CN102925168B - Heat-circulation continuous automated coal pyrolysis method - Google Patents
Heat-circulation continuous automated coal pyrolysis method Download PDFInfo
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- CN102925168B CN102925168B CN201210278077.6A CN201210278077A CN102925168B CN 102925168 B CN102925168 B CN 102925168B CN 201210278077 A CN201210278077 A CN 201210278077A CN 102925168 B CN102925168 B CN 102925168B
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Abstract
The invention discloses a heat-circulation continuous automated coal pyrolysis method. The invention relates to main devices such as a furnace body, a coal feeding device, a preheating device, an in-furnace coal adjusting chamber, an in-furnace coal cooling device, a coal pyrolysis carbonization device, a coke modification device, a dry quenching device, and a raw coke-oven gas out-leading device. The coal pyrolysis carbonization device mainly comprises a carbonization chamber, an outer fuel gas heating device, an inner fuel gas heating device, and a fire path bow. With the method provided by the invention, coal feeding, preheating, carbonizing, coke modifying, dry quenching, and other processes are connected into a whole, such that continuous coking is realized, coking efficiency is improved, and coking cost is reduced.
Description
Technical field
The present invention relates to a kind of pyrolysis of coal method, particularly a kind of thermal cycling continuous and automatic pyrolysis of coal method.
background technology
Coal heat decomposition stove (pit kiln) in the market mostly adopts intermittent type coking, enter stove coal proportioning, dewater, enter coal, preheating, charing, burnt upgrading, dry each processing step such as to put out relatively independent, can not produce continuously, production efficiency is low; In addition, the raw gas producing in pyrolysis of coal process is containing a lot of useful compositions, as H
2s, HCH etc. sour gas, NH
3the organism such as alkaline gas, tar class, benzene class, naphthalene class, washing oil class, do not have the complete complete technique that raw gas derivation, reclaiming clean are used.
This impel the inventor to explore to create a set of complete Continuous coking and to raw gas derive, the in addition complete technique of recycle of reclaiming clean.
summary of the invention
The invention provides a kind of thermal cycling continuous and automatic pyrolysis of coal method, the method can by coal enter coal, preheating, charing, burnt upgrading, the dry technique such as put out conspires to create an entirety, realizes Continuous coking, has improved coking efficiency, has reduced coking cost.
Realizing the technical scheme that above-mentioned purpose takes is:
A kind of thermal cycling continuous and automatic pyrolysis of coal method, the major equipment that present method relates to comprises body of heater, enters device for coal, primary heater unit, enter stove coal surge bunker, enter stove coal refrigerating unit, pyrolysis of coal carbonizing apparatus, burnt modifying apparatus, dryly put out dry device, the raw gas take-up gear of putting out, wherein, pyrolysis of coal carbonizing apparatus mainly comprises that coking chamber, outer gas-operated thermal bath facility, interior burning heater, quirk bow form, and performing step is:
(1), open stove cuttings conveyer and a certain amount ofly after dehydration, enter stove coal to entering to input in stove coal bunker;
(2), open blanking control valve, enter entering stove coal through coal dust distribution chamber and entering stove coal bunker tremie pipe in stove coal bunker and enter into preheater preheating, enter stove coal and after preheating, fall into coal pocket, when detecting the coal in coal pocket, level gage on coal bunker fills it up with, close blanking control valve, stop to coal pocket coal, enter stove coal and first store away in advance at coal pocket;
(3), when needs are in coking chamber when coal, open coal pocket baiting valve and inject stove coal to adding in coking chamber;
(4), in the time that needs stop coal to coking chamber, close coal pocket baiting valve, stop adding stove coal in coking chamber;
(5), in coal pocket, enter stove coal when not enough when level gage under coal bunker detects, open blanking control valve, give coal in coal pocket, fill it up with when level gage on coal bunker detects the coal in coal pocket, close blanking control valve, stop to coal pocket coal.
(6), enter heated in the coking chamber that stove coal enters pyrolysis of coal carbonizing apparatus pyrolysis to occur;
(7), the stove coal that enters that completes of pyrolysis directly drops into burnt modifying apparatus and carries out burnt upgrading, concrete method for modifying is shown in the introduction in above the 4th part second chapter;
(8), use low temperature waste gas after the burning coke directly dropping in dry coke quenching auxiliary 7 after upgrading is completed to carry out the dry cooling of putting out, produce high-temperature combustible gas body simultaneously, the concrete dry method of putting out is shown in the introduction in above the 4th part chapter 4 joint;
(9), the bottom opening of the last low temperature coke quencher from dry coke quenching auxiliary is discharged.
The raw gas that in preferential wherein (6) step, heating means produce pyrolysis of coal in pyrolysis of coal carbonizing apparatus is derived, utilize the purified gas of raw gas after reclaiming clean to carry again burning to provide required heat and temperature to pyrolysis of coal, comprise the purified gas burning heating method in outer combustion gas heating means and interior burning heating method.
Preferably, the equipment that described outer combustion gas heating means are used comprises one group of above identical the first combustion heater of structure, the second combustion heater and gas reversing system, and present method performing step is:
(1), gas reversing system is sent into air, purified gas burning to the combustion chamber of the first combustion heater, the heat heating that air is discharged by the first heat storage becomes the gas-fired in combustion-supporting the first combustion chamber of warm air, the hot waste gas after sucking-off burning from the combustion chamber of the second combustion heater simultaneously, the heat storage absorbing and cooling temperature of hot waste gas in the regenerative heat exchanger of the second combustion heater becomes the relatively low low temperature waste gas of temperature and discharges;
(2), in like manner, gas reversing system is sent into air, purified gas burning to the combustion chamber of the second combustion heater, and the heat heating that air is discharged by the second heat storage becomes the gas-fired in combustion-supporting the second combustion chamber of warm air; The hot waste gas after sucking-off burning from the combustion chamber of the first combustion heater simultaneously, the heat storage absorbing and cooling temperature of hot waste gas in the regenerative heat exchanger of the first combustion heater becomes the relatively low low temperature waste gas of temperature and discharges;
(3), (1), (2) step alternate cycles is carried out.
Preferably, described interior burning heating method, the equipment that present method is used mainly comprises one group of above main internal-quirk, secondary internal-quirk arranged side by side; Described secondary internal-quirk is divided into the secondary internal-quirk of epimere, the secondary internal-quirk in stage casing, the secondary internal-quirk of hypomere, the secondary internal-quirk of described epimere and the secondary internal-quirk of hypomere communicate with main internal-quirk respectively, the secondary internal-quirk in described stage casing forms the independent gas combustion chamber of relative closure, the secondary internal-quirk in a upper stage casing connects into relevant one group to the secondary internal-quirk in next stage casing of next-door neighbour, and present method performing step is:
(1) the high temperature combustible exhaust gas, dry coke quenching being produced is introduced in main internal-quirk and the secondary internal-quirk of hypomere;
(2), at this moment give the air that fills in the secondary internal-quirk of main internal-quirk and hypomere, thereby make high temperature combustible exhaust gas obtain airborne oxygen burning;
(3) waste gas, after the high temperature combustible exhaust gas of the secondary internal-quirk of hypomere burns through a tonifying Qi, around in main internal-quirk, mixes in main quirk and rises with the waste gas after the high-temperature combustible gas body in main internal-quirk and burning;
(4), the gas that again covers in the middle and upper part of main internal-quirk, make mixed high-temperature combustible gas body and burning after waste gas more further burning;
(5), the waste gas after secondary air compensating burning mixes completely mutually between each main internal-quirk and the secondary internal-quirk of epimere;
(6), the waste gas after last secondary air compensating burning is discharged from main internal-quirk and the secondary internal-quirk of epimere top;
(7), meanwhile, alternately add heat to filling into raw gas in the secondary internal-quirk in adjacent two stage casings through the purified gas purifying after reclaiming respectively.
The feature of Continuous coking of the present invention be by coal enter coal, preheating, charing, burnt upgrading, the dry technique such as put out conspires to create in same pyrolysis of coal body of heater, realize Continuous coking, improve coking efficiency, reduce coking cost, overcome the discontinuous production efficiency of existing intermittent type coking technology technique low, how required the assorted plant area of equipment be large, the problem that human cost is high.
accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is that the involved in the present invention stove coal dewatering device that enters is assembled schematic diagram;
Fig. 2 is waste gas water trap schematic diagram (A place enlarged view in Fig. 1) involved in the present invention;
Fig. 3 is coal fine filter one embodiment schematic top plan view of the present invention;
Fig. 4 is another embodiment schematic top plan view of coal fine filter of the present invention;
Fig. 5 is the devices such as the preheating in the present invention and enter stove coal and enter device for coal assembling cross-sectional schematic;
Fig. 6 is C place enlarged view in Fig. 5;
Fig. 7 be of the present invention enter preheater sectional view in stove coal primary heater unit;
Fig. 8 is a-a place sectional view in Fig. 6;
Fig. 9 be of the present invention enter stove coal refrigerating unit schematic diagram;
Figure 10 is b-b place sectional view in Fig. 9;
Figure 11 is F-F place enlarged view in Figure 25;
Figure 12 is x-x place sectional view in Figure 11;
Figure 13 is gas reverser schematic diagram of the present invention;
Figure 14 is gas reverser upper lower burrs schematic diagram of the present invention;
Figure 15 is c-c place schematic cross-section in Figure 14;
Figure 15-1st, gas reverser of the present invention and combustion heater pipe network connection diagram;
Figure 16 is z-z place schematic cross-section in Figure 11, Figure 21;
Figure 17 is w-w place schematic cross-section in Figure 21;
Figure 18 is y-y place schematic cross-section in Figure 21;
Figure 19 is the burnt modifying apparatus schematic diagram (u-u place sectional view in Figure 21) of coal heat decomposition stove of the present invention;
Figure 20 is quirk bow schematic diagram of the present invention (t-t place sectional view in Figure 21);
Figure 21 is pyrolysis of coal carbonizing apparatus schematic diagram of the present invention;
Figure 22 is dry coke quenching auxiliary schematic diagram of the present invention (H-H enlarged view in Figure 25);
Figure 23 quenching bridge bow of the present invention schematic diagram;
Figure 24 is the electrical connection schematic diagram at the industry control center of coal heat decomposition stove of the present invention;
Figure 25 is general illustration in coal heat decomposition stove of the present invention;
Figure 26 is raw gas take-up gear schematic diagram of the present invention.
embodiment
The specific embodiment of a kind of thermal cycling continuous and automatic of the present invention pyrolysis of coal method is mainly being introduced below in detail.
First part enters stove coal proportioning and preparation
A kind of coal heat decomposition stove involved in the present invention, can enter stove coal proportioning according to different, obtains the coke that grade is different.
Following steps: 1) select 5 kinds of different coals, they are respectively bottle coal, rich coal, coking coal, 1/3rd coking coal, lean coal.2) bottle coal 20%～40% wherein; Rich coal 10%～20%; Coking coal 10%～20%; / 3rd coking coal 15%～30%; Lean coal 10%～15%, first mix the fragmentation of then sieving, until reaching 5mm, crushed particles is formed into below stove coal, certainly coal heat decomposition stove of the present invention to other proportioning and granular size to enter stove coal applicable equally, do not form to coal heat decomposition stove of the present invention required enter the restriction of stove coal dust, just lifted enter stove coal proportioning and can reach more than 40% the weakly caking coal amount of allocating into by above, reduced the cost that enters stove coal and can obtain again the coke of better quality, on market, there is fine competitive power simultaneously.
Second section enters stove coal dewatering
Pit kiln in the market mostly adopts intermittent type coking, enters stove coal charge for wet coal, so power consumption has increased the cost of coking, enters dewatering of stove coal in advance to what enter this coal heat decomposition stove, plays energy-saving and cost-reducing effect.
As shown in Figure 1: the described stove coal dewatering device 1 that enters comprises dehydration support body 10, bucket elevator 11, waste gas water trap 12, coal fine filter 13, feed bin 14, fly-ash separator 15, chimney 16, enters stove coal transfer roller 17.
