Dryer for pretreatment of refined rice bran oil

Abstract

The invention discloses a drying machine for pretreatment of refined rice bran oil, and relates to the technical field of rice bran drying, the drying machine comprises a drying tank, the two ends of the drying tank are fixedly connected with protective shells, a first driven gear is arranged in the drying tank, an elastic frame is fixedly connected to the dead center of the upper end face of the first driven gear, and a main body rod is arranged in the elastic frame; the main body rod penetrates through the first driven gear, the outer wall of the main body rod is fixedly connected with a spiral discharging table, a guide groove is formed in the spiral discharging table, the dryer continuously supplies air to increase the temperature in the drying tank, and the spiral discharging table is made of a copper material (the heat conductivity coefficient of copper is far higher than that of common metal such as steel and aluminum); heat in the box can be quickly absorbed and transferred to lower-layer rice bran attached to the guide groove, the problem that heat is wasted when the upper layer is dried and the lower layer is moist in traditional drying is solved, synchronous drying of the inside and the outside of the rice bran is achieved, and the overall drying time is greatly shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rice bran drying, and particularly relates to a dryer for pretreatment of refined rice bran oil. BACKGROUND

[0002] In a rice bran oil refining process, the core goal of the pretreatment stage is to remove excess moisture, impurities and part of heat-sensitive substances in the rice bran, so as to lay a foundation for subsequent pressing, leaching and refining processes. The dryer, as a key equipment in the pretreatment link, directly affects the processing characteristics, oil yield and final oil quality of the rice bran.

[0003] A rice bran drying device for rice bran oil production is disclosed in Chinese Patent No. CN222544322U, which comprises a mounting plate, a motor mounted on the back of the mounting plate, a drive rod fixedly connected to the drive end of the motor, a conveying roller fixedly connected to the surface of the drive rod, a material conveying belt drivingly connected to the surface of the conveying roller, two side baffles fixedly connected to the top of the mounting plate, an inverted V-shaped baffle fixedly connected to the side baffles, material collecting baffles fixedly connected to the two sides of the inverted V-shaped baffle, a material collecting groove formed in the material collecting baffles, material collecting guide grooves fixedly connected to the front and back of the mounting plate, collecting bins fixedly connected to the front and back of the mounting plate, a partition plate slidingly connected to the inside of the collecting bin, and a handle fixedly connected to the partition plate. The rice bran oil production rice bran drying device has the effects of improving the quality of rice bran oil and improving the quality of rice bran oil.

[0004] The above-mentioned invention has the following problems: Although the above-mentioned device can dry the rice bran, the rice bran contains 15%-22% oil and heat-sensitive components such as vitamin E and oryzanol. During drying, if the temperature exceeds 60℃ or is locally overheated, high temperature will accelerate the reaction of oil and oxygen, cause oxidation and rancidity, produce a foul smell and reduce the quality of oil; at the same time, the heat-sensitive components are destroyed, resulting in loss of nutrients. In addition, high temperature causes the oil in the rice bran to melt and stick to the particles to form clumps, which block the channels of subsequent oil pressing or leaching equipment, reducing the extraction efficiency. Therefore, the present application provides a dryer for pretreatment of refined rice bran oil to solve the above-mentioned problems. SUMMARY

[0005] The present application aims to provide a dryer for pretreatment of refined rice bran oil to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The utility model provides a kind of dryer for refining rice bran oil pretreatment, including drying tank, for integrating various components and drying rice bran;Transmission mechanism is located at the both sides of drying tank, the transmission mechanism includes protective shell and first driven gear, the both ends of the drying tank are fixedly connected with protective shell, first driven gear is equipped in the drying tank, transmission mechanism is used to drive each mechanism operation;Discharging mechanism is located above first driven gear, the discharging mechanism includes main rod, spiral discharging table, guide chute and elastic frame, the upper end surface central position of first driven gear is fixedly connected with elastic frame, main rod is equipped in elastic frame, and main rod penetrates first driven gear, main rod outer wall is fixedly connected with spiral discharging table, guide chute is opened in spiral discharging table, and the discharging mechanism is used to extend the travel of rice bran and increase the drying time of rice bran;Multiple heating devices are located at the inside bottom end of drying tank, for drying rice bran.

[0007] As a further aspect of the present application: the outer wall of the main rod located in the elastic frame is fixedly connected with a sleeve ring, a plurality of return springs are fixedly connected between the sleeve ring and the inner wall of the elastic frame, and the plurality of return springs are arranged at equal intervals. The main rod penetrates the drying tank, and the distal end of the main rod is provided with a discharge valve. The outer wall of the main rod is provided with a feeding slot in the region located at the distal end of the spiral discharging table.

[0008] As a further aspect of the present application: a servo motor is fixedly connected to the inside bottom end of one of the protective shells. The power output end of the servo motor is fixedly connected with a driving gear, and the driving gear is engaged with the first driven gear. The end of the first driven gear away from the driving gear is rotatably connected with a second driven gear, and the second driven gear is engaged with the first driven gear. The second driven gear is rotatably connected with the inside bottom end of the protective shell. The upper end surfaces of the driving gear and the second driven gear are fixedly connected with transmission rods. The top ends of the transmission rods are fixedly connected with first bevel gears. The ends of the first bevel gears close to the drying tank are rotatably connected with second bevel gears. The first bevel gears are perpendicularly arranged with respect to the corresponding second bevel gears. The first bevel gears are engaged with the corresponding second bevel gears. The second driven gear is rotatably connected with the inside bottom end of the protective shell. A plurality of ventilation holes are formed in the upper end of the first driven gear.

[0009] As a further aspect of the present application: first scattering mechanisms are provided at the upper end of the second bevel gear and in the drying tank. A feeding hopper is fixedly connected through and penetrates the central position of the top end of the drying tank. A discharging frame is fixedly connected at the position corresponding to the feeding hopper at the top end inside the drying tank. The first scattering mechanisms are used to scatter the clumps existing inside the rice bran when the rice bran enters the drying tank.

[0010] As a further scheme of the present application: the second bevel gear is fixedly connected with linkage rods near one end of the drying tank, and the linkage rods penetrate through the drying tank, and the other ends of the linkage rods are fixedly connected with cams, the inner walls of the left and right ends of the discharging frame are fixedly connected with fixed plates, the upper end faces of the fixed plates are fixedly connected with two groups of damping springs, the other ends of the two groups of damping springs are fixedly connected with reciprocating plates, the outer walls of the reciprocating plates are fixedly connected with multiple groups of scattering rods, the scattering rods on the upper ends of the two groups of reciprocating plates are staggered, and the cam blocks of the cams intermittently contact the reciprocating plates when the cams rotate through the transmission mechanism.

[0011] As a further scheme of the present application: the upper end face of the main rod is provided with a second scattering mechanism, the second scattering mechanism is used for secondarily scattering the rice bran that passes through the first scattering mechanism again, and drives the main rod and various parts on the upper end to move up and down reciprocatingly, the upper end face of the main rod is fixedly connected with a connecting rod, the top end of the connecting rod is fixedly connected with a scatterer, the scatterer is located directly below the discharging frame, a connecting seat is sleeved on the outer wall of the connecting rod, L-shaped rods are fixedly connected between the connecting seat and adjacent reciprocating plates, two groups of limiting sleeves are fixedly connected with the outer wall of the connecting rod, and the two groups of limiting sleeves are located at the upper and lower ends of the connecting seat respectively.

[0012] As a further scheme of the present application: an external pipe is externally connected to the outer wall of one end of the drying tank, the external pipe can be externally connected to an exhaust fan, is used for extracting moisture in the drying tank, and the bottom end of the drying tank is fixedly connected with a support frame.

