CN113481608A

CN113481608A - High-quality cotton linter production method and device suitable for same

Info

Publication number: CN113481608A
Application number: CN202110861356.4A
Authority: CN
Inventors: 崔胜成; 段茂君; 韩远广; 刘建新
Original assignee: Kuitun Taikun Oil Co ltd
Current assignee: Kuitun Taikun Oil Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-10-08

Abstract

The invention discloses a production method of high-quality cotton linters and a device suitable for the production method. The invention improves the existing cotton linter production device by arranging the three-filament removing device, the cylindrical sieve, the wind-driven seed cleaning device, the linter stripping device, the linter collecting device, the shell-linter separating device and the cleaning device, optimizes the process parameters at the same time, and obtains the high-quality cotton linter which has no three filaments and low impurities, sulfuric acid insoluble substances within 8 percent and ash content within 2 percent.

Description

High-quality cotton linter production method and device suitable for same

Technical Field

The invention belongs to the technical field of cotton production, and particularly relates to a production method of high-quality cotton linters and a device suitable for the production method.

Background

The cotton linters are cotton seeds (wool seeds) which are embossed with short fibers left thereon, and the short fibers are stripped off by a delinter. The cotton linters are composed of three parts, the first part is from the longer fibers of the "wool heads", the second part is from the fibers on the wool seeds that are broken by the cotton tying machine, and the third part is a layer of short and dense fibers naturally grown and developed on the cotton seed skin, which is the main component of the cotton linters. The cotton yield of China accounts for about 24% of the total cotton yield in the world, the world is the first, the corresponding cotton linter is large in amount, the cellulose content of the cotton linter is over 90%, and the cotton linter also contains a small amount of pectin (about 1%), wax (about 2%), lignin (2-3%), ash (1%) and the like, and is a high-quality fiber raw material for artificial fibers and the paper industry. The cotton linter fiber is shorter than the lint fiber, but has the same maturity, so the cellulose content is high, and the cotton linter fiber is an important raw material for light and chemical industries such as national defense, textile, chemical fiber, papermaking and the like, and is an important strategic material for the light industry, military industry, chemical industry and medical industry.

The cottonseed is separated by a husking machine, the cottonseed is used for extracting oil, and the remaining shell is the cottonseed shell, also called the cotton skin. Due to different types of husking machines, different varieties of cotton seeds, different production places, different water contents, different sieving degrees of broken cotton seed powder after husking and the like. The processed cottonseed hulls have different sizes, colors, cotton linters and cotton seed powder. At present, after the cottonseed hulls are treated, 15-40% of cotton linters are not recovered, and the cottonseed hulls are mainly used for planting edible fungus raw materials and serving as animal feed raw materials, so that resource waste is caused. Therefore, how to effectively extract the cotton linters in the cottonseed hulls has good economic, social and environmental benefits. How to realize high-value and high-efficiency comprehensive utilization of cottonseed hulls is a problem which needs to be solved urgently.

At present, the quality of the products is poor and the impurity content is high in the domestic production of the cotton linters, the ash content of the cotton linters is more than 2.0 percent, the content of insoluble substances in sulfuric acid is more than 8 percent, the maturity is less than 55 percent, and meanwhile, the quality is not uniform, so that the requirements of producing high-end products can not be met, and the application of the cotton linters is greatly limited. Chinese patent (CN103103841A) optimizes the technological parameters to obtain high-quality cotton linters with ash content of 0.6%, insoluble sulfate 3.5% and maturity of 67%, but based on the existing equipment, there is a limit in optimizing the technological parameters, in order to further reduce the production cost of downstream enterprises, the modification on the basis of the existing equipment can not meet the requirements of producing high-end products on raw materials, therefore, the existing cotton linters production equipment needs to be improved urgently, the production technological parameters are further optimized, the quality of the cotton linters is improved, the production cost is saved for the downstream enterprises, and high-quality raw materials are provided for producing high-end products.

