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Circulation-type crystallizer

A crystallizer and circulation technology, applied in the direction of solution crystallization, can solve the problems of short crystallization time, high water content, low energy consumption, etc., and achieve the effect of short crystallization time, large crystal particles and low energy consumption

Inactive Publication Date: 2008-03-19
HANGZHOU LINAN JINLONG CHEM
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] In order to overcome the disadvantages in the prior art of inconvenient crystallization, slow heat transfer, severe scab, long crystallization time, low efficiency, large energy consumption, small crystal particles, and high water content, the utility model provides an automatic crystallization, A circulating crystallizer with fast heat transfer, no scab, short crystallization time, high efficiency, low energy consumption, and large crystal particles

Method used

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  • Circulation-type crystallizer

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Embodiment 2

[0018] A circulating crystallizer, except that the mother liquor return tank pipeline communicates with the intermediate tank, the other structures are exactly the same as the first embodiment.

[0019] See attached picture 2:

[0020] During work, the initial crystallization solution is placed in the head tank 9, cooled by the condenser 10 when flowing through the circulation pipeline, and then sent into the crystallization tank 1, under the action of the stirring rod 4 in the crystallization tank 1, there is constantly A small amount of crystallization and mother liquor flow into the intermediate tank 8 from the liquid outlet 6, and the lower layer of the intermediate tank 8 gathers crystals, but the overflow port 7 continuously has the mother liquor flowing out and passing into the circulation pipeline. After a certain time interval, the crystallization solution is fully mixed in the crystallization tank 1, and more and more crystals are deposited at the bottom of the cryst...

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Abstract

The invention relates to a circulating typed mould. The invention contains a crystallization container and a cooling interlayer which is arranged around the crystallization container. A stirring rod is arranged inside the crystallization container. A liquid inlet and a liquid outlet are arranged on the crystallization container. A circulating pipeline is arranged between the liquid inlet and the liquid outlet. Middle pools of the water overflow port are arranged in turn on the circulating pipeline, which are used for storing high-level tank and condenser of crystal initial solution. A circulating pump is also arranged on the circulating pipeline. A crystal liquid outlet is arranged on the lower part of the crystallization container. The crystal liquid outlet is communicated with a crystal groove. The crystal groove has a mother liquor back-in-tank pipeline which is communicated with the crystallization container. A vacuum pump is arranged on the mother liquor back-in-tank pipeline. The mother liquid of the circulating typed mould circulates back into the crystallization container, which makes the invention has high efficiency and low energy consumption.

Description

(1) Technical field [0001] The invention relates to a circulating crystallizer. (2) Background technology [0002] In the existing crystallizer, the highly concentrated solution is placed in a crystallization tank with a liquid inlet and outlet, and a cooling interlayer is arranged around the crystallization tank. A coil for cooling medium circulation is arranged in the cooling interlayer, and a stirring rod is arranged in the crystallization tank. Stir the highly concentrated solution with a rod while cooling it. After the highly concentrated solution is cooled, the highly concentrated solution crystallizes at the bottom of the crystallization tank. Pour out the mother liquor above to take out the crystallization. In this way, it is inconvenient to take crystallization, slow heat transfer, serious scab, long crystallization time, low efficiency, high energy consumption, sharp cooling of high-concentration solution, large fluctuations in solution supersaturation, and initial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D9/02
Inventor 马志高何国田
Owner HANGZHOU LINAN JINLONG CHEM
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