CN114526599B - Discharging device of vacuum rotary kiln - Google Patents
Discharging device of vacuum rotary kiln Download PDFInfo
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- CN114526599B CN114526599B CN202210124402.7A CN202210124402A CN114526599B CN 114526599 B CN114526599 B CN 114526599B CN 202210124402 A CN202210124402 A CN 202210124402A CN 114526599 B CN114526599 B CN 114526599B
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- bearing seat
- discharging pipe
- mechanical seal
- discharging
- outer side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/33—Arrangement of devices for discharging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/22—Rotary drums; Supports therefor
- F27B7/24—Seals between rotary and stationary parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/38—Arrangements of cooling devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention relates to a discharging device of a vacuum rotary kiln, which comprises a high-temperature roller for reaction treatment and a receiving cylinder for discharging materials, wherein the receiving cylinder is fixedly connected with the high-temperature roller, an inner cavity of the receiving cylinder is communicated with the high-temperature roller, the discharging device comprises a discharging pipe, a spiral conveying shaft and a driving mechanism, the discharging pipe is externally connected to the outer side of the receiving cylinder, the spiral conveying shaft is arranged in the discharging pipe in a penetrating way, a discharging hole is formed in the discharging pipe, the driving mechanism is in transmission connection with the spiral conveying shaft and is used for driving the spiral conveying shaft to act, a wall plate of the discharging pipe is a double-layer plate with an inner cavity, a water inlet and a water outlet are formed in the wall plate, and a water circulation structure for cooling is formed in the inner cavity. The high-temperature roller has good cooling effect and better heat resistance, and simultaneously, the tightness of the high-temperature roller and the discharging section is effectively ensured.
Description
Technical Field
The invention relates to the technical field of conveying equipment, in particular to a discharging device for a vacuum rotary kiln.
Background
The rotary kiln is a rotary calcining kiln, the traditional rotary kiln belongs to building material equipment, and can be divided into a cement kiln, a metallurgical chemical kiln and a lime kiln according to different treatment materials, and the rotary kiln is widely applied to high-temperature incineration disposal along with the current prevalence of high-temperature treatment of solid waste materials, and the formed rotary kiln high-temperature incineration device has the advantages of high incineration temperature, high incineration efficiency, low reduction rate after disposal and the like and is widely used.
The rotary kiln (rotary kiln) comprises a cylindrical object with a certain inclination, and the cylinder is heated at high temperature outside, which can be called as a high-temperature roller, and the rotation of the high-temperature roller is used for promoting the stirring of the materials in the kiln, so that the materials are mutually mixed and then fully contacted with catalytic reduction gas for reaction, and the reaction treatment of the materials is realized. After the materials are processed by the high-temperature roller, the traditional spiral conveying mode can not ensure the high temperature resistance, cooling and sealing performance in the material conveying process.
Therefore, how to improve the structure of the rotary kiln and improve the high temperature resistance, the cooling and the sealing performance of the rotary kiln is a technical problem to be solved at present.
Disclosure of Invention
The invention aims to provide a discharging device of a vacuum rotary kiln, which has good cooling effect and better heat resistance, and simultaneously effectively ensures the tightness of a high-temperature roller and a discharging section.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention provides a vacuum rotary kiln discharging device, which comprises a high-temperature roller for carrying out reaction treatment and a receiving cylinder for delivering materials, wherein the receiving cylinder is fixedly connected with the high-temperature roller, an inner cavity of the receiving cylinder is communicated with the high-temperature roller, the discharging device comprises a discharging pipe, a spiral conveying shaft and a driving mechanism, the discharging pipe is externally connected to the outer side of the receiving cylinder, the spiral conveying shaft is arranged in the discharging pipe in a penetrating way, a discharging hole is formed in the discharging pipe, the driving mechanism is in transmission connection with the spiral conveying shaft and is used for driving the spiral conveying shaft to act, a wall plate of the discharging pipe is a double-layer plate with an inner cavity, a water inlet and a water outlet are formed in the wall plate, and a water circulation structure for cooling is formed in the inner cavity.
For the above solutions, the applicant has further optimisation.
Optionally, the discharging device further comprises a first bearing seat and a first mechanical seal which are coaxially arranged with the receiving cylinder, the first bearing seat and the first mechanical seal are sequentially arranged on the outer side of the receiving cylinder and surround the discharging pipe, a through hole is formed in the center of the outer side surface of the receiving cylinder, the first bearing seat is fixed on the outer side of the outer side surface of the receiving cylinder, the first mechanical seal is tightly attached to the first bearing seat and is fixedly connected with the outer side surface of the first bearing seat, and one end of the discharging pipe is butted to the through hole at the receiving cylinder.
Further, a first bearing is arranged in the first bearing seat, the first bearing surrounds the outer side of the discharging pipe, and the first bearing seat, the first mechanical seal and the connecting cylinder synchronously rotate along with the high-temperature roller.
Further, the discharging device comprises a second mechanical seal, the second mechanical seal is arranged at the other end of the discharging pipe, the spiral conveying shaft penetrates through the discharging pipe, the spiral conveying shaft penetrates out of the other end of the discharging pipe, and the second mechanical seal is arranged around the spiral conveying shaft.
Further, a second bearing seat is arranged at the other end of the discharging pipe, a second bearing is arranged in the second bearing seat, the second bearing seat is arranged around the spiral conveying shaft, and a second mechanical seal is closely attached to the first bearing seat and is fixedly connected with the outer side surface of the second bearing seat in a facing manner.
Optionally, the screw conveying shaft comprises a shaft rod and screw blades arranged on the shaft rod, the shaft rod is a hollow pipe, a rotary joint is connected with the outer end part of the shaft rod, the rotary joint is connected with an external catalytic gas source, and the rotary joint is used as a gas inlet.
Further, the helical blade on the shaft rod extends from the inside of the receiving cylinder to at least the discharge hole.
Optionally, a plurality of water retaining bars are arranged in the cavity in the wall plate of the discharging pipe, the water retaining bars form a labyrinth water flow channel in the cavity of the wall plate, external cooling water enters the water flow channel from the water inlet, and the cooling water is circulated through the water flow channel and then sent out from the water outlet.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the utility model provides a vacuum rotary kiln discharging device, its double-deck wallboard through the discharging pipe's design forms the heat-resisting hydrologic cycle structure of cooling in the discharging pipe is inside, can take away the heat energy that the high temperature material was conveyed out to realize more efficient cooling effect, make the whole heat resistance of equipment better.
Further, a first mechanical seal is arranged at the discharge pipe in the discharge device, so that the sealing of the inside of the high-temperature roller is realized, the gas leakage of the inside of the high-temperature roller can be prevented, the second mechanical seal arranged at the end part of the discharge pipe can realize the internal sealing of the discharge pipe, the gas leakage of the inside in the discharge process of materials can be prevented, and the tightness of the high-temperature roller and the discharge section is further effectively ensured.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic perspective view of a discharging device of a vacuum rotary kiln according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing a front view of a discharging device of a vacuum rotary kiln according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A of a partial structure of the discharge device of the vacuum rotary kiln shown in FIG. 2.
Wherein reference numerals are as follows:
1: high temperature cylinder, 2: rotating the cylinder, 3: first bearing frame, 4: first mechanical seal, 5: and (6) a water outlet: water inlet, 7: swivel joint, 8: second mechanical seal, 9: discharge gate, 10: driving mechanism, 11: screw conveying shaft, 12: explosion venting port, 13: first bearing, 14: second bearing, 15: discharge pipe, 16: and a second bearing seat.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The embodiment describes a vacuum rotary kiln discharging device, as shown in fig. 1 to 3, the vacuum rotary kiln comprises a high-temperature roller 1 for carrying out reaction treatment and a receiving cylinder for delivering materials, the receiving cylinder is fixedly connected with the high-temperature roller 1, the internal cavity of the receiving cylinder is communicated with the high-temperature roller 1, the discharging device comprises a discharging pipe 15, a spiral conveying shaft 11 and a driving mechanism 10, the discharging pipe 15 is externally connected to the outer side of the receiving cylinder, the spiral conveying shaft 11 is arranged in the discharging pipe 15 in a penetrating way, a discharging hole 9 is formed in the discharging pipe 15, the driving mechanism 10 is in transmission connection with the spiral conveying shaft 11 and is used for driving the spiral conveying shaft 11 to act, a wall plate of the discharging pipe 15 is a double-layer plate with an internal cavity, a water inlet 6 and a water outlet 5 are formed in the wall plate, and a water circulation structure for cooling is formed in the internal cavity.
In order to enable sealing of the inside of the high temperature drum 1 while facilitating rolling of the high temperature drum 1. The discharging device further comprises a first bearing seat 3 and a first mechanical seal 4 which are coaxially arranged with the connecting cylinder, the first bearing seat 3 and the first mechanical seal 4 are sequentially arranged on the outer side of the connecting cylinder and surround the discharging pipe 15, a through hole is formed in the center of the outer side surface of the connecting cylinder, the first bearing seat 3 is fixed on the outer side of the outer side surface of the connecting cylinder, the first mechanical seal 4 is tightly attached to the first bearing seat 3 and fixedly connected with the outer side surface of the first bearing seat 3, and one end of the discharging pipe 15 is abutted to the through hole at the position of the connecting cylinder.
Further, a first bearing 13 is arranged in the first bearing seat 3, the first bearing 13 is arranged around the outer side of the discharging pipe 15, and the first bearing seat 3, the first mechanical seal 4 and the connecting cylinder synchronously rotate along with the high-temperature roller 1.
In addition, the discharging device comprises a second mechanical seal 8, the second mechanical seal 8 is arranged at the other end of the discharging pipe 15, the spiral conveying shaft 11 is arranged in the discharging pipe 15 in a penetrating mode, the spiral conveying shaft 11 penetrates out of the other end of the discharging pipe 15, and the second mechanical seal 8 is arranged around the spiral conveying shaft 11.
The other end of the discharging pipe 15 is provided with a second bearing seat 16, a second bearing 14 is arranged in the second bearing seat 16, the second bearing 14 is arranged around the screw conveying shaft 11, and a second mechanical seal 8 is closely attached to the first bearing seat 3 and is fixedly connected with the outer side surface of the second bearing seat 16.
It can be understood that when the vacuum rotary kiln works, in the normal conveying process of the discharging device, the rotary receiving cylinder 2, the first bearing seat 3 and the first mechanical seal 4 move along with the rotation of the high-temperature roller 1, and the first mechanical seal 4 seals and protects the gas inside the high-temperature roller 1 from leakage; the gear motor serving as the driving mechanism 10 is fixed to the outer side of the wall plate of the discharging pipe 15 through a fixing support, the discharging pipe 15, the second bearing 16, the second mechanical seal 8 and the gear motor are in a static state, and the second mechanical seal 8 protects against leakage of internal gas in the material conveying process.
The discharging pipe 15 in the discharging device is provided with the first mechanical seal 4, so that the sealing of the inside of the high-temperature roller 1 is realized, the gas leakage of the inside of the high-temperature roller 1 can be prevented, the second mechanical seal 8 arranged at the end part of the discharging pipe 15 can realize the sealing of the inside of the discharging pipe 15, the gas leakage of the inside in the discharging process of materials can be prevented, and the sealing property of the high-temperature roller 1 and the discharging section is further effectively ensured.
A plurality of water blocking bars are arranged in the cavity in the wall plate of the discharging pipe 15, the water blocking bars form a labyrinth type water flow channel in the cavity of the wall plate, external cooling water enters the water flow channel from the water inlet 6, and the cooling water is sent out for circulation from the water outlet 5 after passing through the water flow channel. When the discharging device works, water is supplied from the water inlet 6 and water is discharged from the water outlet 5, so that the surface of the discharging pipe 15 is cooled, and the first mechanical seal 4 and the second mechanical seal 8 are prevented from being damaged. In addition, a plurality of explosion venting ports 12 are arranged on the outer side of the rotary joint cylinder 2, and the explosion venting ports 12 can be used for venting explosion protection equipment in emergency.
In an embodiment, the screw conveying shaft 11 includes a shaft rod and a screw blade disposed on the shaft rod, the shaft rod is a hollow tube, an outer end of the shaft rod is connected with a rotary joint 7, the rotary joint 7 is connected with an external catalytic gas source, and the rotary joint 7 is used as a gas inlet. The helical blade on the shaft rod extends from the inside of the receiving cylinder to at least the position of the discharge hole 9.
