Shot-blasting device for automatically recycling steel shots and metal surface processor using same

Abstract

The invention relates to a shot-blasting device for automatically recycling steel shots and a metal surface processor using the same. The shot-blasting device is characterized by comprising a shot-blasting impeller and a semicircular top-sealed box which encloses the shot-blasting impeller, wherein the side wall of the box is an upright wall; a shot-blasting window is arranged at the bottom of the box; a shot-returning channel which is connected to a feeding hopper is arranged on the upper part on one side of the box corresponding to an upward rotating direction of the shot-blasting impeller; the feeding hopper is connected to the feeding port of the box through a shot-supplying valve; and the connecting port of a dust catcher is arranged on the feeding hopper. The metal surface processor is characterized in that a control box is arranged on the basis of the shot-blasting device; a dust catcher, a driving wheel, a driven wheel, a shot-blasting impeller driving motor, a walking motor for the driving motor and a dust-removing fan are all connected to the control box; and the driving wheel and the driven wheel are controlled by a height adjusting mechanism. The shot-blasting device and the metal surface processor provided by the invention have the advantages that the steel shots are automatically recycled in a closed loop during a process of processing the inner surface of a tank, thereby achieving the purposes of increasing the processing quality, promoting the production efficiency, reducing the cost, purifying environment and protecting health of operating personnel.

Description

technical field [0001] The invention relates to a device for metal surface treatment using a shot blasting device, in particular to a shot blasting device for automatically recovering steel shots and a metal surface treatment machine using the device. Background technique [0002] In the equipment manufacturing industry, some large-scale cylindrical structures, such as wind power generation towers, large storage tanks in the petrochemical industry, and large-scale pipelines used in pipeline engineering, etc., need to be treated on the inner and outer surfaces. Remove and form the required surface roughness before coating. But at present, due to its specific treatment conditions and environment on the inner surface of the cylinder, the method used for its treatment is still manual open operation. The high-pressure gas generated by the high-power air compressor will output the steel shot from the storage barrel to the spray gun. Shot blast the metal surface with a spray gun. ...

AI Technical Summary

Problems solved by technology

Due to the use of a high-power pressurized machine, this operation method consumes a lot of energy, and a large amount of dust will be generated during the shot blasting process, causing serious environmental pollution. Workers in this environment are prone to pneumoconiosis, and the shot blasting is scattered. The ground cannot be recycled, resulting in huge waste, increased production costs, low production efficiency, and uneven surface treatment

The highest treatment level can only reach level 2.5 of the national standard GB8923-88 "Steel surface corrosion level and rust removal level before painting"

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