CN105056918A - Energy-saving environment-friendly type active coke regeneration system and method thereof - Google Patents
Energy-saving environment-friendly type active coke regeneration system and method thereof Download PDFInfo
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- CN105056918A CN105056918A CN201510446811.9A CN201510446811A CN105056918A CN 105056918 A CN105056918 A CN 105056918A CN 201510446811 A CN201510446811 A CN 201510446811A CN 105056918 A CN105056918 A CN 105056918A
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Abstract
The invention discloses an energy-saving environment-friendly type active coke regeneration system and method thereof, and is designed for providing the energy-saving environment-friendly type active coke regeneration system and the method thereof. The energy-saving environment-friendly type active coke regeneration system comprises an analytic tower, a saturation active coke transport apparatus for transporting the saturation active coke to the analytic tower; the analytic tower is arranged in an ironmaking blast furnace area, wherein the analytic tower and a blast furnace hot air combustion-supporting flue gas exhaust opening are connected through a hot air conveying pipeline; and the analytic tower takes the flue gas output by the blast furnace hot air combustion-supporting flue gas exhaust opening as parsing hot gas.
Description
Technical field
The present invention relates to a kind of energy saving and environment friendly active coke regeneration system and method.
Background technology
Along with the raising of national environmental standard, sintering flue gas desulfurization adopts dry (half-dried) method sulfur removal technology to have better superiority compared with wet desulphurization at water and granular material discharged grade on environmental protection index, and wherein the sulfur removal technology of maturation has circulating fluid bed semi-drying method sulfur removal technology (CFB) and rotary spraying technique (SDA) semi-dry desulfurizing process.And the synchronous dry process of desulphurization denitration only has activated coke (carbon) absorption method at present.
The common drawback of circulating fluid bed semi-drying method sulfur removal technology (CFB) and rotary spraying and drying semi-dry desulphurization (SDA) is substantially without denitration efficiency, there is risk not up to standard when being applied in high concentration (former flue gas sulfur-bearing is greater than 2500mg/m3) flue gas, operation power charge is higher.Fluid-bed sweetening tower runs existence and to collapse a risk.Rotating spraying desulfurizing tower top atomizer is nucleus equipment, needs import, and because rotary speed reaches 15000rpm, easily wearing and tearing need periodic maintenance, and shutdown system is exchange device more.
Domestic and international steel enterprise sintering flue gas adopts activated coke (carbon) desulfurizing and denitrifying process at present, all absorption carbon and regenerator is arranged in set of system.The saturated active coke adsorbed adopts embedded scraper transporter to deliver to Analytic Tower, and desorb adopts a jacket heating system, adds the coke-stove gas that heat smoke adopts pipeline to attract.Desorption apparatus is that a set of sintering flue gas desulfurization denitrating system is arranged specially, and desorption ability is the several times that absorption produces saturated active coke ability, and every day, desorption system only worked several hours, and therefore desorption and regeneration system capability is not in full use.
For the problems referred to above, the invention provides a kind of energy-saving and environmental protection, activated coke twice laid energy saving and environment friendly active coke regeneration system completely.
For achieving the above object, the energy saving and environment friendly active coke regeneration system of the present invention, comprise Analytic Tower, transport the saturated active coke conveying arrangement of saturated active coke to Analytic Tower, described Analytic Tower is arranged on blast furnace region, wherein said Analytic Tower is communicated with by hot blast conveying pipe road with the combustion-supporting flue gas exhaust mouth of blast-furnace hot-air, and described Analytic Tower draws the flue gas that exports from the combustion-supporting flue gas exhaust mouth of described blast-furnace hot-air as parsing hot gas by described hot air duct.
Further, also comprise be arranged on described activated coke resolver exit for filtering out the vibratory sieve of diameter at the activated coke particle of below 0.5cm, be provided with activated coke particle storehouse pump below the sieve aperture of described vibratory sieve, described activated coke particle storehouse pump is connected with pulverized coal injection feed bin by activated coke particulate transportation pipeline.
Further, described activated coke particle storehouse pump and described activated coke transport pipeline are tightly connected, described activated coke transport pipeline is gastight conduit, described activated coke particle is delivered to described pulverized coal injection feed bin by Pneumatic conveyer, and the power gas of described Pneumatic conveyer is the nitrogen of 0.5MPa.
Further, also comprise activated coke storage silo and the activated coke of 0.5cm-1cm on reciprocating sieve is delivered to the embedded scraper transporter of described activated coke storage silo.
Particularly, the content of oxygen detecting device be arranged in described Analytic Tower is also comprised.
Further, described Analytic Tower comprises the reinforced buffering chamber set gradually from top to bottom, heating, cooling regeneration storehouse, discharging buffering chamber, wherein said heating, cooling regeneration storehouse comprises shell, and described enclosure is divided into gas collecting segment from top to bottom successively, bringing-up section, nitrogen Injection Section, cooling section, some oval material pipes are provided with in described shell, charging valve is provided with between the entrance of described ellipse material pipe and described reinforced buffering chamber, discharge valve is provided with between the outlet of described ellipse material pipe and described discharging buffering chamber, each described ellipse material pipe is equipped with waste gas gas outlet, the corresponding gas collecting segment in described waste gas gas outlet, described integrated tower also comprises gas collecting apparatus, nitrogen injection device, described gas collecting apparatus is communicated with described gas collecting segment, described nitrogen injection device and described heating, cooling regeneration storehouse bringing-up section and described ellipse material pipe are communicated with, and described bringing-up section is communicated with hot gas conveying device, and described cooling section is communicated with cold air conveying device, the hot gas Left-wing Federation case that described bringing-up section is communicated with, the right header of hot gas, the cold air Left-wing Federation case that described cooling section is communicated with, the right header of cold air.
Particularly, be provided with the air guide dividing plate that some spacing are arranged in described heating, cooling regeneration storehouse, air guide dividing plate described in the axes normal of described ellipse material pipe, the spacing often between adjacent two air guide dividing plates is equal; Described ellipse expects with oval, pipe expects that the cross section of the central axis upright of pipe is for being ellipticity, and the waste gas gas outlet on each described ellipse material pipe is blinds gas outlet.
Further, described Analytic Tower comprise from top to bottom set gradually reinforced temporary storing bin, activated coke regeneration storehouse, discharging temporary storing bin, wherein said activated coke regeneration storehouse is divided into reinforced straight length from top to bottom successively, heat pipeline section, fill nitrogen excessively expects pipeline section, cooling pipeline section, discharging straight length;
Be provided with plenum chamber outside wherein said reinforced straight length, described reinforced straight length is provided with ventilative orifice plate, and described ventilative orifice plate is provided with the air-vent being communicated with reinforced straight length inside and plenum chamber;
Be respectively equipped with outside described heating pipeline section and add heat smoke air inlet header, add heat smoke and to give vent to anger header, described heating pipeline section and described add to be provided with between heat smoke air inlet header add heat smoke qi-emitting hole plate, described heating pipeline section and described add to be provided with between heat smoke air inlet header add heat smoke gas collection hole plate, described heating tube intersegmental part also adds mistake and is furnished with some buried heating smoke pipes, and two openends of each described buried heating tube respectively expanded joint add heat smoke qi-emitting hole plate in described and add in the hole on heat smoke gas collection hole plate;
The described nitrogen that fills excessively expects that pipeline section is communicated with nitrogen charging device, and described nitrogen charging device is to nitrogen injection in described activated coke regeneration storehouse;
Be respectively equipped with cooling-air air inlet header outside described cooling pipeline section, cooling-air gives vent to anger header, cooling-air gas distribution orifice plate is provided with between described cooling pipeline section and described cooling-air air inlet header, cooling-air gas collection orifice plate is provided with between described cooling pipeline section and described cooling-air air inlet header, described cooling tube intersegmental part also adds mistake and is furnished with some buried cooling-air pipes, and two openends of each described buried cooling-air pipe are distinguished in the hole of expanded joints on described cooling-air gas distribution orifice plate and cooling-air gas collection orifice plate;
Be provided with charging valve between described reinforced straight length and described reinforced temporary storing bin, between described discharging straight length and described discharging temporary storing bin, be provided with discharge valve;
Described activated coke regeneration storehouse is hourglass configuration.
Further, described charging valve, discharge valve is the star-like trapping valve of double-deck multiple row, described double-deck multiple row star-like trapping valve comprises the valve body of some both ends opens arranged successively, the one end open of described valve body is connected with reinforced buffering chamber or discharging buffering chamber, the other end opening of described valve body and described heating, cooling regeneration storehouse is connected, comprising of each described valve body, the connected chamber of lower two opposed post roller accommodating cavities and the post roller accommodating cavity of connection described in two, wherein, 1 post roller is respectively equipped with in post roller accommodating cavity described in two, described accommodating cavity is the arcuate structure suitable with described post roll shape, the gap passed through for material is provided with between described post roller and the sidewall of described accommodating cavity, the sidewall of described connected chamber is provided with the nitrogen air admission hole of the nitrogen outlet being communicated with described nitrogen injection device,
Described double-deck multiple row star-like trapping valve also comprises the transmission device driving described post roller to rotate, and described transmission device comprises the motor, reductor and the chain transfer mechanism that are in transmission connection successively, and described chain transfer mechanism and described star-like post roller are in transmission connection.
For achieving the above object, energy-saving ring type reactive coke regeneration method of the present invention, described method comprises:
Regularly in Analytic Tower, transport saturated active coke.
The flue gas exported by blast-furnace hot-air combustion-supporting flue gas exhaust mouth as Analytic Tower described saturated active coke resolved needed for hot gas.
