Scale removing device and method for RH vacuum system

Abstract

The invention discloses an RH vacuum system scaling removing device and method in the technical field of RH vacuum system overhaul. The RH vacuum system scaling removing device comprises a spiral conveying mechanism, and the spiral conveying mechanism is used for axially conveying scaling materials; the cutterhead mincing assembly is in transmission connection with the operation end of the spiral conveying mechanism and is used for smashing scales in the pipeline; the power assembly is in transmission connection with the operation end of the spiral conveying mechanism and is used for driving the cutterhead mincing assembly to rotate; the supporting and adjusting assembly is arranged below the spiral conveying mechanism and enables the spiral conveying mechanism to rotate horizontally; and the control assembly is in control connection with the power assembly and used for controlling rotation of the cutterhead mincing assembly. Mechanical operation is used for replacing manual operation for scale removal operation, so that the operation efficiency is improved, and the potential safety hazard that personnel enter toxic, harmful and limited space for operation is also avoided.

Description

Technical Field

[0001] The invention relates to the technical field of RH vacuum system maintenance, and in particular to a RH vacuum system scaling removal device and a removal method. Background Art

[0002] The full name of RH refining is RH vacuum cycle degassing refining method. RH vacuum system equipment is a kind of molten steel secondary refining process equipment used to produce high-quality steel.

[0003] The steel plant's RH vacuum system pipeline is dusty and scale-accumulated, and needs to be cleaned regularly every two months. The dust in the pipeline forms lumps. Currently, manual cleaning is used, which involves first using a crowbar to pry them loose and then using a shovel to remove them. However, the dust lumps are hard, and not only do they require a crowbar and a sledgehammer or a pneumatic pick to pry them loose, but the space is small and the construction efficiency is low. At the same time, when cleaning deep into the pipeline, workers need to enter, but the inside of the pipeline is a toxic and harmful working environment with limited space, which poses certain safety risks.

[0004] Therefore, how to improve the efficiency of removing dust and scaling in the RH vacuum system pipeline and ensure the personal safety of operators has become a technical problem that needs to be solved urgently by technical personnel in this field. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a RH vacuum system scaling removal device to solve the technical problems of low efficiency and safety risks of existing manual removal.

[0006] The technical solution adopted by the present invention is: a RH vacuum system scaling removal device, comprising:

[0007] A screw conveying mechanism, wherein the screw conveying mechanism is used for axially conveying scale;

[0008] A cutter disc mincing assembly, which is drivingly connected to the working end of the screw conveying mechanism and is used to crush scale inside the pipeline;

[0009] A power assembly, the power assembly is drivingly connected to the operating end of the screw conveying mechanism and is used to drive the cutter disc mincing assembly to rotate;

[0010] A support adjustment component, which is arranged below the screw conveying mechanism and enables the screw conveying mechanism to rotate horizontally;

[0011] A control component is control-connected with the power component and is used to control the rotation of the cutter disc mincing component.

[0012] Preferably, the spiral conveying mechanism comprises a rotating shaft, a spiral blade and a barrel, the rotating shaft is coaxially arranged in the barrel, the spiral blade is fixedly arranged on the rotating shaft, and the operating end of the barrel is provided with a discharge port.

[0013] Preferably, the cutter disc mincing assembly includes an auger, a reamer and a hollow drill, the hollow drill is coaxially arranged on the outside of the rotating shaft, the reamer is fixedly connected between the rotating shaft and the hollow drill, and the auger is coaxially fixedly connected to the rotating shaft.

[0014] Preferably, an end cover is fixedly connected to the end of the cylinder, and operating rods are fixedly connected to both sides of the end cover, and the operating rods are arranged parallel to the rotating shaft.

[0015] Preferably, the power assembly includes a driving motor and a reducer, the driving motor is drivingly connected to the reducer, the reducer is fixedly connected to the end cover, and the rotating shaft passes through the end cover and is drivingly connected to the reducer.

