Waste oil cracking rectification separation equipment and separation method

Abstract

The invention belongs to the technical field of waste oil regeneration, and provides waste oil cracking rectification separation equipment and a separation method.The separation equipment comprises a combustion chamber, a catalysis plate and a cooling chamber, the combustion chamber, the catalysis plate and the cooling chamber are sequentially connected, and an electromagnetic combustion engine is arranged in the combustion chamber; a plurality of groups of catalytic holes are formed in the surface of one side of the catalytic plate, the plurality of groups of catalytic holes are distributed on two parallel lines and a semicircular line connected with the end parts of the two groups of parallel lines, the plurality of groups of catalytic holes are distributed at equal intervals, and two groups of vent holes communicated with the plurality of groups of catalytic holes are formed in the catalytic plate; in order to solve the technical problem that in the prior art, sintering and inactivation of a catalyst are easily caused in a high-temperature environment for a long time, placing cylinders are driven to circularly move through a telescopic piece and a rotary power piece, so that the catalyst in different placing cylinders can circularly make contact with oil steam at different temperatures; the catalyst can be widely applied to the working scene of catalysis at high temperature.

Description

Technical Field

[0001] The invention belongs to the technical field of waste oil regeneration, and in particular relates to waste oil cracking, distillation and separation equipment and a separation method. Background Art

[0002] Waste oil refers to oil that has been used for a period of time and can no longer be used due to the infiltration of pollutants and impurities and the oxidation and deterioration of some components. The replaced oil is collectively referred to as waste oil.

[0003] According to national regulations, waste oil is hazardous waste. Purification and regeneration of waste oil can approach or reach the standard of new oil, and waste oil can also be regenerated into fuel oil or base oil. At present, waste oil regeneration requires multiple processes such as cracking, distillation catalysis, and cooling. In the process of distillation catalysis, a catalyst is needed to decolorize the oil vapor. When the existing device is in use, the catalyst does not need to be replaced for a long time, and the catalyst is mostly in a fixed state after being placed. However, the oil vapor is in a high temperature state after being generated, and the fixed catalyst is in contact with the high-temperature oil vapor for a long time, which will cause problems such as catalyst sintering and deactivation, thereby reducing the effect of the catalyst. Summary of the invention

[0004] The purpose of the present invention is to provide a waste oil cracking and distillation separation device and a separation method, aiming to solve the technical problem that the catalyst is easily sintered and deactivated in a long-term high temperature environment in the prior art.

[0005] The present invention is implemented as follows: a waste oil cracking and distillation separation device comprises a combustion chamber, a catalytic plate and a cooling chamber, wherein the combustion chamber, the catalytic plate and the cooling chamber are connected in sequence and an electromagnetic burner is arranged in the combustion chamber;

[0006] A plurality of catalytic holes are provided on one side of the catalytic plate, the plurality of catalytic holes are distributed on two parallel lines and on a semicircular line connecting the ends of the two parallel lines, the plurality of catalytic holes are arranged at equal intervals, and two groups of vent holes are provided on the catalytic plate to connect the plurality of catalytic holes;

[0007] The catalytic plate is provided with a support plate that moves in a direction perpendicular to the catalytic plate, and a plurality of groups of movable plates are provided on the support plate, and the number and positions of the movable plates correspond to the catalytic holes. A placement tube is fixedly installed on the surface of the movable plate close to the catalytic plate, and the movable plate is provided with a rotating power part that drives the plurality of groups of movable plates to move simultaneously. When the placement tube enters the catalytic hole, the outer side surface of the placement tube slides in contact with the inner wall of the catalytic hole and the movable plate contacts the catalytic plate. After the placement tube enters the catalytic hole, a filter hole is opened in the area corresponding to the vent hole on its side wall.

[0008] Further technical solution: the two groups of ventilation holes respectively penetrate the catalytic holes on two parallel lines, and the two ends of the two groups of ventilation holes are respectively connected to the combustion chamber and the cooling chamber.

[0009] Further technical solution: a groove is provided in the middle of the catalytic plate, a telescopic member is fixedly installed in the groove, and an output end of the telescopic member is fixedly connected to the support plate.

[0010] Further technical solution: the edge trajectory of the support plate shape is similar to the trajectory of the catalytic hole distribution, and the moving plate moves along the edge of the support plate.

[0011] Further technical solution: a synchronous belt is rotatably installed on the support plate, the rotating power member drives the synchronous belt to rotate, and the synchronous belt is fixedly connected to the movable plate through multiple sets of connecting plates.

