Ventilation cooling crystallization tower

Abstract

The invention provides a ventilation cooling crystallization tower. Air is adopted as the coolant by the tower, cooling and crystallization of the solution are ended by contact and heat exchange through the mixing of air directly with a solution, the tower comprises tower equipment, an air blower and circulation pump equipment; a demister, a liquid distributor, a filling layer, a guide cone and a guide tube are arranged in the tower equipment; the function of the demister is for removing liquid drops entrained by air, reducing material losses and protecting the environment; spiral nozzles are adopted by the liquid distributor, the liquid distributing effect is good, and blocking is not easily incurred, the function of the filling layer is for improving the contact area of air and the solution, and improving the cooling effect; the function of the guide cone and the guide tube is for improving the crystallization effect and preventing the crystallization and hardening. The ventilation cooling crystallization tower is significant in improving the cooling and crystallization effect, significant in reducing energy consumption, and has the advantages of being large in production capacity, environmentally friendly and pollution-free, simple in operation and the like.

Description

technical field [0001] The invention belongs to a cooling crystallization device, in particular to a cooling crystallization device using air as a cooling medium. Background technique [0002] Cooling and crystallization equipment is an important chemical unit equipment. It cools the solution to lower the temperature, so that the solute in the solution reaches the supersaturated condition, and the solute molecules or ions in the solution are arranged regularly on the nodes of the space lattice to form a solid phase crystal. In modern chemical production, many compounds are produced by cooling and crystallization. At present, the traditional cooling and crystallization equipment in China mainly includes partition cooling and crystallization equipment and vacuum cooling and crystallization equipment. [0003] Partition cooling crystallization equipment can be divided into jacket cooling crystallization equipment, tubular cooling crystallization equipment, and plate cooling cr...

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Problems solved by technology

Through years of application practice, the Chinese utility model patent 200920274070.0 "air-cooled crystallization tower" still has some shortcomings and deficiencies: first, the distribution of liquid is not uniform, and the mixing and contact of gas and liquid are not sufficient, which restricts the heat exchange effect and affects the production capacity; The crystallization material liquid deposits and hardens at the bottom, which affects the production operation; the third is that the air entrained liquid droplets are discharged, resulting in serious material loss and polluting the atmospheric environment; the fourth is that the induced draft fan is severely corroded by hot and humid air

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