A sintering machine material guiding box

Abstract

This utility model provides a sintering machine guide box, belonging to the technical field of sintering machines. It solves the problem of easy wear on the cavity walls of the support plate in existing sintering machine guide boxes. This sintering machine guide box includes: a support frame; a support plate, fixedly connected to the support frame at a certain angle and located below the guide, the surface of the support plate having multiple cavities, with a common cavity wall between any two adjacent cavities; and multiple U-shaped protective blocks inserted into the cavity walls of each cavity. The lengths of the two side walls of the opening end of the U-shaped protective blocks inserted into the cavity walls along the guide direction are inconsistent, while the lengths of the two side walls of the opening end of the U-shaped protective blocks inserted into the cavity walls along the horizontal direction are consistent. Only the row of U-shaped protective blocks located at the top of the support plate in the horizontally arranged cavity walls has these blocks. This utility model has the advantages of improving wear resistance and maintenance efficiency, and extending the service life of the guide box.

Description

Technical Field

[0001] This utility model relates to the technical field of sintering machine equipment, specifically to a sintering machine feed box. Background Technology

[0002] The sintering machine feed box is a key piece of equipment in sintering production. It is installed between the tail star wheel and the grate of the single-tooth roller crusher. It is mainly used to receive the sintered ore that falls from the tail trolley of the sintering machine and, after buffering, guide it into the crushing chamber of the single-tooth roller and the grate for crushing.

[0003] The existing feed box structure mainly includes a support frame (including a bottom support, a middle support, and an upper support), a support plate, left and right wall panels, diagonal braces, storage compartments, and solid square steel components. The support plate is fixed to the support frame at a certain angle to receive and guide the material as it slides down. Its surface has multiple concave storage compartments for storing material, creating a "material-on-material" effect to reduce the impact and wear of the sintered ore on the middle support plate.

[0004] However, the existing structure has the following problems:

[0005] The concave wall of the storage compartment is in direct contact with the material and is subject to long-term impact and friction from the sintered ore, which can easily cause wear and affect the stability of the material flow.

[0006] The storage compartments are mostly made of ordinary Q345 material, which has poor wear resistance. The sintered ore is in large chunks (weighing up to 10 tons), with a temperature as high as 800-1000℃, and falls directly from a height of 5m, causing continuous and severe impact wear on the storage compartment cavity. After wear, frequent shutdowns for welding repairs are required, but welding is difficult to fully restore the original strength, and the maintenance workload is large and the cost is high, resulting in a shortened overall lifespan of the feed box. Utility Model Content

[0007] The purpose of this utility model is to provide a sintering machine feed box to solve the problem that the concave cavity wall of the support plate of the existing sintering machine feed box is in direct contact with the material, and is prone to wear due to long-term impact and friction of sintered ore, and is complicated to maintain and operate.

[0008] This utility model can be achieved through the following technical solutions:

[0009] A sintering machine feed box, characterized in that it comprises:

[0010] The support frame serves as the supporting structure for the sintering machine's feed box;

[0011] The support plate is fixedly connected to the support frame at a certain angle and is located below the guide. The surface of the support plate is provided with multiple cavities, and a common cavity wall is provided between any two adjacent cavities.

[0012] Multiple U-shaped protective blocks are inserted into the cavity walls of each cavity, and the two side walls of the open end of the U-shaped protective block are respectively attached to the inner and outer sides of the cavity wall of the corresponding cavity. The lengths of the two side walls of the open end of the U-shaped protective block inserted into the cavity wall of the cavity along the material guiding direction are not the same, while the lengths of the two side walls of the open end of the U-shaped protective block inserted into the cavity wall of the cavity along the horizontal direction are the same. Among the cavity walls of the cavity along the horizontal direction, only the row at the top of the support plate is equipped with U-shaped protective blocks.

[0013] In the aforementioned sintering machine feed box, the concave cavity is arranged in a quadrilateral shape. The concave cavity includes a set of two opposing first cavity walls and a set of two opposing second cavity walls. The two first cavity walls are arranged along the feeding direction, and the two second cavity walls are arranged horizontally. The two first cavity walls and the two second cavity walls are sequentially spliced ​​end to end to form the side of the concave cavity. The U-shaped protective block is divided into a first U-shaped block and a second U-shaped block. The first U-shaped block is inserted into the first cavity wall, and the second U-shaped block is inserted into the second cavity wall on the top row of the support plate.

[0014] In the aforementioned sintering machine feed box, the two sides of the opening end of the first U-shaped block have different lengths, and are divided into a first sidewall and a second sidewall. The opening end of the first U-shaped block facing the feeding direction is the first sidewall, and the opening end of the first U-shaped block facing away from the feeding direction is the second sidewall. The length of the first sidewall is greater than the length of the second sidewall.

[0015] In the aforementioned sintering machine feed box, the length of the first sidewall is greater than half the depth of the corresponding first cavity wall, and the length of the second sidewall is less than half the depth of the corresponding first cavity wall.

[0016] In the aforementioned sintering machine feed box, the wall thickness of the closed end of the first U-shaped block is greater than the wall thickness of either side of the open end of the first U-shaped block.

[0017] In the aforementioned sintering machine feed box, the lengths of both sides of the opening end of the second U-shaped block are consistent.

[0018] In the aforementioned sintering machine feed box, the wall thicknesses on both sides of the open end of the second U-shaped block are inconsistent with the wall thickness of the closed end of the second U-shaped block, and the wall thickness of the closed end of the second U-shaped block is greater than the wall thickness on either side of the open end of the second U-shaped block.

[0019] In the aforementioned sintering machine feed box, the second cavity wall and the second U-shaped block are connected by a fixed structure.

[0020] In the aforementioned sintering machine feed box, the two side walls of the opening end of the second U-shaped block have space to accommodate a fixing structure. The fixing structure includes a first connecting hole respectively provided on both sides of the opening end of the second U-shaped block, and a second connecting hole provided at a corresponding position on the second cavity wall. The connection between the second cavity wall and the second U-shaped block is completed based on the first connecting hole and the second connecting hole and by fasteners.

[0021] In the aforementioned sintering machine feed box, the first connecting hole is countersunk, and the second cavity wall is connected to the corresponding second U-shaped block by three sets of fixing structures, which are arranged side by side.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] Significantly improved wear resistance: The concave sidewall of the support plate directly bears the friction of the material through the U-shaped block. The deep sidewall of the first U-shaped block is in contact with the impact surface of the material, and the second U-shaped block is firmly connected to the second cavity wall of the top row on the support plate, which greatly reduces the wear of the concave cavity wall. Wear-resistant guard 1 and wear-resistant guard 2 are made of highly wear-resistant material, which directly resists the impact of high temperature large sintered ore, extending the service life of the storage grid and support rib plate to more than 2 years.

[0024] Improved ease of maintenance: The first U-shaped block uses a socket connection, and the second U-shaped block uses a bolt connection (counter-hole design). Wear-resistant stop 1 is snapped on and wear-resistant stop 2 is bolted on, both without complicated welding. After wear, it can be quickly disassembled and replaced, reducing downtime for maintenance. Fasteners are hidden in the counter-hole, avoiding bolt loosening or wear caused by material impact, thus reducing maintenance frequency. Attached Figure Description

[0025] Figure 1 This is a front view of a sintering machine feed box according to the present invention;

[0026] Figure 2 This is a side view of a sintering machine feed box according to the present invention;

[0027] Figure 3 This is the front view of the first U-shaped block;

[0028] Figure 4 This is a side view of the first U-shaped block;

[0029] Figure 5 This is the front view of the second U-shaped block;

[0030] Figure 6 This is the side view of the second U-shaped block.

[0031] In the diagram, 10 is the support frame;

[0032] 20. Support plate;

[0033] 30. Cavity; 31. First cavity wall; 32. Second cavity wall;

[0034] 40. First U-shaped block; 41. First sidewall; 42. Second sidewall;

[0035] 50. Second U-shaped block; 51. Countersunk hole. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] like Figures 1 to 6 As shown, the present invention provides a sintering machine feed box, comprising:

[0039] Support frame 10 serves as the support structure for the sintering machine's feed box.

[0040] The support plate 20 is fixedly connected to the support frame 10 at a certain angle and is located below the guide. The surface of the support plate 20 is provided with a plurality of recesses 30, and a common cavity wall is provided between any two adjacent recesses 30.

[0041] Multiple U-shaped protective blocks are inserted into the cavity wall of the concave cavity, and the two side walls of the open end of the U-shaped protective block are respectively attached to the inner and outer sides of the cavity wall of the corresponding concave cavity 30. The lengths of the two side walls of the open end of the U-shaped protective block inserted into the cavity wall of the concave cavity 30 arranged along the material guiding direction are not the same, while the lengths of the two side walls of the open end of the U-shaped protective block inserted into the cavity wall of the concave cavity 30 arranged in the horizontal transverse direction are the same. Among the cavity walls of the concave cavity 30 arranged in the horizontal transverse direction, only the row located at the top of the support plate is provided with U-shaped protective blocks.

[0042] In the sintering machine feed box provided by this utility model, the support frame 10 provides stable support for the overall structure, ensuring the overall stability of the equipment during the feeding process. The support plate 20 is fixed to the support frame 10 at a specific angle, accurately receiving the feed material falling from above. Multiple concave cavities 30 on its surface form a continuous material guiding space through the overlapping design of adjacent cavity walls. This ensures smooth material flow and also utilizes the structure of the concave cavities 30 to store material, creating a "material-discharging" effect. The U-shaped block is closely connected to the cavity walls of each concave cavity 30, directly serving as the force-bearing component in contact with the material. Through its own structure, it concentrates the impact and friction of the material on the U-shaped block, avoiding direct damage to the cavity walls of the concave cavities 30. At the same time, the tight fit between the U-shaped block and the cavity walls ensures the integrity of the structure, improving wear resistance and allowing for convenient replacement after the U-shaped block wears out. This eliminates the need for complex repairs to the main body of the support plate 20, effectively extending the service life of the equipment and reducing maintenance costs.

[0043] Preferably, the cavity 30 is quadrilateral in shape. The cavity 30 includes two opposing first cavity walls 31 and two opposing second cavity walls 32. The two first cavity walls 31 are arranged along the material guiding direction, and the two second cavity walls 32 are arranged horizontally. The two first cavity walls 31 and two second cavity walls 32 are sequentially joined end-to-end to form the side of the cavity 30. The U-shaped protective block is divided into a first U-shaped block 40 and a second U-shaped block 50. The first U-shaped block 40 is inserted into the first cavity wall 31, and the second U-shaped block 50 is inserted into the second cavity wall 32. Only the row of second cavity walls 32 located at the top of the support plate 20 is equipped with the second U-shaped block 50, which can specifically strengthen the initial impact area of ​​the material, concentrate on resisting high loads, reduce material consumption in non-critical areas, lower costs, and not affect the material guiding function. This structure can provide a regular storage space for materials. The cavity wall of the concave cavity 30 is divided into a first cavity wall 31 and a second cavity wall 32. The first cavity wall 31 guides the material on one side and guides it away from the material on the other side, directly bearing the frontal impact when the sinter falls. The two side planes of the second cavity wall 32 are parallel to the direction of material movement, used to guide the material to slide smoothly down the slope of the support plate 20 and avoid lateral deviation. Each concave cavity 30 is equipped with two first cavity walls 31 and two second cavity walls 32. The first cavity wall 31 focuses on resisting vertical impact, while the second cavity wall 32 focuses on constraining the direction of material movement. The combination of the two allows the concave cavity 30 to disperse the impact force through structural design and reduce deformation through the rigid support of the rectangular cross section when receiving high-temperature large sinter. At the same time, this structure facilitates the targeted installation of the first U-shaped block 40 and the second U-shaped block 50. Through the functional partitioning of the cavity walls and the adaptive connection of the U-shaped blocks, the overall wear resistance and maintenance convenience of the guide box are further improved.

[0044] It is worth mentioning that the U-shaped blocks are divided into a first U-shaped block 40 and a second U-shaped block 50. The two are connected in different ways according to the stress characteristics of their respective cavity walls to achieve precise protection of the cavity wall of the concave cavity 30. The first U-shaped block 40 fits into the first cavity wall 31 through its U-shaped opening, and the wrapping property of the U-shaped structure forms a tight fit, which can achieve stable installation without additional fasteners. It can be quickly assembled and can also buffer stress through the fitting gap when subjected to impact. The second U-shaped block 50 is connected to the second cavity wall 32 on the top row of the support plate 20 through fasteners to ensure that it will not be displaced under the lateral friction of materials and to ensure the connection strength.

[0045] Preferably, considering that the first cavity wall 31 directly bears the frontal impact of the material, the two sidewalls of the first U-shaped block 40 are designed with different depths. The first sidewall 41 is deeper than the second sidewall 42, with the depth of the first sidewall 41 being greater than half the depth of the first cavity wall 31, while the depth of the second sidewall 42 is less than half the depth of the first cavity wall 31. This differentiated depth configuration precisely matches the stress characteristics of the first cavity wall 31. Furthermore, the first sidewall 41 is in close contact with the side of the first cavity wall 31 facing the material guide. This design allows the first sidewall 41 to directly resist the main impact force of the sintered ore, concentrating wear on itself and preventing the first cavity wall 31 from being quickly damaged due to direct force. The shallower second sidewall 42 provides auxiliary fixation from the side facing away from the material guide, ensuring that the first U-shaped block 40 is tightly fitted to the first cavity wall 31 and will not detach due to impact. Through the combination of this differentiated structure and connection method, the first U-shaped block 40 and the second U-shaped block 50 can withstand forces in different directions and can be replaced separately after wear, without the need for overall repair of the cavity wall of the concave cavity 30, which greatly reduces the difficulty and cost of maintenance. At the same time, the wear-resistant properties of the U-shaped blocks extend the service life of the equipment.

[0046] It is worth mentioning that the second U-shaped block 50 and the second cavity wall 32 of the top first row on the support plate 20 are detachably connected through connecting holes and bolts. This design takes into account both structural stability and ease of maintenance. Specifically, the second U-shaped block 50 and the second cavity wall 32 are provided with corresponding connecting holes, and are connected by three bolts. The three bolts are linearly and evenly distributed, which can evenly bear the lateral friction force of the material on the second cavity wall 32 along the direction of movement, avoiding connection failure caused by excessive force at a single point, and ensuring that the second U-shaped block 50 remains fixed in position under long-term friction conditions. At the same time, countersunk holes 51 are provided on both outer sides of the connecting holes of the second U-shaped block 50 to accommodate the screw head and nut, so that the fastener is fully embedded in the countersunk holes 51 and flush with the surface of the second U-shaped block 50. This effectively avoids direct impact on the bolt head when the sintered ore falls or slides, prevents the bolt from loosening due to impact or thread wear, and greatly reduces the risk of fastener failure.

[0047] Preferably, the bolt connection method and countersunk hole 51 design of the second U-shaped block 50 significantly improve maintenance efficiency compared to the welded U-shaped blocks in the prior art. After wear, the second U-shaped block 50 can be quickly replaced simply by removing the bolts. In addition, the configuration of 3 bolts ensures connection strength while reducing installation and disassembly time. The concealed design of the countersunk hole 51 further avoids damage to the fasteners from material impact, effectively solving the pain points of frequent maintenance and short lifespan of existing feed boxes.

[0048] Preferably, the wall thickness of the closed end of the first U-shaped block 40 is greater than the wall thickness of both sides (first sidewall 41, second sidewall 42) of the open end of the first U-shaped block 40, while the wall thicknesses on both sides of the open end are the same. Similarly, the wall thickness of the closed end of the second U-shaped block 50 is also greater than the wall thickness of either side of the open end of the second U-shaped block 50, while the wall thicknesses on both sides of the open end are the same. The design of having a thicker closed end than either side of the open end enhances structural rigidity and resists wall thinning caused by long-term friction, as the closed end is a load-bearing part that directly contacts the material guide. The uniform wall thickness on both sides of the open end ensures the fitting accuracy when the second U-shaped block 50 is connected to the second cavity wall 32, complements the stability of the bolted connection, and avoids installation deviations or uneven stress caused by uneven wall thickness of the U-shaped protective block.

[0049] It is worth mentioning that in the sintering machine feed box provided by this utility model, the support frame 10 stably supports the overall structure, the support plate 20 is set at an angle to accurately receive materials, and its surface concave cavity 30 forms a continuous material guiding space through the overlap of adjacent cavity walls, realizing "material-to-material" buffering. The first U-shaped block 40 is sleeved on the first cavity wall 31, and the second U-shaped block 50 is connected to the second cavity wall 32 on the top row of the support plate 20 by bolts. The two have deep and shallow sidewall designs and countersunk hole 51 structures, respectively, to specifically resist material impact and friction, so that the wear of the cavity wall of the concave cavity 30 is concentrated on the U-shaped block component that can be quickly replaced. The overall solution significantly improves wear resistance and maintenance efficiency through structural optimization and modular design, extending the service life of key components of the feed box to more than 2 years, effectively solving the problems of easy wear and complex maintenance of existing equipment.

[0050] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0052] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A sintering machine feed box, characterized in that, include: The support frame serves as the supporting structure for the sintering machine's feed box; The support plate is fixedly connected to the support frame at a certain angle and is located below the guide. The surface of the support plate is provided with multiple cavities, and a common cavity wall is provided between any two adjacent cavities. Multiple U-shaped protective blocks are inserted into the cavity walls of each cavity, and the two side walls of the open end of the U-shaped protective block are respectively attached to the inner and outer sides of the cavity wall of the corresponding cavity. The lengths of the two side walls of the open end of the U-shaped protective block inserted into the cavity wall of the cavity along the material guiding direction are not the same, while the lengths of the two side walls of the open end of the U-shaped protective block inserted into the cavity wall of the cavity along the horizontal direction are the same. Among the cavity walls of the cavity along the horizontal direction, only the row at the top of the support plate is equipped with U-shaped protective blocks.

2. The sintering machine feed box according to claim 1, characterized in that, The cavity is quadrilateral in shape and includes a set of two opposing first cavity walls and a set of two opposing second cavity walls. The two first cavity walls are arranged along the material guiding direction, and the two second cavity walls are arranged horizontally. The two first cavity walls and the two second cavity walls are spliced ​​together end to end at intervals to form the side of the cavity. The U-shaped protective block is divided into a first U-shaped block and a second U-shaped block. The first U-shaped block is inserted into the first cavity wall, and the second U-shaped block is inserted into the second cavity wall on the top row of the support plate.

3. The sintering machine feed box according to claim 2, characterized in that, The two sides of the opening end of the first U-shaped block have different lengths, and are divided into a first sidewall and a second sidewall. The opening end of the first U-shaped block facing the material guiding direction is the first sidewall, and the opening end of the first U-shaped block facing away from the material guiding direction is the second sidewall. The length of the first sidewall is greater than the length of the second sidewall.

4. The sintering machine feed box according to claim 3, characterized in that, The length of the first sidewall is greater than half the depth of the corresponding first cavity wall, and the length of the second sidewall is less than half the depth of the corresponding first cavity wall.

5. The sintering machine feed box according to claim 2, 3, or 4, characterized in that, The wall thickness of the closed end of the first U-shaped block is greater than the wall thickness of either side of the open end of the first U-shaped block.

6. The sintering machine feed box according to claim 2, characterized in that, The lengths of both sides of the opening end of the second U-shaped block are the same.

7. The sintering machine feed box according to claim 2 or 6, characterized in that, The wall thicknesses on both sides of the open end of the second U-shaped block are not the same as the wall thickness of the closed end of the second U-shaped block, and the wall thickness of the closed end of the second U-shaped block is greater than the wall thickness on either side of the open end of the second U-shaped block.

8. The sintering machine feed box according to claim 2, characterized in that, The second cavity wall and the second U-shaped block are connected by a fixed structure.

9. The sintering machine feed box according to claim 8, characterized in that, The two side walls of the opening end of the second U-shaped block have space to accommodate a fixing structure. The fixing structure includes a first connecting hole respectively provided on both sides of the opening end of the second U-shaped block, and a second connecting hole provided at the corresponding position on the second cavity wall. The connection between the second cavity wall and the second U-shaped block is completed based on the first connecting hole and the second connecting hole and by fasteners.

10. The sintering machine feed box according to claim 9, characterized in that, The first connecting hole is countersunk, and the second cavity wall is connected to the corresponding second U-shaped block by three sets of fixing structures, which are arranged side by side.

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