CN112142227A - Integrated treatment device for coal bed gas wastewater - Google Patents
Integrated treatment device for coal bed gas wastewater Download PDFInfo
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- CN112142227A CN112142227A CN202011031429.9A CN202011031429A CN112142227A CN 112142227 A CN112142227 A CN 112142227A CN 202011031429 A CN202011031429 A CN 202011031429A CN 112142227 A CN112142227 A CN 112142227A
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- 239000003245 coal Substances 0.000 title claims abstract description 92
- 239000002351 wastewater Substances 0.000 title claims abstract description 85
- 238000003756 stirring Methods 0.000 claims abstract description 181
- 239000007788 liquid Substances 0.000 claims abstract description 157
- 238000000926 separation method Methods 0.000 claims abstract description 96
- 238000005189 flocculation Methods 0.000 claims abstract description 64
- 230000016615 flocculation Effects 0.000 claims abstract description 64
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000001556 precipitation Methods 0.000 claims abstract description 57
- 238000012216 screening Methods 0.000 claims abstract description 39
- 238000001914 filtration Methods 0.000 claims abstract description 26
- 239000012528 membrane Substances 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 65
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 29
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 29
- 241001330002 Bambuseae Species 0.000 claims description 29
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 29
- 239000011425 bamboo Substances 0.000 claims description 29
- 238000005507 spraying Methods 0.000 claims description 23
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000002912 waste gas Substances 0.000 claims description 5
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000008394 flocculating agent Substances 0.000 claims description 3
- 230000003311 flocculating effect Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims 1
- 239000013618 particulate matter Substances 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 description 9
- 230000010354 integration Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/26—Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of microbubbles or nanobubbles
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an integrated treatment device for coal bed gas wastewater, which is provided with a stirring and gas-liquid separation bin, so that coal bed gas wastewater in the stirring and gas-liquid separation bin is stirred by a stirring mechanism, then is subjected to solid-liquid separation by a solid-liquid separation screening mechanism, and then flows into a flocculation precipitation bin for flocculation precipitation, and the bottom in the flocculation precipitation bin is provided with a filtering membrane group, so that gas dissolved in the coal bed gas wastewater can be conveniently discharged and collected by the coal bed gas wastewater, the subsequent treatment safety is ensured, and the pollution to the environment is reduced. So as to prevent blockage of the cylindrical screen and assist in crushing large particulate matter in the coal bed methane wastewater.
Description
Technical Field
The invention particularly relates to a device and a method for integrally treating coal bed methane wastewater, and belongs to the technical field of coal bed methane wastewater treatment.
Background
For the exploitation of coal bed gas, a large amount of waste water is generated during exploitation, the coal bed gas waste water not only contains a large amount of harmful substances, moreover, the waste water contains more or less coal bed gas dissolved in the waste water and the particles during mining, if the coal bed gas is intensively released in the wastewater, particularly when the coal bed gas is treated in a subsequent wastewater treatment room, accidents are easy to occur, and in a closed environment, the common coal bed gas treatment equipment generally flocculates and filters harmful substances in the wastewater, particularly heavy metals, organic substances and other substances only by utilizing flocculation, adsorption and other modes, and the simple mode has low flocculation efficiency, moreover, harmful gases in the wastewater are difficult to remove, and the treatment requirement of the coal bed methane wastewater is difficult to meet.
Disclosure of Invention
The invention aims to provide a coal bed methane wastewater integrated treatment device and a coal bed methane wastewater integrated treatment method, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the integrated treatment device for the coal bed methane wastewater comprises a support, a stirring and gas-liquid separation bin, a stirring mechanism, a solid-liquid separation screening mechanism and a flocculation precipitation bin, and is characterized in that the stirring and gas-liquid separation bin is arranged at the top of the support, the stirring mechanism is arranged in the stirring and gas-liquid separation bin, and can stir the coal bed methane wastewater in the stirring and gas-liquid separation bin and promote the emission and discharge of gas dissolved and mixed in the coal bed methane wastewater; the stirring and gas-liquid separation bin is internally provided with the solid-liquid separation screening mechanism, one side of the stirring and gas-liquid separation bin is provided with the flocculation precipitation bin, coal bed gas wastewater in the stirring and gas-liquid separation bin is stirred by the stirring mechanism, then is subjected to solid-liquid separation by the solid-liquid separation screening mechanism, then flows separated liquid into the flocculation precipitation bin for flocculation precipitation, and the bottom in the flocculation precipitation bin is provided with a filtering membrane group; wherein,
stirring and gas-liquid separation storehouse, rabbling mechanism's top is provided with sealing connection's exhaust and collects the cover, the cover is collected in the exhaust can be collected the gas of coal bed gas waste water exhaust dissolving in coal bed gas waste water.
