CN104729276B - Grain drying tower intelligent energy-saving control system - Google Patents
Grain drying tower intelligent energy-saving control system Download PDFInfo
- Publication number
- CN104729276B CN104729276B CN201510163269.6A CN201510163269A CN104729276B CN 104729276 B CN104729276 B CN 104729276B CN 201510163269 A CN201510163269 A CN 201510163269A CN 104729276 B CN104729276 B CN 104729276B
- Authority
- CN
- China
- Prior art keywords
- grain
- temperature
- control
- plc
- signal input
- 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.)
- Active
Links
- 238000001035 drying Methods 0.000 title claims abstract description 175
- 235000013339 cereals Nutrition 0.000 claims abstract description 329
- 238000001514 detection method Methods 0.000 claims abstract description 100
- 239000003245 coal Substances 0.000 claims abstract description 77
- 238000001816 cooling Methods 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000002485 combustion reaction Methods 0.000 claims abstract description 30
- 238000003860 storage Methods 0.000 claims abstract description 23
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 238000005276 aerator Methods 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 21
- 238000004804 winding Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 3
- 102100026205 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase gamma-1 Human genes 0.000 description 60
- 101000691599 Homo sapiens 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase gamma-1 Proteins 0.000 description 60
- 241000273930 Brevoortia tyrannus Species 0.000 description 40
- 235000021055 solid food Nutrition 0.000 description 20
- 238000000034 method Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 230000008016 vaporization Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009834 vaporization Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 230000002354 daily effect Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001365789 Oenanthe crocata Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 150000002333 glycines Chemical class 0.000 description 1
- 239000011551 heat transfer agent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical group [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
Grain drying tower intelligent energy-saving control system, relate to grain drying tower intelligent power saving control field, be in order to solve fuel and waste of energy that existing grain drying tower exists, heat exchanger cannot ensure service life, each drying section cannot realize the problems such as ladder temperature air-supply.It uses coal bunker control unit in air stove, hearth of hot-blast stove temperature detection control unit, combustion chamber draft value Detection & Controling unit, heat exchanger front end and rear end temperature detection control unit, each hot-air blower gradient wind pushing temperature Detection & Controling unit, grain storage section grain position control unit, each drying section cereal temperature and water content detection and control unit, each drying section steam drain exhaust steam temperature, humidity and the Detection & Controling unit of steam discharge wind speed, cooling section cereal temperature Detection & Controling unit, drying tower row's grain part grain measurement of moisture content realizes with control unit, and carry out Based Intelligent Control based on PLC.The present invention is applicable to grain drying tower intelligent power saving and controls.
Description
Technical field
The present invention relates to grain drying tower intelligent power saving control field.
Background technology
At present, grain drying tower there is problems in that
1, drying tower provides the air stove of thermal source it cannot be guaranteed that run under economical combustion state, causes fuel and electric energy wave
The problem taken.
2, the temperature of heat exchanger can not get reasonably controlling, and produces potential safety hazard and heat exchanger cannot ensure service life
Problem.
3, each drying section cannot realize ladder temperature air-supply problem.
4, grain storage section grain position can not get reasonably controlling, and uses stylus video to observe or limit switch controls, often go out
Existing grain emits wind less, the problem that grain emits grain more.
5, the temperature of each drying section grain, humidity can not get instant reasonably control and display, artificial at solid food machine outlet
The solid food result detected is the most delayed, and there is dries quantity cannot ensure, dries grain by rule of thumb, wastes substantial amounts of
Heat energy and the problem of electric energy.
6, cold wind section grain temperature is without display and control, and the grain temperature practical situation being not bound with cold wind section reasonably controls,
The problem creating electric energy and grain loss.
7, the solid food moisture content after drying can not get showing timely and controls, and solid food moisture content fluctuation range is big, every year
Cause the problem that the biggest storage grain loses.
8, drying record to be write by people, anthropic factor is big, it is impossible to the problem ensureing its accuracy.
Summary of the invention
The present invention is to solve the problems referred to above that existing grain drying tower exists, thus provides a kind of grain drying tower
Intelligent energy-saving control system.
Grain drying tower intelligent energy-saving control system, it includes coal bunker control unit in air stove, hearth of hot-blast stove temperature
Detection control unit, combustion chamber draft value Detection & Controling unit, heat exchanger front end and rear end temperature detection control unit,
Each hot-air blower gradient wind pushing temperature Detection & Controling unit, grain storage section grain position control unit, each drying section cereal temperature and
Water content detection and control unit, the Detection & Controling unit of each drying section steam drain exhaust steam epidemic disaster and steam discharge wind speed,
Cooling section cereal temperature Detection & Controling unit, drying tower row grain part grain measurement of moisture content and control unit, PLC1,
Computer 2, display 3, attention device and logging 8;
Described PLC1 and computer 2 duplex communication;The display signal output part of computer 2 and the display letter of display 3
Number input connects;Described attention device is connected with the alarm signal input of computer 2;
In air stove, coal bunker control unit includes that 11, delay circuit 12 of laser tube, up stop hall sensing switch
14, descending stop hall sensing switch 15, enumerator 16 and weight sensor 17;
Described laser tube 11 is arranged on the side of coal bunker hoisting frame, and the laser level that laser tube 11 sends is propagated;On
Whereabouts point hall sensing switch 14 is arranged on the upper end of coal bunker hoisting frame;Descending stop hall sensing switch 15 is arranged on
The lower end of coal bunker hoisting frame;Up stop hall sensing switch 14 and descending stop hall sensing switch 15 are used to sense
Answer coal bunker position;The induced signal outfan of described up stop hall sensing switch 14 is with the up stop of PLC1 suddenly
You connect by induced signal input;The induced signal outfan of descending stop hall sensing switch 15 is descending with PLC1's
Stop hall sensing signal input part connects;The count signal outfan of described PLC1 and the count signal of enumerator 11
Input connects;Weight sensor 17 is arranged in coal bunker, and described weight sensor 17 is for measuring the weight of coal bunker;
The weight signal outfan of described weight sensor 17 is connected with the weight signal input of PLC1;The coal bunker of PLC1
Signal is driven to drive coal bunker 13 to lift by a delay circuit 12;
The three-phase power input end of coal bunker 13 accesses civil power by the control switch of an A.C. contactor;A number exchange connects
The control signal input of tentaculum control coil is connected with an A.C. contactor control signal outfan of PLC1;
Hearth of hot-blast stove temperature detection control unit includes 22, No. two frequency conversions of 21, converter of fire box temperature sensor
Device 23 and No. three converters 24;
Fire box temperature sensor 21 is arranged in the fire box of air stove, is used for detecting hearth of hot-blast stove temperature;
A number inverter control signal outfan of PLC1 and the frequency change control signal input of a converter 22 connect;
No. two inverter control signal outfans of PLC1 and the frequency change control signal input of No. two converters 23 connect;
No. three inverter control signal outfans of PLC1 and the frequency change control signal input of No. three converters 24 connect;
The three-phase power input end of aerator 4 accesses civil power by the control switch of No. two A.C. contactors;Described No. one
Converter 22 is associated between three phase mains and aerator 4 by the control switch series of No. three A.C. contactors;
The three-phase power input end of fire grate 5 accesses civil power by the control switch of No. four A.C. contactors;Described No. two changes
Frequently device 23 is associated between three phase mains and fire grate 5 by the control switch series of No. five A.C. contactors;
The three-phase power input end of air-introduced machine 6 accesses civil power by the control switch of No. six A.C. contactors;Described No. three
Converter 24 is associated between three phase mains and air-introduced machine 6 by the control switch series of No. seven A.C. contactors;
The control signal input of No. two A.C. contactor control coils and No. two A.C. contactor control signals of PLC1
Outfan connects;The control signal input of No. three A.C. contactor control coils and No. three A.C. contactor controls of PLC1
Signal output part processed connects;The control signal input of No. four A.C. contactor control coils exchanges with No. four of PLC1 and connects
Tentaculum control signal outfan connects;The control signal input of No. five A.C. contactor control coils with No. five of PLC1
A.C. contactor control signal outfan connects;The control signal input of No. six A.C. contactor control coils and PLC1
No. six A.C. contactor control signal outfans connect;The control signal input of No. seven A.C. contactor control coils
It is connected with No. seven A.C. contactor control signal outfans of PLC1;
Combustion chamber draft value Detection & Controling unit includes probe tube 31 and negative pressure transmitter 32;
One end of described probe tube 31 is arranged in the fire box of air stove, and by the other end of probe tube 31
It is positioned at outside air stove, and is connected with the signal input part of negative pressure transmitter 32 by cooling pipe;Described negative pressure transmitter
The negative pressure pick-up signal output part of 32 is connected with the negative pressure signal input of PLC1;
Heat exchanger front end and rear end temperature detection control unit include two heat-exchange temperature sensors 41, one of them heat exchange
Temperature sensor 41 is arranged on heat exchanger front end, for detecting the temperature of heat exchanger front end, this heat-exchange temperature sensor 41
Heat exchanger head temperature signal output part be connected with the heat exchanger head temperature signal input part of PLC1;
Another heat-exchange temperature sensor 41 is arranged on heat exchanger rear end, for detecting the temperature of exchanger heat air compartment, and should
The heat exchanger rear end temperature signal outfan of heat-exchange temperature sensor 41 inputs with the heat exchanger rear end temperature signal of PLC1
End connects;
Each hot-air blower gradient wind pushing temperature Detection & Controling unit include hot blast temperature sensor 51, position sensor 52,
No. four converters 53, electric pushrod drive circuit 54, electric pushrod 56 and cold wind air distribution plate 55;
The three-phase power input end of hot-air blower 7 accesses civil power by the control switch of No. eight A.C. contactors;Described hot blast
Machine 7 is associated between civil power and hot-air blower 7 by the control switch series of No. nine A.C. contactors;
The control signal input of No. eight A.C. contactor control coils and No. eight A.C. contactor control signals of PLC1
Outfan connects;The control signal input of No. nine A.C. contactor control coils and No. nine A.C. contactor controls of PLC1
Signal output part processed connects;
The electric pushrod of PLC1 drives the drive control signal input of signal output part and electric pushrod drive circuit 54
Connect;Described electric pushrod drive circuit 54 drives electric pushrod to work;Described electric pushrod drives cold wind air distribution plate
55 motions, described cold wind air distribution plate 55 is for controlling the aperture of the hot-blast outlet of hot-air blower 7;
Grain storage section grain position control unit includes that resistance is outwarded winding pass 61 and No. two delay circuits 64;Hinder pass 61 of outwarding winding and be arranged on storage
The grain position peak of grain section, is used for detecting grain position;Described resistance outward winding close 61 on-off model outfan and PLC1
Resistance rotation switching value signal input part connects;
The three-phase power input end of upper grain motor accesses civil power by the control switch of No. ten A.C. contactors;No. ten exchanges
A number control signal input of catalyst control coil 65 and No. ten A.C. contactor control signal outfans of PLC1
Connect;No. two control signal inputs of No. ten A.C. contactor control coils are by No. two delay circuits and the ten of PLC1
Number A.C. contactor control signal outfan connects;
Each drying section cereal temperature and water content detection all include one group of Temperature and Humidity unit 71, this group with control unit
Temperature and Humidity unit all includes a dryer section temperature sensor and a dryer section humidity sensor, dryer section temperature
Sensor is for detecting the temperature of drying section;Dryer section humidity sensor is used for detecting drying section humidity;
The signal output part of dryer section temperature sensor is connected with a road dryer section temperature signal input of logging 8;
The moisture signal outfan of dryer section humidity sensor is connected with a road dryer section moisture signal input of logging 8;
Each drying section steam drain exhaust steam epidemic disaster includes one group of dryer section row with the Detection & Controling unit of steam discharge wind speed
Steam ports detector unit 81, this group dryer section detector unit all includes that an exhaust steam temperature sensor, an exhaust steam humidity pass
Sensor and a dry air velocity transducer, exhaust steam temperature sensor is for detecting the temperature of drying section steam drain;Exhaust steam is wet
Degree sensor is for detecting the humidity of drying section steam drain;Exhaust steam air velocity transducer is for detecting the wind of drying section steam drain
Speed;
The signal output part of exhaust steam temperature sensor is connected with a road exhaust steam temperature signal input of logging 8;Exhaust steam
The signal output part of humidity sensor is connected with a road exhaust steam moisture signal input of logging 8;Exhaust steam wind speed senses
The signal output part of device is connected with a road exhaust steam wind velocity signal input of logging 8;
Cooling section cereal temperature Detection & Controling unit includes cooling section temperature sensor 101 and cooling blower converter
102;
The three-phase power input end of cooling blower 16 accesses civil power by cooling blower converter 102;
Cooling section temperature sensor 101 is arranged at cooling section, is used for detecting cooling section cereal temperature, described cooling section
The signal output part of temperature sensor 101 is connected with the cooling section temperature signal input of logging 8;
The logging signal output part of described logging 8 is connected with the logging signal input part of PLC1;
The cooling blower frequency variation signal outfan of PLC1 connects with the frequency change control signal input of cooling blower converter 102
Connect;
Drying tower row grain part grain measurement of moisture content and control unit include two online grain moisture content detection instrument 91 and
Row's grain converter 9;Described two online grain moisture content detection instrument 91 are used to grain in detection row's grain motor 10
Moisture;
Row's grain motor 10 accesses three phase mains by row's grain converter 9;The frequency change control signal of described row's grain converter 9
Input is connected with the frequency change control signal outfan of PLC1.
The beneficial effect that the present invention obtains:
1, solve grain drying tower grain to have no basis in drying course, the problem drying grain according to personal experience.
2, solving grain and do not have rule in drying course, do not have data to look into, see by people, hands is touched, tooth is stung and commented matter
Problem.
3, solve the traditional grain drying tower waste problem to fuel and electric energy, reduce drying cost.
4, solving in traditional grain drying course, solid food moisture content is unstable, storage grain loss problem.
5, solving traditional grain drying course cannot monitor and problem of management, this control system is every in can storing three months
All data that moment drying tower runs, a key prints, and embodies grain solid food in drying course with the form of form and produces
Amount, solid food moisture, coal consumption, power consumption, furnace temperature, pathogenic wind-warm, etc. all be dried relevant information.
6, thorough protection drying plant is properly functioning, violations of rules and regulations hard stop occurs, extension device service life,
Reduce maintenance cost, it is ensured that safety in production.
The present invention has filled up China and the world blank in grain heat-drying field of intelligent control, is particularly suitable for China's main grain
Producing region environment, weather and voltage pulsation major region use, be truly realized the energy-saving and emission-reduction of grain heat-drying, low-carbon economy,
The needs of Green Development.
The present invention is compared with Traditional control technology, and main performance of the present invention embodies as follows:
1, saving coal-fired more than 10% on year-on-year basis, through actual measurement, as a example by producing 600 tons of drying towers daily, every day saves coal-fired 3.5
About Dun.
2, save electric energy more than 20% on year-on-year basis, through actual measurement, as a example by producing 600 tons of drying towers daily, save electricity 2000 every day
More than degree.
3, going out machine solid food moisture Control on year-on-year basis interval 14% ± 0.5, meansigma methods solid food moisture content is 14%, and degree of stability carries
High by 1%.
4, reducing labor intensity, minimizing personnel put into more than 20%.
Accompanying drawing explanation
Fig. 1 is the control principle schematic diagram of coal bunker control unit in air stove;
Fig. 2 is the control principle schematic diagram of hearth of hot-blast stove temperature detection control unit;
Fig. 3 is the control principle schematic diagram of combustion chamber draft value Detection & Controling unit;
Fig. 4 is the control principle schematic diagram of heat exchanger front end and rear end temperature detection control unit;
Fig. 5 is the control principle schematic diagram of each hot-air blower gradient wind pushing temperature Detection & Controling unit;
Fig. 6 is the control principle schematic diagram of grain storage section grain position control unit;
Fig. 7 is the control principle schematic diagram of each drying section cereal temperature and water content detection and control unit;
Fig. 8 is each drying section steam drain exhaust steam epidemic disaster and the control principle of the Detection & Controling unit of steam discharge wind speed shows
It is intended to;
Fig. 9 is the control principle schematic diagram of cooling section cereal temperature Detection & Controling unit;
Figure 10 is drying tower row's grain part grain measurement of moisture content and control unit
Figure 11 is storage and printing portion control principle schematic diagram;
Figure 12 is air-introduced machine, aerator, fire grate, the electrical structure schematic diagram of two row's grain motors access three phase mains;
Figure 13 is three hot-air blowers, air-cooler, the electrical structure schematic diagram of coal bunker access three phase mains;
Figure 14 is sorting screen, clean promote electrode, two solid food conveying motors access the electrical structure signal of three phase mains
Figure;
Figure 15 is slagging-off, the electrical structure schematic diagram of two solid food conveying motors access three phase mains;
Detailed description of the invention
Detailed description of the invention one, combine Fig. 1 to Figure 15 this detailed description of the invention, grain drying tower intelligent power saving control are described
System processed, it includes coal bunker control unit in air stove, hearth of hot-blast stove temperature detection control unit, combustion chamber draft value
Detection & Controling unit, heat exchanger front end and rear end temperature detection control unit, the detection of each hot-air blower gradient wind pushing temperature
With control unit, grain storage section grain position control unit, each drying section cereal temperature and water content detection and control unit, respectively dry
Dry section steam drain exhaust steam epidemic disaster and the Detection & Controling unit of steam discharge wind speed, cooling section cereal temperature Detection & Controling
Unit, drying tower row's grain part grain measurement of moisture content and control unit, PLC1, computer 2, display 3, attention device
With logging 8;
Described PLC1 and computer 2 duplex communication;The display signal output part of computer 2 and the display letter of display 3
Number input connects;Described attention device is connected with the alarm signal input of computer 2;
In air stove, coal bunker control unit includes that 11, delay circuit 12 of laser tube, up stop hall sensing switch
14, descending stop hall sensing switch 15, enumerator 16 and weight sensor 17;
Described laser tube 11 is arranged on the side of coal bunker hoisting frame, and the laser level that laser tube 11 sends is propagated;On
Whereabouts point hall sensing switch 14 is arranged on the upper end of coal bunker hoisting frame;Descending stop hall sensing switch 15 is arranged on
The lower end of coal bunker hoisting frame;Up stop hall sensing switch 14 and descending stop hall sensing switch 15 are used to sense
Answer the position of coal bunker;The induced signal outfan of described up stop hall sensing switch 14 and the up stop of PLC1
Hall sensing signal input part connects;Under the induced signal outfan of descending stop hall sensing switch 15 and PLC1
Whereabouts point hall sensing signal input part connects;The counting letter of the count signal outfan of described PLC1 and enumerator 11
Number input connects;Weight sensor 17 is arranged in coal bunker, and described weight sensor 17 is for measuring the weight of coal bunker
Amount;The weight signal outfan of described weight sensor 17 is connected with the weight signal input of PLC1;PLC1's
Coal bunker drives signal to drive coal bunker 13 to lift by a delay circuit 12;
The three-phase power input end of coal bunker 13 accesses civil power by the control switch of an A.C. contactor;A number exchange connects
The control signal input of tentaculum control coil is connected with an A.C. contactor control signal outfan of PLC1;
Hearth of hot-blast stove temperature detection control unit includes 22, No. two frequency conversions of 21, converter of fire box temperature sensor
