KR100386724B1 - Aluminum compound smelting furnace - Google Patents

Abstract

The present invention relates to a composite melting furnace of aluminum, and more particularly, to allow a molten metal to flow down through a stall stall from a melting tower installed at an upper portion of the insulating chamber so that the molten metal can maintain a constant temperature in the insulating chamber. The dissolving tower is installed on the upper part of the insulation chamber in which the molten metal is contained, so it is highly effective in the waste heat recovery and preheating the material with this heat, so that the dissolution rate is fast and the melting efficiency can be increased. This is excellent. Particularly, in the present invention, in a typical aluminum melting furnace that forms an inner wall of refractory materials, a melting hole is provided at a material inlet equipped with a door, a burner for dissolving the material, and an exhaust port at a discharge port through which combustion gas is discharged, Lost casing is coupled to receive the material and the molten molten metal flows down, and the rostol casing is coupled to the upper end of one side of the insulation chamber is opened, the molten metal is introduced and the other side maintains a constant temperature of the molten metal Characterized in that consisting of a main body provided with a outlet for taking out the heating element and the molten metal.

Description

By compound melting of aluminum {ALUMINUM COMPOUND SMELTING FURNACE}

The present invention relates to a melting furnace of aluminum, and more particularly, to a complex melting furnace of aluminum to maintain a constant temperature in the insulation chamber by flowing the molten metal through the rostol casing from the melting tower installed on the upper portion of the insulation chamber.

In general, the melting furnace (爐) is a material (ingot) formed of aluminum to a certain size to dissolve at a high temperature of about 700 ~ 740 ℃ to put the molten metal in the insulation chamber. After that, the molten metal is poured into a mold and die casting or casting is performed. The molten aluminum melted in the melting furnace is melted to an appropriate temperature and is contained in the heating furnace. The temperature of the molten metal remaining in the heating furnace needs to be maintained at an optimal temperature until die casting or casting. The initial temperature of the aluminum molten metal reaches about 700 ~ 740 ℃, because it is impossible to maintain the temperature through the thermostat itself to manage the temperature of the molten metal by artificial heating means.

These melting furnaces are rapid melting, such as Super Melter, Jet Melter, etc.The melting chamber for dissolving the material and the insulating chamber for storing the molten molten metal are manufactured and installed separately. In addition, there were many difficulties in installation place and operation method and inefficient problem.

In addition, it takes up a lot of space by inducing the molten metal to flow through the passage provided when it flows into the warming chamber, and foreign substances other than aluminum molten metal are dissolved and added to other materials so that they can be treated poorly. There was a problem that the loss of manpower caused by frequent cleaning.

The present invention is to overcome the above-mentioned conventional problems, the object of the present invention is that the molten molten metal in the melting tower flows through the rostol casing is directly contained in the heat insulating chamber to maintain a constant temperature of the molten aluminum To provide a combined melting furnace.

SUMMARY OF THE INVENTION An object of the present invention is to provide a composite melting furnace of aluminum to automatically input a certain amount of aluminum material.

In order to achieve the above object, the present invention is a conventional aluminum melting furnace that forms an inner wall of the refractory, the door is equipped with a material inlet and a burner for dissolving the material and the exhaust port is installed in the exhaust port discharge exhaust outlet, Lost casing is coupled to the lower end of the melting tower to receive the material and the molten molten metal flows down, and the rostol casing is coupled to the upper end of one side of the insulating chamber is opened, the molten metal is introduced and the other side Characterized in that consisting of a main body provided with a heating element for maintaining a constant temperature of the molten metal and the outlet for taking out the molten metal.

1 is a cross-sectional view showing the center of the composite melting furnace of aluminum according to an embodiment of the present invention.

Figure 2 is a side view showing a part of the composite melting furnace of aluminum according to the present invention.

3 is a cross-sectional view taken along the line A-A of Figure 1 of the present invention.

