KR101325156B1 - Waste oil recycling equipment - Google Patents

Abstract

The present invention improves the thermal efficiency by directly heating while forming the waste oil into a thin film to shorten the time to heat the waste oil to the temperature required for evaporation, improve the evaporation rate, and recover the droplets formed on the wall of the evaporation chamber to discharge the steam treatment unit yield The present invention discloses a waste oil regeneration device having a compact structure and a simple structure. The present invention disclosed is a waste oil supply unit for supplying waste oil; An evaporation unit for directly heating and vaporizing the waste oil supplied from the waste oil supply unit; A steam treatment unit for condensing and treating the vapor vaporized and discharged by the evaporation unit; A vacuum unit for forming a predetermined vacuum pressure in the evaporation unit and the steam processing unit; And a droplet recovery unit which collects the liquid droplets that are not discharged by the condensation from the evaporation unit and is present in the liquid phase in the evaporation chamber wall and is recovered to the steam treatment unit.

Description

Waste Oil Recycling Equipment {WASTE OIL RECYCLING EQUIPMENT}

The present invention relates to a compact and compact waste oil regeneration apparatus for refining waste oil such as waste lubricating oil or waste cooking oil to extract oil usable as fuel oil.

There are a chemical treatment method and a physical treatment method for refining waste oil such as waste lubricating oil or waste cooking oil, which are discarded at the end of their life in various machine tools, hydraulic machines, automobile engines, and the like, and extracting usable oils as fuel oil.

The chemical treatment method is an ion purification method that is widely used by existing waste oil recycling companies, but this method is not preferable because of the low level of recycled products and high environmental pollutants.

A typical method of physical treatment is high temperature pyrolysis. This high temperature pyrolysis method is a high value added method because the quality of the recycled product is higher than the ion purification method and contains less environmental pollutants.

However, the high temperature pyrolysis method has a disadvantage in that the product is unstable and tar is generated due to pyrolysis by heating to a high temperature (370 to 550 ° C.) at atmospheric pressure. After a certain time, sediment is formed, and tar causes clogging of the combustion nozzle and piping when the burner is used. In addition, because the equipment is operated at a high temperature, the durability of the equipment is short, the risk of fire and explosion is relatively high, the plant must be shut down to deal with the sludge generated, the initial investment cost of the equipment is high, Required.

On the other hand, Patent Publication No. 10-2011-22851, the fluid evaporation unit for heating and evaporating the fluid introduced from the outside, the sludge processing unit is connected to the fluid evaporation unit to process the sludge left after the fluid is evaporated, and Disclosed is a waste oil purification apparatus including a steam treatment unit connected to a fluid evaporation unit and condensing vapor of the evaporated fluid into a purified liquid in a liquid state.

However, the waste oil purification apparatus disclosed in the above-mentioned Patent Publication No. 10-2011-22851 has a low thermal efficiency in an indirect heating method in which the evaporation chamber is heated by a heater to evaporate, thereby making it difficult to heat the evaporation chamber to a temperature suitable for evaporation. It takes time, and there is a problem in the production and operation of the facility, such as employing a high-heat heater in order to reduce the heating time.

In addition, the waste oil purification apparatus disclosed in the Patent Publication No. 10-2011-22851, yields a portion of the gas evaporated in the evaporation chamber is not discharged to the outside, but is formed in the liquid phase on the upper wall of the evaporation chamber and fall back into the evaporation chamber There is a problem that this is not high.

In addition, the waste oil purification apparatus disclosed in the above-mentioned Patent Publication No. 10-2011-22851 has a large size of the equipment and a complicated structure by installing a plurality of rotating plates inside the cylindrical evaporation chamber and installing a heater outside the evaporation chamber. There is a problem.

The present invention has been made in view of the above, by providing a waste oil to form a thin film directly heating to increase the thermal efficiency to shorten the time to heat the waste oil to the temperature required for evaporation and provides a waste oil regeneration apparatus that can improve the evaporation rate Its purpose is to.

