Dual-power movable jaw crushing station and control method thereof

Abstract

The invention relates to the technical field of crushing stations, in particular to a dual-power movable jaw type crushing station and a control method thereof. The crushing station comprises a crawler frame, a jaw crusher, a vibrating feeder, a main conveyor, a power system and an electrical system. The power system integrates a generator set and a mains supply interface to realize dual-mode power supply; according to the equipment, the main conveyor, the jaw crusher and the vibrating feeder are forced to stop running according to a forward starting sequence and a reverse starting sequence through the interlocking module; based on real-time data of a motor current sensor and a material level sensor of the jaw crusher, the feeding amount is dynamically adjusted to restrain material blockage; in the hydraulic mode, the walking or the oil cylinder action can be operated after the main pump is manually started. The problems of no power grid power supply limitation in the field, frequent blockage and potential safety hazards of misoperation are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing stations, and in particular to a dual-power mobile jaw crushing station and a control method thereof. Background Art

[0002] As the core equipment for mining and construction waste treatment, mobile jaw crushing stations need to adapt to field mobile operation scenarios. However, existing technologies have the following problems, which seriously restrict the reliability and economy of the equipment:

[0003] 1. Single power supply and poor deployment flexibility

[0004] Traditional equipment relies solely on diesel generators for power, with fuel costs accounting for more than 40% of operating expenses, and diesel needs to be frequently transported during field operations; the few devices that support mains power lack the ability to seamlessly switch between dual modes, and the grid coverage area cannot utilize low-cost energy, severely reducing the applicable scenarios of the equipment.

[0005] 2. Frequent blockage failures and insufficient production continuity

[0006] Disordered start and stop: In existing technologies, conveyors, crushers, and feeders can be started and stopped independently. The material conveying chain is easily blocked due to incorrect start-up sequence. Manual cleaning is required after blockage, and a single process takes ≥2 hours, resulting in significant production capacity loss.

[0007] In summary, it is necessary to provide a solution to the industry problems of power supply limitations and frequent blockages in mobile crushing stations. Summary of the Invention

[0008] The problem to be solved by the present invention is to provide a solution to the industry problems of power supply limitation and frequent blockage in mobile crushing stations.

[0009] In view of the shortcomings of the prior art, the technical solution adopted by the present invention to solve the technical problems is: a dual-power mobile jaw crushing station, including a crawler frame and a jaw crusher, a vibrating feeder and a main conveyor installed thereon; a hopper is provided above the vibrating feeder, a dividing device is provided below the hopper, and the jaw crusher is arranged in the middle of the crawler frame; it also includes a power system for providing power to the main conveyor, a magnetic separator located above the main conveyor, a side conveyor arranged below the dividing device and an electrical system located next to the power system; the power system includes a generator set and a mains power interface and a hydraulic unit that provide dual-mode power supply for the entire machine; the main conveyor, jaw crusher and vibrating feeder are electrically connected and the starting sequence is main conveyor, jaw crusher, vibrating feeder, and the stopping sequence is vibrating feeder, jaw crusher, and main conveyor.

[0010] Preferably, the electrical system is configured with an interlocking control module to force the main conveyor, jaw crusher, and vibrating feeder to start and stop in sequence.

[0011] Preferably, it further comprises an anti-blocking monitoring unit, which comprises a current sensor connected to the motor of the jaw crusher and a material level sensor arranged above the jaw crusher.

[0012] Preferably, a pressure switch is provided between the accumulator and the booster pump of the jaw crusher.

[0013] A control method for a dual-power mobile jaw crushing station includes the following steps:

[0014] Power mode selection: switch between generator set and mains power supply through the power system;

[0015] Working state selection: select to enter working mode or hydraulic mode; in working mode, the clamping cylinder pressure of the jaw crusher is maintained;

[0016] Anti-blocking dynamic adjustment: real-time monitoring of jaw crusher motor current and jaw crusher material level;

[0017] Safe operation of hydraulic unit:

[0018] After selecting the hydraulic mode, enter the mode selection. The mode selection can enter the walking mode or cylinder mode. In the walking mode or cylinder mode, the main pump must be manually started before the remote control can be used to operate the equipment to walk or the cylinder to move.

