Rapid zinc ingot adding device and using method

Abstract

The invention belongs to the technical field of H-shaped blank continuous casting, and particularly relates to a rapid zinc ingot adding device and a using method. The rapid zinc ingot adding device comprises a rack, the rack is obliquely arranged, a carrier roller is arranged on the upper portion of the rack, a zinc pot is arranged on the lower portion of the oblique end of the rack, a furnace nose is arranged above the zinc pot, a furnace nose steel structure platform is arranged on the upper portion of the furnace nose, a pulley support is arranged at the end of the furnace nose steel structure platform, a pulley is arranged on the pulley support, and a thermal expansion chamber platform is arranged on the top of the furnace nose. A traction crane is arranged on the thermal expansion chamber platform, and a steel wire rope is arranged at the traction end of the traction crane and bypasses the pulley to be connected with a zinc ingot. According to the invention, the zinc ingot is hung on the feeding platform of the rack in a certain direction through the traction crane, the zinc ingot stably slides into the zinc liquid level of the zinc pot through the gravity and the traction force of the steel wire rope of the crane, the zinc ingot is quickly added into the zinc pot, and the problem that the zinc ingot cannot be added in time in the existing galvanized wire production process is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of continuous casting, and particularly relates to a device for quickly adding zinc ingots and a using method thereof. Background Art

[0002] In continuous hot-dip galvanizing production, the amount and composition of the zinc liquid in the zinc pot are dynamically changing. As production progresses, the zinc liquid will gradually be consumed, and in particular, the content of impurities such as Fe may increase, resulting in an increase in the viscosity of the zinc liquid and a decrease in fluidity. In order to maintain the quality and fluidity of the zinc liquid, new zinc ingots need to be added to the zinc pot regularly to ensure the uniformity and quality of the coating thickness.

[0003] In existing hot-dip galvanizing units, in order to meet the requirements of the coating thickness of galvanized sheets, new zinc ingots need to be continuously added to the zinc pot. In the prior art, for ordinary hot-dip galvanized GI sheets, generally, hoisting winches are designed and installed on both sides of the furnace nose to add zinc ingots from both sides of the zinc pot. For thick-coated steel sheets, the amount of zinc ingots to be added increases sharply, and it is often too late to supplement the zinc ingots by adding them online from the side of the zinc pot. When producing high-grade zinc-aluminum plates and alloy plates, the temperature control accuracy of the zinc liquid surface is required to be very high, and a pre-melting pot is often added on the side of the zinc pot. The pre-melting pot pre-melts zinc liquid at an appropriate temperature in advance, otherwise it is too late to add zinc ingots during the production process. Summary of the Invention

[0004] In view of the above problems, the object of the present invention is to provide a device for quickly adding zinc ingots and a using method thereof. The device uses a hoisting winch to hang zinc ingots on the feeding platform of the rack in a certain direction, and the zinc ingots stably slide into the zinc liquid surface of the zinc pot by gravity and the traction force of the winch steel wire rope, realizing the quick addition of zinc ingots to the zinc pot and solving the problem of being too late to add zinc ingots during the production process of the existing galvanizing line.

[0005] The technical solution of the present invention is as follows: A device for quickly adding zinc ingots, including a rack, the rack is inclined, a roller is provided on the upper part of the rack, a zinc pot is provided below the inclined end of the rack, a furnace nose is provided above the zinc pot, a furnace nose steel structure platform is provided above the furnace nose, a pulley bracket is provided at the end of the furnace nose steel structure platform, a pulley is provided on the pulley bracket, a hot tension chamber platform is provided at the top of the furnace nose, a hoisting winch is provided on the hot tension chamber platform, a steel wire rope is provided at the traction end of the hoisting winch, and the steel wire rope bypasses the pulley and is connected with a zinc ingot.

[0006] At one end of the bottom of the rack close to the zinc pot, there are front row legs, the front row legs are fixedly connected with the I-beam fence of the zinc pot, at the end of the bottom of the rack far from the zinc pot, there are multiple groups of rear row legs, the rear row legs are fixedly connected with the ground, on both sides of the upper part of the rack, there are rack side plates, and a plurality of U-shaped grooves are provided on the rack side plates for placing rollers.

