CN211770603U - Crushed coal pressure gasification solid-liquid mixture treatment system - Google Patents
Crushed coal pressure gasification solid-liquid mixture treatment system Download PDFInfo
- Publication number
- CN211770603U CN211770603U CN201922224568.2U CN201922224568U CN211770603U CN 211770603 U CN211770603 U CN 211770603U CN 201922224568 U CN201922224568 U CN 201922224568U CN 211770603 U CN211770603 U CN 211770603U
- Authority
- CN
- China
- Prior art keywords
- communicated
- pipeline
- tank
- primary
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Centrifugal Separators (AREA)
Abstract
The application relates to a crushed coal pressure gasification solid-liquid mixture treatment system and a treatment method, comprising a primary treatment device and a secondary treatment device, wherein the primary treatment device comprises a sedimentation tank and a collection tank which are arranged under the ground, and the sedimentation tank and the collection tank are communicated through an overflow pipe; the secondary treatment device comprises a primary tar separator and a centrifuge; a second delivery pump is arranged at the side of the collecting tank, and the liquid outlet of the second delivery pump is communicated with the liquid inlet of the primary tar separator; a liquid outlet of a cone at the bottom of the primary tar separator is communicated with a pipeline and is communicated with a liquid inlet of a first conveying pump, and a liquid outlet of the first conveying pump is communicated with a three-way valve and is communicated with a centrifugal machine; the other passage of the three-way valve is connected with a first return pipeline which is communicated with the liquid inlet of the primary tar separator. The application can solve the problem of hazardous waste treatment of dust-containing heavy aromatic hydrocarbons, and avoid the environmental pollution caused by solid and liquid emissions.
Description
Technical Field
The application relates to the field of coal chemical industry solid waste treatment, in particular to a crushed coal pressure gasification solid-liquid mixture treatment system for improving the quality of byproducts and solving solid waste.
Background
After the gas-water separation device normally operates, a large amount of dust-containing heavy aromatic hydrocarbon can be produced every day. The method is characterized in that the dust-containing heavy aromatic hydrocarbons generated at the bottom of a primary tar separator of a gas-water separation device contain coal dust and water, the coal dust and the water are invalid components, the dust-containing heavy aromatic hydrocarbons are sold to a heavy aromatic hydrocarbon processing plant according to the existing project operation mode, due to the increase of transportation cost, the separation of the coal dust, the heavy aromatic hydrocarbons and the water is needed when the heavy aromatic hydrocarbon processing plant arrives, and the separated coal dust and the separated water cannot be processed in the heavy aromatic hydrocarbon processing plant.
The plants capable of processing the heavy aromatic oil containing coal in Xinjiang and inner Mongolia areas are few, so that the heavy aromatic oil containing dust in the areas is difficult to sell. Dust-containing heavy aromatic hydrocarbons are defined as hazardous wastes in the environmental evaluation of Xinjiang and inner Mongolia, the export of the original design as a byproduct is not feasible, the treatment cost is high according to the hazardous wastes, if the dust-containing heavy aromatic hydrocarbons are treated in a gas-water separation device, the separated coal powder can be directly sent to a boiler for combustion, the separated water can be treated in a reverse system, and clean heavy aromatic hydrocarbons with higher added values can be obtained.
Disclosure of Invention
In view of the above-mentioned defects in the prior art, the present application aims to provide a system for effectively separating coal dust, heavy aromatics and water in dust-containing heavy aromatics, and a system for treating a crushed coal pressure gasification solid-liquid mixture.
The purpose of the application is realized as follows: the crushed coal pressure gasification solid-liquid mixture treatment system comprises a primary treatment device and a secondary treatment device, wherein the primary treatment device comprises a sedimentation tank and a collection tank which are arranged under the ground, and the sedimentation tank and the collection tank are communicated through an overflow pipe; the secondary treatment device comprises a primary tar separator and a centrifuge; a second delivery pump is arranged at the side of the collecting tank, and the liquid outlet of the second delivery pump is communicated with the liquid inlet of the primary tar separator; a liquid outlet of a cone at the bottom of the primary tar separator is communicated with a pipeline and is communicated with a liquid inlet of a first conveying pump, and a liquid outlet of the first conveying pump is communicated with a three-way valve and is communicated with a centrifugal machine; the other passage of the three-way valve is connected with a first return pipeline which is communicated with the liquid inlet of the primary tar separator.
