Sewage purification treatment device for underground goaf

Abstract

The utility model discloses a sewage purification treatment device for an underground goaf, which belongs to the technical field of sewage purification treatment and comprises a goaf, a coal pillar and a sealing wall. The goaf coal gangue has the effects of filtering, adsorbing and purifying sewage, water flow is filtered, precipitated and adsorbed to achieve the water quality purification effect, the desilting frequency of a main water sump and an auxiliary water sump can be reduced, meanwhile, the pressure of a ground mine water treatment station is relieved, desilting of a pre-sedimentation tank and an adjusting tank is eradicated, the use amount of chemicals of the ground water treatment station is reduced, and the sewage treatment efficiency is improved. The pretreatment structure is arranged at the water inlet pipe, wastewater can be preliminarily filtered, the pretreatment structure is used in cooperation with a gear motor and a spiral blade, filtered sludge can be rapidly discharged conveniently, normal flowing of the wastewater is not affected, the pretreatment structure is installed through a first flange and a bolt assembly, dismounting operation is convenient, and the practicability is high. The preliminary filtering assembly is in threaded connection, the use stability is high after connection, and disassembly and replacement are convenient.

Description

Technical Field

[0001] This utility model relates to the field of wastewater purification and treatment technology, and in particular to a wastewater purification and treatment device for underground goaf areas. Background Technology

[0002] During coal mining, coal-water coexistence is a common phenomenon in mining areas. These coal mining wastewaters contain a large amount of suspended solids, COD, Fe, Mn, silt and other elements. These elements are highly destructive to the environment and cause waste of water resources. In order to protect the environment and ensure the sustainable use of water resources, it is necessary to purify the wastewater.

[0003] Traditional treatment methods involve directly discharging wastewater into main and auxiliary water tanks and a surface mine water treatment station, where the wastewater is purified. This leads to frequent cleaning of the main and auxiliary water tanks and causes a series of problems such as siltation and membrane blockage in the pre-sedimentation tank of the surface water treatment station. More time is needed for cleaning in the later stages, resulting in higher overall wastewater treatment and purification costs. Utility Model Content

[0004] The main objective of this invention is to provide a wastewater purification and treatment device for underground goaf areas, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A wastewater purification and treatment device for underground goaf areas includes a goaf area, a coal pillar, and a sealing wall. The sealing wall is connected to the coal pillar. An inlet pipe is connected to the sealing wall on one side of the coal pillar, and an outlet pipe is installed on the sealing wall on the other side of the coal pillar. A pretreatment structure is installed at the end of the inlet pipe.

[0007] Preferably, the water inlet pipe passes through the sealing wall, and the end of the water inlet pipe is provided with a mounting flange, and the water inlet pipe is fixedly connected to the pretreatment structure through the mounting flange.

[0008] Preferably, the water outlet pipe passes through the sealed wall, and a pipe flange is provided at the end of the water outlet pipe.

[0009] Preferably, the pretreatment structure includes a filter tube, a geared motor, a rotating shaft, spiral blades, a drain pipe, a preliminary filtration assembly, a first flange, a second flange, a bolt assembly, and a discharge pipe. The filter tube is fixedly connected to the discharge pipe, the geared motor is installed at the lower end of the discharge pipe, the rotating shaft is fixedly connected to the spiral blades and is installed inside the discharge pipe, and the drain pipe is located at the upper end of the discharge pipe.

[0010] Preferably, the preliminary filtration assembly is disposed at the end of the filter tube, the first flange and the second flange are fixed at both ends of the filter tube, and the first flange is fixedly connected to the mounting flange at the end of the water inlet pipe by a bolt assembly. The bolt assembly includes a connecting bolt and a nut, the connecting bolt passes through the first flange and the mounting flange, and the nut is disposed at the end of the connecting bolt.

[0011] Preferably, the preliminary filtration assembly includes an internal thread, a threaded connecting bracket, and a filter screen. The internal thread is disposed at one end inside the filter tube, the filter screen is fixed on the threaded connecting bracket, and the threaded connecting bracket is installed inside the filter tube through the internal thread.

[0012] Compared with the prior art, this utility model has the following beneficial effects: This underground goaf wastewater purification device utilizes the filtering and adsorption properties of coal gangue in the goaf to purify wastewater. Water flows through filtration, sedimentation, and adsorption to achieve water purification, reducing the number of sludge removals in the main and auxiliary water tanks, relieving pressure on surface mine water treatment stations, eliminating the need for sludge removal in pre-sedimentation tanks and regulating tanks, reducing the amount of chemicals used in surface water treatment stations, and improving wastewater treatment efficiency. A pretreatment structure is installed at the inlet pipe to perform preliminary filtration of wastewater. Combined with a geared motor and spiral blades, it facilitates the rapid discharge of filtered sludge without affecting the normal flow of wastewater. The pretreatment structure is installed using a first flange and bolt assembly, which is easy to disassemble. The preliminary filter assembly is threaded, ensuring high stability after connection and easy disassembly and replacement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the pretreatment structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the filter tube of this utility model;

[0016] Figure 4 This is a schematic diagram of the preliminary filter assembly of this utility model.

