CN219083718U

CN219083718U - Annular heating furnace

Info

Publication number: CN219083718U
Application number: CN202122914708.6U
Authority: CN
Inventors: 张文杰; 姜鹏
Original assignee: Suzhou Zhengyicheng New Energy Technology Co ltd
Current assignee: Suzhou Zhengyicheng New Energy Technology Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2023-05-26
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses an annular heating furnace, which comprises: the bottom of the furnace body is provided with a mounting port; the furnace bottom transmission device comprises a driving assembly arranged on the periphery of the furnace body, a bearing frame in transmission connection with the driving assembly and a supporting roller for supporting the bearing frame, and the bearing frame extends into the furnace body from the mounting opening; the furnace bottom is arranged on the bearing frame and covers the mounting port; the driving assembly can drive the bearing frame to rotate, and the number of the supporting rollers is multiple and the supporting rollers are distributed along the rotation direction of the bearing frame. The annular heating furnace is convenient to install, and smooth and reliable in rotation.

Description

Annular heating furnace

Technical Field

The utility model relates to a heating furnace, in particular to an annular heating furnace.

Background

The annular furnace is a heating furnace in which blanks are heated while moving on an annular rotary furnace bottom. The annular furnace comprises a furnace hearth and a furnace bottom transmission device, and the furnace bottom transmission device is arranged in the furnace hearth and is connected with the furnace bottom to drive the furnace bottom to rotate. The existing furnace bottom transmission device is inconvenient to install, poor in rotation smoothness, needs to adopt larger acting force to realize rotation, and is easy to wear after long-term use, so that the rotation reliability of the furnace bottom transmission device is reduced.

Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

The utility model aims to provide an annular heating furnace which is convenient to install and smooth and reliable to rotate.

The utility model aims at realizing the following technical scheme: an annular heating furnace comprising: the bottom of the furnace body is provided with a mounting port; the furnace bottom transmission device comprises a driving assembly arranged on the periphery of the furnace body, a bearing frame in transmission connection with the driving assembly and a supporting roller for supporting the bearing frame, and the bearing frame extends into the furnace body from the mounting opening; the furnace bottom is arranged on the bearing frame and covers the mounting port; the driving assembly can drive the bearing frame to rotate, and the number of the supporting rollers is multiple and the supporting rollers are distributed along the rotation direction of the bearing frame.

Further, the bearing frame is of an annular structure, and the supporting rollers comprise outer supporting rollers arranged at the outer ring of the bearing frame and inner supporting rollers arranged at the inner ring of the bearing frame.

Further, the driving assembly comprises a base, a gear motor arranged on the base, a gear connected with the output end of the gear motor and a rack meshed with the gear, and the rack is arranged on the outer ring of the bearing frame in a surrounding mode.

Further, the gear motor is in sliding connection with the base, the driving assembly further comprises a first translation driving piece which is installed on the base and in transmission connection with the gear motor, and the first translation driving piece can drive the gear motor to move and enable the gear to be close to or far away from the rack.

Further, the drive assembly includes a travel detector that detects a translational travel of the first translational drive member.

Further, an arc angle plate is arranged on the bearing frame, and the furnace body is radially limited and embedded in the arc angle plate.

Further, the furnace bottom is provided with an inner water seal assembly and an outer water seal assembly which are used for sealing the mounting opening, a circle of inner ring water seal grooves and outer ring water seal grooves are formed in the inner wall of the furnace body along the rotation direction of the bearing frame, the inner water seal assembly is arranged on the inner ring of the furnace bottom and can slide in the inner ring water seal grooves, and the outer water seal assembly is arranged on the outer ring of the furnace body and can slide in the outer ring water seal grooves.

Further, the heating furnace further comprises a centering assembly arranged on the inner ring of the bearing frame, the centering assembly comprises a second translational driving piece and a centering roller in transmission connection with the second translational driving piece, and the second translational driving piece can drive the centering roller to be close to or far away from the inner ring of the bearing frame.

Further, the centering assembly is disposed opposite the drive assembly.

Further, a centering guide rail plate is arranged at the position of the bearing frame corresponding to the centering roller.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the mounting opening is formed in the bottom of the furnace body, the bearing frame is arranged in the furnace body from the mounting opening, the furnace bottom is arranged on the bearing frame, the mounting opening is sealed, an operator can assemble and disassemble the bearing frame and the furnace bottom without entering the furnace body, the assembly and disassembly are convenient, the driving assembly is arranged on the periphery of the furnace body and does not play a role in supporting the bearing frame, the driving assembly is small in stress and not easy to damage, and meanwhile, the installation convenience of the driving assembly can be improved; in addition, the furnace bottom transmission device is provided with supporting rollers for supporting the bearing frame, and the supporting rollers are distributed along the rotation direction of the bearing frame, so that the bearing frame rotates more smoothly, and the reliability and the service life of the furnace bottom transmission device are improved.

