CN201686500U - Microwave rotary kiln used for calcining chemical uranium concentrate - Google Patents
Microwave rotary kiln used for calcining chemical uranium concentrate Download PDFInfo
- Publication number
- CN201686500U CN201686500U CN2010201361409U CN201020136140U CN201686500U CN 201686500 U CN201686500 U CN 201686500U CN 2010201361409 U CN2010201361409 U CN 2010201361409U CN 201020136140 U CN201020136140 U CN 201020136140U CN 201686500 U CN201686500 U CN 201686500U
- Authority
- CN
- China
- Prior art keywords
- microwave
- rotary kiln
- burner hearth
- kiln burner
- microwave rotary
- 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.)
- Expired - Fee Related
Links
- 229910052770 Uranium Inorganic materials 0.000 title claims abstract description 14
- 239000012141 concentrate Substances 0.000 title claims abstract description 14
- 239000000126 substance Substances 0.000 title claims abstract description 14
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000001354 calcination Methods 0.000 title abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims description 12
- 239000003517 fume Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000009529 body temperature measurement Methods 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(2+);cobalt(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- IQWPWKFTJFECBS-UHFFFAOYSA-N O=[U](=O)O[U](=O)(=O)O[U](=O)=O Chemical compound O=[U](=O)O[U](=O)(=O)O[U](=O)=O IQWPWKFTJFECBS-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- MJLGNAGLHAQFHV-UHFFFAOYSA-N arsenopyrite Chemical compound [S-2].[Fe+3].[As-] MJLGNAGLHAQFHV-UHFFFAOYSA-N 0.000 description 1
- 229910052964 arsenopyrite Inorganic materials 0.000 description 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 1
- 229910052951 chalcopyrite Inorganic materials 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000009768 microwave sintering Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a microwave rotary kiln used for calcining chemical uranium concentrate, which mainly consists of a high-position bin, a feeding mechanism, a discharge mechanism, a microwave reaction cavity, a microwave rotary kiln hearth, a temperature measurement instrument, a microwave power source, a water-cooling system, a remote control system and the like. The microwave rotary kiln is mainly used for calcining chemical uranium concentrate, not only resolves problems that conventional calcining equipment is long in period, high in energy consumption, low in thermal efficiency, poor in product homogeneity, easy to cause under-calcined, over-calcined and the like, is uniform in microwave field distribution and strong in equipment stability, and is large-sized microwave equipment for continuous production in calcining process of the chemical uranium concentrate.
Description
One, technical field
The utility model relates to a kind of uranium chemical concentrate incinerating microwave rotary kiln that is used for, especially a kind of serialization, mass-producing be suitable for uranium chemical concentrate incinerating microwave heating equipment.
Two, background technology
At present, to adopt with the cylinder usually be half dynamic electric heating calcining kiln of representative to the uranium chemical concentrate calcining known of crowd.It is characterized in that by modes such as conduction, convection current, radiation make heat from the material outside to internal delivery.Because this equipment exists temperature distributing disproportionation even on same cross section, thereby causes this production method to exist the cycle long, the energy consumption height, thermo-efficiency is low, and the product homogeneity is poor, and phenomenons such as underburnt, burning easily take place, and brings processing difficulties to subsequent handling; And more crucial be that electric heating kiln calcining aut complete processing time length can cause nuclear radiation to threaten probability to increase.The calcining aut that provides as patent CN1319848A prepares in the uranous uranic oxide technological process, needs to rise to 700-900 ℃ with 300-500 ℃/hour by room temperature, and soaking time reaches 2-6 hour simultaneously.Therefore, the new-type calcining equipments of a kind of fast, safety of exploitation, less energy-consumption seems very important.
