Wet sludge treatment method and equipment thereof

A technology for processing equipment and wet sludge, applied in dehydration/drying/concentrated sludge treatment, deodorization, disinfection, etc., can solve problems such as immature technology and equipment, poor environmental sanitation, and low reliability, and achieve volatilization Less flammable gas, energy saving, and high reliability

Inactive Publication Date: 2014-01-22
天通新环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing domestic drying technology and equipment, such as immaturity, low reliability, poor environmental sanitation and high energy consumption, and provide a wet sludge treatment method and its equipment

Method used

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  • Wet sludge treatment method and equipment thereof
  • Wet sludge treatment method and equipment thereof
  • Wet sludge treatment method and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1 Wet sludge treatment equipment

[0059] A wet sludge treatment equipment, including a wet sludge silo 1 and at least one set of treatment equipment (for example, 2 or 3 sets), wherein the treatment equipment includes a wet sludge delivery pump 2, sludge drying and forming equipment 3. Dust collector 4, condenser 5, induced draft fan 6 and deodorizing device 7;

[0060] Wherein, the sludge drying molding equipment 3 is a disc type sludge drying molding equipment, including a housing 31, a main shaft system and a driving transmission device 32; wherein, the main shaft system is located in the housing 31; the driving transmission device 32 is installed At one end of the main shaft system; the housing 31 is provided with a material inlet 311, a material outlet 312 and an exhaust gas outlet 313;

[0061] The spindle system includes a hollow shaft 33 and a plurality of discs 34 ; wherein, two ends of the hollow shaft 33 are provided with a steam inlet 331 , and one e...

Embodiment 2

[0078] Example 2 Treatment of wet sludge 300 tons / day

[0079] 300 tons / day of municipal sludge in a certain town is centrally disposed, and the system is equipped with 3 sets of treatment devices. The moisture content of the wet sludge is 80-85%. It is transported to the centralized sludge disposal plant by vehicle, and temporarily stored in the sludge silo. The carriage in the sludge silo reciprocates to squeeze the sludge into the sludge delivery pump. , transported to the disc-type drying equipment through pressure pipes, and the cutting sludge is stirred by the inner feathers and scrapers of the drying equipment, and after staying for 1-2 hours, it is dried into dry sludge with a moisture content of 35-40%. The diameter of mud particles is 3-5mm, which is transported to incineration or other final disposal through conveying equipment. The tail gas produced by drying contains a small amount of dust. The dust is regularly removed in the bag filter and electric heating is u...

Embodiment 3

[0080] Example 3 Treatment of wet sludge 200 tons / day

[0081] Centralized disposal of 200 tons / day of municipal sludge in a certain town is carried out in a waste incineration power plant. The low-quality steam in the power plant is used to dry the sludge, and the system is equipped with 2 sets of treatment devices. The moisture content of the wet sludge is 80-85%. It is transported to the garbage power plant by vehicle and stored temporarily in the sludge silo. The carriage in the sludge silo reciprocates to squeeze the sludge into the sludge delivery pump. The pressure pipeline is used to transport the sludge to the disc drying equipment, and the cutting sludge is stirred by the inner feathers and the mud cutter of the drying equipment. After staying for 1-2 hours, it is dried into dry sludge with a moisture content of 35-40%. The diameter of mud particles is 3-5mm, which is transported to incineration or other final disposal through conveying equipment. The tail gas prod...

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Abstract

The invention relates to a wet sludge treatment method and equipment thereof. Wet sludge is conveyed into sludge drying and forming equipment to be dried and formed through a wet sludge conveying pump from a wet sludge cabin; generated tail gas is sucked out through a draught fan, is fed into a dust collector for dust removal, and subsequently is fed into a condenser for condensation; uncondensed gas is fed into a deodorization device for smell gas removal, and is discharged until the gas meets the discharge standard. The wet sludge treatment method has the advantages that the heat conduction efficiency is high, the energy consumption is small, the process is simple, the reliability is high, a land is saved, the operation cost is low, and the like; municipal sewage and sludge can be treated in scale; a land resource is saved; the great significance in energy conservation is achieved.

Description

technical field [0001] The invention relates to a wet sludge treatment method, in particular to a thermal drying treatment process and equipment for urban wet sludge. Background technique [0002] With the provision of living standards and the rapid development of modern cities, the pollution of urban sewage sludge has become increasingly prominent. The treatment methods of urban sewage sludge mainly include incineration, composting, anaerobic digestion and landfill. The landfill treatment of traditional urban sewage sludge is subject to more and more restrictions. Sludge not only pollutes soil and surface water, but also pollutes water sources through groundwater flow, posing a permanent threat to human health and the environment. According to the basic principles of harmlessness, reduction and resource utilization of urban sewage sludge, the incineration of urban sewage sludge as urban organic matter for power generation has become a new direction to solve the outlet for u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12A61L9/00
Inventor 何志锋鲁瑞斌陶国建范宁星刘外丽沈佳程刚
Owner 天通新环境技术有限公司
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