A crane for installing a distillation tower

Abstract

The present invention provides a crane for installing a distillation tower, which relates to the field of building installation. The crane for installing a distillation tower comprises a crane body, wherein the crane body is provided with a boom, wherein the boom is fixedly provided with a hanging wheel at one end away from the crane body, wherein a hook is provided at the outer lower end of the hanging wheel, wherein a balancing assembly is provided at the outer lower end of the hook, wherein the balancing assembly can balance a tower ring, wherein a clamping assembly is placed on the outer fixed sleeve of the tower ring, wherein the clamping assembly includes a first hoop, a second hoop, a fastening mechanism, a limiting mechanism and a connecting mechanism, wherein the fastening mechanism can fasten the first hoop and the second hoop, and the limiting mechanism can block and limit the tower ring. The present invention can make the cylindrical tower ring be hoisted and moved well through the setting of the clamping assembly, and at the same time, when the tower ring is hoisted and stacked, the connecting surfaces between the tower rings are not blocked, and can be well welded and connected.

Description

Technical Field

[0001] The invention relates to the technical field of building installation, in particular to a crane for installing a distillation tower. Background Art

[0002] The distillation tower is an important equipment used to separate mixed liquids in chemical production. The main function of the distillation tower is to separate mixed liquids. Its working principle is based on the different boiling points of the components in the mixture. It uses the principle that different liquids have different volatilities (boiling points) under different conditions, such as different temperatures, to separate liquids, thereby achieving a purification effect. The distillation tower is mainly divided into plate towers and film towers;

[0003] There are two solutions for the installation of existing distillation towers. One is to produce, weld and process them at the production and processing site, and then use super-large cranes to cooperate to achieve overall lifting and installation. However, this operation method requires super-large vehicles to transport and move the overall welded distillation tower, which is inconvenient during transportation. At the same time, super-large cranes are also required for lifting during the lifting and installation process. It also requires multiple super-large cranes to cooperate to ensure the safety and stability of the lifting process, which is relatively inconvenient during the lifting process.

[0004] Another method is to transport the distillation towers produced layer by layer at the production and processing site, and then use ordinary cranes to lift the distillation towers layer by layer, and install scaffolding outside the distillation towers. In this way, when the crane lifts each layer of the distillation tower, the staff can weld and connect each layer of the distillation tower on the scaffolding, which avoids the inconvenience of transporting the distillation tower as a whole and does not require the entry of super-large cranes;

[0005] During the hoisting process of each layer of the distillation tower, it is necessary to ensure that there is no obstruction at the connection between the upper and lower layers, so as to facilitate the workers to weld. However, because each layer of the distillation tower is cylindrical, the crane cannot hoist each layer of the distillation tower well and ensure that there is no obstruction on the lower surface of the distillation tower layer during the hoisting process;

[0006] And when docking the upper and lower distillation towers, it is necessary to ensure that they are aligned without misalignment to prevent the upper distillation tower from being unstable and falling, and to avoid the situation where welding cannot occur due to misalignment. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a crane for installing a distillation tower.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A crane for installing a distillation tower, comprising a crane body and a tower ring, the crane body is provided with a boom, the boom is fixedly provided with a hanging wheel at one end away from the crane body, the lower end of the outer part of the hanging wheel is provided with a hook, the lower end of the outer part of the hook is provided with a balancing component, and the balancing component can balance the tower ring;

[0009] The outer fixing sleeve of the tower ring is provided with a clamping assembly, and the interior of the clamping assembly includes a first hoop, a second hoop, a fastening mechanism, a limiting mechanism and a connecting mechanism. The fastening mechanism can fasten the first hoop and the second hoop, the limiting mechanism can block and limit the tower ring, and the connecting mechanism connects the tower ring with the balancing assembly.

[0010] Through the above technical solution, the first hoop and the second hoop wrap around the tower ring, and the first hoop and the second hoop are tightly fixed to the outside of the tower ring through the fastening mechanism, and then connected with the balance assembly through the connecting mechanism. Finally, the crane body drives the boom to extend, and the lifting wheel is lowered to connect the hook with the balance assembly, so that the crane can lift the tower ring. During the movement and placement of the tower ring, it will be docked with the fixed and welded tower ring through the limiting mechanism.

[0011] Preferably, the balancing component includes a hook plate hooked on the outside of the hook, a hook groove is opened in the middle of the hook plate, the hook is connected to the hook plate through the hook groove, rope holes are opened on both sides of the hook plate, the rope holes are connected to the inside of the rope holes, and the end of the rope away from the hook plate is fixed with a hook.

