A filtering device for effectively collecting iron oxide scale in the swirl well of a continuous casting machine

Abstract

The utility model discloses a filtering device for effectively collecting iron oxide scale in a swirl well of a continuous casting machine, belonging to the technical field of swirl well filtering, comprising a swirl well and a water inlet pipe installed through the outside of the swirl well, a filter screen installed in an arc shape inside an iron cage, and the position where the head and tail of the filter screen are not connected faces the water inlet pipe, the iron cage moves into the interior of the swirl well, after the iron cage remains stable, the cylinder extends to drive a positioning piece to move out from the inside of a slot, the positioning piece contacts the inner wall of the swirl well, four groups of cylinders and positioning pieces are fixed inside the swirl well, the position of the iron cage is fixed, when turbid water with iron oxide scale passes through the water inlet pipe, the filter screen effectively delays and filters the iron oxide scale, and then grabs it out with a grab bucket, because the grab bucket operates in the middle of the filter screen, the floating of the iron oxide scale caused by stirring can still be blocked by the filter screen and will not flow into the pipeline, thereby reducing the work burden of the filtering components of the circulating water system and reducing the amount of sewage treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of vortex well filtering, in particular to a filtering device for effectively collecting oxidized iron scale in a vortex well of a continuous casting machine. Background Art

[0002] During the process of molten steel being formed by the continuous casting machine, the surface of the steel billet will be oxidized, and a large amount of iron oxide will be produced. At the same time, a considerable amount of mold powder residue (about 0.5kg / t steel for slab powder residue) is mixed into the iron oxide, and this mixture is called iron oxide slag. Since the powder residue in the iron oxide slag contains low melting point substances such as Na2O, K2O, CaF2, B2O3, etc., the iron oxide slag containing powder residue is used by some manufacturers as a sintering aid for sintered ore, or directly used to produce pellets. When metallurgical enterprises use continuous casting machines to cast continuous casting billets, they generally use cyclone wells to collect secondary cooling spray water, equipment cooling water, and slag flushing water, and then use grab buckets to fish out the iron oxide precipitated at the bottom of the cyclone well. The sewage in the cyclone well is treated by water treatment facilities, and then returned to the circulating water pool for recycling after cooling.

[0003] The existing cyclone well has poor sedimentation effect. When collecting secondary cooling spray water, equipment cooling water, and slag flushing water, the oxidized iron scale cannot be effectively precipitated due to the influence of water flow, resulting in frequent slag scooping by the grab bucket but a small amount of oxidized iron scale scooped out. Some of the oxidized iron scale is also carried into the circulating water system pipes and sewage treatment facilities by the water flow, which increases the burden on the filtering device and causes premature damage to the equipment. At the same time, the amount of water that seriously exceeds the water quality standard increases, which increases the burden of sewage treatment and causes waste of water resources.

[0004] Therefore, we propose a filtering device for effectively collecting the oxide scale in the swirl well of the continuous casting machine, so as to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a filtering device for effectively collecting iron oxide scale in the vortex well of a continuous casting machine. The device is used to work, thereby solving the problem of poor precipitation effect of iron oxide scale in the vortex well of the continuous casting machine.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a filtering device for effectively collecting scale oxide in a swirl well of a continuous casting machine, comprising a swirl well and a water inlet pipe installed through the outside of the swirl well, a filtering component is installed inside the swirl well, a crane is installed across the outside of the swirl well, a grab is connected to the bottom end of the crane in the crane, and the grab is located at the center of the filtering component;

[0007] The filter component comprises an iron cage and a filter screen installed inside the iron cage. The filter screen is installed inside the iron cage in an arc shape, and the unconnected part of the filter screen faces the water inlet pipe.

[0008] Preferably, a mounting ring is provided above the iron cage, a connecting block is installed at the inner bottom end of the mounting ring, a lifting ear is installed at the top of the iron cage and at a position corresponding to the connecting block, a lifting rope is installed at the bottom end of the connecting block, and one end of the lifting rope is connected to the lifting ear.

[0009] Preferably, a positioning ring is installed at the bottom end of the iron cage, a control block is installed inside the positioning ring and at the bottom end of the iron cage, a cylinder is installed inside the power supply, and a positioning piece is installed at the moving end of the cylinder.

[0010] Preferably, the cylinders are provided in four groups, the four groups of cylinders penetrate the outer side of the control block, the outer side of the positioning ring is provided with slots, and the slots are provided in four groups, and the four groups of slots are aligned with the four groups of cylinders.

[0011] Preferably, a power supply is installed at the middle end of the control block, and a waterproof frame is installed on the outside of the power supply.

[0012] Preferably, an opening is provided on the outer side of the control block, and a rubber ring is installed on the inner wall of the control block and around the opening.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] (1) The utility model proposes a filtering device for effectively collecting scale oxide in the vortex well of a continuous casting machine. The filtering component has a strong ability to collect scale oxide, and the grab bucket has high efficiency, which reduces the labor intensity of workers and improves work efficiency. It effectively reduces the frequency of dredging the pipeline and filtering device in the circulating water system, reduces equipment maintenance costs, effectively improves the continuous casting water quality, prevents the secondary cooling nozzle from being blocked by scale oxide, improves the surface quality and low-multiple quality of the continuous casting billet, reduces the amount of sewage treatment, saves motor energy consumption, and ensures the rational use of water resources.

[0015] (2) The utility model proposes a filtering device for effectively collecting scale oxide in the swirl well of a continuous casting machine. The iron cage is moved into the interior of the swirl well, and the mounting ring is installed at the top of the swirl well. After the iron cage remains stable, the cylinder extends to drive the positioning plate to move out from the inside of the slot, and the positioning plate contacts the inner wall of the swirl well. The four groups of cylinders and the positioning plate are fixed inside the swirl well to fix the position of the iron cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the filter component of the utility model;

[0018] Figure 3 This is a schematic diagram of the positioning ring flip structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the control block of the utility model.

[0020] In the figure: 1. vortex well; 2. water inlet pipe; 3. overhead crane; 4. grab bucket; 5. filter element; 51. mounting ring; 52. connecting block; 53. lifting rope; 54. iron cage; 55. lifting ear; 56. filter screen; 57. positioning ring; 58. control block; 581. power supply; 582. waterproof frame; 583. opening; 584. rubber ring; 585. cylinder; 586. positioning sheet; 59. slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Please refer to Figure 1 and Figure 2 A filtering device for effectively collecting scale oxide in a vortex well of a continuous casting machine comprises a vortex well 1 and a water inlet pipe 2 installed through the outside of the vortex well 1, a filtering component 5 is installed inside the vortex well 1, a crane 3 is installed across the outside of the vortex well 1, a grab 4 is connected to the bottom end of the crane in the crane 3, and the grab 4 is located at the center of the filtering component 5.

[0023] The filter component 5 includes an iron cage 54 and a filter screen 56 installed inside the iron cage 54. The filter screen 56 is installed inside the iron cage 54 in an arc shape, and the unconnected part of the filter screen 56 faces the water inlet pipe 2. The turbid water with oxidized iron scale is discharged into the iron cage 54 through the water inlet pipe 2. The filter screen 56 is set to filter the turbid water, and the grab bucket 4 is used to clamp the oxidized iron scale on the inner side of the filter screen 56.

[0024] A mounting ring 51 is provided above the iron cage 54, a connecting block 52 is installed at the inner bottom end of the mounting ring 51, a lifting ear 55 is installed at the top of the iron cage 54 and at a position corresponding to the connecting block 52, a lifting rope 53 is installed at the bottom end of the connecting block 52, and one end of the lifting rope 53 is connected to the lifting ear 55, and the gap between the mounting ring 51 and the iron cage 54 can facilitate the insertion of the water inlet pipe 2.

[0025] In this embodiment: a set of annular filtering components 5 is added in the middle of the vortex well 1 of the continuous casting machine, so that when the turbid water with oxidized iron scale flows through the water inlet pipe 2, the filter screen 56 effectively delays and filters the oxidized iron scale, so that the oxidized iron scale gathers in the center of the vortex well 1, and then is grabbed out by the grab bucket 4. Since the grab bucket 4 operates in the middle of the filter screen 56, the floating of the oxidized iron scale caused by stirring can still be blocked by the filter screen 56 and will not flow into the pipeline, thereby reducing the workload of the circulating water system filter component 5 and reducing the amount of sewage treatment.

[0026] Example 2: Please refer to Figure 2-4 A positioning ring 57 is installed at the bottom end of the iron cage 54, a control block 58 is installed inside the positioning ring 57 and at the bottom end of the iron cage 54, a cylinder 585 is installed inside the power supply 581, and a positioning piece 586 is installed at the moving end of the cylinder 585.

[0027] There are four groups of cylinders 585, and the four groups of cylinders 585 penetrate the outside of the control block 58. The outside of the positioning ring 57 is provided with slots 59, and there are four groups of slots 59. The four groups of slots 59 are aligned with the four groups of cylinders 585. The moving end of the cylinder 585 contacts the inner wall of the vortex well 1 to fix the position of the filter element 5.

