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

Preparation method of light-weight and high-intensity coal ash ceramsites

A technology for fly ash ceramsite and fly ash, which is applied in the production of ceramic products, clay products, and ceramic materials, etc., can solve the problems of low strength, low porosity, low spheroidization rate, etc. The effect of increased ball rate and increased strength

Active Publication Date: 2017-02-15
PANZHIHUA UNIV
View PDF3 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: low ball forming rate, low

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
  • Preparation method of light-weight and high-intensity coal ash ceramsites
  • Preparation method of light-weight and high-intensity coal ash ceramsites
  • Preparation method of light-weight and high-intensity coal ash ceramsites

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] The present invention provides a method for preparing lightweight and high-strength fly ash ceramsite, which includes the following steps: weighing fly ash, pore forming agent, flux, binding agent and reinforcing agent, ball milling, and adding disc granulator to perform Granulation and calcining to obtain lightweight and high-strength fly ash ceramsite.

[0018] Wherein, in the above-mentioned preparation method of light-weight high-strength fly ash ceramsite, the added amount of the fly ash, pore former, flux, binding agent and reinforcing agent are respectively: in parts by weight, 70 parts by weight of fly ash ~90 parts, 0.5-4 parts of pore former, 0.5-4 parts of flux, 5.5-17 parts of binding agent, 1-10 parts of reinforcing agent.

[0019] In order to improve the porosity, the present invention adds limestone as a pore-forming agent and fluxing agent. Limestone can be decomposed to produce CO at high temperatures. 2 The gas plays the role of foaming, and at the same tim...

Embodiment 1～2

[0027] Examples 1-2 Preparation of ceramsite by the method of the present invention

[0028] Dry the raw materials to a moisture content of ≤6wt%, and weigh various materials according to the formula in Table 1. The ground and mixed materials are all passed through a 250-mesh sieve, rolled into balls by a disc ball machine, and calcined at 1100°C to obtain a lightweight high-strength fly ash ceramsite product.

[0029] Table 1 Production ratio of fly ash ceramsite

[0030]

[0031]

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 belongs to the field of manufacturing of ceramsites, and particularly relates to a preparation method of light-weight and high-intensity coal ash ceramsites. Aiming at the problems of low balling rate, low porosity, low intensity and the like during preparation of the ceramsites from coal ash in the prior art, the invention provides the preparation method of the light-weight and high-intensity coal ash ceramsites. The preparation method comprises the following steps: adding a pore forming material, a fluxing agent, a binding agent and an enhancer in coal ash, controlling the particle size and the moisture content of the raw materials, and performing granulation through a disk granulator. By the reasonable cooperation of the pore forming material, the fluxing agent, the binding agent and the enhancer, the prepared coal ash ceramsites are high in porosity and balling rate, and the intensity of the ceramsites is substantially enhanced; the preparation method has obvious economic benefits.

Description

Technical field [0001] The invention belongs to the field of ceramsite production, and specifically relates to a preparation method of lightweight and high-strength fly ash ceramsite. Background technique [0002] Fly ash is one of the largest industrial waste residues in my country. With the development of the power industry, the discharge of fly ash from coal-fired power plants is increasing year by year. If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere. If discharged into the water system, the river will be blocked, and the toxic chemicals in it will also cause harm to humans and organisms. At present, the main use of fly ash is as a concrete admixture, with low added value. In order to make full use of fly ash to develop high value-added products, fly ash can be developed into fly ash ceramsite. The main raw material of fly ash ceramsite is fly ash (accounting for about 80% of the total raw materials) mixed with a proper proport...

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): C04B33/135C04B33/13C04B33/132C04B38/06
CPCC04B33/131C04B33/1324C04B33/1352C04B38/009C04B2235/3217C04B2235/3427C04B2235/349C04B2235/442C04B38/06Y02P40/60
Inventor 李亮
Owner PANZHIHUA UNIV
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