Automatic cleaning device for ceramic membrane

Abstract

The invention discloses an automatic cleaning device for a ceramic membrane, and particularly relates to the technical field of ceramic membrane cleaning, the automatic cleaning device comprises a water collecting table and three groups of protective covers fixedly arranged above the water collecting table, support frames are fixedly mounted in the protective covers, and the bottoms of the support frames are fixedly connected with the water collecting table; according to the device, the inner holes of the ceramic membrane are soaked through the inner cleaning mechanism, then reaction is promoted through cooperation with shaking, finally, the inner holes of the ceramic membrane are thoroughly cleaned in a high-pressure clean water flushing mode, the outer cleaning mechanism is further arranged to spray a cleaning agent to the outer wall of the ceramic membrane to enable the cleaning agent to react with dirt on the outer side, and then the inner holes of the ceramic membrane are cleaned through the high-pressure clean water flushing mode. The outer side wall of the ceramic membrane is thoroughly cleaned, the inner cleaning mechanism and the outer cleaning mechanism are matched with each other to jointly complete thorough cleaning of the ceramic membrane, the cleaning quality is improved, the ceramic membrane is limited all the time in the whole cleaning process, the ceramic membrane is prevented from being collided during cleaning, and the service life of the ceramic membrane is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic membrane cleaning, and more specifically, to an automatic cleaning device for ceramic membranes. Background Art

[0002] Ceramic membranes are prone to contamination and clogging during long-term use, which causes the membrane permeation flux to gradually decrease, and even makes the membrane unusable, hindering its widespread application in practice. Especially for ceramic membranes used in sewage treatment, contamination and clogging can occur at any time, so the membrane must be cleaned to improve cleaning efficiency and extend membrane life. Membrane cleaning methods can generally be divided into physical methods and chemical methods. However, in actual operation, the cleaning process is relatively cumbersome. During the cleaning process, the ceramic membrane needs to be cleaned manually, which wastes both manpower and time. According to the patent document with publication number CN109529632B, the device is provided with a rotatable ceramic membrane fixing groove so that the ceramic membrane can rotate in the cleaning tank during cleaning, which is more conducive to cleaning the inside and outside of the ceramic membrane, and realizes the automatic operation of ceramic membrane cleaning; however, in the above patent document, since the internal channel of the tubular ceramic membrane is small, pollutants are more likely to accumulate therein and form a dirt layer that is difficult to remove, which is more difficult to clean than the outside of the ceramic membrane. Therefore, it is difficult to thoroughly clean the inner hole of the ceramic membrane by rotating it in the cleaning tank, and during the rotating cleaning process, the ceramic membrane will collide with the inner wall of the fixing groove, which is easy to cause damage to both sides of the ceramic membrane, reducing its service life; At the same time, in order to remove residual cleaning agents and restore membrane flux, the ceramic membrane needs to be rinsed and dried after cleaning. However, in the above documents, the ceramic membrane needs to be taken out before subsequent treatment. It is difficult to rinse it immediately after cleaning to improve the cleaning efficiency. In view of the above technical defects, a solution is now provided. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic cleaning device for a ceramic membrane to solve the technical defects proposed by the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic cleaning device for a ceramic membrane, comprising a water collecting platform and three sets of protective covers fixedly arranged above the water collecting platform, a support frame is fixedly installed inside the protective cover, and the bottom of the support frame is fixedly connected to the water collecting platform, and an internal cleaning mechanism for cleaning the inside of the ceramic membrane is arranged on the outside of the support frame; The inner cleaning mechanism comprises a cylinder connected to the top wall of the protective cover, an upper limit slot is provided on the outer wall of the support frame, an L rod is fixedly connected to the side wall of the extended end of the cylinder, the L rod is slidably matched with the upper limit slot, and a movable plate is slidably provided on the inner wall of the support frame; A regulating component is provided on one side of the cylinder, and the regulating component includes a limit tube fixedly inserted on the top of the protective cover, and a piston column is slidably provided inside the limit tube; The extended end of the cylinder limits the ceramic membrane through a limiting component; An external cleaning mechanism for cleaning the outer wall of the ceramic membrane is arranged in front of the movable plate.

[0005] Furthermore, a second connecting pipe is provided inside the piston column, and a detergent pipe and a clean water pipe are respectively inserted into the side wall of the limiting pipe from top to bottom, and the input ends of the detergent pipe and the clean water pipe are both located outside the protective cover.

[0006] Furthermore, a connecting rod is fixedly provided at the bottom of the piston column, the bottom end of the connecting rod is movably penetrated to the outside of the limiting tube and a transmission plate is fixedly provided, the transmission plate is fixedly connected to the side wall of the protruding end of the cylinder, and a delivery pipe is inserted into the bottom wall of the limiting tube.

[0007] Furthermore, the limiting assembly includes an upper fixed plate fixedly connected to the protruding end of the cylinder, an upper blocking plate is slidably provided on the bottom wall of the upper fixed plate through a limiting column, a thrust spring is provided between the upper fixed plate and the upper blocking plate, and the input end of the upper blocking plate is connected to the delivery pipe through an internal connecting pipe.

[0008] Furthermore, a lower limit groove is provided on the outer wall of the movable plate, a support plate is slidably arranged inside the lower limit groove, one end of the support plate is transmission-matched with the bottom of the L rod, and the other end of the support plate is fixedly connected with a blocking plate.

[0009] Furthermore, a lower fixed plate is slidably provided at the bottom of the blocking plate through a second limiting column, a second thrust spring is provided between the blocking plate and the lower fixed plate, and the lower fixed plate is fixedly connected to the movable plate.

[0010] Furthermore, a sealing ring is arranged above the lower fixed plate, and the sealing ring is in contact with the lower fixed plate. The sealing ring is connected to the movable plate, and two sets of clamping tools for clamping the ceramic membrane are arranged on the outer wall of the movable plate.

[0011] Furthermore, a movable groove is opened on the outer wall of the movable plate, an eccentric wheel is arranged in the movable groove, a driving shaft is connected to the inside of the eccentric wheel, one end of the driving shaft is connected to the water collecting platform through a mounting plate, and a motor is fixedly arranged on the other end of the driving shaft, and the motor is connected to the protective cover.

[0012] Furthermore, the external cleaning mechanism includes an external connecting tube connected to the output end of the conveying tube, the output end of the external connecting tube is connected to a U-shaped connecting tube, multiple cleaning heads are arranged on both sides of the U-shaped connecting tube, and two adjacent cleaning heads are connected through a connecting tube, and the two output ends of the U-shaped connecting tube are respectively connected to the two corresponding cleaning heads.

[0013] Technical effects and advantages of the present invention: 1. The present invention places the ceramic membrane above the sealing ring, seals the bottom of the ceramic membrane through a blocking plate, and then fixes the ceramic membrane through a clamping tool. The cylinder extends downward to a limited position, that is, the bottom of the upper blocking plate seals the top of the ceramic membrane, and the ceramic membrane is limited and fixed to avoid bumping during cleaning, thereby increasing the service life of the ceramic membrane.

[0014] 2. The present invention controls the detergent to not completely fill the inner hole of the ceramic membrane, so that there is space for the detergent to move in the inner hole of the ceramic membrane. The detergent enters the external connecting tube and is sprayed onto the outer wall of the ceramic membrane through a plurality of cleaning heads, so that the detergent reacts with the dirt on the outside of the ceramic membrane to achieve the effect of cleaning the outer wall. The movable plate is controlled to reciprocate on the inner wall of the support frame to make the ceramic membrane shake, so that the detergent inside the ceramic membrane can fully contact and react with its inner hole, and the liquid impact generated by the shaking can improve the cleaning efficiency of the inner hole of the ceramic membrane.

[0015] 3. In the present invention, by controlling the air cylinder to extend to the flushing position, the input end of the connecting pipe 2 is aligned with the output end of the clean water pipe, and the L-rod presses the support plate downward to release the seal under the ceramic membrane. The clean water flushes the inner wall of the ceramic membrane, and the inner hole is first soaked, and then shaken to promote the reaction. Finally, the inner hole of the ceramic membrane is thoroughly cleaned by flushing with high-pressure clean water. At the same time, the clean water flushes the outer wall of the ceramic membrane through the cleaning head, and the detergent reacts in advance to remove scale, and the outer wall of the ceramic membrane is thoroughly cleaned. Together, the ceramic membrane is thoroughly cleaned, the cleaning quality is improved, and the ceramic membrane after flushing with clean water only needs to undergo subsequent drying treatment, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the appearance of the present invention.

[0017] Figure 2 It is a front view of the structure inside the protective cover of the present invention.

[0018] Figure 3 It is a front view of the regulating component in the present invention.

[0019] Figure 4 It is an enlarged view of the local structure of the regulating component in the present invention.

[0020] Figure 5 It is a front view of the limiting assembly in the present invention.

[0021] Figure 6 It is a three-dimensional diagram of the clamping tool and the movable plate in the present invention.

[0022] Figure 7 It is a three-dimensional diagram of the internal and external cleaning mechanism of the present invention.

[0023] The accompanying drawings are marked as follows: 1, water collecting platform; 2, protective cover; 3, external cleaning mechanism; 31, external connecting pipe; 32, U-shaped connecting pipe; 33, cleaning head; 34, connecting pipe 1; 4, collecting port; 5, support frame; 6, internal cleaning mechanism; 61, cylinder; 62, regulating component; 621, limit pipe; 622, piston rod; 623, connecting pipe 2; 624, detergent pipe; 625, clean water pipe; 626, connecting Connecting rod 1; 627, transmission plate 1; 628, conveying pipe; 63, limiting assembly; 631, lower fixed plate; 632, blocking plate; 633, lower limiting groove; 634, supporting plate; 635, sealing ring; 636, upper blocking plate; 637, upper fixed plate; 638, internal connecting pipe; 64, upper limiting groove; 65, L rod; 66, movable plate; 67, movable groove; 68, eccentric wheel; 7, clamping tool. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0025] Embodiment 1: Figure 1-7 As shown, an automatic cleaning device for a ceramic membrane proposed in this embodiment includes a water collecting platform 1, three sets of protective covers 2 are fixedly arranged above the water collecting platform 1, a support frame 5 is fixedly installed inside the protective cover 2, and the bottom of the support frame 5 is fixedly connected to the water collecting platform 1, and an internal cleaning mechanism 6 for cleaning the inside of the ceramic membrane is arranged on the outside of the support frame 5; like Figure 1-6As shown, the internal cleaning mechanism 6 includes a cylinder 61 fixedly connected to the top wall of the protective cover 2, an upper limit groove 64 is provided on the outer wall of the support frame 5, and the upper limit groove 64 is located above the support frame 5. An L rod 65 is fixedly connected to the side wall of the extended end of the cylinder 61, and the L rod 65 slidably cooperates with the upper limit groove 64. A vertically arranged movable plate 66 is slidably connected to the inner wall of the support frame 5, and a movable groove 67 is provided on the outer wall of the movable plate 66, and the movable groove 67 is located below the movable plate 66. An eccentric wheel 68 is provided in the movable groove 67, and a driving shaft is connected to the inside of the eccentric wheel 68. One end of the driving shaft is rotatably connected to a mounting plate 1 through a bearing, and the mounting plate 1 is connected to the water collecting platform 1, and a motor is fixedly provided at the other end of the driving shaft, and the motor is connected to the protective cover 2; The eccentric wheel 68 is rotated by the motor, and the eccentric wheel 68 continuously drives the movable plate 66 to make reciprocating motion on the inner wall of the support frame 5 during the rotation process. In this process, the ceramic membrane can be shaken; like Figure 1-4 As shown, a regulating component 62 is provided on one side of the cylinder 61, and the regulating component 62 includes a limit tube 621 fixedly inserted on the top of the protective cover 2, a piston column 622 is slidably provided inside the limit tube 621, a connecting tube 623 is provided inside the piston column 622, and a cleaning agent tube 624 and a clean water tube 625 are respectively inserted on the side wall of the limit tube 621 from top to bottom, and the input ends of the cleaning agent tube 624 and the clean water tube 625 are both located on the outside of the protective cover 2; It should be noted that the detergent pipe 624 is connected to an external detergent storage device, and the clean water pipe 625 is connected to an external clean water storage device. The detergent pipe 624 and the clean water pipe 625 are both used to transport detergent or clean water through a pump body. like Figure 1-4 As shown in FIG. 6 , a connecting rod 626 is fixedly provided at the bottom of the piston column 622. The bottom end of the connecting rod 626 movably penetrates the outside of the limiting tube 621 and is fixedly provided with a transmission plate 627. The transmission plate 627 is fixedly connected to the side wall of the extended end of the cylinder 61. A delivery pipe 628 is fixedly inserted on the bottom wall of the limiting tube 621. The delivery pipe 628 has a telescopic characteristic. When the cylinder 61 extends downward to a limited position, the ceramic membrane detergent enters the second connecting pipe 623 through the detergent pipe 624, and is then transported to the upper blocking plate 636 and the outer connecting pipe 31 through the delivery pipe 628; when the cylinder 61 extends to the flushing position, the input end of the second connecting pipe 623 is aligned with the output end of the clean water pipe 625, and the clean water is transported to the upper blocking plate 636 and the outer connecting pipe 31 through the delivery pipe 628; like Figure 1-6As shown, the extended end of the cylinder 61 limits the ceramic membrane through the limit assembly 63, and the limit assembly 63 includes an upper fixed plate 637 fixedly connected to the extended end of the cylinder 61, and an upper blocking plate 636 is slidably provided on the bottom wall of the upper fixed plate 637 through a limit column 1, and the input end of the upper blocking plate 636 is connected to the delivery pipe 628 through an internal connecting pipe 638, and a thrust spring 1 is provided between the upper fixed plate 637 and the upper blocking plate 636, and a set of the thrust spring is provided on the outer wall of the limit column 1; It should be noted that a plurality of nozzles are arranged at the bottom of the upper plugging plate 636, and the output end of the nozzle is arranged toward the inner hole of the ceramic membrane, which has the function of filling the inner hole of the ceramic membrane with a cleaning agent or purified water, and simultaneously has the function of sealing the top of the ceramic membrane, which belongs to the prior art; like Figure 1-3 As shown in 5-6, a lower limit groove 633 is further provided on the outer wall of the movable plate 66, and the lower limit groove 633 is located in the middle and lower part of the movable plate 66. A support plate 634 is slidably provided inside the lower limit groove 633, and one end of the support plate 634 is transmission-matched with the bottom of the L rod 65, and the other end of the support plate 634 is fixedly connected with a blocking plate 632, and a lower fixed plate 631 is slidably provided at the bottom of the blocking plate 632 through a second limit column, and the lower fixed plate 631 is fixedly connected with the movable plate 66, and a thrust spring 2 is provided between the blocking plate 632 and the lower fixed plate 631, and the thrust spring 2 is sleeved on the outer wall of the second limit column, and a sealing ring 635 is provided above the lower fixed plate 631, and the sealing ring 635 fits with the lower fixed plate 631, and the sealing ring 635 is connected with the movable plate 66; When the cylinder 61 extends downward to a limited position, the blocking plate 632 seals the bottom of the ceramic membrane, and the bottom of the upper blocking plate 636 seals the top of the ceramic membrane, so that the ceramic membrane is in a sealed state; when the cylinder 61 extends to the flushing position, the support plate 634 drives the blocking plate 632 to move downward, releasing the seal on the bottom of the ceramic membrane; Two sets of clamping fixtures 7 for clamping the ceramic membrane are arranged on the outer wall of the movable plate 66; the clamping fixture 7 is a functional device in the prior art that has the function of clamping the outer wall of the ceramic membrane, and is a prior art that only needs to have the clamping function for the above-mentioned ceramic membrane, and no further elaboration will be made here.

[0026] Embodiment 2: Figure 1-2 As shown in FIG. 7 , an automatic cleaning device for a ceramic membrane proposed in this embodiment is improved on the basis of Embodiment 1, and an external cleaning mechanism 3 for cleaning the outer wall of the ceramic membrane is provided in front of the movable plate 66; like Figure 1-3As shown in , 7, the external cleaning mechanism 3 includes an external connecting pipe 31 connected to the output end of the delivery pipe 628, the output end of the external connecting pipe 31 is connected to a U-shaped connecting pipe 32, and a plurality of cleaning heads 33 are arranged on both sides of the U-shaped connecting pipe 32, and two adjacent cleaning heads 33 are connected through a connecting pipe 1 34, and the two output ends of the U-shaped connecting pipe 32 are respectively connected to the two cleaning heads 33 corresponding thereto; like Figure 1 , 3 -5, the output end of the cleaning head 33 is arranged toward the ceramic membrane to complete the cleaning of the outer wall of the ceramic membrane; like Figure 1 As shown, a collecting port 4 for collecting sewage is provided on the top of the water collecting platform 1, and a drainage pipe is provided at the output end of the water collecting platform 1.

[0027] Combining Example 1 and Example 2, it can be known that the present invention first soaks the inner hole of the ceramic membrane through the internal cleaning mechanism 6, then promotes the reaction by shaking, and finally completes the thorough cleaning of the inner hole of the ceramic membrane through high-pressure clean water flushing. The external cleaning mechanism 3 first sprays the cleaning agent on the outer wall of the ceramic membrane to react with the dirt on the outside, and then thoroughly cleans the outer wall of the ceramic membrane through high-pressure clean water flushing. The internal cleaning mechanism 6 and the external cleaning mechanism 3 cooperate with each other to jointly complete the thorough cleaning of the ceramic membrane, improve the cleaning quality, and limit the ceramic membrane throughout the overall cleaning process to avoid bumping during cleaning, thereby increasing the service life of the ceramic membrane.

[0028] The working process and principle of the present invention are as follows: Step 1: First, place the ceramic membrane on the top of the sealing ring 635, and seal the bottom of the ceramic membrane through the blocking plate 632. Then, fix the ceramic membrane through the clamping fixture 7. The inner wall of the clamping fixture 7 is tightly fitted with the ceramic membrane. The cylinder 61 extends downward to a limited position, that is, the bottom of the upper blocking plate 636 seals the top of the ceramic membrane, and the ceramic membrane is limited and fixed to avoid collision during cleaning. In this process, the transmission plate 1 627 synchronously pulls the connecting rod 1 626 downward, so that the piston column 622 moves downward, so that the input end of the connecting pipe 2 623 is aligned with the output port of the detergent pipe 624; The ceramic membrane cleaning agent enters the second connecting pipe 623 through the cleaning agent pipe 624, and is then transported to the upper blocking plate 636 and the outer connecting pipe 31 respectively through the transport pipe 628. The cleaning agent entering the upper blocking plate 636 enters the inner hole of the ceramic membrane, and the cleaning agent is controlled not to completely fill the inner hole of the ceramic membrane, so that there is a space for the cleaning agent to move in the inner hole of the ceramic membrane. The cleaning agent entering the outer connecting pipe 31 is sprayed onto the outer wall of the ceramic membrane through a plurality of cleaning heads 33, and wets the outer wall of the ceramic membrane, so that the cleaning agent reacts with the dirt on the outer side of the ceramic membrane, thereby achieving the effect of cleaning the outer wall. Subsequently, the eccentric wheel 68 is rotated by the motor, and the movable plate 66 is continuously driven to make reciprocating motion on the inner wall of the support frame 5 during the rotation of the eccentric wheel 68. During this process, the ceramic membrane can be shaken, so that the detergent inside the ceramic membrane can fully contact and react with its inner hole, and the liquid impact generated by the shaking can accelerate the cleaning efficiency of the inner hole of the ceramic membrane; Step 2: After the cleaning agent has finished cleaning the ceramic membrane, the cylinder 61 is controlled to extend to the flushing position, and the clamping fixture 7 is controlled to move so that the inner wall of the clamping fixture 7 is not tightly fitted with the outer wall of the ceramic membrane, so that there is a small gap between the two. During this process, the piston column 622 moves downward to align the input end of the connecting pipe 623 with the output end of the clean water pipe 625. At the same time, the L rod 65 presses the support plate 634 downward, so that the support plate 634 drives the blocking plate 632 to move downward, and the seal under the ceramic membrane is released. The clean water is respectively delivered to the upper blocking plate 636 and the outer connecting pipe 31 through the delivery pipe 628 to flush the inner wall of the ceramic membrane. The inner hole of the ceramic membrane is first soaked and shaken to promote the reaction, and finally the inner hole of the ceramic membrane is thoroughly cleaned by flushing with high-speed clean water. At the same time, clean water flushes the outer wall of the ceramic membrane through the cleaning head 33, and the clean water also flushes the clamping part of the clamping tool 7. Combined with the early reaction cleaning of the detergent, the outer wall of the ceramic membrane is thoroughly cleaned. Through the external cleaning mechanism 3 and the internal cleaning mechanism 6, the ceramic membrane is thoroughly cleaned together to improve the cleaning quality. After being flushed with clean water, the ceramic membrane only needs to undergo subsequent drying treatment, which improves the cleaning efficiency.

[0029] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic cleaning device for a ceramic membrane, comprising a water collecting platform (1) and three sets of protective covers (2) fixedly arranged above the water collecting platform, characterized in that: A support frame (5) is fixedly installed inside the protective cover (2), and the bottom of the support frame (5) is fixedly connected to the water collecting platform (1), and an internal cleaning mechanism (6) for cleaning the inside of the ceramic membrane is arranged on the outside of the support frame (5); The inner cleaning mechanism (6) comprises a cylinder (61) connected to the top wall of the protective cover (2); an upper limit groove (64) is provided on the outer wall of the support frame (5); an L-rod (65) is fixedly connected to the side wall of the extended end of the cylinder (61); the L-rod (65) is slidably matched with the upper limit groove (64); and a movable plate (66) is slidably provided on the inner wall of the support frame (5); A regulating component (62) is provided on one side of the cylinder (61), and the regulating component (62) comprises a position limiting tube (621) fixedly inserted on the top of the protective cover (2), and a piston rod (622) is slidably provided inside the position limiting tube (621); The extended end of the cylinder (61) limits the ceramic membrane through a limiting assembly (63); An external cleaning mechanism (3) for cleaning the outer wall of the ceramic membrane is arranged in front of the movable plate (66).

2. The automatic cleaning device for a ceramic membrane according to claim 1, characterized in that: A second connecting pipe (623) is provided inside the piston column (622), and a cleaning agent pipe (624) and a clean water pipe (625) are respectively inserted into the side wall of the limit pipe (621) from top to bottom, and the input ends of the cleaning agent pipe (624) and the clean water pipe (625) are both located outside the protective cover (2).

3. The automatic cleaning device for a ceramic membrane according to claim 2, characterized in that: A connecting rod (626) is fixedly provided at the bottom of the piston column (622); the bottom end of the connecting rod (626) is movably extended to the outside of the limiting tube (621) and is fixedly provided with a transmission plate (627); the transmission plate (627) is fixedly connected to the side wall of the protruding end of the cylinder (61); and a conveying pipe (628) is inserted into the bottom wall of the limiting tube (621).

4. The automatic cleaning device for a ceramic membrane according to claim 3, characterized in that: The limiting assembly (63) comprises an upper fixing plate (637) fixedly connected to the extended end of the cylinder (61); an upper blocking plate (636) is slidably arranged on the bottom wall of the upper fixing plate (637) via a limiting column; a thrust spring is arranged between the upper fixing plate (637) and the upper blocking plate (636); and the input end of the upper blocking plate (636) is connected to the delivery pipe (628) via an internal connecting pipe (638).

5. The automatic cleaning device for a ceramic membrane according to claim 4, characterized in that: A lower limit groove (633) is also provided on the outer wall of the movable plate (66), a support plate (634) is slidably provided inside the lower limit groove (633), one end of the support plate (634) is transmission-matched with the bottom of the L-rod (65), and the other end of the support plate (634) is fixedly connected to a blocking plate (632).

6. The automatic cleaning device for a ceramic membrane according to claim 5, characterized in that: A lower fixed plate (631) is slidably arranged at the bottom of the blocking plate (632) via a second limiting column, a second thrust spring is arranged between the blocking plate (632) and the lower fixed plate (631), and the lower fixed plate (631) is fixedly connected to the movable plate (66).

7. The automatic cleaning device for a ceramic membrane according to claim 6, characterized in that: A sealing ring (635) is provided above the lower fixed plate (631), and the sealing ring (635) is in contact with the lower fixed plate (631). The sealing ring (635) is connected to a movable plate (66), and two sets of clamping fixtures (7) for clamping the ceramic membrane are provided on the outer wall of the movable plate (66).

8. The automatic cleaning device for a ceramic membrane according to claim 1, characterized in that: A movable groove (67) is provided on the outer wall of the movable plate (66), an eccentric wheel (68) is arranged in the movable groove (67), a driving shaft is connected to the interior of the eccentric wheel (68), one end of the driving shaft is connected to the water collecting platform (1) via a mounting plate 1, and a motor is fixedly arranged at the other end of the driving shaft, and the motor is connected to the protective cover (2).

9. The automatic cleaning device for a ceramic membrane according to claim 3, characterized in that: The external cleaning mechanism (3) comprises an external connecting tube (31) connected to the output end of the delivery tube (628); the output end of the external connecting tube (31) is connected to a U-shaped connecting tube (32); a plurality of cleaning heads (33) are provided on both sides of the U-shaped connecting tube (32); two adjacent cleaning heads (33) are connected via a connecting tube 1 (34); and the two output ends of the U-shaped connecting tube (32) are respectively connected to the two cleaning heads (33) corresponding thereto.

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