Disclosure of Invention

Aiming at the quality problems that the sulfuric acid insoluble substance of the cotton linters obtained by the existing cotton linters production device and process is more than 8.0 percent, the ash content is more than 2.0 percent, the maturity is less than 55 percent, the cotton linters contain three filaments and the like, the invention aims to provide a production method of high-quality cotton linters and a device suitable for the same. The invention improves the existing cotton linter production device by arranging the three-filament removing device, the cylindrical screen, the wind-driven seed cleaning device, the linter peeling device, the linter collecting device, the shell-linter separating device and the cleaning device, optimizes the process parameters at the same time, obtains the high-quality cotton linter without three filaments and low impurities, sulfuric acid insoluble substances within 8 percent and ash content within 2 percent, and solves the technical problems that the produced cotton linter cannot meet the requirement of producing high-end products due to the problems of poor product quality, large impurities, large sulfuric acid insoluble substances, large ash content, non-uniform maturity, three-filament contained and the like in the production of the cotton linter in the prior art. The production efficiency is greatly improved, the production cost is saved for downstream enterprises, and high-quality raw materials are provided for producing high-end products.

In order to achieve the technical purpose, the invention is realized by the following technical scheme:

the invention specifically provides a production method of high-quality cotton linters, which specifically comprises the following steps:

(1) and (3) removing impurities, stones and dust from the raw material wool cotton seeds of the cotton linters by a three-silk removing device and a drum screen to obtain the wool cotton seeds without impurities.

(2) And (3) sending the obtained impurity-removed cotton seeds into a delinting device for delinting and controlling the impurity content of the cotton linters to obtain the low-impurity cotton linters, wherein the clearance between a saw blade of the delinting device and a seed removing roller is 1.5-1.8mm, and the rotation speed ratio is 1: 100-120.

(3) The low impurity cotton linters are conveyed into a linter collecting device by wind power for dust removal to obtain the dust-removed cotton linters, the aperture of a linter collecting dust cage cylinder is 70-80 meshes, and the rotating speed of the cylinder is 70-90 r/min.

(4) The dedusting cotton linters are sent into the shell-down separating device, so that the linters are effectively separated from impurities, the impurity-removed cotton linters are removed, and the rotating speed of a bar rotor in the shell-down separating device is 180 r/min.

(5) And (3) sending the impurity-removed short cotton velvet into a cleaning device, and further separating the short cotton velvet from impurities to obtain the high-quality short cotton velvet, wherein the rotating speed of a velvet cleaning roller in the cleaning device is 110-130 r/min.

Furthermore, in the production method of the high-quality cotton linters, the clearance between a saw blade and a seed poking roller of a linter stripping device is 1.6mm, and the rotation speed ratio is 1: 110; the aperture of the cylinder of the dust collecting cage is 70 meshes, and the rotating speed of the cylinder is 80 r/min; the rotating speed of the bar rotor in the shell-down separation device is 170 r/min; the rotating speed of the clearer in the cleaning device is 120 r/min.

Meanwhile, the device comprises a three-silk removing device (2), a cylindrical screen (3), a wind-power seed cleaning device (4), a delinting device (5), a fine hair collecting device (6), a shell and fine hair separating device (7) and a cleaning device (8), wherein the three-silk removing device (2) is connected with the cylindrical screen (3), the cylindrical screen (3) is connected with the wind-power seed cleaning device (4), the wind-power seed cleaning device (4) is connected with a spiral conveyor (9), the spiral conveyor (9) is connected with the fine hair removing device (5), the fine hair removing device (5) is connected with the fine hair collecting device (6), the fine hair collecting device (6) is connected with the shell and fine hair separating device (7), the shell and fine hair separating device (7) is connected with the cleaning device (8), and the three-silk removing device (2), the wind-power seed cleaning device (4), the fine hair removing device (5), the fine hair collecting device (6), The shell and velvet separating device (7) and the cleaning device (8) are both electrically connected with a master controller, and the master controller is electrically connected with a master power supply.

