CN114177733B - System for separating coal and water for coal bed gas drainage and gas production and purifying water and control method - Google Patents
System for separating coal and water for coal bed gas drainage and gas production and purifying water and control method Download PDFInfo
- Publication number
- CN114177733B CN114177733B CN202111453121.8A CN202111453121A CN114177733B CN 114177733 B CN114177733 B CN 114177733B CN 202111453121 A CN202111453121 A CN 202111453121A CN 114177733 B CN114177733 B CN 114177733B
- Authority
- CN
- China
- Prior art keywords
- water
- coal
- gas
- separation
- tower
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 151
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 149
- 238000000926 separation method Methods 0.000 claims abstract description 116
- 238000001035 drying Methods 0.000 claims abstract description 53
- 238000000746 purification Methods 0.000 claims abstract description 43
- 239000007787 solid Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000008235 industrial water Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims description 21
- 238000004064 recycling Methods 0.000 claims description 17
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 20
- 238000011161 development Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000011065 in-situ storage Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
Abstract
The invention discloses a system and a control method for separating coal and water in coal bed gas drainage and gas production, wherein a gas, water and coal mixture is subjected to gas separation and collection to generate a first-stage intermediate, the gas is collected, the first-stage intermediate is further separated by a multi-stage solid separation system, suspension is sent into a multi-stage water purification system to form a second-stage intermediate, the second-stage intermediate is discharged and collected after being dried by a coal slime drying system, the liquid purified by the multi-stage water purification system after the suspension formed by the separation of the first-stage intermediate can be discharged into an industrial water system for reuse, and meanwhile, a third-stage intermediate is formed, and the third-stage intermediate is returned to the gas separation and collection system again to repeat the separation steps.
Description
Technical Field
The invention belongs to the field of chemical separation equipment, and particularly relates to a system and a control method for coal bed gas drainage, gas production, water-coal separation and water purification.
Background
Along with the rapid increase of the economy in China, the demand for energy is larger and larger, the contradiction between supply and demand of petroleum and natural gas in China exists for a long time, and if the conventional oil gas supply is only used, the demand of rapid development of the economy in China is difficult to meet, so that the development of the unconventional oil gas industry becomes an effective method for solving the energy safety problem in China.
The extensive development of the structural coal and the enrichment of the structural coal and the coalbed methane resources in China are remarkable characteristics of the Chinese coal and the coalbed methane resources, and the Chinese coalbed methane resources are large in quantity and are the most realistic and reliable unconventional oil gas resources at present. The development of the coalbed methane has important significance for relieving the shortage of oil and gas resources in China, reducing the disaster degree of mines, reducing the emission of greenhouse gases and the like. Coalbed methane is mainly methane gas which is adsorbed and exists in a coalbed, belongs to unconventional natural gas and is also called gas in a coal mine area. The development area of the structural coal is a forbidden area for in-situ coalbed methane development at present, and no deep report is made on the development of the structural coal by adopting in-situ coalbed methane. The development of the coal bed gas tends to generate a large amount of gas-water-coal mixture, so that the realization of the efficient full-automatic separation and collection of the gas-water-coal is a difficult problem in the development process of the in-situ coal bed gas horizontal well adopted in the development area of the structural coal.
Disclosure of Invention
The invention aims to provide a system and a control method for separating gas, water and coal from coal bed gas drainage and water purification, and solves the technical problem that a gas, water and coal mixture cannot be separated in the prior art.
The technical scheme adopted for solving the technical problems is as follows:
the invention relates to a system for separating coal from water and purifying water in coal bed gas drainage gas production, which comprises: the system comprises a gas separation and collection system, a multi-stage solid separation system, a coal slime drying system and a multi-stage water purification and recycling system, wherein the gas separation and collection system is used for separating and collecting a gas, water and coal three-phase mixture to form a first-stage intermediate, the first-stage intermediate enters the multi-stage solid separation system, the multi-stage solid separation system is used for further separating the first-stage intermediate, collecting the gas, sending liquid into the multi-stage water purification and recycling system to form a second-stage intermediate, the second-stage intermediate enters the coal slime drying system to be dried and separated to form a dried coal slime discharging system, the liquid formed by the separation of the first-stage intermediate enters the multi-stage water purification and recycling system to be purified and discharged into an industrial water system to be recycled, and meanwhile, the third-stage intermediate returns to the gas separation and collection system again to repeat the separation steps, and actions of the gas separation and collection system, the multi-stage solid separation system, the coal slime drying system and the multi-stage water purification and recycling system are controlled through a control system.
