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Method for clarifying sugar liquid using quick lime

A technology of quicklime and sugar solution, applied in the fields of sugar making and sugar solution clarification, can solve the problems of low utilization rate of lime, poor quality of sugar solution, environmental pollution, etc. Effect

Active Publication Date: 2006-11-08
黄永春 +3
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0011] The technical problem to be solved by the present invention is: the above-mentioned hazards such as the poor quality of the sugar solution caused by incomplete lime emulsification, many ash particles, and serious hysteresis reaction in the existing common quicklime used to clarify the sugar solution, and the ineffectiveness of the lime solution. Thoroughly, resulting in the problems of low lime utilization rate and serious environmental pollution, provide a kind of "one kind of quicklime for clarification" that can effectively improve the clarification effect and improve the quality of sugar juice The Sugar Solution"

Method used

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Embodiment Construction

[0040] A method for using quicklime to clarify sugar liquid, including the process of dissolving, adding milk of lime, and neutralizing. The dissolving process of the method is to mix and stir powdered quicklime with a particle size of 50-300 mesh and water to prepare 8-20Be Milk of lime, in the present embodiment, is that the particle size in powdery lime storage tank 1 is that the powdery quicklime of 50~300 meshes is sent to mixing tank 3 by frequency conversion screw conveyor 2, is added with water and stirred to make lime milk, powdery quicklime and The water mixing ratio is: 1:4, and the water temperature is: 45°C.

[0041] The method for adding milk of lime is to pump the milk of lime obtained in the mixing tank to the neutralization process of flowing smoke and add it to the sugar solution.

[0042] Described neutralization process: Consistent with the traditional method, in the sugar liquid that has added milk of lime, pass into SO again 2 Gas, Ca(OH) in milk of lime...

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Abstract

The present invention relates to sugar refining technology, and the method of clarifying sugar liquid with quick lime includes the steps of slaking, adding lime cream and neutralizing. The present invention features the slaking step of mixing 50-300 mesh quick lime powder and water at 40-70 deg.c in the weight ratio of 1 to 2-10. The present invention has fast precipitating reaction speed, high lime cream quality, high lime utilization rate, no lime slag exhaust, raised sugar liquid clarifying effect and other advantages.

Description

Technical field: [0001] The invention relates to a sugar production technology and a method for clarifying sugar liquid, in particular to a method for using quicklime to clarify sugar liquid. Background technique: [0002] At present, the methods of clarifying sugar liquid in sugar factories mainly adopt two kinds of sulfurous acid method or carbonic acid method. Their clarification mechanism is to add milk of lime to the sugar liquid, and then pass through SO 2 or CO 2 Gas, therefore, quicklime is the most commonly used fining agent in sugar factories and it produces several important chemical reactions in sugar juice. In the clarification process, lime is added to cane juice through lime milk, and SO 2 , Phosphoric acid forms calcium sulfite precipitation and calcium phosphate precipitation to remove the colloids and pigments in the sugar juice by adsorption. At present, the lime used as the sugar clarifier in the sugar liquid clarification process in the sugar factory ...

Claims

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Application Information

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IPC IPC(8): C13B20/02
Inventor 黄永春蓝胜宇张鲁宾梁逢海
Owner 黄永春
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