CN114506934A - High-suspended matter mine water underground short-flow direct filtration treatment device and method - Google Patents

Abstract

The invention relates to the technical field of mine water treatment, in particular to a high-suspended matter mine water underground short-flow direct filtration treatment device and method. Comprises a regulating reservoir which is suitable for storing mine water; the self-cleaning filter is communicated with the regulating tank and is suitable for primary filtering of mine water; and the ultrafiltration device is communicated with the self-cleaning filter and is suitable for carrying out secondary filtration on mine water, and a concentrated solution outlet of the ultrafiltration device is communicated with the regulating reservoir so that concentrated solution flows back to the regulating reservoir through a pump. The device has simple filtration process, small occupied area and low capital construction cost; no need of adding medicine, low treatment cost; is particularly suitable for downhole processing; the water consumption of the self-washing filter is small, and the concentrated solution of the ultrafiltration section flows back to the regulating tank for circular treatment, so that the water consumption is reduced, and the cost is further reduced; the treatment effect is good after twice filtration; the device can be used as a pretreatment module, is combined with units such as reverse osmosis and the like, can also be independently applied, is not limited by a use scene, and has wider application range.

Description

A kind of high suspended solids mine water underground short flow straight filter treatment device and method

technical field

The invention relates to the technical field of mine water treatment, in particular to an underground short-flow straight filtration treatment device and method for high suspended solids mine water.

Background technique

Mine water is produced by coal mining. For every ton of coal mined, about 2.1 cubic meters of mine water is discharged. Mine water is affected by mining into coal and rock dust, containing suspended solids and bacteria, etc., and must be treated before it can be reused and utilized as resources. Most of the coal mines in my country have a mining depth of between tens of meters and hundreds of meters. If the mine water is pressurized to the ground for treatment, there will be excessive power consumption, vulnerable pump casings, and excessive pressure in the water supply pipeline. , The problem of difficulty in decompressing the sewer pipeline. Therefore, downhole processing and in-situ reuse are inevitable choices.

The existing conventional treatment technology for mine water involves coagulation, sedimentation, filtration, etc. The conventional treatment method has long process flow, long treatment time and high cost, and it is difficult to meet the requirements of efficient, fast and economical pretreatment of mine water. There is another improved technology-high fiber filter, which can be used for the treatment of high-concentration suspended solids mine water. It has the advantages of small footprint, but it is easy to block, frequent backwashing, and the fibers are easy to ball and break. It is only suitable for use in specific occasions such as limited coal transportation ports, and it is not universal and popular. There is also an improved technology-coagulation combined with heavy medium separation technology, which can reduce the area of the sedimentation tank and the sedimentation time, and can use the cyclone desander to realize the recovery of the heavy medium, but on the one hand, it still needs to add and mix Coagulant and coagulation aid treatment, on the other hand, the treatment effect of high suspended solids influent is not good.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the defects of long mine water treatment process, poor effect and narrow scope of application in the prior art, so as to provide a high suspended solids mine water underground short-flow straight filtration treatment device and method.

The high suspended solids mine water underground short-flow straight filtration treatment device provided by the present invention includes:

Adjustment pool, suitable for storing mine water;

A self-cleaning filter, which is communicated with the regulating tank and is suitable for primary filtration of mine water;

Ultrafiltration device, which communicates with the self-cleaning filter and is suitable for secondary filtration of mine water, and the concentrated solution outlet of the ultrafiltration device is communicated with the adjustment tank, so that the concentrated solution is returned to the adjustment tank inside the pool.

Optionally, the bottom of the adjustment tank is adapted to communicate with the upper section of the inclined waste roadway, and further includes:

The backflow mechanism is suitable for backflowing the supernatant generated by the inclined waste roadway into the adjustment tank.

Optionally, an inclined plate is fixed in the adjustment tank.

Optionally, an overflow weir is fixed in the adjustment tank, the overflow weir divides the adjustment tank into a water storage area and a to-be-transfer area, and the upper part of the water storage area communicates with the overflow weir through the overflow weir. The to-be-transferred area is communicated, the bottom of the water storage area is adapted to communicate with the inclined exhaust gas tunnel, and the self-cleaning filter is communicated with the to-be-transferred area.

Optionally, also include:

a water inlet mechanism, suitable for delivering mine water to the water storage area;

a water delivery mechanism, adapted to deliver the mine water in the to-be-transferred area to the self-cleaning filter;

a liquid level sensor, installed in the to-be-turned area and adapted to detect the water level in the to-be-turned area;

A control device, connected with the water inlet mechanism, the water delivery mechanism and the liquid level sensor, the controller is adapted to control the water inlet mechanism to stop when receiving a liquid level signal higher than the preset maximum liquid level, and when When receiving a signal lower than the preset minimum liquid level, the water delivery mechanism stops moving.

Optionally, the self-cleaning filter is a disc-type self-cleaning filter.

Optionally, the ultrafiltration membrane of the ultrafiltration device adopts a conductive polyceramic membrane.

The high suspended solids mine water underground short-flow direct filtration treatment method provided by the present invention comprises the following steps:

S1. Introduce the mine water into the adjustment tank for precipitation;

S2. Introduce the mine water in the conditioning tank into the self-cleaning filter for preliminary filtration;

S3. Introduce the mine water filtered by the self-cleaning filter into the ultrafiltration device for secondary filtration;

S4. Return the concentrated solution filtered by the ultrafiltration device to the adjustment tank.

Optionally, the adjustment tank is placed above the inclined waste roadway and its bottom is communicated with the upper section of the inclined waste roadway, the sludge generated in the adjustment tank is discharged into the inclined waste roadway, and the inclined waste roadway is discharged. The resulting supernatant is returned to the conditioning tank.

Optionally, an overflow weir is fixed in the adjustment tank, and the overflow weir divides the adjustment tank into a water storage area and a to-be-transfer area; the upper part of the water storage area communicates with the overflow weir through the overflow weir. The area to be transferred is connected, the inclined abandoned roadway is connected to the bottom of the water storage area, the self-cleaning filter is connected to the area to be transferred, and mine water is injected into the water storage area in step S1.

The technical scheme of the present invention has the following advantages:

1. The high suspended solids mine water underground short-flow straight filtration treatment device of the present invention comprises a conditioning tank, a self-cleaning filter and an ultrafiltration device, and the mine water in the conditioning tank is filtered twice through the self-cleaning filter and the ultrafiltration device, The concentrated solution of the ultrafiltration device is returned to the adjustment tank for reprocessing. The filtration process is simple, occupying less land, and the cost of infrastructure is low; no need to add chemicals, and the cost of treatment is low; the water consumption of the self-flushing filter is low, and the concentrated liquid of the ultrafiltration device is returned to the adjustment tank for recycling, reducing the amount of waste water and further reducing costs. ; After two filtrations, the treatment effect is good; it can be used as a preprocessing module, combined with reverse osmosis and other units, or can be used independently, not limited by the use scene, and has a wider range of applications.

2. In the high suspended solids mine water underground short-flow straight filtration treatment device of the present invention, the bottom of the conditioning tank is communicated with the inclined waste roadway, and the inclined waste roadway is used to collect the sediment produced by the conditioning tank, and the supernatant produced is returned to the tank. It is transmitted to the adjustment tank, which reduces the cleaning times of the adjustment tank and makes the operation simpler.

3. The high suspended solids mine water underground short-flow straight filtration treatment device of the present invention is provided with an inclined plate in the adjustment tank. After the mine water contacts the inclined plate, the running speed of the suspended solids and the water along the inclined plate will be different, so that the suspension can be accelerated. Therefore, it can realize the efficient treatment of suspended solids in a limited space.

4. The high suspended solids mine water underground short-flow straight filtration treatment device of the present invention is provided with an overflow weir in the adjustment tank, and the overflow weir separates the adjustment tank into a water storage area and a to-be-transferred area. The upper part is communicated with the to-be-transferred area through the overflow weir. The liquid level in the water storage area must be higher than the minimum liquid level requirement of the overflow weir to enter the waiting area. On the one hand, the liquid level in the water storage area is ensured so that it will not be too low, and the newly injected mine water will not be disturbed and deposited. On the other hand, the mine water in the water storage area can only enter the waiting area through the overflow weir after a certain accumulation and reach a certain liquid level, which reduces the number of mines entering the waiting area. The content of suspended solids in the water is conducive to subsequent filtration and improves the filtration effect.

