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

A kind of Portland cement clinker and its preparation method and production equipment

A Portland cement and production equipment technology, applied in cement production, etc., can solve the problems of occupying land resources, occupying large land, water pollution, etc.

Active Publication Date: 2021-06-08
吉林亚泰明城水泥有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dust removal ash is the soot and dust collected by the dust collection system of the steel plant; graphite tailings are waste rocks, dumped soil and tailings produced during the mining of graphite; surrounding steel plants produce a large amount of dust removal ash every year, and the comprehensive utilization rate does not exceed 10%. Accumulation occupies a large amount of land resources, causing environmental pollution
The stockpiling of graphite tailings occupies a large amount of land, destroys the land, pollutes the water body, endangers personal safety and causes property loss

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
  • A kind of Portland cement clinker and its preparation method and production equipment
  • A kind of Portland cement clinker and its preparation method and production equipment
  • A kind of Portland cement clinker and its preparation method and production equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A Portland cement clinker, the cement clinker formula includes 80-84% of limestone, 4-8% of dedusting ash, 4-8% of graphite tailings, and 4-6% of silica.

[0030] 2. A Portland cement clinker according to claim 1, characterized in that the CaO in the limestone is greater than 47%, and the SiO in the silica 2 More than 80%, Fe in dust removal ash 2 o 3 More than 40%, Al in graphite tailings 2 o 3 Greater than 17%.

[0031] The preparation method of Portland cement clinker comprises the following steps:

[0032] S1: Put the raw material prepared according to the proportion into the raw material mill for grinding, and control the amount of water spraying at 0.5-2 cubic meters per hour while grinding, and the grinding pressure at 8Mpa;

[0033] S2: drying the raw meal after grinding, wherein the comprehensive moisture content of the incoming raw meal is less than 5%, and the moisture content of the outgoing raw meal is less than 0.5%;

[0034] S3: pass the dried raw m...

Embodiment 2

[0046] A Portland cement clinker, the formula of the cement clinker includes 81.8% of limestone, 6.1% of dedusting ash, 6.4% of graphite tailings and 5.6% of silica. Production mode is the same as embodiment one.

Embodiment 3

[0048] A Portland cement clinker, the formula of the cement clinker includes 80.4% of limestone, 7.2% of dedusting ash, 7.4% of graphite tailings and 5% of silica. Production mode is the same as embodiment one.

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
decomposition efficiencyaaaaaaaaaa
Login to View More

Abstract

The invention discloses a Portland cement clinker. The formula of the cement clinker comprises 80-84% of limestone, 4-8% of dedusting ash, 4-8% of graphite tailings and 4-6% of silica. The above four-component raw materials are mixed in proportion in the blending warehouse and enter the raw meal mill for grinding together. The raw meal after grinding enters the homogenization warehouse for homogenization, and the homogenized raw meal is fed to the preheater for preheating and decomposition. The decomposed raw meal enters the rotary kiln for calcination into Portland cement clinker. Due to the small fineness of dust removal dust and graphite tailings, the grindability of raw meal is improved, which is 8.3% lower than the traditional raw meal fineness, and the power consumption of raw meal grinding is reduced by about 1.5kwh / t, and the particle size of raw meal is fine The combination is more reasonable, the burnability of the raw meal is improved, and the output is increased by 5%.

Description

technical field [0001] The invention relates to the field of cement industry production technology and comprehensive utilization of industrial waste, in particular to a Portland cement clinker, a preparation method and production equipment thereof. Background technique [0002] Cement is one of the most used industrial products in the world. Portland cement clinker is fired at a high temperature, consumes a large amount of high-quality limestone resources, and produces a large amount of CO2 greenhouse gas and harmful gases such as SOx and NOx. At the same time, the mineral composition of Portland cement clinker is mainly C3S, C2S, C3A and C4AF. [0003] Dust removal ash is the soot and dust collected by the dust collection system of the steel plant; graphite tailings are waste rocks, dumped soil and tailings produced during the mining of graphite; surrounding steel plants produce a large amount of dust removal ash every year, and the comprehensive utilization rate does not ...

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 Patents(China)
IPC IPC(8): C04B7/36C04B7/38C04B7/43C04B7/26
CPCC04B7/26C04B7/36C04B7/38C04B7/43C04B7/436Y02P40/10
Inventor 任国强张振良石云武潘阳李传海吕序国孙大雷衣占军柳亮
Owner 吉林亚泰明城水泥有限公司
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