A sugar storage system for flat warehouses

Abstract

This utility model discloses a bulk sugar storage system for a flat warehouse, relating to the field of bulk sugar storage technology. It includes a lifting screw conveyor, a distribution screw conveyor, and a spreading screw conveyor. The lifting screw conveyor is longitudinally positioned on the outside of the flat warehouse, with a feed hopper at its bottom and a discharge pipe at its top connecting it to a distribution screw conveyor horizontally positioned on the warehouse roof along the warehouse's length. The distribution screw conveyor has multiple distribution outlets with a main electric gate, each corresponding to a spreading screw conveyor arranged along the warehouse's length. The spreading screw conveyor has multiple discharge ports with individual electric gates along its length, and distance sensors are installed near the discharge ports. Bulk sugar enters through the lifting screw conveyor's feed hopper, is lifted, and then sent through the discharge pipe to the distribution screw conveyor on the warehouse roof, from where it is distributed to the individual spreading screw conveyors within the warehouse. The distance sensors detect the sugar pile height and control the opening and closing of the main and individual electric gates, achieving automated, uniform distribution and integrated warehouse replenishment.

Description

Technical Field

[0001] This utility model belongs to the field of bulk sugar storage technology, specifically relating to a bulk sugar storage system for flat warehouses. Background Technology

[0002] As an important strategic reserve material in my country, bulk sugar is mostly stored in flat warehouses, with a single warehouse having a capacity of several thousand to tens of thousands of tons, resulting in a huge volume of loading and unloading operations. Currently, the loading and unloading of bulk sugar in China is mainly divided into two independent stages: loading and replenishment. The loading stage relies on multiple mobile conveyors working together to transport the bulk sugar into the warehouse and initially form a grain pile. This stage can only complete about 90% of the full capacity. Since the loading height of the bulk sugar flat warehouse is usually 6-8 meters, the existing loading conveyors cannot meet the full capacity requirement. Therefore, the remaining 10% of the loading work needs to be completed through the replenishment stage, where workers operate a replenishment machine from the replenishment port to add bulk sugar to the target height.

[0003] However, the existing bulk sugar warehousing equipment has a very low level of automation. The warehousing and replenishment processes are disconnected, and the replenishment operation relies entirely on manual operation. This not only results in a huge amount of manual work, but also limits the efficiency of manual operation, leading to low overall warehousing efficiency. Furthermore, the replenishment operation requires personnel to operate at heights, posing safety hazards such as falls and material injuries. Manual intervention is also prone to operational errors, affecting the stability of the warehousing operation. At the same time, the existing mobile equipment connection method is prone to problems such as spillage and uneven accumulation of bulk sugar, increasing the workload of subsequent leveling and further reducing operational efficiency.

[0004] In view of the shortcomings of the existing technology, there is an urgent need for a bulk sugar warehouse receiving system that can integrate receiving and replenishing and has a high degree of automation, so as to solve the problems of low efficiency and heavy reliance on manual labor in the existing process. Utility Model Content

[0005] To address the problems of existing technologies, such as the disconnect between bulk sugar receiving and replenishment, high labor costs, low efficiency, environmental pollution from sugar powder, health hazards, and safety risks associated with working at heights, this utility model provides a bulk sugar receiving system for flat warehouses. This system achieves integrated receiving and replenishment, is highly automated, improves efficiency, and ensures uniform material distribution, reducing the workload of subsequent flattening.

[0006] The solution adopted by this utility model to solve its technical problem is: a sugar bulk storage warehouse feeding system, including a lifting screw conveyor, a distributing screw conveyor, and a feeding screw conveyor. The lifting screw conveyor is longitudinally arranged on the outside of the warehouse, and a feeding hopper is provided at its bottom. The distributing screw conveyor is horizontally arranged on the top of the warehouse and along the length of the warehouse. The top outlet of the lifting screw conveyor is connected to the inlet of the distributing screw conveyor through a discharge pipe. Multiple distributing outlets are provided on the distributing screw conveyor, and a main electric gate is installed at each distributing outlet. The system extends along the length of the warehouse. Multiple fabric feeding screw conveyors are arranged in a 10-degree direction. The length of each fabric feeding screw conveyor is adapted to the width of the flat warehouse. The inlet of each fabric feeding screw conveyor is connected to a corresponding distribution outlet. Multiple discharge ports are arranged along the length of each fabric feeding screw conveyor, and electric gates are installed at the discharge ports. Each electric gate is electrically connected to the main electric gate at the corresponding position. A telescopic folding discharge pipe is also connected below each discharge port of the fabric feeding screw conveyor, and a drive component is installed on the fabric feeding screw conveyor to drive the telescopic folding discharge pipe to swing back and forth within a specific angle.

[0007] Furthermore, the driving component includes a servo motor, a swing arm, and a rocker arm. A rotating ring is rotatably mounted on the guide tube of the fabric feeding screw machine. An upper swing arm and a lower swing arm are fixedly connected to the rotating ring. The lower swing arm is connected to the outlet end of the telescopic folding discharge pipe through a horizontally fixed shaft at its lower end. A straight groove is opened through the upper swing arm. The servo motor is mounted on the fabric feeding screw machine, and a rocker arm is fixedly connected to its output end. The push column at the end of the rocker arm is movably inserted and fitted into the straight groove.

[0008] Furthermore, the number of lifting screw conveyors is determined based on the length of the flat warehouse, and the number and position of the feed inlets on the distribution screw conveyor are consistent with the number and position of each lifting screw conveyor.

[0009] Furthermore, the total conveying capacity of the multiple lifting screw machines is the same as the conveying capacity of the distribution screw machine, and the conveying capacity of the distribution screw machine is the same as the total conveying capacity of the multiple fabric feeding screw machines.

[0010] Furthermore, the lifting screw conveyor, the distributing screw conveyor, and the feeding screw conveyor have the same structure, all consisting of a drive motor, a guide pipe, and a screw auger. The screw auger is rotatably mounted inside the guide pipe, and the drive motor is installed at the end of the guide pipe and is connected to the rotating shaft of the screw auger for transmission.

[0011] Furthermore, a distance sensor is installed near each discharge port of the fabric feeding screw conveyor, and the distance sensor is electrically connected to the corresponding sub-electric gate and the main electric gate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model constructs a fully automated conveying system from external material feeding to uniform material distribution inside the warehouse by setting up a layout of lifting screw conveyor, distribution screw conveyor and material distribution screw conveyor. It eliminates the need to separate the material feeding and replenishment processes. The length of the material distribution screw conveyor is adapted to the width of the flat warehouse, and multiple material distribution screw conveyors are arranged along the length of the warehouse to cover the entire area inside the warehouse. With the linkage control of the electric gate, the loose sugar can be directly conveyed to the set height, replacing the traditional manual replenishment operation. This solves the problems of disconnection and low efficiency in the existing process and significantly improves the overall material feeding efficiency. This utility model achieves automated linkage control of sugar pile height detection and gate opening and closing through the electrical connection design of distance sensor with main electric gate and sub-electric gate. It eliminates the need for manual monitoring of sugar pile height and operation of gate, as well as the need for personnel to perform replenishment work at height. This reduces the amount of manpower and human intervention, avoids the safety hazards of working at height, and reduces the impact of operational errors, ensuring the stability and safety of the warehousing operation. This invention uses a drive component to cause a telescopic folding discharge pipe to swing back and forth within a specific angle, so that when the loose sugar falls, it forms a fan-shaped distribution area, which further optimizes the accumulation effect of the loose sugar, reduces the workload of subsequent manual leveling, and further improves the overall efficiency of the operation. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 for Figure 1 A partially enlarged structural diagram; Figure 4 for Figure 2 Enlarged structural diagram at point A; Figure 5 This is a three-dimensional structural diagram of the fabric spiral machine of this utility model; Figure 6 This is a front view structural diagram of the fabric spiral machine of this utility model; Figure 7 This is a side view of the fabric spiral machine of this utility model.

[0014] In the diagram: 1. Flat warehouse; 2. Elevating screw conveyor; 3. Feed hopper; 4. Distributing screw conveyor; 5. Discharge pipe; 6. Spreading screw conveyor; 7. Angle steel; 8. Distribution outlet; 9. Main electric gate; 10. Discharge port; 11. Sub-electric gate; 12. Distance sensor; 13. Telescopic folding discharge pipe; 14. Rotary ring; 15. Upper swing arm; 16. Straight groove; 17. Push column; 18. Rocker arm; 19. Servo motor; 20. Lower swing arm; 21. Shaft; 22. Rotary bearing. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please see Figure 1-7 This utility model provides a technical solution for a bulk sugar warehouse receiving system: Example

[0017] like Figure 1-7 As shown, the bulk sugar warehouse loading system provided in this embodiment includes a lifting screw conveyor 2, a distributing screw conveyor 4, and a feeding screw conveyor 6. The components work together to realize the automated loading of bulk sugar, effectively solving the problems of large manual labor and low efficiency in the prior art.

[0018] like Figure 1 and Figure 2 As shown, the lifting screw conveyors 2 are longitudinally arranged and installed on the outside of the flat warehouse 1. The number of these conveyors needs to be reasonably determined according to the actual length of the flat warehouse 1 to ensure that the warehousing efficiency requirements of flat warehouses with different capacities can be met. A feed hopper 3 is fixedly installed at the bottom of the lifting screw conveyor 2, through which loose sugar can smoothly enter the lifting screw conveyor 2 and be lifted upwards. The distribution screw conveyor 4 is horizontally mounted on the top of the flat warehouse 1, located to one side of the lifting screw conveyor, and its extension direction is consistent with the length direction of the flat warehouse 1. The distribution screw conveyor 4 is fixed to the top structure of the warehouse by angle steel brackets to ensure installation stability. The number and position of the feed inlets on the distribution screw conveyor 4 correspond one-to-one with the number and position of each lifting screw conveyor 2, and the top outlet of the lifting screw conveyor 2 is sealed to the feed inlet of the distribution screw conveyor 4 through the discharge pipe 5, so that the loose sugar conveyed by each lifting screw conveyor 2 can accurately enter the distribution screw conveyor 4.

[0019] Multiple distribution outlets 8 are spaced apart along the length of the distribution screw conveyor 4. Each distribution outlet 8 is equipped with a main electric gate 9, which controls the opening and closing of the distribution outlet 8. Multiple feeding screw conveyors 6 are evenly arranged along the length of the flat warehouse 1. The spacing between the feeding screw conveyors is determined according to the size of the flat warehouse, ranging from 2 to 4 meters. The feeding screw conveyors 6 are fixedly installed on the roof of the flat warehouse 1 using angle steel 7. The angle steel 7 improves the installation strength of the feeding screw conveyors 6, ensuring that they will not shift due to material impact or their own weight during long-term operation. The length of the feeding screw conveyors 6 is adapted to the width of the flat warehouse 1, allowing them to cover the entire area of ​​the flat warehouse 1 in the width direction. The inlet of each feeding screw conveyor 6 is connected to a corresponding distribution outlet 8 via a pipe, achieving precise distribution of sugar from the distribution screw conveyor 4 to each feeding screw conveyor 6.

[0020] according to Figure 3 and Figure 4As shown, the feeding screw conveyor 6 has multiple discharge ports 10 evenly distributed along its length. Each discharge port 10 is equipped with a separate electric gate 11, and each separate electric gate 11 is electrically connected to the corresponding main electric gate 9, enabling linkage control of the gates and ensuring the continuity of the operation process. A distance sensor 12 is installed near each discharge port 10 of the feeding screw conveyor 6. The distance sensor 12 is electrically connected to the corresponding separate electric gate 11 and the main electric gate 9. The distance sensor 12 can detect the height of the sugar pile below it in real time, and realizes automated gate control through electrical signal transmission. By capturing the sugar pile height signal using the distance sensor 12, the signal is converted into an electrical command and transmitted to the gate control module, thereby controlling the opening and closing state of the gate. No manual monitoring or operation is required, effectively reducing manual intervention.

[0021] The lifting screw conveyor 2, the distributing screw conveyor 4, and the feeding screw conveyor 6 have identical structures, each consisting of a drive motor, a guide pipe, and a spiral auger. The spiral auger is rotated and housed inside the guide pipe, while the drive motor is fixedly mounted at the end of the guide pipe and connected to the rotating shaft of the spiral auger. The drive motor drives the spiral auger to rotate at high speed within the guide pipe, achieving directional conveying of the loose sugar through the pushing action of the spiral auger blades. This structural design features high conveying efficiency and low material loss. Furthermore, the total conveying capacity of the multiple lifting screw conveyors 2 is the same as that of the distributing screw conveyor 4, and the conveying capacity of the distributing screw conveyor 4 is also consistent with the total conveying capacity of the multiple feeding screw conveyors 6. This prevents the loose sugar from accumulating or experiencing material shortages during conveying, ensuring the stable operation of the entire warehousing system and improving operational efficiency.

