CN113063286A - Automatic control system for corn drying - Google Patents
Automatic control system for corn drying Download PDFInfo
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- CN113063286A CN113063286A CN202110398452.XA CN202110398452A CN113063286A CN 113063286 A CN113063286 A CN 113063286A CN 202110398452 A CN202110398452 A CN 202110398452A CN 113063286 A CN113063286 A CN 113063286A
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- drying
- tower body
- drying tower
- humidity sensor
- temperature
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
- F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
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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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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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
- F26B21/003—Supply-air or gas filters
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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
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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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
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
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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
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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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
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
Abstract
The invention provides an automatic control system for corn drying, wherein a feeding box at the top of a drying tower body is communicated with the drying tower body through a quantitative feeding valve; the drying tower body is internally provided with material blocking rings, and layer gaps are formed among the material blocking rings; the inner wall of the drying tower body is provided with an angle-adjustable material lifting plate group; an air heater inside the drying tower body is positioned at the bottom of the last material blocking ring layer; a discharge port temperature and humidity sensor is arranged at the discharge port; a horizontal conveying belt is arranged at the bottom of the discharge port; the PLC receives the detection information of the temperature and humidity sensor in the tower, the temperature and humidity sensor outside the tower and the temperature and humidity sensor at the discharge port, and automatically controls the opening of the quantitative feeding valve, the working frequency of the air heater, the lifting angle of the angle-adjustable lifting plate group and the transmission speed of the horizontal conveying belt. According to the invention, the internal structure of the drying tower is improved, so that the problems of coking caused by dead corners and uneven heating of the corns are prevented, and the automatic joint control capability of multiple parts of the drying tower is enhanced by combining the arrangement of the temperature and humidity sensor.
Description
Technical Field
The invention relates to the technical field of grain drying equipment, in particular to an automatic corn drying control system.
Background
The corn is a grain crop and a high-quality forage crop, the corn planting area and the yield are increased and improved year by year, so that the corn drying demand is increased year by year, but the corn drying technology has problems in production and application to different degrees, such as poor performance of a dryer, reduced quality of the dried grain food and the like, and the main reasons are as follows:
1. the grain drying tower has an unreasonable structure, the grain in the drying chamber is heated and has dead angles, and the existing grain inlet and outlet modes are easy to cause the damage of the grain and the like.
2. The automatic control level of the domestic grain dryer is low, and the key points of the automatic control system for grain drying are automatic monitoring of grain moisture, automatic control of drying medium temperature and automatic adjustment of grain discharge speed.
For the reasons, the actual effect of the automatic control system is greatly influenced, the instability of the processing capacity of the grain dryer and the waste of energy are caused artificially, the drying quality of grains is not guaranteed, the actual requirement of production cannot be met, and most automatic control systems for grain drying become furnishings.
Therefore, how to provide a corn drying control system with reasonable structure and high automation degree is a problem that needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of the above, the invention provides an automatic control system for corn drying, which improves the internal structure of a corn drying tower, so that the corn drying process is more uniform, the coking problem caused by dead corners and uneven heating of the corn is prevented, and the automatic linkage control capability of multiple parts of a drying tower body is enhanced by combining the arrangement of a temperature and humidity sensor.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic control system for corn drying comprises a drying tower body, a feeding box, an air heater, a horizontal conveying belt and a PLC (programmable logic controller); wherein:
the top of the drying tower body is provided with the feeding box, and the feeding box is communicated with the drying tower body through a quantitative feeding valve;
a plurality of layers of material blocking rings are arranged at the radial middle position in the drying tower body, and layer gaps are formed among the material blocking rings; a temperature and humidity sensor in the drying tower body is arranged inside the drying tower body, and a temperature and humidity sensor outside the drying tower body is arranged outside the drying tower body;
a plurality of angle-adjustable material lifting plate groups are arranged on the inner wall of the drying tower body;
an air heater is arranged in the drying tower body and is positioned at the bottom of the material blocking ring of the last layer;
the bottom end of the drying tower body is provided with the discharge hole, and a discharge hole temperature and humidity sensor is arranged at the discharge hole; the bottom of the discharge hole is provided with the horizontal conveying belt;
the PLC receives the detection information of the temperature and humidity sensor in the tower, the temperature and humidity sensor outside the tower and the discharge port temperature and humidity sensor, and automatically controls the opening of the quantitative feed valve, the working frequency of the air heater, the lifting angle of the angle-adjustable lifting plate group and the transmission speed of the horizontal conveying belt.
The improved structure of the baffle ring and the angle-adjustable lifting plate group in the drying tower body enables corns to be uniformly dispersed in the tower body for drying, and the angle-adjustable function of the lifting plate can effectively prevent the generation of grain heating dead angles. Quantitative feed valve, angularly adjustable lifting plate group, air heater and horizontal conveyor all can realize the automatically regulated of integration, have guaranteed the coordinated control in feeding, stoving, ejection of compact three stage.
Preferably, a plurality of air holes are uniformly distributed on the material blocking ring, and the aperture of each air hole is smaller than the particle size of the corn kernels; the top of the material blocking ring at the top layer is sealed. The air holes enable drying hot air flow generated by the air heater to be uniformly dispersed into the tower and fully contacted with the corn, so that the problem of corn coking caused by local overheating is prevented.
Preferably, the material blocking ring is of a cone structure, and the inner diameter of the top of the cone is smaller than that of the bottom of the cone. The shape of awl section of thick bamboo more is favorable to the maize whereabouts to can form the layer clearance when covering stacking between each layer material ring, the circulation of the hot gas stream of being convenient for dry along awl section of thick bamboo clearance increases the stoving dynamics.
Preferably, the angle-adjustable material lifting plate group comprises a driving plate, a driven plate, a linkage rod and an electric telescopic rod; wherein the content of the first and second substances,
the driving plate and the driven plate are hinged with the inner wall of the drying tower body, and the driving plate and the driven plate are arranged up and down along the axial direction of the drying tower body;
the driving plate and the driven plate are movably connected with the linkage rod;
the electric telescopic rod is connected with one side surface of the driving plate, which faces the driven rod, in a sliding manner;
the PLC controller is electrically connected with the electric telescopic rod.
The angle change of two striker plates of an electric telescopic handle synchro control has saved equipment cost when, has increased the control function of PLC controller to the striker plate, has increased the adaptability of drying tower inner structure to the different stoving circumstances.
Preferably, the linkage rod is hinged between the driving plate and the driven plate; or the like, or, alternatively,
the driven plate is provided with a sliding groove, and one end of the linkage rod connected with the driven plate is provided with a first sliding block matched with the sliding groove.
Preferably, a slide rail is arranged on one side face, facing the driven rod, of the driving plate, and a second slide block matched with the slide rail is arranged at the front end of the electric telescopic rod.
Preferably, the air heater is externally coated with a protective cover, and the protective cover extends into the bottommost material blocking ring. The safety cover can prevent that the maize from dropping to air heater on, has improved the yield.
Preferably, a plurality of partition plates are arranged inside the discharge port, and a discharge channel is formed between the partition plates; the bottom end of the discharge port is connected with the arc-shaped feeding pipe, the arc-shaped feeding pipe is bent towards the conveying direction of the horizontal conveying belt, and the length of the upper side pipe orifice wall is smaller than that of the lower side pipe orifice wall; the horizontal conveying belt is provided with a vibration sensor, the vibration sensor is electrically connected with the PLC, and the PLC controls the rotating speed of the conveying motor according to the detection data of the vibration sensor. The structure of the discharging channel enables the drying tower not to be blocked during discharging, and the drying effect can be guaranteed. Arc conveying pipe has increased the circulation of maize ejection of compact, further prevents the jam phenomenon from appearing, and the conveying of arc pay-off structure collocation horizontal conveyor belt, and vibration sensor detects the vibratory pressure value or the vibration frequency value of maize on the conveyer belt, all is used for preventing to cause the damage of maize when the maize ejection of compact.
Preferably, the air heater is communicated to an external air inlet through a fan, and an air filter is arranged at the external air inlet; and the PLC receives the detection data of the temperature and humidity sensor in the tower, compares the detection data with a set threshold value, and adjusts the working frequency of the air heater and the fan.
