Step type impact-resistant material guide box

Abstract

The utility model provides a step type impact-resistant material guide box which comprises a main support, and a plurality of slide carriages which are transversely and longitudinally arranged in a staggered mode are fixedly arranged on one side of the main support, so that a plurality of cavities are formed in one side of the material guide box. An anchoring part is arranged in each cavity, and the upper portions of the cavities are covered with metal grid plates. The anchoring part and the metal grid plate are arranged in the cavity, and the integrally inclined wear-resistant layer is formed by utilizing an integrated pouring structure, so that the structural strength and the impact resistance of the material guide box are effectively improved; the step part structure is arranged in the middle of the castable layer, a certain amount of sintered ore can be reserved in the early stage of use, lower-layer materials can be fully baked in a high-temperature environment, castable is promoted to gradually reach ideal sintering strength, large-area abrasion in the early stage and natural falling of the step part in follow-up operation are avoided, a new homogeneous wear-resistant working face is formed, overall abrasion tends to be stable, and the service life of the castable is prolonged. The service life of equipment is prolonged, and the maintenance frequency is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of sintering systems, specifically relating to a stepped impact-resistant feed box. Background Technology

[0002] In sintering systems, the feed box is primarily used to guide high-temperature sintered ore from the upper equipment into the lower conveying device or silo in an orderly manner. Its structure must possess excellent high-temperature resistance, impact resistance, and wear resistance to ensure structural stability during high-speed material descent and effectively buffer the impact force of the material, preventing damage to subsequent equipment. As a crucial transitional structure connecting the sintered ore output and the conveying system, the reliability of the feed box directly affects the overall operating efficiency of the sintering system and the frequency of equipment maintenance.

[0003] Currently, traditional feed boxes typically employ a grid-like design, utilizing the sinter itself to fill the grid and create a buffer for material feeding. However, during the descent of high-temperature red ore, the high temperature, hardness, and impact force cause the grid steel plates used in the main body to be subjected to frequent and severe impacts and high-speed wear, making them prone to deformation, breakage, and even detachment, thus compromising the overall structural stability. Over long-term operation, frequent structural damage to the feed box necessitates extensive repairs and welding, increasing maintenance costs and severely impacting the continuous and stable production of the sintering system. Utility Model Content

[0004] This utility model provides a stepped impact-resistant guide box to solve the problems mentioned in the background art, such as the easy deformation, breakage or detachment of the grid steel plate of the existing guide box, and the increased maintenance cost.

[0005] The technical solution adopted by this utility model is: a stepped impact-resistant guide box, including a main support, a plurality of transverse and longitudinally staggered slides are fixedly provided on one side of the main support, so that a plurality of cavities are formed on one side of the guide box; an anchor is provided in each cavity, and a metal mesh plate is covered on the top of the cavity, and the metal mesh plate is fixedly connected to the corresponding slide on all four sides.

[0006] Each cavity is filled with castable material, the upper end of which is higher than the highest point of the cavity and is fused together with the castable material in the adjacent cavity to form an integral inclined castable material layer.

[0007] A stepped section is formed in the middle of the surface of the castable layer, and the upper surface of the stepped section is parallel to the horizontal plane.

[0008] The main support includes a base frame, side support frames, and an inner support frame. The slides are arranged horizontally and vertically on the inner support frame. The side support frames, inner support frames, and base frame are welded in sequence to form a triangular structure. A central support frame is provided between the base frame and the inner support frame.

[0009] Side plates are provided on both sides of the main support and at both ends of all cavities. The height of the side plates is higher than the height of the castable layer, which is designed to prevent materials from falling from both sides of the main support.

[0010] The anchor is a C-shaped steel bar. In the same cavity, some anchors extend upward from the bottom of the cavity, while other anchors are welded to the upper part of the cavity.

[0011] The anchor is fixedly connected to the metal mesh plate.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention effectively improves the structural strength and impact resistance of the feed box by setting anchors and metal mesh plates in the cavity and forming an integral inclined wear-resistant layer using an integrated casting structure. The stepped structure in the middle of the castable layer can retain a certain amount of sintered ore in the early stage of use, which can fully bake the lower material under high temperature environment, so that the castable gradually reaches the ideal sintering strength, avoiding large-area wear in the early stage. In subsequent operation, the stepped part will naturally fall off to form a new homogeneous wear-resistant working surface, and the overall wear tends to be stable, which extends the service life of the equipment and reduces the maintenance frequency. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of the present invention;

[0015] Figure 2 This is a structural connection diagram of a single cavity in this utility model;

[0016] Figure 3 This is a schematic diagram showing the wear of the castable layer of this utility model after 3-4 months of use;

[0017] Figure 4 This is a schematic diagram showing the wear of the castable layer of this utility model after 4-12 months of use;

[0018] Figure 5 This is a schematic diagram showing the wear of the castable layer of this utility model after 24 months of use.

[0019] in:

[0020] 1. Base frame; 2. Side support frame; 3. Middle support frame; 4. Inner support frame; 5. Slide; 6. Cavity; 7. Anchor; 8. Metal mesh plate; 9. Castable layer; 10. Step section. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] As shown in the figure, a stepped impact-resistant feed box includes a main support. Multiple transversely and longitudinally staggered chute plates 5 are fixedly installed on one side of the main support, forming multiple cavities 6 on one side of the feed box. An anchor 7 is installed in each cavity 6, and a metal mesh plate 8 covers the top of the cavity 6. The metal mesh plate 8 is fixedly connected to the corresponding chute plate 5 around its perimeter. In this example, the anchor 7 is a C-shaped steel bar (in other embodiments, the anchor 7 can also be designed as a V-shape or Y-shape, etc.). Within the same cavity 6, some anchor 7 extends upwards from the bottom of the cavity 6, that is, the anchor 7 penetrates the height direction of the cavity 6 from bottom to top. The anchor 7 is fixed to the bottom or side of the cavity 6 by welding. Another part of the anchor 7 is welded to the upper position of the cavity 6, that is, this part of the anchor 7 spans the width direction of the cavity 6 and is fixed to the chute plate 5 by welding, in order to reinforce the castable refractory.

[0023] More specifically, in this example, there are three anchors 7 within a single cavity 6, two of which extend vertically within the cavity 6, and the other is located at the top of the cavity 6. The anchors 7 are made of Q235 steel, and the metal mesh plate 8 is made of 1Cr18Ni9 steel.

[0024] Each cavity 6 is filled with castable material, specifically high-strength ceramic wear-resistant material. The upper end of the castable material is higher than the highest point of the cavity 6 and is integrally fused with the castable material in the adjacent cavity 6 to form an integral inclined castable material layer 9. Specifically, a step 10 is formed in the middle of the surface of the castable material layer 9. The upper surface of the step 10 is parallel to the horizontal plane. The purpose of setting the step 10 is to allow the material to be fully baked and sintered in the early stage of production by retaining an appropriate amount of sintered ore in the step 10 (although baking was carried out in the early stage, the baking time was short, the material layer was thick, and the lower material layer was far from reaching the sintering strength). This structural design is equivalent to using the extra step 10 to protect the formation of the strength of the material layer. After a period of use, the step at the material drop point falls off, and the new material surface formed reaches the design strength through full sintering. At this time, the material wear is normal wear with a small amount of wear. This structural design can effectively protect the sintering machine guide box and extend its service life.

[0025] The main support includes a base frame 1, a side support frame 2, and an inner support frame 4. The slide plate 5 is arranged horizontally and vertically on the inner support frame 4. The side support frame 2, the inner support frame 4, and the base frame 1 are welded in sequence to form a triangular structure. A central support frame 3 is provided between the base frame 1 and the inner support frame 4 to combine with the slide plate 5 to form the entire guide box.

[0026] Side plates are provided on both sides of the main support and at both ends of all cavities 6. The height of the side plates is higher than the height of the casting material layer 9, which is set to prevent materials from falling from both sides of the main support.

[0027] The anchor 7 is fixedly connected to the metal mesh plate 8. Specifically, after the anchor 7 is welded and fixed to the inner cavity side wall, bottom wall or top, it is then connected to the metal mesh plate 8 by welding, making the structure of the metal mesh plate 8 more robust.

[0028] like Figure 1 The diagram shown is a schematic of the completed pourable refractory layer 9, with a stepped section 10 formed on top. Based on actual usage, after 3-4 months of use, as... Figure 3 As shown, since the stepped portion 10 is located in the main material drop area of ​​the sinter, this part will experience preferential wear; after 4 to 12 months of use, such as Figure 4 As shown, the entire surface of the castable refractory layer 9 gradually shows signs of wear; and after 24 months of operation, as... Figure 5 As shown, the wear on the surface of the castable layer 9 is further aggravated. Overall, the feed box requires no maintenance or repair throughout the 24-month operating cycle, exhibiting stable structure and good wear resistance, significantly improving the service life and operational reliability of the equipment. The stepped design allows for the retention of a suitable amount of sintered ore in the stepped area during the initial production phase, forming a stable heat insulation layer. This enables thorough baking and heat treatment of the castable layer within the feed box, particularly compensating for insufficient sintering strength in the lower region during early baking, thus improving the forming quality of the castable layer.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stepped impact-resistant feed box, characterized in that, Includes a main support frame, on one side of which are fixed multiple transverse and longitudinal staggered slides, forming multiple cavities on one side of the feed box; each cavity is equipped with an anchor, and the cavity is covered with a metal mesh plate, which is fixedly connected to the corresponding slide plate around its perimeter. Each cavity is filled with castable material, the upper end of which is higher than the highest point of the cavity and is fused together with the castable material in the adjacent cavity to form an integral inclined castable material layer. A stepped section is formed in the middle of the surface of the castable layer, and the upper surface of the stepped section is parallel to the horizontal plane.

2. The stepped impact-resistant feed box according to claim 1, characterized in that, The main support includes a base frame, side support frames, and an inner support frame. The slide is arranged horizontally and vertically on the inner support frame. The side support frames, inner support frames, and base frame are welded in sequence to form a triangular structure. A central support frame is provided between the base frame and the inner support frame.

3. The stepped impact-resistant feed box according to claim 1, characterized in that, Side plates are provided on both sides of the main support and at both ends of all cavities. The height of the side plates is higher than the height of the castable layer, which is designed to prevent materials from falling from both sides of the main support.

4. The stepped impact-resistant feed box according to claim 1, characterized in that, The anchors are C-shaped steel bars. Within the same cavity, some anchors extend upwards from the bottom of the cavity, while others are welded to the upper part of the cavity.

5. A stepped impact-resistant feed box according to claim 4, characterized in that, The anchors are fixedly connected to the metal mesh plate.

Images