Experimental device and method for simulating working conditions of filter press

Abstract

The invention discloses an experimental device for simulating working conditions of a filter press. The experimental device comprises a barrel, a filter press piston is arranged in the barrel, a liquid outlet pipe communicated with a filter cavity is arranged on a first end cover at one end of the barrel, and end cover filter cloth is arranged at one end of the first end cover positioned in the filter cavity; a second end cover is arranged at the other end of the barrel, a movable liquid outlet pipe penetrates through the second end cover and is communicated with a liquid through hole in the filter press piston, and piston filter cloth is arranged at one end of the filter press piston positioned in the filter cavity; and an air inlet pipe communicated with a pressure cavity is arranged on the second end cover. The outer wall of the movable liquid outlet pipe is provided with scales. According to an experimental method for simulating the working conditions of the filter press by adopting the device, the discharge quantity or the thickness of filter cakes is read by the scales on the movable liquid outlet pipe. The device and the method simulate the actual working conditions of the filter press as much as possible, the experimental data are reliable, and the experimental data can be quickly acquired.

Description

technical field [0001] The invention relates to the field of mud filter press performance testing, in particular to a simulated filter press for testing the performance of filter presses for different slurries, or for selecting filter cloths, or for testing the filter press performance after mud modification. An experimental device for working conditions of a filter and an experimental method using the experimental device. Background technique [0002] With the improvement of people's living standards, the country pays more and more attention to the environment, and various foundation construction operations require discharge to meet standards. The filter press has become the first choice for mud-water separation. It can be modified with or without mud. Separation of mud into dry residue with less water content and clear filtrate. The modification of mud is a cumbersome experimental process. It takes many times of actual operation to achieve the performance suitable for the...

AI Technical Summary

Problems solved by technology

[0003] However, this instrument has the following disadvantages: First, the filter loss on one side, the efficiency is low, and the working condition of the filter press cannot be simulated;

[0004] Second, due to the single-sided filtration and uneven filtration, the data can only be used for guidance and cannot be directly accessed;

[0005] Third, the filtrate must be caught in a graduated container to read the data;

[0007] Fifth, it is difficult to take out the filter cake, and it is easy to deform after being knocked out vigorously;

[0008] Sixth, only the air pump is used for pressure supply, which is time-consuming and labor-intensive

The existing problem is that the requirements for the material of the diaphragm are high, and there is also the problem of difficulty in obtaining experimental data

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