Method and equipment for clarifying cane juice by combining air floatation purification and thermal floatation purification

A combined and clean technology, applied in the direction of purification using physical methods, sucrose production, sugar production, etc., can solve the problems of single application of float cleaner, cleaning of rare mixed juice, single cleaning process, etc., and achieve good treatment effect , pH value drop is small, the effect of expanding the scope of application

Active Publication Date: 2012-09-19
HUALAN DESIGN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] "Low Temperature Phosphorus Float - A New Process for Sugar Production in the 21st Century" (Huo Hanzhen, "Guangxi Light Industry", Issue 1, 2001, 21-26) , mentioned the cylindrical floater and the parallel floater. The main disadvantage of the cylindrical floater is that the scum floats upwards and the clear liquid flows downwards. The two move in reverse, and there is obvious interference, which greatly reduces the Separation speed; and the advection float cleaner effectively solves this problem, eliminates this interference, greatly improves the speed and efficiency of the two-phase separation process, a

Method used

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  • Method and equipment for clarifying cane juice by combining air floatation purification and thermal floatation purification
  • Method and equipment for clarifying cane juice by combining air floatation purification and thermal floatation purification
  • Method and equipment for clarifying cane juice by combining air floatation purification and thermal floatation purification

Examples

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Embodiment 1

[0054] A method for clarification of sugarcane juice that combines air flotation cleaning and hot flotation cleaning. First, the mixed juice is preheated to 45°C, and then transported to the reactor, and lime is added to adjust the pH value to 5.6. The amount of lime added is 0.02% of the weight; if the pH is low, the amount of lime can be appropriately increased; then use the bubble maker to fill in fine and uniform bubbles, then add 1ppm polyacrylamide in the weight of the mixed juice and mix well, then enter the thermal tube type float cleaner, Carry out air flotation cleaning at 50°C to separate solids with light specific gravity and condensed matter with low melting temperature, such as sugarcane wax, sugarcane fat, sugarcane bran and starch, etc. After air flotation cleaning, a clear juice is obtained, and the primary clear juice is extracted Add 0.02% lime and 1ppm polyacrylamide to the blender at the same time, and then send it to the thermal tube type floater through t...

Embodiment 2

[0056] A method for clarification of sugarcane juice that combines air flotation cleaning and hot flotation cleaning. First, the mixed juice is preheated to 50°C, then transported to the reactor, and lime is added to adjust the pH value to 6.0. The amount of lime added is the mixed juice 0.03% by weight; if the pH is low, the amount of lime can be appropriately increased; then use a bubble maker to fill in fine and uniform bubbles, then add 1ppm polyacrylamide and mix well, then enter the thermal tube type float cleaner, and carry out at 60°C Air flotation cleans, separates solids with lighter specific gravity and condensed matter with low melting temperature, such as cane wax, sugar cane fat, sugarcane bran and starch, etc. After air flotation and cleansing, a clear juice is obtained, and the clear juice is pumped out to the mixer. Add 0.05% lime and 1ppm polyacrylamide to the mixed juice at the same time, and then send it to the thermal tube type float cleaner through the cir...

Embodiment 3

[0058] A method for clarification of sugarcane juice that combines air flotation cleaning and hot flotation cleaning. First, the mixed juice is preheated to 55°C, then transported to the reactor, and lime is added to adjust the pH value to 6.6. The amount of lime added is the mixed juice 0.05% of the weight; then use a bubble maker to fill in fine and uniform bubbles, then add 2ppm polyacrylamide and mix well, then enter the thermal tube type float cleaner, carry out air flotation cleaning at 70°C, and separate solids with lighter specific gravity Condensate and low melting temperature condensate, such as cane wax, sugarcane fat, cane bran and starch, etc., after air flotation and cleaning, a clear juice is obtained, and the clear juice is pumped out to the agitator, and 50ppm phosphoric acid and 2ppm polyacrylamide are passed through at the same time. The circulation pump is then sent to the thermal tube type float cleaner for hot float cleaning at 90°C to separate the seconda...

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Abstract

The invention discloses a method for clarifying cane juice by combining air floatation purification and thermal floatation purification. The method comprises the following steps of: preheating mixed juice to 45-55 DEG C, conveying into a reactor, and adding lime for adjusting the pH value to 5.6-6.6, wherein the adding amount of the lime is 0.02-0.05 percent of the weight of the mixed juice; and charging fine uniform air bubbles by using a bubble maker, adding a flocculating agent, mixing uniformly, adding into a thermal tubular purifier, performing air floatation purification in the thermal tubular purifier to obtain primary clear juice, extracting the primary clear juice into a stirrer, adding a clarifying agent and a flocculating agent simultaneously, and feeding into the thermal tubular purifier through a circulating pump for performing thermal floatation purification to separate secondary clear juice and floating slag out. An air floatation purification technology and a thermal floatation purification technology are combined, so that the clarifying efficiency and effect of the clarifying agent are increased, the quality of a white sugar product is improved simultaneously, and environmental pollution caused by lime sludge is lowered.

Description

technical field [0001] The invention relates to an improvement of a sugar cane sugar making process, in particular to a method and equipment for clarification of cane juice combining air flotation cleaning and hot flotation cleaning. Background technique [0002] With the development of social economy and the improvement of people's living standards, food safety issues are attracting unprecedented attention from the society, and the quality control and supervision of food are becoming more and more strict. As an indispensable food in people's life, white granulated sugar has higher and higher quality requirements. my country's new white sugar standard GB317-2006 has been officially promulgated and implemented, and the quality requirements for white sugar have been greatly improved, mainly in terms of color value and sulfur dioxide indicators. In the face of the implementation of the new standard, some factories are not well prepared, and the product quality cannot keep up w...

Claims

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Application Information

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IPC IPC(8): C13B20/00C13B20/02C13B20/16
Inventor 陈用武
Owner HUALAN DESIGN GRP CO LTD
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