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

Preparation method and application method of low-carbon cement clinker

A technology of low-carbon cement clinker and application method, applied in cement production and other directions, can solve the problems of insufficient cement strength, impossible large-scale production, difficult control of production conditions, etc., and achieve excellent early strength, low resource load, and reduced The effect of coal consumption

Inactive Publication Date: 2016-12-14
郑州市王楼水泥工业有限公司
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the patent record of application number 201210022401 contains 25-30% -C2S; 25-30% -C2S; 28-40% C4A3 Š; 4-12% C4AF; 4-8% amorphous Phase substance, the cement improves the early strength of cement by generating a large amount of -C2S, but the generation conditions are difficult to control
The patent application number 200610045503.6 records the Belite-barium calcium sulphoaluminate cement compounded with barium calcium sulphoaluminate minerals and belite minerals, but due to the limitation of barium sulfate resources, large-scale production is impossible
Another study shows that the 3-day and 28-day strength of cement cannot meet the engineering requirements because of the low hydration activity of Belite minerals

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 and application method of low-carbon cement clinker
  • Preparation method and application method of low-carbon cement clinker
  • Preparation method and application method of low-carbon cement clinker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of preparation method of low-carbon cement clinker, the preparation method of described low-carbon cement clinker comprises the steps:

[0033] Step 1: Raw material preparation: The raw materials for the preparation of low-carbon cement clinker include silicon-aluminum-containing materials, limestone and gypsum, and the weight-number ratios of each raw material are: 30 parts of silicon-aluminum-containing materials, 60 parts of limestone and 10 parts of gypsum;

[0034] Step 2: Prepare fine material: mix and grind each raw material in the raw material mill after mixing according to the weight parts of each raw material, the raw material fineness is passed through a sieve of 80 microns, and the sieved weight is 9% of the raw material weight, and the fine material is obtained;

[0035] Step 3: calcining: calcining the fine material prepared in step 2 for 20 minutes at high temperature, the calcining temperature is 1280°C;

[0036] Step 4: Cooling: After cooling the...

Embodiment 2

[0047] A kind of preparation method of low-carbon cement clinker, the preparation method of described low-carbon cement clinker comprises the steps:

[0048] Step 1: Raw material preparation: The raw materials for the preparation of low-carbon cement clinker include silicon-aluminum-containing materials, limestone and gypsum, and the weight-number ratios of each raw material are: 30 parts of silicon-aluminum-containing materials, 59 parts of limestone and 11 parts of gypsum;

[0049] Step 2: Prepare fine material: mix and grind each raw material in the raw material mill after mixing according to the weight parts of each raw material, the raw material fineness passes through a sieve of 80 microns, and the residual weight of the sieve is 8% of the raw material weight, and the fine material is obtained;

[0050] Step 3: calcining: calcining the fine material prepared in step 2 at high temperature for 22 minutes, the calcining temperature is 1300°C;

[0051] Step 4: Cooling: After...

Embodiment 3

[0060] A kind of preparation method of low-carbon cement clinker, the preparation method of described low-carbon cement clinker comprises the steps:

[0061] Step 1: Raw material preparation: The raw materials for the preparation of low-carbon cement clinker include silicon-aluminum-containing materials, limestone and gypsum, and the weight-number ratios of each raw material are: 26 parts of silicon-aluminum-containing materials, 62 parts of limestone and 12 parts of gypsum;

[0062] Step 2: Prepare fine material: mix and grind each raw material in the raw material mill after mixing according to the weight parts of each raw material, the raw material fineness passes through a sieve of 80 microns, and the residual weight after sieving is 7% of the raw material weight, so as to obtain the fine material;

[0063] Step 3: calcining: calcining the fine material prepared in step 2 for 25 minutes at high temperature, the calcining temperature is 1250°C;

[0064] Step 4: Cooling: Afte...

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
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method and an application method of low-carbon cement clinker. The low-carbon cement clinker is prepared by the steps: uniformly mixing raw materials of silicon-aluminum containing material, limestone and gypsum according to a certain ratio; grinding the mixture to form a raw material, wherein the grain size of the ground raw material requires that residue on a 0.08-mm square hole sieve is less than 10%; calcining the ground raw material for 20 to 40 minutes at the calcining temperature of 1200 to 1300 DEG C; cooling to obtain the low-carbon cement clinker. The low-carbon cement clinker provided by the invention comprises 10 to 25 percent of beta-dicalcium silicate, 5 to 15 percent of calcium sulphosilicate, 15 to 45 percent of tricalcium silicate and 15 to 45 percent of calcium sulphoaluminate. 0.01 to 15 percent of gypsum and 0.01 to 15 percent of limestone are added into the low-carbon cement clinker and then are ground to obtain a cement finished product. The preparation method and the application method of the low-carbon cement clinker have the advantages of low calcining temperature, short coagulation time, high hardening speed, high early strength and continuously enhanced later strength.

Description

technical field [0001] The invention belongs to the technical field of cement clinker production, and in particular relates to a preparation method of low-carbon cement clinker and an application method thereof. Background technique [0002] The raw materials for the production of traditional Portland cement are mainly lime, clay and other silicon, aluminum and iron correction materials. The main mineral components of cement clinker are tricalcium silicate, dicalcium silicate, tricalcium aluminate and ferroaluminate Four calcium. Usually tricalcium silicate accounts for 60-70% of the mineral composition, dicalcium silicate accounts for 15-25%, tricalcium aluminate accounts for 5-10%, and tetracalcium aluminoferrite accounts for 10-15%. The traditional Portland cement clinker has a high content of tricalcium silicate minerals, which not only requires a high firing temperature, but also requires a high grade of limestone. Therefore, the traditional cement industry is a typica...

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): C04B7/32
CPCC04B7/323Y02P40/10
Inventor 景东皓宋丹于焕洲刘朝辉刘艳军周梦鑫
Owner 郑州市王楼水泥工业有限公司
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