SU675110A1 - Method of automatic control and regulation of the process of intermittent boiling of mineral raw material - Google Patents
Method of automatic control and regulation of the process of intermittent boiling of mineral raw materialInfo
- Publication number
- SU675110A1 SU675110A1 SU782589185A SU2589185A SU675110A1 SU 675110 A1 SU675110 A1 SU 675110A1 SU 782589185 A SU782589185 A SU 782589185A SU 2589185 A SU2589185 A SU 2589185A SU 675110 A1 SU675110 A1 SU 675110A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- regulation
- raw material
- automatic control
- mineral raw
- intermittent boiling
- Prior art date
Links
Landscapes
- Paper (AREA)
Description
1one
Изобретение относитс к области автоматического контрол и регулировани технологических процессов и может быть использовано в целлюлозно-бумажной промышленности .The invention relates to the field of automatic control and regulation of technological processes and can be used in the pulp and paper industry.
Известен способ автоматического контрол и регулировани процессов варки растительного сырь путем измерени электрической проводимости варочного раствора 1.There is a method of automatically controlling and regulating the cooking processes of plant raw materials by measuring the electrical conductivity of the cooking solution 1.
Недостатком этого способа вл етс низка точность контрол и регулировани .The disadvantage of this method is the low accuracy of control and regulation.
Целью изобретени вл етс повышение точности контрол и регулировани .The aim of the invention is to improve the accuracy of control and regulation.
Это достигаетс тем, что стабилизируют удельную проводимость исходного варочного раствора изменением расхода белого щелока, затем определ ют отклонение измеренного значени проводимости варочного раствора от заданного значени и регулируют проводимость варочного раствора в процессе варки по отклонению от заданного значени изменением подачи белого щелока в линию рециркул ции и/или изменением подачи греющего агента в теплообменник .This is achieved by stabilizing the conductivity of the original cooking solution by varying the flow rate of white liquor, then determining the deviation of the measured conductivity value of the cooking solution from the specified value and adjusting the conductivity of the cooking solution during the cooking process by the deviation from the set value by changing the supply of white liquor to the recirculation line and / or a change in the supply of the heating agent to the heat exchanger.
На чертеже приведена структурна схема устройства, реализующего данный способ .The drawing shows a block diagram of the device that implements this method.
Варочный раствор из котла 1 поступает через циркул ционные трубопроводы в кожухотрубчатый теплообменник 2, где подогреваетс паром и оттуда снова возвращаетс в котел.The cooking liquor from boiler 1 flows through circulation piping into a shell-and-tube heat exchanger 2, where it is heated with steam and from there returns to the boiler.
В линии циркул ции до теплообменника установлен датчик 3 удельной проводимости , св занный с измерительной схемой показывающего , самопишущего и регулирующего прибора 4. Заданное значение удельной проводимости варочного раствора выдаетс функциональным блоком 5.A specific conductivity sensor 3 is installed in the circulation line to the heat exchanger associated with the measuring circuit of the indicating, recording recorder and regulating device 4. The specified conductivity value of the cooking liquor is output by the functional unit 5.
После загрузки котла растительным сырьем в него заливают требуемый по режиму объем варочного раствора, удельна проводимость которого контролируетс прибором 4. При достижении величиной удельной проводимости заданного значени , контролируемого функциональным блоком 5, выдаетс управл ющее воздействие по каналу прекращени подачи варочного раствора в аппарат и сигнал о подаче пара в теплообменник .After the boiler is loaded with plant raw material, the required volume of cooking solution is poured into it, the conductivity of which is controlled by the device 4. When the specific conductivity reaches a predetermined value controlled by the functional unit 5, a control action is output through the channel to stop the supply of cooking solution to the appliance and the signal steam supply to the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782589185A SU675110A1 (en) | 1978-03-13 | 1978-03-13 | Method of automatic control and regulation of the process of intermittent boiling of mineral raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782589185A SU675110A1 (en) | 1978-03-13 | 1978-03-13 | Method of automatic control and regulation of the process of intermittent boiling of mineral raw material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU675110A1 true SU675110A1 (en) | 1979-07-25 |
Family
ID=20752996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782589185A SU675110A1 (en) | 1978-03-13 | 1978-03-13 | Method of automatic control and regulation of the process of intermittent boiling of mineral raw material |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU675110A1 (en) |
-
1978
- 1978-03-13 SU SU782589185A patent/SU675110A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE29790T1 (en) | METHOD AND DEVICE FOR CONTROLLING THE GARBZW. COOKING PROCESS WITH A PRESSURE STEAM COOKER. | |
| DE3316799C2 (en) | Device for controlling the cooking or cooking process in a steam pressure cooker | |
| SE8704817D0 (en) | DEVICE TO PAVER COOKING OR COOKING TIME AT A COOKER | |
| SU675110A1 (en) | Method of automatic control and regulation of the process of intermittent boiling of mineral raw material | |
| US4829680A (en) | Method of heat treatment of a length of material in a tentering machine | |
| GB1256893A (en) | ||
| JPS5580119A (en) | Temperature control method | |
| DE59105982D1 (en) | Process control system for controlling the production of pulp in a batch cooker. | |
| JPS5488134A (en) | Heat fixing device | |
| ATE25157T1 (en) | PROCEDURE FOR ADJUSTING THE PRE- AND RETURN TEMPERATURE OF A HOT WATER HEATING SYSTEM. | |
| GB1091589A (en) | Method and apparatus for the distillation of spirit | |
| SU672490A1 (en) | Method and apparatus for control of thermal digesting of cellulose in periodic-action boilers | |
| SU959047A1 (en) | Cellulose boiling control method | |
| JPS57127741A (en) | Controlling method for water heater | |
| JPS54108180A (en) | Temperature and humidity controller | |
| SU1142713A1 (en) | Method of automatic control of drying process | |
| SU648805A1 (en) | Device for automatic regulation of wood chamber drying conditions | |
| SU883219A1 (en) | Method of automatic control of temperature rise in sulphate pulp digester | |
| SU1071673A1 (en) | System of automatic control of pulp digestion temperature in periodic-action digesters | |
| SU1341625A1 (en) | Method of controlling cellulose digest process in batch-operated reactor | |
| JPS5582225A (en) | Water boiler | |
| SU664680A1 (en) | Exothermal reaction control method | |
| SU913345A1 (en) | Method of automatic control of nutritive media sterilization process | |
| JPS57187552A (en) | Controller for water heater | |
| SU471299A1 (en) | Method of controlling the process of neutralizing phosphoric acid |