System and method for diagnosing cut tobacco moisture content stability in cut tobacco drying working procedure

Abstract

The invention provides a system for diagnosing the cut tobacco moisture content stability in the cut tobacco drying working procedure. The cut tobacco moisture content stability in the cut tobacco drying working procedure is determined by monitoring six monitored items including the cut tobacco calescence inlet material moisture content, the cut tobacco calescence material instantaneous flow rate, the cut tobacco calescence outlet material temperature, the cut tobacco drying hot air volume, the cut tobacco drying hot air temperature and the cut tobacco drying cylinder wall temperature. The system comprises a material flow collecting unit, a data acquisition unit and a processing unit, wherein the material flow collecting unit is used for collecting material flow rate at the position of a cut tobacco drying inlet; data acquisition is carried out one time at a preset time interval when the material flow rate at the position of the cut tobacco drying inlet is increased to be equal to a first preset value, and data acquisition is stopped when the material flow rate at the position of the cut tobacco drying inlet is decreased to be equal to a second preset value; the processing unit is used for giving out an alarm when a residual calculation value meets preset conditions, wherein the residual calculation value is equal to a sum of a product of B1 and X1, a product of a B2 and X2, a product of a B3 and X4, a product of a B5 and X6, a product of a B5 and X5 and a product of a B6 and X6. The invention further provides a corresponding diagnosing method. The diagnosing system and method are more reliable.

Description

technical field [0001] The invention relates to the technical field of tobacco production, in particular to a diagnosis system and a diagnosis method for the stability of the moisture content of cut leaves in the cutting cut leaf drying process. Background technique [0002] At present, cigarette manufacturing enterprises regard the moisture content of the shredded leaf drying outlet as an important indicator of the shredded leaf drying process. The main control method is to control the upper and lower limits according to the moisture content of the material at the shredded leaf drying outlet. Some enterprises adopt the upper and lower limits plus standard deviation. control. When the moisture content of the shredded dried export material changes or is abnormal, it is usually diagnosed and adjusted based on the experience of the parties involved. This judgment mode is greatly affected by human subjective factors (experience and skills), and there are judgments The problem o...

AI Technical Summary

Problems solved by technology

However, in the actual production and operation process, "the moisture content index is normal, but the parameters and process are abnormal", which is not conducive to the scientific diagnosis of the stability of the moisture content of the shredded leaves in the shredded drying process, and there are misadjustments, unnecessary adjustments and unnecessary adjustments. Risk of increased process variability due to adjustments

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