A production preparation method and production process of rapeseed oil

Abstract

The present invention relates to a production preparation method and a production method of rapeseed oil, including a bottom plate. A support assembly is arranged at the upper end of the bottom plate. A drying cylinder is arranged on the support assembly. A stirring mechanism is arranged in the drying cylinder. A connecting elbow cylinder is arranged at one end of the drying cylinder. A magnetic separation cylinder is arranged on the upper side of the connecting elbow cylinder. A magnetic separation mechanism connected to the stirring mechanism is arranged on the magnetic separation cylinder. A screening mechanism connected to the magnetic separation mechanism is arranged at the upper end of the magnetic separation cylinder. Through the stirring mechanism of the present invention, the magnetic separation mechanism and the screening mechanism can be driven to operate. The screening mechanism can drive the rapeseed to rotate and at the same time drive it to shake and screen. The screening mechanism can also perform air separation on the rapeseed while driving it to shake, thereby improving the effect of screening and removing impurities from the rapeseed. The magnetic separation mechanism can perform magnetic separation on the rapeseed and timely discharge the metal foreign matters adsorbed by it. The stirring mechanism can drive the rapeseed to be dried and stirred.

Description

Technical Field

[0001] The present invention relates to the field of rapeseed processing, and particularly relates to a method for producing and preparing rapeseed oil and a production method thereof. Background Art

[0002] Rapeseed is the seed of the rapeseed plant, a cruciferous crop. The siliques of rapeseed are relatively long, with many pods and plump seeds. Rapeseed has a high oil content and is one of the main oil crops in China. Since foreign matters such as straw and metal mixed among rapeseeds usually need to be screened out before rapeseed is pressed and leached into rapeseed oil, technicians in related fields have also optimized the process of screening rapeseeds.

[0003] For more accurate comparison, for example, Chinese Patent No. CN213612497U discloses an impurity removal device for rapeseed oil processing. When in use, rapeseeds pass through the screen of the drum, and larger impurities in the rapeseeds are removed for the first step of impurity removal. When the drum is turned over with the screen facing downwards, the rapeseeds fall. Under the action of the first negative pressure fan, the light impurities in the rapeseeds are sucked to one side of the first filter screen, and the rapeseeds remain outside. Then, through the lifting of the support plate, the rapeseeds are shaken off from the first filter screen for the second step of impurity removal.

[0004] However, in the actual use process of the above-mentioned rapeseed oil processing impurity removal device, there are still the following deficiencies: 1. The drum can only remove impurities from rapeseed oil by rolling, which is a relatively single method, and the larger impurities screened out in the drum are difficult to be discharged outwards in time, resulting in poor screening and impurity removal effect of the drum.

[0005] 2. Metal foreign matters in rapeseeds cannot be screened out. If the rapeseeds after impurity removal by the above-mentioned comparative document are not subjected to magnetic separation, the metal foreign matters between the rapeseeds are likely to damage the subsequent oil pressing equipment and also reduce the quality of rapeseed oil formed. If the rapeseeds after being processed by the above-mentioned comparative document are subjected to magnetic separation again, the efficiency and effect of impurity removal of rapeseed oil are reduced.

[0006] Therefore, under the viewpoints stated above, there is still room for improvement in the technical means of screening and removing impurities from rapeseeds before producing rapeseed oil in the prior art. Summary of the Invention

[0007] To solve the above problems, the present invention provides a rapeseed oil production and preparation device, including a bottom plate. A support assembly is arranged at the upper end of the bottom plate. A drying cylinder is arranged on the support assembly. A stirring mechanism is arranged inside the drying cylinder. A connecting elbow cylinder is arranged at one end of the drying cylinder. A magnetic separation cylinder is arranged above the connecting elbow cylinder. A magnetic separation mechanism connected to the stirring mechanism is arranged on the magnetic separation cylinder. A screening mechanism connected to the magnetic separation mechanism is arranged at the upper end of the magnetic separation cylinder.

[0008] The described screening mechanism includes a support ring frame arranged at the bottom of the magnetic separation cylinder. A screening rotating rod is rotatably arranged in the middle of the support ring frame. Annular blocks are rotatably arranged on the outer side surface of the screening rotating rod and are distributed up and down. Uniformly distributed support rods are arranged on the outer side surfaces of the annular blocks. The lower support rods are in contact with the inner wall of the magnetic separation cylinder. A limiting cylinder is arranged between the outer side surfaces of the upper support rods. Arc-shaped plates are also rotatably arranged on the outer side surfaces of the support rods and are located above the limiting cylinder and the magnetic separation cylinder. Rubber rings that fit the arc-shaped plates are arranged at the upper ends of the limiting cylinder and the upper end of the magnetic separation cylinder. Screening holes are uniformly formed in the arc-shaped plates, and the lower screening holes are smaller than the upper screening holes. A shaking unit is arranged between the lower end of the arc-shaped plate and the corresponding annular block. Installation chutes are uniformly formed on the outer side surface of the screening rotating rod and are located inside the arc-shaped plates. Stirring plates that fit the corresponding arc-shaped plates are slidably arranged in the installation chutes.

[0009] Preferably, the shaking unit includes arc-shaped rods, anti-friction balls, driven sliders, sealing groove belts, reinforcement rings, annular corrugated plates, and scraping hole plates. The arc-shaped rods are uniformly arranged at the upper ends of the annular blocks. Anti-friction balls are arranged at the upper ends of the arc-shaped rods in a rolling fit manner. Limiting chutes that are staggered with the installation chutes are uniformly formed on the outer side surface of the screening rotating rod. Driven sliders are slidably arranged in the limiting chutes. Sealing groove belts made of elastic materials are arranged between the driven sliders and the upper side walls of the corresponding limiting chutes, and between the stirring plates and the upper side walls of the corresponding installation chutes. A reinforcement ring is also arranged between the upper ends of the stirring plates at the same height. An annular corrugated plate is arranged between the outer sides of the driven sliders and is located below the arc-shaped plate and corresponds to the annular block. The wave-shaped protrusions at the lower end of the annular corrugated plate are staggered with the arc-shaped rods. Scraping hole plates that fit the lower ends of the corresponding arc-shaped plates are uniformly arranged on the outer side surface of the annular corrugated plate.

[0010] Preferably, it further includes a feeding unit arranged at the upper end of the screening rotating rod. The feeding unit includes a screening mesh plate, a feeding cylinder, a feeding hopper, an installation ring, a stirring upper plate, a scraping plate, a reinforcement circular ring, and a reinforcement connecting plate. The screening mesh plate is rotatably arranged at the upper end of the screening rotating rod, and the diameter of the holes in the screening mesh plate is larger than the screening holes located below it. A feeding cylinder is arranged on the outer side surface of the screening mesh plate. A feeding hopper is arranged at the upper end of the feeding cylinder. Installation rings that are distributed up and down and fit the screening mesh plate are arranged on the outer side surface of the screening rotating rod. Stirring upper plates that fit the feeding hopper are uniformly arranged on the outer side surface of the upper installation ring. A scraping plate that fits the feeding cylinder is arranged on the outer side surface of the lower installation ring. Reinforcement circular rings are arranged at the lower end of the feeding cylinder, the upper and lower ends of the limiting cylinder, and the upper end of the magnetic separation cylinder. Reinforcement connecting plates are symmetrically arranged between the upper adjacent reinforcement circular rings and the lower adjacent reinforcement circular rings.

