WO2020096547A2

WO2020096547A2 - Fabric dyeing machine automatic filter cleaning system

Info

Publication number: WO2020096547A2
Application number: PCT/TR2019/050758
Authority: WO
Inventors: Kaan CAKICI
Original assignee: Canlar Mekatronik Sanayi Ve Ticaret Anoni̇m Sirketi
Priority date: 2018-09-14
Filing date: 2019-09-13
Publication date: 2020-05-14
Also published as: WO2020096547A3

Abstract

Basically, the invention relates to automatic cleaning of filter system (2) used in fabric dyeing machines (1 ) having filter chamber (40), which is used to process contaminated water (KS) containing fabric particles and / or impurities which are disintegrated during fabric dyeing after they leave the dyeing vessel to return it to the system as filtered water (FS) via a filter (42) with a conical form located inside of it and which is connected to a filter inlet pipe (20), a filter outlet pipe (60) and a drain pipe (50).

Description

FABRIC DYEING MACHINE AUTOMATIC FILTER CLEANING SYSTEM Technical Field

The present invention relates to the automatic cleaning of the filter system of fabric dyeing machines used in fabric dyeing sector, which removes fabric waste and foreign substances from the recycled water by cleaning the circulating the water.

More specifically, the present invention relates to a filter cleaning system for fabric dyeing machine liquid filters that filter out waste and/or fabric pieces from the liquid leaving the dyeing machine, thus providing straightforward liquid flow, enabling highly efficient fabric dyeing with energy saving, also saving labour needs and maintenance time by eliminating the filter change process during each washing.

State of the Art

The most important point to be considered in the fabric dyeing systems used in the textile sector is the dyeing of the fabric on the homogeneous and correct temperature scale.

Otherwise, material, time and labour losses may occur due to improper application of fabric and liquid.

Existing fabric dyeing machines consist of pump which provides circulation of dye, filter system at the pump outlet, heat exchanger, nozzle and dyeing boat systems.

The dyeing liquid used in the dyeing machines used must have a certain temperature and flow rate.

It has been found that it is important that the flow does not fall due to blockages in the filter system, especially of the circulating liquid in the process.

In fabric dyeing process, the fabric to be dyed must rotate continuously in the drum with a certain speed. One of the factors affecting this rotation speed is the flow force applied by the mixture of water and paint sprayed at the outlet of the device.

However, one of the problems that occur at this point is that the paint liquid applied with a certain force causes a certain wear on the surface of the fabric and the parts coming out of the fabric cause problems in the circulation process.

During the dyeing process, the residues of fabric lint that breaks are mixed into the dyeing liquid, which accumulate in the narrow spaces of the machine equipment and cause clogging. In particular, in each batch production, a stable water flow cannot be achieved since the filling of the filter in front of the circulation pump during circulation changes the nozzle pressure and the flow rate of the passing water. In this case, it prevents the dyeing quality and penetration of the fabric.

For this purpose, it is necessary to ensure that the liquid is constantly filtered through a complete process. In order to achieve this, the water passes through the filters in the treatment systems and the fabric pieces are kept. This reduces the risk of a problem during spraying of the dyeing liquid.

The batch production time of the dyeing machines varies according to the process and takes 6-8 hours. The filter needs to be cleaned after each batch is finished. During each batch, the liquid is circulated in the dyeing machine process and cleaned through the filter and repeatedly conveyed to the dyeing vessel through the process elements. It is provided to be cleaned by passing over the filter in every turn.

Manual cleaning of the filter after each batch can take 30-60 minutes. For cleaning, the filter is removed from the system and manually cleaned by brush and similar.

Manual cleaning of the mechanical filter systems used in the present technique causes losses in the fluid circulation pressure between the dye and the fabric if the elements such as lint accumulation in the filter cannot be removed adequately.

A dyeing process takes approximately 8 hours to complete. If the dyeing machine stops for any reason during this period, the dyeing process cannot be performed at the desired level.

Therefore, in order to avoid any problems, it is obligatory to clean the entire filter system at the end of each process.

After the painting process is completed in the filter systems used in the present technique, the process of removing the filter from the machine and cleaning it with the help of apparatus takes the minimum half hour of a worker. In some cases, especially in shift changes, this cleaning can be forgotten or neglected, resulting in failure of flow losses.

The cleaning of the filters used in the present art is time consuming and reduces the dyeing process and quality, its productivity.

Another problem is the extra power required by the pump to keep the water flow at the same level due to the filter system that is filled at the end of the process time. Pumped water at different flow rates affects the quality of painting.

As a result, it has become necessary to develop a filter system which is more controllable in fabric dyeing machines, eliminates pressure losses and can be cleaned in a short time and more effectively.

At this point, the device according to the invention provides a filter system which can be cleaned automatically and more effectively as a solution, unlike all prior art approaches.

Brief Description of the Invention

The present invention relates to a dyeing machine filter system which satisfies the aforementioned requirements, eliminates all the disadvantages and provides a homogeneous dyeing with some additional advantages.

The object of the invention is to provide a controlled and more efficient cleaning of the filter used in the process of fabric dyeing machines.

