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Energy-saving and environment-friendly building cement and production process thereof

An energy-saving, environment-friendly and construction technology, applied in the field of construction cement, can solve the problems of pollution, inability to recycle, waste of resources, etc., and achieve the effects of high strength, small pores and large specific surface area.

Inactive Publication Date: 2020-11-20
北京鸿成科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Restricted by the national standard "Technical Conditions for Motor Vehicle Operation Safety" (GB7258) and the "Three No Guarantees" tires, 70% of my country's waste tire retreading manufacturing enterprises are in a state of shutdown or semi-stop production. At present, a large number of waste tires cannot be recycled, resulting in Great waste of resources and environmental pollution

Method used

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  • Energy-saving and environment-friendly building cement and production process thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0038] An energy-saving and environment-friendly building cement. The cement comprises the following raw materials in parts by weight: 70 parts of limestone, 10 parts of lead-zinc tailings, 2 parts of dihydrate gypsum, 1 part of modified triethanolamine, 5 parts of steel slag, and 10 parts of fly ash , 5 parts of waste tire powder, 10 parts of rice husk.

[0039] The preparation method of modified triethanolamine is:

[0040] (1) earlier triethanolamine is dropped in the four-necked flask A that has stirring paddle, then in the four-necked flask A, add the p-toluenesulfonic acid of reactant total amount 3% as catalyst;

[0041] (2) At 110°C and a stirring speed of 40r / min, add maleic anhydride to the four-necked flask A in batches, the molar ratio of maleic anhydride and triethanolamine is 1.2:1, and react until the acid value in the system is Until it is no longer reduced, triethanolamine maleate is obtained, and triethanolamine maleate is mixed with 50% triethanolamine male...

Embodiment 2

[0051] An energy-saving and environment-friendly building cement. The cement includes the following raw materials in parts by weight: 80 parts of limestone, 14 parts of lead-zinc tailings, 3 parts of dihydrate gypsum, 3 parts of modified triethanolamine, 10 parts of steel slag, and 20 parts of fly ash , 10 parts of waste tire powder, 15 parts of rice husk.

[0052] The preparation method of modified triethanolamine is consistent with the preparation method of modified triethanolamine in Example 1.

[0053] The cement production process is:

[0054] (1) Weigh the raw materials according to the proportion, mix and pulverize limestone, lead-zinc tailings, steel slag and rice husk, and grind them finely by a ball mill to prepare raw meal;

[0055] (2) After heating the cement pit to 300°C, put the raw material prepared in step (1) into the cement pit, heat the cement pit to 1350°C for calcination, take it out after high-temperature calcination, and naturally cool to room temperat...

Embodiment 3

[0059] An energy-saving and environment-friendly building cement, comprising the following raw materials in parts by weight: 70 parts of limestone, 14 parts of lead-zinc tailings, 2 parts of dihydrate gypsum, 3 parts of modified triethanolamine, 5 parts of steel slag, and 20 parts of fly ash , 5 parts of waste tire powder, 15 parts of rice husk.

[0060] The preparation method of modified triethanolamine is consistent with the preparation method of modified triethanolamine in Example 1.

[0061] The cement production process is:

[0062] (1) Weigh the raw materials according to the proportion, mix and pulverize limestone, lead-zinc tailings, steel slag and rice husk, and grind them finely by a ball mill to prepare raw meal;

[0063] (2) After heating the cement pit to 200°C, put the raw material prepared in step (1) into the cement pit, heat the cement pit to 1350°C for calcination, take it out after high-temperature calcination, and naturally cool to room temperature to obta...

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Abstract

The invention provides energy-saving and environment-friendly building cement and a production process thereof, and relates to the technical field of building cement, and the cement comprises the following raw materials in parts by weight: limestone, lead-zinc tailings, gypsum, modified triethanolamine, steel slag, fly ash, waste tire powder and rice hull. The cement prepared by the method has theadvantages of high strength, small pores, large specific surface area, high fineness and the like, and waste rice husks and waste tires can be treated and then added into the raw materials, so that the breaking strength and the compactness of the cement are improved, and the recycling of waste resources is realized.

Description

technical field [0001] The invention relates to the technical field of building cement, in particular to an energy-saving and environment-friendly building cement and a production process thereof. Background technique [0002] Cement is a powdery hydraulic inorganic gelling material. After adding water and stirring, it becomes a slurry, which can be hardened in air or in water, and can firmly bind sand, stone and other materials together. In the early years the mixture of lime and volcanic ash is very similar to lime pozzolanic cement, use it to glue concrete which made of crushed stone. After hardening, the cement not only has high strength, but also can resist the erosion of fresh water or salt water. Cement includes Portland cement, aluminate cement, sulphoaluminate cement, iron-aluminate cement, fluoroaluminate cement, phosphate cement, and cement with pozzolan or latent hydraulic materials and other active materials as main components. cement. Among them, Portland ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24C04B7/153C04B7/26C04B28/04C04B24/26C08F283/06C08F222/06C08F222/22
CPCC04B7/153C04B7/24C04B7/26C04B24/2652C04B28/04C04B2111/00017C08F283/065C04B2103/302C04B18/22C04B22/143C08F222/06C08F222/22Y02P40/10
Inventor 郑百文
Owner 北京鸿成科技有限责任公司
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