CN219956106U

CN219956106U - Elastic hanging device for furnace top

Info

Publication number: CN219956106U
Application number: CN202321602910.8U
Authority: CN
Inventors: 武晓煜; 武怀安
Original assignee: Jinzhong Xinhai Refractory Materials Co ltd
Current assignee: Jinzhong Xinhai Refractory Materials Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-11-03
Anticipated expiration: 2033-06-21

Abstract

The utility model provides an elastic hanging device for a furnace top, which relates to the technical field of reduction furnaces and comprises a furnace body, wherein a plurality of steel beams are fixedly connected to the top of the furnace body, a plurality of fixing plates are arranged in the steel beams, sliding rods are slidably connected in the fixing plates, thick springs and thin springs are sleeved outside the sliding rods, the thin springs are arranged at the tops of the thick springs, a connecting plate is fixedly connected to the tops of the thick springs, the thin springs are fixedly connected to the tops of the connecting plates, the connecting plate is sleeved outside the sliding rods and is slidably connected with the sliding rods, a lifting hook is fixedly connected to the bottom end of the sliding rods, and a hanging assembly is arranged at the bottom end of the lifting hook. The furnace top elastic hanging device. According to the furnace top elastic hanging device, the thick spring can absorb deformation pulling force generated by thermal expansion and cold contraction, and the situation that the furnace top collapses due to the fact that hanging bricks are broken due to shearing force generated between stress generated by deformation of the furnace top and rigid force of a lifting hook is avoided.

Description

Elastic hanging device for furnace top

Technical Field

The utility model relates to a hanging device, in particular to an elastic hanging device for a furnace top, and belongs to the technical field of reduction furnaces.

Background

The existing metal magnesium reduction furnace roof is commonly divided into two types, wherein one type is a hanging mode, hanging bricks are fixed below a furnace roof steel structure by adopting hanging hooks or dovetail clamping grooves, and then refractory castable is poured around the hanging bricks. And secondly, an arch furnace roof is adopted, and the arch furnace roof is ensured not to collapse by means of the strength of the refractory material and the mutual support of the furnace wall.

The hanging mode has the defects that the hanging bricks are fixed in position and cannot horizontally displace along with the heat expansion and cold contraction of the furnace top castable, and the shearing force generated by displacement can cause the hanging bricks to break, so that the furnace top collapses.

The porous furnace roof is affected by expansion and contraction by adopting an arch furnace roof, so that stress is generated, and the stress is concentrated at the position where two circular arcs of the furnace roof are closest. The repeated action of the stress can lead to cracks at the narrowest part of the vault, and after the cracks are generated, the vault can only be prevented from sinking by mutual support with the vaults and the furnace walls at the two sides. However, in the use process, the vault and the furnace wall shrink and deform to different degrees, and the reduction tank is mechanically damaged by extrusion, friction, collision and the like, so that the supporting surface at the original crack of the vault is displaced, damaged and lost in support, and the furnace roof collapses.

Disclosure of Invention

(one) solving the technical problems

The utility model aims to solve the problems that the shearing force generated by the furnace roof in the prior art can cause the hanging bricks to break and the furnace roof to collapse.

(II) technical scheme

The utility model is realized by the following technical scheme: the utility model provides a furnace roof elasticity cable suspension device, includes the furnace body, furnace body top fixedly connected with a plurality of girder steel, a plurality of girder steel is inside all to be provided with a plurality of fixed plates, a plurality of the inside equal sliding connection of fixed plate has the slide bar, slide bar outside cover is equipped with thick spring and thin spring, thin spring sets up in thick spring top, thick spring top fixedly connected with connecting plate, thin spring fixedly connected with in connecting plate top, the connecting plate cover is located the slide bar outside and with slide bar sliding connection, slide bar bottom fixedly connected with lifting hook, the lifting hook bottom is provided with the link subassembly.