The three-wire removing device (2) is provided with a feeding port (1), an upper rotating bar (11) and a lower rotating bar (12) are arranged below the feeding port (1), the three-wire removing device (2) is connected with an inclined communicating pipe (13), the inclined communicating pipe (13) is detachably connected with one end of a cylindrical screen (3), the other end of the cylindrical screen (3) is provided with a first motor (301), a rotor of the first motor (301) is fixedly connected with the cylindrical screen (3), the cylindrical screen (3) is connected with a wind power seed cleaning device (4) below, the wind power seed cleaning device (4) is provided with a feeding port and a discharging port, the cylindrical screen (3) is fixedly connected with the feeding port of the wind power seed cleaning device (4) below, the discharging port of the wind power seed cleaning device (4) is connected with a spiral conveyor (9), a spiral auger (901) is arranged in the spiral conveyor (9), and a shell (904) is arranged outside the spiral conveyor (9), the device is characterized in that one end of the spiral auger (901) is provided with a second motor (903), the other end of the spiral conveyor (9) is connected with the delinting device (5), the delinting device (5) is provided with a feed inlet, a seed poking roller (501), a saw blade (502), a brush roller (503), a seed bare auger (504), an sterile seed auger (505) and a discharge outlet, the other end of the spiral conveyor (9) is connected with the feed inlet of the delinting device (5), the seed poking roller (501) is arranged in the delinting device (5), the saw blade (502) is arranged below the seed poking roller (501), the brush roller (503) is arranged above the right of the saw blade (502), the seed bare seed auger (504) is arranged below the saw blade (502), the sterile seed poking auger (505) is arranged below the brush roller (503), the discharge outlet of the delinting device (5) is connected with the wind power communicating pipe (10), and the wind power communicating pipe (10) is connected with the delinting device (6), the device (6) is provided with a feeding hole, a velvet collecting chamber (601), a velvet collecting dust cage (602), a cotton pulling roller (603), a cotton pulling roller (604) and a discharging hole, the wind power communicating pipe (10) is connected with the feeding hole of the velvet collecting device (6), the velvet collecting dust cage (602) is rotationally arranged on the velvet collecting chamber (601) and is driven to rotate, and the velvet collecting dust cage (602) is of a net type roller structure; the cotton poking roller (603) is rotationally arranged on the down collecting chamber (601); the cotton pulling roller (603) is parallel to the flock collecting dust cage (602), and the cotton pulling roller (604) is rotationally arranged on the flock collecting chamber (601); the cotton pulling roller (604) and the cotton pulling roller (603) are parallel to each other; the discharging port of the down collecting device (6) is connected with a wind power communicating pipe (10), the wind power communicating pipe (10) is connected with the feeding port of a shell and down separating device (7), the shell and down separating device (7) is provided with a bar rotor (701), a tooth plate (702), a screen (705), a feeding port and a discharging port, the wind power communicating pipe (10) is connected with the shell and down separating device (7), the tooth plate (702) is installed on the inner wall of a shell of the shell and down separating device (7), the screen (705) is fixedly installed below the inner wall of the shell and down separating device (7), a material chamber (703) is installed below the screen (705), the material chamber (703) is connected with the communicating pipe (710) and an axial down sucking pipe (704), a bar rotor (701) is arranged in the shell and down separating device (7), a plurality of rotors are installed on a bar rotor (701) shaft, and a plurality of hammer pieces (706) are arranged at the outer edge of the rotors, an axial wind hole (708) is arranged at a position, close to a rotor shaft, of the bar rotor (701), a guide vane (707) is installed on one side of the axial wind hole (708), an axial fluff absorbing hole (709) is arranged at a position, corresponding to the axial wind hole (708), of the rotor on the machine shell, the axial fluff absorbing hole (709) is communicated with an axial fluff absorbing pipe (704) outside the shell (904), a discharge hole of the shell and fluff separating device (7) is connected with a cleaning device (8), the cleaning device (8) is provided with a feed hole, fluff cleaning rollers (801), an impurity removing hole plate (802), a finished product outlet (803) and a impurity outlet (804), the discharge hole of the shell and fluff separating device (7) is connected with the feed hole of the cleaning device (8), a plurality of groups of the fluff cleaning rollers (801) are arranged in the cleaning device (8), the feed hole of the cleaning device (8) and the finished product outlet (803) are matched with the plurality of groups of the fluff cleaning rollers (801) in the cleaning device (8), the cleaning rollers (801) are respectively and correspondingly arranged in the circular cavities, impurity removing pore plates (802) are arranged around the circular cavities in a surrounding mode, and the top surfaces and the bottom surfaces of the cleaning rollers are the impurity removing pore plates (802) and are formed by sealing connection with the surrounding impurity removing pore plates (802).

