Anti-precipitation mechanism for disc filter

Abstract

The utility model provides an anti-precipitation mechanism for a disc filter, which relates to the technical field of disc filters and comprises a filter tank, and a bottom plate is mounted at the inner bottom of the filter tank. According to the utility model, the air pump, the hollow shell, the communicating pipe and the bottom plate are matched, so that compressed air is upwards sprayed out from the water bottom in the filter tank body through the air nozzle, and solid particle impurities precipitated in the filter tank body are blown away; the communicating pipe is controlled to be opened and closed through the electromagnetic valve, so that compressed gas can be sprayed out from a specified area in the filter tank body to blow away sediments, the use is relatively flexible, and the thrust generated in the upward flowing process of the compressed gas can be overturned upwards through the baffle plate; after gas supply is stopped, the baffle can be rapidly driven to rotate under the action of the tension spring to block the rectangular channel, so that impurities are prevented from entering the bottom plate to cause blockage, the whole structure is ingenious, and compared with a mechanical stirrer, the energy consumption is low, and the maintenance is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of disc filters, in particular to an anti-sedimentation mechanism for disc filters. Background Art

[0002] Disc filter is a continuous vacuum filtration equipment, which is used to filter the slurry in the production of phosphoric acid to separate phosphoric acid from phosphogypsum. It can also be used in metallurgy, light industry, national defense and other industrial sectors. Disc filter is composed of filter units in parallel. Its filter unit is mainly composed of a group of annular reinforced plastic filter discs with grooves or edges. When filtering, sewage enters from the outside, and the rims formed by the grooves and edges on the adjacent filter discs intercept the solids in the water. When backwashing, water flows from the inside of the annular filter disc to the outside, washing away the dirt intercepted on the filter disc and discharging it through the sewage outlet.

[0003] During the filtration process of the disc filter, due to the characteristics of the material and the structure of the filter, fixed particles are easy to settle in the filter tank chamber, which will affect the filtering effect and filter cake quality of the filter. Therefore, an agitator is often installed in the filter tank for continuous stirring to avoid the precipitation of solid particles. However, the continuously working agitator not only has high energy consumption, but also complex maintenance. Therefore, in response to the above problems, we propose a new anti-sedimentation mechanism for disc filters. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that an agitator is set in the filter tank body for continuous stirring to avoid the precipitation of solid particles, but the continuously working agitator not only has high energy consumption but also is complicated to maintain, and an anti-precipitation mechanism for a disc filter is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-sedimentation mechanism for a disc filter, comprising a filter tank body, a bottom plate is installed at the inner bottom of the filter tank body, a flat plate is arranged between the inner surface walls of the filter tank body and above the bottom plate, a plurality of transverse ventilation grooves are arranged inside the bottom plate, a plurality of groups of air jets are arranged on the top of the bottom plate, a hollow shell is installed on the right surface of the filter tank body near the top, an air pump is fixedly installed on the right surface of the filter tank body below the hollow shell, a plurality of connecting pipes are fixedly connected to the top of the hollow shell, the bottom ends of the plurality of connecting pipes are fixedly connected to the top of the bottom plate and the plurality of connecting pipes are respectively connected to the plurality of ventilation grooves.

[0006] Preferably, the plurality of groups of jet ports are respectively connected to the plurality of ventilation grooves, the air outlet end of the air pump is fixedly connected to the bottom of the hollow shell, and electromagnetic valves are installed outside the plurality of connecting pipes.

[0007] Preferably, a plurality of rectangular channels are installed on the top of the bottom plate, and the plurality of rectangular channels correspond to the positions of the plurality of air jets respectively.

[0008] Preferably, the front and rear inner walls of the rectangular channel are fixedly connected with a rotating shaft near the right edge, and the outer surface of the rotating shaft is rotatably connected with a baffle.

[0009] Preferably, a tension spring is fixedly connected between the bottom of the baffle and the right inner wall of the rectangular channel, and the baffle is in a horizontal position.

