Wet-process spray sand system

Abstract

The invention discloses a wet sandblast system which comprises a mortar tank and a sandblasting injector, wherein the mortar tank is provided with a sandblasting pump which sends mortar to the sandblasting injector; the mortar injected by the sandblasting injector flows into a recovery warehouse the outlet of which is communicated with the mortar tank; the recovery warehouse is provided with a cyclone water-sand separator and a spray header; a mortar inlet of the cyclone water-sand separator is communicated with the mortar tank; the mortar tank is provided with a second sandblasting pump which sends the mortar to the cyclone water-sand separator; a sand outlet of the cyclone water-sand separator is communicated with the mortar tank; and a water outlet of the cyclone water-sand separator is communicated with the spray header which is arranged on the upper part of the recovery warehouse. The wet sandblast system has the advantages that a closed loop system is adopted so that waste water in the system can be used repeatedly after processing, and the environmental pollution is reduced; meanwhile, the mortar stuck on the surface of a workpiece is washed away and enters the mortar tank through the recovery warehouse, thereby repeatedly using the mortar, avoiding the waste of he mortar, and reducing the production cost.

Description

technical field [0001] The invention relates to a sandblasting system for treating metal surfaces, in particular to a wet sandblasting system for treating metal surfaces. Background technique [0002] The anti-corrosion spraying process usually requires the metal surface to be treated. At present, there are basically two forms in China; one way is to use dry sandblasting, but dry sandblasting has the disadvantages of polluting the environment, endangering the health of workers, and unreliable coating performance. [0003] Another method is wet sand blasting. The wet sand blasting system mainly includes an abrasive supply system, an injection system and a high-pressure water system. The abrasive supply system includes a mortar tank, an abrasive bin, a precision feeding device and a recovery bin. The feeding device supplies sand to the mortar tank. There is a sandblasting pump on the mortar tank, which sends the mortar in the mortar tank to the sandblasting jet, which is set ...

AI Technical Summary

Problems solved by technology

However, there are also some problems in this wet sand blasting method, because the high-pressure water system is an independent part. After washing the mortar adhered to the surface of the processed workpiece, a large amount of waste water and sand will be discharged on the spot, which greatly wastes water resources, seriously pollute the environment, and at the same time, the system wastes sand and increases production costs

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