A full-fiber nano heat insulation construction auxiliary device for a heating furnace roof

Abstract

This invention relates to the field of furnace top construction technology, and more particularly to an auxiliary device for the construction of a full-fiber nano-insulation system for furnace tops. The device includes a long track approximately the same length as the channel steel of the furnace top, and four positioning mechanisms located at the four corners of the long track surface. The invention uses an electric cylinder to lower a lifting seat, causing the rollers at the bottom of the fixed frame to contact the material surface. The lifting seat then continues to descend slightly, allowing the movable column to move vertically along the sliding holes. A compression spring continuously applies downward pressure, and a second motor drives a rotating rod to rotate via a transmission shaft, causing the eccentric wheel to vibrate at high frequencies. This structure solves the problem in the prior art where manual smoothing and compaction makes it difficult to ensure uniform filling, especially at the junction of brick piles and channel steel, and in irregularly shaped areas where gaps easily appear. It ensures that the nano-insulation material fully fills all complex corners, guaranteeing the overall bonding effect between the insulation layer and the furnace top structure.

Description

Technical Field

[0001] This invention relates to the field of furnace top construction technology, specifically to an auxiliary device for the construction of a full-fiber nano-insulation system for furnace tops. Background Technology

[0002] In the roughing rolling process, the main function of the heating furnace is to uniformly heat the steel billet to a suitable rolling temperature, thereby improving the metal's plasticity, reducing deformation resistance, ensuring that the roughing mill can stably and efficiently complete large-reduction rolling, and providing intermediate billets with uniform microstructure and temperature for subsequent finishing rolling. As a key heat dissipation component of the heating furnace, the furnace roof's lining structure directly affects the furnace's insulation, thermal efficiency, and energy consumption. Traditional composite linings for furnace roofs often use a structure of "230 mm low-cement castable + 70 mm ceramic fiber blanket + 50 mm lightweight castable + 30 mm fiberboard." While this provides some insulation, under long-term high-temperature conditions, the fiber material is prone to shrinkage and increased bulk density, leading to a gradual decrease in insulation performance; later, the fiber filaments crystallize and pulverize, further reducing the insulation performance. Meanwhile, the porous structure of fiber materials limits their effectiveness in blocking convective heat transfer. Furthermore, the bonding between fiber blankets / boards and hanging bricks / irregularly shaped parts is not tight, leading to shrinkage cracks after long-term operation, resulting in decreased airtightness, increased heat loss, and higher energy consumption. To address these shortcomings, the new furnace roof structure uses 230 mm castable refractory combined with a new type of dense, lightweight castable refractory, or further incorporates nano-insulation technology. This new material has a much lower thermal conductivity than traditional fiber materials, allowing for a tight fit with hanging bricks / irregularly shaped parts and excellent overall airtightness. Its internal microporous structure effectively blocks convective heat transfer, and construction can be completed directly without adding water. Practical applications show that with the new structure, the surface temperature of the furnace roof refractory can be reduced by 20–30 °C compared to the traditional structure, and the temperature in the highest zone of the furnace roof drops by more than 30 °C, significantly reducing heat loss from the furnace body and demonstrating outstanding effects in improving heating efficiency and saving energy consumption.

[0003] During the construction of the new nano-insulation material on the furnace roof, some viscous materials need to be manually applied between the suspended brick stacks. However, the brick stacks have channel steel, resulting in complex structural gaps and limited operating space, which poses a certain challenge to the construction. This type of material has high viscosity, and after manual application, it requires manual smoothing and compaction, making it difficult to ensure uniformity and density of the filling. This is especially true at the junctions of the brick stacks and channel steel, and in irregularly shaped areas, where incomplete filling, localized gaps, or insufficient compaction can easily occur, affecting the overall bonding effect between the insulation layer and the furnace roof structure. If the construction quality is unsatisfactory, it may not only weaken the excellent thermal conductivity and airtightness advantages of the nano-insulation material but also pose a risk of increased localized heat loss, adversely affecting the furnace roof cooling effect and long-term energy-saving operation. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary device for the construction of all-fiber nano-insulation for the top of a heating furnace, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a construction auxiliary device for all-fiber nano-insulation of the furnace top, comprising a long track approximately the same length as the furnace top channel steel, and further comprising: The positioning mechanism consists of four sets, located at the four corners of the long track surface, which clamp the long track to the channel steel. A mobile vibratory compaction mechanism includes a movable seat that slides along the surface of a long track, a moving component, a lifting component, and a vibratory compaction component. The vibratory compaction component generates vibration to compact nanomaterials. The lifting component is used to control the height of the vibratory compaction component, while the moving component drives the movable seat to move along the surface of the long track.

[0006] Preferably, the vibratory compaction assembly includes: A fixed frame is located below the movable seat, with movable columns bolted to its four top corners, and compression springs sleeved on the surface of the movable columns. The cover is bolted to the side of the fixing frame; The vibratory roller unit consists of several units, each with an external roller-shaped design. It is rotatably connected to the fixed frame and serves as the vibration source for the entire device. The second motor, which is bolted inside the housing, is used to provide power to the vibrating roller unit; The drive shaft transmits the power of the second motor to the vibrating roller unit, and the drive shaft is rotatably connected to the inside of the cover.

[0007] Preferably, the vibratory roller unit includes a roller body, a rotating rod, and eccentric wheels. The roller body is rotatably connected to the fixed frame via bearings, and the rotating rod is rotatably connected to the inner wall of the roller body via bearings. The number of eccentric wheels is several and they are bolted to the surface of the rotating rod. The rotating rod is connected to the transmission shaft via bevel gear transmission, and the transmission shaft is fixed to the output shaft of the second motor.

[0008] Preferably, the eccentric wheel has a semi-circular design.

[0009] Preferably, the lifting assembly includes an electric cylinder, a lifting seat, and a sliding hole. There are two sets of electric cylinders, which are respectively bolted to both sides of the movable seat. The output shaft of the electric cylinder is bolted to the lifting seat. The sliding hole is opened on the surface of the lifting seat. The movable column is slidably connected to the inner wall of the sliding hole. The two ends of the compression spring are in contact with the surfaces of the fixed frame and the lifting seat, respectively, and are located close to the sliding hole.

[0010] Preferably, when the device is not in operation, the top of the movable column is in contact with the top surface of the lifting seat.

[0011] Preferably, the moving component includes a toothed track, a transmission rod, a transmission gear, and a first motor bolted to the inner side of the long track. The transmission rod is fixed to the top of the moving seat via a bearing seat, enabling it to rotate. The first motor is bolted to the side of the moving seat and located next to the electric cylinder. The output shaft of the first motor is fixed to the transmission rod. The transmission gear is bolted to the surface of the transmission rod and meshes with the surface of the toothed track.

[0012] Preferably, the top of the movable seat has a partially open design for the transmission gear to pass through.

[0013] Preferably, the positioning mechanism consists of a frame, a clamping member, a screw, a handwheel, and a threaded sleeve. There are four sets of frames, which are respectively bolted to both sides of the surface of the long track. The threads on the surface of the screw are symmetrically designed and penetrate through the frame and the long track. The screw is rotatably connected to the frame and the long track at the penetration point. The clamping member is slidably connected to the surface of the frame and is connected to the surface of the screw through an internally fixed threaded sleeve. The handwheel is located at the end of the screw as a force-bearing point.

[0014] Preferably, the threads on both sides of the screw surface are symmetrically designed, the clamping member is composed of a metal frame and an L-plate welded together, and the threaded sleeve is located inside the metal frame of the clamping member and is threadedly connected to the surface of the screw.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, the electric cylinder drives the lifting seat to descend, so that the roller at the bottom of the fixed frame contacts the material surface. The lifting seat continues to descend slightly, and the movable column obtains vertical movement space along the sliding hole. The compression spring continuously applies downward pressure, and the second motor drives the rotating rod to rotate via the transmission shaft. The eccentric wheel generates high-frequency vibration. This structure solves the problem in the background technology that it is difficult to ensure the uniformity of filling by manually smoothing and compacting, especially at the junction of brick stacks and channel steel and irregular parts where gaps are prone to occur. It allows the nano heat insulation material to be fully filled into every complex corner, ensuring the overall bonding effect between the heat insulation layer and the furnace top structure.

[0016] 2. When the handwheel of this invention is turned, the threaded sleeves on both sides drive the clamping parts to move closer to each other synchronously. The L-shaped part of the clamping parts firmly clamps the channel steel. By replacing manual positioning with mechanical clamping, the installation efficiency and stability are significantly improved, providing a precise and reliable working benchmark for subsequent vibration operations and avoiding quality defects caused by device displacement during construction.

[0017] 3. The present invention drives the moving seat to move automatically along the surface of the long track, driving the vibration and compaction components below to achieve continuous operation of moving, vibrating and compacting at the same time, eliminating the hidden danger of uneven density at the joints. The vibration depth is precisely controlled by the lifting components, and the uniform speed of the moving components ensures that the insulation layer thickness is uniform and the density is consistent throughout the entire working area. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure in this invention; Figure 2 This is a schematic diagram of the invention in operation; Figure 3 This is a schematic diagram of the structure of the long track and its surface in this invention; Figure 4 This is a schematic diagram of the positioning mechanism in this invention; Figure 5 This is a schematic diagram of the clamping component in this invention; Figure 6 This is a schematic diagram of the mobile vibrating mechanism in this invention; Figure 7 This is a schematic diagram of the structure of the vibratory compaction component in this invention; Figure 8 This is a cross-sectional view of the roller body in this invention; Figure 9 This is a schematic diagram of the lifting seat in this invention.

[0019] In the diagram: 100, long track; 200, positioning mechanism; 210, frame; 220, clamping component; 230, screw; 240, handwheel; 250, threaded sleeve; 300, mobile vibratory mechanism; 310, moving seat; 320, moving component; 321, toothed track; 322, transmission rod; 323, transmission gear; 324, first motor; 330, lifting component; 331, electric cylinder; 332, lifting seat; 333, sliding hole; 340, vibratory compaction component; 341, fixed frame; 342, movable column; 343, compression spring; 344, cover; 345, second motor; 346, transmission shaft; 347, vibratory roller unit; 347a, roller body; 347b, rotating rod; 347c, eccentric wheel. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-9 An auxiliary device for the construction of all-fiber nano-insulation for the top of a heating furnace includes a long track 100 with a length approximately the same as that of the channel steel of the furnace top. The device also includes a positioning mechanism 200 and a movable vibration mechanism 300. There are four sets of positioning mechanisms 200, which are located at the four corners of the surface of the long track 100 and are fixed to the channel steel by clamping. The movable vibration mechanism 300 includes a movable seat 310 that slides along the surface of the long track 100, a moving component 320, a lifting component 330, and a vibration compaction component 340. The vibration compaction component 340 generates vibration to compact the nanomaterial. The lifting component 330 is used to control the height of the vibration compaction component 340, while the moving component 320 drives the movable seat 310 to move along the surface of the long track 100.

[0022] Specifically, the positioning mechanism 200 consists of a frame 210, a clamping member 220, a screw 230, a handwheel 240, and a threaded sleeve 250. There are four sets of frames 210, which are respectively bolted to both sides of the surface of the long track 100. The threads on the surface of the screw 230 are symmetrically designed and penetrate the frame 210 and the long track 100. The screw 230 is rotatably connected to the frame 210 and the long track 100 at the penetration point. The clamping member 220 is slidably connected to the surface of the frame 210. The clamping member 220 is connected to the surface of the screw 230 through the internally fixed threaded sleeve 250. The handwheel 240 is a force-bearing point at the end of the screw 230. The threads on both sides of the surface of the screw 230 are symmetrically designed. The clamping member 220 is composed of a metal frame and an L-plate welded together. The threaded sleeve 250 is located inside the metal frame of the clamping member 220 and is threadedly connected to the surface of the screw 230.

[0023] During operation, the nanomaterial is first applied to the working area. Then, the operator lifts the entire device and places it on the channel steel on both sides of the application area. At this time, the frame 210 and the top surface of the channel steel are in contact with each other, and the screw 230 is rotated by the handwheel 240. The threaded sleeves 250 on both sides of the surface of the screw 230 drive the clamping parts 220 on both sides to move closer to each other. The L-shaped part of the clamping part 220 clamps the channel steel and fixes the device.

[0024] Furthermore, the vibratory compaction assembly 340 includes a fixed frame 341, a cover 344, vibratory roller units 347, a second motor 345, and a drive shaft 346. The fixed frame 341 is located below the movable seat 310, and movable columns 342 are bolted to the four corners of its top, as well as compression springs 343 sleeved on the surface of the movable columns 342. The cover 344 is bolted to the side of the fixed frame 341. There are several vibratory roller units 347, and the outside is designed in the shape of rollers. They are rotatably connected to the fixed frame 341 and serve as the vibration source of the entire device. The second motor 345 is bolted to the inside of the cover 344 and is used to provide power to the vibratory roller units 347. The drive shaft 346 transmits the power of the second motor 345 to the vibratory roller units 347 and is rotatably connected to the inside of the cover 344.

[0025] Furthermore, the vibratory roller unit 347 includes a roller body 347a, a rotating rod 347b, and an eccentric wheel 347c. The roller body 347a is rotatably connected to the fixed frame 341 via bearings, and the rotating rod 347b is rotatably connected to the inner wall of the roller body 347a via bearings. There are several eccentric wheels 347c and they are bolted to the surface of the rotating rod 347b. The rotating rod 347b is connected to the transmission shaft 346 via bevel gear transmission. The transmission shaft 346 is fixed to the output shaft of the second motor 345. The eccentric wheel 347c has a semi-circular design, so that the eccentric wheel 347c can drive the rotating rod 347b and the roller body 347a to sway up and down during rotation.

[0026] The lifting assembly 330 includes an electric cylinder 331, a lifting seat 332, and a sliding hole 333. There are two sets of electric cylinders 331, which are respectively bolted to both sides of the movable seat 310. The output shaft of the electric cylinder 331 is bolted to the lifting seat 332. The sliding hole 333 is opened on the surface of the lifting seat 332. The movable column 342 is slidably connected to the inner wall of the sliding hole 333. The two ends of the compression spring 343 are in contact with the surfaces of the fixed frame 341 and the lifting seat 332, respectively, and are located close to the sliding hole 333. When the device is not working, the downward force of the compression spring 343 is applied to the surface of the fixed frame 341, so that the top of the movable column 342 is in contact with the top surface of the lifting seat 332.

[0027] After the device is fixed, the electric cylinder 331 is activated, and its output shaft extends to drive the lifting seat 332 and the fixed frame 341 below to descend. Then, the roller 347a at the bottom of the fixed frame 341 comes into contact with the surface of the material. The lifting seat 332 continues to descend a small distance, so that the lifting seat 332 disengages from the top of the movable column 342, giving the movable column 342 space to move up and down. The compression spring 343 gives the fixed frame 341 and the roller 347a a downward force, so that the roller 347a presses against the surface of the material. At the same time, the second motor 345 is activated. The output shaft of the second motor 345 drives the transmission shaft 346 to rotate. The transmission shaft 346 drives the rotating rod 347b to rotate through the bevel gear. The rotating rod 347b drives the eccentric wheel 347c on the surface to rotate. During the rotation of the eccentric wheel 347c, vibration is generated, which serves as a vibration source to vibrate and compact the material.

[0028] The moving assembly 320 includes a toothed track 321 bolted to the inside of the long track 100, a transmission rod 322, a transmission gear 323, and a first motor 324. The transmission rod 322 is fixed to the top of the moving seat 310 by a bearing seat, enabling it to rotate. The first motor 324 is bolted to the side of the moving seat 310 and located next to the electric cylinder 331. The output shaft of the first motor 324 is fixed to the transmission rod 322. The transmission gear 323 is bolted to the surface of the transmission rod 322 and meshes with the surface of the toothed track 321. The top of the moving seat 310 has a partially open design for the transmission gear 323 to pass through.

[0029] When the first motor 324 is turned on, its output shaft drives the transmission rod 322 and the transmission gear 323 to rotate. The transmission gear 323 drives the moving seat 310 to move along the surface of the toothed track 321, which in turn drives the fixed frame 341 and the roller 347a below to move together, so as to realize the work of moving, compacting and vibrating at the same time to compact the material.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction auxiliary device for all-fiber nano-insulation for the top of a heating furnace, comprising a long track (100) approximately the same length as the channel steel of the furnace top, characterized in that, Also includes: The positioning mechanism (200) consists of four sets, which are located at the four corners of the surface of the long track (100) and fix the long track (100) to the channel steel by clamping. A mobile vibratory compaction mechanism (300) includes a movable seat (310) that slides along the surface of the long track (100), a moving component (320), a lifting component (330), and a vibratory compaction component (340). The vibratory compaction component (340) generates vibration to compact nanomaterials. The lifting component (330) is used to control the height of the vibratory compaction component (340), while the moving component (320) drives the movable seat (310) to travel along the surface of the long track (100).

2. The auxiliary construction device for all-fiber nano-insulation of the furnace top according to claim 1, characterized in that, The vibratory compaction assembly (340) includes: The fixed frame (341) is located below the movable seat (310), and each of its four top corners is bolted with a movable column (342), and there is also a compression spring (343) sleeved on the surface of the movable column (342). The cover (344) is bolted to the side of the fixing frame (341); The vibrating roller unit (347) consists of several units, and is designed in the shape of a roller. It is rotatably connected to the fixed frame (341) and serves as the vibration source for the entire device. The second motor (345), which is bolted to the inside of the housing (344), is used to provide power to the vibrating roller unit (347); The drive shaft (346) transmits the power of the second motor (345) to the vibrating roller unit (347), and the drive shaft (346) is rotatably connected to the inside of the cover (344).

3. The auxiliary construction device for all-fiber nano-insulation of the furnace top according to claim 2, characterized in that: The vibratory roller unit (347) includes a roller body (347a), a rotating rod (347b), and an eccentric wheel (347c). The roller body (347a) is rotatably connected to the fixed frame (341) via bearings. The rotating rod (347b) is rotatably connected to the inner wall of the roller body (347a) via bearings. There are several eccentric wheels (347c) and they are bolted to the surface of the rotating rod (347b). The rotating rod (347b) is connected to the transmission shaft (346) via bevel gear transmission. The transmission shaft (346) is fixed to the output shaft of the second motor (345).

4. The auxiliary construction device for all-fiber nano-insulation of the furnace top according to claim 3, characterized in that: The eccentric wheel (347c) has a semi-circular design.

5. The auxiliary construction device for all-fiber nano-insulation of the furnace top according to claim 2, characterized in that: The lifting assembly (330) includes an electric cylinder (331), a lifting seat (332), and a sliding hole (333). There are two sets of electric cylinders (331) which are respectively bolted to both sides of the movable seat (310). The output shaft of the electric cylinder (331) is bolted to the lifting seat (332). The sliding hole (333) is opened on the surface of the lifting seat (332). The movable column (342) is slidably connected to the inner wall of the sliding hole (333). The two ends of the compression spring (343) are in contact with the surfaces of the fixed frame (341) and the lifting seat (332), respectively, and are located close to the sliding hole (333).

6. The auxiliary construction device for all-fiber nano-insulation of the furnace top according to claim 5, characterized in that: When the device is not in operation, the top of the movable column (342) is in contact with the top surface of the lifting seat (332).

7. The auxiliary construction device for all-fiber nano-insulation of the furnace top according to claim 5, characterized in that: The moving component (320) includes a toothed track (321), a transmission rod (322), a transmission gear (323), and a first motor (324) bolted to the inside of the long track (100). The transmission rod (322) is fixed to the top of the moving seat (310) by a bearing seat, enabling it to rotate. The first motor (324) is bolted to the side of the moving seat (310) and located next to the electric cylinder (331). The output shaft of the first motor (324) is fixed to the transmission rod (322). The transmission gear (323) is bolted to the surface of the transmission rod (322) and meshes with the surface of the toothed track (321).

8. The auxiliary construction device for all-fiber nano-insulation of the furnace top according to claim 7, characterized in that: The top of the movable seat (310) is a partially open design for the transmission gear (323) to pass through.

9. The auxiliary construction device for all-fiber nano-insulation of the furnace top according to claim 1, characterized in that: The positioning mechanism (200) consists of a frame (210), a clamping member (220), a screw (230), a handwheel (240), and a threaded sleeve (250). There are four sets of frames (210) which are respectively bolted to both sides of the surface of the long track (100). The threads on the surface of the screw (230) are symmetrically designed and penetrate the frame (210) and the long track (100). The screw (230) is rotatably connected to the frame (210) and the long track (100) at the penetration point. The clamping member (220) is slidably connected to the surface of the frame (210). The clamping member (220) is connected to the surface of the screw (230) through the internally fixed threaded sleeve (250). The handwheel (240) is located at the end of the screw (230) as a force-bearing point.

10. The auxiliary construction device for all-fiber nano-insulation of the furnace top according to claim 1, characterized in that: The threads on both sides of the screw (230) are symmetrically designed. The clamping member (220) is composed of a metal frame and an L plate welded together. The threaded sleeve (250) is located inside the metal frame of the clamping member (220) and is threadedly connected to the surface of the screw (230).

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