Silicone rubber catalytic pyrolysis recovery device

Abstract

The invention relates to the field of silicone rubber recovery, and discloses a silicone rubber catalytic pyrolysis recovery device which comprises a rack, and the rack is provided with a heating device, a pyrolysis device and a cooling recovery device; the heating device comprises a heating main body; the pyrolysis device comprises a pyrolysis pipeline, the two ends of the pyrolysis pipeline communicate with a gas inlet pipeline and the cooling recovery device correspondingly, and the gas inlet pipeline is used for introducing pyrolysis gas into the pyrolysis pipeline; the pyrolysis pipeline comprises a sleeve and an inner pipe, the top end of the sleeve is communicated with the gas inlet pipeline, the inner diameter of a necking part of the inner pipe is gradually reduced from top to bottom, and the top of the necking part is hermetically connected with the inner wall of the sleeve; the cooling recovery device comprises a condensation recovery assembly and a tail gas emission assembly. The two ends of the condensation recovery assembly communicate with the inner pipe and the tail gas emission assembly correspondingly. When pyrolysis gas passes through the necking part, the gas is forced to pass through the catalyst placed in the necking part, and the contact between the gas and the catalyst is more comprehensive and sufficient, so that the pyrolysis recovery efficiency of the silicone rubber is improved.

Description

Technical Field

[0001] The invention relates to the technical field of silicone rubber recovery, in particular to a silicone rubber catalytic pyrolysis recovery device. Background Art

[0002] There are three main methods for recycling waste composite insulator silicone rubber: mechanical recycling, chemical recycling and pyrolysis recycling. Mechanical recycling mainly involves mechanically crushing and screening the silicone rubber sheds, using them as building fillers or mixing them into raw rubber, and preparing recycled rubber through a melt extrusion process; chemical recycling uses various chemical reagents, such as sulfuric acid, potassium hydroxide, and silane halogenating agents, to degrade the organic silicon in the silicone rubber sheds into cyclosiloxane intermediates; pyrolysis recycling involves pyrolyzing the composite insulator silicone rubber sheds into cyclosiloxane intermediates in a high-temperature, oxygen-free environment.

[0003] However, there are still many problems in the above three recycling methods. Mechanical recycling will greatly reduce the economic value of silicone rubber products; chemical recycling will consume a large amount of chemical reagents, the products will be more complex, and a large amount of difficult-to-remove chemical reagents will remain; and the pyrolysis recovery method will consume a lot of energy, the reaction conditions are harsh, and in the prior art, the pyrolysis gas and the catalyst are difficult to fully contact, and the catalyst is difficult to play its full role, resulting in a further reduction in the pyrolysis efficiency of silicone rubber. Summary of the invention

[0004] The technical problem to be solved by the present invention is: how to improve the pyrolysis recovery efficiency of silicone rubber. In order to solve the above technical problem, the present invention provides a silicone rubber catalytic pyrolysis recovery device, including a frame, wherein the frame is provided with a heating device, a pyrolysis device and a cooling recovery device;

[0005] The heating device comprises a heating body, a middle portion of which is provided with a mounting through hole along a vertical direction, and the mounting through hole is used for mounting the pyrolysis device;

[0006] The pyrolysis device comprises a pyrolysis pipeline, the pyrolysis pipeline is limited and fixed in the installation through hole, the two ends of the pyrolysis pipeline are respectively connected to the air intake pipeline and the cooling recovery device, the air intake pipeline is used to introduce pyrolysis gas into the pyrolysis pipeline; the pyrolysis pipeline comprises a sleeve and an inner tube, the top end of the sleeve is connected to the air intake pipeline, the inner tube comprises a tube body and a necking portion, the inner diameter of the necking portion gradually decreases from the top to the bottom, the top of the necking portion is sealed and connected to the inner wall of the sleeve, and the bottom of the necking portion is connected to the tube body;

[0007] The cooling recovery device comprises a condensation recovery component and an exhaust gas emission component, and two ends of the condensation recovery component are respectively connected to the inner tube body and the exhaust gas emission component.

[0008] Preferably, the sleeve and the inner tube are both made of quartz.

[0009] Preferably, the air intake pipeline includes an air intake interface, a vacuum pressure gauge and a pressure relief valve which are connected in sequence, the pressure relief valve is fixed to the frame, the end of the pressure relief valve away from the vacuum pressure gauge is connected to the sleeve, and a gas flow meter and a gas flow regulating valve are provided at the air intake interface.

[0010] Preferably, the condensation recovery component includes a primary condenser, a collector and a secondary condenser which are connected in sequence, the air inlet end of the primary condenser is connected to the tube body, and the air outlet end of the secondary condenser is connected to the exhaust gas emission component.

[0011] Preferably, the first-stage condenser includes an air condenser tube, the second-stage condenser includes a water-cooled condenser tube, the collector includes a first port, a second port and a third port, the first port is connected to the air condenser tube, the third port is connected to the air inlet of the water-cooled condenser tube, and the second port is provided with a removable sealing plug.

[0012] Preferably, a water removal component is provided in the air condensation tube, and the water removal component is made of a hydrophilic and oleophobic material.

[0013] Preferably, the water-cooled condenser is further provided with a water inlet and a water outlet, and a water-cooled circulation pump and a cold cup are sequentially connected between the water inlet and the water outlet;

[0014] The cold cup is connected to a cooling fin, and a radiator is arranged on a side of the cooling fin away from the cold cup.

[0015] Preferably, the exhaust gas emission component comprises an anti-backflow bottle, an exhaust gas absorption bottle and an activated carbon adsorption tube which are connected in sequence, and the anti-backflow bottle is connected to the gas outlet of the water-cooled condenser.

[0016] Preferably, the air outlet of the water-cooled condenser is connected to a three-way valve, a first outlet of the three-way valve is connected to the anti-backflow bottle, and a second outlet of the three-way valve is connected to a vacuum pump.

[0017] Preferably, the frame is also provided with a control panel and a battery assembly;

[0018] The battery assembly is used to supply power to electrical equipment in the device;

[0019] The control panel is provided with a water circulation regulating switch, a refrigerator switch and a cold cup temperature controller. The water circulation regulating switch is electrically connected to the water cooling circulation pump, the refrigerator switch is electrically connected to the refrigeration plate and the radiator, and the cold cup temperature controller is electrically connected to a temperature sensor arranged in the cold cup.

[0020] Compared with the prior art, the silicone rubber catalytic pyrolysis recovery device provided in the embodiment of the present invention has the following beneficial effects:

[0021] In the present invention, the pyrolysis pipe is heated by a heating body in the pyrolysis device to promote the pyrolysis reaction of the silicone rubber in the pyrolysis pipe. The pyrolysis pipe adopts a double-layer structure, and the constricted portion of the inner pipe adopts a structure with a gradually decreasing inner diameter. When the pyrolysis gas introduced into the air inlet pipe passes through the constricted portion with the carrier gas, the cross-sectional area of ​​the gas flow becomes smaller, and the gas is forced to squeeze through the catalyst placed in the constricted portion. The gas flow rate becomes larger and the catalyst is stirred, and the contact between the gas and the catalyst is more comprehensive and sufficient, thereby improving the pyrolysis recovery efficiency of the silicone rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a front view of the present invention;

[0023] Figure 2 is a stereoscopic view of the present invention;

[0024] Figure 3 The present invention Figure 1 Schematic diagram of the local structure in;

[0025] Figure 4 It is a schematic diagram of the structure of the pyrolysis pipeline of the present invention;

[0026] Figure 5 It is a schematic diagram of the pipeline connection structure in the present invention.

[0027] In the figure: 1. Heating body;

[0028] 2. pyrolysis pipeline; 21. casing; 22. inner tube; 221. tube body; 222. necking portion;

[0029] 3. Air intake pipeline; 31. Air intake interface; 32. Vacuum pressure gauge; 33. Pressure relief valve; 34. Gas flow meter; 35. Gas flow regulating valve;

[0030] 4. Condensate recovery assembly; 41. Primary condenser; 42. Collector; 421. Sealing plug; 43. Secondary condenser; 44. Water-cooled circulation pump; 45. Cold cup; 451. Radiator;

[0031] 5. Exhaust emission components; 51. Anti-backflow bottle; 52. Exhaust absorption bottle; 53. Activated carbon adsorption tube;

[0032] 6. Three-way valve; 7. Vacuum pump; 8. Battery assembly; 9. Control panel; 91. Water circulation adjustment switch; 92. Refrigerator switch; 93. Cold cup temperature controller. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] like Figure 1 and Figure 4 As shown, a preferred embodiment of the present invention provides a silicone rubber catalytic pyrolysis recovery device, which includes a frame, and the frame is provided with a heating device, a pyrolysis device and a cooling recovery device;

[0035] The heating device comprises a heating body 1, a mounting through hole is arranged in the middle of the heating body 1 along the vertical direction, and the mounting through hole is used to install the pyrolysis device;

[0036] The pyrolysis device includes a pyrolysis pipeline 2, which is limited and fixed in the installation through hole, and the two ends of the pyrolysis pipeline 2 are respectively connected to the air intake pipeline 3 and the cooling recovery device, and the air intake pipeline 3 is used to introduce pyrolysis gas into the pyrolysis pipeline 2; the pyrolysis pipeline 2 includes a sleeve 21 and an inner tube 22, the top of the sleeve 21 is connected to the air intake pipeline 3, and the inner tube 22 includes a tube body 221 and a necking portion 222, the inner diameter of the necking portion 222 gradually decreases from the top to the bottom, the top of the necking portion 222 is sealed and connected to the inner wall of the sleeve 21, and the bottom of the necking portion 222 is connected to the tube body 221;

[0037] The cooling recovery device comprises a condensation recovery component 4 and an exhaust gas emission component 5 , and two ends of the condensation recovery component 4 are respectively connected to the tube body 221 of the inner tube 22 and the exhaust gas emission component 5 .

[0038] Specifically, in the actual silicone rubber pyrolysis recovery process, the heating body 1 mainly provides a heating environment for the pyrolysis pipe 2, and cooperates with the catalyst stored in the pyrolysis pipe 2 to promote the pyrolysis of the silicone rubber. When the temperature of the heating body 1 reaches the preset pyrolysis temperature, a mixed gas of carrier gas and pyrolysis gas can be introduced into the pyrolysis pipe 2 through the air inlet pipe 3. After the pyrolysis gas enters the sleeve 21 of the pyrolysis pipe 2 along the carrier gas, it continues to be transmitted along the sleeve 21 to the constricted portion 222 of the inner pipe 22. Since the inner diameter of the constricted portion 222 of the inner pipe 22 gradually decreases, and its top edge is The inner wall of the sleeve 21 is sealed and connected, and the pyrolysis gas can only enter the tube body 221 of the inner tube 22 along the reduced inner diameter with the carrier gas. Since the cross-sectional area of ​​the gas flow gradually decreases during the transmission process, the pyrolysis gas is forced to squeeze through the catalyst placed in the constricted part 222, and the contact between the pyrolysis gas and the catalyst is more comprehensive and sufficient, and the pyrolysis recovery efficiency of the silicone rubber is also higher; and due to the reduction in cross-sectional area, the speed of the airflow will change in the constricted part 222, stirring the catalyst, so that the contact effect between the pyrolysis gas and the catalyst is further enhanced, and the pyrolysis efficiency of the silicone rubber is also better. The condensation recovery component 4 in the cooling recovery device can condense and recover the recyclable components after the pyrolysis of the silicone rubber, and the non-recyclable or difficult-to-recover components are discharged to the next recovery process or directly discharged after being processed by the exhaust emission component 5. In addition, the constricted part 222 of the pyrolysis pipeline 2 is a rotating body structure, and its specific structure is not limited to a cone or funnel shape, and other structures with gradually decreasing inner diameters are also acceptable.

[0039] In a specific embodiment, the heating body 1 is heated by an electric heating wire and coated with a refractory material. A temperature sensor is arranged in the mounting hole to monitor the temperature of the heating body 1. The temperature sensor is electrically connected to the temperature control switch of the heating body 1 to facilitate timely feedback and adjustment of the heating temperature of the heating body 1.

[0040] In some embodiments, the sleeve 21 and the inner tube 22 are both made of quartz. Quartz is resistant to high temperatures and can meet the temperature required for pyrolysis of silicone rubber. Quartz is stable and does not easily react with the catalyst and substances in the pyrolysis gas, thereby ensuring the normal pyrolysis of silicone rubber.

[0041] like Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the air intake pipeline 3 includes an air intake interface 31, a vacuum pressure gauge 32 and a pressure relief valve 33 which are connected in sequence. The pressure relief valve 33 is fixed to the frame, and one end of the pressure relief valve 33 away from the vacuum pressure gauge 32 is connected to the sleeve 21. A gas flow meter 34 and a gas flow regulating valve 35 are provided at the air intake interface 31.

[0042] Among them, the air inlet interface 31 can be provided with multiple interfaces or valves, so as to introduce one or more mixed gases into the air inlet pipeline 3 to meet the pyrolysis requirements of silicone rubber. The vacuum pressure gauge 32 can monitor the air inlet pressure inside the air inlet pipeline 3, and cooperate with the gas flow meter 34 to monitor the amount of gas introduced into the air inlet pipeline 3, so as to facilitate the adjustment of the opening size of the gas flow regulating valve 35, avoid excessive gas pressure in the air inlet pipeline 3, and control the amount of pyrolysis gas introduced into the air inlet pipeline 3 per unit time, so as to ensure that the pyrolysis gas can contact the catalyst with the highest efficiency, and the silicone rubber can always be in the best pyrolysis recovery efficiency range to avoid waste. The pressure relief valve 33 adopts a solenoid valve with a pressure sensor. When the pressure relief valve 33 detects that the pressure in the pyrolysis pipeline 2 exceeds the set value, it will quickly open the valve to complete the pressure relief to avoid pressure accumulation.

[0043] In some embodiments, the condensation recovery component 4 includes a primary condenser 41, a collector 42 and a secondary condenser 43 which are connected in sequence, the air inlet end of the primary condenser 41 is connected to the tube body 221, and the air outlet end of the secondary condenser 43 is connected to the tail gas emission component 5. In the present invention, after the mixed gas is pyrolyzed in the pyrolysis pipeline 2, it flows into the primary condenser 41, the collector 42 and the secondary condenser 43 in sequence with the carrier gas, and the recyclable components pyrolyzed in the mixed gas are condensed in the primary condenser and the secondary condenser 43 in sequence, and flow into the collector 42 under the action of gravity to be collected. By setting up two condensers, the recyclable components in the mixed gas can be better condensed and collected, thereby improving the efficiency of recycling and reusing silicone rubber, and avoiding excessive recyclable components from entering the tail gas emission component 5 with the carrier gas and being discharged and wasted in the end.

[0044] In some embodiments, the primary condenser 41 includes an air condenser tube, the secondary condenser 43 includes a water-cooled condenser tube, the collector 42 includes a first port, a second port and a third port, the first port is connected to the air condenser tube, the third port is connected to the air inlet of the water-cooled condenser tube, and the second port is provided with a detachable sealing plug 421. Specifically, in this embodiment, the primary condenser 41 uses the air medium to cool and condense the mixed gas, while the secondary condenser 43 uses liquid as the medium to further cool and condense the mixed gas. The secondary condenser 43 is a supplement to the primary condenser 41, and uses a liquid with a higher heat transfer efficiency than air as a cooling medium, which can better improve the recovery efficiency of the recyclable components in the mixed gas and avoid waste. The first port and the third port of the collector 42 are both facing upward. When the recyclable components in the mixed gas are cooled and condensed, they can flow back downward under the action of gravity and drip into the collector 42 to complete the recovery of the recyclable components. The second port on the collector 42 can be used as a sampling port and a recovery port, etc., to facilitate the guidance of the recyclable components in the collector 42 to other storage media or detection equipment.

[0045] In some embodiments, a dewatering component (not shown in the figure) is provided in the air condenser, and the dewatering component is made of a hydrophilic and oleophobic material. The dewatering component in the air condenser can quickly absorb and remove the moisture in the mixed gas after pyrolysis, and avoid excessive condensation of water dripping into the collector 42 to affect the recovery efficiency of the recyclable components. In addition, in addition to the hydrophilic and oleophobic material, the dewatering component can adopt a porous dense structure in terms of appearance and structure, so as to increase the contact area between the dewatering component and the mixed gas as much as possible, so as to more effectively remove the moisture in the mixed gas after pyrolysis.

[0046] In some embodiments, the water-cooled condenser is also provided with a water inlet and a water outlet, and a water-cooled circulation pump 44 and a cold cup 45 are connected in sequence between the water inlet and the water outlet; the cold cup 45 is connected to a refrigeration plate (the refrigeration plate and the cold cup 45 are integrated together, not shown in the figure), and a radiator 451 is provided on the side of the refrigeration plate away from the cold cup 45.

