KR101047506B1 - Waste oil purification device and control method accordingly - Google Patents

Abstract

The present invention relates to a waste oil purification apparatus and a control method thereof, and more particularly, to separate the fluid of the waste lubricating oil and the waste oil through a fluid evaporator to be separated into steam and sludge, and to treat the separated sludge through a sludge treatment unit. In addition, by treating the evaporated steam through the steam treatment unit, the evaporation of the fluid and the steam, sludge treatment can be carried out continuously to increase the work progress efficiency, thereby increasing the efficiency of the purification device.

Waste Oil Purifier, Condenser, Sludge, Centrifugal, Thin Film, Evaporator, Centrifugal Force

Description

Waste oil purification equipment and control method {Waste oil purification equipment and Control Method For The Same}

The present invention relates to a waste oil purification apparatus and a control method thereof, and more particularly, to separate the fluid of the waste lubricating oil and the waste oil through a fluid evaporator to be separated into steam and sludge, and to treat the separated sludge through a sludge treatment unit. In addition, by treating the evaporated steam through the steam treatment unit, the evaporation of the fluid and the steam, sludge treatment can be carried out continuously to increase the work progress efficiency, thereby increasing the efficiency of the waste oil purification device and accordingly It relates to a control method.

The method of purifying waste oil is generally classified into chemical treatment and physical treatment. The chemical treatment method is typical of the ionic refining method used by the existing waste oil recycling companies, but this method is a high-temperature pyrolysis method, which is a physical method in the Ministry of Environment since the quality of refined products is low and contains many environmental pollutants. A change is recommended.

These wastewaters were economically lost using coagulation sedimentation method using coagulant precipitant or chemicals, or the waste water of automobile car wash repair factory was mixed with oil to contaminate sewage, but waste oil was separated from water to contaminate water. It was desired that a device be applied to economically remove slotch (float) from wastewater.

On the other hand, high-temperature pyrolysis is a high value-added purification method because it has higher quality level of purified products and less environmental pollutants than ion purification method.

However, the high temperature pyrolysis method has a disadvantage that the product is unstable, tar is generated, and bad odor because it is pyrolyzed by heating to a high temperature (370 ℃ ~ 550 ℃) at atmospheric pressure. After a certain period of 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, and much effort and attention to the operation of the equipment are required. Required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems,

Evaporation and vaporization of the fluid by evaporating the fluid of the waste lubricating oil and waste oil through the fluid evaporator to separate the steam and sludge, the separated sludge is processed through the sludge treatment unit, and the evaporated steam through the steam treatment unit It is an object of the present invention to provide a waste oil purification apparatus and a control method according to which the sludge treatment can be continuously performed, thereby increasing the work progress efficiency, thereby increasing the efficiency of the purification apparatus.

In order to achieve the above object, the present invention is a device for purifying the fluid of the waste lubricating oil and waste oil,

A fluid evaporation unit in which a fluid is introduced from the outside and heats and evaporates the fluid;

A sludge treatment unit connected to the fluid evaporation unit to evaporate the fluid and then transport the remaining sludge to process the sludge;

And a steam processing unit connected to the fluid evaporation unit to transfer the vapor of the evaporated fluid, and condensing the transferred steam into a purified liquid in a liquid state. .

In addition, the present invention is a control method of the waste oil purification apparatus,

Distilling the fluid of the waste lubricant oil and the waste oil introduced from the outside by the fluid evaporator to separate the steam and the sludge (S100);

Separating the fluid into steam and sludge by the fluid evaporator (S100), and then treating the sludge separated from the fluid by the sludge treatment unit (S200);

After the step of separating the fluid into steam and sludge by the fluid evaporator (S100), the step of treating the vapor evaporated from the fluid by the steam treatment unit (S300); control of the waste oil purification apparatus comprising a It is about a method.

As described above, the waste oil purification apparatus and control method thereof according to the present invention evaporate the fluid of the waste lubricating oil and the waste oil through the fluid evaporator to separate the steam and sludge, and process the separated sludge through the sludge treatment unit. In addition, by treating the evaporated steam through the steam treatment unit, the evaporation of the fluid and the steam, sludge treatment can be carried out continuously to increase the work progress efficiency, thereby increasing the efficiency of the purification device.

The present invention has the following features to achieve the above object.

The present invention is a device for purifying the fluid of the waste lubricant and waste oil,

A fluid evaporation unit in which a fluid is introduced from the outside and heats and evaporates the fluid;

A sludge treatment unit connected to the fluid evaporation unit to evaporate the fluid and then transport the remaining sludge to process the sludge;

And a steam processing unit connected to the fluid evaporation unit to transfer the vapor of the evaporated fluid, and condensing the transferred steam into a purified liquid in a liquid state.

In addition, the present invention is a control method of the waste oil purification apparatus,

Distilling the fluid of the waste lubricant oil and the waste oil introduced from the outside by the fluid evaporator to separate the steam and the sludge (S100);

Separating the fluid into steam and sludge by the fluid evaporator (S100), and then treating the sludge separated from the fluid by the sludge treatment unit (S200);

And separating the fluid into steam and sludge by the fluid evaporator (S100), and then treating the vapor evaporated from the fluid by the steam processor (S300).

