JPS5813983A - Method and device for drying cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for drying washed or dyed cloth.

Dryers for drying cloth are classified into hot air type, contact heating type, superheated steam type, dielectric heating type, etc. depending on the drying method.

Among these dryers, the hot air dryer dries the fabric to be treated rapidly, so compared to other dryers, the hot air dryer has poor migration, texture, etc. Alternatively, it is widely used for final drying.

By the way, the method of naturally drying the cloth to be treated is superior to the above-mentioned hot air dryer in terms of migration and texture, and is the most preferable drying method from the viewpoint of quality, but it takes a long time to dry. There are 11 problems with swords and kari, and they are easily affected by the weather.

Therefore, it is an object of the present invention to provide a drying method and apparatus that can achieve almost the same effectiveness as natural drying and can efficiently dry L. .

In this invention, the cloth to be treated is transported to a drying chamber into which dry air is blown after dehumidifying treatment, and in the transportation room, the cloth to be treated is moved in two directions at right angles to each other. The drying process is performed by spraying dry air after drying.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown, the inside of the drying box 1 is a drying chamber 2, and the drying chamber 2 is provided with a roller frame 3.

As shown in FIG. 4, the roller frame 3 includes opposing side frames 4.4, and one side of the side frames 4 has an inlet 5 formed at the top of one side of the drying box 1.
1 and extends from there toward an outlet 6 formed on the other side of the box 1.

A plurality of upper rollers 7 are passed in parallel between the upper parts of this side frame 4.4, and a plurality of lower rollers 8 are passed in parallel between the lower parts. Each of the upper rollers is driven by a motor 9 provided at the lower right side of FIG. 1 to rotate in the direction of the arrow in the figure.

As shown in FIG.
It is pulled out into the drying chamber 2 by passing around guide rollers 11 provided in the drying chamber 2.

The cloth S to be treated that has been pulled out into the drying chamber 2 is sequentially passed from the L section roller 7 1 to the lower roller 8, from this lower roller 8 to the upper roller rough, and reaches the outlet 6.
It is taken out to the outside of the drying chamber 2 through a guide roller 12 provided in the drying chamber 2.

A partition plate 13 is provided inside the drying chamber 2 so as not to impede movement of the cloth S to be treated, and the drying chamber 2 is divided into a front chamber 14 and a rear chamber 15 by the partition plate 13. .

On the outside of the drying box 1, as shown in FIG.
As shown in Figure 4, a blower 6, a first dry air generator 17, and a second dry air generator 18 are provided.

The discharge tube 19 of the blower 16 is connected to a heating box 20 provided at the top of the front chamber 14, and the air flowing into the heating box 20 is heated by the action of a heater 21 provided inside the box 20. The heated air is blown out into the front chamber 14 from an air outlet 22 formed in the center of the top plate.

Further, the heated air in the heating box 20 is guided from openings 23 on both sides sandwiching the air outlet 22 to a pair of hot air ducts 24 arranged on both sides of the cloth conveyance path in the front chamber 14.

A plurality of blowing ducts 25 are passed between the pair of hot air ducts 24, and the heated air sent into the blowing ducts 25 is distributed throughout the width direction of the cloth S to be treated through a nozzle (not shown) formed in the blowing duct 25. It is designed to be injected at right angles to.

The first and second dry air generators 17, 1B are equipped with a dehumidifier, although the details are omitted in the embodiment shown in the figure.
The air sucked from the fti section 26 is dehumidified by passing through this dehumidifier, and the dry air is discharged from the discharge cylinder section 27 of the -L section.

The suction cylinder part 26 of the first dry air generator 17 is connected to the drying chamber 2.
The discharge cylinder section 27 is also connected to a first case 28 provided at the L section of the top plate of the rear chamber '15.

The drying air flowing into the first case 28 is passed through a pair of air ducts 28' located on both sides of the conveyance path for the tortoise S to be treated in the rear chamber 15 of the drying chamber 2. It is designed to flow. A plurality of spray ducts 29 are passed between the pair of air ducts 28' and arranged in parallel.
The nozzle 30 is located between the downwardly moving portion S" and the adjacent downwardly moving portion S", and directs the dry air flowing inside the nozzle 30 formed in the portion corresponding to the treated cloth S to the entire width direction of the treated cloth S. And it is designed to be sprayed onto the cloth S at an α angle.

The suction tube 26 of the second dry air generator 18 is connected to the lower part of the drying chamber 2, and the discharge tube 27 is connected to the @2 case 31 provided above the top plate of the mulberry chamber 2.

The second case 31 communicates with a duct 32 extending from the inlet side to the outlet side of the rear chamber at the top plate of the rear chamber 15, and the dry air flowing through the duct 32 is transferred to a chamber formed in a large plate. It flows into the drying chamber 15 through the air outlet 33.

The drying device used in the embodiment has the above-mentioned structure, and its operation will be explained next.

Now, when the blower 16 is operated by vA, the air discharged from the discharge cylinder 19 flows to the heating box 20 which has a built-in heater 21, so that the IUO is generated in this box 20.
It is heated and the temperature rises. This heated air flows through the air outlet 22.
It flows from the opening 23 to the front chamber 14 and from the opening 23 to the mixed weave duct 24.
, and is further injected into the front chamber 14 from the nozzle of the spray duct 25, so that the temperature of the front chamber 14 rises.

Note that the temperature of the front chamber 14 is arbitrary, but if it becomes too high, it will have an adverse effect on the cloth S to be treated, so preferably,
The temperature is maintained at about 20 to 30 degrees Celsius higher than the outside temperature.

Furthermore, when the first dry air generator 17 is driven, the rear chamber 1
5 is suctioned through the suction cylinder 26, this suctioned air is passed through a dehumidifier, dehumidified n, and dry air is discharged from the discharge cylinder 27. This discharged dry air is
Air flows from the case 28 through the duct 28/ and is injected into the rear chamber 15 from the nozzle 30 of the duct 29, which communicates with the duct 28'.

On the other hand, when the second dry air generator 18 is driven, the rear chamber 1
5 is sucked through the suction tube section 26, and dehumidified dry air is discharged from the discharge tube section 27. This dry air flows into the second case 31 and flows into the rear chamber 15 from the indoor air outlet 33, so that the rear chamber 15 is
Due to the action of the dry air generators 17,18, the humidity is kept low.

The second dry air generator 18 controls the temperature of the rear chamber 15 by the function of a refrigeration cycle consisting of a cooler, a reheat condenser, a condenser, a compressor, etc., and a thermostat installed in the rear chamber 15. It is designed to maintain constant humidity.

That is, when the temperature in the rear chamber 15 falls below the set temperature of the thermostat, refrigerant is supplied to the reheat condenser to warm the cooled and dehumidified air, and when the temperature rises above the set temperature, the refrigerant is supplied to the reheat condenser. On the other hand, the supply of coolant and dehumidified air is supplied to the rear chamber 15 at a low temperature by supplying refrigerant to the condensing basin.The lower the humidity and temperature of the rear chamber 15, the better. Relative humidity is preferably around 10%, while temperature is optimally around 30°C.

When the cloth S to be treated is moved in the above state, when the cloth S to be treated moves through the front chamber 14,
The pre-drying process is performed by the action of the heated air sprayed from the nozzle of the spray duct 25 toward the cloth S to be treated, and the action of the heated air sprayed from the Suita port 22 into the front chamber 14 . When the pre-dried cloth S to be treated is transported to the rear chamber 15, the dry air jetted from the nozzle 30 of each spray duct 29 moves the cloth S to be treated until it reaches the outlet 6. The drying air blowing out from the indoor air outlet 33 at right angles to the direction maintains the rear chamber 15 at a constant humidity and temperature, so the cloth S to be treated is effectively dried and the air is blown out from the outlet. The dried cloth S is taken out from 6.

Note that, as in the illustrated embodiment, the fabric to be treated is passed through a front chamber whose temperature has been raised by heated air, and tJI hot air is sprayed at right angles to the fabric being moved in this front chamber to pre-dry it. Thereby, there is an advantage that the dimension from the cloth entry section to the outlet of the rear chamber can be shortened.

As described above, the present invention blows dehumidified dry air into the drying chamber to lower the humidity in the room, transports the fabric to be treated to the drying chamber filled with this dry air, and then in the drying chamber. Since the dry air after dehumidification is sprayed at right angles to the moving cloth, it is possible to dry the cloth efficiently, and since the drying process does not use heated air, it is close to natural drying and dyeing is possible. Even if the fabric is produced after this process, it is possible to obtain a fabric with good texture without discoloration or deterioration.

In addition, since heated air is not used, there is almost no odor, and even if odor does occur, it will not leak outside because the air is circulated between the drying room and the dry air generator. It is possible to achieve effects such as less pollution and no need for anti-pollution measures.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view showing an embodiment of the device according to the invention, Fig. 2 is a partially cutaway plan view of the same, Fig. 3 is a left side view of the same, and Fig. 4 is the same as Fig. 1. FIG. 2 is a sectional view taken along line IV-IV of FIG. 2... Drying room, 5... Entrance, 6... Exit, 7...
- Upper roller, 8... Lower roller, 17... First dry air generator, 18... Second dry air generator, 2
8'...Air duct, 29...Blowing duct, 30.
...Nozzle, 32...Duct Patent applicant Nagasuna Boiler Industry Co., Ltd. Same
Rikio Awaya Agent Kama 1)
Text 2 Figure 3 Figure 1 S

Claims (1)

[Scope of Claims] (1) A door guard in the drying room into which dry air is blown after dehumidifying treatment.When the cloth to be treated is transported and the cloth to be treated moves in the drying room, the cloth to be treated is moved in the direction of movement of the cloth to be treated. A cloth drying method characterized by drying by spraying dehumidified dry air at right angles. Upper rollers extending 1!1 in one direction are provided in parallel on the upper side of the drying chamber with the outlet facing the 2 people, and lower rollers that can rotate simultaneously are provided in parallel on the lower side of the drying chamber. A spray duct extending in the width direction of the cloth to be treated is provided between an upwardly moving part and an adjacent downwardly moving part of the cloth to be treated, which are sequentially passed between the upper roller and the lower roller and conveyed. A nozzle is formed in the part of the duct that corresponds to the cloth to be treated, and a dry air generator is installed outside the drying chamber to dehumidify the air sucked in from the lower part of the drying chamber through a dehumidifier, and the air flows out from the generator. 1. A cloth drying apparatus characterized in that a duct is provided for guiding the drying air to the upper part of the drying chamber and the above-mentioned blower 11 duct.