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Processing system for recovering oil and protein from kitchen wastes and processing method thereof

A treatment system, a technology of food waste, applied in the field of oil and protein recovery treatment system, can solve the problems of inability to achieve high-efficiency separation, production environment pollution, low oil recovery rate, etc.

Active Publication Date: 2013-01-16
SUZHOU UNITED MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many ways to recover oil, protein and starch from food waste, but all of them have certain shortcomings. Due to the complexity of their components, high-efficiency separation cannot be achieved only by sedimentation or filtration. If only If the sedimentation method is used for separation, light solids will be mixed with oil and protein, and effective separation cannot be achieved. However, for separation by filtration, only coarse solids can be removed, and fine solids will be mixed with the liquid phase. Recycling and separation cause more difficulties, thus causing the following problems in the process of recycling food waste, the recovery rate of oil is low, the water content of recovered protein and starch is too high or contains a lot of impurities, the labor intensity is high, and it cannot be operated in a closed manner. It is easy to cause pollution, and cannot run continuously and automatically control, etc.

Method used

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  • Processing system for recovering oil and protein from kitchen wastes and processing method thereof
  • Processing system for recovering oil and protein from kitchen wastes and processing method thereof
  • Processing system for recovering oil and protein from kitchen wastes and processing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] see figure 1 and figure 2 , as shown in the legend therein, a treatment system for recovering oil and protein from food waste, including a centrifugal filter and a settling centrifuge, the centrifugal filter includes a feeding device, a washing liquid inlet device, a pushing device, a concentrated filter device, a filtrate collecting device, a solid phase collecting device and frame 7; the feeding device includes a feeding pipe 12 and a feeding chamber 13; the feeding The pipe 12 is provided with a feeding port 11; the washing liquid inlet device includes a primary liquid inlet pipe 22, a primary liquid inlet chamber 23, a secondary liquid inlet pipe 25 and a secondary liquid inlet chamber 26; The primary liquid inlet pipe 22 and the secondary liquid inlet pipe 25 are respectively provided with a primary liquid inlet 21 and a secondary liquid inlet 24; the pushing device includes a screw feeder 31 and a motor 32 The concentrated filter device comprises a concentrated...

Embodiment 2

[0042] The rest are the same as in the first embodiment, the difference is that a differential 33 is provided between the screw conveyor 31 and the motor 32, and by changing the speed ratio of the differential 33, the extrusion zone is realized. Squeeze to dehydrate.

[0043] The beneficial effect of adopting this technical solution is that the pulverized food waste slurry is first filtered, and fine particles such as oil, protein, starch, etc. are recovered together with the filtrate, and the coarse residue and light solids that are dehydrated for the first time enter the washing area. Under the washing of the washing liquid, useful substances such as oil, protein, and starch are further recovered, and the coarse slag and light solids after washing are completed, and finally enter the secondary dehydration zone. In the secondary dehydration zone, an extrusion spiral structure is specially designed. Coarse slag and light solids are filtered by centrifugal force and also by ext...

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Abstract

The invention discloses a processing system for recovering oil and protein from kitchen wastes and a processing method thereof. The system comprises a centrifugal filter and a sedimentation centrifuge, wherein the sedimentation centrifuge is arranged at the rear end of the centrifugal filter, the centrifugal filter comprises a feeding unit, a washing liquid feeding unit, a material pushing unit, a concentration filter, a filtrate gathering unit, and a solid phase gathering unit. According to the invention, the system can further separate the coarsely-sieved kitchen wastes, and recover the oil, protein and starch in the kitchen wastes.

Description

technical field [0001] The invention relates to a treatment system for recovering oil and protein from kitchen waste, in particular to a treatment system and a treatment method for recovering oil and protein from kitchen waste. Background technique [0002] A lot of food waste is formed during the catering process. Although the food waste has been pretreated by coarse screening, the composition of the food waste is complex. The main components include water, soluble substances (main components: protein dissolved in water), grease, Vegetable or fruit fiber, starch, minced meat, etc.; there are also a small amount of impurities: wood or bamboo scraps (blocks), shredded paper scraps, plastic scraps and other sundries. According to its physical properties, it can be divided into: oil / protein-containing water / light solids / heavy solids, etc. There are many ways to recover oil, protein and starch from food waste, but all of them have certain shortcomings. Due to the complexity of ...

Claims

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Application Information

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IPC IPC(8): C11B13/00C07K1/14B09B3/00
CPCY02W30/74
Inventor 任剑敏
Owner SUZHOU UNITED MACHINE