Vegetable oil byproduct fermentation equipment

Abstract

The invention relates to the technical field of fermentation equipment, in particular to vegetable oil by-product fermentation equipment which comprises a tank body, a rotary support capable of periodically rotating by 90 degrees is mounted on the tank body, a rotatable gear sleeve is mounted on the rotary support, a first tooth-missing ring and a second tooth-missing ring are mounted on the gear sleeve, and an eccentric wheel is mounted at the bottom of the gear sleeve. Two stirring systems are installed on the rotating support, the stirring systems are rotationally connected to a transverse shaft on the rotating support, the transverse shaft is in transmission connection with the first tooth-missing ring and the second tooth-missing ring through a multi-tooth transmission module, and a reciprocating frame capable of reciprocating left and right is slidably connected to the rotating support; the two reciprocating frames are each provided with a set of first reset springs limited through the rotary support. The invention has the following beneficial effects: through multi-dimensional innovation of intermittent rotation, double-speed stirring, high-frequency vibration and intelligent control, the problems of non-uniform mixing, single rotating speed, material adhesion and extensive control of traditional fermentation equipment are systematically solved.

Description

Technical Field

[0001] The invention relates to the technical field of fermentation equipment, in particular to a plant oil byproduct fermentation equipment. Background Art

[0002] In the field of microbiology and enzyme engineering, the fermentation conversion of vegetable oil by-products (such as cake and oil residue) requires high-efficiency bioreactors, and fermentation treatment of vegetable oil by-products such as cake and oil residue is required.

[0003] In the prior art, the patent document with publication number CN119462234A discloses a fermentation device and method for cake organic fertilizer. The above device integrates the transmission component, ventilation component and stirring component, so that while it can ventilate efficiently, the ventilation component and stirring component can not only stir and mix the cake during fermentation to increase the contact area of air, but also the stirring component can adjust the stirring component up and down based on the conditions of the ventilation process, so that the air is transferred upward to form an exhaust passage that is continuously reorganized, so that the cake is in full contact with air, thereby improving the quality of aerobic fermentation. However, the above device has the following technical problems when used:

[0004] The mixing mode is single, the mixing uniformity is insufficient, the stirring speed cannot be switched, which affects the microbial activity and fermentation efficiency. The lack of vibration function leads to prominent problems of material sticking and crusting.

[0005] Based on this, the present invention provides a plant oil by-product fermentation device to solve the problems raised in the above background technology. Summary of the Invention

[0006] In response to the technical problems existing in the prior art, the present invention provides a vegetable oil by-product fermentation equipment to solve the problems of the existing device with a single stirring mode, insufficient mixing uniformity, unswitchable stirring speed, affecting microbial activity and fermentation efficiency, lack of vibration function, and prominent problems of material sticking and crusting.

[0007] The present invention solves the above-mentioned technical problem with the following technical solution: a plant oil by-product fermentation device, comprising a tank body, a rotating bracket that can periodically rotate 90 degrees is installed on the tank body, a rotatable gear sleeve is installed on the rotating bracket, a first tooth-missing ring and a second tooth-missing ring are installed on the gear sleeve, an eccentric wheel is installed at the bottom of the gear sleeve, and two stirring systems are installed on the rotating bracket;

[0008] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The tooth on the attachment piece is meshed with tooth on upper sprocket.

[0009] Furthermore, a servo motor is fixedly installed on the top of the tank body and a coupling is rotatably installed, an incomplete gear is installed on the coupling, an intermittent shaft is fixedly installed on the rotating bracket, the gear sleeve is rotatably sleeved on the intermittent shaft, an intermittent gear is installed on the intermittent shaft, the incomplete gear is transmission-connected to the intermittent gear, the output shaft end of the servo motor is transmission-connected to the first synchronous belt, and the coupling and the gear sleeve are both transmission-connected to the first synchronous belt.

[0010] Furthermore, the two stirring systems are respectively arranged on the left and right sides of the intermittent shaft, and the radius of the incomplete gear is 3 to 6 times the radius of the intermittent gear.

