CN115340241A - Mine water treatment device capable of being recycled - Google Patents
Mine water treatment device capable of being recycled Download PDFInfo
- Publication number
- CN115340241A CN115340241A CN202211036013.5A CN202211036013A CN115340241A CN 115340241 A CN115340241 A CN 115340241A CN 202211036013 A CN202211036013 A CN 202211036013A CN 115340241 A CN115340241 A CN 115340241A
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- water treatment
- mine water
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- mine
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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
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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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
- 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
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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
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention relates to the field of water treatment, in particular to a mine water treatment device capable of recycling. The method comprises the following steps: the regulating tank is internally provided with a grid, the regulating tank is connected with a ceramic membrane system, the ceramic membrane system is connected with an activated carbon filter, the activated carbon filter is connected with a clean water tank, and the clean water tank is simultaneously connected with a main roadway negative pressure induction automatic watering device, a geothermal power generation system and a ground water source heat pump system. The mine water treatment equipment is arranged underground, and the treated mine water can be used for underground dust removal, refrigeration, power generation, coal seam injection and the like, so that the mine water can be fully recycled. Meanwhile, geothermal power generation can provide electric energy for the mine water treatment process.
Description
Technical Field
The invention relates to the field of water treatment, in particular to a mine water treatment device capable of recycling.
Background
Coal mine water is industrial wastewater which is polluted and discharged to an environmental water body in the underground coal mining process.
The conventional mine water treatment and recycling process is that underground gushing water is converged to an underground central water sump through a roadway and then is lifted to a ground mine water treatment station by a drainage pump. The coal mine water is purified by a mine water treatment station, then is conveyed to a ground static pressure water pool through a water supply pump, and is supplied to the underground of a coal mine by static pressure to serve as water for fire fighting, dust prevention, equipment cooling, coal seam water injection and the like. The ground mine water treatment station has the following problems in actual operation: (1) The mine water is lifted to the ground from the underground and then is reused in the underground, a large amount of electric energy is consumed, and large unsafe factors exist due to complex and changeable underground environment and long water delivery line. (2) The mine water in part of regions is discharged to the ground, and high water resource cost is required. And (3) the occupied area is large, and the construction period is long. (4) The underground sump is high in cleaning labor intensity and is easy to cause industrial accidents. And (5) the treatment effect is greatly influenced by the climate environment.
The mine water treatment is arranged underground, and various structures are linearly arranged according to the underground actual environment, so that the ground occupation is saved, the power consumption of mine drainage is reduced, and the abrasion of drainage pipelines is reduced. The treated water is used for underground spraying dust fall, refrigeration, power generation, coal seam water injection and the like. Meanwhile, the electric energy generated by geothermal power generation can be supplied to the electric energy required by a mine water treatment system, so that the mine water can be fully recycled on site, and the method is economical and environment-friendly.
The invention content is as follows:
the invention provides a recycling mine water treatment device, which solves the problem that money is consumed when an existing mine water treatment system extracts water to the ground for treatment, realizes in-situ treatment of mine water, and simultaneously utilizes the treated mine water to perform underground dust removal, refrigeration, power generation, coal seam water injection and the like, so that the mine water is fully recycled.
In order to realize the purpose, the technical scheme of the invention is as follows: a mine water treatment device capable of recycling comprises: the regulating reservoir is internally provided with a grid and is connected with a ceramic membrane system, the ceramic membrane system is connected with an activated carbon filter, the activated carbon filter is connected with a clean water reservoir, and the clean water reservoir is simultaneously connected with a main roadway negative pressure induction automatic watering device, a geothermal power generation system and a ground water source heat pump system.
The first air blower is arranged in the adjusting tank.
According to the mine water treatment device capable of recycling, the ceramic membrane system is internally provided with the electric controller, the circulating pump, the membrane module and the backwashing pump, the circulating pump is connected with the membrane module, and the other end of the membrane module is connected with the backwashing pump.
In the mine water treatment device for recycling, the activated carbon filter comprises the second air blower.
In the mine water treatment device for recycling, the drainage pump is arranged in the clean water tank.
