Soybean soft humidifying and crushing processing device

Abstract

The invention relates to the technical field of soybean deep processing, and particularly discloses a soybean soft humidifying and crushing processing device which comprises a crushing box, two symmetrically-arranged crushing rollers are installed in the crushing box, a stock bin is arranged above the crushing box, and a discharging narrow channel communicated with the top of the crushing box is arranged at the lower end of the stock bin. A high-temperature water mist mechanism is arranged in the narrow discharging channel, and the upper end of the stock bin is connected with a negative-pressure suction filtering mechanism. A discharging roller is rotationally arranged in the portion, below the flow dividing angle box, of the discharging narrow channel, and a plurality of spiral line grooves extending in the axis direction are formed in the outer circle face of the discharging roller in an annular array shape. Soybeans can be softened by high-temperature water mist which is uniformly distributed from bottom to top in the discharging process, so that the hardness of the soybeans is reduced to a certain extent, the resistance of a crushing roller to the soybeans in the subsequent crushing process is reduced, the overload condition of a crushing roller power motor is reduced, and the service life of the soybeans is prolonged. And stable operation of the whole device is realized.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of soybean deep processing, and particularly discloses a soybean soft wetting and crushing processing device. BACKGROUND

[0002] In the process of cold-pressing soybean oil, the soybeans must be crushed into a certain size of crushed material, so as to improve the oil yield of subsequent extrusion oil pressing. The existing soybean crusher mainly adopts the synchronous reverse rotation of two crushing rollers, so that the soybeans are subjected to shearing force and extrusion force when passing through the nip of the two crushing rollers to complete crushing.

[0003] For example, the application No. 202510285641.4 discloses a soybean crusher for soybean oil production, which comprises a mounting frame, a shell, a protective shell, crushing rollers, connecting gears, fins, hollow frames and the like. The shell is connected to the mounting frame, the protective shell is connected to the side of the shell, the two crushing rollers are symmetrically and rotatably connected in the shell, the outer side of the crushing roller is provided with inclined grooves at intervals in the circumferential direction, the crushing roller is symmetrically provided with through holes in the inside, the connecting gears are connected to the left ends of the crushing rollers, the two connecting gears are meshed with each other, the connecting gears are located in the protective shell, the fins are installed in the through holes, and the hollow frames are symmetrically connected to the two sides of the shell, and the left hollow frame is located in the protective shell. The crusher disclosed by the application can send cold air into the through holes of the crushing rollers through the cooperation of the air cooler and the fins, so that the fins exchange heat with the cold air, the crushing rollers are cooled, and the denaturation of soybean protein caused by temperature rise during the crushing of soybeans is prevented, so that the product quality of the subsequent soybean oil is ensured.

[0004] However, compared with other beans, the soybeans not only have large particle size, but also have hard tissue structure. When the traditional soybean crusher is used for direct crushing treatment of the soybeans, the soybeans in the hopper are batch fed between the two crushing rollers. When the crushing rollers simultaneously crush too many soybeans, the motor is frequently overloaded, and the motor is easily damaged. Meanwhile, when the dry soybeans are crushed, the soybeans are easily stuck due to the hard physical properties of the soybeans, and the upper feeding action cannot be interrupted in time after the soybeans are stuck, so that the soybean material is accumulated above the crushing rollers, and the subsequent normal operation is affected. Therefore, in view of the above-mentioned defects of the existing soybean crusher for soybean oil production, the application provides a soybean soft wetting and crushing processing device which can effectively solve the above-mentioned technical problems. SUMMARY

[0005] The application aims to provide a soybean soft wetting and crushing processing device, so as to solve the technical problems and defects that the direct crushing treatment of the soybeans by the existing roller crusher easily causes motor overload, material sticking and the like, and the running stability of the whole device is poor.

