Sand pump pulp inlet pipe connecting device and connecting method thereof

Abstract

The invention relates to a sand pump pulp inlet pipe connecting device and a connecting method thereof. The segment, with an anchor bar welded, of a fixed casing pipe is buried in a wall of a sand pump pond, the segment, with a flange plate welded, of the casing pipe is exposed out of the wall of the sand pump pond. A movable casing pipe comprises a casing pipe body and a flange plate, the outer diameter of the movable casing pipe is smaller than the inner diameter of the fixed casing pipe, and one end of the movable casing pipe stretches into the fixed casing pipe. Flange plates are arranged at the two ends of a telescopic pipe with the flange plates, one end of the telescopic pipe is connected with the flange plate of the movable casing pipe, and the other end of the telescopic pipe is connected with a flange plate on an ore pulp inlet of the sand pump. Sealing padding is stuck into a gap between the fixed casing pipe and the movable casing pipe, the movable flange plate is connected with the flange plate of the fixed casing pipe after the gap is full, and the sealing padding is compressed. The requirement for the mounting precision of the sand pump can be reduced, the pre-buried fixed casing pipe is hardly abraded, the movable casing pipe is quite convenient to replace after being abraded, the phenomenon that due to vibration of the sand pump, pulp is leaked out of the connecting position is completely eradicated, and losses of useful metal are reduced.

Description

technical field [0001] The invention relates to a connection device of an ore slurry conveying system in a concentrator, in particular to a connection device and a connection method for a slurry inlet pipe of a sand pump. Background technique [0002] In the production of beneficiation enterprises, the ore slurry enters the grinding and sorting cycle operation through the lifting of the sand pump, especially most of the mine tailings are transported to the tailings pond through the sand pump. The use of sand pumps is quite high, and at the same time, the phenomenon of slurry leakage at the feeding places of various sand pumps is also serious, which affects environmental sanitation and increases labor intensity of employees. In the traditional slurry delivery system, the slurry enters the sand pump through a hard-connected pipeline (see figure 1 ). In the production practice, the following shortcomings are shown: first, the horizontal accuracy of the sand pump installation ...

AI Technical Summary

Problems solved by technology

In the production practice, the following shortcomings are shown: first, the horizontal accuracy of the sand pump installation is very high, and the center line of the sand pump must be consistent with the center line of the embedded pipe in the mine pool; second, the installation of the slurry inlet pipe is difficult; third, The vibration of the sand pump, its vibration force is transmitted to the embedded pipe, it is easy to cause cracks and slurry leakage at the joint between the embedded pipe and the mine pool, affecting environmental sanitation or causing the loss of useful metals; fourth, the embedded pipe is easy to wear, once The embedded pipe is worn out, and it is particularly inconvenient to replace. It is necessary to partially destroy the wall of the mining pool to replace the embedded pipe

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