Method for producing slag portland cement by basalt in ingredients of cement

A Portland cement and basalt technology, applied in cement production and other directions, can solve the problems of low admixture content, low early strength, and high clinker consumption, and achieve increased economic benefits, increased output, and improved cement quality assurance coefficient. Effect

Inactive Publication Date: 2012-10-03
嘉峪关祁连山水泥有限公司
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method of producing slag portland cement by using basalt in cement, so as to solve the problems of low early strength, low admixture in cement and high clinker consumption in existing portland cement. question

Method used

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  • Method for producing slag portland cement by basalt in ingredients of cement
  • Method for producing slag portland cement by basalt in ingredients of cement

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Example 1: The weight percentage of each raw material in slag Portland cement is 5-7% of basalt, 26-28% of Portland cement clinker powder, 6% of dihydrate gypsum, and 61% of granulated blast furnace slag powder.

[0029] Proceed as follows:

[0030] A. Grinding portland cement clinker, dihydrate gypsum and basalt with large roller press and ball mill to produce clinker powder,

[0031] The weight percentage of raw materials is basalt 14.3%, clinker 80%, dihydrate gypsum 2.1%;

[0032] B. Grinding granulated blast furnace slag and dihydrate gypsum with a slag vertical mill to produce fine slag powder. The weight percentage of raw materials is 93.8% of granulated blast furnace slag and 3.9% dihydrate gypsum.

[0033] C. Mix and stir clinker powder with a weight percentage of 35% and fine slag powder with a weight percentage of 65% by a mixing homogenizer to obtain slag portland cement.

Embodiment 2

[0034] Example 2: The weight percentage of each raw material in slag portland cement is : Basalt 6.0% , clinker 27.0%, dihydrate gypsum 6.0%, granulated blast furnace slag powder 61.0%.

[0035] Proceed as follows:

[0036] A. Grinding portland cement clinker, dihydrate gypsum and basalt with large roller press and ball mill to produce clinker powder,

[0037] The weight percentage of raw materials is basalt 17.1%, clinker 77.1%, dihydrate gypsum 2.1%;

[0038] B. Grinding granulated blast furnace slag and dihydrate gypsum with a slag vertical mill to produce fine slag powder. The weight percentage of raw materials is 93.8% of granulated blast furnace slag and 3.9% dihydrate gypsum.

[0039] C. Mix and stir clinker powder with a weight percentage of 35% and fine slag powder with a weight percentage of 65% by a mixing homogenizer to obtain slag portland cement.

Embodiment 3

[0040] Example 3: The percentage by weight of each raw material in the slag Portland cement is: basalt 7.0%, clinker 26.0%, dihydrate gypsum 6.0%, granulated blast furnace slag powder 61.0%.

[0041] Proceed as follows:

[0042] A. Grinding portland cement clinker, dihydrate gypsum and basalt with large roller press and ball mill to produce clinker powder,

[0043] The weight percentage of raw materials is basalt 20.0%, clinker 74.3%, dihydrate gypsum 2.1%;

[0044] B. Grinding granulated blast furnace slag and dihydrate gypsum with a slag vertical mill to produce fine slag powder. The weight percentage of raw materials is 93.8% of granulated blast furnace slag and 3.9% dihydrate gypsum.

[0045] C. Mix and stir clinker powder with a weight percentage of 35% and fine slag powder with a weight percentage of 65% by a mixing homogenizer to obtain slag portland cement.

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Abstract

The invention discloses a method for producing slag portland cement by basalt in ingredients of cement, and aims to solve the problems of low early strength, low admixing amount of mixed material in cement and high dosage of clinker in the conventional portland cement. The method comprises the following steps: A, grinding portland cement clinker, gypsum and basalt to produce clinker powder by a large roll squeezer and a ball grinder; B, grinding and pelletizing blast furnace slag and gypsum to produce fine slag powder by a slag vertical grinding machine; C, mixing and agitating the clinker powder of which the weight percentage is 35% and the fine slag powder of which the weight percentage is 65% to obtain the slag portland cement through a mixing homogenizer, wherein the weight percentage of each material in the slag portland cement is 5-7% of basalt, 26-28% of portland cement clinker powder, 6% of gypsum and 61% of pelletized blast furnace slag. According to the method disclosed by the invention, the early strength of the slag portland cement is improved; the admixing amount of mixed material in the cement is increased and the dosage of the clinker is reduced.

Description

technical field [0001] The invention relates to a method for producing slag portland cement by using basalt as ingredients in cement. Background technique [0002] In "General Portland Cement" GB175-2007, 5.1 Components and 5.2 Materials stipulate that Portland cement clinker refers to the clinker mainly composed of CaO, SIO 2 、AL 2 o 3 , Fe 2 o 3 The raw materials are ground into fine powder in an appropriate proportion and burned to partially melt to obtain a hydraulic gelling substance with calcium silicate as the main mineral. [0003] According to the mass fraction of cement components, slag portland cement (P·S) is divided into two types: type A and type B. In P·S·A type cement, clinker + gypsum component ≥ 50 and < 80, granulated blast furnace slag > 20 and ≤ 50 b ; [0004] In P·S·B type cement, clinker + gypsum component ≥ 30 and < 50, granulated blast furnace slag > 50 and ≤ 70 b ; [0005] Among them, b—the material of this component is an act...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/36C04B7/21
CPCY02P40/10
Inventor 武学龙赵建清王君张宇平
Owner 嘉峪关祁连山水泥有限公司
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