[0010] Preferably, a limiting block is fixedly connected to the left inner surface wall of the rectangular channel, and the top of the limiting block fits with the bottom of the baffle.

[0011] Preferably, a conical cover is fixedly connected to the top of the rectangular channel, a mounting sleeve is fixedly connected to the top of the conical cover, a bearing is installed on the inner surface wall of the mounting sleeve, an impeller is fixedly connected to the inner surface wall of the bearing, the outer surface of the mounting sleeve passes through the outer surface of the flat plate, and the mounting sleeve and the top of the flat plate are in the same plane.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the air pump, the hollow shell, the connecting pipe and the bottom plate cooperate to make the compressed air spray upward from the bottom of the filter tank through the air jet port, so as to blow away the solid particle impurities precipitated in the filter tank, and the opening and closing of the connecting pipe can be controlled by the solenoid valve to make the compressed gas spray from the designated area inside the filter tank to blow away the sediment, which is more flexible to use. In addition, the thrust generated by the upward flow of the compressed gas will cause the baffle to flip upward. After the air supply stops, the baffle will be quickly driven to rotate under the action of the tension spring to block the rectangular channel, thereby avoiding impurities from entering the bottom plate and causing blockage. The overall structure is ingenious, and compared with the mechanical agitator, it not only has low energy consumption, but also simple maintenance.

[0014] 2. In the utility model, when the gas ejected from the jet port hits the impeller, mechanical energy driving the impeller to rotate is generated, and when the impeller rotates in the water inside the filter tank, it drives the surrounding water flow to move, forming vortices and turbulence, thereby further promoting the dispersion of impurities in the water of the filter tank and improving the anti-sedimentation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an anti-sedimentation mechanism for a disc filter is proposed for the utility model;

[0016] Figure 2 A partial structural schematic diagram of an anti-sedimentation mechanism for a disc filter is proposed for the utility model;

[0017] Figure 3 The utility model provides a schematic diagram of a hollow shell structure of an anti-sedimentation mechanism for a disc filter;

[0018] Figure 4 The utility model provides a schematic diagram of a rectangular channel structure of an anti-sedimentation mechanism for a disc filter.

[0019] Legend: 1. Filter body; 11. Flat plate; 2. Bottom plate; 21. Ventilation groove; 22. Jet port; 3. Hollow shell; 31. Connecting pipe; 32. Solenoid valve; 33. Air pump; 4. Rectangular channel; 41. Rotating shaft; 42. Baffle; 43. Tension spring; 44. Limit block; 5. Conical cover; 51. Mounting sleeve; 52. Bearing; 53. Impeller. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Example 1: Figure 1-Figure 4As shown, the utility model provides an anti-sedimentation mechanism for a disc filter, comprising a filter tank body 1, a bottom plate 2 is installed at the inner bottom of the filter tank body 1, a flat plate 11 is arranged between the inner surface walls of the filter tank body 1 and above the bottom plate 2, a plurality of transverse ventilation grooves 21 are arranged inside the bottom plate 2, a plurality of groups of air jets 22 are arranged on the top of the bottom plate 2, a hollow shell 3 is installed near the top of the right surface of the filter tank body 1, an air pump 33 is fixedly installed at a position below the hollow shell 3 on the right surface of the filter tank body 1, a plurality of connecting pipes 31 are fixedly connected to the top of the hollow shell 3, the bottom ends of the plurality of connecting pipes 31 are fixedly connected to the top of the bottom plate 2, and the plurality of connecting pipes 31 are respectively connected to the plurality of ventilation grooves 21. In a connected state, multiple groups of air jets 22 are respectively connected to multiple ventilation grooves 21, the air outlet end of the air pump 33 is fixedly connected to the bottom of the hollow shell 3, and electromagnetic valves 32 are installed on the outside of the multiple connecting pipes 31. Multiple rectangular channels 4 are installed on the top of the bottom plate 2, and the multiple rectangular channels 4 correspond to the positions of the multiple air jets 22 respectively. The front and rear inner walls of the rectangular channels 4 are fixedly connected with a rotating shaft 41 near the right edge, and the outer surface of the rotating shaft 41 is rotatably connected with a baffle 42. The bottom of the baffle 42 and the right inner wall of the rectangular channel 4 are fixedly connected with a tension spring 43, and the baffle 42 is in a horizontal state. The left inner wall of the rectangular channel 4 is fixedly connected with a limiting block 44, and the top of the limiting block 44 fits the bottom of the baffle 42.

[0023] The effect achieved by the entire embodiment 1 is that, when in use, the air pump 33 is started to inhale air and compress it into the interior of the hollow shell 3, and the compressed air will enter the multi-way ventilation groove 21 inside the bottom plate 2 through the connecting pipe 31, and then will be ejected upward through the jet port 22, the rectangular channel 4, the conical cover 5 and the mounting sleeve 51. At this time, the compressed air ejected from the bottom of the filter tank body 1 can effectively blow away the solid particle impurities precipitated in the filter tank body 1. At the same time, the solenoid valve 32 can be controlled to close one or more connecting pipes 31 as needed, so that the compressed gas is ejected from the specified area inside the filter tank body 1 to blow away the precipitate, which is more flexible to use, and the compressed gas is ejected from the bottom of the rectangular channel 4. When the thrust generated during the upward flow acts on the baffle 42, it will push the baffle 42 to flip upward with the rotating shaft 41 as the center and pull the tension spring 43 to extend. When the gas delivery stops, the tension spring 43 will shrink rapidly and drive the baffle 42 to rotate and block the rectangular channel 4, thereby preventing impurities from entering the bottom plate 2 and causing blockage. The overall structure is ingenious. Compared with the mechanical agitator, it not only has low energy consumption, but also simple maintenance. The design of the flat plate 11 makes the top of the mounting sleeve 51 and the flat plate 11 form a plane, so that the impurities are located above the airflow ejection position. The conical cover 5 between the mounting sleeve 51 and the rectangular channel 4 is in a contracted shape. Therefore, after the airflow passes through, the space gradually shrinks, so the flow rate will accelerate the ejection.

[0024] Example 2: Figure 1-Figure 4As shown, a conical cover 5 is fixedly connected to the top of the rectangular channel 4, a mounting sleeve 51 is fixedly connected to the top of the conical cover 5, a bearing 52 is installed on the inner surface wall of the mounting sleeve 51, an impeller 53 is fixedly connected to the inner surface wall of the bearing 52, the outer surface of the mounting sleeve 51 passes through the outer surface of the flat plate 11, and the mounting sleeve 51 and the top of the flat plate 11 are in the same plane.

[0025] The effect achieved by the entire embodiment 2 is that when the gas ejected from the jet port 22 hits the impeller 53, mechanical energy driving the impeller 53 to rotate is generated to cause the impeller 53 to rotate, and when the impeller 53 rotates in the water inside the filter tank body 1, it will drive the surrounding water flow to move, forming vortices and turbulence, thereby further promoting the dispersion of impurities in the water of the filter tank body 1 and improving the anti-sedimentation effect. The impeller 53 is installed inside the mounting sleeve 51 through the bearing 52, which has the effect of reducing friction and allows the impeller 53 to rotate smoothly.