[0022] The specific workflow of this embodiment is as follows: Before the operation begins, according to the capacity of the flat warehouse 1 and the demand for filling, each drive motor is started, and the lifting screw 2, the distribution screw 4, and the spreading screw 6 enter the working state. The loose sugar enters the lifting screw 2 through the feed hopper 3. Under the pushing action of the spiral auger inside the lifting screw 2, the loose sugar is conveyed upward along the guide pipe and enters the distribution screw 4 through the discharge pipe 5. The loose sugar entering the distribution screw 4 is evenly distributed along the length direction under the action of the spiral auger inside. At this time, the main electric gate 9 of the spreading screw 6 is in the open state, and the loose sugar enters the corresponding spreading screw 6 through the distribution outlet 8. The loose sugar entering each spreading screw 6 is conveyed to each discharge port 10 along its length direction under the pushing action of the spiral auger. At this time, all the sub-electric gates 11 on the spreading screw 6 are in the open state, and the loose sugar falls evenly from each discharge port 10 into the flat warehouse 1.

[0023] When the distance sensor 12 detects that the height of the sugar pile below a certain discharge port 10 has reached a preset value, the distance sensor 12 immediately sends an electrical signal to the corresponding electric gate 11 to control the electric gate 11 to close. The sugar continues to flow out from the unclosed electric gate 11 on the feeding screw conveyor 6. As the sugar continues to fall, the flat warehouse 1 area corresponding to the feeding screw conveyor 6 is gradually filled. When all the electric gates 11 in the area reach the preset sugar pile height, the main electric gate 9 corresponding to the feeding screw conveyor 6 receives the linkage signal and closes. The sugar continues to be fed through the unclosed distribution outlet.

[0024] After filling all the areas corresponding to the feeding auger 6 according to the above process, the bulk sugar in the flat warehouse 1 is basically full. At this point, simple manual leveling can be performed according to actual storage needs to complete the entire warehousing process. Through the coordinated and automated operation of the above-mentioned components, the warehousing and replenishment are integrated, eliminating the need for manual replenishment and significantly reducing labor costs. At the same time, the bulk sugar is transported in a closed feed pipe and pipeline, effectively reducing the sugar powder concentration in the space, avoiding environmental pollution, and reducing the harm of sugar powder to the health of workers. Example

[0025] This embodiment is a further optimization based on Embodiment 1. The technical content already described in Embodiment 1 will not be repeated. The improvement points of this embodiment are as follows: Figure 5 As shown, a telescopic folding discharge pipe 13 is fixedly connected below each discharge port 10 of the fabric spiral machine 6, and a drive component is installed on the fabric spiral machine 6 to drive the telescopic folding discharge pipe 13 to swing back and forth within a specific angle. This structure further improves the uniformity of the sugar spreading fabric and reduces the amount of manual leveling work in the later stage.

[0026] The driving components include a servo motor 19, a swing arm, and a rocker arm 18. A rotating ring 14 is mounted on the guide tube of the feeding screw conveyor 6. An upper swing arm 15 and a lower swing arm 20 are fixedly connected to the rotating ring 14 in the vertical direction. The upper swing arm 15 and the lower swing arm 20 are symmetrically distributed to ensure balanced force. A shaft 21 is horizontally fixedly installed at the lower end of the lower swing arm 20. The shaft 21 is connected to the outlet end of the telescopic folding discharge pipe 13 through a rotating bearing 22 fixed on the telescopic folding discharge pipe, so that the swing of the lower swing arm 20 can directly drive the telescopic folding discharge pipe 13 to move synchronously. A straight groove 16 is cut through the upper swing arm 15 along its length. A servo motor 19 is fixedly mounted on the guide tube of the feeding screw conveyor 6 via a mounting base. A rocker arm 18 is fixedly connected to the output end of the servo motor 19. A pusher 17 is fixedly installed at the end of the rocker arm 18 away from the servo motor 19, and the pusher 17 is movably inserted into the straight groove 16, forming a sliding fit structure. The length of the rocker arm is calculated and designed to allow the shaft to swing back and forth at 60°, thereby driving the outlet of the telescopic folding discharge pipe to swing left and right by 30°, making the sugar more evenly dispersed during discharge. The length of the shaft can cover and connect 4-6 nearby telescopic folding discharge pipes, allowing one set of drive components to drive 4-6 telescopic folding discharge pipes to swing back and forth. This reduces the number of drive components on the feeding screw conveyor, lowering costs.

[0027] The workflow of this embodiment is as follows: When loose sugar enters the telescopic folding discharge pipe 13 from the outlet 10, the servo motor 19 drives the rocker arm 18 to perform a circular motion around its output shaft. The pusher 17 at the end of the rocker arm 18 slides back and forth in the straight groove 16, while simultaneously pushing the upper rocker arm 15 to swing back and forth around the central axis of the rotating ring 14. The swing of the upper rocker arm 15 drives the rotating ring 14 to rotate back and forth synchronously on the guide pipe. The rotating ring 14 then drives the lower rocker arm 20 to swing back and forth. The lower rocker arm 20 drives the telescopic folding discharge pipe 13 to swing back and forth within a set angle range through the shaft 21. Under the action of gravity, the loose sugar flows out from the outlet of the telescopic folding discharge pipe 13. As the discharge pipe swings, a fan-shaped distribution area is formed, which can make the distribution of loose sugar in the flat warehouse 1 more uniform, greatly reduce the height difference caused by the accumulation of loose sugar, reduce the workload of subsequent manual leveling, and further improve the automation level and overall efficiency of the warehouse operation.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bulk sugar silo in-feed system comprising an elevator screw (2), a distribution screw (4) and a distribution screw (6), characterized in that: The lifting screw conveyor (2) is longitudinally arranged outside the flat warehouse (1), and a feed hopper (3) is provided at its bottom. The distribution screw conveyor (4) is horizontally arranged at the top of the flat warehouse (1) and along the length of the flat warehouse (1). The top outlet of the lifting screw conveyor (2) is connected to the inlet of the distribution screw conveyor (4) through a discharge pipe (5), and multiple distribution outlets (8) are provided on the distribution screw conveyor (4). A main electric gate (9) is installed at the distribution outlet (8). Multiple fabric spreading screw conveyors (6) are arranged along the length of the flat warehouse (1). The length of the fabric spreading screw conveyor (6) is... The width of the flat warehouse (1) is adapted to the inlet of each fabric spiral machine (6) and a corresponding distribution outlet (8) is connected. Multiple discharge ports (10) are arranged along the length of the fabric spiral machine (6), and a sub-electric gate (11) is installed at the discharge port (10). Each sub-electric gate (11) is electrically connected to the corresponding main electric gate (9). A telescopic folding discharge pipe (13) is also connected below each discharge port (10) of the fabric spiral machine (6), and a drive component is installed on the fabric spiral machine (6) to drive the telescopic folding discharge pipe (13) to swing back and forth within a specific angle.

2. A flat warehouse system for bulk sugar according to claim 1 wherein: The driving components include a servo motor (19), a swing arm, and a rocker arm (18). A rotating ring (14) is rotatably mounted on the guide tube of the fabric feeding screw machine (6). An upper swing arm (15) and a lower swing arm (20) are fixedly connected on the upper and lower parts of the rotating ring (14). The lower swing arm (20) is connected to the outlet end of the telescopic folding discharge pipe (13) through a horizontally fixed shaft (21) at its lower end. A straight groove (16) is opened through the upper swing arm (15). The servo motor (19) is mounted on the fabric feeding screw machine (6), and a rocker arm (18) is fixedly connected to its output end. The push column (17) at the end of the rocker arm (18) is movably inserted and mounted in the straight groove (16).

3. The flat warehouse system according to claim 1, wherein: The number of lifting screw machines (2) is determined according to the length of the flat warehouse (1), and the number and position of the feed inlets on the distribution screw machine (4) are consistent with the number and position of each lifting screw machine (2).

4. A flat warehouse system for bulk sugar according to claim 3, wherein: The total conveying capacity of the multiple lifting screw machines (2) is the same as that of the distribution screw machine (4), and the conveying capacity of the distribution screw machine (4) is the same as that of the multiple fabric feeding screw machines (6).

5. The flat system according to claim 1, wherein: The lifting screw machine (2), the distributing screw machine (4), and the feeding screw machine (6) have the same structure, all consisting of a drive motor, a guide pipe, and a screw auger. The screw auger is rotated and fitted inside the guide pipe, and the drive motor is installed at the end of the guide pipe and is connected to the rotating shaft of the screw auger.

6. A flat system for bulk sugar warehouse according to claim 1, characterized in that: A distance sensor (12) is installed near each discharge port (10) of the fabric feeding screw conveyor (6), and the distance sensor (12) is electrically connected to the corresponding electric gate (11) and the main electric gate (9).

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