[0047] Specifically, the water-cooled condenser tube is a double-layer structure, the outer tube is provided with a water inlet and a water outlet, and the inner tube is provided with an air inlet and an air outlet. The air outlet of the water-cooled condenser tube is connected to the exhaust gas emission component 5, and the air inlet is connected to the collector 42; the water inlet of the water-cooled condenser tube is connected to the water-cooled circulation pump 44, and the water outlet is connected to the cold cup 45. During the water cooling process, the water-cooled circulation pump 44 draws coolant from the bottom of the cold cup 45 and pumps it between the outer tube and the inner tube from the bottom of the outer tube, and then the coolant flows from the water outlet above the outer tube to the top of the cold cup 45, and the coolant contacts the cooling plate at the bottom of the cold cup 45 to achieve heat exchange, and the setting of the radiator 451 can greatly improve the heat dissipation and heat exchange efficiency of the cooling plate. In addition, in a specific embodiment, the temperature of the coolant flowing between the outer tube and the inner tube of the water-cooled condenser is controlled at 3°C ​​to 5°C, and a temperature sensor is also placed in the cold cup 45 to monitor the temperature in the cold cup 45. In conjunction with the cold cup temperature controller 93, the temperature of the coolant in the cold cup 45 can be stably controlled, thereby controlling the condensation efficiency of the secondary condenser.

[0048] In some embodiments, the exhaust gas emission component 5 includes an anti-backflow bottle 51, an exhaust gas absorption bottle 52 and an activated carbon adsorption tube 53 which are connected in sequence, and the anti-backflow bottle 51 is connected to the gas outlet of the water-cooled condenser.

[0049] Specifically, the exhaust gas generated after the mixed gas after pyrolysis is condensed twice is discharged into the exhaust gas emission component 5, and passes through the backflow suction bottle, the exhaust gas absorption bottle 52 and the activated carbon adsorption tube 53 in sequence. The anti-backflow bottle 51 can prevent the exhaust gas from flowing back into the secondary condenser 43, affecting the recovery efficiency of the recyclable components, and the exhaust gas absorption bottle 52 includes an impact washing bottle filled with a strong alkaline solution, which can treat the acidic substances in the exhaust gas. Finally, some impurities in the exhaust gas will be adsorbed by the activated carbon adsorption tube 53, thereby ensuring that the exhausted exhaust meets the emission standards and reduces environmental pollution.

[0050] In some embodiments, the gas outlet of the water-cooled condenser is connected to a three-way valve 6, the first outlet of the three-way valve 6 is connected to the anti-backflow bottle 51, and the second outlet of the three-way valve 6 is connected to a vacuum pump 7. The vacuum pump 7 is provided to detect whether there is a gas leakage problem in the pipeline of the entire device. When the tail gas is discharged, the inlet of the three-way valve 6 is connected to the first outlet, and the second outlet is closed, which is convenient for the treatment and discharge of the tail gas; when leak detection is performed, the inlet is connected to the second outlet, the first outlet is closed, and the vacuum pump 7 evacuates the inner tube of the secondary condenser 43. When a gas leakage occurs in the pipeline, the leak detector can quickly detect and locate the leak position.

[0051] In some embodiments, the rack is also provided with a control panel 9 and a battery assembly 8; the battery assembly 8 is used to power the electrical equipment in the device; the control panel 9 is provided with a water circulation regulating switch 91, a refrigerator switch 92 and a cold cup temperature controller 93, the water circulation regulating switch 91 is electrically connected to the water cooling circulation pump 44, the refrigerator switch 92 is electrically connected to the cooling plate and the radiator 451, and the cold cup temperature controller 93 is electrically connected to the temperature sensor set in the cold cup 45. Specifically, in this embodiment, the battery assembly 8 can power the electrical equipment such as the water cooling circulation pump 44, the vacuum pump 7, the cooling plate and the control panel 9, and the heating body 1 can be powered by the battery assembly 8, or it can be provided by an external power supply with more stable and continuous power to ensure the continuous progress of the pyrolysis reaction. The various control keys or control modules on the control panel 9 can control the working state of the heating body 1, the water cooling circulation pump 44, the radiator 451 and the vacuum pump 7, so as to meet the high efficiency of the pyrolysis recovery of silicone rubber.

[0052] In addition, in the present invention, various gas pipelines outside the pyrolysis pipeline 2 can be replaced with structures such as glass, stainless steel or polytetrafluoroethylene; a storage box is provided under the frame to store various tools.

[0053] In summary, the embodiment of the present invention provides a silicone rubber catalytic pyrolysis recovery device, in which the pyrolysis gas mixed with the carrier gas enters the pyrolysis pipeline 2 through the air inlet line 3, and after the mixed gas enters the sleeve 21, it is forced to squeeze into the tube body 221 at the constricted portion 222 of the inner tube 22, and the mixed gas is more fully in contact with the catalyst in the constricted portion 222, thereby improving the pyrolysis efficiency of the silicone rubber and the efficiency of generating recyclable components. On this basis, a primary condenser 41 and a secondary condenser 43 are provided in the cooling recovery device, which can more efficiently condense and recover the recyclable components in the mixed gas, thereby further improving the recovery efficiency of the silicone rubber after pyrolysis.

