CN110359135B - Recycling method of recycled flowers - Google Patents
Recycling method of recycled flowers Download PDFInfo
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- CN110359135B CN110359135B CN201910626291.8A CN201910626291A CN110359135B CN 110359135 B CN110359135 B CN 110359135B CN 201910626291 A CN201910626291 A CN 201910626291A CN 110359135 B CN110359135 B CN 110359135B
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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
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/72—Arrangements for returning waste to be re-carded
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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
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/76—Stripping or cleaning carding surfaces; Maintaining cleanliness of carding area
- D01G15/82—Arrangements for confining or removing dust, fly or the like
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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
- D01G5/00—Separating, e.g. sorting, fibres
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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
- D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
- D01G9/12—Combinations of opening or cleaning machines
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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
- D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
- D01G9/14—Details of machines or apparatus
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- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
The invention discloses a method for recycling waste flowers, which comprises the steps of sequentially carrying out spark detection, metal removal and dust impurity removal on the waste flowers generated in each process, and then compacting and packaging to obtain waste flower fibers. Specifically, in the recovery process, the waste cotton of each procedure is classified and collected to obtain different types of waste cotton through reasonable cotton conveying pipeline design; and further, grading and recovering the same types of the returned flowers through a multistage fiber separator to obtain the returned flowers with different fiber lengths. According to the invention, through reasonably designing the recovery system and selecting the reasonable recovery and separation device, the waste cotton buds generated in each process in the spinning process are recycled and utilized in a grading manner, so that the problems of raw material waste and yarn defects caused by uneven waste cotton buds quality are solved, the energy consumption is reduced, and the recovery and utilization efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of resource recovery, and particularly relates to a method for recycling spent grains.
Background
The waste cotton fiber refers to leftover materials produced after various working procedures in the process of spinning by adopting cotton fiber. For example: the method comprises the steps of scutching, cotton carding and chopping, drawing, roving and spinning. The disadvantages are that: because the leftover materials are subjected to the spinning process, the strength of the leftover materials is low, and static electricity is easy to generate; and because the fiber length of the leftover materials is short, the short velvet is high, the impurities are more, and the spinnability is poor, the leftover materials are generally directly used as waste products to be treated, and secondary processing is not carried out, so that the cost is increased for the textile industry, and the waste of resources is realized. The existing cotton textile leftover processing flow is that after each doffing, the leftover is manually taken out and put into a cotton return box, or the leftover is collected into the cotton return box through an automatic cotton scraping device and finally manually conveyed to a cotton return room for the next procedure. The existing cotton textile leftover processing flow has the defects of high labor intensity, more labor and low efficiency.
In order to save cost, avoid waste and prevent environmental pollution, some enterprises try to recycle the recycled fibers at present. For example, the invention patent with the application number of CN201510714379.7 discloses a short jute fiber recovery system, which comprises a plurality of groups of combing units, a dust removal unit, a main fan, a condenser, a packing machine and a relay fan, wherein the short jute generated in the carding process of the combing machine is recovered through a dust discharge port and a noil discharge port, the recovery efficiency of the short jute is improved, raw materials are saved, the dust generated in the carding process of the combing machine is collected, the dust content in the air in a production workshop is reduced, and the pollution to the environment is reduced. However, this method has the following disadvantages: (1) only the short ramie generated by the combing unit is recovered, and the noil generated by other procedures is not considered; (2) only the cotton condenser is used for separation and recovery, which causes a great deal of short fiber waste. (3) The method has the advantages that the noil cannot be recycled in a grading manner, so that the quality difference of the noil fiber is large, and the defects of cotton yarns and fabrics are increased easily during recycling.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for recycling the waste cotton, which is used for recycling and utilizing the waste cotton produced in each process step in a grading manner through reasonably designing a recycling system and selecting a reasonable recycling and separating device, so that the problems of raw material waste and yarn flaws caused by uneven waste cotton quality are solved, the energy consumption is reduced, and the recycling efficiency is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the method for recycling the flowery wastes is characterized by comprising the following steps of:
s1, collecting the return sparks generated in each spinning process in the spinning process, carrying out spark detection on the return sparks, immediately stopping the work of the whole system if the spark is generated, and continuing the next operation if no spark is generated;
s2, detecting and recovering the metal in the flowback by adopting a metal removing device;
s3, classifying, separating and packaging the waste flowers generated in each spinning process by adopting a dust filtering device, removing dust from air containing dust, discharging the air, and collecting the dust;
and S4, setting the proportion of the recycled cotton in cotton blending according to the recycled cotton fiber source process obtained by classification and separation.
