A device for recovering oil liquid from stone-ground sesame oil residue by leaching

Abstract

The application discloses a kind of stone mill sesame oil residue leaching oil liquid recovery device in the technical field of sesame oil processing, including containing unit and mixing unit, the containing unit includes barrel-shaped mixing barrel, is set base outside mixing barrel, upper end one side is provided with feed inlet, the lowermost end is connected with residue discharge port, lower end is provided with liquid discharge port, upper end other side is provided with liquid inlet, funnel-shaped filter cover is installed in inside lower end.The application constructs two groups of agitation force fields in opposite directions in mixing barrel inside by the synergistic effect of mixing component and stirring component, the two groups of agitation force can drive the sesame oil residue in container and leaching agent from bottom to top circulation turnover, form strong convection and shear effect, greatly increase the contact area and contact frequency between sesame oil residue and leaching agent, so as to significantly improve the mixing efficiency of both, promote them to occur reaction more fully and quickly, realize the technical effect of accelerating leaching work efficiency and improving oil liquid recovery rate.

Description

Technical Field

[0001] This invention relates to the field of sesame oil processing technology, and in particular to a device for extracting and recovering oil from stone-ground sesame oil residue. Background Technology

[0002] In industrial production, sesame oil is typically extracted and refined using machinery. This process produces a lot of residue, which usually needs to be dried and further processed into oil cakes, etc. However, a certain amount of oil still remains in the oil residue after pressing and refining. How to recover the oil from the oil residue is an urgent problem to be solved. The current equipment for leaching and recovering oil from sesame oil residue has the following problems: 1. After leaching, the remaining oil residue needs to be manually cleaned. This operation is time-consuming. Manual cleaning is not only inefficient but also labor-intensive. Long-term repetitive operation can easily lead to operator fatigue, which in turn affects the cleaning quality. At the same time, incomplete cleaning may occur during manual cleaning, and the residual oil residue will cause pollution to subsequent production processes, affecting product quality; 2. The mixing efficiency between oil residue and leaching agent is low, which makes the overall leaching effect need to be improved. Low mixing efficiency will cause the oil in the oil residue to not fully contact the leaching agent, thereby reducing the oil recovery rate. Moreover, uneven mixing may also cause some oil residue to not be effectively leached, resulting in resource waste and increasing the difficulty and cost of subsequent processing. Summary of the Invention

[0003] In view of the problems existing in the prior art, the present invention proposes a device for extracting and recovering oil from stone-ground sesame oil residue to solve such problems.

[0004] To solve the above technical problems, the present invention provides the following technical solution: a device for extracting and recovering oil from stone-ground sesame oil residue, comprising a containing unit and a mixing unit. The containing unit includes a barrel-shaped mixing barrel, a base is provided outside the mixing barrel, a feed inlet is provided on one side of the upper end, a slag discharge port is connected to the lowest end, a liquid discharge port is provided at the lower end, a liquid inlet is provided on the other side of the upper end, and a funnel-shaped filter cover is installed at the lower end inside. The mixing unit includes a drive assembly located at the top of the mixing tank, a limiting component vertically disposed at the center of the top of the mixing tank with its upper and lower ends extending to the outside and inside of the tank, respectively; a push component disposed at the top of the limiting component, a driven gear disposed above the limiting component and between the push component and the limiting component; a mixing component disposed below the limiting component and inside the mixing tank, a mixing assembly disposed below the mixing component, an agitator disposed vertically inside the limiting component and extending downward into the mixing component, and a limiting spring disposed at the top of the agitator.

[0005] As a preferred embodiment of the stone mill sesame oil residue leaching and oil recovery device of the present invention, the mixing tank has a mixing chamber with a conical bottom and a discharge port on the bottom, and the lower end of the filter cover is attached to the discharge port; the liquid discharge port is located on the side of the discharge port and has a built-in sealing knob; the top of the slag discharge port is connected to the bottom of the discharge port.

[0006] As a preferred embodiment of the stone mill sesame oil residue leaching and oil recovery device of the present invention, wherein: a baffle is provided at the lower end of the discharge port, and its upper end is horizontally blocked from the discharge port; a receiving pipe is provided on the bottom surface of the slag discharge port, the lower end of the baffle extends into the receiving pipe, and a supporting spring is provided between the two.

[0007] As a preferred embodiment of the stone mill sesame oil residue leaching and recovery oil device of the present invention, the driving component includes a driving motor located at the top of the mixing tank, and a driving gear disposed on one side of the driving motor, wherein the driving gear meshes with the edge of the driven gear.

[0008] As a preferred embodiment of the stone mill sesame oil residue leaching and recovery oil device of the present invention, the limiting component includes four sets of annularly distributed limiting plates, and the limiting plates are rotatably connected to the center of the top of the mixing tank. The pushing component is connected to the limiting plate. A limiting groove is provided between every two sets of limiting plates. A first guide tooth and a second guide tooth are respectively provided on both sides of the end of the limiting plate, and a slot is provided between them.

[0009] As a preferred embodiment of the stone mill sesame oil residue leaching and oil recovery device of the present invention, the pushing component includes a first fixing ring fixed to the top of the limiting plate, a top plate disposed at the top of the first fixing ring, a pushing component disposed below the first fixing ring, and a pushing component disposed between the first fixing ring and the top plate, the lower end of which passes through the first fixing ring and is fixedly connected to the outside of the pushing component.

[0010] As a preferred embodiment of the stone mill sesame oil residue leaching and oil recovery device of the present invention, the mixing component includes a rotating cylinder vertically placed at the center of the mixing tank, the mixing assembly is connected to the rotating cylinder, irregularly shaped stirring rods are provided on both sides of the outside of the rotating cylinder, a second fixing ring is provided at the top of the rotating cylinder and sleeved on the outside of the limiting component, and a connecting rod is provided between the rotating cylinder and the second fixing ring.

[0011] As a preferred embodiment of the stone mill sesame oil residue leaching and oil recovery device of the present invention, the mixing component includes a sleeve fitted onto the lower end of the rotating shaft cylinder, and levers symmetrically arranged on both sides of the sleeve.

[0012] As a preferred embodiment of the stone mill sesame oil residue leaching and recovery oil device of the present invention, the stirring component includes an adjustment component located inside the limiting component, a keel shaft vertically arranged below the adjustment component and extending into the mixing component, and an auger blade spirally wound on the keel shaft.

[0013] As a preferred embodiment of the stone mill sesame oil residue leaching and recovery oil device of the present invention, the adjusting component includes a base disposed inside four sets of limiting components, a rotating shaft disposed at the top of the base and extending into the pushing component, four sets of limiting blocks distributed in a ring on the outside of the base and slidably connected in the limiting groove, and a third guide surface disposed on one side of the top of the limiting block.

[0014] The beneficial effects of this invention are as follows: Through the synergistic action of the mixing component and the stirring component, two sets of stirring fields with opposite directions are constructed inside the mixing tank. These two sets of stirring forces can drive the sesame oil residue and the extractant in the container to circulate and turn from bottom to top, forming a strong convection and shear effect, which greatly increases the contact area and contact frequency between the sesame oil residue and the extractant, thereby significantly improving the mixing efficiency of the two and enabling them to react more fully and quickly, thus achieving the technical effects of accelerating the extraction efficiency and improving the oil recovery rate. Meanwhile, by changing the position of the agitator, the auger blade 273 extends to the discharge port 112 and forms a stirring action at the discharge port 112. The stirring method can prevent the oil residue from accumulating and piling up at the discharge port 112, causing blockage, and ensuring that the oil residue is discharged smoothly. At the same time, driving the auger blade to rotate in the opposite direction in the discharge port can enable it to convey and discharge the oil residue downwards, further preventing blockage and accelerating the efficiency of oil residue discharge, significantly enhancing the overall flexibility of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the material mixing device of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of the material mixing device of the present invention.

[0017] Figure 3 This is a schematic diagram of the stirring force direction of the material mixing device of the present invention.

[0018] Figure 4 This is a schematic diagram of the mixing unit of the material mixing device of the present invention.

[0019] Figure 5 This is an exploded view of the mixing unit of the material mixing device of the present invention.

[0020] Figure 6 This is a schematic diagram of the structure of the pushing component of the material mixing device of the present invention.

[0021] Figure 7 This is a schematic diagram of the agitator component of the material mixing device of the present invention.

[0022] Figure 8 This is a schematic diagram of the connection between the limiting component and the stirring component of the material mixing device of the present invention.

[0023] Figure 9 This is a schematic diagram of the telescopic state structure of the limiting component and the stirring component of the material mixing device of the present invention.

[0024] Reference numerals: 1. Receiving unit; 2. Mixing unit; 3. Filter cover; 4. Lifting trajectory one; 5. Lifting trajectory two; 11. Mixing tank; 12. Base; 13. Feed inlet; 14. Slag discharge port; 15. Liquid discharge port; 16. Liquid inlet; 21. Drive assembly; 22. Limiting component; 23. Pushing component; 24. Driven gear; 25. Mixing component; 26. Mixing assembly; 27. Agitating component; 28. Limiting spring; 111. Mixing chamber; 112. Discharge port; 141. Baffle; 142. Receiving tube; 143. Support spring; 151. Sealing knob; 211. Drive motor; 212. Drive gear; 221. Limiting plate; 222. Limiting groove; 223. First guide. 224. Second guide tooth; 225. Slot; 226. First guide surface; 227. Second guide surface; 231. First fixing ring; 232. Top plate; 233. Pushing assembly; 234. Pushing assembly; 235. Collar; 236. Slot; 237. Pushing cylinder; 238. Pushing rod; 251. Rotating shaft cylinder; 252. Irregular stirring rod; 253. Second fixing ring; 254. Connecting rod; 255. Lifting end; 256. Scooping end; 257. Lifting groove; 261. Sleeve; 262. Lever; 271. Adjusting assembly; 272. Keel shaft; 273. Screw blade; 274. Base; 275. Rotating shaft; 276. Limiting block; 277. Third guide surface. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of the present invention more readily understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Reference Figures 1 to 9This invention includes an embodiment of a device for extracting and recovering oil from stone-ground sesame oil residue. The device comprises a receiving unit 1 and a mixing unit 2. The receiving unit 1 includes a barrel-shaped mixing tank 11. A base 12 is provided outside the mixing tank 11. A feed inlet 13 is provided on one side of the upper end. A slag discharge port 14 is connected to the lower end. A liquid discharge port 15 is provided at the lower end. A liquid inlet 16 is provided on the other side of the upper end. A funnel-shaped filter cover 3 is installed at the lower end of the inside. The feed inlet 13 is equipped with a structure for crushing oil residue, so that the granular structure for easy mixing after frying enters the mixing tank 11. The crushing mechanism can adopt a common crusher structure in the prior art. The slag discharge port 14 is used to discharge the fried residue, the liquid discharge port 15 is used to discharge the liquid after extraction, and the liquid inlet 16 is used to add the extraction agent. Reference Figure 4 The mixing unit 2 includes a drive assembly 21 located at the top of the mixing tank 11, a limiting member 22 vertically disposed at the center of the top of the mixing tank 11 with its upper and lower ends extending to the outside and inside of the tank, respectively; a push member 23 disposed at the top of the limiting member 22, a driven gear 24 disposed above the limiting member 22 and located between the push member 23 and the limiting member 22; a mixing member 25 disposed below the limiting member 22 and inside the mixing tank 11, a mixing assembly 26 disposed below the mixing member 25, an agitator 27 vertically disposed inside the limiting member 22 and extending downward into the mixing member 25, and a limiting spring 28 disposed at the top of the agitator 27. During use, the pushing component 23 is connected to the top of the limiting component 22, the inner ring of the driven gear 24 is fixedly connected to the upper outer side of the limiting component 22, and the top of the mixing component 25 is fixedly sleeved on the lower outer side of the limiting component 22. The driving component 21 can drive the limiting component 22 to rotate by meshing with the driven gear 24. The rotating limiting component 22 can drive the mixing component 25 to rotate inside the mixing tank 11 by being fixedly connected with the mixing component 25. The rotating mixing component 25 will stir and mix the oil residue and leaching agent inside the mixing tank 11.

[0028] Reference Figure 2 and Figure 3 The mixing tank 11 has a mixing chamber 111 with a conical bottom and a discharge port 112 on the bottom. The lower end of the filter cover 3 is attached to the discharge port 112. The liquid discharge port 15 is located on the side of the discharge port 112 and has a built-in sealing knob 151. The top of the slag discharge port 14 is connected to the lower end of the discharge port 112. By controlling the state of the sealing knob 151, the liquid discharge port 15 can be used for discharge. The filter cover 3 is located between the discharge port 112 and the liquid discharge port 15, which can prevent the oil slag from being discharged accidentally, so that only the liquid generated by leaching can be discharged from the liquid discharge port 15.

