Microwave steam heavy oil innocuous treatment device

Abstract

The utility model relates to the technical field of pollutant treatment, specifically a kind of microwave steam heavy oil harmless treatment device, including support frame, support frame is provided with furnace body, and furnace body is provided with heat preservation box inside, and the upper end of furnace body is provided with furnace cover, and the lower end is provided with connecting seat;Connecting seat is provided with first quartz tube, and first quartz tube is set by from below to above and is penetrated through heat preservation box;Furnace body is provided with magnetron that emits microwave into furnace body;Support frame is provided with drive mechanism on the downside of furnace body, and drive mechanism is installed with bottom support, and bottom support is provided with second quartz tube, and second quartz tube top is provided with crucible;Bottom support is provided with the steam inlet pipe that is communicated with second quartz tube, and steam inlet pipe connects steam generator, and first steam hole is arranged on second quartz tube;In the device, through the double action of microwave and steam, not only realize rapid heating, and can effectively reduce heavy oil viscosity, improve heavy oil processing efficiency, avoid secondary pollution problem.

Description

Technical Field

[0001] This utility model relates to the field of pollutant treatment technology, specifically a microwave steam heavy oil harmless treatment device. Background Technology

[0002] With the development of industrial production and daily life, the treatment of heavy oil waste has become an important issue in the field of environmental protection. Heavy oil has a complex composition and contains a large number of harmful substances. If not treated properly, it can easily cause environmental pollution and ecological damage. Traditional heavy oil treatment methods mainly include incineration, chemical decomposition and physical adsorption, but these methods generally have problems such as high energy consumption, high risk of secondary pollution or low treatment efficiency.

[0003] For example, while incineration can effectively decompose heavy oil, it may produce toxic gases such as dioxins and sulfur oxides during high-temperature combustion, and it also consumes a lot of energy. Chemical treatment requires a large amount of reagents, which may introduce new pollutants, and the reaction conditions are harsh. Physical adsorption can only transfer pollutants and cannot achieve complete harmless treatment. In addition, existing technologies are not very effective at treating high-viscosity and highly adhesive heavy oil, and it is difficult to meet environmental protection requirements.

[0004] Therefore, there is an urgent need to develop an integrated device that combines microwave heating and high-temperature steam to achieve efficient, environmentally friendly, and harmless treatment of heavy oil.

[0005] The device of the present invention aims to solve the above-mentioned problems. By using the synergistic effect of microwaves and high-temperature steam, it improves the efficiency of heavy oil treatment, reduces energy consumption, and avoids secondary pollution, providing an innovative solution for the treatment of oily waste. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a microwave steam heavy oil harmless treatment device that improves the decomposition efficiency of heavy oil through the synergistic effect of microwave and high temperature steam.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A microwave steam heavy oil harmless treatment device includes a support frame, a furnace body mounted on the support frame, an insulation box mounted inside the furnace body, a furnace cover at the upper end of the furnace body, and a connecting seat at the lower end; a first quartz tube is mounted on the connecting seat, extending from bottom to top through the insulation box; a magnetron for emitting microwaves into the furnace body is mounted on the furnace body; a drive mechanism is mounted on the support frame at the lower side of the furnace body, a base is mounted on the drive mechanism, a second quartz tube is mounted on the base, and a crucible is mounted on the top of the second quartz tube; the drive mechanism can drive the base to move up and down, sending the crucible and the second quartz tube into the first quartz tube; a steam inlet pipe communicating with the second quartz tube is mounted on the base, the steam inlet pipe is connected to a steam generator, and the second quartz tube has several first steam passage holes.

[0009] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0010] 1. This device forms a stable main structure of the processing furnace through the combination of support frame, furnace body, insulation box, furnace cover and connecting seat, ensuring the stability of the equipment during operation. At the same time, the insulation box can reduce heat loss and improve heating efficiency.

[0011] 2. The magnetron emits microwaves that can directly act on heavy oil, achieving rapid and uniform heating through molecular polarization. Combined with the directional injection of high-temperature steam through the steam passages (first and second steam passages) of the quartz tube, the synergistic effect of microwaves and steam can effectively reduce the viscosity of heavy oil, completely solving the technical bottlenecks of uneven heating, high energy consumption, and secondary pollution in traditional technologies.

