Extraction device and extraction method for extracting industrial fuel oil from waste edible oil

Abstract

The invention belongs to the technical field of waste edible oil recovery, and particularly relates to an extraction device and method for extracting industrial fuel oil from waste edible oil, the extraction device for extracting industrial fuel oil from waste edible oil comprises a shell, a food crushing mechanism, an edible oil separating mechanism and an edible oil heating and converting mechanism are sequentially arranged on the shell from top to bottom; the edible oil heating and converting mechanism comprises a storage box fixedly connected to the lower end of the interior of the shell, a second electric push rod is fixedly connected to the interior of the shell, a piston rod of the second electric push rod is fixedly connected with a top plate capable of vertically sliding in the storage box, and the top plate is fixedly connected with the lower end of a telescopic communicating pipe; a through hole is formed in the position, opposite to the telescopic communicating pipe, of the top plate, and the storage box and the top plate form a heating cavity in the storage box. According to the invention, the fuel oil can be simply extracted from the kitchen garbage, and the heat energy required to be consumed when the fuel oil is extracted is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste cooking oil recycling, and particularly relates to an extraction device and an extraction method for extracting industrial fuel from waste cooking oil. Background Art

[0002] With the rapid development of the global aviation industry, the demand for aviation fuel continues to grow. Traditional aviation fuel mainly relies on fossil fuels. However, waste cooking oil (such as the grease in kitchen waste), as a renewable resource, the technology of converting it into aviation fuel has become a research hotspot. However, existing technologies (such as hydrotreating or transesterification) require high-temperature and high-pressure conditions, and the reaction vessel is fixed. No matter how much the feed amount is, the entire cavity needs to be heated. For example, when treating 500 kg / h of waste grease, it is necessary to maintain a constant temperature in a 5m 3 reactor, resulting in the phenomenon of "using a big horse to pull a small cart", leading to energy waste. Summary of the Invention

[0003] The purpose of the present invention is to provide an extraction device and an extraction method for extracting industrial fuel from waste cooking oil, which can relatively simply extract fuel from kitchen waste and reduce the heat energy consumed during fuel extraction.

[0004] The technical solutions adopted by the present invention are specifically as follows:

[0005] An extraction device for extracting industrial fuel from waste cooking oil, including a housing, on which a food crushing mechanism, an edible oil separation mechanism, and an edible oil heating and conversion mechanism are sequentially arranged from top to bottom;

[0006] The food crushing mechanism is used for crushing kitchen waste;

[0007] The edible oil separation mechanism is used for separating water, oil, and residue in kitchen waste;

[0008] The edible oil heating and conversion mechanism includes a storage tank fixedly connected to the lower end inside the housing. The lower end outside the storage tank is fixedly connected with an oil outlet pipe extending to the outside of the housing, and a valve is fixedly connected to the oil outlet pipe;

[0009] A second electric push rod is fixedly connected inside the housing. The piston rod of the second electric push rod is fixedly connected with a top plate that can slide vertically inside the storage tank. The top plate is connected to the edible oil separation mechanism through a telescopic connecting pipe, and through holes are provided at the positions of the top plate and the telescopic connecting pipe facing each other. A heating cavity is formed inside the storage tank between the storage tank and the top plate;

[0010] A chemical feed pipe is fixedly connected to the housing, and a chemical inlet is provided on the top plate. The chemical feed pipe and the chemical inlet are connected through a hose;

[0011] A heating mechanism is arranged inside the material storage box.

[0012] Furthermore, the food crushing mechanism includes a crushing shell fixedly connected to the upper end of the shell body, the upper end of the crushing shell is fixedly connected to a feed hopper, the interior of the crushing shell is rotatably connected to two horizontally arranged rotating rods, the outer sides of the two rotating rods are fixedly connected to a crushing shaft located inside the crushing shell and a meshing gear located outside the crushing shell, the two meshing gears are meshingly connected, and the outer side of the crushing shell is fixedly connected to a first transmission motor that is transmission-connected to the rotating rod.

