Washing and drying apparatus for removing solvent from Chlorinated Polyvinyl Chloride Filament fiber

Abstract

The present invention relates to a washing and drying device for removing solvent from CPVC long fiber yarn, comprising: a first and second roller (30) (40) configured as an upper and lower pair to transport the long fiber yarn (100) for washing the solvent used as a spinning solvent for the long fiber yarn (100) that is coagulated and discharged through a spinning package (10) and a coagulation bath (20); a drying roller (31) (41) installed to extend from one side of the first and second rollers (30) (40) so that the long fiber yarn (100) can be continuously dried after being washed; a washing water sprayer (50) installed on one side of the upper part of the first roller (30) to spray washing water onto the long fiber yarn (100); and a washing water tank (60) installed below the second roller (40) to remove solvent adhering to the long fiber yarn (100) and collect washing water falling downward. It is composed of a spray nozzle (62) that circulates the washing water collected in the washing tank (60) by a pump and sprays it from the upper part of the first roller (30), and a plurality of partitions (42) are formed in a protruding shape on the outer surface of the second roller (40), and a separation groove (44) is formed such that a partition (64) of the washing tank (60) is positioned in the partition (42), and a separation groove (44) is formed protruding on both sides with the separation groove (44) in the center so that the washing water that washes the long fiber yarn (100) transported through the transport space (45) does not go over the partition (42) and falls vertically downward so that the washing water falls vertically downward. In this state, the partition (64) is positioned in the separation groove (44), and the washing water is separated and falls into the left and right chambers (63) based on the partition (64), thereby allowing the washing water to be collected in each chamber (63) without mixing with each other. It is composed of guide protrusions (43) so that solvent remaining inside and on the surface of the long fiber can be effectively removed, and the amount of washing liquid used in the washing process can be reduced.

Description

Technology Field

[0001] The present invention relates to a washing and drying device for solvent removal of CPVC long fibers, which efficiently removes solvents remaining on the interior and surface of CPVC long fibers after the spinning process within a short period of time. Background Technology

[0002] The washing, drying, and post-processing techniques after spinning of CPVC long fiber yarn (also referred to as 'filament yarn') can be manufactured using those of general wet spinning. The spinning method used for manufacturing rayon filament yarn, a cellulose-based fiber, can also be modified and used in the CPVC process.

[0003] There are discontinuous and continuous spinning methods for rayon fibers. Discontinuous spinning is divided into centrifugal spinning and bobbin spinning, while representative continuous spinning methods include the Nelson method, Oscar Cohon method, Cardian method, and Industrial Rayon method.

[0004] Among the above continuous spinning methods, the Nelson-type spinning machine has a structure in which two rollers are used as the main components, with their central axes offset at a certain angle from each other on two parallel planes spaced apart, and the yarn (meaning thread) is wound onto both rollers and transported in the direction of the long axis as the rollers rotate. During transport, washing water is sprayed onto the upper rollers to wash them, and the end of the upper roller is heated to proceed with a drying process, and after lubricating treatment, the yarn is wound up.

[0005] When this structure is applied to a CPVC spinneret, there is a problem that the manufacturing cost increases due to the high consumption of washing water, and especially when the thickness of the long fiber is 8 denier or more, DMAc (Dimethylacetamide), a solvent contained in the long fiber, is not easily washed away and remains in the fiber. Prior art literature

[0006] Korean Patent Publication No. 10-2007-0057413, 'Washing and drying apparatus for manufacturing lyocell long fiber yarn and washing and drying method using said apparatus' The problem to be solved

[0007] The objective of the present invention is to provide a washing and drying device for removing solvents from CPVC long fibers, which enables the removal of solvents remaining on the interior and surface of the long fibers while recovering and reusing the washing solution used. means of solving the problem

[0008] The present invention relates to a washing and drying device for removing solvent from CPVC long fiber yarn, comprising: a first and second roller (30) (40) configured as an upper and lower pair to transport the long fiber yarn (100) for washing the solvent used as a spinning solvent for the long fiber yarn (100) that is coagulated and discharged through a spinning package (10) and a coagulation bath (20); a drying roller (31) (41) installed to extend from one side of the first and second rollers (30) (40) so that the long fiber yarn (100) can be continuously dried after being washed; a washing water sprayer (50) installed on one side of the upper part of the first roller (30) to spray washing water onto the long fiber yarn (100); and a washing water tank (60) installed below the second roller (40) to remove solvent adhering to the long fiber yarn (100) and collect washing water falling downward. It is composed of a spray nozzle (62) that circulates the washing water collected in the washing tank (60) by a pump and sprays it from the upper part of the first roller (30), and a plurality of partitions (42) are formed in a protruding shape on the outer surface of the second roller (40), and a separation groove (44) is formed such that a partition (64) of the washing tank (60) is positioned in the partition (42), and a separation groove (44) is formed protruding on both sides with the separation groove (44) in the center so that the washing water that washes the long fiber yarn (100) transported through the transport space (45) does not go over the partition (42) and falls vertically downward so that the washing water falls vertically downward. In this state, the partition (64) is positioned in the separation groove (44), and the washing water is separated and falls into the left and right chambers (63) based on the partition (64), thereby allowing the washing water to be collected in each chamber (63) without mixing with each other. It is characterized by being composed of a guide projection (43).

[0009] Additionally, the partition (64) of the washing tank (60) is characterized by having an overflow passage (65) formed therein, which allows the washing water collected in the washing tank (60) to be transported by overflowing between the chambers (63) in a direction opposite to the transport direction of the long fiber yarn (100).

[0010] Additionally, the overflow passage (65) formed in the partition (64) is characterized by being configured to be formed at a lower height as it moves in the opposite direction to the transport direction of the long fiber yarn (100).

[0011] In addition, the device is characterized by having a lubricant coating roll (90) installed before the long fiber yarn (100) is wound onto the winder (80), so that a lubricant having lubrication, anti-static, and binding functions can be applied to the surface of the long fiber yarn (100).

[0012] In addition, it is characterized by being configured such that a plurality of spinning packages (10) are installed, and a plurality of long fiber yarns (100) are transported by the first and second rollers (30) (40) through the guide rollers, thereby allowing washing to be performed at once. Effects of the invention

[0013] The present invention has the effect of effectively removing solvents remaining on the interior and surface of long fiber yarns, and has the effect of reducing the use of washing solution during the washing process. Brief explanation of the drawing

[0014] FIG. 1 is a diagram illustrating the configuration of a washing and drying device for solvent removal of CPVC long fiber yarn according to an embodiment of the present invention. FIG. 2 is a drawing illustrating the detailed configuration of a second roller and a washing tank according to an embodiment of the present invention. FIG. 3 is a diagram illustrating a configuration in which a plurality of long fiber yarns are conveyed by a first roller and a second roller according to an embodiment of the present invention, and washing and drying are performed. Specific details for implementing the invention

[0015] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0016] Before proceeding with the explanation, we will briefly describe or omit the commonly used configurations.

[0017] FIG. 1 is a drawing illustrating the configuration of a washing and drying device for solvent removal of CPVC long fiber yarn according to an embodiment of the present invention, and FIG. 2 is a drawing illustrating the detailed configuration of a second roller and a washing tank according to an embodiment of the present invention.

[0018] The washing and drying device for removing solvent from CPVC long fiber yarn of the present invention comprises: a first and second roller (30) (40) configured as an upper and lower pair to transport the long fiber yarn (100) for washing the solvent used as a spinning solvent for the long fiber yarn (100) that is coagulated and discharged through a spinning package (10) and a coagulation bath (20); a drying roller (31) (41) installed to extend to one side of the first and second rollers (30) (40) so that the long fiber yarn (100) can be continuously dried after being washed; a washing water sprayer (50) installed on one side of the upper part of the first roller (30) to spray washing water onto the long fiber yarn (100); and a washing water tank (60) installed on the lower part of the second roller (40) to remove solvent adhering to the long fiber yarn (100) and collect washing water falling downward. It consists of a spray nozzle (62) that circulates the wash water collected in the wash tank (60) by a pump and sprays it from the upper part of the first roller (30).

[0019] The first and second rollers (30) (40) are installed in a pair arranged vertically so that washing and drying can be performed while the discharged long fiber yarn (100) is conveyed, and the long fiber yarn (100) can be conveyed by rotating in the same direction by a motor (70).

[0020] Additionally, a drying roller (31)(41) may be extended and formed on one side of the first and second rollers (30)(40) to dry the long fiber yarn (100) that has been cleaned of solvent through a washing process.

[0021] The above drying rollers (31)(41) are equipped with a heater such as a heating wire inside, so that drying is performed as the long fiber yarn (100) is transported by the drying rollers (31)(41), and the long fiber yarn (100) can be washed and dried at the same time as it is continuously transported.

[0022] A washing water sprayer (50) is installed on one side of the upper part of the first roller (30) to spray washing water to remove solvent from the long fiber yarn (100). The position where washing water is sprayed through the washing water sprayer (50) is installed in the section before the long fiber yarn (100), which is conveyed by the first and second rollers (30)(40), is finally washed and passed to the drying roller (31)(41), thereby configuring it so that the cleanest washing water is sprayed.

[0023] The above-mentioned rinse water sprayer (50) may be installed to spray rinse water onto the first roller (30) or onto the second roller (40), and may also be installed to spray rinse water directly onto both the first and second rollers (30) (40).

[0024] The second roller (40) is installed below the first roller (30) and rotates together with the first roller (30) so that the long fiber yarn (100) for washing can be transported, and the washing water used to wash the long fiber yarn (100) falls downward and falls into the washing water tank (60) installed below the second roller (40) and is collected.

[0025] The washing water collected in the washing tank (60) is circulated by the circulation pump (61) and sprayed through the spray nozzle (62) installed on the upper part of the first roller (30) to be reused for washing the long fiber yarn (100).

[0026] At this time, the long fiber yarn (100) conveyed by the first and second rollers (30)(40) is in a state where a large amount of solvent is attached to it at the front end, so washing water is sprayed to wash the long fiber yarn (100), and the washing water that falls into the washing water tank (60) is relatively heavily contaminated, and as it moves toward the rear end, less contaminated washing water falls into the washing water tank (60) and is collected.

[0027] Therefore, the highly contaminated washing water is always sprayed at the front end of the long fiber yarn (100) being transported, and the relatively less contaminated washing water is sprayed sequentially as it moves toward the rear end, so that as the long fiber yarn (100) is washed and discharged to the drying roller (31)(41), the washing water is gradually sprayed with less contaminated washing water as it moves toward the direction of transport of the long fiber yarn (100), and finally, the cleanest washing water is sprayed through the washing water sprayer (50) so that the washing of the long fiber yarn (100) can be completed.

[0028] To this end, the second roller (40) may be equipped with a partition (64) to prevent the washing water that is heavily contaminated from being used for washing the front end of the long fiber yarn (100) from falling into the chamber (63) where the washing water that is less contaminated from being used for washing the rear end is collected, thereby preventing them from mixing with each other.

[0029] A plurality of partitions (42) are installed on the outer surface of the second roller (40) in a protruding shape, and the partitions (42) are installed at regular intervals so that the long fiber yarn (100) can be positioned and transported in the transport space (45) between the partitions (42).

[0030] Referring to FIG. 2, the detailed configuration of the partition wall (42) installed on the second roller (40) and the washing tank (60) is explained.

[0031] The partition wall (42) installed on the second roller (40) is installed at predetermined intervals with a transfer space (45) through which the central long fiber yarn (100) can be transferred, and the partition wall (42) can be formed up to the position where the drying roller (41) is installed.

[0032] Washing water sprayed from the upper part of the first roller (30) through the washing water sprayer (50) or spray nozzle (62) flows down through the first roller (30) to wash the long fiber yarn (100), and the falling washing water flows through the second roller (40) to wash the long fiber yarn (100) again.

[0033] At this time, as the long fiber yarn (100) is positioned in the transfer space (45) between the partitions (42) formed on the second roller (40), the washing water for washing the long fiber yarn (100) flows along the partitions (42) and washes the long fiber yarn (100).

[0034] The washing water used to wash the long fiber yarn (100) falls to the lower part of the second roller (40) and is collected in the washing water tank (60). At this time, the washing water with different contamination states is separated by a partition wall (42) so that it does not fall into the same chamber (63) of the washing water tank (60).

[0035] Preferably, it serves to block heavily contaminated wash water from falling into the chamber (63) where relatively less contaminated wash water is collected.

[0036] To this end, a plurality of partitions (42) are formed in a protruding shape on the second roller (40), and each of the plurality of partitions (42) is composed of a pair of protrusions (43), and a separation groove (44) is formed between the pair of protrusions (43), and the upper part of the partition (64) of the washing tank (60) is positioned in the separation groove (44).

[0037] Due to the combined structure in which the upper part of the partition (64) of the washing tank (60) is located in the separation groove (44), the washing water that washes the long fiber yarn (100) transported through the transport space (45) and falls downward does not go over the partition wall (42) but falls in a vertical downward direction, so that the washing water is separated and falls into the chambers (63) on the left and right sides based on the partition (64), thereby preventing the washing water from mixing with each other.

[0038] That is, the upper part of the partition (64) of the wash tank (60) is positioned in the separation groove (44) to allow the wash water to fall vertically without mixing with each other, and thus be collected in a certain chamber (63) according to the degree of contamination of the wash water.

[0039] In the present invention, an overflow passage (65) is formed in the partition (64) of the washing water tank (60) where washing water is collected, so that the washing water collected in the washing water tank (60) can be transported by overflowing between the chambers (63) in a direction opposite to the transport direction of the long fiber yarn (100).

[0040] The washing water collected in the washing tank (60) is less contaminated as it moves toward the direction in which the long fiber yarn (100) is transported, and the washing water collected in the multiple chambers (63) is configured to flow by overflowing the partition (64) in the opposite direction to the direction in which the long fiber yarn (100) is transported.

[0041] Among the washing water collected in the washing tank (60), the washing water used to wash the long fiber yarn (100) at the front end is a case where a large amount of solvent is attached to the long fiber yarn (100), so washing water in a heavily contaminated state is collected. As it moves toward the rear end, washing water that is less contaminated is collected in each chamber (63) of the washing tank (60), so that the overflow passage (65) formed in the partition (64) is configured to be formed at a lower height as it moves in the opposite direction to the transport direction of the long fiber yarn (100) so that the contaminated washing water does not flow into the chamber (63) where relatively clean washing water is collected.

[0042] That is, during the process of washing the long fiber yarn (100), relatively contaminated washing water is collected in the chamber (63) installed at the front end of the washing tank (60), and as it moves toward the rear end, clean washing water is collected in the chamber (63) and recirculated for use, so that at the end of washing the long fiber yarn (100), clean washing water is always sprayed and washed, and then immediately transferred to the drying roller (31)(41) for drying.

[0043] FIG. 3 is a diagram illustrating a configuration for washing a plurality of long fiber yarns (100) at once as another embodiment of the present invention.

[0044] In the present invention, a plurality of spinning packages (10) are installed so that a plurality of long fiber yarns (100) are transported by first and second rollers (30) (40) through guide rollers and washed at once, and as an example, four long fiber yarns (100) can be configured to be washed and dried at once.

[0045] Long fiber yarns (100) discharged through multiple spinning packages (10) are washed and dried while passing through first and second rollers (30) (40), and the dried long fiber yarns (100) are configured to be wound by multiple winders (80).

[0046] At this time, an oil coating roll (90) is installed before the long fiber yarn (100) is wound onto the winder (80) so that an oil having lubrication, anti-static, and binding functions can be applied to the surface of the long fiber yarn (100).

[0047] The above emulsion coating roll (90) can be installed in a kiss roll structure.

[0049] Although specific embodiments have been described in the foregoing description of the present invention, various modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the present invention should not be determined by the described embodiments but by the claims and equivalents thereof. Explanation of the symbols

[0050] (10)-- Radiation package (20)-- Coagulation bath (30)-- 1st roller (31)-- Drying roller (40)-- 2nd roller (41)-- Drying roller (42)-- bulkhead (43)-- guide projection (44)-- Separation groove (45)-- Transfer space (50)-- Washing sprayer (60)-- Washing tank (61)-- Circulation pump (62)-- Spray nozzle (63)-- Chamber (64)-- Partition (65)-- Overflow passage (70)-- motor (80)-- Winder (90)-- Emulsion application roll (100)-- Long fiber yarn

Claims

Claim 1 In a washing and drying device for removing solvent from CPVC long fiber yarn, the device comprises: first and second rollers (30) (40) configured as an upper and lower pair to transport the long fiber yarn (100) for washing the solvent used as a spinning solvent for the long fiber yarn (100) that is coagulated and discharged through a spinning package (10) and a coagulation bath (20); drying rollers (31) (41) installed to extend from one side of the first and second rollers (30) (40) so that the long fiber yarn (100) can be continuously dried after being washed; a washing water sprayer (50) installed on one side of the upper part of the first roller (30) to spray washing water onto the long fiber yarn (100); and a washing water tank (60) installed on the lower part of the second roller (40) to remove solvent adhering to the long fiber yarn (100) and collect washing water falling downward. It is composed of a spray nozzle (62) that circulates the washing water collected in the washing tank (60) by a pump and sprays it from the upper part of the first roller (30), and as the long fiber yarn (100) is located in the transfer space (45) between the partitions (42) formed on the second roller (40), the washing water for washing the long fiber yarn (100) flows along between the partitions (42) to wash the long fiber yarn (100), and a plurality of partitions (42) are formed in a protruding form on the second roller (40), each of the plurality of partitions (42) is composed of a pair of protrusions (43), and a separation groove (44) is formed between the pair of protrusions (43), and the upper part of the partition (64) of the washing tank (60) is located in the separation groove (44), and the upper part of the partition (64) of the washing tank (60) is located in the separation groove (44). Due to the combined structure, the washing water that washes the long fiber yarn (100) being transported through the above transport space (45) and falls downward does not go over the partition wall (42) but falls in a vertical downward direction, and the washing water is separated and falls into the left and right chambers (63) based on the partition (64), so that the washing water does not mix with each other and is collected in each chamber (63), and an emulsion coating roll (90) is installed at the front end of the winder (80) and the first and second rollers (30),A washing and drying device for removing solvent from CPVC long fibers, characterized in that the solvent remaining inside and on the surface of the long fiber (100) is completely removed through washing and drying while passing through (40), and an emulsion having lubricating, antistatic, and binding functions is applied to the surface of the long fiber (100) before it is wound onto a winder (80). Claim 2 A washing and drying device for solvent removal of CPVC long fibers, characterized in that, in the first paragraph, a partition (64) of the washing tank (60) has an overflow passage (65) formed therein so that the washing water collected in the washing tank (60) can be transported by overflowing between the chambers (63) in a direction opposite to the transport direction of the long fiber (100). Claim 3 A washing and drying device for solvent removal of CPVC long fibers, characterized in that, in paragraph 2, the overflow passage (65) formed in the partition (64) is configured to be formed at a lower height as it moves in the opposite direction to the transport direction of the long fiber (100). Claim 4 delete Claim 5 A washing and drying device for solvent removal of CPVC long fiber yarns according to claim 1, characterized in that a plurality of spinning packages (10) are installed and a plurality of long fiber yarns (100) are transported by first and second rollers (30) (40) through guide rollers and washed at once.

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