CN112682512A - Sealing part of high-rotating-speed high-temperature dryer - Google Patents
Sealing part of high-rotating-speed high-temperature dryer Download PDFInfo
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- CN112682512A CN112682512A CN202011386155.5A CN202011386155A CN112682512A CN 112682512 A CN112682512 A CN 112682512A CN 202011386155 A CN202011386155 A CN 202011386155A CN 112682512 A CN112682512 A CN 112682512A
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Abstract
The invention discloses a sealing piece of a high-rotating-speed high-temperature dryer, which comprises an end pressing cover, a spring sealing sleeve, a thermometer, a check valve and a positioning ring, wherein a shaft sleeve is arranged on the inner side of the end pressing cover, an O-shaped ring of the shaft sleeve is arranged on the inner side of the shaft sleeve, a mounting hole is formed in the end pressing cover, a sliding rod is arranged on the end pressing cover, an extension rod is arranged on the sliding rod through a limiting sleeve ring, one end of the extension rod is connected with the positioning sleeve, a fastening threaded hole is formed in the positioning sleeve, a fastening bolt is arranged in the fastening threaded hole, a double-layer sealing ring is arranged on the inner side. This high rotational speed high temperature drying machine sealing member is provided with quiet ring O type circle, rotating ring O type circle, axle sleeve O type circle and atmosphere end sealing washer, avoids between the connecting piece contact looks mutual friction to cause the loss, has prolonged the working life of sealing member, guarantees the sealed effect of long-time use.
Description
Technical Field
The invention relates to the technical field of sealing elements, in particular to a sealing element of a high-speed and high-temperature dryer.
Background
Dryers have been successfully used in the fields of food, chemical, petrochemical, dye, industrial sludge, and the like. The paddle dryer is a horizontal stirring type dryer mainly using conduction. The main structure is a W-shaped shell with a jacket, a paired hollow low-speed rotary hollow shaft is arranged in the W-shaped shell, a plurality of stirring blades are welded on the shaft, heat carriers are introduced into the jacket and the hollow stirring blades, and the two heating surfaces heat materials simultaneously. The heat carrier is usually fed from the middle of the dryer, passes through the surface of the material bed in a stirred state, and is discharged from the other side. If other needs, the machine can be designed to be a double-shaft or multi-shaft type. Two to four hollow stirring shafts are generally arranged in the shell of the paddle dryer. The shell is provided with a sealing end cover and an upper cover, so that the material dust is prevented from leaking and the full play of the function is realized. The sealing effect of the dryer directly affects the drying effect of the heated material and the long-term stable operation of the whole apparatus.
The existing sealing piece still has some insufficiencies in the use, for example because with axle class part in close contact with when installing fixedly, coaxial positioning is inconvenient, misplaces easily, and after long-time work under high temperature environment, because ambient temperature and rotatory in-process frictional force influence temperature continuously rise, can influence sealed effect and cause the sealing piece to damage even.
We have therefore proposed a high speed high temperature dryer seal to address the problems set out above.
Disclosure of Invention
The invention aims to provide a sealing piece of a high-rotating-speed high-temperature dryer, which aims to solve the problem that the sealing effect is influenced by the continuous rise of the temperature in the market in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a sealing part of a high-speed high-temperature dryer comprises an end pressing cover, a spring sealing sleeve, a thermometer, a check valve and a positioning ring, wherein the inner side of the end pressing cover is provided with an axle sleeve, the inner side of the axle sleeve is provided with an axle sleeve O-shaped ring, the end pressing cover is provided with a mounting hole and is provided with a slide bar, the slide bar is provided with an extension bar through a limiting sleeve ring, one end of the extension bar is connected with the positioning sleeve, the positioning sleeve is provided with a fastening threaded hole, the fastening threaded hole is internally provided with a fastening bolt, the inner side of the fastening threaded hole is provided with a double-layer sealing ring, one side of the positioning sleeve is provided with the positioning ring, one side of the positioning ring is in contact with the atmosphere end pressing cover, the positioning ring is clamped between the positioning sleeve and the atmosphere end pressing cover, the atmosphere end pressing cover is provided with, and interior solid fixed ring one side and interior rotating ring sliding contact, rotating ring O type circle is installed to interior rotating ring inboard, and the interior rotating ring one side of keeping away from interior solid fixed ring installs the throw-out collar, the throw-out collar is provided with two altogether be connected with compression spring between the throw-out collar, the throw-out collar is kept away from one side of interior rotating ring and is installed outer rotating ring to outer rotating ring installs the right side outer fixed ring, threaded hole post has been seted up on the spring seal, match in the threaded hole post and install interior hexagonal screw, the probe is installed to end gland inboard, and probe one end runs through the end gland and is connected with the thermometer to the outside at the end gland is installed to the thermometer, the coolant liquid access & exit has been seted up on the end gland lateral wall, install the check valve in the.
