Powder silo feeding control system and control method thereof

Abstract

The present invention discloses a powder silo feeding control system and control method. The system includes a handheld reminder, a gateway, a barrier, a controller, a dust collector, a display and control terminal, and a material level detection sensor. The handheld reminder, barrier, controller, and display and control terminal are respectively connected to the gateway, while the barrier, dust collector, and material level detection sensor are respectively connected to the controller. The present invention avoids the problem of misfeeding or overfilling the silo, causing the silo to burst.

Description

Technical Field

[0001] The present invention belongs to the technical field of powder material feeding control, and in particular relates to a powder material silo feeding control system and a control method thereof. Background Art

[0002] A concrete mixing plant is a combined unit used for centralized concrete mixing, also known as a concrete precasting plant. Due to its high degree of mechanization and automation, it boasts high productivity, guaranteed concrete quality, and cement savings. It is commonly used in large and medium-sized water conservancy, power, and bridge projects, which require large quantities of concrete, have long construction periods, and are located in concentrated areas.

[0003] Concrete batching plants are typically equipped with multiple silos for storing cement, mineral powder, fly ash, expansion agents, and other powders. These silos are stored separately. When the silos are nearly depleted and need to be replenished, a cement truck is connected to the silo's ash inlet pipe via a pipeline and uses high-pressure gas to deliver the powder into the silos.

[0004] In the process of conveying powder to the powder silo, the following problems are likely to occur:

[0005] 1. Wrong material

[0006] Because a batching plant is equipped with multiple powder silos, each storing a different type of powder, the materials cannot be mixed. In the past, cement truck drivers have misplaced the powder, resulting in the entire silo being scrapped and unusable. While some batching plants currently feature a key lock at the silo inlet, requiring the driver to obtain the key before opening the inlet for mixing, this mechanical method is inconvenient for information management.

[0007] A motor-driven feed blocking device is also installed, which uses RFID cards to manage the ash inlet and prevent mis-dispensing. When the driver swipes their card, the motor at the ash inlet rotates to open the blocking device. A second swipe closes the blocking device. While this method, through information-based feed management, can prevent mis-dispensing, there is still room for improvement.

[0008] 2. Overstocking leads to a warehouse explosion

[0009] After the driver finishes mixing, he must stop mixing immediately. Otherwise, due to excessive pressure, the powder silo may burst. This will cause destructive damage to the powder silo, and the powder will overflow, causing environmental pollution. Currently, the existing powder management systems on the market also have a powder end reminder function. Usually, a feed control box is installed near the feed port, and an audible and visual alarm device is installed on the box. Because the alarm devices of different powder silos are set in different positions, some are relatively hidden and difficult for the driver to detect. In addition, there is a lot of dust, and the alarm device will be covered by dust after years of use. At the same time, at the mixing site, the cement truck is noisy, and the sound alarm is not easy to hear. In addition, the driver is sometimes not near the feed port during mixing. The driver needs to remind himself and pay attention to the progress of mixing at all times. However, problems such as not shutting off the powder in time still often occur.

[0010] 3. Manual dust removal makes it easy to forget to turn on or off the dust removal function

[0011] When a cement truck driver pumps cement and other powdered materials into a silo, compressed air is used to draw the powdered material from the cement tank into the silo. A large amount of compressed air then leaves the silo through a dust collector located on top. The dust collector intercepts the powdered material and allows it to fall back into the silo. During this pumping process, the dust collector must be powered on. Once powered on, the pulse valve within the dust collector continuously vibrates the dust screen, both to dislodge dust and to prevent excessive dust from clogging the screen, potentially affecting dust removal efficiency and potentially preventing the silo from releasing pressure, leading to an explosion.

[0012] Traditionally, the operator manually turns dust removal on and off using a knob on the control box during material loading and then manually turns it off after loading. This often leads to problems such as forgetting to turn the dust collector on or off. First, forgetting to turn the dust collector on can clog the dust collector screen, gradually increasing silo pressure and even causing the silo safety device to activate, leading to dust leakage and environmental pollution. In extreme cases, it can cause the silo to rupture and explode. Second, forgetting to turn the dust collector off causes the dust collector to operate for extended periods, wasting energy and shortening its service life. Summary of the Invention

[0013] The purpose of the present invention is to provide a powder silo feeding control system and a control method thereof, so as to solve the problems of traditional feeding control technology such as wrong feeding of materials, overfilling of the silo and explosion, and easy forgetting to turn on and off the dust removal equipment.

[0014] The present invention solves the above technical problems through the following technical solutions:

[0015] A powder silo feeding control system, comprising:

[0016] A handheld reminder device bound to the powder silo is used to generate a barrier opening signal; generate a prompt according to the first prompt signal, or generate a prompt and a barrier closing signal according to the first prompt signal; display the status of the barrier and dust collector and the material level information of the powder silo;

[0017] A gateway connected to the handheld reminder in wireless communication, the gateway also being connected to the controller and the blocker;

[0018] The barrier is provided on the ash inlet pipe of the powder silo and is used to open the ash inlet of the ash inlet pipe according to the barrier opening signal, close the ash inlet of the ash inlet pipe according to the barrier closing signal, or automatically control the closure of the ash inlet of the ash inlet pipe;

[0019] The controller is configured to obtain the blocker status signal and control the working state of the dust collector according to the blocker status signal; obtain material level information of the powder silo, determine whether the powder silo is full according to the material level information, and generate a first prompt signal when the powder silo is full;

[0020] A dust collector electrically connected to the controller, provided on the powder bin and used for releasing compressed air during the powdering process under the control of the controller;

[0021] The material level detection sensor electrically connected to the controller is used to detect material level information of the powder silo.

[0022] Furthermore, the handheld reminder includes a power module, a control module, a wireless transceiver module, a display module, a vibration module, an alarm module and an indication module; the power module is electrically connected to the control module through a switch, and the control module is electrically connected to the wireless transceiver module, the display module, the vibration module, the alarm module and the indication module respectively.

[0023] Furthermore, the switch includes a power switch and a self-holding switch; the input end of the power switch is connected to the output end of the power module, the output end of the power switch is connected to the power end of the control module, and the control end of the power switch is respectively connected to the second end of the self-holding switch and the output end of the control module; the first end of the self-holding switch is connected to the output end of the power module, and the second end of the self-holding switch is also connected to the input end of the control module.

[0024] Furthermore, the handheld reminder is also used to display the number of the powder silo.

