Pressure sand blasting device for micro-powder sand

Abstract

The invention discloses a pressure sand blasting device for micro-powder sand. The pressure sand blasting device comprises a pressure tank containing sand and a sand blasting pipe. The pressure sand blasting device for the micro-powder sand further comprises a siphon vertically arranged in the pressure tank. The siphon upwards penetrates the pressure tank to be connected with the sand blasting pipe and downwards stretches to the bottom of the pressure tank. A jet flow air nozzle used for jetting compressed gas is arranged at the bottom of the pressure tank. The jet flow air nozzle stretches in a lower siphon opening of the siphon, and a gap exists between the jet flow air nozzle and the lower siphon opening of the siphon. Compressed gas is jet into the siphon through the jet flow air nozzle, and therefore jet flow dynamic pressure is formed at the lower siphon opening of the siphon so as to drive the sand in the pressure tank to enter the siphon and be jet out upwards through the sand blasting pipe. According to the pressure sand blasting device for micro-powder sand, an existing sand outlet valve assembly is replaced with the siphon, the structure is simplified, the manufacturing cost is greatly reduced, manufacturing and maintaining are convenient, sand discharging is continuous and stable, and the working efficiency is improved; and in addition, the sand inlet amount can be conveniently adjusted, and the production cost is reduced.

Description

technical field [0001] The invention belongs to pressurized sandblasting technology, and in particular relates to a pressure sandblasting device for micropowder sand materials, which is especially suitable for micropowder sand materials with a particle size of 60-300 mesh. Background technique [0002] The working principle of the pressurized sand blasting device is: with compressed air as the driving force, through the working pressure established by the compressed air in the pressure tank, the sand material is pressed into the sand blast pipe through the sand outlet valve and ejected through the spray gun, and sprayed to the processed surface. The surface achieves the expected processing purpose. For pressurized blasting equipment, compressed air is also the acceleration force of the jet. [0003] Such as figure 1 As shown, the existing pressurized sandblasting device is mainly composed of a pressure tank 1, a gas transfer joint 2, an air inlet valve 3, a sand outlet val...

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Problems solved by technology

[0007] The object of the present invention is to provide a micropowder sand material pressure sand blasting device with simple structure, low manufacturing cost, convenient and safe use, easy maintenance, continuous and stable sand production, and greatly improved work efficiency, which can solve the problems caused by micropowder sand material bridging. The problem of broken sand resulting in discontinuous sandblasting

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