As Fig. 1, shown in Fig. 2: waste gas water trap 12 comprises dehydrator shell 121, hot waste gas master enters pipe 122, the main discharge tracheae 123 of dehydration waste gas, feeder 124, waste gas radiator element 125, above dehydrator shell 121, be provided with feeder 124, below the inner feeder 124 of dehydrator shell 121, be provided with at least one group of waste gas radiator element 125, the inside of waste gas radiator element 125 is provided with hot waste gas admission passage 1251, dehydration waste gas exhaust channel 1252, hot waste gas admission passage 1251 and dehydration waste gas exhaust channel 1252 enter pipe 122 with hot waste gas master respectively, the main discharge tracheae 123 of dehydration waste gas communicates, hot waste gas admission passage 1251 and dehydration waste gas exhaust channel 1252 are and are arranged above and below in the inside of waste gas radiator element 125, be beneficial to the drying and dehydrating into stove coal.
As shown in Figure 2: feeder 124 includes hopper 1241, pan feeding vibratory screening apparatus 1242, blanking channel 1243, blanking vibratory screening apparatus 1244, pan feeding vibratory screening apparatus 1242 is set in material bin 1241, scattered and be provided with multiple blanking channels 1243 by middle part in material bin 1241 belows, below blanking channel 1243, be provided with again blanking vibratory screening apparatus 1244, blanking vibratory screening apparatus 1244 belows arrange waste gas radiator element 125, and the object of design is more even in order to allow stove coal distribute above waste gas radiator element 125 like this.
As shown in Figure 2: the arrangement of three groups of 125 one-tenth upper, middle and lower of waste gas radiator element, waste gas radiator element 125 profiles are made acute triangle upward, between upper group of waste gas radiator element 125 and middle group of waste gas radiator element 125, shift to install, the waste gas radiator element 125 in group is just in time arranged between two adjacent waste gas radiator element 125 in group, in like manner, lower group of waste gas radiator element 125 is just in time arranged between two adjacent waste gas radiator element 125 in middle group, and object is drying area in order to be added to stove coal, is beneficial to into coal and disperses landing.
As Fig. 1, Fig. 2, shown in Fig. 3: coal bunker 14 is set below waste gas radiator element 125, on coal bunker 14, put and be provided with coal fine filter 13, our image is called coal dust respiratory organ, coal fine filter 13 mainly comprises filter body 131, in off-air, enter siphunculus 132, dust funnel 133, in off-air, discharge siphunculus 134, off-air is discharged siphunculus 135 outward, be provided with and in the off-air that leads to top from bottom, enter siphunculus 132 in filter body 131 periphery settings, be provided with dust funnel 133 in filter body inside, dust funnel 133 leads to coal bunker 14, above dust funnel 133, be provided with and in off-air, discharge siphunculus 134, in off-air, enter the mouth 1321 of siphunculus 132 higher than the entrance 1341 of discharging siphunculus 134 in off-air, in off-air, discharging siphunculus 134 is arranged on strainer internal head cover 137, off-air is discharged siphunculus 135 outward and is arranged on the outer top cover 138 of strainer, outside strainer internal head cover 137 and strainer, between top cover 138, be provided with steel fiber filtering net 136.
As shown in Figure 3: in off-air, enter siphunculus 132 and be arranged in filter body 131, in off-air, enter siphunculus 132 and in off-air, discharge 134 one-tenth vertical angles of siphunculus at the interior formation cyclone structure of filter body 131.
As shown in Figure 1: fly-ash separator 15 connects the main discharge tracheae 123 of dehydration waste gas, fly-ash separator 15 is existing dedusting technologies, fly-ash separator 15 comprises shell of dust remover 151, dust settling chamber 152, the main discharge tracheae 123 of dehydration waste gas leads to dust settling chamber 152, dust settling chamber 152 communicates with chimney 16 by induced draft fan 18 again, dust settling chamber 152 belows arrange flyash delivery pipe 153, described dust settling chamber 152 can be wet dedusting, also can adopt dry-method bag-type dust collecting, introduce wet dedusting herein, above the interior dust settling chamber of shell of dust remover 151, be provided with sprinkler head 154, in the water that the main discharge tracheae 123 of dehydration waste gas submerges in dust settling chamber 152.
As Fig. 1, shown in Fig. 2: hot waste gas is entered tracheae 122 and entered the waste gas admission passage 1251 of waste gas radiator element 125 inside by hot waste gas master, enter the main discharge tracheae 123 of dehydration waste gas by the dehydration waste gas exhaust channel 1252 of waste gas radiator element 125 inside again, after cleaning through the water layer in dust settling chamber 152 again, discharge from chimney 16, in hot waste gas, flyash is stayed in water layer and is regularly discharged by flyash delivery pipe 153, both played hot waste gas was purified, can reduce again hot waste gas exhaust temperature, be beneficial to air draft, protection induced draft fan 18, reach the object of clean environment protection emission, the current country of response advocates the requirement of waste gas environment protection emission.
As shown in Figure 1 and Figure 2: the hot waste gas after burning enters tracheae 122 typical temperatures at 700 ℃～800 ℃ entering hot waste gas master, utilize the waste heat of hot waste gas self to heat waste gas radiator element 125, can lower the temperature to the hot waste gas after burning, thereby to dewatering through the stove coal that enters of waste gas radiator element 125, can allow again the water ratio of stove coal below 1%, reach the effective utilization to the hot waste gas after burning, save energy consumption.
As shown in Figure 1 and Figure 2: the discharge bucket 111 of bucket elevator 11 is arranged on material bin 1241 tops, enter stove coal transfer roller 17 and be arranged on the bottom of coal bunker 14.
As shown in figure 24: this example also comprises industry control center 90, industry control center 90 to it directly the induced draft fan 18 of electrical connection, enter stove coal transfer roller 17 and bucket elevator 11 is controlled,
This example also includes stove coal electric controller 901, entering stove coal electric controller 901 controls respectively automatically to entering stove coal transfer roller 17, induced draft fan 18 and bucket elevator 11, enter stove coal electric controller 901 and be connected with upper industry control center 90 again, realize entering the automatization of stove coal dewatering.Certainly, from electric control theory, in this example, enter stove coal transfer roller 17, induced draft fan 18 and bucket elevator 11 and controlled by industry control center 90, so set into the restriction that stove coal electric controller 901 does not form this routine protection domain herein.
This example enters stove coal dewatering Method And Principle:
1, industry control center 90 feeds stove coal electric controller 901 and spreads out of into stove coal transfer roller 17, induced draft fan 18 and bucket elevator 11 initiating signals, the stove coal that enters first proportioning being completed by bucket elevator 11 is sent in dehydrator shell 121 top material bins 1241, by pan feeding vibratory screening apparatus 1242, blanking channel 1243, blanking vibratory screening apparatus 1244, waste gas radiator element 125, finally falls into coal bunker 14;
2, hot waste gas is entered in the waste gas admission passage 1251 that tracheae 122 passes into waste gas radiator element 125 inside by hot waste gas master, enter the main discharge tracheae 123 of dehydration waste gas by the dehydration waste gas exhaust channel 1252 of waste gas radiator element 125 inside again, the water layer cleaning entering again in dust settling chamber 152 by induced draft fan 18 is discharged from chimney 16 afterwards;
3, meanwhile, enter stove coal fall into through waste gas radiator element 125 coal bunker 14 processes also can be to dehydrator shell 121 chambeies in and air in coal bunker 14 storehouses heat, heated air utilizes the heat buoyancy of self to enter in the off-air of coal fine filter 13 and enters siphunculus 132 (as Fig. 3), because the entrance 1321 that enters siphunculus 132 in off-air is higher than the entrance 1341 of discharging siphunculus 134 in off-air, hot off-air forms whirlwind from top to bottom and enters discharge siphunculus 134 in off-air, discharge siphunculus 135 outward and discharge finally by crossing steel fiber filtering net 136 and off-air, thereby the dust in off-air falls into the dust funnel 133 of below and enters coal bunker 14 because steel fiber filtering net 136 intercepts.
Part III enters stove coal and enters coal, preheating, adjusting, cooling
After dehydration enter stove coal through conveying after temperature generally can be down to normal temperature, particularly winter temperature is lower, temperature may be lower, but but it is more suitable to wish that stove coal temperature remains between 200 ℃ to 300 ℃ when coking, so need to carry out preheating before entering the coking chamber of coal heat decomposition stove to entering stove coal.
First segment enters stove coal and enters coal
As shown in Figure 5: enter that device for coal 2 mainly includes stove cuttings conveyer 21, enters stove coal bunker 22, coal dust divides to device 25, coal dust distribution chamber 26, enters stove coal bunker tremie pipe 29, coal fine filter 23.
As shown in Figure 5, enter stove cuttings conveyer 21 and adopt screw conveying structure, be arranged on into stove coal bunker 22 tops, entering stove coal bunker 22 arranges protruding coal dust in the middle of bottoms and divides to device 25, to enter stove coal bunker 22 bottoms and be divided into several coal dust distribution chambers 26, this example arranges 8 coal dust distribution chambers 26 altogether, is connected to respectively stove coal bunker tremie pipe 29, enters on stove coal bunker tremie pipe 29 blanking control valve 24 is set in coal dust distribution chamber 26 bottoms.
As Fig. 5, shown in Fig. 4, coal fine filter 23 (substantially just the same with the coal fine filter structure of introducing in this routine second section) is arranged on the top into stove coal bunker 22, mainly comprise filter body 231, off-air enters siphunculus 232 outward, dust funnel 233, in off-air, discharge siphunculus 234, off-air is discharged siphunculus 235 outward, off-air enters siphunculus 232 outward and is arranged on filter body 231 neighborings, be provided with dust funnel 233 in filter body 231 inside, dust funnel 233 leads to into stove coal bunker 22, above dust funnel 233, be provided with and in off-air, discharge siphunculus 234, off-air enters the entrance of siphunculus 232 outward higher than discharging siphunculus 234 entrances in off-air, off-air enters siphunculus 232 outward and forms cyclone structure with 234 one-tenth vertical angles of discharge siphunculus in off-air at filter body 231, in off-air, discharging siphunculus 234 is arranged on strainer internal head cover 237, off-air is discharged siphunculus 235 outward and is arranged on the outer top cover 238 of strainer, outside strainer internal head cover 237 and strainer, between top cover 238, be provided with steel fiber filtering net 236.
In addition; as shown in figure 24; this example also comprises into device for coal electric controller 902; enter coal electric controller 902 to entering stove cuttings conveyer 21 and blanking control valve 24 is controlled; entering device for coal electric controller 902 is connected with upper industry control center 90 again; certainly from electric control theory, in this example, enter stove cuttings conveyer 21 and blanking control valve 24 and controlled by industry control center 90, do not form restriction to this routine protection domain so arrange into device for coal electric controller 902 herein.
Second section enters the preheating of stove coal
As shown in Figure 5, Figure 6: primary heater unit 39 is placed in into the below of device for coal 2, and primary heater unit 39 is positioned at the top of coal heat decomposition stove 9.
As Fig. 6, Fig. 7, shown in Fig. 8, primary heater unit 39 mainly includes body of heater 91, exhaust air chamber 391, at least one above heating by the exhaust gases passage 392, preheater 393, in body of heater 91 is divided into, in, outer three layers of body of wall 913, 912, 911 (shown in Fig. 8), internal layer body of wall 913 form exhaust air chamber 391 middle level bodies of wall 912 and outer body of wall 911 between form waste gas assemble circuit 395, assemble circuit 395 at waste gas and be provided with waste gas primary outlet 3951, in heating by the exhaust gases passage 392 passes, middle level body of wall 913, exhaust air chamber 391 and waste gas are assembled circuit 395 by 912 to be communicated with, and will between internal layer body of wall 913 and middle level body of wall 912, be separated into several preheating chambers 394 (as shown in Figure 8, this example has 8 heating by the exhaust gases passages 392 will be separated out 8 preheating chambers 394), preheater 393 is placed in respectively each preheating chamber 394.
As shown in Figure 7, Figure 8: 393 one-tenth round shapes of preheater adopt steel, preheater 393 comprises that cylindrical shell 3931, taper divide to device 3932, open wide funnel 3933, pre-hot coal blanking road 3934, taper divides to device 3932 and unlimited funnel 3933 arranges in groups from top to bottom successively on cylindrical shell 3931, is beneficial to entering the even preheating of coal stove.
As shown in Fig. 8, Fig. 6, body of heater 91 adopts circle to be beneficial to space priorization, and between preheater 393 and preheating chamber 394, reserved certain space, utilizes the warm air in exhaust air chamber 391 to heat preheater 393, and homogeneous heating is stable.
As shown in Figure 6, on body of heater 91, be provided with and lead to preheating chamber thermometer hole 3941, preheating chamber thermometer 3942 is arranged on preheating chamber thermometer hole 3941 and exports the temperature variation for monitoring preheating chamber 394, on body of heater 91, be provided with and lead to exhaust air chamber thermometer hole 3914, exhaust air chamber thermometer 3915 is arranged on waste gas thermometer hole 3914 and exports the temperature variation for monitoring exhaust air chamber 391, in addition, at the top of exhaust air chamber 391, upper observation hole 3912 is set, lower observation hole 3913 is set so that technician observes exhaust air chamber 391 in the bottom of exhaust air chamber 391, the working condition of coal heat decomposition stove 9 bottoms.
As shown in Figure 5, Figure 6, preheating chamber 394 is provided with preheating off-air outlet duct 396, the off-air that preheating off-air outlet duct 396 leads to coal fine filter 23 enters siphunculus 232 outward, the hot off-air of dust-laden of preheating chamber 394 tops is entered to off-air and enter outward in siphunculus 232, the stove coal that enters being conducive in coal stove storehouse 22 drops into preheating in preheating chamber 394 smoothly.
As Fig. 5, Fig. 6, shown in Fig. 8, the bottom of exhaust air chamber 391 is provided with hot waste gas admission passage 3911, hot waste gas after burning enters from hot waste gas admission passage 3911, entering waste gas by heating by the exhaust gases passage 392 assembles in circuit 395, finally discharge from the waste gas primary outlet 3951 of waste gas gathering circuit 395, hot waste gas after burning can be to heating by the exhaust gases passage 392 in discharge process, internal layer body of wall 913, internal layer body of wall 912 carries out thermal conduction, the unique texture design of this primary heater unit 39, be to utilize the hot waste gas of discharging after burning from exhaust air chamber 391 to heat air in preheating chamber 394, the stove coal that enters reaching falling into preheater 393 carries out preheating, can lower the temperature to the hot waste gas of discharging after burning from exhaust air chamber 391 again simultaneously, do not need to consume the extra energy, reach self the UTILIZATION OF VESIDUAL HEAT IN object to the hot waste gas after burning.
In addition, as shown in figure 24, this example also comprises that preheating temperature monitor 903 is for monitoring the temperature data of preheating chamber thermometer 3942 and exhaust air chamber thermometer 3915.Preheating temperature monitor 903 is connected with upper industry control center 90 again; certainly from electric control theory; in this example, preheating chamber thermometer 3942 and exhaust air chamber thermometer 3915 are monitored by also can directly at industry control center 90, do not form restriction to this routine protection domain so preheating temperature monitor 903 is set herein.
Section three, the stove coal that enters after preheating regulates
As shown in Figure 5, Figure 6, enter stove coal surge bunker 3, entering stove coal surge bunker 3 is arranged on and on body of heater 91, is positioned at preheater 393 bottoms, the periphery of exhaust air chamber 391, enters stove coal surge bunker 3 and comprises the upper and lower material level meter of coal pocket 31, coal bunker 32,33, coal pocket thermometer 34, coal pocket blanking road 35, coal pocket baiting valve 36.
As shown in Figure 5, Figure 6, coal pocket 31 tops connect preheater 393 bottoms, the upper and lower material level meter 32,33 of coal bunker is located at respectively top and the bottom of coal pocket 31, coal pocket thermometer 34 is positioned at coal pocket 31 middle parts, coal pocket blanking road 35 is connected on the bottom of coal pocket 31 by coal pocket baiting valve 36, coal pocket blanking road 35 leads to coal heat decomposition stove coking chamber 61 (shown in Fig. 9).
In addition, as shown in figure 24: this example also includes stove coal and regulates electric controller 904 for gathering coal bunker, lower level gage 32, 33 material level signal, the temperature signal of coal pocket thermometer 34, realize automatically and controlling with the switching to coal pocket baiting valve 36, entering stove coal regulates electric controller 904 to be connected with upper industry control center 90 again, certainly from electric control theory, in this example, gather on coal bunker, lower level gage 32, 33 material level signal, the temperature signal of coal pocket thermometer 34 is gathered by also can directly at industry control center 90, coal pocket baiting valve 36 opens and closes and controlled by industry control center 90, regulate electric controller 904 not form the restriction to this routine protection domain so set into stove coal herein.
This example enters stove coal control method:
1, the stove coal that enters after preheating is injected to coal pocket 31 and first stores away in advance, when needs to coking chamber 61 in when coal, industry control center 90 is opened coal pocket baiting valve 36 and is injected into stove coal in coking chamber 61;
2, in the time that needs stop coal to coking chamber, coal pocket baiting valve 36 is closed at industry control center 90, stops adding stove coal in coking chamber 61;
3, in the time that level gage under coal bunker 33 detects the coal deficiency in coal pocket 31, blanking control valve 24 is opened at industry control center 90, give coal in coal pocket 31, when detecting the coal in coal pocket 31, level gage on coal bunker 32 fills it up with, blanking control valve 24 is closed at industry control center 90, stop to coal pocket 31 coals, the stove coal that enters playing entering coking chamber 61 regulates.
As shown in Figure 5, Figure 6, coal pocket 31 tops are also provided with coal pocket hot air discharge passage 37, the off-air that coal pocket hot air discharge passage 37 leads to coal fine filter 23 enters siphunculus 232 outward, the dust-laden warm air of coal pocket 31 tops is entered off-air and is entered outward in siphunculus 232, is beneficial to coal smoothly in coal pocket 31
Section four, enter before coking chamber to enter stove coal cooling
As shown in Figure 9, coal pocket blanking road 35 is in the time of the coking chamber 61 note coal to coal heat decomposition stove, because coking chamber 61 tops exist the raw gas producing in a large amount of pyrolysis of coal processes, the higher meeting of raw gas temperature is carried out thermal conduction to coal pocket blanking road 35 bodys and body of heater 91, cause stove coal easily to lump in coal pocket blanking road 35, hinder and note coal in coking chamber 61, thereby need to carry out cooling to entering stove coal.
As Fig. 9, shown in Figure 10, enter stove coal refrigerating unit 5 and comprise that air enters siphunculus 57, Bas Discharged siphunculus 51, air enters endless tube 56, Bas Discharged endless tube 52, air enters arm 54, Bas Discharged arm 53, cooling air channel 55, wherein, air enters siphunculus 57 and enters endless tube 56 with air, Bas Discharged siphunculus 51 communicates with Bas Discharged endless tube 52, air enters endless tube 56, Bas Discharged endless tube 52 is separately positioned on the surrounding of body of heater 91, air enters and on endless tube 56 and Bas Discharged endless tube 52, is connected to respectively air and enters arm 54, Bas Discharged arm 53, wherein air enters arm 54 and is connected on cooling air channel 55 belows, Bas Discharged arm 53 is connected on the top of cooling air channel 55, coal pocket blanking road 35 passes and leads to coking chamber 61 from cooling air channel 55.
As Figure 10, shown in Fig. 9, because this body of heater 91 is designed to annular, the coal pocket 31 that is provided with 8 note coals in its surrounding is beneficial to coking chamber 61 surroundings and carries out even coal, so the quantity in cooling air channel 55 and coal pocket blanking road 35 is corresponding is also 8, siphunculus 57, enter successively air and enter endless tube 56 when air enters from air, air enters arm 54, cooling air channel 55, again from Bas Discharged arm 53, Bas Discharged endless tube 52, in Bas Discharged siphunculus 51, discharge, utilizing in cooling air channel 55 carries out cooling to the stove coal that enters in coal pocket blanking road 35, effectively prevent that stove coal from luming in coal pocket blanking road 35, realize and in coking chamber 61, note coal smoothly.
In addition, coal pocket blanking road 35 is mainly that the inner side that relies on coking chamber 61 is subject to the heat affecting of raw gas larger, so the inner side-wall 351 in coal pocket blanking road 35 is placed in cooling air channel 55, the outer side wall 352 in coal pocket blanking road 35 is exposed in air, utilize natural air to carry out cooling, reduce to blast the air quantity in cooling air channel 55, thereby save energy consumption.
Part IV enters stove pyrolysis of coal (charing heating, burnt upgrading, dry coke quenching)
First segment enters stove pyrolysis of coal charing heating
As shown in figure 25, pyrolysis of coal carbonizing apparatus 6 is arranged on body of heater 91 middle parts, mainly comprises that coking chamber 61, outer gas-operated thermal bath facility 64, interior burning heater 67, quirk bow 65 form, as shown in figure 12: coking chamber 61 is by fire-resistant thermally conductive material, outer ring wall 612, 611 form an annulus, being centered around coking chamber exterior wall 611, to encircle periphery be outer gas-operated thermal bath facility 64, wherein outer gas-operated thermal bath facility 64 is mainly some groups of identical the first combustion heaters 62 of (9 groups of this examples) structure, the second combustion heater 60 and gas reversing system 66 form, in addition, as shown in figure 25: because coking chamber 61 is highly higher, wherein outer gas-operated thermal bath facility 64 is mainly divided into, in, lower Three-section type heating, every section has 9 groups of identical first combustion heaters 62 of structure, the second combustion heater 60 forms.
As shown in figure 16: in coking chamber, in ringwall 612 rings, be interior burning heater 67, interior burning heater 67 is mainly by some groups of the 3rd combustion heater 68, the 4th combustion heater 69 and the quenching waste gas heaters 63 that (3 groups of this examples) structure is identical.
As shown in figure 11, the first described combustion heater 62 mainly comprises that the first combustion chamber 621, the first coal gas enter arm 622 and the first regenerative heat exchanger 624.
As shown in figure 12: body of heater 91 exterior walls that be made up of refractory materials the first combustion chamber 621 and fire-resistant thermally conductive material are made coking chamber outer ring wall 611 and outer quirk partition wall 625 and surround the gas-fired quirk of a relative closure.
As shown in figure 11: the first coal gas enters arm 622 and leads in the first combustion chamber 621 through body of heater 91 exterior walls.
As shown in Figure 11,12: the first regenerative heat exchanger 624 comprises that the first accumulation of heat chamber 626, the first heat storage 623, the first air enter arm 627 and the first combustion exhaust exhaust outlet 628; The first accumulation of heat chamber 626 is arranged in body of heater 91 exterior walls, the first heat storage 623 arranges in the first accumulation of heat chamber 626,621 bottoms, the first combustion chamber are led in the first 626 one end, accumulation of heat chamber, and the other end is connected to respectively the first air and enters arm 627 and the first combustion exhaust exhaust outlet 628.
As shown in figure 12: enter and between arm 627 and the first accumulation of heat chamber 626, be provided with the first one-way air valve 629, the first one-way air valves 629 and allow air to enter pipe 627 and the first accumulation of heat chamber 626 flows into the first combustion chamber 621 from the first air at the first air; Between the first combustion exhaust exhaust outlet 628 and the first accumulation of heat chamber 626, be provided with the first unidirectional waste gas valve 620, the first unidirectional waste gas valve 620 allows the gas-fired waste gas first accumulation of heat chamber 626 of flowing through from the first combustion chamber 621, finally discharge (certainly from the first combustion exhaust exhaust outlet 628, adopt gas reversing system 66 as described below, when air supervisor 667 is in charge of 6671 connections with the first air, air supervisor 667 and the second air are in charge of 6673 in cut-out; Meanwhile, combustion exhaust supervisor 669 is in charge of 6691 with the first combustion exhaust and also cuts off mutually, and corresponding combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693 in being connected, can play the effect that replaces the first one-way air valve 629 and the first unidirectional waste gas valve 620).
In like manner, as shown in figure 12: identical the second combustion heater 60 of structure mainly comprises that the second combustion chamber 601, the second coal gas enter arm 602 and the second regenerative heat exchanger 604.
As shown in figure 12: body of heater 91 exterior walls that be made up of refractory materials the second combustion chamber 601 and fire-resistant thermally conductive material are made coking chamber outer ring wall 611 and outer quirk partition wall 625 and surround the gas-fired quirk of a relative closure.
As shown in figure 12: the second coal gas enters arm 602 and leads in the first combustion chamber 601 through body of heater 91 exterior walls.
As shown in figure 12: the second regenerative heat exchanger 604 comprises the second accumulation of heat chamber 606, the second heat storage 603, the second air enters arm 607 and the second combustion exhaust exhaust outlet 608, the second accumulation of heat chamber 606 is arranged in body of heater 91 exterior walls, the second heat storage 603 arranges in the second accumulation of heat chamber 606, 601 bottoms, the second combustion chamber are led in the second 606 one end, accumulation of heat chamber, the other end is connected to respectively the second air and enters arm 607 and the second combustion exhaust exhaust outlet 608, enter between arm 607 and the second accumulation of heat chamber 606 and be provided with the second one-way air valve 609 at the second air, the second one-way air valve 609 allow air from the second air enter pipe 607 and second accumulation of heat chamber 606 flow into the second combustion chamber 601, between the second combustion exhaust exhaust outlet 608 and the second accumulation of heat chamber 606, be provided with the second unidirectional waste gas valve 600, the second unidirectional waste gas valve 600 allows the gas-fired waste gas second accumulation of heat chamber 606 of flowing through from the second combustion chamber 601, finally discharge (certainly from the second combustion exhaust exhaust outlet 608, adopt gas reversing system 66 as described below, when air supervisor 667 and the first air are in charge of 6671 cut-outs, air supervisor 667 and the second air are in charge of 6673 in connecting, meanwhile, combustion exhaust supervisor 669 and the first combustion exhaust are in charge of 6691 and are also connected, and corresponding combustion exhaust supervisor 669 is in charge of 6693 also cut-outs mutually with the second combustion exhaust, can play the effect that replaces the second one-way air valve and the second unidirectional waste gas valve).
As shown in Figure 11, Figure 12, between the second combustion chamber 601 of the first combustion chamber 621 and next-door neighbour, the top of outer quirk partition wall 625 is provided with combustion chamber through hole 6251, combustion chamber through hole 6251 is connected the first combustion chamber 621 to form associated one group with the second combustion chamber 601 of next-door neighbour, in this example, outer gas-operated thermal bath facility 64 is provided with quirk partition wall 625 partition walls outside 18 roads altogether, forms 9 groups of associated burning groups; In addition, as shown in figure 25; Because coking chamber 61 is highly higher, wherein outer gas-operated thermal bath facility 64 is mainly divided into the heating of upper, middle and lower segment formula, and every section has 9 groups of identical the first combustion heaters 62 of structure, second combustion heaters 60 to form.
In sum, combustion heater and regenerative heat exchange method are;
1, in the time that the coal gas in the first combustion chamber 621 burns, purified gas after raw gas reclaiming clean enters arm 622 by the first coal gas and enters in the first combustion chamber 621, the first one-way air valve 629 is opened, allow air from the first air enter pipe 627 and first accumulation of heat chamber 626 flow into the first combustion chamber 621; The first described unidirectional waste gas valve 620 is closed, the hot waste gas producing leads to 6251 holes by combustion chamber and enters behind the second combustion chamber 601, hot waste gas is during through the second heat storage 603 in the second accumulation of heat chamber 606, the second heat storage 603 carries out absorbing and cooling temperature to hot waste gas, and hot waste gas becomes the relatively low low temperature waste gas of temperature and discharges from the second combustion exhaust exhaust outlet 608;
2, when take turns in the second combustion chamber 601 gas-fired time, purified gas after raw gas reclaiming clean enters arm 602 by the second coal gas and enters in the second combustion chamber 601, the second one-way air valve 609 is opened, air enters arm 607 from the second air and enters into the second combustion chamber 601 processes through the second accumulation of heat chamber 606, and the heat heating that air is discharged by the second heat storage 603 becomes the gas-fired in combustion-supporting the second combustion chamber 601 of warm air; Meanwhile, the second described unidirectional waste gas valve 600 is closed, hot waste gas after gas-fired in the second combustion chamber 601 enters behind the first combustion chamber 621 by combustion chamber through hole 6251, hot waste gas is during through the first heat storage 623 in the first accumulation of heat chamber 626, the first heat storage 623 carries out absorbing and cooling temperature to hot waste gas, and hot waste gas becomes the relatively low low temperature waste gas of temperature and discharges from the first combustion exhaust exhaust outlet 628;
3, in like manner, the 1st step and the 2nd step alternate cycles are carried out.
As shown in figure 11: each chamber temperature monitoring holes 6201 and combustion chamber spy hole 6202 of being also provided with on body of heater 91 exterior walls, combustion chamber spy hole 6202 is convenient to technician's gas-fired situation of observing each combustion chamber directly perceived, in chamber temperature monitoring holes 6201, be provided with chamber temperature table 6203 for the temperature monitoring to combustion chamber, so that the assessment to pyrolysis of coal process.
As shown in figure 24: chamber temperature table 6203 is connected with industry control center 90, automatically gathered the temperature data of chamber temperature table 6203 by industry control center 90.
As Figure 13, Figure 14, shown in Figure 15-1, gas reversing system 66 comprises dish 661, lower wall 662, rotation reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666, lower wall 662 is connected to respectively an air supervisor 667 and the first air is in charge of 6671, the second air is in charge of 6673, coal gas supervisor 668 and the first gas manifold 6681, the second gas manifold 6683, combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693, the first combustion exhaust is in charge of 6691, wherein, the second combustion exhaust be in charge of 6693 and first combustion exhaust be in charge of 6691 and first air be in charge of 6671 and second air be in charge of 6673 and the setting of first gas manifold 6681 and the second gas manifold 6683 just exchange (Figure 14, shown in Figure 15-1).
As Figure 13, 15, shown in Figure 15-1: above coil 661 and be fitted in lower wall 662 tops, upper dish 661 respectively correspondence is provided with air pipe connecting 6672, coal gas pipe connecting 6682, combustion exhaust pipe connecting 6692, thereby rotation reversing motor 663 drive upper dish 661 reciprocating rotation on lower wall 662 realize air supervisor 667 constantly with the first air be in charge of 6671 and second air be in charge of 6673 and connect and cut off conversion, coal gas supervisor 668 constantly connects and cuts off conversion with the first gas manifold 6681 and the second gas manifold 6683, combustion exhaust supervisor 669 constantly with the second combustion exhaust be in charge of 6693 and first combustion exhaust be in charge of 6691 connect and cut off conversion (with the first air be in charge of 6671 and second air be in charge of 6673 and the switching of first gas manifold 6681 and the second gas manifold 6683 just contrary).
As shown in Figure 11, Figure 15-1, be also provided with two groups of bustle pipes in the periphery of body of heater 91, comprise the first air bustle pipe 6674, the first coal gas bustle pipe 6684, the first combustion exhaust bustle pipes 6694; The second air bustle pipe 6675, the second coal gas bustle pipe 6685, the second combustion exhaust bustle pipes 6695.
As shown in Figure 15-1: the first air bustle pipe 6674 by the first air be in charge of 6671 and first air enter arm 627 and link up, by the first air be in charge of 6671, the first air bustle pipe 6674, the first air enter arm 627, the first accumulation of heat chamber 626 and the first combustion chamber 621 and form same path;
Meanwhile, the first coal gas bustle pipe 6684 enters arm 622 by the first gas manifold 6681 and the first coal gas and links up, by the first gas manifold 6681, the first coal gas bustle pipe 6684, the first coal gas enters arm 622 and the first combustion chamber 621 forms same path;
Simultaneously now, the first combustion exhaust bustle pipe 6694 be by the first combustion exhaust be in charge of 6681 and first combustion exhaust exhaust outlet 628 link up, by the first combustion exhaust be in charge of 6681, the first combustion exhaust exhaust outlet 628, the first accumulation of heat chamber 626 form same path with combustion chamber 621.
In like manner, the second air bustle pipe 6675 by the second air be in charge of 6673 and second air enter arm 607 and link up, by the second air be in charge of 6673, the second air bustle pipe 6675, the second air enter arm 607, the second accumulation of heat chamber 606 and the second combustion chamber 601 and form same path;
Meanwhile, the second coal gas bustle pipe 6685 enters arm 602 by the second gas manifold 6683 and the second coal gas and links up, by the second gas manifold 6683, the second coal gas bustle pipe 6685 will, the second coal gas enters arm 602 and the second combustion chamber 601 forms same path;
Meanwhile, the second combustion exhaust bustle pipe 6695 by the second burning gas be in charge of 6693 and second combustion exhaust exhaust outlet 608 link up, by the second combustion exhaust be in charge of 6693, the second combustion exhaust exhaust outlet 608, the second accumulation of heat chamber 606 and the second combustion chamber 601 form same path.
In addition; as shown in figure 24; this example also comprises that gas reversing system controller 906 is for controlling rotation reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666; reversing system electric controller 906 is connected with upper industry control center 90 again; certainly from electric control theory; in this example, rotate reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666 and controlled by industry control center 90, so the restriction that gas reversing system controller 906 does not form this routine protection domain is set herein.
As shown in Figure 11, Figure 15-1 and Figure 12～Figure 15, the heating means of outer gas-operated thermal bath facility 64 are:
(1) the rotation reversing motor 663 of gas reversing system 66 drives upper dish 661 to rotate on lower wall 662, and air supervisor 667 and the first air are in charge of 6671 connections, and air supervisor 667 and the second air are in charge of 6673 in dissengaged positions; Meanwhile, coal gas supervisor 668 and the first gas manifold 6681 are also connected, coal gas supervisor 668 and the second gas manifold 6683 dissengaged positions; Meanwhile, combustion exhaust supervisor 669 is in charge of 6691 with the first combustion exhaust and also cuts off mutually, and corresponding combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693 in the state of being connected;
(2) air blower 664 by air blast air supervisor 667, air successively through air pipe connecting 6672, the first air be in charge of 6671, the first air bustle pipe 6674, the first air enter arm 627 and enter into the first accumulation of heat chamber 626, enter in the first combustion chamber 621 after utilizing heat that the first heat storage 623 discharges to heat air, simultaneously, gas fan 665 obtains raw gas purified gas and blasts coal gas supervisor 668 after reclaiming clean, coal gas passes through coal gas pipe connecting 6682 successively, the first gas manifold 6681, the first coal gas bustle pipe 6684, the first coal gas enters arm 622 and enters in the first combustion chamber 621 and burn, meanwhile, because combustion exhaust supervisor 669 is in charge of 6691 in phase dissengaged positions with the first combustion exhaust, and corresponding combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693 in the state of being connected, so the waste gas in the first combustion chamber 621 after gas-fired can only enter into the second combustion chamber 601 by the combustion chamber through hole 6251 on outer quirk partition wall 625 tops, again after the second heat storage 603 in the second accumulation of heat chamber 606 carries out absorbing and cooling temperature from the second combustion exhaust exhaust outlet 608, the second combustion exhaust bustle pipe 6695, the second combustion exhaust is in charge of 6693, combustion exhaust supervisor 669 discharges by exhaust gas fan 666,
(3) through burning after a while, the rotation reversing motor 663 of gas reversing system 66 drives upper dish 661 to rotate backward on lower wall 662, air supervisor 667 and the first air are in charge of 6671 cut-outs, air supervisor 667 and the second air are in charge of 6673 in on-state, simultaneously, coal gas supervisor 668 also cuts off mutually with the first gas manifold 6681, coal gas supervisor 668 and the second gas manifold 6683 on-states, meanwhile, combustion exhaust supervisor 669 and the first combustion exhaust are in charge of 6691 and are also connected, and corresponding combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693 also phase dissengaged positions,
(4) air blower 664 by air blast air supervisor 667, air successively through air pipe connecting 6672, the second air be in charge of 6673, the second air bustle pipe 6675, the second air enter arm 607 and enter into the second accumulation of heat chamber 606, after the heat that utilizes the second heat storage 603 in the second accumulation of heat chamber 606 to discharge heats air, enter in the second combustion chamber 601, simultaneously, gas fan 665 obtains raw gas purified gas and blasts coal gas supervisor 668 after reclaiming clean, coal gas passes through coal gas pipe connecting 6682 successively, the second gas manifold 6683, the second coal gas bustle pipe 6685, the second coal gas enters arm 602 and enters in the second combustion chamber 601 and burn, meanwhile, because combustion exhaust supervisor 669 and the first combustion exhaust are in charge of 6691 and are connected, and corresponding combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693 in phase dissengaged positions, so the waste gas in the second combustion chamber 601 after gas-fired can only enter in the first combustion chamber 621 by the combustion chamber through hole 6251 on outer quirk partition wall 625 tops, again through the first accumulation of heat chamber 626, in the first heat storage 603 absorbing and cooling temperatures after, finally from the first combustion exhaust exhaust outlet 628, the first combustion exhaust bustle pipe 6694, the first combustion exhaust is in charge of 6691, combustion exhaust supervisor 669 discharges by exhaust gas fan 666.
