CN113290057A - Hot-rolled strip coiling device, coiling and uncoiling system and coiling device arrangement structure - Google Patents

Abstract

The invention provides a hot-rolled strip coiling device, a coiling and uncoiling system and an arrangement structure, which comprise a conveying roller way for conveying hot-rolled strips and an overground coiling machine for coiling the strips, wherein the coiling central line of the overground coiling machine is above the ground elevation, and a strip conveying mechanism is arranged between the conveying roller way and the overground coiling machine and is used for conveying the strips from the conveying roller way to the overground coiling machine. According to the invention, the waste heat of the hot-rolled production plate strip steel is utilized to produce green products such as large hot-bent steel section steel for the structure, so that the energy is saved and the emission is reduced. The hot-rolled plate strip directly enters an aboveground coiling device through a conveying mechanism to be coiled, so that the temperature drop of a steel coil in the transportation process is avoided, and the hot-rolled plate strip can be directly used for the production of subsequent hot bending forming and the like; and the steel coil transportation and lifting equipment, the cooling ditch depth, the foundation construction and the construction cost of auxiliary facilities of a factory are reduced.

Description

Hot-rolled strip coiling device, coiling and uncoiling system and coiling device arrangement structure

Technical Field

The invention belongs to the technical field of metallurgy, and particularly relates to a hot-rolled strip coiling device, a coiling and uncoiling system and a coiling device arrangement structure.

Background

At present, an underground coiler for hot-rolled strips is generally small in coiling thickness, the strip thickness is 1.2-25.4 mm, the strip width is 600-2300 mm, the temperature is generally 500-750 ℃, the distance between the center of a coiled steel coil and the ground elevation is about-1300 mm, the steel coil needs to be transported and raised to the ground center elevation plus 1000mm, production and processing such as hot bending forming can be continuously carried out, and the temperature of the steel coil is further reduced in the process that the steel coil is transported and raised to the ground, so that the requirements of continuous production and processing of products such as hot bending section steel can not be met.

Disclosure of Invention

In view of the above disadvantages of the prior art, the present invention aims to provide a hot rolled strip coiling apparatus, which reduces the steel coil lifting step and reduces the temperature drop, so that the steel coil can meet the production and processing requirements of steel hot-bent section steel for structural use.

In order to achieve the above and other related objects, the present invention provides a hot-rolled strip coiling apparatus, including a rollgang for conveying a hot-rolled strip and an above-ground coiler for coiling the strip, wherein a coiling center line of the above-ground coiler is above a ground elevation, and a strip conveying mechanism is disposed between the rollgang and the above-ground coiler for conveying the strip from the rollgang to the above-ground coiler.

Optionally, the plate strip conveying mechanism is arranged obliquely, and one end connected with the conveying roller way is lower than one end connected with the aboveground coiling machine.

Optionally, the strip conveying mechanism comprises a guide pinch roll, an inclined roller table and a bending pinch roll; the pinch roll is arranged between the conveying roller way and the inclined roller way and is used for redirecting pinch plate strips and plate strips; the bending pinch roll is arranged between the outlet of the inclined roller way and the inlet of the aboveground coiling machine and used for guiding the plate strip to change direction and enter the aboveground coiling machine.

Optionally, the guide pinch roll comprises a first swing press roll, a first upper movable pinch roll and a first lower pinch roll, and a center line of the first upper movable pinch roll and a center line of the first lower pinch roll are staggered in the vertical direction.

Optionally, the curved pinch roll comprises a second swing press roll, a second upper movable pinch roll and a second lower pinch roll, and a center line of the second upper movable pinch roll and a center line of the second lower pinch roll are staggered in the vertical direction.

Optionally, the above-ground recoiling machine comprises a frame, a collapsible drum arranged on the frame, wrapper rollers and a transmission device thereof, wherein the number of the wrapper rollers is three or four, and the wrapper rollers are circumferentially arranged.

