Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Lightweight aggregate based on coarse coal gasification slag and preparation method thereof

A technology for coal gasification and light aggregates, applied in the field of building materials, can solve the problems of industrial pollution of coal gasification coarse slag, and achieve the effects of reducing construction cost, excellent performance and low sintering temperature

Inactive Publication Date: 2019-04-12
BAOJI HUIDE SANFEI DEV & UTILIZATION CO LTD
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a light aggregate based on coal gasification coarse slag and its preparation method, using coal gasification coarse slag waste as the main raw material of light aggregate, which can effectively improve the The strength of the material expands the scope of application of lightweight aggregates, enabling lightweight aggregates to be used in high-rise buildings and long-span bridges, improving the durability of buildings and reducing construction costs; pollution problem

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of light aggregate based on coal gasification coarse slag is prepared according to the following steps:

[0038] Step 1: Weigh the following raw materials: 65g coal gasification coarse slag, 25g clay, 2g feldspar, 3g talcum powder, 0.2g silicon carbide whiskers, and 0.01g dispersant. Ball mill the coal gasification coarse slag to obtain finely ground coal gasification coarse slag; dry the clay at 80°C to constant weight to obtain dried clay, grind the dried clay and feldspar separately, and pass through a 200-mesh sieve to obtain clay powder and feldspar powder; add silicon carbide whiskers to 10g of water, then add a dispersant to fully stir and disperse to obtain a premix.

[0039] Step 2: Mix the premix with finely ground coal gasification slag, talc powder, clay powder, and feldspar powder, add 15 g of water, and mechanically stir for 1.5 hours to obtain a mixture.

[0040] Step 3, put the mixture into a tablet machine for compression molding, the compressio...

Embodiment 2

[0042] A kind of light aggregate based on coal gasification coarse slag is prepared according to the following steps:

[0043] Step 1: Weigh the following raw materials: 65g of coal gasification coarse slag, 30g of clay, 1g of feldspar, 3g of talc powder, 0.2g of silicon carbide whiskers, and 0.01g of dispersant. Ball mill the coal gasification coarse slag to obtain finely ground coal gasification coarse slag; dry the clay at 80°C to constant weight to obtain dried clay, grind the dried clay and feldspar separately, and pass through a 200-mesh sieve to obtain clay powder and feldspar powder; add silicon carbide whiskers to 10g of water, then add a dispersant to fully stir and disperse to obtain a premix.

[0044] Step 2: Mix the premix with finely ground coal gasification slag, talc powder, clay powder, and feldspar powder, add 20 g of water, and mechanically stir for 2 hours to obtain a mixture.

[0045] Step 3, put the mixture into a tablet machine for compression molding, ...

Embodiment 3

[0047] A kind of light aggregate based on coal gasification coarse slag is prepared according to the following steps:

[0048]Step 1: Weigh the following raw materials: 70g coal gasification coarse slag, 25g clay, 2g feldspar, 2g talcum powder, 0.3g silicon carbide whiskers, and 0.015g dispersant. Ball mill the coal gasification coarse slag to obtain finely ground coal gasification coarse slag; dry the clay at 80°C to constant weight to obtain dried clay, grind the dried clay and feldspar separately, and pass through a 200-mesh sieve to obtain clay powder and feldspar powder; add silicon carbide whiskers to 15g of water, then add a dispersant to fully stir and disperse to obtain a premix.

[0049] Step 2: Mix the premix with finely ground coal gasification slag, talc powder, clay powder, and feldspar powder, add 15 g of water, and mechanically stir for 1.8 hours to obtain a mixture.

[0050] Step 3, put the mixture into a tablet machine for compression molding, the compressio...

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

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a lightweight aggregate based on coarse coal gasification slag and a preparation method thereof. The lightweight aggregate is prepared from the following raw materials of the coarse coal gasification slag, clay, feldspar, talcum powder, water, silicon carbide whiskers and a dispersing agent. The preparation method comprises the steps that the raw materials are weighed and subjected to pretreatment, the raw materials obtained after pretreatment are mixed, water is added, mechanical stirring is conducted, and a mixture is obtained; the mixture is pressed, drying is conducted, and a green body is obtained; the green body is sintered, and the lightweight aggregate based on the coarse coal gasification slag is obtained. Accordingly, the lightweight aggregate based on thecoarse coal gasification slag serves as the main raw material, the strength of the lightweight aggregate can be effectively improved, the application range of the lightweight aggregate is extended, the lightweight aggregate can be applied to high-rise buildings and long-span bridges, the durability of the buildings is improved, and the building cost is lowered; meanwhile, the industrial pollutionproblem of the coarse coal gasification slag is solved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a lightweight aggregate based on coal gasification coarse slag and a preparation method thereof. Background technique [0002] At present, concrete is widely used in civil engineering, but the shortcomings of concrete itself such as poor toughness and self-heaviness seriously limit its application in high-rise buildings and long-span bridges. Lightweight aggregate has excellent engineering properties, such as small dead weight, heat preservation, heat insulation, high strength, frost resistance, corrosion resistance, crack resistance, etc., and has been widely used in concrete engineering, highways, airport roads and other fields. In addition to reducing the weight of structures, compared with ordinary concrete, lightweight aggregate concrete also has the advantages of good wear resistance, no alkali aggregate reaction, strong acid resistance, sound absorption and nois...

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): C04B18/02
CPCC04B18/023C04B18/065C04B14/10C04B14/045C04B14/042C04B14/4687C04B2103/408
Inventor 郭磊李祖仲魏召召张学磊郭雅丽王耀祖赵晓乐法春光孙建宏王英明
Owner BAOJI HUIDE SANFEI DEV & UTILIZATION CO LTD
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
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