[0007] A protective steel plate is provided above the side plate of the frame. A threaded steel plate is provided outside the side plate of the frame. The threaded steel plate is located below the idler. A jackscrew is provided on the threaded steel plate, and a first nut is provided on the jackscrew. A pressing plate is provided above the idler on the side plate of the frame. A pressing plate bolt is provided on the pressing plate, and the pressing plate is fixed to the side plate of the frame through the pressing plate bolt.

[0008] The idler includes a roller. A core shaft is provided inside the roller. Idler shaft heads are respectively provided at both ends of the core shaft. The idler shaft heads are rectangular. Bearings are provided at positions near the ends of the roller at both ends of the core shaft. A hole-type snap ring and a shaft-type snap ring are respectively provided outside the bearings.

[0009] An inclined support plate is provided at one end of the frame away from the zinc pot, and a square protective frame is provided at one end of the frame close to the zinc pot.

[0010] The angle A between the sliding surface of the idler and the ground plane ranges from 10° to 15°, and the spacing of the idlers should not exceed 1 / 3 of the contact length between the zinc ingot and the idler plane.

[0011] The angle B between the inclined surface at the end of the frame near the edge of the zinc pot and the ground plane ranges from 40° to 50°. The end of the inclined surface exceeds the edge of the zinc pot by 200 mm and is flush with the upper end surface of the zinc pot. The tail of the frame exceeds the length of the nose steel structure platform by 700 mm.

[0012] The pulley includes a wheel body and a base. The wheel body is a U-shaped roller with a rolling bearing built in. Second nuts are provided at both ends of the bearing, and the wheel body is rotatably connected to the base through the second nuts.

[0013] A method for using a rapid zinc ingot adding device, using the above-mentioned rapid zinc ingot adding device, includes the following steps: S1: The crane hoists the zinc ingot from the ground, ties the zinc ingot with a special alloy chain for zinc ingots, hangs the steel wire rope of the crane on the alloy chain, hoists the zinc ingot to a height slightly higher than the frame, then operates the crane to move horizontally to directly above the frame, and then operates the crane to slowly lower it until it lands on the inclined support plate of the frame and contacts the topmost idler at a certain oblique angle. At this time, the steel wire rope is stressed, and the zinc ingot can be fixed at a certain angle. S2: When zinc ingots need to be added, the steel wire rope continues to lower. At this time, the zinc ingots slowly slide into the zinc pot along the inclined surface of the idlers by relying on gravity and the traction force of the steel wire rope. While the zinc ingots are sliding, the steel wire rope of the crane descends until the entire zinc ingot is completely immersed in the zinc pot. After all the zinc ingots in the zinc pot are melted, raise the steel wire rope of the crane, fish out the special alloy chain for zinc ingots from the zinc pot, and the alloy chain can be reused after cooling, completing a single zinc ingot adding operation.

[0014] The technical effects of the present invention are as follows: 1. The present invention uses a traction crane to hang the zinc ingot on the feeding platform of the frame in a certain direction. The zinc ingot stably slides into the zinc liquid level of the zinc pot through gravity and the traction force of the crane wire rope, so that the zinc ingot can be quickly added to the zinc pot, solving the problem of not having enough time to add the zinc ingot during the production process of the existing galvanizing line. 2. The frame of the present invention is provided with threaded steel plates on both sides, and the threaded steel plates are installed with top screws, which can quickly adjust the height of each roller, so that the sliding surface of the frame roller forms an angle of 10°~15° with the ground plane, ensuring that the zinc ingot slides quickly and stably on the sliding plane. 3. The inclined surface at the end of the frame of the present invention close to the zinc pot forms an angle of 40°~50° with the ground, which facilitates the zinc ingot to enter the zinc liquid in the zinc pot with a vertical downward trend, saves space, and prevents collision with the furnace nose.

[0015] The following is a further description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a rapid zinc ingot adding device of the present invention.

[0017] Figure 2 It is a partial enlarged view of the frame and roller height adjustment mechanism of the present invention.

[0018] Figure 3 It is a structural sectional view of the roller of the present invention.

[0019] Figure 4 It is a three-dimensional projection view of the pulley of the present invention.

[0020] Figure markings: 1-frame, 2-roller, 3-zinc ingot, 4-pulley, 5-pulley bracket, 6-traction crane, 7-steel wire rope, 8-hot tension chamber platform, 9-furnace nose steel structure platform, 10-furnace nose, 11-zinc pot, 12-frame side panel, 13-rear support legs, 14-front support legs, 15-protective frame, 16-zinc pot I-beam fence, 17-diagonal support plate, 18-protective steel plate, 19-threaded steel plate, 20-pressure plate, 21-roller shaft head, 22-pressure plate bolt, 23-top screw, 24-first nut, 25-core shaft, 26-roller, 27-bearing, 28-elastic retaining ring for hole, 29-elastic retaining ring for shaft, 30-wheel body, 31-second nut, 32-base. DETAILED DESCRIPTION Example 1

[0021] like Figures 1 to 4As shown, a device for quickly adding zinc ingots comprises a frame 1, the frame 1 is tilted, a roller 2 is provided on the upper part of the frame 1, a zinc pot 11 is provided at the lower part of the tilted end of the frame 1, a furnace nose 10 is provided above the zinc pot 11, a furnace nose steel structure platform 9 is provided on the upper part of the furnace nose 10, a pulley bracket 5 is provided at the end of the furnace nose steel structure platform 9, a pulley 4 is provided on the pulley bracket 5, a hot tension chamber platform 8 is provided on the top of the furnace nose 10, a traction crane 6 is provided on the hot tension chamber platform 8, a steel wire rope 7 is provided at the traction end of the traction crane 6, and the steel wire rope 7 is connected to the zinc ingot 3 by passing around the pulley 4.

[0022] When the present invention is used, the traction crane 6 lifts the zinc ingot 3 from the ground, and uses a special alloy chain for zinc ingots to tie it to the zinc ingot 3. The steel wire rope 7 of the traction crane 6 is hung on the alloy chain, and the zinc ingot 3 is lifted to a height slightly higher than the frame 1. Then the traction crane 6 is operated to move horizontally to just above the frame 1, and then the traction crane 6 is operated to slowly fall to the inclined support plate 17 of the frame 1, and contacts the uppermost roller 2 of the frame 1 at a certain angle. At this time, the steel wire rope 7 is stressed, and the zinc ingot 3 can be fixed at a certain angle. When it is necessary to add zinc ingot 3, the steel wire rope 7 continues to fall, and at this time, the zinc ingot 3 slowly slides into the zinc pot 11 along the inclined surface of the roller 2 by relying on gravity and the traction force of the steel wire rope 7. The zinc ingot 3 slides while the steel wire rope 7 of the traction crane 6 descends until the zinc ingot 3 as a whole invades the zinc pot 11. When the zinc ingot 3 in the zinc pot 11 is completely melted, the steel wire rope 7 of the traction crane 6 is raised, and the alloy chain dedicated to the zinc ingot is fished out of the zinc pot 11. The alloy chain can be used repeatedly after cooling, and the single zinc ingot adding operation is completed. The present invention uses a traction crane to hang the zinc ingot on the frame feeding platform in a certain direction. The zinc ingot stably slides into the zinc liquid level of the zinc pot by gravity and the traction force of the crane steel wire rope, so that the zinc ingot can be quickly added to the zinc pot, solving the problem of not having enough time to add the zinc ingot in the production process of the existing galvanizing line. Example 2

[0023] On the basis of Example 1, in this embodiment, preferably, a front row of legs 14 are provided at one end of the bottom of the frame 1 close to the zinc pot 11, and the front row of legs 14 are fixedly connected to the I-beam fence 16 of the zinc pot 11; a plurality of groups of rear row of legs 13 are provided at one end of the bottom of the frame 1 away from the zinc pot 11, and the rear row of legs 13 are fixedly connected to the ground; frame side panels 12 are provided on both sides of the upper part of the frame 1, and a plurality of U-shaped grooves are provided on the frame side panels 12, and the U-shaped grooves are used to place rollers 2.

