CN210134067U - Multi-pollution-source integrated treatment system for normal-low pressure coal gas production - Google Patents
Multi-pollution-source integrated treatment system for normal-low pressure coal gas production Download PDFInfo
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- CN210134067U CN210134067U CN201920782450.9U CN201920782450U CN210134067U CN 210134067 U CN210134067 U CN 210134067U CN 201920782450 U CN201920782450 U CN 201920782450U CN 210134067 U CN210134067 U CN 210134067U
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- 239000003034 coal gas Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title description 10
- 238000001816 cooling Methods 0.000 claims abstract description 87
- 238000000034 method Methods 0.000 claims abstract description 47
- 238000004140 cleaning Methods 0.000 claims abstract description 42
- 239000002918 waste heat Substances 0.000 claims abstract description 41
- 230000008569 process Effects 0.000 claims abstract description 31
- 238000002309 gasification Methods 0.000 claims abstract description 25
- 238000011084 recovery Methods 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 238000005406 washing Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000002699 waste material Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 7
- 238000000889 atomisation Methods 0.000 claims description 4
- 238000011001 backwashing Methods 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 7
- 239000003245 coal Substances 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000000571 coke Substances 0.000 description 5
- 239000000443 aerosol Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Industrial Gases (AREA)
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Abstract
The utility model relates to a many pollution sources of normal low pressure coal gas integration treatment system, it includes four major processes of ordinary pressure gasification, cyclone separation, waste heat recovery, washing separation and cooling recovery, establish a set of washing separation process that comprises self-cleaning filter (17) and ash bin (45) behind the waste heat recovery process and respectively with exhaust-heat boiler (43) and self-cleaning filter (17) intercommunication, by the cooling recovery process that straight cooling tower (46) and cooling tower (48) are constituteed; therefore, the normal and low pressure coal gas multi-pollution source integrated treatment system without pollution leakage is formed.
Description
Technical Field
The utility model relates to an industrial coal gas making technology, in particular to a multi-pollution source integrated treatment system for normal and low pressure coal gas making.
Background
In the coal gas industry of China, the normal-low pressure coal gas making process accounts for more than 60% of the whole gas making process. The process has the obvious advantages of simple gas making process, low investment and the like, but has the obvious disadvantages, particularly has great environmental protection pressure, and mainly shows that a large amount of water slag, wastewater which is difficult to treat and has extremely high treatment cost and serious aerosol emission cause great harm to the environment and posts, and the process can be eliminated if not fundamentally changed.
The current domestic commonly-used normal-low pressure gas making process flow (as shown in figure 4) basically comprises the following steps: five process flows of normal pressure gasification, cyclone separation, waste heat recovery, washing separation and cooling recovery.
Raw gas components: under the combined action of oxygen (air, oxygen-enriched oxygen and pure oxygen) and steam, the carbon in the raw material coal is incompletely combusted in a certain temperature range to generate raw coke oven gas,
C+O2→CO
C+H2O→H2+CO
its combustion products mainly include CO and H2、CH4The effective components and phenol and H which are simultaneously associated2S, HCN, NH4 and other substances and a large amount of solid particles.
The current stage is mainly a treatment process; (see FIG. 4): high-temperature raw gas enters a waste boiler process for heat exchange after large particles are removed by cyclone dust removal, low-pressure steam is generated as a byproduct, the exhaust gas temperature is usually 150 ℃ after the raw gas is treated by the waste boiler, the raw gas enters a washing tower for removing impurities and cooling (enters a back-stage process);
the washing liquid is recycled by means of sedimentation, filtration, cooling and the like, and part of incremental wastewater (the reason of incomplete conversion of water vapor) is discharged after water treatment.
According to the current requirements for environmental protection of production enterprises, the gas making process has the following disadvantages:
1) the incremental wastewater treatment difficulty is high and the toxicity is high: the waste water after washing contains a large amount of particles and a large amount of coal tar and ammonia nitrogen components, so that the waste liquid is difficult to treat to reach the discharge standard by an effective economic means;
2) the circulating cooling water has large amount of cooling water, high impurity content and corrosive components, high volatile organic compounds generate large amount of aerosol, and have considerable toxicity, great harm to the environment and occupational health, and the high volatile organic compounds are also main components forming PM 2.5;
3) because of the existence of a large amount of waste water and waste residues, the civilized production in a plant area is difficult to ensure, and particularly, the discharge of harmful substances such as sewage ammonia nitrogen and the like is inevitable due to the influence of rainwater every time, so that the water quality is seriously influenced, and the pollution of underground water and soil is caused;
4) low energy conversion rate and high water consumption.