The present invention having such characteristics can be more clearly described by the preferred embodiments thereof.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a schematic view showing a waste oil purification apparatus according to an embodiment of the present invention, Figure 2 is a schematic view showing a fluid evaporation unit according to an embodiment of the present invention.

As shown in FIG. 1, the waste oil purification apparatus of the present invention includes a fluid evaporation unit 100, a sludge treatment unit 200, and a steam treatment unit 300 to purify the fluid of waste lubricant oil and waste oil.

As shown in FIG. 2, the fluid evaporator 100 includes a housing 10, a heating unit 20, a driving unit, and an induction unit 40 to evaporate a fluid such as waste oil, waste lubricant, or general water. ), The evaporator 50, and the preheater 60.

The housing 10 is formed to be elongated in the vertical direction in a cylindrical shape as a whole, and the inside thereof is maintained in a vacuum state. At this time, the vacuum state inside the housing 10 is always maintained in a vacuum by a vacuum pump (not shown) installed on the outside so that the suction port of the vacuum pump is in communication with the tube inside the housing 10 It is.

Here, the upper one side surface of the housing 10 is formed through the transfer pipe 11 for transferring the external fluid to the inside, the transfer pipe 11 is provided to the inside of the housing 10 end is lower The fluid is delivered from a fluid tank (not shown) installed outside, and the fluid is sucked into the housing 10 by the vacuum pressure because the inside of the housing 10 is in a vacuum state. Will be.

In addition, the transfer pipe 11 is provided with a solenoid valve (V1) to open and close the pipeline, the solenoid valve (V1) is controlled by a control device (not shown) connected to the outside.

In addition, the lower surface of the housing 10 is the sludge discharge port 12 is formed so that the sludge is left after the evaporation of the fluid introduced through the transfer pipe 11 is provided at the lower end of the housing 10 to discharge to the outside. The sludge discharge port 12 is slanted toward the sludge discharge port 12 to smoothly discharge the sludge, the lower surface is formed, the lower end of the housing 10 to measure the amount of sludge accumulated in the interior of the housing 10 The sludge position sensor 80 is further installed.

Here, the upper surface of the housing 10 is inclined so that the vapor of the evaporated fluid is smoothly discharged to the outside, the steam outlet 13 for guiding the discharge of steam to the outside of the inclined upper portion of the housing 10 ) Is communicated.

In addition, a plurality of fluid position sensors 14a and 14b are formed at the lower end of the housing 10 to penetrate the inside and the outside of the housing 10 to measure the storage amount of the fluid introduced into the housing 10. 14a and 14b are provided with a height difference between the fluid fluid upper position sensor 14a and the fluid fluid lower position sensor 14b, respectively, to measure the storage amount of the fluid, and measured by the fluid position sensors 14a and 14b. The measurement data may be transmitted to the control device to control the amount of internal fluid of the fluid evaporator 100.

Here, the fluid lower position sensor 14b installed at the lower end of the housing 10 to prevent damage due to overheating of the preheater 60 is preheated 60 installed through the lower end of the housing 10. Installed in a higher position, the preheater 60 is always located in oil. In addition, the outer peripheral surface of the housing 10 is provided with a heating unit 20 such as a fruit circulation jacket to heat the inner peripheral surface and the inside of the housing 10.

The heating unit 20 may be a heat medium oil or heated air, an electric heater from the outside, and when flowing a high temperature fluid such as heat medium oil or air into the heating unit 20 is introduced from the bottom to discharge to the top The inlet 21 is installed at the lower outer periphery of the heating unit 20 so that the heating medium 20 is heated so that the heat medium introduced through the inlet 21 heats the inside of the housing 10 and is then discharged to the outside again. The outlet 22 is formed on the outer periphery of the upper end of the portion 20. Of course, when the heating unit 20 is an electric heater, there is no heat oil circulation jacket, and the outer surface of the housing 10 may be directly heated by an electric heater.

The drive unit is composed of a motor 30, a shaft 31, and a pump 32, the motor 30 is provided on the upper surface of the housing 10, the rotation speed (rpm) is controlled by a controller The shaft 31 is coupled to the motor 30 to penetrate the inside of the housing 10 vertically, and the pump 32 is connected to the lower end of the shaft 31 and provided inside the housing 10. do.

Here, the pump 32 is a pump for circulating the fluid in the housing 10 and the pump 32 is driven by the rotation of the shaft 31 without a separate power supply.

In addition, the pump 32 is provided with an inlet pipe 33 in the lower direction of the pump 32 to pump and discharge the fluid stored in the lower portion of the housing 10, by the driving of the pump 32 A discharge pipe connected to one side of the pump 32 so that the fluid introduced into the pump through the pump inlet pipe 33 is transferred to the induction part 40 provided at the upper portion of the housing 10 through the circulation pipe 70 ( 34 protrudes out of the housing 10.

Here, to allow the fluid in the lower portion of the housing 10 to be transferred to the induction part 40 provided in the upper portion of the housing 10 through the discharge pipe 34 by the driving of the circulation pump 32. A circulation pipe 70 is further formed between the induction part 40 and the discharge pipe 34, and the circulation pipe 70 communicates with the transfer pipe 11.

In addition, the circulation pipe 70 is further provided with a solenoid valve (V2) to open and close the pipeline, the solenoid valve (V2) is controlled by the signal of the control device. In addition, the circulation pipe 70 may be further provided with a flow rate control valve 72 to adjust the amount of fluid to be transferred.

In addition, the discharge pipe 34 is provided with a bypass pipe (71). One end of the bypass pipe 71 communicates with the lower portion of the housing 10, and the other end communicates with the discharge pipe 34 and the circulation pipe 70 simultaneously. The bypass pipe 71 is further provided with a solenoid valve (V3).

Here, the bypass pipe 71 rotates while the fluid is flowing into the housing 10 through the transfer pipe 11, and the pump 32 is also operated. In addition, the fluid is provided through the discharge pipe 34 to bypass the inside of the housing 10 without being transferred to the circulation pipe 70.

The induction part 40 is provided in a concentric cylinder at an upper position of the shaft 31 provided inside the housing 10, and is fixedly installed inside the housing 10, and flows in through the circulation pipe 70. The introduced fluid is introduced into the induction part 40, and the fluid is formed in the shape of a funnel in cross section so as to be led downward along the axis 31.

Here, the induction part 40 is formed concentrically with the shaft 31 so that the outer peripheral surface of the shaft 31 and the lower inner peripheral surface of the induction part 40 are provided spaced at a predetermined interval, thereby falling away from the induction part 40. The fluid is conveyed to the upper portion of the disc 51 along the shaft 31 through the spaced gap.

The evaporator 50 is composed of a disc 51 and a blade 52 with reference to Figure 2, the disc 51 is in the longitudinal direction on the outer periphery of the shaft 31 which is the lower end of the guide portion 40 A plurality of spaced apart at regular intervals are installed, and a plurality of blades 52 are vertically spaced apart in the circumferential direction on the lower surface of the disc 51. At this time, the disc 51 is coupled to the shaft 31 is rotated simultaneously with the rotation of the shaft (31).

Here, the disk 51 is the fluid transported along the shaft 31 is provided on the upper surface of the disk 51 is transferred to the outer periphery of the disk 51 by the centrifugal force during the rotation of the disk 51 A thin thin film of fluid is formed on the upper surface of the disc 51, and such a thin film evaporates very easily even in a small heat, and evaporation occurs very smoothly even at a low temperature in a vacuum state.

In addition, the thin film formed on the upper surface of the disk 51 is very easy to evaporate by increasing the heat transfer area of the fluid and heat. In addition, one end surface of the disc 51, that is, near the center portion in which the shaft 31 is inserted, is formed with a fluid transfer hole (not shown) in the circumferential direction, so that some of the fluid introduced into the disc 51 is directly below the disc. Falling on the 51, the remaining fluid is transferred to the outer peripheral side of the disc 51 by the centrifugal force to form a thin film, a plurality of the disc 51 is provided so that the thin film formation by centrifugal force occurs simultaneously on the top of the plurality of discs The amount of fluid evaporated increases very rapidly.

In addition, due to the large number of the disc 51, the vapor of the fluid evaporated in the interior of the housing 10 may be restricted to move to the upper portion of the housing 10 to smoothly discharge to the outside of the housing 10. In consideration of this, a plurality of vapor transfer holes (not shown) are formed at one end surface of the disc 51, and a plurality of vapor transfer holes are formed radially around the central portion of the disc 51. The transfer holes are spaced apart from the fluid transfer holes and do not interfere with each other.

Here, the blade 52 is formed perpendicular to the lower surface of the disc 51, the blade 52 is the disc 51 so that the outer periphery of the disc 51 and one side of the blade 52 is in the same line ) Is installed on the bottom surface.

In addition, between the outer circumferential surface (one side of the blade 52) of the disk 51 and the inner circumferential surface of the housing 10, the disk 51 is formed so as to be spaced apart by 1-2mm, the centrifugal force of the disk 51 Thin film evaporation occurs at the upper surface and the remaining residual fluid moves to the inner circumferential surface of the housing 10 by centrifugal force and flows along the inner circumferential surface of the housing, and at one side of the blade 52 provided at the lower portion of the rotating disk 51. As a result, a forced thin film is formed between the blade 52 and the inner circumference of the housing 10, and the fluid thin film also actively evaporates even at a low temperature in a vacuum state.

That is, the fluid flowing into the housing 10 as a whole is first evaporated by a thin film formed on the upper surface of the disc 51, and a forced thin film formed between the blade 52 and the inner peripheral surface of the housing 10. By the second evaporation occurs, the evaporation performance is drastically increased.

Here, the disk 51 is provided in a horizontal plane, but considering the centrifugal force and the formation of a thin film and the fluid transfer to the lower disk, forming the upper surface 51 of the disk 51 to be inclined in the outer circumferential direction. More preferred.

