Phosphorus removal device

Abstract

The invention provides a dephosphorization device, and relates to the technical field of steel smelting dephosphorization equipment. The dephosphorization device comprises a dephosphorization box, a mounting rod and a chain. The dephosphorization box is provided with an opening; the mounting rod is detachably arranged on the dephosphorization box; the number of the chains is multiple, and the multiple chains are detachably hung on the installation rod so as to shield the opening. The steel billets to be dephosphorized are conveyed into and out of the dephosphorization box through the opening, and after the steel billets to be dephosphorized enter the dephosphorization box, the mounting rod provided with the multiple chains in a hanging mode can be mounted at the opening of the dephosphorization box to shield the opening, so that fragments such as oxide scales are prevented from splashing out of the dephosphorization box in the cleaning process, and therefore operators are prevented from being hurt, and the working environment is prevented from being polluted. And after the chains are rusted, the chains can be replaced only by disassembling the mounting rods from the dephosphorization box, disassembling the multiple chains from the mounting rods and hanging multiple new chains again, so that the assembly efficiency is high, and the use cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of iron and steel smelting dephosphorization equipment, and in particular to a dephosphorization device. Background Art

[0002] In the current dephosphorization system, the box design is generally used. After the hot-rolled steel strip enters the box, the box door is immediately closed, and the steel billet is washed with high pressure to remove impurities and oxide layers on the surface. Otherwise, during the cleaning process, it is very easy to cause iron oxide scale and other debris to splash, which may not only injure the operator, but also pollute the working environment, thus posing a safety hazard.

[0003] In order to ensure operational safety, current box doors are usually driven by motors. However, frequent starting and stopping of the driving equipment will increase power consumption, leading to higher energy costs. In addition, frequent opening and closing of hydraulic doors will also increase the failure rate. Summary of the invention

[0004] The invention provides a dephosphorization device, which can avoid harming operators and polluting the working environment, is convenient to disassemble, has high assembly efficiency and low use cost.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a phosphorus removal device, comprising:

[0007] A phosphorus removal box, wherein the phosphorus removal box is provided with an opening;

[0008] A mounting rod, the mounting rod being detachably mounted on the dephosphorization box;

[0009] The chain is multiple in number and the multiple chains are detachably hung on the mounting rod to cover the opening.

[0010] In the above embodiment, the steel billets to be dephosphorized are transported in and out of the dephosphorization box through the opening. After the steel billets to be dephosphorized enter the dephosphorization box, a mounting rod with multiple chains can be installed at the opening of the dephosphorization box to cover the opening to prevent iron oxide and other debris from splashing out of the dephosphorization box during the cleaning process, thereby avoiding harm to the operator and pollution of the working environment. After the chain is rusted, it is only necessary to remove the mounting rod from the dephosphorization box, remove the multiple chains from the mounting rod, and re-hang multiple new chains to complete the chain replacement, with high assembly efficiency and low use cost.

[0011] In an optional embodiment, the mounting rod is provided with a plurality of limiting portions protruding along the length direction, and the chain is arranged between two adjacent limiting portions.

[0012] In an optional embodiment, a plurality of the limiting portions are staggeredly arranged on two sides of the mounting rod in opposite directions.

[0013] In an optional embodiment, there are multiple mounting rods, and the multiple mounting rods can be detachably disposed on the dephosphorization box.

[0014] In an optional embodiment, the dephosphorization device further comprises a first mounting member, a plurality of the mounting rods are arranged side by side on the first mounting member, and the first mounting member is detachably arranged on the dephosphorization box.

[0015] In an optional embodiment, the dephosphorization device further includes a second mounting member, wherein the second mounting member is disposed at the open top of the dephosphorization box, and the first mounting member is detachably disposed on the second mounting member.

[0016] In an optional embodiment, the second mounting member is provided with a mounting groove, the bottom wall of the mounting groove is provided with a mounting hole, and the top opening area of ​​the mounting groove is larger than the area of ​​the mounting hole, the shape of the first mounting member matches the shape of the mounting groove, and the first mounting member is detachably arranged in the mounting groove.

[0017] In an optional embodiment, the width of the mounting groove gradually decreases in a vertical downward direction.

[0018] In an optional embodiment, both ends of the mounting rod are hung on the first mounting member, and the first mounting member is further provided with a cover plate, and the cover plate is covered on both ends of the mounting rod through fasteners.

[0019] In an optional embodiment, the dephosphorization device further includes a conveying roller, the dephosphorization box is arranged on the conveying roller, and the conveying roller is used to convey the steel billet to be dephosphorized.

[0020] The beneficial effects of the dephosphorization device provided by the embodiment of the present invention include: the steel billets to be dephosphorized are transported in and out of the dephosphorization box through the opening. After the steel billets to be dephosphorized enter the dephosphorization box, a mounting rod with multiple chains can be installed at the opening of the dephosphorization box to cover the opening, so as to avoid iron oxide and other debris splashing out of the dephosphorization box during the cleaning process, thereby avoiding harm to the operator and pollution of the working environment; and after the chain is rusted, it is only necessary to remove the mounting rod from the dephosphorization box, remove the multiple chains from the mounting rod, and re-hang multiple new chains to complete the chain replacement, with high assembly efficiency and low use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the structure of a phosphorus removal device provided in an embodiment of the present invention;

[0023] Figure 2 An exploded view of a dephosphorization device provided in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of a first state of a mounting rod provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a second state of a mounting rod provided by an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of a first mounting member and a mounting rod provided in an embodiment of the present invention;

[0027] Figure 6 A cross-sectional schematic diagram of a second mounting member provided in an embodiment of the present invention.

[0028] Icons: 10-dephosphorus removal device; 100-dephosphorus removal box; 110-opening; 200-mounting rod; 210-limiting part; 220-rod head; 300-chain; 400-first mounting part; 410-cover plate; 500-second mounting part; 510-mounting groove; 520-mounting hole; 600-conveying roller; 20-billet. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0034] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0035] In the current dephosphorization system, the box-type design is generally adopted, and its structural feature is that it is equipped with a door at the front and back. The box is filled with evenly arranged high-pressure water pipes, and each water pipe is equipped with a nozzle for high-pressure spraying. During operation, after the hot-rolled steel plate (referred to as "red steel billet 20") enters the box with the conveyor belt, the system first opens the front door. After the red steel billet 20 passes, the box door is immediately closed, and then the steel billet 20 is washed by high pressure to remove impurities and oxide layers on the surface.

[0036] The main reason for adopting the box-type design is that if closed injection is not adopted, it is very easy to cause the splashing of iron oxide and other debris, which may not only injure the operator, but also pollute the working environment, thus posing a safety hazard. In view of this, the box-type phosphorus removal system has become the preferred configuration in the industry.

[0037] However, there are some problems in the prior art: 1. The process of opening and closing the door needs to be coordinated with the transmission of the red steel billet 20 and the start and stop of the roller motor, and also needs to cooperate with the hydraulic system, which makes the operation more complicated; 2. The frequent start and stop of multiple devices increases the power consumption and leads to increased energy costs; 3. The frequent opening and closing of the hydraulic door leads to a high failure rate.

[0038] Based on the above questions, please refer to Figures 1 to 6 The embodiment of the present invention provides a dephosphorization device 10, which uses a multi-layer chain 300 to replace the door structure in the hydraulic system. The chain 300 driving method simplifies the operation process of the door, effectively reduces the production cost, reduces the opening and closing failure rate, and effectively solves the above problems.

[0039] However, this transformation also faces new problems. The chain 300 is prone to rust in the environment of contact with the red steel billet 20 and high-pressure water. Once rusted, it needs to be replaced. The usual practice is to repair and replace the chain 300 in a shutdown state. This process is time-consuming and is not conducive to maintaining the efficient operation of the production line.

[0040] Therefore, the dephosphorization device 10 provided by the present invention can not only solve some deficiencies of the original technology by adopting the modification scheme of driving the door with the chain 300, but also solve the maintenance demand and the extended downtime of the production line caused by the rust of the chain 300.

[0041] In detail, the phosphorus removal device 10 includes a phosphorus removal box 100 , a mounting bar 200 , and a chain 300 .

[0042] The dephosphorization box 100 is provided with an opening 110 ; the mounting rod 200 is detachably arranged on the dephosphorization box 100 ; there are a plurality of chains 300 , and the plurality of chains 300 are detachably hung on the mounting rod 200 to cover the opening 110 .

[0043] In the present embodiment, the steel billet 20 to be dephosphorized is transported in and out of the dephosphorization box 100 through the opening 110. After the steel billet 20 to be dephosphorized enters the dephosphorization box 100, the mounting rod 200 with multiple chains 300 can be installed at the opening 110 of the dephosphorization box 100 to cover the opening 110 and prevent debris such as oxidized iron from splashing out of the dephosphorization box 100 during the cleaning process, thereby avoiding harm to the operator and pollution of the working environment. After the chain 300 is rusted, it is only necessary to remove the mounting rod 200 from the dephosphorization box 100, remove the multiple chains 300 from the mounting rod 200, and re-hang multiple new chains 300 to complete the replacement of the chain 300, with high assembly efficiency and low use cost.

[0044] Furthermore, the mounting rod 200 is provided with a plurality of stoppers 210 along the length direction. The plurality of stoppers 210 are staggeredly arranged on both sides of the mounting rod 200 in opposite directions. The chain 300 is arranged between two adjacent stoppers 210 .

[0045] In this embodiment, a plurality of limiting portions 210 evenly spaced along the length direction of the mounting rod 200 are provided on the mounting rod 200 to limit the chain 300, that is, each chain 300 is hung between two adjacent limiting portions 210 on the mounting rod 200 to ensure that the plurality of chains 300 can be evenly distributed on the mounting rod 200, thereby preventing the chain 300 from sliding on the mounting rod 200 and causing the plurality of chains 300 to be concentrated on one side of the mounting rod 200 and expose the opening 110 of the dephosphorization box 100.

[0046] It is worth mentioning that “a plurality of limit portions 210 are staggeredly arranged on both sides of the mounting rod 200 in opposite directions” means that, as shown in the figure, a plurality of limit portions 210 are distributed in two rows on both sides of the mounting rod 200, and the midpoint position of any two limit portions 210 in the same row is arranged corresponding to a limit portion 210 in the other row.

[0047] Since each link of the chain 300 is waist-shaped, when installing, Figure 3 As shown, the mounting rod 200 is rotated so that the limiting portions 210 on both sides of the mounting rod 200 are located at the upper and lower sides of the mounting rod 200, so as to facilitate the hanging of the chain 300; and after the multiple chains 300 are hung, the mounting rod is rotated 200°, as shown in FIG. Figure 4 As shown, the limiting parts 210 located at the upper and lower sides of the installation rod 200 are located at the left and right sides of the installation rod 200, so that the two rows of limiting parts 210 respectively limit the multiple chains 300.

[0048] In order to facilitate the rotation of the installation rod 200, a rod head 220 is further provided at the end of the installation rod 200. The rod head 220 is used to drive the installation rod 200 to rotate under the action of an external force.

[0049] In this embodiment, the rod head 220 is in a square shape.

[0050] Furthermore, there are multiple mounting rods 200 , and the multiple mounting rods 200 can be detachably disposed on the dephosphorization box 100 .

[0051] In this embodiment, a plurality of side-by-side mounting rods 200 are provided, and a plurality of chains 300 are hung on the plurality of mounting rods 200 , so as to increase the distribution density of the plurality of chains 300 , thereby effectively shielding the debris such as iron oxide scale splashed during the cleaning process.

