WO2017111527A1 - Appareil de distribution de matériau radioprotecteur comprenant du silicium et une poudre de protection mélangés l'un avec l'autre - Google Patents

Appareil de distribution de matériau radioprotecteur comprenant du silicium et une poudre de protection mélangés l'un avec l'autre Download PDF

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Publication number
WO2017111527A1
WO2017111527A1 PCT/KR2016/015159 KR2016015159W WO2017111527A1 WO 2017111527 A1 WO2017111527 A1 WO 2017111527A1 KR 2016015159 W KR2016015159 W KR 2016015159W WO 2017111527 A1 WO2017111527 A1 WO 2017111527A1
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WO
WIPO (PCT)
Prior art keywords
silicon
powder
shielding
discharge
discharge nozzle
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Application number
PCT/KR2016/015159
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English (en)
Korean (ko)
Inventor
김희수
정연걸
김동진
조광운
김상태
박갑래
Original Assignee
한국기초과학지원연구원
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Publication of WO2017111527A1 publication Critical patent/WO2017111527A1/fr

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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials

Definitions

  • the present invention relates to a radiation shielding material ejecting apparatus, and more particularly, to a radiation shielding material ejecting apparatus in which silicon and shielding powder are mixed and ejected.
  • Radioactivity refers to a phenomenon in which unstable atomic nuclei emit radiation from the inside in the process of self-decomposition.
  • Some isotopes are those that emit radiation on their own and change from an unstable state into a stable element, which is called a radioisotope.
  • radiation is widely used in national institutions, hospitals, research institutes, universities and non-destructive testing companies for the purpose of energy sources, medical care, agriculture, material analysis, and the like.
  • radiation Since radiation is very high in energy, it has a destructive power that, if directly exposed to radioactivity, can break or damage the organism's gene chain. The nature and effects of radiation do not depend on naturally occurring or artificially generated artificial radiation. Side effects from radiation exposure have been reported: generalized fatigue, hair loss, gastrointestinal disorders, oral disorders, urinary disorders, and genital disorders. It is very important to protect the external exposure of the human body or damage to the device from radiation through radiation shielding.
  • alpha rays There are three types of radiation, alpha rays, beta rays, and gamma rays. Depending on the type, the degree of permeation of the material is different, and the materials and methods that can be shielded are different.
  • materials including lead, boron, iron, hydrogen, heavy concrete, and the like are used as radiation shielding materials.
  • the shielded radiation is gamma rays
  • lead, iron, tungsten compounds or mixtures are used.
  • the radiation to be shielded is a neutron
  • boron, lithium, gadolinium, samarium, europium, cadmium, disprosium compounds or mixtures are used.
  • the conventional shielding material is manufactured by mixing the shielding material in a predetermined amount, it is difficult to determine the amount suitable for the intensity of the radiation energy at the site of use of the shielding material, and thus the shielding material to the shielding object in an amount suitable for the strength of the radiation energy. There was a difficulty in injecting or coating it.
  • the present invention provides a radiation shielding material discharging apparatus in which silicon and shielding powder are mixed so that the shielding material is easily injected into the shielding object and the curing of the shielding material is easy, and the amount of shielding powder can be adjusted and injected according to the energy of radiation. .
  • a radiation shielding material discharging apparatus in which silicon and shielding powder are mixed includes a silicon storage tube in which silicon is stored; A silicon discharge nozzle disposed at a front end of the silicon storage tube to form a path through which the silicon is discharged to the outside, and a discharge port through which the silicon is discharged to the distal end to discharge the silicon to the outside; And a powder supply unit disposed outside the silicon discharge nozzle and supplying shielding powder from the outside of the silicon discharge nozzle to the inside of the silicon discharge nozzle, wherein the silicon moves in the direction of the discharge port from the inside of the silicon discharge nozzle.
  • the shielding powder is supplied from the powder supply unit, the silicon and the shielding powder mixed with each other are discharged to the outside of the silicon discharge nozzle.
