CN108546999A - Air-flow combines foreign fiber separating device with multistage cylinder electrostatic - Google Patents

Abstract

The invention relates to an airflow and multistage drum type electrostatic combined foreign fiber separation device, in particular to an airflow and multistage drum type electrostatic combined foreign fiber separation device in the process of seed cotton processing. The separation device includes a feeding port, an air separation Device shell, airflow separation foreign fiber inlet, airflow opening, foreign matter negative pressure conveying pipe, conveying slide plate, electrostatic separation device shell, motor, roller, pulley, belt, electrode plate, electrostatic electrode, electrostatic separation foreign fiber inlet, wool Brushes, protective covers, high-voltage electrostatic generators, grounding terminals and seed cotton outlets; compared with the prior art, this invention adopts the principle of combined airflow and multi-stage drum-type electrostatic separation to combine air-flow and multi-stage drum-type electrostatic separation for foreign fibers Sorting, foreign fiber rejection rate is higher, and can achieve efficient separation of seed cotton and foreign fiber without damage.

Description

Airflow and multi-stage drum type electrostatic combined foreign fiber separation device

technical field

The invention relates to a device for separating foreign fibers in the process of seed cotton processing, in particular to a device for separating foreign fibers combined with airflow and multi-stage drum-type static electricity, which belongs to the field of agricultural machinery.

Background technique

my country is a big country of cotton production and consumption. Cotton is easily mixed with foreign fibers such as residual film and hair during the process of harvesting, packaging, handling, loading and unloading and storage. If the mixed foreign fibers are not removed during seed cotton processing, the quality of cotton yarn and textiles will be seriously affected, and economic losses will be brought to cotton processing enterprises.

At present, the published foreign fiber separation device such as CN200820103970.4 uses a mechanical method to clean foreign fibers, but it can only remove relatively large impurities, and cannot remove small foreign fibers such as small debris, residual film, and hair strands; CN201110324521.9 Use electrostatic method to separate foreign fibers, charge the seed cotton during transportation on the conveying mesh belt, and blow off the foreign fibers adhering to the mesh belt with the help of wind force, the charging time is short, and the removal rate of foreign fibers is low ; CN201610356118.7 adopts a multi-stage conveying mesh belt, and carries out the cleaning of foreign fibers through static electricity, and through the tumbling of the seed cotton in the process of transferring step by step between the conveying belts, the contact area between the mesh belt and the conveying belt is increased, and the foreign fiber is improved. Removal efficiency. The present invention adopts the combined method of airflow sorting and multi-stage drum type electrostatic sorting to remove foreign fibers, which is fundamentally different from existing foreign fiber removal devices in principle, and is also fundamentally different from existing devices in structure. The foreign fiber removal part can be set to multi-level; the drum in the multi-stage drum type electrostatic foreign fiber removal part increases the contact area between the seed cotton and the drum during the rotation process, which can realize the cleaning of the seed cotton and foreign fibers without damage. efficient separation.

Contents of the invention

The object of the present invention is to provide a seed cotton foreign fiber separating device with good separation effect, simple structure, high working efficiency and no damage, which is suitable for cotton processing plants.

The purpose of the present invention is achieved through the following technical solutions:

The invention relates to an airflow and multi-stage drum type electrostatic combined foreign fiber separation device, which consists of a feeding port, an airflow separation device housing, an airflow separation foreign fiber inlet, an airflow opening, a negative pressure conveying pipeline for foreign matter, a conveying slide, and an electrostatic separation device Shell, motor, drum, pulley, belt, electrode plate, electrostatic electrode, inlet for electrostatic separation of foreign fibers, brush, protective cover, high-voltage electrostatic generator, grounding terminal and seed cotton outlet; the whole device is arranged vertically, The feeding port is arranged at the top of the whole device, the airflow separation housing is arranged below the feeding port, and several airflow openings are arranged on the right side of the housing of the airflow separation device. The airflow separation foreign fiber inlet is set on the left side, and there is a certain height difference between the airflow opening on the right side and the corresponding airflow separation foreign fiber inlet on the left side. Negative pressure conveying pipeline; the conveying slide plate is fixed under the shell of the electrostatic separator to guide the seed cotton into the shell of the electrostatic separator, and the shell of the electrostatic separator is arranged under the shell of the airflow separator, at an angle of 60° to the horizontal direction Angle, with a plurality of rollers (7) and fixed on the inclined electrostatic separation device housing (2) through the bearing seat, the motor (18) through the pulley (6) and the belt (5), the belt and the plurality of rollers The roller shafts are connected to drive a plurality of rollers (7), the motor transmits the power to the bottom roller, the bottom roller transmits the power to the middle roller, and the middle roller transmits the power to the top roller, so that the motor can drive multiple rollers. Two rollers rotate simultaneously, and arc-shaped electrode plates matched with them are arranged on the upper right side of the plurality of rollers, and the arc-shaped electrode plates (15) are fixed on the shell of the electrostatic separation device through bolts and nuts, and the electrostatic separation device The casing is grounded through the grounding terminal, the high-voltage electrostatic generator is connected to the electrostatic electrode in the electrode plate, the protective cover is arranged outside the electrode plate, and the brush is fixed on the shell of the electrostatic separation device and is close to the roller. The above-mentioned electrostatic separation foreign fiber inlet is set on the upper or lower side of the brush (if the drum rotates clockwise, it is set on the lower side, if the drum rotates counterclockwise, it is set on the upper side), foreign fibers are brushed off by the brush and fall into the electrostatic separator. The separated fiber inlet is transported to the foreign matter negative pressure conveying pipeline under the action of negative pressure, and the cleaned seed cotton is transported to the seed cotton outlet under the action of negative pressure;

The foreign body negative pressure conveying pipeline is set on the far left side of the whole machine, runs through from top to bottom, and connects with the airflow separation foreign fiber inlet and the electrostatic separation foreign fiber inlet on the left side;

The present invention is an air flow and multi-stage drum type electrostatic combined foreign fiber separation device. During operation, the foreign fiber in the seed cotton is separated through the combined action of air flow separation and electrostatic separation, and the seed cotton enters the shell of the air flow separation device through the feeding port. Under the action of the negative pressure of the foreign fiber conveying, the direction of the air flow field in the housing of the airflow separation device is from the airflow opening to the inlet of the airflow separation foreign fiber. The gravity of the seed cotton is much greater than the wind force of the foreign fiber conveying negative pressure, and it will continue to fall into the electrostatic separation In the housing of the device, foreign fibers such as residual film have a small gravity, and enter the inlet of the airflow separation foreign fiber under the action of the negative pressure of the foreign fiber conveying, and then are sent into the foreign matter negative pressure conveying pipeline; the conveying slide guides the seed cotton into the electrostatic separation device shell Electrostatic sorting is carried out inside, the motor drives the drum to rotate (forward and reverse rotation is acceptable), and the seed cotton slides downward under the action of negative pressure and gravity of the seed cotton conveying; the shell of the electrostatic separation device is grounded through the grounding terminal, and the high-voltage electrostatic generator and The electrostatic electrodes in the electrode plates are connected, and a high-voltage electrostatic field is generated between the electrode plates and the drum, and the foreign fibers and seed cotton are charged in the high-voltage electrostatic field, the foreign fibers are negatively charged in the electric field, the seed cotton is positively charged, and the remaining film is of opposite sex. The fiber will adhere to the roller due to negative charge, and the brush will sweep the foreign fiber adhered to the roller to the entrance of the electrostatic separation foreign fiber, and send it into the foreign material negative pressure conveying pipeline under the action of negative pressure; in the shell of the electrostatic separation device The body is equipped with multi-stage rollers for foreign fiber cleaning, which can make the seed cotton fully contact with the rollers, thereby improving the foreign fiber cleaning rate; finally, the seed cotton after electrostatic sorting is transported to the seed cotton outlet under negative pressure.

Compared with the prior art, the present invention adopts the principle of combined airflow and multi-stage drum type electrostatic separation to remove foreign fibers multiple times, with a higher rejection rate of foreign fibers, and can realize the separation of seed cotton and foreign fibers without damage. Efficient separation of fibers.

Description of drawings

Figure 1 is a schematic diagram of the structure of the airflow and multi-stage drum type electrostatic combined heterosexual fiber separation device (clockwise rotation)

Figure 2 is a schematic diagram of the structure of the airflow and multi-stage drum type electrostatic combined heterosexual fiber separation device (rotating counterclockwise)

In the figure: 1. Ground terminal, 2. Electrostatic separation device housing, 3. Electrostatic separation foreign fiber inlet, 4. Brush, 5. Belt, 6. Pulley, 7. Roller, 8. Conveying slide, 9. Foreign matter negative pressure conveying pipeline, 10. Airflow separation foreign fiber inlet, 11. Airflow separation device housing, 12. Airflow opening, 13. Feeding port, 14. Protective cover, 15. Electrode plate, 16. Electrostatic electrode, 17. High-voltage electrostatic generator, 18. Motor, 19. Export of seed cotton.