[0025] Furthermore, a safety valve electrically connected to the controller is provided on the powder silo. The controller is also used to obtain a safety valve status signal and generate a second prompt signal according to the safety valve status signal. The handheld reminder is also used to generate a prompt according to the second prompt signal.

[0026] Furthermore, the blocker includes a base provided on the ash inlet pipe, a rotating shaft rotatably provided on the base, a blocking member, a rotating flange, a limiting mechanism, a detection unit and a control unit; one end of the blocking member is fixed to the rotating shaft, and the other end is used to close or open the ash inlet; the rotating flange is fixed on the rotating shaft, and at least a first limiting portion and a second limiting portion are provided on the rotating flange; the limiting mechanism includes a driving mechanism and a first limiting member, the driving mechanism is provided on the base and connected to the first limiting member, the first limiting member is provided on the base and matches the first limiting portion and the second limiting portion; the detection unit is used to detect the position of the rotating flange;

[0027] The control unit is used to control the first limit member to cooperate with the first limit part to limit the rotating flange through the driving mechanism when the rotating flange is at the upper locking point, so that the blocking member is lifted and the ash inlet is opened; when the rotating flange is at the lower locking point, the control unit is used to control the first limit member to cooperate with the second limit part to limit the rotating flange through the driving mechanism, so that the blocking member falls and closes the ash inlet; when the rotating flange is between the upper locking point and the lower locking point, the control unit is used to control the first limit member to not cooperate with the first limit part and the second limit part through the driving mechanism, so that the blocking member automatically falls back under the action of gravity.

[0028] Furthermore, the driving mechanism is an electromagnet driving mechanism or a motor driving mechanism.

[0029] Furthermore, the control system also includes a display and control terminal located in the control room, which is wirelessly connected to the handheld reminder and the gateway; the display and control terminal is used to bind or unbind the handheld reminder with the powder silo, display the status of the blocker and dust collector, and display the material level information of the powder silo.

[0030] Based on the same concept, the present invention also provides a control method for the powder silo feeding control system as described above, comprising the following steps:

[0031] Generate a barrier opening signal through a handheld reminder, and send the barrier opening signal to the barrier through a gateway;

[0032] The barrier opens the ash inlet of the feed pipe according to the barrier opening signal;

[0033] The controller obtains an opening state signal of the blocker and controls the dust collector to start according to the opening state signal;

[0034] During the feeding process, the controller obtains the material level information of the powder material bin and determines whether the powder material bin is full according to the material level information; if so, a first prompt signal is generated and sent to the handheld reminder through the gateway, and the handheld reminder generates a prompt according to the first prompt signal;

[0035] After the material is beaten, the barrier is closed, and the controller obtains a closing state signal of the barrier and controls the dust collector to close according to the closing state signal.

[0036] Furthermore, the specific implementation method of closing the blocker is:

[0037] If the powder bin is full or not in the feeding state or the feeding time is greater than the set time, the feeding is completed, and a blocker closing signal is generated through the handheld reminder. The blocker closes the ash inlet of the ash feeding pipe according to the blocker closing signal, or the control unit of the blocker automatically controls the ash inlet of the ash feeding pipe to close according to the feeding end signal.

[0038] Beneficial effects

[0039] Compared with the prior art, the advantages of the present invention are:

[0040] The present invention provides a powder silo feeding control system and a control method thereof. After a handheld reminder is bound to the powder silo, only the handheld reminder can be used to control the blocker on the powder silo bound thereto, thereby performing the feeding work and avoiding the problem of wrong feeding. When the powder silo is full, a reminder is issued by the handheld reminder. The handheld reminder is convenient for the driver to hold and does not need to be set up at the feeding site, avoiding the problems of the reminder being difficult to be noticed by the driver, being blocked by dust, and the prompt sound being covered by noise. It can promptly remind the driver that the material level is full and avoid the problem of over-filling and explosion of the silo. The controller controls the operation of the dust collector according to the state of the blocker. When the blocker is opened, the dust collector starts, and when the blocker is closed, the dust collector is closed, avoiding the problem of manual switching of the dust collector resulting in forgetting to switch the dust collector on and off, thereby avoiding environmental pollution, explosion and waste of electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 This is a schematic diagram of the structure of the powder silo feeding control system in an embodiment of the present invention;

[0043] Figure 21 is a schematic structural diagram of a handheld reminder according to an embodiment of the present invention;

[0044] Figure 3 is a circuit diagram of a handheld reminder according to an embodiment of the present invention;

[0045] Figure 4 is a perspective view of a first embodiment of a blocker in an embodiment of the present invention;

[0046] Figure 5 is a plan view of a first embodiment of a barrier in an embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of the installation of the first embodiment of the blocker in the embodiment of the present invention;

[0048] Figure 7 Schematic diagram of the rotating flange structure of the first embodiment of the blocker in the embodiment of the present invention;

[0049] Figure 8 2 is a schematic structural diagram of a first embodiment of the blocker when the rotating flange is at the upper locking point in an embodiment of the present invention;

[0050] Figure 9 2 is a schematic structural diagram of a first embodiment of the blocker when the rotating flange is at the lower locking point in an embodiment of the present invention;

[0051] Figure 10 This is a schematic diagram of the protective cover structure in an embodiment of the present invention;

[0052] Figure 11 is a perspective view of a second embodiment of a blocker according to an embodiment of the present invention;

[0053] Figure 12 is a perspective view of a second embodiment of the blocker when the rotating flange is at the upper locking point in an embodiment of the present invention;

[0054] Figure 13 is a plan view of a second embodiment of the blocker when the rotating flange is at the upper locking point in an embodiment of the present invention;

[0055] Figure 14 It is a plan view of a second embodiment of the blocker when the rotating flange is at the lower locking point in an embodiment of the present invention.

[0056] Among them, 200-ash inlet pipe, 300-blocker, 310-base, 311-limiting block, 312-clamp, 313-protective cover, 314-indicator light, 320-blocking rod, 330-electromagnet drive mechanism, 331-pin, 332-iron core, 340-rotating shaft, 350-rotating flange, 351-first limiting part, 352-second limiting part, 353-fourth limiting part, 360-rotating block, 361-third limiting part, 370-angle sensor, 380-guide sleeve, 390-pin shaft, 391-connecting block. DETAILED DESCRIPTION

[0057] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0058] The following specific embodiments are used to describe the technical solution of the present application in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0059] Example 1

[0060] like Figure 1 As shown, a powder silo feeding control system provided by an embodiment of the present invention includes: a handheld reminder, a gateway, a barrier, a controller, a dust collector, a display and control terminal, and a material level detection sensor; the handheld reminder, the barrier, the controller, and the display and control terminal are respectively connected to the gateway, and the barrier, the dust collector, and the material level detection sensor are respectively connected to the controller.

