Low-temperature calcining technology for cement clinker

A low-temperature calcination and cement clinker technology, which is applied in clinker production, cement production, etc., can solve problems such as difficult adaptation, and achieve the effects of reducing burning coal consumption, reducing energy consumption, improving calciner capacity and operating stability

Inactive Publication Date: 2015-09-30
JIAHUA SPECIAL CEMENT
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional control methods have gradually fou

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
  • Low-temperature calcining technology for cement clinker
  • Low-temperature calcining technology for cement clinker
  • Low-temperature calcining technology for cement clinker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Using the raw material mix ratio of general portland cement, the three ratios of cement clinker are controlled as follows: KH (lime saturation): 0.90±0.02, SM (silicon ratio): 2.3±0.1, IM (aluminum ratio): 1.5 ±0.1. Add 0.5% control agent to prepare raw meal. The raw meal is pulverized by the raw meal mill and then enters the homogenization storage. The decomposition furnace controls the decomposition rate to 96%, and then calcines at a high temperature of 1380 ° C. The calcined clinker enters the clinker warehouse after cooling. The physical properties of the clinker are shown in Table 1.

[0030] Table 1

[0031]

Embodiment 2

[0033] Using the raw material mix ratio of general portland cement, the three ratios of cement clinker are controlled as follows: KH (lime saturation): 0.90±0.02, SM (silicon ratio): 2.3±0.1, IM (aluminum ratio): 1.5 ±0.1. Add 1.0% control agent to prepare raw meal. The raw meal is pulverized by the raw meal mill and enters the homogenization storage. The decomposition furnace controls the decomposition rate to 96%, and then calcines at a high temperature of 1360°C. The calcined clinker enters the clinker warehouse after cooling. The physical properties of the clinker are shown in Table 2.

[0034] Table 2

[0035]

Embodiment 3

[0037] Using the raw material mix ratio of general portland cement, the three ratios of cement clinker are controlled as follows: KH (lime saturation): 0.90±0.02, SM (silicon ratio): 2.3±0.1, IM (aluminum ratio): 1.5 ±0.1. Add 2.2% control agent to prepare raw meal. The raw meal is ground by the raw meal mill and then enters the homogenization storage. The decomposition furnace controls the decomposition rate to 97%, and then calcines at a high temperature of 1340 ° C. The calcined clinker enters the clinker warehouse after cooling. The physical properties of the clinker are shown in Table 3.

[0038] table 3

[0039]

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 discloses a low-temperature calcining technology for a cement clinker. According to the low-temperature calcining technology for the cement clinker, a control agent is used as a material component and doped in a raw material according to a certain ratio, and subjected to raw material preparation in a measuring scale; the control agent in the low-temperature calcining technology for the cement clinker disclosed by the invention is an additive needing to be added to form a small-particle clinker, and has the main functions of improving the liquid-phase surface tension of the clinker and controlling the dimensions of the clinker; the control agent is selected from natural gypsum, hard gypsum, fluorapatite, copper slag, steel slag, zinc slag, nickel slag, phosphorus slag, coal ash or the combinations thereof. The cement clinker prepared by the low-temperature calcining technology for the cement clinker provided by the invention has the beneficial effects of high quality, high yield, low consumption, low emission and the like.

Description

technical field [0001] The invention relates to a low-temperature calcination method of cement clinker, in particular to a low-temperature calcination method of a novel dry kiln. Background technique [0002] The cement industry is a resource- and energy-dependent basic raw material industry. my country is the world's largest cement producer and consumer. In 2012, my country's cement output accounted for 60% of the world's output. Cement production consumes a large amount of non-renewable natural resources such as limestone and clay, and consumes a large amount of energy such as coal and electricity. At the same time, it emits A large amount of waste gas such as carbon dioxide, sulfur dioxide and nitrogen oxides are released. Huge consumption of energy and resources has overwhelmed my country's mineral resources, and a large amount of waste gas emissions have exacerbated the greenhouse effect and acid rain, seriously polluting the environment. At present, the country mainly...

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): C04B7/44C04B7/42
CPCY02P40/121
Inventor 许毅刚陈雪梅阳运霞钟文
Owner JIAHUA SPECIAL CEMENT
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
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap