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

Red mud-containing briquette and preparation method thereof

A red mud and briquette technology, applied in the field of clean coal, can solve the problems of large land occupation and environmental pollution, and achieve the effects of reducing cultivated land occupation, low volatile matter, and realizing recycling

Inactive Publication Date: 2019-11-26
HENAN CHANGXING IND CO LTD
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the comprehensive utilization rate of red mud in my country is only 4%, and with the continuous increase of alumina production, it not only occupies a large amount of land, but also pollutes the environment.

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
  • Red mud-containing briquette and preparation method thereof
  • Red mud-containing briquette and preparation method thereof
  • Red mud-containing briquette and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 65 parts of mixed coal, add 5 parts of sintering red mud or Bayer red mud, 2 parts of gelatinized starch, and 21 parts of 90°C water, and mix evenly.

[0034] The red mud is soaked in the dispersant solution before being mixed in.

[0035] The coal includes 5 parts of 4-2mm, 30 parts of 2-0.25mm and 30 parts of ≤0.25mm graded coal powder or coal slime.

[0036] After the mold is pressed, let it dry naturally.

Embodiment 2

[0038] Take 65 parts of mixed coal, add 6 parts of sintering red mud or Bayer red mud, 2 parts of gelatinized starch, and 21 parts of 90°C water, and mix evenly.

[0039] The red mud is soaked in the dispersant solution before being mixed in.

[0040] The coal includes 5 parts of 4-2mm, 30 parts of 2-0.25mm and 30 parts of ≤0.25mm graded coal powder or coal slime.

[0041] After the mold is pressed, let it dry naturally.

Embodiment 3

[0043] Take 65 parts of mixed coal, add 7 parts of sintering red mud or Bayer red mud, 2 parts of gelatinized starch, and 21 parts of 90°C water, and mix evenly.

[0044] The red mud is soaked in the dispersant solution before being mixed in.

[0045] The coal includes 5 parts of 4-2mm, 30 parts of 2-0.25mm and 30 parts of ≤0.25mm graded coal powder or coal slime.

[0046] After the mold is pressed, let it dry naturally.

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 provides a red mud-containing briquette and a preparation method thereof. The red mud-containing briquette comprises, by weight, 60-70 parts of coal, 5-9 parts of red mud, 1-5 parts of adispersant and 2-5 parts of gelatinized starch, the dispersant is a naphthalene dispersant, and the coal is semi-coke or anthracite. The energy-saving, emission-reducing and environmentally-friendlybriquette is prepared by using pulverized coal as a main body and the red mud as a sulfur fixing agent and adding other substances such as a binding agent and the like, so the problem of red mud utilization can be solved, the problem of environmental pollution caused by the red mud and fire coal can also be solved, and the effect of treating wastes with wastes is achieved.

Description

technical field [0001] The invention relates to the technical field of clean coal, in particular to a briquette coal added with red mud and a preparation method thereof. Background technique [0002] Formed coal refers to processing one or several types of coal powder in the presence of a certain proportion of additives (binder, combustion improver and sulfur-fixing agent) according to certain particle size requirements, and under certain pressure, to process it into a Coal products with certain shape and physical and chemical properties. my country is a country where coal is the main energy source. Coal accounts for more than 75% of the total primary energy consumption, and more than 80% is used for direct combustion. The burning of environmental protection measures will cause environmental problems such as smog and acid rain. Therefore, it is more feasible to use front-end control measures to achieve emission reduction. The current status of energy consumption determines...

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): C10L5/02C10L5/10C10L9/10C10L10/02
CPCC10L5/02C10L5/10C10L9/10C10L10/02
Inventor 蒋晓辉郭焱高鹏刘江龙何小山席艺慧
Owner HENAN CHANGXING IND CO LTD
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