Vermicularizing treatment device for vermicular graphite cast iron

Abstract

The utility model provides a vermicularizing treatment device for vermicular graphite cast iron, which relates to the technical field of vermicular graphite cast iron production, and comprises a base, a mixing barrel with an iron liquid feeding hole and a discharging pipe, and a mixing motor, a rotating shaft is eccentrically arranged at the bottom of the mixing barrel, the mixing motor is fixed on the base, and the output end of the mixing motor is connected with the rotating shaft at the bottom of the mixing barrel; a vermicularizing agent feeding hopper for injecting a vermicularizing agent and an annular moving mechanism are further arranged at the top of the mixing barrel, and the annular moving mechanism can drive the vermicularizing agent feeding hopper to annularly move with the central axis of the mixing barrel as the center line. According to the vermicularizing treatment device for the vermicular graphite cast iron, the eccentric rotating arrangement of the mixing barrel can also reduce the centrifugal force of molten iron around the center during rotation, so that the molten iron in the center moves towards the barrel wall, the molten iron in the mixing barrel and a vermiculizer can be rapidly and fully mixed within a proper temperature range, and the vermicularizing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of vermicular graphite cast iron production technology, specifically to a vermicular graphite cast iron vermicularization treatment device. Background Technology

[0002] Vermicular graphite cast iron has been widely used in the automotive and machinery manufacturing industries in recent years due to its excellent thermal conductivity, fatigue resistance, and vibration damping properties. As a new type of material between gray cast iron and ductile iron, vermicular graphite cast iron not only has good casting properties, but also can achieve a combination of high strength and high toughness by controlling the microstructure. It is particularly suitable for manufacturing key components such as heavy-duty engine cylinder blocks and crankcases where durability and reliability are extremely important.

[0003] Currently, vermicularizing agents need to be added to molten iron in the processing technology. On the market, vermicularizing agents are generally added through an addition pipe set at a fixed point on the tank. Since the addition point of the vermicularizing agent is always fixed and it is not shaken during processing, the vermicularizing agent and molten iron cannot be fully mixed within the appropriate temperature range of the molten iron. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a vermicular graphite cast iron vermicularization treatment device, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a vermicular graphite cast iron vermicularizing treatment device, comprising a base, a mixing tank with an iron molten inlet and an outlet pipe, and a mixing motor. The bottom of the mixing tank is eccentrically provided with a rotating shaft. The mixing motor is fixed on the base and its output end is connected to the rotating shaft at the bottom of the mixing tank. The top of the mixing tank is also provided with a vermicularizing agent feed hopper for adding vermicularizing agent and a circumferential moving mechanism. The circumferential moving mechanism can drive the vermicularizing agent feed hopper to move circumferentially around the central axis of the mixing tank.

[0008] Preferably, the circumferential moving mechanism includes a ring rail circumferentially formed on the top of the mixing tank, a slider slidably adapted within the ring rail, ring teeth, a gear, and a drive motor. The ring teeth are disposed on the top of the mixing tank and are concentric with the ring rail. The vermicularizer feed hopper is disposed on the slider. The gear is pivotally connected to the slider and meshes with the ring teeth. The drive motor is disposed on the slider and connected to the gear. The top cover of the mixing tank located on both sides of the ring rail is connected by a connecting frame.

[0009] Preferably, a feed pipe is provided through the slider, and the top end of the feed pipe is connected to the vermicularizer feed hopper.

[0010] Preferably, the base is provided with a stabilizing mechanism, which provides cushioning when the mixing tank rotates.

[0011] Preferably, the stabilizing mechanism includes a bracket and several sets of pulleys, sleeves, connecting rods, and springs. The bracket is mounted on the base, the sleeve is fixed on the bracket and arranged radially along the mixing tank, one end of the connecting rod is telescopically adapted to the sleeve, and the other end is connected to the pulley. The pulley abuts against the outer wall of the mixing tank, and the spring is sleeved on the outside of the connecting rod and located between the sleeve and the pulley.

[0012] Preferably, the molten iron inlet is located at the center of the top of the mixing tank, and the discharge pipe is located below the side of the mixing tank.

[0013] Preferably, a retaining ring is provided above the inner wall of the mixing tank.

[0014] (III) Beneficial Effects

[0015] This invention provides a vermicularization treatment device for vermicular graphite cast iron. It has the following beneficial effects:

[0016] 1. The vermicular graphite cast iron vermicularizing treatment device, with its eccentrically rotating mixing tank, can reduce the centrifugal force of the molten iron around the center during rotation, causing the molten iron in the center to move towards the tank wall. This allows the molten iron and vermicularizing agent in the mixing tank to mix quickly and thoroughly within a suitable temperature range, thereby improving the vermicularizing effect.

[0017] 2. The vermicularization treatment device for vermicular graphite cast iron utilizes a circumferential moving mechanism to drive the vermicularizing agent feed hopper to move circumferentially. This causes the vermicularizing agent falling into the mixing tank from the feed hopper to no longer be at a fixed point, but to be injected circumferentially around the mixing tank. This avoids the vermicularizing agent from sinking to the bottom of the tank after being added to the same point, effectively increasing the mixing speed of the vermicularizing agent and the molten iron and improving the vermicularization effect.

[0018] 3. The vermicular graphite cast iron vermicularization treatment device has six sets of pulleys that can freely extend and retract as the mixing tank rotates eccentrically. Under the action of springs, the six sets of pulleys can always support the six angles of the mixing tank, which greatly improves the stability of the mixing tank when it rotates. Attached Figure Description

[0019] Figure 1 This is an isometric view of the present invention;

[0020] Figure 2 This is a schematic diagram of the bottom of the base of this utility model;

[0021] Figure 3 This is a side sectional view of the mixing tank of this utility model.

[0022] In the diagram: 1. Base, 2. Mixing tank, 3. Mixing motor, 4. Molten iron inlet, 5. Discharge pipe, 6. Stabilizing mechanism, 7. Connecting frame, 8. Vermicularizer feed hopper, 9. Ring rail, 10. Slider, 11. Ring gear, 12. Gear, 13. Drive motor, 14. Discharge pipe, 15. Rotating shaft, 16. Retaining ring, 61. Bracket, 62. Pulley, 63. Sleeve, 64. Connecting rod, 65. Spring. Detailed Implementation

[0023] This utility model embodiment provides a vermicularization treatment device for vermicular graphite cast iron, such as... Figure 1-3 As shown, it includes a base 1, a mixing tank 2 with an iron molten feed inlet 4 and a discharge pipe 5, and a mixing motor 3.

[0024] The molten iron inlet 4 is located at the center of the top of the mixing tank 2, and the discharge pipe 5 is located on the lower side of the mixing tank 2. A solenoid valve is installed at the outlet of the discharge pipe 5.

[0025] like Figure 1-2 As shown, a rotating shaft 15 is eccentrically positioned at the bottom of the mixing tank 2. The mixing motor 3 is fixed to the base 1, and its output end is connected to the rotating shaft 15 at the bottom of the mixing tank 2. The center of the mixing tank 2 is concentric with that of the base 1. When the mixing motor 3 is driven, it can cause the mixing tank 2 to eccentrically swing around the center of the base 1. The eccentric rotation of the mixing tank 2 can also reduce the centrifugal force of the molten iron around the center when rotating, causing the molten iron in the center to move towards the tank wall. This allows the molten iron and vermicularizing agent in the mixing tank to mix quickly and thoroughly within a suitable temperature range, improving the vermicularizing effect.

[0026] In order to disperse the area where the vermicularizer is added, the top of the mixing tank 2 is also provided with a vermicularizer feed hopper 8 for adding vermicularizer and a circumferential moving mechanism. The circumferential moving mechanism can drive the vermicularizer feed hopper 8 to move circumferentially around the central axis of the mixing tank 2.

[0027] The circumferential moving mechanism drives the vermicularizer feed hopper 8 to move circumferentially, so that the vermicularizer falling into the mixing tank 2 from the vermicularizer feed hopper 8 is no longer at a fixed point, but is injected circumferentially around the mixing tank 2. This avoids the vermicularizer sinking to the bottom of the tank after being added to the same point, effectively improving the mixing speed of the vermicularizer and the molten iron and improving the vermicularization effect.

[0028] Specifically, such as Figure 1As shown, the circumferential moving mechanism includes a ring rail 9 circumferentially formed on the top of the mixing tank 2, a slider 10 slidably fitted within the ring rail 9, ring teeth 11, gears 12, and a drive motor 13. The ring rail 9 divides the top cover of the mixing tank 2 into inner and outer parts, and the top covers on both sides of the ring rail 9 are connected by a connecting frame 7. The ring teeth 11 are located on the top of the mixing tank 2 and are concentric with the ring rail 9. The vermicularizer feed hopper 8 is mounted on the slider 10. The gear 12 is pivotally connected to the slider 10 and meshes with the ring teeth 11. Limiting rings are provided on the upper and lower surfaces of the slider 10 to restrict its movement on the ring rail 9, preventing the slider 10 from detaching from the ring rail 9. The drive motor 13 is mounted on the slider 10 and connected to the gear 12.

[0029] When the drive motor 13 drives the gear 12 to rotate, the rotation of the gear 12 causes the slider 10 to move circumferentially along the ring tooth 11.

[0030] A feed pipe 14 is installed through the slider 10, and the top end of the feed pipe 14 is connected to the vermicularizer feed hopper 8. A solenoid valve is installed at the bottom of the feed pipe 14 to control the opening and closing of the feed outlet of the feed pipe 14.

[0031] To improve the stability of the mixing tank 2 during rotation, a stabilizing mechanism 6 is provided on the base 1. The stabilizing mechanism 6 is used to provide cushioning when the mixing tank 2 rotates.

[0032] like Figure 1 As shown, the stabilizing mechanism 6 includes a bracket 61 and at least six sets of pulleys 62, sleeves 63, connecting rods 64, and springs 65. The bracket 61 is mounted on the base 1, and the sleeves 63 are fixed on the bracket 61 and arranged radially along the mixing tank 2. One end of the connecting rod 64 is telescopically adapted to the sleeve 63, and the other end is connected to the pulleys 62. The pulleys 62 abut against the outer wall of the mixing tank 2. The springs 65 are sleeved on the connecting rod 64 and located between the sleeves 63 and the pulleys 62.

[0033] The six sets of pulleys 62 can extend and retract freely as the mixing tank 2 rotates eccentrically. Under the action of the spring 65, the six sets of pulleys 62 can always support the six angles of the mixing tank 2, which greatly improves the stability of the mixing tank 2 when it rotates.

[0034] like Figure 3 As shown, a baffle ring 16 is provided above the inner wall of the mixing tank 2. The inner diameter of the baffle ring 16 is larger than the outer diameter of the ring rail 9. The baffle ring 16 can reduce the occurrence of molten iron splashing due to collision with the tank wall when the molten iron is shaken, thus improving safety.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for vermicularizing compacted graphite cast iron, characterized by: The utility model relates to a mixing device for molten iron, which comprises a base (1), a mixing barrel (2) with a molten iron feeding port (4) and a discharge pipe (5), and a mixing motor (3), the bottom of the mixing barrel (2) is eccentrically provided with a rotating shaft (15), the mixing motor (3) is fixed on the base (1) and its output end is connected with the rotating shaft (15) at the bottom of the mixing barrel (2), and the top of the mixing barrel (2) is further provided with a vermiculite feeding hopper (8) for adding vermiculite and a circumferential moving mechanism, which can drive the vermiculite feeding hopper (8) to move in a circumferential direction with the central axis of the mixing barrel (2) as the center line.

2. An apparatus for vermicularizing compacted cast iron according to claim 1, characterized in that: The circumferential moving mechanism comprises a circumferential track (9) opened in the top of the mixing barrel (2), a sliding block (10) slidingly fitted in the circumferential track (9), a ring gear (11), a gear wheel (12) and a driving motor (13), the ring gear (11) is arranged on the top of the mixing barrel (2) and is coaxially arranged with the circumferential track (9), the vermiculite feeding hopper (8) is arranged on the sliding block (10), the gear wheel (12) is pivotally connected to the sliding block (10) and is engaged with the ring gear (11), the driving motor (13) is arranged on the sliding block (10) and is connected with the gear wheel (12), and the top covers on both sides of the circumferential track (9) are connected by a connecting frame (7).

3. An apparatus for vermicularizing compacted graphite iron according to claim 2, characterized in that: A discharge pipe (14) is arranged through the sliding block (10), and the top end of the discharge pipe (14) is in communication with the vermiculite feeding hopper (8).

4. An apparatus for vermicularizing compacted graphite iron according to claim 1, characterized in that: A stabilizing mechanism (6) is arranged on the base (1) and is used to provide buffering when the mixing barrel (2) rotates.

5. An apparatus for vermicularizing compacted graphite iron according to claim 4, characterized in that: The stabilizing mechanism (6) comprises a support (61) and a plurality of groups of pulleys (62), sleeves (63), connecting rods (64) and springs (65), the support (61) is arranged on the base (1), the sleeves (63) are fixed on the support (61) and are arranged along the radial direction of the mixing barrel (2), one end of the connecting rod (64) is slidingly fitted in the sleeve (63), the other end is connected with the pulley (62), the pulley (62) is in abutment with the outer wall of the mixing barrel (2), and the spring (65) is sleeved on the connecting rod (64) and is located between the sleeve (63) and the pulley (62).

6. An apparatus for vermicularizing compacted graphite iron according to claim 1, characterized in that: The molten iron feeding port (4) is arranged at the center of the top of the mixing barrel (2), and the discharge pipe (5) is arranged below the side of the mixing barrel (2).

7. An apparatus for vermicularizing compacted cast iron according to claim 1, wherein: A ring-shaped baffle (16) is arranged on the inner wall of the mixing barrel (2).

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