Microwave can add thermal material by the waste of energy selectivity in material inside as a kind of heating means of green high-efficient, has the incomparable advantages of conventional type of heating such as homogeneous heating, thermo-efficiency height, cleanliness without any pollution.Yet in the known microwave equipment, the household microwave oven through reequiping belongs to the intermittent type heating, and low, the poor repeatability of power density can't be carried out the mass-producing operation; For the high power high-temperature microwave equipment, although all carried out the research of this respect both at home and abroad, set up the microwave high-temperature agglomerating plant as Britain EA technology company, Canadian EMR microwave technology company has set up the Microwave Pretreatment device of chalcopyrite and arsenopyrite, but all there is the microwave field skewness, problem such as the equipment stopping property is bad.Microwave sintering apparatus as patent CN1718790A provides although can satisfy the preparation of tricobalt tetroxide, exists stopping property poor, and the reactor temperature field distribution is single, can't realize the transplantability calcining of uranium chemical concentrate.Therefore, can be used in the serialization of calcining uranium chemical concentrate at present, the high temperature microwave equipment of mass-producing remains blank.In addition, adopt natural air cooled or the air blast cooling mode is cooled off because microwave current reactor power origin system, no matter be natural air cooled so or air blast cooling all exists cooling efficiency low, cooling performance is poor, thereby causes that stabilization of equipment performance is poor, work-ing life short.
In summary,, make the commercial application scope of microwave narrower owing to lack safe, stable special microwave reactor, very not obvious to the supporting role of economy.The high temperature microwave reactor of therefore, research and development serialization, mass-producing has important effect for the development that leads following microwave at nuclear power industry.
Three, summary of the invention
The purpose of this utility model provides a kind of uranium chemical concentrate incinerating microwave rotary kiln that is used for.Exist the production cycle long at conventional electric heating rotary kiln; the energy consumption height; deficiencies such as microwave field skewness, the stabilization of equipment performance that drawback such as product homogeneity difference and existing microwave equipment exist is poor, work-ing life is short;, equipment stopping property big according to uranium chemical concentrate radiation hazradial bundle requires high singularity; this microwave rotary kiln that provides is a kind of uranium chemical concentrate calcining that is suitable for, and can realize the serialization of multistage temperature control, the high temperature microwave rotary kiln device of mass-producing.
The utility model is implemented by following technical scheme, and it comprises high hopper 1, feed mechanism 2, fume exhaust system 3, microwave reaction cavity 4, microwave rotary kiln burner hearth 5, discharging mechanism 6, tele-control system 7, microwave power source 8, water-cooling system 9, thermal insulation layer 10, temperature measurer 11.High hopper 1 places microwave reaction cavity 4 feed ends, its underpart is connected with feed mechanism 2, feed mechanism adopts the spiral way charging, feed auger links to each other with buncher by chain, microwave reaction cavity 4 is the reaction cavity of regular five-hedron, microwave power source 8 configuration water-cooling systems 9 be arranged in microwave reaction cavity 4 around, water-cooling system 9 adopts aluminium alloy annular water cooler to be assemblied on the microwave power source 8, microwave rotary kiln burner hearth 5 two ends are provided with the steel chuck, be equipped with gear on the chuck, gear is connected driving microwave rotary kiln burner hearth 5 by chain and rotates with buncher, microwave rotary kiln burner hearth 5 by the dress gradient be the 3-10 degree, discharging mechanism 6 is connected with microwave rotary kiln burner hearth 5 discharge ends, seal with graphite-seal ring between feed mechanism 2 and discharging mechanism 6 and the microwave rotary kiln burner hearth 5, the microwave rotary kiln burner hearth 5 outer thermal insulation layers 10 that cover, microwave rotary kiln burner hearth fume exhaust system 3, one end is fixedlyed connected with feed end, the other end is connected with smoke exhaust pipe, microwave rotary kiln burner hearth 5 discharge ends are equipped with temperature measurer 11, adopt independently PID (proportional-integral-differential) three root module temperature controls, temperature thermocouple adopts 3 built-up type thermometrics, and the microwave rotary kiln is by tele-control system 7 controls.
