CN-121970913-A - Design method of threshing and redrying formula module

CN121970913ACN 121970913 ACN121970913 ACN 121970913ACN-121970913-A

Abstract

The invention discloses a design method of a threshing and redrying formula module, which comprises the steps of obtaining non-isothermal drying activation energy values of tobacco raw materials to be fed into the formula module, dividing the tobacco raw materials into a plurality of groups through clustering analysis based on the non-isothermal drying activation energy values, obtaining sensory quality index values of single cigarettes made of the tobacco raw materials, and combining the tobacco raw materials in each group into a target functional formula module for threshing and redrying according to functional positioning of the formula module and the sensory quality index values and based on sensory quality index function guiding approaching principle of the tobacco raw materials. The design method of the threshing and redrying formula module provided by the invention can improve the uniformity and stability of moisture of tobacco flakes at the outlet of a redrying machine on the premise of ensuring the function of the formula module, and is beneficial to storing threshing and redrying finished tobacco flakes.

Inventors

ZHOU YANBIN
DAI HUIJUAN
LI JIAO
WANG DAIBIN
HUANG DINGKUN
LIU YULI
PENG SHENGQIANG
DING JIA
SUN PENGFEI

Assignees

河北中烟工业有限责任公司

Dates

Publication Date: 20260505
Application Date: 20251216

Claims (8)