Further, preferably, the stirring mechanism comprises a stirring auxiliary belt, an extending inclined bin seat, a stirring belt motor, a stirring circulating pump, a circulating pump mounting seat and a spraying stirring head assembly, wherein one end of the stirring and gas-liquid separation bin is provided with the extending inclined bin seat in an upward inclined manner, the stirring auxiliary belt extending in an upward inclined manner is arranged in the extending inclined bin seat, stirring pins in an interval array are arranged on the surface of the stirring auxiliary belt, the auxiliary belt is driven by the stirring belt motor fixed above the extending inclined bin seat, the circulating pump mounting seat fixed on a bracket is arranged below the extending inclined bin seat, the stirring circulating pump is fixedly arranged in the circulating pump mounting seat, the spraying stirring head assembly is arranged in the stirring and gas-liquid separation bin and is communicated with the stirring circulating pump, so use the stirring circulating pump carries out supplementary stirring to coal bed gas waste water, wherein, the stirring styletable is the spring steel wire structure, so that use the stirring styletable stirs the bold particulate matter among the coal bed gas waste water, is convenient for harmful substance and hides the exhaust emission wherein.
Further, as a preferable mode, the injection stirring head assembly comprises a horizontal injection head group and a vertical injection head group, wherein each group of the horizontal injection head group is arranged at intervals along the length extending direction of the stirring and gas-liquid separation bin, each group of the vertical injection head group is also arranged at intervals along the length extending direction of the stirring and gas-liquid separation bin, each horizontal injection head of each horizontal injection head group and each vertical injection head of each vertical injection head group are arranged at intervals along the width extending direction of the stirring and gas-liquid separation bin, the injection direction of the horizontal injection head is the horizontal direction, and the injection direction of the vertical injection head is the vertically upward direction.
Further, preferably, the stirring belt motor and the driving pulley of the stirring auxiliary belt are in transmission connection by a transmission chain.
Further, as preferred, solid-liquid separation screening mechanism includes a screening net section of thick bamboo and a net section of thick bamboo drive rotation motor, wherein, a plurality of a screening net section of thick bamboo along mix with the length extending direction spaced arrangement in gas-liquid separation storehouse, and each a screening net section of thick bamboo is the cylinder structure, and every a screening net section of thick bamboo along mix with the width direction extension in gas-liquid separation storehouse, intensive screening mesh that is provided with on the stack shell of a screening net section of thick bamboo, rotatable support of a screening net section of thick bamboo is in mix in with the gas-liquid separation storehouse, just the rotation of a screening net section of thick bamboo is by fixing in mix with the gas-liquid separation storehouse outside a net section of thick bamboo drive rotation motor drive.
Further, as preferred, the stirring with gas-liquid separation storehouse with one side that flocculation and precipitation storehouse interconnect is provided with out the liquid hole, go out the liquid hole with the center of the axial tip of a screen cloth section of thick bamboo is relative and the intercommunication sets up.
Further, as preferred, be located in the flocculation and precipitation storehouse the below in play liquid hole is provided with secondary filter screen, secondary filter screen can be right go out the liquid that the liquid hole flows and carry out secondary filtration.
Further, as an optimization, the bottom of one side of the stirring and gas-liquid separation bin, which is far away from the flocculation precipitation bin, is provided with a plurality of drain outlets arranged at intervals, one side of the stirring and gas-liquid separation bin, which is far away from the flocculation precipitation bin, is also provided with a circulating liquid inlet pipe, one side of the stirring and gas-liquid separation bin, which is close to the flocculation precipitation bin, is provided with a circulating liquid outlet pipe, liquid outlet ends of the circulating liquid outlet pipes are both communicated with the injection stirring head assembly, the circulating liquid outlet pipe is connected to a liquid outlet end of the circulating pump, the circulating liquid inlet pipe is connected to a liquid inlet end of the circulating pump, and one side of the flocculation precipitation bin is provided with; the bottom in flocculation and precipitation storehouse is connected the retaining and is detected the pond, the retaining detects the pond and is used for detecting the water liquid after filtering the filter membrane group to discharge filterable water after detecting qualified.