[0013] Compared with the prior art, the present application has the following beneficial effects: 1. Because the discharging mechanism is arranged, the heating device continuously blows air to increase the air temperature in the drying tank, and the spiral discharging table is made of copper (the thermal conductivity of copper is much higher than that of steel, aluminum and other common metals), so that the heat in the box can be quickly absorbed and transmitted to the lower layer of rice bran that is attached to the guide chute, the problem of heat waste caused by the upper layer being dry and the lower layer being wet in traditional drying is avoided, synchronous drying of the inside and outside of the rice bran is realized, and the overall drying time is greatly shortened. The first driven gear drives the main rod and the spiral discharging table to rotate counterclockwise, the inertia is used to slow down the downward movement of the rice bran along the guide chute, the residence time of the rice bran in the drying tank is longer, the contact with hot air and heat-conducting copper table is more sufficient, the water can be more completely evaporated, the problem of water residue caused by short-time drying is avoided, and the drying quality is improved.

[0014] 2. Because the first scattering mechanism is arranged, the two groups of cams drive the reciprocating plates and the scattering rods to move indirectly and reciprocatingly and staggeredly, the scattering rods can apply force from different directions to break the cohesive force in the clumps and disperse them into finer and more uniform particles, and the clumped rice bran is ensured to be fully scattered. After the rice bran enters from the feed hopper, it is easy to form a columnar concentration falling trend due to gravity, causing local overload of the subsequent spiral feeding table. The reciprocating motion of the dispersing rod can disturb this inertia, and through continuous up and down disturbance, the rice bran is dispersed to all directions, and then falls along the structure, which can avoid local over-thick rice bran in the spiral feeding table, and ensure that each layer of rice bran can fully contact with hot air and copper guide chute.

[0015] 3. Due to the second dispersing mechanism, the disperser adopts a cutting blade design, which can further refine the small rice bran clumps left after the first dispersing mechanism to a more uniform particle state. Compared with a single dispersing link, this two-stage processing mode of rough breaking + fine breaking can completely eliminate the clumping risk and lay a foundation for uniform heating in the subsequent drying; The up and down reciprocating movement of the main rod drives the disperser to sway synchronously, so that the movement trajectory of the blade is expanded from simple circular rotation to circular + axial composite path, which can cover more space area, avoid the formation of dispersing blind area due to the concentration of rice bran in a specific area due to gravity, and ensure that all materials can contact with the cutting blade, further improving the thoroughness of dispersing; The vibration force generated by the up and down movement of the spiral feeding table has different effects on the dried (low moisture, low viscosity) and undried (high moisture, high viscosity) rice bran. The dried rice bran is loose, and the vibration can quickly break the slight adhesion and accelerate its downward discharge, avoiding occupying the drying space. The undried rice bran is sticky, and the vibration cannot change its movement state, so it is forced to stay in the guide chute for a longer time. Only through the difference in physical properties can the materials be treated differently, which ensures that the dried materials are discharged in time and provides more drying time for undried materials. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a dryer for refining rice bran oil pretreatment.

[0017] Figure 2 It is a structural schematic diagram of the inside of the drying tank in a dryer for refining rice bran oil pretreatment.

[0018] Figure 3 It is a structural schematic diagram of a transmission mechanism in a dryer for refining rice bran oil pretreatment.

[0019] Figure 4 It is a structural schematic diagram of a first dispersing mechanism in a dryer for refining rice bran oil pretreatment.

[0020] Figure 5 It is a structural schematic diagram of a main rod in a dryer for refining rice bran oil pretreatment.

[0021] Figure 6It is a structural schematic view of a second scattering mechanism in a drying machine for refining rice bran oil pretreatment.

[0022] Figure 7 It is a structural schematic view of the inside of a main rod in a drying machine for refining rice bran oil pretreatment.

[0023] Figure 8 It is Figure 7 An enlarged structural schematic view at A in the middle.

[0024] In the figure: 1, drying tank; 2, support frame; 3, feeding hopper; 4, external pipe; 5, transmission mechanism; 501, protective shell; 502, servo motor; 503, driving gear; 504, first driven gear; 505, ventilation hole; 506, transmission rod; 507, first bevel gear; 508, second bevel gear; 509, second driven gear; 6, first scattering mechanism; 601, linkage rod; 602, cam; 603, discharging frame; 604, fixed plate; 605, damping spring; 606, reciprocating plate; 607, scattering rod; 7, discharging mechanism; 701, main rod; 702, spiral discharging table; 703, guide chute; 704, elastic frame; 705, collar; 706, return spring; 707, feeding chute; 708, discharging valve; 8, second scattering mechanism; 801, connecting rod; 802, limiting sleeve; 803, scatterer; 804, connecting seat; 805, L-shaped rod; 9, heating device. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Reference Figures 1-8The utility model provides a kind of dryer for refining rice bran oil pretreatment, including drying tank 1, for integrating various components and drying rice bran;Transmission mechanism 5 is located at the both sides of drying tank 1, the transmission mechanism 5 includes protective shell 501 and first driven gear 504, the both ends of the drying tank 1 are fixedly connected with protective shell 501, and first driven gear 504 is equipped in the drying tank 1, and transmission mechanism 5 is used to drive each mechanism to operate;Discharging mechanism 7 is located above first driven gear 504, and the discharging mechanism 7 includes main rod 701, spiral discharging table 702, guide chute 703 and elastic frame 704, the upper end surface central position of first driven gear 504 is fixedly connected with elastic frame 704, main rod 701 is equipped in elastic frame 704, and main rod 701 penetrates first driven gear 504, and the outer wall of main rod 701 is fixedly connected with spiral discharging table 702, and guide chute 703 is opened in spiral discharging table 702, and the discharging mechanism 7 is used to extend the travel of rice bran and increase the drying time of rice bran;Multiple heating devices 9 are located at the inside bottom end of drying tank 1, for drying rice bran, and the outer wall of one end of the drying tank 1 is circumscribed with external pipe 4, and external pipe 4 can be externally connected with air extractor, for extracting the moisture in the inside of drying tank 1, and the bottom end of the drying tank 1 is fixedly connected with support frame 2, the outer wall of main rod 701 located in the elastic frame 704 is fixedly connected with sleeve ring 705, multiple reset springs 706 are fixedly connected between sleeve ring 705 and the inner wall of elastic frame 704, and multiple reset springs 706 are arranged at equal intervals, main rod 701 penetrates drying tank 1, and the end of main rod 701 is equipped with discharge valve 708, and the outer wall of main rod 701 is opened with feeding slot 707 in the region located at the end of spiral discharging table 702; After rice bran enters drying tank 1 through feeding hopper 3, after being treated by first scattering mechanism 6 and second scattering mechanism 8, it falls into guide chute 703 in spiral discharging table 702 outside main rod 701, and continuously moves downward according to the spiral shape of spiral discharging table 702, cooperates with the rotation and vibration of subsequent spiral discharging table 702, and can assist the drying of rice bran in guide chute 703; Start heating device 9 in drying tank 1, heating device 9 increases the temperature in the inside of drying tank 1, and continuously sends air, and the rice bran on the surface of guide chute 703 is dried, and the temperature of spiral discharging table 702 is increased, and the rice bran adhered to guide chute 703 is quickly dried, so as to prevent the poor drying effect of rice bran in lower layer; When moving to the bottom of spiral discharging table 702, it enters the inside of main rod through feeding slot 707 opened in the outer wall of main rod 701, and is discharged from drying tank 1 through discharge valve 708 equipped at the inside bottom end of main rod 701; Support frame 2 of the outer wall of drying tank 1 lifts drying tank 1, and staff can place a material collecting container directly below discharge valve 708; The outer connecting pipe 4 of the outer wall of the drying tank 1 can be connected to an air extractor to extract the moisture and dust from the top end of the drying tank 1. It should be noted that the spiral feeding platform 702 is made of copper and has good heat conduction effect. It should be noted that the spiral feeding platform 702 has a large diameter, which can ensure that the rice bran entering the drying tank 1 can fall into the guide groove 703 of the spiral feeding platform 702.

