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Several important working parts of sandblasting room

Author: admin Source: This station Time: 15:10, October 7, 2017
Closing valve is the core control element of sandblasting room. When the sand blasting system works, the sand material is required to be continuously circulated. When the sand storage bucket is required to drop sand into the sandblasting host, the pressure relief valve needs to release the pressure in advance. When the combined valve is used to relieve the pressure, the dusty air will not enter the valve. However, due to the dust air entering into the ordinary solenoid valve during pressure relief, the wear is very fast. The combination valve can greatly improve the stability of sand blasting operation and reduce the failure rate. The spray gun (φ 0.7 - φ 12mm, optional size) adopts supersonic high-speed spray gun. It has a venturi shaped nozzle. When the air flow enters the contraction section of the high-speed sandblasting gun, it starts to accelerate until the sound speed; When it reaches the straight section of venturi, the velocity of air flow is stable at sonic speed. When the airflow reaches the expansion section of venturi, it continues to accelerate to reach supersonic speed. In the supersonic stage, the air flow expands rapidly, and the nozzle sucks a large amount of auxiliary air from the secondary air hole distributed around the circumference, thus further accelerating the sand material. Compared with the ordinary sandblasting gun, this kind of sand blasting gun has the advantages of fast sand blasting speed, high working efficiency (up to 30m2 / h), small recoil force and labor-saving operation. Sand valve is the control element for opening and closing of sand blasting operation. The sand blasting valve produced by our company with the technology of Japan's Shinto company can adjust the size of sand flow steplessly, and has the characteristics of reliable quality, convenient adjustment and simple maintenance. The opening of the sand valve is controlled by pneumatic. When there is air pressure signal at the control port, the piston of the sand valve drives the valve stem to jack up, and the sand valve opens. By adjusting the position of the adjusting cap, the opening amount of the sand valve can be adjusted, so as to control the sand flow. In the sand valve, the valve stem and valve sleeve in contact with sand material are made of hard alloy tungsten carbide, which improves the service life of sand valve. In order to facilitate the maintenance of the sand valve, a sand stop valve is installed between the sand valve and the tank body, which can avoid discharging all the sand in the sand tank when removing the sand valve, and reduce the maintenance workload. Several important working parts of sandblasting room