An in-flight docking bulk slag intercept device

Abstract

The present application relates to a kind of air interface block slag intercepting device, including support swing mechanism and intercepting mechanism: the support swing mechanism one end is fixedly connected with molten slag feed platform, the other end can swing certain angle;The support swing mechanism includes support assembly, swing assembly, linkage assembly;The support assembly is fixedly connected with molten slag feed platform, the swing assembly one end is connected with support assembly, the other end is connected with linkage assembly;The intercepting mechanism has grid part, and fixed or separated with slag tank upper mouth by linkage assembly with the swing of swing assembly is realized.The beneficial effects of the present application are that blocky slag can be prevented from entering molten metallurgical slag heat exchange equipment to cause heat exchange equipment damage and block heat exchange equipment feed port, and automatic docking with slag tank can be realized, and can be automatically reset after slagging is completed, without modification to the slag tank body, without affecting the work of slag tank in other processes.

Description

Technical Field

[0001] This invention relates to the field of liquid slag waste heat recovery technology, and in particular to an aerial docking block slag interception device. Background Technology

[0002] As the industry with the largest consumption of resources, improving the effective utilization rate of resources and promoting sustainable circular processes is the dominant direction for the future development of the metallurgical industry.

[0003] As a pillar industry of my country's industrialization, the metallurgical industry still faces challenges in the resource utilization of metallurgical slag, and it is difficult to effectively balance the granulation and heat recovery of metallurgical slag.

[0004] Taking steel slag as an example, the slag discharge temperature of steel slag can reach 1600℃, containing a large amount of heat energy. For every ton of crude steel produced, 100-150 kg of steel slag is generated. In recent years, my country's annual steel slag production has remained at or exceeded 100 million tons. Coupled with its consistently low resource utilization rate, this results in approximately 70 million tons of steel slag being dumped annually. This not only occupies a large amount of land but also causes pollution to soil, air, and water bodies.

[0005] Therefore, there is an urgent need to develop a technology for recovering waste heat, such as sensible heat and latent heat, from molten metallurgical slag. Chinese Patent Application No. 201920878047.6 discloses a waste heat recovery device and system for liquid metallurgical slag, including a heat exchange box with an inlet for ultra-high temperature hydraulic metallurgical slag to flow into it, and heat exchange components for absorbing the heat from the ultra-high temperature metallurgical slag inside the heat exchange box.

[0006] The aforementioned waste heat recovery system requires pouring the molten metallurgical slag from the slag pot into the heat exchange box. During this process, there may be lumpy slag in the slag pot. If lumpy slag enters the heat exchange box, it can easily cause damage and blockage to the heat exchange box. Therefore, it is necessary to prevent lumpy slag from entering the heat exchange box. Summary of the Invention

[0007] To address the problem that lumpy slag inside the slag pot can easily damage the heat exchanger housing, this invention provides an interception device that can prevent lumpy slag from entering the heat exchanger housing and can achieve automatic loading and unloading. The technical solution is as follows:

[0008] An aerial docking blocky debris interception device includes:

[0009] Support swing mechanism: one end is fixedly connected to the molten slag feeding platform, and the other end can swing at a certain angle; the support swing mechanism includes a support component, a swing component, and a linkage component; the support component is fixedly connected to the molten slag feeding platform, and one end of the swing component is connected to the support component, and the other end is connected to the linkage component;

[0010] Interception mechanism: It has a grid section, which can be fixed or detached from the top of the slag pot by means of the linkage component swinging with the swing component.

[0011] The supporting swing mechanism of the present invention is used to drive the interception mechanism to operate and is fixed above the slag discharge port of the slag tank to be discharged; after the slag discharge is completed, the interception mechanism is then driven to detach from the slag tank.

[0012] Furthermore, the interception mechanism includes a fixedly connected interception platform and a grid section; the interception platform is connected to the linkage component and is used to cover the grid section above the slag dumping port of the slag pot, thereby intercepting larger lumps of slag inside the slag pot during slag dumping.

[0013] Furthermore, the supporting swing mechanism is provided in two sets, which are parallel to each other; both ends of the interception platform are respectively connected to the linkage components of the two sets of supporting swing mechanisms. Providing two sets of supporting swing mechanisms on both sides of the slag pot improves the structural stability of the entire interception device.

[0014] Furthermore, the support assembly includes a support beam and a movable bracket slidably connected to the support beam; one end of the movable bracket is provided with upwardly protruding supports on both sides, and a positioning pin is provided between the supports. The positioning pin is retractable and used for locking and unlocking between the movable bracket and the support beam; the upper end of the positioning pin has a ball head.

[0015] The swing assembly includes a hydraulic cylinder and a swing arm. One end of the hydraulic cylinder is connected to the movable support, and its piston rod is connected to the swing arm. The swing arm is swung by extending and retracting the hydraulic cylinder. One end of the swing arm has a ball socket, which is pressed and connected to the ball head of the positioning pin and hinged to the support. The other end is connected to the linkage assembly.

[0016] When the hydraulic cylinder is not ejected, the ball head of the locating pin is pressed against the ball socket of the swing arm, and the locating pin is in a compressed state, locking the moving bracket and the support beam. As the piston rod of the hydraulic cylinder is gradually ejected, the ball head of the locating pin and the ball socket of the swing arm remain tangent. When the hydraulic cylinder approaches its maximum stroke, the locating pin gradually resets, releasing the locking between the moving bracket and the support beam, allowing the moving bracket to gain a certain amount of free movement. However, the constraint of the swing arm still exists, so the moving bracket can only achieve micro-movement, thereby improving the tolerance of the interception device to the position error of the slag pot.

[0017] Furthermore, the linkage assembly includes a connecting column, a rotating shaft, a pull rod, and a mounting part; the upper end of the connecting column is connected to the interception mechanism, and an axial waist hole is opened in the middle and lower part; the mounting part is fixedly connected to the swing arm, and an installation cavity is opened inside, and the swing arm has an inner cavity that communicates with the installation cavity and can accommodate the connecting column; the pull rod is telescopic, one end is fixed to the installation cavity, and the other end extends out of the installation cavity and the inner cavity in sequence and is connected to the lower end of the connecting column.

[0018] When the hydraulic cylinder is not ejected, the lower end of the connecting column is located in the inner cavity and the pull rod is in its natural state. As the hydraulic cylinder gradually ejects the piston rod, the connecting column gradually disengages from the inner cavity. During this process, the rotating shaft gradually moves downward relative to the waist hole. When the hydraulic cylinder reaches its maximum operating position, the connecting column is completely disengaged from the inner cavity, the rotating shaft is located at the bottom of the waist hole, and the pull rod is in a stretched state. At this time, the connecting column gains the freedom to rotate around the rotating shaft, which means it can rotate with the tilting of the slag pot.

[0019] After the slag is dumped, the hydraulic cylinder retracts, and the connecting column re-enters the inner cavity under the pulling force of the tie rod, restoring the support swing mechanism to its initial state.

[0020] Furthermore, it also includes a spring buffer mechanism; the upper end of the connecting column is hinged to the interception platform, and one end of the spring buffer mechanism is hinged to the interception platform, while the other end is hinged to the upper middle part of the connecting column. The spring buffer mechanism is used to ensure that the interception mechanism remains in contact with the top of the slag pot throughout the entire slag dumping process, and at the same time, it can buffer the impact during the docking process between the slag interception device and the slag pot.

[0021] Furthermore, it also includes two sets of clamping mechanisms located at both ends of the lower surface of the interception platform; each clamping mechanism includes a fixed block, a rotating block, and a pin; the fixed block is connected to the interception platform and has a through hole inside to accommodate the rotating block; at least two rotating blocks are provided, in an "L" shape, and are respectively hinged to both ends of the fixed block by pins, for clamping the interception platform and the upper opening of the slag pot. The clamping mechanism can further prevent relative movement between the interception mechanism and the slag pot during the slag dumping process.

[0022] Furthermore, the rotating block has flanges at both ends, and without external force, the end of the rotating block closer to the middle of the fixed block is higher than the other end. The clamping mechanism is open in its natural state. After the upper opening of the slag pot is inserted into the rotating block, the rotating block rotates and clamps the inner and outer walls of the upper opening of the slag pot through the outer flanges, ultimately achieving a self-weight clamping state.

[0023] Furthermore, the support component is inclined downwards towards the slag pot, and its lower surface has an angle of 0.5-2° with the molten slag feeding platform. The small inclination angle design allows the movable support to tend to move towards the slag pot due to gravity after being unlocked from the support beam, which can further make the entire interception device fit the slag pot more closely.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. It can automatically dock with the slag pot and automatically reset after slag dumping without involving any modification to the slag pot body or affecting the operation of the slag pot in other processes.

[0026] 2. The slag-blocking function does not involve changes to the control methods such as vehicle operation, making the modification simple and the operation convenient;

[0027] 3. It can avoid damage to the heat exchange equipment caused by lumpy slag entering the molten metallurgical slag heat exchange equipment, as well as the problem of clogging the feed inlet of the heat exchange equipment;

[0028] 4. The slag discharge gap allows for easy cleaning of the interception mechanism, preventing metallurgical slag from accumulating in the grid and causing blockage. Attached Figure Description

[0029] Figure 1 : A schematic diagram of the main structure of one embodiment of the present invention.

[0030] Figure 2 A cross-sectional view of an embodiment of the present invention (the grid portion is omitted in the figure).

[0031] Figure 3 : Figure 2 Enlarged view of part A in the middle.

[0032] Figure 4 : Figure 2 Enlarged view of section B.

[0033] Figure 5 : Schematic diagram of the waiting state of this invention.

[0034] Figure 6 : Schematic diagram of the present invention and the slag pot in a fixed state.

[0035] Figure 7 : Schematic diagram of the present invention in the state of being tilted with the slag pot.

[0036] Figure 8 : Schematic diagram of clamping mechanism.

[0037] Figure 9 : 3D view of the clamping mechanism.

[0038] In the picture:

[0039] 11. Support assembly; 111. Support beam; 112. Moving bracket; 113. Support; 114. Positioning pin; 12. Swing assembly; 121. Hydraulic cylinder; 122. Swing arm; 102. Inner cavity; 13. Linkage assembly; 131. Connecting column; 100. Waist hole; 132. Rotating shaft; 133. Tie rod; 134. Mounting part; 101. Mounting cavity;

[0040] 2. Interception mechanism; 21. Grille section; 22. Interception platform; 23. Clamping mechanism; 231. Fixing block; 232. Rotating block; 233. Pin; 234. Through hole;

[0041] 3. Spring buffer mechanism; 4. Slag feeding platform; 41. Feed inlet; 5. Slag pot. Detailed Implementation

[0042] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0043] Example 1

[0044] like Figure 1-9 The aerial docking block slag interception device shown includes a support swing mechanism, an interception mechanism 2, a spring buffer mechanism 3, and a clamping mechanism 23;

[0045] Support swing mechanism: includes support component 11, swing component 12, and linkage component 13; the support component 11 is fixedly connected to the molten slag feeding platform 4, and one end of the swing component 12 is connected to the support component 11 and the other end is connected to the linkage component 13.

[0046] Two sets of supporting swing mechanisms are arranged parallel to each other; the two ends of the intercepting mechanism 2 are respectively connected to the linkage components 13 of the two sets of supporting swing mechanisms. The supporting component 11 includes a supporting beam 111 and a movable bracket 112 slidably connected to the supporting beam 111; one end of the movable bracket 112 is provided with upwardly protruding supports 113 on both sides, and a positioning pin 114 is provided between the supports 113. The positioning pin 114 is telescopic and used for locking and unlocking between the movable bracket 112 and the supporting beam 111; the upper end of the positioning pin 114 has a ball head. The supporting component 11 is inclined downward towards the slag pot 5, and its lower surface has an angle of 0.6° with the molten slag feeding platform 4.

[0047] The swing assembly 12 includes a hydraulic cylinder 121 and a swing arm 122. One end of the hydraulic cylinder 121 is connected to the movable bracket 112, and its piston rod is connected to the swing arm 122. The swing arm 122 is swung by the extension and retraction of the hydraulic cylinder 121. One end of the swing arm 122 has a ball socket, which is pressed and connected to the ball head of the positioning pin 114 and hinged to the support 113. The other end is connected to the linkage assembly 13.

[0048] The linkage component 13 includes a connecting column 131, a rotating shaft 132, a pull rod 133, and a mounting part 134; the upper end of the connecting column 131 is connected to the intercepting mechanism 2, and an axial waist hole 100 is opened in the middle and lower part; the mounting part 134 is fixedly connected to the swing arm 122, and an mounting cavity 101 is opened inside it, and the swing arm 122 has an inner cavity 102 that communicates with the mounting cavity 101 and can accommodate the connecting column 131; the pull rod 133 is telescopic, one end is fixed to the mounting cavity 101, and the other end extends out of the mounting cavity 101 and the inner cavity 102 in sequence and is connected to the lower end of the connecting column 131.

[0049] Interception mechanism 2: The interception mechanism 2 includes an interception platform 22 and a grid section 21 that are fixedly connected; the interception platform 22 is connected to the linkage component 13 and is used to cover the grid section 21 above the slag dumping port of the slag tank 5, so as to intercept larger blocky slags in the slag tank 5 during slag dumping.

[0050] Spring buffer mechanism 3: The upper end of the connecting column 131 is hinged to the intercepting platform 22, and one end of the spring buffer mechanism 3 is hinged to the intercepting platform 22 and the other end is hinged to the upper middle part of the connecting column 131.

[0051] Clamping mechanism 23: Two sets of clamping mechanisms 23 are disposed at both ends of the lower surface of the interception platform 22; each clamping mechanism 23 includes a fixed block 231, a rotating block 232, and a pin 233; the fixed block 231 is connected to the interception platform 22 and has a through hole 234 inside to accommodate the rotating block 232; two rotating blocks 232 are provided, in an "L" shape, and are respectively hinged to both ends of the fixed block 231 by the pin 233, for clamping the interception platform 22 and the upper opening of the slag tank 5. The rotating blocks 232 have flanges at both ends, and when no external force is applied, the end of the rotating block 232 closer to the middle of the fixed block 231 is higher than the other end.

[0052] The working principle of this embodiment is as follows:

[0053] Initial state: The interception device is in a waiting state, the hydraulic cylinder 121 is not pushed out, the ball head of the positioning pin 114 is pressed against the ball socket of the swing arm 122, the moving bracket 112 and the support beam 111 are locked, and the connecting column 131 is located in the inner cavity 102.

[0054] Device startup: When the slag tank 5 reaches the set position, the piston rod of the hydraulic cylinder 121 is pushed out, and the swing arm 122 drives the interception mechanism 2 to move towards the slag tank 5. During this period, the ball head of the positioning pin 114 is continuously tangent to the swing ball socket, the positioning pin 114 is always locked with the support beam 111, the connecting column 131 gradually moves up along the inner cavity 102, and the rotating shaft 132 gradually moves down relative to the waist hole 100.

[0055] Docking with slag pot 5: When the hydraulic cylinder 121 reaches its maximum stroke, the positioning pin 114 gradually returns to its natural state and releases the lock on the support beam 111. If the position of slag pot 5 is slightly off at this time, the moving bracket 112 can be moved slightly to complete the final positioning. At the same time, the intercepting mechanism 2 is fixed to the upper opening of slag pot 5 through the clamping mechanism 23, and the connecting column 131 is completely dislodged from the inner cavity 102.

[0056] As the slag pot 5 rotates: When the slag pot 5 is dumping slag, an external hook applies force to it. As the slag pot 5 gradually tilts towards the feed inlet 41, the intercepting mechanism 2 rotates synchronously around the rotating axis, thereby realizing the linkage between the intercepting mechanism 2 and the slag pot 5.

[0057] Reset: After the slag dumping is completed, the slag tank 5 is reset, the hydraulic cylinder 121 is controlled to retract, the connecting column 131 is brought back into the inner cavity 102 due to the guiding action of the tie rod 133, and then loses its rotational freedom and is reset together with the swing component 12, and finally returns to the initial state, waiting for the next round of slag dumping.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An airborne interface bulk slag intercepting device, characterized in that, include: Support swing mechanism: one end is fixedly connected to the molten slag feeding platform, and the other end can swing at a certain angle; The supporting swing mechanism includes a supporting component, a swinging component, and a linkage component; The support component is fixedly connected to the molten slag feeding platform, and one end of the swing component is connected to the support component and the other end is connected to the linkage component. Interception mechanism: It has a grid section, which can be fixed or detached from the top of the slag pot by means of the linkage component swinging with the swing component; The interception mechanism includes a fixedly connected interception platform and a grid section; the interception platform is connected to a linkage component and is used to cover the grid section above the slag dumping port of the slag tank. The supporting swing mechanism is provided in two sets, which are parallel to each other; the two ends of the interception platform are respectively connected to the linkage components of the two sets of supporting swing mechanisms; The support assembly includes a support beam and a movable bracket slidably connected to the support beam; one end of the movable bracket is provided with two upwardly protruding supports on both sides, and a positioning pin is provided between the supports. The positioning pin is retractable and used for locking and unlocking between the movable bracket and the support beam; the upper end of the positioning pin has a ball head. The swing assembly includes a hydraulic cylinder and a swing arm. One end of the hydraulic cylinder is connected to the movable support, and its piston rod is connected to the swing arm. The swing arm is swung by extending and retracting the hydraulic cylinder. One end of the swing arm has a ball socket, which is pressed and connected to the ball head of the positioning pin and hinged to the support. The other end is connected to the linkage assembly. The linkage assembly includes a connecting column, a rotating shaft, a pull rod, and a mounting part; the upper end of the connecting column is connected to the interception mechanism, and an axial waist hole is opened in the middle and lower part; the mounting part is fixedly connected to the swing arm, and an installation cavity is opened inside it, and the swing arm has an inner cavity that communicates with the installation cavity and can accommodate the connecting column; the pull rod is telescopic, one end is fixed to the installation cavity, and the other end extends out of the installation cavity and the inner cavity in sequence and connects to the lower end of the connecting column.

2. An airborne interface block slag interceptor as claimed in claim 1, characterised in that: It also includes a spring buffer mechanism; the upper end of the connecting column is hinged to the interception platform, and one end of the spring buffer mechanism is hinged to the interception platform and the other end is hinged to the upper middle part of the connecting column.

3. An airborne interface block slag interceptor as claimed in claim 2, wherein: It also includes two sets of clamping mechanisms set at both ends of the lower surface of the interception platform; the clamping mechanism includes a fixed block, a rotating block and a pin; the fixed block is connected to the interception platform and has a through hole inside that can accommodate the rotating block; at least two rotating blocks are provided, in an "L" shape, and are respectively hinged to both ends of the fixed block by pins, for clamping the interception platform and the upper opening of the slag tank.

4. An airborne interface block slag interceptor as claimed in claim 3 wherein: The rotating block has flanges at both ends. Without external force, the end of the rotating block closer to the middle of the fixed block is higher than the other end.

5. An airborne interface block slag interceptor as defined in claim 1 wherein: The support component is inclined downward toward the slag pot, and its lower surface has an angle of 0.5-2° with the molten slag feeding platform.

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