AU2021101052A4 - Classified stepwise attenuation treatment device for solid radioactive wastes - Google Patents

Classified stepwise attenuation treatment device for solid radioactive wastes Download PDF

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Publication number
AU2021101052A4
AU2021101052A4 AU2021101052A AU2021101052A AU2021101052A4 AU 2021101052 A4 AU2021101052 A4 AU 2021101052A4 AU 2021101052 A AU2021101052 A AU 2021101052A AU 2021101052 A AU2021101052 A AU 2021101052A AU 2021101052 A4 AU2021101052 A4 AU 2021101052A4
Authority
AU
Australia
Prior art keywords
lead
shielding shell
radioactive wastes
treatment device
solid radioactive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU2021101052A
Inventor
Dequan FAN
Shan He
Yuren Huang
Dongwei Li
Jianzhong Lin
Peijie Lou
Xiaobing Peng
Lei Shi
Shengtao WANG
Bo Wu
Zhongjie YANG
Masun Zeng
Chaochao ZHANG
Fulin Zhang
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East China University of Science and Technology
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East China University of Science and Technology
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Publication date
Application filed by East China University of Science and Technology filed Critical East China University of Science and Technology
Priority to AU2021101052A priority Critical patent/AU2021101052A4/en
Application granted granted Critical
Publication of AU2021101052A4 publication Critical patent/AU2021101052A4/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G21F7/00—Shielded cells or rooms
    • G21F7/04—Shielded glove-boxes
    • G21F7/047—Shielded passages; Closing or transferring means between glove-boxes
    • 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
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal
    • 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
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/06—Details of, or accessories to, the containers
    • 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
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/30—Processing
    • 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
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/34—Disposal of solid waste

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The utility model discloses a classified stepwise attenuation treatment device for solid radioactive wastes. An inlet and an outlet are respectively formed in two ends of a lead shielding shell and used for storing and taking waste bins that store solid radioactive wastes; the lead shielding shell is formed by detachably connecting a plurality of sections of unit shells of which two ends are opened; two sets of automatic lifting lead doors are arranged and respectively enclosed and installed at the inlet and the outlet; a roller conveying group is installed on an inner bottom surface of the lead shielding shell to form a horizontal transfer structure; and the plurality of waste bins are arranged in parallel on the roller conveying group along a length direction of the lead shielding shell. In the utility model, the plurality of waste bins are arranged in parallel inside the lead shielding shell, and a waste treatment queue is formed in a chronological order, so that the radioactive wastes can be attenuated to a level below a safety line. Since the lead shielding shell may be assembled through different quantities of unit shells to form different lengths, the solid radioactive wastes can be adaptively subjected to classified attenuation treatment according to different half-life periods of the wastes. Drawings of Description 111111111 112 115 114 4 3 5 2 FIG. 1 23 21 41 22 113 1 53 FIG. 2 1

