CN107560336A - MOX uranium dioxide raw material preprocessing device and method - Google Patents
MOX uranium dioxide raw material preprocessing device and method Download PDFInfo
- Publication number
- CN107560336A CN107560336A CN201710761721.8A CN201710761721A CN107560336A CN 107560336 A CN107560336 A CN 107560336A CN 201710761721 A CN201710761721 A CN 201710761721A CN 107560336 A CN107560336 A CN 107560336A
- Authority
- CN
- China
- Prior art keywords
- magnetic valve
- mox
- raw material
- uranium dioxide
- drying box
- 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.)
- Granted
Links
- 239000002994 raw material Substances 0.000 title claims abstract description 22
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 title claims abstract description 21
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000007781 pre-processing Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 8
- 238000001035 drying Methods 0.000 claims abstract description 44
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 10
- 239000001307 helium Substances 0.000 claims description 8
- 229910052734 helium Inorganic materials 0.000 claims description 8
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000000748 compression moulding Methods 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- WZECUPJJEIXUKY-UHFFFAOYSA-N [O-2].[O-2].[O-2].[U+6] Chemical compound [O-2].[O-2].[O-2].[U+6] WZECUPJJEIXUKY-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910000439 uranium oxide Inorganic materials 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
A kind of MOX uranium dioxide raw material preprocessing devices, drying box connection gas drying, dedusting device, gas drying, dedusting device connection mechanical pump, mechanical pump connection check valve, check valve connection magnetic valve A, magnetic valve A connection drying boxes, wherein check valve is all connected with magnetic valve B, magnetic valve C with magnetic valve A, and wherein check valve can only be turned on by the direction of mechanical pump to magnetic valve A.
Description
Technical field
The invention belongs to nuclear industry pretreatment of raw material field, and in particular to a kind of MOX is filled with uranium dioxide pretreatment of raw material
Put and method.
Background technology
With uranium dioxide raw material, exposure in an atmosphere, can make the volatile impurity in uranium oxide particle to MOX for a long time
Increase, the accuracy of dispensing is influenceed, due to the presence of moisture, causes material viscosity increase, influence ball milling, mixing treatment effect,
Partial reductive impurity can also influence sintering quality.By pretreatment, it can effectively reduce the moisture in material powder and impurity contains
Amount, ensure powder quality.Conventional pretreatment equipment is baking oven, only considers the non-pretreatment for putting material, gentle for temperature control
Atmosphere controls Shortcomings, especially in terms of radiation protection, due to the radioactive feature of raw material, can not effectively control because of dust from flying
Caused by radiation risk, be unable to reach the requirement of pretreatment.
The content of the invention
It is an object of the invention to provide a kind of safe efficient, reliable MOX uranium dioxide pretreatment unit and side
Method, solves the deficiency of conventional pretreatment device.
Technical scheme is as follows：Drying box connection gas drying, dedusting device, gas drying, dedusting device 14 connect machine
Tool pump, mechanical pump connection check valve, check valve connection magnetic valve A, wherein magnetic valve A connection drying boxes, check valve and magnetic valve A
Magnetic valve B, magnetic valve C are all connected with, wherein check valve can only be turned on by the direction of mechanical pump to magnetic valve A.
The drying box is low boy cabinet structure, and its casing includes heat-insulation layer and shell, and wherein shell is located at heat-insulation layer
It is outside；Band guide rail glove stand is provided with drying box, electric heating element is located on glove stand；It is drying on the left of box body
Chamber door, chamber door are provided with compression molding heat-resistant silicon rubber elastic seal ring；And air intake-exhaust hole is also provided with casing；In drying
Platinum resistance thermometer sensor, temperature transducer and precision digital pressure gauge are also equipped with box body；Platinum resistance thermometer sensor, temperature transducer measures drying
Case environment temperature, thermometric electric signal are sent into PLC processing, pass through the comparison with design temperature, the heating of automatic controlled electric heating element.
The heat-insulation layer material is glass fibre cotton.
The shell is general steel plate housing.
The heat-insulation layer is bolted fixation with shell.
The chamber door is provided with compression molding heat-resistant silicon rubber elastic seal ring.
Observation window is provided with the chamber door, is double glazing, interlayer vacuum-pumping.
The platinum resistance thermometer sensor, temperature transducer ensures to seal by packing seal, is convenient for changing.
A kind of MOX uranium dioxide preprocessing method of raw materials, comprises the following steps：
S1：Magnetic valve C, magnetic valve A are closed, and magnetic valve B is opened, and mechanical pump startup vacuumizes；
S2：Magnetic valve B is closed after certain time, and magnetic valve C, magnetic valve A are opened, and helium is passed through by magnetic valve C；
S3：Magnetic valve B, magnetic valve C are closed, and magnetic valve A is opened, and mechanical pump makes gas be circulated in pipeline, and gas is successively
After gas drying, dedusting device, mechanical pump, check valve, return and recycled in drying box；
S4：Drying box is provided with precision digital pressure gauge, when hypotony, fills helium by controlling magnetic valve C to open,
Improve pressure.
The S2 reciprocating operations 3 times.
The remarkable result of the present invention is：It can realize that temperature is automatic, intelligent control, radioactivity is avoided by gas circulation
Powder is flown upward to the external world, reaches radiation protection requirement.
Brief description of the drawings
Fig. 1 is MOX uranium dioxide raw material preprocessing device schematic diagram of the present invention
Fig. 2 is MOX uranium dioxide raw material preprocessing device drying box schematic diagram of the present invention
In figure：1 electric heating element, 2 heat-insulation layers, 3 shells, 4 glove stands, 5 platinum resistance thermometer sensor, temperature transducers, 6 precision digital pressures
Power meter, 7 chamber doors, 8 air intake-exhaust holes, 10 drying boxes, 11 magnetic valve B, 12 magnetic valves
C, 13 magnetic valve A, 14 gas drying, dedusting devices, 15 mechanical pumps, 16 check valves
Embodiment
A kind of MOX uranium dioxide raw material preprocessing devices, as shown in figure 1, drying box 10 connects gas drying, dedusting device
14th, gas drying, dedusting device 14 connects mechanical pump 15, and mechanical pump 15 connects check valve 16, check valve 16 connects magnetic valve A13, electricity
Magnet valve A13 connections drying box 10, wherein check valve 16 are all connected with magnetic valve B11, magnetic valve C12 with magnetic valve A13, wherein unidirectionally
Valve 16 can only be turned on by the direction of mechanical pump 15 to magnetic valve A13.
As shown in Fig. 2 drying box 10 is low boy cabinet structure, its casing is made up of heat-insulation layer 2 and shell 3, wherein shell 3
Positioned at the outside of heat-insulation layer 2, the material of heat-insulation layer 2 is certain thickness glass fibre cotton, and shell 3 is general steel plate housing, is protected
Warm layer 2 is bolted fixation with shell 3.Band guide rail glove stand 4 is provided with drying box 10, electric heating element 1, which is located at, to be put
On thing stand 4.It is chamber door 7 on the left of the casing of drying box 10, chamber door 7 is provided with compression molding heat-resistant silicon rubber elastic packing
Circle, and is provided with observation window on chamber door 7, is double glazing, interlayer vacuum-pumping.And air intake-exhaust hole 8 is also provided with casing.
Platinum resistance thermometer sensor, temperature transducer 5 and precision digital pressure gauge 6 are also equipped with the casing of drying box 10, wherein platinum resistance thermometer sensor, thermometric passes
Sensor 5 ensures to seal by packing seal, is convenient for changing.Platinum resistance thermometer sensor, temperature transducer 5 measures the environment temperature of drying box 10, surveys
Warm electric signal is sent into PLC Intelligent treatments, and by the comparison with design temperature, automatic controlled electric heating element 10 heats, so as to realize
Temperature is automatic, intelligent control.And precision digital pressure gauge 6 is when 10 hypotony of drying box, by controlling magnetic valve 12 to open
Helium is filled, improves pressure, ensures control climate.
A kind of MOX uranium dioxide preprocessing method of raw materials：
S1：Magnetic valve C12, magnetic valve A13 are closed, and magnetic valve B11 is opened, and mechanical pump 15, which starts, to be vacuumized；
S2：Magnetic valve B11 is closed after certain time, and magnetic valve C12, magnetic valve A13 are opened, and helium is passed through by magnetic valve C12
Gas.And so on operate 3 times, it is helium atmosphere that can protect in drying box 10.
S3：Magnetic valve B11, magnetic valve C12 are closed, and magnetic valve A13 is opened, and mechanical pump 15 makes gas be circulated in pipeline,
Gas after gas drying, dedusting device 14, mechanical pump 15, check valve 16, is returned and recycled in drying box 10 successively,
S4：Drying box 10 is provided with precision digital pressure gauge, when hypotony, is filled by controlling magnetic valve C12 to open
Helium, improve pressure.
Claims (10)
- A kind of 1. MOX uranium dioxide raw material preprocessing devices, it is characterised in that：Drying box (10) connects gas drying, dedusting device (14), gas drying, dedusting device (14) connection mechanical pump (15), mechanical pump (15) connection check valve (16), check valve (16) connection Magnetic valve A (13), magnetic valve A (13) connection drying box (10), wherein check valve (16) are all connected with magnetic valve with magnetic valve A (13) B (11), magnetic valve C (12), wherein check valve (16) can only be turned on by the direction of mechanical pump (15) to magnetic valve A (13).
- A kind of 2. MOX uranium dioxide raw material preprocessing devices according to claim 1, it is characterised in that：The drying Case (10) is low boy cabinet structure, and its casing includes heat-insulation layer (2) and shell (3), and wherein shell (3) is located at heat-insulation layer (2) It is outside；Band guide rail glove stand (4) is provided with drying box (10), electric heating element (1) is located on glove stand (4)；Dry It is chamber door (7) on the left of dry case (10) casing, chamber door (7) is provided with compression molding heat-resistant silicon rubber elastic seal ring；And in casing On be also provided with air intake-exhaust hole (8)；Platinum resistance thermometer sensor, temperature transducer (5) and accurate number are also equipped with drying box (10) casing Word pressure gauge (6)；Platinum resistance thermometer sensor, temperature transducer (5) measures drying box (10) environment temperature, and thermometric electric signal is sent into PLC intelligence Processing, pass through the comparison with design temperature, automatic controlled electric heating element (10) heating.