[0013] Further, the edible oil separation mechanism includes a filter mesh installed inside the housing and a collecting hopper located at the lower side of the filter mesh, and a food waste discharge port is opened on the left side of the housing, one end of the filter mesh is a discharge end, and the discharge end of the filter mesh passes through the food waste discharge port and extends to the outside of the housing, and the discharge end of the filter mesh is inclined downward;

[0014] The lower end of the collecting hopper is fixedly connected with an oil-water separator, and the oil outlet of the oil-water separator is connected with the edible oil heating conversion mechanism through a telescopic connecting pipe.

[0015] Furthermore, the filter mesh is vertically slidably connected inside the shell, and a vibration applying group is installed on the shell and is transmission-connected to the filter mesh for applying kinetic energy to the filter mesh to make the filter mesh vibrate.

[0016] Furthermore, a material guide plate located above the filter mesh is fixedly connected to the interior of the shell, a material discharge slot is provided between the material guide plate and the inner wall of the shell away from the food waste discharge port, and one end of the material guide plate close to the material discharge slot is inclined downward.

[0017] Furthermore, a magnetic adsorption group is also installed inside the shell, and the magnetic adsorption group includes two rotating circles rotatably connected inside the shell, and the two rotating circles are both located on the upper side of the filter mesh. A third transmission motor is fixedly connected to the shell, and the third transmission motor is transmission-connected to the rotating circle. The outer side of the rotating circle is transmission-connected to a transmission belt body, and the outer side of the transmission belt body is fixedly connected to a plurality of magnet sheets. A scraper located on one side of the transmission belt body is fixedly connected inside the shell, and one side of the scraper is adapted to the magnet sheets. A metal waste discharge port is also provided on one side of the shell, which is located on the upper side of the food waste discharge port. A side edge of the scraper away from the transmission belt body extends to the outside of the shell through the metal waste discharge port, and a discharge plate is fixedly connected to the outside of the shell and located between the food waste discharge port and the metal waste discharge port.

[0018] Further, a sealing ring is fixedly connected to the outside of the top plate. A hollow cavity is formed in a circle inside the sealing ring. An air pump is fixedly connected to the outside of the housing, and the air pump is communicated with the hollow cavity of the sealing ring.

[0019] Further, the heating mechanism includes a vertical rod slidably connected to the top plate. A plurality of mounting plates are assembled on the outside of the vertical rod and located below the top plate. The lowermost mounting plate is fixedly connected to the vertical rod, and the remaining mounting plates are slidably connected to the outside of the vertical rod. A return spring is fixedly connected between two adjacent mounting plates. A heating sheet is fixedly connected to the outside of the mounting plate.

[0020] An extraction method for extracting industrial fuel from waste cooking oil includes the following steps:

[0021] Step 1: Food crushing, crushing kitchen waste through a food crushing mechanism;

[0022] Step 2: Cooking oil separation, separating the crushed kitchen waste through a cooking oil separation mechanism to separate water, oil, and residue in the kitchen waste;

[0023] Step 3: Heating chamber space adjustment, adjusting the volume of the heating chamber according to the amount of cooking oil;

[0024] Step 4: Cooking oil conversion, adding a medicament to the inside of the storage tank and heating it to convert the cooking oil into fuel.

[0025] The technical effects achieved by the present invention are:

[0026] An extraction device and an extraction method for extracting industrial fuel from waste cooking oil according to the present invention can continuously crush and separate kitchen waste through a food crushing mechanism, a cooking oil separation mechanism, and a cooking oil heating and conversion mechanism, and convert the separated cooking oil into fuel. The operation is relatively simple. When converting cooking oil into fuel, by adjusting the height of the heating chamber, the volume of the heating chamber can be matched with the amount of cooking oil entering the inside of the heating chamber, reducing the space to be heated and reducing the heat energy consumed when extracting fuel. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the present invention;

[0028] Figure 2 is a sectional structural diagram of the present invention;

[0029] Figure 3 is a partially enlarged view of the cam of the present invention;

[0030] Figure 4 is a sectional side view of the present invention;

[0031] Figure 5 is the side view of the partial cross-sectional structure of the present invention;

[0032] Figure 6 is the schematic diagram of the partial cross-sectional structure of the present invention;

[0033] Figure 7 is the present invention Figure 6 side view of the structure.

[0034] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0035] 1. housing; 2. waste material housing; 3. feed hopper; 4. rotating rod; 5. crushing shaft; 6. meshing gear; 7. first driving motor; 8. guiding sleeve; 9. filter mesh sheet; 10. food waste discharge port; 11. sliding rod; 12. second driving motor; 13. cam; 14. lower bracket; 15. metal waste discharge port; 16. rotating ring; 17. third driving motor; 18. transmission belt body; 19. magnet sheet; 20. scraper; 21. discharge plate; 22. telescopic connecting pipe; 23. storage tank; 24. hose; 25. vertical rod; 26. mounting plate; 27. return spring; 28. oil-water separator; 29. air pump; 30. second electric push rod; 31. guiding plate; 32. heating sheet; 33. collecting hopper; 34. top plate; 35. sealing ring; 36. oil outlet pipe; 37. valve; 38. reagent feed pipe; 39. infrared ranging instrument. Detailed implementation manners

[0036] In order to make the purpose and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present invention, and does not strictly limit the scope of protection specifically claimed by the present invention.

[0037] As Figures 1 - 7 shown, an extraction device for extracting industrial fuel from waste cooking oil includes a housing 1, and a food crushing mechanism, an edible oil separation mechanism, and an edible oil heating and conversion mechanism are sequentially arranged on the housing 1 from top to bottom;

[0038] Among them, as Figures 1 - 2 shown, the food crushing mechanism is used for crushing kitchen waste.

[0039] The food crushing mechanism includes a crushing shell 2 fixedly connected to the upper end of the shell body 1, and the upper end of the crushing shell 2 is fixedly connected to a feeding hopper 3 to facilitate the feeding of kitchen waste. The inside of the crushing shell 2 is rotatably connected to two horizontally arranged rotating rods 4, and the outer sides of the two rotating rods 4 are fixedly connected to a crushing shaft 5 located inside the crushing shell 2 and a meshing gear 6 located outside the crushing shell 2. The two meshing gears 6 are meshingly connected, and the outer side of the crushing shell 2 is fixedly connected to a first transmission motor 7 that is transmission-connected to the rotating rod 4. By starting the first transmission motor 7, the two crushing shafts 5 can be driven to rotate in the opposite direction. After the kitchen waste containing edible oil enters the inside of the crushing shell 2, the large pieces of garbage in the kitchen waste can be crushed by the crushing shaft 5 to reduce the phenomenon of liquid remaining in the large pieces of garbage.

[0040] like Figures 1 - 5 As shown, the cooking oil separation mechanism is used to separate water, oil and residues in kitchen waste;

[0041] Specifically, the edible oil separation mechanism includes a filter mesh 9 installed inside the shell 1 and a collecting hopper 33 located at the lower side of the filter mesh 9. The filter mesh 9 can perform solid-liquid separation and filter the residue in the liquid. A food waste discharge port 10 is opened on the left side of the shell 1. One end of the filter mesh 9 is the discharge end, and the discharge end of the filter mesh 9 passes through the food waste discharge port 10 and extends to the outside of the shell 1. At the same time, the discharge end of the filter mesh 9 is tilted downward. Under the tilting effect of the filter mesh 9, the residue on the upper side of the filter mesh 9 can be discharged through the food waste discharge port 10 under the action of gravity.

[0042] At the same time, the filter mesh 9 can be fixedly connected to the inside of the housing 1, or can be vertically slidably connected to the inside of the housing 1. In the present technical solution, the filter mesh 9 is preferably vertically slidably connected to the inside of the housing 1. Figures 4 - 5 As shown, a guide sleeve 8 is fixedly connected to the inner wall of the shell 1, and a slide rod 11 is vertically slidably connected inside the guide sleeve 8. The upper end of the slide rod 11 is fixedly connected to the filter mesh 9. The filter mesh 9 is installed inside the shell 1 through the guide sleeve 8 and the slide rod 11, so that the filter mesh 9 can slide vertically inside the shell 1.

