CN221253694U - Novel tool for inspecting 180-degree bent pipe of alumina dissolution device - Google Patents
Novel tool for inspecting 180-degree bent pipe of alumina dissolution device Download PDFInfo
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- CN221253694U CN221253694U CN202323078823.XU CN202323078823U CN221253694U CN 221253694 U CN221253694 U CN 221253694U CN 202323078823 U CN202323078823 U CN 202323078823U CN 221253694 U CN221253694 U CN 221253694U
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000004090 dissolution Methods 0.000 title claims description 6
- 239000000725 suspension Substances 0.000 claims abstract description 49
- 238000012423 maintenance Methods 0.000 claims abstract description 39
- 230000029087 digestion Effects 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000087 stabilizing effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 14
- 238000007689 inspection Methods 0.000 description 10
- 210000001503 joint Anatomy 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a novel 180-degree bent pipe maintenance tool for an alumina digestion device, which belongs to the technical field of alumina production, and comprises a hoisting assembly, a moving and counterweight assembly and a hydraulic support assembly, wherein the bent pipe to be maintained is hoisted, leveled, transported, detached and assembled, and the tool is reasonable in design, reliable in structure and suitable for large-scale popularization; compared with the prior art, the operation mode that the sleeve is tied up by the chain or the rope at the fixed position and then the manual hoist is temporarily welded and hung above the bent pipe to detach and hoist the bent pipe is more convenient, and the maintenance efficiency is greatly improved. The hoisting assembly comprises a suspension arm, a suspension cable and a lock turnbuckle arranged on the suspension cable, and is used for hoisting the bent pipe to a specified height and leveling; the moving and counterweight assembly comprises a base, a roller skate and a counterweight block, and a moving elbow; the hydraulic support assembly comprises a main support rod, an auxiliary support rod and a hydraulic support rod, and is used for adjusting the height of the boom and stabilizing the boom.
Description
Technical Field
The utility model belongs to the technical field of alumina production, and particularly relates to a novel tool for inspecting a 180-degree bent pipe of an alumina digestion device.
Background
The digestion and dilution sub-term is one of the important elements in the alumina process, and the digestion sleeve is an important device in this sub-term. In an alumina dissolution production workshop, the 180-degree bent pipes at the two ends of the sleeve are required to be disassembled during maintenance, the bent pipes are conveyed to the maintenance position for maintenance, the bent pipes are required to be conveyed back to the sleeve position for butt joint after maintenance, the bent pipes are required to be installed back to the sleeve, the conveying distance is long, and the working procedure is complicated.
At present, in the process of inspecting the digestion sleeve in an alumina factory, a special tool is not used for disassembling the 180-degree bent pipe, the sleeve is tied up by a chain or a rope at a fixed position in a common method, and then a hand hoist is temporarily welded and hung above the bent pipe for disassembly and hoisting, so that more operators are required, the disassembly and assembly efficiency is low, and the operation is limited because the disassembly and assembly are required at the fixed position; when the bent pipe is sent to the maintenance inspection, the manual hoist is required to be inclined, the moving position of the bent pipe is limited, the movement is completed with the assistance of a plurality of persons, the labor cost is high, and the maintenance inspection efficiency is low; when the elbow is installed to the sleeve, the leveling alignment is difficult to be performed once, and the installation efficiency is affected; as the unit scale of the pipelining digestion unit is larger and larger, the disassembly and assembly workload of one-time maintenance and inspection can be more than 200 bent pipes, and the huge workload directly influences the maintenance and inspection time length, thereby influencing the operation rate of the whole factory. Therefore, a special maintenance tool for the bent pipe is researched to improve the maintenance efficiency of the alumina digestion device, and the maintenance tool is convenient to operate and has important practical value.
Disclosure of utility model
Aiming at the problems existing in the prior art, the utility model provides a novel aluminum oxide dissolution device 180-degree bent pipe maintenance tool which has the functions of hoisting and moving, realizes the work of hoisting, leveling, transporting, disassembling and assembling the bent pipe to be maintained and is reasonable in design, reliable in structure and suitable for large-scale popularization; compared with the prior art, the operation mode that the sleeve is tied up by the chain or the rope at the fixed position and then the manual hoist is temporarily welded and hung above the bent pipe to detach and hoist the bent pipe is more convenient, and the maintenance efficiency is greatly improved.
In view of the above, the utility model relates to a novel tool for inspecting a 180-degree bent pipe of an alumina digestion device, which is used for carrying out the work of hoisting, leveling, transporting, disassembling and assembling the bent pipe to be inspected, and comprises a hoisting assembly, a moving and counterweight assembly and a hydraulic support assembly; wherein,
The lifting assembly comprises a suspension arm, a sling and a lock turnbuckle arranged on the sling, and is used for lifting the bent pipe to a specified height and leveling the bent pipe; the suspension arm comprises a front end part and a rear end part, the rear end part is a hollow steel rod, the hollow steel rod is sleeved on the outer wall of the front end part, and the front end part generates axial telescopic displacement along the inner wall of the rear end part; three slings are fixed on the lower surface of the front end part and are respectively hooked with three lifting lugs on the upper surface of the bent pipe;
The moving and counterweight assembly comprises a base, a roller skate and a counterweight block and is used for moving the bent pipe and stabilizing the hoisting assembly; the base comprises two supporting legs and a telescopic hydraulic limiting rod, one ends of the two supporting legs are hinged to one point, the two supporting legs are opened and closed to rotate by taking a hinged point as the center, and two ends of the telescopic hydraulic limiting rod are respectively fixed on the two supporting legs; the roller skate is arranged on the lower surface of the base; the balancing weight is arranged on the supporting leg and the telescopic hydraulic limiting rod;
The hydraulic support assembly comprises a main support rod, an auxiliary support rod and a hydraulic support rod, and is used for adjusting the height of the boom and stabilizing the boom; the two ends of the main supporting rod are respectively hinged to the rear end part of the suspension arm and the telescopic hydraulic limiting rod; two ends of the auxiliary supporting rod are respectively hinged to the main supporting rod and the supporting legs; two ends of the hydraulic support rod are respectively hinged to the rear end parts of the telescopic hydraulic limiting rod and the suspension arm;
The length of the suspension arm, the telescopic hydraulic limiting rod or the hydraulic supporting rod is fixed through a limiting bolt.
The base also comprises a connecting rod, the two supporting legs are hinged through the connecting rod, and the two supporting legs, the connecting rod and the telescopic hydraulic limiting rod form a quadrilateral.
The two support legs are provided with first detachable support rods at the ends far away from the hinge points, the first detachable support rods are supported between the two support legs, the first detachable support rods are telescopic steel tubes, and the length of the first detachable support rods is fixed through limiting bolts.
And a second detachable support rod is hinged between the front end part of the suspension arm and the first detachable support rod, the second detachable support rod is a telescopic steel tube, and the length of the second detachable support rod is fixed through a limiting bolt.
The wheel skidding is a universal wheel, and the universal wheel is locked through a limiter.
5 Skidding wheels are uniformly arranged on the lower surface of each supporting leg, and 1 skidding wheel is arranged on the lower surface of the telescopic hydraulic limiting rod.
The sling is made of a steel wire rope.
The front end part is a hollow steel rod.
The balancing weight consists of at least one steel block with mass; the weight of the balancing weight is determined according to the weight of the bent pipe.
The beneficial effects of the utility model are as follows:
1. The utility model utilizes the three targeted components of the hoisting component, the moving and counterweight component and the hydraulic support component, so that the maintenance tool has the functions of hoisting and moving, and the work of hoisting, leveling, transporting, disassembling and assembling the bent pipe to be maintained is completed, the design is reasonable, the structure is reliable, and the maintenance tool is suitable for large-scale popularization; compared with the prior art, the operation mode that the sleeve is tied up by the chain or the rope at the fixed position and then the manual hoist is temporarily welded and hung above the bent pipe to detach and hoist the bent pipe is more convenient, and the maintenance efficiency is greatly improved.
