VD / VOD furnace dust hood
By designing a VD/VOD furnace dust collector including a base, a column and an oblique arm, the problem of smoke and dust spillover in the prior art is solved, and effective smoke capture and long life of the equipment are achieved.
Patent Information
- Application Number
- CN202411619395.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-02-07
AI Technical Summary
The existing VD/VOD furnaces lack effective smoke-free dust capture measures when feeding wires or temperature sampling, resulting in smoke and dust spillover and affecting the workshop environment.
A VD/VOD furnace dust collector is designed, including a base, column and oblique arm. The dust collector is driven by rotary drive motor and gear disk to rotate, and uses oblique arm tubes and suction cups to capture smoke and dust, and through specific structures and materials Ensure the stability and service life of the equipment.
It achieves that smoke and dust will not overflow during the wire feeding and temperature sampling process, extends the service life of the equipment and reduces the frequency of on-site equipment inspections.
Smart Images
Figure CN119394045A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a dust removal device, in particular to a VD / VOD furnace dust removal hood. Background Art
[0002] VD (Vacuum Decarburization) is a widely used vacuum refining furnace, which can effectively reduce the hydrogen and nitrogen content in steel, remove oxygen in steel through carbon-oxygen reaction, and remove sulfur in steel through the full reaction of basic slag and molten steel. AOD (argon oxygen decarburization furnace) is a refining furnace for argon oxygen refining.
[0003] However, most of the existing VD / VOD furnaces and other refining devices have no smoke capture measures when feeding wire or taking temperature samples, causing smoke to overflow and affect the workshop environment.
[0004] Therefore, the configuration of the known VD / VOD furnace has the above-mentioned inconveniences and problems. Summary of the invention
[0005] The purpose of the present invention is to provide a safe and reliable VD / VOD furnace dust removal hood.
[0006] To achieve the above purpose, the technical solution of the present invention is: A VD / VOD furnace dust removal hood comprises a base, a column, and an inclined arm, and is characterized in that: The base is a cylindrical base, a flange is provided at the lower opening of the cylindrical base, a plurality of triangular reinforcing ribs are provided in the circumferential direction of the cylindrical base and the flange, the flange is welded to the square bottom plate to form a stable base, a rotating drive motor and a reducer are provided at the upper edge of the base, and a gear plate is provided at the output end of the motor; The column is a closed top cylinder, the bottom end of the column is connected by bolts, and is connected through a slewing bearing unit, and the slewing bearing unit includes a bearing and a column gear plate; The oblique arm comprises an oblique arm tube and a truss, one end of the oblique arm tube is sealed and connected to the top of the column, and the other end is provided with a suction plate, the truss comprises two horizontal rods arranged in parallel at intervals, one end of the horizontal rod is fixedly welded to the middle of the column, and the other end is fixedly welded to the suction plate; Wherein: the motor gear plate is meshed with the column gear plate, and the dust cover is driven by the motor to rotate; the angle between the axis of the inclined arm tube and the horizontal rod is 15 degrees, and a limiting device is provided on the edge of the square bottom plate;.
[0007] The VD / VOD furnace dust removal hood of the present invention can be further implemented by adopting the following technical measures.
[0008] The aforementioned VD / VOD furnace dust hood, wherein the suction disc is disc-shaped, the disc diameter is ≥5000mm, and the height difference of the lower edge of the suction disc shall not be greater than 3mm.
[0009] The above-mentioned VD / VOD furnace dust removal hood, wherein the suction plate topcoat adopts H-150 heat-resistant anticorrosive primer.
[0010] The aforementioned VD / VOD furnace dust removal hood, wherein the height of the column is ≥5300mm and the diameter is 1200mm.
[0011] The aforementioned VD / VOD furnace dust removal hood, wherein the height from the suction plate to the base is ≥3000mm.
[0012] After adopting the above technical solution, the VD / VOD furnace dust removal hood of the present invention has the following advantages: 1. The dust cover has a simple structure and is easy to make; 2. The dust cover has a long service life and does not deform, which reduces the frequency of equipment replacement by on-site equipment inspection personnel; 3. Ensure that smoke and dust do not overflow during wire feeding and temperature measurement and sampling. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 A schematic diagram of the three-dimensional structure of a dust cover according to an embodiment of the present invention; Figure 2 A side view of a dust cover according to an embodiment of the present invention; Figure 3 for Figure 2 Cross-sectional view of CC; Figure 4 A schematic diagram of the rotating structure of the dust cover according to an embodiment of the present invention; Figure 5 A top view of a dust cover according to an embodiment of the present invention.
[0014] In the figure: 1 dust cover, 2 horizontal rod, 3 bolt, 6 column, 7 slewing bearing, 13 small gear, 14 reducer, 15 reinforcing rib, 17 limit device. DETAILED DESCRIPTION
[0015] The present invention is further described below in conjunction with embodiments and accompanying drawings.
[0016] Example 1 Please refer to Figure 1 , Figure 1 The VD / VOD furnace dust removal hood of the present invention comprises a base, a column and an inclined arm.
[0017] Please refer to Figure 2-Figure 5The base is a cylindrical base, a flange is provided at the bottom of the cylindrical base, a plurality of triangular reinforcing ribs 15 are provided in the circumferential direction of the cylindrical base and the flange, the flange is welded to the square bottom plate to form a stable base, a rotating drive motor and a reducer are provided at the upper edge of the base, and a gear plate is provided at the output end of the motor; The column 6 is a closed cylinder at the top, the bottom of the column is connected by bolts 3, and is connected through a slewing bearing 7 unit, and the slewing bearing unit includes a bearing and a column gear plate; The oblique arm includes an oblique arm tube and a truss. One end of the oblique arm tube is sealed and connected to the top of the column, and the other end is provided with a suction cup of the dust cover 1. The truss includes two horizontal rods 2 arranged in parallel at intervals. One end of the horizontal rod is fixedly welded to the middle of the column, and the other end is fixedly welded to the suction cup. Wherein: the motor pinion plate 13 is meshed with the column gear plate, and the dust cover is driven to rotate by the reducer 14; the angle between the axis of the inclined arm tube and the horizontal rod is 15 degrees, and a limit device 17 is provided on the edge of the square bottom plate, and the limit device is three steel piles arranged side by side; the suction disc is disc-shaped, the disc diameter is ≥5000mm, and the height difference of the lower edge of the suction disc shall not be greater than 3mm.
[0018] The above-mentioned VD / VOD furnace dust removal hood, wherein the suction plate surface paint adopts H-150 heat-resistant anticorrosive primer. The height of the column is 5300mm, the diameter is 1200mm. The height from the suction plate to the base is 3000mm.
[0019] The use method of the VD / VOD furnace dust removal hood of the present invention: When the ladle needs to be hoisted into the 1# vacuum tank, or the 1# vacuum tank is in vacuum treatment, the dust hood rotates to the standby position and is in the high position. Before wire feeding, the dust hood rotates to the top of the ladle and starts wire feeding. The smoke emitted during wire feeding is sucked away by the dust hood.
[0020] The smoke captured by the dust hood flows along the rotating column body and is sent to the dust removal duct (the rotating column body also serves as the dust removal duct).
[0021] The smoke hood design of this device adopts special structure and material, which ensures its long service life and no deformation, and reduces the frequency of equipment replacement by on-site equipment inspection personnel. The special structure of this device also ensures that smoke and dust will not overflow during wire feeding and temperature measurement and sampling.
[0022] Technical requirements of the VD / VOD furnace dust removal hood of the present invention: 1. Steel and profiles must be straight without distortion or twisting, and their deflection and unevenness must not exceed 1 / 1000.
[0023] 2. After the hood is installed, the height difference of its lower edge shall not exceed 3mm.
[0024] 3. The outer surface of the dust hood is painted, including: rust removal by spraying, rust removal grade Sa2.5; 2 coats of F-150 heat-resistant anti-corrosion primer, 0.07mm thick; topcoat uses H-150 heat-resistant anti-corrosion primer, 2 coats, 0.08mm thick; Equipment topcoat color code: smoke hood: silver gray B04 (fire-resistant paint); other equipment: spinning green GY02 (magnetic paint).
[0025] 4. After all the equipment is assembled in the factory, a rotation test is required. The hood should rotate flexibly without any jamming or stagnation.
[0026] The above embodiments are only for the purpose of illustrating the present invention, but not for limiting the present invention. A person skilled in the art may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.
Claims
1. A VD / VOD furnace dust removal hood, comprising a base, a column, and an inclined arm, characterized in that: The base is a cylindrical base, a flange is provided at the bottom of the cylindrical base, a plurality of triangular reinforcing ribs are provided in the circumferential direction of the cylindrical base and the flange, the flange is welded to the square bottom plate to form a stable base, a rotating drive motor and a reducer are provided at the edge of the upper opening of the base, a gear plate is provided at the output end of the motor; a limit device is provided at the edge of the square bottom plate; The column is a closed top cylinder, the bottom end of the column is connected by bolts, and is connected through a slewing bearing unit, and the slewing bearing unit includes a bearing and a column gear plate; The oblique arm comprises an oblique arm tube and a truss, one end of the oblique arm tube is sealed and connected to the top of the column, and the other end is provided with a suction plate, the truss comprises two horizontal rods arranged in parallel at intervals, one end of the horizontal rod is fixedly welded to the middle of the column, and the other end is fixedly welded to the suction plate; Wherein: the motor gear plate is meshed with the column gear plate, and the dust cover is driven by the motor to rotate; the angle between the axis of the inclined arm tube and the horizontal rod is 15 degrees.
2. The VD / VOD furnace dust removal hood according to claim 1, characterized in that: The suction disc is disc-shaped, with a disc diameter of ≥5000mm, and the height difference of the lower edge of the suction disc shall not be greater than 3mm.
3. The VD / VOD furnace dust removal hood according to claim 1, characterized in that: The suction plate topcoat adopts H-150 heat-resistant anticorrosive primer.
4. The VD / VOD furnace dust removal hood according to claim 1, characterized in that: The height of the column is ≥5300mm and the diameter is 1200mm.
5. The VD / VOD furnace dust removal hood according to claim 1, characterized in that: The height from the suction plate to the base is ≥3000 mm.