CN115655382B - Chemical fiber production line process on-line monitoring analysis system - Google Patents
Chemical fiber production line process on-line monitoring analysis system Download PDFInfo
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Abstract
The invention relates to the technical field of chemical fiber production, and particularly discloses an online monitoring and analyzing system for a chemical fiber production line process, which comprises an oxidation information acquisition module, an oxidation information analysis and confirmation module, a carbonization information acquisition module, a carbonization information analysis and confirmation module, a surface treatment information acquisition module, a surface treatment analysis and confirmation module and an early warning terminal.
Description
Technical Field
The invention belongs to the technical field of chemical fiber yarn production, and relates to an on-line monitoring and analyzing system for a chemical fiber yarn production line process.
Background
The carbon fiber is a chemical fiber composed of carbon elements, and is widely applied to the fields of buildings, chemical engineering, industry and the like, so that the production line process of the carbon fiber needs to be monitored, the production quality of the carbon fiber is guaranteed, and a foundation is further provided for subsequent use of the carbon fiber.
Currently, the main method for analyzing the production quality of carbon fibers is to perform spot inspection on the produced carbon fibers, and it is obvious that the method has the following problems: 1. the method for detecting the quality of the carbon fibers in a spot check mode has strong contingency and sidedness, cannot comprehensively show the production quality of the carbon fibers, has certain limitation, cannot effectively guarantee the production quality of the carbon fibers, and cannot guarantee the safety and stability of the subsequent carbon fibers in the using process.
2. The current technology does not analyze the change of raw materials after the processing of each stage of the carbon fiber production line, so that the quality of the processing of each stage of the carbon fiber production line can not be analyzed, the qualified condition of the production of each stage of the carbon fiber production line can not be known, the quality of the finished carbon fiber production can not be guaranteed, and the production effect and the production efficiency of the carbon fiber production line can not be improved.
Disclosure of Invention
The invention aims to provide an on-line monitoring and analyzing system for a chemical fiber yarn production line process, which solves the problems in the background technology.
The purpose of the invention can be realized by the following technical scheme: a chemical fiber production line process on-line monitoring and analyzing system comprises: and the oxidation information acquisition module is used for dividing each oxidation acquisition time point according to a preset time interval in the oxidation process of the oxidation furnace in the specified carbon fiber production line, further acquiring the temperature and the oxygen concentration of the oxidation furnace at each oxidation acquisition time point in the specified carbon fiber production line, and acquiring the oxidation time in the oxidation furnace and the image of the oxidized raw material in the oxidation furnace.
And the oxidation information analysis and confirmation module is used for analyzing the oxidation process corresponding to the specified carbon fiber production line, analyzing the color of the oxidized raw material corresponding to the specified carbon fiber production line and further confirming the qualified oxidation quality condition corresponding to the specified carbon fiber production line.
And the carbonization information acquisition module is used for dividing each carbonization acquisition time point according to a preset time interval in the carbonization process in the carbonization furnace in the specified carbon fiber production line, further acquiring the temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration of the carbonization furnace at each carbonization acquisition time point in the specified carbon fiber production line, and acquiring the weight and the roughness of the raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line.
And the carbonization information analysis and confirmation module is used for analyzing the carbonization process corresponding to the specified carbon fiber production line, analyzing the quality of the carbonized raw materials corresponding to the specified carbon fiber production line and further confirming the qualified condition of the carbonization quality corresponding to the specified carbon fiber production line.
The surface treatment information acquisition module is used for acquiring treatment information in surface treatment in a specified carbon fiber production line and apparent information of the carbon fiber after the surface treatment, wherein the treatment information comprises the pH value of electrolyte, the concentration of the electrolyte and the current, and the apparent information of the carbon fiber comprises roughness, the size of each groove and the distance between every two adjacent grooves.
And the surface treatment analysis and confirmation module is used for analyzing the treatment information corresponding to the surface treatment in the specified carbon fiber production line, analyzing the quality of the carbon fiber corresponding to the specified carbon fiber production line and further confirming the qualified condition of the surface treatment result corresponding to the specified carbon fiber production line.
And the early warning terminal is used for respectively giving early warning prompts when the oxidation quality, the carbonization quality or the surface treatment result corresponding to the specified carbon fiber production line is unqualified.
Optionally, the oxidation process corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows: substituting the oxidation time in an oxidation furnace in a specified carbon fiber production line, the temperature corresponding to each oxidation acquisition time point and the oxygen concentration into a calculation formula
In the step (a), the first oxidation quality meeting index which corresponds to the appointed carbon fiber production line is obtained>
Wherein Y represents the oxidation time in an oxidation furnace in a specified carbon fiber production line, and>
、/>
respectively represents the temperature and the oxygen concentration of an oxidation oven in a specified carbon fiber production line corresponding to the t oxidation acquisition time point, and the oxygen concentration of the oxidation oven>
、/>
Respectively corresponding reference temperature and reference oxygen concentration at the t-th oxidation acquisition time point of an oxidation furnace in a set specified carbon fiber production line>
For a set reference oxidation time>
、/>
、/>
The weight factors are respectively corresponding to the set oxidation time, the temperature of the oxidation furnace and the oxygen concentration in the oxidation furnace, t represents the number corresponding to each oxidation acquisition time point,
。
optionally, the color of the oxidized raw material corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows: dividing the image of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line into sub-regions according to a preset size, and obtaining the hue, saturation and lightness corresponding to the image of each sub-region of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line, thereby calculating to obtain the color coincidence index corresponding to the image of each sub-region of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line.
