CN112999783A - Production method of functional chinlon - Google Patents
Production method of functional chinlon Download PDFInfo
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- CN112999783A CN112999783A CN202110358081.2A CN202110358081A CN112999783A CN 112999783 A CN112999783 A CN 112999783A CN 202110358081 A CN202110358081 A CN 202110358081A CN 112999783 A CN112999783 A CN 112999783A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
Abstract
The invention discloses a production method of functional chinlon, which comprises the following steps: the method comprises the following steps of S1 material mixing, S2 melting, S3 dynamic mixing, S4 spinning, S5 air blowing cooling, S6 cluster oiling, S7 winding forming, and production by adopting a double-channel dust remover and an air heat exchanger, wherein air extracted from a master batch dryer is dedusted by the double-channel dust remover to form an air flow A, external air is dedusted by the double-channel dust remover to form an air flow B, the air flow A and the air flow B respectively enter the air heat exchanger for heat exchange, then the air flow A is discharged outwards, and the air flow B is heated and then is sent into the master batch dryer to serve as an air source. The invention has the advantages that: the hot air extracted from the master batch dryer can be filtered out of master batch dust in the air through a double-channel dust remover, so that the influence on the environment is reduced during discharge; the fresh air can improve the purity of the air source, and in the air heat exchanger, the fresh air absorbs the heat in the hot air, so that the power of a subsequent heating device can be reduced, and the energy-saving effect is achieved.
Description
Technical Field
The invention relates to a production method of chemical fibers, in particular to a production method of functional chinlon.
Background
The nylon is a chemical fiber commonly used in life, and is prepared by slicing raw materials, performing processes such as melt extrusion and the like to form nylon fibers. In order to make chinlon have specific functions, functional master batches (such as antibacterial master batches, ultraviolet resistant master batches and the like) are added in spinning production, and the production process is to mix the functional master batches with slices before melt extrusion of a screw extruder and then melt extrusion is carried out together with the slices. The moisture content of the freshly purchased masterbatch is higher, and for storage reasons, the moisture content of the masterbatch affects subsequent spinnability, so that the masterbatch needs to be dried before mixing with the dry slices during production.
Chinese patent ZL2014203269890 masterbatch desicator, 2019203438266 a masterbatch desicator, 2018221029588 a drying tower device that masterbatch adds on line, these patents all disclose the method of drying the masterbatch with hot air, wherein the drying principle of masterbatch and functional masterbatch is the same, therefore can regard as the closest prior art of masterbatch drying, the method that these patents disclose, the hot-blast that blows out from the masterbatch desicator is the straight row form, the masterbatch produces the dust that contact friction and probably produces with equipment part, the straight row is unfavorable for the environment, in addition hot-blast direct discharge is wasted to the heat.
Therefore, improvements are needed.
Disclosure of Invention
The purpose of the invention is: the method can remove dust from hot air blown out from a master batch dryer, and effectively utilize the heat energy of the hot air to achieve the aim of saving energy.
The scheme of the invention is as follows: a production method of functional chinlon comprises the following steps:
s1 mixing: adding the dried slices and the functional master batches dried by the master batch dryer into a mixing device for mixing; the master batch dryer is used for drying the functional master batches by hot air;
melting of S2: the slices mixed by the mixing device and the functional mother granules enter a screw extruder together for melt extrusion to obtain a spinning melt;
s3 dynamic mixing: the spinning melt flows out of the screw extruder and then enters a dynamic mixing device for dynamic mixing;
s4 spinning: conveying the dynamically mixed spinning melt to a spinning box body, and conveying the spinning melt to each spinning assembly through a metering pump for spinning to generate fibers;
s5 air blowing cooling: and (3) adopting a side blowing device to blow and cool the fibers:
s6 bundling and oiling: bundling and oiling fibers;
s7 winding and forming: the tow after oiling is stretched and netted, and is finally wound and formed by a winding machine, and the method is characterized in that: the production is carried out by adopting a double-channel dust remover and an air heat exchanger, during production, air pumped out from the master batch dryer by an exhaust fan is dedusted by one channel of the double-channel dust remover to form an air flow A, external air is dedusted by the other channel of the double-channel dust remover to form an air flow B, the air flow A and the air flow B respectively enter two heat exchange channels of the air heat exchanger for heat exchange, then the air flow A is discharged outwards, the air flow B flows under the action of a blower, and the air flow B is heated by a heating device and then is sent into the master batch dryer to serve as a drying air source.
The further scheme of the invention is as follows:
the functional master batch comprises the following components in parts by weight: slice carrier, functional powder, dispersant, coupling agent, antioxidant, thermal stabilizer (78-80), 18-20, 0.2, 0.1.
The chip carrier is nylon-6 chips, the dispersing agent is polymer wax, the coupling agent is SI900, the antioxidant is B215, and the heat stabilizer is C101.
The functional powder is a phosphorus aromatic polyamide organic amine compound.
The functional powder is a nano silver ion compound.
In the S2 melting step, the heating zones of the screw extruder are 5 in total, wherein the temperature of the first zone is 245-250 ℃, the temperature of the second zone is 250-260 ℃, the temperature of the third zone is 260-268 ℃, the temperature of the fourth zone is 260-268 ℃, and the temperature of the fifth zone is 260-265 ℃; the temperature of a spinning box body in the S4 spinning step is 263-268 ℃; in the S5 air-blowing cooling step, the temperature of cross air-blowing is 18-20 ℃, and the humidity is 65-68%; s6 bundling and oiling: the oil feeding amount is 1.0-1.2%; in the step of S7 winding and forming: the winding speed is 4200-4500 m/min.
Two channels of the double-channel dust remover have the function of online dust removal during production.
The double-channel dust remover comprises a machine shell, and a first filter, a two-way lifting driving device and a second filter which are sequentially arranged in the machine shell from left to right;
the first filter comprises a top plate, an outer wall and an inner wall which are continuous on four sides below the top plate, an inner flanging is arranged on the bottom surface of the outer wall and connected with the bottom of the inner wall, a first filter screen is arranged in the middle of the inner wall, and an air exhaust cavity is formed between the outer wall and the inner wall; the bottom of the inner wall is connected with a dust collecting tank through a collecting hopper; the first filter is provided with a first air inlet pipe and a first air outlet pipe which extend out of the machine shell; an outlet of the first air inlet pipe is arranged on the top plate and is communicated with a space defined by the inner wall, the first air outlet pipe is communicated with the air exhaust cavity, and a first air exhaust fan is arranged on the first air outlet pipe; a first lifting plate is arranged between the inner walls, the bottom surface of the first lifting plate is connected with a first lifting rod, and the first lifting rod penetrates through a first guide pipe on the collecting hopper; four edges of the first lifting plate are provided with grooves, rotating shafts are arranged in the grooves, turning plates penetrate through the rotating shafts, the positions of the rotating shafts on the turning plates are closer to the inner ends of the turning plates, the outer ends of the turning plates are provided with first brushes capable of cleaning the first filter screen, and the tops of the inner ends of the turning plates are provided with L-shaped pieces; the side wall of the groove is provided with a convex rib for preventing the inner end of the turning plate from excessively deflecting; an expanding ring groove is formed at the bottom end of the inner wall;
the filter II comprises an air inlet chamber, an air outlet chamber and a filter screen II arranged between the two chambers; a water tank is arranged at the bottom of the air inlet chamber, a second lifting plate is arranged in the air inlet chamber, a second brush capable of cleaning the second filter screen is arranged at the edge of the second lifting plate, the top surface of the second lifting plate is connected with a second lifting rod, and the second lifting rod penetrates through a second guide pipe positioned on the top surface of the air inlet chamber; the air inlet chamber is connected with a second air inlet pipe extending out of the shell, the air outlet chamber is connected with a second air outlet pipe extending out of the shell, and a second air exhaust fan is arranged on the second air outlet pipe;
the bidirectional lifting driving device comprises a shell, two racks which are oppositely arranged in the shell and move in opposite directions, a gear which is positioned between the two racks and is meshed with the racks and a motor which is positioned outside the shell and is in transmission connection with the gear; the position relation of the two racks is as follows: when one of the two is positioned at the lower left part, the other is positioned at the upper right part; a first through groove is formed in the part below the center line of the left side wall of the shell, and a second through groove is formed in the part above the center line of the right side wall of the shell; the bottom of the first lifting rod is connected with a first cross rod, the first cross rod penetrates through the first through groove and then is connected with the lower end of the rack on the left side, the top of the second lifting rod is connected with a second cross rod, and the second cross rod penetrates through the second cross rod and then is connected with the upper end of the rack on the right side.
The internal surface of two walls all is equipped with about two guide way around the casing, rack, front and back terminal surface all interval are equipped with the wheel, the wheel is located the guide way of corresponding side.
The dust collecting tank and the water tank are exposed out of the machine shell.
Compared with the prior art, the invention has the beneficial effects that: the production is carried out by adopting the double-channel dust remover and the air heat exchanger, the hot air extracted from the master batch dryer can be subjected to dust removal through one channel of the double-channel dust remover, and master batch dust possibly existing in the air is filtered out, so that the influence on the environment is reduced when the master batch dust is discharged at the later stage; the fresh air supplemented from the outside can be dedusted through the other channel of the two-channel deduster, the purity of the air source is improved, and in the air heat exchanger, the hot air extracted from the master batch drier exchanges heat with the filtered fresh air, so that the fresh air effectively absorbs heat in the hot air to improve the temperature, thereby reducing the power of a subsequent heating device, achieving the effect of saving energy and simultaneously ensuring the temperature requirement of the dry air; the hot air extracted from the master batch dryer is finally directly discharged because the master batches are dried to contain certain moisture, and part of heat energy is recycled. The invention adopts the mode of adding functional master batches into the slices for production, can enable the nylon finished product to have specific functions, and is more beneficial to the richness of enterprise varieties.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification:
FIG. 1 is a diagram of the equipment used in the method for producing functional nylon described in example 1;
FIG. 2 is a schematic view showing the construction of a two-channel dust collector in accordance with embodiment 1;
FIG. 3 is a rear view of the two-channel dust collector of embodiment 1;
FIG. 4 is an enlarged view of the left half of FIG. 2;
FIG. 5 is a top view of the first lifter plate;
FIG. 6 is a cross-sectional view of an edge of the lifter plate with the flap in a horizontal position;
figure 7 is a cross-sectional view of an edge of the lift plate with the flap in the slouched condition;
FIG. 8 is a schematic structural view of a bidirectional elevating drive device according to embodiment 2;
FIG. 9 is a schematic view of the second embodiment of the catheter of FIG. 7;
FIG. 10 is an external view of the master batch dryer of example 8;
FIG. 11 is a schematic view of the master batch dryer of example 8;
FIG. 12 is an enlarged view at I of FIG. 11;
reference numbers in the figures: a master batch dryer 101, a mixing device 102, a screw extruder 103, a dynamic mixing device 104, a spinning manifold 105, a side blowing device 106, a winding machine 107, an exhaust fan 108, a blower 109, a heating device 110, a slicing bin 111, a master batch bin 112, a metering screw 113, a double-channel dust remover 114, an air heat exchanger 115 and a machine shell 2;
the device comprises a filter I3, a top plate 301, an outer wall 302, an inner wall 303, an inner flanging 304, a filter screen I305, a suction cavity 306, a collection hopper 307, a dust collection tank 308, an air inlet pipe I309, an air outlet pipe I310, an air suction fan I311, a lifting plate I312, a lifting rod I313, a guide pipe I314, a groove 315, a rotating shaft 316, a turning plate 317, a brush I318, an L-shaped sheet 319, a convex rib 320, an expanding ring groove 321, a valve 322 and a bin gate 323;
the bidirectional lifting driving device 4, a shell 401, racks 402 and 403, a gear 404, a motor 405, a first through groove 406, a second through groove 407, a first cross bar 408, a second cross bar 409, a guide groove 410 and wheels 411;
a second filter 5, an air inlet chamber 501, an air outlet chamber 502, a second filter screen 503, a water tank 504, a second lifting plate 505, a second brush 506, a second lifting rod 507, a second guide pipe 508, a second air inlet pipe 509, a second air outlet pipe 510, a second air exhaust fan 511 and a multi-lip sealing ring 512;
the device comprises a cylinder body 601, a feeding pipe 602, a discharging pipe 603, an air drying hopper 604, a heating hopper 605, a stirring paddle 606, a motor 607, an air hood 608, a bevel 609, an air outlet groove 160, a rod body 611, a conical guider 612, a heating element 613, a material storage cavity 614, an air inlet pipe 615, an air outlet pipe 616, a dust collection hood 617 and a guider 618.
Detailed Description
The invention is further described by way of example with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, the method for producing functional nylon described in this embodiment includes the following steps:
s1 mixing: adding the dried slices and the functional master batches dried by the master batch dryer 101 into a mixing device 102 for mixing; the master batch dryer 101 adopts the prior art, and has a step of drying functional master batches by hot air, such as the technology shown in ZL2014203269890 and 2019203438266 or other existing equipment;
melting of S2: the slices mixed by the mixing device 102 and the functional master grains enter a screw extruder 103 together for melt extrusion to obtain a spinning melt;
s3 dynamic mixing: the spinning melt flows out of the screw extruder 103 and then enters a dynamic mixing device 104 for dynamic mixing;
s4 spinning: conveying the dynamically mixed spinning melt to a spinning box 105, and conveying the dynamically mixed spinning melt to each spinning assembly through a metering pump for spinning to generate fibers;
s5 air blowing cooling: the fibers are cooled by air blowing using a side air blower 106:
s6 bundling and oiling: bundling and oiling fibers;
s7 winding and forming: the oiled tows are stretched and netted and finally wound and formed by a winding machine 107,
wherein, the functional master batch adopts the anti-ultraviolet master batch purchased from the market, and the technological parameters are the same as the conventional anti-ultraviolet fiber production technology.
The method is characterized in that: the production is carried out by adopting a double-channel dust remover 114 and an air heat exchanger 115 (the air heat exchanger 115 is the prior art and is used for exchanging heat between two air flows with different temperatures), during the production, air extracted from the master batch dryer 101 by an exhaust fan 108 is dedusted by one channel of the double-channel dust remover 114 to form an air flow A, external air is dedusted by the other channel of the double-channel dust remover 114 to form an air flow B, the air flow A and the air flow B respectively enter two heat exchange channels of the air heat exchanger 115 for heat exchange, then the air flow A is discharged outwards, the air flow B flows under the action of a blower 109, and the air flow B is heated by a heating device 110 and then is sent into the master batch dryer 101.
The two channels of the dual-channel dust remover 114 have the online dust cleaning function during production, and as shown in fig. 2 and 3, the dual-channel dust remover comprises a machine shell 2, and a first filter 3, a two-way lifting driving device 4 and a second filter 5 which are sequentially arranged in the machine shell 2 from left to right;
as shown in fig. 4, the first filter 3 comprises a top plate 301 and four continuous outer walls 302 and inner walls 303 below the top plate 301, an inner flange 304 is arranged on the bottom surface of the outer wall 302 and connected with the bottom of the inner wall 303, a first filter screen 305 is arranged in the middle of the inner wall 303, and an air suction cavity 306 is formed between the outer wall 302 and the inner wall 303; the bottom of the inner wall 303 is connected with a dust collecting tank 308 through a collecting hopper 307; the first filter 3 is provided with a first air inlet pipe 309 and a first air outlet pipe 310 which extend out of the machine shell 2; an outlet of the first air inlet pipe 309 is arranged on the top plate 301 and is communicated with a space surrounded by the inner wall 303, a first air outlet pipe 310 is communicated with the air pumping cavity 306, and a first air pumping fan 311 is arranged on the first air outlet pipe 310; a first lifting plate 312 is arranged between the inner walls 303, a first lifting rod 313 is connected to the bottom surface of the first lifting plate 312, the first lifting rod 313 penetrates through a first guide pipe 314 positioned on the collecting hopper 307, and the first guide pipe 314 is used for ensuring the stability of the first lifting rod 313 during lifting; as shown in fig. 5 and 6, four edges of the first lifting plate 312 are provided with grooves 315, a rotating shaft 316 is arranged in the grooves 315, a turning plate 317 penetrates through the rotating shaft 316, the position of the rotating shaft 316 on the turning plate 317 is closer to the inner end of the turning plate 317, the outer end of the turning plate 317 is provided with a first brush 318 capable of cleaning the first filter screen 305, and the top of the inner end of the turning plate 317 is provided with an L-shaped piece 319; the side wall of the groove 315 is provided with a convex rib 320 for preventing the inner end of the turning plate 317 from over deflection; an expanding ring groove 321 is arranged at the bottom end of the inner wall 303;
as shown in fig. 2, the second filter 5 comprises an inlet chamber 501, an outlet chamber 502 and a second filter screen 503 arranged between the two chambers; a water tank 504 is arranged at the bottom of the air inlet chamber 501, a second lifting plate 505 is arranged in the air inlet chamber 501, a second brush 506 capable of cleaning the second filter screen 503 is arranged at the edge of the second lifting plate 505, a second lifting rod 507 is connected to the top surface of the second lifting plate 505, the second lifting rod 507 penetrates through a second guide pipe 508 positioned on the top surface of the air inlet chamber 501, and the second guide pipe 508 is used for ensuring the stability of the second lifting rod 507 during lifting; the air inlet chamber 501 is connected with a second air inlet pipe 509 extending out of the machine shell 2, the air outlet chamber 502 is connected with a second air outlet pipe 510 extending out of the machine shell 2, and a second air exhaust fan 511 is arranged on the second air outlet pipe 510;
as shown in fig. 2 and 4, the bidirectional lifting driving device 4 includes a housing 401, two racks 402 and 403 disposed opposite to each other in the housing 401 and moving in opposite directions, a gear 404 located between the two racks 402 and 403 and engaged with the racks 402 and 403, and a motor 405 located outside the housing 2 and in transmission connection with the gear 404; the motor 405 can rotate forward and backward, and the positional relationship between the two racks 402 and 403 is as follows: when one of the two is positioned at the lower left part, the other is positioned at the upper right part; a first through groove 406 is formed in the part below the center line of the left side wall of the shell 401, and a second through groove 407 is formed in the part above the center line of the right side wall of the shell 401; the bottom of the first lifting rod 313 is connected with a first cross rod 408, the first cross rod 408 penetrates through the first through groove 406 and then is connected with the lower end of the left rack 402, the top of the second lifting rod 507 is connected with a second cross rod 409, and the second cross rod 409 penetrates through the second cross rod 409 and then is connected with the upper end of the right rack 403.
