CN117705538A - Detection processing device and method for heavy metal cadmium content of rice - Google Patents

Abstract

The invention relates to the technical field of heavy metal detection of crops, and discloses a detection processing device and method for heavy metal cadmium content of rice, the detection processing device comprises a processing box and a feed hopper fixedly connected with the outer wall of the top of the processing box, wherein a linkage assembly for driving a feeding mechanism and a vibrating mechanism to operate and enabling a primary grinding roller and a secondary grinding roller to rotate relatively is arranged on the outer wall of the processing box.

Description

Detection processing device and method for heavy metal cadmium content of rice

Technical Field

The application relates to the technical field of crop heavy metal detection, in particular to a detection treatment device and method for rice heavy metal cadmium content.

Background

Cadmium (Cd) is a common toxic heavy metal element and has great harm to the environment and crops. Rice is used as a main grain crop in China, and the problem of cadmium content is paid attention to;

aiming at the related technology, the inventor believes that the existing rice cadmium content detection treatment is complex in operation, needs to be respectively ground and screened, has long operation time and low efficiency, influences the timeliness of detection, and is difficult to meet the requirement of large-scale rapid detection, so that the detection treatment device and method for the heavy metal cadmium content of the rice are provided to solve the problems.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

In order to solve the problems that the existing rice cadmium content detection treatment is performed by grinding and screening step-by-step operation, the operation time is long, the efficiency is low, the detection timeliness is affected, and the large-scale rapid detection requirement is difficult to meet, the application provides a rice heavy metal cadmium content detection treatment device and method.

The application provides a detection processing device and method for the content of heavy metal cadmium in rice, which adopts the following technical scheme:

the utility model provides a detection processing apparatus and method of rice heavy metal cadmium content, includes treatment box and fixed connection the feeder hopper of treatment box top outer wall, the internally mounted of feeder hopper has feed mechanism, feed mechanism is including seting up two branch material chambeies in the feeder hopper is inside, two divide the inner wall in material chamber to rotate and be connected with first pivot, two the outer wall fixedly connected with of first pivot a plurality of branch flitch that are used for dividing the material, the inner wall fixedly connected with fixed frame of treatment box, fixed frame's outer wall fixedly connected with fixing base, fixed frame's outer wall sliding connection has the movable seat, the fixing base with the top outer wall of movable seat is rotated respectively through the roller and is connected with one-level grinding roller and second grinding roller, two the one end of roller is all fixedly connected with worm wheel, fixed frame is close to one side outer wall rotation of worm wheel is connected with worm, the worm is meshed with the two worm gears, the screw threads meshed with the two worm gears are symmetrically and oppositely arranged, an adjusting mechanism for adjusting the distance between the primary grinding roller and the secondary grinding roller is arranged on the outer wall of the fixed frame, a screen plate for screening is arranged on the inner wall of the lower part of the fixed frame of the treatment box, a vibrating mechanism for reciprocating and beating the screen plate to vibrate is arranged on the outer wall of the treatment box, a linkage assembly for driving a feeding mechanism and the vibrating mechanism to operate and enabling the primary grinding roller and the secondary grinding roller to rotate relatively is arranged on the outer wall of the treatment box, the vibrating mechanism comprises a mounting frame fixedly connected with the inner wall of the treatment box, two connecting plates are fixedly connected with the outer walls of the mounting frame, connecting rods are connected with the outer walls of the two connecting plates in a sliding mode, a beating plate is fixedly connected with the top end of each connecting rod and is arranged below the screen plate, the bottom fixedly connected with limiting plate of connecting rod, vibration mechanism still includes the incomplete gear of connecting the mounting bracket outer wall through the rotation of second pivot, the incomplete gear with the tooth's socket of connecting rod outer wall seting up meshes mutually, the second spring is installed to the outer wall that the connecting rod is located between clapping plate and the connecting plate.

Preferably, the inner wall fixedly connected with a plurality of fixed plates of treatment case, two near the treatment case bottom the fixed plate top outer wall fixedly connected with a plurality of telescopic links, screen cloth board fixed connection is in a plurality of the top of telescopic link.

Preferably, a plurality of first springs are fixedly connected to the outer walls of the bottoms of the two fixing plates close to the top of the box, and the bottoms of the first springs are fixedly connected to the outer walls of the top of the screen plate.

Preferably, the outer wall of one side of the treatment box is fixedly provided with a impurity discharging port, the inner wall of the impurity discharging port is hinged with a sealing door, and the impurity discharging port is positioned above the screen plate.

Preferably, the processing box is located the top inner wall fixedly connected with stock guide of one-level grinding roller and second grade grinding roller, the bottom inner wall of processing box has pegged graft and has the collection box, the one end outer wall of collection box runs through the processing box.

Preferably, the adjusting mechanism comprises a threaded rod which is in threaded connection with the inside of the fixed frame, one end of the threaded rod is rotationally connected with the outer side wall of the movable seat, and one end of the threaded rod, which is far away from the movable seat, penetrates through the treatment box and is fixedly connected with the handle.

Preferably, the linkage assembly comprises a driving motor fixedly connected to the outer side wall of the treatment box, a driving wheel is rotatably connected to the outer wall of one side of the treatment box, the output end of the driving motor is fixedly connected to the outer wall of the driving wheel, one end of the worm penetrates through the treatment box and is fixedly connected with a first driven wheel, and a first belt is jointly installed on the outer wall of the driving wheel and the first driven wheel.

Preferably, one end of the two first rotating shafts penetrates through the feeding hopper and is fixedly connected with a second bevel gear, the outer wall of the top of the treatment box is rotationally connected with a third rotating shaft, the outer wall of the third rotating shaft is fixedly connected with two first bevel gears, the two first bevel gears are meshed with the two second bevel gears, one end of the third rotating shaft is fixedly connected with a second driven wheel, and the second driven wheel and the outer wall of the first driven wheel are jointly provided with a second belt.

Preferably, the outer wall of one side of the treatment box is rotationally connected with a fourth rotating shaft, one end of the fourth rotating shaft is fixedly connected with a third driven wheel, a third belt is commonly installed on the outer wall of the third driven wheel and the outer wall of the driving wheel, the other end of the fourth rotating shaft is fixedly connected with a first bevel gear, one end, far away from the incomplete gear, of the second rotating shaft penetrates through the treatment box and is fixedly connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.

The invention also provides a detection treatment method for the content of the heavy metal cadmium in the rice, which comprises the following steps:

firstly, adding a large amount of rice samples to be detected into the interior of a feed hopper at one time, then driving two first rotating shafts to drive a plurality of distributing plates to rotate through a linkage assembly, and distributing the rice samples stacked in the feed hopper to continuously and stably convey the rice samples to the inner cavity of a processing box.

And step two, the power of a driving motor in the linkage assembly synchronously drives the primary grinding roller and the secondary grinding roller to rotate relatively, so that the rice samples falling into the inner cavity of the treatment box are ground.

Step three, through adjustment mechanism, turning handle, drive threaded rod is rotatory, drives and removes the seat and remove, adjusts the interval between second grade grinding roller and the one-level grinding roller then to make the device can grind out the material particulate matter of different thickness.

Step four, the ground material particles fall to the surface of the screen plate, the linkage assembly synchronously drives the vibration mechanism to operate, and then drives the beating plate to reciprocally hit the screen plate, so that the screen plate vibrates, the material particles are screened, qualified particles fall into the collecting box, and impurities or enlarged particles are discharged through the impurity discharging port.

And fifthly, pulling the collection box, drawing the collection box out of the treatment box, and uniformly collecting and detecting the ground and screened materials.

And step six, adding a proper amount of acid into the ground sample in the collection box for treatment so as to release cadmium element in the sample.

