JPS6156256A - Metallic blowing device - Google Patents

Abstract

PURPOSE:To recollect the different type and mixed metal scrap efficiently and separately by connecting a metal blowing oven to circulate and flow hot air in an oven room with a molten metal holding oven to receive and discharge a molten metal and hot air in one body. CONSTITUTION:On an oven bed 9 of a metal blowing oven 1, a mixed scrap is stacked to blow hot air into an oven room 6 from a burner 2 for blowing. How air is guided on a top wall 8 in an inclined room, turned by an internal wall 7, circulated to a side wall 3 from an inclined oven bed 9 to heat the mixed scrap equally through the clearance of the mixed scrap on the oven bed 9. At that time, the specified metal is molten by defining hot air at the specified temperature. The molten metal is flown into a molten metal holding oven 12 with hot air through a penetrating pore 13 to hold the still condition by hot air, and floating of solid foreign matters and discharge of hydrogen gasses are executed. When an amount of molten hot water becomes constant, it is taken out and recollected through a hot water drawing pore 16 properly.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates primarily to a metal blowing device which is novel and has great industrial applicability, primarily for the purpose of effectively separating and recovering metal scrap containing a mixture of different metals.

Recently, there has been a rapid increase in the amount of mixed splat, which is a mixture of various metals such as copper, aluminum, zinc, etc., with a focus on iron and steel. Although development is a concern in this industry, it is a well-known fact that no effective product has yet appeared that can immediately meet the demands of this industry because the combinations of dissimilar metals have become extremely complex.

An object of the present invention is to completely meet the recent demands of the industrial world regarding the separate collection of mixed splat using a novel configuration.

Next, the configuration of the device of the present invention will be specifically explained with reference to the drawings showing one embodiment.

(1) is a metal composition furnace which is a main part of the present invention, and (2) is a composition burner disposed on the upper part of one side wall (3) of the metal composition furnace (1), The structure is such that the components of a plurality of metals can be separated by the difference in melting temperature of different metals using oil or gas as a heat source.

Incidentally, FIG. 1 shows, as an example of the composition burner (2), an oil burner that supplies oil from a fuel oil source (4) to the composition burner (21) via an oil supply device (5). The embodiment is shown below.

(6) is the interior of the mixing furnace, and (7) is the interior of the mixing furnace (
6), the inner wall directly facing the first side wall (3), (
8) is the top wall of the inner chamber, which is formed to be inclined downward with respect to the horizontal plane, and guides the hot air from the component burner (2) disposed above the first side wall (3). The first side wall (3) is configured so as to come into oblique contact with the corresponding inner wall (7).

(9) is a hearth in the atomization furnace interior chamber (6),
The inner wall (7) is formed from the bottom toward the first side wall (3) in a downwardly inclined shape with respect to the horizontal plane, and as described above, the inner wall (7)
The structure is such that the hot air that reverses when it collides with the hearth (9) can be made to flow directly above the floor surface, thereby appropriately melting the objects to be heated made of multiple metals that are placed and stacked on the hearth (9). As a result, the molten metal naturally flows down in the direction of the first side wall (3), that is, toward the burner (2) for dissolving components, with a downward slope. Therefore, the hearth (9) is always Retains the appearance of a dry hearth.

Note that the first section 1 shows a configuration in which the front door 0υ can be opened and the object to be heated can be placed on the hearth (9), but the canopy 11
It goes without saying that the canopy can be opened and closed so that the object to be heated can be placed on the hearth (9) by opening the canopy.

Next, 0 hot water is a molten metal holding furnace that is integrally connected to the metal component mixing furnace (1), and is a hearth (9) below one side wall (3) of the metal component mixing furnace (1). ) Receive hot air mixed with high-temperature waste gas accompanying molten metal and metal components flowing down the hearth (9) as described above through the through hole 0 formed in the downward end corresponding part. The molten metal stored in the molten metal holding furnace interior chamber Q41 is kept warm by hot air mixed with high-temperature waste gas, and the molten metal is kept in a calm state. The molten metal is cleaned by floating the original foreign matter and spontaneously releasing hydrogen gas. In addition, through hole a□
□□ may be singular or plural.

u9 is a waste gas exhaust hole disposed in a suitable position on the canopy of the molten metal holding furnace 2, which discharges the waste gas from the molten metal holding furnace inner chamber Q41; It is a drain hole that opens at the bottom of the outside, and has a constant diameter of 1.
The held molten metal is appropriately led out and dropped through the drain hole Ua+, and is cast into, for example, an ingot case Uη disposed directly below the drain hole fi[9.