So, outer gas-operated thermal bath facility 64 combustion principle are to enter the second combustion chamber 601 when the waste gas generating after gas-fired in the first combustion chamber 621 from combustion chamber through hole 6251, after the second heat storage 603 in the second combustion chamber 601 and the second accumulation of heat chamber 606 is to its exhaust-heat absorption cooling, discharge.
Otherwise, when the waste gas generating after gas-fired in the second combustion chamber 601 enters the first combustion chamber 621 from combustion chamber through hole 6251, after the first heat storage 603 in the first combustion chamber 621 and the first accumulation of heat chamber 606 is to its exhaust-heat absorption cooling, discharge.
In sum, this gas two by gas reversing system enters the mode of operation of the regenerative heat exchange of a mode of operation outing and regenerative heat exchanger, realize two groups of combustion heater alternate combustion, be that gas reversing system is sent into air, purified gas burning to the combustion chamber of the first combustion heater, the hot waste gas after sucking-off burning from the combustion chamber of the second combustion heater simultaneously, the second heat storage absorbing and cooling temperature of hot waste gas in the second regenerative heat exchanger of the second combustion heater becomes the relatively low low temperature waste gas of temperature and discharges; In like manner, gas reversing system is sent into air, purified gas burning to the combustion chamber of the second combustion heater, the hot waste gas after sucking-off burning from the combustion chamber of the first combustion heater simultaneously, the first heat storage absorbing and cooling temperature of hot waste gas in the first regenerative heat exchanger of the first combustion heater becomes the relatively low low temperature waste gas of temperature and discharges; This method of mutually utilizing waste gas residual heat after gas-fired to add warm air, both played the waste gas residual heat after gas-fired had been made full use of, improve the efficiency of combustion of the coal gas in combustion chamber, can carry out cooling to a certain degree to the waste gas after gas-fired again, need not consume the external energy, play energy-saving and cost-reducing object, save coking cost.
As shown in Figure 11, Figure 15-1 and Figure 12～Figure 15, Figure 24: the automatic heating control method of this outer gas-operated thermal bath facility 64 is:
(1) industry control center 90 startup rotation reversing motors 663 drive the rotation on lower wall 662 of upper dish 661, and air supervisor 667 and the first air are in charge of 6671 connections, and air supervisor 667 and the second air are in charge of 6673 in dissengaged positions; Meanwhile, coal gas supervisor 668 and the first gas manifold 6681 are also connected, and coal gas supervisor 668 and the second gas manifold 6683 are in dissengaged positions; Meanwhile, combustion exhaust supervisor 669 is in charge of 6691 with the first combustion exhaust and also cuts off mutually, and corresponding combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693 in the state of being connected.
(2)) industry control center 90 starts air blower 664, gas fan 665, exhaust gas fan, air blower 664 by air blast air supervisor 667, air enter successively through air pipe connecting 6672, the first air be in charge of 6671, the first air bustle pipe 6674, the first air enter arm 627 and enter into the first accumulation of heat chamber 626, enter in the first combustion chamber 621 after utilizing heat that the first heat storage 623 discharges to heat air, simultaneously, gas fan 665 obtains raw gas purified gas and blasts coal gas supervisor 668 after reclaiming clean, coal gas enters coal gas pipe connecting 6682 successively, the first gas manifold 6681, the first coal gas bustle pipe 6684, the first coal gas enters arm 622 and enters in the first combustion chamber 621 and burn, meanwhile, because combustion exhaust supervisor 669 is in charge of 6691 in phase dissengaged positions with the first combustion exhaust, and corresponding combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693 in the state of being connected, so the waste gas in the first combustion chamber 621 after gas-fired can only enter into the second combustion chamber 601 by the combustion chamber through hole 6251 on outer quirk partition wall 625 tops, again through in the second accumulation of heat chamber 606, after the second heat storage 603 in the second accumulation of heat chamber 606 carries out absorbing and cooling temperature from the second combustion exhaust exhaust outlet 608, the second combustion exhaust bustle pipe 6695, the second combustion exhaust is in charge of 6693, combustion exhaust supervisor 669 discharges by exhaust gas fan 666,
(3) reach and set combustion time, industry control center 90 starts rotation reversing motor 663 and drives upper dish 661 to rotate backward on lower wall 662, air supervisor 667 and the first air are in charge of 6671 cut-outs, air supervisor 667 and the second air are in charge of 6673 in on-state, simultaneously, coal gas supervisor 668 also cuts off mutually with the first gas manifold 6681, coal gas supervisor 668 and the second gas manifold 6683 on-states, meanwhile, combustion exhaust supervisor 669 and the first combustion exhaust are in charge of 6691 and are also connected, and corresponding combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693 also phase dissengaged positions,
(4) air blower 664 by air blast air supervisor 667, air enter successively through air pipe connecting 6672, the second air be in charge of 6673, the second air bustle pipe 6675, the second air enter arm 607 and enter into the second accumulation of heat chamber 606, after the heat that utilizes the second heat storage 603 in the second accumulation of heat chamber 606 to discharge heats air, enter in the second combustion chamber 601, simultaneously, gas fan 665 blasts coal gas supervisor 668 by obtaining purified gas after raw gas is after reclaiming only, coal gas enters coal gas pipe connecting 6682 successively, the second gas manifold 6683, the second coal gas bustle pipe 6685, the second coal gas enters arm 602 and enters in the second combustion chamber 601 and burn, with this this simultaneously, because combustion exhaust supervisor 669 and the first combustion exhaust are in charge of 6691 and are connected, and corresponding combustion exhaust supervisor 669 and the second combustion exhaust are in charge of 6693 in phase dissengaged positions, so the waste gas in the second combustion chamber 601 after gas-fired can only enter in the first combustion chamber 621 by the combustion chamber through hole 6251 on outer quirk partition wall 625 tops, again through the first accumulation of heat chamber 626, (through) the first heat storage 603 in the first accumulation of heat chamber 626 carries out after absorbing and cooling temperature, finally from the first combustion exhaust exhaust outlet 628, the first combustion exhaust bustle pipe 6694, the first combustion exhaust is in charge of 6691, combustion exhaust supervisor 669 discharges by exhaust gas fan 666.
Heating by external gas-operated thermal bath facility 64 is controlled automatically, reduces human cost, has improved the control accuracy to pyrolysis of coal process, realizes automatization.
As shown in Figure 16, Figure 25, interior burning heater 67 is mainly by some groups of identical combustion heater 68,69 and the quenching waste gas heaters 63 of (3 groups of this examples) structure.
As shown in Figure 21, Figure 18, quenching waste gas heater 63 comprises that internal-quirk 631, air mend pipe 632, blowdown pipe 6321, secondary air compensating pipe 6322, tonifying Qi circuit 633, center ringwall 634, internal-quirk partition wall 635, centre channel 638, and internal-quirk 631 is arranged on quirk bow 65.
As shown in figure 18, internal-quirk 631 mainly by ringwall in coking chamber 612 be positioned at coking chamber ringwall 612Nei center ringwall 634 internal-quirk partition wall 635 together with at least and be divided at least one group of above main internal-quirk 636, secondary internal-quirk 637 arranged side by side, as shown in figure 18,636 and 6 secondary internal-quirks 637 of 6 main internal-quirks of this example, form side by side and amount to 6 groups of internal-quirks 631.
As shown in figure 21, in secondary internal-quirk 637, shutoff dividing plate 6371 is set, lower shutoff dividing plate 6372, is divided into upper, middle and lower segment by secondary internal-quirk 637, i.e. the secondary internal-quirk 6375 of epimere, the secondary internal-quirk 6374 in stage casing, the secondary internal-quirk 6373 of hypomere; On quirk partition wall 635 between the secondary internal-quirk 6375 of epimere and main internal-quirk 636, be provided with waste gas and gang up hole 6303, hot waste gas exhaust channel 6306 is offered at the secondary internal-quirk 6375 of epimere and main internal-quirk 636 tops, and hot waste gas exhaust channel 6306 communicates with the exhaust air chamber 391 on body of heater 91 tops.
As shown in Figure 21, Figure 18, on quirk partition wall 635 between the secondary internal-quirk 6373 of hypomere and main internal-quirk 636, quirk is set and gangs up hole 6304, quirk is ganged up hole 6304 near lower shutoff dividing plate 6372 belows, as shown in figure 18,6 quirks are ganged up hole 6304 connects secondary 6 hypomeres internal-quirks 6373 respectively with main internal-quirk 636 together with.
As shown in figure 21, center ringwall 634 surrounds centre channel 638, in centre channel 638, with the concordant place of upper shutoff dividing plate 6371, one channel partition 6382 is set, centre channel 638 is separated into upper and lower two portions, be that formation high temperature combustible exhaust gas admission passage 6383 is divided in bottom, formation buffer zone 6381 is divided on top.
As shown in Figure 19, Figure 21, ringwall 634 bottoms in center are provided with perforation high temperature combustible exhaust gas admission passage 6383 and enter hole 639 with the combustible exhaust gas of main internal-quirk 636 and the secondary internal-quirk 6373 of hypomere, and ringwall 634 tops in center are provided with perforation buffer zone 6381 and enter hole 6301 with the waste gas of main internal-quirk 636 and epimere pair internal-quirk 6375.
As shown in Figure 21, Figure 20, Figure 19: tonifying Qi circuit 633 is arranged on body of heater 91, air is mended pipe 632 and is led to tonifying Qi circuit 633, blowdown pipe 6321, secondary air compensating pipe 6322 and tonifying Qi circuit 633 UNICOMs, below the bar bow 651 of quirk bow 65 through the inside that extends upwardly to the quirk partition wall 635 major and minor internal-quirk 636,637.
As shown in Figure 21, Figure 12: blowdown pipe 6321 be arranged on major and minor internal-quirk 636,637 between the inside of quirk partition wall 635, the outlet 6323 of a blowdown pipe 6321 is positioned at lower shutoff dividing plate below 6372, leads to respectively the secondary internal-quirk 6373 of main internal-quirk 636 and hypomere;
As shown in figure 21, secondary air compensating pipe 6322 is also arranged on the inside of the quirk partition wall 635 of major and minor internal-quirk 636,637, and the secondary air compensating of secondary air compensating pipe 6322 outlet 6324 is positioned at upper shutoff dividing plate 6371 concordant or a little higher than with upper shutoff dividing plate 6371, lead to main internal-quirk 636.
As shown in Figure 21, Figure 17, the secondary internal-quirk 6374 in stage casing forms the independent gas combustion chamber of relative closure, the secondary internal-quirk 6374 in a upper stage casing connects into relevant one group to the secondary internal-quirk 6374 in next stage casing of next-door neighbour by chamber passage 6305, chamber passage 6305 below upper shutoff dividing plate 6371 and from pass in a main internal-quirk 636 between next stage casing pair internal-quirk 6374 of the secondary internal-quirk 6374 in stage casing and next-door neighbour, as shown in figure 17,6 secondary internal-quirks 6374 in stage casing connect into 3 groups by 3 chamber passages 6305.
As Figure 21, Figure 16, shown in Figure 17, the secondary internal-quirk 6374 in two stage casings in secondary internal-quirk 637 (is gone up, lower shutoff dividing plate 6371, between 6372) one group of association the 3rd combustion heater 68 that structure is identical is set, the 4th combustion heater 69, the first burning heater 62 of its structure and combustion principle and above introduction, the second burning heater 60 is almost identical, also comprise that the 3rd combustion heater 68 comprises the 3rd combustion chamber 681, the 3rd coal gas enters arm 682, the 3rd accumulation of heat chamber 686, the 3rd heat storage 683, the 3rd air enters arm 687 and the 3rd combustion exhaust exhaust outlet 688.
As shown in Figure 21, Figure 16, need to illustrate different is the secondary internal-quirk 6374 in the 3rd 681Shi stage casing, combustion chamber of the 3rd burning heater 68, by relatively airtight gas-fired quirk between upper and lower shutoff dividing plate 6371,6372.
As Figure 21, Figure 20, shown in Figure 19: the 3rd coal gas enters arm 682 and leads to the 3rd combustion chamber 681 (being stage casing pair internal-quirk 6374) through upwards extending past quirk partition wall 635 inside below from article bow 651 of quirk bow 65, the 3rd accumulation of heat chamber 686 is arranged on article body of heater that bends 651 belows 91, the 3rd heat storage 683 is placed in the 3rd accumulation of heat chamber 686, the 3rd 686 one end, accumulation of heat chamber is passed below article bow 651 of quirk bow 65 by extending passage 6861, upwards extend past quirk partition wall 635 inside and lead to 681 bottoms, the 3rd combustion chamber, the 3rd accumulation of heat chamber 686 the other ends are connected to respectively the 3rd air and enter arm 687 and the 3rd combustion exhaust exhaust outlet 688.
