JP2003004381A - Dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dryer in which lightweight foreign matters are discharged from matters being dried during drying operation, and sorted and collected. SOLUTION: The dryer comprises a preliminary dryer 2, a main dryer 1, and an introduction pipe 5 for supplying hot exhaust air from the main dryer 1 to the preliminary dryer 2 wherein the preliminary dryer 2 comprises an opening 16 made in a throw-in opening door 15 or in the vicinity thereof or in the vicinity of an intermediate door 8 in order to exhaust a part of hot exhaust air from the main dryer 1 to the outside of the dryer, a duct 17 for exhausting a part of hot exhaust air and lightweight foreign matters from the exhausting opening 16 to the outside of the dryer, and a section 18 provided at one end of the exhaust duct 17 on the outer side of the dryer in order to collect the lightweight foreign matters.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous drying device for performing predrying and main drying of an article to be dried such as laundry, and more particularly, to a preparatory article to be dried in which light foreign matter such as vinyl is mixed. The present invention relates to a continuous drying device capable of removing the foreign matter from a material to be dried during a drying process.

[0002]

2. Description of the Related Art Conventionally, when washing used diapers (diapers) that have been packed and collected in vinyl bags from hospitals, recreation facilities, etc., one by one, take out the used diapers from the vinyl bag and put them in the washing machine. Instead, cut the diaper-filled vinyl bag and put a number of cuts in the plastic bag to supply the cleaning solution into the bag, and then insert the diaper into the washing machine while it is still in the bag for washing. Be seen. That is, washing is performed with the diapers mixed with the plastic bags. As a result, even in the drying process of the diaper after washing, the drying process is performed in a state where the diaper and the vinyl bag are mixed.

[0003]

However, when an object to be dried in which foreign substances such as vinyl are mixed is dried by a drying device, the temperature inside the drying device becomes high, so that the mesh of the inner drum of the mesh cylinder of the drying device is meshed. The vinyl etc. adheres (welds) to the part and blocks the mesh part. As a result, the hot air required for the drying process is prevented from flowing into the inner drum, and the time required for the drying process is extended. was there. Further, the foreign matter such as vinyl adhered as described above has to be removed from the mesh portion, which is troublesome.

An object of the present invention is to eliminate the above-mentioned problems, and to provide a drying device for discharging light foreign matter such as vinyl from a material to be dried out of the device during the drying process and separating and collecting it. is there.

[0005]

In order to achieve the above object, the present invention provides a preliminary dryer for introducing an object to be dried into an inner drum through an inlet door, and a preliminary dryer by the preliminary dryer. A main dryer that takes in the dried material to be dried inside by taking it into the inner drum, and takes it out to the outside through an outlet door; and an intermediate door that spatially separates and opens the preliminary and main dryers. In the drying device, which comprises an inlet pipe for supplying the heat exhaust from the main dryer to a preliminary dryer, the preliminary dryer has the inlet door or the vicinity of the inlet door, or in the vicinity of the intermediate door, An exhaust port for discharging a part of the exhaust hot air supplied from the dryer to the outside of the device, and an exhaust path for discharging a part of the exhaust hot air and lightweight foreign matter to the outside of the device from the exhaust port, The first feature is to have.

The present invention is also directed to a loading port door for loading a material to be dried, a discharge port door for discharging the material to be dried after the drying process, and an opening / closing for driving the door to open and close. A mechanism, an inner drum that holds and rotates the object to be dried with a mesh tube, a heater that heats the outside air,
An exhaust fan for exhausting the hot air passing through the inside to the outside of the inner drum, in a drying device, comprising a circulation duct for supplying a part of the hot air exhausted from the exhaust fan into the inner drum again. An exhaust port for exhausting a part of the hot air re-supplied via the circulation duct to the outside of the apparatus, at the inlet door or the vicinity of the inlet door, or the outlet door or the vicinity of the outlet door; A second feature is that an exhaust passage for exhausting a part of the hot air and the lightweight foreign matter to the outside of the device through the exhaust outlet is provided.

Further, the present invention comprises an inclining mechanism which integrally supports the main dryer and the preliminary dryer, and inclines the preliminary dryer so that the preliminary dryer is in an upper position with respect to the main dryer. Is the third feature.

A fourth feature of the present invention is that the air exhaust port is provided above the central axis of the inner drum, and the air exhaust passage is moved upward from the air exhaust port toward the outside of the apparatus. A fifth feature is that the device has a slope that is directed toward the outside of the device, and the angle of elevation from the exhaust port to one end outside the device is greater than 0 degrees and less than 90 degrees. A sixth feature is that a foreign matter collecting unit for discharging the hot air to the outside and collecting the sorted lightweight foreign matter is provided.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a drying apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram for explaining the schematic configuration of the continuous drying apparatus according to the present embodiment, and FIG. 2 is a diagram for explaining the operation of the tilting mechanism according to the present embodiment.

<Construction of Continuous Drying Apparatus According to One Embodiment> The continuous drying apparatus shown in FIG. 1 is roughly classified into a predryer 2 for predrying an article to be dried such as laundry immediately after washing and dehydration. And a main dryer 1 for performing main drying of an object to be dried that has been pre-dried by the preliminary dryer 2, and the main dryer 1 is located below the preliminary dryer 2 by integrally supporting both the dryers. And tilting mechanisms 12 and 13 for tilting so that
An intermediate door 8 is provided between the main dryer 1 and the preliminary dryer 2 to partition the dryers during the drying process.

The main dryer 1 has a discharge door 7 for discharging the dried material to the outside, an opening / closing mechanism 6 for driving the door 7 to open and close, and a mesh for the dried material. It is composed of an inner drum 9 that is held and rotated by a cylinder, a heater 3 that heats the outside air, and an exhaust fan 4 that exhausts the hot air passing through the inside to the introduction pipe 5. A plurality of crosspieces 11 are provided on the inner circumference of the inner drum 9 to scrape the material to be dried by the rotation of the drum 9.

The preliminary dryer 2 has a loading door 15 for loading a material to be dried, an opening / closing mechanism (not shown) for driving the door 15 to open and close, and a mesh-shaped cylinder for the material to be dried. And an exhaust fan 14 that exhausts the hot air inside to the outside air. Further, like the drum 9, a plurality of crosspieces 11 for scraping up the material to be dried by the rotation of the drum 10 are provided on the inner circumference of the inner drum 10.

Further, in the preliminary dryer 2, an exhaust air passage 17 is provided so as to extend outward from the exhaust air outlet 16 at the upper portion of the inlet door 15, and the exhaust heat passage is provided at one end of the exhaust air passage 17 on the outside of the apparatus. A foreign matter collecting unit 18 is provided for collecting the sorted foreign matter such as vinyl while discharging the foreign matter. As the foreign matter collection unit 18, for example, a mesh bag inside a box having mesh sides or a large net-shaped bag is used, but the waste heat is discharged to the outside and foreign matter such as vinyl is used. Any structure may be used so long as it can collect

Here, when the lightweight foreign matter is collected by the foreign matter collecting section 18 by being placed on the exhaust hot air discharged from the air outlet 16 to the outside of the apparatus, it is necessary that the dried matter and the lightweight foreign matter are separated as described later. There is. Therefore, the exhaust port 16 is located on the side surface of the preliminary dryer above the central axis position of the cylindrical inner drum.

Further, when the lightweight foreign matter is collected, even the object to be dried, which does not need to be collected, may be discharged into the air discharge passage 17 from the air discharge port 16 and may be collected by the foreign matter collecting section 18. The air exhaust passage 17 has an inclination such that it goes upward as it goes from the air exhaust port 16 on the inside of the device to one end on the outside of the device, and the matter to be dried accidentally discharged into the air exhaust passage 17 is
It is configured so that it can be dropped by gravity and returned to the inside of the inner drum 10. The elevation angle from the exhaust port 16 to one end on the outside of the apparatus is preferably set to about 45 degrees, but this elevation angle can be set to any value greater than 0 degrees and less than 90 degrees.

Here, although the exhaust port 16 and the exhaust passage 17 are provided above the inlet port door 15, they may be provided at the inlet port door 15 or in the vicinity of the inlet port door 15 and further predrying. It may be provided on the other side surface of the machine 2, specifically, on the side surface above the intermediate door 8.

The tilting mechanisms 12 and 13 serve as fulcrums in which a part of the tilting mechanism 12 rotates while supporting the upper part thereof.
By extending the tilting mechanism 13 in the vertical direction, the pre-dryer 2 is tilted with respect to the main dryer 1 as shown in FIG. The tilting mechanisms 12 and 13 may be composed of a pair of expansion and contraction mechanisms that expand and contract individually. Further, a belt conveyor may be provided between the main dryer 1 and the preliminary dryer 2 and the article to be dried may be transferred by this belt conveyor.

