Cannon head replacement device for blocking iron notch

Abstract

The utility model discloses a gun head replacement device for blocking an iron notch, which comprises a clay gun body, a pair of symmetrical counter-pull plates extend from the end part of the clay gun body, a pair of telescopic holes are formed in the pair of counter-pull plates, a pair of threaded seats are arranged on one sides of the pair of telescopic holes, a pair of counter-pull fixers are arranged on the pair of threaded seats, and a pair of counter-pull fixers is arranged on the counter-pull fixers. A substitute gun head is arranged on one side of the clay gun body; the utility model relates to the technical field of blast furnace gun guns, in particular to a gun head replacement device for blocking an iron notch, a replacement gun head and a gun gun body are connected in a split mode, a counter-pull fixing device is arranged at the head end of the gun gun body, the counter-pull fixing device and a buckle of the replacement gun head are connected in a limiting counter-pull mode, the structure is simple, the counter-pull fixing device is not detachable, and the replacement gun head replacement device is convenient to use. And the replacement gun head is clamped in from one side of the counter-pull fixer through the clamping groove, and then counter-pull limiting and fixing are performed, so that the problem that the speed is relatively low in the disassembly and assembly process of the pull rod piece is avoided, the replacement efficiency is improved, and production accidents are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to blast furnace mud gun technical field, specifically is a kind of cannon head replacement device of iron mouth. BACKGROUND

[0002] The main role of blast furnace mud gun is to block the iron notch during the process of blast furnace tapping, to prevent high-temperature molten iron from leaking out. Modern blast furnace mud gun is usually divided into cannon body, rotating mechanism, feeding mechanism and locking mechanism. The blocking function of blast furnace mud gun is mainly driven by the rotating mechanism at the front end of the cannon body. The iron notch is blocked by the cannon head, and the mud is injected into the iron notch by the mud gun to achieve blocking.

[0003] The blast furnace mud gun machine is in a harsh working environment for a long time, especially the position of the cannon head is in contact with high-temperature molten iron for a long time. It is very easy to deform or pierce the iron notch due to the high-temperature environment. Therefore, when the cannon head deforms or blocks the pressure, the cannon head needs to be replaced. At present, the cannon head is mostly connected by pull rod. Therefore, when it is replaced, the cannon head needs to be completely removed, which greatly affects the operation time of the mud gun machine. In view of the above problems, the present case is produced after in-depth research. SUMMARY

[0004] In view of the deficiencies of the prior art, the cannon head replacement device for blocking the iron notch is provided to solve the problems of the prior art.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a cannon head replacement device for blocking the iron notch, comprising a mud gun cannon body, a pair of symmetrical anti-pull plates extending from the end of the mud gun cannon body, a pair of telescopic holes provided on the pair of anti-pull plates, a pair of threaded seats provided on one side of the pair of telescopic holes, a pair of anti-pull fixators provided on the pair of threaded seats, and a replacement cannon head provided on one side of the mud gun cannon body.

[0006] The anti-pull fixator comprises an anti-pull bolt, the anti-pull bolt is threadedly connected with the threaded seat, the head end of the anti-pull bolt is connected with an anti-pull rod, the head end of the anti-pull rod is provided with a fixed clamping block, and the diameter of the anti-pull rod matches the telescopic hole.

[0007] The tail end of the replacement cannon head extends a pair of buckles, a pair of clamping grooves are provided on the pair of buckles, the clamping grooves are half-elliptical grooves, the clamping grooves are clamped into the anti-pull rod, a limiting groove is provided on the clamping groove, and the fixed clamping block and the limiting groove are limited.

[0008] Preferably, the end of the anti-pull bolt is provided with an adjusting knob, and the anti-pull bolt and the anti-pull rod are movably connected.

[0009] Preferably, the anti-pull rod extends a guide strip in the radial direction, and a guide groove is provided on the telescopic hole corresponding to the guide strip.

[0010] Preferably, the fixed clamping block is arranged at the end of the reverse pull rod, the fixed clamping block is an arc-shaped block, and the limiting groove is an arc-shaped groove.

[0011] Preferably, the positions of the pair of reverse pull plates and the pair of buckles correspond to each other, and the cross sections of the pair of reverse pull plates and the pair of buckles are triangular.

[0012] Preferably, the substitute cannon head is a frustoconical tubular body.

[0013] Advantages

[0014] The utility model provides a cannon head alternative device of iron mouth stop, has the following advantages: the cannon head alternative device of iron mouth stop adopts split connection between the substitute cannon head and the mud cannon barrel, sets up the reverse pull fixer at the head end of the mud cannon barrel, the buckle of the reverse pull fixer and the substitute cannon head adopt limiting reverse pull connection, simple structure, the reverse pull fixer is not detachable, and the substitute cannon head is then clamped from the side of the reverse pull fixer through the clamping groove, and then reverse pull limiting fixing is carried out, avoids the problem of slow rate in the dismounting process of the pull rod piece, improves the alternative efficiency, and avoids production accidents. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a perspective structure schematic view of the cannon head alternative device of iron mouth stop.

