A method for filtering and removing impurities in dye liquor in a dyeing sample machine

Abstract

The application provides a method for filtering and removing impurities in dyeing solution in a dyeing sample machine, which comprises the following steps: step 10, closing a first valve located above a filter screen to prevent the downward flow of the dyeing solution; then closing a second valve located below the filter screen to form a removal space between the first valve and the second valve in the inner cavity of a pipe body; step 20, opening a third valve arranged at a discharge port between the first valve and the filter screen to perform air extraction on the removal space, so that the impurities on the filter screen are discharged from the discharge port along the air flow; and step 30, stopping the air extraction after a first preset time period. The method for filtering and removing impurities in dyeing solution in the dyeing sample machine can remove the impurities on the filter screen without disassembling the filter screen.

Description

Technical Field

[0001] The invention belongs to the technical field of textile technology, and particularly relates to a method for filtering and removing impurities from dye liquor in a dyeing prototype machine. Background Art

[0002] Before dyeing, the dye of the desired color is prepared in a dye tank. After preparation, the dye is then delivered to the dyeing equipment. When preparing the dye, most people use color powder for dissolution and preparation. Sometimes, due to inappropriate temperature or uneven stirring in the dye tank, some undissolved dye powder or particles remain in the dye. Sometimes, there are also some fibers in the dye. If it is directly delivered to the dyeing equipment, it is easy to clog the delivery pipeline and damage the dyeing equipment. The existing practice is to set a filter at the outlet of the dye tank. When the dye is output, the filter intercepts impurities. However, after filtering for a period of time, impurities adhere to the surface of the filter, blocking the filter mesh and affecting the subsequent output of the dye. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a method for filtering and removing impurities from dye liquor in a dyeing prototype, which can remove impurities on a filter screen without disassembling the filter screen.

[0004] To solve the above technical problems, an embodiment of the present invention provides a method for filtering and removing impurities from dye liquor in a dyeing prototype, comprising the following steps:

[0005] Step 10: Close the first valve above the filter to prevent the dye solution from flowing downward; then close the second valve below the filter to form a clearance space between the first valve and the second valve in the lumen of the tube body;

[0006] Step 20: Open a third valve disposed at the mass outlet between the first valve and the filter, and evacuate the cleaning space at the mass outlet so that impurities on the filter are discharged from the mass outlet along with the air flow.

[0007] Step 30: After the first preset time period, stop pumping.

[0008] As a further improvement of the embodiment of the present invention, in step 20, before the air is pumped out, the impurities on the surface of the filter are first gathered to the side where the outlet is located.

[0009] As a further improvement to the embodiment of the present invention, a cleaning member is used to gather impurities on the surface of the filter to the side where the outlet is located. Specifically, the cleaning member is driven to move on the surface of the filter from the side opposite to the outlet to the side where the outlet is located. During the movement, the cleaning member pushes the impurities on the surface of the filter to move and finally gathers them on the side where the outlet is located.

[0010] As a further improvement to the embodiment of the present invention, airflow is used to gather impurities on the surface of the filter to the side where the outlet is located, specifically including opening a fourth valve arranged at the air inlet opposite to the outlet, blowing air toward the outlet at the air inlet, so that the impurities on the surface of the filter follow the airflow to move toward the outlet, and finally gather on the side where the outlet is located.

[0011] As a further improvement of the embodiment of the present invention, the following further aspects are included:

[0012] Step 401: close the third valve and open the second valve below the filter;

[0013] Step 402: High-pressure water is sprayed vertically downward from above the filter. The high-pressure water impacts the filter, causing some impurities to break away from the filter and flow downward with the water flow, and then flow through the second valve for discharge.

[0014] Step 403: The filter screen is heated, and the dye particles on the surface of the filter screen dissolve in the water flow. The fibers curl and shrink, and then, under the impact of the high-pressure water, they break away from the filter screen and flow downward with the water flow, and are discharged through the second valve;

[0015] Step 404: After the second preset time period, stop spraying water and heating.