[0043] like Figures 1 - 4 As shown, a vibration applying group is installed on the shell 1 and is transmission-connected to the filter mesh 9, which is used to apply kinetic energy to the filter mesh 9 so that the filter mesh 9 vibrates. For example, the vibration applying group includes a second transmission motor 12 fixedly connected to the outside of the shell 1, and the output end of the second transmission motor 12 is fixedly connected to a cam 13 located on the lower side of the filter mesh 9. When the filter mesh 9 drives the cam 13 to rotate, upward kinetic energy can be repeatedly applied to the filter mesh 9 to cause it to vibrate. The lower side of the filter mesh 9 can also be fixedly connected to a lower bracket 14 opposite to the cam 13 to reduce direct contact damage to the filter mesh 9 applied by the cam 13.

[0044] In order to make the centralized feeding of kitchen waste be at a position above the filter mesh 9 and far from the food waste discharge port 10, a guide plate 31 located above the filter mesh 9 is fixedly connected inside the housing 1. A blanking notch is formed between the guide plate 31 and the inner wall of the housing 1 far from the food waste discharge port 10. One end of the guide plate 31 close to the blanking notch is inclined downward, so that the kitchen waste flows along the slope of the guide plate 31 to the upper side of the filter mesh 9.

[0045] Meanwhile, as Figure 2 and Figures 4 - 5 shown, a magnetic adsorption group for magnetically separating residues on the upper side of the filter mesh 9 can also be installed inside the housing 1. The magnetic adsorption group includes two rotating rings 16 rotatably connected inside the housing 1. Both of the two rotating rings 16 are located on the upper side of the filter mesh 9. A third driving motor 17 is fixedly connected to the housing 1. The third driving motor 17 is in transmission connection with the rotating ring 16 for driving the rotating ring 16 to rotate. A transmission belt body 18 is in transmission connection with the outer side of the rotating ring 16. A plurality of magnet pieces 19 are fixedly connected to the outer side of the transmission belt body 18. When the rotating ring 16 drives the transmission belt body 18 to perform a rotating action, the vibrating kitchen waste can be magnetically adsorbed by the magnet pieces 19, and the metal objects in the kitchen waste are magnetically adsorbed, so that the metal waste is adsorbed on the magnet pieces 19. A scraper 20 is fixedly connected inside the housing 1 on one side of the transmission belt body 18. One side of the scraper 20 is adapted to the magnet pieces 19 for blocking and separating the metal adsorbed on the magnet pieces 19. A metal waste discharge port 15 is also formed on one side of the housing 1 above the food waste discharge port 10. The side edge of the scraper 20 far from the transmission belt body 18 extends to the outside of the housing 1 through the metal waste discharge port 15, so that the discharge of the metal objects can be completed through the metal waste discharge port 15. An outlet plate 21 is fixedly connected to the outside of the housing 1 between the food waste discharge port 10 and the metal waste discharge port 15, and the discharge position of the metal objects can be adjusted through the outlet plate 21.

[0046] The liquid filtered by the filter mesh 9 will enter the inside of the aggregate hopper 33. In order to separate oil and water in the liquid, an oil-water separator 28 is fixedly connected to the lower end of the aggregate hopper 33. The oil-water separator 28 is preferably a hydrocyclone. The oil-water separator 28 separates the oil and water in the liquid and discharges them respectively through the water outlet and the oil outlet provided on the oil-water separator 28. The water outlet of the oil-water separator 28 directly discharges the separated water to the outside of the housing 1. The oil outlet of the oil-water separator 28 is communicated with the edible oil heating and conversion mechanism through a telescopic connecting pipe 22, and the edible oil discharged from the oil outlet is directly conveyed into the edible oil heating and conversion mechanism.

[0047] As Figure 2 、 Figure 4 and Figures 6 - 7As shown, the cooking oil heating and conversion mechanism in this technical solution includes a storage tank 23 fixedly connected to the lower end inside the housing 1. The lower end outside the storage tank 23 is fixedly connected with an oil outlet pipe 36 extending to the outside of the housing 1. A valve 37 is fixedly connected to the oil outlet pipe 36. After the valve 37 is opened, discharging can be carried out.

[0048] A second electric push rod 30 is fixedly connected inside the housing 1. The piston rod of the second electric push rod 30 is fixedly connected with a top plate 34 that can slide vertically inside the storage tank 23. The top plate 34 is fixedly connected to the lower end of the telescopic connecting pipe 22. Through holes are provided at the relative positions of the top plate 34 and the telescopic connecting pipe 22, so that the cooking oil discharged from the telescopic connecting pipe 22 can enter the inside of the storage tank 23. An electromagnetic valve can be installed between the telescopic connecting pipe 22 and the top plate 34 for sealing after the feeding is completed. The storage tank 23 and the top plate 34 form a sealed heating cavity inside the storage tank 23. By adjusting the height of the top plate 34 through the second electric push rod 30, the height of the heating cavity can be adjusted, so that the volume of the heating cavity can match the quantity of the cooking oil entering the heating cavity, reducing the space that needs to be heated and lowering the thermal energy consumed when heating the cooking oil.

[0049] To ensure the sealing performance, a sealing ring 35 is fixedly connected to the outside of the top plate 34. To reduce the wear of the sealing ring 35, a hollow cavity is provided inside the sealing ring 35. An air pump 29 is fixedly connected to the outside of the housing 1. The air pump 29 is connected to the hollow cavity of the sealing ring 35. When moving the top plate 34, the air pressure of the sealing ring 35 is reduced through the air pump 29, so that the sealing ring 35 shrinks, creating a gap with the storage tank 23, and thus the wear during the movement of the sealing ring 35 can be reduced. After the movement is completed, the sealing ring 35 is inflated, so that the sealing ring 35 expands, reducing the gap between the sealing ring 35 and the storage tank 23 and ensuring the sealing performance.

[0050] As Figure 7 shown, a medicament feeding pipe 38 is fixedly connected to the housing 1. A medicament inlet is provided on the top plate 34. The medicament feeding pipe 38 and the medicament inlet are connected through a flexible pipe 24 for adding medicament into the storage tank 23. The medicament can be a mixed slurry of sodium tetramethoxyborate NaB(OMe)4 and methanol;

[0051] A heating mechanism is arranged inside the storage tank 23 to heat the cooking oil inside the storage tank 23 after the medicament is added. The transesterification can be completed by reacting at 80 °C for 1 hour, and the cooking oil can be converted into fuel.

[0052] Specifically, the heating mechanism includes a vertical rod 25 slidably connected to the top plate 34. A plurality of mounting plates 26 are assembled on the outer side of the vertical rod 25 and located below the top plate 34. The lowermost mounting plate 26 is fixedly connected to the vertical rod 25, and the remaining mounting plates 26 are slidably connected to the outer side of the vertical rod 25. A return spring 27 is fixedly connected between two adjacent mounting plates 26. At this time, when the top plate 34 slides vertically, the lower end of the vertical rod 25 abuts against the lower inner wall of the storage tank 23. The moving top plate 34 will squeeze the return spring 27, causing the mounting plates 26 to be automatically evenly distributed under the elastic thrust of the return spring 27. A heating sheet 32 is fixedly connected to the outer side of the mounting plate 26. When the heating sheets 32 are evenly distributed inside the storage tank 23, the edible oil inside the storage tank 23 can be heated more evenly.

[0053] Meanwhile, an infrared ranging instrument 39 can also be fixedly connected to the top plate 34 for detecting the liquid level height inside the storage tank 23.

[0054] An extraction method for extracting industrial fuel from waste edible oil includes the following steps:

[0055] Step 1: Food crushing, crushing kitchen waste through a food crushing mechanism;

[0056] Specifically, in Step 1, the kitchen waste is fed into the crushing shell 2 through the feed hopper 3. By starting the first drive motor 7, the two crushing shafts 5 can be driven to rotate in opposite directions. After the kitchen waste containing edible oil enters the crushing shell 2, the large pieces of waste in the kitchen waste can be crushed by the crushing shafts 5.