[0012] 3. The drive mechanism moves the base, the second quartz tube, and the crucible up and down, facilitating the placement and removal of the material to be processed, making operation convenient and improving the practicality and flexibility of the equipment.

[0013] As a preferred embodiment, a further technical solution of this utility model is:

[0014] Preferably, the first quartz tube is sealed to the furnace body, furnace cover, and connecting seat; a sealing ring is provided on the base; when the drive mechanism drives the base to move to abut against the connecting seat, a sealed connection is formed between the base and the connecting seat; the optimized sealing performance can prevent microwave leakage and steam overflow inside the furnace, ensuring the safety of operators, while avoiding heat loss and maintaining a high-temperature environment inside the furnace; when the sealing ring on the base abuts against the connecting seat, a seal is formed, ensuring that steam will not leak from the bottom after entering the second quartz tube, ensuring full contact between steam and heavy oil, and improving the treatment effect; furthermore, the sealing structure can reduce the escape of harmful gases or water vapor carrying heavy oil, reduce the risk of environmental pollution, and meet the requirements of harmless treatment.

[0015] Preferably, it also includes an air inlet pipe, a vacuum pipe, and an exhaust pipe, which are installed on the furnace cover. The air inlet pipe is connected to an air inlet valve, the vacuum pipe is connected to an air extraction valve, and the exhaust pipe is connected to an exhaust valve. By controlling the valves of the three types of pipes, the atmosphere inside the furnace can be adjusted according to the composition of the heavy oil to adapt to different processing needs and improve the versatility of the equipment.

[0016] Preferably, the driving mechanism is an electric slide table, and a connecting rib plate is fixedly connected to the slide base of the electric slide table, and the bottom support is bolted to the connecting rib plate.

[0017] Preferably, the insulated box has a modular structure, including a bottom plate, side panels, and a lid.

[0018] Preferably, the inner wall of the enclosure is also provided with a microwave absorbing coating: the microwave absorbing coating on the inner wall of the enclosure can absorb microwave energy and convert it into heat energy, supplement the heat in the heat preservation box, avoid energy loss caused by microwave reflection, and at the same time make the temperature distribution in the furnace more uniform and improve the consistency of heavy oil heating.

[0019] Preferably, a thermocouple is installed on the furnace cover, with the temperature measuring end of the thermocouple located inside the first quartz tube and in the insulation box; the thermocouple is used to monitor the temperature near the crucible, providing data support for microwave power adjustment and steam flow control, ensuring that the processing is carried out within the set temperature range, avoiding the impact of excessively high or low temperatures on the heavy oil decomposition effect, and improving the controllability of the processing technology.

[0020] Preferably, the crucible is made of quartz material and has an internal tray for holding materials. The internal tray has several second steam passage holes. The quartz crucible is resistant to high temperature and corrosion, can withstand microwave heating and high-temperature steam environment, and does not chemically react with heavy oil and decomposition products, ensuring the safety of the processing and the purity of the materials. At the same time, the steam passage holes of the internal tray allow steam to penetrate the heavy oil from the bottom up, increasing the contact area between steam and heavy oil, enhancing the viscosity regulation effect of steam on heavy oil, effectively improving the stripping or cracking of heavy oil, and promoting the discharge of decomposition products. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the heavy oil harmless treatment device in the embodiment of this utility model;

[0022] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 yes Figure 1 Enlarged structural diagram at point B;

[0024] Figure 4 This is a schematic diagram of the structure when the base moves to abut against the connecting seat in an embodiment of this utility model;

[0025] Figure 5 yes Figure 4 Enlarged structural diagram at point C;

[0026] Figure 6 yes Figure 4 Enlarged structural diagram at point D;

[0027] Figure 7 This is a schematic diagram of the other side of the heavy oil harmless treatment device in this embodiment of the utility model;

[0028] Figure 8 This is a schematic diagram of the crucible structure in an embodiment of this utility model.

