Large-scale storage silo capable of intelligently monitoring and remotely controlling feeding and discharging of materials

Abstract

The invention discloses a large-scale storage silo capable of intelligently monitoring and remotely controlling material feeding and discharging, and relates to the field of large-scale storage of powdery and granular solid materials. Data information is accurately collected in real time by means of various detection sensors installed inside and outside the silo and transmitted to the PLC control system in time, and then various electromagnetic valves distributed on the silo pipeline are controlled by the PLC control system. The system can realize remote on-line monitoring and automatic accurate control on links of warehousing, delivery, detection, control, storage environment adjustment and the like of materials, greatly improves the automation level of material delivery and delivery, improves the quality of material storage, eliminates errors or accidents caused by manual misoperation, and greatly reduces the management cost; a two-stage discharging form is adopted, so that the problem that materials are unevenly stacked in the silo can be effectively solved, and the silo is prevented from toppling over; and the vibration motor is additionally arranged on the outer wall of the conical hopper, so that the possibility of blockage of the discharge port due to hardening of stored materials can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of large-scale storage of powdery and granular solid materials, and more specifically to a large-scale intelligent monitoring and remote control storage silo for materials entering and exiting. The present invention is suitable for large-scale storage of powdery and granular raw materials, slag, etc. before and after production in processes such as port material loading and unloading, metal smelting and coking, and is particularly suitable for the storage of basic raw materials such as cereals, chemical solid raw materials, and construction cement. Background Art

[0002] At present, large-scale silos for storing powdery and granular solid materials generally have two structural forms: one is the silo foundation directly landing type, that is, the materials in the storage silo are discharged along the cone bucket buried underground and through the pipeline. The other is the base frame platform support type, that is, the base plate of the storage silo is placed on a base frame platform with a certain height, and the materials in the storage silo are discharged into the material transport vehicle located on the ground through the discharge port along the cone funnel connected to the bottom of the silo under the action of gravity. The discharge of the above two types of silos adopts the silo central axis discharge form, that is, the discharge holes are arranged on the central axis of the silo. In addition, for large or extra-large storage silos, due to the different types of stored materials, the requirements for storage conditions are also quite different. For example, granular grain raw grains have higher requirements for storage temperature and humidity control, and ventilation is required at intervals. Preventive treatment of insect eggs and larvae is done according to the season; while slag particles, coal powder, iron powder, cement and various chemical powder industrial raw materials have higher requirements for storage humidity control.

[0003] The following is a more detailed summary of the shortcomings of the two main types of large storage silos in actual use that need to be improved and perfected according to the specific types of stored materials: 1. Various types of granular raw grains: The raw grains enter the silo through the center of the silo top and are always piled up in a cone from bottom to top. Because the raw grain particles are of different sizes, and under the action of collision and pressure, the smaller particles are concentrated in the central area, while the larger particles roll along the cone toward the center of the silo and toward the outer edge, resulting in different pressures and air permeability in different parts of the silo. The central area is very easy to stick into blocks due to changes in pressure and humidity, blocking the central discharge hole; 2. Various types of coal powder, iron powder, cement and various types of chemical powder industrial raw materials: Although the pressure in each area of ​​the storage silo is basically the same under static conditions, when the humidity in the silo is not well controlled, the powdered materials are very likely to clump and adhere to the silo wall. When the materials in the central area are unloaded, a large amount of materials adhere to certain areas of the silo wall, resulting in uneven distribution of materials on the silo wall in a certain area. When reaching a certain amount, the entire silo may tip to one side, causing serious accidents; 3. For several storage silo clusters in ports and material transshipment, different materials require different storage environments. Currently, most storage silos use manual operations for opening and closing of various valves for feeding and discharging materials and adjusting the process environment. This not only causes a large workload for the silo cluster, but also easily leads to material losses due to incorrect operations. Summary of the invention

[0004] The present invention is aimed at the deficiencies in the above-mentioned prior art and provides a large-scale intelligent monitoring and remote control storage silo for materials entering and exiting. The present invention can realize remote online monitoring and automatic and precise control of the material entry and exit, detection, control, storage environment adjustment and other links, greatly improve the automation level of material entry and exit, improve the quality of material storage, eliminate mistakes or accidents caused by manual misoperation, and greatly reduce management costs; the use of two-stage discharge can effectively improve the problem of uneven accumulation of materials in the silo and avoid accidents of silo dumping; adding a vibration motor to the outer wall of the cone bucket can greatly reduce the possibility of clogging the discharge port due to the compaction of stored materials; the use of material ranging electronic radar to monitor the height of the coaxial material in the silo in real time can timely adjust and ensure that the height of the material in the silo in the inner cavity of the storage silo is basically consistent, and can also greatly reduce the possibility of material adhesion on the inner wall of the silo.

