阅读说明：本技术 一种硅酸盐水泥 (Portland cement ) 是由 蒋敏 李选成 蒋小勇 鞠建涛 于 2019-09-24 设计创作，主要内容包括：本发明涉及一种硅酸盐水泥,属于建材技术领域。其由下列重量份的原料构成：熟料76～80份、改性磷石膏2～5份、燃煤炉渣3～6份、石灰石5～7份、玄武岩4～7份、废渣煅烧料3～7份。本发明采用废渣煅烧料代替部分玄武岩使用,解决了生活和工业废渣无地方堆埋、处理成本高、对环境污染大的问题；而且将废渣煅烧料代替部分玄武岩生产水泥,在水泥安定性合格的情况下,使水泥配料成本至少下降1.02元/吨,年生产110万吨水泥可至少可节约资金112.2万元。此外,废渣煅烧料易磨性比玄武岩好,使产量提高3吨/h,提高了水泥的生产效率,同时也降低了能耗,有效的提升了企业的经济效益。(The invention relates to portland cement, and belongs to the technical field of building materials. The paint comprises the following raw materials in parts by weight: 76-80 parts of clinker, 2-5 parts of modified phosphogypsum, 3-6 parts of coal-fired furnace slag, 5-7 parts of limestone, 4-7 parts of basalt and 3-7 parts of waste residue calcined material. The invention adopts the waste residue calcined material to replace part of basalt, and solves the problems of no local landfill of domestic and industrial waste residues, high treatment cost and great environmental pollution; and the waste residue calcined material replaces part of basalt to produce cement, so that the cement batching cost is reduced by at least 1.02 yuan/ton under the condition that the cement stability is qualified, and the capital can be saved by at least 112.2 yuan per 110 million tons of cement produced every year. In addition, the waste residue calcined material is more easily ground than basalt, so that the yield is improved by 3 tons/h, the production efficiency of cement is improved, the energy consumption is reduced, and the economic benefit of an enterprise is effectively improved.)

1. The portland cement is characterized by comprising the following raw materials in parts by weight: 76-80 parts of clinker, 2-5 parts of modified phosphogypsum, 3-6 parts of coal-fired furnace slag, 5-7 parts of limestone, 4-7 parts of basalt and 3-7 parts of waste residue calcined material.

2. The portland cement of claim 1, comprising the following raw materials in parts by weight: 77 parts of clinker, 4 parts of modified phosphogypsum, 3 parts of coal-fired furnace slag, 6 parts of limestone, 5 parts of basalt and 5 parts of waste residue calcined material.

3. The portland cement according to claim 1 or 2, wherein the waste residue calcined material is obtained by calcining domestic and/or industrial waste residue in a kiln at 1000-1200 ℃, and then performing iron removal, impurity removal, water washing and particle size treatment, wherein the Loss content in the waste residue calcined material is less than 10%.

4. The portland cement of claim 3, wherein the waste residue calcined material is obtained by calcining domestic and/or industrial waste residue in a kiln at 1100 ℃, removing iron, impurities, washing with water, and performing particle size treatment, wherein SiO in the waste residue calcined material₂In an amount of25％～40％、AL₂O₃5 to 12 percent of Fe₂O₃1-7 percent of CaO, 15-30 percent of CaO, 2-6 percent of MgO and SO₃The content is 0.5-1.5%.

Technical Field

The invention relates to portland cement, and belongs to the technical field of building materials.

Background

Portland cement is an important raw material for industrial and civil construction, basalt serving as one of cement raw materials is in shortage more and more along with the lapse of time, the price is higher and higher, the price is increased from 40 yuan/ton to 60 yuan/ton or even higher, the production cost of the cement is higher and higher, and the active search for a basalt substitute or a partial substitute becomes a problem to be solved urgently.

As is well known, domestic and industrial waste residues are some wastes generated in life and production of people, and at present, the domestic waste residues are treated in a landfill mode or a field combustion mode, so that the treatment cost is high, and the environmental pollution is also high. Therefore, how to effectively and reasonably treat and utilize the domestic waste residue, change waste into valuables, turn harm into benefit, save energy and resources is a problem which needs to be solved urgently at present.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide Portland cement which adopts a product (waste residue calcined material) obtained after combustion of domestic and industrial waste residues as a filler. The cement has the advantages of low cost, no toxicity, no harm, good stability and the like.

In order to achieve the purpose, the invention adopts the following technical scheme: the portland cement is composed of the following raw materials in parts by weight: 76-80 parts of clinker, 2-5 parts of modified phosphogypsum, 3-6 parts of coal-fired furnace slag, 5-7 parts of limestone, 4-7 parts of basalt and 3-7 parts of waste residue calcined material.

In the technical scheme, 77 parts of clinker, 4 parts of modified phosphogypsum, 3 parts of coal-fired furnace slag, 6 parts of limestone, 5 parts of basalt and 5 parts of waste residue calcined material are preferably selected.

In the technical scheme, the waste residue calcined material is obtained by calcining domestic and/or industrial waste residue in a kiln at the temperature of 1000-1200 ℃, and then carrying out iron removal, impurity removal, water washing and particle size treatment, wherein the Loss content in the waste residue calcined material is less than 10%.

In the above technical scheme, preferably, the waste residue calcined material is obtained by calcining domestic and/or industrial waste residue in a kiln at 1100 ℃, and then removing iron, impurities, washing with water and performing particle size treatment, wherein SiO in the waste residue calcined material₂25-40% of Al₂O₃5 to 12 percent of Fe₂O₃1-7 percent of CaO, 15-30 percent of CaO, 2-6 percent of MgO and SO₃The content is 0.5-1.5%.

Compared with the prior art, the invention has the following beneficial effects due to the adoption of the technical scheme:

the invention adopts the waste residue calcined material to replace part of basalt, and solves the problems of no local landfill of domestic and industrial waste residues, high treatment cost and great environmental pollution; and the waste residue calcined material replaces partial basalt to produce cement, so that the cement batching cost is reduced by at least 1.02 yuan/ton under the condition that all indexes of the cement are qualified, and the capital can be saved by at least 112.2 yuan for producing 110 million tons of cement per year. In addition, the waste residue calcined material is more easily ground than basalt, so that the yield is improved by 3 tons/h, the production efficiency of cement is improved, the energy consumption is reduced, and the economic benefit of an enterprise is effectively improved.

Detailed Description

The invention will be further illustrated with reference to the following specific examples: