CN218860656U - Water circulation system for catalytic gasification - Google Patents
Water circulation system for catalytic gasification Download PDFInfo
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- CN218860656U CN218860656U CN202222805673.7U CN202222805673U CN218860656U CN 218860656 U CN218860656 U CN 218860656U CN 202222805673 U CN202222805673 U CN 202222805673U CN 218860656 U CN218860656 U CN 218860656U
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Abstract
The utility model discloses a catalytic gasification's water circulating system, including thin liquid jar, thin liquid pump, gas-water separation unit, high-pressure pump, row's sediment unit, submergence dust remover, coarse coal gas cooling unit, chilling unit, dragveyer, sediment stuff pump and pressure filter. Has the advantages that: 1. during the furnace drying period, the dilute water tank directly supplies water to the immersed dust remover, and spray water in the immersed dust remover is directly discharged into the slag conveyor, so that the water circulation amount during the furnace drying period is reduced; 2. the gas-water separation unit removes impurities such as ammonia, dust, tar and the like in the circulating water, reduces the solid content and the ammonia content in the circulating water, improves the water quality of the circulating water, greatly reduces the failure rate of each device in a water circulation system, and improves the safety of a production site; 3. ground washing water collected by the ground groove is used as water supplement of the water circulation system, so that the utilization rate of water resources is improved; 4. through set up the buffer memory knockout drum in immersion dust remover bottom, effectively avoided the jam of immersion dust remover sewage pipes.
Description
The technical field is as follows:
the utility model relates to a catalytic gasification hydrologic cycle technical field especially relates to a catalytic gasification's water circulating system.
Background art:
the crude gas generated by catalytic coal gasification contains small-particle fly ash, tar and other impurities, a large amount of water is consumed in the process of purifying the crude gas, and in order to improve the utilization rate of water resources, the catalytic coal gasification adopts a water recycling mode in the process of starting. The traditional water circulation system directly conveys water in a geosyncline to a gas-water separation unit, the main source of the geosyncline water is pre-dried black water in a catalyst recovery section, the solid particle content is high, the water quality is poor, and the solid content in the circulating water filtered by a filter press is still high, so that the failure rate of equipment in the water circulation system, particularly a water pump, is increased, and the smooth production is seriously influenced; after the water circulation of the deslagging unit, the water temperature is high, the water quality is poor, and the ammonia content exceeds the standard, so that the volatilization amount of ammonia of subsequent circulating water treatment equipment is large, the production environment is further poor, and potential safety hazards exist.
The utility model has the following contents:
the utility model aims to provide a water circulation system for catalytic gasification, which comprises a thin liquid tank, a thin liquid pump, a gas-water separation unit, a high-pressure pump, a slag discharge unit, an immersion dust remover, a crude gas cooling unit, a chilling unit, a slag dragging machine, a slag slurry pump and a filter press;
the outlet of the dilute liquid tank is communicated with the inlet of the dilute liquid pump through a pipeline, the outlet of the dilute liquid pump is communicated with the inlet of the chilling unit through a pipeline, the outlet of the chilling unit is communicated with the liquid inlet of the slag discharging unit through a pipeline, the liquid outlet of the slag discharging unit is communicated with the feeding hole of the slag salvaging machine through a pipeline, the liquid outlet of the slag salvaging machine is communicated with the inlet of the slag slurry pump through a pipeline, the outlet of the slag slurry pump is communicated with the feeding hole of the filter press through a pipeline, and the liquid outlet of the filter press is communicated with the inlet of the dilute liquid tank through a pipeline;
the outlet of the dilute liquid pump is also communicated with the liquid inlet of the gas-water separation unit through a pipeline, the liquid outlet of the gas-water separation unit is communicated with the inlet of the high-pressure pump through a pipeline, the outlet of the high-pressure pump is respectively communicated with the liquid inlet of the slag discharge unit, the spray water inlet of the immersion dust remover and the washing water inlet of the crude gas cooling unit through pipelines, and the washing water outlet of the crude gas cooling unit is communicated with the liquid inlet of the gas-water separation unit through a pipeline;
the outlet of the dilute liquid pump is also communicated with a spray water inlet of the immersion dust remover through a pipeline, the spray water outlet of the immersion dust remover is communicated with a liquid inlet of the gas-water separation unit through a pipeline, and a sewage outlet of the immersion dust remover is communicated with a feed inlet of the slag conveyor through a pipeline;
a first valve is arranged on a pipeline which communicates the outlet of the dilute liquid pump with the inlet of the chilling unit; a second valve is arranged on a pipeline which is communicated with the outlet of the dilute liquid pump and the liquid inlet of the gas-water separation unit; a third valve is arranged on a pipeline which communicates the outlet of the dilute liquid pump with the spray water inlet of the immersion dust remover; and a fourth valve is arranged on a pipeline for communicating the spray water outlet of the immersion dust remover with the liquid inlet of the gas-water separation unit.
Preferably, the submerged dust remover further comprises a buffer separation tank, a sewage outlet of the submerged dust remover is communicated with an inlet of the buffer separation tank through a pipeline, and a liquid outlet of the buffer separation tank is communicated with a feed inlet of the slag conveyor through a pipeline.
Preferably, a filter screen is arranged at the liquid outlet of the cache separation tank, and a slag removal port is arranged on the tank body of the cache separation tank.
Preferably, the device also comprises a ground groove and a ground groove pump, wherein an outlet of the ground groove is communicated with an inlet of the ground groove pump through a pipeline, and an outlet of the ground groove pump is communicated with a feed inlet of the slag conveyor through a pipeline.
Preferably, the spray water outlet of the immersion dust remover is also communicated with the feed inlet of the slag conveyor through a pipeline, and a fifth valve is arranged on the pipeline communicating the spray water outlet of the immersion dust remover with the feed inlet of the slag conveyor.
Preferably, two discharge ports are respectively formed in two sides of the top of the slag conveyor, and the discharge ports are communicated with the emptying chimney.
The utility model has the advantages that: 1. during the furnace drying period, the dilute water tank directly supplies water to the immersed dust remover, and spray water in the immersed dust remover is directly discharged into the slag conveyor, so that the water circulation amount during the furnace drying period is reduced; 2. the gas-water separation unit removes impurities such as ammonia, dust, tar and the like in the circulating water, reduces the solid content and the ammonia content in the circulating water, improves the water quality of the circulating water, and greatly reduces the failure rate of each device in a water circulating system; in addition, by injecting the circulating water treated by the gas-water separation unit into the deslagging system, the water temperature and the ammonia content of the deslagging unit are effectively reduced, the ammonia volatilization amount of a subsequent slag conveyor and a pressure filter is further reduced, and the safety of a production site is effectively improved; 3. ground washing water collected by the ground groove is used as water supplement of the water circulation system, so that the utilization rate of water resources is improved; 4. the buffer separating tank is arranged at the bottom of the immersion dust remover, so that the blockage of a sewage discharge pipeline of the immersion dust remover is effectively avoided.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram showing the system connection in example 1;
in the figure: 1. the device comprises a thin liquid tank, 2, a thin liquid pump, 3, a gas-water separation unit, 4, a high-pressure pump, 5, a slag discharge unit, 6, an immersion dust remover, 7, a crude gas cooling unit, 8, a chilling unit, 9, a slag salvaging machine, 10, a slag slurry pump, 11, a filter press, 12, a cache separation tank, 13, a ground groove, 14, a ground groove pump, 15, a first valve, 16, a second valve, 17, a third valve, 18, a fourth valve, 19, a fifth valve, 20, a filter screen, 21, a slag removal port, 22 and an air release chimney.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, a water circulation system for catalytic gasification comprises a dilute liquid tank 1, a dilute liquid pump 2, a gas-water separation unit 3, a high-pressure pump 4, a slag discharge unit 5, an immersion dust remover 6, a crude gas cooling unit 7, a chilling unit 8, a slag salvaging machine 9, a slag slurry pump 10, a filter press 11, a buffer separation tank 12, a ground tank 13 and a ground tank pump 14;
the export of thin liquid jar 1 passes through the pipeline and communicates with the import of thin liquid jar 2, the export of thin liquid jar 2 passes through the pipeline and communicates with the import of chilling unit 8, be equipped with first valve 15 on the pipeline of the export of intercommunication thin liquid jar 2 and the import of chilling unit 8, the export of chilling unit 8 passes through the pipeline and communicates with the inlet of row's sediment unit 5, the liquid outlet of row's sediment unit 5 passes through the pipeline and communicates with the feed inlet of dragveyer 9, the liquid outlet of dragveyer 9 passes through the pipeline and communicates with the import of sediment stuff pump 10, the export of sediment stuff pump 10 passes through the pipeline and communicates with the feed inlet of pressure filter 11, the liquid outlet of pressure filter 11 passes through the pipeline and communicates with the import of thin liquid jar 1.
