Unlock instant, AI-driven research and patent intelligence for your innovation.

Sinter raw material consumption calculation method

A technology of raw material consumption and calculation method, applied in the direction of chemical process analysis/design, etc., can solve the problems of waste of manpower, material resources, large difference between firing rate and actual firing rate, large theoretical calculation error of raw material consumption, etc., to avoid Fluctuation, fast calculation, and obvious effect

Pending Publication Date: 2022-01-28
武汉钢铁有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The ore consumption of sintering ore has been calculated according to the burning loss theory of various raw materials produced by sintering. The calculation formula is: 1 ton of iron ore output = various iron ore dosage * (1- various iron ore moisture) * ( 1-burning loss of various iron ores)+dosage of various fluxes*(1-moisture of various fluxes)*(1-burning loss of various fluxes)+dosage of fuel*(1-moisture of fuel)*(1-moisture of fuel burning loss); 1 ton of sintered ore consumes iron raw materials = 1 / 1 ton of iron ore output, and the quantity of finished sintered ore is equivalent to the remaining iron material, flux and fuel, but comparing the theoretically calculated firing rate with the actual The difference in yield is very large, which makes the theoretical calculation error of raw material consumption very large. In order to verify the consumption of various raw materials for sintering, a large number of experimental studies must be carried out, which wastes manpower and material resources.

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
  • Sinter raw material consumption calculation method
  • Sinter raw material consumption calculation method
  • Sinter raw material consumption calculation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] In a certain month, the proportion of dry base mixed ore for sintering production is 100%, the proportion of quicklime is 6.5%, the proportion of limestone is 4.9%, the proportion of dolomite is 6.4%, the proportion of coal is 6.85%, and the amount of dust taken away by flue gas is 2.0kg / t , the non-accountable loss correction factor is calculated as 0.97).

[0099] 1) 8.05% burning loss of mixed ore, 9% burning loss of quicklime, 42.56% burning loss of limestone, 44% burning loss of dolomite, and 84% burning loss of coal;

[0100] 2) Production of sinter FeO is controlled at 8%;

[0101] 3) Bring the corresponding data into the formula for calculation;

[0102]

[0103] 4) See Table 1 for the comparison of calculation results and production statistics.

[0104] project Mixed ore quicklime limestone dolomite pulverized coal Calculation results 843.06 57.91 42.01 54.78 55.89 statistical results 850.50 56.36 43.66 56.36 54.71 ...

Embodiment 2

[0107] In a certain month, the proportion of dry base mixed ore for sintering production is 100%, the proportion of quicklime is 5.92%, the proportion of limestone is 4.78%, the proportion of dolomite is 7.6%, the proportion of coal is 6.82%, and the amount of dust taken away by flue gas is 2.0kg / t , the non-accountable loss correction factor is calculated as 0.97). The calculation results are compared with the production statistical data in Table 2.

[0108] 1) Detecting 6.75% burning loss of mixed ore, 3.47% burning loss of quicklime, 42.56% burning loss of limestone, 46.4% burning loss of dolomite, and 88.96% burning loss of coal;

[0109] 2) Production of sinter FeO is controlled at 8%;

[0110] 3) Bring the corresponding data into the formula for calculation;

[0111]

[0112] 4) See Table 2 for the comparison between the calculation results and the production statistics.

[0113]

[0114]

[0115] 5) The statistical measurement of production is basically equi...

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 relates to a sinter raw material consumption calculation method. According to the sinter raw material consumption calculation method, on the basis of a mass conservation theory, the influence of mass change caused by Fe oxidation / reduction on calculation of burning loss is considered, the influence of Fe oxidation introduction should be deducted from the mass change purely caused by material burning loss before and after sintering; the uncontrollable loss rate of a mixture and the amount of mine dust taken away along with flue gas are considered, and a traditional theoretical calculation method is changed on the basis that the iron raw material consumed by 1 ton of sinter is equal to 1 / 1 ton of iron ore output. The sinter raw material consumption calculation method provided by the invention is simple in principle, rapid in calculation and obvious in effect, can obviously avoid large fluctuation of uniformly mixed ore components, and meets the requirements of sintering and blast furnaces.

Description

technical field [0001] The invention belongs to the technical field of sintering ore consumption calculation, and in particular relates to a sintering ore raw material consumption calculation method. Background technique [0002] Under the condition of fierce competition in the steel industry, reducing costs is a powerful measure to maintain the competitiveness of enterprises. The dry basis consumption of various raw materials required for the production of tons of sinter (the consumption of removing surface water content, referred to as ore consumption) is one of the key economic assessment indicators, which directly affects the cost of sinter. Accurate calculation of sinter consumption is of great significance to control sinter cost and reduce raw material inventory. [0003] In production, the ore consumption required to produce 1 ton of sinter is usually back-calculated based on the periodic mixing yard inventory and blast furnace sinter consumption statistics. However...

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): G16C20/10C22B1/16
CPCG16C20/10C22B1/16
Inventor 李井成蒋国波孙庆星范维国罗之礼
Owner 武汉钢铁有限公司