The invention discloses a system for separating coal from water and purifying water in coal bed gas drainage and gas production, which comprises a gas separation box, wherein the gas separation box is provided with a feeding pipeline, a feeding valve is arranged on the feeding pipeline, the gas separation box is connected with a water washing box through a pipeline, the top of the water washing box is connected with a plurality of gas collecting devices, the inlet of each gas collecting device is provided with a valve, a feeding vibrating device is arranged in the gas separation box, and the bottom of the gas separation box is connected with a multi-stage solid separation system through an electric valve.
The invention relates to a system for separating coal from water and purifying water in coal bed gas drainage and gas production, wherein a high-level sensor is arranged in a gas separation box.
The invention discloses a system for separating coal bed gas, water and coal and purifying water, which comprises a separation tower, wherein the top of the separation tower is connected with an electric valve, the separation tower is connected with a multi-stage water purification and recycling system through a tower bottom water and coal lifting pump, a plurality of filters are arranged in the middle of the separation tower, the filters divide the separation tower into a plurality of separation spaces from top to bottom, a vibrating device is arranged in each separation space, and the side surface of each separation space is communicated with a coal slime drying system through the electric valve.
The invention relates to a system for separating coal and water from coal for coal bed gas drainage and gas production and purifying water.
The invention discloses a system for separating water from coal and purifying water in coal bed gas drainage and gas production, which comprises a coal slime drying tower, wherein the coal slime drying tower is communicated with a plurality of electric doors, heating and drying equipment is arranged in the coal slime drying tower, a coal cleaning door is arranged at the bottom of the coal slime drying tower, a weighing equipment is arranged above the coal cleaning door, and the coal slime drying tower is connected with a water washing box through a pipeline.
The invention relates to a system for separating water from coal and purifying water in coal bed gas drainage and production, wherein a thermometer is arranged in a coal slime drying tower.
The invention relates to a system for separating coal from water and purifying water in coal bed gas drainage gas production, which comprises: the multi-header, multi-header one end is connected with tower bottom water coal elevator pump, tower bottom water coal elevator pump's exit is provided with the purification valve, multi-header's exit end is connected with the water collecting tank, be equipped with industry water discharge pump in the water collecting tank, be equipped with a plurality of grades of filter screens between multi-header's import and the export, a plurality of the filter screen divide into a plurality of water purification spaces with multi-header, each all have the bottom of the case pressure gauge in the water purification space, each water purification space bottom is through purifying water electrically operated gate and wet return intercommunication, the last coal slime delivery pump that has of wet return, coal slime delivery pump passes through pipeline and gas separation case intercommunication.
According to the control method for the system for separating water from coal and purifying water in coal bed gas drainage and production, a mixture of gas, water and coal enters a gas separation tank through a feeding pipeline under the control of a feeding valve, after gas enters a water washing phase for washing, a gas collecting device collects the gas after washing, when one gas collecting device is full, the gas collecting device is automatically switched to another gas collecting device to collect the gas through the control of the valve, a first-stage intermediate is formed at the moment, the first-stage intermediate is stored in the gas separation tank to carry out primary precipitation, a high-level sensor is arranged on the tank wall of the gas separation tank, when the first-stage intermediate reaches a high level, an electric valve at the bottom of an instruction tank is started after the control system receives a high-level signal of the first-stage intermediate in the gas separation tank, a feeding vibrating device is started, the first-stage intermediate enters a separation tower, and after feeding is finished, the electric valve at the bottom of the instruction tank is controlled by the control system and the feeding device is closed;
at the moment, the first-stage intermediate is positioned in the separating tower, the control system sends out a command to start a vibrating device positioned on the tower wall in the separating tower to reach a set time, a second-stage intermediate is formed, an electric door (24) connected with the coal slime drying tower is opened at the moment, the second-stage intermediate enters the coal slime drying tower, meanwhile, liquid in the separating tower is filtered into the tower bottom, the pressure measured by the tower bottom pressure measuring instrument is transmitted into the control system, the actual pressure is not smaller than the target pressure and lasts for a certain period of time, the control system sends out a command to start a water-coal lifting pump at the tower bottom, and the filtered liquid in the separating tower is pumped into the multi-header;
the coal slime drying tower dries the secondary intermediate, wherein the temperature of the coal slime measured by the temperature measuring instrument reaches a set target value, and the change rate of data read by the weighing equipment is smaller than the set value, a control system sends a command for opening a coal cleaning door to collect coal formed by drying the secondary intermediate, and gas separated out during the drying of the secondary intermediate is collected by the gas collecting device after being washed by the washing tank;
the multi-header processes the water coal suspension pumped by the water coal lifting pump at the bottom of the tower, the control system receives and compares the measured data of the tank bottom pressure measuring instrument at the bottom of each independent water purifying space, if the measured data reach a set target value, the purifying electric door connected with the liquid return pipeline at the bottom of the tank corresponding to each independent water purifying space is opened, the coal slime conveying pump is opened, the formed three-level intermediate is pumped into the gas separation tank for circulation processing, the multi-header finally overflows into the water collecting tank for collection, the liquid level of the water collecting tank reaches the set target value, and the industrial water discharging pump pumps the water in the water collecting tank into the industrial water system in the mine to realize zero discharge for circulation use.
The invention has the beneficial effects that: the control method and the control system for the gas, water and coal separation and water purification of the coal bed gas drainage and production, which are used for realizing full automation of gas, water and coal full-automatic multistage separation and collection and zero-discharge water purification treatment in the development process of the gas, water and coal drainage and pressure relief of the horizontal well of the coal bed gas in situ, can realize full automation of the gas, water and coal multistage separation and collection and zero-discharge water purification treatment, greatly reduce the number of personnel and the labor intensity of personnel, and greatly improve the production efficiency on the premise of ensuring the fine separation quality.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a general control flow diagram of a system of an embodiment of the present invention;
FIG. 3 is a control flow diagram of a gas separation and collection system according to an embodiment of the present invention;
FIG. 4 is a control flow diagram of a multi-stage solids separation system in accordance with an embodiment of the invention;
FIG. 5 is a control flow diagram of a slime drying system according to an embodiment of the present invention;
fig. 6 is a control flow diagram of a multi-stage water purification reuse system according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-6, a system and a control method for coal bed gas drainage, gas production, water-coal separation and water purification, comprising: the system comprises a gas separation and collection system 1, a multi-stage solid separation system 2, a coal slime drying system 3 and a multi-stage water purification and recycling system 4, wherein the gas separation and collection system 1 is used for separating and collecting a three-phase mixture of gas, water and coal to collect the gas and form a first-stage intermediate, the first-stage intermediate enters the multi-stage solid separation system 2, the multi-stage solid separation system 2 is used for further separating the first-stage intermediate, collecting the gas, sending liquid into the multi-stage water purification and recycling system 4 and forming a second-stage intermediate, the second-stage intermediate enters the coal slime drying system 3 to be dried and separated to form a dried coal slime discharging system, the liquid formed by separating the first-stage intermediate enters the multi-stage water purification and recycling system 4 and is discharged into an industrial water system to be recycled, meanwhile, the third-stage intermediate returns to the gas separation and collection system 1 again, and the actions of the gas separation and collection system 1, the multi-stage solid separation system 2, the coal slime drying system 3 and the multi-stage water purification and recycling system 4 are controlled through a control system.
