CN103471361A - Dryer system - Google Patents

Abstract

The invention discloses a dryer system which comprises a box body, a material conveying belt, a material distribution device, a driving device, a fan unit, a first humidity detection device, a heat dissipation control device and a driving control device, wherein the box body is provided with a material inlet and a material outlet; the material conveying belt is arranged in the box body and used for receiving materials to be dried and sending the dried materials to the material outlet of the box body, and a heat dissipation device is arranged below the material conveying belt; the material distribution device is connected with the box body and used for conveying the materials to be dried onto the material conveying belt; the driving device is used for driving the material conveying belt to move; the fan unit comprises a plurality of fans and is used for generating air flows which can penetrate through the materials to perform drying processing; the first humidity detection device is arranged on the material distribution device and used for detecting the humidity of the materials before drying; the heat dissipation control device is connected with the heat dissipation device and used for controlling the temperature provided by the heat dissipation device according to the humidity of the materials; the driving control device is connected with the driving device and used for controlling driving speed according to the humidity of the materials. The dryer system can control drying efficiency of the materials.

Description

A kind of dryer system

Technical field

The present invention relates to drying equipment, relate in particular to a kind of dryer system for dried particles shape material.

Background technology

Dry technology is must be with common in a lot of fields.Such as, the drying of timber before making wooden model, woodenware can prevent product deformation, and the drying of ceramic batch before calcining can prevent the finished product be full of cracks.In addition, dried material also is convenient to transportation and is stored, such as the grain drying by results arrives below certain moisture content, in case go mouldy.Due to the natural drying needs that far can not meet production development, various drying devices obtain development and application more and more widely thus.A kind of plant equipment for reducing material moisture of drying machine relate generally to, be mainly used in material is carried out to drying process.The kind of drying machine can comprise vacuum drier, spray dryer, freeze drier, pneumatic drier, microwave dryer, fluid bed dryer, roller drier etc.Wherein, various drying machines are all to have utilized identical physics drying principles basically, i.e. the drying process of wet stock has 2 basic processes to carry out simultaneously: a. heat to wet stock, raises its temperature by gas transfer; B. the moisture of material inside diffuses to the surface, and vaporization is taken away by air-flow on surface.

Band drier is continuous chain-belt drying equipment commonly used, can be widely used in the industries such as chemical industry, food, medicine, building materials, electronics, is particularly suitable for the gas permeability drying of sheet, strip, granular material preferably., the dry machine of sandwich tape is usually used in that the rate of drying requirement is lower, drying time is longer, and in whole dry run, process condition can keep constant occasion.Interlayer arranges dividing plate to organize the directed flow of drying medium, makes dry materials even.Multi-layer belt type drying machine takes up an area few, simple in structure, is widely used in dried grain class material.

Grain drying is the process of a complexity, influence factor is many, drying condition is changeable, and influence factor wherein has the structural parameters of medium parameter (as hot blast temperature, hot blast air quantity and hot blast humidity), grain parameter (as grain classification, grain moisture content, cereal temperature and grain flow), environmental condition (as atmospheric temperature and atmospheric humidity), drying process (as concurrent drying, counter-current drying, cross-current drying, mixed flow drying) and drying machine.In the prior art, for the drier unit of dry animal feed or mankind paddy grain, usually can not effectively control the control parameter of drying machine, and dry object is easy to enter into dryer inner, causes the damage of drying machine.

Summary of the invention

For overcoming shortcomings and deficiencies of the prior art, the present invention proposes a kind of drier unit that can control dry materials efficiency.

The invention provides a kind of dryer system, comprising: casing is provided with charging aperture, discharging opening on it; Be provided with material conveyor belt in described casing, for receiving material to be dried and dried material being delivered to the discharging opening of casing, described material conveyor belt below is provided with heat abstractor; Distribution device, be connected with described casing, in order to the material by be dried, is written on described material conveyor belt; Transmission device, in order to drive described material conveyor belt motion; Fan unit, comprise a plurality of blower fans, for generation of air-flow with through material and carry out drying processing; The first humidity detector, be located on distribution device, the humidity for detection of material before dry; Controller for heat sink, be connected with described heat abstractor, for the humidity according to material, controls the temperature that heat abstractor provides; Transmission control device, be connected with described transmission device, for the humidity according to material, controls transmission speed.

Alternatively, according to dryer system of the present invention, described material conveyor belt is two, divide upper and lower two-layer setting, the traffic direction of described two-layer material conveyor belt is contrary, the upper materials conveyer belt transports from the head of dryer system material to afterbody, lower floor's material conveyor belt transports from the afterbody of dryer system material to head.

Alternatively, according to dryer system of the present invention, the afterbody of described dryer system is provided with guide part, for material is directed to lower floor's material conveyor belt from the upper materials conveyer belt, the upper end of described guide part is positioned at the top of upper materials conveyer belt outside, the lower end of guide part is positioned at the top of lower floor's material conveyor belt, between described guide part and upper materials conveyer belt, has certain interval.

Alternatively, according to dryer system of the present invention, the afterbody of described dryer system, lower floor's material conveyor belt extends outside the upper materials conveyer belt, so that the material of upper materials conveyer belt can all fall to lower floor's material conveyor belt.

Alternatively, according to dryer system of the present invention, from upper end to lower end, the distance apart from drying machine afterbody vertical plane increases described guide part gradually.

Alternatively, dryer system of the present invention, the combination that described guide part is plane, cambered surface or plane and cambered surface.

Alternatively, according to dryer system of the present invention, described dryer system also comprises the air-blower control unit, with described fan unit, is connected, and controls the size of blower fan air-out for the humidity according to material, and then controls the rate of drying of air-flow.

Alternatively, according to dryer system of the present invention, described dryer system also comprises the second humidity detector being positioned at the material outlet place, for detection of material in dried humidity.

Alternatively, according to dryer system of the present invention, in described casing, be provided with homogenating plate, for the air-flow that fan unit is produced, carry out uniform distribution.

Alternatively, according to dryer system of the present invention, described distribution device comprises and waves the cloth mouth, and it is driven by wheel shaft.

Dryer system of the present invention carries out Humidity Detection by the material to before dry, according to dry target humidity, controls temperature that heat abstractor provides and/or the transmission speed of transmission device, and then can control the drying efficiency of material.Simultaneously, guide part is set between conveyer belt in drying machine, has effectively controlled the transportation of material, avoid the waste of material.

The accompanying drawing explanation

By reading hereinafter detailed description of the preferred embodiment, various other advantage and benefits will become cheer and bright for those of ordinary skills.Accompanying drawing is only for the purpose of preferred embodiment is shown, and do not think limitation of the present invention.In the accompanying drawings:

The structural representation that Fig. 1 is drying machine of the present invention; And

The work schematic diagram that Fig. 2 is material conveyer belt and guide plate in drying machine of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing and concrete embodiment, the invention will be further described.

Fig. 1 illustrates the structural representation of drying machine of the present invention.As shown in Figure 1, drying machine according to the present invention can be used for the materials such as drying grain, granule state food.Particularly, drying machine of the present invention comprises:casing 100,distribution device 200,transmission device 300,fan unit 400, thefirst humidity detectors 500, controller forheat sink 600 and transmission control device 700.Wherein, be provided withcharging aperture 101, dischargingopening 102 for the material turnover on describedcasing 100, and air inlet and air outlet (not shown); Also be provided with material conveyor belt in describedcasing 100, for receiving material to be dried and dried material being delivered to the discharging opening of casing, be provided withheat abstractor 104 below described material conveyor belt, heated for the air-flow that fan unit is produced;Distribution device 200 is connected with described casing, in order to the material by be dried, is written on described material conveyor belt;Transmission device 300 is used for driving described material conveyor belt motion;Fan unit 400 comprises a plurality of blower fans, for generation of air-flow with through material and carry out drying processing; Thefirst humidity detector 500 is located ondistribution device 200, the humidity for detection of material before dry; Controller forheat sink 600 is connected with describedheat abstractor 104, for the humidity according to material, controls the temperature that heat abstractor provides;Transmission control device 700 is connected with describedtransmission device 300, for the humidity according to material, controls transmission speed.In drying machine of the present invention, by the first humidity detector is set on distribution device, before material carries out drying, its humidity is detected, the target humidity that need to reach according to material, the temperature provided by the control heat abstractor and/or the transmission speed of transmission device, and then can control the drying efficiency of material, greatly promoted the work efficiency of dryer system.

In dryer system of the present invention, described material conveyor belt is at least one, is provided with densely covered hole on conveyer belt, and granularity is less than the granularity of material, but can allow gas to pass.In one embodiment of the present of invention, described material conveyor belt is two, minute upper and lower two-layer setting, as shown in fig. 1.Wherein, the traffic direction of upper and lower two-layer conveyer belt is contrary, and uppermaterials conveyer belt 1031 is advanced to afterbody by the head of drying machine, and lower floor'sconveyer belt 1032 is carried out to head by afterbody.In the present invention, the initiating terminal of uppermaterials conveyer belt 1031 is connected with the charging aperture of casing, and the initiating terminal of lower floor'smaterial conveyor belt 1032 is connected with the discharging opening of casing.Material to be dried is fallen on upper materials conveyer belt initiating terminal through the casing charging aperture, head by drying machine is advanced to afterbody, the material that arrives upper materials conveyer belt afterbody is fallen the end of lower floor's material conveyor belt, material is advanced to head by the afterbody of drying machine again, until arrive the casing discharging opening.Material is dried in the process transmitted, and finally by the casing discharging opening, derives drying machine.Preferably, at the afterbody of described drying machine, described lower floor material driving-belt 1032 stretches out a segment length than uppermaterials conveyer belt 1031, so that the material of uppermaterials conveyer belt 1031 can all fall to lower floor'smaterial conveyor belt 1032.