Preferably, the PLC controller receives the detection data of the outside-tower temperature and humidity sensor and the discharge port temperature and humidity sensor, calculates a difference between the two detection data, compares the difference with a set threshold, and adjusts the opening and closing range of the quantitative feed valve according to the current discharge speed.
Through the technical scheme, compared with the prior art, the invention has the beneficial effects that:
the modified drying tower structure can effectively solve the problem that dead angles exist when grains in the drying tower are heated; the quantitative feeding valve, the angle-adjustable material lifting plate group, the air heater and the horizontal conveying belt can be integrally and automatically adjusted through the PLC, and linkage control of feeding, drying and discharging stages is guaranteed; and the phenomena of blockage of a discharge port and breakage of corn discharge are relieved, the drying performance is improved on the whole, and the corn drying quality is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts;
FIG. 1 is a schematic structural diagram of an automatic control system for drying corn according to an embodiment of the present invention;
fig. 2 is a partial sectional view of a material stop ring provided in the embodiment of the invention;
fig. 3 is a schematic structural diagram of an angle-adjustable lifter plate group provided in an embodiment of the present invention.
Detailed Description
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.
Referring to fig. 1, it is a schematic view of the overall structure of an automatic control system for corn drying disclosed in this embodiment. Comprises a drying tower body 1, a feeding box 2, an air heater 6, a horizontal conveyer belt 8 and a PLC controller; the top of the drying tower body 1 is provided with a feeding box 2, and the feeding box 2 is communicated with the drying tower body 1 through a quantitative feeding valve 3; a plurality of layers of material blocking rings 4 are arranged at the radial middle position inside the drying tower body 1, and layer gaps are formed among the material blocking rings 4; a temperature and humidity sensor 11 in the drying tower body 1 is arranged inside the drying tower body 1, and a temperature and humidity sensor 10 outside the drying tower body 1 is arranged outside the drying tower body; a plurality of angle-adjustable material lifting plate groups 5 are arranged on the inner wall of the drying tower body 1; an air heater 6 is arranged in the drying tower body 1, and the air heater 6 is positioned at the bottom of the material blocking ring 4 of the last layer; the bottom end of the drying tower body 1 is provided with a discharge port 7, and a discharge port temperature and humidity sensor 12 is arranged at the discharge port 7; a horizontal conveying belt 8 is arranged at the bottom of the discharge port 7; the PLC receives the detection information of the temperature and humidity sensor 11 in the tower, the temperature and humidity sensor 10 outside the tower and the temperature and humidity sensor 12 at the discharge port, and automatically controls the opening of the quantitative feeding valve 3, the working frequency of the air heater 6, the lifting angle of the angle-adjustable lifting plate group 5 and the transmission speed of the horizontal conveying belt 8.
The drying process of the invention is as follows:
treat that the stoving maize gets into stoving tower body 1 inside from feed box 2, through the aperture control feeding volume of quantitative feed valve 3, the aperture is adjusted by the detection information control of PLC controller according to temperature and humidity sensor 10 outside the tower and discharge gate temperature and humidity sensor 12:
when the difference between the humidity value outside the tower and the humidity value at the discharge port is larger than the preset difference, which indicates that the drying is not thorough, the opening degree of the quantitative feeding valve 3 is reduced, the raising angle (approaching to 90 degrees) of the angle-adjustable raising plate group 5 is increased, and the working frequency of the air heater is increased, so that the corns are fully dried in the tower;
when the difference between the outside-tower humidity value and the discharge port humidity value is smaller than the preset difference and/or the difference between the outside-tower temperature value and the discharge port temperature value is larger than the preset difference, which indicates that the temperature is too high and scorched particles are easy to generate, the opening degree of the quantitative feeding valve 3 is increased, the lifting angle (approaching to 30 ℃) of the angle-adjustable lifting plate group 5 is reduced, the working frequency of the air heater is reduced, and the corn discharge quality is improved.
After the corns enter the interior of the drying tower body 1, the corns are scattered to fall from top to bottom all around along the material blocking ring 4 under the action of the multilayer material blocking ring 4, and the corns are lifted by the blocking of the angle-adjustable material lifting plate group 5 in the falling process, so that the drying force is increased. The hot drying air flow generated by the air heater 6 at the bottom of the material blocking ring 4 rises from bottom to top, diffuses into the drying tower body 1 through the gaps of 4 layers of the material blocking ring, and dries the corn between the material blocking ring 4 and the inside of the drying tower body.
The drying process is through the angle of raising of adjustable lifting plate group 5 of angle regulation, increases the vortex of stoving hot gas flow to prevent to be heated the dead angle, the accommodation process can set up to periodic regulation through the PLC controller, also can adjust in real time through temperature and humidity sensor's in the tower detection information.
The maize of accomplishing of drying is delivered to the horizontal conveyor through the discharge gate and is taken, realizes the cooling of high temperature maize when transmitting, prevents that the maize from appearing mildening and rot.
In one embodiment, the air heater 6 is connected to an outside air inlet provided with an air filter by a fan 61.
The PLC controller receives the detection data of the tower internal temperature and humidity sensor 11, compares the detection data with a set threshold, and adjusts the operating frequencies of the air heater 6 and the fan 61.
Referring to fig. 2, in an embodiment, a plurality of air holes 41 are uniformly distributed on the material blocking ring 4, the drying hot air flow is diffused into the drying tower body 1 through the air holes 41, it is required to ensure that the aperture of the air holes 41 is smaller than the particle size of the corn kernels, the top of the material blocking ring 4 on the top layer is sealed, the corn is prevented from falling into the cone of the material blocking ring and is overheated by an air heater, so that scorched particles are generated, and the corn is not easy to be discharged from the discharge hole.
In this embodiment, the material blocking ring 4 is erected on the inner wall of the drying tower body 1 through two connecting pieces 42. The connecting piece 42 and the angle-adjustable lifting plate group 5 are arranged in a staggered mode, and interference on angle adjustment of the angle-adjustable lifting plate group 5 is avoided.
In one embodiment, the material blocking ring 4 is of a cone-shaped structure, and the inner diameter of the top of the cone-shaped structure is smaller than that of the bottom of the cone-shaped structure. The shape of a cone is more favorable to the maize whereabouts to can form the layer clearance when covering and stacking between each layer material retaining ring 4, the circulation of the hot gas flow of being convenient for along a cone clearance increases the stoving dynamics.
In one embodiment, the air heater 6 is communicated with an air distributor, so that the air entering the conical cylinder of the material blocking ring is further uniformly distributed.
In one embodiment, the angle-adjustable lifting plate set 5 comprises a driving plate 51, a driven plate 52, a linkage 53 and an electric telescopic rod 54; the driving plate 51 and the driven plate 52 are hinged with the inner wall of the drying tower body 1, and the driving plate 51 and the driven plate 52 are arranged up and down along the axial direction of the drying tower body 1; a linkage rod 53 is movably connected between the driving plate 51 and the driven plate 52; the electric telescopic rod 54 is connected with one side surface of the driving plate 51 facing the driven rod in a sliding way; the PLC controller is electrically connected to the electric telescopic rod 54.
In this embodiment, a linkage 53 is hinged between the driving plate 51 and the driven plate 52.
In this embodiment, the driven plate 52 is provided with a sliding slot 56, and one end of the linkage rod 53 connected to the driven plate 52 is provided with a first sliding block 57 matched with the sliding slot 56.
One side of the driving plate 51 facing the driven rod is provided with a slide rail 55, and the front end of the electric telescopic rod 54 is provided with a second slide block 58 matched with the slide rail 55.
Referring to fig. 3, in this embodiment, the PLC controller sends a telescopic control signal to the electric telescopic rod 54, the electric telescopic rod 54 extends, and under the sliding fit between the second sliding block 58 and the sliding rail 55, the driving plate 51 is lifted up, and under the pulling action of the linkage 53, the first sliding block 57 slides to the front end of the sliding slot 56 of the driven plate 52, so as to pull the driven plate 52 to lift up at the same angle.