That is, the disc 51 is formed to be inclined upwardly in the outer circumferential direction with respect to the center portion, more preferably in the form of a funnel shape with a gentle angle in cross section.

The preheating unit 60 is formed through the lower side of the housing 10 to transfer external heat into the housing 10 through the heater 61 to heat the fluid stored in the lower portion of the housing 10. As a role, the heating apparatus generally used may be used.

3 is a schematic view showing a sludge treatment unit according to an embodiment of the present invention. As shown in FIG. 3, the sludge treatment unit 200 includes a sludge transport pipe 210, a sludge temporary storage tank 220, and a sludge discharge pipe 230 so as to easily treat sludge discharged from the housing 10. And, the sludge storage tank 240 is configured.

Here, the sludge transport pipe 210 is in communication with the sludge outlet 12, one side is in communication with the upper surface of the sludge temporary storage tank 220 to transfer the sludge of the housing 10, the sludge transport pipe One end of the 210 is provided with a solenoid valve (V4) to open and close the conveyed sludge.

In addition, the sludge temporary storage tank 220 is a tank for temporarily storing the sludge conveyed in communication with the upper end of the sludge transport pipe 210 to maintain the same pressure (vacuum state) as the housing 10. The inside of the sludge temporary storage tank 220 is maintained in a vacuum state by a vacuum device (not shown) connected to the outside.

Here, the pressure opening and closing valve 221 is installed through one end of the sludge temporary storage tank 220 to maintain the vacuum state of the sludge storage tank 240 with the external pressure to store the sludge by the transfer pump. The tank 240 can be easily discharged. At this time, the pressure opening and closing valve 221 through the opening in the outside air according to the vacuum in the sludge temporary storage tank 220, the external pressure and the pressure in the sludge temporary storage tank 220 is the same.

In addition, in the sludge temporary storage tank 220, the sludge upper position sensor 222 and the sludge lower position sensor 223 are spaced apart from each other by a height difference so as to measure the amount of sludge temporarily stored therein.

In addition, the sludge discharge pipe 230 is installed through one end of the sludge storage tank 240 to transfer the sludge to the sludge storage tank 240, the solenoid valve for opening and closing the sludge at one end of the sludge discharge pipe 230. (V5) and the transfer pump 231 for transporting the sludge to one side along the sludge discharge pipe 230 is installed. In addition, the sludge storage tank 240 is connected to the end of the sludge discharge pipe 230 to store the sludge conveyed by the transfer pump 231.

4 is a schematic view showing a steam treatment unit according to an embodiment of the present invention. As shown in FIG. 4, the steam treatment unit 300 is connected to the fluid evaporator 100 to transfer the vapor in which the fluid is evaporated, and to transfer the vapor to condensed and converted into a purified fluid. 310, a condenser 320, a condensate discharge pipe 330, and a condensate storage tank 340.

Here, the steam transfer pipe 310 is in communication with one side of the steam outlet 13 of the housing 10, the other side is connected to the plurality of condenser 320 to transfer the steam, the steam transfer pipe 310 A plurality of branch pipes branch from one tube to communicate with each of the plurality of condensers 320.

In addition, solenoid valves V6, V7, and V8 are respectively installed in the branch pipes of the steam transfer pipe 310 so as to open and close the transfer of steam. In the present invention, the number of solenoid valves V6, V7, and V8 is three. However, there is a change in the number depending on the number of condenser 320.

The condenser 320 is a device in which steam transferred through the steam conveying pipe 310 flows into the condensate to convert condensed water into condensed water, and the condenser 320 has a structure and a principle of condensation. The above description is not made. However, each of the condenser 320, the condensate upper position sensor 321 and the condensate lower position sensor 322 are respectively installed to measure the amount of condensate is converted and stored therein, the condensate upper position sensor 321 ) And the solenoid valve (V6, V7, V8, V9, V10, V11) according to the signal detected by the lower position sensor 322 to transfer steam and condensate.

Here, the condensate discharge pipe 330 is branched to each of the plurality of condenser 320 is communicated with each other, and the solenoid valve (V9, V10, V11) to open and close the transfer of the condensate to the branch pipe of the condensate discharge pipe 330, respectively. Is installed, the transfer pipe 331 is installed in the condensate discharge pipe 330 in which the branch pipe is integrated into one to discharge the condensed water condensed from the condenser 320 to the condensate storage tank 340. In addition, the condensate storage tank 340 stores the condensed water communicated with and communicated with an end portion of the condensate discharge pipe 330.

The waste oil purification apparatus described above is easily removable because it can be attached to or removed from a moving means such as a vehicle.

The waste oil purification apparatus described above is controlled by a controller installed and connected to the outside. Hereinafter, a control method of the waste oil purification apparatus will be described with reference to the drawings.

5 is a flow chart showing a control method of the waste oil purification apparatus according to an embodiment of the present invention, Figure 6 is a flow chart showing a control method of the fluid evaporation unit according to an embodiment of the present invention, Figure 7 is one of the present invention 8 is a flowchart illustrating a control method of a sludge treatment unit according to an embodiment, and FIG. 8 is a flowchart illustrating a control method of a steam treatment unit according to an embodiment of the present invention.

