Blockage detection device for belt conveyor

Abstract

The utility model discloses a material blocking detection device of a belt conveyor. The material blocking detection device comprises a conveying belt, a discharging groove, a support, a motor, a discharging baffle, a hanging baffle, a proximity switch, a controller and the like. The conveying belt is installed at the upper end of the support, and the discharging groove is smoothly connected and fixed to an outlet of the conveying belt. A cavity is formed by the discharging baffle and the discharging groove, a hanging baffle and a proximity switch are rotationally installed in the cavity, and the controller is in signal connection with the proximity switch. And the suspension baffle is matched with the rotating shaft through the rotating shaft hole and is provided with a sealing lip. When the device works, tension of material accumulation pushes the suspension baffle to trigger the proximity switch, a signal is transmitted to the controller, and the controller is interlocked with upstream and downstream equipment through a DCS (Distributed Control System) to send out a shutdown signal. Compared with the prior art, the device has the beneficial effects of automatic detection and response, accurate triggering, simple structure, high adaptability and the like, production faults and equipment damage caused by material blockage can be avoided, and the production stability and continuity are improved.

Description

Technical Field

[0001] The utility model relates to an automatic control device for a belt conveyor, in particular to a material blocking detection device for a belt conveyor. Background Art

[0002] In modern industrial production, belt conveyors, as important material conveying equipment, are widely used in many fields such as mines, power plants, chemical industries, and metallurgy. However, belt conveyors often face the thorny problem of material blocking during operation. Once the material blocking phenomenon occurs, the consequences are quite serious. It will not only cause a large amount of material accumulation during transportation, affecting the normal production process, but also may exert great pressure on the key components of the belt conveyor, resulting in equipment damage, increasing maintenance costs and downtime, thus bringing economic losses to enterprises. In addition, in some industries with extremely high requirements for production continuity, such as the chemical and power industries, the material blocking of belt conveyors may even cause the entire production line to stagnate, affecting the timely delivery of products and the reputation of enterprises. The previous material blocking detection methods have many deficiencies. Some detection devices can only issue an alarm when the material accumulates to a certain extent, with a slow response and unable to take timely measures in the initial stage of material blocking; some are greatly interfered by environmental factors, with inaccurate detection results, resulting in frequent misjudgments or missed judgments; and some devices have poor compatibility with belt conveyors, with complex installation and maintenance, increasing the operating costs of enterprises. In view of the above situation, it has become an urgent task to develop a new type, efficient, accurate and easy-to-install and maintain material blocking detection device for belt conveyors to meet the requirements of industrial production for the reliability and stability of material transportation. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a material blocking detection device for a belt conveyor. During the process of material accumulation in the blanking chute of the belt conveyor, the generated tension will push the hanging baffle. After the hanging baffle moves outwards, it will trigger a proximity switch to send a signal to send an automatic execution stop signal to the upstream and downstream equipment.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A belt conveyor material blockage detection device, comprising a conveyor belt (1), a feeding chute (2), a bracket (3), and a motor (5), characterized in that it further comprises a feeding baffle (11), a hanging baffle (12), a proximity switch (13), and a controller (4); the conveyor belt (1) is fixedly installed at the upper end of the bracket (3), the connecting end of the feeding chute (2) is smoothly connected to the outlet of the conveyor belt (1) and is fixed to the inner side of the support leg of the bracket (3), the feeding baffle (11) is installed in the middle of the connecting end and the bottom of the feeding chute (2), and a cavity is formed between the bottom and the side wall of the feeding chute (2), a hanging baffle (12) is rotatably installed near the outside of the cavity, and a proximity switch (13) is installed deep in the cavity.

[0006] A sealing lip (121) is provided on the side of the hanging baffle (12), and the hanging baffle (12) is attached to the bottom and side of the rotating shaft through the sealing lip (121).

[0007] A rotating shaft hole (122) is provided at the upper side end of the hanging baffle (12), the rotating shaft hole is rotationally matched with a rotating shaft (123), and the rotating shaft (123) is fixedly installed on the inner side surface of the feeding chute (2).

[0008] The controller (4) is installed on the side of the conveyor belt (1) and is signal-connected to the proximity switch (13).

[0009] The proximity switch (13) uses the touch of the hanging baffle (12) as a trigger condition and transmits the trigger signal to the controller (4).

[0010] The controller (4) sets the proximity switch trigger signal to be interlocked with the upstream and downstream equipment through the DCS system, and sends an automatic execution stop signal to the upstream and downstream equipment simultaneously after detecting the signal.

[0011] The conveyor belt (1) is powered by a motor (5) installed at the bottom through a belt.

[0012] In practical applications, the conveyor belt (1) is firmly installed at the upper end of the bracket (3) and powered by a motor (5) at the bottom through a belt. The connecting end of the feeding chute (2) is smoothly connected to the outlet of the conveyor belt (1) and fixed inside the support legs of the bracket (3). A feeding baffle (11) is installed in the middle of the connecting end and the bottom of the feeding chute (2), forming a cavity with the bottom and side walls of the feeding chute (2). At the outer part of this cavity, a hanging baffle (12) with a sealing lip (121) is rotatably installed through the cooperation of a rotating shaft hole (122) and a rotating shaft (123). The sealing lip (121) enables it to closely fit against the bottom and side of the rotating shaft. A proximity switch (13) is installed deep in the cavity. The controller (4) is installed on the side of the conveyor belt (1) and is signal-connected to the proximity switch (13). When the material accumulates and touches the hanging baffle (12), the proximity switch (13) is triggered and transmits a trigger signal to the controller (4). The controller (4) interlocks with the upstream and downstream equipment through the proximity switch trigger signal set by the DCS system. After detecting the signal, it will send an automatic shutdown signal to the upstream and downstream equipment simultaneously, effectively avoiding the further deterioration of the material blockage situation. For example, if the water content of the material is too high and it is prone to sticking together and causing blockage, the hanging baffle (12) will quickly respond, trigger the proximity switch (13), and stop the operation of the upstream and downstream equipment in a timely manner, ensuring the safety and stability of the entire conveying process.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Automatic detection and response: It can automatically detect the material blockage situation in the feeding chute of the belt conveyor and send a shutdown signal in a timely manner, avoiding production failures and equipment damage caused by the failure to detect material blockage in a timely manner, and improving the stability and continuity of production.

[0015] Precise triggering: The hanging baffle is triggered to actuate the proximity switch by the tension generated by the material accumulation. This triggering method is relatively accurate and reliable, reducing the possibility of false alarms and missed alarms.

[0016] Simple structure: The structure of the device is relatively simple, easy to install and maintain, reducing the equipment cost and maintenance difficulty.

[0017] Strong adaptability: It can effectively detect the material blockage situation for materials with different humidities, particle sizes, and characteristics, and has strong adaptability. Description of the Drawings

[0018] Figure 1 It is a three-dimensional front view structure diagram of a material blockage detection device for a belt conveyor of the present utility model;

[0019] Figure 2 It is a sectional view of a material blockage detection device for a belt conveyor of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of a material blockage detection device for a belt conveyor of the present utility model.

[0021] In the figure, 1 is the conveyor belt; 2 is the feeding chute; 3 is the bracket; 4 is the controller; 5 is the motor; 11 is the feeding baffle; 12 is the hanging baffle; 13 is the proximity switch; 121 is the sealing lip; 122 is the rotating shaft hole; 123 is the rotating shaft. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0023] As shown in the figure, a material blockage detection device for a belt conveyor includes a conveyor belt (1), a feeding chute (2), a bracket (3), and a motor (5). It is characterized in that it further includes a feeding baffle (11), a hanging baffle (12), a proximity switch (13), and a controller (4); the conveyor belt (1) is fixedly installed at the upper end of the bracket (3), the connecting end of the feeding chute (2) is smoothly connected to the outlet of the conveyor belt (1) and is fixed to the inner side of the support leg of the bracket (3), the feeding baffle (and the hanging baffle (12) is rotatably installed at a position closer to the outside in the cavity, and the proximity switch (13) is installed deep in the cavity.

[0024] The side of the hanging baffle (12) is provided with a sealing lip (121), and the hanging baffle (12) is attached to the bottom and side of the rotating shaft through the sealing lip (121).

[0025] The upper side end of the hanging baffle (12) is provided with a rotating shaft hole (122), the rotating shaft hole is rotationally matched with a rotating shaft (123), and the rotating shaft (123) is fixedly installed on the inner side surface of the feeding chute (2).

[0026] The controller (4) is installed on the side of the conveyor belt (1) and is signal-connected to the proximity switch (13).

[0027] The proximity switch (13) uses the touch of the hanging baffle (12) as a trigger condition and transmits the trigger signal to the controller (4).

[0028] The controller (4) sets the proximity switch trigger signal to be interlocked with the upstream and downstream equipment through the DCS system, and sends an automatic execution stop signal to the upstream and downstream equipment simultaneously after detecting the signal.

[0029] The conveyor belt (1) is powered by a motor (5) installed at the bottom through a belt.

[0030] In practical applications, the conveyor belt (1) is firmly installed at the upper end of the support (3) and powered by a motor (5) at the bottom through a belt. The connecting end of the feeding chute (2) is smoothly connected to the outlet of the conveyor belt (1) and fixed to the inner side of the support legs of the support (3). A feeding baffle (11) is installed in the middle of the connecting end and the bottom of the feeding chute (2), and it forms a cavity with the bottom and side walls of the feeding chute (2). Near the outer part of this cavity, a hanging baffle (12) with a sealing lip (121) is rotatably installed through the cooperation of a rotating shaft hole (122) and a rotating shaft (123). The sealing lip (121) enables it to closely fit against the bottom and side of the rotating shaft. A proximity switch (13) is installed deep in the cavity. The controller (4) is installed on the side of the conveyor belt (1) and is signal-connected to the proximity switch (13). When the hanging baffle (12) is touched due to material accumulation, the proximity switch (13) is triggered and transmits a trigger signal to the controller (4). The controller (4) is interlocked with the upstream and downstream equipment through the proximity switch trigger signal set by the DCS system. After detecting the signal, it will send automatic shutdown signals to the upstream and downstream equipment simultaneously, thus effectively avoiding the further deterioration of the material blockage situation. For example, if the water content of the material is too high and it is prone to sticking together and causing blockage, the hanging baffle (12) will quickly respond, trigger the proximity switch (13), and stop the operation of the upstream and downstream equipment in a timely manner to ensure the safety and stability of the entire conveying process.

Claims

1. A material blockage detection device for a belt conveyor, comprising a conveyor belt (1), a feeding chute (2), a bracket (3), and a motor (5). It is characterized by further comprising a feeding baffle (11), a hanging baffle (12), a proximity switch (13), and a controller (4); the conveyor belt (1) is fixedly installed at the upper end of the bracket (3), the connecting end of the feeding chute (2) is smoothly connected to the outlet of the conveyor belt (1) and is fixed to the inner side of the support leg of the bracket (3), the feeding baffle (11) is installed in the middle of the connecting end and the bottom of the feeding chute (2), and a cavity is formed between the bottom and the side wall of the feeding chute (2). A hanging baffle (12) is rotatably installed near the outer part of the cavity, and a proximity switch (13) is installed deep in the cavity.

2. The material blocking detection device for a belt conveyor according to claim 1, characterized in that: A sealing lip (121) is provided on the side of the hanging baffle (12), and the hanging baffle (12) is attached to the bottom and the side of the rotating shaft through the sealing lip (121).

3. The material blocking detection device for a belt conveyor according to claim 1, wherein: A rotating shaft hole (122) is provided at the upper side end of the hanging baffle (12), and the rotating shaft hole is rotationally matched with a rotating shaft (123), and the rotating shaft (123) is fixedly installed on the inner side surface of the feeding chute (2).

4. The material blocking detection device for a belt conveyor according to claim 1, wherein: The controller (4) is installed on the side of the conveyor belt (1) and is signal-connected to the proximity switch (13).

5. The material blocking detection device for a belt conveyor according to claim 1, wherein: The proximity switch (13) takes the touch of the hanging baffle (12) as a trigger condition and transmits a trigger signal to the controller (4).

6. The material blocking detection device for a belt conveyor according to claim 1, characterized in that: The controller (4) sets the proximity switch trigger signal to be interlocked with the upstream and downstream equipment through the DCS system, and after detecting the signal, automatically sends a shutdown signal to the upstream and downstream equipment at the same time.

7. A material blocking detection device for a belt conveyor according to claim 1, characterized in that: The conveyor belt (1) is powered by a motor (5) installed at the bottom through a belt.

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