Backwashing device of ceramic filter and construction method of backwashing device

Abstract

The invention relates to the technical field of ceramic filters, in particular to a backwashing device of a ceramic filter and a construction method thereof.The backwashing device comprises a filter body, a three-way valve is fixedly connected to the front side of the bottom of the filter body, and a water inlet pipe is fixedly communicated with the left side of the front of the three-way valve; the right side of the front portion of the three-way valve fixedly communicates with a pressurizing air supply pipe, the right end of the pressurizing air supply pipe is fixedly connected with an air storage tank, the top of the three-way valve is fixedly connected with a limiting frame, the front side of the limiting frame is fixedly connected with a transmission box, and the inner wall of the transmission box is fixedly connected with a controller. An adjusting mechanism is arranged in the transmission box, and a pressure stabilizing mechanism is arranged on the top of the pressurizing air supply pipe. Adjusting communication of the three-way valve and pressure stabilization of air supply are achieved, and the convenience and protection performance of the device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic filters, in particular to a backwashing device of a ceramic filter and a construction method thereof. Background Art

[0002] Ceramic filters, a type of solid-liquid separation equipment based on the capillary action principle, are widely used in numerous fields, including mining, chemical engineering, and food processing. As a ceramic filter continues to operate, the pores of the filter medium gradually become clogged with solid particles and impurities. To restore the filter's performance, extend its lifespan, and ensure efficient and stable operation, the ceramic filter medium must be regularly cleaned, or backwashed.

[0003] The existing device mainly uses air backwashing and water backwashing in combination. The existing technology is similar to a backwashing device of a ceramic filter and its construction method. The structure with publication number CN218833771U includes a shell, the shell includes a tank body, the surface of the tank body is provided with a water inlet, the surface of the tank body is provided with a water outlet, the inside of the tank body is provided with a first ceramic filter plate, and the inside of the tank body is provided with a second ceramic filter plate. The invention uses air backwashing to reduce water consumption and make flushing more stable. However, there are still areas that can be optimized in this device.

[0004] Existing devices mainly use two sets of valve bodies to control the connection between the air circuit and the water circuit, which makes it difficult for some devices to quickly cycle and alternately control the connection between the water circuit or the air circuit, resulting in inconvenience in alternating air backwashing and water backwashing of the ceramic filter. At the same time, some devices find it difficult to stably control the pressure of the air backwashing, resulting in excessive air backwashing pressure that damages the ceramic filter assembly and reduces the working efficiency and practicality of the device. Therefore, in order to solve the above problems, a backwashing device for a ceramic filter and a construction method thereof are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a backwashing device for a ceramic filter and a construction method thereof, so as to solve the problem that the existing devices in the prior art mentioned in the above background technology mainly use two sets of valve bodies to control the connection between the air circuit and the water circuit, making it difficult for some devices to quickly cycle and alternately control the connection between the water circuit or the air circuit, thereby making it inconvenient to perform alternating air backwashing and water backwashing on the ceramic filter. At the same time, it is difficult for some devices to stably control the pressure of the air backwashing, thereby causing the air backwashing pressure to be too high and damage the ceramic filter assembly.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a backwash device for a ceramic filter and a construction method thereof, comprising a filter body, a three-way valve fixedly connected to the front side of the bottom of the filter body, a water inlet pipe fixedly connected to the left side in front of the three-way valve, a pressurized air supply pipe fixedly connected to the right side in front of the three-way valve, a gas storage tank fixedly connected to the right end of the pressurized air supply pipe, a limit frame fixedly connected to the top of the three-way valve, a transmission box fixedly connected to the front side of the limit frame, and a controller fixedly connected to the inner wall of the transmission box;

[0007] An adjusting mechanism is provided inside the transmission box, and the adjusting mechanism includes a servo motor. The bottom of the servo motor is fixedly connected to the top of the transmission box. A pressure stabilizing mechanism is provided on the top of the pressurized air supply pipe. The pressure stabilizing mechanism includes a return air pipe. The left side of the return air pipe is fixedly connected to the left side of the outer wall of the pressurized air supply pipe, and the right side of the return air pipe is fixedly connected to the outer wall of the air storage tank.

