Electric melting furnace for processing fibrous rock wool

By introducing locking and alarm structures into the hoisting structure of the electric melting furnace for processing fiber rock wool, the safety hazards caused by wire rope breakage or motor failure have been resolved, achieving equipment safety redundancy and efficient maintenance, and improving production safety and reliability.

CN121474854BActive Publication Date: 2026-06-09GUANGDONG ZHONGKAI NEW MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG ZHONGKAI NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-11-07
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The hoisting devices of existing electric melting furnaces used for processing fiber rock wool are prone to wire rope breakage or motor failure in high-temperature environments, which can cause the bucket to fall, posing a serious safety hazard and potentially leading to accidents such as equipment damage, fires, and personal injury.

Method used

A hoisting structure including locking structure one and locking structure two was designed. The locking block and the locking plate are automatically triggered by gravity and instantaneous deformation of the return spring to form a mechanical lock. An alarm is issued through a linkage alarm structure to ensure equipment safety. At the same time, a protective structure is set up for automatic lubrication to prevent wear.

Benefits of technology

It effectively prevents the bucket from falling, improves equipment safety and reliability, shortens troubleshooting time, reduces maintenance frequency and cost, and ensures safety and stability throughout the entire life cycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of refractory material production equipment, in particular to a fiber rock wool processing electric smelting furnace, which comprises a processing equipment composed of an electric smelting furnace body, a moving mechanism arranged outside the electric smelting furnace body, a mounting table and a tipping bucket, and further comprises a hoisting structure arranged on the mounting table and used for lifting the tipping bucket; an auxiliary mechanism is arranged in the frame body, and the auxiliary mechanism comprises a locking structure one and a locking structure two. The fiber rock wool processing hard electric smelting furnace is provided with the linkage locking structure one and the locking structure two, when the extreme situation of steel wire rope fracture or driving motor failure occurs, the structure utilizes the instantaneous deformation of gravity and the reset spring two 25, can automatically and rapidly trigger the tooth clamping of the locking block and the locking plate, and simultaneously forms a second locking line through the cooperation of the supporting plate and the clamping tooth, effectively solves the major safety hidden danger that the tipping bucket may fall due to single-point failure in the prior art, and greatly enhances the safety of the equipment.
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Description

Technical Field

[0001] This application relates to the field of refractory material production equipment technology, and in particular to an electric melting furnace for processing fiber rock wool. Background Technology

[0002] As a high-performance, energy-saving, and environmentally friendly thermal insulation material, the core of rock wool production lies in melting raw materials such as basalt into a high-temperature molten metal in a hard electric arc furnace. Currently, feeding materials into the electric arc furnace typically employs a hoisting casting device. This type of device generally includes a moving frame, a lifting mechanism, and a tilting hopper pulled by steel wire ropes, enabling remote, mechanized operation. This avoids direct human contact with the high-temperature furnace opening, improving safety and meeting the process requirements of batch and quantitative feeding.

[0003] A search revealed a patent document with publication number CN215969355U that discloses an electric furnace casting device, including a movable frame. A hydraulic rod is fixedly installed on the top surface of the movable frame, and a support plate is fixedly connected to the top of the hydraulic rod. An L-shaped frame is welded to the top surface of the support plate. This application connects the hook of a steel wire rope to the U-shaped rod of the tilting cover, so that the steel wire rope pulls the tilting cover and the heat preservation box inserted inside it to rotate around the side column base point, causing the raw material solution in the heat preservation box to pour out.

[0004] Regarding the aforementioned related technologies, the inventors have discovered at least the following problems: the application lacks a mechanical locking mechanism to prevent the suspension rope from breaking. Because the wire rope is exposed to high temperatures for extended periods, it is prone to metal fatigue, overload, or accidental damage, leading to breakage. Alternatively, the motor and its braking system may suddenly malfunction, causing the entire hopper, fully loaded with molten high-temperature material, to instantly become unstable and fall or violently swing back under gravity. This could not only cause severe equipment damage and production interruption but also potentially lead to catastrophic accidents such as high-temperature melt leakage, fire, or even personal injury. Therefore, an electric melting furnace for processing fiber rock wool is proposed to solve the aforementioned problems. Summary of the Invention

[0005] In order to improve the safety of casting production and address the shortcomings of existing technologies, this application provides an electric melting furnace for processing fiber rock wool, which has advantages such as active safety protection and solves the problems mentioned above.