As shown in Figure 5, the control method of the waste oil purification apparatus is a step of evaporating the fluid of the waste lubricating oil and waste oil introduced from the outside by the fluid evaporator 100 to separate the steam and sludge (S100), After the step of separating the fluid into steam and sludge by the fluid evaporator 100 (S100), the step of treating the sludge separated from the fluid by the sludge treatment unit 200 (S200), and the fluid evaporator 100 After the step (S100) of separating the fluid into steam and sludge by), the step of processing the steam evaporated from the fluid by the steam processing unit 300 (S300).

Separating the fluid into steam and sludge by evaporation (S100) is a control method of the fluid evaporation unit 100, as shown in Figure 6, first when the operation starts by the controller (not shown), the housing ( In order to check the amount of fluid stored in the lower part of 10), the signal of the fluid upper position sensor 14a and the fluid lower position sensor 14b is sensed, and if the signal of the fluid lower position sensor 14b is detected, the transfer The solenoid valve V1 provided in the pipe 11 is opened, the solenoid valve V2 provided in the circulation pipe 70 is closed, and the solenoid valve V3 provided in the bypass pipe 71 is opened. Thus, the fluid is transferred to the housing 10 in a vacuum state from the outside through the transfer pipe 11 (S110), the fluid discharged by the operation of the circulation pump 32 is the lower portion of the housing 10 Is reflowed into and stored in the lower portion of the housing (10). At this time, the fluid transported to the housing 10 falls on the induction part 40, and the induction part 40 transfers the fluid downward along the axis 31 to the upper surface of the disc 51 of the evaporation part 50. Inflow. (S120)

Here, the disk 51 is rotated by the shaft 31 to partially transfer the fluid introduced into the upper surface of the disk 51 to the outer periphery of the disk 51 by centrifugal force, and part of the disk 51 through the fluid transfer hole. It is conveyed to the rotating disc 51 provided at the bottom and this process takes place continuously. In the process, the primary thin film of the fluid is formed on the upper surface of the disk 51, so that the contact area with heat is large, so that evaporation is easily performed even at low temperature (S130), some of the fluid is not evaporated is the disk 51 It is conveyed downward from the outer circumference of the, at this time, a forced thin film 55 of the fluid is formed on the inner circumference of the blade 52 and the housing 10, thereby the fluid evaporates very smoothly once again. (S140 )

In addition, the heat source to evaporate the fluid is transmitted through the heating unit 20 is installed on the outer periphery of the housing 10, the heating medium 20 is always circulated in the heating unit 20 or the heater is built-in.

Evaporation takes place while passing through the plurality of evaporator 50 in the above manner, the fluid that has not been evaporated is stored in the lower end of the housing 10, the stored fluid is heated by the preheater (60) (S150). At this time, the preheating part 60 is operated only when the fluid filled in the lower end of the housing 10 is higher than the fluid lower position sensor 14b installed at the lower end of the housing 10.

Along with the evaporation process, the fluid continuously introduced through the transfer pipe 11 is stored in the lower portion of the housing 10 after evaporation.

Here, when a signal of the fluid upper position sensor 14a is sensed while the fluid is being stored in the lower portion of the housing 10, the solenoid valve V1 provided in the transfer pipe 11 is closed and the bypass pipe is closed. The solenoid valve V3 provided at 71 is also closed, and the solenoid valve V2 provided at the circulation pipe 70 is opened to stop the inflow of fluid from the outside into the housing 10, and the circulation pump Fluid discharged by the 32 is transferred to the upper portion of the housing 10 through the circulation pipe 70 and the circulation process of the fluid flowing into the induction pipe 40 is repeated, resulting in continuous evaporation. (S160)

As the fluid inside the housing 10 circulates and evaporates, the amount of fluid stored in the lower part of the housing gradually decreases, and when the upper surface of the fluid reaches the position of the fluid lower position sensor 14b, the fluid lower position The solenoid valve V2 provided in the circulation pipe 70 is closed by the signal of the sensor 14b, the solenoid valve V3 provided in the bypass pipe 71 is opened, and the transfer pipe 11 is closed. The solenoid valve (V1) provided in the) is also opened so that the external fluid flows into the housing 10 (S170), at this time, the fluid discharged to the circulation pump 32 is the bypass pipe (71) It is re-introduced into the lower portion of the housing 10 through.

If the signal of the fluid upper position sensor 14a provided in the lower portion of the housing 10 is detected at the start of operation, the solenoid valve V1 provided in the transfer pipe 11 is closed and the circulation pipe 70 The solenoid valve (V2) provided in the) is opened, the solenoid valve (V3) provided in the bypass pipe 71 is closed, the fluid flows into the upper portion of the housing 10 through the circulation pipe (70) Subsequently, a continuous evaporation process is performed in the same manner as described above.

Such processes are continuously repeated, so that the operation of the fluid evaporator 100 is not stopped in the continuous evaporation process, and the inflow and evaporation of the fluid occur continuously at the same time.

