Continuous casting billet burr screening and collecting hopper

Abstract

The utility model discloses a continuous casting billet burr screening and collecting hopper which comprises an upper box body and a lower box body, a partition plate is installed between the upper box body and the lower box body, a plurality of sieve-shaped holes are evenly formed in the partition plate, movable lifting hook mechanisms are arranged at the two ends of the top of the upper box body, and an opening and closing mechanism is arranged at the bottom of the lower box body. And the movable lifting hook mechanism comprises two groups of box body lifting lugs, a group of movable lifting hooks and a connecting rod. The beneficial effects of the utility model are that through the arrangement of the upper box body, the lower box body and the partition plate between the upper box body and the lower box body, collected impurities such as burrs and oxide scales can be screened; by using the movable lifting hook mechanism, on one hand, the stability of the box body in the lifting process is improved, and on the other hand, personnel do not need to carry out dragging cooperation when burrs in the upper box body are dumped; the opening and closing mechanism is used, the lower box body bottom cover can be directly opened and closed, oxide scale impurities in the lower box body are cleaned, and liquid splashing and collision damage caused by falling of objects during close-distance operation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting billet burr recovery technology, specifically a continuous casting billet burr screening and collection hopper. Background Technology

[0002] During normal continuous casting production in steel plants, the continuously cast billets need to be flame-cut into sections according to the required dimensions for rolling. Therefore, all billets after flame cutting have flame-cutting defects on both the top and bottom ends, commonly known as burrs. These burrs are unacceptable during rolling because they can easily cause foreign objects to be pressed in or form scale. Steelmakers must clean these burrs from the billets.

[0003] After the burrs on the continuously cast billet are cleaned by the steelmaking-specific burr cleaning equipment, all the removed burrs eventually fall off and fall into the collection area below the roller conveyor. Finally, they are flushed into a collection frame by the continuous casting circulating water system and collected. After the continuous casting equipment is shut down, they are lifted out by an overhead crane and dumped.

[0004] Because the burrs collected by the circulating water contain a variety of items, including cutting head burrs, iron oxide scale, washed-out oil, dirt, and other debris, it is difficult to distinguish between burr scrap steel and slag during the later processing of the burrs. Subsequent processing is required, which increases the efficiency of secondary utilization. At the same time, when cleaning the burr collection tools, personnel need to operate at close range, and are very likely to get their clothes wet by the water remaining in the tools or be injured by the splashing debris. Utility Model Content

[0005] To address the above deficiencies, this utility model provides a burr screening and collection hopper for continuously cast steel billets, thereby solving the problem of burr recovery from continuously cast billets.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A burr screening and collection hopper for continuously cast steel billets includes an upper box and a lower box. A partition is installed between the upper box and the lower box. The partition has a number of sieve-like holes evenly opened. Movable hook mechanisms are provided at both ends of the top of the upper box, and an opening and closing mechanism is provided at the bottom of the lower box.

[0008] The movable hook mechanism includes two sets of box-shaped lifting lugs, a set of movable hooks, and a connecting rod. The two sets of box-shaped lifting lugs are installed at both ends of the top of the upper box, and the set of movable hooks is suspended on the two sets of box-shaped lifting lugs. The connecting rod is installed on the upper end of the set of movable hooks.

[0009] Furthermore, the opening and closing mechanism includes a bottom cover, a fixed slide rail, a transverse gear rod, a rotating shaft, a rotating gear, and a locking base. The bottom cover is movably hinged to the bottom of the lower housing. The fixed slide rail is installed on the bottom left side of the lower housing. The transverse gear rod is movably inserted into the fixed slide rail. The rotating shaft is movably installed on the bottom left side of the lower housing. The rotating gear is installed on the rotating shaft and meshes with the transverse gear rod. The locking base is installed at the bottom of the rotating shaft and fits against the bottom of the bottom cover.

[0010] Furthermore, several bearing balls are movably installed inside the fixed slide rail, and the rear end of the transverse gear rod is slidably installed on several bearing balls.

[0011] Furthermore, a set of chain links is installed at both ends of the transverse gear rod.

[0012] Furthermore, each of the movable hooks has a set of hook grooves at its bottom that correspond to the lifting lugs of the box body.

[0013] Furthermore, the top hook groove is a circular semi-closed shape, and the bottom hook groove is a rectangular closed shape.

[0014] Furthermore, a lifting ring is installed at the upper end of the connecting rod.

[0015] Furthermore, the lower tank has several water outlet holes evenly distributed on its outer surface.

[0016] This utility model provides a burr screening and collection hopper for continuously cast steel billets, which has the following advantages: by setting up an upper box, a lower box, and a partition between them, the collected burrs, iron oxide scale, and other impurities can be effectively screened. During subsequent cleaning, the burrs can be directly used for secondary steelmaking, avoiding the cumbersome secondary screening process. The use of a movable hook mechanism increases the stability of the box during hoisting, and when emptying the burrs from the upper box, no personnel are needed to drag them; the crane can operate it independently. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a burr screening and collection hopper for continuously cast steel billets according to the present invention.

[0018] Figure 2 This is a schematic diagram of the movable hook of this utility model in the detached state.

[0019] Figure 3 This is a left-side view of the hopper of this utility model.

[0020] Figure 4 This is a top view of the partition described in this utility model.

[0021] Figure 5 This is a schematic diagram of the opening and closing mechanism of this utility model.

[0022] Figure 6 This is a top view of the opening and closing mechanism of this utility model.

[0023] Figure 7 This is a schematic diagram of the bottom cover of this utility model when opened.

[0024] In the diagram: 1. Upper housing; 2. Lower housing; 3. Partition; 4. Sieve-like holes; 5. Lifting lugs; 6. Movable hook; 7. Connecting rod; 8. Bottom cover; 9. Fixed slide rail; 10. Horizontal gear rod; 11. Rotating shaft; 12. Rotating gear; 13. Locking base; 14. Bearing ball; 15. Chain link; 16. Hook groove; 17. Lifting ring; 18. Water outlet. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] Please see Figures 1 to 4 This application provides a continuous casting billet burr screening and collection hopper, including an upper box 1 and a lower box 2. A partition 3 is installed between the upper box 1 and the lower box 2. The partition 3 has a plurality of sieve-like holes 4 evenly opened. The upper box 1 is provided with movable hook mechanisms at both ends of the top, and the lower box 2 is provided with an opening and closing mechanism at the bottom. The movable hook mechanism includes two sets of box lifting lugs 5, a set of movable hooks 6, and a connecting rod 7. The two sets of box lifting lugs 5 are installed at both ends of the top of the upper box 1, the set of movable hooks 6 is suspended on the two sets of box lifting lugs 5, and the connecting rod 7 is installed on the upper end of the set of movable hooks 6.

[0027] In this embodiment, when collecting burrs from steel billets, the movable hook 6 is in a detached state. Burrs and impurities such as iron oxide scale are flushed into the hopper by circulating water. The burrs remain in the upper box 1 through the bottom partition 3. The iron oxide scale, being small in size, is flushed into the lower box 2 through the sieve-like holes 4. When it is necessary to clean the burrs in the upper box 1, the movable hook 6 is fully hooked onto the two sets of box lifting lugs 5, and the hopper is lifted out by an overhead crane. When lifting the entire hopper, the movable hook 6 stabilizes the box by hooking onto the two upper and lower lifting lugs 5 at both ends. When lowering the hopper, the movable hook 6 is disengaged from the top set of lifting lugs 5 at both ends and is moved to one side of the box to facilitate the tilting function of the hopper, allowing the burrs in the upper box 1 to be tilted out.

[0028] Please see Figures 5 to 7The bottom cover 8 is hinged to the bottom of the lower housing 2. The fixed slide rail 9 is installed on the bottom left side of the lower housing 2. The transverse gear rod 10 is movably inserted into the fixed slide rail 9. The rotating shaft 11 is movably installed on the bottom left side of the lower housing 2 through the fastening bearing. The rotating gear 12 is installed on the rotating shaft 11 and meshes with the transverse gear rod 10. The locking bottom support 13 is installed on the bottom of the rotating shaft 11 and fits against the bottom of the bottom cover 8.

[0029] The bottom cover 8 is initially closed. When the hopper is hoisted above the transport vehicle, the staff can stand at a distance and use tools such as iron hooks to hook the horizontal gear rod 10 and move it. By rotating the gear 12, the shaft 11 is rotated, and the locking bottom support 13 is finally turned 180 degrees. The bottom cover 8 is then opened to clean up the iron oxide scale and other debris in the lower box 2, preventing liquid splashing and injury from falling objects during close-range operation.

[0030] In some embodiments, a plurality of bearing balls 14 are movably installed in the fixed slide rail 9 to facilitate the movement of the transverse gear rod 10.

[0031] In some embodiments, a set of chain links 15 are installed at both ends of the transverse gear rod 10, which allows workers to stand at a distance and use tools such as iron hooks to hook the chain links 15 and drive the transverse gear rod 10 to move.

[0032] In some embodiments, a set of movable hooks 6 have a set of hook grooves 16 at the bottom corresponding to the lifting lugs 5 of the box body. The top hook groove 16 is circular and semi-closed, and the bottom hook groove 16 is rectangular and closed, so that a set of movable hooks 6 can hook onto two sets of lifting lugs 5 of the box body, or detach from the top set of lifting lugs 5 of the box body. When a set of movable hooks 6 needs to detach from the top set of lifting lugs 5, the set of movable hooks 6 is first moved downward, and then the set of movable hooks 6 is deflected.

[0033] In some embodiments, a lifting ring 17 is installed on the upper end of the connecting rod 7 to facilitate the hoisting of the overhead crane.

[0034] In some embodiments, a plurality of water outlet holes 18 are evenly opened on the outer surface of the lower tank 2, and the water outlet holes 18 are used to discharge the water that enters the lower tank 2 for flushing.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A burr screening and collection hopper for continuously cast steel billets, comprising an upper box (1) and a lower box (2), characterized in that, A partition (3) is installed between the upper box (1) and the lower box (2). Several sieve-like holes (4) are evenly opened on the partition (3). The upper box (1) is provided with movable hook mechanisms at both ends of the top, and the lower box (2) is provided with opening and closing mechanisms at the bottom. The movable hook mechanism includes two sets of box-shaped lifting lugs (5), a set of movable hooks (6) and a connecting rod (7). The two sets of box-shaped lifting lugs (5) are installed at both ends of the top of the upper box (1), and the set of movable hooks (6) is suspended on the two sets of box-shaped lifting lugs (5). The connecting rod (7) is installed on the upper end of the set of movable hooks (6).

2. The burr screening and collection hopper for continuously cast steel billets according to claim 1, characterized in that, The opening and closing mechanism includes a bottom cover (8), a fixed slide rail (9), a transverse gear rod (10), a rotating shaft (11), a rotating gear (12), and a locking base (13). The bottom cover (8) is movably hinged to the bottom of the lower housing (2). The fixed slide rail (9) is installed on the bottom left side of the lower housing (2). The transverse gear rod (10) is movably inserted into the fixed slide rail (9). The rotating shaft (11) is movably installed on the bottom left side of the lower housing (2). The rotating gear (12) is installed on the rotating shaft (11) and meshes with the transverse gear rod (10). The locking base (13) is installed at the bottom of the rotating shaft (11) and fits against the bottom of the bottom cover (8).

3. The burr screening and collection hopper for continuously cast steel billets according to claim 2, characterized in that, Several bearing balls (14) are movably installed inside the fixed slide rail (9), and the rear end of the transverse gear rod (10) is slidably installed on several bearing balls (14).

4. The burr screening and collection hopper for continuously cast steel billets according to claim 2, characterized in that, A set of chain links (15) are installed at both ends of the transverse gear rod (10).

5. The burr screening and collection hopper for continuously cast steel billets according to claim 1, characterized in that, A set of movable hooks (6) have a set of hook grooves (16) at the bottom that correspond to the lifting lugs (5) of the box body.

6. The burr screening and collection hopper for continuously cast steel billets according to claim 5, characterized in that, The top hook groove (16) is circular and semi-closed, while the bottom hook groove (16) is rectangular and closed.

7. The burr screening and collection hopper for continuously cast steel billets according to claim 1, characterized in that, A lifting ring (17) is installed at the upper end of the connecting rod (7).

8. The burr screening and collection hopper for continuously cast steel billets according to claim 1, characterized in that, The lower box (2) has several water outlet holes (18) evenly opened on its outer surface.

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