CN103809569A - Control system for corn germ oil production - Google Patents
Control system for corn germ oil production Download PDFInfo
- Publication number
- CN103809569A CN103809569A CN201410068240.5A CN201410068240A CN103809569A CN 103809569 A CN103809569 A CN 103809569A CN 201410068240 A CN201410068240 A CN 201410068240A CN 103809569 A CN103809569 A CN 103809569A
- Authority
- CN
- China
- Prior art keywords
- control system
- control
- loop
- valve
- maize germ
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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]
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Tea And Coffee (AREA)
Abstract
The invention relates to a control system for corn germ oil production. The control system for corn germ oil production comprises a data acquisition and control system, an electrical control system and a central processor control system. The data acquisition and control system comprises a data processing module and a data output module, and the electrical control system comprises a motor control loop, a valve control loop and a frequency converter loop. The central processor control system comprises two main controllers and two industrial personal computers. The control system with set redundancies achieves automatic control of the whole corn germ oil production, is high in reliability, accurate in control and easy to adjust and saves labor and meanwhile has a data remote transmission function. Production data can be remotely transmitted to a factory production management system through an open data interface, the whole production process can be unmanned, management and control are integrated, the production efficiency is greatly improved, the production cost is reduced, and the control system has good economic benefit.
Description
Technical field
The present invention relates to a kind of control system, be specifically related to a kind of control system of preparing for maize germ oil.
Background technology
Yielding poorly of current domestic maize germ oil, and purity is not high, only has a small amount of refined maize's embryo oil to can be used for eating.This mainly comes from control and the online detection automatically of domestic maize germ oil processing enterprise's shortage, and the experience of the most of dependence of whole production run field worker completes, and production efficiency is low.
Summary of the invention
For the problems referred to above, a kind of control system for the processing of maize germ oil raw material, squeezing, refining purification process that the present invention is based on Programmable Logic Controller principle design.
For addressing the above problem, the technical scheme that the present invention takes is: a kind of control system of preparing for maize germ oil, comprise Data Acquisition and Conversion System (DACS), electric control system and central processing unit control system, described Data Acquisition and Conversion System (DACS) comprises data processing module and data outputting module, the input end of data processing module is connected with maize germ moisture transmitter, vapor pressure transmitter, current of electric transmitter, steam-flow meter, level sensor, position transducer, temperature sensor, wherein, maize germ moisture transmitter is for detection of the water cut of maize germ in softening kettle, vapor pressure transmitter is for measuring the vapor pressure of softening kettle entrance so that vapor pressure is stable in assurance pot, current of electric transmitter is for detection of current of electric, control delivery rate and then guarantee resid amount and water cut, steam-flow meter for detection of the steam flow of workshop main steam range so that gas consumption between scale car, level sensor is scraped the rotating speed of board motor for detection of the material level information in feed bin to control, position transducer is for the positional information of perception valve, temperature sensor is for detection of the temperature of maize germ in softening kettle, electric control system comprises motor control loop, valve control loop and frequency converter loop, for realizing the control to motor, valve and frequency converter frequency, central control system comprises two primary controllers and two industrial computers, and primary controller is connected redundancy industrial computer with the equal redundant configuration of industrial computer and redundancy primary controller by Redundant Ethernet, data processing module output terminal is connected with the primary controller of central processing unit control system through data bus, primary controller output terminal connection data output module input end, and data outputting module output terminal connects electric control system.
Data Acquisition and Conversion System (DACS) is used for gathering the processing of maize germ oil raw material, squeezing, the refining various parameters of purification process, the analog quantity information collecting is converted to numerical information and exports to central processing unit control system, judge that by central processing unit control system backward electric control system sends control signal, the on-the-spot each pump of controlled working and valve.Central processing unit control system also realizes data demonstration, historical data archiving, the parameter input modify feature of data monitoring and control system.Industrial computer disposes Network Interface Unit, can browse data by the Internet, checks report data etc.