[0017] In the diagram: 1. Goaf; 2. Coal pillar; 3. Sealing wall; 4. Water inlet pipe; 5. Pretreatment structure; 501. Filter pipe; 502. Gear motor; 503. Shaft; 504. Spiral blade; 505. Sewage pipe; 506. Preliminary filtration assembly; 5061. Internal thread; 5062. Threaded connection frame; 5063. Filter screen; 507. First flange; 508. Second flange; 509. Bolt assembly; 510. Discharge pipe; 6. Water outlet pipe. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-4 As shown, a wastewater purification and treatment device for underground goaf areas includes a goaf area 1, a coal pillar 2, and a sealing wall 3. The sealing wall 3 is connected to the coal pillar 2. A water inlet pipe 4 is connected to the sealing wall 3 on one side of the coal pillar 2, and a water outlet pipe 6 is installed on the sealing wall 3 on the other side of the coal pillar 2. A pretreatment structure 5 is installed at the end of the water inlet pipe 4. The water inlet pipe 4 passes through the sealing wall 3, and an installation flange is provided at the end of the water inlet pipe 4. The water inlet pipe 4 is fixedly connected to the pretreatment structure 5 through the installation flange. The water outlet pipe 6 passes through the sealing wall 3, and a pipe flange is provided at the end of the water outlet pipe 6.

[0020] When setting up the wastewater purification and treatment device, an inlet pipe 4 and an outlet pipe 6 are pre-embedded in the sealed wall 3. The inlet pipe 4 is connected to the pretreatment structure 5 through a flange. Wastewater flows into the pretreatment structure 5 through the pipe. After the preliminary treatment by the pretreatment structure 5, the wastewater enters the goaf 1 through the inlet pipe 4. The coal gangue inside the goaf 1 filters, settles, and adsorbs the wastewater. The purified water flows into the raw water pool of the underground water treatment station. After the raw water is treated by the underground water treatment station, it continues to be supplied to various mining faces for applications such as spraying and cooling. This completes the wastewater purification and treatment work.

[0021] It should be noted that the coal gangue inside the goaf 1 has the function of filtering and adsorbing to purify sewage. The water flows through filtration, sedimentation and adsorption to achieve water quality purification effect, which can reduce the number of dredging of the main and auxiliary water tanks, relieve the pressure of the surface mine water treatment station, eliminate the need for dredging of the pre-sedimentation tank and equalization tank, reduce the amount of chemicals used in the surface water treatment station and improve sewage treatment efficiency.

[0022] According to the above implementation scheme, the pretreatment structure 5 includes a filter pipe 501, a reduction motor 502, a rotating shaft 503, a spiral blade 504, a drain pipe 505, a preliminary filtration assembly 506, a first flange 507, a second flange 508, a bolt assembly 509, and a discharge pipe 510. The filter pipe 501 is fixedly connected to the discharge pipe 510. The reduction motor 502 is installed at the lower end of the discharge pipe 510. The rotating shaft 503 is fixedly connected to the spiral blade 504 and is installed inside the discharge pipe 510. The drain pipe 505 is located at the upper end of the discharge pipe 510. The preliminary filtration assembly 506 is located at the end of the filter pipe 501. The first flange 507 and the second flange 508 are fixed at both ends of the filter pipe 501. The first flange 507 is fixedly connected to the mounting flange at the end of the inlet pipe 4 through the bolt assembly 509. The bolt assembly 509 includes a connecting bolt and a nut. The connecting bolt passes through the first flange 507 and the mounting flange, and the nut is located at the end of the connecting bolt.

[0023] The preliminary filtration assembly 506 includes an internal thread 5061, a threaded connecting bracket 5062, and a filter screen 5063. The internal thread 5061 is located at one end inside the filter tube 501, and the filter screen 5063 is fixed on the threaded connecting bracket 5062. The threaded connecting bracket 5062 is installed inside the filter tube 501 through the internal thread 5061.