The treatment of the sludge separated from the fluid (S200) is a control method of the sludge treatment unit 200, as shown in FIG. 7. First, the inside of the sludge temporary storage tank 220 is vacuumed by vacuum means. When the sludge reaches the sludge position sensor 80 of the housing 10, the solenoid valve V4 provided in the sludge feed pipe 210 is opened to introduce the sludge into the sludge temporary storage tank 220. (S210)

Then, when the introduced sludge reaches the sludge upper position sensor 222 of the sludge temporary storage tank 220, the solenoid valve (V4) is closed, the pressure opening and closing valve 221 to open the sludge temporary storage tank 220 External air is introduced into the sludge temporary storage tank 220 through the pressure opening and closing valve 221 to maintain the pressure in the same as the external pressure.

Then, when the pressure in the sludge temporary storage tank 220 is the same as the external pressure, the solenoid valve V5 of the sludge discharge pipe 230 is opened, the sludge storage tank 240 through the sludge discharge pipe 230 ) Transferred to and stored within. (S230)

When the sludge of the sludge temporary storage tank 220 reaches the sludge lower position sensor 223, the solenoid valve V5 of the sludge discharge pipe 230 is closed and the sludge position sensor of the housing 10 is closed. When the sludge reaches 80, the solenoid valve V4 of the sludge feed pipe 210 is opened and the sludge flows into the sludge temporary storage tank 220. (S240)

These processes are repeated continuously, the operation of the sludge processing unit 200 is not stopped in the continuous treatment process of the sludge, the sludge is introduced and discharged to the sludge temporary storage tank 220 continuously.

The step (S300) of processing the vapor evaporated from the fluid is a control method of the steam processor 300, and as illustrated in FIG. 8, the steam discharged through the steam outlet 13 of the housing 10 transfers steam. When the transfer through the pipe 310, the solenoid valve (V6, V7, V8) of the steam transfer pipe 310 is sequentially opened to introduce steam into the condenser 320 (S310).

The condenser 320 converts the steam introduced from the condenser 320 into condensed water (S320). At this time, the solenoid valves V6, V7, and V8 of the steam transport pipe 310 are simultaneously opened to condenser 320 at a time. Steam may flow in, or the solenoid valves V6, V7, V8 are opened one by one to condense the steam in the condenser 320 so that the condensate reaches the condensate upper position sensor 321, and then the solenoid valve V7. ) Can be controlled by injecting steam into the next condenser 320 to condense.

Then, when the condensate reaches the condensate upper position sensor 321 of the condenser 320, the solenoid valve (V6, V7, V8) of the steam transfer pipe 310 is closed, the solenoid of the condensate discharge pipe 330 Open the valves (V9, V10, V11) to transfer the condensed water to the condensate storage tank 340 through the condensate discharge pipe 330 to store (S330) Here, the solenoid valve (V9, V10 and V11) can be controlled by opening condensate by opening them at the same time or by opening them one by one.

When the condensate of the condenser reaches the condensate lower position sensor, the solenoid valves V9, V10 and V11 of the condensate discharge pipe are closed and the solenoid valves V6, V7 and V8 of the steam feed pipe are opened to provide steam. Flows into the condenser. (S340)

As such, the above processes are continuously repeated, so that the operation of the steam processor 300 is not stopped in the continuous process of steam, and steam flows into the condenser 320 and condenses and discharges simultaneously.

1 is a schematic view showing a waste oil purification apparatus according to an embodiment of the present invention,

2 is a schematic view showing a fluid evaporation unit according to an embodiment of the present invention,

3 is a schematic view showing a sludge treatment unit according to an embodiment of the present invention,

4 is a schematic view showing a steam treatment unit according to an embodiment of the present invention,

5 is a flowchart showing a control method of a waste oil purification apparatus according to an embodiment of the present invention,

6 is a flow chart showing a control method of the fluid evaporator according to an embodiment of the present invention,

7 is a flowchart illustrating a control method of a sludge treatment unit according to an embodiment of the present invention.

8 is a flow chart showing a control method of the steam treatment unit according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10 housing 20 heating portion

30: motor 40: induction part

50: evaporator 60: preheater

61: heater 70: circulation tube

80: sludge position sensor 100: fluid evaporation unit

200: sludge treatment unit 210: sludge transport pipe

220: sludge temporary storage tank 221: pressure opening and closing valve

222: sludge upper position sensor 223: sludge lower position sensor

230: sludge discharge pipe 231, 331: transfer pump

240: sludge storage tank 300: steam treatment unit

310: steam transport pipe 320: condenser

321: condensate upper position sensor 322: condensate lower position sensor

330: condensate discharge pipe 340: condensate storage tank

Claims (13)

A device for purifying waste lubricant oil and waste oil, A fluid evaporation unit (100) for introducing a fluid from the outside and heating and evaporating the fluid; A sludge treatment unit 200 connected to the fluid evaporation unit 100 to evaporate the fluid and then transport the remaining sludge to process the sludge; And a steam processing unit 300 connected to the fluid evaporation unit 100 to transfer the vapor of the evaporated fluid, and condensing the transferred steam into a purified liquid in a liquid state. The fluid evaporation unit 100, the transfer pipe 11 for transferring the fluid inside the inside in a vacuum state to the inside is formed through the upper side to the inside, the inside is provided through the transfer pipe 11 A vapor discharge port 13 is formed in the upper part so that the converted gas is discharged to the steam treatment part 300 by evaporating the introduced fluid, and the bottom surface of the sludge left in the lower part is discharged to the sludge treatment part 200 by the evaporation of the fluid. A housing 10 in which a sludge outlet 12 is formed; A heating unit 20 provided on an outer circumferential surface of the housing 10 to heat an inner circumferential surface of the housing 10 and an inside thereof; The motor 30 is provided on the upper surface of the housing 10 and the shaft 31 is connected to the motor 30 and vertically penetrates the inside of the housing 10 and rotated by the motor 30. A drive unit; An induction part 40 provided at an upper side of the shaft 31 and formed in a funnel shape in cross section so that the fluid introduced through the transfer pipe 11 is guided downward along the shaft 31; A plurality of discs 51 are installed on the outer circumferential surface of the shaft 31 in the longitudinal direction and concentric with the housing 10, and the fluid transferred along the shaft 31 through the induction part 40 is the shaft ( It is supplied to the upper surface of the disk 51 located on the uppermost side of the plurality of disks 51 installed in the 31, the fluid is transferred to the outer peripheral surface of the disk 51 by the centrifugal force during the rotation of the disk 51 A thin film of fluid is formed on the upper surface of 51) and the heat transfer area between the fluid and the heat per unit volume is increased to cause the first evaporation. After the first evaporation, the residual fluid is the outer peripheral surface of the disc 51 by centrifugal force. One end of the plurality of blades 52 which are transported to the space between the inner peripheral surface of the housing 10 and vertically provided at the lower surface of the disc 51 and rotate in accordance with the rotation of the disc 51 when flowing along the space. Between the surface and the inner circumferential surface of the housing 10 An evaporator 50 in which a second thin film is formed and secondary evaporation occurs; A preheater 60 formed through the lower side of the housing 10 to transfer external heat to the inside of the housing 10 through the heater 61 to heat the stored fluid; Waste oil purification apparatus, characterized in that comprises a. The method of claim 1, Sludge position sensor (80) for measuring the amount of sludge accumulated in the interior of the housing 10, the lower end of the housing 10, characterized in that further installed. The sludge treatment unit 200 of claim 1, A sludge feed pipe 210 connected with the sludge discharge port 12 to transfer sludge, and having a solenoid valve V4 installed at one end thereof to open and close the conveyed sludge; Temporary storage of sludge communicated with the end portion of the sludge conveying pipe 210, the sludge temporary storage tank in which the inside is maintained in a vacuum state by a vacuum device connected to the outside to maintain the same pressure as the housing 10 220; A solenoid valve V5 is installed at one end to penetrate the sludge storage tank 240 and discharge the sludge to the outside, and open and close the sludge, and transfer the sludge to one side. A sludge discharge pipe 230 in which the pump 231 is installed; A sludge storage tank 240 which communicates with an end of the sludge discharge pipe 230 and stores the sludge transferred by the transfer pump 231; Waste oil purification apparatus, characterized in that comprises a. The method of claim 3, The sludge temporary storage tank 220 is provided with a pressure opening and closing valve 221 to maintain the vacuum state of the sludge storage tank 240 to the same as the external pressure so that the sludge is stored in the sludge storage tank by the transfer pump 231 ( Waste oil purification apparatus characterized in that it is easily discharged to 240). The method of claim 3, The sludge temporary storage tank 220, the sludge upper position sensor 222 and the sludge lower position sensor 223 are installed to be spaced apart from each other by a height difference so as to measure the amount of sludge temporarily stored therein. The method of claim 1, wherein the steam processing unit 300, A plurality of condensers (320) condensing the vapors transported by evaporation in the housing of the fluid evaporator (100); One side of the steam outlet 13 of the housing 10 is in communication with each other, the plurality of condenser 320 and the end is branched to the branch pipe so as to transfer the steam to the plurality of condenser 320, respectively, the branch pipe Steam transfer pipes 310 each having solenoid valves V6, V7, and V8 installed therein to open and close the transfer of steam to the steam; One end portion of the condenser 320 is branched and communicated with each other, and a transfer pump 331 is installed to discharge the condensed water condensed in the condenser 320, respectively, to open and close the transfer of the condensed water in the branch pipe A condensate discharge pipe 330 to which the solenoid valves V9, V10, and V11 are installed; A condensate storage tank 340 for storing condensate communicated with and communicated with an end of the condensate discharge pipe 330; Waste oil