CN213207870U - Dual-pyrolysis incineration treatment system for tar residues - Google Patents
Dual-pyrolysis incineration treatment system for tar residues Download PDFInfo
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- CN213207870U CN213207870U CN202021265203.0U CN202021265203U CN213207870U CN 213207870 U CN213207870 U CN 213207870U CN 202021265203 U CN202021265203 U CN 202021265203U CN 213207870 U CN213207870 U CN 213207870U
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 124
- 239000011273 tar residue Substances 0.000 title claims abstract description 85
- 238000010438 heat treatment Methods 0.000 claims abstract description 58
- 239000002918 waste heat Substances 0.000 claims abstract description 39
- 239000011269 tar Substances 0.000 claims abstract description 25
- 230000004913 activation Effects 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 101
- 239000003546 flue gas Substances 0.000 claims description 101
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 46
- 229910052799 carbon Inorganic materials 0.000 claims description 16
- 238000003763 carbonization Methods 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 13
- 239000000571 coke Substances 0.000 claims description 11
- 230000009977 dual effect Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 2
- 239000013049 sediment Substances 0.000 abstract description 15
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000011280 coal tar Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
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Abstract
The utility model discloses a tar residue double-pyrolysis incineration treatment system, which comprises a feeding system, a dry distillation system, an incineration system and a waste heat utilization system; the dry distillation system comprises a tar residue preheating box, a vertical double-pyrolysis dry distillation furnace and a paddle type cooling machine; the vertical double-pyrolysis dry distillation furnace comprises a furnace body shell which is vertically arranged, a tar residue inlet which is arranged at the center of the top of the furnace body shell, an upper heating box body and a lower heating box body which are vertically arranged at the center of an inner cavity of the furnace body shell and are adjacently connected up and down, wherein the bottom of the furnace body shell is provided with a section of activation cavity, a low-temperature dry distillation section space is formed between the furnace body shell and the upper heating box body, an annular heating cavity is arranged at the position, corresponding to the lower heating box body, on the furnace body shell, and a high-temperature dry distillation section space is formed between the annular heating; the upper heating box body is a conical box body with a small upper end and a large lower end, and the top of the conical box body is concave; the utility model discloses a harmless, resourceization, minimizing of tar sediment utilizes.
Description
Technical Field
The utility model relates to a coal technical field, concretely relates to tar residue dual pyrolysis incineration disposal system.
Background
In the tar separator, the tar and the coal dust at the lowest layer are the tar residue. Coal tar residue contains a large amount of aromatic organic matters, and the dangerous waste number of the coal tar residue is HW11 according to 2016 'national hazardous waste record'.
Because most of the coal tar slag is coal ash and a small part is tar, the coal tar slag is often used as waste to be stacked in a factory to form a kind of industrial waste slag which is difficult to treat.
In view of the above environmental problems of tar residue, it is necessary to develop a treatment technique for tar residue to achieve harmless, recycling and quantitative reduction of coal tar residue.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tar sediment dual thermolysis incineration disposal system to the difficult technical problem that the tar sediment is difficult to handle among the prior art, its main technical route is through carrying out the dry distillation carbonization and activation to the tar sediment, generates dry distillation gas, active carbon and steam, realizes innoxious, resourceization, the minimizing utilization of tar sediment. The specific technical scheme is as follows:
a tar residue double-pyrolysis incineration treatment system comprises a feeding system, a dry distillation system, an incineration system and a waste heat utilization system;
wherein the feeding system comprises a delivery pump;
the dry distillation system comprises a tar residue preheating box, a vertical double-pyrolysis dry distillation furnace and a blade type cooling machine which are sequentially arranged from top to bottom according to the treatment flow of the tar residue; the vertical double-pyrolysis dry distillation furnace comprises a furnace body shell which is vertically arranged, a tar residue inlet which is arranged at the center of the top of the furnace body shell, an upper heating box body and a lower heating box body which are vertically arranged at the center of an inner cavity of the furnace body shell and are adjacently connected up and down, wherein a section of activation cavity is arranged at the bottom of the furnace body shell, a low-temperature dry distillation section space is formed between the furnace body shell and the upper heating box body, an annular heating cavity is arranged on the furnace body shell at a position corresponding to the lower heating box body, and a high-temperature dry distillation section space is formed between the annular heating cavity and the lower heating box body; the upper heating box body is a conical box body with a small upper end and a large lower end, and the top of the conical box body is concave;
