CN113503695A - Method for quickly and dynamically drying materials and dynamic dryer - Google Patents

Method for quickly and dynamically drying materials and dynamic dryer Download PDF

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Publication number
CN113503695A
CN113503695A CN202110841760.5A CN202110841760A CN113503695A CN 113503695 A CN113503695 A CN 113503695A CN 202110841760 A CN202110841760 A CN 202110841760A CN 113503695 A CN113503695 A CN 113503695A
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CN
China
Prior art keywords
drying
flow
oven
dryness
hot air
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Pending
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CN202110841760.5A
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Chinese (zh)
Inventor
何光赞
林仁斌
高胜
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Sichuan Jieneng Drying Equipment Co ltd
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Sichuan Jieneng Drying Equipment Co ltd
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Priority to CN202110841760.5A priority Critical patent/CN113503695A/en
Publication of CN113503695A publication Critical patent/CN113503695A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/02Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/14Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by trays or racks or receptacles, which may be connected to endless chains or belts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001Drying-air generating units, e.g. movable, independent of drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08Humidity
    • F26B21/086Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001Handling, e.g. loading or unloading arrangements
    • F26B25/003Handling, e.g. loading or unloading arrangements for articles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/22Controlling the drying process in dependence on liquid content of solid materials or objects
    • F26B25/225Controlling the drying process in dependence on liquid content of solid materials or objects by repeated or continuous weighing of the material or a sample thereof

Abstract

The invention belongs to the technical field of material drying, and particularly relates to a method for quickly and dynamically drying materials and improvement and application of a dynamic dryer; through the above scheme, the material that will contain places on material transport mechanism, and utilize material transport mechanism to drive the charging tray that contains the material and move in the through-flow hot-blast stream, utilize humidity to detect simultaneously and judge the drying degree of module to the material and detect and judge, realized letting material transport mechanism drive the charging tray that contains the material and carry out cyclic motion and then reach the purpose of drying in the through-flow hot-blast stream, solved current tunnel type drying-machine and advection formula drying-machine and dried the inhomogeneous technical defect of material stoving that exists at the drying process. In addition, the invention can enable the material being dried to move along with the material transfer mechanism, so that the material can continuously and circularly move in the through-flow type hot air flow in the drying chamber, and the aim of quickly drying the material is fulfilled.

Description

Method for quickly and dynamically drying materials and dynamic dryer
Technical Field
The invention belongs to the technical field of material drying, and particularly relates to a method for quickly and dynamically drying materials and improvement and application of a dynamic dryer.
Background
In the prior art, the drying of material mostly adopts the drying-machine to realize. When the materials are dried, the materials to be dried are firstly placed in a dryer, and then heat sources are supplied into the dryer by utilizing equipment such as a heat pump, and the like, so that the aim of drying the materials is fulfilled. In the material drying process, the process of feeding and discharging is time-consuming and labor-consuming.
In the prior art, a common hot air flow supply method comprises a horizontal flow type air supply technology and a cross flow type air supply technology, the horizontal flow type air supply method is simple in structure and convenient to operate, but the heat supply mode has the technical defects that the heat of an air inlet end is high, the temperature of an air outlet end is low, and materials are dried unevenly. And the cross-flow air supply effectively solves the problems. In addition, in the prior art, when materials are loaded and unloaded, a manual loading and unloading method is generally adopted, meanwhile, the materials are still placed in the dryer in the drying process, although partial technologies in the prior art propose that the materials are moved in the drying process, the technical defect that the materials are not uniformly dried still exists in the prior art, and in order to solve the technical defect, the application provides a method for rapidly and dynamically drying the materials and a dynamic dryer.
Disclosure of Invention
The invention aims to provide a method for quickly and dynamically drying materials and a dynamic dryer.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the method for quickly and dynamically drying the materials comprises the following steps:
s1, feeding a material flatly laid on the material transfer mechanism into a through-flow hot air flow by using drying equipment;
s2, the material transfer mechanism drives the material S1 to form a through-flow hot air flow to circularly move and dry;
s3, detecting and judging the dryness of the material;
if the dryness of the material does not reach the standard, the step enters S2, and if the dryness of the material reaches the standard, the step enters S4;
and S4, taking the material obtained in the step S3 out of the drying equipment.
In order to illustrate the method more clearly, as a further optimization of the above scheme, the process of detecting and judging the dryness of the material in step S3 includes the following steps:
s31, measuring and recording the initial mass of the material placed on the material transfer mechanism as m0
S32, performing quality detection on the material obtained in the S2 at least twice at different times and recording the quality as ma1、ma2
S33, respectively calculating ma1、ma2And m0Difference δ m between1、δm2
S34, determining δ m1And δ m2If the difference between the delta m is the same, if the delta m is larger than the threshold value1And δ m2If the difference between the two values is the same, the dryness of the material reaches the standard, and if the value is delta m1And δ m2The difference between the two is different, so that the dryness of the material does not reach the standard.
As a further optimization of the above scheme, the process of detecting and determining the dryness of the material in step S3 includes the following steps:
s31, detecting the initial humidity of the material placed on the material transfer mechanism by using the humidity detection sensor and recording the initial humidity as A0
S32, carrying out humidity detection on the material obtained in the step S2 at least twice at different times and recording the humidity detection as A1、A2
S33, calculating A respectively1、A2And A0Difference between themA1、A2
S34, determining delta A1And δ A2If the difference between delta A and delta A is the same1And δ A2If the difference between the two values is the same, the dryness of the material reaches the standard, and if delta A is adopted1And δ A2The difference between the two is different, so that the dryness of the material does not reach the standard.
The utility model provides a dynamic formula drying-machine, includes material transfer mechanism, be provided with a plurality of wind holes on the material transfer mechanism, material transfer mechanism sets up in the oven, the oven internal supply is provided with the STREAMING hot-blast stream, the material of treating the stoving of placing on the material transfer mechanism is dried to the STREAMING hot-blast stream.
As a further optimization of the above scheme, be provided with at least one horizontal transfer part in the oven, a plurality of charging trays have been placed in the last tiling of horizontal transfer part, each all place the material that remains to be dried in the charging tray, the last fixed humidity that is provided with of horizontal transfer part detects the humidity of the material in each charging tray by humidity detection sensor, horizontal transfer part drives each charging tray and is horizontal reciprocating motion in the through-flow type hot-blast stream.
As a further optimization of the above scheme, two ends of the horizontal transfer component are respectively provided with a lifting component connected with the upper layer and the lower layer, the lifting components are positioned in the cross-flow hot air flow, and the materials in the material tray circularly move under the combined action of the horizontal moving component and the lifting components.
As a further optimization of the scheme, the horizontal transfer component comprises two conveying belts which are sleeved on the driving wheels simultaneously from the driving wheels and two ends, the material tray is sequentially paved on the conveying belts, one of the conveying belts is connected with a driving motor in a rotating shaft of the driving wheel, the driving motor is fixedly arranged on the outer side surface of the drying oven, the air holes are formed in the conveying belts, and the conveying belts are provided with dryers which are used for absorbing water vapor in the flow-through hot air flow.
As a further optimization of the above scheme, at least one hole is respectively formed in the top end and the bottom end of the oven, a heating box is arranged on the outer side surface of the oven, the top end and the bottom end of the heating box are simultaneously communicated with the hole, a heater is arranged in the heating box, and the heater provides high-temperature low-humidity flow-through hot air flow for the inside of the oven.
As a further optimization of the scheme, a fan is arranged at the communication position of the heating box and the through hole of the oven, and the fan sends the high-humidity hot air flow exhausted by the oven into the heating box.
As a further optimization of the above scheme, a dehumidifier is further arranged in the heating box body between the heater and the fan, and moisture in the high-humidity hot air flow blown out by the fan is removed by the dehumidifier.
The invention has the following beneficial effects:
1. according to the invention, the material containing mechanism is placed on the material transferring mechanism, the material transferring mechanism is used for driving the material tray placed on the material transferring mechanism and containing the material to move in the through-flow hot air flow, and the humidity detection and judgment module is used for detecting and judging the drying degree of the material, so that the purpose that the material transferring mechanism drives the material tray containing the material to circularly move in the through-flow hot air flow so as to dry is realized, and the technical defect of uneven drying of the material in the drying process of the traditional tunnel type dryer and the horizontal flow type dryer is effectively overcome.
2. According to the dryer, the drying oven is arranged, the material transfer mechanism is arranged in the drying oven, and the material tray containing materials is placed on the material transfer mechanism, so that the materials being dried can move along with the material transfer mechanism when the dryer is used, the materials on the material transfer mechanism can continuously move in the through-flow type hot air flow in the drying cavity, and finally the purpose of quickly drying the materials is achieved.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a flow chart of dryness determination according to the present invention;
FIG. 3 is a flow chart of another dryness determination according to the present invention;
FIG. 4 is a schematic view of the overall structure of the present invention;
FIG. 5 is a dynamic tray transfer mechanism of the present invention;
FIG. 6 is a schematic view of the cross-sectional structure A-A of the present invention;
FIG. 7 is a schematic view of the cross-sectional structure B-B of the present invention;
FIG. 8 is a schematic view of the initial motion configuration of the present invention;
FIG. 9 is a schematic diagram of the lifting member of FIG. 8 after moving down one row;
FIG. 10 is a schematic view of the lifting member of FIG. 9 moving to the bottom end;
fig. 11 is a schematic view of the lifting member of fig. 10 moving to the top end.
Description of the drawings: 1-material transfer mechanism, 2-oven, 3-horizontal transfer component, 4-material tray, 5-material, 6-humidity detection sensor, 7-lifting component, 8-driven wheel, 9-conveying belt, 10-driving motor, 11-dryer, 12-hole, 13-heating box, 14-heater, 15-fan, 16-dehumidifier, 17-conveying chain roller, 18-lifter, 19-material transfer platform, 20-guide shaft, 21-conveying belt, 22-common roller, 23-support and 24-common motor.
Detailed Description
The present invention will be described in detail and with reference to preferred embodiments thereof, but the present invention is not limited thereto.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
The terms "upper", "lower", "left", "right", "inner", "outer", and the like, refer to orientations or positional relationships based on orientations or positional relationships illustrated in the drawings or orientations and positional relationships that are conventionally used in the practice of the products of the present invention, and are used for convenience in describing and simplifying the invention, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the invention.
Furthermore, the terms "vertical" and the like do not require absolute perpendicularity between the components, but may be slightly inclined. Such as "vertical" merely means that the direction is relatively more vertical and does not mean that the structure must be perfectly vertical, but may be slightly inclined.
In the description of the present invention, it is also to be noted that the terms "disposed," "mounted," "connected," and the like are to be construed broadly unless otherwise specifically stated or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1, the method for rapidly and dynamically drying materials includes the following steps:
s1, feeding the material 5 flatly laid on the material transfer mechanism 1 into a through-flow hot air flow by using a drying device;
s2, the material transfer mechanism drives the material S1 to form a through-flow hot air flow to circularly move and dry;
s3, detecting and judging the dryness of the material 5;
if the dryness of the material does not reach the standard, the step enters S2, and if the dryness of the material reaches the standard, the step enters S4;
and S4, taking the material obtained in the step S3 out of the drying equipment.
It should be noted that the method of the present invention is mainly applied to the following types: drying the materials 5 which are inconvenient to turn over in the drying process (as an example, the materials 5 which are inconvenient to turn over comprise but are not limited to medlar, grapes and the like); and drying the materials 5 which are relatively hard and need to be dried at variable temperature (for example, the materials 5 which are relatively hard and need to be dried at variable temperature include, but are not limited to, pepper, aniseed, apricot, Chinese medicinal materials and the like).
In order to more clearly and clearly illustrate the method of the present invention, the present embodiment will be described in detail by taking the case of drying the inconvenient material 5 as an example: firstly, a material 5 to be dried is flatly laid on the material transfer mechanism 1, and then a through-flow high-temperature hot air flow is introduced from bottom to top to the material transfer mechanism 1 on which the material 5 is flatly laid. The cross-flow high-temperature hot air flow sequentially passes through the material 5 transfer mechanism and the material 5 to be dried, free water and combined water in the material 5 to be dried are heated into free water vapor, and the free water vapor is finally discharged to the outside along with the cross-flow hot air flow. Meanwhile, when the through-flow high-temperature hot air flow passes through the material transfer mechanism 1 and the material 5, the material transfer mechanism 1 drives the material 5 to be dried to do circulating motion in the through-flow high-temperature hot air flow. Through the process, when the material 5 to be dried is dried by using the drying device, the aim of quickly and uniformly drying the material 5 to be dried is fulfilled; in addition, through the circulating motion function of the material transfer mechanism 1, the materials 5 placed on the material transfer mechanism 1 can be dried by the through-flow high-temperature hot air flow with the same humidity and the same temperature, so that the technical defect that the materials 5 are dried unevenly in the drying process of the conventional tunnel type dryer and the horizontal flow type dryer is overcome.
It should be particularly noted and clearly explained that, in the present embodiment, the circulation motion of the material 5 transferring structure in the through-flow high-temperature hot wind flow includes two modes of horizontal circulation motion and vertical circulation motion. The drying equipment is a dryer or an oven structure with a heat pump.
As a preferred embodiment, in this embodiment, the material transfer mechanism 1 is used to drive the material 5 to be dried to perform a circulating motion in the through-flow high-temperature hot air flow, so that the material 5 to be dried is not fixed in the conventional tunnel-type or horizontal-flow type dryer as well as the conventional tunnel-type or horizontal-flow type dryer is used to dry the material 5, and meanwhile, the dryness of the material 5 in the drying process is detected in real time, so that the drying degree of the material 5 does not need to be artificially determined when the material 5 is dried, and the purpose of drying the material 5 to be dried in the through-flow high-temperature hot air flow is effectively achieved.
