Convenient-to-operate arc burner for submerged arc furnace
By designing a detachable counterweight box and articulation frame in the mine-hot furnace burner, combining universal wheels and chains, the problems of unbalanced weight and difficulty in operation of the burner are solved, and a more stable carbon rod and furnace eye are achieved Contact reduces operation difficulty.
Patent Information
- Application Number
- CN202421038423.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The burn-through device for the mine furnace is heavy in mass, long in length and unbalanced in weight, which makes it difficult to control the balance, which increases the labor burden of the staff.
A burn-through structure including vertical brackets, horizontal beams, frames, universal wheels and detachable counterweight boxes is designed. Through the combination of articulated frames and chains, the weight balance at the end of the carbon rod is adjusted, and the universal wheels are used. The wheels reduce operation difficulty and ensure smooth contact between the carbon rod and the furnace eye.
The weight balance between the two ends of the burn-through device is achieved, which reduces the difficulty of operation and reduces the labor burden of the staff. The swing of the carbon rod end is restricted through the setting of the chain, avoiding the tilt and damage, and ensuring the carbon rod and the furnace eye. Stable contact.
Smart Images
Figure CN222231300U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of burn-through devices, in particular to a burn-through device for a submerged arc furnace which is easy to operate. Background Art
[0002] Submerged arc furnace, also known as electric arc furnace, is mainly used for reducing and smelting ores. When calcium carbide is discharged from the furnace, it is necessary to use a burner to burn through the furnace eye first. One end of the burner clamps the burn-through carbon rod electrode, and the other end is the burner operating handrail. When burning through the furnace eye, the staff holds the burner operating handrail on the furnace discharge platform and pushes the burner along the track to make the burn-through carbon rod electrode contact the furnace eye. The burn-through carbon rod electrode and the burn-through ground wire pre-buried in the carbon bricks at the bottom of the electric furnace form a loop to generate an arc, and the furnace eye can be burned through.
[0003] In the process of pushing the burner through, the burner through is very heavy, the overall length of the burner through is very long, and the burner through is provided with a carbon rod with one end being heavier than the other end. It is not only difficult for the staff to push the burner through, but also difficult to control the balance of the front and rear ends of the burner through. This not only increases the difficulty of operation for the staff, but also the carbon rod of the burner is not stable when it contacts the furnace eye. Utility Model Content
[0004] In order to solve the above technical problems, the present application provides a burn-through device for an electric arc furnace that is easy to operate.
[0005] The easy-to-operate burner for a submerged arc furnace provided in this application adopts the following technical solution:
[0006] The burn-through device for a submerged arc furnace that is easy to operate comprises a vertical support and a horizontal beam, wherein the horizontal beam is hinged to the top of the vertical support through a hinge frame near the middle, a carbon rod is arranged at the front end of the horizontal beam, and a conductive copper bar connected to the carbon rod is arranged on the horizontal beam; an operating beam is arranged at the rear end of the horizontal beam, a transition beam is arranged between the horizontal beam and the operating beam, and both ends of the transition beam are respectively connected to the horizontal beam and the operating beam through an insulating plate;
[0007] The bottom end of the vertical support is connected to a frame, and both sides of the frame in the width direction are rotatably connected to a wheel;
[0008] The bottom surface of the transition beam is provided with a first counterweight box and a second counterweight box, the first counterweight box is detachably connected to the transition beam through a connecting piece, the second counterweight box is located below the first counterweight box and is connected to the first counterweight box through a chain, and the bottom surface of the second counterweight box abuts against the top surface of the frame.
[0009] Preferably, when the horizontal beam is in a horizontal state, the chain is in a relaxed state, and when one end of the horizontal beam provided with the carbon rod is rotated downward to 10°, the chain is in a tensioned state.
[0010] Preferably, a mounting plate is connected to the bottom surface of the transition beam, the connecting member is a connecting rod, the bottom end of the connecting rod is fixed to the first counterweight box, and the top end of the connecting rod is connected to the mounting plate by bolts.
[0011] Preferably, a first lifting ring is provided at the bottom end of the first counterweight box, a second lifting ring is provided at the top end of the second counterweight box, and a first safety buckle and a second safety buckle are provided at both ends of the chain respectively. The first safety buckle is used in conjunction with the first lifting ring and buckled on the first lifting ring, and the second safety buckle is used in conjunction with the second lifting ring and buckled on the second lifting ring.
[0012] Preferably, the weight of the second ballast box is less than the weight of the first ballast box.
[0013] Preferably, a universal wheel is connected to each of the two sides in the width direction of the frame, and when the outer peripheral wall of the universal wheel and the outer peripheral wall of the wheel abut against the working surface at the same time, the horizontal beam is in a horizontal state.
[0014] Preferably, the two wheels form a first wheel group, and the two universal wheels form a second wheel group. The first wheel group is located at an end of the frame close to the carbon rod, and the second wheel group is located at an end of the frame away from the carbon rod.
[0015] Preferably, a handle is provided at one end of the operating beam away from the transition beam, the handle is triangular in shape, one of the corners of the handle is fixedly connected to the operating beam, and the other two corners of the handle are arranged horizontally.
[0016] Preferably, the handle is tilted downward on a side away from the operating beam.
[0017] In summary, this application includes the following beneficial technical effects:
[0018] 1. The weight of the first counterweight box and the second counterweight box are adjusted according to the weight of the front end of the horizontal beam, so that the weight at both ends of the burner tends to be balanced. The setting of the wheels and universal wheels reduces the labor burden of the staff, reduces the difficulty of the staff to operate the burner, and facilitates the staff to control the balance of the front and rear ends of the burner. It is also easier to keep the carbon rod of the burner stable when it contacts the furnace eye;
[0019] 2. The setting of the chain can not only provide the carbon rod end of the burner with 10 degrees of upward and downward movement space, but also limit the excessive swing amplitude of the carbon rod end of the burner, which may cause the burner to tilt and the carbon rod to be damaged. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a side view of the overall structure of a burn-through device for an electric arc furnace that is easy to operate in an embodiment of the present application.
[0021] Figure 2It is a top view of the overall structure of the burn-through device in the embodiment of the present application.
[0022] Figure 3 It is a front view of the overall structure of the burner in the embodiment of the present application (viewed from the carbon rod end toward the handle).
[0023] Figure 4 yes Figure 1 Enlarged view of point A in the middle.
[0024] Figure 5 yes Figure 1 Enlarged view of point B in the middle.
[0025] Explanation of the reference numerals in the accompanying drawings: 1. vertical bracket; 2. horizontal beam; 21. articulated frame; 22. clamp; 3. carbon rod; 31. conductive copper busbar; 4. transition beam; 41. insulating plate; 411. first fixed plate; 412. second fixed plate; 42. mounting plate; 5. operating beam; 51. handle; 6. frame; 61. wheel; 62. universal wheel; 7. first counterweight box; 71. connecting rod; 72. first lifting ring; 8. second counterweight box; 81. second lifting ring; 9. chain; 91. first safety buckle; 92. second safety buckle. DETAILED DESCRIPTION
[0026] The following is combined with Figure 1-5 This application is described in further detail.
[0027] The embodiment of the present application discloses a burn-through device for an electric arc furnace that is easy to operate.
[0028] Reference Figure 1-5 The easy-to-operate burner for a submerged arc furnace comprises a vertical support 1 and a horizontal beam 2. The horizontal beam 2 is hinged to the top of the vertical support 1 near the middle through a hinge frame 21. The front end of the horizontal beam 2 is clamped with a carbon rod 3 through a clamp 22. A conductive copper bar 31 connected to the carbon rod 3 is arranged on the horizontal beam 2. The end of the conductive copper bar 31 in contact with the carbon rod 3 is also clamped in the clamp 22. The conductive copper bar 31 can be energized and conduct electrical energy to the carbon rod 3.
[0029] An operating beam 5 is provided at the rear end of the horizontal beam 2, and a transition beam 4 is provided between the horizontal beam 2 and the operating beam 5. The two ends of the transition beam 4 are respectively connected to the horizontal beam 2 and the operating beam 5 through insulating plates 41. A first fixing plate 411 is welded to each of the two ends of the transition beam 4, and a second fixing plate 412 is welded to each of the ends of the horizontal beam 2 close to the transition beam 4 and the end of the operating beam 5 close to the transition beam 4. The insulating plate 41 is sandwiched between two adjacent first fixing plates 411 and second fixing plates 412. The first fixing plate 411, the insulating plate 41, and the second fixing plate 412 are tightly connected and fixed by bolts, and the transition beam 4 and the operating beam 5 are both insulated to prevent workers from electric shock.
[0030] The bottom end of the vertical support 1 is connected to a frame 6, and a wheel 61 is rotatably connected to each of the two sides of the frame 6 in the width direction. A universal wheel 62 is connected to each of the two sides of the frame 6 in the width direction. When the outer peripheral wall of the universal wheel 62 and the outer peripheral wall of the wheel 61 are in contact with the working surface at the same time, the horizontal beam 2 is in a horizontal state. The two wheels 61 form a first wheel group, and the two universal wheels 62 form a second wheel group. The first wheel group is located at one end of the frame 6 close to the carbon rod 3, and the second wheel group is located at one end of the frame 6 away from the carbon rod 3.
[0031] The bottom surface of the transition beam 4 is provided with a first counterweight box 7 and a second counterweight box 8. The first counterweight box 7 is detachably connected to the transition beam 4 through a connector. The second counterweight box 8 is located below the first counterweight box 7 and connected to the first counterweight box 7 through a chain 9. The bottom surface of the second counterweight box 8 abuts against the top surface of the frame 6 to prevent the end of the carbon rod 3 of the burn-through device from tilting. The weight of the second counterweight box 8 is less than that of the first counterweight box 7. In this embodiment, the weight of the first counterweight box 7 is selected to be 180 kg, and the weight of the second counterweight box 8 is selected to be 100 kg.
[0032] The weight of the first counterweight box 7 and the second counterweight box 8 are adjusted according to the weight of the front end of the horizontal beam 2 so that the weight at both ends of the burner tends to be balanced. The arrangement of the wheels 61 and the universal wheels 62 reduces the labor burden of the staff and the difficulty of operating the burner, making it easier for the staff to control the balance of the front and rear ends of the burner, and it is also easier to maintain stability when the carbon rod 3 of the burner contacts the furnace eye.
[0033] When the horizontal beam 2 is in a horizontal state, the chain 9 is in a relaxed state. When one end of the horizontal beam 2 provided with the carbon rod 3 is rotated downward to 10°, the chain 9 is in a tensioned state, so that the carbon rod 3 end of the burner can be flexibly tilted up or down 10° to adjust the position of the carbon rod 3 so that the carbon rod 3 can contact the furnace eye more accurately. At the same time, the setting of the chain 9 also limits the swing amplitude of the carbon rod 3 end of the burner, which may cause the burner to tilt and the carbon rod 3 to be damaged.
[0034] The bottom surface of the transition beam 4 is connected with a mounting plate 42, and the connecting piece is a connecting rod 71. The bottom end of the connecting rod 71 is fixed to the first counterweight box 7, and the top end of the connecting rod 71 is detachably connected to the mounting plate 42 by bolts. The bottom end of the first counterweight box 7 is provided with a first lifting ring 72, and the top end of the second counterweight box 8 is provided with a second lifting ring 81. The two ends of the chain 9 are respectively provided with a first safety buckle 91 and a second safety buckle 92. The first safety buckle 91 is used in conjunction with the first lifting ring 72 and is buckled on the first lifting ring 72, and the second safety buckle 92 is used in conjunction with the second lifting ring 81 and is buckled on the second lifting ring 81. The replacement of the first counterweight box 7 and the second counterweight box 8 of different weights is realized. The first safety buckle 91 and the second safety buckle 92 in this embodiment are both spring buckle type safety buckles commonly used in the prior art, so they are not described in detail.
[0035] A handle 51 is provided at one end of the operating beam 5 away from the transition beam 4. The handle 51 is triangular in shape, one corner of the handle 51 is fixedly connected to the operating beam 5, and the other two corners of the handle 51 are arranged horizontally. It is more convenient for the staff to apply force by holding the two corners of the handle 51 with both hands. The side of the handle 51 away from the operating beam 5 is tilted downward, which further facilitates the staff to apply force.
[0036] The implementation principle of the easy-to-operate burn-through device for an electric arc furnace in the embodiment of the present application is as follows:
[0037] The weight of the first counterweight box 7 and the second counterweight box 8 are adjusted according to the weight of the front end of the horizontal beam 2 so that the weight at both ends of the burner tends to be balanced. Then the staff holds the handle 51 to push the burner forward and swings it up and down to adjust the position of the carbon rod 3 until the carbon rod 3 contacts the furnace eye.
[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A burn-through device for a submerged arc furnace that is easy to operate, characterized in that: The invention comprises a vertical support (1) and a horizontal beam (2), wherein the horizontal beam (2) is hinged to the top end of the vertical support (1) through an articulated frame (21) near the middle thereof, a carbon rod (3) is arranged at the front end of the horizontal beam (2), and a conductive copper bar (31) connected to the carbon rod (3) is arranged on the horizontal beam (2); an operating beam (5) is arranged at the rear end of the horizontal beam (2), a transition beam (4) is arranged between the horizontal beam (2) and the operating beam (5), and the two ends of the transition beam (4) are respectively connected to the horizontal beam (2) and the operating beam (5) through insulating plates (41); The bottom end of the vertical support (1) is connected to a vehicle frame (6), and both sides of the vehicle frame (6) in the width direction are rotatably connected to a wheel (61); The bottom surface of the transition beam (4) is provided with a first counterweight box (7) and a second counterweight box (8); the first counterweight box (7) is detachably connected to the transition beam (4) via a connecting piece; the second counterweight box (8) is located below the first counterweight box (7) and is connected to the first counterweight box (7) via a chain (9); the bottom surface of the second counterweight box (8) abuts against the top surface of the frame (6).
2. The easy-to-operate burn-through device for a submerged arc furnace according to claim 1, characterized in that: When the horizontal beam (2) is in a horizontal state, the chain (9) is in a relaxed state, and when one end of the horizontal beam (2) provided with the carbon rod (3) is rotated downward to 10°, the chain (9) is in a tensioned state.
3. The easy-to-operate burn-through device for a submerged arc furnace according to claim 1, characterized in that: A mounting plate (42) is connected to the bottom surface of the transition beam (4), the connecting member is a connecting rod (71), the bottom end of the connecting rod (71) is fixed to the first counterweight box (7), and the top end of the connecting rod (71) is connected to the mounting plate (42) via bolts.
4. The easy-to-operate burn-through device for a submerged arc furnace according to claim 1, characterized in that: The bottom end of the first counterweight box (7) is provided with a first lifting ring (72), the top end of the second counterweight box (8) is provided with a second lifting ring (81), and the two ends of the chain (9) are respectively provided with a first safety buckle (91) and a second safety buckle (92), the first safety buckle (91) is used in conjunction with the first lifting ring (72) and is buckled on the first lifting ring (72), and the second safety buckle (92) is used in conjunction with the second lifting ring (81) and is buckled on the second lifting ring (81).
5. The easy-to-operate burn-through device for a submerged arc furnace according to claim 1, characterized in that: The weight of the second counterweight box (8) is less than the weight of the first counterweight box (7).
6. The easy-to-operate burn-through device for a submerged arc furnace according to claim 1, characterized in that: A universal wheel (62) is connected to each of the two sides of the vehicle frame (6) in the width direction. When the outer peripheral wall of the universal wheel (62) and the outer peripheral wall of the wheel (61) are in contact with the working surface at the same time, the horizontal beam (2) is in a horizontal state.
7. The easy-to-operate burn-through device for a submerged arc furnace according to claim 6, characterized in that: The two wheels (61) form a first wheel group, and the two universal wheels (62) form a second wheel group. The first wheel group is located at one end of the frame (6) close to the carbon rod (3), and the second wheel group is located at one end of the frame (6) away from the carbon rod (3).
8. The easy-to-operate burn-through device for a submerged arc furnace according to claim 1, characterized in that: A handle (51) is provided at one end of the operating beam (5) away from the transition beam (4); the handle (51) is triangular in shape, one corner of the handle (51) is fixedly connected to the operating beam (5), and the other two corners of the handle (51) are arranged horizontally.
9. The easy-to-operate burn-through device for a submerged arc furnace according to claim 8, characterized in that: The handle (51) is arranged to be tilted downward on a side away from the operating beam (5).