Full-automatic intelligent grinding and stirring equipment and process

Abstract

The invention relates to the field of grinding and stirring, in particular to full-automatic intelligent grinding and stirring equipment and technology.The full-automatic intelligent grinding and stirring equipment comprises a table top and a supporting frame at the bottom of the table top, a stirring mechanism, a grinding device and a heating type automatic water injection device are arranged on the table top, and the grinding device comprises a coarse grinding mechanism and a fine grinding mechanism; materials are sequentially ground by the coarse grinding mechanism and the fine grinding mechanism and then enter the stirring mechanism. The full-automatic intelligent grinding and stirring process is carried out through the equipment and comprises the following steps: S1, rough grinding; s2, accurate grinding; and S3, taking oil. The grinding particle size of materials can be reduced, the uniformity of the grinding particle size of the materials can be improved, the oil extraction rate is increased, and the automation degree is high; the water in the stirring bin can be almost completely absorbed by the oil residue mass, the extracted oil has an extremely high purity rate, the prepared oil does not need to be refined, can be directly filled for use, is high-end nutritional oil which can be directly eaten, and is relatively high in oil extraction rate and oil extraction efficiency.

Description

Technical Field

[0001] The present application relates to the field of grinding and mixing, and in particular to a fully automatic intelligent grinding and mixing equipment and process. Background Art

[0002] Water replacement is a traditional oil production technology. It mainly uses the difference in the "affinity" of non-oil components (proteins and carbohydrates) in oil to oil and water, as well as the different densities of oil and water to separate oil and protein at the same time. This technology is mainly used in the production of sesame oil. Through operations such as mixing oil with water, shaking oil, and stabilizing oil, gravity is used to make wet sesame residue sink and oil float. The whole process takes 8 to 12 hours. This method can also be used to extract oils such as walnuts, tea oil, and peanuts. However, due to the complex oil extraction process, low oil extraction efficiency, and the formation of a large amount of wastewater after oil extraction, there is currently a lack of relevant equipment, resulting in few applications in production. The production process usually involves grinding the oil through a grinding and stirring device, and adding a certain amount of hot water to the grinding and stirring device for stirring and oscillation. During the stirring and oscillation process, water will replace the oil in the oil. Finally, the replaced oil and oil residue are separated to obtain vegetable oil.

[0003] For example, a Chinese patent with announcement number CN116836753A discloses a device for extracting oil by water substitution method, which includes a table top and a supporting frame at the bottom thereof, the table top is partially concave to form a stirring tank, a grinding device for grinding oil and a heated automatic water injection device for adding water to the stirring tank are arranged on the table top, and the discharge port of the grinding device is located above the stirring mechanism; a first driving mechanism, a second driving mechanism and a first receiving box are arranged inside the supporting frame, a heating device is arranged at the bottom of the stirring tank, a stirring rod is arranged in the stirring tank, the stirring rod includes a rotating shaft and a spiral blade on the rotating shaft, the rotating shaft transversely passes through two opposite side plates of the stirring tank and is rotatably connected to the two side plates, and the spiral blade is arranged on the rotating shaft between the two side plates; the first driving mechanism is transmission-connected to the rotating shaft; a discharge gate is arranged on the stirring tank, and the second driving mechanism is used to control the opening degree of the discharge gate; the first receiving box opens upward and is arranged below the discharge gate.

[0004] The oil is ground by the grinding device, and after the ground oil falls into the stirring tank, the first driving mechanism drives the stirring rod to stir the oil, and at the same time, the heating device heats the oil evenly; then pure water is automatically added through the heating automatic water injection device, and the first driving mechanism drives the stirring rod to rotate alternately in forward and reverse directions, and continues to stir for a certain period of time. During this stirring process, the emulsified protein in the oil absorbs pure water and releases oil, and the oil after absorbing water will gradually form a mass after being squeezed; the second driving mechanism drives the gate to open slightly (the degree of opening is much smaller than the size of the mass oil residue), and at the same time, the first driving mechanism drives the stirring rod to change the rotation mode, so that the spiral blade transports the mass oil residue to the end away from the gate, and it will not accumulate at the gate to affect the outflow of oil from the gate, and the first receiving box below catches the leaked oil, thereby realizing the water substitution method for extracting oil.

[0005] The finer and more uniformly the material is ground by the grinding device, the more complete the oil can be extracted. However, the grinding device in the related technology usually adopts a grain grinder purchased directly from the market. The particle size of the material after being ground by the grain grinder is larger and the uniformity is lower, resulting in a low oil yield and waste. Summary of the invention

[0006] In order to reduce the particle size of the material being ground and improve the uniformity of the particle size of the material being ground, and to increase the oil yield, the present application provides a fully automatic intelligent grinding and mixing equipment and process.

[0007] In the first aspect, the fully automatic intelligent grinding and mixing equipment provided by the present application adopts the following technical solution: A fully automatic intelligent grinding and stirring device, comprising a table top and a supporting frame at the bottom of the table top, a stirring mechanism, a grinding device and a heated automatic water injection device are arranged on the table top, a material outlet of the grinding device is located above the stirring mechanism, the grinding device comprises a coarse grinding mechanism and a fine grinding mechanism, and the material enters the stirring mechanism after being sequentially ground by the coarse grinding mechanism and the fine grinding mechanism; The rough grinding mechanism comprises a rough grinding chamber, a first cutting blade roller, a second cutting blade roller and a rough grinding drive assembly, wherein the first cutting blade roller and the second cutting blade roller are rotatably installed in the rough grinding chamber through the rough grinding drive assembly and are arranged in parallel, and the rotation directions of the first cutting blade roller and the second cutting blade roller are opposite; a plurality of annular first blanking cutting blades are fixedly arranged on the first cutting blade roller, and a plurality of annular second blanking cutting blades are fixedly arranged on the second cutting blade roller, and the first blanking cutting blades and the second blanking cutting blades are arranged alternately; saw teeth are obliquely arranged on the first blanking cutting blade and the second blanking cutting blade, and the saw teeth are inclined toward the gap in the middle of the first cutting blade roller and the second cutting blade roller; a rough grinding discharge port is arranged at the bottom of the rough grinding chamber; The fine grinding mechanism includes a fine grinding chamber, a feed roller, a grinding roller and a fine grinding drive assembly. The top of the fine grinding chamber is connected to the coarse grinding discharge port. The feed roller and the grinding roller are rotatably installed in the fine grinding chamber through the fine grinding drive assembly and are arranged in parallel. The feed roller and the grinding roller rotate in a direction approaching each other and have different rotation speeds. The circumferential side wall of the feed roller is provided with a first spiral groove, and the grinding roller is provided with a second spiral groove. The bottom of the fine grinding chamber is provided with a fine grinding discharge port, and the fine grinding discharge port is connected to the stirring mechanism.

[0008] By adopting the above technical solution, for the coarse grinding mechanism: using a cutter roller shaft composed of two sets of cutters, using a coarse grinding reduction motor and a gear synchronization structure, the two cutter roller shafts rotate toward the middle at the same speed, thereby forming a mechanism for grabbing and feeding. This mechanism will tear the larger walnut kernels into smaller particles while feeding; and the feeding speed can be controlled by controlling the start, stop, and reversal of the coarse grinding reduction motor; the purpose of fully automatic continuous feeding is achieved. The whole machine has a high degree of automation.

[0009] For the fine grinding mechanism: use a feed roller with spiral grooves and a grinding roller with spiral grooves, and use the fine grinding drive assembly to make the two rollers rotate toward the middle at different speeds. Due to the different speeds of the two rollers, and the different rotation directions and cutting edge directions of the two rollers, the threads on the two rollers will constantly intersect, and a relative cutting force will be formed between the thread grooves, thereby grinding the material particles into fine particles.

[0010] The material goes through two processes, coarse grinding and fine grinding, which helps to reduce the grinding particle size of the material and improve the uniformity of the grinding particle size, thereby increasing the oil yield.

[0011] Optionally, the density of the first spiral groove is less than the density of the second spiral groove, and the first spiral groove and the second spiral groove are both divided into two sections, the spiral directions of the two sections of the first spiral groove are opposite, and the spiral directions of the two sections of the second spiral groove are opposite; Scrapers are installed in the fine grinding chamber. The scrapers are arranged on both sides of the fine grinding chamber in the width direction, and the scrapers on both sides are respectively arranged to align with the feeding roller and the grinding roller.

[0012] By adopting the above technical solution, since the density of the first spiral groove is less than that of the second spiral groove, as the feed roller and the grinding roller rotate, the first spiral groove and the second spiral groove can be continuously staggered, further improving the uniformity and fineness of material grinding; and the first spiral groove and the second spiral groove are divided into two sections, which helps to concentrate the material to the middle after grinding, so that the ground material can enter the stirring mechanism. In addition, the oil has a certain viscosity after being ground, and it is easy to adhere to the peripheral side walls of the feed roller and the grinding roller. The scraper can scrape the material on the feed roller and the grinding roller when the feed roller and the grinding roller are grinding the material. On the one hand, it helps to expose the cutting edge on the first spiral groove and the second spiral groove, which is convenient for fine grinding of the material; on the other hand, it helps to continuously discharge the material after grinding and reduce the risk of blockage.

[0013] Optionally, the fine grinding drive assembly includes a fine grinding motor, a synchronous gear set and a transmission gear set, and the synchronous gear set and the transmission gear set are both rotatably arranged on the outer side wall of the fine grinding chamber; The synchronous gear set includes a driving gear, a first driven gear, a second driven gear and a synchronous toothed belt, wherein the driving gear is fixedly arranged on the rotating shaft of the fine grinding motor, the first driven gear is fixedly connected to the end of the feeding roller and is coaxially arranged with the feeding roller, and the synchronous toothed belt is meshed with the driving gear, the first driven gear and the second driven gear at the same time; The transmission gear set includes a first transmission gear and a second transmission gear, the second driven gear drives the first transmission gear to rotate, the second transmission gear is fixedly connected to the end of the grinding roller and is coaxially arranged, and the second transmission gear is meshed with the first transmission gear.

[0014] By adopting the above technical solution, when the feed roller and the grinding roller need to rotate, the fine grinding motor is started, the driving gear rotates, and then the first driven gear and the second driven gear are driven to rotate through the synchronous toothed belt, and the first driven gear drives the feed roller to rotate; the second driven gear drives the first transmission gear and the second transmission gear to rotate, so as to realize the rotation of the grinding roller. Through one driving source, the feed roller and the grinding roller can be rotated at the same time, and the rotation speed of the feed roller and the grinding roller can be controlled by controlling the diameter of the first driven gear and the second transmission gear. The structure is simple and compact, occupies little space, and is easy to operate.

[0015] Optionally, the synchronous gear group and the transmission gear group are respectively located on both sides of the grinding chamber, and the fine grinding mechanism also includes an adjusting component, the adjusting component includes a slider and a driving unit, the slider is arranged at both ends of the grinding roller, and the two ends of the grinding roller are rotatably connected to the corresponding sliders through bearings, and a sliding groove for the slider to slide is opened on the side wall of the grinding chamber, and the driving unit is used to drive the slider to slide, and the sliding direction of the slider is close to or away from the feed roller.

[0016] By adopting the above technical solution, since the particle size of the material required for fine grinding is small, the distance between the feed roller and the grinding roller needs to be small, so a method of fine-tuning the distance between the grinding roller and the feed roller is provided, so that after the grinding device is used for a long time, the material can still be accurately controlled to be in a small fine grinding particle size. The method is to control the sliding of the slider through the driving part, so that the grinding roller slides close to or away from the feed roller, and the distance between the grinding roller and the feed roller is adjusted.

