CN-121994014-A - Temperature self-adaptive control method applied to Chinese herbal medicine drying

CN121994014ACN 121994014 ACN121994014 ACN 121994014ACN-121994014-A

Abstract

The invention discloses a temperature self-adaptive control method applied to Chinese herbal medicine drying, which relates to the technical field of Chinese herbal medicine drying process control and comprises the following steps: and establishing a process observation mode of temperature self-adaptive control, continuously acquiring the conditions of the drying rate change, the moisture content of the surface of the medicinal material and the temperature difference between the inside and the outside of the medicinal material in the drying process of the Chinese medicinal material, and uniformly arranging the conditions of the drying rate change, the moisture content of the surface of the medicinal material and the temperature difference between the inside and the outside of the medicinal material into a temperature regulation rhythm record. According to the invention, through multidimensional process observation and rhythmization record, the phenomenon that the temperature rise is triggered by transient state rising of the drying rate caused by volume shrinkage in the later drying stage is avoided, so that the temperature regulation is consistent with the real water loss state of the medicinal material, and meanwhile, the regulation rhythm of the cooperation of the early callback and the sectional cooling is introduced in the later stage, so that the accumulation of temperature fluctuation is reduced, the drying process is stabilized, and the structural integrity and the consistency of the intrinsic medicinal material are ensured.

Inventors

WU JIE
WU XIAOHUI
WU HAO
WANG SIWEN

Assignees

浙江每日元康生物科技有限公司

Dates

Publication Date: 20260508
Application Date: 20260407

Claims (8)

