CN211895670U

CN211895670U - Chemical synthesis reactor grid plate hoisting device

Info

Publication number: CN211895670U
Application number: CN202020385825.0U
Authority: CN
Inventors: 彭晓军; 尹红峰
Original assignee: Chongqing Jinwei Industrial Co ltd
Current assignee: Chongqing Jinwei Industrial Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-11-10
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a grid plate hoisting device of a chemical synthesis reactor, which relates to a hoisting frame, and comprises a hoisting arm and a fixing frame arranged at the lower end of the hoisting arm; a plurality of lifting ropes are hung on the fixing frame; the lower end of the lifting rope is also provided with a detachable lower supporting shaft. The utility model discloses enable the grid tray only need artifically in whole dismantlement process to grid tray set screw unscrew can, and because the hoist with the reason that the sieve hoisted, make the grid tray can not spill over at the intraductal catalyst of unscrewing in-process reaction, not only make the environment in the reactor obtain guaranteeing, make people's dismantlement safer, and make the grid tray in succession dismantle the circulation condition that in-process people can in time observe the catalyst.

Description

Chemical synthesis reactor grid plate hoisting device

Technical Field

The utility model relates to a gallows particularly, relates to a chemical synthesis reactor grid plate hoist device.

Background

A grid plate is arranged in a common tubular reactor, a plurality of reaction tubes are arranged on the grid plate in parallel, catalysts are filled in the reaction tubes, during specific reaction, raw gas enters the tubular reactor and reacts under the action of the catalysts in the reaction tubes, and after the synthesis reaction of the tubular reactor is finished, the grid plate at the bottom of the tubular reactor needs to be disassembled, so that the residual catalysts in the reaction tubes are poured out.

When the existing grid plate is disassembled, workers firstly enter the reactor through a manhole on the tubular reactor, and then the grid plate is disassembled by adopting a disassembling tool; in the process of disassembling the grid plate, the lower end of the reaction tube is gradually opened due to the looseness of the grid plate, and at the moment, the catalyst in the reaction tube can quickly overflow to cause dust to be distributed in the reactor; meanwhile, in the process of disassembling the catalyst by workers, the safety of the workers is difficult to guarantee due to the flowing of the catalyst, and the workers cannot accurately observe the circulation condition of the catalyst.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chemical synthesis reactor grid plate hoist device makes the grid tray can adopt the ground jack to hoist it when dismantling, can not only effectively avoid the intraductal catalyst of reaction to spill over, prevents that the workman from taking place the incident, and makes the dismantlement of grid tray more convenient, makes the workman's number of grid tray dismantlement reduce to practice thrift the cost of labor greatly, improved labor efficiency.

For realizing the purpose of the utility model, the technical proposal adopted is that: a grid plate hoisting device of a chemical synthesis reactor comprises a crane boom and a fixing frame arranged at the lower end of the crane boom; a plurality of lifting ropes are hung on the fixing frame; the lower end of the lifting rope is also provided with a detachable lower supporting shaft.

Furthermore, the lifting rope comprises a main lifting arm and an auxiliary lifting arm, the middle parts of the main lifting arm and the auxiliary lifting arm are fixed together, the upper end of the main lifting arm is hung on the fixing frame, and a detachable upper supporting shaft is arranged at the upper end of the auxiliary lifting arm; the lower ends of the main suspension arm and the auxiliary suspension arm are aligned, and the lower support shafts are inserted into the lower ends of the main suspension arm and the auxiliary suspension arm together.

Furthermore, lifting lugs are arranged at two ends of the main suspension arm and the auxiliary suspension arm; the upper support shaft is inserted into the lifting lug at the upper end of the auxiliary suspension arm, and the lower support shaft is inserted into the lifting lug at the lower end of the main suspension arm and the lifting lug at the lower end of the auxiliary suspension arm together.

Furthermore, the upper end of the main suspension arm is longer than the upper end of the auxiliary suspension arm.

Furthermore, the middle parts of the main suspension arm and the auxiliary suspension arm are sleeved with a sleeve pipe together, and the sleeve pipe, the main suspension arm and the auxiliary suspension arm are compressed and fixed together.

Furthermore, the crane boom comprises a plurality of crane chains hinged to the upper surface of the fixed frame, and the plurality of crane chains are provided with hoisting rings.

Furthermore, the fixing frame is in an equilateral triangle shape.

Furthermore, reinforcing ribs are connected and installed between two adjacent sides of the fixing frame.

