Waste plastic liquefaction liquid catalytic cracking device

Abstract

The utility model discloses waste plastics liquefaction liquid catalytic cracking device belongs to waste plastics recycling production technical field, including the reaction kettle, the top of reaction kettle is equipped with the feed inlet and has the hinged cover plate at the feed inlet, the bottom end lateral wall center of reaction kettle is rotatably connected with the rotary axle rod, and the side of rotary axle rod is fixed with first agitating rod, and first agitating rod is provided with a plurality of and a plurality of first agitating rod annular distribution, and the top of reaction kettle is provided with cooling assembly, and the bottom of reaction kettle is provided with the cold -dissipation component, the utility model discloses cooling assembly even sprays the cooling liquid to the outside wall of reaction kettle, avoids the reaction of the material in reaction kettle and releases a large amount of heat to make the lateral wall of reaction kettle rapidly heat, and the protection of reaction kettle is through the cold -dissipation component and hits the heat absorption down flow and diffuses, improves the heat absorption water dispersion fullness, makes the heat absorption water flow present parabolic even sprinkle down, makes the heat of heat absorption water flow fully dissipates, makes the heat absorption water can cool down quickly.

Description

Technical Field

[0001] This utility model belongs to the field of waste plastic recycling and production technology, specifically relating to a catalytic cracking device for waste plastic liquefaction. Background Technology

[0002] Plastics and plastic products, as an emerging material, have been widely and extensively used due to their lightweight, chemical stability, non-corrosiveness, good impact resistance, good transparency and wear resistance, good insulation, low thermal conductivity, good moldability and colorability, and low processing cost. However, this has also led to the generation of large quantities of various types of waste plastics. Therefore, the recycling and reuse of waste plastics is of great significance. Waste plastic recycling for oil production is one of the recycling methods. Existing methods for producing gasoline and diesel from waste plastics mainly involve using complex catalytic cracking technology to oil the waste plastics, forming a high-viscosity liquid, which is then distilled through a distillation column to obtain the finished gasoline and diesel products.

[0003] When waste plastic liquefaction enters the catalytic cracking stage, the cracking products are further transformed under the action of the catalyst to improve the light components and product quality. These reactions are usually exothermic and will release heat to heat the side wall of the reactor. This can easily cause the side wall of the reactor to rise to a high temperature. With prolonged use, this can easily damage the side wall of the reactor and shorten its service life.

[0004] Therefore, a catalytic cracking device for waste plastic liquefaction is needed to solve the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this invention is to provide a catalytic cracking device for waste plastic liquefaction to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a catalytic cracking device for waste plastic liquefaction, comprising a reactor, wherein the top of the reactor is provided as a feed inlet and a cover plate is hinged to the feed inlet, a rotating shaft is rotatably connected to the center of the bottom side wall of the reactor, a first stirring rod located inside the reactor is fixed on the side of the rotating shaft, multiple first stirring rods are provided and the multiple first stirring rods are arranged in a ring, a drive motor is provided at the bottom of the reactor, the output end of the drive motor is fixed to the bottom end of the rotating shaft, a cooling component is provided at the top of the reactor, and a cooling dissipation component is provided at the bottom of the reactor and driven by the drive motor.

[0007] It should be noted in the solution that the cooling component includes a liquid spraying seat fixed to the outer wall of the reactor and located at the top of the reactor. The liquid spraying seat has a first liquid passage chamber inside. An inlet pipe communicating with the first liquid passage chamber is fixed on the outer wall of the liquid spraying seat. A liquid spraying port communicating with the first liquid passage chamber is opened on the bottom surface of the liquid spraying seat. Multiple liquid spraying ports are provided and the multiple liquid spraying ports are arranged in a ring.

[0008] It is worth noting that each of the multiple spray nozzles on the bottom surface of the spray base is fixed with a connecting pipe. An arc-shaped nozzle connected to the connecting pipe is fixed at the end of the connecting pipe away from the spray base. A second liquid passage chamber is opened inside the arc-shaped nozzle. A spray hole connected to the second liquid passage chamber is opened on the side of the arc-shaped nozzle facing the outer wall of the reactor. Multiple spray holes are provided and the multiple spray holes are equidistantly distributed.

[0009] Furthermore, it should be noted that the cooling assembly includes a second gear fixed to the output shaft of the drive motor, a gear ring rotatably connected to the bottom end of the reactor, a shaft fixed to the outer wall of the bottom end of the reactor, a first gear rotatably connected to the shaft, the first gear meshing with the second gear and the gear ring, and a blade fixed to the top of the gear ring.

[0010] In a preferred embodiment, the blades are provided in a plurality of manner and the plurality of blades are arranged in a ring, and a plurality of second stirring rods are fixed on the first stirring rod.

[0011] In a preferred embodiment, the bottom of the reactor is fixed with a discharge pipe that communicates with the interior of the reactor, and a valve is installed on the discharge pipe.

[0012] In a preferred embodiment, a water collection tank is provided at the bottom of the reactor, and the drive motor is fixed to the inner side of the bottom of the water collection tank.

[0013] Compared with the prior art, the catalytic cracking device for waste plastic liquefaction provided by this utility model has at least the following beneficial effects:

[0014] (1) The cooling liquid is evenly sprayed onto the outer wall of the reactor through the cooling component. The cooling liquid can be water. The cooling component can then comprehensively cool the side wall of the reactor, thereby avoiding the problem of the side wall of the reactor being heated rapidly due to the large amount of heat released by the reaction of the materials inside the reactor, which would shorten the service life of the reactor. This protects the reactor.

[0015] (2) The heat-absorbing water flow is diffused by the heat dissipation component, which improves the dispersion of the heat-absorbing water and makes the heat-absorbing water flow fall evenly in a parabola. This allows the heat in the heat-absorbing water flow to be fully dissipated, so that the heat-absorbing water can be cooled quickly. The cooled water is then transported back to the cooling component, realizing the repeated recycling of cooling water and saving water resources. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the internal structure of the reaction vessel of this utility model;

[0019] Figure 4 This is a partial structural diagram of the cooling component of this utility model;

[0020] Figure 5 This is a partial structural diagram of the cooling component of this utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the spray nozzle of this utility model;

[0022] Figure 7 for Figure 6 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Cooling assembly; 101. Gear ring; 102. First gear; 103. Shaft; 104. Second gear; 105. Blade; 2. Cooling assembly; 201. Spray seat; 202. First liquid passage chamber; 203. Connecting pipe; 204. Arc-shaped nozzle; 205. Spray hole; 206. Second liquid passage chamber; 207. Inlet pipe; 3. Reactor; 4. Cover plate; 5. Discharge pipe; 6. Valve; 7. Drive motor; 8. Water collection tank; 9. Rotating shaft; 10. First stirring rod; 11. Second stirring rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Please see Figure 1-7This utility model provides a catalytic cracking device for waste plastic liquefaction, including a reactor 3. The top of the reactor 3 is a feed inlet, and a cover plate 4 is hinged to the feed inlet. A rotating shaft 9 is rotatably connected to the center of the bottom side wall of the reactor 3. Multiple first stirring rods 10 located inside the reactor 3 are fixed to the side of the rotating shaft 9. These first stirring rods 10 are arranged in a ring. A drive motor 7 is located at the bottom of the reactor 3, and the output end of the drive motor 7 is fixed to the bottom end of the rotating shaft 9. A cooling component 2 is located at the top of the reactor 3, and a heat dissipation component 1, which is connected to the drive motor 7, is located at the bottom of the reactor 3. During the catalytic cracking stage, waste plastic raw materials and catalyst are fed into the reactor 3 through the top opening, and the top opening is closed by the cover plate 4. The drive motor 7 is then started, and its output end drives the rotating shaft 9 to rotate, which in turn drives the multiple first stirring rods 10. The raw materials in reactor 3 are thoroughly stirred and mixed, allowing the pyrolysis products to be further transformed under the action of the catalyst, thereby improving the quality of light components and products. The reaction typically releases a significant amount of heat. Cooling component 2 evenly sprays coolant (which can be water) onto the outer wall of reactor 3, thus comprehensively cooling the sidewall of reactor 3. This prevents the sidewall from overheating due to the large amount of heat released from the reaction, which could shorten the lifespan of reactor 3, and protects it. Simultaneously, the rotating shaft 9 drives the cooling component 1, which agitates and diffuses the heat-absorbing water flow, improving the dispersion of the heat-absorbing water. This results in the heat-absorbing water flowing down in a parabolic trajectory, allowing for rapid heat dissipation and rapid recooling. The cooled water is then returned to cooling component 2, achieving repeated recycling of cooling water and saving water resources.