The automatic sprinkling device for the large roadway negative pressure induction comprises a controller, two infrared sensors, an electric ball valve and a sprayer, wherein the controller is provided with the two infrared sensors, and the infrared sensors are sequentially connected with the electric ball valve and the sprayer.
The geothermal power generation system comprises a control valve which is sequentially connected with a heat exchanger, a turbine and a power generator, the turbine is simultaneously sequentially connected with a condenser and a cooling tower and then connected with the heat exchanger, and the heat exchanger is connected with a second circulating pump.
The underground water source heat pump system comprises a third circulating pump connected with an electronic expansion valve in the heat exchange unit, and the electronic expansion valve is sequentially connected with an evaporator, a compressor and a condenser and then connected to the third circulating pump.
The automatic sprinkler is induced by the main lane negative pressure: the device is used for lowering dust in the mine by utilizing a mechanism that high-speed steam fog jet flow forms negative pressure around jet flow;
the geothermal power generation system: geothermal water firstly flows through a heat exchanger, geothermal energy is transferred to another working fluid with low boiling point to be boiled to generate steam, the steam enters a turbine to do work to drive a generator to generate electricity, then enters a condenser, and then completes the electricity generation cycle through the heat exchanger, and the geothermal water is injected into a regulating tank from the heat exchanger;
the underground water source heat pump system comprises: the indoor heat load is brought to a heat pump unit through circulating chilled water, a refrigerant medium in an evaporator absorbs heat and evaporates to absorb the indoor heat load brought by the chilled water, a refrigerant is liquefied and releases heat in a condenser through a compressor and other devices, the indoor heat load brought by the refrigerant is transmitted to underground water through a heat exchanger and flows back to a regulating reservoir, and the underground refrigeration effect is achieved;
the induced automatic watering device of big lane negative pressure includes: the infrared sensor senses an infrared signal emitted by a human body and converts the infrared signal into an electric signal; the controller receives the signals transmitted by the sensor, calculates the position of the water curtain and controls the corresponding electric valve; the electric ball valve controls the water curtain to be closed, the spraying process is suspended, and spraying and dust settling are resumed after personnel pass through the electric ball valve; the sprayer forms a negative pressure area within the range of 1m in diameter by taking the sprayer as the circle center, sucks air with dust into the fog column, catches and wets the dust in the fog column by small fog particles, enables the dust to fall, sets ideal timing spraying time according to the actual situation of a site, and removes dust by utilizing the mechanism that high-speed steam fog jet forms negative pressure around jet flow.
The geothermal power generation system includes: the control valve is used for controlling the water flow of the mine; the heat exchanger is used for generating saturated hot steam by heat exchange between low-temperature geothermal fluid and medium fluid with low boiling point; the turbine is used for generating saturated steam which enters the turbine to drive the generator to generate electricity; the generator is used for generating electric energy and supplying the electric energy required by mine water treatment and other underground electric energy; in the heat exchanger, low-temperature geothermal fluid exchanges heat with medium fluid with low boiling point to generate saturated hot steam, and the generated saturated steam enters a turbine to drive a generator to generate power; the condenser is used for cooling the steam after doing work in the condenser, condensing the steam into water and sending the water to the cooling tower; the cooling tower is used for returning to the heat exchanger for heat exchange again after being cooled and pressurized; and the circulating pump is used for making the mine water flow back to the regulating pool for recycling.
The ground water source heat pump system comprises: the circulating pump is used for returning the water to the deep part of the mine after being cooled by water for circulating heating; the electronic expansion valve is used for accurately controlling the flow of the refrigerant, so that the evaporation temperature is accurately controlled; the evaporator is used for absorbing heat and evaporating through a refrigerant medium and absorbing indoor heat load carried by the chilled water; the compressor is used for carrying out high-pressure superheating on the refrigerant; the condenser is used for liquefying the compressed refrigerant to release heat, thereby achieving the effect of underground refrigeration.
