JP6438061B2 - Device and method for applying distilled liquor to a material web - Google Patents

Description

The present invention relates to a device for impinging distilled liquor on a material web, the device comprising a wetting portion, an application portion, a squeezing portion, and a spirit collection assembly.
The present invention also relates to a method for allowing distilled liquor to act on a material web, in which the material web is wetted in the wetting part, the distilled liquor is applied in the application part, and the material web is applied in the drawing part. Squeezed and distilled liquor is collected.

In the following, the invention is described in relation to a skein to which a sizing agent is applied. In order to achieve this purpose, the skeins may be drawn from the warp beam, for example so that the individual threads are arranged side by side to form a flat material.
The material web is first wetted. Water is usually used for wetting. Wetting serves to immerse the material web in the liquid. Wetting is also intended to allow water to penetrate into the core portion of the yarn. In this case, the consumption of distilled liquor is somewhat reduced. This is because by allowing water to penetrate into the core portion of the yarn, it becomes possible to accumulate distilled liquor only on the surface of the material web.

The wet material web then passes through the applicator. In the applicator, distilled liquor is applied to the wet material web. This application is usually performed using a predetermined excess amount. Thus, the distilled liquor drips from the material web, but is prepared in advance to be collected at the applicator. After application of distilled liquor , the material web is squeezed. The throttling is performed using a predetermined pressure. By squeezing, in addition to the distilled liquor , part of the water used for wetting is squeezed out of the material web. Distilled liquor squeezed with water is also collected. The spirits and water, is fed back to the coating unit collects and spirits that is collected in the coating unit.

However, in this method has the disadvantage that the water will dilute the liquor get mixed than ever and spirits. To compensate for this diluting effect, the amount of distilled liquor per unit length of the material web must continue to be applied. Nevertheless, this does not guarantee that the application of distilled liquor is reasonably constant.
The object of the present invention is to make the quality of the application of distilled liquor constant.

For type of device described in the introduction, this object is achieved liquor collection assembly is achieved by having a second collection tank assigned to the diaphragm portion first collection tank assigned to the application unit.
In this way, two different parts of distilled spirits, and the spirits of the narrowed portion in particular is diluted with distilled liquor from most undiluted coating part is collected. In this way, spirits from the throttle unit being diluted spirits applied in the coating unit it is possible to prevent that by diluting with time. More precisely, it is possible to achieve a nearly constant quality of the distilled liquor application.

Here, the second collection tank is preferably connected to the reconcentration device. Distilled liquor diluted with water is collected in a second collection tank. Water may be removed in the reconcentrator so that distilled liquor having the desired concentration is again available at the outlet of the reconcentrator. This reconcentrated distilled liquor may then be used again.
Preferably, the re-concentration device has a heat source. Reconcentration is performed by evaporating the water.

Preferably, the reconcentration device is connected to a distilled liquor preparation device. This type of distilled liquor preparation apparatus has a mixer. Also, this type of distilled liquor preparation apparatus is often provided with a temperature control device for maintaining the distilled liquor at a predetermined temperature. Some spirits coated in spirits coating unit is always carried away by the material web, that is, "consumed", spirits preparing apparatus continuously or discontinuously producing new spirits, Must be supplied. For this production or supply, the reconcentrated distilled liquor is fed so that it does not require excessive setup to obtain reconcentration accuracy.

Preferably, the 1st collection tank is connected even to the application part. In this way, it is possible to return distilled liquor that has not been taken in by the material web in the application section directly to the application section, thereby improving the handling of distilled liquor .
Preferably, the applicator has a first applicator on one side of the material web and a second applicator on the other side of the material web. In this way it is possible to act quickly on the material web from all sides. Distilled liquor does not necessarily have to penetrate the entire material web.

Preferably, at least one of the two applicators is formed between two rollers to feed distilled liquor into a nip where the material web is guided, the compressive force of the nip being the compressive force of the squeeze Is lower than. If spirits is fed into the nip, the distilled liquor is fed into the gap of the V-shape formed between one of the rollers of the roller forming the material web and nip. This results in good wetting of the material web by distilled liquor as the material web is guided through the nip. This is because the distilled liquor is clamped between the material web and one of the above-mentioned rollers so that a small compressive force is further applied to the other roller forming the nip. Nevertheless, the prevailing pressure at this time is not so high as to squeeze out the water from the material web.

The object in the case of the method of the type described at the outset is achieved by collecting the distilled liquor from the application part separately from the distilled liquor from the squeeze part.
Diluted from the squeeze by separating the liquor from the substantially undiluted applicator and the distilled liquor from the dilute squeeze, as described above in connection with the device spirits is cause to further diluted whole liquor, it is possible to avoid the risk arises that excessively lowered with the passage of the concentration of liquor applied time in a coating unit.

Preferably, the distilled liquor from the squeezed part is reconcentrated. In this case, the reconcentrated part of the distilled liquor may then be used again. This is an advantage from an economic and environmental point of view.
Preferably, the re-concentrated distilled liquor is sent to a distilled liquor preparation unit. In this way, it is possible to accept variations in concentration during reconcentration.

Preferably, the distilled liquor collected from the application unit is returned to the application unit. Thus, the circulation of distilled liquor is achieved in this way. As is obvious, fresh distilled liquor must be fed continuously or discontinuously into this circulatory system. This is because part of the distilled liquor is carried away, ie consumed, by the material web.
Preferably, distilled liquor is applied to both sides of the material web. In this way, it is possible to easily and quickly realize the application of distilled liquor on both sides of the web in the desired manner.

In the following, the invention is described using preferred exemplary embodiments with reference to the drawings.
1 is a schematic diagram showing a device for causing distilled liquor to act on a material web. FIG.

A device 1 for allowing distilled liquor to act on a material web has a wetting part 3 for wetting the material web 2 with water 4. Here, the water 4 is fed from a feeding device 5 into a V-shaped gap 6 between the two rollers 7, 8. In this embodiment, the material web 2 which is a skein yarn in which a plurality of yarns are arranged side by side is transferred through a nip 9 between two rollers 7 and 8. Here, the material web 2 is soaked and wetted in water. Water that passes through the nip 9 but is not absorbed by the material web 2 is collected in the tank 10.

The material web 2 passes through a further nip 12 formed between a roller 8 and a further roller 13 defining a first nip 9. Next, the material web 2 is guided to the deflection roller 14 and reaches the application unit 15.
In the application unit 15, the material web 2 passes through a nip 16 formed between the first roller 17 and the second roller 18. The distilled liquor applicator 19 feeds the distilled liquor 20 into the nip 16.

The material web 2 that has passed through the first nip 16 passes through a second nip 21 formed between the second roller 18 and the third roller 22. The second distilled liquor applicator 23 feeds the distilled liquor 24 into the second nip.
The first spirit applicator 19 and the second spirit applicator 23 are both formed, for example, as a row of nozzles and nip a larger amount of spirit 20, 20 than the material web 2 can absorb. 16 and 21. This excess distilled liquor , indicated by dashed arrows 25, 26, is collected in the first collection tank 27 and may be further fed from the first collection tank 27 into the storage container 28. Good. The collected distilled liquor may be returned from the storage container 28 to the application unit 15 using the pump 29.

The material web 2 is further transferred to the second roller 18 and reaches the squeezing part 30. In the throttle unit 30, the material web 2 is applied with a predetermined pressure at a nip 31 formed between the second roller 18 and the fourth roller 33. In addition to being able to remove excess spirits from the material web 2, this pressure is also high enough that the water absorbed in the material web 2 at the wetting section 3 is also squeezed out together. The squeezed liquid is labeled with an arrow 34 and contains distilled liquor and water, and the squeezed liquid is collected in the second collection tank 35. The second collection tank 35 is separated from the first collection tank 27 so that the undiluted distilled liquor and the diluted distilled liquor can be handled separately.

The second collection tank 35 is connected to a reconcentration device 36. By evaporating the water that this is included in the re-concentrator 36 in liquor 37, for example it is diluted by heating the liquor 37 which is diluted to raise again the concentration of liquor 37 being diluted It is like that.
Pump 38, for example sends a distilled liquor, which is reconcentrated into the liquor preparation unit 39 having a mixer 40 and the heating element 41. In the distilled spirit preparation device 39, new distilled spirits are produced continuously or discontinuously. The produced distilled liquor is pumped to the storage container 28 and sent from the storage container 28 to the coating unit 15.

Some of the liquor may be circulated in the liquor preparation unit 39. To this end, recirculation line 42 for feeding back from the outlet 43 to the liquor preparation apparatus 39 spirits preparation device is provided.
The device 1 is adapted to operate as follows: the material web 2 is fed to the device 1 and wetted in the wetting part 3. Thereafter, the material web passes through an application section 15 that applies distilled liquors 20 and 24 to both sides of the material web 2. The portion of the distilled liquor that cannot be absorbed and transported by the material web 2 is collected in the first collection tank 27 and sent from the first collection tank 27 to the storage container 28.

In the nips 16 and 21 of the application unit 15, the distilled liquors 20 and 24 are reliably pressed into the material web 2 at a predetermined pressure. However, this pressure is significantly lower than the pressure at the nip 31 of the throttle 30. The pressure at the nips 16, 21 is not sufficient to squeeze out water from the material web.
Next, in the squeezing part 30, a high pressure is applied to the material web 2 so as to squeeze the mixture of distilled liquor and water (arrow 34). This mixture is collected in the second collection tank 35, re-concentrated in the re-concentration device 36, and sent to the distilled spirit preparation device 39.

Since the undiluted distilled spirits 25 and 26 and the diluted distilled spirit 34 are separately held, it is possible to prevent the distilled liquor from being further diluted over time by the squeezed water. It is possible. More precisely, the concentration of distilled liquor can be kept constant, so that the application of distilled liquor can be kept constant over a relatively long period of time.

Claims (10)

A device (1) for causing distilled liquor (20, 24) to act on a material web (2) comprising a wetting part (3), an application part (15), a squeezing part (30), and a distilled liquor collection In a device (1) comprising an assembly (27, 35),
The distilled liquor collection assembly (27, 35) includes a first collection tank (27) disposed in the application section (15) and a second collection tank (35 disposed in the throttle section (30). ) and has a,
Device, characterized in that the second collection tank (35) is connected to a reconcentrator (36) . The device of claim 1 wherein the reconcentration device (36) is characterized in that it has a heat source. 3. Device according to claim 1 or 2 , characterized in that the reconcentration device (36) is connected to a distilled liquor preparation device (35). A device according to any one of claims 1 to 3, characterized in that the first collecting tank (27) is cooperative with the coating portion (15). The coating part (15) has a first coating device (19) on one side of the material web (2), and a second coating device (23) on the other side of the material web (2). a device according to any of claims 1 to 4, characterized in. At least one of the first applicator and the second applicator (19, 23) is formed between two rollers (17, 18; 18, 22) and the nip (16, 21) through which the material web passes. The device according to claim 5 , wherein distilled liquor is fed into the nip, and the compressive force at the nip (16, 21) is lower than the compressive force at the throttle (30). A method for causing distilled liquor (20, 24) to act on a material web (2), wherein the material web (2) is wetted in a wetting part (3) and the distilled liquor is applied in an application part (15). In which the material web (2) is squeezed in the squeeze section (30) and distilled liquor is collected,
Distilled liquor from the application unit (15) is collected separately from distilled liquor from the squeezing unit (30),
Distilled liquor from the squeezing part (30) is reconcentrated . 8. The method of claim 7 , wherein the re-concentrated distilled liquor is fed to a distilled liquor preparation unit. The method according to claim 7 or 8 , characterized in that distilled liquor collected from the application part (15) is returned to the application part (15). 10. A method according to any one of claims 7 to 9 , characterized in that the distilled liquor is applied to both sides of the material web (2).

Images