High-temperature slag vibration filtering device for electroslag

Abstract

The utility model relates to a high-temperature slag material vibration filtering device for electroslag. The high-temperature slag material vibration filtering device comprises a shell, an upper-layer filtering piece and a lower-layer filtering piece, the upper-layer filter part comprises four upper-layer springs, an upper-layer filter screen and an upper-layer filter screen driving device; upper-layer supporting plates are horizontally welded to the corners of the upper portion of the inner wall of the shell; the four upper layer springs are vertically arranged on the four upper layer supporting plates; the lower surface of a frame of the upper-layer filter screen is connected with the tops of four upper-layer springs respectively; the lower-layer filter part comprises four lower-layer springs, a lower-layer filter screen and a lower-layer filter screen driving device; lower supporting plates are horizontally welded to the corners of the lower portion of the inner wall of the shell. The four lower layer springs are vertically arranged on the four lower layer supporting plates; the lower surface of the frame of the lower-layer filter screen is connected with the tops of four lower-layer springs respectively; and a discharge port is formed between the upper-layer filter screen and the lower-layer filter screen on the shell. According to the filtering device capable of filtering metal foreign matters and powder slag, safety and quality production accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mold steel preparation, in particular to a high-temperature slag material vibration filtering device for electroslag. Background Art

[0002] Electroslag remelting steel is a method of melting steel using the resistance heat generated when electric current passes through molten slag as a heat source. Its purpose is to improve metal purity and ingot crystallization. Slag needs to be added to mold steel during the electroslag remelting process. The slag needs to be heated before being poured into the slag trap to remove moisture generated by long-term storage.

[0003] At present, metal markings and welding materials on the slag hopper, and metals such as iron wire in the slag are likely to be added to the crystallizer along with the slag. During the smelting process, they will cause a short circuit between the electrode blank, metal foreign matter, and crystallizer, causing the crystallizer to break down and leak, resulting in production accidents.

[0004] In addition, powder slag with a diameter of less than Φ2mm in the slag is easily exposed to the air and absorbs moisture. During the smelting process, it will cause the molten steel to absorb hydrogen, which is prone to quality defects such as white spots, resulting in serious loss of unqualified materials and serious economic losses.

[0005] Therefore, it is desired to provide a high-temperature slag vibration filtering device for electroslag, which can solve the above-mentioned technical problems. Utility Model Content

[0006] The utility model aims to provide a high-temperature slag vibration filtering device for electroslag, which can filter metal foreign matter and powder slag to avoid safety and quality production accidents.

[0007] In order to achieve the above utility model purpose, the utility model provides a high-temperature slag vibration filtering device for electroslag, comprising a shell, an upper filter element and a lower filter element;

[0008] The cross section of the shell is a square structure;

[0009] The upper filter element comprises four upper springs, an upper filter screen and an upper filter screen driving device;

[0010] The upper corners of the inner wall of the shell are horizontally welded with upper support plates;

[0011] The four upper springs are respectively vertically arranged on four upper support plates, and the four upper springs have the same height;

[0012] The lower surface of the frame of the upper filter screen is connected to the tops of the four upper springs respectively;

[0013] The upper filter screen driving device is used to drive the upper filter screen to vibrate;

[0014] The upper filter is a filter for filtering metal blocks with a diameter of more than 10 mm;

[0015] The lower filter element comprises four lower springs, a lower filter screen and a lower filter screen driving device;

[0016] The lower corners of the inner wall of the shell are horizontally welded with lower support plates;

[0017] The four lower layer springs are respectively arranged vertically on four lower layer support plates;

[0018] The lower surface of the frame of the lower filter screen is connected to the tops of the four lower springs respectively;

[0019] The lower filter screen driving device is used to drive the lower filter screen to vibrate;

[0020] The lower filter screen is a filter screen for filtering slag powder with a diameter of less than 2 mm;

[0021] A discharge port is provided on the shell body between the upper filter screen and the lower filter screen.

[0022] Specifically, the upper filter screen driving device and the lower filter screen driving device each include a vertical rod, a pulley, a cam, a connecting shaft and a motor;

[0023] The two vertical rods are respectively vertically fixed on the bottom of the upper filter screen and the bottom of the lower filter screen;

[0024] The pulley is arranged at the bottom of the vertical rod;

[0025] The two connecting shafts are respectively arranged in the shell to rotate horizontally, and one end of the connecting shaft passes through the outer wall of the shell;

[0026] The output shafts of the two motors are respectively connected to the two connecting shafts to drive the connected connecting shafts to rotate;

[0027] The two cams are respectively fixed on one end of the two connecting shafts located inside the housing and are respectively adapted to corresponding pulleys.

