A rotary gunning device based on a converter

Abstract

This utility model discloses a rotary spraying device based on a converter, including a frame, a support frame fixedly installed at the top of the frame, and a support plate horizontally fixedly installed at the top of the support frame. In this device, the arrangement of a connecting ring, a connecting plate, a stepper motor, a drive shaft, gears, a gear ring, a cylinder, and a telescopic rod enables the spray nozzle to be raised, lowered, or rotated. This arrangement ensures that refractory material is accurately sprayed onto the damaged parts of the converter lining, reducing refractory material waste and allowing for timely repair of damaged parts. The first and second protective cylinders protect the telescopic hose, enhancing the device's usability. Furthermore, the servo motor, rotating shaft, auger, and stirring rod ensure uniform mixing of the refractory material.

Description

Technical Field

[0001] This utility model relates to the technical field of converter spraying devices, specifically a rotary spraying device based on a converter. Background Technology

[0002] The converter is a core piece of equipment in steelmaking. Its lining comes into direct contact with high-temperature molten steel and slag, and is constantly worn down during the smelting process due to mechanical impact, chemical corrosion, and high-temperature erosion. To extend the service life of the converter and reduce production costs, the lining needs to be regularly repaired by spraying. This involves using spraying equipment to apply refractory material to the damaged areas of the lining to form a protective layer.

[0003] Repairing converter linings typically involves placing refractory material at the damaged location. However, due to the depth of the converter and the unpredictable location of the damage, it is difficult to accurately place the refractory material at the damaged location. This not only wastes refractory material but also prevents the damaged parts of the converter lining from being repaired in a timely manner.

[0004] To address these issues, this invention provides a rotary spraying device based on a converter. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a rotary spraying device based on a converter, which solves the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotary spraying device based on a converter, comprising a frame, a support frame fixedly mounted at the top of the frame, a support plate fixedly mounted laterally at the top of the support frame, a connecting ring rotatably mounted on the left side of the bottom of the support plate, a connecting plate fixedly mounted at the bottom of the connecting ring, a first protective cylinder fixedly mounted at the bottom of the connecting plate directly below the connecting ring, a sliding groove vertically formed on both sides of the inside of the first protective cylinder, a stabilizing rod vertically fixedly mounted inside each set of sliding grooves, a second protective cylinder slidably mounted inside the first protective cylinder, the tops of both sides of the second protective cylinder slidably connected to the sliding grooves at corresponding positions, and slidably connected to the stabilizing rods at corresponding positions, a double-pass vertically fixedly mounted at the bottom of the second protective cylinder, a spray pipe fixedly mounted at the bottom of the double-pass, a rotary joint vertically fixedly mounted at the middle position of the connecting ring on the connecting plate, a telescopic hose fixedly and sealed at the bottom of the rotary joint, and the other end of the telescopic hose being sealed and connected to the double-pass.

[0007] Preferably, a fixing plate is fixedly installed at the bottom of the left outer wall of the second protective cylinder, a cylinder is fixedly installed at the bottom left of the connecting plate, a telescopic rod is fixedly installed at the output end of the cylinder, and the other end of the telescopic rod is fixedly connected to the fixing plate.

[0008] Preferably, a gear ring is fixedly installed on the outer wall of the connecting ring, an L-shaped plate is fixedly installed at the left edge of the bottom end of the support plate, a stepper motor is fixedly installed on the left top end of the support plate, a drive shaft is fixedly installed at the output end of the stepper motor, the other end of the drive shaft is rotatably connected to the L-shaped plate, and a gear is fixedly installed on the outer wall of the drive shaft at a position corresponding to the gear ring, the gear meshing with the gear ring.

[0009] Preferably, a storage tank is fixedly installed at the middle position of the top of the vehicle frame, and a feed inlet is fixedly installed at the top of the storage tank. A shotcrete pump is fixedly installed on the right side of the top of the vehicle frame. The input end of the shotcrete pump is sealed and connected to a connecting pipe, and the other end of the connecting pipe is sealed and connected to the storage tank. The output end of the shotcrete pump is sealed and connected to a fixed pipe, and the other end of the fixed pipe is sealed and rotatably connected to the rotary joint.

