Physical method and equipment producing skinned walnut kernel

A physical method, walnut kernel technology, applied in food science, shelling, pod removal, etc., can solve the problems of wasting resources, affecting product quality, and low peeling rate, and achieve the effect of no loss of nutritional value and nutritional components

Inactive Publication Date: 2016-12-14
河北乾罡生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There is a huge market demand for walnut kernels to remove underwear. However, my country's processing technology has been backward for a long time. Using sodium oxychloride and hydrochloric acid to remove underwear not only affects product quality, but also damages the environment, and there are many problems such as heavy metal residues. It should be pointed out It is walnut kernel underwear is a kind of traditional Chinese medicine. The previous technology made it wasted in vain, which destroyed the environment and wasted resources.
[0003] A Chinese patent with application number 201310192711.9 discloses a secondary peeling system for coating walnut kernels. Through drying, air cooling, brush peeling, and stick grinding, the walnut kernels are cracked into granules, so as to realize the peeling of walnut kernels. The removal of kernel underwear, but this method has a low removal rate of underwear. During the process of grinding, the underwear will be squeezed and embedded in the walnut kernel, making it impossible to remove the underwear
[0004] Chinese patent CN 102763887 disclos

Method used

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  • Physical method and equipment producing skinned walnut kernel
  • Physical method and equipment producing skinned walnut kernel
  • Physical method and equipment producing skinned walnut kernel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The well-developed walnut kernels, which have a harvest period of no more than one year, are put into the first-stage drum oven for drying, and the hot air with a temperature of 90°C is introduced, and the rotating speed of the drum is controlled at 10r / min. After 15 minutes, it will be rotated and dried. Make walnut kernels undergo physical changes, create a small space between pure walnut kernels and underwear, and the underwear will become brittle. Due to the rotation, the walnut kernels will rub against each other, causing some of the dry and brittle walnut kernel underwear to fall off, and the walnut kernel underwear can fall up to 25%-40%, in an environment where the temperature is not lower than 50°C, use hot air to separate the underwear from the walnut kernels with part of the underwear to obtain the walnut kernels after preliminary treatment; put the walnut kernels after preliminary separation into In the second-stage drum oven, start the oven at a speed of 10r...

Embodiment 2

[0048] Put the well-developed walnut kernels, which have a harvest period of no more than one year, into a first-stage drum oven for drying, and pass in hot air at a temperature of 80°C, and control the drum speed at 20r / min. After 13 minutes, they will be rotated and dried. Make walnut kernels undergo physical changes, create a small space between pure walnut kernels and underwear, and the underwear will become brittle. Due to the rotation, the walnut kernels will rub against each other, causing some of the dry and brittle walnut kernel underwear to fall off, and the walnut kernel underwear can fall up to 25%-40%, in an environment where the temperature is not lower than 50°C, blow with hot air, separate the underwear from the walnut kernels with some underwear, and obtain the walnut kernels after preliminary treatment; put the walnut kernels after preliminary treatment into In the second-stage drum oven, start the oven at a speed of 20r / min and add saturated steam. After the ...

Embodiment 3

[0052] Put the well-developed walnut kernels, which have a harvest period of no more than one year, into a first-stage drum oven for drying, and pass hot air at a temperature of 70°C, control the drum speed at 30r / min, and rotate and dry after 12 minutes. Make walnut kernels undergo physical changes, create a small space between pure walnut kernels and underwear, and the underwear will become brittle. Due to the rotation, the walnut kernels will rub against each other, causing some of the dry and brittle walnut kernel underwear to fall off, and the walnut kernel underwear can fall up to 25%-40%, in an environment where the temperature is not lower than 50°C, blow with hot air, separate the underwear from the walnut kernels with some underwear, and obtain the walnut kernels after preliminary treatment; put the walnut kernels after preliminary treatment into Two-stage drum oven, start at 30r / min, add saturated steam, after the inner skin on the walnut kernel absorbs moisture, sto...

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Abstract

A physical method producing skinned walnut kernels belongs to the walnut skinning technical field, and comprises the following steps: A, adding walnut kernels with skins into a first level roller oven, starting the machine and flowing hot air so as to enable the walnut kernel skin to be crispy, using rolling friction to separate crispy skin from the surface of the walnut kernel, thus obtaining walnut kernel with primary treatment; B, placing walnut kernels with primary treatment into a secondary roller oven, starting the machine and flowing into saturation wet vapour under controlled speed, wetting the endothelial of the walnut kernel, stopping the machine, and standing; C, starting the machine and controlling roller speed, flowing into hot air until the skin of the walnut kernel dries, contracts and becomes crispy, and using the friction force between the walnut kernel and the roller inner wall in a roller rotary process, thus removing skin of the walnut kernel, and obtaining finely processed walnut kernel. The invention also provides equipment using same method; the method and equipment can easily remove skins without affecting the walnut.

Description

technical field [0001] The invention belongs to the technical field of walnut peeling, and relates to a method and equipment for removing underwear from walnut kernels, in particular to a physical method and equipment for producing walnut kernels for removing underwear. The present invention is a purely physical method, using the different physical properties of pure walnut kernels and walnut kernel underwear, heating with hot air within 90°C to make the underwear brittle, and a small space is generated between the two due to rolling friction, and the underwear is passed through the spring hook, turned evenly and spaced Under the action of the board and hot air, the effect of taking off underwear is achieved, and the underwear is completely collected and utilized. After taking off the underwear, the integrity of the walnut kernel is high. This process is a purely physical method without any side effects, which protects the environment and saves resources. Background techniqu...

Claims

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Application Information

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IPC IPC(8): A23N5/00
CPCA23N5/002
Inventor 李峥王亚洲
Owner 河北乾罡生物科技有限公司
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