[0006] The application is realized by the following technical scheme: A soybean soft wetting and crushing processing device, comprising a crushing box, two symmetrical crushing rollers are installed in the crushing box, a power assembly for driving the two crushing rollers is arranged on the side surface of the crushing box, a feed bin is arranged above the crushing box, a discharging narrow channel is arranged at the lower end of the feed bin and is connected with the top of the crushing box, a high-temperature water mist mechanism is arranged in the discharging narrow channel, and a negative pressure suction and filtration mechanism is connected with the upper end of the feed bin. The high-temperature water mist mechanism comprises a mixing pipe, a hot air blower is connected with the end of the mixing pipe through a heat preservation pipe, a spraying cavity is arranged in the mixing pipe close to the side of the heat preservation pipe, an atomizing nozzle is installed at the upper end of the spraying cavity, the atomizing nozzle is connected with a booster pump through a water pipe, the water inlet end of the booster pump is connected with an external water source, a plurality of shunt angle boxes are arranged side by side in the discharging narrow channel, the upper end of the shunt angle box is arranged in a triangular structure, and a mist discharging port is formed in the two side surfaces of the shunt angle box, and the end surface of each shunt angle box is connected with the mixing pipe through a connecting pipe. A discharging roller is rotatably arranged in the discharging narrow channel below the shunt angle box, and a plurality of helical line grooves extending along the axial direction are arranged in an annular array on the outer cylindrical surface of the discharging roller.

[0007] As a further arrangement of the above scheme, the feed bin is arranged in an inverted straight-angle trapezoidal shape with the upper end being wider and the lower end being narrower, a feeding strip port is formed in the upper end of one side surface of the feed bin, a sealing strip plate is rotatably arranged on the feeding strip port, an air extraction port is formed in the upper end of the side surface of the feed bin opposite to the feeding strip port, a baffle plate is arranged below the air extraction port, and the negative pressure suction and filtration mechanism is connected with the air extraction port.

[0008] As a further arrangement of the above scheme, the negative pressure suction and filtration mechanism comprises a filter box, a negative pressure device is connected with one side end of the filter box, and an air extraction pipe is connected with the other side end of the filter box and is arranged in communication with the air extraction port.

[0009] As a further arrangement of the above scheme, one of the crushing rollers is fixedly arranged in the crushing box, the other crushing roller is limitingly arranged in the crushing box, and an adjusting assembly for driving the limitingly arranged crushing roller is arranged on the crushing box, the power assembly comprises a transmission box fixedly arranged on the outer side surface of the crushing box, a power motor connected with the fixedly arranged crushing roller is arranged on the transmission box, and gears meshing with each other are arranged on the roller shafts of the two crushing rollers.

[0010] As a further arrangement of the above scheme, the adjusting assembly comprises sliding blocks arranged on the roller shafts at both ends of the limitingly arranged crushing roller, the sliding blocks are connected with the roller shafts through bearings, and limit grooves acting with the sliding blocks are formed in the two side surfaces of the crushing box, hydraulic cylinders connected with the sliding blocks are fixedly arranged at the side ends of the limit grooves.

[0011] As a further arrangement of the above scheme, a driven wheel is provided at the outer end of the roller shaft of the unloading roller, a driving wheel is provided on the roller shaft of the crushing roller for limited movement, and a transmission belt is provided between the driving wheel and the driven wheel, and a tension adjustment wheel acting on the transmission belt is provided on the outer surface of the crushing box.

[0012] As a further configuration of the above solution, the width and depth of the spiral groove are both set between 1.4 and 1.6 times the average particle size of soybeans.

[0013] As a further arrangement of the above scheme, feed guide plates are provided in the crushing boxes above the two crushing rollers, and both feed guide plates guide the soybeans to the top of the roller gap between the two crushing rollers. A downwardly inclined material receiving guide plate is provided in the crushing box below the two crushing rollers, and a sieve plate which is inclined in the opposite direction and extends out from the side of the crushing box is provided at the lower inclined end of the material receiving guide plate, and a discharge conveying auger is provided at the bottom of the crushing box.

[0014] As a further configuration of the above solution, a scraper elevator with its lower end connected to the sieve plate is provided on the side of the crushing box, and a return channel connected to the upper surface of the crushing box is provided on the upper end of the scraper elevator.

[0015] During operation, the soybean softening and crushing processing device disclosed in the present invention first fills the silo with soybeans, and in the subsequent operation process, soybeans are replenished in time whenever the soybeans in the silo drop to a certain height to ensure the material level of the soybeans in the silo.

[0016] Next, the high-temperature water mist mechanism and the negative pressure suction and filtration mechanism are activated simultaneously. During operation, the negative pressure suction and filtration mechanism continuously draws air from the upper end of the silo, sending the extracted air into the filter box for filtration. During operation, the hot air blower continuously introduces high-temperature air into the mixing tube. Driven by the booster pump, the atomizing nozzle continuously sprays atomized liquid into the spray chamber. The high-temperature air acts on the atomized liquid, rapidly heating the water mist to 60-80°C. The mist then flows along with the high-temperature air into a row of diverter angle boxes, where it is then discharged through the exhaust ports on both sides of the diverter angle boxes. After discharge, the high-temperature water mist, under the influence of negative pressure at the upper end of the silo, moves upward along the gaps between the soybeans inside the silo. During this upward and downward movement, it continuously comes into contact with the soybeans, allowing the soybeans to fully absorb the heat and moisture of the high-temperature water mist and soften to a certain extent.

[0017] When soybeans move from the top of the silo to the narrow discharge channel, the entire discharge process is controlled for at least 6 minutes to ensure the softening effect of the soybeans. Subsequently, the softened soybeans are evenly filled into the spiral grooves on the discharge rollers in rows. As the discharge rollers rotate downward, the rows of soybeans in the spiral grooves are discharged one after another and enter the roller gap between the two crushing rollers. The shear and extrusion forces provided by the two crushing rollers, combined with the softening of the soybeans themselves, can achieve low-resistance crushing of the soybeans without motor overload. At the same time, because the soybeans fall in an orderly manner in rows, there will be no jamming due to excessive batch discharge of soybeans.

[0018] Finally, after being crushed by two crushing rollers, the soybeans will fall onto the sieve plate, and the sieve plate will screen the crushed soybean fragments. The small particles that meet the size will fall into the discharging conveyor auger for quantitative delivery, while the large particles that do not meet the size will be transported by the scraper elevator to the top of the two crushing rollers for further crushing to ensure the crushing effect of the soybeans.

[0019] In addition, when the control system of the entire device finds that the current of the power motor suddenly increases, it indicates that the material is stuck. Then the control system will actively control the two hydraulic cylinders to retract. Under the action of the hydraulic cylinders, the crushing roller set in the limit movement can move away from the other crushing roller. Then, after the roller gap between the two crushing rollers becomes larger, the stuck soybean material can be discharged smoothly. At the same time, during the process of the two crushing rollers moving away from each other, the two gears will also separate, making it impossible for the power of the power motor to be transmitted to the crushing roller that is limited in movement. As a result, not only the crushing roller will stop rotating, but also the feeding roller will stop rotating, and then the continued feeding of soybeans will be suspended. This will prevent the continued feeding of soybeans during this process, causing uncrushed soybeans to pass directly through the roller gap, and when the two crushing rollers are running again, there will be too much soybeans above the roller gap between the two, causing the material to jam.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The soybean softening and crushing processing device disclosed in the present invention arranges a high-temperature water mist mechanism at the lower end of the hopper and connects a negative pressure suction and filtering mechanism at the upper end, so that the soybeans can be softened by the high-temperature water mist evenly distributed from bottom to top during the feeding process, thereby reducing the hardness of the soybeans to a certain extent, reducing the resistance of the subsequent crushing roller when crushing the soybeans, reducing the overload of the crushing roller power motor, and realizing stable operation of the entire device.