In the invention, the upper rotating bar and the lower rotating bar are both provided with bar iron teeth, and the lengths of the rotating bar iron teeth are different from 10 cm to 15 cm.

According to the invention, auger iron teeth are welded on the spiral auger shaft, and the length of the auger iron teeth is 3-5 cm.

In the invention, the screen mesh of the cylindrical screen is a cylindrical screen mesh, and the mesh number of the cylindrical screen mesh is larger than the size of the cotton seeds.

After the technical scheme is adopted, the beneficial effects obtained by the invention are as follows:

(1) according to the production method of the high-quality cotton linter and the device suitable for the production method, the three-yarn removing device is improved, the three-yarn removing device is provided with the iron teeth with the rotary bars of different lengths of 10-15cm, and long plastic yarns and long foreign fibers can be effectively removed; the clearance between the saw blade of the delinter and the Writer roll is reduced to 1.5-1.8mm, the cylindrical sieve is additionally arranged, the fluff of the cotton seeds can be stripped to the maximum extent, the optical seed residual fluff is within 4%, the yield of the cotton linters is improved, the breakage rate of the cotton seeds is reduced, the content of sulfuric acid insoluble substances and ash content is further reduced, the quality of the cotton linters is ensured, and the production cost is saved by providing raw materials for high-end products of downstream enterprises.

(2) The invention provides a production method of high-quality cotton linters and a device suitable for the method, wherein a three-filament removing device is arranged for removing three filaments, namely removing one or more of plastic filaments, impurities and foreign body fibers, and a cylindrical sieve is arranged for removing large impurities: plastic bottle, little stone etc. set up wind-force seed cleaning device and be used for removing dust and remove little miscellaneous, obtain the primary election cotton seed, set up screw conveyer transportation wool cotton seed, be used for getting rid of three silks of part fritter, set up the collection fine hair device and remove dust, obtain the cotton linter that removes dust, set up shell fine hair separator and be used for carrying out the fluted roller separation of impurity, three silks and fine hair, obtain removing miscellaneous cotton linter, set up cleaning device and be used for further separating again cotton linter impurity, obtain high-quality cotton linter.

(3) According to the production method of the high-quality cotton linter and the device suitable for the same, the sulfuric acid insoluble substance of the cotton linter obtained by modifying the device and optimizing the process parameters is within 8%, the ash content is within 2%, the maturity is more than 60% of the high-quality cotton linter without three filaments, the high-quality cotton linter can save the production cost for downstream enterprises, and raw materials are provided for producing high-end products.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall process equipment of the present invention;

FIG. 2 is a schematic view of the overall process equipment of the present invention;

FIG. 3 is a schematic view of a rotary bar structure according to the present invention;

FIG. 4 is a schematic view of the spiral auger structure of the present invention;

fig. 5 is a schematic structural view of the dust collecting cage of the present invention.

Reference numerals: 1-a feed inlet, 2-a three-thread removing device, 3-a cylindrical sieve, 301-a first motor, 4-a wind-force seed cleaning device, 5-a delinting device, 501-a seed poking roller, 502-a saw blade, 503-a brush roller, 504-a light seed packing auger, 505-an sterile seed packing auger, 6-a delinting device, 601-a delinting chamber, 602-a delinting dust cage, 603-a cotton poking roller, 604-a cotton poking roller, 7-a shell and velvet separating device, 701-a bar rotor, 702-a dental plate, 703-a material chamber, 704-an axial down suction pipe, 705-a screen mesh, 706-a hammer sheet, 707-a guide blade, 708-an axial wind hole, 709-an axial down suction hole, 710-a communicating pipe, 8-a cleaning device, 801-a cleaning roller, 802-an impurity removing hole plate, 803-finished product outlet, 804-impurity outlet, 9-screw conveyor, 901-screw auger, 902-auger iron teeth, 903-second motor, 904-shell, 10-wind power communicating pipe, 11-upper rotating bar, 1101-bar iron teeth, 12-lower rotating bar and 13-inclined communicating pipe.

Detailed Description

The present invention will be described below with reference to examples, but the present invention is not limited to the following examples.

The equipment components and the like adopted by the invention can be purchased through public channels, and the equipment and instruments adopted in the process are common equipment in the field.

All the materials, reagents and instruments used in the present invention are well known in the art and are not intended to limit the embodiments of the present invention, and other reagents and devices well known in the art may be used in the practice of the following embodiments of the present invention.

The technical solutions of the present invention will be described clearly and completely with reference to fig. 1 to 5, and it is obvious that the described embodiments are some, not all embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention, and furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1: production method of high-quality cotton linters

The embodiment provides a production method of high-quality cotton linters, which comprises the following specific steps:

(2) Sending the obtained cotton seeds without impurities into a delinting device for delinting and controlling the impurity content of the cotton linters to obtain the low-impurity cotton linters, wherein the clearance between a saw blade of the delinting device and a seed poking roller is 1.5-1.8mm, and the rotation speed ratio is 1: 100-120.

Example 2: device suitable for high-quality cotton linter production method

Referring to the attached drawings 1-5 in the specification, the invention provides an integrated device suitable for the high-quality short cotton velvet production method provided by embodiment 1, and the integrated device comprises a three-filament removing device (2), a cylindrical screen (3), a wind-power seed cleaning device (4), a velvet stripping device (5), a velvet collecting device (6), a shell and velvet separating device (7) and a cleaning device (8), wherein the three-filament removing device (2) is connected with the cylindrical screen (3), the cylindrical screen (3) is connected with the wind-power seed cleaning device (4), the wind-power seed cleaning device (4) is connected with a spiral conveyer (9), the spiral conveyer (9) is connected with the velvet stripping device (5), the velvet stripping device (5) is connected with the velvet collecting device (6), the velvet collecting device (6) is connected with the shell and velvet separating device (7), the shell and velvet separating device (7) is connected with the cleaning device (8), and the three-filament removing device (2), the wind-power seed cleaning device (4) and the cleaning device (8), The delinting device (5), the delinting device (6), the shell and fine hair separating device (7) and the cleaning device (8) are electrically connected with a master controller, and the master controller is electrically connected with a master power supply.

Wherein, the upper rotating bar 11 and the lower rotating bar 12 are both provided with bar iron teeth 1101 with different lengths of 10-15cm and used for removing longer plastic wires, long anisotropic fibers and the like; auger iron teeth 902 with the length of 3-5cm are welded on the shaft of the spiral auger 901; the screen cloth of drum sieve 3 is the cylinder screen cloth, and the mesh number of cylinder screen cloth is greater than the size of cottonseed, sets up drum sieve 3 and is used for getting rid of big impurity: plastic bottles, small stones, etc.; the clearance between the seed poking roller 501 and the saw blade 502 of the linter stripping device 5 is 1.5-1.8mm, the rotation speed ratio is 1:100-120, the fluff of the crude cotton seeds can be stripped to the maximum extent, and the broken linter of the bare seeds is within 4 percent; the aperture of the cylinder of the dust collecting cage 602 is 70-80 meshes, and the rotating speed of the cylinder of the dust collecting cage 602 is 70-90 r/min; the rotating speed of the bar rotor 701 in the shell-down separation device 7 is 160-; the rotating speed of the down cleaning roller 801 in the cleaning device 8 is 110-130 r/min.

Example 3: application of device suitable for high-quality cotton linter production method

