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Sludge drying system and drying method achieved through shallow layer geothermal energy

A sludge system and shallow surface technology, applied in chemical instruments and methods, dehydration/drying/concentrated sludge treatment, water/sludge/sewage treatment, etc., can solve the problem of large area of ​​solar drying and drying process Insufficient safety, high equipment operation requirements, etc., to achieve full and effective use of new energy, fast and convenient process, and low cost

Inactive Publication Date: 2016-08-17
NINGXIA RES ACADEMY OF ENVIRONMENTAL SCI LIMITED LIABILITY
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Problems solved by technology

Solar drying occupies a large area and has high requirements for the drying plant; other drying technologies have high requirements for equipment operation, and the drying process is not safe enough

Method used

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  • Sludge drying system and drying method achieved through shallow layer geothermal energy
  • Sludge drying system and drying method achieved through shallow layer geothermal energy

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Embodiment Construction

[0025] The present invention is described in further detail below in conjunction with accompanying drawing:

[0026] Such as figure 1 , 2 As shown, a shallow surface geothermal energy drying sludge system includes a geothermal energy collection heating system, a sludge drying system, a sludge transmission system, a PLC control system, and an exhaust system; the geothermal energy collection system includes a ground source heat pump 2 and a buried U-shaped pipe 1 buried underground; the sludge drying system includes a sludge drying room 3 and a partition 8 arranged in the sludge drying room 3, and the surroundings of the sludge drying room 3 and the partition A geothermal energy heating pipeline 5 is installed on the plate 8, and the exhaust system includes a gas transmission pipeline 12 installed on the upper end of the sludge drying room 3, a gas introduction pipeline 16 and a heat exchanger 14, and the heat exchangers 14 are respectively installed on the gas transmission pip...

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Abstract

The invention discloses a sludge drying system achieved through shallow layer geothermal energy. The sludge drying system comprises a geothermal energy collecting and supplying system, a sludge drying system, a sludge conveying system body, a PLC control system and an exhaust system; the geothermal energy collecting system comprises a buried U-shaped pipeline and a ground source heat pump; the sludge drying system body comprises a sludge drying chamber and partition plates arranged in the sludge drying chamber; a geothermal energy heating pipeline is installed at the periphery of the sludge drying chamber in the partition plates respectively, and the buried U-shaped pipeline and the geothermal energy heating pipeline are both connected to the ground source heat pump; the sludge conveying system comprises a conveyor crawler belt installed on the partition plates, one end of the conveyor crawler belt is provided with a dry sludge bin, the other end of the conveyor crawler belt is provided with a meter pump, and the upper end of the conveyor crawler belt is provided with a sludge scraper blade. According to the sludge drying system, new energy is fully and effectively utilized while fossil energy is saved, the certain economic, social and environmental benefit is achieved, shallow layer geothermal energy is free of pollution and renewable, and the advantages of being stable, reliable, low in cost, clean and environmentally friendly are achieved.

Description

technical field [0001] The invention belongs to the field of environmental protection, and relates to a shallow surface geothermal energy drying sludge system and a drying method, in particular to a geothermal energy drying treatment sludge device and process for drying sludge by utilizing shallow surface geothermal energy. Background technique [0002] With the rapid development of urbanization in our country, the amount of urban sewage continues to increase. After the sewage is treated, 0.5% to 1% of its volume solid aggregates will settle, that is, sludge. According to estimates, the amount of sludge (dry weight) discharged by urban sewage treatment plants in my country is about 30 million tons, accounting for 17.4% of the total urban domestic waste in my country. According to the statistical data of the Ministry of Housing and Urban-Rural Development, at present, the secondary pollution caused by random littering of sludge in sewage treatment plants in my country is very...

Claims

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Application Information

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IPC IPC(8): C02F11/12
CPCY02W10/37C02F11/12C02F2303/06C02F2303/10
Inventor 聂惠军王慧徐美荣魏显露高晓波朱华章江鸿宾安浩丁佳祺赵文迪李士达严晓莎
Owner NINGXIA RES ACADEMY OF ENVIRONMENTAL SCI LIMITED LIABILITY
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