Bulk bin unloading and loading system

Abstract

The application discloses a kind of bulk storage under discharging loading system, including pedestal, the top of pedestal is fixedly connected with stand, the top of four stand is fixedly connected with fixed seat, pressure sensor is installed in the top of fixed seat, the top of four stand is slidably provided with connecting seat, connecting seat is connected in the top of pressure sensor, the top of connecting seat is fixedly connected with fixed frame, fixed frame is fixedly installed in the inside with bin, annular groove is formed in the outside of bin, annular gear ring is rotatably connected in annular groove by bearing, fixed rod is fixedly connected in the inner wall of annular gear ring at equal intervals, the bottom of bin is provided with discharging cylinder, discharging cylinder bottom connects receiving pipe, receiving pipe end connects discharge port, the bottom of stand is provided with adjusting mechanism for adjusting the position of discharge port in X axis, Y axis and Z axis, can realize quantitative loading, and prevent material bridging during loading process, with the advantages of accurate quantitative control, stable discharge and even loading.

Description

Technical Field

[0001] This invention relates to the field of bulk material loading technology, and more particularly to a bulk material silo bottom loading system. Background Technology

[0002] Bulk materials are typically stored in silos, such as grains like wheat, soybeans, and corn, as well as powdery and granular materials like bulk cement. During the transfer process, bulk materials usually need to be loaded into transport vehicles through a loading system. The continuity of material discharge from the loading system, the accuracy of the loading quantity, and the uniformity of material distribution within the vehicle compartment directly affect loading efficiency, on-site dust control, and the stability of subsequent transportation.

[0003] Existing bulk material silo loading systems typically rely on gravity discharge from the silo and utilize dust suppression hoppers, discharge plates, translation mechanisms, or weighing mechanisms to achieve dust suppression, material distribution, and quantitative loading. While such structures can reduce dust and achieve horizontal material distribution to some extent, for bulk materials with high moisture content, high viscosity, or a tendency to bridging, bridging can still easily occur at the silo cone or discharge cylinder inlet, leading to discontinuous or even interrupted discharge.

[0004] Meanwhile, the discharge ports of existing loading systems can only move horizontally, lacking vertical adjustment structures. When the material accumulation height inside the truck bed changes, or when transport vehicles have different heights, the fixed-height discharge ports easily cause excessive drop heights, exacerbating dust, material breakage, and localized accumulation. Therefore, there is an urgent need for a bulk material silo bottom-loading system to solve the problems of bridging and flow interruption, insufficient discharge port adjustment dimensions, poor adaptability to different vehicles, and uneven material distribution inside the truck bed during existing bulk material loading processes. Summary of the Invention

[0005] In view of this, the present invention proposes a bulk material silo unloading and loading system, which is applied to the field of bulk material loading technology and solves the technical problems of easy bridging and flow interruption, insufficient adjustment dimension of the discharge port, poor adaptability to different vehicles, and uneven material distribution in the truck compartment during the existing bulk material loading process.

[0006] To achieve the above-mentioned technical objectives, the specific technical solution adopted by the present invention is as follows: A bulk material silo unloading system includes a base, columns fixed to the top of the base, four fixed seats fixed to the top of the columns, pressure sensors mounted on the top of the fixed seats, connecting seats slidably mounted on the top of the four columns, the connecting seats connected to the top of the pressure sensors, a fixed frame fixed to the top of the connecting seats, a silo fixedly installed inside the fixed frame, an annular groove opened on the outer side of the silo, an annular gear ring rotatably connected to the annular groove via bearings; fixed rods are fixedly fixed at equal intervals on the inner wall of the annular gear ring, support rods are fixedly fixed to the ends of the fixed rods, a discharge cylinder integrally provided at the bottom of the silo, a spiral blade connected to the outer side of the section of the support rod inside the discharge cylinder, a receiving pipe connected to the bottom of the discharge cylinder, and a discharge port connected to the end of the receiving pipe; adjustment mechanisms for adjusting the X-axis, Y-axis and Z-axis positions of the discharge port are provided at the bottom inside the four columns; an anti-segregation guiding mechanism is provided on the outer side of the support rod to prevent radial force segregation of the bulk material due to centrifugal force and gravity during the unloading process.

[0007] Furthermore, the adjustment mechanism includes a fixed frame, an electric push rod, an adjustment seat, and a linear guide rail. The fixed frame is slidably connected between the four columns. An electric push rod is fixedly installed on one side wall of the fixed frame. The piston rod end of the electric push rod extends into the fixed frame and is fixedly connected to the adjustment seat. The adjustment seat is slidably connected between the corresponding two inner walls of the fixed frame. A linear guide rail is provided inside the adjustment seat along its length. The top of the discharge port is fixedly installed in the slider of the linear guide rail.

[0008] Furthermore, the anti-segregation guiding mechanism includes an anti-segregation guiding cone sleeve, a rectifier guide vane, and an annular turbulence ring. The anti-segregation guiding cone sleeve is fitted on the outside of the support rod, the rectifier guide vane is disposed on the inner wall of the anti-segregation guiding cone sleeve, and the annular turbulence ring is disposed on the outer wall of the anti-segregation guiding cone sleeve, which is used to axially rectify and radially turbulently mix the falling bulk material.

[0009] Furthermore, a controller is installed on the outside of the fixed base, a drive motor is fixedly installed inside the fixed frame, a drive gear is fixedly connected to the end of the output shaft of the drive motor, the drive gear is meshed with the ring gear, a stirring rod is fixedly connected at equal intervals to the outside of the support rod outside the fixed rod, and a dispersing rod is provided at equal intervals on the outside of both the stirring rod and the fixed rod, and the controller is electrically connected to the drive motor.

[0010] Furthermore, fixed plates are fixed to the side walls of the columns at both ends of the top of the base. Lifting screws and limiting columns are respectively connected between the two fixed plates and the base. Lifting blocks are fixed to the corresponding side walls of the fixed frame. The lifting block at one end of the fixed frame is threaded to the outside of the lifting screw, and the lifting block at the other end of the fixed frame is slidably connected to the outside of the limiting column. A servo motor is fixedly installed on the top of the fixed plate, and the output shaft end of the servo motor is fixedly connected to the lifting screw.

[0011] Furthermore, the anti-segregation guiding mechanism is set between the support rod and the spiral blade and sleeved inside the feed cylinder. It is used to axially rectify and radially disturb and mix the rotating and falling bulk material to reduce the radial particle size segregation phenomenon of the material during the falling process.

[0012] Furthermore, the two inner walls of the fixed frame are integrally provided with limit rods, and the two ends of the adjusting seat are provided with limit grooves, with the limit rods slidingly connected in the limit grooves.

[0013] Furthermore, a manual valve is installed on the outer side of the bottom end of the feeding cylinder, and an electrically controlled valve is installed on the outer side of the receiving pipe at one end of the feeding cylinder.

[0014] Furthermore, the receiving tube is a flexible hose.

[0015] Furthermore, the length of the stirring rod is less than the length of the fixed rod.

[0016] This invention achieves stable flow of bulk materials during the conveying, dispersing, and falling process from the silo to the discharge port through the overall structural coordination of components such as the silo, discharge cylinder, support rod, spiral blade, stirring rod, and dispersing rod. The multiple components form a reliable transmission path and material guiding constraint, enabling the discharge port to be precisely aligned with any drop point in the truck bed under X, Y, and Z axis adjustment. It is an engineered integrated structure formed by the mutual cooperation of multiple components. The anti-segregation guiding mechanism can eliminate radial particle size segregation caused by rotary stirring, reduce the drop speed, and meet the system requirements of multi-point, layered, uniform loading of bulk materials and prevention of bridging and blockage.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects: 1. The bulk material loading system proposed in this invention, through the cooperation of pressure sensors, connecting seats, fixed frames, silos, controllers, and electrically controlled valves, can detect weight changes in the silo and fixed frames, and control the opening and closing of the electrically controlled valves according to the preset loading amount, giving the bulk material loading process quantitative control capability. Through the anti-segregation guiding mechanism, the flow trajectory of the falling bulk material is homogenized and controlled, so that the material is subjected to axial rectification and radial disturbance during the conveying and falling process, thereby reducing the radial particle size stratification phenomenon caused by gravity and centrifugal action and improving loading uniformity. Through the cooperation of annular gear ring, drive motor, drive gear, fixed rod, support rod, stirring rod, dispersing rod, and spiral blades, the material in the lower part of the silo and the discharge cylinder is in an active disturbance and downward conveying state, which can reduce the risk of bridging and blockage of material in the lower part of the silo and the discharge cylinder, thereby ensuring the continuity and stability of the material discharge process.

