Kitchen waste pretreatment system and process

A kitchen waste and pretreatment technology, applied in grain processing, solid separation, transportation and packaging, etc., can solve the problems of organic matter loss, increase the failure rate of crushers, etc., and achieve less organic matter loss, good drainage effect, and high removal rate. Effect

Pending Publication Date: 2018-07-20
宜升(天津)环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since food waste contains meat pieces and large pieces of organic matter, these large pieces of organic matter cannot pass through the screen in the sorting machine, and are separated together with impurities, resulting in the loss of available organic matter
During the screen sorting process, some impurities such as plastics or chopsticks with small diameters still enter the food waste and are transported to the crusher. These impurities will increase the failure rate of the crusher.

Method used

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  • Kitchen waste pretreatment system and process
  • Kitchen waste pretreatment system and process
  • Kitchen waste pretreatment system and process

Examples

Experimental program
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Effect test

Embodiment 2

[0063] The device for draining and removing heavy impurities from food waste described in this embodiment is basically the same as that in Embodiment 1, the difference is that:

[0064] Such as Figure 6 As shown, the magnet device 5 is a magnetic plate whose upper surface is a conical surface, and the conical surface can have a larger contact area than the plane, so as to improve the magnet device 5's ability to attract metal impurities.

[0065] In order not to make metal impurities get together and adsorb, the edge of the magnet device 5 and the metal collection box 4 are arranged in a form of sliding and sealed connection. The bottom of the magnet device 5 and the bottom of the metal collection box 4 are fixedly connected by a spring 8. There can be slight up and down shaking under the collision of etc., so that the metal impurities are evenly contacted with the magnet device 5, and the metal impurities are avoided from being piled up and adsorbed.

[0066] The pretreatme...

Embodiment 3

[0069] The device for draining and removing heavy impurities from food waste described in this embodiment is basically the same as that in Embodiment 2, except that:

[0070] Such as Figure 7 As shown, the magnet device 5 is a magnetic plate with a wavy upper surface, and the wavy shape can increase the contact area between the magnet and the metal impurities in the kitchen waste.

[0071] The edge of the magnet device 5 is in sliding and sealing connection with the metal collection box 4 , and the bottom of the magnet device 5 and the bottom of the metal collection box 4 are fixedly connected by a spring 8 . In this arrangement, during the falling process of the food waste, the magnet device 5 can move up and down slightly in the metal collection box 4 along with the food waste falling, so as to increase the contact area between the metal impurities and the magnet device 5 , so that metal impurities will not accumulate at a certain point or part of the magnet device.

[00...

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Abstract

The invention provides a kitchen waste pretreatment system and process. The kitchen waste pretreatment system comprises a drainage and heavy impurity removing device, a crushing and slurrying device and an extrusion impurity-removing device which are sequentially arranged and communicate with each other. The drainage and heavy impurity removing device comprises a filtration sump which is located underground and provided with an opening; and an open receiving hopper is fixedly arranged in the filtration tank, and the four walls of the receiving hopper are draining filter screens. The bottom ofthe receiving hopper is provided with a metal collecting box, and the bottom of the metal collecting box is provided with a magnet device. The crushing and slurrying device comprises a plurality of grinding balls, and the extrusion impurity-removing device comprises a filter screen. According to the kitchen waste pretreatment system, organic materials can be prevented from drained in the slurryingprocess of kitchen waste, and impurities can be effectively separated from the kitchen waste; and a crushing and slurrying machine cannot be damaged by plastic or metal materials, and the stable andefficient operation of the treatment system is guaranteed.

Description

technical field [0001] The invention belongs to the field of kitchen waste treatment, and in particular relates to a kitchen waste pretreatment system and process. Background technique [0002] The main characteristics of food waste are high moisture content and impurities such as metals, wood chips, and plastics. In the food waste treatment process, inorganic metals, wood chips, plastics and other impurities have a great impact on the subsequent processing units, and they must be sorted out first to ensure the stable operation of the subsequent food waste treatment process. [0003] The main process of existing food waste pretreatment is: food waste collection and transportation, food waste is poured into the receiving hopper, and a screw conveyor is connected under the receiving hopper to transport the food waste to the sorting machine. There is a sieve in the sorting machine. According to the different diameters of the materials, the food waste is the undersize, and impu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00B03C1/30B02C23/14B02C17/10
CPCB02C17/10B02C23/14B03C1/30B09B3/00B09B5/00B02C2201/06B09B2101/02
Inventor 杨蛟云聂绍山胡春萍熊欢欢沈旺
Owner 宜升(天津)环境技术有限公司
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