Paper tube drying hot air circulation structure

Abstract

The utility model discloses a paper tube drying hot air circulation structure, which comprises a drying room, heat exchangers, fans and a pipeline, and is characterized in that the drying room is fixedly connected with a plurality of first fans and a plurality of heat exchangers, an air deflector is hinged on the drying room, the bottom of the drying room is fixedly connected with a fresh air pipe, and a preheating coil pipe is connected above the fresh air pipe; according to the multi-layer paper tube drying room, the problem that moisture is not uniform after paper tubes are dried is solved, waste of tube heads of the paper tubes is reduced, in the multi-layer paper tube drying room, the paper tubes are fed from the top and discharged from the bottom, the paper tubes are conveyed from the upper layer to the lower layer through the layer transferring device between the upper layer and the lower layer, and the upper and lower layer conveying mechanism is synchronous with the layer transferring mechanism; paper tubes can be dried step by step, the temperature control system and the moisture removal system are automatically adjusted, continuous online drying is achieved, and the qualified rate of finished products is effectively increased.

Description

Technical Field

[0001] The utility model relates to the technical field of paper tube processing, in particular to a hot air circulation structure for drying paper tubes. Background Art

[0002] At present, the length of paper tube mother tubes used in paper mills is 4-10 meters. The traditional drying method is vertical suspension or horizontal placement, and direct blowing by drying fans. The drying temperature is linearly controlled based on experience. In the paper tube drying process, there will be problems such as waste of paper tube length, uneven drying, different humidity of paper tubes, poor straightness, and poor roundness of paper tubes, which reduces the qualified rate of finished products, generates waste, and presents problems. Utility Model Content

[0003] In view of the defects in the prior art, the utility model provides a paper tube drying hot air circulation structure to solve the existing problems.

[0004] The utility model is realized through the following technical scheme: a paper tube drying hot air circulation structure, comprising a drying room, a heat exchanger, a fan and a pipeline, characterized in that: the drying room is fixedly connected to a plurality of first fans, the drying room is fixedly connected to a plurality of heat exchangers, an air guide plate is hinged on the drying room, a new air duct is fixedly connected to the bottom of the drying room, and a preheating coil is connected above the new air duct.

[0005] Preferably, the first fan and the heat exchanger are a group and fixed at both sides of the drying room at a certain interval. The heat exchanger is connected to a pipeline, and the pipeline is connected to a temperature control flow valve and a steam safety valve.

[0006] Preferably, the heat exchanger is connected to a condensate collection tank via a pipeline, and the condensate collection tank is connected to a water pump.

[0007] Preferably, a fresh air outlet is provided on the fresh air duct, and the fresh air duct is connected to a fresh air pit cover.

[0008] Preferably, the drying room is fixedly connected to an air duct, a second fan is fixedly connected to the air duct, and a regulating valve is fixedly connected to the air duct.

[0009] Preferably, the drying room is 5-10 meters wide.

[0010] The beneficial effects of the utility model are reflected in: solving the problem of uneven moisture content of paper tubes after drying, reducing the waste of paper tube heads, in a multi-layer paper tube drying room, paper tubes are fed from the top and discharged from the bottom, and the paper tubes are sent from the upper layer to the lower layer through a layer transfer device between the upper and lower layers, and the upper and lower layer conveying mechanisms are synchronized with the layer transfer mechanism; the paper tube drying process can be carried out step by step, the temperature control system and the moisture removal system are automatically adjusted, and the drying is continuously carried out online, effectively improving the qualified rate of finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0012] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the preheating coil structure of the utility model.

[0016] In the attached figure, 1. first fan, 2. heat exchanger, 3. air guide plate, 4. fresh air duct, 5. fresh air outlet, 6. fresh air pit cover, 7. steam safety valve, 8. temperature control flow valve, 9. condensate collection box, 10. water pump, 11. drying room, 12. pipeline, 13. air duct, 14. second fan, 15. regulating valve, 16. preheating coil. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0019] For ease of description, spatial relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature shown in a figure relative to another element or feature. It should be understood that the spatial terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figure is inverted, elements described as being "below" other elements or features will be positioned "above" the other elements or features. Thus, the exemplary term "below" may include both upper and lower orientations.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation of the present invention is described in detail below in conjunction with specific embodiments: Figure 1-Figure 4 The utility model shown is realized by the following technical scheme: a paper tube drying hot air circulation structure, including a drying room 11, a heat exchanger 2, a fan and a pipeline 12, characterized in that: the drying room 11 is fixedly connected to a plurality of first fans 1, the drying room 11 is fixedly connected to a plurality of heat exchangers 2, an air guide plate 3 is hinged on the drying room 11, a fresh air duct 4 is fixedly connected to the bottom of the drying room 11, and a preheating coil 16 is connected above the fresh air duct 4.

[0022] The first fan 1 and the heat exchanger 2 are a group and are fixedly connected to both sides of the drying room 11 at a certain distance. The heat exchanger 2 is connected to a pipeline 12, and the pipeline 12 is connected to a temperature control flow valve 8 and a steam safety valve 7.

[0023] The heat exchanger 2 is connected to a condensate collection tank 9 via a pipeline 12 , and the condensate collection tank 9 is connected to a water pump 10 .

[0024] A fresh air outlet 5 is provided on the fresh air duct 4 , and a fresh air pit cover plate 6 is connected to the fresh air duct 4 .

[0025] The drying room 11 is fixedly connected to an air duct 13 , a second fan 14 is fixedly connected to the air duct 13 , and a regulating valve 15 is fixedly connected to the air duct 13 .

[0026] The drying room 11 has a width of 5-10 meters.

[0027] The working principle of the utility model is as follows: the heat exchangers 2 are respectively placed on both sides of the drying room 11, with a certain distance between them; the heat exchanger 2 and the first fan 1 are a combination, and attention should be paid to the wind direction arrangement of the first fan 1; the air guide plate 3 corresponds to the wind direction of the first fan 1; the fresh air inlet 5 is distributed as needed, and the fresh air pit cover 6 only allows the fresh air to come out from the middle position at the bottom of the drying room 11; the temperature control flow valve 8 is used to adjust the opening as needed; the condensed water after heat exchange can be recovered to the condensed water collection box 9 and recycled through the water pump 10.

[0028] Figure 1 The arrow in the figure indicates the hot air circulation direction. It can be seen that except for the first fans 1 of the two sets of heat exchangers 2 at the entrance of the drying room 11, which are used for blowing to isolate the external cold air, the other four sets of heat exchangers 2 form a bypass flow in an internal circulation. This is because the width of the drying room 11 is 5-10 meters. This design is made to ensure that the paper tubes can be fully dried, and to ensure that the moisture content of the paper tubes after drying is basically consistent without causing the edges of the paper tubes to burn.

[0029] like Figure 3 As shown, this is the dehumidification system of the drying room 11, which mainly discharges moisture from the drying section. The dehumidification air duct 13 is at the top of the drying room 11 and is arranged on both sides to facilitate the discharge of humid hot water vapor. The second fan 14 is frequency-controlled and can be adjusted according to the humidity index in the drying room 11 to achieve the best drying effect. There is an adjusting valve 15 on the air duct 13 to facilitate the timely discharge of humid air from different parts.

[0030] like Figure 4 As shown, the bottom preheating coil 16 of the drying room 11, the fresh air pit cover 6 ensures that the fresh air enters the central position of the bottom of the drying room 11, and the preheating of these preheating coils 16 can achieve a better drying effect.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A hot air circulation structure for drying paper tubes, comprising a drying room (11), a heat exchanger (2), a fan and a pipeline (12), characterized in that: The drying room (11) is fixedly connected to a plurality of first fans (1), the drying room (11) is fixedly connected to a plurality of heat exchangers (2), an air guide plate (3) is hingedly connected to the drying room (11), the bottom of the drying room (11) is fixedly connected to a fresh air duct (4), and the top of the fresh air duct (4) is connected to a preheating coil (16).

2. A paper tube drying hot air circulation structure according to claim 1, characterized in that: The first fan (1) and the heat exchanger (2) are a group and are fixedly connected to two sides of the drying room (11) at a certain distance. The heat exchanger (2) is connected to a pipeline (12), and the pipeline (12) is connected to a temperature control flow valve (8) and a steam safety valve (7).

3. A paper tube drying hot air circulation structure according to claim 1, characterized in that: The heat exchanger (2) is connected to a condensate collection tank (9) via a pipeline (12), and the condensate collection tank (9) is connected to a water pump (10).

4. A paper tube drying hot air circulation structure according to claim 1, characterized in that: The fresh air duct (4) is provided with a fresh air outlet (5), and the fresh air duct (4) is connected to a fresh air pit cover plate (6).

5. A paper tube drying hot air circulation structure according to claim 1, characterized in that: The drying room (11) is fixedly connected to the air duct (13), the air duct (13) is fixedly connected to the second fan (14), and the air duct (13) is fixedly connected to the regulating valve (15).

6. A paper tube drying hot air circulation structure according to claim 1, characterized in that: The drying room (11) has a width of 5-10 meters.

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