CN103335315A - Garbage pyrolysis and incineration device and working method thereof - Google Patents
Garbage pyrolysis and incineration device and working method thereof Download PDFInfo
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- CN103335315A CN103335315A CN2013102557246A CN201310255724A CN103335315A CN 103335315 A CN103335315 A CN 103335315A CN 2013102557246 A CN2013102557246 A CN 2013102557246A CN 201310255724 A CN201310255724 A CN 201310255724A CN 103335315 A CN103335315 A CN 103335315A
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Abstract
The invention provides a garbage pyrolysis and incineration device and a working method thereof. The pyrolysis and incineration device comprises a stock bin, a feeding channel, a vertical furnace body, a fire grate and two combustion chambers, and further comprises at least two cavities, a heat storage material, a pipeline, a driving device and a channel, wherein the cavities are formed on the outlet sides of the two combustion chambers; the heat storage material is arranged inside the device or on the side part of the device; the input end of the pipeline is communicated with any one of the at least two cavities, and the output end of the pipeline is communicated with the furnace body; the driving device is used for driving the at least two cavities to move horizontally or rotate, so that when any one of the at least two cavities is communicated with the two combustion chambers, the other cavity is communicated with the input end of the pipeline; the channel is formed below the fire grate; and ash leaking from the fire grate passes downwards through the channel, and air passes upwards through the channel. The garbage pyrolysis and incineration device has the advantages of high garbage treatment capacity, low tar content of pyrolysis gas, high degradability of dioxin due to high incineration temperatures in the two combustion chambers, low running cost, high heat supply and power generation amounts of low-tonnage garbage and the like, and can be widely applied to garbage treatment.
Description
Technical field
The present invention relates to the pyrolytic incineration device.
Background technology
At present, China's domestic waste ubiquity moisture height (more than 50%), ash content height characteristics such as (can reach about 30%).The pyrolytic incineration device can adapt to this kind operating mode preferably, obtained concern more and more widely and applies.
In traditional upright converter pyrolyzing, gasifying and incinerating device, body of heater is the tubular vertical structure, is installed on the revolving dial, and the rotary conic fire grate is arranged in the body of heater, and air feeds in the described body of heater by described cone-shaped grates.Such upright converter pyrolyzing, gasifying and incinerating device has many deficiencies, as:
1, the pyrolysis reaction temperature in the pyrolysis body of heater is lower, and the rubbish that is lower than certain calorific value will be not suitable for carrying out pyrolysis processing, limit the application of this kind device.Pyrolysis reaction temperature is low, and pyrolytic process is slow, and rubbish time of staying in body of heater is long, and garbage treatment quantity is low; Tar content height in the thermal decomposition product may cause line clogging;
2, dual firing chamber's ignition temperature is low, better degrades for guaranteeing dioxin, needs big dual firing chamber volume;
3, slag tap soon, waste heat reclaims hardly in the slag; For high ash content rubbish, heat loss is big, deficiency in economic performance.
4, body of heater needs and can rotate, and has improved processing, installation difficulty; It is big that rotation mode has also limited further doing of body of heater, limited the increase of garbage treatment quantity; Be subjected to the influence of pyrolysis furnace high-temperature, deformation can take place in huge body of heater, causes the consequence of body of heater easy sideslip in rotary course, and cost, the time of maintenance and rectification are all higher, have influenced the continuous processing of rubbish, have improved operating cost;
5, adopt the middle rotary conic fire grate of furnace bottom cloth wind, cloth wind is inhomogeneous, and air is only sent in the body of heater in the fire grate place, and there is cloth wind white space in the marginal portion in body of heater, causes refuse pyrolysis, incomplete combustion in the body of heater, hot burn decrement rate height.
Therefore, how accelerating that pyrolytic process improves garbage treatment quantity, reduction equipment processing installation difficulty, reduces the engineering maintenance amount, improves the garbage disposal economic benefit, adapts to various high ash content high-moisture rubbish is technical barriers that refuse pyrolysis burning field presses for solution.
Summary of the invention
In order to solve the deficiency in the above-mentioned prior art scheme, the invention provides a kind of refuse pyrolysis incinerator, solved in the body of heater that pyrolysis temperature is lower, processing installation difficulty height, garbage treatment quantity is little, operating cost is high, cloth wind has technical barriers such as blank, hot burn decrement rate height, garbage disposal deficiency in economic performance in the body of heater.