the charging system conveys the tar residues to the tar residue preheating box through a conveying pump, the tar residues are preheated into fluid through the tar residue preheating box and then conveyed to the top of a conical box body in the vertical double-pyrolysis dry distillation furnace, the fluid is gathered at the concave part of the top of the conical box body and then overflows to the periphery to enter a low-temperature dry distillation section, the fluid flows downwards uniformly along the surface of the conical box body, and the low-temperature heating carbonization of the low-temperature dry distillation section is completed in the flow; after the low-temperature carbonization is finished, the residual fixed carbon enters a high-temperature carbonization section, the slag is carbonized into coke through high-temperature heating, and then the coke enters an activation cavity filled with steam and is activated to form activated carbon; cooling the activated carbon in a paddle type cooler to form an activated carbon finished product;
the burning system comprises a burning furnace and a high-temperature flue gas channel which is arranged at the periphery of the furnace body shell and connected with the burning furnace, dry distillation gas in the vertical double-pyrolysis dry distillation furnace enters the burning furnace through a pipeline and is burnt into high-temperature flue gas, and the high-temperature flue gas enters the annular heating cavity and the inner cavity of the lower heating box body through the high-temperature flue gas channel respectively to become a heat source of a high-temperature dry distillation section;
the waste heat utilization system comprises a waste heat boiler, a low-temperature flue gas inlet and a cold flue gas outlet which are arranged on the waste heat boiler, a flue gas output pipeline which is arranged at the top of the inner cavity of the conical box and connected with the low-temperature flue gas inlet of the waste heat boiler, and a low-temperature flue gas channel which is arranged on the periphery of the outer shell of the furnace body and connected with the cold flue gas outlet of the waste heat boiler, wherein the high-temperature flue gas channel is also connected with the cold flue gas inlet of the low-temperature flue gas channel, and the cold flue gas of the waste heat boiler and the high-temperature flue gas of the high-temperature flue gas channel are mixed at the cold flue gas inlet and then enter the inner cavity of the lower heating box through the.
As a preferred scheme, the utility model discloses a two pyrolytic incineration disposal system of tar sediment still includes flue gas emission processing system, flue gas emission processing system includes desulphurization unit and chimney, exhaust-heat boiler's cold exhanst gas outlet still is connected to through the pipeline desulphurization unit's flue gas entry, desulphurization unit's exhanst gas outlet is connected to through pipeline and draught fan the chimney.
As a preferred scheme, the utility model discloses a two pyrolytic incineration disposal systems of tar sediment still includes visual monitored control system, visual monitored control system is including being in respectively a plurality of control points that set up on feeding system, dry distillation system, the system of burning, the waste heat utilization system.
The utility model discloses in the top spill department of toper box is provided with the flute profile groove in order to make things convenient for the outflow of tar sediment the intercommunication has been seted up on the outer cone surface of toper box the guiding gutter in flute profile groove is in with the realization tar sediment trickles downwards in the guiding gutter and is heated the dry distillation.
The utility model discloses in, the tar residue delivery outlet of tar residue preheating cabinet passes through the pipeline and is connected with the sealed form valve of feed tar residue entry that furnace body shell top central point put.
The utility model discloses in, the tar residue preheating cabinet realizes through low pressure steam heating pipe right the preheating of tar residue.
The utility model discloses in, the lower extreme in activation chamber is provided with the active carbon delivery outlet, the active carbon delivery outlet through the sealed form valve output of feed extremely paddle formula cooler.
The utility model discloses in, exhaust-heat boiler's cold exhanst gas outlet pass through pipeline and draught fan with the cold flue gas entry of low temperature flue gas passageway is connected.
The utility model discloses in, the activation intracavity is connected with the steam spray tube that is used for becoming the active carbon with the coke activation after the pyrolysis, the steam spray tube with exhaust-heat boiler's steam pipe is connected.
The utility model discloses in, exhaust-heat boiler's steam pipe is output connection to steam pipe network still.