In like manner, the 4th combustion heater 69 structures are complete identical with the 3rd combustion heater 68, repeat no more here, and wherein the 4th combustion chamber 691 is connected and formed associated one group (shown in Figure 17) by chamber passage 6305 with the 3rd combustion chamber 681.
Wherein, as shown in Figure 15-1, the 3rd coal gas of the 3rd combustion chamber 681 of the 3rd burning heater 68 enter arm 682, the 3rd air enter arm 687 and the 3rd combustion exhaust exhaust outlet 688 respectively by the first coal gas bustle pipe 6684, the first air bustle pipe 6674, the first combustion exhaust bustle pipes 6694 and the first gas manifold 6681, the first air be in charge of 6671, the first combustion exhaust is in charge of 6691 and communicates.
As shown in Figure 15-1, the 4th coal gas of the 4th combustion chamber 691 of the 4th burning heater 69 enter arm 692, the 3rd air enter arm 697 and the 3rd combustion exhaust exhaust outlet 698 respectively by the second coal gas bustle pipe 6685, the second air bustle pipe 6675, the second combustion exhaust bustle pipe 6695 and the second gas manifold 6683, the second air be in charge of 6673, the second combustion exhaust is in charge of 6693 and communicates.
In sum, the 3rd burning heater 68, the 4th combustion heater 69, combustion principle and above the first burning heater 62, the second burning heater 60 are almost identical, repeat no more here.
(2), at this moment give the air that fills in main internal-quirk 636 and the secondary internal-quirk 6373 of hypomere by a blowdown pipe 6321, thereby make high temperature combustible exhaust gas obtain airborne oxygen burning, the amount of the combustible gas in high-temperature combustible gas body is certain after all, and the heat and the temperature that provide coking chamber 61 pyrolysis of coal required are provided;
(3) so, when passing through quirk through the waste gas after tonifying Qi burning, the high temperature combustible exhaust gas of the secondary internal-quirk 6373 of hypomere gangs up hole 6304 around in main internal-quirk 636, mix in main quirk 636 and rise with the waste gas after the high-temperature combustible gas body in main internal-quirk 636 and burning, along with the waste gas after mixed high-temperature combustible gas body and burning can be to providing heat and externally acting to the pyrolysis of coal in coking chamber 61 by ringwall in coking chamber 612 in uphill process, temperature can reduce gradually;
(4) so need to again enter short covering gas by secondary air compensating pipe 6322 in the middle and upper part of main internal-quirk 636, make the waste gas further burning again after mixed high-temperature combustible gas body and burning, this provides required heat and temperature not only to coking chamber 61 pyrolysis of coal, and can make again high-temperature combustible gas body fully burn, improve high-temperature combustible gas work by combustion efficiency;
(5), in addition, owing to having buffer zone 6381 in the middle of main internal-quirk 636 and the secondary internal-quirk 6375 of epimere, ringwall 634 tops in center are provided with perforation buffer zone 6381 and enter hole 6301 with the waste gas of main internal-quirk 636 and the secondary internal-quirk 6375 of epimere, on the quirk partition wall 635 between main internal-quirk 636 and the secondary internal-quirk 6375 of epimere, be provided with waste gas and gang up hole 6303, between the secondary internal-quirk 6375 of each main internal-quirk 636 and epimere, completely mutually connect, waste gas after the burning of tonifying Qi for the second time can be mixed completely mutually, between the secondary internal-quirk 6375 of the main internal-quirk 636 in place and epimere, reaching samming all presses, balanced heat and temperature is provided can to the pyrolysis of coal on whole coking chamber 61 tops,
(6), enter the exhaust air chamber 391 on body of heater 91 tops by the hot waste gas exhaust channel 6306 at main internal-quirk 636 and the secondary internal-quirk of epimere 6375 tops finally by the waste gas after the burning of mistake secondary air compensating;
(7), meanwhile, in order to make up the quantity not sufficient of the combustible gas in high-temperature combustible gas body, be not enough to provide the required heat of coking chamber 61 pyrolysis of coal and the defect of temperature, and can making full use of the raw gas producing in pyrolysis of coal process, give the 3rd combustion heater 68, the 3rd combustion chamber 681 of the 4th combustion heater 69 and the 4th combustion chamber 691 provide the purified gas burning of raw gas after reclaiming clean, in the secondary internal-quirk 637 in stage casing, add heat, enough heat and temperature are provided not only to coking chamber 61 pyrolysis of coal, improve again the utilization ratio of raw gas simultaneously, reduce and discharge in atmosphere, avoid atmospheric pollution, protect environment.
The burnt upgrading of second section
Because coal carries out the coke forming after pyrolysis in coking chamber, there is the inequality of being heated, the situation that coke briquette grain size is irregular, preferably provide certain temperature and time to coke, make fully to contact between coke, mutually carry out heat transmission, this just needs burnt modifying apparatus 610.
As shown in Figure 22, Figure 21, Figure 19, Figure 25, burnt modifying apparatus 610, be arranged in body of heater and be positioned on quirk bow 65, burnt modifying apparatus 610 comprises that burnt upgrading chamber 6100, main internal-quirk 636 bottoms, the secondary internal-quirk 6373 of hypomere are formed at the bottom of coking chamber 6, center ringwall 634 surrounds the bottom of the high temperature combustible exhaust gas admission passage 6383 of centre channel 638, and ringwall 634 bottoms in center are provided with perforation high temperature combustible exhaust gas admission passage 6383 and enter hole 639 with the combustible exhaust gas of main internal-quirk 636, the secondary internal-quirk 6373 of hypomere.
In addition, as shown in figure 11: body of heater 91 exterior walls are provided with burnt upgrading temperature monitoring hole 6101, in 6101 holes, burnt upgrading temperature monitoring hole, be provided with a burnt upgrading thermometer 6012.
As shown in figure 24: industry control center 90 is electrically connected with burnt upgrading thermometer 6012, and the burnt upgrading temperature signal of the upgrading thermometer 6012 of automatically focusing is monitored.
The method that this burnt modifying apparatus carries out upgrading is: outside is incubated by the body of heater exterior wall of heat insulating refractory material, inside enters hole 639 by high temperature combustible exhaust gas from combustible exhaust gas and enters main internal-quirk 636 bottoms, in the secondary internal-quirk 6373 of hypomere, utilize the waste heat of high temperature combustible exhaust gas itself that insulation institute's heat requirement and temperature are provided, the high temperature combustible exhaust gas temperature particularly just having entered is just applicable to burnt upgrading between 1000 ℃～1100 ℃, make coke retain certain hour in burnt upgrading chamber, fully contact between coke briquette grain, carry out each other heat transmission, reach evenly object of coke button size.
Section three, quirk bow
As shown in Figure 21, Figure 20, because quirk partition wall 635, the center ringwall 634 of ringwall 612 and interior burning heater 67 are all arranged in furnace chamber in coking chamber, need quirk bow 65 for it provides support, the laying of various pipelines is provided to again interior burning heater 67 simultaneously.
As Figure 21, shown in Figure 20, quirk bow 65 is arranged on coking chamber 61, interior burning heater 67, in the furnace chamber of burnt modifying apparatus 610 belows, mainly comprise the bar bow 651 of some, Huo Gong center ringwall 652, ringwall 652 middle parts in Huo Gong center form high temperature combustible exhaust gas passage 653, bar bends 651 one end and is fixed on Huo Gong center ringwall 652, the other end is fixed on body of heater 91, bar bow 651 is the radial layout of scattering in interval at a certain angle around ringwall 652 centers, Huo Gong center, fire bow 651 in this example is 12 bows, the master of quantity and interior burning heater 67, secondary internal- quirk 636, 637 sums are consistent.
As Figure 21, shown in Figure 20, article one, in the body of wall of fire bow 651, the 3rd coal gas is set and enters the extension passage 6861 in arm 682 and the 3rd accumulation of heat chamber 686, the blowdown pipe 6321 arranging in the body of wall of tight another adjacent fire bow 651, secondary air compensating pipe 6322, provide convenience to the pipeline laying of interior burning heater 67, article 6, in the body of wall of fire bow 651, be set up in parallel respectively 6 article of the 3rd coal gas and enter the extension passage 6861 in arm 682 and the 3rd accumulation of heat chamber 686, 6 blowdown pipes 6321 that are set up in parallel respectively in the body of wall of another 6 fire bows 651, secondary air compensating pipe 6322, make the various conduit arrangements of interior burning heater 67 orderly, be unlikely to interfere.
Section four, dry coke quenching
Coke temperature after upgrading is higher, generally all at 1000 ℃～1100 ℃, need to carry out cooling could convenience to high temperature coke and carries and store, and need to have the dry device 7 that puts out.
As shown in Figure 22, Figure 23, the dry device 7 that puts out is arranged on quirk and bends 65 belows, comprises high temperature coke quencher 71, low temperature coke quencher 72, quenching bridge bow 73, quenching exhaust gas fan 75; High temperature coke quencher 71 is arranged on the below of quirk bow 65, and the top of high temperature coke quencher 71 communicates with high temperature combustible exhaust gas passage 653; Quenching bridge bow 73 is arranged between high temperature coke quencher 71 and low temperature coke quencher 72, and quenching bridge bow 73 comprises bridge bow 731, wind assembling set 74, the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., the dry pipe 77 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc.; 6 Tiao Qiaogongyi high temperature coke quencher 71 and the 72Zhou of low temperature coke quencher center are partitioned at an angle spoke shape and arrange in the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., bridge bends 731 middle parts and forms wind assembling set 74, wind assembling set 74 be one straight through up big and down small inversed taper platform shape chamber, the top of wind assembling set 74 is provided with semisphere blast cap 78, and the lower openings 79 of wind assembling set 74 is towards low temperature coke quencher 72; The dry pipe 77 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. is arranged in bridge bow 731, and wind assembling set 74 is led in dry pipe 77 one end that relieve dizziness, high fever, infantile convulsions, epilepsy, etc., and the other end leads to the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., and the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. is connected by blast pipe 761 and quenching exhaust gas fan 75; Bottom opening 721 places of low temperature coke quencher 72 are provided with the valve 70 that discharges of the coke.
As shown in figure 22, be provided with the quenching temperature monitoring hole 711 of leading to high temperature coke quencher 71 on the exterior wall 91 of body of heater, quenching temperature monitoring hole is provided with quenching thermometer 712 in hole.
As shown in figure 24, quenching thermometer 712, quenching exhaust gas fan 75 and the valve 70 that discharges of the coke are electrically connected with industry control center 90, industry control center 90 is controlled automatically to quenching exhaust gas fan 75 and the valve 70 that discharges of the coke, and by quenching thermometer 712, quenching temperature is monitored.Quenching thermometer 712, quenching exhaust gas fan 75 and the valve 70 that discharges of the coke are electrically connected with industry control center 90 by the dry Setup Controller 907 that puts out, and certainly from electric control theory, in this example, the dry Setup Controller 907 that puts out does not form the restriction to this routine protection domain.
The dry method of utilizing low-temperature burning waste gas to carry out dry coke quenching of putting out device 7 of this example is:.
(1) waste gas after gas-fired in the 3rd combustion heater 68 of the first burning heater 62, the first burning heater 60 and the interior burning heater 67 of outer gas-operated thermal bath facility 64, the 4th combustion heater 69 is introduced to quenching exhaust gas fan 75, because the waste gas after gas-fired naturally becomes the relatively low low temperature waste gas of temperature respectively after heat storage heat absorption;
(2) utilize quenching exhaust gas fan 75 that low temperature waste gas is passed through to blast pipe 761 successively, the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., the dry pipe 77 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. blasts in wind assembling set Room 74, low temperature waste gas converges in wind assembling set Room 74, because wind assembling set 74 adopts unique structure, the blast cap 78 at top is semisphere, middle part chamber is inversed taper platform shape structure, so low temperature waste gas can be from lower openings 79 blowout and going out, be blown in low temperature coke quencher 72, upwards seal in again high temperature coke quencher 71, high temperature coke quencher 71 is neutralized to the coke falling to low temperature coke quencher 72 from high temperature coke quencher 71 lowers the temperature, this example adopts air-cooled form STRENGTH ON COKE to lower the temperature, therefore be referred to as dry putting out,
(3) in addition, this example is dry to be put out device 7 and also can produce a certain amount of high-temperature combustible gas body dry in putting out process, because, in one, low temperature waste gas, contain the high temperature coke that a small amount of moisture content runs into after burnt upgrading chemical reaction can occur, produce some inflammable gass; Also there is the not clean-burning inflammable gas of part in low temperature waste gas itself two; Three, also residual a part of inflammable gas of the high temperature coke after burnt upgrading itself, these inflammable gass upwards enter the high temperature combustible exhaust gas passage 653 at ringwall 652 middle parts, Huo Gong center, thereby source of the gas are provided to the major and minor quirk 636,637 of the interior burning heater 67 of coal heat decomposition stove.
The low temperature waste gas of lifting in this example refers to the waste gas that the purified gas after the raw gas reclaiming clean producing in pyrolysis of coal process produces after the combustion heater burning in outer gas-operated thermal bath facility and the interior burning heater of coal heat decomposition stove, this waste gas becomes cryogenic gas after the heat storage absorbing and cooling temperature in accumulation of heat chamber, trunk puts out device and is also advantageous in that and utilizes the incombustibility of combustion exhaust own to replace existing use inert nitrogen to carry out dry putting out, equipment is simple, with low cost, remarkable in economical benefits.Compared with traditional wet quenching, more can there is not a large amount of water-gas because large water gaging runs into high temperature coke and to airborne release, atmospheric pollution is little in this example, water saving, can make full use of the raw gas producing in pyrolysis of coal process again simultaneously.
Section five, continuous coking apapratus
Comprehensively above-mentioned, a large advantage of this coal heat decomposition stove is energy Continuous coking, replaces traditional coking at intermittence or native nest coking, compares traditional coal-coking process, has incomparable advantage.
As shown in figure 25, continuous coking apapratus comprises pyrolysis of coal carbonizing apparatus 6, burnt modifying apparatus 610, dry coke quenching auxiliary 7; Pyrolysis of coal carbonizing apparatus 6, burnt modifying apparatus 610, dry coke quenching auxiliary 7 are integrally formed from top to bottom on body of heater 91.Pyrolysis of coal carbonizing apparatus 6, burnt modifying apparatus 610, dry coke quenching auxiliary 7 concrete structures are as described in above chapters and sections.
The Continuous coking method of this routine continuous coking apapratus is:
(1), enter heated in the coking chamber that stove coal enters pyrolysis of coal carbonizing apparatus 6 pyrolysis to occur;
(2), the stove coal that enters that completes of pyrolysis directly drops into burnt modifying apparatus 610 and carries out burnt upgrading, concrete method for modifying is shown in the introduction in above the 4th part second chapter;
(3), use low temperature waste gas after the burning coke directly dropping in dry coke quenching auxiliary 7 after upgrading is completed to carry out the dry cooling of putting out, produce high-temperature combustible gas body simultaneously, the concrete dry method of putting out is shown in the introduction in above the 4th part chapter 4 joint;
(4), the bottom opening 721 of the last low temperature coke quencher 72 from dry coke quenching auxiliary 7 is discharged.
The raw gas that wherein in (1) step, heating means produce pyrolysis of coal in pyrolysis of coal carbonizing apparatus 6 is derived, utilize the purified gas of raw gas after reclaiming clean to carry again burning to provide required heat and temperature to pyrolysis of coal, comprise the purified gas burning heating method in outer combustion gas heating means and interior burning heating method, described outer combustion gas heating means and interior burning heating method are specifically shown in the introduction in the 4th part the first chapters and sections.
Wherein the low temperature waste gas in (3) step refers to that the combustion exhaust producing after purified gas burning in (1) is through inhaling after right cooling, the coke being introduced in dry coke quenching auxiliary 7 carries out the dry cooling of putting out, and dryly in dry coke quenching auxiliary 7 put out high-temperature combustible gas body that cooling produces and be introduced into and in burnt modifying apparatus 610, carry out the burnt upgrading of (2) step, the high-temperature combustible gas body after upgrading is once more introduced in the quenching waste gas heater 63 of pyrolysis of coal carbonizing apparatus 6 and is burnt and provided required heat and temperature to the pyrolysis of coal in (1) step by tonifying Qi.
The feature of this routine Continuous coking is, by pyrolysis of coal charing, upgrading, the dry process integration that puts out in the hot body of heater of same coal, make charing, upgrading, dry putting out be able to continuous realization, overcome the discontinuous production efficiency of existing intermittent type coking technology technique low, how required the assorted plant area of equipment be large, the problem that human cost is high.
The comprehensive cyclic utilization of Part V, pyrolysis of coal gas
First segment raw gas take-up gear
The raw gas producing in pyrolysis of coal process is containing a lot of useful compositions, as H
2s, HCH etc. sour gas, NH
3the organism such as alkaline gas, tar class, benzene class, naphthalene class, washing oil class, need to derive to utilize raw gas.
As Figure 26, raw gas take-up gear 8, comprises raw gas concentration chamber 81, interior derivation passage 82, and outer derivation passage 83, derivation main channel 84, derive circuit 85; It is integrally formed that raw gas concentration chamber 81 is arranged on top and the coking chamber 61 of coking chamber 61; As shown in Figure 17, Figure 26, interior derivation passage 82 arranges in quirk partition wall 635, and interior derivation feeder connection 821 leads to coking chamber 61 through interior ringwall 612 middle parts, the raw gas concentration chamber 81 that interior derivation channel outlet 822 is led to coking chamber top through interior ringwall 612; As shown in Figure 17, Figure 26, Figure 11, outer derivation passage 83 arranges in the exterior wall of body of heater 91, lower outside derivation feeder connection 831, upper outside derivation feeder connection 834 lead to coking chamber 61 through outer ring wall 613 middle parts, the raw gas concentration chamber 81 that outer derivation channel outlet 832 is led to coking chamber top through outer ring wall 613.
As shown in figure 26, deriving main channel 84 is arranged in the exterior wall of body of heater 91 of coal heat decomposition stove, derivation main channel entrance 841 communicates with raw gas concentration chamber 81 and extends up in the exterior wall top derivation circuit 85 that body of heater 91 is set again, and derives circuit 85 a raw gas export mouth 851 is set.
As Figure 26, Figure 17, shown in Figure 11, in this example because coking chamber 61 annular chamber, so raw gas concentration chamber 81 is corresponding annular chamber also, article 6, in, deriving passage 82 is separately positioned in 6 road quirk partition walls 635, lead to coking chamber 61 through interior ringwall 612, article 6, outer derive passage 83 be separately positioned in the middle of body of heater 91 exterior walls through and outer quirk partition wall 625 and outer ring wall 613 lead to coking chamber 61, wherein, because the circumference of coking chamber 61, so at the interior ringwall 612 of coking chamber 61, on outer ring wall 613, be respectively arranged with multiple interior derivation feeder connections 821 and lower outside derivation feeder connection 831, upper outside derivation feeder connection 834, again because the height of coking chamber 61 is high, interior derivation feeder connection 821 and lower outside derivation feeder connection 831, the setting of staggering up and down of upper outside derivation feeder connection 834, as Figure 26, in shown in Figure 11, derive feeder connection 821 higher than lower outside derivation feeder connection 831, but lower than upper outside derivation feeder connection 834 places, this example adopts this structure better to derive the raw gas that in coking chamber 91, different sections produce, also be provided with 4 the larger raw gas of sectional area main channels 84 around raw gas concentration chamber 81 in addition and lead to derivation circuit 85, the object arranging like this can conveniently derive a large amount of raw gas in raw gas concentration chamber 81.
As shown in figure 26, on the exterior wall of body of heater 91, be provided with the raw gas temperature monitoring holes 811 that leads to raw gas concentration chamber 81, in raw gas temperature monitoring holes 811, place raw gas temperature table 812.
As shown in figure 24, raw gas temperature table 812 is electrically connected with industry control center 90, and temperature in raw gas concentration chamber 81 is monitored by raw gas temperature table 812 in industry control center 90.
This routine feature by the raw gas that different sections produce in coking chamber 61 respectively from interior derivation feeder connection 821 and lower outside derivation feeder connection 831, upper outside derivation feeder connection 834 enter interior derivation passage 82 and derivation passage collect again in raw gas concentration chamber 81 in going out 83, certainly a large amount of raw gas in coking chamber 61 are directly to rise up in raw gas concentration chamber 81, raw gas a large amount of in raw gas concentration chamber 81 enter derivation circuit 85 by deriving main channel 84, finally discharge from raw gas export mouth 851.
Second section raw gas condensing works
Higher from raw gas export mouth discharge raw gas temperature, changing antenatal conveying for the ease of high temperature raw gas, need to use raw gas condensation dress and carry out cooling to high temperature raw gas.
Section three, the reclaiming clean of raw gas
Raw gas after ammoniacal liquor sprays is transported to gas-liquid separation device together with the mixed solution of coal tar and ammoniacal liquor through effuser and carries out gas-liquid separation, in mixed solution after gas-liquid separation, contain multiple useful organic component and refine other auxiliary product for industry as carbolic oil, naphtalene oil, washing oil, carbolineum etc., coal gas after gas-liquid separation is after air cooling cooling, after dry back receiving apparatus purifies recovery, become purified gas, purified gas can store for burning.
First segment raw gas purifies the purified gas burning after reclaiming
Raw gas is through purifying after recovery, part purified gas be transported to this example above introduce enter combustion heater in the outer gas-operated thermal bath facility described in stove pyrolysis of coal charing part and the combustion heater in interior burning heater burns, provide thermal source to pyrolysis of coal.
Dry the putting out of waste gas after the burning of second section purified gas
Purified gas not burning cmpletely in the combustion heater in gas-operated thermal bath facility and the combustion heater in interior burning heater outside, utilize not cmpletely combustion exhaust high temperature coke is carried out to the dry cooling of putting out, generation water-gas can react when the moisture content in combustion exhaust does not contact with high temperature coke cmpletely, take away again remaining volatile combustible gases after high temperature coke upgrading simultaneously, the final high-temp waste gas that contains inflammable gas composition that forms, specifically see the introduction of above dry coke quenching chapters and sections, repeat no more here.
Section three, the burnt upgrading of high temperature combustible exhaust gas after dry putting out
High temperature combustible exhaust gas temperature after dry putting out can reach 1000 ℃～1100 ℃, and burnt upgrading just in time need to be incubated upgrading at this temperature section, specifically how to be incubated upgrading, specifically sees and the introduction of above dry coke quenching chapters and sections repeats no more here.
Section four, the tonifying Qi burning again of the high temperature combustible exhaust gas after dry putting out.
High temperature combustible exhaust gas is externally acting in STRENGTH ON COKE upgrading process, temperature can reduce, can drop to 900 ℃～1000 ℃, and pyrolysis of coal charing is temperature required higher in coking chamber, on average all at 1400 ℃～1500 ℃, carry out combustion heating so fill into air for the first time to high temperature combustible exhaust gas, because coking chamber height is higher, and combustiblecomponents exists a certain amount of in high temperature combustible exhaust gas, so need to increase and have the 3rd combustion heater at interior burning heater middle part, the 4th combustion heater is to supplement the required heat of pyrolysis of coal, finally fill into for the second time again air on interior burning heater top and carry out again abundant combustion heating by high temperature combustible exhaust gas, both reached to pyrolysis of coal and provided outside thermal source acting, can allow again high temperature combustible exhaust gas fully burn, reduce the pollution to atmospheric environment, specifically see above enter narration in stove pyrolysis of coal charing, here repeat no more.
Section five, the hot waste gas after tonifying Qi burning enters the preheating of stove coal
Waste gas after the quenching waste gas heater burning of interior burning heater, is discharged in exhaust air chamber, then carries out preheating by coal primary heater unit to entering stove coal.
Section six, afterburning air heating
Waste gas after the preheating of coal preheater is transported to tubular heat exchanger and heats entering air in quenching waste gas heater, do not need extra thermal source to air heating, do not need to increase additional cost, both played the waste heat of the hot waste gas after the preheating of coal preheater had further been utilized, can give in quenching waste gas heater and fill into warm air again, high temperature combustible exhaust gas in quenching waste gas heater is fully burnt.
Section seven, enter stove coal dewatering
Hot waste gas is through to after afterburning air heating, and temperature decreases, and generally can drop to below 800 ℃, and for the relatively high hot waste gas of such temperature, a part can be used for to entering stove coal dewatering.
Section eight, saturated active coke regeneration heating
Hot waste gas is through to after afterburning air heating, and temperature decreases, and generally can drop to below 800 ℃, and for the relatively high hot waste gas of such temperature, another part can be used for to saturated active coke regeneration heating.
