Low temperature processing technique for sugar mill mixing liquor by sulfurous acid method
A sulfite method sugar factory, low-temperature treatment technology, applied in the direction of oxidation/reduction purification, etc., can solve the problems of reducing the filtration performance of filter cloth, achieve high clarification effect, fast precipitation speed, and reduce the precipitation area.
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[0040] First kind of technological process of the present invention is:
[0041] (1) Add 2-10 Baumé milk of lime aqueous solution to the squeezed mixed juice, mix the solution and prepare a solution with a pH value (6-12);
[0042] (2) After the above solution is prepared, a flocculant solution with a concentration of 0.01-0.2% is added therein for mixing, and the addition amount is 1-4ppm;
[0043] (3) The mixed solution is sent to the floater;
[0044] (4) The scum is discharged to the suction filter or treated with another small floater, and the clear juice is sent to the sulfur fumigation for neutralization.
[0045] In addition to the above-mentioned technical scheme, after adding 2-10 Baume degrees of lime milk aqueous solution into the squeezed mixed juice, you can also add:
[0046] (1) Phosphoric acid with a total phosphoric acid value of 50-2000ppm is prepared into a solution with a pH value (6-12) after mixing the solutions. Add a flocculant solution with a conce...
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