CN213575548U - Mechanical sealing device of supporting roller - Google Patents
Mechanical sealing device of supporting roller Download PDFInfo
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- CN213575548U CN213575548U CN202021989926.5U CN202021989926U CN213575548U CN 213575548 U CN213575548 U CN 213575548U CN 202021989926 U CN202021989926 U CN 202021989926U CN 213575548 U CN213575548 U CN 213575548U
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Abstract
The utility model provides a mechanical seal device of backing roll, including the mounting panel, mechanical rotating ring and mechanical quiet ring, mechanical quiet ring is installed and is linked to each other with the mounting panel through quiet rubber sleeve in quiet rubber sleeve, mechanical rotating ring is installed in moving rubber sleeve, the lower terminal surface of mechanical rotating ring offsets with the up end developments of the quiet ring of machinery, quiet rubber sleeve is the ripple architecture, quiet rubber sleeve external pressure is equipped with the regulating plate, the regulating plate passes through adjusting bolt and links to each other with the mounting panel, and realize clearance fine setting between mechanical quiet ring and the mechanical rotating ring through adjusting bolt, the adjusting bolt overcoat is equipped with a spring, spring-supported is between regulating plate and mounting panel, make mechanical quiet ring have the trend of upwards tightly supporting with mechanical rotating ring all the time. The utility model has the advantages of simple and reasonable structure, sealing performance is good, the temperature resistant is stand wear and tear, non-deformable, long service life, saving energy consumption realize the zero backward flow of liquid, thoroughly eliminate expend with heat and contract with cold and the leakage that the increase of wearing and tearing clearance arouses, can be used to the backing roll of the stainless steel cold line annealing pickling of similar electrolysis with neutral salt sealed.
Description
Technical Field
The utility model relates to a stainless steel production technical field, concretely relates to mechanical seal device of backing roll for the sealing of stainless steel cold wire annealing pickling continuous unit electrolytic pickling cell body backing roll.
Background
The hot strip annealing pickling line in stainless steel production is used for processing AISI 300 series (304, 304L, 316 and 316L), AISI 400 series (ferritic steel grades 409 and 430), martensitic steel grades: 410 and 420 (including SUS420J1 and SUS420J2) cold-rolled stainless steel strips. The specification is as follows: the width is 650mm to 1350 mm; the thickness is 0.3(0.25) mm to 3.0mm, and the product is unqualified +/-10%; the highest process speed is 80 m/min. The main equipment consists of an uncoiler, an inlet loop, an annealing furnace, an acid washing section, an outlet loop, a coiler and the like. The pickling section comprises an electrolytic pickling section which takes sodium sulfate as electrolyte, an electrochemical pickling section which takes nitric acid as electrolyte, a pickling section which takes nitric acid and hydrofluoric acid as mixed acid, a scrubbing and cleaning section and a final washing section. In order to obtain good surface quality of the strip steel, the strip steel must be completely immersed in a neutral salt medium, so that a supporting roller is arranged between each tank body and each tank body to drive the strip steel and play a role in auxiliary supporting. In order to avoid the leakage of neutral salt in the tank body, a sealing device is required to be arranged between the tank body and the supporting roller. At present, a Harvard labyrinth sealing device is adopted to seal between a groove body and a supporting roller, and the following problems exist in the production process:
the Harvard labyrinth seals made of PPH materials on two sides of each supporting roller have the advantages that due to the material particularity, the neutral salt is high in temperature, the seals are heated and deformed, the seal gaps are gradually enlarged in the using process, the problems of short using period and frequent external leakage of the neutral salt exist for a long time, and due to the fact that the neutral salt medium has certain characteristics of corrosivity, permeability, easiness in crystallization at normal temperature and the like, the situation of dirty and messy defects of the field environment is caused, and raw materials are wasted;
secondly, the haver labyrinth seal cannot be processed in time after external leakage occurs, the unit needs to be stopped and adjusted, and the disassembly and assembly process is complex;
the amount of backflow of neutral salt medium in the labyrinth seal of the three-half and Harvard is large, the power of a required circulating pump is increased, and the electric energy is high
Therefore, there is a need for an improved sealing device to solve the problem of leakage of neutral salts.
Disclosure of Invention
The utility model aims to solve the technical problem that a mechanical sealing device of backing roll that simple structure is reasonable, sealing performance is good, long service life is provided to foretell technical current situation.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a mechanical seal for a support roll, comprising: mechanical seal device includes the mounting panel, mechanical rotating ring and mechanical quiet ring, the mounting panel is fixed on the tank casing, mechanical quiet ring is installed and is connected with the mounting panel through quiet rubber sleeve in quiet rubber sleeve, mechanical rotating ring is installed in moving rubber sleeve, install on the backing roll through moving rubber sleeve, mechanical rotating ring and the coaxial setting of mechanical quiet ring, and the lower terminal surface of mechanical rotating ring offsets with the up end developments of the quiet ring of machinery, quiet rubber sleeve is for having elastic ripple structure, quiet rubber sleeve external pressure is equipped with an regulating plate, the regulating plate is connected with the mounting panel through adjusting bolt, and realize the clearance fine setting between the quiet ring of machinery and the mechanical rotating ring through adjusting bolt, the adjusting bolt overcoat is equipped with a spring, spring support is between regulating plate and mounting panel, make the quiet ring of machinery have the trend that upwards supports with mechanical rotating ring looks fastening all the time.
As an improvement, the mechanical static ring is a circular sealing sleeve with the upper end and the lower end reducing, an annular step groove for placing the mechanical static ring is formed in the middle of the upper end of the static rubber sleeve, the mechanical static ring is embedded in the annular step groove, and the reducing part of the upper end of the mechanical static ring extends out of the static rubber sleeve.
And the mechanical movable ring is in a ring shape, the middle part of the lower end of the movable rubber sleeve is concavely provided with an annular groove for the mechanical movable ring to be embedded in, the mechanical movable ring is embedded in the movable rubber sleeve, and the lower end of the mechanical movable ring extends out of the movable rubber sleeve and is abutted against the upper end of the mechanical static ring.
Furthermore, the upper part of the movable rubber sleeve is of a reducing circular sleeve structure, the movable rubber sleeve is sleeved on the supporting roller in a sealing manner, and the upper end of the movable rubber sleeve is positioned through the stop ring.
Further, the lower extreme of quiet rubber sleeve is ring plate, and the middle part of quiet rubber sleeve is the corrugated structure, and the shaping has the recess that supplies the mounting panel embedding between ring plate and corrugated structure, and the mounting panel has recess matched with circular port, and quiet rubber sleeve passes the circular port of mounting panel from the below and makes the mounting panel inlay in the recess between ring plate and corrugated structure, and the regulating plate cover is established in the upper end of the corrugated structure of quiet rubber sleeve, is connected with the mounting panel through adjusting bolt.
Still further, the regulating plate is a circular plate, a circular groove for embedding the regulating plate is concavely arranged between the upper end of the corrugated structure of the static rubber sleeve and the outer wall of the static rubber sleeve, a plurality of connecting lugs are convexly arranged at intervals on the periphery of the regulating plate, connecting holes are formed in the connecting lugs, corresponding threaded holes are formed in the mounting plate in the axial direction, corresponding through holes are formed in the circular plate at the lower end of the static rubber sleeve, regulating bolts penetrate through the connecting holes and are screwed into the threaded holes to connect the regulating plate, the static rubber sleeve and the mounting plate together, the pressing force of the mechanical movable ring and the mechanical static ring is regulated through the regulating bolts, and when the regulating bolts are regulated in place, the stopping ring is screwed down and fixed.
Further, the static rubber sleeve and the movable rubber sleeve are acid-resistant and high-temperature-resistant fluororubber sleeves.
And finally, the mounting plate and the adjusting plate are stainless steel plates, and a plurality of mounting holes are formed in the edge of the mounting plate.
Compared with the prior art, the utility model has the advantages of: the original Harvard labyrinth sealing device is improved into a dynamic and static ring mechanical sealing device, and meanwhile, the original PPH material is improved into a mechanical dynamic and static ring, a fluororubber sleeve and a stainless steel supporting plate, so that the strength is increased, the temperature and wear resistance is realized, and the service life is effectively prolonged; the mechanical static ring is connected with the mounting plate through a static rubber sleeve and an adjusting plate, and the fine adjustment of the clearance between the mechanical static ring and the mechanical static ring is realized through an adjusting nut. The utility model has the characteristics of simple structure is reasonable, sealing performance is good, temperature resistant stand wear and tear, non-deformable, and long service life, saving energy consumption simultaneously can realize the zero backward flow of liquid, thoroughly eliminate expend with heat and contract with cold and the leakage that the increase of wearing and tearing clearance arouses, the utility model discloses can be used to the similar sealed of backing roll with the stainless steel cold wire annealing pickling of neutral salt electrolysis.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the mounting plate;
FIG. 3 is a schematic view of the adjusting plate;
FIG. 4 is a schematic structural view of a mechanical rotating ring;
FIG. 5 is a schematic structural view of a mechanical stationary ring;
FIG. 6 is a schematic structural view of a static rubber sleeve;
FIG. 7 is a schematic view of a stopper ring.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 7, a mechanical sealing device of a supporting roller comprises a mounting plate 1, an adjusting plate 2, a static rubber sleeve 3, a dynamic rubber sleeve 4, a mechanical dynamic ring 6 and a mechanical static ring 5, wherein the mounting plate 1 is fixed on a tank shell, the mechanical static ring 5 is arranged in the static rubber sleeve 3 and connected with the mounting plate 1 through the static rubber sleeve 3, the mechanical dynamic ring 6 is arranged in the dynamic rubber sleeve 4 and arranged on the supporting roller 10 through the dynamic rubber sleeve 4, the mechanical dynamic ring 6 and the mechanical static ring 5 are coaxially arranged, the lower end surface of the mechanical dynamic ring 6 dynamically offsets with the upper end surface of the mechanical static ring 5, the static rubber sleeve 3 is of an elastic corrugated structure, the adjusting plate 2 is sleeved outside the static rubber sleeve 3, the adjusting plate 2 is connected with the mounting plate 1 through an adjusting bolt 8, and fine adjustment of a gap between the mechanical static ring 5 and the mechanical dynamic ring 6 is realized through the adjusting bolt 8, a spring 9 is sleeved outside the adjusting bolt 8, and the spring 9 is supported between the adjusting plate 2 and the mounting plate 1, so that the mechanical static ring 5 has a tendency of always upwards abutting against the mechanical dynamic ring 6.
The concrete structure is as follows: the mechanical stationary ring 5 is a circular sealing sleeve with the upper end and the lower end reduced in diameter, an annular step groove 33 for the mechanical stationary ring 5 to be placed in is formed in the middle of the upper end of the stationary rubber sleeve 3, the mechanical stationary ring 5 is embedded in the annular step groove 33, and the reduced diameter part 51 of the upper end of the mechanical stationary ring 5 extends out of the stationary rubber sleeve 3; the mechanical rotating ring 6 is in a ring shape, the middle of the lower end of the movable rubber sleeve 4 is concavely provided with an annular groove for the mechanical rotating ring 6 to be embedded, the mechanical rotating ring 6 is embedded in the movable rubber sleeve 4, and the lower end of the mechanical rotating ring 6 extends out of the upper end of the movable rubber sleeve 4 to abut against the upper end of the mechanical static ring 5.
The upper part of the movable rubber sleeve 4 is of a reducing circular sleeve structure, the movable rubber sleeve 4 is sleeved on the supporting roller 10 in a sealing manner, and the upper end of the movable rubber sleeve 4 is positioned through the stop ring 7; the lower end of the static rubber sleeve 3 is a circular plate 31, the middle part of the static rubber sleeve 3 is a corrugated structure 32, a groove 34 for embedding the mounting plate 1 is formed between the circular plate 31 and the corrugated structure 32, the mounting plate 1 is provided with a circular hole 11 matched with the groove 34, the static rubber sleeve 3 penetrates through the circular hole 11 of the mounting plate 1 from the lower part to enable the mounting plate 1 to be embedded in the groove 34 between the circular plate 31 and the corrugated structure 32, the adjusting plate 2 is a circular plate, a circular groove 35 for embedding the adjusting plate 2 is concavely arranged between the upper end of the corrugated structure 32 of the static rubber sleeve 3 and the outer wall of the static rubber sleeve 3, a plurality of connecting lugs 21 are convexly arranged at the periphery of the adjusting plate 2 at intervals, connecting holes 22 are formed in the connecting lugs 21, corresponding threaded holes 12 are axially formed in the mounting plate 1, corresponding through holes 35 are formed in the circular plate 31 at the lower end of the static rubber sleeve, The adjusting plate 2 and the static rubber sleeve 3 are connected with the mounting plate 1 by screwing into the threaded hole 12, the pressing force of the mechanical movable ring 6 and the mechanical static ring 5 is adjusted through the adjusting bolt 8, and when the adjusting bolt 8 is adjusted to be in place, the stop ring 7 is screwed and fixed with the supporting roller 10.
The static rubber sleeve 3 and the dynamic rubber sleeve 4 are acid-resistant and high-temperature-resistant fluororubber sleeves; the mounting plate 1 and the adjusting plate 2 are stainless steel plates, and a plurality of mounting holes 13 are formed in the edge of the mounting plate 1.
The specific installation process is as follows:
1. firstly, assembling a mechanical movable ring 6 and a mechanical static ring 5 with a movable rubber sleeve 4 and a static rubber sleeve 3 respectively in place;
2. temporarily fixing the mounting plate 1, the assembled mechanical movable ring 6 and the assembled mechanical static ring 5 on a new roller;
3. a new roller is hoisted to the roller frame, the mounting plate 1 is temporarily fixed, and the roller is convenient to be fixed step by step after being aligned;
4. mounting a static rubber sleeve 3 and an adjusting plate 2;
5. the pressing force of the mechanical movable ring 6 and the mechanical static ring 5 is adjusted by screwing the adjusting bolt 8 on the adjusting plate 2, and the stop ring 7 is fixed after the mechanical seal gap is adjusted.
The implementation effect is as follows:
after the mechanical sealing device of the embodiment is applied for more than one year, the problems of body leakage and the like do not occur, and the service life of the sealing device can be prolonged to more than 12 months from the original 4 months after improvement. Meanwhile, the power of the pump motor can be reduced from original 45KW to 37KW, and the pump flow is reduced from original 300m3The reduction of/h is currently 250m3And h, the power consumption of the neutral salt circulating pump is effectively reduced, and the electricity cost of the unit is saved by 8.3 ten thousand yuan each year. Meanwhile, interchangeability of a circulating pump of the unit is realized, and spare part inventory is reduced. The neutral salt zero backflow at the end part of the supporting roller can be realized, the phenomena of running, overflowing, dripping and leaking of a neutral salt medium are eliminated, and the field environment is improved.
Field of application
For the stainless steel cold wire annealing and pickling similar to the neutral salt electrolysis, the mechanical sealing device of the supporting roller can be improved according to the method, and can be completely popularized and used in the similar enterprises.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A mechanical seal for a support roll, comprising: mechanical seal device includes the mounting panel, mechanical rotating ring and mechanical quiet ring, the mounting panel is fixed on the tank casing, mechanical quiet ring is installed and is connected with the mounting panel through quiet rubber sleeve in quiet rubber sleeve, mechanical rotating ring is installed in moving rubber sleeve, install on the backing roll through moving rubber sleeve, mechanical rotating ring and the coaxial setting of mechanical quiet ring, and the lower terminal surface of mechanical rotating ring offsets with the up end developments of the quiet ring of machinery, quiet rubber sleeve is for having elastic ripple structure, quiet rubber sleeve external pressure is equipped with an regulating plate, the regulating plate is connected with the mounting panel through adjusting bolt, and realize the clearance fine setting between the quiet ring of machinery and the mechanical rotating ring through adjusting bolt, the adjusting bolt overcoat is equipped with a spring, spring support is between regulating plate and mounting panel, make the quiet ring of machinery have the trend that upwards supports with mechanical rotating ring looks fastening all the time.
2. A mechanical seal according to claim 1 wherein: the mechanical static ring is a circular sealing sleeve with the upper end and the lower end reducing, an annular step groove for placing the mechanical static ring is formed in the middle of the upper end of the static rubber sleeve, the mechanical static ring is embedded in the annular step groove, and the reducing part of the upper end of the mechanical static ring extends out of the static rubber sleeve.
3. A mechanical seal according to claim 2 wherein: the mechanical rotating ring is in a ring shape, an annular groove for embedding the mechanical rotating ring is concavely arranged in the middle of the lower end of the movable rubber sleeve, the mechanical rotating ring is embedded in the movable rubber sleeve, and the lower end of the mechanical rotating ring extends out of the movable rubber sleeve and abuts against the upper end of the mechanical static ring.
4. A mechanical seal according to claim 3 wherein: the upper part of the movable rubber sleeve is of a reducing circular sleeve structure, the movable rubber sleeve is sleeved on the supporting roller in a sealing mode, and the upper end of the movable rubber sleeve is positioned through the stop ring.
5. A mechanical seal according to claim 4 wherein: the lower extreme of quiet rubber sleeve is the ring plate, and the middle part of quiet rubber sleeve is the corrugated structure, and the shaping has the recess that supplies the mounting panel embedding between ring plate and corrugated structure, and the mounting panel has recess matched with circular port, and the circular port that quiet rubber sleeve passed the mounting panel from the below makes the mounting panel inlay in the recess between ring plate and corrugated structure, and the regulating plate cover is established in the upper end of the corrugated structure of quiet rubber sleeve, is connected with the mounting panel through adjusting bolt.
6. A mechanical seal according to claim 5 wherein: the regulating plate is a circular plate, a circular groove for embedding the regulating plate is concavely arranged between the upper end of a corrugated structure of the static rubber sleeve and the outer wall of the static rubber sleeve, a plurality of connecting lugs are convexly arranged at intervals on the periphery of the regulating plate, connecting holes are formed in the connecting lugs, corresponding threaded holes are axially formed in the mounting plate, corresponding through holes are formed in the circular plate at the lower end of the static rubber sleeve, the regulating bolt penetrates through the connecting holes, the regulating plate is screwed into the threaded holes, the static rubber sleeve is connected with the mounting plate, the pressing force of the mechanical movable ring and the mechanical static ring is regulated through the regulating bolt, and when the regulating bolt is regulated in place, the stopping ring is screwed up to be fixed with.
7. A mechanical seal according to any of claims 1 to 6 wherein: the static rubber sleeve and the movable rubber sleeve are acid-resistant and high-temperature-resistant fluororubber sleeves.
8. A mechanical seal according to any of claims 1 to 6 wherein: the mounting plate and the adjusting plate are stainless steel plates, and a plurality of mounting holes are formed in the edge of the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021989926.5U CN213575548U (en) | 2020-09-11 | 2020-09-11 | Mechanical sealing device of supporting roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021989926.5U CN213575548U (en) | 2020-09-11 | 2020-09-11 | Mechanical sealing device of supporting roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213575548U true CN213575548U (en) | 2021-06-29 |
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ID=76570946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021989926.5U Active CN213575548U (en) | 2020-09-11 | 2020-09-11 | Mechanical sealing device of supporting roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213575548U (en) |
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2020
- 2020-09-11 CN CN202021989926.5U patent/CN213575548U/en active Active
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