1 and 2 show the drying process and the fractional recovery process operation in which the material to be dried is placed in the preliminary dryer 2 and the main dryer 1 of the continuous dryer having the above-described structure.
Will be described below with reference to.

<Drying Process and Separation / Recovery Processing Operation of Continuous Drying Apparatus According to One Embodiment> The drying operation and separation / collection processing operation in the continuous drying apparatus according to this embodiment will be described below. First, put the dried material in a wet state after washing and dehydration into the inner drum 10 of the preliminary dryer 2 of the continuous dryer,
The material to be dried after the preliminary drying process is put into the inner drum 9 of the main dryer 1, and the heater 3 of the main dryer 1 heats the outside air while rotating the inner drums 9 and 10 to perform the main drying. The hot air of about 150 degrees is supplied into the machine 1 to perform the main drying, and the heat exhausted from the main dryer 1 by the exhaust fan 4 is supplied into the preliminary dryer 2 through the introduction pipe 5. Thus, the exhaust hot air of about 70 to 90 degrees is filled in the preliminary dryer 2, and the preliminary drying is performed. That is, the continuous drying apparatus according to the present embodiment circulates the exhaust heat from the main dryer 1 to the pre-dryer 2 and uses the exhaust heat as a heat source for pre-drying the dried object after washing and dehydration. Is configured. Since the exhaust heat from the main dryer 1 contains a large amount of moisture, the outside air may be mixed with the exhaust hot air and discharged into the preliminary dryer 2.

In the preliminary dryer 2, a part of the exhaust hot air supplied from the main dryer 1 as described above is exhausted from the exhaust port 16 of the preliminary dryer 2 to the outside of the apparatus, so that the arrow in FIG. The wind flow is formed as shown in. When the inner drum 10 rotates in the presence of such a wind flow, the material to be dried containing lightweight foreign matter such as vinyl is scraped up by the plurality of crosspieces 11 and is light in the upper portion of the preliminary dryer 2. The foreign matter and the material to be dried are separated. By subjecting the material to be dried in this separated state to exhaust hot air, the material to be dried is pre-dried. On the other hand, when the lightweight foreign matter is hit by exhaust hot air,
The lightweight foreign matter is carried by the exhaust hot air generated in the dryer 2 and discharged from the exhaust port 16 to the outside of the apparatus, and is separated and collected by the foreign matter collecting unit 18 through the exhaust passage 17.

Also in the main dryer 1, as in the case of the preliminary dryer 2, the rotation of the inner drum 9 causes the plurality of bars 11 to scrape up the material to be dried including light foreign substances such as vinyl. The material to be dried is scattered above the inside of the main dryer 1. The dried object in the separated state is hit with hot air heated by the heater 3, and the dried object is finally dried.

As described above, the continuous drying apparatus according to the present embodiment performs the drying process and the foreign matter separating and collecting process.

<Drying Material Transfer Operation of Continuous Drying Apparatus of One Embodiment> Next, the drying object transfer operation of the continuous drying apparatus of the present embodiment will be described below. Once the predetermined drying and separation / collection processing in both dryers 1 and 2 is completed as described above, this apparatus drives the tilting mechanisms 12 and 13 with the intermediate door 8 closed as shown in FIG. Then, the apparatus is tilted, the outlet door 7 is opened by the opening / closing mechanism 6, and the inner drum 9 of the main dryer 1 is rotated, so that the articles 9 to be dried in the main dryer 1 are gravitationally moved and the inner cylinder 9 is rotated. It is discharged to the outside by reducing the static frictional force due to the rotation of the drum 9.
At this time, the tilting mechanisms 12 and 13 may vibrate up and down to reduce the static friction force to assist the discharge.

After discharging the material to be dried that has been fully dried as described above, the apparatus closes the discharge door 7 and opens the intermediate door 8 while keeping the dryer inclined. Further, by rotating the inner drum 10 of the pre-dryer 2 and reducing the static frictional force due to the rotation of the inner drum 10, the material to be dried in the inner drum 10 of the pre-dryer 2 is transferred to the inner drum of the main dryer 1. It can be transferred to the drum 9 by gravity. still,
At this time, the tilting mechanisms 12 and 13 vibrate up and down to reduce the static friction force, thereby assisting the transfer.

After transferring the material to be dried in the preliminary dryer 2 into the main dryer 1 as described above, the present apparatus is arranged so that each tilting mechanism 12,
The apparatus is returned to the horizontal position by 13, and the operator or automatically, with the intermediate door 8 closed, inserts a new object to be dried after washing and dehydration into the predryer 2 by opening the inlet door 15. Thus, new preliminary drying and main drying can be continuously performed.

As described above, according to the continuous dryer of the present embodiment, the preliminary drying and the main drying process can be continuously performed, and the material to be dried is subjected to the preliminary drying process in the preliminary dryer 2. Lightweight foreign substances such as vinyl mixed in the inside can be discharged to the outside of the device and separately collected.

<Drying Device of Other Embodiments> In the above first embodiment, a continuous drying device capable of separating and collecting lightweight foreign matter is described. With the configuration of the drying device that is performed on the inner drum,
It is also possible to provide a device that can separate and collect a lightweight foreign matter. Hereinafter, a drying apparatus according to another embodiment will be described with reference to FIG. FIG. 3 is a diagram for explaining a schematic configuration of a drying device according to another embodiment.

<Structure of Continuous Drying Apparatus of Other Embodiments> The drying apparatus 21 shown in FIG. 3 has a loading port door 28 for loading the material to be dried and the material to be dried after the drying process is discharged to the outside. An outlet door 27 for opening and closing, an opening / closing mechanism 26 for driving the door 27 to open and close, an inner drum 22 that holds and rotates the object to be dried by a mesh tube, and a heater 23 that heats the outside air. An exhaust fan 24 for exhausting the hot air passing through the inside to the outside of the inner drum 22, and a circulation duct 25 for supplying a part of the hot air exhausted from the exhaust fan 24 into the inner drum 22 again. Has been done. A plurality of crosspieces 29 are provided on the inner circumference of the inner body drum 22 to scrape the material to be dried by the rotation of the drum 22.

Further, in the drying device 21, an exhaust passage 31 is provided so as to extend from the exhaust outlet 30 at the upper part of the inlet door 28 toward the outside, and exhaust heat is exhausted from one end of the exhaust passage 31 on the outside of the device. A foreign matter collection unit 32 is provided for collecting the foreign matter such as the separated vinyl while discharging the foreign matter. As the foreign matter collecting unit 32, as in the first embodiment, for example, a box having meshes on each side and a mesh bag inside or a large net-like bag is used. Any structure may be used as long as it can be discharged and foreign matter such as vinyl can be collected.

Here, as in the first embodiment, the exhaust passage 31 has an inclination so that it goes upward as it goes from the exhaust port 30 inside the device to one end on the outside of the device. The material to be dried discharged to the inside is dropped by gravity and can be returned to the inside of the inner drum 22.
The elevation angle from the exhaust port 30 to one end on the outside of the device is 4
Although it is preferable to set the elevation angle to about 5 degrees, this elevation angle can be set to any value greater than 0 degree and less than 90 degrees.

Further, although the air exhaust port 30 and the air exhaust passage 31 are provided in the upper portion of the inlet port door 28, they may be provided in the inlet port door 30 or in the vicinity of the inlet port door 30,
Further, it may be provided on the discharge door 27 or on the side surface of the apparatus near the discharge door 27.

The drying / sorting processing operation in the state where the material to be dried is placed in the drying device 21 constructed as described above will be described with reference to FIG.

<Drying Process Operation of Continuous Drying Apparatus of Other Embodiments> First, the wet material after washing and dehydration is put in the inner drum 22 of the drying device 21, and the inner drum 22 is rotated while rotating. The heater 23 of the drying device 21 heats the outside air to supply hot air of about 150 degrees into the drying device 21 to perform the drying process. Here, a part of the heat exhausted from the drying device 21 by the exhaust fan 24 is supplied again into the drying device 21 via the circulation duct 25. That is, the drying device 21 according to the present embodiment is configured to reuse the exhaust heat from the drying device 21.
Since the exhaust heat from the drying device 21 contains a large amount of moisture, the outside air may be mixed with the exhaust hot air and resupplied into the drying device 21.

