A hopper blockage detection device

Abstract

The utility model discloses a hopper material blocking detection device relates to belt conveyor protection device technical field, and the hopper material blocking detection device includes the shell, and it is located at the one side of hopper, and the movable plate is vertically arranged in the opening, and the bottom of movable plate is hinged in the shell, and the top of movable plate is the free end, the baffle is fixedly arranged in the cavity of shell, and the baffle is parallelly arranged in one side of movable plate, the connecting device, one end and movable plate lower part elasticity are connected, and the other end of connecting device and baffle lower part fixed connection, the inductor is arranged in the upper portion of baffle, and the inductor is used for detecting the interval of movable plate and baffle, the alarm device is used for sending alarm when the interval of movable plate and baffle is less than the preset interval, control device, inductor and alarm device are all connected with control device. The device can solve the hopper material blocking problem in the feeding process in the material transfer of conveying system, avoid the damage to equipment caused by the expansion of the material blocking failure.

Description

Technical Field

[0001] This utility model relates to the technical field of belt conveyor protection devices, and more specifically, to a hopper blockage detection device. Background Technology

[0002] In existing technologies, belt conveyor transport is widely used as a primary mode of transportation in industries such as metallurgy, coal mining, and grain production. However, during belt conveyor operations, due to factors such as unstable material properties, uneven blockage size, changes in material flow, and equipment malfunctions, blockages frequently occur in the feed hoppers of the transport system, causing significant inconvenience to production organization and damaging the equipment, resulting in certain economic losses.

[0003] In summary, how to solve the problem of hopper blockage during the loading and unloading process in the material transfer of the conveying system, and avoid the damage to the equipment caused by the expansion of the blockage failure, is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a hopper blockage detection device, which can solve the problem of hopper blockage during the loading and unloading process of material transfer in the conveying system, and avoid damage to the equipment caused by the expansion of the blockage fault.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hopper blockage detection device, comprising:

[0007] The outer casing is located on one side of the hopper, and the outer casing has an opening communicating with the side of the hopper;

[0008] A movable plate is vertically disposed at the opening, with its bottom hinged inside the outer casing and its top being a free end.

[0009] A partition is fixedly disposed within the cavity of the outer shell, and the partition is disposed parallel to one side of the movable plate;

[0010] A connecting device, one end of which is elastically connected to the lower part of the movable plate, and the other end of which is fixedly connected to the lower part of the partition plate;

[0011] A sensor is disposed on the upper part of the partition, and the sensor is used to detect the distance between the movable plate and the partition;

[0012] An alarm device is used to issue an alarm when the distance between the movable plate and the partition is less than a preset distance;

[0013] The control device is connected to both the sensor and the alarm device.

[0014] In one embodiment, the movable plate includes an iron plate.

[0015] In one embodiment, the connecting device includes a spring and an adjusting bolt, one end of the spring is disposed on the movable plate, the other end of the spring is connected to one end of the adjusting bolt, and the other end of the adjusting bolt is disposed on the partition plate.

[0016] In one embodiment, two springs are symmetrically and flushly arranged on the movable plate, and two adjusting bolts are symmetrically and flushly arranged on the partition plate.

[0017] In one embodiment, the bottom of the movable plate is rotatably mounted on the bottom of the housing by bolts and angle iron.

[0018] In one embodiment, the sensor includes a proximity switch.

[0019] In one embodiment, the alarm device includes an audible and visual alarm.

[0020] In one embodiment, the control device includes a power supply, a terminal block, a relay, and a PLC. The terminal block and the relay are both connected to the power supply, the sensor and the alarm device are both connected to the relay, and the terminal block and the PLC are connected.

[0021] In one embodiment, the outer casing has a door on the side away from the opening, and the door and the outer casing are detachably connected.

[0022] In one embodiment, the cabinet door is provided with an observation door.