[0011] Preferably, it further includes an air separation and discharging unit for blowing air onto the upper side of the arc-shaped plate. The air separation and discharging unit includes a connecting block, a mounting plate, an air separator, a first side baffle, a second side baffle, a third side baffle, an air separation mesh plate, a wind blocking side plate, a discharging port and a material receiving assembly. The connecting block is arranged on the outer side surface of the reinforcing ring. A mounting plate is arranged between the connecting blocks. An air separator facing the upper side of the arc-shaped plate is mounted on the mounting plate. First side baffles symmetrically arranged at both the upper and lower ends of the mounting plate are connected to the corresponding connecting blocks, reinforcing connecting plates and reinforcing rings. Second side baffles away from the air separator are symmetrically arranged on the outer side surface of the lower reinforcing ring. A third side baffle is arranged on the outer side of the upper reinforcing ring. An air separation mesh plate is arranged at the lower end of the third side baffle. Wind blocking side plates symmetrically arranged between the air separation mesh plate and the mounting plate and connected to the corresponding reinforcing connecting plates are provided, and one of the wind blocking side plates is detachably mounted on the outer side of the reinforcing connecting plate. A discharging port for discharging materials is formed among the air separation mesh plate, the second side baffle and the wind blocking side plate. A material receiving assembly is arranged below the discharging port.

[0012] Preferably, the material receiving assembly includes a mounting ring, an extending bracket, a limiting side plate, an impurity box, a magnetic block, a limiting rear plate and a vertical support rod. The mounting ring located below the discharging port is fixedly sleeved on the outer side of the magnetic separation cylinder and connected to the magnetic separation mechanism. An E-shaped extending bracket is arranged on the outer side of the mounting ring. A limiting side plate extending upward is arranged at one end of the extending bracket away from the magnetic separation cylinder. An impurity box corresponding to the discharging port is arranged at the upper end of the extending bracket. A magnetic block is arranged at the rear end of the impurity box. A limiting rear plate with an L-shaped structure and magnetically adsorbed to the magnetic block is arranged at the end of the extending bracket. A vertical support rod connected to the drying cylinder is also arranged at the lower end of the extending bracket.

[0013] Preferably, the magnetic separation mechanism includes a magnetic stone ring frame, a mounting through groove, a mounting frame, a belt pulley vertical rod, a driven belt pulley, a transmission belt, a connecting ring plate, an electromagnet rod and a cleaning unit. The magnetic stone ring frame is arranged on the outer side surface of the screening rotating rod and inside the magnetic separation cylinder. A mounting through groove is formed on the outer side surface of the magnetic separation cylinder. A mounting frame in a U-shaped structure and located outside the mounting through groove is arranged between the outer side surfaces of the magnetic separation cylinder and the mounting ring. A belt pulley vertical rod is rotatably penetrated through the mounting frame. The lower end of the belt pulley vertical rod is in transmission connection with the stirring mechanism. Driven belt pulleys are arranged on the outer side surfaces of the belt pulley vertical rod and the screening rotating rod. A transmission belt is arranged between the driven belt pulleys. A connecting ring plate located inside the mounting frame is arranged on the outer side surface of the belt pulley vertical rod. Electromagnet rods located on both the upper and lower sides of the magnetic stone ring frame are arranged on the outer side surface of the connecting ring plate. The electromagnet rod is in a diamond structure. The electromagnet rods are symmetrically arranged and their magnetic force is stronger than that of the magnetic stone ring frame. A cleaning unit for removing metal foreign matters on the electromagnet rod outward is arranged inside the mounting frame.

[0014] Preferably, the cleaning unit includes a reset compression spring rod, a scraping plate, and a receiving box. A plurality of reset compression spring rods are symmetrically arranged at the upper and lower ends inside the mounting frame. A scraping plate is arranged between the telescopic ends on the opposite sides of the corresponding reset compression spring rods. A receiving box for receiving metal foreign objects is arranged at the lower end of the mounting frame.

[0015] Preferably, the stirring mechanism includes support connecting rods, a support inner ring, stirring rods, spiral stirring plates, stirring grooves, bevel gear 1, bevel gear 2, a driving motor, an opening and closing cylinder, an opening and closing plate, and a material receiving box. The support connecting rods are evenly arranged at one end of the inner wall of the drying cylinder away from the connecting elbow. A support inner ring is arranged between the support connecting rods. A stirring rod is rotatably arranged inside the support inner ring. One end of the stirring rod passes through the connecting elbow and is rotatably connected thereto. A spiral stirring plate made of a heat-conducting material is arranged on the outer side surface of the stirring rod. Electric heating wires for heating are arranged inside the spiral stirring plate. Stirring grooves are evenly arranged outside the spiral stirring plate. One end of the stirring rod close to the connecting elbow is located outside thereof and is provided with bevel gear 1. Bevel gear 2 is meshed with bevel gear 1 on the upper side. The middle part of bevel gear 2 is in transmission connection with the magnetic separation mechanism. A driving motor is arranged at one end of the stirring rod close to bevel gear 1. The driving motor is connected to the bottom plate through a motor seat. An opening and closing cylinder is arranged on the outer side of the end of the drying cylinder away from the connecting elbow through a cylinder seat. The telescopic end on the upper side of the opening and closing cylinder is provided with an opening and closing plate for blocking the drying cylinder. A material receiving box located below the opening and closing plate is arranged at the upper end of the bottom plate.

[0016] Preferably, the support assembly includes a support collar, support side plates, support legs, and strengthening blocks. The support collar is arranged on the outer side surface of the drying cylinder. The support side plates are arranged at the lower end of the connecting elbow. Support legs are symmetrically arranged on both the support collar and the lower end of the connecting elbow. A T-shaped strengthening block is arranged between the front and rear corresponding support legs.

[0017] In addition, the present invention also provides a rapeseed oil production method, including the following steps: S1: Start the stirring mechanism so that the stirring mechanism can drive the magnetic separation mechanism and the screening mechanism to operate. Then add rapeseeds to the upper end of the feeding unit, so that the rapeseeds are preliminarily screened by the feeding unit. After that, the rapeseeds pass downward through the feeding unit and fall onto the upper end of the arc plate. During this process, the air separation and discharging unit can perform air separation on the rapeseeds, so that the lighter impurities can fall into the material receiving assembly.

[0018] S2: After the rapeseeds fall onto the upper end of the arc plate, they will be subjected to shaking-type multiple screening driven by the shaking unit. During this process, the air separation and discharging unit can also play the role of air separation on the rapeseeds. After that, the rapeseeds will pass through the arc plate and downward through the magnetic separation mechanism. At this time, the magnetic separation mechanism can perform magnetic separation on the rapeseeds. The rapeseeds after magnetic separation can pass through the connecting elbow and enter the drying cylinder.

[0019] S3: The stirring mechanism can drive the rapeseeds located in the drying cylinder to be dried and stirred, so that the rapeseeds can be evenly dried. Finally, the stirring mechanism can drive the rapeseeds that have been screened, wind-selected, magnetic-separated and dried to fall outward into the receiving box, and then the rapeseeds can be processed by oil pressing equipment to complete the preparation of rapeseed oil.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] First, through the stirring mechanism of the present invention, the magnetic separation mechanism and the screening mechanism can be driven to operate. While the screening mechanism drives the rapeseeds to rotate, it can also drive them to shake. Compared with the prior art, the efficiency and effect of screening rapeseeds are improved. Moreover, the screening mechanism can also perform wind selection on the rapeseeds while driving them to shake, so that the lighter foreign matters can be blown out in time, thereby improving the screening effect of rapeseeds and avoiding the problem that the screened foreign matters affect the screening equipment.

[0022] Second, through the magnetic separation mechanism of the present invention, while the screening mechanism screens the rapeseeds, the rapeseeds can be magnetically separated. Compared with the prior art, on the one hand, it avoids the damage of metal foreign matters between rapeseeds to the oil pressing equipment, and on the other hand, it improves the efficiency of screening and removing impurities from rapeseeds; further, the magnetic separation mechanism can timely discharge the magnetically separated metal foreign matters outward, thus avoiding the problem that the metal adsorbed on the outside of the magnetic separation mechanism falls between the rapeseeds again, and further improving the magnetic separation effect of rapeseeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the drawings and embodiments.

[0024] Figure 1 is a schematic structural diagram of the present invention.

[0025] Figure 2 is a schematic structural diagram of the support assembly of the present invention.

[0026] Figure 3 is a schematic structural diagram of the screening mechanism of the present invention.

[0027] Figure 4 is a partial structural diagram of the screening mechanism of the present invention (viewed from bottom to top).

[0028] Figure 5 is a partial structural diagram of the screening mechanism of the present invention.

[0029] Figure 6 is a schematic structural diagram of the wind selection and discharging unit of the present invention.

[0030] Figure 7It is a schematic structural diagram of the material receiving component of the present invention (viewed from bottom to top).

[0031] Figure 8 It is a schematic structural diagram of the magnetic separation mechanism of the present invention.

[0032] Figure 9 It is a schematic structural diagram between the support component and the stirring mechanism of the present invention.

[0033] In the figure, 1 is the bottom plate; 3 is the drying cylinder; 5 is the connecting elbow; 6 is the magnetic separation cylinder;

[0034] 2 is the support component; 20 is the support sleeve ring; 21 is the support side plate; 22 is the support leg; 23 is the strengthening block;

[0035] 4 is the stirring mechanism; 40 is the support connecting rod; 41 is the support inner ring; 42 is the stirring rod; 43 is the spiral stirring plate; 44 is the stirring groove; 45 is the first bevel gear; 46 is the second bevel gear; 47 is the driving motor; 48 is the opening and closing cylinder; 49 is the opening and closing plate; 410 is the material receiving box;

[0036] 7 is the magnetic separation mechanism; 70 is the magnet ring frame; 71 is the installation through groove; 72 is the installation frame; 73 is the belt pulley vertical rod; 74 is the driven belt pulley; 75 is the transmission belt; 76 is the connecting ring plate; 77 is the electromagnet rod;

[0037] 78 is the cleaning unit; 780 is the reset compression spring rod; 781 is the scraping plate; 782 is the receiving box;

[0038] 8 is the screening mechanism; 80 is the support ring frame; 81 is the screening rotating rod; 82 is the annular block; 820 is the support rod; 83 is the limiting cylinder; 84 is the arc plate; 85 is the rubber ring; 840 is the screening hole; 810 is the stirring plate;

[0039] 86 is the shaking unit; 860 is the arc rod; 861 is the friction reducing ball; 862 is the driven slider; 863 is the sealing groove belt; 864 is the reinforcing ring; 865 is the annular corrugated plate; 866 is the scraping hole plate;

[0040] 87 is the feeding unit; 870 is the screening mesh plate; 871 is the feeding cylinder; 872 is the feeding hopper; 873 is the installation ring; 874 is the upper stirring plate; 875 is the scraping plate; 876 is the reinforcing circular ring; 877 is the reinforcing connecting plate;

[0041] 88 is the air separation and discharging unit; 880 is the connecting block; 881 is the installation plate; 882 is the air separator; 883 is the first side baffle; 884 is the second side baffle; 885 is the third side baffle; 886 is the air separation mesh plate; 887 is the wind shielding side plate; 888 is the discharging port;

[0042] 89. Feeding component; 890. Installation ring; 891. Extension bracket; 892. Limit side plate; 893. Impurity box; 894. Magnet block; 895. Limit rear plate; 896. Vertical support rod. Detailed implementation mode

[0043] The following combines the attached Figures 1-9 The embodiments of the present invention are described in detail below, but the present invention can be implemented in many different ways defined and covered by the claims.

[0044] The embodiments of the present application disclose a rapeseed oil production and preparation method and production method. It should be noted that the present invention is applied in the process of preparing rapeseed into rapeseed oil, and in terms of technical effects, it can stir, shake, screen, perform magnetic separation, and stir during drying of rapeseed only by using one electrical drive component, thereby improving the efficiency and effect of processing rapeseed.

[0045] Embodiment 1:

[0046] Refer to Figure 1 As shown, a rapeseed oil production and preparation device includes a bottom plate 1, a support assembly 2, a drying cylinder 3, a stirring mechanism 4, a connecting elbow 5, a magnetic separation cylinder 6, a magnetic separation mechanism 7, and a screening mechanism 8. A support assembly 2 is arranged at the upper end of the bottom plate 1, a drying cylinder 3 is arranged on the support assembly 2, a stirring mechanism 4 is arranged inside the drying cylinder 3, and the stirring mechanism 4 can stir and dry the rapeseed located inside the drying cylinder 3; One end of the drying cylinder 3 is provided with a connecting elbow 5, a magnetic separation cylinder 6 is arranged above the connecting elbow 5, a magnetic separation mechanism 7 connected to the stirring mechanism 4 is arranged on the magnetic separation cylinder 6, and a screening mechanism 8 connected to the magnetic separation mechanism 7 is arranged at the upper end of the magnetic separation cylinder 6.

[0047] During specific operation, the rapeseed to be screened is added downward from the upper end of the screening mechanism 8, so that the screening mechanism 8 can screen the rapeseed, and the non-metallic foreign substances doped in the rapeseed can be screened out. Then the rapeseed can fall downward and pass through the magnetic separation mechanism 7, so that the magnetic separation mechanism 7 can perform magnetic separation on the rapeseed. In this process, the metal foreign substances in the rapeseed can be screened out. After passing through the magnetic separation mechanism 7, the rapeseed will pass through the connecting elbow 5 and enter the drying cylinder 3. At this time, the stirring mechanism 4 can stir and dry the rapeseed in the drying cylinder 3. The dried rapeseed can be used for the production and preparation of rapeseed oil.

[0048] Refer to Figure 2As shown, it is the support assembly 2 in this application for supporting the drying cylinder 3 and connecting the bent cylinder 5; specifically, the support assembly 2 includes a support collar 20, support side plates 21, support legs 22 and strengthening blocks 23. The support collar 20 is arranged on the outer side surface of the drying cylinder 3, the support side plates 21 are arranged at the lower end of the connecting bent cylinder 5, support legs 22 are symmetrically arranged on both the support collar 20 and the lower end of the connecting bent cylinder 5. The support legs 22 can support the drying cylinder 3 through the support collar 20, and the support legs 22 can also support the connecting bent cylinder 5 through the support side plates 21; a strengthening block 23 with a T-shaped structure is arranged between the front and rear corresponding support legs 22 to improve the stability when the support legs 22 are installed.

[0049] Refer to Figure 3 As shown, it is the screening mechanism 8 in this application; specifically, the screening mechanism 8 includes a support ring frame 80, a screening rotating rod 81, an annular block 82, a support rod 820, a limiting cylinder 83, an arc plate 84, a rubber ring 85, screening holes 840, a shaking unit 86 and a stirring plate 810. The support ring frame 80 is arranged at the bottom of the magnetic separation cylinder 6, a screening rotating rod 81 is rotatably arranged in the middle of the support ring frame 80, annular blocks 82 are rotatably arranged on the outer side surface of the screening rotating rod 81 and are distributed up and down, and uniformly distributed support rods 820 are arranged on the outer side surfaces of the annular blocks 82. The lower support rods 820 are in contact with the inner wall of the magnetic separation cylinder 6, so that the screening rotating rod 81 can be installed more stably. When the screening mechanism 8 rotates under the drive of an external force, it cannot drive the annular blocks 82 to rotate.