Another object of the invention is to provide stable water pressure from the prior art. Another object of the invention is to provide an increase in chemical yield.

Another object of the invention is to eliminate the loss of time and labor by preventing energy and material losses.

Another object of the invention is to provide high quality product by dyeing raw fabrics with regular flow rate in the process.

Brief Description of the Figures

In Figure-1 , the general view of the dyeing machine including the filter system of the invention is given.

In Figure 2 and 3 perspective and front views of the filter system elements of the invention are given.

Figure 4 shows the position of the valves and the appearance of the liquid flow in the filter system of the invention during filtration.

Figure 5 shows the view of valves and liquid flow in case of discharge and automatic filter cleaning of the filter system according to the invention.

Figure 6a and 6b show the side and front view of the filter chamber. Figure 7 shows the general perspective view of the filter.

Referance number

1 . Fabric Dyeing Machine

2. Filter System

20. Filter Inlet Pipe 21. Filter Valve

30. Washing Direction Pipe

31. Washing Valve

40. Filter Chamber

41. Filter Cover

42. Filter

43. Flousing Top Connection

44. Flousing Bottom Connection

45. Flousing Drain Connection

50. Drain Pipe

51. Drain Valve

60. Filter Outlet Pipe

61. Control Valve

70. Heat Exchanger

80. Pump

A. Open

K. Closed

b. Filtering Flow Direction

c. Washing flow direction

KS. Dirty water

FS. Filtered Water

BS: Discharge Water

Detailed Description of the Invention

The invention relates to the filter system (2), which eliminates the need for manual cleaning of the filter (42) used in fabric dyeing machines (1 ) and provides automatic and more efficient cleaning.

In the fabric dyeing machine (1 ), the general view of which is shown in Figure 1 , the fabric to be dyed must be continuously rotated at a certain speed in the drum. One of the speeds affecting this rotation is the flow force applied by the sprayed water and paint mixture at the outlet of the device. However, one of the problems that occur at this point is that the paint liquid applied with a certain force causes a certain wear on the surface of the fabric and the parts coming out of the fabric cause problems in the circulation process. Remains of fabric lint detached during the dyeing process are mixed into the dyeing liquid. These lints accumulates in the spaces in the narrow areas of the machine equipment and causes blockages.

For this purpose, the water passes through the filters (42) in the treatment systems and the fabric pieces are held. A batch production time of the fabric dyeing machines (1 ) lasts for 6-8 hours, depending on the process. During this time, the liquid is circulated in the dyeing machine process and is passed through the filter (42) and cleaned and repeatedly conveyed to the dyeing vessel by means of process elements. Manual cleaning of the filter (42) after each complete batch may take 30-60 minutes. For cleaning, the filter (42) is removed from the system by opening the filter cover (41 ) and manually cleaned via a brush and similar elements and placed again.

If the mechanical filter systems (2) used in the present art are manually cleaned and the lint accumulation in the filter (42) is not sufficiently removed, it causes losses in the fluid circulation pressure which reduces the bath change between the dye and the fabric.

The filter system (2) of the present invention comprises a filter valve (21 ) placed on the filter inlet pipe (20) and the housing bottom connection (44), a control valve (61 ) located on the filter outlet pipe (60), a washing direction pipe (30) located between the filter inlet pipe (20) and the filter outlet pipe (60) and in the direction perpendicular to the axis of them a washing valve (31 ) connected to said washing direction pipe (30). Basically, the invention relates to an innovation regarding to the self cleaning of the filter system (2), which purifies the dirty water (KS), which circulates through the process in the fabric dyeing machines (1 ), and return as filtered water (FS) to the system by filtering out the fabric lints and/or impurities inside the circulating water, which comprises a filter (42) with a conical form that provides purification and is connected to the filter inlet pipe (20), the filter outlet pipe (60) and the drain pipe (50). For this purpose, there is a filter valve (21 ) in front of the housing bottom connection (44), on the filter inlet pipe (20) and in a position not to obstruct the washing flow direction (c). It also includes a control valve (61 ) on the filter outlet pipe (60) in a position not to obstruct the washing flow direction (c).

In order to form the washing flow direction (c), there is the washing direction pipe (30) located between the filter inlet pipe (20) and the filter outlet pipe (60) and connected both of them. The washing valve (31 ) is formed on said washing direction pipe (30). Figure 1 shows the general view of the fabric dyeing machine (1 ) containing the filter system (2) of the present invention. The filter (42) is located in a filter chamber (40). In order to provide effective filtration and cleaning in the filter system (2) according to the invention, the filter (42), which is given in perspective view in Figure 7, is conical. It has a narrowing form from top to bottom.

Thanks to the conical structure of the filter (42), the outlets that can occur during the movement are eliminated, the conical structure enables the collaring in the cleaning process and at the same time, the filtering during a whole process is more efficient. Figure 2 shows all elements of the filter system (2). Before the fabric dyeing machine

(1 ) is activated, the valves on the filter (42) shall be opened and closed correctly. Figure 4 shows the view of the position of the valves the filter system (2) of the invention while filtering and the filtering flow direction (b) of the liquid.

When the fabric dyeing machine (1 ) is active, the filter valve (21 ) located on the filter inlet pipe (20) is in open position to allow liquid passage. In the filtering position, the washing valve (31 ) located on the washing direction pipe (30) is in the closed position to prevent fluid passage.

In this way, the dirty water (KS) coming from the machine via the pump (80) moves through the filter inlet pipe (20) into the filter chamber (40). Since the washing valve (31 ) is in the closed position, there is no liquid passage through the washing direction pipe (30).

The liquid passes through the filter valve (21 ) and after that passes through the filter (42) located in the filter chamber (40), flowing through the filtering flow direction (b) and the filtered water (FS) is introduced into the process through the filter outlet pipe (60). Due to the conical structure of the filter (42), the dirty water (KS) entering the filter chamber (40) under the effect of pressure (escaping from the axis) touches the entire surface of the filtration area and provides effective filtration.

In this case, the control valve (61 ) located on the filter outlet pipe (60) is in the open position to allow fluid passage.

This circulation is demonstrated until the fabric dyeing machine (1 ) completes a complete batch, the liquid dirty water (KS) is passed through the filter (42) to the filter system (2) and is included in the fabric dyeing process as filtered water (FS).

After the fabric dyeing machine (1 ) completes a full dyeing process, the filter system

(2) is brought into the discharge and automatic filter cleaning position as shown in Figure 5 for cleaning the filter (42) before the next dyeing process.

For this purpose, the filter valve (21 ) located on the filter inlet pipe (20) and the control valve (61 ) located on the filter outlet pipe (60) are brought to the closed (K) position to prevent liquid passage. At the same time, the washing valve (31 ) positioned on the washing direction pipe (30) is turned to the open (A) position to allow fluid passage. In this way, the discharge water (BS), which is conveyed to the filter inlet pipe (20) by the pump (80), is sent in the washing flow direction (c) shown in Figure 5.

The discharge water (BS) passes over the washing direction pipe (30) and is directed to the opposite direction in the filter outlet pipe (60) and is conveyed to the filter chamber (40) from the housing top connection (43). At this stage, the conical form of the filter (42) enables the discharge water (BS) to flow through the entire surface of the filter (42).

The discharge water (BS) is passed through the entire surface of the filter (42) located in the filter chamber (40) and is directed to the drain pipe (50) on the housing drain connection (45), while the discharge valve (51 ) is open (A), the dirty water (KS) discharge is provided.

Thus, it is provided that the filter (42) is opened and closed automatically by the valves without being taken out of the filter chamber (40) and cleaned by directing the discharge water (BS).

The filter (42) is cleaned by directing the discharge water (BS) taken into the filter system (2) through the pump (80) as opposed to the filtering direction.

The position of the valves by function is summarized below.

In the filtering stage;

- Filter Valve (21 ): open (A)

- Control Valve (61 ): Open (A)

- Washing Valve (31 ): Closed (K)

- Drain Valve (51 ): Closed (K)

Discharge and automatic filter cleaning position;

- Filter Valve (21 ): Closed (K)

- Control Valve (61 ): Closed (K)

- Washing Valve (31 ): Open (A)

- Drain Valve (51 ): Open (A)

In this context, the control valve and the filter valve are arranged in a position not to obstruct the washing flow direction (c), and the wash valve is positioned in a position not to obstruct the filtering flow direction (b).

Claims

1 . An invention related to an innovation for automatic cleaning of filter system (2) used in the fabric dyeing machines (1 ) having a filter chamber (40), which is used to process contaminated water (KS) containing fabric particles and / or impurities which are disintegrated during fabric dyeing after they leave the dyeing vessel to return it to the system as filtered water (FS) via a filter (42) located inside of it and which is connected to a filter inlet pipe (20), a filter outlet pipe (60) and a drain pipe (50), comprising:

a filter valve (21 ) located in front of a housing bottom connection (44) and on the filter inlet pipe (20);

a control valve (61 ) located on the filter outlet pipe (60) and in front of the outlet connection from the system;

a washing direction pipe (30) which is located between the filter outlet pipe

(20) and the filter outlet pipe (60) and which is connected both;

and a washing valve (31 ) which is located on the washing direction pipe (30).

2. The filter (42) according to claim 1 , characterized in that; the filter (42) positioned in said filter chamber (40) has a conical structure.

3. The invention for automatic cleaning of the filter system (2) according to claim 1 , characterized in that; in order to advance the discharge water (BS) in a washing flow direction (c) when said filter system (2) is placed in the discharge and automatic cleaning position,

- the filter valve (21 ) located on the filter inlet pipe (20) and the control valve (61 ) located on the filter outlet pipe (60) are in a closed (K) position, which prevents the passage of liquid,

- the washing valve (31 ) located on the washing pipe (30) is in the open (A) position, which allows fluid passage.

4. The invention for automatic cleaning of the filter system (2) according to claims 1 and 3, characterized in that; the control valve (61 ) and the filter valve (21 ) have the feature to be connected in a position not to block the washing flow direction (c).