Description

Drawings of Description
111111111 112
115 114 4 3 5 2
FIG. 1
23
21
41 22
113 1
53
FIG. 2
Description
CLASSIFIED STEPWISE ATTENUATION TREATMENT DEVICE FOR SOLID RADIOACTIVE WASTES
Technical Field
The utility model relates to the technical field of treatment of radioactive wastes, and particularly relates to a classified stepwise attenuation treatment device for medical solid radioactive wastes.
Background
As nuclear technologies are applied to the medical field, nuclear medicine which rises by combination of the nuclear technologies and medicine has become an important branch discipline of modem medicine, and makes great contributions to human health diagnosis and disease treatment. During clinical diagnosis and treatment of nuclear medicine, radioactive and radiocontamination solid wastes are produced, such as used syringes, cotton swabs, gloves and vessels. If the solid wastes are not treated properly, radiation hazards may be easily caused to the public. At present, a common method of treating the daily solid radioactive wastes in hospitals is as follows: various radioactive wastes are centralized into a lead waste bin and then treated as general wastes after decay. Many different types of radiopharmaceuticals are applied to clinical diagnosis and treatment of the nuclear medicine. Different types of radioactive waste sources have different half-life periods and thus have an order of treatment time. In accordance with management regulations of the radioactive wastes, the radioactive wastes must be classified and collected, put into separate lead waste bins according to waste source activity, dates and types, and then treated after complete decay so as to avoid confusion and cross contamination, thereby providing good conditions for subsequent treatment, preparation and disposal. Therefore, more lead waste bins are needed during collection, so that management inconvenience is caused;
Description
and commercially available lead waste bins for shielding high-energy nuclides are particularly expensive and high in operating cost. Therefore, how to provide a device that can classify the radioactive wastes according to different half-life periods and conduct stepwise attenuation treatment on the wastes is a problem that urgently needs to be solved by those skilled in the art.
Summary
In view of this, the utility model provides a classified stepwise attenuation treatment device for solid radioactive wastes, for solving the above technical problems. To achieve the above purpose, the utility model adopts the following technical solutions: The classified stepwise attenuation treatment device for solid radioactive wastes includes: a lead shielding shell, wherein the lead shielding shell is of a horizontally arranged long-strip structure having a rectangular section; an inlet and an outlet are respectively formed in two ends of the lead shielding shell and respectively used for storing and taking waste bins that store solid radioactive wastes; the lead shielding shell is formed by detachably connecting a plurality of sections of unit shells of which two ends are opened; automatic lifting lead doors, wherein two sets of the automatic lifting lead doors are arranged and respectively enclosed and installed at the inlet and the outlet; a roller conveying group, wherein the roller conveying group is installed on an inner bottom surface of the lead shielding shell to form a horizontal transfer structure; and the plurality of waste bins are arranged in parallel on the roller conveying group along a length direction of the lead shielding shell.
Description
Through the above technical solutions, in the utility model, by installing the long lead shielding shell, the plurality of waste bins are arranged in parallel inside the lead shielding shell, and a waste treatment queue is formed in a chronological order, so that the radioactive wastes can be attenuated to a level below a safety line, and conveniently treated as general wastes later. Since the lead shielding shell may be assembled through different quantities of the unit shells to form different lengths, the solid radioactive wastes can be adaptively subjected to classified attenuation treatment according to different half-life periods of the wastes. Preferably, in the classified stepwise attenuation treatment device for solid radioactive wastes, horizontally fixed sliding rails are arranged on two vertical side walls of the unit shells; and chutes in sliding connection with the sliding rails are formed in two side walls of the waste bins. In the utility model, through a form of matching the roller conveying group with the sliding rails and the chutes, smooth conveying can be realized; and transport stability can also be ensured by virtue of limitation of the sliding rails and the chutes, thereby preventing the waste bins from turning over under the action of push. Preferably, in the classified stepwise attenuation treatment device for solid radioactive wastes, supporting seats are arranged on outer bottom walls at two ends of the lead shielding shell. Stable support can be provided; and location interference during assembly of the unit shells can be avoided. Preferably, in the classified stepwise attenuation treatment device for solid radioactive wastes, the automatic lifting lead doors include sliding lead doors and hydraulic cylinders; two side edges of the sliding lead doors are in sliding connection with the inlet or the outlet; transverse beams are fixed on top edges of the sliding lead doors; two hydraulic cylinders are respectively vertically arranged on two sides of the sliding lead doors; fixed ends of the hydraulic cylinders are fixed with top surfaces of the supporting seats; and telescopic ends of the hydraulic cylinders are fixed with the ends of the transverse beams. Through the adoption of
Description
the automatically controlled lead door structure in the utility model, the lead doors can be automatically lifted, thereby avoiding human contact and achieving higher safety. Preferably, in the classified stepwise attenuation treatment device for solid radioactive wastes, control buttons used for controlling the hydraulic cylinders to lift are arranged on outer side walls of the lead shielding shell. The device is convenient to control. Preferably, in the classified stepwise attenuation treatment device for solid radioactive wastes, flange plates are arranged at the ends of two adjacent unit shells and firmly connected by bolts. The device is convenient to detach and assemble. Preferably, in the classified stepwise attenuation treatment device for solid radioactive wastes, the quantity of the unit shells is 2 or 3. Short-time attenuation treatment use can be satisfied. Preferably, in the classified stepwise attenuation treatment device for solid radioactive wastes, the quantity of the unit shells is more than 3. Long-time attenuation treatment use can be satisfied. Preferably, in the classified stepwise attenuation treatment device for solid radioactive wastes, the roller conveying group is provided with unidirectional ratchets used for limiting reverse movement of the waste bins, so as to prevent the radioactive wastes from being repaired as general wastes without being attenuated and thus causing hazards if empty or new waste bins are placed at the outlet of the lead shielding shell by mistake. Through the above technical solutions, compared with the prior art, the utility model discloses the classified stepwise attenuation treatment device for solid radioactive wastes and has beneficial effects as follows: 1. In the utility model, through the long lead shielding shell, the plurality of waste bins are arranged in parallel inside the lead shielding shell, and the waste