[0026] Further as Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, it is worth noting that the cooling assembly 2 includes a spray base 201 fixed to the outer wall of the reactor 3 and located at the top of the reactor 3. The spray base 201 has a first liquid passage chamber 202 inside. An inlet pipe 207 communicating with the first liquid passage chamber 202 is fixed to the outer wall of the spray base 201. Multiple spray ports communicating with the first liquid passage chamber 202 are provided on the bottom surface of the spray base 201. These multiple spray ports are arranged in a ring shape. A connecting pipe 203 is fixed inside each of the multiple spray ports on the bottom surface of the spray base 201. An arc-shaped nozzle 204 communicating with the connecting pipe 203 is fixed to the end of the connecting pipe 203 away from the spray base 201. A second liquid passage chamber 206 is provided inside the arc-shaped nozzle 204, which faces the reactor 3. The outer side wall has spray holes 205 that communicate with the second liquid passage chamber 206. There are multiple spray holes 205 that are equidistantly distributed. In operation, the inlet pipe 207 is connected to a water pump, and water is transported to the inside of the spray seat 201 through the inlet pipe 207. The water flow inside the spray seat 201 is transported to the inside of multiple arc-shaped nozzles 204 through the first liquid passage chamber 202 and the connecting pipe 203. The water is then sprayed evenly and finely onto the outer side wall of the reactor 3 through the multiple spray holes 205. This cooling water comprehensively cools and lowers the side wall of the reactor 3, thus preventing the side wall of the reactor 3 from heating up too quickly due to the large amount of heat released by the reaction of materials inside the reactor 3, which would shorten the service life of the reactor 3. This provides protection for the reactor 3.

[0027] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the cooling assembly 1 includes a second gear 104 fixed on the output shaft of the drive motor 7, a gear ring 101 rotatably connected to the bottom end of the reactor 3, a shaft 103 fixed on the outer wall of the bottom end of the reactor 3, a first gear 102 rotatably connected to the shaft 103, the first gear 102 meshing with the second gear 104 and the gear ring 101, and blades 105 fixed on the top of the gear ring 101. In specific operation, the rotating shaft 9 drives the second gear 104 to rotate, thereby driving the gear ring 101 to rotate through the cooperation of the second gear 104 and the first gear 102, thereby driving the multiple blades 105 on the gear ring 101 to rotate synchronously. The water flowing down the outer wall of the reactor 3 flows onto the blades 105, and then the rotating blades 105 beat and diffuse the heat-absorbing water flow, improving the full dispersion of the heat-absorbing water, so that the heat-absorbing water flow is evenly sprinkled down in a parabola, so that the heat in the heat-absorbing water flow is quickly dissipated, and the heat-absorbing water can be quickly cooled back.

[0028] Further as Figure 1As shown, it is worth noting that a water collection tank 8 is provided at the bottom of the reactor 3, and the drive motor 7 is fixed on the inner side of the bottom of the water collection tank 8. In actual operation, the water flow thrown down after the blades 105 are struck is collected by the water collection tank 8. The water pump input end connected to the outside of the liquid inlet pipe 207 is connected to the inside of the water collection tank 8. The water pump draws back the cooled water from the water collection tank 8 and delivers it to the liquid inlet pipe 207.

[0029] This scheme includes the following working process: Rotating shaft 9 drives multiple first stirring rods 10 to fully stir and mix the raw materials in the reactor 3, allowing the pyrolysis products to be further transformed under the action of a catalyst, thereby improving the quality of light components and products. Water is transported to the spray seat 201 through the inlet pipe 207. The water flow inside the spray seat 201 is transported to multiple arc-shaped nozzles 204 through the first liquid passage chamber 202 and connecting pipe 203, and then evenly and finely sprayed onto the outer wall of the reactor 3 through multiple spray holes 205. This allows for comprehensive cooling of the side wall of the reactor 3 by cooling water, thereby preventing the reactor from... The large amount of heat released by the reaction of materials in reactor 3 causes the side wall of reactor 3 to heat up quickly. The rotating shaft 9 drives the second gear 104 to rotate, which in turn drives the gear ring 101 to rotate through the cooperation of the second gear 104 and the first gear 102. This causes the multiple blades 105 on the gear ring 101 to rotate synchronously. The water flowing down the outer wall of reactor 3 flows onto the blades 105, and the rotating blades 105 further agitate and diffuse the heat-absorbing water flow, improving the dispersion of the heat-absorbing water. This allows the heat-absorbing water flow to fall evenly in a parabolic pattern, enabling the heat in the heat-absorbing water flow to dissipate quickly and allowing the heat-absorbing water to cool down rapidly.

[0030] Further as Figure 3 and Figure 4 As shown, it is worth noting that multiple blades 105 are provided and arranged in a ring, and multiple second stirring rods 11 are fixed on the first stirring rod 10. In actual operation, the multiple second stirring rods 11 are used to assist in stirring the material inside the reactor 3, thereby improving the overall processing efficiency.

