JPH06140141A - Heating device for dissolving - Google Patents

Abstract

PURPOSE:To continuously dissolve a desired quantity of a material to be dissolved by sending the material to be dissolved on coil side at a feeding speed for material to be dissolved according to a coil supplying electric energy quantity (or the dissolving speed of the material to be dissolved). CONSTITUTION:A solid material 1 to be dissolved sent to a dissolving zone R by a feed mechanism 5 is dissolved and formed into a molten material 1a by the induction heating of a coil 3, discharged from the discharge part 8 of a passage 2, and stored in a heat insulating vessel 9. A control means 7 can control the coil supplying electric energy quantity of an inverter 6 to have a desired dissolving speed, and also control the driving speed of a driver 15. Thus, supply of the melt can be automized, and oxidation of the melt can be minimized.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a melting and heating apparatus.

[0002]

2. Description of the Related Art In a melting and heating apparatus for feeding a melted substance of solid metal such as aluminum into a passage surrounded by an induction heating coil and melting the melted substance by induction heating, the melted substance is conventionally manually melted. Was being sent into the aisle.

[0003]

Therefore, the substance to be melted cannot be fed into the passage at a constant speed, and the feeding speed becomes faster or slower than the melting speed of the substance to be melted. Therefore, the amount of dissolution varies, and it is difficult to dissolve efficiently.

Therefore, an object of the present invention is to provide a melting and heating apparatus capable of efficiently quantifying a material to be melted and melting it at a constant speed.

[0005]

In order to achieve the above object, the present invention provides a passage through which a material to be melted can be inserted, an induction heating coil surrounding a predetermined portion of the passage, and one end of the passage. And a feeding mechanism for forcibly feeding the melted object inserted from the portion to the coil side, and rapidly melting the melted material sent to the coil side by induction heating by supplying electric energy to the coil side. An inverter and a control means for controlling the amount of electric energy supplied to the coil of the inverter and the feed speed of the melted material of the feed mechanism so that the melted material is continuously melted in a desired amount.

[0006]

The object to be melted can be continuously melted by sending the object to be melted to the coil side at a material-to-be-melted material feeding speed according to the amount of electric energy supplied to the coil (that is, the melting speed of the object to be melted).

Since the material to be melted is continuously melted, the molten metal (made by melting the material to be melted) continuously flows out, and the surface area of the molten metal exposed to air is small (compared to the case where the molten metal flows out intermittently). And less oxidation.

[0008]

The present invention will be described in detail below with reference to the drawings showing the embodiments.

FIG. 1 shows an example of a melting and heating apparatus according to the present invention. This melting and heating apparatus is used for induction heating which surrounds a slanted passage 2 through which a substance 1 to be melted can be inserted and a predetermined portion of the passage 2. The coil 3, a feeding mechanism 5 forcibly sending the melted substance 1 inserted from the one end insertion portion 4 of the passage 2 to the coil 3 side, an inverter 6 for supplying the coil 3 with electric energy by a high frequency current, and an inverter 6 Control means 7 for controlling the amount of electric energy supplied to the coil and the feed rate of the melted material of the feed mechanism 5.

The solid material 1 to be melted sent to the melting zone R by the feeding mechanism 5 is rapidly melted by (high frequency) induction heating by the coil 3 and flows down as a liquid melt 1a. , Is discharged from the other end discharge portion 8 of the passage 2, and is stored in the heat insulating container 9.

As shown in FIG. 2, the material to be melted 1 is an ingot made of metal such as aluminum and having a substantially trapezoidal cross section and having a predetermined length, and a commercially available product having a standard size and shape can be used. The left and right side end surfaces 10, 10 of the melted material 1 are continuous surfaces.

On the other hand, as shown in FIGS. 3, 4 and 5,
The passage 2 is a tubular body 11 having a substantially trapezoidal cross section having a predetermined thickness.
And a guide rail 12 in the form of a strip, and inside the tubular body 11,
A part (tip side) of the guide rail 12 is inserted.