The invention has the following beneficial effects: the invention relates to a recyclable mine water treatment method, which is characterized in that mine water treatment equipment is arranged underground, and the treated mine water can be used for underground dust removal, refrigeration, power generation, coal seam injection and the like, so that the mine water can be fully recycled. Meanwhile, geothermal power generation can provide electric energy for the mine water treatment process. Therefore, compared with the conventional mine water treatment process, the process has the advantages that the ground occupation can be saved, the power consumption of mine drainage is reduced, the abrasion of a drainage pipeline is reduced, a series of underground functions are realized by using the treated mine water, the in-situ cyclic utilization of the mine water is really realized, and the process is economic and environment-friendly.
Drawings
Fig. 1 is a schematic structural diagram of a mine water treatment device for recycling.
In the figures, the meaning of the reference numerals is as follows:
1. the system comprises a grating, 2, a regulating reservoir, 21, a first blower, 3, a ceramic membrane system, 31, an electric controller, 32 a first circulating pump, 33 a membrane module, 34 a backwashing pump, 4, an activated carbon filter, 41 a second blower, 5, a clean water reservoir, 51, a drainage pump, 6, a roadway negative pressure induction automatic watering device, 61, a controller, 62, an infrared sensor, 63, an electric ball valve, 64, a spray head, 7, a geothermal power generation system, 71, a control valve, 72, a heat exchanger, 73, a turbine, 74, a generator, 75, a condenser, 76, a cooling tower, 77, a second circulating pump, 8, an underground water source heat pump system, 81, a third circulating pump, 82, an electronic expansion valve, 83, an evaporator, 84, a compressor, 85 and a condenser.
Detailed Description
For purposes of promoting a clear understanding of the objects and processing systems of the invention, reference will now be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which form a part hereof, and which are obvious, and in which it is not intended to limit the invention to the full extent specified. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on positional relationships shown in the drawings or positional relationships that are usually arranged when the system of the present invention is used, and are only used for convenience of description and simplification of description, but do not indicate that the device or the element to be referred to must have a specific position, and thus, should not be construed as limiting the present invention.
Moreover, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating relative importance.
In the description of the present invention, it is also to be noted that the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
A mine water treatment device capable of recycling comprises:
be equipped with grid 1 in the equalizing basin 2, equalizing basin 2 is connected with ceramic membrane system 3, and ceramic membrane system 3 is connected with activated carbon filter 4, and activated carbon filter 4 is connected with clean water basin 5, and clean water basin 5 is connected with big lane negative pressure induction automatic sprinkler 6, geothermal power generation system 7, groundwater source heat pump system 8 simultaneously.
A first blower 21 is provided in the adjusting tank 2.
An electric controller 31, a first circulating pump 32, a membrane module 33 and a backwashing pump 34 are arranged in the ceramic membrane system 3, the circulating pump 32 is connected with the membrane module 33, and the backwashing pump 34 is connected with the other end of the membrane module 33.
Carbon filter 4 includes a second blower 41.
A drain pump 51 is provided in the clean water tank 5.
The roadway negative pressure induction automatic watering device 6 comprises a controller 61, infrared sensors 62, an electric ball valve 63 and a spray head 64, wherein the controller 61 is provided with the two infrared sensors 62, and the infrared sensors are sequentially connected with the electric ball valve 63 and the spray head 64.
The geothermal power generation system 7 includes a control valve 71 connected to a heat exchanger 72, a turbine 73, and a generator 74 in this order, the turbine 73 is connected to a condenser 75 and a cooling tower 76 in this order, and the heat exchanger 72 is connected to a second circulation pump 77.
The underground water source heat pump system 8 comprises a circulating pump 81 connected with an electronic expansion valve 82 inside a heat exchanger unit, wherein the electronic expansion valve 82 is sequentially connected with an evaporator 83, a compressor 84 and a condenser 85 and then connected with a third circulating pump 81.
Wherein:
grid 1: the device is used for continuously and automatically intercepting and removing sundries in various shapes in mine water, so that the water quality and the water quantity are kept relatively stable, and a stable and optimized operating condition is provided for a subsequent treatment system.