The process flow for treating the medium tar residue of the utility model is as follows:
(1) the tar residue flow comprises the following steps:
and (3) conveying the tar residues into a tar residue preheating box through a pumping system, introducing low-pressure steam at the temperature of 130-150 ℃ into the tar residue preheating box, heating the tar residues to 150 ℃, and conveying the tar residues into the vertical double-pyrolysis dry distillation furnace through a quantitative feeding valve (a feeding sealing grid valve) when the tar residues have good fluidity. The core dry distillation module of the vertical double-pyrolysis dry distillation furnace is a conical box body, a flue gas heating cavity is arranged in the conical box body, the top of the conical box body is concave, tar residues are gathered at the concave part of the top and then overflow to the periphery, and the tar residues flow downwards uniformly on the surface of the box body and are heated, dry distilled and carbonized in the flow. The tar residue is heated to 400-500 ℃ in a low-temperature dry distillation section, water and tar in the tar residue are removed after dry distillation, and the working pressure is 0.1-0.3 MPa. And after the dry distillation is basically finished, the residual fixed carbon enters a high-temperature dry distillation section, the high-temperature dry distillation section is continuously heated to 600-900 ℃, the slag is carbonized into coke, and steam is introduced for activation to produce the active carbon.
(2) Flue gas flow:
the generated dry distillation gas and the water gas generated by activation are led out of the vertical double-pyrolysis dry distillation furnace to the combustion furnace during dry distillation, and the high-temperature flue gas generated by combustion is controlled at about 900 ℃ and enters the high-temperature dry distillation section of the vertical double-pyrolysis dry distillation furnace. The temperature of high-temperature flue gas from the high-temperature carbonization section is about 800 ℃, the high-temperature flue gas is mixed with the flue gas at the outlet of the waste heat boiler and is quenched to 500-550 ℃, and the high-temperature flue gas enters the carbonization low-temperature section. The temperature of the smoke at the outlet of the low-temperature dry distillation section is 400-450 ℃, low-pressure steam of 1.3MPA is generated through waste heat recovery of a waste heat boiler, and the low-pressure steam is used for producing active carbon through steam activation and is conveyed to a steam pipe network for other equipment. The temperature of the flue gas is reduced to 130 ℃, and the flue gas is discharged from a chimney after being desulfurized by a desulphurization device.
The utility model has the advantages that:
first, the utility model discloses a two pyrolytic incineration disposal systems of tar sediment, whole scheme include charge-up system, dry distillation system, burn system and waste heat utilization system, and it generates dry distillation gas, active carbon and steam through carrying out dry distillation carbonization and activation to the tar sediment, has realized harmless, resourceization, the minimizing utilization of tar sediment.
Second, the utility model discloses a two pyrolytic incineration processing system of tar sediment, the core dry distillation module among the dry distillation system is the toper box, and inside is flue gas heating chamber, and top spill can make
The tar residues overflow from the periphery after being gathered in a concave shape at the top and flow uniformly on the surface of the box body, and the tar residues have the advantages of uniform and stable heating effect, thereby improving the effect of heating, dry distilling and carbonizing.
Third, the utility model discloses a two pyrolytic incineration processing system of tar sediment adopts two pyrolytic principles to carbonize the tar sediment to generate the active carbon through steam activation, the heat source is the high temperature flue gas that adopts the pyrolysis gas burning that generates, and activated steam is the steam that utilizes exhaust-heat boiler to retrieve the production of surplus heat, therefore the high-usage of its energy and resource.
Drawings
FIG. 1 is a schematic view of a tar residue dual pyrolysis incineration system of the present invention;
FIG. 2 is a detailed view of a portion of the vertical dual pyrolysis retort of FIG. 1.
