CN107419375B - Waste cotton treatment method - Google Patents
Waste cotton treatment method Download PDFInfo
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- CN107419375B CN107419375B CN201710767314.8A CN201710767314A CN107419375B CN 107419375 B CN107419375 B CN 107419375B CN 201710767314 A CN201710767314 A CN 201710767314A CN 107419375 B CN107419375 B CN 107419375B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G21/00—Combinations of machines, apparatus, or processes, e.g. for continuous processing
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
- D01G31/003—Detection and removal of impurities
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Abstract
The invention discloses a waste cotton treatment method, and belongs to the technical field of textiles. The method comprises the following steps: the cotton blending is carried out in a cotton blending machine according to the proportion of waste cotton 15-30%, cotton blending component 16-22% with down length of 16-23mm, raw cotton blending component 18-24% with down length of 23-33mm and raw cotton blending component 32-36% with down length of 33-37mm from a cleaning and carding system, and the waste cotton is treated by a waste cotton recovery system after the cotton blending is finished. The method can recover the noil of the blowing-carding-drawing system through the waste cotton recovery system, the waste cotton treated by the waste cotton recovery system does not contain impurities such as scrap iron and the like, the treated waste cotton is smooth and has white color, the cotton knot number (+ 200) is less than 80, and the evenness value (CVm%) is less than 14, so that the waste cotton can be used as a textile raw material with slightly low quality requirement, and can be directly utilized by a raw cotton treatment system or sold outside.
Description
Technical Field
The invention belongs to the technical field of spinning, and particularly relates to a waste cotton treatment method.
Background
Chemical fibers are generally called fibers which are made of natural or synthetic high molecular substances as raw materials and processed by chemical or physical methods. Because of the different sources of the used high molecular compounds, the high molecular compounds can be classified into artificial fibers using natural high molecular substances as raw materials and synthetic fibers using synthetic high molecular substances as raw materials, which are referred to as chemical fibers for short.
Due to the reduction of cultivated land and the attention of environmental protection, the yield of natural fibers (cotton, hemp, wool and silk) is increasingly restricted, and with the development of society, the living standard of people is improved, and the application of chemical fibers is greatly improved. Although chemical fibers have the characteristics of less impurities, good uniformity and the like compared with natural fibers, doubling and stiff pieces are easily generated in the processing process, and must be removed through impurity removal equipment in the spinning process, otherwise the quality of yarns is affected. The impurity removing equipment in the spinning process removes the doubling and stiff pieces and simultaneously removes some good fibers along with the doubling and stiff pieces, so that the waste of the fibers is caused, and the finished rate of the yarn is influenced. In order to reuse the noil, the invention discloses a method for recycling the waste cotton.
Disclosure of Invention
In order to solve the above problems, embodiments of the present invention provide a waste cotton treatment method, which can recover the noil of the blowing-carding-drawing system through a waste cotton recovery system. The technical scheme is as follows:
the embodiment of the invention provides a waste cotton treatment method, which comprises the following steps: the waste cotton from the cleaning and carding system accounts for 18-30%, the cotton blending component accounts for 16-22% with 16-23mm of down length, the raw cotton blending component accounts for 18-24% with 23-33mm of down length and the raw cotton blending component accounts for 32-36% with 33-37mm of down length are blended in a cotton blending machine, and the waste cotton is treated by a waste cotton recovery system after the cotton blending is finished.
The blowing-carding system comprises a multi-layer round cage dust filter unit, a cotton grabbing machine, a mixed opener, a cotton opener, a raw cotton conveying fan and a raw cotton carding machine which are sequentially connected through pipelines, wherein the multi-layer round cage dust filter unit is connected with the mixed opener and the raw cotton carding machine through pipelines; the opener includes first porcupine opener and second porcupine opener that connect gradually through the pipeline, the hired roughneck of first porcupine opener is nose type hired roughneck, the hired roughneck of second porcupine opener is the comb needle hired roughneck, the dust chamber of first porcupine opener is close to the lower part of hired roughneck one side and the dust chamber of second porcupine opener lower part that is close to hired roughneck one side all is equipped with the one-level dust filter unit intercommunication of noil recovery pipe and multilayer cylinder cage dust filter unit, the dust chamber opposite side of first porcupine opener and the dust chamber opposite side of second porcupine opener all incline to be equipped with the baffle that is used for leading the noil recovery pipe with the noil.
