CN111219962A - Nut drying device with real-time moisture content monitoring function - Google Patents
Nut drying device with real-time moisture content monitoring function Download PDFInfo
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- 238000001035 drying Methods 0.000 title claims abstract description 89
- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 238000012806 monitoring device Methods 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims description 41
- 239000000919 ceramic Substances 0.000 claims description 29
- 238000005070 sampling Methods 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 34
- 230000008859 change Effects 0.000 abstract description 28
- 230000008569 process Effects 0.000 abstract description 26
- 238000012545 processing Methods 0.000 abstract description 7
- 235000013305 food Nutrition 0.000 abstract description 3
- 241000353135 Psenopsis anomala Species 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 235000020238 sunflower seed Nutrition 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 7
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- 238000010438 heat treatment Methods 0.000 description 3
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- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000011888 snacks Nutrition 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
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Abstract
The invention belongs to the field of food processing, and discloses a nut drying device with real-time moisture content monitoring, which comprises a moisture content monitoring device and a drying box body; the moisture content monitoring device is connected with the top end of the drying box body, a hot air channel is arranged in the drying box body, and a discharge hole is formed in the bottom of the drying box body; the water content monitoring device comprises a working box body, a display panel and a working box body blanking device; and the side wall of the working box body is provided with a test circuit integrated module. Change the moisture content among the nut drying process converts the electric capacity change into, has realized the real time monitoring of the whole moisture content of working process and the automatic control of the nut blanking ejection of compact, and the blanking ejection of compact process of product changes along with the change of moisture content in real time, has avoided the big problem of current drying device product quality randomness, improves the yield greatly.
Description
Technical Field
The invention belongs to the field of food processing, and relates to a nut drying device capable of monitoring moisture content in real time.
Background
The nuts are various in types and have great application in daily life, and most of the nuts are used as snacks and become leisure food after meals. In the existing nut production enterprises, the production and manufacturing process of nut snacks has a relatively fixed flow, taking sunflower seeds which are the most common in daily life as an example. In the processing process of the sunflower seeds, raw sunflower seeds are firstly winnowed and cleaned, then the sunflower seeds are put into a boiler to be boiled and tasty, then the boiled sunflower seeds are put into a drying tower to be dried at high temperature, finished product screening is carried out after the sunflower seeds are dried into the sunflower seeds with certain water content, and recently, the sunflower seeds which are eaten by people are formed by cooling and packaging. The taste of the melon seeds is closely related to the drying degree of the melon seeds, the drying degree is also the moisture content degree in the finished melon seeds, the production process of nuts has harsh requirements on moisture, and a proper amount of moisture needs to be stored in the finished melon seeds so as to ensure that the melon seeds are tasty, crisp in taste and rich in fragrance. If the water content of the finished melon seeds is too much, the melon seeds are wet in taste but not crisp, the storage time is shortened, and the melon seeds are easy to mildew; on the contrary, if the water content of the finished melon seeds is too low, the melon seeds are not full in particles, are flat and hard, are difficult to chew, and the melon seed peels are easy to scatter in the oral cavity in the eating process, and are easy to generate soil in the storage and transportation process, so that the taste is seriously influenced. Therefore, the water content of the nuts needs to be monitored in real time in the nut production process so as to ensure good mouthfeel of the melon seeds.
The drying process of the nuts is the process that the moisture content of the nuts is reduced, and the drying process of the nuts in the prior art is generally used for indirectly controlling the moisture content of the nut finished products by setting the drying time according to production experience. The method has a lot of uncertainties, and in the set drying time, if the heating temperature does not reach an ideal temperature value, the water content in the nuts is too high, the taste of the nuts is reduced, and meanwhile, the storage of the product is not facilitated; if the heating temperature is higher than the ideal temperature value, the nuts are shriveled and hard, and the edible mouthfeel of the nuts is also adversely affected; furthermore, the hot air flow is not constant during the drying process of the nuts, and these variations can cause uncontrollable drying time of the nuts. Similarly, the ambient temperature is an important factor affecting the drying process of nuts, and the ambient temperature during production may also change irregularly with the passage of time, and it is difficult to consider the drying degree of nuts with a constant drying time. In addition, variations in the thickness of the material spread, the physical characteristics of the nuts, and the flavor composition can have a significant impact on the drying process of the nuts.
Therefore, the way of indirectly controlling the moisture content by setting the drying time is unreasonable, and the control method based on the production experience has great limitation. Firstly, the method is influenced by various factors, the randomness of the water content of the produced nuts is high, the product quality is unstable, and the yield is low; secondly, the setting of the drying time needs to be manually and successively debugged, so the method is not suitable for large-scale industrial production; finally, when the ambient temperature, the material spreading thickness, the nut physical characteristics and the seasoning components are changed, the setting of the drying time needs to be adjusted correspondingly, so that the difficulty of controlling the production process is greatly improved, the nut processing quality is unstable, and the problem to be solved in the existing nut industry is also solved urgently.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, the drying degree of nuts is difficult to control, the drying quality of the nuts is unstable, the yield is low, and the drying process is complex, and provides the nut drying device for monitoring the moisture content in real time.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a nut drying device with real-time moisture content monitoring function comprises a drying box body and a moisture content monitoring device; the moisture content monitoring device is connected with the top end of the drying box body, a hot air channel is arranged in the drying box body, and a discharge hole is formed in the bottom of the drying box body; the water content monitoring device comprises a working box body, a display panel and a working box body blanking device; the side wall of the working box body is provided with a test circuit integrated module, the test circuit integrated module comprises a capacitance converter, an oscillator, a frequency discriminator and a sampling counter which are sequentially connected, and the sampling counter is connected with the display panel; two ceramic electrode plates are arranged in the working box body, the two ceramic electrode plates are respectively arranged on two symmetrical inner walls of the working box body, and the two ceramic electrode plates are both connected with the capacitance converter; one end of the work box blanking device is connected with the side wall of the work box, and the other end of the work box blanking device extends into the work box and is positioned below the ceramic polar plate and used for opening or closing the bottom of the work box.
The invention further improves the following steps:
the test circuit integrated module further comprises a limiting amplifier, and the oscillator is connected with the frequency discriminator through the limiting amplifier.
The automatic feeding device comprises a working box body blanking device, a sampling counter, a singlechip, a feeding device and a feeding device, wherein one end of the singlechip is connected with the sampling counter, the other end of the singlechip is connected with the working box body blanking device, and when the numerical value sent by the sampling counter and received by the singlechip is smaller than a first preset numerical value, the singlechip closes the working box body blanking device and closes the bottom of the working box body; when the numerical value sent by the sampling counter received by the single chip microcomputer is larger than a second preset numerical value, the single chip microcomputer opens the blanking device of the working box body, and the bottom of the working box body is opened.
The top end of the working box body is provided with a bin, and the bin comprises a storage box body and a bin blanking device; the storage box body is connected with the work box body, and feed bin doffer one end is connected with storage box body lateral wall, and inside the other end stretched into the storage box body, feed bin doffer was used for blocking or the passageway between intercommunication feed bin and the work box body.
The bin blanking device comprises a bin cylinder, a bin connecting rod mechanism and a plurality of bin rotary baffles; the feed bin cylinder is fixed to be set up on storage box lateral wall, and feed bin link mechanism and a plurality of feed bin rotary baffle are connected gradually to the flexible end of feed bin cylinder, and the interior bottom at the storage box is spread to a plurality of feed bin rotary baffle.
The display control system also comprises an infrared correlation sensor, the infrared correlation sensor is connected with the inner wall of the working box body and is positioned above the ceramic polar plate, and the infrared correlation sensor and the bin cylinder are both connected with the single chip microcomputer; when the single chip microcomputer receives the signals that the transmitting end and the receiving end of the infrared correlation sensor are blocked, the single chip microcomputer closes the bin cylinder, and a channel between the bin and the working box body is blocked; otherwise, the single chip microcomputer opens the bin cylinder after the preset time, and the bin is communicated with the channel between the working box bodies.
The work box body blanking device comprises a work box body air cylinder, a work box body connecting rod mechanism and a plurality of work box body rotating baffles; the working box body air cylinder is fixedly arranged on the side wall of the storage box body, the telescopic end of the working box body air cylinder is sequentially connected with the working box body connecting rod mechanism and the working box body rotating baffle plates, and the working box body rotating baffle plates are paved at the inner bottom of the storage box body and are all located below the ceramic polar plate.
