Steel slag cement clinker

A technology for cement clinker and steel slag, applied in the field of cement clinker, can solve problems such as large occupation and environmental pollution, and achieve the effects of reducing CO2 emissions, reducing energy consumption, high social and economic benefits

Inactive Publication Date: 2004-04-07
TAIYUAN IRON & STEEL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, steel slag from iron and steel enterprises and fly ash from power generation enterprises are disposed of by landfill, which not only easily pollutes the environment, but also takes up a lot of space.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: the weight proportion of each raw material of the present embodiment is:

[0014] Limestone 510kg Fly ash 170kg Reduced slag 220kg

[0015] Steel slag 80kg Sandstone 20kg

[0016] The above raw materials are mixed in proportion, ground together and fired in a rotary kiln to form cement clinker.

Embodiment 2

[0017] Embodiment 2: the weight proportion of each raw material of the present embodiment is:

[0018] Limestone 490kg Fly ash 170kg Reduced slag 240kg

[0019] Steel slag 80kg Sandstone 20kg

[0020] The above raw materials are mixed in proportion, ground together and fired in a rotary kiln to form cement clinker.

Embodiment 3

[0021] Embodiment 3: the weight proportion of each raw material of the present embodiment is:

[0022] Limestone 500kg Fly ash 165kg Reduced slag 230kg

[0023] Steel slag 85kg Sandstone 20kg

[0024] The above raw materials are mixed in proportion, ground together and fired in a rotary kiln to form cement clinker.

[0025] Preface

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PUM

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Abstract

The steel slag cement clinker is produce with limestone 475-525 (in weight portions, the same below), flyash 160-180, reducing slag 200-240, steel slag 60-100 and sandstone 20-40 and through mixing, milling and baking in rotary kiln. The present invention used flyash to replace clay, reducing slag replacing partial limestone and steel slag replacing iron ore, and this can save resource, protect ecological environment and reduce CO2 exhaust while raising yield, lowering power consumption and saving fuel.

Description

technical field [0001] The invention relates to a cement clinker, in particular to a cement clinker containing steel slag in the raw material. Background technique [0002] At present, limestone, clay, iron ore (or iron powder) are the main raw materials for producing cement clinker. With the development of society, the demand for cement is increasing, and the raw material resources for producing cement clinker are continuously decreasing, especially the clay, which accounts for 17% to 20%, has been restricted. However, steel slag from iron and steel enterprises and fly ash from power generation enterprises are disposed of by burial, which not only easily pollutes the environment, but also takes up a lot of space. Contents of the invention [0003] The object of the present invention aims at overcoming above-mentioned shortcoming, a kind of steel slag cement clinker is provided. It can not only protect the environment and save resources, but also make the cement industry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/147C04B7/153
CPCY02P40/10
Inventor 李文卿李虎森范莲花
Owner TAIYUAN IRON & STEEL GROUP
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