Sludge drying and energy recovering system and energy recovering and drying process thereof

A sludge drying and energy recovery technology, which is applied in dehydration/drying/concentrated sludge treatment, etc., can solve the problems of restricting the development of sludge treatment and disposal technology, high dust volume, and low heat transfer efficiency of heating system

Active Publication Date: 2013-04-03
SHANGHAI SAFBON WATER SERVICE CO LTD
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Problems solved by technology

The existing drying technology and equipment mainly have shortcomings such as relying on dry sludge back-mixing, low heat transfer efficiency of the heating system, large heat loss, and high dust volume, which restrict the development of sludge treatment and disposal technology. Therefore, the development of new sludge Drying equipment plays a vital role in solving the current increasingly serious sludge problem

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  • Sludge drying and energy recovering system and energy recovering and drying process thereof

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0009] The invention discloses a sludge drying and energy recovery system, which includes a sludge storage room 1, which is different from the prior art in that: the air outlet of the sludge storage room 1 passes through the No. 1 fan 2 and the deodorization reactor 3 The sludge discharge port of the sludge storage chamber 1 is connected to the sludge feed port at one end of the drying machine 5 through the sludge pump 4, and the other end of the drying machine 5 is provided with a sludge discharge port.

[0010] In specific implementation, one end of the drying machine 5 is provided with a waste gas outlet, and the waste gas outlet is connected to one end of the cyclone dust collector 6 through a pipeline, and the other end of the cyclone dust collector 6 is connected to the air-gas heat exchanger through the No. 2 fan 7 8 is connected to the first inl...

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Abstract

The invention discloses a sludge drying and energy recovering system and an energy recovering and drying process thereof. The system comprises a sludge storing chamber and is characterized in that the air outlet of the sludge storing chamber is connected with a deodorization reactor by a fan I, the sludge discharge port of the sludge storing chamber is connected with the sludge feed port of one end of a drying machine via a sludge pump, and the other end of the drying machine is provided with a sludge discharge port. By using the indirect drying manner in the system, the heat transfer efficiency is high, the amount of carrier gas is low, the heat loss is relatively low, the energy recovering rate is high, the dust is avoided basically, and the system can be used for drying the sludge with the water content of 70-85% to be the sludge with the solid content of 40-65%.

Description

technical field [0001] The invention relates to the technical field of sludge drying, in particular to a sludge drying and energy recovery system, in particular to its system connection structure and energy recovery drying process. Background technique [0002] With the rapid development of my country's economy, the pace of urbanization and small town construction continues to accelerate, the discharge of industrial and domestic sewage is increasing, and the amount of sludge that follows (including sludge from drainage pipes, pumping stations and sewage treatment plants ) is getting bigger and bigger. As a by-product of sewage treatment, sewage treatment plant sludge will cause serious secondary pollution if it is not treated in time. At present, the main treatment technologies for sludge include landfill, composting, incineration, and utilization of building materials, etc., and these treatment and disposal technologies must go through the process of drying. The existing dr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12
Inventor 张春霖
Owner SHANGHAI SAFBON WATER SERVICE CO LTD
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