Therefore, a new multi-pollution-source integrated treatment system for normal and low pressure coal gas is provided, which is not only a requirement for the generation and development of enterprises, but also an expectation for the growing problem of environmental protection.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose of the invention: aims to provide a set of brand-new coal gas making system which can solve the existing normal and low pressure coal gas making pollution source.
The utility model discloses a following technical scheme realizes:
the normal-pressure and low-pressure coal gas multi-pollution source integrated treatment system comprises four working procedures of normal-pressure gasification, cyclone separation, waste heat recovery, washing separation and cooling recovery, wherein a set of washing separation working procedure consisting of a self-cleaning filter 17 and an ash bin 45 and a cooling recovery working procedure consisting of a direct cooling tower 46 and a cooling tower 48 which are respectively communicated with a waste heat boiler 43 and the self-cleaning filter 17 are additionally arranged after the waste heat recovery working procedure; therefore, the normal and low pressure coal gas multi-pollution source integrated treatment system without pollution leakage is formed.
The inlet of the self-cleaning filter 17 is connected with the hot gas outlet of the waste heat boiler 43 to obtain waste heat high-temperature gas cooled by the waste heat boiler, the output interface at the upper part of the self-cleaning filter 17 is connected with a direct cooling tower 46 in the cooling and recycling process, the output interface at the lower part of the self-cleaning filter 17 is connected with an ash bin 45 through a conveyor 49 to realize the conveying of waste in the self-cleaning process, and the ash bin 45 discharges accumulated ash together with the ash generated in the upstream process through a conveying pipeline.
The direct cooling tower 46 is provided with four external interfaces, wherein a first input interface a arranged at the bottom of the lower part of the tower body is connected with an upper output interface of the self-cleaning filter, an upper output interface b of the direct cooling tower 46 is a coal gas output interface and is directly communicated with the next procedure, the cooling tower 48 is provided with three interfaces, and a second output interface F is connected with a second input interface c on the direct cooling tower 46 through a control pump 47; the input interface E of the cooling tower 48 is connected with the first output interface d at the lower part of the direct cooling tower 46, thereby forming a closed cooling loop between the direct cooling tower 46 and the cooling tower 48; at the same time, the other connection G of the cooling tower 48 communicates with the waste heat boiler 43.
The self-cleaning filter 17 comprises a shell 59, a sensing detection control unit 50, a pressure atomization unit 51, an inlet stop valve assembly 52, an outlet stop valve assembly 53, a backwashing backflushing unit 54 and a filtering unit 55, wherein the filtering unit 55 is arranged on the middle upper part of the self-cleaning filter and plays a role in filtering from bottom to top.
As a further improvement of the above system, a branch line 57 directly connected to the atmospheric gasification furnace 41 is additionally provided to the main line of the cooling tower 48 communicating with the waste heat boiler 43, and an evaporator 58 is further provided in the branch line, so that the incremental water containing the oxygen, salt and oil removed from the cooling tower 48 is evaporated and sent to the atmospheric gasification furnace 41.
