CN203597317U - Grain circulating drying system based on gross weight detection - Google Patents
Grain circulating drying system based on gross weight detection Download PDFInfo
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- CN203597317U CN203597317U CN201320823116.6U CN201320823116U CN203597317U CN 203597317 U CN203597317 U CN 203597317U CN 201320823116 U CN201320823116 U CN 201320823116U CN 203597317 U CN203597317 U CN 203597317U
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Abstract
The utility model discloses a grain circulating drying system based on gross weight detection. The system comprises a drier body, an exhaust duct, a draught fan, a burner, a fed/discharged grain elevator, a temperature/humidity probe group and a bin level indicator, and is characterized by further comprising a drier gross weight weighing sensor group, a signal detection and conversion unit and a control display unit, wherein the drier gross weight weighing sensor group is arranged below the drier body, the drier gross weight weighing sensor group is connected to the signal detection and conversion unit, and the signal detection and conversion unit is connected to the control display unit. The drying system disclosed by the utility model is simple and reasonable in structure, and is capable of detecting variation in grain water content in a drying process through detection on gross weight of the drier and grains in the drier, and realizing online control on the grain water content; the drying system is simple to operate, strong in anti-jamming capability and excellent in environmental suitability.
Description
Technical field
The utility model relates to cereal circulation automatic drying system, specifically a kind of cereal cyclic drying system based on total re-detection.
Background technology
The On-Line Control Method of grain drying moisture is most important to the work of grain drying, and the observing and controlling of existing grain drying moisture on-line is on the basis based on capacitance method or the observing and controlling of electric-resistivity method moisture on-line, adopt switch control, classical PID control or modern intelligent predicting control method to carry out.The online monitoring method of moisture is very crucial to the control of moisture in dry run.
Electric-resistivity method moisture on-line observing and controlling principle is to utilize the dependency relation of grain moisture and its resistance value to carry out indirect determination grain moisture, and moisture high resistance is little, and moisture low resistance is large.Cirulation type grain dryer generally uses resistance-type moisture transducer to detect online, generally be arranged on the elevator cylinder sidewall of drying machine, the continuous simple grain of cereal-granules from elevator lifting winnowing pan is scattered falls into a pair of counterrotating roller, and roller is pair of electrodes.When grain is pulverized during by roller, measure the resistance variations curve of material between circular electrode; The extraction of the cereal-granules resistance variations eigenvalue of curve to some the statistics of rolling, obtain its mean value; According to this mean value and moisture correlation function relation (having demarcated in advance), solve the moisture value of cereal; The last control of dry run implementation goal or the process control to cereal according to moisture value.Japan gold, Taiwan three for a long time, the well-known drying machine such as Japan's assistant strain enterprise all adopts the moisture on-line detector of this principle; The long friend of domestic Lee of Agricultural University Of South China has developed the moisture on-line detector of this principle, and has obtained patent of invention (Granted publication number is CN1963478A, and application number is 200610123461.3).The shortcoming that electric-resistivity method moisture on-line detects is: 1. inhomogeneous when grain moisture, while containing more blue or green grain, immature kernel, monitor value error is larger; 2. complex structure, fault is many; 3. while having the foreign matters such as stone when material, easily stop up at roller place, damage roller; 4. can only adaptive character, cereal that granularity is close, as paddy and wheat, when cereal type change, sensor will be done large change; 5. be to damage detection; 6. the accuracy of detection of high moisture grains moisture is low.
Capacitance method moisture on-line observing and controlling principle is that the dependency relation between application grain moisture and electric capacity is carried out indirect determination grain moisture, and moisture high capacitance is large, and the low electric capacity of moisture is little.At present, Cirulation type grain automatic drier adopts capacitance-type sensor for moisture content, it is generally the tubular article with certain capacity, be arranged in the delay section inside or outlet grain stream of Cirulation type grain dryer, grain stream is through capacitor plate, the variation of measuring moisture content according to different its dielectric property differences of grain moisture content.Realize the detection to moisture, then adjust the dry control of cereal according to grain moisture value by secondary meter or host computer.The domestic enterprises such as Jida Science Instrument & Equipment Co., Ltd., Changchun, oasis, Shanghai produce the online moisture detector of this form.Its shortcoming is: 1. install and overhaul inconvenience; 2. accuracy of detection is subject to the impact of environment and cereal humiture, cereal density, grain flow rate large, and accuracy of detection is not high; 3. when cereal is large containing the assorted error of monitoring when high.