[0017] Optionally, the grinding chamber is surrounded by a front side plate, a rear side plate and two side plates arranged opposite to each other, the two ends of the feeding roller are correspondingly connected to the side plates through bearings, and the slide groove is provided on the side plates; the side plates and the front side plates are detachably connected; The side plate is also provided with a mounting groove, one side of which is connected to the slide groove, and the other side of which passes through the end surface of the side plate close to the front side plate, and the width of the mounting groove is greater than the width of the slide groove; a mounting plate is fixedly and detachably installed in the mounting groove, and the mounting plate is blocked at the opening of the slide groove; The driving part is an adjusting bolt, which passes through and is rotatably connected to the mounting plate. A threaded hole is provided on the slider, one end of the adjusting bolt is threadedly connected to the threaded hole, and the other end of the adjusting bolt is located in the mounting groove; limiting grooves are provided on both sides of the slider, and the limiting grooves are clamped on the side plates at the slide groove.

[0018] By adopting the above technical solution, when the distance between the grinding roller and the feeding roller needs to be fine-tuned, the front side plate is removed from the side plate, and then the adjusting bolt is manually screwed. The pitch of the adjusting bolt can be set according to the actual situation. The rotation of the adjusting bolt drives the slider to slide along the slide groove, and then the distance between the grinding roller and the feeding roller is finely adjusted. By adjusting the driving method of the bolt, compared with the cylinder or oil cylinder, the sliding stroke of the slider can be controlled more finely. By controlling parameters such as the pitch, the adjusting bolt can be rotated multiple times, and the slider only moves a small distance, which helps to finely control the particle size of the oil fine grinding. However, with the cylinder or oil cylinder, a short operation may cause the slider to slide a large distance, and it is not easy to achieve the effect of fine control.

[0019] Optionally, the stirring mechanism includes a stirring chamber, a first stirring shaft, a second stirring shaft, a first reduction motor and a second reduction motor; The fine grinding outlet is connected to the stirring bin, a heating device is provided on the outer wall of the stirring bin, a rotating nozzle is provided on the heating automatic water injection device, and the rotating nozzle is arranged toward the stirring bin; The first stirring shaft and the second stirring shaft are rotatably installed in the stirring chamber and are arranged in parallel. The rotating shaft of the first reduction motor is connected to the first stirring shaft for driving the first stirring shaft to rotate, and the rotating shaft of the second reduction motor is connected to the second stirring shaft for driving the second stirring shaft to rotate; a first spiral blade is fixedly connected to the first stirring shaft, and a second spiral blade is fixedly connected to the second stirring shaft.

[0020] By adopting the above-mentioned technical scheme, when the mixing bin of the present application is in use, oil is added to the mixing bin, the oil in the mixing bin is heated to a specified temperature by a heating device, and then a specified temperature and a certain amount of water is added to the mixing bin by a heating automatic water injection device. Through the setting of the rotating nozzle, water can cover the entire mixing bin in a fan shape in the form of spray, so that water can be added quickly and evenly, and the powder can absorb water quickly and evenly, thereby quickly emulsifying, oiling, and agglomerating, thereby improving the oil yield.

[0021] After the water is added, the temperature in the mixing chamber continues to maintain the specified temperature, and then the first and second mixing shafts are driven to rotate by the first and second reduction motors respectively, and the first and second mixing shafts continuously change the mixing mode. The oil in the mixing chamber continuously changes the movement direction with the first and second spiral blades, the oil is emulsified, the oil is released and agglomerated; the oil and the oil, the oil and the inner wall of the mixing chamber, and the oil and the first and second spiral blades continuously form a state of tearing, kneading, and squeezing.

[0022] Since the temperature and humidity of the protein in the oil have reached the optimal emulsification conditions, the oil is repeatedly torn, rubbed, and squeezed through stirring. The protein in the oil will gradually emulsify. After emulsification, the protein has a high hydrophilic and oleophobic property. Therefore, during the emulsification process, the oil protein will gradually release the oil contained in it. As the emulsification degree becomes higher and higher, the oil released from the oil will become more and more. At the same time, after the protein releases the oil, the oil content itself will become less and less, the viscosity will become higher and higher, and the oil residue will stick together into blocks, shaped like smooth dough.

[0023] When the oil is completely released into the mixing chamber, the emulsified protein has high water absorption and high viscosity, and the agglomerated oil is continuously stirred. The agglomerated protein is constantly rolled left and right in the oil, the purpose is to adhere the residual particles or small pieces of oil residue in the oil to the oil residue, and absorb the residual water in the oil more thoroughly, so as to obtain a clearer and purer oil.

[0024] The first reduction motor and the second reduction motor control the rotation of the first stirring shaft and the second stirring shaft respectively, and various stirring modes can be realized: The oil circulates clockwise: when the first reduction motor and the second reduction motor both rotate counterclockwise, the oil will be driven by the first spiral blade and the second spiral blade to circulate in the clockwise direction.

[0025] Oil circulates counterclockwise: When the first reduction motor and the second reduction motor both rotate clockwise, the oil will be driven by the first spiral blade and the second spiral blade to circulate counterclockwise.

[0026] The oil flows to the left (away from the first reduction motor): when the first reduction motor rotates counterclockwise and the second reduction motor rotates counterclockwise, the oil will be driven by the first spiral blade and the second spiral blade to move to the left.

[0027] The oil flows to the right (towards the direction close to the first reduction motor): when the first reduction motor rotates clockwise and the second reduction motor rotates clockwise, the oil will be driven to the right by the first spiral blade and the second spiral blade.

[0028] Optionally, it further comprises a material receiving mechanism, wherein the material receiving mechanism is arranged on the supporting frame and is located below the stirring mechanism; The material receiving mechanism includes an oil storage tank, a water storage tank, a filter plate, a filling device, a control cylinder and a slag receiving box. One end of the mixing bin is connected to a diverter plate through a frame rotation. The tail end of the control cylinder is hinged to the end of the mixing bin. The piston end of the control cylinder is hinged to the diverter plate to drive the diverter plate to rotate. The diverter plate is arranged directly below the oil outlet. The oil storage tank and the water storage tank are arranged in parallel and are respectively located below the two ends of the diversion plate; the filter plate is arranged on the oil storage tank, and the filling device is connected to the oil storage tank through a pipeline to extract oil for filling; the residue receiving box is located below the oil residue outlet to receive the oil residue.

[0029] By adopting the above technical solution, after the oil is taken out of the mixing chamber, the oil falls from the oil outlet. At this time, the diverter disc is rotated to an inclined position by controlling the air cylinder, and the lowest end of the diverter disc is located directly above the oil storage tank. The oil falls along the diverter disc, and enters the oil storage tank after being filtered by the filter disc. The filling device extracts the oil for filling to obtain the finished oil product. The oil residue falls from the oil residue outlet and enters the residue receiving box. When the mixing chamber needs to be cleaned, the diverter disc is rotated to the lowest end of the diverter disc directly above the water storage tank by controlling the air cylinder. At this time, the cleaning wastewater in the mixing chamber falls into the water storage tank along the diverter disc, and will not pollute the oil in the oil storage tank.

[0030] Optionally, the bottom wall of the stirring bin is arranged in an arc shape to form two unit bins, and the first stirring shaft and the second stirring shaft are respectively located in the two unit bins; the side walls at both ends of the unit bin are respectively provided with an oil residue outlet and an oil liquid outlet, and the oil residue outlet and the oil liquid outlet are arranged near the lowest point of the side walls of the unit bin; A slag discharge drive assembly and an oil discharge drive assembly are provided outside the mixing bin; an oil slag baffle is movably provided at the oil slag outlet through the oil slag drive assembly, and the oil slag baffle is used to block or open the oil slag outlet; an oil liquid baffle is movably provided at the oil liquid outlet through the oil discharge drive assembly, and the oil liquid baffle is used to block or open the oil liquid outlet; The bottom wall of the stirring bin is tilted, and the lowest end of the bottom wall of the stirring bin is located at the oil outlet.

[0031] By adopting the above technical solution, after the oil in the mixing chamber becomes clearer and purer, the oil and slag are discharged in sequence: When draining the oil: after the first stirring shaft and the second stirring shaft run to push the oil residue mass to one end of the stirring bin close to the oil residue baffle, the first stirring shaft and the second stirring shaft stop rotating, and the oil baffle moves to open the oil outlet to drain the oil; since the stirring bin as a whole is inclined toward the direction of the oil outlet, the oil will flow out through the oil outlet in the inclined direction.

[0032] Then the first stirring shaft and the second stirring shaft rotate in opposite directions, so that the oil residue mass moves toward the oil outlet, but does not move to the oil outlet, and then the rotation direction of the first stirring shaft and the second stirring shaft is changed to push the oil residue mass to the end of the stirring bin close to the oil residue baffle, and the first stirring shaft and the second stirring shaft stop rotating for a period of time to perform secondary oil release; the secondary oil release step is repeated many times until the oil release is completed. In order to avoid the formation of grooves between the oil residue mass and the spiral blades, which may prevent the oil from flowing out, the secondary oil release step will be repeated many times during the oil release process to change the posture and angle of the oil residue mass and improve the adequacy of oil release.

[0033] During slag discharge: after the oil is discharged, the slag is discharged. The first stirring shaft and the second stirring shaft rotate to push the oil residue mass toward the oil liquid outlet, but not to the oil liquid outlet; then change the rotation direction of the first stirring shaft and the second stirring shaft to push the oil residue mass toward the oil residue outlet; repeat the above steps several times to make the oil residue fragments in the mixing bin adhere to the oil residue mass as much as possible; then the oil residue baffle moves until the oil residue outlet is opened, and the first stirring shaft and the second stirring shaft rotate to push the oil residue mass out of the oil residue outlet to complete the slag discharge.

[0034] In order to more thoroughly distinguish between oil and oil residue, the oil liquid outlet and oil residue outlet are independently set at the left and right ends of the mixing chamber. After the entire mixing chamber is installed, the mixing chamber is tilted in the direction of oil outlet, which facilitates the smooth flow of oil from the oil outlet to achieve solid-liquid separation.

[0035] In the second aspect, the fully automatic intelligent grinding and mixing process provided by the present application adopts the following technical solution: A fully automatic intelligent grinding and stirring process, using the above equipment, comprises the following steps: S1. Coarse grinding: pour the material into the coarse grinding chamber, the material contacts the first feed cutter and the second feed cutter, the coarse grinding drive assembly drives the first cutter roller and the second cutter roller to rotate toward the middle gap, the first feed cutter and the second feed cutter tear the larger particles of the material into smaller particles, and under the action of the saw teeth, the material torn into smaller particles is grabbed by the first cutter roller and the second cutter roller toward the middle gap and moves downward, so as to achieve coarse grinding and automatically feed the fine grinding chamber below; When the surface of part of the material is ground to be relatively smooth and cannot be grasped and moved downward, the rough grinding drive assembly drives the first cutting knife roller and the second cutting knife roller to rotate in the opposite direction away from the middle gap, and controls the rotation speed and direction of the first cutting knife roller and the second cutting knife roller to change the posture and angle of the material that is not easy to move downward, and then makes the first cutting knife roller and the second cutting knife roller rotate forward to grasp, so as to perform fully automatic continuous rough grinding and feeding; S2, fine grinding: the coarsely ground material enters the fine grinding chamber, the material contacts the feed roller and the grinding roller, the fine grinding drive assembly drives the feed roller and the grinding roller to rotate, the feed roller and the grinding roller rotate in a direction close to each other and at different speeds, so that the cutting edges of the first spiral groove and the second spiral groove are in different directions, the thread lines on the first spiral groove and the second spiral groove continuously intersect, and a relative cutting force is formed between the first spiral groove and the second spiral groove, so that the coarsely ground material particles are finely ground to achieve fine grinding, and the particle size of the powder after fine grinding is 60-80 mesh; S3, oil extraction: (1) Preheating stage: After the finely ground material completely enters the mixing chamber, the heating device is started to control the temperature in the mixing chamber to 65-72°C. At the same time, the first mixing shaft and the second mixing shaft rotate around their own axes, pushing the powder in clockwise and counterclockwise cycles alternately. When the material reaches the water adding condition, that is, the material is evenly heated to 65-72℃, it automatically enters the water adding stage; (2) Water adding stage: After the water adding conditions are met, the rotation direction of the first stirring shaft and the second stirring shaft changes, and the material is pushed in a counterclockwise cycle continuously; the heating automatic water injection device automatically operates, and when the water addition amount reaches 13-16% of the oil mass, the water addition is completed and the oil extraction stage is automatically entered; (3) Oil extraction stage: After the water is added, the temperature in the mixing chamber continues to maintain 65-72℃, and the first and second mixing shafts continuously change the mixing mode; the material in the mixing chamber continuously changes the movement direction with the first and second spiral blades, the material is emulsified, the oil is released and agglomerated, and the equipment automatically enters the purification stage; the material and the material, the material and the mixing chamber wall, and the material and the spiral blades are constantly torn, kneaded, and squeezed. Since the temperature and humidity of the material contain protein, they have reached the optimal emulsification conditions, and then they are repeatedly torn, kneaded, and squeezed through the stirring action. The protein will gradually emulsify. After emulsification, the protein has a high hydrophilic and oleophobic property. Therefore, during the emulsification process, the protein will gradually release the oil contained in it. As the emulsification degree increases, the oil released by the oil extraction material will also increase. At the same time, after the protein releases the oil, its own oil content will decrease, the viscosity will increase, and the oil residue will stick together into blocks, like smooth dough. When the oil inside is released almost completely, the oil extraction stage is completed, and the oil extraction stage time is 15 minutes.

[0036] (4) Purification stage: After the oil is completely released into the mixing chamber, the emulsified protein has high water absorption and high viscosity, and the agglomerated material is continued to be stirred. The agglomerated protein is constantly rolled left and right in the oil, the purpose is to adhere the residual particles or small pieces of oil residue in the oil to the oil residue; absorb the residual water in the oil more thoroughly. The oil becomes clearer and purer, and the equipment automatically enters the solid-liquid separation stage; the purification stage time is 2 minutes.

[0037] (5) Oil discharge stage: After the first stirring shaft and the second stirring shaft operate to push the oil residue mass to one end of the stirring bin close to the oil residue baffle, the first stirring shaft and the second stirring shaft stop rotating, and the oil baffle moves to open the oil outlet, and the oil is discharged once; Then the first stirring shaft and the second stirring shaft rotate in opposite directions to move the oil residue mass toward the oil outlet, but not to the oil outlet, and then the rotation directions of the first stirring shaft and the second stirring shaft are changed to push the oil residue mass to one end of the stirring bin close to the oil residue baffle, and the first stirring shaft and the second stirring shaft stop rotating for a period of time to perform secondary oil discharge; Repeat the secondary oil discharge step many times until the oil discharge is completed and the slag discharge stage begins; the oil discharge stage lasts for 3 minutes. Since the mixing chamber is tilted toward the oil outlet as a whole, the oil will flow out through the oil outlet along the tilt direction. In order to avoid the formation of grooves between the oil residue group and the spiral blades, which will prevent the oil from flowing out, the secondary oil discharge step will be repeated many times during the oil discharge process to change the posture and angle of the oil residue group and improve the adequacy of oil discharge.

[0038] (6) Slag discharge stage: the first stirring shaft and the second stirring shaft rotate to push the oil residue mass toward the oil liquid outlet, but not to the oil liquid outlet; then the rotation direction of the first stirring shaft and the second stirring shaft is changed to push the oil residue mass toward the oil residue outlet; the above steps are repeated multiple times; then the oil residue baffle moves until the oil residue outlet is opened, and the first stirring shaft and the second stirring shaft rotate to push the oil residue mass toward the oil residue outlet, thereby completing the slag discharge; (7) Filling stage: After the oil falls from the oil outlet, it is filtered along the diverter plate through the filter plate and enters the oil storage tank, and then automatically extracted by the filling device to complete the oil filling and obtain the finished oil product.

[0039] By adopting the above technical solution, the particle size of the finely ground powder is 60-80 meshes. The finer the material particles, the higher the protein emulsification efficiency. Therefore, the oil yield and oil yield efficiency are higher, the oil residue agglomeration effect is better, and the produced oil is purer.

[0040] 65-72℃ is chosen because protein is easy to emulsify at 65℃, and the important beneficial substances in walnut oil - unsaturated fatty acids (linoleic acid and linolenic acid) are very easy to volatilize at high temperatures; while at 72℃, there is less or no volatilization, and the oil yield and efficiency are high.

[0041] After the powder reaches the emulsification condition and forms emulsified protein, it has the characteristics of hydrophilicity and oleophobicity. At the same time, it has high adhesion. Through a specific stirring method, it can not only form a mass by itself, but also adhere other non-protein substances (such as plant fibers) to it, forming a smooth round solid object like dough.

[0042] During the water absorption and emulsification process of the powder, if the amount of water is too much, the powder absorbs too much water, resulting in residual water in the oil, the oil residue mass is not formed, and the oil and oil residue cannot be completely separated. If the amount of water is too little, the powder does not absorb enough water, resulting in incomplete or no oil output. The present application can accurately control the amount of water added, thereby facilitating the emulsification of the oil into a mass and the output of oil.

[0043] In summary, the present application includes at least the following beneficial technical effects: 1. High degree of automation, low temperature pure physical extraction, not only does not destroy the unsaturated fatty acids and trace elements that are beneficial to the body, but also does not contain any additives; by extracting oil through the extraction method of the present application, the water in the stirring bin can be almost completely absorbed by the oil residue mass, and the liquid in the stirring bin contains almost no water except the oil. The extracted oil has an extremely high purity rate and can be directly bottled and used.

[0044] 2. During the stirring oil-making process, the emulsified protein with strong adhesion will bind the impurities and water in the oil into clumps. The produced oil does not need to be refined further and is a high-end nutritional oil that can be eaten directly.

[0045] 3. There is no need to press with the shell on, and the raw materials are easier to clean and disinfect. For example, walnut oil is currently mostly made by pressing with the shell on, and the kernel inside cannot be disinfected.

[0046] 4. Under the premise of the same raw materials, the oil extracted by the process of this application has a longer shelf life than the oil produced by other processes.

[0047] 5. Since the process of this application adopts kernel production, the oil residue after oil extraction has not been subjected to high-temperature ripening and has no other impurities. The oil residue after oil extraction can be used as a raw material for high-end plant protein powder, and can also be used as a raw material for other food additives, such as biscuits and pastries; the raw material utilization rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the overall structure of a fully automatic intelligent grinding and mixing equipment in Example 1.

[0049] Figure 2 It is a schematic diagram used to show the inner structure of the support frame in Example 1.

[0050] Figure 3 It is a schematic diagram of the structure of the grinding device used in Example 1.

[0051] Figure 4 It is a structural schematic diagram used to illustrate the rough grinding mechanism in Example 1.

[0052] Figure 5 It is a schematic diagram of the structure of the first blanking cutter and the second blanking cutter in Example 1.

[0053] Figure 6 It is a structural schematic diagram used to show the sawtooth in Example 1.

[0054] Figure 7 It is a structural schematic diagram used to illustrate the fine grinding drive assembly in Example 1.

[0055] Figure 8 It is a schematic diagram of the structure for displaying the feed roller part after hiding the rear side panel in Example 1.

[0056] Fig. 9 It is a schematic diagram of the structure of the first transmission gear and the second transmission gear in Example 1.

[0057] Fig.10 It is a structural schematic diagram used to illustrate the synchronous gear set in Example 1.

[0058] Fig.11 It is a structural schematic diagram for displaying the slider in Example 1.

[0059] Fig.12It is a structural schematic diagram used to display the adjustment component in Example 1.

[0060] Fig.13 It is a structural schematic diagram used to show the fixing groove in Example 1.

[0061] Fig.14 It is a schematic diagram of the structure of the synchronization rod in Example 1.

[0062] Fig.15 It is a structural schematic diagram used to show the mixing chamber in Example 1.

[0063] Fig.16 This is a bottom view of the mixing bin in Example 1.

[0064] Fig.17 It is a schematic diagram of the structure used to display the unit warehouse in Example 1.

[0065] Fig.18 It is a structural schematic diagram used to show the oil residue outlet in Example 1.

[0066] Fig.19 It is a structural schematic diagram used to show the oil outlet in Example 1.

[0067] Fig. 20 It is a structural schematic diagram used to show the discharging mechanism in Example 1.

[0068] Fig.21 This is a schematic diagram comparing the acid values ​​of three oil extraction methods.

[0069] Fig. 22 This is a schematic diagram comparing the peroxide values ​​of three oil extraction methods.

[0070] Fig.23 This is a schematic diagram of the α-tocopherol determination results of three oil extraction methods.

[0071] Fig.24 This is a schematic diagram of the γ-tocopherol determination results of three oil extraction methods.

[0072] Fig.25 This is a schematic diagram of the squalene determination results of three oil extraction methods.

[0073] Fig.26 This is a schematic diagram of the β-sitosterol determination results of three oil extraction methods.

[0074] Fig. 27 This is a schematic diagram comparing the ingredients such as coenzyme Q10 in different walnut oils.

[0075] Fig.28 This is a schematic diagram of shelf life prediction for different walnut oil extraction methods.

[0076] Fig.29This is a schematic diagram of protein content in three oil extraction methods.

[0077] Fig.30 This is a schematic diagram of the residual oil rate of three oil extraction methods.

[0078] Fig.31 It is a schematic diagram of the results of determining the nutritional index of meal meal according to the stirring method of the present application.

[0079] Description of reference numerals: 1. table; 11. synchronization rod; 2. support frame; 3. stirring mechanism; 31. stirring chamber; 311. unit chamber; 312. oil residue outlet; 3121. oil residue baffle; 313. oil outlet; 3131. oil baffle; 32. first stirring shaft; 321. first spiral blade; 322. connecting plate; 33. second stirring shaft; 331. second spiral blade; 34. first reduction motor; 35. second reduction motor; 4. Grinding device; 41, coarse grinding mechanism; 411, coarse grinding chamber; 412, first cutter roller shaft; 413, second cutter roller shaft; 414, coarse grinding drive assembly; 4141, coarse grinding reduction motor; 4142, gear synchronization structure; 415, first blanking cutter; 416, second blanking cutter; 417, sawtooth; 42, fine grinding mechanism; 421, fine grinding chamber; 4211, front side plate; 4212, rear side plate; 4213, side plate; 4214, installation slot; 4215, fixing block; 4216, plug-in block; 4217, fixing slot; 422, feeding roller; 423, grinding roller; 424, fine grinding drive assembly; 4241, fine grinding motor; 425, first spiral groove; 426, second spiral groove; 427, scraper; 428, mounting plate; 4281, positioning slot; 43, feeding hopper; 5, heating automatic water injection device; 51, rotating nozzle; 6, material receiving mechanism; 61, oil storage tank; 62 , water tank; 63, filter plate; 64, filling device; 65, control cylinder; 66, slag box; 67, diverter plate; 7, synchronous gear set; 71, driving gear; 72, first driven gear; 73, second driven gear; 74, synchronous belt; 8, transmission gear set; 81, first transmission gear; 82, second transmission gear; 9, adjustment assembly; 91, slider; 911, threaded hole; 912, limit groove; 92, slide groove; 93, adjustment bolt. DETAILED DESCRIPTION

[0080] The following is combined with Figure 1-31 This application is described in further detail.

[0081] The embodiments of the present application disclose a fully automatic intelligent grinding and mixing equipment and process.

[0082] Example 1 In the first aspect, the present application discloses a fully automatic intelligent grinding and mixing device: Reference Figure 1-3A fully automatic intelligent grinding and mixing equipment comprises a table 1 and a support frame 2 at the bottom of the table 1. A mixing mechanism 3, a grinding device 4 and a heating automatic water injection device 5 are arranged on the table 1. The discharge port of the grinding device 4 is located above the mixing mechanism 3. The grinding device 4 comprises a coarse grinding mechanism 41 and a fine grinding mechanism 42. The material enters the mixing mechanism 3 after being grinded in sequence by the coarse grinding mechanism 41 and the fine grinding mechanism 42. A material receiving mechanism 6 is installed on the support frame 2, and the material receiving mechanism 6 is located below the mixing mechanism 3. The operation of each part is controlled by PLC to automatically complete its respective functions.

