CN212174976U

CN212174976U - Dismounting device of blast furnace tuyere cover

Info

Publication number: CN212174976U
Application number: CN202020770367.2U
Authority: CN
Inventors: 孙明伟; 王文鹏; 魏翠莉
Original assignee: Chengde Jianlong Special Steel Co Ltd
Current assignee: Chengde Jianlong Special Steel Co Ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-18
Anticipated expiration: 2030-05-11

Abstract

The utility model belongs to the technical field of blast furnace equipment and discloses a dismounting device of a blast furnace tuyere sleeve, which comprises a supporting beam, wherein the length of the supporting beam is greater than the outer diameter of a blast furnace tuyere and is supported outside the blast furnace tuyere; the support beam is provided with a through hole; the pull rod penetrates through the through hole in the supporting beam, the rear end of the pull rod is arranged on the outer side of the tuyere of the blast furnace, the front end of the pull rod is provided with a drag hook which is arranged on the inner side of the tuyere of the blast furnace, and the drag hook can hook the tuyere sleeve; and a drive mechanism disposed between the tie bar and the support beam, the drive mechanism configured to drive the tie bar to move relative to the support beam. The utility model discloses a dismounting device of blast furnace tuyere cover is through setting up actuating mechanism between a supporting beam and pull rod, is convenient for drive the motion of pull rod to realize the automatic drive dismantlement of tuyere cover. The tuyere sleeve is disassembled through the driving mechanism, so that the labor intensity of previous worker disassembly is greatly reduced, the disassembly time is short, the efficiency is high, and the recovery of the blast furnace is facilitated.

Description

Dismounting device of blast furnace tuyere cover

Technical Field

The utility model relates to a blast furnace equipment technical field especially relates to a dismounting device of blast furnace tuyere cover.

Background

The blast furnace tuyere sleeve of the iron works comprises a large sleeve, a middle sleeve and a small sleeve, wherein the tuyere small sleeve is closest to the inside of the furnace and is combined with slag iron to easily cause damage, the tuyere small sleeve needs to be blown down to replace the tuyere after being damaged, and the time for replacing the small sleeve directly influences the production of the blast furnace. At present, a tool for replacing a small sleeve is used as a withdrawing hammer, the mass is about 200kg, a plurality of stokehole workers are required to lift the withdrawing hammer to the inside of an air port, the withdrawing hammer is hammered by a big hammer, the front end of the withdrawing hammer enters the small sleeve and hooks a barb on the front end face of the small sleeve, the stokehole workers slide a sliding hammer on a pull rod, the sliding hammer impacts a stop iron at the tail end of the pull rod, and the small sleeve is detached by means of impact force. The existing method has the defects of heavy weight of the returned hammer, more personnel, high labor intensity of staff, long sleeve unloading time and influence on the double production of the blast furnace.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dismounting device of blast furnace tuyere cover to solve the tuyere cover and dismantle powerful and the long problem of takedown time.

To achieve the purpose, the utility model adopts the following technical proposal:

a blast furnace tuyere stock removing device comprises:

the length of the supporting beam is greater than the outer diameter of the blast furnace tuyere and the supporting beam is supported outside the blast furnace tuyere; the support beam is provided with a through hole;

the pull rod penetrates through the through hole in the supporting beam, the rear end of the pull rod is arranged on the outer side of the tuyere of the blast furnace, the front end of the pull rod is provided with a drag hook which is arranged on the inner side of the tuyere of the blast furnace, and the drag hook can hook the tuyere sleeve; and

a drive mechanism disposed between the tie bar and the support beam, the drive mechanism configured to drive the tie bar to move relative to the support beam.

Optionally, the dismounting device of the blast furnace tuyere sleeve further comprises a baffle, the baffle is connected to the pull rod, the baffle and the pull hook are respectively located on two sides of the supporting beam, and the driving mechanism is arranged between the baffle and the supporting beam.

Optionally, the dismounting device for the blast furnace tuyere sleeve further comprises a reinforcing rib, and the reinforcing rib is arranged on one side, far away from the blast furnace tuyere, of the baffle and is respectively and fixedly connected with the pull rod and the baffle.

Optionally, at least two driving mechanisms are fixed on the supporting beam and uniformly distributed around the circumference of the pull rod.

Optionally, the drive direction of the drive mechanism is parallel to the long axis of the drawbar.

Optionally, the drive mechanism is a jack.

Optionally, the retractor is wedge-shaped, the end facing away from the support beam is narrow, and the end facing towards the support beam is wide.

Optionally, the draw hook is welded to the front end of the pull rod, or is integrally formed with the pull rod.

Optionally, the sum of the outer diameters of the pull rod and the drag hook is smaller than the inner diameter of the through hole.

Optionally, the through hole is coaxial with the tuyere sleeve.

The utility model has the advantages that:

the utility model discloses a dismounting device of blast furnace tuyere cover is through setting up actuating mechanism between a supporting beam and pull rod, is convenient for drive the motion of pull rod to realize the automatic drive dismantlement of tuyere cover. The tuyere sleeve is disassembled through the driving mechanism, so that the labor intensity of previous worker disassembly is greatly reduced, the disassembly time is short, the efficiency is high, and the recovery of the blast furnace is facilitated.

Drawings

FIG. 1 is a schematic structural view of a blast furnace tuyere cover dismounting device of the present invention;

fig. 2 is an installation and use schematic view of the dismounting device of the blast furnace tuyere sleeve of the utility model at the blast furnace tuyere.

In the figure:

1. a support beam; 2, a pull rod; 3, a driving mechanism; 4, pulling a hook;

5. a baffle plate; 6, reinforcing ribs; and 100. a tuyere sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The utility model provides a dismounting device of a blast furnace tuyere sleeve, which comprises a supporting beam 1, a pull rod 2 and a driving mechanism 3, wherein the supporting beam 1 is longer than the outer diameter of the blast furnace tuyere and is supported outside the blast furnace tuyere; the supporting beam 1 is provided with a through hole; the pull rod 2 penetrates through a through hole in the support beam 1, the rear end of the pull rod is arranged outside a blast furnace tuyere, the front end of the pull rod is provided with a drag hook 4, the front end of the pull rod is arranged inside the blast furnace tuyere, and the drag hook 4 can hook the tuyere sleeve 100; the drive mechanism 3 is provided between the tie bar 2 and the support beam 1, and the drive mechanism 3 is configured to drive the tie bar 2 to move relative to the support beam 1.

The utility model discloses a dismounting device of blast furnace tuyere cover is through setting up actuating mechanism 3 between a supporting beam 1 and pull rod 2, is convenient for drive pull rod 2's motion to realize tuyere cover 100's automatic drive dismantles. The tuyere sleeve 100 is disassembled through the driving mechanism 3, so that the labor intensity of previous worker disassembly is greatly reduced, the disassembly time is short, the efficiency is high, and the recovery of the blast furnace is facilitated. The detachable tuyere cover 100 is mainly a tuyere small cover.

As shown in fig. 1, one end of the pull rod 2 is provided with a baffle 5, the baffle 5 is connected to the pull rod 2, the baffle 5 and the drag hook 4 are respectively positioned at two sides of the supporting beam, and the driving mechanism 3 is arranged between the baffle 5 and the supporting beam 1. The baffle 5 can be one, sets up the circumference in pull rod 2 rear end, also can correspond with actuating mechanism 3 position and set up a plurality ofly, and the drive power of actuating mechanism 3 of being convenient for is applyed for pull rod 2 through baffle 5 for pull rod 2 is to the direction motion of keeping away from the blast furnace wind gap, realizes the dismantlement of wind gap cover 100. The baffle 5 and the pull rod 2 are welded, and the baffle 5 is welded at the rear end of the pull rod 2 after the pull rod 2 penetrates through the through hole in the support beam 1.

The dismounting device of the blast furnace tuyere sleeve further comprises a reinforcing rib 6, wherein the reinforcing rib 6 is arranged on one side of the baffle 5, which is far away from the blast furnace tuyere, and is fixedly connected with the pull rod 2 and the baffle 5 respectively. The reinforcing ribs 6 are connected between the baffle plates and the pull rod and used for supporting the baffle plates 5 and realizing the conduction of driving force applied to the baffle plates 5 by the driving mechanism 3, so that the pull rod 2 can move conveniently. The number of the reinforcing ribs 6 can be multiple and are uniformly distributed around the pull rod 2 at intervals, and the reinforcing ribs can also be arranged only at positions corresponding to the driving mechanism 3 so as to enhance the bearing capacity of the baffle 5.

