CN102226643B - Rotary kiln automatic control system and method - Google Patents
Rotary kiln automatic control system and method Download PDFInfo
- Publication number
- CN102226643B CN102226643B CN 201110074636 CN201110074636A CN102226643B CN 102226643 B CN102226643 B CN 102226643B CN 201110074636 CN201110074636 CN 201110074636 CN 201110074636 A CN201110074636 A CN 201110074636A CN 102226643 B CN102226643 B CN 102226643B
- Authority
- CN
- China
- Prior art keywords
- temperature
- value
- rotary kiln
- flue
- temperature value
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention relates to a rotary kiln automatic control system. The rotary kiln automatic control system comprises a fuel supplying device, a rotary kiln, a temperature detection device, a field control station, a temperature regulating module and a central control room operation station. The field control station compares the detected radiation temperature signals, flame temperature signals and flue temperature signals which are generated by the temperature detection device with the preset radiation temperature reference value, the flame temperature reference value and the flue temperature reference value to control the fuel supplying device to regulate the fuel supply and the temperature regulating module to control the air flow and to monitor the host machine of the rotary kiln; and the central control room operation station receives the radiation temperature value, the flame temperature value, the flue temperature value and the technical parameter value which are provided by the field control station, and stores and displays the received values. Thus, the system realizes automatic control of the production process of rotary kiln, ensures the stability of temperature in the rotary kiln, and further ensures the quality stability of forged reduction materials. The invention also provides an automatic control method of the rotary kiln.
Description
Technical field:
The present invention relates to the metal smelt technical field, particularly a kind of rotary kiln automatic control system and rotary kiln autocontrol method.
Background technology:
Magnesium metal is found in the initial stage in 18th century, so far the history in existing more than 200 year.Because magnesium and good mechanical performance and the physical and chemical performance of magnesium alloy, magnesium in industrial application more and more widely.The method of China's magnesium smelting at present is mainly Pidgeon process.Production of magnesium by pidgeonprocess can be divided into dolomite calcination, feedstock production, reduction and refining four-stage.In the dolomite calcination stage, generally adopt rotary kiln that dolomite mineral is calcined and obtain to reduce raw material.
Yet,, make and cause the reduction raw material quality instability of calcining out by technological parameter control disunity in the rotary kiln running process because rotary kiln belongs to manual operation in the prior art aspect technology controlling and process.For example, the staff can not in time monitor the operational factor of rotary kiln and adjust the interior calcining heat of rotary kiln, causes the calcining heat instability in the rotary kiln, feasible then reduction raw material quality instability of calcining out.
Summary of the invention:
In view of this, be necessary to provide a kind of and can guarantee the stay-in-grade rotary kiln automatic control system of the reduction raw material of calcining out.
Also be necessary to provide a kind of and can guarantee the stay-in-grade rotary kiln autocontrol method of the reduction raw material of calcining out.
A kind of rotary kiln automatic control system, this rotary kiln automatic control system comprises fuel supply device, rotary kiln, temperature-detecting device, field control station, temperature adjusting module and Central Control Room active station.Fuel supply device is used to rotary kiln that fuel is provided, and adjusts the supply of fuel according to the control signal that field control station provides.The fuel that utilizes fuel-device to provide is provided rotary kiln, with preset temperature dolomite mineral is calcined, to obtain the reduction raw material.Temperature-detecting device is used to detect kiln body radiation temperature, kiln hood flame temperature and the kiln tail flue temperature of rotary kiln, and produce corresponding radiation temperature signal, flame temperature signal, flue temperature signal, and radiation temperature signal, flame temperature signal, the flue temperature signal that produces offered field control station.Field control station is used for the radiation temperature signal that the detected temperatures checkout gear produces, the flame temperature signal, the flue temperature signal, and according to detected radiation temperature signal, the flame temperature signal, the flue temperature signal produces corresponding radiation temperature value, the flame temperature value, the flue temperature value, and with the radiation temperature value that produces, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, the flue temperature a reference value relatively, comparing the radiation temperature value, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, when the flue temperature a reference value was not corresponding, the control signal that output is preset was to fuel supply device and temperature adjusting module; Field control station also is used for the rotary kiln main frame is monitored, and produces corresponding technical parameter value; Radiation temperature value, flame temperature value, flue temperature value, technical parameter value that field control station also is used for producing send the Central Control Room active station to.The control signal that the temperature adjusting module is used for providing according to field control station is controlled air mass flow, so that the temperature maintenance in the rotary kiln is at preset temperature.The Central Control Room active station is used to receive radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that field control station provides, and radiation temperature value, flame temperature value, flue temperature value, the technical parameter value of storage and demonstration reception, also be used for generating form according to the radiation temperature value that receives, flame temperature value, flue temperature value, technical parameter value.
