Coating filtering device with alarm function

Abstract

The invention relates to a coating filtering device with alarm function. A cylindrical shell with an inner ring welded at the lower part of the inner wall is in threaded connection with a groove-shaped end cover, a filter screen support with a filter screen is welded on an underpan of the end cover, the filter screen is tightly compressed at the lower part of the inner ring of the shell by a circular elastomer mounted between the shell and the end cover, and a pressure sensor connected with an external alarm is mounted on the shell. The height of the shell and the diameter size of a cylinder are changed to adjust an effective filter area and suit the requirements for the production of coating steel plates; the internally arranged filter screen has a large surface area so that the upper part can still filter coatings even if impurities are piled at sides; and the pressure sensor drives the alarm to act when pressure increases so as to solve the problem in time, avoid a coating flying phenomenon because of the crack of the filter screen, overcome a flooding phenomenon generated in lacquer trays in the production process of the coating steel plates and improve the surface quality of coating plates.

Description

technical field

[0001] The invention belongs to the field of coating and plating processing equipment for cold-rolled steel strips, in particular to a device for filtering color paint used in cold-rolled coated steel plates. Background technique

[0002] In the production process of cold-rolled color-coated steel sheets, the paint is directly poured into the paint pan through the paint supply pump from the material bucket through the pipeline. The paint pan has an overflow port, and a part of the paint is transferred to the surface of the running strip by the coating roller. The other part flows back into the bucket through the overflow pipe through the overflow port, and the reciprocating cycle constitutes the paint circulation system. There are many types of coatings used for color-coated steel sheets. Common ones include fluorocarbon coatings, ordinary polyester coatings, high-durability polyester coatings, and silicon-modified coatings. The thinners and solvents used in ...

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