The working box body cylinder is connected with the single chip microcomputer; when the value received by the single chip microcomputer and sent by the sampling counter is smaller than a first preset value, the single chip microcomputer closes the working box body cylinder, and the bottom of the working box body is closed; when the numerical value sent by the sampling counter received by the single chip microcomputer is larger than a second preset numerical value, the single chip microcomputer opens the working box body cylinder, and the bottom of the working box body is opened.
The drying box body is provided with a support frame on the outer side, and the single chip microcomputer and the display panel are arranged in a control cabinet arranged on the outer surface of the support frame.
Compared with the prior art, the invention has the following beneficial effects:
according to the nut drying device with the real-time moisture content monitoring function, heated air enters the interior of the working box body through the hot air channel of the drying box body to dry nuts inside the working box body, the moisture content monitoring device is arranged at the top end of the drying box body, the moisture content of the nuts inside the device is monitored in real time, when the moisture content detection meets the preset requirement, the nut drying is finished, and the nut is discharged through the discharge hole formed in the bottom of the drying box body. The moisture content of nut of real-time detection among the nut stoving process, and then the blanking of real-time control nut, ejection of compact process, avoid among the prior art indirect mode control moisture content through control ejection of compact interval, the defect that leads to the actual often skew expectation of off-the-shelf moisture content, the yield of great improvement nut, the mode that this kind of direct nut moisture content detected, make the in-process of nut stoving need not consider other influencing factors, very big reduction the degree of difficulty of processing and control, guarantee the off-the-shelf quality of nut processing. Meanwhile, the whole drying process is based on the detection result of the water content, so that manual intervention is not needed, the preheating link before the operation of the existing drying equipment can be omitted, the discharging interval debugging process in the prior art can be omitted, the operability of product equipment is improved, and large-scale production is facilitated; the ceramic polar plate, the test circuit integrated module and the display control system module are integrated on one working box body, the structure is simple, the installation and the disassembly are convenient, the universality is high, and the ceramic polar plate and the test circuit integrated module can basically adapt to all the existing drying equipment. Simultaneously, moisture content monitoring device can lead to corresponding dielectric constant different through the difference that utilizes the medium water content, and the dielectric constant difference can arouse the medium capacitance to produce linear change, according to the capacitance change and then can reflect this principle of how much of moisture content, through setting up the capacitance change that two ceramic polar plates detected the work box inner space, change the capacitance who detects through capacitance converter, oscillator, discriminator and sample counter in proper order again and convert audio-visual digital signal into, and show through display panel, can make the staff know the moisture content of current medium at any time, convenient and fast. Meanwhile, a work box body blanking device is arranged, the bottom of the work box body is opened or closed through the work box body blanking device, continuous detection of the moisture content of a large number of media is achieved, detection time is greatly shortened, and detection efficiency is improved.
Furthermore, a limiting amplifier is arranged to amplify the detected capacitance change signal, so that the detection precision of the whole device is improved.
Further, the work box top sets up the feed bin, the feed bin includes storage box and feed bin doffer, the storage function is accomplished to the storage box, feed bin doffer is used for blocking or feeds through the passageway between feed bin and the work box, realize the batch ejection of compact of nut in the storage box, dry in batches, can once carry out large batch nut and dry, improve nut drying efficiency, through the double-deck doffer of feed bin doffer and work box doffer, guarantee the stability and the continuity of whole drying process.
Further, still set up infrared correlation sensor for realize feed bin doffer's automation, reduce artifical the input, guarantee that the nut volume of drying at every turn is the same, guarantee oven-dry mass.
Further, the work box body air cylinder is connected with the single chip microcomputer, automation of the work box body air cylinder is achieved, labor input is reduced, and drying efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a moisture content monitoring device according to the present invention;
FIG. 2 is a schematic diagram of an integrated module structure of a test circuit of the moisture content monitoring device of the present invention;
FIG. 3 is a schematic diagram of a display control system module of the moisture content monitoring device according to the present invention;
FIG. 4 is a front elevational view of the overall construction of the nut drying apparatus of the present invention;
FIG. 5 is a rear elevational view of the overall construction of the nut drying apparatus of the present invention;
FIG. 6 is a schematic view of a bin configuration of the nut drying apparatus of the present invention;
FIG. 7 is a schematic view of the drying cabinet of the nut drying apparatus of the present invention;
FIG. 8 is a flow chart of the operation of the nut drying apparatus of the present invention;
fig. 9 is a flow chart of a control system of the nut drying apparatus of the present invention.