Part VI: pyrolysis of coal automatic control device
Comprehensively above-mentioned, pyrolysis of coal automatic control device comprises that industry control center and above introduction connect thermometer and motor with industry control center.
Part VII: thermal cycling continuous and automatic coal heat decomposition stove
The contents such as stove coal enters coal, preheating, coal, cooling, charing, burnt upgrading, dryly puts out, raw gas derivation that enter of comprehensive above-mentioned concrete introduction draw a kind of thermal cycling continuous and automatic coal heat decomposition stove and pyrolysis of coal method.
As shown in figure 25, a kind of thermal cycling continuous and automatic coal heat decomposition stove 9, comprise body of heater 91, enter device for coal 2, primary heater unit 39, enter stove coal surge bunker 3, enter stove coal refrigerating unit 5, pyrolysis of coal carbonizing apparatus 6, burnt modifying apparatus 610, dryly put out dry device 7, the raw gas take-up gear 8 of putting out, wherein, pyrolysis of coal carbonizing apparatus 6 mainly comprises that coking chamber 61, outer gas-operated thermal bath facility 64, interior burning heater 67, quirk bow 65 form.
The concrete structure that described enter device for coal 2, primary heater unit 39, enter stove coal surge bunker 3, enters stove coal refrigerating unit 5 is shown in Part III introduction, the concrete structure of described pyrolysis of coal carbonizing apparatus 6 and coking chamber 61 thereof, outer gas-operated thermal bath facility 64, interior burning heater 67, quirk bow 65 is shown in Part IV introduction, and the concrete structure of raw gas take-up gear 8 is shown in Part V chapter 1 first segment content.
A kind of thermal cycling continuous and automatic pyrolysis of coal method, step is:
1, open stove cuttings conveyer 21 and a certain amount ofly after dehydration, enter stove coal to entering to input in stove coal bunker 22;
2, open blanking control valve 24, enter entering stove coal through coal dust distribution chamber 26 and entering stove coal bunker tremie pipe 29 in stove coal bunker 22 and enter into preheater 393 preheatings, enter stove coal and after preheating, fall into coal pocket 31, when detecting the coal in coal pocket, level gage on coal bunker 32 fills it up with, close blanking control valve 24, stop to coal pocket 31 coals, enter stove coal and first store away in advance at coal pocket 31;
3,, when needs are in coking chamber 61 when coal, open coal pocket baiting valve 36 to 61 adding and inject stove coal in coking chamber;
4, in the time that needs stop coal to coking chamber 61, close coal pocket baiting valve 36, stop adding stove coal in coking chamber 61;
5, when detecting, level gage under coal bunker 33 enters stove coal when not enough in coal pocket 31, open blanking control valve 24, give coal in coal pocket 31, fill it up with when level gage on coal bunker 32 detects the coal in coal pocket 31, close blanking control valve 24, stop to coal pocket 31 coals;
6, enter heated in the coking chamber 61 that stove coal enters pyrolysis of coal carbonizing apparatus 6 pyrolysis to occur;
What 7, pyrolysis completed enter, and stove coal directly drops into burnt modifying apparatus 610 carries out burnt upgrading;
8, use low temperature waste gas after the burning coke directly dropping in dry coke quenching auxiliary 7 after upgrading is completed to carry out the dry cooling of putting out, produce high-temperature combustible gas body simultaneously;
9, the bottom opening 721 of the last low temperature coke quencher 72 from dry coke quenching auxiliary 7 is discharged.
The raw gas that wherein in (6) step, heating means produce pyrolysis of coal in pyrolysis of coal carbonizing apparatus 6 is derived, utilize the purified gas of raw gas after reclaiming clean to carry again burning to provide required heat and temperature to pyrolysis of coal, comprise the purified gas burning heating method in outer combustion gas heating means and interior burning heating method, described outer combustion gas heating means and interior burning heating method are specifically shown in the introduction in the 4th part the first chapters and sections.
Claims (2)
1. a thermal cycling continuous and automatic pyrolysis of coal method, it is characterized in that: the major equipment that present method relates to comprises body of heater, enters device for coal, primary heater unit, enter stove coal surge bunker, enter stove coal refrigerating unit, pyrolysis of coal carbonizing apparatus, burnt modifying apparatus, dry coke quenching auxiliary, raw gas take-up gear, wherein, pyrolysis of coal carbonizing apparatus mainly comprises that coking chamber, outer gas-operated thermal bath facility, interior burning heater, quirk bow form, and performing step is:
(1), open stove cuttings conveyer and a certain amount ofly after dehydration, enter stove coal to entering to input in stove coal bunker;
(2), open blanking control valve, enter entering stove coal through coal dust distribution chamber and entering stove coal bunker tremie pipe in stove coal bunker and enter into preheater preheating, enter stove coal and after preheating, fall into coal pocket, when detecting the coal in coal pocket, level gage on coal bunker fills it up with, close blanking control valve, stop to coal pocket coal, enter stove coal and first store away in advance at coal pocket;
(3), when needs are in coking chamber when coal, open coal pocket baiting valve and inject stove coal to adding in coking chamber;
(4), in the time that needs stop coal to coking chamber, close coal pocket baiting valve, stop adding stove coal in coking chamber;
(5), in coal pocket, enter stove coal when not enough when level gage under coal bunker detects, open blanking control valve, give coal in coal pocket, fill it up with when level gage on coal bunker detects the coal in coal pocket, close blanking control valve, stop to coal pocket coal;
(6), enter heated in the coking chamber that stove coal enters pyrolysis of coal carbonizing apparatus pyrolysis to occur, the raw gas that heating means produce pyrolysis of coal in pyrolysis of coal carbonizing apparatus is derived, utilize the purified gas of raw gas after reclaiming clean to carry again burning to provide required heat and temperature to pyrolysis of coal, comprise the purified gas burning heating method in outer combustion gas heating means and interior burning heating method, described interior burning heating method, the equipment that present method is used mainly comprises one group of above main internal-quirk, secondary internal-quirk arranged side by side; Described secondary internal-quirk is divided into the secondary internal-quirk of epimere, the secondary internal-quirk in stage casing, the secondary internal-quirk of hypomere, the secondary internal-quirk of described epimere and the secondary internal-quirk of hypomere communicate with main internal-quirk respectively, the secondary internal-quirk in described stage casing forms the independent gas combustion chamber of relative closure, the secondary internal-quirk in a upper stage casing connects into relevant one group to the secondary internal-quirk in next stage casing of next-door neighbour, and present method performing step is:
(B1) the high temperature combustible exhaust gas, dry coke quenching being produced is introduced in main internal-quirk and the secondary internal-quirk of hypomere;
(B2), at this moment give the air that fills in the secondary internal-quirk of main internal-quirk and hypomere, thereby make high temperature combustible exhaust gas obtain airborne oxygen burning;
(B3) waste gas, after the high temperature combustible exhaust gas of the secondary internal-quirk of hypomere burns through a tonifying Qi, around in main internal-quirk, mixes in main internal-quirk and rises with the waste gas after the high-temperature combustible gas body in main internal-quirk and burning;
(B4), the gas that again covers in the middle and upper part of main internal-quirk, make mixed high-temperature combustible gas body and burning after waste gas more further burning;
(B5), the waste gas after secondary air compensating burning mixes completely mutually between each main internal-quirk and the secondary internal-quirk of epimere;
(B6), the waste gas after last secondary air compensating burning is discharged from main internal-quirk and the secondary internal-quirk of epimere top;
(B7), meanwhile, alternately add heat to filling into raw gas in the secondary internal-quirk in adjacent two stage casings through the purified gas purifying after reclaiming respectively;
(7) what, pyrolysis completed enter, and stove coal directly drops into burnt modifying apparatus carries out burnt upgrading, high temperature combustible exhaust gas enters hole from the combustible exhaust gas of burnt modifying apparatus and enters main internal-quirk bottom, the secondary internal-quirk of hypomere, utilize the waste heat of high temperature combustible exhaust gas itself that insulation institute heat requirement is provided, make coke retain certain hour in the burnt upgrading chamber of burnt modifying apparatus, between coke briquette grain, fully contact, carry out each other heat transmission;
(8), use low temperature waste gas after the burning coke directly dropping in dry coke quenching auxiliary (7) after upgrading is completed to carry out the dry cooling of putting out, described dry coke quenching auxiliary is arranged on quirk bow below, comprises high temperature coke quencher, low temperature coke quencher, quenching bridge bow, quenching exhaust gas fan; High temperature coke quencher is arranged on the below of quirk bow, and the top of high temperature coke quencher communicates with the high temperature combustible exhaust gas passage of quirk bow; Quenching bridge bow is arranged between high temperature coke quencher and low temperature coke quencher, and quenching bridge bow comprises bridge bow, wind assembling set, the dry circuit that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., the dry pipe that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., and the method for concrete dry coke quenching is:
(C1) waste gas after gas-fired in the 3rd combustion heater of the first combustion heater of outer gas-operated thermal bath facility, the second combustion heater and interior burning heater, the 4th combustion heater is introduced to quenching exhaust gas fan, because the waste gas after gas-fired naturally becomes the relatively low low temperature waste gas of temperature respectively after heat storage heat absorption;
(C2) utilize quenching exhaust gas fan that low temperature waste gas is blasted in wind assembling set chamber by blast pipe, the dry circuit that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., the dry pipe that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. successively, low temperature waste gas converges in wind assembling set chamber, the blast cap at wind assembling set top is semisphere, middle part chamber is inversed taper platform shape structure, low temperature waste gas can be from lower openings blowout and going out, be blown in low temperature coke quencher, more upwards seal in high temperature coke quencher, high temperature coke quencher is neutralized to the coke falling to low temperature coke quencher from high temperature coke quencher and lower the temperature;
(C3) in addition, also can produce a certain amount of high-temperature combustible gas body dry in putting out process, because, in one, low temperature waste gas, contain the high temperature coke that a small amount of moisture content runs into after burnt upgrading chemical reaction can occur, produce some inflammable gass; Also there is the not clean-burning inflammable gas of part in low temperature waste gas itself two; Three, also residual a part of inflammable gas of the high temperature coke after burnt upgrading itself, these inflammable gass upwards enter the high temperature combustible exhaust gas passage at ringwall middle part, quirk Gong Huogong center, thereby source of the gas are provided to the major and minor internal-quirk of the interior burning heater of coal heat decomposition stove;
(9), the bottom opening of the last low temperature coke quencher from dry coke quenching auxiliary is discharged.
2. a kind of thermal cycling continuous and automatic pyrolysis of coal method according to claim 1, it is characterized in that: the described outer combustion gas heating means of heating means in (6) step, the equipment that present method is used comprises one group of above identical the first combustion heater of structure, the second combustion heater and gas reversing system, and present method performing step is:
(A1), gas reversing system is sent into air, purified gas burning to the first combustion chamber of the first combustion heater, the heat heating that air is discharged by the first heat storage becomes the gas-fired in combustion-supporting the first combustion chamber of warm air, the hot waste gas after sucking-off burning from the second combustion chamber of the second combustion heater simultaneously, the second heat storage absorbing and cooling temperature of hot waste gas in the regenerative heat exchanger of the second combustion heater becomes the relatively low low temperature waste gas of temperature and discharges;
(A2), in like manner, gas reversing system is sent into air, purified gas burning to the second combustion chamber of the second combustion heater, and the heat heating that air is discharged by the second heat storage becomes the gas-fired in combustion-supporting the second combustion chamber of warm air; The hot waste gas after sucking-off burning from the first combustion chamber of the first combustion heater simultaneously, the first heat storage absorbing and cooling temperature of hot waste gas in the regenerative heat exchanger of the first combustion heater becomes the relatively low low temperature waste gas of temperature and discharges;
(A3), (A1), (A2) step alternate cycles are carried out.
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| CN104807817B (en) * | 2014-01-24 | 2018-04-27 | 宝山钢铁股份有限公司 | The apparatus and method for detecting coal Coking Process characteristic in coke oven |
| WO2015158170A1 (en) * | 2014-04-14 | 2015-10-22 | 哈尔滨工业大学 | In-situ decoupling based gas/solid reaction analyzing device and analyzing method |
| CN110813006A (en) * | 2019-12-02 | 2020-02-21 | 中冶焦耐(大连)工程技术有限公司 | Waste gas waste heat recovery and purification process of coke oven gas heating system |
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