CN216716825U

CN216716825U - Drying apparatus

Info

Publication number: CN216716825U
Application number: CN202220272212.5U
Authority: CN
Inventors: 沈跃华
Original assignee: Shanghai Hengyuan Polymer Material Co ltd
Current assignee: Shanghai Hengyuan Polymer Material Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-06-10
Anticipated expiration: 2032-02-10

Abstract

The utility model provides a drying device, which adopts two ventilation clapboards to divide a box body into an air inlet area, a drying area and an air exhaust area, so that hot air from a heat pump unit reaches the drying area through a plurality of round small holes on the ventilation clapboards, and the hot air in the drying area also enters the air exhaust area through a plurality of round small holes on the ventilation clapboards, so that the flow of the hot air in the drying area is more moderate and uniform; because the upper portion of drying zone still is provided with a plurality of fans, the direction of fan air-out is unanimous with heat pump heated air circulation's direction, can increase the circulating air volume in the drying zone, consequently, can make temperature, humidity in the whole drying zone more even. When the drying equipment of this embodiment is adopted to dry the paper, because temperature, humidity in the whole drying area are more even, consequently can reach better stoving effect, effectively avoid the drying in-process paper to produce the condition such as curling, fold, improved the yield of paper.

Description

Drying apparatus

Technical Field

The utility model belongs to the technical field of material drying, and particularly relates to drying equipment.

Background

In the production process of paper, need dry to the paper of production, make the moisture in the wet paper fully evaporate to obtain level and dry finished product paper, among the prior art, place wet paper on the assembly line usually, form hot-blastly through electric heating wire and fan, dry wet paper through hot-blastly.

Although the existing equipment can dry paper, a plurality of problems still exist: firstly, wet paper on a production line is heated unevenly, and partial paper has folds, so that the yield is low; secondly, the paper has various types and different thicknesses, and needs to be dried by different processes, and when the types of the paper to be dried are switched, manual monitoring and adjustment are often needed, so that time and labor are wasted, and the production efficiency is influenced; thirdly, in the drying process, the blown hot air is discharged into the air, which causes the waste of heat energy.

Therefore, in order to solve the above problems, a new paper drying apparatus having a correspondingly optimized design is required.

SUMMERY OF THE UTILITY MODEL

The utility model is carried out to solve the problems, and aims to provide drying equipment which can dry paper of various types and different thicknesses and can ensure the drying effect, wherein the utility model adopts the following technical scheme:

the utility model provides a drying device, which is characterized by comprising: the box body is provided with an air inlet and an air outlet; the air supply outlet of the heat pump unit is connected to the air inlet, and the air return inlet of the heat pump unit is connected to the air outlet, so that hot air circulation is formed; the two ventilation clapboards are vertically arranged in the box body and divide the box body into an air inlet area, a drying area and an air exhaust area; and the fan is arranged on the upper part of the drying area and used for increasing the circulating air quantity of the drying area, wherein the air inlet is formed in the air inlet area, and the air outlet is formed in the air exhaust area.

The drying equipment provided by the utility model can also have the technical characteristics that: the temperature and humidity sensing part is arranged in the drying area and is used for acquiring the temperature and the humidity in the drying area; a drying parameter storage part for storing a plurality of groups of preset drying parameters; and the drying control part is used for controlling the heat pump unit based on the sensing result of the temperature and humidity sensing part and the drying parameters so as to control the drying effect of the drying area.

The drying equipment provided by the utility model can also have the technical characteristics that the air outlet direction of the fan is consistent with the direction of the hot air circulation in the drying area.

The drying equipment provided by the utility model can also have the technical characteristics that the number of the fans is multiple, and a partition plate is arranged between every two adjacent fans.

The drying equipment provided by the utility model can also have the technical characteristics that a plurality of small holes are uniformly formed in the ventilation partition plate at intervals.

The drying equipment provided by the utility model can also have the technical characteristics that the extending direction of the ventilation partition plate is consistent with the length direction of the box body.

The drying equipment provided by the utility model can also have the technical characteristics that the number of the air inlets and the number of the air outlets are multiple.

The drying equipment provided by the utility model can also have the technical characteristics that: the air inlet pipeline is used for connecting the plurality of air inlets and the air supply outlet of the heat pump unit; and the air exhaust pipeline is used for connecting the air outlets and the air return inlet of the heat pump unit, wherein the heat pump unit, the air inlet pipeline, the box body and the air exhaust pipeline form a closed hot air circulation channel.

