CN113638080A - Electrostatic type seed cotton foreign fiber removing modular device - Google Patents
Electrostatic type seed cotton foreign fiber removing modular device Download PDFInfo
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- CN113638080A CN113638080A CN202110796350.3A CN202110796350A CN113638080A CN 113638080 A CN113638080 A CN 113638080A CN 202110796350 A CN202110796350 A CN 202110796350A CN 113638080 A CN113638080 A CN 113638080A
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 95
- 239000000835 fiber Substances 0.000 title claims abstract description 53
- 230000003068 static effect Effects 0.000 claims abstract description 32
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 239000012535 impurity Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 6
- 238000005247 gettering Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000005685 electric field effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 3
- 230000005686 electrostatic field Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000004040 coloring Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 241000951498 Brachypteraciidae Species 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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Classifications
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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
- D01G9/08—Opening or cleaning fibres, e.g. scutching cotton by means of air draught arrangements
-
- 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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to an electrostatic seed cotton foreign fiber removing modular device which mainly comprises an electrostatic separation part and a foreign fiber removing part. Compared with the prior art, the invention adopts a structure of a double-stage corona electrode and a single-stage static electrode, has the most obvious electric field effect, high residual film charging speed and more charged electricity in short time, thereby greatly improving the effective separation rate of seed cotton and foreign fiber.
Description
Technical Field
The invention relates to the technical field of foreign fiber separation in a mechanical-harvested seed cotton processing link, in particular to an effective separation method for foreign fibers such as mechanical-harvested cotton and residual films by combining an electrostatic technology, and belongs to the field of agricultural machinery.
Background
The seed cotton is cotton with seeds, which is one of the most important crops in the world, and the mechanical cotton picking in China is the mainstream at present. Due to the particularity of mechanical cotton picking, a great amount of foreign fibers mainly comprising mulching films are mixed in the mechanical cotton harvesting process. The existing machine-harvested cotton blowing equipment cannot effectively remove foreign fibers such as residual films and the like, and meanwhile, the residual films are broken and mixed into lint cotton through a plurality of impurity removing processes, the foreign fibers mixed into seed cotton are easy to break into scattered single fibers, and the foreign fibers are difficult to remove in textile processing. During spinning, the scattered single fibers easily break cotton yarns, so that the production efficiency is reduced; during weaving, the quality of the cloth surface is affected; during dyeing, the appearance is affected due to different coloring, and great harm is caused to the quality of cotton yarn and cloth cover. Because of printing and dyeing cotton, cotton yarn, cotton fiber and foreign fiber coloring rate are inconsistent, appear obvious "fault" and color spot when leading to cotton spinning cloth to dye, cause a large amount of wastrel, directly influence normal production order and foreign trade export, foreign fiber's sneaking not only reduces cotton grower's income, to cotton textile enterprise, lead to the cloth fault to increase because of foreign fiber's such as plastic film sneaking into, the dyeing inequality, serious influence the quality of cotton fabrics, caused huge economic loss. The detection and elimination of foreign fibers in cotton become a central problem concerned by the cotton industry in the world, so that the development of an effective device for removing foreign fibers such as mulching films and the like is necessary.
The prior foreign fiber separation device, such as CN201110324521.9, utilizes an electrostatic method to separate foreign fibers, charges the seed cotton in the transportation process on a conveying mesh belt, blows off residual films adhered on the mesh belt by means of wind power in the falling process of the seed cotton separated from the conveying belt, and has high requirements on the working environment and low foreign fiber removal rate. Chinese patent No. CN201610356118.7 adopts multistage conveying mesh belt, cleans foreign fiber through the mode of static, through the tumbling of unginned cotton step by step transmission process between the conveyer belts, increases the area of contact of mesh belt and conveyer belt, has improved foreign fiber and has rejected efficiency. The Chinese patent No. CN201810507439.1 adopts a method of combining airflow and multi-stage drum-type static electricity to remove foreign fibers, the whole device is of a single-channel structure, and the separation efficiency is limited. The Chinese patent No. CN201922074723.7 adopts an electrostatic adsorption type and is a multi-stage channel combined operation, thereby improving the separation efficiency. The electrostatic seed cotton foreign fiber removal modular device is the core of a multichannel machine-harvested seed cotton foreign fiber electrostatic separation device, and has the innovative points that a two-stage corona electrode and static electrode structure is adopted, negative pressure air suction type impurity removal is adopted, foreign fibers mainly comprising a mulching film in machine-harvested cotton can be effectively separated and removed, separation of seed cotton and foreign fibers is achieved under the condition of no damage, and the device can be combined with a subsequent device to be used in a matched mode.
