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Process for cooling of high temp. sodium carbonate

A cooling process, soda ash technology, applied in the direction of alkali metal compounds, alkali metal carbonates, inorganic chemistry, etc., can solve the problems of increasing cooling water flow, small contact area, low efficiency, etc., to speed up the cooling process and dust removal efficiency High, high heat transfer efficiency

Active Publication Date: 2006-01-25
SHANDONG TIANLI DRYING TECH & EQUIP
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Problems solved by technology

Therefore, the cooling rate is slow and the efficiency is low
[0004] 2. Due to the small contact area between equipment and materials, the flow of cooling water must be increased, resulting in increased operating costs; in order to meet the cooling requirements, the power of the alkali cooler must be increased, which will also increase the operating costs
[0005] 3. Since all materials pass through the alkali cooler at one time, if material classification is required, that is, coarse particles and fine particles must be separated, this equipment cannot meet this requirement

Method used

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  • Process for cooling of high temp. sodium carbonate

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Embodiment Construction

[0013] Accompanying drawing has provided process flow chart of the present invention. The high-temperature soda ash at a temperature of 160°C enters the fluidized bed cooler 3 through the conveying equipment, and is relatively uniformly dispersed into the bed through the built-in distributor of the fluidized bed cooler 3 . After the air is filtered and dedusted by the air filter 1, it enters the blower 2, which is powered by the blower 2 to form cold air and enters the fluidized bed cooler 3. On the one hand, the material is kept in a normal fluidized state, and on the other hand, it is separated from the material. Heat exchange to cool down the material. The fluidized state means that the material in the equipment is blown by the fluid and suspended in the fluid for free movement under a certain wind speed. The particles collide and mix with each other, and the bed height rises. There is a substantially horizontal material surface at the top of the layer, on which particles ...

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Abstract

A process for cooling the high-temp sodium carbonate includes such steps as delivering the high-temp raw material in fluidized-bed cooling machine, dispersing it on the bed layer by built-in distributor, introducing cold air for fluidizing material, lowering the temp by said cold air and the built-in cooler, discharging, and dusting the hot air by cyclone duster and cloth bag duster.

Description

(1) Technical field: [0001] The invention relates to a process method for cooling high-temperature soda ash. (two) background technology: [0002] The temperature of soda ash needs to drop from 160°C to below 70°C during drying and cooling. At present, in the drying process of soda ash, agitating soda cooler is mostly used for cooling. The agitating soda cooler is a large auger conveyor. The casing of the machine is also passed through cooling water, and through the continuous stirring of the blades, the material is in constant contact with the surface of the equipment passing through the cooling water, and the high-temperature soda ash is cooled down. But this soda cooler has the following disadvantages: [0003] 1. The contact area with the material is small, because the heat exchange area inside the equipment is limited because it only contacts the material through the inner surface of the equipment. Therefore, the cooling rate is slow and the efficiency is low. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01D7/00
Inventor 马训强彭丽华苗帅郭文苗楠李佳磊梁国林毛荣
Owner SHANDONG TIANLI DRYING TECH & EQUIP
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