A method and system for dumper operation in rainy season

Abstract

This invention discloses a method and system for unloading trucks using a tippler during rainy season operations. The method includes: activating the rainy season operation mode switch on the main control panel, causing the tippler to enter rainy season operation mode; acquiring a trigger signal from a proximity sensor located on the platform in front of the tippler's curved track; sending a trigger signal to the PLC control system when the truck bed is detected to have rotated to a set angle for drainage, and controlling the truck bed to drain water for a set duration based on the received trigger signal; after drainage is completed, controlling the tippler to continue rotating and acquiring trigger signals from the proximity sensor; and controlling the tippler to sequentially perform preset unloading operations when the truck beds are detected to have rotated to preset angles. This invention effectively reduces water accumulation in the truck bed, lowers the moisture content of the material to be unloaded, and enables normal unloading operations in rainy season environments.

Description

Technical Field

[0001] This invention relates to the field of tippler control technology, specifically to a tippler unloading method and system for rainy season operations. Background Technology

[0002] Normal unloading process of a tippler: After the heavy car is clamped by the tippler's pressure beam and backing plate, it starts at low speed and then flips at high speed. After running at high speed for a certain period of time, it rotates at low speed and flips to the end position and stops. After stopping at the end position for a period of time, it automatically returns.

[0003] Current problems: Because the train carriages are all open-top, during the rainy season, a significant amount of water accumulates inside the carriages after long-distance transport. If the carriage doors are opened to release water, materials will leak out. If the tipper operates in normal mode, a carriage of material tipping into the silo will inevitably cause a "silo spillage accident," clogging the silo and flooding equipment such as conveyor belts, resulting in equipment damage, economic losses, and disruption to unloading operations. Under normal circumstances, unloading can only be temporarily suspended, waiting for the water in the carriages to settle and leak naturally before unloading. This causes a backlog of trains, resulting in fines for train stoppages, and also prevents the timely unloading and supply of raw materials, severely impacting normal production. Summary of the Invention

[0004] This invention provides a method and system for unloading vehicles using a tippler during the rainy season. By activating the rainy season operation mode, the system acquires the trigger signal from the proximity sensor during the tippler's tipping process and sends it to the PLC control program. The PLC control program controls the truck bed to drain water for a set duration based on the trigger signal. After drainage is completed, the tippler continues to tip over multiple times to reduce the water accumulation in the truck bed, thereby reducing the moisture content of the material to be unloaded.

[0005] On one hand, the present invention provides a method for unloading vehicles using a tippler during the rainy season, comprising:

[0006] Turn on the rainy season operation mode switch on the main control panel, and the tipper will enter the rainy season operation mode;

[0007] Acquire the trigger signal from the proximity sensor located on the platform in front of the curved track of the tipper;

[0008] When the car body is detected to have tilted to the set angle of the drainage operation position, a trigger signal is sent to the PLC control system. Based on the received trigger signal, the PLC control system controls the car body to drain water for a set duration.

[0009] After drainage is completed, the tipper is controlled to continue tipping and a trigger signal from the proximity sensor is obtained;

[0010] When the carriages are detected to have tilted to preset angles, the tipper is controlled to perform preset unloading in sequence.

[0011] The above technical solution activates the rainy season operation mode, acquires the trigger signal of the proximity sensor during the tipper's overturning process, and sends it to the PLC control program. The PLC control program controls the car body to drain water for a set time according to the trigger signal. After the drainage is completed, the tipper continues to overturn and unload multiple times, thereby reducing the water accumulation in the car body and reducing the moisture content of the material to be unloaded.

[0012] Optionally, once the third unloading is completed, the unloading operation ends, and the tipper returns to its initial state before unloading.

[0013] Optionally, the decision to activate the rainy season operation mode can be made based on the water accumulation in the train carriages or the quality of the materials unloaded during the first trial tipping by the tipper.

[0014] Optionally, the preset angle is provided in three ways, each corresponding to one of the three preset unloading operations.

[0015] Optionally, the preset angles include a first preset angle, a second preset angle, and a third preset angle, and the magnitudes of the first preset angle, the second preset angle, and the third preset angle increase sequentially.

