CN114669478B - Wind screen roller combined seed cleaning device - Google Patents
Wind screen roller combined seed cleaning device Download PDFInfo
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- CN114669478B CN114669478B CN202210357295.2A CN202210357295A CN114669478B CN 114669478 B CN114669478 B CN 114669478B CN 202210357295 A CN202210357295 A CN 202210357295A CN 114669478 B CN114669478 B CN 114669478B
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- cleaning
- impurity
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- roller
- fan
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
Abstract
The invention relates to a wind screen roller combined seed cleaning device. The device comprises a frame, a feeding port, a vibration cleaning sieve, a impurity sucking fan and an accelerating roller cleaning chamber, wherein a first impurity sucking port which corresponds to the vibration cleaning sieve downwards is arranged at the bottom of a shell of the impurity sucking fan, so that a first negative pressure sucking area is formed above a screen surface of the vibration cleaning sieve, the accelerating roller cleaning chamber is arranged below the vibration cleaning sieve, a second impurity sucking port is relatively arranged on the side wall of a cleaning box of the accelerating roller cleaning chamber, a second negative pressure sucking area which sucks the impurities in the cleaning box towards the lateral direction is formed inside the accelerating roller cleaning box, and when the device is used, the accelerating roller is used for sucking most of the impurities separated by the vibration cleaning sieve, and accelerating seeds and small parts of the impurities which fall through a cleaning sieve hole. According to the wind screen roller combined seed cleaning device, through integrated arrangement, the cleaning efficiency and the cleaning effect are improved while the size of the cleaning device is reduced.
Description
Technical Field
The invention relates to the field of agricultural machinery equipment for seed cleaning, in particular to a wind screen roller combined seed cleaning device.
Background
Along with development of agricultural mechanization, in order to realize seed cleaning, a traditional air screen type cleaning system is generally adopted, but for light sundries such as an inner diaphragm bonded on the seeds, broken pod shells, stem scraps mixed in the seeds and the like, the cleaning system is difficult to realize effective separation cleaning, so that the content of impurities in the cleaned seeds is higher, and the cleaning requirement cannot be met.
In order to solve the problem, an adhesive sundry separating mechanism is additionally arranged in the cleaning process of the existing cleaning system to separate seeds from adhesive sundries, for example, a low-loss efficient cleaning machine disclosed in Chinese patent with application publication number of CN109013339A comprises a primary cleaning device and a secondary cleaning device, the primary cleaning device comprises a vibrating cleaning screen, a tail screen and a second fan, the vibrating cleaning screen is used for primarily layering and filtering the seeds and the sundries through vibration, the primarily filtered seeds are conveyed to the tail screen through a chute, the tail screen is used for filtering the seeds again, the filtered seeds fall into the secondary cleaning device below the tail screen, the second fan is used for primarily winnowing the fallen seeds to blow out the light sundries, the secondary cleaning device comprises a rolling acceleration separation area and a first fan, the rolling acceleration separation area is used for kneading and accelerating the seeds to separate the seeds from the adhesive sundries, and the first fan is used for blowing out the sundries to finish cleaning of the seeds.
But this cleaning plant is comparatively complicated, and occupation volume is great, and the seed loss rate is higher in the screening process of granule seed, and the debris that just screens out is difficult to collect, mixes again with the seed easily, leads to cleaning efficiency still lower.
Disclosure of Invention
The invention aims to provide a wind screen roller combined seed cleaning device which is used for solving the problems of low cleaning efficiency and large occupied volume of the existing seed cleaning device.
In order to achieve the above purpose, the wind screen roller combined seed cleaning device adopts the following technical scheme: the device comprises a frame, a feeding port, a vibration cleaning sieve, a impurity-sucking fan and an accelerating roller cleaning chamber, wherein the accelerating roller cleaning chamber comprises a cleaning box and a plurality of accelerating rollers, the top of the cleaning box is provided with the feeding port, the accelerating rollers are horizontally arranged below the feeding port, the impurity-sucking fan comprises a shell, the bottom of the shell is provided with a first impurity-sucking port facing the sieve surface of the vibration cleaning sieve, the first impurity-sucking port forms a first negative pressure suction area on the sieve surface of the vibration cleaning sieve, and the feeding port is arranged below the vibration cleaning sieve and upwards corresponds to the first impurity-sucking port; a second impurity sucking port is arranged on the side wall of the cleaning box and is positioned below the accelerating roller so as to form a second negative pressure sucking area which sucks in the lateral direction in the cleaning box;
when the device is used, the first negative pressure suction area is used for sucking sundries separated by the vibration cleaning sieve, the accelerating roller is used for separating seeds falling through sieve holes of the vibration cleaning sieve from residual sundries and accelerating falling speed of the seeds and the sundries, and the second negative pressure suction area is used for sucking sundries in the cleaning box.
