CN205761142U - A kind of enamel detachable stirrer - Google Patents
A kind of enamel detachable stirrer Download PDFInfo
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- CN205761142U CN205761142U CN201620491098.XU CN201620491098U CN205761142U CN 205761142 U CN205761142 U CN 205761142U CN 201620491098 U CN201620491098 U CN 201620491098U CN 205761142 U CN205761142 U CN 205761142U
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- end stand
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- stirring vane
- vane assembly
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Abstract
This utility model enamel detachable stirrer, including stirring vane assembly, seal receptacle, sealing ring, shaft, alignment pin, connection screw rod, pad and locking nut, after this utility model tightens locking nut, stirring vane assembly links together closely with shaft, sealing ring on seal receptacle plays good sealing function, stops the intrusion of Korrosionsmedium.Simultaneously because seal receptacle quality is soft, when being subject to the thrust connecting screw rod, seal receptacle can produce slight deformation, contact with each other by the first end stand seal face on stirring vane assembly with the second end stand seal face on shaft and compress, the continuation preventing seal receptacle deforms, and in agitator rotary course, do not continue to by additional compression stress.The setting of alignment pin, can effectively prevent the relative motion between stirring vane assembly and shaft, it is no longer necessary to particularly arrange anti-reverse mechanism on actuating device.
Description
Technical field:
This utility model relates to a kind of enamel detachable stirrer, is the vitals of the stirring container for enamel glass of resistant to chemical media corrosion, directly influences the efficiency of chemical reaction and the yield of chemical products, and it belongs to chemical industry mix and blend apparatus field.
Background technology:
Glassed steel reaction vessels, due to its fine corrosion resistance, any surface finish easy to clean, the advantage such as non-metallic ion pollutes, price is low, is widely used in fields such as chemical industry, medicine, pesticide, food.But its agitator paddle type used is dull, domestic general based on paddle, vane type, anchor formula, frame and axial-flow type.Agitator surface needs enamel, and due to the particular/special requirement of enamel technique, blade is all welded into overall structure with shaft, and corner has been both needed to arc transition.Due to this overall structure of enamel glass stirrer, this is accomplished by glassed steel reaction vessels one bigger stirring installing port of design, or uses kettle cover and the separate structure of still body, in order to be removed or placed into agitator.Such structure design shortcoming is a lot, is first to arrange big opening, adds sealing difficulty, is susceptible to leakage；Secondly, when installing every time or take out agitator, needing all to take out whole agitator, must also first remove the parts such as motor, reductor, mechanical seal, frame during taking-up, workload is the biggest；Again, the agitator of major diameter, on lathe during processing stirring spindle nose, whole agitator clamping is very difficult, and processing cost is high；Finally, propeller-blade pattern is fixing, wants to change blade form, it is necessary to change whole agitator, be not easy to the convenient change of production technology.
Existence based on above-mentioned situation, the development of enamel detachable stirrer has obtained the attention of global enamel manufacturer.Enamel detachable stirrer is disclosed and is described the most in the prior art at present, the agitator described in such as United States Patent (USP) US4221488 and Chinese patent CN86100649.6.But their know-why is substantially identical, detachable stirrer includes a drive shaft and one or more removable impeller.Impeller includes one for the wheel hub being connected with drive shaft and two or more from the outwardly directed blade of wheel hub.Expose module outer surface in media as well and be coated with one layer of enamel coating resist corrosion, prevent adhesion and wear and tear.Utilize principle of expanding with heat and contracting with cold, blade wheel hub interference fit is arranged on shaft.Blade wheelboss inner hole and shaft cylindrical enamel surface are required to carry out accurate honing, and strictly control its margin of tolerance.Under room temperature state, diameter of bore is more slightly smaller than axle external diameter, belongs to interference fit.Need by wheelboss inner hole heating or by shaft cryogenic refrigeration during installation, utilize what variations in temperature caused to expand with heat and contract with cold so that diameter of bore is slightly larger than axle external diameter, form matched in clearance, can successfully by blade wheel hub sleeve on axle, until blade is consistent with axle temperature degree, obtained reliable connection.When removing blade, also by same method, by the heating of blade wheel hub or by axle cryogenic refrigeration so that endoporus and axle matching loose, then taken off.But this dismounting technology, there is a lot of problems: 1, agitator is relatively difficult when removing blade, during because to shaft freezing or blade wheel hub being heated, heat transfer phenomenon is unavoidably there is between wheel hub and axle, result in temperature difference to diminish, the amount of expanding with heat and contract with cold reduces so that relatively difficult during dismounting, it is impossible to the phenomenon of dismounting happens occasionally.When 2, installing and remove, need to use liquid nitrogen and some other specific purpose tool, operation complexity.3, blade wheelboss inner hole coordinates the enamel surface honing precision at place to require the highest with axle, processes extremely difficult, and this most domestic enamel manufacturer can not one of the main reason of popularity detachable stirrer.
For above-mentioned situation, (a kind of threaded enamel detachable stirrer in the patent of my company's earlier application, application number 201610037456.4), use the interference fit that threaded replacement utilizes the temperature difference to assemble, the problem of dismounting difficulty to obtain good solution.But threaded agitator, according to the rotation direction of screw thread, agitator can only rotate the most in one direction, the patent of my company's application aforementioned, by arranging mechanical type anti-reverse mechanism in actuating device, reaches to forbid the purpose that agitator opposite direction rotates.But this design structure, adds the design of actuating device, the difficulty manufacturing and installing and cost.And during agitator rotates along correct direction of rotation, black box being produced a lasting compression stress, long-play may cause the problems such as the deformation of seal receptacle.
Therefore, the technical scheme studying more advanced enamel detachable stirrer is significant, and requires without distinguishing direction of rotation, difficulty of processing little, install with remove simple and convenient, do not destroy the original decay resistance of enamel, the requirement of major part Chemical Engineering application can be met.
Utility model content:
This utility model provides a kind of enamel detachable stirrer, can assembly or disassembly in limited space, and by size limited import or export, blade can be put in assembly or disassembly taking-up.Simultaneously during assembly or disassembly, it is only necessary to the most threaded or dismantle, it is not necessary to carry out complicated interference and be linked and packed or dismantle.Add and have only to carry out simple screw thread process man-hour and sealing surface grinds smooth, it is not necessary to high-precision machined surface quality and tolerance grade control.
nullThis utility model adopts the following technical scheme that a kind of enamel detachable stirrer，Including stirring vane assembly、Seal receptacle、Sealing ring、Shaft、Alignment pin、Connect screw rod、Pad and locking nut，Stirring vane assembly includes blade wheel hub a and from blade wheel hub a outwardly directed blade b，After described connection screw rod is installed in shaft and outside its two end each extends over beyond shaft，Pad and locking nut are installed on the end connecting screw rod，Another end thread connecting screw rod is connected on stirring vane assembly，Surface together with being installed on shaft on described stirring vane assembly includes the first end stand sealing surface and the first end stand seal face，First end stand seal face extends beyond outside the first end stand sealing surface，Enamel coating ground smooth is scribbled at described first end stand sealing surface，Surface together with being installed on stirring vane assembly on described shaft includes the second end stand sealing surface and the second end stand seal face，Described second end stand seal face extends beyond outside the second end stand sealing surface，Enamel coating ground smooth is scribbled at second end stand sealing surface，Described seal receptacle is installed between the first end stand sealing surface and the second end stand sealing surface，And it is fluted to be close to the formation of caving in respectively of the surface of the first end stand sealing surface and the second end stand sealing surface on seal receptacle，Sealing ring is installed in a groove，Described alignment pin is installed on stirring vane assembly and shaft simultaneously.
Further, on described first end stand seal face, depression is formed with internal thread hole, and the position depression being positioned at internal thread hole side on the first end stand seal face is formed with the first hole, location.
Further, the inside of described shaft is hollow form, the part of described shaft hollow form is positioned on the second end stand seal face, the side being positioned at hollow form part on described second end stand seal face is formed with the second location hole alignd perpendicular with the first hole, location, and the distance in the center of circle in described first hole, location to the first end stand seal face center is equal to the distance at the second end stand seal face center with the second hole, location.
Further, described alignment pin is installed in the first hole, location and the second hole, location, and described second hole, location is female thread shape, and the number in described first hole, location and the second hole, location is equal.