A kind of rotary kiln autocontrol method, this rotary kiln autocontrol method is applied to comprise that this rotary kiln autocontrol method may further comprise the steps in the rotary kiln automatic control system of fuel supply device, rotary kiln, temperature-detecting device, field control station, temperature adjusting module and Central Control Room active station:
Provide fuel by fuel supply device for rotary kiln, so that rotary kiln calcines dolomite mineral with preset temperature, to obtain the reduction raw material;
Detect kiln body radiation temperature, kiln hood flame temperature and the kiln tail flue temperature of rotary kiln by temperature-detecting device, and produce corresponding radiation temperature signal, flame temperature signal, flue temperature signal;
Radiation temperature signal by the generation of field control station detected temperatures checkout gear, the flame temperature signal, the flue temperature signal, and according to detected radiation temperature signal, the flame temperature signal, the flue temperature signal produces corresponding radiation temperature value, the flame temperature value, the flue temperature value, and with the radiation temperature value that produces, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, the flue temperature a reference value relatively, comparing the radiation temperature value, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, when the flue temperature a reference value is not corresponding, the control signal that output is preset is to fuel supply device and temperature adjusting module, so that fuel supply device is adjusted the supply of fuel and made temperature adjusting module control air mass flow;
By field control station the rotary kiln main frame is monitored, and produced corresponding technical parameter value, send radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that produces to the Central Control Room active station;
Receive radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that field control station provides by the Central Control Room active station, and radiation temperature value, flame temperature value, flue temperature value, the technical parameter value of storage and demonstration reception, generate form according to the radiation temperature value that receives, flame temperature value, flue temperature value, technical parameter value.
When utilizing above-mentioned rotary kiln automatic control system and rotary kiln autocontrol method to carry out dolomite calcination production, radiation temperature signal by the generation of field control station detected temperatures checkout gear, the flame temperature signal, and according to detected radiation temperature signal, the flame temperature signal, the flue temperature signal produces corresponding radiation temperature value, the flame temperature value, the flue temperature value, and with the radiation temperature value that produces, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, the flue temperature a reference value relatively, comparing the radiation temperature value, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, when the flue temperature a reference value is not corresponding, the control signal that output is preset is to fuel supply device and temperature adjusting module, so that fuel supply device is adjusted the supply of fuel and made temperature adjusting module control air mass flow; Field control station is also monitored the rotary kiln main frame, send the radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that produce to the Central Control Room active station, the Central Control Room active station shows radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that receives, generate form according to the radiation temperature value that receives, flame temperature value, flue temperature value, technical parameter value, so realize the automation control of rotary kiln production process, guarantee the stable of rotary kiln temperature, and then guaranteed the reduction raw material steady quality calcined out.
Description of drawings:
Accompanying drawing 1 is the functional block diagram of the rotary kiln automatic control system of a better embodiment.
Accompanying drawing 2 is flow charts of the rotary kiln autocontrol method of a better embodiment.
Among the figure: rotary kiln automatic control system 10, fuel supply device 11, rotary kiln 12, temperature-detecting device 113, field control station 14, temperature adjusting module 15, Central Control Room active station 16, rotary kiln autocontrol method step S301～S305
The specific embodiment:
Rotary kiln automatic control system 10 as shown in Figure 1, this rotary kiln automatic control system 10 comprises fuel supply device 11, rotary kiln 12, temperature-detecting device 113, field control station 14, temperature adjusting module 15 and Central Control Room active station 16.
The fuel that utilizes fuel-device 11 to provide is provided rotary kiln 12, with preset temperature dolomite mineral is calcined, to obtain the reduction raw material.
Temperature-detecting device 13 is used to detect kiln body radiation temperature, kiln hood flame temperature and the kiln tail flue temperature of rotary kiln 12, and produce corresponding radiation temperature signal, flame temperature signal, flue temperature signal, and radiation temperature signal, flame temperature signal, the flue temperature signal that produces offered field control station 14.In the present embodiment, temperature-detecting device 13 is double-colored far infrared temperature monitor.
The control signal that temperature adjusting module 15 is used for providing according to field control station 14 is controlled air mass flow, so that the temperature maintenance in the rotary kiln 12 is at preset temperature.In the present embodiment, temperature adjusting module 15 is for being installed in the electric control valve in the air channel.
Central Control Room active station 16 is used to receive radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that field control station 14 provides, and storage reaches radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that shows reception with default form, also be used for reaching equipment running status being monitored according to the radiation temperature value that receives, flame temperature value, flue temperature value, technical parameter value generation form, and overrun condition sent warning, and, form is sent to corresponding manager according to the gerentocratic address information that prestores.Central Control Room active station 16 shows the ruuning situation of whole production line, and the part amplification can be shown, the dynamic parameter trend of demonstration in ought be for the previous period, analogue instrument shows that major parameter integrates with the form of simulation conventional instrument, is convenient to observe, analyzes, operation.Central Control Room active station 16 can be that unit preserves automatically, the recording equipment start-stop reaches (calculating) normal operation rate with the second with all changes value by the time (can inquire about day, hour, minute, second), so be convenient to thermal parameter data trend curve for the analysis and research data, examine a certain period or annual equipment operation situation.The electronic equipment of Central Control Room active station 16 for having data-handling capacity for example can be computer.The above-mentioned functions that Central Control Room active station 16 is realized adopts a sets of computer program representation, and Central Control Room active station 16 these sets of computer programs of operation were carried out corresponding function afterwards.Central Control Room active station 16 communicates by wireless network, cable network with field control station 14.
Please referring to Fig. 2, it is the rotary kiln autocontrol method of a better embodiment, this rotary kiln autocontrol method is applied to comprise that this rotary kiln autocontrol method may further comprise the steps in the rotary kiln automatic control system of fuel supply device, rotary kiln, temperature-detecting device, field control station, temperature adjusting module and Central Control Room active station:
Step S301 provides fuel by fuel supply device for rotary kiln, so that rotary kiln calcines dolomite mineral with preset temperature, to obtain the reduction raw material.
Step S302 detects kiln body radiation temperature, kiln hood flame temperature and the kiln tail flue temperature of rotary kiln by temperature-detecting device, and produces corresponding radiation temperature signal, flame temperature signal, flue temperature signal.In the present embodiment, temperature-detecting device is double-colored far infrared temperature monitor.
Step S303, radiation temperature signal by the generation of field control station detected temperatures checkout gear, the flame temperature signal, and according to detected radiation temperature signal, the flame temperature signal, the flue temperature signal produces corresponding radiation temperature value, the flame temperature value, the flue temperature value, and with the radiation temperature value that produces, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, the flue temperature a reference value relatively, comparing the radiation temperature value, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, when the flue temperature a reference value is not corresponding, the control signal that output is preset is to fuel supply device and temperature adjusting module, so that fuel supply device is adjusted the supply of fuel and made temperature adjusting module control air mass flow.Wherein, field control station is the electronic equipment with data-handling capacity, for example can be computer, PLC etc.
Step S304 monitors the rotary kiln main frame by field control station, and produces corresponding technical parameter value, sends radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that produces to the Central Control Room active station.In the present embodiment, the temperature adjusting module is the electric control valve that is installed in the air channel.