In steps S1 to S3, the returned cotton is transported in the cotton conveying pipeline by the aid of the cotton conveying fan from the generation to the dust filter.
Further, in steps S1 to S3, the waste cotton generated during the spinning process is collected by a waste cotton discharge port provided in each spinning process, and is sequentially introduced into the metal removing device and the dust filtering device through the cotton conveying pipeline.
Further, in step S1, the spark detection is performed by using a spark detector disposed at the return spark outlet.
Further, the spinning process comprises the processes of opening and picking, cotton carding, combing, drawing, roving and spinning, and the waste cotton generated in each process is transported through a separated cotton transportation pipeline.
Further, when the waste cotton generated in each process is transported to the metal removing device through a separated cotton conveying pipeline, the waste cotton generated in the opening picking, cotton carding and combing processes is intensively fed into a group of metal removing devices for treatment; the return patterns generated in the drawing, roving and spinning processes are intensively treated by the other group of metal removing devices, and then the return patterns and the dust impurities are separated by the two groups of dust filtering devices respectively.
Furthermore, the metal removing device is a magnetic pore plate type metal removing device, and the dust filtering device comprises a honeycomb dust filter, a fiber separator and a fiber compressor which are sequentially connected.
Further, the fiber separator comprises a primary fiber separator and a secondary fiber separator, and is used for grading and separating the cotton waste according to the length of the cotton fibers to obtain the cotton waste with the average fiber length larger than 15mm and the cotton waste with the average fiber length smaller than 15 mm.
Further, the fiber separator also comprises a third-level fiber separator, and the third-level fiber separator is used for further grading and separating the returned flowers with the average length of less than 15mm to obtain the returned flowers with the average fiber length of 5-15 mm and the returned flowers with the average fiber length of less than 5 mm.
Further, the mass proportion of the returned cotton generated in the opening picking, carding and combing processes in the cotton blending process is 3-15% when the returned cotton is separated and recovered; the mass proportion of the cotton blending is 1-8% when the cotton is recycled after the recycling of the recycled cotton generated in the drawing, roving and spinning processes.
Further, the mass proportion of the cotton blending is 3-15% when the cotton is recycled, and the average fiber length is more than 15 mm; the mass proportion of the recycled cotton with the average fiber length of 5-15 mm in the cotton blending is 1% -8%; the fret with the average fiber length of less than 5mm is not reused for spinning, and can be recycled for other fields such as papermaking and the like because the spinnability and the strength of the short fibers are poor.
Preferably, in the lapel produced by the opening picking, carding and combing processes, the mass proportion of the lapel with the average length of more than 15mm in the cotton blending is 8-15%; the mass proportion of the recycled cotton with the average fiber length of 5-15 mm in the cotton blending is 3% -8%; in the cotton waste generated in the drawing, roving and spinning processes, the mass proportion of the cotton waste in cotton blending is 3-10% when the average length of the cotton waste is more than 15 mm; the mass proportion of the cotton blending is 1-5% when the cotton is recycled, wherein the average length of the fibers is 5-15 mm.
Advantageous effects
Compared with the prior art, the method for recycling the recycled flowers has the following beneficial effects:
(1) the invention collects the waste cotton by arranging the waste cotton discharge port in each spinning process, classifies and collects the waste cotton in each process through reasonable cotton conveying pipeline design to obtain different types of waste cotton, and reduces the quality difference of the collected waste cotton, thereby reducing the defects formed when the waste cotton is reused.