Further, two ends of described connection screw rod form the first external screw thread and the second external screw thread respectively, connect after screw rod is installed on the hollow inner of shaft and the first external screw thread thereon is threadedly connected in the internal thread hole on stirring vane assembly, described pad and locking nut are sheathed on the second external screw thread, link together to be compressed with shaft by stirring vane assembly by screwing locking nut.
Further, described sealing ring is O type, and the material of sealing ring is FFKM or bag fluorubber.
Further, the number of described blade b is at least two panels.
Further, the material of described seal receptacle is PTFE or modified ptfe.
Further, the thickness of described enamel coating is 0.8-2.0mm.
Further, described shaft includes shaft and lower shaft, between upper shaft and lower shaft, stirring vane assembly is installed, described upper stirring vane assembly includes blade wheel hub a ' and from blade wheel hub a ' outwardly directed blade b ', surface together with being installed on mutually with upper shaft and lower shaft on described upper stirring vane assembly includes the 3rd end stand sealing surface and the 3rd end stand seal face respectively, 3rd end stand sealing surface scribbles enamel coating ground smooth, it is formed through a through hole on described 3rd end stand seal face, described second end stand sealing surface and the second end stand seal face are formed on lower shaft on the surface together with being installed on stirring vane assembly.
This utility model has the advantages that
(1). need not complicated enamel Honing process and elastic conjunction and dismounting, only need simple screw thread process and enamel sealing plane to grind and just can meet installation requirement；
(2). use high resilience the O type rubber seal that can be able to bear strong corrosion, it can be ensured that stirring vane assembly and the positive sealing of shaft junction；
(3). when multiple blade is installed, major axis can be divided into some sections of short axles, reduce difficulty of processing；
(4). shaft and stirring vane assembly threadeding due to employing, in order to prevent thread looseness or displacement, by being provided with alignment pin between stirring vane assembly and shaft, can thoroughly stop to stir and rotate at different directions and cause the situation connecting thread looseness or displacement to occur, and implement very convenient；
(5). being respectively provided with seal face in the end of stirring vane assembly Yu shaft, after having connected, the seal face of steel fits together, and prevents the seal receptacle of soft materials from being deformed impaired for a long time by compression stress.
Accompanying drawing illustrates:
Fig. 1 is this utility model enamel detachable stirrer first embodiment (individual blade) schematic diagram.
Fig. 2 is shaft afterbody enlarged diagram in Fig. 1.
Fig. 3 is stirring vane assembly enlarged diagram in Fig. 1.
Fig. 4 is seal receptacle enlarged diagram in Fig. 1.
Fig. 5 is connection screw rod schematic diagram in Fig. 1.
Fig. 6 is stirring vane assembly and shaft junction enlarged diagram in Fig. 1.
Fig. 7 is this utility model enamel detachable stirrer the second embodiment (multiple blade) schematic diagram
Fig. 8 is stirring vane assembly enlarged diagram in Fig. 7.
Fig. 9 is stirring vane assembly junction enlarged diagram in Fig. 7.
Detailed description of the invention:
Embodiment one:
nullAs shown in Figures 1 to 6，This utility model enamel detachable stirrer includes stirring vane assembly 1、Seal receptacle 2、Sealing ring 3、Shaft 4、Alignment pin 5、Connect screw rod 6、Pad 7 and locking nut 8，Together with stirring vane assembly 1 is mounted on shaft 4，Stirring vane assembly 1 includes blade wheel hub a and from blade wheel hub a outwardly directed blade b，The number of blade b is at least two panels，Surface together with being installed on shaft 4 on stirring vane assembly 1 includes the first end stand sealing surface 102 and the first end stand seal face 103，First end stand seal face 103 extends beyond outside the first end stand sealing surface 102，Enamel coating ground smooth is scribbled at first end stand sealing surface 102，The thickness of enamel coating is 0.8-2.0mm，On the first end stand seal face 103, depression is formed with internal thread hole 101，The position depression being positioned at internal thread hole 101 side on the first end stand seal face 103 is formed with the first hole, location 104.