[0050] A limiting cylinder 83 is arranged between the outer side surfaces of the upper support rods 820, and the limiting cylinder 83 can limit the rapeseed that falls downward; an arc plate 84 is also rotatably arranged on the outer side surface of the support rod 820 and is located above the limiting cylinder 83 and the magnetic separation cylinder 6, and the limiting cylinder 83 can support the arc plate 84; rubber rings 85 that are in contact with the arc plate 84 are arranged at the upper end of the limiting cylinder 83 and the upper end of the magnetic separation cylinder 6. When the arc plate 84 moves up and down under the drive of an external force, the rubber rings 85 can reduce the impact of the arc plate 84 on the upper ends of the limiting cylinder 83 and the magnetic separation cylinder 6; screening holes 840 are uniformly opened on the arc plate 84. When the rapeseed falls to the upper end of the arc plate 84, it can pass through the screening holes 840 and fall downward, while foreign objects larger than the rapeseed are difficult to fall downward, so that the arc plate 84 can screen the rapeseed.

[0051] The screening holes 840 on the lower side are smaller than those on the upper side, so that the arc-shaped plate 84 on the lower side can further screen the rapeseeds, thereby improving the screening effect of the rapeseeds; a shaking unit 86 is arranged between the lower end of the arc-shaped plate 84 and the corresponding annular block 82. When the screening rotating rod 81 rotates, the arc-shaped plate 84 can be driven to shake up and down in cooperation with the annular block 82 and the shaking unit 86; mounting chutes are evenly formed on the outer side surface of the screening rotating rod 81 and located inside the arc-shaped plate 84, and stirring plates 810 that are in fit with the corresponding arc-shaped plates 84 are slidably arranged in the mounting chutes respectively.

[0052] When the screening rotating rod 81 rotates, it can drive the stirring plates 810 to rotate. When the arc-shaped plate 84 shakes up and down, it can also drive the stirring plates 810 to shake up and down together. Therefore, the rapeseeds located inside the upper end of the arc-shaped plate 84 can be displaced while being shaken up and down by the stirring plates 810. On the one hand, the efficiency of the rapeseeds passing through the arc-shaped plate 84 is improved. On the other hand, the lighter foreign matters can be lifted upwards to reduce the probability of the foreign matters blocking the screening holes 840.

[0053] Refer to Figure 4 and Figure 5 As shown in the figure, it is the shaking unit 86 for driving the arc-shaped plate 84 to shake up and down in the present application; specifically, the shaking unit 86 includes arc-shaped rods 860, anti-friction balls 861, driven sliders 862, sealing groove belts 863, reinforcing rings 864, annular corrugated plates 865 and hole scraping plates 866. The arc-shaped rods 860 are evenly arranged at the upper end of the annular block 82, and anti-friction balls 861 are arranged at the upper ends of the arc-shaped rods 860 in a rolling fit manner. Limit chutes that are distributed alternately with the mounting chutes are evenly formed on the outer side surface of the screening rotating rod 81, and driven sliders 862 are slidably arranged in the limit chutes respectively.

[0054] Sealing groove belts 863 made of elastic materials are arranged between the driven sliders 862 and the upper side walls of the corresponding limit chutes, and between the stirring plates 810 and the upper side walls of the corresponding mounting chutes. The sealing groove belts 863 can prevent the rapeseeds from entering the mounting chutes and the limit chutes, thereby avoiding the influence of the rapeseeds on the up and down sliding processes of the stirring plates 810 and the driven sliders 862; a reinforcing ring 864 is also arranged between the upper ends of the stirring plates 810 at the same height. The reinforcing ring 864 can improve the stability of the installation of the stirring plates 810 and also maintain the consistency of the up and down movement of the stirring plates 810.

[0055] Between the outer sides of the driven slider 862, there is a ring-shaped corrugated plate 865 located below the arc-shaped plate 84 and corresponding to the ring-shaped block 82. The wavy protrusions at the lower end of the ring-shaped corrugated plate 865 and the arc-shaped rod 860 are staggeredly distributed. When the screening rotating rod 81 rotates, it can drive the ring-shaped corrugated plate 865 to rotate through the driven slider 862. When the ring-shaped corrugated plate 865 rotates, it can reciprocate up and down under the cooperation of the arc-shaped rod 860 and the anti-friction balls 861. The up and down jitter of the ring-shaped corrugated plate 865 can drive the arc-shaped plate 84 at its upper end to jitter up and down, thereby playing a role in driving the rapeseed inside the inner side of the upper end of the arc-shaped plate 84 to jitter; at this time, the limit chute can limit the sliding trajectory of the driven slider 862, the sealing groove belt 863 can expand and contract accordingly, and the anti-friction balls 861 can play a role in reducing the friction between the ring-shaped corrugated plate 865 and the arc-shaped rod 860.

[0056] On the outer side surface of the ring-shaped corrugated plate 865, there are also evenly arranged scraping hole plates 866 that fit with the lower ends of the corresponding arc-shaped plates 84. The scraping hole plates 866 can rotate together with the ring-shaped corrugated plate 865 and can dial the foreign objects stuck in the screening holes on the arc-shaped plate 84 during the rotation process, thereby playing a role in dredging the screening holes, thus reducing the impact on rapeseed screening caused by the screening holes being blocked by foreign objects.

[0057] Embodiment 2:

[0058] Continue to refer to Figure 4 and Figure 5 As shown, on the basis of Embodiment 1, through the above-disclosed technical solutions, it can be seen that the arc-shaped plate 84 is in an up-and-down jitter state, and the jittering arc-shaped plate 84 is not conducive to adding raw materials to its upper end. Therefore, in order to facilitate the addition of rapeseed raw materials, a feeding unit 87 is provided at the upper end of the screening rotating rod 81; specifically, the feeding unit 87 includes a screening mesh plate 870, a feeding cylinder 871, a feeding hopper 872, a mounting ring 873, a stirring upper plate 874, a scraping plate 875, a reinforcing ring 876, and a reinforcing connecting plate 877.

[0059] The screening mesh plate 870 is rotatably arranged at the upper end of the screening rotating rod 81, and the diameter of the holes on the screening mesh plate 870 is larger than that of the screening holes 840 located below it. A feed cylinder 871 is arranged on the outer side surface of the screening mesh plate 870, a feed hopper 872 is arranged at the upper end of the feed cylinder 871, mounting rings 873 which are distributed up and down and are in contact with the screening mesh plate 870 are arranged on the outer side surface of the screening rotating rod 81, stirring upper plates 874 which are in contact with the feed hopper 872 are evenly arranged on the outer side surface of the upper mounting ring 873, a scraper 875 which is in contact with the feed cylinder 871 is arranged on the outer side surface of the lower mounting ring 873, reinforcing rings 876 are arranged at the lower end of the feed cylinder 871, the upper and lower ends of the limiting cylinder 83, and the upper end of the magnetic separation cylinder 6, and reinforcing connecting plates 877 are symmetrically arranged between the adjacent upper reinforcing rings 876 and the adjacent lower reinforcing rings 876.