[0016] On the other hand, the present invention provides an unloading system for tippler operations during the rainy season, which is implemented using the aforementioned unloading method for tippler operations during the rainy season, including:

[0017] The PLC control system is used to control the tipper to tilt, receive signals from the proximity sensor and control the tipper to perform drainage and unloading operations.

[0018] Four columnar probes are installed on the arc-shaped track of the tipper, corresponding to the angle of the drainage operation position, the first preset angle, the second preset angle, and the third preset angle, respectively.

[0019] Proximity sensors are installed on the front platform of the tippler, corresponding to the probes, to detect whether the tippler has reached the set angle.

[0020] The main control panel and the rainy season mode operation button are used to activate the rainy season operation mode and can switch between the rainy season operation mode and the normal operation mode.

[0021] The above technical solution activates the rainy season operation mode by turning on the main control panel. After the tipper clamps the car body with the car beam and the car backing plate, the PLC control program controls the tipper to flip the car body to drain water and unload material in small amounts multiple times. The material is unloaded into the silo, avoiding silo spraying accidents during the rainy season and enabling normal unloading operations in rainy environments.

[0022] Optionally, the PLC control system includes a rainy season mode signal input module, used to activate the tipper into rainy season operation mode after detecting a rainy season operation mode switch signal; and a trigger signal input module, used to detect the trigger signal of the tipper's proximity sensor, the trigger signal including: a drainage level trigger signal, a first tipping trigger signal, a second tipping trigger signal, and a third tipping trigger signal.

[0023] Optionally, after receiving the drainage level trigger signal, the PLC control system controls the tipper to pause for 20-25 seconds so that the car body can drain water.

[0024] Optionally, when the trigger signal input module of the PLC control system detects the first tipping trigger signal, the second tipping trigger signal and the third tipping trigger signal, the tipper performs the first tipping, the second tipping and the third tipping respectively, and the duration of each tipping is set to 10 to 15 seconds.

[0025] Optionally, the PLC control system is equipped with a low-speed control program and a high-speed control program. In normal operation mode, the PLC control system runs the high-speed control program, causing the tipper to tip over at high speed. When the tipper enters rainy season operation mode, the PLC control system runs the low-speed control program, causing the tipper to tip over at low speed. The low-speed control program enables the tipper to tip over at low speed throughout the rainy season operation mode.

[0026] Optionally, the low-speed control program and the high-speed control program are interlocked; when the low-speed control program runs, the high-speed control program does not run; when the high-speed control program runs, the low-speed control program does not run. Interlocking protection is achieved by setting the low-speed control program and the high-speed control program to be interlocked.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. This invention activates the rainy season operation mode, acquires the trigger signal of the proximity sensor during the tipper's overturning process, and sends it to the PLC control program. The PLC control program controls the car body to drain water for a set time according to the trigger signal. After the drainage is completed, the tipper continues to overturn and unload multiple times, thereby reducing the water accumulation in the car body and thus reducing the moisture content of the material to be unloaded.

[0029] 2. In this invention, the tipper flips at different angles to achieve small-volume, multiple-time material feeding, preventing material leakage due to untimely transfer of materials in the silo and belt conveyor, reducing material leakage from clogging the silo and belt conveyor and avoiding damage to the equipment.

[0030] 3. This invention eliminates the fines caused by vehicles being unable to unload due to high material moisture content, resulting in vehicle backlog and exceeding time limits, thus ensuring the normal production of the tipper and the supply of raw materials. Attached Figure Description

[0031] Figure 1 This is a schematic flowchart of a method for unloading vehicles using a tippler during the rainy season, according to an embodiment of the present invention.

[0032] Figure 2 This is a plan view of a tippler unloading system for rainy season operations according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the proximity sensor and detector of a tippler unloading system for rainy season operations, according to an embodiment of the present invention.

[0034] In the diagram: 1. 90-degree iron probe; 2. 110-degree iron probe; 3. 135-degree iron probe; 4. 165-degree iron probe; 5. Tilting machine curved track; 6. Proximity sensor mounting platform; 7. Proximity sensor. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Four sensor rods are installed on the curved track 5 of the tippler, corresponding to the drainage operation position, the first tipping operation position, the second tipping operation position, and the third tipping operation position, respectively. Four proximity sensors 7 are installed on the front platform 6 of the curved track 5, which can detect whether the drainage operation position, the first tipping operation position, the second tipping operation position, and the third tipping operation position have been reached. The drainage operation position, the first tipping operation position, the second tipping operation position, and the third tipping operation position correspond to the tippler's tilting angles of 90 degrees, 110 degrees, 135 degrees, and 165 degrees, respectively.