[0029] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Furnace body; 3. Insulation box; 4. First quartz tube; 5. Furnace cover; 6. Electric slide; 601. Slide seat; 7. Base support; 8. Second quartz tube; 801. First steam passage hole; 9. Crucible; 901. Internal support plate; 10. Inlet pipe; 11. Vacuum pipe; 12. Exhaust pipe; 13. Thermocouple; 14. Steam inlet pipe; 15. Connecting seat; 16. Caster; 17. First connecting plate; 18. Second connecting plate; 19. Third connecting plate; 20. Fourth connecting plate; 21. First sealing ring; 22. Second sealing ring; 23. Connecting rib; 24. Connecting sleeve; 25. Lock nut; 26. Sealing ring; 27. Magnetron; 28. Fifth connecting plate; 29. ​​Sixth connecting plate; 30. Third sealing ring. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0031] like Figures 1 to 8As shown, this embodiment provides a microwave steam heavy oil harmless treatment device, including a support frame 1, a furnace body 2 mounted on the support frame 1, an insulation box 3 installed inside the furnace body 2, a furnace cover 5 at the upper end of the furnace body 2, and a connecting seat 15 at the lower end; a first quartz tube 4 is mounted on the connecting seat 15, and the first quartz tube 4 penetrates the insulation box 3 from bottom to top; a magnetron 27 for emitting microwaves into the furnace body 2 is mounted on the furnace body 2; a drive mechanism is mounted on the support frame 1 at the lower side of the furnace body 2, a base 7 is mounted on the drive mechanism, and a second quartz tube 8 is mounted on the base 7. A crucible 9 is provided at the top; the driving mechanism can drive the base 7 to move up and down, and send the crucible 9 and the second quartz tube 8 into the first quartz tube 4; a steam inlet pipe 14 connected to the second quartz tube 8 is provided on the base 7, and the steam inlet pipe 14 is connected to the steam generator. The second quartz tube 8 is provided with a number of first steam passage holes 801; wherein, the magnetron 2724 adopts Samsung OM75P(31)ESGN; the diameter of the first steam passage hole 801 is 5-6mm, and the diameter of the second steam passage hole is 0.5-1.2mm; in this embodiment, a steam valve is also provided on the steam inlet pipe 14.

[0032] The first quartz tube 4 is sealed to the furnace body 2, furnace cover 5, and connecting seat 15. The specific connection structure is as follows: the upper end of the furnace body 2 is provided with a first connecting plate 17, the lower end is provided with a second connecting plate 18, and the lower edge of the furnace cover 5 is provided with a third connecting plate 19. The side cross-section of the first connecting plate 17 is Z-shaped, and the side cross-section of the third connecting plate 19 is inverted L-shaped. The horizontal connecting plate of the third connecting plate 19 is bolted to the upper horizontal connecting plate of the third connecting plate 19. The lower horizontal connecting plate of the third connecting plate 19 is provided with an upper connecting ring groove, and a first sealing ring 21 is provided in the upper connecting ring groove. The vertical connecting plate of the third connecting plate 19 and the side wall of the first quartz tube 4 abut against the first sealing ring 21. The furnace body 2, furnace cover 5, and first quartz tube 4 are sealed together through the first sealing ring 21.

[0033] The connecting seat 15 is provided with a fourth connecting plate 20. The fourth connecting plate 20 includes a first horizontal connecting part, a first vertical connecting part, and a second horizontal connecting part inside the first vertical connecting part. The first quartz tube 4 is set on the second horizontal connecting part. The second connecting plate 18 has a Z-shaped side cross-section. The lower horizontal connecting plate of the second connecting plate 18 is bolted to the first horizontal connecting part. The upper horizontal connecting plate of the second connecting plate 18 is provided with a lower connecting ring groove. A second sealing ring 22 is provided in the lower connecting ring groove. The side wall of the first vertical connecting part and the first quartz tube 4 abut against the second sealing ring 22. The furnace body 2, the connecting seat 15, and the first quartz tube 4 are sealed and connected through the second sealing ring 22.

[0034] In this embodiment, the driving mechanism is an electric slide table 6. A connecting rib plate 23 is fixedly connected to the slide base 601 of the electric slide table 6, and the base support 7 is bolted and fixed to the connecting rib plate 23. For example... Figure 6 The base 7 is provided with a fifth connecting plate, the side cross section of which is Z-shaped. The lower end of the second quartz tube 8 is provided with a sixth connecting plate, the side cross section of which is inverted L-shaped. The horizontal connecting part of the sixth connecting plate is bolted to the upper horizontal connecting plate of the fifth connecting plate. The lower horizontal connecting plate of the fifth connecting plate is provided with a bottom connecting ring groove, and a third sealing ring is provided in the bottom connecting ring groove. The side wall of the second quartz tube 8 and the vertical connecting part of the sixth connecting plate abut against the third sealing ring.

[0035] To ensure that steam does not leak from the bottom after entering the second quartz tube 8, a sealing ring 26 is provided on the base 7; when the drive mechanism drives the base 7 to move to abut against the connecting seat 15, the base 7 and the connecting seat 15 are sealed together; the sealing structure ensures the steam treatment effect while reducing the escape of harmful gases or mixtures of steam and heavy oil, reducing the risk of environmental pollution and meeting the requirements of harmless treatment.

[0036] To achieve controlled furnace atmosphere and adapt to different processing requirements, this device also includes an inlet pipe 10, a vacuum pipe 11, and an exhaust pipe 12. These three pipes are mounted on the furnace cover 5. The inlet pipe 10 is connected to an inlet valve, the vacuum pipe 11 is connected to an extraction valve, and the exhaust pipe 12 is connected to an exhaust valve. The vacuum pump can be a Pfeiffer-HiCube-80-Eco. Flow meters are connected to both the inlet pipe 10 and the exhaust pipe 12. Pressure gauges are installed on the furnace cover 5 to detect the pressure inside the first quartz tube 4 and the second quartz tube 8.

[0037] In this embodiment, the insulated box 3 is a spliced ​​structure, including a bottom plate, a surrounding plate, and a box cover; the inner side wall of the surrounding plate is also provided with a wave-absorbing coating; wherein, the insulated box 3 can be made of alumina-based ceramic fiber composite material, and the wave-absorbing coating can be made of silicon carbide or molybdenum disilicide, etc., thereby enabling rapid heating inside the insulated box 3, reducing heat loss, and improving the efficiency of heavy oil harmless treatment.

[0038] A thermocouple 13 is installed on the furnace cover 5. The temperature measuring end of the thermocouple 13 is located inside the first quartz tube 4 and in the insulation box 3. In this embodiment, the thermocouple 13 is an S-type or K-type thermocouple. The thermocouple 13 is used to monitor the temperature near the crucible 9, providing data support for microwave power adjustment and steam flow control, ensuring that the processing is carried out within the set temperature range. The thermocouple 13, magnetron 27, steam generator, and drive mechanism are all connected to the main controller. The connection structure of the thermocouple 13 is as follows: a connecting sleeve 24 is provided on the furnace cover 5, and the connecting sleeve 24 is provided with external threads. The thermocouple 13 is provided with a lock nut 25 that is adapted to the connecting sleeve 24. A fourth sealing ring is provided in the lock nut 25. The thermocouple 13 is connected to the furnace cover 5 through the lock nut 25 and the connecting sleeve 24. The lock nut 25 and the sealing ring provide double protection for the airtightness of the measuring end, and the standardized interface facilitates probe replacement and maintenance.

[0039] The crucible 9 is made of quartz material and has an internal support plate 901 for holding materials. The internal support plate 901 has several second steam passages; these second steam passages allow steam to penetrate the heavy oil from the bottom upwards, increasing the contact area between the steam and the heavy oil, enhancing the dilution and cracking effect of the steam on the heavy oil, improving the thoroughness of the harmless treatment, and promoting the discharge of decomposition products. The lower end of the crucible 9 has a connector for inserting and fixing with the second quartz tube 8, facilitating the replacement of the crucible 9 and the handling of materials.

[0040] In use, place the material to be processed in crucible 9, and then drive the second quartz tube 8 to rise until it stops when the bottom support 7 abuts against the connecting seat 15. If a vacuum heating environment is required, close the inlet and outlet valves, open the evacuation valve, connect the vacuum tube 11 to the vacuum pump, and use the vacuum pump to evacuate the heating chamber with a pressure gauge. If an inert atmosphere heating environment is required, first evacuate the heating chamber to a basic vacuum (recommended ≤10⁻¹Pa) using the vacuum pump, then perform the first replacement. Slowly open the inlet valve, control the gas flow rate using a flow meter (e.g., 200 sccm), and fill with inert gas to atmospheric pressure (pressure gauge shows 101 kPa). Then fully open the outlet valve to discharge the gas. Repeat the above vacuuming, filling, and evacuation operations at least three times, finally filling with inert gas to the target pressure (atmospheric pressure or slightly positive pressure). If a special reaction gas is required for the harmless treatment, first evacuate to a vacuum level of 10⁻¹Pa using a vacuum pump (evacuation before gas filling results in higher replacement efficiency), then fill with high-purity nitrogen to a slightly positive pressure (50kPa). Repeat the vacuuming and nitrogen filling cycle at least three times. Finally, introduce the reaction gas, precisely controlling the flow rate with a flow meter to establish a dynamic airflow system. This means that when introducing the special reaction gas, the exhaust valve must remain open. After the heating reaction is complete, once the temperature has dropped to the preset temperature, the drive mechanism lowers the second quartz tube 8 to a position easily accessible for personnel.

[0041] The dynamic airflow system is suitable for the following scenarios:

[0042] 1. Reaction gas participation in the process: When special gases (such as oxygen, ozone, hydrogen, etc.) are introduced to react with heavy oil, dynamic airflow is required to ensure gas concentration and reaction efficiency.

[0043] 2. Prevent the accumulation of harmful gases: Discharge the gases produced by decomposition in real time to avoid excessive pressure or explosion risk inside the furnace.

[0044] 3. Inert atmosphere protection: When an inert environment (such as nitrogen) needs to be maintained, dynamic airflow can prevent air from seeping in.

[0045] Taking ozone (O3) intensification of heavy oil oxidation decomposition as an example, the operation steps are as follows: First, evacuate to ≤10⁻¹Pa, and purge with nitrogen three times; turn on the ozone generator (such as Ozonia OZAT® CFS-1A), and introduce ozone through the inlet pipe 10 at a constant flow rate (such as 100 sccm). Adjust the exhaust valve to exhaust through the exhaust pipe 12 at a constant flow rate (such as 100 sccm), forming a dynamic airflow and maintaining a slight positive pressure (such as 50 kPa) inside the furnace. After the reaction is complete, introduce nitrogen through the inlet pipe 10 for purging to remove residual ozone.

[0046] This device offers two treatment methods for materials containing heavy oil:

[0047] The first treatment method is a high-temperature decomposition mode, with an operating temperature of 450-650℃. The working principle is as follows: Heavy oil is heated by microwaves emitted from the magnetron 27. Simultaneously, high-temperature steam generated by the steam generator enters the second quartz tube 8 through the steam inlet pipe 14, and evenly penetrates the heavy oil layer through the first steam passage 801 and the second steam passage of the crucible's internal support plate 901. At this high temperature, large organic molecules in the heavy oil are decomposed into smaller molecules (such as methane and ethylene) and a small amount of residue. The decomposition gases are discharged through the exhaust pipe 12 and purified by a waste gas treatment device (such as an activated carbon adsorption tower or a catalytic combustion device) before being released. This mode is suitable for the complete decomposition of harmful components to achieve completely harmless treatment; among them, the exhaust pipe 12 should be connected to the waste gas treatment device through a flange joint; the activated carbon adsorption device is suitable for adsorbing organic pollutants and some acidic gases, and the JX-AC-2000 activated carbon adsorption tower of Jiejing Environmental Protection can be used; the catalytic combustion device (RCO) is suitable for treating high-concentration organic waste gas and decomposes harmful gases through catalytic oxidation, and the PRT-RCO-3000 catalytic combustion equipment of Pritech Environmental Protection can be used.

[0048] The second treatment method is a steam stripping and recovery mode, with an operating temperature range of 200-350℃. The working principle is as follows: Magnetron 27 heats the heavy oil at a low power, while steam generated by a steam generator (temperature 150-300℃) is introduced through steam inlet pipe 14, reducing the viscosity of the heavy oil and causing it to detach from the adhering surface. The mixture of steam and heavy oil enters a condensation device (such as a tubular condenser) through exhaust pipe 12, where it condenses into a liquid and flows into an oil-water separation device (such as a centrifugal separator) for oil-water separation. The separated heavy oil can be recycled, and the steam is treated and recycled or discharged in compliance with standards. This mode is suitable for the resource recovery of heavy oil, with low energy consumption and no secondary pollution.