Description
treatment queue is formed in a chronological order, so that the radioactive wastes can be attenuated to a level below a safety line, and conveniently treated as general wastes later. Since the lead shielding shell may be assembled by virtue of different quantities of the unit shells to form different lengths, the solid radioactive wastes can be adaptively subjected to classified attenuation treatment according to different half-life periods of the wastes. 2. In the utility model, through the form of matching the roller conveying group with the sliding rails and the chutes, smooth conveying can be realized; and transport stability can also be ensured by virtue of limitation of the sliding rails and the chutes, thereby preventing the waste bins from turning over under the action of push. 3. With the adoption of the automatically controlled lead door structure in the utility model, the lead doors can be automatically lifted, thereby avoiding human contact and achieving higher safety.
Description of Drawings
To more clearly describe the technical solution in the embodiments of the utility model or in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be simply presented below. Apparently, the drawings in the following description are merely the embodiments of the utility model, and for those ordinary skilled in the art, other drawings can also be obtained according to the provided drawings without contributing creative labor. Fig. 1 is a structural schematic diagram of a classified stepwise attenuation treatment device for solid radioactive wastes provided by the utility model; and Fig. 2 is a front view of an automatic lifting lead door provided by the utility model in an opened state. In the figures: 1-lead shielding shell;
Description
11-unit shell; 111-inlet; 112-outlet; 113-sliding rail; 114-flange plate; 115-bolt; 2-automatic lifting lead door; 21-sliding lead door; 22-hydraulic cylinder; 23-transverse beam; 3-roller conveying group; 4-waste bin; 41-chute; 5-supporting seat.
Detailed Description
The technical solution in embodiments of the utility model will be clearly and fully described below in combination with the drawings in the embodiments of utility model. Apparently, the described embodiments are merely part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those ordinary skilled in the art without contributing creative labor will belong to the protection scope of the utility model. By referring to Fig. 1 and Fig. 2, embodiments of the utility model disclose a classified stepwise attenuation treatment device for solid radioactive wastes, including: a lead shielding shell 1, wherein the lead shielding shell 1 is of a horizontally arranged long-strip structure having a rectangular section; an inlet 111 and an outlet 112 are respectively formed in two ends of the lead shielding shell 1 and respectively used for storing and taking waste bins 4 that store solid radioactive wastes; the lead shielding shell 1 is formed by detachably connecting a plurality of sections of unit shells 11 of which two ends are opened;
Description
automatic lifting lead doors 2, wherein two sets of the automatic lifting lead doors 2 are arranged and respectively enclosed and installed at the inlet 111 and the outlet 112; a roller conveying group 3, wherein the roller conveying group 3 is installed on an inner bottom surface of the lead shielding shell 1 to form a horizontal transfer structure; and the plurality of waste bins 4 are arranged in parallel on the roller conveying group 3 along a length direction of the lead shielding shell 1. To further optimize the above technical solution, horizontally fixed sliding rails 113 are arranged on two vertical side walls of the unit shells 11; and chutes 41 in sliding connection with the sliding rails 113 are formed in two side walls of the waste bins 4. To further optimize the above technical solution, supporting seats 5 are arranged on outer bottom walls at two ends of the lead shielding shell 1. To further optimize the above technical solution, the automatic lifting lead doors 2 comprise sliding lead doors 21 and hydraulic cylinders 22; two side edges of the sliding lead doors 21 are in sliding connection with the inlet 111 or the outlet 112; transverse beams 23 are fixed on top edges of the sliding lead doors 21; two hydraulic cylinders 22 are respectively vertically arranged on two sides of the sliding lead doors 21; fixed ends of the hydraulic cylinders 22 are fixed with top surfaces of the supporting seats 5; and telescopic ends of the hydraulic cylinders 22 are fixed with the ends of the transverse beams 23. To further optimize the above technical solution, control buttons used for controlling the hydraulic cylinders 22 to lift are arranged on outer side walls of the lead shielding shell 1. To further optimize the above technical solution, flange plates 114 are arranged at the ends of two adjacent unit shells 11 and firmly connected by bolts 115.
Description
To further optimize the above technical solution, the roller conveying group 3 is provided with unidirectional ratchets used for limiting reverse movement of the waste bins 4. To further optimize the above technical solution, when the quantity of the unit shells 11 is 2 or 3, short-time attenuation treatment use can be satisfied; and when the quantity of the unit shells 11 is more than 3, long-time attenuation treatment use can be satisfied. During use, the sliding lead door 21 at the inlet 111 is opened; the waste bin 4 is placed at the inlet 111; when the waste bin 4 is filled with collected solid wastes, a new waste bin 4 is placed, and the solid waste sources are continuously collected, by parity of reasoning. When the first placed waste bin 4 is placed over a sufficient number of half-life period, the waste bin 4 is pushed to the outlet 112 by the waste bins 4 placed later. Then, the waste bin 4 is taken out and labeled with a waste source type, activity and date; and the wastes are treated as general wastes. Each embodiment in the description is described in a progressive way. The difference of each embodiment from each other is the focus of explanation. The same and similar parts among all of the embodiments can be referred to each other. For the device disclosed by the embodiments, because the device corresponds to a method disclosed by the embodiments, the device is simply described. Refer to the description of the method part for the related part. The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Many modifications to these embodiments will be apparent to those skilled in the art. The general principle defined herein can be realized in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principle and novel features disclosed herein.

