Dry abrasive feeding device

Abstract

The invention belongs to the technical field of abrasive jet flow, and particularly relates to a dry abrasive feeding device. The dry abrasive feeding device comprises a sand adding box and a transition box. The transition box is arranged on the lower side of an abrasive outlet of the sand adding box. The dry abrasive feeding device further comprises a second outlet control mechanism which is arranged at a discharging outlet of the transition box and has the block-cleaning function. According to the dry abrasive feeding device, the transition box and the second outlet control mechanism are arranged and matched with each other, and thus the problems that dry abrasive conveying and feeding are unstable, blocking can happen easily and concentration is uneven in the surface pretreatment protection technology of the abrasive jet flow are solved successfully. Moreover, all the functions can achieve remote control, and due to the original pressure conveying technology and transition box design, abrasive feeding stability and evenness are guaranteed. An abrasive feeding pipeline can further achieve the self-dredging and anti-clogging function, and thus a traditional conveying mode and technology can be replaced.

Description

technical field [0001] The invention belongs to the field of abrasive jet technology, and in particular relates to a dry abrasive feeding device. Background technique [0002] Abrasives are an indispensable working medium for the abrasive jet surface pretreatment process. The traditional way of supplying dry abrasives is to install a sand valve and a sand outlet directly under the sand box. The sand suction pipe is directly connected to the sand outlet. Due to the difference between the beginning and the end of the box material level and the change of the resistance of the sand suction pipeline, there are often disadvantages such as uneven sand supply, easy blockage of the outlet, and difficult maintenance of the system, which makes the abrasive jet surface pretreatment process always have uneven operation effects and difficult maintenance. defect. Contents of the invention [0003] According to the problems existing in the prior art, the present invention provides a set ...

AI Technical Summary

Problems solved by technology

[0002] Abrasives are an indispensable working medium for the abrasive jet surface pretreatment process. The traditional way of supplying dry abrasives is to install a sand valve and a sand outlet directly under the sand box. The sand suction pipe is directly connected to the sand outlet. Due to the difference between the beginning and the end of the box material level and the change of the resistance of the sand suction pipeline, there are often disadvantages such as uneven sand supply, easy blockage of the outlet, and difficult maintenance of the system, which makes the abrasive jet surface pretreatment process always have uneven operation effects and difficult maintenance. defect

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