[0018] 2. The bulk material hopper loading system proposed in this invention, through the cooperation of a fixed frame, electric push rod, adjusting seat and linear guide rail, enables the discharge port to be adjusted in the X and Y axis directions; through the cooperation of a fixed plate, lifting screw, servo motor, lifting block and limiting column, the fixed frame and discharge port can be adjusted in the Z axis direction, so that the discharge port can adapt to different car heights and different dropping positions. Through the cooperation of receiving pipe and discharge port, bulk material can be discharged according to the change of discharge port position, which is convenient for layered and multi-point loading of different areas in the car. It has the advantages of quantitative loading, continuous unloading, uniform loading, strong adaptability and flexible use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a bulk material silo unloading and loading system mentioned in this invention; Figure 2 This is a schematic diagram of the connection structure between the feed cylinder and the receiving pipe in this embodiment; Figure 3 This is a schematic diagram of the connection structure between the hopper and the annular gear ring in this embodiment; Figure 4 This is a schematic diagram of the connection structure between the support rod and the fixing rod in this embodiment; Figure 5 This is a schematic diagram of the connection structure between the annular turbulence ring and the rectifier guide vane in this embodiment; The components are as follows: 1. Base; 2. Column; 3. Fixed seat; 4. Pressure sensor; 5. Connecting seat; 6. Controller; 7. Fixing frame; 8. Hopper; 9. Annular gear ring; 10. Drive motor; 11. Drive gear; 12. Fixing frame; 13. Electric push rod; 14. Adjusting seat; 15. Linear guide rail; 16. Feeding cylinder; 17. Manual valve; 18. Electric control valve; 19. Feeding pipe; 20. Fixing rod; 21. Support rod; 22. Stirring rod; 23. Dispersing rod; 24. Spiral blade; 25. Fixing plate; 26. Lifting screw; 27. Servo motor; 28. Lifting block; 29. ​​Limiting post; 30. Discharge port; 31. Adjusting mechanism; 32. Limiting rod; 33. Anti-segregation guiding mechanism; 34. Anti-segregation guiding cone sleeve; 35. Annular turbulence ring; 36. Rectifying guide vane. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0022] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0024] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details. Example 1

[0026] like Figures 1 to 5 As shown, a bulk material silo unloading and loading system includes a base 1, with columns 2 fixedly connected to the top of the base 1. Four fixed seats 3 are fixedly connected to the tops of the columns 2, and pressure sensors 4 are installed on the tops of the fixed seats 3. Connecting seats 5 are slidably disposed on the tops of the four columns 2, connecting to the tops of the pressure sensors 4. A fixing frame 7 is fixedly connected to the top of the connecting seats 5, and a silo 8 is fixedly installed inside the fixing frame 7. An annular groove is formed on the outer side of the silo 8, and an annular gear ring 9 is rotatably connected to the annular groove via a bearing.

[0027] Fixed rods 20 are equidistantly fixed to the inner wall of the annular gear ring 9, and support rods 21 are fixed to the ends of the fixed rods 20. A discharge cylinder 16 is integrally formed at the bottom of the hopper 8, and a spiral blade 24 is connected to the outer side of a section of the support rod 21 inside the discharge cylinder 16. A receiving pipe 19 is connected to the bottom of the discharge cylinder 16, and a discharge port 30 is connected to the end of the receiving pipe 19. Adjustment mechanisms 31 for adjusting the X-axis, Y-axis, and Z-axis positions of the discharge port 30 are provided at the bottom inside the four columns 2.