[0021] The present invention also changes the existing unloading mechanism at the bottom of the silo. By opening a spiral groove on the roller body of the unloading roller and controlling the groove width and groove depth of the spiral groove, the soybeans can fall into the roller gap between the two crushing rollers in rows during the unloading process, avoiding the existing batch unloading of soybeans that causes a large operating load on the crushing rollers and is prone to piling and jamming, further ensuring the stable operation of the entire device.

[0022] The present invention also sets one of the two crushing rollers to a limited position and moves, and sets the rotation of the feed roller to be driven by the crushing roller. When material jamming occurs, not only can the crushing roller be quickly controlled to move away, thereby opening the roller gap between the two crushing rollers and achieving smooth discharge of soybean material, but the power source of the feed roller can also be immediately cut off, thereby preventing the feed roller from continuing to discharge material, causing uncrushed soybeans to pass directly through the roller gap, and preventing the material jamming phenomenon from occurring again due to excessive amount of soybeans above the roller gap when the two crushing rollers are running again.

[0023] The present invention further provides a sieve plate to size the crushed soybean fragments. The soybean fragments that do not meet the crushing size requirements can be transported again by the scraper elevator to the top of the two crushing rollers for further crushing, thereby fully ensuring the crushing effect of the soybeans. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention; Figure 3 Schematic diagram of the three-dimensional structure inside the silo of the present invention; Figure 4 Schematic diagram of the flow of high-temperature water mist inside the silo in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the feeding mechanism and the high-temperature water mist mechanism in the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the crushing box, power components, etc. in the present invention; Figure 7 Schematic diagram of the three-dimensional structure inside the crushing box of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the crushing roller, feeding mechanism, etc. in the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Figures 1 to 8 , and describes the application in detail with reference to embodiments. Example 1

[0028] Example 1 discloses a soybean softening and crushing processing device, see the attached Figure 1 and attached Figure 2 The main body of the device includes a frame 1 and the control system of the entire device. A silo 2 is provided at the upper end of the frame 1, and a crushing box 3 connected to the bottom of the silo 2 is provided at the lower end of the frame 1. The lower end of the crushing box 3 is connected to a discharging conveying auger 4, and a high-temperature water mist mechanism 5 is connected to the lower end of the silo 2.

[0029] Reference Attachment Figure 3 and attached Figure 4 The silo 2 is generally in the shape of an inverted right-angled trapezoid, wider at the top and narrower at the bottom, with a narrow discharge channel 201 connected to the lower end of the silo 2. A feeding strip 202 is provided at the upper end of one side surface of the silo 2, and a sealing strip 203 is provided on the feeding strip 202 via a hinge. An air extraction port 204 is provided at the upper end of the side surface of the silo 2 opposite the feeding strip 202, and a baffle 205 is provided below the air extraction port 204. A negative pressure suction filter mechanism 6 is also connected to the outer end of the air extraction port 204. The specific negative pressure suction filter mechanism 6 includes a filter box 601, a negative pressure fan 602 or an air pump is connected to one end of the filter box 601, and an air extraction pipe 603 is connected to the other end of the filter box 601, and the end of the air extraction pipe 603 is connected to the air extraction port 204. During operation, the above-mentioned negative pressure suction filtration mechanism 6 can form a negative pressure state at the upper end of the silo 2, thereby drawing the high-temperature water mist in the narrow discharge channel 201 upward, so that the high-temperature water mist can fully contact with the soybeans accumulated above during the upward movement, thereby prompting the soybeans to absorb water and heat, and softening the hardness of their own tissue structure to a certain extent.

[0030] The high-temperature water mist mechanism 5 includes a mixing tube 501, one end of which is connected to a hot air blower 503 via an insulated pipe 502. A spray chamber 504 is provided in the mixing tube 501 near one end of the insulated pipe 502. An atomizing nozzle 505 is mounted on the top wall of the spray chamber 504, with its lower end extending into the spray chamber 504. The top of the atomizing nozzle 505 is connected to a booster pump 506 via a water pipe. The water inlet of the booster pump 506 is connected to an external water source via a pipe. A drain hole is provided at the bottom of the mixing tube 501 to remove liquefied water from the interior.

[0031] In addition, multiple diverter angle boxes 507 are arranged side by side in the narrow material discharge channel 201, and the upper ends of the diverter angle boxes 507 are all triangular in structure. Mist outlets 5071 are provided on both sides of each diverter angle box 507, and the end faces of each diverter angle box 507 are connected to the mixing tube 501 via connecting pipes 508. During operation, the high-temperature water mist mechanism 5 continuously generates high-temperature hot air at approximately 90-110°C from the hot air blower 503 and passes it into the mixing tube 501. Simultaneously, the booster pump 506 continuously delivers external water to the atomizing nozzle 505, which then sprays water mist into the spray chamber 504. After being affected by the high-temperature hot air, the sprayed water mist moves backward together. At the same time, the water mist absorbs the temperature of the high-temperature hot air, causing itself to quickly heat up to about 60-80°C. The mixed high-temperature water mist then enters the diversion angle box 507 through the connecting pipe 508 and is discharged from the mist outlet 5071 on both sides of the diversion angle box 507. At this time, the soybeans moving downward from the gap between the two adjacent diversion angle boxes 507 will be affected by the high-temperature water mist. At the same time, the high-temperature water mist will continue to flow upward under the negative pressure suction at the upper end of the silo 2, thereby fully contacting the soybeans above. In order to ensure the softening and moistening effect of the high-temperature water mist on the soybeans, the time it takes for the soybeans at the upper end of the inner cavity of the silo 2 to move to the position of the diversion angle box 507 must be controlled to be at least 6 minutes, so as to ensure that the soybeans' own tissue hardness is softened to a certain extent before the crushing process.

[0032] Reference Attachment Figures 3 to 6 And attached Figure 8 A discharge mechanism 7 is provided in the discharge narrow channel 201 below the diversion angle box 507, two crushing rollers 8 are symmetrically provided in the crushing box 3 directly below the discharge mechanism 7, and a power component 9 is provided on the outer side of the crushing box 3 for driving the two crushing rollers 8 to rotate synchronously in opposite directions.

[0033] The specific unloading mechanism 7 includes a unloading roller 701 rotatably mounted within the unloading channel 201. A unloading motor (not shown) is connected to one end of the unloading roller 701's shaft to control its rotation. A plurality of spiral grooves 702 extending along the axis are formed in a circular array on the outer circumference of the unloading roller 701. The width and depth of the spiral grooves 702 are set between 1.4 and 1.6 times the average soybean particle size. This ensures that after each rotation of the unloading roller 701 by a certain angle, the spiral grooves 702 are filled with a row of evenly spaced soybeans. When the spiral grooves 702, once filled with soybeans, rotate to the bottom, they fall to their corresponding axial positions under their own gravity. Two crushing rollers 8 then apply shear and compression forces to the soybeans, breaking them into correspondingly sized pieces that pass through the gap between the two crushing rollers 8 and ultimately fall into the discharge conveyor auger 4 for delivery. Example 2

[0034] Example 2 discloses a soybean softening and crushing processing device that is further optimized and improved based on the technical solution in Example 1. The similarities between it and Example 1 are not described again.

[0035] Reference Attachment Figures 6-8 In this second embodiment, one crushing roller 8 is fixedly rotatably mounted within the crushing chamber 3. Sliding blocks 801 are rotatably connected to the roller shafts of the other crushing roller 8 via bearings at both ends. Limiting notches are also provided on both sides of the crushing chamber 3, corresponding to the sliding blocks 801. Hydraulic cylinders 802 are positioned at the sides of these limiting notches, with their retractable ends connected to the sliding blocks 801. This structural design allows the gap between the two crushing rollers 8 to be adjusted by controlling the extension or contraction of the hydraulic cylinders 802.

