Industrial salt drying system and method

Abstract

The invention provides an industrial salt drying system and method. The industrial salt drying system comprises a drying system, a screening and separating system and a dust removal system. The dryingsystem comprises a drying machine. The discharging end of the drying machine is connected with a vibrating screen of the screening and separating system. The vibrating screen is provided with a dustremoval opening. The dust removal opening is connected with the dust removal system. The vibrating screen is further provided with a fine material outlet and a coarse material outlet. The coarse material outlet is connected with a blocking barrel through a pipeline. According to the industrial salt drying system and method disclosed by the scheme, the drying effect is effectively improved, and meanwhile pollution of dust generated in the material drying and separating process to the environment is reduced; materials are preheated in advance before being dried, the material drying effect and efficiency are effectively improved, and large-batch production is facilitated; and the dust removal system effectively provides a negative pressure state in the drying and separating process, dust andwater vapor can be rapidly pumped away, condensation of the water vapor is reduced, the situation that condensation water influences the product quality is avoided, and the production efficiency is effectively improved.

Description

technical field [0001] The invention relates to an industrial salt drying technology, in particular to an industrial salt drying system and a method thereof. Background technique [0002] Industrial salt is widely used in industry, and it is used in a large amount. However, it needs to be washed and dried in the production process, especially for the drying of crystals. Due to the huge output, the drying problem directly affects the quality of industrial salt. [0003] In Chinese Patent No. CN101041444A, a method for separating Glauber's salt (sodium sulfate) by freezing and crystallizing in saline solution is introduced. It undergoes pH adjustment, precooling, control of the crystallization temperature at 0-10° C., separation, and recrystallization to make a finished product. The technological process adopted in this method is actually to make saltwater into Glauber's salt containing crystal water first, then remove the free water in Glauber's salt, and finally obtain the p...

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Problems solved by technology

[0005] However, during the use of the above system, the water vapor is easy to condense in the dryer, and the condensed water vapor drips on the dried salt, which directly affects the quality of the product and the drying effect. At the same time, it is easy to damage the equipment during use. The cost is high, which is not conducive to the improvement of production efficiency, and the dust removal effect is irrational

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