Breaking and pyrolyzing device for recycling sludge and breaking and pyrolyzing technology recycling sludgetherefor

A recycling and sludge technology, applied in pyrolysis treatment of sludge, dehydration/drying/concentrated sludge treatment, incinerator, etc., to achieve the effects of reducing natural explosions, high denitrification efficiency, and improving drying capacity

Active Publication Date: 2015-04-15
SHANDONG UNIV
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the current urban production and domestic sewage treatment mainly adopts the activated sludge method, it is inevitable to produce by-product sludge with a moisture content of more than 80%.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Breaking and pyrolyzing device for recycling sludge and breaking and pyrolyzing technology recycling sludgetherefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] A device for sludge crushing and pyrolysis resource utilization, comprising a sludge warehouse 1, the sludge warehouse 1 communicates with a fan mill 4 through a sludge screw conveyor 3, and the fan mill 4 is provided with a hot air inlet, a combustible gas outlet and a sewage The mud outlet and the combustible gas outlet are connected to the boiler through pipelines, the sludge outlet is connected to the boiler through pipelines and the coarse powder separator 8, and the hot air inlet is connected to two paths, one of which is the hot air pipeline 9 connected to the air preheater 14 and the blower 13, Another way is the furnace flue pipe 10 that communicates with the boiler flue gas exhaust port 16 . An automatic scale 2 is installed between the sludge warehouse 1 and the sludge screw conveyor 3 . An induced draft fan 11 and a cyclone ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a breaking and pyrolyzing device for recycling sludge and a breaking and pyrolyzing technology for recycling the sludge. The technology comprises the following steps of: dedusting smoke generated by the burning of in a hearth by a cyclone separator, mixing with hot wind heated by an air preheating device to enter into a fan grinder, wherein the temperature of the mixed hot wind is 250-350DEG C, drying, breaking and pyrolyzing the sludge in the fan grinder, charging into a reburning region of the hearth throughby a static classifier to be burnt, and charging the pyrolysis-generated gas into the reburning region of the hearth through a combustible gas pipeline to form into a reducing atmosphere under the condition that the excess air coefficient is less than 1, so that restore the nitric oxide generated by a main burning region can be restored, and realize the reburning denitration can be realized. According to the deviceinvention, the recycling of the sludge can be realized, the volume size of the sludge can be greatly reduced in the manner of burning, all pathogens can be killed, and the pathogens are hardly available in the burnt residue by means of high-temperature treatment, and so that the problem of the foul smell of the sludge can be thoroughly solved. Meanwhile, according to the invention, the discharge of nitric oxide can be controlled.

Description

technical field [0001] The invention relates to a device and process for utilization of resources by crushing and pyrolysis of sludge, a device and process for simultaneously realizing sludge drying, crushing and pyrolysis in a fan mill and utilizing the dried sludge and the combustible gas produced by sludge pyrolysis Carry out reburning and denitrification resource utilization technology and equipment. Background technique [0002] In recent years, urban environmental pollution has become increasingly serious. In addition to vehicle emissions and industrial pollution, there is also solid waste pollution. Among them, sludge pollution is a large amount and difficult to handle. Sludge contains a large number of harmful substances such as germs, heavy metals, and polychlorinated biphenyls, and emits foul-smelling gases. If it is not handled properly, it will be very harmful. Since the current urban production and domestic sewage treatment mainly adopts the activated sludge me...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): F23G7/00C02F11/10C02F11/12B01D53/56
Inventor 王志强范燕荣马春元王旭江
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap