Multi-layer filtering device for heavy metal sewage

Abstract

The utility model discloses a multi-layer filtering device for heavy metal sewage, which belongs to the technical field of sewage treatment and comprises a filtering tank, a settling tank is fixedly connected onto the side wall of the filtering tank, a quick filtering treatment mechanism is arranged in the middle of the filtering tank, and a drainage filtering mechanism is arranged between the filtering tank and the settling tank. According to the sewage treatment device, the rapid filtering treatment mechanism is arranged, in the process that sewage is conveyed to the filtering tank, the driving impeller can drive the rotating shaft to rotate through the impact force of the sewage, so that the sewage can be rapidly filtered, and the sewage can be rapidly filtered. A stirring impeller is used for stirring the sewage in the filtering tank, so that the time that the sewage passes through the metal net cylinder can be shortened, and the efficiency of filtering the heavy metals in the sewage is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a heavy metal sewage multi-layer filtering device. Background Art

[0002] Some existing filter tanks use filter screens to filter sewage. Impurities in the sewage are easy to clog the front filter screen, which requires operators to clean it, increasing the workload of operators and reducing the performance of the back filter screen.

[0003] The existing patent (Announcement No.: CN216878135U) is a sewage filter that can screen out heavy metals at multiple stages. This utility model can lift up multiple mesh plates after filtering for a period of time, making it convenient for operators to clean them, thereby improving the work efficiency of operators. The mesh size of the mesh plates decreases from left to right, thereby maximizing the utilization rate of each mesh plate and enabling quick and convenient replacement of the mesh plates, thereby improving the convenience of the operator's work.

[0004] In view of the above problems, existing patents have provided solutions, but there is a problem that the sewage cannot pass through the filter quickly to accelerate the rapid filtration and treatment of heavy metals in the sewage. At the same time, there is a problem that the heavy metals in the sewage cannot be filtered in multiple layers and the heavy metal particles at the filtration point cannot be cleaned.

[0005] Therefore, a heavy metal wastewater multi-layer filtration device is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a heavy metal sewage multi-layer filtering device, which can solve the problem that the existing sewage filter cannot make the sewage pass through the filter quickly to accelerate the rapid filtering treatment of heavy metals in the sewage, and at the same time, it cannot perform multi-layer filtering of heavy metals in the sewage and clean up the heavy metal particles at the filtering point.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heavy metal wastewater multi-layer filtration device, comprising a filter tank, a sedimentation box is fixedly connected to the side wall of the filter tank, a rapid filtration processing mechanism is arranged in the middle of the filter tank, a drainage filtration mechanism is arranged between the filter tank and the sedimentation box, a sedimentation filtration mechanism is arranged inside the sedimentation box, and a filtration cleaning mechanism is arranged at the bottom of the filter tank;

[0008] The rapid filtering and processing mechanism includes an inspection cover, a support ring, a metal mesh cylinder, a driving box, a liquid inlet pipe, a liquid return pipe, a rotating shaft, a driving impeller and a stirring impeller. The inspection cover is bolted to the bottom of the filter tank, the support ring is fixedly connected to the inner wall of the filter tank, the metal mesh cylinder is arranged between the support ring and the inspection cover, the driving box is fixedly connected to the top of the filter tank, the liquid inlet pipe is arranged on the side wall of the driving box, the liquid return pipe is arranged between the driving box and the filter tank, the rotating shaft bearing is connected to the filter tank and the middle of the driving box, the driving impeller is fixedly connected to the side wall of the rotating shaft and is located in the middle of the driving box, and the two stirring impellers are fixedly connected to the side wall of the rotating shaft and are located in the middle of the filter tank.

[0009] Preferably, the drainage and filtering mechanism comprises a drainage pipe, a connecting cover, a filter cartridge, a bottom cover, a filter screen cartridge and a downpipe, wherein the drainage pipe is fixedly connected to the bottom of the inspection cover, the connecting cover is movably arranged at the bottom of the drainage pipe, the filter cartridge is threadedly connected to the bottom of the connecting cover, the bottom cover is threadedly connected to the bottom of the filter cartridge, the filter screen cartridge is arranged between the filter cartridge and the bottom cover, the downpipe is through-arranged on the side wall of the filter cartridge, and the other end of the downpipe is through-fitted with the sedimentation box.

[0010] Preferably, the sedimentation and filtration mechanism comprises a partition, a lower liquid cover and a filter mesh plate, the partition is fixedly connected to the inner wall of the sedimentation box, the lower liquid cover is arranged on the top of the partition, and a plurality of the filter mesh plates are arranged on the side wall of the lower liquid cover.

[0011] Preferably, the filter cleaning mechanism includes a cleaning port, a cleaning cover, a slag discharge port and a control valve, the cleaning port is arranged at the bottom of the inspection cover, the cleaning cover is threadedly connected to the bottom of the cleaning port, the slag discharge port is arranged in the middle of the cleaning cover, and the control valve is arranged in the middle of the slag discharge port.

[0012] Preferably, a guide ring is fixedly connected to the inner wall of the filter tank, and the guide ring is located above the support ring.

[0013] Preferably, a limit ring is fixedly connected to the top surface of the inspection cover, and the side wall of the limit ring is inclined.

[0014] Preferably, a metal mesh disk is provided on the top surface of the inspection cover, and the metal mesh disk is located above the cleaning port.

[0015] Preferably, a cleaning inspection plate is provided on the side wall of the sedimentation box.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The present application is provided with a rapid filtering treatment mechanism. During the process of conveying sewage to the filter tank, the driving impeller can drive the rotating shaft to rotate through the impact force of the sewage, and the stirring impeller can stir the sewage inside the filter tank, which can speed up the time for sewage to pass through the metal mesh cylinder and improve the efficiency of filtering and treating heavy metals in sewage.

[0018] 2. The present application is provided with a drainage filtration mechanism, a sedimentation filtration mechanism and a filtration and cleaning mechanism. This process can re-filter the sewage after rapid filtration for multiple times and multiple layers, and at the same time can facilitate the cleaning of the filtered heavy metal impurities, thereby improving the filtration effect and filtration efficiency of the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the overall structural view of the utility model;

[0021] Figure 2 It is a left view of the utility model;

[0022] Figure 3 For the utility model Figure 2 The three-dimensional cross-section view at AA in the middle;

[0023] Figure 4 This is a structural view of the sedimentation and filtration mechanism of the utility model;

[0024] Figure 5 This is a structural view of the rapid filtering and processing mechanism of the utility model;

[0025] Figure 6 This is a structural view of the drainage and filtering mechanism of the utility model.

[0026] Description of reference numerals:

[0027] 1. Filter tank; 2. Sedimentation box; 3. Rapid filtration and treatment mechanism; 4. Drainage filtration mechanism; 5. Sedimentation filtration mechanism; 6. Filter cleaning mechanism; 31. Inspection cover; 32. Support ring; 33. Metal mesh cylinder; 34. Drive box; 35. Liquid inlet pipe; 36. Liquid return pipe; 37. Rotating shaft; 38. Driving impeller; 39. Agitating impeller; 41. Drain pipe; 42. Connecting cover; 43. Filter cylinder; 44. Bottom cover; 45. Filter cylinder; 46. Lower liquid pipe; 51. Partition; 52. Lower liquid cover; 53. Filter screen plate; 61. Cleaning port; 62. Cleaning cover; 63. Slag discharge port; 64. Control valve; 7. Guide ring; 8. Limiting ring; 9. Metal mesh disk; 10. Cleaning and inspection plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 6 , the utility model provides a technical solution:

[0030] A heavy metal wastewater multilayer filtering device comprises a filter tank 1, a sedimentation box 2 is fixedly connected to the side wall of the filter tank 1, a rapid filtering and processing mechanism 3 is arranged in the middle of the filter tank 1, a drainage filtering mechanism 4 is arranged between the filter tank 1 and the sedimentation box 2, a sedimentation filtering mechanism 5 is arranged inside the sedimentation box 2, and a filtering and cleaning mechanism 6 is arranged at the bottom of the filter tank 1;