[0083] Reference Figure 2-6 The rough grinding mechanism 41 includes a rough grinding chamber 411, a first cutter roller shaft 412, a second cutter roller shaft 413 and a rough grinding drive assembly 414. A feed hopper 43 is fixedly installed on the top of the rough grinding chamber 411. The first cutter roller shaft 412 and the second cutter roller shaft 413 are rotatably installed in the rough grinding chamber 411 through the rough grinding drive assembly 414 and are arranged in parallel. The first cutter roller shaft 412 and the second cutter roller shaft 413 rotate in opposite directions. The rough grinding drive assembly 414 includes a rough grinding reduction motor 4141 and a gear synchronization structure 4142. The rotating shaft of the rough grinding reduction motor 4141 is fixedly connected to the end of the first cutter roller shaft 412. The end of the first cutter roller shaft 412 is also connected to the end of the second cutter roller shaft 413 through the gear synchronization structure 4142, so that the rough grinding reduction motor 4141 drives the first cutter roller shaft 412 and the second cutter roller shaft 413 to rotate synchronously. A plurality of annular first blanking cutters 415 are fixedly provided on the first cutting roller shaft 412, and a plurality of annular second blanking cutters 416 are fixedly provided on the second cutting roller shaft 413, and the first blanking cutters 415 and the second blanking cutters 416 are alternately provided; saw teeth 417 are obliquely provided on the first blanking cutters 415 and the second blanking cutters 416, and the saw teeth 417 are inclined toward the gap in the middle of the first cutting roller shaft 412 and the second cutting roller shaft 413; a coarse grinding discharge port is provided at the bottom of the coarse grinding chamber 411.

[0084] Reference Figure 2-3 and Figure 7 The fine grinding mechanism 42 includes a fine grinding chamber 421, a feed roller 422, a grinding roller 423 and a fine grinding drive assembly 424. The top of the fine grinding chamber 421 is connected to the coarse grinding discharge port. The feed roller 422 and the grinding roller 423 are rotatably installed in the fine grinding chamber 421 through the fine grinding drive assembly 424 and are arranged in parallel. The feed roller 422 and the grinding roller 423 rotate in a direction approaching each other and have different rotation speeds; a first spiral groove 425 is provided on the peripheral side wall of the feed roller 422, and a second spiral groove 426 is provided on the grinding roller 423; a fine grinding discharge port is provided at the bottom of the fine grinding chamber 421, and the fine grinding discharge port is connected to the stirring mechanism 3.

[0085] For the rough grinding mechanism 41: a cutter roller shaft composed of two sets of cutters is used, and the rough grinding reduction motor 4141 and the gear synchronization structure 4142 are used to make the two cutter roller shafts rotate toward the middle at the same speed, thereby forming a mechanism for grabbing and feeding. This mechanism will tear the larger walnut kernels into smaller particles while feeding; and the feeding speed can be controlled by controlling the start, stop, and reverse rotation of the rough grinding reduction motor 4141; the purpose of fully automatic continuous feeding is achieved, so that the whole machine has a high degree of automation.

[0086] For the fine grinding mechanism 42: a feed roller 422 with a spiral groove and a grinding roller 423 with a spiral groove are used, and the feed roller 422 and the grinding roller 423 are rotated toward the center at different speeds by using the fine grinding drive assembly 424. Since the feed roller 422 and the grinding roller 423 have different speeds, and the feed roller 422 and the grinding roller 423 have different directions of rotation and cutting edges, the threads on the feed roller 422 and the grinding roller 423 will constantly intersect, and a relative cutting force is formed between the thread grooves, thereby grinding the material particles into fine particles.

[0087] The material goes through two processes, coarse grinding and fine grinding, which helps to reduce the particle size of the material and improve the uniformity of the particle size, thereby increasing the oil yield.

[0088] Reference Figure 3 and Figure 7-8 The density of the first spiral groove 425 is less than that of the second spiral groove 426, and the first spiral groove 425 and the second spiral groove 426 are divided into two sections, the spiral directions of the two sections of the first spiral groove 425 are opposite, and the spiral directions of the two sections of the second spiral groove 426 are opposite. Scrapers 427 are installed in the fine grinding chamber 421, and the scrapers 427 are arranged on both sides of the fine grinding chamber 421 in the width direction, and the scrapers 427 on both sides are respectively aligned with the feeding roller 422 and the grinding roller 423.

[0089] Since the density of the first spiral groove 425 is less than that of the second spiral groove 426, as the feed roller 422 and the grinding roller 423 rotate, the first spiral groove 425 and the second spiral groove 426 can be further interlaced, thereby further improving the uniformity and fineness of the material grinding; and the first spiral groove 425 and the second spiral groove 426 are evenly divided into two sections, which helps to concentrate the material to the middle after grinding, so that the ground material can be concentrated into the stirring mechanism 3. In addition, the oil has a certain viscosity after grinding, and it is easy to adhere to the peripheral side walls of the feed roller 422 and the grinding roller 423. The scraper 427 can scrape the material on the feed roller 422 and the grinding roller 423 when the feed roller 422 and the grinding roller 423 grind the material, which helps to expose the cutting edges on the first spiral groove 425 and the second spiral groove 426 on the one hand, so as to facilitate the fine grinding of the material; on the other hand, it helps to continuously discharge the material after grinding and reduce the risk of blockage.

[0090] Reference Figure 7-10 The fine grinding drive assembly 424 includes a fine grinding motor 4241, a synchronous gear set 7 and a transmission gear set 8. The synchronous gear set 7 and the transmission gear set 8 are both rotatably arranged on the outer wall of the fine grinding chamber 421. The synchronous gear set 7 includes a driving gear 71, a first driven gear 72, a second driven gear 73 and a synchronous toothed belt 74. The driving gear 71 is fixedly arranged on the rotating shaft of the fine grinding motor 4241. The first driven gear 72 is fixedly connected to the end of the feed roller 422 and is coaxially arranged with the feed roller 422. The synchronous toothed belt 74 is meshed with the driving gear 71, the first driven gear 72 and the second driven gear 73 at the same time. The transmission gear set 8 includes a first transmission gear 81 and a second transmission gear 82. The second driven gear 73 drives the first transmission gear 81 to rotate. The second transmission gear 82 is fixedly connected to the end of the grinding roller 423 and is coaxially arranged. The second transmission gear 82 is meshed with the first transmission gear 81.

[0091] When the feed roller 422 and the grinding roller 423 need to rotate, the fine grinding motor 4241 is started, the driving gear 71 rotates, and then the first driven gear 72 and the second driven gear 73 are driven to rotate through the synchronous toothed belt 74, and the first driven gear 72 drives the feed roller 422 to rotate; the second driven gear 73 drives the first transmission gear 81 and the second transmission gear 82 to rotate, so as to realize the rotation of the grinding roller 423. Through one driving source, the feed roller 422 and the grinding roller 423 can be rotated at the same time, and the rotation speed of the feed roller 422 and the grinding roller 423 can be controlled by controlling the diameter of the first driven gear 72 and the second transmission gear 82. The structure is simple and compact, the space occupied is small, and the operation is convenient.

[0092] Reference Figure 7-14The synchronous gear set 7 and the transmission gear set 8 are respectively located on both sides of the grinding chamber. A synchronous rod 11 is provided on both sides of the length direction of the fine grinding chamber 421. The synchronous rod 11 is rotatably connected to the side wall of the fine grinding chamber 421 through a bearing, and the synchronous rod 11 is located below the grinding roller 423. The second driven gear 73 and the first transmission gear 81 are respectively connected to the two ends of the synchronous rod 11. The fine grinding mechanism 42 also includes an adjustment component 9, which includes a slider 91 and a driving part. The slider 91 is provided at both ends of the grinding roller 423. Both ends of the grinding roller 423 are rotatably connected to the corresponding slider 91 through a bearing. A slide groove 92 for the slider 91 to slide is provided on the side wall of the grinding chamber. The driving part is used to drive the slider 91 to slide. The sliding direction of the slider 91 is close to or away from the feeding roller 422. Since the particle size of the material required for fine grinding is small, the distance between the feed roller 422 and the grinding roller 423 needs to be small, so a method for finely adjusting the distance between the grinding roller 423 and the feed roller 422 is provided, so that after the grinding device 4 is used for a long time, the material can still be accurately controlled to be in a small fine grinding particle size. The method is to control the sliding block 91 to slide by the driving unit, so that the grinding roller 423 slides close to or away from the feed roller 422, and the distance between the grinding roller 423 and the feed roller 422 is adjusted.

[0093] Reference Figure 7-14 The fine grinding chamber 421 is surrounded by a front side plate 4211, a rear side plate 4212 and two side plates 4213 arranged opposite to each other. Both ends of the feed roller 422 are connected to the side plates 4213 through bearings, and the slide groove 92 is opened on the side plates 4213; the side plates 4213 and the front side plate 4211 are detachably connected by bolts.

[0094] The side plate 4213 is also provided with a mounting groove 4214, one side of which is connected to the slide groove 92, and the other side of which passes through the end surface of the side plate 4213 close to the front side plate 4211, and the width of the mounting groove 4214 is greater than the width of the slide groove 92; a group of fixing blocks 4215 are respectively provided at the two corners of the mounting groove 4214 close to the slide groove 92, and each group of fixing blocks 4215 has two fixing blocks 4215, and the two fixing blocks 4215 in the same group are respectively located on both sides of the thickness direction of the side plate 4213; A plug-in block 4216 is fixedly connected to one side of the two fixed blocks 4215 of the group that are close to each other, and a fixing groove 4217 for the plug-in block 4216 to be plugged into is opened on the side plate 4213. The plug-in blocks 4216 on the two fixed blocks 4215 of the same group are plugged into the same fixing groove 4217; the bottom of the fixing groove 4217 on one side close to the mounting groove 4214 is connected to the mounting groove 4214, and one side of the fixed block 4215 close to the mounting groove 4214 is flush with the side wall of the mounting groove 4214 close to the slide groove 92.

[0095] A mounting plate 428 is provided in the mounting groove 4214, and the mounting plate 428 is blocked at the opening of the slide groove 92. The side of the mounting plate 428 close to the slide groove 92 abuts against the side of the fixing block 4215 close to the mounting groove 4214, and the fixing block 4215 is detachably connected to both ends of the mounting plate 428 by bolts; positioning grooves 4281 are provided at both ends of the mounting plate 428, and the positioning grooves 4281 are clamped on the side plate 4213 at the mounting groove 4214.

[0096] The driving part is an adjusting bolt 93, which passes through and is rotatably connected to the mounting plate 428. No relative displacement occurs between the adjusting bolt 93 and the mounting plate 428 except for rotation. A threaded hole 911 is provided on the slider 91, one end of the adjusting bolt 93 is threadedly connected to the threaded hole 911, and the other end of the adjusting bolt 93 is located in the mounting groove 4214; limiting grooves 912 are provided on both sides of the slider 91, and the limiting grooves 912 are clamped on the side plates 4213 at the slide groove 92.

[0097] When the distance between the grinding roller 423 and the feeding roller 422 needs to be fine-tuned, the front side plate 4211 is disassembled from the side plate 4213, and then the adjusting bolt 93 is manually screwed. The pitch of the adjusting bolt 93 can be set according to the actual situation. The rotation of the adjusting bolt 93 drives the slider 91 to slide along the slide groove 92, and then the distance between the grinding roller 423 and the feeding roller 422 is finely adjusted. By adjusting the driving mode of the bolt 93, compared with the cylinder or oil cylinder, the sliding stroke of the slider 91 can be more finely controlled. By controlling the parameters such as the pitch, the adjusting bolt 93 can be rotated for multiple turns, and the slider 91 only moves a small distance, which is helpful for the fine control of the fine grinding particle size of the oil. However, in the case of the cylinder or oil cylinder, a short operation may cause the slider 91 to slide a large distance, and it is not easy to achieve the effect of fine control.