Disclosure of Invention
The invention aims to solve the technical problem of providing a modularized device which has a simple structure, is convenient to use, is not easy to cause seed cotton fiber damage, can effectively remove light foreign fibers such as mulching films and the like in mechanically-harvested seed cotton by adopting an electrostatic adsorption technology, and can be used as a follow-up seed cotton foreign fiber removing device for matching use.
The technical scheme of the invention is as follows: an electrostatic seed cotton foreign fiber removal modular device, comprising: a feeding part, an electrostatic separation part, a foreign fiber removing part and a cotton collecting box (25); the feeding part comprises: a feeding box (1), a wallboard support (2), a feeding box rear support (3) and a cotton dropping plate (16); the electrostatic separation section includes: the device comprises a first-stage corona electrode (17), a second-stage corona electrode (18), a static electrode (19), a grounding roller (14), a high-voltage electrostatic generator (10), an insulating wall plate (4) and a grounding terminal (6); the foreign fiber removing part includes: the impurity suction nozzle (23), the negative pressure impurity suction pipeline (24) and the negative pressure fan;
further: the feeding box (1) is positioned at the uppermost part of the whole machine, the cotton dropping plate (16) is positioned below the feeding box (1), and the upper end of the cotton dropping plate is fixedly connected with the lower end of the feeding box (1); two ends of the side surface of the insulating wall plate are fixed with the insulating wall plate (4); the insulation wallboard is three vertical plate surfaces which are respectively arranged on the left side surface, the right side surface and the rear end surface of the lower end of the feeding box (1), the front ends of the left side surface and the right side surface are fixedly connected with the left end and the right end of the axial wallboard support (2), the upper end surface of the rear end of the insulation wallboard is fixedly connected with the feeding box rear support (3), and the upper end of the feeding box rear support (3) is fixedly connected with the feeding box (1); the lower extreme of insulated wall panel (4) is fixed and is provided with collection hopper (25), collection hopper (25) top left and right sides is provided with the top cap that outwards extends along the lower extreme of insulated wall panel (4).
Further: the high-voltage electrostatic generator (10) is fixed on the outer side of the right end of the insulating wall plate (4) and is positioned at the upper end of a top cover extending outwards from the right end of the cotton collecting box, the high-voltage electrostatic generator (10) is electrically connected with a first-stage corona electrode (17), a second-stage corona electrode (18) and a static electrode (19) through a high-voltage electrostatic lead (9), the first-stage corona electrode (17), the second-stage corona electrode (18) and the static electrode (19) are all arranged at the front end below the cotton dripping plate (16), and the grounding rotating roller (14) is arranged at the rear end below the cotton dripping plate (16); the seed cotton passage channel consists of a first-stage corona electrode (17), a second-stage corona electrode (18), a static electrode (19) and a grounding roller (14) which are positioned at the front end; the cotton dropping plate (16) guides the seed cotton into the channel; two ends of the primary corona electrode (17), the secondary corona electrode (18) and the static electrode (19) are fixedly connected with the insulating wall plate (4); two ends of the grounding rotating roller (14) are connected with the bearing (15) through a central shaft and are horizontally supported at two ends of the insulating wall plate (4).
Further: the primary corona electrode (17) and the secondary corona electrode (18) are respectively distributed at about 20 degrees and 30 degrees above the horizontal plane of the central shaft of the grounding roller (14), and corona discharge pin headers (20) are uniformly arranged on the surfaces of the primary corona electrode (17) and the secondary corona electrode (18); the surface of the grounding roller (14) is provided with a grounding roller net surface (21); the distance between the needle point of the corona discharge pin header (20) and the grounding roller mesh surface (21) is 140-180 mm; the included angle between the plane where the central axes of the static electrode (19) and the grounding rotating roller (14) are positioned and the horizontal plane is Q3Is 10 degrees, and the optimal distance between the surface of the pipe body and the mesh surface (21) of the grounding rotating roller is 180 mm.
Furthermore, the grounding terminal (6) is connected to the outer side of the right end of the insulating wall plate (4) through a fixing nut (5); the negative pressure fan (7) is arranged on the outer side of the right end of the insulating wallboard (4) and is positioned at the lower end of the grounding terminal (6), and the negative pressure fan penetrates through the insulating wallboard (4) and then is tightly connected with the right side of the negative pressure impurity absorbing pipeline (24); the negative pressure impurity absorbing pipeline (24) is located under the grounding rotary roller (14), and an impurity absorbing nozzle (23) is arranged on the negative pressure impurity absorbing pipeline (24) and faces towards the grounding rotary roller net surface (21) and is matched with the grounding rotary roller net surface.
Further: the motor (13) is positioned on the left side of the insulating wall plate (4) and positioned at the upper end of the top cover extending outwards from the left end of the cotton collecting box, a motor shaft is connected with the belt wheel (11) through a belt (12), and the belt wheel (11) is connected with the left end of the central shaft of the grounding rotating roller (14); the rotation of the motor further drives the rotation of the grounding roller (14).
Further: plastic pipes with the diameter of 40mm are uniformly arranged on the outer surfaces of the primary corona electrode (17) and the secondary corona electrode (18), the corona discharge pin header is embedded in the pipe body, and the needle tip is slightly longer than the surface of the pipe body; the static electrode (19) is a metal conductive hollow pipe with the diameter of 40mm, is made of aluminum or copper, and is connected with the high-voltage static generator (10) during working.
Further: the grounding rotating roller (14) is composed of a grounding rotating roller net surface (21) and a grounding rotating roller shaft (22), the grounding rotating roller net surface (21) and the grounding rotating roller shaft (22) are connected through a flange, the grounding rotating roller net surface (21) is a cylindrical cylinder with the diameter of 220mm, the thickness of the galvanized plate with meshes is 1.5mm, and the galvanized plate and the grounding rotating roller shaft (22) are coaxially matched. When the device works, the fixing nut (5) is integrally grounded through the bearing (15); the corona discharge pin header (20) is positioned on the outer surfaces of the first-stage corona electrode (17) and the second-stage corona electrode (18), and the corona discharge pin header (20) is aligned with the central shaft of the grounding roller shaft (22); the high-voltage electrostatic generator (10) is a high-voltage direct-current electrostatic generator.
Further: an included angle Q between a plane where central axes of the first-stage corona electrode (17) and the grounding rotating roller (14) are positioned and a horizontal plane1The distance between the first-stage corona discharge pin and the grounded rotating roller is 140-180mm at 30 degrees. An included angle Q between a plane where the central axis of the second-stage corona electrode (18) and the central axis of the rotating roll shaft (22) are positioned and a horizontal plane2The distance between the corona discharge pin of the second corona electrode and the mesh surface of the grounding rotating roller is 20 degrees and 180 mm; a central axis of the static electrode (19) and a rotating roll axis (b)22) The included angle Q between the plane of the central axis and the horizontal plane 310 degrees, the optimal distance between the static electrode and the grounded rotating roller is 140mm and 180 mm.
Furthermore, the electrostatic separation part can be divided into a plurality of stages, namely, the directions of a first corona electrode, a second corona electrode, a static electrode, a grounding roller and a negative pressure impurity absorbing pipeline are changed, and the electrostatic separation part is combined in a plurality of stages; the negative pressure impurity absorbing pipeline can be arranged at any position around the grounding rotating roller and does not interfere the falling direction of the cotton flow, and the cross section of the suction nozzle is tangential and parallel to the surface of the grounding rotating roller; the cotton dropping plate for guiding the cotton flow direction is made of an insulating and anti-static smooth thin plate; the primary corona electrode (17), the secondary corona electrode (18) and the static electrode (19) are always distributed on the same side of the grounding roller (14); the negative pressure impurity absorbing pipeline is connected with a negative pressure fan, and the negative pressure fan forms proper air pressure to absorb and remove the foreign fibers adsorbed on the grounding roller.
Furthermore, the grounding rotating roller consists of a grounding rotating roller net surface and a grounding rotating roller shaft, the grounding rotating roller net surface and the grounding rotating roller shaft are welded through flanges, the grounding rotating roller net surface is a cylinder with the outer diameter of 220mm, the thickness of the galvanized iron plate is 1.5mm, and the galvanized iron plate is coaxially matched with the grounding rotating roller shaft. When the grounding device works, the fixing nut is integrally grounded through the bearing.
The invention has the beneficial effects that: compared with the prior art, this electrostatic seed cotton foreign fiber clearing modular device has set up double corona utmost point and has added the static electrode structure, arrange rationally, the material is electric charged the effect is optimal, can effectively reject light foreign fiber such as plastic film among the machine-harvested seed cotton, be difficult for causing seed cotton fiber damage in the use, can be fine be applicable to in the cotton processing foreign fiber and clear away the link, reduced because of the incomplete membrane mix with at cotton inside and lead to the various problems that the cotton deep-processing appears, therefore cotton machining efficiency and economic benefits have been improved.
Drawings
FIG. 1 is an isometric view of the present invention
FIG. 2 is a front view of the present invention
FIG. 3 is a cross-sectional view of the present invention
FIG. 4 is a cross-sectional view of a corona electrode
FIG. 5 is a front view of the ground roller
FIG. 6 is a schematic illustration of key component parameters: 1. the cotton feeder comprises a feeding box, 2 parts of a wallboard support, 3 parts of a cotton feeding box rear support, 4 parts of an insulating wallboard, 5 parts of a fixing nut, 6 parts of a grounding terminal, 7 parts of a negative pressure fan, 8 parts of a trash discharging port, 9 parts of a high-voltage electrostatic lead, 10 parts of a high-voltage electrostatic generator, 11 parts of a belt wheel, 12 parts of a belt, 13 parts of a motor, 14 parts of a grounding rotating roller, 15 parts of a bearing, 16 parts of a cotton dripping plate, 17 parts of a first-stage corona electrode, 18 parts of a second-stage corona electrode, 19 parts of a static electrode, 20 parts of a corona discharging pin, 21 parts of a grounding rotating roller mesh surface, 22 parts of a rotating roller shaft, 23 parts of a suction nozzle, 24 parts of a negative pressure trash sucking pipeline and 25 parts of a cotton collecting box.
Detailed Description
Example 1
Referring to fig. 1, 2 and 3, the present embodiment includes an electrostatic separation portion and a foreign fiber removing portion.
The feeding part is composed of a feeding box (1) at the top of the whole machine and a cotton dropping plate (16), wherein the cotton dropping plate (16) is positioned below the feeding box (1), connected with the feeding box and fixed with the insulating wall plate (4) and mainly responsible for draining single-layer impurity residual membrane seed cotton to the electrostatic separation part.
The electrostatic separation part comprises a first-stage corona electrode, a second-stage corona electrode, a static electrode, a grounding rotating roller, a high-voltage electrostatic generator, a different-fiber negative-pressure conveying pipeline, an insulating wall board and a grounding terminal, wherein the insulating wall board (4) is fixed on the right side of the high-voltage electrostatic generator (10), the first-stage corona electrode (17) and the second-stage corona electrode (18) are powered by a high-voltage electrostatic lead (9), and the first-stage corona electrode (17) and the second-stage corona electrode (18) are respectively above the horizontal plane of a rotating roller shaft (22), namely Q1Is 30 degrees; q2Is 20 deg. distribution. The corona discharge pin header (20) is positioned on the first-stage corona electrode (17) and the second-stage corona electrode (18), the distance between the needle point and the grounded rotating roller mesh surface (21) is 140mm, the static electrode (19) and the grounded rotating roller shaft (22) are distributed at an angle of 10 degrees below the horizontal plane, the optimal distance between the surface of the corona discharge pin header and the grounded rotating roller mesh surface (21) is 180mm, the grounded rotating roller mesh surface (21) is connected with the bearing (15) through the grounded rotating roller shaft (22) and is fixed on the insulating wall board (4), and the ground terminal (6) is connected through the fixing nut (5). The gettering nozzle (23) is matched with the negative pressure gettering pipeline (24), the distance of 10mm from the grounding roller mesh surface (21) is fixed on the insulating wall plate (4), and the negative pressure fan (7) is tightly connected with the right side of the negative pressure gettering pipeline (24).
Insulating wall panel (4) left side is equipped with motor (13), motor (13) link to each other through transmission with ground connection commentaries on classics roller (14) during operation.
The transmission device is belt transmission or chain transmission.
When in operation, the power supply is switched on, the motor drives the grounding roller (14) to rotate through the belt wheel (13) and the leather wheel, the negative pressure fan (7) starts to work, the mechanically-collected seed cotton uniformly passes through the feeding box (1), the material is kept in a single-layer opening state during feeding, the high-voltage electrostatic generator (10) is connected with the first-stage corona electrode (17) and the second-stage corona electrode (18) electrostatic electrode (19) through the electrostatic separation part, when the seed cotton mixed with foreign fibers such as residual films and the like falls to the electrostatic field channel, the high-voltage electrostatic field is generated between the first-stage corona electrode (17), the second-stage corona electrode (18) electrostatic electrode (19) and the grounding roller (14), the residual films and the seed cotton have electric charges in the high-voltage electrostatic field, the residual films are light in weight and small in density and hardly lose the charges in the electric field, so the residual films and the seed cotton can be adsorbed on the net surface (21) of the adsorption roller and rotate together with the grounding roller (14), when the negative pressure air is rotated to the lower part of the branch, the negative pressure air is sucked into a negative pressure impurity suction pipeline (24); the seed cotton falls down to the lower cotton collecting box under the action of gravity because the gravity of the seed cotton is far larger than the electric field force.
The invention is not the best known technology.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides an electrostatic seed cotton foreign fiber removes modular device which characterized in that: the method comprises the following steps: a feeding part, an electrostatic separation part, a foreign fiber removing part and a cotton collecting box (25); the feeding part comprises: a feeding box (1), a wallboard support (2), a feeding box rear support (3) and a cotton dropping plate (16); the electrostatic separation section includes: the device comprises a first-stage corona electrode (17), a second-stage corona electrode (18), a static electrode (19), a grounding roller (14), a high-voltage electrostatic generator (10), an insulating wall plate (4) and a grounding terminal (6); the foreign fiber removing part includes: a gettering nozzle (23), a negative pressure gettering pipeline (24) and a negative pressure fan.
2. The electrostatic seed cotton foreign fiber removal modular device of claim 1, wherein: the feeding box (1) is positioned at the uppermost part of the whole machine, the cotton dropping plate (16) is positioned below the feeding box (1), and the upper end of the cotton dropping plate is fixedly connected with the lower end of the feeding box (1); two ends of the side surface of the insulating wall plate are fixed with the insulating wall plate (4); the insulation wallboard is three vertical plate surfaces which are respectively arranged on the left side surface, the right side surface and the rear end surface of the lower end of the feeding box (1), the front ends of the left side surface and the right side surface are fixedly connected with the left end and the right end of the axial wallboard support (2), the upper end surface of the rear end of the insulation wallboard is fixedly connected with the feeding box rear support (3), and the upper end of the feeding box rear support (3) is fixedly connected with the feeding box (1); the lower extreme of insulated wall panel (4) is fixed and is provided with collection hopper (25), collection hopper (25) top left and right sides is provided with the top cap that outwards extends along the lower extreme of insulated wall panel (4).
3. The electrostatic seed cotton foreign fiber removal modular device of claim 2, wherein: the high-voltage electrostatic generator (10) is fixed on the outer side of the right end of the insulating wall plate (4) and is positioned at the upper end of a top cover extending outwards from the right end of the cotton collecting box, the high-voltage electrostatic generator (10) is electrically connected with a first-stage corona electrode (17), a second-stage corona electrode (18) and a static electrode (19) through a high-voltage electrostatic lead (9), the first-stage corona electrode (17), the second-stage corona electrode (18) and the static electrode (19) are all arranged at the front end below the cotton dripping plate (16), and the grounding rotating roller (14) is arranged at the rear end below the cotton dripping plate (16); the seed cotton passage channel consists of a first-stage corona electrode (17), a second-stage corona electrode (18), a static electrode (19) and a grounding roller (14) which are positioned at the front end; the cotton dropping plate (16) guides the seed cotton into the channel;
two ends of the primary corona electrode (17), the secondary corona electrode (18) and the static electrode (19) are fixedly connected with the insulating wall plate (4); two ends of the grounding rotating roller (14) are connected with the bearing (15) through a central shaft and are horizontally supported at two ends of the insulating wall plate (4).
4. The electrostatic seed cotton foreign fiber removal modular device of claim 3, wherein: the primary corona electrode (17) and the secondary corona electrode (18) are respectively distributed at about 20 degrees and 30 degrees above the horizontal plane of the central shaft of the grounding roller (14), and corona discharge pin headers (20) are uniformly arranged on the surfaces of the primary corona electrode (17) and the secondary corona electrode (18); the surface of the grounding roller (14) is provided with a grounding roller net surface (21); the distance between the needle point of the corona discharge pin header (20) and the grounding roller mesh surface (21) is 140-180 mm; the included angle between the plane where the central axes of the static electrode (19) and the grounding rotating roller (14) are positioned and the horizontal plane is Q3Is 10 degrees, and the optimal distance between the surface of the pipe body and the mesh surface (21) of the grounding rotating roller is 180 mm.
5. The electrostatic seed cotton foreign fiber removal modular device of claim 4, wherein: the grounding terminal (6) is connected to the outer side of the right end of the insulating wall plate (4) through a fixing nut (5); the negative pressure fan (7) is arranged on the outer side of the right end of the insulating wallboard (4) and is positioned at the lower end of the grounding terminal (6), and the negative pressure fan penetrates through the insulating wallboard (4) and then is tightly connected with the right side of the negative pressure impurity absorbing pipeline (24); the negative pressure impurity absorbing pipeline (24) is located under the grounding rotary roller (14), and an impurity absorbing nozzle (23) is arranged on the negative pressure impurity absorbing pipeline (24) and faces towards the grounding rotary roller net surface (21) and is matched with the grounding rotary roller net surface.
6. The electrostatic seed cotton foreign fiber removal modular device of claim 5, wherein: the motor (13) is positioned on the left side of the insulating wall plate (4) and positioned at the upper end of the top cover extending outwards from the left end of the cotton collecting box, a motor shaft is connected with the belt wheel (11) through a belt (12), and the belt wheel (11) is connected with the left end of the central shaft of the grounding rotating roller (14); the rotation of the motor further drives the rotation of the grounding roller (14).
7. The electrostatic seed cotton foreign fiber removal modular device of claim 6, wherein: plastic pipes with the diameter of 40mm are uniformly arranged on the outer surfaces of the primary corona electrode (17) and the secondary corona electrode (18), the corona discharge pin header is embedded in the pipe body, and the needle tip is slightly longer than the surface of the pipe body; the static electrode (19) is a metal conductive hollow pipe with the diameter of 40mm, is made of aluminum or copper, and is connected with the high-voltage static generator (10) during working.
8. The electrostatic seed cotton foreign fiber removal modular device of claim 7, wherein: the grounding rotating roller (14) is composed of a grounding rotating roller net surface (21) and a grounding rotating roller shaft (22), the grounding rotating roller net surface (21) and the grounding rotating roller shaft (22) are connected through a flange, the grounding rotating roller net surface (21) is a cylindrical cylinder with the diameter of 220mm, the thickness of the galvanized plate with meshes is 1.5mm, and the galvanized plate and the grounding rotating roller shaft (22) are coaxially matched. When the device works, the fixing nut (5) is integrally grounded through the bearing (15); the corona discharge pin header (20) is positioned on the outer surfaces of the first-stage corona electrode (17) and the second-stage corona electrode (18), and the corona discharge pin header (20) is aligned with the central shaft of the grounding roller shaft (22); the high-voltage electrostatic generator (10) is a high-voltage direct-current electrostatic generator.
9. The electrostatic seed cotton foreign fiber removal modular device of claim 7, wherein: an included angle Q between a plane where central axes of the first-stage corona electrode (17) and the grounding rotating roller (14) are positioned and a horizontal plane1The distance between the first-stage corona discharge pin and the grounded rotating roller is 140-180mm at 30 degrees. An included angle Q between a plane where the central axis of the second-stage corona electrode (18) and the central axis of the rotating roll shaft (22) are positioned and a horizontal plane2The distance between the corona discharge pin of the second corona electrode and the mesh surface of the grounding rotating roller is 20 degrees and 180 mm; the included angle Q between the plane where the central axis of the static electrode (19) and the central axis of the rotating roller shaft (22) are positioned and the horizontal plane310 degrees, the optimal distance between the static electrode and the grounded rotating roller is 140mm and 180 mm.
10. The electrostatic seed cotton foreign fiber removal modular device of claim 9, wherein: the electrostatic separation part can be divided into a plurality of stages, namely, the directions of a first corona electrode, a second corona electrode, a static electrode, a grounding roller and a negative pressure impurity absorbing pipeline are changed, and the electrostatic separation part is combined in a plurality of stages; the negative pressure impurity absorbing pipeline can be arranged at any position around the grounding rotating roller and does not interfere the falling direction of the cotton flow, and the cross section of the suction nozzle is tangential and parallel to the surface of the grounding rotating roller; the cotton dropping plate for guiding the cotton flow direction is made of an insulating and anti-static smooth thin plate; the primary corona electrode (17), the secondary corona electrode (18) and the static electrode (19) are always distributed on the same side of the grounding roller (14); the negative pressure impurity absorbing pipeline is connected with a negative pressure fan, and the negative pressure fan forms proper air pressure to absorb and remove the foreign fibers adsorbed on the grounding roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110796350.3A CN113638080B (en) | 2021-07-14 | 2021-07-14 | Electrostatic seed cotton foreign fiber removing modularized device |
Applications Claiming Priority (1)
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