Tower top horizontal steering tool for improving absorption tower

Abstract

The invention relates to the technical field of absorption tower transformation, and discloses a tower top horizontal steering tool for absorption tower transformation, which is characterized in that annular cutting is performed along the circumferential direction of an absorption tower to form a dividing seam, and the dividing seam divides the absorption tower into an upper tower body and a lower tower body; a steering mechanism is arranged between the upper tower body and the lower tower body and comprises a jacking assembly for lifting the upper tower body upwards, a supporting assembly arranged in the dividing seam and a traction assembly for driving the upper tower body to rotate along the axis of the upper tower body; horizontal steering of the upper tower body is achieved in the tower through the steering mechanism, the device has the advantages of being simple in structure, flexible to operate and low in cost, different from traditional large mechanical hoisting, an operator does not need to frequently conduct hoisting operation at high altitude, safety accidents such as personnel falling and object falling possibly caused by high-altitude operation are avoided, and the safety of the operator is improved. The safety risk in the construction process is remarkably reduced, and the safety and stability of construction are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of absorption tower modification, in particular to a tower top horizontal turning tool for absorption tower modification. Background Art

[0002] An absorption tower is a device used to perform absorption operations and is widely used in the chemical industry, environmental protection and other fields. Its main function is to separate harmful components or target components from the gas through the contact between gas and liquid using an absorbent, thereby achieving the purpose of purifying the gas or recovering useful substances.

[0003] In order to improve the filtering effect of harmful components, an additional secondary tower is usually added between the absorption tower and the smoke. After adding the secondary tower, the smoke outlet at the top of the absorption tower needs to be connected to the smoke inlet of the secondary tower. However, the smoke outlet of the absorption tower and the smoke inlet of the secondary tower are not in the same direction, so the direction of the smoke outlet at the top of the absorption tower needs to be adjusted.

[0004] The current method is to cut the absorption tower in half, then use large-scale machinery to drive the top of the absorption tower to rotate horizontally, adjust the direction and re-weld it. However, the use of large-scale machinery for lifting has the following disadvantages:

[0005] Large lifting equipment is bulky and requires specialized vehicles and complex logistics arrangements for transportation, resulting in high transportation costs. It also requires ample space for operation and places high demands on construction site conditions.

[0006] During the lifting process, operations need to be performed at high altitudes, and personnel and equipment are at high altitudes, making falling accidents prone to occur. Summary of the Invention

[0007] In view of the problems existing in the above-mentioned tower top horizontal turning tool for transforming the existing absorption tower, the present invention is proposed.

[0008] The above technical problems are solved by the following technical solutions: The present invention proposes a tower top horizontal turning tool for absorption tower transformation, comprising:

[0009] A circular cut is made along the circumference of the absorption tower to form a dividing seam, wherein the dividing seam divides the absorption tower into two parts to form an upper tower body and a lower tower body;

[0010] A steering mechanism is provided between the upper tower body and the lower tower body. The steering mechanism includes a lifting assembly for lifting the upper tower body upward, a supporting assembly provided in the dividing seam, and a traction assembly for driving the upper tower body to rotate along its own axis.

[0011] In a preferred embodiment of the tower top horizontal steering tool for absorption tower reconstruction of the present invention, the lifting assembly includes a load block and a lifting member, the load block is fixed to the inner side of the upper tower body, and the lifting member is fixed to the bottom of the lower tower body and has an extended and retracted state;

[0012] In the extended state, the upper load block realizes the upward displacement of the upper tower body away from the lower tower body. In this state, the lifting member bears the load of the upper tower body;

[0013] In the retracted state, the load block is driven to move slowly downward, so that the upper tower body moves downward and closer to the lower tower body. In this state, the lifting member does not bear the load of the upper tower body.

[0014] In a preferred embodiment of the tower top horizontal steering tool for absorption tower reconstruction of the present invention, the support assembly includes an upper ring plate and a lower ring plate, wherein the upper ring plate and the lower ring plate are arranged opposite to each other and are respectively arranged at the bottom outer edge of the upper tower body and the upper outer edge of the lower tower body;

[0015] Roller members are equidistantly arranged on the upper surface of the lower ring plate, and the roller members have supporting and rolling states;

[0016] In the supporting state, it is used to bear the load of the upper tower body when the lifting member is retracted;

[0017] In the rolling state, it is used to reduce the friction resistance of the upper tower body when it rotates horizontally along its axis.

[0018] In a preferred embodiment of the tower top horizontal turning tool for absorption tower transformation of the present invention: the upper ring plate and the lower ring plate are both surrounded by a plurality of arc-shaped plates.

[0019] In a preferred embodiment of the tower top horizontal steering tool for absorption tower reconstruction of the present invention: the traction assembly includes a fixed ring and a traction ring, and a dragging member is provided between the fixed ring and the traction ring.

[0020] In a preferred embodiment of the tower top horizontal steering tool for absorption tower modification of the present invention: the fixed ring is fixed to the inner side of the lower ring plate, the traction ring is fixed to the inner side of the upper ring plate, and the angle between the traction ring and the fixed ring is an acute angle.

[0021] In a preferred embodiment of the tower top horizontal steering tool for absorption tower modification of the present invention: the fixed end of the dragging member is fixed on the fixed ring, and the traction end of the dragging member is fixed on the traction ring, and the dragging member drives the traction ring to approach the fixed ring under the dragging action.

[0022] In a preferred embodiment of the tower top horizontal steering tool for absorption tower modification of the present invention: the steering mechanism also includes a limit assembly, which is equidistantly arranged on the outside of the upper ring plate to provide guide restrictions when the upper tower body is horizontally turned.

[0023] In a preferred embodiment of the tower top horizontal steering tool for absorption tower modification of the present invention: the limiting assembly includes a square tube, a limiting rod is movably arranged in the square tube, and the other end of the limiting rod is rotatably connected to a limiting wheel attached to the outer side of the lower tower body.

[0024] In a preferred embodiment of the tower top horizontal steering tool for absorption tower modification of the present invention: a locking piece is provided between the square tube and the limit rod, and the locking piece has two states of loosening and locking for length adjustment.

[0025] The beneficial effects of the present invention are: the present invention realizes horizontal steering of the upper tower body in the tower through the steering mechanism, and has the advantages of simple structure, flexible operation and low cost. Unlike traditional large-scale mechanical lifting, operators do not need to frequently perform lifting operations at high altitudes, avoiding safety accidents such as people falling and objects falling due to high-altitude operations, significantly reducing the safety risks in the construction process, and significantly improving the safety and stability of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0027] Figure 1 A three-dimensional structural diagram of a tower top horizontal turning tool for absorption tower reconstruction is shown;

[0028] Figure 2 Shown Figure 1 A magnified structural diagram at center A;

[0029] Figure 3 The structure diagram of the steering mechanism in the horizontal steering tool for the top of the absorption tower modification is shown;

[0030] Figure 4 Shows the structure of the limiting assembly in the tower top horizontal turning tool for absorption tower transformation;

[0031] Figure 5 A cross-sectional structural diagram of the square tube in the top horizontal turning tool for absorption tower modification is shown. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0033] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0034] Reference Figure 1-3 This embodiment provides a tower top horizontal turning tool for absorption tower reconstruction, comprising:

[0035] A circular cut is made along the circumference of the absorption tower to form a dividing seam 1, which divides the absorption tower into two parts to form an upper tower body 2 and a lower tower body 3;

[0036] A steering mechanism 4 is provided between the upper tower body 2 and the lower tower body 3. The steering mechanism 4 includes a lifting assembly 41 for lifting the upper tower body 2 upward, a supporting assembly 42 provided in the dividing seam 1, and a traction assembly 43 for driving the upper tower body 2 to rotate along its own axis.

[0037] The lifting assembly 41 includes a load block 411 and a lifting member 412. The load block 411 is fixed to the inner side of the upper tower body 2, and the lifting member 412 is fixed to the bottom of the lower tower body 3, and has an extended and retracted state.

[0038] In the extended state, the upper load block 411 enables the upper tower body 2 to move upward away from the lower tower body 3. In this state, the lifting member 412 bears the load of the upper tower body 2.

[0039] In the retracted state, the load block 411 is driven to move downward slowly, so that the upper tower body 2 moves downward close to the lower tower body 3 . In this state, the lifting member 412 does not bear the load of the upper tower body 2 .

[0040] Specifically, the dividing seam 1 is located 400 mm above the demister section of the absorption tower. There is an access door at the demister of the absorption tower. The operator enters the top of the demister through the access door and first draws a cutting line based on the measurement to assist in cutting.

[0041] Before cutting the dividing seam 1, it is necessary to install the support assembly 42. The support assembly 42 is equidistantly arranged on the inner periphery of the absorption tower. During installation, the load block 411 is first welded to the inner periphery of the upper tower body 2 and is located above the dividing seam 1. Then, the lifting member 412 is welded to the upper part of the lower tower body 3 and is located directly below the load block 411. A sleeve is fixed to the bottom of the load block 411, and the telescopic end of the lifting member 412 is inserted upward into the sleeve to ensure the stability of the upper tower body 2 during cutting. After cutting, the upper tower body 2 is separated from the lower tower body 3. At this time, the lifting member 412 is extended, and the upper load block 411 makes the upper tower body 2 move upward away from the lower tower body 3.

[0042] The lifting member 412 adopts a 10-ton hydraulic jack with a lifting stroke of 100 mm;

[0043] The support assembly 42 includes an upper ring plate 421 and a lower ring plate 422. The upper ring plate 421 and the lower ring plate 422 are arranged opposite to each other and are respectively arranged on the outer edge of the bottom end of the upper tower body 2 and the outer edge of the upper end of the lower tower body 3;

[0044] Roller members 433 are equidistantly provided on the upper surface of the lower ring plate 422, and the roller members 433 have supporting and rolling states;

[0045] In the supporting state, it is used to bear the load of the upper tower body 2 when the lifting member 412 is retracted;

[0046] In the rolling state, it is used to reduce the friction resistance of the upper tower body 2 when it rotates horizontally along its axis.

[0047] Specifically, the upper ring plate 421 and the lower ring plate 422 are both made of steel plates with a thickness of 16 mm and a width of 210 mm;

[0048] The upper ring plate 421 and the lower ring plate 422 are symmetrically fixed with reinforcing ribs. The distance between the two opposite reinforcing ribs is consistent with the thickness of the outer periphery of the upper tower body 2 and the lower tower body 3. They are welded and installed to ensure the overall strength.

[0049] After the upper tower body 2 is lifted up, the upper ring plate 421 and the lower ring plate 422 need to be welded to the bottom of the upper tower body 2 and the upper end of the lower tower body 3 respectively. The upper ring plate 421 and the lower ring plate 422 are both surrounded by a plurality of arc-shaped plates, which makes welding more convenient.

[0050] The roller member 433 includes a rotating frame 4331 and a roller 4332. The roller 4332 rotates on the inner side of the rotating frame 4331. The rotating frame 4331 is welded to the arc plate. When the upper ring plate 421 and the lower ring plate 422 are installed, the lifting member 412 is controlled to retract. After retraction, the load block 411 is driven to move slowly downward, so that the upper tower body 2 moves downward and approaches the lower tower body 3. In this state, the lifting member 412 does not bear the load of the upper tower body 2 until the upper ring plate 421 at the bottom of the upper tower body 2 is mounted on the roller 4332, and the upper tower body 2 is supported by the roller 4332.

[0051] The traction assembly 43 includes a fixing ring 431 and a traction ring 432 , and a traction member 433 is provided between the fixing ring 431 and the traction ring 432 .

[0052] Specifically, there are multiple groups of traction components 43, and the multiple groups of traction components 43 are equidistantly arranged on the inner periphery of the absorption tower;

[0053] The fixing ring 431 is fixed to the inner side of the lower ring plate 422 , and the traction ring 432 is fixed to the inner side of the upper ring plate 421 . The included angle between the traction ring 432 and the fixing ring 431 is an acute angle.

[0054] The fixed end of the dragging member 433 is fixed to the fixing ring 431 , and the pulling end of the dragging member 433 is fixed to the pulling ring 432 . The dragging member 433 drives the pulling ring 432 to approach the fixing ring 431 under the pulling action.

[0055] During traction, each person controls a traction assembly 43 and needs to operate the traction member 433 in the same traction direction at the same time. After the traction member 433 is operated, it will drive the traction ring 432 to approach the fixed ring 431. Since the traction ring 432 and the fixed ring 431 are respectively fixed to the upper ring plate 421 and the lower ring plate 422, and the upper ring plate 421 and the lower ring plate 422 are respectively welded and fixed to the upper tower body 2 and the lower tower body 3, when the traction ring 432 approaches the fixed ring 431, the upper tower body 2 is horizontally rotated along its own axis until the cigarette outlet at the top of the upper tower body 2 faces the required downward direction.

[0056] Finally, the lifting member 412 is controlled to extend again to drive the upper tower body 2 to rise, the support assembly 42 and the dragging member 433 are removed, and the lifting member 412 is controlled to retract to drive the upper tower body 2 to descend until the outer periphery of the upper tower body 2 coincides with the outer periphery of the lower tower body 3. After the overlap, the dividing seam 1 is welded and completed to complete the steering adjustment of the upper tower body 2.

[0057] The tool has a simple structure and is easy to operate. It solves the drawbacks of using large-scale mechanical lifting and has the characteristics of low cost, safe operation and high efficiency.

[0058] As an optional embodiment:

[0059] Reference Figure 4-5 In one embodiment provided in the present application, the steering mechanism 4 further includes a limit assembly 44, which is equidistantly arranged on the outside of the upper ring plate 421 to provide guide restrictions when the upper tower body 2 is horizontally turned.

[0060] The limiting assembly 44 includes a square tube 441 , in which a limiting rod 442 is movably provided. The other end of the limiting rod 442 is rotatably connected to a limiting wheel 443 affixed to the outer side of the lower tower body 3 .

[0061] A locking member 444 is provided between the square tube 441 and the limiting rod 442 . The locking member 444 has two states: loose and locked, and is used for length adjustment.

[0062] Specifically, the limiting rod 442 has a vertical section, with cross bars in the same direction fixed at both ends of the vertical section. The cross bar at the top is longer than the cross bar at the bottom. The top cross bar moves within the square tube 441, and the limiting wheel 443 is rotatably connected to the end of the bottom cross bar.

[0063] The locking member 444 includes a pressure block 4441 provided on one side of the square tube 441, a screw 4442 being fixed to one end of the pressure block 4441, one end of the screw 4442 passing through the limiting rod 442 and the square tube 441 and being threadedly connected to a nut 4443, a strip groove 4444 being provided in the middle section of the limiting rod 442 corresponding to the position of the screw 4442, the strip groove 4444 is used to prevent the limiting rod 442 from interfering with the screw 4442 when adjusting. When loosening, the nut 4443 is turned counterclockwise. Since a protrusion is provided on the outer side of the screw 4442, the square tube 441 is pressed against the corresponding protrusion. There is a convex groove at the position for limiting the rotation of the screw rod 4442. Therefore, when the nut 4443 rotates, the screw rod 4442 will not rotate, but will only make linear displacement along the thread rotation direction of the nut 4443. After the linear displacement, the pressure block 4441 is no longer tightly against the limiting rod 442. At this time, the limiting rod 442 can be movable and the length can be adjusted. After the adjustment is completed, the nut 4443 is rotated clockwise, so that the pressure block 4441 is tightly against the limiting rod 442, and the limiting rod 442 is locked to ensure that the limiting wheel 443 at the end of the limiting rod 442 is fitted to the outer periphery of the lower tower body 3;

[0064] This structure plays a role of limiting when the upper tower body 2 is horizontally turned, avoiding the problem of deviation and ensuring the safety of the horizontal turning operation.

[0065] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A tower top horizontal turning tool for absorption tower reconstruction, characterized by: include, A circular cut is made along the circumference of the absorption tower to form a split seam (1), wherein the split seam (1) divides the absorption tower into two parts to form an upper tower body (2) and a lower tower body (3); A steering mechanism (4) is provided between the upper tower body (2) and the lower tower body (3), and the steering mechanism (4) comprises a lifting assembly (41) for lifting the upper tower body (2) upward, a supporting assembly (42) provided in the dividing seam (1), and a traction assembly (43) for driving the upper tower body (2) to rotate along its own axis.

2. The tower top horizontal steering tool for absorption tower reconstruction according to claim 1, characterized in that: The lifting assembly (41) includes a load block (411) and a lifting member (412), wherein the load block (411) is fixed to the inner side of the upper tower body (2), and the lifting member (412) is fixed to the bottom of the lower tower body (3), and has an extended and retracted state; In the extended state, the upper load block (411) enables the upper tower body (2) to move upward away from the lower tower body (3). In this state, the lifting member (412) bears the load of the upper tower body (2); In the retracted state, the load block (411) is driven to move slowly downward, so that the upper tower body (2) moves downward close to the lower tower body (3). In this state, the lifting member (412) does not bear the load of the upper tower body (2).

3. The tower top horizontal steering tool for absorption tower reconstruction according to claim 2, characterized in that: The support assembly (42) comprises an upper ring plate (421) and a lower ring plate (422), wherein the upper ring plate (421) and the lower ring plate (422) are arranged opposite to each other and are respectively arranged at the outer edge of the bottom end of the upper tower body (2) and the outer edge of the upper end of the lower tower body (3); Roller members (433) are equidistantly arranged on the upper surface of the lower ring plate (422), and the roller members (433) have supporting and rolling states; In the supporting state, it is used to bear the load of the upper tower body (2) when the lifting member (412) is in the retracted state; In the rolling state, it is used to reduce the friction resistance of the upper tower body (2) when it rotates horizontally along its axis.

4. The tower top horizontal steering tool for absorption tower reconstruction according to claim 3, characterized in that: The upper ring plate (421) and the lower ring plate (422) are both formed by enclosing a plurality of arc-shaped plates.

5. The tower top horizontal steering tool for absorption tower reconstruction according to claim 4, characterized in that: The traction assembly (43) comprises a fixing ring (431) and a traction ring (432), and a traction member (433) is provided between the fixing ring (431) and the traction ring (432).

6. The tower top horizontal steering tool for absorption tower reconstruction according to claim 5, characterized in that: The fixing ring (431) is fixed to the inner side of the lower ring plate (422), the traction ring (432) is fixed to the inner side of the upper ring plate (421), and the angle between the traction ring (432) and the fixing ring (431) is an acute angle.

7. The tower top horizontal turning tool for absorption tower reconstruction according to claim 6, characterized in that: The fixed end of the dragging member (433) is fixed on the fixing ring (431), and the traction end of the dragging member (433) is fixed on the traction ring (432). The dragging member (433) drives the traction ring (432) to approach the fixing ring (431) under the dragging action.

8. The tower top horizontal steering tool for absorption tower reconstruction according to claim 7, characterized in that: The steering mechanism (4) further comprises a limiting assembly (44), which is equidistantly arranged outside the upper ring plate (421) and is used to provide a guide limit when the upper tower body (2) is horizontally turned.

9. The tower top horizontal steering tool for absorption tower reconstruction according to claim 8, characterized in that: The limiting assembly (44) comprises a square tube (441), a limiting rod (442) is movably arranged in the square tube (441), and the other end of the limiting rod (442) is rotatably connected to a limiting wheel (443) affixed to the outer side of the lower tower body (3).

10. The tower top horizontal turning tool for absorption tower reconstruction according to claim 9, characterized in that: A locking member (444) is provided between the square tube (441) and the limiting rod (442). The locking member (444) has two states, namely, a loosened state and a locked state, and is used for length adjustment.

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