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A kind of less clinker cement and preparation method thereof

A technology for clinker cement and cement clinker, applied in the field of building cement materials, can solve problems such as energy shortage and environmental damage, and achieve the effects of reducing the amount of non-renewable resources, saving resources and reducing production costs

Active Publication Date: 2018-11-13
YOUNGWOO CHEMTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve technical problems such as shortage of resources and energy and environmental damage faced by the cement industry in the prior art, the present invention provides a kind of clinker-less cement with ferronickel slag powder and its preparation method. It can not only achieve energy saving and emission reduction, but also reduce the cost of cement, and can consume a large amount of industrial waste such as ferronickel slag powder and desulfurized gypsum, which has significant environmental protection significance and economic value.

Method used

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  • A kind of less clinker cement and preparation method thereof

Examples

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Effect test

Embodiment 1

[0023] The invention provides a kind of less clinker cement, each component of this cement is: specific surface area is 400m 2 / kg of ferronickel slag powder 6.0kg, fly ash 0.5kg, slag 0.3kg, desulfurization gypsum 0.3kg, cement clinker 0.5kg, sodium tripolyphosphate 0.1kg, sodium coco alcohol sulfate 0.1kg, slaked lime 0.1kg.

[0024] The present invention also provides the preparation method of this little clinker cement, and this method comprises the following steps:

[0025] (1) Weigh the fly ash, slag, cement clinker, desulfurized gypsum, sodium tripolyphosphate, sodium cocoyl sulfate and hydrated lime of the above-mentioned quality, then pour them into the mill, and grind until the specific surface area is 350m 2 / kg of fine powder;

[0026] (2) Pour the above-mentioned fine powder and the nickel-iron slag micro-powder of the above-mentioned quality into a sample mixer, and mix evenly to obtain the clinker-less cement.

Embodiment 2

[0028] The invention provides a kind of less clinker cement, each component of this cement is: specific surface area is 450m 2 / kg of ferronickel slag powder 7.0kg, fly ash 0.4kg, slag 0.9kg, desulfurization gypsum 0.3kg, cement clinker 1.5kg, sodium tripolyphosphate 0.4kg, sodium coco alcohol sulfate 0.1kg, slaked lime 0.3kg.

[0029] The present invention also provides the preparation method of this little clinker cement, and this method comprises the following steps:

[0030] (1) Weigh the fly ash, slag, cement clinker, desulfurized gypsum, sodium tripolyphosphate, sodium cocoyl sulfate and slaked lime of the above quality, then pour them into the mill, and grind until the specific surface area is 400m 2 / kg of fine powder;

[0031] (2) Pour the above-mentioned fine powder and the nickel-iron slag micro-powder of the above-mentioned quality into a sample mixer, and mix evenly to obtain the clinker-less cement.

Embodiment 3

[0033] The invention provides a kind of less clinker cement, each component of this cement is: specific surface area is 500m 2 / kg of ferronickel slag fine powder 6.0kg, fly ash 1.2kg, slag 0.6kg, desulfurization gypsum 0.3kg, cement clinker 1.2kg, sodium tripolyphosphate 0.3kg, sodium coco alcohol sulfate 0.2kg, slaked lime 0.8kg.

[0034] The present invention also provides the preparation method of this little clinker cement, and this method comprises the following steps:

[0035] (1) Weigh the fly ash, slag, cement clinker, desulfurized gypsum, sodium tripolyphosphate, sodium cocoyl sulfate and slaked lime of the above quality, then pour them into the mill, and grind until the specific surface area is 400m 2 / kg of fine powder;

[0036] (2) Pour the above-mentioned fine powder and the nickel-iron slag micro-powder of the above-mentioned quality into a sample mixer, and mix evenly to obtain the clinker-less cement.

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Abstract

The invention discloses a clinker-less cement, which comprises the following components in parts by mass: 60-80 parts of ferronickel slag fine powder, 5-15 parts of fly ash, 3-12 parts of slag, and 3-8 parts of desulfurized gypsum , 5-25 parts of cement clinker, 2-11 parts of activator, and 1-8 parts of slaked lime. The clinker-less cement is prepared through the steps of grinding and mixing, the preparation method is simple, and the technical requirements are not high. The less-clinker cement of the present invention contains a large amount of ferronickel slag micropowder, fly ash, slag, and desulfurized gypsum industrial waste, and the amount of cement clinker contained is small, and a large amount of industrial waste such as ferronickel slag micropowder and fly ash is consumed It solves the problem of solid waste discharge and environmental pollution in the metallurgical industry, and also finds a source of raw materials for the preparation of cement materials, reducing production costs.

Description

technical field [0001] The invention relates to a building cement material, in particular to a less-clinker cement and a preparation method thereof. Background technique [0002] With the gradual expansion of the scale of nickel-iron alloy smelting by pyrometallurgy of laterite nickel ore, the discharge of nickel-iron slag is gradually increasing. According to statistics, in 2011, my country's annual output of ferronickel reached 250,000 tons (nickel content), accompanied by more than 15 million tons of ferronickel slag. By 2015, the total discharge of ferronickel slag is expected to be close to 100 million tons, exceeding The total discharge of metallurgical slag such as copper slag and manganese slag accounts for about one-fifth of the total discharge of metallurgical slag. The national "Tenth Five-Year Plan" outline pointed out that "adhere to resource development and conservation simultaneously, improve resource utilization rate, and realize sustainable utilization. Prom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/26C04B7/153C04B7/36
CPCC04B7/153C04B7/243C04B7/36Y02P40/10Y02P40/121
Inventor 王义高闯
Owner YOUNGWOO CHEMTECH
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