Electromagnetic heating waste oil deslagging system

Abstract

The utility model relates to an electromagnetic heating waste oil deslagging system, and belongs to the field of waste oil regeneration, the electromagnetic heating waste oil deslagging system comprises a reaction kettle, a circulating pump, an electric heater, an electric heating groove, a slag oil tank, a regulating valve, a switch valve and an extraction piece, the circulating pump is communicated with the reaction kettle, and the electric heater is communicated with the circulating pump and is communicated with the reaction kettle; the electric heating tank is arranged on the circulating pump in a communicating mode, the residue oil tank is arranged on the electric heating tank in a communicating mode, the adjusting valve is arranged at the communicating position of the circulating pump and the electric heating tank, the switch valve is arranged at the communicating position of the electric heating tank and the residue oil tank, and the extraction part is arranged on the residue oil tank and used for discharging residue oil in the electric heating tank into the residue oil tank. The waste oil regeneration device has the advantages that the probability of coking and blocking of waste oil is reduced, time consumed for equipment maintenance is shortened, the heating temperature of the waste oil is reasonably distributed through the electric heater and the electric heating groove, the heating efficiency is improved, energy consumption is reduced, and the problems of low production efficiency and high recovery cost in the waste oil regeneration process are effectively solved.

Description

Technical Field

[0001] The present application relates to the field of waste oil regeneration, and in particular to an electromagnetic heating waste oil slag removal system. Background Art

[0002] With the development of industrialization, a large amount of waste oil such as waste engine oil, diesel, heavy oil, etc. is generated every year. They are hazardous wastes. If the waste oils are not properly handled, they will greatly pollute the environment. Therefore, waste oil treatment is particularly important.

[0003] At present, the existing waste oil regeneration technology mainly places the pretreated waste oil in a distillation device for distillation. During the distillation process, the waste oil needs to be continuously circulated through a circulation pump and pumped into an electric heater for heating. The waste oil temperature continues to rise, so that the light components in the waste oil are continuously distilled out. After the waste oil is fully utilized, waste residue oil is generated, which needs to be discharged from the distillation equipment.

[0004] However, during the waste oil heating cycle, the temperature continues to rise, and the circulation pump is prone to damage due to long-term high-temperature operation. As the waste oil is produced, the electric heater is prone to coking and clogging, and the circulation pipeline is prone to clogging. This phenomenon often leads to production stoppages for maintenance during the waste oil regeneration operation, affecting the production capacity of the equipment, reducing production efficiency and increasing recycling costs. Utility Model Content

[0005] In order to improve the problems of low production efficiency and high recovery cost in the waste oil regeneration process, the present application provides an electromagnetic heating waste oil slag discharge system.

[0006] The electromagnetic heating waste oil slag discharge system provided in this application adopts the following technical solutions:

[0007] An electromagnetic heating waste oil slag discharge system comprises a reactor, a circulation pump, an electric heater, an electric heating tank, a residual oil tank, a regulating valve, an on-off valve and an extraction member, wherein the circulation pump is connected to the reactor, the electric heater is connected to the circulation pump and is in communication with the reactor, the electric heating tank is connected to the circulation pump, the residual oil tank is connected to the electric heating tank, the regulating valve is provided at the connection between the circulation pump and the electric heating tank, the on-off valve is provided at the connection between the electric heating tank and the residual oil tank, and the extraction member is provided on the residual oil tank and is used to discharge the residual oil in the electric heating tank into the residual oil tank.