<Description of the symbols for the main parts of the drawings>

10: Melting Tower 11: Material Inlet

12: door 14: burner

16: outlet 17: exhaust

18: canopy 19: damper

20: Lost casing 22,40: Refractories

24: passage 25: rostol section

28: flange portion 30: main body

31: heat insulation chamber 33: inlet

34: heating element 36: tube

37: sightpiece 38: cover

39: outlet 40: refractory

50: lifting device 51: frame

52: drive motor 54: guide portion

100: material

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in describing the present invention, detailed descriptions of related well-known functions or configurations will be omitted if they may obscure the gist of the present invention. 1 is a cross-sectional view showing the composite melting furnace of aluminum according to the preferred embodiment of the present invention in the center, Figure 2 is a side view showing a partial cutaway of the composite melting furnace of aluminum according to the present invention. 1 and 2, a composite melting furnace of aluminum according to the present invention is shown. In the composite melting of aluminum according to the present invention, the exhaust port 17 is installed in the material inlet 11 having the door 12 mounted thereon, the burner 14 dissolving the material 100, and the exhaust port 16 through which the combustion gas is discharged. And a melting tower 10 forming an inner wall as a refractory including a heat insulating material (hereinafter referred to as 'refractory') and a lower end of the dissolving tower 10 to receive the material 100 and melted melt flows. Rotolol casing (20) to be lowered, the upper side is opened and the upper side of the heat insulating chamber (31) forming an inner wall of the refractory 40, the rostol casing 20 is coupled to the molten metal is drawn in The side portion includes a main body 30 having a heating element 34 for maintaining a constant temperature of the molten metal and an outlet 39 for discharging the molten metal. The exhaust port 17 is provided with a canopy 18 which protrudes upward and mixes combustion gas and external air, and a normal damper 19 for opening / closing a discharge passage of the mixed gas in which the combustion gas and air are mixed.

3 is a cross-sectional view taken along the line A-A of FIG. 1 of the present invention. An opening 15 communicating with the outside is formed at one lower side of the dissolution tower 10 to dissolve the material 100 placed on the top of the rostol 25 and remove the remaining bolts and nuts. It was made. The burner 14 for melting the material 100 is a conventional one for dissolving an aluminum material with a flame that burns the gas supplied by being connected to a gas supply device, and is installed to be inclined at one side of the dissolution tower and installed outside. ) Compressed air and gas are mixed and injected into the flame. The door 12 is hinged to the opening / closing cylinder 13 of one side and opened / closed to one side upward. In addition, the exhaust port 17 is provided with a temperature sensor 21 for detecting the temperature of the combustion gas and the temperature of the internal combustion chamber of the melting tower 10 is adjusted by adjusting the thermal power of the burner (14).

The main body 30 is provided with a partition 32 across the middle of the heat insulating chamber 31 and both spaces are connected to the lower passage. One side of the insulation chamber 31 is formed with a viewing hole 37 for viewing the inside from the outside, and the other side is covered with a cover 38 on which the heating element 34 is mounted. Add the additive or remove impurities through the sight hole (37), and as well as the sight hole (37) is installed in the opening portion of the melting furnace outside the packing member preferably heat resistant asbestos packing to reduce the heat loss . The heating element 34 is enclosed in a heat insulating chamber 31 is wrapped in a tube 36, the electric heater is most preferred and excellent in strength and heat resistance. The upper end of the heating element 34 is fastened to the cover 38 by a flange, a clamp or the like detachably. In addition, the water level sensor 35 is installed at the upper end of the heat insulating chamber 31 to detect and signal the high water level of the molten metal, and to install a temperature sensor (not shown) to adjust the amount of heat generated by the heating element 34.

The inner wall of the melting tower 10 and the main body 30 is made of a refractory 40 to increase the heat storage amount and minimize the loss of the dissipation of the outer wall, which is a general silica board, B-5, SK-36 #, Refractory bricks, castables, etc. are applied. The stoll casing 20 has a refractory portion 22 having a predetermined width and is arranged at regular intervals so that the stoll portion 25 having a passage 24 therebetween is combined with the flange portion 28 of the outer edge. It is fixed. The melting tower 10, the lost stall casing 20 and the main body 30 are formed at the top and the bottom of the flange portion 28a corresponding to the flange portion 28 so that they can be fastened and separated from each other and can be easily cleaned inside. Let's do it.

