Coal mine underground sewage screening and purifying equipment

Abstract

The utility model relates to the technical field of coal mine sewage treatment, in particular to coal mine underground sewage screening and purifying equipment which comprises a sewage pump, the output end of the sewage pump is fixedly communicated with a filtering structure, the front side of the filtering structure is fixedly communicated with a water pumping opening, the filtering structure comprises a filtering box, a main filtering plate is obliquely inserted into the filtering box, and a sewage storage box is fixedly installed on the bottom side of the filtering box. A sewage inlet communicated with the sewage storage tank is formed in the rear edge of the bottom side of the sewage storage tank close to the lower clamping part of the main filter plate; and a reflux inlet communicated with the filter tank is formed in the front edge of the upper surface of the sewage storage tank. According to the utility model, the backflow channel is designed at the bottom of the filter box, so that impurities blocked by the main filter plate are conveyed in an auxiliary manner by utilizing sewage flow and sewage split flow, and impurities adhered to the surface of the main filter plate are removed by utilizing thrust provided by the sewage flow, so that the cycle frequency of cleaning and replacing the main filter plate is greatly prolonged; by reducing the number of times of replacing and cleaning the main filter plate, the overall structure working time occupied by replacing the main filter plate is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine sewage treatment, in particular to a coal mine underground sewage screening and purification device. Background Technique

[0002] A coal mine shaft is the general term for the shafts, chambers, equipment, surface buildings and structures that form the underground coal mine production system. Sometimes, the inclined shafts, vertical shafts, adits, etc. in the underground development of the mine are also called mine shafts. During the coal mine shaft mining process, a large amount of sewage is easily generated in the shaft, so a screening and purification device is used to treat the sewage.

[0003] During the use of the sewage screening and purification equipment, larger impurities such as coal slag in the sewage are filtered through a filter screen. However, the impurities accumulated on the filter screen of the existing sewage screening and purification device are inconvenient to clean in time, and the impurities in the sewage are easy to block the filter screen, thus reducing the filtering efficiency of the filter screen. Content of the Utility Model

[0004] The purpose of the utility model is to provide a coal mine underground sewage screening and purification device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A coal mine underground sewage screening and purification device includes a sewage pump. The output end of the sewage pump is fixedly communicated with a filtering structure. A water pumping port is fixedly communicated with the front side of the filtering structure. The filtering structure includes a filter box. A main filter plate is obliquely inserted inside the filter box. A sewage storage box is fixedly installed at the bottom side of the filter box. A sewage inlet communicating with the sewage storage box is opened at the rear edge near the lower clamping position of the main filter plate at the bottom side of the sewage storage box. A return port communicating with the filter box is opened at the front edge of the upper surface of the sewage storage box.

[0007] Furthermore: The sewage pump includes a pump body. A mounting seat is fixedly installed at the bottom side of the pump body. A pump head is fixedly installed at the front side of the pump body. A liquid outlet interface is fixedly installed at one side of the pump head.

[0008] Furthermore: A first plugging insert piece is clamped at the lower opening of the sewage inlet. A second plugging insert piece is clamped at the upper opening of the return port. An intercepting filter plate is clamped at the lower opening of the return port. A one-way valve with an upward direction is fixedly installed in the middle of the return port. A third plugging insert piece is clamped at the bottom side of the sewage storage box.

[0009] Furthermore: Pulling handles are fixedly installed at the upper edge of the main filter plate and on one side edge of the first plugging insert piece, the second plugging insert piece, the intercepting filter plate and the third plugging insert piece. Sealing strips are fixedly installed at the other three side edges of the main filter plate, the first plugging insert piece, the second plugging insert piece, the intercepting filter plate and the third plugging insert piece.

[0010] Furthermore, the water pumping port includes a water pumping pipe, one end of the water pumping pipe is fixedly installed with a pipe orifice, a protective frame is fixedly installed at the edge of the lower opening of the pipe orifice, a support frame is fixedly installed at the lower opening of the pipe orifice, a primary filter screen is fixedly installed between the respective rods of the support frame, a scraping blade is rotatably installed in the middle of the support frame through a bearing, and a paddle is fixedly connected to the upper side of the middle of the scraping blade.

[0011] Furthermore, the rear surface of the filter box is in communication with the front opening of the pump head.

[0012] Furthermore, the front surface of the filter box is in communication with one end of the water pumping pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Power is provided by a sewage pump, and the sewage in the coal mine is pumped by the water pumping port. After being initially filtered by the water pumping port, the sewage enters the interior of the filter box. The inclined main filter plate performs secondary filtration on the sewage. The impurities intercepted by the main filter plate, under the push of the water flow and the inclined support of the main filter plate, provide a downward component force to the impurities on the surface of the main filter plate, enabling the impurities to slide along the inclined surface of the main filter plate towards the lower edge of the main filter plate, finally gathering at the sewage inlet, and entering the interior of the sewage storage tank for temporary storage under the push of the sewage flowing through the sewage inlet and the diversion of the sewage entering the sewage storage tank. At the same time, the sewage entering the sewage storage tank flows back into the filter box through the return port. A return channel is designed at the bottom of the filter box. While using the sewage flow and sewage diversion to assist in transporting the impurities intercepted by the main filter plate, the thrust provided by the sewage flow itself is used to remove the impurities adhered to the surface of the main filter plate, avoiding clogging of the filter holes of the main filter plate, greatly extending the cycle frequency of cleaning and replacing the main filter plate, reducing the workload of the staff, shortening the overall structural working time occupied by replacing the main filter plate by reducing the number of times of replacing and cleaning the main filter plate, and improving work efficiency.

[0015] 2. The pipe orifice directly extends into the sewage, serves as a sewage pumping port for pumping water, the primary filter screen conducts primary filtration on the pumped sewage, and at the same time, the sewage flow drives the paddle to rotate, thereby driving the scraping blade to rotate on the bottom surface of the primary filter screen, stirring the water flow at the lower opening of the pipe orifice to prevent impurities from blocking the primary filter screen. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the sewage pump in the present utility model;

[0018] Figure 3 is a schematic diagram of the filtering structure in the present utility model;

[0019] Figure 4 This is a schematic diagram of the water pumping port in the present utility model.

[0020] In the figure: 1. Sewage pump; 101. Pump body; 102. Mounting seat; 103. Pump head; 104. Liquid outlet interface; 2. Filter structure; 201. Filter box; 202. Main filter plate; 203. Sewage storage tank; 204. Sewage inlet; 205. First plugging insert; 206. Return port; 207. Second plugging insert; 208. Intercepting filter plate; 209. Third plugging insert; 3. Water pumping port; 301. Water suction pipe; 302. Pipe orifice; 303. Protection frame; 304. Support frame; 305. Primary filter screen; 306. Scraper; 307. Blade. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 4 , in the embodiment of the present utility model, a coal mine underground sewage screening and purification device includes a sewage pump 1. The output end of the sewage pump 1 is fixedly communicated with a filter structure 2. The front side of the filter structure 2 is fixedly communicated with a water pumping port 3. The filter structure 2 includes a filter box 201. A main filter plate 202 is obliquely inserted inside the filter box 201. A sewage storage tank 203 is fixedly installed at the bottom side of the filter box 201. A sewage inlet 204 communicating with the sewage storage tank 203 is opened at the rear edge of the bottom side of the sewage storage tank 203 near the lower clamping position of the main filter plate 202. A return port 206 communicating with the filter box 201 is opened at the front edge of the upper surface of the sewage storage tank 203; the rear side surface of the filter box 201 is communicated with the front opening of the pump head 103; the front side surface of the filter box 201 is communicated with one end of the water suction pipe 301.

[0023] Specifically, powered by the sewage pump 1, the sewage in the coal mine is pumped through the pumping port 3. After being initially filtered by the pumping port 3, the sewage enters the interior of the filter tank 201. The main filter plate 202 in an inclined state filters the sewage for the second time. The impurities intercepted by the main filter plate 202, under the push of the water flow and the inclined support of the main filter plate 202, are provided with a downward component force on the surface of the main filter plate 202, enabling the impurities to slide along the inclined surface of the main filter plate 202 towards the lower edge of the main filter plate 202, and finally gathering at the sewage inlet 204. Driven by the diversion of the sewage entering the storage tank 203 through the sewage inlet 204, the impurities enter the interior of the storage tank 203 for temporary storage. At the same time, the sewage entering the storage tank 203 flows back into the filter tank 201 through the return port 206. A return channel is designed at the bottom of the filter tank 201. While using the sewage flow and the sewage diversion to assist in transporting the impurities intercepted by the main filter plate 202, the adhesion of impurities on the surface of the main filter plate 202 is removed by the thrust provided by the sewage flow itself, avoiding the blockage of the filter holes of the main filter plate 202, greatly extending the cycle frequency of cleaning and replacing the main filter plate 202, reducing the workload of the staff, shortening the overall structural working time occupied by replacing the main filter plate 202 by reducing the number of times of replacing and cleaning the main filter plate 202, and improving work efficiency.

[0024] Embodiment 1

[0025] As Figure 2 shown, in this embodiment, the sewage pump 1 includes a pump body 101. An installation seat 102 is fixedly installed on the bottom side of the pump body 101, and a pump head 103 is fixedly installed on the front side of the pump body 101. A liquid outlet interface 104 is fixedly installed on one side of the pump head 103.

[0026] In this embodiment, the internal blades of the pump head 103 are driven to rotate by the pump body 101 to perform the sewage pumping work and discharge it from the liquid outlet interface 104.

[0027] As Figure 3 shown, in this embodiment, a first sealing insert 205 is clamped at the lower opening of the sewage inlet 204, a second sealing insert 207 is clamped at the upper opening of the return port 206, an intercepting filter plate 208 is clamped at the lower opening of the return port 206, a one-way valve facing upward is fixedly installed in the middle of the return port 206, and a third sealing insert 209 is clamped at the bottom side of the storage tank 203; a pull handle is fixedly installed on the upper edge of the main filter plate 202 and on one side edge of the first sealing insert 205, the second sealing insert 207, the intercepting filter plate 208, and the third sealing insert 209. Sealing strips are fixedly installed on the other three side edges of the main filter plate 202, the first sealing insert 205, the second sealing insert 207, the intercepting filter plate 208, and the third sealing insert 209.

[0028] During specific implementation, the main filter plate 202, the first plugging insert 205, the second plugging insert 207, the intercepting filter plate 208 and the third plugging insert 209 are inserted and pulled through the pulling handle. During normal operation, the main filter plate 202, the intercepting filter plate 208 and the third plugging insert 209 are in a clamped state. The main filter plate 202 is used for filtering. Impurities and sewage are separated and enter the sewage storage tank 203 from the sewage inlet 204. When the sewage enters the filter tank 201 from the return port 206, the intercepting filter plate 208 intercepts the impurities in the returned sewage, and the one-way valve restricts the sewage from entering the sewage storage tank 203 from the return port 206. The flow direction of this sewage diversion also effectively prevents the impurities in the sewage storage tank 203 from flowing back into the filter tank 201 from the sewage inlet 204. The impurities are collected and temporarily stored in the sewage storage tank 203. During sewage discharge, the first plugging insert 205 and the second plugging insert 207 are inserted to block the sewage inlet 204 and the return port 206, and then the third plugging insert 209 is pulled out, and the impurities in the sewage storage tank 203 are directly discharged from the lower opening of the sewage storage tank 203.

[0029] Embodiment Two

[0030] On the basis of Embodiment One, in order to supplement the specific pumping method of pumping sewage through the water pumping port 3 not mentioned in Embodiment One.

[0031] As Figure 4 shown, in this embodiment, the water pumping port 3 includes a water pumping pipe 301. One end of the water pumping pipe 301 is fixedly installed with a pipe orifice 302. A protective frame 303 is fixedly installed at the edge of the lower opening of the pipe orifice 302. A support frame 304 is fixedly installed at the lower opening of the pipe orifice 302. A primary filter screen 305 is fixedly installed between the respective struts of the support frame 304. A scraping blade 306 is rotatably installed in the middle of the support frame 304 through a bearing. A paddle 307 is fixedly connected to the upper side of the middle of the scraping blade 306.

[0032] During specific implementation, the pipe orifice 302 directly extends into the sewage to conduct the pumping work as the sewage extraction port. The primary filter screen 305 conducts primary filtration on the extracted sewage. At the same time, the sewage flow drives the paddle 307 to rotate, thereby driving the scraping blade 306 to rotate on the bottom surface of the primary filter screen 305, agitating the water flow at the lower opening of the pipe orifice 302 to prevent impurities from blocking the primary filter screen 305.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0034] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coal mine underground sewage screening and purification device, comprising a sewage pump (1), characterized in that: The output end of the sewage pump (1) is fixedly connected to a filter structure (2), and the front side of the filter structure (2) is fixedly connected to a water suction port (3). The filter structure (2) comprises a filter box (201), a main filter plate (202) is obliquely inserted inside the filter box (201), a sewage storage box (203) is fixedly installed on the bottom side of the filter box (201), a sewage inlet (204) connected to the sewage storage box (203) is provided at the rear edge of the bottom side of the sewage storage box (203) near the lower clamping position of the main filter plate (202), and a return port (206) connected to the filter box (201) is provided at the front edge of the upper surface of the sewage storage box (203).

2. The coal mine sewage screening and purification equipment according to claim 1 is characterized in that: The sewage pump (1) comprises a pump body (101), a mounting seat (102) is fixedly mounted on the bottom side of the pump body (101), a pump head (103) is fixedly mounted on the front side of the pump body (101), and a liquid outlet interface (104) is fixedly mounted on one side of the pump head (103).

3. The coal mine sewage screening and purification equipment according to claim 2 is characterized in that: A No. 1 plugging insert (205) is clamped at the lower opening of the sewage inlet (204), a No. 2 plugging insert (207) is clamped at the upper opening of the return port (206), an intercepting filter plate (208) is clamped at the lower opening of the return port (206), a non-return valve facing upward is fixedly installed in the middle of the return port (206), and a No. 3 plugging insert (209) is clamped at the bottom side of the sewage storage box (203).

4. The coal mine sewage screening and purification equipment according to claim 3 is characterized in that: A pull-out handle is fixedly mounted on the upper edge of the main filter plate (202) and one side edge of the No. 1 blocking plug (205), the No. 2 blocking plug (207), the intercepting filter plate (208), and the No. 3 blocking plug (209); and a sealing strip is fixedly mounted on the other three side edges of the main filter plate (202), the No. 1 blocking plug (205), the No. 2 blocking plug (207), the intercepting filter plate (208), and the No. 3 blocking plug (209).

5. The coal mine sewage screening and purification equipment according to claim 4, characterized in that: The water suction port (3) comprises a water suction pipe (301), a pipe mouth (302) is fixedly mounted on one end of the water suction pipe (301), a protective frame (303) is fixedly mounted on the lower opening edge of the pipe mouth (302), a support frame (304) is fixedly mounted at the lower opening of the pipe mouth (302), a primary filter screen (305) is fixedly mounted between the respective frame rods of the support frame (304), a scraper (306) is rotatably mounted in the middle of the support frame (304) via a bearing, and a paddle (307) is fixedly connected to the upper side of the middle of the scraper (306).

6. The coal mine sewage screening and purification equipment according to claim 5, characterized in that: The rear surface of the filter box (201) and the front opening of the pump head (103) are in communication with each other.

7. The coal mine sewage screening and purification equipment according to claim 6, characterized in that: The front surface of the filter box (201) is in communication with one end of the water extraction pipe (301).

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