[0027] With reference to Figures 1-3 One end of the protective shell 501 is fixedly connected with a servo motor 502 at the inner bottom end, the power output end of the servo motor 502 is fixedly connected with a driving gear 503, the driving gear 503 is engaged with a first driven gear 504, one end of the first driven gear 504 away from the driving gear 503 is rotatably connected with a second driven gear 509, the second driven gear 509 is engaged with the first driven gear 504, and the second driven gear 509 is rotatably connected with the inner bottom end of the protective shell 501. The upper end faces of the driving gear 503 and the second driven gear 509 are both fixedly connected with a transmission rod 506, the top ends of the transmission rods 506 are both fixedly connected with a first bevel gear 507, one end of the first bevel gear 507 close to the drying tank 1 is rotatably connected with a second bevel gear 508, the first bevel gear 507 is vertically arranged relative to the corresponding second bevel gear 508, the first bevel gear 507 is engaged with the corresponding second bevel gear 508, and the second driven gear 509 is rotatably connected with the inner bottom end of the protective shell 501. A plurality of ventilation holes 505 are formed in the upper end of the first driven gear 504. The servo motor 502 is started, the servo motor 502 drives the driving gear 503 to rotate, the driving gear 503 drives the first driven gear 504 to rotate, the first driven gear 504 drives the second driven gear 509 at the other end to rotate, so that the driving gear 503 and the driven gear are both rotated, both drive the transmission rod 506 at the upper end, the transmission rod 506 drives the first bevel gear 507 to rotate, and the first bevel gear 507 drives the second bevel gear 508 engaged therewith to rotate. When the first driven gear 504 rotates, the elastic frame 704 at the upper end and the main rod 701 are synchronously rotated counterclockwise, so that the spiral feeding platform 702 of the outer wall of the main rod 701 is synchronously rotated counterclockwise, that is, reversed, which produces a certain inertia, slows down the downward speed of the rice bran in the spiral feeding platform 702, increases the drying time of the rice bran in the drying tank 1, and ensures the drying of the rice bran.

