Automatic measuring device and measuring method for sludge specific resistance

Abstract

The invention relates to an automatic measuring device and measuring method for sludge specific resistance, and can effectively solve the problem of accurate determination of the sludge specific resistance. The technical scheme of the invention is that a suction flask is placed on an electronic balance, a suction funnel is arranged on a closed experimental box, a horizontal porous support plate is arranged in the suction funnel, filter paper is paved on the porous support plate, a first connecting pipe which extends into the bottom of an inner cavity of the suction flask is mounted at the lower mouth of the suction funnel, a second connecting pipe of which one end is communicated with the inner cavity of the suction flask is mounted at the upper part of the suction flask, a suction filtration pipeline of which one end is communicated with an inner cavity of an intermediate buffer bottle is mounted at the upper part of the intermediate buffer bottle, the other end of the suction filtration pipeline is connected with a vacuum pump, a valve and a vacuum meter are successively mounted on the first connecting pipe between the suction funnel and the suction flask, and the output end of the electronic balance is connected with a computer. According to the invention, the sludge specific resistance is automatically determined through computer program control, test data is read and recorded more conveniently and accurately, and the automatic measuring device and measuring method for the sludge specific resistance have the advantages of convenient use, simple operation and high accuracy of the measured data.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to an automatic sludge specific resistance measuring device and a measuring method. Background technique [0002] The moisture content of sludge has an important impact on the treatment and disposal of sludge. Whether it is sludge incineration or sludge landfill, there are strict requirements on the moisture content of sludge. For example, sludge landfill treatment requires other The moisture content is less than 60%. In addition, the moisture content of sludge directly affects the volume of sludge. The higher the moisture content of sludge, the larger its volume. Sludge dehydration can significantly reduce its volume, which is convenient for sludge transportation and subsequent treatment. Therefore, it is of great significance to study the dewatering performance of sludge. Sludge specific resistance is one of the important indicators of sludge dewatering performance. Whe...

AI Technical Summary

Problems solved by technology

It has the following shortcomings and deficiencies: First, two or more people are required to cooperate with the experiment during the measurement, and manual timing and reading are required. At the beginning of the experiment, the filtrate falls rapidly, and errors in manual reading will inevitably occur, which will affect the measurement results; The defect is that when the filtrate falls, the fluctuation of the liquid level makes the reading inaccurate and the error increases; the third is that when the filter paper is placed on the existing funnel, it is easy to leak air during the measurement process, and the filter cake is difficult to take out after the experiment, resulting in inaccurate measurement of the filter cake quality. Affect the final measurement results; Fourth, the main body of the device is connected with the vacuum pump. Although the device is integrated, the vibration of the vacuum pump will affect the accurate reading of the filtrate volume; Fifth, manual measurement, the follow-up processing steps are cumbersome and inefficient

The existence of the above problems can no longer meet the engineering practice and theoretical teaching needs of the actual treatment and disposal of sludge.

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