According to the formula
Obtaining the oxidation color of the raw material corresponding to the appointed carbon fiber production line which accords with the index->
In which>
、/>
Respectively shows that the colors corresponding to the (i + 1) th and the (i) th sub-area images of the oxidized raw material in the oxidation furnace in the appointed carbon fiber production line accord with the index and are used for judging whether the color of the oxidized raw material meets the index or not>
For a set permissible color match exponential difference, ->
I represents the number corresponding to each subarea image of the raw material oxidized in the oxidation furnace in the appointed carbon fiber production line, and i represents the number corresponding to each subarea image of the oxidized raw material in the oxidation furnace, and>
。
optionally, the confirming that the oxidation quality corresponding to the specified carbon fiber production line is qualified specifically comprises the following steps: the first oxidation quality corresponding to the appointed carbon fiber production line is matched with an index
And the oxidation color of the raw material meets the index->
Substituted into the calculation formula>
In the step (a), the oxidation quality corresponding to the appointed carbon fiber production line is obtained and accords with the index->
Wherein->
、/>
The first oxidation quality coincidence index and the raw material oxidation color coincidence index are set as weight factors corresponding to the first oxidation quality coincidence index and the raw material oxidation color coincidence index respectively.
And comparing the oxidation quality conformity index corresponding to the specified carbon fiber production line with a set standard oxidation quality conformity index, if the oxidation quality conformity index corresponding to the specified carbon fiber production line is greater than or equal to the standard oxidation quality conformity index, judging that the oxidation quality corresponding to the specified carbon fiber production line is qualified, otherwise, judging that the oxidation quality corresponding to the specified carbon fiber production line is unqualified.
Optionally, the pair of specified carbon fibers is producedAnd analyzing the carbonization process corresponding to the line, wherein the specific analysis process is as follows: substituting the temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration of the carbonization furnace in each carbonization acquisition time point in a specified carbon fiber production line into a calculation formula
In the step (a), the first carbonization quality meeting the index->
Wherein->
、/>
、/>
、/>
Respectively indicates the condition that the carbonization furnace is at the fifth position or the fifth position in the designated carbon fiber production line>
The temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration corresponding to the carbonization collection time point are measured>
、/>
、
、/>
Respectively for the set carbonization oven at the fifth->
A reference temperature, a reference nitrogen concentration, a reference hydrogen concentration, a reference oxygen concentration,. According to the carbonation collection time point>
、/>
、/>
、/>
Respectively corresponding weight factors of the set carbonization furnace temperature, the set carbonization furnace nitrogen concentration, the set carbonization furnace hydrogen concentration and the set carbonization furnace oxygen concentration>
The numbers corresponding to the respective carbonization collection time points are shown,
and e is a natural constant.
Optionally, the quality of the carbonized raw material corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows: substituting the weight and the roughness of the raw materials before and after carbonization in a carbonization furnace in a specified carbon fiber production line into a calculation formula
In the step (a), the carbonization quality of the raw material corresponding to the specified carbon fiber production line meets the index->
Wherein is present>
、/>
Respectively represents the weight of the raw material before and after carbonization in a carbonization furnace in a specified carbon fiber production line, and/or the weight of the raw material before and after carbonization in the carbonization furnace>
、/>
Respectively represents the corresponding roughness of the raw material before and after carbonization in a carbonization furnace in a specified carbon fiber production line, and then is used for judging whether the raw material is carbonized or not>
、/>
Respectively set weight reduction ratio and roughness reduction ratio after the carbonization of the raw material>
、/>
The weight factors are respectively corresponding to the set weight and roughness of the raw material.
Optionally, the confirmation of the qualified carbonization quality corresponding to the specified carbon fiber production line specifically includes the following steps: the first carbonization quality corresponding to the appointed carbon fiber production line is in accordance with the index
And the carbonization quality of the raw material meets the index->
Substituted into the calculation formula->
In the method, the carbonization quality conformity index corresponding to the specified carbon fiber production line is obtained
Wherein is present>
、/>
The first carbonization quality coincidence index and the raw material carbonization quality coincidence index are set as weight factors corresponding to the first carbonization quality coincidence index and the raw material carbonization quality coincidence index respectively, and e is a natural constant.
And comparing the carbonization quality conformity index corresponding to the specified carbon fiber production line with a set standard carbonization quality conformity index, if the carbonization quality conformity index corresponding to the specified carbon fiber production line is greater than or equal to the standard carbonization quality conformity index, judging that the carbonization quality corresponding to the specified carbon fiber production line is qualified, otherwise, judging that the carbonization quality corresponding to the specified carbon fiber production line is unqualified.
Optionally, the processing information in the surface processing corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows: substituting the pH value, electrolyte concentration and current of the electrolyte in the surface treatment of the specified carbon fiber production line into a calculation formula
In the method, the obtained first surface treatment result corresponding to the appointed carbon fiber production line accords with the index->
Wherein is present>
、/>
、/>
Respectively specifying the pH value, electrolyte concentration and current of electrolyte in surface treatment in the carbon fiber production line>
、/>
、/>
Respectively set pH value, reference electrolyte concentration and reference current of the reference electrolyte>
、/>
、/>
Respectively set pH value difference, permissible electrolyte concentration difference and permissible current difference of permissible electrolyte>
、/>
、/>
The weight factors are respectively corresponding to the set pH value of the electrolyte, the electrolyte concentration and the current.