The dust tank 308 and the water tank 504 are exposed outside the cabinet 2, which facilitates maintenance of the dust tank 308 and the water tank 504 and removal of foreign materials filtered therein. A valve 322 can be arranged at the joint of the collecting hopper and the dust collecting tank 308, and a bin door 323 can be arranged on the dust collecting tank 308, so that the maintenance is convenient.
The working principle of the two-channel dust remover 114 is as follows: the two channels of the two-channel scrubber 114 are referred to as filter one 3 and filter two 5: hot air (hereinafter, waste heat air) from the master batch dryer passes through a first filter 3, and external fresh air passes through a second filter 5; waste heat air enters the filter I3 from the air inlet pipe I309 and is located between the inner walls 303, at the moment, the lifting plate I312 is located at the bottom of the inner wall 303, the bottom surface is sealed, air flow in the collecting hopper 307 is stable as much as possible, the waste heat air is exhausted outwards after passing through the filter screen I305 and the air exhaust cavity 306 under the action of the air exhaust fan I311, and master batch dust contained in the waste heat air is accumulated on the filter screen I305, so that the purpose of filtering the master batch dust existing in the waste heat air is achieved; in order to ensure the filtering capability and the ventilation capability of the first filter screen 305, the dust on the first filter screen 305 needs to be cleaned regularly, the utilized component is the first lifting plate 312, the dust cleaning process is that the first lifting plate 312 is lifted under the action of the first lifting rod 313, in the lifting process, due to the eccentric arrangement mode of the first lifting plate 317 on the rotating shaft 316, the first lifting plate 317 is in a drooping shape (as shown in fig. 7, the first brush 318 does not exceed the edge of the first lifting rod 313), due to a certain gap (as shown in fig. 5-10 mm) existing between the first lifting plate 317 and the inner wall 303, the first brush 318 cannot be in contact with the first filter screen 305 in the lifting process until the first lifting plate 312 is lifted to the highest position, the L-shaped piece 319 abuts against the top plate 301, under the action of the top plate 301, the L-shaped piece 319 is corrected to the horizontal state, the first lifting plate 317 is horizontal (as shown in fig. 6, the first brush 318 exceeds the edge, the lifting rod I313 drives the lifting plate I312 to move downwards, the turning plate 317 is horizontal in the downward movement process, the brush I318 is in a tension state, the brush I318 brushes off master batch dust attached to the filter screen I305 along with the downward movement of the lifting plate I312, the master batch dust passes through the collecting hopper 307 until the master batch dust falls on the dust collecting tank 308, the turning plate 317 cannot return to a drooping state due to the upward reverse acting force of the brush I318 when the lifting plate I312 moves downwards, until the lifting plate I312 falls in the diameter-expanding ring groove 321 at the lower part of the inner wall 303, the brush I318 is released, the received reverse acting force disappears, the turning plate 317 is in a drooping state again, and the lifting plate I312 plays a bottom sealing effect at the bottom and is convenient for next upward ash; wherein: there is a gap between the edge of the first lifter plate 312 and the inner wall 303, and the requirement of the gap is as follows: when the first lifting plate 312 goes upwards, the brush I318 is not contacted with the inner wall 303 through the drooping turning plate 317, when the first lifting plate 312 goes downwards, the brush I318 is contacted with the inner wall 303 through the horizontal turning plate 317, enough reverse acting force can be provided by the filter screen 139 to prevent the water turning plate 317 from drooping, the gap can be controlled to be 5-10 mm, and the first lifting plate 312 can play a sealing role at the bottom as much as possible during working, so that the air pressure below the first lifting plate 312 is relatively stable.
External fresh air passes through the second filter 5 and enters the second filter through the second air inlet pipe 509, and is exhausted outwards through the second air outlet pipe 510 and the second air exhaust fan 511 after passing through the second air inlet chamber 501, the second filter screen 503 and the second air outlet chamber 502, impurities in the air are filtered out on the second filter screen 503, the second lifting rod 507 can drive the second lifting plate 505 to lift, the second brush 506 at the edge of the second lifting plate 505 can brush dust on the second filter screen 503 down into the water tank 504 for temporary storage in the lifting process, and the dust can be periodically treated in the later period, so that the filtering and ventilating capacities of the second filter screen 503 can be ensured;
the first filter 3 is provided with filter screens on four sides and is matched with waste heat air with large filtering requirements, and the second filter 5 is a single-side filter screen and is matched with fresh air with small filtering requirements; the bidirectional lifting driving device 4 is matched with the dust removing actions of the first filter 3 and the second filter 5 to drive the first lifting rod 313 and the second lifting rod 507 to run in different directions, the second lifting rod 507 rises when the first lifting rod 313 descends, the second lifting rod 507 descends when the first lifting rod 313 ascends, the dust removing actions of the first filter 3 and the second filter 5 can be just matched, and meanwhile, the requirement that the first lifting plate 312 needs to be arranged at the bottom of the inner wall 303 at the working position is also matched. The principle of the bidirectional lifting driving device 4 is as follows: the gear 404 rotates under the action of the motor 405, the gear 404 is meshed with the racks 402 and 403, the racks 402 and 403 are oppositely arranged on two sides of the gear 404, and along with the rotation of the gear 404, the racks 402 and 403 can move towards different directions, so that a working state that the rack 402 drives the lifting plate I312 to move upwards, the rack 403 drives the lifting rod II 507 to move downwards and the rack 402 drives the lifting plate I312 to move downwards and the rack 403 drives the lifting rod II 507 to move upwards is formed, and the dust removal of the filter screen can be completed in one ascending and descending action period of the lifting plate I312 and the lifting rod II 507.
Compared with the prior art, the invention has the beneficial effects that: the production is carried out by adopting the double-channel dust remover 114 and the air heat exchanger 115, the hot air extracted from the master batch dryer can be subjected to dust removal through one channel of the double-channel dust remover 114, master batch dust possibly existing in the air is filtered, and the influence on the environment is reduced when the master batch dust is discharged at the later stage; the externally supplemented fresh air can be dedusted through the other channel of the two-channel deduster 114 to improve the purity of the air source, and the hot air extracted from the master batch drier exchanges heat with the filtered fresh air in the air heat exchanger 115 to ensure that the fresh air effectively absorbs the heat in the hot air to improve the temperature, so that the power of a subsequent heating device can be reduced, the energy-saving effect is achieved, and the temperature requirement of the fresh air is ensured; the hot air extracted from the master batch dryer is dried to contain certain moisture and is finally directly discharged, and part of heat energy is recycled. And the first filter 3 and the second filter 5 which are used as double channels have the function of cleaning dust of the internal filter screen, so that the filtering capacity and the ventilation capacity of the filter can be ensured. The invention adopts the mode of adding functional master batches into the slices for production, can enable the nylon finished product to have specific functions, and is more beneficial to the richness of enterprise varieties.
Example 2
As shown in fig. 8, in the method for producing functional nylon described in this embodiment, in order to make the movement of the racks 402 and 403 more flexible, the difference from embodiment 1 is that: the inner surfaces of the front wall and the rear wall of the shell 401 are provided with a left guide groove 410 and a right guide groove 410, the front end surface and the rear end surface of the racks 402 and 403 are provided with wheels 411 at intervals, and the wheels 411 are arranged in the guide grooves 410 on the corresponding sides.
Thus, the wheels 411 on the front and rear end surfaces of the racks 402 and 403 can roll in the corresponding guide grooves 410, and the racks 402 and 403 can move more flexibly.
Example 3
The production method of the functional chinlon described in the embodiment is different from the embodiment 1 in that: in the S2 melting step, the number of heating zones of the screw extruder 103 is 5, wherein the temperature of the first zone is 245 ℃, the temperature of the second zone is 250 ℃, the temperature of the third zone is 260 ℃, the temperature of the fourth zone is 260 ℃ and the temperature of the fifth zone is 260 ℃; the spinning box temperature in the S4 spinning step is 263 ℃; in the S5 air-blowing cooling step, the temperature of cross air blowing is 18 ℃, and the humidity is 65%; s6 bundling and oiling: the oil feeding amount is 1.0 percent; in the step of S7 winding and forming: the winding speed was 4200 m/min.
The nylon fiber prepared by the embodiment has the advantages of 4.12cN/dtex of breaking strength, 26.9% of elongation at break, 6.3% of coefficient of variation of breaking strength, 9.1% of coefficient of variation of elongation at break, 1.17% of yarn evenness uniformity and good performance.
Example 4
The production method of the functional chinlon described in the embodiment is different from the embodiment 1 in that: in the S2 melting step, the number of heating zones of the screw extruder 103 is 5, wherein the temperature of a first zone is 250 ℃, the temperature of a second zone is 260 ℃, the temperature of a third zone is 268 ℃, the temperature of a fourth zone is 268 ℃, and the temperature of a fifth zone is 265 ℃; the spinning box temperature in the S4 spinning step is 268 ℃; in the S5 air-blowing cooling step, the temperature of cross air blowing is 20 ℃, and the humidity is 68%; s6 bundling and oiling: the oil feeding amount is 1.2%; in the step of S7 winding and forming: the winding speed was 4500 m/min.
The nylon fiber prepared by the embodiment has the advantages of 4.11cN/dtex of breaking strength, 26.8% of elongation at break, 6.3% of coefficient of variation of breaking strength, 9.0% of coefficient of variation of elongation at break, 1.17% of yarn evenness uniformity and good performance.
Example 5
The production method of the functional chinlon described in the embodiment is different from the embodiment 3 in that: the functional master batch is a flame-retardant master batch and comprises the following components in parts by weight: the preparation method comprises the following steps of preparing a slice carrier, namely functional powder, dispersing agent, coupling agent, antioxidant and heat stabilizer =80, 20, 0.2, 0.1, wherein the slice carrier is a chinlon 6 slice, the dispersing agent is high-molecular wax, the coupling agent is SI900, the antioxidant is B215, the heat stabilizer is C101, and the functional powder is a phosphorus aromatic polyamide compound.
