A controlled-release fertilizer coating system and its control method

Abstract

The invention discloses a controlled-release fertilizer coating system and a control method thereof. The system comprises a urea metering and conveying system, a powder metering and conveying system, a liquid metering and conveying system, a plurality of disc coating machines, receiving belt conveyors, finished product packaging devices and a control computer, wherein the receiving belt conveyors are arranged below discharge hole of the disc coating machines; each finished product packaging device is arranged below one end of each receiving belt conveyor; and the urea metering and conveying system, the powder metering and conveying system, the liquid metering and conveying system, the plurality of disc coating machines, the receiving belt conveyors and the finished product packaging devices are all connected with the control computer. According to the controlled-release fertilizer coating system, the coating process which is compact in structure and complete in operation can be automatically finished through the control computer; the control accuracy is relatively high; the plurality of disc coating machines can be quantitatively fed, thus energy sources and manpower resources are greatly saved; the production efficiency is effectively improved; the production cost is reduced; and the controlled-release fertilizer coating system can be widely applied to the field of coating production.

Description

technical field [0001] The invention relates to the field of coating production, in particular to a controlled-release fertilizer coating system and a control method thereof. Background technique [0002] As an important frontier of fertilizer technology innovation, new fertilizers with slow and controlled release fertilizers have been paid more and more attention to their development and application. The so-called slow and controlled release fertilizer refers to the fertilizer that releases nutrients initially slowly through various regulatory mechanisms, prolongs the effective period for crops to absorb and utilize effective nutrients, and makes the nutrients release slowly or controlledly according to the set release rate and release period. The outstanding feature is that its release rate and release period are organically combined with the law of crop growth, so that the effective utilization rate of fertilizer nutrients can be increased by more than 30%. Slow and cont...

AI Technical Summary

Problems solved by technology

[0004] The production and technology of slow and controlled release fertilizers in my country are relatively lagging behind. Most of the coating stand-alone equipment of the manufacturers adopts manual weighing and feeding to carry out urea coating, which has low production efficiency and high labor intensity.

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