Utility model with the functions and effects

According to the drying equipment, the ventilation partition plate is adopted to divide the interior of the box body into the air inlet area, the drying area and the air exhaust area, so that hot air from the heat pump unit passes through the ventilation partition plate and then reaches the drying area, and hot air in the drying area also passes through the ventilation partition plate and then enters the air exhaust area, and therefore, the flow of the hot air in the drying area can be more moderate and uniform; because the upper portion of drying zone still is provided with the fan, can increase the circulating air volume in the drying zone, consequently, can make temperature, humidity in the whole drying zone more even. When the drying equipment disclosed by the utility model is used for drying paper, the temperature and the humidity in the whole drying area are more uniform, so that a better drying effect can be achieved, the conditions of curling, wrinkling and the like of the paper in the drying process are effectively avoided, and the yield of the paper is improved.

Drawings

FIG. 1 is a sectional view of a main view of a cabinet of a drying apparatus according to an embodiment of the present invention;

fig. 2 is a sectional view of a side view of a cabinet of the drying apparatus in the embodiment of the present invention;

fig. 3 is a sectional view of a top view of a cabinet of the drying apparatus in the embodiment of the present invention;

FIG. 4 is a front view of the air inlet duct of the present embodiment;

FIG. 5 is a top view of the air inlet duct of the present embodiment;

FIG. 6 is a front view of the exhaust duct in the present embodiment;

FIG. 7 is a plan view of the exhaust duct in this embodiment;

fig. 8 is a block diagram showing the structure of the drying control device in the present embodiment.

Reference numerals:

a drying apparatus 10; a case 11; an air inlet 111; an air outlet 112; an air intake area 113; a drying zone 114; a venting zone 115; a ventilation baffle plate 12; a fan 13; a partition plate 131; an air inlet duct 14; an exhaust duct 15; a drying control device 20; a drying parameter storage unit 201; an in-box temperature and humidity sensing portion 202; a drying control section 203; an overall control section 204.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the drying equipment of the utility model is specifically described below with reference to the embodiment and the attached drawings.

In the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

< example >

Fig. 1 is a sectional view of a main perspective of a cabinet of a drying apparatus in the present embodiment.

Fig. 2 is a sectional view of a side view of a cabinet of the drying apparatus in the present embodiment.

Fig. 3 is a sectional view of a top view of a cabinet of the drying apparatus in the present embodiment.

As shown in fig. 1 to 3, the drying apparatus 10 mainly includes a cabinet 11, a ventilation barrier 12, and a plurality of fans 13.

The box 11 is connected to a heat pump unit (not shown in the figure) for accommodating and drying materials. In this embodiment, the material to be dried is paper, and the wet paper is laid on the drying plate and then placed in the case 11.

Along the width direction of box 11, a plurality of air intakes 111 have been seted up to the top of one side of box 11, and a plurality of air outlets 112 have been seted up to the top of opposite side, and air intake 111 is connected to the supply-air outlet of heat pump set through the air inlet pipeline, and air outlet 112 is connected to the return air inlet of heat pump set through the exhaust pipeline to form hot-blast circulation channel. In this embodiment, the number of the air inlets 111 and the number of the air outlets 112 are four, and the distance between two adjacent air inlets 111 and the distance between two adjacent air outlets 112 are substantially the same.

Fig. 4 is a front view of the air inlet duct of the present embodiment.

Fig. 5 is a side view of the air inlet duct of the present embodiment.

Fig. 6 is a front view of the exhaust duct in this embodiment.

Fig. 7 is a side view of the exhaust duct in this embodiment.

As shown in fig. 4 and 5, the four air inlets 111 are connected with the air outlets of the heat pump unit through an air inlet duct 14, and the air inlet duct 14 has a structure matching with the four air inlets 111 and the air outlets; as shown in fig. 6 and 7, the exhaust outlet 112 and the return air inlet of the heat pump unit are connected by an exhaust duct 15, and the exhaust duct 15 has a structure (i.e., a dashed frame in fig. 7) matching the four exhaust outlets 112 and the return air inlet.

Through setting up air inlet pipe 14 and exhaust duct 15, connect box 11 and heat pump set to form the hot air circulating channel of relative confined, not only can make the temperature in the box 11 more stable relatively, and can make full use of heat energy, reach energy-conserving purpose.

A plurality of round small holes (not shown in the figure) are uniformly arranged on the ventilation partition plate 12 at intervals for adjusting the air quantity of hot air. The two ventilation partition plates 12 are vertically arranged in the box body 11 and are respectively close to two sides of the box body 11 along the width direction, and the extending direction (namely the length direction) of the ventilation partition plates 12 is consistent with the length direction of the box body 11, so that the inside of the box body 11 is completely separated along the x direction in the drawing. The interior of the cabinet 11 is divided into an intake area 113, a drying area 114 and a discharge area 115 by two ventilation partitions 12. The air inlet 111 is only communicated with the air inlet area 113, similarly, the air outlet 112 is only connected with the air outlet area 115, and the air inlet 111 and the air outlet 112 are not directly communicated with the drying area 114. Therefore, the hot air from the heat pump unit is not directly blown into the drying zone 114, but uniformly reaches the drying zone 114 through the plurality of small holes of the ventilation partition 12. Similarly, hot air passing through the drying zone 114 exits the drying zone 114 uniformly through a plurality of apertures in another ventilation partition 12 to the exhaust zone 115.

The fan 13 is used to increase the circulating air volume in the drying zone 114. In this embodiment, the number of the fans 13 is four, and the four fans 13 are mounted on the top surface inside the box body 11, that is, above the drying zone 114, through a bracket. The air outlet direction of the fan 13 is consistent with the direction of the hot air circulation, that is, the air outlet direction of the fan 13 is consistent with the width direction of the box body 11 and faces the air outlet 112.

Through two ventilation baffles 12 and four fans 13, the temperature and the humidity in the whole drying area 114 can be more uniform, so that a better drying effect is achieved.

In addition, the drying apparatus 10 of the present embodiment further includes a drying control device, and the drying control device is connected to the heat pump unit and is configured to control the operation of the heat pump unit, so as to control the temperature and humidity in the box 11 and achieve a predetermined drying effect. In this embodiment, drying control device is corresponding industrial computer.

As shown in fig. 8, drying control apparatus 20 includes a drying parameter storage unit 201, an in-cabinet temperature and humidity sensing unit 202, a drying control unit 203, and a general control unit 204.

Among them, the drying parameter storage unit 201 stores a plurality of predetermined sets of drying parameters, as shown in table 1.

TABLE 1 drying parameter table

As shown in table 1, in the present embodiment, the drying parameter storage unit 201 stores five sets of predetermined drying parameters, which are respectively used for drying different types and thicknesses of paper sheets corresponding to different dewatering amounts. Each set of drying parameters includes the number of drying stages and the temperature, humidity, and operation time (i.e., drying duration) of each stage.

Taking the first and fifth sets of drying parameters in table 1 as an example, the dewatering amount corresponding to the first set of drying parameters is 200g, which is used for drying thick paper, because the thick paper is relatively difficult to generate the conditions of turning, folding and the like, the drying stages can be set to be relatively less, each stage directly adopts higher temperature for drying, and simultaneously because the paper is thick, the moisture in the paper reaches the surface of the paper and needs to pass through a longer distance, so the running time is set to be longer.

The amount of dewatering that the drying parameter of the fifth group corresponds is 47g, be used for the very thin paper of stoving thickness, because the paper is very thin, if directly adopt high temperature once only to dry too fast, thin paper produces the condition of turn-ups easily, therefore, the stoving stage sets up more, divide into five stages altogether, the first stage adopts lower temperature, higher humidity is dried, the subsequent stage improves stoving temperature gradually, and the duration in every stage is all relatively short, thereby avoid thin paper to produce the turn-ups, and simultaneously, heat up gradually in order to guarantee to fully evaporate the moisture in the thin paper.

The above description specifically describes the first group and the fifth group of drying parameters as an example, and the settings of the other three groups of drying parameters and the corresponding effects can be analogized in turn.

The in-box temperature and humidity sensing portion 202 includes a plurality of temperature sensors and humidity sensors disposed in the box body 11, and is configured to sense and acquire real-time temperature and humidity in the box body 11.

The drying control part 203 controls the heat pump unit according to the preset drying parameters and the sensing result of the in-box temperature and humidity sensing part 202, so that the temperature and the humidity in the box body 11 are always kept at preset values in the operation time, and the drying effect is ensured. Specifically, the drying control portion 203 compares the temperature and humidity detected by the temperature and humidity sensing portion 202 in real time with the drying parameters predetermined at the current stage, and correspondingly adjusts parameters such as the air output, the heating capacity and the like of the heat pump unit, so that the temperature and the humidity in the drying region 114 are always consistent with the predetermined drying parameters, and the drying effect is ensured.

The overall control unit 204 is used for performing coordinated control of the operations of the drying parameter storage unit 201, the in-cabinet temperature and humidity sensing unit 202, and the drying control unit 203.

As described above, with the drying apparatus 10 of the present embodiment, it is possible to dry paper of different kinds and different thicknesses, and to ensure the drying effect.

Examples effects and effects

According to the drying equipment provided by the embodiment, the box body is divided into the air inlet area, the drying area and the air exhaust area by adopting the two ventilation clapboards, so that hot air from the heat pump unit reaches the drying area through the plurality of round small holes on the ventilation clapboards, and the hot air in the drying area also enters the air exhaust area through the plurality of round small holes on the ventilation clapboards, so that the flow of the hot air in the drying area is more moderate and uniform; because the upper portion of drying zone still is provided with a plurality of fans, the direction of fan air-out is unanimous with heat pump heated air circulation's direction, can increase the circulating air volume in the drying zone, consequently, can make temperature, humidity in the whole drying zone more even. When the drying equipment of this embodiment is adopted to dry the paper, because temperature, humidity in the whole drying area are more even, consequently can reach better stoving effect, effectively avoid the drying in-process paper to produce the condition such as curling, fold, improved the yield of paper.

In addition, because the air inlet of the box body is connected with the air supply outlet of the heat pump unit by adopting the air inlet pipeline, and the air outlet of the box body is connected with the air return inlet of the heat pump unit by adopting the air exhaust pipeline to form hot air circulation, a relatively closed hot air circulation channel is formed, the temperature in the box body is more stable, the heat energy can be fully utilized, and the purpose of saving energy is achieved.

Furthermore, the embodiment of the utility model also controls the operation of the heat pump unit through a drying control device, the drying control device stores preset multiple groups of drying parameters, the preset multiple groups of drying parameters respectively correspond to different dewatering amounts, the drying control device can be applied to drying of paper of different types and thicknesses, fewer drying stages are set for thicker paper, high-temperature and long-time drying is directly performed on the thick paper, more drying stages are set for thin paper, the drying is performed by adopting low temperature and high humidity firstly, and then the temperature is gradually increased. Therefore, the drying equipment of this embodiment can be applicable to the paper to multiple different types, different thickness, and the homoenergetic reaches fine stoving effect, and degree of automation is high, does not need the manual work to monitor, adjust at the stoving in-process, has saved a large amount of manpowers to the quality and the uniformity of final product have effectively been improved.

The above-described embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above-described embodiments.

Claims

1. A drying apparatus, characterized by comprising:

the box body is provided with an air inlet and an air outlet;

the air supply outlet of the heat pump unit is connected to the air inlet, and the air return inlet of the heat pump unit is connected to the air outlet, so that hot air circulation is formed;

the two ventilation clapboards are vertically arranged in the box body and divide the box body into an air inlet area, a drying area and an air exhaust area; and

a fan arranged at the upper part of the drying area and used for increasing the circulating air quantity of the drying area,

wherein the air inlet is arranged in the air inlet area,

the air outlet is arranged in the air exhaust area.

2. The drying apparatus according to claim 1, wherein:

and the air outlet direction of the fan is consistent with the direction of the hot air circulation in the drying area.

3. The drying apparatus according to claim 2, wherein:

wherein, the number of the fans is a plurality,

and a partition plate is arranged between every two adjacent fans.

4. The drying apparatus according to claim 1, wherein:

wherein, a plurality of small holes are uniformly arranged on the ventilation clapboard at intervals.

5. The drying apparatus according to claim 1, wherein:

wherein, the extending direction of the ventilation clapboard is consistent with the length direction of the box body.

6. The drying apparatus according to claim 1, wherein:

the air inlet and the air outlet are multiple in number.

7. The drying apparatus of claim 6, further comprising:

the air inlet pipeline is used for connecting the plurality of air inlets and the air supply outlet of the heat pump unit; and

an air exhaust pipeline for connecting the air exhaust outlets and the air return inlet of the heat pump unit,

the heat pump unit, the air inlet pipeline, the box body and the air outlet pipeline form a closed hot air circulation channel.