CN110451441B - Folding suspension cage for operation of inner hole in limited space - Google Patents
Folding suspension cage for operation of inner hole in limited space Download PDFInfo
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- CN110451441B CN110451441B CN201810432531.6A CN201810432531A CN110451441B CN 110451441 B CN110451441 B CN 110451441B CN 201810432531 A CN201810432531 A CN 201810432531A CN 110451441 B CN110451441 B CN 110451441B
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- side plate
- connecting piece
- connecting rod
- limited space
- folding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Treating Waste Gases (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention provides a hole operation folding suspension cage in a limited space, which comprises a first side plate and a second side plate which are arranged in parallel, wherein the first side plate and the second side plate are both of a frame structure and are connected through a plurality of connecting rods distributed in parallel; the bottom plate is connected to the connecting rod located at the lowest position. The invention has simple structure and novel design, can conveniently get in and out of the manhole door of the absorption tower in a suspension cage folding mode, has simple and convenient assembly, greatly shortens the maintenance operation time, has firm and reliable connection mode and ensures the safety of maintenance operation personnel.
Description
Technical Field
The invention relates to the field of maintenance operation of holes in a limited space, in particular to a folding suspension cage for operation of holes in the limited space.
Background
The dry circulating fluidized bed desulfurization process is widely applied in the field of flue gas desulfurization of iron and steel enterprises, and the circulating fluidized bed desulfurization process utilizes the circulating utilization of desulfurizer slaked lime powder in a cloth bag-ash bucket-absorption tower-cloth bag system to react with sulfur dioxide in flue gas to generate desulfurized ash dust.
One of the most important equipment in a circulating fluidized bed process is an absorber column system. Untreated flue gas exiting the boiler enters the bottom of the absorber tower. The bottom of the absorption tower is provided with a Venturi device, the speed of the flue gas is accelerated after the flue gas flows through the Venturi device, the flue gas is mixed with very fine absorbent powder, and the gas and particles are violently rubbed to form a fluidized bed. Under the condition of spraying uniform water mist to reduce the temperature of smoke, the absorbent reacts with sulfur dioxide in the smoke, the smoke carrying a large amount of solid particles after desulfurization is discharged from the top of the absorption tower and enters a recirculation dust remover, and the separated particles return to the absorption tower through an ash hopper and a material recirculation chute.
The venturi device in the dry desulfurization absorption tower system comprises 7 venturi tubes, and when most enterprises use the circulating fluidized bed desulfurization technique at present, the wearing condition of the venturi tubes of the absorption tower often appears, and the thickness measurement needs to be regularly carried out on the venturi tube bodies in order to ensure that the wearing condition of the venturi tubes is in a controllable range. If the venturi is seriously worn, the replacement and patching are required. The risk that personnel fall when entering the operation in the venturi tube can be caused because the venturi tube is higher from the bottom of the absorption tower. In order to ensure the safety and the flexibility of the operators during operation, the operators need to hang in the Venturi tube by using a suspension cage, and the operators stand in the suspension cage for operation. Because of the size limitation of the manhole door of the absorption tower, the cage suitable for operation in the Venturi tube has overlarge volume and cannot enter.
Disclosure of Invention
The invention aims to solve the technical problem of providing a folding suspension cage for hole operation in a limited space, so as to overcome the defects in the prior art.
In order to achieve the purpose, the invention provides a folding suspension cage for hole operation in a limited space, which comprises a first side plate and a second side plate which are arranged in parallel, wherein the first side plate and the second side plate are both in a frame structure, the first side plate and the second side plate are connected through a plurality of connecting rods which are distributed in parallel, one end of each connecting rod is provided with a first connecting piece, the other end of each connecting rod is provided with a second connecting piece, the first connecting piece and the second connecting piece are in the same structure, each first connecting piece is connected to the first side plate through at least two first bolts, and each second connecting piece is connected to the second side plate through at least two second bolts; the bottom plate is connected to the connecting rod located at the lowest position.
Preferably, the first connecting piece and/or the second connecting piece comprise a body, two ends of the body are respectively provided with a connecting part, and each connecting part is provided with a bolt hole.
Preferably, one end of the connecting rod is connected to the body of the first connecting piece, and the other end of the connecting rod is connected to the body of the second connecting piece.
Preferably, one end of the connecting rod is welded on the first connecting piece, and the other end of the connecting rod is welded on the second connecting piece.
Preferably, the bottom plate is in a grid shape.
Preferably, a first blocking rod is arranged on the first side plate at a position close to the top, and two ends of the first blocking rod are respectively welded on two adjacent edges of the first side plate; and a second stop lever is arranged on the second side plate close to the top, and two ends of the second stop lever are respectively welded on two adjacent edges of the second side plate.
As mentioned above, the folding suspension cage for the operation of the inner hole in the limited space has the following beneficial effects: the invention has simple structure and novel design, when the absorption tower manhole door is accessed, a first bolt is reserved on the first connecting piece to be connected with the first side plate, a second bolt is reserved on the second connecting piece to be connected with the second side plate, and then the suspension cage is folded to facilitate the access of the absorption tower manhole door.
