CN113865321A - Drying device and drying method for radioactive wet waste - Google Patents
Drying device and drying method for radioactive wet waste Download PDFInfo
- Publication number
- CN113865321A CN113865321A CN202111254745.7A CN202111254745A CN113865321A CN 113865321 A CN113865321 A CN 113865321A CN 202111254745 A CN202111254745 A CN 202111254745A CN 113865321 A CN113865321 A CN 113865321A
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- wet waste
- drying
- radioactive wet
- feeding
- air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B20/00—Combinations of machines or apparatus covered by two or more of groups F26B9/00 - F26B19/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/08—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a vertical or steeply-inclined axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/02—Applications of driving mechanisms, not covered by another subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The embodiment of the invention provides a drying device and a drying method for radioactive wet waste, which comprise the following steps: the box body is provided with an air inlet, an air outlet and a feeding door; the heater is arranged in the box body close to the air inlet to heat the incoming air of the air inlet; the air supply channel is provided with a plurality of air holes and is arranged in the box body close to the heater so that the air coming from the heater enters the drying area through the air holes; the feeding rotating device is arranged in the drying area and used for conveying the radioactive wet waste standard barrel and drying the radioactive wet waste standard barrel in a rotating state; and the feeding pipe is arranged on the box body corresponding to the drying area and used for feeding the radioactive wet waste standard cylinder. The embodiment of the invention enhances the heating uniformity of the radioactive wet waste standard cylinder, increases the heating area of the radioactive wet waste standard cylinder and effectively enhances the drying effect.
Description
Technical Field
The invention relates to a drying device and a drying method for radioactive wet waste.
Background
According to the requirements of the existing standard, the water content of the radioactive waste must be less than 1% to meet the treatment or storage conditions, while the sources of the radioactive wet waste are mainly a reactor main factory and a three-waste treatment system, and the radioactive wet waste can be subjected to next treatment or storage after being dried.
In the existing technology or device for drying the radioactive wet waste, the radioactive wet waste is only dried from the aspects of changing air quantity and heating quantity, but not from the device, so that the drying effect of the radioactive wet waste is poor, and the actual application of the project is not ideal.
Disclosure of Invention
The embodiment of the invention provides a drying device and a drying method for radioactive wet waste, which are used for improving the drying effect of the radioactive wet waste.
The embodiment of the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a drying device for radioactive wet waste, including:
the box body is provided with an air inlet, an air outlet and a feeding door;
the heater is arranged in the box body close to the air inlet to heat the incoming air of the air inlet;
the air supply channel is provided with a plurality of air holes and is arranged in the box body close to the heater so that the air coming from the heater enters the drying area through the air holes;
the feeding rotating device is arranged in the drying area and used for conveying the radioactive wet waste standard barrel and drying the radioactive wet waste standard barrel in a rotating state; and
and the feeding pipe is arranged on the box body corresponding to the drying area and used for feeding the radioactive wet waste standard cylinder.
Further, the air supply passage includes:
the vertical air supply channel is arranged between the heater and the drying area and used for supplying air to the side part of the radioactive wet waste standard cylinder; and
and the transverse air supply channel is communicated with the vertical air supply channel and is used for supplying air into the radioactive wet waste standard cylinder.
Furthermore, the plurality of air holes are all honeycomb holes.
Further, the feeding rotating device comprises:
the rotary tray is used for conveying the radioactive wet waste standard cylinder and drying the radioactive wet waste standard cylinder in a rotary state; and
and the conveying roller way is used for placing and conveying the rotary tray into and out of the box body.
Further, the feed pipe is a telescopic pipe.
Furthermore, the drying device is also provided with a measuring device for measuring the length of the extension tube entering the radioactive wet waste standard cylinder.
Further, the feeding gate is a stretching gate.
Furthermore, the transverse air supply channel is arranged on the box body above the drying area, and a heat insulation layer is arranged at the bottom of the outer side of the box body.
In a second aspect, an embodiment of the present invention provides a drying method using the drying device for radioactive wet waste, including:
the radioactive wet waste standard cylinder is conveyed to a drying area of the box body through the feeding rotating device, and the feeding door is closed;
extending a feeding pipe into the radioactive wet waste standard cylinder, and feeding;
taking the feeding pipe down from the box body, and sealing the feeding opening;
air is fed from an air inlet, a heater is started to heat, and meanwhile, a rotary tray of the feeding rotary device starts to rotate;
and feeding through the feeding pipe again until the height of the residue in the radioactive wet waste standard cylinder is 2/3 of the height of the radioactive wet waste standard cylinder after drying, and stopping feeding.
