Film evaporator for waste mineral oil

Abstract

The invention provides a film evaporator for waste mineral oil, and relates to the technical field of film evaporations.The film evaporator comprises an evaporator body, a motor is fixedly connected to the top of the evaporator body, a scraper is fixedly connected to the output end of the motor, and a feeding pipe is arranged on one side of the evaporator body; a heating medium inlet is formed in one side of the evaporator body, a heating medium outlet is formed in one side of the evaporator body, a discharging pipe is arranged at the bottom of the evaporator body, and valves are arranged on the surfaces of the feeding pipe, the discharging pipe, the heating medium inlet and the heating medium outlet. A limiting device is arranged on the surface of the evaporator body, a supporting device is arranged at the bottom of the evaporator body, and when the limiting device is used, a circular ring is manually arranged at the bottom of the evaporator body in a sleeving mode, so that a conical sleeve is arranged on the surface of the bottom of the evaporator body in a sleeving mode; in this way, the evaporator body is limited to the top of the bottom plate through the conical sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of thin film evaporators, in particular to a thin film evaporator for waste mineral oil. Background Art

[0002] A thin film evaporator is a device used for heat transfer and evaporation by allowing the material liquid to flow in a film-like manner along the wall of a heating tube. When using a thin film evaporator, the treated waste mineral oil is passed into the interior of the thin film evaporator, and the interior of the evaporator is heated by passing a heating medium, and the scraper is driven to rotate by a motor. The thin film evaporator forms a thin film of liquid under reduced pressure, thereby accelerating the evaporation process and evaporating the water inside the waste mineral oil, thereby recycling and utilizing the waste resources inside the waste mineral oil.

[0003] The inventors have found in their daily work that the thin film evaporator still has at least the following problems: when using the thin film evaporator, the treated waste mineral oil is passed into the interior of the thin film evaporator, the interior of the evaporator is heated by passing a heating medium, and the scraper is driven to rotate by a motor. The thin film evaporator forms a thin film of liquid under reduced pressure, thereby accelerating the evaporation process, which can recycle and utilize the waste resources inside the waste mineral oil. However, in actual use, the thin film evaporator may vibrate when working, which may cause the connection of the evaporator body of the thin film evaporator to break, thereby affecting the use of the thin film evaporator to a certain extent. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a thin film evaporator for waste mineral oil.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a thin film evaporator for waste mineral oil, comprising an evaporator body, a motor is fixedly connected to the top of the evaporator body, a scraper is fixedly connected to the output end of the motor, a feed pipe is arranged on one side of the evaporator body, a heating medium inlet is arranged on one side of the evaporator body, a heating medium outlet is arranged on one side of the evaporator body, a discharge pipe is arranged on the bottom of the evaporator body, valves are arranged on the surfaces of the feed pipe, the discharge pipe, the heating medium inlet and the heating medium outlet, a limiting device is arranged on the surface of the evaporator body, a supporting device is arranged at the bottom of the evaporator body, a bottom plate is arranged at the bottom of the supporting device, the limiting device comprises a circular ring, the circular ring is arranged on the top of the bottom plate, a conical sleeve is fixedly connected to the inner wall of the circular ring, the conical sleeve sliding sleeve is arranged on the bottom of the evaporator body, and a limiting frame is fixedly connected to the surface of the evaporator body.

[0006] The effect achieved by the above components is: when using the limit device, the ring sleeve is manually set on the bottom of the evaporator body, so that the conical sleeve is set on the surface of the bottom of the evaporator body, so that the conical sleeve limits the evaporator body to the top of the bottom plate.

[0007] Preferably, the top of the circular ring is evenly provided with connecting grooves, the inner wall of the connecting groove is slidably connected to a connecting rod, the inner wall of the connecting groove is rotatably penetrated by a first threaded rod, the first threaded rod is threadedly penetrated and inserted on one side of the connecting rod, the end of the connecting rod away from the connecting groove is arranged at the top of the limit frame, the top of the connecting rod is slidably penetrated by an L-shaped plate, one end of the L-shaped plate is arranged inside the limit frame, the bottom of the L-shaped plate is fixedly connected to a first damping rod, the bottom of the first damping rod is fixedly connected to the top of the connecting rod, the surface of the first damping rod is sleeved with a first spring, one end of the first spring is fixedly connected to the top of the connecting rod, and the end of the first spring close to the first damping rod is fixedly connected to the bottom of the L-shaped plate.