Optionally, the quality of the carbon fiber corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows: substituting the roughness corresponding to the carbon fiber after surface treatment in the specified carbon fiber production line, the size of each groove and the distance between every two adjacent grooves into a calculation formula
In the step (a), the carbon fiber quality coincidence index which corresponds to the appointed carbon fiber production line is obtained>
Wherein is present>
Represents the roughness corresponding to the carbon fiber after surface treatment in a specified carbon fiber production line and/or the roughness corresponding to the treated carbon fiber>
Represents the corresponding size of the jth groove of the carbon fiber after surface treatment in the appointed carbon fiber production line, and is/is>
、/>
Respectively represents the j +1 th groove and the j th groove of the carbon fiber after surface treatment in a specified carbon fiber production lineSpacing, spacing between the jth groove and the j-1 th groove, < >>
、/>
Is respectively set as a standard groove size and a standard adjacent groove spacing>
、/>
、/>
Weight factors corresponding to the set roughness of the carbon fiber, the size of the groove and the distance between the grooves respectively, j represents the number corresponding to each groove, and->
。
Optionally, the confirming step of confirming that the surface treatment result corresponding to the specified carbon fiber production line is qualified specifically includes: the first surface treatment result corresponding to the appointed carbon fiber production line conforms to the index
Carbon fiber quality conformity index
Substituted into the calculation formula->
In the step (a), the surface treatment result corresponding to the specified carbon fiber production line is obtained and accords with the index->
Wherein->
、/>
And e is a natural constant, wherein the weight factors correspond to the set first surface treatment result coincidence index and the carbon fiber quality coincidence index respectively.
And comparing the surface treatment production quality conformity index corresponding to the specified carbon fiber production line with a set standard surface treatment production quality conformity index, if the surface treatment production quality conformity index corresponding to the specified carbon fiber production line is greater than or equal to the standard surface treatment production quality conformity index, judging that the surface treatment result corresponding to the specified carbon fiber production line is qualified, otherwise, judging that the surface treatment result corresponding to the specified carbon fiber production line is unqualified.
Compared with the prior art, the invention has the following beneficial effects: 1. according to the chemical fiber production line process on-line monitoring and analyzing system provided by the invention, the problems of contingency and one-sidedness existing in the prior art sampling inspection are effectively solved by monitoring and analyzing the oxidation process, the carbonization process and the surface treatment in the specified carbon fiber production line, the comprehensive and intelligent monitoring and analysis of the carbon fiber production line are realized, the production quality of raw materials in the oxidation process, the carbonization process and the surface treatment is effectively ensured, the production quality of carbon fibers is further ensured, the safety and the stability of the carbon fibers in the subsequent use process are improved to a certain extent, and the production effect and the production efficiency of the carbon fiber production line are also effectively increased.
According to the invention, the temperature, the oxygen concentration, the oxidation time and the image of the oxidized raw material in the oxidation furnace are acquired in the oxidation information acquisition module, so that a foundation is laid for the subsequent oxidation process analysis, and meanwhile, reliable data is provided for the color analysis of the oxidized raw material, the accuracy and objectivity of the oxidation process analysis and the color analysis result of the raw material are effectively ensured, and meanwhile, the oxidation effect of the oxidation furnace is effectively increased.
According to the invention, the temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration in the carbonization furnace and the weight and the roughness of the raw materials before and after carbonization are acquired in the carbonization information acquisition module, so that accurate and visual data are provided for the subsequent carbonization process analysis and the raw material carbonization quality analysis, the objectivity and the reliability of the carbonization process and the raw material carbonization quality analysis result are effectively ensured, and meanwhile, reliable quality guarantee is provided for the subsequent production.
According to the invention, the pH value of the electrolyte, the electrolyte concentration, the current and the apparent information of the carbon fiber are collected in the surface treatment information collection module, so that a foundation is laid for subsequent surface treatment analysis and quality analysis of the carbon fiber, the production quality of the carbon fiber after surface treatment is effectively ensured, and the production effect of the carbon fiber is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a system module connection structure according to the present invention.
Detailed description of the preferred embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an online monitoring and analyzing system for a chemical fiber production line process includes an oxidation information collecting module, an oxidation information analyzing and confirming module, a carbonization information collecting module, a carbonization information analyzing and confirming module, a surface processing information collecting module, a surface processing analyzing and confirming module, and an early warning terminal.
The oxidation information analysis and confirmation module is respectively connected with the oxidation information acquisition module and the early warning terminal, the carbonization information analysis and confirmation module is respectively connected with the carbonization information acquisition module and the early warning terminal, and the surface treatment analysis and confirmation module is respectively connected with the surface treatment information acquisition module, the carbonization information acquisition module and the early warning terminal.
And the oxidation information acquisition module is used for dividing each oxidation acquisition time point according to a preset time interval in the oxidation process of the oxidation furnace in the specified carbon fiber production line, further acquiring the temperature and the oxygen concentration of the oxidation furnace at each oxidation acquisition time point in the specified carbon fiber production line, and acquiring the oxidation time in the oxidation furnace and the image of the oxidized raw material in the oxidation furnace.
The carbon fibers are made of acrylic fibers, viscose fibers, or the like.
In a specific embodiment, the temperature and oxygen concentration of an oxidation furnace in a specified carbon fiber production line at each oxidation acquisition time point are acquired, and the oxidation time in the oxidation furnace and the image of the oxidized raw material in the oxidation furnace are acquired, wherein the acquisition process comprises the following steps: the temperature of each oxidation acquisition time point on the surface of the oxidation furnace in the appointed carbon fiber production line is acquired through the temperature sensor, and the temperature of the oxidation furnace in the appointed carbon fiber production line corresponding to each oxidation acquisition time point is obtained.