The objective of the invention is to be achieved through the following technical solutions:
A kind of refuse pyrolysis incinerator, described pyrolytic incineration device comprises feed bin, the passage that feeds intake, body of heater, fire grate and dual firing chamber; Described device further comprises:
At least two cavitys, described at least two cavitys are arranged on the outlet side of described dual firing chamber; Inside or sidepiece at described at least two cavitys arrange heat accumulating;
Pipeline, the input of described pipeline is communicated with any in described at least two cavitys, and output is communicated with in the described body of heater;
Drive unit, described drive unit be used for to drive described at least two cavitys and rotate, and make in described two cavitys that another cavity was communicated with the input of described pipeline when any was communicated with described dual firing chamber at least;
Passage, described passage is arranged on the below of described fire grate, be used for downwards by leaking down from described fire grate lime-ash, upwards pass through air.
According to above-mentioned refuse pyrolysis incinerator, alternatively, another output of described pipeline is communicated with dual firing chamber;
According to above-mentioned pyrolytic incineration device, alternatively, the folding shape plate that tilts to install is set in the described passage.
According to above-mentioned pyrolytic incineration device, alternatively, described pyrolytic incineration device further comprises:
Temperature element, described temperature element be for detection of the temperature of the lime-ash of discharging described passage, and be sent to judging unit;
Judging unit, the temperature of described judging unit comparison temperature threshold, described lime-ash, judged result is sent to control module;
Control module, described control module are controlled the flow of the air that leads to described passage according to described judged result.
According to above-mentioned pyrolytic incineration device, alternatively, described pyrolytic incineration device further comprises:
The output that mobile device, described mobile device be used for to drive the described passage that feeds intake rotates at the furnace roof of the fixed body of heater longitudinal axis along described body of heater, output and described body of heater internal communication described in rotate;
Sealing device, described sealing device are used for making input, the output of the described passage that feeds intake to keep airtight with described bin outlet and body of heater respectively at rotation process and are connected.
According to above-mentioned pyrolytic incineration device, alternatively, described sealing device comprises:
Rotary part, described output is arranged on this rotary part regularly, and with described body of heater in be communicated with;
Sealing unit, described sealing unit is arranged between described rotary part and the body of heater.
According to above-mentioned pyrolytic incineration device, alternatively, described device further comprises:
Air-distribution device, described air-distribution device is used for providing gas, and this gas feeds the interior marginal portion of described body of heater by exhaust outlet symmetry ground, and the output of described pipeline is communicated with described exhaust outlet.
According to above-mentioned pyrolytic incineration device, alternatively, the exhaust outlet of described air-distribution device is arranged on the furnace wall of fixed body of heater.
According to above-mentioned pyrolytic incineration device, alternatively, described air-distribution device comprises at least four wind-distributing pipe roads, and described at least four wind-distributing pipe roads are arranged on the described fire grate and extend upward, and arbitrary wind-distributing pipe road is provided with at least one exhaust outlet.
According to above-mentioned pyrolytic incineration device, preferably, the height of described exhaust outlet is lower than the top of described fire grate.
According to above-mentioned pyrolytic incineration device, alternatively, described at least two cavitys are arranged on cursor or the track.
The present invention also provides a kind of method of work of refuse pyrolysis incinerator, has solved that pyrolysis temperature is lower in the body of heater, operating cost is high, garbage treatment quantity is low, the technical barrier of deficiency in economic performance.This goal of the invention is achieved through the following technical solutions:
A kind of method of work of refuse pyrolysis incinerator, described method of work may further comprise the steps:
(A1) rubbish in the feed bin enters into pyrolysis in the body of heater by the passage that feeds intake;
Lime-ash in the body of heater is discharged by fire grate, passage, and air passes described passage, fire grate and enters in the described body of heater, fills up lime-ash in the described passage;
(A2) gas that pyrolysis produces in the body of heater feeds dual firing chamber's internal combustion;
(A3) gas of discharging in described dual firing chamber is by any the also discharge at least two cavitys, and the heat accumulating of inside cavity or sidepiece gathers heat;
Air afterwards enters described body of heater in by one of other cavity in described two cavitys at least;
(A4) described at least two cavitys of drive unit driving move, cavity after making air by the accumulation heat that shifts out dual firing chamber's port of export, enter after being heated in the described body of heater, in other cavity one then moves to the port of export of described dual firing chamber and is communicated with dual firing chamber.
According to above-mentioned method of work, alternatively, described method of work further may further comprise the steps:
(B1) record the temperature of the lime-ash of discharging described passage, and be sent to judging unit;
(B2) temperature of judging unit comparison temperature threshold, lime-ash, judged result is sent to control module;
(B3) control module is controlled the flow of the air that leads to described passage according to judged result:
If described ash temperature is lower than described temperature threshold, reduce towards the flow of the air of described passage;
If described ash temperature is higher than described temperature threshold, increase the flow of the air that leads to described passage.