2. Compared with the prior art, the method has the advantages that the operation of temporarily welding and hanging the manual hoist above the bent pipe and then bundling the sleeve by a plurality of persons below the bent pipe is often adopted, the steps of the method are numerous, the bent pipe cannot be accurately leveled, and the horizontal orientation is difficult to maintain after leveling; according to the utility model, the three slings of the hoisting assembly are used for hooking the lifting lug welded on the bent pipe in advance, so that the bent pipe is locked and hoisted, and the levelness of the bent pipe is precisely adjusted by adjusting the lock turnbuckle on the slings, so that the operation is simple, the number of procedures and workers is reduced, the working efficiency is greatly improved, and the bent pipe can be kept in a horizontal state in the moving process.
3. Compared with the prior art that the hand hoist is required to be inclined when the bent pipe is sent to maintenance, the moving position of the bent pipe is limited, the movement is completed with the assistance of a plurality of persons, and the working efficiency is low; the base is simple in structure, the universal wheels are arranged, and once the hoisting of the bent pipe is finished, only 1 or 2 persons apply thrust to push the maintenance tool to drive the bent pipe to move freely, the moving distance is not restricted, and the movement is more convenient on the basis of saving manpower.
4. According to the utility model, the height of the lifting arm is adjusted by rotating the main supporting rod or adjusting the length of the telescopic hydraulic limiting rod, so that the lifting of the bent pipe by the maintenance tool is facilitated, the bent pipe is placed at a specified position, or the lifted bent pipe is in butt joint with the sleeve; the suspension arm is supported by the main supporting rod and the auxiliary supporting rod, so that the suspension arm is stable; the maintenance tool is simple in structure and convenient to operate, labor cost is greatly saved, and working efficiency is greatly improved.
5. The utility model is convenient to lift or put down the bent pipe by closing the two supporting legs or opening the two supporting legs to the two sides, is beneficial to the advancing and retreating of the maintenance tool, has simple and stable structure and reduces the manufacturing cost.
6. According to the utility model, the telescopic first detachable support rod is flexibly arranged between two support legs according to actual needs, and the opening angle between the two support legs is fixed; flexibly installing a telescopic second detachable support rod between the suspension arm and the base, supporting the front end part of the suspension arm, and enhancing the stability of the suspension arm; simple structure, according to the nimble selection of actual need, guarantee the stability of this dimension instrument of examining.
7. According to the utility model, the balancing weight is arranged at one end of the base, the self weight of the balancing weight is utilized to apply pressure to the base, and the balance and stability of the whole structure of the maintenance tool are ensured according to the lever principle; the weight of the balancing weight is determined according to the weight of the bent pipe, and the balancing weights with different weights are matched through calculation for the bent pipes with different weights; simple structure and greatly reduced manufacturing cost.
8. According to the utility model, the suspension arm, the telescopic hydraulic limiting rod, the hydraulic supporting rod, the first detachable supporting rod or the second detachable supporting rod are limited through the limiting bolt, so that the length of the suspension arm is fixed, and the stability of the maintenance tool is ensured.
9. In the utility model, the operation process of lifting and installing the bent pipe back to the sleeve is opposite to the operation process of detaching, lifting and conveying the bent pipe from the sleeve to the maintenance platform, the bent pipe is lifted and conveyed back to the butt joint of the sleeve, the designated height is regulated to be stable, and the butt joint installation of the bent pipe and the sleeve is completed by installing the bolts.
