JPH0867923A - Apparatus for reclaimed aluminum - Google Patents

Abstract

PURPOSE: To sufficiently secure the safety of a work by forcedly supplying flux into a flux discharging tube through a feeder arranged at the bottom part of a supplying tank. CONSTITUTION: In the supplying tank 20, e.g. a quantity of flux for one time of working is stored. The screw feeder for supplying the flux is actuated and the flux is forcedly supplied to a flux discharging tube 28 at the downstream end part of the supplying tank 20. A feeding path 30 for gas is connected to the flux discharging tube 28 and the gas is blown through and the flux supplied to the discharging tube 28 can be blown into a melting furnace 10 together with the gas. Therefore, an operator is not required to approach the melting furnace 10 during supplying the flux to the melting furnace 10. In the melting furnace 10, aluminum-made waste material is melted and the impurities are removed by blowing the flux and the gas. By this method, the necessity of supplying flux near the melting furnace by the operator can be eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention melts aluminum waste materials in a melting furnace and blows flux such as sodium chloride into the melting furnace together with nitrogen gas and other gases to remove impurities such as oxides in aluminum. The present invention relates to an aluminum recycling device adapted to be removed.

[0002]

2. Description of the Related Art Conventionally, as a means for regenerating aluminum, for example, a tube is connected to a melting furnace, a flux is supplied to the tube, and a nitrogen gas or the like is blown into the tube to melt the flux with the nitrogen gas or the like. Some are designed to blow into a furnace.

[0003]

However, in such a conventional technique, when supplying the flux to the pipe,
There is a problem in that it is necessary to ensure sufficient safety when the place where the supply work is performed is close to the melting furnace because it relies on manpower. The present invention has been made by paying attention to the problems that such conventional techniques have, and is equipped with a supply tank, the flux is forcibly supplied to the flux discharge pipe by a screw feeder, and the flux is supplied to the melting furnace together with the gas. Since it is blown in, if one operation of flux is stored in the supply tank, the worker does not need to perform the operation of supplying the flux in the vicinity of the melting furnace, and sufficient safety can be ensured. It is an object of the present invention to provide an aluminum reclaiming device as described above.

[0004]

[Means for Solving the Problems]

1 Melt waste material made of aluminum in a melting furnace (10),
To store a predetermined amount of flux in an aluminum reclaiming device in which a flux such as sodium chloride is blown into the melting furnace (10) together with nitrogen gas and other gases to remove impurities such as oxides in aluminum. A supply tank (20) is provided, and the supply tank (2
Forming a flux discharge pipe (28) at the downstream end of
In the flux discharge pipe (28), the flux in the flux discharge pipe (28) is mixed with the gas in the melting furnace (1).
Gas supply path (30) for supplying the flux to the flux discharge pipe (28) at the bottom of the supply tank (20). An aluminum reclaiming device having a screw feeder (25). 2 The gas supply path (30) is formed of a flexible hose, and the supply tank (20) is connected to the melting furnace (1).
0) The aluminum regenerator according to claim 1, further comprising a moving means (50) which is movable to a flux receiving position far from the melting furnace (10) and a flux discharging position closer to the melting furnace (10).

[0005]

In the supply tank (20), for example, one work of flux is stored. When the screw feeder (25) for flux supply operates, the supply tank (2)
Flux discharge pipe (28) formed at the downstream end of (0)
The flux is forcibly supplied without being blocked on the way.

Since the gas supply passage (30) is connected to the flux discharge pipe (28) and the gas is blown through, the flux supplied into the flux discharge pipe (28) is melted together with the gas. It can be blown into the furnace (10). Therefore, it is not necessary for an operator to approach the melting furnace (10) while supplying the flux to the melting furnace (10).

The gas supply passage (30) is formed of a flexible hose, and the supply tank (20) is located at a flux receiving position far from the melting furnace (10) and the melting furnace (10). When the flux in the supply tank (20) is replenished, the supply tank (20) is moved by the moving means (50) when the flux is replenished with the flux. It is sufficient to move from the flux discharge position to the flux receiving position. At that time, since the gas supply passage (30) is formed of a flexible hose, the gas supply passage (30) appropriately extends and bends to follow the supply tank (20). .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows an embodiment of the present invention. As shown in FIG. 2, the aluminum reclamation apparatus is one in which a flux such as sodium chloride is blown into the melting furnace 10 together with nitrogen gas and other gases to remove impurities such as oxides in aluminum. It has a supply tank 20 having a capacity of about 200 liters, which corresponds to the amount of the flux of 1., and the supply tank 20 stores a flux of sandy sodium chloride.

As shown in FIGS. 1 and 2, the supply tank 20 is fixed to a moving frame 42 which constitutes a moving means 40, and the supply tank 20 is provided above the moving frame 42.
A hopper 50 for dropping the flux is attached. The hopper 50 includes a funnel-shaped main body 51 and a dropping pipe 52 formed at a lower end portion of the funnel-shaped main body 51.
And a screw feeder 55 (its capacity is 200 to 2400 kg / h) which is installed in the dropping pipe 52 and carries out the flux to the outside. Supply tank 2
A receiving port 21 for receiving the dropped flux is provided in the upper part of 0, and a lid member 22 for closing the receiving port 21 is provided at the peripheral portion of the receiving port 21. At the bottom of the supply tank 20, a pipe-shaped forced discharge pipe 23 extending in the horizontal direction is connected, and one end of the forced discharge pipe 23 is connected to the forced discharge pipe 23 via a flow-down pipe 24 in a direction orthogonal to the forced discharge pipe 23. A flux discharge pipe 28 extending in the horizontal direction is connected. At one end of the flux discharge pipe 28,
A gas supply passage 30 which is a rubber hose is connected so that the flux in the flux discharge pipe 28 can be supplied to the melting furnace 10 together with the nitrogen gas. The gas supply passage 30 may have a flexible tubular shape. A nitrogen gas tank is connected to the extended end of the gas supply passage 30. 1.5 to 2.5 kg / c in the nitrogen gas tank
The pressure is adjusted to m ² .