[0029] Reference Figure 2A baffle 141 is provided at the lower end of the discharge port 112, and its upper end is horizontally blocked from the discharge port 112. A receiving pipe 142 is provided on the bottom surface of the slag discharge port 14. The lower end of the baffle 141 extends into the receiving pipe 142, and a support spring 143 is provided between the two. Under normal conditions, the baffle 141 is supported by the support spring 143 and is located inside the discharge port 112. At this time, the discharge port 112 will not be connected with the slag discharge port 14, so that the mixing chamber 111 is in a closed environment. When the lower end of the stirring component 27 extends downward, the baffle 141 will move downward under its pressure, so that the slag discharge port 14 is connected with the discharge port 112, thereby facilitating the subsequent discharge of oil slag.

[0030] Reference Figure 1 The drive assembly 21 includes a drive motor 211 located at the top of the mixing tank 11, and a drive gear 212 disposed on one side of the drive motor 211, with the drive gear 212 meshing with the edge of the driven gear 24. The drive motor 211 can drive the driven gear 24 to rotate through the meshing of the drive gear 212 and the driven gear 24. The inner side of the driven gear 24 is fixedly connected to the outer wall of the limiting member 22. Therefore, the drive assembly 21 can synchronously drive the limiting member 22 to rotate.

[0031] Reference Figure 5 The limiting component 22 includes four sets of annularly distributed limiting plates 221, and the limiting plates 221 are rotatably connected to the center of the top of the mixing tank 11. The pushing component 23 is connected to the limiting plates 221. A limiting groove 222 is provided between every two sets of limiting plates 221. A first guide tooth 223 and a second guide tooth 224 are respectively provided on both sides of the end of the limiting plate 221, and a slot 225 is provided between them. The outer edge of the limiting plate 221 is fixedly connected to the driven gear 24, but the limiting groove 222 is not affected by the driven gear 24. A first guide surface 226 is provided on the side of the first guide tooth 223. Any component that slides along the first guide surface 226 will be guided into the second guide tooth 224. An inclined second guide surface 227 is provided on the side of the second guide tooth 224 near the slot 225. Any component that slides along the second guide surface 227 will be guided into the slot 225.

[0032] Reference Figure 6 The pushing component 23 includes a first fixing ring 231 fixed to the top of the limiting plate 221, a top plate 232 disposed at the top of the first fixing ring 231, a pushing component 233 disposed below the first fixing ring 231, and a pushing component 234 disposed between the first fixing ring 231 and the top plate 232. Its lower end passes through the first fixing ring 231 and is fixedly connected to the outside of the pushing component 233. The first fixing ring 231 fixes the four sets of limiting plates 221 together. The top of the limiting spring 28 is fixedly connected to the bottom surface of the top plate 232, and the end is fixedly connected to the top of the stirring component 27, thereby connecting the two together.

[0033] Furthermore, refer to Figure 6 The pushing component 233 includes four sets of collars 235 located within the limiting plate 221, and multiple sets of retaining teeth 236 formed below the collars 235. The pushing component 234 includes a pushing cylinder 237 fixedly disposed between the first fixed ring 231 and the top plate 232, and a pushing rod 238 located inside the pushing cylinder 237 and extending downward. The pushing rod 238 is fixedly connected to the outside of the collars 235, and the pushing rod 238 is located within the limiting groove 222 and is limited by the limiting groove 222. Therefore, the collars 235 and the pushing rod 238 can only move vertically within the range of the limiting groove 222. Reference Figure 4 The mixing component 25 includes a rotating cylinder 251 vertically placed inside the center of the mixing tank 11. The mixing assembly 26 is connected to the rotating cylinder 251. Irregularly shaped stirring rods 252 are provided on both sides of the outside of the rotating cylinder 251. A second fixing ring 253 is provided at the top of the rotating cylinder 251 and is sleeved on the lower outer side of the limiting component 22. A connecting rod 254 is provided between the rotating cylinder 251 and the second fixing ring 253. A lifting groove 257 is opened inside the rotating cylinder 251, through which the lower part of the stirring component 27 passes. The second fixing ring 253 is fixedly connected to the lower outer side of the limiting component 22 and will rotate synchronously with the limiting component 22. Three sets of connecting rods 254 are provided between the second fixing ring 253 and the rotating cylinder 251 to fix the two together. There is a large gap between the three sets of connecting rods 254, which can facilitate the discharge of the mixed oil residue that is taken out by the stirring component 27 from the lifting groove 257.