[0008] The effects achieved by the above components are: manually controlling the first threaded rod to rotate inside the connecting groove, thereby driving the connecting rod threadedly sleeved on the surface of the first threaded rod to approach the evaporator body, and then controlling the L-shaped plate to pass through the top of the connecting rod and insert into the inside of the limit frame, and by pulling the L-shaped plate toward the connecting rod by the first spring, the L-shaped plate is restricted inside the limit frame, so that the evaporator body can be restricted to the top of the ring.

[0009] Preferably, fixing grooves are evenly opened on the top of the circular ring, and the inner wall of the fixing groove is slidably connected to a first support rod, and the first support rod is fixedly connected to a circular arc plate on the side away from the fixing groove, and the circular arc plate is sleeved on the surface of the evaporator body, and a second threaded rod is rotatably inserted through the inner wall of the fixing groove, and the second threaded rod is threadedly inserted through one side of the first support rod.

[0010] The effect achieved by the above components is: manually controlling the second threaded rod to rotate, so that the first support rod threadedly sleeved on the surface of the second threaded rod is close to the evaporator body, and then the arc plate is sleeved on the surface of the evaporator body.

[0011] Preferably, rectangular grooves are evenly opened on the top of the circular ring, and a locking block is slidably connected to the inner wall of the rectangular groove, and a third threaded rod is rotatably inserted through the inner wall of the rectangular groove, and the third threaded rod is threadedly inserted through one side of the locking block, and a support bar is provided on the side of the locking block close to the circular ring, and a rotating rod is rotatably inserted through the end of the support bar away from the locking block, and a rectangular frame is fixedly connected to both ends of the rotating rod, and the side of the rectangular frame away from the rotating rod and the side of the arc plate away from the evaporator body are fixedly connected.

[0012] The effects achieved by the above components are: manually controlling the support bar to rotate on the surface of the rotating rod, and then setting the end of the support bar away from the rotating rod at the top of the ring, and manually controlling the third threaded rod to rotate, so that the locking block threadedly sleeved on the surface of the third threaded rod is close to the end of the support bar away from the rotating rod, so that the end of the support bar away from the rotating rod can be well restricted to the top of the ring.

[0013] Preferably, the supporting device includes a second supporting rod, the second supporting rod is fixedly connected to the bottom of the circular ring, the bottom of the second supporting rod is fixedly connected to a rectangular plate, the top of the bottom plate is fixedly connected to a cylinder, and the top of the cylinder and the bottom of the rectangular plate are fixed together.

[0014] The effect achieved by the above components is: when using the supporting device, the cylinder can be used to control the ring on the top of the second supporting rod to move up and down, thereby facilitating the evaporator body to move up and down, so that the height of the evaporator body can be adjusted well, thereby facilitating the input and output of materials to a certain extent.

[0015] Preferably, the top of the base plate is fixedly connected to a cylinder, the inner wall of the cylinder is slidably connected to a sliding rod, the bottom of the inner wall of the cylinder is fixedly connected to a second spring, the top of the second spring and the bottom of the sliding rod are fixedly connected, and the top of the sliding rod and the bottom of the rectangular plate are fixedly connected.

[0016] The effect achieved by the above components is that when the cylinder drives the rectangular plate to move, the sliding rod slides the inner wall of the cylinder well, thereby driving the second spring to stretch and contract, thereby playing a certain supporting role.

[0017] Preferably, a locking groove is provided on the top of the bottom plate, a locking strip is evenly and fixedly connected to the inner wall of the locking groove, a rotating strip is provided on the inner wall of the locking strip, a positioning rod is rotatably inserted through the end of the rotating strip away from the locking groove, a moving frame is fixedly connected to both ends of the positioning rod, and the end of the moving frame away from the positioning rod is fixedly connected to one side of the rectangular plate.

[0018] The effect achieved by the above components is that the end of the rotating bar away from the positioning rod is arranged on one side of the clamping bar arranged inside the clamping groove, so that the rotating bar can well support the rectangular plate.

[0019] Preferably, the bottom of the inner wall of the positioning groove is fixedly connected with a positioning groove, the inner wall of the positioning groove is slidably connected with a positioning block, the top of the positioning block is fixedly connected with a second damping rod, the top of the second damping rod is fixedly connected with a rotating block, a round rod is rotatably inserted through one side of the rotating block, both ends of the round rod are fixedly connected with a positioning frame, one end of the positioning frame away from the round rod is fixedly connected to one side of the rotating bar, a third spring is sleeved on the surface of the second damping rod, one end of the third spring is fixedly connected to the top of the positioning block, and one end of the third spring close to the second damping rod is fixedly connected to the bottom of the rotating block.

[0020] The effect achieved by the above components is: the rotating bar is pulled toward the locking groove by the third spring, so that the end of the rotating bar away from the positioning rod can be restricted inside the locking groove.

[0021] In the present invention, by setting a limiting device, when using the limiting device, the circular ring is manually set on the bottom of the evaporator body, so that the conical sleeve is set on the surface of the bottom of the evaporator body, so that the conical sleeve limits the evaporator body to the top of the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention provides a three-dimensional structural schematic diagram of a thin film evaporator for waste mineral oil;

[0023] Figure 2 A schematic diagram of the three-dimensional structure of a novel circular ring proposed by the present invention;

[0024] Figure 3 The present invention provides a three-dimensional structural schematic diagram of a novel conical sleeve;

[0025] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 A schematic diagram of the three-dimensional structure of a novel positioning block proposed by the present invention;

[0027] Figure 6 A three-dimensional structural schematic diagram of a novel sliding rod proposed by the present invention;

[0028] Figure 7 A schematic diagram of the three-dimensional structure of a novel rotating bar proposed by the present invention;

[0029] Figure 8 The present invention provides a three-dimensional structural schematic diagram of a novel positioning block.

[0030] Legend: 1. Evaporator body; 2. Motor; 3. Scraper; 4. Feed pipe; 5. Heating medium inlet; 6. Heating medium outlet; 7. Discharge pipe; 8. Limiting device; 801. Circular ring; 802. Conical sleeve; 803. Connecting groove; 804. Connecting rod; 805. First threaded rod; 806. Limiting frame; 807. L-shaped plate; 808. First damping rod; 809. First spring; 810. Fixing groove; 811. First support rod; 812. Arc plate; 813. Second threaded rod; 814. Rectangular frame; 815. Rotating rod; 816. Support bar; 817, rectangular groove; 818, blocking block; 819, third threaded rod; 9, supporting device; 901, cylinder; 902, cylinder; 903, second spring; 904, rectangular plate; 905, second supporting rod; 906, moving frame; 907, positioning rod; 908, rotating bar; 909, blocking groove; 910, blocking bar; 911, positioning block; 912, positioning frame; 913, round rod; 914, rotating block; 915, second damping rod; 916, third spring; 917, positioning groove; 918, sliding rod; 10, valve; 11, bottom plate. DETAILED DESCRIPTION

[0031] Embodiment 1, as Figure 1-8 As shown, a thin film evaporator for waste mineral oil, the top of the evaporator body 1 is fixedly connected with a motor 2, the output end of the motor 2 is fixedly connected with a scraper 3, a feed pipe 4 is arranged on one side of the evaporator body 1, a heating medium inlet 5 is arranged on one side of the evaporator body 1, a heating medium outlet 6 is arranged on one side of the evaporator body 1, a discharge pipe 7 is arranged on the bottom of the evaporator body 1, and valves 10 are arranged on the surfaces of the feed pipe 4, the discharge pipe 7, the heating medium inlet 5 and the heating medium outlet 6, a limiting device 8 is arranged on the surface of the evaporator body 1, a supporting device 9 is arranged on the bottom of the evaporator body 1, and a bottom plate 11 is arranged on the bottom of the supporting device 9. When the thin film evaporator is used, the treated waste mineral oil is passed into the interior of the thin film evaporator, and the interior of the evaporator is heated by passing the heating medium, and the scraper 3 is driven to rotate by the motor 2. The thin film evaporator forms a thin film of liquid under reduced pressure, thereby accelerating the evaporation process, and then evaporating the water inside the waste mineral oil, so that the waste resources inside the waste mineral oil can be recovered and utilized.

[0032] Reference Figures 2 to 5The limiting device 8 includes a circular ring 801, which is arranged on the top of the bottom plate 11. The inner wall of the circular ring 801 is fixedly connected with a conical sleeve 802. The conical sleeve 802 is slidably sleeved on the bottom of the evaporator body 1. The surface of the evaporator body 1 is fixedly connected with a limited position frame 806. When using the limiting device 8, the circular ring 801 is manually sleeved on the bottom of the evaporator body 1, so that the conical sleeve 802 is sleeved on the surface of the bottom of the evaporator body 1, so that the conical sleeve 802 limits the evaporator body 1 to the top of the bottom plate 11. The top of the circular ring 801 is evenly provided with connecting grooves 803, and the inner wall of the connecting groove 803 is slidably connected with a connecting rod 804. The inner wall of the connecting groove 803 is rotatably penetrated by a first threaded rod 805, and the first threaded rod 806 is inserted A threaded rod 805 is threadedly inserted into one side of the connecting rod 804, and the end of the connecting rod 804 away from the connecting groove 803 is set at the top of the limit frame 806. An L-shaped plate 807 is inserted and slidably penetrated at the top of the connecting rod 804, and one end of the L-shaped plate 807 is set inside the limit frame 806. The bottom of the L-shaped plate 807 is fixedly connected with a first damping rod 808, and the bottom of the first damping rod 808 is fixedly connected to the top of the connecting rod 804. The surface of the first damping rod 808 is sleeved with a first spring 809, and one end of the first spring 809 is fixedly connected to the top of the connecting rod 804, and the end of the first spring 809 close to the first damping rod 808 is fixedly connected to the bottom of the L-shaped plate 807. The first threaded rod 805 is manually controlled in the connecting groove The inner part of the ring 803 rotates, thereby driving the connecting rod 804 threadedly sleeved on the surface of the first threaded rod 805 to approach the evaporator body 1, and then controlling the L-shaped plate 807 to pass through the top of the connecting rod 804 and insert into the inside of the limit frame 806, and by pulling the L-shaped plate 807 in the direction close to the connecting rod 804 by the first spring 809, the L-shaped plate 807 is restricted in the inside of the limit frame 806, so that the evaporator body 1 can be restricted to the top of the circular ring 801, and the top of the circular ring 801 is evenly provided with fixing grooves 810, and the inner wall of the fixing groove 810 is slidably connected to the first support rod 811, and the side of the first support rod 811 away from the fixing groove 810 is fixedly connected to the arc plate 812, and the arc plate 812 is sleeved on the top of the evaporator body 1. The surface, the inner wall of the fixed groove 810 is rotatably penetrated with a second threaded rod 813, and the second threaded rod 813 is threadedly penetrated and inserted on one side of the first support rod 811. The second threaded rod 813 is manually controlled to rotate, so that the first support rod 811 threadedly sleeved on the surface of the second threaded rod 813 is close to the evaporator body 1, and then the arc plate 812 is sleeved on the surface of the evaporator body 1. Rectangular grooves 817 are evenly opened on the top of the ring 801, and the inner wall of the rectangular groove 817 is slidably connected with a positioning block 818. The inner wall of the rectangular groove 817 is rotatably penetrated with a third threaded rod 819, and the third threaded rod 819 is threadedly penetrated and inserted on one side of the positioning block 818. A support bar 816 is provided on the side of the positioning block 818 close to the ring 801.The end of the support bar 816 away from the positioning block 818 is rotated and inserted through a rotating rod 815. The two ends of the rotating rod 815 are fixedly connected with a rectangular frame 814. The side of the rectangular frame 814 away from the rotating rod 815 is fixedly connected to the side of the arc plate 812 away from the evaporator body 1. The support bar 816 is manually controlled to rotate on the surface of the rotating rod 815, and then the end of the support bar 816 away from the rotating rod 815 is set on the top of the ring 801. The third threaded rod 819 is manually controlled to rotate, and then the positioning block 818 threadedly sleeved on the surface of the third threaded rod 819 is close to the end of the support bar 816 away from the rotating rod 815. In this way, the end of the support bar 816 away from the rotating rod 815 can be well restricted to the top of the ring 801.

[0033] Reference Figures 6 to 8The supporting device 9 includes a second supporting rod 905, which is fixedly connected to the bottom of the circular ring 801, and a rectangular plate 904 is fixedly connected to the bottom of the second supporting rod 905. The top of the bottom plate 11 is fixedly connected to a cylinder 901, and the top of the cylinder 901 and the bottom of the rectangular plate 904 are fixed together. When the supporting device 9 is used, the circular ring 801 at the top of the second supporting rod 905 can be well controlled to move up and down through the cylinder 901, so as to facilitate the evaporator body 1 to move up and down. In this way, the height of the evaporator body 1 can be well adjusted, and the input and output of the material can be facilitated to a certain extent. The top of the bottom plate 11 is fixedly connected to a cylinder 902, and the cylinder 90 2 is slidably connected with a sliding rod 918, the bottom of the inner wall of the cylinder 902 is fixedly connected with a second spring 903, the top of the second spring 903 is fixedly connected to the bottom of the sliding rod 918, and the top of the sliding rod 918 is fixedly connected to the bottom of the rectangular plate 904. When the cylinder 901 drives the rectangular plate 904 to move, the sliding rod 918 slides the inner wall of the cylinder 902 well, so that the second spring 903 is driven to stretch and contract, which can play a certain supporting role. A clamping groove 909 is opened on the top of the bottom plate 11, and the inner wall of the clamping groove 909 is evenly fixedly connected with a clamping strip 910, and the inner wall of the clamping strip 910 is provided with a rotating strip 908. 08 is rotatably inserted through the end away from the positioning slot 909, and a positioning rod 907 is inserted through the end. The two ends of the positioning rod 907 are fixedly connected with a moving frame 906. The end of the moving frame 906 away from the positioning rod 907 is fixedly connected to one side of the rectangular plate 904. The end of the rotating bar 908 away from the positioning rod 907 is arranged on the side of the positioning bar 910 arranged inside the positioning slot 909. In this way, the rotating bar 908 can well support the rectangular plate 904. The bottom of the inner wall of the positioning slot 909 is fixedly connected with a positioning slot 917. The inner wall of the positioning slot 917 is slidably connected with a positioning block 911. The top of the positioning block 911 is fixedly connected with a second damping rod 915. The top of the second damping rod 915 is fixedly connected with A rotating block 914 is provided with a round rod 913 which is inserted and rotated through one side of the rotating block 914. Positioning frames 912 are fixedly connected at both ends of the round rod 913. One end of the positioning frame 912 which is away from the round rod 913 is fixedly connected to one side of the rotating bar 908. A third spring 916 is sleeved on the surface of the second damping rod 915. One end of the third spring 916 is fixedly connected to the top of the positioning block 911. One end of the third spring 916 which is close to the second damping rod 915 is fixedly connected to the bottom of the rotating block 914. The rotating bar 908 is pulled toward the locking groove 909 by the third spring 916. In this way, the end of the rotating bar 908 which is away from the positioning rod 907 can be restricted inside the locking groove 909.

