CN214262779U - Peanut specific gravity screening machine - Google Patents

Abstract

The application relates to a peanut proportion screening machine, which relates to the technical field of peanut processing and comprises an installation platform, a supporting component arranged on the installation platform and a proportion sieve arranged on the supporting component, wherein a vibration motor is fixed on the proportion sieve, a feeding component is arranged on the installation platform in a matching mode, the two ends of the proportion sieve in the length direction are respectively a feeding end and a discharging end, the vertical height of the feeding end is higher than that of the discharging end, and the discharging end of the proportion sieve is provided with a discharging component; the discharging assembly comprises a distributing baffle, a fine material port, a coarse material port and a waste material port, the distributing baffle is fixed at the discharging end of the gravity sieve, the coarse material port is positioned between the fine material port and the waste material port, and one side of the gravity sieve close to the fine material port is higher than one side of the waste material port; the entry end of smart material mouth is provided with the rejection passageway. The application has the effect of improving the screening quality of the specific gravity screening machine.

Description

Peanut specific gravity screening machine

Technical Field

The application relates to the technical field of peanut processing, in particular to a peanut proportion screening machine.

Background

After the grains are harvested, screening the grains is an indispensable link, because the grains not only contain full and mature seeds, but also contain a plurality of impurities, such as silt, broken ears, glumes and mildewed grains; when the grain yield is bigger, artifical screening efficiency is too low, generally can adopt some machines as the assistance in order to improve screening efficiency.

Chinese patent application No. 201820739346.7 of the related art discloses a grain specific gravity screening machine, which comprises a box body; a feed hopper; the first discharging hopper is arranged on the box body; the filter mechanism comprises a first filter screen, a fixing screw, a wave plate, a circular shaft, a second filter screen, a third filter screen and filter holes; the second discharge hopper is arranged on the box body; the third discharge hopper is arranged on the box body, and the side surface of the second filter screen is fixedly connected with the third discharge hopper; the driving mechanism is arranged on the box body and comprises a first belt pulley, a belt, a second belt pulley and a motor; the discharging plate is installed on the box body, and the side face of the third discharging hopper is fixedly connected with the discharging plate.

In view of the above-mentioned related art, the inventors consider that the following defects exist in the use process: the grain proportion screening machine is easily limited by the aperture of the filter screen in the screening process, so that the screening effect is not ideal.

SUMMERY OF THE UTILITY MODEL

In order to improve the screening quality of the specific gravity screening machine, the application provides a peanut specific gravity screening machine.

The peanut specific gravity screening machine adopts the following technical scheme:

a peanut specific gravity screening machine comprises an installation table, a support assembly installed on the installation table and a specific gravity screen installed on the support assembly, wherein a vibration motor is fixed on the specific gravity screen; the discharging assembly comprises a distributing baffle, a fine material port, a coarse material port and a waste material port, the distributing baffle is fixed at the discharging end of the gravity sieve, the coarse material port is positioned between the fine material port and the waste material port, and one side of the gravity sieve close to the fine material port is higher than one side of the waste material port; the entry end of smart material mouth is provided with the rejection passageway.

By adopting the technical scheme, a worker can send peanuts into the specific gravity sieve by starting the vibrating motor, the specific gravity sieve can sieve peanuts with different qualities due to the fact that mildewed and shriveled peanuts lose water and is light in weight, finally, the plump peanuts can enter the concentrate opening close to the side with the higher discharge end of the specific gravity sieve, and the mildewed and shriveled peanuts can enter the waste opening close to the side with the lower discharge end of the specific gravity sieve; partial peanuts which are not completely screened enter a middle coarse material port, and workers can screen the peanuts discharged from the coarse material port again; simultaneously, because the rejection passageway of the entry end of smart material mouth, the peanut can carry out rejection through the rejection passageway before getting into the smart material mouth and handle to the ejection of compact quality of peanut has been improved.

Optionally, the support assembly includes a fixing frame, and the fixing frame includes a fixing frame, a connecting plate, a fixing plate, and a plurality of reset rib plates; the connecting plate is fixedly connected to the fixing frame, the fixing plate is fixedly connected to the mounting table, one end of the reset rib plate is fixedly connected to the fixing plate, the other end of the reset rib plate is fixedly connected to the connecting plate, and the fixing frame is not in contact with the mounting table.

Through adopting above-mentioned technical scheme, a plurality of gusset that reset constantly take place deformation and reset under vibrating motor's vibration for the proportion sieve constantly takes place reciprocating motion, simultaneously, because fixed frame and mount table non-contact, thereby improved vibrating motor's vibration effect.