Drawings
Fig. 1 is a schematic perspective view of a cage.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural view of the first side plate.
Fig. 4 is a schematic structural view of the second side plate.
Fig. 5 is a top view of fig. 2.
Fig. 6 is a structural diagram of the first connecting sheet or the second connecting sheet.
Description of the element reference numerals
1 first side plate
11 first stop lever
110 first fixing hole
2 second side plate
21 second stop lever
210 second fixing hole
3 connecting rod
4 first connecting piece
41 first bolt
42 second bolt
43 body
44 connecting part
441 bolt hole
5 second connecting sheet
6 bottom plate
61 reinforcing bar
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes.
As shown in fig. 1 to 6, the invention provides a folding suspension cage for hole operation in a limited space, which comprises a first side plate 1 and a second side plate 2 which are arranged in parallel, wherein the first side plate 1 and the second side plate 2 are both in a frame structure. The first side plate 1 and the second side plate 2 are connected through a plurality of connecting rods 3 which are distributed in parallel, one end of each connecting rod 3 is provided with a first connecting piece 4, the other end of each connecting rod 3 is provided with a second connecting piece 5, the first connecting pieces 4 and the second connecting pieces 5 are identical in structure, each first connecting piece 4 is connected to the first side plate 1 through at least two first bolts 41, and each second connecting piece 5 is connected to the second side plate 2 through at least two second bolts 42. The folding cage of hole operation in confined space still includes bottom plate 6, bottom plate 6 is connected on being located connecting rod 3 of below, during the operation, hangs folding cage, and operating personnel stands on bottom plate 6 and can the operation. When the folding suspension cage enters or exits the manhole of the absorption tower, a first bolt 41 is reserved on each first connecting sheet 4 to be connected with the first side plate 1, the first connecting sheets 4 and the first side plates 1 form a hinged relation, a second bolt 42 is reserved on each second connecting sheet 5 to be connected with the second side plates 2, the second connecting sheets 5 and the second side plates 2 form a hinged relation, acting force is applied from two sides of the first side plates 1 and the second side plates 2 at the moment, the connecting rods 3 rotate, so that the first side plates 1 and the second side plates 2 move oppositely, the volume of the whole folding suspension cage is reduced, and the folding suspension cage can enter or exit the manhole of the absorption tower conveniently; if need use folding cage operation, expand folding cage to connect all bolt holes on every first connection piece 4 through first bolt 41 on the first curb plate 1, all bolt holes on every second connection piece 5 are connected through second bolt 42 on the second curb plate 2, can guarantee that the cage can not become flexible, and the operating personnel of being convenient for stands in the cage operation. In a preferred embodiment, the lengths of the first side plate 1 and the second side plate 2 are both 5 meters, the widths of the first side plate and the second side plate are both 0.6 meter, the bottom plate is square, the side length of the bottom plate is 0.6 meter, the length of the connecting rod 3 is 0.6 meter, 6 connecting rods are arranged, and 3 connecting rods are respectively arranged on two sides of the first side plate 1 and are respectively connected to the second side plate 2.
As shown in fig. 6, preferably, the first connecting piece 4 and/or the second connecting piece 5 includes a body 43, two ends of the body 43 are respectively provided with a connecting portion 44, each connecting portion 44 is provided with a bolt hole 441, and each bolt hole 441 is connected with a corresponding bolt. Preferably, one end of the connecting rod 3 is connected to the body 43 of the first connecting piece 4, and the other end is connected to the body 43 of the second connecting piece 5. Preferably, one end of the connecting rod 3 is welded to the first connecting plate 4, and the other end is welded to the second connecting plate 5.
As shown in fig. 5, preferably, the bottom plate 6 is in a grid shape, the two connecting rods 3 at the lowest layer can be directly welded with the reinforcing rods 61, the bottom plate 6 rests on the reinforcing rods 61, and two sides of the bottom plate 6 are welded on the connecting rods 3.
As shown in fig. 3 and 4, preferably, a first blocking rod 11 is disposed on the first side plate 1 at a position close to the top, two ends of the first blocking rod 11 are respectively welded to two adjacent sides of the first side plate 1, a right-angled triangular first fixing hole 110 is formed between the first blocking rod 11 and the two adjacent sides of the first side plate 1, two first blocking rods 11 are provided, and correspondingly, two first fixing holes 110 are provided; the position that is close to the top on the second curb plate 2 is equipped with second pin 21, the both ends of second pin 21 weld respectively two adjacent edges of second curb plate 2, form right-angled triangle's second fixed orifices 210 between two adjacent edges of second pin 21 and second curb plate 2, second pin 21 sets up two, correspondingly, first fixed orifices 210 sets up two, through two
The steel pipe passes through the corresponding first fixing hole 110 and the second fixing hole 210, so that the cage is erected at the mouth of the venturi tube, and the first stop lever 11 and the second stop lever 21 are used for preventing the cage from shaking.
The invention has been used in the Venturi maintenance operation of the Bao steel four-stage desulfurization fixed-maintenance absorption tower, has better effect to the present, can ensure the safety of maintenance operators, shorten the maintenance operation time, improve the construction efficiency and save the construction cost. Under the environment with increased national requirements for environmental protection, the purposes of reducing the downtime and reducing the pollutant discharge are achieved.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A folding suspension cage for operation of inner hole holes in a limited space comprises a first side plate (1) and a second side plate (2) which are arranged in parallel, wherein the first side plate (1) and the second side plate (2) are of a frame structure, and the folding suspension cage is characterized in that the first side plate (1) and the second side plate (2) are connected through a plurality of connecting rods (3) which are distributed in parallel, one end of each connecting rod (3) is provided with a first connecting piece (4), the other end of each connecting rod is provided with a second connecting piece (5), the first connecting piece (4) and the second connecting piece (5) are of the same structure, each first connecting piece (4) is connected onto the first side plate (1) through at least two first bolts (41), and each second connecting piece (5) is connected onto the second side plate (2) through at least two second bolts (42); the connecting rod mechanism further comprises a bottom plate (6), wherein the bottom plate (6) is connected to the connecting rod (3) located at the lowest part; a first stop lever (11) is arranged on the first side plate (1) and close to the top, two ends of the first stop lever (11) are respectively welded on two adjacent edges of the first side plate (1), and a right-angled triangular first fixing hole (110) is formed between the first stop lever (11) and the two adjacent edges of the first side plate (1); the position that is close to the top on second curb plate (2) is equipped with second pin (21), the both ends of second pin (21) weld respectively two adjacent edges of second curb plate (2), form right-angled triangle's second fixed orifices (210) between two adjacent edges of second pin (21) and second curb plate (2).
2. The folding cage for the operation of the inner hole in the limited space of claim 1, is characterized in that: the first connecting piece (4) and/or the second connecting piece (5) comprise a body (43), two ends of the body (43) are respectively provided with a connecting portion (44), and each connecting portion (44) is provided with a bolt hole (441).
3. The folding cage for the operation of the inner hole in the limited space as claimed in claim 2, is characterized in that: one end of the connecting rod (3) is connected to the body (43) of the first connecting piece (4), and the other end of the connecting rod is connected to the body (43) of the second connecting piece (5).
4. The folding cage for the operation of the inner hole in the limited space of claim 1, is characterized in that: one end of the connecting rod (3) is welded on the first connecting sheet (4), and the other end of the connecting rod is welded on the second connecting sheet (5).
5. The folding cage for the operation of the inner hole in the limited space of claim 1, is characterized in that: the bottom plate (6) is in a grid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810432531.6A CN110451441B (en) | 2018-05-08 | 2018-05-08 | Folding suspension cage for operation of inner hole in limited space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810432531.6A CN110451441B (en) | 2018-05-08 | 2018-05-08 | Folding suspension cage for operation of inner hole in limited space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110451441A CN110451441A (en) | 2019-11-15 |
| CN110451441B true CN110451441B (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810432531.6A Active CN110451441B (en) | 2018-05-08 | 2018-05-08 | Folding suspension cage for operation of inner hole in limited space |
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| Country | Link |
|---|---|
| CN (1) | CN110451441B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001159233A (en) * | 1999-12-02 | 2001-06-12 | Hitachi Building Systems Co Ltd | Working scaffold device for elevator |
| CN202773671U (en) * | 2012-09-27 | 2013-03-13 | 江苏中恒宠物用品股份有限公司 | Ejector rod type dual-folding bag support |
| CN105692403A (en) * | 2014-12-10 | 2016-06-22 | 通力股份公司 | Elevator car frame, a method for installing an elevator car frame, and an elevator |
| CN205906372U (en) * | 2016-07-27 | 2017-01-25 | 佛山市高明金荣华乐金属制品有限公司 | Novel collapsible box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0543162A (en) * | 1991-08-20 | 1993-02-23 | Hitachi Building Syst Eng & Service Co Ltd | Rope replacement device for elevator |
-
2018
- 2018-05-08 CN CN201810432531.6A patent/CN110451441B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001159233A (en) * | 1999-12-02 | 2001-06-12 | Hitachi Building Systems Co Ltd | Working scaffold device for elevator |
| CN202773671U (en) * | 2012-09-27 | 2013-03-13 | 江苏中恒宠物用品股份有限公司 | Ejector rod type dual-folding bag support |
| CN105692403A (en) * | 2014-12-10 | 2016-06-22 | 通力股份公司 | Elevator car frame, a method for installing an elevator car frame, and an elevator |
| CN205906372U (en) * | 2016-07-27 | 2017-01-25 | 佛山市高明金荣华乐金属制品有限公司 | Novel collapsible box |
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| Publication number | Publication date |
|---|---|
| CN110451441A (en) | 2019-11-15 |
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