Furnace chamber cleaning device for vacuum consumable electric arc furnace

Abstract

The furnace chamber cleaning device comprises a main motor and a gear motor, the main motor is connected with a steel wire roller brush through a triangular belt to drive the steel wire roller brush to rotate, the gear motor is connected with a rotating disc through a triangular belt to drive the rotating disc to revolve reversely, and a composite cleaning path is formed. The adjustable bearing seat adjusts the radial position of the steel wire roller brush through the screw rod to adapt to different furnace chamber diameters; the design of the slip ring and the chuck realizes rapid installation and stable power supply of the device. The furnace chamber cleaning device can automatically clean the furnace chamber of the vacuum consumable electric arc furnace, solves the problems that manual cleaning is low in cleaning efficiency and poor in safety, and has the advantages of being efficient, self-adaptive and compact in structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of metal smelting equipment, specifically relating to a furnace chamber cleaning device for a vacuum consumable electric arc furnace. Background Technology

[0002] Vacuum arc remelting (VAR) has been widely used in the preparation of titanium and its alloy ingots due to its low equipment investment and operating costs, high efficiency, and simple operation. During vacuum remelting, the volatilization of alloying elements at high temperatures results in a large amount of metallic or non-metallic volatile deposits adhering to the furnace walls. If these deposits are not cleaned in time, they may detach into the molten metal, leading to metallurgical defects in the ingots.

[0003] Currently, vacuum furnace cleaning is entirely done manually. During the cleaning process, operators must wear protective clothing and respirators, enter the furnace chamber, and manually remove volatile substances adhering to the inner walls using stiff brooms. Workers must wear respirators to prevent inhalation of these substances and subsequent illness. The cumbersome protective clothing hinders cleaning efficiency. Furthermore, manual cleaning is time-consuming, resulting in low efficiency and incomplete cleaning, thus disrupting production schedules and reducing productivity. In addition, traditional cleaning tools are incompatible with furnace chambers of varying diameters, necessitating frequent tool changes or device adjustments.

[0004] In view of this, there is an urgent need in the field to develop a furnace cleaning device for a vacuum consumable electric arc furnace that is automated, compact, and adjustable. Utility Model Content

[0005] The purpose of this invention is to provide a furnace chamber cleaning device for a vacuum consumable electric arc furnace, which can solve the problems of low efficiency, poor safety and insufficient adaptability of manual cleaning, and achieve efficient and safe cleaning of the furnace chamber wall through mechanical transmission and adjustable structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A furnace chamber cleaning device for a vacuum consumable arc furnace, comprising:

[0008] The main motor has its shaft fixed to the first pulley, which drives symmetrically distributed wire roller brushes via a V-belt.

[0009] A geared motor, the shaft of which is fixedly connected to a second pulley, the second pulley drives a main shaft via a V-belt, and the main shaft is connected to a rotating disk assembly;

[0010] The rotating disk assembly includes an upper disk, a lower disk, and a connecting shaft. The two disks are rigidly connected by a connecting rod, and adjustable bearing seats are symmetrically provided on both sides. The adjustable bearing seats are driven to move radially by a screw, and steel wire roller brushes are installed on them.

[0011] The top end of the main shaft is fixed with a clamp for clamping and fixing with the furnace electrode rod;

[0012] The cables of the main motor and the geared motor are connected to the external control box via a slip ring device.

[0013] Furthermore, the output directions of the main motor and the geared motor are opposite, forming a reverse compound motion of the steel wire roller brush rotating on its own axis and the rotating disk revolving around it.

[0014] Furthermore, the adjustable bearing housing has a screw adjustment stroke of 0~115mm, which is suitable for furnace chamber diameters ranging from Φ1110~1310mm.

[0015] Furthermore, the card head is located at the central axis of the upper plate.

[0016] Furthermore, the slip ring device is integrated inside the spindle, and adopts an integrated design of conductive slip ring and rotary joint.

[0017] Furthermore, the wire roller brush is a carbon steel wire roller brush.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) The vacuum self-consuming electric arc furnace cleaning device of this utility model realizes fully automated cleaning. It replaces manual operation with motor drive, eliminates safety hazards, and improves cleaning efficiency by more than 60%.

[0020] 2) The vacuum self-consuming electric arc furnace cleaning device of this utility model can be adaptively adjusted. By adjusting the adjustable bearing seat and screw structure, the device can be adapted to different furnace chamber diameters, and its versatility is significantly enhanced.

[0021] 3) The vacuum self-consuming electric arc furnace cleaning device of this utility model realizes bidirectional motion cleaning. The steel wire roller brush rotates and the rotating disk revolves in opposite directions to form a composite motion trajectory, which enhances the cleaning effect and covers the furnace wall surface without dead corners. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of a furnace chamber cleaning device for a vacuum consumable electric arc furnace provided in an embodiment of this utility model.

[0023] Figure 2 This is a schematic diagram of the wire roller brush of the furnace chamber cleaning device for a vacuum consumable electric arc furnace provided in this embodiment of the present invention.

[0024] Figure 3 This is a partially enlarged view of the adjustable bearing seat of the furnace chamber cleaning device for a vacuum consumable electric arc furnace provided in this embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the conductive slip ring of the furnace chamber cleaning device for a vacuum consumable arc furnace provided in this embodiment of the present invention.

[0026] in:

[0027] 1-Main motor; 2-First pulley; 3-Wire roller brush; 4-Gear motor; 5-Second pulley; 6-Main shaft; 7-Upper plate; 8-Lower plate; 9-Connecting shaft; 10-Adjustable bearing seat; 11-Clipper; 12-Connecting rod; 13-Slip ring; 14-Control box. Detailed Implementation

[0028] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. Identical components are indicated by the same reference numerals. It should be noted that the terms "upper," "lower," "front," "rear," "left," and "right" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] Unless otherwise specified, the components or parts used in the following embodiments are all conventional products that can be purchased commercially.

[0030] like Figure 1 As shown, the furnace chamber cleaning device for a vacuum consumable arc furnace provided in this embodiment of the present invention includes:

[0031] The main motor 1 has its shaft fixedly connected to the first pulley 2, and the first pulley 2 drives the symmetrically distributed wire roller brushes 3 through a V-belt.

[0032] The geared motor 4 has its shaft fixedly connected to the second belt pulley 5. The second belt pulley 5 drives the main shaft 6 through a V-belt. The main shaft 6 is connected to the rotating disk assembly, thereby causing the rotating disk to rotate in the opposite direction. The rotating disk assembly includes an upper disk 7, a lower disk 8 and a connecting shaft 9. The two disks are rigidly connected by a connecting rod 12 to ensure rotational synchronization.

[0033] The rotating disk assembly is symmetrically provided with adjustable bearing seats 10 on both sides. The wire roller brush 3 is installed on the adjustable bearing seats 10. The distance between the bearing seats is adjusted by a screw, which drives the wire roller brush 3 to move radially to adapt to different furnace wall diameters. Preferably, the screw adjustment stroke of the adjustable bearing seat 10 is 0~115mm, which adapts to the furnace chamber diameter range of Φ1110~1310mm.

[0034] The top of the main shaft 6 is fixed with a clamp 11 for clamping and fixing with the furnace electrode rod, enabling quick installation and lifting control of the device; the cables of the main motor 1 and the geared motor 4 are connected to the external control box 14 through a slip ring device 13. Preferably, the slip ring device 13 is integrated inside the main shaft 6 to avoid cable tangling, and adopts an integrated design of conductive slip ring and rotary joint to connect the motor cable to the external control box 14.

[0035] Figure 2 The diagram shows a schematic of the wire roller brush 3. Preferably, the wire roller brush 3 is a carbon steel wire roller brush with a bristle length of 80mm. It adopts a high-density bristle planting process, and the bristles are densely distributed, thereby significantly increasing the cleaning area. In a single cleaning stroke, it can contact and clean more impurities over a large area, thus achieving excellent cleaning results.

[0036] Figure 3 The diagram shows an adjustable bearing housing. Preferably, the adjustable bearing housing 10 is a standard part UCTM206A, with a base made of cast iron and a bearing made of steel; it can be adjusted in angle and stroke according to usage requirements, with an adjustable stroke of 0~115mm.

[0037] Figure 4 The diagram shows a schematic of a conductive slip ring. The conductive slip ring 13 is a standard part H3899-0620-63394, with a maximum current capacity of 20A. Its base is made of aluminum alloy, the conductive block is made of brass, and the bearing is made of steel. The control box power cable is connected to the slip ring input terminal, and the main motor and reducer power cables are connected to the slip ring output terminal. Its function is to provide power to the main motor 1 and the reducer motor 4, while ensuring that the cables of the control box 14 do not become entangled as the sweeper rotates.

[0038] The working principle of the furnace chamber cleaning device for a vacuum self-consuming electric arc furnace in this embodiment is as follows: First, the electrode rod clamp 11 is clamped by the electrode rod clamp inside the furnace chamber. Then, the cleaning device is lifted by the furnace chamber electrode rod lifting system. Power is connected, and the control box 14 is started. The main motor 1 rotates, driving the first belt pulley 2. The first belt pulley 2 drives the wire roller brush 3 to rotate at 1400 rpm. Simultaneously, the reduction motor 4 rotates, driving the second belt pulley 5. The second belt pulley 5 rotates, driving the main shaft 6. The main shaft 6 rotates, driving the upper plate 7 and lower plate 8 to rotate in opposite directions at 40 rpm, forming a composite cleaning path, thus cleaning the furnace chamber. By raising and lowering the electrode rod of the vacuum self-consuming electric arc furnace, the device can move up and down inside the furnace chamber, covering the entire height of the furnace chamber and thoroughly cleaning it. By adjusting the screw of the adjustable bearing seat 10, the wire roller brush 3 can be moved radially to fit against the furnace wall, allowing cleaning of furnace walls of different diameters.

[0039] It should be noted that the embodiments described above are merely preferred embodiments of this utility model. For those skilled in the art, various modifications, improvements, and equivalent substitutions can be made to this utility model without departing from its principles, and such modifications, improvements, and equivalent substitutions are also considered to fall within the protection scope of the claims of this utility model.

Claims

1. A chamber cleaning device for a vacuum consumable arc furnace, characterized in that, It includes: The main motor (1) whose rotation axis is fixed with the first belt pulley (2), the first belt pulley (2) drives the symmetrical steel roller brush (3) through the V-belt; The reduction motor (4) whose rotation axis is fixed with the second belt pulley (5), the second belt pulley (5) drives the main shaft (6) through the V-belt, the main shaft (6) is connected with the rotating disc assembly; The rotating disc assembly includes the upper disc (7), the lower disc (8) and the connecting shaft (9), the two discs are rigidly connected through the connecting rod (12), and the adjustable bearing seat (10) is symmetrically arranged on both sides, the adjustable bearing seat (10) is driven to move radially through the screw rod, and the steel roller brush (3) is installed thereon; The main shaft (6) is fixed with the chuck (11) at the top end, which is used for clamping and fixing with the electrode rod of the furnace chamber; The cable of the main motor (1) and the reduction motor (4) is connected to the external control box (14) through the slip ring device (13).

2. The chamber cleaning apparatus for a vacuum consumable arc furnace according to claim 1, characterized in that, The output rotation directions of the main motor (1) and the reduction motor (4) are opposite, forming the reverse compound motion of the self-rotation of the steel roller brush (3) and the revolution of the rotating disc.

3. The chamber cleaning apparatus for a vacuum consumable arc furnace according to claim 1, wherein The screw rod adjustment stroke of the adjustable bearing seat (10) is 0-115mm, and the diameter range of the furnace chamber is Φ1110-1310mm.

4. The chamber cleaning apparatus for a vacuum consumable arc furnace of claim 1, wherein, The chuck (11) is located at the central axis of the upper disc (7).

5. The chamber cleaning apparatus for a vacuum consumable arc furnace of claim 1, wherein, The slip ring device (13) is integrated in the main shaft (6), and the conductive slip ring and the rotary joint are designed in an integrated manner.

6. The chamber cleaning apparatus for a vacuum consumable arc furnace of claim 1, wherein, The steel roller brush (3) is a carbon steel roller brush.

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