Screening device for tundish raw material production

Abstract

The utility model relates to the technical field of tundishes, and provides a screening device for tundish raw material production, which comprises a main screening barrel, the lower end of the main screening barrel is fixedly communicated with an auxiliary screening barrel, the inner wall of the auxiliary screening barrel is provided with a groove, and screening components are arranged in the main screening barrel and the auxiliary screening barrel. As tundish raw materials continuously flow downwards through the filtering holes, the filtering holes are prone to being blocked by the tundish raw materials, the normal screening effect of the filtering holes is affected, at the moment, the scraping plate can scrape away the tundish raw materials at the upper end of the disc so as to reduce pressure borne by the filtering holes, and meanwhile the telescopic rod can be controlled to stretch out and draw back to push the protruding block to slide along the groove; when the filter hole is blocked by the tundish raw material, the ejector rod in the base plate is aligned with the filter hole and slides upwards, the upper end of the ejector rod is arranged above the disc, and the ejector rod can completely eject the tundish raw material in the filter hole, so that the filter hole is prevented from being blocked by the tundish raw material, and the problem that the filter hole is not conveniently prevented from being blocked by the tundish raw material is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tundishes, and in particular to a screening device for tundish raw material production. Background Art

[0002] The tundish is a refractory container used in mini-process steelmaking. It receives molten steel from the ladle and then distributes it to the various molds through the tundish nozzle. As an important basic raw material, steel plays a vital role in the economic development of countries around the world.

[0003] The patent specification with announcement number CN212856506U discloses a tundish dry material screening device, comprising a box body, a feeding port, a first discharging port and a second discharging port are provided on the box body, an electromagnetic control valve is provided at the feeding port, a blanking control mechanism is provided in the box body, and the blanking control mechanism comprises a hanger, a receiving hopper, a first hydraulic push rod, a support plate and an electric support rod, a hollow ball is provided on the top of the electric support rod, a filter is provided under the support plate, a weight sensor is fixedly provided at the bottom of the receiving hopper, a guide plate is provided under the filter, a second hydraulic push rod is provided above the filter, and a cleaning plate is provided on the hydraulic push rod. When the blanking amount reaches a preset value of the weight sensor, the electromagnetic control valve is closed, the first hydraulic push rod is opened, and the first hydraulic push rod drives the hanger to move back and forth above the filter. At the same time, the electric support rod contracts and the receiving hopper rotates downward, so that the blanking material is evenly sprinkled onto the filter for screening, effectively preventing the filter from being blocked due to accumulation of raw materials, thereby greatly improving the screening efficiency.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: during the use of the above device, since the ladle raw materials contain a large amount of impurities, the impurities need to be screened out. However, when the existing ladle raw material screening device screens the raw material particles, the raw materials are easily accumulated on the screen, that is, the ladle raw materials cannot be filtered from the screen in time, resulting in screening blockage, thereby affecting the screening effect. Therefore, further improvement is needed. Utility Model Content

[0005] The utility model provides a screening device for tundish raw material production, which solves the problem in the related art that it is difficult to prevent the filter holes from being blocked by the tundish raw material.

[0006] The technical solution of the utility model is as follows:

[0007] The sieve is fixedly mounted on the support frame of the sieve, and the sieve has a channel slot for sliding the sieve slots thereinto. The sieve has two guide rails which are connected to the support frame of the sieve, and a guide rail is located adjacent to the support frame of the sieve. The sieve has two guide rails which are connected to the support frame of the sieve.

[0008] Preferably, the fixing component comprises a cross-shaped connecting rod fixedly connected to the inner wall of the main screening barrel, and a ring is fixedly connected to the central end of the cross-shaped connecting rod.

[0009] Preferably, the power adjustment component includes a rotating shaft fixedly connected to the upper end of the center position of the disc, the upper end of the rotating shaft is fixedly connected to a baffle, the outer surface of the rotating shaft is fixedly connected to a first auxiliary ring and a second auxiliary ring, the outer surface of the first auxiliary ring is fixedly connected to a scraper, and the outer surface of the second auxiliary ring is fixedly connected to a crushing blade.

[0010] Preferably, the lower end of the rotating shaft is fixedly connected to the output end of the micro motor inside the disc, and the rotating shaft passes through the interior of the ring.