[0016] As a further improvement of the embodiment of the present invention, the filter screen includes a first filter screen and a second filter screen spaced apart from each other; step 402 specifically includes:

[0017] High-pressure water is sprayed vertically downward from above the first filter screen. The high-pressure water impacts the first filter screen, causing some impurities on the first filter screen to break away from the first filter screen and flow downward with the water flow. The water flow then impacts the second filter screen, causing some impurities on the second filter screen and some impurities on the first filter screen that have flowed down with the water flow to pass through the second filter screen and continue to flow downward with the water flow, flowing through the second valve and being discharged. The remaining impurities on the first filter screen that have flowed down with the water flow are retained on the second filter screen.

[0018] After the third preset time period, high-pressure water is sprayed vertically downward from above the second filter screen. The high-pressure water impacts the second filter screen, causing impurities on the second filter screen to separate from the second filter screen and flow downward with the water flow and be discharged through the second valve.

[0019] As a further improvement to the embodiment of the present invention, the pore size of the first filter screen is larger than the pore size of the second filter screen.

[0020] As a further improvement to the embodiment of the present invention, the pressure of the high-pressure water impacting the first filter screen is smaller than the pressure of the high-pressure water impacting the second filter screen.

[0021] As a further improvement of the embodiment of the present invention, the following further aspects are included:

[0022] Step 501: High-pressure water is sprayed vertically upward from the bottom of the filter. The high-pressure water impacts the filter, causing impurities to break away from the filter and flow upward with the water.

[0023] Step 502: The filter screen is heated, and the dye particles on the surface of the filter screen are dissolved in the water flow, and the fibers curl and shrink. Under the impact of the high-pressure water, the dye particles detach from the filter screen and flow upward with the water flow.

[0024] Step 503: Pump water from the cleaning space at the outlet so that impurities are discharged from the outlet along with the water flow.

[0025] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0026] The present invention provides a method for filtering and removing impurities from dye liquid in a dyeing prototype. The method comprises the following steps: firstly closing two valves above and below a filter screen so that an inner cavity of a tube body between the two valves forms a cleaning space; then evacuating the cleaning space at an outlet port so that an airflow moving toward the outlet port is generated in the cleaning space, so that impurities trapped on the filter screen can be separated from the filter screen and discharged from the outlet port along with the airflow, thereby achieving the effect of removing impurities from the filter screen and preventing impurities from clogging the filter holes of the filter screen. This ensures the filtering effect of the filter screen without affecting the smooth output of subsequent dye liquid, and does not require disassembly of the filter screen, making the operation convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Flowchart of an impurity removal method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

[0029] An embodiment of the present invention provides a method for filtering and removing impurities from dye liquor in a dyeing prototype, employing a filtering and removing device comprising a tube body, a first valve, a filter screen, and a second valve. The tube body is a hollow structure with openings at both ends, and the first valve, the filter screen, and the second valve are sequentially spaced along the axial direction of the tube body within the inner cavity of the tube body. The tube body is vertically mounted at the outlet at the bottom of a dye liquor tank, with the top opening of the tube body communicating with the outlet of the dye liquor tank. The first valve, the filter screen, and the second valve are sequentially arranged from top to bottom. A mass outlet is provided on the side wall of the tube body, the mass outlet being located between the first valve and the filter screen, and a third valve is provided at the mass outlet.

[0030] The method of this embodiment is as follows Figure 1 As shown, the following steps are included:

[0031] Step 10: close the first valve above the filter to prevent the dye solution from flowing downward, and then close the second valve below the filter to form a clearance space between the first valve and the second valve in the inner cavity of the tube body.

[0032] Step 20: Open the third valve at the outlet between the first valve and the filter, and evacuate the cleaning space at the outlet so that impurities on the filter are discharged from the outlet along with the air flow.

[0033] Step 30: After the first preset time period, stop pumping.

[0034] The method for filtering and removing impurities from dye solution in a dyeing prototype of the present embodiment first closes the two valves above and below the filter screen, so that a cleaning space is formed in the cavity of the tube body between the two valves, and air is evacuated from the cleaning space at the outlet, so that an airflow moving toward the outlet is generated in the cleaning space, which can cause impurities trapped on the filter screen to break away from the filter screen and be discharged from the outlet with the airflow, thereby achieving the effect of removing impurities from the filter screen and preventing impurities from clogging the filter holes of the filter screen. This ensures the filtering effect of the filter screen without affecting the smooth output of the subsequent dye solution, and does not require the filter screen to be disassembled, making the operation convenient.

[0035] As a preferred example, in step 20, before vacuuming, impurities on the surface of the filter are first gathered to the side where the outlet is located. In this embodiment, impurities on the surface of the filter are first gathered to the side where the outlet is located, and then vacuuming is performed from the outlet, so that impurities are smoothly sucked into the outlet and the cleaning effect is improved.

[0036] Preferably, a cleaning member is used to gather impurities on the filter surface to the side where the outlet is located. Specifically, the cleaning member is driven to move on the filter surface from the side opposite the outlet to the side where the outlet is located. During the movement, the cleaning member pushes the impurities on the filter surface to move and finally gather them to the side where the outlet is located.

[0037] Alternatively, preferably, impurities on the filter surface are gathered toward the outlet side by airflow. Specifically, a fourth valve located at the air inlet opposite the outlet is opened, and air is blown toward the outlet from the air inlet, causing impurities on the filter surface to follow the airflow toward the outlet and ultimately gather toward the outlet side.

[0038] As a first preferred example, the method of this embodiment further includes:

[0039] Step 401: close the third valve and open the second valve below the filter.

[0040] In step 402, high-pressure water is sprayed vertically downward from above the filter. The high-pressure water impacts the filter, causing some impurities to escape from the filter and flow downward with the water flow, ultimately exiting through the second valve. Specifically, a nozzle is provided above the filter. High-pressure water is pumped out by a high-pressure pump and passes through a pipeline to the nozzle, forming a high-pressure, high-flow jet that is ejected downward, impacting the filter.

[0041] Step 403: The filter screen is heated, and the dye particles on the surface of the filter screen are dissolved in the water flow. The fibers curl and shrink, and are separated from the filter screen under the impact of high-pressure water and flow downward with the water flow, and are discharged through the second valve.

[0042] Wherein, step 402 and step 403 are executed simultaneously.

[0043] Step 404: After the second preset time period, stop spraying water and heating.

[0044] In this embodiment, high-pressure water is sprayed vertically downward above the filter, with the spray area adapted to the area of ​​the filter. This high-pressure, high-flow jet flushes the filter, generating high impact kinetic energy. This continuously impacts the filter surface, causing most impurities to move downward through the filter mesh under the impact force, escape from the filter surface, and flow out of the lower opening of the tube body through the second valve driven by the water flow. The high-pressure water spray simultaneously heats the filter, raising the temperature of the filter, dissolving any dye particles adhering to the filter and causing the fibers to curl. These impurities, driven by the jet, then pass through the filter mesh and flow out of the lower opening of the tube body along with the water flow.

[0045] After the impurities on the filter are preliminarily removed by vacuuming, the method of this embodiment uses the combined effects of downward high-pressure water jetting and heating the filter to impact and dissolve the remaining impurities on the filter, so that the impurities are separated from the filter and move downward with the water flow to be discharged, thereby further removing the residual impurities on the filter, improving the removal effect of impurities on the filter, and preventing impurities from clogging the filter holes of the filter. This ensures the filtering effect of the filter without affecting the smooth output of the subsequent dye solution, and does not require the filter to be disassembled, making the operation convenient.

[0046] Preferably, the filter screen includes a first filter screen and a second filter screen spaced apart from each other. Further preferably, the pore size of the first filter screen is larger than the pore size of the second filter screen. The first filter screen can filter out larger impurities, while the second filter screen can filter out smaller impurities. The dye liquor passes through the first and second filter screens sequentially, achieving graded filtration and achieving good filtration effects.

[0047] Step 402 specifically includes:

[0048] High-pressure water is sprayed vertically downward from above the first filter, impacting the first filter. This water forces some impurities on the first filter to break away from it and flow downward with the water. The water then impacts the second filter, causing some impurities on the second filter and some impurities on the first filter that have flowed down with the water to pass through the second filter and continue flowing downward with the water, flowing through the second valve and being discharged. The remaining impurities on the first filter that have flowed down with the water are retained on the second filter.