The oxygen concentration of each oxidation acquisition time point in the oxidation furnace in the specified carbon fiber production line is acquired through the oxygen sensor, the oxygen concentration of the oxidation furnace in the specified carbon fiber production line corresponding to each oxidation acquisition time point is obtained, and meanwhile, the oxidation time in the oxidation furnace in the specified carbon fiber production line is obtained from the carbon fiber production management background.
And acquiring the image of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line by using the camera to obtain the image of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line.
According to the embodiment of the invention, the temperature, the oxygen concentration, the oxidation time and the image of the oxidized raw material in the oxidation furnace are acquired, so that a foundation is laid for the subsequent oxidation process analysis, meanwhile, reliable data are provided for the color analysis of the oxidized raw material, the accuracy and objectivity of the oxidation process analysis and the color analysis result of the raw material are effectively ensured, and the oxidation effect of the oxidation furnace is effectively increased.
And the oxidation information analysis and confirmation module is used for analyzing the oxidation process corresponding to the specified carbon fiber production line, analyzing the color of the oxidized raw material corresponding to the specified carbon fiber production line and further confirming the qualified oxidation quality condition corresponding to the specified carbon fiber production line.
In a specific embodiment, the oxidation process corresponding to a given carbon fiber production line is analyzed as follows: substituting the oxidation time in an oxidation furnace in a specified carbon fiber production line, the temperature corresponding to each oxidation acquisition time point and the oxygen concentration into a calculation formula
In the step (a), the first oxidation quality meeting index which corresponds to the appointed carbon fiber production line is obtained>
Wherein Y represents the oxidation time in an oxidation oven in a given carbon fiber production line, and>
、/>
respectively represents the temperature and the oxygen concentration corresponding to the t-th oxidation acquisition time point of an oxidation furnace in a specified carbon fiber production line, and the device>
、/>
Respectively corresponding to a reference temperature and a reference oxygen concentration at the t-th oxidation collection time point of an oxidation furnace in a set specified carbon fiber production line, and then selecting the oxygen concentration in the oxidation furnace>
For a set reference oxidation time>
、/>
、/>
Respectively corresponding weight factors of the set oxidation time, the temperature of the oxidation furnace and the oxygen concentration in the oxidation furnace, t represents the number corresponding to each oxidation collection time point, and/or>
。
In yet another specific embodiment, the color of the oxidized raw material corresponding to a given carbon fiber production line is analyzed by the following specific analysis process: dividing the image of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line into sub-regions according to a preset size, and obtaining the hue, saturation and lightness corresponding to the image of each sub-region of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line, thereby calculating to obtain the color coincidence index corresponding to the image of each sub-region of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line.
According to the formula
Obtaining the oxidation color of the raw material corresponding to the appointed carbon fiber production line which accords with the index->
In which>
、/>
Respectively shows that the colors corresponding to the (i + 1) th and the (i) th sub-area images of the oxidized raw material in the oxidation furnace in the appointed carbon fiber production line accord with the index and are used for judging whether the color of the oxidized raw material meets the index or not>
In order to set an allowable color match exponent difference>
I represents the number corresponding to each subarea image of the raw material oxidized in the oxidation furnace in the appointed carbon fiber production line, and/or the number corresponding to each subarea image of the raw material oxidized in the oxidation furnace>
。
In the above, the color coincidence index corresponding to the image of each sub-region of the raw material after oxidation in the oxidation furnace in the specified carbon fiber production line is obtained by calculation, and the specific calculation process is as follows: substituting the hue, saturation and brightness corresponding to each subregion image of the oxidized raw material in an oxidation furnace in a specified carbon fiber production line into a calculation formula
In the method, the color corresponding to the image of each subarea of the oxidized raw material in the oxidation furnace in the appointed carbon fiber production line is obtained and accords with the index->
Wherein
、/>
、/>
Respectively represents the hue, saturation and brightness corresponding to the ith sub-area image of the raw material oxidized in the oxidation furnace in the appointed carbon fiber production line>
、/>
、/>
Is a set reference hue, a reference saturation, a reference brightness, < > respectively>
、/>
、/>
The weighting factors are respectively corresponding to the set hue, saturation and lightness. />
In another specific embodiment, the oxidation quality qualification condition corresponding to the specified carbon fiber production line is confirmed by the following specific confirmation process: the first oxidation quality corresponding to the appointed carbon fiber production line is in accordance with the index
And the oxidation color of the starting material corresponds to an index>
Substituted into the calculation formula->
In the step (a), the oxidation quality corresponding to the appointed carbon fiber production line is obtained and accords with the index->
Wherein->
、/>
The first oxidation quality coincidence index and the raw material oxidation color coincidence index are set as weight factors corresponding to the first oxidation quality coincidence index and the raw material oxidation color coincidence index respectively.
And comparing the oxidation quality conformity index corresponding to the specified carbon fiber production line with the set standard oxidation quality conformity index, if the oxidation quality conformity index corresponding to the specified carbon fiber production line is greater than or equal to the standard oxidation quality conformity index, judging that the oxidation quality corresponding to the specified carbon fiber production line is qualified, otherwise, judging that the oxidation quality corresponding to the specified carbon fiber production line is unqualified.
And the carbonization information acquisition module is used for dividing each carbonization acquisition time point according to a preset time interval in the carbonization process in the carbonization furnace in the specified carbon fiber production line, further acquiring the temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration of the carbonization furnace at each carbonization acquisition time point in the specified carbon fiber production line, and acquiring the weight and the roughness of the raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line.
In a specific embodiment, the temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration of the carbonization furnace in the specified carbon fiber production line at each carbonization collection time point are collected, and the weight and the roughness of the raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line are collected, wherein the collection process comprises the following steps: the temperature of each carbonization acquisition time point on the surface of the carbonization furnace in the specified carbon fiber production line is acquired through the temperature sensor, so that the temperature of the carbonization furnace in each carbonization acquisition time point in the specified carbon fiber production line is obtained.