In the figure: 1. the device comprises a furnace body shell, 2, a tar slag inlet, 3, an upper heating box body (a conical box body), 4, a lower heating box body, 5, a concave shape, 6, an annular heating cavity, 7, a low-temperature flue gas channel, 8, a high-temperature flue gas channel, 9, a cold flue gas inlet, 10, a flue gas output pipeline, 11, a dry distillation gas outlet, 12, an activation cavity, 13, a steam spray pipe, 14, an active carbon output port, 15, a tooth-shaped groove, 16, a tar slag preheating box, 17, a feeding sealing grid valve, 18, a paddle type cooler, 19, a pipeline, 20, a combustion furnace, 21, a waste heat boiler, 22, a low-temperature flue gas inlet of the waste heat boiler, 23, a cold flue gas outlet of the waste heat boiler, 24, an induced draft fan, 25, a desulfurization device, 26, a chimney, 27, a.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 2, an embodiment of a tar residue dual-pyrolysis incineration system of the present invention includes a feeding system, a dry distillation system, an incineration system and a waste heat utilization system;
wherein the feeding system comprises a delivery pump;
the dry distillation system comprises a tar residue preheating box 16, a vertical double pyrolysis dry distillation furnace and a blade type cooling machine 18 which are sequentially arranged from top to bottom according to the treatment flow of the tar residue; the vertical double-pyrolysis dry distillation furnace comprises a furnace body shell 1 which is vertically arranged, a tar residue inlet 2 which is arranged at the center of the top of the furnace body shell 1, an upper heating box body 3 and a lower heating box body 4 which are vertically arranged at the center of the inner cavity of the furnace body shell 1 and are adjacently connected up and down, wherein the bottom of the furnace body shell 1 is provided with a section of activation cavity 12, a low-temperature dry distillation section space is formed between the furnace body shell 1 and the upper heating box body 3, an annular heating cavity 6 is arranged at the position, corresponding to the lower heating box body 3, on the furnace body shell 1, and a high-temperature dry distillation section space is formed between the annular heating cavity 6 and the lower heating box body 4; the upper heating box body 3 is a conical box body with a small upper end and a large lower end, and the top of the conical box body is concave 5;
the charging system conveys the tar residues to the tar residue preheating box 16 through a conveying pump, the tar residues are preheated into fluid through the tar residue preheating box 16 and then conveyed to the top of a conical box body 3 in the vertical double-pyrolysis dry distillation furnace, the fluid is gathered at a concave part 5 at the top of the conical box body 3 and then overflows to the periphery to enter a low-temperature dry distillation section, and the fluid flows downwards uniformly along the surface of the conical box body 3, so that the low-temperature heating carbonization of the low-temperature dry distillation section is completed in the flow; after the low-temperature carbonization is finished, the residual fixed carbon enters a high-temperature carbonization section, the slag is carbonized into coke through high-temperature heating, and then the coke enters an activation cavity 12 with steam, and activated to form activated carbon; cooling the activated carbon in a paddle type cooler 18 to form a finished activated carbon product;
the incineration system comprises a combustion furnace 20 and a high-temperature flue gas channel 8 which is arranged at the periphery of the furnace body shell 1 and connected with the combustion furnace 20, dry distillation gas in the vertical double-pyrolysis dry distillation furnace enters the combustion furnace 20 through a pipeline 19 and is combusted into high-temperature flue gas, and the high-temperature flue gas enters the annular heating cavity 6 and the inner cavity of the lower heating box body 4 through the high-temperature flue gas channel 8 respectively to become a heat source of a high-temperature dry distillation section;
the waste heat utilization system comprises a waste heat boiler 21, a low-temperature flue gas inlet 22 and a cold flue gas outlet 23 which are arranged on the waste heat boiler 21, a flue gas output pipeline 10 which is arranged at the top of the inner cavity of the conical box body 3 and connected with the low-temperature flue gas inlet 22 of the waste heat boiler 21, and a low-temperature flue gas channel 7 which is arranged at the periphery of the furnace body shell 1 and connected with the cold flue gas outlet 23 of the waste heat boiler 21, wherein the high-temperature flue gas channel 8 is also connected with the cold flue gas inlet 9 of the low-temperature flue gas channel 7, and the cold flue gas of the waste heat boiler and the high-temperature flue gas of the high-temperature flue gas channel are mixed at the cold flue gas inlet 9 and then enter the inner cavity of the lower heating box body 4 through the low.
As a preferred scheme, the tar residue dual-pyrolysis incineration disposal system of this embodiment further includes a flue gas emission treatment system, the flue gas emission treatment system includes desulphurization unit 25 and chimney 26, cold flue gas outlet 23 of exhaust-heat boiler 21 is still connected to desulphurization unit 25's flue gas inlet through the pipeline, desulphurization unit 25's flue gas outlet is connected to through pipeline and draught fan 24 chimney 26.
As a preferred scheme, the dual pyrolysis incineration treatment system for tar residue of the embodiment further includes a visual monitoring system, and the visual monitoring system includes a plurality of monitoring points respectively arranged on the feeding system, the dry distillation system, the incineration system and the waste heat utilization system.
In this embodiment, a tooth-shaped groove 15 is formed in the concave part 5 at the top of the conical box 3 to facilitate outflow of the tar slag, and a diversion trench 28 communicated with the tooth-shaped groove 15 is formed on the surface of the outer cone of the conical box 3 to enable the tar slag to flow downwards in the diversion trench 28 and be heated for dry distillation.
In this embodiment, a tar residue outlet of the tar residue preheating tank 16 is connected to the tar residue inlet 2 at the top center of the furnace body casing 1 through a pipeline and a feeding sealing grid valve 17.
In this embodiment, the tar residue preheating tank 16 preheats the tar residue through a low-pressure steam heating pipe.
In this embodiment, the lower end of the activation chamber 12 is provided with an activated carbon output port 14, and the activated carbon output port 14 is output to the blade type cooler 18 through a feeding sealed format valve 17.
In this embodiment, the cold flue gas outlet 23 of the waste heat boiler 21 is connected with the cold flue gas inlet 9 of the low-temperature flue gas channel 7 through a pipeline and an induced draft fan 24.
In this embodiment, a steam nozzle 13 for activating the pyrolyzed coke into activated carbon is connected to the activation chamber 12, and the steam nozzle 13 is connected to a steam pipe 27 of the exhaust-heat boiler 21.
In this embodiment, the steam pipe 27 of the exhaust-heat boiler 21 is also output and connected to the steam pipe network.
The process flow for treating the tar residue in the embodiment is as follows:
(1) the tar residue flow comprises the following steps:
the tar residue is sent into a tar residue preheating box 16 through a pumping system, low-pressure steam with the temperature of 130-150 ℃ is introduced into the box, the tar residue is heated to 150 ℃, and the tar residue has good fluidity and is sent into the vertical double-pyrolysis dry distillation furnace through a quantitative feeding valve (a feeding sealing grid valve 17). The core dry distillation module of the vertical double pyrolytic dry distillation furnace is a conical box body 3, a flue gas heating cavity is arranged in the conical box body 3, the top of the conical box body 3 is concave 5, tar residues are gathered at the concave 5 at the top and then overflow to the periphery, and the tar residues flow downwards uniformly on the surface of the box body and are heated, dry distilled and carbonized in the flow. The tar residue is heated to 400-500 ℃ in a low-temperature dry distillation section, water and tar in the tar residue are removed after dry distillation, and the working pressure is 0.1-0.3 MPa. And after the dry distillation is basically finished, the residual fixed carbon enters a high-temperature dry distillation section, the high-temperature dry distillation section is continuously heated to 600-900 ℃, the slag is carbonized into coke, and steam is introduced for activation to produce the active carbon.
(2) Flue gas flow:
the generated dry distillation gas and the water gas generated by activation are led out of the vertical double-pyrolysis dry distillation furnace to the combustion furnace during dry distillation, and the high-temperature flue gas generated by combustion is controlled at about 900 ℃ and enters the high-temperature dry distillation section of the vertical double-pyrolysis dry distillation furnace. The temperature of high-temperature flue gas from the high-temperature carbonization section is about 800 ℃, the high-temperature flue gas is mixed with flue gas at the outlet of the waste heat boiler 21 and is quenched to 500-550 ℃, and the high-temperature flue gas enters the carbonization low-temperature section. The temperature of the flue gas at the outlet of the low-temperature dry distillation section is 400-450 ℃, low-pressure steam of 1.3MPA is generated by recovering the waste heat of the waste heat boiler 21 and is used for producing active carbon by steam activation and is conveyed to a steam pipe network for other equipment. The temperature of the flue gas is reduced to 130 ℃, and the flue gas is discharged from a chimney 26 after being desulfurized by a desulfurizer 25.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A tar residue double-pyrolysis incineration treatment system is characterized by comprising a feeding system, a dry distillation system, an incineration system and a waste heat utilization system;
the feeding system comprises a delivery pump;
the dry distillation system comprises a tar residue preheating box, a vertical double-pyrolysis dry distillation furnace and a paddle type cooling machine which are sequentially arranged from top to bottom according to the treatment flow of the tar residue; the vertical double-pyrolysis dry distillation furnace comprises a furnace body shell which is vertically arranged, a tar residue inlet which is arranged at the center of the top of the furnace body shell, an upper heating box body and a lower heating box body which are vertically arranged at the center of an inner cavity of the furnace body shell and are adjacently connected up and down, wherein a section of activation cavity is arranged at the bottom of the furnace body shell, a low-temperature dry distillation section space is formed between the furnace body shell and the upper heating box body, an annular heating cavity is arranged on the furnace body shell at a position corresponding to the lower heating box body, and a high-temperature dry distillation section space is formed between the annular heating cavity and the lower heating box body; the upper heating box body is a conical box body with a small upper end and a large lower end, and the top of the conical box body is concave;