- A kind of 3. MOX uranium dioxide raw material preprocessing devices according to claim 2, it is characterised in that：The insulation Layer (2) material is glass fibre cotton.
- A kind of 4. MOX uranium dioxide raw material preprocessing devices according to claim 3, it is characterised in that：The shell (3) it is general steel plate housing.
- A kind of 5. MOX uranium dioxide raw material preprocessing devices according to claim 4, it is characterised in that：The insulation Layer (2) is bolted fixation with shell (3).
- A kind of 6. MOX uranium dioxide raw material preprocessing devices according to claim 5, it is characterised in that：The chamber door (7) it is provided with compression molding heat-resistant silicon rubber elastic seal ring.
- A kind of 7. MOX uranium dioxide raw material preprocessing devices according to claim 6, it is characterised in that：The chamber door (7) observation window is provided with, is double glazing, interlayer vacuum-pumping.
- A kind of 8. MOX uranium dioxide raw material preprocessing devices according to claim 7, it is characterised in that：The platinum heat Resistance temperature measurement sensor (5) ensures to seal by packing seal, is convenient for changing.
- 9. a kind of preprocess method for applying a kind of MOX uranium dioxide raw material preprocessing devices as claimed in claim 8, its It is characterised by：Comprise the following steps：S1：Magnetic valve C (12), magnetic valve A (13) are closed, and magnetic valve B (11) is opened, and mechanical pump (15), which starts, to be vacuumized；S2：Magnetic valve B (11) is closed after certain time, and magnetic valve C (12), magnetic valve A (13) are opened, logical by magnetic valve C (12) Enter helium；S3：Magnetic valve B (11), magnetic valve C (12) are closed, and magnetic valve A (13) is opened, and mechanical pump (15) makes gas be followed in pipeline Ring, gas after gas drying, dedusting device (14), mechanical pump (15), check valve (16), are returned and followed in drying box (10) successively Ring utilizes；S4：Drying box (10) is provided with precision digital pressure gauge, when hypotony, fills helium by controlling magnetic valve C12 to open Gas, improve pressure.
- A kind of 10. MOX uranium dioxide preprocessing method of raw materials according to claim 9, it is characterised in that：The S2 is past Operate 3 times again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710761721.8A CN107560336B (en) | 2017-08-30 | 2017-08-30 | MOX uranium dioxide raw material preprocessing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710761721.8A CN107560336B (en) | 2017-08-30 | 2017-08-30 | MOX uranium dioxide raw material preprocessing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107560336A true CN107560336A (en) | 2018-01-09 |
| CN107560336B CN107560336B (en) | 2019-06-18 |
Family
ID=60977877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710761721.8A Active CN107560336B (en) | 2017-08-30 | 2017-08-30 | MOX uranium dioxide raw material preprocessing device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107560336B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1449308A (en) * | 1973-09-03 | 1976-09-15 | Schuurink F A | Dryer |
| CN104596209A (en) * | 2014-11-27 | 2015-05-06 | 百顺松涛（天津）动力电池科技发展有限公司 | Baking and cooling integrated device for lithium ion battery production |
| CN205823587U (en) * | 2016-07-26 | 2016-12-21 | 芜湖博康新材料技术有限公司 | A kind of vacuum pump protection device |
-
2017
- 2017-08-30 CN CN201710761721.8A patent/CN107560336B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1449308A (en) * | 1973-09-03 | 1976-09-15 | Schuurink F A | Dryer |
| CN104596209A (en) * | 2014-11-27 | 2015-05-06 | 百顺松涛（天津）动力电池科技发展有限公司 | Baking and cooling integrated device for lithium ion battery production |
| CN205823587U (en) * | 2016-07-26 | 2016-12-21 | 芜湖博康新材料技术有限公司 | A kind of vacuum pump protection device |
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| Publication number | Publication date |
|---|---|
| CN107560336B (en) | 2019-06-18 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201022 Address after: 610000 South Tianfu Avenue 888, Huayang Street, Tianfu New District, Chengdu City, Sichuan Province Patentee after: CNNC 404 Chengdu nuclear technology engineering design and Research Institute Co.,Ltd. Address before: 508 box 1, box 732850, Lanzhou City, Gansu Province Patentee before: THE 404 COMPANY LIMITED, CHINA NATIONAL NUCLEAR Corp. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230807 Address after: 732850 Gansu Mining Area, Qilihe District, Lanzhou City, Gansu Province Patentee after: THE 404 COMPANY LIMITED, CHINA NATIONAL NUCLEAR Corp. Patentee after: CNNC 404 Chengdu nuclear technology engineering design and Research Institute Co.,Ltd. Address before: No. 888, South Tianfu Avenue, Huayang street, Tianfu New District, Chengdu, Sichuan 610000 Patentee before: CNNC 404 Chengdu nuclear technology engineering design and Research Institute Co.,Ltd. |
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| TR01 | Transfer of patent right |