Coal gangue haydite and its prepn process

A technology of coal gangue ceramsite and coal gangue powder, applied in ceramic products, other household appliances, sustainable waste treatment and other directions, can solve problems such as endangering human health, destroying ecological balance, destroying crops and trees, etc., and achieving good sound insulation effect , the effect of low thermal conductivity and broad resources

Inactive Publication Date: 2002-02-27
杨普安
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because coal gangue contains sulfur water, it will spontaneously ignite and release harmful gas, which not only pollutes air and water sources, destroys crops and trees, disrupts ecological balance, and seriously endangers h

Method used

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  • Coal gangue haydite and its prepn process

Examples

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Comparison scheme
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Example Embodiment

[0023] Example 1: Preparation of coal gangue ceramsite

[0024] The specific steps for preparing coal gangue ceramsite are as follows figure 1 Shown: 1. Beneficiation: remove impurities from coal gangue, crush large pieces of coal gangue with a hand hammer, select coal gangue with a diameter of ≤10mm and put it in a crusher for crushing, and then pass through Raymond mill air separation to be processed into Coal gangue powder of 400 mesh, 35% clay (weight percentage), and 65% shale to form a binder; 2. Ingredients: 85% (weight percentage) of the above coal gangue powder, 5% binder and 10% A mixture composed of fly ash expansion curing agent; 3. Put the aforementioned mixture into a screw mixer and stir evenly; 4. Ball making: Transfer the above mixture to a disc ball machine through a belt, and inject 3% of the mixture in a spray-like manner Water, the inertia of the material running with the disc, will naturally form a spherical shape. It will roll through the ball forming area a...

Example Embodiment

[0025] Example 2: The specific steps for preparing coal gangue ceramsite are as follows figure 1 Shown as follows: 1. Beneficiation: remove impurities from coal gangue, crush large pieces of coal gangue with hand hammer, select coal gangue with a diameter of ≤10mm and put it into a crusher to be crushed and processed into 250 by Raymond mill air separation. Purpose coal gangue powder; 40% clay (weight percentage) and 60% shale are used to form the binder; 2. Ingredients: 75% (weight percentage) of the above coal gangue powder, 10% of the above binder and 5% Additives and 10% fly ash expansion curing agent mixture is made into a mixture; 3. Put the aforementioned mixture into a screw mixer and stir evenly; 4. Ball making: transfer the evenly stirred mixture to the disc ball making machine through a belt, Inject 5% water in a spray-like manner. The inertia of the material running with the disc will naturally form a ball. The ball is rolled through the ball forming area and the ball ...

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Abstract

The present invention discloses a coal gangue ceramicite and its preparation method. It is comprises (wt%) 75-85% of coal gangue powder, 5-10% of adhesive, 0-5% of additive and 5-10% of flyash expansion solidifying agent mixture, and its preparation method incldues the following steps: selecitng material, grinding, mixing materials, stirring, making pellet, drying, sintering and sorting, in whichthe described selected material is powdered coal gangue, and its preheaitng drying temp. is 200-600 deg.C, a its sintering temp. is 1.50-1200 deg.C. The invented coal gangue ceramicite possesses highstrength, light weight, low thermal coductivity, high refractoriness and other advantages, can be used in concrete, ceramcite hollow block, reinforced concrete, floor brick and other applications.

Description

technical field [0001] The invention relates to a building material and a preparation method thereof, in particular to a coal gangue ceramsite and a preparation method thereof. Background technique [0002] my country's coal gangue resources are very rich, and the annual discharge of coal gangue exceeds 100 million tons. Because coal gangue contains sulfur water, it will spontaneously ignite and release harmful gas, which not only pollutes air and water sources, destroys crops and trees, disrupts ecological balance, and seriously endangers human health, but also occupies a large amount of land, causing waste of resources and affecting production and development. The treatment and comprehensive utilization of coal gangue has become an urgent problem to be solved. Contents of the invention [0003] The purpose of the present invention is to solve the problem of coal gangue treatment and comprehensive utilization, to provide a kind of coal gangue ceramsite with high strength...

Claims

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Application Information

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IPC IPC(8): B09B3/00C04B18/12C04B38/00
CPCY02W30/91
Inventor 杨普安
Owner 杨普安
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