Self-cleaning and filtering device for coal slime in mine water

Abstract

The utility model discloses a mine water coal slime self-cleaning and filtering device, which relates to the technical field of mine water filtering and comprises a rack, a filtering box is mounted at the upper end of the rack, the side part of the upper end of the filtering box is communicated with a sewage inlet pipe, and the lower part of the filtering box is communicated with a drainage pipe. A filter screen with a low front part and a high rear part is fixedly mounted in the filter box, and the front side of the filter box is communicated with a coal slime discharge pipe above the filter screen; a scraping and pressing assembly is installed in the filtering box, the output end of a first hydraulic cylinder and the output end of a second hydraulic cylinder are connected with a first scraping plate piece and a second scraping plate piece correspondingly, and the first scraping plate piece and the second scraping plate piece are both located above the filtering net. According to the mine well water coal slime self-cleaning and filtering device, coal slime is scraped and extruded through the first scraping plate piece and the second scraping plate piece, the filtering effect is improved, meanwhile, the filtering net is washed through the washing assembly, the coal slime is prevented from blocking meshes of the filtering net, and the filtering capacity of the filtering net is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mine water filtration technology, specifically a mine water coal slime self-cleaning filtration device. Background Technology

[0002] In the coal mining process, mine water treatment is a crucial step. Mine water contains a large amount of coal slime particles. This coal slime not only pollutes water resources, but also has a certain calorific value, leading to resource waste if not recycled. Furthermore, it affects the subsequent reuse of mine water and compliance with discharge standards. Therefore, it is necessary to treat the coal slime in mine water.

[0003] Traditional filtration equipment is prone to rapid clogging of filter screens by coal sludge when treating mine water with high coal sludge content. Frequent manual cleaning of the filter screens is not only labor-intensive but also leads to long downtime of the filtration system, severely affecting the treatment efficiency of the mine water system and failing to meet the continuous treatment requirements of modern coal mine production. For example, in the patent entitled "A Coal Sludge Filter Press for Coal Washing" with authorization announcement number CN218653219U and authorization announcement date of 2023-03-21, a pushing mechanism is set up. The motor in the pushing mechanism causes the pushing block to move the coal sludge on the filter screen to the right, so that the coal sludge is discharged from the discharge gate, improving the discharge efficiency of the coal sludge filter press and cleaning the coal sludge, avoiding coal sludge residue on the filter screen and causing clogging. However, in the actual use of the above device, a large amount of coal sludge still remains on the surface of the filter screen and in the internal pores. Over time, the filtration performance continues to decline, leading to increased maintenance costs and shortened service life of the equipment.

[0004] Therefore, we propose a mine water coal slurry self-cleaning filtration device to solve the problems mentioned above. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model:

[0006] The purpose of this invention is to provide a mine water and coal slurry self-cleaning filtration device to solve the problems currently found in the market as described in the background.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, this utility model provides the following technical solution: a mine water coal sludge self-cleaning filtration device, comprising a frame, a filter box installed at the upper end of the frame, a sludge inlet pipe connected to the upper side of the filter box, and a drain pipe connected to the lower part of the filter box, a filter screen with a front lower and rear higher shape fixedly installed inside the filter box, and a coal sludge discharge pipe connected above the filter screen on the front side of the filter box.

[0009] The inside of the filter box is provided with a scraping and pressing assembly, which comprises first and second hydraulic cylinders mounted on the two sides of the inner wall of the filter box, the output ends of the first and second hydraulic cylinders are connected with first and second scraper members respectively, the first and second scraper members are located above the filter screen, the first and second scraper members scrape and press the slime on the filter screen by moving on the filter screen, a flushing assembly is mounted below the filter screen, and the flushing assembly sprays water to the filter screen.

[0010] Further, the first scraper member comprises a plurality of scraper members I, a plurality of connecting rods I are fixedly connected between the plurality of scraper members I, the second scraper member comprises a plurality of scraper members II, a plurality of connecting rods II are fixedly connected between the plurality of scraper members II, the plurality of scraper members I and the plurality of scraper members II are arranged in an interlaced manner, the connecting rod I and the scraper member II form a sliding fit structure, and the connecting rod II and the scraper member I form a sliding fit structure.

[0011] Through the above technical scheme, the scraper member I and the scraper member II can press the slime on the filter screen during relative movement.

[0012] Further, the lower end surfaces of the scraper member I and the scraper member II are in sliding fit with the upper end surface of the filter screen.

[0013] Through the above technical scheme, the scraper member I and the scraper member II can scrape the filter screen during sliding.

[0014] Further, the flushing assembly comprises a threaded rod mounted in the inside of the filter box through a bearing, a flushing pipe member is threadedly sleeved on the outer side of the threaded rod, the flushing pipe member comprises a flushing pipe body, a moving block is fixedly connected to the middle portion of the flushing pipe body, sliding blocks are fixedly connected to the two ends of the flushing pipe body, a flushing opening is formed in the side of the flushing pipe body close to the filter screen, the moving block is threadedly connected with the threaded rod, and the sliding blocks are in sliding fit with the filter box.

[0015] Through the above technical scheme, the threaded rod can drive the flushing pipe body to move after being rotated, so as to flush the filter screen.

[0016] Further, the central axis of the threaded rod is parallel to the symmetry axis of the filter screen.

[0017] Through the above technical scheme, the flushing effect of the filter screen is improved.

[0018] Further, the flushing pipe body is connected with the water outlet of the water pump through a hose.

[0019] Through the above technical scheme, the water can be flushed out from the flushing opening of the flushing pipe body after the water pump is started.

[0020] 3. Beneficial effects:

[0021] Compared with the prior art, the utility model discloses mine water coal slime self -cleaning filter device, through first scraper and second scraper to coal slime are scraped extrusion, improve the filtering effect, and through the flushing component to the filter screen is washed, avoid coal slime to block filter screen mesh, guarantee the filtering capacity of filter screen, its specific content is as follows:

[0022] Mine water coal slime mixture liquid passes into the filter box through the pollution inlet pipe, under the gravity, the water liquid in the mixture liquid is discharged through the drain pipe, and the coal slime is intercepted above the filter screen, when needing to clean the coal slime on the filter screen, first scraper and second scraper realize the relative movement on the filter screen through first hydraulic cylinder and second hydraulic cylinder, and the scraper one and the scraper two extrude the coal slime on the filter screen in the relative movement process, further promote the coal slime drainage, improve the water recovery efficiency to a certain extent, and the coal slime on the filter screen is scraped, prevents the coal slime from accumulating on the filter screen, improves the filtering effect and coal slime processing capacity.

[0023] Start the motor of the threaded rod end portion and the water pump connected with the flushing pipe piece, the water pump sends water to the flushing pipe body through the hose, and the motor drives the threaded rod to rotate, when the threaded rod rotates, the flushing pipe piece moves by the adhesion between the sliding block and the filter box, so that the flushing port on the flushing pipe body sprays water to the filter screen, and the filter screen is washed, and the coal slime remaining in the filter screen mesh is further cleaned, guaranteeing the filtering performance of the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the whole structure schematic view of the utility model;

[0025] Figure 2 It is the internal structure schematic view of the filter box of the utility model;

[0026] Figure 3 It is another view structure schematic view of the internal structure of the filter box of the utility model;

[0027] Figure 4 It is the side view three-dimensional structure schematic view of the scraping assembly of the utility model;

[0028] Figure 5 It is the structure schematic view of first scraper of the utility model;

[0029] Figure 6 It is the structure schematic view of second scraper of the utility model;

[0030] Figure 7 It is the structure schematic view of flushing pipe piece of the utility model.

[0031] In the figure: 1, rack; 2, filter box; 3, sewage inlet pipe; 4, drain pipe; 5, filter screen; 6, coal slurry discharge pipe; 7, scraping assembly; 71, first scraper; 711, scraper one; 712, connecting rod one; 72, second scraper; 721, scraper two; 722, connecting rod two; 73, first hydraulic cylinder; 74, second hydraulic cylinder; 8, flushing assembly; 81, threaded rod; 82, flushing pipe; 821, flushing pipe body; 822, moving block; 823, sliding block; 824, flushing port. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0035] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. EMBODIMENT

[0036] Please refer to Figures 1-7The utility model provides a kind of self-cleaning filter device of coal slime of mine water, including rack 1, the upper end of rack 1 is equipped with filter box 2, and the upper end side of filter box 2 is connected with dirty inlet pipe 3, and the lower part of filter box 2 is connected with drain pipe 4, the inside of filter box 2 is fixedly installed with the filter screen 5 of front low rear high, and the front side of filter box 2 is connected with coal slime discharge pipe 6 above filter screen 5;Scraping assembly 7 is installed in the inside of filter box 2, and scraping assembly 7 includes first hydraulic cylinder 73 and second hydraulic cylinder 74 installed on the both sides of the inner wall of filter box 2, and the output end of first hydraulic cylinder 73 and second hydraulic cylinder 74 is connected with first scraper 71 and second scraper 72 respectively, and first scraper 71 and second scraper 72 are all located above filter screen 5, and first scraper 71 and second scraper 72 are moved on filter screen 5 to scrape and extrude coal slime, and flushing assembly 8 is installed below filter screen 5, and flushing assembly 8 sprays water to filter screen 5;First scraper 71 includes a plurality of scraper one 711, and a plurality of connecting rods one 712 are fixedly connected between a plurality of scraper one 711, and second scraper 72 includes a plurality of scraper two 721, and a plurality of connecting rods two 722 are fixedly connected between a plurality of scraper two 721, a plurality of scraper one 711 and a plurality of scraper two 721 are staggered and arranged, and connecting rod one 712 and scraper two 721 form a sliding structure, and connecting rod two 722 and scraper one 711 form a sliding structure;The lower end surface of scraper one 711 and scraper two 721 is attached to the upper end surface of filter screen 5;

[0037] Mine water coal slime mixture enters filter box 2 through dirty inlet pipe 3, and under the action of gravity, water in the mixture is filtered through filter screen 5 and discharged through drain pipe 4, and coal slime is intercepted above filter screen 5, when it is necessary to clean the coal slime on filter screen 5, first scraper 71 and second scraper 72 are relatively moved on filter screen 5 by first hydraulic cylinder 73 and second hydraulic cylinder 74, and scraper one 711 and scraper two 721 extrude the coal slime on filter screen 5 during relative movement, further promote the coal slime to drain, improve the water recovery efficiency to some extent, and scrape the coal slime on filter screen 5 to prevent the coal slime from accumulating on filter screen 5, improve the filtering effect and coal slime processing capacity;

[0038] Flushing assembly 8 includes threaded rod 81 installed in the inside of filter box 2 through bearing, and flushing pipe 82 is threadedly sleeved on the outside of threaded rod 81, flushing pipe 82 includes flushing pipe body 821, moving block 822 is fixed in the middle of flushing pipe body 821, sliding block 823 is fixed at both ends of flushing pipe body 821, flushing port 824 is formed in the side of flushing pipe body 821 close to filter screen 5, moving block 822 is threadedly connected with threaded rod 81, and sliding block 823 and filter box 2 form a sliding structure;The central axis of threaded rod 81 is parallel to the symmetry axis of filter screen 5;Flushing pipe body 821 is connected with the water outlet of water pump through hose.

[0039] The motor at the end of the threaded rod 81 and the water pump connected to the flushing pipe fitting 82 are started. The water pump delivers water to the flushing pipe body 821 through the hose, while the motor drives the threaded rod 81 to rotate. When the threaded rod 81 rotates, the flushing pipe fitting 82 moves by utilizing the contact action between the slider 823 and the filter box 2, thereby spraying water onto the filter screen 5 through the flushing port 824 on the flushing pipe body 821 to flush the filter screen 5 and further clean the coal sludge remaining in the mesh of the filter screen 5, ensuring the filtration performance of the filter screen 5.

[0040] Working principle: When using this mine water and coal slurry self-cleaning filter device, if... Figures 1-7 As shown, the coal slurry mixture from the mine enters the filter box 2 through the inlet pipe 3. Under the action of gravity, the water in the mixture passes through the filter screen 5 and is discharged through the drain pipe 4, while the coal slurry is intercepted above the filter screen 5. Then, the first hydraulic cylinder 73 and the second hydraulic cylinder 74 are activated, driving the scraper 1 711 and scraper 2 721 to move relative to each other, squeezing the coal slurry on the filter screen 5, further promoting the drainage of the coal slurry, which improves the water recovery efficiency to a certain extent. At the same time, scraping the coal slurry on the filter screen 5 prevents the coal slurry from accumulating on the filter screen 5, improving the filtration effect and coal slurry treatment capacity. When the motor at the end of the threaded rod 81 and the water pump connected to the flushing pipe fitting 82 are both started, the water pump delivers water to the flushing pipe body 821 through the hose, and the motor drives the flushing pipe body 821 to move. The flushing pipe body 821 can then spray water onto the filter screen 5 through the flushing port 824 to flush the filter screen 5, further cleaning the coal slurry remaining in the mesh of the filter screen 5, ensuring the filtration performance of the filter screen 5, avoiding clogging, and ensuring subsequent mine water treatment.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-cleaning filtration device for coal slurry in mine water, characterized in that: The utility model provides a coal slurry filter, which comprises a rack (1), a filter box (2) is installed at the upper end of the rack (1), a sewage inlet pipe (3) is connected to the upper end side of the filter box (2), a water outlet pipe (4) is connected to the lower part of the filter box (2), a filter screen (5) in the shape of a front low and a rear high is fixedly installed in the filter box (2), and a coal slurry discharge pipe (6) is connected to the front side of the filter box (2) above the filter screen (5). A scraping and pressing assembly (7) is installed in the filter box (2), the scraping and pressing assembly (7) comprises first and second hydraulic cylinders (73 and 74) installed on the inner walls of the filter box (2), the output ends of the first and second hydraulic cylinders (73 and 74) are connected with first and second scraper members (71 and 72) respectively, the first and second scraper members (71 and 72) are located above the filter screen (5), the first and second scraper members (71 and 72) scrape and press the coal slurry by moving on the filter screen (5), and a flushing assembly (8) is installed below the filter screen (5) and sprays water on the filter screen (5).

2. The mine water and coal slime self-cleaning filter device according to claim 1, characterized in that: The first scraper member (71) comprises a plurality of scraper members (711), a plurality of connecting rods (712) are fixedly connected between the plurality of scraper members (711), the second scraper member (72) comprises a plurality of scraper members (721), a plurality of connecting rods (722) are fixedly connected between the plurality of scraper members (721), the plurality of scraper members (711) and the plurality of scraper members (721) are arranged in an interlaced manner, the connecting rod (712) and the scraper member (721) form a sliding fit structure, and the connecting rod (722) and the scraper member (711) form a sliding fit structure.

3. The mine water and coal slime self-cleaning filter device according to claim 2, characterized in that: The lower end surfaces of the scraper members (711 and 721) are in sliding fit with the upper end surface of the filter screen (5).

4. The mine water and coal slime self-cleaning filter device according to claim 1, characterized in that: The flushing assembly (8) comprises a threaded rod (81) installed in the filter box (2) through a bearing, a flushing pipe member (82) is threadedly sleeved on the outer side of the threaded rod (81), the flushing pipe member (82) comprises a flushing pipe body (821), a moving block (822) is fixed to the middle part of the flushing pipe body (821), sliding blocks (823) are fixed to the two ends of the flushing pipe body (821), a flushing opening (824) is formed in the side of the flushing pipe body (821) close to the filter screen (5), the moving block (822) is in threaded connection with the threaded rod (81), and the sliding blocks (823) are in sliding fit with the filter box (2).

5. The mine water and coal slime self-cleaning filter device according to claim 4, characterized in that: The central axis of the threaded rod (81) is parallel to the symmetry axis of the filter screen (5).

6. The mine water and coal slime self-cleaning filter device according to claim 4, characterized in that: The flushing pipe body (821) is connected with the water outlet of a water pump through a hose.

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