Nitric acid cleaning device for ceramic filter plate

Abstract

The utility model discloses a nitric acid cleaning device for a ceramic filter plate, which relates to the technical field of ceramic filter plate cleaning, and comprises a cleaning tank, a sealing cover and a storage box, the sealing cover is matched with the upper port of the cleaning tank, the sealing cover is connected with an air suction pipe, the air suction pipe is connected with an exhaust fan, and a support rod is fixedly arranged in the cleaning tank. The bottom of the storage box is connected with the cleaning tank through a nitric acid pipe, the nitric acid pipe is connected with a nitric acid pump, a piston partition plate is movably arranged in the storage box, air holes are formed in the top of the storage box, and a plurality of air distribution pipes are fixedly arranged at the bottom of the cleaning tank and communicated with the outside of the cleaning tank. A closed space can be formed by buckling the sealing cover on the cleaning tank, field workers are prevented from touching nitric acid, meanwhile, gas volatilized by the nitric acid can be prevented from diffusing outwards and hurting the field workers, and external air can be sucked into the cleaning tank and sucked out through the air suction pipe by starting the exhaust fan.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning ceramic filter plates, in particular to a nitric acid cleaning device for ceramic filter plates. Background Art

[0002] Ceramic filter is used for vacuum dehydration and filtration of materials. Ceramic filter plate is one of the key components related to filtration efficiency. In order to ensure filtration efficiency, the ceramic filter plate needs to be cleaned after long-term use. During cleaning, about 40% nitric acid mixed with process water is needed to react with impurities on the ceramic plate to achieve the purpose of cleaning;

[0003] For example, in the utility model patent with announcement number CN204233872U, a cleaning device for ceramic plates is disclosed, including a cleaning tank, a nitric acid preparation tank, and a nitric acid cleaning liquid pump. The bottom of the cleaning tank is connected to an air pipe, and there is an interface on the air pipe. The air pipe is connected to an air cabinet, and the nitric acid preparation tank is connected to a nitric acid cleaning liquid pump, and the nitric acid cleaning liquid pump is connected to the cleaning tank;

[0004] However, nitric acid is a corrosive liquid. When workers come into contact with nitric acid, it is easy to cause harm to the human body. At the same time, it will also volatilize gases that are harmful to the human body. The existing cleaning equipment has poor sealing performance and cannot collect the volatilized gases, which does not meet existing needs. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a nitric acid cleaning device for a ceramic filter plate, which solves the technical problem that the prior device has poor sealing performance and is likely to affect the health of workers.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a nitric acid cleaning device for ceramic filter plates, comprising a cleaning tank, a sealing cover, and a storage box, the sealing cover matches the upper port of the cleaning tank, the sealing cover is connected to an air intake pipe, the air intake pipe is connected to an exhaust fan, a support rod is fixedly arranged in the cleaning tank, the bottom of the storage box is connected to the cleaning tank through a nitric acid pipe, the nitric acid pipe is connected to a nitric acid pump, a piston partition is movably arranged in the storage box, an air hole is opened on the top of the storage box, a plurality of air distribution pipes are fixedly arranged at the bottom of the cleaning tank, and the air distribution pipes are communicated with the outside of the cleaning tank.

[0007] Preferably, one ends of several of the air distribution pipes extend to the outside of the cleaning tank and are commonly connected to a connecting pipe, one end of the connecting pipe is connected to a vertical pipe, and the height of the upper port of the vertical pipe is not lower than the upper port of the cleaning tank.

[0008] Preferably, a one-way valve is installed at the bottom of the vertical pipe.

[0009] Preferably, the bottom of the storage box is a bucket-shaped structure.

[0010] Preferably, a plurality of partition rods are fixedly arranged on the support rod.

[0011] Preferably, a stepped groove is provided on the inner side of the lower port of the sealing cover, and the stepped groove matches the upper port of the cleaning tank.

[0012] Preferably, a telescopic rod is fixedly provided on the outside of the cleaning tank, and the sealing cover is fixed on the telescopic end of the telescopic rod.

[0013] Beneficial Effects

[0014] The utility model provides a nitric acid cleaning device for a ceramic filter plate, which has the following beneficial effects: the device can form a closed space by buckling a sealing cover on a cleaning tank, thereby preventing on-site workers from touching the nitric acid, and at the same time preventing the volatile gas of the nitric acid from diffusing outward and causing harm to the on-site workers; starting the exhaust fan can suck the outside air into the cleaning tank and suck it out through the suction pipe, thereby ensuring that the volatile gas of the nitric acid in the cleaning tank can be discharged in time; after cleaning is completed, the nitric acid in the cleaning tank can be pumped into a storage box for storage by a nitric acid pump, thereby preventing the nitric acid from volatilizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main internal structure diagram of the utility model;

[0016] Figure 2 It is the right view of the utility model.

[0017] In the figure: 1. cleaning tank; 2. sealing cover; 3. storage box; 4. support rod; 5. telescopic rod; 6. suction pipe; 7. exhaust fan; 8. air distribution pipe; 9. connecting pipe; 10. vertical pipe; 11. one-way valve; 12. nitric acid pipe; 13. nitric acid pump; 14. piston partition; 15. air hole; 16. dividing rod; 17. stepped groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-2The utility model provides a technical solution: a nitric acid cleaning device for a ceramic filter plate, comprising a cleaning tank 1, a sealing cover 2, and a storage box 3. The sealing cover 2 matches the upper port of the cleaning tank 1, and the upper port of the cleaning tank 1 can be closed by the sealing cover 2. The sealing cover 2 is connected to an air intake pipe 6 for sucking out volatile gases in the cleaning tank 1, and the air intake pipe 6 is connected to an exhaust fan 7. A supporting rod 4 is fixedly arranged in the cleaning tank 1 for placing a ceramic filter plate. The bottom of the storage box 3 is connected to the cleaning tank 1 through a nitric acid pipe 12, and a nitric acid pump 13 is connected to the nitric acid pipe 12. The nitric acid pump 13 can pump nitric acid into the storage box 3 or the cleaning tank 1 for storage. A piston partition 14 is movably arranged in the box 3. When nitric acid is injected into the storage box 3 through the nitric acid pump 13, the piston partition 14 will be pushed up. The partition 14 can make the nitric acid in a closed space to prevent the nitric acid from directly contacting with the air and avoiding the volatilization of nitric acid. An air hole 15 is opened on the top of the storage box 3 to balance the air pressure above the piston partition 14 when the piston partition 14 moves. A plurality of air distribution pipes 8 are fixedly arranged at the bottom of the cleaning tank 1. The air distribution pipes 8 are connected to the outside of the cleaning tank 1. When the exhaust fan 7 is started, negative pressure is formed in the cleaning tank 1, and the external air will enter the nitric acid through the air distribution pipes 8. The nitric acid can be stirred by the bubbles to improve the cleaning effect.

[0020] As an embodiment of the utility model, one end of a plurality of gas distribution pipes 8 extends to the outside of the cleaning tank 1 and is commonly connected to a connecting pipe 9, one end of the connecting pipe 9 is connected to a vertical pipe 10, and the height of the upper port of the vertical pipe 10 is not lower than the upper port of the cleaning tank 1. By providing the vertical pipe 10, nitric acid overflow can be prevented.

[0021] As an embodiment of the utility model, a one-way valve 11 is installed at the bottom of the vertical pipe 10 to prevent the gas in the cleaning tank 1 from escaping through the vertical pipe 10 after the nitric acid in the cleaning tank 1 is emptied.

[0022] As an embodiment of the present utility model, the bottom of the storage box 3 is a bucket-shaped structure.

[0023] As an embodiment of the utility model, a plurality of partition rods 16 are fixedly provided on the support rod 4 to facilitate separation of a plurality of ceramic filter plates.

[0024] As an embodiment of the utility model, a stepped groove 17 is provided inside the lower port of the sealing cover 2 , and the stepped groove 17 matches the upper port of the cleaning tank 1 , thereby improving the sealing performance between the sealing cover 2 and the cleaning tank 1 .

[0025] As an embodiment of the utility model, a telescopic rod 5 is fixedly provided on the outside of the cleaning tank 1. The telescopic rod 5 can be an electric telescopic rod. The sealing cover 2 is fixed on the telescopic end of the telescopic rod 5 to facilitate opening the sealing cover 2.

[0026] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0027] The working principle and use process of the utility model are as follows: when in use, the sealing cover 2 is lifted by the telescopic rod 5, the ceramic filter plate is placed on the supporting rod 4, and several ceramic filter plates are separated by the dividing rod 16. After the placement is completed, the sealing cover 2 is buckled on the cleaning tank 1 to form a closed space, and the nitric acid pump 13 is started to inject the nitric acid in the storage box 3 into the cleaning tank 1. The exhaust fan 7 is started to suck the external air into the cleaning tank 1 through the vertical pipe 10, the connecting pipe 9, and the air distribution pipe 8, and the nitric acid is stirred by bubbles. Then the gas in the cleaning tank 1 is sucked out through the suction pipe 6. After cleaning, the nitric acid in the cleaning tank 1 is pumped to the storage box 3 for storage by the nitric acid pump 13 to prevent the nitric acid from volatilizing. After opening the sealing cover 2, the ceramic filter plate can be taken out.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nitric acid cleaning device for a ceramic filter plate, characterized in that: The invention comprises a cleaning tank (1), a sealing cover (2), and a storage box (3), wherein the sealing cover (2) matches the upper port of the cleaning tank (1), the sealing cover (2) is connected to an air intake pipe (6), the air intake pipe (6) is connected to an exhaust fan (7), a support rod (4) is fixedly arranged in the cleaning tank (1), the bottom of the storage box (3) is connected to the cleaning tank (1) through a nitric acid pipe (12), the nitric acid pipe (12) is connected to a nitric acid pump (13), a piston partition (14) is movably arranged in the storage box (3), an air hole (15) is opened on the top of the storage box (3), and a plurality of air distribution pipes (8) are fixedly arranged at the bottom of the cleaning tank (1), and the air distribution pipes (8) are connected to the outside of the cleaning tank (1).

2. A nitric acid cleaning device for a ceramic filter plate according to claim 1, characterized in that: One end of a plurality of the air distribution pipes (8) extends to the outside of the cleaning tank (1) and is commonly connected to a connecting pipe (9), one end of the connecting pipe (9) is connected to a vertical pipe (10), and the height of the upper end of the vertical pipe (10) is not lower than the upper end of the cleaning tank (1).

3. A nitric acid cleaning device for a ceramic filter plate according to claim 2, characterized in that: A one-way valve (11) is installed at the bottom of the vertical pipe (10).

4. A nitric acid cleaning device for a ceramic filter plate according to claim 1, characterized in that: The bottom of the storage box (3) is a bucket-shaped structure.

5. A nitric acid cleaning device for a ceramic filter plate according to claim 1, characterized in that: A plurality of partition rods (16) are fixedly arranged on the support rod (4).

6. A nitric acid cleaning device for a ceramic filter plate according to claim 1, characterized in that: A stepped groove (17) is provided on the inner side of the lower port of the sealing cover (2), and the stepped groove (17) matches the upper port of the cleaning tank (1).

7. A nitric acid cleaning device for a ceramic filter plate according to claim 1, characterized in that: A telescopic rod (5) is fixedly arranged on the outside of the cleaning tank (1), and the sealing cover (2) is fixed on the telescopic end of the telescopic rod (5).

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