CN218026208U

CN218026208U - Soft sealing device for disc roller of annealing furnace

Info

Publication number: CN218026208U
Application number: CN202222164176.3U
Authority: CN
Inventors: 宋昆鹏; 贾绍庆; 齐建波
Original assignee: Ximake Technology Beijing Co ltd
Current assignee: Ximake Technology Beijing Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-12-13
Anticipated expiration: 2032-08-17

Abstract

The utility model discloses a soft sealing device of annealing stove disc roller, including being located disc roller both sides, just locating two soft sealing member between disc roller and the refractory castable material, two soft sealing member lateral surface is equipped with at least one clamp plate respectively, soft sealing member with connect through adjustable two relative position's connecting piece between the clamp plate, soft sealing member with the clamp plate together is connected with power unit under power unit's the drive, two soft sealing member can paste realize sealed on the refractory castable material, two soft sealing member passes through the clamp plate can paste the both sides face of disc roller is realized sealedly. The soft sealing device of the disc roller of the annealing furnace has good sealing effect, simple maintenance and operation, is beneficial to the improvement of the quality of strip steel, can prolong the service life of the disc roller, and improves the benefit of the whole annealing furnace.

Description

Soft sealing device of annealing furnace disc roller

Technical Field

The utility model relates to a heat treatment facility's sealed technical field especially relates to a soft sealing device for annealing stove disc roller.

Background

The annealing furnace is a main device of a stainless steel continuous annealing pickling line, the annealing furnace adopts a horizontal structure, and strip steel is in a horizontal suspension type state in the furnace. The temperature of the strip steel in the heating zone of the annealing furnace can reach about 1100 ℃, the furnace temperature is about 1200 ℃, and the speed of the strip steel is about 120 m/min. To reduce the effect of the furnace rollers on the surface quality of the strip steel, the strip steel is usually supported by fiber rollers. In such a high temperature harsh environment, the rollers wear out severely, requiring frequent replacement, and the unit cannot be shut down when changing rollers. In order to achieve the function, a heating zone of the annealing furnace mostly adopts a disc roller on which a supporting roller is arranged to support the strip steel, two supporting rollers are symmetrically arranged on the disc roller at 180 degrees, the disc roller alternately replaces the supporting rollers through 180-degree rotation, and the strip steel is supported by the surface of the disc roller when a unit stops. In order to allow the disk rolls to rotate without interference, a gap is required between the disk rolls and the refractory castable of the furnace when the disk rolls rotate. However, the existence of the gap can cause air outside the furnace to enter the furnace, so that the oxygen content in the furnace is inaccurately controlled, and the quality of the strip steel and the control of the furnace are influenced. The heat in the furnace can be greatly dissipated through the gap, which causes energy waste. In addition, the temperature near the clearance is increased, the service life of the furnace shell is shortened, and the replacement of the supporting roller by an operator is not facilitated.

In order to reduce the gap between the disc roller and the refractory castable, a fiber blanket or a fiber block is usually added on the refractory castable for sealing. As shown in fig. 1, the structure of the soft sealing device of the disc roller of the annealing furnace in the prior art is schematically illustrated, and the soft sealing device comprises two groups of fiber blocks 1' fixed on two section steels 3', wherein the number of each group of fiber blocks 1' is multiple, the two groups of fiber blocks 1' are arranged on the left and right sides of the disc roller 2' in a bilateral symmetry manner and are arranged between the disc roller 2' and the refractory castable 4', and the two section steels 3' are fixed on a furnace shell 5 '. The structure of the soft sealing device has the following defects:

1. the fiber block 1 'and the disc roller 2' are in line contact with each other, and when the backup roller 6 'and the disc roller 2' are replaced by rotating the disc roller, a gap is formed between the fiber block 1 'and the disc roller 2'.

2. When the disc roller 2 'rotates, it is worn by the steel strip 7', which causes the gap between the fiber block 1 'and the disc roller 2' to increase continuously, and the existing sealing structure cannot compensate the gap. The disc roller 2' can only be replaced by stopping, the service life of the disc roller 2' is shortened, and the use cost, the stopping cost and the labor cost of the disc roller 2' are increased.

3. Because the sealing is not ideal, energy is wasted, the control of the oxygen content in the furnace is not facilitated, the annealing quality of the strip steel 7 'is further influenced, and the service life of the furnace shell 5' near the sealing structure is shortened.

How to design a soft sealing device of a disc roller of an annealing furnace, which can achieve better sealing effect, is a problem of the intensive research of the inventor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soft sealing device of annealing stove disc roller, it is sealed effectual, maintains easy operation, is favorable to belted steel quality's improvement, can prolong the life of disc roller to improve the benefit of whole annealing stove.

In order to realize above-mentioned purpose, the utility model provides a soft sealing device of annealing stove disc roller, including being located disc roller both sides, just locating two soft sealing member between disc roller and the refractory castable, wherein two soft sealing member lateral surface is equipped with at least one clamp plate respectively, soft sealing member with connect through adjustable two relative position's connecting piece between the clamp plate, soft sealing member with the clamp plate together is connected with power unit under power unit's the drive, two soft sealing member can paste realize sealed, two on the refractory castable soft sealing member passes through the clamp plate can paste the both sides face of disc roller is realized sealed.

Preferably, the soft sealing element comprises a first sealing part and a second sealing part, the first sealing part is used for sealing the refractory castable, the second sealing part is used for sealing the disc roller, the first sealing part is connected with the second sealing part in a sealing mode, the first sealing part can be attached to the refractory castable to achieve sealing under the driving of the power mechanism, and the second sealing part can be attached to the outer side face of the disc roller to achieve sealing under the action of the pressing plate.

Preferably, the first sealing part is a fiber module extending in the length direction of the disc roller, and one surface of the first sealing part, which is hermetically attached to the castable refractory, corresponds to the shape of the attachment surface of the castable refractory.

Preferably, the second sealing part is a fiber blanket extending in a longitudinal direction of the disc roller, and one surface of the second sealing part, which is sealed and attached to the disc roller, corresponds to a shape of an attachment surface of the disc roller.

Preferably, the number of the power mechanisms is two, each power mechanism comprises an air cylinder, a piston rod of each air cylinder is connected with one end of a connecting rod, the other end of each connecting rod is connected with a rotary abutting component, the rotary abutting components are connected with the soft sealing element and the pressing plate on one side of the disc roller, when the piston rod of each air cylinder stretches, the connecting rods are driven to rotate, and the connecting rods drive the rotary abutting components, the soft sealing elements and the pressing plates to rotate, so that the soft sealing elements and the refractory castable are sealed or separated.

Preferably, the soft sealing element is fixed on the section steel, and the pressing plate, the section steel and the rotary pressing assembly are connected together.

Preferably, the rotary pressing component comprises a supporting beam and a rotary pressing part arranged on the supporting beam, the other end of the connecting rod is connected with the supporting beam, one end, far away from the supporting beam, of the rotary pressing part is connected with the section steel, when a piston rod of the air cylinder stretches, the connecting rod is driven to rotate, and the connecting rod drives the supporting beam, the rotary pressing part, the section steel, the soft sealing part and the pressing plate to rotate.

Preferably, the support beam is mounted on a support base, and the support base is mounted on the furnace shell.

Preferably, the pressing plates on each side are provided in plurality, and the plurality of pressing plates are continuously arranged side by side along the length direction of the disc roller.

Preferably, the connecting piece adopts a screw rod and a nut, each pressure plate is provided with a long hole, and each screw rod penetrates through the section steel and the corresponding long hole of the pressure plate and then is connected with the nut.

After the scheme is adopted, the soft sealing device of the annealing furnace disc roller is provided with the pressing plates with the adjustable positions on the left side and the right side of the soft sealing element respectively, when a certain surface of the disc roller is worn by a steel belt, the soft sealing element can be pressed on the surface of the worn disc roller again by adjusting the position of the pressing plate corresponding to the worn part, the gap of the disc roller after surface wear is compensated, and the sealing effect is greatly improved; and through setting up power unit, can drive the laminating or the separation of soft sealing member and refractory castable and disc roller to conveniently change or install the backing roll. The utility model discloses maintain easy operation, it has increased the accuracy to interior oxygen content control of stove, is favorable to the improvement of belted steel quality, has lengthened the life of disc roller, has practiced thrift the energy and the artifical maintenance cost, has improved the benefit of whole stainless steel annealing stove.

Drawings

FIG. 1 is a schematic structural view of a conventional soft sealing device for a disc roll of an annealing furnace;

FIG. 2 is a transverse cross-sectional view of a soft sealing device for a disc roll of an annealing furnace according to an embodiment of the present invention;

FIG. 3 is a longitudinal sectional view of a soft sealing device of a disc roller of an annealing furnace according to an embodiment of the present invention;

fig. 4 is a schematic view of the connection structure of the power mechanism of the present invention.

Detailed Description

The invention will be elucidated below on the basis of an embodiment shown in the drawing. The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is not limited by the following description of the embodiments, but is defined only by the scope of the claims, and includes all modifications that have the same meaning as the scope of the claims and are within the scope of the claims.

The structure of the soft sealing device for the disc roller of the annealing furnace of the present invention is described below with reference to specific embodiments.

Referring to fig. 2 and 3, the soft sealing device for the disc roller of the annealing furnace of the present invention comprises two soft sealing elements 3, a power mechanism and a plurality of pressing plates 4, which are located on the left and right side surfaces of the disc roller 1 and are located between the disc roller 1 and the refractory castable 2. The outer side surfaces of the two soft sealing elements 3 are respectively provided with at least one pressing plate 4, and the left side and the right side of the disc roller 1 are respectively provided with five pressing plates 4 which are approximately inverted L-shaped plates. Five pressing plates 4 are continuously arranged side by side along the length direction of the disc roller 1, and specifically, the five pressing plates 4 are a pressing plate 4.1 positioned in the middle of the soft sealing element 3, two pressing plates 4.2 positioned on the secondary side of the soft sealing element 3 and two pressing plates 4.3 positioned on the side of the soft sealing element 3. The soft sealing element 3 is fixed on the section steel 9, and the section steel 9 is connected with the five pressing plates 4.1, 4.2 and 4.3 through connecting pieces capable of adjusting the relative positions of the section steel and the five pressing plates. The connecting piece of this embodiment adopts screw rod 5 and nut 6, and screw rod 5 is together fixed with shaped steel 9, and this embodiment screw rod 5 welds on shaped steel 9. One end of each screw rod 5 is connected with a nut 6 after passing through the corresponding long hole on the pressure plate 4.1, the pressure plate 4.2 or the pressure plate 4.3. By adjusting the positions of the pressing plates 4.1, 4.2, and 4.3 in the direction of the long hole, the soft seal member 3 fixed to the section steel 9 can be sealingly bonded to the surface of the disc roller 1.

The soft seal 3 comprises a first seal 7 for sealing the castable refractory 2 and a second seal 8 for sealing the disc roller 1. The first seal portion 7 of the present embodiment is a fiber module extending in the longitudinal direction of the disc roller 1 and having a substantially rectangular cross section. The shape of one surface of the first sealing part 7 which is hermetically attached to the refractory castable 2 corresponds to the shape of the attachment surface of the refractory castable 2. The second sealing portion 8 of this embodiment is made of a fiber blanket, extends along the length direction of the disc roller 1, and has an inverted L-shaped cross section, and the outer shape of the second sealing portion is adapted to the pressing plate 4. The shape of the surface of the second sealing part 8 which is hermetically attached to the disc roller 1 corresponds to the shape of the attachment surface of the disc roller 1, and the upper surface of the second sealing part 8 is attached to the lower surface of the first sealing part 7 and is hermetically fixed. Referring to fig. 2, the first seal portion 7 is fixed to the upper surface of the second seal portion 8, and the second seal portion 8 is fixed to the upper surface of the section steel 9 in this embodiment.

