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Method for treating clinker dust by sintering process

A treatment method, sintering technology, applied in solid waste removal, aluminum oxide/aluminum hydroxide, etc., can solve problems affecting the control of technical indicators, affecting on-site sanitation, and excessive dust accumulation, and achieves significant economic and social benefits , physical health protection, and the effect of improving the working environment

Inactive Publication Date: 2008-04-09
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Abstract
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Problems solved by technology

Among them, after the sintering clinker is fired, the dust in the conveying system is recovered by electric dust collection and then sent to the clinker dissolution and separation washing system or packaged for takeaway. Due to the fine dust particles, the settling tank in the subsequent process often becomes muddy, affecting all Control of technical indicators
However, the takeaway dust is limited by the market and sales channels, and the sales volume is limited, and the dust in the on-site packaging is large and messy, which affects the sanitation of the site

Method used

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  • Method for treating clinker dust by sintering process

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Embodiment 1

[0015] In the sintered alumina production process, a mixing tank is built under the electric dust collector of the clinker conveying system, and then the raw slurry sent by the batching process is directly introduced into the mixing tank through a pipeline, and the raw slurry and the mixing tank are mixed. The dust is fully stirred and mixed, and then pumped into the slurry tank of the firing process, and sent into the kiln together with the existing raw slurry for sintering into qualified clinker, so as to fully recover the alumina and sodium oxide in it, reaching The purpose of saving energy and reducing consumption.

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Abstract

A processing method for clinker dust of the sintering method relates to a method for utilizing dust of a clinker transmitting system in the process of aluminum oxide production by the sintering method. The invention is characterized in that dust of the clinker transmitting system in the process of aluminum oxide production by the sintering method is returned to a slurry tank in clinker burning process and then sent to a clinker kiln for sintering. The method of the invention solves the treatment issue of dust of the clinker transmitting system in the process of aluminum oxide production by the sintering method, reduces the influence on the following production processes and also improves the poor field environment sanitation caused by dust in sales. Through secondary sintering of dust of the clinker transmitting system in the process of aluminum oxide production by the sintering method, aluminum oxide and sodium oxide in the dust of the clinker transmitting system in the process of aluminum oxide production by the sintering method can be effectively reclaimed.

Description

technical field [0001] The invention discloses a method for treating clinker dust in sintering method, and relates to a method for utilizing dust in a clinker conveying system in the production process of sintering alumina in sintering method. Background technique [0002] In the production process of mixed alumina, there are two major processes: sintering method and Bayer method. The sintering method includes the preparation of ore raw slurry, firing of raw slurry, clinker dissolution separation and washing system, and sodium aluminate solution. Desiliconization and filtration refining, decomposition of sodium aluminate solution and roasting of aluminum hydroxide; Bayer process production includes pulp preparation, dissolution, filtration and purification, separation washing and decomposition of sodium aluminate solution. Among them, after the sintering clinker is fired, the dust in the conveying system is recovered by electric dust collection and then sent to the clinker d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/02B09B3/00
Inventor 付群生
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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