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

Abstract

The utility model 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. According to the utility model, data information is accurately acquired in real time by virtue of various detection sensors arranged inside and outside the silo and is timely transmitted to the PLC control system, 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 utility model relates to the technical field of large-scale storage of powdery and granular solid materials, and more specifically to a large-scale storage silo with intelligent monitoring and remote control of material inlet and outlet. The utility model 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] Currently, large silos for storing powdered and granular solid materials generally come in two types of structures: one is a floor-mounted silo, where the material is discharged through a conical hopper buried underground and piped. The other is a platform-supported silo, where the silo's floor rests on a raised platform. Under the action of gravity, the material flows through a conical hopper connected to the floor and is discharged through a discharge port into a material transport vehicle located above ground. Both types of silos utilize a centrally located discharge system, with the discharge opening located on the silo's central axis. Furthermore, the storage requirements for large and extra-large silos vary significantly depending on the type of material stored. For example, granular grains require strict temperature and humidity control, requiring regular ventilation and seasonal preventative treatment for insect eggs and larvae. Industrial raw materials such as slag pellets, coal powder, iron powder, cement, and various chemical powders require strict humidity control.

[0003] The following is a more detailed summary of the shortcomings of the two most common large-scale storage silo structures in actual use, which need to be improved and perfected according to the specific types of stored materials:

[0004] 1. Various types of granular grains: The raw grains enter the silo through the center of the top and are always stacked in a cone shape 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 center area, while the larger particles roll along the cone toward the center of the silo and toward the outer edge. As a result, the pressure and air permeability in different parts of the silo are different. The center area is very easy to stick together into blocks due to pressure and humidity changes, blocking the center discharge hole;

[0005] 2. Various types of pulverized coal, iron powder, cement, and various chemical powder industrial raw materials: Although the pressure in each area of ​​the storage silo is basically the same under static conditions, if 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 material in the central area is discharged, a large amount of material adheres to certain areas of the silo wall, resulting in uneven distribution of materials on the silo wall in certain areas. When the amount reaches a certain level, the entire silo may tip over to one side, causing serious accidents;

[0006] 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 various valves for feeding and discharging, and regulating the process environment. This not only causes a large workload for the silo cluster but is also prone to incorrect operations that lead to material losses. Summary of the Invention

[0007] The present invention is aimed at addressing 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 precise control of material entry and 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 significantly 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 tipping; adding a vibration motor to the outer wall of the cone bucket can greatly reduce the possibility of the discharge port being blocked by 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 materials in the silo is basically consistent in the inner cavity of the storage silo, and can also greatly reduce the possibility of the material sticking to the inner wall of the silo.

[0008] The purpose of this utility model can be achieved through the following technical measures:

[0009] The utility model is a large-scale intelligent monitoring and remote control of the storage silo for materials entering and exiting. The storage silo includes a frame support platform (the frame support platform provides support for the entire columnar silo body on the one hand; on the other hand, it also provides the required ground drop height, which is convenient for the materials discharged from the storage silo to be smoothly loaded into the material transport vehicle located on the ground). The columnar silo body (used for storing materials and providing a sealed storage space) 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. The columnar silo body is fixed on the bottom surface of the middle part of the base plate in a circular array and corresponds to a plurality of inner discharge holes connected to each drop hole on the base plate. Bucket (the inner discharge hopper is the first-level 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 is fixed on the bottom surface of the edge of the base plate and wraps all the inner discharge hoppers to form a sealed receiving cavity (the outer discharge hopper is a large-scale second-level discharge hopper, which is used to gather the materials discharged by each inner discharge hopper as the first-level discharge hopper and then unload them into trucks 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. The problem is solved, thereby avoiding the accident of silo tipping. All internal discharge hoppers are equipped with internal discharge solenoid valves (which are automatically opened or closed according to the needs under the control of the PLC control device, realizing the flexible switching of the internal discharge hopper between the discharge state and the non-discharge state). All internal discharge hoppers are equipped with internal hopper vibration motors on their outer walls (which can avoid the granular materials in the silo from generating particle partitions, reduce the adhesion of materials in the central area of ​​the silo, and effectively reduce the agglomeration or adhesion of chemical powders on the silo wall due to moisture, which can greatly reduce the possibility of the discharge port being blocked due to the compaction of stored materials, ensuring a smoother material discharge process). ), an external discharge solenoid valve and a telescopic loader unloader are installed at the discharge pipe of the external discharge hopper (under the control of the PLC control device, the external discharge solenoid valve and the telescopic loader unloader are automatically opened or closed as needed, realizing 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 prevent the particles from being partitioned, agglomerated or adhered on the hopper wall of the external discharge hopper after the materials discharged from the various internal discharge hoppers as the first-level discharge hoppers are gathered into the external discharge hopper, which can greatly reduce the possibility of the discharge port being blocked by the compaction of stored materials, and ensure that the materials are discharged smoothly from the external discharge hopper);The silo cone is equipped with a material ranging electronic radar, a pressure sensor, a negative pressure air inlet solenoid valve, a cold air inlet solenoid valve, a material 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 in the corresponding 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 discharge solenoid valve corresponding to the internal discharge hopper can timely adjust and ensure that the height of the materials in the storage silo is basically consistent, thereby greatly reducing the possibility of materials sticking to 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 discharge solenoid valves, internal hopper vibration motors, external discharge solenoid valves, telescopic loading and unloading devices, and external hopper vibration motors are all connected to the PLC control device via electrical signals.

