Production technology of edible salt

Abstract

The invention discloses a production technology of edible salt, and relates to the processing technology of the table salt. The processing technology mainly comprises six steps of taking salt pulp, performing crystal cultivation, performing washing, performing centrifugal separation, performing crushing and performing packaging, wherein the steps of taking the salt pulp, performing crystal cultivation and washing are conventional steps existing in the prior art; in the steps of performing centrifugal separation and performing drying, the water ratio of table salt crystal grains needs to be reduced to 0.5% or below; and in the crushing step, the edible salt crystal grains are crushed into fine particles of which the diameter is 2[mu]m through air compression pressure crushing equipment. The particle size of the table salt is reduced, the surface area can be enlarged, the contact area of the table salt and dishes can be enlarged, and the dishes can be quickly tasteful through the table salt, so that the intake of the table salt is reduced. The table salt is packaged in a manner that the weight of each bag of the table salt is 4-6g, and the weight of each bag of the table salt is the intake of table salt of each person one day, so that control on the intake of the table salt every is facilitated; and in addition, each bag of the table salt can be run out at a time, so that the situation that the table salt is agglomerated due to being in contact with air can be avoided.

Description

technical field [0001] The invention relates to a salt processing technology, in particular to a production technology of edible salt. Background technique [0002] Edible salt is an indispensable edible product in people's daily life. Salt agglomeration is the main problem that needs to be solved in the current salt production process. The agglomeration of sodium chloride crystals is its inherent characteristic. Salt is easy to absorb moisture when the relative humidity is above 75%, and will release moisture when the relative humidity is lower than 75%. This phenomenon repeats continuously, and agglomeration occurs when it reaches a certain level . At the same time, most enterprises basically use the external heating evaporation salt production process when producing refined salt. Because the external heating evaporation uses a forced circulation heating device, and because the evaporation chamber and the heating chamber are separated, the circulating material liquid ado...

AI Technical Summary

Problems solved by technology

At the same time, most enterprises basically use the external heating evaporation salt production process when producing refined salt. Because the external heating evaporation uses a forced circulation heating device, and because the evaporation chamber and the heating chamber are separated, the circulating material liquid adopts an axial flow pump. Forced circulation evaporation increases the chance of crystal collision, so the salt crystals are irregular and the particle size is uneven, resulting in a state of dense accumulation of salt layers, which also easily promotes the agglomeration of salt particles during storage

At present, the main means to solve the caking of salt is to add anti-caking agent to the salt. According to the national salt standard GB5461-2000 "Edible Salt", potassium ferrocyanide is currently the only anti-caking agent that can be added to the salt , but NY / T392 "Guidelines for the Use of Green Food Additives" clearly stipulates that potassium ferrocyanide is not allowed to be added in green food

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