Since a part of the exhaust hot air re-supplied as described above is exhausted from the exhaust port 30 to the outside of the apparatus, FIG.
A wind flow is formed as shown by the arrow. When the inner drum 22 rotates in the presence of such a flow of wind, the material to be dried including lightweight foreign matter such as vinyl is scraped up by the plurality of crosspieces 29, and the lightweight foreign matter inside the drying device 21. And the material to be dried are in a separated state. The dried hot air is re-supplied to the dried material in the separated state, whereby the dried material is dried. On the other hand, when the hot foreign matter hits the lightweight foreign matter, the lightweight foreign matter is discharged from the exhaust port 30 to the outside of the apparatus along with the flow of the hot exhaust air generated in the drying device 21, and the foreign matter is collected through the exhaust path 31. Part 32 collects separately.

The material to be dried, which has been subjected to the drying process and the foreign matter sorting / collecting process in this manner, is discharged to the outside of the apparatus 21 through the discharge port door 27 opened by the opening / closing mechanism 26, and the entire drying process step is completed. . In this way, even with a drying device in which the entire drying process is performed with a single inner drum, it is possible to separate and collect lightweight foreign matter.

[0036]

As described above, according to the present invention, during the drying process, a flow of air is generated so that a part of the hot air is exhausted from the exhaust port, and the inner drum is rotated to dry the air. While performing the treatment, lightweight foreign matter such as vinyl mixed in the material to be dried can be discharged to the outside of the apparatus and separately collected.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a schematic configuration of a continuous drying apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining the operation of the tilting mechanism in the present embodiment.

FIG. 3 is a diagram for explaining a schematic configuration of a drying device according to another embodiment.

[Explanation of symbols]

1: main dryer, 2: preliminary dryer, 3: heater, 4: exhaust fan, 5: introduction pipe, 6: opening / closing mechanism, 7: outlet door,
8: Intermediate door, 9: Inner drum (main dryer), 10: Inner drum (preliminary dryer), 11: Crosspiece, 12: Tilt mechanism (main dryer side), 13: Tilt mechanism (preliminary dryer) Side), 1
3: collection box, 14: exhaust fan, 15: inlet door, 1
6: Exhaust port, 17: Exhaust passage, 18: Foreign matter collection unit.

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3L113 AA07 AB03 AC01 AC46 AC49                       AC68 AC73 AC75 BA14 DA05                       DA07                 4L019 BB04

Claims (6)

[Claims] 1. A pre-dryer for introducing a material to be dried into an inner drum through an inlet door to perform pre-drying, and a material to be dried preliminarily dried by the pre-dryer into an inner drum to book. A main dryer that is dried and taken out to the outside through an outlet door, an intermediate door that spatially separates and opens and closes the spare and main dryers, and heat exhaust from the main dryer is supplied to the preliminary dryer. Introducing pipe, which is, the pre-dryer, in the vicinity of the inlet door or the inlet door, or in the vicinity of the intermediate door, a part of the exhaust hot air supplied from the main dryer A drying device, comprising: an air exhaust port for exhausting the air to the outside of the device; and an air exhaust passage for exhausting part of the exhaust hot air and lightweight foreign matter to the outside of the device from the air exhaust port. 2. A loading port door for loading a material to be dried, a discharge port door for discharging the material to be dried after the drying process to the outside, and an opening / closing mechanism for driving the door to open and close. An inner drum that holds and rotates the object to be dried by a mesh cylinder, a heater that heats the outside air, and an exhaust fan that exhausts the hot air passing through the inside to the outside of the inner drum.
A drying device comprising: a circulation duct for supplying a part of the hot air exhausted from the exhaust fan into the inner drum again, the inlet door or the vicinity of the inlet door, or the outlet door Alternatively, in the vicinity of the outlet door, an exhaust port for discharging a part of the hot air re-supplied through the circulation duct to the outside of the device, and a part of the hot air and a lightweight foreign substance are discharged from the exhaust port to the outside of the device. An exhaust path for removing the air. 3. A tilting mechanism that integrally supports the main dryer and the preliminary dryer, and tilts the main dryer so that the preliminary dryer is in an upper position with respect to the main dryer. The drying device according to claim 1. 4. The drying device according to claim 1, wherein the air outlet is provided above a central axis of the inner drum. 5. The exhaust passage has an inclination such that it goes upward as it goes from the exhaust outlet to the outside of the device, and the elevation angle from the exhaust outlet to one end on the outside of the device is greater than 0 degrees and less than 90 degrees. The drying device according to claim 1 or 2, further comprising: 6. The foreign matter collecting unit for discharging the exhaust hot air to the outside and collecting the sorted lightweight foreign matter is provided at one end of the exhaust path on the apparatus outside side. , 3, 4 or 5 drying apparatus.