[0028] Furthermore, two limit collars are horizontally arranged in the shell, and the two vertical rods are respectively sleeved on the two limit collars.

[0029] Preferably, among the four lower springs, the heights of the two lower springs located on the same side as the discharge port are lower than the heights of the two lower springs on the other side, and the two lower springs on the other side are of the same height.

[0030] Preferably, the bottom of the shell is an inclined surface, and a sliding door is provided on the lower end of the bottom of the shell.

[0031] The utility model provides a high-temperature slag vibration filtering device for electroslag, which has the following beneficial effects:

[0032] (1) The upper filter element effectively filters out metal with a diameter of more than 10 mm, and the lower filter effectively filters out powder slag with a diameter of less than 2 mm, ensuring the quality of the slag, avoiding major safety accidents caused by mold breakdown, and significantly reducing the occurrence of hydrogen-induced white spot quality problems;

[0033] (2) Easy to use and widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of the housing in this embodiment;

[0035] Figure 2 The cross-sectional view of the housing in this embodiment Figure 1 ;

[0036] Figure 3 This is a schematic structural diagram of a high-temperature slag vibration filtering device for electroslag of this embodiment;

[0037] Figure 4 The cross-sectional view of the housing in this embodiment Figure 2 ;

[0038] Figure 5 The cross-sectional view of the housing in this embodiment Figure 3 . DETAILED DESCRIPTION

[0039] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0040] Example

[0041] The present embodiment provides a high-temperature slag vibration filtering device for electroslag, comprising a housing 1, an upper filter element and a lower filter element.

[0042] The cross section of the housing 1 is a square structure.

[0043] like Figure 1 and Figure 2 As shown, the upper filter element includes four upper springs 2, an upper filter screen 4 and an upper filter screen driving device; upper support plates 3 are horizontally welded at the upper corners of the inner wall of the shell 1; the four upper springs 2 are vertically arranged on the four upper support plates 3, and the four upper springs 2 are at the same height; the lower surface of the frame of the upper filter screen 4 is respectively connected to the top of the four upper springs 2; the upper filter screen driving device is used to drive the upper filter screen 4 to vibrate; the upper filter screen 4 is a filter screen for filtering metal blocks with a filtering diameter of more than 10 mm.

[0044] like Figure 2 As shown, the lower filter element includes four lower springs 5, a lower filter screen 6 and a lower filter screen driving device; lower support plates 7 are horizontally welded at the lower corners of the inner wall of the shell 1; the four lower springs 5 ​​are vertically arranged on the four lower support plates 7 respectively; the lower surface of the frame of the lower filter screen 6 is respectively connected to the top of the four lower springs 5; the lower filter screen driving device is used to drive the lower filter screen 6 to vibrate; the lower filter screen 6 is a filter screen for filtering slag powder with a diameter of less than 2 mm.

[0045] The housing 1 is provided with a discharge port 8 between the upper filter screen 4 and the lower filter screen 6 .

[0046] In this embodiment, if Figure 3 and Figure 4 As shown, the upper filter screen driving device and the lower filter screen driving device both include a vertical rod 9, a pulley 10, a cam 11, a connecting shaft 12 and a motor 13; the two vertical rods 9 are respectively fixed vertically at the bottom of the upper filter screen 4 and the bottom of the lower filter screen 6; the pulley 10 is arranged at the bottom of the vertical rod 9; the two connecting shafts 12 are respectively arranged horizontally in the housing 1, and one end of the connecting shaft 12 passes through the outer wall of the housing 1; the output shafts of the two motors 13 are respectively connected to the two connecting shafts 12, and are used to drive the connected connecting shafts 12 to rotate; the two cams 11 are respectively fixed on one end of the two connecting shafts 12 located in the housing 1, and are respectively adapted to the corresponding pulleys 10. In this way, the motor 13 drives the connecting shaft 12 to rotate, and the cam 11 rotates accordingly. Driven by the vertical rod 9, the upper filter screen 4 and the lower filter screen 6 vibrate, which plays the role of screening slag; because the motor 13 is arranged outside the housing 1, it is avoided to be damaged by high temperature.