[0012] Further technical solution: the end of the placement tube away from the movable plate is an open structure, and a mounting plate is threadedly installed at the end of the placement tube away from the movable plate, and the mounting plate is provided with baffles and pressure plates located inside and outside the placement tube.

[0013] Further technical solution: a telescopic rod is fixedly installed on the mounting plate, the telescopic rod is coaxially arranged with the placing tube and the telescopic rod is fixedly connected with the pressure plate, the pressure plate is fixedly connected with the baffle through a support rod, the support rod is parallel to the telescopic rod, an elastic part is fixedly installed on the mounting plate, and the end of the elastic part away from the mounting plate is fixedly connected with the pressure plate.

[0014] A further technical solution is that the side surface of the baffle plate is in sliding contact with the inner wall of the placement tube, and when the baffle plate is located at the deepest part of the placement tube, it does not reach the area where the filter holes are located.

[0015] Further technical solution: a partition is rotatably installed on the surface of the baffle plate close to the movable plate, and when the baffle plate is located at the deepest part of the placement cylinder, there is a gap between the partition plate and the movable plate, and two groups of filter plates distributed on both sides of the partition plate are fixedly installed on the movable plate, and the filter plates are in sliding contact with the partition plates. When the baffle plate is located at the shallowest part of the placement cylinder, the filter plates are in sliding contact with the partition plates.

[0016] The present invention also provides a waste oil cracking and distillation separation method, which is applied to the waste oil cracking and distillation separation equipment described above, and comprises the following steps:

[0017] Step S1: transporting the waste oil raw material into the combustion chamber through a feed pipe, and heating and cracking the waste oil raw material through an electromagnetic burner;

[0018] Step S2: the generated oil vapor enters the two groups of vent holes through the pipeline, and then enters the placement cylinder. When the oil vapor moves in the placement cylinder, it is decolorized by the catalyst particles;

[0019] Step S3: After the set time is used, the connection between the vent hole and the combustion chamber and the cooling chamber is closed, so that the placement tube moves a set distance driven by the rotating power member after leaving the catalytic hole, and then enters the catalytic hole again;

[0020] Step S4: Open the hole to connect the combustion chamber and the cooling chamber, continue the decolorization process, and repeat the above steps after the set time to continue changing the position of the placement tube.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The placement cylinder is driven to move cyclically by the telescopic parts and the rotating power parts. Since the oil vapor temperature contacted by the placement cylinder in different catalytic holes is different, the catalysts in different placement cylinders can be cyclically contacted with oil vapors of different temperatures, avoiding the problems of catalyst sintering and deactivation caused by the continuous contact of fixed catalysts with high-temperature oil vapor, improving the uniformity of the contact between the catalyst and the oil vapor, ensuring the catalytic effect of the catalyst, and improving the quality of the regenerated oil.

[0023] 2. When the placement tube leaves the catalytic hole, the baffle moves away from the movable plate, the space between the baffle and the movable plate increases, the compacted catalyst particles become loose and move in the enlarged area, and when the placement tube enters the catalytic hole subsequently, the baffle will push the catalyst particles to move and compact the catalyst again, so that the catalyst particles in the placement tube can be redistributed each time the placement tube changes the corresponding catalytic hole, avoiding the catalyst particles from remaining in a fixed position for a long time, allowing the catalyst particles to be evenly contacted with the oil vapor, avoiding the problems of catalyst sintering and deactivation caused by the fixed catalyst particles being in contact with high-temperature oil vapor for a long time, ensuring the normal use of the catalyst, further improving the uniformity of the contact between the catalyst and the oil vapor, and improving the catalytic effect.

[0024] 3. Since the placement cylinder can only circulate air through the filter holes on both sides, the oil vapor will move along a U-shaped track inside the placement cylinder after entering the placement cylinder. The setting of the partition prevents the oil vapor from directly leaving the placement cylinder from the filter holes on the other side, thereby increasing the length of the track for the oil vapor to move inside the placement cylinder. At the same time, the moving track of the oil vapor in the placement cylinder is filled with tightly compacted catalysts, which increases the contact time between the oil vapor and the catalyst, allowing the oil vapor to fully contact the catalyst, further improving the decolorization effect of the oil vapor and improving the quality of the regenerated oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the support plate in the present invention.

[0027] Figure 3 It is a schematic diagram of the structure of the catalyst plate in the present invention.

[0028] Figure 4 It is a schematic diagram of the structure of placing the cylinder in the present invention.

[0029] Figure 5 It is a schematic diagram of the internal structure of the placement tube in the present invention.

[0030] Figure 6 for Figure 5 A magnified schematic diagram of the A1 region in the middle.

[0031] In the attached figure: 1. combustion chamber; 2. electromagnetic burner; 3. catalytic plate; 4. cooling chamber; 5. groove; 6. catalytic hole; 7. vent; 8. telescopic member; 9. support plate; 10. synchronous belt; 11. rotating power member; 12. moving plate; 13. connecting plate; 14. placing cylinder; 15. pressing plate; 16. telescopic rod; 17. mounting plate; 18. elastic member; 19. support rod; 20. baffle; 21. partition; 22. filter plate; 23. filter hole. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0034] like Figure 1-Figure 4 As shown, a waste oil cracking and distillation separation device provided by the present invention comprises a combustion chamber 1, a catalytic plate 3 and a cooling chamber 4, wherein the combustion chamber 1, the catalytic plate 3 and the cooling chamber 4 are connected in sequence and an electromagnetic burner 2 is arranged in the combustion chamber 1;

[0035] A plurality of catalytic holes 6 are provided on one side of the catalyst plate 3. The plurality of catalytic holes 6 are distributed on two parallel lines and on a semicircular line connecting the ends of the two parallel lines. The plurality of catalytic holes 6 are arranged at equal intervals. Two groups of vent holes 7 are provided on the catalyst plate 3 to connect the plurality of catalytic holes 6. The two groups of vent holes 7 respectively penetrate the catalytic holes 6 on the two parallel lines, and the two ends of the two groups of vent holes 7 are respectively connected to the combustion chamber 1 and the cooling chamber 4.

[0036] A support plate 9 is provided on the catalytic plate 3 and moves in a direction perpendicular to the catalytic plate 3. A groove 5 is provided in the middle of the catalytic plate 3. A telescopic member 8 is fixedly installed in the groove 5. The output end of the telescopic member 8 is fixedly connected to the support plate 9. A plurality of groups of movable plates 12 are provided on the support plate 9. The number and position of the movable plates 12 correspond to the catalytic holes 6. The edge trajectory of the shape of the support plate 9 is similar to the trajectory of the distribution of the catalytic holes 6. The movable plate 12 moves along the edge of the support plate 9. A placement tube 14 is fixedly installed on the surface of the movable plate 12 close to the catalytic plate 3. The movable plate 12 is provided with a rotating power member 11 that drives the plurality of groups of movable plates 12 to move simultaneously. When the placement tube 14 enters the catalytic hole 6, the outer side surface of the placement tube 14 slides in contact with the inner wall of the catalytic hole 6 and the movable plate 12 contacts the catalytic plate 3. After the placement tube 14 enters the catalytic hole 6, a filter hole 23 is provided in the area corresponding to the vent hole 7 on its side wall.

[0037] In actual application of this embodiment, under normal working conditions, the placement tube 14 is located in the corresponding catalytic hole 6, and the placement tube 14 is filled with catalyst particles. At the same time, the distribution area of ​​the filter holes 23 corresponds to the vent holes 7. The waste oil raw material is transported to the combustion chamber 1 through the feed pipe, and the waste oil raw material is heated and cracked by the electromagnetic burner 2. The generated oil vapor enters the two groups of vent holes 7 through the pipeline, and the oil vapor enters the placement tube 14 along the vent holes 7 and a group of filter holes 23 on the side wall of the placement tube 14. When the oil vapor moves in the placement tube 14, it is catalytically decolorized by the catalyst particles. After that, the oil vapor enters the subsequent vent holes 7 and the placement tube 14 from another group of filter holes 23 on the group of placement tubes 14, thereby realizing the reciprocating cycle catalytic decolorization of the oil vapor;

[0038] After the set time is used, the connection between the vent hole 7 and the combustion chamber 1 and the cooling chamber 4 is closed. At this time, the telescopic member 8 drives the support plate 9 to move away from the catalytic plate 3 so that the placement tube 14 leaves the catalytic hole 6, and then the rotating power member 11 drives the multiple groups of movable plates 12 to move the set distance at the same time, so that the placement tube 14 is re-aligned with the adjacent catalytic hole 6. After that, the telescopic member 8 contracts to make the placement tube 14 enter the catalytic hole 6 again, and the connection between the vent hole 7 and the combustion chamber 1 and the cooling chamber 4 is opened to continue the decolorization and purification of the oil vapor. Repeating the above steps can make the placement tube 14 perform catalytic operations in different catalytic holes 6. The oil vapor temperature contacted by the placement tube 14 in different catalytic holes 6 is different, so that the catalyst in different placement tubes 14 can cyclically contact with oil vapor at different temperatures, avoiding the problems of catalyst sintering and deactivation caused by the fixed catalyst continuously contacting with high-temperature oil vapor, improving the uniformity of the contact between the catalyst and the oil vapor, ensuring the catalytic effect of the catalyst, and improving the quality of the regenerated oil.

[0039] In an example of this embodiment, the telescopic member 8 is an electric telescopic rod, and of course it can also be other components that can actively change the length, such as a hydraulic cylinder. The electric telescopic rod drives the support plate 9 to move, thereby completing the position adjustment of the placement tube 14.

[0040] like Figure 2 As shown, a waste oil cracking, distillation and separation device provided by the present invention is provided. A synchronous belt 10 is rotatably installed on the support plate 9. The rotating power member 11 drives the synchronous belt 10 to rotate. The synchronous belt 10 is fixedly connected to the moving plate 12 through multiple groups of connecting plates 13.

[0041] In actual application of this embodiment, the rotating power part 11 drives the synchronous belt 10 to rotate, and the synchronous belt 10 drives multiple groups of movable plates 12 to move the same distance at the same time through multiple groups of connecting plates 13, so that the movable plate 12 drives the placement tube 14 to replace the corresponding catalytic holes 6, so that the catalyst particles in the placement tube 14 can move to different positions to contact the oil vapor.

[0042] In an example of the present invention, the rotating power component 11 is a motor, and of course it can also be other components capable of outputting rotating power, such as a hydraulic motor, etc. The motor drives the synchronous belt 10 to rotate, thereby driving the moving plate 12 to move.

[0043] like Figure 1-Figure 6 As shown, a waste oil cracking, distillation and separation device provided by the present invention is provided, wherein the end of the placement cylinder 14 away from the movable plate 12 is an open structure, and a mounting plate 17 is threadedly installed on the end of the placement cylinder 14 away from the movable plate 12, and a baffle 20 and a pressure plate 15 located inside and outside the placement cylinder 14 are provided on the mounting plate 17.

[0044] Specifically, a telescopic rod 16 is fixedly installed on the mounting plate 17. The telescopic rod 16 is coaxially arranged with the placement tube 14 and is fixedly connected to the pressure plate 15. The pressure plate 15 is fixedly connected to the baffle 20 through a support rod 19. The support rod 19 is parallel to the telescopic rod 16. An elastic member 18 is fixedly installed on the mounting plate 17. One end of the elastic member 18 away from the mounting plate 17 is fixedly connected to the pressure plate 15.

[0045] Specifically, the side surface of the baffle 20 is in sliding contact with the inner wall of the placement tube 14 , and when the baffle 20 is located at the deepest part in the placement tube 14 , it does not reach the area where the filter holes 23 are located.

[0046] Specifically, a partition plate 21 is rotatably installed on the surface of the baffle 20 close to the movable plate 12. When the baffle 20 is located at the deepest part of the placement cylinder 14, there is a gap between the partition plate 21 and the movable plate 12. Two groups of filter plates 22 distributed on both sides of the partition plate 21 are fixedly installed on the movable plate 12. The filter plates 22 are in sliding contact with the partition plate 21. When the baffle 20 is located at the shallowest part of the placement cylinder 14, the filter plates 22 are in sliding contact with the partition plate 21.

[0047] In actual application of this embodiment, when the placement tube 14 enters the catalytic hole 6, the pressing plate 15 first contacts the bottom of the catalytic hole 6, and as the placement tube 14 moves, the elastic member 18 will be compressed and the baffle 20 will move into the placement tube 14. When the baffle 20 moves, it will push the catalyst particles on both sides of the partition 21 in the placement tube 14 to move. When the placement tube 14 contacts the pressing plate 15, the moving plate 12 and the surface of the catalytic plate 3 are in conflict, and the baffle 20 will squeeze the catalyst particles on both sides of the partition 21 so that the catalyst particles can be in close contact with each other, thereby filling the placement tube 14;