A rubber hose 35 is also connected to the other end of the flux discharge pipe 28 and extends to the melting furnace 10. A supply nozzle member 36 is provided at the tip of the rubber hose 35.
Are connected. A communication pipe 29 is connected to one end side of the flux discharge pipe 28, and communicates with the inside of the supply tank 20 via a control valve 29a. The supply tank 20 is provided with a purge valve 29b. An automatic weighing machine 60 for weighing the flux in the supply tank 20 is provided below the moving frame 42.

A screw feeder 2 for flux supply for supplying a predetermined amount of flux to the flux discharge pipe 28 via the downflow pipe 24 to the forced discharge pipe 23.
5 are decorated. The carry-out capacity of the screw feeder 25 is about 500 kg / h. In the moving frame 42,
The supply tank 20 is provided with rollers that roll on the rails.
Can be moved to a flux receiving position farther from the melting furnace 10 and a flux discharging position closer to the melting furnace 10. At the flux receiving position, a flux storage tank (not shown) for supplying flux to the supply tank 20 via the hopper 51 is arranged. Next, the operation will be described. In the supply tank 20, the funnel-shaped main body 51 faces a flux storage tank (not shown) at the flux receiving position, and the flux is supplied into the supply tank 20 via the funnel-shaped main body 51 and the screw feeder 55. It The flux supplied at one time is 200 to 300 kg / 1 batch,
It is consumed in 20 to 30 minutes. That is, the flux is supplied about 2 to 3 times in one hour. Supply tank 20
When the flux is supplied to the lid member 22, the lid member 22
Close 1 and purge if necessary.

Supply tank 20 supplied with flux
Is moved by the hopper 50 from the flux receiving position to the flux discharging position. At that time, since the gas supply passage 30 is formed of a flexible hose, it extends and follows the supply tank 20. Next, when the screw feeder 25 for supplying flux is operated, the flux is forcibly discharged by a predetermined amount to the flux discharge pipe 28 via the forced discharge pipe 23 and the flow-down pipe 24. Before and after, the nitrogen gas was blown through the flux discharge pipe 28, and the flux supplied into the flux discharge pipe 28 together with the nitrogen gas was passed through the rubber hose 3
5 and the supply nozzle 36 to blow into the melting furnace 10.

The flux and nitrogen gas blown into the melting furnace 10 are combined with the oxides in the molten aluminum and float on the surface of the molten pool, and can be easily removed. When the flux in the supply tank 20 is completely discharged and the flux in the supply tank 20 is replenished, the moving means 50 may move the supply tank 20 from the flux discharging position to the flux receiving position. At that time, the gas supply passage 30 bends and follows the supply tank 20. In the above embodiment,
Although the one provided with the supply tank 20 capable of storing the flux for one batch is shown, the present invention is not limited to this, and one flux can be stored for two batches or more, and one supply tank 20 can provide two melting furnaces. You may be responsible for 10.

[0014]

According to the aluminum reclamation apparatus of the present invention, a predetermined amount of flux is stored in the supply tank, the flux is forcibly carried out to the flux discharge pipe, and nitrogen gas is blown into the flux discharge pipe to remove the flux. Since it was blown into the melting furnace together with nitrogen gas, it is not necessary for the worker to supply the flux near the melting furnace.
Sufficient safety can be ensured.

[Brief description of drawings]

FIG. 1 is a front view of an aluminum recycling apparatus showing an embodiment of the present invention.

FIG. 2 is a partial side view of the aluminum recycling apparatus showing the embodiment of the present invention.

[Explanation of symbols]

 10 ... Melting furnace 20 ... Supply tank 23 ... Forced discharge pipe 25 ... Screw feeder 28 ... Flux discharge pipe 30 ... Gas supply passage 40 ... Moving means 50 ... Hopper 51 ... Funnel-shaped main body 60 ... Automatic weighing machine

Claims (2)

[Claims] 1. A waste material made of aluminum is melted in a melting furnace,
In an aluminum reclaiming device in which a flux such as sodium chloride is blown into the melting furnace together with nitrogen gas and other gases to remove impurities such as oxides in aluminum, a supply tank for storing a predetermined amount of flux is provided. A flux discharge pipe is formed at the downstream end of the supply tank, and a gas supply passage is connected to the flux discharge pipe so that the flux in the flux discharge pipe can be supplied to the melting furnace together with the gas. An aluminum recycling apparatus, wherein a screw feeder for flux supply for forcibly supplying flux to the flux discharge pipe is arranged at the bottom of the supply tank. 2. The gas supply passage is formed by a flexible hose, and the supply tank can be moved between a flux receiving position far from the melting furnace and a flux discharging position close to the melting furnace. The aluminum reclaiming device according to claim 1, further comprising a moving means.