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Sludge low-temperature drying treatment system

A treatment system and sludge drying technology, applied in the direction of dehydration/drying/thickened sludge treatment, etc., can solve the problems of high energy consumption, secondary pollution of the environment, and high operating costs, and achieve reduced resistance, small footprint, The effect of high degree of equipment integration

Pending Publication Date: 2017-07-18
BEIJING BIOTECHINA ENVIRONMENT CORP
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Problems solved by technology

The drying process is a key step in the process. At present, the main problems in this process are high energy consumption, high operating costs, and the dust and waste gas generated during the drying process and subsequent transportation are likely to cause secondary environmental pollution. Difficult to adapt to the new situation, unable to meet the increasing amount of sludge and increasingly stringent environmental protection requirements, needs further improvement

Method used

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  • Sludge low-temperature drying treatment system

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the embodiments shown in the drawings, but it should be noted that these embodiments are not a limitation of the present invention, and those of ordinary skill in the art make functional, method, or structural improvements based on these embodiments. Equivalent changes or substitutions fall within the protection scope of the present invention.

[0016] Participate figure 1 As shown, this embodiment provides a low-temperature sludge drying treatment system, including a heat pump system, an air circulation system, a sludge drying chamber 3, a spray system 4, a filter 5, and a surface cooler 6; the heat pump system includes The evaporator 11, the condenser 12, the compressor 13 and the expansion valve 14. The evaporator 11 is connected to the condenser 12 through the compressor 13 and the expansion valve 14. The evaporator 11 is used to absorb heat from the water in the sewage treatment plant and pass ...

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Abstract

The invention belongs to the technical field of environment protection, and concretely relates to a sludge low-temperature drying treatment system, which comprises a heat pump system, an air circulation system, a sludge drying chamber, a spraying system, a filter and a surface air cooler. The heat pump system comprises an evaporator, a condenser, a compressor and an expansion valve; the evaporator is connected with the condenser through the compressor and the expansion valve; the condenser is connected with the sludge drying chamber through the air circulation system; the sludge drying chamber is connected with the spraying system; the spraying system is connected with the filter; the filter is connected with the surface air cooler; the surface air cooler is connected with the condenser. The sludge low-temperature drying treatment system provided by the invention is small in occupied area, high in equipment integration degree, low in energy consumption and free of secondary pollution during a treatment process.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection, and specifically relates to a low-temperature sludge drying treatment system. Background technique [0002] Sludge is the end product of the sewage treatment process and an important source of pollution. If it is not treated, it will cause serious pollution to the atmosphere, water bodies, and soil, and it will also accelerate the spread of certain human diseases. With the further development of my country’s economy, the amount of sludge produced by industrial wastewater treatment and municipal sludge will become larger and larger, and the threat of sludge to environmental pollution will also become greater and greater. The requirements and standards will become higher and higher. Among the many sludge treatment technologies, drying and incineration are an important technology. The basic process is to concentrate and dry the sludge, and finally incinerate, and to recover the heat gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12
CPCC02F11/12
Inventor 李国文张学辉温健方杜菲陈丽华韦媛媛
Owner BEIJING BIOTECHINA ENVIRONMENT CORP
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