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Sludge drying system based on biomass energy

A technology of sludge drying and biomass energy, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc. problems, to achieve the optimization of the structure of the drying drum, the realization of the drying effect and the optimization of the process flow

Inactive Publication Date: 2019-11-12
SHANDONG UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] However, papermaking sludge has complex components, high water content, many pathogenic bacteria, and is accompanied by foul smelling gas and difficult to deal with.
The traditional treatment method will occupy a large amount of land, and the infiltration of enriched elements will cause eutrophication of the water body, which poses a potential environmental threat
In addition, the moisture content of the sludge after conventional mechanical dehydration is still as high as 50%, which cannot solve the environmental protection problems of the sludge itself; the conventional drying technology consumes a lot of energy

Method used

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  • Sludge drying system based on biomass energy
  • Sludge drying system based on biomass energy
  • Sludge drying system based on biomass energy

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Embodiment

[0030] Such as Figure 1 to Figure 5 As shown, a sludge drying system based on biomass energy includes a sedimentation device, a dehydration device and a drying device arranged in sequence. The sedimentation device, dehydration device and drying device are connected in series by a conveying device, and the drying device is connected to a hot air device.

[0031] The settling device includes a stirring tank 2 and a sedimentation tank 5, the stirring tank 2 is provided with a raw sludge feed port 1 and a first air outlet 3, and the conveying device includes a first conveying pump 4, a second conveying pump 8, and the stirring tank 2 The first delivery pump 4 is connected to the sedimentation tank 5, and the sedimentation tank 5 is connected to the dehydration device through the second delivery pump 8. The top of the settling tank 5 is provided with a second air outlet 6, and the first air outlet 3 and the second air outlet 6 are respectively connected to the blower 12 through pi...

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Abstract

The invention relates to the technical field of sludge treatment, in particular to a sludge drying system based on biomass energy. The sludge drying system includes a precipitation device, a dehydration device and a drying device which are successively arranged, the precipitation device, the dehydration device and the drying device are connected in series by a conveying device, and the drying device is connected with a hot air device. The sludge drying system is optimized in technological process, sludge drying is carried out by adopting a mode of drying after mechanical dehydration, and gooddehydration effect can be realized; and clean energy is used, the hot air device does not pollute the environment in the process of heat production, at the same time, smelly gas generated in other processes is also solved, harmless treatment of sludge and recycling of resources are realized, and the purposes of energy saving, emission reduction and environmental protection are achieved.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a sludge drying system based on biomass energy. Background technique [0002] Papermaking sludge is the product of papermaking wastewater treatment terminal, which is 5 to 10 times that of municipal sewage treatment plants of the same scale. At present, the treatment and disposal technologies of papermaking sludge are mainly landfill, composting, and incineration for power generation. In addition, it also includes other utilization technologies such as manufacturing papermaking fillers, manufacturing activated carbon, and producing acetic acid ethanol. [0003] However, papermaking sludge has complex components, high water content, many pathogenic bacteria, and is accompanied by malodorous gas and difficult to deal with. Traditional treatment methods will occupy a large amount of land, and the infiltration of enriched elements will cause eutrophication of the water body...

Claims

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Application Information

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IPC IPC(8): C02F11/121C02F11/13C02F11/14
CPCC02F11/121C02F11/14C02F11/13
Inventor 程卫东姜戌雅蔡红珍刘建彪林晓娜
Owner SHANDONG UNIV OF TECH
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