[0057] Step 2: Edible oil separation, separating the crushed kitchen waste through an edible oil separation mechanism to separate water, oil, and residues in the kitchen waste;

[0058] Specifically, in Step 2, the crushed kitchen waste is filtered through the filter mesh 9, so that the residues in the kitchen waste fall on the filter mesh 9. After the liquid passes through the filter mesh 9, it will enter the aggregate hopper 33 and then fall into the oil-water separator 28. The oil-water separator 28 separates the oil and water in the liquid and discharges them through the water outlet and oil outlet provided on the oil-water separator 28 respectively. The water outlet of the oil-water separator 28 directly discharges the separated water to the outside of the housing 1, and the edible oil discharged from the oil outlet of the oil-water separator 28 is directly transported into the edible oil heating and conversion mechanism.

[0059] Step 3: Heating chamber space adjustment, adjusting the volume of the heating chamber according to the quantity of edible oil.

[0060] Specifically, in step three, the height of the top plate 34 is adjusted by the second electric push rod 30 to adjust the height of the heating chamber, so that the volume of the heating chamber can match the amount of edible oil entering the heating chamber, reducing the space to be heated.

[0061] Step four: Edible oil conversion. Add a reagent to the inside of the storage tank 23 and heat it to convert the edible oil into fuel oil.

[0062] Specifically, in step four, add the reagent to the inside of the storage tank 23 through the reagent feed pipe 38, then start the heating mechanism to heat the edible oil until the edible oil is converted into fuel oil, and then discharge the material.

[0063] In summary, through the setting of the food crushing mechanism, the edible oil separation mechanism, and the edible oil heating and conversion mechanism, this technical solution can continuously crush and separate kitchen waste, and convert the separated edible oil into fuel oil. The operation is relatively simple. When converting the edible oil into fuel oil, by adjusting the height of the heating chamber, the volume of the heating chamber can match the amount of edible oil entering the heating chamber, reducing the space to be heated and the heat energy consumed when extracting fuel oil.

[0064] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specifically stated and limited, are implemented according to the conventional means in the art.

Claims

1. An extraction device for extracting industrial fuel from waste cooking oil, characterized in that: It comprises a housing (1), on which a food crushing mechanism, an edible oil separation mechanism, and an edible oil heating conversion mechanism are arranged in order from top to bottom; The food crushing mechanism is used to crush the kitchen waste; The cooking oil separation mechanism is used to separate water, oil and residues in kitchen waste; The edible oil heating and conversion mechanism comprises a material storage box (23) fixedly connected to the lower end of the interior of the housing (1); the lower end of the exterior of the material storage box (23) is fixedly connected to an oil outlet pipe (36) extending to the exterior of the housing (1); and a valve (37) is fixedly connected to the oil outlet pipe (36); A second electric push rod (30) is fixedly connected to the interior of the housing (1); a piston rod of the second electric push rod (30) is fixedly connected to a top plate (34) that can slide vertically inside the material storage box (23); the top plate (34) is connected to the edible oil separation mechanism through a telescopic connecting pipe (22); and through holes are provided at positions where the top plate (34) and the telescopic connecting pipe (22) are opposite to each other; the material storage box (23) and the top plate (34) form a heating chamber inside the material storage box (23); The housing (1) is fixedly connected with a medicine feed pipe (38), the top plate (34) is provided with a medicine feed port, and the medicine feed pipe (38) and the medicine feed port are connected via a hose (24); A heating mechanism is arranged inside the material storage box (23).

2. The device for extracting industrial fuel from waste cooking oil according to claim 1, characterized in that: The food crushing mechanism comprises a crushing shell (2) fixedly connected to the upper end of a shell body (1); the upper end of the crushing shell (2) is fixedly connected to a feed hopper (3); the crushing shell (2) is internally rotatably connected to two horizontally arranged rotating rods (4); the outer sides of the two rotating rods (4) are fixedly connected to a crushing shaft (5) located inside the crushing shell (2) and a meshing gear (6) located outside the crushing shell (2); the two meshing gears (6) are meshingly connected; the outer side of the crushing shell (2) is fixedly connected to a first transmission motor (7) which is transmission-connected to the rotating rod (4).

3. The device for extracting industrial fuel from waste cooking oil according to claim 1, characterized in that: The edible oil separation mechanism comprises a filter mesh (9) installed inside the housing (1) and a collecting hopper (33) located below the filter mesh (9), and a food waste discharge port (10) is provided on the left side of the housing (1), one end of the filter mesh (9) is a discharge end, and the discharge end of the filter mesh (9) passes through the food waste discharge port (10) and extends to the outside of the housing (1), and the discharge end of the filter mesh (9) is inclined downward; The lower end of the collecting hopper (33) is fixedly connected to an oil-water separator (28), and the oil outlet of the oil-water separator (28) is connected to the edible oil heating and conversion mechanism through a telescopic connecting pipe (22).

4. The device for extracting industrial fuel from waste cooking oil according to claim 3, characterized in that: The filter mesh (9) is vertically slidably connected inside the housing (1), and a vibration applying group is installed on the housing (1) and is transmission-connected to the filter mesh (9) for applying kinetic energy to the filter mesh (9) so that the filter mesh (9) vibrates.

5. The device for extracting industrial fuel oil from waste cooking oil according to claim 4, characterized in that: The vibration applying group comprises a second transmission motor (12) fixedly connected to the outside of the housing (1), and the output end of the second transmission motor (12) is fixedly connected to a cam (13) located at the lower side of the filter mesh (9).

6. The device for extracting industrial fuel from waste cooking oil according to claim 4, characterized in that: A material guide plate (31) located above the filter mesh (9) is fixedly connected to the interior of the shell (1), and a material discharge slot is provided between the material guide plate (31) and the inner wall of the shell (1) away from the food waste discharge port (10), and one end of the material guide plate (31) close to the material discharge slot is inclined downward.

7. The device for extracting industrial fuel oil from waste cooking oil according to claim 4, characterized in that: A magnetic adsorption group is also installed inside the shell (1), and the magnetic adsorption group includes two rotating circles (16) rotatably connected inside the shell (1), and the two rotating circles (16) are both located on the upper side of the filter mesh (9). A third transmission motor (17) is fixedly connected to the shell (1), and the third transmission motor (17) and the rotating circle (16) are transmission-connected. The outer side of the rotating circle (16) is transmission-connected to a transmission belt body (18), and the outer side of the transmission belt body (18) is fixedly connected to a plurality of magnet pieces (19). The inner side of the shell (1) A scraper (20) is fixedly connected to one side of the transmission belt body (18), one side of the scraper (20) is matched with the magnetic sheet (19), one side of the shell (1) is also provided with a metal waste discharge port (15) located on the upper side of the food waste discharge port (10), the side edge of the scraper (20) away from the transmission belt body (18) extends to the outside of the shell (1) through the metal waste discharge port (15), and a discharge plate (21) is fixedly connected to the outside of the shell (1) and located between the food waste discharge port (10) and the metal waste discharge port (15).

8. The device for extracting industrial fuel from waste cooking oil according to claim 1, characterized in that: A sealing ring (35) is fixedly connected to the outer side of the top plate (34), a hollow cavity is provided inside the sealing ring (35), an air pump (29) is fixedly connected to the outer side of the shell (1), and the air pump (29) and the hollow cavity of the sealing ring (35) are in communication.

9. The device for extracting industrial fuel oil from waste cooking oil according to claim 1, characterized in that: The heating mechanism comprises a vertical rod (25) vertically slidably connected to a top plate (34); a plurality of mounting plates (26) located on the lower side of the top plate (34) are mounted on the outer side of the vertical rod (25); the mounting plate (26) located on the lower side is fixedly connected to the vertical rod (25); the remaining mounting plates (26) are slidably connected to the outer side of the vertical rod (25); a return spring (27) is fixedly connected between two adjacent mounting plates (26); and a heating plate (32) is fixedly connected to the outer side of the mounting plate (26).

10. A method for extracting industrial fuel oil from waste edible oil, using the extraction device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Food crushing: crushing the food waste through the food crushing mechanism; Step 2: edible oil separation, separating the crushed kitchen waste through an edible oil separation mechanism to separate water, oil and residue from the kitchen waste; Step 3: Adjust the space of the heating chamber, and adjust the volume of the heating chamber according to the amount of cooking oil; Step 4: edible oil conversion, adding a reagent to the inside of the storage box (23) and heating it to convert the edible oil into fuel oil.

Images