Alloy blanking chute

Abstract

The utility model discloses an alloy blanking chute in the technical field of converter smelting. The alloy discharging chute comprises a vertical section and an inclined section which are connected with each other, the upper end face of a bottom plate of the inclined section is arranged to be in a plane shape, a plurality of grids are fixedly arranged on the upper end face of the bottom plate at one end, connected with the vertical section, of the inclined section, grooves are formed among the grids, and the grids generate a retention effect on descending of small-particle alloy in the grooves along the inclined section. The inclined section chute is adjusted from a cylindrical shape to a plane shape of the upper end face of the bottom plate, and the plurality of grids are arranged on the upper end face of the inclined section bottom plate, so that the grids have a retention effect on small-particle alloy. Small-particle alloy is retained in the grooves between the grids to form a protective layer, that is, a layer of fine materials is laid on the upper surface of the bottom of the end, connected with the vertical section, of the inclined section, and the alloy materials hit the fine materials after passing through the vertical section during blanking every time, so that the impact of the alloy materials on the bottom of the inclined section is reduced, and the service life of the inclined section chute is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of converter smelting, and particularly relates to an alloy feeding chute. Background Art

[0002] In the converter smelting industry, the alloy chute for feeding is one of the widely used devices. Its structure is to roll a 10mm - 12mm steel plate into a circular pipe to convey alloy materials from top to bottom. The chute has the advantages of no need for power, small floor area, the pipeline is sealed and not easy to cause dust leakage, and convenient operation, and is widely used in the smelting field.

[0003] In practice, since the silo or belt conveyor is set at a high position. For example, in the top - blown converter of Panzhihua Steel Vanadium Steelmaking Plant, its belt conveyor is set on the 19.4 - meter platform of the workshop, and the materials transported by the belt need to be fed into the ladle at 0 meters through the chute. In order to avoid problems such as molten steel splashing caused by alloy lumps directly falling into the ladle, which may further lead to safety and equipment accidents. Therefore, in practice, two - section chutes are used to reduce the impact force. The upper section is a vertical section, and the vertical section is connected to an inclined section below. However, since most of the alloy materials are lumpy, and the height of the chute is relatively high, the falling distance of the alloy is large, and the generated impact force will cause the area where the inclined section chute is connected to the vertical section to deform quickly. After being penetrated, it will also cause the problem of material leakage. And because the chute is arranged at a relatively high height, the penetrated parts are basically set between platforms, resulting in a large amount of maintenance work and relatively high safety risks. Content of the Utility Model

[0004] To overcome the problems that the existing alloy feeding chute is easy to be damaged and has a low service life, the utility model provides an alloy feeding chute.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The alloy feeding chute includes a vertical section and an inclined section which are connected to each other. The upper end surface of the bottom plate of the inclined section is set to be planar. A plurality of grid partitions are fixedly arranged on the upper end surface of the bottom plate at one end where the inclined section is connected to the vertical section. The grid partitions are made of materials with wear resistance and good toughness. Grooves are formed between the plurality of grid partitions, and the grid partitions have a retention effect on the downward movement of small - particle alloys in the grooves.

[0007] In this application, the existing inclined - section chute is adjusted from a cylindrical shape to a planar upper end surface of the bottom plate. Further, by arranging a plurality of grid partitions on the upper end surface of the bottom plate of the inclined section, the grid partitions have a retention effect on small - particle alloys. During use, the small - particle alloys are retained in the grooves between the grid partitions to form a protective layer, which is equivalent to laying a layer of fine materials on the upper surface of the bottom at one end where the inclined section is connected to the vertical section. Each time the materials are fed, the alloy materials hit the fine materials after passing through the vertical section, thereby reducing the impact of the alloy materials on the bottom of the inclined section and extending the service life of the inclined - section chute.

[0008] In some embodiments, the setting direction of the grid partition is perpendicular to the length direction of the bottom plate of the inclined section, and the length of the grid partition is consistent with the width of the bottom plate of the inclined section.

[0009] In this embodiment, based on the length direction of the bottom plate of the inclined section, that is, the sliding direction of the material on the inclined section, it is preferably implemented as above. The setting is simple, and a good limiting effect on small-particle alloys can be achieved.

[0010] In some embodiments, the grid partition is made of manganese steel.

[0011] In this embodiment, considering various cost factors comprehensively, the preferred grid partition is made of manganese steel, which is suitable for the harsh working conditions here that need to withstand impact, extrusion, and material wear.

[0012] In some embodiments, a high-temperature resistant rubber sheet is provided on the upper surface of the grid partition.

[0013] In this embodiment, the high-temperature resistant rubber sheet plays a shock-absorbing effect.

[0014] In some embodiments, the inclined section is set as a cylindrical structure with a square cross-section.

[0015] In this embodiment, the inclined section is preferably set as square, which is easy to implement and can meet the requirements of grid partition arrangement.

[0016] In some embodiments, a maintenance hole is provided on one side of the vertical section away from the inclined section below, and a detachable maintenance cover plate is correspondingly connected to the vertical section.

[0017] In this embodiment, by adding a maintenance hole, on the one hand, it is convenient for maintenance work, and on the other hand, if materials accumulate between the vertical section and the inclined section, it is also convenient to apply force to push and handle.

[0018] The beneficial effects of the present utility model are as follows: The inclined section chute is adjusted so that the upper end surface of the bottom plate is flat, and a plurality of grid partitions are provided on the upper end surface of the bottom plate of the inclined section, so that the grid partitions have a retention effect on small-particle alloys. During use, the grooves between the grid partitions retain small-particle alloys to form a protective layer, which is equivalent to laying a layer of fine materials on the upper surface of the bottom of the connection end between the inclined section and the vertical section. Each time materials are fed, the alloy materials hit the fine materials after passing through the vertical section, thereby reducing the impact of the alloy materials on the bottom of the inclined section and extending the service life of the inclined section chute. The alloy material feeding chute provided by this application is not easily damaged, greatly reducing the equipment maintenance workload, and the spare parts are simple to manufacture and convenient to replace, with strong popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a simplified schematic diagram of the overall structure of the alloy material feeding chute provided by the present utility model;

[0020] Figure 2Simplified structural schematic diagram of the vertical section in the alloy blanking chute provided by the present utility model;

[0021] Figure 3 For Figure 2 Simplified structural schematic diagram in the A direction in

[0022] Figure 4 Simplified structural schematic diagram of the inclined section in the alloy blanking chute provided by the present utility model.

[0023] In the figure, the markings are: 1, vertical section; 2, maintenance hole; 3, grid partition; 4, inclined section; 5, maintenance cover plate; 6, bolt. Specific implementation mode

[0024] The present utility model will be further described below with reference to the accompanying drawings.

[0025] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] As Figures 1-4 shown, the present utility model provides an alloy blanking chute.

[0027] The alloy blanking chute includes a vertically connected vertical section 1 and an inclined section 4. The upper end surface of the bottom plate of the inclined section 4 is set to be flat. A plurality of grid partitions 3 are fixedly arranged on the upper end surface of the bottom plate of the inclined section 4 at one end connected to the vertical section 1. The grid partitions 3 are made of materials with wear resistance and good toughness. Grooves are formed between the plurality of grid partitions 3. The grid partitions 3 have a retention effect on the downward movement of small-particle alloys in the grooves along the inclined section 4.

[0028] In this application, the existing inclined section 4 chute is adjusted from a cylindrical shape to a flat upper end surface of the bottom plate. Further, by arranging a plurality of grid partitions 3 on the upper end surface of the bottom plate of the inclined section 4, the grid partitions 3 have a retention effect on small-particle alloys. During use, the small-particle alloys are retained in the grooves between the grid partitions 3 to form a protective layer, which is equivalent to laying a layer of fine material on the upper surface of the bottom of the inclined section 4 at the connection end with the vertical section 1. Each time blanking occurs, the alloy material impacts on the fine material after passing through the vertical section 1, thereby reducing the impact of the alloy material on the bottom of the inclined section 4 and prolonging the service life of the inclined section 4 chute.

[0029] Common materials with wear resistance and good toughness include manganese steel, duplex stainless steel, high-speed steel, metal matrix composites, etc.

[0030] In this embodiment, based on the length direction of the bottom plate of the inclined section 4, that is, the sliding direction of the material on the inclined section 4, preferably, the setting direction of the grid partition 3 is perpendicular to the length direction of the bottom plate of the inclined section 4, and the length of the grid partition 3 is consistent with the width of the bottom plate of the inclined section 4. Implementing in this way is simple and can achieve a good limiting effect on small-particle alloys.

[0031] In this embodiment, considering various cost factors comprehensively, preferably, the grid partition 3 is made of manganese steel, which is suitable for the harsh working conditions here that require bearing impact, extrusion, and material wear.

[0032] In this embodiment, a high-temperature resistant rubber sheet is arranged on the upper surface of the grid partition 3, and the high-temperature resistant rubber sheet has a shock-absorbing effect.

[0033] The high-temperature resistant rubber sheet refers to a rubber product that can maintain its performance and structural stability in a relatively high-temperature environment. Existing technologies often include silicone rubber, fluororubber, nitrile rubber, and ethylene propylene rubber, etc.

[0034] In this embodiment, the inclined section 4 is arranged as a cylindrical structure with a square cross-section, which is easy to implement and can meet the layout requirements of the grid partition 3.

[0035] Obviously, the inclined section 4 being square cylindrical here means that its main structure is square cylindrical. The fact that both of the two chute sections in the aforementioned prior art are cylindrical also refers to the main structure. The connection structure between the vertical section 1 and the inclined section 4 is naturally adjusted according to the shapes of the two to achieve a good seal. And since the inclined section 4 is set in this way, obviously, the vertical section 1 can adopt the existing cylindrical shape, or it can be square or other structures.

[0036] Obviously, Figure 1 and Figure 4 The grid partition 3 shown in [Figure] has a certain angle and thickness. When manufacturing spare parts, first weld and fix the bottom grid partition 3 according to the designed angle, thickness, and interval; after welding, then weld the vertical plates on both sides in the width direction of the bottom plate of the inclined section 4, and finally weld the top cover plate to form a square chute. After welding, let it stand for a period of time and wait for the welding stress to be naturally eliminated before it can be used.

[0037] In this embodiment, a maintenance hole 2 is opened on one side of the lower part of the vertical section 1 away from the inclined section 4, and a detachable maintenance cover plate 5 is correspondingly connected to the vertical section 1. By adding the maintenance hole 2, on the one hand, it is convenient for maintenance work, and on the other hand, if materials accumulate between the vertical section 1 and the inclined section 4, it is also convenient to apply force to push and handle them. As Figure 3 shown, the maintenance cover plate 5 is detachably connected to the vertical section 1 through bolts 6.

[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An alloy material discharge chute, comprising a vertical section (1) and an inclined section (4) connected to each other, characterized in that: The upper end surface of the bottom plate of the inclined section (4) is arranged in a plane shape. A plurality of grid partitions (3) are fixedly arranged on the upper end surface of the bottom plate of the inclined section (4) connected to one end of the vertical section (1). Grooves are formed between the plurality of grid partitions (3). The grid partitions (3) produce a retention effect on small alloy particles in the grooves moving downward along the inclined section (4).

2. The alloy feeding chute according to claim 1, characterized in that: The setting direction of the grille (3) is perpendicular to the length direction of the bottom plate of the inclined section (4), and the length of the grille (3) is consistent with the width of the bottom plate of the inclined section (4).

3. The alloy feeding chute according to claim 1, characterized in that: The grid (3) is made of at least one of manganese steel, duplex stainless steel, high-strength steel, and metal-based composite materials.

4. The alloy feeding chute according to claim 1, characterized in that: The upper surface of the grid (3) is provided with a high temperature resistant rubber, which is one of silicone rubber, fluororubber, nitrile rubber and ethylene propylene rubber.

5. The alloy feeding chute according to claim 1, characterized in that: The inclined section (4) is configured as a cylindrical structure with a square cross section.

6. The alloy feeding chute according to any one of claims 1 to 5, characterized in that: A maintenance hole (2) is provided on a side of the vertical section (1) away from the inclined section (4), and a detachable maintenance cover plate (6) is correspondingly connected to the vertical section (1).

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