[0010] Preferably, a servo motor is fixedly installed at the middle position of the top of the storage tank, a rotating shaft is fixedly installed at the output end of the servo motor, the bottom end of the rotating shaft is rotatably connected to the inner wall of the bottom of the storage tank, a spiral auger is fixedly installed at the bottom end of the outer wall of the rotating shaft, and a stirring rod is fixedly installed on the outer wall of the rotating shaft above the spiral auger.

[0011] Preferably, omnidirectional wheels are fixedly installed at the four corners of the bottom of the frame, and a push handle is fixedly installed at the right edge of the top of the frame, with a PLC controller fixedly installed on the push handle.

[0012] Beneficial effects

[0013] This invention provides a rotary spraying device based on a converter. Compared with the prior art, it has the following advantages:

[0014] In this device, the connection ring, connecting plate, stepper motor, drive shaft, gear, gear ring, cylinder, and telescopic rod enable the nozzle to be raised, lowered, or rotated. This configuration ensures precise spraying of refractory material onto damaged parts of the converter lining, reducing refractory material waste and allowing for timely repair of damaged areas. The first and second protective cylinders protect the telescopic hose, enhancing the device's usability. Furthermore, the servo motor, rotating shaft, auger, and stirring rod ensure uniform mixing of the refractory material. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2This is a schematic cross-sectional view of the present invention;

[0017] Figure 3 This is a utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a utility model Figure 2 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Frame; 2. Support frame; 3. Support plate; 4. Connecting ring; 5. Connecting plate; 6. First protective cylinder; 7. Slide groove; 8. Stabilizing rod; 9. Second protective cylinder; 10. Double passage; 11. Spray pipe; 12. Fixing plate; 13. Cylinder; 14. Telescopic rod; 15. Gear ring; 16. Stepper motor; 17. Drive shaft; 18. L-shaped plate; 19. Gear; 20. Storage tank; 21. Rotary joint; 22. Telescopic hose; 23. Fixing pipe; 24. Shotcrete pump; 25. Connecting pipe; 26. Feed inlet; 27. Servo motor; 28. Rotating shaft; 29. ​​Spiral auger; 30. Mixing rod; 31. Universal wheel; 32. Push handle; 33. PLC controller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1:

[0022] Please see Figure 1-4 A rotary spraying device based on a converter includes a frame 1, a support frame 2 fixedly installed at the top of the frame 1, a support plate 3 horizontally fixedly installed at the top of the support frame 2, a connecting ring 4 rotatably installed on the left side of the bottom end of the support plate 3, a connecting plate 5 fixedly installed at the bottom end of the connecting ring 4, a first protective cylinder 6 fixedly installed at the bottom end of the connecting plate 5 directly below the connecting ring 4, a sliding groove 7 vertically opened on both sides inside the first protective cylinder 6, a stabilizing rod 8 vertically fixedly installed inside each set of sliding grooves 7, a second protective cylinder 9 slidably installed inside the first protective cylinder 6, the top ends of both sides of the second protective cylinder 9 slidably connected to the sliding grooves 7 at corresponding positions, and slidably connected to the stabilizing rods 8 at corresponding positions, a double-pass 10 vertically through fixedly installed at the bottom end of the second protective cylinder 9, a spray pipe 11 fixedly installed at the bottom end of the double-pass 10, a rotary joint 21 vertically through fixedly installed on the connecting plate 5 at the middle position of the connecting ring 4, a telescopic hose 22 fixedly and sealed at the bottom end of the rotary joint 21, and the other end of the telescopic hose 22 being sealed and connected to the double-pass 10.

[0023] A fixing plate 12 is fixedly installed at the bottom of the left outer wall of the second protective cylinder 9. A cylinder 13 is fixedly installed at the bottom left of the connecting plate 5. A telescopic rod 14 is fixedly installed at the output end of the cylinder 13. The other end of the telescopic rod 14 is fixedly connected to the fixing plate 12.