[0008] By adopting the above technical solution, the pretreated waste oil is sent to the reactor, the regulating valve and the switch valve are closed first, and the circulating pump pumps the waste oil in the reactor to the electric heater for medium-temperature heating. After the electric heater heats the waste oil in the medium-temperature section, the waste oil flows into the reactor again for circulating heating and distillation. When no material is distilled out of the waste oil in the reactor, the regulating valve is opened, and the circulating pump pumps the waste oil in the reactor that still needs to be heated to the electric heating tank for further high-temperature heating. After the waste oil heated in the high-temperature section in the electric heating tank has no material distilled out, the switch valve is opened, and the residual oil in the electric heating tank is discharged into the residual oil tank through the extraction member for storage. By distilling the waste oil in the medium-temperature section and the high-temperature section respectively, the temperature of the waste oil circulating between the circulating pump, the electric heater and the reactor is reduced, the probability of waste oil coking and clogging is reduced, and the time consumed in equipment maintenance is reduced. In addition, the heating temperature of the waste oil is reasonably distributed through the electric heater and the electric heating tank, thereby improving heating efficiency and reducing energy consumption, effectively improving the problems of low production efficiency and high recovery cost in the waste oil regeneration process.

[0009] Optionally, the extraction member includes a vacuum pump, and the vacuum pump is connected to the residual oil tank.

[0010] By adopting the above technical solution, during continuous production, when the waste oil in the medium temperature section is transferred to the electric heating tank, the vacuum pump is turned on in advance, and the vacuum pump pumps the residual oil tank to a slightly vacuum state. After the liquid level in the electric heating tank exceeds the set value, the switch valve can be opened to discharge the residual oil in the electric heating tank into the residual oil tank in time; during intermittent production, the electric heating tank heats the waste oil in the high temperature section until no material is distilled out, then stops heating, and then turns on the vacuum pump to pump the residual oil tank to a slightly vacuum state, and then opens the switch valve to discharge the residual oil in the electric heating tank into the residual oil tank, thereby improving the applicability to continuous production and intermittent production, and using vacuum to discharge the residual oil, reducing the probability of blockage between the electric heating tank and the residual oil tank.

[0011] Optionally, a vacuum buffer tank is provided between the vacuum pump and the residual oil tank.

[0012] By adopting the above technical solution, the vacuum buffer tank provides a buffer between the vacuum pump and the residue oil tank, thereby improving the stability during micro-vacuum extraction of the residue oil tank and reducing the possibility of residual oil backflowing into the vacuum pump.

[0013] Optionally, the residual oil tank is located directly below the electric heating tank, and the electric heating tank is connected to the residual oil tank through a vertical pipe.

[0014] By adopting the above technical solution, by arranging the residual oil tank directly below the electric heating tank and connecting them with a vertical pipeline, the residual oil in the electric heating tank can enter the residual oil tank under the action of gravity, thereby improving the convenience of discharging the residual oil in the electric heating tank from the residual oil tank and reducing the possibility of clogging of the pipeline between the electric heating tank and the residual oil tank.

[0015] Optionally, a temperature detection instrument is provided on the reactor.

[0016] By adopting the above technical solution, the temperature detection instrument detects the temperature of the waste oil in the reactor, which makes it easier for the staff to control the temperature of the waste oil in the reactor, and further facilitates the control of the timing of pouring the waste oil into the electric heating tank after heating it to above the medium temperature.

[0017] Optionally, the electric heating tank is provided with a liquid level detection instrument.

[0018] By adopting the above technical solution, the liquid level detection instrument detects the liquid level in the electric heating tank, which makes it easier for staff to control the liquid level in the electric heating tank and reduces the possibility of waste oil overflow in the electric heating tank.

[0019] Optionally, a jacket is provided in the residual oil tank.

[0020] By adopting the above technical solution, the staff can quickly cool the residual oil in the residual oil tank by passing the coolant between the jacket and the residual oil tank, thereby improving the cooling efficiency of the residual oil in the residual oil tank.

[0021] Optionally, a production pump is provided on the residual oil tank, and the production pump is connected to the jacket.

[0022] By adopting the above technical solution, after the residual oil in the residual oil tank is cooled, the staff can start the production pump to quickly discharge the residual oil in the residual oil tank.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Reduce the temperature of waste oil circulating between the circulation pump, electric heater and reactor, reduce the probability of waste oil coking and clogging, reduce equipment maintenance time, and reasonably distribute the heating temperature of waste oil through electric heaters and electric heating tanks, improve heating efficiency, reduce energy consumption, and effectively improve the problems of low production efficiency and high recovery cost in the waste oil regeneration process;

[0025] 2. Improve the applicability of continuous production and intermittent production, and use vacuum to discharge the residual oil, reducing the probability of blockage between the electric heating tank and the residual oil tank;

[0026] 3. By introducing coolant between the jacket and the residue oil tank, the residue oil in the residue oil tank can be quickly cooled, thereby improving the cooling efficiency of the residue oil in the residue oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flow chart of the electromagnetic heating waste oil slag discharge system according to an embodiment of the present application.