Optionally, the support assembly further comprises a vibration reduction bracket and a buffer spring, one end of the buffer spring is fixed to the connecting plate, and the other end of the buffer spring is fixed to the fixing plate; the vibration reduction supports are distributed on the side wall of the mounting table and comprise spring frames and vibration reduction springs, and the spring frames are fixedly connected to the side wall of the mounting table; one end of the damping spring is fixed on the fixing frame, and the other end of the damping spring is fixed on the spring frame.

By adopting the technical scheme, when the reset rib plate deforms, the buffer spring can reduce the deformation amplitude of the reset rib plate, so that the probability of sudden damage of the reset rib plate is reduced; the vibration amplitude of the vertical direction of the frame can be fixed on one hand to the damping spring, and on the other hand, the supporting pressure of the reset rib plate is reduced, so that the damage probability of the reset rib plate is further reduced.

Optionally, a counterweight plate is fixedly arranged between the specific gravity screen and the fixing frame.

By adopting the technical scheme, when the vibrating motor vibrates, the counterweight plate can reduce the vibration frequency of the vibrating motor and the vibration amplitude in the vertical direction, the probability of peanut bouncing is reduced, and the using effect of the gravity screen is improved.

Optionally, a blowing box is arranged at the discharging assembly, a fan is arranged in the blowing box, an air outlet of the blowing box is located at a feeding end of the fine material opening, and the blowing direction of the blowing box is consistent with the arrangement direction of the fine material opening, the coarse material opening and the waste material opening.

Through adopting above-mentioned technical scheme, the air-out size of case of blowing can be adjusted through the control box to the staff, and before the peanut got into smart material mouth and coarse fodder mouth, the case of blowing can be blown into the waste gate with the peanut that goes mildy and shrivelled, has further improved the screening effect of specific gravity sieve.

Optionally, the top of specific gravity sieve is provided with the shield, the lateral wall of shield is fixed with the support column, the one end that the shield was kept away from to the support column is fixed in the mount table, one side that the shield was kept away from the specific gravity sieve is provided with the exhaust column, the inside of exhaust column and the inside intercommunication of specific gravity sieve, the soft dustproof cloth that connects of fixedly connected with between shield and the specific gravity sieve.

Through adopting above-mentioned technical scheme, the shield cooperation is soft to be connect dustproof cloth and exhaust column, can reduce the loss of the inside dust of specific gravity sieve, has improved the air quality in factory.

Optionally, a plurality of observation windows are fixed on the side wall of the dustproof cover, and an illuminating lamp is fixed on the inner wall of the dustproof cover.

Through adopting above-mentioned technical scheme, the staff can open the light and pass through the operating condition in the ratio heavy sieve at any time of observation window, if appear unusually in the ratio heavy sieve, make things convenient for the staff in time to make maintenance and adjustment.

Optionally, the pay-off subassembly includes feed chute, bucket elevator and reflux conveyor, the feed chute opening is upwards, bucket elevator one end is located inside the feed chute, the one end that the feed chute was kept away from to the bucket elevator is located the feed end of specific gravity sieve, reflux conveyor's one end is located the below of coarse fodder mouth, reflux conveyor's the other end runs through the inside of mount table and is located the feed chute top.

Through adopting above-mentioned technical scheme, the feed chute cooperation bucket elevator can be so that the feeding of ratio heavy sieve is more high-efficient, and simultaneously, the backward flow conveyer can directly send into the feed chute again with the peanut of coarse fodder mouth, reduces staff's work load.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the feeding assembly feeds peanuts into the specific gravity sieve, and the specific gravity sieve can sieve peanuts with different qualities due to the fact that mildewed and shriveled peanuts lose water and is light in weight, and finally, the plump peanuts can enter the concentrate port close to the side with the higher discharge end of the specific gravity sieve, and the mildewed and shriveled peanuts can enter the waste port close to the side with the lower discharge end of the specific gravity sieve; partial peanuts which are not completely screened enter a middle coarse material port, and workers can screen the peanuts discharged from the coarse material port again; meanwhile, due to the rejection channel at the inlet end of the fine material port, the peanuts can be subjected to rejection treatment through the rejection channel before entering the fine material port, so that the discharge quality of the peanuts is improved;

2. before the peanuts enter the fine material port and the coarse material port, the air blowing box can blow moldy and shriveled peanuts into the waste material port, so that the screening effect of the specific gravity screen is further improved; meanwhile, the peanut at the coarse opening is directly fed into the feeding end of the feeding assembly again by the backflow conveyor, so that the workload of workers is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic view of the fixing frame.