1. A design method of a threshing and redrying formula module is characterized by comprising the following steps of Acquiring non-isothermal drying activation energy values of all tobacco leaf raw materials to be fed into a formula module; dividing tobacco raw materials into a plurality of groups through cluster analysis based on the non-isothermal drying activation energy value; obtaining the sensory quality index value of a single-material cigarette made of each tobacco raw material; According to the functional positioning of the formula module and the sensory quality index value, the tobacco leaf raw materials in each group are proportionally assembled into a target functional formula module for threshing and redrying processing based on the sensory quality index functional guiding approaching principle of the tobacco leaf raw materials.
2. The method for designing a threshing and redrying formula module according to claim 1, wherein said method for designing a threshing and redrying formula module comprises S1, after crushing and balancing all tobacco leaf raw materials to be fed into a formula module, carrying out a non-isothermal drying experiment, recording thermal weight loss data in the drying process, and calculating non-isothermal drying kinetic parameters of all tobacco leaf raw materials by adopting a non-isothermal drying kinetic model, wherein the non-isothermal drying kinetic parameters comprise non-isothermal drying activation energy values ; S2 is based on the non-isothermal drying activation energy value Dividing tobacco raw materials into 3-4 groups through cluster analysis; S3, the tobacco leaf raw materials in the S1 are remoistened and shredded, then rolled into single-material cigarettes, and sensory quality evaluation is carried out by a tissue sensory evaluation group to obtain various sensory quality index values of the tobacco leaf raw materials; S4, determining the types of tobacco raw materials in each group with target function according to the function positioning of the formula module and the sensory quality index value and based on the sensory quality index function guiding approaching principle of the tobacco raw materials, and combining the tobacco raw materials in each group into a target function formula module in proportion for threshing and redrying processing.
3. The method for designing a threshing and redrying formula module according to claim 2, wherein: In the step S1, the crushed tobacco leaf raw materials are taken as the raw materials with the granularity of 60-100 meshes, and the raw materials are used as the targets for non-isothermal drying experiments by setting a temperature control program of a thermogravimetric analyzer, wherein the balance condition is that the temperature is 30 ℃ and the relative humidity is 70-80%, the temperature control program of the thermogravimetric analyzer comprises a temperature rising interval of 30-120 ℃, the temperature rising rate is 2-5 ℃ per minute, and the temperature is kept at 120 ℃ for not less than 10 minutes.
4. The method for designing a threshing and redrying formula module according to claim 2, wherein: In step S1, the non-isothermal drying kinetic model is that Wherein Relative water content is defined as The ratio of the water content to the initial water content at the moment can be calculated and obtained by the mass data of the thermogravimetric recorded sample, For the rate of temperature rise, And Respectively is Thermodynamic temperature at time and initial time, and non-isothermal drying activation energy value can be obtained by calculation through data iterative fitting 。
5. The method for designing a threshing and redrying formula module according to claim 2, wherein: In the step S3, the number of the sensory evaluation group is not less than 7, 1 group length is set, the sensory quality indexes comprise aroma characteristics, namely aroma quality, aroma quantity, permeability and miscellaneous gas, smoke characteristics, namely concentration, strength, fineness and agglomeration, and mouthfeel characteristics, namely irritation, dryness, cleanliness and sweet returning, wherein the indexes are scored by 9 scores, and the higher the score is, the better the sensory quality index is represented.
6. The method for designing a threshing and redrying formula module according to claim 2, wherein: Step S2, dividing the tobacco leaf raw materials into 3 groups through cluster analysis, and obtaining the non-isothermal drying activation energy value The Z1 to Z3 are respectively recorded from high to low; Step S4 is based on the sensory quality index function guiding approaching principle of the tobacco raw materials: for the Z1 and Z2 groups, tobacco raw materials with the sum of the aroma characteristic index scores not lower than 28 are assembled into an aroma texture module, tobacco raw materials with the sum of the flue gas characteristic index scores not lower than 28 are assembled into a flue gas concentration module, and the rest raw materials in the group are assembled into a taste improvement module; For the Z3 group, tobacco raw materials with the sum of aroma characteristics and smoke characteristic index scores not lower than 48 minutes in the group are assembled into a concentration and reflection-increasing module, and the rest tobacco raw materials in the group are assembled into a taste balancing module; The use proportion of the tobacco leaf raw materials in each functional module is determined according to the mass proportion of the raw materials during warehouse entry.
7. The method for designing a threshing and redrying formula module according to claim 2, wherein: Step S2, dividing the tobacco leaf raw materials into 4 groups through cluster analysis, and obtaining the non-isothermal drying activation energy value The Z1 to Z4 are respectively recorded from high to low; Step S4 is based on the sensory quality index function guiding approaching principle of the tobacco raw materials: For the Z1 and Z2 groups, tobacco raw materials with the aroma characteristic index score sum not lower than 28 in the sensory quality index in the groups are assembled to form an aroma texture module, tobacco raw materials with the flue gas characteristic index score sum not lower than 28 in the groups are assembled to form a flue gas concentration module, and the rest raw materials in the groups are assembled to form a taste balance module; For the Z3 and Z4 groups, tobacco raw materials with the sum of aroma characteristics and smoke characteristic index scores not lower than 48 minutes in the sensory quality indexes in the groups are assembled to form a concentration and reflection-increasing module, and the rest tobacco raw materials in the groups are assembled to form a taste improvement module; The use proportion of the tobacco leaf raw materials in each functional module is determined according to the mass proportion of the raw materials during warehouse entry.
8. A design system of a threshing and redrying formula module is characterized in that the system is used for implementing the steps of the design method of the threshing and redrying formula module according to any one of claims 1-7, and the design system comprises the following steps: A clustering index obtaining unit for obtaining the clustering index of each tobacco leaf raw material to be entered into the formulation module, and setting the clustering index as a non-isothermal drying activation energy value in order to promote the uniformity and consistency of moisture in tobacco leaf redrying processing ; A cluster analysis grouping unit for grouping the non-isothermal drying activation energy values Dividing tobacco leaf raw materials into a plurality of groups through cluster analysis; The sensory quality evaluation unit is used for making the tobacco leaf raw materials into single-material cigarettes after the tobacco leaf raw materials are remoistened and shredded, and the tissue sensory evaluation group performs sensory quality evaluation to obtain various sensory quality index values of the tobacco leaf raw materials; The formula module design unit is used for determining the types of tobacco leaf raw materials in each group with target function based on the sensory quality index function guiding approaching principle of the tobacco leaf raw materials according to the function positioning of the formula module and the sensory quality index value, and accordingly the tobacco leaf raw materials in each group are proportionally assembled into the target function formula module for threshing and redrying processing.

Description

Design method of threshing and redrying formula module Technical Field The invention relates to the field of tobacco leaf formulas, in particular to a design method of a threshing and redrying formula module. Background Threshing and redrying are taken as tobacco leaves to enter a first workshop of industrial processing, play an important role in excavating and playing a role in raw material use value, and the design of a threshing and redrying formula module can provide homogenized tobacco leaves with stable raw material quality and style and high industrial availability for cigarette production, so that the threshing and redrying method is an important technical means for widening the raw material use range and guaranteeing the raw material quality. The production organization form of domestic tobacco leaves determines that the raw materials purchased by industrial enterprises are large in grade and small in batch, 42 grades are shared by raw materials in the national standard of flue-cured tobacco grading, and how to form modularized raw materials from different grades according to a certain principle by a formula technology is a precondition for guaranteeing the quality stability of the raw materials. In recent years, technological workers in the tobacco industry form some targeted technical means around threshing and redrying formula module design. For example, the invention of publication No. CN1830335A discloses a method for combining a plurality of different grades of tobacco leaves with the same or similar style characteristics according to a certain proportion and carrying out the formula design of raw materials according to the HTJ value of the chemical components of the tobacco leaves, the invention of publication No. CN 104568825B discloses a method for constructing and identifying the sensory quality characteristics of the raw materials by utilizing a near infrared spectrum scanning combination model and providing a rapid method for positioning the raw materials of the tobacco leaves in a formula module, and the invention of publication No. CN 111543668B discloses a method for substituting the raw materials of the tobacco leaves by collecting the near infrared spectrum of sample powder, combining six chemical indexes, part indexes and flavor indexes into the intrinsic quality characterization indexes of the tobacco leaves and carrying out the replacement of the raw materials of the tobacco leaves of the raw materials of the tobacco leaves by utilizing the near infrared spectrum model. The method provides a reference basis for the design of the threshing and redrying formula module. However, due to different processing characteristics, the module formed by the formulation technology faces fluctuation of processing quality stability in the threshing and redrying process, and particularly, the uniformity and stability of moisture of the tobacco flakes at the outlet of the redrying process are poor due to inconsistent drying characteristics of the raw materials after the formulation module is subjected to the tobacco flakes redrying process, so that risks are brought to alcoholization quality of the raw materials in the subsequent packaging and storage processes. How to realize reasonable assembly of threshing and redrying formula modules on the premise of ensuring the moisture stability of a redrying outlet is one of the key problems currently faced. Disclosure of Invention The invention provides a design method of a threshing and redrying formula module, which aims to solve the technical problems, and the design method is characterized in that firstly clustering grouping is carried out based on non-isothermal drying activation energy values of tobacco raw materials, and then the threshing and redrying formula module with formula functional characteristics and processing uniformity is designed by combining the organoleptic quality characteristics of the tobacco raw materials in each group, so that uniformity and stability of moisture of redried tobacco sheets are realized. The technical scheme adopted for solving the technical problems is as follows: A design method of threshing and redrying formula module comprises Acquiring non-isothermal drying activation energy values of all tobacco leaf raw materials to be fed into a formula module; dividing tobacco raw materials into a plurality of groups through cluster analysis based on the non-isothermal drying activation energy value; obtaining the sensory quality index value of a single-material cigarette made of each tobacco raw material; According to the functional positioning of the formula module and the sensory quality index value, the tobacco leaf raw materials in each group are proportionally assembled into a target functional formula module for threshing and redrying processing based on the sensory quality index functional guiding approaching principle of the tobacco leaf raw materials. As an improvement of the technical proposal, the design me