A slag grabbing bucket protection cover and a method for buffering the impact force of water flow of a cyclone well

Abstract

The present application relates to a kind of slag grab protective cover and the buffer cyclone well water flow impact force of slag grab method, belong to metallurgical industry metal rolling equipment technical field.The technical scheme is: containing protective cover cover body (1), track (3), flange (4), support beam (5) and throttle hole (7), the protective cover cover body (1) is the circular ring structure matched with slag grab (11), the protective cover cover body (1) is equipped with several throttle holes (7), the inner wall circumferential direction of protective cover cover body (1) is equipped with track (3), the one end of two support beams (5) is respectively slidably connected on track (3), the other end of two support beams (5) is respectively equipped with the connection flange (4) matched with slag grab (11).The beneficial effects of the present application are: can effectively reduce the impact force of cyclone well water flow, slow down or eliminate the rotation of slag grab, avoid impact well wall, improve the efficiency of slag grab.

Description

Technical Field

[0001] This invention relates to a slag grabbing bucket protective cover and a slag grabbing method for buffering the impact of vortex well water flow, belonging to the technical field of metal rolling equipment in the metallurgical industry. Background Technology

[0002] A vortex sedimentation tank is a type of eddy current sedimentation tank primarily used in steel production plants to remove iron oxide scale from the cooling water of the production line, improve water quality, and ensure the recycling of cooling water. The iron oxide scale in the cooling water settles to the bottom of the vortex under the action of the vortex, and is then removed by an overhead crane and a slag grabber, transporting the iron oxide scale slag out of the vortex for reuse. However, due to the rapid water flow within the vortex, and the tangential spray of the water, a significant rotational impact force is generated along the vortex wall. The slag grabber, upon entering the water, causes significant rotation and impacts the well wall, resulting in substantial damage to the equipment and the vortex. To address these issues, a method and auxiliary equipment to mitigate or eliminate the water flow impact are needed. Summary of the Invention

[0003] The purpose of this invention is to provide a slag grabbing bucket protective cover and a slag grabbing method that buffers the impact force of vortex well water flow, which can effectively reduce the impact force of vortex well water flow, slow down the rotation of the slag grabbing bucket, avoid collision with the well wall, and solve the problems existing in the background art.

[0004] The technical solution of this invention is:

[0005] A protective cover for a slag grabbing bucket includes a protective cover body, a track, a flange, support beams, and throttling holes. The protective cover body is a circular structure that cooperates with the slag grabbing bucket. The protective cover body is provided with a plurality of throttling holes. A track is provided in the circumferential direction of the inner wall of the protective cover body. One end of each of the two support beams is slidably connected to the track, and the other end of each of the two support beams is provided with a connecting flange that cooperates with the slag grabbing bucket.

[0006] The protective cover has a dovetail groove on the track along the circumferential direction of the inner wall of the cover, and one end of the two support beams is provided with a dovetail slider that cooperates with the dovetail groove.

[0007] The protective cover has several throttling holes evenly arranged on it.

[0008] The protective cover has two reinforcing ribs (two and three) circumferentially arranged at both ends, and several reinforcing ribs (one) axially arranged on the protective cover.

[0009] This slag grab bucket protective cover is designed to address the characteristics of swirling water flow in vortex wells, and mainly consists of the following three aspects:

[0010] 1) The surface of the water flow impact force is changed from the plane of the slag grabber bucket to the arc surface of the protective cover. This mainly utilizes the phenomenon of fluid flow around the slag grabber bucket to change the direction of the water flow impact force, avoid the water flow from hitting the slag grabber bucket head-on, improve the stress state, and reduce the effective area of ​​the water flow impact, thereby reducing the impact force.