[0061] The handheld reminder is used to generate a barrier opening signal; generate a prompt according to the first prompt signal, or generate a prompt and a barrier closing signal according to the first prompt signal; display the status of the barrier and dust collector and display the material level information of the powder silo. The barrier is arranged on the ash inlet pipe of the powder silo and is used to open the ash inlet of the ash inlet pipe according to the barrier opening signal, close the ash inlet of the ash inlet pipe according to the barrier closing signal, or automatically control the closure of the ash inlet of the ash inlet pipe. The controller is used to obtain the barrier status signal and control the working state of the dust collector according to the barrier status signal; obtain the material level information of the powder silo, determine whether the powder silo is full according to the material level information, and generate a first prompt signal when the powder silo is full. The dust collector is arranged on the powder silo and is used to release compressed air during the feeding process under the control of the controller. The material level detection sensor is used to detect the material level information of the powder silo.

[0062] The handheld reminder is bound to the powder silo where the material is to be loaded: when the transport vehicle enters the site, the staff notifies the driver to go to the designated powder silo to load the material. For example, if the powder silo is numbered N, the staff will hand the handheld reminder bound to powder silo No. N to the driver. The handheld reminder displays the powder silo number to guide the driver to the designated powder silo and load the material in the designated powder silo.

[0063] The handheld reminder is used to generate a barrier opening signal. The handheld reminder can only control the opening of the barrier on the powder silo bound to it, avoiding the problem of wrong material injection.

[0064] The handheld reminder is also used to generate a prompt based on the first prompt signal sent by the controller, or to generate a prompt and a barrier closing signal based on the first prompt signal sent by the controller, so as to remind the driver that the material level is full or to directly close the barrier according to the barrier closing signal, thereby avoiding the problem of overfilling and explosion of the warehouse. At the same time, the handheld reminder is easy for the driver to carry and does not need to be set up at the material filling site, thereby avoiding the problem that the reminder is not easily noticed by the driver, is blocked by dust, and the prompt sound is covered by noise.

[0065] The handheld reminder is also used to display the status of the barrier and dust collector as well as the material level information of the powder silo, so that the driver can understand the status information of each equipment during the material mixing operation.

[0066] like Figure 2 and 3 As shown, a first specific embodiment of a handheld reminder includes a power module, a control module, a wireless transceiver module, a display module, a vibration module, an alarm module, and an indicator module. The power module is electrically connected to the control module via a switch, and the control module is electrically connected to the wireless transceiver module, display module, vibration module, alarm module, and indicator module, respectively. In this embodiment, the power module includes a charging module and a rechargeable battery. An external power source charges the rechargeable battery through the charging module, and the rechargeable battery supplies power to the control module, wireless transceiver module, display module, vibration module, alarm module, and indicator module via a switch. In this embodiment, the vibration module is a motor, the alarm module is a buzzer, and the indicator module is an indicator light.

[0067] In this embodiment, the switch includes a power switch S and a self-holding switch K; the input end of the power switch S is connected to the output end of the power module, the output end of the power switch S is connected to the power end of the control module, and the control end of the power switch S is respectively connected to the second end of the self-holding switch K and the output end DO (i.e., the digital output end or digital output port) of the control module; the first end of the self-holding switch K is connected to the output end of the power module, and the second end of the self-holding switch K is also connected to the input end DI (i.e., the digital input end or digital input port) of the control module.

[0068] The wireless transceiver module of the handheld reminder communicates with the controller and the display and control terminal through the gateway. The display module of the handheld reminder can be an LED or LCD screen, and is used to display the status of the barrier, dust collector, and the material level information of the powder silo (such as material level height, upper and lower material level alarm information). It can also display the powder silo number and the status of the reminder itself, such as battery power. Press the self-holding switch K to generate a barrier opening signal. When the self-holding switch K is pressed, the motor vibrates to increase the tactile sense; when the material level is full (or almost full but not full), the motor vibrates to generate a prompt, so as to promptly remind the driver that the material level is full; when the battery power is too low or the reminder is turned on, the motor vibrates to provide a prompt through tactile sense; when the reminder signal is poor, the motor vibrates to remind the driver not to leave too far. When the material level is too high or too low, the buzzer sounds an alarm or the motor vibrates.

[0069] The power switch S in this embodiment can be a relay, a MOS tube or a thyristor, etc., and power supply or shutdown is achieved by controlling the opening and closing of the power switch S. When the power switch S is closed, the rechargeable battery powers the control module, the wireless transceiver module, the display module, the vibration module, the alarm module and the indication module; when the power switch S is disconnected, the reminder realizes self-shutdown control.

[0070] like Figure 2 and 3 As shown, the self-holding switch K in this embodiment is a flexible key. When the key is pressed, the battery voltage passes through the key to the control signal point A, driving the power switch S to close and power the reminder. After the reminder is powered, the control module begins to operate, outputting a voltage signal to point A through its DO port. Even if the key is released, the power switch S remains closed, and the battery continues to supply power, thus achieving self-holding power to the control module. When the control module needs to execute the shutdown logic, the control module simply stops outputting the voltage signal to point A through the DO port, and the power switch S is disconnected. At this time, the battery is no longer able to supply power, thereby de-energizing the reminder, thus achieving self-shutdown control.

[0071] The external power supply can also be directly connected to the control signal point A. When the external power supply charges the rechargeable battery through the charging module, the power switch S is continuously closed and the reminder is continuously in the on state. One end of the self-holding switch K is connected to the DI port of the control module. Pressing or lifting the self-holding switch K changes the voltage state of the DI port. The control module determines whether the self-holding switch K is pressed by the voltage state of the DI port. Therefore, when charging, the reminder is in a continuously on state; when not charging, when the self-holding switch K is pressed, the reminder is powered. When the self-holding switch K is released, the battery no longer supplies power to the rear circuit (i.e., the control module, wireless transceiver module, display module, vibration module, alarm module, and indication module). It needs to be continuously powered, and only the control module needs to output voltage at the DO port; when the DO port does not output voltage, the reminder implements self-shutdown control.