[0034] Furthermore, refer to Figure 4 The irregularly shaped stirring rods 252 are distributed at an angle on both sides of the rotating shaft cylinder 251. The top part of the irregularly shaped stirring rods 252 is the lifting end 255, and the bottom part is the scooping end 256. The lifting end 255 to the scooping end 256 can form a threaded structure, and the direction of the thread rotation is as follows: Figure 4 As indicated by the middle arrow.

[0035] Reference Figure 3 and Figure 4 During use, when the mixing component 25 rotates as a whole, according to the thread direction of the irregularly shaped stirring rod 252, the material will be stirred from the shovel end 256, causing it to move upwards towards the lifting end 255 along the arc direction of the irregularly shaped stirring rod 252. When the material reaches the lifting end 255, it will fall to the inside of the irregularly shaped stirring rod 252, i.e., the position of the rotating shaft cylinder 251, due to the length limitation of the irregularly shaped stirring rod 252 and the inner wall limitation of the mixing tank 11. At this time, the overall movement trajectory of the material stirred by the mixing component 25 in the mixing chamber 111 is as follows: Figure 4As shown in the lifting trajectory 4 (from bottom → outward → upward → inward), with the continuous rotation of the mixing component 25, the oil residue and extractant in the mixing tank 11 will be fully stirred from the inside out, thereby enhancing the mixing effect.

[0036] Reference Figure 5 The mixing assembly 26 includes a sleeve 261 fitted onto the lower end of the rotating shaft cylinder 251, and levers 262 symmetrically arranged on both sides of the sleeve 261. The sleeve 261 is fixedly fitted onto the lower part of the rotating shaft cylinder 251 and will rotate with it. The levers 262 are located at the bottom of the mixing chamber 111 and can agitate the material at the bottom to prevent material accumulation.

[0037] Reference Figure 7 The agitating component 27 includes an adjusting component 271 located inside the limiting component 22, a keel shaft 272 vertically disposed below the adjusting component 271 and extending into the mixing component 25, and an auger blade 273 spirally wound around the keel shaft 272. The adjusting component 271 and the limiting plate 221 are engaged, and neither can rotate circumferentially independently. Therefore, when they rotate, they rotate synchronously. The radius of the auger blade 273 matches the size of the lifting groove 257. When the auger blade 273 is stationary in the lifting groove 257, it can be blocked. In the normal state, the agitating component 27 is located entirely in the lifting groove 257, with its end extending directly above the discharge port 112 and its top located inside the limiting component 22. A section of the auger blade 273 is exposed between the connecting rods 254.

[0038] Reference Figure 7 During use, when the limiting component 22 drives the agitator 27 to rotate, the auger blade 273 extends through the lifting groove 257 to the bottom of the mixing chamber 111, and its position is on the central axis of the mixing chamber 111. Combined with the threaded direction of the auger blade 273, it will lift the oil residue and extractant mixture located at the center of the bottom of the mixing chamber 111 and raise it upwards through the lifting groove 257. After being lifted by the auger blade 273 to the top of the rotating shaft cylinder 251, the oil residue and extractant mixture is released from the lifting groove 257 and eventually flows out... The oil residue and extractant mixture is discharged from the top of the rotating cylinder 251 through the gap between the connecting rods 254. Since the rotating cylinder 251 is located at the center of the mixing chamber 111, the discharged oil residue and extractant mixture will be splashed outward with the rotating cylinder 251 as the center. The convection and shearing action generated by the auger blades 273 can make the materials fully mixed in the container. The rotation of the auger blades 273 creates mutual pushing and resistance between the oil residue and extractant mixture, promoting the uniform dispersion of the oil residue and extractant mixture, thereby achieving a good mixing effect. During this process, the movement trajectory of the material rolled up by the auger blades 273 is as follows: Figure 3The upward trajectory is shown in Figure 2.5 (from bottom → inward → upward → outward).