[0031] The rapid filtering and processing mechanism 3 includes an inspection cover 31, a support ring 32, a metal mesh cylinder 33, a driving box 34, a liquid inlet pipe 35, a liquid return pipe 36, a rotating shaft 37, a driving impeller 38 and a stirring impeller 39. The inspection cover 31 is bolted to the bottom of the filter tank 1, the support ring 32 is fixedly connected to the inner wall of the filter tank 1, the metal mesh cylinder 33 is arranged between the support ring 32 and the inspection cover 31, the driving box 34 is fixedly connected to the top of the filter tank 1, the liquid inlet pipe 35 is arranged on the side wall of the driving box 34, the liquid return pipe 36 is arranged between the driving box 34 and the filter tank 1, the rotating shaft 37 bearing is connected to the filter tank 1 and the middle of the driving box 34, the driving impeller 38 is fixedly connected to the side wall of the rotating shaft 37 and is located in the middle of the driving box 34, and two stirring impellers 39 are fixedly connected to the side wall of the rotating shaft 37 and are located in the middle of the filter tank 1.

[0032] Specifically, Figure 6As shown, the drainage and filtering mechanism 4 comprises a drainage pipe 41, a connecting cover 42, a filter cartridge 43, a bottom cover 44, a filter screen cartridge 45 and a down pipe 46. The drainage pipe 41 is fixedly connected to the bottom of the inspection cover 31, the connecting cover 42 is movably arranged at the bottom of the drainage pipe 41, the filter cartridge 43 is threadedly connected to the bottom of the connecting cover 42, the bottom cover 44 is threadedly connected to the bottom of the filter cartridge 43, the filter screen cartridge 45 is arranged between the filter cartridge 43 and the bottom cover 44, and the down pipe 46 is through-arranged on the side wall of the filter cartridge 43, and the other end of the down pipe 46 is through-fitted with the sedimentation tank 2.

[0033] Specifically, Figure 4 As shown, the sedimentation and filtering mechanism 5 includes a partition 51, a lower liquid cover 52 and a filter mesh plate 53. The partition 51 is fixedly connected to the inner wall of the sedimentation box 2, the lower liquid cover 52 is arranged on the top of the partition 51, and multiple filter mesh plates 53 are arranged on the side wall of the lower liquid cover 52.

[0034] Specifically, Figure 5 As shown, a guide ring 7 is fixedly connected to the inner wall of the filter tank 1 , and the guide ring 7 is located above the support ring 32 .

[0035] Specifically, Figure 5 As shown, a limit ring 8 is fixedly connected to the top surface of the inspection cover 31, and the side wall of the limit ring 8 is inclined.

[0036] Specifically, Figure 4 As shown, a cleaning and repair plate 10 is provided on the side wall of the sedimentation box 2.

[0037] When in use, first, sewage enters the drive box 34 through the liquid inlet pipe 35, and the flow of sewage impacts and drives the driving impeller 38. The rotating driving impeller 38 drives the rotating shaft 37 to rotate, and the sewage enters the filter tank 1 through the return pipe 36. The guide ring 7 guides the sewage, the support ring 32 supports the metal mesh cylinder 33, and the stirring impeller 39 stirs the sewage, which can speed up the time for the sewage to pass through the metal mesh cylinder 33. The metal mesh cylinder 33 filters the medium and heavy metal particles in the sewage. The sewage after the initial filtration enters the interior of the filter cylinder 43 through the discharge pipe 41, and the filter cylinder 45 filters the sewage again, and then enters the sedimentation tank 2 through the lower liquid pipe 46. The sewage is precipitated between the partition 51 and the sedimentation tank 2. As the amount of sewage increases, the sewage passes through the lower liquid hood 52 and enters the other side of the partition 51. Multiple filter mesh plates 53 perform multi-layer filtration on the sewage again. By disassembling and cleaning the inspection plate 10, the metal inside the sedimentation tank 2 can be easily cleaned. In this way, during the process of conveying the sewage to the filter tank 1, the impact force of the sewage causes the driving impeller 38 to drive the rotating shaft 37 to rotate, and the stirring impeller 39 stirs the sewage inside the filter tank 1, which can speed up the time for the sewage to pass through the metal mesh cylinder 33, improve the efficiency of filtering the heavy metals in the sewage, and can perform multiple and multi-layer filtration again on the sewage after rapid filtration.

[0038] Specifically, Figure 5 As shown, the filter cleaning mechanism 6 includes a cleaning port 61, a cleaning cover 62, a slag discharge port 63 and a control valve 64. The cleaning port 61 is arranged at the bottom of the inspection cover 31, the cleaning cover 62 is threadedly connected to the bottom of the cleaning port 61, the slag discharge port 63 is arranged in the middle of the cleaning cover 62, and the control valve 64 is arranged in the middle of the slag discharge port 63.

[0039] Specifically, Figure 5 As shown, a metal mesh plate 9 is provided on the top surface of the inspection cover 31 , and the metal mesh plate 9 is located above the cleaning port 61 .

[0040] During use, after the filtration is completed, the metal particles filtered out by the metal mesh cylinder 33 enter the interior of the cleaning port 61. By opening the control valve 64, the mixture of metal particles and sewage can be discharged. By removing the cleaning cover 62 and the inspection cover 31, the metal mesh cylinder 33 and the cleaning port 61 can be inspected and cleaned.

[0041] By adopting the above technical solution, the problem that the existing sewage filter cannot allow the sewage to pass through the filter quickly to accelerate the rapid filtration and treatment of heavy metals in the sewage is solved, and the problem that the heavy metals in the sewage cannot be filtered in multiple layers and the heavy metal particles at the filtration point cannot be cleaned is solved.

[0042] Working principle: When the present application is in use, first, sewage enters the driving box 34 through the liquid inlet pipe 35, the flow of sewage impacts and drives the driving impeller 38, the rotating driving impeller 38 drives the rotating shaft 37 to rotate, and the sewage enters the filter tank 1 through the return liquid pipe 36, and the stirring impeller 39 stirs the sewage, which can speed up the time for the sewage to pass through the metal mesh cylinder 33, and the metal mesh cylinder 33 filters the medium and heavy metal particles in the sewage. After the initial filtration, the sewage enters the interior of the filter cylinder 43 through the discharge pipe 41, and the filter cylinder 45 filters the sewage again, and then enters the sedimentation tank 2 through the downpipe 46, and the sewage is precipitated between the partition plate 51 and the sedimentation tank 2 As the amount of sewage increases, the sewage passes through the lower liquid hood 52 and enters the other side of the partition 51. The multiple filter screens 53 perform multi-layer filtration on the sewage again. After the filtration is completed, the metal particles filtered out by the metal mesh cylinder 33 enter the interior of the cleaning port 61. The opening of the control valve 64 can facilitate the discharge of the mixture of metal particles and sewage. By disassembling the cleaning cover 62 and the inspection cover 31, the metal mesh cylinder 33 and the cleaning port 61 can be easily inspected and cleaned. In this way, the time for sewage to pass through the metal mesh cylinder 33 can be accelerated, the efficiency of filtering heavy metals in sewage is improved, and the sewage that has been quickly filtered can be re-filtered multiple times and in multiple layers.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A heavy metal wastewater multi-layer filtration device, comprising a filter tank (1), characterized in that: A sedimentation box (2) is fixedly connected to the side wall of the filter tank (1), a rapid filtering mechanism (3) is provided in the middle of the filter tank (1), a drainage filtering mechanism (4) is provided between the filter tank (1) and the sedimentation box (2), a sedimentation filtering mechanism (5) is provided inside the sedimentation box (2), and a filtering and cleaning mechanism (6) is provided at the bottom of the filter tank (1); The rapid filtering treatment mechanism (3) comprises an inspection cover (31), a support ring (32), a metal mesh cylinder (33), a drive box (34), a liquid inlet pipe (35), a liquid return pipe (36), a rotating shaft (37), a driving impeller (38) and an agitating impeller (39), wherein the inspection cover (31) is bolted to the bottom of the filter tank (1), the support ring (32) is fixedly connected to the inner wall of the filter tank (1), the metal mesh cylinder (33) is arranged between the support ring (32) and the inspection cover (31), and the drive box (34) is fixedly connected to the inner wall of the filter tank (1). The filter tank (1) is fixedly connected to the top of the filter tank (1), the liquid inlet pipe (35) is arranged on the side wall of the drive box (34), the liquid return pipe (36) is arranged between the drive box (34) and the filter tank (1), the rotating shaft (37) is bearing-connected to the filter tank (1) and the middle of the drive box (34), the driving impeller (38) is fixedly connected to the side wall of the rotating shaft (37) and is located in the middle of the drive box (34), and the two stirring impellers (39) are fixedly connected to the side wall of the rotating shaft (37) and are located in the middle of the filter tank (1).