Drawings

FIG. 1 is a schematic top view of the annular heating furnace of the present utility model.

Fig. 2 is a schematic cross-sectional view of fig. 1 in the direction A-A.

Fig. 3 is a partial enlarged view of fig. 2 at B.

Fig. 4 is a partial enlarged view of fig. 2 at C.

Fig. 5 is a schematic view of the structure of the driving assembly in the present utility model.

FIG. 6 is a schematic view of the installation of support rolls, load-bearing frames and hearth floor of the present utility model.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "comprising" and "having" and any variations thereof herein are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1 to 3, a ring-shaped heating furnace according to a preferred embodiment of the present utility model includes: a furnace body 100, the bottom of which is provided with a mounting port 11; the furnace bottom transmission device 200 comprises a driving component 21 arranged on the periphery of the furnace body 100, a bearing frame 22 in transmission connection with the driving component 21 and a supporting roller 23 for supporting the bearing frame 22, wherein the bearing frame 22 extends into the furnace body 100 from the mounting port 11; and a furnace bottom 300 provided on the carrying frame 22 and closing the mounting port 11; the driving assembly 21 may drive the carrying frame 22 to rotate, and the number of the supporting rollers 23 is plural and arranged along the rotation direction of the carrying frame 22.

According to the utility model, the mounting opening 11 is formed in the bottom of the furnace body 100, the bearing frame 22 is arranged in the furnace body 100 from the mounting opening 11, the furnace bottom 300 is arranged on the bearing frame 22, and the mounting opening 11 is sealed, so that an operator can assemble and disassemble the bearing frame 22 and the furnace bottom 300 without entering the furnace body 100, the assembly and disassembly are convenient, the driving assembly 21 is arranged on the periphery side of the furnace body 100, the driving assembly 21 does not play a role of supporting the bearing frame 22, the driving assembly 21 is small in stress and not easy to damage, and meanwhile, the installation convenience of the driving assembly 21 can be improved; in addition, the hearth transmission device 200 is provided with support rollers 23 for supporting the bearing frame 22, and the support rollers 23 are arranged along the rotation direction of the bearing frame 22, so that the bearing frame 22 rotates more smoothly, and the reliability and the service life of the hearth transmission device 200 are improved.

Further, the furnace body 100 and the bearing frame 22 are both in annular structures, and the bearing frame 22 can rotate along the circumferential direction of the furnace body 100.

Further, referring to fig. 5, the driving assembly 21 includes a base 211, a reduction motor 212, a gear 213, and a rack 214. The base 211 is fixed on the ground, the gear motor 212 is arranged on the base 211, the gear 213 is connected with the output end of the gear motor 212, the rack 214 is annularly arranged on the outer ring of the bearing frame 22 and meshed with the gear 213, and the gear motor 212 can drive the gear 213 to rotate and drive the rack 214 meshed with the gear 213 to rotate so as to drive the bearing frame 22 to rotate.

Preferably, the gear motor 212 is slidably connected to the base 211, and the driving assembly 21 further includes a first translational driving member 215 mounted on the base 211, where the first translational driving member 215 is drivingly connected to the gear motor 212 and is capable of driving the gear motor 212 to move so as to move the gear 213 closer to or farther from the rack 214. By adopting the structure, on one hand, the meshing assembly and subsequent maintenance of the gear 213 and the rack 214 can be facilitated, and on the other hand, the gear 213 and the rack 214 can be ensured to be tightly meshed all the time in the subsequent use process, so that the rotation reliability of the bearing frame 22 is ensured. In this embodiment, a sliding plate (not shown) fixed to the gear motor 212 is provided on the base 211, and a sliding groove (not shown) adapted to the sliding plate is provided on the base 211, so as to realize sliding of the gear motor 212. The first translation driving member 215 is specifically one of a telescopic cylinder, an electric cylinder or an oil cylinder. Preferably, the drive assembly 21 further includes a travel detector (not shown) for detecting the translational travel of the first translation drive member 215, thereby detecting the translational position of the gear motor 212, facilitating determination of the optimal engagement position of the gear 213 with the rack 214.

In this embodiment, the gear 213 is embodied as a pin gear, the rack 214 is embodied as a pin rack, and the rack 214 includes a pin rack 2141 and a plurality of pins 2142 mounted on the pin rack 2141. Preferably, a distance wheel 216 is rotatably mounted above the gear 213, and when the gear 213 is in optimal engagement with the rack 214, the distance wheel 216 abuts against the pin rack 2141 to limit movement of the gear motor 212.

Further, referring to fig. 2 and 3, the support roller 23 includes an outer support roller 23a disposed at an outer ring of the bearing frame 22 and an inner support roller 23b disposed at an inner ring of the bearing frame 22, the outer support roller 23a and the inner support roller 23b are identical in structure, and the outer support roller 23a and the inner support roller 23b cooperate to support the bearing frame 22. The supporting roller 23 includes a supporting seat 231 fixed on the ground, a mounting shaft 232 fixed on the supporting seat 231, and a roller 233 rotatably connected to the mounting shaft 232, the roller 233 protrudes relative to the top of the supporting seat 231, and the bearing frame 22 is disposed on the roller 233. The bottom side of the carrying frame 22 is detachably provided with a pad 223 in contact with the roller 233 to avoid wearing the carrying frame 22. Preferably, the pad 223 may be provided with a guide groove (not shown) adapted to the roller 233 to guide the rotation of the bearing frame 22.

Further, referring to fig. 2, 4 and 6, the carrying frame 22 includes an upper frame 221 and a lower frame 222 detachably provided at the bottom of the upper frame 221. The upper frame 221 is disposed in a horizontal direction, and the furnace floor 300 is disposed on the upper frame 221. The lower frame 222 is received on the inner support roller 23b and the outer support roller 23a on the inner ring side and the outer ring side, respectively. Arc corner plates 225 are arranged on the inner ring side and the outer ring side of the upper frame 221, and the furnace body 100 is embedded in the arc corner plates 225 in a radial limiting manner.

Further, the furnace floor 300 is formed by stacking a plurality of material layers. The furnace bottom 300 is provided with an anti-slag casting layer 31, a common low cement casting layer 32, clay bricks 33, an aluminum silicate fiber machine board 34 and an aluminum silicate fiber blanket 35 in sequence from top to bottom. By adopting the composite structure, the strength and the heat insulation performance of the furnace bottom 300 can be ensured, and slag is not easy to generate on the bearing end surface of the furnace bottom 300. The inner and outer annular sides of the furnace bottom 300 are provided with flange bricks 36, the outer contour of the flange bricks 36 is matched with the inner contour of the arc corner plates 225, and the flange bricks 36 are closely attached to the arc corner plates 225.

Further, the furnace bottom 300 is provided with an inner water seal assembly 37 and an outer water seal assembly 38 closing the mounting opening 11. The inner wall of the furnace body 100 is provided with a circle of inner ring water seal grooves 12 and outer ring water seal grooves 13 along the rotation direction of the bearing frame 22, the inner water seal assembly 37 is arranged on the inner ring of the furnace bottom 300 and can slide in the inner ring water seal grooves 12, and the outer water seal assembly 38 is arranged on the outer ring of the furnace body 100 and can slide in the outer ring water seal grooves 13. By providing the inner water seal assembly 37 and the outer water seal assembly 38, it is possible to close the gap between the furnace bottom 300 and the inner wall of the furnace body 100, avoiding the outflow of gas in the furnace body 100 from the installation opening 11 and the inflow of external gas into the furnace body 100 from the installation opening 11. Preferably, the inner and outer ring sides of the lower frame 222 are inclined downward to form an installation space 224 between the upper and

lower frames

221 and 222, and the inner and outer

water seal assemblies

37 and 38 and part of the inner and outer ring

water seal grooves

12 and 13 are located in the installation space 224 to make the space between the loading frame 22 and the furnace body 100 more compact, thereby reducing the occupied space, and simultaneously reducing the gap between the furnace bottom 300 and the furnace body 100 and improving the heating effect.

The outer water seal assembly 38 comprises an outer water seal knife 381 and an outer ring slag scraping plate 382, wherein the outer water seal knife 381 is arranged on the outer ring of the furnace bottom 300 and extends into the outer ring water seal groove 13, and the outer ring slag scraping plate 382 is arranged at one end of the outer water seal knife 381, which is close to the outer ring water seal groove 13, so as to scrape slag in the outer ring water seal groove 13 when the bearing frame 22 rotates. The inner water seal assembly 37 and the outer water seal assembly 38 have the same structure, and the present utility model is not described herein.

Further, referring to fig. 2 and 3, the heating furnace further includes a centering assembly 400 provided on the inner ring of the carrier frame 22, and the centering assembly 400 includes a second translational driving member 41 and a centering roller 42 drivingly connected to the second translational driving member 41, wherein the second translational driving member 41 can drive the centering roller 42 toward or away from the inner ring of the carrier frame 22. The centering assembly 400 is disposed opposite the drive assembly 21 to better limit the position of the load frame 22. The second translational drive 41 may specifically be one of a pneumatic cylinder, an oil cylinder, or an electric cylinder. Preferably, the centering guide rail plate 226 is disposed at a position of the bearing frame 22 corresponding to the centering roller 42, and the centering roller 42 may contact with the centering guide rail plate 226 and center the bearing frame 22 under the guide of a guide rail (not shown) of the centering guide rail plate 226, so as to improve the centering accuracy of the bearing frame 22, avoid the bearing frame 22 from being deviated, and ensure the stable running of the furnace bottom 300.

Further, referring to fig. 1, the furnace body 100 includes a charging door opening 101, a discharging door opening 102, and a slag removing door opening 103, the number of the slag removing door openings 102 is two, and the slag removing door openings 102 are respectively provided at an outer ring side and an inner ring side of the furnace body 100 to clean slag in the inner ring water seal tank 12 and the outer ring water seal tank 13, respectively.

The foregoing is merely one specific embodiment of the utility model, and any modifications made in light of the above teachings are intended to fall within the scope of the utility model.

Claims

1. An annular heating furnace, comprising:

a furnace body (100) with a mounting opening (11) at the bottom;

the furnace bottom transmission device (200) comprises a driving assembly (21) arranged on the periphery of the furnace body (100), a bearing frame (22) in transmission connection with the driving assembly (21) and a supporting roller (23) for supporting the bearing frame (22), wherein the bearing frame (22) stretches into the furnace body (100) from the mounting opening (11); and

a furnace bottom (300) which is arranged on the bearing frame (22) and covers the mounting opening (11);

the driving assembly (21) can drive the bearing frame (22) to rotate, and a plurality of supporting rollers (23) are arranged along the rotation direction of the bearing frame (22).

2. The annular heating furnace according to claim 1, characterized in that the carrying frame (22) is of annular structure, the support rollers (23) comprising an outer support roller (23 a) provided at the outer ring of the carrying frame (22) and an inner support roller (23 b) provided at the inner ring of the carrying frame (22).

3. The annular heating furnace according to claim 2, characterized in that the driving assembly (21) comprises a base (211), a gear motor (212) mounted on the base (211), a gear (213) connected to an output end of the gear motor (212), and a rack (214) meshed with the gear (213), wherein the rack (214) is annularly arranged on an outer ring of the carrying frame (22).

4. A ring furnace according to claim 3, wherein the gear motor (212) is slidably connected to the base (211), and the driving assembly (21) further comprises a first translational driving member (215) mounted on the base (211) and drivingly connected to the gear motor (212), and the first translational driving member (215) is configured to drive the gear motor (212) to move and to move the gear (213) closer to or farther from the rack (214).

5. The ring furnace of claim 4, wherein the drive assembly (21) comprises a travel detector that detects a translational travel of the first translational drive member (215).

6. The annular heating furnace according to claim 1, characterized in that the bearing frame (22) is provided with an arc angle plate (225), and the furnace body (100) is radially limited and embedded in the arc angle plate (225).

7. The annular heating furnace according to claim 1, wherein the furnace bottom (300) is provided with an inner water seal assembly (37) and an outer water seal assembly (38) for sealing the mounting opening (11), a circle of inner water seal grooves (12) and outer water seal grooves (13) are arranged on the inner wall of the furnace body (100) along the rotation direction of the bearing frame (22), the inner water seal assembly (37) is arranged on the inner ring of the furnace bottom (300) and can slide in the inner water seal grooves (12), and the outer water seal assembly (38) is arranged on the outer ring of the furnace body (100) and can slide in the outer water seal grooves (13).

8. The ring furnace of claim 4, further comprising a centering assembly (400) provided to the inner ring of the carrier frame (22), the centering assembly (400) comprising a second translational drive (41) and a centering roller (42) drivingly connected to the second translational drive (41), the second translational drive (41) being operable to drive the centering roller (42) toward or away from the inner ring of the carrier frame (22).

9. The annular heating furnace according to claim 8, wherein the centering assembly (400) is arranged opposite the drive assembly (21).

10. The ring furnace according to claim 8, characterized in that the bearing frame (22) is provided with centering guide rail plates (226) at positions corresponding to the centering rollers (42).