Particle processing device for electron irradiation and electron accelerator

Abstract

The utility model discloses a kind of particle processing device and electron accelerator for electronic irradiation, the particle processing device includes feed pipe interface, discharge pipe interface and device main body, the device main body includes first cavity, second cavity and connecting seat, the connecting seat is located between first cavity and second cavity, the connecting seat is installed in the lower of the electron export of scanning box, the top of the connecting seat is equipped with a chute frame and a titanium partition, the chute frame includes a chute, the titanium partition is used to be inserted into the chute from the side surface of chute frame;The first cavity is connected with feed pipe interface, the first cavity height decreases and width increases along feed direction;The second cavity is connected with discharge pipe interface, the second cavity height increases and width decreases along feed direction.The application can achieve good irradiation effect when transmitting particle, and it is convenient to replace key parts, and the heat dissipation effect is good to prolong the service life of equipment.

Description

Technical Field

[0001] This utility model relates to a particulate matter treatment device and an electron accelerator for electron irradiation. Background Technology

[0002] A high-voltage accelerator is a device used to accelerate charged particles by utilizing a high-voltage electric field. In a high-voltage accelerator, charged particles are accelerated to extremely high speeds for particle physics research or to generate high-energy particle beams for other experiments. A high-voltage accelerator typically includes an accelerating cavity, a magnetic field, and a control system, and is capable of producing high-energy beams of charged particles. Common high-voltage accelerators include electron accelerators and proton accelerators.

[0003] Electron accelerator irradiation technology is a non-destructive treatment method that uses high-energy electron beams to penetrate materials and achieve sterilization, insecticidal effects, germination inhibition, or modification through ionization. In the field of particulate matter (such as grains, medicinal materials, and feed) treatment, this technology is gradually becoming an important implementation method due to its high efficiency, lack of radioactive residue, and precise controllability.

[0004] Existing electron accelerators suffer from poor particulate matter treatment and inadequate heat dissipation, which makes the equipment prone to damage. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of existing electron accelerators, such as poor particulate matter treatment effect and poor heat dissipation leading to easy equipment damage. The present invention provides a particulate matter treatment device and electron accelerator for electron irradiation that can achieve good irradiation effect when transmitting particulate matter, facilitate the replacement of key parts, and have good heat dissipation to extend the service life of the equipment.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A particulate matter treatment device for electron irradiation, the particulate matter treatment device being positioned below an electron accelerator scanning chamber, characterized in that the particulate matter treatment device includes an inlet pipe interface, an outlet pipe interface, and a device body.

[0008] The main body of the device includes a first cavity, a second cavity, and a connecting seat. The connecting seat is located between the first cavity and the second cavity and is installed below the electronic outlet of the scanning box. The top of the connecting seat is provided with a sliding frame and a titanium partition. The sliding frame includes a sliding groove, and the titanium partition is used to be inserted into the sliding groove from the side of the sliding frame.

[0009] The first cavity is connected to the feed pipe interface, and the height of the first cavity decreases and the width increases along the feeding direction;

[0010] The second cavity is connected to the discharge pipe interface, and the height of the second cavity increases and the width decreases along the feeding direction.

[0011] When an electron accelerator irradiates particulate matter with a high-energy electron beam emitted through a scanning box, the thickness of the irradiated area must be reduced as much as possible because the electron beam has limited penetrating power.

[0012] The main body of the invention is an irregularly shaped cavity, which serves as a channel for irradiated particles. The particles are transported through the irradiated area by airflow provided by a pneumatic conveyor.

[0013] Preferably, the slide is disposed between the slide frame and the upper surface of the device main body shell, and both the slide frame and the device main body shell are provided with electron beam through holes.

[0014] Preferably, the titanium partition includes an upper frame and a lower frame, with a titanium membrane sandwiched between the upper frame and the lower frame.

[0015] Preferably, after the particulate matter processing device is fixed to the scanning box, a gap is provided between the top of the connecting seat and the bottom of the scanning box.

[0016] Preferably, an air knife is provided on the top of the main body shell of the device, the length direction of the air knife is parallel to the length direction of the scanning box, and the air outlet of the air knife is aligned with the gap.

[0017] Preferably, the sliding frame has inclined surfaces at both the front and rear.

[0018] Preferably, the front side of the transmission channel of the connector is connected to the first cavity and the rear side of the transmission channel is connected to the second cavity. The bottom of the connector has a bottom protrusion, the transmission channel is above the bottom protrusion, and a tungsten base plate is below the bottom protrusion. The upper surface of the tungsten base plate matches the shape of the bottom protrusion; or,

[0019] The bottom of the connector is provided with a tungsten base plate, and the transmission channel is located above the tungsten base plate. The tungsten base plate is connected to the lower surface of the main body shell of the device.