[0037] Add a switch for rainy season operation and normal operation modes to the main control panel to switch between the two operation modes. Add a rainy season mode switch to the control panel and connect the normally open signal of this button to the rainy season mode signal input module.

[0038] Based on the water accumulation in the train carriages or the quality of the material unloaded during the first trial tipping by the tipper, determine whether to activate the rainy season operation mode. The rainy season operation mode is activated by pressing the rainy season mode switch on the control panel; module point 100006 is defined as D_YUJIMOSHI. The PLC control program is then developed, first adding the 100006 switch point to the tipper's low-speed control program 000461D_low_speed, while simultaneously implementing interlocking protection between the low-speed control program 000461D_low_speed and the tipper's high-speed control program 000460D_high_speed. Then set switch input 100006, trigger signal 100159 (detecting 110-degree trigger signal), trigger signal 100160 (detecting 135-degree trigger signal), and trigger signal 100161 (detecting 165-degree trigger signal) to automatically stop the tipper from tipping and delay for 10 seconds before restarting the tipper; set trigger signal 100158 (detecting 90-degree trigger signal) to automatically stop the tipper from tipping and delay for 20 seconds before restarting the tipper.

[0039] On the one hand, the present invention provides a method for unloading vehicles using a tippler during the rainy season.

[0040] Turn on the rainy season operation mode switch on the main control panel to switch the tippler unloading process into rainy season operation mode.

[0041] After the loaded car is clamped by the tipper's pressure beam and the car body, the tipper starts operating at low speed. Proximity sensor 7 begins detection. The tipper rotates at 90 degrees, at which point probe 1 reaches proximity sensor 7, sending a trigger signal to the PLC control system. The tipper pauses for 20 seconds, during which time the car body is tilted at 90 degrees, and any water accumulated inside will drain out along the sides. After the pause, the tipper rotates at low speed to 110 degrees, at which point probe 2 reaches proximity sensor 7, sending a trigger signal to the PLC control system. The tipper pauses for 10 seconds, completing the first unloading operation. The tipper continues rotating at low speed to 135 degrees, at which point probe 3 reaches proximity sensor 7, sending a trigger signal to the PLC control system. The tipper pauses for 10 seconds, completing the second unloading operation. The tipper continues rotating at low speed to 165 degrees, at which point probe 4 reaches proximity sensor 7, sending a trigger signal to the PLC control system. The tipper pauses for 10 seconds, completing the third unloading operation. After unloading is completed, it will automatically return to the initial state before unloading.

[0042] The tipper operates at low speed throughout. After draining the accumulated water when it flips to 90 degrees, it uses a three-stage batch unloading mode to complete the unloading of one car.

[0043] On the other hand, the present invention also provides an unloading system for tippler operations during the rainy season, which is implemented using the aforementioned unloading method for tippler operations during the rainy season. The system includes:

[0044] The PLC control system is used to control the tipper's tilting, receive the trigger signal from proximity sensor 7, and control the tipper to perform drainage and tipping operations. In this embodiment, during the rainy season operation mode, the PLC control system controls the tipper to operate at low speed throughout. After tilting to 90 degrees to drain the accumulated water, it uses a three-stage batch unloading operation mode to complete the tipping of one car.

[0045] Four columnar probes are installed on the arc-shaped track 5 of the tipper, corresponding to the angles of the drainage operation position, the first preset angle, the second preset angle, and the third preset angle, respectively. In this embodiment, 90-degree probe 1, 110-degree probe 2, 135-degree probe 3, and 165-degree probe 4 are respectively installed.

[0046] A proximity sensor 7 is installed on the platform 6 in front of the curved track 5 of the tipper, corresponding to a probe. This sensor detects whether the tipper has tilted to a set angle for corresponding operation. In this embodiment, the proximity sensor 7 detects the 90-degree probe 1, the 110-degree probe 2, the 135-degree probe 3, and the 165-degree probe 4 and sends trigger signals to the PLC control system.

[0047] The main control panel includes a rainy season mode button, which is used to activate the rainy season operation mode and switch between the rainy season operation mode and the normal operation mode. In this embodiment, the operator switches between the rainy season operation mode and the normal operation mode on the main control panel. Normally, the tipper operates in the normal operation mode, while in special environments with heavy rainfall during the rainy season, the rainy season operation mode is used for tipping and unloading.

[0048] After activating the rainy season operation mode, the PLC control program controls the tipper to unload the car body, reducing the moisture content of the material to be unloaded. Unloading is carried out in small, multiple batches to prevent material leakage due to untimely transfer of materials to the silo and conveyor belt, thereby reducing the risk of clogging and damage to the equipment caused by leakage.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method of operating a dumper during the rainy season, characterized in that, include: Turn on the rainy season operation mode switch on the main control panel, and the tipper will enter the rainy season operation mode; Acquire the trigger signal from the proximity sensor located on the platform in front of the curved track of the tipper; When the car body is detected to have tilted to the set angle of the drainage operation position, a trigger signal is sent to the PLC control system. Based on the received trigger signal, the PLC control system controls the car body to drain water for a set duration. After drainage is completed, the tipper is controlled to continue tipping and a trigger signal from the proximity sensor is obtained; When the carriages are detected to have tilted to preset angles, the tipper is controlled to perform preset unloading in sequence.

2. The unloading method of a tippler for rainy season operation according to claim 1, characterized in that, The decision on whether to activate the rainy season operation mode will be made based on the water accumulation in the train carriages or the quality of the materials unloaded during the first trial unloading by the tipper.

3. The unloading method of a tippler for rainy season operation according to claim 1, characterized in that, The preset angles are set to three, each corresponding to one of the three preset unloading operations.

4. The unloading method of a tippler for rainy season operation according to claim 1, characterized in that, The preset angles include a first preset angle, a second preset angle, and a third preset angle, and the magnitudes of the first preset angle, the second preset angle, and the third preset angle increase sequentially.

5. A tippler unloading system for rainy season operations, implemented using the tippler unloading method for rainy season operations as described in any one of claims 1-4, characterized in that, include: The PLC control system is used to control the tipper to tilt, receive signals from the proximity sensor and control the tipper to perform drainage and unloading operations. Four columnar probes are installed on the arc-shaped track of the tipper, corresponding to the angle of the drainage operation position, the first preset angle, the second preset angle, and the third preset angle, respectively. Proximity sensors are installed on the front platform of the tippler, corresponding to the probes, to detect whether the tippler has reached the set angle. The main control panel and the rainy season mode operation button are used to activate the rainy season operation mode and can switch between the rainy season operation mode and the normal operation mode.

6. The unloading system for a tippler during rainy season operations according to claim 5, characterized in that, The PLC control system includes a rainy season mode signal input module, which is used to activate the tipper into rainy season operation mode after detecting the rainy season operation mode switch signal. The trigger signal input module is used to detect the trigger signal of the tipper proximity sensor. The trigger signal includes: a drainage level trigger signal, a first tipping trigger signal, a second tipping trigger signal, and a third tipping trigger signal.

7. The unloading system for a tippler during rainy season operations according to claim 6, characterized in that, After receiving the drainage level trigger signal, the PLC control system controls the tipper to pause for 20-25 seconds, allowing the car body to drain water.

8. The unloading system for a tippler during rainy season operations according to claim 6, characterized in that, When the trigger signal input module of the PLC control system detects the first tipping trigger signal, the second tipping trigger signal and the third tipping trigger signal, the tipper will perform the first tipping, the second tipping and the third tipping respectively, with each tipping time set to 10 to 15 seconds.

9. The unloading system for a tippler during rainy season operations according to claim 5, characterized in that, The PLC control system also includes a low-speed control program and a high-speed control program; in the normal operation mode, the PLC control system runs the high-speed control program, and the tipper performs high-speed tipping; after the tipper enters the rainy season operation mode, the PLC control system runs the low-speed control program, and the tipper performs low-speed tipping.

10. A tippler unloading system for rainy season operations according to claim 9, characterized in that, The low-speed control program and the high-speed control program are interlocked; when the low-speed control program is running, the high-speed control program is not running; when the high-speed control program is running, the low-speed control program is not running.

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