Preheating method for mother liquor in re-consolidation boiling section

A technology for cooking material and mother liquor, applied in the direction of organic chemistry, etc., can solve the problems of restricting production capacity, large fluctuation of heating steam pressure, and long time for re-cooking material, so as to increase production and processing capacity, reduce the frequency of mechanical seal damage, The effect of reducing runtime

Inactive Publication Date: 2020-12-22
ANHUI JINGHE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that when the production of acesulfame potassium is large, the pressure of the heating steam fluctuates greatly, and the time for heavy cooking is long, which restricts the production capacity, and provides a method for preheating the mother liquor in the heavy cooking section.

Method used

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  • Preheating method for mother liquor in re-consolidation boiling section
  • Preheating method for mother liquor in re-consolidation boiling section

Examples

Experimental program
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Effect test

Embodiment 1

[0019] (1) Recover the high-temperature steam condensate (3m³, 90°C) of the fluidized bed to the high-temperature condensate tank, use the circulation pump 1 to pump the liquid in the high-temperature condensate tank into the plate heat exchanger, and pass the circulation pump 2 to pump the heavy The heavy solidification mother liquor (3m³, 15°C) in the solidification mother liquor tank is put into the plate heat exchanger, and the heavy solidification mother liquor is preheated to 85°C in the plate heat exchanger (it takes 0.5h), and the heavy solidification mother liquor after heat exchange Beat back to the heavy knot mother liquor tank for standby;

[0020] (2) Pour 3200kg of raw sugar and 3m³ preheated re-condensation mother liquor into the re-consolidation cooking kettle, turn on the re-consolidation circulation pump and steam (steam pressure 1.5kg), and carry out the re-consolidation cooking operation. After 2.2 hours, the temperature of the re-condensed cooking material...

Embodiment 2

[0022] (1) Recover the high-temperature steam condensate (3m³, 95°C) of the fluidized bed to the high-temperature condensate tank, use the circulation pump 1 to pump the liquid in the high-temperature condensate tank into the plate heat exchanger, and pass the circulation pump 2 to pump the heavy The heavy solidification mother liquor (3.2m³, 15°C) in the solidification mother liquor tank is poured into the plate heat exchanger, and the heavy solidification mother liquor is preheated to 85°C in the plate heat exchanger (it takes 0.6 h), and the heavy solidification mother liquor after heat exchange The mother liquor is put back into the heavy knot mother liquor tank for standby;

[0023] (2) Pour 3500kg of raw sugar and 3.2m³ preheated re-condensation mother liquor into the re-consolidation cooking kettle, turn on the re-consolidation circulation pump and steam (steam pressure 1.5kg), and carry out the re-consolidation cooking operation. After 2.5 hours of feeding, the tempera...

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Abstract

The invention relates to a method for preheating a mother liquor in a re-consolidation boiling section. The method comprises a re-consolidation mother liquor tank, a re-consolidation boiling kettle and a coarse consolidation bin, and is characterized in that a plate type heat exchanger is additionally arranged in front of the re-consolidation mother liquor tank, and the mother liquor in the re-consolidation mother liquor tank enters the re-consolidation boiling kettle after being subjected to heat exchange by high-temperature condensate of a fluidized bed in a plate type fluidized bed. The method comprises the following steps: (1) preheating a re-consolidation mother liquor to 80-85 DEG C by using a fluidized bed high-temperature condensate through a plate type heat exchanger; (2) adding coarse consolidation sugar and the preheated re-consolidation mother liquor into a re-consolidation boiling kettle, and controlling the mass ratio of the coarse consolidation sugar to the consolidationmother liquor to be 1-1.3:1; and (3) heating the materials in the re-consolidation boiling kettle to 90-95 DEG C, and then pumping the material into the next working section. The method has the advantages that the re-consolidation mother liquor is preheated by utilizing the waste heat of the idle condensate, so that a large amount of power consumption and steam are saved; the operation time of the re-consolidation circulating pump is shortened to 2-2.5 h, so that the mechanical seal damage frequency is reduced; and the production and processing capacity of the re-consolidation process is improved, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of acesulfame-K production, and relates to a method for preheating mother liquor in a heavy kneading and cooking section. Background technique [0002] Acesulfame K (AK sugar) is a food additive that can increase the sweetness of food, has a good taste, has no calories, and is not metabolized or absorbed in the human body. It is an ideal sweetener for middle-aged and elderly people, obese patients, and diabetic patients. [0003] At present, in the production process of acesulfame-K, during the operation of heavy caking and cooking, the crude sugar (coarse caking section) and heavy caking mother liquor (crystallized mother liquor after heavy caking and cooking) are put into the kettle according to the solid-liquid ratio, and then the steam is turned on. The material in the kettle is heated through the inner coil of the kettle. When the steam pressure is maintained at 1.5-2.0Kg, the cooking time of a single k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D291/06
CPCC07D291/06
Inventor 周睿涂志远李广馨
Owner ANHUI JINGHE IND
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