Annular hanging bracket for replacing radiation furnace tube of industrial cylinder furnace

Abstract

The utility model provides an annular hanging bracket for replacing a radiation furnace tube of an industrial cylinder furnace, which comprises a convection furnace tube, a bearing tray hanging hoist arranged below the convection furnace tube, a plate-type lifting lug arranged below the bearing tray hanging hoist, and a bearing tray arranged on the surface of the plate-type lifting lug, a plurality of inverted-L-shaped hanging rods and horizontal connecting rods are arranged on the surface of the bearing tray, the annular track is arranged below the bearing tray, a plurality of bracelet monorail trolleys are arranged on the surface of the annular track, hoisting hoists are arranged on the sides of the bracelet monorail trolleys, slings are arranged below the hoisting hoists, and radiation furnace tubes are arranged below the slings. And the end part of the radiation furnace tube is connected with a sharp bend. According to the annular hanging bracket for replacing the radiation furnace tube of the industrial cylinder furnace, the existing manual operation mode can be replaced, the operation time can be shortened, and meanwhile the operation safety can be improved during overhauling.

Description

Technical Field

[0001] The utility model relates to the field of construction hoisting, in particular to an annular hanger for replacing radiation furnace tubes of an industrial cylindrical furnace. Background Art

[0002] The radiation furnace tubes of the industrial cylindrical furnace are evenly distributed and vertically suspended along the circumference of the furnace wall. The furnace tubes are connected into a connected operating system through upper and lower sharp bends.

[0003] Once a furnace tube burst or leak occurs, the operation must be stopped for maintenance.

[0004] If the burst or leakage point of the furnace tube is at the bottom of the furnace tube, the general remedial measure is to cut the furnace tube horizontally above the burst or leakage point and replace a section of the furnace tube for processing. Once the burst or leakage point is located above the furnace tube, the entire furnace tube must be replaced.

[0005] As for the replacement of a single whole furnace tube, since the length of a single furnace tube exceeds 10m and the diameter of the cylindrical furnace radiation chamber exceeds 6m, the replacement of the whole radiation furnace tube is a time-consuming maintenance project with high lifting risks.

[0006] The original replacement method mainly involves setting up scaffolding in the radiation room, destroying the lining of the radiation room furnace roof, welding lifting ears at multiple locations on the furnace roof, connecting and shifting the furnace tubes to the lifting holes, or repairing the entire furnace tube by welding it in sections in the air. If multiple furnace tubes are to be replaced, the furnace roof structure must be destroyed and the lifting holes must be reopened.

[0007] The above method is used to replace the furnace tube. Firstly, the maintenance time is long. Secondly, the furnace cavity is damaged or the butt weld exists in the air of the furnace tube, which brings potential safety hazards to subsequent production.

[0008] Therefore, it is necessary to provide a ring hanger for replacing the radiation furnace tube of an industrial cylindrical furnace to solve the above technical problems. Utility Model Content

[0009] The utility model provides an annular hanger for replacing radiation furnace tubes of an industrial cylindrical furnace, which solves the problem that furnace tube replacement causes long maintenance time, damages the furnace cavity or butt welds exist in the air of the furnace tube, which brings potential safety hazards to subsequent production.

[0010] In order to solve the above technical problems, the utility model provides an annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace, comprising:

[0011] A convection furnace tube, wherein a load-bearing tray hanging hoist is arranged below the convection furnace tube, a plate-type lifting lug is arranged below the load-bearing tray hanging hoist, a load-bearing tray is arranged on the surface of the plate-type lifting lug, and a plurality of inverted L-shaped hanging rods and horizontal connecting rods are respectively arranged on the surface of the load-bearing tray;

[0012] An annular track, the annular track is arranged below the carrying tray, a plurality of hand chain monorail trolleys are arranged on the surface of the annular track, a lifting hoist is arranged on the side of the hand chain monorail trolley, a sling is arranged below the lifting hoist, a radiation furnace tube is arranged below the sling, and a sharp elbow is connected to the end of the radiation furnace tube;

[0013] One side of the horizontal connecting rod is connected with a furnace pipe hanging hook.

[0014] Preferably, a hoisting hole is opened on one side of the convection furnace tube, and a furnace cavity lining is arranged on the inner wall of the convection furnace tube.

[0015] Preferably, a threaded fixing piece is provided on the surface of the horizontal connecting rod, and a single group of furnace tubes to be suspended is provided below the horizontal connecting rod.

[0016] Preferably, the load-bearing pallet comprises an upper pallet cover plate and a lower pallet cover plate, an upper and lower cover plate connecting tube is provided between the upper and lower pallet cover plates, and a plurality of upper and lower cover plate vertical ribs are welded to the surface of the upper and lower cover plate connecting tube.

[0017] Preferably, one end of the horizontal connecting rod is connected to a horizontal connecting rod box-type ear support, and fastening bolts are provided between the pallet upper cover plate, the pallet lower cover plate, the upper and lower cover plate connecting tubes and the horizontal connecting rod box-type ear support.

[0018] Preferably, an adjustment component is provided between the carrying tray and the horizontal connecting rod, the adjustment component comprises an adjustment block and a through slot, and a fixing bolt is provided inside the through slot.

[0019] Preferably, a fixing hole matched with the fixing bolt is formed on the inner wall of the carrying tray.

[0020] Compared with the related art, the annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace provided by the utility model has the following beneficial effects:

[0021] The utility model provides an annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace. The device can replace the current manual operation mode, shorten the operation time, and improve the safety of operation during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a first embodiment of an annular hanger for replacing radiation furnace tubes of an industrial cylindrical furnace provided by the utility model;

[0023] Figure 2 for Figure 1 The structural schematic diagram of the carrying tray shown;

[0024] Figure 3 for Figure 1 A schematic diagram of the component structure of the carrying tray shown;

[0025] Figure 4 The utility model provides a structural schematic diagram of a second embodiment of an annular hanger for replacing radiation furnace tubes of an industrial cylindrical furnace.

[0026] Numbers in the figure: 1. convection furnace tube, 2. lifting hole, 3. vertical hoisting hoist for load-bearing tray, 4. inverted L-shaped hanging rod, 5. sharp elbow, 6. furnace tube hanging and climbing, 7. radiation furnace tube, 8. horizontal connecting rod, 9. circular track, 10. load-bearing tray, 11. fastening bolts, 12. bracelet monorail trolley, 13. lifting hoist, 14. lifting rope, 15. threaded fixings, 16. single group of furnace tubes to be lifted, 17. furnace chamber lining, 18. upper cover plate of pallet, 19. upper and lower cover plate vertical rib plate, 20. lower cover plate of pallet, 21. upper and lower cover plate connecting tube, 22. box-type ear support of horizontal connecting rod, 23. adjustment component, 231. adjustment block, 232. through groove, 233. fixing bolt, 234. fixing hole. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0028] First embodiment

[0029] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic structural diagram of a first embodiment of an annular hanger for replacing radiation furnace tubes of an industrial cylindrical furnace provided by the utility model; Figure 2 for Figure 1 The structural schematic diagram of the carrying tray shown; Figure 3 for Figure 1 A circular hanger for replacing radiation furnace tubes of an industrial cylindrical furnace comprises:

[0030] A convection furnace tube 1, wherein a load-bearing tray hanging hoist 3 is disposed below the convection furnace tube 1, a plate-type lifting lug 11 is disposed below the load-bearing tray hanging hoist 3, a load-bearing tray 10 is disposed on the surface of the plate-type lifting lug 11, and a plurality of inverted L-shaped hanging rods 4 and horizontal connecting rods 8 are respectively disposed on the surface of the load-bearing tray 10;

[0031] An annular track 9, the annular track 9 is arranged below the carrying tray 10, a plurality of hand chain monorail trolleys 12 are arranged on the surface of the annular track 10, a lifting hoist 13 is arranged on the side of the hand chain monorail trolley 12, a sling 14 is arranged below the lifting hoist 13, a radiation furnace tube 7 is arranged below the sling 14, and a sharp elbow 5 is connected to the end of the radiation furnace tube 7;

[0032] One side of the horizontal connecting rod 8 is connected to the furnace pipe hanging bracket 6 .

[0033] A hoisting hole 2 is opened on one side of the convection furnace tube 1 , and a furnace cavity lining 17 is arranged on the inner wall of the convection furnace tube 1 .

[0034] A threaded fixing member 15 is disposed on the surface of the horizontal connecting rod 8 , and a single group of furnace tubes 16 to be suspended is disposed below the horizontal connecting rod 8 .

[0035] The load-bearing pallet 10 includes an upper pallet cover plate 18 and a lower pallet cover plate 20 , an upper and lower cover plate connecting tube 21 is provided between the upper and lower pallet cover plate 18 and the lower pallet cover plate 20 , and a plurality of upper and lower cover plate vertical ribs 19 are welded to the surface of the upper and lower cover plate connecting tube 21 .

[0036] One end of the horizontal connecting rod 8 is connected to a horizontal connecting rod box-type ear support 22 , and fastening bolts 11 are provided between the pallet upper cover plate 18 , the pallet lower cover plate 20 , the upper and lower cover plate connecting tubes 21 and the horizontal connecting rod box-type ear support 22 .

[0037] When replacing a single furnace tube, move the monorail trolley to the furnace tube to be replaced, tie the furnace tube with steel wire rope, pre-tighten and lift the furnace tube with the hoisting hoist under the monorail trolley, and move it to the hoisting hole along the circular track. The crane outside the furnace lowers the hoisting wire rope from the hoisting hole to tie the furnace tube, unload the hoisting hoist, and transfer the furnace tube to the crane outside the furnace, completing the dismantling of the furnace tube to be replaced. The replacement of the furnace tube is carried out in the reverse process of dismantling.

[0038] For the replacement of a single group of furnace tubes, two monorail trolleys are used for lifting in consideration of the lifting height. The lifting hoists under the monorail trolleys respectively bundle, pre-tighten and lift the furnace tubes laterally. The sharp bends of the furnace tubes are manually pried out of the lifting mechanism. The two monorail trolleys load the single group of furnace tubes and shift them along the circular track to the lifting holes. The crane outside the furnace carries out the lifting and transfers the single group of furnace tubes to the crane outside the furnace, thus completing the dismantling of the single group of furnace tubes to be replaced. The replacement of a single group of furnace tubes is carried out in the reverse process of dismantling.

[0039] Compared with the related art, the annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace provided by the utility model has the following beneficial effects:

[0040] The utility model provides an annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace. The device can replace the current manual operation mode, shorten the operation time, and improve the safety of operation during maintenance.

[0041] Second embodiment

[0042] Please refer to Figure 4 Based on the annular hanger for replacing industrial cylindrical furnace radiation furnace tubes provided in the first embodiment of the present application, the second embodiment of the present application proposes another annular hanger for replacing industrial cylindrical furnace radiation furnace tubes. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0043] Specifically, the difference of the annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace provided in the second embodiment of the present application is that, in the annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace, an adjustment component 23 is arranged between the supporting tray 10 and the horizontal connecting rod 8, and the adjustment component 23 includes an adjustment block 231 and a through groove 232, and a fixing bolt 233 is arranged inside the through groove 232.

[0044] The inner wall of the carrying tray 10 is provided with a fixing hole 234 matched with the fixing bolt 233 .

[0045] The working principle of the annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace provided by the utility model is as follows:

[0046] During use, when installing the horizontal connecting rod 8, first connect the horizontal connecting rod 8 with the adjustment block 231 to the carrying tray 10, and then place the fixing bolt 233 inside the through groove 232, pass through the horizontal connecting rod 8 and the adjustment block 231 and connect with the fixing hole 234 on the surface of the carrying tray 10.

[0047] Compared with the related art, the annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace provided by the utility model has the following beneficial effects:

[0048] The utility model provides an annular hanger for replacing radiation furnace tubes of an industrial cylindrical furnace. An adjustment component 23 is arranged between a carrying tray 10 and a horizontal connecting rod 8 so as to adjust and disassemble the positions of a plurality of horizontal connecting rods 8.

[0049] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An annular hanger for replacing an industrial cylindrical furnace radiation furnace tube, characterized in that: include: A convection furnace tube, wherein a load-bearing tray hanging hoist is arranged below the convection furnace tube, a plate-type lifting lug is arranged below the load-bearing tray hanging hoist, a load-bearing tray is arranged on the surface of the plate-type lifting lug, and a plurality of inverted L-shaped hanging rods and horizontal connecting rods are respectively arranged on the surface of the load-bearing tray; An annular track, the annular track is arranged below the carrying tray, a plurality of hand chain monorail trolleys are arranged on the surface of the annular track, a lifting hoist is arranged on the side of the hand chain monorail trolley, a sling is arranged below the lifting hoist, a radiation furnace tube is arranged below the sling, and a sharp elbow is connected to the end of the radiation furnace tube; One side of the horizontal connecting rod is connected with a furnace pipe hanging hook.

2. The annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace according to claim 1 is characterized in that: A hoisting hole is opened on one side of the convection furnace tube, and a furnace cavity lining is arranged on the inner wall of the convection furnace tube.

3. The annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace according to claim 1 is characterized in that: A threaded fixing piece is arranged on the surface of the horizontal connecting rod, and a single group of furnace tubes to be suspended is arranged below the horizontal connecting rod.

4. The annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace according to claim 1 is characterized in that: The load-bearing pallet comprises an upper pallet cover plate and a lower pallet cover plate, an upper and lower cover plate connecting tube is arranged between the upper and lower pallet cover plates, and a plurality of upper and lower cover plate vertical ribs are welded on the surface of the upper and lower cover plate connecting tube.

5. The annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace according to claim 4 is characterized in that: One end of the horizontal connecting rod is connected to a horizontal connecting rod box-type ear support, and fastening bolts are provided between the pallet upper cover plate, the pallet lower cover plate, the upper and lower cover plate connecting tubes and the horizontal connecting rod box-type ear support.

6. The annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace according to claim 1, characterized in that: An adjustment component is arranged between the carrying tray and the horizontal connecting rod. The adjustment component comprises an adjustment block and a through slot. A fixing bolt is arranged inside the through slot.

7. The annular hanger for replacing the radiation furnace tube of an industrial cylindrical furnace according to claim 6, characterized in that: The inner wall of the carrying tray is provided with a fixing hole matched with the fixing bolt.

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