Preferably, the fine spring top fixedly connected with limiting plate, the limiting plate top is provided with the baffle, the slide bar outside is located to the baffle cover, slide bar top threaded connection has the nut, the nut sets up in the baffle top, makes the baffle spacing the limiting plate, makes the limiting plate remain stable.

Preferably, sliding sleeves are hinged to two sides of the inside of the fixing plate, hanging rods are connected to the two sliding sleeves in a sliding mode, and the sliding sleeves can slide in the hanging rods.

Preferably, the limiting plate both sides all fixedly connected with hang the knot, two the peg respectively with two hang the knot and hang and connect, make peg and hang the knot and be connected to carry out spacing support to the limiting plate, improve stability.

Preferably, the hooking component comprises a lifting hook, a clamping piece and a hanging brick, wherein the lifting hook is fixedly connected to the bottom end of the sliding rod, and the clamping piece is hooked to the bottom end of the lifting hook to support the clamping piece.

Preferably, the clamping piece bottom is provided with the hanging brick, the inside screw rod that is provided with of hanging brick, the screw rod both ends run through respectively and hang brick both ends and with hanging brick threaded connection, be favorable to hanging the brick and connect.

Preferably, high-temperature castable is poured on the outer sides of the hanging bricks, a heat-insulating fiber blanket is paved on the top of the high-temperature castable, and heat-insulating castable is poured on the top of the heat-insulating fiber blanket.

The utility model provides an elastic hanging device for a furnace top, which has the following beneficial effects:

1. when the elastic hanging device for the furnace top is used, when the furnace top deforms due to thermal field shrinkage, the hanging brick is pulled to move, the hanging brick drives the clamping piece and the lifting hook to move, the lifting hook pulls the sliding rod to move, the sliding rod drives the nut to move when moving, thereby the nut pushes the baffle to drive the limiting plate to move, the limiting plate compresses the thin spring and the thick spring, the thick spring can absorb deformation pulling force generated due to thermal expansion and shrinkage, after the elastic hanging device is used for a long time, if the thick spring is pulled continuously under a high-temperature environment, the situation that the elastic force is weakened is caused, the thin spring can be put into use, normal use of the device is ensured, the situation that the furnace top collapses due to the fact that the hanging brick is broken due to shearing force generated between stress generated by deformation of the furnace top and rigid force of the lifting hook is avoided, based on the advantages, the length of the hanging brick can be increased, the thickness of an insulating layer of the furnace top is increased, gas consumption is saved, and the production cost is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the hanging brick of the present utility model;

fig. 3 is a schematic diagram of a limiting plate structure according to the present utility model.

[ Main reference numerals Specification ]

1. A furnace body; 2. a steel beam; 3. a fixing plate; 4. a slide bar; 5. a thick spring; 6. a connecting plate; 7. a thin spring; 8. a limiting plate; 9. a baffle; 10. a nut; 11. a sliding sleeve; 12. a hanging rod; 13. hanging buckle; 14. a lifting hook; 15. a clamping piece; 16. hanging bricks; 17. a screw; 18. high-temperature castable; 19. a thermal insulation fiber blanket; 20. and (5) preserving heat and casting materials.

Detailed Description

The embodiment of the utility model provides an elastic hanging device for a furnace top.

