CN209188735U - A kind of reaction kettle group - Google Patents
A kind of reaction kettle group Download PDFInfo
- Publication number
- CN209188735U CN209188735U CN201821627768.1U CN201821627768U CN209188735U CN 209188735 U CN209188735 U CN 209188735U CN 201821627768 U CN201821627768 U CN 201821627768U CN 209188735 U CN209188735 U CN 209188735U
- Authority
- CN
- China
- Prior art keywords
- reaction kettle
- circulation circuit
- circulation
- main pipeline
- heat
- 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.)
- Active
Links
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model belongs to petrochemical materials production equipment technology, and in particular to a kind of reaction kettle group.For the not high deficiency of existing reaction kettle capacity usage ratio, the utility model adopts the following technical solution: a kind of reaction kettle group, including the first reaction kettle, second reaction kettle and heat circulating system, the heat circulating system includes heating source, flow through the main pipeline of heating source, the logical control system closed in the first circulation circuit and second circulation circuit and control first circulation circuit that are connected respectively with main pipeline and second circulation circuit, the first circulation circuit includes the first circulation pipeline being connected with main pipeline and the first heating coil on the first reaction kettle, the second circulation circuit includes the second circulation pipeline being connected with main pipeline and the second heating coil on the second reaction kettle.The beneficial effect of the reaction kettle group of the utility model is: multiple reaction kettles share a heating system, reduce the loss for waiting heat in heating process.
Description
Technical field
The utility model belongs to petrochemical materials production equipment technology, and in particular to a kind of reaction kettle group.
Background technique
Reaction kettle is a kind of reaction vessel common in Chemical Manufacture, is widely used in petroleum, chemical industry, rubber, pesticide, dye
Material, medicine, food, for completing the technical process such as vulcanization, nitrification, hydrogenation, hydrocarbonylation, polymerization, condensation.In a kettle, to add
Fast response speed reinforces mixing and strengthens mass transfer or heat-transfer effect etc., and reaction kettle is typically provided with agitating device.Agitating device includes
Blender and agitating shaft.However, the blender position of the agitating device of existing reaction kettle is unadjustable, cannot in stirring liter
Drop, stirring are not enough.
Meanwhile in process of production, due to process requirements, it is often necessary to be heated to the reaction solution in reaction kettle.But
It is that heating always discontinuously carries out, and in waiting process, heat is not used, and is lost in vain, causes energy dissipation, energy benefit
It is not high with rate.
Utility model content
The utility model provides a kind of reaction kettle group for the not high deficiency of existing reaction kettle capacity usage ratio, can will be hot
Amount is distributed between reaction kettle, the heating waiting time is reduced, to improve capacity usage ratio.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of reaction kettle group, including the first reaction
Kettle, the second reaction kettle and heat circulating system, the heat circulating system include heating source, the main pipeline for flowing through heating source, difference
The first circulation circuit and second circulation circuit and control first circulation circuit that are connected with main pipeline and second circulation circuit are logical
The control system closed, the first circulation circuit include the first circulation pipeline being connected with main pipeline and are set on the first reaction kettle
The first heating coil, the second circulation circuit include the second circulation pipeline being connected with main pipeline and be set to the second reaction kettle
On the second heating coil.
The reaction kettle group of the utility model, multiple reaction kettles share a heat circulating system, when one of reaction kettle not
When needing to heat, heat circulating system can heat another reaction kettle, to reduce the heat stream waited in heating process
It loses, improves capacity usage ratio.In scheme, the quantity of reaction kettle can also be three or more.
As an improvement, the control system include controller and be controlled by controller and be respectively arranged on first circulation circuit and
Solenoid valve on second circulation circuit.Using controller and solenoid valve, it can be achieved that automatically controlling.
As an improvement, first heating coil is set in the first reaction kettle, it is anti-that second heating coil is set to second
It answers in kettle.Compared to being set to outside reaction kettle, heating coil is set in reaction kettle, and faster, and heat losses are less for heating speed.
As an improvement, the liquid in the first circulation circuit and second circulation circuit is water.When heating coil is installed on
In reaction kettle, using water as thermal medium, compared to using media such as oil, even if heating coil is revealed, also hardly pollution is anti-
Answer liquid.
As an improvement, the heating source includes water tank, heat-exchanger rig and air energy unit, the heat-exchanger rig is arranged in water
In case, the air energy machine is mounted on outside water tank and is connected with heat-exchanger rig.Air energy unit is by heat-exchanger rig to water tank
Interior water is heated.
As an improvement, the main pipeline is equipped with filter and circulating pump.Filter is for the impurity in filter pipeline.It follows
Ring pumps up pressurization, for providing flow dynamic.
As an improvement, being equipped with insulating layer outside the main pipeline, first circulation pipeline and second circulation pipeline.Work as heating
When, often heat dissipation capacity is big for main pipeline etc., so that heat is on the way lost increasing, easily makes pipeline oxidization, in the appearances bread such as main pipeline
Installation thermal insulation casing is covered as insulating layer, it is possible to reduce thermal loss caused by heat exchange.
As an improvement, first reaction kettle includes reaction kettle body, the reaction kettle body includes the circle being detachably connected
Cylinder and upper cover, the upper lid are equipped with stirring power device and agitating device, and the stirring power device includes stirring motor
And transmission component, the agitating device include the agitating shaft and blender driven by stirring motor, the stirring power device is also
Including the rotation seat being connected with transmission component, lifting through-hole is opened up in the rotation seat, the agitating shaft is located in lifting through-hole,
The rotation seat has elevation positioning structure so that agitating shaft can be rotated with rotation seat with stirring between centers；The agitating device is by rising
Power mechanism driving is dropped.By elevation positioning structure, agitating device can be rotated together with rotation seat, by elevation positioning structure with
And the lifting through-hole in rotation seat, agitating device can also rotation seat rotate when go up and down so that blender can in reaction kettle more
Multiposition is stirred, and stirring is more abundant, and temperature rises faster, more efficient.
As an improvement, the rotation seat is equipped with positioning column, location hole, the positioning column positioning are opened up on the blender
In location hole, the positioning column and positioning hole form the elevation positioning structure.Using positioning column and positioning hole as liter
Location structure drops, and processing is relatively easy to.
As an improvement, the positioning column is at least two and is circumferentially evenly distributed with, so that mixing component uniform force.
As an improvement, the upper lid is equipped with mounting base, the stirring power device is set in mounting base, the rotation seat
Across mounting base, anti-fall plate is equipped with above the rotation seat.In general, motor, rotation seat etc. are set to the upper end of reaction kettle, setting is anti-
Plate is fallen, so that rotation seat is without departing from falling.
As an improvement, the rotation seat is substantially in inverted T-shaped, bearing is equipped between the rotation seat and mounting base.Rotation seat is big
It causes to be in inverted T-shaped, convenient for connection installation；It is equipped with bearing between rotation seat and mounting base, reduces rotary resistance, noise, is promoted and uses the longevity
Life.Bearing can use self-aligning thrust roller bearing.
As an improvement, affixed positioning seat below the rotation seat, the positioning seat diameter is greater than rotation seat and bearing, described
Positioning column is fixed on positioning seat.Certainly, in other schemes, can no setting is required positioning seat, rotation seat is directly connected with blender.
As an improvement, the upper lid is equipped with stirring port, the stirring port and positioning seat rotary seal.
As an improvement, the rotation seat has positioning convex portion, axially extending positioning groove, institute are opened up on the agitating shaft
It states positioning convex portion to be positioned in positioning groove, the positioning convex portion and positioning groove form the elevation positioning structure.
As an improvement, the lifting drive mechanism includes power cylinder.Power cylinder can be cylinder or hydraulic cylinder.Certainly,
In its scheme, lifting drive mechanism can also use motor.
As an improvement, the affixed lifter plate of the output rod of the power cylinder, the agitating shaft and lifter plate are affixed.Power cylinder
It is connected by lifter plate with output rod, so that mixing component lifting is more stable.
As an improvement, the lifter plate and stirring between centers are at least provided with bearing, the agitating shaft upper end is equipped with anti-fall nut.
