CN108057411A - A kind of potassium nitrate reaction kettle - Google Patents
A kind of potassium nitrate reaction kettle Download PDFInfo
- Publication number
- CN108057411A CN108057411A CN201810050092.2A CN201810050092A CN108057411A CN 108057411 A CN108057411 A CN 108057411A CN 201810050092 A CN201810050092 A CN 201810050092A CN 108057411 A CN108057411 A CN 108057411A
- Authority
- CN
- China
- Prior art keywords
- fixed
- steel column
- cylinder
- cabinet
- servomotor
- 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.)
- Pending
Links
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 19
- 235000010333 potassium nitrate Nutrition 0.000 title claims abstract description 12
- 239000004323 potassium nitrate Substances 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00132—Controlling the temperature using electric heating or cooling elements
- B01J2219/00135—Electric resistance heaters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Commercial Cooking Devices (AREA)
Abstract
The invention discloses a kind of potassium nitrate reaction kettles,Include cabinet,Servomotor,Insulating layer,Cylinder,Cylinder frame,Thin heating wire,Thick heating wire,Driving motor,Casing,First steel column,Main paddle,Feed pipe,Discharge nozzle,Torque spring,Steel wire,Steel wire ring,Handle,Control panel,Snap-gauge,Second steel column and secondary paddle,The cabinet is internally provided with cylinder frame,The cylinder lower portion is fixed with cylinder,The bottom of cabinet bulk is fixed with servomotor,Output shaft one end of the servomotor is fixedly connected by shaft coupling with the second steel column,And second steel column pass through bottom of cylinder,Secondary paddle is fixed on the outside of second steel column,The reaction kettle,Under being driven by the rotation of servomotor and the output shaft of driving motor,Two stirring rods mutually rotate,Better heating effect can more be reached with potassium nitrate contact area.
Description
Technical field
The present invention relates to reaction kettle technical fields, and in particular to a kind of potassium nitrate reaction kettle.
Background technology
At present, the use to reaction kettle, portioned product are be unable to do without in chemical industry of chemical fertilizer process of producing product in the domestic market
It needs to be heated at high temperature in a kettle, previous mode of heating is that heating tube is set to realize heating, profit outside reaction kettle
Conduction oil is heated with heating tube, then heat is transferred to achieve the purpose that heat reaction kettle to reaction kettle by conduction oil.
But the mode that outside is heated when producing sometimes, heating tube is made to be partially exposed in air, easily burns out heating tube,
Need frequently to replace heating tube to ensure to react required temperature, while heating effect is uneven, reduces product purity in reaction kettle,
Production cost is added, has seriously affected being normally carried out for production.
The content of the invention
The purpose of the invention is to overcome the deficiencies in the prior art, and provide a kind of nitric acid nak response of homogeneous heating
Kettle, including cabinet, servomotor, insulating layer, cylinder, cylinder frame, thin heating wire, thick heating wire, driving motor, casing,
One steel column, main paddle, feed inlet, discharge port, torque spring, steel wire, steel wire ring, handle, secondary paddle, control panel, card
Plate and the second steel column, it is characterised in that：Cylinder frame is fixed with inside the cabinet, the cylinder lower portion is fixed with circle
Cylinder, the bottom of cabinet bulk are fixed with servomotor, and output shaft one end of the servomotor passes through shaft coupling and the second steel column one
End is fixedly connected, and the second steel column other end passes through bottom of cylinder, and secondary paddle is fixed on the outside of second steel column, described
Cylinder frame inner wall is evenly arranged with thick heating wire, and the cylinder frame roof is fixed with casing, and described sleeve pipe is away from servo electricity
One end of machine is fixedly connected with cabinet, and the cabinet top center is fixed with driving motor, and the cabinet top center offers
Through hole, output shaft one end of the driving motor is fixedly connected by shaft coupling with first steel column one end, and the first steel column is another
End sequentially passes through through hole and casing, is fixed with main paddle on the outside of first steel column, in the main paddle and secondary paddle
Portion is both provided with thin heating wire, and second steel column is located at immediately below the first steel column, and the bottom of cylinder is fixed with discharge nozzle, institute
It states discharge nozzle and is internally provided with snap-gauge, the snap-gauge is rotatablely connected by torque spring and discharge nozzle, is opened on the outside of the discharge nozzle
Equipped with small through hole, and small through hole is internally provided with steel wire, and the steel wire both ends are fixedly connected respectively at snap-gauge with steel wire ring, described
Cylinder frame roof is fixed with feed pipe, and described feed pipe one end passes through cylinder through cabinet top, the feed pipe other end
Frame is simultaneously extended in cylinder, and the cabinet one side is fixed with handle and control panel, and the control panel is electrically connected servo
Motor and driving motor.
Preferably, the bottom of cabinet bulk is fixed with non-slip mat.
Preferably, insulating layer is installed on the outside of the cabinet.
Preferably, the handle is hard material component.
The beneficial effects of the invention are as follows：The reaction kettle, internal main paddle and secondary paddle mutually wind and do not contact,
Under being driven by the rotation of servomotor and the output shaft of driving motor, two stirring rods mutually rotate, and can be connect with potassium nitrate
Contacting surface product more reaches better heating effect, and discharge nozzle is internally provided with snap-gauge, and snap-gauge passes through in torque spring and discharge nozzle
Wall is rotatablely connected, and offers small through hole on the outside of discharge nozzle, and steel wire is fixedly connected through small through hole with snap-gauge and steel wire ring, hand
Dynamic pull-up steel wire ring, snap-gauge can be opened, and material falls at this time, when closing discharge port, snap-gauge can under the action of torque spring bullet
Original position is gone back to, material will not be revealed.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the discharge nozzle internal structure schematic diagram of the present invention；
Fig. 3 is the reaction kettle front view of the present invention.
In figure：1st, cabinet；2nd, servomotor；3rd, insulating layer；4th, cylinder；5th, cylinder frame；6th, thin heating wire；7th, thick electric heating
Silk；8th, driving motor；9th, casing；10th, steel column；11st, auger bar；12nd, feed pipe；13rd, discharge nozzle；14th, torque spring；
15th, steel wire；16th, steel wire ring；17th, handle；18th, secondary paddle；19th, control panel；20th, snap-gauge；21st, non-slip mat；22nd, the second steel
Column.
Specific embodiment
Any feature disclosed in this specification, unless specifically stated, can be equivalent by other or with similar purpose
Alternative features are replaced.I.e., unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
.
A kind of potassium nitrate reaction kettle as shown in Figure 1-Figure 3, including cabinet 1, servomotor 2, insulating layer 3, cylinder 4, circle
Cylinder frame 5, thin heating wire 6, driving motor 8, casing 9, the first steel column 10, main paddle 11, feed inlet 12, go out thick heating wire 7
Material mouth 13, torque spring 14, steel wire 15, steel wire ring 16, handle 17, secondary paddle 18, control panel 19,20 and second steel of snap-gauge
Column 22 is fixed with cylinder frame 5 inside the cabinet 1, cylinder 4,1 bottom of cabinet is fixed with inside the cylinder frame 5
Servomotor 2 is fixed with, output shaft one end of the servomotor 2 is fixedly connected by shaft coupling with 22 one end of the second steel column,
Second steel column, 22 other end passes through 4 bottom of cylinder, and 22 outside of the second steel column is fixed with secondary paddle 18, the cylinder
5 inner wall of frame is evenly arranged with thick heating wire 7, and 5 top of cylinder frame is fixed with casing 9, and described sleeve pipe 9 is away from servo electricity
One end of machine 2 is fixedly connected with cabinet 1, and 1 top center of cabinet is fixed with driving motor 8, and 1 top center of cabinet is opened
Equipped with through hole, output shaft one end of the driving motor 8 is fixedly connected by shaft coupling with 10 one end of the first steel column, and the first steel
10 other end of column sequentially passes through through hole and casing 9, and 10 outside of the first steel column is fixed with main paddle 11, the main paddle
11 and secondary paddle 18 inside be both provided with thin heating wire 6, second steel column 22 is located at 10 underface of the first steel column, the circle
4 bottoms of cylinder are fixed with discharge nozzle 13, and the discharge nozzle 13 is internally provided with snap-gauge 20, the snap-gauge 20 by torque spring 14 with
Discharge nozzle 13 is rotatablely connected, and 13 outside of discharge nozzle offers small through hole, and small through hole is internally provided with steel wire 15, the steel
15 both ends of silk are fixedly connected respectively at snap-gauge 20 with steel wire ring 16, and 5 top of the cylinder frame is fixed with feed pipe 12, it is described into
For 12 one end of expects pipe through 1 top of cabinet, 12 other end of feed pipe is through cylinder frame 5 and extends in cylinder 4, the cabinet
1 one side of body is fixed with handle 17 and control panel 19, and the control panel 19 is electrically connected servomotor 2 and driving motor 8.Institute
It states 1 bottom of cabinet and is fixed with non-slip mat 21.1 outside of cabinet is equipped with insulating layer 3.The handle 17 is hard material structure
Part.
The operation principle of present embodiment is：The reaction kettle shares driving motor and servomotor two, is working
When, by control panel, driving motor and servomotor can rotate jointly, and output shaft one end of servomotor 2 passes through shaft coupling
It is fixedly connected with the second steel column 22, and the second steel column 22, through 4 bottom of cylinder, 22 outside of the second steel column is fixed with secondary paddle
18, output shaft one end of driving motor 8 is fixedly connected by shaft coupling with the first steel column 10, and the first steel column 10 sequentially pass through it is logical
Hole and casing 9, the outside of the first steel column 10 are fixed with main paddle 11, and 22 outside of the second steel column is fixed with secondary paddle 18, and the
Two steel columns 22 are located at immediately below the first steel column 10, and are both provided with thin heating wire 6 inside main paddle 11 and secondary paddle 18,
By control panel 19 thin heating wire 6 is made to generate heat, fully contacted during rotation with potassium nitrate, reach internal heating, circle
Cylinder frame inner wall is evenly arranged with thick heating wire 7, by control panel 19 thick heating wire 7 is made to generate heat, achievees the effect that external heat,
An external heat is better in such one.
The invention is not limited in foregoing specific embodiments.The present invention, which expands to, any in the present specification to be disclosed
The step of new feature or any new combination and any new method or process disclosed or any new combination.
Claims (4)
1. a kind of potassium nitrate reaction kettle, including cabinet（1）, servomotor（2）, insulating layer（3）, cylinder（4）, cylinder frame（5）、
Thin heating wire（6）, thick heating wire（7）, driving motor（8）, casing（9）, the first steel column（10）, main paddle（11）, feed inlet
（12）, discharge port（13）, torque spring（14）, steel wire（15）, steel wire ring（16）, handle（17）, secondary paddle（18）, control plane
Plate（19）, snap-gauge（20）With the second steel column（22）, it is characterised in that：The cabinet（1）Inside is fixed with cylinder frame（5）, institute
State cylinder frame（5）Inside is fixed with cylinder（4）, the cabinet（1）Bottom is fixed with servomotor（2）, the servomotor
（2）Output shaft one end pass through shaft coupling and the second steel column（22）One end is fixedly connected, second steel column（22）The other end is worn
Cross cylinder（4）Bottom, second steel column（22）Outside is fixed with secondary paddle（18）, the cylinder frame（5）Inner wall is uniform
It is provided with thick heating wire（7）, the cylinder frame（5）Top is fixed with casing（9）, described sleeve pipe（9）Away from servomotor（2）
One end and cabinet（1）It is fixedly connected, the cabinet（1）Top center is fixed with driving motor（8）, the cabinet（1）Top
Center offers through hole, the driving motor（8）Output shaft one end pass through shaft coupling and the first steel column（10）One end, which is fixed, to be connected
It connects, and the first steel column（10）The other end sequentially passes through through hole and casing（9）, first steel column（10）Outside is fixed with main stirring
Leaf（11）, the main paddle（11）With secondary paddle（18）Inside is both provided with thin heating wire（6）, second steel column（22）
Positioned at the first steel column（10）Underface, the cylinder（4）Bottom is fixed with discharge nozzle（13）, the discharge nozzle（13）Inside is set
There is snap-gauge（20）, the snap-gauge（20）Pass through torque spring（14）With discharge nozzle（13）Rotation connection, the discharge nozzle（13）Outside
Side offers small through hole, and small through hole is internally provided with steel wire（15）, the steel wire（15）Both ends are respectively at snap-gauge（20）And steel
Silk ring（16）It is fixedly connected, the cylinder frame（5）Top is fixed with feed pipe（12）, the feed pipe（12）One end passes through cabinet
Body（1）Top, the feed pipe（12）The other end passes through cylinder frame（5）And extend to cylinder（4）It is interior, the cabinet（1）One
Side is fixed with handle（17）And control panel（19）, the control panel（19）It is electrically connected servomotor（2）And driving motor
（8）.
2. a kind of potassium nitrate reaction kettle according to claim 1, it is characterised in that：The cabinet（1）Bottom is fixed with anti-
Skidding（21）.
3. a kind of potassium nitrate reaction kettle according to claim 1, it is characterised in that：The cabinet（1）Outside is equipped with guarantor
Warm layer（3）.