[0020] Preferably, the first cavity has a uniformly decreasing cross-sectional height and a uniformly increasing cross-sectional width along the feeding direction;

[0021] The second cavity has a uniformly increasing cross-sectional height and a uniformly decreasing cross-sectional width along the feeding direction.

[0022] Preferably, the cross-sections of both the first cavity and the second cavity are hexagonal.

[0023] This utility model also provides an electron accelerator, characterized in that the electron accelerator includes an acceleration tube, a scanning box, and a particulate matter processing device for electron irradiation as described above.

[0024] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0025] The positive and progressive effects of this utility model are as follows:

[0026] This application can achieve good irradiation effect when transmitting particulate matter, while facilitating the replacement of key components, and has good heat dissipation to extend the service life of the equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the electron accelerator according to Embodiment 1 of this utility model.

[0028] Figure 2 This is a schematic diagram of the particulate matter treatment device according to Embodiment 1 of this utility model.

[0029] Figure 3 This is another structural schematic diagram of the particulate matter treatment device according to Embodiment 1 of this utility model.

[0030] Figure 4 This is another structural schematic diagram of the particulate matter treatment device according to Embodiment 1 of this utility model.

[0031] Figure 5 This is another structural schematic diagram of the particulate matter treatment device according to Embodiment 1 of this utility model.

[0032] Figure 6 This is another structural schematic diagram of the particulate matter treatment device according to Embodiment 1 of this utility model.

[0033] Figure 7 This is another structural schematic diagram of the particulate matter treatment device according to Embodiment 1 of this utility model. Detailed Implementation

[0034] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0035] Example 1

[0036] In this embodiment, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] See Figures 1 to 7 This embodiment provides an electron accelerator, which includes an acceleration tube 31, a scanning box 21, and a particulate matter processing device 11.

[0038] The particulate matter processing device is located below the electron accelerator scanning box.

[0039] The particulate matter treatment device includes an inlet pipe interface 41, an outlet pipe interface 51, and a device body.

[0040] The main body of the device includes a first cavity 111, a second cavity 112, and a connecting seat 113.

[0041] The connector 113 is located between the first cavity 111 and the second cavity 112, and is installed below the electronic outlet of the scanning box 21.

[0042] The top of the connecting seat 113 is provided with a sliding frame 1131 and a titanium partition 1132. The sliding frame 1131 includes a sliding groove 1133, and the titanium partition 1132 is used to be inserted into the sliding groove from the side of the sliding frame.

[0043] The first cavity 111 is connected to the feed pipe interface, and the height of the first cavity decreases and the width increases along the feeding direction;

[0044] The second cavity 112 is connected to the discharge pipe interface, and the height of the second cavity increases and the width decreases along the feeding direction.

[0045] The slide is located between the slide frame and the upper surface of the device main body shell 115. Both the slide frame 1131 and the device main body shell 115 are provided with electron beam through holes.

[0046] The titanium partition 1132 includes an upper frame and a lower frame, with a titanium membrane sandwiched between the upper frame and the lower frame.

[0047] After the particulate matter processing device is fixed to the scanning box, a gap is provided between the top of the connecting seat and the bottom of the scanning box.

[0048] An air knife 61 is provided on the top of the main body shell of the device. The length direction of the air knife is parallel to the length direction of the scanning box, and the air outlet of the air knife is aligned with the gap.

[0049] The air knife is connected to the air inlet 611.

[0050] The air output from the air knife passes through the gap between the lower flange 211 of the scanning box and the upper surface of the main body housing 115, and then reaches the gap 212 between the top of the connecting seat and the bottom of the scanning box.

[0051] The sliding frame has inclined surfaces at both the front and back.

[0052] The front side of the transmission channel 1136 of the connector 113 is connected to the first cavity, and the rear side of the transmission channel is connected to the second cavity.

[0053] The bottom of the connecting seat 113 is provided with a tungsten base plate 1135, the upper part of the tungsten base plate is the transmission channel, the tungsten base plate is connected to the lower surface of the main body shell of the device, and the upper surface of the tungsten base plate protrudes upward.

[0054] Along the feeding direction, the cross-sectional height of the first cavity decreases uniformly and the cross-sectional width increases uniformly.

[0055] The second cavity has a uniformly increasing cross-sectional height and a uniformly decreasing cross-sectional width along the feeding direction.

[0056] Both the first and second cavities have hexagonal cross-sections.

[0057] The key design features of this embodiment include:

[0058] The transverse cross-section of the cavity transitions from a circular shape near the duct at the particulate inlet to a long strip shape below the irradiation window. During this cross-sectional change, the width of the cross-sectional profile gradually increases while the thickness gradually decreases, maintaining a relatively constant cross-sectional area. This is to reduce the resistance to the particulate mixing airflow.