[0024] When the present invention is used, a plurality of U-shaped grooves are provided on the frame side plate 12, and the U-shaped grooves are used to place the rollers 2, so as to facilitate the installation of the rollers. Example 3

[0025] On the basis of Embodiment 1 or Embodiment 2, in this embodiment, preferably, a protective steel plate 18 is provided above the frame side plate 12, a threaded steel plate 19 is provided outside the frame side plate 12, the threaded steel plate 19 is located below the idler 2, a jackscrew 23 is provided on the threaded steel plate 19, a first nut 24 is provided on the jackscrew 23, a pressing plate 20 is provided above the idler 2 on the frame side plate 12, a pressing plate bolt 22 is provided on the pressing plate 20, and the pressing plate 20 is fixed to the frame side plate 12 through the pressing plate bolt 22.

[0026] When the present invention is in use, a protective steel plate 18 is provided above the frame side plate 12 to prevent the zinc ingots from sliding down and deviating out of the frame when adding zinc ingots. A threaded steel plate 19 is provided outside the frame side plate 12. The threaded steel plate 19 is located below the idler 2. A jackscrew 23 is provided on the threaded steel plate 19. A first nut 24 is provided on the jackscrew 23. A pressing plate 20 is provided above the idler 2 on the frame side plate 12. A pressing plate bolt 22 is provided on the pressing plate 20. The pressing plate 20 is fixed to the frame side plate 12 through the pressing plate bolt 22. By rotating the first nut on the threaded steel plate or the pressing plate with a wrench, the up and down height of each idler is adjusted to make the flatness of the roller surfaces of the rotating idlers consistent. Embodiment 4

[0027] On the basis of Embodiment 1 or Embodiment 3, in this embodiment, preferably, the idler 2 includes a roller 26, a mandrel 25 is provided inside the roller 26, idler shaft heads 21 are respectively provided at both ends of the mandrel 25, the idler shaft heads 21 are rectangular, bearings 27 are provided at positions near the ends of the mandrel 25 at both ends close to the roller 26, and a hole-type snap ring 28 and a shaft-type snap ring 29 are respectively provided outside the bearings 27.

[0028] When the present invention is in use, the idler 2 includes a roller 26, a mandrel 25 is provided inside the roller 26, idler shaft heads 21 are respectively provided at both ends of the mandrel 25, the idler shaft heads 21 are rectangular, which is convenient for inserting into the U-shaped card slots of the frame side plate. When the zinc ingots slide on the roller surface, the mandrel is fixed and the roller rotates. Embodiment 5

[0029] On the basis of Embodiment 1 or Embodiment 4, in this embodiment, preferably, a diagonal brace plate 17 is provided at one end of the frame 1 away from the zinc pot 11, and a square protective frame 15 is provided at one end of the frame 1 close to the zinc pot 11.

[0030] When the present invention is in use, a diagonal brace plate 17 is provided at one end of the frame 1 away from the zinc pot 11, which is convenient for the zinc ingots to stably transition to the sliding plane when falling vertically. A square protective frame 15 is provided at one end of the frame 1 close to the zinc pot 11 to prevent the zinc ingots from colliding with the furnace nose 10 during the fall. Embodiment 6

[0031] On the basis of Embodiment 1 or Embodiment 5, in this embodiment, preferably, the angle A between the sliding surface of the idler roller 2 and the ground plane ranges from 10° to 15°, and the distance between the idler rollers 2 should not exceed 1 / 3 of the contact length between the zinc ingot 3 and the idler roller plane.

[0032] When the present invention is in use, the angle A between the sliding surface of the idler roller 2 and the ground plane ranges from 10° to 15°, ensuring that the zinc ingot 3 slides quickly and stably on the sliding plane and facilitating the operation of the operator. The distance between the idler rollers 2 should not exceed 1 / 3 of the contact length between the zinc ingot 3 and the idler roller plane, ensuring that the zinc ingot contacts at least three idler roller surfaces when sliding to any position. Embodiment 7

[0033] On the basis of Embodiment 1 or Embodiment 6, in this embodiment, preferably, the angle B between the inclined plane at the end of the frame 1 close to the edge of the zinc pot 11 and the ground plane ranges from 40° to 50°. The end of the inclined plane exceeds the edge of the zinc pot 11 by 200 mm and is flush with the upper end surface of the zinc pot 11. The tail of the frame 1 exceeds the length of the nose steel structure platform 9 by 700 mm.

