Portland cement clinker

A Portland cement and clinker technology, applied in cement production and other directions, can solve problems such as not conducive to reducing production costs, not conducive to the protection of land resources, agricultural ecological environment and human living environment, etc. Natural environment, the effect of saving raw materials
CN1161300CInactive Publication Date: 2004-08-11唐山协兴水泥有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
唐山协兴水泥有限公司
Publication Date
2004-08-11
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

A portland cement clinker is prepared from lime stone (73-86 wt.%), iron ore tailings (5-18), flyash (2-12), and cinder (1-8) through compounding. Its advantages are low energy consumption and low pollution.
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Description

technical field

[0001] The invention relates to a hydraulic Portland cement clinker. Background technique

[0002] Raw meal preparation for the production of traditional Portland cement clinker clinker, the formula generally uses the following raw materials:

[0003] 1. Limestone 77-82% 2. Clay 14-18% 3. Iron ore (or corrected raw material) 4-6%

[0004] Judging from the formula of traditional raw materials, in addition to limestone, 18-24% of clay and iron ore are needed, and clay and iron ore mainly come from cultivated land and iron ore resources. Especially for clay, it takes 230-300 kg of clay to produce 1 ton of clinker. The annual production of cement clinker in my country is about 400-450 million tons. Assuming that 50% of the siliceous corrected raw materials come from clay, then the annual use of cultivated land The volume is 50 to 70 million cubic meters, and the depth of excavation is calculated as 2 meters, destroying 37,500 to 52,500 mu of cultivated land ever...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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