[0098] In addition, the installation process of the entire adjusting assembly 9 is as follows: the front side plate 4211 is removed from the side plate 4213, and then the slider 91 is inserted into the slide groove 92, and the limiting grooves 912 on both sides of the slider 91 are aligned with the side plate 4213 at the slide groove 92; then the mounting plate 428 is inserted into the mounting groove 4214, and the positioning grooves 4281 at both ends of the mounting plate 428 are aligned with the side plate 4213 at the mounting groove 4214, and then the plug-in blocks 4216 on each fixing block 4215 are correspondingly inserted into the fixing groove 4217, and the fixing block 4215 and the mounting block are locked with bolts to complete the installation of the mounting plate 428; then, the adjusting bolt 93 is passed through and rotatably connected to the mounting plate 428, and the end of the adjusting bolt 93 is threadedly connected to the threaded hole 911 on the slider 91; finally, the front side plate 4211 is fixed to the side plate 4213 to complete the installation of the adjusting assembly 9. When the adjustment component 9 needs to be disassembled or replaced, the above steps can be reversed. The adjustment component 9 is quick and convenient to disassemble and assemble, and has high flexibility.

[0099] When designing the installation method of the mounting plate 428, the setting of the positioning groove 4281 helps to position the mounting plate 428. When fixing the mounting plate 428, if bolts are directly used to vertically pass from the side of the mounting plate 428 in the width direction to connect with the side plate 4213, the thickness of the side plate 4213 is relatively thin, and the mounting plate 428 cannot be stably connected to the side plate 4213. The grinding roller 423 has a large weight and is in a state of motion for a long time. The stability of the installation of the mounting plate 428 is particularly important. Therefore, a fixing block 4215 is provided in the present application, and through the setting of the fixing groove 4217 and the plug-in block 4216, they cooperate with the positioning groove 4281, so that the mounting plate 428 cannot move in the horizontal and vertical directions. The structure is simple and ingenious, easy to disassemble and assemble, and has high stability.

[0100] The synchronous gear set 7 and the transmission gear set 8 are respectively located on both sides of the fine grinding chamber 421, in order to cooperate with the installation of the adjustment component 9 in this method and save installation space.

[0101] Reference Figure 2 and Fig.15 The stirring mechanism 3 includes a stirring bin 31, a first stirring shaft 32, a second stirring shaft 33, a first reduction motor 34 and a second reduction motor 35. The fine grinding outlet is connected to the stirring bin 31. A heating device is provided on the outer wall of the stirring bin 31. In the embodiment of the present application, the heating device adopts a silicone sheet with a built-in electric heating wire. The silicone sheet is pasted on the outside of the bottom of the bin body with imported glue, and the wall of the stirring bin 31 is made of 304 stainless steel. The silicone sheet can heat the oil evenly through the heat transfer effect of the bin wall. A rotating nozzle 51 is provided on the heating automatic water injection device 5, and the rotating nozzle 51 is arranged toward the stirring bin 31. The heating automatic water injection device 5 can be selected and set according to actual conditions, and will not be repeated in the embodiment of the present application. The first stirring shaft 32 and the second stirring shaft 33 are rotatably installed in the stirring chamber 31 and are arranged in parallel. The rotating shaft of the first reduction motor 34 is connected to the first stirring shaft 32 for driving the first stirring shaft 32 to rotate. The rotating shaft of the second reduction motor 35 is connected to the second stirring shaft 33 for driving the second stirring shaft 33 to rotate. The first stirring shaft 32 is fixedly connected with a first spiral blade 321, and the second stirring shaft 33 is fixedly connected with a second spiral blade 331.

[0102] When the mixing bin 31 of the present application is in use, oil is added to the mixing bin 31, and the oil in the mixing bin 31 is heated to a specified temperature by a heating device, and then a specified temperature and a certain amount of water is added to the mixing bin 31 by a heating automatic water injection device 5. Through the setting of the rotating nozzle 51, water can be sprayed in the form of a fan to cover the entire mixing bin 31, so that water can be added quickly and evenly, and the powder can absorb water quickly and evenly, thereby quickly emulsifying, oiling, and agglomerating, thereby improving the oil yield.

[0103] After the water is added, the temperature in the mixing chamber 31 continues to maintain the specified temperature, and then the first and second mixing shafts 32 and 33 are driven to rotate by the first and second reduction motors 34 and 35 respectively, and the first and second mixing shafts 32 and 33 continuously change the mixing mode. The oil in the mixing chamber 31 continuously changes the movement direction with the first and second spiral blades 321 and 331, and the oil is emulsified, the oil is released and agglomerated; the oil and the oil, the oil and the inner wall of the mixing chamber 31, and the oil and the first and second spiral blades 321 and 331 are continuously torn, kneaded, and squeezed.

[0104] Since the temperature and humidity of the protein in the oil have reached the optimal emulsification conditions, the oil is repeatedly torn, rubbed, and squeezed through stirring. The protein in the oil will gradually emulsify. After emulsification, the protein has a high hydrophilic and oleophobic property. Therefore, during the emulsification process, the oil protein will gradually release the oil contained in it. As the emulsification degree becomes higher and higher, the oil released from the oil will become more and more. At the same time, after the protein releases the oil, the oil content itself will become less and less, the viscosity will become higher and higher, and the oil residue will stick together into blocks, shaped like smooth dough.

[0105] When the oil is completely released into the stirring chamber 31, the agglomerated oil is continuously stirred by taking advantage of the fact that the emulsified protein has high water absorption and high viscosity. The agglomerated protein is continuously rolled left and right in the oil, the purpose of which is to adhere the residual particles or small pieces of oil residue in the oil to the oil residue agglomerates, and to absorb the residual water in the oil more thoroughly, so as to obtain a clearer and purer oil.

[0106] The first reduction motor 34 and the second reduction motor 35 respectively control the rotation of the first stirring shaft 32 and the second stirring shaft 33, and can realize various stirring modes: Oil circulates clockwise: When the first reduction motor 34 and the second reduction motor 35 rotate counterclockwise, the oil will be driven by the first spiral blade 321 and the second spiral blade 331 to circulate in the clockwise direction.

[0107] Oil circulates counterclockwise: When the first reduction motor 34 and the second reduction motor 35 rotate clockwise, the oil is driven by the first spiral blade 321 and the second spiral blade 331 to circulate counterclockwise.

[0108] The oil flows to the left (away from the first reduction motor): when the first reduction motor 34 rotates counterclockwise and the second reduction motor 35 rotates counterclockwise, the oil will be driven by the first spiral blade 321 and the second spiral blade 331 to move to the left.

[0109] Oil flows to the right (toward the direction close to the first reduction motor): when the first reduction motor 34 rotates clockwise and the second reduction motor 35 rotates clockwise, the oil will be driven by the first spiral blade 321 and the second spiral blade 331 to move to the right.

[0110] Reference Fig.15 The inner sides of the first spiral blade 321 and the second spiral blade 331 are fixedly connected with a plurality of connecting plates 322. The first spiral blade 321 and the second spiral blade 331 are fixedly connected with the first stirring shaft 32 and the second stirring shaft 33 respectively through the connecting plates 322, so that a hollow structure is formed between the first spiral blade 321 and the first stirring shaft 32, and between the second spiral blade 331 and the second stirring shaft 33. In view of the special oil production method of the present application, the first spiral blade and the second spiral blade are hollow, which has the following advantages: (1) Reduce stirring resistance and reduce motor load. (2) It is easier to tear, squeeze, knead, and rub the emulsified protein mass with high adhesion. (3) Reduce the dead angle between the spiral blade and the shaft, making it easier to clean.

[0111] Reference Figure 16-19 The bottom wall of the mixing chamber 31 is arranged in an arc shape to form two unit chambers 311, and the first mixing shaft 32 and the second mixing shaft 33 are respectively located in the two unit chambers 311; the side walls at both ends of the unit chamber 311 are respectively provided with an oil residue outlet 312 and an oil liquid outlet 313, and the oil residue outlet 312 and the oil liquid outlet 313 are arranged near the lowest part of the side wall of the unit chamber 311. A slag discharge drive assembly and an oil discharge drive assembly are arranged outside the mixing chamber 31, and an oil residue baffle 3121 is movably arranged at the oil residue outlet 312 through the oil residue drive assembly, and the oil residue baffle 3121 is used to block or open the oil residue outlet 312; an oil liquid baffle 3131 is movably arranged at the oil liquid outlet 313 through the oil discharge drive assembly, and the oil liquid baffle 3131 is used to block or open the oil liquid outlet 313. The slag discharge drive assembly and the oil discharge drive assembly can be selected and set according to actual conditions, and any drive structure that can open and close the oil baffle 3131 and the oil residue baffle 3121 can be used, and even a manual method can be used, which is not described in detail in this application. The bottom wall of the mixing chamber 31 is inclined, and the lowest end of the bottom wall of the mixing chamber 31 is located at the oil outlet 313.

[0112] After the oil in the mixing chamber 31 becomes clear and pure, the oil and slag are discharged in sequence: When draining the oil: after the first stirring shaft 32 and the second stirring shaft 33 operate to push the oil residue mass to one end of the stirring chamber 31 close to the oil residue baffle 3121, the first stirring shaft 32 and the second stirring shaft 33 stop rotating, and the oil baffle 3131 moves until the oil outlet 313 is opened to drain the oil; since the stirring chamber 31 is tilted toward the oil outlet 313 as a whole, the oil will flow out through the oil outlet 313 along the tilted direction.

[0113] Then the first stirring shaft 32 and the second stirring shaft 33 rotate in opposite directions, so that the oil residue mass moves toward the oil outlet 313, but does not move to the oil outlet 313, and then the rotation direction of the first stirring shaft 32 and the second stirring shaft 33 is changed to push the oil residue mass to one end of the stirring bin 31 close to the oil residue baffle 3121, and the first stirring shaft 32 and the second stirring shaft 33 stop rotating for a period of time to perform secondary oil release; the secondary oil release step is repeated many times until the oil release is completed. In order to avoid the formation of grooves between the oil residue mass and the spiral blades, which causes the oil to not flow out, the secondary oil release step will be repeated many times during the oil release process to change the posture and angle of the oil residue mass and improve the adequacy of oil release.

[0114] During slag discharge: after the oil is discharged, the slag is discharged. The first stirring shaft 32 and the second stirring shaft 33 rotate to push the oil residue mass toward the oil liquid outlet 313, but not to the oil liquid outlet 313; then change the rotation direction of the first stirring shaft 32 and the second stirring shaft 33, and push the oil residue mass toward the oil residue outlet 312; repeat the above steps several times to make the oil residue fragments in the stirring bin 31 adhere to the oil residue mass as much as possible; then move the oil residue baffle 3121 until the oil residue outlet 312 is opened, and the first stirring shaft 32 and the second stirring shaft 33 rotate to push the oil residue mass toward the oil residue outlet 312, and the slag discharge is completed.

[0115] In order to more thoroughly distinguish oil from oil residue, the oil liquid outlet 313 and the oil residue outlet 312 are independently arranged at the left and right ends of the mixing chamber 31. After the entire mixing chamber 31 is installed, the mixing chamber 31 is tilted toward the oil outlet, which facilitates the oil to flow out smoothly from the oil outlet to achieve solid-liquid separation.

[0116] Reference Figure 19-20 The material receiving mechanism 6 includes an oil storage tank 61, a water storage tank 62, a filter plate 63, a filling device 64, a control cylinder 65 and a slag receiving box 66. One end of the mixing chamber 31 is connected to a diverter plate 67 through a frame rotation. The tail end of the control cylinder 65 is hinged to the end of the mixing chamber 31. The piston end of the control cylinder 65 is hinged to the diverter plate 67 to drive the diverter plate 67 to rotate; the diverter plate 67 is arranged directly below the oil outlet 313. The oil storage tank 61 and the water storage tank 62 are arranged in parallel and are respectively located below the two ends of the diverter plate 67; the filter plate 63 is arranged on the oil storage tank 61, and the filling device 64 is connected to the oil storage tank 61 through a pipeline to extract oil for filling; the slag receiving box 66 is located below the oil residue outlet 312 to receive the oil residue.

[0117] After the oil is taken out of the mixing chamber 31, the oil falls from the oil outlet 313. At this time, the diverter plate 67 is rotated to be tilted by controlling the cylinder 65, and the lowest end of the diverter plate 67 is located directly above the oil storage tank 61. The oil falls along the diverter plate 67, and enters the oil storage tank 61 after being filtered by the filter plate 63. The filling device 64 extracts the oil for filling to obtain the finished oil product. The oil residue falls from the oil residue outlet 312 and enters the residue receiving box 66. When the mixing chamber 31 needs to be cleaned, the diverter plate 67 is rotated by controlling the cylinder 65 until the lowest end of the diverter plate 67 is located directly above the water storage tank 62. At this time, the cleaning wastewater in the mixing chamber 31 falls into the water storage tank 62 along the diverter plate 67, and will not pollute the oil in the oil storage tank 61.

[0118] In the second aspect, the present application discloses a fully automatic intelligent grinding and stirring process: A fully automatic intelligent grinding and stirring process, using the above equipment, comprises the following steps: S1. Coarse grinding: Pour the material into the coarse grinding chamber 411, the material contacts the first feed cutter 415 and the second feed cutter 416, and the first cutter roller 412 and the second cutter roller 413 are driven by the coarse grinding drive assembly 414 to rotate toward the middle gap, the first feed cutter 415 and the second feed cutter 416 tear the larger particles of the material into smaller particles, and under the action of the saw teeth 417, the material torn into smaller particles is grabbed by the first cutter roller 412 and the second cutter roller 413 toward the middle gap and moves downward, achieving coarse grinding and automatically feeding to the fine grinding chamber 421 below; When the surface of part of the material is ground to be relatively smooth and cannot be grasped and moved downward, at this time, the first cutting knife roller 412 and the second cutting knife roller 413 are driven by the rough grinding drive component 414 to rotate in the opposite direction away from the middle gap, and the rotation speed and direction of the first cutting knife roller 412 and the second cutting knife roller 413 are controlled to change the posture and angle of the material that is difficult to move downward, and then the first cutting knife roller 412 and the second cutting knife roller 413 are rotated forward to grasp, so as to perform fully automatic continuous rough grinding and feeding; S2, fine grinding: the coarsely ground material enters the fine grinding chamber 421, and the material contacts the feed roller 422 and the grinding roller 423. The fine grinding drive assembly 424 drives the feed roller 422 and the grinding roller 423 to rotate, and the feed roller 422 and the grinding roller 423 rotate in a direction close to each other and at different speeds, so that the cutting edges of the first spiral groove 425 and the second spiral groove 426 are in different directions, and the thread lines on the first spiral groove 425 and the second spiral groove 426 continuously intersect, and a relative cutting force is formed between the first spiral groove 425 and the second spiral groove 426, so that the particles of the coarsely ground material are finely ground to achieve fine grinding, and the particle size of the powder after fine grinding is 60-80 mesh; S3, oil extraction: (1) Preheating stage: After the material completely enters the mixing chamber 31, the heating device is started to control the temperature in the mixing chamber 31 to 65-72°C. At the same time, the first mixing shaft 32 and the second mixing shaft 33 rotate around their own axes to push the powder in clockwise and counterclockwise cycles alternately. When the material reaches the water adding condition, that is, the material is evenly heated to 65-72°C, it automatically enters the water adding stage; in the embodiment of the present application, the temperature of the mixing bin 31 and the material evenly heated is 71°C; (2) Water adding stage: After the water adding conditions are met, the rotation direction of the first stirring shaft 32 and the second stirring shaft 33 is changed, and the material is continuously pushed in a counterclockwise cycle; the heating automatic water injection device 5 automatically operates, and the water adding temperature is consistent with the temperature in the stirring chamber 31. After the water addition amount reaches 13-16% of the mass of the oil, the water addition is completed and the oil extraction stage is automatically entered; the water addition amount in the embodiment of the present application is 13% of the mass of the oil; (3) Oil extraction stage: After the water is added, the temperature in the stirring chamber 31 continues to maintain 71°C, and the first stirring shaft 32 and the second stirring shaft 33 continuously change the stirring mode; the material in the stirring chamber 31 continuously changes the movement direction with the first spiral blade 321 and the second spiral blade 331, the material is emulsified, the oil is released and agglomerated, and then automatically enters the purification stage. In the oil extraction stage, the material and the material, the material and the wall of the stirring chamber 31, and the material and the spiral blades are constantly torn, kneaded, and squeezed. Since the temperature and humidity of the protein contained in the material have reached the optimal emulsification conditions, it is repeatedly torn, kneaded, and squeezed through the stirring action. The protein will gradually emulsify. After emulsification, the protein has a high hydrophilic and oleophobic property. Therefore, during the emulsification process, the protein will gradually release the oil contained in it. As the emulsification degree increases, the oil released by the oil extraction material will also increase. At the same time, after the protein releases the oil, the oil content itself will decrease, the viscosity will increase, and the oil residue will stick together into a block, like a smooth dough. When the oil in the oil is released to nearly complete, the oil extraction stage is completed. The time of the oil extraction stage is 15 minutes.

[0119] (4) Purification stage: After the oil is completely released into the mixing chamber 31, the emulsified protein has high water absorption and high viscosity. The agglomerated material is continuously stirred to make the agglomerated protein roll left and right in the oil. The purpose is to adhere the residual particles or small pieces of oil residue in the oil to the oil residue mass and absorb the residual water in the oil more thoroughly. The oil becomes clearer and purer. The purification stage lasts for 2 minutes, and then automatically enters the solid-liquid separation stage, that is, the oil release stage.

[0120] (5) Oil discharge stage: After the first stirring shaft 32 and the second stirring shaft 33 operate to push the oil residue mass to one end of the stirring chamber 31 close to the oil residue baffle 3121, the first stirring shaft 32 and the second stirring shaft 33 stop rotating, and the oil baffle 3131 moves until the oil outlet 313 is opened, and the oil is discharged once; Then the first stirring shaft 32 and the second stirring shaft 33 rotate in opposite directions, so that the oil residue mass moves toward the oil outlet 313, but does not move to the oil outlet 313, and then the rotation direction of the first stirring shaft 32 and the second stirring shaft 33 is changed to push the oil residue mass to one end of the stirring bin 31 close to the oil residue baffle 3121, and the first stirring shaft 32 and the second stirring shaft 33 stop rotating for a period of time to perform secondary oil discharge; Repeat the secondary oil discharge step many times until the oil discharge is completed and enter the slag discharge stage. Since the mixing chamber 31 is tilted toward the oil outlet 313 as a whole, the oil will flow out through the oil outlet 313 along the tilt direction. In order to avoid the formation of grooves between the oil residue mass and the first spiral blade 321 and the second spiral blade 331, which will prevent the oil from flowing out, the secondary oil discharge step will be repeated many times during the oil discharge process to change the posture and angle of the oil residue mass and improve the adequacy of oil discharge. The oil discharge stage lasts for 3 minutes.

[0121] (6) Slag discharge stage: the first stirring shaft 32 and the second stirring shaft 33 rotate to push the oil residue mass toward the oil liquid outlet 313, but not to the oil liquid outlet 313; then change the rotation direction of the first stirring shaft 32 and the second stirring shaft 33 to push the oil residue mass toward the oil residue outlet 312; repeat the above steps several times; then the oil residue baffle 3121 moves until the oil residue outlet 312 is opened, and the first stirring shaft 32 and the second stirring shaft 33 rotate to push the oil residue mass toward the oil residue outlet 312, thereby completing the slag discharge.

[0122] (7) Filling stage: After the oil falls from the oil outlet 313, it is filtered along the diverter plate 67 through the filter plate 63 and enters the oil storage tank 61. It is then automatically extracted by the filling device 64 to complete the oil filling and obtain the finished oil product.

[0123] The particle size of the powder after fine grinding is 60-80 mesh. The finer the particle size, the higher the protein emulsification efficiency. Therefore, the oil yield and efficiency are higher, the oil residue agglomeration effect is better, and the oil produced is purer. 65-72℃ is selected because protein is easy to emulsify at 65℃, and the important beneficial substances in oil, such as walnut oil - unsaturated fatty acids (linoleic acid and linolenic acid) are easily volatilized at high temperatures, while less or no volatilization occurs at 72℃, and the oil yield and efficiency are higher.

[0124] After the powder reaches the emulsification condition and forms emulsified protein, it has the characteristics of hydrophilicity and oleophobicity. At the same time, it has high adhesion. Through a specific stirring method, it can not only form a mass by itself, but also adhere other non-protein substances (such as plant fibers) to it, forming a smooth round solid object like dough.

[0125] During the water absorption and emulsification process of the powder, if the amount of water is too much, the powder absorbs too much water, resulting in residual water in the oil, the oil residue mass is not formed, and the oil and oil residue cannot be completely separated. If the amount of water is too little, the powder does not absorb enough water, resulting in incomplete or no oil output. The present application can accurately control the amount of water added, thereby facilitating the emulsification of the oil into a mass and the output of oil.

[0126] By extracting oil through the extraction method of the present application, the water in the stirring chamber 31 can be almost completely absorbed by the oil residue mass, and the liquid in the stirring chamber 31 contains almost no water except the oil. The extracted oil has an extremely high purity rate and can be directly bottled and used.

[0127] Example 2 The difference between the embodiment of the present application and embodiment 1 is that the extraction temperature in the embodiment of the present application is 70° C., that is, the temperature in the stirring chamber 31 and the water adding temperature are 70° C.; and the water adding ratio is 14% of the mass of the oil.

[0128] Example 3 The difference between the embodiment of the present application and embodiment 1 is that the extraction temperature in the embodiment of the present application is 70°C, that is, the temperature in the stirring chamber 31 and the water adding temperature are 70°C.

[0129] Example 4 The difference between the embodiment of the present application and embodiment 1 is that the extraction temperature in the embodiment of the present application is 70° C., that is, the temperature in the stirring chamber 31 and the water adding temperature are 70° C.; and the water adding ratio is 16% of the mass of the oil.

[0130] Example 5 The difference between the embodiment of the present application and embodiment 1 is that the extraction temperature in the embodiment of the present application is 65°C, that is, the temperature in the stirring chamber 31 and the water addition temperature are 65°C.

[0131] Example 6 The difference between the embodiment of the present application and embodiment 1 is that the extraction temperature in the embodiment of the present application is 72°C, that is, the temperature in the stirring chamber 31 and the water addition temperature are 72°C.

[0132] Comparative Example 1 The difference between the embodiment of the present application and embodiment 1 is that the water addition ratio in the embodiment of the present application is 12.8% of the mass of the oil.

[0133] Comparative Example 2 The difference between the embodiment of the present application and embodiment 1 is that the extraction temperature in the embodiment of the present application is 70°C, that is, the temperature in the stirring chamber 31 and the water adding temperature are 70; and the water adding ratio is 18% of the mass of the oil.

[0134] Comparative Example 3 The difference between the embodiment of the present application and embodiment 1 is that the extraction temperature in the embodiment of the present application is 60°C, that is, the temperature in the stirring chamber 31 and the water addition temperature are 60°C.

[0135] Comparative Example 4 The difference between the embodiment of the present application and embodiment 1 is that the extraction temperature in the embodiment of the present application is 75°C, that is, the temperature in the stirring chamber 31 and the water addition temperature are 75°C.

[0136] Comparison of water-replacement method for oil extraction in this application with other methods The three methods are screw pressing, hydraulic pressing and the water extraction method of the present application. The oil material is ground walnut kernels. The screw pressing method and the hydraulic pressing method are both existing technologies.

[0137] Hydraulic pressing method: Walnut oil is obtained by low-temperature pressing using a fully automatic hydraulic oil press. The pressing temperature is room temperature (about 25°C), the pressure is set to 48MPa, and the pressing time is about 2h.

[0138] Screw pressing method: Walnut oil is obtained by high-temperature pressing using a screw press, with the pressing temperature being around 100°C.

[0139] 1. The influence of three oil extraction methods on the quality of walnut oil The following methods for determining the quality indexes of walnut oil all adopt the determination methods in the prior art, and this application will not go into details.

[0140] 1. Comparison of oil acidity of three oil extraction methods Reference Fig.14 The comparison results of acid values ​​of different oil extraction methods show that the acid value content of walnut oil extracted by the three oil extraction methods is within the national standard range. The acid value of walnut oil obtained by the new method of the present application is significantly lower than that of screw pressing and hydraulic pressing, but the difference in acid value content between walnut oil produced by screw pressing and hydraulic pressing is not significant. Among them, the acid value of walnut oil produced by the water extraction method of the present application is 0.52±0.015 mgKOH / g, and the acid value of the hydraulic pressing method is 0.65±0.014 mgKOH / g.

[0141] 2. Comparison of oil peroxide values ​​of three oil extraction methods Reference Fig.15The comparison results of peroxide values ​​of different oil pressing methods show that the peroxide value content of walnut oil extracted by the three oil pressing methods is within the national standard range. The lowest peroxide value of walnut oil obtained by the new method of the present application is 0.010±0.005g / 100g, which is significantly lower than the 0.068±0.002 g / 100g of hydraulic pressing, and has no significant difference with the peroxide value of 0.023±0.003 g / 100g of screw pressing.

[0142] 3. Other physical and chemical indicators of three oil extraction methods The refractive index, relative density, iodine value, saponification value, insoluble impurities and oil color of walnut oil from the three oil extraction methods are shown in the following table, all of which meet the national standards.

[0143] Table 1 Oil quality of different oil pressing methods 4. Comparison of α-tocopherol content in three oil extraction methods Reference Fig.16 The results of α-tocopherol content in different oil extraction methods show that the α-tocopherol content of walnut oil obtained by the new method of the present application is higher than that of walnut oil produced by screw pressing and hydraulic pressing, but there is no significant difference in the α-tocopherol content between the walnut oil produced by the water-substitute stirring method of the present application and the screw pressing method. The α-tocopherol content of the water-substitute stirring method of the present application is 31.47±1.37μg / mL, the hydraulic pressing is 25.17±1.05μg / mL, and the screw pressing is 27.922±1.28μg / mL.

[0144] 5. Comparison of γ-tocopherol in three oil extraction methods Reference Fig.17 The results of γ-tocopherol content in different oil extraction methods showed that the γ-tocopherol content in the walnut oil obtained by the water substitution stirring method of the present application was significantly higher than that of screw pressing and hydraulic pressing. The γ-tocopherol content in the walnut oil prepared by the extraction method of the present application was 4.93±0.58μg / mL, 1.84±0.41μg / mL by hydraulic pressing, and 2.3868±0.32μg / mL by screw pressing.

[0145] 6. Comparison of squalene content in three oil extraction methods Reference Fig.18, the results of squalene content in different oil extraction methods show that the squalene content in the walnut oil obtained by the water-substituting stirring method of the present application is significantly higher than that by the screw pressing method and the hydraulic pressing method. The squalene content in the walnut oil obtained by the screw pressing method is significantly lower than that by the extraction method and hydraulic pressing of the present application. Among them, the squalene content in the walnut oil produced by the extraction method of the present application is 68.82±1.52μg / mL, the screw pressing method is 17.8733±1.58μg / mL, and the hydraulic pressing method is 37.2205±1.65μg / mL.

[0146] 7. Comparison of β-sitosterol content in three oil extraction methods Reference Fig.19 The results of β-sitosterol content in different oil extraction methods show that the β-sitosterol content in walnut oil obtained by the extraction method of the present application is significantly higher than that by the screw pressing method and the hydraulic pressing method. The β-sitosterol content in walnut oil obtained by the extraction method of the present application is 661.95±5.24μg / mL, the hydraulic pressing method is 409.8545±4.17μg / mL, and the screw pressing method is 280.67±4.69μg / mL.

[0147] 8. Analysis of coenzyme Q10 and other ingredients in different types of walnut oil Reference Fig. 20 As shown in the figure, the coenzyme Q10 and rutin contents in the walnut oil produced by the water-substituting stirring method of the present application are significantly higher than those of the other three walnut oils, and the trinaphthol content is also significantly higher than that of the original and commercially available walnut oils. There is no significant difference in the contents of flavonols and juglone among the four walnut oils.

[0148] 2. Prediction of the shelf life of walnut oil Reference Fig.21 The comparison of shelf life of different walnut oil production methods is shown in the figure below. The walnut oil obtained by the water-substitute stirring method of the present application has a shelf life significantly higher than that of the screw pressing method and the hydraulic pressing method, whether stored at 20°C or 60°C. The walnut oil produced by the extraction method of the present application has a shelf life of 43 days at 60°C and 688 days at 20°C; the walnut oil produced by the screw pressing method has a shelf life of 36 days at 60°C and 570 days at 20°C; the walnut oil produced by the hydraulic pressing method has a shelf life of 31 days at 60°C and 506 days at 20°C.

[0149] 3. Analysis of Walnut Cake Composition (1) Comparison of protein content among three oil extraction methods Reference Fig. 22 The protein content of walnut cake prepared by the water-substitute stirring method of the present application and hydraulic pressing and screw pressing is as follows: Fig.12As shown, among the walnut cakes obtained by different oil-making methods, the protein content of the cakes obtained by the extraction method of the present application is higher than that of the cakes obtained by the screw pressing method and the hydraulic pressing method, but there is no significant difference in the protein content of the cakes obtained by the extraction method of the present application and the screw pressing method. The protein content of the cakes obtained by the extraction method of the present application is 54.28±0.45%, and the protein content of the cakes obtained by the hydraulic pressing method is 45.17±0.36%.

[0150] (2) Comparison of residual oil rates among three oil pressing methods Reference Fig.23 The residual oil rates of different oil pressing methods are shown in the figure below. There are significant differences in the residual oil rates between different methods. The residual oil rate of the water-substitute stirring method of the present application is 7.9%, the screw pressing is 5.0%, and the hydraulic pressing is 13.7%. The residual oil of the extraction method of the present application is significantly lower than that of the hydraulic pressing.

[0151] (3) Comparison of nutritional indicators of walnut meal prepared by the extraction method of this application Reference Fig.24 The protein content, fat, moisture, crude fiber, ash and carbohydrate content of the skinned and undressed walnut cake powder prepared by the extraction method of the present application are shown in the figure below. The protein and moisture contents of the skinned walnut cake powder in the extraction method of the present application are lower than those of the undressed walnut cake powder, while the fat, crude fiber, ash and carbohydrate contents are higher than those of the undressed walnut cake powder.

[0152] Water addition ratio and extraction temperature: The oil yield and oil yield efficiency test methods of oil are prior art and can be measured using corresponding standards and methods, and the following measurement table 2 is obtained: Table 2 Compare Examples 2, 3, 4 and Comparative Examples 1-2, as shown in Table 3 below: Table 3 Oil Raw material types Raw material ingredients Water adding ratio Water adding temperature ℃ Oil yield Oil output efficiency Example 2 Walnut kernels 63.70% 14.00% 70 54.90% 86.97% Example 3 Walnut kernels 63.70% 13.00% 70 56.60% 88.85% Example 4 Walnut kernels 63.70% 16.00% 70 53.40% 84.83% Comparative Example 1 Walnut kernels 63.70% 12.80% 70 52.90% 83.49% Comparative Example 2 Walnut kernels 63.70% 18.00% 70 52.40% 82.26% Referring to Table 3, it can be seen that when all other conditions except the water addition ratio are the same, the oil yield and oil efficiency of Examples 2, 3, and 4 are better than those of Comparative Examples 1-2. Therefore, it is better to control the water addition ratio of the present application to 13%-16% as a process parameter in the stirring method; and 13% is the optimal water addition ratio.

[0153] Compare Examples 1, 3, 5, 6 and Comparative Examples 3-4, as shown in Table 4 below: Table 4 Oil Raw material types Raw material ingredients Water adding ratio Extraction temperature ℃ Oil yield Oil output efficiency Example 1 Walnut kernels 63.70% 13.00% 71 59.20% 92.94% Example 3 Walnut kernels 63.70% 13.00% 70 56.60% 88.85% Example 5 Walnut kernels 63.70% 13.00% 65 56.60% 88.92% Example 6 Walnut kernels 63.70% 13.00% 72 56.80% 89.17% Comparative Example 3 Walnut kernels 63.70% 13.00% 60 56.00% 86.06% Comparative Example 4 Walnut kernels 63.70% 13.00% 75 56.20% 86.23% Referring to Table 4, it can be seen that when all other conditions except the extraction temperature are the same, the oil yield and oil efficiency of Examples 1, 3, 5, and 6 are better than those of Comparative Examples 3-4. Therefore, the extraction temperature of the present application is controlled at 65-72°C as a process parameter in the stirring method, and 71°C is the optimal temperature.

[0154] In summary, by comparing the quality indicators of walnut oil obtained by three oil-making methods, namely, screw pressing, hydraulic pressing and the water-based extraction method of the present application, it can be seen that the walnut oil obtained by the water-based extraction method of the present application has better quality overall; and the present application optimizes the water addition ratio and extraction temperature of the stirring method, significantly improves the oil yield and oil yield efficiency, and can be used for oil extraction, with broad application prospects.

[0155] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully automatic intelligent grinding and stirring device, comprising a table (1) and a support frame (2) at the bottom of the table (1), a stirring mechanism (3), a grinding device (4) and a heating automatic water injection device (5) are arranged on the table (1), and the discharge port of the grinding device (4) is located above the stirring mechanism (3), characterized in that: The grinding device (4) comprises a coarse grinding mechanism (41) and a fine grinding mechanism (42), and the material is sequentially ground by the coarse grinding mechanism (41) and the fine grinding mechanism (42) and then enters the stirring mechanism (3); The rough grinding mechanism (41) comprises a rough grinding chamber (411), a first cutting blade roller shaft (412), a second cutting blade roller shaft (413) and a rough grinding drive assembly (414); the first cutting blade roller shaft (412) and the second cutting blade roller shaft (413) are rotatably mounted in the rough grinding chamber (411) through the rough grinding drive assembly (414) and are arranged in parallel; the first cutting blade roller shaft (412) and the second cutting blade roller shaft (413) rotate in opposite directions; a plurality of annular first blanking rollers (413) are fixedly arranged on the first cutting blade roller shaft (412); A cutter (415), a plurality of annular second material cutting knives (416) are fixedly arranged on the second cutter roller shaft (413), and the first material cutting knives (415) and the second material cutting knives (416) are arranged alternately; saw teeth (417) are obliquely arranged on the first material cutting knives (415) and the second material cutting knives (416), and the saw teeth (417) are inclined toward the gap in the middle of the first cutter roller shaft (412) and the second cutter roller shaft (413); a coarse grinding outlet is arranged at the bottom of the coarse grinding chamber (411); The fine grinding mechanism (42) comprises a fine grinding chamber (421), a feed roller (422), a grinding roller (423) and a fine grinding drive assembly (424); the top of the fine grinding chamber (421) is communicated with a coarse grinding discharge port; the feed roller (422) and the grinding roller (423) are rotatably installed in the fine grinding chamber (421) through the fine grinding drive assembly (424) and are arranged in parallel; the feed roller (422) and the grinding roller (423) rotate in a direction approaching each other and have different rotation speeds; a first spiral groove (425) is provided on the peripheral side wall of the feed roller (422), and a second spiral groove (426) is provided on the grinding roller (423); a fine grinding discharge port is provided at the bottom of the fine grinding chamber (421), and the fine grinding discharge port is connected to the stirring mechanism (3).

2. The fully automatic intelligent grinding and mixing equipment according to claim 1 is characterized in that: The density of the first spiral groove (425) is less than the density of the second spiral groove (426), and the first spiral groove (425) and the second spiral groove (426) are both divided into two sections, the spiral directions of the two sections of the first spiral groove (425) are opposite, and the spiral directions of the two sections of the second spiral groove (426) are opposite; A scraper (427) is installed in the fine grinding chamber (421). The scraper (427) is arranged on both sides of the fine grinding chamber (421) in the width direction, and the scrapers (427) on both sides are respectively aligned with the feeding roller (422) and the grinding roller (423).

3. The fully automatic intelligent grinding and mixing equipment according to claim 1 is characterized in that: The fine grinding drive assembly (424) comprises a fine grinding motor (4241), a synchronous gear set (7) and a transmission gear set (8), wherein the synchronous gear set (7) and the transmission gear set (8) are both rotatably arranged on the outer side wall of the fine grinding chamber (421); The synchronous gear set (7) comprises a driving gear (71), a first driven gear (72), a second driven gear (73) and a synchronous toothed belt (74); the driving gear (71) is fixedly arranged on the rotating shaft of the fine grinding motor (4241); the first driven gear (72) is fixedly connected to the end of the feeding roller (422) and is coaxially arranged with the feeding roller (422); and the synchronous toothed belt (74) is meshed with the driving gear (71), the first driven gear (72) and the second driven gear (73) at the same time; The transmission gear set (8) comprises a first transmission gear (81) and a second transmission gear (82); the second driven gear (73) drives the first transmission gear (81) to rotate; the second transmission gear (82) is fixedly connected to the end of the grinding roller (423) and is coaxially arranged; the second transmission gear (82) is meshed with the first transmission gear (81).

4. The fully automatic intelligent grinding and mixing equipment according to claim 3 is characterized in that: The synchronous gear set (7) and the transmission gear set (8) are respectively located on both sides of the grinding chamber. The fine grinding mechanism (42) also includes an adjustment component (9). The adjustment component (9) includes a slider (91) and a driving unit. The slider (91) is arranged at both ends of the grinding roller (423). The two ends of the grinding roller (423) are rotatably connected to the corresponding slider (91) through bearings. A sliding groove (92) for the slider (91) to slide is provided on the side wall of the grinding chamber. The driving unit is used to drive the slider (91) to slide. The sliding direction of the slider (91) is close to or away from the feeding roller (422).

5. The fully automatic intelligent grinding and mixing equipment according to claim 4 is characterized in that: The grinding chamber is surrounded by a front side plate (4211), a rear side plate (4212) and two side plates (4213) arranged opposite to each other; the two ends of the feeding roller (422) are correspondingly connected to the side plates (4213) through bearings; the slide groove (92) is provided on the side plates (4213); the side plates (4213) and the front side plate (4211) are detachably connected; The side plate (4213) is also provided with a mounting groove (4214), one side of the mounting groove (4214) is connected to the slide groove (92), and the other side of the mounting groove (4214) passes through the end surface of the side plate (4213) close to the front side plate (4211), and the width of the mounting groove (4214) is greater than the width of the slide groove (92); a mounting plate (428) is fixedly and detachably installed in the mounting groove (4214), and the mounting plate (428) is blocked at the opening of the slide groove (92); The driving part is an adjusting bolt (93), which passes through and is rotatably connected to the mounting plate (428); a threaded hole (911) is provided on the slider (91), one end of the adjusting bolt is threadedly connected to the threaded hole (911), and the other end of the adjusting bolt (93) is located in the mounting groove (4214); limiting grooves (912) are provided on both sides of the slider (91), and the limiting grooves (912) are clamped on the side plates (4213) at the sliding groove (92).

6. The fully automatic intelligent grinding and mixing equipment according to claim 5, characterized in that: The stirring mechanism (3) comprises a stirring chamber (31), a first stirring shaft (32), a second stirring shaft (33), a first reduction motor (34) and a second reduction motor (35); The fine grinding outlet is connected to the stirring chamber (31), a heating device is provided on the outer wall of the stirring chamber (31), a rotating nozzle (51) is provided on the heating automatic water injection device (5), and the rotating nozzle (51) is arranged toward the stirring chamber (31); The first stirring shaft (32) and the second stirring shaft (33) are rotatably installed in the stirring chamber (31) and are arranged in parallel; the rotating shaft of the first reduction motor (34) is connected to the first stirring shaft (32) for driving the first stirring shaft (32) to rotate; the rotating shaft of the second reduction motor (35) is connected to the second stirring shaft (33) for driving the second stirring shaft (33) to rotate; a first spiral blade (321) is fixedly connected to the first stirring shaft (32); and a second spiral blade (331) is fixedly connected to the second stirring shaft (33).

7. The fully automatic intelligent grinding and mixing equipment according to claim 6, characterized in that: The bottom wall of the stirring chamber (31) is arranged in an arc shape to form two unit chambers (311), and the first stirring shaft (32) and the second stirring shaft (33) are respectively located in the two unit chambers (311); the side walls at both ends of the unit chamber (311) are respectively provided with an oil residue outlet (312) and an oil liquid outlet (313), and the oil residue outlet (312) and the oil liquid outlet (313) are arranged close to the lowest point of the side wall of the unit chamber (311); A slag discharge drive assembly and an oil discharge drive assembly are arranged outside the mixing chamber (31); an oil slag baffle (3121) is movably arranged at the oil slag outlet (312) through the oil slag drive assembly, and the oil slag baffle (3121) is used to block or open the oil slag outlet (312); an oil baffle (3131) is movably arranged at the oil outlet (313) through the oil discharge drive assembly, and the oil baffle (3131) is used to block or open the oil outlet (313); The bottom wall of the stirring chamber (31) is arranged to be inclined, and the lowest end of the bottom wall of the stirring chamber (31) is located at the oil outlet (313).

8. The fully automatic intelligent grinding and mixing equipment according to claim 7, characterized in that: It also includes a material receiving mechanism (6), wherein the material receiving mechanism (6) is arranged on the support frame (2) and is located below the stirring mechanism (3); The material receiving mechanism (6) comprises an oil storage tank (61), a water storage tank (62), a filter plate (63), a filling device (64), a control cylinder (65) and a slag receiving box (66); one end of the mixing chamber (31) is rotatably connected to a diverter plate (67) via a frame; the tail end of the control cylinder (65) is hinged to the end of the mixing chamber (31); the piston end of the control cylinder (65) is hinged to the diverter plate (67) for driving the diverter plate (67) to rotate; the diverter plate (67) is arranged directly below the oil outlet (313); The oil storage tank (61) and the water storage tank (62) are arranged in parallel and are respectively located below the two ends of the diverter plate (67); the filter plate (63) is arranged on the oil storage tank (61); the filling device (64) is connected to the oil storage tank (61) through a pipeline and is used to extract oil for filling; the residue receiving box (66) is located below the oil residue outlet (312) and is used to receive the oil residue.

9. A fully automatic intelligent grinding and stirring process, using the oil extraction equipment as claimed in claim 8, characterized in that: The steps include: S1. Rough grinding: pour the material into the rough grinding chamber (411), the material contacts the first feed cutter (415) and the second feed cutter (416), the rough grinding drive assembly (414) drives the first cutter roller (412) and the second cutter roller (413) to rotate toward the middle gap, the first feed cutter (415) and the second feed cutter (416) tear the larger particles of the material into smaller particles, and under the action of the saw teeth (417), the material that has been torn into smaller particles is grabbed by the first cutter roller (412) and the second cutter roller (413) toward the middle gap and moves downward, so as to achieve rough grinding and automatically feed the material to the fine grinding chamber (421) below; When the surface of part of the material is ground to be relatively smooth and cannot be grasped and moved downward, the rough grinding drive component (414) drives the first cutting knife roller (412) and the second cutting knife roller (413) to rotate in the opposite direction away from the middle gap, and controls the rotation speed and direction of the first cutting knife roller (412) and the second cutting knife roller (413) to change the posture and angle of the material that is difficult to move downward, and then makes the first cutting knife roller (412) and the second cutting knife roller (413) rotate forward to grasp, so as to perform fully automatic continuous rough grinding and feeding; S2, fine grinding: the material after rough grinding enters the fine grinding chamber (421), the material contacts the feed roller (422) and the grinding roller (423), the fine grinding drive assembly (424) drives the feed roller (422) and the grinding roller (423) to rotate, the feed roller (422) and the grinding roller (423) rotate in a direction approaching each other and at different rotation speeds, so that the cutting edges of the first spiral groove (425) and the second spiral groove (426) have different directions, the thread lines on the first spiral groove (425) and the second spiral groove (426) continuously intersect, and a relative cutting force is formed between the first spiral groove (425) and the second spiral groove (426), so that the particles of the material after rough grinding are ground into fine particles, thereby achieving fine grinding; S3, oil extraction: (1) Preheating stage: After the finely ground material completely enters the stirring chamber (31), the heating device is started to control the temperature in the stirring chamber (31) to 65-72°C, and at the same time, the first stirring shaft (32) and the second stirring shaft (33) rotate around their own axes to push the powder in a clockwise and counterclockwise cycle alternately; When the material reaches the water adding condition, that is, the material is evenly heated to 65-72℃, it automatically enters the water adding stage; (2) Water adding stage: After the water adding conditions are met, the rotation direction of the first stirring shaft (32) and the second stirring shaft (33) is changed, and the material is continuously pushed in a counterclockwise cycle; the heating type automatic water injection device (5) automatically operates, and after the amount of water added reaches 13-16% of the mass of the oil, the water addition is completed and the oil extraction stage is automatically entered; (3) Oil extraction stage: After the water is added, the temperature in the stirring chamber (31) continues to be maintained at 65-72°C, and the first stirring shaft (32) and the second stirring shaft (33) continuously change the stirring mode; the material in the stirring chamber (31) continuously changes the movement direction along with the first spiral blade (321) and the second spiral blade (331), the material is emulsified, the oil is released and agglomerated, and the equipment automatically enters the purification stage; (4) Purification stage: Continue to stir the agglomerated materials, the oil becomes clearer and purer, and the equipment automatically enters the solid-liquid separation stage; (5) Oil discharge stage: after the first stirring shaft (32) and the second stirring shaft (33) operate to push the oil residue mass to one end of the stirring bin (31) close to the oil residue baffle (3121), the first stirring shaft (32) and the second stirring shaft (33) stop rotating, and the oil baffle (3131) moves to open the oil outlet (313), and oil discharge is performed once; Then, the first stirring shaft (32) and the second stirring shaft (33) rotate in opposite directions, so that the oil residue mass moves toward the oil outlet (313), but does not move to the oil outlet (313). Then, the rotation direction of the first stirring shaft (32) and the second stirring shaft (33) is changed to push the oil residue mass to one end of the stirring bin (31) close to the oil residue baffle (3121). The first stirring shaft (32) and the second stirring shaft (33) stop rotating for a period of time to perform secondary oil discharge. Repeat the steps of secondary oil discharge several times until the oil discharge is completed and the slag discharge stage begins; (6) Slag discharge stage: the first stirring shaft (32) and the second stirring shaft (33) rotate to push the oil residue mass toward the oil liquid outlet (313), but not to the oil liquid outlet (313); then the rotation direction of the first stirring shaft (32) and the second stirring shaft (33) is changed to push the oil residue mass toward the oil residue outlet (312); the above steps are repeated multiple times; then the oil residue baffle (3121) moves until the oil residue outlet (312) is opened, and the first stirring shaft (32) and the second stirring shaft (33) rotate to push the oil residue mass toward the oil residue outlet (312), thereby completing slag discharge; (7) Filling stage: After the oil falls from the oil outlet (313), it passes along the diverter plate (67) and is filtered through the filter plate (63) into the oil storage tank (61), and then is automatically extracted through the filling device (64), completing the oil filling and obtaining the finished oil product.

10. A fully automatic intelligent grinding and stirring process according to claim 9, characterized in that: In the step S2, the particle size of the powder after fine grinding is 60-80 mesh.

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