Built-in water curtain wall in dust collection apparatus

Abstract

The invention provides a built-in water curtain wall in a dust collection apparatus. The built-in water curtain wall includes a rectangular metal frame. A waved metal screen is installed in the metal frame. The waved metal screen includes 7-16 layers in a laminated manner to a certain thickness. A plurality of water inlet pores are formed in each of an upper frame, a lower frame, a left frame and a right frame and a upper end surface, a lower end surface, a left end surface and a right end surface of the metal frame. The water inlet pores are uniformly distributed. The water curtain wall is installed in a dust collection apparatus, wherein dust, when enters the collection apparatus, is fully contacted with a water film formed on the water curtain wall, thereby delaying the retention time of an adsorption solution in the dust gas and further achieving the object of absorbing the dust through the adsorption solution. The built-in water curtain wall greatly improves the adsorption effect of the adsorption solution on the dust. The structure also reduces air resistance in the dust collection apparatus and greatly reduces particle temperature in a granulation column, thereby further saving energy.

Description

technical field [0001] The invention relates to a dust recovery device, which is a built-in water curtain wall of the dust recovery device. Background technique [0002] Since the dust in the urea granulation tower contains more harmful gases and is more harmful, how to completely purify the dust is a difficult problem. The existing prilling tower dust recovery device generally adopts nozzle cloth liquid absorption, and uses fillers to absorb water to recover dust. The disadvantage of this structure is that the dust absorption rate is low, and it is easy to form resistance to the air circulation of the prilling tower. The loss is large, resulting in high cost of dust recovery, and the compliance rate of discharged dust is low, and the problem of polluting the environment cannot be fundamentally solved. Contents of the invention [0003] The object of the present invention is to provide a built-in water curtain wall of a dust recovery device, which can solve the deficienci...

AI Technical Summary

Problems solved by technology

The existing prilling tower dust recovery device generally adopts nozzle cloth liquid absorption, and uses fillers to absorb water to recover dust. The disadvantage of this structure is that the dust absorption rate is low, and it is easy to form resistance to the air circulation of the prilling tower. The loss is large, resulting in high dust recovery costs, and the compliance rate of dust discharge is low, and the problem of polluting the environment cannot be fundamentally solved

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