Filtered out the activated coke particle that diameter is below 0.5cm by burnt for the regeneration activity after being parsed by vibratory sieve, described activated coke particle is used for blast furnace fuel, reclaiming diameter is that the regeneration activity of 0.5cm or more than 0.5cm is burnt.
The energy saving and environment friendly active coke regeneration system of the present invention, one, Analytic Tower is arranged in blast furnace ironmaking region, activated coke is resolved the hot gas used and is drawn certainly in the combustion-supporting gas extraction system flue gas of blast funnace hot blast stove by hot air duct, do not need to arrange heating fuel system in addition, efficiency of energy utilization is high, reduces desorption system operating fuel expense, invests little.Its two, owing to employing the parsing high temperature of blast-furnace hot-air as activated coke, thus avoid combustion heating produce NO
x.Its three, vibratory sieve is set in the exit of Analytic Tower, filters out the activated coke waste material that granularity is less than 0.5cm, transport described activated coke waste material by activated coke conveyance conduit and store to pulverized coal injection feed bin.
Accompanying drawing explanation
Fig. 1 is the structural representation of the energy saving and environment friendly active coke regeneration system of the present invention;
Fig. 2 is the structural representation of the present invention's energy saving and environment friendly active coke regeneration system embodiment 1 Analytic Tower;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is the structural representation of the present invention's energy saving and environment friendly active coke regeneration system embodiment 2 Analytic Tower;
Fig. 5 is the side view of Fig. 4;
Fig. 6 is the structural representation of the star-like trapping valve of double-deck multiple row of the energy saving and environment friendly active coke regeneration system of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
Embodiment 1
As shown in Figure 1, the energy saving and environment friendly active coke regeneration system of the present embodiment, comprise Analytic Tower, transport the saturated active coke conveying arrangement of saturated active coke to Analytic Tower, described Analytic Tower is arranged on blast furnace region, wherein said Analytic Tower is communicated with by hot blast conveying pipe road with the combustion-supporting flue gas exhaust mouth of blast-furnace hot-air, and described Analytic Tower draws the flue gas that exports from the combustion-supporting flue gas exhaust mouth of described blast-furnace hot-air as parsing hot gas by described hot air duct.
The implementation process of the present embodiment is: adsorb saturated activated coke is regularly transported to desorption and regeneration station every day saturated active coke feed bin with vacuum tank car, sends needing the saturated active coke of desorb into Analytic Tower by bucket elevator.Analytic Tower is arranged on blast furnace region, and a 450-550 used DEG C hot blast draws from the combustion-supporting waste gas system pipeline of blast funnace hot blast stove, and do not need to arrange heating fuel system in addition, invest little, efficiency of energy utilization is high, reduces combustion heating simultaneously and produces NO
x.Connect an arm from the combustion-supporting exhaust duct of hot-blast stove, draw and meet activated coke desorb Air Quantity Required, temperature about 500 DEG C, delivers to the top stripping stage of desorption and regeneration tower.Regeneration stripping stage adopts the indirect type of cooling, and hot blast is by the heat exchange pipeline inner and outer saturated active coke indirect heat exchange of desorb heat exchanger, and the heat exchange pipeline of heat exchanger adopts No. 20 seamless steel tube for boiler.Saturated active coke slowly declines in container inside, with high-temperature hot flue gas indirect heat exchange, and the H of absorption in saturated active coke
2sO
4resolve into H
2o and SO
2desorb is overflowed, and is risen to the top of Analytic Tower by activated coke particulate interspaces, is drawn, high concentration SO by special outlet
2gas is drawn by pipeline, receives accessory contact formula and absorbs acid making system utilization.Between desorb heat exchanger 4 and cooling heat exchanger, arrange one section of changeover portion, changeover portion adopts the isolated protection of nitrogen.Activated coke through desorption and regeneration slowly drops to Analytic Tower bottom, bottom Analytic Tower is provided with cooling heat exchanger 6, the activated coke heat exchange after the cooling tube outer wall of cooling heat exchanger 6 and desorption under high temperature, and inwall blasts cooling-air, by the activated coke of desorption state about 450 DEG C, be cooled to less than 150 DEG C.
As shown in Fig. 2 to 3, Analytic Tower described in the present embodiment, comprise the reinforced buffering chamber 22 set gradually from top to bottom, heating, cooling regeneration storehouse 25, discharging buffering chamber 29, wherein said heating, cooling regeneration storehouse comprises shell, described enclosure is divided into gas collecting segment a from top to bottom successively, bringing-up section b, nitrogen Injection Section c, cooling section d, some oval material pipes 24 are provided with in described shell, charging valve 23 is provided with between the entrance of described ellipse material pipe and described reinforced buffering chamber, discharge valve 28 is provided with between the outlet of described ellipse material pipe and described discharging buffering chamber, each described ellipse material pipe is equipped with waste gas gas outlet 215, the corresponding gas collecting segment in described waste gas gas outlet, described integrated tower also comprises gas collecting apparatus 210, nitrogen injection device 27, described gas collecting apparatus is communicated with described waste gas gas outlet, described nitrogen injection device and described heating, cooling regeneration storehouse inner and described ellipse material pipe is communicated with, described bringing-up section is communicated with hot gas conveying device, described cooling section is communicated with cold air conveying device.Also comprise be communicated with described bringing-up section hot gas Left-wing Federation case 212, the right header of hot gas 211 and the cold air Left-wing Federation case 213 be communicated with described cooling section, the right header 214 of cold air.
