Hoisting device for bottom filter system cells of blast furnace water slag tank
By using a frame body and hydraulic jacks as hoisting devices in the bottom filter system of the blast furnace slag pool, the problem of hoisting difficulties caused by cell caking was solved, and efficient and predictable cell separation hoisting was achieved, thus improving work efficiency.
Patent Information
- Application Number
- CN202423232490.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In the bottom filter system of blast furnace slag pool, the cells become hardened due to long-term erosion, making hoisting difficult. The existing cranes have insufficient tonnage, making it difficult to predict the lifting weight, resulting in low work efficiency. Moreover, the blast furnace production intervals are limited, often making it impossible to complete the hoisting task in time.
Design a hoisting device that includes a crane, a frame body, a lower lifting point, and hydraulic jacks. The lower lifting point is connected to the cell hook, and the jacks apply thrust around the cell to break up the slab and achieve the separation and hoisting of the cell.
It enables efficient separation and hoisting of individual units, reduces lifting weight, simplifies operation, improves work efficiency, and is suitable for use with conventional cranes.
Smart Images
Figure CN223606892U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hoist field, concretely, relate to a hoist device for high furnace water slag pool bottom filter system unit cell. BACKGROUND
[0002] In the use process of high furnace water slag pool bottom filter system, need every other half year to the filter material of slag pool is replaced, need first to hoist the unit cell of high furnace water slag pool bottom when replacing filter material.
[0003] In the production process, the adjacent unit cell gap is filled with water slag due to the long-term erosion of water slag, and the gap between the adjacent unit cells is gradually filled with slag and hardened. The adjacent unit cells on the pool bottom are hardened to form a whole. When hoisting the unit cell, the unit cells on the pool bottom are hardened to form a whole, so the actual lifting weight is much larger than the lifting weight of a single unit cell. This results in a very large tonnage of the lifting crane, and the crane used in daily production cannot meet the hoisting requirements, so a new crane needs to be selected. Moreover, the lifting weight is related to the specific situation of hardening, so it is difficult to predict the lifting weight during hoisting before hoisting. Therefore, unexpected difficulties often occur during hoisting, and the hardened unit cells need to be manually split, which greatly reduces the hoisting efficiency. Moreover, the work of replacing the unit cells is usually carried out during the intermittent time of high furnace production, and the intermittent time of high furnace production is usually only 6-8 hours. Sometimes, even during the intermittent time of high furnace production, it is difficult to complete two hoisting operations. SUMMARY
[0004] The utility model aims at providing a hoist device for high furnace water slag pool bottom filter system unit cell, which can separate the hardened unit cells during hoisting.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a hoist device for high furnace water slag pool bottom filter system unit cell, which comprises a travelling crane, a frame body, a lower lifting point and a jack. The frame body is shaped to cover the unit cell. The lower lifting point is fixedly connected to the lower surface of the frame body. The lower lifting point is provided in plurality, and each of the lower lifting points corresponds to a hook of the unit cell. The jack is fixedly connected to the lower surface of the frame body. The jack is arranged outside the lower lifting point. The travelling crane is detachably connected to the frame body to lift the frame body.
[0006] Preferably, the lower lifting point is detachably connected to the hook. After the lower lifting point is connected to the hook, the position of the jack corresponds to the frame of the unit cell around the unit cell to be lifted.
[0007] Preferably, a length-adjustable connecting piece is arranged between the unit cell and the frame body.
[0008] Preferably, the connecting piece is arranged as a length-adjustable clasp, which is detachably connected with the lower lifting point and the hook.
[0009] Preferably, the jack is arranged as a hydraulic jack, which comprises a hydraulic station and a jacking mechanism driven by the hydraulic station, and the jacking mechanism is fixedly connected with the frame body.
[0010] Preferably, the jacking mechanism is arranged in two groups, and the two groups of jacking mechanisms are respectively located on two opposite sides of the frame body.
[0011] The jacking mechanisms in the same group are driven by the same hydraulic station.
[0012] Preferably, the upper surface of the frame body is provided with an upper lifting point, and the upper lifting point is arranged at the corner of the frame body.
[0013] Preferably, the hoisting device for the unit cell of the blast furnace water granulated slag pool bottom filter system further comprises a hoisting rope, and the travelling crane is connected with the upper lifting point through the hoisting rope.
[0014] According to the above technical scheme, the hoisting device for the unit cell of the blast furnace water granulated slag pool bottom filter system can lift and hoist the unit cell through the lower lifting point by arranging the lower lifting point capable of cooperating with the hook of the unit cell on the lower surface of the frame body.
[0015] The jacks are arranged outside the lower lifting point, and the jacks act on the positions around the unit being lifted. After the jacks start to act, the length of the jacks will be lengthened, and the frame body will be lifted in the process of the jacks being lengthened. Since the lower lifting point cooperates with the unit cell, the unit cell is also lifted in the process of the frame body being lifted. While the unit cell is lifted, the other end of the jack also applies a downward thrust to the equipment around the unit cell, so that the unit cell or the water granulated slag around the unit cell moves relatively with the unit cell being lifted, thereby realizing the separation of the unit cell being lifted and the surrounding unit cells.
[0016] Therefore, the unit cell is not broken down under the action of the jack, so that only one unit cell is operated each time, avoiding the case of overall hoisting of multiple unit cells. After the hoisted unit cell is separated from the surrounding unit cells, the crane can easily hoist the unit cell. The hoisting weight of the separated unit cell is predictable, and the hoisting weight is relatively small, and the travelling crane in the workshop can meet the requirements, so that the hoisting work of the unit cell is more convenient after using the hoisting device for the unit cell of the blast furnace water slag pool bottom filter system.
[0017] When the hoisting device for the unit cell of the blast furnace water slag pool bottom filter system is used to hoist the unit cell, the unit cell is separated during hoisting, and the work efficiency of hoisting the unit cell is improved.
[0018] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0019] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with the following specific embodiments, but do not constitute a limitation on the present application. In the drawings:
[0020] Figure 1 is a left view of a hoisting device for a unit cell of a blast furnace water slag pool bottom filter system;
[0021] Figure 2 is Figure 1 a top view of
[0022] Figure 3 is Figure 1 a bottom view of
[0023] BRIEF DESCRIPTION OF DRAWINGS
[0024] 1 frame body 2 lower lifting point
[0025] 3 jack 4 upper lifting point DETAILED DESCRIPTION
[0026] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.
[0027] In the present application, unless otherwise stated, the orientation words contained in the terms such as "lower surface, outer side, upper surface, corner" only represent the orientation of the term in the conventional use state, or are commonly used by those skilled in the art, and should not be regarded as a limitation on the term.
[0028] participate Figures 1-3 The hoisting device for the unit cell of the blast furnace water slag pool bottom filter system comprises a crane, a frame body 1, a lower lifting point 2 and a jack 3, the frame body 1 is arranged to cover the shape of the unit cell, the lower lifting point 2 is fixedly connected to the lower surface of the frame body 1, the lower lifting point 2 is arranged in multiple, the multiple lower lifting points 2 correspond to the hooks of the unit cell one by one, the jack 3 is fixedly connected to the lower surface of the frame body 1, the jack 3 is arranged outside the lower lifting point 2, and the crane is detachably connected with the frame body 1 for lifting the frame body 1.
[0029] Through the arrangement of the lower lifting point 2 on the lower surface of the frame body 1, which can cooperate with the hooks of the unit cell, the hoisting device for the unit cell of the blast furnace water slag pool bottom filter system can lift and hoist the unit cell through the lower lifting point 2.
[0030] The jacks 3 are arranged outside the lower lifting point 2, and the jacks 3 act on the positions around the hoisted unit. After the jacks 3 start to act, the length of the jacks 3 will be lengthened, and the frame body 1 will be lifted in the process of elongation of the jacks 3. Since the lower lifting point 2 cooperates with the unit cell, the unit cell is also lifted in the process of lifting of the frame body 1. While lifting the unit cell, the other end of the jack 3 also applies a downward thrust to the equipment around the unit cell, so that the unit cell or water slag around the unit cell moves relative to the hoisted unit cell, thereby realizing the separation of the hoisted unit cell and the surrounding unit cell.
[0031] Therefore, the unit cell can be broken under the action of the jacks 3, so that only one unit cell is operated each time, and the overall hoisting of multiple unit cells is avoided. After the hoisted unit cell is separated from the surrounding unit cell, the crane can easily hoist the unit cell. The hoisting weight of the separated unit cell is predictable, and the hoisting weight is relatively small, so the crane in the workshop can meet the requirements. Therefore, after using the hoisting device for the unit cell of the blast furnace water slag pool bottom filter system, the hoisting work of the unit cell is more convenient.
[0032] When the hoisting device for the unit cell of the blast furnace water slag pool bottom filter system is used to hoist the unit cell, the separation of the cemented unit cell is realized at the same time, and the work efficiency of hoisting the unit cell is improved.
[0033] In the embodiment, preferably, the lower lifting point 2 is detachably connected with the hook, and the position of the jack 3 corresponds to the frame of the unit cell around the unit cell to be hoisted after the lower lifting point 2 is connected with the hook.
[0034] The position of the jack 3 corresponds to the frame of the unit cell around the unit cell to be hoisted, so that the acting surface of the jack 3 has better rigidity.
[0035] One end of the jack 3 is fixedly connected with the frame body 1, and the other end acts on the frame of the unit cell. When the rod of the jack 3 is extended, the two adjacent unit cells can be reliably separated, and the work is more reliable.
[0036] In this embodiment, preferably, a length-adjustable connecting piece is arranged between the unit cell and the lower lifting point 2.
[0037] Due to different environments of the pool bottom, the distance between the unit cell and the frame body 1 is different in different hoisting processes. Therefore, a length-adjustable connecting piece needs to be arranged between the lower lifting point 2 and the hook. The connecting piece realizes the connection of the lower lifting point 2 and the hook by adjusting the length, and can also adapt to the different lengths between the lower lifting point 2 and the unit cell.
[0038] In one real-time mode, the unit cell and the frame body 1 are tied by a steel wire rope. When the hoisting device for the unit cell of the blast furnace water slag pool bottom filter system is placed on the pool bottom, the lower lifting point 2 and the hook can be tied according to the actual situation on the spot. The steel wire rope can realize the effective fixation of the lower lifting point 2 and the hook. However, this mode is time-consuming and has low work efficiency.
[0039] In this embodiment, preferably, the connecting piece is arranged as a length-adjustable clasp, and the clasp is detachably connected with the lower lifting point 2 and the hook.
[0040] Since the jack 3 has an initial height, when the jack 3 at the initial height falls on the pool bottom, the relative position of the lower lifting point 2 and the hook is random. The length-adjustable clasp can realize the reliable connection of the lower lifting point 2 and the hook.
[0041] Preferably, the clasp is arranged to be telescopic. The length of the clasp is first set to be long. The long clasp is first connected with the lower lifting point 2, and then connected with the hook. Subsequently, the length of the clasp is adjusted according to the height of the jack 3, so that the lower lifting point 2, the clasp and the hook form a rigid connection, and the length after the connection is consistent with the height of the jack 3.
[0042] Then the jack 3 acts, and the hoisted unit cell is separated from the surrounding unit cells as the length of the jack 3 increases.
[0043] The clasp includes two parts that are screwed with each other. The two parts respectively include a bolt and a nut. The length of the clasp can be adjusted by adjusting the length of the bolt screwed into the nut.
[0044] In the embodiment, preferably, the jack 3 is a hydraulic jack 3, which comprises a hydraulic station and a jacking mechanism driven by the hydraulic station, and the jacking mechanism is fixedly connected with the frame body 1.
[0045] Since the unit cells are tightly connected, a large transverse thrust is required to separate two unit cells from each other. The hydraulic jack 3 can provide sufficient thrust to separate the unit cells.
[0046] In the embodiment, preferably, the jacking mechanism is provided in two groups, and the two groups of jacking mechanisms are respectively arranged on two opposite sides of the frame body 1.
[0047] The jacking mechanisms in the same group are driven by the same hydraulic station.
[0048] The jacking mechanisms in the same group driven by the same hydraulic station can act synchronously. In this way, the jacking mechanisms on the same side can act synchronously, and the stress condition is better, and the work efficiency is high.
[0049] The two groups of jacking mechanisms act simultaneously, so that the two sides of the frame body 1 can be lifted synchronously, and the frame body 1 can be kept in a horizontal state during lifting, so that the frame body 1 can be separated from the surrounding unit cells more stably.
[0050] In the embodiment, preferably, the upper surface of the frame body 1 is provided with an upper lifting point 4, and the upper lifting point 4 is arranged at a corner of the frame body 1.
[0051] The upper lifting point 4 is connected with a travelling crane, and the travelling crane acts on the frame body 1 through the upper lifting point 4, so as to reliably hoist the frame body 1.
[0052] The upper lifting point 4 arranged at the corner position makes the hoisting of the frame body 1 by the travelling crane more efficient.
[0053] In the embodiment, preferably, the hoisting device for the unit cell of the blast furnace water granulated slag pool bottom filter system further comprises a hoisting rope, and the travelling crane is connected with the upper lifting point 4 through the hoisting rope.
[0054] The preferred embodiments of the utility model are described in detail above with reference to the drawings, but the utility model is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical solutions of the utility model within the technical concept of the utility model, and these simple modifications all belong to the protection scope of the utility model.
[0055] In addition, it should be noted that the various specific technical features described in the foregoing detailed description can be combined in any suitable manner, and that the application contemplates all possible combinations of features, unless otherwise indicated herein.
[0056] Furthermore, the various embodiments of the application can also be combined with each other, as long as they do not contradict the spirit of the application, and they should also be considered as disclosed by the application.
Claims
1. A hoisting device for a cell of a submerged filter system for a blast furnace slag pit, characterized in that, The lifting device for the unit cell of the blast furnace slag pool bottom filter system comprises a crane, a frame body (1), a lower lifting point (2) and a jack (3), the frame body (1) is arranged to cover the shape of the unit cell, the lower lifting point (2) is fixedly connected to the lower surface of the frame body (1), the lower lifting point (2) is provided in plurality, the plurality of lower lifting points (2) correspond one-to-one to the hooks of the unit cell, the jack (3) is fixedly connected to the lower surface of the frame body (1), the jack (3) is arranged outside the lower lifting point (2), and the crane is detachably connected with the frame body (1) for lifting the frame body (1).
2. The hoisting device for a cell of a blast furnace slag water pond filtration system unit according to claim 1, characterized in that, The lower lifting point (2) is detachably connected with the hook, and after the lower lifting point (2) is connected with the hook, the position of the jack (3) corresponds to the frame of the unit cell around the unit cell to be lifted.
3. The hoisting device for a cell of a blast furnace slag water pond filtration system unit according to claim 1, characterized in that, An adjustable length connecting piece is arranged between the unit cell and the frame body (1).
4. The hoisting device for a cell of a blast furnace slag water pond filtration system unit according to claim 3, characterized in that, The connecting piece is arranged as a length-adjustable clasp, and the clasp is detachably connected with the lower lifting point (2) and the hook.
5. The hoisting device for a cell of a blast furnace slag water pond filtration system unit according to claim 1, characterized in that, The jack (3) is arranged as a hydraulic jack, the hydraulic jack comprises a hydraulic station and a jacking mechanism driven by the hydraulic station, and the jacking mechanism is fixedly connected with the frame body (1).
6. The hoisting device for a cell of a blast furnace slag water pond filtration system unit according to claim 5, characterized in that, The jacking mechanism is arranged in two groups, and the two groups of jacking mechanisms are respectively located on two oppositely arranged sides of the frame body (1). The jacking mechanisms in the same group are driven by the same hydraulic station.
7. The hoisting device for a cell of a blast furnace slag water pond filtration system unit according to claim 1, characterized in that, An upper lifting point (4) is arranged on the upper surface of the frame body (1), and the upper lifting point (4) is arranged at the corner of the frame body (1).
8. The hoisting device for a cell of a blast furnace slag water pond filtration system unit according to claim 7, characterized in that, The lifting device for the unit cell of the blast furnace slag pool bottom filter system further comprises a lifting rope, and the crane is connected with the upper lifting point (4) through the lifting rope.