Cracking oil separation and purification device

By using corrosion-resistant materials and filter screen design, the problems of shell corrosion and exhaust gas pollution during the heating process of the pyrolysis oil separation and purification device have been solved, thus extending the equipment life and protecting the environment.

CN224299155UActive Publication Date: 2026-05-29HUNAN CHAOYUAN RENEWABLE RESOURCES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN CHAOYUAN RENEWABLE RESOURCES CO LTD
Filing Date
2025-08-26
Publication Date
2026-05-29

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    Figure CN224299155U_ABST
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Abstract

The utility model relates to pyrolysis oil processing technical field, especially a pyrolysis oil separation and purification device. The utility model provides such a pyrolysis oil separation and purification device, including foot stool, purification tank, lid, filter frame, motor one, rotating rod and stirring paddle etc., three foot stools are circularly distributed, and the same purification tank is fixedly connected between the top of three foot stools, the left top of purification tank is equipped with the lid, the filter frame is equipped with in the position of the left top of purification tank below lid, motor one is installed in the top middle part of purification tank, and the output shaft of motor one is arranged in the top of purification tank and is connected with rotating rod, and the outer side wall and lower outer side wall of rotating rod middle part are all fixedly connected with several stirring paddles. The utility model discloses through drain pipe and valve design, can replace heat conduction liquid regularly, prevents the shell corrosion because of hot liquid deterioration (such as acid value increase, oxidation product accumulation) aggravation, prolongs equipment service life 30% or more.
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Description

Technical Field

[0001] This utility model relates to the field of cracked oil processing technology, and in particular to a cracked oil separation and purification device. Background Technology

[0002] A pyrolysis oil separation and purification unit is an industrial device used to process pyrolysis oil (typically from plastics, rubber, or biomass pyrolysis processes). It is designed to separate complex pyrolysis oil mixtures into more valuable components and remove impurities.

[0003] Most existing cracked oil separation and purification devices use heating for dehydration. However, during the heating process, the shell often corrodes and leaks liquid. This is partly due to infrequent liquid replacement. Furthermore, the waste gas produced during the heating process is discharged without filtration, which pollutes the environment. Utility Model Content

[0004] In order to overcome the shortcomings of existing devices that are easily corroded and whose emitted gases pollute the environment, the technical problem of this utility model is to provide a cracked oil separation and purification device.

[0005] A cracked oil separation and purification device includes a stand, a purification tank, a cover, a filter frame, a motor, a rotating rod, a stirring paddle, a heating element, an inlet pipe, a drain pipe, and a valve. The three stands are arranged in a circular pattern, and the same purification tank is fixedly connected to the top of the three stands. A cover is provided on the top left of the purification tank. A filter frame is provided on the top left of the purification tank below the cover. A motor is installed in the middle of the top of the purification tank. The output shaft of the motor passes through the top of the purification tank and is connected to the rotating rod. Several stirring paddles are fixedly connected to the middle and lower outer walls of the rotating rod. A heating groove is opened in the outer wall of the purification tank. A heating element is provided in the heating groove of the outer wall of the purification tank, and the heating element is arranged in a circular pattern in the heating groove of the outer wall of the purification tank. An inlet pipe is provided on the upper left side of the outer wall of the purification tank, and a drain pipe is provided on the lower left side of the outer wall of the purification tank. A valve is fixedly connected to the top of the drain pipe.

[0006] Further explanation: It also includes a discharge port, a second motor, and a ball valve. The discharge port is fixed to the bottom of the purification box. The second motor is installed on the left side of the outer wall of the discharge port. The output shaft of the second motor passes through the left side of the outer wall of the discharge port and is connected to the ball valve. The ball valve has a cylindrical discharge hole in the middle and is horizontal in the normal state.

[0007] To further explain, it also includes an exhaust pipe and a filter screen. An exhaust pipe is located on the top right side of the purification chamber, and a filter screen is fixedly connected to the middle of the inner wall of the exhaust pipe.

[0008] To further explain, it also includes a controller. The controller is installed on the lower front side of the outer wall of the purification box, and the controller is electrically connected to motor one, heating element and motor two.

[0009] To further clarify, both the filter frame and the filter screen are detachable.

[0010] To further clarify, the purification chamber, discharge port, inlet pipe, and outlet pipe are all made of corrosion-resistant materials.

[0011] The beneficial effects of this utility model are as follows: 1. Through the design of the drain pipe and valve, this utility model can replace the heat transfer liquid regularly, prevent the shell corrosion from being aggravated by the deterioration of the hot liquid (such as the increase of acid value and the accumulation of oxidation products), and extend the service life of the equipment by more than 30%.

[0012] 2. In this invention, the heat-conducting liquid indirectly heats the pyrolysis oil through a heating tank on the outer wall of the purification tank, avoiding direct contact with corrosive media and reducing the risk of thermal corrosion of the shell. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional cross-sectional view of the purification box and heating element of this utility model.

[0015] Figure 3 This is a three-dimensional sectional view of the filter frame and ball valve components of this utility model.

[0016] Figure 4 This is a three-dimensional cross-sectional view of the exhaust pipe and filter screen components of this utility model.

[0017] The markings in the attached diagram are as follows: 1: stand, 2: purification box, 3: cover, 4: filter frame, 5: motor one, 6: rotating rod, 61: stirring paddle, 7: heating element, 8: liquid inlet pipe, 9: liquid outlet pipe, 10: valve, 11: discharge port, 12: motor two, 13: ball valve, 14: exhaust pipe, 15: filter screen, 16: controller. Detailed Implementation

[0018] Example: A cracked oil separation and purification device, such as Figures 1-3As shown, the device includes a stand 1, a purification tank 2, a cover 3, a filter frame 4, a motor 5, a rotating rod 6, a stirring paddle 61, a heating element 7, an inlet pipe 8, a drain pipe 9, and a valve 10. The three stands 1 are arranged in a circular pattern, and the same purification tank 2 is fixedly connected to the top of the three stands 1. The top left of the purification tank 2 is provided with a cover 3. The filter frame 4 is located on the top left of the purification tank 2 below the cover 3. The motor 5 is fixedly installed in the top middle of the purification tank 2. The output shaft of the motor 5 passes through the top of the purification tank 2 and is connected to the rotating rod 6. Several stirring paddles 61 are fixedly connected to the middle and lower outer walls of the rotating rod 6. A heating groove is opened in the outer wall of the purification tank 2. The heating element 7 is provided in the heating groove of the outer wall of the purification tank 2 in a circular pattern. The inlet pipe 8 is provided in the upper left side of the outer wall of the purification tank 2. The drain pipe 9 is provided in the lower left side of the outer wall of the purification tank 2. The valve 10 is fixedly connected to the top of the drain pipe 9.

[0019] like Figures 1-3 As shown, it also includes a discharge port 11, a second motor 12, and a ball valve 13. The discharge port 11 is fixedly connected to the bottom of the purification tank 2. The second motor 12 is fixedly installed on the left side of the outer wall of the discharge port 11. The output shaft of the second motor 12 passes through the left side of the outer wall of the discharge port 11 and is connected to the ball valve 13. A cylindrical discharge hole is opened in the middle of the ball valve 13, and the ball valve 13 is horizontal in the normal state. The purification tank 2, the discharge port 11, the liquid inlet pipe 8, and the liquid outlet pipe 9 are all made of corrosion-resistant materials.

[0020] like Figures 1-4 As shown, it also includes an exhaust pipe 14 and a filter screen 15. An exhaust pipe 14 is provided on the top right side of the purification box 2. A filter screen 15 is fixed to the middle of the inner side wall of the exhaust pipe 14. Both the filter frame 4 and the filter screen 15 are detachable.

[0021] like Figure 1 As shown, it also includes a controller 16. The controller 16 is installed on the lower front side of the outer wall of the purification box 2, and the controller 16 is electrically connected to the motor 5, the heating element 7 and the motor 12.

[0022] When the user needs to separate and purify the cracked oil, first, the heat transfer liquid is poured into the heating tank inside the outer wall of the purification tank 2 through the inlet pipe 8. Then, the heating element 7 is activated to heat the heat transfer liquid. When the heat transfer liquid reaches the required temperature, the lid 3 is opened, and then the cracked oil to be separated and purified is poured into the purification tank 2. The cracked oil poured into the purification tank 2 will first pass through the filter frame 4. The filter frame 4 will intercept the solids contained in the cracked oil and filter the liquid into the purification tank 2. Then, the lid 3 is closed, and the heat transfer liquid will transfer heat to the cracked oil through the inner wall of the purification tank 2. Then, the motor 5 is started. The output shaft of the motor 5 drives the rotating rod 6 and several stirring paddles 61 to rotate. The stirring paddles 61 agitate the cracked oil and make it heat evenly. During the stirring and heating process, the cracked oil continuously loses moisture and generates gas. The generated gas enters the exhaust pipe 14, where it is first filtered through the filter screen 15 before being discharged. When the cracked oil in the purification chamber 2 is heated to the required duration, the motor 12 is started. The output shaft of the motor 12 drives the ball valve 13 to rotate a quarter turn, changing the ball valve 13 from horizontal to vertical. After the ball valve 13 is in vertical position, the cracked oil in the purification chamber 2, after heating and purification, flows out through the discharge port 11. The user needs to place a heat-resistant container below the discharge port 11 beforehand. Finally, the cracked oil flowing out of the discharge port 11 will flow into the heat-resistant container, thus completing the separation and purification operation of the cracked oil.

[0023] When the user needs to replace the heat transfer fluid, a container should be prepared in advance and placed under the drain pipe 9. Then, turn the valve 10 clockwise. At this time, the heat transfer fluid in the heating tank on the outer wall of the purification box 2 will be discharged through the drain pipe 9 and flow into the prepared container. After the discharge is complete, turn the valve 10 counterclockwise and pour the new heat transfer fluid into the heating tank on the outer wall of the purification box 2 through the inlet pipe 8.

Claims

1. A pyrolysis oil separation and purification device, characterized in that: The system includes a stand (1), a purification box (2), a cover (3), a filter frame (4), a motor (5), a rotating rod (6), a stirring paddle (61), a heating element (7), an inlet pipe (8), a drain pipe (9), and a valve (10). The three stands (1) are arranged in a circular pattern. The top of the three stands (1) is fixed to the same purification box (2). The top left of the purification box (2) is equipped with a cover (3). The top left of the purification box (2) is equipped with a filter frame (4) located below the cover (3). The top center of the purification box (2) is equipped with a motor (5). The output shaft passes through the top of the purification box (2) and is connected to the rotating rod (6). Several stirring paddles (61) are fixed to the middle outer wall and the lower outer wall of the rotating rod (6). A heating groove is opened in the outer wall of the purification box (2). A heating element (7) is provided in the heating groove of the outer wall of the purification box (2). The heating element (7) is arranged in a circular shape in the heating groove of the outer wall of the purification box (2). An inlet pipe (8) is provided on the upper left side of the outer wall of the purification box (2). A drain pipe (9) is provided on the lower left side of the outer wall of the purification box (2). A valve (10) is fixed to the top of the drain pipe (9).

2. The pyrolysis oil separation and purification device according to claim 1, characterized in that: It also includes a discharge port (11), a second motor (12) and a ball valve (13). The bottom of the purification box (2) is fixed with a discharge port (11). A second motor (12) is installed on the left side of the outer wall of the discharge port (11). The output shaft of the second motor (12) passes through the left side of the outer wall of the discharge port (11) and is connected to a ball valve (13). A cylindrical discharge hole is opened in the middle of the ball valve (13), and the ball valve (13) is horizontal in normal state.

3. The pyrolysis oil separation and purification device according to claim 2, characterized in that: It also includes an exhaust pipe (14) and a filter screen (15). The top right side of the purification box (2) is provided with an exhaust pipe (14), and a filter screen (15) is fixedly connected to the middle of the inner side wall of the exhaust pipe (14).

4. The pyrolysis oil separation and purification device according to claim 3, characterized in that: It also includes a controller (16), which is installed on the lower front side of the outer wall of the purification box (2), and the controller (16) is electrically connected to motor one (5), heating element (7) and motor two (12).

5. A pyrolysis oil separation and purification device according to claim 4, characterized in that: Both the filter frame (4) and the filter screen (15) are detachable.

6. The pyrolysis oil separation and purification device according to claim 5, characterized in that: The purification box (2), the discharge port (11), the liquid inlet pipe (8) and the liquid outlet pipe (9) are all made of corrosion-resistant materials.