Discharging chute with buffering function

Abstract

The utility model relates to a discharging chute with a buffering function, and belongs to the technical field of material feeding in the metallurgical industry. According to the technical scheme, the device comprises a flange I (1), buffer plates (4), square boxes (5), a flange II (6) and a material pipe (7), the flange I (1) is welded to the upper end of the material pipe (7), the flange II (6) is welded to the lower end of the material pipe (7), the flange I (1) and the flange II (6) are connected together through a plurality of bolts, the buffer plates (4) are alternately arranged on the inner wall of the material pipe (7) in the discharging direction, and the square boxes (5) are welded to the positions, corresponding to the buffer plates (4), of the outer wall of the material pipe (7). Compared with the prior art, the utility model has the beneficial effects of reasonable structure, firmness, durability and strong practicability, is applied to a converter blanking system, greatly reduces the occurrence of material leakage of the blanking system, effectively ensures the accuracy of each component of molten steel, reduces the occurrence of converter production accidents, and improves the production stability of the converter.

Description

Technical Field

[0001] This utility model relates to a material feeding chute with a buffer function, belonging to the field of material feeding technology in the metallurgical industry. Background Technology

[0002] Material conveying, as a crucial component of the steel smelting process, directly impacts the normal production of steel enterprises. During material feeding, the material undergoes parabolic motion, and the cylinder wall of the feed chute, subjected to prolonged impact, will experience wear and cracking. Damage can lead to accidents such as material leakage and smoke. Material leakage can also alter the composition of molten steel, resulting in scrap and frequently requiring furnace shutdowns for repair. Furthermore, the cylinder wall thins due to continuous impact, making repairs time-consuming and labor-intensive, severely affecting production rhythm and output. Therefore, designing a robust and durable material feeding chute is of paramount importance. Utility Model Content

[0003] The purpose of this invention is to provide a feeding chute with a buffer function, which can effectively improve the service life of the feeding pipe, improve the stability of the feeding system, reduce the occurrence of accidents, ensure the stability of steelmaking production, and solve the problems existing in the background technology.

[0004] The technical solution of this utility model is:

[0005] A material chute with a buffer function includes flange I, buffer plates, a square box, flange II, and a material pipe. Flange I is welded to the upper end of the material pipe, and flange II is welded to the lower end of the material pipe. Flange I and flange II are connected together by several bolts. Several buffer plates are alternately arranged on the inner wall of the material pipe along the material discharge direction. A square box is welded to the outer wall of the material pipe corresponding to each buffer plate.

[0006] The buffer plate is inclined downwards along the direction of material flow.

[0007] The buffer plate is inclined downward at an angle of 45° along the material flow direction.

[0008] Several bolt holes are evenly arranged around the circumference of flange I and flange II.

[0009] The flange I is also provided with a groove in the circumferential direction, and the groove is located on the inner ring of the bolt hole.

[0010] The groove in the circumferential direction of flange I is filled with high-temperature resistant packing.

[0011] The beneficial effects of this utility model are: the connecting flange I of this device has a groove, and the groove is filled with packing to ensure sealing. The use of a buffer plate and a square box for double protection greatly improves the service life of the feeding chute, reduces the accident rate, and ensures stable production of the converter. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the present invention;

[0014] Figure 3 This is a schematic diagram of the usage state of this utility model;

[0015] In the diagram: Flange I 1, Groove 2, Bolt hole 3, Buffer plate 4, Square box 5, Flange II 6, Material pipe 7. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and examples.

[0017] See attached document Figure 1-3 A material chute with a buffer function includes a flange I1, a buffer plate 4, a square box 5, a flange II6 and a material pipe 7. The upper end of the material pipe 7 is welded with flange I1, and the lower end of the material pipe 7 is welded with flange II6. Flange I1 and flange II6 are connected together by several bolts. Several buffer plates 4 are alternately arranged on the inner wall of the material pipe 7 along the material discharge direction. A square box 5 is welded to the outer wall of the material pipe 7 corresponding to each buffer plate 4.

[0018] In this embodiment, a groove 2 is provided in the circumferential direction of flange I1, and the groove 2 is filled with high-temperature resistant packing for sealing; the groove 2 is located in the inner ring of bolt hole 3, which increases the sealing performance and prevents powdery materials from leaking out through the bolt hole gap;

[0019] Both the buffer plate 4 and the feed pipe 7 are made of wear-resistant and high-temperature resistant high manganese steel. The buffer plate 4 is alternately arranged inside the feed pipe 7 to reduce the impact and wear of the material on the feed pipe 7. The buffer plate 4 is inclined downward along the material flow direction, and the angle between it and the feed pipe 7 is 45°.

[0020] The square box 5 is welded to the outer wall of the material pipe 7, and is located at the upper part of the arc where the buffer plate 4 intersects with the material pipe 7. Its function is that after the material pipe 7 is damaged, the material is retained in the square box 5, and the newly poured material will impact the material stored in the square box 5. The stored material is in block form and has a buffering effect.

[0021] The method of using this utility model is as follows:

[0022] See attached document Figure 3The upper end of the feeding chute is connected to the weighing hopper, and the lower end is connected to the moving section. Several sections of the chute are assembled into a feeding pipe. During assembly, it should be noted that the buffer plates of adjacent sections of the feeding chute should be alternately symmetrical, with the flange face at the grooved end located at the upper end to facilitate the installation of the sealing packing. The flange face is evenly tightened with bolts. The material is stored in a high-level silo and fed into the weighing hopper by a vibrating feeder. When the converter smelting reaches a certain level and material needs to be added, the conical valve is opened, and the material is added into the converter through the feeding chute. During the feeding process, the material is gradually decelerated by the buffer plates on both sides of the feeding chute, reducing the impact on the feeding chute pipe wall. In feeding chutes with long service life, the upper part of the buffer plate will wear and thin, and the material will leak into the square box. Due to the storage function of the square box, the subsequent material directly impacts the material stored in the square box. The material is generally granular, and the material stored in the square box can effectively buffer the impact of the subsequent material. With the dual measures of the buffer plate and the square box, the service life of the feeding chute is greatly improved.

[0023] This device has a reasonable structure, is sturdy and durable, and is highly practical. It increases the service life of the converter feeding chute, reduces the accident rate of the feeding system, ensures the stable production of the converter equipment, effectively reduces the consumption of materials and maintenance manpower caused by equipment damage, and also reduces environmental pollution.

Claims

1. A material discharge chute with a buffer function, characterized in that: It includes flange I (1), buffer plate (4), square box (5), flange II (6) and material pipe (7). Flange I (1) is welded to the upper end of material pipe (7), and flange II (6) is welded to the lower end of material pipe (7). Flange I (1) and flange II (6) are connected together by several bolts. Several buffer plates (4) are alternately arranged on the inner wall of material pipe (7) along the feeding direction. A square box (5) is welded to the outer wall of material pipe (7) corresponding to each buffer plate (4).

2. The blanking chute with buffering function according to claim 1, characterized in that: The buffer plate (4) is inclined downward along the material flow direction.

3. The blanking chute with buffering function according to claim 2, characterized in that: The buffer plate (4) is inclined downward at an angle of 45° along the material flow direction.

4. The blanking chute with buffering function according to claim 1, characterized in that: Several bolt holes (3) are evenly arranged in the circumferential direction of flange I (1) and flange II (6).

5. The buffer-equipped downcomer according to claim 4, characterized by: The flange I (1) is also provided with a groove (2) in the circumferential direction, and the groove (2) is located in the inner ring of the bolt hole (3).

6. The blanking chute with buffering function according to claim 5, characterized in that: The groove (2) in the circumferential direction of the flange I (1) is filled with high-temperature resistant packing.

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