The driving mechanisms 3 are at least two and are fixed on the supporting beam 1 and uniformly distributed around the circumference of the pull rod 2. The driving mechanisms 3 are uniformly arranged, so that the pull rod 2 can be uniformly stressed, and the stable disassembly of the tuyere sleeve 100 is ensured. The number of the driving mechanisms 3 is not limited to two, and is selected according to the tension and actual needs. The body of the driving mechanism 3 is fixed on the supporting beam 1, the other end of the driving mechanism directly supports against the baffle 5, and the pull rod 2 is pushed out to the outer side of the blast furnace tuyere, so that the blast furnace tuyere sleeve is detached. Usually, when the tuyere sleeve 100 is disassembled, only the driving force when the tuyere sleeve is disassembled, namely the driving force when the pull rod 2 is pulled out is provided, so that the driving mechanism 3 is not connected with the baffle plate 5, and the driving can be realized only by abutting the output end of the driving mechanism 3 on the baffle plate 5 when the tuyere sleeve is driven. When the pull rod 2 is driven when being fed into the draw hook 4 under other conditions, the output end of the driving mechanism 3 can be fixedly connected with the baffle plate 5, and the draw hook 4 is fed into a designated position.

Alternatively, the driving direction of the driving mechanism 3 is parallel to the long axis of the drawbar 2. Guarantee that the direction of drive is unanimous with the application of force direction of dismantling tuyere cover 100, can guarantee the mobility stability of pull rod 2, improve and dismantle efficiency, in two at least actuating mechanism 3, the homonymy of pull rod 2 that at least one actuating mechanism 3 and drag hook 4 set up. Because the main bearing part on the pull rod 2 is the pull hook 4, the driving mechanism 3 and the pull rod 2 are arranged coaxially or at the same side, and larger pulling force can be provided for the pull hook 4 more favorably. Meanwhile, other driving mechanisms are uniformly distributed with the driving mechanism 3, and accidents such as deflection and the like caused by unbalanced stress of the pull rod 2 are avoided.

The driving mechanism 3 is a jack. Because the utility model is suitable for a dismounting device of blast furnace tuyere cover, consequently the load that needs is great, and operational environment is abominable, and a supporting beam 1, pull rod 2 and drag hook 4 etc. all are metal material, and the dead weight is great, consequently adopts the jack to provide sufficient dismantlement power. Of course, if the conditions permit, a driving mechanism such as an air cylinder may be used instead of the jack, and the magnitude of the driving force needs to be designed in advance.

Referring again to fig. 1, the barb 4 is wedge-shaped, being narrow at the end facing away from the support beam 1 and wide at the end facing the support beam 1. In the embodiment, the drag hook 4 with the right trapezoid cross section is provided, the drag hook is a short side close to the front end, a wide side close to the rear end is a bearing surface in contact with the tuyere sleeve 100, the contact area of the drag hook and the tuyere sleeve 100 is increased, and the drag hook is beneficial to pulling out the tuyere sleeve 100.

Optionally, the draw hook 4 is welded at the front end of the pull rod 2, and of course, the shape of the draw hook 4 is not limited to a wedge shape, and can be designed to be a circular ring shape around the axial direction of the front end of the pull rod 2, and can be integrally formed with the pull rod 2 during processing.

Wherein, the outer diameter of the pull rod 2 and the drag hook 4 is smaller than the inner diameter of the through hole on the support beam 1, and the front end of the pull rod 2 with the drag hook 4 can directly pass through the through hole in the process of installing the pull rod 2, so the pull rod 2 can be assembled with the support beam 1 after being assembled and prepared in advance. And the larger size of the through hole is beneficial to the rotation of the pull rod 2 in the through hole, so that a bearing point can be better found on the tuyere sleeve 100.

The through hole on the supporting beam 1 is coaxial with the tuyere sleeve 100. When the pull rod 2 passes through the through hole and the draw hook 4 reaches the position of the tuyere sleeve 100, the draw hook 4 can just abut against the tuyere sleeve 100, so that the positioning and the application of the disassembling force are facilitated. The through hole of the support beam 1 is arranged coaxially with the tuyere sleeve 100, and it is noted that the support beam 1 is aligned when being installed so that the front end hook 4 of the pull rod 2 is in contact with the end of the tuyere sleeve 100.