A second backflow pipeline is arranged at the liquid outlet of the second conveying pump, the backflow outlet of the second backflow pipeline is communicated with the dust-containing heavy aromatic hydrocarbon collecting cavity at the bottom of the primary tar separator, and a control valve is arranged on the second backflow pipeline.
The primary treatment device comprises two sedimentation tanks and a collecting tank, wherein a low-pressure steam pipeline is arranged at the bottom of each sedimentation tank, and steam spray heads are distributed on the low-pressure steam pipeline.
And the rear part of the centrifugal machine is communicated with three pipelines, wherein one pipeline is communicated with the heavy aromatic hydrocarbon tank, the other pipeline is communicated with the tar sewage tank, and the other pipeline is communicated with the loading pipeline.
Due to the implementation of the technical scheme, the problems that when the dust-containing heavy aromatic hydrocarbons are discharged outside the truck, a small amount of gas is released and a small amount of heavy aromatic hydrocarbons overflow, which are caused by the inconvenience of loading, and the environment of the device area is polluted locally can be solved thoroughly. Meanwhile, the problem of treatment of hazardous waste of dust-containing heavy aromatic hydrocarbons is solved, and the pollution of solid and liquid emissions to the environment is avoided. During the driving, the dust-containing heavy aromatic hydrocarbon can be stored and treated in a sealed way, so that the environmental pollution caused by solid and liquid is avoided.
Drawings
The specific structure of the application is given by the following figures and examples:
FIG. 1 is a schematic structural diagram of a system for treating a solid-liquid mixture by pressure gasification of crushed coal.
Legend: 1. steam pipeline, 2, steam nozzle, 3, settling tank, 4, collecting tank, 5, second return pipeline, 6, first return pipeline, 7, first delivery pump, 8, three-way valve, 9, loading pipeline, 10, tar sewage tank, 11, heavy aromatics tank, 12, centrifuge, 13, final oil separator, 14, initial tar separator, 15, second delivery pump, 16 and overflow pipe.
Detailed Description
The present application is not limited to the following examples, and specific implementations may be determined according to the technical solutions and practical situations of the present application.
Example (b): as shown in fig. 1, the crushed coal pressure gasification solid-liquid mixture treatment system comprises a primary treatment device and a secondary treatment device, wherein the primary treatment device comprises a sedimentation tank 3 and a collection tank 4 which are arranged under the ground, and the sedimentation tank 3 and the collection tank 4 are communicated through an overflow pipe 16; the secondary treatment device comprises a primary tar separator 14 and a centrifuge 12; a second conveying pump 15 is arranged on the side of the collecting tank 4, and a liquid outlet of the second conveying pump 15 is communicated with a liquid inlet of the primary tar separator 14; a bottom cone liquid outlet of the primary tar separator 14 is communicated with a pipeline and is communicated with a liquid inlet of the first conveying pump 7, and a liquid outlet of the first conveying pump 7 is communicated with the three-way valve 8 and is communicated with the centrifuge 12; the other path of the three-way valve 8 is connected with a first return pipeline 6, and the first return pipeline 6 is communicated with the liquid inlet of the primary tar separator 14.
The final oil separator 13 and the initial tar separator 14 are conventional devices, and their specific structures are not the invention of the present application and will not be described in detail here. The dust-containing heavy aromatics will be collected in the heavy aromatics collection chamber at the bottom of the primary tar separator 14 by precipitation.
Furthermore, a second backflow pipeline 5 is arranged at a liquid outlet of the second conveying pump 15, a backflow outlet of the second backflow pipeline 5 is communicated with the dust-containing heavy aromatic hydrocarbon collecting cavity at the bottom of the primary tar separator 2, and a control valve is arranged on the second backflow pipeline 5.
Further, the primary treatment device comprises two sedimentation tanks 3 and a collection tank 4, wherein a low-pressure steam pipeline is arranged at the bottom of the sedimentation tank 3, and the steam spray heads 2 are distributed on the low-pressure steam pipeline.
Further, the centrifuge 12 is a three-phase centrifuge, and further, the centrifuge 12 is connected to three pipelines, one of which is connected to the heavy aromatic hydrocarbon tank 11, the other is connected to the tar sewage tank 10, and the other is connected to the loading pipeline 9. A centrifuge 12 separates heavy aromatic hydrocarbon, coal gas water and coal dust in the dust-containing heavy aromatic hydrocarbon, and the separated heavy aromatic hydrocarbon is sent to a heavy aromatic hydrocarbon tank 11 through a heavy aromatic hydrocarbon pipeline; the separated gas water is sent to a tar sewage tank 10 through an underground pipeline; the separated coal powder is loaded on site and returned to the coal preparation device.
Furthermore, a pipeline communicating valve is arranged on a three-way pipeline communicated with the rear of the centrifuge.
The first transfer pump 7 and the second transfer pump 15 are both rotor pumps.
The dust-containing heavy aromatic hydrocarbon (the mass content of coal dust is less than or equal to 10 wt%) at the conical bottom of the primary tar separator 2 is pressurized and conveyed into a centrifugal machine 12 through a first conveying pump 7, the separated coal gas water enters a tar sewage tank 10, the heavy aromatic hydrocarbon enters a heavy aromatic hydrocarbon tank 11 and is conveyed to a tank area for tank filling, and the separated coal powder is conveyed to a boiler for blending combustion after being loaded in a truck; two refluxes are arranged in the whole process, and one reflux flows back to the bottom of the primary tar separator 2 through an outlet of the first delivery pump 7; the other route is controlled by a manual-automatic integrated three-way valve 8 to flow back to the liquid inlet of the primary tar separator 14.
When the dust-containing heavy aromatic hydrocarbon (the mass content of coal dust is more than or equal to 10 wt%), the dust-containing heavy aromatic hydrocarbon produced at the bottom of the primary tar separator 14 is pressed out by opening a static pressure head inside the equipment through a pipeline at the bottom of the equipment platform, the dust-containing heavy aromatic hydrocarbon is automatically flowed into a dust-containing heavy aromatic hydrocarbon transport vehicle, the dust-containing heavy aromatic hydrocarbon is poured into a dust-containing heavy aromatic hydrocarbon settling tank 3 through the dust-containing heavy aromatic hydrocarbon transport vehicle, the settled heavy aromatic hydrocarbon containing a small amount of dust is sent into the primary tar separator 14 through a second conveying pump 15 to be separated again, and the coal dust is left in the settling tank 3.
Before the centrifuge 12 is started, the temperature of the primary tar separator 14 is confirmed to be 65-75 ℃; the first delivery pump 7 is normal and in a standby state; the three-way valve 8 enters a pipeline of the centrifuge 12 and is in a closed state, and the three-way valve 8 enters a first return pipeline 6 of the primary tar separator 14 and is in a closed state; then, the impeller size of the first conveying pump 7 is adjusted to 250mm, then the screw is started, the rotating speed is adjusted to 30r/min, and then the rotary drum is started, and the rotating speed is adjusted to 3000 r/min; opening a control valve on the second return pipeline 5, opening a cone valve of the primary tar separator 14, starting the first delivery pump 7, and performing small circulation among the primary tar separator 14, the first delivery pump 7, the second return pipeline 5 and the primary tar separator 14; after the small circulation is normal, the materials are cut into the first return pipeline 6 through the three-way valve to carry out the large circulation among the primary tar separator 14, the first delivery pump 7, the first return pipeline 6 and the primary tar separator 14; after the large circulation is normal, the material is cut into the centrifuge 12 through the three-way valve 8.
After the centrifuge 12 is started, observing the running condition of the centrifuge, and properly adjusting the rotating speed of the rotary drum and the spiral rotating speed according to the slag discharge condition; sampling and analyzing the water content of heavy aromatic hydrocarbon and the content of heavy aromatic hydrocarbon in water according to needs, and adjusting the size of the impeller according to analysis indexes.
The dust-containing heavy aromatic hydrocarbon delivery pump is a rotor pump, the running frequency of the rotor pump is 40% when the three-phase centrifuge is not started, the feeding is switched into the three-phase centrifuge when the frequency of the rotor pump is increased to 50%, and steam purging is added to inlet and outlet pipelines and a backflow pipeline of the rotor pump.
