KR101569754B1

KR101569754B1 - Vitrification device and drain method of melting matter

Info

Publication number: KR101569754B1
Application number: KR1020150092051A
Authority: KR
Inventors: 최석모; 박규원
Original assignee: 뉴클리어솔루션(주)
Priority date: 2015-06-29
Filing date: 2015-06-29
Publication date: 2015-11-17

Abstract

The present invention relates to a glass melting furnace for the purpose of controlling the discharge and interruption of glass melt by arranging at least two glass melt discharging devices at the bottom of the inclined bottom of the melting furnace, And a total discharge device is installed below the bottom of the inclined bottom of the vitrification melting furnace to discharge the entire amount of the glass melt. Wherein the cyclic discharge system is provided with a driving device on the upper part to drive and discharge the shut-off bar, and the total discharge method discharges the glass melt by heating the projecting metal heating element with the discharge induction coil.

Description

TECHNICAL FIELD [0001] The present invention relates to a vitrification device and a glass melt discharging method.

The present invention relates to a vitrification apparatus and a method for discharging a glass melt, wherein at least two discharge units included in the inclined bottom portion are divided into an intermittent cycle discharge during the operation of the vitrification melting furnace and a total discharge according to the end of operation, And more particularly, to a vitrification apparatus and a discharging method which are specialized in function.

In the vitrification apparatus, the glass melt discharge method is generally used by various kinds according to various conditions, but the slug discharge method is harder than the metal discharge method. Glass melt temperature control technology is required for slag glass melt to be susceptible to temperature change and to increase viscosity according to change, so that it is not easy to discharge glass melt and it is good to discharge to facilitate discharge.

The conventional bottom sliding discharge device is installed in the lower part of the vitrification melting furnace and the temperature rise is relatively lower than that of the vitrification melting furnace due to the influence of the bottom cooling plate of the vitrification smelting furnace, . Degradation of the discharge device due to the use of a single discharge device and changes in the properties of the glass melt cause another problem, such as shutdown of the discharge.

In addition, when the outlet of the vitrification furnace bottom sliding system is applied to the vitrification furnace bottom slab, it is accompanied by oxidation, deformation and sticking due to infiltration of the glass melt in the uncooled portion, and malfunction of the valve.

In order to solve this problem, the heating method of the heating element by the induction coil for discharging has a limited emission standard. Therefore, it is different from the glass melt discharge temperature and viscosity depending on the glass characteristics.

Korean Published Patent Application No. 2011-0099785 (published on September 8, 2011) Korean Patent Publication No. 2002-0084340 (published on Nov. 7, 2002)

Existing vitrification furnace discharges are largely divided into horizontal bottom discharge and sloped bottom discharge with respect to the bottom, which has been commonly used with a single discharge outlet. In the vitrification melting furnace slope bottom, there is a problem that when the single outlet is applied to the bottom, the formation of glass melts becomes a problem, and the upper part of the glass melt in the vitrification melting furnace has a high temperature and the lower bottom part has a low temperature.

The object of the present invention is to provide a fusion furnace body including an inclined bottom portion having a first outlet formed at an upper portion of the inclined bottom portion and a second outlet formed at a lower portion of the inclined bottom portion, And a second discharging unit for opening and closing the second discharging opening, the first discharging unit including an outlet blocking rod for opening and closing the first discharging opening, and the second discharging unit opening and closing the second discharging opening.

The first discharge unit may further include a shut-off bar driving device positioned above the melting furnace main body and moving the discharge shut-off bar up and down.

The lower portion of the outlet blocking rod may be tapered.

The outlet shut-off bar may include a cooling water flow path therein.

The melting furnace body may include a main induction coil, and the second discharge unit may include a protruding metal heating portion heated by the main induction coil.

The second discharge unit may further include an outlet induction coil for heating the periphery of the second outlet.

The second discharge unit may further include a magnetic shielding portion located around the discharge induction coil.

As a still further solution to the above object of the present invention, there is provided a method for discharging a glass melt of a vitrification apparatus, comprising the steps of: a first discharging step of discharging the glass melt through a first outlet at an upper portion of an inclined bottom during operation of the vitrifying furnace; And a second discharging step of discharging the molten glass through the second outlet at the lower end of the inclined bottom at the end of the operation.

And the first discharging step may include intermittently opening and closing the first outlet to discharge at least a part of the vitrified melt in the melting furnace.

And the second discharging step may include discharging the entire amount of the glass melt of the vitrification melting furnace.

The first discharge unit on the upper part of the vitrification furnace slope type bottom can control the discharge amount of the glass melt by moving the discharge shut-off bar up and down by driving the motor. The first discharge unit is easier to open and close than the conventional sliding method and can be discharged at any time during operation, so that the operating time of the vitrification furnace can be increased and the operating cost is reduced.

1 is a cross-sectional view of a vitrification apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged view of FIG. 1 A. FIG.
3 is a perspective view of a first discharge unit according to an embodiment of the present invention.
Fig. 4 is an enlarged view of Fig. 1B. Fig.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the drawings.

The method of heating and discharging by addition of heat from the discharging device can be broadly divided into heating and induction heating methods. These discharging methods have many similarities. Depending on temperature, target material, application position and emission application method, There are many differences in size. It can be said that the present invention is selectively applied to the discharge method by dividing the glass melt temperature according to the use according to the temperature of the glass melt in the inclined bottom part.

1 is a cross-sectional view of a vitrification apparatus 1 according to an embodiment of the present invention.

The vitrification apparatus 1 has a vitrification furnace, and the vitrification furnace includes a main induction coil 700 for low temperature induction heating. The vitrified material in the melting furnace is heated by induction heating by the main induction coil 700 and is vitrified and converted into a liquid glass melt 500 as it approaches the melting point of the melt. The vitrification furnace includes a melting furnace sector 600 for cooling to prevent the body of the vitrification apparatus 1 from being heated above a certain temperature.

The vitrifying apparatus 1 according to the present invention has an inclined bottom portion 800 formed at a lower portion thereof and a second discharge unit 200 for opening and closing the first discharge port 100 and a second discharge port 400 for opening / A second exhaust unit 300 is formed. The first discharge unit 200 formed on the upper part of the vitrification furnace slanting bottom part 800 discharges the upper glass melt and the second discharge unit 300 formed on the lower part of the slanting bottom part 800, It is possible to discharge the whole amount including the discharge.

Fig. 2 is an enlarged view of Fig. 1, and shows the vicinity of the first outlet 100 above the inclined bottom portion 800 of the vitrification apparatus 1. Fig.

The inclined bottom portion 800 of the vitrification furnace has a structure in which cooling water circulates therein and includes a refractory material for fixing the cooling plate 410 and the cooling plate 410. The glass melt 500 has a first outlet 100 for discharging the glass melt 500 and a discharge outlet rod 210 for opening and closing the first outlet 100 when the glass melt 500 is discharged. And the lower portion 211 of the outlet blocking bar facilitates opening and closing of the first outlet 100 in a tapered shape. The glass melt is cooled by the cooling water circulated to the cooling water flow path 212 formed in the cooling plate 410 and the outlet shutoff rod 210 when the outlet shutoff rod 210 blocks the first outlet 100 ) And the metal interface, a slag hardening layer is formed with a constant thickness.

The first outlet 100 of the vitrification furnace slanting bottom portion 800 is formed at a height of about 1/3 of the total height of the glass melt 500 and the high temperature glass melt of 1,000 ° C or higher is discharged in the furnace If the outlet shutoff rod 220 is raised, a slight tensile force may be generated due to the slag hardened layer. However, in order to solve this problem, the outlet shutoff bottom portion 211 is formed in a taper shape to minimize the contact surface of the hardened layer. The first discharge unit 200 on the inclined bottom portion 800 of the vitrification apparatus 1 can be repeatedly used for a long period of time by facilitating the closing and opening of the discharge port shutoff bar 210. [ The glass melt discharged to the discharge port is prevented from accumulating slag under the discharge port or the cooling plate due to the circulating water of the cooling plate 410.

Since the position of the first outlet 100 is discharged in a relatively high temperature region of the temperature-dependent region of the glass melt 500, no additional heating device is required.

FIG. 3 is a view showing a first discharge unit 200 of a vitrification furnace according to an embodiment of the present invention.

The vitrification furnace first discharge unit 200 has a drive device 220 at the top. As shown in FIG. 1, the driving unit 220 is installed so as to be located at the upper part of the vitrification apparatus 1. [ The discharge shut-off rod 210 is rotated by the rotation of the deceleration motor 221 to adjust the height of the rotation screw 222. The discharge shut-off rod 210 is provided with a transfer guide 224 So that the discharge shut-off bar 210 is positively positioned at the first discharge port 100 and the transfer guide 224 is fixed to the support plate 226 so that the tapered lower end portion of the shut- 100), so that the glass melt is accurately discharged and blocked. A safety device limit can be set in the driving device 220 of the outlet blocking bar 210 to control the height of the outlet blocking bar 210.