[0052] Alternatively, if Figure 5 As shown, the number of the mounting rods 200 may be three, that is, three rows of parallel chains 300 are hung on the three mounting rods 200 .

[0053] Furthermore, the dephosphorization device 10 further includes a first mounting member 400 , a plurality of mounting rods 200 are arranged side by side on the first mounting member 400 , and the first mounting member 400 is detachably arranged on the dephosphorization box 100 .

[0054] In this embodiment, by installing a plurality of installation rods 200 side by side on the first installation member 400 , it is convenient to install the plurality of installation rods 200 with the chains 300 hung thereon on the phosphorus removal box 100 .

[0055] Furthermore, the dephosphorization device 10 further includes a second mounting member 500 , which is disposed on the top of the opening 110 of the dephosphorization box 100 , and the first mounting member 400 is detachably disposed on the second mounting member 500 .

[0056] It is worth mentioning that the second mounting member 500 can be welded to the dephosphorization box 100. Of course, in addition to this, it can also be fixed by other connection methods, which are not specifically limited here.

[0057] Furthermore, the second mounting member 500 is provided with a mounting groove 510, the bottom wall of the mounting groove 510 is provided with a mounting hole 520, and the area of ​​the top opening 110 of the mounting groove 510 is larger than the area of ​​the mounting hole 520, the shape of the first mounting member 400 matches the shape of the mounting groove 510, and the first mounting member 400 is detachably arranged in the mounting groove 510.

[0058] In this embodiment, the outer contour shape of the first mounting member 400 matches the inner wall contour shape of the mounting groove 510, and the area of ​​the top opening 110 of the mounting groove 510 is larger than the area of ​​the mounting hole 520, so that the first mounting member 400 can be stably installed in the mounting groove 510, and under the action of gravity of the first mounting member 400, the mounting rod 200 and the chain 300, the first mounting member 400 can be more tightly clamped in the mounting groove 510, thereby improving the structural stability of the first mounting member 400 and the second mounting member 500.

[0059] It is understandable that when the first mounting member 400 is mounted to the mounting groove 510 , the chain 300 hung on the mounting rod 200 passes through the mounting hole 520 and extends vertically downward under the action of gravity to cover the opening 110 of the dephosphorization box 100 .

[0060] In detail, the groove width of the mounting groove 510 gradually decreases in the vertical downward direction, so that the first mounting member 400 and the second mounting member 500 are closely matched when the first mounting member 400 is mounted to the mounting groove 510 .

[0061] In this embodiment, the cross section of the mounting groove 510 is substantially V-shaped.

[0062] Furthermore, openings 110 are provided on opposite side walls of the dephosphorization box 100 , and there are two first mounting members 400 and two second mounting members 500 . The two second mounting members 500 are respectively provided at the two openings 110 , and the two first mounting members 400 are respectively detachably provided at the two second mounting members 500 .

[0063] In this embodiment, the steel billet 20 enters the dephosphorization box 100 from one of the openings 110 for cleaning and can exit through the other opening 110 ; and a first mounting member 400 and a second mounting member 500 are provided at both openings 110 , that is, a chain 300 is provided at both openings 110 , thereby effectively shielding the two openings 110 .

[0064] Furthermore, both ends of the mounting rod 200 are hung on the first mounting member 400 , and the first mounting member 400 is further provided with a cover plate 410 , and the cover plate 410 is covered on both ends of the mounting rod 200 through fasteners.

[0065] In this embodiment, the cover plate 410 is covered on the end of the mounting rod 200 and fixed by fasteners such as bolts to fix the mounting rod 200 and prevent the mounting rod 200 from falling off the first mounting member 400.

[0066] Furthermore, the dephosphorization device 10 further includes a conveying roller 600 , and the dephosphorization box 100 is disposed on the conveying roller 600 , and the conveying roller 600 is used to convey the steel billet 20 to be dephosphorized.

[0067] In this embodiment, after the steel billet 20 to be dephosphorized is conveyed to the dephosphorization box 100 by the conveying roller 600, the mounting rod 200 with the chain 300 is installed at the opening 110 of the dephosphorization box 100 to form a door of the dephosphorization box 100, so that the dephosphorization operation can be carried out safely; after the cleaning is completed, the cleaned steel billet 20 can be conveyed out of the dephosphorization box 100 by the conveying roller 600, thereby realizing the automated operation of the dephosphorization box 100.

[0068] In summary, the embodiment of the present invention provides a dephosphorization device 10, wherein the steel billet 20 to be dephosphorized is transported in and out of the dephosphorization box 100 through the opening 110. After the steel billet 20 to be dephosphorized enters the dephosphorization box 100, the mounting rod 200 with a plurality of chains 300 can be mounted at the opening 110 of the dephosphorization box 100 to cover the opening 110, thereby preventing the oxide scale and other debris from splashing out of the dephosphorization box 100 during the cleaning process, thereby avoiding harm to the operator and pollution of the working environment; and after the chain 300 is rusted, it is only necessary to remove the mounting rod 200 from the dephosphorization box 100, then remove all the chains 300 on the mounting rod 200, and then reinstall a plurality of new chains 300. This process not only improves the assembly efficiency of the dephosphorization device 10, but also significantly reduces the operating cost.

[0069] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A phosphorus removal device, characterized in that: include: A phosphorus removal box (100), wherein the phosphorus removal box (100) is provided with an opening (110); A mounting rod (200), wherein the mounting rod (200) is detachably mounted on the dephosphorization box (100); A chain (300), wherein the number of the chains (300) is plural, and the multiple chains (300) are detachably hung on the mounting rod (200) to cover the opening (110).

2. The phosphorus removal device according to claim 1, characterized in that: The installation rod (200) is provided with a plurality of limiting portions (210) protruding along the length direction, and the chain (300) is arranged between two adjacent limiting portions (210).

3. The phosphorus removal device according to claim 2, characterized in that: The plurality of limiting portions (210) are arranged alternately on two sides of the mounting rod (200) in opposite directions.

4. The phosphorus removal device according to claim 1, characterized in that: There are a plurality of mounting rods (200), and the plurality of mounting rods (200) can be detachably arranged on the phosphorus removal box (100).

5. The phosphorus removal device according to claim 4, characterized in that: The dephosphorization device further comprises a first mounting member (400), a plurality of mounting rods (200) are arranged side by side on the first mounting member (400), and the first mounting member (400) is detachably arranged on the dephosphorization box (100).

6. The phosphorus removal device according to claim 5, characterized in that: The dephosphorization device further comprises a second mounting member (500), wherein the second mounting member (500) is arranged at the top of the opening (110) of the dephosphorization box (100), and the first mounting member (400) is detachably arranged on the second mounting member (500).

7. The phosphorus removal device according to claim 6, characterized in that: The second mounting member (500) is provided with a mounting groove (510), the bottom wall of the mounting groove (510) is provided with a mounting hole (520), and the area of ​​the top opening (110) of the mounting groove (510) is larger than the area of ​​the mounting hole (520), the shape of the first mounting member (400) matches the shape of the mounting groove (510), and the first mounting member (400) is detachably arranged in the mounting groove (510).

8. The phosphorus removal device according to claim 7, characterized in that: The groove width of the installation groove (510) gradually decreases in the vertical downward direction.

9. The phosphorus removal device according to claim 5, characterized in that: The two ends of the mounting rod (200) are hung on the first mounting member (400), and the first mounting member (400) is further provided with a cover plate (410), and the cover plate (410) is covered on the two ends of the mounting rod (200) through fasteners.

10. The phosphorus removal device according to claim 1, characterized in that: The dephosphorization device further comprises a conveying roller (600), the dephosphorization box (100) is arranged on the conveying roller (600), and the conveying roller (600) is used to convey the steel billet (20) to be dephosphorized.

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