[0023] When using the hopper blockage detection device provided by this utility model, when material blockage occurs, the material in the hopper will accumulate, thus squeezing the movable plate. This causes the upper part of the movable plate to move laterally along the fixed end of the connecting device. As the movable plate approaches the partition, the distance between the movable plate and the partition gradually decreases. The sensor can detect this distance change signal in real time and transmit it to the control device. When the distance between the movable plate and the partition is less than the preset distance, the control device can control the conveying system to stop the conveying operation. At the same time, the control device controls the alarm device to sound an alarm, reminding on-site personnel of the blockage fault so that they can quickly and promptly clear the material. After the material is cleared, the movable plate can be reset under the elastic force of the elastic end of the connecting device, so that the device can continue to detect blockage.

[0024] By using this device, losses caused by material blockage can be significantly reduced on-site. It allows for timely fault detection and rapid shutdown, minimizing losses. This has significant practical implications for reducing labor intensity and improving equipment stability and reliability, and plays a positive role in the safe and efficient transportation of belt conveyors across various industries. In other words, this device is a simple, easy-to-install, reliable, and fast-responding material blockage detection system. Once a material blockage is detected during equipment operation, it can promptly stop the conveyor system to prevent damage to the equipment.

[0025] In summary, the hopper blockage detection device provided by this utility model can solve the problem of hopper blockage during the loading and unloading process of material transfer in the conveying system, and avoid damage to the equipment caused by the expansion of the blockage fault. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the hopper blockage detection device provided by this utility model;

[0028] Figure 2 This is a side view of the hopper blockage detection device when materials are blocked.

[0029] Figure 3 A schematic diagram showing the structure of the hopper blockage detection device with the door open.

[0030] Figure 4 A circuit diagram showing how a sensor sends a warning signal to an alarm device;

[0031] Figure 5 A circuit diagram showing how the sensor sends a stop signal to the PLC.

[0032] Figures 1-5 middle:

[0033] 1 is the outer shell, 2 is the movable plate, 3 is the partition, 4 is the connecting device, 5 is the angle steel, 6 is the alarm device, 7 is the relay, 8 is the sensor, 9 is the power supply, 10 is the terminal block, 11 is the box door, and 12 is the observation window. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The core of this utility model is to provide a hopper blockage detection device, which can solve the problem of hopper blockage during the loading and unloading process of material transfer in the conveying system, and avoid damage to the equipment caused by the expansion of the blockage fault.

[0036] like Figures 1 to 3 As shown in the figure, this specific embodiment provides a hopper blockage detection device, including:

[0037] The outer casing 1 is located on one side of the hopper, and the outer casing 1 has an opening communicating with one side of the hopper;

[0038] Movable plate 2 is vertically installed at the opening, and the bottom of movable plate 2 is hinged inside the outer shell 1, while the top of movable plate 2 is a free end.

[0039] The partition 3 is fixedly installed inside the cavity of the outer shell 1, and the partition 3 is arranged parallel to one side of the movable plate 2;

[0040] The connecting device 4 is elastically connected at one end to the lower part of the movable plate 2, and the other end of the connecting device 4 is fixedly connected to the lower part of the partition plate 3.

[0041] Sensor 8 is located on the upper part of partition 3 and is used to detect the distance between movable plate 2 and partition 3.

[0042] Alarm device 6, which is used to issue an alarm when the distance between the movable plate 2 and the partition 3 is less than a preset distance;

[0043] The control device, sensor 8 and alarm device 6 are all connected to the control device.

[0044] In practical applications, the shape, structure, position, and type of the outer shell 1, movable plate 2, partition 3, connecting device 4, sensor 8, alarm device 6, and control device can be determined according to the actual situation and needs.