Drawings
FIG. 1 is a front perspective view of a novel alumina digestion device 180 bend inspection tool of the present utility model;
FIG. 2 is a top perspective view of the tool of the present utility model in the lifting of an elbow;
FIG. 3 is a top perspective view of the tool of the present utility model when the elbow is disassembled to the inspection platform;
In the figure, 11, an elbow; 12. lifting lugs; A. the gravity center of the bent pipe; 21. a suspension arm; 22. a hanging ring; 23. a sling; 24. a lock turnbuckle; 31. a support leg; 32. a retractable hydraulic stop lever; 33. a connecting rod; 34. a first detachable support bar; 35. a roller skate; 36. balancing weight; 41. a main support rod; 42. an auxiliary supporting rod; 43. a hydraulic support rod; 44. the second detachable support rod.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Example 1
As shown in fig. 1-3, the novel tool for inspecting the 180-degree bent pipe of the alumina digestion device comprises a hoisting assembly, a moving and counterweight assembly and a hydraulic support assembly, and is used for hoisting, leveling, transporting, disassembling and assembling the bent pipe 11 to be inspected. Wherein,
As shown in fig. 1, the hoisting assembly is used for hoisting the bent pipe 11 to a specified height and leveling the bent pipe 11, so that the bent pipe 11 can be disassembled and assembled more efficiently. The lifting assembly comprises a suspension arm 21, a sling 23 and a lock turnbuckle 24 arranged on the sling 23. The boom 21 is a telescopic steel rod, and the boom 21 is processed into other shapes or made of other materials according to actual needs, for example, an aluminum alloy rod shape, an aluminum alloy tubular shape, a carbon steel tubular shape or a seamless manganese steel tubular shape. The suspension arm 21 comprises a front end part and a rear end part, the rear end part is a hollow steel rod, and the hollow steel rod is sleeved on the outer wall of the front end part, so that the front end part can generate axial telescopic displacement along the inner wall of the rear end part, and the telescopic characteristic of the suspension arm 21 is realized; preferably, the front end portion is also machined as a hollow steel bar, reducing the overall weight of the boom 21. By mounting the limiting latch on the boom 21, the front end portion and the rear end portion of the boom 21 are limited for fixing the length of the boom 21 and preventing the front end portion from being separated from the rear end portion. The lower surface of the front end part of the suspension arm 21, which is close to the end, is provided with a suspension ring 22, the suspension ring 22 simultaneously hooks one end of three suspension ropes 23, the other ends of the three suspension ropes 23 are respectively hooked with three lifting lugs 12 fixed on different positions of the upper surface of the elbow 11, and as can be seen by combining with fig. 1-2, the three lifting lugs 12 are respectively arranged on the upper surface of the elbow 11, which is close to two pipe orifices and the bending position, and the three suspension ropes 23 are respectively connected with the three lifting lugs 12 to form a stable triangular pyramid structure, so that the center of gravity A of the elbow hung on the suspension arm 21 is stabilized in the structural center of the elbow 11, and the elbow 11 always keeps a horizontal state in moving, and the elbow 11 is not inclined, collided or damaged due to the instability of the center of gravity A of the elbow; the lifting lug 12 is welded on the upper surface of the bent pipe 11 in advance when the bent pipe 11 is manufactured. Preferably, the slings 23 are made of steel wire ropes, and each sling 23 is provided with a lock turnbuckle 24 for precisely adjusting the length of the sling 23; the three lock turnbuckles 24 are mutually matched with each other to level the bent pipe 11, and limit the adjusted sling 23, so that the bent pipe 11 is kept in a horizontal state, and the bent pipe 11 is convenient to disassemble and assemble.