In a preferred embodiment of the present invention, the gas separation and collection system 1 comprises a gas separation tank 19, the gas separation tank 19 is provided with a feeding pipeline 11, the feeding pipeline 11 is provided with a feeding valve 12, the gas separation tank 19 is connected with a washing tank 14 through a pipeline, the top of the washing tank 14 is connected with a plurality of gas collection devices 15, a valve 18 is arranged at the inlet of the gas collection devices 15, a feeding vibrating device 17 is arranged in the gas separation tank 19, the bottom of the gas separation tank 19 is connected with the multi-stage solid separation system 2 through an electric valve 13, and the bottom of the washing tank 14 is connected with an output water pump 16.
In a preferred embodiment of the invention, a high level sensor is provided in the gas separation tank 19.
In the preferred embodiment of the invention, the multi-stage solid separation system 2 comprises a separation tower 26, the top of the separation tower 26 is connected with an electric valve 13, the separation tower 26 is connected with the multi-stage water purification and reuse system 4 through a tower bottom water coal lifting pump 23, a plurality of filters 21 are arranged in the middle of the separation tower 26, the filters 21 divide the separation tower 26 into a plurality of separation spaces from top to bottom, a rapping device 25 is arranged in each separation space, and the side surface of each separation space is communicated with the coal slime drying system 3 through an electric valve 24.
In the preferred embodiment of the invention, the bottom of the separation column 26 has a bottom load cell 22.
In a preferred embodiment of the present invention, the slime drying system 3 comprises a slime drying tower 34, the slime drying tower 34 is communicated with a plurality of electric doors 24, a heating and drying device 33 is arranged in the slime drying tower 34, a coal cleaning door 32 is arranged at the bottom of the slime drying tower 34, a weighing device 31 is arranged above the coal cleaning door 32, and the slime drying tower 34 is connected with the washing tank 14 through a pipeline.
In a preferred embodiment of the present invention, the coal slime drying tower 34 is provided with a temperature measuring instrument 35.
In a preferred embodiment of the present invention, the multi-stage water purification and reuse system 4 includes: the multi-header 48, multi-header 48 one end is connected with tower bottom water coal elevator pump 23, the exit of tower bottom water coal elevator pump 23 is provided with purge valve 41, the exit of multi-header 48 is connected with water collecting tank 44, be equipped with industry water discharge pump 45 in the water collecting tank 44, be equipped with a plurality of grades of filter screens 42 between the import and the export of multi-header 48, a plurality of filter screens 42 divide into a plurality of water purification spaces with multi-header 48, every have bottom of the tank pressure gauge 47 in the water purification space, every water purification space bottom is through purifying water electric door 46 and wet return intercommunication, have coal slime delivery pump 43 on the wet return, coal slime delivery pump 43 communicates with gas separation case 19 through the pipeline.