The cylindrical body 11 and the guide rail 12 are formed of, for example, an irregular shaped refractory material such as cement having a toughness, or a ceramic having heat resistance, wear resistance and spalling (crack resistance). A coil 3 is arranged around the cylindrical body 11 to form a melting zone R.

The guide rail 12 has a shallow groove 13 along which the material to be melted 1 slides.

Further, as shown in FIGS. 1, 3 and 5,
The feed mechanism 5 includes a pair of rollers 14 and 14 that come into contact with the side end faces 10 and 10 of the object to be melted 1 and a pair of rollers 14 and 14 that are driven to rotate about the axes A and A to insert the object to be melted 1 at one end And a driving machine 15 for feeding from the 4 side to the other end discharging section 8 side.

On the surface of the roller 14, an uneven portion for preventing slip such as knurling is formed (not shown), and both or one of the rollers 14 is pushed toward the melted material 1 in a resilient manner such as a spring. It is desirable that the object 1 to be melted can be reliably sent by elastically urging with 16.

The control means 7 can control the amount of electric energy supplied to the coil of the inverter 6 so as to obtain a desired melting speed, and the driving speed of the driving machine 15 (that is, the roller) so as to obtain a desired melted material feeding speed. 14 rpm) can be controlled.

Further, the control means 7 can control the amount of electric energy supplied to the coil necessary for continuously melting a desired amount of the melted substance 1 in the melting zone R and the melted substance feeding speed.

In this way, the amount of dissolved substance 1 (per unit time) can be controlled. Therefore, the material to be melted 1 can be efficiently dissolved, the desired amount of the molten metal 1a can be obtained, and the molten metal supply can be automated.

Moreover, since the material 1 to be melted is continuously melted and flows in the passage 2 in a state where the molten metal 1a is connected (as indicated by reference numeral S _{1 in} FIG. 3), it is discharged (reference numeral S ₂ in FIG. 3). as)
Compared to the case where the molten metal 1a flows out intermittently, the surface area of the molten metal 1a that comes into contact with air becomes smaller, and the oxidation is less.

Further, since the material to be melted 1 is fed at a predetermined speed by the rollers 14 and 14 of the feeding mechanism 5, the rollers 14 and 14 are
It becomes easy to automate the transportation of the melted substance 1 up to. As the substance to be dissolved 1, a commercially available product can be used as described above, which is convenient and economical.

[0022]

Since the present invention is constructed as described above, it has the following great effects.

The substance to be dissolved 1 can be efficiently dissolved and the amount of dissolution can be controlled. Therefore, a desired amount of molten metal obtained by melting the material to be melted 1 can be obtained, and the molten metal supply can be automated. Moreover, since the material to be melted 1 is continuously melted and discharged, the oxidation of the molten metal can be reduced.

Further, since the material to be melted 1 is sent by the feeding mechanism 5 at a predetermined speed, the material to be melted 1 up to the feeding mechanism 5 is
It is easy to automate the transportation of.

[Brief description of drawings]

FIG. 1 is an overall simplified configuration diagram showing an embodiment of the present invention.

FIG. 2 is a perspective view of an object to be melted.

FIG. 3 is a sectional side view of a main part of a passage.

FIG. 4 is a perspective view of a main part of a passage.

FIG. 5 is a sectional front view of the main part of the passage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dissolved material 2 Passage 3 Coil 4 One end insertion part 5 Feed mechanism 6 Inverter 7 Control means

Claims (1)

[Claims] 1. A passage 2 through which a substance to be melted 1 can be inserted, an induction heating coil 3 surrounding a predetermined portion of the passage 2, and the substance to be melted 1 inserted from an end insertion portion 4 of the passage 2. A feeding mechanism 5 for forcibly feeding the coil 3 to the coil 3 side, and the coil 3
And an inverter 6 for rapidly melting the melted material 1 sent to the coil 3 side by induction heating by supplying electric energy to the coil 3 and the inverter 6 for continuously melting the melted material 1 in a desired amount. Control means 7 for controlling the amount of electric energy supplied to the coil and the feed rate of the melted material of the feed mechanism 5;
A melting and heating device comprising: