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A method for stabilizing the processing strength of a drum type silk drying machine

A yarn drying machine and drum-type technology, which is applied in the field of stabilizing the processing strength of the drum-type yarn drying machine, can solve the problems of poor real-time control ability of batch process, many influencing factors, large time and process span, etc.

Active Publication Date: 2021-04-13
HONGTA TOBACCO GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can effectively stabilize the processing strength of the product, but there are still deficiencies. (1) For the silk production line without a constant temperature and humidity environment, the problem of moisture loss and fluctuation in the processing process caused by environmental temperature and humidity changes cannot be fully considered; (2) ) Move the control point forward to the loose moisture regain process. Due to the large process time and process span in the latter stage, there are many influencing factors, resulting in control lag; (3) The real-time control ability for the current batch process is poor

Method used

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  • A method for stabilizing the processing strength of a drum type silk drying machine
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  • A method for stabilizing the processing strength of a drum type silk drying machine

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Embodiment 1

[0035] In a typical implementation of the present application, a method for stabilizing the processing strength of a drum-type silk drying machine is disclosed, and the mathematical model used is:

[0036] The mathematical model of moisture loss before and after the drying process is: Y1=X1-X2×Z+X3×N1+X4×N2, Y2=X5+X6×N3-X7×N4, where; Y1 is from the exit of moistening leaves to the entrance of drying silk The water content loss in the section, Y2 is the water content loss from the outlet of the dried silk to the mixed silk section, Z is the leaf storage time after moistening, N1 is the ambient temperature from the exit of the moistening leaf to the entrance of the drying silk, and N2 is the section from the exit of the moistening leaf to the entrance of the drying silk Ambient humidity, N3 is the ambient temperature from the drying silk export to the mixed silk section, N4 is the ambient humidity from the drying silk export to the mixed silk section, X1, X2, X3, X4, X5, X6, X7 a...

Embodiment 2

[0040] A system for stabilizing the processing strength of a drum type silk drying machine, comprising a dynamic prediction system for the processing strength of silk drying, the dynamic prediction system for the processing strength of silk drying communicates with a measurement system and a production central control system, the measurement system is an environment temperature and humidity acquisition module and Historical data analysis module;

[0041]Further, the ambient temperature and humidity acquisition module simulates the distribution of the ambient temperature and humidity inside the production workshop, preferably at a height of 1.5±0.3m as the installation plane, and selects a process route that can characterize the temperature and humidity changes in this area in combination with the process route where the moisture content is lost. The area is the installation point, and finally through the data fusion of the dynamic prediction system of the drying processing inte...

Embodiment 3

[0045] Taking a certain brand of cigarettes as an example, the analysis is carried out in units of historical months. Collect the water loss value and the environmental temperature and humidity value of the water loss point of all batches from November 1, 2017 to 30, and perform regression analysis to determine the mathematical model, Y1=-0.365-0.006*leaf storage time+0.059*internal temperature -0.006*internal humidity; Y2=1.192+0.005*internal temperature-0.012*internal humidity.

[0046] After the validity test of the model, the water loss regression model is significant, and the residual and mean square tests are normal. Finally, the regression equation of the water loss point in November 2018 is obtained, and the regression equation is used to predict and control the moisture at the outlet of the leaves:

[0047] Moisture content Q1 at moist leaf outlet = standard center value of mixed silk moisture content Q3 + Y2 + brand drying dehydration target value + Y1. For example, ...

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Abstract

The invention discloses a method and system for stabilizing the processing strength of a drum-type silk drying machine, belonging to the technical field of tobacco control. The method and system for stabilizing the processing strength of a drum-type silk drying machine include the following steps: establishing the processing strength of a drum-type silk drying machine and the mathematical model of water loss during silk making, and based on this, a dynamic prediction system for the processing strength of the silk drying machine is established; before the production of the leaf moistening and feeding process, the dynamic prediction system for processing strength automatically predicts the water loss of each subsequent process according to the above mathematical model, And adjust and set the moisture at the outlet of the leaf moistening process, stabilize the dehydration amount of the silk drying machine to stabilize the processing strength of the silk drying machine; when the production of the silk drying process starts, the processing intensity dynamic prediction system collects the actual value of the moisture at the entrance of the drying silk, and performs drying according to the revised model. Moisture correction at the silk outlet to stabilize the average dehydration amount between batches in the drying process, which greatly reduces the fluctuation range of the dehydration amount between batches of the drum-type silk dryer, and stabilizes the processing intensity of the product.

Description

technical field [0001] The invention belongs to the technical field of tobacco control, and more specifically relates to a method for stabilizing the processing strength of a drum type silk drying machine. Background technique [0002] Under the existing equipment conditions, no matter how the control mode of the drum silk dryer changes, the dehydration amount of the silk dryer is used as a comprehensive indicator of the impact of the cylinder wall temperature, hot air volume, and hot air temperature, and its change represents the fluctuation of product processing intensity. In the conventional way, the moisture at the outlet of the leaf moistening and feeding process is controlled through human experience to stabilize the moisture of the subsequent raw silk, that is, the moisture at the inlet of the silk dryer, thereby ensuring the stability of the processing strength of the drum silk dryer. [0003] However, the inventors have found that due to the large time span from the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/04
CPCA24B3/04
Inventor 乔晓辉李韶阳余云松邹泉陈冉祁跃东潘文徐仁辉王金良赵云川李新赵剑王夏婷马丽张忠仁杨靖怡赵洪愉
Owner HONGTA TOBACCO GRP
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