Graded dispensing system of gravel for anti-leakage wall and preparation method thereof

Abstract

The invention discloses a gravel doped grinding system for an anti-leakage wall and a preparation method thereof. The preparation method comprises: 1) arranging a 5mm blockage screen on the upper part of a shunt screen in a re-screening workshop, forming a shunt groove on a chute at an discharge hole of the screen, and arranging a shunt plug board on the shunt groove; 2) shunting part of the mixture into an intermediate crushing workshop by adjusting the opening degree of the shunt plug board so as to increase the content of intermediate stone and the content of gravel; and 3) sampling a gravel doped finished product from a warehouse, performing a grinding test, adjusting the height of the shunt plug board and the opening degree of a discharge hole of a crushing system according to the result of the grinding test until the grinding meets the designed requirements. By the above steps, the gravel doped material for the anti-leakage wall which meets the requirements on the designed grinding is prepared at one time. The system and the method have the advantages of reducing occupied area, shrinking the production period and improving the production efficiency.

Description

technical field [0001] The invention relates to the construction field of water conservancy projects, in particular to a system and method for preparing gravel-mixed materials for cut-off walls. Background technique [0002] There are three main methods currently used to produce graded gravel mixtures: [0003] 1. Blending of finished aggregates: Graded aggregates are blended in different proportions to prepare gravels in anti-seepage materials. The method is to firstly process and sieve the aggregates into aggregates of different particle sizes, that is, finished aggregates; Blend the finished aggregates of all levels into a mixture that meets the design requirements in a certain proportion, that is, secondary blending. The method requires a large stockpiling site, a long production cycle and high preparation costs. [0004] 2. Combination of screening and crushing of natural materials: First, carry out systematic screening of natural materials, and store aggregates of va...

AI Technical Summary

Problems solved by technology

However, this method is only applicable to projects where the design grading range is relatively coarse and the content of boulders with a particle size greater than 40mm is high. When the content of small stones with particle size is high, due to the problem of the precision of the crusher itself, it is difficult to complete the primary processing and preparation of gravel mixed with this production method.

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