The utility model provides a dismounting device of blast furnace tuyere cover can dismantle tuyere small sleeve, wind gap middle cover and wind gap big cover, and application method is the same, specifically as follows:

firstly, one end of a pull rod 2 penetrates through a through hole in a support beam 1, then a baffle 5 and a drag hook 4 are respectively welded at two ends of the pull rod 2, wherein if the drag hook 4 is integrally formed with the pull rod 2, the rear end of the drag hook penetrates through the through hole in the support beam 1. Then, a baffle 5 and a reinforcing rib 6 are welded at the rear end of the pull rod 2, and a driving mechanism 3 is installed on the support beam 1 corresponding to the position of the baffle 5.

When the tuyere sleeve 100 needs to be disassembled, the supporting beam 1 and the pull rod 2 are integrally conveyed to the tuyere of the blast furnace, the through hole in the supporting beam 1 and the tuyere sleeve 100 are coaxially arranged, and the position of the drag hook 4 is adjusted to be opposite to the tuyere sleeve 100. And then the supporting beam 1 is supported or fixed at the tuyere of the blast furnace.

The driving mechanism 3 works to drive the pull rod 2 to the direction far away from the supporting beam 1 and the blast furnace tuyere, the drag hook 4 forms a pulling force on the tuyere sleeve 100, and the tuyere sleeve 100 is disassembled.

It can be seen that, the utility model provides a dismounting device of blast furnace tuyere cover, the dismantlement process is accomplished by actuating mechanism 3 is automatic completely, greatly reduced workman working strength, dismantle fast moreover, work efficiency is high.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a dismounting device of blast furnace tuyere cover which characterized in that includes:

the length of the supporting beam (1) is greater than the outer diameter of a blast furnace tuyere, and the supporting beam is supported outside the blast furnace tuyere; the supporting beam (1) is provided with a through hole;

the pull rod (2) penetrates through the through hole, the rear end of the pull rod (2) is arranged on the outer side of the blast furnace tuyere, the front end of the pull rod is provided with a drag hook (4), the front end of the pull rod is arranged on the inner side of the blast furnace tuyere, and the drag hook (4) can hook the tuyere sleeve (100); and

a drive mechanism (3) disposed between the tie rod (2) and the support beam (1), the drive mechanism (3) being configured to drive the tie rod (2) to move relative to the support beam (1).

2. The dismounting device of the blast furnace tuyere cover according to claim 1, characterized by further comprising a baffle (5), wherein the baffle (5) is connected to the pull rod (2), the baffle (5) and the pull hook (4) are respectively located on both sides of the supporting beam (1), and the driving mechanism (3) is arranged between the baffle (5) and the supporting beam (1).

3. The dismounting device of the blast furnace tuyere sleeve according to claim 2, further comprising a reinforcing rib (6), wherein the reinforcing rib (6) is arranged on one side of the baffle plate (5) far away from the blast furnace tuyere and is fixedly connected with the pull rod (2) and the baffle plate (5) respectively.

4. The blast furnace tuyere cover dismounting device according to claim 1, wherein at least two of said driving mechanisms (3) are fixed on said support beam (1) and uniformly arranged around the circumference of said tie rod (2).

5. The dismounting device of blast furnace tuyere cover according to claim 4, characterized in that the driving direction of said driving mechanism (3) is parallel to the long axis of said tie rod (2).

6. The blast furnace tuyere cover dismounting device according to claim 4, wherein said driving mechanism is a jack.

7. The device for dismounting a tuyere sleeve of a blast furnace according to claim 1, wherein the draw hook (4) is wedge-shaped, narrow at an end facing away from the support beam (1) and wide at an end facing the support beam (1).

8. The dismounting device of the blast furnace tuyere cover according to claim 7, characterized in that the draw hook (4) is welded at the front end of the pull rod (2) or is integrally formed with the pull rod (2).

9. The dismounting device of the blast furnace tuyere cover according to claim 1, characterized in that the sum of the outer diameters of the pull rod (2) and the pull hook (4) is smaller than the inner diameter of the through hole.

10. The device for dismounting a tuyere stock of a blast furnace according to claim 1, wherein said through hole is coaxial with said tuyere stock (100).