[0060] The cooperation of the reinforcing connecting plates 877 and the reinforcing rings 876 can fix the feed cylinder 871, and indirectly fix the screening mesh plate 870, so that the screening mesh plate 870 cannot be driven to rotate when the screening rotating rod 81 rotates. The non-rotating and non-vibrating screening mesh plate 870 is convenient for adding rapeseed raw materials to its upper end. The feed hopper 872 can limit the rapeseed during the adding process, so as to prevent the rapeseed from falling outwards from the upper end of the screening mesh plate 870 during the adding process.

[0061] When the screening rotating rod 81 rotates, it can drive the mounting rings 873, the stirring upper plates 874 and the scraper 875 to rotate. When the stirring upper plates 874 rotate, they can drive the rapeseed to move, thereby improving the efficiency of the rapeseed passing through the screening mesh plate 870. The screening mesh plate 870 can preliminarily screen the rapeseed, thus further improving the screening effect of the rapeseed. When the scraper 875 rotates with the screening rotating rod 81, it can dial the foreign matters stuck on the screening mesh plate 870, thereby reducing the influence on the screening of rapeseed caused by the blockage of the screening mesh plate 870 by foreign matters; the reinforcing rings can improve the strength of the openings of the feed cylinder 871, the limiting cylinder 83 and the magnetic separation cylinder 6 to avoid deformation problems after long-term use, and the reinforcing connecting plates 877 can improve the installation stability of the feed cylinder 871 and the limiting cylinder 83.

[0062] Refer to Figure 6As shown in the figure, in order to facilitate the outward discharge of the lighter foreign objects separated from the upper end of the arc-shaped plate 84 and to improve the screening effect of rapeseeds, a pneumatic separation and discharging unit 88 for blowing air onto the upper side of the arc-shaped plate 84 is provided. Specifically, the pneumatic separation and discharging unit 88 includes a connecting block 880, a mounting plate 881, a pneumatic separator 882, a first side baffle 883, a second side baffle 884, a third side baffle 885, a pneumatic separation screen plate 886, a wind shielding side plate 887, a discharging port 888, and a material receiving assembly 89. The connecting block 880 is arranged on the outer side surface of the reinforcing ring 876. An mounting plate 881 is arranged between the connecting blocks 880, and a pneumatic separator 882 facing the upper side of the arc-shaped plate 84 is mounted on the mounting plate 881.

[0063] When the rapeseeds fall downward through the screening mesh plate 870 and when the rapeseeds fall downward through the upper arc-shaped plate 84, the pneumatic separator 882 can blow air onto the upper end of the arc-shaped plate 84. At this time, the lighter foreign objects that have passed through the screening mesh plate 870 and the upper arc-shaped plate 84 will be blown and move to the side away from the pneumatic separator 882, so that the foreign objects are easily dropped to the outside of the arc-shaped plate 84, thereby improving the screening effect of rapeseeds. Further, if the lighter foreign objects that have passed through the screening mesh plate 870 and the upper arc-shaped plate 84 fail to drop to the outside of the arc-shaped plate 84, the arc-shaped plate 84 can also drive the foreign objects located at its upper end to shake together during the process of driving the rapeseeds to shake up and down, and there is a probability that the pneumatic separator 882 will blow the foreign objects outwards during the shaking process, thus playing a role in discharging the lighter foreign objects separated from the upper end of the arc-shaped plate 84 to the outside.

[0064] The first side baffle 883 connected to the corresponding connecting block 880, reinforcing connecting plate 877, and reinforcing ring 876 is symmetrically arranged at both the upper and lower ends of the mounting plate 881. The second side baffle 884 on the side away from the pneumatic separator 882 is symmetrically arranged on the outer side surface of the lower reinforcing ring 876. The third side baffle 885 is arranged on the outer side of the upper reinforcing ring 876. The pneumatic separation screen plate 886 is arranged at the lower end of the third side baffle 885. Wind shielding side plates 887 connected to the corresponding reinforcing connecting plates 877 are symmetrically arranged between the pneumatic separation screen plate 886 and the mounting plate 881, and one of the wind shielding side plates 887 is detachably mounted on the outer side of the reinforcing connecting plate 877. A discharging port 888 for discharging materials is formed among the pneumatic separation screen plate 886, the second side baffle 884, and the wind shielding side plate 887. The material receiving assembly 89 is arranged below the discharging port 888.

[0065] The above-mentioned side baffle one 883, side baffle two 884 and side baffle three 885 can limit the upper and lower sides of the air separator 882, while the wind-blocking side plate 887 can limit the front and rear sides of the air separator 882 to prevent the wind blown out by the air separator 882 from dispersing lighter foreign objects. The wind-selection net plate 886 can prevent the wind blown out by the air separator 882 from being discharged outward, so that the lighter foreign objects can be blocked by the wind-selection net plate 886 after being blown away by the air separator 882. The blocked foreign objects will fall downward and be discharged downward from the discharge port 888. At this time, the material receiving assembly 89 can receive and collect the foreign objects.

[0066] Refer to Figure 6 and Figure 7 As shown, that is, the material receiving assembly 89 for receiving and collecting lighter foreign objects in the present application; specifically, the material receiving assembly 89 includes a mounting ring 890, an extension bracket 891, a limit side plate 892, an impurity box 893, a magnetic block 894, a limit rear plate 895 and a vertical support rod 896. The mounting ring 890 located below the discharge port 888 is fixedly sleeved outside the magnetic separation cylinder 6 and connected to the magnetic separation mechanism 7. An E-shaped extension bracket 891 is arranged on the outer side of the mounting ring 890. One end of the extension bracket 891 away from the magnetic separation cylinder 6 is provided with an upward-extending limit side plate 892, and an impurity box 893 corresponding to the discharge port 888 is arranged at the upper end of the extension bracket 891.

[0067] The upper opening of the impurity box 893 is located directly below the discharge port 888, so that the foreign objects can fall into the impurity box 893 after being blocked by the wind-selection net plate 886. The mounting ring 890 and the extension bracket 891 can support the impurity box 893. When there is an appropriate amount of foreign objects in the impurity box 893, the impurity box 893 can be taken outwards and the foreign objects inside can be emptied and then put back to the upper end of the extension bracket 891. The limit side plate 892 can limit the left side of the impurity box 893.

[0068] In order to make the upper opening of the impurity box 893 more accurately aligned with the discharge port 888, a magnetic block 894 is arranged at the rear end of the impurity box 893, and an L-shaped limit rear plate 895 that is magnetically adsorbed to the magnetic block 894 is arranged at the end of the extension bracket 891. When the impurity box 893 is placed on the upper end of the extension bracket 891, the magnetic adsorption between the magnetic block 894 and the limit rear plate 895 can position the impurity box 893, so that the impurity box 893 can be aligned with the discharge port 888; a vertical support rod 896 connected to the drying cylinder 3 is also arranged at the lower end of the extension bracket 891, and the vertical support rod 896 can support the extension bracket 891, thereby improving the stability of the installation of the extension bracket 891.

[0069] Embodiment 3:

[0070] Refer to Figure 8As shown, on the basis of the second embodiment, in order to be able to magnetically separate the rapeseed while driving the screening rotating rod 81 to rotate, a magnetic separation mechanism 7 is provided on the magnetic separation cylinder 6 for driving the screening rotating rod 81 to rotate under the drive of the stirring mechanism 4; specifically, the magnetic separation mechanism 7 includes a magnet ring frame 70, a mounting groove 71, a mounting frame 72, a pulley vertical rod 73, a driven pulley 74, a transmission belt 75, a connecting ring plate 76, an electromagnet rod 77 and a cleaning unit 78.