Another object of the present invention is to provide a waste oil recycling apparatus capable of improving the yield by recovering the droplets formed on the wall of the evaporation chamber and discharging them to the discharge unit.

It is still another object of the present invention to provide a waste oil recycling apparatus which is compact in structure and simple in structure.

Waste oil recycling apparatus according to the present invention for achieving the above object, a waste oil supply unit for supplying waste oil; An evaporation unit for directly heating and vaporizing the waste oil supplied from the waste oil supply unit; A steam treatment unit for condensing and treating the vapor vaporized and discharged by the evaporation unit; A vacuum unit for forming a predetermined vacuum pressure in the evaporation unit and the steam processing unit; And a droplet recovery unit which collects the liquid droplets that are not discharged by the condensation from the evaporation unit and is present in the liquid phase in the evaporation chamber wall and is recovered to the steam treatment unit.

According to a preferred embodiment of the present invention, the waste oil supply unit is a waste oil storage tank for storing waste oil; A waste oil supply chamber connected to the waste oil storage tank and a first pipe; A waste oil supply pipe for supplying waste oil of the waste oil supply chamber to the evaporation unit; A sludge discharge pipe for discharging the sludge vaporized in the evaporation unit to the waste oil supply chamber; And a sludge storage tank connected to a second pipe at a lower portion of the waste oil supply chamber.

In addition, the evaporation unit, the evaporation chamber having a housing having a waste oil supply port and a vapor discharge port and the support plate is hermetically coupled to the lower portion of the housing and provided with a sludge discharge port; A rotating plate rotatably installed in the evaporation chamber to form waste oil introduced through the waste oil supply port into a thin film by centrifugal force; A heater embedded in the rotating plate to heat a thin fluid film on the rotating plate; A driving unit for rotating the rotating plate; And a steam discharge pipe connected to the steam discharge port.

In addition, the waste oil supply port of the housing is provided with a nozzle for dropping the supplied waste oil to the center portion of the rotating plate, a plurality of steam induction ribs for inducing vaporized vapor to the steam outlet is installed at the upper edge of the rotating plate. Can be.

In addition, the housing may be provided with an observation window for observing the inside of the evaporation chamber, the housing may be provided with a vacuum control valve for finely adjusting the internal vacuum pressure of the evaporation chamber.

In addition, the housing may be formed in any one shape selected from a dome shape, a cylindrical shape, a cone shape, a combination of a cone and a cylinder.

The drive unit may include: a hollow shaft coupled to a lower portion of the rotating plate and extending downward through the support plate; A drive motor; And power transmission means for transmitting power of the drive motor to the shaft, wherein the power transmission means comprises: a driven sprocket coupled to the shaft; A drive sprocket coupled to the drive motor shaft; And a chain connecting the driven sprocket and the driving sprocket.

In addition, the heater, the cartridge heater provided in the lower portion of the rotating plate to receive power from the electric wire installed to reach the heater groove formed in the inside of the rotating plate through the inside of the shaft; And a temperature sensor installed to reach a heater groove formed in the rotating plate through the inside of the shaft, and configured to sense the temperature of the cartridge heater.

In addition, the steam treatment unit, the condensation unit for liquefying the steam discharged from the evaporation unit; And a discharge unit for discharging the condensed oil liquefied by the condensation unit.

The condensing unit may further include a heat exchanger connected to a vapor discharge pipe of the evaporation unit; And a cooler for cooling the heat exchanger.

In addition, the discharge unit, the vacuum chamber is connected to the heat exchanger and the third pipe receiving the condensate; A discharge chamber connected to the vacuum chamber and a fourth pipe; A regeneration oil storage tank connected to the discharge chamber and a fifth pipe; A fourth open / close valve for opening and closing the fourth pipe; A fifth open / close valve for opening and closing the fifth pipe; And a vacuum release valve for releasing the vacuum of the discharge chamber.

