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Cement clinker and preparation method thereof

A technology for cement clinker and cement raw meal, applied in cement production and other directions, can solve problems such as increasing the production cost of enterprises and hidden dangers of environmental protection, and achieve the effects of considerable economic benefits, improved utilization, and reduced resource consumption.

Inactive Publication Date: 2019-11-12
刘全富
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the comprehensive utilization of high-carbon ferrochromium waste residue is only about 30%, and most of the areas are still mainly buried, which not only increases the production cost of enterprises but also leaves environmental protection risks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 3 parts by weight of industrial waste slag produced in high-carbon ferrochrome are broken into 10mm blocks, and then the blocks are ground to a particle size of 100 μm and then mixed with 97 parts by weight of cement raw meal powder to obtain mixed cement raw meal; Cement raw meal was calcined at 1250°C for 30 minutes, and cement clinker was obtained after cooling. Among them, the SiO in the industrial waste slag from the production of high carbon ferrochrome 2 The weight percentage is 35%, Al 2 o 3 The weight percentage is 32%, the weight percentage of MgO is 30%, Fe 2 o 3 8% by weight of GaO, 1% by weight of GaO, Gr 2 o 3 The weight percentage is 5%. According to the following cost and consumption calculation, coal consumption is 140kg / T, coal price is 500 yuan / T, slag crushing, transportation, tax and other expenses are 150 yuan / T (loss on ignition is 0), cement clinker is 280 yuan / T, conventional cement The profit of 1 ton of cement clinker produced by the fa...

Embodiment 2

[0030] 4 parts by weight of industrial waste slag produced in high-carbon ferrochrome are crushed into 15mm blocks, and then the blocks are ground to a particle size of 80 μm and then mixed with 96 parts by weight of cement raw meal powder to obtain mixed cement raw meal; Cement raw meal was calcined at 1180°C for 40 minutes, and cement clinker was obtained after cooling. Among them, the SiO in the industrial waste slag from the production of high carbon ferrochrome 2 The weight percentage is 33%, Al 2 o 3 The weight percentage of MgO is 30%, the weight percentage of MgO is 28%, Fe 2 o 3 9% by weight of GaO, 1.5% by weight of GaO, Gr 2 o 3 The weight percentage is 7%. According to the following cost and consumption calculation, coal consumption is 140kg / T, coal price is 500 yuan / T, slag crushing, transportation, tax and other expenses are 150 yuan / T (loss on ignition is 0), cement clinker is 280 yuan / T, conventional cement The profit of 1 ton of cement clinker produced ...

Embodiment 3

[0032] 5 parts by weight of industrial waste slag produced in high-carbon ferrochrome are crushed into 20mm blocks, and then the blocks are ground to a particle size of 80 μm and then mixed with 95 parts by weight of cement raw meal powder to obtain mixed cement raw meal; Cement raw meal was calcined at 1050°C for 50 minutes, and cement clinker was obtained after cooling. Among them, the SiO in the industrial waste slag from the production of high carbon ferrochrome 2 The weight percentage is 33%, Al 2 o 3 The weight percentage of MgO is 30%, the weight percentage of MgO is 28%, Fe 2 o 3 9% by weight of GaO, 1.5% by weight of GaO, Gr 2 o 3The weight percentage is 7%. According to the following cost and consumption calculation, coal consumption is 140kg / T, coal price is 500 yuan / T, slag crushing, transportation, tax and other expenses are 150 yuan / T (loss on ignition is 0), cement clinker is 280 yuan / T, conventional cement The profit of 1 ton of cement clinker produced b...

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Abstract

The invention relates to the field of building materials, particularly to a cement clinker and a preparation method thereof. The preparation method comprises: mixing industrial waste residue for producing high carbon ferrochrome and cement raw material powder to obtain a mixed cement raw material; and calcining the mixed cement raw material to obtain the cement clinker, wherein a weight part ratioof the industrial waste residue to the cement raw material powder is (3-5):(95-97). According to the present invention, the cement clinker is produced by effectively utilizing the high-carbon ferrochrome waste residue, such that the consumption of resources by cement enterprises can be reduced, the production cost can be reduced, the environmental pollution can be reduced, the utilization rate ofhigh-carbon ferrochrome waste residue can be increased, the environmental protection hidden danger caused by the burying of high-carbon ferrochrome waste residue can be reduced, the development of building material industry can be greatly promoted, and the considerable economic and social benefits can be brought to enterprises and society.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a cement clinker and a preparation method thereof. Background technique [0002] Cement is the most widely used inorganic cementitious material in civil engineering. In the past 100 years since its invention, cement technology has been comprehensively improved. Cement is mixed with sand and gravel materials to form concrete. It can show different properties and characteristics, adapt to and meet the actual needs of various projects, and become the most important engineering material in the field of civil engineering. [0003] In the process of cement preparation, a large amount of energy is required in the production of cement clinker, which is mainly provided by coal. After the coal is burned, a large amount of coal-fired slag is produced. The crushing, transportation, and taxation of the slag will generate high costs. The transportation fee increases the production cost to a ...

Claims

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Application Information

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IPC IPC(8): C04B7/147C04B7/36
CPCC04B7/147C04B7/36Y02P40/10
Inventor 刘全富
Owner 刘全富
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