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Adhesive for pyrolusite sintering treatment and preparation method thereof

A technology of sintering treatment and adhesive, which is applied in the field of adhesive for pyrolusite sintering treatment and its preparation, to achieve significant economic benefits and environmental protection value, reduce costs, and improve drum strength

Active Publication Date: 2018-10-16
贵州铜仁和诚锰合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned existing technologies all adjust and control the sintering process and process parameters, and also improve the utilization factor, yield, energy consumption and drum strength. However, the above-mentioned technologies do not start from manganese ore. However, there is no technical literature that makes the binder used in the sintering process of manganese ore effective in the sintering process of manganese ore, thereby improving the availability factor, yield, energy consumption and drum strength after sintering of manganese ore. Therefore, this researcher combined the long-term processing and exploration practice to explore the raw materials and preparation methods of the binder used in the manganese ore sintering process, and then provided a new idea for the manganese ore sintering process

Method used

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  • Adhesive for pyrolusite sintering treatment and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An adhesive for pyrolusite sintering treatment, the raw material components are 2kg of yellow mud, 10kg of plant ash, 2kg of phosphogypsum, 0.2kg of cement, 3kg of straw powder, 1kg of urea, 1kg of dextrin, 2kg of starch, 2kg of paocyanidin by weight 0.5kg, furfural resin 0.7kg, calcium dihydrogen phosphate 0.01kg, silica powder 0.6kg.

[0023] According to the preparation method, in the process of mixing raw materials, after adding water for stirring treatment, ultrasonic treatment is adopted for 20 minutes, and the frequency of ultrasonic wave is controlled at 100 Hz.

[0024] The silica powder is 180 meshes.

[0025] The straw powder is a mixture of wheat straw powder, corn straw powder and sugarcane straw powder, and the mixing ratio is 5:7:9.

Embodiment 2

[0027] An adhesive for pyrolusite sintering treatment, the raw material components are 7kg of yellow mud, 13kg of plant ash, 7kg of phosphogypsum, 0.5kg of cement, 5kg of straw powder, 3kg of urea, 5kg of dextrin, 3kg of starch, 5kg of stalk powder by weight 1.3kg, furfural resin 1.5kg, calcium dihydrogen phosphate 0.03kg, silicon dioxide powder 1.4kg.

[0028] According to the preparation method, in the process of mixing the raw materials, after adding water to carry out the stirring treatment, ultrasonic treatment is adopted for 30 minutes, and the frequency of the ultrasonic wave is controlled at 700 Hz.

[0029] Specifically include the following steps:

[0030] (1) After mixing yellow mud, plant ash, phosphogypsum, urea, dextrin, starch, furfural resin, and calcium dihydrogen phosphate, add water that accounts for 20% of the weight of the mixture, and adjust its temperature to 100 ° C for 10 s , and then cooled to room temperature for 10s, and then ultrasonically treated...

Embodiment 3

[0035] An adhesive for pyrolusite sintering treatment, the raw material components are 3kg of yellow mud, 11kg of plant ash, 3kg of phosphogypsum, 0.3kg of cement, 3.1kg of straw powder, 1.76kg of urea, 2kg of dextrin, 2.13kg of starch, Paohua alkali 1kg, furfural resin 0.9kg, calcium dihydrogen phosphate 0.015kg, silicon dioxide powder 0.69kg.

[0036] Its preparation method specifically comprises the following steps:

[0037] (1) After mixing yellow mud, plant ash, phosphogypsum, urea, dextrin, starch, furfural resin, and calcium dihydrogen phosphate, add water that accounts for 30% of the weight of the mixture, and adjust its temperature to 130 ° C for 20 s , and then cooled to normal temperature for 60s, and then ultrasonically treated for 30min, the frequency of ultrasonic wave was 700Hz, and then cement, straw powder and Paoflorine were added in sequence, and during the adding process, the temperature was adjusted from normal temperature to the temperature according to t...

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Abstract

The invention relates to the technical field of steelmaking treating, in particular to an adhesive for pyrolusite sintering and a preparing method of the adhesive. Yellow mud, plant ash, ardealite, cement, straw powder, urea, dextrin, starch, silicate of soda, furfural resin, monocalcium phosphate and silicon dioxide powder serve as raw materials, and control over technological parameters and adjustment of technological steps are carried out on the ratio of the raw materials and the preparing method of the adhesive, so that the quality of sintered pyrolusite blocks can be improved through the prepared adhesive, the energy consumption of solid fuel can be reduced, the cost for preparing the sintered pyrolusite blocks can be reduced, and the cost of slagging constituents and cooling agents used when sintered pyrolusite is applied to steelmaking is reduced; and in addition, compared with the prior art, the rate of finished products is at least increased by 3.2%, the utilization coefficient is at least increased by 1 t / m<2>.h, the drum strength is at least improved by 1%, and the energy consumption of the solid fuel is at least reduced by 2.1 kg / t.

Description

technical field [0001] The invention relates to the technical field of steelmaking treatment, in particular to a binder for pyrolusite sintering treatment and a preparation method thereof. Background technique [0002] Charge refers to the ore and other catalytic materials added to the smelting furnace. Iron ore, billet, pig iron, scrap steel, ore powder, coking coal, and ferroalloy all belong to the charge. Manganese ore powder is a kind of charge. my country's manganese ore resources are scarce, the grade of manganese ore is low, and the impurity content is high, the ore structure is complex, and the embedded particle size is fine. Therefore, it must be enriched by flotation and sintered to make high-grade manganese ore sintered piece. Manganese ore powder agglomeration includes three processes: briquetting, sintering and pelletizing. The current manganese ore powder sintering process has the problems of high solid fuel consumption, poor sinter strength and low output. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/243C22B1/244
Inventor 肖军
Owner 贵州铜仁和诚锰合金有限公司
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