[0072] There are several situations in which the DO port does not output voltage: 1. The battery power is lower than the set power value; 2. The reminder is not bound to the powder silo for more than the set time (for example, 2 minutes) after the power is turned on; the reminder is bound to the powder silo for more than the set time (for example, 5 minutes) after the power is turned on; 3. The reminder receives a shutdown command, such as a shutdown command issued by the display and control terminal.

[0073] exist Figure 3 In the example, the reminder also includes a voltage-stabilizing power supply connected in series between the power switch S and the control module. This stabilizes the battery output voltage to a constant voltage. Three diodes are located near the control signal point A, providing unidirectional conduction without interfering with each other. Because the output current of the control module is limited, the motor switch K1 and buzzer switch K2 can utilize electronic switches such as transistors, MOS transistors, relays, or thyristors. These electronic switches are devices that control large currents with small currents. In this embodiment, both the motor switch K1 and the buzzer switch K2 utilize MOS transistors. The control module monitors the battery voltage via its AI port (i.e., analog input or analog input port) to obtain battery charge information; maintains the power switch S in the closed state via its DO port, ensuring power retention for the subsequent circuit; determines whether the self-holding switch K is pressed via its DI port; activates the motor switch K1 via its MD port (i.e., an output of the controller); and activates the buzzer switch K2 via its BZ port (i.e., an output of the controller).

[0074] In this embodiment, a safety valve electrically connected to the controller is also provided on the powder silo. The controller is also used to obtain a safety valve status signal and generate a second prompt signal based on the safety valve status signal. The handheld reminder is also used to generate a prompt based on the second prompt signal.

[0075] The working process of the reminder of this embodiment is as follows: the reminder is in the off state, the staff presses the power switch S and the self-holding switch K, the rear circuit is energized, the control module starts working, and the DO port of the control module outputs a voltage to maintain the energized state of the rear circuit. At this time, the reminder is in an inactive state, and the blocker cannot be operated and information such as the material level height cannot be displayed through the reminder. The reminder automatically shuts down after 2 minutes in the inactive state (that is, if the reminder is in the inactive state for 2 minutes and has not been bound to the powder silo, the reminder automatically shuts down); the staff keeps the self-holding switch K pressed, and the reminder Enter the configuration mode, bind the powder silo and the reminder through the display and control terminal, and the reminder enters the activated state. At this time, the reminder receives wireless signals from the gateway and the display and control terminal, and displays the material level height status, dust collector status, barrier status, etc.; after the driver gets the activated reminder, he is guided to find the powder silo by the powder silo number displayed on the reminder; after arriving near the powder silo, the driver opens the barrier through the self-holding switch K. When the driver returns the reminder, the staff sends a wireless command through the display and control terminal to unbind the reminder from the powder silo (enter the inactivated state) and control the reminder to shut down.

[0076] The reminder of this embodiment realizes the functions of turning on the reminder, binding with the powder silo, opening the blocker, etc. through a self-holding switch K; it supports protection strategies such as wireless command shutdown, automatic shutdown due to low power, and automatic shutdown due to timeout. The reminder of this embodiment is convenient for the driver to carry with him, and it is convenient for the driver to predict the feeding time according to the information displayed on the reminder and turn off the feeding in time, avoiding the problem of overfilling and explosion of the silo; when the material level is about to be full, the reminder will give a sound (buzzer), light (indicator light), vibration (motor) prompt or a combination of the three to remind the driver to turn off the feeding in time. The reminder of this embodiment will issue a warning in time when the wireless signal is poor, reminding the driver not to stay away from the powder silo. The wireless communication distance of the present invention can reach 200 meters.

[0077] The second specific implementation of the handheld reminder is as follows: the reminder is a mobile phone, and an application software having all the functions of the reminder in the above-mentioned embodiment is installed on the mobile phone. When the driver arrives near the corresponding powder silo, he opens the barrier through the mobile phone. The specific opening method can be to press a button on the mobile phone, or to bring the mobile phone close to the barrier for induction opening. The induction opening method can be a short-range induction method such as NFC and Bluetooth. When the powder silo is full or nearly full, the material level meter feeds back the full material level information to the controller, and the controller sends a reminder to the mobile phone wirelessly through the gateway. The mobile phone reminds the driver to stop feeding quickly by sound, light, vibration, or a combination of the three.

[0078] When the powder silo is full, the level meter notifies the controller that the material level is full. The controller then sends a wireless reminder to the mobile phone through the gateway. The reminder (mobile phone) will remind the driver to stop feeding immediately through sound, light, vibration, or a combination of the three.

[0079] The gateway in this embodiment has both wireless and digital bus communication capabilities. It connects to the display and control terminal and handheld reminder via a wireless network; it also connects to the controller and blocker for each powder silo via a digital bus. Digital buses are typically CAN, RS485, or industrial Ethernet buses, but wireless networks can also be used as an alternative. Currently, digital buses are preferred for cost and reliability reasons.

[0080] Each powder silo is equipped with an ash inlet pipe. When the material in the powder silo is insufficient, the material is transported to the powder silo through the ash inlet pipe. When the material is transported, the driver drives the transport vehicle to the vicinity of the powder silo that needs to be charged, connects the pipeline of the transport vehicle to the ash inlet pipe of the powder silo that needs to be charged, and then turns on the compressor. The high-pressure air carries the material along the ash inlet pipe into the powder silo. The blocker is provided at the ash inlet of the ash inlet pipe to prevent the connection between the pipeline of the transport vehicle and the ash inlet pipe. The blocker has at least two states: the first is a closed state, which is used to prevent the connection between the pipeline of the transport vehicle and the ash inlet pipe (when no charging is required); the second is an open state, which allows the connection between the pipeline of the transport vehicle and the ash inlet pipe (when charging is required).

[0081] like Figures 4 to 7 As shown, the first specific embodiment of the blocker is as follows: the blocker 300 includes a base 310, a rotating shaft 340, a blocking rod 320, a rotating flange 350, a limiting mechanism, a detection unit and a control unit; the base 310 is fixed to the ash inlet pipe 200 of the powder silo by a clamp 312; the rotating shaft 340 is rotatably arranged on the base 310; one end of the blocking rod 320 is fixed to the rotating shaft 340, and the other end is used to close or open the ash inlet; the rotating flange 350 is fixed to the rotating shaft 340, and the rotating flange 350 is provided with a first limiting portion 351 and a second limiting portion 352 ; The limiting mechanism includes a driving mechanism and a rotating block 360. The driving mechanism is arranged on the base 310 and is movably connected to one end of the rotating block 360 through a pin 331. The other end of the rotating block 360 is rotatably arranged on the base 310. A third limiting portion 361 matching the first limiting portion 351 and the second limiting portion 352 is provided on the rotating block 360; the detection unit is an angle sensor 370, which is arranged on the rotating flange 350 and is used to detect the rotation angle of the rotating flange 350; the control unit is electrically connected to the angle sensor 370 and the driving mechanism, respectively.

[0082] The angle sensor 370 detects the rotation angle of the rotating flange 350 and determines the position of the rotating flange 350 according to the rotation angle. Figure 8), the control unit controls the third limiting portion 361 of the rotating block 360 to cooperate with the first limiting portion 351 through the driving mechanism to limit the rotation of the rotating flange 350, thereby limiting the rotation of the rotating shaft 340, so that the blocking rod 320 is lifted and the ash inlet is opened; when the rotating flange 350 is at the lower locking point (as shown), the control unit controls the third limiting portion 361 of the rotating block 360 to cooperate with the first limiting portion 351, thereby limiting the rotation of the rotating flange 350, thereby limiting the rotation of the rotating shaft 340, Figure 9 When the cam 350 is in the locked position, the control unit controls the third limiting portion 361 of the rotating block 360 to cooperate with the second limiting portion 352 through the driving mechanism, thereby limiting the rotation of the rotating flange 350, thereby limiting the rotation of the rotating shaft 340, causing the blocking rod 320 to fall and close the ash inlet; when the rotating flange 350 is between the upper locking point and the lower locking point, the control unit controls the third limiting portion 361 of the rotating block 360 to not cooperate with the first limiting portion 351 and the second limiting portion 352 through the driving mechanism, causing the blocking rod 320 to automatically fall back under the action of gravity.

[0083] During commissioning of the blocker 300, the blocking rod 320 is raised until the third stopper 361 of the rotating block 360 engages with the first stopper 351 of the rotating flange 350 to determine the position of the upper locking point. Simultaneously, the angle sensor 370 detects the rotation angle of the rotating flange 350 when it is at the upper locking point, and this rotation angle is stored in the control unit as a first angle threshold. Similarly, the blocking rod 320 is lowered until the third stopper 361 of the rotating block 360 engages with the second stopper 352 of the rotating flange 350 to determine the position of the lower locking point. Simultaneously, the angle sensor 370 detects the rotation angle of the rotating flange 350 when it is at the lower locking point, and this rotation angle is stored in the control unit as a second angle threshold. When the blocker 300 is in operation, the control unit compares the rotation angle detected by the angle sensor 370 with the first and second angle thresholds to determine whether the rotating flange 350 is at the upper locking point, the lower locking point, or between the upper and lower locking points.

[0084] When the blocking rod 320 falls back to the lower locking point, the control unit causes the third limiting part 361 of the rotating block 360 to cooperate with the second limiting part 352 of the rotating flange 350 through the driving mechanism to close the ash inlet and lock the blocking rod 320 to prohibit illegal ash discharge. While the blocking rod 320 automatically falls back under gravity (i.e., when the rotating flange 350 is between the upper and lower locking points), the drive mechanism remains inactive. Even if the connecting pipe is connected to the ash inlet pipe 200, the automatic fall of the blocking rod 320 will not affect material feeding, nor will it damage the connecting pipe, nor will it burn out due to a drive mechanism stall. Furthermore, the blocking rod 320 will not bend or deform. After the connecting pipe is disconnected from the ash inlet pipe 200, the blocking rod 320 falls back to the lower locking point. The drive mechanism then controls the third limiter 361 of the rotating block 360 to engage with the second limiter 352 of the rotating flange 350, closing the ash inlet and locking the blocking rod 320. The entire operating process of the blocker is safe and reliable.

[0085] A feed sensor, electrically connected to the control unit, is located at the ash inlet. It houses an accelerometer or temperature sensor that can sense the vibration or temperature of the ash inlet pipe 200. When a cement truck discharges material into the ash inlet pipe 200, it generates significant vibrations. This vibration sensing determines whether the cement truck is currently discharging material. Simultaneously, the temperature of the ash inlet pipe 200 rises significantly, typically reaching 50-60°C. This temperature change is detected by sensing the surface temperature of the ash inlet pipe 200. The discharge time starts when the ash inlet is opened. The control unit measures the discharge time. When the discharge time reaches a set time (e.g., 5 minutes), the control unit automatically lowers the blocking lever 320, regardless of whether the barrier is authorized or unauthorized, and regardless of whether the ash inlet is connected to a connecting pipe. This significantly improves safety. The blocking lever 320 automatically closes even if the driver forgets to do so. Other motor-driven blockers cannot achieve this effect. Forcibly closing the block lever 320 when a connecting pipe is connected can damage the motor, connecting pipe, or blocking lever 320, requiring the driver to manually operate the block lever.

[0086] In this embodiment, the drive mechanism is an electromagnet drive mechanism 330 or a linear motor drive mechanism, preferably an electromagnet drive mechanism 330. The control unit controls the operation of the electromagnet drive mechanism 330 through current. When the control unit outputs current to the electromagnet drive mechanism 330, the electromagnet drive mechanism 330 drives the rotating block 360 to operate; when the control unit does not output current to the electromagnet drive mechanism 330, the electromagnet drive mechanism 330 does not operate. The electromagnet drive mechanism 330 generates electromagnetic force through current control, thereby extending or retracting its iron core 332. When the iron core 332 extends, it drives the rotating block 360 toward the rotating flange 350, so that the third limiter 361 of the rotating block 360 engages with the first limiter 351 or the second limiter 352 of the rotating flange 350. When the iron core 332 retracts, it drives the rotating block 360 away from the rotating flange 350, allowing the blocking rod 320 to fall back freely. The electromagnet drive mechanism 330 has the advantages of low cost, low failure rate, and low maintenance costs.

[0087] One embodiment of the detection unit is an angle sensor 370, which can also be a non-contact Hall sensor, a magnetoresistive angle sensor 370, a photoelectric code disk encoder, etc. Another embodiment of the detection unit is: the detection unit includes a first sensing element, a second sensing element, and a proximity sensor electrically connected to the control unit; the proximity sensor is arranged on the base 310, and the first sensing element and the second sensing element are respectively arranged on the rotating flange 350; when the first sensing element activates the proximity sensor, it indicates that the rotating flange 350 is at the upper locking point, and when the second sensing element activates the proximity sensor, it indicates that the rotating flange 350 is at the lower locking point, so that the position of the rotating flange 350 is determined according to the activation signal of the proximity sensor, and then the action of the driving mechanism is controlled.

[0088] In this embodiment, a fourth limiting portion 353 is provided on the rotating flange 350, and a limiting block 311 is provided on the base 310. The limiting block 311 is located in the fourth limiting portion 353, and when the rotating flange 350 is at the upper locking point, the limiting block 311 is located at the lower limit position of the fourth limiting portion 353 (such as Figure 8 As shown), when the rotating flange 350 is at the lower locking point, the limit block 311 is located at the upper limit position of the fourth limit portion 353 (as shown Figure 9 The fourth limiting portion 353 and the limiting block 311 limit the range of motion of the blocking rod 320, ensuring that the movement of the blocking rod 320 does not exceed the upper locking point and the lower locking point, ensuring that the automatic falling movement of the blocking rod 320 can be realized normally.

[0089] In this embodiment, a one-way damper is provided between the base 310 and the rotating shaft 340 to limit the speed at which the blocking rod 320 falls back. By limiting the speed at which the blocking rod 320 falls back, the force exerted by the blocking rod 320 on the connecting pipe when the connecting pipe is not disconnected from the ash inlet pipe 200, further preventing damage to the connecting pipe. When the blocking rod 320 is raised, there is no damping, allowing it to be raised quickly.

[0090] In this embodiment, Figure 10 As shown, a protective cover 313 is provided on the base 310. The protective cover 313 and the base 310 form a closed cavity. The rotating flange 350, the limit mechanism and the detection unit are located in the closed cavity. The protective cover 313 plays a role in dust prevention and protection. An indicator light 314 electrically connected to the control unit is provided on the protective cover 313. When the blocker is not authorized to be used and the blocking rod 320 is at the lower locking point, the indicator light 314 is off; when the blocker is not authorized to be used and the blocking rod 320 is at the upper locking point, indicating an illegal state, the control unit automatically controls the iron core 332 to retract, the blocking rod 320 automatically falls back, and the indicator light 314 flashes quickly as a warning; when the blocker is authorized and the blocking rod 320 is at the lower locking point, the indicator light 314 flashes slowly, indicating that the blocker has obtained authorization and can be opened for operation; when the blocker is authorized and leaves the lower locking point, the indicator light 314 is always on, indicating that the dust feeding operation is in progress.

[0091] like Figure 11 As shown, the second specific embodiment of the blocker is as follows: the blocker 300 includes a base 310, a rotating shaft 340, a blocking rod 320, a rotating flange 350, a limiting mechanism, a detection unit and a control unit; the base 310 is fixed to the ash inlet pipe 200 of the powder silo by a clamp 312; the rotating shaft 340 is rotatably arranged on the base 310; one end of the blocking rod 320 is fixed to the rotating shaft 340, and the other end is used to close or open the ash inlet; the rotating flange 350 is fixed to the rotating shaft 340, and the rotating flange 350 is fixed to the rotating shaft 340. 50 is provided with a first limiting portion 351 and a second limiting portion 352; the limiting mechanism includes a driving mechanism, a guide sleeve 380 and a pin 390, the driving mechanism and the guide sleeve 380 are arranged on the base 310, the pin 390 is inserted into the guide sleeve 380, and one end of the pin 390 is connected to the driving mechanism through a connecting block 391, and the other end is matched with the first limiting portion 351 and the second limiting portion 352; the detection unit is used to detect the position of the rotating flange 350; the control unit is electrically connected to the detection unit and the driving mechanism respectively.

[0092] When the blocker 300 is working, the blocking rod 320 can be manually lifted first. When the rotating flange 350 is in the upper locking point, the control unit extends the pin shaft 390 through the driving mechanism and cooperates with the first limit part 351 of the rotating flange 350, the ash inlet is opened, and the cement truck is connected to the ash inlet pipe 200 through the connecting pipe, and the powder is sent into the powder bin (in the feeding state); when it is not in the feeding state or the statistical feeding time is greater than the set time, the control unit retracts the pin shaft 390 through the driving mechanism and does not cooperate with the first limit part 351 of the rotating flange 350, and the blocking rod 320 automatically falls back under the action of gravity. When the blocking rod 320 falls back to the lower locking point, the control unit extends the pin shaft 390 through the driving mechanism and cooperates with the second limit part 352 of the rotating flange 350, thereby closing the ash inlet. When the blocking rod 320 automatically falls back under the action of gravity (that is, the rotating flange 350 is between the upper locking point and the lower locking point), the driving mechanism does not move (the pin shaft 390 is in a retracted state). Even if the connecting pipe is connected to the ash inlet pipe 200, the automatic falling back of the blocking rod 320 will not affect the material feeding, nor will it damage the connecting pipe, nor will it burn out due to the blocking of the driving mechanism, and the blocking rod 320 will not bend or deform. When the connecting pipe is disengaged from the ash inlet pipe 200, the blocking rod 320 falls back to the lower locking point, the driving mechanism again controls the pin shaft 390 to extend and cooperate with the second limit portion 352 of the rotating flange 350, the ash inlet is closed, and the blocking rod 320 is locked.

[0093] There are two implementation methods of the detection unit: the first is that the detection unit is an angle sensor 370, which detects the rotation angle of the rotating flange 350 and determines the position of the rotating flange 350 according to the rotation angle. When the rotating flange 350 is at the upper locking point (such as Figure 12 、 13 ), the control unit controls the pin 390 to approach the rotating flange 350 through the driving mechanism, thereby cooperating with the first limiting portion 351 to limit the rotation of the rotating flange 350, thereby limiting the rotation of the rotating shaft 340, so that the blocking rod 320 is lifted and the ash inlet is opened; when the rotating flange 350 is at the lower locking point (as shown in FIG. Figure 14 When the cam 350 is in the closed position, the control unit controls the pin 390 to move closer to the rotating flange 350 through the driving mechanism, thereby cooperating with the second limiting portion 352 to limit the rotation of the rotating flange 350, thereby limiting the rotation of the rotating shaft 340, causing the blocking rod 320 to fall and close the ash inlet; when the rotating flange 350 is between the upper locking point and the lower locking point, the control unit controls the pin 390 to retract through the driving mechanism, thereby not cooperating with the first limiting portion 351 and the second limiting portion 352, causing the blocking rod 320 to automatically fall back under the action of gravity.

[0094] The second type is that the detection unit includes a first sensing element, a second sensing element, and a proximity sensor electrically connected to the control unit; the proximity sensor is arranged on the base 310, and the first sensing element and the second sensing element are respectively arranged on the rotating flange 350; when the first sensing element activates the proximity sensor, it indicates that the rotating flange 350 is at the upper locking point, and when the second sensing element activates the proximity sensor, it indicates that the rotating flange 350 is at the lower locking point, so that the position of the rotating flange 350 is determined according to the activation signal of the proximity sensor, and then the action of the driving mechanism is controlled.

[0095] In one embodiment of the present invention, the drive mechanism is an electromagnet drive mechanism 330 or a linear motor drive mechanism, preferably an electromagnet drive mechanism 330. A control unit controls the operation of the electromagnet drive mechanism 330 via an electric current. When the control unit outputs electric current to the electromagnet drive mechanism 330, the electromagnet drive mechanism 330 drives the pin 390 along the guide sleeve 380 via the connecting block 391. When the control unit does not output electric current to the electromagnet drive mechanism 330, the electromagnet drive mechanism 330 does not operate. The electromagnet drive mechanism 330 generates electromagnetic force controlled by the electric current, thereby extending or retracting the pin 390. When the pin 390 extends, the pin 390 engages with the first stop 351 or the second stop 352 of the rotating flange 350. When the pin 390 retracts, the pin 390 disengages from the first stop 351 or the second stop 352 of the rotating flange 350, allowing the blocking rod 320 to freely fall back. The electromagnet drive mechanism 330 has the advantages of low cost, low failure rate, and low maintenance costs.

[0096] In a specific embodiment of the present invention, a fourth limiting portion 353 is provided on the rotating flange 350, and a limiting block 311 is provided on the base 310. The limiting block 311 is located in the fourth limiting portion 353, and when the rotating flange 350 is at the upper locking point, the limiting block 311 is located at the lower limit position of the fourth limiting portion 353 (such as Figure 12 、 13 As shown), when the rotating flange 350 is at the lower locking point, the limit block 311 is located at the upper limit position of the fourth limit portion 353 (as shown Figure 14 The fourth limiting portion 353 and the limiting block 311 limit the range of motion of the blocking rod 320 (e.g., 0 to 90 degrees), ensuring that the movement of the blocking rod 320 does not exceed the upper locking point and the lower locking point, thereby ensuring that the automatic falling movement of the blocking rod 320 can be realized normally.

[0097] The control of the first embodiment or the second embodiment of the blocker includes ash inlet opening control and closing control. The ash inlet opening control includes: controlling the action of the driving mechanism according to the received opening control instruction, so that the first limit member (i.e., the iron core or the pin shaft) retracts, and the first limit member is disengaged / not matched with the second limit member; manually lifting the blocking member and obtaining the rotating flange position information collected by the detection unit; when the rotating flange is at the upper locking point, the driving mechanism makes the first limit member match with the first limit member to limit the rotating flange, so that the blocking member is lifted and the ash inlet is opened; when it is not in the material punching state or the material punching time is greater than the set time, the ash inlet closing control is executed.

[0098] The ash inlet closing control includes: controlling the action of the driving mechanism according to the received closing control instruction, so that the first limit member retracts, and the first limit member disengages / does not cooperate with the first limit part; the blocking member automatically falls back under the action of gravity and obtains the rotating flange position information collected by the detection unit; when the rotating flange is at the lower locking point, the driving mechanism makes the first limit member cooperate with the second limit part to limit the rotating flange, so that the blocking member falls.

[0099] Typically, a mixing station is equipped with 8 to 24 powder silos. The controller is located near the powder silo and connected to various sensors installed on the silo, including an upper level switch, a lower level switch, a continuous level meter, a safety valve with an alarm output, and a powder silo weighing sensor. Each powder silo can be equipped with one controller, or multiple silos can be assigned one controller. The controller receives the blocker status signal. When the blocker status signal is on, the controller activates the dust collector; when the blocker status signal is off, the controller deactivates the dust collector. The controller controls the dust collector on the powder silo, ensuring that it opens normally during mixing and closes normally after mixing stops. This avoids the problem of forgetting to turn the dust collector on and off manually, thereby preventing environmental pollution, silo explosions, and energy waste.

[0100] The controller obtains material level information of the powder silo, determines whether the powder silo is full according to the material level information, and generates a first prompt signal when the powder silo is full, so that the handheld reminder generates a prompt according to the first prompt signal or directly closes the blocker.

[0101] The display and control terminal is a device with information display and logic control functions. It can be an embedded display with an LCD screen, an integrated industrial computer, or a computer. The display and control terminal also has wireless communication capabilities to communicate with the reminder and gateway. The display and control terminal not only displays various information but also is used to bind the reminder to the powder silo.

[0102] Example 2

[0103] When the transport vehicle enters the site, the staff notifies the transport vehicle driver to go to the designated powder silo to load the material. Assume that the powder silo is numbered N. The embodiment of the present invention further provides a control method for the powder silo feeding control system as described in Example 1. The control method includes the following steps:

[0104] Step 1: The staff binds the handheld reminder to the powder silo numbered N through the display and control terminal and gives the handheld reminder to the driver;

[0105] Step 2: The driver holds the reminder and arrives near the powder silo according to the powder silo number displayed on the reminder; the indicator light on the reminder is always on or flashing to guide the driver to confirm the powder silo;

[0106] Step 3: The driver presses the self-holding switch on the handheld reminder to generate a barrier opening signal, and sends the barrier opening signal to the barrier and / or display control terminal through the gateway;

[0107] Step 4: The barrier opens the ash inlet of the feed pipe according to the barrier opening signal and transmits the barrier opening state signal to the controller; the driver connects the pipeline of the transport vehicle with the ash inlet pipe and starts to feed the powder into the silo;

[0108] Step 5: The controller obtains the opening state signal of the barrier and controls the dust collector to start according to the opening state signal;

[0109] Step 6: During the feeding process, the controller also obtains the material level information of the powder silo through the material level switch or continuous material level meter, and determines whether the powder silo is full or almost full based on the material level information (whether it is almost full can be determined by setting a threshold); if so, a first prompt signal is generated, and the first prompt signal is sent to the handheld reminder through the gateway. The handheld reminder generates a prompt in the form of sound, light, vibration, or a combination of the three based on the first prompt signal, so as to prompt the driver to stop feeding in time to avoid the powder silo from exploding; at the same time, the controller also sends the material level information and dust collector status information to the reminder and / or the display and control terminal;

[0110] Step 7: After the material is discharged, the barrier is closed, the controller obtains the closing state signal of the barrier, and controls the dust collector to close according to the closing state signal.

