CN109208207B - Device and process for reducing dyeing color difference - Google Patents

Abstract

The invention relates to the field of printing and dyeing processes, in particular to a device and a process for reducing dyeing chromatic aberration, which can be used for rapidly reducing chromatic aberration of dyes in a plurality of dye vats. The utility model provides a reduce device of dyeing colour difference, the device includes a plurality of dye vats and trunk line, the bottom of a plurality of dye vats all sets up drain line, and the side or the top of dye vat set up the inlet channel, all drain lines are connected to trunk line one end, and all inlet channels are connected to the other end, the trunk line sets up the main circulating pump. A process for reducing dyeing chromatic aberration uses a parallel mode to circulate dyes in a plurality of dye vats so as to reduce the dyeing chromatic aberration.

Description

Device and process for reducing dyeing color difference

Technical Field

The invention relates to the field of printing and dyeing processes, in particular to a device and a process for reducing dyeing color difference.

Background

In the process of dyeing yarns or fabrics, because the capacity of the same dye vat is limited, products in the same batch are dispersed into a plurality of different dye vats for dyeing, the final color of the dye is influenced by the concentration, the air pressure and the air temperature of the dye in the different dye vats, and the color difference of the products in the same batch is caused.

In order to overcome the color difference existing between different dye vats, a combined vat dyeing mode is provided. The dye vats are connected in series, so that dyes are mixed among different dye vats, and the color difference is reduced. However, most of the existing combined vats are two combined vats, and due to the serial structure of the combined vats, when the number of the dye vats is too large, the number of pipelines is increased sharply, and management is disordered; in addition, when the number of the dye vats is too large, the mixing speed of the dye is also reduced, and the color difference between the dye vats cannot be sufficiently controlled.

The Chinese invention patent with the patent application number of 02114716.7 discloses a method for dyeing by using combined vats, wherein the vats are connected in series, and the bottoms of the vats are sequentially connected through a pipeline. Although the color difference between the dye vats can be reduced by the scheme, when the number of the dye vats is large, the time for the dye to complete the whole cycle is long, and the efficiency is low.

Disclosure of Invention

The invention aims to provide a device and a process for reducing dyeing chromatic aberration, which can be used for rapidly reducing chromatic aberration of dyes in a plurality of dye vats.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a reduce device of dyeing colour difference, the device is including a plurality of dye vats on the trunk line side by side, the bottom of a plurality of dye vats all sets up the drain line, and the side or the top of dye vat set up the inlet conduit, all drain lines are connected to trunk line one end, and all inlet conduits are connected to the other end, the trunk line sets up the main circulating pump. With the parallelly connected setting of a plurality of dye vats, can realize the quick circulation of dyestuff, the dyestuff can circulate simultaneously between a plurality of dye vats in the short time, and it is faster to compare in series connection mode circulation speed, and the dyestuff in a plurality of dye vats gets into the trunk line simultaneously and mixes, then disperses into each dye vat simultaneously, more is applicable to the condition that the dye vat is a lot more.

Preferably, the drain conduit is provided with a secondary circulation pump. The auxiliary circulating pump improves the circulating efficiency and ensures that the flow velocity of each liquid discharge pipeline is approximately the same.

Preferably, the drain line is provided with a drain control valve. The drain control valve is used to close off the dye vat that is not needed.

Preferably, the dye vat is provided with a liquid level control device, the liquid inlet pipeline is provided with a liquid inlet control valve, and the liquid level control device is connected with the liquid inlet control valve. The liquid level control device can control the liquid level height in the dye vat, and because of the quantity and the angle of the dye vat, the speed of liquid inlet and liquid discharge is different, so that the dye in part of the dye vat is too much, and the dye in part of the dye vat is too little. When the liquid level in the dye vat is too high, the liquid inlet pipeline is closed, so that more dye flows into other dye vats, and the liquid level difference between the dye vats is reduced.