The inside of shaft 4 is hollow form, and the surface together with being installed on stirring vane assembly 1 on shaft 4 includes the second end stand sealing surface 401 and the second end stand seal face 402, second end stand seal face 402 extends beyond outside the second end stand sealing surface 401, enamel coating ground smooth is scribbled at second end stand sealing surface 401, the thickness of enamel coating is 0.8-2.0mm, the part of shaft 4 hollow form is positioned on the second end stand seal face 402, the side being positioned at hollow form part on second end stand seal face 402 is formed with the second location hole 403 (second location hole 403 be female thread shape) alignd perpendicular with the first hole 104, location, the number in the first hole, location 104 and the second hole 403, location is equal.Wherein the center of circle in the first hole 104, location is equal with the distance at second the 403 to the second end stand seal face 402 center, hole, location to the distance at the first end stand seal face 103 center.Alignment pin 5 is installed in the first hole, location 104 and the second hole 403, location.Seal receptacle 2 is installed between the first end stand sealing surface 102 and the second end stand sealing surface 401, the material of seal receptacle 2 is PTFE or modified ptfe, and be close to the surface of the first end stand sealing surface 102 and the second end stand sealing surface 401 on seal receptacle 2 and cave in respectively formation fluted 201, sealing ring 3 is installed in groove 201, sealing ring 3 in this utility model is O type, and the material of sealing ring 3 is FFKM or bag fluorubber.
Two ends connecting screw rod 6 form the first external screw thread 601 and the second external screw thread 602 respectively, connect after screw rod 6 is installed on the hollow inner of shaft 4 and on the first external screw thread 601 be threadedly connected in the internal thread hole 101 on stirring vane assembly 1, second external screw thread 602 extends beyond outside shaft 4, second external screw thread 602 is arranged with pad 7 and locking nut 8, by screwing locking nut 8 and then being linked together with shaft 4 compression by stirring vane assembly 1.
In this utility model enamel detachable stirrer, seal receptacle 2 it is sequentially installed with between stirring vane assembly 1 and shaft 4, equipped with two O RunddichtringOs on seal receptacle 2, alignment pin 5 screws in the second hole 403, location in advance, and insert in the first hole 104, location of stirring vane assembly 1, connect screw rod 6 to penetrate from shaft 4 top, bottom the first external screw thread 601 screws in the internal thread hole 101 of stirring vane assembly 1, top the second external screw thread 602 overlaps Upper gasket 7, and tighten with locking nut 8, and then stirring vane assembly 1 is pressed on shaft 4.After tightening locking nut 8, stirring vane assembly 1 links together closely with shaft 3, and the sealing ring 3 on seal receptacle 2 plays good sealing function, stops the intrusion of Korrosionsmedium.Simultaneously, owing to seal receptacle 2 material is PTFE or modified ptfe, quality is soft, there is intrinsic cold flow properties, when being subject to the thrust connecting screw rod 6, seal receptacle 2 can produce slight deformation, and diametrically stretch out, the degree compressed at any time is increasing, seal receptacle 2 continues, by compression, until the first end stand seal face 103 on stirring vane assembly 1 contacts with each other with the second end stand seal face 402 on shaft 4 and compresses, to prevent the continuation of seal receptacle 2 to deform, and in agitator rotary course, do not continue to by additional compression stress.Such structure designs, it is to avoid the defect that the deformation of seal receptacle 2 life-time service is bigger, it can be ensured that the dimensionally stable of seal receptacle 2, protects the O RunddichtringO in seal receptacle 2, so that sealing long time stability between stirring vane assembly and shaft.And the setting of alignment pin 5, can effectively prevent the relative motion between stirring vane assembly and shaft, it is no longer necessary to anti-reverse mechanism is particularly set on actuating device.
It is known that without arranging alignment pin 5, connection screw rod 6 and the stirring vane assembly 1 that clockwise thread connects, when the direction of rotation of shaft 4 is clockwise, screw thread can revolve tighter and tighter, will not unclamp.And if shaft 4 for rotating counterclockwise time, owing to stirring vane assembly 1 is by the resistance of medium in reactor, be equivalent to opposite direction and unclamp screw thread, it is easy to cause loosening or departing from of screw connection point so that enamel detachable stirrer is corroded or damages.Therefore, this utility model is provided with alignment pin 5, can effectively stop and produce relative displacement between stirring vane assembly 1 and shaft 4 and loosen, be suitable for positive and negative two kinds of direction of rotation, without the most mechanically or electrically device anti-reverse mechanism.
Embodiment two:
This utility model enamel detachable stirrer includes stirring vane assembly 1, seal receptacle 2, sealing ring 3, alignment pin 5, connects screw rod 6, lower shaft 9, upper stirring vane assembly 10, upper shaft 11, pad 7 and locking nut 8, this embodiment illustrates structure when needing many group stirring vane assemblies.
Together with upper stirring vane assembly 10 is mounted on upper shaft 11 and lower shaft 9, upper stirring vane assembly 10 includes blade wheel hub a ' and from blade wheel hub a ' outwardly directed blade b ', surface together with being installed on upper shaft 11 and lower shaft 9 phase on upper stirring vane assembly 10 includes the 3rd end stand sealing surface 1002 and the 3rd end stand seal face 1003 respectively, 3rd end stand sealing surface 1002 scribbles enamel coating ground smooth, the thickness of enamel coating is 0.8-2.0mm, a through hole 1001 it is formed through on 3rd end stand seal face 1003, the side depression being positioned at through hole 1001 on the 3rd end stand seal face 1003 is formed with the 3rd hole 1004, location.
nullIn this utility model enamel detachable stirrer upper stirring vane assembly 10 respectively with being attached of upper shaft 11 and lower shaft 9，It is provided with seal receptacle 2 between upper stirring vane assembly 10 and upper shaft 11 and lower shaft 9，Two O RunddichtringOs it are respectively arranged with on each seal receptacle 2，Alignment pin 5 screws in lower shaft 9 and the end of upper shaft 11 in advance，And insert in the hole, location on stirring vane assembly 1 and upper stirring vane assembly 10 end，Connect screw rod 6 to penetrate from upper shaft 11 top，Sequentially pass through stirring vane assembly 10、Lower shaft 9，Lower external thread screws in the blade wheel hub a of stirring vane assembly 1，Upper shaft 11 top set Upper gasket 7，And tighten connection screw rod 6 with locking nut 8，Upper stirring vane assembly 10 and stirring vane assembly 1 are pressed on upper shaft 11 and lower shaft 9.
This utility model enamel detachable stirrer, can be applicable on open type or the enclosed reactor of all kinds of strong corrosive media, and can install or remove easily in the small space within reactor, and mount and dismount the simplest, having only to tighten screw thread, the success rate of dismounting can ensure that absolutely success.When agitator is long, when needing multiple blade, also can simply shaft be divided into some sections of processing, it is threaded connection the most again and assembles, do so can be substantially reduced the difficulty of processing of shaft, and can easily various types of stirring blade profiles reasonably be combined, to reach optimal mixing effect.It addition, for preventing two kinds of directions of agitator from causing threaded loosening or displacement when rotating, be provided with at least one alignment pin between shaft and stirring vane assembly, reach the purpose placed restrictions on displacement with loosen.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, can also make some improvement on the premise of without departing from this utility model principle, these improvement also should be regarded as protection domain of the present utility model.
Claims (10)
1. an enamel detachable stirrer, it is characterised in that: include stirring vane assembly (1), seal receptacle (2), sealing ring
(3), shaft (4), alignment pin (5), connection screw rod (6), pad (7) and locking nut (8), stirring vane assembly (1) bag
Including blade wheel hub (a) and from the outwardly directed blade (b) of blade wheel hub (a), described connection screw rod (6) is installed on shaft (4)
After in and outside its two end each extends over beyond shaft (4), pad (7) and locking nut (8) are installed on and connect screw rod (6)
An end, connect screw rod (6) another end thread be connected on stirring vane assembly (1), described stirring vane assembly (1)
Surface together with being above installed on shaft (4) includes the first end stand sealing surface (102) and the first end stand seal face (103), the
One end stand seal face (103) extends beyond outside the first end stand sealing surface (102), and described first end stand sealing surface (102) place is coated with
Have enamel coating ground smooth, described shaft (4) is upper be installed on stirring vane assembly (1) together with surface include
Second end stand sealing surface (401) and the second end stand seal face (402), described second end stand seal face (402) extends beyond second
Outside end stand sealing surface (401), the second end stand sealing surface (401) place scribbles enamel coating ground smooth, described sealing
Seat (2) is installed between the first end stand sealing surface (102) and the second end stand sealing surface (401), and is close to the on seal receptacle (2)
Cave in respectively and form fluted (201), at groove in the surface of one end stand sealing surface (102) and the second end stand sealing surface (401)
(201) being provided with sealing ring (3) in, described alignment pin (5) is installed on stirring vane assembly (1) and shaft (4) simultaneously.
