Telescopic lifting platform device for mounting furnace shell and furnace lining of industrial furnace

Abstract

The utility model relates to a telescopic lifting platform device for installing a furnace shell and a furnace lining of an industrial furnace, and belongs to the technical field of maintenance equipment in a blast furnace. Comprising a body (2) and a lifting device, the body (2) comprises a center cylinder (24), an annular beam (22), supporting legs (21) and a bed board (6), the supporting legs (21) are telescopic rods and are arranged on the center cylinder (24) at intervals, the lower ends of the supporting legs (21) are connected with the upper end of the annular beam (22), and the bed board (6) is laid on the upper end faces of the supporting legs (21); and the lifting device is connected with the annular beam (22). The top frame platform can be used for installing the partition platform to serve as a lifting point of the lifting device, and the body (2) is installed. And the body (2) stretches, retracts, ascends and descends along with the mounting diameter and height of the furnace shell and the furnace lining so as to meet various operation platform requirements of the furnace shell and the furnace lining. The problems that the workload is large, the difficulty is high, the stability is poor, and the continuous installation requirement cannot be met when a scaffold is directly erected in a narrow furnace in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to a telescopic lifting platform device for installing a furnace shell and a furnace lining of an industrial furnace, and belongs to the technical field of maintenance equipment in a blast furnace. Background Art

[0002] The main body of an industrial furnace is mainly composed of a furnace shell and a furnace lining. Large vertical furnaces are generally 20 to 40 meters in height and 10 to 13 meters in diameter. The installation process is to install the main body furnace shell and furnace lining after the surrounding frame platforms are completed. Therefore, the main body installation is carried out in a narrow and confined space, and the workload is large, the difficulty is high, and the quality requirements are high. There is a frame working platform outside the furnace shell, but no working platform inside the furnace shell, so a scaffolding working platform inside the furnace needs to be set up. Because the scaffolding working platform has poor load-bearing capacity, it cannot temporarily place spare parts during installation; it is also poorly stable; and it cannot meet the requirements of continuous installation. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the existing scaffolding directly set up in a narrow furnace has a large workload, high difficulty, poor stability and cannot meet the needs of continuous installation.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a retractable lifting platform device for installing a furnace shell and a furnace lining of an industrial furnace, comprising a main body and a lifting device, the main body comprising a central tube, an annular beam, legs and a floor plate, the legs are telescopic rod structures, and are arranged on the outer wall of the central tube at intervals along the circumference, the lower end surfaces of the legs are connected to the upper ends of the annular beams, and the floor plates are laid on the upper end surfaces of the legs; the lifting device is connected to the annular beam, so that the lifting device can drive the main body to move up and down.

[0005] Wherein, the lifting device in the above device is a winch, and the protruding end of the wire rope of the winch is connected to the annular beam.

[0006] Furthermore, the above device also includes a pulley, and the extended end of the steel wire rope passes around the pulley and is connected to the annular beam.

[0007] Furthermore, in the above device, at least two lifting ears are arranged on the annular beam, and the wire rope is connected to the lifting ears.

[0008] Among them, the above-mentioned device also includes an inclined support rod, which is arranged obliquely, and the inclined lower end of the inclined support rod is connected to the lower outer wall of the central tube, and the other end is connected to the lower end of the support leg.

[0009] Among them, the above-mentioned device also includes a locking piece, and the support leg includes a first telescopic tube, a second telescopic tube and a third telescopic rod, the second telescopic tube is inserted into the first telescopic tube, the third telescopic rod is inserted into the second telescopic tube, and the first telescopic tube and the second telescopic tube, and the second telescopic tube and the third telescopic rod can be fixed by a locking piece.

[0010] Furthermore, in the above device, rollers are provided on the inner lower walls of the penetration ends of the first telescopic tube and the second telescopic tube, and on the outer upper walls of the penetration ends of the second telescopic tube and the third telescopic rod.

[0011] Wherein, a reinforcement ring is arranged on the inner wall of the central tube in the above device.

[0012] Furthermore, in the above device, the inclined upper end of the inclined support rod is connected to the lower end side wall of the first telescopic tube.

[0013] Furthermore, in the above device, there are two winches which are arranged at intervals, there are four lifting ears which are symmetrically arranged on both sides of the annular beam and connected to the steel wire ropes of the winches on the corresponding sides.

[0014] The beneficial effects of the utility model are as follows: the device has a simple structure and is easy to use. The device can utilize the top frame platform to install a partition platform as a pulley and tackle assembly hanging point to install a retractable lifting platform device. The platform can be extended and lifted with the installation diameter and height of the furnace shell and furnace lining to meet the various work platform requirements for the construction of the furnace lining inside the furnace after the furnace shell and furnace lining, especially the furnace shell, are installed. The retractable lifting platform device has been successfully used in the installation of large vertical furnace bodies such as Panzhihua blast furnace and dry quenching coke oven, and has met the requirements of efficient, fast and low-cost installation. The device has a promotional role and reference significance for the installation of similar domestic industrial vertical furnace bodies by shortening the construction period, reducing costs, and ensuring safety and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the blast furnace body shell, cooling wall and furnace lining of the utility model.

[0016] Figure 2 For this utility model Figure 1 A magnified schematic diagram of the structure at point I in the middle.

[0017] Figure 3 It is a structural schematic diagram of the main body of the utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the utility model after the supporting legs are folded.

[0019] Figure 5 It is a schematic diagram of the structure of the utility model after the legs are unfolded.

[0020] Figure 6 For this utility model Figure 4 Another perspective structural diagram of .

[0021] Figure 7 For this utility model Figure 5 Another perspective structural diagram of .

[0022] Figure 8It is a structural schematic diagram of the cross section of the lifting ear of the utility model.

[0023] Fig. 9 This is a schematic diagram of the installation structure of the lifting lug of the utility model.

[0024] Figure numerals: 1 is the furnace body, 11 is the manhole, 2 is the main body, 21 is the support leg, 22 is the ring beam, 23 is the lifting ear, 24 is the center tube, 25 is the reinforcement ring, 26 is the first telescopic tube, 27 is the second telescopic tube, 28 is the third telescopic rod, 29 is the inclined support rod, 3 is the wire rope, 4 is the pulley, 5 is the winch, and 6 is the deck. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 9 As shown, the telescopic lifting platform device for installing the furnace shell and lining of an industrial furnace of the utility model comprises a main body 2 and a lifting device, wherein the main body 2 comprises a central tube 24, an annular beam 22, legs 21 and a deck 6, wherein the legs 21 are telescopic rod structures and are arranged on the outer wall of the central tube 24 at intervals along the circumference, and the lower end faces of the legs 21 are connected to the upper ends of the annular beam 22 correspondingly, and the deck 6 is laid on the upper end faces of the legs 21; the lifting device is connected to the annular beam 22, so that the lifting device can drive the main body 2 to move up and down. It can be understood by those skilled in the art that the device realizes the height adjustment of the main body 2 through the lifting device, and the length of the legs 21 is adjustable, that is, the radial size of the main body 2 is adjustable, which can meet the installation needs of the furnace body 1 in different positions. Specifically, the main body 2 includes a central tube 24, an annular beam 22, support legs 21 and a floor board 6. The support legs 21 are arranged on the outer wall of the central tube 24 at intervals along the circumference. The number of the support legs 21 and the diameter of the central tube 24 can be appropriately increased or decreased according to the actual inner diameter of the furnace body 1. The lower end surface of the support leg 21 is connected to the upper end of the annular beam 22, and the floor board 6 is directly laid on the upper end surface of the support leg 21 to form an operating workbench; and the lifting device is connected to the annular beam 22, so that the lifting device can drive the main body 2 to move up and down, thereby realizing the height adjustment of the main body 2.

[0027] Preferably, the lifting device in the above device is a winch 5, and the extended end of the wire rope 3 of the winch 5 is connected to the annular beam 22. Those skilled in the art can understand that the preferred lifting device of the device is a winch 5, the number of winches 5 is determined according to the hoisting point, and the extended end of the wire rope 3 of the winch 5 is actually connected to the annular beam 22, and the lifting of the body 2 can be achieved by starting the winch 5.

[0028] Preferably, the device further comprises a pulley 4, and the extended end of the steel wire rope 3 passes over the pulley 4 and is connected to the annular beam 22. It can be understood by those skilled in the art that, in order to facilitate the hoisting of the winch 5, the device is preferably provided with a pulley 4. Specifically, the pulley 4 can be arranged at the manhole 11, so that the winch 5 is horizontally installed at the manhole 11, and the steel wire rope 3 of the winch 5 is arranged at a right angle through the pulley 4, and the steel wire rope 3 passes through the pulley 4 and is connected to the annular beam 22.

[0029] Preferably, the annular beam 22 in the above device is provided with at least two lifting ears 23, and the wire rope 3 is connected to the lifting ears 23. It can be understood by those skilled in the art that the annular beam 22 of the present device is preferably provided with at least two lifting ears 23, which are symmetrically arranged and the wire rope 3 is connected to the lifting ears 23.

[0030] Preferably, the device further comprises an oblique support rod 29, which is arranged obliquely, and the oblique lower end is connected to the lower outer wall of the center tube 24, and the other end is connected to the lower end of the leg 21. It can be understood by those skilled in the art that, in order to ensure the structural strength, the device is actually preferably arranged obliquely below the leg 21, and the oblique lower end of the oblique support rod 29 is connected to the lower outer wall of the center tube 24, and the other end is connected to the lower end of the leg 21.

[0031] Preferably, the above-mentioned device also includes a locking piece 7, and the support leg 21 includes a first telescopic tube 26, a second telescopic tube 27 and a third telescopic rod 28, the second telescopic tube 27 is inserted into the first telescopic tube 26, the third telescopic rod 28 is inserted into the second telescopic tube 27, and the first telescopic tube 26 and the second telescopic tube 27, and the second telescopic tube 27 and the third telescopic rod 28 can be fixed by the locking piece 7. Those skilled in the art can understand that the specific structure of the preferred leg 21 of the device includes a first telescopic tube 26, a second telescopic tube 27 and a third telescopic rod 28, and the first telescopic tube 26, the second telescopic tube 27 and the third telescopic rod 28 can be preferably a rectangular tube structure, and the second telescopic tube 27 is actually inserted into the first telescopic tube 26, so that the second telescopic tube 27 is slidably connected to the first telescopic tube 26, and the third telescopic rod 28 is inserted into the second telescopic tube 27, so that the third telescopic rod 28 is slidably connected to the second telescopic tube 27, and the first telescopic tube 26 and the second telescopic tube 27, and the second telescopic tube 27 and the third telescopic rod 28 can be fixed by a locking member 7. The locking member 7 can be a latch or a locking screw.

[0032] Preferably, in the above device, rollers are provided on the inner lower wall of the penetration end of the first telescopic tube 26 and the second telescopic tube 27, and on the outer upper wall of the penetration end of the second telescopic tube 27 and the third telescopic rod 28. It can be understood by those skilled in the art that, since the leg 21 is the main supporting member and has a large weight, in order to facilitate the quick adjustment of the length of the leg 21, the present device adopts a sliding connection method, specifically, rollers are provided on the inner lower wall of the penetration end of the first telescopic tube 26 and the second telescopic tube 27, and the penetration end here refers to the first telescopic tube 26 for the second telescopic tube 27 to penetrate and the second telescopic tube 27 for the third telescopic rod 28 to penetrate. Rollers are provided on the outer upper wall of the penetration end of the second telescopic tube 27 and the third telescopic rod 28, and the penetration end here refers to the end of the second telescopic tube 27 penetrating the first telescopic tube 26 and the end of the third telescopic rod 28 penetrating the second telescopic tube 27.

[0033] Preferably, a reinforcing ring 25 is provided on the inner wall of the central tube 24 in the above device. It can be understood by those skilled in the art that, since the legs 21 are directly connected to the central tube 24 and are actually fixed by welding and bolts, in order to ensure the structural strength of the central tube 24, the device actually preferably provides a reinforcing ring 25 on the inner wall of the central tube 24, which can be preferably fixed by welding.

[0034] Preferably, the inclined upper end of the oblique support rod 29 in the above device is connected to the lower end side wall of the first telescopic tube 26. Those skilled in the art can understand that the present device further defines the position and connection relationship of the oblique support rod 29. Since the support leg 21 is a telescopic rod structure, in order to avoid affecting the length adjustment of the support leg 21, the present device actually preferably connects the inclined upper end of the oblique support rod 29 to the lower end side wall of the first telescopic tube 26.

[0035] Preferably, in the above device, there are two hoists 5 and they are arranged at intervals, and there are four lifting ears 23 and they are symmetrically arranged on both sides of the annular beam 22, and they are connected to the steel wire rope 3 of the hoist 5 on the corresponding side. It can be understood by those skilled in the art that the present device is just a preferred number of hoists 5 and lifting ears 23, specifically, there are two hoists 5 and they are arranged at intervals, arranged at the manholes 11 on both sides of the furnace body 1, and preferably there are four lifting ears 23 and they are symmetrically arranged on both sides of the annular beam 22, and they are connected to the steel wire rope 3 of the hoist 5 on the corresponding side, that is, one hoist 5 is connected to two lifting ears 23.

Claims

1. A retractable lifting platform device for installing the shell and lining of an industrial furnace, characterized in that: The invention comprises a main body (2) and a lifting device, wherein the main body (2) comprises a central tube (24), an annular beam (22), legs (21) and a floor board (6), wherein the legs (21) are telescopic rod structures and are arranged on the outer wall of the central tube (24) at intervals along the circumference, the lower end surfaces of the legs (21) are correspondingly connected to the upper ends of the annular beam (22), and the floor board (6) is laid on the upper end surfaces of the legs (21); the lifting device is connected to the annular beam (22), so that the lifting device can drive the main body (2) to move up and down.

2. The retractable lifting platform device for installing the shell and lining of an industrial furnace according to claim 1, characterized in that: The lifting device is a winch (5), and the protruding end of the steel wire rope (3) of the winch (5) is connected to the annular beam (22).

3. The retractable lifting platform device for installing the shell and lining of an industrial furnace according to claim 2, characterized in that: It also comprises a pulley (4), and the protruding end of the steel wire rope (3) passes around the pulley (4) and is connected to the annular beam (22).

4. The retractable lifting platform device for installing the shell and lining of an industrial furnace as claimed in claim 2, characterized in that: At least two lifting ears (23) are arranged on the annular beam (22), and the steel wire rope (3) is connected to the lifting ears (23).

5. The retractable lifting platform device for installing the shell and lining of an industrial furnace according to claim 1, characterized in that: It also includes an inclined support rod (29), which is arranged obliquely, and the inclined lower end is connected to the lower outer wall of the central tube (24), and the other end is connected to the lower end of the support leg (21).

6. The retractable lifting platform device for installing the shell and lining of an industrial furnace according to any one of claims 1 to 5, characterized in that: The invention also comprises a locking member (7), wherein the supporting leg (21) comprises a first telescopic tube (26), a second telescopic tube (27) and a third telescopic rod (28), wherein the second telescopic tube (27) is inserted into the first telescopic tube (26), and the third telescopic rod (28) is inserted into the second telescopic tube (27), and the first telescopic tube (26) and the second telescopic tube (27), and the second telescopic tube (27) and the third telescopic rod (28) can be fixed by the locking member (7).

7. The retractable lifting platform device for installing the shell and lining of an industrial furnace according to claim 6, characterized in that: The inner lower walls of the penetration ends of the first telescopic tube (26) and the second telescopic tube (27), and the outer upper walls of the penetration ends of the second telescopic tube (27) and the third telescopic rod (28) are all provided with rollers.

8. The retractable lifting platform device for installing the shell and lining of an industrial furnace according to claim 1, characterized in that: A reinforcement ring (25) is provided on the inner wall of the central tube (24).

9. The retractable lifting platform device for installing the shell and lining of an industrial furnace according to claim 5, characterized in that: The inclined upper end of the inclined support rod (29) is connected to the lower end side wall of the first telescopic tube (26).

10. The retractable lifting platform device for installing the shell and lining of an industrial furnace according to claim 4, characterized in that: There are two hoists (5) arranged at intervals, and there are four lifting ears (23) symmetrically arranged on both sides of the annular beam (22) and connected to the steel wire rope (3) of the hoist (5) on the corresponding side.

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