Anti-corrosion treatment method for water baffle of plate-and-frame filter press

Abstract

The invention discloses an anti-corrosion treatment method for a water baffle of a plate-and-frame filter press, a plurality of plastic layers are sprayed on the surface of the water baffle of the plate-and-frame filter press to form a protective layer, and sewage leaked by filter pressing is isolated by the plastic layers when flowing through the water baffle in the use process, so that corrosion treatment is carried out. The water baffle of the plate-and-frame filter press is subjected to anti-corrosion treatment, so that the service life of the water baffle is prolonged.

Description

Technical Field

[0001] The invention relates to the field of anti-corrosion, and in particular to an anti-corrosion treatment method for a water retaining plate of a plate and frame filter press. Background Art

[0002] The plate and frame filter press is a device for compressing and dehydrating the sludge settled in sewage treatment. When the filter plate is in a tight state during operation, the water retaining plate serves to catch the leaked filtrate under the filter press to prevent the filtrate from entering the dry mud cake after the filter press and causing pollution. The water retaining plate is made of carbon steel thin plate, which is prone to rust and rot after long-term use, affecting the water retaining effect.

[0003] Therefore, it is necessary to develop targeted anti-corrosion treatment methods for the water retaining plate of the plate and frame filter press to prevent rust and decay. Summary of the invention

[0004] Purpose of the invention: In view of the shortcomings and defects of the prior art, the present invention provides a method for anti-corrosion treatment of the water retaining plate of a plate and frame filter press, which performs anti-corrosion treatment on the water retaining plate of the plate and frame filter press to extend the service life of the water retaining plate.

[0005] Technical solution: The present invention provides a method for anti-corrosion treatment of a water baffle of a plate and frame filter press, which is characterized in that: a plurality of layers of plastic are sprayed on the surface of the water baffle of the plate and frame filter press to form a protective layer, and sewage leaked from the filter press during use is isolated by the plastic layer when flowing through the water baffle to perform corrosion treatment.

[0006] Among them, 1-3 layers of plastic are sprayed on the surface of the water retaining plate of the plate and frame filter press.

[0007] Among them, two layers of plastic are sprayed on the surface of the water retaining plate of the plate and frame filter press.

[0008] Among them, the water retaining plate of the plate and frame filter press is derusted before plastic spraying.

[0009] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: the present invention performs anti-corrosion treatment on the water retaining plate of the plate and frame filter press to extend the service life of the water retaining plate, avoids secondary pollution of the filtered mud cake caused by leakage, and this method is simple to process and manufacture, and reduces maintenance costs after treatment. DETAILED DESCRIPTION

[0010] The technical solution of the present invention is further described below in conjunction with specific implementation methods.

[0011] The anti-corrosion treatment method for the water baffle of the plate-frame filter press of the present invention sprays several layers of plastic on the surface of the water baffle of the plate-frame filter press to form a protective layer. When the sewage leaked from the filter press flows through the water baffle during use, it is isolated by the plastic layer and subjected to corrosion treatment. Among them, 1-3 layers of plastic are sprayed on the surface of the water baffle of the plate-frame filter press; preferably, 2 layers of plastic are sprayed on the surface of the water baffle of the plate-frame filter press. Before the plastic is sprayed, the water baffle of the plate-frame filter press is subjected to rust removal treatment, so that the water baffle will not rust, which will greatly extend the service life of the water baffle.

[0012] The present invention performs anti-corrosion treatment on the water retaining plate of the plate and frame filter press to extend the service life of the water retaining plate and avoids secondary pollution of the filtered mud cake caused by liquid leakage. The method is simple to process and manufacture, and reduces maintenance costs after treatment.

Claims

1. A method for anti-corrosion treatment of a water retaining plate of a plate and frame filter press, characterized in that: Several layers of plastic are sprayed on the surface of the water retaining plate of the plate and frame filter press to form a protective layer. During use, the sewage leaked from the filter press is isolated by the plastic layer when it flows through the water retaining plate and is treated for corrosion.

2. The anti-corrosion treatment method for the water retaining plate of the plate and frame filter press according to claim 1, characterized in that: Spray 1-3 layers of plastic on the surface of the water retaining plate of the plate and frame filter press.

3. The anti-corrosion treatment method for the water retaining plate of the plate and frame filter press according to claim 2, characterized in that: Spray 2 layers of plastic on the surface of the water retaining plate of the plate and frame filter press.

4. The anti-corrosion treatment method for the water retaining plate of a plate and frame filter press according to claim 1, characterized in that: Before plastic spraying, the water retaining plate of the plate and frame filter press should be derusted.