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A kind of material and method for reducing the generation of foam in the recovery process of potato cell sap

A cell liquid and potato technology, which is applied in the field of reducing foam materials during the recovery process of potato cell liquid, can solve the problems of not collecting solid materials, occupying processing operation space, and not being able to separate solids and liquids, so as to achieve no secondary pollution, The effect of reducing environmental bearing pressure and improving recycling efficiency

Inactive Publication Date: 2017-07-25
甘肃省农业科学院农产品贮藏加工研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high protein content in the potato cell fluid, the liquid flow is mixed and transported during the treatment process, and the flow rate is high, especially after entering the centrifugal equipment, it is accelerated sharply, and a large amount of foam accumulates in the equipment chamber, which is difficult to discharge in time.
With the gradual increase of the chamber pressure of the equipment, the liquid flow of the material cannot enter the equipment due to the excessive pressure of the chamber, so that continuous solid-liquid separation cannot be carried out, and solid materials cannot be collected. The centrifugal separation equipment is actually in an invalid idling state. Moreover, the foam around the equipment will accumulate more and more, occupying the processing operation space, and eventually leading to shutdown and production stoppage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The method that produces foam in reducing potato cell sap recycling treatment process of the present invention is as follows:

[0045](1) Pump the potato cell liquid into the mixing tank. When the cell liquid is being transported, the outlet of the liquid flow tube should be placed near the bottom of the mixing pool and close to the wall of the pool. The purpose is to reduce the re-acceleration of the liquid flow by gravity and avoid more collisions with the pumped cell liquid. Foam, while reducing the effective processing space of the mixing tank, it also increases the workload of defoaming;

[0046] (2) Send the potato residue into the above mixing tank and mix with the cell liquid for 3-20 minutes, the amount of potato residue is 5kg of potato residue per cubic meter of cell liquid;

[0047] (3) Pump the evenly mixed mixture into the centrifugal equipment for solid-liquid separation, collect solid materials, and become feed or feed raw materials; the centrifugal equ...

Embodiment 2

[0051] The difference between this embodiment and embodiment 1 is:

[0052] In step (2), the amount of potato residue is 20 kg of potato residue per cubic meter of cell fluid;

[0053] In step (3), the speed of the main machine is 1500r / min, and the speed of the auxiliary machine is 500r / min.

[0054] All the other parts are the same as in Example 1.

[0055] Applying the method of this example, the amount of foam in the foam mixture separated by the centrifugal equipment is 6%; the solid material collected by the centrifugal equipment has a dry matter content of 21%, a crude protein content of 11.5%, and a starch content of 46% (dry basis).

Embodiment 3

[0057] The difference between this embodiment and embodiment 1 is:

[0058] In step (2), the amount of potato residue used is 100 kg of potato residue per cubic meter of cell fluid.

[0059] In step (3), the speed of the main machine is 4000r / min, and the speed of the auxiliary machine is 2000r / min.

[0060] All the other parts are the same as in Example 1.

[0061] Applying the method of this example, the amount of foam in the foam mixture separated by the centrifugal equipment is 15%; the solid material collected by the centrifugal equipment has a dry matter content of 25%, a crude protein content of 14.1%, and a starch content of 62% (dry basis).

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PUM

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Abstract

The invention provides a material for reducing foam generated in the recovery process of potato cell fluid, and the material includes one or more of the following: (1) potato residue; (2) edible fungus residue; (3) cereals, beans (4) One or more of attapulgite and diatomaceous earth; (5) Food defoamer. The invention also provides a method for reducing foam generated during the recovery process of potato cell liquid. The method of the invention not only greatly reduces the foam produced in the recovery process, realizes the solid-liquid separation of the cell liquid by the centrifugal equipment, but also can operate continuously, and the recovery efficiency is greatly improved. The recovered material has high crude protein and starch content, which is equivalent to the main nutrients contained in corn after drying, and is suitable for use as animal feed or feed raw materials.

Description

technical field [0001] The invention relates to a material and a method for reducing foam generated in the recovery process of potato cell liquid. Background technique [0002] A large amount of cell liquid (also known as process water, protein liquid, protein water or wastewater) produced in potato starch processing comes from the starch concentration process in the potato starch plant. When the pipeline enters the sewage treatment workshop, the foam layer accounts for 35% (90min) to 50% (5min) of the total volume. The foam layer is relatively stable and cannot be reduced or eliminated by conventional methods. If the foam in the cell fluid cannot be eliminated or reduced, it will cause the subsequent processing unit to fail to operate normally. The cell fluid contains a large amount of organic matter such as protein, starch polysaccharide, etc. The content of organic matter (about 3%, in the dry basis, only crude protein and starch total nearly 70%) and the COD value is to...

Claims

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Application Information

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IPC IPC(8): A23K10/35
Inventor 庞中存黄玉龙周世勇苏璠李明泽陈小风
Owner 甘肃省农业科学院农产品贮藏加工研究所
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