In summary, the vacuum rotary kiln discharging device of the application is designed through the double-layer wall plate of the discharging pipe 15, a cooling and heat-resistant water circulation structure is formed inside the discharging pipe 15, and heat energy transferred by high-temperature materials can be taken away, so that a more efficient cooling effect is achieved, and the overall heat resistance of equipment is better.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (6)
1. The vacuum rotary kiln comprises a high-temperature roller for reaction treatment and a receiving cylinder for delivering materials, wherein the receiving cylinder is fixedly connected with the high-temperature roller, and an inner cavity of the receiving cylinder is communicated with the high-temperature roller;
the discharging device further comprises a first bearing seat and a first mechanical seal, wherein the first bearing seat and the first mechanical seal are coaxially arranged with the connecting cylinder, are sequentially arranged on the outer side of the connecting cylinder and surround the discharging pipe, a through hole is formed in the center of the outer side surface of the connecting cylinder, the first bearing seat is fixed on the outer side of the outer side surface of the connecting cylinder, the first mechanical seal is tightly attached to the first bearing seat and is fixedly connected with the outer side surface of the first bearing seat, and one end of the discharging pipe is butted to the through hole at the position of the connecting cylinder;
the discharging device comprises a second mechanical seal, the second mechanical seal is arranged at the other end of the discharging pipe, the spiral conveying shaft penetrates through the discharging pipe, the spiral conveying shaft penetrates out of the other end of the discharging pipe, and the second mechanical seal is arranged around the spiral conveying shaft.
2. The vacuum rotary kiln discharge device of claim 1, wherein a first bearing is disposed in the first bearing seat, the first bearing is disposed around the outer side of the discharge pipe, and the first bearing seat, the first mechanical seal and the receiving cylinder synchronously rotate with the high-temperature roller.
3. The vacuum rotary kiln discharge device of claim 1, wherein a second bearing seat is provided at the other end of the discharge pipe, a second bearing is provided in the second bearing seat, the second bearing seat is provided around the screw conveying shaft, and a second mechanical seal is provided close to the first bearing seat and is fixedly connected with the outer side surface of the second bearing seat.
4. A vacuum rotary kiln discharge device according to any one of claims 1 to 3, wherein the screw conveyor shaft comprises a shaft rod and screw blades arranged on the shaft rod, the shaft rod is a hollow tube, the outer end of the shaft rod is connected with a rotary joint, and the rotary joint is connected with an external catalytic gas source.
5. A vacuum rotary kiln discharge apparatus according to claim 4, wherein the helical blades on the shaft extend from within the receiving cylinder at least to the discharge port.
6. The vacuum rotary kiln discharging device according to claim 1, wherein a plurality of water blocking strips are arranged in a cavity in a wall plate of the discharging pipe, the water blocking strips form a labyrinth type water flow channel in the cavity of the wall plate, external cooling water enters the water flow channel from the water inlet, and the cooling water is circulated through the water flow channel and then is sent out from the water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124402.7A CN114526599B (en) | 2022-02-10 | 2022-02-10 | Discharging device of vacuum rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124402.7A CN114526599B (en) | 2022-02-10 | 2022-02-10 | Discharging device of vacuum rotary kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114526599A CN114526599A (en) | 2022-05-24 |
| CN114526599B true CN114526599B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210124402.7A Active CN114526599B (en) | 2022-02-10 | 2022-02-10 | Discharging device of vacuum rotary kiln |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2601465Y2 (en) * | 1993-06-03 | 1999-11-22 | 東海カーボン株式会社 | Rotary heat treatment furnace |
| JP2003190770A (en) * | 2001-12-27 | 2003-07-08 | Fuji Electric Co Ltd | Organic compound decomposition treatment apparatus |
| WO2011052495A1 (en) * | 2009-10-29 | 2011-05-05 | 月島機械株式会社 | Rotary heat treatment apparatus |
| CN202864471U (en) * | 2012-01-27 | 2013-04-10 | 尹华雷 | Three-water inner-cooling high-temperature material conveyor |
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Address after: 213000 No. 58, Songtao Road, Zhonglou District, Changzhou City, Jiangsu Province Applicant after: Changzhou Donggong Automation Equipment Co.,Ltd. Address before: 213000 No. 58, Songtao Road, Zhonglou District, Changzhou City, Jiangsu Province Applicant before: Changzhou Donggong Electric Appliance Co.,Ltd. |
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