Preferably, the liquid level control device comprises a controller, and a high-level detector and a low-level detector which are arranged on the inner side of the dye vat, wherein the high-level detector is arranged above the low-level detector, the high-level detector and the low-level detector are both connected with the controller, the controller is connected with a liquid inlet control valve, and the high-level detector and the low-level detector are both liquid level sensors. The liquid level height can be limited to a certain range by two liquid level sensors instead of one value. If only one liquid level sensor is arranged, the liquid control valve is closed after the liquid level reaches, the liquid level can descend immediately at the moment because the liquid drainage pipeline still works, the liquid inlet control valve is opened immediately, the liquid level can rise immediately to cause the liquid inlet control valve to be closed, and although the liquid level can be accurately controlled, the liquid inlet control valve can be opened and closed frequently, and the service life is seriously influenced.

Preferably, the dye vat comprises a feeding hole, a feeding valve is arranged on the feeding hole, and the controller is connected with the feeding valve. The feed inlet is used for replenishing dye in the dye vat.

Preferably, the main pipe is provided with a mixing part, and mixing blades are arranged in the mixing part. The mixing part is used for accelerating the mixing of the dye.

A process for reducing dyeing color difference comprises the following steps:

a. adding dye into a dye vat required to be used;

b. opening a liquid discharge control valve, an auxiliary circulating pump, a liquid inlet control valve and a main circulating pump of a required dye vat;

c. the dye circulates among all the working dye vats, and the liquid level control device balances the amount of the dye in all the dye vats;

d. and putting the yarns or fabrics to be dyed after the dye circulation is finished.

The parallel connection mode is used for accelerating the circulation speed of the dye, the dye level control device is suitable for the arrangement mode of multiple dye vats, and the liquid level control device can ensure that the dye amount in each dye vat is approximately the same.

Preferably, in the step c, when the liquid level in the dye vat is higher than the high level detector, the liquid inlet control valve is closed, and when the liquid level in the dye vat is lower than the low level detector, the liquid inlet control valve is opened. The liquid level is controlled between the two sensors by means of two level sensors.

Preferably, in the step c, the controller monitors the opening time of each liquid inlet control valve, and when it is detected that one liquid inlet control valve is opened too long, the feed valves arranged in the same dye vat are opened to replenish the dye. Because the liquid level is controlled in a certain range, when the liquid inlet speed of one part of the dye vat is relatively high, the long-term liquid level of the other part of the dye vat is relatively low, namely the liquid inlet control valve is opened for a long time, and at the moment, the dye can be added into the dye vat by opening the feeding control valve.

The invention has the following beneficial effects:

1. the dye vats arranged in parallel can enable the dye to rapidly circulate so as to reduce the color difference among the dye vats;

2. the liquid level control device can stabilize the liquid level within a certain range and keep the dye amount in each dye vat approximately the same;

3. the amount of the dye fluctuates within a certain range, so that frequent opening and closing of the liquid inlet control valve are avoided, and the service life of the liquid inlet control valve is prolonged;

4. the feed inlet can be used for replenishing dye into the whole system or a certain dye vat, so that the liquid level in each dye vat is at the same height.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

description of reference numerals:

1-dye vat, 2-main pipeline, 3-drainage pipeline, 4-liquid inlet pipeline, 5-main circulating pump, 6-auxiliary circulating pump, 7-drainage control valve, 8-liquid inlet control valve, 9-controller, 10-high detector, 11-low detector, 12-feed inlet, 13-feed valve and 14-mixing part.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in FIG. 1, the apparatus for reducing dyeing color difference provided by the embodiment of the invention comprises a plurality of dye vats 1, wherein the plurality of dye vats 1 are connected in parallel through a main pipe 2. The bottom of each dye vat 1 is provided with a liquid discharge pipeline 3, the side surface or the top is provided with a liquid inlet pipeline 4, and all the liquid inlet pipelines 4 and the liquid discharge pipelines 3 are respectively connected with the two ends of the main pipeline 1. The main pipeline 1 is provided with a main circulating pump 5, the liquid drainage pipeline 3 is provided with an auxiliary circulating pump 6 and a liquid drainage control valve 7, and the liquid inlet pipeline 4 is provided with a liquid inlet control valve 8. Still include liquid level control device, liquid level control device includes controller 9 and sets up high level detector 10 and the low level detector 11 in dye vat 1 inboard, and high level detector 10 sets up in low level detector 11 top, and high level detector 10 is level sensor with low level detector 11 to be connected with controller 9, controller 9 is connected with into liquid control valve 8.