[0005] The purpose of the present invention can be achieved by the following technical measures: A large-scale intelligent monitoring and remote control storage silo for materials entering and exiting of the present invention comprises a frame support platform (on the one hand, the frame support platform provides support for the entire columnar silo body; on the other hand, it also provides the required ground drop height, so that the materials discharged from the storage silo can be smoothly loaded into the material transport vehicle located on the ground), a columnar silo body (used for storing materials and providing a sealed storage space) which is seated on the frame support platform and is composed of a base plate, a columnar silo, and a silo cone top connected in sequence from bottom to top, and a plurality of internal discharge hoppers fixed on the bottom surface of the middle part of the base plate in a circular array manner and respectively corresponding to each drop hole on the base plate (The inner discharge hopper is used as a first-stage discharge hopper, and cooperates with the outer discharge hopper to form a two-stage discharge. The two-stage discharge form can effectively improve the problem of uneven accumulation of materials in the silo, thereby avoiding the accident of silo dumping), the outer discharge hopper fixed on the bottom surface of the edge of the base plate and wrapped around all the inner discharge hoppers to form a sealed receiving cavity (the outer discharge hopper is a large second-stage discharge hopper, which is used to collect the materials discharged by each inner discharge hopper as the first-stage discharge hopper and then unload them to the truck through a central discharge port at the bottom; the outer discharge hopper and the inner discharge hopper cooperate to form a two-stage discharge. The two-stage discharge form can effectively improve the problem of uneven accumulation of materials in the silo , thereby avoiding the accident of silo dumping); internal discharge solenoid valves are installed at the discharge pipes of all internal discharge hoppers (under the control of the PLC control device, the internal discharge solenoid valves are automatically opened or closed as needed to realize the flexible switching of the internal discharge hopper between the discharge state and the non-discharge state), and internal hopper vibration motors are installed on the outer walls of all internal discharge hoppers (to avoid particle partitioning of granular materials in the silo, reduce material adhesion in the central area of ​​the silo, and effectively reduce the agglomeration or adhesion of chemical powder on the silo wall due to moisture, which can greatly reduce the possibility of clogging the discharge port due to compaction of stored materials, ensuring a smoother material discharge process ), an external discharge solenoid valve and a telescopic loading and unloading device are installed at the discharge pipe of the external discharge hopper (the external discharge solenoid valve and the telescopic loading and unloading device are automatically opened or closed as needed under the control of the PLC control device, so as to realize the flexible switching of the external discharge hopper between the discharge state and the non-discharge state), and an external hopper vibration motor is installed on the outer wall of the external discharge hopper (to avoid the generation of particle partitioning, agglomeration or adhesion on the hopper wall of the external discharge hopper after the materials discharged from each internal discharge hopper as the first-level discharge hopper converge to the external discharge hopper, which can greatly reduce the possibility of clogging the discharge port due to the compaction of stored materials, and ensure that the materials are discharged smoothly from the external discharge hopper);The silo cone top is equipped with a material ranging electronic radar, a pressure sensor, a negative pressure air intake solenoid valve, a cold air intake solenoid valve, a material silo inlet solenoid valve, a positive pressure exhaust solenoid valve, a humidity sensor, and a temperature sensor, which are connected to the inner cavity of the cylindrical silo. The number of the material ranging electronic radars is the same as the number of the internal unloading hoppers, and they are arranged in a one-to-one corresponding coaxial line (the material ranging electronic radar is used to detect whether the material in the silo corresponding to the position area of ​​the corresponding axis is at a high or low position, and the information is fed back to the PLC control device in a timely manner, and then the PLC control device controls the opening or closing The internal unloading solenoid valve corresponding to the internal unloading hopper can timely adjust and ensure that the height of the materials in the storage silo is basically the same, thereby greatly reducing the possibility of material adhesion on the inner wall of the silo); all material ranging electronic radars, pressure sensors, negative pressure air intake solenoid valves, cold air intake solenoid valves, material inlet solenoid valves, positive pressure exhaust solenoid valves, humidity sensors, temperature sensors, internal unloading solenoid valves, internal hopper vibration motors, external unloading solenoid valves, telescopic loading and unloading devices, and external hopper vibration motors are connected to the PLC control device with electrical signals. ;

[0006] In the present invention, the upper outlet end of the positive pressure exhaust solenoid valve is connected to a dust collector (for purifying exhaust gas from the bin) which is in communication with the atmosphere.

[0007] The upper opening diameter of the inner discharge hopper in the present invention is equal to the diameter of the material drop hole in the base plate (to ensure seamless connection at the connection point to avoid material leakage or jamming).

[0008] In the present invention, the telescopic loading and unloading device is in a normal discharging state, and the PLC control device controls the inner discharging solenoid valve, the inner hopper vibration motor, the outer discharging solenoid valve, and the outer hopper vibration motor to start working at the same time (ensuring that both the two-stage discharging hoppers are in the discharging state, ensuring that the discharging channel is normally open, and ensuring that the materials in the warehouse are smoothly discharged and loaded), and according to the feedback information of the pressure sensor, when air replenishment is required, the PLC control device promptly controls the opening of the negative pressure air intake solenoid valve to allow external air to enter the inner cavity of the storage silo (automatically and timely adjusts the air pressure in the inner cavity of the storage silo, so that the air pressure in the inner cavity of the storage silo is stable within a certain pressure range, ensuring that the storage silo When the telescopic loader and unloader is in the closed state, the PLC control device controls the inner unloading solenoid valve, the inner hopper vibration motor, the outer unloading solenoid valve, and the outer hopper vibration motor to stop working at the same time (ensuring that the discharge channel is closed, so that both the two-stage discharge hoppers are in the storage state, and the materials in the silo are not discharged outside), and the PLC control device controls the closing of the negative pressure air intake solenoid valve in time according to the feedback information of the pressure sensor (at this time, the air pressure in the inner cavity of the storage silo has been stabilized within a certain pressure range, and closing the negative pressure air intake solenoid valve ensures the stability of the pressure in the storage silo, providing a normal storage environment for the materials in the storage silo).

[0009] When the material ranging electronic radar located just above the inner discharge hopper detects that the material in the bin in the corresponding position area of ​​the axis is at a high level, the PLC control device controls the opening of the inner discharge solenoid valve corresponding to the inner discharge hopper on the axis (so that the inner discharge hopper corresponding to the axis starts to discharge, the height of the material in the bin on the axis will decrease and gradually approach the average height of the material in the bin, so that the height of the material in the bin in the inner cavity of the storage silo can be adjusted in time to ensure that it is basically the same, thereby greatly reducing the possibility of material adhesion to the inner wall of the silo); the material ranging electronic radar detects that When the material in the silo corresponding to the axis position area is at a low level, the PLC control device controls the closing of the internal unloading solenoid valve of the corresponding internal unloading hopper on the axis (in this way, the corresponding internal unloading hopper on the axis is switched to a non-discharging state, and the height of the material in the silo on the axis will not continue to decrease. As other materials in the silo at a high position continue to be unloaded, the height of the material in the silo corresponding to the axis will gradually approach the average height of the material in the silo, so that the height of the material in the silo in the inner cavity of the storage silo can be adjusted in time to ensure that it is basically the same, thereby greatly reducing the possibility of material adhesion to the inner wall of the silo).

[0010] The silo entry solenoid valve described in the present invention is automatically opened by the PLC control device when materials need to enter the silo (the material silo entry solenoid valve is automatically opened or closed as needed under the control of the PLC control device, realizing flexible switching between the material entering the silo state and the non-entering the silo state), and the material enters the inner cavity of the columnar silo to replenish the material in the silo; and when exhaust is required according to the feedback information of the pressure sensor, the PLC control device promptly controls the opening of the positive pressure exhaust solenoid valve and the dust collector, and the positive pressure gas in the storage silo is discharged into the atmosphere (ensuring the stability of the pressure in the storage silo and providing a normal storage environment for the materials in the storage silo).

[0011] The design principle of the present invention is as follows: The present invention uses various detection sensors installed inside and outside the silo to collect data information in real time and accurately, and transmits it to the PLC control system in time. The PLC control system then automatically and remotely accurately controls various solenoid valves distributed on the silo pipeline, thereby realizing remote online monitoring and automatic and accurate control of material entry, exit, detection, control, storage environment adjustment and other links, greatly improving the automation level of material entry and exit, improving the quality of material storage, eliminating mistakes or accidents caused by manual misoperation, and greatly reducing management costs. The present invention adopts a two-stage discharging form to replace the traditional one-stage discharging form. The one-stage discharging form refers to a plurality of identical discharging hoppers arranged in an array in a uniformly distributed manner at the bottom of the silo, and the two-stage discharging form of the present invention refers to a large outer discharging hopper that wraps all the inner discharging hoppers to form a sealed material receiving cavity and is installed as a secondary discharging hopper under each inner discharging hopper as the first-stage discharging hopper. The outer discharging hopper is used to collect the materials discharged from each first-stage discharging hopper and then unload them into trucks through a central discharging port at the bottom of the secondary discharging hopper. In this way, the inner discharging hopper and the outer discharging hopper cooperate to form a two-stage discharging, which can effectively improve the problem of uneven accumulation of materials in the silo, thereby avoiding the accident of silo dumping. At the same time, the present invention also adds vibration motors to the outer walls of the inner discharge hopper and the outer discharge hopper, and starts each vibration motor at the same time under the control of PLC during discharge, which can effectively avoid the generation of particle partitions of granular materials in the silo or hopper, reduce the adhesion of materials in the central area of ​​the silo or hopper, and effectively reduce the caking or adhesion of chemical powder on the silo wall or hopper wall due to moisture, which can greatly reduce the possibility of blocking the discharge port due to the compaction of stored materials, and ensure that the material discharge process is smoother. In addition, the silo cone top in the present invention is also arranged with a corresponding number of material ranging electronic radars that are vertically coaxial with each inner discharge hopper as a first-level discharge hopper. The material ranging electronic radar is used to detect whether the material in the silo at the corresponding position of the corresponding axis is at a high or low position, and timely feedback the information to the PLC control device, and then the PLC control device controls the opening or closing of the inner discharge solenoid valve of the corresponding inner discharge hopper, so as to timely adjust and ensure that the height of the material in the silo in the inner cavity of the storage silo is basically the same, which can also greatly reduce the possibility of material adhesion on the inner wall of the silo.

[0012] The beneficial technical effects of the present invention are as follows: The present invention can realize remote online monitoring and automatic precise control of material entry, exit, detection, control, storage environment adjustment and other links, greatly improving the automation level of material entry and exit, improving the quality of material storage, eliminating mistakes or accidents caused by manual misoperation, and greatly reducing management costs; the use of two-stage discharge can effectively improve the problem of uneven accumulation of materials in the silo and avoid accidents of silo dumping; adding a vibration motor to the outer wall of the cone bucket can greatly reduce the possibility of clogging the discharge port due to compaction of stored materials; the use of material ranging electronic radar to monitor the height of the coaxial material in the silo in real time can timely adjust and ensure that the height of the material in the silo in the inner cavity of the storage silo is basically consistent, and can also greatly reduce the possibility of material adhesion to the inner wall of the silo. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the structural front view of the present invention.

[0014] Figure 2 It is a top view of the present invention.

[0015] Figure 3 It is a longitudinal sectional view of the present invention (i.e. Figure 2 BB section view in Figure 1).

[0016] Figure 4 It is an internal axonometric perspective view of the present invention.

[0017] Figure 5 for Figure 4 A local enlarged schematic diagram of point D in the figure.

[0018] Figure 6 It is a perspective view of the appearance of the present invention.

[0019] Description of the part numbers in the figure: 1. Rack support platform, 2. Telescopic loader and unloader, 3. External unloading solenoid valve, 4. External hopper vibration motor, 5. External unloading hopper, 6. Base plate, 6-1, drop hole, 7. Columnar silo, 8. Material in the silo, 9. Silo cone top, 10. Material ranging electronic radar, 11. Pressure sensor, 12. Negative pressure air intake solenoid valve, 13. Cold air intake solenoid valve, 14. Material inlet solenoid valve, 15. Positive pressure exhaust solenoid valve, 16. Humidity sensor, 17. Temperature sensor, 18. Internal unloading hopper, 19. Internal hopper vibration motor, 20. Dust collector, 21. Internal unloading solenoid valve. DETAILED DESCRIPTION

[0020] The present invention will be further described in conjunction with the following drawings and embodiments (see Figure 1 to Figure 6 ): A large-scale intelligent monitoring and remote control storage silo for materials entering and exiting of the present invention comprises a frame support platform 1 (the frame support platform 1 provides support for the entire columnar silo body on the one hand; on the other hand, it also provides the required ground drop height, so that the materials discharged from the storage silo can be smoothly loaded into the material transport vehicle located on the ground), a columnar silo body (used for storing materials and providing a sealed storage space) which is seated on the frame support platform and is composed of a base plate 6, a columnar silo 7, and a silo cone top 9 connected in sequence from bottom to top, and a plurality of internal discharge hoppers 18 ( The inner discharge hopper 18 serves as a first-stage discharge hopper, and cooperates with the outer discharge hopper 5 to form a two-stage discharge. The two-stage discharge form can effectively improve the problem of uneven accumulation of materials in the silo, thereby avoiding the accident of silo dumping). The outer discharge hopper 5 is fixed on the bottom surface of the edge of the base plate and wraps all the inner discharge hoppers to form a sealed material receiving cavity (the outer discharge hopper 5 is a large-scale second-stage discharge hopper, which is used to collect the materials discharged by each inner discharge hopper 18 as the first-stage discharge hopper and then unload them to trucks through a central discharge port at the bottom; the outer discharge hopper 5 cooperates with the inner discharge hopper 18 to form a two-stage discharge. The two-stage discharge form can effectively improve the problem of uneven accumulation of materials in the silo, thereby avoiding the accident of silo dumping). To avoid the accident of silo tipping; internal discharge solenoid valves 21 are installed at the discharge pipes of all internal discharge hoppers 18 (under the control of the PLC control device, the internal discharge solenoid valves 21 are automatically opened or closed as needed to realize the flexible switching of the internal discharge hopper 18 between the discharge state and the non-discharge state), and internal hopper vibration motors 19 are installed on the outer walls of all internal discharge hoppers 18 (to avoid particle partitioning of granular materials in the silo, reduce material adhesion in the central area of ​​the silo, and effectively reduce the agglomeration or adhesion of chemical powder on the silo wall due to moisture, which can greatly reduce the possibility of clogging the discharge port due to compaction of stored materials, ensuring a smoother material discharge process) , an external discharge solenoid valve 3 and a telescopic loading and unloading device 2 are installed at the discharge pipe mouth of the external discharge hopper 5 (the external discharge solenoid valve 3 and the telescopic loading and unloading device 2 are automatically opened or closed as needed under the control of the PLC control device, so as to realize the flexible switching of the external discharge hopper 5 between the discharge state and the non-discharge state), and an external hopper vibration motor 4 is installed on the outer wall of the external discharge hopper 5 (to prevent the particles from being partitioned, agglomerated or adhered on the hopper wall of the external discharge hopper after the materials discharged from each internal discharge hopper 18 as the primary discharge hopper converge to the external discharge hopper 5, which can greatly reduce the possibility of clogging the discharge port due to the compaction of the stored materials, and ensure that the materials are discharged smoothly from the external discharge hopper 5);The silo cone top 9 is equipped with a material ranging electronic radar 10, a pressure sensor 11, a negative pressure air intake solenoid valve 12, a cold air intake solenoid valve 13, a material inlet solenoid valve 14, a positive pressure exhaust solenoid valve 15, a humidity sensor 16, and a temperature sensor 17, which are connected to the inner cavity of the columnar silo 7. The number of the material ranging electronic radars 10 is the same as the number of the internal discharge hopper 18, and they are arranged in a one-to-one corresponding coaxial line (the material ranging electronic radar 10 is used to detect whether the material 8 in the silo corresponding to the position area of ​​the corresponding axis is at a high or low position, and the information is fed back to the PLC control device in time, and then the PLC control device controls the opening or closing of the corresponding axis. The internal discharge solenoid valve 21 of the internal discharge hopper 18 can timely adjust and ensure that the height of the material 8 in the storage silo is basically the same, thereby greatly reducing the possibility of material adhesion on the inner wall of the silo); all material ranging electronic radars 10, pressure sensors 11, negative pressure air intake solenoid valves 12, cold air intake solenoid valves 13, material inlet solenoid valves 14, positive pressure exhaust solenoid valves 15, humidity sensors 16, temperature sensors 17, internal discharge solenoid valves 21, internal hopper vibration motors 19, external discharge solenoid valves 3, telescopic loading and unloading devices 2, and external hopper vibration motors 4 are all connected to the PLC control device by electrical signals. ;

[0021] In the present invention, the upper outlet end of the positive pressure exhaust solenoid valve 15 is connected to a dust collector 20 (for purifying the exhaust gas from the bin) which is in communication with the atmosphere.

[0022] The upper diameter of the inner discharge hopper 18 in the present invention is equal to the diameter of the material drop hole 6 - 1 in the base plate 6 (to ensure seamless connection at the connection point to avoid material leakage or jamming).

[0023] In the present invention, the telescopic loading and unloading device 2 is in a normal discharging state, and the PLC control device controls the inner discharging solenoid valve 21, the inner hopper vibration motor 19, the outer discharging solenoid valve 3, and the outer hopper vibration motor 4 to start working at the same time (ensuring that both the two-stage discharging hoppers are in the discharging state, ensuring that the discharging channel is normally open, and ensuring that the materials in the warehouse are smoothly discharged and loaded), and according to the feedback information of the pressure sensor 11, when air replenishment is required, the PLC control device promptly controls the opening of the negative pressure air intake solenoid valve 12 to allow external air to enter the inner cavity of the storage silo (automatically and timely adjusts the air pressure in the inner cavity of the storage silo, so that the air pressure in the inner cavity of the storage silo is stable within a certain pressure range, ensuring the storage silo Safe and normal storage environment); when the telescopic loader unloader 2 is in the closed state, the PLC control device controls the internal unloading solenoid valve 21, the internal hopper vibration motor 19, the external unloading solenoid valve 3, and the external hopper vibration motor 4 to stop working at the same time (ensuring that the discharge channel is closed, so that both the two-stage discharge hoppers are in the storage state, and the materials in the silo are not discharged outside), and the PLC control device controls the closing of the negative pressure air intake solenoid valve 12 in time according to the feedback information of the pressure sensor 11 (at this time, the air pressure in the inner cavity of the storage silo has been stabilized within a certain pressure range, and closing the negative pressure air intake solenoid valve 12 ensures that the pressure in the storage silo is stable, providing a normal storage environment for the materials in the storage silo).

[0024] In the present invention, when the material ranging electronic radar 10 located directly above the inner discharge hopper 18 detects that the material 8 in the bin in the corresponding position area of ​​the axis is at a high level, the PLC control device controls the opening of the inner discharge solenoid valve 21 corresponding to the inner discharge hopper 18 on the axis (so that the inner discharge hopper 18 corresponding to the axis starts to discharge, the height of the material 8 in the bin on the axis will decrease, gradually approaching the average height of the material 8 in the bin, and timely adjust and ensure that the height of the material 8 in the bin in the inner cavity of the storage silo is basically the same, thereby greatly reducing the possibility of the material sticking to the inner wall of the silo); the material ranging electronic radar 10 detects When the material 8 in the silo corresponding to the position area of ​​the axis is at a low level, the PLC control device controls the closing of the internal unloading solenoid valve 21 of the corresponding internal unloading hopper 18 on the axis (in this way, the corresponding internal unloading hopper 18 on the axis is switched to a non-discharging state, and the height of the material 8 in the silo on the axis will not continue to decrease, and as the materials 8 in other high positions in the silo continue to be unloaded, the height of the material 8 in the silo corresponding to the axis will gradually tend to the average height of the material 8 in the silo, so that the height of the material 8 in the silo in the inner cavity of the storage silo can be adjusted in time to ensure that it is basically the same, thereby greatly reducing the possibility of material adhesion to the inner wall of the silo).

[0025] The silo entry solenoid valve 14 described in the present invention is automatically opened by the PLC control device when materials need to be put into the silo (the material silo entry solenoid valve 14 is automatically opened or closed as needed under the control of the PLC control device, so as to realize flexible switching between the material entering the silo state and the non-entering the silo state), and the material enters the inner cavity of the columnar silo 7 to replenish the material 8 in the silo; and when exhaust is required according to the feedback information of the pressure sensor 11, the positive pressure exhaust solenoid valve 15 and the dust collector 20 are promptly controlled by the PLC control device to open, and the positive pressure gas in the storage silo is discharged into the atmosphere (ensuring the stability of the pressure in the storage silo and providing a normal storage environment for the materials in the storage silo).

[0026] The specific use of the present invention is as follows: When materials need to be put into the warehouse, the PLC control device automatically opens the warehouse entry solenoid valve 14, and the materials enter the inner cavity of the columnar silo 7 to replenish the materials 8 in the warehouse; and according to the feedback information of the pressure sensor 11, when exhaust is required, the PLC control device promptly controls the opening of the positive pressure exhaust solenoid valve 15 and the dust collector 20, and the positive pressure gas in the storage silo is discharged into the atmosphere, which can ensure the stability of the pressure in the storage silo and provide a normal storage environment for the materials in the storage silo. When the required materials are put into the warehouse, the PLC control device automatically closes the warehouse entry solenoid valve 14 and the positive pressure exhaust solenoid valve 15.

[0027] When materials need to be stored, the pressure sensor 11, humidity sensor 16, and temperature sensor 17 are still in an open working state under the control of the PLC control device, and the measured parameters are fed back to the PLC control device in a timely manner. According to the environmental requirements of the stored materials, the PLC control device analyzes the received parameters and timely opens or closes the cold air inlet solenoid valve 13 and the negative pressure air inlet solenoid valve 12 to adjust the humidity, temperature and pressure in the storage silo.

[0028] When materials need to be unloaded from the warehouse, after the material transport vehicle is in place, the outlet end of the telescopic loading and unloading device 2 is first connected to the material transport vehicle; then, the PLC control device issues a command to simultaneously start the inner unloading solenoid valve 21, the inner hopper vibration motor 19, the outer unloading solenoid valve 3, and the outer hopper vibration motor 4 to ensure that both the two-stage discharge hoppers are in the discharge state, ensure that the discharge channel is normally open, and ensure that the materials in the warehouse are smoothly unloaded and loaded. At the same time, the negative pressure air intake solenoid valve 12 is opened to allow external air to enter the inner cavity of the storage silo, automatically and timely adjust the air pressure in the inner cavity of the storage silo, and stabilize the air pressure in the inner cavity of the storage silo at a certain pressure. The pressure inside the silo is within the force range to ensure the safety of the storage silo; when the loading capacity of the material transport vehicle is about to reach the required value, the PLC control device issues a command to close the inner unloading solenoid valve 21, the inner hopper vibration motor 19, the outer unloading solenoid valve 3, and the outer hopper vibration motor 4 at the same time to stop working, ensuring that the discharge channel is closed, so that both stages of the discharge hoppers are in a storage state to ensure that the material in the silo is not discharged outward, and at the same time, the negative pressure air intake solenoid valve 12 is also closed. At this time, the air pressure in the inner cavity of the storage silo has been stabilized within a certain pressure range. Closing the negative pressure air intake solenoid valve 12 ensures that the pressure in the storage silo is stable, providing a normal storage environment for the material in the storage silo.

