JP2559725Y2 - Pneumatic drying system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is a pneumatic drying processing apparatus for drying an object to be washed and dewatered and transferring the dried object by an air flow. It is about.

[Prior Art] Conventionally, for drying of an object to be treated after washing and dehydration such as fluff (down) and feather (feather), the object to be treated is packed in a bag and dried by a known dryer. ing. However, in this case, since it is necessary to pack the object to be processed, it takes time to pack and remove the object from the bag.

Therefore, an apparatus has been developed in which an object to be processed after washing and dehydration is directly dried without transferring the object to be bagged, and the object to be dried is transferred by an air flow.

Hereinafter, this type of pneumatic drying apparatus will be described with reference to FIGS. 6 and 7. FIG.

In the drawing, reference numeral 9 denotes a main body, which is provided with a workpiece inlet 90 below the front surface of the main body 9 and provided with a workpiece outlet 91 below the rear face of the main body 9, and discharges the workpiece 91 to the outlet 91. A damper 92 is provided so as to be openable and closable.

Reference numeral 8 denotes a stirrer. The stirrer 8 includes a rotating shaft 80 and stirring blades 81 fixed to the rotating shaft 80 radially, for example, in a cross shape and alternately. Both ends of the rotating shaft 80 are rotatably mounted at substantially the centers of the front and rear surfaces of the main body 9, and a rotary wing 81 is disposed in the main body 9.

Reference numeral 7 denotes a medicine injection pipe disposed at an upper portion in the main body 9. The medicine injection pipe 7 is connected to a medicine supply device (not shown).
Connect to

Reference numeral 6 denotes a hot air feeder. The hot air feeder 6 includes a first air blower 61 and a second air blower 62 having one end connected to upper portions of the front and rear ends of the main body 9 via screens 60, respectively, and one end provided with a heater 65. , A fourth blower tube 64 having one end connected to the exhaust fan 66, and a switching shutter 6 provided at a connection portion between the first to fourth blower tubes 61, 62, 64, 64.
Consists of seven.

Reference numeral 5 denotes a fan of the suction device. One end of a suction pipe 50 connected to the suction fan 5 is connected to an outlet 91 of the main body 9.

Next, the operation of the above-described pneumatic drying apparatus will be described.

First, an object to be processed, which has been subjected to pre-processing such as washing and liquid removal, is introduced into the main body 9 from the inlet 90. Next, the discharge damper 92
Is closed, the stirring blade 81 is rotated, the switching shutter 67 is set to the state shown by the solid line, the heater 65 is heated, and the exhaust fan 66 is operated.

Then, the object to be processed in the main body 9 is agitated by the agitating blades 81, while the outside air is sucked into the hot air feeding device 6, and
Heated by the heater 65, the hot air is sent into the main body 9 through the third blower tube 63, the switching shutter 67, and the first blower tube 61 as shown by the solid arrow. Therefore, the object to be processed, which is being stirred by the stirring blade 81, is dried by hot air,
The moisture evaporated from the object to be processed is discharged into the atmosphere together with the hot air from the exhaust fan 66 through the second blower pipe 62, the switching shutter 67, and the fourth blower pipe 64 as shown by the solid arrow.

In some cases, the medicine may be ejected from the medicine ejection pipe 7 to the object during the drying process of the object.

When the drying of the workpiece is completed, the rotation of the stirring blade 81, the heating of the heater 65, and the operation of the exhaust fan 66 are stopped, and then the discharge damper 92 is opened and the discharge fan 5 is operated. Then, the processed object after the drying process is discharged from the outlet 91 of the main body 9 to the discharge pipe 50 by the air flow,
Through the discharge pipe 50, it is sent to the processing device of the next step.

[Problems to be solved by the invention]

In the above-described conventional pneumatic drying apparatus, since the main body 9 is of a fixed type (installation type), the objects to be processed are accumulated in the lower part inside the main body 9 and relatively few of the objects to be processed are provided. Lighter ones tend to gather at the top, and relatively heavy ones tend to gather at the bottom.

For this reason, in the above-mentioned conventional pneumatic drying apparatus, the object to be treated put into the main body 9 is stirred by the stirring blade 81. Some of the objects to be processed accumulate in the lower portion of the main body 9, and as a result, there is a problem that uniform drying cannot be performed, and unevenness of the drying occurs. This problem becomes more conspicuous as the amount of the object to be processed put into the main body 9 is larger.

For this reason, in the conventional pneumatic drying processing apparatus described above,
Actually, in order to obtain a uniform drying process, the amount of the object to be processed put into the main body 9 is reduced and the drying process time is lengthened.

Further, as described above, in the above-described conventional technology, even if the stirring blade is rotated, a part of the object to be processed tends to accumulate in the lower part of the main body. In the pneumatic feeding process, it is difficult to reliably transport all of the objects to be processed.

SUMMARY OF THE INVENTION The present invention solves the problems of the prior art as described above, and provides a pneumatic drying processing apparatus capable of performing uniform drying processing and reliably transporting an object to be processed to the next process. Things.

[Means for solving the problem]

In order to achieve the object as described above, the present invention provides a main body provided with a workpiece input port and a pneumatic air inlet on the front face, and a workpiece delivery pipe connected to a suction device on the rear face, It has a cylindrical shape with both ends open, and its body has a porous structure that allows air to pass through but does not allow the object to pass through, with one opening facing the inlet of the main body. And an inner drum rotatably supported in the main body with the other opening facing the workpiece delivery pipe of the main body, a rotation drive device for rotating the inner drum, and a drying air intake. A hot-air feeding device that sends hot air heated by a heater into the inner drum having the porous structure by driving an exhaust fan to dry an object to be processed in the inner drum and discharges the exhaust gas to the atmosphere. An air inlet for pneumatic transport Opening / closing dampers are respectively provided in a pneumatic path formed by a discharge pipe and an air passage for drying, and a drying path formed by an air inlet and an exhaust path for drying. Opening the damper and drying the object to be processed while rotating the inner drum, and closing the damper in the drying path and opening the damper in the pneumatic path to air the object while rotating the inner drum. And a pneumatic transporting step of transporting by a flow is selectively performed.

[Action]

As described above, the present invention includes a drying step of closing a damper of an air duct path and opening a damper of a drying path, and drying an object to be processed while rotating an inner drum. Is opened, and a pneumatic feeding step of transferring an object to be processed by an air flow while rotating the inner drum is selectively performed. Therefore, the drying of the object to be processed and the drying thereof are performed by one apparatus. In addition to being able to carry out pneumatic transport of the object to be processed to the next step, in the drying step, the object to be processed in the inner drum is lifted up by the rotation of the inner drum and then dropped. The hot air from the hot air feeder evenly hits the object moving up and down, so that the object can be dried uniformly and efficiently, and also in the air feeding step,
In the same manner as described above, the object to be processed in the inner drum repeatedly moves up and down, and the object to be moved up and down is put on the airflow, so that the object to be processed can be transferred to the next step extremely smoothly and reliably. .

〔Example〕

An embodiment of the pneumatic drying apparatus according to the present invention will be described below with reference to FIGS.

6, the same reference numerals as those in FIGS. 6 and 7 denote the same parts.

In the drawing, reference numeral 1 denotes a main body, which is provided with an input port 10 at the center of the front surface of the main body 1, and an input door 11 is provided at the input port 10 so as to be openable and closable. A pneumatic air inlet 12 having a damper (shutter) that can be opened and closed is provided at a lower portion of the front surface of the main body 1.
Further, a delivery pipe 13 is provided on the lower side of the rear surface of the main body 1, and a discharge damper 14 is provided in the delivery pipe 13 so as to be openable and closable, and one end of the delivery pipe 13 is connected to a suction device (not shown). tube
Connect 50. In addition, an object-to-be-processed input conveyor 15 is disposed near the input door 11 of the main body 1.

Reference numeral 2 denotes an inner drum. The inner drum 2 has a cylindrical shape with both ends opened, and has a porous structure, for example, a large number of small holes, through which air passes but through which an object cannot pass. Opened or meshed. On the inner surface of the inner drum 2, a plurality of, for example, four workpieces 20 for scraping the object to be processed are fixed by projecting inward along the axial direction of the inner drum 2. One opening of the inner drum 2 is opposed to the input port 10, and the other opening of the inner drum 2 is opposed to the delivery pipe 13.
Is rotatably supported in the main body 1. For example, body 1
Both ends of the inner drum 2 are rotatably supported on the outer peripheral surface thereof by a guide roller 16 provided therein. A rotation driving device 21 is attached to the inner drum 2 by a rotation driving force transmission mechanism 22.
Link through.

Numeral 30 denotes a heater damper provided on the upper part of the main body 1 so as to be openable and closable. A heater 31 is provided between the heater damper 30 and the inner drum 2.

An exhaust damper 32 is provided in the exhaust passage below the main body 1 so as to be openable and closable. An exhaust fan 33 is provided between the exhaust damper 32 and the inner drum 2. These heater damper 30, heater 31, exhaust damper 32, exhaust fan 33
Constitutes the hot air feeder 3.

Reference numeral 7 denotes a medicine injection pipe (nozzle) disposed in the upper part of the inner drum 2 in the axial direction of the inner drum 2. The medicine injection pipe 7 is connected to a medicine supply device such as a check valve 70.
It is connected to a drug supply device consisting of a pump 71, a valve 72, and a tank 73.

Reference numeral 4 denotes a steam supply device that supplies steam to the heater 31 and the medicine injection pipe 7. The steam supply device 4 is provided with a strainer 40, a pressure reducing valve 41, a piston valve 42, a bubble 43, and a pressure gauge 44 between a steam generating source (not shown) and the heater 31. On the other hand, a piston valve is provided between the branch point between the piston valve 42 and the valve 43 and the medicine injection pipe 7.
45 and a valve 46 are provided.

47 is a steam trap connected to the heater 31, 34 is a thermometer provided between the heater 31 of the main body 1 and the inner drum 2, and 35 and 36 are exhaust fans 33 and the inner drum of the main body 1. 2 is a thermostat and a thermometer with a contact provided between them.

The pneumatic drying apparatus of the present invention in this embodiment is:
With the above-described configuration, its operation will be described below.

First, in the charging step, the shutter of the air inlet 12 is closed, the discharge damper 14 of the delivery pipe 13 is closed, and the heater damper 30 is closed.
With the exhaust damper 32 in the open state, the loading door 11 is opened, and the workpiece to be washed and dewatered on the loading conveyor 15 is loaded into the inner drum 2.

When the workpiece is loaded, the workpiece can be loaded while the inner drum 2 is rotated, the heater damper 30 is closed, and the exhaust fan 33 is operated. In this case, since the outside air is sucked into the inner drum 2 from the charging port 10, the processing object is sent to the depth of the inner drum 2 by the air flow, so that the processing object can be quickly charged. Can be.

Next, in the drying step, the shutter of the air intake port 12 is closed, the discharge damper 14 is closed, the heater damper 30 is opened, the exhaust damper 32 is opened, and the input door 11 is closed.
The exhaust fan 33 is operated while rotating the inner drum 2. Then, the outside air heated by the heater 31 enters the inner drum 2, and the object to be processed in the inner drum 2 is dried.

At this time, the object to be processed in the inner drum 2 is repeatedly lifted and dropped by the rotation of the inner drum 2 regardless of its weight. The hot air can be uniformly applied to the object to be dried uniformly and efficiently.

In this embodiment, the inner drum 2 has
Is provided, it is possible to more reliably perform the operation of scraping the object to be processed and dropping it.

The drying process is performed as described above, and the moisture evaporated from the object to be processed is discharged to the atmosphere via the exhaust damper 32 together with the hot air.

In this drying step, a chemical such as a deodorant can be sprayed (sprayed) from the chemical spray pipe 7 onto the object to be processed, if necessary.

Then, in the cooling step, by turning off the heat source of the heater 31 in the same state as in the above-described drying step, the object to be dried that has been dried can be cooled.

This cooling step can be omitted if necessary.

Finally, in the removal step, the shutter of the air inlet 12 is opened, the discharge damper 14 is opened, the heater damper 30 is closed, the exhaust damper 32 is closed, the input door 11 is closed, and the operation of the exhaust fan 33 is stopped. In this state, the suction device is operated while rotating the inner drum 2. Then, an airflow is generated from the air intake port 12 to the delivery pipe 13, and the object to be dried, which is lifted up by the rotation of the inner drum 2 and falls, is placed on the airflow and automatically sucked. It is sent to the next processing unit via 50.

[Effect of the invention]

As described above, according to the present invention, by switching the damper, not only the drying of the workpiece and the pneumatic feeding of the dried workpiece to the next process can be performed, but also the drying process and the pneumatic feeding. In any of the processes, the object to be processed is repeatedly lifted up and down by being rotated by the rotation of the inner drum, so that in the drying process, the object to be processed is evenly exposed to the hot air from the hot-air feeding device, and is uniform and efficient. Drying can be performed well, and in the pneumatic feeding step, all the objects to be processed in the inner drum can be reliably transported while being carried on the transport airflow.

[Brief description of the drawings]

1 to 5 show an embodiment of the pneumatic drying processing apparatus according to the present invention. FIG. 1 is a schematic view showing a main part, FIG. 2 is a plan view, and FIG. 3 is a front view. FIG. 4 is a left side view, and FIG. 5 is a right side view. 6 and 7 are schematic views showing a conventional pneumatic drying processing apparatus. 1 ... body, 10 ... input port, 13 ... delivery pipe, 2 ... inner drum,
Reference numeral 20: accommodation, 21: rotary drive device, 3: hot air feed device, 4: steam supply device, 50: suction pipe, 7: chemical injection pipe, 12: air inlet for air supply, 14: discharge damper for air supply path , 30 ... A damper for the air inlet for drying, 32 ... An exhaust damper for drying.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Hei 2-48092 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] A body provided with a workpiece inlet and a pneumatic air inlet on the front face, and a workpiece delivery pipe connected to a suction device on the rear face, and a cylindrical shape having both ends opened; And the body has a porous structure that allows air to pass through but does not allow the object to pass through,
An inner drum that is rotatably supported within the main body with one opening facing the workpiece input port of the main body and the other opening facing the workpiece delivery pipe of the main body; and A rotary driving device for rotating the drum, and a hot air heated by a heater having a drying air inlet is sent into the inner drum of the porous structure by driving an exhaust fan to dry the workpiece in the inner drum. A hot air feeding device configured to discharge the exhaust gas to the atmosphere, and a pneumatic path including the pneumatic air intake and the processed object delivery pipe; and a drying air intake and an exhaust passage. A drying step of disposing an opening / closing damper on each of the drying paths, closing the damper of the air supply path, opening the damper of the drying path, and drying the workpiece while rotating the inner drum; and the drying path. Closing the damper and opening the damper in the pneumatic path, and selectively performing a pneumatic step of transferring the workpiece by an air flow while rotating the inner drum. Type drying processing equipment.