On one side of the main body 30, the receiving opening 56 containing the material 100 is lifted along the guide portion 54 of the frame 51 on which the driving motor 52 is mounted. A lifting device 50 for supplying 100 is provided. The frame 51 has a predetermined height and is installed to be inclined, and a power transmission means for connecting the operation port 58 and the upper driving motor 52 and the lower portion is installed. The power transmission means preferably consists of a chain, a chain gear and an idle roller.

The composite melting furnace of the aluminum according to the present invention by the above configuration is operated as follows. When the material 100 is contained in the storage port 56 of the elevating device 50, the storage port 56 is coupled to the chain by one side thereof and is raised along the guide part 54 to the upper end of the melting tower 10. When reaching, the bottom of the receiving opening 56 is lifted horizontally and the material 100 is introduced into the material input opening 11 in which the door 12 is opened.

The material 100 is placed on the rostol casing 20, the material 100 is melted by the flame of the burner 14, and the molten molten metal falls into the heat storage chamber 31 through the passage 24. In the insulation chamber 31, the temperature of the molten metal is kept constant by the heat of the heating element 34, as well as the additives are added and impurities are removed through the seeker 37. After that, the lid of the outlet 39 is opened to use the molten metal in the heat insulating chamber 31. In the present invention, the heat of the insulation chamber is raised through the passage 24 of the rostol casing 20 to raise the internal temperature of the melting tower 10 as well as the material 100 is preheated and the material is melted with a small amount of heat. This was possible to increase the thermal efficiency and to enable rapid dissolution.

As described above, in the composite melting of aluminum according to the present invention, the dissolution tower is installed at the upper part of the insulating chamber in which the molten metal is contained, and thus, the effect of waste heat recovery is high. Of course, it is possible to melt the material with a small amount of heat, so the thermal efficiency is excellent and the performance is excellent. This excellent performance in energy savings can be economically beneficial.

And the present invention is a rotomol casing connecting the upper dissolving tower and the main body is assembled in a prefabricated portion as a flange portion is easy to separate and combine the parts, easy to clean and repair the inside, the overall size of the device smaller than the conventional Since it can be made to occupy less installation space has the advantage of maximizing the space efficiency.

In addition, the present invention is installed in the dissolving rostol casing receiving the dissolution tower is dissolved material and the remaining bolts, nuts and the like remain on it can be easily removed through the opening, the sight hole of the main body Through the addition of additives or there is an advantage of facilitating the removal of the float floating on the water surface.

In addition, the present invention is to open the door that is automatically opened and closed by lifting a plurality of heavy materials on one side of the melting furnace to be automatically supplied through the material inlet to supply the material quickly without interrupting the supply of material and the There is an advantage of minimizing the loss of internal temperature.

Claims (5)

In a conventional aluminum melting furnace comprising an inner wall of a refractory; A melting tower 10 having an exhaust port 17 installed at a material inlet 11 equipped with a door 12 and a burner 14 for dissolving the material 100 and an exhaust port 16 through which combustion gas is discharged; Lost casing 20 is coupled to the lower end of the dissolution tower 10 to receive the material 100 and the molten molten metal flows down; The rostol casing 20 is coupled to the upper end of the heat insulating chamber 31 to open the molten metal is introduced into the other side, the other side is a heating element 34 and the outlet for withdrawing the molten metal to maintain a constant temperature of the molten metal ( 39) is a composite melting furnace of aluminum, characterized in that consisting of the main body 30 is provided. The method of claim 1; On one side of the main body 30, the receiving opening 56 containing the material 100 is lifted along the guide portion 54 of the frame 51 on which the driving motor 52 is mounted. The composite melting furnace of aluminum, characterized in that the lifting device 50 for supplying) is provided. The method of claim 1 or 2; The stoll casing 20 is a refractory portion 28 of the outer edge is coupled to the loss stall portion 25 is formed by arranging the refractory 22 having a predetermined width at regular intervals to form a passage 24 therebetween. As a composite melting of aluminum characterized in that. The method of claim 3; The melting tower 10 and the lost stall casing 20 and the main body 30 is a composite melting furnace of aluminum, characterized in that fastened as a flange portion (28,28a). The method of claim 1 or 2; The exhaust port 17 is protruded upward, the canopy 18 for mixing the combustion gas and the outside air, and a conventional damper 19 for opening and closing the discharge passage of the mixed gas is provided, characterized in that the aluminum By multi melting.