Further, preferably, the screen cylinder comprises a first end connecting ring, a second end connecting ring, radial connecting rods, a cylindrical screen and a central driving rotating column, wherein two axial ends of the cylindrical screen are respectively fixed on the first end connecting ring and the second end connecting ring, a plurality of radial connecting rods extending in the radial direction are arranged in an array on the inner circumferences of the first end connecting ring and the second end connecting ring, the inner ends of the radial connecting rods are fixed on the central driving rotating column, the end of the central driving rotating column is connected with an output shaft of the screen cylinder driving rotating motor, a plurality of axial shoulder plates extending in parallel with the axial direction of the cylindrical screen are further arranged on the cylindrical screen, a plurality of stirring strips arranged at intervals and extending towards the radial outer side of the cylindrical screen are arranged on the axial shoulder plates, and the stirring strips can stir the coal bed gas wastewater, so as to prevent blockage of the cylindrical screen and assist in crushing large particulate matter in the coal bed methane wastewater.
Furthermore, the invention also provides a method for treating the coal bed gas wastewater by using the coal bed gas wastewater integrated treatment device, which is characterized by comprising the following steps: which comprises the following steps:
(1) connecting coal bed gas wastewater discharged in coal bed gas exploitation to the end part of an extending inclined bin seat of a stirring mechanism through a drain pipe, starting a stirring belt motor and a stirring circulating pump of the stirring mechanism, driving a stirring auxiliary belt to run by using the stirring belt motor, driving, stirring and crushing the coal bed gas wastewater, performing high-pressure circulation on the coal bed gas in a stirring and gas-liquid separation bin by using the stirring circulating pump, continuously spraying and stirring by using a spraying stirring head assembly, crushing large particles and facilitating discharge of harmful substances and waste gas hidden in the large particles;
(2) after stirring for a certain time, starting a screen cylinder to drive a rotating motor, driving a screening screen cylinder to rotate through the screen cylinder driving rotating motor, promoting solid-liquid separation in the coal bed gas wastewater by the rotation of the screen cylinder, and filtering and screening liquid to flow into a flocculation precipitation bin;
(3) adding a flocculating agent into the flocculation precipitation bin, and flocculating for a certain time;
(4) the liquid after the flocculation in the flocculation and precipitation storehouse is filtered to filtration membrane group in the flocculation and precipitation storehouse, and filtered water liquid gets into the retaining and detects the pond, the detection device in the retaining detects the water liquid after filtering membrane group and filters, discharges filterable water after detecting qualified.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a coal bed gas wastewater integrated treatment device, which is provided with a stirring and gas-liquid separation bin, so that coal bed gas wastewater in the stirring and gas-liquid separation bin is stirred by a stirring mechanism, then is subjected to solid-liquid separation by a solid-liquid separation screening mechanism, and then flows separated liquid into a flocculation precipitation bin for flocculation precipitation, and the bottom in the flocculation precipitation bin is provided with a filter membrane group, so that the coal bed gas wastewater can conveniently discharge and collect gas dissolved in the coal bed gas wastewater, the safety of subsequent treatment is ensured, and the pollution to the environment is reduced. The invention can realize the multi-layer filtration of primary filtration, secondary filtration and filtration membrane groups, has reliable flocculation and can effectively ensure the integration degree and the treatment thoroughness of the treatment of the coal bed gas wastewater.
Drawings
FIG. 1 is an overall schematic front view of a coal bed methane wastewater integrated treatment device;
FIG. 2 is an overall side view structural diagram of a coal bed methane wastewater integrated treatment device.