[0028] The adjusting mechanism 31 includes a fixed frame 12, an electric push rod 13, an adjusting seat 14, and a linear guide rail 15. The fixed frame 12 is slidably connected between the four columns 2. An electric push rod 13 is fixedly installed on one side wall of the fixed frame 12. The piston rod end of the electric push rod 13 extends into the fixed frame 12 and is fixedly connected to the adjusting seat 14. The adjusting seat 14 is slidably connected between two corresponding inner walls of the fixed frame 12. A linear guide rail 15 is arranged along the length of the adjusting seat 14. The top end of the discharge port 30 is fixedly installed in the slider of the linear guide rail 15.

[0029] A controller 6 is mounted on the outside of the fixed base 3. A drive motor 10 is fixedly mounted inside the fixed frame 7. A drive gear 11 is fixedly connected to the end of the output shaft of the drive motor 10, and the drive gear 11 meshes with the ring gear 9. An agitator 22 is fixedly connected at equal intervals to the outside of the fixed rod 20 on the outside of the support rod 21. Dispersing rods 23 are equally spaced on the outside of both the agitator 22 and the fixed rod 20. The controller 6 is electrically connected to the drive motor 10.

[0030] Fixed plates 25 are fixedly connected to the side walls of the columns 2 at both ends of the top of the base 1. Lifting screws 26 and limiting posts 29 are respectively connected between the two fixed plates 25 and the base 1. Lifting blocks 28 are fixedly connected to the corresponding side walls of the fixed frame 12. One end of the lifting block 28 of the fixed frame 12 is threaded to the outside of the lifting screw 26, and the other end of the lifting block 28 is slidably connected to the outside of the limiting post 29. A servo motor 27 is fixedly installed on the top of the fixed plate 25, and the output shaft end of the servo motor 27 is fixedly connected to the lifting screw 26.

[0031] Limiting rods 32 are integrally provided on both inner walls of the fixed frame 12, and limiting grooves are provided at both ends of the adjusting seat 14. The limiting rods 32 are slidably connected in the limiting grooves. A manual valve 17 is installed on the outer side of the bottom end of the feeding cylinder 16, and an electric control valve 18 is installed on the outer side of one end of the receiving pipe 19. The receiving pipe 19 is a flexible hose, and the length of the agitator 22 is less than the length of the fixed rod 20.

[0032] An anti-segregation guiding mechanism 33 is also provided on the outside of the support rod 21. The anti-segregation guiding mechanism 33 is located between the stirring rod 22 and the spiral blade 24 and is sleeved inside the feeding cylinder 16. The anti-segregation guiding mechanism 33 includes an anti-segregation guiding cone sleeve 34, an annular turbulence ring 35 and a rectifying guide vane 36. The anti-segregation guiding cone sleeve 34 is fixedly sleeved on the outside of the support rod 21. The anti-segregation guiding cone sleeve 34 has a cone-shaped structure that is smaller at the top and larger at the bottom. The rectifying guide vane 36 is arranged circumferentially on the inner wall of the anti-segregation guiding cone sleeve 34. The annular turbulence ring 35 is arranged at intervals in the vertical direction on the outer wall of the anti-segregation guiding cone sleeve 34. An annular discharge channel is formed between the bottom of the anti-segregation guiding cone sleeve 34 and the inner wall of the feeding cylinder 16.

[0033] In operation, bulk materials are loaded into the hopper 8 by an external conveying device. A pressure sensor 4 detects weight changes in the connecting seat 5, the fixing frame 7, and the hopper 8, and transmits the weight signal to the controller 6. The controller 6 controls the opening of the electrically controlled valve 18 according to the preset loading amount. The bulk materials enter the discharge cylinder 16 from the hopper 8, then fall into the transport vehicle via the receiving pipe 19 and the discharge port 30. When the pressure sensor 4 detects a weight reduction value reaching the preset loading amount, the controller 6 controls the electrically controlled valve 18 to close. During the unloading process, the drive motor 10 drives the drive gear 11 to rotate, which in turn drives the ring gear 9 to rotate. The ring gear 9, through the fixing rod 20, drives the support rod 21 to rotate. The support rod 21 drives the spiral blade 24, stirring rod 22, and dispersing rod 23 to rotate, causing the material in the lower part of the silo 8 and the discharge cylinder 16 to be stirred and conveyed downwards. When the material flows downwards from the silo 8, it first contacts the upper opening of the anti-segregation guide cone sleeve 34. The conical slope forces the originally radially distributed material to slide downwards along the outer wall of the anti-segregation guide cone sleeve 34, causing the coarse particles on the outside and the fine particles on the inside to converge and remix on the surface of the anti-segregation guide cone sleeve 34. When the material passes through each layer of annular turbulent ring 35, local turbulence and velocity fluctuations will be generated, causing the coarse and fine particles to further cross-mix, completely eliminating the centrifugal segregation introduced by the previous stirring, and preventing segregation. When the flow guide cone sleeve 34 rotates, it drives the multiple rectifier guide vanes 36 on it to rotate. The rectifier guide vanes 36 convert the high-speed tangential airflow and material rotation momentum driven by the rotation of the support rod 21 into vertically downward axial flow. According to the position and height of the transport vehicle compartment, the electric push rod 13 pushes the adjustment seat 14 to move within the fixed frame 12 to adjust the position of the discharge port 30 in the X-axis direction. The slider of the linear guide rail 15 drives the discharge port 30 to move along the Y-axis direction. The servo motor 27 drives the lifting screw 26 to rotate. The lifting screw 26 drives the fixed frame 12 to move up and down along the limit post 29 through the lifting block 28 to adjust the position of the discharge port 30 in the Z-axis direction.

[0034] In summary, this invention forms a quantitative loading structure through pressure sensor 4, connecting seat 5, fixing frame 7, and controller 6; an active arch-breaking and conveying structure through annular gear ring 9, fixing rod 20, support rod 21, stirring rod 22, dispersing rod 23, and spiral blade 24; and a three-axis adjustment structure for discharge port 30 through fixing frame 12, electric push rod 13, adjusting seat 14, linear guide rail 15, lifting screw 26, servo motor 27, and limiting column 29. This allows for quantitative discharge, continuous feeding, and multi-point dropping during the loading process from the bulk material silo. It boasts advantages such as reasonable structural design, stable feeding, and good loading adaptability.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A bulk material silo unloading and loading system, comprising a base (1), wherein a column (2) is fixedly connected to the top of the base (1), characterized in that: A fixed seat (3) is fixedly connected to the top of each of the four columns (2), and a pressure sensor (4) is installed on the top of the fixed seat (3). A connecting seat (5) is slidably provided on the top of each of the four columns (2), and the connecting seat (5) is connected to the top of the pressure sensor (4). A fixed frame (7) is fixedly connected to the top of the connecting seat (5), and a hopper (8) is fixedly installed inside the fixed frame (7). An annular groove is opened on the outside of the hopper (8), and an annular gear ring (9) is rotatably connected to the annular groove through a bearing. Fixed rods (20) are fixedly connected at equal intervals to the inner wall of the annular gear ring (9), and a support rod (20) is fixedly connected to the end of the fixed rod (20). 1) The bottom of the hopper (8) is integrally provided with a feeding cylinder (16). The support rod (21) is connected to a spiral blade (24) on the outside of a section inside the feeding cylinder (16). The bottom of the feeding cylinder (16) is connected to a receiving pipe (19), and the end of the receiving pipe (19) is connected to a discharge port (30). The bottom of the four columns (2) is provided with an adjustment mechanism (31) for adjusting the X-axis, Y-axis and Z-axis position of the discharge port (30). The outside of the support rod (21) is provided with an anti-segregation guiding mechanism to prevent radial force segregation of the material caused by centrifugal force and gravity during the material dropping process.

2. The bulk material silo unloading and loading system according to claim 1, characterized in that: The adjustment mechanism (31) includes a fixed frame (12), an electric push rod (13), an adjustment seat (14), and a linear guide rail (15). The fixed frame (12) is slidably connected between four columns (2). An electric push rod (13) is fixedly installed on one side wall of the fixed frame (12), and the piston rod end of the electric push rod (13) extends into the fixed frame (12) and is fixedly connected to the adjustment seat (14). The adjustment seat (14) is slidably connected between two corresponding inner walls of the fixed frame (12). A linear guide rail (15) is provided in the adjustment seat (14) along its length direction. The top of the discharge port (30) is fixedly installed in the slider of the linear guide rail (15).

3. The bulk material silo unloading and loading system according to claim 2, characterized in that: The anti-segregation guiding mechanism (33) includes an anti-segregation guiding cone sleeve (34), a rectifying guide vane (36), and an annular turbulence ring (35). The anti-segregation guiding cone sleeve (34) is sleeved on the outside of the support rod (21). The rectifying guide vane (36) is disposed on the inner wall of the anti-segregation guiding cone sleeve (34). The annular turbulence ring (35) is disposed on the outer wall of the anti-segregation guiding cone sleeve (34) and is used to perform axial rectification and radial disturbance mixing of the falling bulk material.

4. The bulk material silo unloading and loading system according to claim 3, characterized in that: A controller (6) is installed on the outside of the fixed base (3). A drive motor (10) is fixedly installed inside the fixed frame (7). A drive gear (11) is fixedly connected to the output shaft end of the drive motor (10). The drive gear (11) and the ring gear (9) are meshed together. An agitator (22) is fixedly connected at equal intervals to the outside of the fixed rod (20) on the outside of the support rod (21). A dispersing rod (23) is provided at equal intervals on the outside of both the agitator (22) and the fixed rod (20). The controller (6) is electrically connected to the drive motor (10).

5. A bulk material silo unloading and loading system according to claim 4, characterized in that: The two ends of the top of the base (1) are fixed with a fixing plate (25) on the side wall of the column (2). The two fixing plates (25) are connected to the base (1) with a lifting screw (26) and a limiting column (29) respectively. The corresponding two side walls of the fixing frame (12) are fixed with lifting blocks (28). The lifting block (28) at one end of the fixing frame (12) is threaded to the outside of the lifting screw (26), and the lifting block (28) at the other end of the fixing frame (12) is slidably connected to the outside of the limiting column (29). The top of the fixing plate (25) is fixed with a servo motor (27), and the output shaft end of the servo motor (27) is fixed with the lifting screw (26).

6. The bulk material silo unloading and loading system according to claim 5, characterized in that: The anti-segregation guiding mechanism (33) is located between the support rod (21) and the spiral blade (24) and is fitted inside the feed cylinder (16). It is used to axially rectify and radially disturb and mix the rotating and falling bulk material to reduce the radial particle size segregation phenomenon of the material during the falling process.

7. A bulk material silo unloading and loading system according to claim 6, characterized in that: The two inner walls of the fixed frame (12) are integrally provided with limit rods (32), and the two ends of the adjusting seat (14) are provided with limit grooves. The limit rods (32) are slidably connected in the limit grooves.

8. The bulk material silo unloading and loading system according to claim 7, characterized in that: A manual valve (17) is installed on the outer side of the bottom end of the feed cylinder (16), and an electric control valve (18) is installed on the outer side of one end of the feed pipe (19).

9. A bulk material silo unloading and loading system according to claim 8, characterized in that: The receiving tube (19) is an elastic flexible tube.

10. A bulk material silo unloading and loading system according to claim 8, characterized in that: The length of the stirring rod (22) is less than the length of the fixed rod (20).

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