Method and system for cooperatively treating sludge through grate furnace waste incineration

A waste incineration and co-processing technology, applied in the direction of combustion methods, dehydration/drying/thickened sludge treatment, incinerators, etc., can solve the problems of high sludge construction and operation costs, and achieve obvious results

Pending Publication Date: 2017-08-04
CHONGQING SANFENG COVANTA ENVIRONMENTAL IND
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a method and system for cooperating sludge incineration with grate furnace waste incineration, using the steam generated by waste incineration waste heat to heat and dry the sludge in sewage treatment plants, and then dry the sludge after drying A certain degree of sludge is put into the grate furnace, mixed with garbage for incineration, and mature grate furnace waste incineration, waste heat utilization and flue gas treatment technologies are used in the follow-up process to achieve harmless and efficient sludge treatment. Reduction and resource utilization, solving the problem of high construction and operation costs of separate sludge drying and incineration treatment projects in the existing technology

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
  • Method and system for cooperatively treating sludge through grate furnace waste incineration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0027] Such as figure 1 As shown, grate furnace 1, garbage feed port 101, air intake pipe 102, waste heat boiler 2, water supply port 201, steam turbine 3, steam extraction port 301, generator 4, sludge dryer 5, wet sludge Inlet 501 , dried sludge outlet 502 , steam inlet 503 , steam outlet 504 , waste gas outlet 505 , water washing device 6 , condenser 7 , and wet sludge 8 .

[0028] A method for synergistically treating sludge with grate furnace waste incineration provided by the invention comprises:

[0029] Extract the high-temperature steam in the grate furnace 1 waste incineration power generation;

[0030] Using the high-temperature steam to dry the wet sludge ...

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 discloses a method and system for cooperatively treating sludge through grate furnace waste incineration, and belongs to the field of sludge treatment. Steam generated by grate furnace waste incineration is firstly utilized for carrying out indirect heat exchange drying on the sludge, and then the sludge dried to a certain degree and in-furnace waste are mixed and incinerated in a grate furnace according to a certain proportion. According to the method and system, the existing and mature grate furnace waste incineration technology is utilized for achieving effective drying and cooperative incineration on the sludge, the sludge independent drying cost and the building and operating cost of an incineration treatment project can be greatly reduced, and harmlessness, reduction and recycling of sludge treatment are achieved.

Description

technical field [0001] The invention belongs to the technical field of sludge treatment, and in particular relates to a method and a system for synergistically treating sludge with grate furnace garbage incineration. Background technique [0002] With the rapid development of economy and society and the acceleration of urbanization, the amount of sewage treatment in cities and towns has increased rapidly, and the sludge in sewage treatment plants has also increased sharply. According to statistics, the annual output of sludge in urban sewage treatment plants in China has exceeded 30 million tons . Sludge contains a large amount of organic matter, rich nutrients such as nitrogen and phosphorus, heavy metals, germs and pathogenic bacteria, etc. If it is not treated and discharged, it will cause serious pollution to the environment. How to effectively and economically dispose of sludge and realize the resource utilization of sludge has become a worldwide environmental problem,...

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 Applications(China)
IPC IPC(8): F23G7/00C02F11/12
CPCF23G7/001C02F11/12F23G2201/702F23G2201/10F23G2206/10F23G2206/20F23G2209/12Y02E20/12
Inventor 刘海丁堂文司景忠王定国李煜
Owner CHONGQING SANFENG COVANTA ENVIRONMENTAL IND
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