JPS6032721B2 - Countercurrent cleaning device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a countercurrent cleaning device.

More specifically, the present invention relates to a countercurrent cleaning device that increases the cleaning effect of the fiber east as much as possible and maintains the straight line form of the fiber east stably in the three-spinning process of synthetic fibers. Conventionally, there is a back washer type device for continuously washing textiles, which consists of a combination of steps in which the object to be washed is immersed in a washing tank and squeezed with a mangle. As a result, the cleaning efficiency is low, and the shape of the fibers becomes disordered in proportion to the number of times they pass through the mangle. Moreover, since the cleaning effect per tank is low, in order to obtain the necessary cleaning effect, it is necessary to use multiple tanks, and the increased number of squeezes due to the mangle causes disturbance of the straight shape of the fiber east and external damage. This increases the risk of damage to textile products, and is one of the causes of quality unevenness in textile products. In addition, there is a vibro washer as a continuous cleaning device with a high cleaning effect. this is,
While the cleaning effect is high, the straightness of Senihigashi is greatly affected,
With these cleaning devices, cross-crossing, entanglement, loop formation, etc. occur on the fiber east, and when stretching is performed in the post-process, yarn fraying and uneven stretching occur, resulting in poor yarn quality (grade, physical properties, etc.). etc.) induces plaques. Furthermore, in cases where opening of the fiber east is required, entanglement worsens the opening of the fibers, which is considered to be the biggest drawback of this cleaning device. In addition, as a continuous cleaning device that emphasizes the linearity of the fiber east, we use a pair of partition plates below or above and below the fiber east passing through the washing tank, and in the case of a pair of upper and lower partition plates, the distance between the partition plates There is a device that continuously cleans the fiber east by installing it in a slit shape that is equal to or slightly wider than the thickness of the fiber east and flowing the cleaning liquid counter-current to the traveling direction of the fiber east. However, with this device, as the amount of water passing through the fiber east increases, the cleaning effect decreases, and furthermore, the accompanying flow generated along with the fiber east causes the cleaning water to flow backward in the direction of travel of the fiber east. The contact efficiency between the fibers and the cleaning liquid in the cleaning tank decreases, and the cleaning effect becomes extremely poor. An object of the present invention is to provide a cleaning device that eliminates the drawbacks of such conventional devices. That is, the present invention has an inclined cleaning tank, and a partition plate that divides the cleaning tank into multiple stages in the direction of movement of the object to be cleaned;
In a countercurrent cleaning device in which an upper partition plate and an upper partition plate are provided in the washing tank with an interval above the lower partition plate that allows the object to be cleaned to pass, the lower end of the upper partition plate is more covered than the upper end of the lower partition plate. A countercurrent cleaning device is provided that is located on the inlet side of the object to be cleaned, and that the upper partition plate is inclined toward the outlet side of the object to be cleaned with respect to the lower partition plate.

Hereinafter, one embodiment of the countercurrent cleaning device of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view of the countercurrent cleaning device of the present invention.

The angle of inclination of the inclined washing tank 1 has an optimum range depending on the object to be washed, for example, the thickness or width of the fiber, its running speed, and the amount of washing liquid.
A temperature of 45 degrees is preferable in terms of ease of operation and cleaning effect. The object to be cleaned 2 moves in the direction of the arrow. The object to be cleaned enters the washing tank from the bottom of the inclined washing tank as shown by the arrow.
Proceed towards the top. Reference numeral 3 indicates a cleaning liquid introduction pipe, and 4 indicates a cleaning liquid discharge pipe, in which the cleaning liquid flows in the direction of the arrow and comes into countercurrent contact with the object to be cleaned.

There is a lower partition plate 5 that partitions the cleaning tank 1 into multiple stages in the traveling direction of the object 2 to be cleaned, that is, in its length direction. The lower partition plate 5 is usually provided approximately perpendicularly to the bottom surface of the cleaning tank, but is not necessarily limited to this. It partitions the cleaning tank into multiple stages, thereby dividing the cleaning tank 1 into smaller areas, and each divided area It is sufficient if the cleaning liquid can be stored therein. There is an upper partition plate 6 above the lower partition plate 5. It is necessary that the upper partition plate 6 has a space between it and the lower partition plate 5 that allows the object to be cleaned 2 to pass linearly into the cleaning tank. That is, by installing the object to be cleaned so that it does not come into contact with the upper end of the lower partition plate and the lower end of the upper partition plate, the object to be cleaned may be damaged or cut as the running speed increases. avoid doing so. This gap is determined depending on the thickness of the object to be cleaned, but is preferably 1 to 100 Yanagi. Next, the lower end of the upper partition plate 6 is located closer to the entrance of the object to be cleaned than the upper end of the lower partition plate 5, that is, on the left side in FIG. It is important to incline toward the outlet side of the object to be cleaned, that is, to the right in FIG.

Although the reason for this is not certain, it is presumed as follows.

That is, when the lower partition plate 5 and the upper partition plate 6 are installed as described above, the cleaning liquid is stored one after another in the area divided by this one partition plate, and overflows from there and flows. As the object to be cleaned passes through, a state is created in which the cleaning liquid is dammed up by the object to be cleaned in each area, and the object to be cleaned becomes submerged in the cleaning liquid. the result,
The cleaning liquid passes between the lower partition plate 5 and the upper partition plate 6, and flows from the underside of the object to be cleaned, through it, to the upper side thereof, and further through there, to the lower side, and flows into the next area. . Therefore, the cleaning effect becomes extremely high. At this time, the upper partition plate 6
This functions to cause the cleaning liquid to flow from the upper side of the object to be cleaned, through it, and to the lower side, and the installation position of the upper partition plate 6 relative to the lower partition plate 5 is moved to the right side. If the cleaning effect is lowered or tilted in the opposite direction, the cleaning effect will be reduced. How far the lower end of the upper partition plate 6 should be positioned toward the inlet side of the object to be cleaned with respect to the upper end of the lower partition plate 5, and furthermore how much it should be inclined towards the outlet side, depends on the size of the object to be cleaned. The optimum conditions differ depending on the speed, running speed, amount of cleaning liquid, etc., but normally the former is preferably 1 to 20 ratios, preferably 1 to 100 ratios, and the latter is 1 to 80 ratios.
degree, preferably 1 degree to 45 degrees.

Note that FIG. 1 shows a guide roller 7 for the object to be cleaned and a leg portion 8 that supports the cleaning device.

FIG. 1 will be explained in more detail using FIGS. 2 and 3.

FIG. 2 shows the upper partition plate 6 in the countercurrent cleaning device of the present invention.
and the positions of the lower partition plate 5 and the cleaning tank 1 are shown. a indicates the angle of inclination of the cleaning tank 1 from the horizontal plane. Further, 82 indicates the angle between the center lines of the upper partition plate 6 and the lower partition plate 5 in their side cross sections. Q' indicates the gap formed by the upper partition plate 6 and the lower partition plate 5 through which the object to be cleaned can pass. Although FIGS. 1 and 2 show an example in which the upper partition plate 6 and the lower partition plate 5 are paired, they do not necessarily have to be paired. For example, for the lower partition plate 5, The upper partition plate 6 may be arranged every other time.

Moreover, FIG. 3 is a schematic diagram showing an example of a method of fixing the upper partition plate, and FIG. 3A shows a side view, and FIG. 3B shows a front view.

In FIG. 3, there is an upper partition plate fixing rod 9 that is integrated with the upper partition plate 6, and the upper partition plate angle adjusting port 10 can be adjusted by tightening the upper partition plate fixing rib 9.
This is an adjustment bolt for defining the angle 82 of .

The height of the upper partition plate 6 is such that it is integrated with the upper partition plate 6, the upper partition plate fixing rod 9, the upper partition plate angle adjustment bolt 10, and the upper partition plate bolt fixing accessory 12 to form the upper partition slope part. Upper partition plate height (gap Q) adjustment bolt 11
Adjust by.

It is also attached to the cleaning tank 1l, and the upper partition plate parts 6, 9,
The receiving part 13 of the upper partition plate z bolt fixing accessory 12 for fixing 10, 11, and 12 is shown. The angle 8 and gap of the upper partition plate 6 can be adjusted depending on the size of the object to be cleaned, the running speed, the amount of cleaning liquid, etc., so that the countercurrent flow of the present invention can be applied to a wide variety of objects to be cleaned. It can be cleaned using cleaning equipment. For this purpose, it is preferable to use a device as shown in FIG. 3, but the present invention is not limited thereto. Next, the effects of the countercurrent cleaning device of the present invention will be explained.

In the cleaning apparatus of the present invention, the object 2 to be cleaned travels in a straight line in the cleaning tank, and there is no squeezing by a conventional low-hoo or meandering thereof, so that there is no damage to the object. This is especially important when the object to be cleaned is textiles.
There are two major advantages when increasing the traveling speed for high-speed cleaning. Further, since it takes a straight running form during washing, the individual single fibers constituting the fiber east are not intertwined, so that the fiber east can be obtained without any disturbance. This is a great advantage when the fibers are used in an open twilled manner, and it is equally advantageous when the fibers are passed through a normal spinning process.

Next, the cleaning device of the present invention is suitable for cleaning objects to be cleaned that travel at high speed.

However, when the object to be cleaned is washed by running at high speed, an accompanying flow is generated in the object to be washed, and the cleaning flow is reversed in the direction of movement of the object, making it impossible to wash the object. It is possible to prevent this accompanying flow by squeezing the object with a roller, but squeezing the object being washed at high speed with a roller will cause extremely large damage, and in the case of the above-mentioned Senihigashi, this is a fatal defect. becomes. In contrast, the apparatus of the present invention can prevent the accompanying flow without directly contacting the object to be cleaned. That is,
By adjusting the gap between the lower partition plate 5 and the upper partition plate 6, the accompanying flow is prevented, and by slanting the upper partition plate 6 toward the outlet side of the object to be cleaned, the accompanying flow is prevented more effectively. It is possible to destroy the boundary layer between the two and improve the cleaning effect. Further, since the lower partition plate 5 and the upper partition plate 6 allow the flow of the cleaning liquid to repeatedly pass through the object to be cleaned, the object can be cleaned without damaging it.

Example 1 95% by weight acrylonitrile and 5% methyl acrylate
An acrylic polymer consisting of 15% by weight was dissolved in 7% by weight nitric acid to obtain a 15% by weight spinning stock solution.

This stock solution was wet-spun in a coagulation bath consisting of 3% by weight nitric acid using a spinning nozzle with 10,000 circular cross-section paper holes on the 0.12 side, and wound at a coagulation bath winding speed of 30 machines/min. I obtained a coagulated thread with a total denier of 250,000 denier. Next, the angle between the upper and lower partition plates existing inside the 10 skins in the cleaning tank is 20 degrees, the distance is 20 ribs, the total length of the lower partition plates is 20 skins, and the total length is 11 skins (effective bond length 10 skins).
Using a washing tank tilted at 10 degrees, the amount of water used for washing is 2 forces/hour.
The coagulated yarn east (containing 300% owf of 30% by weight nitric acid aqueous solution) was wound up from the coagulated scale at

) was passed through the washing tank at a speed of 30 m/min, and 0.1% of
The nitric acid concentration was The nitric acid concentration inside and outside the obtained tow was in the range of 0.1±0.02% owf. Further, the opening state was good, and there was no yarn damage or yarn breakage inside or outside of the arbitrarily sampled tow.

[Brief explanation of the drawing]

1 to 3 show a countercurrent cleaning device of the present invention, and FIG. 1 is a side view of the device. FIG. 2 shows the positions of the upper partition plate 6, the lower partition plate 5, and the cleaning tank 1. FIG. 3 is a schematic view showing one example of a method of fixing the upper partition plate, with A being a side view and B being a front view. 1: Cleaning tank, 2: Object to be cleaned, 2: Cleaning liquid inlet pipe, 4: Cleaning liquid discharge pipe, 5: Lower partition plate, 6: Upper part partition plate, 7: Guide low-fu, 8: Cleaning tank leg, 9 : Upper partition plate fixing rod, 1
0: Bolt for adjusting upper partition plate angle, 11: Bolt for adjusting upper partition plate height (gap Q), 12: Accessories for fixing upper partition plate bolt, 13: 12 receiving parts of cleaning tank, a,: Cleaning tank 82: Angle between the upper and lower partition plates, Q: Gap between the upper and lower partition plates. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. A lower partition plate that has an inclined cleaning tank and partitions the cleaning tank into multiple stages in the direction of movement of the objects to be cleaned, and the object to be cleaned can pass above the lower partition plate. In a countercurrent cleaning device in which an upper partition plate and an upper partition plate are provided in the cleaning tank with a gap, the lower end of the upper partition plate is located closer to the inlet of the object to be cleaned than the upper end of the lower partition plate, and the upper A countercurrent cleaning device characterized in that a partition plate is inclined toward an outlet side of the object to be cleaned with respect to the lower partition plate. 2. The countercurrent cleaning device according to claim 1, wherein the upper partition plate is inclined at an angle of 1 to 45 degrees toward the outlet of the object to be cleaned with respect to the lower partition plate. 3. The countercurrent cleaning device according to claim 1, wherein the gap between the upper partition plate and the lower partition plate is 1 to 100 mm.