JPH0154103B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a high-temperature liquid injection nozzle that is advantageous for continuous wet heat treatment of fabrics.

For example, conventional methods of continuously scouring, bleaching, dyeing, resin processing, weight reduction processing, etc. on long lengths of fabric include
Although the fabric can be inserted continuously, a steamer can that can maintain high temperature and high humidity, that is, a reactor, is used to perform continuous moist heat treatment of the fabric at high temperature and high humidity. Through heat treatment, the chemical solution is reacted on the fabric to perform the above-mentioned scouring, bleaching, dyeing,
It has been proposed to continuously carry out targeted treatments such as resin processing and weight reduction processing.

However, in such a continuous heat-and-moisture treatment method for fabrics, it is necessary to maintain the inside of the steamer can in an atmosphere of high temperature and high humidity prior to the heat-and-moisture treatment. Since it takes a long time to reach high humidity, it takes a long time to prepare the fabric for operation, and furthermore, a large amount of thermal energy is expended until the inside of the steamer can reaches the specified temperature and humidity. It was something that would be done.

In addition, the fabric can be continuously introduced and taken out through the fabric inlet and outlet of the steamer can, but if the fabric is equipped with a sealing mechanism to maintain high temperature and high humidity inside the steamer can, , the overall structure of the steamer can becomes complicated,
Furthermore, along with the demand for a pressure-resistant structure and a heat-resistant structure, the size of the device has increased, resulting in problems such as an increase in the cost of the entire device.

The present invention has been made in view of the above, and the main purpose of the present invention is to directly spray a high temperature, high humidity gas onto the fabric to be processed using a jetting force from a nozzle, thereby speeding up the moist heat treatment operation. The purpose of this project is to provide a high-temperature liquid injection nozzle that can perform highly economical moist heat treatment by simplifying the structure of the steamer can, reducing waste of thermal energy and chemical liquid, and reducing waste of heat energy and chemicals. be.

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

Reference numeral 1 denotes a pressure- and heat-resistant liquid injection pipe having a large number of liquid injection holes 2 drilled in the generatrix direction, and a liquid supply pipe 4 is connected to one end of this liquid injection pipe via a valve 3. , and a drain pipe 6 is connected to the other end of the pipe via a valve 5.
Reference numeral 7 denotes a pressure pipe into which the liquid injection pipe 1 is inserted and both ends of which are closed. Sufficient clearance is maintained. Furthermore, a slit 8 in the generatrix direction is formed in the pressure pipe 7 at a position corresponding to the liquid injection hole 2 of the liquid injection pipe 1. A gas-liquid injection plate 9 made of a porous plate such as a foamed metal plate or a ceramic plate, or a perforated plate with a large number of pores bored at desired intervals is mounted on the slit 8, and the pressure pipe 7 A pressurized steam supply pipe 10 is connected to.

The above is the configuration of this embodiment.Next, to describe its operation, the valve 3 is opened, and pressurized liquid from the liquid supply pipe 4, such as caustic liquid, is supplied during pretreatment, and the dyeing liquid is supplied during dyeing. When the pressurized liquid is supplied into the liquid injection pipe 1, this pressurized liquid is ejected from the liquid injection hole 2 to the outside via the gas-liquid injection plate 9. At the same time, for example, 3 kg/
cm ² and pressurized high-temperature steam of approximately 140° C. is supplied, this pressurized high-temperature steam is mixed with the pressurized liquid and jetted from the gas-liquid jetting plate 9, and moves near the gas-liquid jetting plate 9. It is applied to and impregnated into the fabric 11.

As described above, according to this device, by supplying pressurized high-temperature steam of, for example, around 140°C into the pressure pipe 7 from the steam supply pipe 10, the liquid injection pipe 1 installed inside the pressure pipe 7 is heated. Even if the liquid is rapidly heated and injected, and the high-temperature steam of around 140°C in the pressure pipe 7 causes a temperature drop when it is applied to the fabric under normal pressure via the gas-liquid injection plate 9, Since high-temperature steam of 100°C or more mixed with the above-mentioned pressurized liquid is blown onto the fabric, the application and impregnation of the high-temperature heating liquid to the fabric and its chemical reaction are effectively carried out, for example, before continuous transfer. Treatments such as treatment, weight reduction, and dyeing can be effectively performed.

As described above, the present invention includes a liquid injection pipe 1 provided with a liquid injection hole 2 in the generatrix direction for injecting a chemical liquid, and a liquid injection pipe that is loosely inserted and held inside.
A gas-liquid injection plate 9 made of a foamed metal plate, a ceramic plate, or a plate with perforated holes is provided in correspondence with the liquid injection hole, which does not interfere with the injection of the chemical liquid from the liquid injection hole.
Moreover, since it is a high-temperature liquid injection nozzle consisting of a pressure pipe 7 connected to a high-pressure steam supply pipe 10, the desired processing liquid is injected from the liquid injection hole 2, and at the same time high-temperature and high-pressure steam is ejected from the pressure pipe 7. By spraying, the spray plate 9 sprays a high-temperature spray liquid of 100°C or higher, which is a sufficient and uniform mixture of the treatment liquid and high-temperature, high-pressure steam, onto the fabric. , the liquid treatment of the fabric under normal pressure can be carried out effectively and reliably. In addition, the amount of chemical solution and humidity applied can be set to an appropriate amount by adjusting the amount of spray from the nozzle, so it is possible to economically process liquids with good quality without wasting the liquid or insufficiency of the amount of liquid applied. can. Furthermore, by using the nozzle of the present invention, it is possible to apply a fixed amount of liquid without using a squeezing roll, so it is possible to uniformly process the liquid over the entire surface of the fabric without causing migration or medium-diluted, medium-concentrated liquid. effective.

[Brief explanation of drawings]

The drawings all show embodiments of the nozzle according to the present invention, and FIG. 1 is a partially cutaway side view thereof, and FIG. 2 is a sectional view taken along line A--A. 1...Liquid injection pipe, 2...Liquid injection hole, 3...
Valve, 4...Liquid supply pipe, 5...Valve, 6...
Drain pipe, 7... Pressure pipe, 8... Slit, 9...
Gas-liquid injection plate, 10... Steam supply pipe, 11... Fabric.

Claims (1)

[Claims] 1 A liquid injection pipe 1 provided with a liquid injection hole 2 in the generatrix direction for injecting a chemical liquid, and this liquid injection pipe is loosely inserted and held inside, and a chemical liquid is ejected from the liquid injection hole corresponding to the liquid injection hole. It is characterized by being provided with a gas-liquid injection plate 9 made of a foamed metal plate, a ceramic plate, or a plate with perforated holes that does not hinder the injection, and further comprising a pressure pipe 7 to which a high-pressure steam supply pipe 10 is connected. High temperature liquid injection nozzle.