[0039] Furthermore, through the fixed connection between the limiting component 22 and the mixing component 25, and the vertical locking and limiting of the stirring component 27 by the limiting component 22, the rotation of the limiting component 22 can drive both components to move synchronously. The mixing component 25 drives the material to move along a path from bottom to outside to top to inside, while the stirring component 27 drives the material to move along a path from bottom to inside to top to outside, with the two movements in exactly opposite directions. The two sets of stirring forces in different directions create a stronger convection and shear effect in the container, which can greatly increase the contact probability between the oil residue and the leaching agent mixture, thereby improving the mixing effect of the device. Through the synergistic action of the mixing component 25 and the stirring component 27, two sets of stirring fields with opposite directions are constructed inside the mixing tank 11, driving the sesame oil residue and the extractant in the container to circulate and tumble from bottom to top, forming a strong convection and shear effect. This greatly increases the contact area and contact frequency between the sesame oil residue and the extractant, thereby significantly improving the mixing efficiency of the two and promoting them to react more fully and quickly, achieving the technical effect of accelerating the extraction efficiency and improving the oil recovery rate.

[0040] Reference Figure 7 The adjusting component 271 includes a base 274 located inside four sets of limiting components 22, a rotating shaft 275 located at the top of the base 274 and extending into the pushing component 233, four sets of limiting blocks 276 distributed in a ring on the outside of the base 274 and slidably connected in the limiting groove 222, and a third guide surface 277 located on one side of the top of the limiting block 276. The rotating shaft 275 is sleeved under the collar 235, and the two are rotatably connected. The limiting block 276 is limited by the limiting groove 222. In addition, it is fixedly connected to the base 274 and the rotating shaft 275. It can be concluded that the adjusting component 271 is limited by the pushing component 233 as a whole. It can only slide vertically within the range of the limiting groove 222. The locking teeth 236 engage with the top of the limiting block 276. Therefore, the pushing component 233 can push the adjusting component 271 to move vertically downward.

[0041] During use, combined with Figure 3When it is necessary to discharge the material in the mixing tank 11, the pushing component 234 drives the pushing rod 238 to push the pushing component 233 downward. The pushing component 233 will simultaneously push the adjusting component 271 to move downward along the limiting groove 222. The moving adjusting component 271 will stretch the limiting spring 28 downward. At this time, the limiting block 276 is limited by the limiting groove 222, so that its top can only abut against the side of the locking tooth 236 and cannot be fully locked into the empty groove between the locking teeth 236. As the pushing component 233 continues to push the adjusting component 271 downward... The adjustment component 271 moves downward until the limiting block 276 is completely disengaged from the limiting groove 222. At this point, the adjustment component 271 is no longer limited by the limiting groove 222, and the limiting block 276 will be fully engaged in the slot between the teeth 236. At this time, the adjustment component 271 will deflect at a certain angle, and the limiting block 276 will be located below the slot 225, stopping the pushing operation of the pushing component 234. The limiting spring 28 will then rebound upward and pull the adjustment component 271 upward. The upward-moving adjustment component 271 will pass through the third guide surface 277. The guide is inserted into the slot 225 and is limited by it. At this time, the adjusting component 271 is completely located at the bottom of the limiting component 22. Due to the fixed connection between the adjusting component 271, the keel shaft 272 and the auger blade 273, the auger blade 273 will move down synchronously when the adjusting component 271 moves down. At this time, the auger blade 273 is inserted into the discharge port 112. Then, the stirring component 27 rotates in the opposite direction, and the auger blade 273 will form a stirring effect at the discharge port 112. The stirring method can prevent the mixture of oil residue and extractant from being produced at the discharge port 112. Oil residue accumulates, causing blockage at the discharge port 112. While the forward-rotating auger blade 273 has the ability to lift and raise, the reverse-rotating auger blade 273 has the ability to convey and discharge downwards, further preventing blockage. By driving the auger blade 273 to rotate in the reverse direction in the discharge port 112, not only can the oil residue be smoothly discharged, but it can also be conveyed and discharged downwards. This further prevents blockage and accelerates the efficiency of oil residue discharge, significantly enhancing the overall flexibility of the device.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for extracting and recovering oil from stone-ground sesame oil residue, comprising a receiving unit (1) and a mixing unit (2), characterized in that: The containing unit (1) includes a barrel-shaped mixing barrel (11), a base (12) is provided outside the mixing barrel (11), a feed inlet (13) is provided on one side of the upper end, a slag discharge port (14) is connected to the lowest end, a liquid discharge port (15) is provided at the lower end, a liquid inlet (16) is provided on the other side of the upper end, and a funnel-shaped filter cover (3) is installed at the lower end inside. The mixing unit (2) includes a drive assembly (21) located at the top of the mixing tank (11), a limiting component (22) vertically disposed at the center of the top of the mixing tank (11), with its upper and lower ends extending to the outside and inside of the tank respectively; a push component (23) disposed at the top of the limiting component (22), a driven gear (24) disposed above the limiting component (22), and located between the push component (23) and the limiting component (22); a mixing component (25) disposed below the limiting component (22) and inside the mixing tank (11), a mixing assembly (26) disposed below the mixing component (25), a stirring component (27) vertically disposed inside the limiting component (22) and extending downward into the mixing component (25), and a limiting spring (28) disposed at the top of the stirring component (27).

2. The device for extracting and recovering oil from stone-ground sesame oil residue according to claim 1, characterized in that: The mixing tank (11) has a mixing chamber (111) with a cone-shaped bottom and a discharge port (112) on the bottom. The lower end of the filter cover (3) is attached to the discharge port (112). The liquid discharge port (15) is located on the side of the discharge port (112) and has a built-in sealing knob (151). The top of the slag discharge port (14) is connected to the lower end of the discharge port (112).

3. The device for extracting and recovering oil from stone-ground sesame oil residue according to claim 2, characterized in that: The lower end of the discharge port (112) is provided with a baffle (141), the upper end of which is horizontally blocked by the discharge port (112); the bottom surface of the slag discharge port (14) is provided with a receiving tube (142), the lower end of the baffle (141) extends into the receiving tube (142), and a support spring (143) is provided between the two.

4. The device for extracting and recovering oil from stone-ground sesame oil residue according to claim 1, characterized in that: The drive assembly (21) includes a drive motor (211) located at the top of the mixing tank (11) and a drive gear (212) disposed on one side of the drive motor (211), wherein the drive gear (212) meshes with the edge of the driven gear (24).

5. The device for extracting and recovering oil from stone-ground sesame oil residue according to claim 1, characterized in that: The limiting component (22) includes four sets of ring-shaped limiting plates (221), and the limiting plates (221) are rotatably connected to the center of the top of the mixing tank (11). The pushing component (23) is connected to the limiting plate (221). A limiting groove (222) is provided between every two sets of limiting plates (221). A first guide tooth (223) and a second guide tooth (224) are provided on both sides of the end of the limiting plate (221), and a slot (225) is provided between them.

6. The device for extracting and recovering oil from stone-ground sesame oil residue according to claim 5, characterized in that: The pushing component (23) includes a first fixing ring (231) fixed to the top of the limiting plate (221), a top plate (232) disposed at the top of the first fixing ring (231), a pushing component (233) disposed below the first fixing ring (231), and a pushing component (234) disposed between the first fixing ring (231) and the top plate (232), the lower end of which passes through the first fixing ring (231) and is fixedly connected to the outside of the pushing component (233).

7. The device for extracting and recovering oil from stone-ground sesame oil residue according to claim 1, characterized in that: The mixing component (25) includes a rotating cylinder (251) that is vertically placed inside the center of the mixing tank (11), a mixing assembly (26) connected to the rotating cylinder (251), irregularly shaped stirring rods (252) on both sides of the outside of the rotating cylinder (251), a second fixing ring (253) at the top of the rotating cylinder (251) and sleeved on the outside of the limiting component (22), and a connecting rod (254) between the rotating cylinder (251) and the second fixing ring (253).

8. The device for extracting and recovering oil from stone-ground sesame oil residue according to claim 7, characterized in that: The mixing assembly (26) includes a sleeve (261) fitted onto the lower end of the rotating shaft cylinder (251) and levers (262) symmetrically arranged on both sides of the sleeve (261).

9. The device for extracting and recovering oil from stone-ground sesame oil residue according to claim 1, characterized in that: The stirring component (27) includes an adjustment component (271) located inside the limiting component (22), a keel shaft (272) vertically disposed below the adjustment component (271) and extending into the mixing component (25), and an auger blade (273) spirally wound around the keel shaft (272).

10. The device for extracting and recovering oil from stone-ground sesame oil residue according to claim 9, characterized in that: The adjustment assembly (271) includes a base (274) disposed inside the four sets of limiting components (22), a rotating shaft (275) disposed at the top of the base (274) and extending into the pushing assembly (233), four sets of limiting blocks (276) distributed in a ring on the outside of the base (274), slidably connected in the limiting groove (222), and a third guide surface (277) disposed on one side of the top of the limiting block (276).

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