[0036] In addition, the power assembly 9 in this embodiment 2 includes a transmission box 901 fixed to the outer surface of the crushing box 3, and the transmission box 901 is provided with a power motor 902 connected to the fixed rotating crushing roller 8, and then the roller shafts of the two crushing rollers 8 are provided with mutually meshing gears 903. Through the mutual meshing between the two gears 903 and the power input of the power motor 902, the synchronous reverse rotation of the two crushing rollers 8 can be achieved.

[0037] In addition, a driving wheel is provided on the roller shaft of the crushing roller 8 connected to the sliding block 801, and then the unloading motor connected to the outer end of the unloading roller 701 is changed to a driven wheel 703, and a transmission belt 904 is provided between the driving wheel and the driven wheel 703. At the same time, a tension adjustment wheel 905 acting on the transmission belt 904 is also provided on the outer surface of the crushing box 3.

[0038] In this second embodiment, through the above-described optimized design, when the current of the power motor 902 suddenly increases during operation of the soybean softening and crushing processing device, it indicates a material jam. At this point, the control system of the entire device actively controls the retraction of the two hydraulic cylinders 802, allowing the movable crushing roller 8 to move away from the other crushing roller under the action of the hydraulic cylinders 802. After the gap between the two crushing rollers 8 widens, the jammed soybean material can be discharged. Simultaneously, the two gears 903 also disengage, preventing the power of the power motor 902 from being transmitted to the movable crushing roller 8. This causes the crushing roller 8 to stop rotating, pausing the rotation of the feed roller 701. Once the feed roller 701 stops rotating, the continued feeding of soybeans can be suspended. Once the material jam is resolved, the hydraulic cylinder 802 extends and resets, causing the two crushing rollers 8 to rotate synchronously in opposite directions again to crush the soybeans. The feed roller 701 also resumes operation synchronously, feeding the soybeans into the crushing gap. Example 3

[0039] Example 3 discloses a soybean softening and crushing processing device that is further optimized and improved based on the technical solution in Example 2. The similarities between it and Example 2 are not described again.

[0040] Reference Attachment Figure 6 and attached Figure 8 In this embodiment 2, a feed guide plate 10 is installed in the crushing box 3 above the two crushing rollers 8. Both feed guide plates 10 are capable of guiding soybeans toward the upper part of the roller gap between the two crushing rollers 8. Furthermore, a downwardly inclined material receiving guide plate 11 is installed in the crushing box 3 below the two crushing rollers 8. A reversely inclined sieve plate 12 is installed at the lower inclined end of the material receiving guide plate 11, and the lower inclined end of the sieve plate 12 extends out of the side of the crushing box 3. Finally, a scraper elevator 13 is installed on the side of the crushing box 3, with its lower end connected to the sieve plate 12. A return channel 14 is installed at the upper end of the scraper elevator 13, which is connected to the upper surface of the crushing box 3.

[0041] Through the above-mentioned optimized design, this embodiment 2 can, on the one hand, enable the input soybeans to move to the roller gap between the two crushing rollers 8 for effective crushing processing; on the other hand, the crushed soybean fragments can be screened by the sieve plate 12, and the soybean fragments that meet the particle size will fall into the discharging conveying auger 4 for delivery, while the unscreened soybean fragments will enter the bottom of the scraper elevator 13, and then be sent back by the scraper elevator 13 to the top of the two crushing rollers 8 for secondary crushing processing, thereby ensuring the soybean crushing effect.

