A self-priming emptying device for powder tanks for thermal spraying

Abstract

The invention relates to a self-suction emptying device of a powder tank for thermal spraying, which comprises a tank body, wherein the outer diameter of the tank body is gradually reduced from top to bottom; the outer side wall of the tank body is matched with the inner space of the powder tank; through holes are uniformly distributed in the outer side wall of the tank body; the upper edge of the tank body is provided with a circle of turnover part which is turnover outwards; the upper end face of the tank body is provided with a circle of outer snap ring; an inner cylinder is arranged at the center in the tank body; a plurality of vertically-arranged baffle plates are uniformly arranged on the outer side wall of the tank body, and the upper end of the tank body is provided with a top cover. The lower end of the inner cylinder is connected with the lower end of the tank body into a whole; a fan is arranged at the middle part of the inner cylinder, and the upper end of the inner cylinder is provided with an inner snap ring; the upper ends of the baffle plates are respectively connected onto the turnover part. The device, provided by the invention, which is quick and thorough in cleaning and capable of collecting powder for reusing is provided for powder tanks which are large in upper ends and small in lower ends and are difficult to clean and high in requirement on cleaning; the cleaning effect is improved, and much convenience is provided for a user.

Description

technical field [0001] The invention relates to the technical field of thermal spraying equipment, in particular to a self-priming emptying device for a powder tank for thermal spraying. Background technique [0002] Thermal spraying refers to a series of processes in which fine and dispersed metallic or non-metallic coating materials are deposited on the surface of a prepared substrate in a molten or semi-molten state to form a spray deposition layer. It uses a certain heat source (such as electric arc, plasma spraying or combustion flame, etc.) to heat powdery or filamentous metal or non-metallic materials to a molten or semi-molten state, and then sprays them at a certain speed with the aid of the flame itself or compressed air. It is a technique of depositing onto the pretreated substrate surface to form a surface coating with various functions. [0003] The raw materials of thermal spraying are in different forms such as powder, wire, tape and rod, among which powder ...

AI Technical Summary

Problems solved by technology

[0004] After one spraying, the powder often needs to be replaced for the next spraying, and the feeding tank is wide at the top and narrow at the bottom, it is easy to feed and difficult to discharge, and it is difficult to clean it by hand. After adding new powder, the mixed powder is due to the ratio Improper quality problems are likely to occur, affecting the spraying effect and reducing the coating quality, and cleaning with a vacuum cleaner will lead to waste of residual powder

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