Step S305, receive radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that field control station provides by the Central Control Room active station, and radiation temperature value, flame temperature value, flue temperature value, the technical parameter value of storage and demonstration reception, also be used for reaching equipment running status being monitored according to the radiation temperature value that receives, flame temperature value, flue temperature value, technical parameter value generation form, and overrun condition sent warning, and, form is sent to corresponding manager according to the gerentocratic address information that prestores.Wherein, the Central Control Room active station can be the electronic equipment with data-handling capacity, for example can be computer.
Claims (9)
1. rotary kiln automatic control system, it is characterized in that: this rotary kiln automatic control system comprises fuel supply device, rotary kiln, temperature-detecting device, field control station, temperature adjusting module and Central Control Room active station;
Fuel supply device is used to rotary kiln that fuel is provided, and adjusts the supply of fuel according to the control signal that field control station provides;
The fuel that utilizes fuel-device to provide is provided rotary kiln, with preset temperature dolomite mineral is calcined, to obtain the reduction raw material;
Temperature-detecting device is used to detect kiln body radiation temperature, kiln hood flame temperature and the kiln tail flue temperature of rotary kiln, and produce corresponding radiation temperature signal, flame temperature signal, flue temperature signal, and radiation temperature signal, flame temperature signal, the flue temperature signal that produces offered field control station;
Field control station is used for the radiation temperature signal that the detected temperatures checkout gear produces, the flame temperature signal, the flue temperature signal, and according to detected radiation temperature signal, the flame temperature signal, the flue temperature signal produces corresponding radiation temperature value, the flame temperature value, the flue temperature value, and with the radiation temperature value that produces, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, the flue temperature a reference value relatively, comparing the radiation temperature value, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, when the flue temperature a reference value was not corresponding, the control signal that output is preset was to fuel supply device and temperature adjusting module; Field control station also is used for the rotary kiln main frame is monitored, and produces corresponding technical parameter value; Radiation temperature value, flame temperature value, flue temperature value, technical parameter value that field control station also is used for producing send the Central Control Room active station to;
The control signal that the temperature adjusting module is used for providing according to field control station is controlled air mass flow, so that the temperature maintenance in the rotary kiln is at preset temperature;
The Central Control Room active station is used to receive radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that field control station provides, and radiation temperature value, flame temperature value, flue temperature value, the technical parameter value of storage and demonstration reception, also be used for generating form according to the radiation temperature value that receives, flame temperature value, flue temperature value, technical parameter value.
2. rotary kiln automatic control system according to claim 1 is characterized in that: temperature-detecting device is double-colored far infrared temperature monitor.
3. rotary kiln automatic control system according to claim 1, it is characterized in that: field control station is also analyzed, is handled the radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that produce, realizes automatic control and monitoring to each electric equipment in the rotary kiln production process.
4. rotary kiln automatic control system according to claim 1, it is characterized in that: the Central Control Room active station also is used for according to the radiation temperature value that receives, flame temperature value, flue temperature value, technical parameter value generation form and equipment running status is monitored, and overrun condition is sent warning.
5. rotary kiln automatic control system according to claim 1 is characterized in that: the Central Control Room active station also is used for and according to the gerentocratic address information that prestores, form is sent to corresponding manager.
6. rotary kiln automatic control system according to claim 1, it is characterized in that: the Central Control Room active station also shows the ruuning situation of whole production line, and the part amplification can be shown, the dynamic parameter trend of demonstration in ought be for the previous period, analogue instrument shows that major parameter integrates with the form of simulation conventional instrument, is convenient to observe, analyzes, operates.
7. rotary kiln autocontrol method, this rotary kiln autocontrol method is applied to comprise that this rotary kiln autocontrol method may further comprise the steps in the rotary kiln automatic control system of fuel supply device, rotary kiln, temperature-detecting device, field control station, temperature adjusting module and Central Control Room active station:
Provide fuel by fuel supply device for rotary kiln, so that rotary kiln calcines dolomite mineral with preset temperature, to obtain the reduction raw material;
Detect kiln body radiation temperature, kiln hood flame temperature and the kiln tail flue temperature of rotary kiln by temperature-detecting device, and produce corresponding radiation temperature signal, flame temperature signal, flue temperature signal;
Radiation temperature signal by the generation of field control station detected temperatures checkout gear, the flame temperature signal, the flue temperature signal, and according to detected radiation temperature signal, the flame temperature signal, the flue temperature signal produces corresponding radiation temperature value, the flame temperature value, the flue temperature value, and with the radiation temperature value that produces, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, the flue temperature a reference value relatively, comparing the radiation temperature value, the flame temperature value, flue temperature value and default radiation temperature a reference value, the flame temperature a reference value, when the flue temperature a reference value is not corresponding, the control signal that output is preset is to fuel supply device and temperature adjusting module, so that fuel supply device is adjusted the supply of fuel and made temperature adjusting module control air mass flow;
By field control station the rotary kiln main frame is monitored, and produced corresponding technical parameter value, send radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that produces to the Central Control Room active station;
Receive radiation temperature value, flame temperature value, flue temperature value, the technical parameter value that field control station provides by the Central Control Room active station, and radiation temperature value, flame temperature value, flue temperature value, the technical parameter value of storage and demonstration reception, generate form according to the radiation temperature value that receives, flame temperature value, flue temperature value, technical parameter value.
8. rotary kiln autocontrol method according to claim 7 is characterized in that: temperature-detecting device is double-colored far infrared temperature monitor.
9. rotary kiln autocontrol method according to claim 7 is characterized in that, and is further comprising the steps of: control chamber active station sends to corresponding manager according to the gerentocratic address information that prestores with form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110074636 CN102226643B (en) | 2011-03-28 | 2011-03-28 | Rotary kiln automatic control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110074636 CN102226643B (en) | 2011-03-28 | 2011-03-28 | Rotary kiln automatic control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102226643A CN102226643A (en) | 2011-10-26 |
| CN102226643B true CN102226643B (en) | 2013-07-31 |
Family
ID=44807630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110074636 Expired - Fee Related CN102226643B (en) | 2011-03-28 | 2011-03-28 | Rotary kiln automatic control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102226643B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944108B (en) * | 2012-10-08 | 2015-02-25 | 河北钢铁股份有限公司承德分公司 | Device and method for controlling cooling temperature of high-temperature flue pipe of disc drying equipment |
| CN103105059B (en) * | 2013-02-28 | 2014-08-06 | 新兴能源装备股份有限公司 | Magnesium metal rotary kiln feed control device |
| CN103217013B (en) * | 2013-05-13 | 2015-02-11 | 北京和隆优化科技股份有限公司 | Optimization control method of temperature gradient inside rotary kiln |
| CN103234347B (en) * | 2013-05-13 | 2014-09-10 | 北京和隆优化科技股份有限公司 | Method for optimizing and controlling rotary kiln air volume |
| CN103225820B (en) * | 2013-05-13 | 2015-05-13 | 北京和隆优化科技股份有限公司 | Chain grate furnace combustion optimization control system |
| CN105021030A (en) * | 2014-04-21 | 2015-11-04 | 东北大学 | Integrated automation control system for aluminum oxide clinker kiln |
| CN104019661B (en) * | 2014-05-26 | 2015-10-28 | 北方工业大学 | Rotary kiln control system |
| CN104019662B (en) * | 2014-05-26 | 2015-10-21 | 北方工业大学 | Rotary kiln control system |
| CN107202952A (en) * | 2017-07-06 | 2017-09-26 | 北京信息科技大学 | Rotary kiln method for diagnosing faults, fault diagnosis GUI and system based on wavelet neural network |
| CN108663082A (en) * | 2018-03-29 | 2018-10-16 | 四川顺窑科技有限公司 | A kind of rotary kiln dynamic operation data acquisition device and acquisition method |
| CN112048587B (en) * | 2019-06-05 | 2022-06-03 | 中冶长天国际工程有限责任公司 | Method for controlling temperature of reduction rotary kiln by optimizing and adjusting fuel quantity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000159553A (en) * | 1998-11-25 | 2000-06-13 | Mitsubishi Heavy Ind Ltd | Controller and method for kiln process |
| JP2004011990A (en) * | 2002-06-05 | 2004-01-15 | Sumitomo Metal Mining Co Ltd | Combustion control device and method for rotary kiln |
| EP1898171A1 (en) * | 2006-09-11 | 2008-03-12 | ABB Research Ltd | Precalciner temperature control |
| CN101963448A (en) * | 2009-07-23 | 2011-02-02 | 株式会社村田制作所 | Method and device for measuring temperature in a furnace, heat treatment device and calcination synthesis method of a ceramic material powder |
| CN201772734U (en) * | 2010-08-04 | 2011-03-23 | 横店集团东磁股份有限公司 | Automatic temperature control device of rotary kiln system |
-
2011
- 2011-03-28 CN CN 201110074636 patent/CN102226643B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000159553A (en) * | 1998-11-25 | 2000-06-13 | Mitsubishi Heavy Ind Ltd | Controller and method for kiln process |
| JP2004011990A (en) * | 2002-06-05 | 2004-01-15 | Sumitomo Metal Mining Co Ltd | Combustion control device and method for rotary kiln |
| EP1898171A1 (en) * | 2006-09-11 | 2008-03-12 | ABB Research Ltd | Precalciner temperature control |
| CN101963448A (en) * | 2009-07-23 | 2011-02-02 | 株式会社村田制作所 | Method and device for measuring temperature in a furnace, heat treatment device and calcination synthesis method of a ceramic material powder |
| CN201772734U (en) * | 2010-08-04 | 2011-03-23 | 横店集团东磁股份有限公司 | Automatic temperature control device of rotary kiln system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102226643A (en) | 2011-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102226643B (en) | Rotary kiln automatic control system and method | |
| EP2860599B1 (en) | Control device with PLC programmable logic controller and with a touchscreen | |
| CN102759939B (en) | Control system and control method of annealing furnace | |
| CN105937823B (en) | A kind of earth source heat pump control method and system | |
| CN111156817B (en) | Method and system for controlling sintering temperature of roller kiln | |
| CN113867289A (en) | Industrial big data-based cement production sintering system control index optimization method | |
| CN201876400U (en) | Device for detecting air permeability of steel ladle air permeable brick | |
| CN202600517U (en) | High-accuracy temperature controller | |
| CN105791396B (en) | A kind of long-distance monitoring method, monitor terminal and remote monitoring system | |
| CN104328276A (en) | Method of controlling solid fuel in sintering process, device and system | |
| Zakoldaev et al. | Implementation of H2M technology and augmented reality for operation of cyber-physical production of the Industry 4.0 | |
| CN216585072U (en) | Multi-section annealing control system of bell-type bright annealing furnace | |
| CN100491547C (en) | High-temperature ring annealing furnace information control system and information control center server | |
| CN202989228U (en) | Large-space hearth of vacuum furnace for heat treatment | |
| CN114488938A (en) | Remote control system and remote control method | |
| EP2948822B1 (en) | Methods and apparatus to interface with a digital control loop | |
| CN202694173U (en) | Cement decomposition furnace with temperature PID fuzzy control system | |
| CN102010124B (en) | Automatic gas flow control device for wire drawing furnace | |
| CN202150058U (en) | Cement kiln decomposing furnace temperature controlling device | |
| CN112904750A (en) | Internet of things comprehensive intelligent online monitoring system and method for catalyst roasting equipment | |
| CN205368437U (en) | Become structure, air -cushion type guenching unit and system of spouting | |
| CN207335412U (en) | A kind of lime shaft preheater blanking automatic controller | |
| CN103526189A (en) | MOCVD (Metal Organic Chemical Vapor Deposition) automatic control system | |
| WO2015162792A1 (en) | Function unit, analog input unit, and programmable controller system | |
| CN103175622A (en) | Furnace temperature detection system for nickel-iron melting vertical furnace |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |