Form and content measuring device for industrial or urban sewage-sludge combined water

Abstract

The invention relates to a form and content measuring device for industrial or urban sewage-sludge combined water. The device comprises a low-temperature weight losing box, an analysis balance, a temperature control instrument, a heating resistance wire, a temperature sensor and a diversion fan, wherein the periphery of the low-temperature weight losing box is coated with a heat preserving material; one side of the top of the low-temperature weight losing box is provided with a cover; an air inlet pipe extends into one side of the side face of the low-temperature weight losing box, and an air outlet pipe extends into the other side of the side face of the low-temperature weight losing box; a tray is arranged above the tail end of a probe of the analysis balance; the temperature control instrument is connected with the heating resistance wire and the temperature sensor positioned in the low-temperature control box respectively through leads; and the top of the low-temperature weight losing box is provided with the diversion fan. The device is used for measuring the content of free water, interstitial water, surface combined water and molecular combined water in industrial or urban sewage and sludge, and has the advantages of reasonable and simple structure, high measuring accuracy, convenience for operating, safety, reliability, high practicability and wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a device for measuring the state and content of bound water of industrial or urban sewage sludge. Background technique [0002] In the process of industrial sewage and urban sewage treatment, a large amount of sludge will be produced. Sludge contains a large amount of water, which can be divided into free water, interstitial water, surface bound water, and molecularly bound water according to the different water binding states. These four binding states of water are in order from strong to weak according to their binding energy: molecularly bound water > surface bound water > interstitial water > free water. The combination form of sludge moisture has an important impact on the subsequent dehydration and drying treatment of sludge. For example, the higher the free water content, the easier the sludge dewatering; conversely, the higher the molecular binding wate...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an industrial or urban sewage sludge bound water form and content measuring device for measuring the content of free water, interstitial water, surface bound water and molecularly bound water in industrial or urban sewage sludge , which solves the problem of difficult measurement of sludge bound water form in industrial applications and scientific research work

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