[0011] 2) Allow the water flow in the vortex well to pass through the throttling hole on the protective cover to reduce the water flow pressure and velocity, thereby weakening or eliminating the water flow impacting the grab bucket plane, thus reducing the impact force of the water flow;

[0012] 3) The circular protective cover installed on the outside of the slag grab bucket will inevitably rotate under the tangential impact force of the vortex well water flow. The rotation can not only consume the impact force of the water flow, but also make the turbulence in the vortex well more complex, slow down the flow velocity of the water flow, and thus further reduce the impact of the vortex well water flow on the slag grab bucket.

[0013] A method for slag grabbing that buffers the impact of water flow in a vortex well involves installing a protective cover on the slag grabbing bucket before it enters the vortex well to grab slag. This protective cover rotates around the slag grabbing bucket under the impact of the water flow in the vortex well. Several evenly arranged throttling holes are opened on the protective cover. When the slag grabbing bucket enters the vortex well to grab slag, the throttling holes can reduce the water pressure and flow velocity in the vortex well, thereby weakening the impact force on the slag grabbing bucket.

[0014] The protective cover has a circular structure and is installed on the slag grabbing bucket by two support beams. The inner wall of the protective cover is provided with a track in the circumferential direction. One end of each of the two support beams is slidably connected to the track, and the other end of each support beam is connected to the slag grabbing bucket by a connecting flange.

[0015] The protective cover has a dovetail groove on the track along the circumferential direction of the inner wall, and one end of the two support beams is provided with a dovetail slider that cooperates with the dovetail groove.

[0016] The protective cover has two reinforcing ribs (two and three) circumferentially arranged at both ends, and several reinforcing ribs (one) axially arranged on the protective cover body.

[0017] The beneficial effects of this invention are: it can effectively reduce the impact force of the vortex well water flow, slow down or eliminate the rotation of the slag grabbing bucket, avoid impacting the well wall, and improve the slag grabbing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the protective device of the present invention;

[0019] Figure 2 This is a schematic diagram of the supporting beam structure;

[0020] Figure 3 This is a schematic diagram of the track cross-section;

[0021] Figure 4 This is a schematic diagram illustrating the usage state of the present invention;

[0022] In the diagram: 1. Protective cover body; 2. Reinforcing rib 1; 3. Track; 4. Flange; 5. Support beam; 6. Reinforcing rib 2; 7. Throttling hole; 8. Reinforcing rib 3; 9. Dovetail slider; 10. Dovetail groove; 11. Slag grabber. Detailed Implementation

[0023] The invention will be further described below with reference to the accompanying drawings and examples.

[0024] See attached document Figure 1-4 A protective cover for a slag grabbing bucket includes a protective cover body 1, a track 3, a flange 4, a support beam 5, and a throttling hole 7. The protective cover body 1 is a circular structure that cooperates with the slag grabbing bucket 11. The protective cover body 1 is provided with a plurality of throttling holes 7. The inner wall of the protective cover body 1 is provided with a track 3 in the circumferential direction. One end of the two support beams 5 is slidably connected to the track 3, and the other end of the two support beams 5 is provided with a connecting flange 4 that cooperates with the slag grabbing bucket 11.

[0025] In this embodiment, as shown in the appendix Figure 1-4 As shown, the reinforcing rib 2 is vertically welded to the inner side of the protective cover 1, and is evenly distributed to enhance the vertical strength of the protective cover 1.

[0026] The track 3 is welded to the middle part of the reinforcing rib 2 and is fully welded to all the reinforcing ribs 2. It is located inside the protective cover 1, is circular, and is connected end to end. A dovetail groove 10 is designed on the plane near the center.

[0027] The support beam 5 is a T-shaped beam, and the dovetail slider 9 is welded to one end of the support beam 5. The support beam 5 is installed in the dovetail groove 10 of the track 3 through the dovetail slider 9, and can slide in a circle along the dovetail groove 10. The support beams 5 are installed in pairs and are mirror-symmetrical about the center of the track 3.

[0028] Flange 4 is welded to the other end of support beam 5 on one side, and connected to the pin of grab bucket 11 by thread on the other side.

[0029] Reinforcing ribs 2 and 3 are welded to both ends of the protective cover 1 to increase the strength of the protective cover. The welding method is stylus welding to avoid thermal stress deformation of the protective cover 1 during welding.

