A rotating support device for a kaldo furnace

By designing a rotating support device for the Kaldor furnace, a cam is used to push a pressurizing piston to pressurize the liquid storage box, and lubricant is applied to the outside of the idler roller. This solves the problem of short service life of the idler roller, and achieves an extension of the idler roller's service life and a reduction in maintenance costs.

CN224593678UActive Publication Date: 2026-08-04JIANGYIN BOWAY MASCH COMPLETE EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN BOWAY MASCH COMPLETE EQUIP CO LTD
Filing Date
2025-07-16
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing Kaldor furnaces, friction between the idler rollers and the furnace body during operation results in a short service life for the idler rollers, leading to a high frequency of equipment maintenance.

Method used

A rotary support device for a Kaldor furnace was designed. Through the combination of rollers, cams, pressure cylinders, push rods, pressure pistons, springs, and one-way valves for air intake, the cams, in contact with the wear-resistant pads, push rods to drive the pressure pistons to pressurize the liquid storage box. Lubricating fluid is then applied to the outer side of the rollers through a distribution plate to reduce friction.

Benefits of technology

This effectively reduces the friction between the idler roller and the inner ring of the Kaldor furnace, extends the service life of the idler roller, reduces the frequency of equipment maintenance and repair, and lowers operating and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a Kaldor furnace rotating support device, belonging to the technical field of support device technology. It includes an outer frame and an inner ring of the Kaldor furnace. Several support columns are fixedly installed inside the outer frame, and roller frames are fixedly installed on the top of each support column. The beneficial effects of this utility model are: when the inner ring of the Kaldor furnace rotates on the rollers, it drives the rollers to rotate together. During the rotation of the rollers, the cam repeatedly presses against the push rod, causing the push rod to push the pressure piston into the pressure cylinder. When the push rod moves into the pressure cylinder, the pressure piston can increase the pressure in the liquid storage box. After the pressure in the liquid storage box increases, the lubricating fluid inside will be introduced into the distribution plate through the connecting pipe and then circulated to coat the outside of the rollers. This effectively reduces the friction between the rollers and the inner ring of the Kaldor furnace, thereby extending the service life of the rollers, reducing the frequency of equipment maintenance and repair, and lowering operating and maintenance costs.
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Description

Technical Field

[0001] This utility model relates to the field of support device technology, specifically a Kaldo furnace rotary support device. Background Technology

[0002] The Kaldor converter, also known as an oxygen-blown converter, was successfully tested by B. Kalling of Sweden in 1956 and put into production at the Domnavet plant. It is named after the first syllables of both names, "kal" and "do." The Kaldor converter is widely used in the smelting of copper concentrate, scrap copper, anode mud, and scrap gold. It operates at an incline, with the furnace body placed on inner rollers of a support ring. The furnace body can rotate around its longitudinal axis, with a maximum speed of 30 revolutions per minute. The oxygen lance is inserted obliquely into the furnace through the opening and can oscillate.

[0003] Currently, existing Kaldor furnaces rotate on the idler rollers during operation, generating friction with the rollers, which in turn causes friction between the idler rollers and the furnace body, resulting in a short service life for the idler rollers. To address this, we propose a rotating support device for the Kaldor furnace. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a Kaldo furnace rotary support device, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a Kaldor furnace rotary support device, comprising an outer frame and an inner ring of the Kaldor furnace. Several support columns are fixedly installed inside the outer frame. A roller frame is fixedly installed on the top of each support column. A roller shaft is rotatably installed inside the roller frame. A support roller is fixedly installed on the outer side of the roller shaft. A cam is fixedly installed at one end of the roller shaft. A pressure cylinder is fixedly installed on the top of each support column and on one side of the roller frame. A push rod is slidably installed inside the top of the pressure cylinder. A wear-resistant pad is fixedly installed at one end of the push rod. The cam cooperates with the wear-resistant pad. A pressure piston is fixedly installed at the other end of the push rod. A spring is installed inside the pressure cylinder. Air inlets are provided inside both the push rod and the pressure piston. A one-way valve is installed inside each air inlet.

[0006] Furthermore, a liquid storage box is fixedly installed at the bottom of the support column, and a pressure boosting hole is opened inside the top of both the support column and the liquid storage box. A wiping seat is fixedly installed at the top of the support column, and a liquid distribution plate is provided inside the top of the wiping seat. A connecting pipe is provided at the input end of the liquid distribution plate, and the connecting pipe extends through the top of the support column and the liquid storage box to the bottom inside the liquid storage box.

[0007] Furthermore, the pressurizing piston cooperates with the spring, and the pressurizing piston is slidably connected to the inner wall of the pressurizing cylinder.

[0008] Furthermore, the top of the wiping seat is provided with an arc-shaped groove that mates with the idler roller.

[0009] Furthermore, the liquid distribution plate has several liquid outlet holes inside, and the roller cooperates with the liquid distribution plate.

[0010] Furthermore, a filling port is provided on one side of the liquid storage box.

[0011] This utility model provides a rotary support device for a Kaldo furnace, which has the following advantages: This Kaldor furnace rotating support device, through the arrangement of rollers, cams, pressure cylinders, push rods, pressure pistons, springs, air inlets, and one-way air inlets, can drive the idler rollers to rotate together as the inner ring of the Kaldor furnace rotates on the idler rollers. During the rotation of the idler rollers, the cams repeatedly squeeze the push rods, causing the push rods to push the pressure pistons into the pressure cylinders. As the push rods move into the pressure cylinders, the pressure pistons can increase the pressure in the liquid storage box. After the pressure in the liquid storage box increases, the lubricating fluid inside will be introduced into the liquid distribution plate through the connecting pipe and then circulated to coat the outside of the idler rollers. This can effectively reduce the friction between the idler rollers and the inner ring of the Kaldor furnace, thereby extending the service life of the idler rollers, reducing the frequency of equipment maintenance and repair, and lowering operating and maintenance costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This utility model Figure 2 Enlarged view of point A in the image; Figure 4 This is a cross-sectional view of the liquid storage box and support column of this utility model; Figure 5 This is a cross-sectional view of the pressure cylinder of this utility model.

[0013] In the diagram: 1. Outer frame; 2. Kaldor furnace inner ring; 3. Support column; 4. Roller frame; 5. Roller shaft; 6. Support roller; 7. Cam; 8. Pressure cylinder; 9. Push rod; 10. Wear-resistant pad; 11. Pressure piston; 12. Spring; 13. Air inlet; 14. Air inlet check valve; 15. Liquid storage box; 16. Pressure boosting hole; 17. Wiping seat; 18. Liquid distribution plate; 19. Connecting pipe. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Please see Figures 1 to 5 This utility model provides a technical solution: a Kaldor furnace rotating support device, including an outer frame 1 and an inner ring 2 of the Kaldor furnace. Several support columns 3 are fixedly installed inside the outer frame 1. A roller frame 4 is fixedly installed on the top of each support column 3. A roller shaft 5 is rotatably installed inside the roller frame 4. A support roller 6 is fixedly installed on the outer side of the roller shaft 5. A cam 7 is fixedly installed at one end of the roller shaft 5. A pressure cylinder 8 is fixedly installed on the top of each support column 3 and on one side of the roller frame 4. A push rod 9 is slidably installed inside the top of the pressure cylinder 8. A wear-resistant pad 10 is fixedly installed at one end of the push rod 9. The cam 7 cooperates with the wear-resistant pad 10. A pressure piston is fixedly installed at the other end of the push rod 9. 11. A spring 12 is installed inside the pressure cylinder 8. An air inlet 13 is opened inside the push rod 9 and the pressure piston 11. An air inlet one-way valve 14 is installed inside the air inlet 13. When the roller 6 and the cam 7 rotate, the cam 7 can contact the wear-resistant pad 10 and push the push rod 9 to press down into the pressure cylinder 8. This causes the pressure piston 11 to push the air in the pressure cylinder 8 into the liquid storage box 15 through the pressure boosting hole 16 to pressurize the inside of the liquid storage box 15. After the pressurization is completed, the spring 12 returns to its original position and pushes the pressure piston 11 and the push rod 9 to their original positions. At the same time, the air inlet one-way valve 14 opens to allow outside air to enter the pressure cylinder 8, which is convenient for pressurizing the liquid storage box 15 next time.

[0016] A liquid storage box 15 is fixedly installed at the bottom of the support column 3. Both the support column 3 and the liquid storage box 15 have pressure boosting holes 16 inside their tops. A trowel 17 is fixedly installed at the top of the support column 3. A liquid distribution plate 18 is provided inside the top of the trowel 17. A connecting pipe 19 is provided at the input end of the liquid distribution plate 18. The connecting pipe 19 passes through the top of the support column 3 and the liquid storage box 15 and extends to the bottom inside the liquid storage box 15. The liquid storage box 15 is filled with lubricating fluid. When the pressure inside the liquid storage box 15 increases, the lubricating fluid will enter its interior through one end of the connecting pipe 19 and then be transported into the liquid distribution plate 18 through the connecting pipe 19. This will apply the lubricating fluid to the outside of the idler roller 6, thereby reducing the friction between the inner ring 2 of the Kaldor furnace and the idler roller 6 when they rotate, and extending the service life of the idler roller 6.

[0017] The pressure piston 11 cooperates with the spring 12, and the pressure piston 11 is slidably connected to the inner wall of the pressure cylinder 8. With the setting of the spring 12, when the push rod 9 pushes the pressure piston 11 to slide into the pressure cylinder 8, the pressure piston 11 will squeeze the spring 12. When the cam 7 is no longer in contact with the wear-resistant pad 10, the spring 12 will rebound and push the pressure piston 11 to move upward, so that the push rod 9 and the wear-resistant pad 10 are reset.

[0018] The top of the wiping seat 17 is provided with an arc-shaped groove that cooperates with the idler roller 6; by rotating the idler roller 6, its outer side can rotate cyclically to pick up lubricant in the arc-shaped groove on the top of the wiping seat 17.

[0019] The liquid distribution plate 18 has several liquid outlet holes inside, and the idler roller 6 cooperates with the liquid distribution plate 18. After the lubricant is introduced into the liquid distribution plate 18, it can overflow through several liquid outlet holes, thereby ensuring that the lubricant can be evenly applied to the surface of the idler roller 6.

[0020] A filler port is provided on one side of the reservoir 15; lubricant can be added into the reservoir 15 through the filler port.

[0021] In summary, in use, the Kaldor furnace rotating support device causes the inner ring 2 of the Kaldor furnace to rotate along with the roller 6 as the roller 6 rotates. During the rotation of the roller 6, the cam 7 rotates cyclically. When the cam 7 rotates, it contacts the wear-resistant pad 10 and pushes the push rod 9 downwards into the pressure cylinder 8. This causes the pressure piston 11 to push the air in the pressure cylinder 8 through the pressure boosting hole 16 into the liquid storage box 15, pressurizing the inside of the liquid storage box 15. When the cam 7 no longer contacts the wear-resistant pad 10, the spring 12... The springback will push the pressurizing piston 11 upward, causing the push rod 9 and wear pad 10 to reset. At the same time, the air intake check valve 14 opens, allowing outside air to enter the pressurizing cylinder 8, facilitating the next pressurization of the liquid storage box 15. After the pressure in the liquid storage box 15 increases, the lubricant will enter its interior through one end of the connecting pipe 19 and then be transported into the liquid distribution plate 18 through the connecting pipe 19. This will apply the lubricant to the outside of the idler roller 6, thereby reducing the friction between the inner ring 2 of the Kaldor furnace and the idler roller 6 when they rotate, and extending the service life of the idler roller 6.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rotary support device for a Kaldo furnace, comprising an outer frame (1) and a Kaldo furnace inner ring (2), characterized in that: The outer frame (1) has several support columns (3) fixedly installed inside. A roller frame (4) is fixedly installed on the top of the support column (3). A roller shaft (5) is rotatably installed inside the roller frame (4). A support roller (6) is fixedly installed on the outside of the roller shaft (5). A cam (7) is fixedly installed on one end of the roller shaft (5). A pressure cylinder (8) is fixedly installed on the top of the support column (3) and on one side of the roller frame (4). A push rod (9) is slidably installed inside the top of the pressure cylinder (8). A wear-resistant pad (10) is fixedly installed on one end of the push rod (9). The cam (7) cooperates with the wear-resistant pad (10). A pressure piston (11) is fixedly installed on the other end of the push rod (9). A spring (12) is provided inside the pressure cylinder (8). An air inlet (13) is opened inside both the push rod (9) and the pressure piston (11). An air inlet one-way valve (14) is provided inside the air inlet (13).

2. A rotary support device for a Kaldo furnace according to claim 1, characterized in that: A liquid storage box (15) is fixedly installed at the bottom of the support column (3). A pressure boosting hole (16) is opened inside the top of both the support column (3) and the liquid storage box (15). A wiping seat (17) is fixedly installed at the top of the support column (3). A liquid distribution plate (18) is provided inside the top of the wiping seat (17). A connecting pipe (19) is provided at the input end of the liquid distribution plate (18). The connecting pipe (19) extends through the top of the support column (3) and the liquid storage box (15) to the bottom inside the liquid storage box (15).

3. A rotary support device for a Kaldo furnace according to claim 1, characterized in that: The pressurizing piston (11) cooperates with the spring (12), and the pressurizing piston (11) is slidably connected to the inner wall of the pressurizing cylinder (8).

4. A rotary support device for a Kaldo furnace according to claim 2, characterized in that: The top of the wiping seat (17) is provided with an arc-shaped groove that cooperates with the idler roller (6).

5. A rotary support device for a Kaldo furnace according to claim 2, characterized in that: The liquid distribution plate (18) has several liquid outlet holes inside, and the roller (6) cooperates with the liquid distribution plate (18).

6. A rotary support device for a Kaldo furnace according to claim 2, characterized in that: The liquid storage box (15) has an oil filling port on one side.