Referring to the attached drawings 1-5 of the specification, when the device applicable to the method for producing high-quality cotton linters provided by the invention is applied, a main power supply is firstly turned on, at the moment, a main controller is started, when the cotton seeds are fed from a feeding port 1, part of long fibers are firstly wound on an upper rotating rod 11, the cotton seeds and short fibers continuously enter a lower rotating rod 12 downwards, part of long fibers and part of short fibers are further wound on the lower rotating rod 12, one or more of plastic filaments, impurities and foreign body fibers are removed, then, the remaining cotton seeds and short fibers are thrown to a cylindrical screen 3, because the screen of the cylindrical screen 3 is a cylindrical screen, the mesh number of the cylindrical screen is larger than the size of the cotton seeds, the cylindrical screen 3 is driven to rotate under the rotation of a first motor 301, and the cylindrical screen 3 rotates to remove large impurities: plastic bottles, small stones and the like are detachably connected with one end of the cylindrical screen 3 through the inclined communicating pipe 13, so that the large impurities in the cylindrical screen 3 are generated; when the accumulation such as plastic bottles, small stones is more, the inclined communicating pipe 13 and the cylindrical sieve 3 can be disassembled to remove the large impurities inside the cylindrical sieve 3: after cleaning, connecting the inclined communicating pipe 13 with the cylindrical screen 3, enabling the cylindrical screen 3 to enable the impurity-removed cotton seeds to fall into a feeding port of the wind-power seed cleaning device, blowing the dust and light impurities by a fan in the wind-power seed cleaning device through the wind-power seed cleaning device to remove the dust and the light impurities, removing dust and the small impurities, leaving a relatively heavy substance (the cotton seeds) to obtain primary-selected cotton seeds, sending the obtained impurity-removed primary-selected cotton seeds into the delinting device 5 to delinting, delinting the primary-selected cotton seeds through a seed poking roller 501 and a saw blade 502 of the delinting device 5 to obtain cotton linters and cotton seeds, discharging the obtained cotton linters from a discharging port through a brush roller 503, discharging the obtained optical seeds through a discharging port of an optical seed auger 504, and discharging the obtained non-pregnant seeds through a discharging port of an infested seed auger 505, wherein a conveying section of the wind-power seed cleaning device 4 and the delinting device 5 uses a spiral conveyor 9 to convey the cotton linters, part of small three threads are removed by a spiral auger 901 and auger iron teeth 902 of a spiral conveyor 9, then the obtained three-thread removed fluff is conveyed into a fluff collecting device 6 for dust removal through a wind power communicating pipe 10, the fluff collecting device 6 is characterized in that when a negative pressure air suction channel sucks air flow through a fluff collecting dust cage 602, cotton linters are brought into a feeding hole under the action of the air flow, and when the fluff collecting dust cage 602 rotates, the lower part of the fluff collecting dust cage 602 turns to a cotton poking roller 603; cotton linters are attached to a linter collecting dust cage 602, the cotton linters are shifted to a cotton shifting roller 603 from the lower part, the cotton linters are stripped by the cotton shifting roller 603, then the cotton shifting roller 604 and the cotton shifting roller 603 are jointly acted, the cotton linters are compacted and are discharged to a discharge port to obtain the cotton linters with dust removal, the cotton linters which are not stripped by the cotton shifting roller 603 are accumulated below the cotton shifting roller 603 and the cotton shifting roller 604, are accumulated more and can fall downwards to drop into a feeding port, and then continue to enter a linter collecting cavity 601 under the action of wind force, so that equipment blockage cannot be caused. At the moment, the dedusted cotton linters are sent into a shell and linter separating device 7 through a wind power communicating pipe 10, the shell and linter separating device 7 rotates through a bar rotor 701, a hammer sheet 706 and a dental plate 702 are matched with each other to crush cotton seed shells, so that the shell and linter are separated, under the action of strip holes of a screen 705, flaky cotton seed shell scraps and most cotton linters pass through the screen to enter a material chamber 703, and under the auxiliary action of guide vanes 707, other parts of longer cotton linters gathered at the central part of the bar rotor 701 under the action of centrifugal force in rotation enter a material chamber 703 through an axial fluff suction pipe 704 under the action of negative pressure airflow, the longer cotton linters enter the material chamber 703 from an axial wind hole 708, an axial fluff suction hole 709 and the axial fluff suction pipe 704, finally the shell and linters falling from the screen are sent into a cleaning device 8 through the communicating pipe 710 and the wind power communicating pipe 10, and are subjected to tooth roller separation of impurities, three threads and linters through the shell and linter separating device 7 to obtain the impurity-removed cotton linters; finally, the cotton linters after impurity removal are sent into a cleaning device 8, the cleaning device 8 obtains the cotton linters after impurity removal through a plurality of groups of cleaning rollers 801 and impurity removal pore plates 802, the cotton linters after impurity removal through filtration are discharged through a finished product outlet 803, the impurities after filtration are discharged through an impurity outlet 804, and the cleaning device 8 further separates the impurities of the cotton linters to obtain the high-quality cotton linters; the down contained in the impurities cleaned after the working procedures of the shell and down separation device 7 and the cleaning device 8 are mixed with the high-quality cotton linters after sequentially passing through the cylindrical screen 3, the shell and down separation device 7 and the cleaning device 8, so that the obtained sulfuric acid insoluble substance is within 8 percent, the ash content is within 2 percent, the maturity is more than 60 percent, and the high-quality cotton linters without three filaments have wide popularization and application values in the technical field of cotton linters processing.

Example 4: production method of high-quality cotton linters

This example provides a method for producing high-quality cotton linters based on examples 1 to 3, in which the clearance between the saw blade and the seed poking roller of the linter device is 1.6mm, and the rotation speed ratio is 1: 110; the aperture of the cylinder of the dust collecting cage is 70 meshes, and the rotating speed of the cylinder is 80 r/min; the rotating speed of a bar rotor in the shell-down separator is 170 r/min; the rotating speed of the clearer in the clearer is 120 r/min.

Example 5: production method of high-quality cotton linters

This example provides a method for producing high-quality cotton linters based on examples 1 to 3, in which the clearance between the saw blade and the seed poking roller of the linter removing device is 1.5mm, and the rotation speed ratio is 1: 100; the aperture of the cylinder of the dust collecting cage is 70 meshes, and the rotating speed of the cylinder is 70 r/min; the rotating speed of the bar rotor in the shell-down separating device is 160 r/min; the rotating speed of the clearer in the cleaning device is 110 r/min.

Example 6: production method of high-quality cotton linters

This example provides a method for producing high-quality cotton linters based on examples 1 to 3, in which the clearance between the saw blade and the seed poking roller of the linter stripping device is 1.8mm, and the rotation speed ratio is 1: 120; the aperture of the cylinder of the dust collecting cage is 80 meshes, and the rotating speed of the cylinder is 90 r/min; the rotating speed of the bar rotor in the shell-down separating device is 180 r/min; the rotating speed of the clearer in the cleaning device is 130 r/min.

Example 7: production method of high-quality cotton linters

This example provides a method for producing high-quality cotton linters based on examples 1 to 3, in which the clearance between the saw blade and the seed poking roller of the linter device is 1.7mm, and the rotation speed ratio is 1: 110; the aperture of the cylinder of the dust collecting cage is 70 meshes, and the rotating speed of the cylinder is 80 r/min; the rotating speed of the bar rotor in the shell-down separating device is 160 r/min; the rotating speed of the clearer in the cleaning device is 120 r/min.

Example 8: the performance of the high-quality cotton linter produced by the invention is measured

In this example, on the basis of examples 1 to 7, the properties of the cotton linters produced by the method and the apparatus for producing high-quality cotton linters provided by the present invention were measured, and meanwhile, the cotton linters produced by the prior art (control 1) and the cotton linters produced by the production process provided by CN103103841A (control 2) were also tested, and the specific results are shown in table 1.

Table 1: the performance of the cotton linter produced by the method is compared with that of the cotton linter produced by the traditional method

	Ash content/%)	Insoluble matter of sulfuric acid/%)	Degree of maturation/%)	Triple filament content/%)
					Control 1	2.62％	8.32％	48％	0.8％
Control 2	0.60％	3.50％	67％	0.5％
					Example 4	0.56％	2.43％	76％	0％
Example 5	0.61％	3.44％	68％	0％
					Example 6	0.63％	3.06％	68％	0％
Example 7	0.59％	3.02％	67％	0％

As can be seen from the data in Table 1, the cotton linters produced by the method and the device for producing the high-quality cotton linters are obviously superior to those produced by a control group in all aspects of performance, the ash content is within 2 percent, and no three filaments exist. The ash content of the cotton linter obtained by the production method provided by the embodiment 4 is 0.56%, meanwhile, the sulfuric acid insoluble substance is 2.43%, and the maturity is as high as 76%, which shows that the quality of the high-quality cotton linter provided by the invention is remarkably improved in the aspect of the quality of the cotton linter.

Example 9: application of production method provided by the invention in cotton linter production in different regions

In this example, on the basis of example 8, the method for producing high-quality cotton linters and the apparatus suitable for the method provided by the present invention are applied to the production of cotton linters in different regions, and meanwhile, the conditions of production 2 of example 8 are set to produce cotton linters, and the properties of the cotton linters obtained by the two methods are compared, and the specific results are shown in table 2.

Table 2: application of the invention to different cotton varieties

As can be seen from the data in Table 2, the production method of the high-quality cotton linters provided by the invention has better application effect in the production of the cotton linters of different cotton varieties, and the existing production method has larger difference in the production of the cotton linters of different varieties, which indicates that the method provided by the invention has wider adaptability.

The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made while remaining within the scope of the present invention.

Claims

1. The production method of the high-quality cotton linters is characterized by comprising the following steps:

(1) removing impurities, stones and dust from raw material wool cotton seeds of cotton linters by a three-silk removing device and a drum screen to obtain impurity-removed wool cotton seeds;

(2) sending the obtained impurity-removed cotton seeds into a delinting device for delinting and controlling the impurity content of the cotton linters to obtain low-impurity cotton linters, wherein the clearance between a saw blade of the delinting device and a seed removing roller is 1.5-1.8mm, and the rotation speed ratio is 1: 100-120;

(3) conveying the low-impurity cotton linters into a linter collecting device by wind power for dust removal to obtain dust-removed cotton linters, wherein the aperture of a linter collecting dust cage cylinder is 70-80 meshes, and the rotating speed of the cylinder is 70-90 r/min;

(4) sending the dust-removal short cotton velvet into a shell velvet separating device to effectively separate the short velvet from impurities and remove the short cotton velvet, wherein the rotating speed of a bar rotor in the shell velvet separating device is 160-sand 180 r/min;

2. The method for producing high-quality cotton linters according to claim 1, wherein the clearance between the saw blade and the seed poking roller of the linter removing device in the step (2) is 1.6mm, and the rotation speed ratio is 1: 110.

3. The method for producing high-quality cotton linters as claimed in claim 1, wherein the aperture of the cylinder of the dust collecting cage in step (3) is 70 mesh, and the rotation speed of the cylinder is 80 r/min.

4. The method for producing high-quality cotton linters according to claim 1, wherein the rotation speed of the bar rotor in the hull-fluff separation device in the step (4) is 170 r/min.

5. The method for producing high-quality cotton linters according to claim 1, wherein the rotational speed of the linter cleaning roller in the cleaning device of step (5) is 120 r/min.

6. The device suitable for the production method of the high-quality short cotton velvet as claimed in claim 1, characterized by comprising a three-filament removing device (2), a cylindrical screen (3), a wind-power seed cleaning device (4), a velvet stripping device (5), a velvet collecting device (6), a shell velvet separating device (7) and a cleaning device (8), wherein the three-filament removing device (2) is connected with the cylindrical screen (3), the cylindrical screen (3) is connected with the wind-power seed cleaning device (4), the wind-power seed cleaning device (4) is connected with a screw conveyor (9), the screw conveyor (9) is connected with the velvet stripping device (5), the velvet stripping device (5) is connected with the velvet collecting device (6), the velvet collecting device (6) is connected with the shell velvet separating device (7), the shell velvet separating device (7) is connected with the cleaning device (8), the three-filament removing device (2), the wind-power seed cleaning device (4), the velvet stripping device (5), The flock collecting device (6), the shell flock separating device (7) and the cleaning device (8) are electrically connected with a master controller, and the master controller is electrically connected with a master power supply;

7. The device suitable for the production method of the high-quality cotton linters according to claim 6, wherein the upper rotating bar (11) and the lower rotating bar (12) are both provided with bar iron teeth (1101), and the lengths of the rotating bar iron teeth are different from 10 cm to 15 cm.

8. The device suitable for the production method of the high-quality cotton linters according to claim 6, wherein auger iron teeth (902) are welded on a shaft of the spiral auger (901), and the length of the auger iron teeth is 3-5 cm.

9. The apparatus suitable for the production method of the high-quality cotton linters as claimed in claim 6, wherein the screen (705) of the cylindrical screen (3) is a cylindrical screen (705), and the mesh number of the cylindrical screen (705) is larger than the size of the cotton seeds.