In order to illustrate the method more clearly, as a further optimization of the above scheme, the process of detecting and judging the dryness of the material in step S3 includes the following steps:
s31, measuring and recording the initial mass of the material 5 placed on the material transfer mechanism 1 as m0
S32, performing quality detection on the material 5 obtained in the S2 at least twice in different time periods and recording the quality as ma1、ma2
S33, respectively calculating ma1、ma2And m0Difference δ m between1、δm2
S34, determining δ m1And δ m2If the difference between the delta m is the same, if the delta m is larger than the threshold value1And δ m2The same difference between them, the dryness of the material 5 has reached the standard, if δ m1And δ m2The difference between the two is different, the dryness of the material 5 does not reach the standard.
As a preferred embodiment, as shown in fig. 2, in this embodiment, the object of quickly determining the drying degree of the material is achieved by measuring and calculating the mass of the material 5.
It should be particularly clear and explained that, as a preferred embodiment, in this embodiment, the method for detecting the quality of a material is a conventional prior art, and the present invention does not involve specific improvements on the quality detection method and the detection structure, and thus, details are not repeated.
As a further optimization of the above scheme, the process of detecting and judging the dryness of the material 5 in step S3 includes the following steps:
s31, detecting the initial humidity of the material 5 by using the humidity detection sensor 6 and recording the initial humidity as A0
S32, carrying out humidity detection on the material 5 obtained in the step S2 for at least two times and recording the humidity detection as A1、A2
S33, calculating A respectively1、A2And A0The difference A between1、A2
S34, determining delta A1And δ A2If the difference between delta A and delta A is the same1And δ A2The same difference between them, the dryness of the mass 5 has reached the standard, if delta A1And δ A2The difference between the two is different, so that the dryness of the material does not reach the standard.
As a preferred embodiment, as shown in fig. 3, in this embodiment, the material 5 to be dried is placed on the material transferring mechanism 1, the humidity of the material 5 placed on the material transferring mechanism 1 is detected, and then a through-flow high-temperature hot air flow is introduced from bottom to top to the material transferring mechanism 1. And circulating the material 5 in the through-flow hot air flow, detecting the humidity of the material 5 again, judging the difference between the humidities, and judging whether the dryness of the material is qualified.
Meanwhile, in the embodiment, the method for detecting the humidity is adopted to judge the dryness of the material, so that the judging efficiency is improved when the drying machine is used, and meanwhile, the method for detecting the humidity is adopted to judge the dryness of the material, so that the drying machine is simple and convenient to operate when the drying machine is used.
It should be particularly clear and explained that the humidity detection sensor described in this embodiment is a conventional prior art, and this embodiment is only applied to the humidity detection sensor, and does not involve improving the structure and the detection principle of the humidity sensor itself, so that details are not described herein. However, it can be exemplified that the humidity detection sensor includes, but is not limited to, the following models: honeywell corporation (type HIH-3602, HIH-3605, HIH-3610), Humirel corporation (type HM1500, HM1520, HF3223, HTF 3223), and Sensoron corporation (type SHT11, SHT 15).
According to the scheme, the material transport mechanism 1 is used for driving the material disc 4 which is placed on the material transport mechanism 1 and contains the materials 5 to move in the through-flow hot air flow, and the humidity detection and judgment module is used for detecting and judging the drying degree of the materials 5, so that the purpose that the material transport mechanism 1 drives the material disc 4 which contains the materials 5 to circularly move in the through-flow hot air flow to dry is achieved, and the technical defect that the materials 5 are dried unevenly in the drying process of the conventional tunnel type dryer and the horizontal flow type dryer is effectively overcome.
Example 2
As a specific application of the above method, the present invention provides another embodiment for implementing the above method, which includes a dynamic dryer for implementing the above method for performing fast dynamic drying on the material 5, and the specific implementation manner is as follows:
referring to fig. 4-11, a dynamic drying machine includes a material transfer mechanism 1, a plurality of air holes are provided on the material transfer mechanism 1, the material transfer mechanism 1 is disposed in an oven 2, a through-flow hot air flow is supplied in the oven 2, and the through-flow hot air flow dries a material 5 to be dried placed on the material transfer mechanism 1.
As a specific structure for implementing the method, in this embodiment, the dynamic dryer is provided with the oven 2, the material transfer mechanism 1 in the oven 2, and the tray 4 containing the material 5 is placed on the material transfer mechanism 1, so that the through-flow high-temperature hot air flow passes through the air holes in the material transfer mechanism 1. When the drying device is used, the material 5 being dried can move along with the material transfer mechanism 1, free water and combined water in the material 5 are evaporated into water vapor after the through-flow high-temperature hot air flow passes through the air holes, and then the material 5 on the material transfer mechanism 1 can continuously move in the through-flow hot air flow in the drying chamber, and finally the purpose of rapidly drying the material 5 is achieved.
It is specifically noted and explained that, as a preferred embodiment, in this example, as shown in fig. 4 to 6, the oven 2 is made of a heat insulating material. It can be exemplified that the insulating material used for manufacturing the oven 2 includes, but is not limited to, the following materials: rock wool panels, glass wool, expanded polystyrene panels, extruded polystyrene panels, polyurethane foam, and the like.
As a further optimization of the above scheme, at least one horizontal transfer component 3 is arranged in the oven 2, a plurality of material trays 4 are flatly laid on the horizontal transfer component 3, materials 5 to be dried are placed in each material tray 4, a humidity detection sensor 6 is fixedly arranged on the horizontal transfer component 3, the humidity of the materials 5 in each material tray 4 is detected by the humidity detection sensor 6, and the horizontal transfer component 3 drives each material tray 4 to do horizontal reciprocating motion in a cross-flow hot air flow.
As a preferred embodiment, in this embodiment, as shown in fig. 4 to 6, a horizontal transfer component 3 is disposed in the oven 2, and a plurality of trays 4 are flatly laid on the horizontal transfer component 3, meanwhile, the trays 4 contain the materials 5 to be dried, and meanwhile, a humidity detection sensor 6 is disposed on the horizontal transfer component 3, so that when the present invention is used, the humidity condition in the oven 2 can be rapidly detected and sensed, and the purpose of detecting the drying degree of the materials 5 to be dried, which are disposed on the horizontal transfer component 3 in the oven 2, in real time is achieved.
It should be specifically noted that, as a preferred embodiment, in this embodiment, the model of the humidity detection sensor 6 is the same as that listed in embodiment 1 of the present invention, and is not described again.
As a further optimization of the above scheme, two ends of the horizontal transfer component 3 are respectively provided with a lifting component 7 connected with the upper layer and the lower layer, the lifting components 7 are positioned in the through-flow hot air flow, and the materials 5 in the material tray 4 are in circular motion under the combined action of the horizontal moving component and the lifting components 7.
As a preferred embodiment, in this embodiment, as shown in fig. 4 to 6, the lifting member 7 includes a lifter 18, the lifter 18 is fixedly disposed in the inner cavity of the oven 2, a material 5 transferring platform is connected to a power output end of the lifter 18, the material 5 transferring platform is slidably connected to a guide shaft 20, the material 5 transferring platform is in contact with one end of each conveyor belt 9, and the guide shaft 20 is vertically disposed in the inner cavity of the oven 2.
5 transport platform of material include conveyer belt 21, the both ends of the inboard of conveyer belt 21 are provided with a ordinary cylinder 22 respectively, ordinary cylinder 22 rotates and sets up on support 23, support 23 and guide shaft 20 sliding connection, one of them be connected with an ordinary motor 24 in the pivot of cylinder, try on ordinary motor 24 and fix and set up on support 23.
It can be exemplified that, as a preferred embodiment, in the present embodiment, the lifting member 7 may be, but is not limited to, the following types: a winch, a screw rod stepping motor driver and the like.
In a preferred embodiment, as shown in fig. 6, the lifting component 7 is provided with a lifter 18, a material 5 transferring platform, a guide shaft 20, and the like, wherein the material 5 transferring platform is slidably arranged on the guide shaft 20, and the lifter 18 is used for lifting or lowering the material 5 transferring platform, so that the purpose of simultaneously lifting or lowering the material 5 transferring platform and the material tray 4 arranged on the material 5 transferring platform is finally achieved.
As a preferred embodiment, in this embodiment, as shown in fig. 7 to 11, the method is described in detail by taking a scenario that the material transfer mechanism 1 performs a vertical circulating motion in a through-flow high-temperature hot wind flow as an example:
first, it should be noted that, in this embodiment, a total of 8 layers of horizontal transfer components 3 are arranged in the same oven 2, two ends of each of the eight layers of horizontal transfer components 3 are respectively provided with one lifting component 7 (the lifting component 7 on the left is defined as a lifting component 7A, and the lifting component 7 on the right is defined as a lifting component 7B), and 49 trays (numbered according to the example in fig. 2) of the material 5 to be dried are placed on the eight layers of horizontal transfer components 3 (the material 5 to be dried is pepper or medlar).
Let in the high-temperature hot-blast stream of STREAMING, open lifting unit 7A simultaneously, the horizontal transfer unit 3 of lifting unit 7B and first layer, the horizontal transfer unit 3 of first layer moves from a left side to the right side, and drive the charging tray 4 on the horizontal transfer unit 3 for the first time and remove, until the 6# charging tray 4 of first layer enters into on the 5 transfer platforms of material of lifting unit 7B, and simultaneously, 0# charging tray 4 on the 5 transfer platforms of material of lifting unit 7A moves to the horizontal transfer unit 3 of first layer from the 5 transfer platforms of material of lifting unit 7A on, close first layer horizontal transfer unit 3. Lifting unit 7A and lifting unit 7B descend simultaneously to the both ends of second floor's horizontal transfer unit 3, start second floor's horizontal transfer unit 3, second floor's horizontal transfer unit 3 moves and drives the charging tray 4 motion on the second floor's horizontal transfer unit 3 from the right side to left side, move to 5 transport platforms of material of lifting unit 7A on 12# charging tray 4 on the second floor's horizontal transfer unit 3, 6# charging tray 4 on 5 transport platforms of material of lifting unit 7B shifts to the horizontal transfer unit 3 on the second floor simultaneously. In the above-described operation, the lifting elements 7A and 7B are sequentially laid from 1 to 8. After the movement of one tier to eight tiers is completed, the lifting members 7A and the lifting members 7B are simultaneously raised to the first tier (at this time, the lifting members 7A carry # 48 tray 4 thereon). The above process is repeated until the O # tray 4 returns to the original position, and at this time, a cycle is completed, that is, each tray 4 stays once in all positions.
According to the above process, the time required for one total cycle and the number of trays 4 and the residence time of each tray 4 in a single position satisfy the following mathematical relationship:
T=tab
wherein T is the total time required for one cycle, T is the time required for moving one tray 4, a is the total number of layers of the horizontal transfer component 3, and b is the total number of trays for placing the materials 5 in one oven 2.
Taking the time required for moving a tray 4 as an example, 10s, based on the above mathematical relationship, it can be known that: the total cycle time required to complete 49 trays of material 5 is: 1h5min20 s.
In conclusion, when the drying device is used for drying the materials 5, the drying time can be adjusted by adjusting the time t required by moving one material disc 4, and the drying time of the materials 5 in the whole drying oven 2 can be adjusted.
It should be particularly clear and explained that, as a preferred embodiment, in the present embodiment, the time t required for moving a tray 4 is adjustable by a PLC, and the technician can set the time according to the moisture content of the dried material 5 and other factors.
As the further optimization of above-mentioned scheme, horizontal transfer part 3 includes that two are all established the conveyer belt 9 on the drive wheel simultaneously from driving wheel 8 and both ends, charging tray 4 tiles in proper order on conveyer belt 9, one of them be connected with driving motor 10 in the pivot of driving wheel 8, driving motor 10 is fixed to be set up on oven 2's lateral surface, the wind hole sets up on the conveyer belt 9, be provided with desicator 11 on the conveyer belt 9, desicator 11 is arranged in absorbing the steam in the STREAMING hot-blast stream.
In a preferred embodiment, as shown in fig. 4-6, the horizontal transfer component 3 is provided with a conveyor belt 9, and a plurality of trays 4 are laid on the conveyor belt 9, then two conveyor chain rollers 17 are respectively provided at two ends of the conveyor belt 9, and the two conveyor chain rollers 17 are connected by a chain, and a driving motor 10 is provided on one of the conveyor chain rollers 17, so that the purpose of quickly driving the trays 4 on the conveyor belt 9 is finally achieved by the present invention.
In addition, in the present embodiment, by providing the dryer 11 on the conveyor belt 9, after the through-flow high-temperature hot air flow passes through the conveyor belt 9 and dries the material 5 placed on the conveyor belt 9, the dry through-flow high-temperature hot air flow may be changed into a wet through-flow high-temperature hot air flow with a high water content. The increase of the air humidity directly results in a long drying time of the material 5 in the whole oven 2 and reduces the drying efficiency. Aiming at the defect, the dryer 11 is added, the dryer 11 is arranged on the conveying belt 9, and when the humid flow-through high-temperature hot air flows through the dryer 11, water vapor carried in the flow-through high-temperature hot air flows is absorbed by the dryer 11, so that the humidity of the flow-through high-temperature hot air flows is reduced, the drying efficiency is further improved, and the drying time is reduced.
It should be clearly noted that, in the present embodiment, the driving motor 10 is a conventional prior art, and the present invention is only applied to this, and does not involve the optimization and improvement of its own structure, so that it is not described in detail herein. It is noted that, as a preferred embodiment, in the present embodiment, the dryer 11 includes, but is not limited to, the following materials or structures capable of absorbing water vapor: sponges, water-absorbent resins (SAP), and the like.
As a further optimization of the above scheme, at least one hole 12 is respectively formed in the top end and the bottom end of the oven 2, a heating box 13 is arranged on the outer side surface of the oven 2, the top end and the bottom end of the heating box are simultaneously communicated with the hole 12, a heater 14 is arranged in the heating box 13, and the heater 14 provides high-temperature low-humidity cross-flow type hot air flow for the inside of the oven 2.
