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

Fly ash washing device based on carbon dioxide hardening and tempering, and method

A carbon dioxide and water washing device technology, which is applied to chemical instruments and methods, cement production, transportation and packaging, and can solve the problems of high energy consumption and high evaporation water

Pending Publication Date: 2021-01-29
NANJING NORMAL UNIVERSITY +1
View PDF16 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a carbon dioxide-based fly ash washing device and method, which can solve the problems of high subsequent evaporation and high energy consumption of the existing fly ash washing device through the conditioning effect of carbon dioxide on the slurry

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
  • Fly ash washing device based on carbon dioxide hardening and tempering, and method
  • Fly ash washing device based on carbon dioxide hardening and tempering, and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Unless indicated by a separate definition, the directions of up, down, left, right, front, rear, inner and outer referred to herein are the directions of up, down, left, right, front and rear in the drawings shown in the present invention. , inside and outside directions shall prevail, and are explained together here.

[0028] The present invention provides such as figure 1 and figure 2 The shown fly ash water washing device...

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 fly ash washing device based on carbon dioxide hardening and tempering, and a method. The device comprises a stirring tank body and a stirring device arranged in the stirringtank body, wherein the stirring device comprises a hollow stirring rod and hollow stirring blades; the hollow stirring rod is a hollow shaft body; the bottom end of the hollow stirring rod is communicated with the hollow stirring blades; the multiple hollow stirring blades are evenly arranged around the bottom end of the hollow stirring rod in the circumferential direction of the hollow stirringrod; air holes, water drainage pipes and injection pipes are arranged on blades of the hollow stirring blades; and a carbon dioxide circulating pipeline is also arranged outside the stirring tank body. According to the fly ash washing device based on carbon dioxide hardening and tempering, and the method, the pH of water is reduced through carbon dioxide, so that dissolution of chlorine salt withlow water solubility is promoted, meanwhile, dissolution of heavy metal and calcium is reduced, and the effects of saving energy consumption and strengthening component separation are achieved.

Description

technical field [0001] The invention relates to the field of solid waste treatment, in particular to a device and method for washing fly ash based on carbon dioxide conditioning. Background technique [0002] Incineration technology can realize rapid volume reduction and energy utilization of waste, and has been widely used at present. However, the fly ash produced in the waste incineration process contains heavy metals, dioxins, etc., which are hazardous wastes and pose a serious threat to the environment. Directly incinerating fly ash for safe landfilling is costly and unbearable. [0003] The current temporary disposal method is low-cost sanitary landfill after solidification and stabilization treatment. However, with the shortage of landfill sites and doubts about the long-term stability of solidified and stabilized fly ash, how to better handle and dispose of fly ash has become a problem. urgent needs at this stage. The co-processing of fly ash in a cement kiln can, o...

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
IPC IPC(8): B09B3/00B09B5/00C04B7/38C04B7/28
CPCB09B3/00B09B5/00C04B7/38C04B7/28B09B2101/30Y02P40/10
Inventor 王昕晔赵润博左武涂勇崔灵丰武倩董光辉马贵林赵传文
Owner NANJING NORMAL UNIVERSITY
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