[0071] The magnetic ring frame 70 is arranged on the outer side of the screening rotating rod 81 and is located on the inner side of the magnetic separation cylinder 6. When the screening rotating rod 81 is driven to rotate by an external force, the magnetic ring frame 70 can magnetically separate the rapeseed, so that the metal substances in the rapeseed can be adsorbed by the magnetic ring frame 70, thereby avoiding the influence of metal foreign matter in the rapeseed on the rapeseed oil extraction process.

[0072] A mounting groove 71 is provided on the outer surface of the magnetic separation cylinder 6, and a mounting frame 72 with a 匚-shaped structure and located on the outer side of the mounting groove 71 is provided between the magnetic separation cylinder 6 and the outer side surface of the mounting ring 890. A pulley hanging rod 73 is rotatably passed through the mounting frame 72, and the lower end of the pulley hanging rod 73 is transmission-connected to the stirring mechanism 4. Driven pulleys 74 are provided on the outer sides of the pulley hanging rod 73 and the screening rotating rod 81, and the diameter of the driven pulley 74 on the pulley hanging rod 73 is larger than the diameter of the driven pulley 74 on the outer side of the screening rotating rod 81, and a transmission belt 75 is provided between the driven pulleys 74, so that the rotation frequency of the screening rotating rod 81 is higher than the rotation frequency of the belt hanging rod.

[0073] When the stirring mechanism 4 is in operation, it can drive the pulley vertical rod 73 to rotate. When the pulley vertical rod 73 rotates, it can drive the screening rotating rod 81 to rotate through the driven pulley 74 and the transmission belt 75. The screening rotating rod 81 can drive the above-mentioned screening mechanism 8 to operate. When the screening rotating rod 81 rotates, it can also drive the magnetic ring frame 70 to perform magnetic separation at different positions, thereby improving the magnetic separation effect of the magnetic ring frame 70.

[0074] In order to facilitate the timely discharge of metal foreign matter adsorbed on the magnetic ring frame 70, a connecting ring plate 76 located on the inner side of the mounting frame 72 is provided on the outer side of the pulley vertical rod 73, and electromagnet rods 77 located on the upper and lower sides of the magnetic ring frame 70 are provided on the outer side of the connecting ring plate 76. The electromagnet rods 77 are of a diamond structure, symmetrically arranged and have a stronger magnetic force than the magnetic ring frame 70. A cleaning unit 78 for removing metal foreign matter on the electromagnet rods 77 is provided on the inner side of the mounting frame 72.

[0075] When the strip hanging rod drives the connecting ring plate 76 and the electromagnet rod 77 to rotate to the magnet ring frame 70, the electromagnet rod 77 located in the magnetic separation cylinder 6 will be energized and enabled to suck away the metal foreign objects adsorbed on the magnet ring frame 70. When the electromagnet rod 77 adsorbed with metal foreign objects rotates to the cleaning unit 78, the electromagnet rod 77 will be de-energized, and the metal foreign objects adsorbed by the magnetic force on its outer side can fall downward into the cleaning unit 78, and the cleaning unit 78 will further clean the surface of the electromagnet rod 77, thereby improving the cleaning effect of the metal foreign objects adsorbed on the electromagnet rod 77.

[0076] Continue to refer to Figure 8 As shown, that is, the cleaning unit 78 in the present application; specifically, the cleaning unit 78 includes a reset compression spring rod 780, a scraping plate 781 and a receiving box 782. A plurality of reset compression spring rods 780 are symmetrically arranged at the upper and lower ends inside the mounting frame 72. A scraping plate 781 is arranged between the telescopic ends on the opposite sides of the corresponding reset compression spring rods 780. A receiving box 782 for receiving metal foreign objects is arranged at the lower end of the mounting frame 72; when the diamond-shaped electromagnet rod 77 moves to contact the scraping plate 781, it will squeeze the scraping plate 781 and cause the scraping plate 781 to move upward and downward respectively. During this process, the scraping plate 781 can scrape the metal foreign objects on the outer side of the electromagnet rod 77 outward, and the scraped metal foreign objects will fall downward into the receiving box 782. When the electromagnet rod 77 no longer squeezes the scraping plate 781, the scraping plate 781 will be reset under the elastic action of the reset compression spring rod 780 to facilitate the next scraping treatment of the electromagnet rod 77.

[0077] Refer to Figure 9 As shown, that is, the stirring mechanism 4 in the present application that can not only stir and dry the rapeseed in the drying cylinder 3, but also drive the belt pulley hanging rod 73 to rotate to indirectly drive the screening mechanism 8 to operate; specifically, the stirring mechanism 4 includes a support connecting rod 40, a support inner ring 41, a stirring rod 42, a spiral stirring plate 43, a stirring groove 44, a bevel gear one 45, a bevel gear two 46, a driving motor 47, an opening and closing cylinder 48, an opening and closing plate 49 and a receiving box 410. The support connecting rods 40 are uniformly arranged at one end of the inner wall of the drying cylinder 3 away from the connecting elbow 5.

[0078] A support inner ring 41 is arranged between the support connecting rods 40. A stirring rod 42 is rotatably arranged inside the support inner ring 41. The support inner ring 41 and the support connecting rods 40 can support the left end of the stirring rod 42; one end of the stirring rod 42 passes through the connecting elbow 5 and is rotatably connected thereto. The connecting elbow 5 can support the right end of the stirring rod 42; a spiral stirring plate 43 made of a heat-conducting material is arranged on the outer side of the stirring rod 42, and an electric heating wire for heating is arranged inside the spiral stirring plate 43; when the stirring rod 42 rotates under the drive of an external force, it can drive the spiral stirring plate 43 to stir and dry the rapeseed in the drying cylinder 3.

[0079] The outer side of the spiral stirring plate 43 is evenly provided with stirring grooves 44, which are convenient for improving the stirring effect of the spiral stirring plate 43 on rapeseeds; one end of the stirring rod 42 close to the connecting elbow 5 is located on its outer side and is provided with a first bevel gear 45. A second bevel gear 46 is meshed with the upper side of the first bevel gear 45. The middle of the second bevel gear 46 is connected to the belt pulley vertical rod 73. One end of the stirring rod 42 close to the first bevel gear 45 is provided with a driving motor 47, and the driving motor 47 is connected to the bottom plate 1 through a motor base; the rotation of the output shaft of the driving motor 47 can drive the stirring rod 42 to rotate, thereby driving the spiral stirring plate 43 to stir rapeseeds; at the same time, when the stirring rod 42 rotates, it can drive the belt pulley vertical rod 73 to rotate through the cooperation of the first bevel gear 45 and the second bevel gear 46. When the belt pulley vertical rod 73 rotates, it can drive the screening rotating rod 81 to rotate through the driven belt pulley 74 and the transmission belt 75, so that the screening rotating rod 81 can drive the screening mechanism 8 to operate.

[0080] One end of the drying cylinder 3 far from the connecting elbow 5 is provided with an opening and closing cylinder 48 through a cylinder seat on the outer side. The telescopic end on the upper side of the opening and closing cylinder 48 is provided with an opening and closing plate 49 for blocking the drying cylinder 3. A receiving box 410 is arranged on the upper end of the bottom plate 1 and is located below the opening and closing plate 49; when the rapeseeds in the drying cylinder 3 are being stirred and dried, the opening and closing cylinder 48 drives the opening and closing plate 49 to move downward to block the left end opening of the drying cylinder 3, preventing the rapeseeds in the drying cylinder 3 from falling out before being completely dried; when the rapeseeds in the drying cylinder 3 are dried in due course, the opening and closing cylinder 48 drives the opening and closing plate 49 to move upward again, so that the opening and closing plate 49 no longer blocks the drying cylinder 3, and the rapeseeds in the drying cylinder 3 can be discharged to the left into the receiving box 410, and the spiral stirring plate 43 can also drive the rapeseeds to move to the left to improve the efficiency of discharging rapeseeds.