5. The high suspended solids mine water underground short-flow straight filtration treatment device of the present invention is also provided with a water inlet mechanism, a water delivery mechanism, a liquid level sensor and a control device, and the liquid level sensor is used to monitor the water level in the to-be-turned pool , the control device is suitable for controlling the actions of the water inlet mechanism and the water delivery mechanism according to the liquid level signal detected by the liquid level gauge sensor, which can automatically realize the monitoring of the water level, ensure the normal operation of each component, save manpower, and be more convenient to use. .

6. The high suspended solids mine water underground short-flow straight filtration treatment device of the present invention adopts a disc-type self-cleaning filter, which has good filtering effect and high cleaning efficiency.

7. The high suspended solids mine water underground short-flow straight filtration treatment device of the present invention, the ultrafiltration device adopts a conductive polyceramic membrane, and the membrane surface is super hydrophilic and oleophobic, and has anti-pollution, no balling, no risk of wire breakage, and is extremely easy to use. The advantages of cleaning, heat resistance, acid and alkali resistance, and organic solvent resistance.

8. The present invention also provides a short-flow direct filtration treatment method for mine water with high suspended solids, which is a short-range, modular, intelligent, and automated high-efficiency treatment technology, which can realize unattended, unmanned mining, and natural Safe, especially suitable for the treatment of underground mine water.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the schematic diagram of the high suspended solids mine water underground short-flow straight filtration treatment device in the embodiment of the present invention;

Fig. 2 is the mine water turbidity and suspended matter concentration diagram before and after the method of the embodiment of the present invention is used for treatment;

FIG. 3 is a particle size distribution diagram of suspended solids in mine water before and after treatment by the method according to an embodiment of the present invention.

Description of reference numbers:

1. Regulating tank; 11. Inclined plate; 12. Overflow weir; 13. Water storage area; 14. Transfer area; 2. Self-cleaning filter; 3. Ultrafiltration device; 4. Inclined abandoned roadway.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

The embodiment of the present invention provides an underground short-flow straight filtration treatment device for high suspended solids mine water. Referring to FIG. 1 , it includes:

The regulating pool 1 is suitable for storing mine water. The adjustment tank 1 is mainly used to adjust the water quantity, uniform the water quality, remove some suspended solids, and play a buffering effect on the water quality change.

The self-cleaning filter 2 communicates with the conditioning tank 1 and is suitable for primary filtration of mine water. Specifically, the adjustment tank 1 can be higher than the self-cleaning filter 2, and the mine water uses its own potential energy to enter the self-cleaning filter 2 for filtration; or the adjustment tank 1 pumps the internal mine water to the self-cleaning filter 2 through a pump; The latter is preferred because the self-cleaning filter 2 can be provided with sufficient pressure by the pump to ensure smooth filtration. The self-cleaning filter 2, that is, a filter capable of self-cleaning, preferably adopts a disc-type self-cleaning filter, as described in the patent with the publication number of CN 210097075 U. Specifically, the filtration precision of the disc self-cleaning filter is preferably 50 μm, and its core components are stacked polypropylene discs with grooves or edges; during filtration, sewage enters from the outside, and the filter discs are under the spring force. They are tightly pressed together under the action of hydraulic force, and large particles and coarse fibers are directly intercepted to achieve surface filtration; smaller particles and fibers enter the grooved holes and then enter the interior of the disc, and the pores gradually decrease along the way, so that the Fine particles and fibers are intercepted on the way of each channel to realize deep filtration; the filtered water is connected to the subsequent ultrafiltration device 3 for treatment; the filter is controlled by time or pressure difference to realize fully automatic operation; the pressure difference control method uses in and out The pressure difference between the water is used as a control signal; as the suspended matter is continuously intercepted, the pressure loss increases rapidly; when the pressure difference between the inlet and outlet reaches the preset value, the automatic backwashing process starts; during the backwashing process, all discs and The small pores between the discs are loosened; the nozzle located in the center of the filter element sprays water along the tangential line to make the discs rotate. It is discharged through the sewage outlet; after that, the backwash valve returns to the filtering position, the spring force on the filter element presses the disc again, and returns to the filtering state; the device can realize high-speed and thorough backwashing, which can be completed in only tens of seconds. The water consumption for washing is very small, accounting for only 0.5% of the water output.