[0010] In the present invention, the upper outlet end of the positive pressure exhaust solenoid valve is connected to a dust collector (for purifying the exhaust gas from the bin) which is in communication with the atmosphere.

[0011] The upper diameter of the inner discharge hopper in the present invention is equal to the diameter of the blanking hole in the base plate (to ensure seamless connection at the connection point and avoid leakage or jamming of materials).

[0012] In the present invention, the telescopic loader and unloader is in the 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, ensuring that the materials in the warehouse are smoothly discharged and loaded), and according to the feedback information of the pressure sensor, when air needs to be replenished, the PLC control device promptly controls the opening of the negative pressure air inlet 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 material in the silo is not discharged outside), and according to the feedback information of the pressure sensor, the PLC control device controls the closing of the negative pressure air intake solenoid valve in time (at this time, the air pressure in the storage silo cavity has been stabilized within a certain pressure range. Closing the negative pressure air intake solenoid valve ensures the pressure in the storage silo is stable, providing a normal storage environment for the material in the storage silo).

[0013] In the utility model, when the material ranging electronic radar located just above the inner discharge hopper detects that the material in the bin in the area corresponding to 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 inner cavity of the storage silo can be adjusted and ensured to be basically consistent, thereby greatly reducing the possibility of the material sticking to the inner wall of the silo); the material ranging electronic radar detects that the material in the bin is at a high level, and 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, and 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, thereby greatly reducing the possibility of the material sticking to the inner wall of the silo); When the material in the silo at the position area corresponding to the axis is at a low level, the PLC control device controls the closing of the internal unloading solenoid valve of the internal unloading hopper corresponding to the axis (in this way, the internal unloading hopper corresponding to the axis switches 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 the height is basically consistent, thereby greatly reducing the possibility of material adhesion to the inner wall of the silo).

[0014] The silo entry solenoid valve described in the utility model is automatically opened by the PLC control device when materials need to be put into 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 materials enter the inner cavity of the cylindrical silo to replenish the materials in the silo; and when exhaust is required according to the feedback information of the pressure sensor, the positive pressure exhaust solenoid valve and the dust collector are promptly controlled by the PLC control device to discharge the positive pressure gas in the storage silo 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).

[0015] The design principle of this utility model is as follows:

[0016] The utility model 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 a timely manner. The PLC control system then automatically and remotely and accurately controls various solenoid valves distributed on the silo pipeline. It can realize remote online monitoring and automatic and accurate control of 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 significantly reduce 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 that a number of identical discharging hoppers are arranged in an array in a uniform manner at the bottom of the silo, and the two-stage discharging form of the present invention refers to that a large outer discharging hopper that wraps all the inner discharging hoppers to form a sealed material receiving cavity is installed as a whole below each inner discharging hopper serving as the first-stage discharging hopper, which is used to aggregate 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 second-stage 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 utility model 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 PLC control during discharge, which can effectively avoid particle partitioning of granular materials in the bin or hopper, reduce the adhesion of materials in the central area of ​​the bin or hopper, and effectively reduce the agglomeration or adhesion of chemical powder on the silo wall or hopper wall due to moisture, and can greatly reduce the possibility of clogging the discharge port due to compaction of stored materials, thereby ensuring a smoother material discharge process. 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 internal discharge hopper serving as the 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 to promptly feed back the information to the PLC control device. The PLC control device then controls the opening or closing of the internal discharge solenoid valve of the corresponding internal discharge hopper, so as to promptly adjust and ensure that the height of the material in the silo in the inner cavity of the storage silo is basically consistent, which can also greatly reduce the possibility of material adhesion to the inner wall of the silo.

[0017] The beneficial technical effects of the present utility model are as follows:

[0018] The utility model can realize remote online monitoring and automatic precise control of material entry and 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 human 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 the accident 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 materials in the coaxial silo in real time can timely adjust and ensure that the height of the materials in the silo is basically consistent in the inner cavity of the storage silo, and can also greatly reduce the possibility of material adhesion to the inner wall of the silo. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the structural front view of the utility model.

[0020] Figure 2 It is a top view of the utility model.

[0021] Figure 3 It is a longitudinal sectional view of the utility model (ie Figure 2 BB section view in ).

[0022] Figure 4 It is an internal axial perspective view of the present invention.

[0023] Figure 5 for Figure 4 A local enlarged schematic diagram of point D in the figure.

[0024] Figure 6 It is an axial perspective view of the appearance of the utility model.

[0025] Explanation of the part numbers in the figure: 1. Frame 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

[0026] This utility model patent will be further described in conjunction with the following drawings and embodiments (see Figures 1 to 6 ):

[0027] The utility model relates to a large-scale intelligent monitoring and remote control storage silo for material inlet and outlet, comprising a frame support platform 1 (the frame support platform 1 provides support for the entire cylindrical silo body on the one hand; on the other hand, it also provides the required ground drop height, so that the material discharged from the storage silo can be smoothly loaded into the material transport vehicle located on the ground), a cylindrical silo body (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 cylindrical silo 7, and a silo cone 9 connected in sequence from bottom to top, and a plurality of internal 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. (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 fixed on the bottom surface of the edge of the base plate and wrapped around 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, used to collect the materials discharged by each inner discharge hopper 18 as the first-stage discharge hopper and then discharge them centrally through a central discharge port at the bottom for loading; the outer discharge hopper 5 and the inner discharge hopper 18 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, All internal discharge hoppers 18 are equipped with internal discharge solenoid valves 21 (which automatically open or close as needed under the control of a PLC control device, enabling flexible switching between the discharge and non-discharge states of the internal discharge hopper 18). Internal hopper vibration motors 19 are installed on the outer walls of all internal discharge hoppers 18 (this prevents granular material from partitioning within the silo, reduces material adhesion in the central area of ​​the silo, and effectively reduces the agglomeration or adhesion of chemical powders to the silo walls due to moisture. This significantly reduces the possibility of the discharge port being blocked by compacted stored material, 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). 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 the various internal discharge hoppers 18 serving as the first-level discharge hoppers are gathered into the external discharge hopper 5, which can greatly reduce the possibility of the discharge port being blocked by 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 intake 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 cylindrical 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 a timely manner, and 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 cavity is basically consistent, thereby greatly reducing the possibility of material sticking to 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 via electrical signals.

[0028] 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.

[0029] The diameter of the upper opening of the inner discharge hopper 18 in the present invention is equal to the diameter of the blanking hole 6 - 1 in the base plate 6 (to ensure seamless connection at the connection point to avoid leakage or jamming of materials).

[0030] In the present invention, the telescopic loading and unloading device 2 is in the 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 needs to be replenished, the PLC control device promptly controls the opening of the negative pressure air inlet 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 that the storage silo When the telescopic loader and unloader 2 is in the closed state, the PLC control device controls 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 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 material in the silo is not discharged outside), and according to the feedback information of the pressure sensor 11, the PLC control device controls the closing of the negative pressure air intake solenoid valve 12 in time (at this time, the air pressure in the storage silo cavity 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).

[0031] In the present invention, when the material ranging electronic radar 10 located just above the inner discharge hopper 18 detects that the material 8 in the bin in the area corresponding to 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 and gradually approach the average height of the material 8 in the bin, so that the height of the material 8 in the inner cavity of the storage silo can be adjusted and ensured to be basically consistent, thereby greatly reducing the possibility of the material sticking to the inner wall of the silo); the material ranging electronic radar 10 detects that the material 8 in the bin in the area corresponding to the axis is at a high level, and 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, and the height of the material 8 in the bin on the axis will decrease and gradually approach the average height of the material 8 in the bin, so as to timely adjust and ensure that the height of the material 8 in the bin in the inner cavity of the storage silo is basically consistent, thereby greatly reducing the possibility of the material sticking to the inner wall of the silo); When it is detected that the material 8 in the silo in the position area corresponding to the axis is at a low level, the PLC control device controls the closing of the internal unloading solenoid valve 21 of the internal unloading hopper 18 corresponding to the axis (in this way, the internal unloading hopper 18 corresponding to 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. As the materials 8 in other high-position silos continue to be unloaded, the height of the material 8 in the silo corresponding to the axis will gradually approach 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 and ensured to be basically consistent, thereby greatly reducing the possibility of material adhesion to the inner wall of the silo).

[0032] 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, 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 cylindrical 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 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 (ensuring the stability of the pressure in the storage silo and providing a normal storage environment for the material in the storage silo).

[0033] The specific usage of this utility model is as follows:

[0034] When materials need to be siloed, the PLC control unit automatically opens the silo inlet solenoid valve 14, allowing the materials to enter the inner cavity of the cylindrical silo 7 to replenish the material 8 in the silo. Based on the feedback from the pressure sensor 11, the PLC control unit promptly opens the positive pressure exhaust solenoid valve 15 and the dust collector 20 when exhaust is required, discharging the positive pressure gas in the storage silo to the atmosphere. This ensures stable pressure in the storage silo and provides a normal storage environment for the materials in the silo. When the required materials have been siloed, the PLC control unit automatically closes the silo inlet solenoid valve 14 and the positive pressure exhaust solenoid valve 15.

[0035] When materials need to be stored, the pressure sensor 11, humidity sensor 16, and temperature sensor 17 remain in an active state under the control of the PLC control device, and their measured parameters are promptly fed back to the PLC control device. Based on the environmental requirements of the stored materials, the PLC control device analyzes the received parameters and promptly 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 within the storage silo.

[0036] When materials need to be discharged from the warehouse, after the material transport vehicle is in place, the outlet end of the telescopic loader and unloader 2 is first connected to the material transport vehicle; then, the PLC control device issues a command to simultaneously start the internal discharge solenoid valve 21, the internal hopper vibration motor 19, the external discharge solenoid valve 3, and the external hopper vibration motor 4 to ensure that both the two-stage discharge hoppers are in the discharge state, ensuring that the discharge channel is normally open, ensuring that the materials in the warehouse are smoothly discharged and loaded, and 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 adjusting 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 stabilized at a certain pressure. The pressure in the silo is within the specified range, ensuring 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, ensuring that the discharge channel is closed, so that both discharge hoppers are in storage state, ensuring that the material in the silo is not discharged outside, and at the same time, the negative pressure air intake solenoid valve 12 is also closed. At this time, the air pressure in the storage silo cavity has 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 seated on the frame support platform and formed by a base plate (6), a columnar silo (7), and a silo cone (9) connected in sequence from bottom to top, a plurality of internal 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, fixed on the bottom surface of the edge part of the base plate and wrapped around all the internal discharge hoppers to form a seal An external discharge hopper (5) for receiving the material cavity; an internal discharge solenoid valve (21) is installed at the discharge pipe 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 of the external discharge hopper (5); an external hopper vibration motor (4) is installed on the outer wall of the external discharge hopper (5); a cylindrical columnar ... 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 drop 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 / unloader (2) is in a normal discharging state, the PLC control device controls the inner discharge solenoid valve (21), the inner hopper vibration motor (19), the outer discharge solenoid valve (3), and the outer hopper vibration motor (4) to start working simultaneously, and when air needs to be replenished 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 / unloader (2) is in a closed state, the PLC control device controls the inner discharge solenoid valve (21), the inner hopper vibration motor (19), the outer discharge 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 ranging electronic radar (10) located just 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 ranging 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 in the silo (8); 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, and the positive pressure gas in the storage silo is discharged into the atmosphere.

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