The profile steel 9 is fixed on a power mechanism. Referring to fig. 4, the power mechanism includes a cylinder 10, a piston rod of the cylinder 10 is hinged to one end of a connecting rod 11, and the other end of the connecting rod 11 is connected to the rotary pressing component. The rotating pressing component comprises a supporting beam 12 and a rotating pressing part 13 arranged on the supporting beam 12, the supporting beam 12 is arranged on a supporting seat 14, and the supporting seat 14 is arranged on a furnace shell 17. The supporting beam 12 and the rotating pressing part 13 are arranged perpendicularly and crosswise. The rotary pressing part 13 is an L-shaped component with an included angle larger than 90 degrees. The other end of the connecting rod 11 is vertically connected with one end of the supporting beam 12. The upper surface of one end of the rotary pressing part 13 far away from the supporting beam 12 is fixedly connected with the section steel 9 through the screw 5 and the nut 6.

When the soft sealing elements 3 are arranged between the disc roller 1 and the refractory castable 2 for sealing, the sealing elements 3 are firstly fixed on the section steel 9, and then the section steel 9, the corresponding five pressing plates 4.1, 4.2 and 4.3 and the upper surface of one end of the rotary pressing part 13, which is far away from the supporting beam 12, are connected together through the plurality of screw rods 5 and the plurality of nuts 6. Then, the piston rod of the cylinder 10 is moved in a telescopic manner, as shown in fig. 4, the piston rod of the cylinder 10 is contracted, the connecting rod 11 is driven by the piston rod to rotate clockwise, and the connecting rod 11 drives the supporting beam 12, the rotary pressing part 13, the section steel 9, the soft sealing element 3 and the plurality of pressing plates 4.1, 4.2 and 4.3 to rotate clockwise, so that the first sealing part 7 of the soft sealing element 3 is sealed and attached to the surface of the refractory castable 2. Then, the positions of the screw rods 5 and the nuts 6 are adjusted, so that the pressing plates 4.1, 4.2 and 4.3 respectively press the second sealing part 8 of the soft sealing element 3, the second sealing part 8 is sealed and attached to the outer surface of the disc roller 1, and the disc roller 1 is sealed by the second sealing part 8. This process is adapted to the left and right side sealing of the disc roll 1.

When a certain surface position of the disc roller 1 is worn by the strip steel 16, the position of the pressure plate at the position is adjusted, and the operation is that firstly the screw rod 5 and the nut 6 are loosened, the pressure plate moves to the surface close to the worn position of the disc roller 1, the pressure plate is attached to the outer surface of the disc roller 1 in a sealing mode, and then the screw rod 5 and the nut 6 are screwed. When the middle position of the disc roller 1 is worn, the middle pressure plate 4.1 is adjusted, when the secondary edge part of the disc roller 1 is worn, the secondary edge pressure plate 4.2 is adjusted, and when the edge part of the disc roller 1 is worn, the pressure plate 4.3 at the edge part is adjusted, so that the pressure plate 4.1, the pressure plate 4.2 or the pressure plate 4.3 presses the second sealing part 8 to the worn surface of the disc roller 1, and the gap caused by the abrasion of a certain surface position of the disc roller 1 is compensated.

When the supporting roller 15 on the disc roller 1 needs to be replaced, the piston rod of the cylinder 10 extends out to drive the connecting rod 11 to rotate anticlockwise, the connecting rod 11 drives the supporting beam 12, the rotary pressing part 13, the section steel 9 and the soft sealing element 3 and the plurality of pressing plates 4.1, 4.2 and 4.3 connected to the section steel 9 to rotate anticlockwise together, so that the first sealing part 7 and the second sealing part 8 rotate to the opening positions, namely the first sealing part 7 is separated from the surface of the refractory castable 2, and the second sealing part 8 is separated from the surface of the disc roller 1; when the disc roller 1 rotates 180 deg.65042nd the supporting roller 15 is replaced, the piston rod of the cylinder 10 is contracted and the soft sealing part 3 is rotated to close again to seal the disc roller 1 and the refractory castable 2.

