Multi-stage filtering device for mine water treatment

Abstract

The utility model relates to the technical field of mine water filtering, and particularly discloses a multistage filtering device for mine water treatment, which comprises a supporting mechanism for providing a filtering cavity for mine water, and a filtering mechanism for performing multistage filtering on the mine water is arranged on the inner side of the supporting mechanism; the supporting mechanism comprises a tank body, the upper outer side of the tank body is communicated with a water inlet pipe, the lower outer side of the tank body is communicated with a water outlet pipe, a blow-off pipe is arranged in the center of the bottom of the tank body, and a cover plate is arranged at the lower end of the blow-off pipe; and the filtering mechanism comprises a first funnel-shaped filter screen arranged in the tank body. The first funnel-shaped filter screen, the second funnel-shaped filter screen and the third funnel-shaped filter screen are arranged at intervals in the tank body, so that added mine water is filtered step by step, and filtered substances are deposited and discharged into the blow-off pipe; and meanwhile, impurities attached to the first funnel-shaped filter screen, the second funnel-shaped filter screen and the third funnel-shaped filter screen are scraped and cleaned through the rotating slag removal assembly, so that the filtering effect and the use convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine water filtration, in particular to a multi-stage filtration device for mine water treatment. Background Art

[0002] During the mining process of coal, groundwater comes into contact with coal seams and rock formations, and with the influence of human activities, a series of physical, chemical and biochemical reactions occur, which leads to very turbid mine water, and the coal blocks and ore blocks inside it are much higher than surface water. From the perspective of environmental protection, it is urgent to filter and treat it to achieve the purpose of protecting the environment. In the primary filtration process, it is necessary to perform multi-stage filtration on mine water with large particles. The existing announcement number is CN 219744197 U. A multi-stage filtration device for mine water treatment can slide to the lowest end of the inclined plate under its own gravity after being pumped into the water inlet tank through the inclined plate set obliquely during use. Automatic collection of large particle impurities is achieved; after a certain amount is collected, the pumping of mine water can be stopped, and the discharge port can be opened to discharge the large particle impurities. However, the above device only relies on the weight of the particles for precipitation, and the sediment in the lower filter component is not easy to clean, resulting in poor filtration effect and affecting the use effect. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-stage filtering device for mine water treatment in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A multi-stage filtering device for treating mine water comprises a supporting mechanism for providing a filtering cavity for mine water, a filtering mechanism for multi-stage filtering of mine water is arranged inside the supporting mechanism; the supporting mechanism comprises a tank body, a water inlet pipe is connected to the upper outer side of the tank body, a water outlet pipe is connected to the lower outer side of the tank body, a sewage pipe is arranged at the center of the bottom of the tank body, and a cover plate is arranged at the lower end of the sewage pipe; the filtering mechanism comprises a first funnel-shaped filter screen arranged inside the tank body, a second funnel-shaped filter screen is arranged at the lower side of the first funnel-shaped filter screen, and a third funnel-shaped filter screen is arranged at the lower side of the second funnel-shaped filter screen, a central axis passing through the first funnel-shaped filter screen, the second funnel-shaped filter screen and the third funnel-shaped filter screen is arranged at the center of the tank body, a power source is connected to the upper end of the central axis, and a slag removal component for removing filtered impurities on the first funnel-shaped filter screen, the second funnel-shaped filter screen and the third funnel-shaped filter screen is arranged on the central axis.

[0006] Further configuration: a support ring is arranged on the inner wall of the tank body, the bottom of the third funnel-shaped filter screen contacts the bottom of the tank body, and the bottom of the second funnel-shaped filter screen is lower than the bottom of the first funnel-shaped filter screen.

[0007] Further configuration: the slag removal assembly includes a first inner scraper evenly fixed on the central axis, a first support rod is fixed on the central axis at the rear side of the first inner scraper rotation, a first outer scraper is arranged on the upper side of the first support rod, a second inner scraper is connected to one side of the first support rod, a second support rod is fixed on the central axis at the rear side of the second inner scraper rotation, a second outer scraper is arranged on the upper side of the second support rod, and a third inner scraper is arranged on one side of the second support rod.

[0008] It is further configured that: the first support rod and the second support rod are provided with grooves for supporting the bottoms of the first funnel-shaped filter screen and the second funnel-shaped filter screen.

[0009] It is further configured that the first inner scraper and the first outer scraper contact the inner and outer walls of the first funnel-shaped filter screen, the second inner scraper and the second outer scraper contact the inner and outer walls of the second funnel-shaped filter screen, and the third inner scraper contacts the inner wall of the third funnel-shaped filter screen.

[0010] Further configuration: the sewage pipe is connected to the bottom of the tank body in a conical shape, an auger blade is arranged on the central axis of the sewage pipe, and the central axis is rotatably connected to the tank body.

[0011] It is further configured that the mesh sizes of the first funnel-shaped filter screen, the second funnel-shaped filter screen and the third funnel-shaped filter screen gradually increase, the water outlet pipe is tangent to the bottom of the tank body, and a supporting leg is provided at the lower end of the tank body.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] By setting the first funnel-shaped filter, the second funnel-shaped filter and the third funnel-shaped filter at intervals in the tank body, the added mine water is gradually filtered, so that the filtered material is deposited and discharged into the sewage pipe. At the same time, the attached debris on the first funnel-shaped filter, the second funnel-shaped filter and the third funnel-shaped filter are scraped and cleaned by the rotating slag removal component, thereby improving the filtering effect and convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is an axonometric diagram of a multi-stage filtering device for mine water treatment described in the utility model;

[0016] Figure 2It is a half-section structural schematic diagram of a multi-stage filtering device for mine water treatment described in the utility model;

[0017] Figure 3 This is a schematic diagram of the main cross-sectional structure of a multi-stage filtering device for mine water treatment described in the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of a tank of a multi-stage filtering device for mine water treatment described in the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of a slag removal component of a multi-stage filtering device for mine water treatment described in the utility model;

[0020] Figure 6 yes Figure 5 Schematic diagram of the top view structure.

[0021] The following are the descriptions of the reference numerals:

[0022] 1. Support mechanism; 11. Tank body; 12. Water inlet pipe; 13. Support legs; 14. Water outlet pipe; 15. Drain pipe; 16. Support ring; 17. Cover plate; 2. Filter mechanism; 21. First funnel-shaped filter screen; 22. Second funnel-shaped filter screen; 23. Third funnel-shaped filter screen; 24. Center axis; 25. Gearbox; 26. Motor; 27. First inner scraper; 28. First support rod; 29. ​​First outer scraper; 210. Second inner scraper; 211. Second support rod; 212. Second outer scraper; 213. Third inner scraper; 214. Auger blade. DETAILED DESCRIPTION

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1-Figure 6 As shown, a multi-stage filtering device for treating mine water comprises a supporting mechanism 1 for providing a filtering cavity for mine water, and a filtering mechanism 2 for performing multi-stage filtering on mine water is arranged inside the supporting mechanism 1;

[0027] In this embodiment: the supporting mechanism 1 includes a tank body 11, a water inlet pipe 12 is connected to the upper outer side of the tank body 11, a water outlet pipe 14 is connected to the lower outer side of the tank body 11, a sewage pipe 15 is arranged at the center of the bottom of the tank body 11, a cover plate 17 is installed at the lower end of the sewage pipe 15, the water outlet pipe 14 is tangent to the bottom of the tank body 11, so that the filtered water can be easily discharged, and a supporting leg 13 is arranged at the lower end of the tank body 11 to support the whole.

[0028] In this embodiment, the filtering mechanism 2 includes a first funnel-shaped filter screen 21 disposed inside the tank body 11, a second funnel-shaped filter screen 22 is disposed below the first funnel-shaped filter screen 21, and a third funnel-shaped filter screen 23 is disposed below the second funnel-shaped filter screen 22. A central shaft 24 passing through the first funnel-shaped filter screen 21, the second funnel-shaped filter screen 22 and the third funnel-shaped filter screen 23 is disposed at the center of the tank body 11, and a gearbox 25 is connected to the upper end of the central shaft 24, and an input end of the gearbox 25 is connected to a motor 26. There is a support ring 16, the bottom of the third funnel-shaped filter screen 23 is in contact with the bottom of the tank body 11, the bottom of the second funnel-shaped filter screen 22 is lower than the bottom of the first funnel-shaped filter screen 21, and the mesh sizes of the first funnel-shaped filter screen 21, the second funnel-shaped filter screen 22 and the third funnel-shaped filter screen 23 gradually increase, so that the particles are isolated from large to small and deposited in the middle position; a slag removal component is provided on the central axis 24 for removing filtered impurities on the first funnel-shaped filter screen 21, the second funnel-shaped filter screen 22 and the third funnel-shaped filter screen 23.

[0029] The slag removal assembly includes a first inner scraper 27 evenly fixed on the central shaft 24, a first support rod 28 is fixed on the central shaft 24 at the rear side of the first inner scraper 27, a first outer scraper 29 is arranged on the upper side of the first support rod 28, a second inner scraper 210 is connected to one side of the first support rod 28, a second support rod 211 is fixed on the central shaft 24 at the rear side of the second inner scraper 210, a second outer scraper 212 is arranged on the upper side of the second support rod 211, and a third inner scraper 213 is arranged on one side of the second support rod 211. The first support rod 28 and the second support rod 211 are provided with grooves for supporting the bottom of the first funnel-shaped filter screen 21 and the second funnel-shaped filter screen 22, so as to improve the stability of the bottom of the first funnel-shaped filter screen 21 and the second funnel-shaped filter screen 22. The first inner scraper 27 and the first outer scraper 29 are in contact with the inner and outer walls of the first funnel-shaped filter 21, the second inner scraper 210 and the second outer scraper 212 are in contact with the inner and outer walls of the second funnel-shaped filter 22, and the third inner scraper 213 is in contact with the inner wall of the third funnel-shaped filter 23. The sewage pipe 15 is connected to the bottom of the tank body 11 in a conical shape, and a screw blade 214 is provided on the central shaft 24 located at the sewage pipe 15. The central shaft 24 is rotatably connected to the tank body 11, and the central shaft 24 is driven to rotate through the gearbox 25 by the motor 26. The first inner scraper 27 on the central shaft 24, the first outer scraper 29 on the first support rod 28, the second inner scraper 210, the second outer scraper 212 on the second support rod 211, and the third inner scraper 213 rotate, so that the first inner scraper 27 and the first outer scraper 29 successively scrape the first funnel-shaped filter 2 1, the second inner scraper 210 and the second outer scraper 212 successively scrape the particles attached to the inner and outer walls of the second funnel-shaped filter screen 22, and the third inner scraper 213 scrapes the particles on the third funnel-shaped filter screen 23, thereby improving the filtering effects of the first funnel-shaped filter screen 21, the second funnel-shaped filter screen 22 and the third funnel-shaped filter screen 23, and accelerating the accumulation of sediment in the sewage pipe 15. When sewage needs to be discharged, the cover plate 17 is removed, and the central shaft 24 drives the auger blade 214 to rotate to push the dirt in the sewage pipe 15 out.

[0030] The working principle and use process of the utility model are as follows: the mine water enters the tank body 11 through the water inlet pipe 12, the large particles are filtered by the first funnel-shaped filter screen 21 and gradually settle to the center bottom of the first funnel-shaped filter screen 21, the water liquid passing through the first funnel-shaped filter screen 21 is filtered by the second funnel-shaped filter screen 22, the medium particles are settled to the center bottom of the second funnel-shaped filter screen 22, the water liquid passing through the second funnel-shaped filter screen 22 is filtered by the third funnel-shaped filter screen 23, the filtered water liquid is discharged through the outlet pipe 14, the filtered particles are gradually deposited in the sewage pipe 15, and at the same time, the central shaft 24 is driven to rotate through the gearbox 25 by the motor 26, the first inner scraper 27 on the central shaft 24, the first outer scraper 29 on the first support rod 28, and the second inner scraper 29 on the second support rod 28 are driven to rotate. The scraper 210, the second outer scraper 212 on the second support rod 211 and the third inner scraper 213 rotate, so that the first inner scraper 27 and the first outer scraper 29 successively scrape the particles attached to the inner and outer walls of the first funnel-shaped filter 21, the second inner scraper 210 and the second outer scraper 212 successively scrape the particles attached to the inner and outer walls of the second funnel-shaped filter 22, and the third inner scraper 213 scrapes the particles on the third funnel-shaped filter 23, thereby improving the filtering effects of the first funnel-shaped filter 21, the second funnel-shaped filter 22 and the third funnel-shaped filter 23, accelerating the accumulation of sediment in the sewage pipe 15, and when sewage needs to be discharged, the cover plate 17 is removed, and the central shaft 24 drives the auger blade 214 to rotate to push out the dirt in the sewage pipe 15, thereby improving the convenience of cleaning.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A multi-stage filtration device for mine water treatment, characterized in that: The invention comprises a support mechanism (1) for providing a filtering cavity for mine water, wherein a filtering mechanism (2) for performing multi-stage filtering on the mine water is arranged inside the support mechanism (1); the support mechanism (1) comprises a tank body (11), wherein the upper outer side of the tank body (11) is connected to a water inlet pipe (12), and the lower outer side of the tank body (11) is connected to a water outlet pipe (14); a sewage pipe (15) is arranged at the center of the bottom of the tank body (11), and a cover plate (17) is arranged at the lower end of the sewage pipe (15); the filtering mechanism (2) comprises a first funnel-shaped filtering net (21) arranged inside the tank body (11), and the first funnel-shaped filtering net A second funnel-shaped filter (22) is arranged at the lower side of the first funnel-shaped filter (21), and a third funnel-shaped filter (23) is arranged at the lower side of the second funnel-shaped filter (22). A central axis (24) passing through the first funnel-shaped filter (21), the second funnel-shaped filter (22) and the third funnel-shaped filter (23) is arranged at the center of the tank body (11). A power source is connected to the upper end of the central axis (24). A slag removal component for removing filtered impurities on the first funnel-shaped filter (21), the second funnel-shaped filter (22) and the third funnel-shaped filter (23) is arranged on the central axis (24).

2. A multi-stage filtration device for mine water treatment according to claim 1, characterized in that: A support ring (16) is provided on the inner wall of the tank body (11), the bottom of the third funnel-shaped filter screen (23) is in contact with the bottom of the tank body (11), and the bottom of the second funnel-shaped filter screen (22) is lower than the bottom of the first funnel-shaped filter screen (21).

3. A multi-stage filtration device for mine water treatment according to claim 2, characterized in that: The slag removal assembly comprises a first inner scraper (27) uniformly fixed on the central shaft (24); a first support rod (28) is fixed on the central shaft (24) at the rear side of the first inner scraper (27) after rotation; a first outer scraper (29) is arranged on the upper side of the first support rod (28); a second inner scraper (210) is connected to one side of the first support rod (28); a second support rod (211) is fixed on the central shaft (24) at the rear side of the second inner scraper (210) after rotation; a second outer scraper (212) is arranged on the upper side of the second support rod (211); and a third inner scraper (213) is arranged on one side of the second support rod (211).

4. A multi-stage filtration device for mine water treatment according to claim 3, characterized in that: The first support rod (28) and the second support rod (211) are provided with grooves for supporting the bottoms of the first funnel-shaped filter screen (21) and the second funnel-shaped filter screen (22).

5. A multi-stage filtration device for mine water treatment according to claim 3, characterized in that: The first inner scraper (27) and the first outer scraper (29) are in contact with the inner and outer walls of the first funnel-shaped filter (21); the second inner scraper (210) and the second outer scraper (212) are in contact with the inner and outer walls of the second funnel-shaped filter (22); and the third inner scraper (213) is in contact with the inner wall of the third funnel-shaped filter (23).

6. A multi-stage filtration device for mine water treatment according to claim 3, characterized in that: The sewage discharge pipe (15) is connected to the bottom of the tank body (11) in a conical shape, and an auger blade (214) is arranged on the central shaft (24) located at the sewage discharge pipe (15), and the central shaft (24) is rotatably connected to the tank body (11).

7. A multi-stage filtration device for mine water treatment according to claim 1, characterized in that: The mesh sizes of the first funnel-shaped filter screen (21), the second funnel-shaped filter screen (22) and the third funnel-shaped filter screen (23) gradually increase, the water outlet pipe (14) is tangent to the bottom of the tank body (11), and a support leg (13) is provided at the lower end of the tank body (11).

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