Road silicate cement clinker on basis of industrial waste residues and method for preparing road silicate cement clinker

A technology of road silicate and cement clinker, applied in the direction of cement production, etc., can solve the problems that do not meet the development requirements of low-carbon green, high energy, resource consumption, low nickel slag content, etc., to solve the occupation problem, Improve the mechanical properties, the effect of strong mechanical properties

Active Publication Date: 2018-12-25
哈尔滨太行兴隆水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extensive use of limestone in this technology results in high energy, resource consumption and CO 2 The emission does not meet the requirements of low-carbon green development; the content of nickel slag is low, and the strength level is low

Method used

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  • Road silicate cement clinker on basis of industrial waste residues and method for preparing road silicate cement clinker
  • Road silicate cement clinker on basis of industrial waste residues and method for preparing road silicate cement clinker
  • Road silicate cement clinker on basis of industrial waste residues and method for preparing road silicate cement clinker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Components: 20 parts of nickel slag, 65 parts of calcium carbide slag, 4 parts of zirconium silicon slag, 2 parts of bauxite tailings, 7 parts of desulfurized gypsum, 2 parts of mineralizer (1.3 parts of lead-zinc tailings, 0.7 parts of phosphorus slag) .

[0036] The preparation method of road portland cement clinker based on industrial waste residue comprises the following steps, as figure 1 Shown:

[0037] (1) Carbide slag is dried, and nickel slag is crushed and ground;

[0038] (2) Mix, grind, and homogenize nickel slag, calcium carbide slag, zirconium silicon slag, bauxite tailings, desulfurized gypsum, and mineralizer to obtain cement raw meal; wherein, the raw meal rate in the cement raw meal is The values ​​are: lime saturation coefficient (KH) is 0.87, silicon ratio (SM) is 1.87, aluminum ratio (IM) is 0.77.

[0039] (3) The prepared raw meal is preheated at 780°C for 4 minutes and then calcined in a rotary kiln. The calcining temperature is 1280-1350°C, ca...

Embodiment 2

[0045] Components: 25 parts of nickel slag, 60 parts of calcium carbide slag, 3 parts of zirconium silicon slag, 3 parts of bauxite tailings, 7.5 parts of desulfurized gypsum, 1.5 parts of mineralizer (1.05 parts of lead-zinc tailings, 0.45 parts of phosphorus slag) .

[0046] The preparation method of the road portland cement clinker based on industrial waste residue comprises the following steps:

[0047] (1) Carbide slag is dried, and nickel slag is crushed and ground;

[0048] (2) Mix, grind, and homogenize nickel slag, calcium carbide slag, zirconium silicon slag, bauxite tailings, desulfurized gypsum, and mineralizer to obtain cement raw meal; wherein, the raw meal rate in the cement raw meal is The values ​​are: lime saturation coefficient (KH) is 0.88, silicon rate (SM) is 1.89, aluminum rate (IM) is 0.66.

[0049] (3) The prepared raw meal is preheated at 780°C for 4 minutes and then calcined in a rotary kiln. The calcining temperature is 1280-1350°C, calcined for 3...

Embodiment 3

[0055] Components: 30 parts of nickel slag, 60 parts of calcium carbide slag, 2 parts of zirconium silicon slag, 2 parts of bauxite tailings, 5 parts of desulfurized gypsum, 1 part of mineralizer (0.75 parts of lead-zinc tailings, 0.25 parts of phosphorus slag) .

[0056] The preparation method of the road portland cement clinker based on industrial waste residue comprises the following steps:

[0057] (1) Carbide slag is dried, and nickel slag is crushed and ground;

[0058] (2) Mix, grind, and homogenize nickel slag, calcium carbide slag, zirconium silicon slag, bauxite tailings, desulfurized gypsum, and mineralizer to obtain cement raw meal; wherein, the raw meal rate in the cement raw meal is The values ​​are: lime saturation coefficient (KH) is 0.90, silicon ratio (SM) is 1.79, aluminum ratio (IM) is 0.74.

[0059] (3) The prepared raw meal is preheated at 780°C for 4 minutes and then calcined in a rotary kiln. The calcining temperature is 1280-1350°C, calcined for 35 m...

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Abstract

The invention discloses road silicate cement clinker on the basis of industrial waste residues and a method for preparing the road silicate cement clinker. The road silicate cement clinker comprises nickel slag, calcium carbide residues, zirconium-containing silica residues, bauxite tailing, desulfurization gypsum and mineralizers. The method includes mixing, grinding and homogenizing the nickel slag, the calcium carbide residues, the zirconium-containing silica residues, the bauxite tailing, the desulfurization gypsum and the mineralizers to obtain cement raw materials; preheating the cementraw materials, then calcining the cement raw materials under the condition of the temperature of 1280-1350 DEG C for 30-35 min and then carrying out cooling to obtain the road silicate cement clinker.The road silicate cement clinker and the method have the advantages that the 28 d compressive strength of the road silicate cement clinker can reach 63.9-75.2 MPa, the strength grade of the road silicate cement clinker can reach 62.5 grade, the 28 d breaking strength of the road silicate cement clinker can reach 9.8-18.2 MPa, the 28 d mortar abrasion loss of the road silicate cement clinker is lower than 2.5 kg/m<2>, cement is high in stability, and the road silicate cement clinker is high in abrasion resistance and excellent in work performance; the method is simple, complicated working procedures can be omitted, and the road silicate cement clinker and the method are low in cost.

Description

technical field [0001] The invention belongs to the field of cement clinker preparation, in particular to a road portland cement clinker based on industrial waste residue. Background technique [0002] With the development of the economy, the road construction is also developing. The traffic volume and load of the road are also increasing with the increase of the road mileage. The requirements for road construction materials are also increased accordingly. At present, the most used road construction material is cement concrete. Because the cement concrete pavement has to withstand the repeated impact, vibration and friction of high-speed and high-load vehicles, it will cause damage to the pavement in the long run and reduce its durability. Therefore, cement concrete pavement is required to have good mechanical properties, especially high flexural strength, and sufficient wear resistance. Road cement can meet these characteristic requirements that are difficult for general-pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/19C04B7/44C04B7/38
CPCC04B7/19C04B7/38C04B7/44Y02P40/10
Inventor 吴其胜吴阳钱旭阳顾红霞黎水平杨涛
Owner 哈尔滨太行兴隆水泥有限公司
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