Cooling crystallization device

Abstract

Cooling and crystallization equipment, which includes a cooling tower, a crystallization tank and a circulating pump. The cooling tower also includes a cylinder, a spray device, a material sieve plate and a fan. There is an air inlet at the bottom of the cylinder and an air outlet at the top. At the air outlet of the body, the spray device includes a feed pipe, an elbow and a nozzle. The feed pipe penetrates into the cylinder from the outside of the cylinder. One end of the elbow is connected to the feed pipe and the other end is connected to the nozzle. The nozzle is located in the cylinder. The material screen The plate is set under the nozzle, the material sieve plate is provided with sieve holes, and the crystallization tank is provided with a feed port and a discharge port. The feed port of the crystallization tank is connected with the cooling tower, and the discharge port is connected with one end of the circulation pump. One end is connected to the sprinkler of the cooling tower. Compared with the cooling and crystallization equipment in the prior art, the present invention not only occupies a small area, is low in cost, and is convenient for maintenance, but also has low operating costs, is not easy to block parts, and has high cooling and crystallization efficiency.

Description

technical field [0001] The invention relates to the technical field of cooling crystallization equipment, in particular to an air cooling crystallization equipment. Background technique [0002] The production process of inorganic salt solution usually includes chemical reaction, rough separation, concentration, cooling crystallization and other steps. At present, the commonly used equipment for cooling and crystallizing inorganic salt solution includes natural cooling crystallization device, jacket cooling crystallizer and coil cooling crystallizer. These three types of equipment are widely used, but they all have many shortcomings. [0003] Among them, the natural cooling crystallization device belongs to the most traditional cooling crystallization equipment, which has slow cooling speed, large floor space, high labor intensity, serious waste and very low production efficiency, and is not suitable for large-scale production of inorganic salt solutions. [0004] Secondly,...

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Problems solved by technology

[0003] Among them, the natural cooling crystallization device belongs to the most traditional cooling crystallization equipment, which has slow cooling speed, large floor space, high labor intensity, serious waste and very low production efficiency, and is not suitable for large-scale production of inorganic salt solutions

[0004] Secondly, the jacket cooling crystallizer and coil cooling crystallizer, they send cooling water into the jacket or coil, and cool and crystallize the solution through heat exchange through the partition wall. The biggest disadvantage of this partition cooling crystallization process equipment is that it consumes a lot of cooling Water, the production cost is high, and the heat exchange surface of the equipment is easy to scale, the convection of the heat exchange surface is limited, so the production efficiency is not high

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