One-time moistening and humidifying device for threshing and redrying tobacco leaves

Abstract

The invention discloses a one-time leaf moistening and humidifying device for tobacco leaf threshing and redrying. The one-time leaf moistening and humidifying device comprises a feeding conveyer belt, a metering device, a leaf moistening machine, a humidified water pressure stabilizing device and a discharging conveyer belt. The feeding conveyer belt is connected with a feeding inlet of the leaf moistening machine through the metering device. The discharging conveyer belt is connected with a discharging outlet of the leaf moistening machine. An electromagnetic valve is arranged on a nozzle of the leaf moistening machine. A sensor is arranged on the metering device and electrically connected with a controller of the electromagnetic valve. The humidified water pressure stabilizing device comprises a water storage tank, a water pump and a control assembly. A water inlet is formed in the water storage tank and connected with an external water source through a pipeline. The water pump is arranged inside the water storage tank and connected with a water inlet pipeline of the leaf moistening machine through a pipeline. The control assembly is electrically connected with the water pump. Under different given frequencies, the humidified water carrying capacity of the leaf moistening machine is quite stable, and the requirement for the maximum humidification quantity can be met.

Description

technical field [0001] The invention relates to a process equipment for threshing and re-roasting of tobacco leaves, in particular to a primary moistening and humidifying device for threshing and re-roasting of tobacco leaves. Background technique [0002] The technological task of the threshing and re-baking and moistening process is to heat and humidify the tobacco leaves to make the tobacco leaves soft and loose, enhance the toughness and resistance to breakage of the tobacco leaves, improve the quality of the threshing leaves, and reduce the damage of the tobacco leaves during the threshing and destemming process. loss. In actual production, leaf moistening operators often encounter fluctuations in the flow rate of moistening and humidifying water, which causes moisture fluctuations in the tobacco leaves after moistening and affects the leaf moistening process indicators. [0003] Fluctuations in the flow rate of moistening water for the first moistening will inevitably...

AI Technical Summary

Problems solved by technology

During the investigation, it was found that when the pressure of the water supply pipe network fluctuated and the pressure was lower than 0.3Mpa, the humidification water flow rate also fluctuated and the flow rate gradually decreased. At this time, the steam pressure of the nozzle gradually increased, but the pressure of the steam main pipe did not change; when After the pressure of the water supply pipe network rises above 0.35Mpa and stabilizes, the humidification water flow will return to normal and stable, and the steam pressure of the nozzle will also drop accordingly; after the pressure of the water supply pipe network fluctuates and the humidification water flow decreases, manually adjust to reduce the steam pressure of the nozzle , the flow of humidifying water will gradually increase, but this will inevitably affect the temperature of the mixed gas and the atomization effect, resulting in poor hygroscopicity of tobacco leaves and poor leaf moistening effect. During the investigation, it was found that the flow of humidifying water often fluctuated and gradually decreased , the moisture detection index is also quite unstable after moistening the leaves once

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