CN102393692B - Impregnation automatic control system in production of short fiber stock solution viscose - Google Patents
Impregnation automatic control system in production of short fiber stock solution viscose Download PDFInfo
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- CN102393692B CN102393692B CN201110293907.8A CN201110293907A CN102393692B CN 102393692 B CN102393692 B CN 102393692B CN 201110293907 A CN201110293907 A CN 201110293907A CN 102393692 B CN102393692 B CN 102393692B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention provides an impregnation automatic control system in production of short fiber stock solution viscose. The conventional automatic control system is improved and optimized, and a redundant process control system is constructed by redundant process control software, so that the impregnation automatic control system in the production of the short fiber stock solution viscose is established. The concentration of pulp is controlled by controlling the feeding speed and addition amount of the pulp and the addition amount of impregnation alkali; a feeding system comprises a pulp feeder and an impregnation alkali feeding pipe which are provided with devices for controlling the feeding amount of the pulp and the impregnation alkali; and the concentration of the pulp has been adjusted during feeding, so that the influence of other interference factors in the subsequent impregnation process is greatly reduced.
Description
Technical field
The present invention relates to a kind of DCS automation control system, more particularly, the present invention relates to the impregnation automatic control system in a kind of short fiber stock solution viscose production.Belong to regenerated fiber field.
Background technology
Automatically control (automatic control) and refer in the situation that nobody participates in directly, utilize additional equipment or device, certain duty of machine, equipment or production run or parameter are automatically moved according to predetermined rule.Automatically control relative manual control concept, refer in the situation that no one participates in, utilize control device to make controlled device or process automatically by predetermined rule operation.
The research of automatic control technology is conducive to the mankind be freed from complicated, dangerous, loaded down with trivial details work situation and greatly improve control efficiency.Automatically controlling is the Yi Ge branch of engineering science.It relates to the automatic impact on dynamic system that utilizes feedback principle, so that output valve approaches the value that we want.From the angle of method, it be take the Systems Theory of mathematics and is basis.We are called automatic control today is the cybernatic Yi Ge branch producing in the twentieth century middle period.
Viscose glue preparation is one of operation of most important in whole production process of viscose fiber, most critical, it is that the pulp of solid is generated to alkali cellulose through dipping, then through squeezing, pulverizing and experienced operation, be transported in xanthating machine and react with CS2 and generate cellulose yellow acid fat, again cellulose xanthate is dissolved in and in alkali lye, obtains liquid viscose glue, viscose glue is eliminated impurity and bubble wherein by filtration, deaeration operation, and by maturation technique, viscosity and the degree of ripeness of adjusting viscose glue, final production goes out to meet the stock solution viscose of post-order process performance requirement.
Although there is pair automatic control system of the whole technological process of staple fibre viscose glue stoste production in prior art, but specific aim is not strong, still to carry out complicated debugging and manual operation, particularly to the control in dip process, prior art can not guarantee the accuracy requirement of its allotment, slurry congee concentration be can not accurately control, the carrying out of subsequent technique and the quality of final product had a strong impact on.
Summary of the invention
The present invention is intended to solve the problem of the automatic control of the whole technological process that prior art middle short fiber viscose glue stoste produces, impregnation automatic control system in a kind of short fiber stock solution viscose production is provided, guarantee the precision of impregnation technology parameter, accurately control slurry congee concentration, reducing fault and accident occurs, farthest reduce manual operation, the convenient real-time monitoring to whole technique.
In order to realize foregoing invention object, concrete technical scheme of the present invention is:
Impregnation automatic control system in short fiber stock solution viscose production, comprise that dipping alkali is for alkali pipe, hello dregs of rice machine and treating tank, it is characterized in that: also comprise for receiving the also host computer active station of analytic signal, described host computer active station adopts redundancy process control software to build redundancy Process Control System, sets up the impregnation automatic control system in short fiber stock solution viscose production; The dregs of rice machine of feeding of the present invention comprises the dynamo-electric machine of hello the dregs of rice and pulp meausring apparatus, feed on the dynamo-electric machine of the dregs of rice and be provided for controlling rotating speed, to control frequency converter and the frequency converter running frequency PID controller of pulp rate of feeding, be provided with on pulp meausring apparatus for controlling the weighing sensor of pulp addition; Described dipping alkali is for the flowrate control valve that is provided with flow PID controller and is attached thereto on alkali pipe, for controlling dipping alkali addition; More than by controlling pulp rate of feeding, pulp addition and dipping alkali addition, control slurry congee concentration.
Impregnation automatic control system in short fiber stock solution viscose production of the present invention is aided with network structure, message alarm logging and the Process History curve at multioperation station, guarantees that whole control procedure is real-time, effective, can review.