[0028] In the process of transporting the rice bran from the feeding funnel 3 to the drying tank 1, uneven feeding may occur due to the small particle size of the rice bran and the large humidity influence on the flowability, and local accumulation may occur at the feeding outlet of the funnel, causing the rice bran to fall intermittently in a shock mode when entering the drying tank 1, resulting in excessive feeding in some areas and insufficient feeding in some areas, unbalanced distribution of materials in the drying tank 1, affecting the uniformity of subsequent drying, and the possibility of rice bran clumping, which is difficult to be effectively dried after entering the drying tank 1, and may cause uneven moisture content of the dried material and block the internal passage of the drying tank 1; Referring to Figures 2-4 and Figure 6 , the upper end of the second bevel gear 508 and the drying tank 1 are each provided with a first scattering mechanism 6, the top center of the drying tank 1 is penetrated and fixedly connected with a feeding funnel 3, the top of the drying tank 1 is fixedly connected with a discharging frame 603 at a position corresponding to the feeding funnel 3, the first scattering mechanism 6 is used to scatter the clumps in the drying tank 1 when the rice bran enters the drying tank 1, one end of the second bevel gear 508 near the drying tank 1 is fixedly connected with a linkage rod 601, the linkage rod 601 penetrates the drying tank 1, the other end of the linkage rod 601 is fixedly connected with a cam 602, the inner walls of the left and right ends of the discharging frame 603 are fixedly connected with a fixed plate 604, the upper end surface of the fixed plate 604 is fixedly connected with two groups of damping springs 605, the other ends of the two groups of damping springs 605 are fixedly connected with a reciprocating plate 606, the outer wall of the reciprocating plate 606 is fixedly connected with a plurality of scattering rods 607, the scattering rods 607 on the upper ends of the two groups of reciprocating plates 606 are arranged alternately, and the cam 602 intermittently contacts the reciprocating plate 606 when the cam 602 rotates through the transmission mechanism 5; The two groups of second bevel gears 508 rotate to drive the linkage rod 601 and the cam 602 at the upper end of the second bevel gear 508 to rotate, the cam 602 indirectly contacts the corresponding reciprocating plate 606 at the bottom when performing circular motion, the two groups of reciprocating plates 606 drive the scattering rods 607 at the upper ends to indirectly and alternately move reciprocally, so as to preliminarily scatter the clumped rice bran entering through the feeding funnel 3 and the discharging frame 603; It should be noted that the reciprocating plate 606 is extruded by the cam 602 and moves downward, extruding the damping spring 605 between the reciprocating plate 606 and the fixed plate 604 and storing energy in the damping spring 605, and when the extrusion of the cam 602 is lost, the damping spring 605 at the bottom of the reciprocating plate 606 resets according to its own performance, thereby driving the reciprocating plate 606 to reset, so as to realize the up-and-down reciprocating motion of the reciprocating plate 606 and the scattering rod 607; It needs to be added that the first dispersing mechanism 6 not only disperses the rice bran clumps, but also through the up-down reciprocating movement of the first dispersing mechanism 6, when moving up, it can slightly lift the rice bran, offset part of the gravity, slow down the falling trend; when moving down, it can release smoothly, avoid the sudden drop of rice bran due to gravity, at the same time, the movement trajectory can also break the concentrated falling trend of rice bran, drive it to be evenly distributed along the structure, so as to realize the deceleration and uniform falling on the spiral feeding table 702.

[0029] During the rice bran drying process, there may be a problem of local overheating. If the rice bran particles stay in this place for too long, local carbonization, destruction of nutritional components (such as vitamins and unsaturated fatty acids), and even the generation of burnt smell may occur, affecting product quality. At the same time, the local rice bran accumulation in the tank is too thick, and the hot air is difficult to penetrate, so the inner layer material dries slowly, and the outer layer is over-dried. On the other hand, the rice bran clumps will cause the internal water evaporation to be blocked, and there will be a significant drying difference between the dispersed particles, finally resulting in large fluctuations in the moisture content of the discharged rice bran, which cannot meet the unified quality standard. Referring to Figure 2 , 5 and Figure 6 , the upper end surface of the main rod 701 is provided with a second dispersing mechanism 8, which is used for dispersing the rice bran passing through the first dispersing mechanism 6 again, and driving the main rod 701 and each component at the upper end to move up and down reciprocally, the upper end surface of the main rod 701 is fixedly connected with a connecting rod 801, the top end of the connecting rod 801 is fixedly connected with a disperser 803, the disperser 803 is located directly below the discharging frame 603, the outer wall of the connecting rod 801 is sleeved with a connecting seat 804, the connecting seat 804 and the adjacent reciprocating plate 606 are fixedly connected with an L-shaped rod 805, the outer wall of the connecting rod 801 is fixedly connected with two sets of limiting sleeves 802, and the two sets of limiting sleeves 802 are located at the upper and lower ends of the connecting seat 804 respectively. When the first driven gear 504 rotates, it drives the elastic frame 704 to rotate, the elastic frame 704 drives the main rod 701 to rotate synchronously through the reset spring 706 arranged inside, the main rod 701 drives the connecting rod 801 and the disperser 803 at the top end to rotate, and the disperser 803 disperses the rice bran passing through the first dispersing mechanism 6 again. It needs to be added that the blades of the disperser 803 are cutting blades, which can thoroughly disperse the small clumps of rice bran dispersed by the first dispersing mechanism 6. When the reciprocating plate 606 reciprocates, it will drive the L-shaped rod 805 connected at the bottom to move up and down synchronously, so that the connecting seat 804 at the other end of the L-shaped rod 805 moves synchronously, and when moving up and down, it constantly collides with the limiting sleeves 802 at the upper and lower ends, which can reciprocally drive the main rod 701 and each component at the upper end to move up and down reciprocally, i.e. to move up and down. When the main rod 701 swings up and down, the reset spring 706, the collar 705 and the elastic frame 704 outside limit; When the disperser 803 at the upper end of the main rod 701 swings up and down, the working range of the disperser 803 can be increased, and the dispersing effect of the disperser 803 can be increased. When the spiral unloading table 702 on the outer wall of the main rod 701 swings up and down, a vibration force is generated on the rice bran in the guide chute 703. For the dried rice bran, the particles are loose and have weak adhesion. The vibration can quickly break the slight adhesion between the particles, accelerate the sliding of the rice bran along the guide chute 703, and avoid the occupation of space. The undried rice bran has high water content and strong adhesion between particles. The vibration cannot significantly change the sliding state, and still moves downward at a normal speed. This differentiated sliding allows the undried rice bran to stay in the guide chute 703 for a longer time, which can be exposed to the drying environment more: on the one hand, it can contact the bottom wall of the spiral unloading table 702 to absorb heat, and on the other hand, it can fully contact the hot air in the drying tank 1 to further evaporate water, and finally realize uniform drying of all rice bran, avoiding incomplete drying of some rice bran due to too fast sliding.

[0030] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the scope of the present application should be defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A dryer for pretreatment of refined rice bran oil, characterized in that, include: Drying tank (1) is used to integrate various components and dry rice bran; The transmission mechanism (5) is located on both sides of the drying tank (1). The transmission mechanism (5) includes a protective shell (501) and a first driven gear (504). The protective shell (501) is fixedly connected to both ends of the drying tank (1). The first driven gear (504) is provided inside the drying tank (1). The transmission mechanism (5) is used to drive the operation of each mechanism. The feeding mechanism (7) is located above the first driven gear (504). The feeding mechanism (7) includes a main rod (701), a spiral feeding platform (702), a guide groove (703), and an elastic frame (704). The elastic frame (704) is fixedly connected to the center of the upper end face of the first driven gear (504). The main rod (701) is provided inside the elastic frame (704), and the main rod (701) passes through the first driven gear (504). The spiral feeding platform (702) is fixedly connected to the outer wall of the main rod (701). The guide groove (703) is opened inside the spiral feeding platform (702). The feeding mechanism (7) is used to extend the rice bran travel and increase the drying time of the rice bran. Multiple heating devices (9) are located at the bottom of the drying tank (1) for drying rice bran.

2. A dryer for pretreatment of refined rice bran oil according to claim 1, characterized in that, The feeding mechanism (7) also includes a collar (705), a return spring (706), a feed groove (707), and a discharge valve (708). The outer wall of the main rod (701) located in the elastic frame (704) is fixedly connected to the collar (705). Multiple sets of return springs (706) are fixedly connected between the collar (705) and the inner wall of the elastic frame (704), and the multiple sets of return springs (706) are arranged at equal intervals. The main rod (701) passes through the drying tank (1). The discharge valve (708) is provided at the end of the main rod (701). The feed groove (707) is opened in the area of ​​the outer wall of the main rod (701) located at the end of the spiral feeding platform (702).

3. A dryer for pretreatment of refined rice bran oil according to claim 1, characterized in that, The transmission mechanism (5) further includes a servo motor (502), a drive gear (503), a ventilation hole (505), a transmission rod (506), a first bevel gear (507), a second bevel gear (508), and a second driven gear (509). The servo motor (502) is fixedly connected to the bottom of the inner part of the protective shell (501) at one end. The drive gear (503) is fixedly connected to the power output end of the servo motor (502). The drive gear (503) meshes with the first driven gear (504). The end of the first driven gear (504) away from the drive gear (503) is rotatably connected to the second driven gear (509). The second driven gear (509) meshes with the first driven gear (504). The second driven gear (509) is rotatably connected to the bottom of the inner part of the protective shell (501). Several sets of ventilation holes (505) are opened at the upper end of the first driven gear (504).