The angle change of the two striker plates is synchronously controlled by one electric telescopic rod 54, so that the equipment cost is saved, the control function of the PLC on the striker plates is increased, and the adaptability of the internal structure of the drying tower to different drying conditions is increased.
In one embodiment, the air heater 6 is externally covered by the protective cover 63, the protective cover 63 extends into the lowermost material blocking ring 4, and the top of each material blocking ring 4 is located inside the adjacent material blocking ring 4, so as to form an integral sleeving structure.
In one embodiment, a plurality of partition plates 71 are arranged inside the discharge port 7, and discharge channels are formed among the partition plates 71; the bottom end of the discharge port 7 is connected with an arc-shaped feeding pipe 72, the arc-shaped feeding pipe 72 bends towards the conveying direction of the horizontal conveying belt 8, and the length of the upper side pipe orifice wall is smaller than that of the lower side pipe orifice wall; the horizontal conveying belt 8 is provided with a vibration sensor 13, the vibration sensor 13 is electrically connected with a PLC (programmable logic controller), and the PLC controls the rotating speed of the conveying motor according to the detection data of the vibration sensor 13. The structure of the discharging channel enables the drying tower not to be blocked during discharging, and the drying effect can be guaranteed. Arc conveying pipe 72 has increased the circulation of maize ejection of compact, further prevents the jam phenomenon from appearing, and the conveying of arc pay-off structure collocation horizontal conveyor belt 8, and vibration sensor 13 detects the vibration pressure value or the vibration frequency value of maize on the conveyer belt, all is used for preventing to cause the damage of maize when the maize ejection of compact.
The corn drying automatic control system provided by the invention is described in detail, the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An automatic control system for corn drying is characterized by comprising a drying tower body, a feeding box, an air heater, a horizontal conveying belt and a PLC (programmable logic controller); wherein:
the top of the drying tower body is provided with the feeding box, and the feeding box is communicated with the drying tower body through a quantitative feeding valve;
a plurality of layers of material blocking rings are arranged at the radial middle position in the drying tower body, and layer gaps are formed among the material blocking rings; a temperature and humidity sensor in the drying tower body is arranged inside the drying tower body, and a temperature and humidity sensor outside the drying tower body is arranged outside the drying tower body;
a plurality of angle-adjustable material lifting plate groups are arranged on the inner wall of the drying tower body;
an air heater is arranged in the drying tower body and is positioned at the bottom of the material blocking ring of the last layer;
the bottom end of the drying tower body is provided with the discharge hole, and a discharge hole temperature and humidity sensor is arranged at the discharge hole; the bottom of the discharge hole is provided with the horizontal conveying belt;
the PLC receives the detection information of the temperature and humidity sensor in the tower, the temperature and humidity sensor outside the tower and the discharge port temperature and humidity sensor, and automatically controls the opening of the quantitative feed valve, the working frequency of the air heater, the lifting angle of the angle-adjustable lifting plate group and the transmission speed of the horizontal conveying belt.
2. The automatic corn drying control system of claim 1, wherein a plurality of air holes are uniformly distributed on the material blocking ring, and the aperture of each air hole is smaller than the particle size of the corn kernels; the top of the material blocking ring at the top layer is sealed.
3. The corn drying automatic control system according to claim 2, wherein the material blocking ring is of a cone structure, and the inner diameter of the top of the cone is smaller than the inner diameter of the bottom of the cone.
4. The automatic control system for corn drying according to claim 1, wherein the angle-adjustable lifting plate set comprises a driving plate, a driven plate, a linkage rod and an electric telescopic rod; wherein the content of the first and second substances,
the driving plate and the driven plate are hinged with the inner wall of the drying tower body, and the driving plate and the driven plate are arranged up and down along the axial direction of the drying tower body;
the driving plate and the driven plate are movably connected with the linkage rod;
the electric telescopic rod is connected with one side surface of the driving plate, which faces the driven rod, in a sliding manner;
the PLC controller is electrically connected with the electric telescopic rod.
5. The automatic control system for corn drying according to claim 4, wherein the linkage rod is hinged between the driving plate and the driven plate; or the like, or, alternatively,
the driven plate is provided with a sliding groove, and one end of the linkage rod connected with the driven plate is provided with a first sliding block matched with the sliding groove.
6. The automatic control system for corn drying according to claim 4, wherein a slide rail is arranged on one side surface of the driving plate facing the driven rod, and a second slide block matched with the slide rail is arranged at the front end of the electric telescopic rod.
7. The automatic control system for corn drying according to claim 1, wherein the air heater is externally covered with a protective cover, and the protective cover extends into the lowest material blocking ring.
8. The automatic corn drying control system according to claim 1, wherein a plurality of partition plates are arranged inside the discharge port, and a discharge channel is formed between the partition plates; the bottom end of the discharge port is connected with the arc-shaped feeding pipe, the arc-shaped feeding pipe is bent towards the conveying direction of the horizontal conveying belt, and the length of the upper side pipe orifice wall is smaller than that of the lower side pipe orifice wall; the horizontal conveying belt is provided with a vibration sensor, the vibration sensor is electrically connected with the PLC, and the PLC controls the rotating speed of the conveying motor according to the detection data of the vibration sensor.
9. The automatic control system for drying corn as claimed in claim 1, wherein the air heater is connected to an external air inlet through a blower, and an air filter is arranged at the external air inlet; and the PLC receives the detection data of the temperature and humidity sensor in the tower, compares the detection data with a set threshold value, and adjusts the working frequency of the air heater and the fan.
10. The automatic corn drying control system according to claim 1, wherein the PLC receives the detection data of the temperature and humidity sensor outside the tower and the temperature and humidity sensor at the discharge port, calculates a difference value of the two detection data, compares the difference value with a set threshold value, and adjusts the opening and closing amplitude of the quantitative feed valve according to the current discharge speed.
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| CN202110398452.XA CN113063286A (en) | 2021-04-14 | 2021-04-14 | Automatic control system for corn drying |
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| CN202110398452.XA CN113063286A (en) | 2021-04-14 | 2021-04-14 | Automatic control system for corn drying |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685767A (en) * | 2024-02-01 | 2024-03-12 | 中建环能科技股份有限公司 | Tube type heat exchange device |
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| CN201514094U (en) * | 2009-07-20 | 2010-06-23 | 王增禄 | Drying tower |
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| CN108212360A (en) * | 2018-03-23 | 2018-06-29 | 中材建设有限公司 | Suitable for the adjustable grate plate frame of tube mill bilayer grate plate |
| CN208779883U (en) * | 2018-08-23 | 2019-04-23 | 安徽有通玻璃有限公司 | A kind of glass raw material drying deironing apparatus |
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| US20110119947A1 (en) * | 2008-07-25 | 2011-05-26 | Otalicio Pacheco Da Cunha | High performance grain dryer |
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| CN102003869A (en) * | 2010-11-17 | 2011-04-06 | 河南省德耀机械制造有限公司 | Vertical double-cylinder drier |
| CN102230721A (en) * | 2011-06-10 | 2011-11-02 | 河南省德耀机械制造有限公司 | Split-type vertical drying tower |
| CN202853302U (en) * | 2012-09-24 | 2013-04-03 | 邵军 | Vertical type dryer |
| CN203100409U (en) * | 2013-03-04 | 2013-07-31 | 河南省德耀节能科技有限公司 | Double-barrel upright drying machine capable of quantitative discharging |
| CN108212360A (en) * | 2018-03-23 | 2018-06-29 | 中材建设有限公司 | Suitable for the adjustable grate plate frame of tube mill bilayer grate plate |
| CN208779883U (en) * | 2018-08-23 | 2019-04-23 | 安徽有通玻璃有限公司 | A kind of glass raw material drying deironing apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117685767A (en) * | 2024-02-01 | 2024-03-12 | 中建环能科技股份有限公司 | Tube type heat exchange device |
| CN117685767B (en) * | 2024-02-01 | 2024-04-19 | 中建环能科技股份有限公司 | Tube type heat exchange device |
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Application publication date: 20210702 |