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Dewatered sludge bio-drying apparatus

A technology of dewatering sludge and biological drying, which is applied in dehydration/drying/concentrated sludge treatment, biological sludge treatment, etc. It can solve the problems of poor air permeability and uneven drying of sludge, and achieve good sealing performance and high treatment efficiency. The effect of maximizing efficiency

Active Publication Date: 2021-12-03
SHANGHAI UNIV OF ENG SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention can overcome the problems of poor air permeability and uneven drying of sludge existing in existing biological drying equipment, simplifies the auxiliary oxygen supply mode in biological drying technology, and at the same time effectively ensures uniform material and loose state, which is beneficial to Mass transfer of oxygen and moisture

Method used

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  • Dewatered sludge bio-drying apparatus
  • Dewatered sludge bio-drying apparatus
  • Dewatered sludge bio-drying apparatus

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Embodiment

[0040] A biological drying device for dewatered sludge, such as Figure 1-2 , the device includes a reactor main body, the reactor main body includes: a drum inner shell 12 for filling dewatered sludge to be dried; The air distribution chamber 10 is connected to the ventilation pipe 8; in other words, the main body of the reactor is a double-layer shell structure, the outer shell is a cuboid, and the inner shell is a drum; the inner shell 12 of the drum is provided with a feed inlet , The side of the reactor shell 2 is provided with a discharge port; the device also includes a rotating mechanism for controlling the rotation of the drum inner shell 12 . The upper surface of the air distribution chamber 10 is a porous plate shell 11, and the material of the drum inner shell 12 is a steel plate with a porous structure.

[0041] Such as image 3, The drum inner shell 12 is provided with a baffle plate 18 perpendicular to the rotation direction of the drum inner shell 12 . The s...

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Abstract

The present invention relates to a dewatered sludge bio-drying apparatus, the apparatus comprises a reactor main body. The reactor main body comprises a drum inner shell (12) for filling dewatered sludge to be dried; and a reactor outer shell (2). the reactor outer shell (2) is internally provided with an air distribution cavity (10) for aerating the roller inner shell (12), and the air distribution cavity (10) is connected with a ventilation pipe (8); a feeding hole is formed in the roller inner shell (12); a discharging hole is formed in the side surface of the reactor outer shell (2); and the dewatered sludge bio-drying apparatus further comprises a rotating mechanism used for controlling the roller inner shell (12) to rotate. Compared with the prior art, thedewatered sludge bio-drying apparatus has the advantages that a good growth environment can be provided for microorganisms, moisture in materials can be rapidly removed, and therefore the drying efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a dewatered sludge biological drying device. Background technique [0002] Sludge is an inevitable product of sewage biological treatment. With the rapid development of my country's social economy and the continuous advancement of urbanization, the amount and rate of urban sewage treatment have increased significantly, which has led to an increase in sludge production year by year. Statistics from the "Statistical Yearbook of Urban Construction" issued by the Ministry of Housing and Urban-Rural Development of my country show that the output of dewatered sludge in my country in 2019 is as high as about 55 million tons, based on a moisture content of 80wt%. In sewage treatment plants, sludge generally undergoes treatment processes such as concentration, conditioning, and mechanical dehydration. The discharged dewatered sludge is enriched with a variety o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02C02F11/12
CPCC02F11/02C02F11/12
Inventor 郝宗娣饶品华张文启胡正婕郭毅斌
Owner SHANGHAI UNIV OF ENG SCI
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