[0011] Preferably, the baffle is located at the upper end of the circular ring, the first auxiliary ring and the scraper are both attached to the upper end of the disc, and the first auxiliary ring is located below the second auxiliary ring.

[0012] Preferably, the ejection component includes a chassis slidably connected to the center position of the auxiliary screening barrel, and the upper end of the chassis is evenly fixedly connected with an ejection rod, and the ejection rod corresponds to the filter hole.

[0013] Preferably, an extension block is fixedly connected to the outer surface of the chassis, one end of the extension block is fixedly connected to a convex block, and the lower end of the convex block is fixedly connected to a telescopic rod.

[0014] Preferably, the protrusion is slidably connected to the groove, and the lower end of the telescopic rod is fixedly connected to the inner wall of the groove.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] 1. The utility model pours the tundish raw materials into the interior of the main screening barrel, at which time the tundish raw materials will accumulate at the upper end of the disc, and then the tundish raw materials that meet the specifications will directly flow through the filter holes into the interior of the auxiliary screening barrel and then flow to the outside, while the tundish raw materials that do not meet the specifications will accumulate at the upper end of the disc. At this time, the micro motor in the disc can be controlled to start and drive the rotating shaft to rotate inside the ring. At this time, the scraper will scrape off the tundish raw materials on the upper end of the disc, and the oversized tundish raw materials will be crushed and reduced in size as the crushing blades rotate, thereby causing the oversized tundish raw materials to be reduced to tundish raw materials that meet the specifications, which can then flow through the filter holes into the interior of the auxiliary screening barrel.

[0017] 2. According to the utility model, as the tundish raw material continuously flows down through the filter holes, the filter holes are easily clogged by the tundish raw material, affecting the normal screening effect of the filter holes. At this time, the scraper can scrape the tundish raw material on the upper end of the disc to reduce the pressure on the filter holes. At the same time, the telescopic rod can be controlled to extend and retract to push the protrusion to slide along the groove, so that the ejector rod in the chassis is aligned with the filter hole and slides upward, so that the upper end of the ejector rod is placed above the disc. At this time, the ejector rod can completely eject the tundish raw material inside the filter hole, thereby preventing the filter hole from being clogged by the tundish raw material, thereby solving the problem of inconvenience in preventing the filter hole from being clogged by the tundish raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the fixed component, power adjustment component and disc structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the disc structure of the utility model;

[0022] Figure 4 This is a structural diagram of the fixing component and the first auxiliary ring of the utility model;

[0023] Figure 5 This is a schematic diagram of the auxiliary screening barrel structure of the utility model;

[0024] Figure 6 This is a schematic structural diagram of the ejection component of the present utility model.

[0025] In the figure: 1. Main screening barrel; 2. Auxiliary screening barrel; 21. Groove; 3. Screening assembly; 31. Fixing component; 311. Cross-shaped connecting rod; 3111. Ring; 32. Power adjustment component; 321. Rotating shaft; 3211. Baffle; 3212. First auxiliary ring; 32121. Scraper; 3213. Second auxiliary ring; 32131. Crushing leaves; 33. Disc; 331. Filter hole; 34. Ejector component; 341. Chassis; 3411. Ejector rod; 3412. Extension block; 34121. Bump; 341211. Telescopic rod. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figure 1 and Figure 2 As shown, this embodiment proposes a screening device for tundish raw material production, including a main screening barrel 1, the lower end of the main screening barrel 1 is fixedly connected to the auxiliary screening barrel 2, the main screening barrel 1 and the auxiliary screening barrel 2 are provided with a screening assembly 3, the screening assembly 3 includes a fixed component 31 fixedly connected to the center position of the main screening barrel 1, the center position of the main screening barrel 1 is also fixedly connected to a disc 33, the center position of the disc 33 is provided with a micro motor, the output end of the micro motor faces the fixed component 31, and the upper end of the disc 33 is uniformly penetrated. A filter hole 331 for filtering and screening the tundish raw material is provided. A power adjustment component 32 is provided at the upper end of the disc 33 for stirring and crushing the tundish raw material and preventing the filter hole 331 in the disc 33 from being blocked. The fixed component 31 is located above the power adjustment component 32. The upper end of the power adjustment component 32 passes through the interior of the fixed component 31. A ejection component 34 is slidably connected to the inner center position of the auxiliary screening barrel 2 for ejecting blocked filter holes 331 in the disc 33 from the filter holes 331.