In addition, the vacuum unit may include a vacuum pump connected to the sixth pipe to the vacuum chamber.

In addition, the droplet recovery unit, the home glass is provided on the inner circumferential surface of the evaporation chamber to collect the liquid drops along the inner circumferential surface of the evaporation chamber; And a droplet discharge pipe connecting the collector glass to the steam treatment unit to discharge the droplets collected in the collector glass to the steam treatment unit.

According to the present invention, since the waste oil is transferred to the rotating plate of the evaporation chamber and directly heated by the heater while forming a fluid thin film, the thermal efficiency can be improved, thereby improving the evaporation rate.

In addition, according to the present invention, since all the oil droplets formed on the wall of the evaporation chamber by the condensation phenomenon in the evaporation chamber can be recovered and treated by the steam treatment unit, the yield can be improved.

In addition, the waste oil regeneration apparatus according to the present invention has a structure in which a heater is built in the rotating plate, and thus the equipment can be easily configured.

In addition, the compact and miniaturized waste oil recycling apparatus according to the present invention can be commercialized at a low investment cost and can be expected to increase the recycling rate of waste oil by treating waste oils generated in small quantities.

1 is an overall system circuit diagram of a waste oil recycling apparatus according to an embodiment of the present invention;
2a to 2c is a front view, a plan view and a side view showing the appearance of the waste oil recycling apparatus according to an embodiment of the present invention,
3a and 3b is a front view and a side view showing an extract of the evaporation unit is an important part of the present invention,
4 is a view showing another embodiment of an evaporation chamber,
5 is a view illustrating a rotating plate in which a heater is built, and
FIG. 6 is a detailed view of portion A of FIG. 5.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention may be variously modified and may have various forms, and exemplary embodiments will be described in detail. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

1 and 2, the waste oil recycling apparatus according to an embodiment of the present invention, the waste oil supply unit 10, the evaporation unit 20, the steam treatment unit 30, the vacuum unit 40 and the droplets Recovery unit 50 and the like.

The waste oil supply unit 10 includes a waste oil storage tank 11 for storing waste oil, a waste oil supply chamber 13 connected to the waste oil storage tank 11 and a first pipe 12, and the waste oil supply chamber 13. Waste oil supply pipe 14 for supplying the waste oil to the evaporation unit 20, sludge discharge pipe 15 for discharging the sludge vaporized in the evaporation unit 20 to the waste oil supply chamber 13 and the waste oil supply The sludge storage tank 17 connected to the second pipe 16 at the lower part of the chamber 13 is provided.

The first pipe 12 is provided with a solenoid valve and a level switch for opening and closing the pipe, and the solenoid valve is automatically opened when the waste oil of the waste oil supply chamber 13 is lowered below a predetermined level. The waste oil of the storage tank 11 is transferred to the waste oil supply chamber 13.

Further, the second pipe 16 is provided with a valve for opening and closing the pipe, and the waste oil supply pipe 14 is provided with a flow control valve, a flow meter, a pressure pump, and the like.

The evaporation unit 20 directly vaporizes the waste oil supplied from the waste oil supply unit 10 and vaporizes oil components in the waste oil. The sludge from which the oil component is evaporated is discharged to the waste oil supply chamber 13 through the sludge discharge pipe 15.

As shown in FIGS. 1 and 3, the evaporation unit 20 includes an evaporation chamber 21, a rotating plate 22, a heater 23, a driving unit 24, and a vapor discharge pipe 25.

The evaporation chamber 21 includes a housing 21a and a support plate 21b, and the housing 21a is provided with a waste oil supply port 21c and a vapor discharge port 21d. In addition, a sludge discharge port 21e is formed in the support plate 21b, and the support plate 21b is hermetically coupled to the housing 21a through a gasket or the like.