It is control core that host computer active station of the present invention adopts Siemens S7-400 H CPU.
Redundancy process control software of the present invention is PCS7 software.
The present invention also comprises auxiliary dipping vat and the pressure balance barrel being connected with treating tank, is provided with slurry congee pump between described treating tank, auxiliary dipping vat and pressure balance barrel.
Above-mentioned treating tank and auxiliary dipping vat are all provided with liquid level sensor.
Above-mentioned slurry congee pump is provided with for controlling frequency converter and the frequency converter running frequency PID controller of rotating speed.
The percentage by weight that slurry congee concentration of the present invention is alkalinity is 3-10%.
The useful technique effect that the present invention arrives:
1, automatic control system employing Siemens S7-400 H CPU of the present invention is control core, use PCS7 software to build redundancy Process Control System and set up impregnation alkali blending automatic control system, described system is aided with network structure, message alarm logging and the Process History curve at multioperation station, guarantees that whole control procedure is real-time, effective, can review;
2, build redundancy Process Control System, saved communication time, guaranteed that the complete while of exchanges data also reduced traffic, guarantee also can not affect the operation of whole control system when breaking down;
3, the key of dipping automatic control process is to guarantee with regard to controlling slurry congee concentration, to reach required value when charging, feed system of the present invention, comprise feeding dregs of rice machine and flooding alkali feed pipe and be all provided with the device of controlling its inlet amount, the concentration that has just regulated slurry congee in charging, has reduced the impact of other disturbing factor in follow-up dip process greatly;
4, the present invention is in the link easily slurry congee concentration being exerted an influence, as: treating tank liquid level, slurry congee revolution speed etc., be provided with controller, in dip process, monitor in real time, guarantee that slurry congee concentration can not be subject to the too large impact of these factors;
5, the present invention is provided with auxiliary dipping vat, makes dipping process reaction more complete.
Embodiment
embodiment 1
Impregnation automatic control system in short fiber stock solution viscose production, comprise that dipping alkali is for alkali pipe, hello dregs of rice machine and treating tank, it is characterized in that: also comprise for receiving the also host computer active station of analytic signal, described host computer active station adopts redundancy process control software to build redundancy Process Control System, sets up the impregnation automatic control system in short fiber stock solution viscose production; The dregs of rice machine of feeding of the present invention comprises the dynamo-electric machine of hello the dregs of rice and pulp meausring apparatus, feed on the dynamo-electric machine of the dregs of rice and be provided for controlling rotating speed, to control frequency converter and the frequency converter running frequency PID controller of pulp rate of feeding, be provided with on pulp meausring apparatus for controlling the weighing sensor of pulp addition; Described dipping alkali is for the flowrate control valve that is provided with flow PID controller and is attached thereto on alkali pipe, for controlling dipping alkali addition; By controlling pulp rate of feeding, pulp addition and dipping alkali addition control slurry congee concentration, be 3% above.
Impregnation automatic control system in short fiber stock solution viscose production of the present invention is aided with network structure, message alarm logging and the Process History curve at multioperation station, guarantees that whole control procedure is real-time, effective, can review.
It is control core that host computer active station of the present invention adopts Siemens S7-400 H CPU.
Redundancy process control software of the present invention is PCS7 software.
The present invention also comprises auxiliary dipping vat and the pressure balance barrel being connected with treating tank, is provided with slurry congee pump between described treating tank, auxiliary dipping vat and pressure balance barrel.
Above-mentioned treating tank and auxiliary dipping vat are all provided with liquid level sensor.
Above-mentioned slurry congee pump is provided with for controlling frequency converter and the frequency converter running frequency PID controller of rotating speed.
embodiment 2
Impregnation automatic control system in short fiber stock solution viscose production, comprise that dipping alkali is for alkali pipe, hello dregs of rice machine and treating tank, it is characterized in that: also comprise for receiving the also host computer active station of analytic signal, described host computer active station adopts redundancy process control software to build redundancy Process Control System, sets up the impregnation automatic control system in short fiber stock solution viscose production; The dregs of rice machine of feeding of the present invention comprises the dynamo-electric machine of hello the dregs of rice and pulp meausring apparatus, feed on the dynamo-electric machine of the dregs of rice and be provided for controlling rotating speed, to control frequency converter and the frequency converter running frequency PID controller of pulp rate of feeding, be provided with on pulp meausring apparatus for controlling the weighing sensor of pulp addition; Described dipping alkali is for the flowrate control valve that is provided with flow PID controller and is attached thereto on alkali pipe, for controlling dipping alkali addition; By controlling pulp rate of feeding, pulp addition and dipping alkali addition control slurry congee concentration, be 10% above.
Impregnation automatic control system in short fiber stock solution viscose production of the present invention is aided with network structure, message alarm logging and the Process History curve at multioperation station, guarantees that whole control procedure is real-time, effective, can review.
It is control core that host computer active station of the present invention adopts Siemens S7-400 H CPU.
Redundancy process control software of the present invention is PCS7 software.
The present invention also comprises auxiliary dipping vat and the pressure balance barrel being connected with treating tank, is provided with slurry congee pump between described treating tank, auxiliary dipping vat and pressure balance barrel.
Above-mentioned treating tank and auxiliary dipping vat are all provided with liquid level sensor.
Above-mentioned slurry congee pump is provided with for controlling frequency converter and the frequency converter running frequency PID controller of rotating speed.
embodiment 3
Impregnation automatic control system in short fiber stock solution viscose production, comprise that dipping alkali is for alkali pipe, hello dregs of rice machine and treating tank, it is characterized in that: also comprise for receiving the also host computer active station of analytic signal, described host computer active station adopts redundancy process control software to build redundancy Process Control System, sets up the impregnation automatic control system in short fiber stock solution viscose production; The dregs of rice machine of feeding of the present invention comprises the dynamo-electric machine of hello the dregs of rice and pulp meausring apparatus, feed on the dynamo-electric machine of the dregs of rice and be provided for controlling rotating speed, to control frequency converter and the frequency converter running frequency PID controller of pulp rate of feeding, be provided with on pulp meausring apparatus for controlling the weighing sensor of pulp addition; Described dipping alkali is for the flowrate control valve that is provided with flow PID controller and is attached thereto on alkali pipe, for controlling dipping alkali addition; By controlling the percentage by weight that pulp rate of feeding, pulp addition and dipping alkali addition control slurry congee concentration are alkalinity, be 6.5% above.
Impregnation automatic control system in short fiber stock solution viscose production of the present invention is aided with network structure, message alarm logging and the Process History curve at multioperation station, guarantees that whole control procedure is real-time, effective, can review.
It is control core that host computer active station of the present invention adopts Siemens S7-400 H CPU.
Redundancy process control software of the present invention is PCS7 software.
The present invention also comprises auxiliary dipping vat and the pressure balance barrel being connected with treating tank, is provided with slurry congee pump between described treating tank, auxiliary dipping vat and pressure balance barrel.
Above-mentioned treating tank and auxiliary dipping vat are all provided with liquid level sensor.
Above-mentioned slurry congee pump is provided with for controlling frequency converter and the frequency converter running frequency PID controller of rotating speed.
embodiment 4
Impregnation automatic control system in short fiber stock solution viscose production, comprise that dipping alkali is for alkali pipe, hello dregs of rice machine and treating tank, it is characterized in that: also comprise for receiving the also host computer active station of analytic signal, described host computer active station adopts redundancy process control software to build redundancy Process Control System, sets up the impregnation automatic control system in short fiber stock solution viscose production; The dregs of rice machine of feeding of the present invention comprises the dynamo-electric machine of hello the dregs of rice and pulp meausring apparatus, feed on the dynamo-electric machine of the dregs of rice and be provided for controlling rotating speed, to control frequency converter and the frequency converter running frequency PID controller of pulp rate of feeding, be provided with on pulp meausring apparatus for controlling the weighing sensor of pulp addition; Described dipping alkali is for the flowrate control valve that is provided with flow PID controller and is attached thereto on alkali pipe, for controlling dipping alkali addition; By controlling the percentage by weight that pulp rate of feeding, pulp addition and dipping alkali addition control slurry congee concentration are alkalinity, be 9% above.
Impregnation automatic control system in short fiber stock solution viscose production of the present invention is aided with network structure, message alarm logging and the Process History curve at multioperation station, guarantees that whole control procedure is real-time, effective, can review.
It is control core that host computer active station of the present invention adopts Siemens S7-400 H CPU.
Redundancy process control software of the present invention is PCS7 software.
The present invention also comprises auxiliary dipping vat and the pressure balance barrel being connected with treating tank, is provided with slurry congee pump between described treating tank, auxiliary dipping vat and pressure balance barrel.
Above-mentioned treating tank and auxiliary dipping vat are all provided with liquid level sensor.
Above-mentioned slurry congee pump is provided with for controlling frequency converter and the frequency converter running frequency PID controller of rotating speed.
Claims (4)
1. the impregnation automatic control system of short fiber stock solution viscose in producing, comprise that dipping alkali is for alkali pipe, hello dregs of rice machine and treating tank, it is characterized in that: also comprise for receiving the also host computer active station of analytic signal, described host computer active station adopts redundancy process control software to build redundancy Process Control System, sets up the impregnation automatic control system in short fiber stock solution viscose production; The described dregs of rice machine of feeding comprises feeds the dynamo-electric machine of the dregs of rice and pulp meausring apparatus, feed on the dynamo-electric machine of the dregs of rice and be provided for controlling rotating speed, to control frequency converter and the frequency converter running frequency PID controller of pulp rate of feeding, be provided with on pulp meausring apparatus for controlling the weighing sensor of pulp addition; Described dipping alkali is for the flowrate control valve that is provided with flow PID controller and is attached thereto on alkali pipe, for controlling dipping alkali addition; By controlling the percentage by weight that pulp rate of feeding, pulp addition and dipping alkali addition control slurry congee concentration are alkalinity, be 3-10% above; Impregnation automatic control system in described short fiber stock solution viscose production also comprises auxiliary dipping vat and the pressure balance barrel being connected with described treating tank, between described treating tank, auxiliary dipping vat and pressure balance barrel, be provided with slurry congee pump, treating tank and auxiliary dipping vat are all provided with liquid level sensor, and slurry congee pump is provided with for controlling frequency converter and the frequency converter running frequency PID controller of rotating speed.
2. the impregnation automatic control system in short fiber stock solution viscose production according to claim 1, is characterized in that: the impregnation automatic control system in described short fiber stock solution viscose production is aided with network structure, message alarm logging and the Process History curve at multioperation station.
3. the impregnation automatic control system in short fiber stock solution viscose production according to claim 1, is characterized in that: it is control core that described host computer active station adopts Siemens S7-400 H CPU.
4. the impregnation automatic control system in short fiber stock solution viscose production according to claim 1, is characterized in that: described redundancy process control software is PCS7 software.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110293907.8A CN102393692B (en) | 2011-09-27 | 2011-09-27 | Impregnation automatic control system in production of short fiber stock solution viscose |
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| CN201110293907.8A CN102393692B (en) | 2011-09-27 | 2011-09-27 | Impregnation automatic control system in production of short fiber stock solution viscose |
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| CN102393692B true CN102393692B (en) | 2014-04-02 |
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| CN104372705A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Automatic weighing glass-wool pulping system and pulping method thereof |
| CN112663157A (en) * | 2020-12-15 | 2021-04-16 | 江苏金羚纤维素纤维有限公司 | Method and system for controlling concentration of slurry porridge |
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| CN2698787Y (en) * | 2004-02-27 | 2005-05-11 | 宜宾丝丽雅股份有限公司 | Injection unit for injecting agent into viscose |
| CN201236223Y (en) * | 2008-06-10 | 2009-05-13 | 宜宾海丝特纤维有限责任公司 | Alkali fiber production apparatus with plant fiber as raw material |
| CN201473624U (en) * | 2009-07-30 | 2010-05-19 | 中辉人造丝有限公司 | Dipping squeezing system |
| CN201553820U (en) * | 2009-11-20 | 2010-08-18 | 杭州奥通科技有限公司 | Flow line for producing high wet modulus viscose short fibers |
| CN102041565A (en) * | 2010-08-24 | 2011-05-04 | 宜宾海丝特纤维有限责任公司 | Method for manufacturing viscose fibers by ultrasonic polymerization reduction of wood-cotton composite pulp |
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2011
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Patent Citations (5)
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| CN2698787Y (en) * | 2004-02-27 | 2005-05-11 | 宜宾丝丽雅股份有限公司 | Injection unit for injecting agent into viscose |
| CN201236223Y (en) * | 2008-06-10 | 2009-05-13 | 宜宾海丝特纤维有限责任公司 | Alkali fiber production apparatus with plant fiber as raw material |
| CN201473624U (en) * | 2009-07-30 | 2010-05-19 | 中辉人造丝有限公司 | Dipping squeezing system |
| CN201553820U (en) * | 2009-11-20 | 2010-08-18 | 杭州奥通科技有限公司 | Flow line for producing high wet modulus viscose short fibers |
| CN102041565A (en) * | 2010-08-24 | 2011-05-04 | 宜宾海丝特纤维有限责任公司 | Method for manufacturing viscose fibers by ultrasonic polymerization reduction of wood-cotton composite pulp |
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| Title |
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| PCS7系统在粘胶短纤维生产中的应用;李康等;《化工自动化及仪表》;20110131;第38卷(第1期);第121-125页 * |
| 李康等.PCS7系统在粘胶短纤维生产中的应用.《化工自动化及仪表》.2011,第38卷(第1期),第121-125页. |
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| CN102393692A (en) | 2012-03-28 |
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