JPS63116090A - Wire rod charger - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a wire rod charging device for charging wire rods into a melting furnace.

"Prior Art" Methods for producing rough drawn copper wire include the SCR method and the Contilorado method. In these methods, defective wires generated during the process or in the subsequent process are charged into the shaft furnace again and melted again. At this time, in order to charge the defective wire into the shaft furnace, conventionally, a device has been used in which the defective wire is not cut but is gripped by pinch rollers and then charged into the shaft furnace.

"Problems to be Solved by the Invention" By the way, the above-mentioned defective copper wire charging device has a problem in that there is a limit to the charging speed. That is, the defective copper wire is normally charged into a shaft furnace together with the cathode and the like and remelted. Incidentally, since the cathode is generally rectangular plate-shaped, when the cathode is inserted into the furnace, considerable gaps are created between the furnace wall and the cathode and between the cathodes. However, since the above-mentioned charging device charges the copper wire into the furnace as is without cutting it, it is not possible to insert the copper wire into the gap between the furnace wall and the cathode or between the cathodes. . Moreover, since the position where the copper wire is charged is fixed, the copper wire ends up piling up in a part of the furnace. For this reason, the charging efficiency decreases and there is a limit to the charging speed.

Another method is to recoil the copper wire and charge it into the furnace, but recoil increases the cost and the recoil usually has a minimum diameter of 80 cm.

Since the axial length was 50 crrl, which was larger than the gap, there was a problem that the charging efficiency was poor and the charging speed could not be improved.

"Means for Solving the Problems" This invention was made to solve the above problems, and includes a cutting means for cutting wire rods, and a dispersion and supply of the cut wire rods into a melting furnace. The configuration includes a distributed supply means.

"Embodiment" An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 shows a defective copper wire charging device (m material charging device) 11 according to the present invention and a shaft furnace (melting furnace) equipped with this device! It is a figure showing 3. This shaft furnace 13 includes a cylindrical furnace body 15. This furnace body 15 is provided with a tap hole 17 on the lower side surface thereof, and
A charging port 19 for charging a cathode and the like is provided on the upper side surface thereof.

Further, a burner is provided on the furnace wall of the furnace body 15 at a position indicated by an arrow r3, and is configured to heat the inside of the furnace. A large number of cathodes K are placed inside the furnace body 15. Further, a substantially cylindrical furnace cover 21 is provided on the upper part of the furnace main body 15, and an exhaust gas gutter 23 is provided on the side of the furnace cover 21.

In such a shaft furnace 13, there is a charging device 1 for charging defective copper wire.
1 is provided. This defective copper wire charging device 11 is
A pinch roll (transfer means) 25 is provided. This pinch roll handles defective copper wire (wire material) W by two rolls.
A guide vibe 27 for guiding the copper wire W is provided above it.

The guide pipe 27 has an upper end bent laterally, and a rotary cutter (cutting means) 29 is disposed on the side of the upper opening. This rotary cutter 29 is provided with two rolls 31 on the upper and lower sides, and two cutters 33 are provided on the outer periphery of the rolls 31 at equal intervals in the circumferential direction. Then, the copper wire W is held by the two rolls 3I, and while being transferred laterally, the cutter 33 cuts the copper wire W into a predetermined length. Note that the cutting length of the copper wire W is 100 m.
The cutting length of the copper wire W can be changed by changing the diameter of the roll 3I. Further, in order to change the charging speed of the copper wire W, the rotational speed of the rotary cutter 31 and the pinch wheel 25 may be changed.

A funnel 35 is provided on the side of the rotary cutter 29 to receive the copper wire W cut to a certain length, and a fixed chute 37 is connected to the funnel 35. A rotary charging pipe 39 is provided below the fixed chute 37.

The rotary charging pipe 39 is disposed along the axis of the furnace cover 21 so as to penetrate through the top plate of the furnace cover 21 . This rotary charging pipe 39 is supported by a bearing 41 provided on the top plate of the furnace cover 21. +
It is rotatable around the Ir line. A turning propeller 43 is provided in the middle of the three rotary charging tubes so as to protrude outward in the radial direction. The rotating propeller 43 rotates upon receiving the exhaust gas rising inside the furnace cover 21, and rotates the rotary charging tube 39. Further, at the lower end of the rotary charging pipe 39,
A deflection nozzle (distributed supply means) 45 is provided. This deflection nozzle 45 is formed so as to be inclined in a direction that goes sideways as it goes downward. Then, it rotates in conjunction with the rotation of the rotary charging tube 39, and the copper wire passing through the tube is dispersed and dropped to the outer periphery of the space within the furnace body 15.

On the other hand, a gear 47 is provided at the upper end of the rotary charging tube 39, and a drive shaft 49 is provided via one gear (not shown) that is engaged with the gear 47. This drive shaft 49 is connected to the output shaft of a standby motor 53 via a clutch 51.

This spare motor 53 is operated when the rotary charging tube 39 cannot be rotated by the turning propeller 43,
The rotary charging tube 39 is rotated via the clutch 51 and the gear 47.

Next, the operation of the defective copper wire charging device 11 described above will be explained. First, the pinch roll 25 pulls out the defective copper wire W from the coil and transfers this defective copper wire 6w to the guide vibe 2.
7 to the rotary cutter 29. This rotary cutter 29 cuts the copper wire to a predetermined length.
and drop it into the funnel 35. Then, the copper wire that has fallen into the funnel 35 passes through the fixed chute 37 and enters the rotary charging pipe 3.
9 and falls into the furnace body 15 through the deflection nozzle 45. On the other hand, due to the exhaust gas in the furnace, the layered propeller 4
3, thereby rotating the rotary charging tube 39 and the deflection nozzle 45 provided at its lower part.

Then, the cut copper wires falling through the deflection nozzle 45 are dispersed and fall toward the outer periphery of the furnace body 15.

Then, the cut defective copper wire enters the gap between the inner wall of the furnace body 15 and the cathode, and the gap between the cathodes.

As described above, in the defective copper wire charging device ff1ll, the rotary cutter 2 for cutting the defective copper wire W is used.
Because it is equipped with 9, the furnace itself! The copper wire can be inserted into the gap between the inner wall of No. 5 and the cathode, as well as the gap between the cathodes, and the copper wire can be efficiently charged into the furnace. Furthermore, since the deflection nozzle 45 is provided, the cut copper wire can be dispersed and dropped around the outer periphery of the furnace body 15, thereby preventing the copper wire from being piled up in a part of the furnace. be able to. For this reason, the efficiency of charging defective copper wires can be improved and the charging speed can be increased. Furthermore, since the gap between the inner wall of the furnace body 15 and the cathode can be filled with copper wire, thermal efficiency can be improved, and fuel consumption can therefore be reduced. Furthermore, since the coiled defective copper wire can be continuously inserted as it is, the recoil process can be eliminated and costs can be reduced.

By the way, when charging 8a+mφ copper wire into a 30 ton shaft furnace, with conventional equipment, it is approximately 1 ton/b.
Our charging speed was at its limit. On the other hand, in the defective copper wire charging device 11 of the present invention, the cutting length is 300 am.
With melting fi 22 ton/hour and copper cathode charging fi 120 ton/hour, it is possible to increase the charging speed of defective copper wire to 2 ton/hour, which is twice the charging speed compared to conventional methods. We were able to. In addition, the fuel consumption m of the shaft furnace before charging the defective copper wire is copper 1
The average weight was 27 kg per ton, but after charging, 1 ton of copper
The average weight per ton was 24 kg.

In the above embodiment, a defective copper wire charging device is used as the wire charging device, but it is not limited to this, and the wire to be charged may be other wire material other than defective copper wire. There may be.

"Effects of the Invention" As explained above, according to the present invention, since the present invention includes a cutting means for cutting the wire rod and a dispersion supply means for dispersing and supplying the cut wire rod into the melting furnace, The cut wire rods can be distributed and charged into the furnace, and can also be charged into the gap between the furnace wall and the furnace contents and between the furnace contents, so that the wire rods can be charged easily. The effect is that the input speed can be improved, the thermal efficiency can be improved, and the amount of fuel consumption can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention. 11...Charging device for defective copper wire (wire rod charging V!
l), 25...Pinch roll (transfer means), 2
9...Rotary cutter (cutting means), 45
...Deflection nozzle (distributed supply means), W...
・・Defective copper wire (wire material).

Claims (1)

[Claims] A wire rod charging device equipped with a transfer means for transferring a wire rod into a melting furnace, the wire rod comprising a cutting means for cutting the wire rod, and a dispersion supply means for dispersing and supplying the cut wire rod into the melting furnace. Charging device.