[0019] Preferably, in the pressure maintenance process of the clamping cylinder connected to the jaw crusher, when the accumulator pressure value is less than the low pressure threshold D, the booster pump is automatically started to charge to a pressure ≥ the high pressure threshold E, and when the low pressure threshold D ≤ the pressure value < the high pressure threshold E, the booster pump is on standby.

[0020] Preferably, if the current sensor data is ≥ the current high threshold A or the material level sensor data is ≥ the material level threshold C, the vibrating feeder is stopped; if the current sensor data is < the current low threshold B and the material level sensor data is < the material level threshold C for a set time, the vibrating feeder is automatically started.

[0021] Preferably, in the working mode, the equipment startup control is as follows: the main conveyor, jaw crusher, and vibrating feeder are started in sequence, and the order is irreversible; when the equipment stops, the vibrating feeder, jaw crusher, and main conveyor are executed in order.

[0022] The beneficial effects of the present invention are as follows: Dual-power compatibility: through dual-mode power supply of generator set and external AC power, it breaks through the limitation of no power grid in the wild and significantly improves the flexibility and economy of equipment deployment; the interlocking control module forces the start and stop sequence to avoid blockage failures caused by disordered operation; the anti-blocking monitoring unit monitors the current feeding level of the jaw crusher in real time, accurately controls the feeding amount, and reduces the incidence of blockage. The hydraulic main pump button is placed in the remote control to reduce the risk of accidental touch, and the accident rate is reduced; the tightening cylinder automatically maintains the pressure of the accumulator to ensure the stable operation of the jaw crusher. The interlocking control module and the anti-blocking monitoring unit reduce the equipment's blockage and jam failures, avoid manual cleaning, and extend the life of core components. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the main view of the crushing station of the present invention;

[0024] Figure 2 It is an axonometric diagram of the crushing station of the present invention;

[0025] Figure 3 is a flow chart of the method involved in the present invention;

[0026] Figure 4 This is a flow chart of the clamping cylinder control method involved in the present invention;

[0027] Figure 5 This is an operation flow chart of the crushing station of the present invention;

[0028] Figure 6 This is the electrical linkage principle diagram of the main conveyor, jaw crusher and vibrating feeder of the present invention;

[0029] Figure 7 This is an electrical schematic diagram of the clamping cylinder of the present invention;

[0030] Figure 8 This is a control principle diagram of the vibrating feeder of the present invention;

[0031] Explanation of the accompanying symbols: 1. crawler frame; 2. vibrating feeder; 3. hopper; 4. material dividing device; 5. jaw crusher; 6. power system; 7. magnetic separator; 8. main conveyor; 9. electrical system; 10. side conveyor. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0033] In order to solve the problems raised in the background technology, such as Figure 1 、 Figure 2 As shown, the present invention provides a dual-power mobile jaw crushing station, including a crawler frame 1 and a jaw crusher 5, a vibrating feeder 2, and a main conveyor 8 installed thereon; the core function of the crawler frame 1 is to serve as a mobile bearing platform and integrate all components of the equipment to achieve rapid transfer of the entire equipment to scenes such as mines and construction sites; the vibrating feeder 2 serves as a material flow regulation center, receives the raw materials from the hopper 3, and evenly disperses the materials into the jaw crusher 5 through the vibration motor; the hopper 3 is a primary aggregate and buffer, accommodating raw materials to be crushed such as ore and construction waste, and its volume design reduces the waiting time of the loading equipment; the material distributor 4 directs the material diversion and distributes the material at the outlet of the hopper 3 to the vibrating feeder 2 or The equipment includes a side conveyor 10; a hopper 3 is located above the vibrating feeder 2, a material distributor 4 is located below the hopper 3, and a jaw crusher 5 is located in the middle of the crawler frame 1. The equipment also includes a power system 6 that provides power to the main conveyor 8, a magnetic separator 7 located above the main conveyor 8, a side conveyor 10 located below the material distributor 4, and an electrical system 9 located next to the power system 6. The power system 6 includes a generator set that provides dual-mode power to the entire machine, a mains power interface, and a hydraulic unit. The main conveyor 8, jaw crusher 5, and vibrating feeder 2 are electrically connected, with the starting sequence being main conveyor 8, jaw crusher 5, vibrating feeder 2, and the stopping sequence being vibrating feeder 2, jaw crusher 5, and main conveyor 8. The electrical system 9 uses an interlocking control module to force the main conveyor 8, jaw crusher 5, and vibrating feeder 2 to start and stop in sequence. The jaw crusher 5 is equipped with an anti-blocking monitoring unit, which includes a current sensor connected to the jaw crusher's motor and a material level sensor located above the jaw crusher. The jaw crusher 5 is equipped with a clamping cylinder, which is pressurized by an accumulator and a booster pump. A pressure switch is installed between the accumulator and the booster pump. The jaw crusher 5 acts as the primary crushing actuator. The movable jaw and fixed jaw form the crushing chamber, crushing the material with high pressure. The clamping cylinder hydraulically locks the movable jaw to prevent uneven discharge particle size caused by displacement. The accumulator provides instantaneous pressure replenishment to cope with the impact load of crushing. The pressure switch automatically controls the booster pump to maintain the set high pressure threshold E. The power system 6 provides a dual-mode power supply. The diesel-powered generator set provides autonomous power output to adapt to the peak load of the entire machine when off-grid. The mains interface connects to the industrial power grid, prioritizing fuel cost reduction. The hydraulic unit powers the clamping cylinder, crawler tracks, and folding conveyor, independently of the power system.

[0034] The magnetic separator 7 separates metal impurities and is located above the main conveyor 8. The strong magnetic roller absorbs ferrous foreign objects such as bolts and steel bars, preventing metal parts from entering the crushing chamber and damaging the jaw plate. The main conveyor 8 serves as the main line for crushed material transportation, receiving the output of the jaw crusher 5 and conveying it to downstream equipment such as a screening machine or a stockpile area. The electrical system 9 serves as the intelligent control center, and is hard-wired through the interlocking control module to force the start and stop sequence of main conveyor → jaw crusher → feeder. The anti-blocking monitoring module analyzes the current sensor jaw crusher motor and material level sensor data in real time, and dynamically starts and stops the feeder. The remote control signal is locked through the hydraulic safety relay, and the travel / cylinder instructions are blocked before the main pump is manually started to prevent accidental touch. The threshold management unit presets the current high threshold A / current low threshold B, material level threshold C, and pressure low threshold D / pressure high threshold E to adapt to on-site working conditions.

[0035] A control method for a dual-power mobile jaw crushing station specifically includes the following steps:

[0036] Power mode selection: switch between generator set and mains power supply through power system 6;

[0037] Working state selection: Select to enter working mode or hydraulic mode. In working mode, equipment startup control: The main conveyor 8, jaw crusher 5, and vibrating feeder 2 are started in an irreversible order. When the equipment stops, the vibrating feeder 2, jaw crusher 5, and main conveyor 8 are started in the same order. In working mode, the pressure of the clamping cylinder connected to the jaw crusher 5 is maintained. During the pressure maintenance process of the clamping cylinder connected to the jaw crusher 5, when the accumulator pressure value is less than the low pressure threshold D, the booster pump is automatically started to charge the pressure to a pressure greater than or equal to the high pressure threshold E. When the low pressure threshold D is less than or equal to the pressure value less than the high pressure threshold E, the booster pump is on standby.

[0038] Anti-blocking dynamic adjustment: Real-time monitoring of the jaw crusher motor current and jaw crusher material level; if the current sensor data ≥ current high threshold A or the material level sensor data ≥ material level threshold C, stop vibrating feeder 2; if the current sensor data < current low threshold B and the material level sensor data < material level threshold C for a set time, automatically start vibrating feeder 2.

[0039] Safe operation of the hydraulic unit: After selecting the hydraulic mode, enter the mode selection. The mode selection can enter the walking mode or the cylinder mode. In the walking mode or the cylinder mode, the main pump must be manually started before the remote control can be used to operate the equipment to walk or the cylinder to move.

[0040] like Figure 2As shown, after the equipment selects the operating mode, the main conveyor 8, jaw crusher 5, and vibrating feeder 2 can be started in sequence. This process sequence is irreversible. The main conveyor 8, jaw crusher 5, and vibrating feeder 2 are interlocked to prevent the equipment from being blocked. In other words, if the main conveyor 8 and jaw crusher 5 are not working properly, the vibrating feeder 2 cannot be started. During operation, if the main conveyor 8 or jaw crusher 5 fails, the vibrating feeder 2 will automatically stop. The equipment can only be stopped in the reverse order. The stopping sequence is vibrating feeder 2, jaw crusher 5, and main conveyor 8. The interlocking function can be achieved through the interlocking circuit control in the electrical system 9. The jaw crusher 5 of the present invention uses a clamping cylinder for crushing. The clamping cylinder ensures the normal operation of the jaw crusher 5. The clamping cylinder is existing technology and will not be described in detail here. The accumulator and booster pump provide power for the clamping cylinder, and a pressure switch is connected between the accumulator and the booster pump. When the pressure switch detects that the accumulator pressure falls below the low pressure threshold D, the booster pump automatically starts to charge the accumulator. When the high pressure threshold E is reached, the booster pump automatically stops. The vibrating feeder 2 can also be manually started and stopped via the remote control to prevent blockage caused by overfeeding. The equipment also features real-time monitoring of the jaw crusher motor current and the material level of the jaw crusher 5. A current sensor is connected to the jaw crusher motor, and a material level sensor is located above the jaw crusher 5. When the jaw crusher motor current reaches the high current threshold A or the material level sensor indicates the material level is above the material level threshold C, the system automatically stops the vibrating feeder 2. When the jaw crusher motor current falls below the low current threshold B and the material level remains below the material level threshold C for a period of time, the system automatically starts the vibrating feeder 2. After starting the vibrating feeder 2, other actuators, such as the side conveyor 10, magnetic separator 7, and sprayers, can be activated at any time without interlocking. Within the hydraulic mode, a travel mode can be selected. Once selected, the main pump of the hydraulic unit is activated by pressing the start button. The equipment can then be controlled to travel via the remote control. This prevents misoperation, such as a worker operating a remote control, from switching the machine to travel mode and causing it to move, potentially creating a safety risk. Within the hydraulic mode, you can also select cylinder mode. Once selected, the start button activates the main hydraulic pump. This allows you to fold the main conveyor 8 and adjust the main machine.

[0041] like Figure 6The figure shows the electrical linkage principle diagram of the main conveyor 8, jaw crusher 5 and vibrating feeder 2 of the present invention; KM3 closure represents the start of the main conveyor 8, and KA1.9 closure represents the start of the jaw crusher 5; X9.1 / X9.1 is the start switch signal of the vibrating feeder 2, X11.21 / X11.22 is another redundant switch signal of the vibrating feeder 2, and KA2.1 represents the operation command of the vibrating feeder 2, that is, KM3 is closed and KA1.9 is closed, and at the same time, when X9.1 / X9.1 or X11.21 / X11.22 has a signal, KA2.1 is closed to start the vibrating feeder 2. Figure 7 It is the electrical schematic diagram of the clamping cylinder of the present invention; X14.20 / X14.19 are allowed to be connected only when the jaw crusher 5 is started, and the X6.25 end receives the signal of the pressure switch. When the pressure is less than the low pressure threshold D, KA20.5 receives the signal to start the booster pump. Figure 8 This is a schematic diagram of the vibrating feeder 2 of the present invention being controlled by the current of the jaw crusher 5; X11.47 / X11.48 receives the motor current value of the jaw crusher 5, converts the high current into a low current signal through TH1, TH2 receives the low current signal of TH1 and determines the relationship between the signal and the current high threshold A, TH3 receives the material level sensor signal, and when the material level sensor shows that the material level is higher than the material level threshold C or the current of the jaw crusher 5 is higher than the current high threshold A, the KT10.1 signal starts to control the vibrating feeder 2 to shut down.

[0042] This invention provides a dual-power mobile jaw crushing station and its control method. The crushing station achieves power redundancy through an integrated generator set and a mains power interface, ensuring continuous operation under complex operating conditions. Hardware interlocking forces the main conveyor, jaw crusher, and vibrating feeder to start and stop in sequence, and dynamically adjusts the feed rate by combining real-time monitoring of current and material level, effectively mitigating the risk of material blockage. A manual start button for the main pump in hydraulic mode completely eliminates equipment movement or cylinder malfunction caused by misoperation.

Claims

1. A dual-power mobile jaw crushing station, characterized by: The invention comprises a crawler frame (1) and a jaw crusher (5), a vibrating feeder (2) and a main conveyor (8) mounted thereon; a hopper (3) is provided above the vibrating feeder (2), a material dividing device (4) is provided below the hopper (3), and the jaw crusher (5) is arranged in the middle of the crawler frame (1); the invention also comprises a power system (6) for providing power to the main conveyor (8), a magnetic separator (7) located above the main conveyor (8), a side conveyor (10) located below the material dividing device (4), and an electrical system (9) located next to the power system (6); the power system (6) comprises a generator set and a mains power interface and a hydraulic unit for providing dual-mode power supply for the entire machine; the main conveyor (8), the jaw crusher (5) and the vibrating feeder (2) are electrically connected, and the starting sequence is the main conveyor (8), the jaw crusher (5), and the vibrating feeder (2), and the stopping sequence is the vibrating feeder (2), the jaw crusher (5), and the main conveyor (8).

2. The dual-power mobile jaw crushing station according to claim 1, characterized in that: The electrical system (9) forces the main conveyor (8), the jaw crusher (5), and the vibrating feeder (2) to start and stop in sequence by configuring an interlocking control module.

3. The dual-power mobile jaw crushing station according to claim 2, characterized in that: It also includes an anti-blocking monitoring unit, which includes a current sensor connected to the motor of the jaw crusher (5) and a material level sensor arranged above the jaw crusher (5).

4. The dual-power mobile jaw crushing station according to claim 1, 2 or 3, characterized in that: A pressure switch is provided between the accumulator and the booster pump of the jaw crusher (5).

5. A control method for a dual-power mobile jaw crushing station, characterized by: The following steps are included: Power mode selection: switch between generator set and mains power supply through power system (6); Working state selection: select to enter working mode or hydraulic mode; in working mode, the clamping cylinder pressure of the jaw crusher (5) is maintained; Anti-blocking dynamic adjustment: real-time monitoring of jaw crusher motor current and jaw crusher material level; Safe operation of hydraulic unit: After selecting the hydraulic mode, enter the mode selection. The mode selection can enter the walking mode or cylinder mode. In the walking mode or cylinder mode, the main pump must be manually started before the remote control can be used to operate the equipment to walk or the cylinder to move.

6. The control method of the dual-power mobile jaw crushing station according to claim 5, characterized in that: During the pressure maintenance process of the clamping oil cylinder connected to the jaw crusher (5), when the accumulator pressure value is less than the low pressure threshold D, the booster pump is automatically started to charge the pressure to a pressure greater than or equal to the high pressure threshold E. When the low pressure threshold D is less than or equal to the pressure value less than the high pressure threshold E, the booster pump is on standby.

7. The control method of the dual-power mobile jaw crushing station according to claim 5 or 6, characterized in that: If the current sensor data is greater than or equal to the current high threshold value A or the material level sensor data is greater than or equal to the material level threshold value C, the vibrating feeder (2) is stopped; if the current sensor data is less than or equal to the current low threshold value B and the material level sensor data is less than or equal to the material level threshold value C for a set period of time, the vibrating feeder (2) is automatically started.

8. The control method of the dual-power mobile jaw crushing station according to claim 5, characterized in that: Equipment startup control in working mode: start the main conveyor (8), jaw crusher (5), and vibrating feeder (2) in sequence, and the sequence is irreversible; when the equipment stops, it is executed in the sequence of vibrating feeder (2), jaw crusher (5), and main conveyor (8).

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