In the preferred embodiment of the invention, a mixture of gas, water and coal enters a gas separation tank 19 through a feed pipeline 11 under the control of a feed valve 12, after the gas enters a water washing phase 14 for washing, a gas collecting device 15 collects the gas after washing, when one gas collecting device 15 is full, the gas is automatically switched to the other gas collecting device 15 for collecting under the control of a valve 18, a first-stage intermediate is formed at the moment, the first-stage intermediate is stored in the gas separation tank 19 for primary precipitation, a high-level sensor is arranged on the wall of the gas separation tank 19, when the first-stage intermediate reaches a high level, a control system receives a high-level signal of the first-stage intermediate in the gas separation tank 19, an electric valve 13 which sends out a command tank bottom is opened, a feed rapping device 17 is opened, the first-stage intermediate enters a separation tower 26, and after the feeding is finished, the electric valve 13 which sends out the command tank bottom and the feed rapping device 17 are closed;
at this time, the primary intermediate is positioned in the separating tower 26, the control system sends out a command to start a rapping device 25 positioned on the tower wall in the separating tower 26 to reach a set time, a secondary intermediate is formed, an electric door (24) connected with the coal slime drying tower 34 is opened at this time, the secondary intermediate enters the coal slime drying tower 34, meanwhile, liquid in the separating tower 26 is filtered into the tower bottom, the pressure measured by the tower bottom pressure measuring instrument 22 is transmitted into the control system, the actual pressure is not less than the target pressure and lasts for a certain period of time, the control system sends out a command to start a tower bottom water-coal lifting pump 23, and the filtered liquid in the separating tower 26 is pumped into the multi-header 48;
the coal slime drying tower 34 dries the secondary intermediate, wherein the temperature of the coal slime measured by the temperature measuring instrument 35 reaches a set target value, and the change rate of data read by the weighing equipment 31 is smaller than the set value, the control system sends an instruction of opening the coal cleaning door 32 to collect coal formed by drying the secondary intermediate, and gas separated out during the drying of the secondary intermediate is collected by the gas collecting device 15 after being washed by the washing tank 14;
the multi-header 48 processes the water-coal suspension pumped by the tower bottom water-coal lifting pump 23, the control system receives and compares the measured data of the tank bottom pressure gauge 47 at the bottom of each independent water purifying space, if the measured data reach the set target value, the purifying electric door 46 connected with the liquid return pipeline at the bottom of the tank corresponding to each independent water purifying space is opened, the coal slime conveying pump 43 is opened, the formed three-level intermediate is pumped into the gas separation tank 19 for circulation treatment, the multi-header 48 finally overflows water and flows into the water collecting tank 44 for collection, the liquid level of the water collecting tank 44 reaches the set target value, and the industrial water discharging pump 45 pumps the water in the water collecting tank 44 into the industrial water system in the mine to realize zero discharge for circulation use.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (7)
1. A system for coal bed gas drainage gas water coal separation and water purification, characterized by comprising: the gas separation and collection system (1), the multi-stage solid separation system (2), the coal slime drying system (3) and the multi-stage water purification and recycling system (4), the gas separation and collection system (1) is used for separating and collecting a three-phase mixture of gas, water and coal, collecting the gas and forming a one-stage intermediate, the one-stage intermediate enters the multi-stage solid separation system (2), the multi-stage solid separation system (2) is used for further separating the one-stage intermediate, collecting the gas, sending the liquid into the multi-stage water purification and recycling system (4) and forming a two-stage intermediate, the two-stage intermediate enters the coal slime drying system (3) and forms a dried coal slime discharging system after being dried and separated, the liquid formed by separating the one-stage intermediate enters the multi-stage water purification and recycling system (4) and is discharged into the industrial water system for recycling, meanwhile, the three-stage intermediate is formed, the three-stage intermediate returns to the gas separation and collection system (1) again, the multi-stage solid separation and collection system (1), the multi-stage solid separation system (2), the coal slime drying system (3) and the multi-stage water purification and recycling system (4) are used for recycling the separation, the control system (26) is used for separating the solids through the control tower (26), the control system (13), the utility model provides a coal slime drying system (3) is connected through tower bottom water coal elevator pump (23) and multistage water purification recycling system (4), separation tower (26) middle part has a plurality of filters (21), filter (21) divide into a plurality of separation spaces with separation tower (26) top-down, each in the separation space have rapping device (25), each separation space side is through electric door (24) and coal slime drying system (3) intercommunication, multistage water purification recycling system (4) include: the multi-header (48), multi-header (48) one end is connected with tower bottom water coal elevator pump (23), the exit of tower bottom water coal elevator pump (23) is provided with purification valve (41), the exit of multi-header (48) is connected with water collecting tank (44), be equipped with industry water discharge pump (45) in water collecting tank (44), be equipped with a plurality of grades of filter screen (42) between the import and the export of multi-header (48), a plurality of filter screen (42) divide into multi-header (48) into a plurality of water purification space, each have bottom of the case pressure gauge (47) in the water purification space, each water purification space bottom is through purifying water electric door (46) and wet return intercommunication, have coal slime delivery pump (43) on the wet return, coal slime delivery pump (43) are through pipeline and gas separation case (19) intercommunication.