Detailed ways

Embodiment 1: Referring to accompanying drawing 1, this embodiment: includes feeding port (13), airflow separation device housing (11), airflow separation foreign fiber inlet (10), airflow opening (12), foreign matter negative pressure conveying pipeline (9), conveying slide (8), electrostatic separation device housing (2), motor (18), roller (7), pulley (6), belt (5), electrode plate (15), electrostatic electrode (16 ), electrostatic separation of foreign fiber inlet (3), brush (4), protective cover (14), high-voltage electrostatic generator (17), grounding terminal (1) and seed cotton outlet (19); the whole machine device is vertical Set, the feeding port (13) is arranged on the top of the whole device, the air separation device housing (11) is arranged below the feeding port (13), and the air separation device housing (11) The corresponding airflow opening (12) is provided on the right side, the airflow separation foreign fiber inlet (10) is provided on the left side of the airflow separation device housing (11), the airflow opening (12) and the corresponding airflow separation foreign fiber The inlet (10) has a certain height difference, and the foreign fiber enters the airflow separation inlet (10) under the action of the airflow, and finally merges into the foreign matter negative pressure conveying pipeline (9); 2) Below, guide the seed cotton into the electrostatic separation device housing (2), the electrostatic separation device housing (2) is arranged below the airflow separation device housing (11), at an angle of 60° with the horizontal direction, The drum (7) is fixed on the shell (2) of the electrostatic separation device through the bearing seat, the power of the drum (7) is provided by the motor (18) through the pulley (6) and the belt (5), and the motor (18) transmits the power to The bottom roller, the bottom roller transmits the power to the middle roller, and the middle roller transmits the power to the top roller, so that the motor (18) drives the three rollers (7) to rotate clockwise at the same time, and the rollers (7) The right side is provided with an electrode plate (15), fixed on the electrostatic separation device housing (2) by bolts and nuts, the electrostatic separation device housing (2) is grounded through the grounding terminal (1), and the high-voltage electrostatic generator (17) Connected to the electrostatic electrode (16) in the electrode plate (15), the protective cover (14) is arranged above the electrode plate (15), and the brush (4) is fixed on the electrostatic separation device housing (2) on and close to the roller (7), the electrostatic separation foreign fiber inlet (3) is set on the lower side of the brush (4), foreign fibers are brushed off by the brush (4) and fall into the electrostatic separation foreign fiber inlet (3) , transported to the foreign matter negative pressure conveying pipeline (9) under the action of negative pressure, and the cleaned seed cotton is transported to the seed cotton outlet (19) under the action of negative pressure.

During the operation, the foreign fibers in the seed cotton are separated through the combined action of airflow separation and electrostatic separation, and the seed cotton enters the casing (11) of the airflow separation device through the feeding port (13). , the direction of the airflow field in the housing (11) of the airflow separation device is from the airflow opening (12) to the airflow separation foreign fiber inlet (10), the gravity of the seed cotton is much greater than the wind force of the negative pressure of the foreign fiber transportation, and it will continue to fall into the static electricity. In the separation device housing (2), foreign fibers such as residual film have a relatively low gravity, and enter the airflow separation foreign fiber inlet (10) under the action of foreign fiber conveying negative pressure, and then are sent into the foreign matter negative pressure conveying pipeline (9) The conveying slide (8) guides the seed cotton into the electrostatic separation device housing (2) for electrostatic separation, the motor (18) drives the drum (7) to rotate clockwise, and the seed cotton slides downward under the action of negative pressure and gravity of the seed cotton conveying The electrostatic separator housing (2) is grounded through the grounding terminal (1), and the high-voltage electrostatic generator (17) is connected to the electrostatic electrode (16) in the electrode plate (15), and the electrode plate (15) and the cylinder (7) A high-voltage electrostatic field is generated between them. The foreign fiber and seed cotton are charged in the high-voltage electrostatic field. The foreign fiber is negatively charged in the electric field, and the seed cotton is positively charged. The remaining film and other foreign fibers will adhere to the drum due to negative charge (7) ), the brush (4) sweeps the foreign fibers adhering to the drum (7) to the electrostatic separation foreign fiber inlet (3), and sends them into the foreign matter negative pressure conveying pipeline (9) under the action of negative pressure; The shell (2) of the electrostatic separation device is equipped with multi-stage drums (7) for foreign fiber cleaning, which can make the seed cotton fully contact with the drums (7), thereby improving the cleaning rate of foreign fibers; finally, after air separation and electrostatic separation The selected seed cotton is transported to the seed cotton outlet (19) under negative pressure.