  • the silicon discharge nozzle comprises a powder supply hole for introducing the shielding powder, the powder supply unit, a powder storage container for storing the shielding powder; And a powder discharge part disposed at a lower end of the powder storage container and opposed to the powder supply hole to discharge the shielding powder toward the powder supply hole.
  • the powder discharge portion the powder discharge hole formed in the bottom surface of the powder reservoir; And a hole opening / closing member mounted inside the powder reservoir so as to contact the bottom surface of the powder reservoir, and reducing and increasing the opening size of the powder discharge hole by rotating in the powder reservoir.
  • the silicon discharge nozzle is installed on the silicon discharge nozzle so as to be disposed between the powder discharge part and the powder supply hole, and the shielding powder discharged from the powder discharge part is transferred by a predetermined amount toward the powder supply hole to discharge the silicon. It may further include a powder transfer member to be introduced into the nozzle.
  • the powder transfer member may include a rotating shaft installed on the silicon discharge nozzle; And a rotating body rotatably coupled to the rotating shaft to rotate in one direction and having powder accommodating grooves arranged along the rotating direction about the rotating shaft.
  • the stirring apparatus may further include a stirring member rotatably installed in the silicon discharge nozzle and rotating to mix the silicon and the shielding powder introduced into the silicon discharge nozzle.
  • the stirring member may include: a first stirring blade rotatably mounted on an inner surface of the silicon discharge nozzle; And a second stirring blade rotatably mounted on an inner surface of the silicon discharge nozzle and disposed to face the first stirring blade, wherein the first stirring blade and the second stirring blade can rotate in opposite directions to each other. have.
  • the shielding material discharging device in which the silicon and the shielding powder are mixed according to the present invention is used, the shielding material is easily injected into the shielding object and the curing of the shielding material is easy, and the amount of the shielding powder can be adjusted and adjusted according to the energy of the radiation. In this case, the shielding powder is evenly distributed in the silicon and can be discharged.
  • FIG. 1 and 2 are a perspective view and a cross-sectional view for explaining a radiation shielding material discharge device mixed with a silicon and shielding powder according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view illustrating the hole opening and closing member shown in FIG. 1.
  • first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • FIG. 1 and 2 are a perspective view and a cross-sectional view for explaining a radiation shielding material discharge device mixed with silicon and shielding powder according to an embodiment of the present invention
  • Figure 3 is a cross-sectional view for explaining the hole opening and closing member shown in FIG. to be.
  • a radiation shielding material discharging apparatus in which silicon and shielding powder are mixed includes a silicon storage tube 100, a silicon discharge nozzle 200, and a powder supply unit 300. do.
  • the silicon storage tube 100 stores the silicon in the gel state.
  • the silicon storage tube 100 may have a hollow cylindrical shape. Gel-like silicon is stored in the inner space of the cylinder.
  • the silicon discharge nozzle 200 discharges silicon from the silicon storage tube 100.
  • the silicon discharge nozzle 200 is disposed at the front end of the silicon storage tube 100 to form a path through which silicon is discharged to the outside, and a discharge port 210 for discharging silicon is formed at the distal end.
  • the silicon discharge nozzle 200 may be screwed with the silicon storage tube 100, may be a hollow cylindrical shape having a diameter smaller than the silicon storage tube 100, the end portion formed with the outlet 210 It may be formed in the form of decreasing diameter.
  • the silicon discharge nozzle 200 is connected to the powder supply unit 300 and the shielding powder 10 is introduced from the powder supply unit 300.
  • the silicon discharge nozzle 200 has a powder supply hole 220 formed at one side thereof. do.
  • the powder supply hole 220 is preferably positioned close to the silicon storage tube 100 such that the shielding powder 10 introduced through the powder supply unit 300 is sufficiently mixed and discharged in the internal space of the silicon discharge nozzle 200. .
  • the powder supply part 300 supplies the shielding powder to the inside of the silicon discharge nozzle 200.