The waste oil supply port 21c of the housing 21a is provided with a nozzle 21f for dropping the supplied waste oil to the center portion of the rotating plate 22. Further, the housing 21a has an evaporation chamber ( At least one observation window 21g for observing the inside of 21 is provided.

In addition, the housing 21a is provided with a vacuum control valve 21h for finely adjusting the vacuum pressure of the evaporation chamber 21. By finely adjusting the vacuum pressure of the evaporation chamber 21 by using the vacuum control valve 21h, the fluidity of the oil vapor remaining in the evaporation chamber 21 can be improved so that the oil vapor can be smoothly discharged to the steam outlet 21d. have.

The rotating plate 22 is rotatably installed in the evaporation chamber 21 to form waste oil fed from the nozzle 21f into a thin film by centrifugal force. The rotating plate 22 forms waste oil dropped into the center of the rotating plate 22 as a thin fluid thin film while rotating at a speed of about 0 to 600 rpm by the driving unit 24 to be described later.

The heater 23 is embedded in the rotating plate 22 to heat the thin fluid thin film on the rotating plate 22 to vaporize the oil component in the waste oil. The heating temperature of the heater 23 is about 0 ~ 600 ℃, the vapor evaporated by the heating of the heater 23 is discharged to the steam treatment unit 30 through the steam outlet 21d.

5 and 6, the heater 23 is a temperature sensor for sensing the temperature of the plurality of cartridge heaters 23a and the rotating plate 22 installed in the heater groove formed inside the rotating plate 22. 23b is provided.

On the other hand, a plurality of steam induction ribs 22a are provided at the upper edge of the rotating plate 22 to guide vaporized vapor to the steam outlet 21d. The steam induction ribs 22a may be formed at two to four edges of the rotating plate 22, but the number thereof is not limited thereto.

In addition, the shape of the steam induction rib 22a may be formed in a polygon such as a circle, a triangle, a square, etc., but the shape is not necessarily limited to the above case, and any shape as long as it is a shape for maintaining a steam induction function. It may be formed.

The housing 21a may be formed in a dome shape as illustrated, but is not necessarily limited thereto, and may be formed in a cylindrical shape, a conical shape, or a combination of a cone and a cylinder as shown in FIG. 4. . In addition, when the housing 21a is formed in a shape combined with the cone and the cylinder, the angle α of the cone may be freely formed within a range of 0 to 90 °, and the angle β of the cylinder is also 0. It can be freely formed in the range of from 90 °.

The drive unit 24 drives the rotary plate 22 to rotate, and is coupled to a lower portion of the rotary plate 22 and extends downward through the support plate 21b to extend downward, and a driving motor ( 24b) and power transmission means for transmitting the power of the drive motor 24b to the shaft 24a.

The power transmission means comprises a driven sprocket 24c coupled to the shaft 24a, a drive sprocket 24d coupled to the shaft of the drive motor 24b, and a driven sprocket 24c and the drive sprocket 24d. It is comprised including the chain 24e which connects. In the illustrated example, the power transmission means is shown as an example of a chain, the power transmission means may be of a belt or gear train structure.

An electric wire 23c for supplying power to the cartridge heater 23a of the heater 23 described above is installed through the hollow shaft 24a of the driving unit 24, and the temperature sensor 23b is provided with a rotating plate ( 22) can be mounted to the heater groove.

One end of the steam discharge pipe 25 is connected to a steam outlet 21d of the housing 21a, and the other end is connected to a steam treatment unit 30 to be described later, to vaporize the vapor evaporated from the evaporation chamber 21. Discharge to the steam treatment unit (30).

The steam processing unit 30 is to condense and process steam vaporized and discharged by the evaporation unit 20, and includes a condensation unit 31 and a discharge unit 32.

The condensation unit 31 is to liquefy the steam discharged from the evaporation unit (20). The condensation unit 31 includes a heat exchanger 31a having one end connected to the vapor discharge pipe 25 of the evaporation unit 20 and a cooler 31b for cooling the heat exchanger 31a.

The discharge unit 32 discharges the condensed oil liquefied by the condensation unit 31. The discharge unit 32 is connected to the other end of the heat exchanger (31a) by a third pipe (33) connected to the vacuum chamber (32a) receiving the condensed oil, the vacuum chamber (32a) and the fourth pipe (34) Regeneration oil storage tank 32c connected to the discharge chamber 32b, the discharge chamber 32b and the fifth pipe 35, a fourth open / close valve 32d to open and close the fourth pipe 34, and the fifth And a fifth release valve 32e for opening and closing the pipe 35 and a vacuum release valve 32f for releasing the vacuum of the discharge chamber 32b.

The vacuum unit 40 forms a predetermined vacuum pressure in a system including the evaporation unit 20 and the steam processing unit 30, and is connected to the vacuum chamber 32a by a sixth pipe 41. It includes a pump.

By the vacuum unit 40 as described above, a predetermined vacuum is applied to the system, and the evaporation unit 20 can also lower the heating temperature compared to atmospheric pressure by heating the waste oil in a predetermined vacuum atmosphere.

Finally, the droplet recovery unit 50 collects droplets (oil droplets) which are not discharged by the condensation phenomenon from the evaporation unit 20 but are formed in the wall of the evaporation chamber 21 and are present in the liquid phase. 30). That is, in the conventional case, as the droplets formed on the wall of the evaporation chamber 21 fall back into the evaporation chamber as described above, the yield was not good. However, in the present invention, the droplets formed on the walls of the evaporation chamber are collected as described above, and the steam treatment unit is collected. Can be used to improve the yield.

Specifically, the droplet recovery unit 50 is installed on the lower side of the inner circumferential surface of the evaporation chamber 21 is formed on the wall of the evaporation chamber and collecting the droplets falling along the wall and the house glass And a droplet discharge pipe 52 which connects the collecting glass 51 and the steam processing unit 30 to discharge the droplets collected in the 51 to the steam processing unit 30. More specifically, the droplet discharge pipe 52 is connected to the third pipe 33 connecting the heat exchanger 31a and the vacuum chamber 32a. That is, since the droplets discharged through the droplet discharge pipe 52 are already liquefied, there is no need to pass through the heat exchanger, and the liquid discharged through the heat exchanger is discharged to the vacuum chamber 32a.

Hereinafter, the operation of the waste oil recycling apparatus according to the present invention as described above will be described.

When the device is operated, a predetermined vacuum pressure is generated in the system by the vacuum unit 40. The system is operated in a given vacuum atmosphere because the boiling point of the fluid at vacuum pressure is lower than at atmospheric pressure, so that the process can be evaporated at a lower temperature if the process is carried out in a given vacuum atmosphere. At this time, the preferred vacuum pressure is about 10 torr but not necessarily limited thereto.

The waste oil in the waste oil supply chamber 13 is transferred to the evaporation chamber 21 of the evaporation unit 20 through the waste oil supply pipe 14 by a pressure difference or pumping with the evaporation chamber 21, and the waste oil conveyed in this way is It is dripped in the substantially center part of the rotating plate 22 rotatably installed in the evaporation chamber 21 through the nozzle 21f connected to the waste oil supply port of the evaporation chamber 21.

Since the rotating plate 22 is being rotated at a predetermined rotational speed by the drive unit 24, the waste oil dropped on the rotating plate 22 forms a thin fluid thin film while spreading to the edge of the rotating plate 22 by centrifugal force.

 As described above, the waste oil which forms a thin fluid thin film in the rotating plate 22 is heated by the heater 23 embedded in the rotating plate 22, whereby the oil component in the waste oil is vaporized and evaporated.

The vaporized steam is discharged to the steam discharge port 21d while being guided by a plurality of steam induction ribs 22a installed at the edge of the rotary plate 22, and the waste oil sludge on the rotary plate 22 falls down from the rotary plate to the sludge discharge pipe ( After discharged to the waste oil supply chamber 13 through 15) and finally discharged to the sludge storage tank 17 is stored.

 The vaporized vapor is transferred to the condensation unit 31 through the steam discharge pipe 25 and liquefied while passing through the heat exchanger 31a. The condensed oil is transferred to the vacuum chamber 32a and temporarily stored. On the other hand, some of the vapor evaporated in the evaporation unit 20 is not discharged to the steam outlet 21d by the condensation phenomenon is formed on the wall of the evaporation chamber 21, according to the present invention, the evaporation chamber ( Oil droplets (droplets) formed on the walls of the 21 may be collected and collected in the vacuum chamber 32a.

That is, the droplets formed on the wall of the evaporation chamber 21 are lowered down the wall of the evaporation chamber 21. Since the house glass bar 51 is provided on the lower side of the wall of the evaporation chamber 21, The droplets are collected in 51, and the liquefied oil collected in the collecting glass 51 is passed through the third pipe 33 under the heat exchanger 31a through the droplet discharge pipe 52 to the vacuum chamber 32a. It is transferred and temporarily stored in the vacuum chamber.

When the condensed oil of a certain level is stored in the vacuum chamber 32a by the above-described action, the fourth open / close valve 32d operates to open the fourth pipe 34 and the condensed oil of the vacuum chamber 32a is discharged. It is transferred to 32b.

When the condensed oil in the vacuum chamber 32a falls below a predetermined level, the fourth open / close valve 32d is closed and the vacuum release valve 32f is opened to release the vacuum of the discharge chamber 32b, and then the fifth open / close valve ( 32e) opens the fifth pipe 35 so that the condensed oil in the discharge chamber 32b is transferred to the regeneration oil storage tank 32c through the fifth pipe 35 and stored.

As the above operation proceeds continuously, a certain amount of waste oil is regenerated. According to the present invention, the waste oil is transferred to the rotating plate of the evaporation chamber and is directly heated by a heater while forming a fluid thin film, thereby improving thermal efficiency. The evaporation rate can be improved.

In addition, according to the present invention, since all the oil droplets formed on the wall of the evaporation chamber by the condensation phenomenon in the evaporation chamber can be recovered and treated by the steam treatment unit, the yield can be improved.

While the invention has been described with respect to specific embodiments thereof, it will be apparent to one skilled in the art that the invention may be embodied in other specific forms without departing from the essential characteristics thereof. Accordingly, the described embodiments are to be considered in all respects as illustrative and not restrictive, and therefore, all modifications apparent to those skilled in the art are included therein.

10; waste oil supply unit 11; waste oil storage tank
12, 16; connecting piping 13; waste oil supply chamber
14; waste oil supply pipe 15; sludge discharge pipe
17; sludge storage tank 20; evaporation unit
21; evaporation chamber 21a; housing
21b; support plate 21c; waste oil supply port
21d; Steam outlet 21e; Sludge outlet
21f; 21g nozzle; observation window
21h; Vacuum control valve
22; rotating plate 22a; steam induction rib
23; heater 24; drive unit
25; steam exhaust pipe
30; steam treatment unit 31; condensation unit
31a; heat exchanger 31b; cooler
32; discharge unit 32a; vacuum chamber
32b; discharge chamber 32c; regenerated oil storage tank
32d; 32e; Piping open and close valve 32f; Vacuum release valve
33, 34, 35, 41; connecting piping 40; vacuum unit
50; droplet recovery unit 51; house glass
52; droplet discharge pipe

Claims (15)

A waste oil supply unit for supplying waste oil;
An evaporation unit for directly heating and vaporizing the waste oil supplied from the waste oil supply unit;
A steam treatment unit for condensing and treating the vapor vaporized and discharged by the evaporation unit;
A vacuum unit for forming a predetermined vacuum pressure in the evaporation unit and the steam processing unit; And
A droplet recovery unit comprising: a droplet recovery unit for collecting liquid droplets which are not discharged by the condensation from the evaporation unit and are present in the liquid phase on the wall of the evaporation chamber and recovering the droplets to the steam processing unit.
The evaporation unit,
An evaporation chamber having a housing provided with a waste oil supply port and a vapor discharge port, and a support plate hermetically coupled to a lower portion of the housing and having a sludge discharge port;
A rotating plate rotatably installed in the evaporation chamber to form waste oil introduced through the waste oil supply port into a thin film by centrifugal force;
A heater embedded in the rotating plate to heat a thin fluid film on the rotating plate;
A driving unit for rotating the rotating plate; And
And a steam discharge pipe connected to the steam discharge port. According to claim 1, The waste oil supply unit,
A waste oil storage tank for storing waste oil;
A waste oil supply chamber connected to the waste oil storage tank and a first pipe;
A waste oil supply pipe for supplying waste oil of the waste oil supply chamber to the evaporation unit;
A sludge discharge pipe for discharging the sludge vaporized in the evaporation unit to the waste oil supply chamber; And
And a sludge storage tank connected to a second pipe at a lower portion of the waste oil supply chamber. delete The method of claim 1,
The waste oil supply port of the housing is provided with a nozzle for dropping the supplied waste oil to the center portion of the rotating plate,
Waste oil regeneration device, characterized in that a plurality of steam induction ribs are installed on the upper edge of the rotating plate to guide the vaporized vapor to the steam outlet. The method of claim 1,
The housing is a waste oil regeneration device, characterized in that the observation window for observing the inside of the evaporation chamber is installed. The method of claim 1,
And a vacuum control valve is installed in the housing to finely adjust the internal vacuum pressure of the evaporation chamber. The method of claim 1,
And the housing is formed in any one shape selected from a dome shape, a cylindrical shape, a conical shape, and a combination of a cone and a cylinder. The driving apparatus according to claim 1,
A hollow shaft coupled to a lower portion of the rotating plate and extending downward through the support plate;
A drive motor; And
And a power transmission means for transmitting the power of the drive motor to the shaft. The method of claim 8, wherein the power transmission means,
A driven sprocket coupled to the shaft;
A drive sprocket coupled to the drive motor shaft; And
And a chain connecting the driven sprocket and the drive sprocket. The method of claim 8, wherein the heater,
A cartridge heater provided at a lower portion of the rotating plate so as to generate heat by receiving power from an electric wire installed to reach the heater groove formed in the rotating plate through the inside of the shaft; And
And a temperature sensor installed to reach a heater groove formed in the rotating plate through the inside of the shaft, and configured to sense a temperature of the cartridge heater. According to claim 1, wherein the steam treatment unit,
A condensation unit for liquefying steam discharged from the evaporation unit; And
And a discharge unit for discharging the condensed oil liquefied by the condensation unit. The method of claim 11, wherein the condensation unit,
A heat exchanger connected to the vapor discharge pipe of the evaporation unit; And
And a cooler for cooling the heat exchanger. The method of claim 12, wherein the discharge unit,
A vacuum chamber connected to the heat exchanger and a third pipe to receive a condensate;
A discharge chamber connected to the vacuum chamber and a fourth pipe;
A regeneration oil storage tank connected to the discharge chamber and a fifth pipe;
A fourth open / close valve for opening and closing the fourth pipe;
A fifth open / close valve for opening and closing the fifth pipe; And
And a vacuum release valve for releasing the vacuum of the discharge chamber. The method of claim 13,
And the vacuum unit comprises a vacuum pump connected to the vacuum chamber by a sixth pipe. According to claim 1, wherein the droplet recovery unit,
A collecting glass which is installed on the inner circumferential surface of the evaporation chamber and collects the droplets descending along the inner circumferential surface of the evaporation chamber; And
And a droplet discharge pipe connecting the collector glass and the steam treatment unit to discharge the droplets collected in the collector glass to the steam treatment unit.

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