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic top view of the front of the three dimensional view of the present invention;
FIG. 5 is a schematic back side plan view of a three dimensional view of the present invention;
FIG. 6 is a schematic view of a screen cylinder according to the present invention;
FIG. 7 is a schematic side view of a screen cylinder according to the present invention;
Detailed Description
Referring to fig. 1 to 7, in the embodiment of the invention, a device and a method for integrally treating coal bed methane wastewater comprise a support 1, a stirring and gas-liquid separation bin 2, a stirring mechanism, a solid-liquid separation screening mechanism and a flocculation precipitation bin 12, and are characterized in that the stirring and gas-liquid separation bin 2 is arranged at the top of the support, the stirring mechanism is arranged in the stirring and gas-liquid separation bin 2, and the stirring mechanism can stir the coal bed methane wastewater in the stirring and gas-liquid separation bin 2 and promote the emission and discharge of gas dissolved and mixed in the coal bed methane wastewater; the stirring and gas-liquid separation bin is internally provided with the solid-liquid separation screening mechanism, one side of the stirring and gas-liquid separation bin 2 is provided with the flocculation precipitation bin 12, coal bed methane wastewater in the stirring and gas-liquid separation bin 2 is stirred by the stirring mechanism, then is subjected to solid-liquid separation by the solid-liquid separation screening mechanism, then flows separated liquid into the flocculation precipitation bin for flocculation precipitation, and the bottom in the flocculation precipitation bin is provided with a filtering membrane group 14; wherein,
stirring and gas-liquid separation storehouse 2, rabbling mechanism's top is provided with sealing connection's exhaust and collects the cover, the cover is collected in the exhaust can be collected the gas of coal bed gas waste water exhaust dissolving in coal bed gas waste water.
In this embodiment, the stirring mechanism includes a stirring auxiliary belt 8, an extending inclined bin base 7, a stirring belt motor 6, a stirring circulating pump, a circulating pump mounting base 9, and a spraying stirring head assembly, wherein one end of the stirring and gas-liquid separation bin 2 is provided with the extending inclined bin base in an upward inclined manner, the stirring auxiliary belt extending in an upward inclined manner is arranged in the extending inclined bin base, the surface of the stirring auxiliary belt is provided with stirring pins 27 in a spaced array, the auxiliary belt is driven by the stirring belt motor 6 fixed above the extending inclined bin base, the circulating pump mounting base 9 fixed on the bracket is arranged below the extending inclined bin base 7, the stirring circulating pump is fixedly arranged in the circulating pump mounting base 9, and the spraying stirring head assembly is arranged in the stirring and gas-liquid separation bin 2, the jet stirring head assembly is communicated with the stirring circulating pump so as to be used for assisting in stirring the coal bed gas wastewater by the stirring circulating pump, wherein the stirring plunger is of a spring steel wire structure so as to be used for stirring large particles in the coal bed gas wastewater, so that harmful substances and waste gas hidden in the coal bed gas wastewater are discharged conveniently.
The spraying stirring head assembly comprises a horizontal spraying head group 5 and a vertical spraying head group 4, wherein each group of horizontal spraying head group is arranged along the interval of the length extending direction of the stirring and gas-liquid separation bin 2, each group of vertical spraying head group is also arranged along the interval of the length extending direction of the stirring and gas-liquid separation bin 2, each group of horizontal spraying head group 5 and each group of vertical spraying head group 4 are arranged along the interval of the width extending direction of the stirring and gas-liquid separation bin 2, wherein the spraying direction of the horizontal spraying head is the horizontal direction, and the spraying direction of the vertical spraying head is the vertical upward direction.
The stirring belt motor is in transmission connection with a driving belt wheel of the stirring auxiliary belt 8 by a transmission chain 16.
Solid-liquid separation screening mechanism includes a screen cloth section of thick bamboo 3 and a net section of thick bamboo drive rotation motor, wherein, a plurality of screen cloth section of thick bamboo 3 along mix with the length extending direction spaced arrangement of gas-liquid separation storehouse 2, and each screen cloth section of thick bamboo 3 is the cylinder structure, and every screen cloth section of thick bamboo 3 along mix with the width direction extension of gas-liquid separation storehouse 2, intensive screening mesh that is provided with on the stack shell of screen cloth section of thick bamboo 3, the rotatable support of screen cloth section of thick bamboo 3 is in mix in with the gas-liquid separation storehouse 2, just the rotation of screen cloth section of thick bamboo 3 is by fixing in mix with the 2 outsides of gas-liquid separation storehouse the net section of thick bamboo drive rotation motor drive.
One side of stirring and gas-liquid separation storehouse 2 with flocculation and precipitation storehouse interconnect is provided with out the liquid hole 15, go out the liquid hole with the center of the axial tip of a screen cloth section of thick bamboo 3 is relative and the intercommunication sets up.
Be located in the flocculation and precipitation storehouse the below in play liquid hole is provided with secondary filter screen 11, secondary filter screen can be right go out the liquid that the liquid hole flows and carry out secondary filtration.