[0031] Further as Figure 1 and Figure 2 As shown, it is worth noting that the bottom of the reactor 3 is fixed with a discharge pipe 5 that communicates with the inside of the reactor 3, and a valve 6 is installed on the discharge pipe 5. In actual operation, after the material inside the reactor 3 has been processed, the valve 6 on the discharge pipe 5 is opened, and the material inside the reactor 3 is discharged through the discharge pipe 5 for easy material removal.

[0032] In summary: Cooling component 2 evenly sprays coolant onto the outer wall of reactor 3, thereby comprehensively cooling the side wall of reactor 3. This prevents the side wall of reactor 3 from heating up too quickly due to the large amount of heat released from the reaction of materials inside reactor 3, which would shorten the service life of reactor 3, thus protecting reactor 3. At the same time, the rotating shaft 9 drives the cooling component 1 to work, thereby agitating and dispersing the heat-absorbing water flow, improving the dispersion of the heat-absorbing water, and causing the heat-absorbing water flow to fall evenly in a parabolic trajectory. This allows the heat in the heat-absorbing water flow to be fully dissipated, enabling the heat-absorbing water to cool quickly back to cool. The cooled water is then returned to cooling component 2, realizing the repeated recycling of cooling water and saving water resources.

[0033] The drive motor 7 and the water pump can be purchased from the market. The drive motor 7 and the water pump are equipped with a power supply. They are mature technologies in the field and have been fully disclosed. Therefore, they will not be described again in the specification.

Claims

1. A catalytic cracking device for waste plastic liquefaction, comprising a reaction vessel (3), characterized in that, The top of the reactor (3) is provided with a feed inlet and a cover plate (4) is hinged to the feed inlet. A rotating shaft (9) is rotatably connected to the center of the bottom side wall of the reactor (3). A first stirring rod (10) located inside the reactor (3) is fixed on the side of the rotating shaft (9). Multiple first stirring rods (10) are provided and the multiple first stirring rods (10) are arranged in a ring. A drive motor (7) is provided at the bottom of the reactor (3). The output end of the drive motor (7) is fixed to the bottom end of the rotating shaft (9). A cooling component (2) is provided at the top of the reactor (3). A cooling component (1) is provided at the bottom of the reactor (3) and is connected to the drive motor (7) in a transmission.

2. The catalytic cracking device for waste plastic liquefaction according to claim 1, characterized in that, The cooling component (2) includes a liquid spray seat (201) fixed to the outer wall of the reactor (3) and located at the top of the reactor (3). The liquid spray seat (201) has a first liquid passage chamber (202) inside. The outer wall of the liquid spray seat (201) is fixed with an inlet pipe (207) communicating with the first liquid passage chamber (202). The bottom surface of the liquid spray seat (201) has a liquid spray port communicating with the first liquid passage chamber (202). There are multiple liquid spray ports and the multiple liquid spray ports are arranged in a ring.

3. The catalytic cracking device for waste plastic liquefaction according to claim 2, characterized in that, A connecting pipe (203) is fixed inside each of the multiple spray nozzles on the bottom surface of the spray base (201). An arc-shaped nozzle (204) communicating with the connecting pipe (203) is fixed at one end away from the spray base (201). A second liquid passage chamber (206) is opened inside the arc-shaped nozzle (204). A spray hole (205) communicating with the second liquid passage chamber (206) is opened on the side of the arc-shaped nozzle (204) facing the outer wall of the reactor (3). There are multiple spray holes (205) and the multiple spray holes (205) are equidistantly distributed.

4. The catalytic cracking device for waste plastic liquefaction according to claim 3, characterized in that, The cooling assembly (1) includes a second gear (104) fixed on the output shaft of the drive motor (7), a gear ring (101) is rotatably connected to the bottom end of the reactor (3), a shaft (103) is fixed on the outer side wall of the bottom end of the reactor (3), a first gear (102) is rotatably connected to the shaft (103), the first gear (102) meshes with the second gear (104) and the gear ring (101), and a blade (105) is fixed on the top end of the gear ring (101).

5. The catalytic cracking device for waste plastic liquefaction according to claim 4, characterized in that, The blades (105) are provided in multiple ways and are arranged in a ring. The first stirring rod (10) is fixed with multiple second stirring rods (11).

6. The catalytic cracking device for waste plastic liquefaction according to claim 1, characterized in that, The bottom of the reactor (3) is fixed with a discharge pipe (5) that communicates with the inside of the reactor (3), and a valve (6) is installed on the discharge pipe (5).

7. The catalytic cracking device for waste plastic liquefaction according to claim 6, characterized in that, The bottom of the reactor (3) is provided with a water collection tank (8), and the drive motor (7) is fixed on the inner side of the bottom end of the water collection tank (8).

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