A multi-pollution source integrated treatment system for normal and low pressure coal gas production comprises the following process flows:
A. the lump coal entering the normal pressure gasification furnace 41 forms raw coke oven gas with the temperature of about 350 ℃ under the action of oxygen and water vapor, and the formed raw coke oven gas is continuously input into the cyclone separator 42; under the cyclone separation action, mixed gas containing dust with smaller mass is guided into a waste heat boiler 43 through an output pipeline arranged at the upper part of a cyclone separator for cooling treatment, then the raw gas after cooling treatment enters an inner cavity of a shell of a self-cleaning filter from bottom to top through a conveying pipeline connected with an inlet stop valve component 52 on the self-cleaning filter 17, after particles, salt and aerosol mixed in the raw gas are filtered through the filtering treatment of a filtering unit 55, the raw gas is connected to a first input interface a of a direct cooling tower 46 through an outlet stop valve component 53 arranged at the upper part of the self-cleaning filter and a conveying pipeline connected with the outlet stop valve component 53, and water gas is conveyed to a subsequent process from an output interface b at the upper part of the direct cooling tower 46 after water cooling treatment in the direct cooling tower 46; meanwhile, the direct cooler 46 is communicated with an interface E of the cooler through a pipeline arranged on an output interface d at the bottom, and is communicated with a second input interface c of the direct cooler 46 through a second output interface F of the cooler 48 and a control pump 47 arranged on the output pipeline to form a closed cold source loop;
B. while the step A is carried out, the particle impurities discharged by the self-cleaning filter 17 and deposited in the lower cavity are communicated with the inner cavity of the ash bin 45 through an output pipeline connected with the self-cleaning filter 17 and a conveying device arranged in the pipeline, and are discharged to a waste material conveying main pipe 56 through the lower output pipeline of the ash bin for transportation;
C. when the step A, B is performed, two output interfaces H, I and one input interface J are arranged on the lower furnace body of the waste heat boiler 43, the output interface H is communicated with the inner cavity of the normal pressure gasification furnace 41 through an output pipeline, and the input interface J of the waste heat boiler 43 is connected with an interface G of the cooling tower 48 through a connecting pipeline;
D. while the step A, B, C is being performed, the atmospheric gasifier 41, the cyclone 42, the waste heat boiler 43, and the ash silo 45 transport slag and ash having a calorific value generated during their operations to a waste collecting point through the waste discharge pipes, respectively, via the waste transport header 56.
As a further improvement of the normal-pressure and low-pressure coal gas production, a branch pipeline 57 directly connected to the normal-pressure gasification furnace 41 is additionally arranged on a main pipeline communicated to the waste heat boiler 43 through the cooling tower 48 in the treatment process, an evaporator 58 is additionally arranged in the branch pipeline, and the incremental water which is output by the cooling tower 48 and contains the oxygen, salt and oil colloid removed is sent to the normal-pressure gasification furnace 41 after being subjected to evaporation treatment; therefore, under the condition that the cooling water accumulated in the cooling tower 48 is excessive, the excessive waste water is converted into steam by the evaporator 58 and then is sent into the normal pressure gasification furnace 41 to participate in the gasification of the lump coal.
Compared with the common low-pressure coal gas multi-pollution-source integrated treatment system and treatment process which are commonly used in China at present, the common low-pressure coal gas multi-pollution-source integrated treatment system and treatment process provided according to the technical scheme have the following advantages: the whole treatment device forms a set of integral water gas and gas system without three wastes, which not only provides technical equipment for solving the problem of pollution source-free discharge of domestic gas manufacturers, but also provides powerful technical support for improving the environmental protection quality.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention;
FIG. 2 is a schematic structural view of a self-cleaning filter;
FIG. 3 is a schematic structural diagram of another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a conventional lump coal gasification process system.
In the figure: 41-atmospheric gasification furnace 42-cyclone separator 43-waste heat boiler 17-self-cleaning filter 45-ash bin 46-direct cooling tower 47-control pump 48-cooling tower 49-conveyor 50-sensing detection control unit 51-pressure atomization unit 52-inlet cut-off valve assembly 53-outlet cut-off valve assembly 54, backwashing backflushing unit 55-filtering unit 56-waste material conveying main pipe 57-branch pipeline 58-evaporator 59-shell.
Detailed Description
The invention is further explained and the embodiment of the invention is given below by combining the attached drawings of the specification.
The integrated treatment system for multiple pollution sources of the normal and low pressure coal gas as shown in fig. 1-3 is a creative improvement of the conventional normal and low pressure coal gas making process which is generally adopted at present.
Example 1
The normal-pressure and low-pressure coal gas multi-pollution source integrated treatment system comprises four working procedures of normal-pressure gasification, cyclone separation, waste heat recovery, washing separation and cooling recovery, wherein a set of washing separation working procedure consisting of a self-cleaning filter 17 and an ash bin 45 and a cooling recovery working procedure consisting of a direct cooling tower 46 and a cooling tower 48 which are respectively communicated with a waste heat boiler 43 and the self-cleaning filter 17 are additionally arranged after the waste heat recovery working procedure; therefore, the normal and low pressure coal gas multi-pollution source integrated treatment system without pollution leakage is formed.
The inlet of the self-cleaning filter 17 is connected with the hot gas outlet of the waste heat boiler 43 to obtain waste heat high-temperature gas cooled by the waste heat boiler, the output interface at the upper part of the self-cleaning filter 17 is connected with a direct cooling tower 46 in the cooling and recycling process, the output interface at the lower part of the self-cleaning filter 17 is connected with an ash bin 45 through a conveyor 49 to realize the conveying of waste in the self-cleaning process, and the ash bin 45 discharges accumulated ash together with the ash generated in the upstream process through a conveying pipeline.