[0028] like Figure 3As shown, the power adjustment component 32 includes a rotating shaft 321 fixedly connected to the upper end of the center position of the disk 33, the upper end of the rotating shaft 321 is fixedly connected to the baffle 3211, the outer surface of the rotating shaft 321 is fixedly connected to the first auxiliary ring 3212 and the second auxiliary ring 3213, the outer surface of the first auxiliary ring 3212 is fixedly connected to the scraper 32121, the lower end of the rotating shaft 321 is fixedly connected to the output end of the micro motor inside the disk 33, the rotating shaft 321 passes through the interior of the ring 3111, and the baffle 3211 is located at the upper end of the ring 3111. The first auxiliary ring 3212 and the scraper 32121 are both attached to the upper end of the disc 33. The first auxiliary ring 3212 is located below the second auxiliary ring 3213. The baffle 3211 is used to block the ring 3111, that is, to prevent the connection between the ring 3111 and the rotating shaft 321 from being blocked by the ladle material and affecting the normal rotation of the rotating shaft 321 in the ring 3111. The scraper 32121 is used to push the ladle material accumulated on the disc 33 so that it will not accumulate in one place, that is, to prevent the ladle material from clogging the filter hole 331.

[0029] like Figure 4 As shown, the fixing component 31 includes a cross-shaped connecting rod 311 fixedly connected to the inner wall of the main screening barrel 1, and the center end of the cross-shaped connecting rod 311 is fixedly connected to a circular ring 3111. The outer surface of the second auxiliary ring 3213 is fixedly connected to a crushing leaf 32131. The existence of the cross-shaped connecting rod 311 is used to fix the circular ring 3111 at the center position inside the main screening barrel 1. The main screening barrel 1 is used to limit the upper end of the rotating shaft 321, that is, to prevent the upper end position of the rotating shaft 321 from shaking and deviating due to the impact of the tundish material when rotating. The crushing leaf 32131 is used to crush and reduce the tundish material that does not meet the specifications and cannot pass through the filter hole 331 normally.

[0030] like Figure 5 As shown, a groove 21 is provided on the inner wall of the auxiliary screening barrel 2 , and the groove 21 is used to limit the protrusion 34121 , that is, to prevent the bottom plate 341 from shifting in position inside the auxiliary screening barrel 2 .

[0031] like Figure 6As shown, the ejection component 34 includes a chassis 341 slidably connected to the center position of the auxiliary screening barrel 2, and the upper end of the chassis 341 is evenly fixedly connected with an ejection rod 3411, and the ejection rod 3411 corresponds to the filter hole 331. An extension block 3412 is fixedly connected to the outer surface of the chassis 341, and one end of the extension block 3412 is fixedly connected to a protrusion 34121, and the lower end of the protrusion 34121 is fixedly connected to a telescopic rod 341211. The protrusion 34121 is slidably connected to the groove 21, and the lower end of the telescopic rod 341211 is fixedly connected to the inner wall of the groove 21. The telescopic rod 341211 is used to push the protrusion 34121 to slide along the groove 21. The ejection rod 3411 corresponds to the filter hole 331 one by one, so that the ejection rod 3411 can eject the ladle raw material accumulated in the filter hole 331 to the top of the disc 33.

