A raw material processing chain conveyor for a steel mill

Abstract

This invention discloses a chain conveyor device for raw material processing in steel plants, comprising a conveyor chain assembly, multiple load-bearing chain plates, a material-bearing base plate, an L-shaped anti-tilt baffle, and a telescopic reset support assembly. A gap is formed between adjacent load-bearing chain plates. The L-shaped anti-tilt baffle includes an anti-slip baffle and a ballast cover. The ballast cover fits against the material-bearing base plate and covers the gap between the chain plates. The anti-slip baffle prevents material from sliding down during inclined conveying. After material is loaded into the separating material-bearing trough, the weight of the material acts on the ballast cover, causing it to press against the material-bearing base plate and improve the posture stability of the anti-slip baffle. When the anti-slip baffle experiences increased force due to rolling, uneven loading, or a shift in the center of gravity, the L-shaped anti-tilt baffle slides relative to the material-bearing base plate and, under the action of the telescopic reset support assembly, forms an anti-tilt support angle to limit further tilting. This device can reduce material leakage between chain plates and internal jamming wear, improving the stability of inclined conveying of granular raw materials in steel plants.

Description

Technical Field

[0001] This invention relates to the field of chain conveyor technology, and more particularly to a chain conveyor device for raw material processing in steel plants. Background Technology

[0002] During the processing and transfer of raw materials and semi-finished products in steel mills, continuous conveying is typically required between different equipment. This includes conveying granular raw materials such as pellets, granular sinter, coke, limestone granules, dolomite granules, return ore, and steel slag to silos, screening equipment, crushing equipment, batching equipment, or other processing equipment. These materials are generally characterized by large unit mass, high particle hardness, irregular shape, strong rolling properties in some areas, and localized inclusions of large pieces or clumps. During inclined conveying, transitional conveying, and short-distance lifting conveying, problems such as slippage, rolling, leakage, jamming, and wear of transmission components are prone to occur.

[0003] While existing belt conveyors can transport bulk materials horizontally or at an incline in steel plants, they primarily rely on the friction between the conveyor belt surface and the material, as well as the patterns, sidewalls, or diaphragms on the belt surface, to move the material. When conveying granular raw materials with high rolling properties and large unit mass, such as pellets, granular sinter, and limestone particles, the material tends to slide back or roll off the conveyor belt surface in inclined sections. Improving the anti-slip effect by reducing the material layer thickness, lowering the conveying angle, or installing patterned belts, sidewalls, or diaphragms may limit the conveying capacity per unit time, increase the equipment layout length, or cause problems such as conveyor belt wear, misalignment, tearing, and fatigue damage to the diaphragms under the impact of heavy-load granular materials and long-term friction. Therefore, chain conveyors offer better load-bearing adaptability for short-distance, high-load, granular steel plant raw material lifting and conveying scenarios.

[0004] Chain conveyors typically use a conveyor chain assembly to drive multiple carrier chain plates in a cyclical operation. These carrier chain plates support and transport materials. Compared to flexible conveyor belts, carrier chain plates have higher structural strength, making them suitable for conveying heavier, granular materials. To accommodate the weight and impact of granular raw materials in steel plants, carrier chain plates are usually designed to be thicker or reinforced. However, with increased thickness or load-bearing capacity, adjacent carrier chain plates require a larger clearance when passing around sprockets, entering transition sections, or transitioning from horizontal to inclined sections to avoid interference during movement. While this clearance ensures smooth turning and bending transitions, it also allows fine particles, debris, or powder mixtures to leak through the gaps, potentially entering the conveyor chain assembly, sprockets, hinges, or other internal moving parts. This can lead to jamming, increased wear, increased running resistance, and difficulties in cleaning and maintenance.

[0005] To prevent materials from sliding down during inclined conveying, existing chain conveyors typically install fixed baffles on the chain plates or scrapers to separate or block the material within a certain area. However, these fixed baffles are mostly simple vertical plates, relying primarily on their own structural strength to resist the downward thrust of the material. When the material is evenly distributed and the conveying angle is small, the fixed baffles can provide some resistance. However, in actual steel plant raw material conveying, granular materials such as pellets, steel slag, and limestone particles are prone to center-of-gravity shifts due to changes in the inclination angle, equipment vibration, localized accumulation of material layers, particle rolling, or eccentric loading. This causes the material force to no longer act evenly on the surface of the supporting chain plate, but instead concentrates on the baffles. In this case, the baffles are easily subjected to large overturning moments, which may lead to loosening, deformation, or overturning of the baffles, or even causing the material to slide down over the baffles, affecting the stability of the conveying process.

[0006] Meanwhile, simply increasing the height or rigidity of the baffle plate to improve the anti-slip effect of the inclined section will bring new problems. On the one hand, a higher or heavier baffle structure will increase the load on the chain plate; on the other hand, when materials roll, are unevenly loaded, or are impacted by large pieces, the rigid baffle structure lacks posture adjustment and buffer space, which can easily press the material between the baffle plate and the supporting components, causing local jamming. In addition, ordinary baffle plates usually only serve to stop the material and cannot effectively cover the gaps between adjacent supporting chain plates, thus failing to simultaneously solve the problems of anti-slip in inclined conveyors, material leakage between chain plates, and jamming and wear of internal moving parts.

[0007] Therefore, the existing chain conveyor devices used in steel plants still have the following shortcomings: (1) In order to meet the needs of turning and transition bending, a gap is reserved between adjacent bearing chain plates. This gap is prone to material leakage, material clamping and wear of internal moving parts; (2) When conveying granular materials with strong rolling properties or obvious eccentric load, ordinary fixed baffles are prone to overturning due to concentrated pushing pressure; (3) Existing baffle structures are mostly single baffles, which are difficult to enhance baffle stability by utilizing the weight of the material itself, and are also difficult to form a discharge space that is conducive to discharging clamped materials in the return or downward state.

[0008] Based on the above problems, it is necessary to provide a chain conveyor device for raw material processing in steel plants, which can cover the gaps between adjacent load-bearing chain plates while maintaining a high load-bearing capacity, reducing material leakage and wear and tear on internal moving parts; and can bear the weight of the material through a ballast-acting retaining structure to improve the stability of the retaining structure during inclined conveying; when the material exerts a large pushing force on the retaining structure due to rolling, eccentric loading, or center of gravity shift, it can also form an anti-tipping support state to limit the retaining structure from further tilting, thereby improving the stability and reliability of the inclined conveying process of granular raw materials in steel plants. Summary of the Invention

[0009] The purpose of this invention is to provide a chain conveyor device for raw material processing in steel plants, which solves the problems of existing chain conveyors when conveying granular raw materials such as pellets, granular sinter, coke, limestone particles, return ore, and steel slag. These problems include the easy leakage and jamming of material between adjacent bearing chain plates, which can cause jamming and wear of the conveyor chain components, sprockets, or hinged parts. Additionally, the fixed retaining structure is prone to tipping over during inclined conveying due to material rolling, uneven loading, or shift in the center of gravity, causing the material to slip over the retaining structure.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: a chain conveyor device for raw material processing in steel plants, comprising: Conveyor chain components; Multiple load-bearing chain plates are arranged sequentially along the running direction of the conveyor chain assembly, and a chain plate movement gap is formed between two adjacent load-bearing chain plates. A material-bearing base plate is disposed on the load-bearing chain plate; The L-shaped anti-tilt baffle is movably mounted on the material support base plate. The L-shaped anti-tilt baffle includes an interconnected anti-slip baffle and a ballast cover plate. The anti-slip baffle extends upward relative to the material support base plate, and the ballast cover plate can at least partially fit against the material support base plate and cover the movement gap of the chain plate. A telescopic reset support assembly is connected between the material-bearing base plate and the L-shaped anti-tilt baffle. The L-shaped anti-tilt baffle can slide relative to the material-bearing base plate, and under the telescopic and retracting action of the telescopic reset support assembly, the side of the ballast cover plate closest to the anti-slip baffle is moved away from the material-bearing base plate, so as to form an anti-tilt support angle between the ballast cover plate and the material-bearing base plate to limit the L-shaped anti-tilt baffle from continuing to tip over.

[0011] Preferably, the bearing chain plate is a thickened chain plate for bearing granular raw materials from the steel plant, and the chain plate movement gap is used to provide movement avoidance space for the bearing chain plate as it moves around the sprocket or through the curved transition section with the conveyor chain assembly. The ballast cover plate extends above the chain plate movement gap to cover the chain plate movement gap.

[0012] Preferably, the anti-slip baffle divides the bearing area on the material-bearing base plate into multiple partitioned material-bearing grooves, and the ballast cover is located in the bottom bearing area of ​​the partitioned material-bearing grooves to bear the weight of the material when it is loaded into the partitioned material-bearing grooves, and to press the ballast cover against the material-bearing base plate and the movable gap of the chain plate.

[0013] Preferably, when the material in the separating material receiving groove exerts a component force on the anti-slip baffle along the downward direction of the material receiving base plate, the L-shaped anti-tilt baffle slides relative to the material receiving base plate, causing the telescopic reset support assembly to undergo telescopic deformation; when the component force increases due to the material rolling, off-center loading, or center of gravity shift, the L-shaped anti-tilt baffle slides further and forms the anti-tilt support angle under the action of the telescopic reset support assembly.

[0014] Preferably, the telescopic reset support assembly includes a telescopic sleeve, a telescopic rod, and a reset elastic element. The telescopic rod is telescopically disposed within the telescopic sleeve, and the reset elastic element is disposed within the telescopic sleeve and acts on the telescopic rod.

[0015] Preferably, the bearing chain plate and / or the material bearing base plate are provided with an installation groove, one end of the telescopic sleeve is located in the installation groove and is rotatably connected to the material bearing base plate, the extended end of the telescopic rod is rotatably connected to the L-shaped anti-tilt material component, and a positioning pin for limiting the rotation angle of the telescopic sleeve is provided in the installation groove.

[0016] Preferably, when the material-bearing base plate moves to the downhill end or the return section with the conveyor chain assembly, the telescopic reset support assembly can rotate relative to the mounting groove and change the support posture of the L-shaped anti-tilt material component, so that a discharge gap is formed between the ballast cover plate and the material-bearing base plate. The discharge gap is used to discharge the material stuck between the ballast cover plate and the material-bearing base plate or in the movement gap of the chain plate.

[0017] Preferably, a positioning cap is threaded onto the end of the telescopic sleeve, and the reset elastic element is a reset spring. The reset spring presses against the telescopic rod, so that the end of the telescopic rod contacts the positioning cap. By adjusting the position of the positioning cap relative to the telescopic sleeve, the exposed length of the extended end of the telescopic rod is adjusted, thereby adjusting the initial included angle between the ballast cover plate and the material bearing base plate and the size of the discharge gap.

[0018] Preferably, the chain conveyor includes a body, the conveyor chain assembly includes two parallel conveyor chains, and the two ends of the bearing chain plate are respectively installed on the two conveyor chains; the body is provided with two sets of parallel side plates, the two sets of parallel side plates extend along the running direction of the conveyor chain assembly, the bearing chain plate, the material support base plate and the L-shaped anti-tilt material component are all located between the two sets of parallel side plates, the L-shaped anti-tilt material component can move with the conveyor chain assembly between the two sets of parallel side plates, and the two sets of parallel side plates are used to laterally limit the material on the material support base plate.

[0019] Preferably, the raw materials used in the steel plant include one or more of the following: ore pellets, granular sinter, coke, limestone particles, dolomite particles, recycled ore, or steel slag.

[0020] The present invention has the following beneficial effects: 1. Achieve dynamic coverage of the gaps between the moving parts of the chain plate, reducing the risk of material leakage and internal jamming and wear.

[0021] This invention incorporates a ballast cover plate on an L-shaped anti-tilt retainer, allowing the cover plate to at least partially conform to the material-bearing base plate and cover the movement gap between adjacent load-bearing chain plates. Because steel mills typically handle heavy granular raw materials, the load-bearing chain plates usually require thickening or reinforcement, and adjacent chain plates need to allow for significant movement gaps when passing over sprockets or through curved transition sections. This invention utilizes the ballast cover plate to cover these gaps, reducing the leakage of fine particles, debris, or powder mixtures into the conveyor chain assembly, sprockets, or hinged parts, thus lowering the risk of jamming and wear of internal moving parts.

[0022] 2. It utilizes the material's own weight to improve the stability of the baffle, unlike a simple fixed baffle.

[0023] The L-shaped anti-tilt baffle of this invention includes an anti-slip baffle and a ballast cover plate, with the ballast cover plate located in the bottom bearing area of ​​the partitioned material receiving trough. When material is loaded into the partitioned material receiving trough, the weight of the material acts on the ballast cover plate, causing it to press against the material receiving bottom plate and the movement gap of the chain plate, thus achieving a self-pressurizing effect for the L-shaped anti-tilt baffle. Compared to ordinary vertical fixed baffles that rely solely on connection strength to resist the downward thrust of material, this invention can enhance the anti-slip baffle's posture-holding force by utilizing the material's own weight, improving the anti-slip stability of rolling materials such as pellets, granular sinter, and limestone particles during inclined conveying.

[0024] 3. It forms an anti-tipping support angle under eccentric loading or rolling conditions, inhibiting the continued tipping of the material stop.

[0025] During inclined conveying of granular raw materials in steel mills, rolling, uneven loading, or shifting center of gravity may cause them to concentrate and press against the anti-slip baffle, leading to a tendency for the L-shaped anti-tipping baffle to tip over. This invention allows the L-shaped anti-tipping baffle to slide relative to the material-bearing base plate. Through the telescopic action of the telescopic reset support assembly, the side of the ballast cover plate closest to the anti-slip baffle moves away from the material-bearing base plate, forming an anti-tipping support angle between the ballast cover plate and the material-bearing base plate. This structure transforms the ballast cover plate from a normal, close-fitting covering state to an anti-tipping support state, effectively limiting the L-shaped anti-tipping baffle from tipping over and reducing the risk of material sliding over the anti-slip baffle.

[0026] 4. A discharge gap is formed during the return or downward movement, improving the self-cleaning capability.

[0027] When the bottom plate of the conveyor chain moves to the downhill or return section, the telescopic reset support assembly can rotate relative to the mounting groove and change its support posture, creating a discharge gap between the ballast cover and the bottom plate. This discharge gap facilitates the removal of residual material stuck between the ballast cover and the bottom plate, or in the movement gaps of the chain plates, reducing the repeated entrainment, compression, and wear of internal moving parts during the return section, thereby improving the continuous operation reliability and maintenance convenience of the chain conveyor. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the chain conveyor device for raw material processing in steel plants proposed in this invention. Figure 2 This is a first-view perspective three-dimensional structural diagram of the conveyor chain assembly and L-shaped anti-tilting material blocking component proposed in this invention. Figure 3 This is a second-view perspective three-dimensional structural diagram of the conveyor chain assembly and L-shaped anti-tilting baffle proposed in this invention. Figure 4 This is a schematic diagram of the assembly structure of the load-bearing chain plate, the material-bearing base plate, the telescopic reset support assembly, and the L-shaped anti-tilting retainer proposed in this invention. Figure 5 This is an exploded structural diagram of the load-bearing chain plate, the material-bearing base plate, the telescopic reset support assembly, and the L-shaped anti-tilting material component proposed in this invention; Figure 6 This is a schematic diagram of the internal structure of the telescopic reset support assembly proposed in this invention; Figure 7 This is a front cross-sectional view of the L-shaped anti-tilting baffle proposed in this invention when the material is loaded into the separating material receiving groove and the ballast cover is pressed. Figure 8 This is a front cross-sectional view of the L-shaped anti-tipping baffle proposed in this invention when the L-shaped anti-tipping baffle tends to tip over due to material rolling, eccentric loading, or shift in the center of gravity. Figure 9 This is a cross-sectional view of the L-shaped anti-tilting baffle proposed in this invention when the material forms an anti-tilting support angle due to rolling, eccentric loading, or shift of the center of gravity. Figure 10 This is a schematic diagram of the orthographic structure when the L-shaped anti-tilt retainer and the material-bearing base plate of the downward section form a discharge gap as proposed in this invention.

[0029] In the picture: 100. Conveyor chain assembly; 200. Load-bearing chain plate; 201. Chain plate movement clearance; 202. Positioning pin; 300. Material support base plate; 400. L-shaped anti-tilt baffle; 401. Anti-slip baffle; 402. Ballast cover plate; 500. Telescopic reset support assembly; 501. Telescopic sleeve; 502. Telescopic rod; 503. Reset elastic element; 504. Positioning cap; 600. Body; 601. Parallel side panels. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Example 1 Reference Figures 1 to 10 A chain conveyor for raw material processing in steel plants includes a conveyor chain assembly 100, multiple load-bearing chain plates 200, a material-bearing base plate 300, an L-shaped anti-tilt baffle 400, a telescopic reset support assembly 500, and a machine body 600.

[0033] like Figure 2 As shown, the conveyor chain assembly 100 drives the carrier chain plates 200 in a cyclical operation. Multiple carrier chain plates 200 are arranged sequentially along the running direction of the conveyor chain assembly 100, with a chain plate movement gap 201 formed between adjacent carrier chain plates 200. The chain plate movement gap 201 provides space for the carrier chain plates 200 to move around the sprockets, pass through the curved transition section between the horizontal and inclined sections, or undergo relative angle changes during cyclic operation as they move with the conveyor chain assembly 100.

[0034] In this embodiment, the load-bearing chain plate 200 is preferably a thickened chain plate used to support granular raw materials from steel mills. Since granular raw materials from steel mills typically have characteristics such as high unit mass, high hardness, and strong impact resistance, such as pellets, granular sinter, coke, limestone particles, dolomite particles, return ore, or steel slag, the load-bearing chain plate 200 needs to possess high load-bearing strength. When the thickness of the load-bearing chain plate 200 is increased or a reinforced structure is adopted, a relatively large chain plate movement gap 201 needs to be reserved between adjacent load-bearing chain plates 200 when it passes around the sprocket or through a curved transition section to avoid interference between adjacent load-bearing chain plates 200. Figure 2 , Figure 3As shown, although the chain plate movement gap 201 can ensure that the carrying chain plate 200 can turn and transition smoothly, if it is not blocked, fine particles, fragments or powder mixtures can easily leak from the chain plate movement gap 201 into the conveyor chain assembly 100, sprockets or other internal moving parts, causing jamming, wear and difficulty in cleaning and maintenance.

[0035] like Figure 4 , Figure 5 As shown, the material-bearing base plate 300 is disposed on the material-bearing chain plate 200 to form a material-bearing surface that directly supports the material. An L-shaped anti-tilt baffle 400 is movably disposed on the material-bearing base plate 300. The L-shaped anti-tilt baffle 400 includes an anti-slip baffle 401 and a ballast cover 402 connected to each other. The anti-slip baffle 401 extends upward relative to the material-bearing base plate 300 to prevent material from sliding down the material-bearing base plate 300 during inclined conveying. The ballast cover 402 can at least partially conform to the material-bearing base plate 300 and cover the chain plate movement gap 201. Therefore, the ballast cover 402 not only participates in bearing the weight of the material as part of the L-shaped anti-tilt baffle 400, but also blocks the chain plate movement gap 201, reducing material leakage into the chain plate movement gap 201.

[0036] like Figure 7 , Figure 8 , Figure 9 As shown, the telescopic reset support assembly 500 is connected between the material-bearing base plate 300 and the L-shaped anti-tilt baffle 400, and is used to apply a reset or support function to the L-shaped anti-tilt baffle 400. When the L-shaped anti-tilt baffle 400 slides relative to the material-bearing base plate 300, the telescopic reset support assembly 500 can telescopically deform, causing the side of the ballast cover plate 402 near the anti-slip baffle 401 to move away from the material-bearing base plate 300, thereby forming an anti-tilt support angle between the ballast cover plate 402 and the material-bearing base plate 300. This anti-tilt support angle is used to limit the L-shaped anti-tilt baffle 400 from continuing to tip over and prevent material from crossing the anti-slip baffle 401 and slipping.

[0037] like Figure 1 As shown, the machine body 600 supports the conveyor chain assembly 100, the bearing chain plate 200, and related conveying components. The conveyor chain assembly 100 may include two parallel conveyor chains, with the two ends of the bearing chain plate 200 respectively mounted on the two conveyor chains. Two sets of parallel side plates 601 are provided on the machine body 600, extending along the running direction of the conveyor chain assembly 100. The bearing chain plate 200, the material-bearing base plate 300, and the L-shaped anti-tilt baffle 400 are all located between the two sets of parallel side plates 601, and the L-shaped anti-tilt baffle 400 can move between the two sets of parallel side plates 601 along with the conveyor chain assembly 100. The two sets of parallel side plates 601 are used to laterally limit the material on the material-bearing base plate 300, reducing material spillage from both sides of the conveying path.

[0038] The raw materials used in steel mills in this embodiment may include one or more of the following: ore pellets, granular sinter, coke, limestone particles, dolomite particles, recycled ore, or steel slag. These materials can be in block, granular, or mixed block-granular form, and are particularly suitable for steel mill raw materials with certain rolling properties, eccentric loading, or impact resistance.

[0039] Through the above structure, the L-shaped anti-tilt baffle 400 simultaneously functions as an anti-slip material stop, ballast stabilizer, and chain plate clearance cover. Compared with a simple fixed baffle, the L-shaped anti-tilt baffle 400 in this embodiment not only prevents materials from sliding down the inclined conveyor section, but also covers the chain plate clearance 201 with the ballast cover 402, and forms an anti-tilt support angle in conjunction with the telescopic reset support assembly 500 under special stress conditions, thereby improving the operational stability of the chain conveyor.

[0040] Example 2 like Figure 2 As shown, based on Embodiment 1, the anti-slip baffle 401 divides the bearing area on the material-bearing base plate 300 into multiple partitioned material-bearing grooves. These partitioned material-bearing grooves are used to hold granular raw materials from steel mills. A partitioned material-bearing groove can be formed between adjacent L-shaped anti-tipping baffles 400.

[0041] like Figure 7 As shown, the ballast cover 402 is located in the bottom bearing area of ​​the partitioned material receiving trough. When material is loaded into the partitioned material receiving trough, the weight of the material acts on the ballast cover 402, causing the ballast cover 402 to press against the material receiving bottom plate 300 and cover the chain plate movement gap 201. At this time, the ballast cover 402 not only serves as a cover structure to prevent material leakage, but also as a ballast structure to bear the weight of the material.

[0042] Reference Figure 7 When material is loaded into the separating receiving trough and the ballast cover 402 is pressed down, the ballast cover 402 is at least partially attached to the receiving base plate 300. The ballast cover 402 extends above the chain plate movement gap 201, thereby blocking the chain plate movement gap 201. Due to the weight of the material, the state of the ballast cover 402 in contact with the receiving base plate 300 and covering the chain plate movement gap 201 is more stable, which can reduce the entry of fine materials, fragments or powdery materials from the chain plate movement gap 201 into the area below the bearing chain plate 200 or into the interior of the conveyor chain assembly 100.

[0043] During the inclined conveying process, the material tends to slide down the bottom plate 300 under the action of gravity. The anti-slip baffle 401 is used to block the material. Since the ballast cover 402 and the anti-slip baffle 401 are connected to form an L-shaped structure, the downward pressure of the material on the ballast cover 402 can improve the overall posture stability of the L-shaped anti-tilt baffle 400, making the anti-slip baffle 401 less likely to be pushed over by the material in the downward direction.

[0044] In other words, under normal conveying conditions, the weight of the material is not only borne by the base plate 300 and the load-bearing chain plate 200, but also acts on the L-shaped anti-tilt baffle 400 through the ballast cover plate 402, giving the L-shaped anti-tilt baffle 400 a self-pressurizing effect. This self-pressurizing effect gives the anti-slip baffle 401 a higher posture-maintaining ability when preventing the material from sliding down.

[0045] Reference Figure 8 When the material exerts a component force F2 on the anti-slip baffle 401 along the downward direction of the supporting base plate 300, the L-shaped anti-tilt baffle 400 can slide relative to the supporting base plate 300 to a certain extent, and the telescopic reset support assembly 500 will subsequently expand and contract. At this time, the telescopic reset support assembly 500 applies a reset or pressing action to the L-shaped anti-tilt baffle 400, so that the material component force F2 and the pressing force of the telescopic reset support assembly 500 gradually reach equilibrium. In this equilibrium state, the ballast cover 402 still tends to adhere to the supporting base plate 300, thereby continuing to cover the chain plate movement gap 201 and maintaining the material blocking stability of the anti-slip baffle 401.

[0046] Through the above configuration, the ballast cover 402 in this embodiment has at least three functions: First, the ballast cover 402 can cover the chain plate movement gap 201, reducing material leakage; second, the ballast cover 402 can bear the weight of the material, enabling the L-shaped anti-tilt baffle 400 to achieve a self-pressurizing and stabilizing effect; third, the ballast cover 402 can form a support angle in the subsequent anti-tilt state, providing an anti-tilt support foundation for the L-shaped anti-tilt baffle 400. Therefore, the ballast cover 402 is not a simple cover structure, but a composite structure that combines the functions of preventing material leakage, self-pressurizing, and anti-tilt support.

[0047] Example 3 Based on Embodiment 1 or Embodiment 2, when the material in the separating material receiving trough exerts a large pushing force on the anti-slip baffle 401 due to rolling, eccentric loading or center of gravity shift, the L-shaped anti-tilting baffle 400 can slide further relative to the material receiving base plate 300 and form an anti-tilting support angle under the action of the telescopic reset support assembly 500.

[0048] Specifically, such as Figure 8As shown, during the inclined conveying of granular raw materials in a steel plant, the material is not always stably and uniformly distributed on the ballast cover plate 402 and the bottom plate 300. For example, materials such as pellets, granular sinter, steel slag, or limestone particles have a certain degree of rolling; materials such as coke, steel slag, or lumpy limestone may have irregular shapes and localized uneven loading; when the equipment vibrates, the material impacts, or the conveying angle changes, the center of gravity of the material in the separating receiving trough may shift towards the anti-slip baffle 401. At this time, the pushing force of the material on the anti-slip baffle 401 increases significantly, and this pushing force will cause the L-shaped anti-tipping baffle 400 to continue to tilt.

[0049] As the aforementioned component force F2 increases, the L-shaped anti-tilt baffle 400 slides further relative to the supporting base plate 300. The telescopic reset support assembly 500 undergoes further telescopic deformation as the L-shaped anti-tilt baffle 400 slides, causing the side of the ballast cover 402 closest to the anti-slip baffle 401 to move away from the supporting base plate 300. At this time, an anti-tilt support angle is formed between the ballast cover 402 and the supporting base plate 300.

[0050] This anti-tilting support angle changes the ballast cover 402 from its original fitted and covering state to a supporting state. Since the ballast cover 402 and the anti-slip baffle 401 are connected as an L-shaped integral unit, when the ballast cover 402 forms an anti-tilting support angle relative to the material-bearing base plate 300, the ballast cover 402 can help limit the anti-slip baffle 401 from tilting further in the direction of material sliding. In other words, the ballast cover 402 not only covers the chain plate movement gap 201 and bears the weight of the material under normal conditions, but can also be used as an anti-tilting support component under off-center loading or rolling conditions.

[0051] like Figure 6 As shown, the telescopic reset support assembly 500 may include a telescopic sleeve 501, a telescopic rod 502, and a reset elastic element 503. The telescopic rod 502 is telescopically disposed within the telescopic sleeve 501, and the reset elastic element 503 is disposed within the telescopic sleeve 501 and acts on the telescopic rod 502. When the material exerts a pushing force on the anti-slip baffle 401, the L-shaped anti-tilt baffle 400 slides and causes the telescopic rod 502 to extend relative to the telescopic sleeve 501, and the reset elastic element 503 is compressed or undergoes elastic deformation. The reset elastic element 503 applies a reset force to the telescopic rod 502, preventing the L-shaped anti-tilt baffle 400 from freely tipping over under the pushing force of the material, but instead forming controlled sliding and controlled support.

[0052] Furthermore, referring to Figures 4 to 6The supporting chain plate 200 and / or the supporting base plate 300 may have mounting grooves. One end of the telescopic sleeve 501 is located in the mounting groove and is rotatably connected to the groove wall forming the mounting groove. The extended end of the telescopic rod 502 is rotatably connected to the L-shaped anti-tilt stop 400. A positioning pin 202 is provided in the mounting groove of the supporting chain plate 200 to limit the rotation angle of the telescopic sleeve 501. By limiting the rotation angle of the telescopic sleeve 501 by the positioning pin 202, excessive rotation of the telescopic reset support assembly 500 during the stress process can be avoided, thereby ensuring that the anti-tilt support angle is formed within a reasonable range.

[0053] In this embodiment, the telescopic reset support assembly 500 and the L-shaped anti-tilt stop component 400 are not simply in a reset relationship, but rather form a controlled anti-tilt support relationship. For example... Figure 7 As shown, during normal conveying, the reset elastic element 503 causes the L-shaped anti-tilt baffle 400 to tend to conform to the material-bearing base plate 300; as Figure 9 As shown, when the material rolls, is unbalanced, or the center of gravity shifts, the telescopic reset support assembly 500 allows the L-shaped anti-tilt baffle 400 to slide in a controlled manner and form an anti-tilt support angle; when the material condition is restored or the material is discharged, the reset elastic element 503 can reset the telescopic rod 502, thereby restoring the L-shaped anti-tilt baffle 400 to a state of being in contact with or close to being in contact with the material support base plate 300.

[0054] Through the above-described configuration, this embodiment can improve the adaptability of the L-shaped anti-tipping baffle 400 to rolling and eccentrically loaded materials without simply increasing the height or rigidity of the anti-slip baffle 401. When the material force is concentrated on the anti-slip baffle 401, this embodiment can reduce the risk of further tipping by the sliding of the L-shaped anti-tipping baffle 400 and the formation of the anti-tipping support angle, thereby reducing the possibility of materials slipping over the anti-slip baffle 401.

[0055] Example 4 Reference Figure 10 Based on any one of Embodiments 1 to 3, when the material-bearing base plate 300 travels with the conveyor chain assembly 100 to the downhill end or the return section, the telescopic reset support assembly 500 can rotate relative to the mounting groove and change the support posture of the L-shaped anti-tilt baffle 400, so that a discharge gap is formed between the ballast cover plate 402 and the material-bearing base plate 300. The discharge gap is used to discharge materials stuck between the ballast cover plate 402 and the material-bearing base plate 300 or at the chain plate movement gap 201.

[0056] like Figure 7As shown, during the upward conveying process, the reset elastic element 503 causes the telescopic rod 502 to tend to retract, and the telescopic rod 502 applies pressure or reset action to the L-shaped anti-tilt baffle 400, keeping the ballast cover 402 in contact with the material-bearing base plate 300. This state helps the ballast cover 402 to cover the chain plate movement gap 201 and reduces material leakage into the chain plate movement gap 201.

[0057] However, during long-term conveying, a small amount of fine material, powder, or obstructions may still enter between the ballast cover 402 and the material support plate 300, or near the chain plate movement gap 201. If these residual materials are always pressed down by the ballast cover 402 and are not easily discharged, they may cause wear, jamming, or increased movement resistance in subsequent operation.

[0058] To address the aforementioned issues, this embodiment enables the telescopic reset support assembly 500 to rotate relative to the mounting groove at the downward or return end. As the material-bearing base plate 300 moves with the conveyor chain assembly 100 to the downward or return end, its posture changes relative to the upward bearing section, and the L-shaped anti-tilt baffle 400 also changes from a bearing state to a non-bearing state. At this time, the telescopic reset support assembly 500 rotates relative to the mounting groove, changing its support direction and position on the L-shaped anti-tilt baffle 400, thus creating a discharge gap between the ballast cover plate 402 and the material-bearing base plate 300.

[0059] The discharge gap allows fine materials stuck between the ballast cover plate 402 and the material bearing base plate 300 to be released from the compressed state and discharged outwards. It also allows residual materials near the chain plate movement gap 201 to have a release space, thereby reducing the situation where residual materials are repeatedly trapped, squeezed, or worn by internal moving parts in the return section.

[0060] Reference Figure 6 The end of the telescopic sleeve 501 is threaded with a positioning cap 504. The reset elastic element 503 is preferably a reset spring, which presses against the telescopic rod 502, so that the end of the telescopic rod 502 contacts the positioning cap 504. By adjusting the position of the positioning cap 504 relative to the telescopic sleeve 501, the exposed length of the extended end of the telescopic rod 502 can be adjusted.

[0061] It should be noted that the exposed length of the extended end of the telescopic rod 502 can affect two working states of the L-shaped anti-tilt stop component 400. Firstly, as... Figure 7 , Figure 8As shown, during the upward inclined conveying process, the telescopic rod 502 can be kept at a certain exposed length by adjusting the positioning cap 504, so that a small initial angle is formed between the ballast cover plate 402 and the material bearing base plate 300 in advance. This reduces the contact friction between the ballast cover plate 402 and the material bearing base plate 300, making it easier for the L-shaped anti-tilt baffle 400 to slide relative to the material bearing base plate 300 when subjected to the pushing force of the material, and providing a margin of motion for the subsequent formation of the anti-tilt support angle. Secondly, as Figure 10 As shown, when the exposed length of the extended end of the telescopic rod 502 changes during the downhill or return section, the support position of the telescopic reset support assembly 500 after rotation changes accordingly, thereby adjusting the size of the discharge gap formed between the ballast cover plate 402 and the material bearing base plate 300.

[0062] Therefore, the positioning cap 504 is not only used to adjust the initial position or reset state of the telescopic rod 502, but also to adjust the size of the discharge gap. Through this adjustment structure, the anti-tilting capability and discharge capability of the L-shaped anti-tilting baffle 400 can be adapted and adjusted according to the particle size, weight, rolling properties, powder content, and conveying angle of the granular raw materials from different steel mills.

[0063] Through the structure of this embodiment, the chain conveyor can cover the chain plate movement gap 201 with the ballast cover plate 402 in the upward bearing section and improve the stability of the anti-slip baffle 401. It can form an anti-tipping support angle under eccentric load or rolling conditions, and can form a discharge gap in the downward end or return section to discharge residual materials, thereby achieving the synergistic effect of preventing leakage, preventing tipping and self-discharging.

[0064] Working principle In use, the conveyor chain assembly 100 drives multiple bearing chain plates 200 to circulate, and the material-bearing base plate 300 moves synchronously with the bearing chain plates 200. After the material enters the separating material-bearing trough, the weight of the material acts on the ballast cover plate 402, causing the ballast cover plate 402 to press against the material-bearing base plate 300 and cover the chain plate movement gap 201, thereby reducing material leakage and wear and tear on internal moving parts.

[0065] When the material support plate 300 enters the inclined conveyor section, the material tends to slide down along the material support plate 300, and the anti-slip baffle 401 blocks the material. If the material rolls, is unbalanced, or its center of gravity shifts, the pushing force on the anti-slip baffle 401 increases, the L-shaped anti-tilt baffle 400 slides relative to the material support plate 300, and the telescopic reset support assembly 500 extends and retracts, causing the side of the ballast cover plate 402 closest to the anti-slip baffle 401 to move away from the material support plate 300, forming an anti-tilt support angle to limit the L-shaped anti-tilt baffle 400 from continuing to tip over.

[0066] After the material is discharged, the reset elastic element 503 drives the telescopic rod 502 to reset, causing the L-shaped anti-tilt baffle 400 to return to a state of contact or near contact with the material-bearing base plate 300. When the material-bearing base plate 300 travels to the downward or return section, the telescopic reset support assembly 500 can rotate relative to the mounting groove, creating a discharge gap between the ballast cover plate 402 and the material-bearing base plate 300 to discharge residual or jammed material. By adjusting the positioning cap 504, the exposed length of the telescopic rod 502 can be adjusted to adapt to different conveying angles and material conditions.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A chain conveyor device for raw material processing in steel plants, characterized in that, include: Conveyor chain assembly (100); Multiple carrier chain plates (200) are arranged sequentially along the running direction of the conveyor chain assembly (100), and a chain plate movement gap (201) is formed between two adjacent carrier chain plates (200). A material-bearing base plate (300) is disposed on the load-bearing chain plate (200); L-shaped anti-tilt baffle (400) is movably mounted on the material support base plate (300). The L-shaped anti-tilt baffle (400) includes an anti-slip baffle (401) and a ballast cover plate (402) connected to each other. The anti-slip baffle (401) extends upward relative to the material support base plate (300). The ballast cover plate (402) can at least partially fit against the material support base plate (300) and cover the chain plate movement gap (201). Telescopic reset support assembly (500), the telescopic reset support assembly (500) is connected between the material support base plate (300) and the L-shaped anti-tilt material (400); The L-shaped anti-tilt baffle (400) can slide relative to the base plate (300), and under the telescopic action of the telescopic reset support assembly (500), the side of the ballast cover (402) near the anti-slip baffle (401) moves away from the base plate (300), so as to form an anti-tilt support angle between the ballast cover (402) and the base plate (300) to limit the L-shaped anti-tilt baffle (400) from continuing to tilt.

2. The chain conveyor device for raw material processing in steel plants according to claim 1, characterized in that: The bearing chain plate (200) is a thickened chain plate used to support the bulk and granular raw materials of the steel plant. The chain plate movement gap (201) is used to provide movement clearance space for the bearing chain plate (200) as it passes around the sprocket or through the curved transition section with the conveyor chain assembly (100). The ballast cover plate (402) extends above the chain plate movement gap (201) to cover the chain plate movement gap (201).

3. The chain conveyor device for raw material processing in steel plants according to claim 1, characterized in that: The anti-slip baffle (401) divides the bearing area on the material bearing base plate (300) into multiple partitioned material bearing grooves. The ballast cover plate (402) is located in the bottom bearing area of ​​the partitioned material bearing grooves to bear the weight of the material when the material is loaded into the partitioned material bearing grooves, and to press the ballast cover plate (402) against the material bearing base plate (300) and the chain plate movement gap (201).

4. A chain conveyor device for raw material processing in a steel plant according to claim 3, characterized in that: When the material in the separating material receiving groove exerts a component force on the anti-slip baffle (401) in the direction of sliding down the material receiving base plate (300), the L-shaped anti-tilt baffle (400) slides relative to the material receiving base plate (300), and causes the telescopic reset support assembly (500) to undergo telescopic deformation; when the material increases the component force due to rolling, off-center loading or center of gravity shift, the L-shaped anti-tilt baffle (400) slides further, and forms the anti-tilt support angle under the action of the telescopic reset support assembly (500).

5. A chain conveyor device for raw material processing in a steel plant according to claim 1, characterized in that: The telescopic reset support assembly (500) includes a telescopic sleeve (501), a telescopic rod (502), and a reset elastic element (503). The telescopic rod (502) is telescopically disposed within the telescopic sleeve (501), and the reset elastic element (503) is disposed within the telescopic sleeve (501) and acts on the telescopic rod (502).

6. A chain conveyor device for raw material processing in a steel plant according to claim 5, characterized in that: The bearing chain plate (200) and / or the material bearing base plate (300) are provided with mounting grooves. One end of the telescopic sleeve (501) is located in the mounting groove and is rotatably connected to the material bearing base plate (300). The extended end of the telescopic rod (502) is rotatably connected to the L-shaped anti-tilt material component (400). The mounting groove is provided with a positioning pin (202) for limiting the rotation angle of the telescopic sleeve (501).

7. A chain conveyor device for raw material processing in a steel plant according to claim 6, characterized in that: When the material support plate (300) runs with the conveyor chain assembly (100) to the downhill end or the return section, the telescopic reset support assembly (500) can rotate relative to the mounting groove and change the support posture of the L-shaped anti-tilt material component (400) so that a discharge gap is formed between the ballast cover plate (402) and the material support plate (300). The discharge gap is used to discharge the material stuck between the ballast cover plate (402) and the material support plate (300) or at the chain plate movement gap (201).

8. A chain conveyor for raw material processing in a steel plant according to claim 7, characterized in that: The end of the telescopic sleeve (501) is threaded with a positioning cap (504), and the reset elastic element (503) is a reset spring. The reset spring abuts against the telescopic rod (502) so that the end of the telescopic rod (502) contacts the positioning cap (504). By adjusting the position of the positioning cap (504) relative to the telescopic sleeve (501), the exposed length of the extended end of the telescopic rod (502) is adjusted to adjust the initial included angle and the size of the discharge gap between the ballast cover plate (402) and the material bearing base plate (300).

9. A chain conveyor for raw material processing in a steel plant according to claim 1, characterized in that: The chain conveyor includes a body (600), and the conveyor chain assembly (100) includes two parallel conveyor chains. The two ends of the bearing chain plate (200) are respectively installed on the two conveyor chains. The body (600) is provided with two sets of parallel side plates (601). The two sets of parallel side plates (601) extend along the running direction of the conveyor chain assembly (100). The bearing chain plate (200), the material support plate (300), and the L-shaped anti-tilt material component (400) are all located between the two sets of parallel side plates (601). The L-shaped anti-tilt material component (400) can run between the two sets of parallel side plates (601) with the conveyor chain assembly (100). The two sets of parallel side plates (601) are used to laterally limit the material on the material support plate (300).

10. A chain conveyor device for raw material processing in a steel plant according to claim 1, characterized in that: The raw materials used in the steel plant include one or more of the following: ore pellets, granular sinter, coke, limestone particles, dolomite particles, recycled ore, or steel slag.

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