[0012] Through the above technical solution, the lengths of the lifting ropes on both sides of the hook plate will remain equal, so that when the tower ring is lifted, the tower ring will not tilt due to the unequal lengths of the lifting ropes on both sides. At the same time, due to the setting of the hook plate, the three force-bearing positions of the hook plate are the upper end of the hook groove and the lower ends of the rope holes on both sides. In this way, after the hook plate is deformed due to long-term force, the force position of the hook plate can be changed by flipping the hook plate, thereby extending the service life of the hook plate.

[0013] Preferably, the first hoop and the second hoop are both semicircular, the first hoop and the second hoop are arranged in close proximity, the tower ring is located inside the first hoop and the second hoop, the inner diameter surfaces of the first hoop and the second hoop are fixedly connected with washers, the washers are made of rubber, first screw holes are opened at both ends of the first hoop, second screw holes are opened at both ends of the second hoop, and a fixing sleeve is placed on the outside of the connection between the first hoop and the second hoop.

[0014] Through the above technical solution, the first hoop and the second hoop tighten the tower ring to ensure that the tower ring will not fall during the lifting process, and the setting of the gasket can increase the friction between the first hoop, the second hoop and the tower ring.

[0015] Preferably, the fastening mechanism includes a fixing sleeve which is placed outside the first hoop and the second hoop, a ring groove is opened in the middle part of the fixing sleeve, the first hoop and the second hoop are both located inside the ring groove, a first screw hole is opened on one side of the fixing sleeve, a fixing nut is fixedly provided on the surface of the first screw hole, a screw rod is arranged inside the fixing sleeve, and the screw rod passes through the first hoop and enters the fixing nut.

[0016] Through the above technical solution, the first hoop and the second hoop are connected by the fixing sleeve, which ensures that during the hoisting process, the first hoop and the second hoop will not be easily loosened, and there is no possibility of the tower ring falling.

[0017] Preferably, two retaining rings are sleeved on the outside of the screw, and the retaining rings are respectively located on both sides of the first hoop, and the screw is fixedly connected with a knob at the end away from the fixing nut, and the knob is fixedly provided with a clamping block on the surface of the side away from the screw, and the fixing sleeve is fixedly provided with a fixing plate on the surface of the side close to the knob, and a rotating plate is sleeved on the outside of the fixing plate, and the rotating plate rotates around the fixing plate, and the rotating plate is located inside the clamping block.

[0018] Through the above technical solution, when the rotating knob drives the screw to rotate, the first hoop will be driven to move through the retaining ring, thereby achieving the loosening and tightening of the first hoop; when the retaining ring drives the first hoop to move toward the fixed nut, the first hoop is loosened and opened, so that the tower ring can be taken out or put on; when the retaining ring drives the first hoop to move away from the fixed nut, the first hoop is tightened, thereby achieving the effect of tightening the tower ring; after the tower ring is tightened, the rotating plate can be turned around the fixed rod to rotate in the direction of the knob until the rotating plate is rotated into the block, thereby locking and restricting the knob to prevent the screw from rotating.

[0019] Preferably, a second screw hole is opened inside the fixing sleeve at a side away from the first screw hole, a bolt is arranged inside the second screw hole, and the bolt passes through the second hoop and enters into the second screw hole.

[0020] Through the above technical solution, the second hoop is fixed inside the fixing sleeve by bolts, so that the second hoop is fixed and the first hoop can be adjusted, which makes it more convenient to tighten the tower ring.

[0021] Preferably, the limiting mechanism includes a fixing rod fixedly arranged outside the first hoop, a baffle is arranged at the lower end of the outside of the first hoop, the baffle is in a circular ring shape, a plurality of lifting plates are arranged at the upper end of the outside of the baffle, a sliding groove is opened inside the lifting plates, and the fixing rod is located inside the sliding groove.

[0022] Through the above technical solution, when the tower ring is hoisted, the baffle will fall through the slide under the action of gravity, so that the hoisted tower ring will be blocked by the baffle when it moves above the fixed and welded tower ring, so that the effect of automatic alignment can be achieved, and the hoisted tower ring will not swing in the air and cannot be aligned.

[0023] Preferably, the connecting mechanism includes two limiting rings arranged on the outside of the fixed sleeve, a rotating block is arranged on the outside of the fixed sleeve, the limiting rings are respectively located at both ends of the rotating block, the rotating block can rotate around the fixed sleeve, a connecting ring is arranged inside the rotating block, the connecting ring can rotate inside the rotating block, and the connecting ring is connected to the hook.

[0024] Through the above technical solution, during the hoisting process of the tower ring, the cooperation between the rotating block and the connecting ring can make the force on the fixed sleeve more uniform, and will not be damaged due to uneven force during the hoisting process. The setting of the limit ring can prevent the rotating block from moving easily, so as to ensure the stability of the hoisting process.

[0025] Beneficial Effects

[0026] The present invention provides a crane for installing a distillation tower. It has the following beneficial effects:

[0027] 1. The present invention can make the cylindrical tower ring be hoisted and moved well by setting the clamping assembly. At the same time, when the tower rings are hoisted and stacked, the connecting surfaces between the tower rings are not blocked and can be well welded;

[0028] 2. The setting of the limiting mechanism in the present invention can make the tower ring be blocked by the welded tower ring during the lifting and moving process, so that the difficulty of aligning and stacking the tower ring is greatly reduced, which is more convenient for the crane driver to operate;

[0029] 3. At the same time, the arrangement of the balancing assembly in the present invention can prevent the tower ring from tilting easily during the hoisting process, so that it is not easy to fall during the hoisting process, which is safer. The force applied to the hook plate can make the hook plate continue to be used after deformation, thereby increasing the service life of the hook plate;

[0030] 4. Finally, the setting of the connection mechanism in the present invention can make the fixing sleeve be more evenly stressed during the hoisting process, and will not be easily deformed, nor will it be stuck due to deformation and unable to be disassembled and installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Fig. 1 is a schematic diagram of the overall structure of the present invention;

[0032] FIG2 is a schematic diagram of the tower ring, the balancing assembly and the clamping assembly in the present invention from a first angle;

[0033] FIG3 is a schematic diagram of the structure of the tower ring, the balancing assembly and the clamping assembly in the present invention from a second angle;

[0034] FIG4 is a schematic diagram of the structures of the tower ring balancing assembly, the limiting mechanism and the connecting mechanism in the present invention;

[0035] FIG5 is an enlarged view of the structure at point A in FIG4;

[0036] FIG6 is a schematic diagram of the structure of the first hoop, the second hoop and the limiting mechanism in the present invention;

[0037] FIG7 is a schematic diagram of the structure of the fixing sleeve and the like in the first angle of the present invention;

[0038] FIG8 is a schematic diagram of the structure of the fixing sleeve and the like in the present invention from a second angle;

[0039] FIG9 is a half-section schematic diagram of the structure of the fixed sleeve, etc. in the present invention;

[0040] 10 is a schematic cross-sectional view of the structure of the second hoop and the fixing sleeve in the present invention;

[0041] 11 is a schematic cross-sectional view of the first hoop and the fixing sleeve in the present invention;

[0042] FIG. 12 is a schematic diagram of the first hoop and the second hoop in the present invention.

[0043] Among them, 100, crane body; 101, boom; 102, lifting wheel; 103, hook; 200, tower ring; 300, baffle; 301, lifting plate; 302, slide; 400, swivel block; 401, connecting ring; 500, first hoop; 501, second hoop; 502, fixing rod; 503, washer; 600, lifting rope; 601, hook; 602, hook plate; 603, rope hole; 604, hook groove; 700, fixing sleeve; 701, limiting ring; 702, knob; 703, block; 704, swivel plate; 705, fixing plate; 706, ring groove; 707, first screw hole; 708, fixing nut; 709, second screw hole; 710, retaining ring; 711, screw; 712, bolt. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0045] As shown in FIGS. 1 to 12 , an embodiment of the present invention provides a crane for installing a distillation tower, comprising a crane body 100 and a tower ring 200. The crane body 100 is provided with a boom 101. The boom 101 is fixedly provided with a hanging wheel 102 at one end away from the crane body 100. A hook 103 is provided at the lower end of the outer portion of the hanging wheel 102. A balancing component is provided at the lower end of the outer portion of the hook 103. The balancing component can balance the tower ring 200, so that the tower ring 200 can maintain balance during the process of hoisting and moving, and will not easily tilt.

[0046] The outer fixing sleeve 700 of the tower ring 200 is provided with a tightening assembly, which can tighten the tower ring 200 so that the tower ring 200 will not fall during the hoisting process. The tightening assembly includes a first hoop 500, a second hoop 501, a tightening mechanism, a limiting mechanism and a connecting mechanism. The tightening mechanism can tighten the first hoop 500 and the second hoop 501 so that the first hoop 500 and the second hoop 501 are tightly fitted on the outer surface of the tower ring 200. The limiting mechanism can block and limit the tower ring 200 so that the tower ring 200 can be better aligned during the hoisting process and is not easily misaligned. The connecting mechanism connects the tower ring 200 to the balancing assembly.

[0047] As shown in FIGS. 1 to 4 , the balance component includes a hook plate 602 hooked on the outside of the hook 103, a hook groove 604 is provided in the middle of the hook plate 602, the hook 103 is connected to the hook plate 602 through the hook groove 604, rope holes 603 are provided on both sides of the hook plate 602, the rope holes 603 are connected to the insides of the rope holes 603, and hooks 601 are fixedly provided at the ends of the ropes 600 away from the hook plate 602. When the hook plate 602 is performing lifting work, the upper end of the hook groove 604 and the bottom ends of the rope holes 603 on both sides are subjected to the greatest force and are most likely to deform. When it is deformed, the hook plate 602 can be flipped over to flip its upper and lower positions, so that the service life of the hook plate 602 can be effectively extended.

[0048] As shown in Figures 1 to 4, 6, and 10 to 12, the first hoop 500 and the second hoop 501 are both semicircular in shape, and the first hoop 500 and the second hoop 501 are arranged in close proximity so that the first hoop 500 and the second hoop 501 can form a complete circular ring, thereby surrounding and wrapping the tower ring 200. The tower ring 200 is located inside the first hoop 500 and the second hoop 501. The inner diameter surfaces of the first hoop 500 and the second hoop 501 are fixedly connected with washers 503, and the washers 503 are made of rubber. The washers 503 made of rubber can increase the friction between the first hoop 500 and the second hoop 501 and the tower ring 200. First screw holes 707 are opened at both ends of the first hoop 500, and second screw holes 709 are opened at both ends of the second hoop 501. A fixing sleeve 700 is placed outside the connection between the first hoop 500 and the second hoop 501.

[0049] As shown in Figures 5 to 11, the fastening mechanism includes a fixing sleeve 700 which is placed outside the first hoop 500 and the second hoop 501. A ring groove 706 is provided in the middle of the fixing sleeve 700. The first hoop 500 and the second hoop 501 are both located inside the ring groove 706, so that the first hoop 500 will move through the ring groove 706 when it is tightened. A first screw hole 707 is provided on one side of the fixing sleeve 700. A fixing nut 708 is fixedly provided on the surface of the first screw hole 707, so that when the screw rod 711 rotates, it can be rotated through the thread inside the fixing nut 708. A screw rod 711 is provided inside the fixing sleeve 700, and the screw rod 711 penetrates the first hoop 500 and enters the fixing nut 708. In this way, when the screw rod 711 rotates, it can drive the first hoop 500 to move through the retaining ring 710.

[0050] Two retaining rings 710 are sleeved on the outside of the screw rod 711, and the retaining rings 710 are respectively located on both sides of the first hoop 500. The screw rod 711 is fixedly connected with a knob 702 at the end away from the fixing nut 708, and the knob 702 drives the screw rod 711 to rotate. The knob 702 is fixedly provided with a clamping block 703 on the side surface away from the screw rod 711. The fixing sleeve 700 is fixedly provided with a fixing plate 705 on the side surface close to the knob 702. A rotating plate 704 is sleeved on the outside of the fixing plate 705, and the rotating plate 704 rotates around the fixing plate 705. The rotating plate 704 is located inside the clamping block 703, and the rotating plate 704 cooperates with the clamping block 703 to ensure that the knob 702 does not rotate autonomously, thereby ensuring that the first hoop 500 does not loosen during the lifting process.

[0051] A second screw hole 709 is provided inside the fixing sleeve 700 on a side away from the first screw hole 707. A bolt 712 is provided inside the second screw hole 709. The bolt 712 penetrates the second hoop 501 and enters the second screw hole 709. Through the provision of the bolt 712, the second hoop 501 can be fixedly connected to the fixing sleeve 700.

[0052] As shown in Figures 4 and 6, the limiting mechanism includes a fixing rod 502 fixedly arranged outside the first hoop 500, a baffle 300 is arranged at the lower end of the outside of the first hoop 500, the baffle 300 is in a circular ring shape, and a plurality of lifting plates 301 are arranged at the upper end of the outside of the baffle 300, and a slide groove 302 is opened inside the lifting plates 301, and the fixing rod 502 is located inside the slide groove 302. The inner diameter of the baffle 300 is larger than the outer diameter of the tower ring 200, so that when the baffle 300 is blocked, the tower ring 200 can also fall normally without interfering with the baffle 300.

[0053] As shown in Figures 4 and 5, the connecting mechanism includes two limiting rings 701 arranged on the outside of the fixing sleeve 700, and a rotating block 400 is arranged on the outside of the fixing sleeve 700. The limiting rings 701 are respectively located at both ends of the rotating block 400. The rotating block 400 can rotate around the fixing sleeve 700. A connecting ring 401 is arranged inside the rotating block 400. The connecting ring 401 can rotate inside the rotating block 400. The connecting ring 401 is connected to the hook 601. In this way, when the fixing sleeve 700 is lifted, the fixing sleeve 700 will not be deformed due to uniform force, and the fixing sleeve 700 will not be unable to be disassembled and installed due to deformation.

[0054] Working principle: When using the device to install a distillation tower, first place the produced tower ring 200 on the ground in front of the crane body 100, then take the first hoop 500 and the second hoop 501, and place them above the tower ring 200, and then slowly drop the first hoop 500 and the second hoop 501 until the first hoop 500 and the second hoop 501 are placed outside the tower ring 200, and the side where the first hoop 500 is located is supported by the baffle 300. At this time, the staff needs to support the second hoop 501 as well, so as to ensure that both sides of the first hoop 500 and the second hoop 501 are balanced;

[0055] Then, the staff member rotates the knob 702 to drive the screw rod 711 to rotate. When the screw rod 711 rotates, it drives the first hoop 500 to move away from the fixing nut 708 through the clamp ring 710, so that the first hoop 500 is tightened from both sides, so that the first hoop 500 cooperates with the second hoop 501 and fits tightly to the outside of the tower ring 200. The friction between the first hoop 500, the second hoop 501 and the tower ring 200 is increased through the rubber gasket 503.

[0056] After the first hoop 500 and the second hoop 501 are tightened, the staff can turn the rotating plate 704 around the fixed plate 705 to rotate, and the rotating plate 704 turns to one side of the knob 702 until the rotating plate 704 enters between the inside of the clamping block 703, thereby positioning the knob 702 so that the knob 702 will not rotate easily;

[0057] After that, a limiting ring 701 is rotatably placed on the outside of the fixed sleeve 700, and then the rotating block 400 is placed on the outside of the fixed sleeve 700, and finally another limiting ring 701 is rotatably placed on the outside of the fixed sleeve 700, so that the two limiting rings 701 limit and fix the rotating block 400 from both sides;

[0058] Then the crane body 100 can be started to drive the balancing assembly to descend until the balancing assembly falls to the height of the tower ring 200. The staff can pull the hook 601 and hook the hook 601 inside the connecting ring 401, so that the tower ring 200 can be connected to the crane body 100.

[0059] After the tower ring 200 is connected to the balance assembly through the connection mechanism, the crane body 100 is started to perform the hoisting operation. During the hoisting process, the crane body 100 simultaneously extends the boom 101 to move the position of the tower ring 200.

[0060] When the crane body 100 is hoisting, an upward pulling force is applied to the hook plate 602. At the same time, the hook plate 602 is driven upward, and an upward pulling force is also applied to the lifting ropes 600 on both sides. The lifting ropes 600 apply an upward pulling force to the connecting ring 401 through the hook 601, and the connecting ring 401 applies an upward pulling force to the fixing sleeve 700 through the rotating block 400. Because the fixing sleeve 700 is arranged on both sides of the tower ring 200, the tower ring 200 is balanced in force and will not easily tilt.

[0061] Finally, when the tower ring 200 is about to be moved above the installation position, the tower ring 200 is slowly lowered, and at the same time, the tower ring 200 is slowly moved to the installation position, so that under the action of gravity, the baffle 300 will fall, and the baffle 300 will also contact the installed tower ring 200, so that the tower ring 200 in the lifting process will not easily shake and be cheap, until the hoisted tower ring 200 is stacked on the welded tower ring 200, so that the staff can weld the two tower rings 200. After the welding between the tower rings 200 is completed, the staff can loosen the first hoop 500 and the second hoop 501, and let the crane body 100 lift the first hoop 500 and the second hoop 501 and other structures away, and then carry out the lifting work of the next tower ring 200.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crane for installing a distillation tower, comprising a crane body (100) and a tower ring (200), characterized in that: The crane body (100) is provided with a boom (101), and a suspension wheel (102) is fixedly provided at one end of the boom (101) away from the crane body (100); a suspension hook (103) is provided at the outer lower end of the suspension wheel (102), and a balancing component is provided at the outer lower end of the suspension hook (103), and the balancing component can balance the tower ring (200); The outer fixing sleeve (700) of the tower ring (200) is sleeved with a clamping assembly, and the clamping assembly includes a first hoop (500), a second hoop (501), a fastening mechanism, a limiting mechanism and a connecting mechanism. The fastening mechanism can fasten the first hoop (500) and the second hoop (501), the limiting mechanism can block and limit the tower ring (200), and the connecting mechanism connects the tower ring (200) with the balancing assembly; The first hoop (500) and the second hoop (501) are both semicircular in shape. The first hoop (500) and the second hoop (501) are closely arranged. The tower ring (200) is located inside the first hoop (500) and the second hoop (501). Washers (503) are fixedly connected to the inner diameter surfaces of the first hoop (500) and the second hoop (501). The washers (503) are made of rubber. First screw holes (707) are opened at both ends of the first hoop (500). Second screw holes (709) are opened at both ends of the second hoop (501). A fixing sleeve (700) is placed outside the connection between the first hoop (500) and the second hoop (501). The fastening mechanism comprises a fixing sleeve (700) which is placed outside the first hoop (500) and the second hoop (501); a ring groove (706) is provided in the middle of the fixing sleeve (700); the first hoop (500) and the second hoop (501) are both located inside the ring groove (706); a third screw hole is provided on one side of the fixing sleeve (700); a fixing nut (708) is fixedly provided on the surface of the third screw hole; a screw rod (711) is provided inside the fixing sleeve (700); the screw rod (711) passes through the first hoop (500) and enters the fixing nut (708); Two retaining rings (710) are sleeved on the outside of the screw rod (711), and the retaining rings (710) are respectively located on both sides of the first hoop (500); a knob (702) is fixedly connected to the end of the screw rod (711) away from the fixing nut (708); a clamping block (703) is fixedly provided on the surface of the knob (702) on the side away from the screw rod (711); a fixing plate (705) is fixedly provided on the surface of the fixing sleeve (700) on the side close to the knob (702); a rotating plate (704) is sleeved on the outside of the fixing plate (705), and the rotating plate (704) rotates around the fixing plate (705), and the rotating plate (704) is located inside the clamping block (703); A fourth screw hole is provided inside the fixing sleeve (700) on a side away from the third screw hole, a bolt (712) is provided inside the fourth screw hole, and the bolt (712) passes through the second hoop (501) and enters the fourth screw hole; The limiting mechanism comprises a fixing rod (502) fixedly arranged outside the first hoop (500); a baffle (300) is arranged at the lower end outside the first hoop (500); the baffle (300) is in a circular ring shape; a plurality of lifting plates (301) are arranged at the upper end outside the baffle (300); each lifting plate (301) has a sliding groove (302) formed inside; and the fixing rod (502) is located inside the sliding groove (302).

2. A distillation tower installation crane according to claim 1, characterized in that: The balancing component comprises a hook plate (602) hooked on the outside of the hook (103); a hook groove (604) is provided in the middle of the hook plate (602); the hook (103) is connected to the hook plate (602) via the hook groove (604); rope holes (603) are provided on both sides of the hook plate (602); the rope holes (603) are connected to the inside of each of the rope holes (603); and a hook (601) is fixedly provided at the end of the rope (600) away from the hook plate (602).

3. The crane for installing a distillation tower according to claim 1, characterized in that: The connection mechanism comprises two limiting rings (701) which are sleeved on the outside of a fixing sleeve (700); a rotating block (400) is sleeved on the outside of the fixing sleeve (700); the limiting rings (701) are respectively located at two ends of the rotating block (400); the rotating block (400) can rotate around the fixing sleeve (700); a connecting ring (401) is arranged inside the rotating block (400); the connecting ring (401) can rotate inside the rotating block (400); and the connecting ring (401) is connected to a hook (601).

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