(2) The invention carries out grading treatment and collection on the same type of the return flowers by a multistage fiber separator, carries out separation treatment on the return flower fibers according to different lengths, and removes dust impurities such as cotton seed and cotton hull in the return flower fibers to obtain the graded clean return flower fibers.
(3) The invention carries out classification treatment according to different spinning procedures, and because the trash content of different types of the returned flowers is different, the power load of the dust filter device when the returned flowers with less trash content are treated can be reduced, the energy consumption is reduced, and the resource utilization rate is improved.
(4) When the waste cotton waste recycled by classification and grading is recycled, the quantity and the use proportion of the waste cotton waste are controlled according to the waste cotton waste quality grade, the degraded use such as reduction is realized, the normal operation of equipment can be kept, and the defects of semi-finished products, cotton yarns and fabrics can be prevented from being increased.
Drawings
FIG. 1 is a flow chart of a method for recycling the spent grains of the present invention;
FIG. 2 is a flow chart of the waste flower recycling system of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
The method for recycling the returned flowers has the following principle: in the spinning process, the process usually comprises the working procedures of opening and picking, cotton carding, combing, drawing, roving and spinning, and the waste cotton produced in each working procedure needs to be classified and collected according to different working principles of each spinning working procedure and different impurity content and quality of the waste cotton. In the opening and picking process, the blocky fibers compressed in the cotton bale are loosened into small cotton bundles by the opening and picking combination machine, and 50-60% of impurities in the raw cotton, particularly big impurities such as cotton seeds, sterile seeds and sandy soil, are removed during loosening; the cotton carding process is mainly to thoroughly decompose fiber bundles into single fibers and remove fine impurities such as fibrous impurities with strong adhesion remained in the single fibers; the combing process is used to remove impurities and short and coarse fibers from the fibers. Therefore, the content of the foreign matters in the waste cotton generated in the opening and picking, cotton carding and combing processes is high, the waste cotton generated in the three processes is treated in a centralized manner, and the power required by the dust filtering device is high when the dust filtering device is used for separating fibers and dust. The content of the cotton waste generated in the drawing, roving and spinning processes is obviously reduced, but the fiber damage degree is increased and the spinnability is reduced due to repeated striking of the fiber in multiple processes, the cotton waste generated in the three processes is intensively treated, the required power can be properly reduced when the dust filter separates the fiber from the dust, and the content of the collected cotton waste in cotton blending can be reduced when the collected cotton waste is reused, so that the reasonable utilization is realized.
According to the method, the waste cotton is classified and graded and recycled according to the fact that the waste cotton has various impurity types and pollutant contents, contains a large amount of coarse sand heads, waste silk heads, steel wire rings, paper scraps, rags and the like, and the content of short fibers and harmful fibers in the waste cotton is large, and the difference is large, and when the waste cotton is recycled, the quantity and the use proportion of the waste cotton are controlled according to the quality grade of the waste cotton, so that degraded use such as reduction is realized, normal operation of equipment can be maintained, and defects of semi-products, cotton yarns and fabrics can be prevented from being increased.
The fiber separator is used for grading and separating the returned flowers, when the first-stage fiber separator, the second-stage fiber separator and the third-stage fiber separator which are connected in sequence are adopted, the mesh diameter of the fiber separator is reduced in sequence, the returned flowers with the average fiber length larger than 15mm, the returned flowers with the average fiber length of 5-15 mm and the returned flowers with the average fiber length smaller than 5mm are separated and recovered in sequence, and the returned flowers separated by each stage of fiber separator are compacted and packaged through the fiber compactor.