[0042] The above merely preferred embodiments of the present application are not used to limit the present application, any modification, equivalent replacement and improvement etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A soybean softening and crushing processing device, comprising a crushing box, wherein two symmetrically arranged crushing rollers are installed inside the crushing box, and a power assembly for driving the two crushing rollers is provided on the side of the crushing box, and a hopper is provided above the crushing box, characterized in that: The lower end of the silo is provided with a narrow material discharge channel connected to the top of the crushing box, a high-temperature water mist mechanism is provided in the narrow material discharge channel, and the upper end of the silo is connected to a negative pressure suction filter mechanism; The high-temperature water mist mechanism includes a mixing tube, the end of which is connected to a hot air blower through an insulation pipe, a spray chamber is provided in the mixing tube near one side of the insulation pipe, an atomizing nozzle is installed at the upper end of the spray chamber, the atomizing nozzle is connected to a booster pump through a water pipe, and the water inlet end of the booster pump is connected to an external water source, a plurality of diversion angle boxes are arranged side by side in the narrow channel of the material discharge, the upper end of the diversion angle box is arranged in a triangular structure, and mist exhaust ports are provided on both side surfaces of the diversion angle box, and the end surface of each diversion angle box is connected to the mixing tube through a connecting pipe; A feeding roller is rotatably arranged in the feeding narrow channel below the diversion angle box, and a plurality of spiral grooves extending along the axial direction are formed in an annular array on the outer circumferential surface of the feeding roller.

2. The soybean softening and crushing processing device according to claim 1, characterized in that: The silo is in the shape of an inverted right-angled trapezoid that is wider at the top and narrower at the bottom. A feeding strip is provided at the upper end of one side surface of the silo, and a sealing strip is rotatably provided on the feeding strip. An air suction port is provided at the upper end of the side surface of the silo opposite to the feeding strip, and a deflector is provided below the air suction port. The negative pressure suction and filtering mechanism is connected to the air suction port.

3. The soybean softening and crushing processing device according to claim 2, characterized in that: The negative pressure suction filtration mechanism includes a filter box, one side of the filter box is connected to a negative pressure device, the other side of the filter box is connected to an exhaust pipe, and the end of the exhaust pipe is connected to the exhaust port.

4. The soybean softening and crushing processing device according to claim 1, characterized in that: One of the crushing rollers is fixedly arranged in the crushing box, and the other crushing roller is limitedly movable in the crushing box, and the crushing box is provided with an adjustment component for driving the crushing roller to limit movement. The power component includes a transmission box fixed on the outer surface of the crushing box, and the transmission box is provided with a power motor connected to the fixed crushing roller, and the roller shafts of the two crushing rollers are provided with gears that mesh with each other.

5. The soybean softening and crushing processing device according to claim 4, characterized in that: The adjustment assembly includes sliding blocks arranged on the roller shafts at both ends of the crushing roller that limits movement. The sliding blocks are connected to the roller shafts through bearings, and both sides of the crushing box are provided with limiting slots that act on the sliding blocks. The side ends of the limiting slots are fixed with hydraulic cylinders connected to the sliding blocks.

6. The soybean softening and crushing processing device according to claim 5, characterized in that: A driven wheel is provided at the outer end of the roller shaft of the unloading roller, a driving wheel is provided on the roller shaft of the crushing roller that moves in a limited manner, and a transmission belt is provided between the driving wheel and the driven wheel, and a tension adjustment wheel acting on the transmission belt is provided on the outer surface of the crushing box.

7. The soybean softening and crushing processing device according to claim 1 or 6, characterized in that: The width and depth of the spiral groove are both set between 1.4 and 1.6 times the average particle size of soybeans.

8. The soybean softening and crushing processing device according to claim 1, characterized in that: The crushing box above the two crushing rollers is provided with a feed guide plate, and the two feed guide plates guide the soybeans to the top of the roller gap between the two crushing rollers. The crushing box below the two crushing rollers is provided with a downwardly inclined material receiving guide plate, and the lower inclined end of the material receiving guide plate is provided with a reversely inclined sieve plate extending out from the side of the crushing box. The bottom of the crushing box is provided with a discharge conveying auger.

9. The soybean softening and crushing processing device according to claim 8, characterized in that: A scraper elevator whose lower end is connected to the sieve plate is provided on the side of the crushing box, and a return channel connected to the upper surface of the crushing box is provided on the upper end of the scraper elevator.

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