Furthermore, the end pressing cover is matched with the mounting hole through a bolt to form a fixed structure with the dryer frame, lubricating oil is arranged between the end pressing cover and the shaft sleeve, the end pressing cover and the shaft sleeve form a rotating structure, and the shaft sleeve is of a stepped shaft barrel structure.
Furthermore, the inner fixing ring and the inner rotating ring are tightly attached to form a rotating structure, the outer diameter of the inner rotating ring is smaller than the inner diameter of the spring envelope, the inner rotating ring and the shaft sleeve form a synchronous rotating structure, and the inner fixing ring and the inner rotating ring are elastic smooth square-section right circular ring structures.
Furthermore, the outer fixing ring and the outer rotating ring are tightly attached to form a rotating structure, the outer fixing ring and the outer rotating ring are both elastic smooth square-section right circular ring structures, the outer diameter of the outer rotating ring is smaller than the inner diameter of the spring envelope, and the outer rotating ring and the shaft sleeve form a synchronous rotating structure.
Furthermore, the limiting lantern ring and the sliding rod form a sliding structure for changing the axial position of the positioning sleeve, the positioning sleeve is of a hard plastic ring-shaped structure, the inner diameter of the positioning sleeve is smaller than the outer diameter of one end of the shaft sleeve, and the positioning sleeve is sleeved outside the shaft installed in the middle of the positioning sleeve through a fastening bolt.
Furthermore, the spring envelope and the shaft sleeve form a fixed structure through an inner hexagon screw, the spring envelope is of a thin-wall cylindrical structure, the push rings form a sliding structure on the inner side of the spring envelope, and the two push rings form a pressing and fixing structure through compression springs.
Furthermore, the cooling liquid inlet and outlet and the one-way valve are connected through thread sealing to form a closed structure, one end of the one-way valve is connected with the guide pipe and the cooling liquid circulating device, the one-way valve is symmetrically arranged relative to the axis of the sealing element, and the cavity between the end pressure cover and the spring jacket is filled with cooling liquid.
Further, the atmosphere end sealing ring is in interference fit with the atmosphere end gland and the end gland, and the atmosphere end sealing ring is in an elastic smooth square cross-section right circular ring structure.
Further, double-deck sealing washer is interference fit with the position sleeve inner wall, quiet ring O type circle is interference fit with the end gland, rotating ring O type circle is interference fit with interior rotating ring and outer rotating ring, axle sleeve O type circle is interference fit with the axle sleeve inner wall, and axle sleeve O type circle, quiet ring O type circle and rotating ring O type circle are the smooth square cross-section right circular ring structure of elasticity.
Compared with the prior art, the invention has the beneficial effects that: the high-speed high-temperature dryer seal;
1. the static ring O-shaped ring, the moving ring O-shaped ring, the shaft sleeve O-shaped ring and the atmosphere end sealing ring are arranged, so that the loss caused by mutual contact and friction between connecting pieces is avoided, the service life of a sealing piece is prolonged, and the sealing effect of long-time use is ensured;
2. the inner cavity of the end gland can be filled with cooling liquid, a thermometer is used for checking the temperature of the cooling liquid in real time through a probe, and the temperature stability of the cooling liquid is ensured through a one-way valve and a pipeline circulating system, so that the overall temperature of a sealing element is not overhigh, and the sealing effect is ensured;
3. the positioning sleeve is provided with an extension rod and a limiting sleeve ring, the position of the positioning sleeve is adjusted on the slide rod, the positioning sleeve is convenient to coordinate with the shaft part when the sealing element is installed, the positioning sleeve is fixed on the shaft through a fastening bolt, the sealing element is convenient to position, and the positioning sleeve is convenient to install.