The direct cooling tower 46 is provided with four external interfaces, wherein a first input interface a arranged at the bottom of the lower part of the tower body is connected with an upper output interface of the self-cleaning filter, an upper output interface b of the direct cooling tower 46 is a coal gas output interface which is directly connected and goes to the working procedure, the cooling tower 48 is provided with three interfaces, and a second output interface F is connected with a second input interface c on the direct cooling tower 46 through a control pump 47; the input interface E of the cooling tower 48 is connected with the first output interface d at the lower part of the direct cooling tower 46, thereby forming a closed cooling loop between the direct cooling tower 46 and the cooling tower 48; at the same time, the other connection G of the cooling tower 48 communicates with the waste heat boiler 43.
The self-cleaning filter 17 comprises a shell 59, a sensing detection control unit 50, a pressure atomization unit 51, an inlet stop valve assembly 52, an outlet stop valve assembly 53, a backwashing backflushing unit 54 and a filter unit 55, wherein the filter unit 55 is arranged on the middle upper part of the self-cleaning filter and plays a role in filtering from bottom to top.
Example 2
As a further improvement of the above system, in addition to the conventional embodiment 1, a branch line 57 directly connected to the atmospheric gasification furnace 41 is additionally provided to the main line of the cooling tower 48 communicating with the waste heat boiler 43, and an evaporator 58 is further provided to the branch line, so that the incremental water containing the oxygen, salt and oil colloid removed and outputted from the cooling tower 48 is evaporated and fed to the atmospheric gasification furnace 1.
A multi-pollution source integrated treatment system for normal and low pressure coal gas production comprises the following process flows:
A. the lump coal entering the normal pressure gasification furnace 41 forms raw coke oven gas with the temperature of about 350 ℃ under the action of oxygen and water vapor, and the formed raw coke oven gas is continuously input into the cyclone separator 42; under the cyclone separation action, mixed gas containing dust with smaller mass is guided into a waste heat boiler 43 through an output pipeline arranged at the upper part of a cyclone separator for cooling treatment, then the raw gas after cooling treatment enters an inner cavity of a shell of a self-cleaning filter from bottom to top through a conveying pipeline connected with an inlet stop valve component 52 on the self-cleaning filter 17, after particles, salt and aerosol mixed in the raw gas are filtered through the filtering treatment of a filtering unit 55, the raw gas is connected to a first input interface a of a direct cooling tower 46 through an outlet stop valve component 53 arranged at the upper part of the self-cleaning filter and a conveying pipeline connected with the outlet stop valve component 53, and water gas is conveyed to a subsequent process from an output interface b at the upper part of the direct cooling tower 46 after water cooling treatment in the direct cooling tower 46; meanwhile, the direct cooling tower 46 is communicated with an interface E of the cooling tower through a pipeline arranged on an output interface d at the bottom, and is communicated with a second input interface c of the direct cooling tower 46 through a second output interface F of the cooling tower 48 and a control pump 47 arranged on the output pipeline to form a closed cold source loop;
B. while the step A is carried out, the particle impurities discharged by the self-cleaning filter 17 and deposited in the lower cavity are communicated with the inner cavity of the ash bin 45 through an output pipeline connected with the self-cleaning filter 17 and a conveying device arranged in the pipeline, and are discharged to a waste material conveying main pipe 56 through the lower output pipeline of the ash bin for transportation;
C. when the step A, B is performed, two output interfaces H, I and one input interface J are arranged on the lower furnace body of the waste heat boiler 43, the output interface H is communicated with the inner cavity of the normal pressure gasification furnace 41 through an output pipeline, and the input interface J of the waste heat boiler 43 is connected with the other interface G of the cooling tower 48 through a connecting pipeline;
D. while the step A, B, C is being performed, the atmospheric gasifier 41, the cyclone 42, the waste heat boiler 43, and the ash silo 45 transport slag and ash having a calorific value generated during their operations to a waste collecting point through the waste discharge pipes, respectively, via the waste transport header 56.
As a further improvement of the normal-pressure and low-pressure coal gas production, a branch pipeline 57 directly connected to the normal-pressure gasification furnace 41 is additionally arranged on a main pipeline communicated to the waste heat boiler 43 through the cooling tower 48 in the treatment process, an evaporator 58 is additionally arranged in the branch pipeline, and the incremental water which is output by the cooling tower 48 and contains the oxygen, salt and oil colloid removed is sent to the normal-pressure gasification furnace 41 after being subjected to evaporation treatment; therefore, under the condition that the cooling water accumulated in the cooling tower 48 is excessive, the excessive waste water is converted into steam by the evaporator 58 and then is sent into the normal pressure gasification furnace 41 to participate in the gasification of the lump coal.
Practical use shows that:
according to the integrated treatment system for multiple pollution sources in the normal and low pressure coal gas production, a plurality of independent devices of a complete set of equipment for producing water gas form a process flow almost close to full sealing, so that sewage, ash, waste gas and the like which may appear in each process flow can be completely formed into a closed process ring; the leakage of various pollutants such as water, gas, ash and the like in the operation of the traditional normal-low pressure coal gas making equipment is completely and effectively solved. Has great positive significance for protecting production environment and even urban environment.
The above is only the basic implementation method given by the applicant according to the technical scheme, and does not represent the whole of the invention; any technical personnel in the same industry who do not have the same kind of technology of substantive improvement according to this technical scheme all should be regarded as belonging to the protection scope of the utility model.
Claims (6)
1. A normal-low pressure coal gas multi-pollution source integrated treatment system comprises four working procedures of normal pressure gasification, cyclone separation, waste heat recovery, washing separation and cooling recovery, and is characterized in that a set of washing separation working procedure consisting of a self-cleaning filter (17) and an ash bin (45) and a cooling recovery working procedure consisting of a direct cooling tower (46) and a cooling tower (48) which are respectively communicated with a waste heat boiler (43) and the self-cleaning filter (17) are additionally arranged after the waste heat recovery working procedure; therefore, the multi-pollution source integrated treatment system for the normal-low pressure coal gas is formed.
2. The normal-low pressure coal gas multi-pollution-source integrated treatment system as claimed in claim 1, wherein an inlet of the self-cleaning filter (17) is connected with a hot gas outlet of the waste heat boiler (43) to obtain waste heat high-temperature gas cooled by the waste heat boiler, an upper output interface of the self-cleaning filter (17) is connected with a direct cooling tower (46) in a cooling and recycling process, a lower output interface of the self-cleaning filter (17) is connected with an ash bin (45) through a conveyor (49) to convey waste in a self-cleaning process, and the ash bin (45) discharges accumulated ash together with ash generated in an upstream process through a conveying pipeline.
3. The integrated treatment system for multiple pollution sources in normal low pressure coal gas as claimed in claim 1, wherein the direct cooling tower (46) is provided with four external connectors, wherein a first input connector (a) arranged at the bottom of the lower part of the tower body is connected with an upper output connector of the self-cleaning filter, an upper output connector (b) of the direct cooling tower (46) is a coal gas output connector which is directly connected with the next working procedure, the cooling tower (48) is provided with three connectors, and a second output connector (F) is connected with a second input connector (c) on the direct cooling tower (46) through a control pump (47); an input interface (E) of the cooling tower (48) is connected with a first output interface (d) at the lower part of the direct cooling tower (46), thereby forming a closed cooling loop between the direct cooling tower (46) and the cooling tower (48); at the same time, the other port (G) of the cooling tower (48) is communicated with a waste heat boiler (43).
4. The normal-low pressure coal gas multi-pollution-source integrated treatment system as claimed in claim 1, wherein the self-cleaning filter (17) comprises a housing (59), a sensing detection control unit (50), a pressure atomization unit (51), an inlet cut-off valve assembly (52), an outlet cut-off valve assembly (53), a backwashing backflushing unit (54) and a filtering unit (55), and the filtering unit (55) is arranged at the middle upper part of the self-cleaning filter.
5. The integrated treatment system for multiple pollution sources in normal-low pressure coal gas as claimed in claim 1, wherein a branch pipeline (57) directly connected to the normal-pressure gasification furnace (1) is arranged on a main pipeline communicated with the waste heat boiler (43) of the cooling tower (48), an evaporator (58) is arranged in the branch pipeline, and the incremental water which is output by the cooling tower (48) and contains the oxygen, salt and oil colloid removed is sent to the normal-pressure gasification furnace (1) after being subjected to evaporation treatment.
6. The multi-pollution-source integrated treatment system for the normal-low pressure coal gas as claimed in claim 4, wherein an inlet of the self-cleaning filter (17) is connected with a hot gas outlet of the waste heat boiler (43) to obtain the waste heat high-temperature gas cooled by the waste heat boiler.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821934326 | 2018-11-22 | ||
| CN2018219343261 | 2018-11-22 |
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| Publication Number | Publication Date |
|---|---|
| CN210134067U true CN210134067U (en) | 2020-03-10 |
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| CN201910451629.0A Active CN110129096B (en) | 2018-11-22 | 2019-05-28 | Integrated treatment system and method for multiple pollution sources of coal gas |
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| CN201921582294.8U Active CN211546442U (en) | 2018-11-22 | 2019-09-23 | Self-cleaning filter and system thereof |
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| CN110734785B (en) * | 2018-11-22 | 2024-05-24 | 上海境业环保能源科技股份有限公司 | Multi-pollution-source integrated treatment system for coal gas |
| CN111102672A (en) * | 2020-02-25 | 2020-05-05 | 哈尔滨中科天德节能环保科技有限公司 | Indoor environment improvement integration equipment and supporting system |
| CN112226250B (en) * | 2020-12-15 | 2021-03-02 | 上海境业环保能源科技股份有限公司 | Coal gas multi-pollutant purification treatment system |
| CN115180743B (en) * | 2022-07-27 | 2023-04-07 | 东莞市珀蓝特机电设备有限公司 | Automatic cleaning device for cooling tower |
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| JP4657830B2 (en) * | 2005-06-24 | 2011-03-23 | クリーン・テクノロジー株式会社 | Dust collector with filter self-cleaning function |
| RU2426769C1 (en) * | 2007-05-14 | 2011-08-20 | Кеда Индастриал Ко., Лтд. | Gas generator system with coal circulating fluidised bed |
| CN201190153Y (en) * | 2008-04-14 | 2009-02-04 | 山东联合能源技术有限公司 | Integrated gasification combined cycle thermoelectric oil gas multiple production system in high-efficiency clean zone |
| CN202430081U (en) * | 2011-12-20 | 2012-09-12 | 太原众联达机械设备有限公司 | Phenol water disposal device in gas station |
| CN103834441B (en) * | 2014-03-19 | 2015-11-25 | 河北凯跃化工集团有限公司 | A kind of gasification production waste recoverying and utilizing method |
| CN104677171B (en) * | 2015-03-19 | 2016-06-15 | 山东钢铁股份有限公司 | A kind of self-cleaning cooling tower air filter |
| CN104785023B (en) * | 2015-03-31 | 2017-05-10 | 陕西美斯林能源科技研究院 | Self-cleaning high-temperature oil gas filter dust-removal process device and method |
| CN104804774B (en) * | 2015-04-21 | 2017-06-06 | 北京神雾环境能源科技集团股份有限公司 | A kind of method and apparatus for preparing combustion gas as raw material with dirty coal |
| CN204918494U (en) * | 2015-07-14 | 2015-12-30 | 彭万旺 | Coal gasification apparatus for producing of fixed bed and fluidized bed |
| CN106221812A (en) * | 2016-09-19 | 2016-12-14 | 中国科学院山西煤炭化学研究所 | A kind of technique for the cooling dedusting of fluid bed High Temperature High Pressure coal gas |
| CN207227361U (en) * | 2017-09-15 | 2018-04-13 | 安徽吉德环保科技有限公司 | A kind of clarifier of biomass gas processing |
| CN108102718A (en) * | 2018-01-02 | 2018-06-01 | 神华集团有限责任公司 | Dry pulverized coal gives up pan gas system and method |
| CN207793182U (en) * | 2018-01-31 | 2018-08-31 | 新能凤凰（滕州）能源有限公司 | Coal water slurry gasification system |
| CN110129097B (en) * | 2018-11-22 | 2024-01-16 | 上海境业环保能源科技股份有限公司 | Integrated treatment system and method for multiple pollution sources of coal gas with dividing wall type cooler |
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| CN211471320U (en) | 2020-09-11 |
| CN110129097B (en) | 2024-01-16 |
| CN110129097A (en) | 2019-08-16 |
| CN110129096A (en) | 2019-08-16 |
| CN211546442U (en) | 2020-09-22 |
| CN210595945U (en) | 2020-05-22 |
| CN110129096B (en) | 2023-07-25 |
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