[0016] Preferably, the support adjustment assembly includes a saddle, a worm gear lifting mechanism, a handwheel, a guide column, a guide cylinder, a lifting plate and a movable base, the worm gear lifting mechanism is fixedly arranged on the movable base, the two guide cylinders are arranged on both sides of the worm gear lifting mechanism and are fixedly connected to the movable base, the lifting plate is arranged above the worm gear lifting mechanism and is fixedly connected to the worm gear lifting mechanism, the handwheel is fixedly connected to the worm gear lifting mechanism, the top end of the guide column is fixedly connected to the lifting plate, the bottom end of the guide column is slidably connected in the guide cylinder, the saddle is arranged above the lifting plate, and the saddle is horizontally rotatably connected to the lifting plate.

[0017] Preferably, a U-shaped handle is fixedly connected to the cylinder of the screw conveying mechanism.

[0018] Another object of the present invention is to provide a method for removing scale from an RH vacuum system, wherein the method uses the above-mentioned RH vacuum system scale removal device, and the method comprises the following steps:

[0019] Open the pipe manhole of the RH vacuum system and move the RH vacuum system scaling removal device to the manhole;

[0020] Pushing the screw conveying mechanism to move until the cutter disc mincing assembly enters the RH vacuum system through the manhole;

[0021] The control assembly controls the rotation of the cutter disc mincing assembly, and the axial movement and horizontal rotation of the screw conveying mechanism cause the cutter disc mincing assembly to abut against the scale on the pipeline and break the scale;

[0022] The height of the screw conveying mechanism is adjusted by the support adjustment assembly.

[0023] Beneficial effects of the present invention:

[0024] The present invention adopts a mechanical cleaning method. A cutter disc mincing assembly is transmission-connected to one end of a spiral conveying mechanism, and a power assembly is transmission-connected to the other end of the spiral conveying mechanism. The cutter disc mincing assembly can be driven by the power assembly to crush scale inside the pipeline, and the spiral conveying mechanism is used to transport the minced scale to the outside of the pipeline. A support adjustment assembly is arranged below the bolt conveying mechanism. The height and axial direction of the spiral conveying mechanism can be adjusted by adjusting the support assembly, so that the cutter disc mincing assembly can perform 360° clean-up operation on scale inside the pipeline without dead angles, which can effectively improve the cleaning efficiency of scale and ensure the personal safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the RH vacuum system scaling removal device of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the spiral conveying mechanism after the cylinder body is removed according to the present invention;

[0027] Figure 3 It is a structural schematic diagram of the cylinder;

[0028] Figure 4 It is a schematic diagram of the structure of the cutter disc mincing assembly;

[0029] Figure 5 It is a schematic diagram of the connection between the spiral conveying mechanism, the cutter disc mincing assembly and the power assembly;

[0030] Figure 6 A schematic diagram of the structure of the support adjustment component.

[0031] Description of reference numerals in the figures:

[0032] 10. Screw conveying mechanism;

[0033] 11. Rotating shaft; 12. Spiral blade; 13. Cylinder; 14. Discharge port; 15. End cover; 16. Operating lever; 17. U-shaped handle;

[0034] 20. Cutter disc mincing assembly;

[0035] 21. Auger drill; 22. Reamer drill; 23. Hollow drill;

[0036] 30. Power components;

[0037] 31. Driving motor; 32. Speed ​​reducer;

[0038] 40. Support adjustment assembly;

[0039] 41. Saddle; 42. Worm gear lifting mechanism; 43. Hand wheel; 44. Guide column; 45. Guide cylinder; 46. Lifting plate; 47. Moving base;

[0040] 50. Control components. DETAILED DESCRIPTION

[0041] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0045] Examples, such as Figure 1-Figure 6 As shown, a RH vacuum system scaling removal device comprises:

[0046] The screw conveying mechanism 10 can axially convey the crushed scale, and is used to convey the scale from the inside of the pipeline of the RH vacuum system to the outside.

[0047] The cutter disc mincing assembly 20 is arranged at the working end of the screw conveying mechanism 10 and is transmission-connected to the screw conveying mechanism 10 for crushing scale inside the pipeline and allowing the crushed scale to enter the screw conveying mechanism 10 .

