Abrasive filling device

Abstract

The invention discloses an abrasive filling device, and relates to the field of abrasive water jet cutting. The device comprises an abrasive tank arranged to be sealed, a feeding device and a drivingdevice; the abrasive tank is internally provided with a partition plate which divides a cavity of the abrasive tank into a zero pressure cavity and an under-pressure cavity; the feeding device is fixed to the partition plate, one part of the feeding device is located in the zero pressure cavity, and the rest part of the feeding device is located in the under-pressure cavity; the feeding device comprises a feeding state and a discharging state, when the feeding device is in the feeding state, the part, located in the zero pressure cavity, of the feeding device is communicated with the zero pressure cavity, the part, located in the under-pressure part, of the feeding device is isolated from the under-pressure cavity, and the feeding device is used for storing abrasive; when the feeding device is in the discharging state, the part, located in the zero pressure cavity, of the feeding device is isolated from the zero pressure cavity, the part, located in the under-pressure cavity, of the feeding device is communicated with the under-pressure cavity, and the feeding device is used for discharging the stored abrasive into the under-pressure cavity; the driving device is used for driving the feeding device to switch between the feeding state and the discharging state. The device is simple in structure, convenient to use and capable of achieving the continuous abrasive filling function.

Description

technical field [0001] The invention relates to the field of abrasive water jet cutting, in particular to an abrasive filling device. Background technique [0002] Jet cutting is the only cold cutting technology at present. It has the characteristics of no high temperature, no spark, and no pollution. It is suitable for emergency rescue and military use in flammable, explosive or special environments such as underwater, traffic accidents, coal mines, and petrochemicals. [0003] Waterjet cutting originated in the 1980s. It first served aviation and aerospace special processing. Industrial sector. [0004] At present, industrial applications are mainly concentrated in the field of traditional water jets, in which pure water jets require ultra-high pressures above 200 MPa; post-mixed abrasive water jets require 50 MPa-200 MPa; and pre-mixed abrasive water jets require 20 MPa-50 MPa pressure. This is mainly due to the change in the mechanism of action between the water jet an...

AI Technical Summary

Problems solved by technology

But its disadvantage is that part of the energy of the cutting system is lost through the drainage pump, which affects the cutting ability

[0011] To sum up, for the method of double-tank parallel filling, its common disadvantages are: the operation of the double-tank feeding system has obvious disadvantages in the application

The disadvantage of this method is that the volume of the double tank is too large and the system is more complicated

[0014] From the above analysis, it can be seen that there is no filling device that can better realize the continuous abrasive filling function in the various types of pre-mixing water jet cutting systems in the prior art

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