According to above-mentioned method of work, preferably, by entering road air in the described body of heater behind the described cavity, entering the flow of another road air in the described body of heater by fire grate, make the air mass flow sum that feeds in the described body of heater satisfy the needs of setting garbage disposal speed by control.
According to above-mentioned method of work, preferably, by control, feasible 1.02-1.1 times of being in the amount of completing combustion required air in the dual firing chamber by the air mass flow that enters described dual firing chamber behind the described cavity.
According to above-mentioned method of work, alternatively, one air by other cavity in described at least two cavitys also feeds dual firing chamber.
Compared with prior art, the beneficial effect that has of the present invention is:
1, effectively utilized and discharge the heat that dual firing chamber's gas carries and add hot-air, make that the temperature that feeds air in the body of heater is higher, reached about 600 degree, pyrolysis temperature has obtained obvious lifting in the body of heater, accelerated pyrolysis rate, shorten the time of staying of rubbish in body of heater, improved garbage treatment quantity; Reduced the tar output in the pyrolytic process, the running status of whole incinerator is safer, and the temperature of ash temperature and gaseous products is higher, helps the degraded of dioxin, helps to reduce the volume of dual firing chamber;
Under the situation that need not increase auxiliary fuel, reduced the critical calorific value that pyrolytic incineration is handled, make incinerator can handle waste of low heating value;
The part of the flue gas of discharging from dual firing chamber can also be led to waste heat boiler, has further improved the recovery utilization rate of heat;
2, waste heat is fully reclaimed in the lime-ash, has improved the garbage disposal benefit, especially for high ash content rubbish;
3, body of heater adopts fixed mode, avoided the body of heater and the easy sideslip problem of fire grate in rotary course that cause owing to huge body of heater and fire grate deformation at high temperature, reduce cost, the time of maintenance and rectification, correspondingly reduced operating cost;
4, huge body of heater maintains static, and need not to provide the mechanism of rotation platform, has reduced processing, installation difficulty; Fixed body of heater can further be done greatly, thereby improves garbage treatment quantity;
5, by the design in wind-distributing pipe road, make that the interior cloth wind of body of heater is even, there is not white space, improved the adequacy of refuse pyrolysis, burning in the body of heater, make hot burn decrement rate less than 5%, meet the GB requirement.
Description of drawings
With reference to accompanying drawing, disclosure of the present invention will be easier to understand.Those skilled in the art are understood that easily: these accompanying drawings only are used for illustrating technical scheme of the present invention, and are not to be intended to protection scope of the present invention is construed as limiting.Among the figure:
Fig. 1 is the structure diagram according to the pyrolytic incineration device of the embodiment of the invention 1;
Fig. 2 is the flow chart according to the method for work of the pyrolytic incineration device of the embodiment of the invention 1;
Fig. 3 is according to the fire grate of the embodiment of the invention 2 and the structure diagram of pipeline;
Fig. 4 is according to the fire grate of the embodiment of the invention 3 and the structure diagram of pipeline;
Fig. 5 is the structure diagram according to the circular passage of the embodiment of the invention 3;
Fig. 6 is the structure diagram according to the pyrolytic incineration device of the embodiment of the invention 4;
Fig. 7 is the vertical view according to the sealing device of the embodiment of the invention 4;
Fig. 8 is the structure diagram according to the pyrolytic incineration device of the embodiment of the invention 5;
Fig. 9 is the vertical view according to the sealing device of the embodiment of the invention 5.
The specific embodiment
Fig. 1-9 and following declarative description optional embodiment of the present invention how to implement with instruction those skilled in the art and reproduce the present invention.In order to instruct technical solution of the present invention, simplified or omitted some conventional aspects.Those skilled in the art should understand that the modification that is derived from these embodiments or replace will be within the scope of the invention.Those skilled in the art should understand that following characteristics can make up to form a plurality of modification of the present invention in every way.Thus, the present invention is not limited to following optional embodiment, and is only limited by claim and their equivalent.
Embodiment 1:
Fig. 1 has schematically provided the structure diagram of the refuse pyrolysis incinerator of the embodiment of the invention, and as shown in Figure 1, described pyrolytic incineration device comprises:
Feed bin 1, the passage 2 that feeds intake, body of heater 3, fire grate 4 and dual firing chamber 6, described body of heater adopts vertical converter; These parts and connected mode all are the state of the art, do not repeat them here;
At least two cavitys 8, described at least two cavitys 8 are arranged on the outlet side of described dual firing chamber; Inside or sidepiece at described at least two cavitys 8 arrange heat accumulating (as ceramic bead), make the heat that carries from the gas of dual firing chamber's 6 discharges partly be retained in the described material;
Drive unit (not shown), described drive unit be used for to drive described at least two cavitys 8 translations or rotation, make in described two cavitys 8 that another cavity was communicated with the input of described pipeline 7 when any was communicated with described dual firing chamber 6 at least.Preferably, described another cavity is described at least two cavity translations or rotates the preceding cavity that is communicated with described dual firing chamber;
Passage, described passage are arranged on described fire grate bottom, be used for downwards by leaking down from fire grate lime-ash, upwards by air, in the intersection process of lime-ash and air, heated air.
