CN210070559U - Sealing structure of movable furnace door of rotary kiln - Google Patents
Sealing structure of movable furnace door of rotary kiln Download PDFInfo
- Publication number
- CN210070559U CN210070559U CN201920746543.6U CN201920746543U CN210070559U CN 210070559 U CN210070559 U CN 210070559U CN 201920746543 U CN201920746543 U CN 201920746543U CN 210070559 U CN210070559 U CN 210070559U
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- rotary kiln
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- nylon
- spring
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- Muffle Furnaces And Rotary Kilns (AREA)
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Abstract
The utility model relates to a seal structure, specific seal structure of mobile furnace gate of rotary kiln that says so belongs to rotary kiln structure technical field. The rotary kiln comprises a rotary kiln head, a rotary kiln cylinder, a sealing shell and a sealing plate assembly, wherein the rotary kiln head is detachably connected with the sealing shell through a connecting piece, and the rotary kiln cylinder is rotatably arranged in the sealing shell; a sealing cavity is arranged in the sealing shell, and an air inlet channel is arranged on the side surface of the sealing cavity; a sealing group plate is arranged in the sealing cavity, the inner ring of the sealing group plate is sleeved on the rotary kiln cylinder and can rotate along with the rotary kiln cylinder, and the front end surface and the rear end surface of the sealing group plate are in pressing contact with the inner surface of the sealing shell; the utility model has the advantages of simple and compact structure, rationally, adopt nylon board and metal plate mechanical seal to combine gas seal's combined seal structure, improved the sealed effect of rotary kiln business turn over material end and static device junction.
Description
Technical Field
The utility model relates to a seal structure, specific seal structure of mobile furnace gate of rotary kiln that says so belongs to rotary kiln structure technical field.
Background
The rotary kiln is a negative pressure operated thermal device, cold air is inevitably sucked at the joint of a feeding end and a discharging end of the rotary kiln and a static device, and therefore a sealing device is required to be arranged at the joint to reduce air leakage. If the sealing effect is not good, the combustion temperature is reduced at the hot end of the rotary kiln, the heat consumption is increased, the normal ventilation in the kiln is influenced at the cold end of the rotary kiln, and the load of the main exhaust fan is increased. Therefore, the sealing performance is good and bad, and the sealing device has important significance for the operation and production indexes of a kiln system, such as yield, quality, energy consumption and the like. The sealing effect of the existing contact type sealing structure is not satisfactory because the bending of the cylinder body, the end face caused by manufacturing installation errors and the radial direction and the axial direction must be provided with enough margin.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned weak point to a seal structure of the mobile furnace gate of rotary kiln is provided, adopts nylon plate and metal sheet mechanical seal to combine gas-tight's combined seal structure, has improved the sealed effect of rotary kiln business turn over material end and static device junction.
According to the technical scheme provided by the utility model, a seal structure of mobile furnace gate of rotary kiln includes rotary kiln head, rotary kiln barrel, seal housing and sealed group board, characterized by: the rotary kiln head is detachably connected with the sealing shell through a connecting piece, and the rotary kiln barrel is rotatably arranged in the sealing shell; a sealing cavity is arranged in the sealing shell, and an air inlet channel is arranged on the side surface of the sealing cavity; a sealing group plate is arranged in the sealing cavity, the inner ring of the sealing group plate is sleeved on the rotary kiln cylinder and can rotate along with the rotary kiln cylinder, and the front end surface and the rear end surface of the sealing group plate are in pressing contact with the inner surface of the sealing shell;
the sealing group plate comprises a metal plate, a first nylon plate and a second nylon plate, wherein the first nylon plate and the second nylon plate are embedded at the front end and the rear end of the metal plate, a plurality of spring installation cavities which are communicated from front to back are formed in the metal plate in the circumferential direction, a spring is arranged in each spring installation cavity, and the front end and the rear end of each spring are respectively connected with the first nylon plate and the second nylon plate, so that the metal plate, the first nylon plate and the second nylon plate are connected into a whole.
Furthermore, a first spring seat is fixedly connected to the first nylon plate, a second spring seat is fixedly connected to the second nylon plate, and two ends of the spring are respectively connected with the first spring seat and the second spring seat.
Furthermore, a first sealing ring is arranged between the metal plate and the first nylon plate, a second sealing ring is arranged between the metal plate and the second nylon plate, and an inner sealing ring is arranged between the metal plate and the rotary kiln cylinder.
Compared with the prior art, the utility model has the advantages that:
the utility model has the advantages of simple and compact structure, rationally, adopt nylon board and metal plate mechanical seal to combine gas seal's combined seal structure, improved the sealed effect of rotary kiln business turn over material end and static device junction.
Drawings
Fig. 1 is a front view of the present invention.
Description of reference numerals: the rotary kiln comprises a rotary kiln head 1, a rotary kiln barrel 2, a sealing shell 3, a metal plate 4, a first nylon plate 5, a second nylon plate 6, a spring 7, a first sealing ring 8, a second sealing ring 9, an inner sealing ring 10, a first spring seat 11 and a second spring seat 12.
Detailed Description
The invention will be further described with reference to the embodiments shown in the drawings to which:
as shown in fig. 1, the utility model mainly comprises a rotary kiln head 1, a rotary kiln barrel 2, a sealing shell 3 and a sealing plate.
The rotary kiln head 1 is detachably connected with a sealing shell 3 through a connecting piece, and the rotary kiln barrel 2 is rotatably arranged in the sealing shell 3.
The sealing device is characterized in that a sealing cavity is arranged in the sealing shell 3, a sealing plate assembly is arranged in the sealing cavity, the inner ring of the sealing plate assembly is sleeved on the rotary kiln barrel 2 and can rotate along with the rotary kiln barrel 2, the front end face and the rear end face of the sealing plate assembly are in compression contact with the inner surface of the sealing shell 3, and the sealing plate assembly realizes mechanical sealing between the sealing shell 3 and the rotary kiln barrel 2.
And an air inlet channel is arranged on the side surface of the sealing cavity, and when the rotary kiln is used, compressed air is filled into the sealing cavity through an external air source through the air inlet channel, so that the air sealing between the sealing shell 3 and the rotary kiln barrel 2 is realized.
The sealing plate assembly comprises a metal plate 4, a first nylon plate 5 and a second nylon plate 6, wherein the first nylon plate 5 and the second nylon plate 6 are embedded at the front end and the rear end of the metal plate 4, a plurality of front and rear through spring installation cavities are formed in the metal plate 4 in the circumferential direction, a spring 7 is arranged in each spring installation cavity, and the front end and the rear end of each spring 7 are respectively connected with the first nylon plate 5 and the second nylon plate 6, so that the metal plate 4, the first nylon plate 5 and the second nylon plate 6 are connected into a whole.
The first nylon plate 5 is fixedly connected with a first spring seat 11, the second nylon plate 6 is fixedly connected with a second spring seat 12, and two ends of the spring 7 are respectively connected with the first spring seat 11 and the second spring seat 12.
A first sealing ring 8 is arranged between the metal plate 4 and the first nylon plate 5, a second sealing ring 9 is arranged between the metal plate 4 and the second nylon plate 6, and an inner sealing ring 10 is arranged between the metal plate 4 and the rotary kiln barrel 2.
The utility model discloses a theory of operation is: when the rotary kiln head is used, the rotary kiln barrel body 2 rotates to drive the sealing group plate to rotate together, and the rotary kiln head 1 and the sealing shell 3 are fixed. The seal pack plate provides a soft mechanical seal between the rotating member and the stationary member. Meanwhile, the side face of the sealing cavity is provided with an air inlet channel, and when the rotary kiln is used, compressed air is filled into the sealing cavity through the air inlet channel by an external air source, so that air sealing between the sealing shell 3 and the rotary kiln barrel 2 is realized. The utility model discloses a nylon board combines gas seal's combined seal structure with sheet metal mechanical seal, has improved the sealed effect of rotary kiln business turn over material end and static device junction.
Claims (3)
1. The utility model provides a seal structure of movable furnace gate of rotary kiln, includes rotary kiln head (1), rotary kiln barrel (2), sealed casing (3) and sealed group board, characterized by: the rotary kiln head (1) is detachably connected with the sealed shell (3) through a connecting piece, and the rotary kiln barrel (2) is rotatably arranged in the sealed shell (3); a sealing cavity is arranged in the sealing shell (3), and an air inlet channel is arranged on the side surface of the sealing cavity; a sealing group plate is arranged in the sealing cavity, the inner ring of the sealing group plate is sleeved on the rotary kiln cylinder (2) and can rotate along with the rotary kiln cylinder (2), and the front end surface and the rear end surface of the sealing group plate are in pressing contact with the inner surface of the sealing shell (3);
the sealing plate assembly comprises a metal plate (4), a first nylon plate (5) and a second nylon plate (6) which are embedded at the front end and the rear end of the metal plate (4), a plurality of front and rear through spring installation cavities are formed in the metal plate (4) in the circumferential direction, a spring (7) is arranged in each spring installation cavity, the front end and the rear end of each spring (7) are respectively connected with the first nylon plate (5) and the second nylon plate (6), and therefore the metal plate (4), the first nylon plate (5) and the second nylon plate (6) are connected into a whole.
2. The sealing structure of the movable furnace door of the rotary kiln as claimed in claim 1, wherein: a first spring seat (11) is fixedly connected to the first nylon plate (5), a second spring seat (12) is fixedly connected to the second nylon plate (6), and two ends of the spring (7) are respectively connected with the first spring seat (11) and the second spring seat (12).
3. The sealing structure of the movable furnace door of the rotary kiln as claimed in claim 1, wherein: be equipped with first sealing washer (8) between metal sheet (4) and first nylon board (5), be equipped with second sealing washer (9) between metal sheet (4) and second nylon board (6), be equipped with between metal sheet (4) and rotary kiln barrel (2) interior sealing washer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920746543.6U CN210070559U (en) | 2019-05-22 | 2019-05-22 | Sealing structure of movable furnace door of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920746543.6U CN210070559U (en) | 2019-05-22 | 2019-05-22 | Sealing structure of movable furnace door of rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210070559U true CN210070559U (en) | 2020-02-14 |
Family
ID=69453767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920746543.6U Active CN210070559U (en) | 2019-05-22 | 2019-05-22 | Sealing structure of movable furnace door of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210070559U (en) |
-
2019
- 2019-05-22 CN CN201920746543.6U patent/CN210070559U/en active Active
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