A fresh mushroom irradiation preservation device

Abstract

The utility model discloses a kind of fresh mushroom irradiation fresh-keeping devices, including shielding cover, electron beam generating assembly and hang installation conveying component;The electron beam generating assembly is placed in shielding cover, including two groups of electron accelerator and scanning box of opposite arrangement, electron accelerator output end connects scanning box, scanning box is equipped with irradiation window;The hang installation conveying component includes driving mechanism, transmission chain and suspension unit, driving mechanism drives transmission chain by sprocket;The suspension unit equidistance is installed on transmission chain, and suspension unit includes several long row clamps, and every two long row clamps is a pair.In shielding cover, two groups of electron accelerator front and rear staggered distribution electron accelerator front and rear staggered distribution makes two groups of electron beam not directly cross in space, reduce the energy loss and stray radiation generated by electron beam mutual collision, improve the utilization efficiency of electron beam, reduce the pressure of shielding protection.

Description

Technical Field

[0001] This utility model belongs to the field of shiitake mushroom preservation technology, and specifically relates to an irradiation preservation device for fresh shiitake mushrooms. Background Technology

[0002] Fresh shiitake mushrooms are rich in protein, polysaccharides, and vitamins, making them a popular edible fungus. However, due to their high water content and strong respiration rate, they are susceptible to microbial contamination and spoilage after harvesting. Their shelf life at room temperature is typically no more than 3-5 days, severely impacting their commercial value. Currently, the main preservation technologies for fresh shiitake mushrooms include refrigeration, modified atmosphere packaging, and chemical preservation. Refrigeration is energy-intensive and has a limited shelf life; modified atmosphere packaging equipment is complex and costly; and chemical preservation can easily lead to pesticide residues, posing a health risk.

[0003] Electron beam irradiation preservation technology, as a physical preservation method, kills microorganisms and inhibits enzyme activity through the ionizing radiation of electron beams. It has the advantages of being residue-free, highly efficient, and easy to industrialize. However, existing electron beam irradiation devices are mostly designed for general agricultural products, and have problems such as uneven irradiation, low dosage control precision, and high damage rate to fresh shiitake mushrooms, making it difficult to meet the special preservation needs of fresh shiitake mushrooms. Utility Model Content

[0004] To address the aforementioned problems, this invention provides an irradiation preservation device for fresh shiitake mushrooms, which can uniformly irradiate fresh shiitake mushrooms and extend their shelf life.

[0005] Therefore, the technical solution of this utility model is: a fresh shiitake mushroom irradiation preservation device, including a shielding cover, an electron beam generating component, and a hanging conveying component; the electron beam generating component is placed inside the shielding cover and includes two sets of opposing electron accelerators and a scanning box, the output end of the electron accelerators is connected to the scanning box, and the scanning box is provided with an irradiation window; the hanging conveying component includes a drive mechanism, a transmission chain, and a suspension unit, the drive mechanism drives the transmission chain through a sprocket; the suspension unit is equidistantly installed on the transmission chain, and the suspension unit includes several long clamps, with each pair of long clamps forming a pair.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the two sets of electron accelerators are staggered in the transport direction, with a staggered distance of 150~250mm; and the irradiation window of the left scanning box and the irradiation window of the right scanning box form staggered irradiation areas in the transport direction.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the long clamp includes symmetrically arranged clamping arms, the clamping arms are fitted on the rotating shaft, and the rotating shaft is provided with a torque spring. The opposing sides of the bottom of the clamping arms are clamping parts, and the clamping parts are provided with anti-slip silicone pads.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the shielding cover is made of lead-steel composite plate with a thickness of 8~12mm, and the inner side is covered with a lead rubber protective layer.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: both the inlet and outlet ends of the shielding cover are equipped with double-layer shielding door assemblies, which include a main shielding door and an auxiliary shielding door, which open and close alternately; both the main shielding door and the auxiliary shielding door are made of lead-steel composite plates, with the main shielding door having a thickness of 8~12mm and the auxiliary shielding door having a thickness of 5~8mm.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: both the main shielding door and the auxiliary shielding door are provided with notches for the transmission chain to pass through, and shielding brushes are installed at the notches.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By setting up two sets of staggered electron accelerators inside the shield, the two sets of electron beams do not directly cross each other in space, which reduces energy loss and stray radiation caused by collisions between electron beams, improves the utilization efficiency of electron beams, and reduces the pressure of shielding protection.

[0013] Using long clamps to hold the fresh shiitake mushrooms on both sides of the packaging bag, the fresh shiitake mushrooms are suspended and transported, so that the front and back, edges and gaps of the fresh shiitake mushrooms can be evenly covered by electron beams, thereby extending the shelf life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0016] Figure 3 This is a top view of the internal structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the long row clamp of this utility model;

[0018] Figure 5 This is another structural schematic diagram of the long row clamp of this utility model.

[0019] The following are labeled in the diagram: Shielding cover 1, main shielding door 11, auxiliary shielding door 12, shielding brush 13, electron accelerator 2, scanning box 21, right electron accelerator 22, left electron accelerator 23, transmission chain 3, long clamp 4, suspension chain 5, telescopic sleeve 6, packaging bag 7. Detailed Implementation

[0020] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0022] See the attached diagram. The fresh shiitake mushroom irradiation preservation device described in this embodiment includes a shielding cover 1, an electron beam generating assembly, and a hanging conveyor assembly. The shielding cover 1 is made of lead-steel composite plate with a thickness of 8-12 mm, and its inner side is covered with a lead rubber protective layer. The shielding cover 1 has inlets and outlets on both sides. Both the inlet and outlet ends are equipped with double-layer shielding door assemblies, which include a main shielding door 11 and an auxiliary shielding door 12. When the main shielding door 11 is open, the auxiliary shielding door 12 is closed. When the item moves to the waiting area between them, the main shielding door 11 closes, the auxiliary shielding door 12 opens, and the item moves into the irradiation area, effectively preventing radiation leakage. The opening and closing of the main shielding door 11 and the auxiliary shielding door 12 is a conventional technology and will not be described further.

[0023] Both the main shielding door 11 and the auxiliary shielding door 12 are made of lead-steel composite plate. The thickness of the main shielding door 11 is 8-12mm, the same as the thickness of the shielding cover 1, while the thickness of the auxiliary shielding door 12 is 5-8mm. Both the main shielding door 11 and the auxiliary shielding door 12 have notches for the transmission chain 3 to pass through, and shielding brushes 13 are installed at these notches. The bristles of the shielding brushes 13 are made of metal wire or other materials with shielding properties. When the transmission chain 3 passes through, the bristles can closely adhere to the surface of the transmission chain 3, filling gaps and reducing radiation leakage. Simultaneously, the resistance to the operation of the transmission chain 3 is small, and it does not affect its normal transmission.

[0024] The electron beam generating assembly is housed within a shielding cover 1 and includes two sets of opposing electron accelerators 2 and a scanning box 21. The output ends of the electron accelerators 2 are connected to the scanning box 21, which has an irradiation window. The two sets of electron accelerators 2 are staggered in the transport direction by a distance of 150-250 mm. The irradiation window of the right scanning box and the irradiation window of the left scanning box form staggered irradiation areas in the transport direction. The right electron accelerator 22 is positioned ahead of the left electron accelerator 23 in the transport direction. The central axes of the two sets of electron accelerators 2 are symmetrical in a plane perpendicular to the transport direction.

[0025] The hanging conveying assembly includes a drive mechanism, a transmission chain 3, and a suspension unit. The drive mechanism is a motor, which drives the transmission chain 3 via a sprocket; this is existing technology and will not be described further. The suspension unit is equidistantly mounted on the transmission chain 3. The suspension unit includes several long clamps 4 and a suspension chain 5. The long clamps 4 are hung on the transmission chain 3 via the suspension chain 5; every two long clamps 4 form a pair. Each long clamp 4 includes symmetrically arranged clamping arms, which are fitted onto a rotating shaft. The rotating shaft is equipped with a torque spring. The opposing sides of the bottom of the clamping arms are clamping parts, which are equipped with anti-slip silicone pads to prevent the packaging bags from falling off. The structure of the long clamps is existing mature technology and will not be described further.

[0026] To prevent the suspension chain 5 from swaying too much, a telescopic sleeve 6 can be fitted on the outside of the suspension chain 5.

[0027] In use, fresh shiitake mushrooms are placed in packaging bags 7, and the two sides of the packaging bags 7 are clamped on long clamps 4, thereby suspending the fresh shiitake mushrooms on the transmission chain 3. The transmission chain 3 carries the fresh shiitake mushrooms into the shielding cover 1, and they pass through the main shielding door 11 and the auxiliary shielding door 12 at the inlet end in sequence, and enter the irradiation area. First, the right side of the packaging bag is irradiated by the irradiation window of the right scanning box, and then the left side of the packaging bag is irradiated by the irradiation window of the left scanning box. After irradiation, the mushrooms are sent out from the auxiliary shielding door 12 and the main shielding door 11 at the outlet end in sequence.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A device for irradiating and preserving fresh shiitake mushrooms, characterized in that: The system includes a shielding cover, an electron beam generating assembly, and a mounting and conveying assembly. The electron beam generating assembly is housed within the shielding cover and includes two sets of opposing electron accelerators and a scanning box. The output end of the electron accelerators is connected to the scanning box, and the scanning box has an irradiation window. The mounting and conveying assembly includes a drive mechanism, a transmission chain, and a suspension unit. The drive mechanism drives the transmission chain via a sprocket. The suspension unit is equidistantly mounted on the transmission chain and includes several long clamps, with each pair of long clamps forming a pair.

2. The irradiation device for preserving fresh mushroom according to claim 1, wherein: The two sets of electron accelerators are staggered in the transport direction, with a staggered distance of 150~250mm; and the irradiation windows of the left scanning box and the right scanning box form staggered irradiation areas in the transport direction.

3. The irradiation preservation device for fresh mushroom according to claim 1, wherein: The long clamp includes symmetrically arranged clamping arms, which are fitted onto a rotating shaft. The rotating shaft is equipped with a torque spring. The opposing sides at the bottom of the clamping arms are clamping parts, and the clamping parts are equipped with anti-slip silicone pads.

4. The irradiation device for preserving fresh mushroom according to claim 1, wherein: The shielding cover is made of lead-steel composite plate with a thickness of 8-12mm, and the inner side is covered with a lead rubber protective layer.

5. The irradiation device for preserving fresh mushroom according to claim 4, wherein: The shielding cover is equipped with a double-layer shielding door assembly at both the inlet and outlet ends. The double-layer shielding door assembly includes a main shielding door and an auxiliary shielding door, which open and close alternately. Both the main shielding door and the auxiliary shielding door are made of lead-steel composite plate. The thickness of the main shielding door is 8~12mm, and the thickness of the auxiliary shielding door is 5~8mm.

6. The irradiation preservation device for fresh mushroom according to claim 5, wherein: Both the main shielding door and the auxiliary shielding door are provided with gaps for the transmission chain to pass through, and shielding brushes are installed at the gaps.

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