Propolis extraction device and extraction method

Abstract

The application relates to the technical field of propolis principle breaking and extracting, in particular to a propolis extracting equipment which comprises a tank body, a breaking device is arranged at the upper portion of the tank body, a solution for dissolving propolis is arranged in the tank body, the breaking device comprises a shell, a first rolling roller, a second rolling roller, a strip forming roller and a cutting roller, the upper portion of the shell is formed with a connecting edge, the shell is fixed at the opening of the tank body through the connecting edge, the lower portion of the shell is formed with an inclined surface, the inclined surface is arranged to be inclined to the axis of the tank body, the first rolling roller, the second rolling roller, the strip forming roller and the cutting roller are sequentially arranged from top to bottom along the inclined direction of the inclined surface, the distance between the side of the first rolling roller, the second rolling roller and the strip forming roller close to the inclined surface and the inclined surface gradually decreases, a plurality of annular grooves are arranged in the strip forming roller along the direction of the axis, and a plurality of cutters are arranged in the side wall of the cutting roller in the circumferential direction. The application has the effect that the particle size of propolis raw materials can be controlled in the breaking process.

Description

Technical Field

[0001] This application relates to the technical field of propolis extraction based on the principle of crushing, and in particular to a propolis extraction device and extraction method. Background Technology

[0002] Propolis is a fragrant, viscous solid substance obtained by bees from the resin of plant buds or tree trunks, mixed with secretions from the salivary and wax glands. During extraction, the raw propolis material is first crushed, as it contains impurities. It is then mixed with edible ethanol, with the ethanol weighing at least four times the weight of the raw propolis material. This allows the active ingredients of the propolis to dissolve in the ethanol. After filtration to remove impurities, the ethanol is evaporated to form propolis. Propolis begins to melt and become viscous when the temperature reaches 50°C.

[0003] Patent application CN117983356A discloses a propolis raw material pulverizing device, including a pulverizing chamber and a pulverizing mechanism installed inside the pulverizing chamber. The pulverizing mechanism is provided with a preliminary crushing component and a grinding component from top to bottom. The preliminary crushing component includes two crushing rollers, both of which are horizontally arranged and their axial direction is consistent with the width direction of the pulverizing chamber. The grinding component includes two grinding rollers, both of which are horizontally arranged and their axial direction is consistent with the width direction of the pulverizing chamber. The two crushing rollers first perform preliminary pulverization of the propolis raw material, and then the grinding rollers perform a further grinding of the propolis raw material.

[0004] However, the crushing and grinding rollers may break down impurities in the propolis raw material, making them difficult to remove during filtration and increasing the difficulty of propolis purification. Summary of the Invention

[0005] In order to control the particle size of propolis raw materials during the crushing process, this application provides a propolis extraction device and extraction method.

[0006] This application provides a propolis extraction device and extraction method, adopting the following technical solution: A propolis extraction device includes a tank, with a crushing device on the upper part of the tank. The tank contains a solution for dissolving propolis. The crushing device includes a shell, a first crushing roller, a second crushing roller, a strip-forming roller, and a cutting roller. A connecting edge is formed on the upper part of the shell, which is fixed to the opening of the tank via the connecting edge. An inclined surface is formed on the lower part of the shell, and the inclined surface is inclined to the axis of the tank. The first crushing roller, the second crushing roller, the strip-forming roller, and the cutting roller are arranged sequentially from top to bottom along the inclined direction of the inclined surface, and the distance between the first crushing roller, the second crushing roller, and the strip-forming roller and the inclined surface gradually decreases on the side closest to the inclined surface. The strip-forming roller has multiple annular grooves spaced along the axial direction, and the cutting roller has multiple cutters spaced circumferentially on its sidewall. The first crushing roller, the second crushing roller, the strip-forming roller, and the cutting roller are located above the inclined surface. A cover is provided at the opening of the tank.

[0007] By adopting the above technical solution, the connecting edge at the top of the shell is located at the opening of the tank. The propolis raw material put into the tank will first enter the shell and pass through the first crushing roller, the second crushing roller, the strip forming roller and the cutting roller in sequence, and fall to the inclined surface. When passing through the first crushing roller and the second crushing roller, it gradually forms a cake shape. Then it passes through the strip forming roller with annular grooves, so that the propolis raw material becomes strip shape. When it passes through the cutting roller with cutter, the propolis raw material is in granular form. The particle size of the formed granular propolis raw material is controlled by the interval of the annular groove and the interval of the cutter, so as to reduce the crushing of impurities. In order to facilitate subsequent filtration, since a propolis solution is added into the tank, when the cover presses on one side of the connecting edge, the propolis raw material can be put into the shell at the same time, so that dissolution and crushing occur simultaneously.

[0008] Preferably, a filter device is provided inside the tank and below the crushing device. The filter device includes a sliding frame, a drive screw, and a filter screen. The sliding frame is slidably fitted on the inner wall of the tank. The drive screw is rotatably connected to the top of the tank and is vertically arranged. The drive screw is threadedly connected to the sliding frame. The filter screen is installed on the sliding frame.

[0009] Preferably, a transfer tank is provided outside the tank body, and a pump is provided between the transfer tank and the tank body. The inlet of the pump is connected to two inlet pipes, and a first solenoid valve is installed on each of the two inlet pipes. The ends of the two inlet pipes away from the pump are respectively connected to the bottom of the tank body and the bottom of the transfer tank. The outlet of the pump is connected to two outlet pipes, and a second solenoid valve is installed on each of the two outlet pipes. The ends of the two outlet pipes away from the pump are respectively connected to the top of the tank body and the bottom of the transfer tank.

[0010] Preferably, the tank body includes an upper body and a lower body, the lower body is detachably connected to the lower end of the upper body, and the opening of the upper body communicates with the lower opening of the lower body, and the outlet pipe connected to the bottom of the tank body is located at the bottom of the lower body.

[0011] Preferably, a rotating shaft is provided on one side of the lower body and is rotatably connected to the upper body through the rotating shaft. The rotating shaft is fixedly connected to the lower body. The rotating shaft is connected to a worm gear reducer. The input shaft of the worm gear reducer is connected to a drive motor. A scraping device is installed on the lower body.

[0012] Preferably, the scraping device includes an intermediate shaft and a scraper. The intermediate shaft is rotatably connected to the lower body, the scraper is fixed on the intermediate shaft and is disposed against the inner wall of the lower body, and an agitator motor is fixedly disposed on the lower body to drive the intermediate shaft to rotate.

[0013] Preferably, the tank is provided with an agitation device, which includes an agitation shaft, agitation blades and a shaft seat. The shaft seat is fixed on a sliding frame. The upper end of the agitation shaft is rotatably connected to the shaft seat. The lower end of the agitation shaft passes through the filter screen and is connected to the upper end of the intermediate shaft through a slot. The agitation blades are fixed on the agitation shaft and located above the filter screen.

[0014] Preferably, the filter screen includes a screen frame and a screen body. The lower part of the sliding frame is provided with a step. The screen body is fixed on the screen frame. The screen frame is located inside the step and is threadedly connected to the inner wall of the step. A sealing gasket is provided between the bottom of the step and the screen frame.

[0015] Preferably, the tank is externally connected to a vacuum pump for depressurizing the inside of the tank.

[0016] This application also provides a method for extracting propolis, employing the following technical solution: A method for extracting propolis includes using a propolis extraction device to extract propolis, comprising first crushing the propolis, and then adding ethanol into a container to dissolve the propolis in the ethanol.

[0017] In summary, this application has at least one of the following beneficial technical effects: 1. The internal filtration device of the tank includes a sliding frame, a drive screw, and a filter screen. The filter screen and the sliding frame can move up and down under the action of the drive screw. The propolis raw material on the filter screen can be dissolved at different depths in the solution. At the same time, the filter screen can be separated from the propolis in the solution during the propolis extraction process to reduce the amount of propolis with excessive viscosity adhering to the filter screen. 2. The can consists of an upper body and a lower body. After the ethanol in the can evaporates, the remaining propolis in the can is in the lower body. The lower body is opened from the upper body to pour out the propolis in the lower body. The scraping device set on the lower body can clean the inner wall of the lower body. 3. The stirring device includes a stirring shaft, stirring blades, and a shaft seat. When the sliding frame moves the shaft seat to the lower part of the upper body, the stirring shaft can engage with the intermediate shaft of the scraping device, and then the stirring shaft and the intermediate shaft rotate simultaneously. The solution is stirred simultaneously by the scraper and the stirring blades, thereby improving the dissolution efficiency of propolis.