[0026] Working principle: When in use, start the air pump 33 to inhale air and compress it into the interior of the hollow shell 3. The compressed air will enter the multi-way ventilation groove 21 inside the bottom plate 2 through the connecting pipe 31, and then will be ejected upward through the jet port 22, the rectangular channel 4, the conical cover 5 and the installation sleeve 51. At this time, the compressed air ejected from the bottom of the filter tank body 1 can effectively blow away the solid particle impurities precipitated in the filter tank body 1. At the same time, the solenoid valve 32 can be controlled to close one or more connecting pipes 31 as needed, so that the compressed gas is ejected from the specified area inside the filter tank body 1 to blow away the sediment. It is more flexible to use, and the thrust generated by the compressed gas flowing upward from the bottom of the rectangular channel 4 acts on After the baffle 42 is moved, it will push the baffle 42 to flip upward with the rotating shaft 41 as the center and pull the tension spring 43 to extend. When the gas delivery stops, the tension spring 43 will shrink rapidly and drive the baffle 42 to rotate and block the rectangular channel 4, thereby preventing impurities from entering the bottom plate 2 and causing blockage. The overall structure is ingenious. Compared with the mechanical agitator, it not only has low energy consumption, but also simple maintenance. In addition, when the gas ejected from the jet port 22 hits the impeller 53, it will generate mechanical energy to drive the impeller 53 to rotate, causing the impeller 53 to rotate. When the impeller 53 rotates in the water inside the filter tank body 1, it will drive the surrounding water flow to move, forming vortices and turbulence, thereby further promoting the dispersion of impurities in the water of the filter tank body 1 and improving the anti-sedimentation effect.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An anti-sedimentation mechanism for a disc filter, comprising a filter tank (1), characterized in that: A bottom plate (2) is installed at the inner bottom of the filter tank body (1); a flat plate (11) is arranged between the inner surface walls of the filter tank body (1) at a position above the bottom plate (2); a plurality of transverse ventilation grooves (21) are arranged inside the bottom plate (2); a plurality of groups of air jets (22) are arranged at the top of the bottom plate (2); a hollow shell (3) is installed at a position close to the top of the right surface of the filter tank body (1); an air pump (33) is fixedly installed at a position below the hollow shell (3) on the right surface of the filter tank body (1); a plurality of connecting pipes (31) are fixedly connected to the top of the hollow shell (3); the bottom ends of the plurality of connecting pipes (31) are fixedly connected to the top of the bottom plate (2); and the plurality of connecting pipes (31) are respectively connected to the plurality of ventilation grooves (21).

2. The anti-sedimentation mechanism for a disc filter according to claim 1, characterized in that: The plurality of groups of air jets (22) are respectively connected to the plurality of ventilation grooves (21); the air outlet end of the air pump (33) is fixedly connected to the bottom of the hollow shell (3); and electromagnetic valves (32) are installed outside the plurality of connecting pipes (31).

3. The anti-sedimentation mechanism for a disc filter according to claim 2, characterized in that: A plurality of rectangular channels (4) are installed on the top of the bottom plate (2), and the plurality of rectangular channels (4) respectively correspond to the positions of the plurality of air jet ports (22).

4. The anti-sedimentation mechanism for a disc filter according to claim 3, characterized in that: A rotating shaft (41) is fixedly connected to the front and rear inner walls of the rectangular channel (4) near the right edge, and a baffle (42) is rotatably connected to the outer surface of the rotating shaft (41).

5. The anti-sedimentation mechanism for a disc filter according to claim 4, characterized in that: A tension spring (43) is fixedly connected between the bottom of the baffle (42) and the right inner wall of the rectangular channel (4), and the baffle (42) is in a horizontal position.

6. The anti-sedimentation mechanism for a disc filter according to claim 5, characterized in that: A limit block (44) is fixedly connected to the left inner surface wall of the rectangular channel (4), and the top of the limit block (44) is in contact with the bottom of the baffle (42).

7. The anti-sedimentation mechanism for a disc filter according to claim 6, characterized in that: A conical cover (5) is fixedly connected to the top of the rectangular channel (4), a mounting sleeve (51) is fixedly connected to the top of the conical cover (5), a bearing (52) is mounted on the inner surface wall of the mounting sleeve (51), an impeller (53) is fixedly connected to the inner surface wall of the bearing (52), an outer surface of the mounting sleeve (51) passes through the outer surface of the flat plate (11), and the mounting sleeve (51) and the top of the flat plate (11) are in the same plane.

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