A device for eliminating fouling on the inner wall of a carbonization tower and condensation tubes

Abstract

The invention discloses a device for removing sediment incrustation on a condensation tube nest and the inner wall of a carbonizer. The device comprises a hard disk (3), the outer edge wall of the hard disk (3) is in sliding fit with the inner wall of the carbonizer (1), an air bag hole (5) is formed in the center of the hard disk (3), an air bag (6) is installed in the air bag hole (5), a plurality of connecting rib plates (4) are arranged on the periphery of the air bag (6), the connecting rib plates (4) are connected with the inner side wall of the air bag hole (5), a hose (7) is arranged on the air bag (6), the hose (7) is communicated with an air source (9) outside the carbonizer (1), a condensation tube hole (10) corresponding to the condensation tube nest (2) is also formed in the hard disk (3), and the condensation tube nest (2) is in sliding fit with the condensation tube hole (10). The device has the advantages of being high in working efficiency, low in energy consumption and low in production cost.

Description

technical field [0001] The invention relates to a descaling device, in particular to a device for eliminating fouling on the inner wall of a carbonization tower and condensation tubes. Background technique [0002] In the production of soda ash, the carbonation reaction of ammonia mother liquor II absorbing carbon dioxide and producing sodium bicarbonate occurs in the carbonization tower. Because sodium bicarbonate and crystals adhere to the carbonization tower's cap, faceplate, bottom cooling water tubes, carbonization tower dead corners, etc., forming scars, these scars affect the absorption and cooling efficiency, and need to be cleaned and dissolved with ammonia mother liquor II The inner scar block, the carbonization tower is called the cleaning tower. After the carbonization tower is cleaned, it is changed to a soda production operation, and the carbonization tower is called a soda production tower. [0003] Due to the influence of factors such as tower conditions, m...

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Problems solved by technology

[0004] Therefore, the fouling in the carbonization tower is relatively serious, especially for the production of light nano-calcium carbonate. The formation time of the fouling on the inner wall of the carbonization tower and the condensation tube is short, and it is difficult to remove the fouling.

[0005] At present, there are two methods of washing the carbonization tower: one is to use "direct-flow water washing carbonization tower", that is, to use a circulating water pump or a primary water pump to add water to the carbonization tower to a certain tower pressure, and then use a small amount of cleaning gas to help stir and start The discharge valve at the bottom of the tower, the washing water of the carbonization tower is directly discharged into the ditch; the other is to use "boiling and washing water to wash the carbonization tower", that is, use a circulating water pump or a primary water pump to add water to the tower to a certain tower pressure, and open the bottom of the tower Boil the tower with steam at the alkali outlet or in the middle of the tower, use a small amount of cleaning gas to help stir, and use a circulation pump or a CO2 airlift to circulate the water in the tower, and recycle the washing water, but the above two methods require a lot of water resources. Moreover, the equipment needs to be stopped before operation can be performed. The most important thing is that fouling is also a part of raw materials. After cleaning and pouring out, raw materials will be wasted and production costs will be increased.

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