2. enamel detachable stirrer as claimed in claim 1, it is characterised in that: at described first end stand seal face
(103) upper depression is formed with internal thread hole (101), is positioned at internal thread hole (101) side on the first end stand seal face (103)
Position depression is formed with the first hole, location (104).
3. enamel detachable stirrer as claimed in claim 2, it is characterised in that: the inside of described shaft (4) in
Empty shape, the part of described shaft (4) hollow form is positioned on the second end stand seal face (402), described second end stand seal face
(402) side being positioned at hollow form part on is formed with the second location hole alignd perpendicular with the first hole, location (104)
(403), the center of circle of described first hole, location (104) positions hole to the distance at the first end stand seal face (103) center with second
(403) distance to the second end stand seal face (402) center is equal.
4. enamel detachable stirrer as claimed in claim 3, it is characterised in that: described alignment pin (5) is installed on first
In hole, location (104) and the second hole, location (403), described second hole, location (403) is female thread shape, described first hole, location
(104) number of and the second hole, location (403) is equal.
5. enamel detachable stirrer as claimed in claim 4, it is characterised in that: two ends of described connection screw rod (6)
Form the first external screw thread (601) and the second external screw thread (602) respectively, connect screw rod (6) and be installed in the hollow form of shaft (4)
Behind portion and the first external screw thread thereon (601) is threadedly connected in the internal thread hole (101) on stirring vane assembly (1), described
Pad (7) and locking nut (8) are sheathed on the second external screw thread (602), by screwing locking nut (8) with by stirring vane group
Part (1) compresses with shaft (4) and links together.
6. enamel detachable stirrer as claimed in claim 5, it is characterised in that: described sealing ring (3) is O type, seals
The material of circle (3) is FFKM or bag fluorubber.
7. enamel detachable stirrer as claimed in claim 6, it is characterised in that: the number of described blade (b) is at least
Two panels.
8. enamel detachable stirrer as claimed in claim 7, it is characterised in that: the material of described seal receptacle (2) is
PTFE or modified ptfe.
9. enamel detachable stirrer as claimed in claim 8, it is characterised in that: the thickness of described enamel coating is
0.8-2.0mm。
10. enamel detachable stirrer as claimed in claim 1, it is characterised in that: described shaft (4) includes stirring
Axle (11) and lower shaft (9), be provided with upper stirring vane assembly (10) between upper shaft (11) and lower shaft (9),
Described upper stirring vane assembly (10) includes blade wheel hub (a ') and from blade wheel hub (a ') outwardly directed blade (b '), described
Surface together with being installed on mutually with upper shaft (11) and lower shaft (9) on upper stirring vane assembly (10) includes the 3rd respectively
End stand sealing surface (1002) and the 3rd end stand seal face (1003), scribble enamel coating on the 3rd end stand sealing surface (1002)
And ground smooth, described 3rd end stand seal face (1003) is formed through a through hole (1001), described second end stand is close
Together with front cover (401) and the second end stand seal face (402) are formed at that lower shaft (9) is upper and are installed on stirring vane assembly (1)
Surface on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491098.XU CN205761142U (en) | 2016-05-26 | 2016-05-26 | A kind of enamel detachable stirrer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491098.XU CN205761142U (en) | 2016-05-26 | 2016-05-26 | A kind of enamel detachable stirrer |
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| CN205761142U true CN205761142U (en) | 2016-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854767A (en) * | 2016-05-26 | 2016-08-17 | 南京正源搪瓷设备制造有限公司 | Glass-lined detachable stirrer |
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2016
- 2016-05-26 CN CN201620491098.XU patent/CN205761142U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854767A (en) * | 2016-05-26 | 2016-08-17 | 南京正源搪瓷设备制造有限公司 | Glass-lined detachable stirrer |
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