The flame-retardant polyamide fiber prepared by the embodiment has the advantages of 4.10cN/dtex of breaking strength, 26.9% of elongation at break, 6.1% of coefficient of variation of breaking strength, 9.2% of coefficient of variation of elongation at break, 1.16% of yarn evenness uniformity and good performance.
The flame-retardant nylon prepared by the method has good flame-retardant property and can be used for producing flame-retardant cloth.
Example 6
The production method of the functional chinlon described in the embodiment is different from the embodiment 4 in that: the functional master batch is an antibacterial master batch and comprises the following components in parts by weight: the carrier comprises a carrier in a slicing mode, a functional powder, a dispersing agent, a coupling agent, an antioxidant, a heat stabilizer =78, 18, 0.2, 0.1.
The chip carrier is nylon-6 chips, the dispersing agent is polymer wax, the coupling agent is SI900, the antioxidant is B215, the heat stabilizer is C101, and the functional powder is a nano silver ion compound.
The antibacterial nylon fiber prepared by the embodiment has the advantages of 4.10cN/dtex of breaking strength, 27.4% of elongation at break, 6.2% of coefficient of variation of breaking strength, 9.0% of coefficient of variation of elongation at break, 1.20% of yarn evenness degree and good performance.
The antibacterial chinlon prepared by the method has good antibacterial performance and can be used for producing antibacterial fabrics.
Example 7
As shown in fig. 9, the difference between the method for producing functional nylon described in this embodiment and embodiment 1 is: a multi-lip sealing ring 512 is arranged on the top surface of the second guide pipe 508 to seal the second lifting rod 507 which can lift up and down.
Example 8
In consideration of the technical problems of long time consumption, low drying efficiency, difficulty in dust discharge and the like of the master batch dryer in the prior art, the company designs a master batch dryer, and the master batch dryer combines the advantages of hot air drying and contact heating to solve the problems in the prior art, and the technology is applied to the production method of the functional nylon described in the patent, so that the production method of the functional nylon described in the embodiment is different from the production method of the embodiment 1 in that: as shown in fig. 10, 11, and 12, the master batch dryer 101 includes a cylinder 601, an air inlet pipe 615, and an air outlet pipe 616, wherein a feed pipe 602 is disposed at the top of the cylinder 601, a discharge pipe 603 is disposed at the bottom of the cylinder 601, a heating bucket 605 and an air drying bucket 604 having air holes are disposed in the cylinder 601, a stirring paddle 606 is disposed in the air drying bucket 604, and a driving shaft of the stirring paddle 606 is in transmission connection with a motor 607 disposed at the top of the cylinder 601; a dust collecting cover 617 is arranged above the air drying bucket 604, the dust collecting cover 617 is connected with an air outlet pipe 616, a fan cover 608 is arranged outside the air drying bucket 604, the fan cover 608 is connected with an air inlet pipe 615, the inner surface of the fan cover 608 is an inclined surface 609 matched with the air drying bucket 604 in shape, an air outlet groove 160 is fully distributed on the inclined surface 609, the heating bucket 605 is positioned below the air drying bucket 604, the upper end surface of the heating bucket 605 is provided with a conical guide 612 through a rod body 611, the lower end surface of the heating bucket 605 is provided with a heating element 613, and the area between the heating bucket 605 and the bottom of the cylinder 601 is the material storage cavity 614; valves are arranged on the inlet pipe 602, the outlet pipe 603, the air inlet pipe 615, the air outlet pipe 616 and the outlet pipes of the air drying bucket 604 and the heating bucket 605.
During production, the master batches in the upper master batch bin 112 enter the master batch dryer 101 through the feeding pipe 602 and fall into the air drying hopper 604, the motor 607 works to drive the stirring paddle 606 to rotate, hot air from the air feeder 109 and the heating device 110 enters the air hood 608 through the air inlet pipe 615 and is blown upwards through the air outlet groove 610 on the inner surface of the air hood 608 to air-dry the stirred master batches in the air drying hopper 604, most of moisture in the master batches is taken away to become waste heat air, the waste heat air is conveyed through the dust collection cover 617 and the air outlet pipe 616 under the action of the exhaust fan 108, and master batch dust generated by stirring is taken away by the air (enters the double-channel dust remover for dust removal), so that the master batch dust is prevented from influencing later spinnability; after the master batch is air-dried by hot air, a valve on an outlet pipe of the air-drying hopper 604 is opened to discharge the master batch in the air-drying hopper 604 downwards, the master batch enters a heating hopper 605 under the distribution action of a conical guider 612, after the master batch is subjected to contact heating in the heating hopper, the master batch is further dried, a valve on an outlet pipe of the heating hopper 605 is opened, the master batch in the heating hopper 605 is stored in a storage cavity 614 (ready to be output downwards at any time), and the dried slices and the master batch can enter a mixing device 102 to be mixed according to a proportion under the action of respective metering screws 113.
In the production method of functional chinlon described in this embodiment, the advantages of hot air drying and heating drying are combined in the process of drying the master batch, and the master batch with higher water content in the initial drying stage can be effectively dried by hot air and discharges moisture; the heating hopper 605 is heated in a contact manner to improve the drying effect, the heat of the heating hopper 605 comes from the heating element 613 on the bottom surface, which can be an electric heating pipe embedded on the bottom surface or heating wires distributed on the bottom surface, and because the heating element 613 is positioned at the top in the material storage cavity 614, the heating element 613 also provides heat for the material storage cavity 614 to heat the air in the material storage cavity 614, so that the material storage cavity 614 has a heat preservation effect, and the dried master batches can be effectively prevented from getting damp, so as to ensure the process requirements, and therefore, the method can further ensure the product quality of the nylon.
The modification of this example is also applicable to examples 2 to 7.
The scope of protection of the patent is not limited to the embodiments described above.
Claims (10)
1. A production method of functional chinlon comprises the following steps:
s1 mixing: adding the dried slices and the functional master batches dried by the master batch dryer (101) into a mixing device (102) for mixing; wherein the master batch dryer (101) is provided with a step of drying the functional master batches by hot air;
melting of S2: the slices mixed by the mixing device (102) and the functional master grains enter a screw extruder (103) together for melt extrusion to obtain a spinning melt;
s3 dynamic mixing: the spinning melt flows out of the screw extruder (103) and then enters a dynamic mixing device (104) for dynamic mixing;
s4 spinning: conveying the dynamically mixed spinning melt to a spinning box body (105), and conveying the spinning melt to each spinning component through a metering pump for spinning to generate fibers;
s5 air blowing cooling: the fibers are cooled by air blowing with a side air blower (106):
s6 bundling and oiling: bundling and oiling fibers;
s7 winding and forming: the filament bundle after oiling is stretched and netted, and finally is wound and formed by a winding machine (107), and the filament bundle oiling machine is characterized in that: the production is carried out by adopting a double-channel dust remover (114) and an air heat exchanger (115), during production, air extracted from the master batch dryer (101) by an exhaust fan (108) is dedusted by one channel of the double-channel dust remover (114) to form an air flow A, external air is dedusted by the other channel of the double-channel dust remover (114) to form an air flow B, the air flow A and the air flow B respectively enter two heat exchange channels of the air heat exchanger (115) for heat exchange, then the air flow A is discharged outwards, the air flow B flows under the action of a blower (109), and the air flow B is heated by a heating device (110) and then is sent into the master batch dryer (101) to serve as a drying air source.
2. The production method of the functional nylon according to claim 1, characterized in that: the functional master batch comprises the following components in parts by weight: slice carrier, functional powder, dispersant, coupling agent, antioxidant, thermal stabilizer (78-80), 18-20, 0.2, 0.1.
3. The production method of the functional nylon according to claim 2, characterized in that: the chip carrier is nylon-6 chips, the dispersing agent is polymer wax, the coupling agent is SI900, the antioxidant is B215, and the heat stabilizer is C101.
4. The production method of the functional nylon according to claim 2, characterized in that: the functional powder is a phosphorus aromatic polyamide organic amine compound.
5. The production method of the functional nylon according to claim 2, characterized in that: the functional powder is a nano silver ion compound.
6. The production method of the functional nylon according to claim 1, characterized in that: in the S2 melting step, the heating zones of the screw extruder (103) are 5 in total, wherein the temperature of the first zone is 245-250 ℃, the temperature of the second zone is 250-260 ℃, the temperature of the third zone is 260-268 ℃, the temperature of the fourth zone is 260-268 ℃, and the temperature of the fifth zone is 260-265 ℃; the temperature of a spinning box body in the S4 spinning step is 263-268 ℃; in the S5 air-blowing cooling step, the temperature of cross air-blowing is 18-20 ℃, and the humidity is 65-68%; s6 bundling and oiling: the oil feeding amount is 1.0-1.2%; in the step of S7 winding and forming: the winding speed is 4200-4500 m/min.
7. The method for producing functional chinlon according to any one of claims 1 to 6, wherein the method comprises the following steps: the two channels of the double-channel dust remover (114) have the function of on-line dust removal during production.
8. The production method of the functional nylon according to claim 7, characterized in that: the dual-channel dust remover (114) comprises a machine shell (2) and a first filter (3), a two-way lifting driving device (4) and a second filter (5) which are sequentially arranged in the machine shell (2) from left to right;
the filter I (3) comprises a top plate (301), an outer wall (302) and an inner wall (303) which are continuous from four sides below the top plate (301), an inner flanging (304) is arranged on the bottom surface of the outer wall (302) and connected with the bottom of the inner wall (303), a filter screen I (305) is arranged in the middle of the inner wall (303), and an air suction cavity (306) is formed between the outer wall (302) and the inner wall (303); the bottom of the inner wall (303) is connected with a dust collecting tank (308) through a collecting hopper (307); the first filter (3) is provided with a first air inlet pipe (309) and a first air outlet pipe (310) which extend out of the machine shell (2); an outlet of the first air inlet pipe (309) is arranged on the top plate (301) and is communicated with a space surrounded by the inner wall (303), the first air outlet pipe (310) is communicated with the air pumping cavity (306), and a first air pumping fan (311) is arranged on the first air outlet pipe (310); a first lifting plate (312) is arranged between the inner walls (303), a first lifting rod (313) is connected to the bottom surface of the first lifting plate (312), and the first lifting rod (313) penetrates through a first guide pipe (314) on the collecting hopper (307); grooves (315) are formed in four edges of the first lifting plate (312), a rotating shaft (316) is arranged in each groove (315), a turning plate (317) penetrates through each rotating shaft (316), the position, on the turning plate (317), of each rotating shaft (316) is closer to the inner end of the turning plate (317), a first brush (318) capable of cleaning the first filter screen (305) is arranged at the outer end of each turning plate (317), and an L-shaped sheet (319) is arranged at the top of the inner end of each turning plate (317); the side wall of the groove (315) is provided with a convex rib (320) for preventing the inner end of the turning plate (317) from over deflection; an expanding ring groove (321) is arranged at the bottom end of the inner wall (303);
the second filter (5) comprises an air inlet chamber (501), an air outlet chamber (502) and a second filter screen (503) arranged between the two chambers; a water tank (504) is arranged at the bottom of the air inlet chamber (501), a second lifting plate (505) is arranged in the air inlet chamber (501), a second brush (506) capable of cleaning the second filter screen (503) is arranged at the edge of the second lifting plate (505), a second lifting rod (507) is connected to the top surface of the second lifting plate (505), and the second lifting rod (507) penetrates through a second guide pipe (508) positioned on the top surface of the air inlet chamber (501); the air inlet chamber (501) is connected with a second air inlet pipe (509) extending out of the shell (2), the air outlet chamber (502) is connected with a second air outlet pipe (510) extending out of the shell (2), and a second air exhaust fan (511) is arranged on the second air outlet pipe (510);
the bidirectional lifting driving device (4) comprises a shell (401), two racks (402, 403) which are oppositely arranged and move in opposite directions in the shell (401), a gear (404) which is positioned between the two racks (402, 403) and is meshed with the racks (402, 403), and a motor (405) which is positioned outside the shell (2) and is in transmission connection with the gear (404); the positional relationship between the two racks (402, 403) is: when one of the two is positioned at the lower left part, the other is positioned at the upper right part; a first through groove (406) is formed in the part below the center line of the left side wall of the shell (401), and a second through groove (407) is formed in the part above the center line of the right side wall of the shell (401); the bottom of the first lifting rod (313) is connected with a first cross rod (408), the first cross rod (408) penetrates through the first through groove (406) and then is connected with the lower end of the left rack (402), the top of the second lifting rod (507) is connected with a second cross rod (409), and the second cross rod (409) penetrates through the second cross rod (409) and then is connected with the upper end of the right rack (403).
9. The method for producing functional nylon according to claim 8, wherein the method comprises the following steps: the inner surfaces of the front wall and the rear wall of the shell (401) are provided with a left guide groove and a right guide groove (410), the front end surface and the rear end surface of the racks (402 and 403) are provided with wheels (411) at intervals, and the wheels (411) are arranged in the guide grooves (410) on the corresponding sides.
10. The method for producing functional nylon according to claim 8, wherein the method comprises the following steps: the dust collecting tank (308) and the water tank (504) are exposed out of the machine shell (2).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199009A (en) * | 2021-12-19 | 2022-03-18 | 苏州市中翼玛机械有限公司 | Efficient drying equipment convenient for heat dissipation for textile processing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862811A (en) * | 2015-04-24 | 2015-08-26 | 浙江美丝邦化纤有限公司 | Functional nylon 6 fiber production method |
| CN106381534A (en) * | 2016-08-31 | 2017-02-08 | 义乌华鼎锦纶股份有限公司 | Preparation method of non-dyeing nylon six-color silk |
| KR20170081913A (en) * | 2016-01-05 | 2017-07-13 | 코웨이 주식회사 | Apparatus for air cleaning and ventilation |
| CN107504798A (en) * | 2017-09-30 | 2017-12-22 | 天津市春夏科技有限公司 | A kind of Masterbatch dries screening plant |
| CN109571852A (en) * | 2018-11-13 | 2019-04-05 | 温州市华伦电器有限公司 | A kind of injection moulding machine |
| CN110260443A (en) * | 2019-06-11 | 2019-09-20 | 安徽金鑫实验设备科技有限公司 | A kind of indoor intelligent ventilating system with air-cleaning function |
| CN210934216U (en) * | 2019-09-29 | 2020-07-07 | 广州艾尔环保工程有限公司 | Dust filter equipment for waste gas |
| CN211435505U (en) * | 2019-12-17 | 2020-09-08 | 安徽同德节能环保科技有限公司 | High-efficient exhaust treatment device of industry environmental protection |
-
2021
- 2021-04-01 CN CN202110358081.2A patent/CN112999783B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862811A (en) * | 2015-04-24 | 2015-08-26 | 浙江美丝邦化纤有限公司 | Functional nylon 6 fiber production method |
| KR20170081913A (en) * | 2016-01-05 | 2017-07-13 | 코웨이 주식회사 | Apparatus for air cleaning and ventilation |
| CN106381534A (en) * | 2016-08-31 | 2017-02-08 | 义乌华鼎锦纶股份有限公司 | Preparation method of non-dyeing nylon six-color silk |
| CN107504798A (en) * | 2017-09-30 | 2017-12-22 | 天津市春夏科技有限公司 | A kind of Masterbatch dries screening plant |
| CN109571852A (en) * | 2018-11-13 | 2019-04-05 | 温州市华伦电器有限公司 | A kind of injection moulding machine |
| CN110260443A (en) * | 2019-06-11 | 2019-09-20 | 安徽金鑫实验设备科技有限公司 | A kind of indoor intelligent ventilating system with air-cleaning function |
| CN210934216U (en) * | 2019-09-29 | 2020-07-07 | 广州艾尔环保工程有限公司 | Dust filter equipment for waste gas |
| CN211435505U (en) * | 2019-12-17 | 2020-09-08 | 安徽同德节能环保科技有限公司 | High-efficient exhaust treatment device of industry environmental protection |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199009A (en) * | 2021-12-19 | 2022-03-18 | 苏州市中翼玛机械有限公司 | Efficient drying equipment convenient for heat dissipation for textile processing |
| CN114199009B (en) * | 2021-12-19 | 2022-11-25 | 苏州市中翼玛机械有限公司 | High-efficient drying equipment is used in textile processing convenient to heat dissipation |
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Denomination of invention: A Production Method for Functional Nylon Effective date of registration: 20230920 Granted publication date: 20220726 Pledgee: Zhejiang Xiaoshan Rural Commercial Bank Co.,Ltd. Guali Branch Pledgor: Zhejiang Fangxin New Material Co.,Ltd. Registration number: Y2023980057592 |