And a regulating tank 2 jointly built with the grating: the water quality and the water quantity for adjusting the first sewage flow in are provided with the perforated aeration pipe and the first air blower 21 at the bottom of the adjusting tank 2, the first air blower 21 is used for providing an air source for intermittent aeration stirring of the adjusting tank 2, the sufficient mixing of high-suspended matter coal slime water can be realized, the second sewage is obtained, and the phenomenon of excessive deposition of the coal slime at the bottom of the adjusting tank does not occur during operation.
First circulating pump 32 connected to the outlet of regulating reservoir 2: the first circulating pump 32 provides power for mine water circulation, and water is continuously extracted to ensure that the mine water circulates in the system according to a set flow.
Ceramic membrane system 3 connected to the other end of first circulation pump 32: the ceramic membrane is used as a main process for mine water treatment, has low requirement on the quality of inlet water, and does not need to add PAM and PAC medicaments for coagulating sedimentation. The aperture of the membrane hole is 0.1 μm, high-concentration mine black water from the regulating reservoir 2 is directly sent into a membrane component 33 for separation under the action of negative pressure difference of a first circulating pump 32, the mine black water is subjected to cross flow filtration in a membrane pipe, and water molecules with the aperture smaller than 0.1 μm flow into a permeation end through the membrane hole to become filtered clear water; suspended matters, bacteria (mainly escherichia coli), macromolecular organic matters, oil stains, other pollutants and the like larger than the pore diameter cannot permeate through the membrane pores and are intercepted by the membrane to form concentrated solution, and the concentrated solution flows back into the regulating tank 2. The first blower 21 provides a gas source for the back flush of the membrane module 33.
Connected to the other end of the ceramic membrane system 3 is a backwash pump 34: the cleaning agent is used for physically cleaning the membrane module 33 at regular time, so that the more dirt on the inner hole wall of the ceramic membrane is prevented from being accumulated when the ceramic membrane works for a long time, and the service life of the ceramic membrane is effectively prolonged.
The activated carbon filter 4 connected with the backwashing pump 34 through a pipeline: the device is used for further adsorbing and removing organic pollutants such as COD (chemical oxygen demand), petroleum and the like in water to obtain first clear water, the first clear water is collected into a clear water tank 5, periodic backwashing is carried out on the activated carbon filter 4 at intervals, and the backwashing aims to remove the pollutants accumulated in the filter layer so as to recover the pollutant interception capability of the filter layer.
A clean water tank 5 connected to the activated carbon filter 4 through a pipe: the underground mine dust removal system is used for providing a water source for the first clean water stored and treated after reaching the standard, a drainage pump 51 is arranged in the clean water tank 5 and used for respectively draining the treated clean water in the clean water tank 5 to a main roadway negative pressure induction automatic water sprinkling device, a geothermal power generation system, an underground water source heat pump system and the like, and the multistage utilization of mine water is realized.
The clean water tank 5 is connected with the automatic watering device 6 induced by the negative pressure of the main roadway through a pipeline: this device adopts the spraying watering mode dust fall, utilizes the adsorptivity of water, makes the water droplet adsorb on the buggy dust granule that is floating, and the weight that increases the dust makes its descend, reaches the purpose that effectively reduces the dust concentration under the ore deposit. Big lane negative pressure induction automatic sprinkler 6 passes through infrared sensor 62, sense the pedestrian, the car stops spraying when passing through, two infrared sensor 62 of controller 61 configuration, through electric ball valve 63, the control water curtain is closed, pause the spraying process when sensing pedestrian or vehicle and passing through, personnel resume the spraying dust fall after passing through, utilize high-speed vapour fog efflux to form the mechanism dust removal of negative pressure around the efflux, each shower nozzle 64 can be in the scope of using the shower nozzle as centre of a circle diameter 1m, inhale the fog post with the air of dirt in, the dust that little fog grain hit in the fog post catches it moist, make it descend.