[0011] Furthermore, the multi-tooth transmission module includes a left circular shaft and a right circular shaft rotatably connected to the rotating bracket, the left circular shaft is connected to the right circular shaft through a second synchronous belt, and a high-speed gear and a low-speed gear are respectively installed on the right circular shaft, the high-speed gear is adaptively connected to the second tooth-missing ring, and the low-speed gear is adaptively connected to the first tooth-missing ring, and the first bevel gear is installed on both the left circular shaft and the horizontal shaft, and the two first bevel gears are engaged with each other.

[0012] Furthermore, the first toothless ring and the second toothless ring are symmetrically arranged on the gear sleeve, and the first toothless ring and the second toothless ring have different heights in the vertical direction. The central angles corresponding to the first toothless ring and the second toothless ring are both 120°, the radius of the second toothless ring is 3 to 6 times the radius of the first toothless ring, the radius of the low-speed gear is 2 to 6 times the radius of the high-speed gear, and two symmetrically arranged transmission interruptions are provided on the gear sleeve corresponding to the position between the first toothless ring and the second toothless ring, and the central angle corresponding to each of the transmission interruptions is 60°.

[0013] Furthermore, a hollow shaft is rotatably mounted on the reciprocating frame, and a hollow groove with openings at both ends and slidingly connected to the transverse shaft is fixedly opened inside the hollow shaft. The cross-sections of the hollow groove and the hollow shaft are both regular hexagons, and the axis of the transverse shaft is perpendicular to the rotation axis of the rotating bracket. Second bevel gears are installed on the transverse shaft and the spline shaft, and the two second bevel gears are engaged with each other. A third synchronous belt is connected for transmission between the spline shaft and the reciprocating screw.

[0014] Furthermore, the top of the external rotating shaft is fixed with an inner square groove with a top opening and slidingly connected to the spline shaft. The cross-sections of the inner square groove and the spline shaft are both regular hexagons, and the axis of the external rotating shaft is parallel to the rotation axis of the rotating bracket.

[0015] Furthermore, a heating jacket is fixedly provided on the outside of the tank body, a pressure gauge, a pressure relief valve and a ventilation valve are respectively installed on the top of the tank body, a single-chip microcomputer is installed on the end face of the tank body, a temperature probe and a pH probe are respectively installed on the bottom of the tank body, and the data ends of the pressure gauge, temperature probe and pH probe are all connected to the single-chip microcomputer data. A feed valve is installed on the upper part of the tank body, and a discharge valve is connected to the bottom of the tank body.

[0016] Furthermore, two symmetrically arranged guide grooves are fixedly provided inside the rotating bracket, and the two guide grooves are slidingly connected to the two reciprocating frames respectively. A roller is rotatably installed on each of the two reciprocating frames, and the outer contour of the roller is in rolling contact with the outer contour of the eccentric wheel.

[0017] The beneficial effects of the present invention are embodied in

[0018] 1. The present invention breaks through the limitation of single-direction stirring of existing equipment through the synergistic effect of the rotating bracket that rotates periodically 90 degrees and the dual stirring system. The rotating bracket rotates intermittently under the drive of the servo motor, and combines the two-way differentiated stirring of the spiral turning blades and multiple groups of stirring rods to form multi-angle turning and shearing effects. Compared with the vortex dead corners formed by traditional continuous rotation, this design can cover the entire area of the tank body, which is particularly suitable for layered material mixing of vegetable oil by-products, ensuring full contact between materials and microorganisms, and solving the core problems of insufficient mixing and low fermentation efficiency in the existing technology.

[0019] 2. The present invention realizes automatic switching of the horizontal axis speed between low-speed turning, high-speed stirring and short-term stop cycle. The low-speed mode provides gentle turning to avoid destroying the activity of microorganisms. The high-speed mode enhances shear force and accelerates material decomposition. The 60° transmission interruption part introduces a stop gap, which cooperates with the rotation and transposition of the rotating bracket to form a "dynamic and static alternating" fermentation environment. Compared with the microbial stress damage caused by a single speed in the existing technology, this solution can significantly improve the fermentation efficiency.

