Automatic filter material replacing system of sewage filter and control method of automatic filter material replacing system

Abstract

The invention provides an automatic filter material replacing system of a sewage filter and a control method thereof.The automatic filter material replacing system comprises a shell, a driving motor, a filter plate, a transmission main shaft, a blade plate, a feeding pipeline and a lifting frame, a filter cavity is formed in the shell, and the feeding pipeline is communicated into the filter cavity from the top of the shell; a feeding port is formed in the upper portion of the feeding pipeline, a discharging port is formed in the lower end of the feeding pipeline, the filter plate is mounted in the filter cavity, a mounting hole is formed in the center of the top of the shell, the driving motor is vertically mounted on the lifting frame in a sliding mode, and an output shaft of the driving motor is in transmission connection with the upper end of the transmission main shaft; a mounting hole is formed in the shell, the transmission main shaft penetrates through the mounting hole, the blade plate is mounted at the lower end of the transmission main shaft, and a discharging opening is formed in the side part, above the filter plate, of the shell, so that the feeding process and the discharging process of a filter material of the sewage filter can be quickly and efficiently completed, and the technical problem of low efficiency in the filter material replacement process of the sewage filter is solved.

Description

Technical Field

[0001] This application relates to the technical field of sewage filtration equipment, and particularly relates to an automatic filter media replacement system for a sewage filter and a control method therefor. Background Art

[0002] A sewage filter is a filtering device in a tank body. The tank body is filled with filter media, which can effectively remove organic matters, chromaticity, peculiar smell, colonies, etc. in sewage, so as to obtain high-quality reclaimed water. Using a sewage filter to filter sewage is one of the main development trends of micro-irrigation filtration equipment, which has the advantages of high filtration accuracy and wide application range. An activated carbon filter uses activated carbon as the filter layer. Granular activated carbon has a developed pore structure, a large specific surface area and rich functional groups, so it is widely used in water treatment. Sewage passes through the activated carbon filter layer under the action of gravity for filtration to achieve water quality purification, thereby improving the water quality. When the outer layer of the activated carbon is saturated with adsorption, the activated carbon layer needs to be flushed to restore the filtration ability, or directly discharged and replaced with new activated carbon filter media. Backwashing of the activated carbon filter is an important guarantee for the normal operation of the activated carbon filter. However, the method of reverse flushing is not thorough enough for cleaning the activated carbon, and the method of manually replacing the filter media has a relatively high labor intensity and low efficiency. Therefore, it is very meaningful to improve the filter media replacement system of the sewage filter to improve its working efficiency. Summary of the Invention

[0003] The first technical problem to be solved by this application is: to provide an automatic filter media replacement system for a sewage filter to quickly and efficiently complete the feeding process and discharging process of the filter media of the sewage filter, and solve the technical problem of low efficiency in the filter media replacement process of the sewage filter.

[0004] The second technical problem to be solved by this application is: to provide a control method for an automatic filter media replacement system for a sewage filter.

[0005] To solve the above first technical problem, the technical solution of this application is: an automatic filter media replacement system for a sewage filter, including a housing, a driving motor, a filter plate, a transmission main shaft, a blade plate, a feeding pipe and a lifting frame. The interior of the housing is a filtration chamber. The feeding pipe passes through the top of the housing and enters the filtration chamber. The upper end of the feeding pipe is a feeding port and the lower end is a discharging port. The filter plate is fixedly installed inside the filtration chamber, and filter holes are evenly distributed on the filter plate. An installation hole is provided at the center of the top of the housing, and the lifting frame is fixedly installed above the housing. The driving motor is vertically slidably installed on the lifting frame. The output shaft of the driving motor is in transmission connection with the upper end of the transmission main shaft. The transmission main shaft passes through the installation hole, and the blade plate is fixedly installed at the lower end of the transmission main shaft above the filter plate. A discharging port is provided on the side of the housing above the filter plate, and the discharging port is connected with a cover plate.