The beneficial effects are that: the first impurity suction port of the impurity suction fan forms a first negative pressure suction area on the vibration cleaning sieve, and the impurity suction fan can play a role in slowing down the falling speed of seeds and impurities while sucking the impurities screened out on the vibration cleaning sieve, so that the residence time of the seeds and the impurities at the vibration cleaning sieve is prolonged to a certain extent, and the cleaning effect of the vibration cleaning sieve on the seeds is improved; in addition, due to the density, the size and the aerodynamic characteristics of the seeds and the sundries, the negative pressure suction has more obvious speed reducing effect on the sundries, the speed increasing effect of the speed increasing roller is more obvious, and the two speed increasing effects are accumulated, so that the separation and layering effects of the seeds and the sundries are greatly improved, and the cleaning effect is further improved to the greatest extent; and the impurity-sucking fan, the vibration cleaning sieve and the accelerating roller cleaning chamber are sequentially arranged from top to bottom, so that the falling process of seeds and sundries is skillfully utilized, the conveying device is saved, and the occupied volume of the device is reduced.
Preferably, a secondary gettering channel is arranged on the shell of the gettering fan, and is communicated with the second gettering port to provide negative suction pressure for the second gettering port.
The beneficial effects are that: the impurity-sucking fan is used for simultaneously providing suction negative pressure for the vibration cleaning sieve and the accelerating roller cleaning chamber, so that impurities cleaned by the cleaning device are discharged from the impurity outlet of the same impurity-sucking fan, and the cleaned impurities are conveniently collected; meanwhile, the design of 'one machine for two purposes' reduces the fan arrangement required by the cleaning device and reduces the whole volume of the cleaning device.
Further, two second gettering mouths are arranged on the opposite side walls of the cleaning box respectively.
The beneficial effects are that: the two second impurity sucking ports are respectively arranged on the opposite side walls of the cleaning box, so that impurities in the cleaning box can be uniformly and efficiently sucked, and the cleaning efficiency is improved.
Further, the axial direction of the accelerating roller is defined as the front-back direction, the arrangement direction of the accelerating roller is the left-right direction, and the two second impurity sucking openings are oppositely arranged on the side walls of the cleaning box on the left side and the right side of the accelerating roller, so that stable negative pressure air flow is provided for the cleaning box, and the separation of seeds and impurities is better realized.
The beneficial effects are that: the second impurity sucking ports are arranged on the side walls of the cleaning box on two sides of the arrangement direction of the accelerating rollers, interference between the arrangement of the second impurity sucking ports and the auxiliary impurity sucking channels and the transmission structure of the accelerating rollers can be avoided, and the structure is more reasonable.
Preferably, the bottom of the shell of the impurity-sucking fan is provided with an air inlet, the air inlet comprises a main impurity-sucking region and an auxiliary impurity-sucking region, the main impurity-sucking region forms a first impurity-sucking port, the auxiliary impurity-sucking region is communicated with a second impurity-sucking port through an auxiliary impurity-sucking channel, the auxiliary impurity-sucking channel comprises an upper cylinder body and a lower cylinder body which are mutually communicated, the lower end of the upper cylinder body is fixedly connected with the upper end of the lower cylinder body, the axial direction of an accelerating roller is defined as a front-back direction, the arrangement direction of the accelerating roller is a left-right direction, the upper cylinder body extends from top to bottom in the left-right direction in a direction far away from the impurity-sucking fan, and the lower cylinder body extends from top to bottom in the left-right direction in a direction near to the cleaning box, so that a bending structure is formed in the middle of the auxiliary impurity-sucking channel to avoid the vibration cleaning sieve.
The beneficial effects are that: through the slope extension setting of the upper and lower barrel of vice gettering passageway, form the structure of buckling at the middle part of vice gettering passageway, when guaranteeing the cleaning effect, avoid taking place to interfere with vibration cleaning sieve, effectively reduced the volume of device.