In order to prevent that material from falling to outside conveyer belt and drying machine is caused damage, in dryer system of the present invention, be provided withguide part 105 at the afterbody of described dryer system, for material is directed to lower floor's material conveyor belt from the upper materials conveyer belt.Fig. 2 shows the structural representation of conveyer belt and guide part in specific embodiment of the present invention.As shown in Figure 2, material conveyor belt divides upper and lower two-layer setting, upperstrata conveyer belt 1031 and lower floor'smaterial conveyor belt 1032 are advanced by rightabout, the upper materials conveyer belt transports from the head of dryer system material to afterbody, lower floor's material conveyor belt transports from the afterbody of dryer system material to head.Afterbody at dryer system is provided withguide part 105, for material is directed to lower conveyor belt from upper conveyor belt, the upper end ofguide part 105 is positioned at the top of uppermaterials conveyer belt 1031 outsides, the lower end ofguide part 105 is positioned at the top of lower floor'smaterial conveyor belt 1032, and has certain interval betweenguide part 105 and upper materials conveyer belt 1031.Guide part 105 fixes installation with roof or the sidewall of drying machine, and guide part from upper end to lower end, the distance apart from drying machine afterbody vertical plane increases gradually, that is, from upper end to lower end, the distance apart from drying machineright side wall 106 increasesguide part 105 gradually.Preferably, guide part from upper end to the line of lower end and the angular range of vertical direction be 0 °-60 °.When having material to be blown on guide part, because guide part has certain angle of inclination, by the Action of Gravity Field material, can be dropped to voluntarily on lower conveyor belt, avoided material to fall to outside lower conveyor belt, cause the waste of material, also can avoid material to fall into dryer inner simultaneously, cause the damage of drying machine.

The combination that guide part in the present invention is plane, cambered surface or plane and cambered surface, and the width of guide part is greater than the width of conveyer belt, and preferably, guide part can also arrange one or more gathering sills from top to bottom, the transportation of more convenient material.

In dryer system of the present invention, described dryer system also comprises air-blower control unit 800, with describedfan unit 400, is connected, and controls the size of blower fan air-out for the humidity according to material, and then controls the rate of drying of air-flow.

In dryer system of the present invention, described dryer system also comprises the second humidity detector (not shown) being positioned at the material outlet place, for detection of material in dried humidity, humidity and the required difference size that reaches the standard humidity scope after the judgement dry materials, suitably to adjust the operational factor of drying machine according to result.If dried humidity of materials is less than the standard humidity scope, reduce the temperature that heat abstractor provides in drying machine and/or improve the transmission speed of belt, until dried humidity of materials is in the standard humidity scope, the temperature that reducing heat abstractor the provides rate of drying that can slow down, the transmission speed that improves belt can reduce the drying time of material, these two kinds of methods drying efficiency that all can slow down; If dried humidity is greater than the standard humidity scope, can suitably increase the temperature that heat abstractor provides in drying machine and/or reduce the transmission speed of belt, until dried humidity of materials is in the standard humidity scope, the temperature that increasing heat abstractor provides can be accelerated rate of drying, the transmission speed that reduces belt can increase the drying time of material, and these two kinds of methods all can improve drying efficiency; And if dried humidity maintains the temperature that in drying machine, heat abstractor provides and the transmission speed that reduces belt and proceeds drying in the standard humidity scope.

Dryer system of the present invention, be provided with the homogenating plate (not shown) in described casing, for the air-flow that fan unit is produced, carry out uniform distribution.Described homogenating plate is arranged at respectively bottom and the top of described lower floor material conveyor belt, for air-flow is carried out to uniform distribution, improves drying efficiency.Described homogenating plate is the stainless steel orifice plate, and its thickness is not more than 2mm, preferably 0.5-2mm; Percent opening designs according to air circulation, and wind speed is controlled at 6-9m/s.

Thedistribution device 200 of dryer system of the present invention comprises a feeding auger and swingable cloth mouth, and it is directly poured wet material on the conveyer belt on upper strata into.Wherein, described cloth mouth is connected with the wheel shaft of an off-axis, makes the described cloth mouth can be without swinging back and forth on the stroke range of setting of pausing.The speed swung is controlled by the motor of cloth system, and motor is connected with distribution system, by distribution system, is controlled.

According to the present invention, the motor of described each fan unit is connected with distribution system, can be regulated and controled by distribution box power and the rotating speed of the motor of fan unit, so as to the air velocity in the adjustment casing and gas flow temperature etc.In addition, the motor of distribution device and material conveyor belt drive system also is connected with distribution system, can adjust power and the speed of motor.The motor of described material conveyor belt drive system is positioned at the front and rear of drying machine casing, can comprise two motors, and is adjustable motor.

While utilizing dryer system of the present invention to carry out drying, at first detect the humidity of material to be dried, then it is written on the material conveyor belt in drying machine by distribution device; Control temperature that in drying machine, heat abstractor provides and the transmission speed of transmission device according to the initial humidity of material and the final required humidity reached; Air enters in drying machine through the casing air inlet, under the effect of blower fan, becomes air-flow, after homogenating plate is uniformly distributed, by heat abstractor, is heated, and the air after heating carries out drying to the material on driving-belt and discharges outside drying machine by the air outlet on casing.Material through super-dry is exported casing through the casing discharging opening, by the second humidity detector, its humidity is detected, humidity after the judgement dry materials and the difference size of the required standard humidity scope reached, carry out suitable adjustment according to the difference situation to the operational factor of dryer system.

It should be noted, the present invention will be described rather than limit the invention for above-described embodiment, and those skilled in the art can design alternative embodiment in the situation that do not break away from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and is not listed in element or the step in claim.The use of word first, second and C grade does not mean any order, can be title by these word explanations.

Claims (10)

1. a dryer system comprises:

Casing (100), be provided with charging aperture (101), discharging opening (102) on it; Be provided with material conveyor belt in described casing, for receiving material to be dried and dried material being delivered to the discharging opening of casing, described material conveyor belt below is provided with heat abstractor (104);

Distribution device (200), be connected with described casing (100), in order to the material by be dried, is written on described material conveyor belt;

Transmission device (300), in order to drive described material conveyor belt motion;

Fan unit (400), comprise a plurality of blower fans, for generation of air-flow with through material and carry out drying processing;

The first humidity detector (500), be located at distribution device (200) upper, the humidity for detection of material before dry;

Controller for heat sink (600), be connected with described heat abstractor (104), for the humidity according to material, controls the temperature that heat abstractor provides;

Transmission control device (700), be connected with described transmission device (300), for the humidity according to material, controls transmission speed.

2. dryer system according to claim 1, it is characterized in that: described material conveyor belt is two, divide upper and lower two-layer setting, the traffic direction of described two-layer material conveyor belt is contrary, upper materials conveyer belt (1031) transports from the head of dryer system material to afterbody, lower floor's material conveyor belt (1032) transports from the afterbody of dryer system material to head.

3. dryer system according to claim 2, it is characterized in that: the afterbody of described dryer system is provided with guide part (105), for material is directed to lower floor's material conveyor belt (1032) from upper materials conveyer belt (1031), the upper end of described guide part (105) is positioned at the outside top of upper materials conveyer belt (1031), the lower end of guide part is positioned at the top of lower floor's material conveyor belt (1032), between described guide part (105) and upper materials conveyer belt (1031), has certain interval.

4. according to the described dryer system of claim 2 or 3, it is characterized in that: the afterbody of described dryer system, lower floor's material conveyor belt (1032) extends outside upper materials conveyer belt (1031), so that the material of upper materials conveyer belt (1031) can all fall to lower floor's material conveyor belt (1032).

5. dryer system according to claim 3 is characterised in that: from upper end to lower end, the distance apart from drying machine afterbody vertical plane increases described guide part (105) gradually.

6. dryer system according to claim 3, it is characterized in that: described guide part (105) is the combination of plane, cambered surface or plane and cambered surface.

7. dryer system according to claim 1, it is characterized in that: described dryer system also comprises air-blower control unit (800), be connected with described fan unit (400), control the size of blower fan air-out for the humidity according to material, and then control the rate of drying of air-flow.

8. dryer system according to claim 1 is characterized in that: described dryer system also comprises the second humidity detector being positioned at the material outlet place, for detection of material in dried humidity.

9. dryer system according to claim 1, it is characterized in that: described casing is provided with homogenating plate in (100), for the air-flow that fan unit is produced, carries out uniform distribution.

10. dryer system according to claim 1 is characterized in that: described distribution device (200) comprises and waves the cloth mouth, and it is driven by wheel shaft.

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