[0034] Working principle: when using a thin film evaporator, the treated waste mineral oil is passed into the interior of the thin film evaporator, and the interior of the evaporator is heated by passing a heating medium, and the scraper 3 is driven to rotate by the motor 2. The thin film evaporator forms a thin film of liquid under reduced pressure, thereby accelerating the evaporation process, and then evaporating the water inside the waste mineral oil, so that the waste resources inside the waste mineral oil can be recovered and utilized. When using the limiting device 8, the ring 801 is manually sleeved on the bottom of the evaporator body 1, which will cause the conical sleeve 802 to be sleeved on the surface of the bottom of the evaporator body 1, and then the first threaded rod 805 is manually controlled to rotate inside the connecting groove 803, thereby driving the threaded sleeve on the first The connecting rod 804 on the surface of the first threaded rod 805 is close to the evaporator body 1, and then the L-shaped plate 807 is controlled to pass through the top of the connecting rod 804 and then inserted into the inside of the limit frame 806. The L-shaped plate 807 is pulled toward the direction close to the connecting rod 804 by the first spring 809, so that the L-shaped plate 807 is limited inside the limit frame 806. In this way, the evaporator body 1 can be limited to the top of the ring 801, and then the second threaded rod 813 is manually controlled to rotate, so that the first support rod 811 threadedly sleeved on the surface of the second threaded rod 813 is close to the evaporator body 1, and then the arc plate 812 is sleeved on the surface of the evaporator body 1. Finally, the support bar 816 is manually controlled to rotate on the surface of the rotating rod 815. The third threaded rod 819 is manually controlled to rotate, so that the blocking block 818 threadedly sleeved on the surface of the third threaded rod 819 is close to the end of the support bar 816 away from the rotating rod 815. In this way, the end of the support bar 816 away from the rotating rod 815 can be well restricted to the top of the ring 801, which will make the conical sleeve 802 restrict the evaporator body 1 to the top of the bottom plate 11. When the support device 9 is used, the cylinder 901 can be used to well control the ring 801 on the top of the second support rod 905 to move up and down, thereby facilitating the evaporator body 1 to move up and down, which can well adjust the evaporation. The height of the device body 1 is convenient for the input and output of materials to a certain extent. When the cylinder 901 drives the rectangular plate 904 to move, the sliding rod 918 slides the inner wall of the cylinder 902 well, so that the second spring 903 is driven to stretch and contract, which can play a certain supporting role. The third spring 916 pulls the rotating bar 908 toward the blocking groove 909, so that the end of the rotating bar 908 away from the positioning rod 907 can be restricted inside the blocking groove 909, and then the end of the rotating bar 908 away from the positioning rod 907 is set on the side of the blocking bar 910 set inside the blocking groove 909, so that the rotating bar 908 can support the rectangular plate 904 well.

[0035] It should be noted that all damping rods in this case are retractable dampers that can absorb energy during the retraction process.

Claims

1. A thin film evaporator for waste mineral oil, comprising an evaporator body (1), characterized in that: The top of the evaporator body (1) is fixedly connected to a motor (2), the output end of the motor (2) is fixedly connected to a scraper (3), one side of the evaporator body (1) is provided with a feed pipe (4), one side of the evaporator body (1) is provided with a heating medium inlet (5), one side of the evaporator body (1) is provided with a heating medium outlet (6), the bottom of the evaporator body (1) is provided with a discharge pipe (7), and the surfaces of the feed pipe (4), the discharge pipe (7), the heating medium inlet (5) and the heating medium outlet (6) are all provided with valves (10). A limiting device (8) is arranged on the surface of the evaporator body (1), a supporting device (9) is arranged at the bottom of the evaporator body (1), a bottom plate (11) is arranged at the bottom of the supporting device (9), the limiting device (8) comprises a circular ring (801), the circular ring (801) is arranged on the top of the bottom plate (11), the inner wall of the circular ring (801) is fixedly connected with a conical sleeve (802), the conical sleeve (802) is slidably sleeved on the bottom of the evaporator body (1), and the surface of the evaporator body (1) is fixedly connected with a limiting frame (806).

2. A thin film evaporator for waste mineral oil according to claim 1, characterized in that: The top of the circular ring (801) is evenly provided with connecting grooves (803), the inner wall of the connecting groove (803) is slidably connected with a connecting rod (804), the inner wall of the connecting groove (803) is rotatably penetrated by a first threaded rod (805), the first threaded rod (805) is threadedly penetrated and inserted on one side of the connecting rod (804), the end of the connecting rod (804) away from the connecting groove (803) is arranged on the top of the limit frame (806), the top of the connecting rod (804) is slidably penetrated by an L-shaped plate (807), the L-shaped One end of the plate (807) is arranged inside the limit frame (806); the bottom of the L-shaped plate (807) is fixedly connected to a first damping rod (808); the bottom of the first damping rod (808) is fixedly connected to the top of the connecting rod (804); a first spring (809) is sleeved on the surface of the first damping rod (808); one end of the first spring (809) is fixedly connected to the top of the connecting rod (804); and one end of the first spring (809) close to the first damping rod (808) is fixedly connected to the bottom of the L-shaped plate (807).

3. The thin film evaporator for waste mineral oil according to claim 1, characterized in that: The top of the circular ring (801) is evenly provided with a fixing groove (810), the inner wall of the fixing groove (810) is slidably connected to a first support rod (811), the first support rod (811) is fixedly connected to a circular arc plate (812) on a side away from the fixing groove (810), the circular arc plate (812) is sleeved on the surface of the evaporator body (1), and a second threaded rod (813) is rotatably inserted through the inner wall of the fixing groove (810), and the second threaded rod (813) is threadedly inserted through one side of the first support rod (811).

4. The thin film evaporator for waste mineral oil according to claim 1, characterized in that: The top of the circular ring (801) is evenly provided with rectangular grooves (817), and a positioning block (818) is slidably connected to the inner wall of the rectangular groove (817), and a third threaded rod (819) is rotatably inserted through the inner wall of the rectangular groove (817), and the third threaded rod (819) is threadedly inserted through one side of the positioning block (818), and a support bar (816) is provided on the side of the positioning block (818) close to the circular ring (801), and a rotating rod (815) is rotatably inserted through the end of the support bar (816) away from the positioning block (818), and a rectangular frame (814) is fixedly connected to both ends of the rotating rod (815), and the side of the rectangular frame (814) away from the rotating rod (815) is fixedly connected to the side of the arc plate (812) away from the evaporator body (1).

5. The thin film evaporator for waste mineral oil according to claim 1, characterized in that: The support device (9) comprises a second support rod (905), the second support rod (905) is fixedly connected to the bottom of the circular ring (801), the bottom of the second support rod (905) is fixedly connected to a rectangular plate (904), the top of the bottom plate (11) is fixedly connected to a cylinder (901), and the top of the cylinder (901) and the bottom of the rectangular plate (904) are fixed together.

6. The thin film evaporator for waste mineral oil according to claim 1, characterized in that: The top of the bottom plate (11) is fixedly connected to a cylinder (902), the inner wall of the cylinder (902) is slidably connected to a sliding rod (918), the bottom of the inner wall of the cylinder (902) is fixedly connected to a second spring (903), the top of the second spring (903) is fixedly connected to the bottom of the sliding rod (918), and the top of the sliding rod (918) is fixedly connected to the bottom of the rectangular plate (904).

7. The thin film evaporator for waste mineral oil according to claim 1, characterized in that: A locking groove (909) is provided on the top of the bottom plate (11), a locking strip (910) is evenly and fixedly connected to the inner wall of the locking groove (909), a rotating strip (908) is provided on the inner wall of the locking strip (910), and a positioning rod (907) is inserted and rotated through the rotating strip (908) at one end away from the locking groove (909), and a moving frame (906) is fixedly connected to both ends of the positioning rod (907), and one end of the moving frame (906) away from the positioning rod (907) is fixedly connected to one side of the rectangular plate (904).

8. A thin film evaporator for waste mineral oil according to claim 7, characterized in that: The bottom of the inner wall of the locking groove (909) is fixedly connected with a positioning groove (917), the inner wall of the positioning groove (917) is slidably connected with a positioning block (911), the top of the positioning block (911) is fixedly connected with a second damping rod (915), the top of the second damping rod (915) is fixedly connected with a rotating block (914), and a round rod (913) is rotatably inserted through one side of the rotating block (914).

9. A thin film evaporator for waste mineral oil according to claim 8, characterized in that: The two ends of the round rod (913) are fixedly connected with a positioning frame (912), one end of the positioning frame (912) away from the round rod (913) is fixedly connected to one side of the rotating bar (908), and the surface of the second damping rod (915) is sleeved with a third spring (916).

10. A thin film evaporator for waste mineral oil according to claim 9, characterized in that: One end of the third spring (916) is fixedly connected to the top of the positioning block (911), and one end of the third spring (916) close to the second damping rod (915) is fixedly connected to the bottom of the rotating block (914).

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