In the present embodiment, activated coke thermal regeneration and cooling are arranged in same warehouse up and down, and activated coke ellipse material pipe is direct-connected up and down, and stream stream is smooth, works continuously.By controlling the rotary speed of post roller, control the conveying capacity of active carbon, burnt, charcoal 1 is by the continuous injection heating of reinforced buffering nitrogen injection device, cooling regeneration storehouse, be nitrogen by the air displacement in ellipse material pipe and gas collecting segment, charcoal/Jiao in reinforced buffering chamber enters oval material pipe by reinforced buffering chamber through charging valve, under the protection of nitrogen, Jiao/charcoal is regenerated by the high-temperature flue gas indirect outside ellipse material pipe in ellipse material pipe, the regeneration activity that so can obtain higher quality is burnt, the waste gas parsed, gas collecting segment is expelled to by the waste gas venthole on ellipse material pipe, collected by gas collecting apparatus again, resolve active carbon/Jiao after regeneration at ellipse material Bottomhole pressure to cooling section, cold air outside oval material pipe cools, then discharging buffering chamber is exported to through discharge valve, so far the whole regenerative process of active carbon is completed.
In the present embodiment, the air guide dividing plate 26 that some spacing are arranged is provided with in described heating, cooling regeneration storehouse, air guide dividing plate described in the axes normal of described ellipse material pipe, spacing often between adjacent two air guide dividing plates is equal, and hot gas, cold air are assigned to each section of oval material pipe by described air guide dividing plate uniformly.The conveniently whereabouts of coke, described ellipse expects with oval, pipe expects that the cross section of the central axis upright of pipe is for being ellipticity.Conveniently Jiao/charcoal falls smoothly in ellipse material pipe, and avoid outside Jiao/charcoal landing to oval material pipe, the waste gas gas outlet on each described ellipse material pipe is blinds gas outlet simultaneously.
Embodiment 2
As shown in Figure 1, the energy saving and environment friendly active coke regeneration system of the present embodiment, comprise Analytic Tower, transport the saturated active coke conveying arrangement of saturated active coke to Analytic Tower, described Analytic Tower is arranged on blast furnace region, wherein said Analytic Tower is communicated with by hot blast conveying pipe road with the combustion-supporting flue gas exhaust mouth of blast-furnace hot-air, and described Analytic Tower draws the flue gas that exports from the combustion-supporting flue gas exhaust mouth of described blast-furnace hot-air as parsing hot gas by described hot air duct.
The present embodiment be included on the basis of embodiment 1 described active resolver exit for filtering out diameter at the vibratory sieve of the activated coke particle of below 0.5cm and activated coke storage silo and the embedded scraper transporter activated coke of 0.5cm-1cm on reciprocating sieve being delivered to described activated coke storage silo, be provided with activated coke particle storehouse pump below the sieve aperture of described vibratory sieve, described activated coke particle storehouse pump is connected with pulverized coal injection feed bin by activated coke particulate transportation pipeline.Described activated coke particle is delivered to described pulverized coal injection feed bin by Pneumatic conveyer, and the power gas of described Pneumatic conveyer is the nitrogen of 0.5MPa.
The implementation process of the present embodiment is: adsorb saturated activated coke is regularly transported to desorption and regeneration station every day saturated active coke feed bin 1 with vacuum tank car, sends needing the saturated active coke of desorb into Analytic Tower 3 by bucket elevator 2.Activated coke desorption and regeneration station is arranged on blast furnace region, and a 450-550 used DEG C hot blast draws from the combustion-supporting waste gas system pipeline 12 of blast funnace hot blast stove, and do not need to arrange heating fuel system in addition, invest little, efficiency of energy utilization is high, reduces combustion heating simultaneously and produces NOx.Connect an arm 11 from the combustion-supporting exhaust duct 12 of hot-blast stove, draw and meet activated coke desorb Air Quantity Required, temperature about 500 DEG C, delivers to the top stripping stage of desorption and regeneration tower 3.Regeneration stripping stage adopts the indirect type of cooling, and hot blast is by the heat exchange pipeline inner and outer saturated active coke indirect heat exchange of desorb heat exchanger 4, and the heat exchange pipeline of heat exchanger 4 adopts No. 20 seamless steel tube for boiler.Saturated active coke slowly declines in container inside, with high-temperature hot flue gas indirect heat exchange, and the H of absorption in saturated active coke
2sO
4resolve into H
2o and SO
2desorb is overflowed, and is risen to the top of Analytic Tower 3 by activated coke particulate interspaces, is drawn, high concentration SO by special outlet
2gas is drawn by pipeline, receives accessory contact formula and absorbs acid making system utilization.Between desorb heat exchanger 4 and cooling heat exchanger 6, arrange one section of changeover portion 5, changeover portion 5 adopts the isolated protection of nitrogen.Activated coke through desorption and regeneration slowly drops to Analytic Tower bottom, bottom Analytic Tower is provided with cooling heat exchanger 6, activated coke heat exchange after the cooling tube outer wall of cooling heat exchanger 6 and desorption under high temperature, inwall blasts cooling-air, by the activated coke of desorption state about 450 DEG C, be cooled to less than 150 DEG C, the activated coke of regeneration falls into vibratory sieve 7 under regenerator, the activated coke that on sieve, 0.5cm-1cm is qualified directly delivers to active coke storage 8, regularly delivers to the active coke storage at absorption station every day with vacuum tank car.Shine lower meticulous broken activated coke and enter a storehouse pump 9, by storehouse pump 9 and pipeline 10, direct Geldart-D particle, to the pulverized coal warehouse 13 of pulverized coal injection, sprays into blast-furnace roasting with coal dust, and the gases used medium of Geldart-D particle adopts the nitrogen of 0.5MPa to burn to prevent activated coke ingress of air.Activated coke, before every order of classes or grades at school desorb charging, first adopts nitrogen to purge, runs into air burning to prevent activated coke.Protection and Geldart-D particle nitrogen draw Self-air-heating furnace system nitrogen tube 14.O2 gas componant sampling monitoring is set in regenerator, must ensures that O2 content could run below 2%.
As shown in Fig. 4 to 5, in the present embodiment, described Analytic Tower comprise from top to bottom set gradually reinforced temporary storing bin 41, activated coke regeneration storehouse, discharging temporary storing bin 422, wherein said activated coke regeneration storehouse is divided into reinforced straight length 43, heating pipeline section 411 from top to bottom successively, fill nitrogen excessively expects pipeline section 412, cooling pipeline section 419, discharging straight length 420.
Be provided with plenum chamber 44 outside wherein said reinforced straight length, described reinforced straight length is provided with ventilative orifice plate 5, and described ventilative orifice plate is provided with the air-vent being communicated with reinforced straight length inside and plenum chamber.The waste gas that heating of Activated Jiao parses, through about reinforced straight length, two pieces of ventilative orifice plates are discharged by plenum chamber outlet.
Be respectively equipped with outside described heating pipeline section and add heat smoke air inlet header 47, add heat smoke to give vent to anger header 410, described heating pipeline section and described add to be provided with between heat smoke air inlet header add heat smoke qi-emitting hole plate 8, described heating pipeline section and described add to be provided with between heat smoke air inlet header add heat smoke gas collection hole plate 49, described heating tube intersegmental part also adds mistake and is furnished with some buried heating smoke pipes, two openends of each described buried heating tube respectively expanded joint add heat smoke qi-emitting hole plate in described and add in the hole on heat smoke gas collection hole plate, describedly buriedly add that thermal chimney interlaced arrangement is horizontal to be embedded in activated coke.Add heat smoke through air inlet header, smoke pipe and header of giving vent to anger, indirect activated coke.
Namely changeover portion between heating pipeline section and cooling pipeline section also fills nitrogen and excessively expects that pipeline section is provided with nitrogen charging device; the described nitrogen that fills excessively expects that pipeline section 412 is communicated with nitrogen charging device 413; described nitrogen charging device is to nitrogen injection in described activated coke regeneration storehouse; diffuse to cooling pipeline section, heating pipeline section and gas collection pipeline section gradually, the burnt thermal regeneration of prolection.
Cooling-air air inlet header 415 is respectively equipped with outside described cooling pipeline section 419, cooling-air is given vent to anger header 417, cooling-air gas distribution orifice plate 416 is provided with between described cooling pipeline section and described cooling-air air inlet header, cooling-air gas collection orifice plate 418 is provided with between described cooling pipeline section and described cooling-air air inlet header, described cooling tube intersegmental part also adds mistake and is furnished with some buried cooling-air pipes 414, two openends of each described buried cooling-air pipe are distinguished in the hole of expanded joints on described cooling-air gas distribution orifice plate and cooling-air gas collection orifice plate, described buried cooling-air pipe interlaced arrangement is horizontal to be embedded in activated coke.Cooling-air, through air inlet header, cooling-air pipe and header of giving vent to anger, cools activated coke indirectly.