The dye vat 1 is further provided with a feeding hole 12, the feeding hole 12 is provided with a feeding valve 13, the feeding valve 13 is connected with the controller 9, the main pipeline 2 is provided with a mixing part 14, and mixing blades are arranged in the mixing part 14.

A process for reducing dyeing color difference comprises the following steps:

a. adding dye into a dye vat 1 to be used;

b. opening a liquid discharge control valve 7, an auxiliary circulating pump 5, a liquid inlet control valve 8 and a main circulating pump 5 of the required dye vat 1;

c. the dye circulates among all the working dye vats 1, and the liquid level control device balances the amount of the dye in all the dye vats;

d. and putting the yarns or fabrics to be dyed after the dye circulation is finished.

In step c, when the liquid level in the dye vat 1 is higher than the high level detector 10, the liquid inlet control valve 8 is closed, and when the liquid level in the dye vat 1 is lower than the low level detector 11, the liquid inlet control valve 8 is opened. The controller 9 monitors the time of opening of each liquid inlet control valve 8, and when detecting that a certain liquid inlet control valve 8 is opened too long, opens the feed valve 13 arranged in the same dye vat 1 to replenish dye.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (2)

1. An apparatus for reducing dyeing color difference, comprising: the device comprises a plurality of dye vats which are arranged on a main pipeline (2) in parallel, wherein liquid drainage pipelines (3) are arranged at the bottoms of the dye vats (1), liquid inlet pipelines (4) are arranged on the side surfaces or the tops of the dye vats (1), one end of the main pipeline (2) is connected with all the liquid drainage pipelines (3), the other end of the main pipeline is connected with all the liquid inlet pipelines (4), the main pipeline (2) is provided with a main circulating pump (5), the main pipeline (2) is provided with a mixing part (14), and mixing blades are arranged in the mixing part (14);

the liquid discharge pipeline (3) is provided with an auxiliary circulating pump (6);

the liquid drainage pipeline (3) is provided with a liquid drainage control valve (7);

the dye vat (1) is provided with a liquid level control device, the liquid inlet pipeline (4) is provided with a liquid inlet control valve (8), and the liquid level control device is connected with the liquid inlet control valve (8);

the liquid level control device comprises a controller (9), and a high-level detector (10) and a low-level detector (11) which are arranged on the inner side of the dye vat (1), wherein the high-level detector (10) is arranged above the low-level detector (11), the high-level detector (10) and the low-level detector (11) are both connected with the controller (9), the controller (9) is connected with a liquid inlet control valve, and the high-level detector (10) and the low-level detector (11) are both liquid level sensors;

dye vat (1) includes feed inlet (12), feed inlet (12) set up feed valve (13), and feed valve (13) are connected in controller (9).

2. A process for reducing dyeing color difference is characterized in that: the method comprises the following steps:

a. adding dye into a dye vat (1) required to be used;

b. opening a liquid discharge control valve (7), an auxiliary circulating pump (6), a liquid inlet control valve (8) and a main circulating pump (5) of the required dye vat (1);

c. the dye circulates among all the working dye vats (1), the liquid level control device balances the amount of the dye in all the dye vats (1), when the liquid level in the dye vats (1) is higher than a high-level detector (10), a liquid inlet control valve (8) is closed, when the liquid level in the dye vats (1) is lower than a low-level detector (11), the liquid inlet control valve (8) is opened, a controller (9) monitors the opening time of each liquid inlet control valve (8), and when the opening time of one liquid inlet control valve (8) is overlong, a feed valve (13) arranged in the same dye vat (1) is opened to supplement the dye;

d. and putting the yarns or fabrics to be dyed after the dye circulation is finished.

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