The outlet of the dilute liquid pump 2 is communicated with the liquid inlet of the gas-water separation unit 3 through a pipeline, a second valve 16 is arranged on the pipeline which is communicated with the outlet of the dilute liquid pump 2 and the liquid inlet of the gas-water separation unit 3, the liquid outlet of the gas-water separation unit 3 is communicated with the inlet of the high-pressure pump 4 through a pipeline, the outlet of the high-pressure pump 4 is communicated with the liquid inlet of the slag discharge unit 5, the spray water inlet of the immersion dust remover 6 and the washing water inlet of the crude gas cooling unit 7 through pipelines, and the washing water outlet of the crude gas cooling unit 7 is communicated with the liquid inlet of the gas-water separation unit 3 through a pipeline.
The outlet of the dilute liquid pump 2 is also communicated with the spray water inlet of the immersion dust remover 6 through a pipeline, a third valve 17 is arranged on the pipeline which is communicated with the outlet of the dilute liquid pump 2 and the spray water inlet of the immersion dust remover 6, the spray water outlet of the immersion dust remover 6 is communicated with the liquid inlet of the gas-water separation unit 3 through a pipeline, a fourth valve 18 is arranged on the pipeline which is communicated with the spray water outlet of the immersion dust remover 6 and the liquid inlet of the gas-water separation unit 3, the spray water outlet of the immersion dust remover 6 is also communicated with the feed inlet of the slag salvaging machine 9 through a pipeline, a fifth valve 19 is arranged on the pipeline which is communicated with the spray water outlet of the immersion dust remover 6 and the feed inlet of the slag salvaging machine 9, the drain outlet of the immersion dust remover 6 is communicated with the inlet of the buffer separation tank 12 through a pipeline, a filter screen 20 is arranged at the liquid outlet of the buffer separation tank 12, a slag cleaning port 21 is arranged on the tank body of the buffer separation tank 12, and the liquid outlet of the buffer separation tank 12 is communicated with the feed inlet of the slag salvaging machine 9 through a pipeline. Two discharge ports are respectively arranged at two sides of the top of the slag dragging machine 9 and are communicated with the venting chimney 22.
The outlet of the ground groove 13 is communicated with the inlet of a ground groove pump 14 through a pipeline, and the outlet of the ground groove pump 14 is communicated with the feed inlet of the slag conveyor 9 through a pipeline.
Description of the work:
during the furnace baking period, the third valve 17 and the fifth valve 19 are opened, the first valve 15, the second valve 16 and the fourth valve 18 are closed, the dilute liquid pump 2 is started, water is supplied to the immersion dust remover 6 from the dilute liquid tank 1, slag slurry in the immersion dust remover 6 passes through the buffer separation tank 12, scale pieces in the slag slurry are separated and then sent to the slag dragging machine 9, the blockage of a sewage discharge pipeline of the immersion dust remover 6 is effectively avoided, and spray water of the immersion dust remover 6 is directly discharged into the slag dragging machine 9, so that the water circulation amount during the furnace baking period is reduced.
After the oven is dried and the gasifier is fed, closing the third valve 17 and the fifth valve 19, opening the first valve 15, the second valve 16 and the fourth valve 18, starting the dilute liquid pump 2 and the high-pressure pump 4, conveying the circulating water in the dilute liquid tank 1 to the chilling unit 8 and the gas-water separation unit 3, and after impurities such as dust and ammonia are removed in the gas-water separation unit 3, sending out the circulating water in three ways:
one path of circulating water after heat exchange with the chilling unit 8 is sent to the slag discharging unit 5, and the water temperature and the ammonia content of the slag discharging unit 5 are effectively reduced by conveying the circulating water discharged by the gas-water separation unit 3 to the slag discharging unit 5; one path of the water is used as spray water and sent into an immersion dust remover 6, and the spray water in the immersion dust remover 6 returns to the gas-water separation unit 3 after absorbing dust in the crude gas to remove the dust and then is continuously recycled; one path of the washing water is used as washing water and is sent to a crude gas cooling unit 7, the washing water of the crude gas cooling unit 7 brings tar and dust in crude gas to a gas-water separation unit 3, and the tar and the dust are separated out in the gas-water separation unit 3 and then continuously recycled after being removed.
And discharging water discharged by the slag discharge unit 5 and slag slurry at the bottom of the immersed dust collector 6 to a slag conveyor 9 for primary treatment, sending the slag slurry into a filter press 11 for filtration, and conveying filtrate to the dilute solution tank 1 for recycling. Because the circulating water passes through the processing of gas water separation unit 3, the ammonia content reduces for the condition of dragveyer 9 volatile ammonia improves greatly, simultaneously through seting up the discharge port at dragveyer 9 top to communicate with the blowdown chimney 22, further improved the condition of dragveyer 9 volatile ammonia, effectively improved the security of production.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A water circulation system for catalytic gasification is characterized by comprising a thin liquid tank, a thin liquid pump, a gas-water separation unit, a high-pressure pump, a slag discharge unit, an immersion dust remover, a crude gas cooling unit, a chilling unit, a slag dragging machine, a slag slurry pump and a filter press;
the outlet of the thin liquid tank is communicated with the inlet of the thin liquid pump through a pipeline, the outlet of the thin liquid pump is communicated with the inlet of the chilling unit through a pipeline, the outlet of the chilling unit is communicated with the liquid inlet of the slag discharging unit through a pipeline, the liquid outlet of the slag discharging unit is communicated with the feeding hole of the slag dragging machine through a pipeline, the liquid outlet of the slag dragging machine is communicated with the inlet of the slurry pump through a pipeline, the outlet of the slurry pump is communicated with the feeding hole of the filter press through a pipeline, and the liquid outlet of the filter press is communicated with the inlet of the thin liquid tank through a pipeline;
the outlet of the dilute liquid pump is also communicated with the liquid inlet of the gas-water separation unit through a pipeline, the liquid outlet of the gas-water separation unit is communicated with the inlet of the high-pressure pump through a pipeline, the outlet of the high-pressure pump is respectively communicated with the liquid inlet of the slag discharge unit, the spray water inlet of the immersion dust remover and the washing water inlet of the crude gas cooling unit through pipelines, and the washing water outlet of the crude gas cooling unit is communicated with the liquid inlet of the gas-water separation unit through a pipeline;
the outlet of the dilute liquid pump is also communicated with a spray water inlet of the immersed dust remover through a pipeline, a spray water outlet of the immersed dust remover is communicated with a liquid inlet of the gas-water separation unit through a pipeline, and a sewage outlet of the immersed dust remover is communicated with a feed inlet of the slag conveyor through a pipeline;
a first valve is arranged on a pipeline which communicates the outlet of the dilute liquid pump with the inlet of the chilling unit; a second valve is arranged on a pipeline which is communicated with the outlet of the dilute liquid pump and the liquid inlet of the gas-water separation unit; a third valve is arranged on a pipeline which communicates the outlet of the dilute liquid pump with the spray water inlet of the immersion dust remover; and a fourth valve is arranged on a pipeline for communicating the spray water outlet of the immersion dust remover with the liquid inlet of the gas-water separation unit.
2. The water circulation system for catalytic gasification according to claim 1, further comprising a buffer separation tank, wherein a drain outlet of the immersion dust remover is communicated with an inlet of the buffer separation tank through a pipeline, and a liquid outlet of the buffer separation tank is communicated with a feed inlet of the slag conveyor through a pipeline.
3. The water circulation system for catalytic gasification according to claim 2, wherein a filter screen is provided at the liquid outlet of the buffer separation tank, and a slag removal port is provided on the tank body of the buffer separation tank.
4. The catalytic gasification water circulation system according to claim 1, further comprising a sump and a sump pump, wherein an outlet of the sump is in communication with an inlet of the sump pump through a pipeline, and an outlet of the sump pump is in communication with a feed inlet of the slag conveyor through a pipeline.
5. The water circulation system for catalytic gasification according to claim 1, wherein the spray water outlet of the immersion dust remover is further communicated with the feed inlet of the slag remover through a pipeline, and a fifth valve is arranged on the pipeline communicating the spray water outlet of the immersion dust remover with the feed inlet of the slag remover.
6. A water circulation system for catalytic gasification according to any of claims 1, 3-5, wherein one discharge port is provided on each side of the top of the dragveyer, and the discharge ports are connected to the flare stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222805673.7U CN218860656U (en) | 2022-10-24 | 2022-10-24 | Water circulation system for catalytic gasification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222805673.7U CN218860656U (en) | 2022-10-24 | 2022-10-24 | Water circulation system for catalytic gasification |
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| Publication Number | Publication Date |
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| CN218860656U true CN218860656U (en) | 2023-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222805673.7U Active CN218860656U (en) | 2022-10-24 | 2022-10-24 | Water circulation system for catalytic gasification |
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| CN (1) | CN218860656U (en) |
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- 2022-10-24 CN CN202222805673.7U patent/CN218860656U/en active Active
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