In order to increase the travel path length of air in described passage, to take full advantage of the lime-ash heat, alternatively, the folding shape plate that tilts to install is set in the described passage, be elongate with channels designs perhaps.
In order to recycle the heat that lime-ash carries further, reduce the temperature of channel outlet lime-ash, alternatively, described incinerator further comprises:
Temperature element, described temperature element be for detection of the temperature of the lime-ash of discharging described passage, and be sent to judging unit; Temperature element adopts temperature sensor;
Judging unit, the temperature of described judging unit comparison temperature threshold, described lime-ash, judged result is sent to control module; Described judging unit can adopt circuit or software to realize, specific implementation is state of the art.
Control module, described control module are controlled the flow of the air that leads to described passage according to described judged result.Described control module can adopt circuit or software to realize, specific implementation is the state of the art.
In order to improve two adequacies of firing and to improve two combustion ignition temperatures, alternatively, the output of described pipeline also is communicated with described dual firing chamber.
In order to recycle heat effectively, alternatively, the flue gas that described dual firing chamber discharges is transported to waste heat boiler.
For transposition better, be communicated with described pipeline again after making the cavity that is communicated with dual firing chamber produce or shift out, preferably, described at least two cavitys are arranged on cursor or the track.
For installation, the difficulty of processing that reduces whole incinerator, further reduce the maintenance engineering amount, prevent the negative consequence of sideslip in the huge body of heater rotation, alternatively, described pyrolysis oven adopts fixedly body of heater, realizes even blanking by the rotation charging device, comprising:
The output that drive unit, described drive unit be used for to drive the described passage that feeds intake rotates at the furnace roof of the fixed body of heater longitudinal axis along described body of heater, output and described body of heater internal communication described in rotate;
Sealing device, described sealing device are used for making the described passage input that feeds intake, output keep airtight with described feed bin, body of heater respectively at rotation process and be connected.
Rotate in order to drive the passage that feeds intake better, alternatively, described sealing device comprises:
Rotary part, described output is arranged on this rotary part regularly, and with described body of heater in be communicated with;
Sealing unit, described sealing unit are arranged between described rotary part and the body of heater and between bin outlet and the input.
In order to improve the cloth wind uniformity in the body of heater, alternatively, described pyrolytic incineration device further comprises:
Air-distribution device, described air-distribution device is used for providing gas, and this gas feeds the interior marginal portion of described body of heater by exhaust outlet symmetry ground, and the output of described pipeline is communicated with described exhaust outlet.
In order to adapt to fixed body of heater, alternatively, the exhaust outlet of described air-distribution device is arranged on the furnace wall of fixed body of heater.
In order to adapt to the rotary type body of heater, alternatively, described air-distribution device comprises at least four wind-distributing pipe roads, and described at least four wind-distributing pipe roads are arranged on the described fire grate or furnace bottom is located and extended upward near the furnace wall, and arbitrary wind-distributing pipe road is provided with at least one exhaust outlet.
Preferably, the height of described exhaust outlet is lower than the top of described fire grate.
In order to cooperate the rotation of the output of the passage that feeds intake better, preferably, the longitudinal axis conllinear of the longitudinal axis of described feed bin and described body of heater, thus make the input of the described passage that feeds intake, output all rotate around the described longitudinal axis.
Fig. 2 has schematically provided the flow chart of method of work of the refuse pyrolysis incinerator of the embodiment of the invention, and as shown in Figure 2, the method for work of described pyrolytic incineration device may further comprise the steps:
(A1) rubbish in the feed bin enters into pyrolysis in the body of heater by the passage that feeds intake;
Lime-ash in the body of heater is discharged by fire grate, passage, and air passes described passage, fire grate and enters in the described body of heater, fills up lime-ash in the described passage;
(A2) gas that pyrolysis produces in the body of heater feeds dual firing chamber's internal combustion;
(A3) gas of in described dual firing chamber, discharging by at least two cavitys any and discharge, the heat accumulating of inside cavity or sidepiece gathers heat, thereby the part of the heat that the gas of discharging dual firing chamber carries is retained in the described material;
Air afterwards enters described body of heater in by other cavity in described two cavitys at least;
(A4) described at least two cavitys of drive unit driving move, cavity after making air by the accumulation heat that shifts out dual firing chamber's port of export, air after being heated enters in the described body of heater, and in other cavity one then moves to the port of export of described dual firing chamber and is communicated with dual firing chamber.