Summary of the invention
The purpose of this utility model is to overcome defect of the prior art, provide a kind of simple and reasonable reasonable, by the detection to drying machine and inner cereal gross weight thereof, detect the variation of grain moisture in dry run, and realize On-line Control to grain moisture, simple to operate, antijamming capability strong, the cereal cyclic drying system based on total re-detection of good environmental adaptability.
The purpose of this utility model is to realize like this, this system comprises drying machine main body, exhausting duct, air-introduced machine, burner, turnover grain elevator, drying machine gross weight sensor group, signal test and conversion unit, controls display unit, humiture probe group and bin level indicator, described drying machine gross weight sensor group is arranged on below drying machine main body, drying machine gross weight sensor group connects signal test and conversion unit, and signal test and conversion unit connects controls display unit.
Described drying machine main body comprises auger, tempering portion, drying section, lower body, charging hopper, and the below of described upper auger is to be drying section below tempering portion, tempering portion, and drying section below is provided with lower body, and described lower body comprises draining crop mechanism and lower auger.
Described drying machine main body adopts with turnover grain elevator the form being hinged, in the internal structure being hinged, connecting plate is bolted on drying machine main body with turnover grain elevator together with, interior card and wild card be arranged on turnover grain elevator in, to pass in and out grain elevator fixes, by regulating interior card, the position of wild card regulates the position of turnover grain elevator with respect to tempering portion.
Described air-introduced machine adopts the form that is flexible coupling to be connected with the lower body of drying machine main body 1, and air-introduced machine and exhausting duct link together by soft joint.
Described drying machine gross weight LOAD CELLS group is made up of several LOAD CELLS main bodys, be placed in a underfooting of the lower body of drying machine main body, described LOAD CELLS main body comprises annular isolating pad, resistance strain gage, through hole, small through hole and spoke elastomer, wherein, annular isolating pad is arranged on above spoke elastomer, whole sensor main body is spoke structure, a wheel hub of LOAD CELLS main center position processing, wheel hub position is boss-shaped, at wheel hub central shaft to having through hole, the outside of wheel hub is along the circumferential direction processed with annular recess, uniformly in annular recess be processed with eight small through hole, form eight uniform spokes, resistance strain gage is distributed in the inside of small through hole, stick on the elastomeric sidewall of spoke, spoke outside is rim, plus load acts on the top of wheel hub and the bottom spoke of rim bears shearing force, indirectly measure load by this power.
Described drying machine main body adopts the full mode supporting to be connected with drying machine gross weight LOAD CELLS group with turnover grain elevator, below drying machine main body and turnover grain elevator, connecting bottom board is set, and drying machine gross weight LOAD CELLS group is arranged under connecting bottom board.
Described drying machine main body and turnover grain elevator adopt half connected mode supporting, and drying machine gross weight LOAD CELLS group is directly installed under an angle of lower body.
Described drying section is taked two drying section patterns, and drying section is become to two from one, cancels upper auger simultaneously, increases into grain elephant trunk and buffer, and the grain in turnover grain elevator enters tempering portion by entering grain elephant trunk and buffer.
Advantage of the present utility model and beneficial effect are:
1, the utility model, by the detection to drying machine and inner cereal gross weight thereof, detects the variation of grain moisture in dry run, and realizes the On-line Control to grain moisture, has substituted traditional electric-resistivity method and capacitance method.Overcome the humiture sensitiveness of electric-resistivity method and capacitance method; Improve the precision and stability that moisture on-line detects; Expand the measurement territory that moisture detects in county.Electric-resistivity method and capacitance method reach reluctantly in the accuracy of detection in the low moisture territory of cereal (13%～18%) ± 0.5%, stability is in 80% left and right, and weight method can reach at total moisture territory (13%～35%) can easily reach ± 0.5%, stability is 80%.
2, the utility model for fear of connection, the quality etc. of auxiliary device to the application detecting, utilize the feature of cereal circulation dryer structure and operation, LOAD CELLS group and drying machine main body and appurtenances are hinged and are connected with soft joint, or auxiliary device is all placed on LOAD CELLS group.