As shown in fig. 1-3, the movement and counterweight assembly includes a base, a roller skate 35, and a counterweight 36 for moving the elbow 11 and stabilizing the hoist assembly. Specifically, as shown in fig. 2, the base includes two legs 31 and a telescopic hydraulic stop lever 32; the two supporting legs 31 are hollow steel rods, and one ends of the two supporting legs 31 are hinged together, so that the two supporting legs 31 can open and close by taking a hinge point as a center; the two ends of the telescopic hydraulic limiting rod 32 are respectively fixed on opposite side surfaces of the two supporting legs 31, which are close to the hinge point end, and the telescopic hydraulic limiting rod 32 has a telescopic function and is fixed in length through a limiting bolt and is used for connecting and restraining the two supporting legs 31 and fixing the opening angle of the two supporting legs 31. The skidding 35 is used for removing this dimension and examines the instrument, and the skidding 35 is installed at the lower surface of base, and the preferential, and the skidding 35 uses independent spacing universal wheel, locks through the stopper, and the universal wheel is evenly installed at the lower surface of two landing legs 31 and scalable hydraulic stop lever 32, and 5 universal wheels have evenly been arranged along the axial to every landing leg 31, and 1 universal wheel has been arranged in the centre of scalable hydraulic stop lever 32, in case hoist and mount of return bend 11 or dismantlement are accomplished, and 1 or 2 dimension inspection personnel promote this dimension and examine the instrument and freely move to the assigned position, on the basis of using manpower sparingly, guarantee this dimension and examine the instrument and remove smoothly. The balancing weight 36 is composed of one or more steel blocks with mass, is arranged on the hinge point of the two supporting legs 31 and the telescopic hydraulic limiting rod 32, applies pressure to one end of the base by utilizing the self weight, and ensures the stability of the whole structure of the maintenance tool according to the lever principle; the weight of the balancing weight 36 is determined according to the weight of the bent pipe 11, and the balancing weights 36 with different weights are matched through calculation for the bent pipes 11 with different weights.
As shown in fig. 1, the hydraulic support assembly is used to adjust the height of the boom 21 and stabilize the boom 21. The hydraulic support assembly includes a main support bar 41, two auxiliary support bars 42 and a hydraulic support bar 43. The main supporting rod 41 is a hollow steel rod, is longitudinally supported between the suspension arm 21 and the base, is hinged with the suspension arm 21 and the base respectively, and is used for supporting and restraining the suspension arm 21; specifically, the rear end portion of the boom 21 is provided with an ear plate on the lower surface of the end remote from the front end portion, and one end of the main support bar 41 is hinged to the boom 21 through the ear plate, so that the main support bar 41 is rotated around the boom 21; the other end of the main support rod 41 is hinged to the telescopic hydraulic limit rod 32 through an ear plate arranged on the telescopic hydraulic limit rod 32, so that the main support rod 41 rotates around the telescopic hydraulic limit rod 32. The two auxiliary supporting rods 42 are hollow steel rods, and one end of each auxiliary supporting rod 42 is hinged to one supporting leg 31, namely the two auxiliary supporting rods 42 are respectively hinged to different supporting legs 31; the other end of each auxiliary supporting rod 42 is hinged to the middle of the main supporting rod 41, and the auxiliary supporting rods 42 pull the main supporting rod 41 to limit the main supporting rod 41. The two ends of the hydraulic support rod 43 are respectively hinged to the telescopic hydraulic limiting rod 32 and the suspension arm 21, and are used for supporting the suspension arm 21 and adjusting the height of the suspension arm 21, and specifically, one end of the hydraulic support rod 43 is hinged to the lower surface of the rear end part of the suspension arm 21 through an ear plate and is close to the front end part; the other end of the hydraulic support rod 43 is hinged to the upper surface of the telescopic hydraulic limit rod 32 through an ear plate; the length of the hydraulic support bar 43 is fixed by a limit plug, so that the suspension arm 21 is kept horizontal and stable.
In this embodiment, as shown in fig. 3, in order to prevent the support legs 31 from shaking during the moving process, the opposite sides of the two support legs 31 far away from the hinge point end are connected with first detachable support rods 34, the first detachable support rods 34 are telescopic steel pipes, the first detachable support rods 34 and the two support legs 31 form a stable triangle, the length of the first detachable support rods 34 is fixed through a limiting bolt, so that the two support legs 31 are ensured to be stressed uniformly, the opening angles of the two support legs 31 are the same, the opening angles of the two support legs 31 are unchanged, and the moving is stable; as shown in fig. 1, in order to prevent the boom 21 from shaking during the moving process, a second detachable support rod 44 is hinged between the front end portion of the boom 21 and the first detachable support rod 34, the second detachable support rod 44 is a telescopic steel tube, the length of the second detachable support rod 44 is fixed through a limiting bolt, and during the moving process, the second detachable support rod 44 supports the front end portion of the boom 21, so that the boom 21 is stable. The first detachable support rod 34 and the second detachable support rod 44 are both movably connected to the maintenance tool, and are flexibly assembled and disassembled according to actual needs.
The application method of the novel aluminum oxide dissolution device 180-degree bent pipe dimension inspection tool comprises the following specific steps:
Step one: bent pipe 11 to be inspected on hoisting sleeve
As shown in fig. 2, the weight of the balancing weight 36 is calculated and matched according to the weight of the bent pipe 11 to be inspected, and the prepared balancing weight 36 is mounted on the hinge point of the two supporting legs 31 and the telescopic hydraulic limiting rod 32. Combining the supporting legs 31, facilitating the entry and exit of the maintenance tool, moving the maintenance tool to the position of the bent pipe 11 to be maintained, enabling the supporting legs 31 to be positioned right below the bent pipe 11 and enabling the sling 23 to be positioned above the bent pipe 11; three slings 23 are respectively hooked on three lifting lugs 12 on the upper surface of the bent pipe 11, the suspension arm 21 is adjusted to a specified height through the hydraulic support component and the lifting component, limiting bolts are respectively arranged on the suspension arm 21 and the hydraulic support rod 43 to keep the height of the suspension arm 21 fixed, and the bent pipe 11 is also suspended at the lower end of the suspension arm 21 along with the lifting of the suspension arm 21 and is separated from the sleeve.
Step two: movable elbow 11
As shown in fig. 3, the two legs 31 are separated so that the two legs 31 form an angle of 60 °; the first detachable support rod 34 is arranged between the two supporting legs 31, the second detachable support rod 44 is arranged between the first detachable support rod 34 and the suspension arm 21, and the lengths of the first detachable support rod 34 and the second detachable support rod 44 are fixed through the limiting bolt, so that the stability of the maintenance tool is enhanced. The 2 workers give thrust to the main supporting rod 41 or the hydraulic supporting rod 43 to push the maintenance tool to move to a specified position.
Step three: disassembling the bent pipe 11 to the maintenance platform
Removing the limiting bolt on the maintenance tool, and removing the second detachable support rod 44 and the first detachable support rod 34; the opening angle of the two leg legs 31 is increased, and the positions are located outside the two sides of the bent pipe 11. And adjusting the hoisting assembly and the hydraulic supporting assembly, lowering the height of the suspension arm 21, lowering the bent pipe 11 along with the suspension arm 21, finally enabling the bent pipe 11 to be stably placed at a designated position, removing the sling 23 on the bent pipe 11, and performing maintenance inspection on the bent pipe 11.
Step four: returning the bent pipe 11 after maintenance to the sleeve
And according to the first step, the second step and the third step, hoisting the bent pipe 11 after maintenance and inspection again, moving the bent pipe to the sleeve pipe to be butted, adjusting the bent pipe to the specified butting height, keeping the balance of the bent pipe 11, installing bolts, and finishing the butt joint installation of the bent pipe 11 and the sleeve pipe. And removing the sling 23 on the bent pipe 11, moving the maintenance tool to the next bent pipe 11 to be maintained, and carrying out assembly, disassembly and movement on the next bent pipe 11.
Example 2
As shown in fig. 2, the difference between the present embodiment and embodiment 1 is limited to the base in the moving and counterweight assembly further comprises a connecting rod 33, and the two legs 31 are hinged by the connecting rod 33, specifically, two ear plates are arranged side by side on the side surface of the connecting rod 33, and the two legs 31 are respectively hinged to the connecting rod 33 by the ear plates, so that the two legs 31 rotate around the connecting rod 33, and the included angle between the two legs 31 is changed; the two support legs 31, the connecting rod 33 and the telescopic hydraulic limit rod 32 form a quadrilateral, so that the base is more stable. The balancing weight 36 is mounted on the connecting rod 33 and the telescopic hydraulic stop lever 32, so that the balancing weight 36 is stably placed on the base.
It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (9)
1. The novel aluminum oxide dissolution device 180-degree bent pipe maintenance tool is characterized by comprising a hoisting assembly, a moving and counterweight assembly and a hydraulic support assembly; wherein,
The hoisting assembly comprises a suspension arm, a sling and a lock turnbuckle arranged on the sling; the suspension arm comprises a front end part and a rear end part, the rear end part is a hollow steel rod, the hollow steel rod is sleeved on the outer wall of the front end part, and the front end part generates axial telescopic displacement along the inner wall of the rear end part; three slings are fixed on the lower surface of the front end part and are respectively hooked with three lifting lugs on the upper surface of the bent pipe;
The moving and counterweight assembly comprises a base, a roller skate and a counterweight block; the base comprises two supporting legs and a telescopic hydraulic limiting rod, one ends of the two supporting legs are hinged to one point, the two supporting legs are opened and closed to rotate by taking a hinged point as the center, and two ends of the telescopic hydraulic limiting rod are respectively fixed on the two supporting legs; the roller skate is arranged on the lower surface of the base; the balancing weight is arranged on the supporting leg and the telescopic hydraulic limiting rod;
The hydraulic support assembly comprises a main support rod, an auxiliary support rod and a hydraulic support rod; the two ends of the main supporting rod are respectively hinged to the rear end part of the suspension arm and the telescopic hydraulic limiting rod; two ends of the auxiliary supporting rod are respectively hinged to the main supporting rod and the supporting legs; two ends of the hydraulic support rod are respectively hinged to the rear end parts of the telescopic hydraulic limiting rod and the suspension arm;
The length of the suspension arm, the telescopic hydraulic limiting rod or the hydraulic supporting rod is fixed through a limiting bolt.
2. The tool for inspecting a 180-degree bent pipe of a novel alumina digestion device according to claim 1, wherein the base further comprises a connecting rod, the two supporting legs are hinged through the connecting rod, and the two supporting legs, the connecting rod and the telescopic hydraulic limiting rod form a quadrilateral.
3. The tool for inspecting a 180-degree bent pipe of a novel alumina digestion device according to claim 1, wherein a first detachable support rod is arranged on the two support legs far away from the hinge point end, the first detachable support rod is supported between the two support legs, the first detachable support rod is a telescopic steel pipe, and the length of the first detachable support rod is fixed through a limiting bolt.
4. The tool for inspecting a 180-degree bent pipe of a novel alumina digestion device according to claim 3, wherein a second detachable support rod is hinged between the front end part of the suspension arm and the first detachable support rod, the second detachable support rod is a telescopic steel pipe, and the length of the second detachable support rod is fixed through a limiting bolt.
5. The tool for inspecting a 180-degree bent pipe of a novel alumina digestion device according to claim 1, wherein the wheel slide is a universal wheel, and the universal wheel is locked by a limiter.
6. The tool for inspecting 180-degree bent pipe of the novel alumina digestion device according to claim 1, wherein 5 wheel slides are uniformly arranged on the lower surface of each supporting leg, and 1 wheel slide is arranged on the lower surface of the telescopic hydraulic limiting rod.
7. The tool for inspecting a 180-degree bent pipe of a novel alumina digestion device according to claim 1, wherein the sling is made of a steel wire rope.
8. The tool for inspecting a 180-degree bend of a novel alumina digestion device according to claim 1, wherein the front end portion is a hollow steel rod.
9. The tool for inspecting a 180-degree bent pipe of a novel alumina digestion device according to claim 1, wherein the balancing weight is composed of at least one steel block with mass; the weight of the balancing weight is determined according to the weight of the bent pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323078823.XU CN221253694U (en) | 2023-11-15 | 2023-11-15 | Novel tool for inspecting 180-degree bent pipe of alumina dissolution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323078823.XU CN221253694U (en) | 2023-11-15 | 2023-11-15 | Novel tool for inspecting 180-degree bent pipe of alumina dissolution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221253694U true CN221253694U (en) | 2024-07-02 |
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ID=91628707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323078823.XU Active CN221253694U (en) | 2023-11-15 | 2023-11-15 | Novel tool for inspecting 180-degree bent pipe of alumina dissolution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221253694U (en) |
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2023
- 2023-11-15 CN CN202323078823.XU patent/CN221253694U/en active Active
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