Further, the length of the feeding pipe extending into the radioactive wet waste standard cylinder is 2/3 of the height of the radioactive wet waste standard cylinder.
Compared with the prior art, the embodiment of the invention has the following advantages and beneficial effects:
according to the drying device and the drying method for the radioactive wet waste, hot air is introduced into the drying area through the air supply channel, so that the radioactive wet waste standard cylinder is heated by the hot air in a rotating state, the heating uniformity of the radioactive wet waste standard cylinder is enhanced, the heating area of the radioactive wet waste standard cylinder is increased, and the drying effect is effectively enhanced.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a drying device for radioactive wet waste.
Fig. 2 is a schematic top view of the drying apparatus for radioactive wet waste.
Reference numbers and corresponding part names in the drawings:
1-air inlet, 2-electric heater, 3-honeycomb holes, 4-box, 5-feeding pipe, 6-measuring device, 7-air outlet, 8-stretching door, 9-tray, 10-roller table, 11-rotating device and 12-insulating layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.
Examples
Referring to fig. 1 and 2, in order to improve the drying effect of the radioactive wet waste, in a first aspect, an embodiment of the present invention provides a drying device for radioactive wet waste, including: the box body 4 is provided with an air inlet 1, an air outlet 7 and a feeding door; the heater is arranged in the box body close to the air inlet to heat the incoming air of the air inlet; the air supply channel is provided with a plurality of air holes and is arranged in the box body close to the heater so that the air coming from the heater enters the drying area through the air holes; the feeding rotating device is arranged in the drying area and used for conveying the radioactive wet waste standard barrel and drying the radioactive wet waste standard barrel in a rotating state; and the feeding pipe 5 is arranged on the box body corresponding to the drying area and used for feeding the radioactive wet waste standard cylinder.
Referring to fig. 1, the air inlet is arranged at the left side of the box body, and the air outlet is arranged at the upper side of the right part of the box body; the right part of the heater is an air supply channel and a heating area; the heater is communicated with the heating area through an air supply channel; wind enters from the air inlet and then is heated by the heater to become hot wind, the hot wind enters the drying area through the plurality of air holes of the air supply channel, and the radioactive wet waste standard cylinder with waste placed in the drying area is dried in the hot gas atmosphere of the drying area in a rotating state. In order to ensure the sealing performance of the whole body, the feeding of the radioactive wet waste standard cylinder is fed through a feeding pipe on the box body. Optionally, the heater is an electric heater 2.
Therefore, the embodiment of the invention introduces the hot air into the drying area through the air supply channel, so that the radioactive wet waste standard cylinder is heated by the hot air in a rotating state, the heating uniformity of the radioactive wet waste standard cylinder is enhanced, the heating area of the radioactive wet waste standard cylinder is increased, and the drying effect is effectively enhanced.
Further, the air supply passage includes:
the vertical air supply channel is arranged between the heater and the drying area and used for supplying air to the side part of the radioactive wet waste standard cylinder; and the transverse air supply channel is communicated with the vertical air supply channel and is used for supplying air into the radioactive wet waste standard cylinder.
Referring to fig. 1, the air supply channel covers the left side and the top of the drying area, namely the vertical air supply channel covers the left side of the box body, and the horizontal air supply channel covers the top of the box body, so that the radioactive wet waste standard cylinder can be simultaneously subjected to hot air drying at the side part and the top, the heat distribution around the radioactive wet waste standard cylinder is more uniform, and the drying effect is better.
Further, the plurality of air holes are all honeycomb holes 3.
In order to facilitate the entering of more hot air, a plurality of air holes are arranged to be honeycomb holes with more densely distributed holes.
Further, the feeding rotating device comprises: the rotary tray is used for conveying the radioactive wet waste standard cylinder and drying the radioactive wet waste standard cylinder in a rotary state; and a conveying roller table 10 for placing and conveying the rotary tray into and out of the box body.
Referring to fig. 1, the rotating tray includes a tray 9 and a rotating device 11 for rotating the tray.
Further, the feed pipe is a telescopic pipe.
Furthermore, the drying device is also provided with a measuring device 6 for measuring the length of the extension tube entering the radioactive wet waste standard cylinder.