1. The temperature self-adaptive control method applied to the drying of the Chinese herbal medicine is characterized by comprising the following steps of: Establishing a process observation mode of temperature self-adaptive control, continuously acquiring the conditions of the change of the drying rate, the moisture content of the surface of the medicinal material and the temperature difference between the inside and the outside of the medicinal material in the drying process of the Chinese medicinal material, and uniformly arranging the conditions of the change of the drying rate, the moisture content of the surface of the medicinal material and the temperature difference between the inside and the outside of the medicinal material into a temperature regulation rhythm record; Positioning a short-time lifting phenomenon of the drying rate of the Chinese herbal medicine material in the drying ending stage around a temperature regulation rhythm record, and marking a corresponding time period by combining the volume shrinkage change of the Chinese herbal medicine material in the drying ending stage to form a process characteristic record reflecting the volume shrinkage influence; around process characteristic records, splitting and analyzing sources of short-time lifting phenomena of the drying rate, distinguishing normal water evaporation change from concentrated water release conditions caused by volume shrinkage extrusion, backtracking occurrence time of the short-time lifting phenomena of the drying rate, and finishing to form an abnormal situation list; Around the abnormal situation list, temperature adjusting logic of temperature self-adaptive control is adjusted, temperature rising judging conditions are avoided in a time period corresponding to the abnormal situation list, drying temperature is controlled to keep slowly and stably changing, and continuous temperature adjusting arrangement is formed according to the adjusted temperature adjusting logic; By means of continuous temperature regulation and control arrangement, an adjusting rhythm of the cooperation of the advanced callback and the sectional cooling is introduced in the later drying stage of the Chinese herbal medicine material, and the fluctuation accumulation of the drying temperature is reduced by means of alternate water release.
2. The temperature adaptive control method applied to the drying of Chinese herbal medicine according to claim 1, wherein the temperature adjustment rhythm record generation step is as follows: Continuously tracking the water loss process in the drying process of the Chinese herbal medicine, obtaining a change track of the drying rate evolving along with time through continuous recording of the quality change trend of the Chinese herbal medicine in unit time, and synchronously marking the change of the drying rate and a corresponding time node; Performing process observation on the wet performance of the surface of the medicinal material along a time node of the change of the drying rate, and correspondingly recording the wet state, the water separation trace and the surface layer drying appearance change into the drying rate change trace so as to form a corresponding relation between the wet performance of the surface of the medicinal material and the drying rate change; On the basis of finishing synchronous arrangement of the change of the drying rate and the moisture content of the surface of the medicinal material, introducing continuous records of the temperature difference conditions inside and outside the medicinal material, and arranging according to the same time scale as the change of the drying rate so that the temperature difference conditions inside and outside the medicinal material correspond to the moisture content of the surface of the medicinal material; And (3) uniformly summarizing the change of the drying rate, the moisture content of the surface of the medicinal material and the temperature difference between the inside and the outside of the medicinal material, and integrating and arranging according to the time sequence of the drying process to form a temperature regulation rhythm record.
3. The temperature adaptive control method for drying Chinese herbal medicine according to claim 2, wherein the process characteristic record forming step is as follows: The drying process is browsed in sections along the time sequence recorded by the temperature regulation rhythm, and the time range of the drying ending stage is screened by taking the drying rate change as a main line; In the drying ending stage, continuously comparing the change of the drying rate, positioning the short-time lifting phenomenon of the drying rate, and writing the corresponding time index into a temperature regulation rhythm record; the short-time lifting phenomenon of the drying rate is surrounded, the process record of the volume shrinkage change is synchronously introduced, and the volume shrinkage change is split into a shrinkage starting section, a shrinkage pushing section and a shrinkage stabilizing section which are arranged correspondingly according to time indexes; And marking a corresponding time period by combining the short-time lifting phenomenon of the drying rate and the volume shrinkage change, and forming a process characteristic record reflecting the volume shrinkage influence according to a fixed field sequence.
4. The temperature self-adaptive control method for drying Chinese herbal medicine according to claim 3, wherein the process characteristic record uses a time index as a main line, the drying rate change, the surface moisture performance of the medicine, the internal and external temperature difference condition of the medicine and the volume shrinkage change are arranged according to a fixed field sequence, and the marked abnormal time period is written back into the temperature regulation rhythm record, so that the volume shrinkage influence in the drying ending stage forms a traceable expression in the continuous record.
5. The temperature adaptive control method for drying Chinese herbal medicine according to claim 3, wherein the abnormal situation list forming step is as follows: According to the sequence of fixed fields of the process characteristic record, positioning the starting time, the continuous time and the ending time of the short-time lifting phenomenon of the drying rate by taking a time index as a main line, and synchronously extracting the moisture content of the surface of the medicinal material, the temperature difference condition inside and outside the medicinal material and the volume shrinkage change; Segmenting tissues in an abnormal time period along a time index, and inducing normal water evaporation change evidence and water concentration release evidence caused by volume shrinkage extrusion in parallel around each time period; According to the consistency of time indexes, the continuity of surface moisture expression, the consistency of the change direction of the temperature difference conditions inside and outside the medicinal materials and the propelling synchronism of volume shrinkage change, splitting and distinguishing the source of the short-time lifting phenomenon of the drying rate and writing back the process characteristic record; And (5) backtracking the occurrence time of the short-time lifting phenomenon of the drying rate, extracting the corresponding time boundary and the volume shrinkage change fragment information, and finishing to form an abnormal situation list.
6. The method according to claim 5, wherein, when forming the abnormal condition list, the record of the volume shrinkage change in the shrinkage advancing section and aligned with the time index for keeping the short-time lifting of the drying rate is written into the abnormal condition list as a limiting condition, and the time correspondence between the moisture content of the surface of the medicinal material and the temperature difference between the inside and outside of the medicinal material is maintained in the abnormal condition list.
7. The method for adaptively controlling temperature in drying Chinese herbal medicine according to claim 5, wherein the temperature control arrangement is formed as follows: Reading the time boundary of the abnormal time period according to the abnormal situation list, and mapping the time boundary of the abnormal time period into a time index of the temperature regulation rhythm record to form an abnormal time period index table; disassembling the temperature rise judgment conditions in the temperature regulation logic along an abnormal time period index table, and introducing temperature rise judgment avoiding conditions in the abnormal time period to enable the temperature rise judgment not to be effective in the abnormal time period; Around the abnormal time segment set, the tissue drying temperature is kept in a slow and steady sectional gradual change mode, and the temperature change result is written into a corresponding time index of the temperature regulation rhythm record; and uniformly arranging the temperature change requirements inside and outside the abnormal time period according to the adjusted temperature regulation logic to form continuous temperature regulation arrangement.
8. The method for adaptively controlling the temperature in the drying process of Chinese herbal medicines according to claim 7, wherein the step of adjusting the temperature of the tissue by adjusting the temperature in advance and reducing the temperature in a sectional manner is introduced in the later stage of the drying process of the Chinese herbal medicines by means of continuous temperature adjustment and control arrangement, and the step of changing the drying temperature by combining the alternate release of water is as follows: performing time index window division on the traditional Chinese medicine materials in the later drying stage along with continuous temperature regulation and control arrangement, finishing to form a later regulation and control fragment sequence, and simultaneously selecting a time index point corresponding to the moisture-containing performance convergence characteristic of the surface of the medicinal materials as an early callback anchor point; surrounding an early callback anchor point, rewriting the temperature maintaining section into a callback section, and sequentially organizing the cooling section and the buffer section after the callback section to form a sectional cooling regulation rhythm of continuous arrangement of the callback section, the cooling section and the buffer section; Depending on the sectional cooling regulation rhythm, embedding a release section and an intermittent section for alternately releasing moisture in the cooling section and the buffer section, and writing the corresponding temperature change requirement into a continuous temperature regulation arrangement; And continuously splicing the temperature change tracks around the later regulation segment sequence, and reducing the fluctuation accumulation of the drying temperature by adjusting the temperature change transition interval and the limited change amplitude condition of the subsequent callback segment and the cooling segment to form the dynamic temperature regulation arrangement throughout the whole drying process.

Description

Temperature self-adaptive control method applied to Chinese herbal medicine drying Technical Field The invention relates to the technical field of traditional Chinese medicine drying process control, in particular to a temperature self-adaptive control method applied to drying of Chinese herbal medicines. Background The temperature self-adaptive control applied to the drying of the Chinese herbal medicine is to dynamically adjust and control the drying temperature along with the process change in the drying process of the Chinese herbal medicine instead of adopting a fixed heating temperature or a single-stage constant temperature mode around different states of the Chinese herbal medicine in the drying process. Specifically, the control mode takes the water content characteristic, the thermal response characteristic or the apparent drying rate change of the medicinal materials in the heating stage, the water loss stage and the drying stabilization stage as adjustment basis, so that the drying temperature can be gradually adjusted along with the state change of the medicinal materials, the loss of active ingredients caused by the temperature sudden rise is avoided in the stage with higher water content, the adaptive heat input is maintained in the continuous water precipitation stage, and the temperature is reduced in the stage close to the completion of drying so as to prevent overdry, coking or structural damage, thereby realizing a temperature adjustment and control path matched with the physical property change of the Chinese herbal medicine materials in the whole drying process, and ensuring the continuity, the stability and the consistency of the quality of the medicinal materials in the drying process. The prior art has the defect that the temperature self-adaptive control of the drying process of the Chinese herbal medicine material is often based on the change of the drying rate as a main judgment basis. In the stage of finishing the near drying, the medicinal material tissues shrink obviously due to continuous water loss, residual moisture in the medicinal material tissues is released intensively under the action of structural extrusion, and the drying rate rises in a short time. The prior art control process easily misidentifies this transient change as still in the high water phase, triggering a temperature up-regulation operation. Such misjudgment can lead to that the medicinal materials continue to bear the action of higher temperature under the condition of low water content, so that part of heat-sensitive effective components are thermally degraded, and meanwhile, the surface pigment reaction is accelerated, and the surface color is abnormally deepened. Because the problem usually occurs in the later drying stage, the problem is not easy to be found in time after the process is finished, and finally the inherent property of the medicinal materials is easy to be reduced, so that the overall quality and the use value are affected. The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art. Disclosure of Invention The invention aims to provide a temperature self-adaptive control method for drying Chinese herbal medicine materials, which solves the problems in the background art. In order to achieve the above purpose, the invention provides the following technical scheme that the temperature self-adaptive control method applied to the drying of Chinese herbal medicine materials comprises the following steps: Establishing a process observation mode of temperature self-adaptive control, continuously acquiring the conditions of the change of the drying rate, the moisture content of the surface of the medicinal material and the temperature difference between the inside and the outside of the medicinal material in the drying process of the Chinese medicinal material, and uniformly arranging the conditions of the change of the drying rate, the moisture content of the surface of the medicinal material and the temperature difference between the inside and the outside of the medicinal material into a temperature regulation rhythm record; Positioning a short-time lifting phenomenon of the drying rate of the Chinese herbal medicine material in the drying ending stage around a temperature regulation rhythm record, and marking a corresponding time period by combining the volume shrinkage change of the Chinese herbal medicine material in the drying ending stage to form a process characteristic record reflecting the volume shrinkage influence; around process characteristic records, splitting and analyzing sources of short-time lifting phenomena of the drying rate, distinguishing normal water evaporation change from concentrated water release conditions caused by volume shrinkage extrusion, backtrackin