A kind of high oleic acid peanut oil efficient preparation method

Abstract

The present invention relates to the technical field of peanut oil preparation, and discloses an efficient preparation method of high oleic peanut oil, comprising the following steps: step 1, selecting peanut varieties with high oleic acid content, screening peanuts, removing impurities, damaged and moldy peanuts, washing the screened peanuts, and then drying them under a low temperature dry environment to a water content of 5% to 8%, step 2, crushing the dried peanuts into 4-6 petals, then conveying the crushed peanuts downward, and fixing the opening after being received by a cylindrical squeezing bag made of nylon filter cloth, and then starting the transmission mechanism in the squeezing device to push the squeezing mechanism backward, and further squeezing bags fall between the blocking mechanism and the squeezing mechanism. By driving the squeezing mechanism to squeeze forward, the whole process is coherent and efficient, greatly reducing the operation time, and using the receiving mechanism to move the receiving plate forward, and the squeezing bag is squeezed and thinned and needs to be transferred when it is transferred, thereby improving the overall production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of peanut oil preparation, in particular to a method for efficiently preparing high-oleic peanut oil. Background Art

[0002] Peanuts are the main oil crops, coarse grain crops and cash crops in my country and the world. High oleic peanut oil, as a high-quality edible oil, has received more and more attention in the market in recent years. High oleic peanut oil has a high oleic acid content and is rich in monounsaturated fatty acids. High oleic peanut oil is known as a nutritional health oil. It has been proven to inhibit abnormal platelet aggregation, effectively remove low-density protein in blood vessels, lower cholesterol, and is beneficial to human cardiovascular health.

[0003] At present, in the peanut oil pressing process, the commonly used pressing equipment has low efficiency in squeezing out oil from oil cakes and cannot quickly and continuously complete the bagging, squeezing and oil extraction operations of peanut crushed pieces, resulting in extended production cycles and increased operation time. In addition, the extrusion method of existing pressing equipment is often not uniform enough, which can easily cause the loss of oleic acid components and the decline of oil quality. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an efficient preparation method for high oleic peanut oil, which solves the problems of increased operation time and low production efficiency, and uneven extrusion leading to loss of oleic acid components and degradation of oil quality.

[0005] To achieve the above objectives, the present invention is implemented by the following technical scheme: a method for efficiently preparing high oleic peanut oil, comprising the following steps: Step 1: Select peanut varieties with higher oleic acid content, screen the peanuts, remove impurities, damaged and moldy peanuts, wash the screened peanuts, and then dry them in a low-temperature drying environment until the moisture content is 5% to 8%; Step 2: The dried peanuts are broken into 4-6 petals, and then the broken peanuts are transported downward, received by a cylindrical pressing bag made of nylon filter cloth, and the opening is fixed. Then the transmission mechanism in the pressing device is started to push the pressing mechanism backward, and the pressing bag falls between the blocking mechanism and the pressing mechanism. The transmission mechanism is started to move the pressing mechanism forward, and the pressing bag is squeezed by the blocking mechanism and the pressing mechanism, and the oil is squeezed out of the pressing bag; Step 3: The grease drips downward and flows into the receiving mechanism. As the squeeze mechanism squeezes and extracts, the squeeze bag is squeezed by the blocking mechanism and the squeeze mechanism to become thinner. The transmission mechanism starts the squeeze mechanism to move backward. As the squeeze mechanism moves backward, the receiving mechanism moves forward. The squeeze bag falls downward onto the receiving mechanism. The squeeze bag rolls backward with the receiving mechanism to obtain an oil column. Step 4, crushing the oil column to 20-40 mesh, and then performing supercritical CO2 extraction, the extraction pressure is 25-30MPa, the extraction temperature is 45-55°C, the extraction time is 1-2 hours, and the extracted oil is obtained; Step 5: Refining the virgin oil and the extracted oil separately to obtain refined pressed oil and extracted oil, which are then bottled.

[0006] Preferably, the receiving mechanism comprises a bottom plate, and an oil receiving seat is fixedly connected to the top of the bottom plate; The blocking mechanism includes a connecting seat, two first support members are fixedly connected to the rear side of the connecting seat, two blocking rollers are rotatably connected between the two first support members, the left ends of the two blocking rollers are fixedly connected to the first chain disk, and the surfaces of the two upper and lower adjacent first chain disks are meshedly connected with the first chain.