Referring to fig. 1, 2 and 3, the furnace comprises a furnace body 1, a plurality of steel beams 2 are fixedly connected to the top of the furnace body 1, a plurality of fixing plates 3 are arranged in the steel beams 2, sliding rods 4 are slidably connected in the fixing plates 3, thick springs 5 and thin springs 7 are sleeved outside the sliding rods 4, the thin springs 7 are arranged at the tops of the thick springs 5, connecting plates 6 are fixedly connected to the tops of the thick springs 5, the thin springs 7 are fixedly connected to the tops of the connecting plates 6, the connecting plates 6 are sleeved outside the sliding rods 4 and slidably connected with the sliding rods 4, lifting hooks 14 are fixedly connected to the bottom ends of the sliding rods 4, hanging components are arranged at the bottom ends of the lifting hooks 14, limiting plates 8 are fixedly connected to the top ends of the thin springs 7, baffle plates 9 are arranged at the tops of the limiting plates 8, the baffle plates 9 are sleeved outside the sliding rods 4, nuts 10 are in threaded connection with the tops of the sliding rods 9, the baffle plates 9 limit the limiting plates 8, the limiting plate 8 is kept stable, sliding sleeves 11 are hinged to two inner sides of the fixing plate 3, hanging rods 12 are slidably connected to the inner sides of the two sliding sleeves 11, the sliding sleeves 11 can slide in the hanging rods 12, hanging buckles 13 are fixedly connected to two sides of the limiting plate 8, the two hanging rods 12 are respectively connected with the two hanging buckles 13, the hanging rods 12 are connected with the hanging buckles 13, the limiting plate 8 is limited and supported, the stability is improved, the hanging assembly comprises a hanging hook 14, a clamping piece 15 and hanging bricks 16, the hanging hook 14 is fixedly connected to the bottom end of the sliding rod 4, the clamping piece 15 is hung to the bottom end of the hanging hook 14, the clamping piece 15 is supported, the hanging bricks 16 are arranged at the bottom of the clamping piece 15, screw rods 17 are arranged in the hanging bricks 16, two ends of the screw rods 17 penetrate through two ends of the hanging bricks 16 respectively and are in threaded connection with the hanging bricks 16, connection with the hanging bricks 16 is beneficial to the connection of the hanging bricks 16, high-temperature castable 18 is poured outside the hanging bricks 16, a heat-insulating fiber blanket 19 is paved on the top of the high-temperature castable 18, and a heat-insulating castable 20 is poured on the top of the heat-insulating fiber blanket 19.

The utility model is used when in use: after installing girder steel 2 in furnace body 1 top to make a plurality of fixed plates 3 install in girder steel 2 inside, make slide bar 4 pass from girder steel 2 bottom and make fixed plate 3 cover locate the slide bar 4 outside, locate the slide bar 4 outside with thick spring 5 and thin spring 7 cover, thin spring 7 is in by thick spring 5 compression state, and make baffle 9 cover locate the slide bar 4 outside, baffle 9 falls to limiting plate 8 top, again with nut 10 threaded connection in the slide bar 4 outside, then rotate nut 10 downwards, make nut 10 and baffle 9 contact, and promote baffle 9 and carry out spacingly limiting plate 8, thereby fix a position slide bar 4, again with two peg 12 and two string 13 articulates, be favorable to improving limiting plate 8's stability.

The clamping piece 15 is hung on the outer side of the lifting hook 14, the screw 17 penetrates through the hanging bricks 16 and the clamping piece 15 to fix the hanging bricks 16, finally, a layer of high-temperature castable 18 is poured on the outer sides of the hanging bricks 16, a heat-insulating fiber blanket 19 is paved on the top of the high-temperature castable 18, a heat-insulating castable 20 is poured on the top of the heat-insulating fiber blanket 19, and the temperature in the furnace roof can be reduced from the original 200 ℃ to below 100 ℃.

When the device is used, when the furnace top is deformed due to thermal field shrinkage, the hanging brick 16 is pulled to move, the hanging brick 16 drives the clamping piece 15 and the lifting hook 14 to move, the lifting hook 14 pulls the sliding rod 4 to move, the sliding rod 4 drives the nut 10 to move when moving, thereby the nut 10 pushes the baffle 9 to drive the limiting plate 8 to move, the limiting plate 8 compresses the thin spring 7 and the thick spring 5, the thick spring 5 can absorb deformation pulling force generated by thermal expansion and shrinkage, and after long-time use, if the thick spring 5 is pulled continuously under high-temperature environment, the situation of weakening the elasticity occurs, the thin spring 7 can be put into use, normal use of the device is ensured, the situation that the furnace top collapses due to the fact that the hanging brick 16 is broken due to the shearing force generated between the stress generated by furnace top deformation and the rigid force of the lifting hook 14 is avoided, based on the advantages, the length of the hanging brick 16 can be increased, the thickness of a heat insulation layer of the furnace top is increased, the consumption of fuel gas is saved, and the production cost is reduced.