The cotton waste belongs to reuse cotton, the fiber length and the strength of the cotton waste are lower than those of raw cotton, and the spinnability is poor, so that the cotton waste needs to be matched with the raw cotton for use during reuse, and the proportion of the cotton waste in cotton matching is strictly controlled. When cotton is matched, the indexes of the cotton waste fibers needing to be considered by using cotton waste mainly comprise length indexes and strength indexes. The length index comprises an average length, a length uniformity index and a short fiber index, wherein the higher the average length and the length uniformity index is, the lower the short fiber index is, and the higher the spinnability is. Therefore, the method adopts the multistage fiber separator to recover the cotton waste in a grading way, the average length and the length uniformity index of each level of the recycled cotton waste fiber obtained by recovery are higher, the short fiber index is obviously reduced, the proportion in cotton blending can be controlled in a targeted way according to the length level of the cotton waste fiber, and the reasonable and efficient utilization of the cotton waste is realized.
Secondly, the invention has different strength indexes of the recycled cotton waste according to different working procedures, and the broken strength of the cotton waste after more working procedures is reduced due to multiple times of striking, so that the proportion in cotton blending is properly reduced during recycling to ensure the smooth running of the spinning process and the high quality of the yarn.
Based on the above, in the lapel produced by the opening picking, carding and combing processes, the mass proportion of the lapel with the average length of more than 15mm in the cotton blending is preferably 8-15%; the mass proportion of the recycled cotton with the average fiber length of 5-15 mm in the cotton blending is preferably 3% -8%; in the cotton waste generated in the drawing, roving and spinning processes, the mass proportion of the cotton waste in cotton blending is preferably 3-10% when the average length of the cotton waste is more than 15 mm; the mass proportion of the cotton blending is preferably 1-5% when the cotton is recycled, wherein the average length of the fibers is 5-15 mm.
Example 1
A method for recycling waste cotton comprises a waste cotton discharge port, a cotton conveying pipeline, a cotton conveying fan, a spark detector, a metal remover and a dust filtering device, wherein the waste cotton discharge port is arranged on spinning equipment of each spinning process, the cotton conveying fan, the spark detector, the metal remover and the dust filtering device are connected in sequence through the cotton conveying pipeline, and a flow chart of the method for recycling the waste cotton is shown in figure 1 and comprises the following steps:
s1, collecting the return sparks generated in each spinning process in the spinning process, carrying out spark detection on the return sparks, immediately stopping the work of the whole system if the spark is generated, and continuing the next operation if no spark is generated;
s2, detecting and recovering the metal in the flowback by adopting a metal removing device;
s3, classifying, separating and packaging the waste flowers generated in each spinning process by adopting a dust filtering device, removing dust from air containing dust, discharging the air, and collecting the dust;
and S4, setting the proportion of the recycled cotton in cotton blending according to the recycled cotton fiber source process obtained by classification and separation.
In steps S1 to S3, the returned cotton is transported in the cotton conveying pipeline by the aid of the cotton conveying fan from the generation to the dust filter.
Further, in step S1, the spark detection is performed by using a spark detector disposed at the discharge port of the waste yarn, so as to prevent the waste yarn from causing a threat to the safety of the spinning equipment and personnel due to the generation of spark, which causes a serious property loss and a safety accident.
Further, the spinning process comprises the processes of opening and picking, cotton carding, combing, drawing, roving and spinning, and the waste cotton generated in each process is transported through a separated cotton transportation pipeline.
As shown in fig. 2, when the lappings generated in each process are transported to the metal removing device through a separated cotton conveying pipeline, the lappings generated in the opening picking, carding and combing processes are concentrated into a group of metal removing devices for treatment; the return patterns generated in the drawing, roving and spinning processes are intensively treated by the other group of metal removing devices, and then the return patterns and the dust impurities are separated by the two groups of dust filtering devices respectively.
Furthermore, the waste cotton generated in the opening and picking, cotton carding, combing, drawing, roving and spinning processes needs a cotton conveying fan to assist the waste cotton to be conveyed in a cotton conveying pipeline, so that the waste cotton generated in different processes can be classified, recycled and utilized.