In this embodiment, as shown in fig. 4 to 6, a heater 14 is disposed in the heating box 13, and an air inlet end of the heater 14 is simultaneously communicated with the hole 12 and the outside, so that the present invention can simultaneously heat the cross-flow high-temperature hot air flow discharged from the oven 2 and the outside medium capable of carrying a heat source, thereby effectively improving the heating efficiency of the present invention on the heat source carrying medium, and reducing the heating time.
It can be exemplified that, in the embodiment, the heater 14 is one of a heat pump, an electric heater 14, a heat exchanger, or the like.
As a further optimization of the above scheme, a fan 15 is arranged at the communication position of the heating box 13 and the through hole of the oven 2, and the fan 15 feeds the high-humidity hot air flow discharged from the oven 2 into the heating box 13.
In this embodiment, as shown in fig. 6, the purpose of setting the fan 15 is to feed the through-flow high-temperature hot air flow into the oven 2 and dry the material 5, and the fan 15 is used to feed the through-flow high-temperature hot air flow into the oven 2 through the heating box 13 more quickly, so as to achieve the purpose of improving the drying efficiency of the material 5.
It can be clearly stated that, in this embodiment, the fan 15 is a conventional prior art, and the present invention is applied only for alignment, and does not relate to optimization and improvement of a specific structure thereof, so that details are not repeated here.
As a further optimization of the above scheme, a dehumidifier 16 is further arranged in the heating box 13 between the heater 14 and the fan 15, and moisture in the high-humidity hot air flow blown by the fan 15 is removed by the dehumidifier 16.
It should be particularly clear and explained that, as a preferred embodiment, in the present embodiment, by additionally providing a dehumidifier 16 in the heating box 13, in the process of drying the material 5, excess water vapor carried in the through-flow high-temperature hot air flow can be dehumidified by the dehumidifier 16, and when the dehumidified air is discharged to the outside, the air will not affect the outside environment.
It can be further explained that the dehumidifier 16 can be an evaporator, and the evaporator has the advantages that, when the evaporator is passed through by the arranged evaporator, the excessive heat carried in the cross-flow hot air flow is absorbed and utilized by the evaporator after the cross-flow hot air flow passes through each horizontal transfer component 3 in the oven 2 and dries the material 5 on the horizontal transfer component 3, so that the waste heat carried by the air finally discharged to the environment is utilized, namely, the heat effect for reducing the environment is promoted, and the utilization efficiency of energy is increased.
As shown in fig. 4-11, the working flow of the present invention is: firstly, a material 5 to be dried is placed in an oven 2, a fan 15 is started, a cross-flow high-temperature hot air flow enters the oven 2 after being heated by a heater 14, a driving motor 10 is started, the driving motor 10 drives a conveying belt 9 to rotate, a material tray 4 placed on the conveying belt 9 moves on the conveying belt 9 and reaches a conveying belt 21 at one end of the conveying belt 9, the conveying belt 21 lifts the material 5 to the upper layer or the topmost conveying belt 9, after the material 5 reaches a horizontal transfer platform at a specified height, a common motor 24 is started and conveys the material 5 to the conveying belt 9, then the conveying belt 9 continues to move and conveys the material 5 to a lifting part 7 at the other side, and after the material 5 reaches the lifting part 7 at the other end, the material 5 is conveyed to the horizontal transfer platform at the other layer by the lifting part 7 until the material tray 4 returns to the initial position. Meanwhile, the through-flow high-temperature hot air flow sequentially passes through the conveying belts 9 from bottom to top and is finally discharged from the holes 12 at the top end of the oven 2, after passing through the conveying belt 9 at the bottommost layer and the materials 5 on the conveying belt 9 at the bottommost layer, when passing through the second layer of conveying belt 9, water vapor in the through-flow high-temperature hot air flow can be absorbed by the dryer 11 on the second layer of conveying belt 9, so that the purpose of reducing the humidity of the through-flow high-temperature hot air flow is achieved. The material 5 in the oven 2 is dried and finally discharged to the external environment from the heat source discharge passage or partially enters the heater 14 and is mixed with cold air supplied from the outside, and the material 5 is dried after being heated by the heater 14.
If only one layer of horizontal transfer part 3 is arranged in the oven 2, the water vapor carried by the cross-flow high-temperature hot air flow passing through the conveyor belt 9 and drying the material 5 can be removed when passing through the dehumidifier 16.
Through the scheme, the drying oven 2 is arranged, the material transfer mechanism 1 is arranged in the drying oven 2, and the material disc 4 containing the materials 5 is placed on the material transfer mechanism 1, so that the materials 5 being dried can move along with the material transfer mechanism 1 when the drying oven is used, the materials 5 on the material transfer mechanism 1 can continuously move in the through-flow type hot air flow in the drying cavity, and finally the purpose of quickly drying the materials 5 is achieved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The method for rapidly and dynamically drying the materials is characterized by comprising the following steps: the method comprises the following steps:
s1, feeding a material (5) flatly laid on the material transfer mechanism (1) into a through-flow hot air flow by using a drying device;
s2, the material transfer mechanism (1) drives the material (5) to circularly move and dry in the flow-through hot air flow formed in the S1;
s3, detecting and judging the dryness of the material (5);
entering S2 if the dryness of the material (5) does not reach the standard, and entering S4 if the dryness of the material (5) reaches the standard;
and S4, taking the material (5) obtained in the step S3 out of the drying equipment.
2. The method of claim 1, wherein: the process of detecting and judging the dryness of the material in the step S3 includes the following steps:
s31, measuring the initial mass of the material (5) and recording the initial mass as m0
S32, performing quality detection on the material (5) obtained in the S2 at least twice in different time periods and recording the quality as ma1、ma2
S33, respectively calculating ma1、ma2And m0Difference δ m between1、δm2
S34, determining δ m1And δ m2Whether the difference between them is the same;
if δ m1And δ m2If the difference between the two values is the same, the dryness of the material (5) is reached, if δ m is equal1And δ m2If the difference is different, the dryness of the material (5) does not reach the standard.
3. The method of claim 1, wherein: the process of detecting and judging the dryness of the material in the step S3 includes the following steps:
s31, detecting the initial humidity of the material (5) by using a humidity detection sensor (6) and recording the initial humidity as A0
S32, carrying out humidity detection on the material (5) obtained in the S2 for at least two times at different time and recording the humidity detection as A1、A2
S33, calculating A respectively1、A2And A0The difference A between1、A2
S34, determining delta A1And δ A2If the difference between delta A and delta A is the same1And δ A2The difference between the values is the same, the dryness of the material (5) is reached, if delta A is equal1And δ A2If the difference is different, the dryness of the material (5) does not reach the standard.
4. A dynamic dryer is characterized in that: including material transport mechanism (1), be provided with a plurality of wind holes on material transport mechanism (1), material transport mechanism (1) sets up in oven (2), be supplied with the hot-blast stream of STREAMING in oven (2), the hot-blast stream of STREAMING dries material (5) of treating the stoving of placing on material transport mechanism (1).
5. The dynamic dryer of claim 4, wherein: at least one horizontal transfer part (3) is arranged in the oven (2), a plurality of material discs (4) are flatly laid on the horizontal transfer part (3), a humidity detection sensor (6) is fixedly arranged on the horizontal transfer part (3), and the horizontal transfer part (3) drives each material disc (4) to do horizontal reciprocating motion in a cross-flow hot air flow.
6. The dynamic dryer of claim 5, wherein: the two ends of the horizontal transfer component (3) are respectively provided with a lifting component (7) connected with the upper layer and the lower layer, the lifting component (7) is positioned in the cross-flow hot air flow, and materials (5) in the material tray (4) do circulating motion under the combined action of the horizontal moving component and the lifting component (7).
7. The dynamic dryer of claim 5, wherein: horizontal transfer part (3) include that two are all established conveyer belt (9) on the drive wheel simultaneously from driving wheel (8) and both ends, charging tray (4) are in proper order tiled on conveyer belt (9), one of them be connected with driving motor (10) in the pivot from driving wheel (8), driving motor (10) are fixed to be set up on the lateral surface of oven (2), the wind hole sets up on conveyer belt (9), be provided with desicator (11) on conveyer belt (9).
8. The dynamic dryer of claim 6, wherein: the drying oven is characterized in that the top end and the bottom end of the drying oven (2) are respectively provided with at least one hole (12), a heating box (13) is arranged on the outer side surface of the drying oven (2), the top end and the bottom end of the heating box are simultaneously communicated with the holes (12), and a heater (14) is arranged in the heating box (13).
9. The dynamic dryer of claim 8, wherein: and a fan (15) is arranged at the communication position of the heating box (13) and the through hole of the oven (2), and the fan (15) sends the high-humidity hot air flow discharged by the oven (2) into the heating box (13).
10. The dynamic dryer of claim 8, wherein: a dehumidifier (16) is also arranged in the heating box (13) body.
CN202110841760.5A 2021-07-26 2021-07-26 Method for quickly and dynamically drying materials and dynamic dryer Pending CN113503695A (en)

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CN201917181U (en) * 2010-12-21 2011-08-03 福州三发发干燥设备有限公司 Novel step-type circulatory tunnel dryer
CN104567285A (en) * 2013-10-15 2015-04-29 国家纺织服装产品质量监督检验中心(浙江桐乡) Microwave automatic drying device
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