Embodiment 2: Referring to the accompanying drawing 2, when the airflow and multi-stage drum type electrostatic combined foreign fiber separation device is working, the motor drives the drum to rotate counterclockwise, which can also achieve the purpose of cleaning foreign fibers; The following modification, the electrostatic separation foreign fiber entrance (3) is set on the upper side of the brush (4), the motor (18) drives the roller (7) to rotate counterclockwise, the foreign fiber is brushed off by the brush (4) and falls into the static electricity Detach the foreign fiber inlet (3).

The above description is only a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the technical principles of the present invention. within the scope of patent protection.

Claims (4)

1. a kind of air-flow combines foreign fiber separating device with multistage cylinder electrostatic, it is characterised in that：The separator includes Spout (13), gas-flow separation unit shell (11), the different fine entrance (10) of air-flow separation, gas flow opening (12), foreign matter negative pressure are defeated Send pipeline (9), conveying slide plate (8), electrostatic separator shell (2), motor (18), roller (7), belt wheel (6), belt (5), electricity The different fine entrance (3) of pole plate (15), electrostatic attraction electrode (16), electrostatic separation, hairbrush (4), protective cover (14), HV generator (17), ground terminal (1) and unginned cotton outlet (19)；The setting in a vertical shape of separator complete machine, spout (13) setting exist The top of complete machine device, gas-flow separation unit shell (11) setting detach below the spout (13) in air-flow It is provided with the gas flow opening (12) on the right side of device case (11), the gas is provided on the left of gas-flow separation unit shell (11) Flow point divorced fibre entrance (10), gas flow opening (12) and the different fine entrance (10) of opposite air-flow separation have that certain altitude is poor, different fibre Enter under airflow function in the different fine entrance (10) of air-flow separation and finally imports foreign matter negative pressure transportation pipeline (9)；Convey slide plate (8) it is fixed on the lower section of electrostatic separator shell (2), it is internal that guiding unginned cotton enters electrostatic separator shell (2)；It is described quiet In the lower section of the gas-flow separation unit shell (11), shell is pressed from both sides from the horizontal by 60 ° for electrically separated device case (2) setting Angle；It is fixed on multiple rollers (7) and by bearing block on inclined electrostatic separator shell (2), motor (18) passes through The roller axis connection of belt wheel (6) and belt (5), belt and multiple rollers and then multiple rollers (7) are driven, motor (18) is by power Lowermost end roller is passed to, lowermost end roller imparts power to intermediate roller, and intermediate roller imparts power to most again Top roller, to realize that motor (18) drives multiple rollers (7) while clockwise rotation；It is arranged in roller (7) upper right side There are the electrode plate (15) of arc, the electrode plate (15) of the arc to be fixed on the electrostatic separator shell by bolt and nut Upper (2), electrostatic separator shell (2) are grounded by ground terminal (1), the electricity of HV generator (17) and the arc Electrostatic attraction electrode (16) in pole plate (15) is connected, and protective cover (14) is arranged in the outside of the electrode plate (15) of the arc, multiple Hairbrush (4) is fixed on electrostatic separator shell (2) and is close to corresponding multiple rollers (7), and a hairbrush accordingly matches unification A roller；The different fine entrance (3) of the electrostatic separation is arranged on the downside of corresponding hairbrush (4), and foreign fiber is brushed off and fallen by hairbrush (4) Enter the different fine entrance (3) of electrostatic separation, is delivered to foreign matter negative pressure transportation pipeline (9) under the action of negative pressure, the unginned cotton after cleaning is negative It is transported to unginned cotton outlet (19) under pressure effect；Foreign matter negative pressure transportation pipeline is arranged in the leftmost side of separator, from top to bottom Perforation, different fine entrance is detached with the air-flow for being set to left side and the different fine entrance of electrostatic separation connects.

2. a kind of air-flow combines foreign fiber separating device with multistage cylinder electrostatic as described in claim 1, it is characterised in that： The separator is by two step compositions of air-flow impurities eliminating and multistage cylinder electrostatic impurities eliminating.

3. a kind of air-flow as described in claim 1 combines foreign fiber separating device with multistage cylinder electrostatic, feature exists In：The different fine entrance of air-flow separation, gas flow opening may be configured as multiple.

4. a kind of air-flow as described in claim 1 combines foreign fiber separating device with multistage cylinder electrostatic, feature exists In：Roller and the different fine entrance of electrostatic separation may be configured as multiple.