Flow-adjustable blast furnace scrap steel hopper

Abstract

The utility model belongs to the field of smelting auxiliary equipment, and particularly relates to a flow-adjustable blast furnace scrap steel hopper, which is characterized in that a hopper body is a cuboid, the top and the bottom of the hopper body are open, a base is arranged at the bottom of the hopper body, the bottom of the hopper body is open, four trapezoidal inclined planes are welded towards the bottom of the hopper body along four side surfaces from high to low in the hopper body, the long side of the hopper body serves as the lower bottom of the other two trapezoid slopes, the bevel edges of any two adjacent trapezoid slopes are welded, a rectangular discharging port is formed in the bottom of the hopper body, a baffle is arranged at the discharging port, round steel rings are welded to the two sides of one end of the bottom of each trapezoid slope below the discharging port, a round hole is formed in one side of the base, and the round steel rings and the round hole are located on the same horizontal line. Round steel penetrates through the round hole and the round steel ring, the top end of the round steel is welded to the baffle, the round steel outside the base is horizontally welded to the hollow pipe, and the baffle and the hollow pipe are located on different sides of the two ends of the round steel. According to the hopper, the opening degree of the baffle is controlled by adjusting the hollow pipe, and the blast furnace scrap steel feeding flow is controlled.

Description

Technical Field

[0001] The utility model belongs to the field of smelting auxiliary equipment, and particularly relates to a blast furnace scrap steel hopper with adjustable flow rate. Background Technique

[0002] Adding scrap steel to a blast furnace for ironmaking is an effective way to recycle scrap steel. Light scrap steel has a high oxidation degree and a low price, but due to its small specific gravity and large volume, there is a fixed opening at the bottom of the existing scrap steel hopper for feeding, and the falling material amount cannot be controlled, which is not conducive to controlling the flow rate of scrap steel into the blast furnace and seriously affects the production rhythm of blast furnace ironmaking. Content of the Utility Model

[0003] The purpose of the utility model is to provide a blast furnace scrap steel hopper with adjustable flow rate, and solve the problem that the existing blast furnace scrap steel hopper cannot control the falling material amount.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A blast furnace scrap steel hopper with adjustable flow rate, comprising a hopper body and round steel. The hopper body is a cuboid with openings at both the top and the bottom. A base is provided at the bottom of the hopper body for support, and the bottom is open. Inside the hopper body, 4 trapezoidal inclined planes are welded along the four side surfaces from high to low towards the bottom of the hopper body. Among them, 2 trapezoidal inclined planes take the wide side of the hopper body as the lower base, and the other 2 trapezoidal inclined planes take the long side of the hopper body as the lower base. The hypotenuses of any 2 adjacent trapezoidal inclined planes are welded to form a rectangle at the bottom of the hopper body as the discharge port. A baffle is provided at the discharge port. Circular steel rings are welded on both sides at one end of the bottom of the trapezoidal inclined plane below the discharge port. A circular hole is opened on one side of the base, and the 2 circular steel rings and the circular hole are on the same horizontal line. The round steel penetrates into the circular hole and the circular steel rings, and the top end of the round steel is welded to the baffle. The round steel outside the base is horizontally welded to a hollow pipe. The baffle and the hollow pipe are on different sides at both ends of the round steel. By rotating the hollow pipe upwards, the round steel is controlled to rotate, driving the baffle to rotate downwards to adjust the falling material flow rate of the discharge port.

[0006] Preferably, lifting lugs are symmetrically arranged on the outer sides of the front and rear walls of the hopper body.

[0007] Preferably, the trapezoidal inclined planes on the left and right sides of the hopper body are right trapezoids.

[0008] Preferably, an inverted "V" - shaped buffer plate is welded above the discharge port.

[0009] Preferably, a buckle is provided on the outer wall of the hopper body at the other end of the hollow pipe, and when the hollow pipe is in a horizontal position, the buckle is clamped with the hollow pipe.

[0010] Preferably, the long side of the discharge port is 800 - 1000 mm, and the wide side is 400 - 600 mm.

[0011] Preferably, the bucket body is made of steel plate with a thickness of 30-50 mm.

[0012] Preferably, the length of the bucket body is 3500 mm - 4000 mm, the width is 2000 mm - 2500 mm, and the height is 2800 mm - 3000 mm.

[0013] The beneficial effects achieved by the present utility model:

[0014] This hopper has a low cost and is easy to operate. By adjusting the hollow tube outside the hopper according to the blanking requirement, the opening degree of the baffle is controlled, so as to achieve the purpose of controlling the feeding flow of blast furnace scrap steel, prevent the situation that the addition amount of scrap steel is too high or too low, and reduce the impact on production. Description of the Drawings

[0015] Figure 1 It is a structural sectional view of an embodiment of the present utility model;

[0016] Figure 2 It is a schematic diagram of the internal trapezoidal inclined plane structure of the bucket body of the present utility model;

[0017] Figure 3 It is a state diagram of adjusting the flow rate of the present utility model.

[0018] Description of the reference numerals: 1. Bucket body; 2. Base; 3. Trapezoidal inclined plane; 4. Discharge port; 5. Baffle; 6. Circular steel ring; 7. Round steel; 8. Hollow tube; 9. Lifting lug; 10. Buffer plate; 11. Snap fastener. Detailed Embodiment

[0019] The technical solution of the present utility model will be further described below in conjunction with the drawings and embodiments.

[0020] As Figure 1-2As shown, a blast furnace scrap steel hopper with adjustable flow rate includes a hopper body 1 and round steel 7. The hopper body 1 is a rectangular parallelepiped, and the hopper body 1 is made of a steel plate with a thickness of 40 mm. The hopper body is 4000 mm long, 2000 mm wide, and 3000 mm high. The top and the bottom are both open. A base 2 is arranged at the bottom of the hopper body 1. Four trapezoidal inclined surfaces 3 are welded along four sides from high to low to the bottom of the hopper body 1. Two of the trapezoidal inclined surfaces 3 have the wide sides of the hopper body 1 as the bottom and are right-angled trapezoids. The other two trapezoidal inclined surfaces 3 have the long sides of the hopper body 1 as the bottom. The inclined sides of any two adjacent trapezoidal inclined surfaces 3 are welded to form a bottom of the hopper body 1. A rectangle is a discharge port 4, the long side of the discharge port 4 is 800mm, the wide side is 400mm, a baffle 5 is arranged at the discharge port 4, circular steel rings 6 are welded on both sides of one end of the bottom of the trapezoidal inclined surface 3 below the discharge port 4, a circular hole is opened on one side of the base 1, the two circular steel rings 6 and the circular hole are on the same horizontal line, a round steel 7 is inserted into the circular hole and the circular steel ring 6, the top of the round steel 7 is welded to the baffle 5, the round steel 7 outside the base 1 is horizontally welded to the hollow tube 8, the baffle 5 and the hollow tube 8 are located on different sides of the two ends of the round steel 7, a buckle 11 is arranged on the outer wall of the bucket body 1 at the other end of the hollow tube 8, and when the hollow tube 8 is in a horizontal position, the buckle 11 is clamped with the hollow tube 8; Figure 3 As shown, the round steel is controlled to rotate by rotating the hollow tube upward, which drives the baffle to rotate downward, adjusts the material flow rate at the discharge port, prevents the amount of scrap steel added from fluctuating, and reduces the impact on production.

[0021] Lifting ears 9 are symmetrically arranged on the outer sides of the front and rear walls of the bucket body 1, and an inverted "V"-shaped buffer plate 10 is welded on the inner wall of the bucket body 1 above the discharge port; the lifting ears are arranged to facilitate the lifting and replacement of the bucket, and the "V"-shaped buffer plate is used to buffer the falling material to prevent the falling material from causing excessive impact force on the discharge port and the trapezoidal slope to cause damage to the bucket.

Claims

1. An adjustable-flow blast furnace scrap hopper, characterized in that, It includes a bucket body (1) and round steel (7). The bucket body (1) is a cuboid with openings at both the top and the bottom. A base (2) is provided at the bottom of the bucket body (1), and the bottom is open. Four trapezoidal inclined planes (3) are welded along the four side faces from high to low inside the bucket body (1) towards the bottom of the bucket body (1). Among them, 2 trapezoidal inclined planes (3) have the wide side of the bucket body (1) as the lower base, and the other 2 trapezoidal inclined planes (3) have the long side of the bucket body (1) as the lower base. The hypotenuses of adjacent 2 trapezoidal inclined planes (3) are welded to form a rectangle at the bottom of the bucket body (1), which is the discharge port (4). A baffle (5) is provided at the discharge port (4). Circular steel rings (6) are welded on both sides at one end of the bottom of the trapezoidal inclined plane (3) below the discharge port (4). A circular hole is opened on one side of the base (2). The 2 circular steel rings (6) and the circular hole are on the same horizontal line. The round steel (7) passes through the circular hole and the circular steel rings (6), and the top end of the round steel (7) is welded to the baffle (5). The round steel (7) outside the base (2) is horizontally welded to a hollow pipe (8). The baffle (5) and the hollow pipe (8) are on different sides at both ends of the round steel (7).

2. The adjustable-flow blast furnace scrap hopper according to claim 1, characterized in that, Lifting lugs (9) are symmetrically provided on the outer sides of the front and rear walls of the bucket body (1).

3. The adjustable-flow blast furnace scrap hopper according to claim 2, wherein, The trapezoidal inclined planes (3) on the left and right sides of the bucket body (1) are right trapezoids.

4. The adjustable-flow blast furnace scrap hopper according to claim 3, characterized in that, An inverted "V" - shaped buffer plate (10) is welded above the discharge port (4).

5. An adjustable-flow blast furnace scrap hopper according to any one of claims 1 or 4, characterized in that, A buckle (11) is provided on the outer wall of the bucket body (1) at the other end of the hollow pipe (8). When the hollow pipe (8) is in a horizontal position, the buckle (11) is clamped with the hollow pipe (8).

6. The adjustable-flow blast furnace scrap hopper according to claim 5, wherein, The long side of the discharge port (4) is 800 - 1000 mm, and the wide side is 400 - 600 mm.

7. The adjustable-flow blast furnace scrap hopper according to claim 6, characterized in that, The bucket body (1) is made of steel plates with a thickness of 30 - 50 mm.

8. The adjustable-flow blast furnace scrap hopper according to claim 7, characterized in that, The length of the bucket body (1) is 3500 mm - 4000 mm, the width is 2000 mm - 2500 mm, and the height is 2800 mm - 3000 mm.

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