The ultrafiltration device 3 is communicated with the self-cleaning filter 2 and is suitable for secondary filtration of the mine water, and the concentrated solution outlet of the ultrafiltration device 3 is communicated with the adjustment tank 1 to make the concentrated solution flow back to in the adjustment tank 1. The filtration membrane of the ultrafiltration device 3 is preferably a conductive polyceramic membrane, and the membrane surface is super hydrophilic and oleophobic, with anti-pollution, no balling, no risk of wire breakage, easy cleaning, heat resistance, acid and alkali resistance, organic solvent resistance, etc. Features: The inlet grid of the membrane module adopts a "corrugated" structure diversion grid, which can withstand high suspended solids content in the inlet water (up to 10000mg/L) compared with traditional diamond or flat grids, no dead angle, and ultra-low pressure drop; The filter membrane has a molecular weight cut-off of 250KDa, a pore size of 0.05μm, a single-piece membrane flux of 45-55L/h, and a water production rate of 80%-95%. The concentrated solution of the ultrafiltration device 3 is returned to the regulating tank 1 by the lifting action of the pump.

The high suspended solids mine water underground short-flow direct filtration treatment device in this embodiment has simple filtration process, less land occupation, and low infrastructure cost; no need to add chemicals, and the treatment cost is low; the self-flushing filter consumes less water, and the ultrafiltration device concentrates The liquid is returned to the conditioning tank 1 for recycling treatment, which reduces the amount of waste water and further reduces the cost; after two filtrations, the treatment effect is good; it can be used as a pretreatment module, combined with reverse osmosis and other units, or can be used independently without being affected by the use of The limitations of the scene are applicable to a wider range.

As an improved solution: the bottom of the adjustment tank 1 is adapted to communicate with the upper section of the inclined waste roadway 4, and the processing device further includes: a return mechanism, which is suitable for returning the supernatant generated by the inclined waste roadway 4 to the conditioning pool. The return mechanism can specifically adopt the combined structure of the pump and the pipeline. The inclined waste roadway 4 is an inclinedly arranged roadway, and the ends thereof are not open, so that supernatant liquid can be produced by sedimentation. When in use, the adjustment tank 1 is placed above the inclined waste gas roadway 4, and the sludge produced by the adjustment tank 1 enters the upper section of the inclined waste roadway 4, and realizes self-flow under the action of the terrain difference.

Through this improved scheme, the mud in the adjustment tank 1 can be collected automatically without manual monitoring, and the regular cleaning reduces labor costs; in addition, the supernatant generated in the inclined abandoned roadway 4 can also be returned to the adjustment tank 1, The waste water volume is further reduced and the cost is reduced.

As an improved solution, a sloping plate 11 is fixed in the adjustment tank 1 . Preferably, a plurality of inclined plates 11 are provided and distributed in parallel along the length or width direction of the adjustment tank 1 .

By adopting the improved solution, when the mine water contacts the inclined plate 11, the running speed of the suspended matter and the water along the inclined plate 11 will be different, which can accelerate the accumulation of the suspended matter, thereby realizing the efficient treatment of the suspended matter in the limited space.

As an improved solution: an overflow weir 12 is fixed in the adjustment tank 1 , and the overflow weir 12 divides the adjustment tank 1 into a water storage area 13 and a to-be-transfer area 14 . The upper part is communicated with the waiting area 14 through the overflow weir 12 , the bottom of the water storage area 13 is suitable for communicating with the inclined exhaust gas tunnel 4 , and the self-cleaning filter 2 is connected with the waiting area 14 Connected. When in use, the mine water is injected into the water storage area 13 for storage. When the water level in the water storage area 13 is higher than the minimum liquid level required by the overflow weir 12, the mine water in the water storage area 13 will pass through the overflow. The weir 12 enters the to-be-turned zone 14 .