purification apparatus, characterized in that comprises a. The method of claim 6, The plurality of condensers 320 is provided with a condensate upper position sensor 321 and a condensate lower position sensor 322, respectively, to measure the amount of condensate is converted and stored therein, the condensate upper position sensor 321 and the condensate The solenoid valve (V6, V7, V8, V9, V10, V11) by opening and closing the solenoid valve according to the signal detected by the lower position sensor 322, characterized in that for conveying steam and condensate. In the control method of the waste oil purification device, Distilling the fluid of the waste lubricant oil and the waste oil introduced from the outside by the fluid evaporator 100 to separate the steam and the sludge (S100); Separating the fluid into steam and sludge by the fluid evaporator 100 (S100), and then treating the sludge separated from the fluid by the sludge treatment unit 200 (S200); And separating the fluid into steam and sludge by the fluid evaporator 100 (S100), and then treating the vapor evaporated from the fluid by the steam processor 300 (S300). Separating the fluid into steam and sludge by the fluid evaporator 100 (S100), the inside of the housing 10 by a vacuum means to maintain the vacuum state, the solenoid valve provided in the transfer pipe (11) Opening (V1) to flow the fluid from the outside into the interior of the housing 10 by the pressure difference of the vacuum (S110); Dropping the introduced fluid into the induction part 40 to guide the fluid to the disc 51 of the evaporation part 50 through the induction part 40 (S120); The disk 51 is rotated by the shaft 31, the fluid is transferred to the outer peripheral surface of the disk 51 by the centrifugal force on the upper surface of the disk 51 to form a primary thin film and the fluid is evaporated ( S130); The second step of evaporating the fluid that is not evaporated from the disk 51 to the outer peripheral surface of the disk 51 between the blade 52 and the inner peripheral surface of the housing 10 is formed and evaporated (S140); The fluid not evaporated through the evaporator 50 formed in multiple stages on the shaft 31 is filled in the lower end of the housing 10, and the filled fluid is heated through the preheater 60 (S150). ; When the fluid filled in the lower end of the housing 10 is filled to the fluid upper position sensor 14a provided in the lower portion of the housing 10, the solenoid valve V1 is closed and the solenoid valve V2 is opened to pump Step (S160) is circulated to the upper and lower portions of the housing 10 is transferred to the transfer pipe 11 through the flow control valve 72 through the 32; Continuous evaporation occurs inside the housing 10 so that the amount of fluid present in the housing 10 decreases, so that the fluid filled in the lower end of the housing 10 is provided at the lower portion of the housing fluid 10. When the sensor 14b is reached, the solenoid valve V2 is closed again, the solenoid valve V1 is opened, and fluid is introduced into the housing 10 from the outside by a vacuum, and fluid flows in and evaporates. This step proceeds continuously (S170); The control method of the waste oil purification apparatus comprising a. The method of claim 8, Treatment of the sludge separated from the fluid by the sludge treatment unit 200 (S200), When the sludge temporary storage tank 220 is maintained in a vacuum state by the vacuum means, and the sludge reaches the sludge position sensor 80 of the housing 10, the solenoid valve V4 provided in the sludge feed pipe 210. Opening the sludge and introducing the sludge into the sludge temporary storage tank 220 (S210); When the introduced sludge reaches the sludge upper position sensor 222 of the sludge temporary storage tank 220, the solenoid valve (V4) is closed, the pressure opening and closing valve 221 is opened in the sludge temporary storage tank 220 Maintaining the pressure equal to the external pressure (S220); When the pressure in the sludge temporary storage tank 220 is equal to the external pressure, the solenoid valve V5 of the sludge discharge pipe 230 is opened, and the sludge is transferred into the sludge storage tank 240 through the sludge discharge pipe 230. To be stored (S230); When the sludge of the sludge temporary storage tank 220 reaches the sludge lower position sensor 223, the solenoid valve V5 of the sludge discharge pipe 230 is closed and the sludge position sensor 80 of the housing 10 is closed. When the sludge reaches, the sludge is introduced into the sludge temporary storage tank 220 by opening the solenoid valve V4 of the sludge conveying pipe 210, the sludge is introduced into and discharged from the sludge temporary storage tank 220. Continuously proceeding (S240); The control method of the waste oil purification apparatus comprising a. The method of claim 8, Process of the vapor evaporated from the fluid by the steam processing unit 300 (S300), Sequentially opening the solenoid valves V6, V7, and V8 of the steam transport pipe 310 to introduce steam from the housing 10 into the condenser 320 (S310); Condensing the steam introduced into the condenser (320) into condensate (S320); When the condensate reaches the condensate upper position sensor 321 of the condenser 320, the solenoid valve (V6, V7, V8) of the steam transfer pipe 310 is closed, the solenoid valve (V9) of the condensate discharge pipe 330 Opening, V10, V11 to transfer the condensed water to the condensate storage tank 340 through the condensate discharge pipe 330 to be stored (S330); When the condensate of the condenser 320 reaches the condensate lower position sensor 322, the solenoid valves V9, V10, and V11 of the condensate discharge pipe 330 are closed, and the solenoid valve of the steam transfer pipe 310 is closed. Opening the V6, V7, and V8 to introduce the steam into the condenser 320, and the inflow, condensation and discharge of the steam proceed continuously (S340); Control method of the waste oil purification apparatus, characterized in that comprising a. delete delete delete

Images