Device 23 and No. three converters 24;
Fire box temperature sensor 21 is arranged in the fire box of air stove, is used for detecting hearth of hot-blast stove temperature;
A number inverter control signal outfan of PLC1 and the frequency change control signal input of a converter 22 connect;
No. two inverter control signal outfans of PLC1 and the frequency change control signal input of No. two converters 23 connect;
No. three inverter control signal outfans of PLC1 and the frequency change control signal input of No. three converters 23 connect;
The three-phase power input end of aerator 4 accesses three phase mains by the control switch of No. two A.C. contactors;Described
A number converter 22 is associated between three phase mains and aerator 4 by the control switch series of No. three A.C. contactors;
The three-phase power input end of fire grate 5 accesses three phase mains by the control switch of No. four A.C. contactors;Described two
Number converter 23 is associated between three phase mains and fire grate 5 by the control switch series of No. five A.C. contactors;
The three-phase power input end of air-introduced machine 6 accesses three phase mains by the control switch of No. six A.C. contactors;Described
No. three converters 24 are associated between three phase mains and air-introduced machine 6 by the control switch series of No. seven A.C. contactors;
The control signal input of No. two A.C. contactor control coils and No. two A.C. contactor control signals of PLC1
Outfan connects;The control signal input of No. three A.C. contactor control coils and No. three A.C. contactor controls of PLC1
Signal output part processed connects;The control signal input of No. four A.C. contactor control coils exchanges with No. four of PLC1 and connects
Tentaculum control signal outfan connects;The control signal input of No. five A.C. contactor control coils with No. five of PLC1
A.C. contactor control signal outfan connects;The control signal input of No. six A.C. contactor control coils and PLC1
No. six A.C. contactor control signal outfans connect;The control signal input of No. seven A.C. contactor control coils
It is connected with No. seven A.C. contactor control signal outfans of PLC1;
Combustion chamber draft value Detection & Controling unit includes probe tube 31 and negative pressure transmitter 32;
One end of described probe tube 31 is arranged in the fire box of air stove, and by the other end of probe tube 31
It is positioned at outside air stove, and is connected with the signal input part of negative pressure transmitter 32 by cooling pipe;Described negative pressure transmitter
The negative pressure pick-up signal output part of 32 is connected with the negative pressure signal input of PLC1;
Heat exchanger front end and rear end temperature detection control unit include two heat-exchange temperature sensors 41, one of them heat exchange
Temperature sensor 41 is arranged on heat exchanger front end, for detecting the temperature of heat exchanger front end, this heat-exchange temperature sensor 41
Heat exchanger head temperature signal output part be connected with the heat exchanger head temperature signal input part of PLC1;
Another heat-exchange temperature sensor 41 is arranged on heat exchanger rear end, for detecting the temperature of exchanger heat air compartment, and should
The heat exchanger rear end temperature signal outfan of heat-exchange temperature sensor 41 inputs with the heat exchanger rear end temperature signal of PLC1
End connects;
Each hot-air blower gradient wind pushing temperature Detection & Controling unit include hot blast temperature sensor 51, position sensor 52,
No. four converters 53, electric pushrod drive circuit 54, electric pushrod 56 and cold wind air distribution plate 55;
The three-phase power input end of hot-air blower 7 accesses three phase mains by the control switch of No. eight A.C. contactors;Described
Hot-air blower 7 is associated between three phase mains and hot-air blower 7 by the control switch series of No. nine A.C. contactors;
The control signal input of No. eight A.C. contactor control coils and No. eight A.C. contactor control signals of PLC1
Outfan connects;The control signal input of No. nine A.C. contactor control coils and No. nine A.C. contactor controls of PLC1
Signal output part processed connects;
The electric pushrod of PLC1 drives the drive control signal input of signal output part and electric pushrod drive circuit 54
Connect;Described electric pushrod drive circuit 54 drives electric pushrod to work;Described electric pushrod drives cold wind air distribution plate
55 motions, described cold wind air distribution plate 55 is for controlling the aperture of the hot-blast outlet of hot-air blower 7;
Grain storage section grain position control unit includes that resistance is outwarded winding pass 61 and No. two delay circuits 64;Hinder pass 61 of outwarding winding and be arranged on storage
The grain position peak of grain section, is used for detecting grain position;Described resistance outward winding close 61 on-off model outfan and PLC1
Resistance rotation switching value signal input part connects;
The three-phase power input end of upper grain motor accesses three phase mains by the control switch of No. ten A.C. contactors;No. ten
A number control signal input of A.C. contactor control coil exports with No. ten A.C. contactor control signals of PLC1
End connects;No. two control signal inputs of No. ten A.C. contactor control coils pass through No. two delay circuits and PLC1
No. ten A.C. contactor control signal outfans connect;
Each drying section cereal temperature and water content detection all include one group of Temperature and Humidity unit 71, this group with control unit
Temperature and Humidity unit all includes a dryer section temperature sensor and a dryer section humidity sensor, dryer section temperature
Sensor is for detecting the temperature of drying section;Dryer section humidity sensor is used for detecting drying section humidity;
The signal output part of dryer section temperature sensor is connected with a road dryer section temperature signal input of logging 8;
The moisture signal outfan of dryer section humidity sensor is connected with a road dryer section moisture signal input of logging 8;
Each drying section steam drain exhaust steam epidemic disaster includes one group of dryer section row with the Detection & Controling unit of steam discharge wind speed
Steam ports detector unit 81, this group dryer section detector unit all includes that an exhaust steam temperature sensor, an exhaust steam humidity pass
Sensor and a dry air velocity transducer, exhaust steam temperature sensor is for detecting the temperature of drying section steam drain;Exhaust steam is wet
Degree sensor is for detecting the humidity of drying section steam drain;Exhaust steam air velocity transducer is for detecting the wind of drying section steam drain
Speed;
The signal output part of exhaust steam temperature sensor is connected with a road exhaust steam temperature signal input of logging 8;Exhaust steam
The signal output part of humidity sensor is connected with a road exhaust steam moisture signal input of logging 8;Exhaust steam wind speed senses
The signal output part of device is connected with a road exhaust steam wind velocity signal input of logging 8;
Cooling section cereal temperature Detection & Controling unit includes cooling section temperature sensor 101 and cooling blower converter
102;
The three-phase power input end of cooling blower 16 accesses three phase mains by cooling blower converter 102;
Cooling section temperature sensor 101 is arranged at cooling section, is used for detecting cooling section cereal temperature, described cooling section
The signal output part of temperature sensor 101 is connected with the cooling section temperature signal input of logging 8;
The logging signal output part of described logging 8 is connected with the logging signal input part of PLC1;
The cooling blower frequency variation signal outfan of PLC1 connects with the frequency change control signal input of cooling blower converter 102
Connect;
Drying tower row grain part grain measurement of moisture content and control unit include two online grain moisture content detection instrument 91 and
Row's grain converter 9;Described two online grain moisture content detection instrument 91 are used to grain in detection row's grain motor 10
Moisture;
Row's grain motor 10 accesses three phase mains by row's grain converter 9;The frequency change control signal of described row's grain converter 9
Input is connected with the frequency change control signal outfan of PLC1.
Detailed description of the invention two, this detailed description of the invention and the grain drying tower intelligent power saving described in detailed description of the invention one
The difference of control system is, fire box temperature sensor 21 uses diamond spar temperature sensor to realize.
Detailed description of the invention three, this detailed description of the invention and the grain drying tower intelligent power saving described in detailed description of the invention one
The difference of control system is, probe tube 31 uses one section of DN20 pipeline to realize.
Detailed description of the invention four, this detailed description of the invention and the grain drying tower intelligent power saving described in detailed description of the invention one
The difference of control system is, logging 8 realizes duplex communication by 485 buses with PLC1.
Detailed description of the invention five, this detailed description of the invention and the grain drying tower intelligent power saving described in detailed description of the invention one
The difference of control system is, it also includes printer 13, the printer signal input of described printer 13 and calculating
The printer signal outfan of machine 2 connects.
Detailed description of the invention six, this detailed description of the invention and the grain drying tower intelligent power saving described in detailed description of the invention one
The difference of control system is, it also includes wireless communication module 14 and smart mobile phone 15, described wireless communication module
The wireless signal input of 14 or outfan export with the wireless signal of computer 2 or input is connected, smart mobile phone 15
And radio communication between wireless communication module 14.
Detailed description of the invention seven, this detailed description of the invention and the grain drying tower intelligent power saving described in detailed description of the invention one
The difference of control system is, PLC1 be model be the central processing unit of 6ES7-200.
Detailed description of the invention eight, this detailed description of the invention and the grain drying tower intelligent power saving described in detailed description of the invention one
The difference of control system is, online grain moisture content detection instrument 91 be model be the online grain of LDS-3H
Moisture content detector.
Detailed description of the invention nine, this detailed description of the invention and the grain drying tower intelligent power saving described in detailed description of the invention one
The difference of control system is, logging 8 be model be the logging of TD200-A32BS2V0T4.
Detailed description of the invention ten, this detailed description of the invention and the grain drying tower intelligent power saving described in detailed description of the invention one
The difference of control system is, exhaust steam air velocity transducer be model be the exhaust steam air velocity transducer of Gs20.
(1) in air stove coal bunker work automatically control:
This part is automatically to be started (or spring touch switch manually boots), coal by the full coal amount laser detection of coal bunker
Bucket up stroke stop Hall element, upper coal quantity record the device groups such as accounting and coal bunker down stroke stop Hall automatically
Become.
Operation principle: after the coal of coal bunker is filled, is arranged on the light quilt that pipe is sent by the laser of coal bunker lifting frame body side
After coal blocks, the switch motion within laser flip flop, transmission triggering enabling signal, to PLC, (is filtered after PLC time delay
Interference except other factors) start coal bunker elevator electric motor starting, coal bunker is up starts upper coal.When coal bunker only walks to
During point, when coal bunker bucket body is close to the up stroke stop hall sensing switch being arranged on herein, this switch outgoing position signal
Stop up run signal to PLC, PLC output, make delay process simultaneously and (set aside some time, prevent time mistake of unloading coal
Short, the coal of coal bunker unloads the cleanest), after delay time arrives, PLC starts down stroke catalyst, makes coal motor anti-
Turning to realize descending function, at this moment coal bunker will leave top dead centre Hall element, when coal bunker leaves after top dead center, suddenly
That switch motion, sends into a numeration signal to PLC, has shown once upper coal task.When the weight by the coal that often struggles against
Inputing to host computer, the weight just having automatically generated upper coal is how many kilograms and adds up.When coal bunker only comes downwards to down
Hall switch in this is installed during point export lower dead center signal that puts in place and stop descending catalyst to PLC, PLC
Output, coal bunker will stop at bottom dead center position, and whole upper coal task terminates, and standby prepare for going up coal next time.
(2) hearth of hot-blast stove temperature Detection & Controling:
Fire box temperature detection is to be completed by the diamond spar temperature sensor being arranged in fire box, this temperature sensing
The resistance to temperature value of device is 0-1600 degree, and equity output 0-20ma current signal gives cyclelog PLC, in PLC
Part is two parts, and a part shows fire box temperature value on computer monitor.Another part be set in inside PLC
Fire box temperature value compare.
Fire box temperature controls: the height of fire box temperature depends on the coal-fired state at stove chamber inner combustion, coal-fired in burner hearth
Fired state by three conditional decisions.(1) effect of aerator: aerator here functions as combustion-supporting effect, air-supply
Amount number determine the size of combustion-supporting effect.(2) effect of fire grate coal-supplying amount: the size of fire grate speed determines to be sent
Enter the number of fire box's Coal-fired capacity.(3) effect of air-introduced machine: air-introduced machine completes the flue dust that will produce after coal combustion
And heat energy delivers to follow-up function, complete to cooperatively form the task of combustion chamber draft with aerator simultaneously.In this furnace temperature control
During system, when coal-supplying amount does not changes much, Control for Kiln Temperature is played leading work by aerator, and fire grate speed is the
Two, the effect of air-introduced machine is taken second place, thus major control here to as if air output and the fire grate coal supply of aerator
Speed.
Control for Kiln Temperature principle: first have to furnace temperature is set calibration, the fire box temperature value of setting is stored in programme-control
In device PLC.The temperature signal that on-the-spot fire box temperature sensor detects is also fed into cyclelog PLC, with PLC
The temperature of internal calibration compares, and controls the combustion air volume of aerator by result of the comparison and fire grate is delivered coal speed.When
When the temperature value of Site Detection is less than setting value, aerator strengthens combustion air volume, and fire grate speed-raising simultaneously strengthens coal-fired throwing
Enter amount.The furnace temperature arrived when Site Detection after certain time is more than setting result, and PLC exports reduce-speed sign, order
Aerator and fire grate all slow down.Such control mode instead of original method for controlling furnace temperature, achieves well control
As a result, after how using, conclude that the such temperature control mode of use, fire box temperature can be controlled within ± 5 degree.
(3) combustion chamber draft value Detection & Controling:
The detection of combustion chamber draft value is by being arranged on the sampling of the DN20 pipeline of hearth combustion chamber interior, then by drawing
Being connected with negative pressure transmitter after pipe cooling, fairlead one end connects DN20 probe tube, and the other end connects negative pressure transmitter.
Negative pressure transmitter one end is connected with fairlead, and the other end communicates with air, thus goes out in negative pressure transmitter interior contrast
The pressure reduction of test point correspondence atmospheric pressure is how many pa (handkerchief pressure units), the electric current letter corresponding by pressure transmitter output
Number 0-20ma.After this combustion chamber draft value current signal sends into cyclelog PLC, inside PLC, it is divided into two
Point, a part is sent into computer monitor and is shown the size of current combustion chamber draft value, and another road is admitted to PLC with in advance
The calibration value being stored in compares calculating.
The control of combustion chamber draft: in order to describe the problem, first has to illustrate why to be controlled the negative pressure of burner hearth.
The coal-fired purpose at stove chamber inner combustion is that the chemical energy that fire coal is stored in inside is converted into heat energy by the way of burning in fact
Process, the height of this process conversion ratio depend on coal-fired in burner hearth the artificial burning situation provided relevant, this
Burning situation is exactly the negative pressure value of burner hearth, and in order to reach efficient conversion efficiency, being necessary for will be to combustion chamber draft value
Reasonably control.
Practice have shown that: mark coal is that between negative 20pa to negative 150pa, the burn-off rate of coal is best in combustion chamber draft, and heat energy converts
Rate is the highest, we term it economical combustion point.But in fact it is currently used in the negative pressure of the air stove in terms of drying tower
Value is all between negative 300pa to negative 500pa, away from economical combustion point, creates a large amount of coal-fired waste.Burner hearth is born
The size of pressure value is jointly acted on air-introduced machine by aerator and determining, as long as controlling the air quantity of induced draft
System, just can reach to control the effect of combustion chamber draft value size, to realize saving the purpose of energy reduction production cost.
Hearth vacuum control principle is: firstly the need of setting a standard burner hearth negative pressure value (target in cyclelog
Value), with Site Detection to negative pressure value compare with desired value, when Site Detection value be less than standard value time, air inducing
Power traction air quantity increases, and the blow rate required reduces.When Site Detection value is more than standard value, reduce absorbing quantity, increase the blow rate required,
All the time by hearth vacuum control within critical field, it is achieved economical combustion.When practical operation in view of absorbing quantity mistake
Little can produce blocking heat exchanger smoke pipe and fire box temperature carrying amount deficiency problem, need the upper and lower limit air quantity of air-introduced machine is entered
Rower is fixed, makes air-introduced machine work in the interval range of demarcation.Air-introduced machine upper limit air flow calibration mainly considers combustion chamber draft
Ensure (the hot air blower Power Limitation because of actually used).Air-introduced machine lower limit air quantity is necessary to ensure that two indexs, one
In being to ensure that burner hearth, heat energy reasonably delivers to heat exchanger, is not result in burner hearth overtemperature.Two be to ensure that heat exchanger smoke pipe not by
Blocking.Between the job requirement that air-introduced machine is special, in use in order to keep the most stable of negative pressure value in burner hearth,
There is provided good burning condition for fire coal, used primary and secondary control theory, i.e. air-introduced machine under the driving of converter,
Making upper and lower limit section operation, aerator is made full frequency band and is dynamically adjusted, and the guarantee 70% of combustion chamber draft value is come by aerator
Determine.
(4), fire grate coal supply speed and the control of furnace temperature:
The size of fire grate coal supply speed determine coal-fired input amount number, after above-mentioned (2,3) condition determines, stove
The height of temperature depend under equal conditions coal-fired injected volume number.Control for Kiln Temperature: cyclelog PLC is controlling
While aerator realizes Control for Kiln Temperature, synchronize fire grate coal supply speed is controlled, when furnace temperature is less than setting value,
PLC output signal for faster is to converter, transducer drive fire grate Accelerating running.Otherwise during higher than setting value.
(5) temperature sensor of heat exchanger front and back ends shows and controls:
The temperature sensor mounted purpose in heat exchanger front end is to ensure that heat exchanger will not use by overtemperature, in order to avoid damaging heat exchanger.
The temperature value sending into cyclelog PLC firstly the need of heat exchanger front end limits, and routine is 850 degree, works as temperature
Degree exceedes after this value first early warning 5 times, while early warning, the even deceleration of aerator, fire grate, reduces heat exchange
Device front end heat energy supply values, air-introduced machine speeds up to the fast cooling of heat exchanger, such as heat exchange temperature after 5 early warning
Still exceeding higher limit, cyclelog is forced to stop air stove peripheral equipment, while stopping air stove work, and order
Air-introduced machine works with maximal rate, within the temperature of heat exchanger being dropped to safety range with the shortest time.
The effect of end sensor and control after heat exchanger: the heat exchanger rear end i.e. space of hot air chamber, deliver to the temperature of drying tower
Degree i.e. derives from this, and can the height of drying chamber temperature be protected, and determining grain heat-drying temperature fluctuation range has many
Greatly, perfect condition, under air stove heat capacity is more than drying tower requirement capability premise, hot air chamber should be kept as far as possible
Temperature is constant temperature, and this has the biggest positive role to grain heat-drying.The temperature of hot air chamber derives from heat exchanger, heat exchanger
Temperature height depend on that air-introduced machine takes the capacity of water of heat and the height of ambient temperature (because changing to hearth of hot-blast stove
Hot cell temperature and ambient temperature linear proportional relation, ambient temperature height heat exchanger cooling effect is little, changes
Hot device tube wall temperature is high, Heat Room temperature i.e. height, otherwise on the contrary).
Heat Room temperature detection is mounted with that plug-type temperature sensor PT100 exchange hot cell is monitored, the result of detection
Sending into cyclelog PLC, be divided into two parts inside PLC, a part is delivered to computer monitor heat exchanging temperature and is entered
Row display, the target temperature that another road sets with PLC compares, and exports to driving air inducing by PLC with comparative result
Machine work converter, make air-introduced machine according to Heat Room to temperature height requirement, ask for relative heat to air stove,
To realize thermostatic control.
(6), hot-air blower ladder temperature wind pushing temperature Detection & Controling:
Hot-air blower is the transporting equipment that the heat energy of Heat Room flows to each dryer section of drying tower, and grain obtains in drying tower
With the heat energy source of dry needs in this, the detection of each drying section hot blast temperature is by being arranged on hot-air blower air-supply pipeline
On temperature sensor complete, the temperature signal that the temperature sensor on every road will detect sends into main controller PLC,
Each road signal is distributed into two tunnels by PLC, and a road is used as to show over the display, and respective temperature control system is delivered on another road,
To complete the independence control of each drying section temperature.
The control of hot-air blower ladder temperature air-supply: in fact more than two hot-air blowers use same Heat Room temperature to realize ladder
Temperature air-supply cannot realize, but grain is in drying course, and the difference of drying position residing for grain, to temperature
The demand of degree is the most different, needs laminated gradient to blow, in order to reach to carry different drying temperature, Wo Men to grain
Each hot-air blower is mounted with cold wind air distribution plate, electric pushrod, dragline type position sensing on the hot-air channel of Heat Room
Device.Utilizing the mode that air distribution plate aperture is increased or decreased that each hot-air blower carries out cold wind modulation, every hot-air blower is sent
Hot blast be all via cold wind modulate after temperature.Control principle: first have to target setting temperature in central controller
Value, then Site Detection to temperature value compare with desired value, the temperature value arrived when Site Detection is less than desired value
Time, central controller output adjusts signal, drives electric pushrod to turn down cold wind air distribution plate, to reduce the intervention of cold wind
Amount improves temperature, and instead this is contrary.Cold wind plate adjust number be according to the position of current cold wind plate by central controller
Putting and result that the difference of Current Temperatures and target temperature is computed determines, time actually used, electronic plate works in dynamic
State adjusts state, and temperature control sensitivity is fine.
(7) grain storage section grain position controls:
Grain storage section grain position is the most crucial, and this link is related to grain heat-drying quality, yield, energy consumption problem.Grain before
The method that position controls to use has hydrargyrum position switch to control, video camera manually sees two kinds of methods of control.Mercoid switch controls
Often there is the malfunctioning situation of mercoid switch in grain position, causes king-tower to promote out of control, or does not goes up grain, and grain storage section runs wind,
The upper uncontrolled grain situation that emits of grain, a lot of drying tower manufacturers are mounted with mercoid switch, after using a period of time to user
The most all remove.Currently the majority uses camera video Artificial Control, and this control mode is simple, but also exists
Anthropic factor, increases labor intensity, and once people looks after less than also there will be the situation emitting wind, emitting grain, so this portion
Divide and suddenly wait to need a kind of safe and reliable, easy to operate control mode to occur.Here we provide a kind of to hinder rotation
Switch as detecting element, with PLC processor for controlling element, with catalyst for driving the control mode of king-tower motor,
After application, effect is ideal.
Control principle is: resistance is outwarded winding and closes the high point of accumulation in grain position being installed on grain storage section, when resistance rotation switch rotary, and resistance rotation
Switch to PLC output one food shortage signal, after the auxiliary device of grain in PLC self-inspection is all normal, sends upper grain instructs to connecing
Tentaculum, the work of king-tower lifting motor starts upper grain.After a period of time, resistance is outwarded winding and is closed by upper full grain resistance rotation, and resistance is outwarded winding
Closing and export the full signal of a grain to PLC, PLC stops the output to upper grain catalyst, and upper grain motor quits work, this time
Upper grain terminates.Along with the normal work of drying tower, the grain position of grain storage section starts to move down, when grain position leave resistance outward winding pass time,
Hindering the Guan Ci that outwards winding and export a food shortage signal to PLC, at this moment PLC is not to output signal to grain catalyst immediately, and
It is to make delay process.Purpose is that the duration user of time delay is according to practical situation in order to prevent upper grain equipment from starting frequently
And determine (time delay time a length of how long arbitrarily set on computer monitor, very convenient), delay time arrives
After reaching, repeat above-mentioned upper grain process.PLC makees three step process after receiving the signal hindering pass feeding of outwarding winding, the
One step, shows grain position on computer monitor.Second step is delayed startup, and the 3rd step is that sequential control provides for upper grain
The miscellaneous equipment of service.
Sequence control procedure is: outwards winding when resistance and closes output food shortage signal, after via controller time delay, first starts as cleaning
Machine provides the conveyer belt in grain source, and when grain arrives cleaner inside, controller starts sorting screen and cleaning fan, so
After be the conveyer belt promoting upper grain for king-tower, finally start king-tower and promote upper grain motor and start upper grain, this process is anti-
Only equipment idle running, reaches energy-conservation purpose.When the pass output full signal of grain is outwarded winding in resistance, PLC orderly closedown, first stop for
The conveyer belt of grain on cleaner, stops conveyer belt work after time time delay several seconds, and then time delay stops cleaner, connects
Time delay of getting off stops as the conveyer belt of grain on upper tower, after after time delay, stop king-tower lifting motor, the mesh of whole process
Be to prevent upper grain the said equipment next time time band carry and start, in the service life of extension device, reduce maintenance cost.
(8) each drying section cereal temperature and water content detection and control:
Grain, in drying course, needs to be changed grain variant position in drying tower by tender feeling condition and moisture content
Understand timely and control, guarantee grain heat-drying quality, yield.The most thoroughly solve tradition drying
Tower detection is delayed and does not control data blind baking problem, it is achieved that precognition pre-control, intelligent management.The equipment of this part is joined
Being set to, the online sensor of grain epidemic disaster, for realizing concentrated collection signal, bus exports, and has selected 40 tunnels to patrol
Inspection instrument is as relaying.
1), each drying section grain temperature and moisture content detect: every each dryer section be mounted with temperature and relative humidity (or other
Online grain temperature, temperature or moisture content detector) synchronize the epidemic disaster of this drying section grain is detected, will
The signal warm, wet detected delivers to be installed on 40 road loggings of drying tower side, patrols and examines what use was patrolled and examined by one
Mode receives and transmits 40 tunnel heat transfer agent collections, and each test point information is given centre by 485 buses by logging
Reason device, then shows the epidemic disaster of each point grain on computer monitor.Chilling temperature illness participates in the later stage 10
The control of part.
2), each drying section grain epidemic disaster controls: grain temperature, temperature sensor that each drying section is installed detect
Data, be all sent to searching instrument, by searching Yi Jiangge road signal change after, in 485 communication bus are sent to
Central processor, in central processing unit, the epidemic disaster value with this section of grain standard compares, when Site Detection arrives
Cereal temperature is less than standard value, and when moisture content is higher than standard value, central processing unit exports the temperature control of this drying section hot-air blower
Plate adjusts signal, and making the drying temperature of this section raise (general rising 5-8 degree) increases baked strength, through one section
After time, after the temperature of this section of grain and humidity reach standard, central processing unit output adjusts signal, extensive by this section
Arrive normal condition again, in this way, all the time each drying section grain is reached difference and require standard, to ensure grain
It is attained by preferable drying requirement in each drying section, keeps the fluency dried and linear.
(9) each drying section steam drain (horn shape box) exhaust steam epidemic disaster and the Detection & Controling of steam discharge wind speed:
In order to be further known to the grain drying regime in each drying section, indirectly understand grain moisture content in drying tower
Change, it is ensured that the complete and reliability of each drying section grain epidemic disaster detection work, weary in each drying section of drying tower
Being assembled with temperature and relative humidity and exhaust steam air velocity transducer in vapour outlet, the exhaust steam to discharging monitors constantly.
The temperature that exhaust steam is discharged and humidity represent the degree that grain obtains being dried in dry environments, indirectly to a certain extent
Understand grain height of moisture content in tower.When actually used, with normal grain at epidemic disaster Data Comparison herein,
Discharge exhaust steam temperature low, high humidity, illustrate that grain dries moisture in this place bigger than normal, should be by the hardness reinforcement of drying schedule
Degree, otherwise on the contrary.Utilize this principle that exhaust steam epidemic disaster is detected, be conducive to grain drying feelings in drying section tower
Condition is understood and controls.
1), exhaust steam epidemic disaster and wind speed measurement.Pass by being arranged on the epidemic disaster in each exhaust steam outlet and wind speed
Three groups of data that Site Detection is arrived by sensor send into logging, after logging is changed, send into central authorities by 485 buses
These data are allocated by processor at processor, and a road shows on computer screen, and another road is sent into and controlled
System.
2), the control of epidemic disaster and wind speed is discharged in exhaust steam.Control purpose be keep under normal conditions rational steam discharge temperature,
Humidity and wind speed, in the dry run of grain, grain is played two effects by hot air flow: 1, for the grain dried
Thering is provided heat energy, hot air flow is sent to the surrounding of grain in drying section by hot-air blower and heats grain, makes grain
After food is heated, internal moisture obtains fast vaporizing, is dried.2, the water vapour produced after being heated by grain is discharged
Outside tower, change to new air and continue to be dried.
The exhaust steam epidemic disaster that each drying section is discharged and blast velocity control are by this drying section grain being increased or decreased by temperature
And the method drying air-flow, indirectly the exhaust steam epidemic disaster discharged and wind speed are controlled.Temperature control and drying section tower
Interior grain epidemic disaster controls co-controlling and the hot-air blower temperature control plate of this section, the order of control be grain temperature in tower,
Humid control is preferential, and exhaust steam temperature, temperature control to help out.
Control theory is: after drying section grain epidemic disaster reaches established standards, and steady-state operation a period of time, weary
Steam temperature, temperature control to start monitoring, and it is near under identical moisture content that control starting point is based on the kind of this grain, unit weight
It is standard that phase discharges exhaust steam epidemic disaster data, when the temperature of steam discharge is less than standard value, when humidity is more than standard value, weary
Vapour epidemic disaster is devoted oneself to work with wind speed control system, increases and dries temperature and increase drying wind speed, and in making tower, grain is fast
Prompt drop water, on the contrary on the contrary, after reaching control standard, system exits control.Control principle is: firstly the need of in
Central processor established standards value, as the basis of examination, will detect three groups of on-the-spot epidemic disaster and air velocity transducer
Data deliver to logging, logging will send into central processing unit through 485 buses after conversion, will be each by central processing unit
While information shows on computer monitor, compare with the standard value being previously set, with result of the comparison, control
The equipment of system correspondence carries out interval (Minimum requirements for needed for ensureing grain heat-drying) and dynamically adjusts.
In order to the meaning of controlled wind speed is described, first have to know the wind speed reduction to grain moisture content during grain heat-drying
Play any effect on earth, then we just should have a understanding to the moisture of grain.
Grain is made up of numerous granule, and the moisture of grain is exactly the moisture of each granule, and the moisture of each granule is
Being made up of two kinds of moisture, one is Free water (or free water).Two is hygroscopic water (or combining water).These two kinds of moisture
The combination of son constitutes the moisture of grain, is referred to as the moisture content of grain, i.e. grain moisture content percentage ratio, its concept
In being the grain of Unit Weight, moisture accounts for the percentage ratio of gross mass.
Two kinds of moisture contained by grain are really essentially different.Free water, Free water is aqueous water, daily with us
The drinking water and the domestic water that use are the same.Free water is the water being free between grain molecule, and this water is at ice
The above temperature of point i.e. starts carburation by evaporation, and along with the rising of temperature, vaporization rate is accelerated, and this hydrone is easy to
Discharging, this moisture only produces impact to the weight of grain, and the volume of grain is not had much impacts.Its feature is
Temperature is the highest, and vaporization rate is the fastest, evaporation rate and temperature line relationship, and this moisture is easy to after leaving grain
Returning between the molecule of grain, this is the backwater that it has often been said, the environment that number and the grain of backwater amount are stored has
Closing, this is to be dried the equilibrium moisture content principle learned.
Hygroscopic water, hygroscopic water is not aqueous water, and this moisture is chemical molecular structure, so a lot of its being called artificial
Learn water.Hygroscopic water is absorption moisture on grain molecular cell wall, and this water is fettered by molecular core electron institute,
Being not easy to peel off, removing this moisture needs condition and time, and this moisture is little to the weight of grain, but right
(after Semen Glycines water in daily life, volume becomes big, and after moisture removal, volume returns to former very greatly in the volume impact of grain
State, this is the effect of hygroscopic water), the feature of this moisture is, moisture is difficult to be discharged, and discharges the speed of moisture
Degree and temperature and time have relation, are not linear relationship with temperature, are linear relationships with the time, and this moisture is discharged
After be difficult to returning.
In sum, in the drying course of grain, Free water is easy to discharge, and the discharge of hygroscopic water is one and delays
Slow process, needs the longer time, and in drying course, as long as the air velocity of baking needed reaches a subduing the wind syndrome
Speed, excessive wind speed does not has essential meaning to the drying accelerating grain.
It is understood that the composition of grain moisture content and feature, it is therefore necessary to the wind speed of grain heat-drying is controlled, to reach
The purpose at optimum state is controlled with energy consumption (drying cost) to by the dries quantity of grain, yield.
Understand it is understood that three necessary conditions are during grain heat-drying through above: (1) temperature, will
Grain contained humidity accelerates vaporization key element.(2) time, the moisture vaporization contained by grain requires time for, particularly sorption
Water.(3) wind speed, transfers thermal energy to grain, and the steam that grain produces vaporization simultaneously is discharged outside tower.These three bar
Part determines dries quantity and the yield of grain.In these three condition, temperature plays a decisive role, because vaporization rate
Size and temperature have direct relation, as long as can ensure the grain grain temperature control dried within safety range (typically
Demarcate grain by temperature less than 80 degree), improve as far as possible and dry temperature.Next to that the time, the evaporation of all moisture needs
Time, heat energy transmission and steam discharges outside tower and is required for the time, and this is why grain speed of movement in drying tower
Spend the slowest reason (general translational speed is rice/1200 second).Wind speed is here the 3rd, as long as its function is
Can the heat energy transmission that grain heat-drying needs be put in place, the steam produced after being vaporized by grain discharges outer (the general wind speed 4 of tower
More than meter per second), and currently used drying tower steam discharge wind speed is general all between 6-10 rice, creates too much
Energy waste, need control.
(10), cooling section cereal temperature Detection & Controling.It has been recognized that the cooling wind speed of cooling section is the bigger the better,
Grain temperature is the lowest more good, and this is a mistaken ideas in fact.All things has individual optimum, is not the bigger the better, be not the least more
Good, but be just best, the grain temperature control of cooling section is also such.
It is new ideas to cooling section grain temperature control, is the places that do not account for of forefathers, here We conducted supplementary.
Drying tower cooling section grain temperature Detection & Controling are built upon, at the end of grain to moisture here has basically reached drying
Requiring index, grain is further dried by air quantity does not has tangible effect, simply lowers the temperature grain, assists precipitation
And with.
When grain is cooled down by the cooling air quantity of currently used drying tower cooling section, do not account for the change of ambient temperature
Change the impact of grain temperature and the relation of grain storage.Give an example, when ambient temperature is positive 20 degree, dry the dry of grain
Use a benchmark when dry benchmark is with negative 20 degree, that is when ambient temperature is positive 20 degree, dry grain and make
The temperature that drying condition and ambient temperature are negative 20 degree be the same, the cooling air quantity of cooling section feeding is the same,
The most here two problems have been occurred as soon as, 1, be ambient temperature when being positive 20 degree, no matter cooling section blower fan is how
Blow, cooling section grain temperature all without less than 20 degree, reason be the cooling medium of cooling section be extraneous air, extraneous sky
Gas is positive 20 degree, you can not by grain temperature drop less than less than 20 degree, cooling blower be air cooling rather than
Refrigeration plant, send great wind the most useless, simply the waste to electric power energy.Even if you try every possible means grain temperature drop
Below ambient temperature, can grain go out machine after need to deposit under environmental condition, mutually balance former according to temperature
Reason, its temperature meeting nature is with ambient temperature equilibrium to a certain extent.2, when ambient temperature is for negative 20 degree or lower,
At this moment go out the cereal temperature of machine with close to freezing point or lower, in this case cooling section is sent into great air quantity and all do not have
Have in all senses, simply waste electric energy, increase and dry cost.In reality, people always will go out when drying grain to winter
The grain of machine mouth is put into indoor slow a period of time at survey water, it is simply that because the cereal temperature going out machine is too low, examine close to freezing point
The inaccurate reason of grain moisture content measured.
Cooling section grain temperature detector is surveyed: be mounted with temperature sensor PT100 at cooling section, will through logging
Cooling section temperature data delivers to central controller, and these data are delivered to computer monitor and carried out temperature by central controller one tunnel
Display, the ambient temperature that another road and the environment temperature sensor being arranged on outdoor detect compares, with the two ratio
Difference relatively gives central controller, central controller export control instruction, controls the converter of cooling section work, by
Transducer drive cooling blower, makes cooling blower produce the grain temperature formation relation that air quantity arrives with ambient temperature and Site Detection,
Such result is that the duty of per moment cooling blower is all controlled by ambient temperature and cereal temperature, i.e. ensures
Grain security goes out machine, has saved again production cost.
(11), drying tower row's grain part grain measurement of moisture content and control.Row's grain part of drying tower be drying tower
Metasomite, grain will go out machine, i.e. finish whole drying course to here.The function of this part is to control grain
Discharge the speed of drying tower, to ensure that grain goes out the moisture of machine and reach the required standards, this part row's grain speed fast
Slowly affect the speed of grain under whole tower, also directly affect the drying effect of above each layer grain, so this link is whole
The most important thing of individual drying course.Traditional control method be within every 30 minutes, manually go to take at grain discharging opening a number of go out
Machine grain carries out moisture inspection, when the grain moisture content that inspection is arrived is more than desired value, reduces row's grain speed and extends grain
Drying time in drying tower.Increase row's grain speed when the moisture of inspection to grain is less than desired value, reduce grain
Drying time in tower, the adjustment gone round and begun again every day, not only labor intensity is big, and detects the most delayed, relies on
Experience dries grain, and anthropic factor is big, and grain heat-drying quality cannot ensure.
In order to solve this problem, we are mounted with two set online grain moisture content inspections at the machine outlet of grain drying tower
Survey instrument, the solid food in discharge machine is monitored constantly, if drying tower structure is bilateral row's grain, each online
Moisture content detector controls the draining crop mechanism of correspondence respectively, if drying tower is integrated row's grain structure, takes two online
Formula grain moisture content detection instrument meansigma methods, controls row's grain speed.Control principle is: before this by computer monitor centering
Central processor and online grain measurement of moisture content instrument carry out moisture demarcation, control than if desired for the grain moisture content going out machine
14% ± 0.5, it is 14% that desired value is just pinpointed by that, when the grain moisture content that ice detector detects is more than 14%, by this
Field data feeds back to central processing unit, and treated device compares with desired value, when central processing unit result of the comparison
More than desired value 0.2% time, the data examining each drying section to send into, decide whether export reduce-speed sign discharge grain motor
Make deceleration to process, otherwise on the contrary.The principle examining other drying section moisture size is: Site Detection result and following knot
The anticipation of fruit, prevents out the fluctuation of machine solid food moisture content excessive, affects the quality of solid food.Such as Site Detection solid food moisture content
With more than 14.5%, stopping anticipation energy merit, row's grain speed is carried out by predetermined speed, when solid food moisture is less than 13.8%
Anticipation energy merit starts, the data examining each drying section to send into, and decides whether that exporting signal for faster discharge grain motor makees to accelerate
Processing, when solid food moisture is less than 13.5, stop anticipation energy merit, row's grain speed is carried out by predetermined speed, so controls
Principle be to prevent solid food moisture content too high or too low, with keep bake out qualified solid food.
(12) storage and printing function:
All above function and the realization of control, be all by central processing unit after desired value compares with Site Detection value
The result of the control carried out, during controlling, central processing unit synchronizes these data to be stored, including air stove
Upper coal number of times, upper coal tonnage amount, fire grate speed, aerator operating frequency, electric current, voltage, air inducing in unit interval
Machine operating frequency, electric current, voltage, certain moment fire box temperature, heat exchange temperature, hot air chamber temperature, each hot-air blower are joined
Temperature plate aperture, each hot-air blower operating frequency, electric current, voltage, each hot-air blower wind pushing temperature, each drying section grain temperature,
Humidity, each drying section steam drain epidemic disaster and wind speed, cooling section cereal temperature, cooling blower operating frequency, electric current,
Voltage, certain moment solid food moisture content, row's grain motor operating frequency, electric current, voltage and each motor running parameter and 24
Storage and the printings such as hour electric energy meritorious consumptions, reactive power, power factor, thoroughly solve the error manually made a copy of
And anthropic factor.
(13) remotely and mobile phone controls function:
Use network technology to achieve very-long-range strange land to control and mobile phone control function.Enterprise administrator is the most wherein
Drying tower working condition in using can be understood, it may be necessary to strange land manipulates, adjust the fortune of drying tower
Row state, it is achieved equipment optimum state works.Use surfing Internet with cell phone function above manipulation function equally completely, side
Just when and where the condition of production of family can be had at fingertips by user.
What in air stove, coal bunker worked automatically controls: (1) actuating section.There are two schemes: one is that use is light-operated to pipe
Or photoswitch.Two is to use touch-switch.(2) coal bunker upper and lower stroke position detection part.There are two schemes:
One is to use Hall element detection.Two is to use travel switch to carry out position control.
Fire box temperature detects, as long as the temperature range 0-1600 degree of temperature sensor, has the product that pick-up exports.
Combustion chamber draft detects, and the interface diameter of negative pressure transmitter bears 500pa at 6-8mm, negative pressure range at 0-.
Heat exchanger head temperature detects, and temperature sensor temperature range 0-800 degree has pick-up output function.
Regenerator volume and temperature sensor afterwards, temperature range bear 40 degree to positive 200 degree, have pick-up output function
?.
In drying section tower, the detection of grain epidemic disaster uses with exhaust steam epidemic disaster and passes with a epidemic disaster is integrated
Sensor, job requirement: temperature bears 40 degree to positive 120 degree, relative humidity 0-100%, two road 0-20ma electric current letters
Number output, accuracy of detection is high, any a product of good stability failure rate is low.
Exhaust steam anemobiagraph.The anemobiagraph place of production that this control system uses: the Shijiazhuang City Asia roc limited public affairs of Radix Saposhnikoviae measuring and controlling equipment
Department, model: Gs20, to survey demeanour and enclose 0-30 meter per second, analog quantity 0-20ma electric current exports, and has self-heating for antifreeze
Function.Possesses the like product of above-mentioned functions.
Logging.This control system uses 32 road loggings, the place of production: the excellent section in Sichuan automation control appliance is limited
The TD200-A32BS2V0T4 product that company produces, this product polling rate is 0.5s mono-, ambient operating temperature
Negative 40, to positive 80 degree, possess RS485 output function.All possess other of above-mentioned functions and patrol and examine product.
The product for Siemens 6ES7-200 series that central processing unit PLC: this control system uses.
The online detector of grain moisture content: the online grain measurement of moisture content instrument used in this control system is Qingpu Shanghai
The online moisture monitor of LDS-3H that oasis detecting instrument company limited produces, it is possible to use Shanghai Jia Shi electronics corporation
The HYD-ZS grain on-line moisture determination instrument produced.
Converter.This control system uses the Kechuang board converter that Shandong Kechuang produces, it is possible to use Ou Ke is electric
The Ou Ke board converter that company produces.
The main frame that the present invention uses is association's board technical grade computer, other brand industrial machine.
The printer that the present invention uses is Canon 2700 color printer, other brand printer.
Claims (10)
1. grain drying tower intelligent energy-saving control system, is characterized in that: it includes coal bunker control unit, heat in air stove
Wind furnace fire box temperature detection control unit, combustion chamber draft value Detection & Controling unit, heat exchanger front end and the inspection of rear end temperature
Survey control unit, each hot-air blower gradient wind pushing temperature Detection & Controling unit, grain storage section grain position control unit, respectively dry
Section cereal temperature and water content detection and control unit, the detection of each drying section steam drain exhaust steam epidemic disaster and steam discharge wind speed
With control unit, cooling section cereal temperature Detection & Controling unit, drying tower row's grain part grain measurement of moisture content and control
Unit, PLC (1), computer (2), display (3), attention device and logging (8);
Described PLC (1) and computer (2) duplex communication;The display signal output part of computer (2) and display
(3) display signal input part connects;Described attention device is connected with the alarm signal input of computer (2);
In air stove, coal bunker control unit includes laser tube (11), delay circuit (12), a up stop Hall
Inductive switch (14), descending stop hall sensing switch (15) sum counter (16);
Described laser tube (11) is arranged on the side of coal bunker hoisting frame, and the laser water that laser tube (11) sends is flated pass
Broadcast;Up stop hall sensing switch (14) is arranged on the upper end of coal bunker hoisting frame;Descending stop hall sensing switchs
(15) lower end of coal bunker hoisting frame it is arranged on;Up stop hall sensing switch (14) and descending stop hall sensing
Switch (15) is used to sense the position of coal bunker;The induced signal of described up stop hall sensing switch (14) is defeated
Go out end to be connected with the up stop hall sensing signal input part of PLC (1);Descending stop hall sensing switch (15)
Induced signal outfan be connected with the descending stop hall sensing signal input part of PLC (1);Described PLC (1)
Count signal outfan be connected with the count signal input of enumerator (11);The coal bunker of PLC (1) drives signal
Coal bunker (13) is driven to lift by a delay circuit (12);
The three-phase power input end of coal bunker (13) accesses civil power by the control switch of an A.C. contactor;A number friendship
The control signal input of stream catalyst control coil is with an A.C. contactor control signal outfan of PLC (1) even
Connect;
Hearth of hot-blast stove temperature detection control unit include fire box temperature sensor (21), converter (22),
No. two converters (23) and No. three converters (24);
Fire box temperature sensor (21) is arranged in the fire box of air stove, is used for detecting hearth of hot-blast stove temperature;
A number inverter control signal outfan of PLC (1) and the frequency change control signal input of a converter (22)
End connects;No. two inverter control signal outfans of PLC (1) and the frequency change control signal of No. two converters (23)
Input connects;No. three inverter control signal outfans of PLC (1) and the VFC of No. three converters (24)
Signal input part connects;
The three-phase power input end of aerator (4) accesses civil power by the control switch of No. two A.C. contactors;Described one
Number converter (22) is associated between three phase mains and aerator (4) by the control switch series of No. three A.C. contactors;
The three-phase power input end of fire grate (5) accesses civil power by the control switch of No. four A.C. contactors;Described No. two
Converter (23) is associated between three phase mains and fire grate (5) by the control switch series of No. five A.C. contactors;
The three-phase power input end of air-introduced machine (6) accesses civil power by the control switch of No. six A.C. contactors;Described three
Number converter (24) is associated between three phase mains and air-introduced machine (6) by the control switch series of No. seven A.C. contactors;
The control signal input of No. two A.C. contactor control coils controls letter with No. two A.C. contactors of PLC (1)
Number outfan connects;No. three of the control signal input of No. three A.C. contactor control coils and PLC (1) exchange and connect
Tentaculum control signal outfan connects;The control signal input of No. four A.C. contactor control coils is with PLC's (1)
No. four A.C. contactor control signal outfans connect;The control signal input of No. five A.C. contactor control coils with
No. five A.C. contactor control signal outfans of PLC (1) connect;The control letter of No. six A.C. contactor control coils
Number input is connected with No. six A.C. contactor control signal outfans of PLC (1);No. seven A.C. contactor control lines
The control signal input of circle is connected with No. seven A.C. contactor control signal outfans of PLC (1);
Combustion chamber draft value Detection & Controling unit includes probe tube (31) and negative pressure transmitter (32);
One end of described probe tube (31) is arranged in the fire box of air stove, and by probe tube (31)
The other end is positioned at outside air stove, and is connected with the signal input part of negative pressure transmitter (32) by cooling pipe;Described
The negative pressure pick-up signal output part of negative pressure transmitter (32) is connected with the negative pressure signal input of PLC (1);
Heat exchanger front end and rear end temperature detection control unit include two heat-exchange temperature sensors (41), one of them
Heat-exchange temperature sensor (41) is arranged on heat exchanger front end, for detecting the temperature of heat exchanger front end, this heat-exchange temperature
The heat exchanger head temperature signal output part of sensor (41) and the heat exchanger head temperature signal input part of PLC (1)
Connect;
Another heat-exchange temperature sensor (41) is arranged on heat exchanger rear end, for detecting the temperature of exchanger heat air compartment,
The heat exchanger rear end temperature signal outfan of this heat-exchange temperature sensor (41) and the heat exchanger rear end temperature of PLC (1)
Signal input part connects;
Each hot-air blower gradient wind pushing temperature Detection & Controling unit includes hot blast temperature sensor (51), position sensing
Device (52), No. four converters (53), electric pushrod drive circuit (54), electric pushrod (56) and cold wind are joined
Wind plate (55);
The three-phase power input end of hot-air blower (7) accesses civil power by the control switch of No. eight A.C. contactors;Described heat
Blower fan (7) is associated between three phase mains and hot-air blower (7) by the control switch series of No. nine A.C. contactors;
The control signal input of No. eight A.C. contactor control coils controls letter with No. eight A.C. contactors of PLC (1)
Number outfan connects;No. nine of the control signal input of No. nine A.C. contactor control coils and PLC (1) exchange and connect
Tentaculum control signal outfan connects;
The electric pushrod of PLC (1) drives the drive control signal of signal output part and electric pushrod drive circuit (54)
Input connects;Described electric pushrod drive circuit (54) drives electric pushrod work;Described electric pushrod drives cold
Wind air distribution plate (55) moves, and described cold wind air distribution plate (55) is used for controlling the hot-blast outlet of hot-air blower (7)
Aperture;
Grain storage section grain position control unit includes that resistance is outwarded winding pass (61) and No. two delay circuits (64);Hinder pass (61) of outwarding winding
It is arranged on the grain position peak of grain storage section, is used for detecting grain position;Described resistance outward winding pass (61) on-off model output
Hold the resistance with PLC (1) to revolve switching value signal input part to be connected;
The three-phase power input end of upper grain motor accesses civil power by the control switch of No. ten A.C. contactors;No. ten exchanges
A number control signal input of catalyst control coil and No. ten A.C. contactor control signal outfans of PLC (1)
Connect;No. two control signal inputs of No. ten A.C. contactor control coils are by No. two delay circuits and PLC (1)
No. ten A.C. contactor control signal outfans connect;
Each drying section cereal temperature and water content detection all include one group of Temperature and Humidity unit (71) with control unit,
This group Temperature and Humidity unit all includes a dryer section temperature sensor and a dryer section humidity sensor, dryer section
Temperature sensor is for detecting the temperature of drying section;Dryer section humidity sensor is used for detecting drying section humidity;
The signal output part of dryer section temperature sensor is connected with a road dryer section temperature signal input of logging (8);
The moisture signal outfan of dryer section humidity sensor is connected with a road dryer section moisture signal input of logging (8);
Each drying section steam drain exhaust steam epidemic disaster includes one group of dryer section row with the Detection & Controling unit of steam discharge wind speed
Steam ports detector unit (81), this group dryer section detector unit all includes that an exhaust steam temperature sensor, an exhaust steam are wet
Degree sensor and a dry air velocity transducer, exhaust steam temperature sensor is for detecting the temperature of drying section steam drain;Weary
Vapour humidity sensor is for detecting the humidity of drying section steam drain;Exhaust steam air velocity transducer is used for detecting drying section steam drain
Wind speed;
The signal output part of exhaust steam temperature sensor is connected with a road exhaust steam temperature signal input of logging (8);Weary
The signal output part of vapour humidity sensor is connected with a road exhaust steam moisture signal input of logging (8);Exhaust steam wind speed
The signal output part of sensor is connected with a road exhaust steam wind velocity signal input of logging (8);
Cooling section cereal temperature Detection & Controling unit includes cooling section temperature sensor (101) and cooling blower converter
(102);
The three-phase power input end of cooling blower (16) accesses civil power by cooling blower converter (102);
Cooling section temperature sensor (101) is arranged at cooling section, is used for detecting cooling section cereal temperature, described cooling
The signal output part of section temperature sensor (101) is connected with the cooling section temperature signal input of logging (8);
The logging signal output part of described logging (8) is connected with the logging signal input part of PLC (1);
The cooling blower frequency variation signal outfan of PLC (1) is defeated with the frequency change control signal of cooling blower converter (102)
Enter end to connect;
Drying tower row's grain part grain measurement of moisture content includes two online grain moisture content detection instrument (91) with control unit
With row's grain converter (9);Described two online grain moisture content detection instrument (91) are used to detection row's grain motor (10)
The moisture of interior grain;
Row's grain motor (10) accesses civil power by row's grain converter (9);The frequency conversion control of described row's grain converter (9)
Signal input part processed is connected with the frequency change control signal outfan of PLC (1).
2. require the grain drying tower intelligent energy-saving control system described in 1 according to claim, it is characterised in that burner hearth temperature
Degree sensor (21) uses diamond spar temperature sensor to realize.
3. require the grain drying tower intelligent energy-saving control system described in 1 according to claim, it is characterised in that probe tube
(31) one section of DN20 pipeline is used to realize.
4. require the grain drying tower intelligent energy-saving control system described in 1 according to claim, it is characterised in that logging
(8) duplex communication is realized by 485 buses with PLC (1).
5. require the grain drying tower intelligent energy-saving control system described in 1 according to claim, it is characterised in that it also wraps
Include the printer signal of printer (13), the printer signal input of described printer (13) and computer (2)
Outfan connects.
6. require the grain drying tower intelligent energy-saving control system described in 1 according to claim, it is characterised in that it also wraps
Include wireless communication module (14) and smart mobile phone (15), the wireless signal input of described wireless communication module (14)
Or outfan exports with the wireless signal of computer (2) or input is connected, smart mobile phone (15) and radio communication mold
Radio communication between block (14).
7. require the grain drying tower intelligent energy-saving control system described in 1 according to claim, it is characterised in that PLC (1)
Be model be the central processing unit of 6ES7-200.
8. require the grain drying tower intelligent energy-saving control system described in 1 according to claim, it is characterised in that online
Grain moisture content detection instrument (91) be model be the online grain moisture content detection instrument of LDS-3H.
9. require the grain drying tower intelligent energy-saving control system described in 1 according to claim, it is characterised in that logging
(8) be model be the logging of TD200-A32BS2V0T4.
10. require the grain drying tower intelligent energy-saving control system described in 1 according to claim, it is characterised in that exhaust steam
Air velocity transducer be model be the exhaust steam air velocity transducer of Gs20.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510163269.6A CN104729276B (en) | 2015-04-08 | 2015-04-08 | Grain drying tower intelligent energy-saving control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510163269.6A CN104729276B (en) | 2015-04-08 | 2015-04-08 | Grain drying tower intelligent energy-saving control system |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104729276A CN104729276A (en) | 2015-06-24 |
CN104729276B true CN104729276B (en) | 2016-09-14 |
Family
ID=53453410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510163269.6A Active CN104729276B (en) | 2015-04-08 | 2015-04-08 | Grain drying tower intelligent energy-saving control system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104729276B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105300089B (en) * | 2015-11-27 | 2017-06-30 | 山东农业大学 | A kind of crop dryer blanking amount detecting device based on ARM |
CN105532863A (en) * | 2015-12-30 | 2016-05-04 | 哈尔滨东宇农业工程机械有限公司 | Continuous autocontrol cereal drying tower |
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 |
CN106125660A (en) * | 2016-06-28 | 2016-11-16 | 黑龙江北谷创新科技发展有限公司 | The control system of grain heat-drying and drying control method thereof |
CN107166938B (en) * | 2017-05-16 | 2020-07-31 | 安徽辰宇机械科技有限公司 | Material drying method, device and system |
CN110715544A (en) * | 2018-10-11 | 2020-01-21 | 中核沽源铀业有限责任公司 | Tunnel type microwave dryer distributing device |
CN113280610B (en) * | 2021-05-31 | 2022-06-07 | 安徽华谷机械科技有限公司 | Grain drying-machine of gradient dehydration |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4178494B2 (en) * | 2000-03-09 | 2008-11-12 | 株式会社サタケ | Grain drying equipment |
CN2482040Y (en) * | 2001-05-31 | 2002-03-13 | 陈贵洲 | Multifunctional monitor for hot air dryer |
CN101248814A (en) * | 2008-03-27 | 2008-08-27 | 李安民 | Foodstuffs electric drying apparatus |
KR100968966B1 (en) * | 2008-04-23 | 2010-07-14 | 한성공업 주식회사 | Rice circulating concurrent-flow dryer |
US9109835B2 (en) * | 2011-11-21 | 2015-08-18 | Suncue Company Ltd | Method and control system for controlling supply of heat energy from a furnace to mulitple dryers |
CN103564041B (en) * | 2013-11-19 | 2014-09-10 | 杨庆询 | Quality-guaranteeing and energy-saving drying machine for grains |
CN204514004U (en) * | 2015-04-08 | 2015-07-29 | 张立志 | Grain drying tower intelligent energy-saving control system |
-
2015
- 2015-04-08 CN CN201510163269.6A patent/CN104729276B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN104729276A (en) | 2015-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104729276B (en) | Grain drying tower intelligent energy-saving control system | |
CN108477660B (en) | Intelligent double-power tobacco curing barn | |
CN201733771U (en) | Drum type hot cake stove | |
CN102334543A (en) | Intelligent grain baking device based on solar energy | |
CN204514004U (en) | Grain drying tower intelligent energy-saving control system | |
CN204479245U (en) | A kind of H type low-level (stack-gas) economizer leak detecting device | |
CN109059433A (en) | A kind of lumber kiln and its control method | |
CN206001862U (en) | A kind of electromagnetic induction heating high temperature air dehydrator | |
CN201615681U (en) | Drying oven | |
CN107788110A (en) | A kind of method for drying cereal and system | |
CN202072726U (en) | Heat accumulating type hardening furnace | |
CN206012011U (en) | A kind of intaglio printing fan delivery automaton | |
CN208871972U (en) | A kind of lumber kiln | |
CN105910087A (en) | Energy-saving system of boiler | |
CN100451510C (en) | Air flow jetting type material drying machine | |
CN205066327U (en) | Air can high temperature dehumidification drying -machine | |
CN202166047U (en) | Energy-saving and environment-protecting biomass heating furnace | |
CN209495412U (en) | Dehumidify heating system in power station under a kind of collection prosecutor formula | |
CN204460297U (en) | A kind of counter-burning type numerical control heating boiler | |
CN209484838U (en) | A kind of operator suitable for industrial air heater | |
CN208875276U (en) | A kind of multifunctional assembled grain drying system | |
CN206347580U (en) | A kind of flue gas heat recovery system | |
CN207379346U (en) | Flue gas waste heat recoverer | |
CN206416677U (en) | A kind of follow-on printing equipment air heat energy retracting device | |
CN206958975U (en) | A kind of full-automatic temperature-controlling Enevgy-saving coal-fired 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 | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170417 Address after: 156400 Heilongjiang city of Qitaihe province Qiezihe District No. 72 Yang Yang Street Patentee after: Qitaihe double benefit energy saving Co., Ltd. Address before: 156400 Heilongjiang city of Qitaihe province Qiezihe District 291 Yang Yang Street Patentee before: Zhang Lizhi |
|
TR01 | Transfer of patent right |