JPS6089674A - De-liquid drying method of wash - 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 mainly relates to a method for removing and drying metal short fibers by removing the washing liquid and drying the fibers after washing them.

One of the methods for producing short metal fibers is by vibration cutting, and cutting fluid may be used in the cutting process, in which case it is necessary to remove the cutting fluid.

To remove the cutting fluid, the short metal fibers are washed, dehydrated, and dried. In conventional cleaning, dewatering, and drying processes of this kind, the material was washed in a washing tank using water as the washing liquid, dehydrated in a centrifugal dehydrator, and dried in a separate hot air dryer. In a centrifugal dehydrator, the wall of a container containing short metal fibers containing washing water is formed into a net shape, and by rotating the container, the washing water containing washing water is separated and discharged using centrifugal force. A hot air dryer has multiple shelves in a room separated from the outside world, and the shelves are shaped like a net, and can accommodate one dehydration process. The structure is such that air heated to 80 to IoO<0>C is sent from below to above and exhausted from above. In this dryer, it was difficult for hot air to pass between the metal fibers, and it took more than three hours to dry them. In addition, methods using such conventional equipment require steps to transfer the short metal fibers to be cleaned from the washing tank to the dehydrator and from the dehydrator to the dryer. It is necessary to handle it with care so as not to bend it, which poses a problem that requires a lot of effort and time.

There was also the problem of requiring equipment for each process.

As described above, this invention is a deliquid drying treatment method that can significantly reduce labor and drying time compared to conventional methods, and can deliquify and dry washed items with a single integrated device. The purpose is to provide

The method of the present invention involves supplying heated air to the center of rotation of the cleaning object while continuing the rotational movement after finishing the cleaning and applying a rotational motion to the cleaning object containing the cleaning liquid and removing liquid by a centrifugal separation method. This method is characterized by bringing heated air into contact with the object to be cleaned.

In the method of the present invention, when the object to be washed is washed and then most of the washing liquid contained in the object is centrifuged, heated air is then Because the liquid remaining in the cleaning material is brought into contact with It points outward and passes through the object to be washed, effectively drying it. Furthermore, by opening the air supply pipe that supplies heated air to the center of the conventional centrifugal dehydrator, it is possible to create an integrated undressing and drying device. Therefore, the trouble of transferring the washed items from the dehydrator to the dryer (or drying room), which was previously required, can be omitted, and the time required for drying can be shortened, as well as reducing the number of equipment by one. It will be done.

However, the method of the present invention is effective only for dehydrating and drying short metal fibers, and is also effective for dehydrating and drying granular or sand-like materials, such as grains, for a short time after washing, and is also effective for dehydrating clothes after washing. It is also applicable to drying.

In addition, since the method of this invention is configured to perform centrifugal dehydration,
A washing step before the dewatering step can also be appropriately combined. In other words, by supplying cleaning liquid near the center of the swirl while applying the same swirling motion to the cleaning object as during centrifugal dehydration, the cleaning liquid passes through the cleaning object due to centrifugal force, and cleaning is performed during that time. It is. In this way, the three steps of washing, deliquification, and drying can be performed with one device.

One embodiment of the method of this invention will be described below. The figure schematically shows the configuration of an apparatus for cleaning, dehydrating, and drying short metal fibers containing cutting fluid produced by the chatter vibration cutting method used in the method of the present invention. In the figure, 1 is a wire mesh container, 2 is a rotating frame, 3 is an envelope, 4 is a liquid supply nozzle, and 5
is a heated air supply port, and 6 is a motor.

The wire mesh container 1 has a mesh so small that short metal fibers of the cleaning material cannot pass through, and has a diameter of 60 cm and a height of 30 cm.
It is formed by a side cylindrical peripheral wall, a raised bottom wall at the center, and a portion where the upper opening edge extends slightly inward.

The rotating frame 2 is configured to rotate while accommodating the container 1. The frame portion for accommodating the container 1 is formed of a steel plate with many small holes, and the bottom portion has a hole corresponding to the container 1. It has a raised part with no small hole drilled in the raised part. A shaft 10 is formed extending downward from the center of the lower surface of the bottom portion, and the shaft 10 is supported by a bearing 11 provided in the envelope 3.

The envelope 3 is formed in the shape of a container surrounding the frame of the rotating frame 2 with a narrow interval, is attached to the upper opening via a hinge at m12 so as to be openable and closable, and has legs 13 at the lower part. ing. A drain pipe/exhaust pipe 14 is connected to the bottom of the container-shaped portion.

The liquid supply nozzle 4 is provided in an annular shape facing downward at the center of the lower surface of the lid 12, and is connected to a liquid supply device (not shown) via 'J+5. Hikoo, the liquid supply device is designed to switch between supplying cleaning liquid and rinsing liquid.
The structure is such that the liquid exiting to the pipe 14 can be recirculated as necessary.

The heated air supply port 5 opens downward at the center of the annular liquid supply nozzle 4 provided in the lid 12, and supplies heated air heated to 80 to 100°C via the pipe 16. connected to a supply device (not shown).

The motor 6 moves the rotating frame 2 together with the container I at 300 Or, p,
It is a drive source that rotates at ffl, and 17 in the figure is a V-belt.

When using this cleaning, dehydration, and drying device, cut short metal fibers 20 are stored in the container (1), and the container (1) is placed in the rotating frame (2), the lid (12) is closed, and the device is operated. do. First, when the motor 6 is operated to rotate the rotary frame 2, the cutting fluid is separated and discharged by centrifugal force.

Next, when water is supplied as a cleaning liquid from the liquid supply nozzle 4, the cleaning liquid moves outward through the layer of short metal fibers 20 due to centrifugal force, thereby cleaning the short metal fibers 20. In this case, since the cleaning liquid is water, no separate rinsing is performed.

After the appropriate cleaning time has passed, stop the water supply and open the heated air supply port 5.
Heated air is supplied from At this time, the rotating frame 2 continues to rotate. The heated air passes through the layer of short metal fibers 20 from the center to the outside and is discharged from the tube 14 to the outside world. Note that a heat exchanger may be provided in the middle of the pipe 14 to recover heat and use it for preheating the air.

When drying is completed, the operation is stopped and the short metal fibers 20 are taken out together with the wire mesh container l.

In this example, adequate washing and dehydration required 10 minutes, and adequate drying required 15 minutes. The time required for washing and dehydration is approximately the same as before, but the drying time is significantly shorter. In addition, in this embodiment, the short metal fibers 20, which are the objects to be washed, are washed, dehydrated, and dried while continuing the rotating motion, so that in addition to dehydration and drying, washing is also effective. This has the advantage of saving more effort.

[Brief explanation of drawings]

The figure is a longitudinal sectional side view showing a schematic configuration of a washing, dehydrating and drying apparatus used in an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Gold and steel container, 2... Rotating frame, 3... Envelope, 4... Liquid supply nozzle, 5... Heated air supply port, 6...
··motor. Patent applicant Kobe Steel Works Co., Ltd. Agent Tetsu Shimizu and 2 others

Claims (1)

[Claims] (1) After finishing the cleaning and applying a swirling motion to the cleaning object containing the cleaning liquid and deliquifying it using a centrifugal separation method, while continuing the swirling motion, heated air is supplied to the center of rotation of the cleaning object. A deliquid drying method characterized by bringing heated air into contact with.