[0020] 3. The present invention superimposes high-frequency vertical vibration during the stirring process. The vibration frame is driven by the reciprocating screw in forward and reverse rotation, and cooperates with the reset spring to generate high-frequency impact force, which effectively peels off the materials attached to the spiral blades and the stirring rod, and destroys the crust layer on the bottom of the tank. Compared with the defect of traditional equipment relying on single mechanical stirring, the synergistic effect of "vibration stirring" in this solution reduces the viscosity of the material by 60%, significantly improving the mass transfer efficiency, and is particularly suitable for the continuous fermentation of high-viscosity vegetable oil by-products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a plant oil by-product fermentation device of the present invention;

[0022] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section structure;

[0023] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0024] Figure 4 For the present invention Figure 2 Schematic diagram of the local enlarged structure at B in the middle;

[0025] Figure 5 It is a structural schematic diagram of the incomplete gear and the low-speed gear of the present invention;

[0026] Figure 6 Schematic diagram of the structure of the first tooth-missing ring and the second tooth-missing ring of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the reciprocating frame and the vibrating frame of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the low-speed gear and reciprocating frame of the present invention;

[0029] Figure 9 It is a schematic structural diagram of the torsion spring and the reciprocating screw rod of the present invention.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1. Tank body; 2. Rotating bracket; 3. Gear sleeve; 4. Eccentric wheel; 5. First missing gear ring; 6. Second missing gear ring; 7. Horizontal axis; 8. Reciprocating frame; 9. First return spring; 10. Spline shaft; 11. Reciprocating screw; 12. Torsion spring; 13. Vibrating frame; 14. Second return spring; 15. External rotating shaft; 16. Spiral turning blade; 17. Stirring rod; 18. Servo motor; 19. Coupling; 20. Incomplete gear; 21. Intermittent shaft; 22. Intermittent gear; 23. Left circular shaft; 24. Right circular shaft; 25. High-speed gear; 26. Low-speed gear; 27. Hollow shaft; 28. Heating jacket; 29. Pressure gauge; 30. Pressure relief valve; 31. Ventilation valve; 32. Temperature probe; 33. pH probe; 34. Feed valve; 35. Discharge valve; 36. Roller; 37. Microcontroller. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] The present invention provides the following preferred embodiments

[0034] like Figure 1-9 As shown, a plant oil by-product fermentation device includes a tank body 1, a rotating bracket 2 that can rotate periodically 90 degrees is installed on the tank body 1, and a rotatable gear sleeve 3 is installed on the rotating bracket 2;

[0035] A servo motor 18 is fixedly mounted on the top of the tank body 1 and is rotatably mounted with a coupling 19, on which an incomplete gear 20 is mounted. An intermittent shaft 21 is fixedly mounted on the rotating bracket 2, and a gear sleeve 3 is rotatably sleeved on the intermittent shaft 21. An intermittent gear 22 is mounted on the intermittent shaft 21. The incomplete gear 20 is transmission-connected to the intermittent gear 22.

[0036] The radius of the incomplete gear 20 is 4 times the radius of the intermittent gear 22;

[0037] The output shaft end of the servo motor 18 is connected to the first synchronous belt, and the coupling 19 and the gear sleeve 3 are both connected to the first synchronous belt.

[0038] After the servo motor 18 is started, the incomplete gear 20 drives the intermittent gear 22 to rotate. When the teeth of the incomplete gear 20 mesh with the intermittent gear 22, the rotating bracket 2 starts to rotate. When the toothless part of the incomplete gear 20 rotates, the rotating bracket 2 stops. This design allows the fermentation material to form a periodic motion trajectory of "rotation-pause-rerotation" inside the tank body 1. Compared with traditional continuous rotation stirring, it can avoid the formation of vortex dead corners due to stirring of the material in a single direction. At the same time, with the differentiated action of the stirring system, multi-angle, intermittent turning and stirring are achieved, which significantly improves the uniformity of material mixing. It is especially suitable for the needs of "uniform contact of stratified materials with microorganisms" during the fermentation process of vegetable oil by-products such as oil residue and cake. It solves the technical problems of single stirring mode and insufficient mixing of existing equipment.

[0039] The first tooth-missing ring 5 and the second tooth-missing ring 6 are mounted on the gear sleeve 3;

[0040] An eccentric wheel 4 is installed at the bottom of the gear sleeve 3, and two stirring systems are installed on the rotating bracket 2. The two stirring systems are respectively arranged on the left and right sides of the intermittent shaft 21;

[0041] The stirring system rotates and is connected to the horizontal shaft 7 on the rotating bracket 2. The horizontal shaft 7 is connected to the first toothless ring 5 and the second toothless ring 6 through a multi-tooth transmission module.

[0042] The multi-tooth transmission module includes a left circular shaft 23 and a right circular shaft 24 rotatably connected to the rotating bracket 2. The left circular shaft 23 is connected to the right circular shaft 24 through a second synchronous belt. A high-speed gear 25 and a low-speed gear 26 are respectively installed on the right circular shaft 24. The high-speed gear 25 is adapted to be connected to the second toothless ring 6, and the low-speed gear 26 is adapted to be connected to the first toothless ring 5. First bevel gears are installed on both the left circular shaft 23 and the horizontal shaft 7, and the two first bevel gears are meshed with each other.

[0043] The first toothed ring 5 and the second toothed ring 6 are symmetrically arranged on the gear sleeve 3, and the first toothed ring 5 and the second toothed ring 6 have different heights in the vertical direction. The central angles of the first toothed ring 5 and the second toothed ring 6 are both 120°. The radius of the second toothed ring 6 is 5 times the radius of the first toothed ring 5. The radius of the low-speed gear 26 is 3.5 times the radius of the high-speed gear 25. Two symmetrically arranged transmission interruptions are provided on the gear sleeve 3 at positions corresponding to the positions between the first toothed ring 5 and the second toothed ring 6. The central angles of each transmission interruption are both 60°.

[0044] When the gear sleeve 3 rotates, the first toothed ring 5 and the second toothed ring 6 are respectively meshed with the low-speed gear 26 and the high-speed gear 25 in the multi-stage gear transmission mechanism. Through the transmission of the left circular shaft 23, the right circular shaft 24 and the first bevel gear, the horizontal shaft 7 obtains two different speeds. When the gear sleeve 3 drives the first toothed ring 5 to mesh with the low-speed gear 26, the horizontal shaft 7 rotates at a low speed, driving the stirring system to gently turn the material. When the second toothed ring 6 is meshed with the high-speed gear 25, the horizontal shaft 7 rotates at a high speed, driving the stirring system to stir quickly. The 60° transmission interruption between the two can cause the horizontal shaft 7 to temporarily stop rotating, and cooperate with the intermittent rotation of the rotating bracket 2 to form a cyclic working mode of "low-speed turning, high-speed stirring, pause and shifting". Compared with the defect of single-speed stirring of existing equipment, this solution can automatically switch the stirring speed to avoid the destruction of microbial activity by high-speed continuous stirring. At the same time, through intermittent transmission, the material is fully contacted with the fermentation agent during the "turning, shearing and static" process, thereby improving fermentation efficiency and product quality.

[0045] The rotating bracket 2 is slidably connected to a reciprocating bracket 8 that can move back and forth left and right;

[0046] The interior of the rotating bracket 2 is fixed with two symmetrically arranged guide grooves, and the two guide grooves are respectively slidably connected to the two reciprocating brackets 8;

[0047] A set of first return springs 9 limited by the rotating bracket 2 are installed on each of the two reciprocating frames 8. The reciprocating frames 8 are driven by the eccentric wheel 4. A roller 36 is rotatably installed on each of the two reciprocating frames 8. The outer contour of the roller 36 is in rolling contact with the outer contour of the eccentric wheel 4.

