CN214946349U - External sealing device for rear sealing packing of waste rubber continuous thermal cracking kettle - Google Patents
External sealing device for rear sealing packing of waste rubber continuous thermal cracking kettle Download PDFInfo
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- CN214946349U CN214946349U CN202121354043.1U CN202121354043U CN214946349U CN 214946349 U CN214946349 U CN 214946349U CN 202121354043 U CN202121354043 U CN 202121354043U CN 214946349 U CN214946349 U CN 214946349U
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Abstract
The utility model provides an external sealing device for a rear sealing packing of a waste rubber continuous thermal cracking kettle, which belongs to the technical field of sealing of waste rubber continuous thermal cracking equipment, and at least comprises an external packing pressure plate and a packing gland, wherein the external packing pressure plate is arranged outside a rear sealing cabin and is connected with the rear sealing cabin through a flange, and the external packing pressure plate is sealed with the rear sealing cabin through a sealing element; optionally, the seal is a metal-wrapped graphite gasket. The packing gland, the external packing plate and the rear sealing cabin flange are fixedly connected through the long screw, a gap is reserved between the packing gland and the external packing plate, and the external packing plate is pressed to the rear sealing cabin. The utility model provides a sealed effect that sealing device exists behind the current thermal cracking cauldron poor, seal time is short, overhaul with high costs, the maintenance consumptive material is high, overhaul that workman's operational environment is abominable, the big technical problem of potential safety hazard, have sealed effectual, long service life, change convenient, with low costs, need not to change the characteristics of original equipment structure.
Description
Technical Field
The utility model belongs to the technical field of the continuous pyrolysis equipment of old and useless rubber is sealed, especially, relate to an external sealing device of sealing packing behind the continuous pyrolysis cauldron of old and useless rubber.
Background
The waste tires are called black pollution, and a large amount of waste tires are stored in the open air in a centralized mode, so that the waste tires not only occupy space and pollute the environment, but also are stacked in a large amount and hidden danger is buried for fire disasters. With the rapid increase of the number of discarded tires, the discarded tires cause more and more pollution to the environment, and in recent years, the recycling and reutilization of the discarded tires is a major environmental protection subject at home and abroad. Thermal cracking technology is known as one of the best ways to solve the problem of scrap tires, and the key of thermal cracking technology is to ensure the sealing performance of the thermal cracking system while ensuring the continuous and efficient operation of the thermal cracking system, so as to prevent the potential safety hazard caused by the entry of outside air or the ejection of high-temperature gas inside the thermal cracking system.
The sealing at the rear end of the existing thermal cracking kettle basically adopts a flexible packing soft sealing mode for a rear sealing cabin and a packing gland, however, the sealing surface of the device is arranged in the sealing cabin, the packing is rotationally extruded by a kettle body along with the operation of equipment, the air leakage is caused within 3-7 days due to abrasion, the pyrolysis gas leaks from the sealing part, the maintenance is forced to be stopped, the maintenance is difficult, in addition, the packing is tightly extruded and pressed by the kettle body and the sealing cabin after the packing gland is removed because the sealing surface is arranged in the sealing cabin, the packing cannot be taken out easily, the packing needs to be manually taken out, the time and the labor are consumed, the packing cannot be taken out and damaged in the hands of responsible workers, and the packing is directly plugged into a new packing, so that the operation of the kettle body is brought into the rear sealing cabin. And the sealing effect can be completed only by 3-5 packing elements in the existing structure, thousands of yuan is needed for replacing the packing element once, two workers are needed to complete the sealing operation within one day, and the time and the labor are consumed.
In addition, there are other rear sealing structures including mechanical seals, etc. that are sealed by a method of rubbing a soft material with a hard material using a hard material to consume the soft material by forming a rubbing surface with a ball-milled soft material and an alloy hard material. However, this method is completely different from the flexible dynamic seal, and the equipment investment cost is high, so that the original equipment structure needs to be completely abandoned. And partial cracking kettle body structure can not be subjected to mechanical seal reconstruction, so the structure and position of the flexible sealing surface need to be reconstructed.
SUMMERY OF THE UTILITY MODEL
The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below to provide a more concise and understandable description of the other features, objects, and advantages of the application.
The utility model provides an external sealing device of sealing packing behind continuous thermal cracking cauldron of old and useless rubber has solved the sealed effect that sealing device exists behind the current thermal cracking cauldron poor, seal time is short, the maintenance cost is high, the maintenance consumptive material is high, it is abominable to overhaul workman's operation environment, the big technical problem of potential safety hazard, has sealed effectual, long service life, change convenience, with low costs, need not to change the characteristics of original equipment structure.
The utility model discloses an external sealing device of sealing packing behind continuous pyrolysis cauldron of old and useless rubber, include
The external packing pressure plate is arranged outside the rear sealing bin, is connected with the rear sealing bin through a flange and is sealed with the rear sealing bin through a sealing element;
the packing gland is fixedly connected with the external packing pressure plate and the rear sealing cabin flange through long screws, a gap is reserved between the packing gland and the external packing pressure plate, and the external packing pressure plate is pressed towards the rear sealing cabin;
the externally-arranged pressure plate of the packing further comprises
The accommodating cavities are circumferentially distributed along the external packing pressure plate;
the connecting flange is connected with the flange of the rear sealing bin and is circumferentially distributed along the outer side of the external pressure plate of the packing;
the anti-displacement boss is arranged along the circumferential direction of the bottom of the accommodating cavity;
and the reinforcing rib plate is connected with the displacement-preventing boss and the connecting flange.
In some embodiments, the external packing pressing disc is divided into two semicircular structures along the diameter direction; the external pressure disk of packing still includes
The wire cutting line is arranged between the two semicircular structures;
and the positioning plates are arranged at the connecting positions of the two semicircular structures and are connected with the displacement-preventing bosses and the connecting flange.
In some embodiments, the externally-arranged pressure plate further comprises
And the bolts are uniformly distributed along the circumferential direction of the connecting flange.
In some of these embodiments, the seal is a metal-wrapped graphite gasket.
In some embodiments, the width of a gap between the packing gland and the packing external pressure plate is 18 mm.
In some of these embodiments, the locating plate comprises
A cylindrical positioning pin is arranged on the outer side of the cylinder,
and a connecting bolt.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides an external sealing device of sealing packing behind continuous thermal cracking cauldron of old and useless rubber has sealed effectual, long service life, change convenient, with low costs, need not to change the characteristics of original equipment structure.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a schematic structural view of a packing external pressure plate of a rear seal packing external sealing device provided in an embodiment of the present invention;
fig. 2 is a schematic view illustrating installation and connection of an external sealing device for a rear seal packing according to an embodiment of the present invention;
description of the drawings: 1. the packing is externally arranged on the pressure plate; 11. an accommodating chamber; 12. a connecting flange; 13. a displacement prevention boss; 14. reinforcing rib plates; 15. positioning a plate; 16. a bolt; 2. and (6) packing gland bush.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described and illustrated with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments provided by the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It is obvious that the drawings in the following description are only examples or embodiments of the invention, from which it is possible for a person skilled in the art to apply the invention to other similar situations without inventive effort. Moreover, it will be appreciated that in the development of any such actual embodiment, as in any specific implementation, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as is commonly understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention are not to be construed as limiting the number, but may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description may not be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The utility model relates to a "a plurality of" means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The embodiment of the utility model provides an external sealing device of sealed packing behind continuous pyrolysis cauldron of old and useless rubber, figure 1-2 are according to the utility model discloses the external sealing device's of back sealed packing structural schematic diagram and installation connection diagram of embodiment. Referring to fig. 1-2, the device at least comprises an external packing pressure plate 1 and a packing gland 2, wherein the external packing pressure plate 1 is arranged outside a rear sealed cabin, is connected with the rear sealed cabin through a flange and is sealed with the rear sealed cabin through a sealing element; optionally, the seal is a metal-wrapped graphite gasket. The packing gland 2, the external packing pressure plate 1 and the rear sealing cabin flange are fixedly connected through a long screw, a gap is reserved between the packing gland and the external packing pressure plate 1, and the external packing pressure plate 1 is pressed to the rear sealing cabin. Optionally, the width of a gap between the packing gland 2 and the packing external pressure plate 1 is 18 mm.
The utility model provides an external sealing device for a packing at the rear sealing part of a waste rubber continuous thermal cracking kettle, which improves the use environment of a sealing packing, reduces the use quantity of the packing and obviously prolongs the use period of the packing; especially, the equipment maintenance operation is simple, the maintenance workload is obviously reduced, and the maintenance labor cost and the material cost are obviously reduced. The flexible sealing disc root of the existing rear sealing cabin sealing device is pressed in the rear sealing cabin by the packing gland 2, so that the packing is deeply contacted with high-temperature oil gas, the service life of the flexible packing is greatly reduced, the machine is stopped and replaced once in 3-7 days, and the existing thermal cracking line can not reach the yield target and the profit target completely. The device is additionally provided with a set of external packing pressure plate 1 on the basis of the original device, and the flexible packing is arranged outside the sealed cabin, so that the sealing structure extends into the deep part of the sealed cabin from the original position, is in excessive contact with high-temperature oil gas, is far away from the inside of the sealed cabin at present, and is arranged outside the sealed cabin, and the surrounding environment of the sealing structure is optimized; the service life of flexible packing has been prolonged greatly, can prolong twice live time, in addition, because configuration optimization, greatly reduced cost of labor, time cost, material cost during the maintenance, improved workman's maintenance environment, need not to go deep into the sealed cabin and draw the packing, only need open external clamp plate can easily take out. The device has considered that the existing sealed form that singly leans on packing gland 2 to compress tightly the packing is unsuitable to the actual production operating mode, and seal structure is in the complex environment of high temperature, high corruption, high interaction force between reation kettle and the sealed cabin for a long time, and the frequent pressure transform of following the negative pressure malleation is very big examination to seal structure, and the device optimizes seal structure's operational environment as far as possible, makes temperature, corrosivity reduce, and interaction force weakens, has avoided the loss of complex environment to the structure during operation.
The externally-arranged packing pressure plate 1 further comprises a containing cavity 11, a connecting flange 12, an anti-displacement boss 13 and a reinforcing rib plate 14; the accommodating cavities 11 are circumferentially distributed along the external packing pressure plate 1, and the accommodating cavities 11 accommodate a plurality of packing to play a role in sealing; the connecting flange 12 is connected with a flange of the rear sealed cabin and is circumferentially distributed along the outer side of the external packing pressure plate 1; the anti-displacement boss 13 is circumferentially arranged along the bottom of the accommodating cavity 11, so that the packing is prevented from being displaced by acting force; the reinforcing rib plate 14 is connected with the displacement-preventing boss 13 and the connecting flange 12, so that the integral structure is reinforced, and the large-scale cracking kettle is suitable for strong acting force during working. Optionally, the externally-arranged packing pressure plate 1 is divided into two semicircular structures along the diameter direction; the externally-arranged packing pressure plate 1 further comprises a wire cutting line and a positioning plate 15, wherein the wire cutting line is arranged between the two semicircular structures to divide the externally-arranged packing pressure plate 1 into two halves, so that a large amount of extra workload caused by dismantling other parts during loading and unloading is avoided; the positioning plate 15 is arranged at the connecting position of the two semicircular structures and connected with the displacement-preventing boss 13 and the connecting flange 12, so that the two half structures can be aligned after welding, wire cutting and installation, and the influence of various processing deformations on the position of the whole structure is avoided. Further, the externally-arranged pressure plate 1 of packing still includes along the bolt 16 of flange 12 circumference equipartition. Optionally, the positioning plate 15 includes a cylindrical positioning pin and a connecting bolt, and the positioning action of the positioning pin is used for aligning the position, so that the influence of various processing deformations on the position of the whole structure is avoided.
