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Vacuum salt producing technique of salt-field saturated bittern direct ingress into evaporation tank

A technology of vacuum salt production and evaporation tank, which can be used in sustainable manufacturing/processing, chemical industry, alkali metal chloride, etc., and can solve the problems of increasing raw salt consumption, high cost, and affecting people's lives.

Inactive Publication Date: 2007-09-26
ENG TECH INST CO LTD OF CNSIC +1
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  • Summary
  • Abstract
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Problems solved by technology

[0002] Some refined salt production enterprises in Haiyan District adopt the method of reproducing refined salt by dissolving raw salt into saturated brine, which not only increases the consumption of raw salt, but also reduces the use efficiency of the salt field area. The investment is large, the cost is high, and the output is low. The loss of the enterprise directly affects the lives of the people

Method used

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  • Vacuum salt producing technique of salt-field saturated bittern direct ingress into evaporation tank

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Embodiment Construction

[0023] The inventor has designed a production line for a certain enterprise with an annual output of 150,000 tons of salt field saturated brine directly entering the evaporation tank for vacuum evaporation to produce refined salt. The description is as follows in conjunction with the accompanying drawings:

[0024] The production line consists of brine preparation, vacuum evaporation, salt washing, centrifugal dehydration, drying, iodine addition, packaging and other processes: brine preparation:

[0025] The brine is evaporated by the sun in the beach field until it is saturated (not lower than 24°Be', and the ratio of sodium to magnesium should not be lower than 5), and is stored in a saturated brine storage. After the brine settles and clarifies for 24 hours, it is poured into the concentration tank (There is raw salt in the thickening pool) to increase the concentration of brine, and then put it into the clear brine barrel.

[0026] Vacuum evaporation:

[0027] The satura...

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Abstract

The invention discloses a vacuum preparing salt craft through leading salt-field saturated brine into evaporation tank in the sea-salt area, which comprises the following steps: pumping saturated brine into calorifier through brine pump; preheating; leading into evaporation tank; leading the vapor into heating room through separate cylinder; setting steam pressure at 0.3-0.4MPa; adopting green steam to heat in the heating room of effect evaporation tank; making the indirect steam through evaporating feed liquid as heat source of the next effect evaporation tank; making the indirect steam of II effect, III effect evaporation tank as the same; leading indirect steam of IV effect evaporation tank into mixing condenser; making salt grout generated by evaporating feed liquid through third washing; drying anticentripetally; drying; packing; getting product.

Description

technical field [0001] The invention relates to a vacuum salt production process in a sea salt production area using saturated brine from a salt field directly into an evaporation tank. Background technique [0002] Some refined salt production enterprises in Haiyan District adopt the method of reproducing refined salt by dissolving raw salt into saturated brine, which not only increases the consumption of raw salt, but also reduces the use efficiency of the salt field area. The investment is large, the cost is high, and the output is low. The loss of the enterprise directly affects the lives of the people. Contents of the invention [0003] In order to overcome the disadvantages of the existing re-salt production technology, the inventor has designed a method for directly using saturated brine from salt fields to produce refined salt. [0004] The vacuum salt making process of salt field saturated brine dire...

Claims

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Application Information

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IPC IPC(8): C01D3/06
CPCY02P20/10
Inventor 刘长岩戈金阳靳志玲刘立平
Owner ENG TECH INST CO LTD OF CNSIC
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