[0024] During the installation of the pretreatment structure 5, the first flange 507 is attached to the mounting flange. The connecting bolts in the bolt assembly 509 pass through the first flange 507 and the mounting flange. Nuts are placed at the ends of the connecting bolts to fix the first flange 507 and the mounting flange, thus completing the installation of the entire pretreatment structure 5. The wastewater pipeline is connected using the second flange 508. In use, the wastewater flows in the filter pipe 501. When the wastewater passes through the preliminary filter assembly 506, the filter screen 5063 performs preliminary filtration on the wastewater. The treated wastewater continues to flow through the inlet pipe 4 into the goaf area 1 for purification. The filtered impurities, sludge, etc., remain in the filter pipe 501 and... At the junction of the discharge pipe 510, the geared motor 502 simultaneously drives the rotating shaft 503 and the spiral blade 504 to rotate. Under the action of the spiral blade 504, impurities and sludge rise and move along the discharge pipe 510, and are finally discharged from the sewage pipe 505. This allows for sewage discharge while filtering, avoiding excessive sludge accumulation that could cause blockage. At the same time, the spiral blade 504 does not affect the normal flow of wastewater during sewage discharge. If the preliminary filter component 506 needs to be replaced, the entire pretreatment structure 5 is disassembled, and the threaded connecting bracket 5062 is rotated to remove it from the internal thread 5061. Then, it can be replaced and installed for use. The structure is simple and the operation is convenient and quick.

[0025] It should be noted that a pretreatment structure 5 is installed at the inlet pipe 4 to perform preliminary filtration of wastewater. It works in conjunction with the geared motor 502 and the spiral blade 504 to facilitate the rapid discharge of filtered sludge without affecting the normal flow of wastewater. The pretreatment structure 5 is installed using a first flange 507 and bolt assembly 509 for easy disassembly. The preliminary filter assembly 506 is threaded, which ensures high stability after connection and facilitates disassembly and replacement.

[0026] The foregoing describes the working principle, features, and beneficial effects of this utility model. Those skilled in the art will understand from the foregoing that it does not limit the utility model. The embodiments and description above illustrate the basic principles and features of this utility model. Various changes and improvements can be made to this utility model while remaining consistent with its concept, and all such improvements should fall within the scope of protection claimed by this utility model.

Claims

1. A device for purifying sewage water for use in a mine gob, characterized in that: Including goaf (1), coal pillar (2) and sealing wall (3), sealing wall (3) is connected on coal pillar (2), the sealing wall (3) on the side of coal pillar (2) is connected with water inlet pipe (4), and the sealing wall (3) on the other side of coal pillar (2) is installed with water outlet pipe (6), the end of water inlet pipe (4) is installed with pretreatment structure (5).

2. A device for purifying sewage water for use in a gob area of a mine according to claim 1, characterized in that: The water inlet pipe (4) penetrates the sealing wall (3), and the end of the water inlet pipe (4) is provided with a mounting flange, and the water inlet pipe (4) is fixedly connected with the pretreatment structure (5) through the mounting flange.

3. A device for purifying sewage water for use in a gob area of a mine according to claim 2, characterized in that: The water outlet pipe (6) penetrates the sealing wall (3), and the end of the water outlet pipe (6) is provided with a pipe flange.

4. A device for purifying sewage water for use in a gob area of a mine according to claim 3, characterized in that: The pretreatment structure (5) includes a filter pipe (501), a speed reducer (502), a rotating shaft (503), a spiral blade (504), a blowdown pipe (505), a preliminary filtration assembly (506), a first flange (507), a second flange (508), a bolt assembly (509) and a discharge pipe (510), the filter pipe (501) is fixedly connected with the discharge pipe (510), the speed reducer (502) is installed at the lower end of the discharge pipe (510), the rotating shaft (503) is fixedly connected with the spiral blade (504), and the rotating shaft (503) is installed in the discharge pipe (510), the blowdown pipe (505) is arranged at the upper end of the discharge pipe (510).

5. A device for purifying sewage water for use in a gob area of a mine according to claim 4, characterized in that: The preliminary filtration assembly (506) is arranged at the end of the filter pipe (501), the first flange (507) and the second flange (508) are fixedly connected at both ends of the filter pipe (501), and the first flange (507) is fixedly connected with the mounting flange at the end of the water inlet pipe (4) through the bolt assembly (509), the bolt assembly (509) includes connecting bolts and nuts, the connecting bolts penetrate the first flange (507) and the mounting flange, and the nuts are arranged at the ends of the connecting bolts.

6. A device for purifying sewage water for use in a gob area of a mine according to claim 5, characterized in that: The preliminary filtration assembly (506) includes an internal thread (5061), a threaded connection frame (5062) and a filter screen (5063), the internal thread (5061) is arranged at one end inside the filter pipe (501), the filter screen (5063) is fixedly connected to the threaded connection frame (5062), and the threaded connection frame (5062) is installed in the filter pipe (501) through the internal thread (5061).

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