CN113237300A - Drying device and system - Google Patents

Abstract

The invention relates to a drying device and a system, wherein the device comprises a cold and heat source, a heating box, a condensing box and a condensate water return device, the heating box is arranged in the condensing box, the outer walls of the heating box and the condensing box are respectively and correspondingly provided with a heating jacket and a condensing jacket, cold and hot water generated by the cold and heat source is respectively communicated with the condensing jacket and the heating jacket through a conveying pipeline, the upper end of the heating box is open, a material to be heated is contained in the heating box, and the condensate water return device is communicated with the condensing box. The invention generates cold water and hot water through cold and hot sources and supplies the cold water and the hot water to the jacket of the condensing box and the jacket of the heating box respectively so as to heat materials in the heating box, steam generated in the heating process overflows from the upper end of the heating box and is discharged to the condensate water return device after the steam meets the inner wall of the condensing box and is condensed and dripped, so that the water in the heating box is quickly boiled and condensed, and the whole device is in higher drying efficiency, thereby improving the dehydration efficiency.

Description

Drying device and system

Technical Field

The invention relates to the technical field of drying, in particular to a drying device and a drying system.

Background

With the development of industries such as automobiles, household electrical appliances and the like, more and more industrial wastes are generated, and particularly, the proper treatment of paint slag and the reduction and utilization of the treatment of the paint slag are urgent. At present, each automobile manufacturing enterprise needs to carry out drying treatment before sending paint slag to a chemical plant for treatment so as to reduce the weight of the paint slag and further reduce the treatment cost of the paint slag.

In the prior art, the drying equipment for industrial wastes generally directly adopts high-temperature steam as a drying source, so that the treatment efficiency of the equipment is low, and the overall drying and dehydrating efficiency of the drying equipment is lower.

Disclosure of Invention

The present invention provides a drying device and a system, which aims to overcome the defects of the prior art.

The technical scheme for solving the technical problems is as follows: the utility model provides a drying device, is including the cold and hot source, at least one heating cabinet, the inside cavity that are used for producing the hot and cold water and the condensate water return device that forms seal chamber, the heating cabinet sets up in the condensing cabinet, it presss from both sides the cover and the condensation presss from both sides the cover to correspond respectively on the outer wall of heating cabinet and condensing cabinet to be equipped with the heating, the hot and cold water that the cold and hot source produced respectively through pipeline with condensation presss from both sides the cover and presss from both sides the cover intercommunication with the heating to form respectively and correspond circulating pipe loop, the uncovered setting in upper end of heating cabinet, just contain the material of treating the heating in the heating cabinet, the condensate water return device with the condensing cabinet intercommunication, in order to collect the comdenstion water that the high-temperature steam condensation in the heating cabinet formed.

The invention has the beneficial effects that: according to the drying device, cold water and hot water generated by the cold and hot sources are respectively supplied to the jacket of the condensing box and the jacket of the heating box, so that materials in the heating box are heated, steam generated in the heating process overflows from the upper end of the heating box and is discharged to the condensate water return device after being condensed and dripped on the inner wall of the condensing box, so that water in the heating box can be quickly boiled and condensed, the whole device is in high drying efficiency, the dehydration efficiency is improved, the structure is simple, and the whole device is efficient and energy-saving.

On the basis of the technical scheme, the invention can be further improved as follows:

further: the quantity of heating cabinet is a plurality of, and is a plurality of the even interval of heating cabinet sets up in the condensing box.

The beneficial effects of the further scheme are as follows: through setting up a plurality ofly the heating cabinet can improve stoving dehydration efficiency by fold to probably set up according to actual need in a flexible way the quantity of heating cabinet, convenient to use.

Further: the drying device also comprises stirring mechanisms which are the same in number with the heating boxes and correspond to the heating boxes one by one, wherein the stirring mechanisms stretch into the heating boxes and stir the materials contained in the heating boxes. .

The beneficial effects of the further scheme are as follows: through setting up rabbling mechanism can improve right the heating efficiency of the material in the heating cabinet makes rightly the heating of material is more even, guarantees heating efficiency, is favorable to the moisture in the material to form high temperature steam and follow the upper end of heating cabinet spills over.

Further: rabbling mechanism includes stirring mobile jib, many stirring branches and agitator motor, the lower extreme of stirring mobile jib stretches into via corresponding uncovered stretching into of heating cabinet upper end in the heating cabinet, many stirring branch interval circumference sets up on the stirring mobile jib, and be located in the heating cabinet, agitator motor's output with the upper end transmission of stirring mobile jib is connected, and can drive the stirring mobile jib drives stirring branch is right material in the heating cabinet stirs, the distance between the tip of stirring branch (52) and the heating cabinet inner wall is less than 10 mm.

The beneficial effects of the further scheme are as follows: through stirring motor drive stirring mobile jib rotates the fault and drives stirring branch is right material in the heating cabinet stirs, makes right the heating of material is more even, guarantees heating efficiency, is favorable to the moisture in the material to form high temperature steam and follow the upper end of heating cabinet overflows.

Further: the inner side wall of the condensing box and the outer side wall of the heating box are arranged at intervals, the distance range of the distance between the inner side wall of the condensing box and the outer side wall of the heating box is 20mm-300mm, and the distance range of the distance between the upper end of the heating box and the inner top wall of the condensing box is 20mm-300 mm.

The beneficial effects of the further scheme are as follows: by controlling the distance between the inner side wall of the condensing box and the outer side wall of the heating box and the distance between the upper end of the heating box and the inner top wall of the condensing box, the short circuit that heat is easily transferred between the heating box and the condensing box when the distance is too small is avoided, and the temperature of the inner wall surface of the condensing box is increased to influence the condensing effect; when avoiding apart from too big, because of vapor density is little in the condensing box, the resistance from the export of heating cabinet upper end to the condensing box wall is great, also influences the condensation effect, and then influences the stoving effect of heating cabinet.

Further: and a heat insulation layer is arranged between the inner bottom wall of the condensation box and the outer bottom wall of the heating box.

The beneficial effects of the further scheme are as follows: through setting up the insulating layer can avoid form heat transfer's short circuit between the interior diapire of condensing box and the outer diapire of heating cabinet, and then lead to the condensing box internal face temperature to rise, influence the condensation effect.

Further: the drying device also comprises a vacuum mechanism, wherein the vacuum mechanism is communicated with the condensing box and keeps a cavity in the condensing box to be in a vacuum environment.

The beneficial effects of the further scheme are as follows: through setting up vacuum mechanism can make whole processing vacuum state in the condensing box, thereby reduce the boiling point of high temperature steam in the condensing box, thereby make the high temperature steam of moisture formation in the material absorb the heat more easily and boil, the high temperature steam that the boiling produced spills over from heating box upper portion export, and high temperature steam touches the low temperature internal wall face of condensing box and condenses rapidly and form the water droplet, and the water droplet drops to the condensing box lower part and collects and flow into in the comdenstion water collecting box through the pipeline.

Further: and the inner wall of the condensation box is provided with a hydrophobic coating.

The beneficial effects of the further scheme are as follows: the hydrophobic coating can prevent condensed water formed by high-temperature steam from being attached to the inner wall of the condensation box, so that the condensed water can quickly drip and flow into the condensed water collecting box through the pipeline.

Further: the drying device also comprises a plurality of radiating fins which are arranged on the inner wall of the condensing box at even intervals.

The beneficial effects of the further scheme are as follows: through setting up the fin can increase heat exchange area, and the heat of the high temperature vapour of being convenient for is fast with the low temperature inner wall back flash condensation of condensing box, improves the stoving effect, improves dehydration effect.

The invention also provides a drying system which comprises the drying device.

Drawings

Fig. 1 is a schematic structural diagram of a drying apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a drying apparatus according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a drying apparatus according to another embodiment of the present invention;

FIG. 4 is a graph showing the relationship between the distance between the inner sidewall of the condensing box and the outer sidewall of the heating box and the water yield according to an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a cold and heat source 2, a heating box 3, a condensing box 4, a conveying pipeline 5, a stirring mechanism 6, a heat insulation layer 7, a vacuum mechanism 8 and a condensate water return device;

41. a cold water conveying pipeline 42, a hot water conveying pipeline 51, a stirring main rod 52, a stirring support rod 53 and a stirring motor.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1, a drying device includes a cold and heat source 1 for generating cold and hot water, at least one heating box 2, a condensing box 3 which is hollow inside and forms a sealed cavity, and a condensate water returning device 8, where the heating box 2 is disposed in the condensing box 3, the outer walls of the heating box 2 and the condensing box 3 are respectively and correspondingly provided with a heating jacket and a condensing jacket, the cold and hot water generated by the cold and heat source 1 is respectively communicated with the condensing jacket and the heating jacket through a conveying pipeline and respectively forms a corresponding circulating pipe loop, the upper end of the heating box 2 is open, and the heating box 2 contains a material to be heated, and the condensate water returning device 8 is communicated with the condensing box 3 to collect condensate water formed by condensing high-temperature steam in the heating box 2.

According to the drying device, cold water and hot water generated by the cold and heat source 1 are respectively supplied to the jacket of the condensing box 3 and the jacket of the heating box 3, so that materials in the heating box 2 are heated, steam generated in the heating process overflows from the upper end of the heating box 2, and is discharged to the condensate water return device 8 after being condensed and dripped after meeting the inner wall of the condensing box 3, so that water in the heating box 2 can be quickly boiled and condensed, the whole device is in high drying efficiency, the dehydration efficiency is improved, and meanwhile, the drying device is simple in structure, efficient and energy-saving in whole.

In the embodiment of the invention, the cold and heat source 1 is a water source type heat pump system, heat is absorbed by condensation of cold water in a condensation water tank jacket, heat is transferred to hot water supplied to a heating tank jacket through a heat pump, the temperature of the delivered hot water is not lower than 60 ℃, the whole system is efficient and energy-saving, the structure is simple, and the reliability is high.

As shown in fig. 2, in one or more embodiments of the present invention, the number of the heating boxes 2 is plural, and a plurality of the heating boxes 2 are uniformly spaced in the condensing box 3. Through setting up a plurality ofly drying and dewatering efficiency can be improved manyfold to probably set up according to actual need in a flexible way the quantity of heating cabinet 2, convenient to use. The figure shows the case when the number of the heating chambers 2 is two.

In the embodiment of the invention, hot and cold water is generated by the hot and cold source 1 and is respectively conveyed to the jackets of the condensing box and the heating box through the conveying pipelines 4, and the circulating loops are respectively formed. The condensing tank 3 is a closed tank body, the wall surface of the tank body is provided with a condensing jacket, and the jacket can be introduced with cold water input by the cold and heat source 1 through a cold water conveying pipeline 41; the heating box 2 is an open box body, the wall surface of the box body is provided with a heating jacket, and the jacket can be introduced with hot water input by the cold and heat source 1 through a hot water conveying pipeline 42. In addition, the condensing tank 3 and the heating tank 2 in the present embodiment may be cylindrical or may be generally square.

Optionally, in order to facilitate the condensate to be discharged out of the condensation box 3 in time, in practice, a water outlet of the condensation box 3, which is communicated with the condensate water returning device 8, is disposed on a bottom wall of one side of the condensation box 3, an inner top wall of the condensation box 3 is disposed as an inclined surface, and one side of the inner top wall of the condensation box 3, which is close to the water outlet, is lower than the other side of the inner top wall, so that the condensate, which is formed after the steam generated in the heating process overflows from the upper end of the heating box 2 and meets the inner wall of the condensation box 3, can flow to one side of the water outlet along the inner top wall of the condensation box 3, and the dripping port is smoothly discharged through the water outlet.

Optionally, in one or more embodiments of the present invention, the drying device further includes stirring mechanisms 5, the number of which is the same as that of the heating boxes 2 and corresponds to one another, and the stirring mechanisms 5 extend into the heating boxes 2 and stir the materials contained therein. Through setting up rabbling mechanism 5 can improve right the heating efficiency of the material in the heating cabinet 2 makes right the heating of material is more even, guarantees heating efficiency, is favorable to the moisture in the material to form high temperature steam and follow the upper end of heating cabinet 2 spills over.

In one or more embodiments of the present invention, the stirring mechanism 5 includes a stirring main rod 51, a plurality of stirring struts 52 and a stirring motor 53, a lower end of the stirring main rod 51 extends into the heating box 2 through an opening at an upper end of the corresponding heating box 2, the plurality of stirring struts 52 are circumferentially disposed on the stirring main rod 51 at intervals and are located in the heating box 2, the stirring motor 53 is installed at a top of the condensation box 3 and is located outside the condensation box 3, an output end of the stirring motor 53 is in transmission connection with an upper end of the stirring main rod 51, and can drive the stirring main rod 51 to drive the stirring struts 52 to stir the material in the heating box 2, and a distance between an end of the stirring strut 52 and an inner wall of the heating box 2 is less than 10 mm. Through agitator motor 53 drive main mixing rod 52 rotates the trouble and drives stirring branch 52 is right material in the heating cabinet 2 stirs, makes right the heating of material is more even, guarantees heating efficiency, is favorable to the moisture in the material to form high temperature steam and follow the upper end of heating cabinet 2 spills over. Here, control distance between tip and the heating cabinet 2 inner wall of stirring branch 52 is for right on the one hand adnexed material strikes off on the inner wall of heating cabinet 2, and another convenience for having guaranteed stirring branch 52's structural strength, adopts the hard metal material usually, and its heat conduction effect is better like this, is favorable to carrying out the even heating to the material in the heating cabinet 2.

As shown in fig. 3, in one or more embodiments of the present invention, the stirring mechanism 5 includes a stirring main rod 51, a plurality of stirring struts 52 and a stirring motor 53, one end of the stirring main rod 51 horizontally penetrates through the side wall of the heating box 2 and then extends into the heating box 2, the plurality of stirring struts 52 are circumferentially disposed on the stirring main rod 51 at intervals and are located in the heating box 2, the stirring motor 53 is installed at a side portion of the corresponding side of the condensation box 3 and is located outside the condensation box 3, an output end of the stirring motor 53 is in transmission connection with the other end of the stirring main rod 51, and can drive the stirring main rod 51 to drive the stirring struts 52 to stir the material in the heating box 2, and a distance between an end of the stirring strut 52 and the inner wall of the heating box 2 is less than 10 mm. Similarly, here, control distance between tip and the heating cabinet 2 inner wall of stirring branch 52 is for right on the one hand adnexed material strikes off on the inner wall of heating cabinet 2, and another convenience has adopted the hard metal material usually for guaranteeing stirring branch 52's structural strength, and its heat conduction effect is better like this, is favorable to carrying out the even heating to the material in the heating cabinet 2.

Optionally, in one or more embodiments of the present invention, the inner sidewall of the condensation tank 3 is spaced apart from the outer sidewall of the heating tank 2 by a distance in a range of 20mm to 300mm, and the upper end of the heating tank 2 is spaced apart from the inner top wall of the condensation tank 3 by a distance in a range of 20mm to 300 mm. By controlling the distance between the inner side wall of the condensing box 3 and the outer side wall of the heating box 2 and the distance between the upper end of the heating box 2 and the inner top wall of the condensing box 3, short circuit of heat transfer easily formed between the heating box 2 and the condensing box 3 when the distance is too small is avoided, and the temperature of the inner wall surface of the condensing box 3 can be increased to influence the condensing effect; when avoiding apart from too big, because of vapor density is little in the condensing box 3, the resistance from the export of 3 upper ends of heating cabinet to the condensing box wall is great, also influences the condensation effect, and then influences the stoving effect of heating cabinet.

In order to select a suitable distance between the inner side wall of the condensation box 3 and the outer side wall of the heating box 2, the invention has been experimented, and on the basis of ensuring sufficient drying time, a relation curve between the moisture reduction amounts (water yield) corresponding to different distances is obtained, as shown in fig. 4. As can be seen from the figure, the distance between the inner side wall of the condensation box 3 and the outer side wall of the heating box 2 cannot be selected to be too large or too small, and as long as a proper distance is selected, the drying effect of the whole device is good.

In one or more embodiments of the invention, a thermal insulation layer 6 is arranged between the inner bottom wall of the condensation box 3 and the outer bottom wall of the heating box 2. Through setting up insulating layer 6 can avoid form heat transfer's short circuit between the interior diapire of condensing tank 3 and the outer diapire of heating cabinet 2, and then lead to condensing tank 3 internal face temperature to rise, influence the condensation effect.

In the embodiment of the invention, the thickness of the heat insulation layer 6 is more than 50 mm.

Optionally, in one or more embodiments of the present invention, the drying device further includes a vacuum mechanism 7, where the vacuum mechanism 7 is communicated with the condensation box 3 and maintains a vacuum environment in the cavity of the condensation box 3. Through setting up vacuum mechanism 7 can make whole processing vacuum state in the condensing box 3 to reduce the boiling point of high temperature steam in the condensing box 3, thereby make the high temperature steam of moisture formation in the material absorb the heat boiling more easily, the high temperature steam that the boiling produced spills over from heating box upper portion export, and high temperature steam touches the low temperature internal face of condensing box 3 and condenses rapidly and form the water droplet, and the water droplet drops to the condensing box lower part and collects and flow into in condensate water collecting box 8 through the pipeline.

In the embodiment of the present invention, the vacuum mechanism 7 is required to maintain the pressure in the condensation tank 3 below 50 Kpa.

In one or more embodiments of the invention, the inner wall of the condensation tank 3 is provided with a hydrophobic coating. The hydrophobic coating can prevent the condensed water formed by high-temperature steam from attaching to the inner wall of the condensation tank 3, so that the condensed water quickly drips and flows into the condensed water collection tank 8 through a pipeline.

Optionally, in one or more embodiments of the present invention, the drying device further includes a plurality of heat dissipation fins (not shown in the figure), and the plurality of heat dissipation fins are uniformly spaced on the inner wall of the condensation box 3. Through setting up the fin can increase heat exchange area, and the heat of the high temperature steam of being convenient for is fast with the low temperature inner wall postcondensation of condensing box 3, improves the stoving effect, improves dehydration effect.

When the drying device dries materials, firstly, the materials are placed in a heating box 2, cold and hot water generated by a cold and hot source 1 is supplied to a condensing box 3 and a jacket of the heating box 2, a stirring mechanism 5 is started, and a vacuum mechanism 7 is started to maintain the whole inside of the condensing box 3 in a vacuum state; the solid waste materials in the heating box 2 gradually absorb the heat of hot water in a hot jacket of the heating box 2 in the stirring process, the boiling point of the water in the materials is reduced under the whole vacuum environment, the materials are quickly heated and boiled, high-temperature water vapor generated by boiling overflows from an outlet at the upper part of the heating box 2 body, the high-temperature water vapor touches the low-temperature inner wall surface of the condensing box 3 and is quickly condensed to form water drops, and the water drops fall to the lower part of the condensing box 3 to be collected and flow into the condensed water collecting box 8 through a pipeline.

In particular, here, the high-temperature water vapor overflowing from the upper end of the heating box 2 rises to the inner wall surface of the condensing box 3 to be rapidly condensed, so that a significant water vapor partial pressure gradient is formed between the inside of the heating box 2 and the condensing box, and the high-temperature water vapor generated by heat absorption in the heating box 2 quickly overflows from the heating box 2 and is cooled by the wall surface of the condensing box 3, so that the drying of the materials in the heating box is realized.

The drying system provided by the invention can enable water in the heating box 2 to be boiled and condensed more quickly, so that the whole device is in a higher drying efficiency, the dehydration efficiency is improved, meanwhile, the structure is simple, the heat cold source is a water-loop heat pump system, and the whole device is efficient and energy-saving.

The invention also provides a drying system which comprises the drying device.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides a drying device which characterized in that: including cold and hot source (1) that are used for producing the hot and cold water, at least one heating cabinet (2), inside cavity and condenser box (3) and the comdenstion water return device (8) that form seal chamber, heating cabinet (2) set up in condenser box (3), it presss from both sides the cover and the condensation presss from both sides to correspond to be equipped with the heating on the outer wall of heating cabinet (2) and condenser box (3) respectively to press from both sides, the hot and cold water that cold and hot source (1) produced respectively through pipeline with condensation presss from both sides cover and heating jacket intercommunication to form respectively and correspond the circulating pipe return circuit, the uncovered setting in upper end of heating cabinet (2), just fill the material of treating the heating in heating cabinet (2), comdenstion water return device (8) with condenser box (3) intercommunication, in order to collect the comdenstion water that the high temperature steam condensation in heating cabinet (2) formed.

2. The drying apparatus according to claim 1, wherein: the number of heating cabinet (2) is a plurality of, and is a plurality of heating cabinet (2) evenly spaced sets up in condensing tank (3).

3. The drying apparatus according to claim 2, wherein: the device is characterized by further comprising stirring mechanisms (5) which are the same in number with the heating boxes (2) and correspond to the heating boxes one by one, wherein the stirring mechanisms (5) extend into the heating boxes (2) and stir the materials contained in the heating boxes.

4. The drying apparatus according to claim 3, wherein: rabbling mechanism (5) are including stirring mobile jib (51), many stirring branch (52) and agitator motor (53), the lower extreme of stirring mobile jib (51) stretches into via corresponding uncovered stretching into of heating cabinet (2) upper end in heating cabinet (2), many stirring branch (52) interval circumference sets up on stirring mobile jib (51), and lie in heating cabinet (2), agitator motor (53) the output with the upper end transmission of stirring mobile jib (51) is connected, and can drive stirring mobile jib (51) drives stirring branch (52) is right material in heating cabinet (2) stirs, the distance between the tip of stirring branch (52) and heating cabinet (2) inner wall is less than 10 mm.

5. The drying apparatus according to claim 1, wherein: the inside wall of condensing box (3) with the interval sets up between the lateral wall of heating cabinet (2), and the distance scope of the interval between the two is 20mm-300mm, the upper end of heating cabinet (2) with the distance scope of the interval between the interior roof of condensing box (3) is 20mm-300 mm.

6. The drying apparatus according to claim 5, wherein: and a heat insulation layer (6) is arranged between the inner bottom wall of the condensation box (3) and the outer bottom wall of the heating box (2).

7. The drying apparatus according to claim 1, wherein: the vacuum condenser is characterized by further comprising a vacuum mechanism (7), wherein the vacuum mechanism (7) is communicated with the condenser box (3) and keeps a cavity in the condenser box (3) to be in a vacuum environment.

8. The drying apparatus according to claim 1, wherein: and the inner wall of the condensation box (3) is provided with a hydrophobic coating.

9. The drying apparatus according to claim 1, wherein: the condenser also comprises a plurality of radiating fins which are uniformly arranged on the inner wall of the condenser box (3) at intervals.

10. The utility model provides a drying system which characterized in that: comprising a drying apparatus according to any one of claims 1 to 8.

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