Through this improved scheme, on the one hand, the liquid level of the water storage area 13 is ensured so that it will not be too low, so as to avoid newly injected mine water from disturbing the deposited sediment and affecting the treatment efficiency of suspended solids; After a certain amount of accumulation, the mine water in the area 13 can enter the waiting area 14 through the overflow weir 12 after reaching a certain liquid level, which reduces the suspended solids content in the mine water entering the waiting area 14, which is beneficial to the subsequent filtration and improves the filtration effect. .

As an improved solution, the processing device further includes:

a water inlet mechanism, suitable for transporting mine water into the water storage area 13;

Water conveying mechanism, suitable for conveying the mine water in the to-be-transferred area 14 to the self-cleaning filter 2;

a liquid level sensor, installed in the to-be-turned area 14 and adapted to detect the water level in the to-be-turned area 14;

A control device, connected with the water inlet mechanism, the water delivery mechanism and the liquid level sensor, the controller is adapted to control the water inlet mechanism to stop when receiving a liquid level signal higher than the preset maximum liquid level, and when When receiving a signal lower than the preset minimum liquid level, the water delivery mechanism stops moving.

Through the improved scheme, the water delivery mechanism can be controlled to stop working when the water volume is insufficient to avoid damage; the water inlet mechanism can also be controlled to stop working when the water volume is too large, so as to prevent the overflow of the regulating tank 1 from accumulating sludge and overflowing the entire pump station. Damage the electric control cabinet and the motor.

The embodiment of the present invention also provides a short-flow direct filtration treatment method for high suspended solids mine water, comprising the following steps:

S1. Introduce the mine water into the regulating tank 1 for precipitation;

S2. Introduce the mine water in the conditioning tank 1 into the self-cleaning filter 2 for preliminary filtration;

S3. The mine water filtered by the self-cleaning filter 2 is introduced into the ultrafiltration device 3 for secondary filtration;

S4. The concentrated solution filtered by the ultrafiltration device 3 is returned to the conditioning tank 1.

When using the treatment method of this embodiment, when the mine water with the suspended solids concentration of 200-10000mg/L is treated, as shown in Figure 2, the turbidity and suspended solids concentration of the treated mine water are not equal to the turbidity after treatment. Above 15NTU, the concentration of suspended solids is not higher than 5mg/L.

When using the treatment method of this embodiment, when the mine water with a suspended solids concentration of 2000 mg/L is treated, as shown in Figure 3, the particle size distribution of the suspended solids in the mine water before and after treatment is less than 10 μm. More than 60% of the suspended solids are treated, and more than 99% of the suspended solids are less than 80 μm. The particle size of the treated suspended solids is all less than 1 μm.

Further, the adjustment tank 1 is placed above the inclined abandoned roadway 4 and its bottom is communicated with the upper section of the inclined abandoned roadway 4, and the sludge generated in the adjustment tank 1 is discharged into the inclined abandoned roadway 4, so The supernatant liquid produced in the inclined waste roadway 4 is returned to the conditioning tank 1 . The automatic method for adjusting the sludge in the tank 1 can be realized, and manpower is saved; at the same time, the supernatant is returned to the adjustment tank 1 for circulating treatment, which saves water consumption and reduces costs.

Further, an overflow weir 12 is fixed in the adjustment tank 1, and the overflow weir 12 divides the adjustment tank 1 into a water storage area 13 and a waiting area 14; the upper part of the water storage area 13 passes through the The overflow weir 12 is communicated with the to-be-transferred area 14, the inclined waste roadway 4 is communicated with the bottom of the water storage area 13, and the self-cleaning filter 2 is communicated with the to-be-transferred area 14, in step S1 Mine water is injected into the water storage area 13 in the middle direction. On the one hand, the height of the liquid level in the water storage area 13 is ensured so that it will not be too low, so as to avoid the newly injected mine water disturbing the deposited sediment and affecting the treatment efficiency of suspended matter; on the other hand, the mine in the water storage area 13 After a certain amount of accumulation, the water can enter the waiting area 14 through the overflow weir 12 after reaching a certain liquid level, which reduces the suspended solids content in the mine water entering the waiting area 14, facilitates subsequent filtration, and improves the filtration effect.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (10)

1. The utility model provides a high suspended solid mine water short flow is straight strains processing apparatus in pit which characterized in that includes:

the adjusting tank (1) is suitable for storing mine water;

the self-cleaning filter (2) is communicated with the adjusting tank (1) and is suitable for primary filtering of mine water;

and the ultrafiltration device (3) is communicated with the self-cleaning filter (2) and is suitable for carrying out secondary filtration on mine water, and a concentrated solution outlet of the ultrafiltration device (3) is communicated with the adjusting tank (1) so that concentrated solution flows back into the adjusting tank (1) through a pump.

2. The underground short-flow direct filtration treatment device for high-suspended material mine water according to claim 1, wherein the bottom of the adjusting tank (1) is suitable for being communicated with the upper section of the inclined abandoned roadway (4), and further comprises:

and the backflow mechanism is suitable for enabling the supernatant generated by the inclined waste roadway (4) to flow back into the regulating reservoir.

3. The high suspended matter mine water underground short-flow direct filtration treatment device according to claim 1 or 2, characterized in that an inclined plate (11) is fixed in the adjusting tank (1).

4. The underground short-flow straight-filtering treatment device for high-suspended substance mine water according to claim 2, characterized in that an overflow weir (12) is fixed in the adjusting tank (1), the overflow weir (12) divides the adjusting tank (1) into a water storage area (13) and a to-be-transferred area (14), the upper part of the water storage area (13) is communicated with the to-be-transferred area (14) through the overflow weir (12), the bottom of the water storage area (13) is suitable for being communicated with the inclined abandoned roadway (4), and the self-cleaning filter (2) is communicated with the to-be-transferred area (14).

5. The high suspended matter mine water underground short-flow direct filtration treatment device according to claim 4, further comprising:

the water inlet mechanism is suitable for conveying mine water into the water storage area (13);

the water conveying mechanism is suitable for conveying mine water in the area (14) to be transferred into the self-cleaning filter (2);

the liquid level sensor is arranged in the zone (14) to be transferred and is suitable for detecting the water level in the zone (14) to be transferred;

the controller is suitable for controlling the water inlet mechanism to stop acting when receiving a liquid level signal higher than a preset maximum liquid level, and the water delivery mechanism stops acting delicately when receiving a signal lower than a preset minimum liquid level.

6. The high suspended matter mine water underground short flow direct filtration treatment device according to claim 1, wherein the self-cleaning filter (2) is a disc type self-cleaning filter.

7. The underground short-flow direct filtration treatment device for the high-suspended matter mine water according to claim 1, wherein an ultrafiltration membrane of the ultrafiltration device (3) is a conductive ceramic membrane.

8. A high suspended matter mine water underground short-flow direct filtration treatment method is characterized by comprising the following steps:

s1, introducing mine water into a regulating tank (1) for precipitation;

s2, leading the mine water in the regulating reservoir (1) into a self-cleaning filter (2) for primary filtration;

s3, guiding the mine water filtered by the self-cleaning filter (2) into an ultrafiltration device (3) for secondary filtration;

s4, refluxing the concentrated solution filtered by the ultrafiltration device (3) to the regulating tank (1).

9. The underground short-flow direct filtration treatment method for high-suspended material mine water according to claim 8, characterized in that the adjusting tank (1) is placed above the inclined abandoned roadway (4) and the bottom of the adjusting tank is communicated with the upper section of the inclined abandoned roadway (4), sludge generated in the adjusting tank (1) is discharged into the inclined abandoned roadway (4), and supernatant generated in the inclined abandoned roadway (4) flows back into the adjusting tank (1).

10. The underground short-flow direct filtration treatment method for high-suspended substance mine water according to claim 9, characterized in that an overflow weir (12) is fixed in the adjusting tank (1), and the overflow weir (12) divides the adjusting tank (1) into a water storage area (13) and a to-be-transferred area (14); the upper portion of the water storage area (13) is communicated with the to-be-transferred area (14) through the overflow weir (12), the inclined waste roadway (4) is communicated with the bottom of the water storage area (13), the self-cleaning filter (2) is communicated with the to-be-transferred area (14), and mine water is injected into the water storage area (13) in the step S1.

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