Claims

1. A large-scale intelligent monitoring and remote control storage silo for materials entering and leaving the silo, characterized by: The storage silo comprises a frame support platform (1), a columnar silo body which is seated on the frame support platform and is formed by a base plate (6), a columnar silo (7), and a silo cone top (9) connected in sequence from bottom to top, a plurality of inner discharge hoppers (18) fixed in a circular array on the bottom surface of the middle part of the base plate and corresponding to each drop hole (6-1) on the base plate, and fixed on the bottom surface of the edge part of the base plate and wrapping all the inner discharge hoppers to form a sealed An external discharge hopper (5) of the receiving cavity; an internal discharge solenoid valve (21) is installed at the discharge pipe opening of all internal discharge hoppers (18); an internal hopper vibration motor (19) is installed on the outer wall of all internal discharge hoppers (18); an external discharge solenoid valve (3) and a telescopic loading and unloading device (2) are installed at the discharge pipe opening of the external discharge hopper (5); and an external hopper vibration motor (4) is installed on the outer wall of the external discharge hopper (5); a cylindrical silo is inserted at the top of the silo cone (9). The inner cavity of the silo (7) is connected to a material ranging electronic radar (10), a pressure sensor (11), a negative pressure air intake solenoid valve (12), a cold air intake solenoid valve (13), a material storage solenoid valve (14), a positive pressure exhaust solenoid valve (15), a humidity sensor (16), and a temperature sensor (17), wherein the number of the material ranging electronic radars (10) is the same as the number of the inner discharge hopper (18), and they are arranged on a coaxial line in a one-to-one correspondence; all the material ranging electronic radars (10), the pressure sensor (11), the negative pressure air intake solenoid valve (12), the cold air intake solenoid valve (13), the material storage solenoid valve (14), the positive pressure exhaust solenoid valve (15), the humidity sensor (16), the temperature sensor (17), the inner discharge solenoid valve (21), the inner hopper vibration motor (19), the outer discharge solenoid valve (3), the telescopic loading and unloading device (2), and the outer hopper vibration motor (4) are connected to the PLC control device by electrical signals.

2. A large-scale intelligent monitoring and remote control storage silo for materials entering and exiting according to claim 1, characterized in that: A dust collector (20) connected to the atmosphere is connected to the upper outlet end of the positive-pressure exhaust solenoid valve (15).

3. A large-scale intelligent monitoring and remote control storage silo for materials entering and exiting according to claim 1, characterized in that: The diameter of the upper opening of the inner discharge hopper (18) is equal to the diameter of the discharge hole (6-1) in the base plate (6).

4. A large-scale intelligent monitoring and remote control storage silo for materials entering and exiting according to claim 1, characterized in that: When the telescopic loader and unloader (2) is in a normal discharging state, the PLC control device controls the inner discharging solenoid valve (21), the inner hopper vibration motor (19), the outer discharging solenoid valve (3), and the outer hopper vibration motor (4) to start working simultaneously, and when air replenishment is required according to feedback information from the pressure sensor (11), the PLC control device promptly controls the opening of the negative pressure air intake solenoid valve (12) to allow external air to enter the inner cavity of the storage silo; when the telescopic loader and unloader (2) is in a closed state, the PLC control device controls the inner discharging solenoid valve (21), the inner hopper vibration motor (19), the outer discharging solenoid valve (3), and the outer hopper vibration motor (4) to stop working simultaneously, and according to feedback information from the pressure sensor (11), the PLC control device promptly controls the closing of the negative pressure air intake solenoid valve (12).

5. A large-scale intelligent monitoring and remote control storage silo for materials entering and exiting according to claim 1, characterized in that: When the material distance measuring electronic radar (10) located directly above the inner discharge hopper (18) detects that the material (8) in the bin in the corresponding position area of ​​the axis is at a high level, the PLC control device controls the opening of the inner discharge solenoid valve (21) corresponding to the inner discharge hopper (18) on the axis; when the material distance measuring electronic radar (10) detects that the material (8) in the bin in the corresponding position area of ​​the axis is at a low level, the PLC control device controls the closing of the inner discharge solenoid valve (21) corresponding to the inner discharge hopper (18) on the axis.

6. A large-scale intelligent monitoring and remote control storage silo for materials entering and exiting according to claim 1, characterized in that: The inlet solenoid valve (14) is automatically opened by the PLC control device when materials need to be put into the silo, and the materials enter the inner cavity of the cylindrical silo (7) to replenish the materials (8) in the silo; and when exhaust is required according to the feedback information of the pressure sensor (11), the positive pressure exhaust solenoid valve (15) and the dust collector (20) are promptly opened by the PLC control device to discharge the positive pressure gas in the storage silo into the atmosphere.

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