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Method for preparing square pavement decorative brick sintered by manganese residue solid waste

A technology of decorative bricks and manganese slag, which is applied in the field of industrial solid waste recycling to achieve the effects of reducing costs, improving pavement water, and saving color resources

Inactive Publication Date: 2015-06-24
张塘柏 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After investigation, there is only a technology in the market that uses a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The mass percent content is respectively 25% manganese slag solid waste, 5% ceramic powder, and 70% shale mixed grinding to prepare raw materials, and then add a certain amount of clear water (the amount of added clear water makes the raw material moisture content 15%) %) was stirred evenly and digested for 48 hours, then extruded by a vacuum press, and finally dried / roasted / cooled to obtain a product. Drying: Since the raw material drying sensitivity coefficient of this product is relatively high (greater than 1), it is not suitable for rapid drying. Therefore, the formed blank should be dried naturally for 24 hours, and then placed in a drying room with a temperature of 80 degrees. The drying time is 16 Hours, the blank has no cracks and has good strength. Roasting: The blank is roasted in a temperature gradient furnace, the roasting conditions are as follows, (a) the heating rate is less than 150 degrees per hour; (b) the roasting cycle is 8 hours; the maximum roasti...

Embodiment 2

[0021] The mass percent content is respectively 40% manganese slag solid waste, 7% ceramic powder, and 53% shale mixed grinding to prepare raw materials, then add a certain amount of clear water (the amount of added clear water makes the raw material moisture content 17 %) was stirred evenly and digested for 48 hours, then extruded by a vacuum press, and finally dried / roasted / cooled to obtain a product. Drying: Since the raw material drying sensitivity coefficient of this product is relatively high (greater than 1), it is not suitable for rapid drying. Therefore, the formed blank should be dried naturally for 36 hours, and then placed in a drying room with a temperature of 95 degrees. The drying time is 18 hours. Hours, the blank has no cracks and has good strength. Roasting: The blank is roasted in a temperature gradient furnace, and the roasting conditions are as follows, (a) the heating rate is less than 150 degrees per hour; (b) the roasting cycle is 9 hours; the maximum r...

Embodiment 3

[0024] The mass percent content is respectively 50% of manganese slag solid waste, 10% of ceramic powder, and 40% of shale to be ground separately and then mixed to prepare raw materials, and then a certain amount of clear water is added (the amount of added clear water makes the raw materials contain water rate of 18%), stirred evenly and digested for 48 hours, then extruded by a vacuum press, and finally dried / roasted / cooled to obtain a product. Drying: Since the raw material drying sensitivity coefficient of this product is relatively high (greater than 1), it is not suitable for rapid drying. Therefore, the formed blank should be dried naturally for 48 hours, and then placed in a drying room with a temperature of 110 degrees. The drying time is 20 Hours, the blank has no cracks and has good strength. Roasting: The blank is roasted in a temperature gradient furnace, and the roasting conditions are as follows, (a) the heating rate is less than 150 degrees per hour; (b) the r...

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Abstract

The invention discloses a method for preparing a square pavement decorative brick sintered by manganese residue solid waste. The method comprises the following steps: (1) preparing manganese residue solid waste, shale and ceramic powder; (2) mixing the raw materials in the step (1) and grinding, or respectively grinding and mixing; (3) adding clean water into the mixture obtained in the step (2), uniformly stirring, digesting for 48 hours, and molding by pressing to prepare a blank, wherein the water content of raw materials of the mixture is 15-18 percent due to the amount of the added clean water; (4) drying, roasting and cooling the blank to obtain a product. The method has the advantages of large manganese residue doping amount, simple process and low production cost, and the prepared product has the advantages of no toxicity, attractive appearance, large tensile strength, abrasion resistance and strong water permeability.

Description

technical field [0001] The invention belongs to the field of industrial solid waste recycling technology, and in particular relates to a preparation method of manganese slag solid waste sintered square pavement decorative bricks. Background technique [0002] Manganese metal is a key basic material in metallurgy, aerospace, chemical and other industrial sectors. Among many industrial sectors, the metallurgical industry is the most important manganese-consuming industry, and its manganese consumption accounts for more than 90% of the total manganese. Due to the needs of infrastructure construction, my country is the world's largest steel production base, and the amount of manganese metal used in my country is also the first in the world. China is the world's major manganese producer, and China's electrolytic manganese industry is mainly distributed in Hunan, Guizhou, Chongqing and other provinces and cities . Electrolytic manganese slag is a kind of industrial waste produced ...

Claims

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Application Information

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IPC IPC(8): C04B33/138C04B33/22
CPCY02P40/60
Inventor 张塘柏张卫平
Owner 张塘柏