[0048] A spline shaft 10 and a reciprocating screw rod 11 are rotatably mounted on the reciprocating frame 8, and both the spline shaft 10 and the reciprocating screw rod 11 are driven by the horizontal shaft 7;

[0049] A hollow shaft 27 is rotatably mounted on the reciprocating frame 8. A hollow groove with openings at both ends and slidingly connected to the transverse shaft 7 is fixedly opened inside the hollow shaft 27. The cross sections of the hollow groove and the hollow shaft 27 are both regular hexagons. The axis of the transverse shaft 7 is perpendicular to the axis of rotation of the rotating bracket 2. Second bevel gears are mounted on the transverse shaft 7 and the spline shaft 10. The two second bevel gears are meshed with each other. A third synchronous belt is connected to the spline shaft 10 and the reciprocating screw 11.

[0050] A torsion spring 12 is fixedly provided at the rotating connection between the reciprocating screw 11 and the reciprocating frame 8, a vibration frame 13 that can be moved up and down is slidably installed on the reciprocating frame 8, the reciprocating screw 11 is transmission-connected to the vibration frame 13, a second return spring 14 is installed between the vibration frame 13 and the reciprocating frame 8, an external rotating shaft 15 driven by a spline shaft 10 is rotatably installed on the vibration frame 13, a spiral turning blade 16 is installed on the external rotating shaft 15 in one stirring system, and a plurality of groups of regularly distributed stirring rods 17 are installed on the external rotating shaft 15 in the other stirring system.

[0051] The top of the external rotating shaft 15 is fixed with an inner square groove with a top opening and slidingly connected to the spline shaft 10. The cross-sections of the inner square groove and the spline shaft 10 are both regular hexagons. The axis of the external rotating shaft 15 is parallel to the rotation axis of the rotating bracket 2.

[0052] When the reciprocating frame 8 moves, the horizontal shaft 7 drives the spline shaft 10 to rotate through the second bevel gear, and the spline shaft 10 then drives the reciprocating screw 11 to rotate through the third synchronous belt, so that the vibration frame 13 reciprocates up and down along the reciprocating screw 11. The second return spring 14 cooperates with the return torsion spring to realize the elastic vibration of the vibration frame 13;

[0053] When the reciprocating screw 11 rotates forward, the vibration frame 13 rises and compresses the second return spring 14. When the reciprocating screw 11 rotates reversely, the spring returns and pushes the vibration frame 13 down rapidly, forming high-frequency vibration. This vibration can cause the material attached to the spiral turning blade 16 and the stirring rod to fall off, preventing the material from sticking and clumping. At the same time, it impacts the material layer at the bottom of the tank body 1, destroying the surface crust of the material, such as the oil condensation layer formed during the fermentation process. Compared with the defect of traditional stirring equipment lacking vibration function, this solution significantly improves the mass transfer efficiency of vegetable oil by-products through the synergistic effect of "stirring and vibration", promotes sufficient contact between the fermentation liquid and the material particles, shortens the fermentation cycle, and is particularly suitable for complex fermentation systems containing solid particles.

[0054] At the same time, the forward and reverse rotation of the reciprocating screw 11 will drive the outer rotating shaft 15 to rotate forward and reverse, and then reciprocate to change the turning direction of the spiral turning blade 16 and the stirring direction of the stirring rod 17, thereby effectively improving the turning effect of the spiral turning blade 16 and the stirring effect of the stirring rod 17.

[0055] When the horizontal shaft 7 is driven by the first toothless ring 5 and the second toothless ring 6, the number of driven turns of the reciprocating screw 11 is different, which makes the vibration frame 13 have two vibration strokes during vibration. By switching between the two vibration strokes, the material shedding effect on the spiral turning blade 16 and the stirring rod is further improved;

[0056] A heating jacket 28 is fixedly provided on the outside of the tank body 1, a pressure gauge 29, a pressure relief valve 30 and a ventilation valve 31 are respectively installed on the top of the tank body 1, a single-chip microcomputer 37 is installed on the end face of the tank body 1, and a temperature probe 32 and a pH probe 33 are respectively installed on the bottom of the tank body 1. The data ends of the pressure gauge 29, the temperature probe 32 and the pH probe 33 are all data-connected to the single-chip microcomputer 37, a feed valve 34 is installed on the upper part of the tank body 1, and a discharge valve 35 is connected to the bottom of the tank body 1.

[0057] The heating jacket 28 uniformly heats the tank body 1, and the temperature probe 32, pH probe and pressure gauge 29 monitor the fermentation environment parameters in real time and transmit the data to the single chip microcomputer 37, which automatically adjusts the heating power, ventilation frequency and other parameters according to the preset program;

[0058] At the beginning of fermentation, the single chip microcomputer 37 controls the heating jacket 28 to raise the temperature to 30°C-40°C;

[0059] In the middle of fermentation, the ventilation valve 31 is automatically triggered to introduce oxygen or discharge nitrogen according to the change of pH value;

[0060] When the pressure exceeds the threshold, the pressure relief valve 30 automatically opens to vent air. This intelligent control system achieves closed-loop control of all parameters of the fermentation process. Compared with the defects of existing equipment that rely on manual monitoring, it can accurately maintain the optimal environmental conditions for microbial growth and avoid fermentation failures caused by temperature fluctuations, insufficient oxygen or excessive pressure. It is particularly suitable for the fermentation of environmentally sensitive vegetable oil byproducts, such as probiotic fermentation of oil residue to produce protein feed, significantly improving fermentation stability and product yield while reducing labor costs.

[0061] The specific method of use of the present invention is as follows:

[0062] After the servo motor 18 is started, the coupling 19 and the gear sleeve 3 are driven to rotate through the first synchronous belt. The incomplete gear 20 on the coupling 19 is engaged with the intermittent gear 22 on the intermittent shaft 21, driving the rotating bracket 2 to rotate periodically by 90 degrees. When the gear sleeve 3 rotates, the first and second symmetrically arranged missing gear rings 5 and 6 are respectively engaged with the low-speed gear 26 and the high-speed gear 25 in the multi-tooth transmission module. Through the left circular shaft 23, the right circular shaft 24 and the first bevel gear, the horizontal shaft 7 is rotated alternately at low and high speeds. The 60-degree transmission interruption between the two causes the horizontal shaft 7 to stop rotating briefly, forming a "low-speed turning and high-speed stirring pause" cycle;

[0063] At the same time, the eccentric wheel 4 at the bottom of the gear sleeve 3 drives the reciprocating frame 8 to move back and forth along the guide groove through the roller 36. The first return spring 9 assists in resetting. The transverse shaft 7 drives the spline shaft 10 to rotate through the second bevel gear of the hollow shaft 27. The spline shaft 10 drives the reciprocating screw 11 to rotate through the third synchronous belt, so that the vibration frame 13 reciprocates up and down along the reciprocating screw 11. The second return spring 14 cooperates with the torsion spring 12 to generate elastic vibration, and the reciprocating screw 11 drives the outer rotating shaft 15 and the spiral turning blade 16 and the stirring rod 17 to reciprocate and change direction in forward and reverse rotation.

[0064] The vibration frame 13 compresses the spring when it rises, and resets the spring when it falls to form high-frequency vibration, causing the material to fall off and impact the bottom material layer;

[0065] During the fermentation process, the heating jacket 28 evenly heats the tank body 1, and the temperature probe 32, pH probe 33 and pressure gauge 29 monitor the parameters in real time and transmit them to the single-chip microcomputer 37. The single-chip microcomputer 37 automatically adjusts the heating power, ventilation frequency, etc. The initial temperature is controlled at 30℃-40℃. In the middle period, the ventilation valve 31 is controlled to pass oxygen or nitrogen according to the pH value. When overpressure occurs, the pressure relief valve 30 exhausts air, realizing closed-loop control of all parameters of the fermentation environment.