[0047] Furthermore, in this embodiment, if Figure 5 As shown, two limit rings 14 are horizontally arranged in the shell 1, and the two vertical rods 9 are respectively sleeved on the two limit rings 14. Such arrangement ensures that the two filter screens vibrate along the vertical direction to prevent the pulley 10 from getting stuck on the corresponding cam 11.

[0048] In this embodiment, among the four lower springs, the height of the two lower springs located on the same side as the discharge port 8 is lower than the height of the two lower springs on the other side, and the two lower springs on the other side are of the same height. In this arrangement, after the upper filter screen filters out the large metal blocks, the slag falls onto the lower filter screen, and the powder slag below Φ2mm in the slag is sieved by the lower filter screen to the bottom of the shell, and the remaining slag falls along the inclined surface of the lower filter screen into the discharge port and is discharged into the slag feeder.

[0049] In this embodiment, if Figure 5 As shown, the bottom of the shell 1 is an inclined surface, and a sliding door 15 is provided on the lower end of the bottom of the shell 1 to facilitate the removal of powder residues with a size of less than Φ2 mm after filtration out of the shell 1.

[0050] When the above-mentioned high-temperature slag vibration filtering device for electroslag is in use, the slag is first poured onto the upper filter screen 4, and the two motors 13 are started respectively. The upper filter screen 4 and the lower filter screen 6 begin to vibrate. The upper filter screen 4 retains the larger particles of metal blocks on the upper filter screen, and the remaining slag falls from the upper filter screen 4 and is then screened by the lower filter screen 6. The powder slag below Φ2mm in the slag is screened by the lower filter screen 6 to the bottom of the shell, and the remaining slag falls along the inclined surface of the lower filter screen into the discharge port and is discharged into the slag feeder, thereby ensuring the quality of the slag, avoiding major safety accidents such as crystallizer breakdown, and greatly reducing the occurrence of hydrogen-induced white spot quality problems.

[0051] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope defined by the claims of this application.

Claims

1. A high-temperature slag vibration filtering device for electroslag, characterized in that: It includes a housing, an upper filter element and a lower filter element; The cross section of the shell is a square structure; The upper filter element comprises four upper springs, an upper filter screen and an upper filter screen driving device; The upper corners of the inner wall of the shell are horizontally welded with upper support plates; The four upper springs are respectively arranged vertically on four upper support plates, and the four upper springs have the same height; The lower surface of the frame of the upper filter screen is connected to the tops of the four upper springs respectively; The upper filter screen driving device is used to drive the upper filter screen to vibrate; The upper filter is a filter for filtering metal blocks with a diameter of more than 10 mm; The lower filter element comprises four lower springs, a lower filter screen and a lower filter screen driving device; The lower corners of the inner wall of the shell are horizontally welded with lower support plates; The four lower layer springs are respectively arranged vertically on four lower layer support plates; The lower surface of the frame of the lower filter screen is connected to the tops of the four lower springs respectively; The lower filter screen driving device is used to drive the lower filter screen to vibrate; The lower filter screen is a filter screen for filtering slag powder with a diameter of less than 2 mm; A discharge port is provided on the shell body between the upper filter screen and the lower filter screen.

2. A high-temperature slag vibration filtering device for electroslag as claimed in claim 1, characterized in that: The upper filter screen driving device and the lower filter screen driving device both include a vertical rod, a pulley, a cam, a connecting shaft and a motor; The two vertical rods are respectively vertically fixed on the bottom of the upper filter screen and the bottom of the lower filter screen; The pulley is arranged at the bottom of the vertical rod; The two connecting shafts are respectively arranged in the shell to rotate horizontally, and one end of the connecting shaft passes through the outer wall of the shell; The output shafts of the two motors are respectively connected to the two connecting shafts to drive the connected connecting shafts to rotate; The two cams are respectively fixed on one end of the two connecting shafts located inside the housing and are respectively adapted to corresponding pulleys.

3. A high-temperature slag vibration filtering device for electroslag as claimed in claim 2, characterized in that: Two limit collars are horizontally arranged in the shell, and the two vertical rods are respectively sleeved on the two limit collars.

4. A high-temperature slag vibration filtering device for electroslag according to any one of claims 1 to 3, characterized in that: Among the four lower springs, the heights of the two lower springs located on the same side as the discharge port are lower than the heights of the two lower springs on the other side, and the two lower springs on the other side are of the same height.

5. A high-temperature slag vibration filtering device for electroslag according to any one of claims 1 to 3, characterized in that: The bottom of the shell is an inclined surface, and a sliding door is arranged on the lower end of the bottom of the shell.

Images