[0028] A power source 581 is installed at the middle end of the control block 58 , and a waterproof frame 582 is installed on the outside of the power source 581 . The power source 581 is provided to provide power to the cylinder 585 .

[0029] An opening 583 is provided on the outer side of the control block 58 , and a rubber ring 584 is installed on the inner wall of the control block 58 and around the opening 583 . The rubber ring 584 is provided to seal between the opening 583 and the cylinder 585 .

[0030] In this embodiment: the iron cage 54 moves into the interior of the vortex well 1, and the mounting ring 51 is installed at the top of the vortex well 1. After the iron cage 54 remains stable, the cylinder 585 extends to drive the positioning piece 586 to move out from the interior of the slot 59, and the positioning piece 586 contacts the inner wall of the vortex well 1. Four groups of cylinders 585 and positioning pieces 586 are fixed inside the vortex well 1 to fix the position of the iron cage 54. When turbid water impacts the filter screen 56 and the iron cage 54, the stability of the iron cage 54 can be maintained. When the grab bucket 4 clamps the oxidized iron scale inside the iron cage 54, the set cylinder 585 can absorb the impact force of the grab bucket 4 descending to prevent the iron cage 54 from moving down too much and affecting the connection of the lifting rope 53 to the lifting ear 55.

[0031] Working principle: A set of annular filtering components 5 is added in the middle of the vortex well of the continuous casting machine. When the turbid water with oxidized iron scale flows through, the 3 / 4 annular filter screen 56 effectively delays and filters the oxidized iron scale, allowing the oxidized iron scale to gather in the center of the vortex well, and then is grabbed out by the grab 4. The equipment is easy to manufacture and install, with high reliability. At the same time, it greatly improves the oxidized iron scale collection capacity of the vortex well 1, effectively reduces the frequency of dredging the pipeline and filtering device in the circulating water system, reduces the equipment maintenance cost, reduces the amount of sewage treatment, saves electricity and water consumption, and improves the surface and low-multiple quality of the continuous casting billet by improving the water quality.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filtering device for effectively collecting scale oxide from a vortex well of a continuous casting machine, comprising a vortex well (1) and a water inlet pipe (2) installed through the outside of the vortex well (1), characterized in that: A filter element (5) is installed inside the vortex well (1), and a crane (3) is installed across the outside of the vortex well (1). A grab bucket (4) is connected to the bottom end of the crane in the crane (3), and the grab bucket (4) is located at the center of the filter element (5); The filter component (5) comprises an iron cage (54) and a filter screen (56) installed inside the iron cage (54); the filter screen (56) is installed inside the iron cage (54) in an arc shape, and the unconnected part of the filter screen (56) faces the water inlet pipe (2).

2. A filtering device for effectively collecting scale oxide in a swirl well of a continuous casting machine according to claim 1, characterized in that: A mounting ring (51) is provided above the iron cage (54), a connecting block (52) is installed at the inner bottom end of the mounting ring (51), a lifting ear (55) is installed at the top of the iron cage (54) and at a position corresponding to the connecting block (52), a lifting rope (53) is installed at the bottom end of the connecting block (52), and one end of the lifting rope (53) is connected to the lifting ear (55).

3. A filtering device for effectively collecting scale oxide in a swirl well of a continuous casting machine according to claim 2, characterized in that: A positioning ring (57) is installed at the bottom end of the iron cage (54), a control block (58) is installed inside the positioning ring (57) and at the bottom end of the iron cage (54), a cylinder (585) is installed inside the power supply (581), and a positioning piece (586) is installed at the moving end of the cylinder (585).

4. A filtering device for effectively collecting scale oxide in a swirl well of a continuous casting machine according to claim 3, characterized in that: The cylinders (585) are provided in four groups, and the four groups of cylinders (585) penetrate the outer side of the control block (58). The outer side of the positioning ring (57) is provided with slots (59), and the slots (59) are provided in four groups. The four groups of slots (59) are aligned with the four groups of cylinders (585).

5. A filtering device for effectively collecting scale oxide in a swirl well of a continuous casting machine according to claim 4, characterized in that: A power source (581) is installed at the inner middle end of the control block (58), and a waterproof frame (582) is installed at the outer side of the power source (581).

6. A filtering device for effectively collecting scale oxide in a swirl well of a continuous casting machine according to claim 5, characterized in that: An opening (583) is provided on the outer side of the control block (58), and a rubber ring (584) is installed on the inner wall of the control block (58) and around the opening (583).

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