Further, described valve control loop comprises Electromagnetic Valve Circuit, motorized valve loop and pneumatic control valve loop, Electromagnetic Valve Circuit is used for according to the switching of the water cut control fresh water (FW) entrance solenoid valve of maize germ in pot, motorized valve loop is used for according to the switching of crude oil pit level information control crude oil entrance motorized valve, and pneumatic control valve loop is used for according to the switching of kettle temperature control steam inlet pneumatic control valve.
Further, described electric control system also comprises redundancy dual power supply switching circuit, for controlling the switching of station service and uninterrupted power source.When any road fault, switching circuit auto-action, guarantees output voltage stabilization, reliable and stable power supply is provided to on-the-spot each loop.
Further, described data processing module input end is also connected with crude oil flowmeter, for measuring the crude oil amount that preliminary when squeezing produces, instructs the motor speed of squeezing section.
Further, described data processing module input end is also connected with absolute oil nephelometer, for measuring oily turbidity, processes workshop section reference is provided for raw material.
Further, described data processing module input end is also connected with liquid level sensor, controls liquid level for detection of crude oil pit level information to control electric motor loop and motorized valve loop.When liquid level is high, open the oil pump of crude oil pond outlet, close the motorized valve of crude oil pond entrance, fuel-displaced; When liquid level is low, close oil pump, open motorized valve, oil-feed.
Further, described data processing module input end is also connected with tail wheel knotmeter, for judging scraper plate duty by measuring scraper plate motor speed.Tail wheel knotmeter is arranged on scrapes board motor offside, and when scraper plate normally moves, tail wheel knotmeter can measure tach signal, if just lose tach signal after scraper plate fracture, thereby judges that scraper plate has fault.
Further, described industrial computer is provided with telecommunication module, for system data is passed to RIMS in real time.
The present invention, by the control system of redundancy is set, realizes automatic control prepared by whole maize germ oil, and reliability is high, controls accurately, is easy to regulate, and saves manpower; There is data remote function simultaneously, by open data-interface, production data can teletransmission to shop floor production control system, whole production run can realize unmanned, and control integration has improved production efficiency greatly, reduce production costs, there is good economic benefit.
Accompanying drawing explanation
Fig. 1 is system chart of the present invention;
Fig. 2 is dual power supply switching circuit figure of the present invention;
In figure, 1, central processing unit control system, 11, primary controller, 12, industrial computer, 13, telecommunication module, 2, Data Acquisition and Conversion System (DACS), 21, data processing module, 22, data outputting module, 23, maize germ moisture transmitter, 24, vapor pressure transmitter, 25, current of electric transmitter, 26, steam-flow meter, 27, level sensor, 28, position transducer, 29, temperature sensor, 30, liquid level sensor, 31, tail wheel knotmeter, 32, crude oil flowmeter, 33, absolute oil nephelometer, 4, electric control system, 41, motor control loop, 42, valve control loop, 43, frequency converter loop, 44, redundancy dual power supply switching circuit, 411, Electromagnetic Valve Circuit, 412, motorized valve loop, 413, pneumatic control valve loop.
Embodiment
A kind of control system of preparing for maize germ oil, as shown in Figure 1, comprise Data Acquisition and Conversion System (DACS) 2, electric control system 4 and central processing unit control system 1, described Data Acquisition and Conversion System (DACS) 2 comprises data processing module 21 and data outputting module 22; Electric control system 4 comprises motor control loop 41, valve control loop 42 and frequency converter loop 44, for realizing the control to motor, valve and frequency converter frequency.Described valve control loop 42 comprises Electromagnetic Valve Circuit 411, motorized valve loop 412 and pneumatic control valve loop 413, Electromagnetic Valve Circuit 411 is for according to the switching of the water cut control fresh water (FW) entrance solenoid valve of maize germ in pot, motorized valve loop 412 is for according to the switching of crude oil pit level information control crude oil entrance motorized valve, and pneumatic control valve loop 413 is for according to the switching of kettle temperature control steam inlet pneumatic control valve.In addition, electric control system 4 also comprises redundancy dual power supply switching circuit 44, for controlling the switching of station service and uninterrupted power source.Central processing unit control system 1 comprises two primary controllers 11 and two industrial computers 12, primary controller 11 is connected redundancy industrial computer 12 with the equal redundant configuration of industrial computer 12 and redundancy primary controller 11 by Redundant Ethernet, another primary controller 11 connects another industrial computer 12, described industrial computer 12 is provided with telecommunication module 13, for system data is passed to RIMS in real time.Described data processing module 21 output terminals are connected with the primary controller 11 of central processing unit control system 1 through data bus, primary controller output terminal connection data output module 22 input ends, and data outputting module 22 output terminals connect electric control system 4.
The input end of data processing module 21 is connected with maize germ moisture transmitter 23, vapor pressure transmitter 24, current of electric transmitter 25, steam-flow meter 26, level sensor 27, position transducer 28, temperature sensor 29, liquid level sensor 30, tail wheel knotmeter 31, crude oil flowmeter 32 and absolute oil nephelometer 33.Wherein, maize germ moisture transmitter 23 is for detection of the water cut of maize germ; Vapor pressure transmitter 24 is arranged on softening kettle entrance, for measuring the vapor pressure of softening kettle entrance so that vapor pressure is stable in assurance pot; Current of electric transmitter 26 is located on motor control loop, for detection of squeezing Main motor current, control delivery rate and then assurance resid amount and water cut; Steam-flow meter 26 is arranged on workshop main steam range, for detection of the steam flow of workshop main steam range so that gas consumption between scale car; Level sensor 27 is arranged in feed bin, scrapes the rotating speed of board motor for detection of the material level information in feed bin to control; Position transducer 28 is for the positional information of perception valve, and for valve control loop provides signal, temperature sensor 29 is arranged in softening kettle, for detection of the temperature of maize germ in softening kettle; Liquid level sensor 30, controls liquid level for detection of crude oil pit level information to control electric motor loop; Tail wheel knotmeter 31 is arranged on scrapes board motor offside, for judging scraper plate duty by measuring motor speed; Crude oil flowmeter 32, for measuring the crude oil amount that preliminary when squeezing produces, instructs the motor speed of squeezing section; Absolute oil nephelometer 33, for measuring oily turbidity, is processed workshop section for raw material reference is provided.
As shown in Figure 2, redundancy dual power supply switching circuit, comprises a two-way power switcher, connects respectively station service and ups power, for controlling the switching of station service and uninterrupted power source.When any road fault, double loop power supply switch auto-action, is connected to another road power supply by load, guarantees output voltage stabilization, reliable and stable power supply is provided to on-the-spot each loop.
The course of work of switching circuit is as follows: K1, K2 are all closed under normal circumstances, now 1,2 connects, and 3,4 connect, and R1, R2 disconnect R3, R4 and disconnect, by ups power supplying power for outside; In the time that ups power breaks down, 1,2 disconnect, and 3,4 disconnect, and R1, R2 connect, and R3, R4 connect, by service power supplying power for outside.
Below each control procedure is specifically described:
Inlet steam pressure and softening kettle temperature controlled processes: temperature sensor 29 is arranged in softening kettle, for measuring maize germ temperature, vapor pressure transmitter 24 is arranged on softening kettle entrance, for measuring inlet steam pressure; Measure physical quantities is converted to electric signal, electric signal transmission, to data processing module 21, is transferred to primary controller 11 through data bus after it is converted to digital signal, primary controller 11 sends it to industrial computer 12 and shows.Meanwhile, primary controller 11 according to the signal of pressure signal setting value and temperature signal setting value and input contrast, the backward data outputting module 22 of computing sends steering order.When kettle temperature is during higher than setting value, regulate the pneumatic control valve of softening kettle inlet steam intake line, reduce steam input quantity, during lower than setting value, increase steam input quantity.When pot inner pressure is during higher than setting value, regulate the pneumatic control valve of softening kettle inlet steam intake line, reduce steam input quantity, during lower than setting value, increase steam input quantity, thereby realize the stable of vapor pressure and kettle temperature.
Squeezing Main motor current control procedure: current of electric transmitter 25 is located on motor control loop, for detection of the electric current of the main motor of squeezing, current signal is passed to primary controller 11 after treatment, primary controller 11 contrasts with input signal according to current setting value (setting according to the experience of water cut and resid amount and electric current respective value), the backward data outputting module 22 of computing is sent steering order, during higher than setting value, output low frequency rate, delivery rate slows down, during lower than setting value, output high-frequency, accelerate delivery rate, controlling current of electric by this remains near current setting value, thereby make Residual oil water cut and oleaginousness reach technological requirement.
Scrape board motor operation control procedure: level sensor 27 is arranged in feed bin, for detection of material level information, send to after treatment primary controller 11, primary controller 11 according to material level setting value and input signal contrast, the backward data outputting module 22 of computing sends steering order, data outputting module 22 is transferred to the frequency converter loop 43 of electric control system 4, the rotating speed of board motor is scraped in control, during higher than setting value, output high-frequency, accelerate motor speed, during lower than setting value, output low frequency rate, the motor speed that slows down, realizes constant material level.
Crude oil pit level control procedure: liquid level sensor 30 is for detection of liquid level information in crude oil pond, be transferred to after treatment primary controller 11, primary controller 11 according to liquid level setting value and input signal contrast, the backward data outputting module 22 of computing sends steering order, when liquid level is high, open the oil pump of crude oil pond outlet, close the motorized valve of crude oil pond entrance, fuel-displaced; When liquid level is low, close oil pump, open motorized valve, oil-feed.
Claims (8)
1. a control system of preparing for maize germ oil, comprise Data Acquisition and Conversion System (DACS), electric control system and central processing unit control system, it is characterized in that: described Data Acquisition and Conversion System (DACS) comprises data processing module and data outputting module, the input end of data processing module is connected with maize germ moisture transmitter, vapor pressure transmitter, current of electric transmitter, steam-flow meter, level sensor, position transducer, temperature sensor, wherein, maize germ moisture transmitter is for detection of the water cut of maize germ in pot, vapor pressure transmitter is for measuring the vapor pressure of softening kettle entrance so that vapor pressure is stable in assurance pot, current of electric transmitter is for detection of current of electric, control delivery rate and then guarantee resid amount and water cut, steam-flow meter for detection of the steam flow of workshop main steam range so that gas consumption between scale car, level sensor is scraped the rotating speed of board motor for detection of the material level information in feed bin to control, position transducer is for the positional information of perception valve, temperature sensor is for detection of the temperature of maize germ in softening kettle, electric control system comprises motor control loop, valve control loop and frequency converter loop, for realizing the control to motor, valve and frequency converter frequency, central control system comprises two primary controllers and two industrial computers, and primary controller is connected redundancy industrial computer with the equal redundant configuration of industrial computer and redundancy primary controller by Redundant Ethernet, data processing module output terminal is connected with the primary controller of central processing unit control system through data bus, primary controller output terminal connection data output module input end, and data outputting module output terminal connects electric control system.
2. the control system of preparing for maize germ oil according to claim 1, it is characterized in that: described valve control loop comprises Electromagnetic Valve Circuit, motorized valve loop and pneumatic control valve loop, Electromagnetic Valve Circuit is used for according to the switching of the water cut control fresh water (FW) entrance solenoid valve of maize germ in pot, motorized valve loop is used for according to the switching of crude oil pit level information control crude oil entrance motorized valve, and pneumatic control valve loop is used for according to the switching of kettle temperature control steam inlet pneumatic control valve.
3. the control system of preparing for maize germ oil according to claim 1 and 2, is characterized in that: described electric control system also comprises redundancy dual power supply switching circuit, for controlling the switching of station service and uninterrupted power source.
4. the control system of preparing for maize germ oil according to claim 3, it is characterized in that: described data processing module input end is also connected with crude oil flowmeter, be used for the crude oil amount of producing while measuring preliminary squeezing, instruct the motor speed of squeezing section.
5. the control system of preparing for maize germ oil according to claim 3, is characterized in that: described data processing module input end is also connected with absolute oil nephelometer, for measuring oily turbidity, processes workshop section reference is provided for raw material.
6. the control system of preparing for maize germ oil according to claim 3, it is characterized in that: described data processing module input end is also connected with liquid level sensor, control liquid level for detection of crude oil pit level information to control electric motor loop and motorized valve loop.
7. the control system of preparing for maize germ oil according to claim 3, is characterized in that: described data processing module input end is also connected with tail wheel knotmeter, for judging scraper plate duty by measuring scraper plate motor speed.
8. according to the control system of preparing for maize germ oil described in claim 4 to 7 any one, it is characterized in that: described industrial computer is provided with telecommunication module, for system data is passed to RIMS in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068240.5A CN103809569B (en) | 2014-02-27 | 2014-02-27 | A kind of control system prepared for Fructus Maydis oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068240.5A CN103809569B (en) | 2014-02-27 | 2014-02-27 | A kind of control system prepared for Fructus Maydis oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103809569A true CN103809569A (en) | 2014-05-21 |
| CN103809569B CN103809569B (en) | 2016-08-17 |
Family
ID=50706505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410068240.5A Active CN103809569B (en) | 2014-02-27 | 2014-02-27 | A kind of control system prepared for Fructus Maydis oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103809569B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730961A (en) * | 2015-04-15 | 2015-06-24 | 安徽凡尔电液技术有限公司 | Intelligent industrial control machine |
| CN104793595A (en) * | 2015-04-09 | 2015-07-22 | 江南大学 | Real-time data acquisition system of wheat processing factory |
| CN106094678A (en) * | 2016-06-20 | 2016-11-09 | 河南皓佳农业开发有限公司 | A kind of intelligence corn production automation monitoring system |
| CN106292612A (en) * | 2016-10-10 | 2017-01-04 | 深圳万发创新进出口贸易有限公司 | A kind of ladle baking facility on-line fault diagnosis system |
| CN109806963A (en) * | 2019-03-19 | 2019-05-28 | 郑州豫鑫电气控制技术有限公司 | The milling control method steadily controlled based on discharging |
| CN109945921A (en) * | 2019-03-15 | 2019-06-28 | 安徽华星选矿科技有限公司 | A kind of sine screen operating parameter monitoring system |
| CN113050535A (en) * | 2021-03-30 | 2021-06-29 | 武汉中油康尼科技有限公司 | Automatic refining method based on PLC control |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002063240A (en) * | 2000-06-06 | 2002-02-28 | Mori Seiki Co Ltd | Production management system |
| WO2004102293A1 (en) * | 2003-05-13 | 2004-11-25 | Tentaclion Gmbh | Modular data acquisition and transmission system and transmission device therefor |
| CN202168433U (en) * | 2011-08-03 | 2012-03-21 | 丹阳市永兴面粉有限公司 | Cold pressing preparation system of wheat-germ oil |
| CN102520685A (en) * | 2011-12-06 | 2012-06-27 | 北京山竹科技有限公司 | Data acquisition system capable of monitoring and controlling industrial field and acquisition method thereof |
-
2014
- 2014-02-27 CN CN201410068240.5A patent/CN103809569B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002063240A (en) * | 2000-06-06 | 2002-02-28 | Mori Seiki Co Ltd | Production management system |
| WO2004102293A1 (en) * | 2003-05-13 | 2004-11-25 | Tentaclion Gmbh | Modular data acquisition and transmission system and transmission device therefor |
| CN202168433U (en) * | 2011-08-03 | 2012-03-21 | 丹阳市永兴面粉有限公司 | Cold pressing preparation system of wheat-germ oil |
| CN102520685A (en) * | 2011-12-06 | 2012-06-27 | 北京山竹科技有限公司 | Data acquisition system capable of monitoring and controlling industrial field and acquisition method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793595A (en) * | 2015-04-09 | 2015-07-22 | 江南大学 | Real-time data acquisition system of wheat processing factory |
| CN104730961A (en) * | 2015-04-15 | 2015-06-24 | 安徽凡尔电液技术有限公司 | Intelligent industrial control machine |
| CN106094678A (en) * | 2016-06-20 | 2016-11-09 | 河南皓佳农业开发有限公司 | A kind of intelligence corn production automation monitoring system |
| CN106292612A (en) * | 2016-10-10 | 2017-01-04 | 深圳万发创新进出口贸易有限公司 | A kind of ladle baking facility on-line fault diagnosis system |
| CN106292612B (en) * | 2016-10-10 | 2018-12-28 | 江苏汇智达信息科技有限公司 | A kind of ladle baking facility on-line fault diagnosis system |
| CN109945921A (en) * | 2019-03-15 | 2019-06-28 | 安徽华星选矿科技有限公司 | A kind of sine screen operating parameter monitoring system |
| CN109806963A (en) * | 2019-03-19 | 2019-05-28 | 郑州豫鑫电气控制技术有限公司 | The milling control method steadily controlled based on discharging |
| CN109806963B (en) * | 2019-03-19 | 2021-03-23 | 郑州豫鑫电气控制技术有限公司 | Milling control method based on stable discharging control |
| CN113050535A (en) * | 2021-03-30 | 2021-06-29 | 武汉中油康尼科技有限公司 | Automatic refining method based on PLC control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103809569B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103809569A (en) | Control system for corn germ oil production | |
| CN108037697B (en) | Sodium hypochlorite preparation system and working method thereof | |
| CN202028456U (en) | Ball mill control system | |
| CN104656594A (en) | Automatic coal blending system for coal mines | |
| CN104048517B (en) | A kind of mid-carbon fe-mn electric refining furnaces electric control system | |
| CN204009550U (en) | Polygamy side's traditional Chinese medicine extraction automatic control system | |
| CN101625567A (en) | Bus control method for pulse bag type dust cleaner and device | |
| CN204360182U (en) | Decentralized type sewage treating stations robotization centralized management system | |
| CN104883752A (en) | Method for operating an apparatus having heating control and/or regulation device, device and apparatus | |
| CN103318631A (en) | Speed control device of disk feeder | |
| CN105278513A (en) | Automatic control system | |
| CN204672246U (en) | A kind of agitator tank autofeed computer control system | |
| CN205422666U (en) | Intelligent water injection device of long -range automation is adorned to sled | |
| CN203882183U (en) | Centralized remote monitoring device for drying production line | |
| CN103624965A (en) | Meter-weight control system of plastic-pipe extruding equipment | |
| CN204509129U (en) | For the feeder system of sticky material spraying | |
| CN204448248U (en) | Europe version grinds intelligent automatic regulated controller | |
| CN204314681U (en) | High density interconnect circuit board sinks the external groove liquid of copper cash and adds control system | |
| CN203012536U (en) | Automatic-control PH neutralization device | |
| CN204028676U (en) | There is the electronic stroke adjusting device of volume pump of long-range operation controlling functions | |
| CN103216215A (en) | Intelligent control system of pumping unit | |
| CN202583899U (en) | Liquid-feeding automatic control system and control device | |
| CN202626152U (en) | Automatic blending system | |
| CN101782783B (en) | Automatic raw material humidity control device of vacuum extruder | |
| CN201788399U (en) | Grease lubrication control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A control system for corn germ oil preparation Effective date of registration: 20220615 Granted publication date: 20160817 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: JINAN HELISHI AUTOMATION Co.,Ltd. Registration number: Y2022980007737 |