Filtering device for treating coal-containing wastewater

Abstract

The utility model discloses a filtering device for coal-containing wastewater treatment, which comprises a filtering tank, a slag discharge hole formed in the outer wall of the bottom end of the filtering tank, a water inlet hole formed in the outer wall of one side of the filtering tank close to the top end, a water inlet buffer mechanism arranged at the water inlet hole, a water discharge hole formed in the outer wall of one side of the filtering tank, and a top sealing mechanism arranged at the top end of the filtering tank. The positions, close to the bottom, of the inner walls of the two sides of the filtering tank are fixedly connected with inverted-U-shaped separating and filtering plates, the two side faces of each separating and filtering plate are zigzag faces, the two sides of each separating and filtering plate are provided with mounting holes, and the interiors of the mounting holes are fixedly connected with filtering nets. The utility model relates to a filtering device for treating coal-containing wastewater, which can be used for filtering coal-containing solid impurities in the wastewater, improving the settling efficiency and improving the practicability of the device.

Description

Technical Field

[0001] This utility model belongs to the field of coal-containing wastewater treatment technology, and specifically relates to a filtration device for treating coal-containing wastewater. Background Technology

[0002] Wastewater treatment utilizes physical, chemical, and biological methods to purify wastewater, reduce pollution, and ultimately achieve wastewater recycling and reuse, thus fully utilizing water resources. During the operation of some coal-fired power plants, coal-containing wastewater is generated. This wastewater contains a large amount of fine coal solids as solid impurities. These coal solids can be recovered through filtration and other processes. The filtration process requires a filtration device specifically designed for coal-containing wastewater treatment.

[0003] Existing filtration devices for treating coal-containing wastewater often have the following shortcomings during use: the process is relatively simple, and the force of the wastewater entering the device is relatively large, which easily causes the settled solid particles in the device to be resuspended, thus failing to settle well and reducing the efficiency and effectiveness of filtration. Utility Model Content

[0004] In view of this, the present invention aims to provide a filtration device for treating coal-containing wastewater, so as to solve or alleviate the technical problem in the prior art that the large impact force when wastewater enters the device easily causes the settled solid particles in the device to be resuspended, thus preventing them from settling well.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A filtration device for treating coal-containing wastewater includes a filter tank. The bottom outer wall of the filter tank has a slag discharge hole, and one side outer wall of the filter tank has a water inlet near the top. A water inlet buffer mechanism is provided at the water inlet. One side outer wall of the filter tank has a drain hole, and the top of the filter tank has a sealing mechanism. Inverted U-shaped filter plates are fixedly connected to the inner walls of both sides of the filter tank near the bottom. Both sides of the filter plates are folded surfaces, and both sides of the filter plates have mounting holes, in which filter screens are fixedly connected.

[0007] A further improvement of this invention is that the filter can is bucket-shaped and has an opening at the top.

[0008] A further improvement of this utility model is that a slag discharge pipe is fixedly connected inside the slag discharge hole, a water inlet pipe is fixedly connected inside the water inlet hole, and a drain pipe is fixedly connected inside the drain hole.

[0009] A further improvement of this utility model is that a mud discharge valve is sleeved on the outer wall of the slag discharge pipe.

[0010] A further improvement of this utility model is that the water inlet buffer mechanism includes a U-shaped buffer plate, and end blocks are welded to the outer wall of the top of the buffer plate near both sides. Rod holes are opened on the side walls of the two end blocks, and crossbars are inserted into the rod holes. One end of the two crossbars is welded to the inner wall of the filter tank.

[0011] A further improvement of this utility model is that springs are sleeved on the outer walls of both crossbars, and end caps are welded to the ends of the crossbars away from the end blocks, with the springs located between the end blocks and the end caps.

[0012] A further improvement of this utility model is that U-shaped side plates are welded to both outer walls of the buffer plate, and a fixed plate is welded to the same outer wall near the end of the opposite side of the two side plates. A round hole for inserting a water inlet pipe is opened in the middle of the outer wall of one side of the fixed plate.

[0013] A further improvement of this utility model is that the sealing mechanism includes a top cover plate, which covers the top of the filter tank. An observation hole is opened on the top of the top cover plate, and transparent plates are connected to the four inner walls of the observation hole.

[0014] A further improvement of this utility model is that the bottom outer wall of the top cover plate is hinged to the side wall of the filter tank near the top via a hinge.

[0015] A further improvement of this utility model is that two positioning clips are welded to one side of the outer wall of the movable end of the top cover plate. The bottom end of each positioning clip has a groove, and a screw is inserted into each of the two grooves. One end of each screw is welded to the side wall of the filter tank, and the other end of each screw is threaded with a screw cap.

[0016] This utility model has at least the following beneficial technical effects:

[0017] This utility model provides a filtration device for treating coal-containing wastewater. By setting up a filter plate and a filter screen, during the filtration process, the coal-containing wastewater enters the filter tank from the inlet pipe. The filter screen in the filter tank can filter the coal-containing solid impurities in the wastewater twice. Moreover, the filter plate and the filter screen divide the space inside the filter tank into multiple spaces, which reduces the diffusion force when the sewage enters, thereby reducing the impact of the inlet water impact force on the settling of coal-containing solid impurities.

[0018] Furthermore, by setting up an inlet buffer mechanism, this utility model can buffer and limit the flow of incoming wastewater, thereby greatly reducing the re-suspension of settled impurities and further reducing the impact on impurity settling.

[0019] Furthermore, this utility model incorporates a capping mechanism that seals the top of the filter tank. The transparent panel allows staff to easily observe the settling inside the filter tank, and the top cover can be opened, facilitating subsequent cleaning of the filter tank. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an overall structural diagram of the present invention;

[0022] Figure 2 This is a partial cross-sectional view of the present invention;

[0023] Figure 3 This is a structural diagram of the water inlet buffer mechanism of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Support column; 2. Filter tank; 3. Positioning clip; 4. Top cover plate; 5. Transparent plate; 6. Drain pipe; 7. Sludge discharge valve; 8. Slag discharge pipe; 9. Buffer plate; 10. Slag discharge pipe; 11. Spring; 12. Crossbar; 13. Water inlet buffer mechanism; 14. Side plate; 15. Fixing plate; 16. End; 17. End block; 18. Filter screen. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] Example 1

[0033] like Figure 1-3 As shown, this embodiment provides a filtration device for treating coal-containing wastewater, including a filter tank 2. The bottom outer wall of the filter tank 2 has a slag discharge hole, and a water inlet hole is provided on one side outer wall of the filter tank 2 near the top. A water inlet buffer mechanism 13 is provided at the water inlet hole. A drain hole is provided on one side outer wall of the filter tank 2. A sealing mechanism is provided at the top of the filter tank 2. An inverted U-shaped filter plate 10 is fixedly connected to the inner walls of both sides of the filter tank 2 near the bottom. Both sides of the filter plate 10 are folded surfaces, and both sides of the filter plate 10 have mounting holes. A filter screen 18 is fixedly connected in each mounting hole.

[0034] Example 2

[0035] like Figure 1-3As shown, this embodiment provides a filtration device for treating coal-containing wastewater, including a bucket-shaped filter tank 2. The top of the filter tank 2 is open, and a slag discharge hole is opened on the outer wall of the bottom end of the filter tank 2. A slag discharge pipe 8 is welded into the slag discharge hole. A water inlet hole is opened on one side of the outer wall of the filter tank 2 near the top end. A water inlet pipe is welded into the water inlet hole, and a water inlet buffer mechanism 13 is provided at the water inlet hole. A drain hole is opened on one side of the outer wall of the filter tank 2. A drain pipe 6 is welded into the drain hole. A top sealing mechanism is provided at the top end of the filter tank 2. An inverted U-shaped filter plate 10 is welded on both sides of the inner wall of the filter tank 2 near the bottom end. Both sides of the filter plate 10 are folded surfaces. Mounting holes are opened on both sides of the filter plate 10, and filter screens 18 are welded into the mounting holes. The filter plates 10 are located on both sides of the outer wall of the filter tank 2 near the bottom end. Each tank is welded with multiple support columns 1. During the filtration process, coal-containing wastewater enters the filter tank 2 through the inlet pipe. The filter screen 18 inside the filter tank 2 can filter the coal-containing solid impurities in the wastewater twice. The filter plate 10 and the filter screen 18 divide the space inside the filter tank 2 into multiple spaces, which reduces the diffusion force when the wastewater enters, thereby reducing the impact of the inlet water impact on the settling of coal-containing solid impurities. The inlet buffer mechanism 13 can buffer and limit the flow of the incoming wastewater, thereby greatly reducing the re-suspension of settled impurities and further reducing the impact on the settling of impurities. The sealing mechanism seals the top of the filter tank 2. The filtered wastewater is discharged from the drain pipe 6. The staff can periodically clean the settled impurities in the filter tank 2 through the slag discharge pipe 8.

[0036] In this embodiment, the water inlet buffer mechanism 13 includes a U-shaped buffer plate 9. The top outer wall of the buffer plate 9 is welded with end blocks 17 near both sides. The side walls of the two end blocks 17 are opened with rod holes, and crossbars 12 are inserted into the rod holes. One end of the two crossbars 12 is welded to the inner wall of the filter tank 2. When sewage enters the filter tank 2, the sewage enters the space between the buffer plate 9 and the filter tank 2. This space is small, which greatly reduces the diffusion of the sewage.

[0037] In this embodiment, springs 11 are sleeved on the outer walls of both crossbars 12. End caps 16 are welded to the ends of the crossbars 12 away from the end blocks 17. The springs 11 are located between the end blocks 17 and the end caps 16. When sewage impacts the buffer plate 9, it compresses the springs 11. The deformation of the springs 11 consumes the impact force of the sewage entering, which is beneficial to the sedimentation of solid impurities.

[0038] In this embodiment, U-shaped side plates 14 are welded to both outer walls of the buffer plate 9. A fixed plate 15 is welded to the outer wall of the opposite side of the two side plates 14 near the end. A round hole is opened in the middle of the outer wall of one side of the fixed plate 15. The end of the water inlet pipe passes through the round hole. When sewage enters, it will impact the buffer plate 9 and compress the spring 11. The buffer plate 9 will then swing back and forth under the action of the restoring force of the spring 11. The water inlet pipe passes through the fixed plate 15, and the fixed plate 15 is fixedly connected to the buffer plate 9. Therefore, this provides guidance for the back and forth swing of the buffer plate 9, and avoids its position displacement due to the swing, which will affect the effectiveness of the buffer.

[0039] In this embodiment, a mud discharge valve 7 is sleeved on the outer wall of the slag discharge pipe 8. When discharging impurities later, the mud discharge valve 7 can be opened, and the solid impurities at the bottom of the filter tank 2 can be discharged from the slag discharge pipe 8.

[0040] In this embodiment, the sealing mechanism includes a top cover plate 4, which covers the top of the filter tank 2. The top of the top cover plate 4 has an observation hole, and transparent plates 5 are connected to the four inner walls of the observation hole. The sealing mechanism seals the top of the filter tank 2, and the transparent plates 5 facilitate the staff to observe the sedimentation inside the filter tank 2.

[0041] In this embodiment, the bottom outer wall of the top cover plate 4 is hinged to the side wall of the filter tank 2 near the top via a hinge, so the top cover plate 4 can be opened, which facilitates the cleaning of the filter tank 2 by the staff later.

[0042] In this embodiment, two positioning clips 3 are welded to one side of the outer wall of the movable end of the top cover plate 4. The bottom end of each positioning clip 3 has a groove, and a screw is inserted into each of the two grooves. One end of each screw is welded to the side wall of the filter tank 2, and the other end of each screw is threaded with a nut. When opening or closing the top cover plate 4, the nut can be unscrewed or tightened, thereby ensuring the airtightness of the top cover plate 4 sealing the top of the filter tank 2.

[0043] The working process of this utility model is described below:

[0044] In this invention, during the filtration process, coal-containing wastewater enters the filter tank 2 through the inlet pipe. The filter screen 18 inside the filter tank 2 can filter the coal-containing solid impurities in the wastewater twice. The filter plate 10 and the filter screen 18 divide the space inside the filter tank 2 into multiple spaces, reducing the diffusion force when the wastewater enters, thereby reducing the impact of the inlet water's impact on the settling of coal-containing solid impurities. Furthermore, the inlet buffer mechanism 13 can buffer and limit the flow of the incoming wastewater, greatly reducing the re-suspension of settled impurities and further reducing the impact on impurity settling. Specifically, when the wastewater enters the filter tank 2, it enters the space between the buffer plate 9 and the filter tank 2. This space is relatively small, greatly reducing the amount of wastewater entering. The diffusion of wastewater impacts the buffer plate 9 and compresses the spring 11. The deformation of the spring 11 consumes the impact force of the wastewater entering, which is conducive to the settling of solid impurities. When the wastewater enters, it will impact the buffer plate 9 and compress the spring 11. The buffer plate 9 will then sway back and forth under the action of the restoring force of the spring 11. The inlet pipe passes through the fixed plate 15, which is fixedly connected to the buffer plate 9. Therefore, this provides guidance for the back and forth swaying of the buffer plate 9, preventing it from swaying and causing positional displacement that affects the effectiveness of the buffer. The sealing mechanism seals the top of the filter tank 2. The filtered wastewater is discharged from the drain pipe 6. When discharging impurities later, the sludge discharge valve 7 can be opened, and the solid impurities at the bottom of the filter tank 2 can be discharged from the sludge discharge pipe 8.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A filtration device for treating coal-containing wastewater, characterized in that, The filter includes a filter tank (2), with a slag discharge hole on the bottom outer wall of the filter tank (2), a water inlet hole on one side outer wall near the top, a water inlet buffer mechanism (13) at the water inlet hole, a drain hole on one side outer wall of the filter tank (2), a sealing mechanism at the top of the filter tank (2), and inverted U-shaped filter plates (10) fixedly connected to the inner walls on both sides of the filter tank (2) near the bottom. Both sides of the filter plate (10) are folded surfaces, and both sides of the filter plate (10) have mounting holes, and filter screens (18) are fixedly connected in the mounting holes.

2. The filtration device for treating coal-containing wastewater according to claim 1, characterized in that, The filter canister (2) is bucket-shaped and has an opening at the top.

3. The filtration device for treating coal-containing wastewater according to claim 1, characterized in that, A slag discharge pipe (8) is fixedly connected inside the slag discharge hole, a water inlet pipe is fixedly connected inside the water inlet hole, and a drain pipe (6) is fixedly connected inside the drain hole.

4. A filtration device for treating coal-containing wastewater according to claim 3, characterized in that, The outer wall of the slag discharge pipe (8) is fitted with a mud discharge valve (7).

5. A filtration device for treating coal-containing wastewater according to claim 1, characterized in that, The water inlet buffer mechanism (13) includes a U-shaped buffer plate (9). The top outer wall of the buffer plate (9) is welded with end blocks (17) near both sides. The side walls of the two end blocks (17) are opened with rod holes, and crossbars (12) are inserted into the rod holes. One end of the two crossbars (12) is welded to the inner wall of the filter tank (2).

6. A filtration device for treating coal-containing wastewater according to claim 5, characterized in that, Springs (11) are fitted onto the outer walls of both crossbars (12). End caps (16) are welded to the end of each crossbar (12) away from the end block (17). The springs (11) are located between the end block (17) and the end caps (16).

7. A filtration device for treating coal-containing wastewater according to claim 5, characterized in that, The buffer plate (9) has U-shaped side plates (14) welded on both outer walls. The two side plates (14) have the same fixing plate (15) welded on the outer wall near the end. The fixing plate (15) has a round hole for inserting the water inlet pipe in the middle of the outer wall.

8. A filtration device for treating coal-containing wastewater according to claim 1, characterized in that, The capping mechanism includes a top cover plate (4), which covers the top of the filter tank (2). An observation hole is opened on the top of the top cover plate (4), and transparent plates (5) are connected to the four inner walls of the observation hole.

9. A filtration device for treating coal-containing wastewater according to claim 8, characterized in that, The bottom outer wall of the top cover (4) is hinged to the side wall of the filter tank (2) near the top via a hinge.

10. A filtration device for treating coal-containing wastewater according to claim 8, characterized in that, Two positioning clips (3) are welded to one side of the movable end of the top cover plate (4). The bottom of each positioning clip (3) has a groove, and a screw is inserted into each groove. One end of each screw is welded to the side wall of the filter tank (2), and the other end of each screw is threaded with a screw cap.

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