Furthermore, the lifting ropes are three and are evenly distributed at intervals along the circumferential direction of the center of the fixing frame.

The utility model has the advantages that,

the utility model discloses when needs are dismantled the grid tray, can be after opening the reactor top cap, earlier with main davit and vice davit lower extreme insert jointly the lower support shaft of establishing and take off, then stretch into the lifting rope to the below of grid tray through the hole for hoist, insert jointly at main davit and vice davit lower extreme and establish the lower back shaft, establish the back shaft in the lug interpolation of vice davit upper end, adopt the ground jack to hoist the grid tray at last, make the workman become flexible the back that finishes to the grid tray, the ground jack is put down the grid tray downwards can.

The utility model discloses enable the grid tray only need artifically in whole dismantlement process to grid tray set screw unscrew can, and because the hoist with the reason that the sieve hoisted, make the grid tray can not spill over at the intraductal catalyst of unscrewing in-process reaction, not only make the environment in the reactor obtain guaranteeing, make people's dismantlement safer, and make the grid tray in succession dismantle the circulation condition that in-process people can in time observe the catalyst.

Drawings

FIG. 1 is a structural diagram of a grid plate hoisting device of a chemical synthesis reactor provided by the utility model;

fig. 2 is a structural view of the fixing frame of fig. 1.

Reference numbers and corresponding part names in the drawings:

1. the device comprises a crane boom, 2, a fixing frame, 3, a lifting rope, 4, a lower supporting shaft, 5, an upper supporting shaft, 6 and a reinforcing rib;

11. hoisting chain, 12, hoisting ring;

31. main boom 32, auxiliary boom 33, lifting lug 34 and casing pipe.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.

Fig. 1 and fig. 2 show a lifting device for a grid plate of a chemical synthesis reactor provided by the present invention, which comprises a crane boom 1 and a fixing frame 2 installed at the lower end of the crane boom 1; a plurality of lifting ropes 3 are hung on the fixing frame 2; the lower end of the lifting rope 3 is also provided with a detachable lower supporting shaft 4.

The crane boom 1 is used for connecting a crane, and the crane connected with the crane boom 1 is mainly a hoist, a crane and the like; the lower end of the crane boom 1 is hinged with the fixed frame 2, so that the crane boom 1 and the fixed frame 2 can swing relatively; the upper ends of the lifting ropes 3 are hinged with the fixing frame 2, and the fixing frame 2 is mainly used for dispersing the lifting ropes 3, so that the lifting ropes 3 are effectively prevented from being concentrated due to self gravity; simultaneously, through installation mount 2, make lifting rope 3 hang perpendicularly and establish on mount 2, effective lifting rope 3 is in reactor internal inclination when hoisting the grid tray, effectively prevents that grid tray or reactor inner wall from receiving mechanical damage, reduces the maintenance number of times of reactor, has reduced required manpower and material resources of reactor maintenance.

The lower support shaft 4 can be rectangular or cylindrical, and the lower support shaft 4 can be freely detached from the lower end of the lifting rope 3; through back shaft 4 under the lower extreme installation at lifting rope 3, make lifting rope 3 hang the grid tray when getting, back shaft 4 can carry on spacingly to lifting rope 3's lower extreme, makes lifting rope 3 when being hoisted, and back shaft 4 can support the grid tray, makes lifting rope 3 can effectively prevent that the grid tray from receiving mechanical damage when hoisting the grid tray to effectively improve the life of grid tray, reduce the number of times that the grid tray overhauld.

The lifting rope 3 comprises a main lifting arm 31 and an auxiliary lifting arm 32, the middle parts of the main lifting arm 31 and the auxiliary lifting arm 32 are fixed together, the upper end of the main lifting arm 31 is hung on the fixed frame 2, and the upper end of the auxiliary lifting arm 32 is provided with a detachable upper supporting shaft 5; the lower ends of the main boom 31 and the auxiliary boom 32 are aligned, and the lower support shaft 4 is inserted into the lower ends of the main boom 31 and the auxiliary boom 32; the main boom 31 and the auxiliary boom 32 are both formed by multi-strand steel ropes, and the middle parts of the main boom 31 and the auxiliary boom 32 are fixed together, so that the main boom 31 and the auxiliary boom 32 are effectively prevented from being separated, and the auxiliary boom 32 cannot directly fall off from the main boom 31 after the fixing frame 2 lifts the main boom 31.

The cross section of the upper supporting shaft 5 is rectangular or circular, and the upper supporting shaft 5 can be freely installed or detached at the upper end of the auxiliary suspension arm 32; through the upper end installation back shaft 5 at auxiliary boom 32, make the grid plate at the transfer in-process, when main boom 31's upper end fracture, auxiliary boom 32 can effectively be spacing to last back shaft 5 at auxiliary boom 32 upper end, makes the grid plate can not continue to drop downwards again after dropping to the certain distance downwards, not only makes workman's personal safety obtain the guarantee, and effectively prevents the grid plate because of dropping for receiving the destruction.

Through the lower extreme parallel and level that makes main davit 31 and auxiliary boom 32 to make back on main davit 31 and auxiliary boom 32 are installed jointly to back down support shaft 4, down support shaft 4 can keep the level, make down support shaft 4 when supporting the grid plate, the power that down support shaft 4 bore is more even, whether make main davit 31 upper end fracture, down support shaft 4 homoenergetic is stable supports the grid plate, make the grid plate more steady by the transfer in-process, prevent that the grid plate from receiving the destruction.

Lifting lugs 33 are arranged at two ends of the main suspension arm 31 and the auxiliary suspension arm 32; the upper support shaft 5 is inserted into the lifting eye 33 at the upper end of the auxiliary boom 32, and the lower support shaft 4 is inserted into the lifting eye 33 at the lower end of the main boom 31 and the lifting eye 33 at the lower end of the auxiliary boom 32. The lifting lugs 33 at the two ends of the main suspension arm 31 and the lifting lugs 33 at the two ends of the auxiliary suspension arm 32 are respectively fixed by bending the steel ropes and die-casting by adopting a sleeve 34, so that the connection among the lifting lugs 33, the main suspension arm 31 and the auxiliary suspension arm 32 is firmer, and the forming and the installation of the lifting lugs 33 are more convenient; meanwhile, because the lifting lug 33 is in a water-drop shape, after the upper supporting shaft 5 or the lower supporting shaft 4 is inserted into the lifting lug 33, the friction between the lifting lug 33 and the upper supporting shaft 5 or the lower supporting shaft 4 is larger, so that after the upper supporting shaft 5 or the lower supporting shaft 4 is inserted into the lifting lug 33, the upper supporting shaft 5 or the lower supporting shaft 4 cannot directly fall off from the lifting lug 33, and the installation of the upper supporting shaft 5 and the lower supporting shaft 4 is more stable.

The upper end of the main suspension arm 31 is longer than the upper end of the auxiliary suspension arm 32, so that the overall length of the main suspension arm 31 is longer than that of the auxiliary suspension arm 32, after the main suspension arm 31 lifts the grating plate, the upper support shaft 5 inserted into the lifting lug 33 at the upper end of the auxiliary suspension arm 32 is closer to the upper end of the lifting hole, the grating plate can only fall downwards for a short distance after the upper end of the main suspension arm 31 is broken, the potential energy generated by the grating plate in the downward falling process is smaller, and the auxiliary suspension arm 32 is prevented from being broken due to overlarge potential energy generated when the grating plate falls when the grating plate is lifted.

The middle parts of the main suspension arm 31 and the auxiliary suspension arm 32 are sleeved with a sleeve 34 together, and the sleeve 34, the main suspension arm 31 and the auxiliary suspension arm 32 are pressed and fixed together; the casing pipe 34 is a metal casing pipe 34, the casing pipe 34 is sleeved on the main boom 31 and the auxiliary boom 32 together, and finally the casing pipe 34 is die-cast, so that the main boom 31 and the auxiliary boom 32 are pressed and fixed, not only is the main boom 31 and the auxiliary boom 32 more convenient to fix, but also the main boom 31 and the auxiliary boom 32 are firmer.

The crane boom 1 comprises a plurality of hoisting chains 11 hinged on the upper surface of the fixed frame 2, and a hoisting ring 12 is mounted on the hoisting chains 11; the quantity of lifting chain 11 equals with lifting rope 3's quantity, and the position that lifting chain 11 is connected with mount 2 corresponds with the position that lifting rope 3 is connected with mount 2, makes the pulling force that every lifting chain 11 was applyed directly transmit for lifting rope 3 through mount 2, prevents that mount 2 from warping because of the atress is too big, has improved the life of mount 2.

The fixing frame 2 is in an equilateral triangle shape, and the triangle has stability, so that the structure of the fixing frame 2 is more stable, and the fixing frame 2 is prevented from deforming due to long-term use. Still connect between the adjacent both sides of mount 2 and install strengthening rib 6, make between the adjacent both sides of mount 2 more firm, make mount 2 more firm, improve the life of mount 2.

The number of the lifting ropes 3 is three, and the three lifting ropes 3 are uniformly distributed at intervals along the circumferential direction of the center of the fixing frame 2; when mount 2 is equilateral triangle, three lifting rope 3 is installed respectively in the three angle department of mount 2, not only makes lifting rope 3's distribution more even, and makes lifting rope 3 when transferring the grid tray, and the power that mount 2 received is more even, effectively prevents to receive mechanical damage because of the uneven grid tray slope that leads to of mount 2 atress, effectively prevents that the grid tray from transferring the in-process.

When the grid plate needs to be disassembled, after the top cover of the reactor is opened, the lower support shaft 4 which is commonly inserted at the lower ends of the main suspension arm 31 and the auxiliary suspension arm 32 is taken down, then the lifting rope 3 extends into the lower part of the grid plate through the lifting hole, the lower support shaft 4 is commonly inserted at the lower ends of the main suspension arm 31 and the auxiliary suspension arm 32, the upper support shaft 5 is inserted in the lifting lug 33 at the upper end of the auxiliary suspension arm 32, and finally the grid plate is lifted by adopting a jack, at the moment, a worker enters the reactor to loosen the fixing screws of the grid plate, after the worker loosens the grid plate, the worker withdraws from the reactor, and at the moment, the jack can downwards put down the grid.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A chemical synthesis reactor grid plate hoisting device is characterized by comprising a crane boom (1) and a fixing frame (2) arranged at the lower end of the crane boom (1); a plurality of lifting ropes (3) are hung on the fixing frame (2); the lower end of the lifting rope (3) is also provided with a detachable lower supporting shaft (4).

2. The chemical synthesis reactor grid plate hoisting device according to claim 1, wherein the number of the lifting ropes (3) is three, and the three lifting ropes (3) are uniformly arranged at intervals along the circumference of the center of the fixing frame (2).

3. The chemical synthesis reactor grid plate hoisting device according to claim 1, wherein the lifting rope (3) comprises a main hoisting arm (31) and an auxiliary hoisting arm (32), the middle parts of the main hoisting arm (31) and the auxiliary hoisting arm (32) are fixed together, the upper end of the main hoisting arm (31) is hoisted on the fixed frame (2), and the upper end of the auxiliary hoisting arm (32) is provided with a detachable upper supporting shaft (5); the lower ends of the main suspension arm (31) and the auxiliary suspension arm (32) are aligned, and the lower support shaft (4) is inserted into the lower ends of the main suspension arm (31) and the auxiliary suspension arm (32) together.

4. The chemical synthesis reactor grid plate hoisting device according to claim 3, wherein both ends of the main boom (31) and the auxiliary boom (32) are provided with lifting lugs (33); the upper supporting shaft (5) is inserted into a lifting lug (33) at the upper end of the auxiliary suspension arm (32), and the lower supporting shaft (4) is jointly inserted into the lifting lug (33) at the lower end of the main suspension arm (31) and the lifting lug (33) at the lower end of the auxiliary suspension arm (32).

5. The chemical synthesis reactor grid lifting device according to claim 3 or 4, characterized in that the upper end of the main boom (31) is longer than the upper end of the auxiliary boom (32).

6. The chemical synthesis reactor grid plate hoisting device according to claim 3 or 4, characterized in that the middle parts of the main boom (31) and the auxiliary boom (32) are sleeved with a sleeve (34) together, and the sleeve (34) is pressed and fixed together with the main boom (31) and the auxiliary boom (32).

7. The lifting device for chemical synthesis reactor grids according to claim 1, characterized in that the crane boom (1) comprises a plurality of hoisting chains (11) hinged on the upper surface of the fixed frame (2), and hoisting rings (12) are jointly mounted on the plurality of hoisting chains (11).

8. The chemical synthesis reactor grid lifting device according to claim 1, wherein the fixing frame (2) is in the shape of an equilateral triangle.

9. The chemical synthesis reactor grid plate hoisting device according to claim 8, wherein a reinforcing rib (6) is further connected and installed between two adjacent edges of the fixing frame (2).