The clean water tank 5 is connected with the geothermal power generation system 7 through a pipeline: the first clean water enters the heat exchanger 72 through the control valve 71, the control valve 71 controls the flow rate of the mine water entering the heat exchanger 72, the mine hot water which is continuously output exchanges heat with a low boiling point medium (such as Freon), the low boiling point medium absorbs heat in the heat exchanger to generate saturated hot steam, the generated saturated steam enters the turbine 73 to do work to drive the generator 74 to generate electricity to supply electric energy required by mine water treatment and other underground mine electricity, the discharged steam after the turbine 73 does work enters the condenser 75 to be cooled, is condensed into water to be sent to the cooling tower 76, is cooled and pressurized, then returns to the heat exchanger to exchange heat again, and the clean water returns to the adjusting tank 2 through the second circulating pump 77 to continue circulating.
The clean water tank 5 is connected with an underground water source heat pump system 8 through a pipeline: the first clean water is connected with the evaporator 83 for heat exchange, and the refrigerant of the evaporator 83 throttled by the electronic expansion valve 82 absorbs heat and evaporates to absorb the indoor heat load carried by the mine water; the refrigerant is superheated under high pressure by the compressor 84, the compressed refrigerant is liquefied by the condenser 85 to release heat, and indoor heat load carried by the refrigerant is transferred into mine water through the heat exchanger, so that the effect of underground refrigeration is achieved. After the water is cooled, the water is sent back to the regulating reservoir 2 through the third circulating pump 81 to be circularly heated.
Claims (8)
1. A mine water treatment facilities of cyclic utilization, characterized by includes:
be equipped with grid (1) in equalizing basin (2), equalizing basin (2) are connected with ceramic membrane system (3), and ceramic membrane system (3) are connected with activated carbon filter (4), and activated carbon filter (4) are connected with clean water basin (5), and clean water basin (5) are connected with big lane negative pressure induction automatic sprinkler (6), geothermal power generation system (7), groundwater source heat pump system (8) simultaneously.
2. A recycled mine water treatment plant according to claim 1, characterized in that a first blower (21) is arranged in the regulating reservoir (2).
3. The mine water treatment device for recycling according to claim 1, wherein an electric controller (31), a first circulating pump (32), a membrane module (33) and a backwashing pump (34) are arranged in the ceramic membrane system (3), the first circulating pump (32) is connected with the membrane module (33), and the backwashing pump (34) is connected with the other end of the membrane module (33).
4. A recycled mine water treatment plant according to claim 1, characterized in that the activated carbon filter (4) comprises a second blower (41).
5. A recycled mine water treatment apparatus according to claim 1, characterized in that a drain pump (51) is provided in the clean water basin (5).
6. The mine water treatment device for recycling according to claim 1, wherein the main roadway negative pressure induction automatic sprinkler (6) comprises a controller (61), an infrared sensor (62), an electric ball valve (63) and a spray head (64), wherein the controller (61) is provided with the two infrared sensors (62), and the infrared sensors are sequentially connected with the electric ball valve (63) and the spray head (64).
7. The mine water recycling device according to claim 1, wherein the geothermal power generation system (7) comprises a control valve (71) connected with a heat exchanger (72), a turbine (73) and a generator (74) in sequence, the turbine (73) is simultaneously connected with a condenser (75) and a cooling tower (76) in sequence and then connected with the heat exchanger (72), and the heat exchanger (72) is connected with a second circulating pump (77).
8. The mine water treatment device for recycling according to claim 1, wherein the underground water source heat pump system (8) comprises a third circulating pump (81) connected with an electronic expansion valve (82) inside a heat exchanger unit, wherein the electronic expansion valve (82) is connected with an evaporator (83), a compressor (84) and a condenser (85) in sequence and then connected with the third circulating pump (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211036013.5A CN115340241A (en) | 2022-08-27 | 2022-08-27 | Mine water treatment device capable of being recycled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211036013.5A CN115340241A (en) | 2022-08-27 | 2022-08-27 | Mine water treatment device capable of being recycled |
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| Publication Number | Publication Date |
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| CN115340241A true CN115340241A (en) | 2022-11-15 |
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| CN202211036013.5A Pending CN115340241A (en) | 2022-08-27 | 2022-08-27 | Mine water treatment device capable of being recycled |
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2022
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