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Method for preparing mineral fiber by using slag water quenching

A technology of mineral fiber and water-quenched slag, which is applied in the manufacture of tools and glass manufacturing equipment, etc., can solve the problems of mineral fiber loss of raw material source, difficulty in meeting mineral fiber demand, and affecting large-scale production of mineral fiber. Improved fiber-forming process conditions and good mixing uniformity

Inactive Publication Date: 2007-10-31
彭苏宁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the remaining large pieces of slag are very small (substantially nonexistent), which makes the production of mineral fibers lose an important raw material source, thereby affecting the larger-scale production of mineral fibers, and is difficult to meet the increasing market demand for mineral fibers. need

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Configure 1 ton of raw material, test its acidity coefficient M, and get M=1.02. According to the acidity coefficient, configure the percentage of the total weight of each material: water-quenched slag 72%, that is, weigh 0.72T water-quenched slag. The conditioner is made of clay, and the binder is made of cement, which are respectively configured according to 12% and 3% of the total weight of raw materials, that is, respectively weighing 0.12T and 0.03T of the clay and cement, and sending the above-mentioned materials into the mixer for mixing. It is thoroughly mixed to form a uniformly distributed compact. Use a briquetting machine to press all the pressed materials into spherical briquettes with a diameter of 40-150 mm, and the size of the briquettes depends on the diameter of the melting furnace. Then the briquette is sent to the melting furnace for melting with a conveyor belt, and the melting temperature is controlled at 1550°C. The melt is blown into mineral fibe...

Embodiment 2

[0018] Configure 1 ton of raw material, test its acidity coefficient M, and get M=1.06. According to the acidity coefficient, configure the percentage of the total weight of each material: water-quenched slag 75%, that is, weigh 0.75T water-quenched slag. Fly ash is selected as the regulator, quicklime and cement are used as the binder, and they are respectively configured according to 20%, 4% and 1% of the total weight of the raw materials, that is, 0.2T of fly ash, 0.04T of quicklime, and 0.01T of cement are weighed respectively. Send the above-mentioned materials into a mixer for stirring and mixing, make them fully mixed, and become a uniformly distributed pressed material. Use a block making machine to press all the pressed materials into cylindrical compacts with a diameter of 40-150 mm and a height of 40-100 mm. The briquette is sent to a melting furnace for melting by a conveyor belt, and the melting temperature is controlled at 1400°C. The melt is blown into mineral f...

Embodiment 3

[0020] Configure 2 tons of raw materials, test its acidity coefficient M, and get M=0.88. According to the acidity coefficient, configure the percentage of the total raw material weight of each material: 65% of water-quenched slag, that is, weigh 1.3T water-quenched slag. Silica is selected as the regulator, and quicklime and magnesite soil are used as the binder. They are respectively configured according to 17%, 8%, and 10% of the total weight of the raw materials, that is, weighing 0.34T of silica, 0.20T of quicklime, and 0.16% of magnesite soil. T, send the above-mentioned materials into a mixer for stirring and mixing, make them fully mixed, and become a uniformly distributed pressed material. The pressed material is all pressed into a cubic prism briquette with a side length of 40-200 mm with a block making machine. The briquette is sent to a melting furnace for melting by a conveyor belt, and the melting temperature is controlled at 1400°C. The melt is blown into minera...

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Abstract

The invention discloses a preparing method of mineral fiber with water-hardened slag, which comprises the following steps: 1, allocating raw material with mass ratio as 65-85% water-hardened slag, 5-25% regulator and 3-10% adhensive; stirring the raw material evenly; forming pressed material; 2, pressing the pressed material to stereo wafer with block press; getting stereo wafer; comprising prism wafer, cylindrical wafer and sphere wafer; 3, putting the wafer into cupola; melting; blowing to mineral fiber through fiber machine; controlling the melting temperature at 1450-1550 deg. c; controlling the fiber temperature at 1250-1450 deg. c. This invention possesses good mixing uniformity, which is fit for improving technological condition of fiber.

Description

technical field [0001] The invention relates to a method for preparing mineral fibers, in particular to a method for preparing mineral fibers by using water-quenched slag. Background technique [0002] At present, most of the slag discharged from the ironmaking blast furnace is the water-quenched slag after water quenching. Because: First, slag has been widely used, most of which are used as one of the raw materials for making cement and or concrete. The slag after water quenching is in the form of powdery materials, which is very suitable for the requirements that cement or concrete raw materials must be finely crushed, which saves The original process of crushing large pieces of slag is easy for users to use and improves the economic value of slag; secondly, the production efficiency of the iron-making blast furnaces in existing iron and steel plants is high, and the amount of slag discharge is large, which is impossible as before. In that way, let the large pieces of sla...

Claims

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Application Information

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IPC IPC(8): C03B37/06C03C13/06
Inventor 彭苏宁
Owner 彭苏宁