As shown in Figure 6, in the various embodiments described above, described charging valve, discharge valve is the star-like trapping valve of double-deck multiple row, described double-deck multiple row star-like trapping valve comprises the valve body 30 of some both ends opens arranged successively, the one end open of described valve body is connected with reinforced buffering chamber or discharging buffering chamber, the other end opening of described valve body and described heating, cooling regeneration storehouse is connected, comprising of each described valve body, lower two opposed post roller accommodating cavities 31, 33 and be communicated with the connected chamber 32 of post roller accommodating cavity described in two, wherein, a post roller 34 is respectively equipped with in post roller accommodating cavity described in two, described accommodating cavity is the arcuate structure suitable with described post roll shape, the gap passed through for material is provided with between described post roller and the sidewall of described accommodating cavity, the sidewall of described connected chamber is provided with the nitrogen air admission hole 321 of the nitrogen outlet being communicated with described nitrogen injection device.
Due to the shape of star-like post roller and cavity inner wall shape suitable, can ensure that the width in gap is relatively more consistent, make discharge rate even.Material enters in the cavity above being in from charging aperture, and under gravity along the gap landing between this cavity inner wall and the star-like post roller in it, in the cavity that connected chamber arrives below, then along the gap landing between below cavity inner wall and the star-like post roller in it to discharging opening.
Nitrogen injection device launches nitrogen, nitrogen enters in connected chamber by nitrogen inlet hole, nitrogen is full of in connected chamber, so nitrogen defines nitrogen separation layer in connected chamber, cut off the air circulation between the cavity of top and the cavity of below, make material by connected chamber, and air is not by connected chamber, thus avoids and collaborate up and down.
Owing to being provided with multiple valve body be arranged side by side, each valve body all can discharging, so improve discharging quantity.
Described double-deck multiple row star-like trapping valve also comprises the transmission device driving described post roller to rotate, and described transmission device comprises the motor, reductor and the chain transfer mechanism that are in transmission connection successively, and described chain transfer mechanism and described star-like post roller are in transmission connection.Machine operation, drives the drive axis of reductor, and the power transmission shaft of reductor drives the chain of chain drive to rotate, thus drives star-like post roller to rotate, easy to operate, reliable.To the further improvement of the program, the end that described star-like post roller is positioned at outside described discharge duct is connected with associated sealing arrangement for bearings.Avoid air and enter into discharge valve inside from the gap between the end and discharge duct tube wall of star-like post roller, further increase trapping performance.
Embodiment 3
The present embodiment energy-saving ring type reactive coke regeneration method, comprising:
Regularly in Analytic Tower, transport saturated active coke.
The flue gas exported by blast-furnace hot-air combustion-supporting flue gas exhaust mouth as Analytic Tower described saturated active coke resolved needed for hot gas.
Filtered out the activated coke particle that diameter is below 0.5cm by burnt for the regeneration activity after being parsed by vibratory sieve, described activated coke particle is used for blast furnace fuel, reclaiming diameter is that the regeneration activity of 0.5cm or more than 0.5cm is burnt.
Described activated coke particle and blast-furnace coal powder are mixed for blast furnace fuel.
In the present embodiment, Analytic Tower is arranged on blast furnace ironmaking region, resolves a 450-550 used DEG C hot blast and draws from the combustion-supporting gas exhaust piping flue gas of blast funnace hot blast stove, do not need to arrange heating fuel system in addition.
The burnt regenerative system of described a kind of energy-saving environment protection active, the particle that activated coke can not reuse, adopts pneumatic conveying mode to send into pulverized coal injection feed bin, sprays into blast furnace combustion.Discarded activated coke Geldart-D particle dispensing device adopts cone pump or other forms, and power source is nitrogen.
In the various embodiments described above, the setting of Analytic Tower and adsorption system, run completely independent, the saturated active coke that the parsing recycle service provided can be any enterprise, industry adopts activated coke absorbing process to produce.
It is rear by particle under the sieve of screening that activated coke used parsing regeneration is adsorbed in the present invention, and the activated coke after iterative parsing lost efficacy, for blast furnace blowing fuel, spray into blast furnace combustion, do not produce any harmful substance, in activated coke, the micro heavy of absorption enters blast-melted, does not affect blast-melted quality.Discarded activated coke adopts pneumatic conveying mode to send into pulverized coal injection feed bin, sprays into blast furnace combustion, and Geldart-D particle dispensing device adopts cone pump or other forms, and power source is nitrogen.This system is applicable to the saturated active coke parsing regenerative system that the burning of agglomerates of sintered pellets flue gas, coke oven flue gas, rubbish and danger wastes, boiler smoke etc. adopt activated coke adsorption cleaning system to produce.The high-concentration sulfur dioxide of drawing after resolving is sent to acid making system, is prepared to sulfuric acid, for iron and steel enterprise's cold strip mill spent pickling acid.
Whole activated coke resolves regenerative system small investment, operating cost is low; The using energy source of the combustion-supporting smoke evacuation of blast funnace hot blast stove is abundant, and decreases the secondary pollution of thermal pollution and newly-increased burning generation nitrogen oxide; Harmful sulfur dioxide is utilized the sulfuric acid being prepared into economic worth and utilizes; Unavailable activated coke is used as blast furnace fuel, non-secondary pollution.Therefore, this invented technology provides a kind of not only energy-conservation but also activated coke of environmental protection and resolves regenerative system.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should define with claim is as the criterion.
Claims (10)
1. an energy saving and environment friendly active coke regeneration system, it is characterized in that: comprise Analytic Tower, transport the saturated active coke conveying arrangement of saturated active coke to Analytic Tower, described Analytic Tower is arranged on blast furnace region, wherein said Analytic Tower is communicated with by hot blast conveying pipe road with the combustion-supporting flue gas exhaust mouth of blast-furnace hot-air, and described Analytic Tower draws the flue gas that exports from the combustion-supporting flue gas exhaust mouth of described blast-furnace hot-air as parsing hot gas by described hot air duct.
2. energy saving and environment friendly active coke regeneration system according to claim 1, it is characterized in that: also comprise be arranged on described activated coke resolver exit for filtering out the vibratory sieve of diameter at the activated coke particle of below 0.5cm, be provided with activated coke particle storehouse pump below the sieve aperture of described vibratory sieve, described activated coke particle storehouse pump is connected with pulverized coal injection feed bin by activated coke particulate transportation pipeline.
3. energy saving and environment friendly active coke regeneration system according to claim 2, it is characterized in that: described activated coke particle storehouse pump and described activated coke transport pipeline are tightly connected, described activated coke transport pipeline is gastight conduit, described activated coke particle is delivered to described pulverized coal injection feed bin by Pneumatic conveyer, and the power gas of described Pneumatic conveyer is the nitrogen of 0.5MPa.
4. energy saving and environment friendly active coke regeneration system according to claim 2, is characterized in that: also comprise activated coke storage silo and the activated coke of 0.5cm-1cm on reciprocating sieve is delivered to the embedded scraper transporter of described activated coke storage silo.
5. energy saving and environment friendly active coke regeneration system according to claim 1, is characterized in that: also comprise the content of oxygen detecting device be arranged in described Analytic Tower.
6. energy saving and environment friendly active coke regeneration system according to claim 1, it is characterized in that: described Analytic Tower comprises the reinforced buffering chamber set gradually from top to bottom, heating, cooling regeneration storehouse, discharging buffering chamber, wherein said heating, cooling regeneration storehouse comprises shell, described enclosure is divided into gas collecting segment from top to bottom successively, bringing-up section, nitrogen Injection Section, cooling section, some oval material pipes are provided with in described shell, charging valve is provided with between the entrance of described ellipse material pipe and described reinforced buffering chamber, discharge valve is provided with between the outlet of described ellipse material pipe and described discharging buffering chamber, each described ellipse material pipe is equipped with waste gas gas outlet, the corresponding gas collecting segment in described waste gas gas outlet, described integrated tower also comprises gas collecting apparatus, nitrogen injection device, described gas collecting apparatus is communicated with described gas collecting segment, described nitrogen injection device and described heating, cooling regeneration storehouse bringing-up section and described ellipse material pipe are communicated with, described bringing-up section is communicated with hot gas conveying device, described cooling section is communicated with cold air conveying device, the hot gas Left-wing Federation case that described bringing-up section is communicated with, the right header of hot gas, the cold air Left-wing Federation case that described cooling section is communicated with, the right header of cold air.
7. agglomerates of sintered pellets flue gas recycling system according to claim 6, it is characterized in that: in described heating, cooling regeneration storehouse, be provided with the air guide dividing plate that some spacing are arranged, air guide dividing plate described in the axes normal of described ellipse material pipe, the spacing often between adjacent two air guide dividing plates is equal; Described ellipse expects with oval, pipe expects that the cross section of the central axis upright of pipe is for being ellipticity, and the waste gas gas outlet on each described ellipse material pipe is blinds gas outlet.
8. agglomerates of sintered pellets flue gas recycling system according to claim 1, it is characterized in that: described Analytic Tower comprise from top to bottom set gradually reinforced temporary storing bin, activated coke regeneration storehouse, discharging temporary storing bin, wherein said activated coke regeneration storehouse is divided into reinforced straight length from top to bottom successively, heat pipeline section, fill nitrogen excessively expects pipeline section, cooling pipeline section, discharging straight length;
Be provided with plenum chamber outside wherein said reinforced straight length, described reinforced straight length is provided with ventilative orifice plate, and described ventilative orifice plate is provided with the air-vent being communicated with reinforced straight length inside and plenum chamber;
Be respectively equipped with outside described heating pipeline section and add heat smoke air inlet header, add heat smoke and to give vent to anger header, described heating pipeline section and described add to be provided with between heat smoke air inlet header add heat smoke qi-emitting hole plate, described heating pipeline section and described add to be provided with between heat smoke air inlet header add heat smoke gas collection hole plate, described heating tube intersegmental part also adds mistake and is furnished with some buried heating smoke pipes, and two openends of each described buried heating tube respectively expanded joint add heat smoke qi-emitting hole plate in described and add in the hole on heat smoke gas collection hole plate;
The described nitrogen that fills excessively expects that pipeline section is communicated with nitrogen charging device, and described nitrogen charging device is to nitrogen injection in described activated coke regeneration storehouse;
Be respectively equipped with cooling-air air inlet header outside described cooling pipeline section, cooling-air gives vent to anger header, cooling-air gas distribution orifice plate is provided with between described cooling pipeline section and described cooling-air air inlet header, cooling-air gas collection orifice plate is provided with between described cooling pipeline section and described cooling-air air inlet header, described cooling tube intersegmental part also adds mistake and is furnished with some buried cooling-air pipes, and two openends of each described buried cooling-air pipe are distinguished in the hole of expanded joints on described cooling-air gas distribution orifice plate and cooling-air gas collection orifice plate;
Be provided with charging valve between described reinforced straight length and described reinforced temporary storing bin, between described discharging straight length and described discharging temporary storing bin, be provided with discharge valve;
Described activated coke regeneration storehouse is hourglass configuration.
9. the agglomerates of sintered pellets flue gas recycling system according to claim 6 or 8, it is characterized in that: described charging valve, discharge valve is the star-like trapping valve of double-deck multiple row, described double-deck multiple row star-like trapping valve comprises the valve body of some both ends opens arranged successively, the one end open of described valve body is connected with reinforced buffering chamber or discharging buffering chamber, the other end opening of described valve body and described heating, cooling regeneration storehouse is connected, comprising of each described valve body, the connected chamber of lower two opposed post roller accommodating cavities and the post roller accommodating cavity of connection described in two, wherein, 1 post roller is respectively equipped with in post roller accommodating cavity described in two, described accommodating cavity is the arcuate structure suitable with described post roll shape, the gap passed through for material is provided with between described post roller and the sidewall of described accommodating cavity, the sidewall of described connected chamber is provided with the nitrogen air admission hole of the nitrogen outlet being communicated with described nitrogen injection device,
Described double-deck multiple row star-like trapping valve also comprises the transmission device driving described post roller to rotate, and described transmission device comprises the motor, reductor and the chain transfer mechanism that are in transmission connection successively, and described chain transfer mechanism and described star-like post roller are in transmission connection.
10. an energy-saving ring type reactive coke regeneration method, is characterized in that: described method comprises:
Regularly in Analytic Tower, transport saturated active coke;
The flue gas exported by blast-furnace hot-air combustion-supporting flue gas exhaust mouth as Analytic Tower described saturated active coke resolved needed for hot gas;
Filtered out the activated coke particle that diameter is below 0.5cm by burnt for the regeneration activity after being parsed by vibratory sieve, described activated coke particle is used for blast furnace fuel, reclaiming diameter is that the regeneration activity of 0.5cm or more than 0.5cm is burnt.
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| CN110068489A (en) * | 2019-06-12 | 2019-07-30 | 中冶北方（大连）工程技术有限公司 | Activated coke particle and regeneration gas separating pressure sampler |
| CN113651325A (en) * | 2021-08-16 | 2021-11-16 | 宁夏宁疆疆泰炭材料科技有限公司 | Production equipment and process for manufacturing desulfurization and denitrification active coke by using multi-stage furnace |
| CN114471153A (en) * | 2022-02-12 | 2022-05-13 | 中太海碳(上海)环保科技有限公司 | For mixing CO in solution2Solution heating and desorption tower |
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| CN204841711U (en) * | 2015-07-24 | 2015-12-09 | 中冶华天工程技术有限公司 | Active burnt regeneration system of energy -concerving and environment -protective type |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106390681A (en) * | 2016-11-15 | 2017-02-15 | 东莞市佳明环保科技有限公司 | Double-fluidized bed adsorption and desorption device and method for continuous treatment of organic waste gas |
| CN110068489A (en) * | 2019-06-12 | 2019-07-30 | 中冶北方（大连）工程技术有限公司 | Activated coke particle and regeneration gas separating pressure sampler |
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| CN113651325B (en) * | 2021-08-16 | 2023-12-08 | 宁夏宁疆疆泰炭材料科技有限公司 | Production equipment and process for manufacturing desulfurization and denitrification active coke by multi-stage furnace |
| CN114471153A (en) * | 2022-02-12 | 2022-05-13 | 中太海碳(上海)环保科技有限公司 | For mixing CO in solution2Solution heating and desorption tower |
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| CN105056918B (en) | 2017-08-25 |
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Denomination of invention: Energy-saving environment-friendly type active coke regeneration system and method thereof Effective date of registration: 20180427 Granted publication date: 20170825 Pledgee: Huizhou merchant bank Ma'anshan Fuyuan branch Pledgor: Zhongye Huatian Engineering Technology Co., Ltd. Registration number: 2018340000125 |
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Address after: Jianye District of Nanjing City, Jiangsu province 210019 the Fuchun River Street No. 18 Patentee after: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Address before: 243005 No. 699 West Hunan Road, Anhui, Ma'anshan Patentee before: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC |