An environmentally friendly cement clinker manufacturing process

A technology of cement clinker and manufacturing process, applied in cement production and other directions, can solve the problems of fluctuation of cement clinker quality, product life cycle restriction, fluctuation of cement performance indicators, etc., to improve stability, reduce temperature, and prevent skinning. Effect

Active Publication Date: 2021-07-13
JILIN YATAI CEMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing Portland cement clinker is basically prepared from high-quality limestone, clay, and iron ore. The disadvantage is that natural resources such as clay and iron ore are used as raw materials for cement clinker production. With the increasing scarcity of resources, the product Life cycle is severely constrained
In addition, the existing Portland cement clinker has no auxiliary facilities and advanced means in the process of raw meal preparation and clinker firing. Frequent adjustments will cause fluctuations in cement performance indicators

Method used

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  • An environmentally friendly cement clinker manufacturing process
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Effect test

Embodiment 1

[0035] This embodiment provides an environment-friendly cement clinker manufacturing process, specifically, comprising the following steps:

[0036] (1) Select industrial waste resources such as limestone raw materials, aluminum waste resources and iron waste resources as raw materials, and then use a neutron activation analyzer to carry out online batching of each component raw material, and calculate the need to adjust in real time according to the requirements of the production target The ratio of various raw materials, and adjust the ratio of each raw material every 3 minutes, so as to achieve the maximum use of waste resources (refer to the attached figure 2 ); Then, grind the prepared raw materials into powder with grinding equipment to obtain the raw meal required for the preparation of cement clinker. In addition, the raw meal after grinding can be collected into the raw meal homogenization warehouse through the cyclone Store for backup. Among them, limestone can be ...

Embodiment 2

[0041] A kind of environment-friendly cement clinker manufacturing process that this embodiment provides is on the basis of embodiment 1, adopts different decomposition temperature, calcining temperature and adopts the per hour of different paint slag, activated carbon waste and waste limestone powder The feeding amount, specifically, includes the following steps:

[0042] (1) Select industrial waste resources such as limestone raw materials, aluminum waste resources and iron waste resources as raw materials, and then use a neutron activation analyzer to carry out online batching of each component raw material, and calculate the need to adjust in real time according to the requirements of the production target The ratio of various raw materials, and adjust the ratio of each raw material every 3 minutes (refer to the attached figure 2 ); Then, grind the prepared raw materials into powder with grinding equipment to obtain the raw meal required for the preparation of cement clin...

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Abstract

The invention discloses an environment-friendly cement clinker manufacturing process, which belongs to the field of cement production. The environmentally friendly cement clinker manufacturing process includes the following steps: firstly, limestone raw materials and industrial waste resources are selected as raw materials; then, the raw materials are batched and ground on-line to obtain raw meal; then, the raw meal obtained above is passed through pre-processing After the heater is heated up, it is sent to the calciner, and paint slag, activated carbon waste and waste limestone powder are added to the calciner as auxiliary materials to participate in the decomposition; then, the decomposed raw meal is sent to the rotary kiln for calcination , and after rapid cooling, the cement clinker product can be obtained. The present invention can realize utilization by introducing raw materials such as activated carbon, paint slag, waste limestone powder, etc., and by establishing automatic batching process of raw meal, temperature control process of calciner, anti-skinning and cleaning process of crusting, high-temperature imaging and temperature tracking technology. All kinds of industrial waste residues are used for the purpose of producing high-quality environmentally friendly cement clinker.

Description

technical field [0001] The invention relates to the field of cement production, in particular to an environment-friendly cement clinker manufacturing process. Background technique [0002] Cement refers to a powdery hydraulic inorganic gelling material, which can be formed into a slurry after being stirred with water, and can be hardened in air or in water. In addition, cement can also firmly bond sand, stone and other materials together, and can be widely used in civil engineering, water conservancy, national defense and other projects. [0003] The development direction of the cement industry in the new era is energy saving and green development. By implementing measures such as energy saving and emission reduction, adhering to green development, strengthening energy saving and emission reduction and comprehensive utilization of resources, and vigorously developing circular economy and low-carbon economy, the clean production of the cement industry and the green developme...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C04B7/43C04B7/44C04B7/42C04B7/24
CPCC04B7/24C04B7/425C04B7/434C04B7/44Y02P40/10
Inventor谷万一朱君王中革徐宏彬赵军
OwnerJILIN YATAI CEMENT