In order to recycle the heat that lime-ash carries effectively, alternatively, in described step (A1), the lime-ash in the body of heater is discharged by fire grate, passage, and air passes described passage, fire grate and enters in the described body of heater.
In order to recycle the heat that lime-ash carries further, alternatively, described method of work further may further comprise the steps:
(B1) record the temperature of the lime-ash of discharging described passage, and be sent to judging unit;
(B2) temperature of judging unit comparison temperature threshold, lime-ash, judged result is sent to control module;
(B3) control module is controlled the flow of the air that leads to described passage according to judged result:
If described ash temperature is lower than described temperature threshold, reduce towards the flow of the air of described passage;
If described ash temperature is higher than described temperature threshold, increase the flow of the air that leads to described passage.
The heat that carries for the gas of recycle discharging dual firing chamber effectively, alternatively, described step (A3), in, the part from the gas that described dual firing chamber discharges is led to waste heat boiler.
For installation, the difficulty of processing that reduces whole incinerator, further reduce the maintenance engineering amount, prevent the negative consequence of sideslip in the huge body of heater rotation, preferably, in described step (A3), (A4), the air of exporting in the cavity enters in the described body of heater by the sidepiece of fixing body of heater.
In order to adapt to fixed body of heater, preferably, in described step (A1), the output of the passage that feeds intake rotates along the longitudinal axis of fixing body of heater, thereby incinerated matter is put into zones of different in the body of heater respectively, and covers the Zone Full in the body of heater.Gas in the body of heater is discharged from the sidepiece of body of heater, and enters and carry out second-time burning in the described dual firing chamber.
In order to cooperate the rotation of the output of the passage that feeds intake better, preferably, the longitudinal axis conllinear of the longitudinal axis of described feed bin and described body of heater, thus make the input of the described passage that feeds intake, output all rotate around the described longitudinal axis.
The benefit that reaches according to incinerator and the method for work of present embodiment 1 is: the temperature that has improved the air that enters body of heater (and dual firing chamber), prevented wasting of lime-ash discharge heat, correspondingly improved furnace temperature, and then quickening pyrolysis rate, reduce the critical calorific value of garbage disposal, and then improved garbage treatment quantity, reduced tar content in the thermal decomposition product, reduced dual firing chamber's volume, improved the economic benefit of garbage disposal; The fixed body of heater that adopts has reduced processing, installation difficulty and follow-up engineering maintenance amount, has avoided the negative consequence of the sideslip that huge rotary body of heater brings.
Embodiment 2:
Pyrolytic incineration device and the application examples of method of work in the domestic garbage pyrolysis gasification burning according to embodiment 1.
In this application examples, body of heater adopts conventional vertical converter.
Fig. 3 has schematically provided the fire grate of present embodiment and the structure diagram of pipeline, shown in 3,4 wind-distributing pipe roads 9 straight up is set symmetrically on cone-shaped grates 4, and the top in each wind-distributing pipe road 9 is tilted to down setting, is used for preventing that slag from entering exhaust outlet.Each wind-distributing pipe road 9 is provided with 2 exhaust outlets, and the exhaust outlet of equal height is symmetrical distribution, the zone, close furnace wall in the gas flow body of heater of discharging from exhaust outlet.The height of the exhaust outlet that the position is the highest is lower than the top of described fire grate.The fire grate below arranges the passage of elongate, described passage is used for downwards by the lime-ash that leaks down from described hole, upwards passing through air, thereby the heat that the downward lime-ash of absorption of air is upwards carried improves the temperature that enters the air in the body of heater, to accelerate pyrolysis rate.In whole process, lime-ash is full of described passage, and constantly moves down.
The inner pyrolysis of body of heater produces gas and discharges from the top of body of heater, and enters in the dual firing chamber.
Cavity is arranged on the motor-driven cursor, and quantity is two, is in the port of export of dual firing chamber, the output of pipeline respectively, transposition when cavity rotates.The sidepiece of each cavity is provided with casing, is filled with ceramic bead in the case, is used for absorbing the heat of the gas of discharging dual firing chamber, and is used for heating the air that enters in the described body of heater, before the dual firing chamber.Air after the heating is sent into dual firing chamber respectively and is entered in the described body of heater by described 4 wind-distributing pipe roads from bottom of furnace body.
Temperature element adopts temperature sensor, and judging unit and control module all adopt circuit to realize.Temperature threshold is set to 200 degree.
By described cavity, another part leads to waste heat boiler from the part of the flue gas of dual firing chamber output.
Valve is set, is used for controlling respectively by described passage and enters air mass flow in the body of heater, enter air mass flow in the body of heater by described wind-distributing pipe road, make that the garbage disposal in the described pyrolysis oven is in optimum Working.
Embodiment 3:
Pyrolytic incineration device and the application examples of method of work in domestic garbage pyrolysis burns according to embodiment 1.
In this application examples, body of heater adopts conventional vertical converter.
Fig. 4 has schematically provided the fire grate of present embodiment and the structure diagram of pipeline, shown in 4,6 wind-distributing pipe roads 9 straight up is set symmetrically on cone-shaped grates 4.It is looped pipeline that the top in described 6 wind-distributing pipe roads, the place that the interlude height is identical are communicated with, total three highly different looped pipelines, and each looped pipeline is provided with 8 exhaust outlets of symmetrical distribution, as shown in Figure 5.Near the zone, furnace wall, avoided the appearance of cloth wind clear area in the gas flow body of heater of discharging from exhaust outlet.The height of the exhaust outlet that the position is the highest is lower than the top of described fire grate.
The fire grate below arranges the elongate passage, described passage is used for downwards by the lime-ash that leaks down from described hole, upwards passing through air, thereby the heat that the downward lime-ash of absorption of air is upwards carried improves the temperature that enters the air in the body of heater, to accelerate pyrolysis rate.Fill up whole passage in the process that lime-ash moves down in described passage.
Pyrolysis produces gas from the top discharge of body of heater in the body of heater, and enters in the dual firing chamber.
Cavity is arranged on the motor-driven turning cylinder, and quantity is two, is in the port of export of dual firing chamber, the output of pipeline respectively, transposition when cavity rotates.In each cavity ceramic bead is housed, is used for absorbing the heat of the gas of discharging dual firing chamber, and be used for the air before heating enters body of heater, dual firing chamber.Air after the heating enters sidepiece in the described body of heater, enters in the dual firing chamber by described 6 wind-distributing pipe roads from bottom of furnace body respectively.
Temperature element adopts temperature sensor, and judging unit and control module all adopt circuit to realize.Temperature threshold is set to 200 degree.
By described cavity, another part leads to waste heat boiler from the part of the flue gas of dual firing chamber output.
Valve is set, is used for controlling respectively by described passage and enters air mass flow in the body of heater, enter air mass flow in the body of heater by described wind-distributing pipe road, make that the garbage disposal in the described pyrolysis oven is in optimum Working.
Embodiment 4:
Refuse pyrolysis incinerator and the application examples of method of work in the industrial refuse pyrolyzing, gasifying and incinerating according to embodiment 1.
Fig. 6 has schematically provided the structure diagram of the pyrolytic incineration device of present embodiment, shown in 6, body of heater 3 is fixed, in order to adapt to fixed body of heater 3, the passage 2 that feeds intake between feed bin 1 and the body of heater 3 works in rotating manner, and the longitudinal axis conllinear of feed bin 1 and body of heater 3.The feed intake input and 1 movable airtight connection of feed bin of passage 2, output is in the top of described body of heater 3.The input of passage that is communicated with the inside of described body of heater 3 and dual firing chamber is arranged on the sidepiece of described body of heater 3.
Fig. 7 has schematically provided the vertical view of the sealing device of present embodiment, and shown in 7, the output of the passage 2 that feeds intake is fixedly installed on the rotary part 10 (as rolling disc), and rotary part 10 is installed in furnace roof, covers whole furnace roof; Drive unit 11 is arranged on the body of heater as motor, be used for to drive described rotary part 10 and rotates, thereby make the feed intake output of passage 2 rotate around the longitudinal axis of body of heater, and output described in the rotation process is communicated with described body of heater is interior; For in isolated extraneous and the body of heater, between the edge of described rotary part and body of heater and feed intake and between passage input and bin outlet sealing unit is set, as water seal arrangement.Water seal arrangement is the state of the art, does not repeat them here.
Fire grate below arranges passage, and described passage is used for downwards by the lime-ash that leaks down from described hole, upwards by air, thereby the heat that the downward lime-ash of absorption of air is upwards carried improves the temperature that enters the air in the body of heater, to accelerate pyrolysis rate.The folding shape plate that tilts to install also is set, to improve the travel path length of air in the described passage.Lime-ash is full of passage in the process by passage.
