SU514925A1 - Method for automatic control of the alkaline cellulose pressing process - Google Patents
Method for automatic control of the alkaline cellulose pressing processInfo
- Publication number
- SU514925A1 SU514925A1 SU2022582A SU2022582A SU514925A1 SU 514925 A1 SU514925 A1 SU 514925A1 SU 2022582 A SU2022582 A SU 2022582A SU 2022582 A SU2022582 A SU 2022582A SU 514925 A1 SU514925 A1 SU 514925A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- alkaline cellulose
- automatic control
- cellulose
- pressing process
- alkaline
- Prior art date
Links
Landscapes
- Paper (AREA)
Description
1one
Изобретение относитс к способам автоматического управлени составом отжимаемых продуктов и может быть использовано в химической , целлюлозно-бумажной и других отрасл х промып1ленности, где необходимо управл ть соотношением компонентов в отжимаемых продуктах.The invention relates to methods for automatically controlling the composition of pressed products and can be used in chemical, pulp and paper and other industrial sectors where it is necessary to control the ratio of components in pressed products.
Известен способ автоматического регулировани степени отжима щелочной целлюлозы путем измерени расхода и модул пульпы с последующим воздействием на число оборотов отжимных валов.There is a known method for automatically controlling the degree of spinning of alkali cellulose by measuring the flow rate and pulp module, with subsequent impact on the number of revolutions of the pressing rolls.
Этот способ позвол ет устранить вли ние изменений качества исходной целлюлозы, модул пульпы, закупоривани прорезей отжимных валов на степень отжима щелочной целлюлозы , но требует ручной корректировки числа оборотов отжимных валов при изменении производительности установки и возмущени х со стороны привода отжимных валов (дрейфе числа их оборотов), на основе данных лабораторного анализа состава щелочной целлюлозы.This method eliminates the effect of changes in the quality of the original pulp, pulp module, blocking the squeeze rolls on the degree of spinning of alkaline cellulose, but requires manual adjustment of the number of revolutions of the squeeze shafts when the plant performance changes and disturbances from the drive side of the squeezing shafts ), based on the data of laboratory analysis of the composition of alkaline cellulose.
Однако известный способ не обеспечивает высокого качества щелочной целлюлозы и может привести к ухудщению фильтруемости вискозы и значительным экономическим потер м .However, the known method does not provide high quality alkali cellulose and can lead to a deterioration in the filterability of viscose and significant economic losses.
С целью повышени качества щелочной целлюлозы число оборотов отл имных валов корректируют в зависимости от весового расхода отжатой щелочной целлюлозы. На чертеже показана ирпнципиальна схема автоматического управленн процессом отжима щелочной целлюлозы.In order to improve the quality of alkali cellulose, the number of revolutions of the empty shafts is adjusted depending on the weight consumption of the pressed alkaline cellulose. The drawing shows an operational diagram of an automatic control process for the extraction of alkaline cellulose.
Система регулировани состоит из контураThe control system consists of a contour
регулировани весового расхода щелочной целлюлозы и узла формировани задани регул тора расхода щелочной целлюлозы. Контур регулировани весового расхода щелочной целлюлозы содержит датчик 1 весовогоadjusting the alkali cellulose weight consumption and the alkaline cellulose consumption regulator setting task setting unit. Alkali cellulose weight control loop contains sensor 1 weight
расхода щелочной целлюлозы, регул тор 2 и исполнительный механизм 3. Узел формировани задани регул тора весового расхода щелочной целлюлозы состоит из датчика 4 модул пульпы щелочной целлюлозы, датчика 5 расхода пульпы и вычислительного блока 6. Выходные сигналы датчиков модул 4 и расхода пульпы 5 подаютс на вход вычислительного блока 6, в котором на основе уравнени материального баланса формируетс сигнал задани регул тору 2 весового расхода отжатой щелочной целлюлозы, соответствующий заданному значению степени отжима щелочной целлюлозы.alkaline cellulose consumption, regulator 2 and actuator 3. The alkaline cellulose weight regulator setting task assembly consists of sensor 4 of alkaline cellulose pulp module 4, pulp consumption sensor 5 and computing unit 6. The output signals of module 4 sensors and pulp consumption 5 are fed to the input of the computing unit 6, in which, based on the material balance equation, a signal is generated to set the regulator 2 to the weight consumption of the pressed alkaline cellulose corresponding to the specified value of the degree of spin alkaline pulp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2022582A SU514925A1 (en) | 1974-05-08 | 1974-05-08 | Method for automatic control of the alkaline cellulose pressing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2022582A SU514925A1 (en) | 1974-05-08 | 1974-05-08 | Method for automatic control of the alkaline cellulose pressing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU514925A1 true SU514925A1 (en) | 1976-05-25 |
Family
ID=20584023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2022582A SU514925A1 (en) | 1974-05-08 | 1974-05-08 | Method for automatic control of the alkaline cellulose pressing process |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU514925A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018052361A1 (en) * | 2016-09-15 | 2018-03-22 | Valmet Ab | An apparatus for washing and dewatering pulp, a system for controlling such an apparatus, and a method for processing pulp in such an apparatus |
-
1974
- 1974-05-08 SU SU2022582A patent/SU514925A1/en active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018052361A1 (en) * | 2016-09-15 | 2018-03-22 | Valmet Ab | An apparatus for washing and dewatering pulp, a system for controlling such an apparatus, and a method for processing pulp in such an apparatus |
| CN109689968A (en) * | 2016-09-15 | 2019-04-26 | 维美德公司 | For washing and the equipment of dewa-tered pulp, the system for controlling this equipment and the method for handling paper pulp in such a device |
| RU2725035C1 (en) * | 2016-09-15 | 2020-06-29 | Вальмет Аб | Device for washing and dehydration of fibrous mass, control system of such apparatus and method of processing fibrous mass in such apparatus |
| CN109689968B (en) * | 2016-09-15 | 2022-03-11 | 维美德公司 | Apparatus for washing and dewatering pulp, system for controlling such an apparatus and method for treating pulp in such an apparatus |
| US11702795B2 (en) | 2016-09-15 | 2023-07-18 | Valmet Ab | Apparatus for washing and dewatering pulp, a system for controlling such an apparatus, and a method for processing pulp in such an apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4473924A (en) | Means for controlling fiber-drawing apparatus | |
| US3040807A (en) | Moisture balance correction system | |
| KR930002569A (en) | How to control profit improvement of woven factory | |
| ES479967A1 (en) | Method and apparatus for regulating out variations in the sliver weight on devices for processing fibre slivers | |
| JPS63105125A (en) | Apparatus for adjusting draft ratio of sliver in fiber machine | |
| SU514925A1 (en) | Method for automatic control of the alkaline cellulose pressing process | |
| GB922689A (en) | Improved automatic controller for continuous processes | |
| US5011090A (en) | Method for controlling a chip refiner | |
| SE9703758D0 (en) | Method and procedure for process control in the manufacture of paper, pulp or board | |
| SU742896A1 (en) | Automatic apparatus for continuous producing of alkaline cellulose | |
| SU874823A1 (en) | Device for stabilizing the thickness of mica-plastic material at the outlet of manufacturing machine | |
| SU770548A1 (en) | Apparatus for automatic control of flotation process | |
| JPS5932591B2 (en) | Refiner control device | |
| SU442459A1 (en) | Automatic control system | |
| SU797713A1 (en) | Device for regulating product quality indicator | |
| SU785618A1 (en) | Method of automatic control of loose material drying process in drum dryer | |
| SU371291A1 (en) | Method of control of wooden mass sorting quality | |
| SU405063A1 (en) | DEVICE OF CARTON MOTION VELOCITY CONTROL CONTROL IN A KITTLE BATH | |
| SU772871A1 (en) | Apparatus for controlling the operation of asbestos-concrete moulding machine | |
| SU608806A1 (en) | Device for optimum control of viscose fiber formation process | |
| SU529446A1 (en) | Device for automatic control of technological parameters of filtration processes | |
| SU456744A1 (en) | Regulator of concentration of the processing solution in the process of forming viscose materials | |
| SU571301A1 (en) | Drum mill filling control device | |
| SU1245531A1 (en) | Device for adjusting inflexibility of material | |
| SU492863A1 (en) | Device for adjusting the moisture of the paper web |