Intelligent current detection spray system and control method for belt conveyor
A belt conveyor, current detection technology, applied in the direction of conveyor control device, conveyor objects, transportation and packaging, etc., can solve the problems of wasting water resources, poor dust reduction effect, low intelligence, etc., to save water consumption, intelligent Improved, functional effects
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Embodiment 1
[0042] Such as figure 1 , figure 2As shown, the intelligent current detection spraying system of the belt conveyor includes a spraying pipeline arranged above the belt of the belt conveyor, a plurality of solenoid valves and an electrical control system arranged on the spraying pipeline. The electrical control system is composed of a power supply, an intelligent current detector, a current transformer or a frequency converter I / O board for obtaining a current signal reflecting the actual load of the belt conveyor drive motor, a spray circuit and a connecting wire. The current transformer or The output end of the inverter I / O board is electrically connected to the input module of the intelligent current detector through the current input channel, and the spray circuit is composed of a power supply, an output contact K electrically connected to the output module of the intelligent current detector, and an output contact K is connected in series with inspection / sprinkling chang...
Embodiment 2
[0064] see Figure 6-a to Figure 6-c , the spraying pipeline adopts a pipeline-type electromagnetic valve arranged along the length direction of the belt conveyor, and there is only one first spraying section in the overall length direction, and the relay is an intermediate relay K1 for controlling the pipeline-type electromagnetic valve. When the full-length spray section is used, the start-up time of the intermediate relay K1 controlling the pipeline solenoid valve is Tsd1, that is
[0065] Tsd1=[(15%~30%)L÷v]+ΔT
[0066] In the formula, L is the total length of the belt conveyor belt, (15%~30%) L means that the material carried by the belt conveyor is 15%-30% of the total length of the belt from the tail drain to the tail drain, v is the belt speed, and the delay time ΔT=10s, which is set for the internal program timer of the intelligent current detector, which is used to avoid the starting time of the drive motor and prevent external signal interference, and avoid misoper...
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