JPS5849796B2 - Inductor furnace construction equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inductor serving as a heating source for a trench furnace, and particularly to a refractory furnace construction device thereof.

A conventional vibrating furnace construction apparatus was constructed as shown in FIGS. 1 and 2.

That is, in FIGS. 1 and 2, 1 is a vibration motor attached to a mounting base 2, 3 is an inductor case attached to the mounting base 2 with bolts, and 4 is a grooved metal type fastened to the mounting base 2 with bolts. , 5 is a water-cooled jacket, and 6 is a stamp material serving as a refractory which is vibrated and filled into the inside of the inductor case 3 by the vibration motor 1.

Here, an induction coil and an iron core coil (not shown) are arranged inside the water cooling jacket 5, and the induction coil is the primary side, and the 4 groove mold parts forming the short circuit closed circuit are the secondary circuit. It constitutes an inductor.

Therefore, when an alternating current is passed through the primary induction coil, a secondary current is induced in the groove mold 4 of the secondary circuit, and this current generates Joule heat.

Of course, the inductor is used as a heating source for the molten metal, so when the inductor is actually in operation, the groove metal 4 is replaced by this molten metal, and the molten metal itself receives current. This will cause internal heat generation.

In order to increase the electrical efficiency of this inductor and make the power supply equipment more compact, it is necessary to make the thickness of the stamp material 6 between the induction coil and the groove die 4, that is, between the water cooling jacket 5 and the groove die 4, as thin as possible. be.

When the hesitating metal is cast iron, the temperature inside this groove is 1600°C or higher, and in order to extend the life of the stamp material 6, a water cooling jacket 5 is provided, and how densely the stamp material 6 is filled. A lot of effort has been put into it.

Conventionally, basic castable refractories with high fire resistance, ramming materials, etc. have been used as the stamp material 6.
Recently, magnesia-based or spinel forming-based dry stamp materials, which have a longer life and are less prone to cracking, have been increasingly used.

Conventionally, the method of filling this powdered stamp material 6 into the inductor case 3 using the grooved metal mold 4 as a core was by inputting it by hand-by-brake, but in recent years, labor-saving methods and filling operations have been improved. From the viewpoint of uniformity, etc., dry type automatic furnace construction equipment using a vibration motor 1 is increasingly being adopted.

Next, the assembly procedure of the conventional dry furnace construction apparatus shown in FIGS. 1 and 2 will be explained.

First, the vibration motor 1 is attached to the mounting base 2 and bolted to the inductor case 3.

After that, the water cooling jacket 5 is set in the notch of the inductor case 3, and the inductor case 3 and the water cooling jacket 5 are
The gap that occurs between them is sealed with a heat-resistant insulator (not shown), such as an asbestos joint sheet.

The stamp material 6 is filled up to the top surface of the inductor case 3.

When the vibration motor is operated in this state, the inductor case 3 and the groove die 4 vibrate, and the stamp material 6 is filled with vibration.

However, this method has the disadvantage that the area A, which is the valley of vibration, is not filled no matter how long the vibration time is.

From the point of view of the function of the refractory of the inductor, this part A is a particularly important place, and it is necessary to fill it densely with the stamp material 6.

The present invention aims to eliminate these drawbacks of the conventional methods, and aims to uniformly and densely fill each part of the inductor case 3 with the stamp material 6 of the inductor.

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

That is, in FIGS. 3 and 4, 1 to 6 indicate the same parts as the conventional ones shown in FIGS. 1 and 2, and 7 is bolted to the mounting plate 8 welded to the groove mold 4. It is a diaphragm.

In the device configured in this manner, the vibration of the groove mold 4 is transmitted to the diaphragm 1, so that the stamp material 6 located in this portion is densely filled.

After the first vibration is completed, the diaphragm 7 is removed, and the stamp material 6 that has been filled and has sunk downward is replenished with another stamp material 6, and then the second vibration begins.

This second vibration fills the space where the diaphragm 7 was removed.

As described above, the inductor furnace construction device according to the present invention stores the groove mold attached to the vibrating body together with the refractory in a case, and furthermore, the diaphragm is attached to the groove mold. Since the refractory is made to vibrate uniformly, the refractory can be uniformly and densely filled in each part, thereby improving the life of the inductor.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing a conventional inductor furnace construction equipment;
The figures are a cross-sectional view taken along the line 1--2 in FIG. 1, FIG. 3 is a cross-sectional view showing an embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along the line IV--IV in FIG. In the figure, 1° is a vibration motor, 2 is a mounting base, 3 is an inductor case, 4 is a groove mold, 5 is a water cooling jacket, 6 is a stamp material, 1 is a diaphragm, and 8 is a mounting plate. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of Claims] 1. A full groove that is attached to the vibrating body and placed in the case together with the refractory, and a diaphragm that is attached to the top of the groove and that is at least partially disposed within the refractory. , an inductor furnace construction device in which the refractory is densely packed into the case by vibration between the full groove and the diaphragm; 2. The inductor furnace construction system according to claim 1, in which the diaphragm is detachably attached to the groove mold. 3. Claim 1, in which a water cooling jacket is disposed inside the groove mold. Or the inductor furnace construction device according to item 2. 4. The inductor furnace construction system according to any one of claims 1 to 3, wherein the vibrating body is composed of a mounting base and a vibration motor attached to the mounting base.