Further, a movable air door is arranged in the air inlet, the movable air door separates the air inlet to form a main impurity sucking area and an auxiliary impurity sucking area, and the movable air door can be freely adjusted to change the ventilation quantity of the first impurity sucking port and the second impurity sucking port.
The beneficial effects are that: the movable air door capable of being freely adjusted is arranged in the air inlet of the impurity sucking fan, the impurity sucking openings are separated to form a main impurity sucking area and an auxiliary impurity sucking area, so that an operator can adjust the movable air door according to actual conditions, suction negative pressure at the two impurity sucking openings is reasonably distributed, energy waste and seed loss are reduced, and cleaning efficiency is improved.
Preferably, the feeding port and the impurity-sucking fan are horizontally arranged above the vibration cleaning sieve along the front-back direction, the feeding port is positioned at the front side of the impurity-sucking fan, the main impurity-sucking area and the auxiliary impurity-sucking area are arranged in the front-back direction in the air inlet of the impurity-sucking fan, the front side and the rear side of the bottom of the shell of the impurity-sucking fan are respectively provided with a guide plate, the guide plates at the front side are obliquely arranged forward, and the guide plates at the rear side are obliquely arranged backward to form a flaring structure in the front-back direction, so that the first negative pressure suction area covers the upper part of the whole vibration cleaning sieve.
The beneficial effects are that: through the flaring structure's of guide plate setting, enlarged the suction scope of the first negative pressure suction zone that first suction inlet formed, guaranteed that first negative pressure suction zone can cover whole vibration cleaning sieve, avoided the setting of feed inlet to influence the cleaning of suction fan to the seed of feed inlet below, guaranteed the cleaning effect.
Preferably, the structure of the auxiliary gettering channel communicated with the second gettering port is a flaring structure, and the radial sectional area of the flaring structure is gradually increased towards the inside of the cleaning box so as to enlarge the coverage range of the second negative pressure pumping area.
The beneficial effects are that: through setting the structure of second inhale miscellaneous mouthful department to flaring structure, increased the suction scope of second negative pressure suction zone, guaranteed that the interior debris of second inhale miscellaneous mouthful to the accelerating roll cleaning is comprehensive, even, high-efficient suction, improved cleaning efficiency and cleaning effect.
Preferably, the impurity outlet of the impurity sucking fan is arranged towards the direction deviating from the feeding port.
The beneficial effects are that: the impurity outlet direction of the impurity outlet is away from the feeding port, so that impurities discharged from the impurity outlet are prevented from being mixed into the feeding port to pollute seeds, and the cleaning effect is ensured.
Preferably, the seed collecting device further comprises a seed collecting box and a sundries box, a seed outlet is formed in the bottom of the accelerating roller cleaning chamber, the seed collecting box is movably mounted below the seed outlet and used for collecting cleaned seeds, and the sundries box is arranged at the sundries outlet of the impurity suction fan and used for collecting cleaned sundries.
The beneficial effects are that: the seed collecting box is arranged to collect the cleaned seeds, so that the phenomenon that the normal operation of the accelerating roller cleaning chamber is influenced due to excessive seed accumulation in the cleaning box of the accelerating roller cleaning chamber is prevented, and the cleaned seeds are prevented from being polluted again by sundries; the sundries are collected and cleaned by the sundries box, so that the residual seeds in the sundries can be recovered conveniently, the loss rate of the seeds is reduced, pollution caused by mixing the sundries with the seeds again is avoided, and the cleaning efficiency is ensured.
Drawings
FIG. 1 is a schematic perspective view of a wind screen roller combined seed cleaning device according to the present invention;
FIG. 2 is a schematic perspective view of a gettering fan according to the present invention;
FIG. 3 is a schematic view of the structure of the acceleration roller of the present invention;
fig. 4 is a schematic view showing an operation state of the acceleration roller cleaning chamber of the present invention.
In the figure: 1. a gettering fan; 2. a frame; 3. a secondary gettering channel; 4. a glove box; 5. a seed collection box; 6. an acceleration roller cleaning chamber; 7. a motor; 8. a transmission belt; 9. vibrating the cleaning sieve; 10. a feeding port; 11. a impurity outlet; 12. an impeller; 13. a deflector; 14. a second gettering port; 15. a first gettering port; 16. a housing; 17. a roller; 18. a main accelerating roller shaft; 19. a transmission gear; 20. sundries; 21. seed; 22. a guide plate; 23. a movable air door; 24. and (5) cleaning the box.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" or the like does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and capabilities of the present invention are described in further detail below in connection with the examples.
