KR100908778B1 - Continuous vulcanizer of direct heating type - Google Patents

Abstract

The present invention relates to a continuous vulcanization apparatus of rubber or synthetic material that directly heats a heating furnace at low power using a large current. The present invention relates to a power supply unit for supplying power to the vulcanizer and to the power supply supplied by the power supply unit. Directly energized by using a SCR (Silicon Controlled Rectifier) that adjusts the timing to control power and a transformer that transforms the voltage by the function of the SCR to generate a large current of low voltage and a large current of the low voltage transformed by the transformer. And a temperature sensor for measuring the temperature of the inside of the heating furnace and a heating furnace for vulcanizing the object, and a temperature display showing the internal temperature measured by the temperature sensor, and when the temperature displayed on the temperature display is higher than an appropriate temperature. Internal pipes and beds to lower the temperature of the furnace It is a continuous heating device of the direct heating method of the heating furnace consisting of a blower for generating a cooling wind in the internal pipe and a vent for discharging the wind of the blower to the outside.

Continuous Vulcanization (CV), Rubber, Furnace, Direct Heating

Description

Continuous vulcanizing apparatus of direct heating type {Heating furnace-direct heating typed continuous vulcanizing apparatus}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous vulcanization apparatus of rubber or synthetic material, and more particularly, to a continuous vulcanization apparatus that is easy to use and thermally efficient in a manner of directly heating a furnace at low power using a low voltage high current.

In general, the continuous vulcanizer is to cause a chemical reaction in order to change the fabric and various industrial rubber, etc. into a highly resilient finished product, by passing the rubber vulcanizate inside the sealed heating furnace to maintain high pressure 150 ~ 350 It is heated to a high temperature heat in the range and at the same time giving a pressure of about 3 ~ 5kgf / to perform continuous vulcanization.

The conventional continuous vulcanization apparatus has a problem in that the installation cost is excessive and the installation takes a long time by installing a heating wire or a boiler pipe outside the heating furnace to indirectly heat the heating furnace to generate heat.
In other words, it is difficult to adjust the temperature to the proper temperature range of 150 to 350 degrees, and if it is heated too much, it takes a long time to stop the heating and lower the temperature to the proper temperature.

In addition, it takes a long time to heat the furnace, there is a problem that the economic loss is considerably large due to expensive oil consumption.

In order to solve the above problems, the present invention is a direct heating method for directly applying a low voltage large current to the furnace, due to the simple structure, reducing the installation cost, direct heating furnace can reduce the management cost for expensive oil replacement The purpose is to provide a continuous vulcanization apparatus of the type.

In addition, another object of the present invention is to provide a continuous vulcanization apparatus of the direct heating method that can lower the temperature of the furnace by using the wind to quickly set the temperature when the furnace is higher than the set temperature. have.

In order to achieve the above object, the present invention provides a continuous vulcanization apparatus for directly heating the furnace at low power using a large current,

A power supply unit 10 for supplying power to the vulcanizer; and

Silicon controlled rectifier (SCR) 20 for controlling power by adjusting the ON timing of the power supplied by the power supply;

A transformer 30 for transforming a voltage by a function of the SCR to generate a large current of a low voltage; and

A heating furnace 40 which is heated by direct energization using a low current large current transformed by the transformer to vulcanize vulnerables; and

Temperature sensor 50 for measuring the temperature inside the heating furnace; And

A temperature display 60 showing the internal temperature measured by the temperature sensor; and

An internal pipe 70 for lowering the temperature of the heating furnace when the temperature displayed on the temperature display is higher than an appropriate temperature; and

A blower (80) for generating cooling air in the internal pipe; and

Vents 90 for discharging the wind of the blower to the outside;

It is a continuous vulcanization apparatus of a direct heating type that is composed of a heating furnace.

In addition, in the present invention, the internal pipe is a continuous heating device of a heating furnace direct heating method, characterized in that formed in the longitudinal direction outside the heating furnace.

Continuous vulcanization apparatus of the direct heating method of the heating furnace according to the present invention has an economic effect that can reduce the installation cost by a simple structure by the direct heating method of electric heat transfer, reduce the management cost for the replacement of expensive oil, and the heating time is fast In addition, it can reduce the manufacturing cost and greatly improve the productivity because it can take a large energy saving effect.

Hereinafter, with reference to the accompanying drawings to describe the present invention in detail.

1 is a circuit diagram showing the configuration of a continuous vulcanization apparatus of a direct heating method according to the present invention.

As shown in FIG. 1, the vulcanizer is composed of a power supply unit, an SCR, a transformer, and a heating furnace.

The power supply unit 10 serves to supply the necessary power to each component that is connected in order to operate the continuous heating device of the direct heating method of the present invention, the on / off through a switch, the SCR ( Silicon Controlled Rectifier (20) is a voltage control method using a phase control method for the power supplied by the power supply unit 10 to change the voltage relatively inexpensively without loss, and adjust the ON timing of the power supply to adjust the power. To control.

In addition, the transformer (Electric Transformer) 30 uses a function of the silicon controlled rectifier (SCR) 20 to change the value of alternating voltage or current by using an electromagnetic induction phenomenon to generate a large current of low voltage. It is generated.

The heating furnace 40 is heated to a desired temperature by directly conducting and heating the heating furnace 40 by using a low voltage large current generated in the transformer 30 to pass through the rubber as a vulcanizate to perform vulcanization.

Here, the direct heating furnace, which is a method of indirectly heating the heating furnace using heat generated by installing a heating wire or a boiler pipe outside the conventional heating furnace, and a low voltage high current transformer method using the vulcanizing device according to the present invention. Compare the methods.

Table 1 shows the experimental conditions for comparing the furnace indirect heating method and the furnace direct heating method.

Classification Indirect heating method Direct heating method material  STS 316L  STS 316L Dimensions (thickness)  8 "(3.2t)  8 "(3.7t) Measure length  6M  8M

Table 2 shows the experimental results comparing the operating time according to the temperature rise of the heating furnace indirect heating method and the heating furnace direct heating method.

Temperature (room temperature) Minutes Indirect heating method Direct heating method 50 3.00 3.12 100 6.00 5.50 150 9.50 8.00 200 14.25 10.50 250 22.80 13.00 300 35.80 16.00 350 53.50 25.00

As shown in Table 2 and FIG. 2, it can be seen that the heating temperature rising rate of the direct heating method is about 50% faster than the indirect heating method at the working temperature 320, but the durability of the furnace tube is advantageous indirect heating method. The direct heating method of the furnace can control the heating time, and it can be seen that the heating tube is not a problem even if the heating is repeated at a working temperature of 320.
The furnace tube uses the cylindrical thing like a conventional thing, and the structure which supplies rubber to the inside of the tube is also the same as before. The concept of "continuous vulcanization" of the present invention is to supply a constant pressure in a closed space due to the characteristics of vulcanization, so that the supply is not continuous, and the vulcanization is continued without stopping the vulcanization due to temperature or pressure factors during the heating process. It is the concept of vulcanization.

Table 3 shows the results of experiments comparing the changes in current with the rise of temperature in the heating furnace indirect heating and heating furnace direct heating.

Temperature (room temperature) Current amount (A) Indirect heating method Direct heating method 50 80 90 100 75 86 150 70 83 200 70 79 250 67 71 300 66 35 350 64 30

As shown in Table 3 and FIG. 3, the direct heating method of the heating furnace has a lower current consumption than the indirect heating method, so the economic efficiency is excellent.

Table 4 shows the experimental results comparing the amount of SCR usage according to the temperature rise of the indirect heating method and the direct heating method.

Temperature (room temperature) Minutes Indirect heating method Direct heating method 50 70 90 100 66 86 150 62 83 200 62 79 250 61 71 300 57 35 350 56 30

As shown in Table 4 and FIG. 4, the direct heating method of the heating furnace has a lower SCR capacity than the indirect heating method, so that the system is stable by maintaining low voltage stability.

 The heating furnace, the temperature of which is increased by the low voltage high current, is equipped with a temperature sensor 50 therein to measure the current temperature of the heating furnace 40, and a temperature sensor measuring the temperature of the heating furnace 40. The temperature display 60 connected to the 50 displays an internal temperature of the heating furnace 40 measured by the temperature sensor 50 so that the operator can check.

In this case, when the temperature displayed on the temperature display 60 exceeds an appropriate temperature at which the rubber is vulcanized, the temperature of the heating furnace 40 is lowered in order to forcibly lower the temperature of the heating furnace 40 along the longitudinal direction. A null pipe 70 is formed, and the blower 80 connected to the internal pipe 70 generates a cooling air to be circulated inside the internal pipe 70 to control the temperature of the heating furnace 40. Lower to the optimum temperature for vulcanization.
In this configuration, the heating furnace temperature can be continuously adjusted to an appropriate temperature, so that it is possible to continue vulcanization unlike the existing one.

In addition, the cooling air generated in the blower 80 and circulates inside the internal pipe 70 is diverted to the outside through the ventilation holes 90.

As described above, preferred embodiments of the present invention have been described, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the scope of the present invention as claimed in the following claims. Anyone with knowledge of the present invention will have the technical spirit of the present invention to the extent that various modifications can be made.

1 is a circuit diagram showing the configuration of a continuous vulcanization apparatus of a heating furnace direct heating system according to the present invention.

2 is a graph showing the results of experiments comparing the use time according to the temperature rise of the heating furnace indirect heating method and the heating furnace direct heating method.

Figure 3 is a graph showing the results of experiments comparing the change in current with the rise in temperature of the heating furnace indirect heating method and the heating furnace direct heating method.

4 is a graph showing the results of experiments comparing the amount of use of SCR according to the temperature rise of the heating furnace indirect heating method and the heating furnace direct heating method.

5 is an overall configuration diagram of a continuous vulcanization apparatus of a direct heating method according to the present invention.

** Description of symbols on the main parts of the drawings **

10: power supply unit 11: switch

20: SCR 30: Transformer

40: heating furnace 50: temperature sensor

60: temperature display 70: internal pipe

80: air vent 90: air vent

Claims (2)

In the continuous vulcanization apparatus for directly heating the furnace at low power using a low voltage high current, A power supply unit 10 for supplying power to the vulcanizer; A silicon controlled rectifier (SCR) 20 for controlling power by adjusting an ON timing of power supplied by the power supply unit; A transformer 30 for transforming a voltage by the function of the SCR to generate a large current of a low voltage; A heating furnace (40) for heating the current to be heated by direct current using a high voltage of a low voltage transformed by the transformer to vulcanize the vulnerable object; A temperature sensor 50 for measuring a temperature inside the heating furnace; A temperature display 60 showing the internal temperature measured by the temperature sensor; An internal pipe 70 for lowering the temperature of the heating furnace when the temperature displayed on the temperature display is higher than an appropriate temperature; A blower (80) for generating cooling air in the internal pipe (70); Vents 90 for dissipating the wind of the blower 80 to the outside; Continuous vulcanization apparatus of direct heating type which consists of heating. The method of claim 1, The internal pipe (70) continuous heating apparatus of the heating furnace direct heating method, characterized in that formed in the longitudinal direction outside the heating furnace.

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