Converter feeding device

Abstract

The utility model belongs to the technical field of smelting converter equipment, namely a converter feeding device. A double-oil-cylinder structure is adopted, a large-size oil cylinder is arranged in a frame, and a small-size oil cylinder is connected between the frame and a discharging pipe. A double-oil-cylinder structure is adopted, the full automation degree of the feeding chute is improved to the maximum degree, the movable range of the discharging pipe is widened, and the flexibility and overall benefits of material transportation are improved. Meanwhile, point location is accurate, the feeding position can be accurately controlled, production efficiency is improved, and energy consumption is reduced. And the included angle between the straight-section discharging pipe and the material conveying system can be increased by rotating the discharging pipe, so that collision friction between materials and the discharging pipe due to gravity is reduced in the material conveying process, and the abrasion degree of the inner wall of the chute is reduced. The chute is simple in overall structure, small in occupied space in the working process, easy to operate and convenient to maintain in the subsequent production process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to smelting converter equipment technical field, namely a converter feeding device. BACKGROUND

[0002] In the prior art, the feeding chute commonly used in the past converter is a fixed feeding chute. The fixed feeding chute is usually directly installed above the converter, and the material can be smoothly fed into the converter through certain angle design. In a large converter steelmaking workshop, a fixed low-position bin and a high-position bin can also be used in cooperation, the material is sent to the high-position bin of the converter span through the low-position bin, a belt conveyor or an elevator, and then added to the converter through a vibrating feeder. Meanwhile, some fixed feeding chutes use gravity to design the feeding process, and usually adopt a chute with a large inclination angle to better realize the free falling of the material.

[0003] The material involved in the ferroalloy production process usually has high hardness and abrasiveness, which can cause rapid wear of the inner wall of the chute. In particular, near the centerline position of the lower part of the chute, the wear is particularly serious, which may need to be frequently replaced or repaired, and is not easy to maintain. In addition, uneven particle size or moisture of the material can cause blockage inside the chute, affecting the normal production process, and may cause equipment damage or the need for shutdown cleaning. At the same time, during the feeding process, especially when the material is transported at high speed, dust and other pollutants are generated, and the traditional equipment burns a lot during the production process, and the discharge pipe is easy to form a flue gas leakage. If not properly handled, these pollutants will escape into the air, causing environmental pollution and posing a threat to worker health.

[0004] The main function of the feeding chute is to serve as a channel for the material from the storage or processing area to the converter, ensuring that the material can smoothly enter the smelting area. If the feeding chute can be fully automated, it can improve the material transportation efficiency and reduce the degree of wear of the feeding chute, while reducing the generation of dust and other pollutants, and preventing the material from being blocked during transportation in the chute, which can greatly improve the overall benefits of the material transportation process.

[0005] Therefore, solving the problem of full automation of the feeding chute is a key issue for the converter equipment to improve the overall benefits of the material transportation process. Utility model content

[0006] The utility model aims at the above-mentioned shortage, research and development a kind of converter feeding device, make it more flexible in the material transportation process, to improve the overall effect of material transportation.

[0007] The technical solution of the utility model discloses: a converter feeding device, characterized by including a frame, the frame one end connects large oil cylinder, the frame other end is fixed with the blanking tube support, the blanking tube support is installed with movable blanking tube, small oil cylinder is connected between the frame and blanking tube.

[0008] The above scheme further comprises:

[0009] The blanking tube is divided into four sections, namely, a straight section blanking tube, a slanting blanking tube connected to the front end of the straight section blanking tube, a rear slanting blanking tube connected to the rear end of the straight section blanking tube, and a further rear slanting blanking tube.

[0010] The small oil cylinder is connected between the frame and the straight section blanking tube.

[0011] The tail of the slanting blanking tube is provided with a counterweight device.

[0012] The utility model has the advantages of:

[0013] (1) The double oil cylinder structure maximizes the full automation degree of the feeding chute, enhances the movable range of the blanking tube, and improves the flexibility and overall efficiency of material transportation. At the same time, the position is accurate, and the feeding position can be accurately controlled to improve the production efficiency and reduce the energy consumption. And by rotating the blanking tube, the angle between the straight section blanking tube and the material conveying system can be increased, so that the collision and friction between the material and the blanking tube due to gravity during material conveying are reduced, thereby reducing the wear degree of the inner wall of the chute.

[0014] (2) The four-section blanking tube structure further increases the flexible transportation function of the material while preventing material backflow and reducing the escape of dust and other pollutants generated during material transportation.

[0015] (3) The tail counterweight device greatly reduces the pressure of the oil cylinder maintaining the balance state, and improves the rotation stability and smoothness of the blanking tube. When the feeding chute stops working, it helps the blanking tube to achieve static positioning, reducing the safety hazard.

[0016] (4) The chute has a simple overall structure, occupies a small space during operation, is easy to operate, and is convenient to maintain in the subsequent production process.

[0017] The embodiments of the utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is the structure diagram of the utility model.

[0019] Fig. 2 is the structure diagram of the blanking tube.

[0020] Fig. 3is a schematic diagram of the oblique downward pipe structure. DETAILED DESCRIPTION

[0021] Referring to Figs. 1-3 , the component names are as follows: large oil cylinder 1, safety support 2, oil cylinder support 3, frame 4, small oil cylinder 5, downward pipe support 6, straight downward pipe 7, oblique downward pipe 8, rear oblique downward pipe 9, further rear oblique downward pipe 10, counterweight device 11, small oil cylinder support 12 for downward pipe, feeding chute 13, bearing seat 14, shaft 15, and material conveying system 16.

[0022] Referring to Figs. 1-3 , the feeding device of the converter adopts a double oil cylinder structure. The large oil cylinder 1 is arranged in the frame 4, and the frame 4 is provided with four wheels at the front and rear. The main functions of the frame 4 are to first bear the feeding pipe and the feeding chute 13, secondly to cooperate with the large oil cylinder 1 to realize the horizontal movement of the feeding chute 13, and thirdly to support the downward pipe support 6. The downward pipe is divided into four sections, including the oblique downward pipe 8, the straight downward pipe 7, the rear oblique downward pipe 9, and the further rear oblique downward pipe 10 connected in sequence. The small oil cylinder 5 is connected between the right end of the frame 4 and the downward pipe, that is, connected to the front end of the straight downward pipe 7. The downward pipe realizes the displacement in the horizontal direction and the vertical rotation (rotation around the shaft 15) in the space within the range of the steel rail, so as to increase the adjustable space of the feeding chute 13 and the flowability of the material. The downward pipe support 6 can drive the feeding pipe to move horizontally on the frame 4 with wheels. The device realizes the horizontal movement and the rotational movement around the shaft 15 by controlling the double oil cylinders. The downward pipe is divided into four sections and welded at multiple angles to form a special-shaped downward pipe, α1=260 degrees, α2=165 degrees, and α3=40 degrees, so as to ensure the flowability of the material and increase the flexibility of the material transportation (see Fig. 2). The weight device 11 is installed at a distance of 200 mm from the tail of the inclined downcomer 8, and is a round steel plate with a thickness of 20 mm and a diameter of 560 mm, which is connected to the inclined downcomer 8 by bolts. When the work is stopped, the weight device 11 can help the downcomer to maintain a balanced state, and when the work is in progress, the weight device 11 can cooperate with the hydraulic device to improve the rotation stability and smoothness of the downcomer. Meanwhile, the anti-backflow device is provided. The anti-backflow device is a round steel plate with a thickness of 4 mm and a diameter of 301 mm, which is arranged at a distance of 930 mm from the tail of the inclined downcomer 8, and is welded to the inclined downcomer 8 to form an integral whole. The anti-backflow device forms a protrusion on the inner wall of the inclined downcomer 8, which can prevent the material from flowing back to the vehicle frame, and can effectively reduce the escape of dust and other pollutants generated during the transportation of the material. The feeding flow direction is: the material conveying system 16 → the feeding chute 13 → the straight downcomer 7 → the rear inclined downcomer 9 → the further rear inclined downcomer 10 → the transfer ladle. By rotating the downcomer, the angle between the straight downcomer 7 and the material conveying system 16 can be increased, so that the collision and friction between the material and the downcomer due to gravity during the conveying of the material can be reduced, thereby reducing the wear degree of the inner wall of the feeding chute 13.

[0023] Working principle:

[0024] Preparation stage, at this time, the large oil cylinder 1 and the small oil cylinder 5 are in the retracted state, and the downcomer is placed in parallel, as shown in Fig. 1 .

[0025] Filling stage, the large oil cylinder 1 works, and the feeding chute 13 is moved horizontally as a whole to the specified position through the vehicle frame 4. The small oil cylinder 5 works, and the downcomer rotates around the shaft 15 until the further rear inclined downcomer 10 is aligned with the transfer ladle. When the transfer ladle and the further rear inclined downcomer 10 are connected, the downcomer is ready, and the material is conveyed into the downcomer through the material conveying system 16 and the feeding chute 13, and then the material is conveyed into the transfer ladle through the downcomer.

[0026] End stage, when the material in the downcomer is completely conveyed, the small oil cylinder 5 becomes a closed state, and the downcomer is kept horizontally placed. The large oil cylinder 5 becomes a closed state, and the feeding chute 13 is moved horizontally as a whole to the preparation stage position. Thus, the work flow is completed. The reciprocating cycle is completed, and the feeding work of the transfer ladle is completed.

[0027] The above description is only a specific implementation manner of the utility model, and various examples do not limit the essential content of the utility model.

Claims

1. A charging device for a converter, characterized in that It comprises a frame (4), one end of the frame (4) is connected with a large oil cylinder (1), the other end of the frame (4) is fixed with a blanking pipe support (6), the blanking pipe support (6) is installed with a movable blanking pipe, and a small oil cylinder (5) is connected between the frame (4) and the blanking pipe.

2. A vessel charging device according to claim 1, characterised in that The blanking pipe is divided into four sections, namely a straight section blanking pipe (7), a slanting blanking pipe (8) connected with the front end of the straight section blanking pipe (7), a rear slanting blanking pipe (9) connected with the rear end of the straight section blanking pipe (7) and a further rear slanting blanking pipe (10).

3. A vessel charging device according to claim 2, characterised in that The small oil cylinder (5) is connected between the frame (4) and the straight section blanking pipe (7).

4. A vessel charging device according to claim 2, characterised in that A counterweight device is added to the tail of the slanting blanking pipe (8).

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