Anti-fall nut is set, and lifting assembly does not fall out disengaging.Bearing can use self-aligning thrust roller bearing.
The beneficial effect of the reaction kettle group of the utility model is: multiple reaction kettles share a heating system, reduce and wait
The loss of heat in heating process.Further, lifting assembly can not only be rotated with rotation seat, can also rotation while liter
Drop, stirring is more abundant, and temperature rises faster and more uniform temperature, reaction efficiency are higher.
Detailed description of the invention
Fig. 1 is the structural block diagram of the reaction kettle group of the utility model embodiment one.
Fig. 2 is the schematic perspective view of first reaction kettle of the utility model embodiment one.
Fig. 3 is the left view of first reaction kettle of the utility model embodiment one.
Fig. 4 be in Fig. 3 A-A to cross-sectional view.
Fig. 5 is that the schematic perspective view of first reaction kettle of the utility model embodiment one (hides the first reaction kettle
Body).
Fig. 6 is the left view (hiding the first reaction kettle body) of first reaction kettle of the utility model embodiment one.
Fig. 7 is the cross-sectional view of B-B direction in Fig. 6.
Fig. 8 is the structural schematic diagram of the rotation seat of first reaction kettle of the utility model embodiment one.
Fig. 9 is the structural schematic diagram of the positioning seat of first reaction kettle of the utility model embodiment one.
In figure, 01, heat circulating system, A, water tank, B, heat-exchanger rig, C, air energy unit, D, main pipeline, E, first circulation
Pipeline, F, the first heating coil, G, second circulation pipeline, H, the second heating coil, I, solenoid valve, J, filter, K, circulating pump；
02, the first reaction kettle,
03, the second reaction kettle,
1, reaction kettle body, 11, circular cylinder body, 12, upper cover；
2, stirring power device, 21, stirring motor, 22, transmission component, 23, rotation seat, 24, positioning seat, 25, positioning column,
26, anti-fall plate；
3, agitating device, 31, agitating shaft, 32, blender；
4, mounting base；
5, lifting drive mechanism, 51, power cylinder, 52, lifter plate, 53, anti-fall nut；
RB, bearing.
Specific embodiment
Below with reference to the attached drawing of the utility model embodiment, the technical solution of the utility model embodiment is explained and
Illustrate, but following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode,
Those skilled in the art's other embodiments obtained without making creative work, belong to the utility model
Protection scope.
Referring to Fig. 1 to Fig. 9, a kind of reaction kettle group, including the first reaction kettle, the second reaction kettle and heat circulating system, institute
Stating heat circulating system includes heating source, the main pipeline for flowing through heating source, the first circulation circuit being connected respectively with main pipeline and
The logical control system closed of two circulation loops and control first circulation circuit and second circulation circuit, the first circulation circuit packet
Include the first circulation pipeline being connected with main pipeline and the first heating coil on the first reaction kettle, the second circulation circuit
The second heating coil including the second circulation pipeline being connected with main pipeline and on the second reaction kettle.
The reaction kettle group of the utility model, multiple reaction kettles share a heat circulating system, when one of reaction kettle not
When needing to heat, heat circulating system can heat another reaction kettle, to reduce the heat stream waited in heating process
It loses, improves capacity usage ratio.In scheme, the quantity of reaction kettle can also be three or more.
Embodiment one
Referring to Fig. 1 to Fig. 9, a kind of reaction kettle group, including the first reaction kettle 02, the second reaction kettle 03 and heat circulating system
01, the heat circulating system 01 includes heating source, the main pipeline D for flowing through heating source, the first circulation being connected respectively with main pipeline D
The logical control system closed in circuit and second circulation circuit and control first circulation circuit and second circulation circuit, described first follows
Loop back path includes the first circulation pipeline E being connected with main pipeline D and the first heating coil F on the first reaction kettle 02, institute
Stating second circulation circuit includes the second circulation pipeline G being connected with main pipeline D and the second heating on the second reaction kettle 03
Coil pipe H.
Referring to Fig. 1, as an improvement, the control system includes controller and is controlled by controller and is respectively arranged on first and follow
Electromagnetic valve I in loop back path and second circulation circuit.Using controller and electromagnetic valve I, it can be achieved that automatically controlling.In controller figure
Do not show.
As an improvement, the first heating coil F is set in the first reaction kettle 02, the second heating coil H is set to the
In two reaction kettles 03.Compared to being set to outside reaction kettle, heating coil is set in reaction kettle, and faster, and heat losses are more for heating speed
It is few.
As an improvement, the liquid in the first circulation circuit and second circulation circuit is water.When heating coil is installed on
In reaction kettle, using water as thermal medium, compared to using media such as oil, even if heating coil is revealed, also hardly pollution is anti-
Answer liquid.
As an improvement, the heating source includes water tank A, heat-exchanger rig B and air energy unit C, the heat-exchanger rig B setting
In water tank A, the air energy unit C is set to outside water tank A and is connected with heat-exchanger rig B.Air energy unit C passes through heat exchange dress
B is set to heat the water in water tank A.
As an improvement, the main pipeline D is equipped with filter J and circulating pump K.Filter J is for miscellaneous in filter pipeline
Matter.Circulating pump K plays pressurization, for providing flow dynamic.
As an improvement, being equipped with insulating layer outside the main pipeline D, first circulation pipeline E and second circulation pipeline G.Work as system
When hot, often heat dissipation capacity is big by main pipeline D etc., so that heat is on the way lost increasing, easily makes pipeline oxidization, in appearances such as main pipeline D
Bread covers installation thermal insulation casing as insulating layer, it is possible to reduce thermal loss caused by heat exchange.
Referring to fig. 2 to Fig. 9, the first reaction kettle 02 of the utility model reaction kettle group, including reaction kettle body 1, reaction kettle body 1
Including the circular cylinder body 11 being detachably connected and upper cover 12, upper cover 12 is equipped with stirring power device 2 and agitating device 3, stirring
Power device 2 includes stirring motor 21 and transmission component 22, and agitating device 3 includes 31 He of agitating shaft driven by stirring motor 21
Blender 32, the stirring power device 2 further include the rotation seat 23 being connected with transmission component 22, are opened up in the rotation seat 23
Through-hole is gone up and down, the agitating shaft 31 is located in lifting through-hole, has elevation positioning structure between the rotation seat 23 and agitating shaft 31
So that agitating shaft 31 can be rotated with rotation seat 23；The agitating device 3 is driven by lifting drive mechanism 5.
Referring to fig. 2 to Fig. 4, reaction kettle body 1 includes the circular cylinder body 11 being detachably connected and upper cover 12, center of circle cylinder and upper
The junction of lid 12 has ring flange.Circular cylinder body 11 and upper cover 12 are detachably connected consequently facilitating installing other components.Upper cover
Settable manhole, hand hole and technique adapter tube etc. on 12.
Referring to Fig. 5 to Fig. 7, as an improvement, the rotation seat 23 is equipped with positioning column 25, it is fixed to open up on the blender 32
Position hole, the positioning column 25 are positioned in location hole, and the positioning column 25 and location hole form the elevation positioning structure.It adopts
Use positioning column 25 and location hole as elevation positioning structure, processing is relatively easy to.
As an improvement, the positioning column 25 is at least two and is circumferentially evenly distributed with, so that mixing component uniform force.Specifically
Ground, in this implementation, positioning column 25 is three.
As an improvement, the upper cover 12 is equipped with mounting base 4, the stirring power device 2 is set in mounting base 4, described
Rotation seat 23 passes through mounting base 4, is equipped with anti-fall plate 26 above the rotation seat 23.In general, motor, rotation seat 23 etc. are set to reaction
Anti-fall plate 26 is arranged in the upper end of kettle, so that rotation seat 23 is without departing from falling.
As an improvement, the rotation seat 23 is substantially in inverted T-shaped, bearing RB is equipped between the rotation seat 23 and mounting base 4.Turn
Dynamic seat 23 is substantially in inverted T-shaped, convenient for connection installation；It is equipped with bearing RB between rotation seat 23 and mounting base 4, reduces rotary resistance, make an uproar
Sound promotes service life.Bearing RB can use self-aligning thrust roller bearing RB.