4. a kind of potassium nitrate reaction kettle according to claim 1, it is characterised in that：The handle（17）For hard material structure
Part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810050092.2A CN108057411A (en) | 2018-01-18 | 2018-01-18 | A kind of potassium nitrate reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810050092.2A CN108057411A (en) | 2018-01-18 | 2018-01-18 | A kind of potassium nitrate reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108057411A true CN108057411A (en) | 2018-05-22 |
Family
ID=62141820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810050092.2A Pending CN108057411A (en) | 2018-01-18 | 2018-01-18 | A kind of potassium nitrate reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108057411A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05293349A (en) * | 1992-04-16 | 1993-11-09 | Japan Organo Co Ltd | Slow and rapid agitating tank |
| CN204275979U (en) * | 2014-12-11 | 2015-04-22 | 华星（宿迁）化学有限公司 | Age resistor production reactor |
| CN204338147U (en) * | 2014-10-09 | 2015-05-20 | 广东新展化工新材料有限公司 | A kind of reactor heater for the production of add-on type liquid silicon rubber |
| CN205435743U (en) * | 2016-03-28 | 2016-08-10 | 苏州美嘉汇食品科技有限公司 | Reaction kettle |
| CN105854780A (en) * | 2016-06-06 | 2016-08-17 | 无锡市翱宇特新科技发展有限公司 | Chemical reaction kettle with adjustable stirring temperature |
| CN205495592U (en) * | 2016-04-14 | 2016-08-24 | 天津渤海职业技术学院 | Area adds chemical industry reation kettle of hot type stirring rake |
| CN205593316U (en) * | 2016-03-10 | 2016-09-21 | 林晓婷 | Ammonium paratungstate crystal quick drying device |
| CN205761139U (en) * | 2016-05-25 | 2016-12-07 | 黄冈银河阿迪药业有限公司 | A kind of for metronidazole processing reactor |
| CN106390895A (en) * | 2016-10-17 | 2017-02-15 | 无锡市日升化工有限公司 | Chemical reaction kettle capable of smashing and stirring chemical materials |
| CN106475032A (en) * | 2016-11-18 | 2017-03-08 | 广西大学 | A kind of Chemical Manufacture pair stirred autoclaves |
| CN106823917A (en) * | 2017-01-07 | 2017-06-13 | 苏州兰灵医药科技有限公司 | A kind of heating stirring kettle of paste Chinese medicine |
| CN107088378A (en) * | 2017-06-27 | 2017-08-25 | 阜宁县特种油品有限公司 | A kind of quantitative deployment device of lubricating oil |
| CN206676363U (en) * | 2017-04-18 | 2017-11-28 | 现代（三河）工程塑料有限公司 | A kind of highly effective reaction kettle with double-stirring machine structure |
| CN206715769U (en) * | 2017-03-06 | 2017-12-08 | 杨高杰 | A kind of fodder mixing machine uniformly heated |
| CN208115747U (en) * | 2018-01-18 | 2018-11-20 | 江西金利达钾业有限责任公司 | A kind of potassium nitrate reaction kettle |
-
2018
- 2018-01-18 CN CN201810050092.2A patent/CN108057411A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05293349A (en) * | 1992-04-16 | 1993-11-09 | Japan Organo Co Ltd | Slow and rapid agitating tank |
| CN204338147U (en) * | 2014-10-09 | 2015-05-20 | 广东新展化工新材料有限公司 | A kind of reactor heater for the production of add-on type liquid silicon rubber |
| CN204275979U (en) * | 2014-12-11 | 2015-04-22 | 华星（宿迁）化学有限公司 | Age resistor production reactor |
| CN205593316U (en) * | 2016-03-10 | 2016-09-21 | 林晓婷 | Ammonium paratungstate crystal quick drying device |
| CN205435743U (en) * | 2016-03-28 | 2016-08-10 | 苏州美嘉汇食品科技有限公司 | Reaction kettle |
| CN205495592U (en) * | 2016-04-14 | 2016-08-24 | 天津渤海职业技术学院 | Area adds chemical industry reation kettle of hot type stirring rake |
| CN205761139U (en) * | 2016-05-25 | 2016-12-07 | 黄冈银河阿迪药业有限公司 | A kind of for metronidazole processing reactor |
| CN105854780A (en) * | 2016-06-06 | 2016-08-17 | 无锡市翱宇特新科技发展有限公司 | Chemical reaction kettle with adjustable stirring temperature |
| CN106390895A (en) * | 2016-10-17 | 2017-02-15 | 无锡市日升化工有限公司 | Chemical reaction kettle capable of smashing and stirring chemical materials |
| CN106475032A (en) * | 2016-11-18 | 2017-03-08 | 广西大学 | A kind of Chemical Manufacture pair stirred autoclaves |
| CN106823917A (en) * | 2017-01-07 | 2017-06-13 | 苏州兰灵医药科技有限公司 | A kind of heating stirring kettle of paste Chinese medicine |
| CN206715769U (en) * | 2017-03-06 | 2017-12-08 | 杨高杰 | A kind of fodder mixing machine uniformly heated |
| CN206676363U (en) * | 2017-04-18 | 2017-11-28 | 现代（三河）工程塑料有限公司 | A kind of highly effective reaction kettle with double-stirring machine structure |
| CN107088378A (en) * | 2017-06-27 | 2017-08-25 | 阜宁县特种油品有限公司 | A kind of quantitative deployment device of lubricating oil |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180522 |