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Heat pump type closed sludge drying system and control method of same

A sludge drying and closed-type technology, which is applied in heat pumps, dehydration/drying/thickened sludge treatment, refrigerators, etc., can solve the problems of high energy consumption and thermal forced drying, and it is difficult to get large-area push pipes. , high drying temperature, etc.

Active Publication Date: 2019-04-02
JIANGSU TENESUN ELECTRICAL APPLIANCE
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The common features of thermal forced drying are complex system, deodorization treatment, high drying temperature, high energy consumption, and the dried sludge needs to be cooled before storage and transportation
Due to the above characteristics, the application of thermal forced drying is difficult to be used in large-area push tubes

Method used

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  • Heat pump type closed sludge drying system and control method of same

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Embodiment 1

[0089] A heat pump type closed sludge drying system includes a drying room. The drying room is provided with an upper conveyor belt 2 and a lower conveyor belt 3, and a system shell 4 is provided on one side of the drying room. The top of the drying room is connected with the top of the system shell to form a back In the air channel 5, an auxiliary air outlet is formed on the side wall below the upper conveyor belt that is connected to the system housing, and a main air outlet is formed on the side wall below the lower conveyor belt and the system housing is connected to the system housing. The main air outlet is provided with a main blower 18, and the auxiliary air outlet is provided with two auxiliary circulating fans 20.

[0090] The system housing is provided with a first heating circulation system, a second heating circulation system, and an air duct circulation system.

[0091] The first heating cycle system is the No. 1 compressor 6, the sensible heat condenser 19, the No. 1...

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Abstract

A heat pump type closed sludge drying system comprises: a drying room (1), an upper conveyor belt (2) which is arranged on the upper part of the drying room and used for conveying sludge, and a lowerconveyor belt (3) which is arranged on the lower part of the drying room and used for conveying sludge. The heat pump type closed sludge drying system also comprises a system housing (4) at one side of the drying room (1), where the top of the drying room and the top of the system housing are connected to form an air return channel (5). A main air supply port, connected with the system housing, isformed in the side wall where the lower part of the lower conveyor belt is connected with the system housing. The system also includes a first heating circulation system, a second heating circulationsystem and an air flue circulation system that are arranged inside the system housing. The sludge drying system and the control method of same are energy-saving, environment-friendly and high-effective.

Description

Technical field [0001] The invention relates to the field of sewage treatment and heat exchange of heat pumps, in particular to a heat pump type closed sludge drying system and a control method thereof. Background technique [0002] As the public in my country attaches great importance to sewage treatment, the main market for sewage treatment in my country is basically completed. In the future planning, the sewage treatment market will be further promoted and expanded to improve the efficiency of sewage treatment and the average technical level of the industry. As a derivative of sewage, the output of sludge has been increasing in recent years. In 2015, the output of domestic sludge has reached 35 million tons, a year-on-year increase of 16%. It is estimated that in municipal sludge, about 10,000 tons of sewage produces 50,000 to 80,000 tons of sludge. According to expert estimates, my country produces 30-40 million tons of municipal sludge with a moisture content of about 80% e...

Claims

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Application Information

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IPC IPC(8): C02F11/13F25B30/00
CPCC02F11/12F25B30/00
Inventor 王天舒王玉军吴小网刘军李柱王颖
Owner JIANGSU TENESUN ELECTRICAL APPLIANCE
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