[0006] This application provides an electric melting furnace for processing fiber rock wool, employing the following technical solution:

[0007] An electric melting furnace for processing fiber rock wool includes an electric melting furnace body, a moving mechanism disposed outside the electric melting furnace body, a mounting platform, and a tipping bucket, forming a processing device. The processing device further includes a hoisting structure disposed on the mounting platform for lifting the tipping bucket.

[0008] The hoisting structure includes a drive unit, a sliding table, and a frame.

[0009] An auxiliary mechanism is provided inside the frame. The auxiliary mechanism consists of a locking structure one, a locking structure two, and an alarm structure. The locking structure one and the locking structure two are used in conjunction. The locking structure one includes a locking plate and a locking member. The locking member includes a slide seat that is slidably disposed inside the frame and a locking block that is fixed to the bottom side of the slide seat and engages with the locking plate. The top side of the slide seat is provided with a guide slope that cooperates with the slide table, and a guide groove is provided on the guide slope. A reset member is provided between the slide table and the frame. There are two slide seats.

[0010] The second locking structure includes two support plates arranged vertically. Two shafts are installed on the outside of the top support plate. A concave frame is rotatably installed on the outside of one of the shafts. A locking tooth is fixed on the bottom side of the concave frame. A locking shaft is fixed on the outer wall of the bottom support plate. An elastic element is provided between the two shafts.

[0011] Optionally: the mounting platform is fixed to the top side of the moving mechanism, the tipping bucket is rotatably mounted on the right edge of the mounting platform, a connecting arm is hinged between the frame and the tipping bucket, the slide is connected to the driving component, and the slide is disposed inside the frame.

[0012] Optionally: The driving component includes a drive motor fixed to the top side of the mounting platform, a drive spindle fixed to the output shaft of the drive motor, a spool bolted to the outer surface of the drive spindle, a suspension rope wound around the outer surface of the spool, and the bottom end of the suspension rope fixed to the top side of the slide table.

[0013] Optionally: A limiting seat that is slidably connected to the locking plate is installed on the outer wall of the slide table. The frame is hollow inside. A sliding opening communicating with the outside is opened on the bottom side of the frame. A limiting member for limiting the sliding seat is provided in the sliding opening. The limiting member includes a limiting rod fixed between the inner walls of opposite sides of the sliding opening. The limiting rod passes through the interior of the two sliding seats. The two sliding seats are distributed opposite each other. A return spring is installed between the side of the two sliding seats that is separated from the inner wall of the sliding opening.

[0014] Optionally: The slide table is in the shape of an isosceles trapezoid, the two slide seats are symmetrically distributed, and the guide slopes of the two slide seats are adapted to the slope of the slide table. With the deformation of the limiting member, the two slide seats can be opened and adjusted. A guide block is fixed on the outer wall of the slope of the slide table. The guide block is slidably connected to the guide groove. A protective structure for lubricating the guide block and the guide groove is provided on the top side of the slide table.

[0015] Optionally: The reset component includes a guide rod fixed to the top side of the slide table, and the guide rod passes through the inside of the frame. A reset spring is installed on the outer surface of the guide rod. The reset component is used to reset the slide block and cooperates with the guide block and guide groove to slide open the two slide blocks.

[0016] Optionally: The locking plate is vertically disposed outside the frame, and a number of equally spaced teeth are fixed on the side of the locking plate near the frame, wherein the locking block engages with two adjacent teeth, and the number of locking plates is two.

[0017] Optionally: The second locking structure is located between the two slides, the two support plates are respectively hinged to the two slides, and the elastic element includes two connecting seats, with a tension spring fixed between the two connecting seats.

[0018] Optionally: An alarm structure is provided between the locking block and the frame. The alarm structure includes a pressure sensing block, a reciprocating rod and a trigger block are provided below the pressure sensing block, the trigger block is fixed to the top of the reciprocating rod, a guide plate is fixed to the top side of the locking block, and a sliding groove is provided inside the guide plate. A guide wheel that rolls with the sliding groove is installed on the bottom bearing of the reciprocating rod. The sliding groove is composed of a straight groove and a wave groove. A guide rod that penetrates the interior of the trigger block is fixed to the bottom side of the frame, and a buffer spring is installed between the trigger block and the frame.

[0019] Optionally, the protective structure includes a liquid storage cylinder and a pressure cylinder detachably mounted on the slide. A squeeze plug extending outward is slidably disposed inside the pressure cylinder. The top side of the squeeze plug is connected to the inner wall of the frame. Two valve pipes are installed on the outer wall of the pressure cylinder. One valve pipe has a spray pipe facing the guide groove at its end, and the other valve pipe has an infusion pipe communicating with the liquid storage cylinder at its end.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This invention, by setting up a first and a second locking structure in a linkage, can automatically and quickly trigger the locking block and locking plate to engage in the teeth-locking action when extreme situations such as wire rope breakage or drive motor failure occur, by utilizing gravity and the instantaneous deformation of the second return spring. At the same time, the cooperation between the support plate and the locking teeth forms a second line of defense, effectively solving the major safety hazard of bucket falling due to single-point failure in the prior art, and greatly enhancing the safety of the equipment.

[0022] 2. This invention links mechanical locking action with electrical alarm signals. When the locking structure is triggered, the guide plate fixed on the locking block moves accordingly. At this time, the wave groove in the slide will drive the guide wheel and the reciprocating rod, forcing the trigger block to hit the pressure sensor block. Thus, the alarm structure sends an audible and visual alarm to the operator, which not only warns of the occurrence of the fault, but also greatly shortens the fault diagnosis and response time, and improves the maintainability and operational transparency of the equipment.

[0023] 3. This invention achieves automatic and timed lubrication of the slide table through a protective structure. During each stroke of the slide table, the frame squeezes the pressure cylinder's squeeze plug, precisely spraying lubricating oil from the reservoir through the nozzle onto the contact surface between the guide block and the guide groove. This effectively reduces friction and wear, prevents the locking function from failing due to rust or jamming, ensures the absolute reliability of the emergency safety mechanism throughout the equipment's entire life cycle, and reduces the frequency and cost of manual maintenance. Attached Figure Description

[0024] Figure 1 This is a three-dimensional view of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the tipping bucket structure of this application;

[0026] Figure 3 This is a cross-sectional view of the hoisting structure of this application;

[0027] Figure 4 This is a cross-sectional view of the frame of this application;

[0028] Figure 5 This is a cross-sectional view of the locking structure of this application;

[0029] Figure 6 This application Figure 5 A magnified structural diagram of structure A is shown below;

[0030] Figure 7 This is a schematic diagram of the second locking structure of this application;

[0031] Figure 8 This is a schematic diagram of the alarm structure of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Processing equipment; 11. Electric melting furnace body; 12. Moving mechanism; 13. Mounting platform; 14. Tipping bucket; 15. Lifting structure; 151. Drive motor; 152. Drive spindle; 153. Wire wheel; 154. Slide table; 1541. Guide block; 155. Connecting arm; 156. Frame; 157. Limiting seat; 158. Slide opening; 2. Locking structure one; 21. Locking plate; 211. Tooth; 22. Locking component; 221. Slide seat; 2210. Guide slope; 2211. Guide groove; 222. Locking block; 23. Reset component; 231 1. Guide rod; 2. Return spring one; 2. Limit rod; 2. Return spring two; 3. Locking structure two; 3. Support plate; 3. Shaft; 3. Concave frame; 3. Clamping tooth; 3. Connecting seat; 3. Tension spring; 3. Locking shaft; 4. Alarm structure; 4. Pressure sensor block; 4. Reciprocating rod; 4. Trigger block; 4. Guide plate; 4. Slide groove; 46. Guide wheel; 47. Guide rod; 48. Buffer spring; 5. Protection structure; 51. Liquid reservoir; 52. Pressure cylinder; 53. Squeeze plug; 54. Valve pipe; 55. Nozzle. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0035] Example 1, such as Figures 1-5 As shown, an electric melting furnace for processing fiber rock wool includes a furnace body 11, a moving mechanism 12 disposed outside the furnace body 11, a mounting platform 13, and a tipping bucket 14, forming a processing equipment 1. The mounting platform 13 is fixed to the top side of the moving mechanism 12, forming a processing base that can be flexibly adjusted in position, allowing the furnace body 11 to quickly move to different workstations according to production needs, reducing the space limitations caused by fixed equipment installation and improving the flexibility of the production line layout. In this embodiment, the tipping bucket 14 is rotatably mounted on the right edge of the mounting platform 13. The processing equipment 1 also includes a lifting structure 15 disposed on the mounting platform 13 for lifting the tipping bucket 14. Specifically, the lifting structure 15 includes a drive component, a slide 154, and a frame 156. A connecting arm 155 is hinged between the frame 156 and the tipping bucket 14. The slide 154 is connected to the drive component and is disposed inside the frame 156. It should be noted that the moving mechanism 12 consists of a telescopic cylinder and an electric slide.

[0036] The driving component in this embodiment includes a drive motor 151 fixed to the top side of the mounting platform 13. A drive spindle 152 is fixed on the output shaft of the drive motor 151. A spool 153 is bolted to the outer surface of the drive spindle 152. A hanging rope is wound around the outer surface of the spool 153, and the bottom end of the hanging rope is fixed to the top side of the slide table 154. By rotating the drive motor 151 in both directions, the length of the hanging rope can be precisely controlled by the spool 153, thereby precisely controlling the lifting position of the slide table 154 within the frame 156. This controls the tilting start angle and tilting speed of the tipping bucket 14, thus meeting the process requirements of fine feeding and preventing the fiber rock wool raw material from spilling.

[0037] To improve material guiding safety, an auxiliary mechanism is provided inside the frame 156 in this embodiment. The auxiliary mechanism consists of a locking structure 1 (2), a locking structure 2 (3), and an alarm structure 4. The locking structure 1 (2) and the locking structure 2 (3) work together in a coordinated manner. The locking structure 1 (2) includes a locking plate 21 and a locking member 22. The locking member 22 includes a slide block 221 slidably disposed inside the frame 156 and a locking block 222 fixed to the bottom side of the slide block 221 and engaging with the locking plate 21. The top side of the slide block 221 is provided with a guide slope 2210 that cooperates with the slide table 154, and a guide groove 2211 is provided on the guide slope 2210. A reset mechanism is provided between the slide table 154 and the frame 156. The number of slides 221 is two; a limiting seat 157 that is slidably connected to the locking plate 21 is installed on the outer wall of the slide 154, which can ensure that the slide 154 moves downward and improve the hoisting stability; specifically, the frame 156 is hollow inside, and a sliding opening 158 communicating with the outside is opened on the bottom side of the frame 156. A limiting member for limiting the slide 221 is provided in the sliding opening 158. The limiting member includes a limiting rod 24 fixed between the inner walls of opposite sides of the sliding opening 158. The limiting rod 24 passes through the interior of the two slides 221. The two slides 221 are distributed opposite each other, and a return spring 25 is installed between the side of the two slides 221 and the inner wall of the sliding opening 158.

[0038] It should be noted that the slide table 154 is an isosceles trapezoid in shape, with two symmetrically distributed slide blocks 221. The guide slopes 2210 of the two slide blocks 221 are adapted to the slope of the slide table 154, and in conjunction with the deformation of the limiting component, the two slide blocks 221 can be opened and adjusted. A guide block 1541 is fixed on the outer wall of the slope of the slide table 154, and the guide block 1541 is slidably connected to the guide groove 2211, ensuring that the slide table 154 and the slide blocks 221 move relative to each other. The locking structure 2 will not misalign or disengage, making the unlocking action smooth and controllable. Specifically, in this embodiment, the locking structure 2 cooperates with the guide slope 2210 of the slide 221 and the isosceles trapezoidal slope of the slide 154 to automatically open the two slides 221 when the slide 154 moves down. At this time, the locking block 222 engages with the teeth 211 of the locking plate 21 to form a mechanical lock, preventing the slide 154 from accidentally rebounding or sliding down due to overload, which significantly improves the safety of the hoisting process.

[0039] It is understandable that by cooperating with the isosceles trapezoidal inclined surface of the slide table 154 and the guide inclined surface 2210 of the slide block 221, and utilizing the preload of the return spring 25, an efficient trigger locking function is formed. This trigger locking function remains unlocked when the hoisting rope is under force. Once the hoisting rope becomes slack or breaks, the slide table 154 loses tension, and the return spring 25 can instantly push the two slide blocks 221 to close inward along the limit rod 24, causing the locking block 222 to engage in the teeth 211 of the locking plate 21.

[0040] In this embodiment, the reset component 23 includes a guide rod 231 fixed to the top side of the slide table 154, and the guide rod 231 penetrates the interior of the frame 156. A reset spring 232 is installed on the outer surface of the guide rod 231. The reset component 23 is used to reset the slide block 221. It cooperates with the guide block 1541 and the guide groove 2211 to push open the two slide blocks 221. There are at least two reset components 23 to ensure that the slide table 154 can automatically reset by spring force when the power is off or there is a malfunction, avoiding a hovering state. The design of the double reset components 23 distributes the force, reduces the risk of fatigue fracture of the single spring, and improves the fault tolerance of the system. Specifically, the locking plate 21 is vertically set on the outside of the frame 156. The locking plate 21 is fixed to the side wall of the mounting platform 13 by bolts. Several teeth 211 are fixed on the side of the locking plate 21 near the frame 156. The locking block 222 engages with two adjacent teeth 211. There are two locking plates 21.

[0041] Example 2, as follows Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the locking structure 3 includes two support plates 31 arranged vertically. Two shafts 32 are mounted on the outside of the top support plate 31. A concave frame 33 is rotatably mounted on the outside of one of the shafts 32. A locking tooth 34 is fixed to the bottom side of the concave frame 33, and a locking shaft 37 is fixed to the outer wall of the bottom support plate 31. A spring is provided between the two shafts 32. Specifically, the locking structure 3 is located between two slide blocks 221. The two support plates 31 are hinged to the two slide blocks 221 respectively. The spring includes two connecting seats 35, and a tension spring 36 is fixed between the two connecting seats 35. The two support plates 31 can be slidably hinged on one side; one shaft 32 is rotatably mounted, and the other shaft 32 is fixed. There are two elastic components and two locking shafts 37. It should be noted that the bottom side of the locking teeth 34 has an inclined surface. By setting two locking shafts 37 and corresponding locking teeth 34, the locking force is distributed to two different points, avoiding stress concentration. This makes the locking device more stable when subjected to the huge impact load of the tipping bucket 14 falling, less prone to deformation or damage due to single-point overload, significantly enhancing the reliability and structural strength of the locking mechanism. Furthermore, by rotating the concave frame 33, the locking teeth 34 can be released from the locking shafts 37. At this time, the bottom support plate 31 will lift the top support plate 31, causing the two support plates 31 to be distributed in a conical shape.

[0042] It is understandable that the triggering of locking structure 23 is completely synchronized with locking structure 2. When the two slide blocks 221 move outward due to the loss of traction of the suspension rope, they will pull the upper and lower support plates 31 that are hinged to them, thereby driving the concave frame 33 to rotate downward around the shaft 32, so that the locking teeth 34 fixed on its bottom side will eventually engage with the locking shaft 37 to lock.

[0043] Example 3, such as Figure 2 and Figure 8As shown, to enhance the protection effect, an alarm structure 4 is provided between the locking block 222 and the frame 156. The alarm structure 4 includes a pressure sensing block 41. A reciprocating rod 42 and a trigger block 43 are provided below the pressure sensing block 41. The trigger block 43 is fixed to the top of the reciprocating rod 42. A guide plate 44 is fixed to the top side of the locking block 222, and a sliding groove 45 is provided inside the guide plate 44. A guide wheel 46 that rolls with the sliding groove 45 is installed on the bottom bearing of the reciprocating rod 42. The sliding groove 45 is composed of a straight groove and a wave groove. When a fault occurs, the locking block 222 quickly inserts inward, and the guide wheel 46 enters the wave groove section. The contour of the wave groove forces the guide wheel 46 to reciprocate vertically, thereby pushing the reciprocating rod 42 and the trigger block 43 upward, ultimately impacting the pressure sensor block 41 to trigger a fault alarm. Specifically, a guide rod 47 is fixed to the bottom side of the frame 156, penetrating the interior of the trigger block 43. A buffer spring 48 is installed between the trigger block 43 and the frame 156. There are two guide rods 47 and two buffer springs 48. The two guide rods 47 penetrate the trigger block 43, providing precise guidance for its up and down movement, effectively preventing problems such as skewing, jamming, or poor contact with the pressure sensor block 41, ensuring the reliability of the trigger. The two buffer springs 48 provide a reset force for the trigger block 43, allowing it to automatically reset after the alarm is cleared. On the other hand, they buffer the impact action of the trigger block 43, avoiding excessive rigid impact on the pressure sensor block 41, protecting the electronic components, and extending their service life.

[0044] Example 4, such as Figure 5 and Figure 6 As shown, to improve the smoothness of the slide table 154, a protective structure 5 for lubricating the guide block 1541 and the guide groove 2211 is provided on the top side of the slide table 154. The protective structure 5 includes a liquid storage cylinder 51 and a pressure cylinder 52 that are detachably installed on the slide table 154. A squeeze plug 53 extending outward is slidably provided inside the pressure cylinder 52. The top side of the squeeze plug 53 is connected to the inner wall of the frame 156. Two valve pipes 54 are installed on the outer wall of the pressure cylinder 52. A check valve is installed in the valve pipe 54. One valve pipe 54 has a nozzle 55 installed at its end that faces the guide groove 2211, and the other valve pipe 54 has an infusion pipe that communicates with the liquid storage cylinder 51 at its end. Specifically, each time the slide 154 moves, the pressure cylinder 52 performs a fixed pumping stroke, thereby discharging a fixed amount of lubricating oil, avoiding the problems of insufficient lubrication or excessive waste. At the same time, the lubricating oil is precisely sprayed through the nozzle 55 onto the key friction pair between the guide block 1541 and the guide groove 2211, resulting in high lubrication efficiency and significant effect. It should be noted that the extrusion plug 53 is T-shaped, and the reciprocating distance of the extrusion plug 53 or the depth of the pressure cylinder 52 is adapted to the moving distance of the slide 154.

[0045] It is worth mentioning that the ultimate purpose of the protective structure 5 in this embodiment is to ensure that the core moving parts of the locking structure 2—the guide block 1541 and the guide groove 2211—are always in a good lubricated state, which can effectively prevent the failure of unlocking or locking actions caused by dry friction, corrosion or impurities, and effectively ensure the absolute reliability of the mechanical safety mechanism at critical moments.

[0046] Combined with appendix Figures 1-8 The working principle of the above embodiments is as follows:

[0047] First, the connection between the locking teeth 34 and the locking shaft 37 in the second locking structure 3 is in the released state. Start the drive motor 151 to drive the drive main shaft 152 and the reel 153 to rotate, winding the hoisting rope. The hoisting rope pulls the slide table 154 upward, unlocking the first locking structure 2: During the upward process of the slide table 154, the inclined surfaces on both sides cooperate with the guide groove 2211 on the slide block 221 through the guide block 1541. With the help of the second reset spring 25, the two slide blocks 221 are forced to move relative to each other along the limit rod 24. As the slide blocks 221 move, the locking block 222 fixed on the bottom side of the slide block 221 disengages from the teeth 211 of the locking plate 21, thereby realizing mechanical unlocking.