The high hopper of during work material being packed into, open the input and output material switch, regulate the feed auger rotating speed, material is delivered in the microwave reaction cavity continuously by feed auger, treat to open the microwave heating switch after material is covered with microwave rotary kiln burner hearth and reaches certain thickness, regulate microwave output power, make material rise to preset temperature respectively with certain temperature rise rate by room temperature, material passes through whole rotary kiln burner hearth lentamente by the rotary kiln feed end, discharge recovery by discharging mechanism after microwave treatment, flue gas is discharged by fume exhaust system.
Advantage of the present utility model and positively effect
(1) by to the simulation optimization in microwave reaction chamber, this microwave reaction cavity adopts the regular five-hedron design, makes to intersect the mutual coupling minimum between microwave source, and microwave field is more even in the cavity;
(2) microwave magnetron adopts aluminium alloy annular water-cooling pattern, improved equipment stability, prolonged work-ing life of equipment;
(3) adopt the graphite-seal ring sealing between microwave reaction cavity feeding-discharging mechanism and the burner hearth, guaranteed the stopping property of burner hearth;
(4) based on microwave " body heating " characteristic, make the whole thermally equivalent of material, product composition and particle diameter are even, and be with short production cycle;
(5) the microwave reaction cavity is by PLC tele-control system control, avoided microwave to reveal the injury that may cause human body.
Four, description of drawings
Fig. 1 is that the utility model is formed structure iron, and among the figure, 1 is high hopper, and 2 is feed mechanism, and 3 is fume exhaust system, 4 is the microwave reaction cavity, and 5 is microwave rotary kiln burner hearth, and 6 is discharging mechanism, and 7 is tele-control system, 8 is microwave power source, and 9 is water-cooling system, and 10 is thermal insulation layer, and 11 is temperature measurer.
Five, embodiment
By structure shown in Figure 1, it comprises high hopper 1, feed mechanism 2, fume exhaust system 3, microwave reaction cavity 4, microwave rotary kiln burner hearth 5, discharging mechanism 6, tele-control system 7, microwave power source 8, water-cooling system 9, thermal insulation layer 10, temperature measurer 11.High hopper 1 places microwave reaction cavity 4 feed ends, its underpart is connected with feed mechanism 2, feed mechanism adopts the spiral way charging, feed auger links to each other with buncher by chain, microwave reaction cavity 4 is the reaction cavity of regular five-hedron, microwave power source 8 configuration water-cooling systems 9 be arranged in microwave reaction cavity 4 around, water-cooling system 9 adopts aluminium alloy annular water cooler to be assemblied on the microwave power source 8, microwave rotary kiln burner hearth 5 two ends are provided with the steel chuck, be equipped with gear on the chuck, gear is connected driving microwave rotary kiln burner hearth 5 by chain and rotates with buncher, microwave rotary kiln burner hearth 5 by the dress gradient be the 3-10 degree, discharging mechanism 6 is connected with microwave rotary kiln burner hearth 5 discharge ends, seal with graphite-seal ring between feed mechanism 2 and discharging mechanism 6 and the microwave rotary kiln burner hearth 5, the microwave rotary kiln burner hearth 5 outer thermal insulation layers 10 that cover, microwave rotary kiln burner hearth fume exhaust system 3, one end is fixedlyed connected with feed end, the other end is connected with smoke exhaust pipe, microwave rotary kiln burner hearth 5 discharge ends are equipped with temperature measurer 11, adopt independently PID (proportional-integral-differential) three root module temperature controls, temperature thermocouple adopts 3 built-up type thermometrics, and the microwave rotary kiln is by tele-control system 7 controls.
Claims (1)
1. one kind is used for uranium chemical concentrate incinerating microwave rotary kiln, it is characterized in that: it comprises high hopper (1), feed mechanism (2), fume exhaust system (3), microwave reaction cavity (4), microwave rotary kiln burner hearth (5), discharging mechanism (6), tele-control system (7), microwave power source (8), water-cooling system (9), thermal insulation layer (10), temperature measurer (11), high hopper (1) places microwave reaction cavity (4) feed end, its underpart is connected with feed mechanism (2), feed mechanism adopts the spiral way charging, feed auger links to each other with buncher by chain, microwave reaction cavity (4) is a regular five-hedron, microwave power source (8) configuration water-cooling system (9) be arranged in microwave reaction cavity (4) around, water-cooling system (9) adopts aluminium alloy annular water cooler to be assemblied on the microwave power source (8), microwave rotary kiln burner hearth (5) two ends are provided with the steel chuck, the centre puts and is equipped with gear, gear is connected driving microwave rotary kiln burner hearth (5) by chain and rotates with buncher, the installation gradient of microwave rotary kiln burner hearth (5) is the 3-10 degree, discharging mechanism (6) is connected with microwave rotary kiln burner hearth (5) discharge end, seal with graphite-seal ring between feed mechanism (2) and discharging mechanism (6) and the microwave rotary kiln burner hearth (5), the outer thermal insulation layer (10) that covers of microwave rotary kiln burner hearth (5), microwave rotary kiln burner hearth fume exhaust system (3) one ends are fixedlyed connected with feed end, the other end is connected with smoke exhaust pipe, microwave rotary kiln burner hearth (5) discharge end is equipped with temperature measurer (11), adopt independently PID three root module temperature controls, temperature thermocouple adopts 3 built-up type thermometrics, and the microwave rotary kiln is by tele-control system (7) control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201361409U CN201686500U (en) | 2010-03-22 | 2010-03-22 | Microwave rotary kiln used for calcining chemical uranium concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201361409U CN201686500U (en) | 2010-03-22 | 2010-03-22 | Microwave rotary kiln used for calcining chemical uranium concentrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201686500U true CN201686500U (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201361409U Expired - Fee Related CN201686500U (en) | 2010-03-22 | 2010-03-22 | Microwave rotary kiln used for calcining chemical uranium concentrate |
Country Status (1)
| Country | Link |
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| CN (1) | CN201686500U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102326858A (en) * | 2011-05-26 | 2012-01-25 | 云南昆船瑞升烟草加工新技术有限责任公司 | Roller type tobacco stalk continuous microwave expansion device |
| CN102419086A (en) * | 2011-12-20 | 2012-04-18 | 湖南省中晟热能科技有限公司 | Microwave and electricity hybrid heating high-temperature rotary kiln |
| CN106211405A (en) * | 2016-07-08 | 2016-12-07 | 同济大学 | A kind of tunnel type band revolute function multi-die microwave resonant chamber |
| CN109592714A (en) * | 2018-11-19 | 2019-04-09 | 中核二七二铀业有限责任公司 | A kind of method of uranyl nitrate thermal denitration preparation high activity orange oxide |
| WO2020234075A1 (en) * | 2019-05-21 | 2020-11-26 | Basf Se | Process for performing endothermic reactions, and reaction vessel suitable therefore |
-
2010
- 2010-03-22 CN CN2010201361409U patent/CN201686500U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102326858A (en) * | 2011-05-26 | 2012-01-25 | 云南昆船瑞升烟草加工新技术有限责任公司 | Roller type tobacco stalk continuous microwave expansion device |
| CN102419086A (en) * | 2011-12-20 | 2012-04-18 | 湖南省中晟热能科技有限公司 | Microwave and electricity hybrid heating high-temperature rotary kiln |
| CN106211405A (en) * | 2016-07-08 | 2016-12-07 | 同济大学 | A kind of tunnel type band revolute function multi-die microwave resonant chamber |
| CN106211405B (en) * | 2016-07-08 | 2019-08-06 | 同济大学 | A kind of tunnel type band revolute function multi-die microwave resonant chamber |
| CN109592714A (en) * | 2018-11-19 | 2019-04-09 | 中核二七二铀业有限责任公司 | A kind of method of uranyl nitrate thermal denitration preparation high activity orange oxide |
| WO2020234075A1 (en) * | 2019-05-21 | 2020-11-26 | Basf Se | Process for performing endothermic reactions, and reaction vessel suitable therefore |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20130322 |