[0048] The subsequent oil vapor enters the placement cylinder 14 through the air vent 7 and the filter hole 23 on one side. Since the placement cylinder 14 can only circulate air through the filter holes 23 on both sides at this time, the oil vapor will move along a U-shaped trajectory in the placement cylinder 14 after entering the placement cylinder 14. The oil vapor passes through the filter plate 22 and the partition 21. Then, the oil vapor leaves the group of placement cylinders 14 through another group of filter holes 23, and then enters the next group of placement cylinders 14 through the air vent 7 and the filter holes 23 again for catalytic decolorization. The partition 21 is set so that the oil vapor cannot directly leave the placement cylinder 14 from the filter holes 23 on the other side, thereby increasing the length of the trajectory of the oil vapor moving in the placement cylinder 14. At the same time, the moving trajectory of the oil vapor in the placement cylinder 14 is filled with tightly compacted catalysts, which increases the contact time between the oil vapor and the catalyst, so that the oil vapor can fully contact with the catalyst, further improving the decolorization effect of the oil vapor and improving the quality of the regenerated oil.

[0049] After the set time is used, the connection between the vent hole 7 and the combustion chamber 1 and the cooling chamber 4 is closed, and then the placement tube 14 is moved away from the catalytic hole 6. When leaving, the pressing plate 15 first maintains contact with the bottom surface of the catalytic hole 6. When the elastic member 18 is no longer compressed, the pressing plate 15 leaves the catalytic hole 6. During the contact between the pressing plate 15 and the bottom surface of the catalytic hole 6, the baffle 20 moves away from the movable plate 12, and the space between the baffle 20 and the movable plate 12 increases. The compacted catalyst particles become loose and move in the enlarged area. After the catalytic hole 6 corresponding to the placement tube 14 is replaced, the placement tube 14 is again allowed to enter the catalytic hole 6. At this time, the baffle 20 will push the catalyst particles to move and compact the catalyst again, so that the catalyst particles in the placement tube 14 can be redistributed every time the corresponding catalytic hole 6 is replaced, avoiding the catalyst particles from remaining in a fixed position for a long time, allowing the catalyst particles to be evenly in contact with the oil vapor, avoiding the problems of catalyst sintering and deactivation caused by the fixed catalyst particles being in contact with high-temperature oil vapor for a long time, ensuring the normal use of the catalyst, and further improving the catalytic effect of the catalyst.

[0050] like Figure 1-Figure 6 As shown, the present invention provides a waste oil cracking and distillation separation method, which is applied to the waste oil cracking and distillation separation equipment described above, and comprises the following steps:

[0051] Step S1: transporting the waste oil raw material into the combustion chamber 1 through the feed pipe, and heating and cracking the waste oil raw material through the electromagnetic burner 2;

[0052] Step S2: the generated oil vapor enters the two groups of vent holes 7 through the pipeline, and then enters the placement tube 14. When the oil vapor moves in the placement tube 14, it is decolorized by the catalyst particles;

[0053] Step S3: After the set time is used, the connection between the vent hole 7 and the combustion chamber 1 and the cooling chamber 4 is closed, so that the placement cylinder 14 moves a set distance after leaving the catalytic hole 6 under the drive of the rotating power member 11, and then enters the catalytic hole 6 again;

[0054] Step S4: Open the connection between the hole 7 and the combustion chamber 1 and the cooling chamber 4, and continue the decolorization process. After the set time, repeat the above steps to continue changing the position of the placement tube 14.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0056] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waste oil cracking, distillation and separation device, comprising a combustion chamber (1), a catalytic plate (3) and a cooling chamber (4), characterized in that: The combustion chamber (1), the catalytic plate (3) and the cooling chamber (4) are connected in sequence and an electromagnetic burner (2) is arranged in the combustion chamber (1); A plurality of groups of catalytic holes (6) are provided on one side surface of the catalytic plate (3), the plurality of groups of catalytic holes (6) are distributed on two parallel lines and on a semicircular line connecting the ends of the two groups of parallel lines, the plurality of groups of catalytic holes (6) are arranged at equal intervals, and two groups of vent holes (7) are provided on the catalytic plate (3) to connect the plurality of groups of catalytic holes (6); The catalytic plate (3) is provided with a support plate (9) that moves in a direction perpendicular to the catalytic plate (3), and a plurality of groups of movable plates (12) are provided on the support plate (9), the number and position of the movable plates (12) both correspond to the catalytic holes (6), a placement tube (14) is fixedly mounted on the surface of the movable plate (12) close to the catalytic plate (3), and the movable plate (12) is provided with a rotating power member (11) that drives the plurality of groups of movable plates (12) to move simultaneously, and when the placement tube (14) enters the catalytic hole (6), the outer side surface of the placement tube (14) slides in contact with the inner wall of the catalytic hole (6) and the movable plate (12) contacts the catalytic plate (3), and after the placement tube (14) enters the catalytic hole (6), a filter hole (23) is opened in an area corresponding to the vent hole (7) on its side wall.

2. A waste oil cracking, distillation and separation device according to claim 1, characterized in that: The two groups of ventilation holes (7) respectively penetrate the catalytic holes (6) on two parallel lines, and the two ends of the two groups of ventilation holes (7) are respectively connected to the combustion chamber (1) and the cooling chamber (4).

3. The waste oil cracking, distillation and separation equipment according to claim 1, characterized in that: A groove (5) is provided in the middle of the catalytic plate (3), a telescopic member (8) is fixedly installed in the groove (5), and the output end of the telescopic member (8) is fixedly connected to the support plate (9).

4. A waste oil cracking, distillation and separation device according to claim 3, characterized in that: The edge trajectory of the support plate (9) is similar to the trajectory of the distribution of the catalytic holes (6), and the moving plate (12) moves along the edge of the support plate (9).

5. The waste oil cracking, distillation and separation equipment according to claim 1, characterized in that: A synchronous belt (10) is rotatably mounted on the support plate (9), a rotating power member (11) drives the synchronous belt (10) to rotate, and the synchronous belt (10) is fixedly connected to the movable plate (12) via a plurality of connection plates (13).

6. The waste oil cracking, distillation and separation equipment according to claim 1, characterized in that: The end of the placement tube (14) away from the movable plate (12) is an open structure, and a mounting plate (17) is threadedly mounted on the end of the placement tube (14) away from the movable plate (12), and the mounting plate (17) is provided with a baffle (20) and a pressure plate (15) located inside and outside the placement tube (14).

7. The waste oil cracking, distillation and separation equipment according to claim 6, characterized in that: A telescopic rod (16) is fixedly mounted on the mounting plate (17), the telescopic rod (16) is coaxially arranged with the placement tube (14) and the telescopic rod (16) is fixedly connected to the pressing plate (15), the pressing plate (15) is fixedly connected to the baffle (20) via a support rod (19), the support rod (19) is parallel to the telescopic rod (16), an elastic member (18) is fixedly mounted on the mounting plate (17), and one end of the elastic member (18) away from the mounting plate (17) is fixedly connected to the pressing plate (15).

8. The waste oil cracking, distillation and separation equipment according to claim 7, characterized in that: The side surface of the baffle (20) is in sliding contact with the inner wall of the placement tube (14), and when the baffle (20) is located at the deepest point in the placement tube (14), it does not reach the area where the filter hole (23) is located.

9. The waste oil cracking, distillation and separation equipment according to claim 8, characterized in that: A partition plate (21) is rotatably mounted on the surface of the baffle plate (20) close to the movable plate (12); when the baffle plate (20) is located at the deepest position in the placement cylinder (14), there is a gap between the partition plate (21) and the movable plate (12); two groups of filter plates (22) are fixedly mounted on the movable plate (12) and are distributed on both sides of the partition plate (21); the filter plates (22) are in sliding contact with the partition plate (21); and when the baffle plate (20) is located at the shallowest position in the placement cylinder (14), the filter plates (22) are in sliding contact with the partition plate (21).

10. A method for separating waste oil by cracking, distillation and separation, characterized in that: It is applied to a waste oil cracking, distillation and separation device as described in any one of claims 1 to 9, which comprises the following steps: Step S1: transporting the waste oil raw material into a combustion chamber (1) through a feed pipe, and heating and cracking the waste oil raw material through an electromagnetic burner (2); Step S2: the generated oil vapor enters the two groups of vent holes (7) through the pipeline, and then enters the placement cylinder (14). When the oil vapor moves in the placement cylinder (14), it is decolorized by the catalyst particles; Step S3: After the set time has passed, the connection between the vent hole (7) and the combustion chamber (1) and the cooling chamber (4) is closed, so that the placement tube (14) leaves the catalytic hole (6) and moves a set distance driven by the rotating power member (11), and then re-enters the catalytic hole (6); Step S4: Open the hole (7) to connect the combustion chamber (1) and the cooling chamber (4), and continue the decolorization process. After a set time, repeat the above steps to continue changing the position of the placement tube (14).

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