Furthermore, the metal removing device is a magnetic pore plate type metal removing device, and metal dust such as metal threading needles and the like falling off from the flowers are recovered through the metal removing device, so that the metal dust is prevented from damaging a subsequent separation and recovery device or a human body.
Furthermore, the dust filtering device comprises a honeycomb dust filter, a fiber separator and a fiber compressor which are sequentially connected, wherein the honeycomb dust filter is used for separating the returned flowers, dust impurities and dust, the fiber separator is used for carrying out classification separation on the returned flowers, and the fiber compressor is used for compacting and packaging the separated returned flowers.
Further, the mass proportion of the returned cotton generated in the opening picking, carding and combing processes in the cotton blending process is 3-15% when the returned cotton is separated and recovered; the mass proportion of the cotton blending is 1-8% when the cotton is recycled after the recycling of the recycled cotton generated in the drawing, roving and spinning processes.
Example 2
A method for recycling the flowered waste adopts a flowered waste classified recycling system which is the same as that in the embodiment 1 to recycle the flowered waste, and is different from the method in that the method comprises the following steps:
s1, collecting the waste cotton generated in the processes of opening picking, cotton carding, combing, drawing, roving and spinning in the spinning process through a waste cotton discharge port, carrying out spark detection on the waste cotton, immediately stopping the work of the whole system if spark is generated, and continuing the next operation if no spark is generated;
s2, conveying the cotton waste to a magnetic perforated plate type metal removing device in a cotton conveying pipeline under the action of a cotton conveying fan, wherein the cotton waste generated in the opening and picking, cotton carding and combing processes is intensively treated by a group of metal removing devices; the return flowers generated in the drawing, roving and spinning processes are intensively fed into another group of metal removing devices for treatment;
s3, enabling the waste cotton generated in the opening picking, cotton carding and combing processes to enter a honeycomb dust filter for dust and fiber separation, then sequentially entering a first-stage fiber separator and a second-stage fiber separator, classifying and separating the waste cotton according to the length of the cotton fibers by virtue of different screen mesh apertures of the two-stage fiber separators to obtain the waste cotton with the average fiber length larger than 15mm and the waste cotton with the average fiber length smaller than 15mm, and compressing and packaging the separated waste cotton by adopting a fiber compressor; the separated air containing dust is dedusted and then discharged into the air, and the dust is collected;
grading and separating the cotton waste produced in the drawing, roving and spinning processes by the same method to obtain another group of cotton waste with the average fiber length larger than 15mm and the other group of cotton waste with the average fiber length smaller than 15 mm;
s4, setting the proportion of the recycled cotton in cotton blending according to the recycled fiber source process obtained by classification and separation, wherein the mass proportion of the recycled cotton in the cotton blending is 3-15%, preferably 8-15% when the average fiber length produced in the cotton picking, cotton carding and combing processes is larger than 15 mm; when the cotton is reused, the mass ratio of the cotton in the cotton blending is 1-8%, preferably 3-8%;
when the cotton is recycled, the mass ratio of the recycled cotton in the cotton blending is 3-15%, preferably 3-10% when the average fiber length produced in the drawing, roving and spinning processes is more than 15 mm; when the cotton is reused, the mass ratio of the cotton in the cotton blending is 1-8%, preferably 1-5%.
Example 3
Compared with the embodiment 2, the method for recycling the returned flowers is characterized in that in the step S3, the fiber separators comprise a first-stage fiber separator, a second-stage fiber separator and a third-stage fiber separator which are sequentially connected, the aperture of the through sieve meshes is different, the returned flowers are subjected to classification separation according to the length of cotton fibers, and the returned flowers with the average fiber length larger than 15mm, the returned flowers with the average fiber length of 5-15 mm and the returned flowers with the average fiber length smaller than 5mm are obtained in another group.
In step S4, when the cotton waste is reused and the average length of the fibers generated in the processes of picking, carding and combing is larger than 15mm, the mass ratio in cotton blending is 3-15%; when the cotton is recycled, the mass ratio of the cotton in the cotton blending is 1-8% when the average length of the cotton is 5-15 mm; the waste cotton with average length less than 5mm is not reused in spinning because the spinnability and strength of the short fiber are poor and have no spinnability, and the waste cotton can be recycled for papermaking or used as filler in order to improve the utilization rate of raw materials.
When the cotton is recycled, the mass ratio of the recycled cotton in the cotton blending is 3-15%, preferably 3-10% when the average fiber length produced in the drawing, roving and spinning processes is more than 15 mm; when the cotton waste with the average length of 5-15 mm is recycled, the mass proportion in the cotton blending is 1% -8%, preferably 1% -5%, and the cotton waste with the average length of less than 5mm is not reused for spinning.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. The method for recycling the flowery wastes is characterized by comprising the following steps of:
s1, collecting the waste cotton yarn produced in each spinning procedure in the spinning process, carrying out spark detection on the waste cotton yarn by adopting a spark detector arranged at a waste cotton yarn discharge port, immediately stopping the work of the whole system if spark is produced, and continuing the next operation if no spark is produced;
s2, detecting and recovering the metal in the flowback by adopting a metal removing device;
s3, classifying, separating and packaging the waste flowers generated in each spinning process by adopting a dust filtering device, removing dust from air containing dust, discharging the air, and collecting the dust;
in the steps S1-S3, the returned cotton is conveyed in the cotton conveying pipeline by the aid of the cotton conveying fan from the generation to the entering of the dust filter; the waste cotton waste generated in the spinning process is collected through waste cotton waste discharge ports arranged in each spinning process, and is sequentially introduced into a metal removing device and a dust filtering device through cotton conveying pipelines; the spinning process comprises the steps of opening picking, cotton carding, combing, drawing, roving and spinning, wherein the waste cotton generated in each process is transported through a separated cotton transportation pipeline; when the waste cotton generated in each process is transported to a metal removing device through a separated cotton conveying pipeline, the waste cotton generated in the opening picking, cotton carding and combing processes is intensively fed into a group of metal removing devices for treatment; the method comprises the following steps that the return patterns generated in the drawing, roving and spinning processes are intensively fed into another group of metal removing devices for treatment, and then the return patterns and dust impurities are separated in two groups of dust filtering devices respectively;
the dust filter comprises a honeycomb dust filter, a fiber separator and a fiber compressor which are connected in sequence; the fiber separator comprises a primary fiber separator, a secondary fiber separator and a tertiary fiber separator, and is used for carrying out grading separation on the returned cotton according to the length of cotton fibers to obtain the returned cotton with the average fiber length of more than 15mm, the returned cotton with the average fiber length of 5-15 mm and the returned cotton with the average fiber length of less than 5 mm;
s4, setting the proportion of the recycled cotton in cotton blending according to the recycled cotton fiber source process obtained by classification and separation;
wherein, when the average length of the fibers generated in the processes of cotton picking, cotton carding and combing is more than 15mm, the mass proportion in the cotton blending is 15 percent; when the cotton is recycled, the mass ratio of the cotton in the cotton blending is 8% when the recycled cotton with the average length of 5-15 mm is recycled; the waste flowers with the average length less than 5mm are not reused for spinning;
when the cotton waste produced in the drawing, roving and spinning processes is recycled, the mass proportion of the cotton waste in cotton blending is 10%, wherein the average length of the fibers is more than 15 mm; when the cotton is recycled, the mass ratio of the cotton in the cotton blending is 1-5% when the average length of the cotton is 5-15 mm; the waste flowers with the average length less than 5mm are not reused for spinning.
2. The method for recycling the flowery wastes according to claim 1, wherein the metal removing device is a magnetic orifice plate type metal removing device.
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| "回花使用对成纱质量的影响及应对措施";陈玉峰;《上海纺织科技》;20110918;第39卷(第9期);第52-53、61页 * |
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