CN214300214U - Oxygen lance for blast furnace - Google Patents

Abstract

The utility model discloses an oxygen rifle for blast furnace, including the oxygen rifle body, the lower extreme of oxygen rifle body is equipped with the rifle head, fixed cup joints two annular fixed blocks, two on the oxygen rifle body all fixed joint has two cardboards on the annular lateral wall of annular fixed block, with one side two be symmetric distribution between the cardboard, be equipped with protection machanism on the annular lateral wall of rifle head. The utility model discloses an insert the cardboard and locate in the slot, make the rectangle fixture block in the slot insert and locate in the rectangle draw-in groove on the cardboard, and drive L type stopper by the compression spring on the bar inslot gag lever post and insert the spacing inslot of locating on the cardboard, effectively fix the cardboard joint on annular fixed block, the cardboard that conveniently damages carries out dismouting and change, damping spring cooperation connecting rod and corrosion resistant rubber goods's arc guard plate through the circular recess on the cylindrical block provides the buffering protection to the rifle head, it is impaired after avoiding the rifle head to suffer the striking, the life of extension rifle head.

Description

Oxygen lance for blast furnace

Technical Field

The utility model relates to an oxygen rifle technical field especially relates to an oxygen rifle for blast furnace.

Background

The oxygen lance is one of the main process equipments in oxygen converter steelmaking, and its performance characteristics directly affect the smelting effect and the blowing time, thus affecting the quality and yield of steel, and the effect of oxygen lance on blowing is realized by the interaction of oxygen jet stream and molten pool, and the effect mainly depends on the velocity and distribution of the jet stream when it reaches the surface of molten pool.

When the existing blast furnace oxygen lance is used in practice, the clamping plate of the existing blast furnace oxygen lance is inconvenient to disassemble, assemble and replace once damaged, and the head of the oxygen lance lacks a protective structure and is easy to damage after being impacted, so that the problem is solved by the oxygen lance for the blast furnace.

SUMMERY OF THE UTILITY MODEL

The utility model provides an oxygen rifle for blast furnace for current blast furnace oxygen rifle is when in actual use among the solution background art, in case damage, inconvenient dismouting and change carry out, and the oxygen rifle head lacks protective structure, is suffering impaired technical problem after the striking easily.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an oxygen rifle for blast furnace, includes the oxygen rifle body, the lower extreme of oxygen rifle body is equipped with the rifle head, the fixed cover has connect two annular fixed blocks on the oxygen rifle body, two all fixed joint has two cardboards on the annular lateral wall of annular fixed block, with two with one side be symmetric distribution between the cardboard, be equipped with protection machanism on the annular lateral wall of rifle head.

Preferably, the annular side wall of the annular fixed block is provided with two slots which are symmetrically distributed, the two clamping plates are respectively inserted into the two slots, the inner walls of the slots far away from the clamping plates are provided with rectangular clamping blocks, the side walls of the clamping plates in the slots are provided with rectangular clamping grooves, and the rectangular clamping blocks are inserted into the rectangular clamping grooves.

Preferably, the rectangular fixture block and the annular fixture block are integrally formed.

Preferably, all be equipped with the bar groove on the annular lateral wall that annular fixed block is close to slot top surface and bottom, two equal fixedly connected with gag lever post, two on the top surface in bar groove and the bottom equal fixedly connected with pressure spring, two on the inner wall that the slot was kept away from in the bar groove pressure spring cup joints two gag lever post settings respectively, two equal activity has cup jointed L type stopper on the gag lever post, pressure spring and L type stopper are located the lateral wall fixed connection in bar inslot, the cardboard is located the upper and lower both ends outside the slot and all is equipped with the spacing groove, two L type stopper is inserted respectively and is located two spacing inslots.

Preferably, the protection machanism includes that two blocks of fixed connection are the column shape piece of symmetric distribution on rifle head annular lateral wall, two all are equipped with the circular recess on the lateral wall that the rifle head was kept away from to the column shape piece, two equal fixedly connected with damping spring on the relative inner wall of circular recess, two the equal fixedly connected with connecting rod of one end that damping spring kept away from the circular recess inner wall, two the equal fixedly connected with arc guard plate of one end that the connecting rod kept away from the column shape piece, two the sealing washer has all been cup jointed to the one end that the connecting rod is located outside the circular recess, sealing washer and column shape piece lateral wall fixed connection.

Preferably, the arc-shaped protection plate and the sealing ring are made of corrosion-resistant rubber.

Compared with the prior art, the utility model, its beneficial effect does:

1. through inserting the cardboard and locating in the slot for in the rectangle fixture block in the slot inserted the rectangle draw-in groove of locating on the cardboard, and drive L type stopper by the compression spring on the bar inslot gag lever post and insert the spacing inslot of locating on the cardboard, effectively fix the cardboard joint on annular fixed block, conveniently carry out dismouting and change to the cardboard that damages.

2. Damping spring cooperation connecting rod and corrosion resistant rubber goods's arc guard plate on the cylindrical block in the circular slot provides the buffering protection to the rifle head, avoids the rifle head to suffer to strike the back impaired, prolongs the life of rifle head.

Drawings

FIG. 1 is a perspective schematic view of an oxygen lance for a blast furnace according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

FIG. 4 is an enlarged view of a portion of FIG. 1 at C;

FIG. 5 is a schematic structural view of an arc-shaped protection plate for an oxygen lance of a blast furnace according to the present invention;

FIG. 6 is a schematic structural view of an oxygen lance for a blast furnace according to the present invention.

In the figure: 1 oxygen rifle body, 2 rifle heads, 3 annular fixed blocks, 4 cardboard, 5 slots, 6 rectangle fixture blocks, 7 rectangle draw-in grooves, 8 bar grooves, 9 gag lever posts, 10 compression spring, 11L type spacing block, 12 spacing grooves, 13 cylindric blocks, 14 circular recesses, 15 damping spring, 16 connecting rods, 17 arc guard plates, 18 sealing washers.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, an oxygen lance for a blast furnace, including oxygen lance body 1, the lower extreme of oxygen lance body 1 is equipped with rifle head 2, it has two annular fixed blocks 3 to fix the cover on oxygen lance body 1, all fixed joint has two cardboard 4 on the annular lateral wall of two annular fixed blocks 3, be the symmetric distribution between two cardboard 4 with one side, be equipped with two slots 5 that are the symmetric distribution on the annular lateral wall of annular fixed block 3, two cardboard 4 insert respectively and locate two slots 5 in, slot 5 is kept away from and is equipped with rectangle fixture block 6 on the inner wall of cardboard 4, cardboard 4 is located and is equipped with rectangle draw-in groove 7 on the lateral wall in slot 5, rectangle fixture block 6 is inserted and is located in rectangle draw-in groove 7, rectangle fixture block 6 is the integrated into one piece setting with annular fixed block 3, rectangle fixture block 6 is inserted and is located in rectangle draw-in groove 7, effectively with cardboard 4 spacing in slot 5.

Annular fixed block 3 all is equipped with bar groove 8 on being close to the annular lateral wall of slot 5 top surface and bottom, equal fixedly connected with gag lever post 9 on the top surface of two bar grooves 8 and the bottom, equal fixedly connected with pressure spring 10 on the inner wall of slot 5 is kept away from to two bar grooves 8, two gag lever posts 9 settings are cup jointed respectively to two pressure spring 10, L type stopper 11 has been cup jointed in equal activity on two gag lever posts 9, pressure spring 10 is located the lateral wall fixed connection of bar inslot 8 with L type stopper 11, pressure spring 10's elasticity performance makes L type stopper 11 insert the spacing inslot 12 of locating on cardboard 4, effectively fix cardboard 4 joint in slot 5, the convenience is carried out dismouting and is changed to the cardboard 4 that damages, cardboard 4 is located the outer upper and lower both ends of slot 5 and all is equipped with spacing groove 12, two L type stoppers 11 insert respectively and locate two spacing inslots 12.

Be equipped with protection machanism on the annular lateral wall of rifle head 2, protection machanism includes two cylindricality pieces 13 that are the symmetric distribution on the annular lateral wall of rifle head 2 of fixed connection, all be equipped with circular slot 14 on the lateral wall that rifle head 2 was kept away from to two cylindricality pieces 13, equal fixedly connected with damping spring 15 on the relative inner wall of two circular slots 14, the equal fixedly connected with connecting rod 16 of one end that circular slot 14 inner wall was kept away from to two damping spring 15, the equal fixedly connected with arc guard plate 17 of one end that two connecting rods 16 kept away from cylindricality piece 13, damping spring 15 cooperates the arc guard plate 17 of corrosion resistant rubber goods to provide the buffering protection to rifle head 2, avoid external force striking to suffer damage to rifle head 2, the life of extension rifle head 2, sealing washer 18 has all been cup jointed to the one end that two connecting rods 16 are located outside the circular slot 14, sealing washer 18 and cylindricality piece 13 lateral wall fixed connection, arc guard plate 17 and sealing washer 18 are corrosion resistant rubber goods.

When the utility model is used, two L-shaped stoppers 11 are manually pulled to move on the limiting rods 9 in the strip-shaped grooves 8 and compress the pressure springs 10, then the clamping plate 4 is inserted into the slot 5 on the annular fixing block 3, the rectangular clamping block 6 in the slot 5 is inserted into the rectangular clamping groove 7 on the clamping plate 4, the pressure springs 10 reset after the two L-shaped stoppers 11 are loosened, the elastic property of the pressure springs 10 drives the L-shaped stoppers 11 to be inserted into the limiting grooves 12 on the clamping plate 4, the clamping plate 4 is effectively clamped and fixed on the annular fixing block 3, only the L-shaped stoppers 11 need to be pulled to be separated from the limiting grooves 12 during disassembly, then the clamping plate 4 is pulled out from the slot 5, the rectangular clamping block 6 is separated from the rectangular clamping groove 7, the damaged clamping plate 4 is convenient to disassemble and replace, when the gun head 2 is impacted by external force during operation, the arc-shaped protection plate 17 of the rubber product drives the connecting rod 16 to compress the damping springs 15 in the circular grooves 14, the damping spring 15 is matched with the connecting rod 16 and the arc-shaped protection plate 17 to provide buffering protection for the gun head 2, damage to the gun head 2 after impact is avoided, and the service life of the gun head 2 is prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides an oxygen rifle for blast furnace, includes oxygen rifle body (1), the lower extreme of oxygen rifle body (1) is equipped with rifle head (2), its characterized in that, two annular fixed block (3) have been fixed to cup joint on oxygen rifle body (1), two all fixed joint has two cardboard (4) on the annular lateral wall of annular fixed block (3), with two on one side be symmetric distribution between cardboard (4), be equipped with protection machanism on the annular lateral wall of rifle head (2).

2. The oxygen lance for the blast furnace as claimed in claim 1, wherein the annular side wall of the annular fixed block (3) is provided with two slots (5) which are symmetrically distributed, two clamping plates (4) are respectively inserted into the two slots (5), the inner wall of the slot (5) far away from the clamping plates (4) is provided with a rectangular clamping block (6), the side wall of the clamping plate (4) in the slot (5) is provided with a rectangular clamping groove (7), and the rectangular clamping block (6) is inserted into the rectangular clamping groove (7).

3. The oxygen lance for a blast furnace as claimed in claim 2, wherein the rectangular fixture block (6) and the annular fixture block (3) are integrally formed.

4. The oxygen lance for the blast furnace as claimed in claim 2, wherein the annular side walls of the annular fixed block (3) close to the top and bottom of the slot (5) are provided with strip-shaped grooves (8), the top and bottom of the two strip-shaped grooves (8) are fixedly connected with limit rods (9), the inner walls of the two strip-shaped grooves (8) far away from the slot (5) are fixedly connected with pressure springs (10), the two pressure springs (10) are respectively sleeved with the two limit rods (9), the two limit rods (9) are movably sleeved with L-shaped limit blocks (11), the pressure spring (10) is fixedly connected with the side wall of the L-shaped limiting block (11) in the strip-shaped groove (8), the upper end and the lower end of the clamping plate (4) which are positioned outside the slot (5) are respectively provided with a limiting groove (12), and the two L-shaped limiting blocks (11) are respectively inserted into the two limiting grooves (12).

5. The oxygen lance for the blast furnace as claimed in claim 1, wherein the protection mechanism comprises two symmetrically distributed cylindrical blocks (13) fixedly connected to the annular side wall of the lance head (2), the two cylindrical blocks (13) are provided with a circular groove (14) on the side wall far away from the lance head (2), the two circular grooves (14) are fixedly connected with damping springs (15) on the opposite inner walls, the two damping springs (15) are fixedly connected with connecting rods (16) at the ends far away from the inner wall of the circular groove (14), the two connecting rods (16) are fixedly connected with arc-shaped protection plates (17) at the ends far away from the cylindrical blocks (13), the two connecting rods (16) are sleeved with sealing rings (18) at the ends outside the circular grooves (14), and the sealing rings (18) are fixedly connected with the side wall of the cylindrical blocks (13).

6. The oxygen lance for a blast furnace as claimed in claim 5, wherein the arc-shaped protection plate (17) and the sealing ring (18) are made of corrosion-resistant rubber.

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