Wherein: 1-a storage bin; 101-a storage box body; 102-a bin cylinder; 103-bin linkage; 104-bin rotating baffles; 2-a working box body; 201-ceramic pole plate; 202-infrared correlation sensor; 203-air cylinder; 204-a linkage mechanism; 205-rotating baffles; 206-line pipes; 3-drying the box body; 301-hot air duct; 302-a discharge hole; 4-a support frame; 5-testing the circuit integrated module; 501-a capacitive converter; 502-an oscillator; 503-limiting amplifier; 504-a frequency discriminator; 505-a sample counter; 6-a control cabinet; 601-single chip microcomputer; 602-display panel.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 to 7, the nut drying device for real-time moisture content monitoring of the invention comprises a storage bin 1, a moisture content monitoring device, a drying box body 3 and a support frame 4. Wherein, moisture content monitoring devices is become medium formula capacitance sensor device, can the moisture content in the real-time detection nut to control off-the-shelf ejection of compact process. The capacitance sensor is a sensor which converts the change of the measured non-electricity into capacitance change, and the capacitance of the capacitance sensor changes along with the change of the polar distance of the polar plate, the area of the polar plate and the dielectric constant between the polar plate and the polar plate. To nut drying equipment, progressively dry to the nut that has certain moisture content with the nut that has boiled, the dielectric constant that the nut of different moisture content corresponds is different, and its dielectric constant is linear change along with the moisture content of nut, and then electric capacity production linear change in arousing wet nut.
The moisture content monitoring device comprises a working box body 2 and a working box body blanking device. The working box body 2 is provided with two ceramic pole plates 201 for detecting the water content, a test circuit integrated module 5 and a display control system module. Two ceramic plate 201 symmetries are installed in the inner wall of work box 2, and ceramic plate 201's lower surface is located work box doffer one end top, and ceramic plate 201 is used for detecting the capacitance change of 2 inner spaces of work box, in this embodiment to the moisture content detection for the nut is the example, and two ceramic plate 201 can change the moisture content in the nut for the change that turns into the capacitance.
The blanking device of the working box body comprises a working box body cylinder 203, a working box body connecting rod mechanism 204 and a plurality of working box body rotating baffles 205; a plurality of work box rotating baffle 205 tile in the bottom of work box 2, and work box rotating baffle 205's one end links to each other with work box link mechanism 204's end, and work box link mechanism 204's actuating arm links to each other with the flexible end of work box cylinder 203, and work box cylinder 203 installs on the support frame that sets up on work box 2 lateral wall. The telescopic motion of the working box cylinder 102 is converted into the rotary opening and closing motion of the working box rotary baffle 104, when the working box cylinder 102 extends out, the working box rotary baffle 104 is rotated to open, otherwise, the working box rotary baffle 104 is closed; or the work box rotating baffle 104 is rotated to be closed when the work box cylinder 102 extends, and conversely, the work box rotating baffle 104 is opened, but not limited to this.
The test circuit integrated module 5 is installed on the outer side wall of the working box body 2 and comprises a capacitance converter 501, an oscillator 502, a limiting amplifier 503, a frequency discriminator 504 and a sampling counter 505 which are connected in sequence, wherein the capacitance converter 501 is a universal product, is composed of a capacitance inductor and is connected with the ceramic pole plate 201 through a lead, and the sampling counter 505 is connected with the display control system module. The test circuit integrated module 5 is used for converting capacitance change into a digital signal and outputting the digital signal, wherein the capacitance converter 501 and the oscillator 502 are used for converting capacitance change into a frequency change signal, the limiting amplifier 503 is used for amplifying the converted frequency change signal and improving the measurement accuracy of the device, the frequency discriminator 504 is used for converting the frequency change signal into an amplitude change signal, and finally the sampling counter 505 is used for converting the amplitude change signal into a digital signal and outputting the digital signal to the display control system module.
The display control system module comprises a singlechip 601, a display panel 602 and an infrared correlation sensor 202, wherein the singlechip 601 is an 8051 singlechip; the infrared correlation sensor 202 is arranged on the inner wall of the working box body 2 and is positioned above the ceramic pole plate 201, and the signal output end of the infrared correlation sensor 202 is connected with the pin of the singlechip 601 through a lead; the single chip microcomputer 601 and the display panel 602 are installed in the control cabinet 6, the control cabinet 6 can be installed on the outer surface of the working box body 2, and can also be installed on other supporting components, one pin of the single chip microcomputer 601 is connected with the output end of the test circuit integrated module 5, namely the output end of the sampling counter 505, through a conducting wire, the infrared correlation sensor 202 is used for detecting the volume of nuts falling in the working box body 2, and the display panel 602 is connected with the output end of the sampling counter 505 and is used for displaying digital signals sent by the sampling counter 505.
The storage bin 1 is composed of an upper storage bin body 101 and a lower storage bin blanking device, and the storage bin blanking device comprises a storage bin cylinder 102, a storage bin connecting rod mechanism 103 and a plurality of storage bin rotary baffle plates 104. A plurality of feed bin rotating barriers 104 tile in the bottom of storage tank 101, and feed bin rotating barriers 104's one end links to each other with feed bin link mechanism 103's end, and feed bin link mechanism 103's actuating arm links to each other with feed bin cylinder 102's flexible end, and feed bin cylinder 102 installs on the support frame of 1 outer wall of feed bin. The material storage box 101 is used for ensuring the full use of heat and the continuity of processing; the telescopic motion of the bin cylinder 102 is converted into the rotary opening and closing motion of the bin rotary baffle 104, when the bin cylinder 102 extends out, the bin rotary baffle 104 is rotated to be opened, otherwise, the bin rotary baffle 104 is closed; or the bin rotary baffle 104 is rotated to be closed when the bin cylinder 102 extends, and the bin rotary baffle 104 is opened otherwise, but not limited thereto.
Feed bin doffer is used for controlling the blowing process of feed bin 1, feed bin doffer uses with infrared correlation sensor 202 and singlechip 601 cooperation, singlechip 601 is used for received signal and controls the blanking and the ejection of compact process of nut, display panel 602 shows the moisture content change of 2 inside nuts of work box in real time, realize the moisture content automatic monitoring of nut stoving in-process, according to the linear change process of nut moisture content in the stoving process promptly, blanking and the finished product ejection of compact process of nut when realizing drying.
Moisture content monitoring devices's 2 upper surfaces of work box are connected with feed bin 1, and stoving box 3 is connected to the lower surface for realize the continuous feeding and the ejection of compact of nut stoving process. The drying box body 3 realizes the functions of melon seed drying and finished product discharging, and the interior of the drying box body comprises a hot air channel 301 and a discharging hole 302. In the working process, the fan blows heated air into the drying box body 3 through the air inlet of the hot air channel 301, and hot air dries nuts through the internal gap between the working box body 2 and the storage bin 1; when the nut satisfies the set moisture content, the blanking mechanism of the work box body 2 is opened, and the nut falls into the drying box body 3 and is discharged through the discharge hole 302 of the drying box body.
Referring to fig. 8 and 9, the working process of the present invention is as follows:
nut drying device is carrying out the during operation, and the wind after the heating gets into stoving box 3, work box 2 and 1 insides of feed bin through stoving box 3's hot air channel 301, then will boil the nut and put into feed bin 1, begins to carry out the stoving of nut and the process of finished product ejection of compact after that.
When the volume of the fallen nuts reaches the upper surface of the ceramic polar plate 201, the nuts block the light transmission of the two poles of the infrared correlation sensor 202 installed on the upper surface of the ceramic polar plate 201, the single chip microcomputer 601 collects the signals of the infrared correlation sensor 202, outputs control signals to the bin cylinder 102, controls the bin cylinder 102 to retract, and the bin blanking device is closed. The dielectric constant of the nuts to be dried is linearly reduced along with the reduction of the water content, when the cooked nuts just fall into the working box body 2, the capacitance between the ceramic pole plates 201 is the largest, and the corresponding numerical value is the largest; with the increase of the drying time and the drying degree, the moisture content of the nuts is gradually reduced, the capacitance between the two ceramic electrode plates 102 is gradually reduced, and the numerical value of the digital signal sent by the sampling counter 505 is also gradually reduced; when the singlechip 601 receives a digital signal transmitted by the test circuit integrated module 5 and is greater than a second preset value, the singlechip 601 outputs a control signal to the working box body cylinder 203 to control the working box body cylinder 203 to extend out, the working box body rotating baffle 205 rotates to open, and the finished nuts are discharged.
After the whole ejection of compact of the finished product nut in the work box 2 is accomplished, the medium between two ceramic polar plates 201 is the air, the electric capacity is minimum between two polar plates this moment, singlechip 601 detects that the numerical value resets after, namely singlechip 601 detects that the digital signal that test circuit integrated form module 5 spreads is first default, output control signal to work box cylinder 203, control work box cylinder 203 withdrawal, work box doffer closes, after the system interval default time, 5 seconds in the embodiment, singlechip 601 output control signal to feed bin cylinder 102, control feed bin cylinder 102 stretches out, feed bin doffer opens, the nut that has boiled falls to work box 2 in through the doffer, accomplish a duty cycle.
Repeating the above process until all the cooked nuts in the storage bin 1 are put, feeding again, in the drying process, the moisture content of the nuts in the working box body 2 is gradually reduced, so that the dielectric constant is gradually reduced, the numerical value of the digital signal sent by the sampling counter 505 of the variable-medium capacitor moisture content monitoring device is changed, and the numerical value is displayed in real time through the display panel 602 arranged on the control cabinet 6.
According to the nut drying device for real-time monitoring of the moisture content, the moisture content in the whole working process is detected and controlled by using capacitance change in the nut drying process, the blanking and discharging process of a product changes in real time along with the change of the moisture content, the problem of high product quality randomness in the prior art is solved, and the yield is greatly improved; by adopting the double-layer blanking device, the nut blanking and finished product discharging processes are controlled by the single chip microcomputer, and the same finished product discharging volume can be ensured every time; the whole drying process is automatically controlled, manual intervention is not needed, the preheating link before the operation of the existing drying equipment can be omitted, and meanwhile, the discharging interval debugging process in the prior art can be omitted, so that the operability of product equipment is improved, and large-scale production is facilitated; ceramic polar plate 201, test circuit integrated form module 5 and display control system module integration are on a work box 2, and the upper and lower surface of work box 2 is equipped with the flange, and simple structure is convenient for install and is dismantled, has very high commonality, can detect the off-the-shelf moisture content in all drying equipment basically.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (9)
1. A nut drying device for real-time monitoring of moisture content is characterized by comprising a drying box body (3) and a moisture content monitoring device; the water content monitoring device is connected with the top end of the drying box body (3), a hot air channel (301) is arranged in the drying box body (3), and a discharge hole (302) is formed in the bottom of the drying box body;
the water content monitoring device comprises a working box body (2), a display panel (602) and a working box body blanking device; the side wall of the working box body (2) is provided with a test circuit integrated module (5), the test circuit integrated module (5) comprises a capacitance converter (501), an oscillator (502), a frequency discriminator (504) and a sampling counter (505) which are sequentially connected, and the sampling counter (505) is connected with a display panel (602); two ceramic pole plates (201) are arranged in the working box body (2), the two ceramic pole plates (201) are respectively arranged on two symmetrical inner walls of the working box body (2), and the two ceramic pole plates (201) are both connected with the capacitance converter (501); one end of the blanking device of the working box body is connected with the side wall of the working box body (2), and the other end of the blanking device of the working box body extends into the inside of the working box body (2) and is positioned below the ceramic polar plate (201) and used for opening or closing the bottom of the working box body (2).
2. The nut drying apparatus for real-time moisture content monitoring according to claim 1, wherein the test circuit integrated module (5) further comprises a limiting amplifier (503), and the oscillator (502) is connected to the frequency discriminator (504) through the limiting amplifier (503).
3. The nut drying device capable of monitoring the moisture content in real time according to claim 1, further comprising a single chip microcomputer (601), wherein one end of the single chip microcomputer (601) is connected with a sampling counter (505), the other end of the single chip microcomputer (601) is connected with a work box blanking device, when the value sent by the sampling counter (505) received by the single chip microcomputer (601) is smaller than a first preset value, the single chip microcomputer (601) closes the work box blanking device, and the bottom of the work box (2) is closed; when the numerical value sent by the sampling counter (505) received by the single chip microcomputer (601) is larger than a second preset numerical value, the single chip microcomputer (601) opens the blanking device of the working box body, and the bottom of the working box body (2) is opened.
4. The nut drying device capable of monitoring the moisture content in real time according to claim 3, wherein a bin (1) is arranged at the top end of the working box body (2), and the bin (1) comprises a storage box body (101) and a bin blanking device; the storage box body (101) is connected with the work box body (2), one end of the storage bin blanking device is connected with the side wall of the storage box body (101), the other end of the storage bin blanking device stretches into the interior of the storage box body (101), and the storage bin blanking device is used for blocking or communicating a channel between the storage bin (1) and the work box body (2).
5. The nut drying device capable of monitoring the moisture content in real time according to claim 4, wherein the bin blanking device comprises a bin cylinder (102), a bin link mechanism (103) and a plurality of bin rotary baffles (104); the bin cylinder (102) is fixedly arranged on the side wall of the storage box body (101), the telescopic end of the bin cylinder (102) is sequentially connected with the bin link mechanism (103) and the bin rotating baffle plates (104), and the bin rotating baffle plates (104) are tiled at the inner bottom of the storage box body (101).
6. The nut drying device capable of monitoring the moisture content in real time according to claim 5, wherein the display control system further comprises an infrared correlation sensor (202), the infrared correlation sensor (202) is connected with the inner wall of the work box body (2) and is positioned above the ceramic pole plate (201), and the infrared correlation sensor (202) and the bin cylinder (102) are both connected with the single chip microcomputer (601);
when the single chip microcomputer (601) receives signals that the transmitting end and the receiving end of the infrared correlation sensor (202) are blocked, the single chip microcomputer (601) closes the bin cylinder (102), and a channel between the bin (1) and the working box body (2) is blocked; otherwise, the single chip microcomputer (601) opens the bin cylinder (102) after the preset time, and the channel between the bin (1) and the working box body (2) is communicated.
7. The nut drying device with the moisture content real-time monitoring function as claimed in claim 3, wherein the work box blanking device comprises a work box cylinder (203), a work box link mechanism (204) and a plurality of work box rotating baffles (205); the working box body cylinder (203) is fixedly arranged on the side wall of the storage box body (101), the telescopic end of the working box body cylinder (203) is sequentially connected with a working box body connecting rod mechanism (204) and a plurality of working box body rotating baffle plates (205), and the plurality of working box body rotating baffle plates (205) are tiled at the inner bottom of the storage box body (101) and are all located below the ceramic pole plates (201).
8. The nut drying device capable of monitoring the moisture content in real time according to claim 7, wherein the working box body cylinder (203) is connected with a single chip microcomputer (601); when the value received by the single chip microcomputer (601) and sent by the sampling counter (505) is smaller than a first preset value, the single chip microcomputer (601) closes the working box body cylinder (203), and the bottom of the working box body (2) is closed; when the value sent by the sampling counter (505) received by the single chip microcomputer (601) is larger than a second preset value, the single chip microcomputer (601) opens the working box body cylinder (203), and the bottom of the working box body (2) is opened.
9. The nut drying device capable of monitoring the moisture content in real time according to claim 3, wherein a support frame (4) is arranged on the outer side of the drying box body (3), and the single chip microcomputer (601) and the display panel (602) are arranged in a control cabinet arranged on the outer surface of the support frame (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010162543.9A CN111219962A (en) | 2020-03-10 | 2020-03-10 | Nut drying device with real-time moisture content monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010162543.9A CN111219962A (en) | 2020-03-10 | 2020-03-10 | Nut drying device with real-time moisture content monitoring function |
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| CN111219962A true CN111219962A (en) | 2020-06-02 |
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| CN202010162543.9A Pending CN111219962A (en) | 2020-03-10 | 2020-03-10 | Nut drying device with real-time moisture content monitoring function |
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| CN115900285A (en) * | 2022-11-14 | 2023-04-04 | 邢台市天元星食品设备有限公司 | Honeycomb type dry-wet separation and deoxidation drying equipment for nuts |
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