The soft sealing device of the utility model is provided with five pressure plates 4.1, 4.2 and 4.3 with adjustable positions on the left side and the right side of the soft sealing element 3 respectively, when a certain surface of the disc roller 1 is worn by a steel belt, the soft sealing element 3 can be pressed on the surface of the worn disc roller 1 again by adjusting the position of the pressure plate 4.1, 4.2 or 4.3 corresponding to the worn part, the gap of the worn disc roller 1 surface is compensated, and the sealing effect is greatly improved; and through setting up power unit, can drive the laminating or separation of soft sealing member 3 and refractory castable 2 and disc roller 1 to conveniently change or install backing roll 15. The utility model discloses maintain easy operation, it has increased the accuracy to interior oxygen content control of stove, is favorable to the improvement of belted steel quality, has lengthened disc roller 1's life, has practiced thrift the energy and the artifical maintenance cost, has improved the benefit of whole stainless steel annealing stove.

It is to be understood that the invention is not limited to the example methods, structures, and precise arrangements shown in the drawings, which have been described above and illustrated above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. The utility model provides a soft sealing device of annealing stove disc roller, is including being located disc roller both sides and locating two soft sealing member between disc roller and the refractory castable, its characterized in that, two soft sealing member lateral surface is equipped with at least one clamp plate respectively, soft sealing member with connect through adjustable two relative position's connecting piece between the clamp plate, soft sealing member with the clamp plate is together connected with power unit under power unit's the drive, two soft sealing member can paste realize sealed on the refractory castable, two soft sealing member passes through the clamp plate can paste the both sides face of disc roller realizes sealed.

2. The soft sealing device of the annealing furnace disc roller according to claim 1, wherein the soft sealing element comprises a first sealing part for sealing the refractory castable and a second sealing part for sealing the disc roller, the first sealing part is connected with the second sealing part in a sealing manner, the first sealing part can be attached to the refractory castable to realize sealing under the driving of the power mechanism, and the second sealing part can be attached to the outer side surface of the disc roller to realize sealing under the action of the pressing plate.

3. The apparatus of claim 2, wherein the first sealing portion is a fiber module extending along a length of the disk roll, and the first sealing portion is sealed against the castable refractory material in a shape corresponding to an abutment surface of the castable refractory material.

4. The soft sealing device for the annealing furnace disc roller according to claim 2, wherein the second sealing part is a fiber blanket extending along the length direction of the disc roller, and the shape of the surface of the second sealing part which is sealed and adhered to the disc roller is corresponding to the shape of the adhering surface of the disc roller.

5. The soft sealing device for the disc roller of the annealing furnace according to claim 1, wherein the number of the power mechanisms is two, each power mechanism comprises a cylinder, a piston rod of the cylinder is connected with one end of a connecting rod, the other end of the connecting rod is connected with a rotary pressing component, the rotary pressing component is connected with the soft sealing element and the pressing plate on one side of the disc roller, when the piston rod of the cylinder stretches, the connecting rod is driven to rotate, and the connecting rod drives the rotary pressing component, the soft sealing element and the pressing plate to rotate, so that the soft sealing element and the refractory castable are sealed or separated.

6. The soft sealing device for the disc roller of the annealing furnace according to claim 5, wherein the soft sealing element is fixed on the section steel, and the pressing plate, the section steel and the rotary pressing component are connected together.

7. The soft sealing device of the annealing furnace disc roller according to claim 6, wherein the rotary pressing component comprises a support beam and a rotary pressing part arranged on the support beam, the other end of the connecting rod is connected with the support beam, one end of the rotary pressing part far away from the support beam is connected with the section steel, when a piston rod of the cylinder stretches, the connecting rod is driven to rotate, and the connecting rod drives the support beam, the rotary pressing part, the section steel, the soft sealing part and the pressing plate to rotate.

8. The soft sealing device for lehr disc rolls as claimed in claim 7,

the supporting beam is arranged on a supporting seat, and the supporting seat is arranged on the furnace shell.

9. The soft sealing apparatus for lehr disc rolls as claimed in claim 1, wherein the press plates of each side are provided in plural, and the press plates are arranged side by side in series along the length direction of the disc roll.

10. The soft sealing device for the disc rollers of the annealing furnace as claimed in claim 6, wherein the connecting piece is a screw rod and a nut, each pressing plate is provided with a long hole, and each screw rod passes through the section steel and the corresponding long hole of the pressing plate and then is connected with the nut.