Improved high-chromium cast iron refining equipment

Abstract

The utility model relates to the technical field of iron casting equipment, in particular to improved refining high-chromium iron casting equipment. Comprising a furnace body, a rotating disc, a plurality of air bricks and a plurality of limiting pieces. A mounting hole is formed in the bottom end of the furnace body, and a rack is mounted at the bottom end of the furnace body; a plurality of placing grooves are formed in the rotating disc, the placing grooves are matched with the bottoms of the air bricks, and a power mechanism used for driving the rotating disc to rotate and ascend and descend is installed on the rack; the multiple limiting pieces are installed on the peripheral side of the rotating disc and used for fixing the air bricks. The air brick replacement device can achieve automatic replacement work of air bricks, and is simple in structure and high in replacement speed.

Description

Technical Field

[0001] The utility model relates to the technical field of cast iron equipment, in particular to an improved high-chromium cast iron refining equipment. Background Art

[0002] High chromium cast iron is widely used in mechanical equipment components in metallurgy, mining, building materials, cement, railways, electric power, petrochemical, military and other industries. The wear resistance and service life of high chromium cast iron castings are closely related to the metallurgical quality. Improving the wear resistance of high chromium cast iron castings and extending their service life, the amount of impurities such as oxides, inclusions, and gas content in the high chromium cast iron liquid directly affects the material properties. During the smelting process of high chromium cast iron liquid, due to the effects of air absorption and oxidation, a certain amount of oxides, non-metallic inclusions, and harmful gases are present in the high chromium cast iron liquid. In order to ensure that the high chromium cast iron liquid forms castings in a pure state, the molten high chromium cast iron liquid needs to be refined and purified to achieve the purification effect.

[0003] The patent with announcement number CN213388764U discloses an improved high-chromium cast iron refining equipment, which includes a furnace body, a vertical hole at the bottom of the furnace body, a breathable brick movably installed in the vertical hole, horizontal grooves on the inner walls on both sides of the vertical hole, and pins slidably installed in the two horizontal grooves. Slots adapted to the pins are provided on both sides of the breathable brick, and the two pins are movably mounted in the corresponding slots. One end of the pull rod is fixedly installed on the side of the two pins away from each other, and a cross bar is fixedly installed on the other ends of the two pull rods, and small racks are fixedly installed on the front ends of the two cross bars. A through hole is provided on one side of the furnace body, and mounting grooves are provided on the bottom inner wall and the top inner wall of the through hole.

[0004] The above-mentioned disclosed patent still has the following technical defects: the replacement work needs to be done manually, the operation is relatively cumbersome, and its replacement efficiency is low. It is necessary to wait until the furnace body is fully cooled before the replacement can be carried out, otherwise there is a risk of burns. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and to provide an improved high-chromium cast iron refining equipment.

[0006] The technical solution of the utility model is an improved high-chromium cast iron refining equipment, comprising:

[0007] A furnace body having a mounting hole at the bottom, and a frame mounted on the bottom of the furnace body;

[0008] A rotating disk is provided with a plurality of placement slots, and a power mechanism for driving the rotating disk to rotate and lift is installed on the frame;

[0009] Multiple breathable bricks, with placement slots that fit into the bottom of the breathable bricks;

[0010] A plurality of limiting members are installed on the peripheral side of the rotating disk and are respectively used to fix the air-permeable bricks.

[0011] Preferably, the upper and lower ends of the air brick are provided with a first annular groove, and the upper and lower rings are respectively fitted in the first annular grooves of the upper and lower ends. A plurality of fixing rods are connected between the upper and lower rings, and the fixing rods are embedded in the air brick.

[0012] Preferably, the limiting member is a butterfly bolt, which is threadedly connected to the rotating disk, and the end of the butterfly bolt extends into the placement groove on the corresponding side, and a second annular groove is opened on the lower ring.

[0013] Preferably, the power mechanism includes a hydraulic cylinder and a servo motor, the hydraulic cylinder is mounted on the frame, a motor bracket is mounted on the output shaft of the hydraulic cylinder, the servo motor is mounted on the motor bracket, and the output shaft of the servo motor is connected to the rotating disk.

[0014] Preferably, an angle sensor is installed on the rotating disk, and a controller is installed on the furnace body. The controller is electrically connected to the angle sensor, the hydraulic cylinder and the servo motor.

[0015] Preferably, a gas diffuser is installed inside the air-permeable brick, a ventilation pipe is connected to the gas diffuser, and the bottom ends of the plurality of placement grooves are provided with through holes for the ventilation pipe to pass through.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects: the rotating disk is driven to move downward by the provided hydraulic cylinder, and the movement of the rotating disk drives the air brick to move, so that the air brick is moved out from the inside of the mounting hole, and then the rotating disk is driven to rotate by the provided servo motor, and the rotation of the rotating disk drives the new air brick to move to the position directly below the mounting hole, and the hydraulic cylinder is started again to drive the new air brick to be inserted into the interior of the mounting hole, thereby realizing the replacement of the air brick, making the replacement of the air brick automated, and its structure is streamlined and the replacement speed is fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 and Figure 2 All of them are structural schematic diagrams of the present utility model.

[0018] Figure 3 It is a cross-sectional structural diagram of the furnace body in this utility model.

[0019] Figure 4 It is a structural schematic diagram of the rotating disk and multiple air-permeable bricks in the utility model.

[0020] Figure numerals: 1. furnace body; 101. mounting hole; 2. rotating disk; 201. placement groove; 202. through-hole; 3. frame; 4. hydraulic cylinder; 5. servo motor; 6. motor bracket; 7. breathable brick; 8. gas diffuser; 9. vent pipe; 10. upper ring; 11. lower ring; 111. second annular groove; 12. fixing rod; 13. butterfly bolt. DETAILED DESCRIPTION

[0021] Example 1

[0022] like Figure 1-Figure 4 As shown, the improved high-chromium cast iron refining equipment proposed in this embodiment includes a furnace body 1, a rotating disk 2, a plurality of air-permeable bricks 7 and a plurality of limiting members.

[0023] The bottom end of the furnace body 1 is provided with a mounting hole 101, and the bottom end of the furnace body 1 is provided with a frame 3; a gas diffuser 8 is installed inside the air brick 7, and a vent pipe 9 is connected to the gas diffuser 8. The bottom ends of the multiple placement grooves 201 are provided with a through hole 202 for the vent pipe 9 to pass through. The rotating disk 2 is provided with multiple placement grooves 201, and the placement grooves 201 fit with the bottom of the air brick 7. A power mechanism for driving the rotating disk 2 to rotate and lift is installed on the frame 3. The power mechanism includes a hydraulic cylinder 4 and a servo motor 5. The hydraulic cylinder 4 is installed on the frame 3, and the output shaft of the hydraulic cylinder 4 A motor bracket 6 is installed on it, and a servo motor 5 is installed on the motor bracket 6. The output shaft of the servo motor 5 is connected to the rotating disk 2; an angle sensor is installed on the rotating disk 2, and a controller is installed on the furnace body 1. The controller is electrically connected to the angle sensor, the hydraulic cylinder 4 and the servo motor 5. The angle sensor is set to monitor the rotation angle of the rotating disk 2 and feed back the signal to the controller, and then the servo motor 5 is controlled by the controller to work, thereby realizing the precise positioning of the rotating disk 2; a plurality of limit members are installed on the peripheral side of the rotating disk 2 and are used to fix the air bricks 7.

[0024] When replacing the air brick 7, the rotating disk 2 is driven downward by the hydraulic cylinder 4, and the air brick 7 is fixed by the limiter, that is, the movement of the rotating disk 2 drives the air brick 7 to move, so that the air brick 7 is moved out from the inner side of the mounting hole 101, and then the servo motor 5 is set to drive the rotating disk 2 to rotate, and the rotation of the rotating disk 2 drives the new air brick 7 to move to the position directly below the mounting hole 101, and then the hydraulic cylinder 4 is started again to drive the new air brick 7 to be inserted into the interior of the mounting hole 101, thereby realizing the replacement of the air brick 7, making the replacement of the air brick 7 automated, its structure is streamlined, and the replacement speed is fast.

[0025] Example 2

[0026] like Figure 4As shown, this embodiment proposes an improved high-chromium cast iron refining equipment. Compared with Example 1, in this embodiment, the upper and lower ends of the air brick 7 are provided with a first annular groove, and the first annular grooves at the upper and lower ends are respectively fitted with an upper ring 10 and a lower ring 11. A plurality of fixing rods 12 are connected between the upper ring 10 and the lower ring 11. The fixing rods 12 are embedded in the air brick 7. When the air brick 7 is driven downward to move, the upper ring 10 and the lower ring 11 are driven to move. The upper ring 10 can clean out the debris of the air brick 7 on the inner wall of the mounting hole 101 during the movement, so that a new air brick 7 can be smoothly inserted into the mounting hole 101.

[0027] The limiting member is a butterfly bolt 13 , which is threadedly connected to the rotating disk 2 , and the end of the butterfly bolt 13 extends into the placement groove 201 on the corresponding side. A second annular groove 111 is opened on the lower ring 11 .

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An improved high chromium cast iron refining equipment, characterized in that: include: A furnace body (1) having a mounting hole (101) at the bottom end, and a frame (3) is mounted at the bottom end of the furnace body (1); A rotating disk (2) is provided with a plurality of placement slots (201), and a power mechanism for driving the rotating disk (2) to rotate and lift is installed on the frame (3); A plurality of air-permeable bricks (7), wherein the placement groove (201) is fitted with the bottom of the air-permeable bricks (7); A plurality of position-limiting members are installed on the peripheral side of the rotating disk (2) and are respectively used to fix the air-permeable bricks (7).

2. An improved high chromium cast iron refining equipment according to claim 1, characterized in that: The upper and lower ends of the air-permeable brick (7) are both provided with a first annular groove, and an upper ring (10) and a lower ring (11) are respectively fitted in the first annular grooves of the upper and lower ends. A plurality of fixing rods (12) are connected between the upper ring (10) and the lower ring (11), and the fixing rods (12) are embedded in the air-permeable brick (7).

3. An improved high chromium cast iron refining equipment according to claim 2, characterized in that: The limiting member is a butterfly bolt (13), which is threadedly connected to the rotating disk (2). The end of the butterfly bolt (13) extends into the placement groove (201) on the corresponding side, and a second annular groove (111) is opened on the lower ring (11).

4. The improved high chromium cast iron refining equipment according to claim 1, characterized in that: The power mechanism comprises a hydraulic cylinder (4) and a servo motor (5). The hydraulic cylinder (4) is mounted on a frame (3). A motor bracket (6) is mounted on an output shaft of the hydraulic cylinder (4). The servo motor (5) is mounted on the motor bracket (6). The output shaft of the servo motor (5) is connected to the rotating disk (2).

5. An improved high chromium cast iron refining equipment according to claim 4, characterized in that: An angle sensor is installed on the rotating disk (2), and a controller is installed on the furnace body (1). The controller is electrically connected to the angle sensor, the hydraulic cylinder (4) and the servo motor (5).

6. The improved high chromium cast iron refining equipment according to claim 1, characterized in that: A gas diffuser (8) is installed inside the air-permeable brick (7), and a vent pipe (9) is connected to the gas diffuser (8). The bottom ends of the plurality of placement slots (201) are all provided with a through hole (202) for the vent pipe (9) to pass through.

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