[0018] 4. First, the propolis raw material is crushed by a crushing device, then dissolved in ethanol, and the solution is cooled and sent into a transfer tank. The solution is then pumped into the tank and filtered to remove beeswax and impurities. After removing the filter screen, the solution is heated and purified in the tank to obtain propolis, allowing the tank to be used efficiently in the propolis processing.

[0019] 5. A filter screen is installed at the bottom of the sliding frame. When the filter screen needs to be replaced, the lower body can be opened from below to lower the filter screen to the opening of the upper body, and then the filter screen can be removed from the sliding frame. The operation is relatively convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram showing the location of the crushing device in an embodiment of this application; Figure 3 This is a schematic diagram showing the location of the filtering device in an embodiment of this application; Figure 4 This is a schematic diagram of the connection structure between the stirring device and the scraping device in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the crushing device for cutting open the shell in an embodiment of this application.

[0021] Explanation of reference numerals in the attached drawings: 1. Tank body; 11. Upper body; 12. Lower body; 13. Rotating shaft; 14. Drive motor; 15. Worm gear reducer; 16. Water channel; 17. Water pipe; 2. Crushing device; 21. Shell; 211. Connecting edge; 212. Inclined surface; 22. First crushing roller; 23. Second crushing roller; 24. Sliver forming roller; 241. Annular groove; 25. Cutting roller; 251. Cutter; 26. Drive wheel; 27. Transmission belt; 28. Electric motor; 3. Agitator; 31. Agitating shaft; 311. Slot; 32. Agitating blade; 33. Shaft seat 4. Cover; 41. Connecting rod; 42. Locking screw; 5. Transfer tank; 51. Pump; 52. Inlet pipe; 53. First solenoid valve; 54. Outlet pipe; 55. Second solenoid valve; 6. Vacuum pump; 7. Filter device; 71. Sliding frame; 711. Step; 72. Drive screw; 73. Filter screen; 731. Frame; 732. Screen body; 74. Power component; 75. Sealing gasket; 8. Locking device; 81. Locking screw; 82. Nut; 83. Connecting lug; 9. Scraping device; 91. Scraper; 92. Intermediate shaft; 93. Protrusion; 94. Agitator motor. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0023] This application discloses a propolis extraction device, as shown in the following embodiments. Figure 1 and Figure 2 The system includes a tank 1, with a crushing device 2 located inside and at the top of the tank 1, and an agitator 3 located at the bottom of the tank 1. The crushing device 2 can be removed from the opening at the top of the tank 1. A cover 4 is provided at the opening at the top of the tank 1 to seal the tank 1 and fix the crushing device 2. A transfer tank 5 is provided outside the tank 1 for temporary storage of the solution inside the tank 1. A vacuum pump 6 is also provided outside the tank 1, connected to the top of the tank 1, to evacuate air from the inside of the tank 1 and reduce the internal pressure. In use, propolis raw material is added to the crushing device 2 from the position of the tank 1. The propolis raw material is crushed by the crushing device 2 and falls into the tank 1. Edible ethanol is then added to the tank 1 to dissolve the propolis in the ethanol, and the agitator 3 increases the dissolution rate.

[0024] A filter device 7 is installed inside the tank 1 and below the crushing device 2. The filter device 7 is used to filter impurities in the tank 1. A pump 51 is installed between the tank 1 and the transfer tank 5. The inlet of the pump 51 is connected to two inlet pipes 52, and a first solenoid valve 53 is installed at the end of the inlet pipes 52 away from the pump 51. The two inlet pipes 52 are respectively connected to the bottom of the tank 1 and the bottom of the transfer tank 5. The outlet of the pump 51 is connected to two outlet pipes 54. A second solenoid valve 55 is connected at the end of the outlet pipes 54 near the pump 51. The two outlet pipes 54 are respectively connected to the bottom of the transfer tank 5 and the top of the tank 1. When it is necessary to send liquid from the tank 1 into the transfer tank 5, the inlet pipe 52 connected to the bottom of the tank 1 and the outlet pipe 54 connected to the transfer tank 5 are opened; when it is necessary to send liquid from the transfer tank 5 into the tank 1, the inlet pipe 52 connected to the transfer tank 5 and the outlet pipe 54 connected to the top of the tank 1 are opened.

[0025] The container 1 includes an upper body 11 and a lower body 12. The upper body 11 is cylindrical, and the lower body 12 is connected to the lower end of the upper body 11. The lower body 12 can be opened from below the upper body 11. After the propolis is extracted from inside the container 1, the amount of propolis is less than the volume of the lower body 12. The opening of the lower body 12 is connected to the lower end of the upper body 11. Since the formed propolis is inside the lower body 12, opening the lower body 12 allows the propolis to be poured out of the container 1. Because propolis is viscous, it is easier to remove the propolis from the opened lower body 12. One side of the lower body 12 is rotatably connected to the upper body 11 via a rotating shaft 13. The rotating shaft 13 is located outside the lower body 12, and a drive motor 14 is connected to the rotating shaft 13. A worm gear reducer 15 is installed between the drive motor 14 and the rotating shaft 13. The input shaft of the drive motor 14 and the worm gear reducer 15 are coaxially fixed, and the rotating shaft 13 is coaxially fixed with the output shaft of the worm gear reducer 15. This allows the drive motor 14 to reduce speed through the worm gear reducer 15 and rotate the rotating shaft 13. The rotating shaft 13 is fixedly connected to the lower body 12, thereby enabling the lower body 12 to rotate relative to the upper body 11. When the drive motor 14 drives the lower body 12 to rotate, the lower body 12 can be opened or closed from the upper body 11. Meanwhile, a locking device 8 is provided on the side of the lower body 12 away from the rotating shaft 13. The locking device 8 includes a locking screw 81 with a nut 82 threaded onto it. A connecting lug 83 is fixedly provided on the upper body 11. The locking screw 81 can rotate onto the connecting lug 83, and then the nut 82 is tightened to abut against the connecting lug 83, thereby further fixing the lower body 12. Loosening the locking device 8 allows the lower body 12 to rotate and open to pour out the propolis inside. The inlet pipe 52 connected to the bottom of the tank 1 is located at the lower part of the lower body 12 and is a flexible hose to facilitate the rotation of the lower body 12 relative to the upper body 11.

[0026] The side wall of the upper body 11 is configured as two layers, with a water channel 16 formed between the two layers. The water channel 16 is connected to a water pipe 17, and a medium is added into the water channel 16 through the water pipe 17. When it is necessary to heat the upper body 11, a hot medium can be introduced into the water channel 16. The hot medium can be hot water at 50-60℃. When it is necessary to cool the upper body 11, a cold medium can be introduced into the water channel 16. The cold medium can be cold water at 3-6℃. When a hot medium passes through the water channel 16, the inner layer of the upper body 11 heats the solution in the tank 1, causing the ethanol containing propolis in the tank 1 to evaporate. At the same time, the vacuum pump 6 discharges the ethanol from the tank 1, concentrating the propolis solution in the tank 1. When a cold medium passes through the water channel 16, the inner layer of the upper body 11 absorbs heat from the solution in the tank 1, cooling the solution and causing some impurities in the solution, such as beeswax, to crystallize. The solution then passes through the transfer tank 5 before being sent into the tank 1, where it is filtered from top to bottom by the filter device 7 to remove beeswax and impurities, thereby purifying the propolis.

[0027] refer to Figure 3 and Figure 4 The filter device 7 includes a sliding frame 71, a drive screw 72, and a filter screen 73. The sliding frame 71 is generally annular and slides against the inner wall of the upper body 11. The upper inner side of the sliding frame 71 has a chamfer to facilitate the cleaning of debris adhering to the inner wall of the upper body 11 when the sliding frame 71 slides upward. The drive screw 72 is vertically arranged and rotatably connected to the top of the tank 1. A power component 74 for driving the drive screw 72 to rotate is fixedly arranged on the top of the tank 1. The power component 74 can be a motor. When the power component 74 drives the drive screw 72 to rotate, the sliding frame 71 slides vertically inside the upper body 11. The filter screen 73 is connected to the sliding frame 71. The filter screen 73 includes a frame 731 and a screen body 732. The frame 731 supports the screen body 732 and is connected to the sliding frame 71. A step 711 is provided at the lower part of the sliding frame 71, so that the outer ring of the filter screen 73 is fixed on the step 711. The outer ring of the filter screen 73 can be threaded to the inner wall of the step 711, or a bolt can be used to fix the filter screen 73 to the sliding frame 71. At the same time, a sealing gasket 75 is provided between the bottom of the step 711 and the outer ring of the filter screen 73 to seal the filter screen 73 and the sliding frame 71. Since the filter screen 73 is fixed at the lower part of the sliding frame 71, when there are impurities on the filter screen 73 that need to be removed, the solution in the tank 1 can be sent into the transfer tank 5 first, then the lower body 12 can be opened, so that the sliding frame 71 can be lowered to the lower opening of the upper body 11, and then the filter screen 73 can be rotated to remove it.

[0028] The stirring device 3 includes a stirring shaft 31, stirring blades 32, and a shaft seat 33. The shaft seat 33 is mounted on a sliding frame 71 and is fixedly connected to the sliding frame 71 via a rod, ensuring that the center of the shaft seat 33 coincides with the center of the tank body 1. The stirring shaft 31 is rotatably connected to the shaft seat 33, and the lower end of the stirring shaft 31 passes through a filter screen 73, allowing the screen frame 731 of the filter screen 73 to be fitted onto the stirring shaft 31. The filter screen 73 can be removed directly from the stirring shaft 31 during disassembly. A scraping device 9 is connected to the lower end of the stirring shaft 31. The rotation of the scraping device 9 drives the stirring shaft 31, and the scraping device 9 also stirs the solution below the filter screen 73. The stirring blades 32 are fixed to the stirring shaft 31. When the scraping device 9 drives the stirring shaft 31 to rotate, the stirring blades 32 stir the solution above the filter screen 73, making it easier for the propolis raw material to mix and dissolve in the solution during the stirring process.

[0029] The scraping device 9 includes two scrapers 91 and an intermediate shaft 92. The intermediate shaft 92 is rotatably connected to the lower body 12 and is located at the center of the lower body 12. A groove 311 for connecting the protrusion 93 formed at the upper end of the lower body 12 is formed at the lower end of the agitator shaft 31. The opening of the groove 311 faces downwards. When the sliding frame 71 descends to the lower opening position of the upper body 11, the protrusion 93 enters the groove 311. When the sliding frame 71 moves upwards, the agitator shaft 31 disengages from the intermediate shaft 92. An agitator motor 94 is connected to the lower end of the intermediate shaft 92 and is fixed to the outside of the lower body 12. The scrapers 91 are fixed to the intermediate shaft 92, and the outer wall of the scrapers 91 is fitted against the inner wall of the lower body 12. The agitator motor 94 drives the two scrapers 91 to move, thus cleaning the propolis adhering to the lower body 12. When in use, if the solution inside the tank 1 needs to be stirred, the stirring motor 94 simultaneously drives the intermediate shaft 92 and the stirring shaft 31, so that the scraper 91 and the stirring blade 32 stir the solution below and above the filter screen 73. When the lower body 12 is opened and the propolis inside the lower body 12 needs to be poured out, the stirring motor 94 drives the scraper 91 to move independently.

[0030] refer to Figure 3 and Figure 5The crushing device 2 includes a housing 21, a first crushing roller 22, a second crushing roller 23, a strip forming roller 24, and a cutting roller 25. A connecting edge 211 is formed at the upper opening of the housing 21. The diameter of the connecting edge 211 is larger than the opening diameter of the tank body 1, allowing the connecting edge 211 to rest on the tank body 1. A cover 4 is used to press against the upper surface of the connecting edge 211, fixing the housing 21 to the tank body 1. A connecting rod 41 is provided above the cover 4. One end of the connecting rod 41 is rotatably connected to the tank body 1, and the other end is provided with a locking screw 42. The locking screw 42 is rotatably connected to the center of the cover 4, allowing the cover 4 to move downwards when the locking screw 42 rotates. When it is necessary to remove the crushing device 2, the connecting rod 41 can be used to rotate the cover 4 to a position offset from the opening of the tank body 1, thereby allowing the crushing device 2 to be removed from the opening of the tank body 1.

[0031] An inclined surface 212 is formed at the lower part of the shell 21. The inclined surface 212 is inclined to the axis of the tank body 1. The first rolling roller 22, the second rolling roller 23, the strip forming roller 24 and the cutting roller 25 are arranged sequentially from top to bottom along the inclined surface 212. The distance between the first rolling roller 22, the second rolling roller 23, the strip forming roller 24 and the cutting roller 25 and the inclined surface 212 gradually decreases. The first rolling roller 22, the second rolling roller 23, the strip forming roller 24 and the cutting roller 25 are all rotatably connected to the shell 21 and located above the inclined surface 212. When the crushing device 2 is located at the opening of the tank 1, propolis raw material is put into the tank 1. The propolis raw material will enter the shell 21 and pass through the first crushing roller 22, the second crushing roller 23, the strip forming roller 24 and the cutting roller 25 in sequence. The outer walls of the first crushing roller 22 and the second crushing roller 23 can be provided with anti-slip texture. The outer wall of the strip forming roller 24 is provided with multiple annular grooves 241, which are arranged along the axial direction of the strip forming roller 24. The outer wall of the cutting roller 25 is provided with multiple cutters 251 spaced apart in the circumferential direction. When the propolis raw material passes through the first crushing roller 22 and the second crushing roller 23, it can be formed into a cake shape. Then, under the action of the strip forming roller 24, it becomes a strip shape. When it passes through the cutting roller 25, it forms particles. The cutting roller 25 and the strip forming roller 24 can make the particles formed by the propolis raw material more uniform and reduce the crushing of impurities. A drive wheel 26 is connected to one end of the first pressing roller 22, the second pressing roller 23, the forming roller 24, and the cutting roller 25, and the diameter of the drive wheel 26 decreases in sequence. A transmission belt 27 is connected to the drive wheel 26. At the same time, an electric motor 28 is fixedly installed on the housing 21. Another drive wheel 26 is coaxially fixed on the output shaft of the electric motor 28. The first pressing roller 22, the second pressing roller 23, the forming roller 24, and the cutting roller 25 can rotate simultaneously in the same direction through the transmission belt 27, and the rotation speed increases in sequence.

[0032] This embodiment also discloses a propolis extraction method. Using the aforementioned propolis extraction equipment, the propolis raw material is first fed into the crushing device 2 through the opening of the tank 1. The crushing device 2 then crushes the propolis raw material, which falls onto the filter screen 73. Next, edible ethanol is added through the opening of the tank 1. The edible ethanol mixes with the propolis raw material, and the dissolution rate is accelerated by the stirring device 3. Then, a cold medium is introduced into the water channel 16 of the upper body 11, causing beeswax to precipitate from the solution. The solution is then transferred to the transfer tank 5 and returned to the tank 1 from the top. Simultaneously, the filter screen 73 moves upward to the top of the tank 1, filtering beeswax and impurities. The solution is then sent back to the transfer tank 5. Open the lower body 12, remove the filter screen 73, replace the filter screen 73, and then close the lower body 12. Start introducing the heat medium into the water channel 16 inside the upper body 11, while simultaneously depressurizing the tank 1. The ethanol in the solution entering the tank 1 evaporates and is discharged from the tank 1. During the ethanol evaporation process, the stirring device 3 can agitate the solution to increase the evaporation rate. When the ethanol content drops to 50%, the filter screen 73 moves upward, causing the stirring device 3 to detach from the solution. Then, the scraping device 9 agitates the solution separately. After the propolis is formed, open the lower body 12 to remove the propolis from the lower body 12. At the same time, the scraping device 9 cleans the inner wall of the lower body 12 by rotating the scraper 91.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A propolis extraction device, characterized in that: The container includes a tank (1), a crushing device (2) is provided on the upper part of the tank (1), and a solution for dissolving propolis is provided inside the tank (1). The crushing device (2) includes a shell (21), a first crushing roller (22), a second crushing roller (23), a strip forming roller (24), and a cutting roller (25). A connecting edge (211) is formed on the upper part of the shell (21), and the shell (21) is fixed to the opening of the tank (1) by the connecting edge (211). An inclined surface (212) is formed on the lower part of the shell (21), and the inclined surface (212) is inclined to the axis of the tank (1). The first crushing roller (22), the second crushing roller (23), the strip forming roller (24), and the cutting roller (25) are provided. 4) The cutting roller (25) is arranged from top to bottom along the inclined direction of the inclined surface (212), and the distance between the first rolling roller (22), the second rolling roller (23) and the strip forming roller (24) and the inclined surface (212) gradually decreases on the side close to the inclined surface (212). The strip forming roller (24) is provided with multiple annular grooves (241) at intervals along the axial direction. The side wall of the cutting roller (25) is provided with multiple cutters (251) at intervals. The first rolling roller (22), the second rolling roller (23), the strip forming roller (24) and the cutting roller (25) are located above the inclined surface (212). The opening of the tank (1) is provided with a cover (4). A filter device (7) is provided inside the tank (1) and below the crushing device (2). The filter device (7) includes a sliding frame (71), a drive screw (72) and a filter screen (73). The sliding frame (71) is slidably fitted on the inner wall of the tank (1). The drive screw (72) is rotatably connected to the top of the tank (1) and is vertically set. The drive screw (72) is threadedly connected to the sliding frame (71). The filter screen (73) is installed on the sliding frame (71). A transfer tank (5) is provided outside the tank body (1). A pump (51) is provided between the transfer tank (5) and the tank body (1). The inlet of the pump (51) is connected to two inlet pipes (52). A first solenoid valve (53) is installed on each of the two inlet pipes (52). The ends of the two inlet pipes (52) away from the pump (51) are respectively connected to the bottom of the tank body (1) and the bottom of the transfer tank (5). The outlet of the pump (51) is connected to two outlet pipes (54). A second solenoid valve (55) is installed on each of the two outlet pipes (54). The ends of the two outlet pipes (54) away from the pump (51) are respectively connected to the top of the tank body (1) and the bottom of the transfer tank (5).

2. The propolis extraction equipment according to claim 1, characterized in that: The tank (1) includes an upper body (11) and a lower body (12). The lower body (12) is detachably connected to the lower end of the upper body (11), and the opening of the upper body (11) is connected to the lower opening of the lower body (12). The outlet pipe (54) connected to the bottom of the tank (1) is located at the bottom of the lower body (12).

3. The propolis extraction equipment according to claim 2, characterized in that: A rotating shaft (13) is provided on one side of the lower body (12) and is rotatably connected to the upper body (11) through the rotating shaft (13). The rotating shaft (13) is fixedly connected to the lower body (12). A worm gear reducer (15) is connected to the rotating shaft (13). A drive motor (14) is connected to the input shaft of the worm gear reducer (15). A scraping device (9) is installed on the lower body (12).

4. The propolis extraction equipment according to claim 3, characterized in that: The scraping device (9) includes an intermediate shaft (92) and a scraper (91). The intermediate shaft (92) is rotatably connected to the lower body (12). The scraper (91) is fixed on the intermediate shaft (92) and is disposed against the inner wall of the lower body (12). An agitator motor (94) is fixedly disposed on the lower body (12). The agitator motor (94) is used to drive the intermediate shaft (92) to rotate.

5. The propolis extraction equipment according to claim 4, characterized in that: The tank (1) is equipped with an agitation device (3), which includes an agitation shaft (31), agitation blades (32), and a shaft seat (33). The shaft seat (33) is fixed on a sliding frame (71). The upper end of the agitation shaft (31) is rotatably connected to the shaft seat (33). The lower end of the agitation shaft (31) passes through the filter screen (73) and is connected to the upper end of the intermediate shaft (92) through a slot (311). The agitation blades (32) are fixed on the agitation shaft (31) and located above the filter screen (73).

6. The propolis extraction equipment according to claim 1, characterized in that: The filter screen (73) includes a screen frame (731) and a screen body (732). The lower part of the sliding frame (71) is provided with a step (711). The screen body (732) is fixed on the screen frame (731). The screen frame (731) is located inside the step (711) and is threadedly connected to the inner wall of the step (711). A sealing gasket (75) is provided between the bottom of the step (711) and the screen frame (731).

7. The propolis extraction equipment according to claim 1, characterized in that: The tank (1) is externally connected to a vacuum pump (6) for depressurizing the inside of the tank (1).

8. A method for extracting propolis, characterized in that: The method includes extracting propolis using a propolis extraction device according to any one of claims 1-7, which includes first crushing the propolis and then adding ethanol into the tank (1) to dissolve the propolis in the ethanol.

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