[0032] The working principle and usage instructions of the present invention are as follows: when it is necessary to screen the tundish raw materials, the staff first needs to take out the device, and then the staff needs to pour the tundish raw materials into the interior of the main screening barrel 1. At this time, the tundish raw materials will accumulate at the upper end of the disc 33, and then the tundish raw materials that meet the specifications will directly flow through the filter holes 331 to the interior of the auxiliary screening barrel 2 and then flow to the outside, while the tundish raw materials that do not meet the specifications will accumulate at the upper end of the disc 33. At this time, the micro motor in the disc 33 can be controlled to start and drive the rotating shaft 321 to rotate inside the ring 3111. At this time, the scraper 32121 will scrape the tundish raw materials on the upper end of the disc 33, and the oversized tundish raw materials will be crushed and reduced in size as the crushing leaves 32131 rotate, thereby causing the oversized tundish raw materials to be crushed and reduced in size. The material becomes smaller to form a tundish raw material that meets the specifications, which can flow into the interior of the auxiliary screening barrel 2 through the filter hole 331. As the tundish raw material continues to flow down through the filter hole 331, the filter hole 331 is easily blocked by the tundish raw material, affecting the normal screening effect of the filter hole 331. At this time, the scraper 32121 can scrape the tundish raw material on the upper end of the disc 33 to reduce the pressure on the filter hole 331. At the same time, the telescopic rod 34121 can be controlled to telescope and push the protrusion 34121 to slide along the groove 21, causing the ejector rod 3411 in the chassis 341 to slide upwardly aligned with the filter hole 331, causing the upper end of the ejector rod 3411 to be placed above the disc 33. At this time, the ejector rod 3411 can completely eject the tundish raw material inside the filter hole 331, thereby preventing the filter hole 331 from being blocked by the tundish raw material.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screening device for tundish raw material production, comprising a main screening barrel (1), the lower end of the main screening barrel (1) is fixedly connected to a secondary screening barrel (2), and a groove (21) is provided on the inner wall of the secondary screening barrel (2), characterized in that: A screening assembly (3) is provided inside the main screening barrel (1) and the auxiliary screening barrel (2). The screening assembly (3) comprises a fixing component (31) fixedly connected to the center position inside the main screening barrel (1). A disc (33) is also fixedly connected to the center position inside the main screening barrel (1). A micro motor is provided at the center position inside the disc (33). The output end of the micro motor faces the fixing component (31). Filter holes (331) for filtering the tundish raw material are evenly penetrated through the upper end of the disc (33). The upper end of the disc (33) is provided with a power regulating component (32) for stirring and crushing the tundish raw material and for preventing the filter holes (331) in the disc (33) from being blocked. The fixed component (31) is located above the power regulating component (32). The upper end of the power regulating component (32) passes through the interior of the fixed component (31). The central position of the interior of the auxiliary screening barrel (2) is slidably connected with a ejecting component (34) for ejecting the blocked filter holes (331) in the disc (33) from the filter holes (331).

2. The screening device for tundish raw material production according to claim 1, characterized in that: The fixing component (31) comprises a cross-shaped connecting rod (311) fixedly connected to the inner wall of the main screening barrel (1), and a circular ring (3111) is fixedly connected to the central end of the cross-shaped connecting rod (311).

3. The screening device for tundish raw material production according to claim 1, characterized in that: The power adjustment component (32) comprises a rotating shaft (321) fixedly connected to the upper end of the center position of the disc (33); a baffle (3211) is fixedly connected to the upper end of the rotating shaft (321); a first auxiliary ring (3212) and a second auxiliary ring (3213) are fixedly connected to the outer surface of the rotating shaft (321); a scraper (32121) is fixedly connected to the outer surface of the first auxiliary ring (3212); and a crushing blade (32131) is fixedly connected to the outer surface of the second auxiliary ring (3213).

4. The screening device for tundish raw material production according to claim 3, characterized in that: The lower end of the rotating shaft (321) is fixedly connected to the output end of the micro motor inside the disc (33), and the rotating shaft (321) passes through the interior of the ring (3111).

5. The screening device for tundish raw material production according to claim 4, characterized in that: The baffle (3211) is located at the upper end of the circular ring (3111), the first auxiliary ring (3212) and the scraper (32121) are both attached to the upper end of the disc (33), and the first auxiliary ring (3212) is located below the second auxiliary ring (3213).

6. The screening device for tundish raw material production according to claim 1, characterized in that: The ejection component (34) comprises a chassis (341) slidably connected to the center position inside the auxiliary screening barrel (2); the upper end of the chassis (341) is evenly fixedly connected with an ejection rod (3411), and the ejection rod (3411) corresponds to the filter hole (331).

7. The screening device for tundish raw material production according to claim 6, characterized in that: An extension block (3412) is fixedly connected to the outer surface of the chassis (341), one end of the extension block (3412) is fixedly connected to a protrusion (34121), and the lower end of the protrusion (34121) is fixedly connected to a telescopic rod (341211).

8. The screening device for tundish raw material production according to claim 7, characterized in that: The protrusion (34121) is slidably connected to the groove (21), and the lower end of the telescopic rod (341211) is fixedly connected to the inner wall of the groove (21).

Images