[0006] Preferably, three equally - angled and uniformly - distributed vane plates are fixedly installed at the lower end of the transmission main shaft.

[0007] Preferably, the lower part of the feeding pipeline is inclined inward.

[0008] Preferably, the discharge port at the lower end of the feeding pipeline faces downward, and the transmission main shaft penetrates through the center of the discharge port.

[0009] Preferably, sliding seats are symmetrically arranged on both sides of the driving motor, and the sliding seats are vertically slidably connected to the lifting frame.

[0010] Preferably, a lifting driving device is arranged between the sliding seat and the lifting frame, and the lifting driving device is an electric cylinder or a hydraulic cylinder.

[0011] To solve the above - mentioned second technical problem, the technical solution of this application is as follows:

[0012] A control method for an automatic filter material replacement system of a sewage filter, comprising the following steps:

[0013] (1) Filter material loading: Loading filter material particles through the feeding port, and the filter material particles descend along the feeding pipeline and land in the middle - upper part above the filter plate, forming a filter material pile with a middle bulge;

[0014] (2) Starting feeding: Starting the driving motor to drive the transmission main shaft to rotate, and the filter material particles are pushed by the vane plates and gradually move towards the edge of the filter plate under the action of centrifugal force until the filter material above the filter plate is scraped flat to form a filter material layer with uniform thickness;

[0015] (3) Starting discharging: Opening the discharge port, starting the driving motor to drive the transmission main shaft to rotate, and while the transmission main shaft rotates, it descends uniformly until the vane plates contact the filter plate. The filter material particles on the filter plate are thrown out of the discharge port under the action of centrifugal force. After the filter material on the filter plate is completely discharged, the transmission main shaft and the vane plates rise and return to their original positions to complete the discharging process.

[0016] Preferably, in step (2), the transmission main shaft drives the vane plates to rotate at a speed of 2.5 - 3.5 rad / s; in step (3), the transmission main shaft drives the moving vanes to rotate at a speed of 6 - 7 rad / s.

[0017] The technical effects obtained by adopting the above - mentioned technical solutions are as follows:

[0018] The filter media automatic replacement system of the present application can generate a filter media layer with uniform thickness on the filter plate. The discharging process can quickly discharge the filter media on the filter plate from the filtration chamber, realizing the automation of the filter media replacement process and improving the efficiency of automatic filter media replacement. The filter media automatic replacement system of this filter can quickly and efficiently complete the feeding process and discharging process of the filter media for the sewage filter. Its application in the sewage filter will greatly improve the working efficiency of replacing the filter media of the sewage filter, and also has important significance in improving the utilization rate of water resources and advocating water conservation.

[0019] Since there are 3 equally-angularly and uniformly distributed vane plates fixedly installed at the lower end of the driving main shaft, the working efficiency of the filter media automatic replacement system can be improved.

[0020] Since the lower part of the feeding pipe is inclined inward, and the lower part of the feeding pipe is a bent structure, it can not only ensure the feeding efficiency but also avoid blockage of the feeding pipe.

[0021] Since the discharge port at the lower end of the feeding pipe is arranged downward, and the driving main shaft passes through the center of the discharge port, the filter media particles fall on the middle part above the filter plate along the feeding pipe, forming a filter media pile with a middle bulge. Description of the Drawings

[0022] The following further describes the present application with reference to the drawings and embodiments.

[0023] Figure 1 is the structural schematic diagram of the embodiment of the present application;

[0024] Figure 2 is the structural schematic diagram of the feeding state of the embodiment of the present application;

[0025] Figure 3 is the structural schematic diagram of the discharging state of the embodiment of the present application;

[0026] In the figure, 1. housing; 11. filtration chamber; 2. driving motor; 3. filter plate; 4. driving main shaft; 5. vane plate; 6. feeding pipe; 7. lifting frame; 8. mounting hole; 9. discharge port; 10. sliding seat; 12. water inlet; 13. water outlet. Detailed Embodiments

[0027] As Figures 1 to 2As shown in the figure, an automatic filter media replacement system for a sewage filter includes a housing 1, a driving motor 2, a filter plate 3, a transmission main shaft 4, a vane plate 5, a feeding pipe 6, and a lifting frame 7. The interior of the housing 1 is a filtering chamber 11. The feeding pipe 6 passes through the top of the housing 1 and enters the filtering chamber 11. The upper end of the feeding pipe 6 is a feeding port and the lower end is a discharging port. The lower part of the feeding pipe 6 is inclined inward. Since the lower part of the feeding pipe 6 is a curved structure, it can not only ensure the feeding efficiency but also prevent the feeding pipe 6 from being blocked. The discharging port at the lower end of the feeding pipe 6 is arranged downward. The transmission main shaft 4 passes through the center of the discharging port, so that the filter media particles fall on the middle part above the filter plate 3 along the feeding pipe 6, forming a filter media pile with a middle bulge. A filter plate 3 is installed inside the filtering chamber 11, and filter holes are evenly distributed on the filter plate 3.

[0028] A lifting frame 7 is fixedly installed above the housing 1. The driving motor 2 is vertically slidably installed on the lifting frame 7. Sliding seats 10 are symmetrically arranged on both sides of the driving motor 2, and the sliding seats 10 are vertically slidably connected to the lifting frame 7. An elevating drive device is arranged between the sliding seats 10 and the lifting frame 7, and the elevating drive device is an electric cylinder or a hydraulic cylinder. The output shaft of the driving motor 2 is drivingly connected to the upper end of the transmission main shaft 4. An installation hole 8 is provided at the center of the top of the housing 1. The transmission main shaft 4 passes through the installation hole 8. A vane plate 5 is fixedly installed above the filter plate 3 at the lower end of the transmission main shaft 4. Three vane plates 5 evenly distributed at equal angles can be fixedly installed at the lower end of the transmission main shaft 4 to improve the working efficiency of the automatic filter media replacement system. A discharging port 9 is provided on the side of the housing 1 above the filter plate 3, and the discharging port 9 is connected to a cover plate.

[0029] The working principle of the automatic filter media replacement system for the sewage filter in this application for sewage filtration is as follows:

[0030] When the sewage filter works, the water inlet 12 is connected to the sewage pipe. Sewage flows from the water inlet into the filtering chamber 11, is filtered through the filter media layer, then flows to the bottom of the filtering chamber 11, and finally flows out through the water outlet 13 to achieve sewage purification.

[0031] As Figures 2 to 3 shown, the control method of the automatic filter media replacement system for the sewage filter in this application includes the following steps:

[0032] (1) Filter media loading: Load the filter media particles through the feeding port. The filter media particles fall on the middle part above the filter plate 3 along the feeding pipe 6, forming a filter media pile with a middle bulge;

[0033] (2) Start feeding: Start the driving motor to drive the transmission main shaft 4 to rotate at a speed of 2.5 - 3.5 rad / s. The filter media particles are pushed by the vane plate 5 and gradually move towards the edge of the filter plate 3 under the action of centrifugal force until the filter media above the filter plate 3 is scraped flat to form a filter media layer with uniform thickness;

[0034] (3) Start discharging: Open the discharge port 9, start the drive motor 2 to drive the transmission main shaft 4 to rotate at a speed of 6 - 7 rad / s. While the transmission main shaft 4 is rotating, it descends uniformly until the blade plate 5 contacts the filter plate 3. The filter material particles on the filter plate 3 are thrown out of the discharge port 9 under the action of centrifugal force. After the original filter material on the filter plate 3 is completely discharged, raise the transmission main shaft 4 and the blade plate 5 to reset, and complete the discharging process.

[0035] The filter material automatic replacement system of this application can generate a filter material layer with uniform thickness on the filter plate 3. The discharging process can quickly discharge the filter material on the filter plate 3 from the filtration chamber 11, realizing the automation of the filter material replacement process and improving the efficiency of filter material automatic replacement. The filter material automatic replacement system of this filter can quickly and efficiently complete the feeding process and discharging process of the filter material of the sewage filter. Its application to the sewage filter will greatly improve the working efficiency of replacing the filter material of the sewage filter, and also has important significance in improving the utilization rate of water resources and advocating water conservation.

[0036] Obviously, the above description and record are only examples and not intended to limit the disclosure, application or use of the present invention. The scope of the present invention will include any embodiments falling within the foregoing specification and the appended claims.

Claims

1. An automatic filter media replacement system for sewage filters, characterized in that: It includes a housing, a drive motor, filter plates, a transmission main shaft, a vane plate, a feeding pipe, and a lifting frame. The interior of the housing is a filtration chamber. The feeding pipe leads into the filtration chamber at the top of the housing. The upper end of the feeding pipe is a feeding port and the lower end is a discharge port. The filter plates are fixedly installed inside the filtration chamber, and filter holes are evenly distributed on the filter plates. There is a mounting hole at the center of the top of the housing. The lifting frame is fixedly installed above the housing. The drive motor is vertically slidably installed on the lifting frame. The output shaft of the drive motor is drivingly connected to the upper end of the transmission main shaft. The transmission main shaft passes through the mounting hole. A vane plate is fixedly installed at the lower end of the transmission main shaft above the filter plates. There is a discharge port on the side of the housing above the filter plates, and the discharge port is connected to a cover plate.

2. The automatic replacement system for the filter media of the sewage filter as described in claim 1, wherein: Three vane plates are fixedly installed at equal angular intervals and evenly distributed at the lower end of the transmission main shaft.

3. The automatic filter media replacement system for sewage filters according to claim 1, characterized in that: The lower part of the feeding pipe is inclined inward.

4. The automatic replacement system of the sewage filter medium according to claim 3, wherein: The discharge port at the lower end of the feeding pipe is arranged downward, and the transmission main shaft passes through the center of the discharge port.

5. The automatic filter material replacement system for sewage filters according to claim 1, characterized in that: Sliding seats are symmetrically arranged on both sides of the drive motor, and the sliding seats are vertically slidably connected to the lifting frame.

6. The automatic filter media replacement system for sewage filters according to claim 5, characterized in that: There is a lifting drive device between the sliding seat and the lifting frame, and the lifting drive device is an electric cylinder or a hydraulic cylinder.

7. The control method of the automatic filter media replacement system for sewage filters according to claim 1, characterized in that, It includes the following steps: (1) Filter material loading: Load filter material particles through the feeding port. The filter material particles fall on the middle part above the filter plates along the feeding pipe, forming a filter material pile with a middle bulge. (2) Start feeding: Start the drive motor to drive the transmission main shaft to rotate. The filter material particles are pushed by the vane plate and gradually move towards the edge of the filter plates under the action of centrifugal force until the filter material above the filter plates is leveled to form a filter material layer with a uniform thickness. (3) Start discharging: Open the discharge port, start the drive motor to drive the transmission main shaft to rotate. While the transmission main shaft rotates, it descends uniformly until the vane plate contacts the filter plates. The filter material particles on the filter plates are thrown out of the discharge port under the action of centrifugal force. After the filter material on the filter plates is completely discharged, raise the transmission main shaft and the vane plate to return to the original position to complete the discharging process.

8. The control method of the automatic filter media replacement system for sewage filters according to claim 7, characterized in that, In step (2), the transmission main shaft drives the vane plate to rotate at a speed of 2.5 - 3.5 rad / s; in step (3), the transmission main shaft drives the moving vane to rotate at a speed of 6 - 7 rad / s.

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