Further, the feeding gate is a stretching gate 8.
Referring to fig. 1, the feeding door is arranged on the right side of the box body and used for stretching up and down to realize opening or closing.
In order to enable the radioactive wet waste standard cylinder to have a better drying effect, the transverse air supply channel is arranged on the box body above the drying area, and the bottom of the outer side of the box body is provided with a heat preservation layer 12.
In a second aspect, an embodiment of the present invention provides a drying method using the drying device for radioactive wet waste, including:
the radioactive wet waste standard cylinder is conveyed to a drying area of the box body through the feeding rotating device, and the feeding door is closed;
extending a feeding pipe into the radioactive wet waste standard cylinder, and feeding;
taking the feeding pipe down from the box body, and sealing the feeding opening;
air is fed from an air inlet, a heater is started to heat, and meanwhile, a rotary tray of the feeding rotary device starts to rotate;
and feeding through the feeding pipe again until the height of the residue in the radioactive wet waste standard cylinder is 2/3 of the height of the radioactive wet waste standard cylinder after drying, and stopping feeding.
Further, the length of the feeding pipe extending into the radioactive wet waste standard cylinder is 2/3 of the height of the radioactive wet waste standard cylinder.
The specific working process is as follows:
1) firstly, connecting a power supply to a drying oven device, opening a feeding door, operating a transmission roller way, and moving a rotating device and a tray to the left side of the drying oven;
2) placing the radioactive wet waste standard cylinder on a tray, reversely running a roller way, conveying a rotating device and the roller way to a set position, and closing a stretching door;
3) extending a telescopic feeding pipe to 2/3 in the barrel, starting feeding at a certain speed, and stopping feeding after a period of time;
4) retracting the telescopic feeding pipe and sealing the feeding hole;
5) opening an air inlet and an air outlet, supplying air at a certain air speed, starting an electric heater for heating, and starting a rotating device to enable the radioactive wet waste standard cylinder to perform self-rotation;
6) feeding again after drying for a period of time, and repeating the steps from 3) to 4) until the dried residue at the bottom of the barrel reaches 2//3 of the barrel body, and stopping feeding again;
7) and closing the rotating device, the electric heater, the air inlet and the air outlet in sequence, and closing the power supply.
Therefore, the embodiment of the invention considers the influence of airflow organization on drying the radioactive wet waste, is provided with the lateral honeycomb holes and the top honeycomb holes, can set the air supply into lateral air supply and top air supply, uniformly supplies air, performs omnibearing drying on the radioactive wet waste standard cylinder, and effectively enhances the drying effect; the device is provided with the rotating device above the roller way, and is used for enabling the standard cylinder to generate autorotation, so that the standard cylinder is uniformly heated, meanwhile, the heating area of the standard cylinder is increased, and the drying effect is effectively enhanced; the roller way of the device can be butted with an external roller way to realize automatic transportation, and the feeding pipe of the embodiment of the invention can perform intermittent feeding when the device operates.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A drying apparatus for radioactive wet waste, comprising:
the box body is provided with an air inlet, an air outlet and a feeding door;
the heater is arranged in the box body close to the air inlet to heat the incoming air of the air inlet;
the air supply channel is provided with a plurality of air holes and is arranged in the box body close to the heater so that the air coming from the heater enters the drying area through the air holes;
the feeding rotating device is arranged in the drying area and used for conveying the radioactive wet waste standard barrel and drying the radioactive wet waste standard barrel in a rotating state; and
and the feeding pipe is arranged on the box body corresponding to the drying area and used for feeding the radioactive wet waste standard cylinder.
2. The drying apparatus for radioactive wet waste of claim 1, wherein said air supply path comprises:
the vertical air supply channel is arranged between the heater and the drying area and used for supplying air to the side part of the radioactive wet waste standard cylinder; and
and the transverse air supply channel is communicated with the vertical air supply channel and is used for supplying air into the radioactive wet waste standard cylinder.
3. The drying apparatus for radioactive wet waste of claim 1, wherein said plurality of air holes are honeycomb holes.
4. The drying apparatus for radioactive wet waste of claim 1, wherein said feed rotating means comprises:
the rotary tray is used for conveying the radioactive wet waste standard cylinder and drying the radioactive wet waste standard cylinder in a rotary state; and
and the conveying roller way is used for placing and conveying the rotary tray into and out of the box body.