Operating parameters of the three-phase centrifuge: the setting of the rotary drum is 100 percent, the rotating speed of the rotary drum is 3500r/min, the setting of the screw is 60 percent, the rotating speed of the screw is 30r/min, the inlet temperature is 70 ℃, the size of the impeller is 255mm, and the feeding amount is 5m3/h。
The water content in the heavy aromatic hydrocarbon is controlled by adjusting the screw differential speed, the torque is controlled between 40 and 50, the torque is too high, the screw differential speed is increased, the torque is too low, and the screw differential speed is decreased. The moisture in the heavy aromatic hydrocarbon is controlled by adjusting the diameter of the impeller, and the smaller the size of the impeller is, the lower the moisture in the heavy aromatic hydrocarbon is.
Feeding parameters of a three-phase centrifuge: the dust content is less than or equal to 10 percent, and the water content is less than or equal to 20 percent. And (3) heavy aromatic hydrocarbon production: the dust content is less than or equal to 1.5 percent, and the water content is less than or equal to 4 percent.
Before loading the dust-containing heavy aromatic hydrocarbon, opening a device conical bottom blowing steam valve on site, and blowing steam into the tank for 30 minutes; blowing steam (cut in at 45 degrees) is added at the slag discharge outlet of the three-phase centrifuge, and steam blowing is added at the heavy aromatic hydrocarbon pipeline.
30-60wt% of heavy aromatic hydrocarbon, 10-30wt% of water and 15-30wt% of dust; and (3) heavy aromatic hydrocarbon production: the water content is less than or equal to 5 percent, and the dust content is less than or equal to 1.5 percent.
And flushing is carried out before stopping the machine, and the time is not less than 30 min. (1) Cutting material, opening washing water, and controlling flow at 6-8m3H; (2) the differential speed is adjusted by 100 percent, the diameter of the impeller is adjusted from large to small and then from small to large, the adjustment is stable and slow, and the adjustment is repeatedly carried out for 10 min; (3) regulating impeller size by regulating impeller size from small to large and from large to small by rotary drum and spiral for 10 min; (4) adjusting the rotary drum and the screw to 30%, adjusting the size of the impeller from small to large, then from large to small, repeating for 10 min; (5) the torque was observed to drop below 10 indicating a clean rinse, shut down of the rinse, shut down, and end of the rinse.
The foregoing description is by way of example only and is not intended as limiting the embodiments of the present application. All obvious variations and modifications of the present invention are within the scope of the present invention.
Claims (5)
1. The utility model provides a crushed coal pressure gasification solid-liquid mixture processing system which characterized in that: the device comprises a primary treatment device and a secondary treatment device, wherein the primary treatment device comprises a sedimentation tank and a collection tank which are arranged under the ground, and the sedimentation tank and the collection tank are communicated through an overflow pipe; the secondary treatment device comprises a primary tar separator and a centrifuge; a second delivery pump is arranged at the side of the collecting tank, and the liquid outlet of the second delivery pump is communicated with the liquid inlet of the primary tar separator; a liquid outlet of a cone at the bottom of the primary tar separator is communicated with a pipeline and is communicated with a liquid inlet of a first conveying pump, and a liquid outlet of the first conveying pump is communicated with a three-way valve and is communicated with a centrifugal machine; the other passage of the three-way valve is connected with a first return pipeline which is communicated with the liquid inlet of the primary tar separator.
2. The crushed coal pressure gasification solid-liquid mixture treatment system according to claim 1, wherein: a second backflow pipeline is arranged at the liquid outlet of the second conveying pump, the backflow outlet of the second backflow pipeline is communicated with the dust-containing heavy aromatic hydrocarbon collecting cavity at the bottom of the primary tar separator, and a control valve is arranged on the second backflow pipeline.
3. The crushed coal pressure gasification solid-liquid mixture treatment system according to claim 1 or 2, characterized in that: the primary treatment device comprises two sedimentation tanks and a collecting tank, wherein a low-pressure steam pipeline is arranged at the bottom of each sedimentation tank, and steam spray heads are distributed on the low-pressure steam pipeline.
4. The crushed coal pressure gasification solid-liquid mixture treatment system according to claim 1 or 2, characterized in that: and the rear part of the centrifugal machine is communicated with three pipelines, wherein one pipeline is communicated with the heavy aromatic hydrocarbon tank, the other pipeline is communicated with the tar sewage tank, and the other pipeline is communicated with the loading pipeline.
5. The crushed coal pressure gasification solid-liquid mixture treatment system according to claim 3, wherein: and the rear part of the centrifugal machine is communicated with three pipelines, wherein one pipeline is communicated with the heavy aromatic hydrocarbon tank, the other pipeline is communicated with the tar sewage tank, and the other pipeline is communicated with the loading pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224568.2U CN211770603U (en) | 2019-12-12 | 2019-12-12 | Crushed coal pressure gasification solid-liquid mixture treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224568.2U CN211770603U (en) | 2019-12-12 | 2019-12-12 | Crushed coal pressure gasification solid-liquid mixture treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211770603U true CN211770603U (en) | 2020-10-27 |
Family
ID=72980972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922224568.2U Active CN211770603U (en) | 2019-12-12 | 2019-12-12 | Crushed coal pressure gasification solid-liquid mixture treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211770603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980988A (en) * | 2019-12-12 | 2020-04-10 | 伊犁新天煤化工有限责任公司 | Crushed coal pressure gasification solid-liquid mixture treatment system and treatment method |
-
2019
- 2019-12-12 CN CN201922224568.2U patent/CN211770603U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980988A (en) * | 2019-12-12 | 2020-04-10 | 伊犁新天煤化工有限责任公司 | Crushed coal pressure gasification solid-liquid mixture treatment system and treatment method |
| CN110980988B (en) * | 2019-12-12 | 2023-10-31 | 伊犁新天煤化工有限责任公司 | System and method for treating crushed coal pressurized gasification solid-liquid mixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102718375B (en) | Oily sediment treatment method and device | |
| CN101265010B (en) | Industrial automatic method and device for producing sludge dry powder by sludge dehydration | |
| CN105156179A (en) | Exhaust gas and gas scrubber fluid cleaning equipment and method | |
| CN102282312A (en) | Treatment, such as cutting, soaking and/or washing, of organic material | |
| CN111187709B (en) | Desanding and homogenizing device and process suitable for anaerobic fermentation slurry | |
| CN201320551Y (en) | Pollution-free oil-containing silt purification treatment system | |
| CN107915381A (en) | A kind of petrochemical industry oil-sludge treatment device and method | |
| CN211770603U (en) | Crushed coal pressure gasification solid-liquid mixture treatment system | |
| CN202729965U (en) | Oil field skid-mounted type oil field waste treatment device | |
| CN105545278A (en) | Oil field surface desanding device | |
| CN206244620U (en) | A kind of petrochemical industry oil-sludge treatment device | |
| RU2266258C1 (en) | Oil-containing slime processing method and apparatus for implementation thereof | |
| CN110980988A (en) | Crushed coal pressure gasification solid-liquid mixture treatment system and treatment method | |
| CN210875709U (en) | Carbide slag edulcoration processing system | |
| CN106378253A (en) | Oil-based rock waste processing device and cycle processing system | |
| CN114032119A (en) | Safe, simple, efficient and environment-friendly tar purification and solid waste treatment system | |
| CN111925085B (en) | Oil sludge treatment method suitable for heavy bottom oil sludge and tank cleaning oil sludge | |
| CN210814627U (en) | Equipment for full-tower dehydration and replacement of all slurry in wet desulphurization absorption tower | |
| CN205556570U (en) | Crude oil emulsion water oil separating system | |
| KR101694268B1 (en) | Dust collecting system | |
| CN206424909U (en) | A kind of carbon black collects granulating system and carbon black production line | |
| CN206447810U (en) | A kind of pelletizing of carbon black drying system and carbon black production system | |
| CN206521375U (en) | A kind of oil sludge processing equipment | |
| CN206295682U (en) | A kind of filter cloth washing water system of wet desulphurization device | |
| CN216878756U (en) | Wet flue gas desulfurization liquid column tower slurry circulation main pipe on-line slurry discharge system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |