CN113209326B

CN113209326B - Single-machine position scanning window cold chain sterilization device and method and application

Info

Publication number: CN113209326B
Application number: CN202110698631.5A
Authority: CN
Inventors: 杜玉光; 周文振; 李涛; 刘永; 高国华
Original assignee: Original Kehenghui Technology Co ltd
Current assignee: Original Kehenghui Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-09-30
Anticipated expiration: 2041-06-23
Also published as: CN113209326A

Abstract

The invention belongs to the field of cold chain transportation, and discloses a device and a method for sterilizing a single-machine position scanning window cold chain and application. The method comprises the following steps: two at least transmission device, tilting mechanism, steering mechanism, the irradiation device of parallel arrangement, transmission device includes: the device comprises a horizontal section and an inclined section, wherein a steering mechanism is arranged at one end, far away from the inclined section, of the horizontal section, an irradiation device is arranged above the inclined section, a right-angle conveying mechanism is arranged between the steering mechanisms of the two transmission mechanisms, and at least one transmission mechanism is provided with two turnover mechanisms. The method for cold chain irradiation sterilization of the single-machine scanning window solves the problems, can thoroughly kill the active new coronavirus and other active viruses on the outer surface of the cold chain product and in the inner part depth of the product, and protects the health of people in China. And is a lossless, fast process.

Description

Single-machine position scanning window cold chain sterilization device and method and application

Technical Field

The invention belongs to the field of cold chain sterilization, and particularly relates to a cold chain sterilization method for a single-machine position scanning window.

Background

The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.

Many viruses are resistant to low temperatures but not high temperatures, and relevant experiments show that most viruses survive for a month in a cold room at 4 ℃, and when the temperature is lowered to freezing, the viruses can survive stably for years, and the biological structure of the viruses is not destroyed during survival, and the viruses have the possibility of being transmitted after leaving the freezing environment.

In particular, the recent multiple findings of the cold chain transmission of new coronavirus continue to threaten the health of people in China. The problem of virus killing of the imported goods of cold chain products by imported customs is needed to be solved.

Because the cold chain system is rated for low temperatures, this approach using thermal sterilization is not suitable for cold chain systems; many chemical disinfectants can generate harmful substances to human bodies, so that the chemical disinfectants cannot be used in cold chain foods for disinfection; the ozone sterilization technique is not suitable for the cold chain system because ozone itself is harmful to human body, and the sterilization is required in an unmanned environment and the sterilization time is long.

Radiation sterilization is widely used in cold chain systems because it does not produce pungent odor and does not produce any chemical residue during sterilization. However, the inventor finds that: in the traditional irradiation sterilization, the scanning window irradiates vertically downwards or horizontally, so that six faces of a cube cannot be completely covered, and the sterilization efficiency and effectiveness are still to be improved.

Disclosure of Invention

In order to overcome the problems, the invention provides a method for cold chain sterilization of a single-machine scanning window. The cold chain irradiation sterilization method of the single-machine scanning window solves the problems, can thoroughly kill the active new coronavirus and other active viruses on the outer surface of the cold chain product and in the inner part depth of the product, and protects the health of people in China. And is a lossless, fast process.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

in a first aspect of the present invention, there is provided an apparatus for cold chain sterilization of a single-station scanning window, comprising: at least two transmission device, tilting mechanism, steering mechanism, irradiation apparatus of parallel arrangement, transmission device includes: the device comprises a horizontal section and an inclined section, wherein a steering mechanism is arranged at one end, far away from the inclined section, of the horizontal section, an irradiation device is arranged above the inclined section, a right-angle conveying mechanism is arranged between the steering mechanisms of the two transmission mechanisms, and at least one transmission mechanism is provided with a turnover mechanism.

The background of the invention of the technology is that the current new coronavirus is continuously spread, and the health of people in China is continuously threatened. The problem of virus killing of the imported goods of cold chain products by imported customs is needed to be solved.

The scanning width of the electron beam current reaches a specific width (2000 mm). And through the transmission mechanism, when passing under the scanning window, the conveyor belt is lifted to a specific height, so that the upper surface of the product forms an angle of 135 degrees with the vertical plane of the scanning window. Through two times of overturning, the product is overturned for 180 degrees, so that six surfaces of the cold chain product can be covered by rays, the uniform irradiation dose of the cold chain product can be ensured, and the sterilizing effect is consistent. Ensuring that the outer surface of the cold chain product is completely and uniformly irradiated by electron beam rays, and achieving the purpose of killing new coronavirus. Meanwhile, the parallel transmission mechanisms are adopted, so that compared with the traditional linear transmission mechanism, the sterilization device saves space and reduces the installation amount of the irradiation device on the basis of keeping the sterilization effect and efficiency.

In a second aspect of the present invention, a method for cold chain sterilization of a single-machine-position scanning window is provided, which includes:

scanning the product by adopting any one of the devices, wherein the product firstly runs downwards from the top of the inclined section and is irradiated for the first time;

after primary irradiation, the rectangular product enters a horizontal section and is turned for 180 degrees through a turning structure;

the overturned products sequentially enter the steering mechanisms of the two transmission mechanisms, so that the products reversely move on the other transmission mechanism;

the product enters the inclined section from the horizontal section to carry out secondary irradiation, thus finishing sterilization.

According to the single-machine cold chain sterilization method, the conveyor belt is lifted by a specific angle, three surfaces of a cold chain product can be completely irradiated, the product is turned over for two times by 90 degrees, and the outer surfaces of the remaining two or more products can be irradiated by using the same electron beam scanning window. The purpose of completely irradiating the outer surface of the product by rays is achieved.

In a third aspect of the invention, the application of any one of the above-mentioned single-machine scanning window cold chain sterilization devices in the disinfection and sterilization of goods is provided.

The invention has good radiation sterilization effect, convenient installation and small occupied area, thus being hopeful to be widely applied to the disinfection and sterilization of goods.

The invention has the beneficial effects that:

(1) the invention can sterilize and disinfect the inner and outer surfaces of the cold chain product packaging material, has high efficiency, and has large treatment capacity of 100 tons every day.

(2) The construction cost is low, and one irradiation electron accelerator can meet the requirement.

(3) The device is simple in structure, convenient to operate, high in practicability and easy for large-scale production.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a front view of a single-unit scanning window cold chain sterilization;

FIG. 2 is a side view of a single-station scanning window cold chain sterilization;

FIG. 3 is a top view of a single-unit scanning window cold chain sterilization;

wherein, 1 is a scanning window, 2 is a conveyor belt, 3 is a turnover mechanism, and 4 is a right-angle pushing device.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate that the directions of movement are consistent with those of the drawings, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element needs to have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

The terms "mounted", "connected", "fixed", and the like in the present invention are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.

Interpretation of terms:

the right-angle conveying mechanism in the invention refers to: the device can make the moving direction of the goods generate 90 degrees deflection.

A device for cold chain sterilization of a single-machine-position scanning window comprises: at least two transmission device, tilting mechanism, steering mechanism, irradiation apparatus of parallel arrangement, transmission device includes: horizontal segment and slope section, the one end that the slope section was kept away from to the horizontal segment is provided with steering mechanism, the top of slope section is provided with irradiation device, is provided with right angle transport mechanism between two transmission device's the steering mechanism, has at least to be provided with two tilting mechanism on a transmission device.

In some embodiments, the irradiation width of the electron beam radiation of the irradiation device covers two adjacent transmission mechanisms, preferably up to 2000 mm. The width of the electron beam stream is calculated to cover the cold chain product of both conveyors. This is the key point of the present invention.

In some embodiments, in the inclined section, the upper surface of the product is at an angle of 125-145 degrees, preferably 135 degrees, with respect to the vertical plane of the scanning window. The conveyor belt gradually rises by 150mm at a distance of 2000mm, so that the upper surface of the product forms an angle of 135 degrees with the vertical plane of the scanning window, and three surfaces of the goods (rectangle) can be effectively irradiated in the process of one-time irradiation.

In some embodiments, the height difference between the highest point of the inclined section and the horizontal section is 120-180 mm, preferably 150mm, so that a certain angle is formed between the product and the irradiation device, and three surfaces of the goods can be effectively irradiated.

In some embodiments, the length of the conveying mechanism is 1800-2400 mm, preferably 2000mm, so that the goods can stably and continuously run.

In some embodiments, the conveyor chain speed is set at 2-4 m/min, preferably 3 m/min. The conveyor belt speed was 3 meters/minute and the product was twice turned over and irradiated twice.

In some embodiments, the irradiation device comprises: and an electron accelerator with power set at 10Mev and 15kw to ensure sterilization effect.

In some embodiments, the outer packaging of the product is rectangular, preferably square, to facilitate shipping, improve irradiation efficiency and sterilization.

In some embodiments, the turnover mechanism is a cross turnover frame, has a simple structure, and can realize turnover by means of the inertia of the goods on the conveying belt.

In some embodiments, the cross-shaped turnover frame is formed by intersecting a first turnover piece and a second turnover piece and rotates by taking the center of the cross as an axis. The first overturning part and the second overturning part are blocky and can integrally support the goods.

In some embodiments, the turnover mechanism is provided with an even number, but does not include zero, so that the goods can be turned over by 180 degrees, and the complete irradiation of six surfaces can be realized through double-station scanning.

In some embodiments, one end of each of the two parallel conveyor belts is provided with a right-angle pusher to transfer goods from one conveyor belt to the other.

In some embodiments, a linear 10Mev/20kw electron accelerator is used, and the stability of the radial electron beam motion is achieved by using an external focusing magnet (helical coil), the high-energy electron beam is focused in a magnetic field parallel to the high-energy electron beam, is continuously accelerated to 10Mev by microwaves, is scanned by a scanning magnet, penetrates the titanium film, and is irradiated on the goods.

The present invention is described in further detail below with reference to specific examples, which are intended to be illustrative of the invention and not limiting.

Example 1:

1. and constructing a concrete shielding room meeting the design requirement. After the shielding chamber has the installation condition.

2. A one-table 10Mev, 20kw linear electron accelerator 1 is installed. Setting the angle of the scanning window: perpendicular to the horizontal plane, as shown in fig. 1. The scanning window beam width is adjusted to a suitable width, more than twice the width of the conveyor belts 2, to completely cover both conveyor belts 2.

3. And installing the transmission chain meeting the design requirement.

4. And a turnover mechanism 3 meeting the design requirement is installed, so that the goods can be turned over for 180 ℃.

5. Debugging the equipment to enable the power parameters of the equipment to reach the following values: 10Mev, 20 kw. Then run at 15 kw.

6. The operation was carried out with a conveyor chain speed set at 3 m/min.

7. The product is placed on a conveyor chain and irradiated. After the product is irradiated twice, the product is completely killed, and the effect of killing viruses is achieved.

8. And taking down the cold chain product.

Example 2:

a shielding room is needed to be constructed and one electron accelerator is placed in the shielding room.