The working process of the external sealing device for the packing at the rear sealing part comprises the following steps:
the packing gland 2 is connected with the packing external pressure plate 1 and the rear seal cabin inlet flange plate through long screws, the packing external pressure plate 1 and the rear seal cabin flange are sealed through a metal winding graphite gasket, a gap of 18mm is reserved between the packing gland 2 and the packing external pressure plate and used for placing a flexible graphite packing as a seal surface of a whole system, and when the equipment runs, the surface of the flexible graphite packing is removed to form a dynamic friction surface to rotate relative to a kettle body so as to perform dynamic seal; and the rest parts are immovable parts and are used as support structures of the sealing surfaces. When the equipment is operated, the spiral blades arranged in the reaction kettle are used for conveying rubber, the outside of the reaction kettle is heated by hot air, the internal temperature of the reaction kettle reaches 350-400 ℃, and the materials are pyrolyzed during the conveying from the front end to the rear end of the reaction kettle of 20m, so that the materials are completely decomposed into oil gas, carbon slag and steel wires; all pass through a rear sealed cabin at the rear end of the reaction kettle, oil gas enters a condensing system through the upper part of the rear sealed cabin, and carbon slag and steel wires enter a slag discharging system through the lower part. High temperature oil gas is necessary to leak from the non-absolute seal position when passing through the outlet, and the oil gas can hardly leak from the joint and enters the condensing system through the arrangement of the device. When the equipment runs to reach the maintenance period, the flexible packing is seriously worn, and oil gas begins to leak; only need not hard up packing gland 2, move along, pull down the bolt 16 of the external pressure disk 1 of packing and can lift external packing gland 2 off, easily take out the packing, more renew the packing and restore external pressure disk 1 of packing again, fastening packing gland 2 can accomplish flexible packing and change, and easy operation has thoroughly solved the complicated maintenance process before.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The utility model provides an external sealing device of sealed packing behind continuous thermal cracking cauldron of old and useless rubber which characterized in that: comprises that
The external packing pressure plate is arranged outside the rear sealing bin, is connected with the rear sealing bin through a flange and is sealed with the rear sealing bin through a sealing element;
the packing gland is fixedly connected with the external packing pressure plate and the rear sealing cabin flange through long screws, a gap is reserved between the packing gland and the external packing pressure plate, and the external packing pressure plate is pressed towards the rear sealing cabin;
the externally-arranged pressure plate of the packing further comprises
The accommodating cavities are circumferentially distributed along the external packing pressure plate;
the connecting flange is connected with the flange of the rear sealing bin and is circumferentially distributed along the outer side of the external pressure plate of the packing;
the anti-displacement boss is arranged along the circumferential direction of the bottom of the accommodating cavity;
and the reinforcing rib plate is connected with the displacement-preventing boss and the connecting flange.
2. The external sealing device of back seal packing of claim 1, characterized in that: the external pressure plate of the packing is divided into two semicircular structures along the diameter direction; the external pressure disk of packing still includes
The wire cutting line is arranged between the two semicircular structures;
and the positioning plates are arranged at the connecting positions of the two semicircular structures and are connected with the displacement-preventing bosses and the connecting flange.
3. The external sealing device of back seal packing of claim 1, characterized in that: the external pressure disk of packing still includes
And the bolts are uniformly distributed along the circumferential direction of the connecting flange.
4. The external sealing device of back seal packing of claim 1, characterized in that: the sealing element is a metal-wound graphite gasket.
5. The external sealing device of back seal packing of claim 1, characterized in that: the width of a gap between the packing gland and the external packing pressure plate is 18 mm.
6. The external sealing device of back seal packing of claim 2, characterized in that: the positioning plate comprises
A cylindrical positioning pin is arranged on the outer side of the cylinder,
and a connecting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121354043.1U CN214946349U (en) | 2021-06-17 | 2021-06-17 | External sealing device for rear sealing packing of waste rubber continuous thermal cracking kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121354043.1U CN214946349U (en) | 2021-06-17 | 2021-06-17 | External sealing device for rear sealing packing of waste rubber continuous thermal cracking kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214946349U true CN214946349U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121354043.1U Active CN214946349U (en) | 2021-06-17 | 2021-06-17 | External sealing device for rear sealing packing of waste rubber continuous thermal cracking kettle |
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| Country | Link |
|---|---|
| CN (1) | CN214946349U (en) |
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2021
- 2021-06-17 CN CN202121354043.1U patent/CN214946349U/en active Active
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