Working principle: when the device is used, when the furnace roof deforms due to thermal field shrinkage, the hanging brick 16 is pulled to move, the hanging brick 16 drives the clamping piece 15 and the lifting hook 14 to move, the lifting hook 14 pulls the sliding rod 4 to move, the sliding rod 4 drives the nut 10 to move when moving, thereby the nut 10 pushes the baffle 9 to drive the limiting plate 8 to move, the limiting plate 8 compresses the thin spring 7 and the thick spring 5, the thick spring 5 can absorb deformation pulling force generated by thermal expansion and shrinkage, and after long-time use, if the thick spring 5 is pulled continuously under high-temperature environment, the situation of weakening elasticity occurs, the thin spring 7 can be put into use, normal use of the device is ensured, the situation that the furnace roof collapses due to the fact that the hanging brick 16 is broken due to shearing force generated between stress generated by furnace roof deformation and rigid force of the lifting hook 14 is avoided, and the device is based on the advantages.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a furnace roof elasticity cable suspension device, includes furnace body (1), its characterized in that: furnace body (1) top fixedly connected with girder steel (2), a plurality of girder steel (2) are inside all to be provided with a plurality of fixed plates (3), a plurality of inside equal sliding connection of fixed plate (3) has slide bar (4), slide bar (4) outside cover is equipped with thick spring (5) and thin spring (7), thin spring (7) set up in thick spring (5) top, thick spring (5) top fixedly connected with connecting plate (6), thin spring (7) fixedly connected with connecting plate (6) top, connecting plate (6) cover is located slide bar (4) outside and with slide bar (4) sliding connection, slide bar (4) bottom fixedly connected with lifting hook (14), lifting hook (14) bottom is provided with and articulates the subassembly.

2. The roof elastic suspension device according to claim 1, wherein: the utility model discloses a fine spring, including fine spring (7), baffle (9), slide bar (4) are located in baffle (9) cover, fine spring (7) top fixedly connected with limiting plate (8), limiting plate (8) top is provided with baffle (9), slide bar (4) top threaded connection has nut (10), nut (10) set up in baffle (9) top.

3. The roof elastic suspension device according to claim 2, wherein: sliding sleeves (11) are hinged to two sides of the inside of the fixed plate (3), and hanging rods (12) are connected inside the two sliding sleeves (11) in a sliding mode.

4. A roof elastic suspension device according to claim 3, characterized in that: the two sides of the limiting plate (8) are fixedly connected with hanging buckles (13), and the two hanging rods (12) are respectively connected with the two hanging buckles (13) in a hanging mode.

5. The roof elastic suspension device according to claim 1, wherein: the hanging assembly comprises a lifting hook (14), a clamping piece (15) and hanging bricks (16), wherein the lifting hook (14) is fixedly connected to the bottom end of the sliding rod (4), and the clamping piece (15) is hung at the bottom end of the lifting hook (14).

6. The roof elastic suspension device according to claim 5, wherein: the bottom of the clamping piece (15) is provided with a hanging brick (16), a screw (17) is arranged inside the hanging brick (16), and two ends of the screw (17) respectively penetrate through two ends of the hanging brick (16) and are in threaded connection with the hanging brick (16).

7. The roof elastic suspension device according to claim 6, wherein: the high-temperature castable (18) is poured outside the hanging bricks (16), a heat-insulating fiber blanket (19) is paved at the top of the high-temperature castable (18), and a heat-insulating castable (20) is poured at the top of the heat-insulating fiber blanket (19).