[0034] When the present invention is in use, the angle B between the inclined plane at the end of the frame 1 close to the edge of the zinc pot 11 and the ground plane ranges from 40° to 50°. The end of the inclined plane exceeds the edge of the zinc pot 11 by 200 mm and is flush with the upper end surface of the zinc pot 11, facilitating the zinc ingot to enter the zinc liquid in the zinc pot in a vertically downward trend, saving space and preventing collision with the nose 10. Embodiment 8

[0035] On the basis of Embodiment 1, in this embodiment, preferably, the pulley 4 includes a wheel body 30 and a base 32. The wheel body 30 is a U-shaped roller with a rolling bearing built therein. Second nuts 31 are provided at both ends of the bearing. The wheel body 30 is rotatably connected to the base 32 through the second nuts 31.

[0036] When the present invention is in use, the wheel body 30 is a U-shaped roller with a rolling bearing built therein, enabling the hoisting wire rope of the hoisting crane to be sleeved in the U-shaped groove of the pulley to play a guiding role. Embodiment 9

[0037] A method for using a rapid zinc ingot adding device, using the above-mentioned rapid zinc ingot adding device, includes the following steps: S1: The hoisting crane 6 hoists the zinc ingot 3 from the ground, ties it with a special alloy chain for zinc ingots, hangs the wire rope 7 of the hoisting crane 6 on the alloy chain, hoists the zinc ingot 3 to a height slightly higher than the frame 1, then operates the hoisting crane 6 to move horizontally to directly above the frame 1, and then operates the hoisting crane 6 to slowly lower it until it lands on the diagonal brace 17 of the frame 1 and contacts the uppermost idler roller 2 of the frame 1 at a certain oblique angle. At this time, the wire rope 7 is stressed, and the zinc ingot 3 can be fixed at a certain angle; S2: When zinc ingots 3 need to be added, the wire rope 7 continues to descend. At this time, the zinc ingots 3 slowly slide into the zinc pot 11 along the inclined plane of the idler roller 2 by relying on gravity and the traction force of the wire rope 7. While the zinc ingots 3 are sliding, the wire rope 7 of the hoisting crane 6 descends until the entire zinc ingots 3 are completely immersed in the zinc pot 11. After all the zinc ingots 3 in the zinc pot 11 are melted, the wire rope 7 of the hoisting crane 6 is lifted, and the special alloy chain for zinc ingots is fished out from the zinc pot 11. The alloy chain can be reused after cooling, and a single zinc ingot addition operation is completed.

[0038] The above is only a preferred 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 those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A rapid zinc ingot adding device, characterized in that: The invention comprises a frame (1), wherein the frame (1) is arranged in an inclined manner, a roller (2) is arranged on the upper part of the frame (1), a zinc pot (11) is arranged on the lower part of the inclined end of the frame (1), a furnace nose (10) is arranged above the zinc pot (11), a furnace nose steel structure platform (9) is arranged on the upper part of the furnace nose (10), a pulley bracket (5) is arranged at the end of the furnace nose steel structure platform (9), a pulley (4) is arranged on the pulley bracket (5), a heat tension chamber platform (8) is arranged on the top of the furnace nose (10), a traction crane (6) is arranged on the heat tension chamber platform (8), a steel wire rope (7) is arranged at the traction end of the traction crane (6), and the steel wire rope (7) is connected to the zinc ingot (3) by passing around the pulley (4).

2. A fast zinc ingot adding device according to claim 1, characterized in that: The bottom of the frame (1) is provided with a front row of legs (14) at one end close to the zinc pot (11), and the front row of legs (14) is fixedly connected to the I-beam fence (16) of the zinc pot (11). The bottom of the frame (1) is provided with a plurality of groups of rear row of legs (13) at one end away from the zinc pot (11), and the rear row of legs (13) is fixedly connected to the ground. The upper sides of the frame (1) are provided with frame side panels (12), and the frame side panels (12) are provided with a plurality of U-shaped grooves, and the U-shaped grooves are used to place rollers (2).