The bottom of one side, far away from the flocculation precipitation bin, of the stirring and gas-liquid separation bin 2 is provided with a plurality of drain outlets 26 arranged at intervals, one side, far away from the flocculation precipitation bin, of the stirring and gas-liquid separation bin 2 is also provided with a circulating liquid inlet pipe 25, one side, near the flocculation precipitation bin, of the stirring and gas-liquid separation bin 2 is provided with a circulating liquid outlet pipe 10, liquid outlet ends of the circulating liquid outlet pipes 10 are communicated with the injection stirring head assembly, the circulating liquid outlet pipe 10 is connected to the liquid outlet end of the circulating pump, the circulating liquid inlet pipe is connected to the liquid inlet end of the circulating pump, and one side of the flocculation precipitation bin is provided with a liquid discharge joint 17; the bottom in flocculation and precipitation storehouse is connected the retaining and is detected the pond, the retaining detects the pond and is used for detecting the water liquid after filtering the filter membrane group to discharge filterable water after detecting qualified.
The screen cylinder 3 comprises a first end connecting ring 18, a second end connecting ring 20, a radial connecting rod 21, a cylindrical screen 23 and a central driving rotary column 22, wherein the two axial ends of the cylindrical screen 23 are respectively fixed on the first end connecting ring 18 and the second end connecting ring 20, the inner circumference array of the first end connecting ring 18 and the second end connecting ring 20 is provided with a plurality of radial connecting rods extending radially, the inner ends of the radial connecting rods are fixed on the central driving rotary column, the end part of the central driving rotary column is connected with the output shaft of the screen cylinder driving rotary motor, the cylindrical screen 23 is further provided with a plurality of axial shoulder plates extending parallel to the axial direction thereof, the axial shoulder plates are provided with a plurality of stirring strips 19 arranged at intervals and extending towards the radial outer side of the cylindrical screen, and the stirring strips can stir the coal bed methane wastewater, so as to prevent blockage of the cylindrical screen and assist in crushing large particulate matter in the coal bed methane wastewater.
In addition, the invention also provides a method for treating the coal bed gas wastewater by using the coal bed gas wastewater integrated treatment device, which is characterized by comprising the following steps: which comprises the following steps:
(1) connecting coal bed gas wastewater discharged in coal bed gas exploitation to the end part of an extending inclined bin seat 7 of a stirring mechanism through a drain pipe, starting a stirring belt motor 6 and a stirring circulating pump of the stirring mechanism, driving a stirring auxiliary belt 8 to run by using the stirring belt motor 6, driving, stirring and crushing the coal bed gas wastewater, performing high-pressure circulation on the coal bed gas in a stirring and gas-liquid separation bin 2 by using the stirring circulating pump, continuously spraying and stirring by using a spraying stirring head assembly, crushing large particles, and facilitating discharge of harmful substances and waste gas stored in the large particles;
(2) after stirring for a certain time, starting a screen cylinder to drive a rotating motor, driving a screening screen cylinder to rotate through the screen cylinder driving rotating motor, promoting solid-liquid separation in the coal bed gas wastewater by the rotation of the screen cylinder, and filtering and screening liquid to flow into a flocculation precipitation bin;
(3) adding a flocculating agent into the flocculation precipitation bin, and flocculating for a certain time;
(4) the liquid after the flocculation in the flocculation and precipitation storehouse is filtered to filtration membrane group in the flocculation and precipitation storehouse, and filtered water liquid gets into the retaining and detects the pond, the detection device in the retaining detects the water liquid after filtering membrane group and filters, discharges filterable water after detecting qualified.
The invention provides a coal bed gas wastewater integrated treatment device, which is provided with a stirring and gas-liquid separation bin, so that coal bed gas wastewater in the stirring and gas-liquid separation bin is stirred by a stirring mechanism, then is subjected to solid-liquid separation by a solid-liquid separation screening mechanism, and then flows separated liquid into a flocculation precipitation bin for flocculation precipitation, and the bottom in the flocculation precipitation bin is provided with a filter membrane group, so that the coal bed gas wastewater can conveniently discharge and collect gas dissolved in the coal bed gas wastewater, the safety of subsequent treatment is ensured, and the pollution to the environment is reduced. The invention can realize the multi-layer filtration of primary filtration, secondary filtration and filtration membrane groups, has reliable flocculation and can effectively ensure the integration degree and the treatment thoroughness of the treatment of the coal bed gas wastewater
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. The integrated treatment device for the coal bed methane wastewater comprises a support (1), a stirring and gas-liquid separation bin (2), a stirring mechanism, a solid-liquid separation screening mechanism and a flocculation precipitation bin (12), and is characterized in that the stirring and gas-liquid separation bin (2) is arranged at the top of the support, the stirring mechanism is arranged in the stirring and gas-liquid separation bin (2), and can stir the coal bed methane wastewater in the stirring and gas-liquid separation bin (2) and promote the diffusion and discharge of gas dissolved and mixed in the coal bed methane wastewater; the stirring and gas-liquid separation bin is internally provided with the solid-liquid separation screening mechanism, one side of the stirring and gas-liquid separation bin (2) is provided with the flocculation precipitation bin (12), coal bed gas wastewater in the stirring and gas-liquid separation bin (2) is stirred by the stirring mechanism, then is subjected to solid-liquid separation by the solid-liquid separation screening mechanism, then flows separated liquid into the flocculation precipitation bin for flocculation precipitation, and the bottom in the flocculation precipitation bin is provided with a filter membrane group (14); wherein,
the top of stirring and gas-liquid separation storehouse (2), rabbling mechanism is provided with sealing connection's exhaust and collects the cover, the cover is collected in the exhaust can be collected the gas of coal bed gas waste water exhaust dissolving in coal bed gas waste water.
2. The integrated treatment device for coal bed methane wastewater as claimed in claim 1, wherein: the stirring mechanism comprises a stirring auxiliary belt (8), an extending inclined bin seat (7), a stirring belt motor (6), a stirring circulating pump, a circulating pump mounting seat (9) and a spraying stirring head assembly, wherein one end of the stirring and gas-liquid separation bin (2) extends upwards in an inclined mode, the extending inclined bin seat is internally provided with the stirring auxiliary belt extending upwards in an inclined mode, the surface of the stirring auxiliary belt is provided with stirring column needles (27) in an interval array, the auxiliary belt is driven by the stirring belt motor (6) fixed above the extending inclined bin seat, the circulating pump mounting seat (9) fixed on a support is arranged below the extending inclined bin seat (7), the stirring circulating pump is fixedly arranged in the circulating pump mounting seat (9), and the spraying stirring head assembly is arranged in the stirring and gas-liquid separation bin (2), the jet stirring head assembly is communicated with the stirring circulating pump so as to be used for assisting in stirring the coal bed gas wastewater by the stirring circulating pump, wherein the stirring plunger is of a spring steel wire structure so as to be used for stirring large particles in the coal bed gas wastewater, so that harmful substances and waste gas hidden in the coal bed gas wastewater are discharged conveniently.
3. The integrated treatment device for coal bed methane wastewater as claimed in claim 2, wherein: the jet stirring head assembly comprises a horizontal jet head group (5) and a vertical jet head group (4), wherein each group of the horizontal jet head group is arranged at intervals along the length extending direction of the stirring and gas-liquid separation bin (2), each group of the vertical jet head group is also arranged at intervals along the length extending direction of the stirring and gas-liquid separation bin (2), each group of the horizontal jet head group (5) is arranged at each horizontal jet head and each group of the vertical jet head group (4) is arranged at intervals along the width extending direction of the stirring and gas-liquid separation bin (2), wherein the jet direction of the horizontal jet head is the horizontal direction, and the jet direction of the vertical jet head is the vertical upward direction.
4. The integrated treatment device for coal bed methane wastewater as claimed in claim 2, wherein: the stirring belt motor is in transmission connection with a driving belt wheel of the stirring auxiliary belt (8) by a transmission chain (16).
5. The integrated treatment device for coal bed methane wastewater as claimed in claim 1, wherein: solid-liquid separation screening mechanism includes a screening net section of thick bamboo (3) and a net section of thick bamboo drive rotation motor, wherein, a plurality of a screening net section of thick bamboo (3) along mix the length extending direction spaced arrangement with gas-liquid separation storehouse (2), and each a screening net section of thick bamboo (3) is the cylinder structure, and every a screening net section of thick bamboo (3) along mix and extend with the width direction of gas-liquid separation storehouse (2), intensive screening mesh that is provided with on the stack shell of a screening net section of thick bamboo (3), rotatable support of a screening net section of thick bamboo (3) is in mix with gas-liquid separation storehouse (2), just the rotation of a screening net section of thick bamboo (3) is by fixing in mix with the gas-liquid separation storehouse (2) the net section of thick bamboo drive rotation motor drive.