Fixed body of heater gas inside is discharged from the sidepiece of body of heater 3, is entered in the dual firing chamber 6 by passage 5.
The exhaust outlet of air-distribution device is arranged on the furnace wall of bottom of furnace body, and 8 exhaust outlets are set to symmetry, and highly is lower than the most significant end of fire grate.
Temperature element adopts temperature sensor, and judging unit and control module all adopt software to realize.Temperature threshold is set to 180 degree.
By described cavity, another part leads to waste heat boiler from the part of the flue gas of dual firing chamber output.
Embodiment 5:
Pyrolytic incineration device and the application examples of method of work in the industrial refuse pyrolyzing, gasifying and incinerating according to embodiment 1.
Fig. 8 has schematically provided the structure diagram of the pyrolytic incineration device of present embodiment, and shown in 8, the structure of feed bin 1 is: the dovetail groove rotation forms, and cross section is annular, and the longitudinal section is " W " shape, and the bottom is annular, the longitudinal axis conllinear of feed bin 1 and body of heater 3.The passage 2 that feeds intake is tubulars, input and movable airtight connection of the bottom of feed bin 1, and output connects body of heater 3.
Fig. 9 has schematically provided the vertical view of the sealing device of present embodiment, and shown in 9, the output of the passage 2 that feeds intake is fixed on and is arranged on the rotary part 10, and rotary part is circular, is installed in the inner ring of furnace roof; Drive unit 11 is arranged on furnace roof top as motor, be used for to drive described output and rotates, thereby make the feed intake output of passage 2 rotate around the longitudinal axis of body of heater, and output described in the rotation process is communicated with described body of heater is interior; Connect body of heater 3 gas passages 5 interior and dual firing chamber and be fixedly installed on the top of body of heater 3, and be in the periphery of described rotary part 10.For in isolated extraneous and the body of heater, between described rotary part 10 and body of heater 3, feeding intake arranges sealing unit between passage input and the bin outlet, as water seal arrangement.Water seal arrangement is the state of the art, does not repeat them here.
Fixed body of heater gas inside is discharged from the top of body of heater 3, and enters in the dual firing chamber 6.
The exhaust outlet of air-distribution device is arranged on the furnace wall of bottom of furnace body, and 8 exhaust outlets are set to symmetry, and highly is lower than the most significant end of fire grate.
The fire grate below arranges passage, described passage is used for downwards by the lime-ash that leaks down from described hole, upwards passing through air, thereby the heat that the downward lime-ash of absorption of air is upwards carried improves the temperature that enters the air in the body of heater, to accelerate pyrolysis, flame mechanism.The folding shape plate that tilts to install also is set, to improve the travel path length of air in the described passage.Lime-ash is full of passage in the folding process in passage.
Temperature element adopts temperature sensor, and judging unit and control module all adopt software to realize.Temperature threshold is set to 180 degree.
By described cavity, another part leads to waste heat boiler from the part of the flue gas of dual firing chamber output.
In the above-described embodiments, have the two-way air to enter body of heater inside, wherein one road air enters into body of heater inside after heating through cavity, and another road air enters body of heater inside by fire grate.By control by entering road air in the described body of heater behind the described cavity, entering the flow of another road air in the described body of heater by fire grate, make to feed the requirement that the interior air mass flow of described body of heater satisfies garbage disposal speed feasible 1.02-1.1 times of being in completing combustion required air quantity in the dual firing chamber by the air mass flow that enters described dual firing chamber behind the described cavity.Concrete flow method of adjustment is prior art, as realizing by control valve.
Claims (16)
1. refuse pyrolysis incinerator, described pyrolytic incineration device comprises feed bin, the passage that feeds intake, vertical body of heater, fire grate and dual firing chamber; It is characterized in that: described pyrolytic incineration device further comprises:
At least two cavitys, described at least two cavitys are arranged on the outlet side of described dual firing chamber; Inside or sidepiece at described at least two cavitys arrange heat accumulating;
Pipeline, the input of described pipeline is communicated with any in described at least two cavitys, and output is communicated with described body of heater inside;
Drive unit, described drive unit be used for to drive described at least two cavity translations or rotation, make in described two cavitys that another cavity was communicated with the input of described pipeline when any was communicated with described dual firing chamber at least;
Passage, described passage is arranged on the below of described fire grate, be used for downwards by leaking down from described fire grate lime-ash, upwards pass through air.
2. pyrolytic incineration device according to claim 1 is characterized in that: the folding shape plate that tilts to install is set in the described passage.