2. A heavy metal wastewater multi-layer filtration device according to claim 1, characterized in that: The liquid discharge and filtering mechanism (4) comprises a liquid discharge pipe (41), a connecting cover (42), a filter cartridge (43), a bottom cover (44), a filter cartridge (45) and a liquid discharge pipe (46); the liquid discharge pipe (41) is fixedly connected to the bottom of the inspection cover (31); the connecting cover (42) is movably arranged at the bottom of the liquid discharge pipe (41); the filter cartridge (43) is threadedly connected to the bottom of the connecting cover (42); the bottom cover (44) is threadedly connected to the bottom of the filter cartridge (43); the filter cartridge (45) is arranged between the filter cartridge (43) and the bottom cover (44); the liquid discharge pipe (46) is arranged through the side wall of the filter cartridge (43); and the other end of the liquid discharge pipe (46) is in communication with the sedimentation tank (2).

3. A heavy metal wastewater multi-layer filtration device according to claim 1, characterized in that: The sedimentation filtering mechanism (5) comprises a partition (51), a lower liquid cover (52) and a filter screen plate (53); the partition (51) is fixedly connected to the inner wall of the sedimentation tank (2); the lower liquid cover (52) is arranged on the top of the partition (51); and a plurality of filter screen plates (53) are arranged on the side wall of the lower liquid cover (52).

4. A heavy metal wastewater multi-layer filtration device according to claim 1, characterized in that: The filter cleaning mechanism (6) comprises a cleaning port (61), a cleaning cover (62), a slag discharge port (63) and a control valve (64); the cleaning port (61) is arranged at the bottom of the inspection cover (31); the cleaning cover (62) is threadedly connected to the bottom of the cleaning port (61); the slag discharge port (63) is arranged at the middle of the cleaning cover (62); and the control valve (64) is arranged at the middle of the slag discharge port (63).

5. The heavy metal wastewater multi-layer filtration device according to claim 1, characterized in that: A guide ring (7) is fixedly connected to the inner wall of the filter tank (1), and the guide ring (7) is located above the support ring (32).

6. A heavy metal wastewater multi-layer filtration device according to claim 1, characterized in that: A limit ring (8) is fixedly connected to the top surface of the inspection cover (31), and the side wall of the limit ring (8) is arranged to be inclined.

7. A heavy metal wastewater multi-layer filtration device according to claim 1, characterized in that: A metal mesh disk (9) is provided on the top surface of the inspection cover (31), and the metal mesh disk (9) is located above the cleaning port (61).

8. The heavy metal wastewater multi-layer filtration device according to claim 1, characterized in that: A cleaning and repair plate (10) is provided on the side wall of the sedimentation box (2).

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