3. A fast zinc ingot adding device according to claim 2, characterized in that: A protective steel plate (18) is provided above the frame side plate (12), a threaded steel plate (19) is provided on the outer side of the frame side plate (12), the threaded steel plate (19) is located below the roller (2), a top screw (23) is provided on the threaded steel plate (19), a first nut (24) is provided on the top screw (23), a pressure plate (20) is provided above the roller (2) on the frame side plate (12), a pressure plate bolt (22) is provided on the pressure plate (20), and the pressure plate (20) is fixed to the frame side plate (12) by the pressure plate bolt (22).

4. A fast zinc ingot adding device according to claim 1, characterized in that: The roller (2) comprises a roller (26), a core shaft (25) is arranged inside the roller (26), roller shaft heads (21) are respectively arranged at both ends of the core shaft (25), the roller shaft heads (21) are rectangular, bearings (27) are respectively arranged at both ends of the core shaft (25) near the ends of the roller (26), and elastic retaining rings (28) for holes and elastic retaining rings (29) for shafts are respectively arranged on the outside of the bearings (27).

5. The rapid zinc ingot adding device according to claim 1, characterized in that: An end of the frame (1) away from the zinc pot (11) is provided with a diagonal support plate (17), and an end of the frame (1) close to the zinc pot (11) is provided with a square protective frame (15).

6. The rapid zinc ingot adding device according to claim 1, characterized in that: The angle A between the sliding surface of the roller (2) and the ground plane is in the range of 10° to 15°, and the spacing between the rollers (2) should not exceed 1 / 3 of the contact length between the zinc ingot (3) and the roller plane.

7. The rapid zinc ingot adding device according to claim 1, characterized in that: The angle B between the inclined surface at the end of the frame (1) close to the edge of the zinc pot (11) and the ground plane is in the range of 40° to 50°, the end of the inclined surface exceeds the edge of the zinc pot (11) by 200 mm and is flush with the upper end surface of the zinc pot (11), and the tail of the frame (1) exceeds the length of the furnace nose steel structure platform (9) by 700 mm.

8. The rapid zinc ingot adding device according to claim 1, characterized in that: The pulley (4) comprises a wheel body (30) and a base (32); the wheel body (30) is a U-shaped roller with a built-in rolling bearing; second nuts (31) are provided at both ends of the bearing; and the wheel body (30) is rotatably connected to the base (32) via the second nuts (31).

9. A method for using a fast zinc ingot adding device, using the fast zinc ingot adding device as claimed in claim 1, characterized in that: The following steps are involved: S1: The traction crane (6) lifts the zinc ingot (3) from the ground and ties the zinc ingot with a special alloy chain. The steel wire rope (7) of the traction crane (6) is hung on the alloy chain. The zinc ingot (3) is lifted to a height slightly higher than the frame (1). The traction crane (6) is then operated to move horizontally to the top of the frame (1). The traction crane (6) is then operated to slowly drop to the inclined support plate (17) of the frame (1) and contact the uppermost roller (2) of the frame (1) at a certain angle. At this time, the steel wire rope (7) is stressed and the zinc ingot (3) can be fixed at a certain angle. S2: When it is necessary to add the zinc ingot (3), the steel wire rope (7) continues to fall. At this time, the zinc ingot (3) slowly slides into the zinc pot (11) along the inclined surface of the roller (2) by gravity and the traction force of the steel wire rope (7). As the zinc ingot (3) slides, the steel wire rope (7) of the traction crane (6) descends until the zinc ingot (3) is completely inserted into the zinc pot (11). When the zinc ingot (3) in the zinc pot (11) is completely melted, the steel wire rope (7) of the traction crane (6) is raised, and the alloy chain dedicated to the zinc ingot is fished out of the zinc pot (11). The alloy chain can be used repeatedly after cooling, completing a single zinc ingot adding operation.

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