5. The drying apparatus for radioactive wet waste of claim 1, wherein said feed pipe is a bellows.
6. The drying apparatus for radioactive wet waste as claimed in claim 5, wherein the drying apparatus is further provided with a measuring device for measuring the length of the bellows entering the standard radioactive wet waste canister.
7. The drying apparatus for radioactive wet waste of claim 1, wherein said feed gate is a tension gate.
8. The drying apparatus for radioactive wet waste as claimed in claim 2, wherein said lateral air supply passage is provided on the casing above the drying area, and the bottom of the outside of said casing is provided with an insulating layer.
9. A drying method using the drying apparatus for radioactive wet waste of any one of claims 1 to 8, comprising:
the radioactive wet waste standard cylinder is conveyed to a drying area of the box body through the feeding rotating device, and the feeding door is closed;
extending a feeding pipe into the radioactive wet waste standard cylinder, and feeding;
taking the feeding pipe down from the box body, and sealing the feeding opening;
air is fed from an air inlet, a heater is started to heat, and meanwhile, a rotary tray of the feeding rotary device starts to rotate;
and feeding through the feeding pipe again until the height of the residue in the radioactive wet waste standard cylinder is 2/3 of the height of the radioactive wet waste standard cylinder after drying, and stopping feeding.
10. The drying method of claim 9, wherein the length of the feed pipe extending into the standard radioactive wet waste canister is 2/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111254745.7A CN113865321A (en) | 2021-10-27 | 2021-10-27 | Drying device and drying method for radioactive wet waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111254745.7A CN113865321A (en) | 2021-10-27 | 2021-10-27 | Drying device and drying method for radioactive wet waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113865321A true CN113865321A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111254745.7A Pending CN113865321A (en) | 2021-10-27 | 2021-10-27 | Drying device and drying method for radioactive wet waste |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006014601A (en) * | 2004-06-30 | 2006-01-19 | Fukuichiya:Kk | Drying device for dried persimmon, or the like |
| BRPI1101893A2 (en) * | 2010-04-29 | 2012-11-20 | Weyerhaeuser Nr Co | Method for optimizing value of common wood products, and computer readable storage media |
| CN108120257A (en) * | 2017-12-14 | 2018-06-05 | 芜湖华烨新材料有限公司 | A kind of jet-propelled cloth drying device |
| CN209341714U (en) * | 2018-12-28 | 2019-09-03 | 国家电投集团远达环保工程有限公司重庆科技分公司 | A kind of radioactive wet waste processing system and heating device |
| CN212205436U (en) * | 2020-04-03 | 2020-12-22 | 李程 | Efficient drying device is used in traditional chinese medicine processing |
| CN113218156A (en) * | 2021-04-27 | 2021-08-06 | 一重集团大连工程技术有限公司 | Dryer for drying treatment in middle-low radioactive solid waste barrel |
| CN214336353U (en) * | 2021-02-04 | 2021-10-01 | 中国电子科技集团公司第十二研究所 | Drying device in radioactive waste liquid microwave bucket |
-
2021
- 2021-10-27 CN CN202111254745.7A patent/CN113865321A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006014601A (en) * | 2004-06-30 | 2006-01-19 | Fukuichiya:Kk | Drying device for dried persimmon, or the like |
| BRPI1101893A2 (en) * | 2010-04-29 | 2012-11-20 | Weyerhaeuser Nr Co | Method for optimizing value of common wood products, and computer readable storage media |
| CN108120257A (en) * | 2017-12-14 | 2018-06-05 | 芜湖华烨新材料有限公司 | A kind of jet-propelled cloth drying device |
| CN209341714U (en) * | 2018-12-28 | 2019-09-03 | 国家电投集团远达环保工程有限公司重庆科技分公司 | A kind of radioactive wet waste processing system and heating device |
| CN212205436U (en) * | 2020-04-03 | 2020-12-22 | 李程 | Efficient drying device is used in traditional chinese medicine processing |
| CN214336353U (en) * | 2021-02-04 | 2021-10-01 | 中国电子科技集团公司第十二研究所 | Drying device in radioactive waste liquid microwave bucket |
| CN113218156A (en) * | 2021-04-27 | 2021-08-06 | 一重集团大连工程技术有限公司 | Dryer for drying treatment in middle-low radioactive solid waste barrel |
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Application publication date: 20211231 |