The glass melt 500 is adjusted by setting the operating range of the discharge shut-off rod 210 and the discharge amount of the glass melt 500 by the transfer limit 223. A cooling water flow path 212 is formed in the outlet shutoff rod 210 to continuously supply cooling water at a constant temperature in order to block deformation due to high temperature in the melting space inside the vitrification melting furnace. The lower portion of the shutoff bar 211 is tapered to minimize the contact force at the time of separating the outlet shutoff bar 210 by the glass cooling layer formed by the glass melt 500 cooled by the cooling water contacting the cooling plate 410, It also plays a role of expanding the discharge port when the glass melt viscosity is not smooth.

Fig. 4 is an enlarged view of Fig. 1B, showing the second discharge unit 300 and the peripheral portion thereof. The second discharge unit 300 is installed at a lower portion of the vitrifying furnace inclined bottom portion 800. The discharge inducing coil 320 is operated by the induction heating device and the protruding metal heating portion 310 is heated, (500) passes through the second discharge unit through the protruding metal outlet (340) and is discharged to the second outlet (400). The discharge of the glass melt 500 according to the present invention is melted by the main induction coil 700 of the vitrification melting furnace and discharged through the protruding metal outlet 340 to the second outlet 400. In the prior art, The height of the second discharge port 400 is lower than that of the inclined bottom portion 800 to facilitate discharge of the discharge port. The discharge protruding metal heating unit 310 generates heat by the main induction coil 700 and the heat transfer of the high temperature glass melt 500 at the upper portion of the protruding metal heating unit 310, So that the glass melt 500 is easily discharged to the second outlet 400 through the protruding metal outlet 340.

The outlet induction coil 320 can also function to control the protruding metal heating part to discharge the glass melt 500 and to stop the discharge of the glass melt 500 when the main induction coil 700 is shut off, The protruding metal heater 310 can also be cooled by supplying cooling water to the coil 320, thereby prolonging the lifetime due to oxidation of the heating element and controlling the melting of the glass melt.

And the magnetic field shielding portion 330 is used at the outer side of the outlet induction coil 320. The magnetic shielding part 330 is installed using a ferrite core to maximize the magnetic field efficiency between the main induction coil 700 and the discharge induction coil 320. The magnetic shielding part 330 serves to maximize the induction efficiency of the discharge induction coil 320 by interrupting the induction current of the main induction coil 700 and has a tapered shape to facilitate disassembly and assembly of the discharge device.

The second exhaust unit 300 is assembled separately from the protruding metal heating unit 310 and the refractory mold, and is replaceable when the protruding metal heating unit 310 is damaged due to oxidation. Further, the outlet induction coil 320 is embedded in the refractory material, and the outer surface of the refractory material mold is tapered to facilitate maintenance.

The above-described embodiments are illustrative of the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

In the vitrification apparatus,
A melting furnace body including an inclined bottom portion and having a first outlet formed at an upper portion of the inclined bottom portion and a second outlet formed at a lower portion of the inclined bottom portion;
A first discharge unit including an outlet shut-off bar for opening and closing the first outlet through vertical movement;
And a second discharge unit for opening and closing the second discharge port.

The method of claim 1,
Wherein the first discharge unit further comprises a shut-off bar drive device positioned above the melting furnace body and moving the discharge shut-off bar up and down.

The method of claim 1,
Wherein the lower portion of the outlet blocking rod is tapered.

The method of claim 1,
Wherein the outlet blocking rod has a cooling water flow path formed therein.

The method of claim 1,
Wherein the melting furnace body includes a main induction coil,
And the second discharge unit includes a protruding metal heating portion heated by the main induction coil.

The method of claim 5,
Wherein the second discharge unit further comprises a discharge induction coil for heating the periphery of the second discharge port.

The method of claim 6,
Wherein the second discharge unit further comprises a magnetic shielding portion located around the discharge induction coil.

A glass melt discharge method for a vitrification apparatus,
During the operation of the vitrification furnace, through a first outlet at the top of the inclined bottom,
And a second evacuation step for evacuating the molten glass through a second outlet at the bottom of the inclined bottom at the end of the vitrification melting furnace operation.

9. The method of claim 8,
Wherein the first discharge port intermittently opens and closes the first discharge port to discharge at least a part of the vitrified melt in the melting furnace.

9. The method of claim 8,
And the second discharging step discharges the entire amount of the glass melt of the vitrification-melting furnace.