CN218372381U

CN218372381U - Conduit device of wire feeder

Info

Publication number: CN218372381U
Application number: CN202222119811.6U
Authority: CN
Inventors: 高江; 张立峰; 李权辉; 杨文�; 黄华; 任强; 王伟健
Original assignee: North China University of Technology; Yanshan University; Nanjing Iron and Steel Co Ltd
Current assignee: North China University of Technology; Yanshan University; Nanjing Iron and Steel Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-01-24
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses a guide pipe device of a wire feeder, which comprises a guide pipe of the wire feeder and a lifting driving mechanism arranged on one side of the guide pipe of the wire feeder, and is characterized in that the guide pipe of the wire feeder comprises a fixed pipe body and a high temperature resistant pipe body, and the high temperature resistant pipe body is slidably sleeved at the lower end of the fixed pipe body; the lifting driving mechanism drives the high-temperature-resistant pipe body to ascend or descend along the fixed pipe body. The high temperature resistant pipe body of the utility model can be lifted up and down along the fixed pipe body, the distance between the high temperature resistant pipe body and the liquid level of the steel ladle is adjusted, and the burning loss of the high temperature resistant pipe body is reduced; the transverse offset of the calcium line entering the molten steel is small, and the stability of the calcium treatment effect is improved.

Description

Conduit device of wire feeder

Technical Field

The utility model relates to a wire feeder device especially relates to a pipe device of wire feeder.

Background

In the smelting process of molten steel, the aluminum can effectively reduce the oxygen content in the molten steel to a lower level. However, a large amount of alumina inclusions can be generated by adding aluminum, which easily causes nozzle clogging of a continuous casting machine, influences the smooth operation of the continuous casting process and causes the reduction of product performance. Therefore, the calcium metal is added into the molten steel, and the alumina inclusion in the molten steel is modified into liquid calcium aluminate, so that nozzle nodulation is reduced, smooth continuous casting is ensured, and the product quality is improved. Compared with alloys of aluminum, silicon, manganese, etc., calcium has a lower melting point, a lower solubility in steel, and a higher vapor pressure. Therefore, the calcium alloy is difficult to be added into the molten steel, resulting in low and unstable calcium yield.

At present, in the calcium treatment process of molten steel, a calcium wire is fed into molten steel through a guide pipe by a wire feeding machine, the guide pipe in the calcium feeding process is generally made of steel materials, if the guide pipe is close to the surface of the molten steel, the calcium wire is easy to burn and deform, and if the guide pipe is far away from the surface of the molten steel, the calcium wire is easy to accumulate on the surface of the molten steel, so that the calcium wire cannot enter the molten steel, and the yield of calcium is reduced. In addition, the diameter of the guide tube is generally larger, so that the speed and the direction of the calcium wire are deviated and fluctuated when the calcium wire is discharged from the guide tube, the instability of the calcium treatment operation process is increased, the calcium yield is reduced, and the calcium wire is easier to splash.

SUMMERY OF THE UTILITY MODEL

The invention aims to: the utility model aims at providing a realize wire feeder pipe of stable feed of calcium line to improve the calcium yield of molten steel.

The technical scheme is as follows: the guide pipe device of the wire feeder comprises a guide pipe of the wire feeder and a lifting driving mechanism arranged on one side of the guide pipe of the wire feeder, and is characterized in that the guide pipe of the wire feeder comprises a fixed pipe body and a high temperature resistant pipe body, and the high temperature resistant pipe body is slidably sleeved at the lower end of the fixed pipe body; the lifting driving mechanism drives the high-temperature-resistant pipe body to ascend or descend along the fixed pipe body.

The utility model discloses a high temperature resistant pipe body passes through the interval between regulation that lift actuating mechanism can be convenient and the ladle liquid level, not only can reduce the scaling loss of high temperature resistant pipe body, improves its life, can reduce calcium line entering ladle liquid level lateral displacement with the suitable distance of ladle liquid level moreover, improves the calcium yield.

Preferably, the lower end of the high-temperature resistant pipe body is provided with a wire clamping port, and the inner diameter of the wire clamping port is smaller than the inner diameter of the high-temperature resistant pipe body to form a necking structure. The wire clamping port arranged at the lower end of the high-temperature resistant pipe body can reduce the transverse displacement of the calcium wire during blanking, and can further improve the calcium yield.

Preferably, the upper end of the high-temperature resistant pipe body is nested at the lower end of the fixed pipe body to form a quick connection structure.

Preferably, the lifting driving mechanism comprises a supporting column and a lifting sleeve sleeved on the supporting column, and the lifting sleeve is in transmission connection with the supporting column through a driving assembly.

Preferably, one side of the lifting sleeve is hinged with a supporting seat for installing a guide pipe of the wire feeding machine. The supporting seat can be lifted along with the lifting sleeve, and the included angle between the guide pipe of the wire feeding machine and the liquid level of the steel ladle can be adjusted by adopting the mounting seat which is glued with the lifting sleeve, so that the included angle of the calcium line entering the liquid level of the steel ladle can be adjusted.

Preferably, the lifting driving mechanism comprises a transmission screw rod, a screw sleeve sleeved on the transmission screw rod and a driving motor, and the driving motor is in transmission connection with the transmission screw rod through a transmission assembly. The driving motor adopts a stepping motor or a servo motor, transmits power to the transmission screw rod through the transmission assembly, and then drives the screw sleeve to do lifting motion.

Preferably, one side of the wire sleeve is connected with a mounting seat for clamping a guide pipe of the wire feeding machine; support guide rods are longitudinally arranged on two sides of the transmission screw in parallel, and support guide sleeves are arranged on the support guide rods in a sliding manner; the rear side of the mounting seat is respectively fixedly connected with the two supporting guide sleeves. This kind sets up the mount pad and does the lift in-process along with the silk cover, through supporting guide pin bushing and supporting guide pole cooperation, keeps the mount pad at the lift in-process steady operation.

Has the advantages that: compared with the prior art, the utility model has the advantages of as follows: 1. the high-temperature-resistant pipe body can be lifted up and down along the fixed pipe body, the distance between the high-temperature-resistant pipe body and the liquid level of the steel ladle is adjusted, the burning loss of the high-temperature-resistant pipe body is reduced, and the service life of the guide pipe of the wire feeding machine is prolonged; 2. the transverse offset of the calcium line entering the molten steel is small, and the stability of the calcium treatment effect is improved.

Drawings

FIG. 1 is a schematic perspective view of the device of the present invention;

fig. 2 is a schematic structural view of a first embodiment of a lifting driving mechanism of the device of the present invention;

FIG. 3 is a front view of a second embodiment of a lift drive mechanism of the apparatus of the present invention;

fig. 4 is a right side view of a second embodiment of the lift drive mechanism of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

Example 1:

as shown in fig. 1, the utility model discloses a pipe device of wire feeder, including wire feeder pipe 1 and the lift actuating mechanism 2 of locating wire feeder pipe one side, wire feeder pipe 1 includes fixed body 3 and high temperature resistant body 4, and fixed body 3 makes for the carbon steel, and high temperature resistant body 4 adopts the corundum material to make. The inner diameter of the fixed pipe body 3 is 50mm, and the outer diameter is 60mm; the inner diameter of the high-temperature-resistant pipe body 4 is 65mm, the outer diameter of the high-temperature-resistant pipe body 4 is 75mm, the high-temperature-resistant pipe body 4 is slidably sleeved on the outer side of the fixing pipe body 3 to form a quick connection structure, the quick connection structure can adopt a conventional buckle structure so as to facilitate replacement of the high-temperature-resistant pipe body, the distance between the lower end of the high-temperature-resistant pipe body 4 and the liquid level of a steel ladle is controlled to be 300 to 500 mm by controlling the lifting motion of the high-temperature-resistant pipe body 4, the burning loss of the high-temperature-resistant pipe body can be reduced by adjusting the distance between the high-temperature-resistant pipe body and the liquid level of the steel ladle, and the service life of a guide pipe of a wire feeder is prolonged. The lower end of the high temperature resistant pipe body 4 is provided with a wire clamping port 5, and the wire clamping port 5 is in a round table shape; the inner diameter of the wire clamping port 5 is 30-35mm, the outer diameter is 40-45mm, the length is 30-50mm, the inner diameter of the wire clamping port 5 is smaller than the inner diameter of the high-temperature resistant pipe body 4 to form a necking, the calcium wire firstly passes through the fixed pipe body to be gradually straightened, then passes through the high-temperature resistant pipe body to gradually enter the wire clamping port, the wire clamping port can transversely limit the calcium wire, so that the transverse offset of the calcium wire entering the liquid level of the steel ladle is reduced, the stability of the calcium wire entering molten steel is improved, the burning loss of the calcium wire on the surface of the molten steel is reduced, and the calcium yield is improved.

As shown in fig. 2, the lifting driving mechanism 2 includes a supporting column 21 and a lifting sleeve 22 sleeved outside the supporting column, the lifting sleeve 22 is in transmission connection with the supporting column 21 through a driving assembly 23, and the driving assembly 23 drives the lifting sleeve to move up and down along the supporting column. In a specific embodiment, the driving assembly 23 comprises a guiding rack 25 arranged along the height direction of one side of the supporting column 21, a driving gear 26 engaged with the guiding rack is rotatably arranged on one side of the lifting sleeve 22, a driving handle 27 is arranged at the shaft end of the driving gear, and the height of the lifting sleeve on the supporting column can be adjusted by rotating the driving handle 27, so that the distance between the supporting seat and the upper high-temperature resistant pipe body thereof and the liquid level of the steel ladle can be adjusted; it should be noted that the driving assembly may also adopt a chain wheel and chain structure or a belt wheel structure to achieve the function, which is not described herein. Lifting sleeve 22 one side is equipped with support ear piece 28, supports ear piece 28 outside one end and 24 hinged joints of supporting seat, and supporting seat 24 can be rotatory along supporting ear piece to the contained angle of adjustable high temperature resistant pipe body and ladle liquid level realizes the regulation that the calcium line got into the molten steel angle.

Example 2:

as shown in fig. 3-4, based on the guide tube structure of the yarn feeder in embodiment 1, in this embodiment, the lifting driving mechanism 2 includes two support guide rods 026 disposed longitudinally in parallel and a transmission lead screw 021 disposed between the two support guide rods, a support guide sleeve 027 is slidably sleeved on the support guide rods 026, a corresponding sleeve 022 is sleeved on the transmission lead screw, and the support guide sleeve 027 and the sleeve 022 are respectively and fixedly connected to the mounting base 025. The drive screw 021 bottom is connected with driving motor 023 transmission through transmission assembly 024, and driving motor 023 can select servo motor or step motor, and transmission assembly 024 can select gear drive, chain drive or drive belt drive mode. The bracing piece is equipped with in parallel on one side of the drive screw, and locus sensor 028 is installed respectively to the lower extreme on the bracing piece, and locus sensor can be used to monitor supporting seat lift distance. When the device works, the driving motor drives the transmission lead screw to rotate and drives the screw sleeve and the supporting seat on the screw sleeve to do lifting motion, so that the height between the high-temperature-resistant pipe body and the liquid level of the steel ladle is adjusted.

The utility model discloses a theory of operation or working method:

the guide pipe of the wire feeder is connected to the wire feeding end of the wire feeder, the calcium wire gradually enters the fixing pipe body from the wire coil, the calcium wire is gradually straightened when passing through the fixing pipe body and then gradually enters the wire clamping port after passing through the high-temperature-resistant pipe body, the matching degree of the inner diameter of the wire clamping port and the diameter of the calcium wire is high, the calcium wire can be transversely limited through the wire clamping port, the transverse offset of the calcium wire entering the liquid level of the steel ladle is reduced, the stability of the calcium wire entering molten steel is improved, the burning loss of the calcium wire on the surface of the molten steel is reduced, and the calcium yield is improved.

Claims

1. The guide pipe device of the wire feeder comprises a guide pipe (1) of the wire feeder and a lifting driving mechanism (2) arranged on one side of the guide pipe of the wire feeder, and is characterized in that the guide pipe (1) of the wire feeder comprises a fixed pipe body (3) and a high-temperature-resistant pipe body (4), and the high-temperature-resistant pipe body (4) is slidably sleeved at the lower end of the fixed pipe body (3); the lifting driving mechanism (2) drives the high-temperature-resistant pipe body (4) to ascend or descend along the fixed pipe body (3).

2. The guide tube device of the wire feeding machine as claimed in claim 1, wherein a wire clamping port (5) is provided at a lower end of the high temperature resistant tube body (4), and an inner diameter of the wire clamping port (5) is smaller than an inner diameter of the high temperature resistant tube body (4) to form a necking structure.

3. The guide pipe device of the wire feeding machine according to claim 1, characterized in that the upper end of the high temperature resistant pipe body (4) is nested at the lower end of the fixed pipe body (3) to form a quick connection structure.

4. The guide pipe device of the wire feeding machine according to claim 1, characterized in that the lifting driving mechanism (2) comprises a supporting column (21) and a lifting sleeve (22) sleeved on the supporting column, and the lifting sleeve (22) is in transmission connection with the supporting column (21) through a driving assembly (23).

5. The conduit device of the wire feeder according to claim 4, wherein the driving assembly (23) is a rack and pinion structure, a sprocket and chain structure, or a pulley mechanism.

6. The guide tube device of the wire feeder according to claim 4, wherein a support seat (24) for mounting the guide tube (1) of the wire feeder is hinged to one side of the lifting sleeve (22).

7. The guide tube device of the wire feeder according to claim 1, wherein the lifting driving mechanism (2) comprises a transmission screw (021), a wire sleeve (022) sleeved on the transmission screw, and a driving motor (023), and the driving motor (023) is in transmission connection with the transmission screw (021) through a transmission assembly (024).

8. The guide tube device of the wire feeder according to claim 7, wherein a mounting seat (025) for clamping the guide tube (1) of the wire feeder is connected to one side of the wire sleeve (022); two sides of the transmission lead screw (021) are longitudinally provided with a support guide rod (026) in parallel, and a support guide sleeve (027) is arranged on the support guide rod (026) in a sliding manner; the rear side of the mounting seat (025) is respectively fixedly connected with two supporting guide sleeves (027).

9. The conduit device of a wire feeder according to claim 7, wherein the transmission assembly (024) is a gear structure, a sprocket structure, or a pulley mechanism.