Centralized control system for vertical and continuous belt conveyors

Through the real-time detection of transportation volume and current by vertical and continuous belt conveyor centralized control system, the problems of vertical belt conveyor current overload and uneven material accumulation are solved, and the stability and efficiency of material transportation are improved.

CN120246582APending Publication Date: 2025-07-04CHINA COAL TECH & ENG GRP SHANGHAI
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Patent Information

Application Number
CN202510610729.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

In the long-distance space material transportation, especially when the vertical lifting angle is large, the existing belt conveyor control system cannot quickly and effectively adjust the working state of the vertical belt conveyor, resulting in current overload and shutdown, affecting the reliability and efficiency of material transportation.

Method used

The vertical and continuous belt drive centralized control system is adopted to detect the transportation volume in real time and generate signals through the continuous belt control mechanism. The vertical belt control mechanism detects the current in real time, and controls the working state of the vertical belt drive separately to prevent shutdown caused by overload and uneven material accumulation.

Benefits of technology

It realizes that when the continuous belt conveyor is transported too much or the material accumulation is uneven, the working status of the vertical belt conveyor is adjusted in time, ensuring the stability and efficiency of material transportation and avoiding overload and shutdown.

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Abstract

The invention discloses a vertical and continuous belt conveyor centralized control system, which detects the transportation volume of a continuous belt conveyor in real time through a continuous belt control mechanism, controls the working state of a vertical belt conveyor in time through a vertical belt control mechanism, and prevents overload shutdown caused by the increase of the transportation volume of the vertical belt conveyor due to the overlarge transportation volume of the continuous belt conveyor. Meanwhile, the vertical belt control mechanism can detect the working current of the vertical belt conveyor in real time and control the working state of the vertical belt conveyor in time, and overload shutdown caused by rising of the instantaneous current of the vertical belt conveyor due to uneven accumulation of materials on the continuous belt conveyor is prevented. Therefore, the working state of the vertical belt conveyor is controlled in time under the two conditions that the continuous belt conveyor is too large in transportation amount and materials are not stacked uniformly, so that the material transportation efficiency and stability are guaranteed.
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Description

Technical Field

[0001] The present invention relates to the technical field of belt conveyors, and particularly to the control system of conveyors. Background Art

[0002] For long-distance spaces such as tunnels and subways, continuous belt conveyors distributed horizontally and vertical lifting belt conveyors are often used in combination for material transportation. In the existing belt conveyor control system, the continuous belt conveyor and the vertical belt conveyor are usually controlled online, and the start / stop and working states of the continuous belt conveyor and the vertical belt conveyor are synchronously controlled.

[0003] For a vertical belt conveyor with a large lifting angle, such as a 90° lifting angle, it is necessary to overcome the gravity of the material and the corrugated sidewall belt at the same time. When the feeder discharges unevenly or the transportation volume of the continuous belt conveyor increases, the material transported to the vertical belt conveyor will cause the motor current of the vertical belt conveyor to increase, resulting in overload shutdown of the vertical belt conveyor, and thus the material cannot be transported efficiently and reliably.

[0004] Therefore, how to enable the belt conveyor control system to quickly and effectively adjust the working state of the vertical belt conveyor according to the material transportation situation, prevent the vertical belt conveyor from stopping due to current overload, and improve the reliability of material transportation has become an urgent problem to be solved in this field. Summary of the Invention

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide a centralized control system for vertical and continuous belt conveyors that can quickly adjust the working state of the vertical belt conveyor and ensure the material transportation efficiency and stability.

[0006] To achieve the above purpose, the present invention provides a centralized control system for vertical and continuous belt conveyors, which is used in cooperation with a vertical belt conveyor and a continuous belt conveyor, and includes a vertical belt control mechanism and a continuous belt control mechanism.

[0007] The continuous belt control mechanism is connected to the continuous belt conveyor, and is configured to be able to detect the transportation volume of the continuous belt conveyor in real time, generate a signal indicating an increase in transportation volume, and transmit it to the vertical belt control mechanism.

[0008] The vertical belt control mechanism is connected to the vertical belt conveyor, and is configured to be able to control the working state of the vertical belt conveyor according to the signal indicating an increase in transportation volume, and can also detect the working current of the vertical belt conveyor in real time, generate a signal indicating an increase in current, so as to synchronously control the working state of the vertical belt conveyor.

[0009] Further, the vertical belt control mechanism includes a vertical belt control cabinet, a frequency converter, and a variable-frequency motor. The vertical belt control cabinet is connected to the frequency converter through a signal line. The frequency converter is connected to the variable-frequency motor through a power line. The variable-frequency motor is configured to drive the vertical belt conveyor to rotate.

[0010] Further, the variable-frequency motor is connected to the driving roller of the vertical belt conveyor.

[0011] Further, the continuous belt control mechanism includes a continuous belt control cabinet and a belt scale. The belt scale is connected to the continuous belt control cabinet through a signal line. The continuous belt control cabinet is connected to the vertical belt control cabinet through an optical cable.

[0012] Further, the belt scale is arranged at the bottom of the belt of the continuous belt conveyor.

[0013] Further, PLC controllers are respectively provided in the vertical belt control cabinet and the continuous belt control cabinet.

[0014] The vertical and continuous belt conveyor centralized control system provided by the present invention can detect the transportation volume of the continuous belt conveyor in real time through the continuous belt control mechanism, and control the working state of the vertical belt conveyor in time through the vertical belt control mechanism, preventing the overload shutdown caused by the increase in the transportation volume of the vertical belt conveyor due to the excessive transportation volume of the continuous belt conveyor. At the same time, the vertical belt control mechanism can also detect the working current of the vertical belt conveyor in real time and control the working state of the vertical belt conveyor in time, preventing the overload shutdown caused by the instantaneous current rise of the vertical belt conveyor due to the uneven accumulation of materials on the continuous belt conveyor. Therefore, in the two cases of excessive transportation volume of the continuous belt conveyor and uneven accumulation of materials, the working state of the vertical belt conveyor is controlled in time to ensure the material transportation efficiency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of the vertical and continuous belt conveyor centralized control system provided by the present invention;

[0017] Figure 2 It is a system block diagram of the vertical and continuous belt conveyor centralized control system provided by the present invention.

[0018] Reference numerals:

[0019] 1. Vertical belt conveyor;

[0020] 2. Continuous belt conveyor;

[0021] 3. Vertical belt control mechanism; 31. Vertical belt control cabinet; 32. Frequency converter; 33. Variable-frequency motor;

[0022] 4. Continuous belt control mechanism; 41. Continuous belt control cabinet; 42. Belt scale;

[0023] 5. Signal line; 6. Optical cable; 7. Power line. Detailed implementation manner

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0025] See Figure 1 and Figure 2 , which shows an example of the vertical and continuous belt machine centralized control system provided by the present invention.

[0026] As can be seen from the figure, the vertical and continuous belt machine centralized control system of this example cooperates with the vertical belt machine 1 and the continuous belt machine 2, and mainly includes a vertical belt control mechanism 3 and a continuous belt control mechanism 4.

[0027] The continuous belt control mechanism 4 is connected to the continuous belt machine 2, and the continuous belt control mechanism 4 is configured to be able to detect the transportation volume of the continuous belt machine 2 in real time to generate a signal of increased transportation volume and transmit it to the vertical belt control mechanism 3; the vertical belt control mechanism 3 is connected to the vertical belt machine 1, and the vertical belt control mechanism 3 is configured to be able to control the working state of the vertical belt machine 1 corresponding to the signal of increased transportation volume, and can also detect the working current of the vertical belt machine 1 in real time to generate a signal of current rise to synchronously control the working state of the vertical belt machine 1, so that the vertical belt control mechanism 3 and the continuous belt control mechanism 4 cooperate with each other to timely control the working state of the vertical belt machine 1 in two cases of excessive transportation volume of the continuous belt machine and uneven material accumulation, so as to ensure the material transportation efficiency and stability.

[0028] Among them, the continuous belt machine 2 is horizontally distributed and is lapped and cooperated with the vertical belt machine 1 at one end, so that the materials on the continuous belt machine 2 can be stably and smoothly transported to the vertical belt machine 1. Therefore, excessive transportation volume and uneven material accumulation on the continuous belt machine 2 will affect the working state of the vertical belt machine 1.

[0029] Furthermore, the continuous belt control mechanism 4 includes a continuous belt control cabinet 41 and a belt scale 42. The belt scale 42 is arranged below the connecting belt machine 2, specifically at the bottom of the belt of the continuous belt machine 2, so that the belt scale can detect and weigh the transportation volume on the continuous belt machine 2 in real time. A transportation volume threshold is preset in the belt scale 42. If it is detected that the transportation volume on the continuous belt machine 2 is greater than the transportation volume threshold, the belt scale 42 determines that the transportation volume is excessive and generates a signal of increased transportation volume.

[0030] Here, the belt scale 42 is a conventional technical means in the art and will not be elaborated here. In addition, the preset transportation volume threshold for the belt scale 42 is not limited, and it is necessary to ensure that the transportation volume threshold is adapted to the load-bearing and transportation capabilities of the continuous belt conveyor 2 and the vertical belt conveyor 1.

[0031] At the same time, the belt scale 42 is also connected to the continuous belt control cabinet 41 through the signal line 5, so that the belt scale 42 can transmit the transportation volume increase signal to the continuous belt control cabinet 41 through the signal line 5, thereby reflecting the transportation volume state on the continuous belt conveyor 2.

[0032] In cooperation with this, the continuous belt control cabinet 41 is connected to the vertical belt control cabinet 3 through the optical cable 6, so that the continuous belt control cabinet 41 can transmit the transportation volume increase signal to the vertical belt control cabinet 3 through the optical cable 6, so that the vertical belt control cabinet 3 can correspondingly control the working state of the vertical belt conveyor 1 according to the transportation volume increase signal, and prevent the vertical belt conveyor 1 from overloading and stopping when the materials on the continuous belt conveyor 2 are transmitted to the vertical belt conveyor 1.

[0033] Furthermore, the vertical belt control mechanism 3 includes a vertical belt control cabinet 31, a frequency converter 32 and a variable-frequency motor 33. The vertical belt control cabinet 31 is connected to the frequency converter 32 through the signal line 5, and the frequency converter 32 is connected to the variable-frequency motor 33 through the power line 7. At the same time, the variable-frequency motor 33 is connected to the vertical belt conveyor 1 and is configured to drive the vertical belt conveyor 1 to rotate. For example, the variable-frequency motor 33 is connected to the driving roller of the vertical belt conveyor 1 to drive the vertical belt conveyor 1 to rotate.

[0034] In this way, the vertical belt control cabinet 31 can receive the transportation volume increase signal to control the operation of the frequency converter 32, so that the frequency converter 32 increases the power and speed of the variable-frequency motor 33, thereby increasing the working frequency and rotation speed of the vertical belt conveyor 1. When the materials on the continuous belt conveyor 2 are transmitted to the vertical belt conveyor 1, the vertical belt conveyor 1 can stably transport the materials and will not overload and stop due to excessive transportation volume.

[0035] Correspondingly, if the transportation volume on the continuous belt conveyor 2 decreases and the belt scale 42 detects that the transportation volume on the continuous belt conveyor 2 is less than the transportation volume threshold, the belt scale 42 will no longer generate a transportation volume increase signal, so that the vertical belt control cabinet 31 will no longer receive the transportation volume increase signal, thereby controlling the frequency converter 32 to restore the power and speed of the variable-frequency motor 33, and thus restoring the working frequency and rotation speed of the vertical belt conveyor 1 to the initial working state, avoiding long-term high-power operation of the vertical belt conveyor 1, and saving energy and protecting the environment.

[0036] The continuous belt control mechanism 4 thus formed can cooperate with the vertical belt control mechanism 3 to detect the transportation volume of the continuous belt conveyor 2 in real time, and correspondingly control the working frequency and rotation speed of the vertical belt conveyor 1, improve the working stability of the vertical belt conveyor 1, prevent the vertical belt conveyor 1 from overloading and stopping due to excessive transportation volume, and can effectively transport materials.

[0037] Further, when the materials on the continuous belt conveyor 2 are unevenly distributed and accumulate in a local area of the continuous belt conveyor 2, the instantaneous transfer of the materials on the continuous belt conveyor 2 to the vertical belt conveyor 1 will cause the working current of the vertical belt conveyor 1 to rise rapidly.

[0038] In order to prevent the working current of the vertical belt conveyor 1 from rising due to uneven accumulation of materials on the continuous belt conveyor 2 and causing overload shutdown, the vertical belt control cabinet 31 can also detect the working current of the frequency conversion motor 33 in real time.

[0039] Specifically, the frequency converter 32 transmits the working current of the frequency conversion motor 33 to the vertical belt control cabinet 31 through the signal line 5. A current threshold is preset in the vertical belt control cabinet 31. When it is detected that the working current of the frequency conversion motor 33 is greater than the current threshold, the vertical belt control cabinet 31 determines that the material accumulation is uneven and generates a current rise signal.

[0040] Here, the current threshold preset for the vertical belt control cabinet 31 is not limited, and it is necessary to ensure that the current threshold is adapted to the normal working transportation capacity of the vertical belt conveyor 1.

[0041] Further, the vertical belt control cabinet 31 synchronously controls the operation of the frequency converter 32 according to the current rise signal, so that the frequency converter 32 increases the power and speed of the frequency conversion motor 33, thereby increasing the working frequency and rotation speed of the vertical belt conveyor 1.

[0042] Correspondingly, when the vertical belt control cabinet 31 detects that the working current of the frequency conversion motor 33 is less than the current threshold, it no longer generates a current rise signal, thereby controlling the frequency converter 32 to restore the power and speed of the frequency conversion motor 33, and restoring the working frequency and rotation speed of the vertical belt conveyor 1 to the initial working state, avoiding long-term high-power operation of the vertical belt conveyor 1, and saving energy and protecting the environment.

[0043] The vertical belt control mechanism 3 thus constituted can detect the working current of the vertical belt conveyor 1 in real time, and correspondingly control the working frequency and rotation speed of the vertical belt conveyor 1, improve the working stability of the vertical belt conveyor 1, prevent the vertical belt conveyor 1 from being overloaded and shut down due to uneven material accumulation, and can effectively transport materials.

[0044] Here, the vertical belt control cabinet 31 and the continuous belt control cabinet 41 are conventional technical means in the art. By way of example, PLC controllers are respectively provided in the vertical belt control cabinet 31 and the continuous belt control cabinet 41 to ensure the stable operation of the vertical belt control cabinet 31 and the continuous belt control cabinet 41, and at the same time enable the vertical belt control cabinet 31 to detect the working current of the frequency conversion motor 33.

[0045] The working process of the present invention in specific applications is illustrated by the following examples. It should be noted here that the described content is only a specific application example of this solution and does not limit this solution.

[0046] The continuous belt control mechanism 4 continuously detects the transportation volume of the continuous belt conveyor 2, generates a signal indicating an increase in the transportation volume, and transmits it to the vertical belt control mechanism 3. The vertical belt control mechanism 3 receives the signal indicating an increase in the transportation volume and controls the working state of the frequency conversion motor 33 of the vertical belt conveyor 1 to prevent the vertical belt conveyor 1 from being overloaded and stopped due to excessive transportation volume.

[0047] Specifically, the belt scale 42 continuously detects and weighs the transportation volume on the continuous belt conveyor 2. If it detects that the transportation volume on the continuous belt conveyor 2 is greater than the transportation volume threshold, the belt scale 42 determines that the transportation volume is excessive, generates a signal indicating an increase in the transportation volume, and transmits the signal indicating an increase in the transportation volume to the continuous belt control cabinet 41 through the signal line 5.

[0048] Furthermore, the continuous belt control cabinet 41 transmits the signal indicating an increase in the transportation volume to the vertical belt control cabinet 3 through the optical cable 6. The vertical belt control cabinet 3 receives the signal indicating an increase in the transportation volume and controls the frequency converter 32 to work, so that the frequency converter 32 increases the power and speed of the frequency conversion motor 33, thereby increasing the working frequency and rotation speed of the vertical belt conveyor 1. When the materials on the continuous belt conveyor 2 are transported to the vertical belt conveyor 1, the vertical belt conveyor 1 can stably transport the materials and will not be overloaded and stopped due to excessive transportation volume.

[0049] At the same time, the vertical belt control mechanism 3 continuously detects the working current of the vertical belt conveyor 1, generates a signal indicating an increase in the current, and controls the working state of the frequency conversion motor 33 of the vertical belt conveyor 1 to prevent the vertical belt conveyor 1 from being overloaded and stopped due to uneven accumulation of materials.

[0050] Specifically, the vertical belt control cabinet 31 continuously detects the working current of the frequency conversion motor 33. When it detects that the working current of the frequency conversion motor 33 is greater than the current threshold, the vertical belt control cabinet 31 determines that the materials are unevenly accumulated, generates a signal indicating an increase in the current, and synchronously controls the frequency converter 32 to work, so that the frequency converter 32 increases the power and speed of the frequency conversion motor 33, thereby increasing the working frequency and rotation speed of the vertical belt conveyor 1, and preventing the working current of the vertical belt conveyor 1 from instantaneously rising due to uneven accumulation of materials and causing overload shutdown.

[0051] The centralized control system for vertical and continuous belt conveyors provided by the present invention, through the cooperation of the vertical belt control mechanism 3 and the continuous belt control mechanism 4 with the vertical belt conveyor 1 and the continuous belt conveyor 2 respectively, timely controls the working state of the vertical belt conveyor 1 in the two cases of excessive transportation volume of the continuous belt conveyor and uneven accumulation of materials, so as to ensure the material transportation efficiency and stability.

[0052] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A centralized control system for a vertical and continuous belt conveyor, which is used in cooperation with a vertical belt conveyor and a continuous belt conveyor, is characterized in that, It includes a vertical belt control mechanism and a continuous belt control mechanism. The continuous belt control mechanism is connected to the continuous belt conveyor. The continuous belt control mechanism is configured to be able to detect the transportation volume of the continuous belt conveyor in real time to generate a signal indicating an increase in the transportation volume and transmit it to the vertical belt control mechanism. The vertical belt control mechanism is connected to the vertical belt conveyor. The vertical belt control mechanism is configured to be able to correspondingly control the working state of the vertical belt conveyor according to the signal indicating an increase in the transportation volume, and can also detect the working current of the vertical belt conveyor in real time to generate a signal indicating an increase in current to synchronously control the working state of the vertical belt conveyor.

2. The vertical and continuous belt conveyor centralized control system according to claim 1, characterized in that, The vertical belt control mechanism includes a vertical belt control cabinet, a frequency converter, and a variable-frequency motor. The vertical belt control cabinet is connected to the frequency converter through a signal line, and the frequency converter is connected to the variable-frequency motor through a power line. The variable-frequency motor is configured to be able to drive the vertical belt conveyor to rotate.

3. The vertical and continuous belt conveyor centralized control system according to claim 2, characterized in that The variable-frequency motor is connected to the driving roller of the vertical belt conveyor.

4. The vertical and continuous belt conveyor centralized control system according to claim 2, wherein, The continuous belt control mechanism includes a continuous belt control cabinet and a belt scale. The belt scale is connected to the continuous belt control cabinet through a signal line, and the continuous belt control cabinet is connected to the vertical belt control cabinet through an optical cable.

5. The vertical and continuous belt conveyor centralized control system according to claim 4, characterized in that The belt scale is arranged at the bottom of the belt of the continuous belt conveyor.

6. The vertical and continuous belt conveyor centralized control system according to claim 4, characterized in that PLC controllers are respectively provided in the vertical belt control cabinet and the continuous belt control cabinet.