[0016] Fig. 2 It is a perspective blasting structure schematic view of the cannon head alternative device of iron mouth stop.

[0017] Fig. 3 It is a partial sectional view structure schematic view of the cannon head alternative device of iron mouth stop.

[0018] In the drawing: 1, mud cannon barrel; 2, reverse pull plate; 3, telescopic hole; 4, threaded seat; 5, reverse pull fixer; 6, substitute cannon head; 51, reverse pull bolt; 52, reverse pull rod; 53, fixed clamping block; 54, adjusting knob; 55, guide strip; 61, buckle; 62, clamping groove; 63, limiting groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figs. 1-3The utility model provides a kind of implementation scheme: in the application process of modern blast furnace ironmaking, when the molten iron of blast furnace iron hole is discharged, to quickly close furnace cavity, mud gun machine needs to be used to plug the discharge of iron hole, the mud gun machine of present stage is often contacted with high-temperature molten iron when long-term use, very easy to appear cannon head deformation etc.

[0021] According to the description attached Figs. 1-3 It can be known that, in order to solve the above problems, the application discloses a cannon head replacement device for blocking iron hole, which comprises a mud gun barrel 1, the mud gun barrel 1 adopts a hydraulic mud gun structure, and a storage pipe section with a mud inlet is arranged at the head end of the mud gun barrel 1; the head end of the mud gun barrel 1 extends a pair of symmetrical reverse pull plates 2, a pair of telescopic holes 3 are arranged on the pair of reverse pull plates 2, the pair of reverse pull plates 2 serve as mounting positions for mounting a mud gun head, and then a pair of threaded seats 4 are arranged on one side of the pair of telescopic holes 3; a pair of reverse pull fixators 5 are arranged on the pair of threaded seats 4; a replacement cannon head 6 is arranged on one side of the mud gun barrel 1; the replacement cannon head 6 is reversely fixed by the pair of reverse pull fixators 5; when the replacement cannon head 6 needs to be replaced, the tightness of the pair of reverse pull fixators 5 is directly controlled to complete the replacement of the replacement cannon head 6.

[0022] According to the description attached Figs. 1-3 It can be known that the tail end of the above-mentioned replacement cannon head 6 extends a pair of buckles 61, a pair of clamping grooves 62 are arranged on the pair of buckles 61, the positions and shapes of the pair of buckles 61 correspond to those of the pair of reverse pull plates 2, the clamping grooves 62 are semicircular grooves, the clamping grooves 62 are clamped into the reverse pull rods 52, the clamping grooves 62 are limited by the reverse pull rods 52 through adjustment, the pair of clamping grooves 62 and the reverse pull rods 52 limit each other to fix the replacement cannon head 6; then a limiting groove 63 is arranged on the clamping groove 62, and the fixed clamping block 53 and the limiting groove 63 limit each other.

[0023] According to the description attached Figs. 1-3 It can be known that the above-mentioned reverse pull fixator 5 comprises a reverse pull bolt 51, the reverse pull bolt 51 is threadedly connected with the threaded seat 4, the reverse pull bolt 51 moves on the threaded seat 4 through rotation adjustment, the head end of the reverse pull bolt 51 is connected with a reverse pull rod 52, and the head end of the reverse pull rod 52 is provided with a fixed clamping block 53.

[0024] The reverse pull bolt 51 drives the reverse pull rod 52 to move, the reverse pull rod 52 moves in the telescopic hole 3, and the reverse pull rod 52 further drives the fixed clamping block 53 to move. The fixed clamping block 53 is inserted into the limiting groove 63, the fixed clamping block 53 is clamped into the limiting groove 63, the fixed clamping block 53 limits one side of the buckle 61, the buckles 61 on both sides of the substitute cannon head 6 clamp the reverse pull rod 52 through the clamping grooves 62, the reverse pull rod 52 limits the substitute cannon head 6 in the horizontal direction, the fixed clamping block 53 at the head end of the reverse pull rod 52 moves synchronously with the reverse pull rod 52, the fixed clamping block 53 is clamped into the limiting groove 63, the fixed clamping block 53 and the limiting groove 63 limit each other, synchronous limiting of the substitute cannon head 6 is realized, axial and vertical limiting of the substitute cannon head 6 is realized, and the substitute cannon head 6 is coaxially arranged with the mud cannon barrel 1.

[0025] As a preferred scheme, further, an adjusting knob 54 is arranged at the end of the reverse pull bolt 51, and the reverse pull bolt 51 is movably connected with the reverse pull rod 52. The adjusting knob 54 can drive the reverse pull bolt 51 to rotate.