  • the powder supply part 300 includes a powder storage container 310 and a powder discharge part 320.
  • the powder storage container 310 has an inner space in which the shielding powder 10 may be stored.
  • the powder reservoir 310 is formed on the bottom surface 311, the upper side of the side portion 312 and the side portion 312 perpendicular to the bottom surface 311 and the upper surface portion facing the bottom surface 311 is open It may be a hollow cylindrical shape, the cover 313 is coupled to the open upper surface portion of the cylinder.
  • the powder reservoir 310 is disposed to face the powder supply hole 220 formed in the silicon discharge nozzle (200). To this end, the powder reservoir 310 is disposed above the powder supply hole 220, the axial direction of the powder reservoir 310 is perpendicular to the axial direction of the silicon storage tube 100 can be coupled to the silicon discharge nozzle 200. have.
  • the silicon discharge nozzle ( The coupling portion 230 having the male screw portion 231a on the outer surface is formed to protrude in a cylindrical shape from the outer surface of the silicon discharge nozzle 200 at the position of the powder supply hole 220 in the outer surface of the powder storage container 310.
  • the lower end of the side portion 312 and the coupling portion 230 may be screwed.
  • the powder discharge part 320 allows the shielding powder 10 stored in the powder storage container 310 to be discharged.
  • the powder discharge part 320 includes a powder discharge hole 321 and a hole opening and closing member 322.
  • the powder discharge hole 321 is formed in the bottom surface 311 of the powder reservoir 310.
  • the powder discharge hole 321 may have a fan shape.
  • the hole opening and closing member 322 is mounted inside the powder storage container 310 to contact the bottom surface 311 of the powder storage container 310, and rotates in the powder storage container 310 to open the powder discharge hole 321. And increase and decrease.
  • the hole opening and closing member 322 may have a disc shape in which a portion thereof is cut into a shape corresponding to the shape of the powder discharge hole 321, and the hole opening and closing member 322 is rotated to rotate the hole of the powder discharge hole 321.
  • the adjusting knob 322a may be included to adjust the size of the opening.
  • the adjusting knob 322a may be integrally formed on the side surface of the disc shape and may be exposed to the outside of the powder storage container 310.
  • a slit 314 may be formed along the circumferential direction of the cylinder on the bottom surface 311 of the powder reservoir 310 so that the adjustment knob 322a is exposed to the outside of the powder reservoir 310, and the slit 314 Through the control knob (322a) may be exposed to the outside of the powder reservoir (310).
  • the hole opening and closing member 322 by holding the control knob 322a exposed to the outside of the powder storage container 310 with the user's hand to move the adjustment knob 322a along the slit 314 to open the hole opening and closing member 322 3), the uncut portion of the disc may be positioned above the powder discharge hole 321 or the entire cut portion of the disc may correspond to the powder discharge hole 321 as shown in FIG.
  • the opening size of the powder discharge hole 321 may be adjusted according to the width of the powder discharge hole 321.
  • the powder storage container 310 may be formed of a transparent material so that the degree of opening of the powder discharge hole 321 through the hole opening and closing member 322 is controlled from the outside of the powder storage container 310.
  • the shielding powder may vary depending on the type of radiation to be shielded through the radiation shielding material, and the amount supplied may vary according to the intensity of the radiation.
  • the shielding powder 10 may be one or more selected from the group consisting of boron, lithium, gadolinium, samarium, europium, cadmium, and dysprosium.
  • the shielding powder 10 may be one or more selected from the group consisting of lead, iron, and tungsten.
  • the radiation shielding material discharging device in which the silicon and the shielding powder are mixed may discharge the silicon stored in the silicon storage tube 100 to the outside through the silicon discharge nozzle 200 using a silicon gun. .
  • the shield powder 10 may be supplied to the inside of the silicon discharge nozzle 200 through the powder supply unit 300 to discharge the mixed silicon of the shield powder 10. That is, when the powder discharge hole 321 is opened by rotating the hole opening / closing member 322 mounted to the powder storage container 310 of the powder supply part 300, the shielding powder 10 stored in the powder storage container 310 is the powder storage container ( The shielding powder 10 discharged from the 310 through the powder discharge hole 321 and discharged is dropped toward the powder supply hole 220 formed in the silicon discharge nozzle 200 to be supplied into the silicon discharge nozzle 200. Can be.