Drawings
FIG. 1 is a schematic view of the main sectional structure of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 1 according to the present invention;
FIG. 5 is a schematic view of the spring enclosure of the present invention;
FIG. 6 is a schematic view of the structure of the positioning sleeve of the present invention.
In the figure: 1. an end gland; 2. a shaft sleeve; 3. an inner fixing ring; 4. an inner rotating ring; 5. an outer fixing ring; 6. an outer rotating ring; 7. a positioning sleeve; 8. a spring cover; 9. a socket head cap screw; 10. a push ring; 11. a compression spring; 12. mounting holes; 13. a coolant inlet and outlet; 14. a slide bar; 15. an extension rod; 16. a limiting lantern ring; 17. fastening a bolt; 18. an atmosphere end gland; 19. a probe; 20. a thermometer; 21. a one-way valve; 22. an atmosphere end seal ring; 23. a threaded bore post; 24. fastening the threaded hole; 25. a double-layer sealing ring; 26. a positioning ring; 27. a stationary ring O-shaped ring; 28. a moving ring O-shaped ring; 29. the axle sleeve O type circle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a sealing part of a high-speed high-temperature drier comprises an end gland 1, a spring seal sleeve 8, a thermometer 20, a check valve 21 and a positioning ring 26, wherein the inner side of the end gland 1 is provided with a shaft sleeve 2, the inner side of the shaft sleeve 2 is provided with a shaft sleeve O-shaped ring 29, the end gland 1 is provided with a mounting hole 12, the end gland 1 is provided with a slide rod 14, the slide rod 14 is provided with an extension rod 15 through a limiting sleeve ring 16, one end of the extension rod 15 is connected with the positioning sleeve 7, the positioning sleeve 7 is provided with a fastening threaded hole 24, a fastening bolt 17 is arranged in the fastening threaded hole 24, the inner side of the fastening threaded hole 24 is provided with a double-layer sealing ring 25, the double-layer sealing ring 25 is in interference fit with the inner wall of the positioning sleeve 7, one side of the positioning sleeve 7 is provided with the positioning ring 26, one side of the positioning ring 26 is in, an inner fixing ring 3 is arranged on the inner side of an end gland 1, a fixed ring O-shaped ring 27 is arranged on the inner fixing ring 3, the fixed ring O-shaped ring 27 is in interference fit with the end gland 1, one side of the inner fixing ring 3 is in sliding contact with an inner rotating ring 4, a moving ring O-shaped ring 28 is arranged on the inner side of the inner rotating ring 4, a push ring 10 is arranged on one side of the inner rotating ring 4, which is far away from the inner fixing ring 3, two push rings 10 are arranged, a compression spring 11 is connected between the two push rings 10, an outer rotating ring 6 is arranged on one side of the push ring 10, which is far away from the inner rotating ring 4, an outer fixing ring 5 is arranged on the right side of the outer rotating ring 6, a threaded hole column 23 is arranged on a spring sleeve 8, an inner hexagonal screw 9 is arranged in the threaded hole column 23 in a matching manner, a probe 19 is arranged on the inner side of the end gland 1, one end, a check valve 21 is installed in the coolant inlet/outlet 13.
Interior solid fixed ring 3 and interior rotating ring 4 closely laminate and constitute revolution mechanic, and the external diameter size of interior rotating ring 4 is less than the internal diameter size of spring envelope 8, and interior rotating ring 4 and axle sleeve 2 constitute synchronous revolution mechanic, and interior solid fixed ring 3 is the positive ring structure of the smooth square cross-section of elasticity with interior rotating ring 4, and the stability of rotatory in-process is guaranteed to above-mentioned structure, prevents that interior rotating ring 4 from taking place skew and dislocation, guarantees the leakproofness.
The outer fixing ring 5 and the outer rotating ring 6 are tightly attached to form a rotating structure, the outer fixing ring 5 and the outer rotating ring 6 are both of elastic smooth square-section right circular ring structures, the outer diameter size of the outer rotating ring 6 is smaller than the inner diameter size of the spring envelope 8, the outer rotating ring 6 and the shaft sleeve 2 form a synchronous rotating structure, the structure ensures the stability in the rotating process, prevents the outer rotating ring 6 from deviating and dislocating, and ensures the sealing property.
The limiting lantern ring 16 and the sliding rod 14 form a sliding structure for changing the axial position of the positioning sleeve 7, the positioning sleeve 7 is a rigid plastic circular ring type structure, the inner diameter of the positioning sleeve 7 is smaller than the outer diameter of one end of the shaft sleeve 2, the positioning sleeve 7 is sleeved on the outer side of an installed shaft in the middle of the positioning sleeve 7 through a fastening bolt 17, the positioning sleeve 7 and the shaft are in sliding sleeve connection, and the structure facilitates positioning and installation of a sealing element.
The spring envelope 8 and the shaft sleeve 2 form a fixing structure through the inner hexagon screws 9, the spring envelope 8 is of a thin-wall cylindrical structure, the push rings 10 form a sliding structure on the inner side of the spring envelope 8, the two push rings 10 form a pressing fixing structure through the compression springs 11, the structure ensures that the push rings 10 are extruded towards the left side and the right side, the inner fixing ring 3 and the inner rotating ring 4 as well as the outer fixing ring 5 and the outer rotating ring 6 are tightly attached under certain pressure, and the sealing performance is ensured.
The cooling liquid access & exit 13 constitutes enclosed construction through thread sealing with check valve 21, and check valve 21 one end is connected with pipe and coolant liquid circulating device, and check valve 21 sets up about the sealing member axis symmetry and can't see from the main graph and be the symmetry setting, and only one in the figure, the cavity between end gland 1 and the spring envelope 8 is annotated and is had the coolant liquid, and above-mentioned structure is convenient for cool off the sealing member, prevents that the high temperature from influencing sealed effect.
The atmosphere end sealing ring 22 is in interference fit with the gap between the atmosphere end gland 18 and the end gland 1, the atmosphere end sealing ring 22 is in an elastic smooth square-section right circular ring structure, the sealing performance of the joint is guaranteed, the atmosphere end gland 18 and the end gland 1 are prevented from being directly contacted to be abraded, and the service life is prolonged.
The rotating ring O-shaped ring 28 is in interference fit with the inner rotating ring 4 and the outer rotating ring 6, the shaft sleeve O-shaped ring 29 is in interference fit with the inner wall of the shaft sleeve 2, and the shaft sleeve O-shaped ring 29, the static ring O-shaped ring 27 and the rotating ring O-shaped ring 28 are all elastic smooth square-section right circular ring structures, so that the sealing performance of the joint is ensured, the inner rotating ring 4, the outer rotating ring 6 and the shaft sleeve O-shaped ring 29 are prevented from being directly contacted with the shaft sleeve 2 to be abraded, and the service life is prolonged.
The working principle is as follows: when the sealing part of the high-rotating-speed high-temperature dryer is used, firstly, the positioning sleeve 7 is sleeved on a shaft part, the positioning sleeve 7 forms a sliding structure on the sliding rod 14 through the extension rod 15 and the limiting sleeve ring 16, the positioning sleeve 7 is of a rigid plastic ring type structure, the inner diameter size of the positioning sleeve 7 is smaller than the outer diameter size of one end of the shaft sleeve 2, the sealing part is convenient to coordinate with the shaft part when being installed, the positioning sleeve 7 forms a fixed structure through the fastening bolt 17, the positioning and the installation of the sealing part are convenient, a static ring O-shaped ring 27, a moving ring O-shaped ring 28, a shaft sleeve O-shaped ring 29 and an atmosphere end sealing ring 22 are arranged in the sealing part and are all elastic smooth square cross section regular ring structures, the loss caused by mutual friction between connecting pieces is avoided, the service life of the sealing part is prolonged, the sealing effect for long-time use is, the outer diameter of the inner rotating ring 4 is smaller than the inner diameter of the spring sleeve 8, the inner rotating ring 4 and the shaft sleeve 2 form a rotating structure, the outer fixing ring 5 and the outer rotating ring 6 are tightly attached to form a rotating structure, the outer diameter of the outer rotating ring 6 is smaller than the inner diameter of the spring sleeve 8, the outer rotating ring 6 and the shaft sleeve 2 form a rotating structure, the stability in the rotating process is guaranteed, the inner rotating ring 4 and the outer rotating ring 6 are prevented from deviating and dislocating, cooling liquid can be injected into the inner cavity of the end pressure cover 1, a cooling liquid inlet and outlet 13 and a check valve 21 are connected through threads in a sealing mode to form a closed structure, the check valve 21 is connected with a guide pipe and a cooling liquid circulating device, the check valve 21 is symmetrically arranged relative to the axis of a sealing element, cooling liquid is injected into a cavity between the end pressure cover 1 and the spring sleeve 8, a thermometer 20 is used, so as to ensure that the overall temperature of the seal is not too high, thereby completing a series of tasks, which are not described in detail in this specification, and which are well known to those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a high rotational speed high temperature desiccator sealing member, includes end gland (1), spring envelope (8), thermometer (20), check valve (21) and holding ring (26), its characterized in that: axle sleeve (2) is installed to end gland (1) inboard, axle sleeve O type circle (29) is installed to axle sleeve (2) inboard, mounting hole (12) have been seted up on end gland (1), and install slide bar (14) on end gland (1), install extension rod (15) through spacing lantern ring (16) on slide bar (14), extension rod (15) one end is connected with position sleeve (7), fastening screw hole (24) have been seted up on position sleeve (7), install fastening bolt (17) in fastening screw hole (24), and fastening screw hole (24) inboard installs double-deck sealing washer (25), one side of position sleeve (7) is equipped with holding ring (26), one side and the atmosphere end gland (18) contact of holding ring (26), and holding ring (16) press from both sides between position sleeve (7) and atmosphere end gland (18), install atmosphere end sealing washer (22) on atmosphere end gland (18), interior solid fixed ring (3) is installed to end gland (1) inboard, install quiet ring O type circle (27) on interior solid fixed ring (3), and interior solid fixed ring (3) one side and interior rotating ring (4) sliding contact, rotating ring O type circle (28) is installed to interior rotating ring (4) inboard, and one side that interior solid fixed ring (3) was kept away from in interior rotating ring (4) installs throw-out collar (10), throw-out collar (10) are provided with two altogether, be connected with compression spring (11) between two throw-out collars (10), outer rotating ring (6) is installed to one side that interior rotating ring (4) was kept away from in throw-out collar (10) to outer solid fixed ring (5) are installed on outer rotating ring (6) right side, threaded hole post (23) has been seted up on spring envelope (8), interior hexagonal screw (9) are installed in the matching in threaded hole post (23), probe (19) are installed to end gland (1) inboard, and probe (19) one end runs through end gland (1) and is connected with thermometer (20) to thermometer (20) are installed in the outside of end gland (1), coolant liquid access & exit (13) have been seted up on end gland (1) lateral wall, install check valve (21) in coolant liquid access & exit (13).
2. A high speed high temperature dryer seal as claimed in claim 1, wherein: the end gland (1) is matched with the mounting hole (12) through a bolt to form a fixing structure with the dryer frame, lubricating oil is arranged between the end gland (1) and the shaft sleeve (2), the end gland (1) and the shaft sleeve (2) form a rotating structure, and the shaft sleeve (2) is of a stepped shaft barrel structure.
3. A high speed high temperature dryer seal as claimed in claim 1, wherein: interior solid fixed ring (3) closely laminates with interior rotating ring (4) and constitutes revolution mechanic, the external diameter size of interior rotating ring (4) is less than the internal diameter size of spring envelope (8), and interior rotating ring (4) constitutes synchronous revolution mechanic with axle sleeve (2), interior solid fixed ring (3) are the positive ring structure of the smooth square cross-section of elasticity with interior rotating ring (4).
4. A high speed high temperature dryer seal as claimed in claim 1, wherein: the outer fixing ring (5) and the outer rotating ring (6) are tightly attached to form a rotating structure, the outer fixing ring (5) and the outer rotating ring (6) are both elastic smooth square-section right circular ring structures, the outer diameter of the outer rotating ring (6) is smaller than the inner diameter of the spring sleeve (8), and the outer rotating ring (6) and the shaft sleeve (2) form a synchronous rotating structure.
5. A high speed high temperature dryer seal as claimed in claim 1, wherein: spacing lantern ring (16) constitute the axial that sliding construction is used for changing position sleeve (7) with slide bar (14) and are located, position sleeve (7) are rigid plastic ring type structure, and the internal diameter size of position sleeve (7) is less than the one end external diameter of axle sleeve (2), the axle outside of installing in the middle of position sleeve (7) is established through fastening bolt (17) cover in position sleeve (7).
