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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 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

Method used

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  • Coal gangue haydite and its prepn process

Examples

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Effect test

Embodiment 1

[0023] Embodiment 1: Preparation of gangue ceramsite

[0024] The specific steps for preparing coal gangue ceramsite are as follows: figure 1 Shown: 1. Mineral dressing: remove impurities in coal gangue, crush large pieces of coal gangue with a hand hammer, pick out coal gangue with a diameter of ≤10mm and put it into a crusher for crushing, and then pass through Raymond mill air separation to process into 400 purpose coal gangue powder, then use (weight percentage) clay 35%, shale 65% to form adhesive; 3. Put the above-mentioned mixture into the spiral mixer and stir evenly; 4. Ball making: transfer the above-mentioned mixture to the disc-type ball making machine through the belt, and inject 3% of the Water, the material will naturally form a spherical shape with the inertia of the rotation of the disc, and roll through the ball forming area and the ball discharging area to form a Φ10mm material ball, and the prepared material ball will pass through the elevator to the mater...

Embodiment 2

[0025] Embodiment 2: the specific steps of preparing gangue ceramsite are as figure 1 Shown: 1. Mineral processing: remove impurities in coal gangue, crush large pieces of coal gangue with a hand hammer, pick out coal gangue with a diameter of ≤10mm and put it into a crusher for crushing, and process it into 250 Purpose coal gangue powder; then use (weight percentage) clay 40%, shale 60% to form adhesive; The mixture of additives and 10% fly ash expansion and curing agent is made into a mixture; 3. Put the above-mentioned mixture into a spiral mixer and stir evenly; 4. Ball making: transfer the uniformly stirred mixture to a disc-type ball making machine through a belt, Inject 5% water in the form of a spray, and the material will naturally form a spherical shape with the inertia of the disk, and roll through the ball forming area and the ball discharging area to form a material ball with a diameter of 15mm. The prepared material ball will pass through the elevator to the inle...

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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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