  • Silicon mixed with the shielding powder 10 may be used as a shielding agent for radiation. That is, the shielding powder 10 is made of a material capable of shielding radiation of neutrons, X-rays, and gamma rays, and the shielding powder 10 is mixed with silicon to be present in the silicon, so that the discharged silicon is a shielding agent of radiation. It can be used as.
  • the amount of the shielding powder 10 mixed with the silicon may vary depending on the intensity of radiation to be shielded. That is, the shielding powder is controlled by adjusting the opening size of the powder discharge hole 321 through the process of reducing or increasing the opening size of the powder discharge hole 321 by rotating the hole opening and closing member 322 of the powder supply part 300. It is possible to adjust the amount of the discharged (10), thereby adjusting the amount of the shielding powder 10 is mixed in the silicon.
  • the radiation shielding material discharging device mixed with the silicon and shielding powder may further include a powder transfer member 400 and the stirring member 500.
  • the powder transfer member 400 is installed on the silicon discharge nozzle 200 to be disposed between the powder discharge part 320 and the powder supply hole 220, and the shielding powder 10 discharged from the powder discharge part 320. To the powder supply hole 220 by a predetermined amount to be introduced into the silicon discharge nozzle (200).
  • the powder transfer member 400 includes a rotating shaft 410 and a rotating body 420.
  • the rotating shaft 410 is installed on the silicon discharge nozzle 200.
  • the rotating shaft 410 may be installed so that both ends are supported on the inner surface of the coupling portion 230 formed in the silicon discharge nozzle 200 illustrated above.
  • the rotating body 420 transfers the shielding powder 10 discharged from the powder discharge hole 321 of the powder supply part 300 to the inside of the silicon discharge nozzle 200.
  • the rotating body 420 is rotatably coupled to the rotating shaft 410 located below the powder supply unit 300, wherein the rotating body 420 is part of the silicon discharge nozzle through the powder supply hole 220 It is inserted into the inside of the 200 and the remaining portion is located below the powder discharge hole 321 outside the silicon discharge nozzle (200).
  • the rotating body 420 coupled with the rotating shaft 410 rotates in one direction about the rotating shaft 410, and the powder accommodating grooves 421 are arranged along the rotating direction of the rotating body 420.
  • the shielding powder 10 discharged through the powder discharge hole 321 is dropped, and when the shielding powder 10 is located in the powder accommodating groove 421, the rotating body 420 rotates. As the position of the powder accommodating groove 421 is moved, the shielding powder 10 located in the powder accommodating groove 421 is transferred into the silicon discharge nozzle 200.
  • the rotating shaft 410 may be in the form of a gear in which protrusions (gears of a gear) having the same interval are formed on a disk-shaped rotating body.
  • the powder accommodating grooves 421 may be a space between the protrusions of the gear.
  • the stirring member 500 mixes the shielding powder 10 with the silicon so that the shielding powder 10 supplied into the silicon discharge nozzle 200 can be evenly distributed in the silicon on the gel.
  • the stirring member 500 is rotatably installed in the silicon discharge nozzle.
  • the stirring member 500 may include a first stirring blade 510 and a second stirring blade 520.
  • the first stirring blade 510 is rotatably mounted on the inner surface of the silicon discharge nozzle 200.
  • the first wing mounting rib 530 protruding from the inner surface of the silicon discharge nozzle 200 is formed on one inner side of the silicon discharge nozzle 200 and the first rotating shaft (530) is formed on the first wing mounting rib 530.
  • the first stirring blade 510 may be installed to allow free rotation through 410.
  • the second stirring blade 520 is rotatably mounted on the inner surface of the silicon discharge nozzle 200 so as to face the first stirring blade 510.
  • a second wing mounting rib 540 is formed inside the silicon discharge nozzle 200 to face the first wing mounting rib 530 at a predetermined distance, and is formed on the second wing mounting rib 540.
  • the second stirring blade 520 may be installed to allow free rotation through the second rotation shaft 410.
  • the first stirring blade 510 and the second stirring blade 520 is the first stirring blade 510 and the first by the discharge pressure of the silicon when the silicon proceeds toward the outlet 210 in the silicon discharge nozzle 200 2 stirring blade 520 can be rotated by the silicon push.
  • the first stirring blade 510 and the second stirring blade 520 may have opposite directions of rotation.
  • the structure in which the rotation directions of the first stirring blade 510 and the second stirring blade 520 are reversed for example, the inclination angle of the first stirring blade 510 and the second stirring blade 520.
  • the first stirring blade 510 and the second stirring blade 520 may be rotated in opposite directions.
  • the shielding powder 10 supplied into the silicon discharge nozzle 200 may be evenly distributed in the silicon.
  • the process of supplying and mixing the shielding powder 10 will be described below.
  • the shielding powder 10 stored in the powder storage container 310 of the powder supply unit 300 is controlled from the inside of the powder storage container 310 through the powder discharge hole 321 opened by adjusting the opening / closing member 322. Drop toward the rotor 420 located below the powder reservoir (310). The shielding powder 10 falling toward the rotating body 420 is accommodated inward of the powder accommodating grooves 421 of the rotating body 420.
  • the silicon gun when the silicon gun is operated to discharge the silicon from the silicon storage tube 100, the silicon is discharged from the silicon discharge nozzle by the discharge pressure generated when the silicon proceeds in the direction of the discharge port 210 in the silicon discharge nozzle 200. While passing quickly through the path of 200, the portion inserted into the silicon discharge nozzle 200 of the rotor 420, the first stirring blade 510 and the second stirring blade 520 is rotated.
  • the rotating body 420 rotates in a clockwise direction to move the shielding powders 10 accommodated inside the powder accommodating grooves 421 toward the powder supply hole 220, and accommodates the shielding powders 10.
  • the shielding powders 10 fall down from the inside of the powder accommodating grooves 421 to discharge silicon through the powder supply hole 220. It is supplied to the inside of the nozzle 200.
  • the supplied shielding powder 10 is introduced into the silicon on the gel, and the shielding powder 10 moves with the silicon toward the outlet 210.
  • the first stirring blade 510 and the second stirring blade 520 are rotated by the advancing silicon.
  • the first stirring blade 510 and the second stirring blade 520 is rotated in the opposite direction, the shielding powder introduced into the silicon as the first stirring blade 510 and the second stirring blade 520 ( 10) are stirred with the silicon so that the shielding powder 10 is evenly distributed in the silicon.
  • the silicon in which the shielding powder 10 is evenly distributed is discharged to the outside through the outlet 210 of the silicon discharge nozzle 200.
  • the shielding powders 10 discharged from the powder supply unit 300 accommodate the powder of the rotating body 420 of the powder transfer member 400. Interspersed in the grooves 421 and received inside the powder accommodating grooves 421, the rotor 420 rotates to move the shielding powders 10 into the silicon discharge nozzle 200 by a predetermined time interval or a constant speed. As a result, it can be dispersed in the silicon without being concentrated in one region in the silicon. Thus, the shielding powders 10 can be evenly distributed in the silicon.
  • the first mixing blade 510 and the second stirring blade 520 is rotated in the process of moving toward the outlet 210 of the silicon discharge nozzle 200, the silicon mixed with the shielding powder 10,
  • the shielding powders 10 are agitated with the silicon by the rotating first stirring blades 510 and the second stirring blades 520 so that the shielding powders may be more evenly distributed in the silicon in the gel state.
  • the radiation shielding material discharging device mixed with the silicon and shielding powder is not rotated in the direction opposite to the direction in which the rotating body 420 of the powder transfer member 400 rotates in one direction It may be configured to not.
  • the rotation limiting member 600 may be installed next to the powder supply hole 220 of the silicon discharge nozzle 200.
  • the rotation limiting member 600 may be in the form of a ratchet pawl, and is configured to rotate only upwards and not downwards.
  • the end of the rotation limiting member 600 may enter the inside of the powder accommodating groove 421 formed in the rotating body 420 and may be supported by a protrusion (gear tooth) located next to the powder accommodating groove 421.
  • a protrusion gear tooth located next to the powder accommodating groove 421.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Silicon Compounds (AREA)

