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Testing device for measuring sludge dewatering characteristics

A test device and sludge dewatering technology, which is applied in the direction of removing certain components and weighing, etc., can solve the problems of limited dewatering capacity and difficult dewatering characteristics, so as to overcome the inconvenience of reading, save the time of manual reading and data processing, Experiment with simple and fast effects

Active Publication Date: 2013-03-20
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

Sludge that has lost part of its moisture has a limited amount of dehydration, and it is difficult to measure its dehydration characteristics effectively and accurately with the existing specific resistance tester

Method used

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  • Testing device for measuring sludge dewatering characteristics

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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings. see Attachment

[0012] A test device for measuring sludge dehydration characteristics, which consists of a bracket 1, a speed regulating motor 2, a filtrate shield 3, a centrifugal cup 4, a filter bag 5, a sealing cap 8, a metering tube 12, a camera device 13, and a liquid container 14 , guide rail 15, weighing device 16, base 17 and computer 18, wherein the top of the base 17 is provided with a weighing device 16, the top of the weighing device 16 is placed with a metering tube 12 and a liquid container 14, the metering tube 12 and the liquid container The devices 14 are parallel to each other, the metering tube 12 and the liquid container 14 are made of transparent anti-corrosion materials, the bottom of the metering tube 12 and the liquid container 14 is connected, and a guide rail 15 is fixedly installed on the base 17, and the guide rail 15 is parallel to...

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Abstract

The invention relates to a testing device for measuring sludge dewatering characteristics and belongs to the technical field of environmental geotechnics. The testing device consists of a bracket, a speed-regulating motor, a filtrate shield, a centrifuge cup, a filter bag, a sealing cap cover, a metering tube, a photographic device, a liquid accommodating device, a guide rail, a weighing device, a base and a computer. With the adoption of the centrifuge cup dewatering mode, the defects of the vacuum filtering air leakage and unstabitily of vacuum degree and the like are overcome. The speed-regulating motor is adjustable in rotating speed, and the testing device can measure the sludge dewatering characteristics under different separation factor actions. According to an air outlet on the filtrate shield, the hose is tightly adhered to an inner wall of the liquid accommodating device, stable filtrate in the liquid accommodating device is guaranteed, and the precision of the reading of the photographic device is ensured. The testing parameters are set on a computer, the data is automatically processed through a computer program, and the testing efficiency is greatly improved.

Description

technical field [0001] The invention relates to a test device for measuring sludge dewatering characteristics, belonging to the technical field of environmental geotechnical engineering. Background technique [0002] With the rapid development of urbanization in China, the environmental safety problems caused by the rapid increase of urban sludge discharge have become increasingly prominent. Municipal dewatered sludge has the characteristics of high hydrophilicity, high water content, high organic matter content and low permeability, which makes it difficult to dispose of in the project. How to further reduce the water content of municipal dewatered sludge has become a key issue in its treatment and disposal. [0003] The evaluation of the dewatering performance of sludge is mainly determined by the sludge specific resistance meter. The reading of the existing sludge specific resistance tester mainly adopts the reading of the measuring cylinder. Because the dehydration speed...

Claims

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Application Information

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IPC IPC(8): G01N5/04
Inventor 陈亿军薛强陈益人张民张佩强钟峰
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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