[0049] In addition, during use, the internal pressure of the first quartz tube 4, the second quartz tube 8, the furnace cover 5, the bottom support 7, and the connecting seat 15 needs to be monitored by a pressure gauge. When the pressure value exceeds the set threshold (such as 120 kPa), the main controller will automatically shut down the magnetron 27 and the steam generator, and open the exhaust valve for emergency pressure relief.

[0050] Mode selection instructions: The high-temperature decomposition mode is suitable for heavy oil waste with complex composition and high toxicity, and complete decomposition must be ensured; the steam stripping and recovery mode is suitable for heavy oil with high recovery value (such as ship waste oil, oil sludge, etc.), taking into account both environmental protection and economy; the two modes can be flexibly switched by adjusting microwave power, steam temperature and flow rate, and thermocouple 13 monitors the temperature in real time and feeds it back to the main controller to ensure process stability.

[0051] In particular, to facilitate the overall movement of this device, casters 16 are installed at the four corners of the bottom of the support frame 1. In this embodiment, casters 16 can be made of fuma wheels.

[0052] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A microwave steam heavy oil harmless treatment device, characterized in that: Includes a support frame (1), a furnace body (2) is mounted on the support frame (1), an insulation box (3) is installed inside the furnace body (2), a furnace cover (5) is installed at the upper end of the furnace body (2), and a connecting seat (15) is installed at the lower end; a first quartz tube (4) is mounted on the connecting seat (15), and the first quartz tube (4) is installed through the insulation box (3) from bottom to top; a magnetron (27) is mounted on the furnace body (2) to emit microwaves into the furnace body (2); A drive mechanism is provided on the support frame (1) below the furnace body (2). A base (7) is installed on the drive mechanism. A second quartz tube (8) is provided on the base (7). A crucible (9) is provided on the top of the second quartz tube (8). The drive mechanism can drive the base (7) to move up and down, and send the crucible (9) and the second quartz tube (8) into the first quartz tube (4). The base (7) is provided with a steam inlet pipe (14) that communicates with the second quartz tube (8). The steam inlet pipe (14) is connected to a steam generator. The second quartz tube (8) is provided with several first steam passage holes (801).

2. The microwave steam heavy oil harmless treatment device according to claim 1, characterized in that: The first quartz tube (4) is sealed to the furnace body (2), furnace cover (5), and connecting seat (15); a sealing ring (26) is provided on the bottom support (7); when the driving mechanism drives the bottom support (7) to move to abut against the connecting seat (15), the bottom support (7) and the connecting seat (15) are sealed together.

3. The microwave steam heavy oil harmless treatment device according to claim 2, characterized in that: It also includes an air inlet pipe (10), a vacuum pipe (11) and an exhaust pipe (12). The air inlet pipe (10), the vacuum pipe (11) and the exhaust pipe (12) are installed on the furnace cover (5). The air inlet pipe (10) is connected to an air inlet valve, the vacuum pipe (11) is connected to an air extraction valve, and the exhaust pipe (12) is connected to an exhaust valve.

4. The microwave steam heavy oil harmless treatment device according to claim 1, characterized in that: The driving mechanism is an electric slide (6). A connecting rib plate (23) is fixedly connected to the slide base (601) of the electric slide (6), and the bottom support (7) is bolted to the connecting rib plate (23).

5. The microwave steam heavy oil harmless treatment device according to claim 1, characterized in that: The insulated box (3) is a spliced ​​structure, including a bottom plate, a side plate and a lid.

6. The microwave steam heavy oil harmless treatment device according to claim 5, characterized in that: The inner wall of the enclosure is also equipped with a wave-absorbing coating.

7. The microwave steam heavy oil harmless treatment device according to claim 1, characterized in that: A thermocouple (13) is installed on the furnace cover (5). The temperature measuring end of the thermocouple (13) is located inside the first quartz tube (4) and in the insulation box (3).

8. The microwave steam heavy oil harmless treatment device according to claim 1, characterized in that: The crucible (9) is made of quartz material. The crucible (9) has an internal tray (901) for holding materials. The internal tray (901) has several second steam passage holes.

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