Novel coal gangue building block

A coal gangue and block technology, applied in ceramic forming machines, clay mixing devices, clay preparation devices, etc., can solve the problems of occupying large land and polluting the environment, and achieve the effects of saving land, protecting land resources, and saving energy

Inactive Publication Date: 2019-06-28
潘雨婷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only occupy a large amount of land, but also seriously pollute the environment

Method used

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  • Novel coal gangue building block

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Experimental program
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Effect test

Embodiment Construction

[0022] 1. Ingredients, the material weight ratio is as follows: 71% for coal gangue, 13% for carbide slag, and 16% for water.

[0023] 2. Pulverization, the coal gangue and calcium carbide slag are pulverized separately by an impact pulverizer.

[0024] 3. Stir, put the pulverized material into a twin-shaft mixer, and add water for continuous stirring.

[0025] 4. For aging, put the stirred mixture in a conical steel silo for digestion. In order to prevent the material from agglomerating in the steel silo, a vibrator is installed on the silo wall.

[0026] Compression molding, the molding pressure is 2MPa, using two pressurization methods. The molding equipment adopts special equipment, which takes into account the pre-compression mechanism, which allows the air in the pre-compressed billet to be discharged in a short period of time through the interval after the first molding (pre-compression). When molding (main pressure), a greater pressure is applied to make the pressed...

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Abstract

The invention discloses a novel coal gangue building block. The novel coal gangue building block is characterized by being prepared from the following steps: (1) burdening: preparing the following materials in percentage by weight: 70%-72% of coal gangue, 12%-14% of acetylene sludge and 15%-17% of water; (2) crushing; (3) stirring; (4) ageing: putting the stirred mixture into a cone-shaped steel material bin, carrying out digestion, and setting a vibrator on the wall of a bin; and (5) carrying out compression molding in a double pressurizing manner at 2MPa; (6) static pausing; and (7) steam curing. The novel coal gangue building block is safe, reliable and strong in practicability. The novel coal gangue building block has the beneficial effects that the environmental pollution is reduced,the land is saved, and the energy source is saved.

Description

technical field [0001] The invention relates to a coal gangue building block, which is suitable for the field of materials. Background technique [0002] Coal gangue is a kind of solid waste discharged during the production process of coal industry. Not only occupy a large amount of land, but also seriously pollute the environment. The long-term open-air stacking of coal gangue emits a large amount of toxic and harmful gases, polluting the air, and the SO2 gas produced in it combines with the water in the air to form acid rain. Acid rain not only corrodes metal structures but also destroys the growth of plants, flows into rivers and destroys aquatic organisms, seeps into the ground and pollutes groundwater sources, and endangers people's health. If coal gangue can be used to make blocks, resources can be comprehensively utilized, thereby realizing a sustainable development strategy. [0003] Calcium carbide slag is the precipitate after hydrolysis of calcium carbide, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10B28B3/02B28B11/24B28C3/00
Inventor 潘雨婷
Owner 潘雨婷
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