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Method for producing stone plate by using melting blast furnace slag

A blast furnace slag and slate technology, which is applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of complex treatment of large slag, troublesome treatment process, time-consuming and laborious, and achieve low cost and economical treatment. Cost, simple production process

Inactive Publication Date: 2016-01-27
攀枝花环业冶金渣开发有限责任公司
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Problems solved by technology

[0002] In the prior art, the blast furnace slag produced in the process of blast furnace ironmaking is generally treated by cooling the blast furnace slag first, then crushing it and ball milling it as slag sand gravel, which is mainly used for concrete aggregate, but the processing process It is very troublesome, the cost is high, and it will be more complicated to deal with some large slags. Generally, it needs to be selected first, and then manually processed to meet the requirements of entering the crusher, and then crushed, which is time-consuming and laborious. Since the blast furnace slag is cooled The structure is stable and the strength is high. If the molten blast furnace slag can be directly solidified and formed into specific stones for building materials, it can save a lot of intermediate costs

Method used

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Embodiment Construction

[0010] The method of producing stone slabs from molten blast furnace slag is as follows: first, the molten blast furnace slag is introduced into the mold, then slowly cooled by gradually lowering the holding temperature, and finally the blast furnace slag is cooled and solidified to form Turn it out to get the required slate. The blast furnace slag in the molten state has a high temperature and can be poured into the mold through the slag pot. The blast furnace slag needs to be cooled slowly. If the cooling speed is too fast, it will lead to uneven cooling inside and outside, unstable structure, and prone to cracks or even broken. The mold used is made of materials with high melting point and stable structure, such as cast steel, refractory bricks, etc. After the blast furnace slag is fully solidified, it is turned out to ensure a more complete molding appearance. The stone slabs made by this method have good skid resistance, Freeze resistance and robustness.

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Abstract

The invention discloses a method for producing stone plate by using melting blast furnace slag, and belongs to the technical field of slag processing. The method comprises the following steps: introducing blast furnace slag in a molten state into a die, gradually reducing the heat insulation temperature to slowly cool, and turning out when the blast furnace slag is cooled, solidified and molded in order to obtain the required stone plate. The blast furnace slag in the molten state is directly introduced to the die and is cooled to form the stone plate, so waste resources are reused from the blast furnace processing point, so the processing cost is saved, and economic benefits are created; and the method for producing the stone plate has the advantages of simplicity, low cost, no harmful elements, environmental protection, reliability and stable structure.

Description

technical field [0001] The invention relates to the technical field of slag treatment, in particular to a method for using molten blast furnace slag to produce slate. Background technique [0002] In the prior art, the blast furnace slag produced in the process of blast furnace ironmaking is generally treated by cooling the blast furnace slag first, then crushing it and ball milling it as slag sand gravel, which is mainly used for concrete aggregate, but the processing process It is very troublesome, the cost is high, and it will be more complicated to deal with some large slags. Generally, it needs to be selected first, and then manually processed to meet the requirements of entering the crusher, and then crushed, which is time-consuming and laborious. Since the blast furnace slag is cooled The structure is stable and the strength is high. If the molten blast furnace slag can be directly solidified and formed into specific stones for building materials, a lot of intermediat...

Claims

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Application Information

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IPC IPC(8): C04B30/00C04B18/14
CPCY02W30/91
Inventor 鲜中菊杨志远
Owner 攀枝花环业冶金渣开发有限责任公司
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