[0048] The power assembly 30 is arranged at the operating end of the screw conveying mechanism 10 and is transmission-connected to the screw conveying mechanism 10 to drive the cutter disc mincing assembly 20 to rotate and drive the screw conveying mechanism 10 to convey scale to the outside of the pipeline.

[0049] The support adjustment assembly 40 is disposed below the screw conveying mechanism 10 , and the support adjustment assembly 40 is connected to the screw conveying mechanism 10 and enables the screw conveying mechanism 10 to rotate horizontally.

[0050] The control assembly 50 is control-connected to the power assembly 30 , and the control assembly 50 can control the rotation of the cutter disc mincing assembly 20 .

[0051] The present application adopts a mechanical cleaning method. A cutter disc mincing assembly 20 is transmission-connected to one end of the spiral conveying mechanism 10, and a power assembly 30 is transmission-connected to the other end of the spiral conveying mechanism 10. The power assembly 30 can drive the cutter disc mincing assembly 20 to crush the scale inside the pipeline, and the spiral conveying mechanism 10 is used to transport the minced scale to the outside of the pipeline; the present application is provided with a support adjustment assembly 40 below the spiral conveying mechanism 10, and the height and axial direction of the spiral conveying mechanism 10 can be adjusted by the support adjustment assembly 40, so that the cutter disc mincing assembly 20 can perform a 360° clean operation on the scale inside the pipeline without dead ends, which can effectively improve the scale removal efficiency and ensure the personal safety of the operators.

[0052] In a specific embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, the screw conveying mechanism 10 includes a rotating shaft 11, a spiral blade 12 and a barrel 13; wherein the rotating shaft 11 is coaxially arranged in the barrel 13, the spiral blade 12 is fixedly mounted on the rotating shaft 11, and the operating end of the barrel 13 is provided with a discharge port 14, which is connected to the inner cavity of the barrel 13 for discharging the scale.

[0053] Preferably, Figure 5 As shown, an end cover 15 is coaxially fixedly connected to the operating end of the cylinder 13, and two operating rods 16 are fixedly connected on both sides of the end cover 15 in a one-to-one correspondence. The operating rods 16 are arranged parallel to the rotating shaft 11 to facilitate the operator to control the horizontal rotation of the screw conveying mechanism 10 and promote the axial movement of the screw conveying mechanism 10.

[0054] More preferably, Figure 1 , Figure 5As shown, the power assembly 30 includes a driving motor 31 and a reducer 32, the driving motor 31 is transmission-connected to the reducer 32, the reducer 32 is fixedly connected to the end cover 15 of the operating end of the cylinder 13, the rotating shaft 11 passes through the end cover 15 and is transmission-connected to the reducer 32, so that the driving motor 31 drives the rotating shaft 11 to rotate, thereby driving the cutter disc mincing assembly 20 and the spiral blades 12 to rotate, thereby achieving the crushing of scale inside the pipeline and transporting it outward.

[0055] More preferably, Figure 3 As shown, a U-shaped handle 17 is fixedly connected to the cylinder 13 of the screw conveying mechanism 10 . The U-shaped handle 17 is not only convenient for operators to drive the screw conveying mechanism 10 to rotate horizontally and move axially, but also convenient for lifting and transporting the screw conveying mechanism 10 .

[0056] In a specific embodiment, if Figure 1 , Figure 4 As shown, the cutter disc mincing assembly 20 includes an auger 21, a reamer 22 and a hollow drill 23; wherein the hollow drill 23 is coaxially arranged on the outside of the rotating shaft 11, and the hollow drill 23 and the cylinder 13 can rotate relative to each other; the reamer 22 is fixedly connected between the rotating shaft 11 and the hollow drill 23, and is used to drive the hollow drill 23 to rotate; the auger 21 is coaxially and fixedly connected to the rotating shaft 11.

[0057] This arrangement is because: when crushing the scale inside the pipeline, the spiral drill 21 can first drill into the scale, thereby achieving a radial fixed connection between the rotating shaft 11 and the scale inside the pipeline to prevent the cutter disc crushing assembly 20 from shaking; the hollow drill 23 can separate the scale inside the pipeline into cylindrical shapes, and the reaming drill 22 can crush the cylindrical scale to facilitate the spiral conveying mechanism 10 to transport the scale outward.

[0058] Preferably, the auger 21 is threadedly connected to the rotating shaft 11 .

[0059] In a specific embodiment, if Figure 1 , Figure 6As shown, the support adjustment assembly 40 includes a saddle 41, a worm gear lifting mechanism 42, a hand wheel 43, a guide column 44, a guide cylinder 45, a lifting plate 46 and a movable base 47; wherein the worm gear lifting mechanism 42 is fixedly arranged on the movable base 47; the number of the guide cylinders 45 is two, and the two guide cylinders 45 are arranged on both sides of the worm gear lifting mechanism 42, and the bottom end of the guide cylinder 45 is fixedly connected to the movable base 47; the lifting plate 46 is arranged above the worm gear lifting mechanism 42, and the lifting plate 46 is fixedly connected to the worm of the worm gear lifting mechanism 42, and the hand wheel 43 is fixedly connected to the worm wheel of the worm gear lifting mechanism 42, so as to drive the lifting plate 46 to rise or fall through the rotation of the hand wheel 43 in coordination with the worm gear transmission. There are two guide columns 44, and the top end of the guide column 44 is fixedly connected to the lifting plate 46, and the bottom end of the guide column 44 is slidably connected in the guide cylinder 45, which is used to guide the lifting and lowering of the lifting plate 46; the saddle 41 is arranged above the lifting plate 46, and the saddle 41 is horizontally rotatably connected to the lifting plate 46 through a bearing, so that the saddle 41 can rotate horizontally 360°, thereby realizing the height adjustment and horizontal rotation of the screw conveying mechanism 10.

[0060] Embodiment, a method for removing scale from a RH vacuum system, the method using the above-mentioned RH vacuum system scale removal device, the method comprising the following steps:

[0061] Open the pipe manhole of the RH vacuum system and move the RH vacuum system scaling removal device to the manhole.

[0062] Specifically, open the pipe manhole of the RH vacuum system, and after the RH vacuum system scale removal device arrives at the work site, use the power supply according to relevant regulations, and after the power is turned on, check whether the cutter head mincing component 20 rotates in the direction of the marked arrow. If the rotation direction is opposite, disconnect the power supply in time, replace the phase line, and then conduct a no-load test run. After the debugging is completed, one person pushes the RH vacuum system scale removal device to the pipe manhole of the RH vacuum system, and the other person starts it remotely through the control component 50.

[0063] The screw conveying mechanism 10 is pushed to move until the cutter disc mincing assembly 20 enters the RH vacuum system through the manhole.

[0064] The cutter disc mincing assembly 20 is controlled to rotate by the control assembly 50 , and the cutter disc mincing assembly 20 is brought into contact with the scale on the pipeline and crushes the scale by the axial movement and horizontal rotation of the screw conveying mechanism 10 .

[0065] Specifically, the cutter disc mincing assembly 20 is pressed against the scale, and a construction worker holds the operating lever 16 and forcefully presses the cutter disc mincing assembly 20 against the scale, while mincing and conveying the scale until the scale is completely removed.

[0066] During the scale removal process, it is necessary to adjust the height of the screw conveying mechanism 10 through the support adjustment component 40 to remove scale at different heights inside the pipeline.

[0067] Specifically, the operator can timely adjust the horizontal angle of the cutter disc mincing assembly 20 through the support adjustment assembly 40 so that the cutter disc mincing assembly 20 can have more contact with the scale to improve the cleaning efficiency.

[0068] The working principle of the cleaning device of the present invention is as follows:

[0069] The cleaning device in the present application is mainly composed of a screw conveying mechanism 10, a cutter disc mincing assembly 20, a power assembly 30, a support adjustment assembly 40 and a control assembly 50. The power assembly 30 drives the screw conveying mechanism 10 and the cutter disc mincing assembly 20 to rotate, thereby achieving the crushing and transportation of the scale, thereby replacing manual scale crushing and cleaning work.

[0070] Compared with the prior art, this application has at least the following beneficial technical effects:

[0071] The present application uses machinery to replace manual labor to perform scaling removal operations, which not only improves work efficiency, but also avoids the safety hazards of personnel entering toxic and harmful and confined spaces for operations.

[0072] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A RH vacuum system scaling removal device, characterized in that: include: A screw conveying mechanism (10), wherein the screw conveying mechanism (10) is used for axially conveying scale; A cutter disc crushing assembly (20), the cutter disc crushing assembly (20) being drivingly connected to the working end of the screw conveying mechanism (10) and used for crushing scale inside the pipeline; A power assembly (30), the power assembly (30) being transmission-connected to the operating end of the screw conveying mechanism (10) and used for driving the cutter disc mincing assembly (20) to rotate; A support adjustment component (40), wherein the support adjustment component (40) is arranged below the screw conveying mechanism (10) and enables the screw conveying mechanism (10) to rotate horizontally; A control component (50) is connected to the power component (30) for controlling the rotation of the knife disc mincing component (20).

2. A RH vacuum system scaling removal device according to claim 1, characterized in that: The screw conveying mechanism (10) comprises a rotating shaft (11), a spiral blade (12) and a barrel (13); the rotating shaft (11) is coaxially arranged in the barrel (13); the spiral blade (12) is fixedly arranged on the rotating shaft (11); and a discharge port (14) is provided at the operating end of the barrel (13).

3. A RH vacuum system scaling removal device according to claim 2, characterized in that: The cutter disc mincing assembly (20) comprises an auger (21), a reamer (22) and a hollow drill (23); the hollow drill (23) is coaxially arranged outside the rotating shaft (11); the reamer (22) is fixedly connected between the rotating shaft (11) and the hollow drill (23); and the auger (21) is coaxially fixedly connected to the rotating shaft (11).

4. The RH vacuum system scaling removal device according to claim 2, characterized in that: An end cover (15) is fixedly connected to the end of the cylinder (13), and operating rods (16) are fixedly connected to both sides of the end cover (15), and the operating rods (16) are arranged parallel to the rotating shaft (11).

5. A RH vacuum system scaling removal device according to claim 4, characterized in that: The power assembly (30) comprises a driving motor (31) and a reducer (32), wherein the driving motor (31) is transmission-connected to the reducer (32), the reducer (32) is fixedly connected to the end cover (15), and the rotating shaft (11) passes through the end cover (15) and is transmission-connected to the reducer (32).

6. The RH vacuum system scaling removal device according to claim 1, characterized in that: The support adjustment assembly (40) comprises a saddle (41), a worm gear lifting mechanism (42), a hand wheel (43), a guide column (44), a guide cylinder (45), a lifting plate (46) and a movable base (47). The worm gear lifting mechanism (42) is fixedly arranged on the movable base (47). The two guide cylinders (45) are arranged on both sides of the worm gear lifting mechanism (42) and are fixedly connected to the movable base (47). The lifting plate (46) is arranged above the worm gear lifting mechanism (42) and is fixedly connected to the worm gear lifting mechanism (42). The hand wheel (43) is fixedly connected to the worm gear lifting mechanism (42). The top end of the guide column (44) is fixedly connected to the lifting plate (46). The bottom end of the guide column (44) is slidably connected to the guide cylinder (45). The saddle (41) is arranged above the lifting plate (46), and the saddle (41) is horizontally rotatably connected to the lifting plate (46).

7. The RH vacuum system scaling removal device according to claim 1, characterized in that: A U-shaped handle (17) is fixedly connected to the cylinder (13) of the screw conveying mechanism (10).

8. A method for removing scale from a RH vacuum system, the method using the RH vacuum system scale removal device according to any one of claims 1 to 7, characterized in that: The cleaning method comprises the following steps: Open the pipeline manhole of the RH vacuum system and move the RH vacuum system scaling removal device to the manhole; Pushing the screw conveying mechanism (10) to move until the cutter disc mincing assembly (20) enters the RH vacuum system through the manhole; The control assembly (50) controls the rotation of the cutter disc mincing assembly (20), and the axial movement and horizontal rotation of the screw conveying mechanism (10) cause the cutter disc mincing assembly (20) to abut against the scale on the pipeline and crush the scale; The height of the screw conveying mechanism (10) is adjusted by the support adjustment assembly (40).

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