3, the utility model owing to being better than in the precision of water content detection universe ± 0.5%, the system and method providing can be provided, to the control of dry run implementation goal, Control for Speed Limitation and constant speed control, not only improve the automaticity of drying machine, and can realize energy-saving drying and guarantee the quality dry, contribute to promote the automation and intelligentification technical merit of China's drying equipment, and exceed the advanced technology country such as Japan, Canada.
The advantages such as that the cereal cyclic drying moisture on-line control system that 4, the utility model provides has is simple in structure, easy for installation, simple to operate, antijamming capability strong, good environmental adaptability, be applicable to the cyclic drying operations of the crops such as corn, paddy rice, wheat, avoid the major defect of prior art.
Accompanying drawing explanation
Fig. 1 is the utility model system architecture diagram.
Fig. 2 is the utility model structural representation.
Fig. 3 is drying machine main body shown in the utility model Fig. 3 and turnover grain Structure of hoist schematic diagram.
Fig. 4 is that in the utility model Fig. 2, A place drying machine main body and elevator are hinged mode structural representation.
Fig. 5 is the bright LOAD CELLS agent structure of the utility model schematic diagram.
Fig. 6 is the utility model LOAD CELLS main body part sectioned view.
Fig. 7 is the road connection of the utility model LOAD CELLS bridge, signal test and conversion, control and flow for displaying figure.
Fig. 8 is the utility model control display unit outline drawing.
Fig. 9 is the investigating method process chart that adopts the utility model system.
Figure 10 is the control block diagram that adopts the investigating method pattern one of the utility model system.
Figure 11 is the moisture change curve schematic diagram that adopts the investigating method pattern one of the utility model system.
Figure 12 is the control block diagram that adopts the investigating method pattern two of the utility model system.
Figure 13 is the moisture change curve schematic diagram that adopts the investigating method pattern two of the utility model system.
Figure 14 is the structural representation of the utility model the second embodiment.
Figure 15 is the structural representation of the third embodiment of the utility model.
Figure 16 is the structural representation of the 4th kind of embodiment of the utility model.
The specific embodiment:
Embodiment 1
Referring to Fig. 1 and Fig. 2, be this practical provided a kind of cereal cyclic drying system case based on total re-detection, but be not limited to this case.
This system comprises drying machine main body 1, exhausting duct 2, and air-introduced machine 3, burner 4, turnover grain elevator 5, drying machine gross weight (containing cereal) LOAD CELLS group 6, signal test and conversion unit 7, controls display unit 8, humiture probe group 9, bin level indicator 10.In operation, cereal to be dried is packed in dry main body 1, drying machine gross weight (containing cereal) sensor group 6 is placed on the LOAD CELLS group 6 of 1 time installation of drying machine main body, drying machine gross weight (containing cereal) LOAD CELLS group 6 links together with signal test and conversion unit 7, and signal test and conversion unit 7 is connected with control display unit 8.Above-mentioned drying machine main body 1, exhausting duct 2, air-introduced machine 3, burner 4, turnover grain elevator 5, drying machine gross weight (containing cereal) LOAD CELLS group 6, signal test and conversion unit 7, control display unit 8, humiture probe group 9, bin level indicator 10 have just formed the whole cyclic drying moisture on-line TT&C system based on the total re-detection of cereal.
In drying machine single unit system, turnover grain elevator can be that a bucket elevator flows to switching device shifter timesharing by one and completes into grain and row's grain, also can complete respectively into grain and put out cereal with two bucket elevator timesharing.
Referring to Fig. 3: drying machine main body 1 comprises upper auger 11, tempering portion 12, drying section 13, lower body 14, charging hopper 17.As shown in the figure, effect is that the grain in turnover grain elevator 5 is transported to tempering portion 11 to described upper auger 11.The below of upper auger 11 is that tempering portion 12, tempering portion 12 are drying section 13 below, and drying section 13 belows are provided with the main part that 14. times bodies 14 of lower body are drying machine single unit systems.Lower body 14 comprises draining crop mechanism 15, lower auger 16, and effect is that the grain in lower body 14 is sent in turnover grain elevator 5 again, completes a drying cycles with this.After completing a drying cycles, grain to be dried enters in turnover grain elevator 5 again by charging hopper 17, enters next cyclic drying process.
As Fig. 1 and Fig. 4, the form of A place for being hinged, drying machine main body 1 adopts with turnover grain elevator 5 form being hinged, and while work to avoid passing in and out grain elevator 5, vibrations exert an influence to the LOAD CELLS group 6 under drying machine main body 1.In the internal structure being hinged, connecting plate 18 is bolted on drying machine main body 1 with turnover grain elevator 5 together with.Interior card 19 and wild card 20 be arranged on turnover grain elevator 5 in, will pass in and out grain elevator 5 fixing, and by card 19 in regulating, the position of wild card 20 regulates and passes in and out grain elevator 5 positions with respect to tempering portion 11.
With Fig. 3, air-introduced machine 3 adopts the form that is flexible coupling to be connected with the lower body 14 of drying machine main body 1 as shown in Figure 1, Figure 2.Be that air-introduced machine 3 links together by soft joint (as belt) with exhausting duct 2.After implementing like this, hinged by turnover grain elevator 5 and drying machine main body 1, air-introduced machine 3 is connected by soft joint and drying machine main body 1, can avoid air-introduced machine 3, the connection that passes in and out grain elevator 5 and the detection of quality influence LOAD CELLS group 5.Here burner 4 is built-in, also can adopt external burner 4 to substitute, and while substituting, dry heat medium must be connected with the lower body 14 of drying machine main body 1 with soft joint by airduct.
As shown in Figure 1, Figure 2 with Fig. 3, drying machine main body 1, exhausting duct 2, air-introduced machine 3, burner 4, when turnover grain elevator 5 is worked, cereal is transported to cereal from bottom to top the upper top of drying machine main body 1 in charging hopper 17 through turnover grain elevator 5, through entering upper auger 11, the cereal of sending here is evenly sprinkled in drying machine main body 1, and cereal arrives lower body 14 through tempering portion 12 and drying section 13 respectively downwards by gravity, lower body 14 is provided with six impeller draining crop mechanisms 15, and row's grain speed is controlled by draining crop mechanism 15.One side dress burner 4 of drying machine main body 1, produces thermal medium and carrys out dried grain.The hot blast of proper temperature is by exhausting duct 2, and drying portion 13 is dried cereal, and dried humid air is extracted through exhausting duct 2 and again discharged by air-introduced machine 3.Cereal is after primary drying, by the draining crop mechanism 15 of lower body 14, enter the lower auger 16 of lower body 14, lower auger 16 is discharged drying machine main body 1 by cereal and is entered turnover grain elevator 5, again enter the interior continuation of drying machine main body 1 by turnover grain elevator 5 cereal and be dried, thus the cyclic drying process of be dried-tempering of formation-dry-tempering.In cyclic drying process, grain moisture content evaporation, weight saving, the variation of weight makes drying machine gross weight (containing cereal) sensor group 6 measure and changes.The time of cyclic drying or the cycle-index of cyclic drying, depend on the initial moisture of grain, temperature and the final goal moisture of thermal medium.
As shown in Figure 2, Figure 5 and Figure 6: described drying machine gross weight (containing cereal) LOAD CELLS group 6 is made up of several LOAD CELLSs, is placed in a underfooting of the lower body 13 of drying machine main body 1.Drying machine gross weight (containing cereal) sensor group realizes the detection that dryer inner is filled to cereal weight change; Temperature Humidity Sensor group comprises the detecting sensors such as ambient temperature and humidity, cereal temperature, heat medium temperature; Signal test and conversion unit, amplifies the signal such as gross weight, humiture detecting be converted into data signal, is transferred to control module (host computer); Control module is mainly accepted the signal of system related sensor, after signal is judged and analyzed, drying machine is implemented to moisture on-line control.LOAD CELLS group 6 is to adopt all identical 4 above LOAD CELLSs compositions of principle, structure, size, material, range and precision.Here adopt LOAD CELLS to comprise annular isolating pad 21, resistance strain gage 22, through hole 23, small through hole 24, spoke elastomer 25.Wherein, annular isolating pad 21 is arranged on above spoke elastomer 25, and the object that adds annular isolating pad 21 is for fear of the gap of the impurity such as dust, sleet filling detector and drying machine, affects certainty of measurement, infringement instrument.Whole sensor is spoke structure, and LOAD CELLS centre is processed as a wheel hub.Wheel hub position is boss-shaped, at wheel hub central shaft to having through hole 23.The outside of wheel hub is along the circumferential direction processed with annular recess, uniformly in annular recess is processed with 8 small through hole 24, forms 8 uniform spokes, resistance strain gage 22 be distributed in small through hole 24 inside, stick on the sidewall of spoke elastomer 25.Spoke outside is rim, and plus load acts on the top of wheel hub and the bottom spoke of rim bears shearing force, indirectly measures load by this power.