Fig. 3 is a partial structural view of the embodiment of the present application before the protective cover is installed.

Description of reference numerals: 1. an installation table; 11. a support pillar; 2. a support assembly; 21. a fixed mount; 211. a fixing frame; 212. a fixing plate; 213. resetting the rib plate; 214. a connecting plate; 22. a vibration damping support; 221. a spring holder; 222. a damping spring; 23. a buffer spring; 3. a specific gravity sieve; 31. a weight plate; 32. a rejection channel; 4. a control box; 5. a discharge assembly; 51. a material distributing baffle plate; 52. a fine material port; 53. a coarse material port; 54. a waste material port; 6. a feeding assembly; 61. a feed chute; 62. a bucket elevator; 63. a return conveyor; 7. a blow box; 71. a fan; 8. a dust cover; 81. an exhaust pipe; 82. soft-connecting dustproof cloth; 9. and (4) an observation window.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a peanut proportion screening machine. Referring to fig. 1, the peanut specific gravity screening machine comprises a mounting table 1, a supporting component 2 and a specific gravity screen 3 mounted on the supporting component 2, wherein a vibration motor for driving the specific gravity screen 3 to move is fixedly mounted on one side of the specific gravity screen 3 close to the supporting component 2 through a bolt.

Referring to fig. 1, the upper part of the mounting table 1 is a hollow cuboid structure, and supporting legs are integrally formed at each corner part of the mounting table; a control box 4 is fixed on the side wall of the mounting table 1 in a welding mode, and a plurality of control switches used for each electricity utilization module on the peanut specific gravity screening machine are arranged on the control box 4.

Referring to fig. 1 and 2, the support assembly 2 is installed on one side of the mounting table 1 away from the support leg, the support assembly 2 includes a fixing frame 21, the fixing frame 21 includes a fixing frame 211, two fixing plates 212 and a plurality of reset rib plates 213, the two fixing plates 212 are symmetrically arranged at two ends of the mounting table 1, and the fixing plates 212 are fixed on the outer wall of the mounting table 1 through bolts; the fixing frame 211 is coaxially arranged with the mounting table 1, one side of the fixing plate 212 far away from the bottom of the mounting table 1 is provided with a connecting plate 214 in parallel, and two ends of the connecting plate 214 are fixed on the fixing frame 211 through a metal plate in a welding manner; the gusset 213 that resets is the rectangular plate, and a length direction of the gusset 213 that resets and the length direction of fixed plate 212's an contained angle is for being greater than the acute angle of forty-five degrees, a plurality of gusset 213 equidistance and parallel arrangement that reset, and the both ends of the gusset 213 that resets set up connecting portion, and the connecting portion of the one end of the gusset 213 that resets is fixed in connecting plate 214 through the bolt, and the connecting portion of the other end passes through the bolt fastening and is fixed in fixed plate 212.

Referring to fig. 1 and 2, in order to reduce the supporting pressure of the reset rib plate 213, the support assembly 2 further includes a plurality of vibration reduction brackets 22, the plurality of vibration reduction brackets 22 are uniformly distributed on both sides of the mounting table 1, each vibration reduction bracket 22 includes a spring frame 221 and a vibration reduction spring 222, and the spring frame 221 is welded and fixed to the mounting table 1; one end of the damping spring 222 is welded and fixed to the spring holder 221, the other end is welded and fixed to the fixing frame 211, and one end of the damping spring 222, which is far away from the spring holder 221, is inclined toward the center of the fixing frame 211.

Referring to fig. 1 and 2, further, in order to reduce the probability of damage caused by sudden change of the shape of the reset rib plate 213 at the moment when the vibration motor is turned on, the support assembly 2 further includes a buffer spring 23, the buffer spring 23 is disposed between the connecting plate 214 and the fixing plate 212, the length direction of the buffer spring 23 is crossed with the length direction of the reset rib plate 213, one end of the buffer spring 23 is welded and fixed to the connecting plate 214, and the other end of the buffer spring 23 is welded and fixed to the fixing plate 212.

Referring to fig. 1 and 3, the specific gravity sieve 3 has a rectangular groove structure with an upward opening, the length direction of the specific gravity sieve 3 is consistent with the length direction of the mounting table 1, and the bottom of the specific gravity sieve 3 is fixed on the upper part of the fixing frame 211 through bolts; one end of the specific gravity sieve 3 in the length direction is a feeding end, the other end of the specific gravity sieve 3 is a discharging end, and the vertical height of the feeding end of the specific gravity sieve 3 is higher than that of the discharging end; the discharge end of the gravity screen 3 is an opening and is provided with a discharge assembly 5, the discharge assembly 5 comprises two distribution baffles 51, a fine material port 52, a coarse material port 53 and a waste material port 54, the distribution baffles 51 are positioned in the rectangular grooves of the gravity screen 3, the distribution baffles 51 are rectangular plates, the surfaces of the distribution baffles are perpendicular to the bottom surface of the gravity screen 3, the middle parts of the distribution baffles 51 are fixed at the bottom of the gravity screen 3 through bolts, and the distribution baffles 51 can rotate and adjust along the bottom surface of the gravity screen 3.

Referring to fig. 1 and 3, the fine material opening 52, the coarse material opening 53 and the waste material opening 54 are arranged side by side along the width direction of the heavy sieve 3, the feeding ends of the fine material opening 52, the coarse material opening 53 and the waste material opening 54 are positioned at the discharging end of the heavy sieve 3 and are communicated with each other, the discharging ends of the fine material opening 52, the coarse material opening 53 and the waste material opening 54 are separated from each other, and the coarse material opening 53 is positioned between the fine material opening 52 and the waste material opening 54; the side of the gravity screen 3 close to the concentrate port 52 is higher than the side of the waste port 54.

When the peanut screening machine is used, a worker controls the starting of the vibration motor through the control box 4 to pour peanuts into the feeding end of the specific gravity sieve 3, the plurality of reset rib plates 213 are continuously deformed and reset under the vibration of the vibration motor, so that the specific gravity sieve 3 continuously vibrates in a reciprocating manner, and the reciprocating motion of the specific gravity sieve 3 can respectively move peanuts with different qualities towards two sides of the reciprocating motion due to the fact that moldy and shriveled peanuts lose water and the weight is light, so that the screening of the peanut qualities is realized; finally, the plump peanuts enter the concentrate opening 52 close to the side higher than the discharge end of the heavy sieve 3, and the moldy and shriveled peanuts enter the waste material close to the side lower than the discharge end of the heavy sieve 3; some of the not yet fully screened peanuts enter the intermediate coarse opening 53 and the operator can re-screen the peanuts exiting the coarse opening 53.

Referring to fig. 1 and 3, in order to improve the use effect of the specific gravity sieve 3, a weight plate 31 is fixedly arranged between the specific gravity sieve 3 and the fixing frame 211, the weight plate 31 is a rectangular plate, one plate surface of the weight plate 31 is abutted against the bottom surface of the specific gravity sieve 3, and the weight plate 31 and the side wall of the specific gravity sieve 3 are both fixed on the supporting frame through bolts; when the vibrating motor vibrates, the weight plate 31 can reduce the vibration frequency of the specific gravity sieve 3 and the vibration amplitude of the specific gravity sieve 3 in the vertical direction, reduce the bounce probability of peanuts and improve the sieving effect of the specific gravity sieve 3.

Referring to fig. 1 and 3, in order to improve the screening efficiency of peanuts, a feeding component 6 is arranged on one side of the mounting table 1 close to the feeding end of the heavy sieve 3, the feeding component 6 comprises a feeding groove 61 and a bucket elevator 62, and the bucket elevator 62 is electrically connected with the control box 4; the feeding groove 61 is arranged at the feeding end of the bucket elevator 62, and a steel frame for supporting and fixing the bucket elevator 62 is arranged in the feeding groove 61; the end of the bucket elevator 62 remote from the feed chute 61 is located at the feed end of the heavy sieve 3.

When the peanut sheller is used, a worker only needs to pour peanuts into the feeding groove 61 and open the switch of the bucket elevator 62 through the control box 4, and the feeding groove on the bucket elevator 62 can continuously feed the peanuts into the specific gravity screen 3.

Referring to fig. 1 and 3, further, in order to improve the peanut screening efficiency, the feeding assembly 6 further comprises a backflow conveyor 63, the backflow conveyor 63 is electrically connected with the control box 4, and one end of the backflow conveyor 63, which penetrates through the inside of the mounting table 1 and is far away from the coarse material opening 53, is communicated with the feeding groove 61; during the use, open the return conveyor 63 through control box 4 control, return conveyor 63 can directly send the peanut of coarse fodder mouth 53 into again in feeding tank 61 of feeding unit 6 to staff's work load has been reduced.