The specific embodiment of the wind screen roller combined seed cleaning device comprises: as shown in fig. 1, the wind-screen-roller combined seed 21 cleaning device of this embodiment mainly includes a frame 2, and a feeding port 10, a impurity-sucking fan 1, a vibration cleaning screen 9, an accelerating-roller cleaning chamber 6, a seed collection box 5 and a glove box 4 which are installed on the frame 2, wherein the feeding port 10 and the impurity-sucking fan 1 are horizontally installed on the upper portion of the frame 2 in parallel, the motor 7 drives the impurity-sucking fan 1 to work through a driving belt 8, the vibration cleaning screen 9 is arranged in the middle portion of the frame 2, corresponding to the lower portion of the feeding port 10 and the impurity-sucking fan 1, the accelerating-roller cleaning chamber 6 is correspondingly arranged under the vibration cleaning screen 9, and the seed collection box 5 and the glove box 4 are arranged at the bottom of the frame 2.
To more intuitively express an embodiment of the present invention, the description is made with reference to fig. 2 to 4.
As shown in fig. 3 and 4, the accelerating roller cleaning chamber 6 includes a cleaning box 24 and a plurality of accelerating rollers horizontally arranged in parallel, a feed inlet is arranged at the top of the cleaning box 24 and is used for receiving the seeds 21 cleaned by the vibration cleaning screen 9 and the sundries 20 not cleaned, the accelerating rollers include rollers 17, accelerating roller shafts and transmission gears 19, the rollers 17 of the accelerating rollers are horizontally arranged below the feed inlet, the transmission gears 19 are arranged at the end parts of the accelerating rollers, the accelerating rollers are mutually meshed and transmitted through the transmission gears 19, the accelerating roller shaft of the edge-most accelerating roller is a main accelerating roller shaft 18, one end of the main accelerating roller shaft 18 is provided with a belt wheel and is in transmission connection with a corresponding driving device, the driving device drives the main accelerating roller shaft 18 to rotate, and then drives the rollers 17 of the accelerating rollers to rotate through the transmission gears 19, a guide plate 22 is further arranged between the feed inlet and the rollers 17 to guide the seeds 21 falling from the feed inlet and the sundries 20 not cleaned to fall between the rollers 17 which rotate relatively, and the speed-up the seeds 21 and the sundries 20 are guaranteed to be separated from the corresponding accelerating rollers 21.
Further, the axial direction of the accelerating roller is defined as the front-rear direction, the arrangement direction of the accelerating roller is the left-right direction, two second impurity sucking openings 14 are arranged on the side wall of the cleaning box 24 below the roller 17 of the accelerating roller, the two second impurity sucking openings 14 are oppositely arranged on the left side wall and the right side wall of the cleaning box 24 so as to uniformly suck impurities 20 in the cleaning box 24 from the two sides of the cleaning box 24, and the structure of the second impurity sucking openings 14 is a flaring structure with the radial sectional area gradually increasing towards the interior of the cleaning box 24 so as to enlarge the sucking range of the second impurity sucking openings 14 and enable the impurities 20 in the cleaning box 24 to be effectively sucked.
The specific structure of the impurity-sucking fan 1 of this embodiment is shown in fig. 2, the impurity-sucking fan 1 includes a housing 16, an impeller 12, an air inlet, an impurity outlet 11 and an auxiliary impurity-sucking channel 3, the impeller 12 is disposed in the inner cavity of the housing 16, a negative pressure suction force is provided for the impurity-sucking fan 1 by rotating, the air inlet is disposed at the bottom of the housing 16, a movable air door 23 capable of being freely adjusted is disposed in the air inlet, the movable air door 23 separates the air inlet to form a main impurity-sucking region and an auxiliary impurity-sucking region which are arranged front and back, the ventilation quantity of the main impurity-sucking region and the auxiliary impurity-sucking region can be changed by adjusting the movable air door 23, the impurity outlet 11 is disposed at the top of the impurity-sucking fan 1 and faces the direction deviating from the feeding inlet 10, so as to avoid the impurity discharged by the impurity outlet 11 from being mixed into the seed 21 again.
The main gettering region forms a first gettering port 15, the first gettering port 15 faces downwards to correspond to the vibration cleaning sieve 9, a continuous and stable first negative pressure suction region is formed on the sieve surface of the vibration cleaning sieve 9, and sundries 20 (including all short stalks, fruit shells, light sundries and the like) in seeds 21 are discharged through three ways: most of the impurities are sucked into the impurity sucking fan 1 through the first impurity sucking port 15 and discharged through the impurity outlet 11 of the impurity sucking fan 1 after being screened out by the vibration screening sieve 9; less impurities 20 with larger particles and heavier impurities are discharged from the screen end under the vibration action of the vibration cleaning screen 9; the residual sundries 20 which are not cleaned fall into the accelerating roller cleaning chamber 6 together with the seeds 21, the seeds 21 and the residual sundries 20 are separated and cleaned in the cleaning box 24, the impurities are discharged from the impurity outlet 11 of the impurity suction fan 1 through the second impurity suction port 14, and finally all the sundries 20 discharged from the impurity outlet 11 and the screen tail fall into the sundries box 4 below; the auxiliary impurity sucking area is respectively communicated with two second impurity sucking openings 14 on the left side and the right side of the cleaning box 24 through two auxiliary impurity sucking channels 3, the upper ends of the two auxiliary impurity sucking channels 3 are fixedly connected with the shell 16 of the impurity sucking fan 1, and are specifically connected to the rear part of the air inlet (namely the auxiliary impurity sucking area), the lower ends of the auxiliary impurity sucking channels 3 are fixedly connected with the cleaning box 24, so that the impurity sucking fan 1 provides sucking negative pressure for the second impurity sucking openings 14 through the auxiliary impurity sucking channels 3, and a second negative pressure sucking area which is sucked towards the lateral direction is formed inside the cleaning box 24. The auxiliary impurity-sucking channel 3 comprises an upper cylinder body and a lower cylinder body which are mutually communicated, the lower end of the upper cylinder body is fixedly connected with the upper end of the lower cylinder body, the upper cylinder body extends from top to bottom in the left-right direction towards the direction far away from the impurity-sucking fan 1, the lower cylinder body extends from top to bottom in the left-right direction towards the direction close to the cleaning box 24, and accordingly a bending structure is formed in the middle of the auxiliary impurity-sucking channel 3, the bending structure can avoid the vibration cleaning screen 9, and the device is beneficial to integrated arrangement.
The guide plates 13 are arranged on the front side and the rear side of the shell 16, the guide plates 13 on the front side are obliquely arranged forward from top to bottom, the guide plates 13 on the rear side are obliquely arranged backward from top to bottom, and a flaring structure in the front-rear direction is formed at the bottom of the shell 16 so as to enlarge the coverage range of the first negative pressure suction area, reserve enough space for the arrangement of the feeding port 10 and the auxiliary impurity suction area, and enable the negative pressure suction area to effectively suck the screen surface of the whole vibration cleaning screen 9, thereby avoiding the influence of other structural arrangements on the suction effect of the impurity suction fan 1.
In addition, the bottom of accelerating roll cleaning chamber 6 is equipped with the seed outlet, and collection seed case 5 corresponds to be set up in the seed outlet below for collect the seed 21 after the cleaning, and glove box 4 corresponds to be set up in the miscellaneous mouthful 11 below of the play of absorbing and cleaning fan 1, and is located the end of screen tail of vibration cleaning sieve 9, is used for collecting the debris that the cleaning comes out, separates debris and clean seed 21 and deposits, in order to avoid its mixture to influence cleaning efficiency and cleaning effect.
Describing the use process of the wind-screen roller combined type seed cleaning device of the above embodiment with reference to fig. 1, when the seeds 21 are cleaned, the seeds 21 to be cleaned are poured from the feed inlet 10, the seeds 21 and sundries are layered and filtered by the reciprocating vibration of the vibration cleaning screen 9, most sundries (including short stalks, pod shells, light sundries and the like) are pumped into the sundries box 4 from the first suction inlet 15 in cooperation with the suction effect of the first negative pressure suction area, a small part of the sundries with larger particles are filtered by the screen surface of the vibration cleaning screen 9 and conveyed into the sundries box 4 at the screen end under the vibration effect, the screened seeds 21 and the rest sundries 20 which are not cleaned fall into the feed inlet of the accelerating roller cleaning chamber 6 through the screen holes, the seed 21 and the residual sundries 20 are separated and cleaned by the accelerating roller cleaning chamber 6, the seed 21 and the sundries 20 bonded on the seed 21 are separated by the accelerating roller, the sundries are larger in resistance in the falling process due to the size characteristic and aerodynamic characteristic difference of the seed 21 and the sundries 20, the falling speed is slower, the negative pressure suction of the first impurity suction port 15 can also generate a more obvious decelerating effect on the sundries, the friction force generated by the accelerating roller and the seed 21 is larger, the accelerating effect on the seed is more obvious, the three effects are accumulated, the separating and layering effects of the seed 21 and the sundries 20 are greatly improved, finally, the residual sundries 20 are pulled out into the sundries box 4 from the second impurity suction port 14, and the clean seed 21 falls into the seed collection box 5 at the lower part of the cleaning box 24, so that the whole cleaning process is completed.
According to the wind screen roller combined seed cleaning device, the impurity suction fan 1, the vibration cleaning screen 9 and the accelerating roller cleaning chamber 6 are integrally arranged, so that the suction effect of the impurity suction fan 1 and the vibration screening effect of the vibration cleaning screen 9 and the separation accelerating effect of the accelerating roller are mutually promoted, the whole size of the device is reduced, the cleaning efficiency and the cleaning effect are improved, and the cleaning performance and the practicability of the cleaning device are greatly improved.
Of course, the wind screen roller combined seed cleaning device of the present invention is not limited to the above-described embodiments, and several other examples of wind screen roller combined seed cleaning devices based on the design concept of the present invention are provided herein, and the examples are as follows:
in other embodiments of the air screen roller combination seed cleaning device, the differences from the above embodiments are: the impurity sucking fan can also be arranged at other positions on the frame, for example, the impurity sucking fan is arranged on the side face of the vibration cleaning sieve, the first impurity sucking port is correspondingly arranged above the vibration cleaning sieve, and the main impurity sucking area of the impurity sucking fan is communicated with the first impurity sucking port through the impurity sucking channel to provide suction negative pressure for the first negative pressure suction area.
In other embodiments of the air screen roller combination seed cleaning device, the differences from the above embodiments are: the second gettering ports may be provided only in one, and correspondingly, may be provided on the front side wall or the rear side wall of the purge bin.
In other embodiments of the air screen roller combination seed cleaning device, the differences from the above embodiments are: the air inlets of the impurity-sucking fans can be arranged in a plurality of ways and can be arranged at other positions of the shell, for example, the number of the air inlets is two, the air inlets are arranged on the side face of the shell, no movable air door is needed to be arranged, one air inlet forms a main impurity-sucking area, the other air inlet forms an auxiliary impurity-sucking area, and the first impurity-sucking opening and the second impurity-sucking opening are respectively communicated.
In other embodiments of the air screen roller combination seed cleaning device, the differences from the above embodiments are: the shell of the impurity sucking fan is also not provided with an auxiliary impurity sucking channel, but is communicated with the auxiliary impurity sucking area and the second impurity sucking port through a hose way, so that suction negative pressure is provided for the second impurity sucking port.
In other embodiments of the air screen roller combination seed cleaning device, the differences from the above embodiments are: the structures at the first and second gettering ports may be not flared structures, but may be conventional straight port structures, and the sub-gettering channels may be long straight or curved pipes without bending structures.
In other embodiments of the air screen roller combination seed cleaning device, the differences from the above embodiments are: the seed collection box and the sundry box are not required to be arranged, the seed after cleaning is directly collected by the cleaning box, the distance between the seed outlet of the cleaning box and the impurity outlet of the impurity suction fan is increased, and impurities are directly discharged from the impurity outlet.
The above description is only a preferred embodiment of the present invention, and the patent protection scope of the present invention is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a wind sieve roller combination formula seed cleaning plant, includes frame (2), feed inlet (10), vibration cleaning sieve (9) and acceleration roller cleaning chamber (6), acceleration roller cleaning chamber (6) are including cleaning case (24) and a plurality of acceleration roller, and cleaning case (24) top is equipped with the feed inlet, acceleration roller horizontal arrangement is in the feed inlet below, its characterized in that:
the device comprises a vibrating screen (9), and is characterized by further comprising a gettering fan (1), wherein the gettering fan (1) comprises a shell (16), a first gettering port (15) facing the screen surface of the vibrating screen (9) is arranged at the bottom of the shell (16), a first negative pressure pumping area is formed on the screen surface of the vibrating screen (9) by the first gettering port (15), and a feeding port is arranged below the vibrating screen (9) and upwards corresponds to the first gettering port (15); a second impurity sucking port (14) is arranged on the side wall of the cleaning box (24), and the second impurity sucking port (14) is positioned below the accelerating roller so as to form a second negative pressure sucking area which sucks in the lateral direction in the cleaning box (24);
in use, the first negative pressure suction zone is used for sucking sundries (20) separated by the vibration cleaning sieve (9), the accelerating roller is used for separating seeds (21) falling through sieve holes of the vibration cleaning sieve (9) from the rest sundries (20) and accelerating the falling speed of the seeds (21) and the sundries (20), and the second negative pressure suction zone is used for sucking sundries (20) in the cleaning box (24);
a shell (16) of the impurity sucking fan (1) is provided with an auxiliary impurity sucking channel (3), and the auxiliary impurity sucking channel (3) is communicated with the second impurity sucking port (14) to provide sucking negative pressure for the second impurity sucking port (14);
the utility model provides a novel vibrating screen (9), including the casing (16) of noise absorbing fan (1), there is the air intake bottom, the air intake includes main noise absorbing region and vice noise absorbing region, main noise absorbing region forms first noise absorbing mouth (15), vice noise absorbing region is passed through vice noise absorbing passageway (3) intercommunication second noise absorbing mouth (14), vice noise absorbing passageway (3) are including upper cylinder and lower barrel that are linked together, the upper end of upper cylinder and the upper end fixed connection of lower barrel, the axis direction of definition accelerating roller is the fore-and-aft direction, the arrangement direction of accelerating roller is the left-right direction, upper cylinder top-down is in the left-right direction orientation towards the direction of keeping away from noise absorbing fan (1) extension, lower barrel top-down is in the left-right direction towards the direction that is close to cleaning box (24), thereby in the middle part of vice noise absorbing passageway (3) forms the kink structure, in order to dodge vibrating screen (9).
2. The air screen roller combination seed cleaning device of claim 1, wherein: the number of the second impurity sucking ports (14) is two, and the second impurity sucking ports (14) are respectively arranged on the opposite side walls of the cleaning box (24).
3. The air screen roller combination seed cleaning device of claim 2, wherein: the two second impurity sucking openings (14) are oppositely arranged on the side walls of the cleaning box (24) at the left side and the right side of the accelerating roller, and provide stable negative pressure air flow for the cleaning box (24) so as to better separate seeds (21) from impurities (20).
4. The air screen roller combination seed cleaning device of claim 1, wherein: the movable air door (23) is arranged in the air inlet, the movable air door (23) divides the air inlet into a main impurity-absorbing region and an auxiliary impurity-absorbing region, and the movable air door (23) can be freely adjusted to change the ventilation quantity of the first impurity-absorbing port (15) and the second impurity-absorbing port (14).
5. The air screen roller combination seed cleaning device of claim 1, wherein: the utility model discloses a vibrating screen, including main suction area, auxiliary suction area, impurity fan (1), feeding mouth (10) with impurity fan (1) are in along fore-and-aft direction horizontal arrangement is in vibration screen (9) top, feeding mouth (10) are located the front side of impurity fan (1), main suction area and auxiliary suction area are in along fore-and-aft direction arrangement in the air intake of impurity fan (1), both sides are provided with guide plate (13) respectively around the casing (16) bottom of impurity fan (1), and guide plate (13) top-down forward slope of front side sets up to form the flaring structure in fore-and-aft direction, make the top of whole vibration screen (9) is covered in first negative pressure suction area.
6. The air screen roller combination seed cleaning device of claim 1, wherein: the structure of the auxiliary gettering channel (3) communicated with the second gettering port (14) is a flaring structure, and the radial sectional area of the flaring structure is gradually increased towards the inside of the cleaning box (24) so as to enlarge the coverage range of the second negative pressure pumping area.
7. The air screen roller combination seed cleaning device of claim 1, wherein: the impurity outlet (11) of the impurity suction fan (1) is arranged towards the direction deviating from the feeding inlet (10).
8. The air screen roller combination seed cleaning device of claim 1, wherein: still include collection seed case (5) and glove box (4), the bottom of accelerating roller cleaning chamber (6) is provided with out kind mouth, collection seed case (5) set up the below of going out kind mouth for collect seed (21) after the cleaning, glove box (4) set up miscellaneous mouthful (11) department of play of absorbing and separating fan (1) is used for collecting debris (20) that come out.
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| CN114669478B true CN114669478B (en) | 2023-09-19 |
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| CN114669478A (en) | 2022-06-28 |
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