Described drying machine gross weight (containing cereal) sensor group 6 adopts two kinds of connected modes with being connected of drying machine single unit system:
1) half supporting construction: LOAD CELLS group is arranged on a underfooting of drying machine base, the weight that drying machine main body comprises cereal drops on sensor, and turnover grain elevator is connected by hinge mode with drying machine main body, hot-blast stove, air-introduced machine are connected with drying machine main body by the soft joint of airduct, avoid like this detection of connection, vibrations and the quality influence LOAD CELLS of elevator, hot-blast stove, air-introduced machine;
2) full supporting construction: LOAD CELLS group and drying machine interconnect by a connecting bottom board, installs drying machine main body and turnover grain elevator on connecting bottom board, hot-blast stove, air-introduced machine are still connected with drying machine main body by the soft joint of airduct.
As shown in Fig. 1 Fig. 2 Fig. 6 and Fig. 7 when the interior grain moisture content of drying machine main body 1 changes while causing weight change, spoke elastomer 25 bears shearing force and produces deformation, the resistance strain plate 22 that now sticks on spoke elastomer 25 sidewalls also produces deformation, resistance changes, be converted into voltage signal through bridge circuit, voltage signal is transferred to signal conversion and detecting unit 7.
As shown in Figure 7: described signal detection and converting unit 7 are collected voltage signal and conversion.This unit is made up of amplification filtering circuit, analog to digital conversion circuit, house dog circuit, MCU signal processor, RS485 serial communication circuit.The moisture detector JDAI-III type water content detection device that signal detection and converting unit 7 can adopt Jida Science Instrument & Equipment Co., Ltd., Changchun to produce in implementing.
The design of this circuit is such, by preposition amplification filtering circuit, eliminates noise, amplifying signal with this.Be connected with analog-to-digital conversion circuit again, be responsible for analog signal to be converted into the data signal that can be received by host computer.Again MCU signal processing circuit is connected with analog-to-digital conversion circuit, is responsible for processing the data signal of accepting.House dog circuit is connected with MCU circuit, prevents the phenomenons such as locked, the loss of program.Finally the signal of handling well is connected with control display unit 7 by RS485 serial communication circuit.
Wherein voltage signal is after filtering after amplifying circuit, filtering noise, eliminated interfering signal, signal value amplifies.The voltage signal of filter amplifying processing still belongs to analog quantity, can't be received by host computer, and to be now the data signal that can be received by host computer through analog-to-digital conversion line transfer by signal.Data signal is carried out computing through MCU signal processing circuit.MCU signal processing circuit is single-chip microcomputer signal processing circuit.Can set up the relation between weight change value-voltage signal-data signal-moisture by computing.In addition.The temperature-humidity signal in ambient temperature and humidity, drying machine main body 1 is transferred to mcu signal processing circuit by humiture detecting head group 9.Humiture detecting head group 9 can adopt Sai Site ST800 humiture probe group.Bin level indicator 10 signals are connected with signal test and conversion unit 7, to judge the height of drying machine main body 1 interior grain, control with this operation that passes in and out grain elevator 5.Bin level indicator 10 can adopt the bright CX-11B of haze type material positioning indicator.
In the operation of MCU system, have once in a while to run such as program and lose, store inefficacy, external disturbance or operate some phenomenons such as incorrect, cause system to enter endless loop and cannot normally work.Needing increases watchdog circuit, and the basic function of house dog circuit is to make program initialization after running software generation problem and misprogramming.So just can when running into interference like that, system reset at once, the so perfect to a great extent job stability of machine self.At this moment, then by digitlization, stable, be transferred to and control and display unit 8 through the signal of computing.
Described control display unit is as Fig. 8.Control the JDAI-II type moisture sensing control display that display unit 8 can adopt Jida Science Instrument & Equipment Co., Ltd., Changchun to produce.
In sum, completed the realization of the circulation investigating method based on cereal gross weight water content detection by the manipulation of the circulation TT&C system to based on cereal gross weight water content detection.
As Fig. 9, Figure 10, Figure 11, Figure 12 and Figure 13, crop dryer moisture on-line investigating method of the present invention, has isothermal drying or speed limit to be dried two kinds of patterns, makes cereal reach the desired value of moisture.
Pattern one: wait temperature control (etc. medium temperature), described wait temperature control be exactly judge grain moisture content whether be up to state standards regulation safe moisture, safe water score value is 14%, reach safe moisture, stop drying operation (emphasis is the supply that stops thermal medium), start the operation of row's grain, otherwise continue dry.Shown in temperature control grain cyclic drying process Figure 10, Figure 11.Institute is shown in cyclic drying operation, and setting and control heat medium temperature are constant.In initial stage of drying, the moisture content of grain is higher, moisture diffusion speed, and moisture fall off rate is also very fast, and the temperature of grain is significantly lower than medium temperature.With the carrying out of dry run, the moisture of grain declines progressively slack-off, and what the gross weight of grain declined also slows down, and the temperature of grain progressively raises, trend medium temperature.In this process, to control display unit and automatically target setting moisture (gross weight) and actual measurement moisture (gross weight) are compared, its difference is less than after 0.5% moisture, and controlled circulation drying machine stops being dried.
Pattern two: constant speed control (waiting precipitation speed).Described constant speed control belongs to switching value control, on the basis of cereal gross weight or moisture, grain temperature, thermal medium humiture, ambient temperature and humidity, carry out logic judgement and model prediction analysis, control temperature and row's grain speed of thermal medium, make the precipitation speed of cereal maintain or (as make the precipitation speed of paddy maintain 0.8% lower than some numerical value, the precipitation speed of corn is lower than 2.5%), until reach safe moisture.The control strategy of constant speed control and Control for Speed Limitation adopts classical PID method or adopts forecast Control Algorithm (model prediction moisture changes and PID control combines).Constant speed alternating temperature control grain cyclic drying process as shown in Figure 12 and Figure 13.For overcome isothermal drying process exist beginning precipitation fast, later stage precipitation is slow, the grain quality causing declines, the invention provides the control of constant speed alternating temperature, by constantly regulating medium temperature, make the numerical value quality identical or unit interval inner drying machine gross weight (containing cereal) that in the unit interval, grain moisture reduces reduce identical.In same this process, control display unit and automatically target setting moisture (gross weight) and actual measurement moisture (gross weight) are compared, its difference is less than after 0.5% moisture, and controlled circulation drying machine stops being dried.
In conjunction with specific embodiments crop dryer moisture on-line investigating method of the present invention is described further.Take weight as 8 tons, it is example that initial water is divided into 26% paddy rice to be dried.
As Fig. 9, the crop dryer moisture on-line investigating method that utilizes the utility model system be exactly the detection that comprises grain quality, drying machine single unit system quality so that drying machine gross weight sensor group is detected be basis, in conjunction with the detection to drying operation thermal medium humiture, cereal temperature, in deduction dry run, variation and the variation tendency of cereal gross mass and moisture, wait temperature control or constant speed control to dry run.Concrete steps are as follows:
Step 1, job initialization: input and store the initial water score value M of paddy rice to be dried in the control display unit of drying machine
0=26%, target moisture value M
t=14%, 50 ℃ of heat medium temperatures, precipitation rate-limit (precipitation speed V is no more than 2.5%), drying operation mode (isothermal drying mode or constant rate of drying mode);
Step 5: monitoring cyclic drying process: constantly detect, read and store real-time gross weight Wi by controlling with display unit, and carry out internal arithmetic according to following formula and finally demonstrate cereal Real-time Water score value M to be dried
i(i moment average moisture value).
Wherein, W0 is dry initial gross weight, and Wb is drying machine main quality (tare weight), and Wi is i moment gross weight in dry run, M
0for initial moisture, M
ifor i moment dryer inner grain average moisture in dry run;
Divided by time interval length, obtain the precipitation range of unit interval, i.e. precipitation speed V. by the difference of calculating moisture value 2 times at certain hour interval
Wherein △ M calculates the poor of moisture values for 2 times of certain hour interval, and △ t is time interval length.
Step 7: as cereal Real-time Water score value M
iwhile not yet entering surrounding target moisture value 14% suitable undulating value scope (as ± 0.5%), return to the 5th step; As cereal Real-time Water score value M
iwhile entering surrounding target moisture value 14% suitable undulating value scope (as ± 0.5%), stop thermal medium and supply with; Then the grain of dryer inner is all discharged to batch of end loop drying operation.
Referring to Figure 14: in the present embodiment, cereal cyclic drying automatic system based on total re-detection of the present utility model is the variation on the basis of embodiment 1, something in common no longer repeats, difference is, drying machine main body 1 promotes 5 with turnover grain and adopts the full mode supporting to be connected with drying machine gross weight (containing cereal) LOAD CELLS group 6, full supporting way is that drying machine main body 1, turnover grain elevator 5 etc. are arranged on connecting bottom board 26, and drying machine gross weight (containing cereal) LOAD CELLS group 6 is arranged under connecting bottom board 26.
Referring to Figure 15: the cereal cyclic drying automatic system based on total re-detection of the present utility model is the variation on the basis of embodiment 1, something in common no longer repeats, difference is, drying section 13 is taked two drying section patterns, and drying section 13 is become to two from one.Auger 11 in cancellation, increases into grain elephant trunk 27 and buffer 28, and the grain in turnover grain elevator 5 enters tempering portion 12 by entering grain elephant trunk 27 with buffer 28.
Referring to Figure 16: the cereal cyclic drying automatic system based on total re-detection of the present utility model is the variation on the basis of embodiment 1, and something in common no longer repeats.Difference is, adopts half connected mode supporting.Cancel connecting bottom board 26, directly drying machine gross weight (containing cereal) LOAD CELLS group 6 is arranged under an angle of lower body 14.
Claims (8)
1. the cereal cyclic drying system based on total re-detection, it is characterized in that: this system comprises drying machine main body (1), exhausting duct (2), air-introduced machine (3), burner (4), turnover grain elevator (5), humiture probe group (9) and bin level indicator (10), it is characterized in that: it also comprises drying machine gross weight LOAD CELLS group (6), signal test and conversion unit (7) and control display unit (8), described drying machine gross weight sensor group (6) is arranged on drying machine main body (1) below, drying machine gross weight sensor group (6) connects signal test and conversion unit (7), signal test and conversion unit (7) connects controls display unit (8).
2. a kind of cereal cyclic drying system based on total re-detection according to claim 1, it is characterized in that: described drying machine main body (1) comprises auger (11), tempering portion (12), drying section (13), lower body (14), charging hopper (1), the below of described upper auger (11) is that tempering portion (12), tempering portion (12) are drying section (13) below, drying section (13) below is provided with lower body (14), and described lower body (14) comprises draining crop mechanism (15) and lower auger (16).
3. a kind of cereal cyclic drying system based on total re-detection according to claim 1, it is characterized in that: described drying machine main body (1) adopts with turnover grain elevator (5) form being hinged, in the internal structure being hinged, connecting plate (18) is bolted on drying machine main body (1) with turnover grain elevator (5) together with, interior card (19) and wild card (20) be arranged on turnover grain elevator (5) in, to pass in and out grain elevator (5) fixing, by regulating interior card (19), the position of wild card (20) regulates the position of turnover grain elevator (5) with respect to tempering portion (11).
4. a kind of cereal cyclic drying system based on total re-detection according to claim 1, it is characterized in that: described air-introduced machine (3) adopts the form that is flexible coupling to be connected with the lower body (14) of drying machine main body (1), and air-introduced machine (3) links together by soft joint with exhausting duct (2).
5. a kind of cereal cyclic drying system based on total re-detection according to claim 1, it is characterized in that: described drying machine gross weight LOAD CELLS group (6) is made up of several LOAD CELLS main bodys, be placed in a underfooting of the lower body (13) of drying machine main body (1).
6. a kind of cereal cyclic drying system based on total re-detection according to claim 1, it is characterized in that: described drying machine main body (1) adopts the full mode supporting to be connected with drying machine gross weight LOAD CELLS group (6) with turnover grain elevator (5), below drying machine main body (1) and turnover grain elevator (5), connecting bottom board (26) is set, and drying machine gross weight LOAD CELLS group (6) is arranged under connecting bottom board (26).
7. a kind of cereal cyclic drying system based on total re-detection according to claim 1, it is characterized in that: described drying machine main body (1) and turnover grain elevator (5) adopt half connected mode supporting, drying machine gross weight LOAD CELLS group (6) is directly installed on a underfooting of lower body (14).
8. a kind of cereal cyclic drying system based on total re-detection according to claim 2, it is characterized in that: described drying section (13) is taked many drying sections pattern, drying section (13) is become more than two from one, cancel upper auger (11) simultaneously, increase into grain elephant trunk (27) and buffer (28), the grain in turnover grain elevator (5) enters tempering portion (12) by entering grain elephant trunk (27) with buffer (28).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823116.6U CN203597317U (en) | 2013-12-13 | 2013-12-13 | Grain circulating drying system based on gross weight detection |
| PCT/CN2013/090905 WO2015085634A1 (en) | 2013-12-13 | 2013-12-30 | Total-weight detection-based method and system thereof for on-line measuring and controlling moisture in circulation drying of grain |
| JP2016600082U JP3208135U (en) | 2013-12-13 | 2013-12-30 | On-line measurement control method and system for circulated dry moisture based on total weight detection |
| US15/180,091 US20160363371A1 (en) | 2013-12-13 | 2016-06-13 | Total -weight detection-based method and system thereof for on-line measuring and controlling moisture in circulation drying of grain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823116.6U CN203597317U (en) | 2013-12-13 | 2013-12-13 | Grain circulating drying system based on gross weight detection |
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| Publication Number | Publication Date |
|---|---|
| CN203597317U true CN203597317U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320823116.6U Expired - Lifetime CN203597317U (en) | 2013-12-13 | 2013-12-13 | Grain circulating drying system based on gross weight detection |
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| CN (1) | CN203597317U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103615881A (en) * | 2013-12-13 | 2014-03-05 | 长春吉大科学仪器设备有限公司 | On-line measuring and control method and system of grain circulation drying moisture based on total-weight detection |
| CN104247760A (en) * | 2014-09-19 | 2014-12-31 | 刘思彤 | Grain dryer with automatic weighing device |
| CN104886247A (en) * | 2015-06-08 | 2015-09-09 | 长春吉大科学仪器设备有限公司 | Low-part rotated grain-outlet type cyclical cereal drying machine |
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- 2013-12-13 CN CN201320823116.6U patent/CN203597317U/en not_active Expired - Lifetime
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| CN103615881A (en) * | 2013-12-13 | 2014-03-05 | 长春吉大科学仪器设备有限公司 | On-line measuring and control method and system of grain circulation drying moisture based on total-weight detection |
| CN103615881B (en) * | 2013-12-13 | 2015-09-23 | 长春吉大科学仪器设备有限公司 | Based on cereal cyclic drying moisture on-line investigating method and the system thereof of total re-detection |
| CN104247760A (en) * | 2014-09-19 | 2014-12-31 | 刘思彤 | Grain dryer with automatic weighing device |
| CN104886247A (en) * | 2015-06-08 | 2015-09-09 | 长春吉大科学仪器设备有限公司 | Low-part rotated grain-outlet type cyclical cereal drying machine |
| CN104886247B (en) * | 2015-06-08 | 2018-05-18 | 长春吉大科学仪器设备有限公司 | A kind of low level rotates Cirulation type grain dryer of putting out cereal |
| CN105300093A (en) * | 2015-11-04 | 2016-02-03 | 长春吉大科学仪器设备有限公司 | Continuous grain drying water online measuring and controlling method and system based on double-bin mass flow method |
| CN105300093B (en) * | 2015-11-04 | 2016-07-06 | 长春吉大科学仪器设备有限公司 | Continuous corn drying moisture on-line investigating method and system based on double; two storehouses mass flow method |
| CN106970602A (en) * | 2017-04-24 | 2017-07-21 | 湖北工业大学 | A kind of paddy removal of impurities drying storage integral control system and control method |
| CN107176443A (en) * | 2017-07-10 | 2017-09-19 | 合肥佳粮机械科技有限公司 | A kind of elevator controlled based on controller automatization |
| CN109708460A (en) * | 2019-01-30 | 2019-05-03 | 深圳市森控科技有限公司 | A kind of drying system and its control method and control device |
| CN111964364A (en) * | 2020-08-24 | 2020-11-20 | 滁州明诺机械有限公司 | Split formula grain drying equipment |
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