Cement production method
A production method and technology for cement raw meal, applied in cement production, clinker production and other directions, can solve the problems of high energy consumption, low liquid phase, slow reaction rate, etc., to reduce the amount of flue gas and dust, mass transfer Effect of increased heat transfer rate, reduced requirement for homogenization
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0039] The limestone mine in Shifang, Sichuan, where the dry clay and iron slag are crushed by the jaw crusher into 10-30mm granular materials is transported into the raw material silo, and weighed as 80% limestone, 15% clay, and 5% iron ore by the belt. The proportion of slag is measured and batched, and the granular materials after batching are conveyed into the vertical pulverizer by the belt conveyor for grinding, and the fineness is controlled at 80um. The sieve residue is less than 2 , adjust the amount of coal injected by the coal injection gun placed in the calciner outside the kiln. The temperature in the calciner is 870°C, and the decomposed biomass falls into the melting and firing furnace.
[0040] Spray pulverized coal and pure oxygen into the spray gun submerged in the melt in the melting and firing furnace, and carry out submerged combustion for heat supply, and control the liquid phase temperature of the molten pool at 1450-1500°C to cause silicification of calci...
Embodiment 2
[0044]The calcite mine in Anxian County, Sichuan Province, the dry loess ore and iron slag from Shifang are crushed by the jaw crusher into 10-30mm granular materials and transported into the raw material silo, and weighed by the belt as 80% calcite, 15% loess, 5 The proportion of iron ore slag is measured and batched. The granular materials after batching are conveyed into the vertical pulverizer for grinding by the belt conveyor, and the fineness is controlled at 80um. The sieve residue is less than 2 , adjust the amount of CO gas injected into the spray gun in the calciner outside the kiln, the temperature in the calciner is 896°C, and the decomposed biomass falls into the melting and firing furnace.
[0045] To the spray gun submerged in the melting body in the melting and firing furnace, CO and 800°C combustion air are injected at high speed to carry out submerged combustion and heat supply, and the liquid phase temperature of the molten pool is controlled at 1370-1420°C to...
Embodiment 3
[0050] Dolomite ore (chalk), dry shale ore and sulfuric acid slag from Mianyang, Sichuan, where they are produced, are crushed by a jaw crusher into 10-30mm granular materials and transported to the raw material silo, and weighed as 80% dolomite and 15% page by belt measurement. Rock and 5% sulfuric acid slag are used for metering and batching, and the granular materials after batching are conveyed into the vertical grinding mill for grinding by the belt conveyor, and the fineness is controlled at 80um. The sieve residue is less than 2 , adjust the amount of natural gas injected into the spray gun placed in the calciner outside the kiln, the temperature in the calciner is 880°C, and the decomposed biomass falls into the melting furnace.
[0051] Spray natural gas and 50% oxygen-enriched air into the spray gun submerged in the molten body in the melting and firing furnace to carry out submerged combustion and heat supply, and control the liquid phase temperature of the molten poo...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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