[0111] In this embodiment, the specific implementation method of closing the barrier is: if the powder bin is full or not in the feeding state or the feeding time is greater than the set time (for example, 5 minutes), the feeding is completed, and a barrier closing signal is generated through a handheld reminder. The barrier closes the ash inlet of the ash feeding pipe according to the barrier closing signal, or the control unit of the barrier automatically controls the ash inlet of the ash feeding pipe to close according to the feeding end signal.

[0112] In this embodiment, the dust collector can be controlled to close after a certain period of time after the barrier is closed, so as to ensure the safety of the powder silo.

[0113] This embodiment can also detect whether it is in the feeding state through the feeding sensor. The feeding sensor can specifically be a vibration sensor or a temperature sensor. It can sense whether it is currently in the feeding state through the vibration or temperature of the feeding pipe. When it is in the feeding state, the dust collector is controlled to work; when it is in the feeding end state, the dust collector is controlled to shut down, and the dust collector is effectively managed, which on the one hand avoids warehouse explosion, and on the other hand saves energy.

[0114] The above disclosure is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or modifications within the technical scope disclosed in the present invention, and they should all be covered by the scope of protection of the present invention.

Claims

1. A powder silo feeding control system, characterized in that: The system comprises: A handheld reminder device bound to the powder silo is used to generate a barrier opening signal; generate a prompt according to the first prompt signal, or generate a prompt and a barrier closing signal according to the first prompt signal; display the status of the barrier and dust collector and the material level information of the powder silo; A gateway connected to the handheld reminder in wireless communication, the gateway also being connected to the controller and the blocker; The barrier is provided on the ash inlet pipe of the powder silo and is used to open the ash inlet of the ash inlet pipe according to the barrier opening signal, close the ash inlet of the ash inlet pipe according to the barrier closing signal, or automatically control the closure of the ash inlet of the ash inlet pipe; The controller is configured to obtain the blocker status signal and control the working state of the dust collector according to the blocker status signal; obtain material level information of the powder silo, determine whether the powder silo is full according to the material level information, and generate a first prompt signal when the powder silo is full; A dust collector electrically connected to the controller, provided on the powder bin and used for releasing compressed air during the powdering process under the control of the controller; A material level detection sensor electrically connected to the controller, for detecting material level information of the powder silo; wherein the blocker comprises a base provided on the ash inlet pipe, a rotating shaft rotatably provided on the base, a blocking member, a rotating flange, a limiting mechanism, a detection unit and a control unit; one end of the blocking member is fixed to the rotating shaft, and the other end is used to close or open the ash inlet; the rotating flange is fixed to the rotating shaft, and at least a first limiting portion and a second limiting portion are provided on the rotating flange; the limiting mechanism comprises a driving mechanism and a first limiting member, the driving mechanism is provided on the base and connected to the first limiting member, the first limiting member is provided on the base and matches the first limiting portion and the second limiting portion; the detection unit is used to detect the position of the rotating flange; The control unit is used to control the first limit member to cooperate with the first limit part to limit the rotating flange through the driving mechanism when the rotating flange is at the upper locking point, so that the blocking member is lifted and the ash inlet is opened; when the rotating flange is at the lower locking point, the control unit is used to control the first limit member to cooperate with the second limit part to limit the rotating flange through the driving mechanism, so that the blocking member falls and closes the ash inlet; when the rotating flange is between the upper locking point and the lower locking point, the control unit is used to control the first limit member to not cooperate with the first limit part and the second limit part through the driving mechanism, so that the blocking member automatically falls back under the action of gravity.

2. The powder silo feeding control system according to claim 1, characterized in that: The handheld reminder includes a power module, a control module, a wireless transceiver module, a display module, a vibration module, an alarm module and an indication module; the power module is electrically connected to the control module through a switch, and the control module is electrically connected to the wireless transceiver module, the display module, the vibration module, the alarm module and the indication module respectively.

3. The powder silo feeding control system according to claim 2, characterized in that: The switch includes a power switch and a self-holding switch; the input end of the power switch is connected to the output end of the power module, the output end of the power switch is connected to the power end of the control module, and the control end of the power switch is respectively connected to the second end of the self-holding switch and the output end of the control module; the first end of the self-holding switch is connected to the output end of the power module, and the second end of the self-holding switch is also connected to the input end of the control module.

4. The powder silo feeding control system according to claim 1, characterized in that: The handheld reminder is also used to display the number of the powder bin.

5. The powder silo feeding control system according to claim 1, characterized in that: A safety valve electrically connected to the controller is also provided on the powder silo. The controller is further used to obtain a safety valve status signal and generate a second prompt signal according to the safety valve status signal. The handheld reminder is also used to generate a prompt according to the second prompt signal.

6. The powder silo feeding control system according to claim 1, characterized in that: The driving mechanism is an electromagnet driving mechanism or a motor driving mechanism.

7. The powder silo feeding control system according to any one of claims 1 to 6, characterized in that: The control system also includes a display and control terminal located in the control room, which is wirelessly connected to the handheld reminder and the gateway; the display and control terminal is used to bind or unbind the handheld reminder with the powder silo, display the status of the blocker and dust collector, and display the material level information of the powder silo.

8. A control method for a powder silo feeding control system according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: Generate a barrier opening signal through a handheld reminder, and send the barrier opening signal to the barrier through a gateway; The barrier opens the ash inlet of the feed pipe according to the barrier opening signal; The controller obtains an opening state signal of the blocker and controls the dust collector to start according to the opening state signal; During the feeding process, the controller obtains the material level information of the powder material bin and determines whether the powder material bin is full according to the material level information; if so, a first prompt signal is generated and sent to the handheld reminder through the gateway, and the handheld reminder generates a prompt according to the first prompt signal; After the material is beaten, the barrier is closed, and the controller obtains a closing state signal of the barrier and controls the dust collector to close according to the closing state signal.

9. The control method according to claim 8, characterized in that: The specific implementation method of closing the blocker is: If the powder bin is full or not in the feeding state or the feeding time is greater than the set time, the feeding is completed, and a blocker closing signal is generated through the handheld reminder. The blocker closes the ash inlet of the ash feeding pipe according to the blocker closing signal, or the control unit of the blocker automatically controls the ash inlet of the ash feeding pipe to close according to the feeding end signal.

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