Blast furnace tuyere sleeve dismounting tool

Abstract

The utility model belongs to the technical field of blast-furnace tuyeres, and discloses a blast-furnace tuyere sleeve dismantling tool. Comprising a supporting frame and a pull rod supported by the supporting frame, the pull rod can slide back and forth relative to the supporting frame, the hook head is arranged at the front end of the pull rod, the strike bearing block is fixed to the pull rod, and the impact hammer is arranged on the pull rod in a sliding mode and located between the strike bearing block and the hook head. The device further comprises a driving assembly, a stirring piece and an elastic piece, the driving assembly is connected with the stirring piece so as to drive the stirring piece to move circularly along the annular track, and the stirring piece which circulates by one circle can drive the impact hammer to slide towards the hook head from the first position and returns to the first position from the second position after being separated from the impact hammer at the second position. The first position and the second position are both located between the hook head and the strike bearing block, the first position is closer to the strike bearing block than the second position, the elastic piece is connected with the impact hammer, and the impact hammer can slide towards the strike bearing block from the second position under the action of the elastic piece and strike the strike bearing block.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace tuyere, in particular to a blast furnace tuyere sleeve removal tool. Background Art

[0002] The hot blast coming out of the hot blast stove is sent into the blast furnace after passing through the hot blast main pipe, hot blast surrounding pipe and blast furnace tuyere device. The blast furnace tuyere device is generally composed of a gooseneck pipe, a bent pipe, a straight blowing pipe and a tuyere sleeve.

[0003] Due to the bad working environment of the tuyere, it not only bears the high temperature heat load, but also has to withstand iron erosion of about 1500℃. Especially when the furnace condition is not smooth and the material overhang and collapse occur frequently, the tuyere is very easy to be damaged. The damaged parts are mostly the lower edge, upper edge or side of the front end, so it is necessary to stop the wind and replace the tuyere sleeve. In addition, due to human factors (improper operation of the blast furnace to stop the wind filling tuyere) or natural disasters (lightning strike, cable short circuit) affecting the tuyere, it is also necessary to stop the wind and replace the tuyere sleeve.

[0004] For this reason, a blast furnace tuyere sleeve removal tool is badly needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a blast furnace tuyere sleeve removal tool, which is convenient for removing the blast furnace tuyere sleeve, has a simple structure and saves manpower.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Blast furnace tuyere sleeve removal tools, including:

[0008] Support frame;

[0009] A pull rod supported by the support frame, the pull rod being able to slide forward and backward relative to the support frame;

[0010] A hook head arranged at the front end of the pull rod and a strike block fixed on the pull rod;

[0011] An impact hammer is slidably arranged on the pull rod, and the impact hammer is located between the impact block and the hook head;

[0012] A driving component, a toggle member and an elastic member, wherein the driving component is connected to the toggle member to drive the toggle member to move cyclically along a circular trajectory. The toggle member, which has completed one cycle, can drive the impact hammer to slide toward the hook head from the first position, and return to the first position from the second position after being separated from the impact hammer at the second position. Both the first position and the second position are located between the hook head and the striking block. The first position is closer to the striking block than the second position. The elastic member is connected to the impact hammer, and the impact hammer can slide from the second position to the striking block and hit the striking block under the action of the elastic member.

[0013] Optionally, the annular track is set on the support frame and is located on one side of the pull rod in the radial direction. The annular track is in the shape of an elongated ring. The length direction of the annular track extends in the front-to-back direction. The toggle member moves from the first position to the second position along the track on one side of the annular track close to the pull rod to drive the impact hammer to slide toward the hook head. The toggle member moves from the second position to the first position along the track on the side of the annular track away from the pull rod to reset when it is separated from the impact hammer.

[0014] Optionally, the driving assembly includes an annular belt forming an annular track and a driving member connected to the annular belt transmission, the toggle member is placed on the annular belt, and the driving member is used to drive the annular belt to circulate to drive the toggle member to circulate between the first position and the second position.

[0015] Optionally, the driving assembly further includes a driving wheel and a driven wheel, the annular belt is arranged on the driving wheel and the driven wheel, the driving wheel and the driven wheel are both arranged on a support frame, and the driving member is connected to the driving wheel and is used to drive the driving wheel to rotate.

[0016] Optionally, the impact hammer includes a hammer body slidably mounted on a pull rod and a flange protruding toward the outer periphery of the hammer body. The elastic member is located at the outer periphery of the hammer body, one end of the elastic member is connected to the striking block, and the other end is connected to the flange.

[0017] Optionally, from the first position to the second position, the toggle member abuts against the rear side of the flange portion to push the impact hammer to move toward the hook head.

[0018] Optionally, a plurality of elastic members are evenly arranged along the circumference of the hammer body.

[0019] Optionally, the support frame includes a horizontal frame, a first vertical frame and a second vertical frame, the first vertical frame and the second vertical frame are arranged on the horizontal frame with a front and rear interval, the pull rod is slidably passed through the first vertical frame and the second vertical frame, the hook head is located on the side of the first vertical frame away from the second vertical frame, the impact block is located between the first vertical frame and the second vertical frame, and the pull rod is provided with a stopper, which can be pressed against the rear side of the first vertical frame.

[0020] Optionally, a first groove opening upward is provided on the first stand, and a second groove opening upward is provided on the second stand, and the pull rod is slidably arranged in the first groove and the second groove.

[0021] Optionally, the second stand can be raised and lowered to adjust the pitch angle of the pull rod.

[0022] Beneficial effects:

[0023] The utility model provides a blast furnace tuyere sleeve removal tool, which utilizes a driving component to drive a toggle block to move cyclically along an annular track, the toggle block moves from a first position to a second position, and drives an impact hammer to slide toward a hook head, the elastic member accumulates elastic potential energy until the toggle block reaches the second position, the toggle block is separated from the impact hammer, and resets from the second position to the first position, and at the same time the impact hammer slides and hits the receiving block under the elastic force of the elastic member, as the toggle block moves cyclically on the annular track, the impact hammer repeatedly hits the receiving block, thereby facilitating the removal of the tuyere sleeve, and the blast furnace tuyere sleeve removal tool saves manpower and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of a blast furnace tuyere sleeve removal tool provided by an embodiment of the utility model;

[0025] Figure 2 It is a top view of a blast furnace tuyere sleeve removal tool provided by an embodiment of the utility model.

[0026] In the figure:

[0027] 1. Support frame; 11. Horizontal frame; 12. First vertical frame; 13. Second vertical frame; 14. Traveling wheel;

[0028] 2. Pull rod; 21. Hook; 22. Strike block; 23. Stopper;

[0029] 3. impact hammer; 31. hammer body; 32. flange portion;

[0030] 4. driving assembly; 41. endless belt; 42. driving wheel; 43. driven wheel;

[0031] 5. Toggle piece;

[0032] 6. Elastic parts. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides a blast furnace tuyere sleeve removal tool for assisting in the removal of the tuyere sleeve of the blast furnace. The blast furnace tuyere sleeve removal tool comprises a support frame 1 and a pull rod 2 supported by the support frame 1, and a hook head 21 for hooking on the tuyere sleeve is provided at the front end of the pull rod 2. Exemplarily, the hook head 21 is a convex block perpendicular to the pull rod 2. The pull rod 2 can slide forward and backward relative to the support frame 1 to pull out the tuyere sleeve hooked by the hook head 21.

[0038] In this embodiment, a strike block 22 is also fixed on the pull rod 2, and the impact hammer 3 is slidably arranged on the pull rod 2 and is located between the strike block 22 and the hook head 21. That is, the strike block 22 is behind the hook head 21, and the impact hammer 3 slides from front to back and hits the strike block 22, thereby providing a large impact pulling force for the pull rod 2, and the air inlet sleeve is removed smoothly.

[0039] like Figure 1As shown, in this embodiment, the blast furnace tuyere sleeve removal tool also includes a driving component 4, a toggle member 5 and an elastic member 6. The driving component 4 is connected to the toggle member 5 to drive the toggle member 5 to move cyclically along the annular track. The toggle member 5 that has circulated once can drive the impact hammer 3 to slide toward the hook head 21 from the first position, and return to the first position from the second position after being separated from the impact hammer 3 at the second position. The first position and the second position are both located between the hook head 21 and the impact block 22. The first position is closer to the impact block 22 than the second position. The elastic member 6 is connected to the impact hammer 3. The impact hammer 3 can slide toward the impact block 22 and hit the impact block 22 under the action of the elastic member 6. In other words, the driving component 4 and the toggle member 5 are used to enable the impact hammer 3 to move smoothly toward the hook head 21, and the elastic potential energy of the elastic member 6 is used to violently hit the impact hammer 3 on the impact block 22.

[0040] The blast furnace tuyere sleeve removal tool provided in this embodiment utilizes the driving component 4 to drive the toggle block to move cyclically along the annular trajectory. The toggle block moves from the first position to the second position and drives the impact hammer 3 to slide toward the hook head 21. The elastic member 6 accumulates elastic potential energy until the toggle block reaches the second position. The toggle block is separated from the impact hammer 3 and resets from the second position to the first position. At the same time, the impact hammer 3 slides and hits the receiving block 22 under the elastic force of the elastic member 6. As the toggle block moves cyclically on the annular trajectory, the impact hammer 3 repeatedly hits the receiving block 22, thereby facilitating the removal of the tuyere sleeve.

[0041] Optionally, the annular track is arranged on the support frame 1 and is located on one side of the radial direction of the pull rod 2. The annular track is in the shape of an elongated ring, and the length direction of the annular track extends in the front-to-back direction. The toggle member 5 moves from the first position to the second position along the track on one side of the annular track close to the pull rod 2 to drive the impact hammer 3 to slide toward the hook 21, and the toggle member 5 moves from the second position to the first position along the track on the side of the annular track away from the pull rod 2 to reset when it is separated from the impact hammer 3. By arranging the annular track on the side of the pull rod 2 and making the toggle member 5 move along the annular track, the unidirectional intermittent and cyclic driving of the impact hammer 3 is realized. Moreover, in the process of the impact hammer 3 hitting the impact block 22, the toggle member 5 is located on the lower side of the annular track, which further avoids interference and is safer and more reliable.

[0042] In this embodiment, the driving assembly 4 includes an annular belt 41 forming an annular track and a driving member connected to the annular belt 41. The toggle member 5 is placed on the annular belt 41. The driving member is used to drive the annular belt 41 to circulate, so as to drive the toggle member 5 to circulate between the first position and the second position. The toggle member 5 is driven to move along the annular track by the annular belt 41, which has a simple structure and low cost.

[0043] like Figure 1As shown, further, the driving assembly 4 also includes a driving wheel 42 and a driven wheel 43, the annular belt 41 is arranged on the driving wheel 42 and the driven wheel 43, the driving wheel 42 and the driven wheel 43 are both arranged on the support frame 1, and the driving member is connected to the driving wheel 42 and is used to drive the driving wheel 42 to rotate. Specifically, the driving member can be a servo motor.

[0044] Optionally, the impact hammer 3 includes a hammer body 31 slidably mounted on the pull rod 2 and a flange portion 32 protruding toward the periphery of the hammer body 31 , and the elastic member 6 is located at the periphery of the hammer body 31 , one end of the elastic member 6 is connected to the striking block 22 , and the other end is connected to the flange portion 32 .

[0045] Specifically, from the first position to the second position, the toggle member 5 abuts against the rear side of the flange portion 32 to push the impact hammer 3 to move toward the hook head 21 . At the second position, the toggle member 5 is separated from the flange portion 32 .

[0046] like Figure 1 As shown, optionally, multiple elastic members 6 are evenly arranged along the circumference of the hammer body 31. Multiple elastic members 6 are conducive to maintaining the posture balance of the impact hammer 3 and reducing the friction between the impact hammer 3 and the pull rod 2. The elastic member 6 can be a coil spring, an elastic rope, etc. In other embodiments, the elastic member 6 can also be an elastic sleeve, which is sleeved on the outer periphery of the hammer head, and the two ends are respectively connected to the flange portion 32 and the strike block 22.

[0047] like Figure 1 and Figure 2 As shown, optionally, the support frame 1 includes a horizontal frame 11, a first vertical frame 12 and a second vertical frame 13. The first vertical frame 12 and the second vertical frame 13 are vertically arranged on the horizontal frame 11 with a front-to-back interval, the pull rod 2 is slidably arranged on the first vertical frame 12 and the second vertical frame 13, the hook 21 is located on the side of the first vertical frame 12 away from the second vertical frame 13, the impact block 22 is located between the first vertical frame 12 and the second vertical frame 13, and a stopper 23 is provided on the pull rod 2, and the stopper 23 can be pressed against the rear side of the first vertical frame 12. By setting the stopper 23, the pull rod 2 can be limited from sliding forward, so as to prevent the impact hammer 3 from driving the impact block 22 through the elastic member 6 when the toggle member 5 pushes the impact hammer 3 away from the impact block 22, thereby driving the pull rod 2 to slide forward.

[0048] Optionally, the first stand 12 is provided with a first groove opening upward, the second stand 13 is provided with a second groove opening upward, and the pull rod 2 is slidably arranged in the first groove and the second groove. The pull rod 2 is easy to disassemble and assemble on the support frame 1, and it is convenient to replace different types of pull rods 2 and components on the pull rod 2.

[0049] Optionally, the second stand 13 can be raised and lowered to adjust the pitch angle of the pull rod 2, so as to adapt to the axial direction of the air outlet sleeve and facilitate the removal of the air outlet sleeve. The lifting of the second stand 13 can be achieved by using a telescopic rod or the like, which will not be described in detail here.

[0050] like Figure 1 As shown, optionally, a plurality of running wheels 14 are provided on the bed frame 11 for easy transportation.

[0051] The working principle of the blast furnace tuyere sleeve removal tool is as follows: the support frame 1 and the tie rod 2 thereon are adjusted, and the hook 21 on the tie rod 2 is inserted into the tuyere sleeve so that the hook 21 hooks the edge of the tuyere sleeve; the driving motor drives the annular belt 41 to rotate through the driving wheel 42, and the toggle member 5 moves with the annular belt 41. When the toggle member 5 moves from the first position to the second position on the upper side of the annular belt 41, the toggle member 5 presses against the flange portion 32 of the impact hammer 3, pushing the impact hammer 3 to slide toward the hook 21, and the impact hammer 3 drives the elastic member 6 to deform elastically; at the same time, the stopper 23 presses against the first support to limit the tie rod 2 and prevent it from sliding forward. After the toggle member 5 moves to the second position, it is separated from the flange portion 32 of the impact hammer 3. Under the action of the elastic member 6, the impact hammer 3 slides toward the impact block 22 and hits the impact block 22, thereby applying a pulling impact force to the air inlet sleeve; at the same time, the toggle member 5 is reset from the second position to the first position from the lower side of the annular belt 41, so as to prepare to cycle the above process again.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Blast furnace tuyere sleeve removal tool, characterized in that: include: Support frame (1); a pull rod (2) supported by the support frame (1), wherein the pull rod (2) is capable of sliding forward and backward relative to the support frame (1); A hook head (21) arranged at the front end of the pull rod (2) and a strike block (22) fixed on the pull rod (2); An impact hammer (3) is slidably arranged on the pull rod (2), and the impact hammer (3) is located between the impact block (22) and the hook head (21); A driving assembly (4), a toggle member (5) and an elastic member (6), wherein the driving assembly (4) is connected to the toggle member (5) to drive the toggle member (5) to move cyclically along a circular track, wherein the toggle member (5) after a cycle can drive the impact hammer (3) to slide toward the hook head (21) from a first position, and return from the second position to the first position after being separated from the impact hammer (3) at a second position, wherein the first position and the second position are both located between the hook head (21) and the impact block (22), wherein the first position is closer to the impact block (22) than the second position, and wherein the elastic member (6) is connected to the impact hammer (3), wherein the impact hammer (3) can slide toward the impact block (22) and strike the impact block (22) under the action of the elastic member (6).

2. The blast furnace tuyere sleeve removal tool according to claim 1, characterized in that: The annular track is arranged on the support frame (1) and is located on one radial side of the pull rod (2). The annular track is in the shape of an elongated ring. The length direction of the annular track extends in the front-to-back direction. The toggle member (5) moves from the first position to the second position along a track on one side of the annular track close to the pull rod (2) to drive the impact hammer (3) to slide toward the hook head (21). The toggle member (5) moves from the second position to the first position along a track on one side of the annular track away from the pull rod (2) to reset when it is separated from the impact hammer (3).

3. The blast furnace tuyere sleeve removal tool according to claim 2, characterized in that: The driving assembly (4) comprises an annular belt (41) forming the annular track and a driving member connected to the annular belt (41); the toggle member (5) is disposed on the annular belt (41); the driving member is used to drive the annular belt (41) to circulate, so as to drive the toggle member (5) to circulate between the first position and the second position.

4. The blast furnace tuyere sleeve removal tool according to claim 3, characterized in that: The driving assembly (4) further comprises a driving wheel (42) and a driven wheel (43), the annular belt (41) being arranged on the driving wheel (42) and the driven wheel (43), the driving wheel (42) and the driven wheel (43) being both arranged on the support frame (1), and the driving member being connected to the driving wheel (42) and being used for driving the driving wheel (42) to rotate.

5. The blast furnace tuyere sleeve removal tool according to any one of claims 1 to 4, characterized in that: The impact hammer (3) comprises a hammer body (31) slidably mounted on the pull rod (2) and a flange portion (32) protruding toward the periphery of the hammer body (31); the elastic member (6) is located on the periphery of the hammer body (31); one end of the elastic member (6) is connected to the impact block (22), and the other end is connected to the flange portion (32).

6. The blast furnace tuyere sleeve removal tool according to claim 5, characterized in that: From the first position to the second position, the toggle member (5) abuts against the rear side of the flange portion (32) to push the impact hammer (3) to move toward the hook head (21).

7. The blast furnace tuyere sleeve removal tool according to claim 5, characterized in that: A plurality of elastic members (6) are evenly arranged along the circumference of the hammer body (31).

8. The blast furnace tuyere sleeve removal tool according to claim 5, characterized in that: The support frame (1) comprises a horizontal frame (11), a first vertical frame (12) and a second vertical frame (13); the first vertical frame (12) and the second vertical frame (13) are vertically arranged on the horizontal frame (11) with a front-to-rear spacing; the pull rod (2) is slidably arranged on the first vertical frame (12) and the second vertical frame (13); the hook head (21) is located on the side of the first vertical frame (12) away from the second vertical frame (13); the impact block (22) is located between the first vertical frame (12) and the second vertical frame (13); a stopper (23) is provided on the pull rod (2); and the stopper (23) can be pressed against the rear side of the first vertical frame (12).

9. The blast furnace tuyere sleeve removal tool according to claim 8, characterized in that: The first stand (12) is provided with a first groove opening upward, the second stand (13) is provided with a second groove opening upward, and the pull rod (2) is slidably arranged in the first groove and the second groove.

10. The blast furnace tuyere sleeve removal tool according to claim 8, characterized in that: The second stand (13) can be raised and lowered to adjust the pitch angle of the pull rod (2).

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