Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method of sludge carbonization and reburning

A sludge charcoal and sludge technology, applied in chemical instruments and methods, sludge treatment, pyrolysis sludge treatment, etc., can solve the problems of large electricity consumption, high sludge carbonization cost and low utilization rate, etc. The effect of solving energy regeneration, reducing electricity consumption and enriching the carbon energy market

Inactive Publication Date: 2020-09-15
上海梵煦环境科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Or drying and carbonization. Currently, the sludge carbonization cost is relatively high, and the electricity consumption is large. The carbonized sludge is directly landfilled or used as an adsorbent, but due to poor performance, the specific surface area is small, and the utilization rate is low. not adopted

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
  • A method of sludge carbonization and reburning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention is specifically described below in conjunction with accompanying drawing, as figure 1 as shown,

[0028] The feature of this embodiment is that it is a method for sludge carbonization and reburning, which includes the following steps: (1) Preheating process: transport the sludge to be treated to the preheating tank through the transport device and preheat it to 100°C-120°C ℃; (2) reaction tank reaction: transport the sludge preheated in step (1) to the reaction tank through the transport device at a temperature of 150 ℃, and the pressure is controlled at 7Mpa to stir and react, and keep the reaction for no less than 10min ~ 12min, The flue gas generated during the reburning process and the waste heat of the main furnace are introduced into the flue gas pipeline by the fan; (3) Cooling and cooling: transport the reacted sludge in step (2) to the cooling tank and stir for 1h to 2h to cool to 70°C to 80°C ℃; (4) Squeeze treatment: finely crush and mi...

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 for sludge carbonization and reburning, which comprises: sludge preheating reaction, sludge reaction in a low-temperature carbonization tank, cooling tank cooling and pressing treatment by a press machine, granulation by a granulator, and carbonization Mechanical carbonization and reburning, carbonization machine heat energy utilization and heat exchange reuse 8 major treatment processes. Beneficial effects of the present invention: energy recovery and reuse, reducing electricity consumption; the specific surface area of ​​biomass charcoal obtained by high-temperature reburning can reach 3000 2 m / g, the resulting biochar can be used not only as an adsorbent, but also as a soil improvement or slow-release fertilizer; it solves the problem of urban sludge and garbage accumulation, and at the same time enriches the carbon energy market. To a certain extent, the problem of energy regeneration is solved.

Description

technical field [0001] The invention relates to the technical field of chemical waste treatment, in particular to a method for sludge carbonization and reburning. Background technique [0002] Sewage and sludge are two systems that are equally important and closely related to solving water pollution problems. Sludge treatment and disposal is the guarantee for the final implementation of sewage treatment. In economically developed countries, sludge treatment and disposal is an extremely important link, and its investment accounts for about 50-70% of the total investment of sewage treatment plants. However, in the main methods of sludge treatment and disposal in my country, the water content of the activated sludge in the sewage field of the coal chemical industry can still reach about 80% after dehydration, and it is transported by car to the existing ash field for processing. After drying, it is transferred to the hazardous waste center for incineration and landfill treatmen...

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): C02F11/121C02F11/13C02F11/10C02F11/00C10B53/00C10B57/08C10B57/10B01J20/20B01J20/30C05D9/00C05G3/80C05G3/40C09K17/04
CPCB01J20/20B01J2220/4887C02F11/00C02F11/10C02F11/12C02F2303/06C05D9/00C05G3/80C09K17/04C10B53/00C10B57/08C10B57/10Y02P20/129
Inventor 顾振辉高伟曹建青
Owner 上海梵煦环境科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com