[0024] A gear ring 15 is fixedly installed on the outer wall of the connecting ring 4. An L-shaped plate 18 is fixedly installed at the bottom left edge of the support plate 3. A stepper motor 16 is fixedly installed on the top left side of the support plate 3. A drive shaft 17 is fixedly installed at the output end of the stepper motor 16. The other end of the drive shaft 17 is rotatably connected to the L-shaped plate 18. A gear 19 is fixedly installed on the outer wall of the drive shaft 17 at the corresponding position of the gear ring 15. The gear 19 meshes with the gear ring 15.

[0025] A storage tank 20 is fixedly installed at the middle position of the top of the frame 1. A feed inlet 26 is fixedly installed at the top of the storage tank 20. A shotcrete pump 24 is fixedly installed on the right side of the top of the frame 1. A connecting pipe 25 is sealed to the input end of the shotcrete pump 24. The other end of the connecting pipe 25 is sealed to the storage tank 20. A fixed pipe 23 is sealed to the output end of the shotcrete pump 24. The other end of the fixed pipe 23 is sealed to the rotary joint 21.

[0026] A universal wheel 31 is fixedly installed at each of the four corners of the bottom of the frame 1, and a push handle 32 is fixedly installed at the right edge of the top of the frame 1. A PLC controller 33 is fixedly installed on the push handle 32.

[0027] When using this device to perform spraying maintenance on the converter lining, the operator first pushes the device to the appropriate position using the push handle 32. Then, the operator activates the cylinder 13, which raises and lowers the nozzle 11 until it reaches the position to be repaired. Simultaneously, the operator can also activate the stepper motor 16, which drives the gear 19 to rotate via the drive shaft 17. Because the gear 19 meshes with the gear ring 15 fixedly mounted on the connecting ring 4, the stepper motor 16 can drive the nozzle 11 to rotate. Through the above setup, the operator can easily adjust the position of the nozzle 11 according to the location to be repaired inside the converter, thereby ensuring the repair of the lining. Precisely spraying refractory material onto the damaged parts of the converter lining not only reduces the waste of refractory material but also allows for timely repair of the damaged parts. When the starting cylinder 13 adjusts the height of the nozzle 11, the second protective cylinder 9 slides inside the first protective cylinder 6, protecting the telescopic hose 22 and reducing the risk of accidental damage during operation. After adjusting the nozzle 11 to the appropriate position, the operator can start the shotcrete pump 24, allowing the refractory material stored in the storage tank 20 to be sprayed from the nozzle 11 through the connecting pipe 25, fixed pipe 23, rotary joint 21, and telescopic hose 22.

[0028] Example 2:

[0029] Please see Figure 1-4 This embodiment provides a technical solution based on embodiment one: a servo motor 27 is fixedly installed at the middle position of the top of the storage tank 20, a rotating shaft 28 is fixedly installed at the output end of the servo motor 27, the bottom end of the rotating shaft 28 is rotatably connected to the inner wall of the bottom end of the storage tank 20, a spiral auger 29 is fixedly installed at the bottom end of the outer wall of the rotating shaft 28, and a stirring rod 30 is fixedly installed on the outer wall of the rotating shaft 28 above the spiral auger 29.

[0030] When using this device, the operator can first start the servo motor 27 to drive the rotating shaft 28 to rotate, which in turn drives the spiral auger 29 to rotate, thus lifting the refractory material at the bottom of the storage tank 20 upwards. At the same time, the stirring rod 30 can be used to stir it. Through the above settings, the refractory material can be kept evenly mixed to a certain extent, avoiding local high concentrations that may clog the pipes or nozzles. At the same time, the uniform mixing of the material can also ensure that the composition of the refractory material sprayed onto the converter lining is consistent, avoiding differences in strength and corrosion resistance after furnace lining repair due to uneven local materials, which would affect its service life.

[0031] It should be noted that the PLC controller 33 is an S7-200SMART, used to control the operating status and other parameters of various electrically driven components in the device. In addition, the cylinder 15 is an MDB63-80, the stepper motor 16 is a 57BYG250, the shotcrete pump 24 is a PZG-9C, and the servo motor 27 is an ECMA-C10604S. All of the above electrical components are existing devices or equipment, or devices or equipment that can be implemented with existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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. A rotary spraying device based on a converter, comprising a frame (1), characterized in that: A support frame (2) is fixedly installed at the top of the frame (1). A support plate (3) is fixedly installed horizontally at the top of the support frame (2). A connecting ring (4) is rotatably installed on the left side of the bottom end of the support plate (3). A connecting plate (5) is fixedly installed at the bottom end of the connecting ring (4). A first protective cylinder (6) is fixedly installed at the bottom end of the connecting plate (5) directly below the connecting ring (4). Slide grooves (7) are vertically opened on both sides inside the first protective cylinder (6). A stabilizing rod (8) is vertically fixedly installed inside each set of slide grooves (7). A second protective cylinder is slidably installed inside the first protective cylinder (6). (9) The top of both sides of the second protective cylinder (9) are slidably connected to the corresponding groove (7) and slidably connected to the corresponding stabilizing rod (8). A double passage (10) is vertically and fixedly installed at the bottom of the second protective cylinder (9). A nozzle (11) is fixedly installed at the bottom of the double passage (10). A rotary joint (21) is vertically and fixedly installed on the connecting plate (5) at the middle position of the connecting ring (4). A telescopic hose (22) is fixedly and sealed at the bottom of the rotary joint (21). The other end of the telescopic hose (22) is sealed and connected to the double passage (10).

2. The rotary spraying device based on a converter according to claim 1, characterized in that: A fixing plate (12) is fixedly installed on the bottom of the left outer wall of the second protective cylinder (9). A cylinder (13) is fixedly installed on the left side of the bottom of the connecting plate (5). A telescopic rod (14) is fixedly installed at the output end of the cylinder (13). The other end of the telescopic rod (14) is fixedly connected to the fixing plate (12).

3. The rotary spraying device based on a converter according to claim 1, characterized in that: A gear ring (15) is fixedly installed on the outer wall of the connecting ring (4). An L-shaped plate (18) is fixedly installed at the left edge of the bottom end of the support plate (3). A stepper motor (16) is fixedly installed on the left side of the top end of the support plate (3). A drive shaft (17) is fixedly installed at the output end of the stepper motor (16). The other end of the drive shaft (17) is rotatably connected to the L-shaped plate (18). A gear (19) is fixedly installed on the outer wall of the drive shaft (17) at the corresponding position of the gear ring (15). The gear (19) meshes with the gear ring (15).

4. The rotary spraying device based on a converter according to claim 1, characterized in that: A storage tank (20) is fixedly installed at the middle position of the top of the frame (1). A feed inlet (26) is fixedly installed at the top of the storage tank (20). A shotcrete pump (24) is fixedly installed on the right side of the top of the frame (1). A connecting pipe (25) is sealed to the input end of the shotcrete pump (24). The other end of the connecting pipe (25) is sealed to the storage tank (20). A fixed pipe (23) is sealed to the output end of the shotcrete pump (24). The other end of the fixed pipe (23) is sealed to the rotary joint (21).

5. A rotary spraying device based on a converter according to claim 4, characterized in that: A servo motor (27) is fixedly installed at the middle position of the top of the storage tank (20). A rotating shaft (28) is fixedly installed at the output end of the servo motor (27). The bottom end of the rotating shaft (28) is rotatably connected to the inner wall of the bottom end of the storage tank (20). A spiral auger (29) is fixedly installed at the bottom end of the outer wall of the rotating shaft (28). A stirring rod (30) is fixedly installed on the outer wall of the rotating shaft (28) above the spiral auger (29).

6. The rotary spraying device based on a converter according to claim 1, characterized in that: The frame (1) is fixedly equipped with casters (31) at the four corners of the bottom end, and a push handle (32) is fixedly installed at the right edge of the top of the frame (1). A PLC controller (33) is fixedly installed on the push handle (32).

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