KR200272842Y1 - A smelting furnace - Google Patents

Abstract

The present invention relates to a melting insulator, and more particularly, in order to store a molten molten metal by melting a solid material to maintain a constant temperature for use in a casting operation, the heating element is installed downward into the melting chamber to uniformly hot roll the heating element. To ensure that the scene works evenly, the material injected into the melting chamber to smoothly flow while melting along the inclined portion below to increase the melting efficiency, and to protect the device by preventing the heating element contact between the heaters built by heat deformation. Melting furnace.

Description

Melting Insulation Furnace {A SMELTING FURNACE}

The present invention relates to a melting insulator, and more particularly, to a melting insulator which melts a solid material and keeps the molten molten metal at a constant temperature for use in a casting operation.

In general, a melting furnace (爐) is a material (ingot, hereinafter referred to as "material") formed by molding a certain size of aluminum to melt 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.

The interior of the melting furnace according to the prior art is a problem that the lower edge portion of the portion into which the material is injected is angled to accumulate in the state that the material injected into the corner is not dissolved, so the stacked material is used as it is solid Not only can it become impossible, but the problem of reducing the volume of a dissolution chamber is anticipated.

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

Looking at the structure of the heating element, two heaters having a predetermined length are embedded in the tube at predetermined intervals, and the heating element is horizontally horizontally laid on the side of the melting furnace, which is deformed due to high-temperature heat, causing the drawing to elongate. It is expected that the action may be uneven, and the heaters may be in contact with each other, causing a short phenomenon.

In addition, in order to repair and replace the heating element, the internal melt flows out in order to separate it from the melting furnace. Therefore, it is inconvenient to discharge a certain amount of the melt, and loss of unnecessary melt is expected.

The present invention is to overcome the above-mentioned problems, the object of the present invention is to install the heating element downward into the melting chamber to uniformly extend the heating of the heating element, while the material injected into the melting chamber is melted along the inclined portion below The present invention is to provide a melting insulator that allows a smooth flow to increase melting efficiency.

Another object of the present invention is to provide a heat dissipation furnace which prevents the heating element from contacting the heater built by the heat deformation.

In order to achieve the above object, the present invention is provided with a heating element in a dissolution chamber that forms an inner wall of a refractory material, and dissolves a material supplied through an inlet of one side, and stores it at a constant temperature and provides a molten metal in a conventional melting heat furnace. The heating element includes at least one heater and a support for supporting the heater in a tube having a cover, and is installed downward into the melting chamber.

1 is a cross-sectional view showing the dissolution insulation furnace according to an embodiment of the present invention.

FIG. 2 is a plan view taken along the line AA of FIG. 1; FIG.

Figure 3 is a detailed view of the heating element according to the present invention.

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

10: melting furnace 12: refractory

13: Top 14: Melting chamber

15: Slot 16: tap

17: slope 18: end

20: heating element 22: heater

24: tube 26: cover

28: support 28: fixture

30: case

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in describing the present invention, if a detailed description of a related known function or configuration may obscure the subject matter of the present invention, the detailed description thereof will be omitted. 1 is a cross-sectional view showing the dissolution insulation in accordance with a preferred embodiment of the present invention, Figure 2 is a plan view showing the cut along the line A-A of FIG. 1 and 2, the melting furnace 10 according to the present invention is provided with a plurality of heating elements 20 at least one in the melting chamber 14 forming the inner wall of the refractory 12 and the inlet 15 of one side ) Can be dissolved and stored at a certain temperature.

First, looking at the refractory 12 forming the inner wall of the melting chamber 14, by using a common alumina-based refractory and high-density alumina-based refractory casing table (Castable) in the hot portion and the middle temperature portion that the molten metal directly touches, In addition, it prevents welding and melting of the molten metal and improves the compressive strength at high temperature, as well as reducing the thermal conductivity and improving the heat storage amount. Between the double refractory insulation materials, a ceramic plate is used to cope with thermal expansion, and the second molten metal penetration is prevented. And the outside of the low temperature using a heat insulating material (Silica board) to minimize the amount of heat dissipation to the outside. In particular, the bottom surface of the inlet 15 into which the material is introduced is inclined downward toward the middle portion of the melting chamber 14, so that the injected material naturally melts while moving along the inclined portion 17, so that the material is in the place. Do not accumulate. In addition, an end 18 is formed at the bottom surface of the hot water outlet 16 so that heat of the heating element 20 is evenly transmitted. The upper opening of the dissolution chamber 14 is covered with an upper plate 13, the hollow case 30 is installed on the upper plate 13, and the heating element 20 is fixed by a clamp, and the heating element 20 is Through the case 30 and the upper plate 13 is extended to the inside of the dissolution chamber 14 as a downwardly installed upper immersion melt insulation furnace uniform thermal stretching evenly prevents deformation due to heat, the heating element 20 Is preferably installed vertically.

3 is a detailed view of a heating element according to the present invention. Referring to FIG. 3, the heating element 20 has at least one heater 22 spaced apart at predetermined intervals from a tube 24 having a cover 26 coupled to the top thereof, and is fixed to the cover 26. It has a length and extends into the tube 24. The heater 22 is preferably a conventional electrode that generates electricity, and the lower heat generating portion 22b and the current thereon are made up of a non-heating portion 22a that conducts but does not generate heat, and the lower heat generating portion 22b. ) Is positioned at a certain height above the molten metal. In order to prevent the electrodes from being in contact with each other, a support 28 corresponding to the cross-sectional area of the tube is embedded in the middle of the tube 24 to support the middle of the heater 22. The support 28 is most preferably formed of a member such as a ceramic having excellent heat resistance, and is coupled to a rod 29 coupled to the lid 26. In addition, the heat dissipation furnace of the present invention is provided with a temperature sensing zone, a power supply unit, a control unit, etc. The casing and the exterior are made of a separate plate to beautify the appearance, and various electric-electronic instruments are installed inside each part of the melting furnace. To control its operation and temperature.

As described above, the melting thermal insulation furnace according to the present invention is made by inclining the bottom surface downward toward the middle of the melting chamber at the lower part of the material inlet, so that the injected material is naturally melted while moving along the inclined part, reducing waste of material and improving space efficiency. There is an advantage to improve. In addition, the end is formed on the bottom surface of the tapping port side has the advantage that the heat of the heating element is evenly transmitted.

In addition, the present invention is the heating element is installed downward into the melting chamber uniform heat stretching evenly, to prevent deformation and sag by high temperature heat, the heater has a certain length and is embedded in the tube at a predetermined interval The built-in support in the tube prevents the heaters from being in contact with each other, thereby preventing short circuits occurring when the heaters are in contact with each other and protecting the heating element.

In addition, the present invention provides the convenience of releasing the fixture holding the heating element and easily detaching and repairing it.

In addition, the present invention has the effect of eliminating the defective rate is sufficient without the degassing treatment and chemical treatment by the molten water of the tapping hole made in the actual operation by the flow of the intermediate of the molten metal.

Claims (2)

In a typical heat dissipation furnace is provided with a heating element in the dissolution chamber forming the inner wall of the refractory material and to dissolve the material supplied to the inlet of one side to store at a constant temperature and to provide a molten metal; The heating element 20 includes at least one heater 22 and a support 28 supporting the heater 22 in a tube 24 having a cover, and is installed downward into the melting chamber 14. Melting thermal furnace, characterized in that made. The method of claim 1; The inside of the melting chamber 14 is inclined portion 17 is formed on the inlet (15) side, the end of the melting port 16 is formed in the melting heat characterized in that the end is formed 18.