Pipe guaranteeing device for down-hole paste filling and control method

Abstract

The invention provides a pipe guaranteeing device for down-hole paste filling and a control method, and belongs to paste filling devices and control methods. An upper valve and a lower valve of the device are correspondingly and fixedly connected to a main pipe and coaxially communicate with each other. A lower spindle is arranged in a lower valve body and moves in the lower valve body. A sealingring is connected to the side wall of the lower spindle. A valve body lower end cover is connected to the lower end of the lower valve body through an adjustment ring. A valve body upper end cover isconnected to the upper end of an upper valve body through an upper adjustment ring. A cylinder barrel is connected to the valve body upper end cover. A cylinder barrel end cover and an upper spindle are sequentially connected in the cylinder barrel, and a rod is connected to the cylinder barrel end cover through a rod sealing end cover. A core housing is connected to the outer wall of the lower end of the cylinder barrel. An adjustment head is connected with the lower end of the upper spindle. An anti-rotation support is connected to the upper end of the valve body upper end cover, and an anti-rotation block is arranged on the anti-rotation support. The pipe guaranteeing device has the advantages of being simple in structure, convenient to disassemble and maintain, safe, and reliable. Leakage is avoided under a high-pressure condition, field control and remote control in a central control room are achieved, and the device does not need to be attended and can be repaired on site conveniently.

Description

technical field [0001] The invention relates to a paste filling device and a control method, in particular to an underground paste filling pipeline guarantee device and a control method. Background technique [0002] In the paste filling system, due to the influence of various factors, the capacity of the paste delivery pump will change, and the delivery pipeline is long, which will cause severe vibration of the pipeline when the paste is delivered, and the pipe joints of the pipeline There is an urgent need for a device that can control the flow of the pipeline in real time according to the delivery volume of the paste. [0003] During the paste filling process, it is necessary to fill the pipeline with water at the beginning to avoid the vibration of the pipeline when the paste is conveyed, and at the end of the filling, it is necessary to flush the pipeline with different pastes and water, because the fluidity of the conveying medium is different , It is also necessary t...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no pipe valve device on the market that can meet the requirements of the underground coal mine paste filling pipeline, and many common pipeline switching devices cannot simultaneously meet the requirements of high pressure, small size, simple structure, application of coal mine paste medium, and wear resistance. , simple operation and maintenance requirements

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