[0066] In summary: The beneficial effects of the present invention are specifically embodied in

[0067] 1. The present invention breaks through the limitation of single-direction stirring of existing equipment through the synergistic effect of the rotating bracket that rotates periodically 90 degrees and the dual stirring system. The rotating bracket rotates intermittently under the drive of the servo motor, and combines the two-way differentiated stirring of the spiral turning blades and multiple groups of stirring rods to form multi-angle turning and shearing effects. Compared with the vortex dead corners formed by traditional continuous rotation, this design can cover the entire area of the tank body, which is particularly suitable for layered material mixing of vegetable oil by-products, ensuring full contact between materials and microorganisms, and solving the core problems of insufficient mixing and low fermentation efficiency in the existing technology.

[0068] 2. The present invention realizes automatic switching of the horizontal axis speed between low-speed turning, high-speed stirring and short-term stop cycle. The low-speed mode provides gentle turning to avoid destroying the activity of microorganisms. The high-speed mode enhances shear force and accelerates material decomposition. The 60° transmission interruption part introduces a stop gap, which cooperates with the rotation and transposition of the rotating bracket to form a "dynamic and static alternating" fermentation environment. Compared with the microbial stress damage caused by a single speed in the existing technology, this solution can significantly improve the fermentation efficiency.

[0069] 3. The present invention superimposes high-frequency vertical vibration during the stirring process. The vibration frame is driven by the reciprocating screw in forward and reverse rotation, and cooperates with the reset spring to generate high-frequency impact force, which effectively peels off the materials attached to the spiral blades and the stirring rod, and destroys the crust layer on the bottom of the tank. Compared with the defect of traditional equipment relying on single mechanical stirring, the synergistic effect of "vibration stirring" in this solution reduces the viscosity of the material by 60%, significantly improving the mass transfer efficiency, and is particularly suitable for the continuous fermentation of high-viscosity vegetable oil by-products.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plant oil by-product fermentation device, comprising a tank body (1), characterized in that: A rotating bracket (2) capable of periodically rotating 90° is installed on the tank body (1), a rotatable gear sleeve (3) is installed on the rotating bracket (2), a first toothed ring (5) and a second toothed ring (6) are installed on the gear sleeve (3), an eccentric wheel (4) is installed at the bottom of the gear sleeve (3), and two stirring systems are installed on the rotating bracket (2); The stirring system is rotatably connected to a transverse shaft (7) on a rotating bracket (2), and the transverse shaft (7) is transmission-connected to a first toothless ring (5) and a second toothless ring (6) through a multi-tooth transmission module. A reciprocating frame (8) capable of reciprocating and reciprocating is slidably connected to the rotating bracket (2). A group of first return springs (9) limited by the rotating bracket (2) are installed on both reciprocating frames (8). The reciprocating frames (8) are driven by an eccentric wheel (4). A spline shaft (10) and a reciprocating screw (11) are rotatably installed on the reciprocating frame (8). The spline shaft (10) and the reciprocating screw (11) are both driven by the transverse shaft (7). The reciprocating screw ( A torsion spring (12) is fixedly provided at the rotation connection between the stirring system (11) and the reciprocating frame (8); a vibration frame (13) capable of reciprocating and reciprocating is slidably installed on the reciprocating frame (8); the reciprocating screw rod (11) is transmission-connected to the vibration frame (13); a second reset spring (14) is installed between the vibration frame (13) and the reciprocating frame (8); an external rotating shaft (15) driven by a spline shaft (10) is rotatably installed on the vibration frame (13); a spiral turning blade (16) is installed on the external rotating shaft (15) in one stirring system; and a plurality of regularly distributed stirring rods (17) are installed on the external rotating shaft (15) in the other stirring system.

2. The plant oil by-product fermentation equipment according to claim 1, characterized in that: A servo motor (18) is fixedly mounted on the top of the tank body (1) and a coupling shaft (19) is rotatably mounted thereon. An incomplete gear (20) is mounted on the coupling shaft (19). An intermittent shaft (21) is fixedly mounted on the rotating bracket (2). The gear sleeve (3) is rotatably sleeved on the intermittent shaft (21). An intermittent gear (22) is mounted on the intermittent shaft (21). The incomplete gear (20) is transmission-connected to the intermittent gear (22). The output shaft end of the servo motor (18) is transmission-connected to a first synchronous belt. The coupling shaft (19) and the gear sleeve (3) are both transmission-connected to the first synchronous belt.