As an improvement, the upper cover 12 is equipped with stirring port, the stirring port and 24 rotary seal of positioning seat.
As an improvement, the rotation seat 23 has positioning convex portion, it is recessed to open up axially extending positioning on the agitating shaft 31
Slot, the positioning convex portion are positioned in positioning groove, and the positioning convex portion and positioning groove form the elevation positioning structure.
As an improvement, the lifting drive mechanism 5 includes power cylinder 51.Power cylinder 51 can be cylinder or hydraulic cylinder.When
So, in other schemes, lifting drive mechanism 5 can also use motor.
As an improvement, the affixed lifter plate 52 of the output rod of the power cylinder 51, the agitating shaft 31 and lifter plate 52 are solid
It connects.Power cylinder 51 is connected by lifter plate 52 with output rod, so that mixing component lifting is more stable.
As an improvement, at least provided with bearing RB between the lifter plate 52 and agitating shaft 31,31 upper end of agitating shaft is equipped with
Anti-fall nut 53.Anti-fall nut 53 is set, and lifting assembly does not fall out disengaging.Bearing RB can use self-aligning thrust roller bearing
RB。
Referring to Fig. 8, in the present embodiment, transmission component 22 is driving gear set.Rotation seat 23 is connect by key with gear.
Referring to Fig. 9, as an improvement, the 23 affixed positioning seat 24 in lower section of the rotation seat, 24 diameter of positioning seat, which is greater than, to be turned
Dynamic seat 23 and bearing RB, the positioning column 25 are fixed on positioning seat 24.It certainly, can no setting is required positioning seat in other schemes
24, rotation seat 23 is directly connected with blender 32.
First reaction kettle 02 and the second reaction kettle 03 are identical reaction kettle.In other embodiments, 02 He of the first reaction kettle
Second reaction kettle 03 can also be different.
Sealing between first circulation circuit and reaction kettle body can use for reference the prior art.
The beneficial effect of the reaction kettle group of the utility model embodiment one is: the first reaction kettle 02 and the second reaction kettle 03 are total
With heating system 01, the loss of heat when heating waits is reduced, heat utilization ratio is improved；Agitating device 3 not only can be with rotation seat
23 rotations can also be gone up and down while rotation, and stirring is more abundant, and temperature rises more rapidly, more uniform temperature, and reacts effect
Rate is higher.
Embodiment two
The difference of embodiment two and embodiment one is the quantity of reaction kettle.
In embodiment two, reaction kettle group includes more multi-reaction kettle, the increase of reaction kettle, when being further reduced heating waiting
Between.When reaction kettle quantity is suitable for, heating system can uninterruptedly heat for 24 hours, flow to maximumlly reduce when heating waits
The heat of mistake.
Embodiment two is identical as the other structures of embodiment one and effect, and this will not be repeated here.
More than, only specific embodiment of the present utility model, but protection scope of the utility model is not limited thereto,
Being familiar with the those skilled in the art should be understood that the utility model includes but is not limited to attached drawing and above in specific embodiment
The content of description.The modification of any function and structure principle without departing from the utility model is intended to be included in the model of claims
In enclosing.
Claims (8)
1. a kind of reaction kettle group, it is characterised in that: including the first reaction kettle, the second reaction kettle and heat circulating system, the heat
The circulatory system includes that heating source, the main pipeline for flowing through heating source, the first circulation circuit being connected respectively with main pipeline and second are followed
The logical control system closed of loop back path and control first circulation circuit and second circulation circuit, the first circulation circuit include with
The connected first circulation pipeline of main pipeline and the first heating coil on the first reaction kettle, the second circulation circuit include
The second circulation pipeline being connected with main pipeline and the second heating coil on the second reaction kettle, first heating coil are set
In the first reaction kettle, second heating coil is set in the second reaction kettle, and the first circulation circuit and second circulation are returned
Liquid in road is water.
2. a kind of reaction kettle group according to claim 1, it is characterised in that: the control system includes controller and controlled
In controller and the solenoid valve that is respectively arranged on first circulation circuit and second circulation circuit.
3. a kind of reaction kettle group according to claim 1, it is characterised in that: the heating source includes water tank, heat-exchanger rig
With air energy unit, the heat-exchanger rig is arranged in water tank, the air energy machine be mounted on water tank it is outer and with heat-exchanger rig phase
Connection.
4. a kind of reaction kettle group according to claim 1, it is characterised in that: the main pipeline is equipped with filter and circulation
Pump.
5. a kind of reaction kettle group according to claim 1, it is characterised in that: the main pipeline, first circulation pipeline and
Insulating layer is equipped with outside two circulation lines.
6. a kind of reaction kettle group according to any one of claims 1 to 5, it is characterised in that: first reaction kettle includes anti-
Autoclave body is answered, the reaction kettle body includes the circular cylinder body being detachably connected and upper cover, and the upper lid is equipped with stirring power device
And agitating device, the stirring power device include stirring motor and transmission component, the agitating device includes by stirring motor
The agitating shaft and blender of driving, the stirring power device further include the rotation seat being connected with transmission component, the rotation seat
In open up lifting through-hole, the agitating shaft is located in lifting through-hole, and the rotation seat and stirring between centers have elevation positioning structure
So that agitating shaft can be rotated with rotation seat；The agitating device is driven by lifting drive mechanism.
7. a kind of reaction kettle group according to claim 6, it is characterised in that: the rotation seat is equipped with positioning column, described
Location hole is opened up on blender, the positioning column is positioned in location hole, and the positioning column and positioning hole form the lifting
Location structure.
8. a kind of reaction kettle group according to claim 6, it is characterised in that: the lifting drive mechanism includes power cylinder,
The affixed lifter plate of the output rod of the power cylinder, the agitating shaft and lifter plate are affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821627768.1U CN209188735U (en) | 2018-10-08 | 2018-10-08 | A kind of reaction kettle group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821627768.1U CN209188735U (en) | 2018-10-08 | 2018-10-08 | A kind of reaction kettle group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209188735U true CN209188735U (en) | 2019-08-02 |
Family
ID=67407297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821627768.1U Active CN209188735U (en) | 2018-10-08 | 2018-10-08 | A kind of reaction kettle group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209188735U (en) |
-
2018
- 2018-10-08 CN CN201821627768.1U patent/CN209188735U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202185277U (en) | Sealed constant temperature high speed agitating cup for laboratory | |
| CN209188734U (en) | A kind of multi-reaction kettle system | |
| CN209188735U (en) | A kind of reaction kettle group | |
| CN204193943U (en) | Temperature automatically controlled reactor | |
| CN209188753U (en) | A kind of reaction kettle group of good seal performance | |
| CN209237936U (en) | A kind of energy-efficient reaction kettle system | |
| CN201921686U (en) | Reaction kettle | |
| CN205462199U (en) | Polyurethane reation kettle | |
| CN101979495B (en) | Magnetic stirring bioreactor and magnetic stirring system | |
| CN211159746U (en) | Temperature control system of adhesive reaction kettle | |
| CN215139942U (en) | Constant temperature reaction kettle | |
| CN105771854B (en) | Scraper lifting machine feed type pulsation reactor | |
| CN215028787U (en) | Stirring reaction kettle with composite stirrer | |
| CN212189059U (en) | Kettle type stirring reactor | |
| CN110454972B (en) | Thermal circulation type steam heat-preservation energy-saving hot water boiler | |
| CN209597196U (en) | A kind of Petropols production polymeric kettle promoting uniformity | |
| CN208288012U (en) | A kind of heat-conducting oil heating low-loss stirred autoclave | |
| CN208406969U (en) | A kind of hot melt adhesive production line polymerization reaction kettle | |
| CN219879890U (en) | Stainless steel reaction kettle with waste heat recovery structure | |
| CN215560154U (en) | Water adding system at bottom of steamer | |
| CN211233079U (en) | Central heating temperature control and regulation system | |
| CN209237931U (en) | A kind of liftable reaction kettle of blender | |
| CN216418389U (en) | Jacketed centrifugal extractor | |
| CN219003072U (en) | Treatment reaction kettle for cresol | |
| CN212942902U (en) | Concentrated reation kettle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |