Novel desilting device

Abstract

The invention discloses a novel desilting device which comprises a primary desilting pipe, the primary desilting pipe is fixedly welded and connected with a secondary desilting pipe through a spoiler to form a desilting mechanism, a sealing plate is connected with the primary desilting pipe in a sealed and welded mode, a sand blocking plate is connected with the primary desilting pipe in a sealed and welded mode, and a water inlet pipe penetrates through the sand blocking plate and is connected with the sand blocking plate in a sealed and welded mode. The water inlet pipe penetrates through the top sealing plate and the middle sealing plate and is hermetically welded and connected. The device is assembled through welding connection and screw thread connection, the primary desilting pipe can be lengthened through screw thread connection according to different water pumping flows, the desilting efficiency is improved, and the problem that water pumping is unstable due to sand and stones in water in a water pumping test is solved.

Description

technical field [0001] The invention relates to the field of hydraulic ring tests, in particular to a novel sand sinking device. Background technique [0002] In hydrogeological surveys and hydrogeological surveys of mining areas, pumping tests are an important technical means of work. Through pumping tests, the relationship between water inflow, water level drawdown, and pumping duration can be studied, and the aquifer can be obtained. and the hydrogeological parameters of the transflow layer, study the shape, size and expansion process of the descending funnel, determine the position and nature of the boundary of the aquifer, and carry out mining or dewatering simulation to determine the well spacing, production drawdown, reasonable well diameter and other design wells parameters required by the group. In addition, through the pumping test, it is possible to directly evaluate the exploitable (permitted) volume of the water source. [0003] Steady flow pumping test means ...

AI Technical Summary

Problems solved by technology

The pumping test has high requirements on the quality of the hydrological holes, but in actual work, due to various reasons such as funds, when the quality of the hydrological holes is not high, during the pumping process, with the second and third drawdowns With the increase of backwater volume, part of the coarse and fine gravel will be washed off the inner wall of the hole. When using the water meter to read the pumping flow rate, it will seriously affect the flow stability of the pumping test and affect the effect of the entire pumping test. Therefore, we propose a new type of sedimentation Device to assist pumping flow stability during pumping test

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