6. A high speed high temperature dryer seal as claimed in claim 1, wherein: the spring jacket (8) and the shaft sleeve (2) form a fixing structure through an inner hexagon screw (9), the spring jacket (8) is of a thin-wall cylindrical structure, the push rings (10) form a sliding structure on the inner side of the spring jacket (8), and the two push rings (10) form a pressing fixing structure through compression springs (11).
7. A high speed high temperature dryer seal as claimed in claim 1, wherein: the cooling liquid inlet and outlet (13) and the one-way valve (21) are connected through threads in a sealing mode to form a closed structure, one end of the one-way valve (21) is connected with a guide pipe and a cooling liquid circulating device, the one-way valve (21) is symmetrically arranged relative to the axis of the sealing element, and cooling liquid is injected into a cavity between the end pressing cover (1) and the spring sleeve (8).
8. A high speed high temperature dryer seal as claimed in claim 1, wherein: the atmosphere end sealing ring (22) is in interference fit with a gap between the atmosphere end gland (18) and the end gland (1), and the atmosphere end sealing ring (22) is in an elastic smooth square-section right circular ring structure.
9. A high speed high temperature dryer seal as claimed in claim 1, wherein: double-deck sealing washer (25) are interference fit with position sleeve (7) inner wall, quiet ring O type circle (27) are interference fit with end gland (1), rotating ring O type circle (28) and interior rotating ring (4) and outer rotating ring (6) are interference fit, axle sleeve O type circle (29) are interference fit with axle sleeve (2) inner wall, and axle sleeve O type circle (29), quiet ring O type circle (27) and rotating ring O type circle (28) are the right ring structure of the smooth square cross-section of elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011386155.5A CN112682512A (en) | 2020-12-01 | 2020-12-01 | Sealing part of high-rotating-speed high-temperature dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011386155.5A CN112682512A (en) | 2020-12-01 | 2020-12-01 | Sealing part of high-rotating-speed high-temperature dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112682512A true CN112682512A (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011386155.5A Pending CN112682512A (en) | 2020-12-01 | 2020-12-01 | Sealing part of high-rotating-speed high-temperature dryer |
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| CN (1) | CN112682512A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1206830A (en) * | 1967-02-08 | 1970-09-30 | Borg Warner | Mechanical seal with flushing arrangement |
| CN108730526A (en) * | 2018-06-01 | 2018-11-02 | 芜湖市中天密封件有限公司 | A kind of improved pyrolysis sludge dryer sealing element |
| CN208945984U (en) * | 2018-08-23 | 2019-06-07 | 江西中烟工业有限责任公司 | A kind of tooling for the swollen silk thread technique pump Rotation ring positioning of tobacco |
| CN209977254U (en) * | 2019-06-06 | 2020-01-21 | 温州重齐机械设备有限公司 | Mechanical sealing element |
| CN210068942U (en) * | 2019-06-06 | 2020-02-14 | 温州重齐机械设备有限公司 | Mechanical seal |
| CN210757466U (en) * | 2019-09-17 | 2020-06-16 | 中密控股股份有限公司 | Shaft end seal mounting tool for rotary machine |
-
2020
- 2020-12-01 CN CN202011386155.5A patent/CN112682512A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1206830A (en) * | 1967-02-08 | 1970-09-30 | Borg Warner | Mechanical seal with flushing arrangement |
| CN108730526A (en) * | 2018-06-01 | 2018-11-02 | 芜湖市中天密封件有限公司 | A kind of improved pyrolysis sludge dryer sealing element |
| CN208945984U (en) * | 2018-08-23 | 2019-06-07 | 江西中烟工业有限责任公司 | A kind of tooling for the swollen silk thread technique pump Rotation ring positioning of tobacco |
| CN209977254U (en) * | 2019-06-06 | 2020-01-21 | 温州重齐机械设备有限公司 | Mechanical sealing element |
| CN210068942U (en) * | 2019-06-06 | 2020-02-14 | 温州重齐机械设备有限公司 | Mechanical seal |
| CN210757466U (en) * | 2019-09-17 | 2020-06-16 | 中密控股股份有限公司 | Shaft end seal mounting tool for rotary machine |
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Application publication date: 20210420 |
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| RJ01 | Rejection of invention patent application after publication |