Pyrohydrolysis flash separation device, pyrohydrolysis flash separation technology, pyrohydrolysis system and pyrohydrolysis technology

Abstract

The invention discloses a pyrohydrolysis flash separation device, a pyrohydrolysis flash separation technology, a pyrohydrolysis system and a pyrohydrolysis technology. The pyrohydrolysis flash separation device comprises a pyrohydrolysis reaction tank and a gas-liquid separation tank which are communicated through a pipe, wherein a pressure relief valve is arranged on the pipe therebetween. By the pyrohydrolysis flash separation technology, the pyrohydrolysis flash separation device is used for flash separation. The pyrohydrolysis system comprises a slurrying tank, a mud inlet pump, the pyrohydrolysis reaction tank and the gas-liquid separation tank which are sequentially communicated end to end through pipes; the pressure relief valve is arranged on the pipe between the pyrohydrolysis reaction tank and the gas-liquid separation tank. By the pyrohydrolysis technology, the pyrohydrolysis system is used for pyrohydrolysis. The pyrohydrolysis flash separation device and the pyrohydrolysis system have the advantages of small floor area, low production cost, a high safety production factor and the like, and the pyrohydrolysis flash separation technology and the pyrohydrolysis technology have the advantages of a simple process, easy operation, high treatment efficiency, a good gas-liquid separation effect and the like, so that actual treatment needs can be met and an application prospect is very good.

Description

technical field [0001] The invention belongs to the field of sludge treatment, and relates to a thermal hydrolysis flash separation device, a thermal hydrolysis flash separation process, a thermal hydrolysis system and a thermal hydrolysis process. Background technique [0002] High-temperature thermal hydrolysis is a pretreatment technology for anaerobic digestion, and high-temperature thermal hydrolysis + high-temperature anaerobic digestion treatment process is often used to treat sludge. However, the high-temperature thermal hydrolysis process exposes the following defects in the actual treatment process: (1 ) The steam distribution branch pipe of the pulping machine is easily blocked, the steam pressure release of the thermal hydrolysis reaction tank is not complete, and the sludge discharge is overpressured and overheated; (2) The pressure fluctuation of the thermal hydrolysis system is large during the pressure relief process, and the pipeline vibration is large; (3) ...

AI Technical Summary

Problems solved by technology

[0002] High-temperature thermal hydrolysis is a pretreatment technology for anaerobic digestion, and high-temperature thermal hydrolysis + high-temperature anaerobic digestion treatment process is often used to treat sludge. However, the high-temperature thermal hydrolysis process exposes the following defects in the actual treatment process: (1 ) The steam distribution branch pipe of the pulping machine is easily blocked, the steam pressure release of the thermal hydrolysis reaction tank is not complete, and the sludge discharge is overpressured and overheated; (2) The pressure fluctuation of the thermal hydrolysis system is large during the pressure relief process, and the pipeline vibration is large; (3) Due to the high mud discharge temperature, the mud discharge pump is frequently damaged

In order to solve the above problems, if the thermal hydrolysis system proposed by the Norwegian CAMBI company is used in the existing thermal hydrolysis process, it is necessary to prepare a large-capacity flash separation tank. About 5 times the size of the reaction tank, the site occupied is relatively large, limited by the site, technology and funds, which makes it difficult to implement the thermal hydrolysis system proposed by the Norwegian CAMBI company, and its practical application range is also severely limited

In addition, the existence of the above-mentioned problems makes the existing thermal hydrolysis system unable to meet the actual needs, and there are limitations in use

Images