2. The system for coal bed gas drainage, gas production, water and coal separation and water purification according to claim 1, wherein the gas separation and collection system (1) comprises a gas separation tank (19), the gas separation tank (19) is provided with a feeding pipeline (11), the feeding pipeline (11) is provided with a feeding valve (12), the gas separation tank (19) is connected with a water washing tank (14) through a pipeline, the top of the water washing tank (14) is connected with a plurality of gas collection devices (15), a valve (18) is arranged at the inlet of the gas collection devices (15), a feeding rapping device (17) is arranged in the gas separation tank (19), and the bottom of the gas separation tank (19) is connected with the multi-stage solid separation system (2) through an electric valve (13).
3. The system for coal bed gas drainage, gas production, water and coal separation and water purification according to claim 2, characterized in that a high level sensor is arranged in the gas separation tank (19).
4. A system for coal bed gas drainage gas production water coal separation and water purification according to claim 3, characterized in that the bottom of the separation column (26) has a bottom load cell (22).
5. The system for coal bed gas drainage, gas production, water and coal separation and water purification according to claim 4, wherein the coal slime drying system (3) comprises a coal slime drying tower (34), the coal slime drying tower (34) is communicated with a plurality of electric doors (24), a heating and drying device (33) is arranged in the coal slime drying tower (34), a coal cleaning door (32) is arranged at the bottom of the coal slime drying tower (34), a weighing device (31) is arranged above the coal cleaning door (32), and the coal slime drying tower (34) is connected with a water washing tank (14) through a pipeline.
6. The system for coal bed gas drainage, gas production, water and coal separation and water purification according to claim 5, wherein a temperature detector (35) is arranged in the coal slime drying tower (34).
7. The control method for a system for separating water from coal bed gas and purifying water, according to claim 6, characterized in that the mixture of gas, water and coal enters the gas separation tank (19) through the feed valve (12) by control of the feed pipe (11), after the gas enters the water washing tank (14) for washing, the gas collecting device (15) collects the washed gas, when one gas collecting device (15) is full, the gas collecting device (15) is automatically switched to the other gas collecting device (15) by control of the valve (18) for collection, at the moment, a first-stage intermediate is formed, the first-stage intermediate is stored in the gas separation tank (19) for primary precipitation, a high level sensor is installed on the tank wall of the gas separation tank (19), when the first-stage intermediate reaches the high level, the control system receives the high level signal of the first-stage intermediate in the gas separation tank (19), the electric valve (13) for sending the command tank bottom is opened, the feed device (17) is opened, and when the first-stage intermediate enters the separation tank (26), the control system sends the command tank bottom (13) for the command after the feed is rapping is completed, and the rapping device (17) is closed;
at the moment, the primary intermediate is positioned in the separating tower (26), the control system sends out a command to start a rapping device (25) positioned on the tower wall in the separating tower (26) to reach a set time, a secondary intermediate is formed, an electric door (24) connected with the coal slime drying tower (34) is opened at the moment, the secondary intermediate enters the coal slime drying tower (34), meanwhile, liquid in the separating tower (26) is filtered into the tower bottom, the pressure measured by the tower bottom pressure measuring instrument (22) is transmitted into the control system, compared with a target value, the actual pressure is not smaller than the target pressure and lasts for a certain period of time, the control system sends out a command to start a tower bottom water-coal lifting pump (23), and the filtered liquid in the separating tower (26) is pumped into the multi-header (48);
the coal slime drying tower (34) dries the secondary intermediate, wherein the temperature of the coal slime measured by the temperature measuring instrument (35) reaches a set target value, and the change rate of data read by the weighing equipment (31) is smaller than the set value, a control system sends an opening command for opening the coal cleaning door (32) to collect coal formed by drying the secondary intermediate, and gas separated out during the drying of the secondary intermediate is collected by the gas collecting device (15) after being washed by the water washing box (14);
the multi-header (48) processes the water coal suspension pumped by the tower bottom water coal lifting pump (23), the control system receives and compares the measured data of the tank bottom pressure measuring instrument (47) at the bottom of each independent water purifying space, if the measured data reach a set target value, the purified water electric door (46) connected with the liquid return pipeline at the bottom of the tank body corresponding to each independent water purifying space is opened, the coal slime conveying pump (43) is opened, the formed three-stage intermediate is pumped into the gas separation tank (19) for circulation treatment, the multi-header (48) finally overflows and flows into the water collecting tank (44) for collection, the liquid level of the water collecting tank (44) reaches the set target value, and the industrial water discharging pump (45) pumps the water in the water collecting tank (44) into the industrial water system in the mine to realize zero discharge for circulation use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111453121.8A CN114177733B (en) | 2021-12-01 | 2021-12-01 | System for separating coal and water for coal bed gas drainage and gas production and purifying water and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111453121.8A CN114177733B (en) | 2021-12-01 | 2021-12-01 | System for separating coal and water for coal bed gas drainage and gas production and purifying water and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114177733A CN114177733A (en) | 2022-03-15 |
| CN114177733B true CN114177733B (en) | 2023-06-09 |
Family
ID=80541074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111453121.8A Active CN114177733B (en) | 2021-12-01 | 2021-12-01 | System for separating coal and water for coal bed gas drainage and gas production and purifying water and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114177733B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771417A (en) * | 2016-04-25 | 2016-07-20 | 大连凯信石化科技有限公司 | Method for filtering and recovering solid particles in mother solution at PTA oxidation stage and filter using method |
| CN206033340U (en) * | 2016-08-16 | 2017-03-22 | 攀枝花市九鼎智远知识产权运营有限公司 | Coal slime water treatment system |
| CN206652698U (en) * | 2017-02-17 | 2017-11-21 | 山西省交通科学研究院 | Can be weighed the sand grains screening plant of sand |
| CN107551630A (en) * | 2017-09-26 | 2018-01-09 | 上海安赐环保科技股份有限公司 | A kind of self-cleaning filter device and its technique applied to the processing of coking desulfurization liquid |
| CN208852505U (en) * | 2018-08-30 | 2019-05-14 | 吉林市海阔工贸有限公司 | A kind of CTP plate developing machine rushes version water filtering device |
| CN112624538A (en) * | 2020-12-02 | 2021-04-09 | 天津水泥工业设计研究院有限公司 | Green and efficient red mud carbon dioxide carbonization dealkalization system and process |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148888B (en) * | 2013-02-21 | 2015-11-25 | 西南石油大学 | A kind of coalbed methane reservoir bilayer closes adopts High Temperature High Pressure mining dynamic estimation system |
| EP3255127A1 (en) * | 2016-06-09 | 2017-12-13 | Linde Aktiengesellschaft | Method of processing a coal seam gas |
| CN207048743U (en) * | 2017-08-08 | 2018-02-27 | 山西煤层气有限责任公司 | A kind of intelligent coal bed gas collection device |
| CN208320401U (en) * | 2018-01-13 | 2019-01-04 | 柳建华 | A kind of moisture separator applied to coal-bed gas exploitation |
| CN208038159U (en) * | 2018-01-19 | 2018-11-02 | 袁广 | A kind of coal bed gas wastewater treatment equipment |
| CN108776041B (en) * | 2018-06-14 | 2020-04-03 | 安徽理工大学 | Gas-water-coal fine separation, collection and water purification cyclic treatment test method |
| CN109179715A (en) * | 2018-10-09 | 2019-01-11 | 飞潮（无锡）过滤技术有限公司 | The circulating filtration recyclable device and technique of titanium dioxide granule in wastewater from TiO2 factory |
| CN109513363A (en) * | 2018-11-07 | 2019-03-26 | 湖南城头山红薯食品科技有限公司 | A kind of recovery system for peameal production |
| US20230143266A1 (en) * | 2020-04-03 | 2023-05-11 | Biofrigas Sweden Ab (Publ) | Method and system for the production of liquid biogas |
| CN111642730B (en) * | 2020-06-18 | 2023-06-06 | 安徽省农业科学院农产品加工研究所 | Method, product and equipment for recycling and eluting soy sauce residues |
| CN111830231B (en) * | 2020-07-21 | 2023-07-21 | 安徽理工大学 | Efficient separation, recovery treatment and cyclic utilization test method for coal-water gas mixture |
| CN112587984A (en) * | 2020-11-24 | 2021-04-02 | 湖南祥柏生态环保科技有限公司 | Circulating filtering type oil residue separating device |
-
2021
- 2021-12-01 CN CN202111453121.8A patent/CN114177733B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771417A (en) * | 2016-04-25 | 2016-07-20 | 大连凯信石化科技有限公司 | Method for filtering and recovering solid particles in mother solution at PTA oxidation stage and filter using method |
| CN206033340U (en) * | 2016-08-16 | 2017-03-22 | 攀枝花市九鼎智远知识产权运营有限公司 | Coal slime water treatment system |
| CN206652698U (en) * | 2017-02-17 | 2017-11-21 | 山西省交通科学研究院 | Can be weighed the sand grains screening plant of sand |
| CN107551630A (en) * | 2017-09-26 | 2018-01-09 | 上海安赐环保科技股份有限公司 | A kind of self-cleaning filter device and its technique applied to the processing of coking desulfurization liquid |
| CN208852505U (en) * | 2018-08-30 | 2019-05-14 | 吉林市海阔工贸有限公司 | A kind of CTP plate developing machine rushes version water filtering device |
| CN112624538A (en) * | 2020-12-02 | 2021-04-09 | 天津水泥工业设计研究院有限公司 | Green and efficient red mud carbon dioxide carbonization dealkalization system and process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114177733A (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207056126U (en) | A kind of automobile waste oil filtering recovering device | |
| CN110700800A (en) | Shale gas cluster well gas collection platform process flow and method | |
| CN201942752U (en) | Recovered acid solution filtering device for pickling pipeline | |
| CN114177733B (en) | System for separating coal and water for coal bed gas drainage and gas production and purifying water and control method | |
| CN108776041B (en) | Gas-water-coal fine separation, collection and water purification cyclic treatment test method | |
| CN201164748Y (en) | Filter pot | |
| CN107840481A (en) | A kind of recovery processing process for fracturing return liquid | |
| CN102623772A (en) | Comprehensive re-treatment device for waste lead storage battery | |
| CN210163134U (en) | Ferric phosphate washing device | |
| CN205154131U (en) | Liquid recovery system is taken off in degritting of modularization natural gas | |
| CN106630226A (en) | Plumbic acid storage battery waste acid recovering system and residual liquid treatment method | |
| CN202454693U (en) | Integrated retreating equipment for waste lead storage batteries | |
| CN207056068U (en) | A kind of methanol filtration system | |
| CN209110709U (en) | A kind of automatically cleaning central water outlet system | |
| CN115253560A (en) | Device and method for cleaning sundries in gas drainage pipeline | |
| CN205473161U (en) | It adopts oily waste water treatment device to integrate intelligent oil field | |
| CN104511185B (en) | A kind of liquid phase VCM dewatering system and dewatering process thereof | |
| CN204848502U (en) | Pipeline formula oil deareator | |
| CN207774007U (en) | A kind of tar tank can be automatically controled tar product quality | |
| CN204005180U (en) | A kind of thin oil lubrication tank automatically cleaning self-purifying device | |
| CN113426253A (en) | Demister washing water cascade utilization system | |
| CN105417832A (en) | Integrated intelligent oil production wastewater treatment device and method for oil fields | |
| CN216273985U (en) | Shale gas single well trial production integrated processing device | |
| CN212166946U (en) | Intelligent dust removal equipment in chemical production | |
| CN207203770U (en) | A kind of broken apart recovery dust arrester of lead accumulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |