阅读说明：本技术 一种掺加铅锌尾矿渣的水泥的生产方法及应用 (Production method and application of cement doped with lead-zinc tailing slag ) 是由 徐田波 曾玉奇 安卫军 朱厚君 丁启胜 于 2019-09-19 设计创作，主要内容包括：本发明涉及水泥生的技术产领域,具体是一种掺加铅锌尾矿渣的水泥的生产方法及应用,包括原料破碎、配料、磨粉、均化制得水泥生料,加入混合材料,所述混合材料为康苏煤矸石：铅锌尾矿渣=2:1；水泥生料经预热、预分解、熔融、煅烧、冷却、配料、粉磨得成品水泥,水泥生料经预热、预分解后进入温度为1350℃-1650℃的高温熔池中熔融成为熔融体；通过浸没于熔融体中的喷枪喷入燃料和助燃气体提供能量,进行水泥熔融烧成反应得到高温熔融高抗硫酸盐硅酸盐熟料；所述高抗硫酸盐硅酸盐熟料通过9%铅锌矿废渣与生料配料生成；其中,烧成反应温度：1350℃～1650℃；反应时间2～10分钟；高温熔融熟料连续地经冷却、配料、粉磨即得成品水泥。(The invention relates to the technical field of cement production, in particular to a production method and application of kinds of cement doped with lead-zinc tailing slag, which comprises the steps of crushing, batching, grinding and homogenizing raw materials to obtain cement raw materials, adding a mixed material, preheating, predecomposition, melting, calcining, cooling, batching and grinding the cement raw materials to obtain finished cement, preheating and predecomposition the cement raw materials, melting the cement raw materials into a molten pool with a high temperature of 1350-1650 ℃ to obtain a molten mass, spraying fuel and combustion-supporting gas through a spray gun immersed in the molten mass to provide energy, carrying out cement melting and firing reaction to obtain high-temperature melting high-resistance sulfate silicate clinker, wherein the firing reaction temperature is 1350-1650 ℃, the reaction time is 2-10 minutes, and the high-temperature melting clinker is continuously cooled and proportioned to obtain the finished cement.)

The production method of kinds of cement doped with lead-zinc tailing slag comprises the steps of crushing, batching, grinding and homogenizing raw materials to obtain cement raw materials, and is characterized in that a mixed material is added, the mixed material is consu coal gangue, the lead-zinc tailing slag =2:1, the cement raw materials are preheated, pre-decomposed, melted, calcined, cooled, batched and ground to obtain finished cement, the cement raw materials are preheated, pre-decomposed and then enter a high-temperature molten pool at 1350 ℃ -1650 ℃ to be melted into a molten mass, fuel and combustion-supporting gas are sprayed through a spray gun immersed in the molten mass to provide energy, the cement is melted and burnt to obtain high-temperature melting high-resistance sulfate silicate clinker, the high-resistance sulfate silicate clinker is generated by 9% of lead-zinc ore waste slag and batching, the burning reaction temperature is 1350 ℃ -1650 ℃, the reaction time is 2-10 minutes, and the high-temperature melting clinker is continuously cooled, batched and ground to obtain the finished cement.

2. The method for producing kinds of cement blended with lead-zinc tailings as claimed in claim 1, wherein the lead-zinc tailings is blended in an amount of 5% when used as a cement admixture.

3. Use of kinds of tailing slag of any one of claims 1 to 2 for producing cement by adding lead-zinc tailings.

4. Use of the admixture of lead-zinc tailings as claimed in claim 3 in the production of 42.5 cement.

Technical Field

The invention relates to the technical field of cement production, in particular to a production method and application of kinds of cement doped with lead-zinc tailing slag.

Background

The lead-zinc tailings in China are rich in resources, reserves are in the top of the world, but with the improvement of the exploitation amount of the lead-zinc tailings, the pollution to the environment is increasingly aggravated, and the stacking of waste residues not only occupies a large amount of farmlands, but also pollutes the environment, so that the waste residues are comprehensively utilized as composite raw materials to become economic and practical new mineral resources, so that the environmental pollution can be reduced, the ecological environment can be changed, the national soil can be improved, the economic consumption of enterprises on the raw materials can be reduced, and the method is a new direction for energy conservation and environmental protection.

Disclosure of Invention

In order to overcome the problems in the background art, the invention provides a production method and application of kinds of cement doped with lead-zinc tailing slag, and the technical scheme is as follows:

A process for preparing cement doped with Pb-Zn tailings includes such steps as crushing raw materials, proportioning, grinding, homogenizing to obtain raw cement, adding the mixture of Cunku coal gangue and Pb-Zn tailings =2:1, preheating, predecomposition, fusing, calcining, cooling, proportioning and grinding to obtain cement product, preheating, predecomposition, fusing in high-temp molten pool at 1350-1650 deg.C to obtain fused mass, immersing in fuel and combustion-supporting gas to provide energy, and fusing and calcining to obtain silicate clinker of high-temp molten high-anti-sulfate, which is prepared from 9% Pb-Zn ore dregs and raw material, and mixing with raw material at 1350-1650 deg.C for 2-10 min.

According to the scheme of the step , when the lead-zinc tailings are used as a cement admixture, the addition amount is 5%.

Compared with the prior art, the invention has the beneficial effects that: the environmental pollution can be reduced, the ecological environment can be changed, the land can be improved, and the economic consumption of enterprises on raw materials can be reduced; when the lead-zinc tailings are used as cement admixture, the lead-zinc tailings have good compatibility with the additive, so that the use amount of the additive is effectively reduced;

the tailings of the lead-zinc ore can be used as industrial waste residues of lead-zinc production enterprises, can be used as a siliceous correction raw material for raw material blending, and the chemical components of the industrial waste residues are analyzed to find that the chemical components are close to sandstone, the main component is SiO2, the alkali content is about 0.9 percent, and the alkali content of clinker can be effectively reduced when the tailings of the lead-zinc ore are used for the raw material blending.

The lead-zinc tailings are used for cement production instead of shale as a cement admixture, the standard consistency of the cement is reduced by 0.8 percent compared with that of the shale, the clinker proportion is reduced by 1 percent, and the compatibility with an additive is improved. And (5) sending the sample to a cement quality supervision and quality monitoring station of the autonomous region for inspection and inspection, wherein all indexes of the cement meet the national standard.

The method effectively solves the problem of environmental pollution caused by the local lead-zinc tailings while comprehensively utilizing the three-waste resource of the lead-zinc tailings, and improves the local environmental quality.

The main technical points are as follows: when the lead-zinc tailings are used as a cement admixture, the admixture is Kangsu coal gangue: lead zinc tailings =2: 1.

Drawings

FIG. 1: a production process flow chart.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below to facilitate understanding of the skilled person.