[0008] Preferably, a transmission worm is fixedly connected to the middle of the bottom of the servo motor, the bottom end of the transmission worm is movably connected to the bottom of the inner wall of the transmission box, and the right side of the outer wall of the transmission worm is meshedly connected with a transmission worm wheel.

[0009] Preferably, the inner wall of the transmission worm gear is fixedly connected to a transmission shaft, the front end of the transmission shaft is movably connected to the front side of the inner wall of the transmission box, and the rear end of the transmission shaft passes through the front side wall of the limit frame and is fixedly connected to a half gear.

[0010] Preferably, the outer wall of the half gear is meshedly connected with a pair of rack plates, the outer wall of the rack plate is fixedly connected with a sliding frame, the lower inner wall of the sliding frame is fixedly connected with a valve core, and the valve core is inserted inside the three-way valve.

[0011] Preferably, a first piston is slidably connected to the left side of the inner wall of the air return pipe, a telescopic rod is fixedly connected to the right end of the first piston, and a second piston is fixedly connected to the right end of the telescopic rod.

[0012] Preferably, a spring is fixedly connected to the outer ring of the telescopic rod on the right side of the first piston, and the right end of the spring is fixedly connected to the left side of the second piston.

[0013] Preferably, an adjusting bolt is movably connected to the middle part of the right side of the second piston, the right end of the adjusting bolt passes through the return air pipe and is fixedly connected to a twist cover, a fixing nut is provided on the outer wall thread sleeve of the adjusting bolt, and the left side of the fixing nut is fixedly connected to the right side of the return air pipe.

[0014] A construction method of a backwashing device for a ceramic filter, including the backwashing device for the ceramic filter described above, is specifically performed as follows:

[0015] During use, when the three-way valve needs to be adjusted, the servo motor is first started through the controller, the servo motor drives the transmission worm to limit rotation, the transmission worm engages to drive the transmission worm gear to rotate, the transmission worm gear drives the transmission shaft to limit rotation, the transmission shaft drives the half gear to limit rotation, the half gear drives the rack plate and the sliding frame to slide back and forth left and right, the sliding frame drives the valve core to move synchronously to control the connection of the water path or the air path, thereby realizing the adjustment operation of the three-way valve.

[0016] When it is necessary to stabilize the air supply pressure, first manually turn the twist cover, which drives the adjusting bolt to rotate within a limited range. The adjusting bolt is restricted by the fixing nut and drives the first piston to slide left and right, thereby controlling the pressure release threshold of the return air pipe. The high-pressure gas drives the first piston to slide to the right and compresses the spring, so that the high-pressure gas can release the pressure through the return air pipe and flow back into the air storage tank, thereby stabilizing the control of the air backwash pressure and realizing the pressure stabilization operation of the air supply. The operation ends here.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention adjusts the servo motor, transmission worm, transmission worm wheel, transmission shaft, half gear, rack plate, sliding frame and valve core in the adjustment mechanism. The controller starts the servo motor to drive the transmission worm to limit rotation, the transmission worm engages to drive the transmission worm wheel, transmission shaft and half gear to limit rotation, and the half gear drives the rack plate, sliding frame and valve core to slide back and forth left and right, thereby realizing the adjustment of the three-way valve, so that some devices can cyclically and alternately control the connection of the water path or the air path, facilitating alternating air backwashing and water backwashing of the ceramic filter, thereby improving the convenience and practicality of the device.