3. pyrolytic incineration device according to claim 1, it is characterized in that: described pyrolytic incineration device further comprises:
Temperature element, described temperature element be for detection of the temperature of the lime-ash of discharging described passage, and be sent to judging unit;
Judging unit, the temperature of described judging unit comparison temperature threshold, described lime-ash, judged result is sent to control module;
Control module, described control module are controlled the flow of the air that leads to described passage according to described judged result.
4. pyrolytic incineration device according to claim 1 is characterized in that: the vertical body of heater of described pyrolytic incineration device is fixing body of heater, and described pyrolytic incineration device further comprises:
The output that mobile device, described mobile device be used for to drive the described passage that feeds intake rotates at the furnace roof of the fixed body of heater longitudinal axis along described body of heater, output and described body of heater internal communication described in rotate;
Sealing device, described sealing device are used for making the described passage input that feeds intake, output keep airtight with described bin outlet, body of heater respectively at rotation process and be connected.
5. pyrolytic incineration device according to claim 4, it is characterized in that: described sealing device comprises:
Rotary part, described output is arranged on this rotary part regularly, and with described body of heater in be communicated with;
Sealing unit, described sealing unit is arranged between described rotary part and the body of heater.
6. pyrolytic incineration device according to claim 1, it is characterized in that: described pyrolytic incineration device further comprises:
Air-distribution device, described air-distribution device is used for providing gas, and this gas feeds the interior marginal portion of described body of heater by exhaust outlet symmetry ground, and the output of described pipeline is communicated with described exhaust outlet.
7. pyrolytic incineration device according to claim 6, it is characterized in that: the exhaust outlet of described air-distribution device is arranged on the furnace wall of fixed body of heater.
8. pyrolytic incineration device according to claim 6, it is characterized in that: described air-distribution device comprises at least four wind-distributing pipe roads, described at least four wind-distributing pipe roads are arranged on the described fire grate and extend upward, and arbitrary wind-distributing pipe road is provided with at least one exhaust outlet.
9. pyrolytic incineration device according to claim 6, it is characterized in that: the height of described exhaust outlet is lower than the top of described fire grate.
10. pyrolytic incineration device according to claim 1, it is characterized in that: described at least two cavitys are arranged on cursor or the track.
11. pyrolytic incineration device according to claim 1 is characterized in that: another output of described pipeline is communicated with dual firing chamber.
12. the method for work of a refuse pyrolysis incinerator, described method of work may further comprise the steps:
(A1) rubbish in the feed bin enters into pyrolysis in the body of heater by the passage that feeds intake;
Lime-ash in the body of heater is discharged by fire grate, passage, and air passes described passage, fire grate and enters in the described body of heater, fills up lime-ash in the described passage;
(A2) gas that pyrolysis produces in the body of heater feeds dual firing chamber's internal combustion;
(A3) gas of discharging in described dual firing chamber is by any the also discharge at least two cavitys, and the heat accumulating of inside cavity or sidepiece gathers heat;
Air afterwards enters described body of heater in by one of other cavity in described two cavitys at least;
(A4) described at least two cavitys of drive unit driving move, cavity after making air by the accumulation heat that shifts out dual firing chamber's port of export, enter after being heated in the described body of heater, in other cavity one then moves to the port of export of described dual firing chamber and is communicated with dual firing chamber.
13. method of work according to claim 12 is characterized in that: in step (A3), an air that passes through of other cavity from described at least two cavitys also leads to dual firing chamber.
14. method of work according to claim 12 is characterized in that: described method of work further may further comprise the steps:
(B1) record the temperature of the lime-ash of discharging described passage, and be sent to judging unit;
(B2) temperature of judging unit comparison temperature threshold, lime-ash, judged result is sent to control module;
(B3) control module is controlled the flow of the air that leads to described passage according to judged result:
If described ash temperature is lower than described temperature threshold, reduce towards the flow of the air of described passage;
If described ash temperature is higher than described temperature threshold, increase the flow of the air that leads to described passage.
15. method of work according to claim 12, it is characterized in that: by entering road air in the described body of heater behind the described cavity, entering the flow of another road air in the described body of heater by fire grate, make the air mass flow sum that feeds in the described body of heater satisfy the needs of setting garbage disposal speed by control.
16. method of work according to claim 12 is characterized in that: by control, feasible 1.02-1.1 times of being in the amount of completing combustion required air in the dual firing chamber by the air mass flow that enters described dual firing chamber behind the described cavity.
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| CN201310255724.6A CN103335315B (en) | 2013-06-18 | 2013-06-18 | Refuse pyrolysis incinerator and method of work thereof |
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| CN201310255724.6A CN103335315B (en) | 2013-06-18 | 2013-06-18 | Refuse pyrolysis incinerator and method of work thereof |
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| CN103335315B (en) | 2015-09-23 |
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