[0054] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A silicone rubber catalytic pyrolysis recovery device, comprising a frame, characterized in that: The rack is provided with a heating device, a pyrolysis device and a cooling recovery device; The heating device comprises a heating body, a middle portion of which is provided with a mounting through hole along a vertical direction, and the mounting through hole is used for mounting the pyrolysis device; The pyrolysis device comprises a pyrolysis pipeline, the pyrolysis pipeline is limited and fixed in the installation through hole, the two ends of the pyrolysis pipeline are respectively connected to the air intake pipeline and the cooling recovery device, the air intake pipeline is used to introduce pyrolysis gas into the pyrolysis pipeline; the pyrolysis pipeline comprises a sleeve and an inner tube, the top end of the sleeve is connected to the air intake pipeline, the inner tube comprises a tube body and a necking portion, the inner diameter of the necking portion gradually decreases from the top to the bottom, the top of the necking portion is sealed and connected to the inner wall of the sleeve, and the bottom of the necking portion is connected to the tube body; The cooling recovery device comprises a condensation recovery component and an exhaust gas emission component, and two ends of the condensation recovery component are respectively connected to the inner tube body and the exhaust gas emission component.

2. The silicone rubber catalytic pyrolysis recovery device according to claim 1, characterized in that: The sleeve and the inner tube are both made of quartz.

3. The silicone rubber catalytic pyrolysis recovery device according to claim 1, characterized in that: The air intake pipeline includes an air intake interface, a vacuum pressure gauge and a pressure relief valve which are connected in sequence. The pressure relief valve is fixed to the frame. One end of the pressure relief valve away from the vacuum pressure gauge is connected to the sleeve. A gas flow meter and a gas flow regulating valve are provided at the air intake interface.

4. The silicone rubber catalytic pyrolysis recovery device according to claim 1, characterized in that: The condensation recovery component includes a primary condenser, a collector and a secondary condenser which are connected in sequence. The air inlet end of the primary condenser is connected to the tube body, and the air outlet end of the secondary condenser is connected to the tail gas emission component.

5. The silicone rubber catalytic pyrolysis recovery device according to claim 4, characterized in that: The first-stage condenser includes an air condenser tube, the second-stage condenser includes a water-cooled condenser tube, the collector includes a first port, a second port and a third port, the first port is connected to the air condenser tube, the third port is connected to the air inlet of the water-cooled condenser tube, and the second port is provided with a removable sealing plug.

6. The silicone rubber catalytic pyrolysis recovery device according to claim 5, characterized in that: A water removal component is arranged in the air condensation tube, and the water removal component is made of a hydrophilic and oleophobic material.

7. The silicone rubber catalytic pyrolysis recovery device according to claim 5, characterized in that: The water-cooled condenser is also provided with a water inlet and a water outlet, and a water-cooled circulation pump and a cold cup are sequentially connected between the water inlet and the water outlet; The cold cup is connected to a cooling fin, and a radiator is arranged on a side of the cooling fin away from the cold cup.

8. The silicone rubber catalytic pyrolysis recovery device according to claim 5, characterized in that: The tail gas emission component comprises an anti-backflow bottle, a tail gas absorption bottle and an activated carbon adsorption tube which are connected in sequence, and the anti-backflow bottle is connected to the gas outlet of the water-cooled condenser.

9. The silicone rubber catalytic pyrolysis recovery device according to claim 8, characterized in that: The air outlet of the water-cooled condenser is connected to a three-way valve, a first outlet of the three-way valve is connected to the anti-back-suction bottle, and a second outlet of the three-way valve is connected to a vacuum pump.

10. The silicone rubber catalytic pyrolysis recovery device according to claim 7, characterized in that: The frame is also provided with a control panel and a battery assembly; The battery assembly is used to supply power to electrical equipment in the device; The control panel is provided with a water circulation regulating switch, a refrigerator switch and a cold cup temperature controller. The water circulation regulating switch is electrically connected to the water cooling circulation pump, the refrigerator switch is electrically connected to the refrigeration plate and the radiator, and the cold cup temperature controller is electrically connected to a temperature sensor arranged in the cold cup.

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