Method for producing baking-free slag bricks by using steel slag sludge of rotating furnace

A converter steel slag and slag brick technology, applied in chemical instruments and methods, mixed operation control devices, sustainable waste treatment, etc., can solve the problems of converter tailings and converter tailings sludge occupying land, polluting the environment, etc., and achieve environmental protection , save energy, solve the effect of occupying land and polluting the environment

Active Publication Date: 2012-09-05
鞍钢绿色资源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for producing non-burning slag bricks with converter steel slag mud. The method uses converter tailings mud and converter tailings as the main raw materials, and adds a small amount of Portland cement and water to mix and press to make non-burning bricks. Bricks, this method does not require any treatment of raw materials and can be used directly. After forming, natural maintenance is carried out to save energy, and it does not need to add any equipment. The production of non-burning slag bricks solves the problem of converter tailings and converter tailings. land and pollution problems

Method used

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  • Method for producing baking-free slag bricks by using steel slag sludge of rotating furnace
  • Method for producing baking-free slag bricks by using steel slag sludge of rotating furnace
  • Method for producing baking-free slag bricks by using steel slag sludge of rotating furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 5% of 32.5 grade Portland slag cement, 40% of converter tailings, and 55% of converter tailings sludge into the mixing equipment, add 5% of water for stirring, and mix for 15 minutes. After mixing, enter The brick press is pressed and formed, and the adobes are sprinkled and maintained for 3 times after stacking. After 15 days, the finished product leaves the factory. The percentages of the above ingredients are percentages by weight.

[0021] The factory inspection results are as follows:

[0022]

Embodiment 2

[0024] Add 1000kg of 20% converter tailings and 80% converter tailings mud into the mixing equipment, stir and mix for 15 minutes. After mixing, enter the brick press for pressing and molding. Tianhou finished products leave the factory, and the percentages of the above ingredients are percentages by weight

[0025] The factory inspection results are as follows:

[0026]

Embodiment 3

[0028] Add 2% of 32.5 grade Portland slag cement, 48% of converter tailings, and 50% of converter tailings sludge into the mixing equipment, add 4% of water for stirring, and mix for 15 minutes. After mixing, enter The brick press is pressed and formed, and the adobes are sprinkled and maintained for 3 times after stacking. After 15 days, the finished product leaves the factory. The percentages of the above ingredients are percentages by weight.

[0029] The factory inspection results are as follows:

[0030]

[0031] In the above-mentioned embodiments: the converter tailings are the remaining wastes after the converter steel slag is hot and stuffy, and passed through the steel slag magnetic separation processing line after crushing, screening and magnetic separation. The particle size is 0-10mm, and the distribution ratio of each component contained is The proportion by weight is: SiO 2 13-17 parts, Al 2 o 3 4-8 parts, Fe 2 o 3 7-21 parts, CaO38-43 parts, MgO9-13 part...

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Abstract

The invention relates to a method for producing baking-free slag bricks by using steel slag sludge of a rotating furnace. The bricks are produced by taking tailings and tailing sludge of the rotating furnace as raw materials, taking slag silicate cement as an auxiliary material, adding a small amount of water into the raw materials and the auxiliary material, stirring the raw materials and the auxiliary material to uniformly mix the raw materials and the auxiliary material, pressing the mixture on a brick press, and naturally curing the pressed mixture. The bricks comprise the following compoennts in part by weight: 20 to 50 parts of tailings of the rotating furnace, 50 to 80 parts of tailing sludge of the rotating furnace and 0 to 5 parts of slag silicate cement. The adding amount of theadded water is 0 to 5 percent of the total weight of the raw materials. The baking-free bricks are produced by taking the tailings and the tailing sludge of the rotating furnace as main raw materials, adding a small amount of slag silicate cement and water into the main raw materials, and pressing the mixture. The raw materials do not need to be treated and can be directly used and the mouled product is naturally cured, so that the energy is saved; and no any equipment is added, so that the problem that the tailings of the rotating furnace and the tailing sludge of the rotating furnace occupyspace and pollute environment is solved by producing the baking-free slag bricks.

Description

technical field [0001] The invention relates to a production method of building materials, in particular to a method for producing non-burning slag bricks with converter steel slag mud. Background technique [0002] The by-product converter tailings sludge produced after the deep processing of converter steel slag magnetic separation products and the waste converter tailings after magnetic separation of converter steel slag, both occupy a large area and pollute the environment because they cannot be used. [0003] The Chinese invention patent "Method for Producing Unburned Bricks from Converter Steelmaking Waste Slag" with the notification number CN200610047188.0 discloses a method for producing unburned bricks with converter steel slag. The method uses converter steel slag, but crushing and screening are required Converter waste steel slag and increase binder water glass increase the production cost; the Chinese invention patent "a steel slag-free brick" with the announceme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B3/00B28C7/04B28B11/24C04B28/04C04B18/14
CPCY02W30/91
Inventor 苏兴文孙生宇石兴民张志彪崔九霄
Owner 鞍钢绿色资源科技有限公司
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