4. A dryer for pretreatment of refined rice bran oil according to claim 3, characterized in that, The upper surfaces of the driving gear (503) and the second driven gear (509) are both fixedly connected to a transmission rod (506). The top of the transmission rod (506) is fixedly connected to a first bevel gear (507). The end of the first bevel gear (507) near the drying tank (1) is rotatably connected to a second bevel gear (508). The first bevel gear (507) is perpendicular to the corresponding second bevel gear (508), and the first bevel gear (507) meshes with the corresponding second bevel gear (508).

5. A dryer for pretreatment of refined rice bran oil according to claim 4, characterized in that, The upper end of the second bevel gear (508) and the inside of the drying tank (1) are provided with a first dispersing mechanism (6). The first dispersing mechanism (6) includes a linkage rod (601), a cam (602), a feeding frame (603), a fixing plate (604), a damping spring (605), a reciprocating plate (606), and a dispersing rod (607). A feeding funnel (3) is connected through and fixedly connected to the center of the top of the drying tank (1). A feeding frame (603) is fixedly connected to the top of the drying tank (1) at a position corresponding to the feeding funnel (3). The first dispersing mechanism (6) is used to disperse the clumps inside the rice bran when it enters the drying tank (1).

6. A dryer for pretreatment of refined rice bran oil according to claim 5, characterized in that, The second bevel gear (508) is fixedly connected to a linkage rod (601) at one end near the drying tank (1), and the linkage rod (601) passes through the drying tank (1). The other end of the linkage rod (601) is fixedly connected to a cam (602).

7. A dryer for pretreatment of refined rice bran oil according to claim 5, characterized in that, The inner walls of both ends of the feeding frame (603) are fixedly connected to a fixing plate (604). The upper surface of the fixing plate (604) is fixedly connected to two sets of damping springs (605). The other end of the two sets of damping springs (605) is fixedly connected to a reciprocating plate (606). The outer wall of the reciprocating plate (606) is fixedly connected to multiple sets of dispersing rods (607). The dispersing rods (607) at the upper end of the two sets of reciprocating plates (606) are staggered. When the cam (602) rotates through the transmission mechanism (5), the cam (602) will intermittently contact the reciprocating plate (606).

8. A dryer for pretreatment of refined rice bran oil according to claim 1, characterized in that, The upper end face of the main rod (701) is provided with a second dispersing mechanism (8). The second dispersing mechanism (8) is used to disperse the rice bran that has passed through the first dispersing mechanism (6) a second time, and drive the main rod (701) and the various components at the upper end to move up and down repeatedly.

9. A dryer for pretreatment of refined rice bran oil according to claim 8, characterized in that, The second dispersing mechanism (8) includes a connecting rod (801), a limiting sleeve (802), a disperser (803), a connecting seat (804), and an L-shaped rod (805). The connecting rod (801) is fixedly connected to the upper end face of the main rod (701). The disperser (803) is fixedly connected to the top end of the connecting rod (801). The disperser (803) is located directly below the feeding frame (603). The connecting seat (804) is sleeved on the outer wall of the connecting rod (801). The L-shaped rod (805) is fixedly connected between the connecting seat (804) and the adjacent reciprocating plate (606). Two sets of limiting sleeves (802) are fixedly connected to the outer wall of the connecting rod (801). The two sets of limiting sleeves (802) are located at the upper and lower ends of the connecting seat (804), respectively.

10. A dryer for pretreatment of refined rice bran oil according to claim 1, characterized in that, The drying tank (1) has an external pipe (4) connected to the outer wall at one end. The external pipe (4) can be connected to an external exhaust fan to extract moisture from the inside of the drying tank (1). The bottom of the drying tank (1) is fixedly connected to a support frame (2).

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