JPS5865041A - Discharge of waste water in water jet loom - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for discharging wastewater containing weft jet water (thus generated glue residue, scum, etc.) during weaving using a water jet loom.

Conventionally, weft jet water used for weaving in a water jet loom is temporarily stored in a storage tank after weft insertion is completed, and then discharged as waste water. Figure 1 shows a simplified side view of a basic storage tank etc. that has been used conventionally.
During operation of the water jet loom (not shown), a reduced pressure state is created in the storage tank η) by the operation of the pressure reducer (1), and the used weft jet water is discharged from the inlet (2) as wastewater containing impurities. -) and stored in the storage tank (4).

Next, when the water jet room stops, the operation of the pressure reducer (1) also stops, and the pressure inside the storage tank (Al becomes the same as the outside pressure). At the same time, the drain valve (3) opens and the waste water ( a) is discharged into a drainage channel (not shown). In this case, no particular problem occurs during short-term operation, but after about 4 hours, glue scum that has fallen off from the warp threads contained in the waste water (a) is discharged. Deposits of impurities (b) such as dirt, scum, or suspended solids contained in groundwater, tap water, river water, etc. used for economic reasons, occur at the bottom of the storage tank (body), and in this state, wastewater ( When IL) is discharged into the drainage canal, carcass deposits accumulate in the drainage canal, bacteria multiply within two weeks, and the waste eventually turns into gelatinous filth. As a result, the condition of the drainage canals gradually deteriorates and a strange odor begins to permeate the premises, necessitating periodic cleaning of the drainage canals. Therefore, we developed a sizing agent that would not cause the glue to come off due to friction between the warp threads and the starch threads during weaving.

In the case of melt-spun yarn, it is necessary to develop a highly cohesive oil agent that does not require a sizing agent, which imparts a high degree of cohesiveness to the yarn and enables weaving without heating or sizing, and to purify the sprayed water used. Although such efforts have been made, they have not been sufficiently effective.

The object of the present invention is to provide a method that can prevent accumulation of sediment in drainage channels such as those of 9 or more, and can achieve a sufficient drainage effect.

That is, it is characterized by aerating waste water containing glue residue, scum, etc. generated during weaving using a water jet roux in water in a depressurized storage tank, and discharging it as a suspended liquid. Now, the structure of the present invention will be explained in detail with reference to embodiments.

FIG. 2 is a simplified side view of an embodiment of a storage tank used in the method of the present invention. In other words, the inlet (2
) to the interior of the storage tank (a), an aeration pipe (4) is provided, and the aeration pipe (4) is located under the lower end of the pipe (4) (the color of the water surface of the stored wastewater (a) is always the same). It has a long length. In addition, an aW shielding plate (5) is attached to prevent splashes of wastewater 1) generated inside the storage tank due to aeration from entering the pressure reducing machine (1).

With the structure described above, when the Water Shelter A/-m starts operating, the pressure reducer (1) operates, and the pressure in the storage tank (B) is reduced to the water surface (of the stored wastewater). L) When the air inside the pipe (4) is depressurized from the tip of the aeration pipe (4) located below until it is spouted into the stored wastewater (aluminum), the used weft jet water and its jet Impurities such as glue force λ and scum (waste water containing BL), such as water dehydrated from the fabric being weaved that has been moistened with water, are sucked into the pipe (4), Aeration is performed by ejecting the stored wastewater from the tip (from the inside) with air. Therefore, the impurity (b) becomes suspended in the stored wastewater. Decompressor during jet room operation (1
) continues to operate at all times, so the above-mentioned suspended state also continues. When the water jet loom stops operating, the pressure reducer (1) also stops operating, and at the same time the drain valve (3) is opened, and the wastewater with the impurities (6) dispersed in suspension is directly discharged to the drain. be done.

Specific Example 8 A machine industry that weaves various types of nylon tack using a 18φ bonde (weft injection device) using 48 units of water jet machines (LW-41) and a loom rotation speed of 400 r, p, m. At the site, 24 of them used conventionally used storage tanks as shown in FIG. 1, and the remaining 24 used storage tanks in which the method of the present invention was implemented.

Each draining viper was investigated. The results are shown in the table below. Column A shows the condition of the drain in the conventional storage tank. BIIIC shows the condition of the drain in the storage tank where the method of the present invention was applied.
Each is shown below.

As is clear from the above specific examples, when the method of the present invention is carried out, impurities become suspended in wastewater and are discharged as they are, so the discharge efficiency can be dramatically increased. As a result, impurities such as gelatinous filth, etc., do not accumulate and accumulate in the drainage channels in the machinery industry, causing strange odors. Therefore, the frequency of cleaning the drains, which has traditionally been done, is greatly reduced. The present invention is a simple method and has many advantages including labor saving.

[Brief explanation of the drawing]

FIG. 1 is a simplified side view of a conventional storage tank, etc., and FIG. 42 is a simplified side view of an embodiment of a storage tank, etc. for carrying out the method of the present invention. France)...Conventional storage tank, a3)...Storage tank for carrying out the method of the present invention, (1)...Reduced pressure, (2)...
・Introduction port. (3)...Drain valve, (4)...Aeration bif, I&
)...Wastewater (bl...Impurity patent applicant Unitika Co., Ltd.)

Claims (1)

[Claims] (1) A method for discharging wastewater in a water jet loom, which is characterized by aerating wastewater containing glue residue, scum, etc. generated during weaving in a water jet loom in a depressurized storage tank, and discharging it in a suspended state. .