[0007] Preferably, the receiving mechanism comprises two second racks, the bottoms of the two second racks are meshedly connected with gears, the bottoms of the two gears are meshedly connected with first racks, and a receiving plate is fixedly connected between the two first racks.

[0008] Preferably, the extrusion mechanism includes a sliding seat, a pressure roller assembly is installed on the front side of the sliding seat, a driving assembly is installed on the bottom of the inner wall of the sliding seat, and fixing parts are fixedly connected to the left and right sides of the sliding seat, and threaded sleeves are fixedly connected to the inner diameters of the two fixing parts.

[0009] Preferably, the transmission mechanism includes four reinforcement members, a transmission shaft is fixedly connected between two adjacent reinforcement members, the opposite ends of the two transmission shafts are fixedly connected to the second bevel gear, the adjacent ends of the two transmission shafts are fixedly connected to the third bevel gear, the surfaces of the two second bevel gears are meshingly connected to the first bevel gear, the rear ends of the two first bevel gears are fixedly connected to threaded columns, and the threaded columns are threadedly connected to the threaded sleeves.

[0010] Preferably, a second drive motor is fixedly connected to the front side of the connecting seat, a reducer is fixedly connected to the output end of the second drive motor, the output end of the reducer is meshedly connected to the two third bevel gears, and the reducer is fixedly connected to the connecting seat.

[0011] Preferably, the two second racks are both located at the rear side of the sliding seat, and the two second racks are both fixedly connected to the sliding seat.

[0012] Preferably, the pressing roller assembly comprises a squeezing roller, the left and right sides of the squeezing roller surface are rotatably connected with second support members, the two second support members are fixedly connected to the sliding seat, and the front sides of the outer surfaces of the two second support members are fixedly connected with blocking blocks; The driving assembly includes a first driving motor, which is fixedly connected to a sliding seat, a connecting shaft is fixedly connected to an output end of the first driving motor, and second chain plates are fixedly connected to the connecting shaft and the left and right ends of the extrusion roller, and a second chain is meshed and connected between the outer surfaces of two adjacent second chain plates.

[0013] Preferably, in step 5, the virgin oil refining process comprises the following steps: Heat the virgin oil to 50-60°C, add 8% to 12% phosphoric acid solution, stir for 20 to 30 minutes, and then let it stand for 2 to 3 hours; Remove the colloid by filtering, then add 10% to 15% sodium hydroxide solution at an oil temperature of 70-80°C, stir for 20 to 30 minutes, let stand for 2-3 hours, and separate the soap nuts; The deacidified oil is further washed with hot water to remove residual alkali and saponins, and the water in the washed oil is removed by vacuum drying to reduce the water content to below 0.1%, and activated white clay is added at an oil temperature of 100-110°C and a vacuum degree of 0.08-0.1MPa, and stirred for 20-30 minutes, and then filtered to remove the adsorbent for decolorization; At a temperature of 230-250°C and a vacuum degree of 0.06-0.08MPa, water vapor is introduced for deodorization for 1-2 hours to remove odorous substances and complete the refining of the virgin oil.

[0014] Preferably, in step 5, the extracted oil refining process comprises the following steps: The solvent used in the extraction process is recovered by vacuum distillation, cooled to 5-10°C to allow the wax to crystallize, separated by centrifugation, and degummed by adding phosphoric acid solution at 50-60°C; After that, the oil is deacidified in the same way as the virgin oil, and the alkali-refined oil is washed with water to remove the residual alkali solution, and then dried; Finally, a decolorizing agent is added to carry out decolorization at 110-120° C. and a vacuum degree of 0.09-0.1 MPa, and deodorization is carried out at 240-260° C. and a vacuum degree of 0.05-0.07 MPa for 2-3 hours to obtain refined extracted oil.

[0015] Working principle: The crushed peanuts are received by the cylindrical squeezing bag made of nylon filter cloth, the transmission mechanism starts working, the second drive motor of the transmission mechanism outputs power through the reducer to drive the transmission shaft to rotate, the second bevel gear and the third bevel gear on the transmission shaft are respectively meshed with the first bevel gear, so that the threaded column rotates, and the threaded column is threadedly connected with the threaded sleeve on the squeezing mechanism, thereby pulling the squeezing mechanism forward and squeezing the squeezing bag between the two blocking rollers in the blocking mechanism; Then, in the squeezing mechanism, the first driving motor starts working, driving the connecting shaft and the second chain plate on the squeezing roller to rotate through the connecting shaft, and the second chain drives the squeezing roller to rotate, and the squeezing roller squeezes the squeezing bag containing peanut pieces between the blocking mechanism and the squeezing mechanism to squeeze out the oil; Afterwards, the blocking roller in the blocking mechanism realizes synchronous rotation through the first chain plate and the first chain, which plays a role of blocking and assisting the squeezing bag. As the squeezing bag is squeezed to the limit and becomes thinner and thinner, the blocking block abuts against the first support member, so that the squeezing mechanism cannot move further, and the second driving motor of the transmission mechanism reverses, so that the threaded column and the threaded sleeve on the squeezing mechanism move in the opposite direction, thereby pushing the squeezing mechanism to move backward; As the extrusion mechanism moves backward, the second rack in the receiving mechanism meshes with the gear, and the gear meshes with the first rack. When the squeezed bag is squeezed and becomes thinner and needs to be dropped and transferred, as the extrusion mechanism moves backward, the second rack moves, and through the transmission of the gear, the first rack drives the receiving plate to move forward, catches the squeezed bag that falls from the extrusion point, and then rolls backward to achieve the transfer of the squeezed bag.

[0016] The present invention provides an efficient preparation method of high oleic peanut oil. It has the following beneficial effects: 1. The present invention can quickly push the extrusion mechanism through the transmission mechanism, so that the squeeze bag containing peanut pieces falls between the blocking mechanism and the extrusion mechanism, and then drive the extrusion mechanism to extrude forward. The whole process is coherent and efficient, which greatly reduces the operation time. The receiving mechanism is used to move the receiving plate forward, and the squeeze bag is squeezed and thinned and needs to be transferred, thereby improving the overall production efficiency.

[0017] 2. In the present invention, the left and right sides of the squeezing roller surface of the squeezing roller assembly are stably supported by the second support member, and rotate at a uniform speed under the drive of the driving assembly, so that the first driving motor is driven through the connecting shaft and the second chain plate and the second chain, and the squeezing roller is rotated during operation, so that the squeezing bag also rotates when being squeezed, so that the squeezing roller can squeeze the peanuts uniformly and stably. This uniform and moderate squeezing method retains the oleic acid component in the peanuts to the greatest extent, and avoids the loss of oleic acid and the decline of oil quality caused by uneven squeezing or excessive squeezing.

[0018] 3. In the continuous pressing process of the present invention, the forward and backward movements of the extrusion mechanism are completely driven by the transmission mechanism, without the need for frequent manual adjustments. At the same time, in the receiving mechanism, the cooperation of the second rack, gear and first rack also automatically responds to the movement of the extrusion mechanism, without the need for additional manual operation. The coordinated operation reduces manual intervention, which not only improves the consistency and stability of production, but also reduces the quality fluctuations that may be caused by human operational errors.

[0019] 4. When it is necessary to maintain the first drive motor in the drive assembly or replace the extrusion roller of the pressure roller assembly, the relevant parts can be directly disassembled for replacement without affecting the main structure of the entire mechanism. The overall installation and disassembly are simple, and when maintenance or replacement of parts is required, the operator can operate quickly.

[0020] 5. The cylindrical pressing bag made of nylon filter cloth used in the present invention can better withstand pressure, so that the oil can flow out fully, and at the same time, the primary oil and the extracted oil can be subsequently processed respectively, so that impurities and harmful substances are effectively removed, and the quality and stability of the oil are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic flow chart of a method for efficiently preparing high oleic peanut oil; Figure 2 It is a three-dimensional schematic diagram of a pressing device for a method for efficiently preparing high oleic peanut oil according to the present invention; Figure 3 It is a three-dimensional schematic diagram of a pressing device for a high-oleic peanut oil efficient preparation method of the present invention; Figure 4 It is a schematic front view of a pressing device for a method for efficiently preparing high oleic peanut oil according to the present invention; Figure 5 It is a schematic diagram on the left side of a pressing device of a method for efficiently preparing high oleic peanut oil of the present invention; Figure 6 A schematic top view of a pressing device for a method for efficiently preparing high oleic peanut oil according to the present invention; Figure 7 It is a schematic diagram of a blocking mechanism of a pressing device in a high-oleic peanut oil efficient preparation method of the present invention; Figure 8 It is a schematic diagram of the transmission mechanism of the pressing device in the high-oleic peanut oil efficient preparation method of the present invention; Fig. 9 It is a schematic diagram of the extrusion mechanism of the pressing device in the high-oleic peanut oil efficient preparation method of the present invention; Fig.10 The present invention is a schematic diagram of a receiving mechanism of a pressing device in a high-efficiency preparation method of high-oleic peanut oil.

[0022] Among them, 1. receiving mechanism; 101. oil receiving seat; 102. bottom plate; 2. blocking mechanism; 201. first support member; 202. blocking roller; 203. connecting seat; 204. first chain plate; 205. first chain; 3. receiving mechanism; 301. gear; 302. first rack; 303. second rack; 304. receiving plate; 4. extrusion mechanism; 401. pressing roller assembly; 4011. blocking block; 4012. second support member; 4013 , squeezing roller; 402, second chain; 403, second chain plate; 404, threaded sleeve; 405, fixing piece; 406, driving assembly; 4061, first driving motor; 4062, connecting shaft; 407, sliding seat; 5, transmission mechanism; 501, reinforcement; 502, first bevel gear; 503, second bevel gear; 504, transmission shaft; 505, second driving motor; 506, reducer; 507, threaded column; 508, third bevel gear. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example: Please see attached Figure 1 The embodiment of the present invention provides a method for efficiently preparing high oleic peanut oil, comprising the following steps: Step 1: Select peanut varieties with higher oleic acid content, screen the peanuts, remove impurities, damaged and moldy peanuts, wash the screened peanuts, and then dry them in a low-temperature drying environment until the moisture content is 5% to 8%; Step 2: The dried peanuts are broken into 4-6 petals, and then the broken peanuts are conveyed downward, and are received by a cylindrical squeezing bag made of nylon filter cloth and the opening is fixed. Then the transmission mechanism 5 in the squeezing device is started to push the squeezing mechanism 4 backward, and the squeezing bag falls between the blocking mechanism 2 and the squeezing mechanism 4. The transmission mechanism 5 is started to move the squeezing mechanism 4 forward, and the squeezing bag is squeezed by the blocking mechanism 2 and the squeezing mechanism 4, and the oil is squeezed out of the squeezing bag; Step 3: The grease drips downwards and flows into the receiving mechanism 1. As the squeezing mechanism 4 squeezes and extracts, the squeeze bag is squeezed by the blocking mechanism 2 and the squeezing mechanism 4 to become thinner. The transmission mechanism 5 starts the squeezing mechanism 4 to move backwards. As the squeezing mechanism 4 moves backwards, the receiving mechanism 3 moves forwards, and the squeeze bag falls downwards onto the receiving mechanism 3. The squeeze bag rolls backwards with the receiving mechanism 3 to obtain an oil column. Step 4, crushing the oil column to 20-40 mesh, and then performing supercritical CO2 extraction, the extraction pressure is 25-30MPa, the extraction temperature is 45-55°C, the extraction time is 1-2 hours, and the extracted oil is obtained; Step 5: Refining the virgin oil: heat the virgin oil to 50-60°C, add 8%-12% phosphoric acid solution, stir for 20-30 minutes, let stand for 2-3 hours, remove the colloid by filtering, then add 10%-15% sodium hydroxide solution at the oil temperature of 70-80°C, stir for 20-30 minutes, let stand for 2-3 hours, separate the soap stock, and further wash the deacidified oil with hot water to remove the residual Alkali liquor and soap stock are used to remove the water in the washed oil by vacuum drying to reduce the water content to below 0.1%. At an oil temperature of 100-110°C and a vacuum degree of 0.08-0.1MPa, activated white clay is added and stirred for 20-30 minutes. Then, the adsorbent is removed by filtration for decolorization. At a temperature of 230-250°C and a vacuum degree of 0.06-0.08MPa, water vapor is introduced for deodorization for 1-2 hours to remove odorous substances. The extracted oil is refined, the solvent used in the extraction process is recovered by reduced pressure distillation, cooled to 5-10°C to allow wax crystals to precipitate, the wax is separated by centrifugation, and degumming is performed by adding phosphoric acid solution at 50-60°C, followed by deacidification in the same steps as the virgin oil, the alkali-refined oil is washed with water to remove residual alkali liquid, and then dried, and finally a decolorizing agent is added to decolorize at 110-120°C and a vacuum degree of 0.09-0.1MPa, and deodorization is performed at 240-260°C and a vacuum degree of 0.05-0.07MPa for 2-3 hours, thereby obtaining refined pressed oil and extracted oil, which are then filled.

[0025] Please see attached Figure 2 - Attachment Fig.10 The receiving mechanism 1 includes a bottom plate 102, and an oil receiving seat 101 is fixedly connected to the top of the bottom plate 102; The blocking mechanism 2 includes a connecting seat 203, two first support members 201 are fixedly connected to the rear side of the connecting seat 203, two blocking rollers 202 are rotatably connected between the two first support members 201, the left ends of the two blocking rollers 202 are fixedly connected to the first chain plate 204, and the surfaces of the two upper and lower adjacent first chain plates 204 are meshedly connected with the first chain 205.

[0026] The oil receiving seat 101 is mainly used to receive the grease dripping from the squeezing process, and provides a collection container for the grease to ensure that the grease can be stably collected. The bottom plate 102 supports and fixes the oil receiving seat 101, ensuring the overall stability of the receiving mechanism 1, so that the oil receiving seat 101 can accurately receive the grease during the squeezing process. The first support member 201, a fixed component on the rear side of the connecting seat 203, is used to support and fix the blocking roller 202, ensuring that the blocking roller 202 is in a stable position during operation, and can effectively block and position the squeeze bag. The blocking roller 202 is driven by the motor power device and rotates synchronously through the transmission action of the first chain plate 204 and the first chain 205, thereby blocking and positioning the squeeze bag. At the same time, it assists the squeezing mechanism 4 to squeeze the squeeze bag and improve the squeezing effect. The connecting seat 203, as the main frame of the blocking mechanism 2, plays the role of connecting and fixing other components so that the blocking mechanism 2 can work stably as a whole. The first chain plate 204 is installed at the left end of the blocking roller 202 and is meshed with the first chain 205 to transmit power to the blocking roller 202, so that it can rotate synchronously. The first chain 205 connects the two adjacent first chain plates 204 above and below, and transmits power from the driving device to the blocking roller 202 through meshing transmission, thereby ensuring the coordinated rotation of the blocking roller 202.

[0027] The receiving mechanism 3 includes two second racks 303, the bottoms of the two second racks 303 are meshed with gears 301, the bottoms of the two gears 301 are meshed with first racks 302, and a receiving plate 304 is fixedly connected between the two first racks 302; The gear 301 is meshed with the second rack 303 and the first rack 302. When the second rack 303 moves, the transmission action of the gear 301 drives the first rack 302 to move, so that the receiving plate 304 can move forward and backward. The first rack 302 is meshed with the bottom of the gear 301. Under the rotation of the gear 301, the receiving plate 304 is driven to move forward, accurately catching the squeezed bag dropped from the extrusion place, and rolling backward in the subsequent action to achieve the transfer and subsequent processing of the squeezed bag. The second rack 303 is located at the rear side of the sliding seat 407 and is fixedly connected to the sliding seat 407. It moves with the movement of the extrusion mechanism 4 to provide power input for the action of the receiving mechanism 3. The receiving plate 304 is used to catch the dropped squeezed bag and rolls backward with the action of the receiving mechanism 3 to achieve the transfer and subsequent processing of the squeezed bag.

[0028] The extrusion mechanism 4 includes a sliding seat 407, a pressure roller assembly 401 is installed on the front side of the sliding seat 407, a driving assembly 406 is installed on the bottom of the inner wall of the sliding seat 407, and fixing parts 405 are fixedly connected to the left and right sides of the sliding seat 407. The inner diameters of the two fixing parts 405 are fixedly connected to threaded sleeves 404.

[0029] The blocking block 4011 is installed on the front side of the outer surface of the second support member 4012, and is used to limit the position of the squeeze bag during the squeezing process to prevent it from sliding forward, thereby ensuring the stability and effectiveness of the squeezing process. The second support member 4012 is connected to the squeezing roller 4013 and the sliding seat 407, and provides support and fixation for the squeezing roller 4013, so that the squeezing roller 4013 can rotate stably under the drive of the driving component 406 to squeeze the squeezing bag. The squeezing roller 4013 rotates under the action of the driving component 406 to squeeze the squeezing bag between the blocking mechanism 2 and the squeezing mechanism 4 to squeeze out the grease. The second chain 402 connects the two second chain plates 403 adjacent to each other in the front and rear, and transmits the power of the driving assembly 406 to the squeezing roller 4013 through meshing transmission, so that the squeezing roller 4013 can be rotated. The second chain plates 403 are respectively installed at the connecting shaft 4062 and the left and right ends of the squeezing roller 4013. Through the connection of the second chain 402, the power transmission is realized, and the squeezing roller 4013 is driven to rotate. The threaded sleeve 404 is fixed on the inner diameter of the fixing member 405, and is threadedly connected with the threaded column 507 in the transmission mechanism 5, and the rotational motion of the threaded column 507 is converted into the linear motion of the squeezing mechanism 4, so that the squeezing mechanism 4 can move forward and backward. The fixing member 405 connects the sliding seat 407 and the threaded sleeve 404, and plays the role of fixing and supporting the threaded sleeve 404, ensuring that the threaded sleeve 404 can stably cooperate with the threaded column 507 to realize the movement of the squeezing mechanism 4. The first drive motor 4061 serves as a driving source, providing power for the rotation of the squeezing roller 4013, and drives the second chain plate 403 to rotate through the connecting shaft 4062, so that the squeezing roller 4013 rotates to squeeze the squeeze bag. The connecting shaft 4062 connects the output end of the first drive motor 4061 and the second chain plates 403 at the left and right ends of the squeezing roller 4013, and transmits the power of the first drive motor 4061 to the second chain plates 403, thereby driving the squeezing roller 4013 to rotate. The sliding seat 407 serves as the main frame of the squeezing mechanism 4, and is equipped with a squeezing roller assembly 401 and a driving assembly 406, and is connected to the threaded sleeve 404 through a fixing member 405. Under the action of the transmission mechanism 5, it can move back and forth, driving the squeezing roller assembly 401 to squeeze the squeezing bag.

[0030] The transmission mechanism 5 includes four reinforcement members 501, and a transmission shaft 504 is fixedly connected between two adjacent reinforcement members 501, and the opposite ends of the two transmission shafts 504 are fixedly connected to the second bevel gear 503, and the adjacent ends of the two transmission shafts 504 are fixedly connected to the third bevel gear 508, and the surfaces of the two second bevel gears 503 are meshed with the first bevel gear 502, and the rear ends of the two first bevel gears 502 are fixedly connected to the threaded column 507, and the threaded column 507 is threadedly connected to the threaded sleeve 404.

[0031] The reinforcement member 501 connects two adjacent transmission shafts 504, plays a role in strengthening the overall structural strength of the transmission mechanism, and ensures the stability and reliability of the transmission mechanism during operation. The first bevel gear 502 is meshed with the second bevel gear 503, and the power of the transmission shaft 504 is transmitted to the threaded column 507, so that it rotates, thereby pushing the extrusion mechanism 401 to move. The second bevel gear 503 is installed at one end of the transmission shaft 504, meshed with the first bevel gear 502, and the power of the transmission shaft 504 is transmitted to the first bevel gear 502, thereby driving the threaded column 507 to rotate, and the transmission shaft 504 rotates under the drive of the second drive motor 505; The power is transmitted to the first bevel gear 502 and the threaded column 507 through the second bevel gear 503 and the third bevel gear 508 thereon, so as to realize the movement of the extrusion mechanism 401. The second drive motor 505 serves as the power source of the transmission mechanism, and outputs power through the reducer 506 to drive the transmission shaft 504 to rotate, thereby providing power for the entire transmission process. The reducer 506 connects the output end of the second drive motor 505 and the transmission shaft 504, reduces the rotation speed of the second drive motor 505, increases the output torque, and enables the transmission shaft 504 to obtain stable and appropriate power, thereby ensuring the normal operation of the transmission mechanism. The threaded column 507 is threadedly connected with the threaded sleeve 404 on the extrusion mechanism 401; The transmission shaft 504 rotates, converting the rotational motion into the linear motion of the extrusion mechanism 401, thereby realizing the forward and backward movement of the extrusion mechanism 401. The third bevel gear 508 is installed at one end adjacent to the transmission shaft 504, meshingly connected with the output end of the reducer 506, and transmits the power output by the reducer 506 to the transmission shaft 504, thereby driving the transmission shaft 504 to rotate.

[0032] A second drive motor 505 is fixedly connected to the front side of the connecting seat 203 , a reducer 506 is fixedly connected to the output end of the second drive motor 505 , the output end of the reducer 506 is meshedly connected to two third bevel gears 508 , and the reducer 506 is fixedly connected to the connecting seat 203 .

[0033] The two second racks 303 are both located at the rear side of the sliding seat 407 , and the two second racks 303 are both fixedly connected to the sliding seat 407 .

[0034] The pressure roller assembly 401 includes a squeezing roller 4013, and the left and right sides of the squeezing roller 4013 are rotatably connected to the second support members 4012, and the two second support members 4012 are fixedly connected to the sliding seat 407, and the front sides of the outer surfaces of the two second support members 4012 are fixedly connected to the blocking blocks 4011; The driving assembly 406 includes a first driving motor 4061, which is fixedly connected to the sliding seat 407. The output end of the first driving motor 4061 is fixedly connected to a connecting shaft 4062. The connecting shaft 4062 and the left and right ends of the extrusion roller 4013 are fixedly connected to the second chain plate 403, and the second chain 402 is meshed and connected between the outer surfaces of two adjacent second chain plates 403.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient preparation method of high oleic peanut oil, characterized in that: The following steps are involved: Step 1: Select peanut varieties with higher oleic acid content, screen the peanuts, remove impurities, damaged and moldy peanuts, wash the screened peanuts, and then dry them in a low-temperature drying environment until the moisture content is 5% to 8%; Step 2, the dried peanuts are crushed into 4-6 pieces, and then the crushed peanut pieces are transported downward, received by a cylindrical squeezing bag made of nylon filter cloth, and the opening is fixed, and then the transmission mechanism (5) in the squeezing device is started to push the squeezing mechanism (4) backward, and the squeezing bag further falls between the blocking mechanism (2) and the squeezing mechanism (4), and the transmission mechanism (5) is started to move the squeezing mechanism (4) forward, and the squeezing bag is squeezed by the blocking mechanism (2) and the squeezing mechanism (4), and the oil is squeezed out of the squeezing bag; Step 3: the grease drips downwards and flows into the receiving mechanism (1). As the squeezing mechanism (4) squeezes and extracts, the squeeze bag is squeezed by the blocking mechanism (2) and the squeezing mechanism (4) to become thinner. The transmission mechanism (5) starts the squeezing mechanism (4) to move backwards. As the squeezing mechanism (4) moves backwards, the receiving mechanism (3) moves forwards, and the squeeze bag falls downwards onto the receiving mechanism (3). The squeeze bag rolls backwards along with the receiving mechanism (3), thereby obtaining an oil column. Step 4, crushing the oil column to 20-40 mesh, and then performing supercritical CO2 extraction, the extraction pressure is 25-30MPa, the extraction temperature is 45-55°C, the extraction time is 1-2 hours, and the extracted oil is obtained; Step 5: Refining the virgin oil and the extracted oil separately to obtain refined pressed oil and extracted oil, which are then bottled.

2. The method for efficiently preparing high oleic peanut oil according to claim 1, characterized in that: The receiving mechanism (1) comprises a bottom plate (102), and the top of the bottom plate (102) is fixedly connected to an oil receiving seat (101); The blocking mechanism (2) comprises a connecting seat (203), two first support members (201) are fixedly connected to the rear side of the connecting seat (203), two blocking rollers (202) are rotatably connected between the two first support members (201), the left ends of the two blocking rollers (202) are fixedly connected to a first chain plate (204), and the surfaces of two upper and lower adjacent first chain plates (204) are meshedly connected to a first chain (205).

3. The method for efficiently preparing high oleic peanut oil according to claim 1, characterized in that: The receiving mechanism (3) comprises two second racks (303), the bottoms of the two second racks (303) are meshedly connected with gears (301), the bottoms of the two gears (301) are meshedly connected with first racks (302), and a receiving plate (304) is fixedly connected between the two first racks (302).

4. The method for efficiently preparing high oleic peanut oil according to claim 1, characterized in that: The extrusion mechanism (4) comprises a sliding seat (407), a pressing roller assembly (401) is installed on the front side of the sliding seat (407), a driving assembly (406) is installed on the bottom of the inner wall of the sliding seat (407), and fixing members (405) are fixedly connected to the left and right sides of the sliding seat (407), and threaded sleeves (404) are fixedly connected to the inner diameters of the two fixing members (405).

5. The method for efficiently preparing high oleic peanut oil according to claim 1, characterized in that: The transmission mechanism (5) comprises four reinforcement members (501), a transmission shaft (504) being fixedly connected between two adjacent reinforcement members (501), a second bevel gear (503) being fixedly connected to opposite ends of the two transmission shafts (504), a third bevel gear (508) being fixedly connected to adjacent ends of the two transmission shafts (504), a first bevel gear (502) being meshedly connected to surfaces of the two second bevel gears (503), a threaded column (507) being fixedly connected to rear ends of the two first bevel gears (502), and the threaded column (507) being threadedly connected to the threaded sleeve (404).

6. The method for efficiently preparing high oleic peanut oil according to claim 2, characterized in that: A second drive motor (505) is fixedly connected to the front side of the connecting seat (203); a reducer (506) is fixedly connected to the output end of the second drive motor (505); the output end of the reducer (506) is meshingly connected to two third bevel gears (508); and the reducer (506) is fixedly connected to the connecting seat (203).

7. The method for efficiently preparing high oleic peanut oil according to claim 3, characterized in that: The two second racks (303) are both located at the rear side of the sliding seat (407), and the two second racks (303) are both fixedly connected to the sliding seat (407).

8. The method for efficiently preparing high oleic peanut oil according to claim 4, characterized in that: The pressure roller assembly (401) comprises a squeezing roller (4013), the left and right sides of the surface of the squeezing roller (4013) are rotatably connected to second support members (4012), the two second support members (4012) are fixedly connected to the sliding seat (407), and the front sides of the outer surfaces of the two second support members (4012) are fixedly connected to blocking blocks (4011); The driving assembly (406) comprises a first driving motor (4061), the first driving motor (4061) is fixedly connected to a sliding seat (407), an output end of the first driving motor (4061) is fixedly connected to a connecting shaft (4062), the connecting shaft (4062) and the left and right ends of the squeezing roller (4013) are fixedly connected to second chain plates (403), and a second chain (402) is meshedly connected between the outer surfaces of two adjacent second chain plates (403) in front and behind.

9. The method for efficiently preparing high oleic peanut oil according to claim 1, characterized in that: In the step 5, the virgin oil refining process comprises the following steps: Heat the virgin oil to 50-60°C, add 8% to 12% phosphoric acid solution, stir for 20 to 30 minutes, and then let it stand for 2 to 3 hours; Remove the colloid by filtering, then add 10% to 15% sodium hydroxide solution at an oil temperature of 70-80°C, stir for 20 to 30 minutes, let stand for 2-3 hours, and separate the soap nuts; The deacidified oil is further washed with hot water to remove residual alkali and saponins, and the water in the washed oil is removed by vacuum drying to reduce the water content to below 0.1%, and activated white clay is added at an oil temperature of 100-110°C and a vacuum degree of 0.08-0.1MPa, and stirred for 20-30 minutes, and then filtered to remove the adsorbent for decolorization; At a temperature of 230-250°C and a vacuum degree of 0.06-0.08MPa, water vapor is introduced for deodorization for 1-2 hours to remove odorous substances and complete the refining of the virgin oil.

10. The method for efficiently preparing high oleic peanut oil according to claim 1, characterized in that: In the step 5, the extraction oil refining process comprises the following steps: The solvent used in the extraction process is recovered by vacuum distillation, cooled to 5-10°C to allow the wax to crystallize, separated by centrifugation, and degummed by adding phosphoric acid solution at 50-60°C; After that, the oil is deacidified in the same way as the virgin oil, and the alkali-refined oil is washed with water to remove the residual alkali solution, and then dried; Finally, a decolorizing agent is added to carry out decolorization at 110-120° C. and a vacuum degree of 0.09-0.1 MPa, and deodorization is carried out at 240-260° C. and a vacuum degree of 0.05-0.07 MPa for 2-3 hours to obtain refined extracted oil.

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