[0019] 2. The present invention uses the return air pipe, first piston, telescopic rod, second piston, spring, adjusting bolt, twist cover and fixing nut in the pressure stabilizing mechanism, and drives the first piston to slide left and right through the twist cover, joint bolt and fixing nut, thereby controlling the pressure release threshold of the return air pipe. The high-pressure gas drives the first piston to slide to the right and compresses the spring, so that the high-pressure gas can release the pressure through the return air pipe and flow back into the gas storage tank, realizing the pressure stabilization of the gas supply, so that some devices can stably control the pressure of the gas backwashing, effectively avoiding the damage of the ceramic filter component due to excessive gas backwashing pressure, and improving the protection and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front side perspective view of the structure of the present invention;

[0021] Figure 2 It is a front cross-sectional perspective view of the structure of the present invention;

[0022] Figure 3 It is a side sectional perspective view of the partial structure of the transmission box and the adjustment mechanism of the present invention;

[0023] Figure 4 It is a front cross-sectional perspective view of a partial structure of the three-way valve and the regulating mechanism of the present invention;

[0024] Figure 5 It is a top-view cross-sectional perspective view of the partial structure of the air return pipe and the pressure stabilizing mechanism of the present invention.

[0025] In the figure: 11. Filter body; 12. Three-way valve; 13. Water inlet pipe; 14. Pressurized air supply pipe; 15. Air storage tank; 16. Limit frame; 17. Transmission box; 18. Controller; 2. Adjustment mechanism; 21. Servo motor; 22. Transmission worm; 23. Transmission worm gear; 24. Transmission shaft; 25. Half gear; 26. Rack plate; 27. Sliding frame; 28. Valve core; 3. Pressure stabilizing mechanism; 31. Return air pipe; 32. First piston; 33. Telescopic rod; 34. Second piston; 35. Spring; 36. Adjustment bolt; 37. Twist cover; 38. Fixing nut. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 , an embodiment provided by the present invention:

[0028] A backwash device for a ceramic filter and a construction method thereof include a filter body 11, a three-way valve 12 fixedly connected to the bottom front side of the filter body 11, a water inlet pipe 13 fixedly connected to the left front side of the three-way valve 12, a pressurized air supply pipe 14 fixedly connected to the right front side of the three-way valve 12, a gas storage tank 15 fixedly connected to the right end of the pressurized air supply pipe 14, a limit frame 16 fixedly connected to the top of the three-way valve 12, a transmission box 17 fixedly connected to the front side of the limit frame 16, and a controller 18 fixedly connected to the inner wall of the transmission box 17;

[0029] An adjusting mechanism 2 is provided inside the transmission box 17. The adjusting mechanism 2 includes a servo motor 21. The bottom of the servo motor 21 is fixedly connected to the top of the transmission box 17. A transmission worm 22 is fixedly connected to the middle of the bottom of the servo motor 21. The bottom end of the transmission worm 22 is movably connected to the bottom of the inner wall of the transmission box 17. The right side of the outer wall of the transmission worm 22 is meshed with a transmission worm wheel 23. Through this design, the servo motor 21 drives the transmission worm 22 to rotate in a limited position, so that the transmission worm 22 meshes and drives the transmission worm wheel 23 to rotate. The inner wall of the transmission worm wheel 23 is fixedly connected with a transmission shaft 24. The front end of the dynamic shaft 24 is movably connected to the front side of the inner wall of the transmission box 17, and the rear end of the transmission shaft 24 passes through the front side wall of the limit frame 16 and is fixedly connected to the half gear 25. Through this design, the transmission worm gear 23 drives the transmission shaft 24 and the half gear 25 to rotate in a limited manner. The outer wall of the half gear 25 is meshed with a pair of rack plates 26, and the outer wall of the rack plate 26 is fixedly connected to a sliding frame 27. The valve core 28 is fixedly connected to the lower part of the inner wall of the sliding frame 27. The valve core 28 is inserted into the inside of the three-way valve 12. Through this design, the half gear 25 is meshed to drive a pair of rack plates 26 and the sliding frame 27 to slide back and forth, so that the sliding frame 27 drives the valve core 28 to move synchronously to control the connection of the water path or the air path, which is convenient for alternating air backwashing and water backwashing of the ceramic filter.

[0030] A pressure stabilizing mechanism 3 is provided on the top of the pressurized air supply pipe 14. The pressure stabilizing mechanism 3 includes a return air pipe 31. The left side of the return air pipe 31 is fixedly connected to the left side of the outer wall of the pressurized air supply pipe 14. The right side of the return air pipe 31 is fixedly connected to the outer wall of the air storage tank 15. The left side of the inner wall of the return air pipe 31 is slidably connected to the first piston 32. The right end of the first piston 32 is fixedly connected to the telescopic rod 33. The right end of the telescopic rod 33 is fixedly connected to the second piston 34. Through this design, the first piston 32 and the second piston 34 are slidably connected to the right side of the inner wall of the return air pipe 31. The right side of the first piston 32 is located on the outer ring of the telescopic rod 33 and is fixedly connected to the spring 35. The right end of the spring 35 is fixedly connected to the left side of the second piston 34. , the high-pressure gas drives the first piston 32 to slide to the right and compresses the spring 35, so that the high-pressure gas can release the pressure through the return pipe 31 and flow back into the gas storage tank 15. The middle part of the right side of the second piston 34 is movably connected with an adjusting bolt 36. The right end of the adjusting bolt 36 passes through the return pipe 31 and is fixedly connected to a twist cover 37. The outer wall of the adjusting bolt 36 is threadedly sleeved with a fixing nut 38, and the left side of the fixing nut 38 is fixedly connected to the right side of the return pipe 31. Through this design, the twist cover 37 drives the adjusting bolt 36 to rotate within a limited position. The adjusting bolt 36 is restricted by the fixing nut 38 and drives the first piston 32 to slide left and right, thereby controlling the pressure release threshold of the return pipe 31, which is convenient for stably controlling the pressure of gas backwashing.

[0031] Working principle: When the three-way valve 12 needs to be adjusted, the servo motor 21 is first started through the controller 18. The servo motor 21 drives the transmission worm 22 to limit rotation, the transmission worm 22 engages and drives the transmission worm gear 23 to rotate, the transmission worm gear 23 drives the transmission shaft 24 to limit rotation, the transmission shaft 24 drives the half gear 25 to limit rotation, the half gear 25 drives the rack plate 26 and the sliding frame 27 to slide back and forth, the sliding frame 27 drives the valve core 28 to move synchronously to control the connection of the water path or the gas path, thereby realizing the adjustment operation of the three-way valve 12.

[0032] When it is necessary to stabilize the air supply pressure, first manually turn the twist cover 37, which drives the adjusting bolt 36 to rotate within a limited range. The adjusting bolt 36 is restricted by the fixing nut 38 and drives the first piston 32 to slide left and right, thereby controlling the pressure release threshold of the return air pipe 31. The high-pressure gas drives the first piston 32 to slide to the right and compresses the spring 35, so that the high-pressure gas can release the pressure through the return air pipe 31 and flow back into the air storage tank 15, thereby stabilizing the control of the air backwash pressure and realizing the pressure stabilization operation of the air supply. The operation ends here.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A backwashing device for a ceramic filter and a construction method thereof, comprising a filter body (11), characterized in that: The bottom front side of the filter body (11) is fixedly connected to a three-way valve (12), the front left side of the three-way valve (12) is fixedly connected to a water inlet pipe (13), the front right side of the three-way valve (12) is fixedly connected to a pressurized air supply pipe (14), the right end of the pressurized air supply pipe (14) is fixedly connected to an air storage tank (15), the top of the three-way valve (12) is fixedly connected to a limit frame (16), the front side of the limit frame (16) is fixedly connected to a transmission box (17), and the inner wall of the transmission box (17) is fixedly connected to a controller (18); An adjusting mechanism (2) is provided inside the transmission box (17), the adjusting mechanism (2) includes a servo motor (21), the bottom of the servo motor (21) is fixedly connected to the top of the transmission box (17), a pressure stabilizing mechanism (3) is provided on the top of the pressurized air supply pipe (14), the pressure stabilizing mechanism (3) includes a return air pipe (31), the left side of the return air pipe (31) is fixedly connected to the left side of the outer wall of the pressurized air supply pipe (14), and the right side of the return air pipe (31) is fixedly connected to the outer wall of the air storage tank (15).

2. The backwashing device of a ceramic filter and the construction method thereof according to claim 1, characterized in that: A transmission worm (22) is fixedly connected to the middle of the bottom of the servo motor (21), the bottom end of the transmission worm (22) is movably connected to the bottom of the inner wall of the transmission box (17), and the right side of the outer wall of the transmission worm (22) is meshedly connected to a transmission worm wheel (23).

3. The backwashing device of a ceramic filter and the construction method thereof according to claim 2, characterized in that: The inner wall of the transmission worm wheel (23) is fixedly connected to a transmission shaft (24), the front end of the transmission shaft (24) is movably connected to the front side of the inner wall of the transmission box (17), and the rear end of the transmission shaft (24) passes through the front side wall of the limit frame (16) and is fixedly connected to a half gear (25).

4. The backwashing device of a ceramic filter and the construction method thereof according to claim 3 are characterized in that: The outer wall of the half gear (25) is meshedly connected with a pair of rack plates (26), the outer wall of the rack plate (26) is fixedly connected with a sliding frame (27), and the lower inner wall of the sliding frame (27) is fixedly connected with a valve core (28), and the valve core (28) is inserted into the interior of the three-way valve (12).

5. The backwashing device of a ceramic filter and the construction method thereof according to claim 1, characterized in that: A first piston (32) is slidably connected to the left side of the inner wall of the air return pipe (31), a telescopic rod (33) is fixedly connected to the right end of the first piston (32), and a second piston (34) is fixedly connected to the right end of the telescopic rod (33).

6. The backwashing device of a ceramic filter and the construction method thereof according to claim 5, characterized in that: A spring (35) is fixedly connected to the outer ring of the telescopic rod (33) on the right side of the first piston (32), and the right end of the spring (35) is fixedly connected to the left side of the second piston (34).

7. The backwashing device of a ceramic filter and the construction method thereof according to claim 5, characterized in that: An adjusting bolt (36) is movably connected to the middle portion of the right side of the second piston (34). The right end of the adjusting bolt (36) passes through the return air pipe (31) and is fixedly connected to a twist cover (37). A fixing nut (38) is provided on the outer wall of the adjusting bolt (36) through a threaded sleeve. The left side of the fixing nut (38) is fixedly connected to the right side of the return air pipe (31).

8. A construction method for a backwash device of a ceramic filter, characterized in that: The backwashing device comprising the ceramic filter according to claim 1 is specifically operated as follows: During use, when the three-way valve (12) needs to be adjusted, the servo motor (21) is first started through the controller (18), the servo motor (21) drives the transmission worm (22) to rotate in a limited position, the transmission worm (22) engages and drives the transmission worm wheel (23) to rotate, the transmission worm wheel (23) drives the transmission shaft (24) to rotate in a limited position, the transmission shaft (24) drives the half gear (25) to rotate in a limited position, the half gear (25) drives the rack plate (26) and the sliding frame (27) to slide back and forth, and the sliding frame (27) drives the valve core (28) to move synchronously to control the connection of the water path or the gas path, thereby realizing the adjustment operation of the three-way valve (12). When it is necessary to stabilize the pressure of the gas supply, first manually rotate the twist cover (37), and the twist cover (37) drives the adjusting bolt (36) to rotate in a limited position. The adjusting bolt (36) is restricted by the fixing nut (38) and drives the first piston (32) to slide left and right, thereby controlling the pressure release threshold of the return gas pipe (31). The high-pressure gas drives the first piston (32) to slide to the right and compresses the (35) spring, so that the high-pressure gas can release the pressure through the return gas pipe (31) and flow back into the gas storage tank (15), thereby stabilizing the pressure of the gas backwash and realizing the pressure stabilization operation of the gas supply. The operation ends here.

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