The waste cotton recovery system comprises a cotton distribution machine, a first metal removing device, a first waste cotton conveying fan, a scutcher, a biaxial flow opener, a cotton box feeder, a second metal removing device, a double-cotton box feeder, a second waste cotton conveying fan, a waste cotton carding machine and a dust filtering device, wherein the cotton distribution machine, the first metal removing device, the first waste cotton conveying fan, the scutcher, the biaxial flow opener and the cotton box feeder are sequentially connected through a cotton conveying pipeline; the first metal removing device is a turning plate type separating bin separated through self weight, and the second metal removing device is a pore plate with a magnet block.
The first porcupine opener in the embodiment of the invention is an FA106B type porcupine opener, the second porcupine opener is an FA106A type porcupine opener, the mixed opener is an A305B type mixed opener, the raw cotton carding machine is an FA231 type carding machine, and the multilayer round cage dust filter unit is an LF102A type multilayer round cage dust filter unit.
Furthermore, in the embodiment of the invention, the noil recovery pipe of the first porcupine opener and the noil recovery pipe of the second porcupine opener are both communicated with the upper side wall of the primary dust filter unit of the multi-layer round cage dust filter unit through noil collection pipes, the part of the noil collection pipes, which is introduced into the primary dust filter unit of the multi-layer round cage dust filter unit, is obliquely arranged towards the fiber separator at the front side of the multi-layer round cage dust filter unit, and waste cotton output by the fiber separator is packed to be used as a waste cotton distribution component of the cotton distributor.
Wherein, the first metal removing device in the embodiment of the invention comprises a time delay controller, a metal sensor 1 and a plate turning bin 3 which are sequentially arranged on a cotton conveying pipeline 2 from front to back, the metal inductor 1 is arranged close to the cotton distributor, the plate turnover bin 3 is arranged close to the first cotton waste conveying fan, the cotton carding pipeline 2 is communicated with the front side and the rear side of the upper part of the turning plate bin 3, a partition plate 6 and a rotatable turning plate 5 are arranged in the upper part of the turning plate bin 3, the lower part of the cotton harvester is provided with an observation window 7, the bottom of the cotton harvester is provided with a waste cotton outlet, the waste cotton outlet is provided with a bin door 8 which can be opened and closed, the rotating shaft of the turning plate 5 is arranged along the left-right direction and is driven by a power structure on the turning plate bin 3, the power structure is controlled by a delay controller, the time delay controller is electrically connected with the metal inductor 1, the partition plate 6 is arranged at the adjacent rear part of the turning plate 5 along the front-back direction, and a gap is formed between the rear end of the partition plate and the rear side of the turning plate bin 3 to form a cotton flow channel; the turning plate 5 can rotate to a vertical position from a horizontal position, when the turning plate 5 rotates to the horizontal position, the front end of the turning plate is adjacent to or contacted with the front side of the turning plate bin 3, and then cotton flow passes through the upper part of the turning plate bin 3; when the turning plate 5 rotates to the vertical position, the upper end of the turning plate is contacted with the upper side of the turning plate bin 3 or is adjacent to the upper side of the turning plate bin 3 to seal the upper part of the turning plate bin 3, and then cotton flow passes through a cotton flow channel formed by the lower part of the turning plate bin 3 through the partition plate 6.
The second metal removing device in the embodiment of the invention is an orifice plate obliquely arranged between the cotton outlet of the cotton box feeding machine and the cotton inlet of the double-cotton box feeding machine, and the middle part of the lower side surface of the orifice plate is provided with a magnet block.
The cotton cleaner in the embodiment of the invention is FA112, the biaxial flow opener is FA103, the hopper cotton feeder is FA031, the double hopper cotton feeder is A092, and the waste cotton carding machine is FA 231.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the embodiment of the invention provides a waste cotton treatment method, which can recover the noil of a blowing-carding system through a waste cotton recovery system, the waste cotton treated by the waste cotton recovery system does not contain impurities such as scrap iron and the like, the treated waste cotton is smooth, has pure white color, the nep number (+ 200) is less than 80, and the evenness value (CVm%) is less than 14, can be used as a textile raw material with slightly low quality requirement, and can be directly utilized by a raw cotton treatment system or sold for the outside.
Drawings
FIG. 1 is a schematic block diagram of an blowing-carding system provided by an embodiment of the invention;
FIG. 2 is a schematic block diagram of a waste cotton recovery system provided by an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a cotton opening device provided by the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a multi-layer round cage dust filter unit according to an embodiment of the present invention;
FIG. 5 is a top view of a multi-layer round cage dust filter assembly according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a flap of the first metal removing device according to the embodiment of the present invention in a horizontal position;
fig. 7 is a schematic structural diagram of a flap of the first metal removing device provided in the embodiment of the present invention in a vertical position.
In the figure: 1 metal inductor, 2 cotton conveying pipeline, 3 turning plate bin, 4 bell mouth, 5 turning plates, 6 partition plates, 7 observation window, 8 bin door, 9 control rod, 10 limit sealing structure, 11 first cotton storage box, 12 first cotton outlet, 13 first cotton feeding roller, 14 nose beater, 15 first dust grid, 16 first dust chamber, 17 first baffle, 18 first cotton dropping recovery pipe, 19 first cotton opening box, 20 cotton conveying fan, 21 second cotton storage box, 22 second cotton outlet, 23 second cotton feeding roller, 24 carding needle beater, 25 second dust grid, 26 second dust chamber, 27 second baffle, 28 second cotton dropping recovery pipe, 29 second cotton opening box, 31 shell, 32 primary dust filter unit, 33 secondary dust filter unit, 34 drum type filter cylinder, 35 dust suction pipe, 36 air inlet pipe, 37 fiber separator and 38 cotton dropping collecting pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the invention provides a waste cotton treatment method, which comprises the following steps: cotton blending is carried out in a cotton blending machine according to the proportion that waste cotton accounts for 18-30% of a cleaning and carding system, cotton blending components (short-staple raw cotton with short cotton fiber length or other cotton fibers (such as cotton fibers obtained by outsourcing or other dust filtration systems, such as broken seed cotton, dust removal flowers and the like)) with the cotton fiber length of 16-23mm account for 16-22%, raw cotton blending components (fine cotton, specifically, medium cotton 29 and the like) with the cotton fiber length of 23-33mm account for 18-24% and raw cotton blending components (long-staple raw cotton, specifically, Xinjiang cotton) with the cotton fiber length of 33-37mm account for 32-36%, and the cotton blending is carried out by a waste cotton recovery system after the cotton blending is finished.
Referring to fig. 1 and 3-5, the blowing-carding-drawing system in the embodiment includes a multi-layer round-cage dust filter unit, and a plucker, a mixing opener, a raw cotton conveying fan, a raw cotton carding machine, and the like, which are connected in sequence through pipelines, and the multi-layer round-cage dust filter unit is connected with the mixing opener and the raw cotton carding machine through pipelines. The cotton opener comprises a first porcupine cotton opener and a second porcupine cotton opener which are sequentially connected through a pipeline, and a cotton outlet (a first cotton outlet 12) of the first porcupine cotton opener is connected with a cotton box (a second cotton storage box 21) of the second porcupine cotton opener through a pipeline. The beater of the first porcupine cotton opener is a nose beater (composed of a sawtooth cutter head), and the beater of the second porcupine cotton opener is a comb needle beater (composed of a comb plate). Wherein, the lower part of one side (front side) close to the beater of the dust chamber of the first porcupine opener and the lower part of one side (front side) close to the beater of the dust chamber of the second porcupine opener are both provided with a noil recovery pipe (18, 28) which is communicated with a primary dust filter unit 32 of a multi-layer round cage dust filter unit, and the noil recovery pipe (18, 28) is communicated with the dust chamber and is used for recovering the noil of the dust chamber. Furthermore, baffles (17 and 27) used for guiding the noil to the noil recovery pipe are obliquely arranged on the other side (rear side) of the dust chamber of the first porcupine opener and the other side (rear side) of the dust chamber of the second porcupine opener, the baffles (17 and 27) divide the dust chamber into two cavities from front to back, the burden of a dust filtration system is reduced, and the noil slides to the noil recovery pipe (18 and 28) along the baffles.
Referring to fig. 2 and 6 to 7, the waste cotton recovery system in the present embodiment includes a cotton distributor, a first metal removing device, a first waste cotton conveying fan, a scutcher, a biaxial flow opener, a hopper feeder, a second metal removing device, a double hopper feeder, a second waste cotton conveying fan, a waste cotton carding machine, a dust filter, and the like. Wherein, the waste cotton contains a large amount of impurities, especially scrap iron, and needs to be treated for many times. The dust filtering device is connected with the cotton cleaner, the biaxial flow cotton opener and the waste cotton carding machine through pipelines. The first metal removing device is a plate-turning type separating bin separated by the dead weight and used for removing impurities with large dead weight in the cotton flow, and the second metal removing device is a hole plate with a magnet block and used for further removing scrap iron in the cotton flow. Specifically, the cotton blending machine is provided with at least four cotton blending components which are respectively: the cotton blending component of the waste cotton from the blowing-carding system (recycled short fiber), the cotton blending component of the raw cotton with 16-23mm of the down length, the cotton blending component of the raw cotton with 23-33mm of the down length and the cotton blending component of the raw cotton with 33-37mm of the down length.
The first porcupine opener in the embodiment is an FA106B type porcupine opener, beater parameters are adjusted, and a noil recovery pipe and a baffle are added; the second porcupine opener is an FA106A type porcupine opener, the beater parameters are adjusted, and a noil recovery pipe and a baffle are added; the mixing opener is an A305B type mixing opener, the raw cotton carding machine is an FA231 type carding machine, and the multi-layer round cage dust filter unit is an LF102A type multi-layer round cage dust filter unit.
Further, referring to fig. 3, the first porcupine opener in the embodiment of the present invention includes a first cotton storage tank 11, a first opening tank 19 below the first cotton storage tank 11, a first dust chamber 16 at the bottom of the first opening tank 19, a first cotton feeding roller 13 between the first cotton storage tank 11 and the first opening tank 19, a first cotton outlet 12 at the front side of the first opening tank 19, a first dust grid 15 in the first opening tank 19 and located below the first cotton feeding roller 13, a nose beater 14 in the first dust grid 15, a first noil recovery pipe 18 on the bottom side wall at the front side of the first dust chamber 16, a first baffle 17 obliquely disposed at the rear side of the first dust chamber 16, and the like. Wherein, the first cotton storage box 11 is communicated with the first cotton opening box 19, a first cotton feeding roller 13 is arranged at the position of a communication channel, the first dust grid 15 is communicated with the first cotton outlet 12, the bottom of the first dust grid is positioned above the first dust chamber 16, the first noil recovery pipe 18 is communicated with the first dust chamber 16, and the first baffle 17 is arranged in a way of inclining forwards and downwards. Preferably, the lower end of the first baffle 17 is located adjacent to and behind the first noil recovery duct 18.
Further, referring to fig. 3, the second porcupine opener in the embodiment of the present invention includes a second cotton storage box 21, a second opener box 29 below the second cotton storage box 21, a second dust chamber 26 at the bottom of the second opener box 29, a second feed roller 23 between the second cotton storage box 21 and the second opener box 29, a second cotton outlet 22 at the front side of the second opener box 29, a second dust grid 25 in the second opener box 29 and located below the second feed roller 23, a carding beater 24 in the second dust grid 25, a second noil recovery pipe 28 on the bottom side wall at the front side of the second dust chamber 26, a second baffle 27 inclined at the back side in the second dust chamber 26, and the like. Wherein, the second cotton storage box 21 is communicated with the second cotton opening box 29, a second cotton feeding roller 23 is arranged at the communicating passage, the second dust grid 25 is communicated with the second cotton outlet 22, the bottom of the second dust grid is positioned above the second dust chamber 26, the second noil recovery pipe 28 is communicated with the second dust chamber 26, and the second baffle plate 27 is arranged obliquely forwards and downwards. Preferably, the lower end of the second baffle 27 is located adjacent to and rearward of the second noil recovery duct 28.
Further, referring to fig. 3, a cotton transfer fan 20 is provided on a pipe between the first porcupine opener and the second porcupine opener in the embodiment of the present invention.
Referring to fig. 4 and 5, the multi-layer round cage dust filter unit in the embodiment of the present invention includes a housing 31, a primary dust filter unit 32 in front of the housing 31, a secondary dust filter unit 33 in back of the housing 31, a drum-type filter cartridge 34 in the secondary dust filter unit 33, an air inlet pipe 36 communicated with the primary dust filter unit 32, a dust suction pipe 35 communicated with the secondary dust filter unit 33, and a fiber separator 37 in front of the housing 31 and communicated with the primary dust filter unit 32. Wherein, the primary dust filter unit 32 is a disk pre-separation dust filter, in particular FU 206; the secondary dust filter unit 33 is a multi-layer round cage dust filter, specifically F0261; the drum-type filter cartridge 34 is rotatably arranged in the secondary dust filtering unit 33 in the front-back direction, the dust suction pipe 35 is arranged at the top of the shell 31 and is connected with the cotton mixer and the cotton carding machine through a pipeline, the air inlet pipe 36 is arranged at the top of the shell 31, the fiber separator 37 discharges the recycled noil, and the waste cotton recycling system uses the noil for recycling.
Referring to fig. 3, the noil recovery pipe (first noil recovery pipe 18) of the first porcupine opener and the noil recovery pipe (second noil recovery pipe 28) of the second porcupine opener in the embodiment of the present invention are both communicated with the upper side wall of the primary dust filter unit 32 through the noil collection pipe 38. The part of the noil collecting pipe 38 which is led into the primary dust filter unit 32 is obliquely arranged (namely, is obliquely and forwardly arranged) towards the fiber separator at the front side of the multilayer round cage dust filter unit to form vortex, so that better effect is achieved. Preferably, the location at which noil collection tube 38 opens into primary filter unit 32 is located adjacent the rear of the junction of air inlet tube 36 and primary filter unit 32. And the waste cotton output by the fiber separator is packed and then is used as a waste cotton blending component of a cotton blending machine.
