Spraying device capable of automatically adjusting yield

Abstract

The invention discloses a spraying device capable of automatically adjusting yield. The spraying device capable of automatically adjusting the yield consists of a yield measurement sensor, a controller, a pneumatic diaphragm pump, a filter, an electromagnetic valve, a flow control valve, a pipeline and a nozzle, wherein the yield measurement sensor is arranged in a carrier roller of a belt conveyor; the controller is connected with the yield measurement sensor, the pneumatic diaphragm pump, the electromagnetic valve and the flow control valve through wires; the pneumatic diaphragm pump provides high-pressure water for the spraying device; the filter is arranged at the water inlet end of the pneumatic diaphragm pump; the electromagnetic valve and the flow control valve are used for controlling on and off of the spraying device and adjusting the spraying flow; and the nozzle is connected with the flow control valve through the pipeline. The spraying device capable of automatically adjusting the yield is applicable to the occasions needing to spray to reduce dust generated when coal mine underground tunnels, coal preparation plants and the like adopt belt conveyors to convey coal, can adjust the spraying quantity according to the conveying quantity of the coal, can save water source and can also avoid excessive spraying quantity, so that the water content of the coal is not ultrahigh and sieve pores are not blocked by the coal during sieving.

Description

technical field [0001] The invention relates to an automatic spraying device, in particular to a mass-produced automatic adjustment spraying device. Background technique [0002] At present, most underground coal mines or coal preparation plants take measures to reduce dust in the form of automatic vibration and mechanical water spraying in response to the ups and downs and environmental pollution caused by belt transportation. It can only be realized when there is a load on the belt. When the belt is empty or the belt conveyor is just started, water can not be sprayed to reduce dust, so the coal dust sticking to the belt due to air drying cannot be treated; The amount of water cannot be adjusted according to the size of the load on the belt conveyor, resulting in too high moisture content in the coal, which makes it easy for the coal to block the screen holes in the subsequent screening process. Once the screen holes are blocked, the lifting, transportation and screening o...

AI Technical Summary

Problems solved by technology

[0002] At present, most underground coal mines or coal preparation plants take measures to reduce dust in the form of automatic vibration and mechanical water spraying in response to the ups and downs and environmental pollution caused by belt transportation. It can only be realized when there is a load on the belt. When the belt is empty or the belt conveyor is just started, water can not be sprayed to reduce dust, so the coal dust sticking to the belt due to air drying cannot be treated; The amount of water cannot be adjusted according to the size of the load on the belt conveyor, resulting in too high moisture content in the coal, which makes it easy for the coal to block the screen holes in the subsequent screening process

Once the screen holes are blocked, the lifting, transportation and screening of coal must be stopped, which seriously affects the transportation and coal preparation operations of coal mines, causing serious economic losses

Although patent 200720023028.2 proposes a spray dust suppression device that is not limited by the empty load of the conveyor belt, this patent still cannot adjust the amount of water sprayed according to the amount of coal conveyed on the belt conveyor

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