3. A plant oil by-product fermentation device according to claim 2, characterized in that: The two stirring systems are respectively arranged on the left and right sides of the intermittent shaft (21), and the radius of the incomplete gear (20) is 3 to 6 times the radius of the intermittent gear (22).

4. The plant oil by-product fermentation equipment according to claim 1, characterized in that: The multi-tooth transmission module comprises a left circular shaft (23) and a right circular shaft (24) which are rotatably connected to the rotating bracket (2); the left circular shaft (23) is transmission-connected to the right circular shaft (24) via a second synchronous belt; a high-speed gear (25) and a low-speed gear (26) are respectively mounted on the right circular shaft (24); the high-speed gear (25) is adaptively connected to the second toothless ring (6); the low-speed gear (26) is adaptively connected to the first toothless ring (5); the left circular shaft (23) and the transverse shaft (7) are both equipped with first bevel gears, and the two first bevel gears are meshed with each other.

5. The plant oil by-product fermentation equipment according to claim 4, characterized in that: The first tooth-missing ring (5) and the second tooth-missing ring (6) are symmetrically arranged on the gear sleeve (3), and the first tooth-missing ring (5) and the second tooth-missing ring (6) have different heights in the vertical direction. The central angles of the first tooth-missing ring (5) and the second tooth-missing ring (6) are both 120°. The radius of the second tooth-missing ring (6) is 3 to 6 times the radius of the first tooth-missing ring (5). The radius of the low-speed gear (26) is 2 to 6 times the radius of the high-speed gear (25). Two symmetrically arranged transmission interruption parts are provided on the gear sleeve (3) at a position corresponding to the position between the first tooth-missing ring (5) and the second tooth-missing ring (6). The central angle of each transmission interruption part is 60°.

6. The plant oil by-product fermentation equipment according to claim 1, characterized in that: A hollow shaft (27) is rotatably mounted on the reciprocating frame (8); a hollow groove with two ends opened and slidably connected to the transverse shaft (7) is fixedly provided inside the hollow shaft (27); the cross sections of the hollow groove and the hollow shaft (27) are both regular hexagons; the axis of the transverse shaft (7) is perpendicular to the axis of rotation of the rotating bracket (2); a second bevel gear is mounted on both the transverse shaft (7) and the spline shaft (10); the two second bevel gears are meshed with each other; a third synchronous belt is connected to the spline shaft (10) and the reciprocating screw rod (11) for transmission.

7. The plant oil by-product fermentation equipment according to claim 1, characterized in that: The top of the external rotating shaft (15) is fixedly provided with an inner square groove with a top opening and slidably connected to the spline shaft (10). The cross sections of the inner square groove and the spline shaft (10) are both regular hexagons. The axis of the external rotating shaft (15) is parallel to the rotation axis of the rotating bracket (2).

8. The plant oil by-product fermentation equipment according to claim 1, characterized in that: A heating jacket (28) is fixedly provided on the outside of the tank body (1), a pressure gauge (29), a pressure relief valve (30) and a ventilation valve (31) are respectively installed on the top of the tank body (1), a single-chip microcomputer (37) is installed on the end face of the tank body (1), a temperature probe (32) and a pH probe (33) are respectively installed on the bottom of the tank body (1), and the data ends of the pressure gauge (29), the temperature probe (32) and the pH probe (33) are all data-connected to the single-chip microcomputer (37), a feed valve (34) is installed on the top of the tank body (1), and a discharge valve (35) is connected to the bottom of the tank body (1).

9. The plant oil by-product fermentation equipment according to claim 1, characterized in that: Two symmetrically arranged guide grooves are fixedly provided inside the rotating bracket (2), and the two guide grooves are respectively slidably connected to the two reciprocating frames (8). A roller (36) is rotatably mounted on each of the two reciprocating frames (8), and the outer contour of the roller (36) is in rolling contact with the outer contour of the eccentric wheel (4).

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