the charging system conveys the tar residues to the tar residue preheating box through a conveying pump, the tar residues are preheated into fluid through the tar residue preheating box and then conveyed to the top of a conical box body in the vertical double-pyrolysis dry distillation furnace, the fluid is gathered at the concave part of the top of the conical box body and then overflows to the periphery to enter a low-temperature dry distillation section, and the fluid flows downwards uniformly along the surface of the conical box body, so that the low-temperature heating carbonization of the low-temperature dry distillation section is completed in the flow; after the low-temperature carbonization is finished, the residual fixed carbon enters a high-temperature carbonization section, the slag is carbonized into coke through high-temperature heating, and then the coke enters an activation cavity filled with steam and is activated to form activated carbon; cooling the activated carbon in a paddle type cooler to form an activated carbon finished product;
the burning system comprises a burning furnace and a high-temperature flue gas channel which is arranged at the periphery of the furnace body shell and connected with the burning furnace, dry distillation gas in the vertical double-pyrolysis dry distillation furnace enters the burning furnace through a pipeline and is burnt into high-temperature flue gas, and the high-temperature flue gas enters the annular heating cavity and the inner cavity of the lower heating box body through the high-temperature flue gas channel respectively so as to become a heat source of a high-temperature dry distillation section;
the waste heat utilization system comprises a waste heat boiler, a low-temperature flue gas inlet, a cold flue gas outlet, a flue gas output pipeline and a low-temperature flue gas channel, wherein the low-temperature flue gas inlet and the cold flue gas outlet are arranged on the waste heat boiler, the flue gas output pipeline is arranged at the top of the inner cavity of the conical box body and connected with the low-temperature flue gas inlet of the waste heat boiler, the low-temperature flue gas channel is arranged on the periphery of the outer shell of the boiler body and connected with the cold flue gas outlet of the waste heat boiler, the high-temperature flue gas channel is also connected with the cold flue gas inlet of the low-temperature flue gas channel, and the cold flue gas of the waste heat boiler and the high-temperature flue gas of the.
2. The tar residue dual-pyrolysis incineration treatment system according to claim 1, further comprising a flue gas emission treatment system, wherein the flue gas emission treatment system comprises a desulfurization device and a chimney, a cold flue gas outlet of the waste heat boiler is further connected to a flue gas inlet of the desulfurization device through a pipeline, and a flue gas outlet of the desulfurization device is connected to the chimney through a pipeline and an induced draft fan.
3. The tar residue double-pyrolysis incineration treatment system according to claim 1, further comprising a visual monitoring system, wherein the visual monitoring system comprises a plurality of monitoring points respectively arranged on the feeding system, the dry distillation system, the incineration system and the waste heat utilization system.
4. The dual pyrolytic incineration system of tar residues according to claim 1, wherein a tooth-shaped groove is formed at a concave part of the top of the conical box body to facilitate outflow of tar residues, and a diversion trench communicated with the tooth-shaped groove is formed on the surface of the outer cone of the conical box body to realize downward flowing of the tar residues in the diversion trench and heating and dry distillation.
5. The dual pyrolytic incineration processing system of tar residue according to claim 1, wherein the tar residue output port of the tar residue preheating tank is connected with the tar residue inlet at the center of the top of the furnace body shell through a pipeline and a feeding sealing grid valve.
6. The dual pyrolytic incineration processing system of tar residue according to claim 1, wherein the tar residue preheating tank realizes preheating of the tar residue through a low pressure steam heating pipe.
7. The tar residue double-pyrolysis incineration treatment system according to claim 1, wherein an activated carbon output port is arranged at the lower end of the activation chamber, and the activated carbon output port is output to the paddle cooler through a feed sealing format valve.
8. The tar residue dual-pyrolysis incineration treatment system according to claim 1, wherein a cold flue gas outlet of the waste heat boiler is connected with a cold flue gas inlet of the low-temperature flue gas channel through a pipeline and an induced draft fan.
9. The dual-pyrolysis incineration treatment system for the tar slag according to claim 1, wherein a steam spray pipe for activating and treating the pyrolyzed coke into the activated carbon is connected in the activation cavity, and the steam spray pipe is connected with a steam pipe of the waste heat boiler.
10. The dual pyrolysis incineration system of the tar residue according to claim 9, wherein the steam pipe of the exhaust-heat boiler is further connected to a steam pipe network.
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| CN202021265203.0U CN213207870U (en) | 2020-07-02 | 2020-07-02 | Dual-pyrolysis incineration treatment system for tar residues |
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| CN202021265203.0U CN213207870U (en) | 2020-07-02 | 2020-07-02 | Dual-pyrolysis incineration treatment system for tar residues |
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