6. The integrated treatment device for coal bed methane wastewater as claimed in claim 5, wherein: one side of stirring and gas-liquid separation storehouse (2) with flocculation and precipitation storehouse interconnect is provided with out liquid hole (15), go out the liquid hole with the center of the axial tip of screen cylinder (3) is relative and the intercommunication sets up.
7. The integrated treatment device for coal bed methane wastewater as claimed in claim 6, wherein: be located in the flocculation and precipitation storehouse the below in play liquid hole is provided with secondary filter screen (11), secondary filter screen can be right go out the liquid that the liquid hole flows and carry out secondary filtration.
8. The integrated treatment device for coal bed methane wastewater as claimed in claim 2, wherein: the bottom of one side, far away from the flocculation precipitation bin, of the stirring and gas-liquid separation bin (2) is provided with a plurality of drain outlets (26) arranged at intervals, one side, far away from the flocculation precipitation bin, of the stirring and gas-liquid separation bin (2) is also provided with a circulating liquid inlet pipe (25), one side, near the flocculation precipitation bin, of the stirring and gas-liquid separation bin (2) is provided with a circulating liquid outlet pipe (10), the liquid outlet end of the circulating liquid outlet pipe (10) is communicated with the injection stirring head assembly, the circulating liquid outlet pipe (10) is connected to the liquid outlet end of the circulating pump, the circulating liquid inlet pipe is connected to the liquid inlet end of the circulating pump, and one side of the flocculation precipitation bin is provided with a liquid discharge joint (17); the bottom in flocculation and precipitation storehouse is connected the retaining and is detected the pond, the retaining detects the pond and is used for detecting the water liquid after filtering the filter membrane group to discharge filterable water after detecting qualified.
9. The integrated treatment device for coal bed methane wastewater as claimed in claim 5, wherein: the screening net drum (3) comprises a first end connecting ring (18), a second end connecting ring (20), radial connecting rods (21), a cylindrical screen (23) and a central driving rotating column (22), wherein the two axial ends of the cylindrical screen (23) are respectively fixed on the first end connecting ring (18) and the second end connecting ring (20), a plurality of radial connecting rods extending in the radial direction are arranged in the first end connecting ring (18) and the second end connecting ring (20) in an array mode, the inner ends of the radial connecting rods are fixed on the central driving rotating column, the end part of the central driving rotating column is connected with an output shaft of a net drum driving rotating motor, a plurality of axial shoulder plates extending in parallel with the axial direction of the cylindrical screen (23) are further arranged on the cylindrical screen, a plurality of stirring strips (19) arranged at intervals and extending towards the radial outer side of the cylindrical screen are arranged on the axial shoulder plates, the stirring strip can stir the coal bed gas waste water so as to prevent the blockage of the cylindrical screen and assist in crushing large granular substances in the coal bed gas waste water.
10. A method for treating coal bed methane wastewater by using the coal bed methane wastewater integrated treatment device of any one of claims 1-9, wherein the method comprises the following steps: which comprises the following steps:
(1) connecting coal bed gas wastewater discharged in coal bed gas exploitation to the end part of an extending inclined bin seat (7) of a stirring mechanism through a drain pipe, starting a stirring belt motor (6) and a stirring circulating pump of the stirring mechanism, driving a stirring auxiliary belt (8) to run by using the stirring belt motor (6), driving, stirring and crushing the coal bed gas wastewater, performing high-pressure circulation on the coal bed gas in a stirring and gas-liquid separation bin (2) by using the stirring circulating pump, continuously spraying and stirring by using a spraying stirring head assembly, and crushing large particles so as to discharge harmful substances and waste gas hidden in the coal bed gas;
(2) after stirring for a certain time, starting a screen cylinder to drive a rotating motor, driving a screening screen cylinder to rotate through the screen cylinder driving rotating motor, promoting solid-liquid separation in the coal bed gas wastewater by the rotation of the screen cylinder, and filtering and screening liquid to flow into a flocculation precipitation bin;
(3) adding a flocculating agent into the flocculation precipitation bin, and flocculating for a certain time;
(4) the liquid after the flocculation in the flocculation and precipitation storehouse is filtered to filtration membrane group in the flocculation and precipitation storehouse, and filtered water liquid gets into the retaining and detects the pond, the detection device in the retaining detects the water liquid after filtering membrane group and filters, discharges filterable water after detecting qualified.
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Application publication date: 20201229 |