Sugar juice settle low-ash low-temperature carbonating method

A sugar juice filling technology, applied in the purification of sugar juice, sucrose production, sugar production, etc., can solve problems such as pollution, achieve the effects of reducing sugar loss, good economic benefits, and reducing emissions

Inactive Publication Date: 2013-08-07
彭思云 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to develop a brand-new sugar juice clarification process and its supporting equipment, reduce consumption, improve product quality and output, can be use

Method used

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  • Sugar juice settle low-ash low-temperature carbonating method

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Comparison scheme
Effect test

Embodiment 1

[0020] Add a small amount of lime milk to the mixed juice transported from the pressing workshop to pre-lime to pH 7.2. After one heating at 50°C, the mixed juice flows into the tank quickly and efficiently in reverse, and the main ash, that is, a large amount of lime milk, is added to fill the juice effectively. Calcium oxide content reaches 0.2% of the total calcium content of cane juice to sugarcane ratio (or 0.2% to sugarcane juice ratio); at the same time, carbon dioxide is added. In addition, after the vacuum suction filter comes out of the filtered juice and refluxes, it adds lime (lime milk) to pH 8.0 through a three-point liming device, and then enters the fast and efficient reverse filling tank, and fills it together with the above mixed juice until the final pH is 7.8. . The temperature of the full-filled juice obtained after full filling reaches 60°C, after foam breaking and foam making, 1 ppm of flocculant polyacrylamide is added, and it enters the high-efficiency...

Embodiment 2

[0024] Add a small amount of lime milk to the mixed juice transported from the pressing workshop to pre-lime to pH 7.4. After one heating at 55°C, the mixed juice will flow into the tank quickly and efficiently in reverse, and add the main ash, that is, a large amount of lime milk, to effectively oxidize the full juice. The calcium content reaches 0.28% of the total calcium content of the cane juice to the cane ratio (or 0.28% to the ratio of the cane juice); at the same time, carbon dioxide is added. After the vacuum suction filter comes out, the filtered juice is refluxed and ashed to pH 8.1 through a three-point liming device, and then enters the fast and efficient reverse filling tank, and is filled together with the above mixed juice until the final pH is 8.0. The temperature of the full-filled juice obtained after full filling reaches 75°C. After breaking the foam and making foam, 2.5ppm of flocculant polyacrylamide is added, and it enters the high-efficiency multi-stage ...

Embodiment 3

[0028]Add a small amount of lime milk to the mixed juice transported from the pressing workshop to pre-lime to pH 7.6. After a heating temperature of 60°C, the mixed juice will flow into the tank quickly and efficiently, and add a large amount of lime milk, which is the main ash, to effectively oxidize the full juice. The calcium content reaches 0.35% of the total calcium content of the cane juice to the ratio of sugarcane (or 0.35% to the ratio of sugarcane juice); at the same time, carbon dioxide is added. After the vacuum suction filter comes out, the filtered juice is refluxed and ashed to pH 8.2 through a three-point liming device, and then enters the fast and efficient reverse filling tank, and is filled together with the above mixed juice until the final pH value is 8.2. The temperature of the full-filled juice obtained after full-filling reaches 85°C, after foam breaking and foam-making, 3 ppm of flocculant is added, and it enters the high-efficiency multi-stage separat...

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Abstract

The invention provides a novel sugar juice settle low-ash low-temperature carbonating method. The method comprises the following steps of adding lime milk into squeezed mixed juice to be prelimed to the pH value of 7.2 to7.6, liming the mixture to the pH value of 8 to p9 in a three-point form after primarily heating the mixture to the temperature of 50 to 60 DEG C, adding effective calcium oxide to reach the sugarcane ratio of 0.2 to 0.35 percent of full calcium content, carrying out the carbonation in a fast high-efficiency reverse carbonating tank through the carbon dioxide to reach an end-point pH value of 7.8 to 8.2; heating to the temperature of 60 to 85 DEG C, adding the flocculating agent after breaking bubbles and making the foam, placing the juice into a high-efficiency multilevel separation juice settler to be settled and separated, centrifugally separating the separated low-carbon juice, ensuring the separated juice to enter a low-carbon juice tank, ensuring the floating slag and the slime to enter a mud juice tank to be filtered through a vacuum adsorption filter, and ensuring the obtained filter juice to flow back to a three-point liming device to be limed to the pH value of 8 to 9; and ensuring the low-carbon clear juice to enter an original sulphurous acid method settling step after adding 200 to 300ppm phosphoric acid.

Description

Technical field [0001] The present invention involves a full way to make a sugar plant -making process, especially a sugar juice to clarify the low -carbon low -gray and low temperature (three low) full charge method. Background technique [0002] At present, the sugar factory's sugar manufacturing process has two types: sulfuric acid method and carbonate, which has been nearly a century.Although improved, it is still the same as early.Both methods have large disadvantages: sulfuric acid method clarifies less non -glycogen, low cleaning efficiency, high coloring value, high sulfur, high white sugar color, and more sulfur dioxide; and carbonate method should be carbonate method.Consume a lot of lime, produce a large amount of strong alkaline filtrate, and seriously pollute the environment.People have conducted many years of research on these two processes and have made some local improvements, but so far they have not fundamentally solved their existing problems.In recent years, s...

Claims

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Application Information

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IPC IPC(8): C13B20/00C13B20/06
Inventor 彭思云覃作毅李桂韦继杰翟锴高
Owner 彭思云
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