Artificial stone and preparation method thereof

A technology of artificial stone and slag liquid, applied in the field of artificial stone, can solve problems such as utilization, and achieve the effect of reducing the content, reducing the impact and reducing the amount of use

Active Publication Date: 2017-06-13
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology allows for efficient utilization of resources through combining different types of industrial processes that produce various products like ceramics. By burning fuel together with raw materials during pyrolysis, this results in less harmful emissions compared to traditional methods where fossil fuels were burned. Additionally, the resulting cerams have improved properties over naturally occurring rocks while being more environmentally friendly due to their low carbon footprint. Overall, these technical benefits make them better suited for applications related to construction materials.

Problems solved by technology

This patents describes various techniques used during the manufacturing of synthetic stones made by burning clay mineral bricks containing natural ingredients like silica fume, bentonite, talc, coarse aggregates (natural particles), ceramics, etc., which are important building elements due to their excellent properties including strength, durability, impact resistance, insulating property, thermal stability, chemical reactions between these substances, and lightweight characteristics. However, current technologies cannot efficiently create artificial rocks from coal residue generated in this industry because they require expensive equipment and complicated steps.

Method used

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  • Artificial stone and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0026] The invention provides a method for preparing artificial stone, such as figure 1 As shown, the first coal material and the first gasification agent are gasified in the gasification unit to obtain molten slag liquid and crude gas; the molten slag liquid discharged from the gasification unit is directly cast become artificial stone.

[0027] In the present invention, the molten slag liquid is not quenched into a solid slag material and discharged from the gasification unit, but the molten slag liquid is maintained at high temperature and flowing liquid state for slag discharge, and then the molten slag liquid enters the slag It is cast into artificial stone in a liquid forming system.

[0028] According to the present invention, the method further includes: feeding dry slag powder into the gasification unit, the dry slag powder is fly ash, calcium carbide production slag, blast furnace slag and / or sulfuric acid production waste slag, the dry slag powder The melting point

Embodiment 1

[0067] This example illustrates the preparation method of the artificial stone of the present invention.

[0068] according to figure 1 The flow shown

[0069] (1) Gasification: the coal of Daliuta Mine in Shendong mining area is ground into coal material (average particle size is 0.09mm) through the coal milling unit, and the fly ash of Shenmu electric field is ground into dry slag powder (average particle size) The particle size is 0.09mm), and then respectively enter the gasification unit through the pneumatic conveying unit and contact with oxygen for gasification reaction. The total amount of coal material added is 500kg / km 3 Syngas, dry slag powder added at 100kg / km 3 For syngas, the total amount of gasification agent (oxygen) added is 350Nm 3 / km 3 Syngas, the gasification reaction temperature is 1400°C.

[0070] The gasification unit is a gasifier, such as image 3 As shown, the side wall of the gasification chamber is provided with a first nozzle for injectin

Embodiment 2

[0075] This example illustrates the preparation method of the artificial stone of the present invention.

[0076] according to figure 1 The flow shown

[0077] (1) Gasification: The coal of Bulianta Mine in Shendong Mining Area is ground into coal material (average particle size is 1 mm) through the coal grinding unit, and the sulfuric acid waste residue is ground into slag powder (average particle size is 0.1 mm) through the waste residue grinding unit mm), and then through the pneumatic conveying unit respectively into the gasification unit to contact with oxygen for gasification reaction, the total amount of coal material added is 500kg / km 3 Syngas, dry slag powder added at 100kg / km 3 For syngas, the total amount of gasification agent (oxygen) added is 400Nm 3 / km 3 Syngas, the gasification reaction temperature is 1350°C.

[0078] The gasification unit is a gasifier, such as image 3 As shown, the side wall of the gasification chamber is provided with a first nozzl

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Abstract

The invention discloses an artificial stone and a preparation method thereof. The method comprises the following steps: performing gasification reaction on a first coal material and a first gasifying agent in a gasifying unit to obtain molten-state residue liquid and raw gas; directly casting the molten-state residue liquid discharged from the gasifying unit into the artificial stone. By the method, coal residue generated by coal gasification is subjected to waste utilization to produce the artificial stone, the coal residual content of the raw gas is reduced, and the pressure of subsequent gas purification is reduced.

Description

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Claims

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Application Information

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Owner CHNA ENERGY INVESTMENT CORP LTD
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