[0059] The cavity contains a rectangular irradiation area, above which a sliding frame is welded. A titanium diaphragm can be inserted between the sliding frame and the opening on the upper surface of the cavity. The titanium diaphragm is pressed flat against the upper surface of the cavity by the squeezing force of the sliding frame, forming a certain degree of airtightness. High-energy electron beams can penetrate the titanium diaphragm and enter the cavity.

[0060] The above-mentioned flat titanium partition ensures that the upper surface of the cavity remains a plane, while the lower surface of the corresponding beam window is a gently curved surface, thus achieving a smooth transition and facilitating the smooth passage of the particulate matter mixed airflow.

[0061] The aforementioned titanium partitions will be worn down by particles after prolonged use, and are considered a consumable. Once worn, they can be removed from the slide and replaced.

[0062] A gap is designed between the chute frame and the lower flange of the scanning box. An air knife is installed on one side of the gap, which can deliver air into the gap. The airflow carries away the large amount of waste heat generated by the electron beam impacting the titanium foil, thereby extending the service life of the titanium foil (titanium window).

[0063] A tungsten base plate is installed at the bottom of the cavity, corresponding to the beam window position. It serves two functions: first, to block the remaining electron beam energy, providing shielding protection; second, after some electrons collide with the tungsten, they generate X-rays that are reflected upwards, irradiating particulate matter more effectively and maximizing energy utilization.

[0064] Example 2

[0065] This embodiment is basically the same as Embodiment 1, except that:

[0066] The bottom of the connector has a bottom protrusion, the upper part of the bottom protrusion is the transmission channel, and the lower part of the bottom protrusion is a tungsten base plate, the upper surface of the tungsten base plate matching the shape of the bottom protrusion.

[0067] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A particulate matter treatment device for electron irradiation, the particulate matter treatment device being positioned below an electron accelerator scanning chamber, characterized in that, The particulate matter treatment device includes an inlet pipe interface, an outlet pipe interface, and a main body of the device. The main body of the device includes a first cavity, a second cavity, and a connecting seat. The connecting seat is located between the first cavity and the second cavity and is installed below the electronic outlet of the scanning box. The top of the connecting seat is provided with a sliding frame and a titanium partition. The sliding frame includes a sliding groove, and the titanium partition is used to be inserted into the sliding groove from the side of the sliding frame. The first cavity is connected to the feed pipe interface, and the height of the first cavity decreases and the width increases along the feeding direction; The second cavity is connected to the discharge pipe interface, and the height of the second cavity increases and the width decreases along the feeding direction.

2. The particulate matter treatment device for electron irradiation as described in claim 1, characterized in that, The slide is located between the slide frame and the upper surface of the device main body shell, and both the slide frame and the device main body shell are provided with electron beam through holes.

3. The particulate matter treatment device for electron irradiation as described in claim 2, characterized in that, The titanium partition includes an upper frame and a lower frame, with a titanium membrane sandwiched between the upper frame and the lower frame.

4. The particulate matter treatment apparatus for electron irradiation as described in claim 3, characterized in that, After the particulate matter processing device is fixed to the scanning box, a gap is provided between the top of the connecting seat and the bottom of the scanning box.

5. The particulate matter treatment apparatus for electron irradiation as described in claim 4, characterized in that, An air knife is provided on the top of the main body shell of the device. The length direction of the air knife is parallel to the length direction of the scanning box, and the air outlet of the air knife is aligned with the gap.

6. The particulate matter treatment apparatus for electron irradiation as described in claim 5, characterized in that, The sliding frame has inclined surfaces at both the front and back.

7. The particulate matter treatment apparatus for electron irradiation as described in claim 1, characterized in that, The front side of the transmission channel of the connector is connected to the first cavity, and the rear side of the transmission channel is connected to the second cavity. The bottom of the connector has a bottom protrusion, the transmission channel is located above the bottom protrusion, and a tungsten base plate is located below the bottom protrusion. The upper surface of the tungsten base plate matches the shape of the bottom protrusion; or... The bottom of the connector is provided with a tungsten base plate, and the transmission channel is located above the tungsten base plate. The tungsten base plate is connected to the lower surface of the main body shell of the device.

8. The particulate matter treatment apparatus for electron irradiation as described in claim 1, characterized in that, Along the feeding direction, the cross-sectional height of the first cavity decreases uniformly and the cross-sectional width increases uniformly. The second cavity has a uniformly increasing cross-sectional height and a uniformly decreasing cross-sectional width along the feeding direction.

9. The particulate matter treatment apparatus for electron irradiation as described in claim 1, characterized in that, Both the first and second cavities have hexagonal cross-sections.

10. An electron accelerator, characterized in that, The electron accelerator includes an acceleration tube, a scanning box, and a particulate matter treatment device for electron irradiation as described in any one of claims 1 to 9.

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