Referring to fig. 1 and 3, further, in order to reduce the probability of foreign matters in the peanuts discharged from the fine material port 52, a rejection channel 32 is arranged at the feed end of the fine material port 52, the length direction of the rejection channel 32 is parallel to the length direction of the specific gravity sieve 3, the rejection channel 32 is a rectangular channel formed by enclosing a magnetic suction plate and two rectangular plates, wherein the rectangular plates are vertically welded at the bottom of the specific gravity sieve 3, the magnetic suction plate is welded at one side of the rectangular plates away from the bottom of the specific gravity sieve 3, and the magnetic suction plate is a strong magnetic magnet; after the iron objects in the factory fall into the peanuts carelessly like screws, the magnetic attraction plate can attract the iron objects in the peanuts in the peanut screening process, so that the damage of the iron objects to other equipment in subsequent peanut processing is reduced, and the screening quality of the peanuts is improved.

Referring to fig. 1 and 3, further, in order to further improve the screening quality of the peanuts, an air blowing box 7 is arranged on the side wall of the fine material opening 52, a fan 71 is arranged in the air blowing box 7, the fan 71 is electrically connected with the control box 4, an air outlet of the air blowing box 7 is located on the side wall of the fine material opening 52, and the air outlet direction of the air outlet is consistent with the arrangement direction of the fine material opening 52, the coarse material opening 53 and the waste material opening 54; the staff can adjust the air-out size of blow case 7 through control box 4, and the discharge end of contrast heavy sieve 3 is bloied, and before the peanut got into smart material mouth 52 and coarse fodder mouth 53, blow case 7 can blow into waste port 54 with the peanut that goes mildy and shriveled.

Referring to fig. 1 and 3, in order to reduce the influence of dust generated by peanut screening vibration on air quality of a factory, a support column 11 is fixedly welded on the side wall of an installation platform 1, the length direction of the support column 11 is perpendicular to the length direction of the installation platform 1, and a dust cover 8 is fixed on one side of the support column 11 far away from the installation platform 1 through a bolt, so that the dust cover 8 is suspended above a specific gravity sieve 3; one side that shield 8 is close to than the heavy sieve 3 feed end is provided with the hopper, and the discharge gate one end welded fastening of hopper is in the upper portion of shield 8, and the inside of specific gravity sieve 3 of hopper switch on, and the feed end of hopper is located the one end that bucket elevator 62 kept away from feed chute 61.

Referring to fig. 1 and 3, an exhaust pipe 81 is arranged on one side of the dust cover 8 far away from the specific gravity sieve 3, the exhaust pipe 81 is used for connecting an external exhaust fan, and the exhaust pipe 81 is communicated with the inside of the dust cover 8; when the dust-removing device is used, dust in the specific gravity screen 3 can be extracted through the exhaust pipe 81, and the air quality in a workshop is improved.

Referring to fig. 1 and 3, be provided with the soft dustproof cloth 82 that connects in the one side that shield 8 is close to specific gravity sieve 3, the border that the soft dustproof cloth 82 that connects will soft the border that connects dustproof cloth 82 through the metal sheet supports respectively in the border of shield 8 and specific gravity sieve 3, and the rethread bolt is fixed in the border of shield 8 and the border of specific gravity sieve 3 with the metal sheet, and soft dustproof cloth 82 that connects has improved the seal of shield 8 to improve the dustproof effect of shield 8.

Referring to fig. 1 and 3, in order to further improve the use effect of the dust cap 8, a plurality of observation windows 9 are fixed on the side wall of the dust cap 8, the observation windows 9 are made of transparent materials, and meanwhile, an illuminating lamp is fixed on the inner wall of the dust cap 8 and is electrically connected with the control box 4; if appear unusually in the ratio sieve 3, the staff can observe the behavior in the ratio sieve 3 at any time through 9 cooperation light in the observation window, if the ratio sieve 3 is inside to appear unusually, make things convenient for the staff in time to make maintenance and adjustment.

The implementation principle of the peanut specific gravity screening machine in the embodiment of the application is as follows: pouring peanuts to be screened into a feeding chute 61; the bucket elevator 62 is started through the control box 4 to send the peanuts into the specific weight sieve 3; the gravity screen 3 starts to perform pre-screening, and a worker adjusts and fixes the material distribution baffle plate 51 by observing the pre-screening condition; after the material distributing baffle 51 is adjusted, the soft-connection dustproof cloth 82 at the discharge end of the specific weight sieve 3 is closed; then, formally screening the peanuts; the worker can collect the peanuts with higher quality at the concentrate port 52; workers can collect moldy and shriveled peanuts at the waste port 54; the peanuts at the raw material port 53 can be returned to the feed chute 61 by a belt conveyor; meanwhile, the air blowing box 7 blows air to blow part of moldy and shriveled peanuts into the waste port 54, so that the screening effect of the gravity screen 3 on the peanuts is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A peanut proportion sieve separator which characterized in that: the automatic feeding device comprises an installation table (1), a supporting component (2) installed on the installation table (1) and a specific gravity screen (3) installed on the supporting component (2), wherein a vibration motor is fixed on the specific gravity screen (3), the installation table (1) is provided with a feeding component (6), two ends of the specific gravity screen (3) in the length direction are respectively a feeding end and a discharging end, the vertical height of the feeding end is higher than that of the discharging end, and the discharging end of the specific gravity screen (3) is provided with a discharging component (5); the discharging assembly (5) comprises a distributing baffle (51), a fine material opening (52), a coarse material opening (53) and a waste material opening (54), the distributing baffle (51) is fixed at the discharging end of the heavy sieve (3), the coarse material opening (53) is positioned between the fine material opening (52) and the waste material opening (54), and one side of the heavy sieve (3) close to the fine material opening (52) is higher than one side of the waste material opening (54); the inlet end of the fine material port (52) is provided with a rejection channel (32).

2. The peanut specific gravity screening machine of claim 1, wherein: the supporting component (2) comprises a fixed frame (21), and the fixed frame (21) comprises a fixed frame (211), a connecting plate (214), a fixed plate (212) and a plurality of reset rib plates (213); connecting plate (214) fixed connection in fixed frame (211), fixed plate (212) fixed connection in mount table (1), rib plate (213) one end fixed connection that resets in fixed plate (212), rib plate (213) other end fixed connection that resets in connecting plate (214), fixed frame (211) and mount table (1) are not contacted each other.

3. The peanut specific gravity screening machine of claim 2, wherein: the supporting assembly (2) further comprises a vibration reduction support (22) and a buffer spring (23), one end of the buffer spring (23) is fixed to the connecting plate (214), and the other end of the buffer spring (23) is fixed to the fixing plate (212); the vibration reduction supports (22) are distributed on the side wall of the mounting table (1), each vibration reduction support (22) comprises a spring frame (221) and a vibration reduction spring (222), and the spring frames (221) are fixedly connected to the side wall of the mounting table (1); one end of the damping spring (222) is fixed on the fixing frame (211), and the other end is fixed on the spring frame (221).

4. The peanut specific gravity screening machine of claim 1, wherein: and a counterweight plate (31) is fixedly arranged between the specific weight screen (3) and the fixed frame (21).

5. The peanut specific gravity screening machine of claim 1, wherein: the discharging component (5) is provided with a blowing box (7), a fan (71) is arranged in the blowing box (7), an air outlet of the blowing box (7) is located at a feeding end of the fine material opening (52), and the blowing direction of the blowing box (7) is consistent with the arrangement direction of the fine material opening (52), the coarse material opening (53) and the waste material opening (54).

6. The peanut specific gravity screening machine of claim 1, wherein: the top of specific gravity sieve (3) is provided with shield (8), the lateral wall of shield (8) is fixed with support column (11), the one end that shield (8) were kept away from in support column (11) is fixed in mount table (1), one side that shield (8) were kept away from specific gravity sieve (3) is provided with exhaust column (81), the inside of exhaust column (81) and the inside intercommunication of specific gravity sieve (3), fixedly connected with soft dust cloth (82) that connects between shield (8) and specific gravity sieve (3).

7. The peanut specific gravity screening machine of claim 6, wherein: the lateral wall of shield (8) is fixed with a plurality of observation windows (9), shield (8) inner wall is fixed with the light.

8. The peanut specific gravity screening machine of claim 1, wherein: pay-off subassembly (6) include feed chute (61), bucket elevator (62) and reflux conveyor (63), feed chute (61) opening is upwards, bucket elevator (62) one end is located inside feed chute (61), the one end that feed chute (61) were kept away from in bucket elevator (62) is located the feed end of specific gravity sieve (3), the one end of reflux conveyor (63) is located the below of coarse fodder mouth (53), the other end of reflux conveyor (63) runs through the inside of mount table (1) and is located feed chute (61) top.

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