[0045] When using the hopper blockage detection device provided by this utility model, when material blockage occurs, the material in the hopper will accumulate, thereby squeezing the movable plate 2. This causes the upper part of the movable plate 2 to move laterally along the fixed end of the connecting device 4. As the movable plate 2 approaches the partition 3, the distance between the movable plate 2 and the partition 3 gradually decreases. The sensor 8 can detect this distance change signal in real time and transmit it to the control device. When the distance between the movable plate 2 and the partition 3 is less than the preset distance, the control device can control the conveying system to stop the conveying operation. At the same time, the control device controls the alarm device 6 to issue an alarm, reminding on-site personnel of the blockage fault so that on-site personnel can quickly and promptly clear the material. After the material is cleared, the movable plate 2 can be reset under the elastic force of the elastic end of the connecting device 4 so that the device can continue to detect blockage.

[0046] By using this device, losses caused by material blockage can be significantly reduced on-site. It allows for timely fault detection and rapid shutdown, minimizing losses. This has significant practical implications for reducing labor intensity and improving equipment stability and reliability, and plays a positive role in the safe and efficient transportation of belt conveyors across various industries. In other words, this device is a simple, easy-to-install, reliable, and fast-responding material blockage detection system. Once a material blockage is detected during equipment operation, it can promptly stop the conveyor system to prevent damage to the equipment.

[0047] In summary, the hopper blockage detection device provided by this utility model can solve the problem of hopper blockage during the loading and unloading process of material transfer in the conveying system, and avoid damage to the equipment caused by the expansion of the blockage fault.

[0048] In one embodiment, the movable plate 2 includes an iron plate to prevent material blockage from causing deformation of the movable plate 2 when the material squeezes it, which could affect the movable plate 2's proximity to the partition 3 and trigger an alarm.

[0049] In one embodiment, such as Figure 1 As shown, the connecting device 4 includes a spring and an adjusting bolt. One end of the spring is located on the movable plate 2, and the other end of the spring is connected to one end of the adjusting bolt. The other end of the adjusting bolt is located on the partition plate 3. Therefore, when the movable plate 2 is squeezed by the material, the movable plate 2 can compress the spring, causing the movable plate 2 to move closer to the partition plate 3. The sensor 8 can monitor the distance between the movable plate 2 and the partition plate 3 in real time. When the distance between the two is less than the preset distance, the alarm device 6 is controlled to sound an alarm to remind the operator to clear the blocked material in time.

[0050] In one embodiment, such as Figure 3As shown, two springs are symmetrically and flush on the movable plate 2, and two adjusting bolts are symmetrically and flush on the partition plate 3 to improve the structural stability of the movable plate 2 when it is close to the partition plate 3. When the material is cleared and no longer blocked, the movable plate 2 can return to the initial vertical state under the elastic force of the spring to deactivate the alarm device 6.

[0051] In one embodiment, such as Figure 1 As shown, the bottom of the movable plate 2 is rotatably mounted on the bottom of the outer casing 1 by bolts and angle steel 5. Fixing the angle steel 5 to the bottom of the outer casing 1 with bolts requires careful arrangement of the angle steel 5 and the number of bolts to ensure that the movable plate 2 can rotate at the hinge point (i.e., the free end of the movable plate 2 can rotate around the angle steel 5) while maintaining the overall stability of the movable plate 2.

[0052] In one embodiment, the sensor 8 includes a proximity switch. The proximity switch is a non-contact sensor primarily used to detect the distance between the movable plate 2 and the partition 3. When the distance between them is less than a preset distance, the control device sends an alarm signal to the alarm device 6, and can control the belt conveyor to stop, preventing continued material transport and thus avoiding further blockage.

[0053] It should be further explained that when material blockage occurs in the conveyor belt hopper, once the material exceeds a certain height, it will compress the movable plate 2. When the movable plate 2 and the proximity switch on the partition plate 3 reach a certain distance (i.e., the distance between the movable plate 2 and the partition plate 3 is less than the preset distance), the proximity switch 8 is triggered. At this time, the proximity switch 8 will send two sets of signals to the control device: a warning signal from the alarm device 6 and a stop signal from the conveyor belt. The alarm device 6 will emit a warning sound to remind the on-site personnel of the fault location; the conveyor belt stop signal will be fed back to the conveyor belt PLC control system, and the PLC control system will issue a stop command; after the material is cleared, the movable plate 2 will be subjected to the outward elastic force of the spring and return to its original vertical state. The movable plate 2 and the proximity switch will return to their initial distance. At this time, the stop signal and the warning signal from the alarm device 6 will be cleared, and the equipment will return to normal operation.

[0054] In one embodiment, the alarm device 6 includes an audible and visual alarm.

[0055] It should be noted that the audible and visual alarm consists of a signal processing unit, a sound-generating unit, and a light-emitting unit. The alarm device 6 can receive electrical signals from the control device. The sound is played through the built-in sound-generating unit (such as a buzzer or speaker) in a preset tone (such as a siren or voice prompt). At the same time, the light-emitting unit (LED beads or xenon lamps) produces high-brightness flashing / rotating light, usually in bright colors such as red, yellow, or blue, to achieve the alarm purpose by emitting audible and visual alarm signals.

[0056] In one embodiment, the control device includes a power supply 9, a terminal block 10, a relay 7 (24V), and a PLC. The terminal block 10 and the relay 7 are both connected to the power supply 9, the sensor 8 and the alarm device 6 are both connected to the relay 7, and the terminal block 10 is connected to the PLC.

[0057] It should be noted that when material blockage occurs, when the movable iron plate 2 is squeezed by external force, the movable iron plate 2 will move along the direction of the adjusting bolt. When the movable iron plate 2 approaches the proximity switch, the proximity switch will send a switching signal to the relay 7. The relay 7 will feed the signal back to the host computer of the PLC (which can also control the conveying process of the belt conveyor). The host computer will issue a stop command, causing the belt conveyor to stop the conveying operation.

[0058] That is, the proximity switch (24V) will send two sets of signals through relay 7: a warning signal KA1 from the audible and visual alarm (24V) and a stop signal KA2 from the belt conveyor. The circuit connection diagram is shown below. Figure 4 and Figure 5 As shown in the diagram. The audible and visual alarm emits a warning sound to alert on-site personnel to the location of the fault; the conveyor belt stop signal is fed back to the PLC, and the PLC's host computer issues a stop command; after the material is removed by the operator, the movable plate 2 is subjected to outward pressure (i.e., elastic force) from the spring, returning to its original vertical state. The movable plate 2 and the proximity switch return to their initial distance, the conveyor belt stop signal and the audible and visual alarm warning signal are cleared, and the equipment returns to normal operation.

[0059] By using the aforementioned material blockage device, losses caused by material blockage can be significantly reduced on-site. Timely fault detection and rapid shutdown minimize losses, significantly reducing labor intensity and improving equipment stability and reliability. This device positively impacts the safe and efficient transportation of belt conveyors across various industries. It is suitable for detecting blockages in various solid materials, highly practical, and widely applicable.

[0060] In one embodiment, a door 11 is provided on the side of the outer casing 1 away from the opening, and the door 11 and the outer casing 1 are detachably connected. Therefore, if the components inside the cavity of the outer casing 1 are damaged, the components inside the cavity can be directly replaced or repaired by opening the door 11, thereby improving the service life and performance of the device.

[0061] In one embodiment, the door 11 is provided with an observation window 12, wherein the partition 3 can be set as a transparent plate, and the operator can see the situation inside the cavity of the outer shell 1 through the observation window 12. Moreover, the partition 3 is a transparent plate, so that the operator can also directly observe whether the movable plate 2 is squeezed. If the movable plate 2 is excessively squeezed, it indicates that a serious material blockage has occurred. At this time, the operator needs to perform a material removal operation as soon as possible.

[0062] This device, developed through trial application in a metal mine belt conveyor system, primarily addresses the problem of material blockage in the loading and unloading hoppers during material transfer. It prevents damage to equipment caused by escalating blockages and minimizes production disruptions, demonstrating its high practicality. The device features a simple structure, requiring only standard materials and spare parts such as iron plates, proximity switches, springs, and screws, resulting in a straightforward manufacturing process. It is suitable for transferring any solid material, offering a wide range of applications. Furthermore, in the event of a blockage, the proximity switch signal controls a relay to feed back the blockage signal to the PLC, stopping the belt conveyor and simultaneously activating an audible and visual alarm, providing a voice alert to on-site personnel regarding the location of the fault.

[0063] Furthermore, after the material is cleared, the movable plate 2 automatically returns to its initial state under the action of the spring force, which helps reduce maintenance workload. In addition, the material only contacts the movable plate 2 and does not come into contact with the partition 3 or the electrical components on the other side of the partition 3. This means that the device effectively seals and protects the electrical components through the partition 3, thus extending their service life. In summary, this device significantly reduces losses caused by material blockages on-site, enabling timely fault detection and rapid shutdown to minimize losses. It has great practical significance in reducing manual labor intensity and improving equipment stability and reliability, and plays a positive role in the safe and efficient transportation of belt conveyors in various industries.

[0064] In addition, it should be noted that the orientation or positional relationship indicated by "horizontal", "vertical", etc. in this application is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the purpose of simplifying the description and making it easier to understand, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0065] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this utility model is within the protection scope of this utility model and will not be elaborated upon here.

[0066] The hopper blockage detection device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A hopper blockage detection device, characterized in that, include: The outer shell (1) is located on one side of the hopper, and the outer shell (1) has an opening communicating with one side of the hopper; The movable plate (2) is vertically disposed at the opening, and the bottom of the movable plate (2) is hinged inside the outer shell (1), and the top of the movable plate (2) is a free end; A partition (3) is fixedly disposed in the cavity of the outer shell (1), and the partition (3) is disposed parallel to one side of the movable plate (2); A connecting device (4) is elastically connected at one end to the lower part of the movable plate (2), and the other end of the connecting device (4) is fixedly connected to the lower part of the partition plate (3); A sensor (8) is disposed on the upper part of the partition (3), and the sensor (8) is used to detect the distance between the movable plate (2) and the partition (3); An alarm device (6) is used to issue an alarm when the distance between the movable plate (2) and the partition (3) is less than a preset distance; The control device is connected to both the sensor (8) and the alarm device (6).

2. The hopper blockage detection device according to claim 1, characterized in that, The movable plate (2) includes an iron plate.

3. The hopper blockage detection device according to claim 1, characterized in that, The connecting device (4) includes a spring and an adjusting bolt. One end of the spring is located on the movable plate (2), and the other end of the spring is connected to one end of the adjusting bolt. The other end of the adjusting bolt is located on the partition plate (3).

4. The hopper blockage detection device according to claim 3, characterized in that, Two springs are symmetrically and flush on the movable plate (2), and two adjusting bolts are symmetrically and flush on the partition plate (3).

5. The hopper blockage detection device according to any one of claims 1 to 4, characterized in that, The bottom of the movable plate (2) is rotatably mounted on the bottom of the outer shell (1) by bolts and angle steel (5).

6. The hopper blockage detection device according to any one of claims 1 to 4, characterized in that, The sensor (8) includes a proximity switch.

7. The hopper blockage detection device according to any one of claims 1 to 4, characterized in that, The alarm device (6) includes an audible and visual alarm.

8. The hopper blockage detection device according to any one of claims 1 to 4, characterized in that, The control device includes a power supply (9), a terminal block (10), a relay (7), and a PLC. The terminal block (10) and the relay (7) are both connected to the power supply (9). The sensor (8) and the alarm device (6) are both connected to the relay (7). The terminal block (10) is connected to the PLC.

9. The hopper blockage detection device according to any one of claims 1 to 4, characterized in that, The outer shell (1) has a door (11) on the side away from the opening, and the door (11) and the outer shell (1) are detachably connected.

10. The hopper blockage detection device according to claim 9, characterized in that, The box door (11) is provided with an observation window (12).

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