JPS5942098B2 - Method for completely digesting treated liquid in a high-pressure steamer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for completely digesting the liquid in a liquid tank arranged in a steamer can so as not to waste it in the treatment of fabric using a high-pressure steamer.

Industrially produced long fabrics are continuously processed, for example by pre-treatment,
Alternatively, as a conventional dyeing method, a treatment method using a reaction chamber such as a purple oven or a high-pressure steamer has been proposed. At present, the caustic solution during processing and the dye solution during dyeing processing are supplied continuously or intermittently, and at the same time as this supply, the processing solution that overflows from the solution tank is sequentially discharged. Met.

In other words, in the past, the treated effluent discharged from the reaction chamber was not completely digested, so disposing of this treated effluent was wasteful or caused pollution, and also went against resource conservation. .

The present invention has been made in view of the above, and the active ingredients of the treatment liquid supplied into the thermal reaction chamber of the fabric, that is, the steamer can, are completely adsorbed onto the fabric and digested, and the residual liquid from the digestion is transferred to the outside of the steamer can. The aim is to eliminate wastage of processing liquid components, which in turn helps save resources, eliminates wastewater pollution, and improves economic efficiency by eliminating waste of processing liquid.

The present invention will be explained in detail below based on embodiments shown in the drawings.

Reference numeral 1 denotes a steamer can body for subjecting knitted fabrics to wet heat treatment under high pressure and moist heat, and the steamer can body 1 has an inlet side sealing mechanism 4 and an outlet side sealing mechanism 4 at a fabric inlet 2 and a fabric outlet 3, respectively. A sealing mechanism 5 is provided.

These sealing mechanisms allow the introduction of the fabric while retaining the high humidity and heat inside the high pressure steamer can body 1.

Any structure may be used as long as the structure allows the introduction, but in this embodiment, the introduction-side sealing mechanism 4 includes a pair of sealing rubber rolls 41 that are pressed against each other.

The other outlet-side sealing mechanism 5 has a pair of sealing rubber rolls 50 pressed against each other, and an annealing tank 5□ which also serves as a liquid sealing tank and is provided on the outlet port 3 side of the sealing rubber rolls. Reference numeral 26 denotes a group of guide rolls for transporting the fabric disposed inside the high-pressure steamer can body 1, and these guide roll groups 6 are arranged in two stages, upper and lower, in order to transfer the fabric in an up-and-down meandering manner. A tension adjustment roll 7 is about to be placed at a suitable location in the lower group.

Further, on the inner bottom surface of the approximately front half of the steamer can body 1, a plurality of liquid application tanks 10 are arranged at predetermined intervals and at different heights for re-impregnating the fabric 8 guided and transferred by the guide rolls 6 with the treatment liquid. The processing liquid in the auxiliary tank 9 provided outside the steamer can body 1 is pumped into the uppermost liquid application tank by a pump 11 in each liquid application tank 10. 10, and then the processing liquid that overflows from the uppermost liquid application tank is transferred to the lower liquid application tank ＼
It will be supplied in stages.

Reference numeral 12 denotes a plurality of washing tanks installed at the bottom of the substantially rear half of the steamer can body 1, and arranged in stages so that the difference in height increases successively in the direction of transport of the fabric. The hot water overflowing from the slow cooling tank 52 is supplied into the uppermost washing tank 12 through the pipe 16, and then the hot water overflowing from the uppermost washing tank is sequentially supplied to the lower washing tank 12 in stages. It is now possible to do so.

Reference numeral 13 designates a treatment liquid circulation pipe that communicates the liquid tank 9 with the liquid application tank 10 at the lowest stage, 14 a drainage pipe, and 15 a water supply pipe.

Next, to describe its operation, first, after maintaining the steamer can at a predetermined level of moist heat, the pump 11 is driven, and the liquid tank 9
The processing liquid inside is supplied to the uppermost liquid application tank 10, and the processing liquid overflowing from this liquid application tank is sequentially transferred to the upper liquid application tank 10.

If water is continuously supplied from the water supply pipe 15 into the slow cooling tank 5□, water overflowing from the slow cooling tank 52 will flow into each washing tank 12 one after another.

Therefore, if the guide roll 6 is driven to move the fabric 8, the fabric 8 fed into the steamer can body 1 will be meandered by the guide roll 6, and will be impregnated with the processing liquid in the bleaching liquid application tank 10. Steaming when drawn out from the application tank 10 is repeated alternately.

As a result, it goes without saying that the treatment liquid is uniformly and sufficiently impregnated over the entire surface of the fabric 8,
The treatment liquid supplied into the uppermost liquid application tank 10 by the pump 11 is repeatedly contacted with the fabric while it is transferred to each of the plurality of staged liquid application tanks 10-\, so that the components contained in the treatment liquid are removed. Most of them are absorbed by force.

That is, the treatment liquid supplied into the steamer can body 1 is supplied stepwise into a plurality of liquid application tanks arranged in stages inside the steamer can body, and the fabric is repeatedly immersed in the meantime, so that the treatment liquid is placed at the end. The concentration of the liquid in the liquid application tank becomes thinner and the drug (component)
The complete digestion of is achieved.

Incidentally, the purpose of arranging the plurality of washing tanks in stages is to enhance the washing effect, and has no direct relation to the complete digestion of the processing liquid of the present invention.

As described above, the present invention includes a fabric inlet and a fabric outlet for continuously introducing and extracting fabric into a steamer can body, and the fabric inlet includes an inlet-side sealing mechanism provided with a liquid sealing tank, and a fabric In a steamer having an outlet side sealing mechanism connected to an outlet port provided with a slow cooling tank, a plurality of devices are provided inside the steamer can for intermittently and repeatedly immersing the fabric to be transferred inside the steamer can in a liquid. The liquid application tanks in the steamer can are arranged in stages so as to descend sequentially in the fabric transport direction, and the liquid overflowing from the upper liquid application tank is disposed in stages. The fabric is formed so as to be sequentially supplied into the lower liquid applying tank, and the fabric fed into the steamer can is immersed and transferred sequentially from the upper liquid applying tank to the lower liquid applying tank. Since this is a method of completely digesting the treated liquid in a high-pressure steamer, it is effective in eliminating wasted chemicals and pollution caused by waste liquid.

Further, impurities separated from the fabric tend to adhere to the surface of each guide roll 60 in the steamer can 1, but the guide rolls 6 are immersed in liquid tanks 10 and 12 separated from each other in the steamer can. Since the liquid-impregnated fabric is transferred in contact with the guide roll 6, the surface of each guide roll is constantly moistened. Therefore, the scale on the guide roll surface is removed by the contact force of the fabric, and the scale on each guide roll is kept moist. The roll surface is constantly cleaned and has the effect of preventing scale from adhering to it.

[Brief explanation of the drawing]

The drawing is an explanatory cross-sectional view showing an example of an apparatus used to carry out the present invention. 1... Steamer can body, 2... Fabric inlet, 3...
Fabric outlet, 4... Inlet side seal mechanism, 5... Outlet side seal mechanism, 6... Guide roll, 7... Tension adjustment roll, 8... Fabric, 9... Liquid tank, 10・
...Liquid application tank, 11...Pump, 12...Washing tank,
13... Processing liquid circulation pipe, 14... Drainage pipe,
15...Water supply pipe, 16...Pipe.

Claims (1)

[Claims] 1 The steamer body is equipped with a fabric inlet and a fabric outlet for continuously introducing and extracting fabric, and the fabric inlet is equipped with an inlet-side sealing mechanism with a liquid sealing tank, and the fabric outlet is equipped with a slow cooling mechanism. In a steamer connected to an outlet-side sealing mechanism provided with a tank, a plurality of liquid application tanks are provided inside the steamer can for intermittently and repeatedly immersing the fabric to be transferred inside the steamer can in the liquid. The liquid application tanks in the steamer can are arranged in stages so as to descend sequentially in the fabric transport direction, and the liquid overflowing from the upper liquid application tank is transferred to the lower corrugated upper tank. A treatment liquid in a high-pressure steamer is formed so that the fabric is sequentially supplied into the steamer can, and the fabric fed into the steamer can is immersed and transferred sequentially from an upper liquid application tank to a lower liquid application tank. Complete digestion method.