[0049] After the third preset time period, high-pressure water is sprayed vertically downward from above the second filter screen. The high-pressure water impacts the second filter screen, causing impurities on the second filter screen to separate from the second filter screen and flow downward with the water flow and be discharged through the second valve.

[0050] In this embodiment, high-pressure water is first sprayed vertically downward over the first filter, with the spray area matching the area of ​​the first filter. The high-pressure, high-flow jet flushes the first filter, generating high impact kinetic energy. This jet continuously impacts the surface of the first filter, causing most impurities to move downward through the mesh of the first filter under the impact force, escape from the surface, and fall onto the second filter under the influence of the water flow. The high-pressure water spray simultaneously heats the first filter, raising its temperature and dissolving dye particles adhering to the first filter. This causes the fibers to curl, allowing the jet to pass through the mesh of the first filter and fall onto the second filter with the water flow. The water flow, carrying impurities, impacts the second filter, causing some impurities on the second filter and some impurities on the first filter to flow downward with the water flow and be discharged through the second valve. The remaining impurities on the first filter are retained on the second filter. After a third predetermined period of time, high-pressure water is sprayed vertically downward over the second filter, with the spray area matching the area of ​​the second filter. The second filter is flushed with a high-pressure, high-velocity jet, generating high impact kinetic energy. This impact force forces impurities on the second filter to move downward through the mesh, escape from the surface, and flow out of the tube body's lower opening through the second valve. The high-pressure water jet simultaneously heats the second filter, raising its temperature and dissolving any dye particles adhering to it. This curls the fibers, allowing them to pass through the mesh under the jet's action and flow through the second valve with the water flow, exiting the tube body's lower opening.

[0051] This embodiment of the method first uses high-pressure water spraying and heating the first filter to impact and dissolve impurities on the first filter, driving them downward and away from the first filter. Simultaneously, the downward-flowing water also impacts the second filter, driving impurities downward and away from the second filter. Then, high-pressure water spraying and heating the second filter further impact and dissolve impurities on the second filter, driving them downward and away from the second filter. This removes impurities from both the first and second filters, improving the removal efficiency of the impurities on the filters.

[0052] Considering that the pore size of the second filter is smaller than that of the first filter, some of the impurities on the first filter flowing downward with the water flow will be intercepted by the second filter upon passing through it. Preferably, the pressure of the high-pressure water striking the first filter is lower than the pressure of the high-pressure water striking the second filter. A greater flushing force on the second filter can effectively flush the impurities on the second filter downward through the second filter and discharge them, thereby improving the impurity removal efficiency of the second filter and the impurity removal efficiency of the entire filter.

[0053] As a second preferred example, the method of this embodiment further includes:

[0054] Step 501: High-pressure water is sprayed vertically upward from the bottom of the filter. The high-pressure water impacts the filter, causing impurities to break away from the filter and flow upward with the water.

[0055] Step 502: The filter screen is heated, and the dye particles on the surface of the filter screen are dissolved in the water flow. The fibers curl and shrink, and are separated from the filter screen under the impact of high-pressure water and flow upward with the water flow.

[0056] Step 503: Pump water from the cleaning space at the outlet so that impurities are discharged from the outlet along with the water flow.

[0057] In this embodiment, high-pressure water is sprayed vertically upward from below the filter, with the spray area adapted to the filter's surface. This high-pressure, high-velocity jet flushes the filter, generating high impact kinetic energy. This jet continuously impacts the filter surface, causing most impurities to move upward with the water flow and escape from the filter surface. The high-pressure water spray simultaneously heats the filter, raising its temperature and dissolving any dye particles adhering to it. This causes the fibers to curl and, under the impact of the jet, flow upward with the water flow. Simultaneously, the water, under the pump's suction force, carries the impurities with it out through the outlet.

[0058] The method of this embodiment, after preliminarily removing impurities on the filter screen by means of suction, then impacts and dissolves the residual impurities on the filter screen by the combined effect of spraying high-pressure water upward and heating the filter screen, so that the impurities are separated from the filter screen and flow upward with the water flow. Finally, the water flow with impurities is discharged by means of pumping, thereby further removing the residual impurities on the filter screen, improving the removal effect of impurities on the filter screen, and preventing impurities from clogging the filter holes of the filter screen. This ensures the filtering effect of the filter screen without affecting the smooth output of the subsequent dye solution, and does not require the removal of the filter screen, making the operation convenient.

[0059] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the scope of protection of the present invention.

Claims

1. A method for filtering and removing impurities from dye liquor in a dyeing prototype, comprising the following steps: Step 10: Close the first valve above the filter to prevent the dye solution from flowing downward; then close the second valve below the filter to form a clearance space between the first valve and the second valve in the lumen of the tube body; Step 20: Open a third valve disposed at the mass outlet between the first valve and the filter, and evacuate the cleaning space at the mass outlet so that impurities on the filter are discharged from the mass outlet along with the air flow. Step 30, after the first preset time period, stopping the pumping; characterized in that it also includes: Step 401: close the third valve and open the second valve below the filter; Step 402: High-pressure water is sprayed vertically downward from above the filter. The high-pressure water impacts the filter, causing some impurities to break away from the filter and flow downward with the water flow, and then flow through the second valve for discharge. Step 403: The filter screen is heated, and the dye particles on the surface of the filter screen dissolve in the water flow. The fibers curl and shrink, and then, under the impact of the high-pressure water, they break away from the filter screen and flow downward with the water flow, and are discharged through the second valve; Step 404: After the second preset time period, stop spraying water and heating; or, Step 501: High-pressure water is sprayed vertically upward from the bottom of the filter. The high-pressure water impacts the filter, causing impurities to break away from the filter and flow upward with the water. Step 502: The filter screen is heated, and the dye particles on the surface of the filter screen are dissolved in the water flow, and the fibers curl and shrink. Under the impact of the high-pressure water, the dye particles detach from the filter screen and flow upward with the water flow. Step 503: Pump water from the cleaning space at the outlet so that impurities are discharged from the outlet along with the water flow.

2. The method for filtering and removing impurities from dye liquor in a dyeing prototype according to claim 1, wherein: In step 20, before vacuuming, impurities on the surface of the filter are first gathered to the side where the outlet is located.

3. The method for filtering and removing impurities from dye liquor in a dyeing prototype according to claim 2, wherein: A cleaning member is used to gather impurities on the surface of the filter to the side where the outlet is located. Specifically, the cleaning member is driven to move on the surface of the filter from the side opposite to the outlet to the side where the outlet is located. During the movement, the cleaning member pushes the impurities on the surface of the filter to move and finally gathers them on the side where the outlet is located.

4. The method for filtering and removing impurities from dye liquor in a dyeing prototype according to claim 2, wherein: An airflow is used to gather impurities on the surface of the filter to the side where the outlet is located. Specifically, the fourth valve arranged at the air inlet opposite to the outlet is opened, and air is blown toward the outlet at the air inlet, so that the impurities on the surface of the filter follow the airflow to move toward the outlet and finally gather on the side where the outlet is located.

5. The method for filtering and removing impurities from dye liquor in a dyeing prototype according to claim 1, wherein: The filter screen includes a first filter screen and a second filter screen spaced apart from each other. Step 402 specifically includes: High-pressure water is sprayed vertically downward from above the first filter screen. The high-pressure water impacts the first filter screen, causing some impurities on the first filter screen to break away from the first filter screen and flow downward with the water flow. The water flow then impacts the second filter screen, causing some impurities on the second filter screen and some impurities on the first filter screen that have flowed down with the water flow to pass through the second filter screen and continue to flow downward with the water flow, flowing through the second valve and being discharged. The remaining impurities on the first filter screen that have flowed down with the water flow are retained on the second filter screen. After the third preset time period, high-pressure water is sprayed vertically downward from above the second filter screen. The high-pressure water impacts the second filter screen, causing impurities on the second filter screen to separate from the second filter screen and flow downward with the water flow and be discharged through the second valve.

6. The method for filtering and removing impurities from dye liquor in a dyeing prototype according to claim 5, wherein: The pore size of the first filter is larger than the pore size of the second filter.

7. The method for filtering and removing impurities from dye liquor in a dyeing prototype according to claim 6, wherein: The pressure of the high-pressure water impacting the first filter screen is lower than the pressure of the high-pressure water impacting the second filter screen.

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