Claims (9)

Claims
1. A classified stepwise attenuation treatment device for solid radioactive wastes, comprising: a lead shielding shell (1), wherein the lead shielding shell (1) is of a horizontally arranged long-strip structure having a rectangular section; an inlet (111) and an outlet (112) are respectively formed in two ends of the lead shielding shell (1) and respectively used for storing and taking waste bins (4) that store solid radioactive wastes; the lead shielding shell (1) is formed by detachably connecting a plurality of sections of unit shells (11) of which two ends are opened; automatic lifting lead doors (2), wherein two sets of the automatic lifting lead doors (2) are arranged and respectively enclosed and installed at the inlet (111) and the outlet (112); a roller conveying group (3), wherein the roller conveying group (3) is installed on an inner bottom surface of the lead shielding shell (1) to form a horizontal transfer structure; and the plurality of waste bins (4) are arranged in parallel on the roller conveying group (3) along a length direction of the lead shielding shell (1).
2. The classified stepwise attenuation treatment device for solid radioactive wastes according to claim 1, wherein horizontally fixed sliding rails (113) are arranged on two vertical side walls of the unit shells (11); and chutes (41) in sliding connection with the sliding rails (113) are formed in two side walls of the waste bins (4).
3. The classified stepwise attenuation treatment device for solid radioactive wastes according to claim 1 or 2, wherein supporting seats (5) are arranged on outer bottom walls at two ends of the lead shielding shell (1).
4. The classified stepwise attenuation treatment device for solid radioactive wastes according to claim 3, wherein the automatic lifting lead doors (2) comprise sliding lead doors (21) and hydraulic cylinders (22); two side edges of the sliding lead doors (21) are in sliding connection with the inlet (111) or the outlet (112);
Claims
transverse beams (23) are fixed on top edges of the sliding lead doors (21); two hydraulic cylinders (22) are respectively vertically arranged on two sides of the sliding lead doors (21); fixed ends of the hydraulic cylinders (22) are fixed with top surfaces of the supporting seats (5); and telescopic ends of the hydraulic cylinders (22) are fixed with the ends of the transverse beams (23).
5. The classified stepwise attenuation treatment device for solid radioactive wastes according to claim 4, wherein control buttons used for controlling the hydraulic cylinders (22) to lift are arranged on outer side walls of the lead shielding shell (1).
6. The classified stepwise attenuation treatment device for solid radioactive wastes according to claim 3, wherein flange plates (114) are arranged at the ends of two adjacent unit shells (11) and firmly connected by bolts (115).
7. The classified stepwise attenuation treatment device for solid radioactive wastes according to claim 1, wherein the quantity of the unit shells (11) is 2 or 3.
8. The classified stepwise attenuation treatment device for solid radioactive wastes according to claim 1, wherein the quantity of the unit shells (11) is more than 3.
9. The classified stepwise attenuation treatment device for solid radioactive wastes according to claim 1, wherein the roller conveying group (3) is provided with unidirectional ratchets used for limiting reverse movement of the waste bins (4).
AU2021101052A 2021-02-26 2021-02-26 Classified stepwise attenuation treatment device for solid radioactive wastes Ceased AU2021101052A4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2021101052A AU2021101052A4 (en) 2021-02-26 2021-02-26 Classified stepwise attenuation treatment device for solid radioactive wastes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2021101052A AU2021101052A4 (en) 2021-02-26 2021-02-26 Classified stepwise attenuation treatment device for solid radioactive wastes

Publications (1)

Publication Number Publication Date
AU2021101052A4 true AU2021101052A4 (en) 2021-04-29

Family

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Family Applications (1)

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AU2021101052A Ceased AU2021101052A4 (en) 2021-02-26 2021-02-26 Classified stepwise attenuation treatment device for solid radioactive wastes

Country Status (1)

Country Link
AU (1) AU2021101052A4 (en)

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