Abstract

L'invention concerne un appareil de distribution d'un matériau radioprotecteur comprenant du silicium et une poudre de protection mélangés l'un avec l'autre. L'appareil de distribution d'un matériau radioprotecteur comprenant du silicium et une poudre de protection mélangés l'un avec l'autre comprend : un tube de stockage de silicium dans lequel du silicium est stocké ; une buse de distribution de silicium disposée sur l'extrémité avant du tube de stockage de silicium pour former un passage à travers lequel le silicium est distribué vers l'extérieur, la buse de distribution de silicium ayant une sortie sur son extrémité distale par laquelle le silicium est distribué vers l'extérieur ; et une unité d'alimentation en poudre disposée sur l'extérieur de la buse de distribution de silicium pour fournir la poudre de protection dans la buse de distribution de silicium depuis l'extérieur de la buse de distribution de silicium, la poudre de protection étant fournie dans la buse de distribution de silicium depuis l'unité d'alimentation en poudre lorsque le silicium à l'intérieur de la buse de distribution de silicium se déplace vers la sortie, et la poudre de protection et le silicium sont mélangés l'un avec l'autre et ensuite distribués vers l'extérieur de la buse de distribution de silicium. En utilisant l'appareil de distribution d'un matériau radioprotecteur comprenant du silicium et une poudre de protection mélangés l'un avec l'autre, il est possible : de faciliter l'injection du matériau de protection dans un objet à protéger et le durcissement du matériau de protection ; de régler la quantité de la poudre de protection en fonction de l'énergie de rayonnement ; et de distribuer le silicium avec la poudre de protection uniformément répartie dans ce dernier.
PCT/KR2016/015159 2015-12-23 2016-12-23 Appareil de distribution de matériau radioprotecteur comprenant du silicium et une poudre de protection mélangés l'un avec l'autre WO2017111527A1 (fr)

Applications Claiming Priority (2)

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KR1020150185005A KR101734902B1 (ko) 2015-12-23 2015-12-23 실리콘 및 차폐분말이 혼합된 방사선 차폐재 토출장치
KR10-2015-0185005 2015-12-23

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WO2017111527A1 true WO2017111527A1 (fr) 2017-06-29

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010156615A (ja) * 2008-12-26 2010-07-15 Mitsubishi Heavy Ind Ltd 放射線遮蔽方法および放射線遮蔽装置
WO2012010917A1 (fr) * 2010-07-19 2012-01-26 G.I.C. Ipari Szolgáltató És Kereskedelmi Kft. Aluminoborosilicate contenant un additif et son procédé de production
KR101401654B1 (ko) * 2013-04-02 2014-06-02 주식회사 엠티지 차폐재료, 그 제조방법 및 방사선 차폐조
EP2784782A2 (fr) * 2013-03-27 2014-10-01 Mitsubishi Heavy Industries, Ltd. Buse collectrice de matériau de blindage, récipient de blindage, dispositif et procédé de collecte de matériau de blindage
KR101523069B1 (ko) * 2014-10-31 2015-05-26 신정훈 사용후 핵연료 저장용기용 중성자 및 감마선 차폐재 주입장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010156615A (ja) * 2008-12-26 2010-07-15 Mitsubishi Heavy Ind Ltd 放射線遮蔽方法および放射線遮蔽装置
WO2012010917A1 (fr) * 2010-07-19 2012-01-26 G.I.C. Ipari Szolgáltató És Kereskedelmi Kft. Aluminoborosilicate contenant un additif et son procédé de production
EP2784782A2 (fr) * 2013-03-27 2014-10-01 Mitsubishi Heavy Industries, Ltd. Buse collectrice de matériau de blindage, récipient de blindage, dispositif et procédé de collecte de matériau de blindage
KR101401654B1 (ko) * 2013-04-02 2014-06-02 주식회사 엠티지 차폐재료, 그 제조방법 및 방사선 차폐조
KR101523069B1 (ko) * 2014-10-31 2015-05-26 신정훈 사용후 핵연료 저장용기용 중성자 및 감마선 차폐재 주입장치

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