CN116294507B

CN116294507B - Cloth drying system

Info

Publication number: CN116294507B
Application number: CN202310292826.9A
Authority: CN
Inventors: 陈忠健; 卢建宇; 吴雪勇
Original assignee: Kelan Technics Environmental Products Co ltd
Current assignee: Kelan Technics Environmental Products Co ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2024-04-05
Anticipated expiration: 2043-03-23
Also published as: CN116294507A

Abstract

The invention relates to the technical field of cloth production, and particularly discloses a cloth pre-drying system. This drying system is through setting up two-way lead screw between interval and adjacent two predrying units, and the cloth is on two-way lead screw in operation in-process butt all the time, and the both sides edge of cloth is all done the motion of keeping away from the cloth center under the drive of the screw thread of two-way lead screw this moment, and the cloth can be stably (can not shake in the expansion process) expansion this moment, and then guarantees that the cloth is heated evenly at drying chamber stoving in-process of design.

Description

Cloth drying system

Technical Field

The invention relates to the technical field of cloth production, in particular to a cloth drying system.

Background

The cloth needs to be desized in the production process, and the cloth is in a soaked state after desizing, and the cloth needs to be dried and shaped by hot air, so that the body and the bones of the cloth are stiff and smooth. When the cloth is dried, the inside of the drying chamber is always in a high-heat state, and in order to keep the temperature in the drying chamber, the natural gas is required to be combusted for supplying heat to the drying chamber all the time. When the cloth is dried and heat-set, a great amount of waste heat is generated in the drying chamber. The excess heat of this section is typically used to pre-dry the cloth.

However, when the existing pre-drying device is used for pre-drying cloth, the edge of the cloth can be rolled up in the heated process, the rolled cloth can be heated unevenly when entering a drying chamber for drying, and the cloth is unqualified after drying and shaping. Some pre-drying devices can make the cloth spread by blowing air to the side of the cloth when pre-drying the cloth, but when spreading the cloth by the method, the spreading effect is not ideal under the disturbance of air flow.

Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

The invention discloses a cloth drying system which is used for solving the problem that the edge of cloth is not completely flattened in the pre-drying process.

In order to achieve the above purpose, the invention adopts the following technical scheme:

a cloth drying system comprising:

a drying chamber;

the blowing structure is used for exchanging heat with the tail gas of the drying chamber and providing hot air;

the device comprises at least two pre-drying units, wherein the pre-drying units are distributed at intervals, each pre-drying unit comprises a shell, a material channel for cloth to pass through is formed by penetrating the shell up and down, an air inlet runner is arranged in the shell, the air inlet runner comprises an air inlet and an air outlet, the air inlet is communicated with the air blowing structure, the air outlet is communicated with the material channel, and the air outlet faces to an outlet of the material channel;

the bidirectional screw rod is arranged between the adjacent pre-drying units and is used for spreading cloth;

and the driving structure is used for driving the cloth to move.

Preferably, at least two pre-drying units are arranged in a "C" shape.

Preferably, the pre-drying unit further comprises a first water blocking structure mounted on the cabinet for blocking water vapor from being sucked from the inlet of the material passage.

Preferably, the pre-drying unit further comprises a second water blocking structure mounted on the cabinet for blocking water vapor in the upstream pre-drying unit from being sprayed into the downstream pre-drying unit.

Preferably, the first waterproof structure comprises two first guide plates installed on the shell, the two first guide plates are respectively arranged at two sides of the inlet of the material channel, and extension lines of the two first guide plates are intersected.

Preferably, the second waterproof structure comprises two second guide plates installed on the shell, the two second guide plates are respectively arranged at two sides of the outlet of the material channel, and extension lines of the two second guide plates are intersected.

Preferably, two air inlet channels are arranged, and the material channel is arranged between the two air inlet channels.

Preferably, the pre-drying unit further comprises an air equalizing plate, the air equalizing plate is mounted on the inner wall of the air inlet runner, and the air equalizing plate is used for enabling all parts of the cloth to be uniformly subjected to air.

Preferably, the air outlet is close to the first guide plate.

Preferably, the blowing structure comprises a heat exchanger and a fan, wherein the heat exchanger is used for exchanging heat with tail gas of the drying chamber, an inlet of the fan is communicated with the outside, an outlet of the fan is communicated with the heat exchanger, and the fan is used for guiding hot gas at the heat exchanger to the air inlet runner.

Compared with the prior art, the invention has the beneficial effects that:

according to the cloth drying device, the heat exchange is performed between the heat exchanger and the tail gas of the drying chamber, so that the heat of the tail gas in the heat exchange chamber can be recovered. By arranging the pre-drying units at intervals, water vapor in the pre-drying units can be discharged more. The material channels are arranged on different straight lines, and the two-way screw rods are arranged between the adjacent predrying units, so that the cloth can be tightly attached to the two-way screw rods when devices such as guide rollers are not needed, and the cloth can be well flattened through the two-way screw rods. Through with air outlet and material passageway intercommunication, and then the steam that produces when making the cloth heated in the material passageway can discharge fast to with the export of air outlet orientation material passageway, thereby make the hot wind can drive the cloth and move more fast.

Drawings

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

fig. 2 is a schematic structural diagram of two pre-drying units according to an embodiment of the invention;

fig. 3 is a schematic diagram of a first structure of three pre-drying units according to an embodiment of the invention;

fig. 4 is a second schematic structural view of three pre-drying units according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a third structure of three pre-drying units according to an embodiment of the invention;

fig. 6 is a perspective view showing a first structure of three pre-drying units according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a first view angle of a pre-drying unit according to an embodiment of the invention;

fig. 8 is a schematic structural diagram of a second view angle of the pre-drying unit according to an embodiment of the invention;

fig. 9 is a front view of a pre-drying unit according to an embodiment of the present invention;

FIG. 10 is a cross-sectional view of FIG. 9;

FIG. 11 is a perspective view of the cross-sectional view of FIG. 10;

fig. 12 is an enlarged view of the a portion structure in fig. 10;

fig. 13 is an enlarged view of the B-section structure in fig. 11.

Description of main reference numerals: 10-a drying chamber, 20-a blowing structure, 21-a heat exchanger, 22-a fan,

30-predrying units, 31-machine shells, 32-material channels, 33-air inlet channels, 331-air inlets, 332-air outlets, 34-air homogenizing plates, 35-air guiding plates, 36-reinforcing ribs, 37-mounting seats, 40-bidirectional screw rods, 50-driving structures, 60-first water-proof structures, 61-first guide plates, 70-second water-proof structures and 71-second guide plates.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The technical scheme of the invention will be further described with reference to the examples and the accompanying drawings.

Examples

The cloth is in a soaking state after desizing, and the soaked cloth needs to be dried and shaped to be packed and collected. The cloth is generally pulled to a drying chamber from the desizing pond through a driving structure for drying, natural gas is always combusted in the drying chamber, and the cloth is dried and shaped after passing through the drying chamber under the high-temperature atmosphere generated by natural gas combustion.

The tail gas of the drying chamber is generally utilized to pre-dry the cloth, so that the aim of accelerating the drying of the cloth is fulfilled. However, in the pre-drying process, the edge of the cloth is rolled up due to heating, if the cloth rolled up at the edge directly enters the drying chamber for drying, the cloth is not uniformly heated when rolled up.

Of course, there are devices in which the edges of the cloth are made to spread out to both sides by the hot air flow in the pre-drying chamber blowing the edges of the cloth. However, when the cloth is blown by the air flow, the cloth is inevitably shaken, and the spreading effect of the edge of the cloth in the shaking process of the cloth cannot be ensured.

So provide a cloth drying system in this application, this drying system is through setting up two-way lead screw 40 between interval and two adjacent predrying units 30, and the cloth is on two-way lead screw 40 in the operation in-process butt all the time, and the both sides edge of cloth is the motion of keeping away from the cloth center all under the drive of the screw thread of two-way lead screw 40 this moment, and the cloth can be steadily (can not shake in the expansion process) expansion this moment, and then guarantees that the cloth is heated evenly at drying chamber 10 stoving design's in-process.

Specifically, referring to fig. 1, the cloth drying system provided by the present invention includes a drying chamber 10, and the drying chamber 10 is used for drying cloth. At the exhaust gas discharging position of the drying chamber 10, a blowing structure 20 is connected, and the blowing structure 20 is used for exchanging heat with the exhaust gas of the drying chamber 10. The output end of the air blasting structure 20 is connected with a pre-drying unit 30, the pre-drying unit 30 is used for pre-drying cloth, and when the tail gas of the air blasting structure 20 and the drying chamber 10 exchanges heat, the air blasting structure 20 blows hot gas into the pre-drying unit 30. The pre-drying units 30 are at least two, the two pre-drying units 30 are arranged at intervals, and all the pre-drying units 30 are provided with hot air by the air blowing structure 20. A driving structure 50 is provided downstream of the pre-drying unit 30, and the driving structure 50 is used to drive the cloth to move. And a bidirectional screw rod 40 is arranged between two adjacent air blowing structures 20, the screw thread directions of the left side and the right side of the bidirectional screw rod 40 are opposite, and when the cloth passes through the bidirectional screw rod 40 which is in butt joint with the cloth under the drive of the driving structure 50, the edges of the left side and the right side of the cloth are moved away from the center of the cloth, so that the cloth can be well unfolded.

Referring to fig. 8 and 11, the pre-drying unit 30 includes a casing 31, a material unit for passing cloth is formed by vertically penetrating the casing 31, and an air inlet channel 33 is provided in the casing 31, the air inlet channel 33 includes an air inlet 331 and an air outlet 332, the air inlet 331 is communicated with the air blowing structure 20, the air outlet 332 is communicated with the material channel 32, and hot air generated by the air blowing structure 20 enters the air inlet channel 33 through the air inlet 331 and then enters the material channel 32 through the air outlet 332. The air outlet 332 faces the outlet of the material channel 32, when the material passes through the material channel 32, the material is blown by the hot air entering the material channel 32, and under the blowing of the hot air, the water vapor is discharged from the lower opening of the material channel 32, so that the liquid carrying rate of the material is reduced. And the pre-drying unit 30 is provided with at least two, when the cloth is dried by the at least two pre-drying units 30, the liquid carrying rate of the cloth is further reduced, and at the moment, the cloth feeding speed of the cloth is further increased, so that the drying efficiency of the cloth is further improved.

Further, in one embodiment of the present invention, adjacent material passages 32 are not collinear. In combination with fig. 2 and 5, as shown in fig. 5, when the material passages 32 of the pre-drying units 30 are arranged in a straight line, the bi-directional screw 40 disposed between adjacent pre-drying units 30 is offset from the material passages 32 and disposed at one side of the material passages 32, thereby enabling cloth to be closely attached to the bi-directional screw 40.

As shown in fig. 5, when the bidirectional screw 40 is deviated from the material passage 32, in order to enable the cloth to be always located between the material passages 32 without blocking the air outlet 332 from the air outlet, two guide rollers are provided between the adjacent two pre-drying units 30, and the bidirectional screw 40 is provided between the two guide rollers. As shown in fig. 5, the cloth is first moved leftward to abut against the bidirectional screw 40 and then rightward to abut against the guide roller under the guide of the guide roller, so that the cloth enters the middle of the material passage 32 from the vertical direction.

Of course, the guide roller and the bidirectional screw 40 may be symmetrically disposed at the right side of the pre-drying structure, i.e., as illustrated by the adjacent two pre-drying units 30 of the lower part of fig. 5.

Still further, in an embodiment of the present invention, at least two pre-drying units 30 are arranged in a "C" shape. Specifically, as shown in fig. 2, at least two pre-drying units 30 intersect to form an obtuse angle ("C" shape) as shown, and at this time, the cloth can be still closely attached to the bidirectional screw 40 without providing a guide bar.

As shown in fig. 3, the three pre-drying units 30 intersect to form a C shape as shown in the drawing, and similarly, the bidirectional screw 40 is disposed between two adjacent pre-drying units 30, and when the cloth is pre-dried, the cloth passes through the three pre-drying units 30 as shown in fig. 3, and at this time, the cloth can still be closely attached to the bidirectional screw 40 without a guide roller, and at this time, the cloth can be well stretched.

Referring to fig. 4, when the two pre-drying units 30 located above and below the middle pre-drying unit 30 are oriented differently, the cloth can be closely attached to the two-way screw 40 when the two-way screw 40 is disposed between the two pre-drying units 30, and the cloth can be well unfolded.

In contrast to fig. 3 and 4, the lateral distance of the three cloth pre-drying units 30 in fig. 3 is significantly smaller than the lateral distance of the three cloth pre-drying units 30 in fig. 4. I.e., the pre-drying unit 30 arranged in a "C" shape in fig. 3 has a smaller volume.

In connection with the use scenario, when the floor space of the apparatus is to be considered during use, a pre-drying unit 30 arranged in a "C" shape as shown in fig. 3 is generally selected. When the floor space is not required to be considered during use, the pre-drying unit 30 shown in fig. 3 or 4 may be used.

Meanwhile, the arrangement of the pre-drying unit 30 disclosed in fig. 2, 3 or 4 is lower in height than the vertical arrangement of fig. 5, and when it is required to be applied to some places with limited heights, fig. 2, 3 and 4 are all preferable choices.

When the number of the pre-drying units 30 is greater than or equal to four, more pre-drying units 30 can be arranged between the pre-drying units 30 above and below, and the larger occupied area is brought by considering that more pre-drying units 30, the arrangement mode shown in fig. 3 with smaller occupied area in the transverse direction should be selected, and the pre-drying units 30 have smaller occupied area in the transverse direction and the vertical direction, and the formed 'C' -shaped pre-drying units 30 can enable cloth to be tightly attached to the bidirectional screw rod 40 without guide rollers.

As shown in fig. 1 to 6, at least two pre-drying units 30 are arranged at intervals, when cloth enters from one pre-drying unit 30 to another pre-drying unit 30, water vapor in the first pre-drying unit 30 is discharged from the downstream of the material passage 32 thereof, and the liquid carrying rate of the cloth in the downstream pre-drying unit 30 is lowered.

Further, the material channels 32 of at least two pre-drying units 30 are arranged on the same straight line, at this time, the contact area between the cloth and the inner wall of the casing 31 can be reduced in the process of passing through the material channels 32, at this time, the friction between the cloth and the casing 31 is smaller, and the cloth running is smoother.

Further, in an embodiment of the present invention, 3 pre-drying units 30 are provided as shown in fig. 3, and three pre-drying units 30 are arranged at intervals along the same line, and when the cloth is dried by the three pre-drying units 30, the liquid carrying rate of the cloth is reduced to the minimum.

Referring to fig. 3 and 10, the pre-drying unit 30 further includes a first water blocking structure 60 mounted on the cabinet 31, the first water blocking structure 60 for preventing water vapor from being sucked from an inlet of the material passage 32.

Since the air outlet 332 is disposed towards the outlet of the material channel 32, the outside of the inlet of the material channel 32 needs to be enlarged at this time, so that the negative pressure formed at the inlet of the material channel 32 is smaller, and thus water vapor is prevented from being inhaled.

The first waterproof structure 60 may be formed by a clamping plate, a sleeve or other structures, and the cross-sectional opening of the first waterproof structure 60 is only required to be larger than the opening of the material channel 32.

Preferably, in an embodiment of the present invention, the first waterproof structure 60 includes two first guide plates 61 installed on the top surface of the casing 31, the two first guide plates 61 are disposed opposite to each other, the two first guide plates 61 are disposed at both sides of the material passage 32, and extension lines of the two first guide plates 61 intersect. An included angle is formed between the two first guide plates 61, and the two first guide plates 61 are matched with the side plates of the machine shell 31 so that the opening above the material channel 32 is gradually enlarged.

When the cloth moves from the upper material passage 32 to the lower material passage 32, the water vapor discharged from the outlet of the upper material passage 32 spreads downward, but the upper opening of the material passage 32 forms only a slight negative pressure, and the water vapor is hardly sucked.

Referring to fig. 3 and 10, the pre-drying unit 30 further includes a second water blocking structure 70 mounted on the cabinet 31, the second water blocking structure 70 for preventing water vapor in the upstream pre-drying unit 30 from being sprayed into the downstream pre-drying unit 30.

When the hot air is blown downward from one of the pre-drying units 30 above, the second water blocking structure 70 slows down the flow rate of the hot air and the water vapor therein, so that the water vapor hardly enters into the pre-drying unit 30 below.

The second water barrier 70 may likewise be formed by a cleat, sleeve, or other structure, with the exception that the cross-sectional opening at the second water barrier 70 is larger than the size of the opening of the material passageway 32. When the hot air with high flow speed in the material channel 32 and the water vapor enter the second water isolation structure 70 with a larger opening from the material channel 32, the flow speed of the water vapor at the second water isolation structure 70 suddenly drops, so that the upper water vapor is prevented from being blown into the lower pre-drying unit 30 by the hot air.

Preferably, in an embodiment of the present invention, the second waterproof structure 70 includes two second guide plates 71 mounted on the bottom surface of the casing 31, the two second guide plates 71 are disposed opposite to each other, the two second guide plates 71 are disposed at both sides of the material passage 32, and extension lines of the two second guide plates 71 intersect. An included angle is formed between the two second guide plates 71, and the two second guide plates 71 are matched with the side plates of the machine shell 31 so that the opening below the material channel 32 is gradually enlarged.

When the cloth moves from the upper material passage 32 to the lower material passage 32, the water vapor discharged from the outlet of the upper material passage 32 spreads downward, but since the lower opening of the material passage 32 is large, the flow speed of the water vapor at the lower opening of the material passage 32 is greatly reduced, i.e., the water vapor is basically dissipated into the air without being blown down into the other predrying unit 30.

In summary, the pre-drying unit 30 disclosed in the present invention forms a micro negative pressure environment at the upper opening of the pre-drying unit 30 by arranging the first guide plate 61, so as to avoid sucking the water vapor discharged from the pre-drying unit 30 above. Meanwhile, the pre-drying unit 30 disclosed by the invention has the advantages that the second guide plate 71 is arranged, so that the flow speed of the water vapor at the lower opening of the pre-drying unit 30 is greatly reduced, and the discharged water vapor is prevented from being blown into the pre-drying unit 30 below. By arranging at least two pre-drying units 30 at intervals, the pre-drying units 30 can discharge water vapor for a plurality of times, and the liquid carrying rate of the cloth is reduced. Simultaneously cooperate in first water proof structure 60 and second water proof structure 70 to avoid vapor to be inhaled again after the discharge, and then make the area liquid rate of cloth greatly reduced, make the cloth walk cloth speed promote greatly, promote the machining efficiency of cloth.

Referring to fig. 10, above the material channel 32, the upper opening of the material channel 32 is an inverted splayed opening, and on the premise that the air outlet 332 needs to be set up as upwards as possible, the length of the upper opening of the material channel 32 extending cannot be too long, at this time, the air flow rate that the upper opening of the material channel 32 can slow down is limited, after two first guide plates 61 are set, the upper opening of the material channel 32 is extended, and the upper opening of the extended material channel 32 is larger. Even if the air flow at the air outlet 332 has a relatively high speed, only a slight negative pressure can be formed at the upper opening of the material passage 32, and the lower pre-drying unit 30 will not be sucked into the water vapor discharged from the upper pre-drying unit 30.

Of course, the angle between the two first guides 61 should be greater than 1 °. Preferably, in an embodiment of the present invention, the included angle between the two first guide plates 61 is between 60 ° and 90 °, and the first guide plates 61 extend upward for a shorter length to obtain a better micro negative pressure environment.

Similarly, the angle between the two second guides 71 should be greater than 1 °. Preferably, in an embodiment of the present invention, the angle between the two second guide plates 71 is between 90 ° and 120 °, and the second guide plates 71 extend downward for a short length to reduce the flow rate of the air discharged from the lower outlet of the material passage 32, thereby preventing the steam from being blown into the lower pre-drying unit 30.

Referring to fig. 9 to 11, two intake runners 33 are provided, and a material passage 32 is provided between the two intake runners 33. The cloth in the material channel 32 is pre-dried by simultaneously feeding air at two sides of the material channel 32, so that the speed of pre-drying the cloth is greatly improved.

Specifically, referring to fig. 12 or 13, the air outlet 332 of the air inlet channel 33 is downward, and the air outlet direction of the air outlet 332 downward is the same as the moving direction of the cloth, so that the moving speed of the cloth is increased by hot air, and the pre-drying efficiency of the cloth is improved.

Further, in an embodiment of the present invention, as shown in fig. 12, the included angle α between the air outlet 332 and the material channel 32 is between 30 ° and 60 °, and the hot air flowing out of the air outlet 332 can better push the cloth to move.

Preferably, in an embodiment of the present invention, the air outlet 332 is disposed above the casing 31, and when the hot air flow in the air outlet 332 moves from the upper portion of the casing 31 to the lower portion of the casing 31, the cloth in the material channel 32 is heated by the hot air flow for a sufficient time, so that the pre-drying of the cloth is more complete.

Meanwhile, a temperature-covering layer is formed between the air inlet channels 33 arranged on two sides of the material channel 32, and the cloth is always in a heated state in the material channel 32, so that the drying effect of the cloth is better.

Further, in an embodiment of the present invention, the distance between two sides of the opening of the air outlet 332 is 1-15mm. Referring to fig. 12 or 13, the casing 31 is bent at the air outlet 332 and two parallel air deflectors 35 are formed at the air outlet 332, and a gap between the air deflectors 35 is the air outlet 332. The interval between the two air deflectors 35 is smaller, so that the hot air flow in the air inlet flow passage 33 can keep a faster flow speed, and water vapor on cloth can be quickly taken away.

The air inlet 331 of the air inlet flow path 33 is provided at an end of the air inlet flow path 33, and in order to uniformly distribute the hot air flowing out of the air inlet flow path 33 at the air outlet 332 over the entire air outlet 332, an air equalizing plate 34 is provided in the air inlet flow path 33. Referring to fig. 7, the air equalizing plate 34 is disposed in the air inlet channel 33, two ends of the air equalizing plate 34 are fixedly connected with two side walls of the air inlet channel 33 respectively, a plurality of through holes are uniformly formed in the air equalizing plate 34, and after hot air passes through the air equalizing plate 34, the hot air is uniformly dispersed along the air equalizing plate 34, so that the hot air flows out of the air outlet 332 uniformly, and the cloth is uniformly dried.

Of course, as shown in fig. 11, since the side surface of the air equalizing plate 34 is in contact with the side wall of the intake runner 33, the thin plates on both sides of the intake runner 33 can be more stable even when the hot air blows.

Further, referring to fig. 12 or 13, reinforcing ribs 36 are provided on the inner wall of the air outlet 332, and the reinforcing ribs 36 are fixedly connected with the two air deflectors 35 respectively, so that the two air deflectors 35 at the air outlet 332 have small shaking amplitude when hot air flows out, and the cloth can be stably pre-dried by the hot air.

Further, referring to fig. 11, a plurality of reinforcing ribs 36 are provided in the intake runner 33, the reinforcing ribs 36 are fixedly connected to the inner wall of the intake runner 33 at intervals, the reinforcing ribs 36 are provided below the air equalizing plate 34, and the reinforcing ribs 36 are matched with the air equalizing plate 34 so that the whole intake runner 33 can be always stable under the blowing of air flow.

Referring to fig. 7 or 8 or 10 or 11, a mounting seat 37 is further mounted on a side wall of the casing 31. After the installation seat 37 is arranged, the casing 31 can be conveniently installed and fixed to the working position.

Referring to fig. 1, the blowing structure 20 includes a heat exchanger 21 and a fan 22, the heat exchanger 21 is used for exchanging heat with the exhaust gas of the drying chamber 10, an inlet of the fan 22 is communicated with the outside, an outlet of the fan 22 is communicated with the heat exchanger 21, and the fan 22 is used for guiding hot gas after heat exchange at the heat exchanger 21 into the air inlet flow channel 33.

The heat exchanger 21 may be an air-air heat exchanger 21, that is, after the tail gas of the drying chamber 10 is introduced into the heat exchanger 21, the cool air at the blower 22 is introduced into the heat exchanger 21, and the cool air (normal temperature gas) is heated and then enters the air inlet channel 33 through the inlet of the air inlet channel 33.

Of course, other types of heat exchangers 21 are also possible for the heat exchanger 21, and the heat exchanger 21 can be used for the basic purpose of achieving the heating of cold air.

As shown in fig. 1, the driving structure 50 is generally installed between the drying chamber 10 and the pre-drying unit 30, but the driving structure 50 may be disposed downstream of the drying chamber 10. The driving structure 50 comprises a driving motor and rollers driven by the motor, wherein the rollers are provided with a plurality of rollers, and the different rollers are arranged at different positions to support the cloth, so that the cloth can be driven to move when the driving motor rotates. It will be understood that equivalents and modifications will occur to those skilled in the art based on the present invention and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention.

Claims

1. A cloth drying system, comprising:

a drying chamber;

the driving structure is used for driving the cloth to move;

at least two pre-drying units are arranged in a C shape;

the pre-drying unit further comprises a first water-proof structure arranged on the shell, wherein the first water-proof structure is used for preventing water vapor from being sucked in from an inlet of the material channel;

the first waterproof structure comprises two first guide plates arranged on the shell, the two first guide plates are respectively arranged at two sides of the inlet of the material channel, and extension lines of the two first guide plates are intersected;

the pre-drying unit further comprises a second water-proof structure arranged on the shell, wherein the second water-proof structure is used for preventing water vapor in the upstream pre-drying unit from being sprayed into the downstream pre-drying unit;

the second waterproof structure comprises two second guide plates arranged on the shell, the two second guide plates are respectively arranged on two sides of the outlet of the material channel, and extension lines of the two second guide plates are intersected.

2. The cloth drying system of claim 1, wherein two of the air inlet passages are provided, and the material passage is provided between the two air inlet passages.

3. The cloth drying system of claim 1, wherein the pre-drying unit further comprises a wind equalizing plate mounted on an inner wall of the air intake runner, the wind equalizing plate being configured to uniformly wind each portion of the cloth.

4. The cloth drying system of claim 1, wherein the air outlet is proximate to the first guide plate.

5. The cloth drying system of claim 1, wherein the blowing structure comprises a heat exchanger for exchanging heat with exhaust gas of the drying chamber and a fan having an inlet in communication with the outside and an outlet in communication with the heat exchanger for directing hot gas at the heat exchanger to the inlet channel.