[0048] As the slide table 154 continues to rise, the reset component 23, composed of the reset spring 232 and the guide rod 231, lifts the entire frame 156 upward. The frame 156 pulls the tipping bucket 14 through the connecting arm 155, causing it to flip around the hinge point with the mounting platform 13, pouring the material into the electric furnace body 11. After the feeding is completed, the drive motor 151 slowly reverses and releases the lifting rope. The slide table 154 descends under the action of gravity and the reset component 23. When its inclined surface disengages from the guide inclined surface 2210 of the slide seat 221, the slide seats 221 on both sides reset outward under the elastic force of the reset spring 25. The locking block 222 lightly touches the locking plate 21 again but does not lock it, preparing for the next lifting or safety locking.

[0049] Once the tipping bucket 14 loses the tension of the hoisting rope, the deformation of the return spring 232 causes the slide 154 to move down rapidly. At this time, the inclined surface of the slide 154 quickly slides into the guide inclined surface 2210, which will squeeze the two slide blocks 221, causing them to move in opposite directions and drive the locking block 222 to violently engage in the teeth 211 of the locking plate 21, forming a rigid mechanical lock and preventing the entire device from continuing to fall.

[0050] As the two slide blocks 221 are pushed outward, they pull the upper and lower support plates 31 that are hinged to them. The movement of the support plates 31 will cause the concave frame 33 and the cleats 34 on its bottom side to swing downward, tightly engaging with the locking shaft 37 fixed on the bottom support plate 31. Thus, the second locking structure 3, with the assistance of the tension spring 36, forms an additional linkage locking point, which greatly enhances the safety redundancy of the equipment and prevents locking failure due to single-point failure.

[0051] Furthermore, at the moment the locking block 222 engages with the teeth 211, the guide plate 44 fixed on the locking block 222 moves accordingly. The wave groove in the slide groove 45 on the guide plate 44 forces the guide wheel 46 and the reciprocating rod 42 to move up and down, thereby pushing the trigger block 43 to strike the pressure sensor block 41 above. The pressure sensor block 41 is triggered and immediately sends an alarm to the operator that the system has entered a safe locking state, prompting maintenance.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electric melting furnace for processing fiber rock wool, comprising a processing device (1) consisting of an electric melting furnace body (11), a moving mechanism (12) disposed outside the electric melting furnace body (11), a mounting platform (13), and a tipping bucket (14), characterized in that: The processing equipment (1) also includes a hoisting structure (15) disposed on the mounting platform (13) and used for lifting the tipping bucket (14). The hoisting structure (15) includes a drive unit, a slide (154) and a frame (156). The frame (156) is provided with an auxiliary mechanism, which consists of a locking structure one (2), a locking structure two (3) and an alarm structure (4). The locking structure one (2) and the locking structure two (3) are used in conjunction. The locking structure one (2) includes a locking plate (21) and a locking member (22). The locking member (22) includes a slide seat (221) that is slidably disposed inside the frame (156) and a locking block (222) that is fixed to the bottom side of the slide seat (221) and engages with the locking plate (21). The top side of the slide seat (221) is provided with a guide slope (2210) that engages with the slide table (154), and a guide groove (2211) is provided on the guide slope (2210). A reset member (23) is provided between the slide table (154) and the frame (156). There are two slide seats (221). The second locking structure (3) includes two support plates (31) distributed vertically. Two shafts (32) are installed on the outside of the top support plate (31). A concave frame (33) is rotatably installed on the outside of one of the shafts (32). A locking tooth (34) is fixed on the bottom side of the concave frame (33). A locking shaft (37) is fixed on the outer wall of the bottom support plate (31). An elastic element is provided between the two shafts (32). The frame (156) is hollow inside. The bottom side of the frame (156) has a sliding opening (158) that communicates with the outside. The two sliding blocks (221) are symmetrically distributed, and a return spring (25) is installed between the side of the two sliding blocks (221) and the inner wall of the sliding opening (158).

2. The electric melting furnace for processing fiber rock wool according to claim 1, characterized in that: The mounting platform (13) is fixed to the top side of the moving mechanism (12), the tipping bucket (14) is rotatably mounted on the right edge of the mounting platform (13), a connecting arm (155) is hinged between the frame (156) and the tipping bucket (14), the slide (154) is connected to the driving component, and the slide (154) is located inside the frame (156).

3. The electric melting furnace for processing fiber rock wool according to claim 1, characterized in that: The driving component includes a drive motor (151) fixed to the top side of the mounting platform (13), a drive spindle (152) fixed on the output shaft of the drive motor (151), a spool (153) bolted to the outer surface of the drive spindle (152), a hanging rope wound around the outer surface of the spool (153), and the bottom end of the hanging rope is fixed to the top side of the slide (154).

4. The electric melting furnace for processing fiber rock wool according to claim 1, characterized in that: The outer wall of the slide (154) is equipped with a limiting seat (157) that is slidably connected to the locking plate (21). The slide opening (158) is provided with a limiting member for limiting the slide (221). The limiting member includes a limiting rod (24) fixed between the inner walls of opposite sides of the slide opening (158). The limiting rod (24) passes through the interior of the two slides (221).

5. The electric melting furnace for processing fiber rock wool according to claim 4, characterized in that: The slide (154) is in the shape of an isosceles trapezoid, and the two slides (221) are symmetrically distributed. The guide slope (2210) of the two slides (221) is adapted to the slope of the slide (154) and, with the deformation of the limiting member, the two slides (221) can be opened and adjusted. A guide block (1541) is fixed on the outer wall of the slope of the slide (154). The guide block (1541) is slidably connected to the guide groove (2211). A protective structure (5) for lubricating the guide block (1541) and the guide groove (2211) is provided on the top side of the slide (154).

6. The electric melting furnace for processing fiber rock wool according to claim 5, characterized in that: The reset component (23) includes a guide rod (231) fixed to the top side of the slide (154), and the guide rod (231) passes through the inside of the frame (156). A reset spring (232) is installed on the outer surface of the guide rod (231). The reset component (23) is used to reset the slide (221). It cooperates with the guide block (1541) and the guide groove (2211) to slide and push open the two slides (221).

7. The electric melting furnace for processing fiber rock wool according to claim 1, characterized in that: The locking plate (21) is vertically disposed outside the frame (156). The locking plate (21) has a number of equally spaced teeth (211) fixed on the side near the frame (156). The locking block (222) engages with two adjacent teeth (211). There are two locking plates (21).

8. The electric melting furnace for processing fiber rock wool according to claim 1, characterized in that: The second locking structure (3) is located between the two slides (221), and the two support plates (31) are respectively hinged to the two slides (221). The elastic element includes two connecting seats (35), and a tension spring (36) is fixed between the two connecting seats (35).

9. The electric melting furnace for processing fiber rock wool according to claim 1, characterized in that: An alarm structure (4) is provided between the locking block (222) and the frame (156). The alarm structure (4) includes a pressure sensing block (41). A reciprocating rod (42) and a trigger block (43) are provided below the pressure sensing block (41). The trigger block (43) is fixed to the top of the reciprocating rod (42). A guide plate (44) is fixed to the top side of the locking block (222). A sliding groove (45) is provided inside the guide plate (44). A guide wheel (46) is installed at the bottom bearing of the reciprocating rod (42) and rolls with the sliding groove (45). The sliding groove (45) is composed of a straight groove and a wave groove. A guide rod (47) that penetrates the interior of the trigger block (43) is fixed to the bottom side of the frame (156). A buffer spring (48) is installed between the trigger block (43) and the frame (156).

10. The electric melting furnace for processing fiber rock wool according to claim 5, characterized in that: The protective structure (5) includes a liquid storage cylinder (51) and a pressure cylinder (52) detachably mounted on the slide (154). A squeeze plug (53) extending outward is slidably disposed inside the pressure cylinder (52). The top side of the squeeze plug (53) is connected to the inner wall of the frame (156). Two valve tubes (54) are installed on the outer wall of the pressure cylinder (52). One valve tube (54) has a nozzle (55) facing the guide groove (2211) installed at its end, and the other valve tube (54) has an infusion tube connected to the liquid storage cylinder (51) installed at its end.

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