[0081] In addition, the present invention also provides a method for producing rapeseed oil, including the following steps: S1: Start the stirring mechanism 4 so that the stirring mechanism 4 can drive the magnetic separation mechanism 7 and the screening mechanism 8 to operate, and then add rapeseeds to the upper end of the feeding unit 87, so that the rapeseeds are preliminarily screened by the feeding unit 87. Then the rapeseeds fall downward through the feeding unit 87 and land on the upper end of the arc plate 84. During this process, the air separation discharging unit 88 can perform air separation on the rapeseeds, so that the lighter impurities can fall into the material receiving assembly 89.

[0082] S2: After the rapeseeds fall on the upper end of the arc plate 84, they will be subjected to shaking-type multiple screening driven by the shaking unit 86. During this process, the air separation discharging unit 88 can also play the role of air separation on the rapeseeds. Then the rapeseeds will pass through the arc plate 84 and pass downward through the magnetic separation mechanism 7. At this time, the magnetic separation mechanism 7 can perform magnetic separation on the rapeseeds. The rapeseeds after magnetic separation can pass through the connecting elbow 5 and enter the drying cylinder 3.

[0083] S3: The stirring mechanism 4 can drive the rapeseed located in the drying cylinder 3 to be dried and stirred, so that the rapeseed can be evenly dried. Finally, the stirring mechanism 4 can drive the rapeseed after screening, winnowing, magnetic separation and drying to fall outward into the material receiving box 410, and then the rapeseed can be processed by oil pressing equipment to complete the preparation of rapeseed oil.

[0084] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0085] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An apparatus for producing and preparing rapeseed oil, comprising a bottom plate (1), characterized in that: A support assembly (2) is provided at the upper end of the bottom plate (1). A drying cylinder (3) is provided on the support assembly (2). A stirring mechanism (4) is provided inside the drying cylinder (3). A connecting elbow (5) is provided at one end of the drying cylinder (3). A magnetic separation cylinder (6) is provided above the connecting elbow (5). A magnetic separation mechanism (7) connected to the stirring mechanism (4) is provided on the magnetic separation cylinder (6). A screening mechanism (8) connected to the magnetic separation mechanism (7) is provided at the upper end of the magnetic separation cylinder (6), where: The screening mechanism (8) includes a support ring frame (80) provided at the bottom of the magnetic separation cylinder (6). A screening rotating rod (81) is rotatably provided in the middle of the support ring frame (80). Annular blocks (82) distributed up and down are rotatably provided on the outer side surface of the screening rotating rod (81). Uniformly distributed support rods (820) are provided on the outer side surfaces of the annular blocks (82). The lower support rods (820) are in contact with the inner wall of the magnetic separation cylinder (6). A limiting cylinder (83) is provided between the outer side surfaces of the upper support rods (820). Arc-shaped plates (84) located above the limiting cylinder (83) and the magnetic separation cylinder (6) are also rotatably provided on the outer side surfaces of the support rods (820). Rubber rings (85) in contact with the arc-shaped plates (84) are provided at the upper end of the limiting cylinder (83) and the upper end of the magnetic separation cylinder (6). Screening holes (840) are uniformly formed in the arc-shaped plates (84), and the lower screening holes (840) are smaller than the upper screening holes (840). A shaking unit (86) is provided between the lower end of the arc-shaped plate (84) and the corresponding annular block (82). Installation chutes are uniformly formed on the outer side surface of the screening rotating rod (81) inside the arc-shaped plates (84). Stirring plates (810) in contact with the corresponding arc-shaped plates (84) are slidably provided in the installation chutes; The magnetic separation mechanism (7) comprises a magnet ring frame (70), a mounting groove (71), a mounting frame (72), a pulley hanging rod (73), a driven pulley (74), a transmission belt (75), a connecting ring plate (76), an electromagnet rod (77) and a cleaning unit (78). The magnet ring frame (70) is arranged on the outer side of the screening rotating rod (81) and is located on the inner side of the magnetic separation cylinder (6). The mounting groove (71) is provided on the outer side of the magnetic separation cylinder (6). A mounting frame (72) having a 匚-shaped structure and located on the outer side of the mounting groove (71) is provided between the outer side surfaces of the magnetic separation cylinder (6) and the mounting circular ring (890). A pulley hanging rod (73) is rotatably passed through the mounting frame (72). The pulley hanging rod (73) is provided below the pulley hanging rod (73). The end is connected to the stirring mechanism (4) in transmission, the outer side surfaces of the pulley hanging rod (73) and the screening rotating rod (81) are both provided with driven pulleys (74), a transmission belt (75) is provided between the driven pulleys (74), the outer side surface of the pulley hanging rod (73) is provided with a connecting ring plate (76) located inside the mounting frame (72), the outer side surface of the connecting ring plate (76) is provided with an electromagnet rod (77) located on the upper and lower sides of the magnet ring frame (70), the electromagnet rod (77) is a rhombus structure, the electromagnet rod (77) is symmetrically arranged and its magnetic force is stronger than that of the magnet ring frame (70), and the inner side of the mounting frame (72) is provided with a cleaning unit (78) for removing metal foreign matter on the electromagnet rod (77) to the outside; The cleaning unit (78) comprises a reset spring rod (780), a scraper plate (781) and a receiving box (782); a plurality of reset spring rods (780) are symmetrically arranged at the upper and lower ends of the inner side of the mounting frame (72); a scraper plate (781) is arranged between the telescopic ends on the opposite sides of the corresponding reset spring rods (780); and a receiving box (782) for receiving metal foreign matter is arranged at the lower end of the mounting frame (72).

2. The rapeseed oil production and preparation device according to claim 1, characterized in that: The described jitter unit (86) includes an arc-shaped rod (860), antifriction balls (861), driven sliders (862), a slot-sealing belt (863), a reinforcement ring (864), an annular corrugated plate (865), and a scraping hole plate (866). The arc-shaped rods (860) are evenly arranged at the upper end of the annular block (82). Antifriction balls (861) are arranged at the upper ends of the arc-shaped rods (860) through a rolling fit. Limiting chutes staggered with the installation chutes are evenly formed on the outer side surface of the screening rotating rod (81). Driven sliders (862) are slidably arranged in the limiting chutes. A slot-sealing belt (863) made of an elastic material is arranged between the driven slider (862) and the upper side wall of the corresponding limiting chute, and between the stirring plate (810) and the upper side wall of the corresponding installation chute. A reinforcement ring (864) is further arranged between the upper ends of the stirring plates (810) at the same height. An annular corrugated plate (865) located below the arc-shaped plate (84) and corresponding to the annular block (82) is arranged between the outer sides of the driven sliders (862). The wave-shaped protrusions at the lower end of the annular corrugated plate (865) are staggered with the arc-shaped rods (860). Scraping hole plates (866) that fit the lower ends of the corresponding arc-shaped plates (84) are evenly arranged on the outer side surface of the annular corrugated plate (865).

3. The rapeseed oil production and preparation device according to claim 1 further includes a feeding unit (87) provided at the upper end of the screening rotating rod (81), and is characterized in that: The described feeding unit (87) includes a screening mesh plate (870), a feeding cylinder (871), a feeding hopper (872), an installation ring (873), an upper stirring plate (874), a scraping plate (875), a reinforcement ring (876), and a reinforcement connecting plate (877). The screening mesh plate (870) is rotatably arranged at the upper end of the screening rotating rod (81), and the diameter of the holes in the screening mesh plate (870) is larger than that of the screening holes (840) located below it. A feeding cylinder (871) is arranged on the outer side surface of the screening mesh plate (870). A feeding hopper (872) is arranged at the upper end of the feeding cylinder (871). Installation rings (873) arranged vertically and fitting the screening mesh plate (870) are arranged on the outer side surface of the screening rotating rod (81). Upper stirring plates (874) that fit the feeding hopper (872) are evenly arranged on the outer side surface of the upper installation ring (873). A scraping plate (875) that fits the feeding cylinder (871) is arranged on the outer side surface of the lower installation ring (873). Reinforcement rings (876) are arranged at the lower end of the feeding cylinder (871), at the upper and lower ends of the limiting cylinder (83), and at the upper end of the magnetic separation cylinder (6). Reinforcement connecting plates (877) are symmetrically arranged between the adjacent upper reinforcement rings (876) and between the adjacent lower reinforcement rings (876).

4. A rapeseed oil production and preparation device according to claim 3, further comprising an air separation and discharging unit (88) for blowing air on the upper side of the arc-shaped plate (84), characterized in that: The described air separation and discharging unit (88) includes a connecting block (880), a mounting plate (881), an air separator (882), a first side baffle (883), a second side baffle (884), a third side baffle (885), an air separation mesh plate (886), a wind shielding side plate (887), a discharging port (888) and a material receiving assembly (89). The connecting block (880) is arranged on the outer side surface of the reinforcing ring (876). A mounting plate (881) is arranged between the connecting blocks (880). An air separator (882) facing the upper side of the arc-shaped plate (84) is mounted on the mounting plate (881). First side baffles (883) symmetrically connected to the corresponding connecting blocks (880), reinforcing connecting plates (877) and reinforcing rings (876) are symmetrically arranged at both the upper and lower ends of the mounting plate (881). Second side baffles (884) on the outer side surface of the lower reinforcing ring (876) and away from the air separator (882) are also symmetrically arranged. A third side baffle (885) is arranged on the outer side of the upper reinforcing ring (876). An air separation mesh plate (886) is arranged at the lower end of the third side baffle (885). Wind shielding side plates (887) symmetrically connected to the corresponding reinforcing connecting plates (877) are arranged between the air separation mesh plate (886) and the mounting plate (881). And one of the wind shielding side plates (887) is detachably mounted on the outer side of the reinforcing connecting plate (877). A discharging port (888) for discharging materials is formed among the air separation mesh plate (886), the second side baffle (884) and the wind shielding side plate (887). A material receiving assembly (89) is arranged below the discharging port (888).

5. The rapeseed oil production and preparation device according to claim 4, characterized in that: The described material receiving assembly (89) includes a mounting ring (890), an extending bracket (891), a limiting side plate (892), an impurity box (893), a magnetic block (894), a limiting rear plate (895) and a vertical support rod (896). The mounting ring (890) located below the discharging port (888) is fixedly sleeved on the outer side of the magnetic separation cylinder (6) and connected to the magnetic separation mechanism (7). An E-shaped extending bracket (891) is arranged on the outer side of the mounting ring (890). A limiting side plate (892) extending upward is arranged at one end of the extending bracket (891) away from the magnetic separation cylinder (6). An impurity box (893) corresponding to the discharging port (888) is arranged at the upper end of the extending bracket (891). A magnetic block (894) is arranged at the rear end of the impurity box (893). A limiting rear plate (895) with an L-shaped structure and magnetically adsorbed to the magnetic block (894) is arranged at the end of the extending bracket (891). A vertical support rod (896) connected to the drying cylinder (3) is also arranged at the lower end of the extending bracket (891).

6. The rapeseed oil production and preparation device according to claim 1, characterized in that: The described stirring mechanism (4) includes a support connecting rod (40), a support inner ring (41), a stirring rod (42), a spiral stirring plate (43), a stirring groove (44), a bevel gear one (45), a bevel gear two (46), a driving motor (47), an opening and closing cylinder (48), an opening and closing plate (49), and a material receiving box (410). The support connecting rods (40) are evenly arranged at one end of the inner wall of the drying cylinder (3) far from the connecting elbow (5). A support inner ring (41) is arranged between the support connecting rods (40). A stirring rod (42) is rotatably arranged inside the support inner ring (41). One end of the stirring rod (42) passes through the connecting elbow (5) and is rotatably connected thereto. A spiral stirring plate (43) made of a heat-conducting material is arranged on the outer side surface of the stirring rod (42). An electric heating wire for heating is arranged inside the spiral stirring plate (43). Stirring grooves (44) are evenly arranged on the outer side of the spiral stirring plate (43). A bevel gear one (45) is arranged on the outer side of one end of the stirring rod (42) close to the connecting elbow (5). A bevel gear two (46) is meshed with the upper side of the bevel gear one (45). The middle of the bevel gear two (46) is in transmission connection with the magnetic separation mechanism (7). A driving motor (47) is arranged at one end of the stirring rod (42) close to the bevel gear one (45). The driving motor (47) is connected to the bottom plate (1) through a motor base. An opening and closing cylinder (48) is arranged on the outer side of one end of the drying cylinder (3) far from the connecting elbow (5) through a cylinder base. An opening and closing plate (49) for blocking the drying cylinder (3) is arranged at the telescopic end on the upper side of the opening and closing cylinder (48). A material receiving box (410) is arranged at the upper end of the bottom plate (1) and below the opening and closing plate (49).

7. A rapeseed oil production and preparation device according to claim 1, characterized in that: The described support assembly (2) includes a support collar (20), support side plates (21), support legs (22), and strengthening blocks (23). The support collar (20) is arranged on the outer side surface of the drying cylinder (3). The support side plates (21) are arranged at the lower end of the connecting elbow (5). Support legs (22) are symmetrically arranged on both the support collar (20) and the lower end of the connecting elbow (5). A T-shaped strengthening block (23) is arranged between the front and rear corresponding support legs (22).

8. A rapeseed oil production method, comprising a rapeseed oil production and preparation device as described in any one of claims 1-7, characterized in that, The production method includes the following steps: S1: Start the stirring mechanism (4) so that the stirring mechanism (4) can drive the magnetic separation mechanism (7) and the screening mechanism (8) to operate. Then add rapeseeds to the upper end of the feeding unit (87), so that the rapeseeds are preliminarily screened by the feeding unit (87). After that, the rapeseeds fall downward through the feeding unit (87) and drop onto the upper end of the arc plate (84). During this process, the air separation and discharging unit (88) can perform air separation on the rapeseeds, so that the lighter impurities can drop into the material receiving assembly (89). S2: After the rapeseeds fall on the upper end of the arc-shaped plate (84), they will be subjected to jitter-type multiple screening driven by the jitter unit (86). During this process, the air separation and discharging unit (88) can also play the role of air separating the rapeseeds. After that, the rapeseeds will pass through the arc-shaped plate (84) and then pass downward through the magnetic separation mechanism (7). At this time, the magnetic separation mechanism (7) can perform magnetic separation on the rapeseeds. The rapeseeds after magnetic separation can pass through the connecting elbow (5) and enter the drying cylinder (3); S3: The stirring mechanism (4) can drive the rapeseeds located in the drying cylinder (3) to be dried and stirred, so that the rapeseeds can be evenly dried. Finally, the stirring mechanism (4) can drive the rapeseeds after screening, air separation, magnetic separation and drying to fall outward into the receiving box (410). After that, the rapeseeds can be processed by the oil pressing equipment to complete the preparation of rapeseed oil.

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