And acquiring the nitrogen concentration, the hydrogen concentration and the oxygen concentration corresponding to each carbonization acquisition time point in the carbonization furnace in the specified carbon fiber production line through a gas sensor to obtain the nitrogen concentration, the hydrogen concentration and the oxygen concentration corresponding to each carbonization acquisition time point in the carbonization furnace in the specified carbon fiber production line.
The weight of the raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line is collected through a weight measuring instrument, so that the weight of the raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line is obtained.
The roughness of each detection point of raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line is collected through a surface roughness tester, the roughness of each detection point of the raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line is obtained, the average roughness of the raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line is obtained through average value calculation, and the average roughness is used as the roughness corresponding to the raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line.
According to the embodiment of the invention, the temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration in the carbonization furnace and the weight and the roughness of the raw materials before and after carbonization are collected, so that accurate and visual data are provided for the subsequent carbonization process analysis and the raw material carbonization quality analysis, the objectivity and the reliability of the carbonization process and the raw material carbonization quality analysis result are effectively ensured, and meanwhile, reliable quality guarantee is provided for the subsequent production.
And the carbonization information analysis and confirmation module is used for analyzing the carbonization process corresponding to the specified carbon fiber production line, analyzing the quality of the carbonized raw materials corresponding to the specified carbon fiber production line and further confirming the qualified carbonization quality condition corresponding to the specified carbon fiber production line.
In a specific embodiment, the carbonization process corresponding to a given carbon fiber production line is analyzed, and the specific analysis process is as follows: substituting the temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration of the carbonization furnace in each carbonization acquisition time point in a specified carbon fiber production line into a calculation formula
In the step (a), the first carbonization quality meeting the index->
Wherein->
、/>
、/>
、/>
Respectively indicates the condition of the carbonization furnace in a designated carbon fiber production line at a fifth or fifth place>
The temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration corresponding to the carbonization collection time point are measured>
、/>
、/>
、/>
Respectively for the set carbonization oven at the fifth->
Reference temperature, reference nitrogen concentration, reference hydrogen concentration, reference oxygen concentration corresponding to carbonization collection time point, and/or based on the carbonization collection time point>
、/>
、/>
、/>
Respectively set weighting factors corresponding to the temperature of the carbonization furnace, the nitrogen concentration of the carbonization furnace, the hydrogen concentration of the carbonization furnace and the oxygen concentration of the carbonization furnace, and>
denotes the number corresponding to each carbonized collection time point,. Sup.>
And e is a natural constant.
In another specific embodiment, the quality of the carbonized raw material corresponding to a given carbon fiber production line is analyzed by the following specific analysis process: substituting the weight and the roughness of the raw materials before and after carbonization in a carbonization furnace in a specified carbon fiber production line into a calculation formula
In the step (a), the carbonization quality of the raw material corresponding to the specified carbon fiber production line meets the index->
Wherein is present>
、/>
Respectively represents the weight of the raw material before and after carbonization in a carbonization furnace in a specified carbon fiber production line, and/or the weight of the raw material before and after carbonization in the carbonization furnace>
、/>
Respectively represents the corresponding roughness of the raw material before and after carbonization in a carbonization furnace in a specified carbon fiber production line, and then is used for judging whether the raw material is carbonized or not>
、/>
Respectively set weight reduction ratio and roughness reduction ratio after the carbonization of the raw material>
、/>
The weight factors are respectively corresponding to the set weight and roughness of the raw material.
In a further specific embodiment, the carbonization quality qualification condition corresponding to the specified carbon fiber production line is confirmed, and the specific confirmation process is as follows: the first carbonization quality corresponding to the appointed carbon fiber production line is in accordance with the index
And the carbonization quality of the raw material meets the index->
Substituted into the calculation formula->
In the step (a), the carbonization quality corresponding to the designated carbon fiber production line is obtained and meets the index->
Wherein is present>
、/>
The first carbonization quality coincidence index and the raw material carbonization quality coincidence index are set as weight factors corresponding to the first carbonization quality coincidence index and the raw material carbonization quality coincidence index respectively, and e is a natural constant.
And comparing the carbonization quality conformity index corresponding to the specified carbon fiber production line with a set standard carbonization quality conformity index, if the carbonization quality conformity index corresponding to the specified carbon fiber production line is greater than or equal to the standard carbonization quality conformity index, judging that the carbonization quality corresponding to the specified carbon fiber production line is qualified, otherwise, judging that the carbonization quality corresponding to the specified carbon fiber production line is unqualified.
The surface treatment information acquisition module is used for acquiring treatment information in surface treatment in a specified carbon fiber production line and apparent information of the carbon fiber after the surface treatment, wherein the treatment information comprises the pH value of electrolyte, the concentration of the electrolyte and the current, and the apparent information of the carbon fiber comprises roughness, the size of each groove and the distance between every two adjacent grooves.
In addition, the method used in the surface treatment process according to the embodiment of the present invention is an electrochemical oxidation method.
Also, carbon fibers formed from the raw material after the surface treatment is completed are also noted.
In a specific embodiment, the processing information in the surface treatment in the specified carbon fiber production line and the apparent information of the carbon fiber after the surface treatment are collected, and the specific collection process is as follows: and collecting the pH value of the electrolyte in the surface treatment in the specified carbon fiber production line through a pH value sensor to obtain the pH value of the electrolyte in the surface treatment in the specified carbon fiber production line.
And collecting the electrolyte concentration in the surface treatment of the specified carbon fiber production line through a liquid concentration tester to obtain the electrolyte concentration in the surface treatment of the specified carbon fiber production line.
And collecting the current between the anode and the cathode in the electrolyte during the surface treatment in the specified carbon fiber production line through an ammeter, and taking the current as the current corresponding to the surface treatment in the specified carbon fiber production line.
In the electrolyte, the positive electrode is a carbon fiber material, and the negative electrode is graphite, a copper plate, a nickel plate, or the like.
The roughness of the carbon fiber after surface treatment in the specified carbon fiber production line is collected through a roughness meter, and the roughness corresponding to the carbon fiber after surface treatment in the specified carbon fiber production line is obtained.
The carbon fiber images after surface treatment in the specified carbon fiber production line are acquired through the camera, the carbon fiber images after surface treatment in the specified carbon fiber production line are obtained, and then the size of each groove in the carbon fiber and the distance between the grooves are obtained.
According to the embodiment of the invention, the pH value of the electrolyte, the electrolyte concentration, the current and the apparent information of the carbon fiber are acquired, so that a foundation is laid for the subsequent surface treatment analysis and the quality analysis of the carbon fiber, the production quality of the carbon fiber after surface treatment is effectively ensured, and the production effect of the carbon fiber is greatly improved.
And the surface treatment analysis and confirmation module is used for analyzing the treatment information corresponding to the surface treatment in the specified carbon fiber production line, analyzing the quality of the carbon fiber corresponding to the specified carbon fiber production line and further confirming the qualified condition of the surface treatment result corresponding to the specified carbon fiber production line.
In a specific embodiment, the processing information in the surface processing corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows: substituting the pH value, electrolyte concentration and current of the electrolyte in the surface treatment in the specified carbon fiber production lineFormula for calculation
In the method, the obtained first surface treatment result corresponding to the appointed carbon fiber production line accords with the index->
Wherein is present>
、/>
、/>
Respectively appointing the pH value, the electrolyte concentration and the current of the electrolyte in the surface treatment in the carbon fiber production line>
、/>
、/>
Respectively set pH value of reference electrolyte, reference electrolyte concentration and reference current>
、/>
、/>
Respectively set allowable electrolyte pH value difference, allowable electrolyte concentration difference, allowable current difference, and/or>
、/>
、/>
The weight factors are respectively corresponding to the set pH value of the electrolyte, the electrolyte concentration and the current.
In another specific embodiment, the quality of the carbon fiber corresponding to a given carbon fiber production line is analyzed by the following specific analysis process: substituting the roughness corresponding to the carbon fiber after surface treatment in the specified carbon fiber production line, the size of each groove and the distance between every two adjacent grooves into a calculation formula
In the step (b), the quality of the carbon fiber corresponding to the appointed carbon fiber production line accords with the index->
Wherein is present>
Represents the roughness corresponding to the carbon fiber after surface treatment in a specified carbon fiber production line and/or the roughness corresponding to the treated carbon fiber>
Represents the corresponding size of the jth groove of the carbon fiber after surface treatment in the appointed carbon fiber production line, and is/is>
、/>
Respectively represents the space between the j +1 th groove and the j-1 th groove of the carbon fiber after surface treatment in the appointed carbon fiber production line, the space between the j-1 th groove and the j-1 th groove, and the judgment result shows whether the carbon fiber is subjected to surface treatment in the appointed carbon fiber production line or not>
、/>
Is respectively a set standard groove size, a standard adjacent groove spacing>
、/>
、/>
Weight factors corresponding to the set roughness of the carbon fiber, the size of the groove and the distance between the grooves respectively, j represents the number corresponding to each groove, and->
。
In another specific embodiment, the qualification of the surface treatment result corresponding to the specified carbon fiber production line is confirmed by the following specific confirmation process: the first surface treatment result corresponding to the appointed carbon fiber production line conforms to the index
The quality of the carbon fiber meets the index->
Substituted into the calculation formula->
In the step (a), the surface treatment result corresponding to the specified carbon fiber production line is obtained and accords with the index->
Wherein->
、/>
And e is a natural constant, wherein the weight factors correspond to the set first surface treatment result coincidence index and the carbon fiber quality coincidence index respectively.
And comparing the surface treatment production quality conformity index corresponding to the specified carbon fiber production line with a set standard surface treatment production quality conformity index, if the surface treatment production quality conformity index corresponding to the specified carbon fiber production line is greater than or equal to the standard surface treatment production quality conformity index, judging that the surface treatment result corresponding to the specified carbon fiber production line is qualified, otherwise, judging that the surface treatment result corresponding to the specified carbon fiber production line is unqualified.
According to the embodiment of the invention, the problems of contingency and one-sidedness existing in the spot inspection in the prior art are effectively solved by monitoring and analyzing the oxidation process, the carbonization process and the surface treatment in the specified carbon fiber production line, the comprehensive and intelligent monitoring and analysis of the carbon fiber production line are realized, the production quality of raw materials in the oxidation process, the carbonization process and the surface treatment is effectively ensured, the production quality of the carbon fibers is further ensured, the safety and the stability of the carbon fibers in the subsequent use process are also improved to a certain extent, and the production effect and the production efficiency of the carbon fiber production line are also effectively improved.
And the early warning terminal is used for respectively giving early warning prompts when the oxidation quality, the carbonization quality or the surface treatment result corresponding to the specified carbon fiber production line is unqualified.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (3)
1. The utility model provides a chemical fiber silk production water line technology on-line monitoring analytic system which characterized in that includes:
the oxidation information acquisition module is used for dividing each oxidation acquisition time point in the oxidation process in the oxidation furnace in the specified carbon fiber production line according to a preset time interval, further acquiring the temperature and the oxygen concentration of the oxidation furnace at each oxidation acquisition time point in the specified carbon fiber production line, and acquiring the oxidation time in the oxidation furnace and the image of the oxidized raw material in the oxidation furnace;
the oxidation information analysis and confirmation module is used for analyzing the oxidation process corresponding to the specified carbon fiber production line, analyzing the color of the oxidized raw material corresponding to the specified carbon fiber production line and further confirming the qualified oxidation quality condition corresponding to the specified carbon fiber production line;
the carbonization information acquisition module is used for dividing carbonization acquisition time points in a carbonization process in the carbonization furnace in the specified carbon fiber production line according to preset time intervals, further acquiring the temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration of the carbonization furnace in the specified carbon fiber production line at each carbonization acquisition time point, and acquiring the weight and the roughness of raw materials before and after carbonization in the carbonization furnace in the specified carbon fiber production line;
the carbonization information analysis and confirmation module is used for analyzing the carbonization process corresponding to the specified carbon fiber production line, analyzing the quality of carbonized raw materials corresponding to the specified carbon fiber production line and further confirming the qualified condition of the carbonization quality corresponding to the specified carbon fiber production line;
the surface treatment information acquisition module is used for acquiring treatment information in surface treatment in a specified carbon fiber production line and apparent information of the carbon fiber after the surface treatment, wherein the treatment information comprises the pH value of electrolyte, the concentration of the electrolyte and the current, and the apparent information of the carbon fiber comprises roughness, the size of each groove and the distance between every two adjacent grooves;
the surface treatment analysis and confirmation module is used for analyzing the treatment information corresponding to the surface treatment in the specified carbon fiber production line, analyzing the quality of the carbon fiber corresponding to the specified carbon fiber production line and further confirming the qualified condition of the surface treatment result corresponding to the specified carbon fiber production line;
the early warning terminal is used for respectively giving early warning prompts when the oxidation quality, the carbonization quality or the surface treatment result corresponding to the specified carbon fiber production line is unqualified;
the oxidation process corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows:
substituting the oxidation time in an oxidation furnace in a specified carbon fiber production line, the temperature corresponding to each oxidation acquisition time point and the oxygen concentration into a calculation formula
In the step (a), the first oxidation quality meeting index which corresponds to the appointed carbon fiber production line is obtained>
Wherein Y represents the oxidation time in an oxidation oven in a given carbon fiber production line, and>
、/>
respectively represents the temperature and the oxygen concentration of an oxidation oven in a specified carbon fiber production line corresponding to the t oxidation acquisition time point, and the oxygen concentration of the oxidation oven>
、/>
Respectively corresponding to a reference temperature and a reference oxygen concentration at the t-th oxidation collection time point of an oxidation furnace in a set specified carbon fiber production line, and then selecting the oxygen concentration in the oxidation furnace>
In order to set the reference oxidation time, device for selecting or keeping>
、/>
、/>
The weight factors are respectively corresponding to the set oxidation time, the temperature of the oxidation furnace and the oxygen concentration in the oxidation furnace, t represents the number corresponding to each oxidation acquisition time point,
；
the method is characterized in that the color of the oxidized raw material corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows:
dividing the image of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line into sub-areas according to a preset size, and obtaining the hue, saturation and brightness corresponding to the image of each sub-area of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line, thereby calculating to obtain a color coincidence index corresponding to the image of each sub-area of the oxidized raw material in the oxidation furnace in the specified carbon fiber production line;
according to the formula
Obtaining the oxidation color of the raw material corresponding to the appointed carbon fiber production line which accords with the index->
Wherein is present>
、/>
Respectively indicates that the colors corresponding to the (i + 1) th and the (i) th sub-area images of the raw material oxidized in the oxidation furnace in the appointed carbon fiber production line accord with the index value and are combined with the index value>
In order to set an allowable color match exponent difference>
I represents the number corresponding to each subarea image of the raw material oxidized in the oxidation furnace in the appointed carbon fiber production line, and/or the number corresponding to each subarea image of the raw material oxidized in the oxidation furnace>
；
The carbonization process corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows:
will specify the carbon fiberSubstituting the temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration of the carbonization furnace in each carbonization acquisition time point into a calculation formula in the production line
In the step (a), the first carbonization quality meeting the index->
Wherein->
、/>
、/>
、/>
Respectively indicates the condition that the carbonization furnace is at the fifth position or the fifth position in the designated carbon fiber production line>
The temperature, the nitrogen concentration, the hydrogen concentration and the oxygen concentration corresponding to the carbonization acquisition time point,
、/>
、/>
、/>
respectively for the set carbonization oven at the fifth->
Reference temperature corresponding to the carbonization acquisition time point,Reference nitrogen concentration, reference hydrogen concentration, reference oxygen concentration>
、/>
、/>
、/>
Respectively corresponding weight factors of the set carbonization furnace temperature, the set carbonization furnace nitrogen concentration, the set carbonization furnace hydrogen concentration and the set carbonization furnace oxygen concentration>
Denotes the number corresponding to each carbonized collection time point,. Sup.>
E is a natural constant;
the quality of the carbonized raw material corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows:
substituting the weight and the roughness of the raw materials before and after carbonization in a carbonization furnace in a specified carbon fiber production line into a calculation formula
In the method, the carbonization quality conformity index of the raw material corresponding to the specified carbon fiber production line is obtained
Wherein is present>
、/>
Respectively represent the carbon in the carbonization furnace in the production line of the specified carbon fiberBased on the weight of the raw material before and after carbonization>
、/>
Respectively represents the corresponding roughness of the raw material before and after carbonization in a carbonization furnace in a specified carbon fiber production line, and then is used for judging whether the raw material is carbonized or not>
、/>
Respectively set weight reduction ratio and roughness reduction ratio after the carbonization of the raw material>
、/>
Respectively setting weight factors corresponding to the weight and the roughness of the raw material;
the processing information in the surface processing corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows:
substituting the pH value, electrolyte concentration and current of the electrolyte in the surface treatment of the specified carbon fiber production line into a calculation formula
In the method, a first surface treatment result corresponding to a specified carbon fiber production line is obtained and accords with an index->
Wherein is present>
、/>
、/>
Respectively specifying the pH value, electrolyte concentration and current of electrolyte in surface treatment in the carbon fiber production line>
、/>
、/>
Respectively set pH value of reference electrolyte, reference electrolyte concentration and reference current>
、/>
、/>
Respectively set pH value difference, permissible electrolyte concentration difference and permissible current difference of permissible electrolyte>
、/>
、/>
Weighting factors corresponding to the set pH value, electrolyte concentration and current of the electrolyte respectively; />
The quality of the carbon fiber corresponding to the specified carbon fiber production line is analyzed, and the specific analysis process is as follows:
substituting the roughness corresponding to the carbon fiber after surface treatment in the specified carbon fiber production line, the size of each groove and the distance between every two adjacent grooves into a calculation formula
In the step (a), the carbon fiber quality coincidence index which corresponds to the appointed carbon fiber production line is obtained>
Wherein is present>
Represents the corresponding roughness of the carbon fiber after surface treatment in the designated carbon fiber production line, and represents the corresponding roughness of the treated carbon fiber>
Represents the corresponding size of the jth groove of the carbon fiber after surface treatment in the appointed carbon fiber production line, and is/is>
、/>
Respectively represents the space between the j +1 th groove and the j-1 th groove of the carbon fiber after surface treatment in the appointed carbon fiber production line, the space between the j-1 th groove and the j-1 th groove, and the judgment result shows whether the carbon fiber is subjected to surface treatment in the appointed carbon fiber production line or not>
、/>
Is respectively a set standard groove size, a standard adjacent groove spacing>
、/>
、/>
Weight factors corresponding to the set roughness of the carbon fiber, the size of the groove and the distance between the groovesJ denotes the number corresponding to each groove, is>
；
The method comprises the following steps of confirming that a surface treatment result corresponding to a specified carbon fiber production line is qualified, and specifically confirming the following process:
the first surface treatment result corresponding to the appointed carbon fiber production line conforms to the index
The quality of the carbon fiber meets the index->
Substituted into the calculation formula->
In the method, the obtained surface treatment result corresponding to the specified carbon fiber production line conforms to the index
Wherein->
、/>
Respectively corresponding weighting factors of the set first surface treatment result coincidence index and the carbon fiber quality coincidence index, wherein e is a natural constant;
and comparing the surface treatment production quality conformity index corresponding to the specified carbon fiber production line with a set standard surface treatment production quality conformity index, if the surface treatment production quality conformity index corresponding to the specified carbon fiber production line is greater than or equal to the standard surface treatment production quality conformity index, judging that the surface treatment result corresponding to the specified carbon fiber production line is qualified, otherwise, judging that the surface treatment result corresponding to the specified carbon fiber production line is unqualified.
2. The on-line monitoring and analyzing system of the chemical fiber yarn production line process as claimed in claim 1, wherein: and confirming the qualified oxidation quality condition corresponding to the specified carbon fiber production line, wherein the specific confirmation process comprises the following steps:
the first oxidation quality corresponding to the appointed carbon fiber production line is matched with an index
And the oxidation color of the raw material meets the index->
Substituted into the calculation formula->
In the step (a), the oxidation quality corresponding to the appointed carbon fiber production line is obtained and accords with the index->
Wherein->
、/>
The weight factors are respectively corresponding to the set first oxidation quality coincidence index and the raw material oxidation color coincidence index;
and comparing the oxidation quality conformity index corresponding to the specified carbon fiber production line with a set standard oxidation quality conformity index, if the oxidation quality conformity index corresponding to the specified carbon fiber production line is greater than or equal to the standard oxidation quality conformity index, judging that the oxidation quality corresponding to the specified carbon fiber production line is qualified, otherwise, judging that the oxidation quality corresponding to the specified carbon fiber production line is unqualified.
3. The on-line monitoring and analyzing system for the chemical fiber yarn production line process as claimed in claim 1, wherein: and confirming the qualified carbonization quality condition corresponding to the specified carbon fiber production line, wherein the specific confirmation process comprises the following steps:
the first carbonization quality corresponding to the appointed carbon fiber production line is in accordance with the index
And the carbonization quality of the raw material meets the index->
Substituted into the calculation formula->
In the step (a), the carbonization quality corresponding to the designated carbon fiber production line is obtained and meets the index->
In which>
、/>
Respectively corresponding weight factors of the set first carbonization quality coincidence index and the raw material carbonization quality coincidence index, wherein e is a natural constant;
and comparing the carbonization quality conformity index corresponding to the specified carbon fiber production line with the set standard carbonization quality conformity index, if the carbonization quality conformity index corresponding to the specified carbon fiber production line is greater than or equal to the standard carbonization quality conformity index, judging that the carbonization quality corresponding to the specified carbon fiber production line is qualified, otherwise, judging that the carbonization quality corresponding to the specified carbon fiber production line is unqualified.
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