Drum type dehydration device for lotus root starch slurry and dehydration method thereof

Abstract

The invention discloses a drum type dehydration device for lotus root starch slurry and a dehydration method thereof. The device comprises a bracket, a containing groove fixedly connected to the middle of the bracket, a drum arranged above the containing groove and driven by a motor; and the motor is fixedly connected with a supporting board at the right side of the bracket. The device also includes a vacuum mechanism; and the vacuum mechanism comprises a vacuum pump fixedly connected on the left side of the bracket, a suction pipe and an exhaust pipe arranged on the top of the vacuum pump. The suction pipe is connected with a hollow rotating shaft arranged on the left side of the drum; the hollow rotating shaft is inserted into the drum and communicated with the internal space of the drum; the left side of the bottom of the containing groove is fixedly connected with a feed chute; the bottom of the feed chute is connected with a feed pipe; the bottom of the containing groove is connected with a discharge pipe; and the outer wall of the drum is provided with a layer of stainless steel net. The device ensures vacuum state in the drum; the outer wall of the drum is provided with a layer of stainless steel net, and water in the slurry is sucked into the drum and discharged, so as to quickly separate the lotus root starch and carry out a the next step of processing; and slurry can be supplemented continuously to ensure continuity of production.

Description

technical field [0001] The invention relates to the field of food processing, in particular to the field of processing edible lotus root starch, in particular to a drum-type lotus root starch slurry dehydration device and a dehydration method thereof. Background technique [0002] Root powder is a traditional food, a gluten-free powder made from dried lotus root, used as a thickening agent in Chinese and Japanese cuisine. One of the steps in the processing of lotus root starch is dehydration, which is to dehydrate the ground lotus root starch slurry. The traditional dehydration method is to put the rinsed and precipitated lotus root powder in a clean cloth bag, then hang it with a rope, and drain it in about half a day (you can also put a clean cloth bag containing plant ash in it to absorb the water dry). After the water is drained, take out the lotus root powder, break it into about 500 grams of dough, let it dry for about 1 hour, then cut the dough into thin slices with ...

AI Technical Summary

Problems solved by technology

The drum of the three-legged dehydrator is in a flat state, pour the lotus root starch slurry into it, start the motor to rotate the drum at high speed, and remove the water through centrifugal force, but because the drum is in a flat state, it is easy to accumulate more lotus root starch at the bottom As the rotation progresses, the lotus root starch at the bottom gradually becomes thicker, and the water cannot pass through, resulting in a decrease in dehydration efficiency; the working principle of the scraper centrifuge is the same as that of the three-legged dehydrator, except that the drum is placed vertically and the inner wall is equipped with a scraper, which can Scrape off the accumulated lotus root starch to prevent the accumulation of too much lotus root starch so that water cannot pass through and reduce the dehydration efficiency

Moreover, the above two machines also have the following problems: the drums are of closed design, that is, the drums only perform centrifugal work to shake off the moisture in the slurry, and form a lotus root starch layer on the inner wall of the drum. After the dehydration is completed, the lotus root powder block is taken out and then added to the slurry Dehydration makes the processing process intermittent, and workers need to perform multiple steps such as shutting down the machine to take powder, pouring the slurry, and starting up for dehydration, resulting in a decrease in work efficiency, a decrease in the output of lotus root starch, and a high labor intensity for the staff; at the same time, the scraper centrifuge also There are problems such as complex structure, expensive price and difficult maintenance

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