The method adopts a linear 10Mev/20kw electron accelerator, adopts an external focusing magnet (spiral coil) to obtain the stability of radial electron beam motion, the high-energy electron beam is focused in a magnetic field parallel to the electron beam, is continuously accelerated to 10Mev by microwave, and is scanned by a scanning magnet, penetrates through a titanium film and irradiates on goods. Patent protection points are as follows: the beam sweep width reaches a certain width (2000 mm), the width of the conveyor belt 2 is 800 mm, and the beam sweep width is twice as much as the conveyor belt to completely cover both conveyor belts. And by means of the transport mechanism 3, the conveyor belt 2 is raised by a certain height while passing under the scanning window 1, patent protection point: the specific data are: at a distance of the conveyor belt 2 with the length of 2000mm, the conveyor belt 2 gradually rises by 150mm, so that the upper surface of the product forms an angle of 135 degrees with the vertical plane of the scanning window 1. Through two times of overturning, the product is overturned for 180 degrees, so that six surfaces of the cold chain product can be covered by rays, the uniform irradiation dose of the cold chain product can be ensured, and the sterilizing effect is consistent. Ensuring that the outer surface of the cold chain product is completely and uniformly irradiated by electron beam rays, and achieving the purpose of killing new coronavirus.

A transmission chain capable of adjusting the speed is arranged. By means of the transmission mechanism, the conveyor belt 2 rises a certain height while passing under the scanning window 1, and the specific data are: at a distance of the conveyor belt 2 with the length of 2000mm, the conveyor belt 2 gradually rises by 150mm, so that the upper surface of the product forms an angle of 135 degrees with the vertical plane of the scanning window 1.

Set up one set of turning device 3, can overturn 180 degrees angles with the object. And realizing two-time overturning.

One set of electron accelerator device is arranged and configured. And a scan width of up to 2000 mm. And the width of the beam current led out from the scanning window 1 is required to meet the specific width, and the cold chain products on the two conveyor belts 2 can be covered.

The transport chain was run at a speed of 3 m/min and the electron accelerator power was set at 10Mev, 15 kw.

Example 3:

a device for cold chain sterilization of a single-machine-position scanning window comprises: two at least transmission device, tilting mechanism, steering mechanism, the irradiation device of parallel arrangement, transmission device includes: the device comprises a horizontal section and an inclined section, wherein a steering mechanism is arranged at one end, far away from the inclined section, of the horizontal section, an irradiation device is arranged above the inclined section, a right-angle conveying mechanism is arranged between the steering mechanisms of the two transmission mechanisms, and at least one transmission mechanism is provided with two turnover mechanisms.

In some embodiments, the irradiation width of the electron beam radiation of the irradiation device covers two adjacent transmission mechanisms, preferably up to 2000 mm. The width of the electron beam stream is calculated to cover the cold chain product of both conveyors 2. This is the key point of the present invention.

In some embodiments, the top surface of the product is at an angle of 125 to 145 degrees, preferably 135 degrees, to the vertical plane of the scanning window in the inclined section. The conveyor belt 2 gradually rises 150mm above the distance of the conveyor belt 2 with the length of 2000mm, so that the upper surface of the product forms an angle of 135 degrees with the vertical plane of the scanning window 1, and three surfaces of the goods (rectangle) can be effectively irradiated in the process of one-time irradiation.

In some embodiments, the height difference between the highest point of the inclined section and the horizontal section is 120-180 mm, preferably 150 mm.

In some embodiments, the length of the transport mechanism is 1800 to 2400mm, preferably 2000 mm.

In some embodiments, the transport chain running speed is set at 2 to 4 m/min, preferably 3 m/min. The conveyor belt speed was 3 meters/minute and the product was twice turned over and irradiated twice.

In some embodiments, the irradiation device comprises: electron accelerator with electron accelerator power set at 10Mev, 15 kw.

In some embodiments, the product is rectangular.

In some embodiments, the turnover mechanism 3 is a cross-shaped turnover frame, which has a simple structure and can realize turnover by means of the inertia of the goods on the conveyor belt.

In some specific embodiments, the cross-shaped turning frame is formed by intersecting a first turning piece and a second turning piece and rotates by taking the center of the cross as an axis. The first overturning part and the second overturning part are blocky and can integrally support the goods.

In some embodiments, the turnover mechanism is provided with an even number, but not including zero, to turn the goods 180 °, and a second scan is performed on the other conveyor belt to achieve total illumination of six sides.

In some embodiments, one end of each of the two parallel belts is provided with a right-angle pusher 4 to transfer goods from one belt 2 to the other belt 2.

In some embodiments, a linear 10Mev/20kw electron accelerator is used, the stability of the radial electron beam motion is achieved by using an additional focusing magnet (helical coil), the high-energy electron beam is focused in a magnetic field parallel to it, is accelerated continuously to 10Mev by microwaves, is scanned by a scanning magnet, penetrates the titanium film and is irradiated on the goods.

The working process is shown in the following chart:

1. goods are placed at one end, close to the highest point of the inclined section, of the transmission mechanism, the goods are driven by the transmission mechanism to move forwards and enter the inclined section, and a certain included angle (preferably 135 degrees) is formed between the goods and a scanning window of the vertically arranged irradiation device in an irradiation area, so that three surfaces of the goods are sterilized and irradiated, as shown in the figures 1, 2 and 3.

2. The product is irradiated for the first time, and six faces of the product are irradiated with three faces.

3. The product continues to move forward along the conveyor belt and is turned for the first time by 90 degrees through the first turning mechanism arranged at the horizontal section.

4. The product has passed the second turning mechanism and has been turned through 180.

5. The product reaches the end of the first conveyor belt, the movement direction of the product is deflected by 90 degrees through the right-angle pushing device, the product passes through the connecting section between the two conveyor belts and reaches the end of the second conveyor belt, the movement direction of the product is deflected by 90 degrees under the pushing action of the other right-angle pushing device, the product continues to move along the second conveyor belt and enters the inclined section of the second conveyor belt, a certain included angle (preferably 135 degrees) is formed between the product and a scanning window of the vertically arranged irradiation device in an irradiation area, secondary irradiation is carried out, and the rest three surfaces are irradiated. Achieving the purpose of complete disinfection and sterilization.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made in the technical solutions described in the foregoing embodiments, or equivalents thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the present invention has been described with reference to the specific embodiments, it should be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. A method for cold chain sterilization of a single-machine position scanning window is characterized by comprising the following steps: at least two transmission device, tilting mechanism, steering mechanism, irradiation apparatus of parallel arrangement, transmission device includes: the device comprises a horizontal section and an inclined section, wherein a steering mechanism is arranged at one end of the horizontal section, which is far away from the inclined section, an irradiation device is arranged above the inclined section, a right-angle conveying mechanism is arranged between the steering mechanisms of the two transmission mechanisms, and at least one transmission mechanism is provided with a turnover mechanism;

in the inclined section, the upper surface of the product and the vertical plane of the scanning window form an angle of 125-145 degrees; the length of the transmission mechanism is 1800-2400 mm; the irradiation width of electron beam rays of the irradiation device covers two adjacent transmission mechanisms; in the process of one-time irradiation, three surfaces of the product can be effectively irradiated;

the turnover mechanism is provided with an even number of turnover mechanisms, so that goods are turned over by 180 degrees, and the whole irradiation of six surfaces is realized through double-machine-position scanning;

the method comprises the following specific steps:

the product firstly runs downwards from the top of the inclined section and is irradiated for the first time;

after primary irradiation, the product enters a horizontal section and is turned for 180 degrees through a turning structure;

2. The method for cold chain sterilization of the scanning window of the single machine position as claimed in claim 1, wherein the height difference between the highest point of the inclined section and the horizontal section is 120-180 mm.

3. The method for cold chain sterilization with scanning window at single machine station as claimed in claim 1, wherein the speed of the conveyor chain is set at 2-4 m/min.

4. The method of single-station scanning window cold chain sterilization as set forth in claim 1, wherein said irradiation device comprises: electron accelerator, electron accelerator power was set at 10Mev, 15 kw.

5. The method of claim 1 wherein the product is rectangular.

6. Use of the method for cold chain sterilization of a single-machine position scanning window according to any one of claims 1 to 5 for sterilization of goods.