[0030] The dovetail slider 9 on the support beam 5 is an arc-shaped dovetail slider 9, and its center coincides with the center of the track 3.

[0031] The dovetail groove 10 of the track is a circular groove, the center of which coincides with the center of the track 3.

[0032] The protective cover 1 is designed with numerous throttling holes 7, forming a thin-walled array of small holes, which can block the water flow and change the flow state. The diameter of the small holes and the array are selected according to the size of the water flow.

[0033] A method for slag grabbing that buffers the impact of water flow in a vortex well involves installing a protective cover on the slag grabbing bucket before it enters the vortex well to grab slag. This protective cover allows the bucket to rotate around the slag grabbing bucket under the impact of the water flow in the vortex well. Several evenly arranged throttling holes are opened on the protective cover. When the slag grabbing bucket enters the vortex well to grab slag, the throttling holes reduce the water pressure and velocity in the vortex well, thereby weakening the impact on the slag grabbing bucket.

Claims

1. A protective cover for a slag grabber, characterized in that: It includes a protective cover body (1), a track (3), a flange (4), a support beam (5), and a throttling hole (7). The protective cover body (1) is a circular structure that cooperates with the slag grabbing bucket (11). The protective cover body (1) is provided with several throttling holes (7). The inner wall of the protective cover body (1) is provided with a track (3) in the circumferential direction. One end of the two support beams (5) is slidably connected to the track (3), and the other end of the two support beams (5) is provided with a connecting flange (4) that cooperates with the slag grabbing bucket (11). The protective cover can rotate around the slag grabbing bucket (11) under the impact of the vortex well water flow.

2. The protective cover for a slag grabber according to claim 1, characterized in that: The protective cover (1) has a dovetail groove (10) on the track (3) in the circumferential direction of the inner wall of the cover (1), and one end of the two support beams (5) is provided with a dovetail slider (9) that cooperates with the dovetail groove (10).

3. The protective cover for a slag grabber according to claim 1, characterized in that: The protective cover (1) has several throttling holes (7) evenly arranged.

4. A protective cover for a slag grabber according to claim 1, characterized in that: The protective cover body (1) is provided with reinforcing ribs 2 (6) and 3 (8) in the circumferential direction at both ends, and a number of reinforcing ribs 1 (2) are provided in the axial direction of the protective cover body (1).

5. A method for removing slag by buffering the impact force of water flow in a vortex well, characterized in that: Before the slag grabbing bucket enters the vortex well to grab slag, a protective cover is first installed on the slag grabbing bucket so that the protective cover can rotate around the slag grabbing bucket under the impact of the water flow in the vortex well, and several evenly arranged throttling holes (7) are opened on the protective cover; when the slag grabbing bucket enters the vortex well to grab slag, the throttling holes (7) can reduce the water flow pressure and flow velocity in the vortex well, thereby weakening the impact force on the slag grabbing bucket.

6. The method for removing slag from a vortex well by buffering the impact force of water flow according to claim 5, characterized in that: The protective cover is a circular structure. The protective cover is installed on the slag grabbing bucket by two support beams (5). The inner wall of the protective cover is provided with a track (3) in the circumferential direction. One end of the two support beams (5) is slidably connected to the track (3), and the other end of the two support beams (5) is connected to the slag grabbing bucket by connecting flanges (4).

7. The method for removing slag from a vortex well according to claim 6, characterized in that: The protective cover has a dovetail groove (10) on the track (3) in the circumferential direction of the inner wall, and a dovetail slider (9) that cooperates with the dovetail groove (10) is provided at one end of the two support beams (5).

8. The method for removing slag from a vortex well by buffering the impact force of water flow according to claim 6, characterized in that: The protective cover has two reinforcing ribs (6) and three reinforcing ribs (8) circumferentially arranged at both ends, and several reinforcing ribs (2) are arranged axially on the cover body (1).

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