[0026] As a preferred scheme, further, a guide strip 55 extends radially from the reverse pull rod 52, and a guide groove is arranged on the telescopic hole 3 and corresponds to the guide strip 55. In the process of linear movement of the reverse pull rod 52, the guide strip 55 and the guide groove limit the reverse pull rod 52 in the radial direction, so that rolling of the reverse pull rod 52 is avoided.

[0027] As a preferred scheme, further, the fixed clamping block 53 is fixedly arranged at the end of the reverse pull rod 52, the fixed clamping block 53 is an arc-shaped block, the corresponding limiting groove 63 is an arc-shaped groove, the fixed clamping block 53 is integrally formed with the reverse pull rod 52 in an arc-shaped block, production and manufacturing are facilitated, and the limiting groove 63 and the fixed clamping block 53 are matched through a missing-arc sector structure, so that the substitute cannon head 6 and the mud cannon barrel 1 are more closely combined.

[0028] As a preferred scheme, further, the positions of the pair of reverse pull plates 2 correspond to the positions of the pair of buckles 61, and the cross sections of the pair of reverse pull plates 2 and the pair of buckles 61 are both triangular.

[0029] As a preferred scheme, further, the substitute cannon head 6 is a truncated conical tubular body, a conical slope edge is protrudingly arranged at the tail end of the substitute cannon head 6, and a bevel groove is arranged on one side of the mud cannon barrel 1. The substitute cannon head 6 is closely combined with the bevel groove through the conical slope edge, the inner cavities of the mud cannon barrel 1 and the substitute cannon head 6 are more integrally combined, and discharging of the mud cannon is more smooth.

[0030] In summary, the iron hole plugging cannon head replacement device, the replacement cannon head 6 and the mud cannon barrel 1 are connected in a split body, the reverse pulling fixer 5 is arranged at the head end of the mud cannon barrel 1, the reverse pulling fixer 5 and the buckle 61 of the replacement cannon head 6 are connected in a limiting reverse pulling mode, the structure is simple, the reverse pulling fixer 5 is not detachable, the replacement cannon head 6 is clamped into the reverse pulling fixer 5 from one side of the reverse pulling fixer 5 through the clamping groove 62, and then reverse pulling limiting fixation is carried out, the problem that the disassembly process of the pulling rod is slow is avoided, the replacement efficiency is improved, and production accidents are avoided.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cannon head replacement device for plugging iron mortises, comprising a mud cannon barrel (1), wherein a pair of symmetrical pull plates (2) extend from the end of the mud cannon barrel (1), a pair of telescopic holes (3) are provided on the pair of pull plates (2), and a pair of threaded seats (4) are provided on one side of the pair of telescopic holes (3), characterized in that, A pair of threaded seats (4) are provided with a pair of anti-pulling fixers (5), one side of the mud gun barrel (1) is provided with a replacement gun head (6); The anti-pulling fixer (5) comprises an anti-pulling bolt (51) which is threadedly connected with the threaded seat (4), the head end of the anti-pulling bolt (51) is connected with an anti-pulling rod (52), the head end of the anti-pulling rod (52) is provided with a fixed clamping block (53), and the anti-pulling rod (52) matches the diameter of the telescopic hole (3); The tail end of the replacement gun head (6) extends a pair of buckles (61), a pair of buckles (61) are provided with a pair of clamping grooves (62), the clamping grooves (62) are half-arc-shaped grooves, the clamping grooves (62) are clamped into the anti-pulling rod (52), the clamping grooves (62) are provided with limiting grooves (63), and the fixed clamping block (53) and the limiting grooves (63) are limited each other.

2. A taphole plugging ram replacement device according to claim 1, wherein The end of the anti-pulling bolt (51) is provided with an adjusting knob (54), and the anti-pulling bolt (51) and the anti-pulling rod (52) are movably connected.

3. A taphole closure ram replacement device according to claim 2, wherein, The anti-pulling rod (52) extends a guide strip (55) in the radial direction, and the telescopic hole (3) is provided with a guide groove corresponding to the guide strip (55).

4. A taphole closure ram replacement device according to claim 3, wherein The fixed clamping block (53) is fixedly arranged at the end of the anti-pulling rod (52), and the fixed clamping block (53) is an arc-shaped block, and the corresponding limiting groove (63) is an arc-shaped groove.

5. A taphole closure ram replacement device according to claim 4, wherein, The positions of the pair of anti-pulling plates (2) and the pair of buckles (61) correspond, and the cross sections of the pair of anti-pulling plates (2) and the pair of buckles (61) are all triangular.

6. A taphole closure ram substitute device according to claim 5, wherein The replacement gun head (6) is a truncated conical tubular body.

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