Anti-lateral deviation guide device and adjustment method for rolling movement of large blast furnace
The guide device with guide mechanisms and reinforcement components addresses the issue of guide shoe sticking by ensuring seamless track contact, enabling efficient and controlled rolling and pushing of large blast furnaces.
Patent Information
- Application Number
- CN202010577251.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-06-23
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2040-06-23
AI Technical Summary
Existing methods for pushing large blast furnaces using guide shoes are prone to thrust imbalance, leading to guide shoes getting stuck with the rails, resulting in low efficiency and unsatisfactory pushing effects.
A lateral deviation prevention guide device with four sets of guide mechanisms, each comprising a guide shaft, top and bottom plates, and reinforcement components, ensuring seamless contact with the track to prevent lateral deviation and sticking during rolling and pushing.
The guide device ensures accurate and controllable rolling and pushing of large blast furnaces, reducing shutdown time and manufacturing costs while preventing guide shoe jamming, thus optimizing the construction process.
Smart Images
Figure CN111749493B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of metallurgical blast furnace maintenance, and in particular relates to a lateral deviation prevention guide device and an adjustment method for rolling and pushing a large blast furnace. Background Art
[0002] With the development of large-scale blast furnaces and the expiration of their service life, blast furnaces need to be technically transformed. Considering the economic benefits, the technical transformation of large blast furnaces generally adopts the method of building a new blast furnace offline (including cooling walls and refractory materials) and pushing it into place after the old blast furnace is dismantled.
[0003] Small and medium-sized blast furnaces are generally pushed by sliding because of their small size. For large blast furnaces, due to their large weight and volume, it is impossible to use a small-tonnage hydraulic thrust system for pushing, nor can it be pushed by the existing sliding method. A large traction force is required to pull and slide, but this effect is not good. The rolling method can be used to push large blast furnaces, and the existing rolling method mainly uses guide shoes to prevent lateral deviation, but this method has the following shortcomings:
[0004] When using guide shoes to push the blast furnace, due to the imbalance of thrust, the guide shoes are prone to get stuck with the rails; after the jamming occurs, it is difficult to adjust, resulting in low work efficiency and unsatisfactory pushing effect. Summary of the invention
[0005] The invention provides a lateral deviation prevention guide device and an adjustment method for rolling and pushing of a large blast furnace, which solves the technical problem in the prior art that the guide sliding shoe is prone to get stuck with the rail due to the imbalance of thrust.
[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:
[0007] A lateral deviation prevention guide device for rolling and pushing of a large blast furnace comprises four sets of guide mechanisms disposed on the outer side of a track and arranged perpendicularly to the track, the guide mechanisms being symmetrically arranged along the width direction of the track and respectively disposed at both ends of the diameter of a furnace bottom plate close to the inner side of the blast furnace, and the guide mechanisms being fixed on the furnace bottom plate; the guide mechanism comprises a guide shaft, a guide top plate and a guide bottom plate penetrated by the guide shaft, the guide top plate and the guide bottom plate being arranged side by side with a gap; the guide top plate is arranged close to one side of the furnace bottom plate; a guide wheel is provided at one end of the guide shaft away from the guide top plate, the guide wheel being in seamless contact with the outer wall of the track; the guide wheel is in contact with the outer wall of the track and clamps the track to push the load-bearing main beam of the blast furnace to slide on the track, so as to prevent the load-bearing main beam from laterally deviating from the track and getting stuck with the fixed sliding shoe arranged on the track during rolling and pushing.
[0008] Furthermore, the guide shaft is coaxially arranged with the guide top plate and the guide bottom plate, and the guide shaft is perpendicular to the furnace bottom plate.
[0009] Furthermore, the diameter of the guide top plate is greater than the diameter of the guide bottom plate.
[0010] Furthermore, a reinforcement component is provided between the guide top plate and the guide bottom plate, and the number of the reinforcement components is at least two groups.
[0011] Furthermore, the reinforcement components are evenly arranged along the outer diameter surface of the guide shaft and are respectively connected to the guide top plate and the guide bottom plate.
[0012] Furthermore, the reinforcement component includes a plurality of groups of reinforcing ribs 1 and 2, and the reinforcing ribs 1 and 2 are vertically arranged along the height direction of the guide shaft.
[0013] Furthermore, the surfaces of the reinforcing rib 1 and the reinforcing rib 2 close to the guide shaft are cross-connected and fixedly connected to the outer wall of the guide shaft.
[0014] Furthermore, the guide mechanism also includes a clamping plate assembly for clamping the guide shaft, and the clamping plate assembly is placed on both sides of the guide base plate.
[0015] Furthermore, the card plate assembly includes card plate 1 and card plate 2, wherein card plate 1 is placed on the side of the guide bottom plate close to the guide top plate; and card plate 2 is placed between the guide bottom plate and the guide wheel.
[0016] A method for adjusting the anti-lateral deviation of a large blast furnace for rolling and pushing, using a guide device as described in any one of the above, comprises the following steps:
[0017] S1: Determine the placement position of the guide mechanism according to the width of the track, make the guide shaft perpendicular to the track, and make the guide wheel contact the outer wall of the track without gap;
[0018] S2: drilling mounting holes in the guide top plate and the furnace bottom plate of the guide mechanism according to the placement position of the guide mechanism, and connecting the guide top plate and the furnace bottom plate by bolts so that the guide mechanism is fixed on the blast furnace;
[0019] S3: The blast furnace rolls along the track under hydraulic pushing, and the guide wheel contacts the outer wall of the track and clamps the track to push the load-bearing main beam of the blast furnace to slide on the track, so as to prevent the load-bearing main beam from laterally deviating from the track during the rolling process and getting stuck with the fixed sliding shoe set on the track.
[0020] Compared with the prior art, the guide device and adjustment method designed in the present invention are mainly used to push the newly built blast furnace in advance, without affecting the normal production of the old blast furnace, and the furnace will be stopped and dismantled after the construction of the old blast furnace body and the newly built slideway is completed. After the dismantling is completed, the newly built blast furnace is pushed into place as a whole, and the connection of the peripheral pipelines and the restoration of the dismantled parts are restored, which greatly reduces the shutdown time and is more optimized than the traditional construction plan. In the process of pushing the blast furnace, the horizontal guide device is used for rolling lateral pushing to solve the problem of the guide shoe and the rail getting stuck. The guide device designed in the present invention is not only simple in structure and easy to install, but also has a low manufacturing cost, and is safe and can control the lateral deviation problem in the rolling pushing process of the large blast furnace, ensuring that the rolling pushing of the large blast furnace is accurate and controllable. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a plane coordination diagram of a blast furnace rolling movement according to an embodiment of the present invention;
[0022] Figure 2 It is a schematic diagram of the cooperation between the anti-lateral inertia guide device and the guide rail according to one embodiment of the present invention;
[0023] Figure 3 It is a schematic structural diagram of an anti-lateral inertia guiding device according to an embodiment of the present invention.
[0024] In the figure:
[0025] 100, guide mechanism 110, guide shaft 120, guide top plate
[0026] 130, guide base plate 140, guide wheel 150, reinforcement component
[0027] 151. Reinforcement rib 1 152. Reinforcement rib 2 160. Pallet assembly
[0028] 161, pallet one 162, pallet two 200, blast furnace
[0029] 210, furnace bottom plate 220, weighing main beam 230, fixed sliding shoe
[0030] 240, furnace reinforcement 250, small tank for moving objects 300, track DETAILED DESCRIPTION
[0031] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0032] This embodiment proposes a lateral deviation prevention guide device for rolling and pushing a large blast furnace, such as Figure 1 and Figure 2As shown, it includes four sets of guide mechanisms 100 placed outside the track 300 and arranged perpendicularly to the track 300. The guide mechanisms 100 are arranged symmetrically along the width direction of the track 300 and are respectively placed at both ends of the diameter of the furnace bottom plate 210 close to the inner side of the blast furnace 200. A number of vertically arranged furnace reinforcement ribs 240 are arranged on the furnace bottom plate 210. A number of symmetrically arranged mobile tanks 250 are arranged on the inner side wall of the furnace shell of the blast furnace 200 close to the furnace bottom plate 210. All mobile tanks 250 are arranged at the ends of the furnace reinforcement ribs 240. A number of uniformly arranged fixed sliding shoes 230 are arranged on the furnace reinforcement ribs 240. In this embodiment, there are two tracks 300, and the guide mechanisms 100 are placed on both sides of the width direction of the two tracks 300. The axis of the guide mechanisms 100 is perpendicular to the length of the track 300. The guide mechanisms 100 are respectively installed on the furnace bottom plate 210 and placed on the inner side of the blast furnace 200. Specifically, the guide mechanism 100 includes a guide shaft 110, a guide top plate 120 and a guide bottom plate 130 which are penetrated by the guide shaft 110, and the guide top plate 120 and the guide bottom plate 130 are arranged side by side with a gap. The guide top plate 120 is arranged near the furnace bottom plate 210, and the guide bottom plate 130 is arranged away from the furnace bottom plate 210. A guide wheel 140 is arranged at the end of the guide shaft 110 away from the guide top plate 120, and the guide wheel 140 is in seamless contact with the outer wall of the track 300. The guide wheels 140 arranged on both sides of the track 300 contact with the outer side wall of the track 300 and clamp the track 300 to push the load-bearing main beam 220 of the blast furnace 200 to slide on the track 300, so as to prevent the load-bearing main beam 220 from laterally deviating from the track 300 during the rolling process and getting stuck with the fixed sliding shoe 230 arranged on the track 300.
[0033] like Figure 3 The guide shaft 110 is coaxially arranged with the guide top plate 120 and the guide bottom plate 130 , and the guide shaft 110 is perpendicular to the furnace bottom plate 210 and the guide rail 300 , and the diameter of the guide top plate 120 is greater than the diameter of the guide bottom plate 130 .
[0034] Furthermore, a reinforcement assembly 150 is provided between the guide top plate 120 and the guide bottom plate 130 . The number of the reinforcement assembly 150 is at least two groups, which are evenly arranged along the outer diameter surface of the guide shaft 110 and fixedly connected to the guide top plate 120 and the guide bottom plate 130 , respectively.
[0035] Furthermore, the reinforcement assembly 150 includes a plurality of groups of reinforcing ribs 151 and 152, which are vertically arranged along the height direction of the guide shaft 110. The surfaces of the reinforcing ribs 151 and 152 close to one side of the guide shaft 110 are cross-connected and fixedly connected to the outer wall of the guide shaft 110.
[0036] Furthermore, the guide mechanism 100 further includes a clamping plate assembly 160 for clamping the guide shaft 110, and the clamping plate assembly 160 is placed on both sides of the guide bottom plate 130. The clamping plate assembly 160 is arranged in parallel with the guide bottom plate 130, and includes a clamping plate 1 161 and a clamping plate 2 162, wherein the clamping plate 1 161 is placed on one side of the guide bottom plate 130 close to the guide top plate 120; and the clamping plate 2 162 is placed between the guide bottom plate 130 and the guide wheel 140.
[0037] The adjustment method for preventing lateral deviation of a large blast furnace for rolling and pushing adopts the guide device as described above, and the steps include:
[0038] S1: Determine the placement position of the guide mechanism 100 according to the width of the track 300 and make the guide shaft 110 perpendicular to the track 300, and the guide wheel 140 is in seamless contact with the outer wall of the track 300.
[0039] S2: According to the placement position of the guide mechanism 100, installation holes are drilled in the guide top plate 120 and the furnace bottom plate 210 in the guide mechanism 100, and the guide top plate 120 and the furnace bottom plate 210 are connected by bolts to fix the guide mechanism 100 on the blast furnace 200.
[0040] S3: The blast furnace 200 rolls along the track 300 under hydraulic pushing, and the guide wheel 140 contacts the outer wall of the track 300 and clamps the track 300 to push the load-bearing main beam 220 of the blast furnace 200 to slide on the track 300, so as to prevent the load-bearing main beam 220 from laterally deviating from the track 300 during the rolling process and getting stuck with the fixed sliding shoe 230 set on the track 300.
[0041] Compared with the prior art, the guide device and adjustment method designed in the present invention are mainly used to push the newly built blast furnace in advance, without affecting the normal production of the old blast furnace, and the furnace will be stopped and dismantled after the construction of the old blast furnace body and the newly built slideway is completed. After the dismantling is completed, the newly built blast furnace is pushed into place as a whole, and the connection of the peripheral pipelines and the restoration of the dismantled parts are restored, which greatly reduces the shutdown time and is more optimized than the traditional construction plan. In the process of blast furnace pushing, the horizontal guide device is used for rolling lateral pushing to solve the problem of the guide shoe and the rail getting stuck. The horizontal guide device designed in the present invention is not only simple in structure and easy to install, but also has a low manufacturing cost, and is safe and can control the lateral deviation problem in the rolling pushing process of large blast furnaces, ensuring that the rolling pushing of large blast furnaces is accurate and controllable.
[0042] The above embodiments of the present invention are described in detail, and the contents are only preferred embodiments of the present invention, and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.
Claims
1. A lateral deviation prevention guide device for rolling movement of a large blast furnace, characterized in that: The invention comprises four sets of guide mechanisms which are arranged outside the track and perpendicular to the track, the guide mechanisms are symmetrically arranged along the width direction of the track and respectively arranged at two ends of the diameter of the furnace bottom plate close to the inner side of the blast furnace, and the guide mechanisms are fixed to the furnace bottom plate; the guide mechanism comprises a guide shaft, a guide top plate and a guide bottom plate which are penetrated by the guide shaft, and the guide top plate and the guide bottom plate are arranged side by side with a gap; the guide top plate is arranged close to one side of the furnace bottom plate; a guide wheel is arranged at one end of the guide shaft away from the guide top plate, and the guide wheel is in seamless contact with the outer wall of the track; the guide wheel is in contact with the outer wall of the track and clamps the track to push the load-bearing main beam of the blast furnace to slide on the track, so as to prevent the load-bearing main beam from laterally deviating from the track during rolling and pushing, and getting stuck with the fixed sliding shoe arranged on the track; The guide shaft is coaxially arranged with the guide top plate and the guide bottom plate, and the guide shaft is perpendicular to the furnace bottom plate; The diameter of the guide top plate is greater than the diameter of the guide bottom plate; A reinforcement component is provided between the guide top plate and the guide bottom plate, and the number of the reinforcement components is at least two groups.
2. The lateral deviation preventing guide device for rolling movement of a large blast furnace according to claim 1 is characterized in that: The reinforcement components are evenly arranged along the outer diameter surface of the guide shaft and are respectively connected to the guide top plate and the guide bottom plate.
3. The lateral deviation preventing guide device for rolling movement of a large blast furnace according to claim 2 is characterized in that: The reinforcement assembly includes a plurality of groups of reinforcing ribs 1 and 2, and the reinforcing ribs 1 and 2 are vertically arranged along the height direction of the guide shaft.
4. The lateral deviation preventing guide device for rolling movement of a large blast furnace according to claim 3 is characterized in that: The surfaces of the reinforcing rib 1 and the reinforcing rib 2 close to the guide shaft are cross-connected and fixedly connected to the outer wall of the guide shaft.
5. The anti-lateral deviation guide device for rolling movement of a large blast furnace according to any one of claims 1 to 4, characterized in that: The guide mechanism also includes a clamping plate assembly for clamping the guide shaft, and the clamping plate assembly is placed on both sides of the guide base plate.
6. The lateral deviation preventing guide device for rolling movement of a large blast furnace according to claim 5 is characterized in that: The card plate assembly includes card plate 1 and card plate 2, wherein card plate 1 is placed on the side of the guide bottom plate close to the guide top plate; and card plate 2 is placed between the guide bottom plate and the guide wheel.
7. A method for adjusting the lateral deviation of a large blast furnace for rolling movement, characterized in that: Using the guiding device according to any one of claims 1 to 6, the steps include: S1: Determine the placement position of the guide mechanism according to the width of the track, make the guide shaft perpendicular to the track, and make the guide wheel contact the outer wall of the track without gap; S2: drilling mounting holes in the guide top plate and the furnace bottom plate of the guide mechanism according to the placement position of the guide mechanism, and connecting the guide top plate and the furnace bottom plate by bolts so that the guide mechanism is fixed on the blast furnace; S3: The blast furnace rolls along the track under hydraulic pushing, and the guide wheel contacts the outer wall of the track and clamps the track to push the load-bearing main beam of the blast furnace to slide on the track, so as to prevent the load-bearing main beam from laterally deviating from the track during the rolling process and getting stuck with the fixed sliding shoe set on the track.