Referring to fig. 6 and 7, the first metal removing device in the embodiment of the present invention includes a time delay controller, and a metal sensor 1 and a flap bin 3, which are sequentially disposed on a cotton conveying pipeline 2 from front to back. Wherein, the metal inductor 1 is arranged close to the cotton distributor, and particularly adopts coil induction; the turning plate bin 3 is arranged close to the first waste cotton conveying fan and is a vertically arranged rectangular bin. Wherein, the cotton carding pipeline 2 is communicated with the front side and the rear side of the upper part of the plate turnover bin 3; preferably, the carding pipeline 2 is communicated with the flap cabin 3 through a bell mouth 4. Wherein, turn over and be equipped with baffle 6 and rotatable board 5 that turns over in 3 upper portions of board storehouse, baffle 6 will turn over and separate from top to bottom in 3 upper portion rear sides in board storehouse, turn over board 5 and can will turn over and separate from top to bottom in 3 upper portion front sides in board storehouse and will turn over board storehouse 3 upper portion front and back and separate. The lower part of the turning plate bin 3 is provided with an observation window 7 (glass window), the bottom of the turning plate bin is provided with a waste cotton outlet for discharging waste cotton, and the waste cotton outlet is rotatably provided with a bin door 8 which can be opened and closed. Wherein, the rotating shaft at the rear end (lower end) of the turning plate 5 is arranged along the left-right direction and is driven by a power structure (a cylinder or a motor and the like) on the turning plate bin 3, the power structure is controlled by a delay controller, the delay controller is electrically connected with the metal inductor 1, the delay time is determined according to the cotton flow speed and the distance between the metal inductor 1 and the turning plate bin 3, and the rotation of the turning plate 5 is controlled before or just after the waste cotton with metal passes through the turning plate bin 3. The baffle 6 is arranged at the adjacent rear part of the turning plate 5 along the front-back direction, can vertically separate the upper part of the turning plate bin 3 with the turning plate 5, and has a gap between the rear end and the rear side of the turning plate bin 3 to form a cotton flow channel. Further, the turning plate 5 can rotate from a horizontal position to a vertical position; referring to fig. 6, when the turning plate 5 rotates to the horizontal position, the front end of the turning plate is adjacent to or in contact with the front side of the turning plate bin 3 to separate the front side of the upper part of the turning plate bin 3 up and down, and then the cotton flow passes through the upper part of the turning plate bin 3 along the turning plate 5; referring to fig. 7, when the turning plate 5 rotates to the vertical position, the upper end (front end) of the turning plate 5 contacts with or is adjacent to the upper side of the turning plate bin 3 to seal the upper part of the turning plate bin 3, then the cotton flow passes through a cotton flow channel formed by the partition plate 6 from the lower part of the turning plate bin 3, the cotton flow speed is reduced in the process and flows downwards, and then the waste cotton with metal falls into the bottom of the turning plate bin 3 due to the self gravity.
The power structure in the embodiment of the invention comprises a cylinder and a swing rod, wherein the cylinder is hinged with a rotating shaft of the turning plate 5 through the swing rod. Further, the cylinder is connected with a pump station (which can be an air compressor) through a pipeline, and the delay controller is electrically connected with the pump station.
Preferably, referring to fig. 6 and 7, the front side and the upper side of the flap magazine 3 in the embodiment of the present invention are provided with a limit sealing structure 10 engaged with the front end (upper end) of the flap 5, and the limit sealing structure 10 is specifically a rubber protrusion provided on the front side and the upper side of the flap magazine 3 for limiting the flap 5 to a horizontal position and a vertical position.
Further, referring to fig. 6 and 7, in the embodiment of the present invention, the front side of the bottom of the flap bin 3 is an arc bottom surface, the rear side thereof is an inclined bottom surface, a waste cotton outlet is arranged at the bottom of the arc bottom surface, a bin door 8 capable of sliding along the arc bottom surface is rotatably arranged on the waste cotton outlet, and the bin door 8 is a triangular structure and has an arc surface with the bottom matched with the arc bottom surface. The rotating shaft of the bin gate 8 is provided with a control rod 9 along the front-back direction, the control rod 9 is arranged outside the turning plate bin 3, and a return spring can be arranged between the rotating shaft of the bin gate 8 and the turning plate bin 3. Control ropes are arranged at the front end and the rear end of the control rod 9 and used for manually controlling the opening and closing of the bin gate 8.
Referring to fig. 6 and 7, in the embodiment of the present invention, the rear end of the partition 6 is disposed obliquely upward (at an angle of 5-10 °), and the distance between the partition and the rear side of the flap bin 3 is 5-10cm, so that the waste cotton does not fall from the cotton flow channel when the flap 5 is horizontal, and the cotton flow passes through the cotton flow channel smoothly when the flap is vertical. The observation window 7 is arranged at the front side of the lower part (left side or right side) of the turning plate bin 3, the rear side of the lower part of the turning plate bin 3 is provided with a magnet block to achieve better effect, and the magnet block is preferably arranged on a side door capable of being opened and closed to facilitate cleaning.
The cotton box feeding machine in the embodiment of the invention is higher than a double-cotton box feeding machine, and particularly, the cotton box feeding machine is arranged on the support and the double-cotton box feeding machine is arranged on the ground. The magnetic orifice plate type metal removing device is an orifice plate which is obliquely arranged between a cotton outlet of the cotton box feeding machine and a cotton inlet of the double-cotton box feeding machine, and a magnet block is arranged in the middle of the lower side surface of the orifice plate. Further, the upper end of the orifice plate is fixed on the hopper feeder and the lower end is hinged with the double hopper feeder so that the orifice plate can slightly vibrate along with the double hopper feeder.
The cotton cleaner in the embodiment is an FA112, the biaxial flow opener is an FA103, the hopper feeder is an FA031, the double hopper feeder is an a092, the waste cotton carding machine is an FA231, and the dust filter device is a multi-layer round cage dust filter unit.
The embodiment of the invention provides a waste cotton treatment method, which can recover the noil of a blowing-carding system through a waste cotton recovery system, the waste cotton treated by the waste cotton recovery system does not contain impurities such as scrap iron and the like, the treated waste cotton is smooth, has pure white color, the nep number (+ 200) is less than 80, and the evenness value (CVm%) is less than 14, can be used as a textile raw material with slightly low quality requirement, and can be directly utilized by a raw cotton treatment system or sold for the outside.
In this embodiment, "first" and "second" only have a distinguishing function, and have no other special meaning.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A method of treating waste cotton, the method comprising: cotton blending is carried out in a cotton blending machine according to the proportion of waste cotton from a cleaning and carding system being 30%, the proportion of cotton blending components with 16-23mm of down length being 16%, the proportion of raw cotton blending components with 23-33mm of down length being 18% and the proportion of raw cotton blending components with 33-37mm of down length being 36%, and the waste cotton is treated by a waste cotton recovery system after the cotton blending is finished;
the blowing-carding system comprises a multilayer round cage dust filter unit, and a plucker, a mixed opener, a cotton opener, a raw cotton conveying fan and a raw cotton carding machine which are sequentially connected through pipelines, wherein the multilayer round cage dust filter unit is connected with the mixed opener and the raw cotton carding machine through pipelines;
the opening device comprises a first porcupine opener and a second porcupine opener which are sequentially connected through a pipeline, the beater of the first porcupine opener is a nose beater, the beater of the second porcupine opener is a comb needle beater, a noil recovery pipe and a primary dust filter unit of a multi-layer round cage dust filter unit are arranged on the lower portion of one side, close to the beater, of a dust chamber of the first porcupine opener and the lower portion of one side, close to the beater, of the dust chamber of the second porcupine opener respectively, and baffles for guiding noil to the noil recovery pipe are obliquely arranged on the other side of the dust chamber of the first porcupine opener and the other side of the dust chamber of the second porcupine opener respectively;
the waste cotton recovery system comprises a cotton distribution machine, a first metal removing device, a first waste cotton conveying fan, a scutcher, a biaxial flow opener, a cotton box feeder, a second metal removing device, a double-cotton box feeder, a second waste cotton conveying fan, a waste cotton carding machine and a dust filter, wherein the cotton distribution machine, the first metal removing device, the first waste cotton conveying fan, the scutcher, the biaxial flow opener and the cotton box feeder are sequentially connected through a cotton conveying pipeline, the second metal removing device is arranged between the cotton box feeder and the double-cotton box feeder, the second waste cotton conveying fan and the waste cotton carding machine are sequentially connected through the cotton conveying pipeline, and the dust filter is connected with the scutcher, the biaxial flow opener and the waste cotton carding machine through pipelines;
the first metal removing device is a turning plate type separating bin separated through self weight, and the second metal removing device is a pore plate with a magnet block.
2. The waste cotton treatment method according to claim 1, wherein the first porcupine opener is FA106B type porcupine opener, the second porcupine opener is FA106A type porcupine opener, the mixer opener is a305B type mixer opener, the cotton carding machine is FA231 type carding machine, and the multi-layer round cage dust filter unit is LF102A type multi-layer round cage dust filter unit.
3. The waste cotton treatment method according to claim 2, wherein the noil recovery pipe of the first porcupine opener and the noil recovery pipe of the second porcupine opener are both communicated with the upper side wall of the primary dust filter unit of the multi-layer round cage dust filter unit through noil collection pipes, the part of the noil collection pipes, which is led into the primary dust filter unit of the multi-layer round cage dust filter unit, is obliquely arranged towards the fiber separator at the front side of the multi-layer round cage dust filter unit, and the waste cotton output by the fiber separator is packed to be used as a waste cotton distribution component of the cotton distributor.
4. The waste cotton treatment method according to claim 1, wherein the first metal removing device comprises a time delay controller, and a metal sensor (1) and a turning plate bin (3) which are sequentially arranged on a cotton conveying pipeline (2) from front to back, the metal sensor (1) is arranged close to a cotton distributor, the turning plate bin (3) is arranged close to a first waste cotton conveying fan, the cotton conveying pipeline (2) is communicated with the front side and the back side of the upper part of the turning plate bin (3), a partition plate (6) and a rotatable turning plate (5) are arranged in the upper part of the turning plate bin (3), an observation window (7) is arranged at the lower part of the turning plate bin, a waste cotton outlet is arranged at the bottom of the turning plate bin, an openable bin door (8) is arranged on the waste cotton outlet, a rotating shaft of the turning plate (5) is arranged along the left-right direction and driven by a power structure on the turning plate bin (3), and the power structure is controlled, the time delay controller is electrically connected with the metal inductor (1), the partition plate (6) is arranged at the adjacent rear part of the turning plate (5) along the front-back direction, and a gap is formed between the rear end of the partition plate and the rear side of the turning plate bin (3) to form a cotton flow channel; the turning plate (5) can rotate to a vertical position from a horizontal position, when the turning plate (5) rotates to the horizontal position, the front end of the turning plate is adjacent to or contacted with the front side of the turning plate bin (3), and then cotton flow passes through the upper part of the turning plate bin (3); when the turning plate (5) rotates to the vertical position, the upper end of the turning plate (5) is contacted with the upper side of the turning plate bin (3) or is adjacent to the upper side of the turning plate bin (3) to seal the upper part of the turning plate bin (3), and then cotton flow passes through a cotton flow channel formed by the partition plate (6) at the lower part of the turning plate bin (3).
5. The waste cotton treatment method according to claim 1, wherein the second metal removing means is an orifice plate obliquely provided between the outlet of the hopper feeder and the inlet of the double hopper feeder, and a magnet is provided at a central portion of a lower side surface of the orifice plate.
6. The waste cotton treatment method according to claim 1, wherein the picker is FA112, the biaxial flow opener is FA103, the hopper feeder is FA031, the double hopper feeder is a092, and the waste cotton carding machine is FA 231.
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| CN110359135B (en) * | 2019-07-11 | 2022-02-01 | 武汉裕大华纺织有限公司 | Recycling method of recycled flowers |
| CN110923860B (en) * | 2019-11-27 | 2024-03-29 | 青岛宏大纺织机械有限责任公司 | Automatic processing method and system for return flowers and return strips |
| CN114457472B (en) * | 2021-12-25 | 2022-09-16 | 佛山市康亚纺织有限公司 | Cotton waste material rescreening recovery system |
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