CN213172226U - Medium-low temperature carbonization coal gas dust removal system for horizontal type rotary carbonization furnace - Google Patents
Medium-low temperature carbonization coal gas dust removal system for horizontal type rotary carbonization furnace Download PDFInfo
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- CN213172226U CN213172226U CN202021328240.1U CN202021328240U CN213172226U CN 213172226 U CN213172226 U CN 213172226U CN 202021328240 U CN202021328240 U CN 202021328240U CN 213172226 U CN213172226 U CN 213172226U
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Abstract
The utility model discloses a well low temperature dry distillation coal gas dust pelletizing system for horizontal gyration gas retort, including horizontal gyration gas retort, scrubbing tower, control system, still include high temperature cyclone, the entry end of high temperature cyclone pass through first pipeline with raw coke oven gas air duct on the horizontal gyration gas retort is connected, the upper portion of high temperature cyclone passes through the second pipeline and is connected with the scrubbing tower, high temperature cyclone lower part is equipped with the ash valve, the ash valve is connected with control system; the utility model discloses utilize in the high temperature cyclone dust collecting equipment of high temperature gas filtration dust, filter the back with a large amount of dusts in the raw coke oven gas at the high temperature stage, rethread raw coke oven gas pipeline carries to next procedure and carries out desulfurization, purification, reduces the load of later stage process.
Description
Technical Field
The utility model belongs to the technical field of the coal chemical industry, concretely relates to well low temperature dry distillation coal gas dust pelletizing system for horizontal gyration gas retort.
Background
Red flame coal is subjected to middle-low temperature dry distillation in a horizontal rotary dry distillation furnace to decompose a large amount of raw gas, the raw gas can be put into use after desulfurization and purification processes, the red flame coal is heated and rotated in the rotary dry distillation furnace in actual production, part of dust mixed with the raw gas is conveyed to the next process through a pipeline in the raw gas guiding process, and the dust content in the gas is higher than that of an upright furnace using lump coal because the used coal is pulverized coal, so that the dust mixed with the raw gas can be gradually deposited in a raw gas conveying pipeline on one hand, and the conveying pipeline is blocked due to long-time operation; on the other hand, the dust content in the raw gas greatly increases the cost and difficulty of the purification process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a well low temperature dry distillation coal gas dust pelletizing system for horizontal gyration gas retort to solve the problem that dust in the crude gas deposits easily in the crude gas pipeline and leads to pipeline to block up in the current.
In order to achieve the above object, the utility model adopts the following technical scheme: the medium-low temperature dry distillation coal gas dust removal system for the horizontal rotary retort comprises the horizontal rotary retort, a water washing tower, a control system and a high-temperature cyclone dust collector, wherein the inlet end of the high-temperature cyclone dust collector is connected with a raw gas guide pipe on the horizontal rotary retort through a first pipeline, the upper part of the high-temperature cyclone dust collector is connected with the water washing tower through a second pipeline, an ash discharge valve is arranged at the lower part of the high-temperature cyclone dust collector, and the ash discharge valve is connected with the control system.
Further, still include the aqueous ammonia and spray the valves, the aqueous ammonia sprays the valves and comprises a plurality of aqueous ammonia pipelines, ball valve and aqueous ammonia shower nozzle, and the aqueous ammonia passes through the aqueous ammonia shower nozzle and gets into the second pipeline.
The high-temperature cyclone dust collector further comprises a heat tracing system, wherein the heat tracing system comprises a heat tracing smoke jacket, a heat tracing smoke inlet and a heat tracing smoke outlet, the heat tracing smoke inlet is arranged at the inlet part of the first pipeline, the heat tracing smoke outlet is arranged at the discharge end of the high-temperature cyclone dust collector, and the heat tracing smoke jacket is arranged in the first pipeline.
Furthermore, the discharge end of the high-temperature cyclone dust collector is also provided with a high material level meter and a low material level meter, and the high material level meter and the low material level meter are respectively connected with a control system.
Furthermore, a cyclone dust removal inlet valve and a cyclone dust removal outlet valve are respectively arranged on the first pipeline and the second pipeline, and the cyclone dust removal inlet valve and the cyclone dust removal outlet valve are respectively connected with the control system.
The utility model has the advantages that: the high-temperature cyclone dust removal equipment for filtering dust from high-temperature gas is used for filtering a large amount of dust in raw gas at a high-temperature stage, then conveying the raw gas to the next procedure through a raw gas conveying pipeline for desulfurization and purification, so that the load of the later procedure is reduced, a heat tracing system carries out heat tracing on a high-temperature cyclone dust collector and a first pipeline by using flue gas for heating a rotary retort furnace, the normal operation of the high-temperature cyclone dust collector is ensured, and the phenomenon that low-temperature coal tar is condensed in the high-temperature cyclone dust collector and the first pipeline to block the pipeline is prevented.
Drawings
FIG. 1 is a schematic view of a medium and low temperature dry distillation coal gas dust removal system for a horizontal rotary dry distillation furnace.
In the figure: 1. a horizontal rotary retort; 2. a raw gas guide pipe; 3. a heat tracing flue gas inlet; 4. a heat tracing smoke jacket; 5. a first conduit; 6. a cyclone dust removal inlet valve; 7. crude gas flow direction indication; 8. a high temperature cyclone; 9. a high level gauge; 10. a low level indicator; 11. a heat tracing smoke outlet; 12. a second conduit; 13. an ammonia water spraying valve group; 14. an ash discharge valve; 15. a cyclone dust removal outlet valve; 16. and (5) washing the tower with water.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the medium and low temperature dry distillation coal gas dust removal system for the horizontal rotary dry distillation furnace comprises a horizontal rotary dry distillation furnace 1, a high temperature cyclone dust collector 8, a water scrubber 16 and a control system, the raw gas guide tube 2 of the horizontal rotary retort 1 is connected with the inlet end of a high-temperature cyclone dust collector 8 through a first pipeline 5, the air outlet of the high-temperature cyclone dust collector 8 is connected with a water washing tower 16 through a second pipeline 12, an ash discharge valve 14 is arranged at the discharge end of the high-temperature cyclone dust collector 8, the ash discharge valve 14 is connected with a control system, the discharge end of the high-temperature cyclone dust collector 8 is also provided with a high material level meter 9 and a low material level meter 10, high charge level indicator 9, low charge level indicator 10 are connected with control system respectively, and high charge level indicator 9, low charge level indicator 10 and ash valve 14 interlock, and ash valve 14 operation is arranged to ash valve 14 during high charge level, and ash valve 14 stops when low charge level.
Still include aqueous ammonia spraying valves 13, aqueous ammonia spraying valves 13 comprises aqueous ammonia pipeline, ball valve and aqueous ammonia shower nozzle, and the aqueous ammonia passes through the aqueous ammonia shower nozzle and gets into second pipeline 12, cools down coal gas.
The high-temperature cyclone dust collector is characterized by further comprising a heat tracing system, wherein the heat tracing system comprises a heat tracing flue gas jacket 4, a heat tracing flue gas inlet 3 and a heat tracing flue gas outlet 11, the heat tracing flue gas inlet 3 is arranged at the inlet part of the first pipeline 5, the heat tracing flue gas outlet 11 is arranged at the discharge end of the high-temperature cyclone dust collector 8, the heat tracing flue gas jacket 4 is arranged in the first pipeline 5, flue gas for heating of the rotary retort is utilized to carry out heat tracing on the high-temperature cyclone dust collector 8 and the first pipeline 5, the normal operation of the high-temperature cyclone dust collector 8 is ensured, and low-temperature coal tar is prevented from being condensed in the high-temperature cyclone dust collector 8 and the first pipeline 5 to block the pipeline.
The first pipeline 5 and the second pipeline 12 are respectively provided with a cyclone dust removal inlet valve 6 and a cyclone dust removal outlet valve 15, the cyclone dust removal inlet valve 6 and the cyclone dust removal outlet valve 15 are respectively connected with a control system, and the cyclone dust removal inlet valve 6 and the cyclone dust removal outlet valve 15 can reliably cut off a high-temperature cyclone dust collector and the system.
The utility model discloses a theory of operation does: raw gas of 300-400 ℃ guided out by the rotary retort furnace enters a high-temperature cyclone dust collector 8 through a first pipeline 5, the raw gas is subjected to cyclone separation in the high-temperature cyclone dust collector 8, the raw gas and dust are effectively separated, the separated dust falls into an ash hopper of the high-temperature cyclone dust collector 8, and the deposited dust is conveyed to a cooling device through an ash valve 14 for cooling after the deposition amount of the dust reaches the discharge standard and is conveyed to the next process through a belt conveyor; the raw gas after dust removal is conveyed to a water washing tower 16 through a raw gas outlet pipeline 12, and is sent to the next procedure for further desulfurization and purification after being washed by water.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A medium and low temperature dry distillation coal gas dust removal system for a horizontal rotary dry distillation furnace comprises the horizontal rotary dry distillation furnace, a water washing tower and a control system, and is characterized in that: the horizontal type rotary gas retort is characterized by further comprising a high-temperature cyclone dust collector (8), wherein the inlet end of the high-temperature cyclone dust collector (8) is connected with a raw gas guide pipe (2) on the horizontal type rotary gas retort (1) through a first pipeline (5), the upper portion of the high-temperature cyclone dust collector (8) is connected with a water washing tower (16) through a second pipeline (12), an ash discharge valve (14) is arranged on the lower portion of the high-temperature cyclone dust collector (8), and the ash discharge valve (14) is connected with a control system.
2. The medium and low temperature dry distillation coal gas dust removal system for the horizontal rotary dry distillation furnace according to claim 1, wherein: still include aqueous ammonia and spray valves (13), aqueous ammonia sprays valves (13) and comprises a plurality of aqueous ammonia pipelines, ball valve and aqueous ammonia shower nozzle, and the aqueous ammonia passes through the aqueous ammonia shower nozzle and gets into second pipeline (12).
3. The medium and low temperature dry distillation coal gas dust removal system for the horizontal rotary dry distillation furnace according to claim 1 or 2, wherein: the heat tracing system comprises a heat tracing flue gas jacket (4), a heat tracing flue gas inlet (3) and a heat tracing flue gas outlet (11), wherein the heat tracing flue gas inlet (3) is arranged at the inlet part of the first pipeline (5), the heat tracing flue gas outlet (11) is arranged at the discharge end of the high-temperature cyclone dust collector (8), and the heat tracing flue gas jacket (4) is arranged in the first pipeline (5).
4. The medium and low temperature dry distillation coal gas dust removal system for the horizontal rotary dry distillation furnace according to claim 3, wherein: the high-temperature cyclone dust collector (8) is characterized in that a high material level meter (9) and a low material level meter (10) are further arranged at the discharge end of the high-temperature cyclone dust collector, and the high material level meter (9) and the low material level meter (10) are respectively connected with a control system.
5. The medium and low temperature dry distillation coal gas dust removal system for the horizontal rotary dry distillation furnace according to claim 4, wherein: and the first pipeline (5) and the second pipeline (12) are respectively provided with a cyclone dust removal inlet valve (6) and a cyclone dust removal outlet valve (15), and the cyclone dust removal inlet valve (6) and the cyclone dust removal outlet valve (15) are respectively connected with a control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021328240.1U CN213172226U (en) | 2020-07-08 | 2020-07-08 | Medium-low temperature carbonization coal gas dust removal system for horizontal type rotary carbonization furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021328240.1U CN213172226U (en) | 2020-07-08 | 2020-07-08 | Medium-low temperature carbonization coal gas dust removal system for horizontal type rotary carbonization furnace |
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| Publication Number | Publication Date |
|---|---|
| CN213172226U true CN213172226U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021328240.1U Active CN213172226U (en) | 2020-07-08 | 2020-07-08 | Medium-low temperature carbonization coal gas dust removal system for horizontal type rotary carbonization furnace |
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| CN (1) | CN213172226U (en) |
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2020
- 2020-07-08 CN CN202021328240.1U patent/CN213172226U/en active Active
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