In the apparatus of the present invention, as shown in Fig. 1, a holding furnace auxiliary burner α&, which is connected to the fuel oil source (4) and oil supply device (5), is installed at an appropriate location in the molten metal holding furnace (2). However, it is desirable to appropriately raise the temperature inside the molten metal holding furnace α2 to prepare for molten metal processing such as slag removal, degassing, and component adjustment, and refining of secondary alloy or cable metal.

In addition, 09 in the drawing is a molten metal holding furnace (a slag discharge port arranged at a suitable place).

In the apparatus of the present invention, with the above-described configuration, the hot air sent into the atomization furnace interior (6) by the atomization burner (2) is directed downwardly as shown by the arrow in FIG. Guided by the top wall (8) of the inner chamber, the course is deflected, collides with the inner wall (7) at an angle, and is reversed due to the presence of the inner wall (7), causing the furnace to tilt downward. It flows directly above the floor (9) in the direction of the first side wall (3), and in the flow process, it passes through the gap between the objects to be heated that are placed and stacked on the hearth (9), and the objects to be heated will be heated evenly.

In this case, it goes without saying that specific substances in the mixed scrap, which is the object to be heated, are melted by the appropriately set hot air temperature in the component burner (2). , a starter motor, and a Dynamoya carburetor, mixed scraps mainly made of iron/steel and aluminum alloy were placed and stacked on the hearth (9) as objects to be heated, and hot air at about 800°C was heated as described above. If the aluminum alloy is then circulated to the blowing furnace inner chamber (6), only the aluminum alloy will be melted and the iron and steel will remain.

In the apparatus of the present invention, not only the metal is reliably blown away as described above, but also the downward inclination of the hearth (9) causes the molten metal to flow over the hearth (9) under its own weight toward the side wall (1). 3
) direction, and therefore the hearth (9) always maintains the aspect of a dry hearth, there is no chance of solid-liquid contact between the insoluble matter remaining on the hearth (9) and the flowing molten metal. The time required for this process is extremely short, and this is the reason for maximizing the metal blowing effect.

Furthermore, in the apparatus of the present invention, the hearth (9) is connected to the hearth (9) through a through hole (131) bored in a portion corresponding to the downward end of the hearth (9) below one side wall (3) of the metal blowing furnace (1). A molten metal holding furnace (1 powder) connected integrally with a metal blowing furnace (1), which receives flowing molten metal and hot air and can appropriately discharge molten metal through a lower drain hole (161). With this configuration, in an organic relationship with the new configuration of the metal blowing furnace (1), it is possible to extremely effectively keep the molten metal warm and treat the molten metal using waste heat in the molten metal holding furnace uz, and in that respect, C It has great industrial applicability, and if an auxiliary burner α is added to the molten metal holding furnace O, the above-mentioned effects will be further enhanced.

[Brief explanation of the drawing]

Each of the drawings shows one embodiment of the device of the present invention, with Figure 1 being a perspective view of the whole, and Figure 2 being a longitudinal sectional side view of the main part. In the drawing, (1) is the metal blowing furnace, (2) is the blowing burner, (3) is the 1 side wall, (6) is the inside of the blowing furnace, (7) is the inner square, side wall, (8) is the top wall of the inner chamber, (9) is the hearth, 02+
is a molten metal holding furnace, a□□□ is a through hole, and [1■ is a drain hole.

Claims (1)

[Claims] 1. Hot air from a blowing burner (2) disposed above the side wall (3), which is capable of blowing multiple metals apart due to the difference in melting temperature of different metals. , Furnace interior (
The inner wall (7) directly facing the above-mentioned 1 side wall (3) in 6)
A downwardly inclined inner chamber top wall (
8), and is inclined downward from the bottom of the inner wall (7) in the direction of the first side wall (3), so that the hot air that is reversed by the inner wall (7) flows directly above the floor surface, and is placed on the floor surface. A metal blowing furnace (1) having a hearth (9) which melts the objects to be heated which are placed and laminated appropriately and causes the molten metal to flow down, and the lower side of one side wall (3) of the metal blowing furnace (1). The molten metal and hot air flowing down the hearth (9) are received through the through hole (12) bored in the corresponding part of the downward end of the hearth (9), and the hot air is received through the lower drain hole (16). A metal blowing device is formed by integrally connecting both a molten metal holding furnace (12) and a molten metal holding furnace (12) that can appropriately discharge molten metal. 2. The metal blowing device according to claim 1, wherein the molten metal holding furnace (12) comprises a holding furnace auxiliary burner (18) for temperature raising.