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Application of high silicon and low crystallization siliceous raw materials in the production of cement clinker

A technology of siliceous raw materials and cement clinker, which is applied in the direction of cement production, etc., to achieve the effects of reducing production operation requirements, reducing power consumption, and improving cement strength

Active Publication Date: 2021-02-09
CHINA RESOURCES CEMENT TECH RES DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the adverse effects caused by the excessively high quartz content in the existing siliceous raw materials on the grindability of raw materials, the purpose of the present invention is to provide the application of high-silicon and low-crystal siliceous raw materials in the production of cement clinker. At the same time, it saves energy consumption and improves the strength of clinker

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  • Application of high silicon and low crystallization siliceous raw materials in the production of cement clinker
  • Application of high silicon and low crystallization siliceous raw materials in the production of cement clinker
  • Application of high silicon and low crystallization siliceous raw materials in the production of cement clinker

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Embodiment

[0021] The application of high-silicon and low-crystalline siliceous raw materials in the production of cement clinker comprises the following steps:

[0022] 1. Do mineral analysis and chemical composition analysis on the siliceous raw materials provided by several manufacturers. The results are shown in Table 1. Among them, the mineral element ratios of the siliceous raw materials provided by the three manufacturers of Mule, Polyflor and Zhongjia are between (0.8- 0.9): Between 1.0, it belongs to the so-called high-silicon and low-crystalline siliceous raw material of the present invention.

[0023] 2. Mix 6 kinds of siliceous raw materials in Table 1 with the same content (14%), and carry out raw material batching, and the specific proportioning ratio is shown in Table 2.

[0024] Through grinding, the quartz content of the raw material entering the kiln, the quartz content of the sieve residue and the fineness of the raw material of the 6 groups of tests were detected, as ...

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Abstract

The invention discloses the application of high-silicon and low-crystallization siliceous raw materials in the production of cement clinker. The high-silicon and low-crystallization siliceous raw materials refer to silicon whose mass ratio of quartz to silicon dioxide is (0.8‑0.9):1.0 quality raw materials. Within the range of the mineral element ratio of the present invention, the siliceous raw material is ground and passed through a 45 μm sieve, and the quartz content in the sieved residue is equivalent to that of the raw material entering the kiln, indicating that the raw material of this ingredient is easy to grind and has good uniformity. The present invention selects SiO 2 Siliceous raw materials with high content and low mineral crystallinity, under the same fineness control conditions, the production of cement raw meal mills increases and the power consumption decreases, which greatly reduces the production operation requirements and improves the cement strength. The performance of the cement clinker produced by the present invention meets all the performance requirements for cement with strength grades 32.5 and 42.5 in GB / T31289-2014.

Description

technical field [0001] The invention belongs to the field of cement clinker production, and in particular relates to the application of high-silicon and low-crystallization siliceous raw materials in the production of cement clinker. Background technique [0002] Siliceous raw material is an important mineral resource widely distributed in nature. It is based on silicon dioxide (SiO 2 ) is the general term for the main chemical composition and mineral raw materials with quartz as the main mineral composition, including natural quartz sand, quartzite, quartz sandstone, vein quartz, and powder quartz. [0003] Siliceous materials account for about 12 to 15% of the raw material ingredients for cement production, a relatively large proportion, and the price is relatively high. In the production of cement industry, siliceous raw materials with high silica content are often used, but because there is no effective selection method for siliceous raw materials, more crystalline sili...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/02C04B7/38C04B7/42C04B7/22C04B7/147C04B7/345
CPCC04B7/02C04B7/147C04B7/22C04B7/345C04B7/38C04B7/42Y02P40/10
Inventor 岳琴任兵建梁乾张琴琴尹佳芝黄洁玲
Owner CHINA RESOURCES CEMENT TECH RES DEV