Scraping device for discharge hole of direct hearth furnace

Abstract

The utility model relates to a scraping device of a discharge port of a straight hearth furnace, which comprises a walking track, a walking frame body and a scraping plate, the walking track comprises two tracks which are arranged in parallel at an interval, the walking frame body is arranged between the two tracks, the scraping plate is attached to the walking frame body, a rack is fixedly arranged on each track, a rotating shaft is rotatably arranged on the walking frame body, and the rack is connected with the rotating shaft. The two ends of the rotating shaft are respectively in hub connection with a gear meshed with the rack, and the walking driving device is used for driving the rotating shaft to rotate forwards or reversely, so that the walking frame body can walk back and forth on the walking track. The scraping device for the discharge port of the straight hearth furnace is simple in structure, small in occupied space and low in cost.

Description

Technical Field

[0001] The utility model relates to metallurgical equipment, in particular to a scraping device for the discharge port of a straight-bottom furnace. Background Art

[0002] The discharge port of a metallurgical straight-bottom furnace is usually equipped with a scraping device for scraping and collecting the solid waste separated from the discharge port of the straight-bottom furnace. The existing scraping devices generally have the disadvantages of complex structure, large occupied space, high cost, etc., and are increasingly unable to meet the current production requirements. Summary of the Utility Model

[0003] In view of the above problems, the utility model proposes a scraping device for the discharge port of a straight-bottom furnace with optimized structure.

[0004] The utility model is realized by adopting the following technical scheme:

[0005] The utility model proposes a scraping device for the discharge port of a straight-bottom furnace, which includes a walking track, a walking frame body and a scraper. The walking track includes two parallel and spaced rails. The walking frame body is arranged between the two rails. The scraper is attached to the walking frame body. A rack is fixedly arranged on each rail. A rotating shaft is rotatably arranged on the walking frame body. Two gears meshing with the rack are respectively hub-connected to both ends of the rotating shaft. The device further includes a walking driving device for driving the rotating shaft to rotate forward or backward so that the walking frame body can walk back and forth on the walking track.

[0006] Preferably, a conical wheel is further hub-connected to the rotating shaft. A ramp surface is arranged on the rail. The conical surface of the conical wheel is in rolling contact with the ramp surface of the rail.

[0007] Preferably, the device further includes a lifting frame body and a lifting driving device. The lifting driving device is installed on the walking frame body and is drivingly connected to the lifting frame body to control the lifting of the lifting frame body. The scraper is fixedly installed on the lifting frame body and is indirectly attached to the walking frame body.

[0008] Preferably, the scraper is detachably fixedly installed on the lifting frame body.

[0009] Preferably, the scraper is fixedly installed on the lifting frame body by threaded connection.

[0010] Preferably, the material of the scraper is X165CrMoV12, and its applicable temperature is 100-500 °C.

[0011] The utility model has the following beneficial effects: The scraping device for the discharge port of the straight-bottom furnace of the utility model has a simple structure and small occupied space. The height of the scraper can be adjusted by lifting to adapt to different working conditions, and the scraper can be quickly replaced. Description of the Drawings

[0012] Figure 1 is a perspective schematic view of the scraping device at the discharge opening of the straight-bottom furnace in the embodiment;

[0013] Figure 2 is a front view of the scraping device at the discharge opening of the straight-bottom furnace in the embodiment;

[0014] Figure 3 is a side view of the scraping device at the discharge opening of the straight-bottom furnace in the embodiment. Detailed implementation manners

[0015] To further illustrate each embodiment, the present invention provides accompanying drawings. These drawings are a part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0016] Now, the present invention will be further described in combination with the accompanying drawings and specific implementation manners.

[0017] Refer to Figures 1-3 As shown, as a preferred embodiment of the present invention, a scraping device for the discharge opening of a straight-bottom furnace is provided, which can be arranged at the discharge opening of the straight-bottom furnace and is used to scrape and collect the solid waste separated at the discharge opening of the straight-bottom furnace. The scraping device includes a traveling track 1, and the traveling track 1 includes two parallel and spaced-apart rails 10. A traveling frame 2 is arranged between the two rails 10, and a scraper 9 is attached to the traveling frame 2. A rack 11 is fixedly arranged on each rail 10, and a rotating shaft 3 is rotatably arranged on the traveling frame 2. Two gears 4 meshing with the rack 11 are respectively hub-connected to both ends of the rotating shaft 3. The scraping device further includes a traveling driving device 5, and the traveling driving device 5 is used to drive the rotating shaft 3 to rotate forward or backward. When the rotating shaft 3 rotates forward or backward, the gears 4 are driven to roll meshingly on the rack 11, so that the traveling frame 2 can move back and forth on the traveling track 1. The scraper 9 attached to the traveling frame 2 realizes the function of scraping during the back-and-forth movement.

[0018] The traveling driving device 5 can be realized by an existing rotation driving device, such as a motor. The scraper 9 can be directly attached to the traveling frame 2, such as directly fixedly connected to the traveling frame 2, or can be indirectly attached to the traveling frame 2, such as being fixed relative to the traveling frame 2 through an intermediate connecting member.

[0019] The scraping device for the discharge opening of the straight-bottom furnace of the present invention has a simple structure, occupies a small space, and has a very low cost.

[0020] Such as Figure 1 and Figure 3, a conical wheel 6 is also connected to the rotating shaft 3 through a hub. A ramp surface 12 is provided on the rail 10, and the conical surface of the conical wheel 6 is in rolling contact with the ramp surface 12 of the rail 10.

[0021] As Figure 1 and Figure 2 , in this embodiment, the scraping device further includes a lifting frame 8 and a lifting driving device 7. The lifting driving device 7 is installed on the traveling frame 2. The lifting driving device 7 is drivingly connected to the lifting frame 8 to control the lifting of the lifting frame 8. The scraping plate 9 is fixedly installed on the lifting frame 8 and thus indirectly attached to the traveling frame 2. The lifting driving device 7 can be implemented by using existing moving driving devices, such as a linear moving cylinder, a linear stepping motor, etc. The lifting frame 8 is fixedly connected to the output rod of the lifting driving device 7 in this embodiment. By setting like this, the heights of the lifting frame 8 and the scraping plate 9 can be adjusted, and thus different working conditions can be adapted, and the flexibility is better.

[0022] As Figure 2 , in this embodiment, the scraping plate 9 is detachably and fixedly installed on the lifting frame 8 by means of a threaded connection. This can facilitate the disassembly and replacement of the scraping plate 9.

[0023] The material of the scraping plate 9 is preferably X165CrMoV12, and its applicable temperature is 100 - 500 °C. This kind of stainless steel has good corrosion resistance, can maintain a firm structure at normal temperature, and is not easily eroded by the external environment. It also has good mechanical properties and thermal stability and is suitable for working at the discharge port of a straight-bottom furnace at high temperature.

[0024] Although the present utility model is specifically shown and introduced in combination with the preferred implementation embodiments, those skilled in the art should understand that without departing from the spirit and scope of the present utility model defined by the appended claims, various changes made to the present utility model in terms of form and details all fall within the protection scope of the present utility model.

Claims

1. A scraping device for the discharge port of a straight-bottom furnace, characterized in that: It includes a walking track, a walking frame and a scraper. The walking track includes two parallel and spaced rails. The walking frame is arranged between the two rails. The scraper is attached to the walking frame. A rack is fixedly provided on each rail. A rotating shaft is rotatably arranged on the walking frame. Two gears meshing with the rack are respectively hub-connected to both ends of the rotating shaft. It further includes a walking driving device which is used to drive the rotating shaft to rotate forward or backward so that the walking frame can move back and forth on the walking track.

2. The scraping device for the discharging port of the straight-bottom furnace according to claim 1, wherein: A conical wheel is further hub-connected to the rotating shaft. A ramp surface is provided on the rail. The conical surface of the conical wheel is in rolling contact with the ramp surface of the rail.

3. The scraping device for the discharging port of the straight-bottom furnace according to claim 1, characterized in that: It further includes a lifting frame and a lifting driving device. The lifting driving device is installed on the walking frame. The lifting driving device is drivingly connected to the lifting frame to control the lifting of the lifting frame. The scraper is fixedly installed on the lifting frame and thus indirectly attached to the walking frame.

4. The scraping device for the discharge port of the straight-bottom furnace according to claim 3, characterized in that: The scraper is detachably fixedly installed on the lifting frame.

5. The scraping device for the discharging port of the straight-bottom furnace according to claim 4, wherein: The scraper is fixedly installed on the lifting frame by threaded connection.

6. The scraping device for the discharge port of the straight-bottom furnace according to claim 1, wherein: The material of the scraper is X165CrMoV12.

Images