Optionally, the above-ground reeling machine is a reel-less reeling machine and comprises a rack, three or four reeling rollers arranged on the rack and a transmission device of the reeling rollers.

Optionally, when three wrapper rollers are provided, an included angle between adjacent wrapper rollers along the circumferential direction is 100-140 degrees; when the number of the wrapper rollers is four, the included angle of the adjacent wrapper rollers along the circumferential direction is 70-120 degrees.

Optionally, the inclined angle of the inclined roller way relative to the horizontal direction is 30 degrees or less.

The invention also provides a hot rolled strip coiling and uncoiling system which comprises the hot rolled strip coiling device, wherein a coil discharging vehicle is arranged on one side of the overground coiling machine, the center line of the overground coiling machine in the width direction of the strip corresponds to the strip center line of an upstream hot rolling line, and the center line of the coil discharging vehicle in the width direction of the coil corresponds to the strip center line of a downstream production line.

Optionally, an uncoiling device and a straightening machine are arranged downstream of the coil stripper, and the uncoiling device comprises a driving mechanism, a supporting structure, a swinging seat, an upper rotating roller, a lower rotating roller and a swinging cutter head, wherein the upper rotating roller and the lower rotating roller are arranged on the swinging seat; the swing seat is installed on bearing structure to can swing at the within range appointed for bearing structure, the swing seat is close to or leaves the coil of strip along with bearing structure motion under the actuating mechanism effect, go up the rotor and be used for opening a book the time with the coil of strip contact, the lower rotor is used for pressing off the slab band head of coil of strip.

The invention also provides an arrangement structure of the hot-rolled plate strip coiling device, which comprises the hot-rolled plate strip coiling device, wherein the overground coiler is arranged behind a four-roller mill of a hot-rolled medium plate production line or a steckel mill production line and in front of a cooling bed; or after cooling the bed; or after an underground coiler; or the above-ground coiler is arranged after the finishing mill of the hot continuous rolling line or after the underground coiler.

The invention also provides an arrangement structure of the hot-rolled plate strip coiling device, which comprises the hot-rolled plate strip coiling device, wherein the overground coiler is arranged behind a roughing mill of a hot-rolled medium plate production line or a steckel mill production line and can be integrally pushed and pulled to the transmission side to enter and exit the production line.

As described above, the present invention has the following advantageous effects: the waste heat of hot rolling production plate strip steel is utilized to produce green products such as large hot bent section steel for structural steel, and the like, thereby saving energy and reducing emission. The hot-rolled plate strip directly enters an aboveground coiling device through a conveying mechanism to be coiled, so that the temperature drop of a steel coil in the transportation process is avoided, and the hot-rolled plate strip can be directly used for the production of subsequent hot bending forming and the like; and the steel coil transportation and lifting equipment, the cooling ditch depth, the foundation construction and the construction cost of auxiliary facilities of a factory are reduced. The invention can be used for the new construction of hot rolled strip equipment or the technical transformation of old production line equipment, and can be used for high-temperature ultra-thick ultra-wide strip or hot-receiving strip shearing production line equipment required by the cross production of products such as conventional hot rolled strip coils, large hot bent section steel and the like.

Drawings

FIG. 1 is a schematic view showing the arrangement of the hot rolled sheet strip coiling apparatus in an embodiment in a vertical plane (the open position of three wrapper rolls);

FIG. 2 is a schematic view showing the arrangement of the hot rolled sheet strip coiling apparatus in an embodiment in a vertical plane (minimum position of the four wrapper rolls to be coiled);

FIG. 3 is a schematic view showing the layout of the above-ground coiler and the below-ground coiler for the hot rolled strip in another embodiment;

FIG. 4 is a schematic plan view (top view) of a hot rolled strip coiler according to an embodiment;

FIG. 5 is a schematic view of a coil transporting apparatus of an underground coiler in one embodiment;

FIG. 6 is a schematic view showing a structure in which an uncoiling apparatus and a leveler are arranged in one embodiment;

FIG. 7 is a partial view of FIG. 6;

FIG. 8 is a schematic view of the unwinding device of FIG. 7;

FIG. 9 is a schematic view of an assembled configuration of the oscillating cutter head;

FIG. 10 is a schematic view of the arrangement of three wrapper rollers;

FIG. 11 is a schematic layout of four wrapper rollers;

FIG. 12 is a schematic view showing the arrangement of a hot rolled strip coiling apparatus in a medium plate line or a steckel mill line according to an embodiment;

FIG. 13 is a schematic view showing the arrangement of a hot rolled strip coiler in the hot continuous rolling line according to one embodiment;

FIG. 14 is a schematic view showing the arrangement (side push pull in whole) in a heavy plate line or steckel mill line of the hot rolled sheet strip coiling apparatus in one embodiment.

Part number description:

100-an aboveground coiler; 11-a frame; 12-a wrapper roll; 13-collapsible drum; 21-conveying roller way; 22-a first oscillating press roller; 23-first upper moving pinch rolls; 24-a first lower pinch roll; 25-inclined roller way; 26-a second oscillating press roll; 27-second upper moving pinch rolls; 28-a second lower pinch roll; 29-a swinging door; 300-an underground coiler; 31-intermediate roller table; 32-a baler; 33-coil conveying vehicle; 34-steel coil transportation equipment; 4-coil unloading vehicle; 5, plate and strip; 6-steel coil; 7-unwinding device; 71-a rotary drive mechanism; 72-a support structure; 73-support shaft; 74-a swing seat; 75-a wobble tool bit; 76-an upper rotating roller; 77-lower rotating roller; 78-a support frame; 79-a swing drive mechanism; 7 a-a first stopper; 7 b-a second stop block; 8-straightening machine; 9-plate with head.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Example 1

As shown in fig. 1 and 2, the hot-rolled strip coiling apparatus according to the present embodiment includes a rollgang 21 for transporting a hot-rolled strip and an above-ground coiler 100 for coiling a strip 5, wherein a coiling center line of the above-ground coiler 100 is at or above ground level, and a strip transporting mechanism is provided between the rollgang 21 and the above-ground coiler 100 for transporting the strip from the rollgang 21 to the above-ground coiler 100.

The center line of the coiler, namely the center line of the winding drum (when the winding drum exists) or the center line elevation of the steel coil is more than plus or minus 0 (including plus or minus 0) of the ground elevation.

Normally, the elevation of the hot rolling line is not high enough to reach the inlet of the upper-ground coiler 100, so the plate strip conveying mechanism is arranged obliquely, and the end connected with the rollgang 21 is lower than the end connected with the upper-ground coiler 100, so that the plate strip is lifted and conveyed to the upper-ground coiler 100; the conveying roller way 21 in this example can be a newly added roller way; when used in a hot rolling line, the rollgang 21 may be part of the original production line.

Specifically, the plate strip conveying mechanism comprises a guide pinch roll, an inclined roller way 25 and a bending pinch roll; the pinch roll is arranged between the conveying roller table 21 and the inclined roller table 25 and is used for redirecting the pinch strip 5 and the strip 5; the bending pinch roll is arranged between the outlet of the inclined roller way 25 and the inlet of the upper-ground coiler 100 and is used for guiding the strip 5 to change the direction and enter the upper-ground coiler 100.

The guiding pinch roll comprises a first swinging press roll 22, a first upper moving pinch roll 23 and a first lower pinch roll 24, the first swinging press roll 22 is arranged above the position, close to an outlet, of the conveying roller way 21, the center line of the first upper moving pinch roll 23 and the center line of the first lower pinch roll 24 are staggered in the vertical direction, namely the first upper moving pinch roll and the first lower pinch roll are arranged in tandem along the strip conveying direction, the first lower pinch roll 24 is a fixed roll, and the moving direction of the first upper moving pinch roll 23 is the up-down direction.

The bending pinch roll comprises a second swinging press roll 26, a second upper moving pinch roll 27 and a second lower pinch roll 28, the second swinging press roll 26 is located above the tail end of the inclined roller table 25, the center line of the second upper moving pinch roll 27 and the center line of the second lower pinch roll 28 are staggered in the vertical direction, namely the second upper moving pinch roll and the second lower pinch roll are arranged in tandem along the strip conveying direction, the movable direction of the second upper moving pinch roll 27 is the up-down direction, and the second lower pinch roll 28 is a fixed roll or can move back and forth along the strip 5 conveying direction so as to adapt to different strip thicknesses and feeding angles.

In one embodiment, the above-ground reeling machine 100 comprises a frame 11, a collapsible reel 13 arranged on the frame 11, auxiliary reeling rollers 12 and a transmission device thereof, wherein the auxiliary reeling rollers 12 are three or four circumferentially arranged with a reeling center as a circle center. The frame 11, the collapsible drum 13, the auxiliary winding roller 12 and the transmission device thereof can adopt the prior structure. In the process of coiling the plate strip, the plate strip can continuously participate in the process of coiling the plate strip by the collapsible reel 13 according to the plate strip thickness, or participate in the process of coiling the plate strip by the collapsible reel 13 in a clearance mode.

In one embodiment, the above-ground coiler 100 is a coreless coiler, i.e. a collapsible reel 13 and its reel transmission, a reel swing outer support, etc.; the winding device comprises a frame 11, winding assisting rollers 12 arranged on the frame 11 and a transmission device thereof, wherein the number of the winding assisting rollers 12 is three or four, and the winding assisting rollers are circumferentially arranged.

When the number of the wrapper rollers 12 is three, included angles a1, a2 and a3 of adjacent wrapper rollers 12 along the circumferential direction are respectively 100-140 degrees, as shown in fig. 10; when the number of the wrapper rollers 12 is four, the included angles b1, b2, b3 and b4 of the adjacent wrapper rollers 12 along the circumferential direction are respectively 70-120 degrees, as shown in fig. 11. An arc guide plate is arranged between the wrapper rollers and guides the head of the plate to pass through the coil.

In some embodiments, the inclined roller table 25 has an inclination angle of 30 degrees or less, i.e., 30 degrees or less, with respect to the horizontal direction.

The above-ground coiling device can be used in a new production line or used for modifying an old production line.

Example 2

As shown in fig. 3 to 5, the difference between this embodiment and embodiment 1 is that the hot rolled strip coiling apparatus further includes an underground coiler 300, the elevation of the central line of the winding drum of the underground coiler 300 is lower than the elevation of the ground, a swinging door 29 capable of swinging up and down is further disposed between the guiding pinch roll and the inclined roller way 25, the swinging door 29 can be driven by a hydraulic cylinder, and is used for guiding the strip 5 to enter the inclined roller way 25 or the underground coiler 300, that is, when the swinging door 29 swings to an upward position, the strip 5 is guided to enter the above-ground coiler 100 through the inclined roller way 25, and when the swinging door 29 swings to a downward position, the strip 5 is guided to enter the underground coiler 300. The structure can be applied to the production line transformation of arranging the underground recoiling machine 300, and can be used for simultaneously and alternately producing high-temperature ultra-thick ultra-wide plate strips needed by conventional hot rolled plate strip coils and large hot bent steel sections, or cutting, trimming and cutting fixed-length plate strip production line equipment for hot-rolled plate strips.

Wherein, the underground recoiling machine 300 is provided with a coil discharging car 4, a bundling machine 32, a coil transporting car 33, a coil transporting device 34 and the like, as shown in the figure, two underground recoiling machines 300 and the accessory devices thereof are arranged in the front and at the back along the conveying direction of the plate strip 5, one aboveground recoiling machine 100 is arranged, an intermediate roller way 31 is arranged between the two underground recoiling machines 300 to convey the plate strip 5, an inclined roller way 25 is used for connecting the roller way 21 and the aboveground recoiling machine 100, when the upper recoiling machine 100 is selected to coil, the plate strip 5 is emptied by the two underground recoiling machines 300 through the inclined roller way 25, and when the lower recoiling machine 300 is selected, the plate strip 5 is conveyed through; the coil conveying vehicle 33 comprises a horizontal moving device, a coil supporting roller lifting device, a coil supporting roller positioning device and the like; the steel coil transportation equipment 34 can be a lifting walking trolley, a transportation chain, a lifting walking beam, a lifting walking tray roller carrier and the like which are selectively combined and arranged according to the requirement, and the steel coil transportation equipment 34 can be transported towards one of the left and right directions in the drawing.

Example 3

As shown in fig. 6 to 9, this example illustrates a hot rolled strip coiling and uncoiling system, which is different from embodiments 1 and 2 in that a coil stripper 4 is disposed on one side of an upper coiling machine 100, the center line of the upper coiling machine 100 in the width direction of the strip 5 corresponds to the center line of the strip 5 in the width direction of the strip in an upstream hot rolling line, and the center line of the coil stripper 4 in the width direction of the coil corresponds to the center line of the strip 5 in a downstream production line, so that the coil can be fed to the downstream production line for subsequent production. The coil stripping car 4 comprises a horizontal moving device, a coil supporting roller lifting device, a roller positioning device and the like.

Wherein, an uncoiling device 7 and a straightening machine 8 are arranged at the downstream of the coil stripping car 4 and are used for straightening the uncoiled plate strip, the uncoiling device 7 comprises a driving mechanism, a supporting structure 72, a swinging seat 74, an upper rotating roller 76, a lower rotating roller 77 and a swinging cutter head 75, the upper rotating roller 76, the lower rotating roller 77 and the swinging cutter head are arranged on the swinging seat 74; the swing seat 74 is mounted on the support structure 72 and can swing within a certain range relative to the support structure, and moves with the support structure 72 to approach or leave the steel coil 6 under the action of the driving mechanism, the upper roller 76 is used for contacting the steel coil 6 during uncoiling, and the lower roller 77 is used for pressing off the strip head of the steel coil 6.

The upper rotating roller 76 is rotatably mounted on the swing base 74 along its axis by a first rotating shaft, and the lower rotating roller 77 is rotatably mounted on the swing base 74 along its axis by a second rotating shaft. In this example, the upper rotating roller 76 and the lower rotating roller 77 are symmetrically disposed on both sides of the oscillating cutter head 75.

In one embodiment, the swing seat 74 is swingably mounted on the support structure 72, a limit structure for limiting the swing range of the swing seat 74 is disposed between the support structure 72 and the swing seat 74, the swing seat 74 is swingably mounted on the support structure 72, the angle of the swing seat 74 is not fixed, the swing seat can swing freely within a certain range, and when uncoiling, the steel coil can be attached adaptively, the steel coils with different diameters can be adapted, and the contact with the steel coil can be adjusted adaptively.

Specifically, a support shaft 73 is arranged on the support structure 72, and the swing seat 74 is sleeved on the support shaft 73 and can swing around the support shaft 73 within a limited range. In this example, the limiting structure includes two first limiting blocks 7a arranged at intervals along the circumferential direction of the supporting shaft 73 and a second limiting block 7b arranged on the swinging seat 74, and the second limiting block 7b is located between the two first limiting blocks 7a, so that the second limiting block 7b abuts against the first limiting blocks 7a when rotating to limit the swinging angle; in another embodiment, two first stoppers 7a are provided on the swing seat 74, a second stopper 7b is provided on the support shaft 73, and the second stopper 7b is located between the two first stoppers 7 a.

The drive mechanism at least drives the swing seat 74 down toward and away from the coil. In one embodiment, the driving mechanism comprises a rotary driving mechanism 71 and a swing driving mechanism 79, the unwinding device further comprises a supporting frame 78, the swing driving mechanism 79 and the supporting structure 72 are both mounted on the supporting frame 78, and the rotary driving mechanism 71 is connected with the supporting frame 78 and used for driving the supporting frame 78 to rotate; the support structure 72 is rotatably mounted on the support bracket 78, a first end of the support structure 72 is connected to the swing seat 74, specifically, the swing seat 74 is swingably mounted at a first end of the support structure 72 within a certain range, and a second end of the support structure 72 is connected to the swing driving mechanism 79.

With the above structure, the two driving mechanisms are used to realize the pressing-down, i.e. the angle adjustment, and the combination drives the uncoiling swinging cutter head 75 to swing up and down and left and right. Wherein the swing driving mechanism 79 is used for driving the supporting structure 72 to swing on the supporting frame 78 in the up-and-down direction so as to adjust the orientation of the swing seat 74; and the rotary driving mechanism 71 drives the whole device to be pressed down and lifted up through the supporting bracket 78.

In this example, the rotary driving mechanism 71 is a swing cylinder or a hydraulic cylinder, the swing driving mechanism 79 is a pushing cylinder, one end of the pushing cylinder is rotatably connected with the supporting frame 78, and the other end of the pushing cylinder is rotatably connected with the second end of the supporting structure 72; the support bracket 78 has two arms, one of which is hinged to the thrust cylinder and the other of which is pivotally connected to the middle of the support structure 72. When the rotary driving mechanism 71 is a swing cylinder, the center of the swing cylinder is the rotation center of the support frame 78, when the rotary driving mechanism 71 is a hydraulic cylinder, the hydraulic cylinder is hinged with the middle part of the support frame 78, and the bottom of the support frame 78 is a rotation fulcrum.

Because the head of the strip is attached to the steel coil 6, the upper rotary roller 76 and the swinging cutter head 75 are required to be tightly attached to the steel coil 6, the head of the steel coil 6 is pulled out for uncoiling, then the head 9 of the strip of the steel coil 6 is opened by utilizing the uncoiling swinging cutter head 75, the head of the strip is flattened on a roller table through the lower rotary roller 77, and the strip is conveyed to enter a downstream pinch roller and a downstream straightening machine, so that the strip is prevented from being scratched. In the process that the upper rotating roller 76 is tightly attached to the steel coil and slides relatively, the upper rotating roller 76 rotates, and the steel coil is prevented from being scratched. This structure can realize opening a book under the no perk condition of slab band head 9 of coil of strip 6, and is convenient for and coil of strip 6 laminating and avoid the fish tail through last commentaries on classics roller 76. And can realize the horizontal and vertical compound action through a plurality of actuating mechanisms; the swing seat 74 can swing within a certain range relative to the support structure 72, so as to be adaptive to contact with the steel coil 6 and be convenient for positioning.

The straightened steel plate can be sent to a downstream production line for hot bending, shearing or producing other structural steel. The straightening machine comprises two rotary swing supporting and winding rollers, front and rear pinch rollers of the straightening machine, the straightening machine (five rollers or seven rollers or 9 rollers), a motor of the straightening machine, a speed reducer, an oil cylinder transmission device, a heat insulation cover and the like. And the coil supporting roller supports the steel coil and rotates, so that the plate strip enters the pinch roller and the straightening machine to be straightened, and is conveyed to steel production line equipment for the hot forming structure. These structures are implemented by existing devices and will not be described in detail.

Example 4

As shown in fig. 12, this example provides an arrangement structure of a hot rolled strip coiling apparatus including the hot rolled strip coiling apparatus according to embodiment 1 or 2, in which an upper-floor coiler 100 is arranged after a four-high mill in a hot rolled medium plate production line or a steckel mill production line and before a cooling bed; or after cooling the bed; or after an underground coiler. Thus, not only can the conventional hot-rolled medium plate and coil can be produced, but also the structural steel hot-bent steel medium plate and coil can be produced.

Example 5

As shown in fig. 13, this example provides an arrangement structure of a hot rolled strip coiling apparatus including the hot rolled strip coiling apparatus according to embodiment 1 or 2, and the above-floor coiler 100 is arranged after the finishing mill of the hot continuous rolling line. Thus, not only can the conventional hot rolled strip coil be produced, but also the structural steel hot bending type strip coil can be produced.

Example 6

As shown in fig. 14, this example provides an arrangement structure of a hot rolled strip coiling apparatus, including the hot rolled strip coiling apparatus of embodiment 1 or 2, wherein the above-ground coiler 100 is arranged behind a roughing mill of a hot rolled medium plate production line or a steckel mill production line, and is capable of being pushed and pulled integrally to a transmission side to enter and exit the production line, and a supplementary roller table is arranged therein, and/or an inclined roller table is laid down flat and connected with a conveying roller table, and is used for producing structural steel hot bent steel high temperature strips and/or producing conventional hot rolled strips. When the whole is pulled out of the production line, the conventional hot rolled plate is produced; when entering the production line, the steel hot-bending steel high-temperature plate strip can be used for producing structural steel hot-bending steel high-temperature plate strips; can be integrally pushed and pulled in and out of the production line without influencing the conventional production.

In the above-described embodiments 4 to 6, the above-described upper-floor coiler 100 may be used alone, or the upper-floor coiler 100 and the below-floor coiler 300 may be provided simultaneously.

The invention meets the requirements of production and processing equipment for large hot-bent section steel and the like for structural steel, the thickness of the strip can reach 5-50 mm, the width is 600-5000 mm, the temperature is about 900 ℃, the center distance of the coiled steel coil is about +1000mm above the ground elevation, and the strip directly enters the production and processing of hot-bent section steel such as high-temperature shearing, forming and the like; the invention can be used for the new construction of hot rolled strip equipment or the technical transformation of old production line equipment, and can be used for high-temperature ultra-thick ultra-wide strip or hot-receiving strip shearing production line equipment required by the cross production of products such as conventional hot rolled strip coils, large hot bent section steel and the like. The 100 zones of the aboveground coiler can improve the ground elevation by about 2400mm, and the steel coil transportation and lifting equipment, the cooling ditch depth, the foundation construction and the construction cost of auxiliary facilities of a factory are reduced.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (13)

1. A hot-rolled plate strip coiling device is characterized in that: the plate strip coiling machine comprises a conveying roller way for conveying hot-rolled plate strips and an aboveground coiling machine for coiling the plate strips, wherein the coiling central line of the aboveground coiling machine is above the ground elevation, and a plate strip conveying mechanism is arranged between the conveying roller way and the aboveground coiling machine and used for conveying the plate strips to the aboveground coiling machine from the conveying roller way.

2. The hot rolled strip coiling apparatus as claimed in claim 1, wherein: the plate belt conveying mechanism is obliquely arranged, and one end connected with the conveying roller way is lower than one end connected with the aboveground coiling machine.

3. The hot rolled strip coiling apparatus as claimed in claim 2, wherein: the plate strip conveying mechanism comprises a guide pinch roll, an inclined roller way and a bending pinch roll; the pinch roll is arranged between the conveying roller way and the inclined roller way and is used for redirecting pinch plate strips and plate strips; the bending pinch roll is arranged between the outlet of the inclined roller way and the inlet of the aboveground coiling machine and used for guiding the plate strip to change direction and enter the aboveground coiling machine.

4. A hot rolled strip coiling apparatus as claimed in claim 3, characterised in that: the guide pinch roll comprises a first swing press roll, a first upper movable pinch roll and a first lower pinch roll, and the center line of the first upper movable pinch roll and the center line of the first lower pinch roll are staggered in the vertical direction.

5. A hot rolled strip coiling apparatus as claimed in claim 3, characterised in that: the bending pinch roll comprises a second swinging press roll, a second upper moving pinch roll and a second lower pinch roll, and the center line of the second upper moving pinch roll and the center line of the second lower pinch roll are staggered in the vertical direction.

6. The hot rolled strip coiling apparatus as claimed in claim 1, wherein: the aboveground coiling machine comprises a frame, a collapsible winding drum arranged on the frame, auxiliary winding rollers and a transmission device thereof, wherein the number of the auxiliary winding rollers is three or four, and the auxiliary winding rollers are circumferentially arranged; or the aboveground coiling machine is a reel-free coiling machine and comprises a rack, three or four auxiliary coiling rollers arranged on the rack and a transmission device of the auxiliary coiling rollers, wherein the number of the auxiliary coiling rollers is three or four, and the auxiliary coiling rollers are circumferentially arranged.

7. The hot rolled strip coiling apparatus as claimed in claim 6, wherein: when the number of the auxiliary winding rollers is three, the included angle of the adjacent auxiliary winding rollers along the circumferential direction is 100-140 degrees; when the number of the wrapper rollers is four, the included angle of the adjacent wrapper rollers along the circumferential direction is 70-120 degrees.

8. A hot rolled strip coiling apparatus as claimed in claim 3, characterised in that: the inclined angle of the inclined roller way relative to the horizontal direction is less than 30 degrees.

9. The hot-rolled strip coiling apparatus as claimed in any one of claims 3 to 5, wherein: the hot-rolled strip coiling device further comprises an underground coiling machine, the elevation of the central line of a winding drum of the underground coiling machine is lower than the elevation of the ground, and a swinging door capable of swinging up and down is further arranged between the pinch roll and the inclined roller way and used for guiding the strip to enter the inclined roller way or the underground coiling machine.

10. The utility model provides a hot rolling slab band is batched and is opened a book system which characterized in that: the hot-rolled strip coiling device comprises the hot-rolled strip coiling device as claimed in any one of claims 1 to 9, wherein a coil stripping car is arranged on one side of the above-ground coiling machine, the center line of the above-ground coiling machine in the width direction of the strip corresponds to the strip center line of an upstream hot rolling line, and the center line of the coil stripping car in the width direction of the coil corresponds to the strip center line of a downstream production line.

11. The hot rolled strip coiling and uncoiling system as claimed in claim 10, wherein: the method is characterized in that: an uncoiling device and a straightening machine are arranged at the downstream of the coil stripping car, and the uncoiling device comprises a driving mechanism, a supporting structure, a swinging seat, an upper rotating roller, a lower rotating roller and a swinging cutter head, wherein the upper rotating roller and the lower rotating roller are arranged on the swinging seat; the swing seat is installed on bearing structure to can swing at the within range appointed for bearing structure, the swing seat is close to or leaves the coil of strip along with bearing structure motion under the actuating mechanism effect, go up the rotor and be used for opening a book the time with the coil of strip contact, the lower rotor is used for pressing off the slab band head of coil of strip.

12. An arrangement structure of a hot-rolled strip coiling device is characterized in that: the hot-rolled strip coiling apparatus comprising the hot-rolled strip coiling apparatus as claimed in any one of claims 1 to 9, wherein the above-ground coiler is arranged after a four-high mill of a hot-rolled medium plate production line or a steckel mill production line and before a cooling bed; or after cooling the bed; or after an underground coiler;

or the above-ground coiler is arranged after the finishing mill of the hot continuous rolling line or after the underground coiler.

13. An arrangement structure of a hot-rolled strip coiling device is characterized in that: comprising the hot-rolled strip coiling apparatus as claimed in any one of claims 1 to 9, said above-ground coiler being arranged after the roughing mill of the hot-rolled medium plate or steckel mill line and being capable of being pushed and pulled integrally into and out of the line towards the drive side.

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