[0028] Figure numerals: 1. Reactor; 2. Circulation pump; 3. Electric heater; 4. Electric heating tank; 5. Residue oil tank; 6. Regulating valve; 7. Switch valve; 8. Extraction part; 81. Vacuum pump; 9. Vacuum buffer tank; 10. Temperature detection instrument; 11. Liquid level detection instrument; 12. Jacket; 13. Production pump. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 This application is described in further detail.

[0030] The embodiment of the present application discloses an electromagnetic heating waste oil slag discharge system.

[0031] Reference Figure 1 The electromagnetic heating waste oil slag discharge system includes a reactor 1, a circulating pump 2, an electric heater 3, an electric heating tank 4, a residual oil tank 5, a regulating valve 6, a switch valve 7, an extraction component 8, a vacuum buffer tank 9 and a production pump 13. The inlet of the circulating pump 2 is connected to the outlet of the reactor 1 through a pipeline, the outlet of the circulating pump 2 is connected to the inlet of the electric heater 3, the outlet of the electric heater 3 is connected to the inlet of the reactor 1, and the other outlet of the circulating pump 2 is connected to the electric heating tank 4 through a pipeline. The regulating valve 6 is installed on the connecting pipe between the circulating pump 2 and the electric heating tank 4.

[0032] The staff introduces the pretreated waste oil into the reactor 1, first closes the regulating valve 6, and the circulating pump 2 pumps the waste oil in the reactor 1 to the electric heater 3, which heats the waste oil in the medium temperature section. The heating temperature is controlled within 350°C, and the heated waste oil is returned to the reactor 1 for distillation. As the waste oil in the reactor 1 continues to distill, after no material is distilled out, the temperature of the waste oil in the reactor 1 is slowly increased. When the temperature of the waste oil in the reactor 1 rises to above 350°C, the regulating valve 6 is opened, and the circulating pump 2 directly pumps the medium-temperature waste oil in the reactor 1 into the electric heating tank 4, which continues to heat the medium-temperature section waste oil to a high temperature. During the process of continuing to be heated in the electric heating tank 4, the waste oil continues to distill until no material is distilled out of the waste oil in the electric heating tank 4, and the distillation treatment of the waste oil is completed. By distilling the waste oil in the medium temperature section and the high temperature section respectively, the temperature of the waste oil circulating between the circulating pump 2, the electric heater 3 and the reactor 1 is reduced, and the probability of waste oil coking and clogging is reduced.

[0033] Reference Figure 1 A temperature detection instrument 10 is installed on the reactor 1, and the temperature detection instrument 10 is electrically connected to the control panel. In this embodiment, the regulating valve 6 is a solenoid valve, and the control panel electrically connected to the temperature detection instrument 10 is electrically connected to the regulating valve 6.

[0034] The temperature detection instrument 10 detects the temperature of the waste oil in the reactor 1 in real time, which is convenient for the staff to control the temperature of the waste oil in the reactor 1. When the temperature detection instrument 10 detects that the temperature of the waste oil in the reactor 1 exceeds 350°C, it sends an electrical signal to the control panel. The control panel controls the regulating valve 6 to open, and the circulating pump 2 can pump the waste oil in the reactor 1 into the electric heating tank 4, which is convenient for the staff to control the timing of heating the waste oil to above the medium temperature and then pouring it into the electric heating tank 4.

[0035] Reference Figure 1 The residual oil tank 5 is installed directly below the electric heating tank 4 through a vertical pipeline. A switch valve 7 is installed on the pipeline between the residual oil tank 5 and the electric heating tank 4. The extraction component 8 is installed on the residual oil tank 5. The extraction component 8 is used to extract the residual oil in the electric heating tank 4 into the residual oil tank 5. The extraction component 8 includes a vacuum pump 81, which is installed on the residual oil tank 5 through a pipeline.

[0036] When the waste oil is continuously distilled, the circulating pump 2 pumps the waste oil in the medium temperature section into the electric heating tank 4, and the staff turns on the vacuum pump 81 in advance. The vacuum pump 81 pumps out the gas in the residual oil tank 5 and makes the residual oil tank 5 in a slightly vacuum state. After the waste oil in the subsequent electric heating tank 4 accumulates and exceeds the set liquid level, the staff can open the switch valve 7 to discharge the residual oil in the electric heating tank 4 into the residual oil tank 5 in a timely and rapid manner; when the waste oil is distilled in batches, the electric heating tank 4 gradually heats and distills the waste oil in the high temperature section until no material is distilled out, and the electric heating tank 4 stops heating. Then the staff turns on the vacuum pump 81 again to pump the residual oil tank 5 to a slightly vacuum state. state, and then open the switch valve 7 to discharge the oil in the electric heating tank 4 into the residual oil tank 5, thereby increasing the cooling time of the residual oil after distillation in the electric heating tank 4 and reducing the temperature of the residual oil entering the residual oil tank 5, thereby meeting the applicability to continuous production and intermittent production. In addition, the residual oil in the electric heating tank 4 is sucked into the residual oil tank 5 by means of a slight vacuum pumping operation on the residual oil tank 5. In combination with the arrangement of the residual oil tank 5 directly below the electric heating tank 4 and the vertical connecting pipe between the residual oil tank 5 and the electric heating tank 4, the residual oil in the electric heating tank 4 can be discharged to the residual oil tank 5 under the action of gravity and vacuum, thereby effectively reducing the probability of blockage between the electric heating tank 4 and the residual oil tank 5.

[0037] Reference Figure 1 The vacuum buffer tank 9 is installed between the vacuum pump 81 and the residual oil tank 5 through a pipeline. The vacuum buffer tank 9 provides a buffer between the vacuum pump 81 and the residual oil tank 5, so that the vacuum pump 81 is no longer directly connected to the residual oil tank 5, thereby improving the stability of the micro-vacuum extraction of the residual oil tank 5 and reducing the possibility of residual oil backflowing into the vacuum pump 81.

[0038] Reference Figure 1A liquid level detection instrument 11 is installed on the electric heating tank 4. The liquid level detection instrument 11 is used to detect the liquid level of the residual oil in the electric heating tank 4. In this embodiment, the switch valve 7 is a solenoid valve. The liquid level detection instrument 11 is electrically connected to the control panel, and the control panel is electrically connected to the switch valve 7.

[0039] The liquid level detection instrument 11 continuously detects the residual oil level in the electric heating tank 4, which is convenient for the staff to control the liquid level in the electric heating tank 4. When the liquid level detection instrument 11 detects that the liquid level in the electric heating tank 4 is higher than the set value, the liquid level detection instrument 11 box control panel sends an electrical signal, and the control panel controls the switch valve 7 to open, so that the waste oil in the electric heating tank 4 can be discharged immediately, reducing the possibility of waste oil overflow in the electric heating tank 4.

[0040] Reference Figure 1 A jacket 12 is installed in the residual oil tank 5, and the jacket 12 forms an interlayer space in the residual oil tank 5. After the residual oil is discharged from the residual oil tank 5, it is cooled in the jacket 12. During the process, the staff introduces a coolant into the interlayer space formed by the jacket 12 in the residual oil tank 5. The coolant exchanges heat with the residual oil, quickly cools the residual oil, and improves the cooling efficiency of the residual oil in the residual oil tank 5.

[0041] Reference Figure 1 The production pump 13 is connected and installed on the residual oil tank 5, and the production pump 13 is connected to the jacket 12. After the residual oil in the residual oil tank 5 is cooled, the staff turns on the production pump 13, and the production pump 13 can directly extract the residual oil in the residual oil tank 5, making it convenient for the staff to clean and discharge the residual oil in the residual oil tank 5.

[0042] The implementation principle of the electromagnetic heating waste oil deslagging system of the embodiment of the present application is as follows: the staff sends the pre-treated waste oil into the reactor 1, first closes the regulating valve 6 and the switch valve 7, and the circulating pump 2 pumps the waste oil in the reactor 1 to the electric heater 3 for medium temperature heating within 350°C, and then the waste oil flows into the reactor 1 again for distillation. When there is no material distilled out of the waste oil in the reactor 1, the temperature of the waste oil in the reactor 1 rises, and after the temperature detection instrument 10 detects that the temperature exceeds 350°C, the regulating valve 6 is opened, and the circulating pump 2 pumps the waste oil in the reactor 1 to the electric heating tank 4, and the electric heating tank 4 heats the waste oil to a high temperature section above 350°C for distillation, until there is no more waste oil distilled in the high temperature section of the electric heating tank 4. After the material is distilled, the vacuum pump 81 pumps the residual oil tank 5 to a slightly vacuum state, and the switch valve 7 is opened to discharge the residual oil in the electric heating tank 4 into the residual oil tank 5. After the residual oil is cooled in the residual oil tank 5, the production pump 13 discharges the residual oil in the residual oil tank 5. By distilling the waste oil in the medium temperature section and the high temperature section respectively, the temperature of the waste oil circulating between the circulation pump 2, the electric heater 3 and the reactor 1 is reduced, and the gravity and vacuum effects are combined to discharge the residual oil in the electric heating tank 4, thereby reducing the probability of waste oil coking and clogging, reducing the time spent on equipment maintenance, and reasonably allocating the heating temperature to the waste oil through the electric heater 3 and the electric heating tank 4, thereby improving the heating efficiency, reducing energy consumption, and effectively improving the problems of low production efficiency and high recovery cost in the waste oil regeneration process.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An electromagnetic heating waste oil slag discharge system, characterized by: The invention comprises a reactor (1), a circulation pump (2), an electric heater (3), an electric heating tank (4), a residual oil tank (5), a regulating valve (6), a switch valve (7) and an extraction member (8), wherein the circulation pump (2) is connected and arranged on the reactor (1), the electric heater (3) is connected and arranged on the circulation pump (2) and is in communication with the reactor (1), the electric heating tank (4) is connected and arranged on the circulation pump (2), the residual oil tank (5) is connected and arranged on the electric heating tank (4), the regulating valve (6) is arranged at the connection point between the circulation pump (2) and the electric heating tank (4), the switch valve (7) is arranged at the connection point between the electric heating tank (4) and the residual oil tank (5), and the extraction member (8) is arranged on the residual oil tank (5) and is used to discharge the residual oil in the electric heating tank (4) into the residual oil tank (5).

2. The electromagnetic heating waste oil slag removal system according to claim 1, characterized in that: The extraction member (8) comprises a vacuum pump (81), and the vacuum pump (81) is connected and arranged on the residual oil tank (5).

3. The electromagnetic heating waste oil slag removal system according to claim 2, characterized in that: A vacuum buffer tank (9) is provided between the vacuum pump (81) and the residual oil tank (5).

4. The electromagnetic heating waste oil slag removal system according to claim 1, characterized in that: The residual oil tank (5) is located directly below the electric heating tank (4), and the electric heating tank (4) and the residual oil tank (5) are connected via a vertical pipeline.

5. The electromagnetic heating waste oil slag removal system according to claim 1, characterized in that: The reactor (1) is provided with a temperature detection instrument (10).

6. The electromagnetic heating waste oil slag removal system according to claim 1, characterized in that: The electric heating tank (4) is provided with a liquid level detection instrument (11).

7. The electromagnetic heating waste oil slag removal system according to claim 1, characterized in that: A jacket (12) is provided in the residual oil tank (5).

8. The electromagnetic heating waste oil slag removal system according to claim 7, characterized in that: The residual oil tank (5) is connected to a production pump (13), and the production pump (13) is connected to the jacket (12).

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