And seventhly, placing the acidized sample into a cadmium content detector for detecting the cadmium content, and processing and analyzing the detected data by a data processing module in the cadmium content detector to obtain a cadmium content result.

In summary, the present application includes the following beneficial technical effects:

1. through the feeding mechanism, when a plurality of distributing plates rotate, rice in the feeding hopper stably falls down and enters between the first-stage grinding roller and the second-stage grinding roller to be crushed and ground, so that the smoothness of discharging and the grinding stability are ensured, and a large number of stable and continuous discharging treatments on rice samples are realized at one time;

2. through the setting adjustment mechanism of fixed frame outer wall, can drive and remove the seat to adjust the interval between second grade grinding roller and the one-level grinding roller, make the device can grind out the material particulate matter of different thickness, thereby adapt to the detection demand of different material particles, improved the detection adaptability of device.

3. Through the vibration mechanism who sets up, can drive to beat the board and beat the sieve plate reciprocally, under the cooperation of a plurality of first springs again, the sieve plate produces the vibration, will fall to the material particulate matter on sieve plate surface and screen, the material particulate matter will fall into through the filtration of sieve plate and collect in the collection box and detect, and great impurity in the material particulate matter then can't fall through the sieve plate, impurity is discharged from the trash outlet this moment, effectively improve the cleaning efficiency before the rice detects, simplify the operation step.

4. Through the linkage subassembly that sets up, can synchronous drive feed mechanism carry out continuous stable pay-off, one-level grinding roller and second grade grinding roller relative rotation grind the rice sample, vibration mechanism drive beats the reciprocating sieve screen board of beating of board and filters to realize feeding, grinding and screening when the rice sample cadmium content detects the processing, operation integration is automatic, easy operation, convenient to use effectively promotes treatment effeciency, ensures the timeliness of detecting, can satisfy the demand of large-scale short-term test.

Drawings

FIG. 1 is an overall schematic of an embodiment of the application;

FIG. 2 is a first internal cross-sectional view of an embodiment of the application;

FIG. 3 is a second internal cross-sectional view of an embodiment of the application;

FIG. 4 is a first rear interior cross-sectional view of an embodiment of the application;

FIG. 5 is a second rear interior cross-sectional view of an embodiment of the application;

FIG. 6 is a schematic view of the structure of a fixed frame in the embodiment of the application;

fig. 7 is a schematic structural view of a vibration mechanism in the application embodiment.

Reference numerals illustrate: 1. a treatment box; 2. a feed hopper; 3. a fixed frame; 4. a fixing seat; 5. a movable seat; 6. a roll shaft; 7. a primary grinding roller; 8. a secondary grinding roller; 9. a worm wheel; 10. a worm; 11. a threaded rod; 12. a handle; 13. a material guide plate; 14. a material distribution cavity; 15. a first rotating shaft; 16. a material dividing plate; 17. a fixing plate; 18. a telescopic rod; 19. a screen plate; 20. a first spring; 21. a impurity discharging port; 22. sealing the door; 23. a mounting frame; 24. a connecting plate; 25. a connecting rod; 26. beating the plate; 27. a second spring; 28. a second rotating shaft; 29. an incomplete gear; 30. a limiting plate; 31. a collection box; 32. a driving motor; 33. a driving wheel; 34. a first driven wheel; 35. a first belt; 36. a second driven wheel; 37. a second belt; 38. a third rotating shaft; 39. a first bevel gear; 40. a second bevel gear; 41. a third belt; 42. a fourth rotating shaft; 43. a third driven wheel; 44. a first bevel gear; 45. and a second bevel gear.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

The embodiment of the application discloses a detection processing device and method for heavy metal cadmium content of rice. Referring to figures 1-7, a detection processing device and method for heavy metal cadmium content of rice comprises a processing box 1 and a feed hopper 2 fixedly connected with the outer wall of the top of the processing box 1, wherein a feeding mechanism is arranged in the feed hopper 2, the feeding mechanism comprises two material distribution cavities 14 arranged in the feed hopper 2, the inner walls of the two material distribution cavities 14 are rotationally connected with a first rotating shaft 15, the outer walls of the two first rotating shafts 15 are fixedly connected with a plurality of material distribution plates 16 used for distributing materials, the inner walls of the processing box 1 are fixedly connected with a fixed frame 3, the outer walls of the fixed frame 3 are fixedly connected with a fixed seat 4, the outer walls of the fixed frame 3 are slidably connected with a movable seat 5, the top outer walls of the fixed seat 4 and the movable seat 5 are respectively rotationally connected with a primary grinding roller 7 and a secondary grinding roller 8 through roller shafts 6, one ends of the two roller shafts 6 are fixedly connected with worm wheels 9, one side outer wall of the fixed frame 3, which is close to the worm 10 is rotationally connected with one side outer wall of the worm wheel 9, the worm 10 is meshed with the two worm gears 9, the worm 10 is symmetrically and oppositely arranged with the threads meshed with the two worm gears 9, the outer wall of the fixed frame 3 is provided with an adjusting mechanism for adjusting the distance between the primary grinding roller 7 and the secondary grinding roller 8, the inner wall of the treatment box 1 below the fixed frame 3 is provided with a screen plate 19 for screening, the outer wall of the treatment box 1 is provided with a vibrating mechanism for reciprocating and beating the screen plate 19 to vibrate, the outer wall of the treatment box 1 is provided with a linkage assembly for driving the feeding mechanism and the vibrating mechanism to operate and the primary grinding roller 7 and the secondary grinding roller 8 to rotate relatively, the vibrating mechanism comprises a mounting frame 23 fixedly connected with the inner wall of the treatment box 1, the outer wall of the mounting frame 23 is fixedly connected with two connecting plates 24, the outer walls of the two connecting plates 24 are slidably connected with a connecting rod 25, the top end of the connecting rod 25 is fixedly connected with a beating plate 26, the beating plate 26 is located below the screen plate 19, the bottom end of the connecting rod 25 is fixedly connected with a limiting plate 30, the vibrating mechanism further comprises an incomplete gear 29 which is rotationally connected with the outer wall of the mounting frame 23 through a second rotating shaft 28, the incomplete gear 29 is meshed with a tooth slot formed in the outer wall of the connecting rod 25, and a second spring 27 is installed on the outer wall of the connecting rod 25 located between the beating plate 26 and the connecting plate 24.

The inner wall of the treatment box 1 is fixedly connected with a plurality of fixed plates 17, the outer walls of the tops of the two fixed plates 17 close to the bottom of the treatment box 1 are fixedly connected with a plurality of telescopic rods 18, and the screen plate 19 is fixedly connected to the top ends of the telescopic rods 18.

A plurality of first springs 20 are fixedly connected to the bottom outer walls of the two fixing plates 17 close to the top of the treatment box 1, and the bottom ends of the first springs 20 are fixedly connected to the top outer wall of the screen plate 19.

The outer wall of one side of the treatment box 1 is fixedly provided with a trash outlet 21, the inner wall of the trash outlet 21 is hinged with a sealing door 22, and the trash outlet 21 is positioned above the screen plate 19.

The inner wall of the upper part of the treatment box 1, which is positioned on the primary grinding roller 7 and the secondary grinding roller 8, is fixedly connected with a guide plate 13, the inner wall of the bottom of the treatment box 1 is inserted with a collection box 31, and one end outer wall of the collection box 31 penetrates through the treatment box 1.

The adjusting mechanism comprises a threaded rod 11 which is in threaded connection with the inside of the fixed frame 3, one end of the threaded rod 11 is rotationally connected with the outer side wall of the movable seat 5, and one end of the threaded rod 11, which is far away from the movable seat 5, penetrates through the treatment box 1 and is fixedly connected with a handle 12.

The linkage assembly comprises a driving motor 32 fixedly connected to the outer side wall of the treatment box 1, a driving wheel 33 is rotatably connected to the outer wall of one side of the treatment box 1, the output end of the driving motor 32 is fixedly connected to the outer wall of the driving wheel 33, one end of the worm 10 penetrates through the treatment box 1 and is fixedly connected with a first driven wheel 34, and a first belt 35 is installed on the first driven wheel 34 and the outer wall of the driving wheel 33 together.

One end of the two first rotating shafts 15 penetrates through the feed hopper 2 and is fixedly connected with a second bevel gear 40, the outer wall of the top of the processing box 1 is rotatably connected with a third rotating shaft 38, the outer wall of the third rotating shaft 38 is fixedly connected with two first bevel gears 39, the two first bevel gears 39 are meshed with the two second bevel gears 40, one end of the third rotating shaft 38 is fixedly connected with a second driven wheel 36, and the second driven wheel 36 and the outer wall of the first driven wheel 34 are jointly provided with a second belt 37.

The outer wall of one side of the treatment box 1 is rotationally connected with a fourth rotating shaft 42, one end of the fourth rotating shaft 42 is fixedly connected with a third driven wheel 43, a third belt 41 is jointly installed on the outer wall of the third driven wheel 43 and the outer wall of the driving wheel 33, the other end of the fourth rotating shaft 42 is fixedly connected with a first bevel gear 44, one end of the second rotating shaft 28, which is far away from the incomplete gear 29, penetrates through the treatment box 1 and is fixedly connected with a second bevel gear 45, and the second bevel gear 45 is meshed with the first bevel gear 44.

The implementation principle of the detection processing device and the detection processing method for the content of the heavy metal cadmium in the rice provided by the embodiment of the application is as follows: when the rice sample to be detected is added into the feed hopper 2 in a large amount at one time, then the driving motor 32 is started through the linkage assembly, the output shaft of the driving motor 32 drives the driving wheel 33 to rotate, at the moment, the driving wheel 33 drives the first driven wheel 34 to rotate through the first belt 35, the second driven wheel 36 is driven to rotate through the second belt 37 when the first driven wheel 34 rotates, the second driven wheel 36 drives the two first bevel gears 39 to rotate through the third rotating shaft 38, the two first bevel gears 39 drive the second bevel gears 40 meshed with the two first bevel gears 39 to rotate, the two second bevel gears 40 drive the two first rotating shafts 15 to rotate, the two first rotating shafts 15 drive the plurality of distributing plates 16 to rotate for distributing, the rice sample piled up in the feed hopper 2 is continuously and stably conveyed to the inner cavity of the processing box 1, and the fallen rice sample is guided between the first-stage grinding roller 7 and the second-stage grinding roller 8 through the guide plate 13;

when the driving wheel 33 drives the first driven wheel 34 to rotate through the first belt 35, the first driven wheel 34 drives the worm 10 to rotate on the outer side wall of the fixed frame 3, the worm 10 drives the two roller shafts 6 meshed with the worm 10 to rotate, and as the threads of the worm 10 meshed with the two roller shafts 6 are symmetrically and oppositely arranged, the two roller shafts 6 drive the relative rotation under the rotation of the worm 10, the two roller shafts 6 respectively drive the primary grinding roller 7 and the secondary grinding roller 8 to rotate relatively so as to grind rice samples;

in the grinding process, a detector can rotate the handle 12 at any time, the handle 12 drives the threaded rod 11 to rotate, so that the threaded rod 11 rotates on the inner wall of the fixed frame 3, the threaded rod 11 is driven to push or pull the movable seat 5 to slide on the inner wall of the fixed frame 3, the distance between the secondary grinding roller 8 and the primary grinding roller 7 is further adjusted, and notably, the secondary grinding roller 8 can drive the worm wheel 9 to move on the outer wall of the worm 10 when moving, and the worm wheel 9 can be meshed with the worm 10 all the time when moving on the outer wall of the worm 10, so that the worm wheel 9 is matched with the meshing of the worm 10 to drive the secondary grinding roller 8 to continuously rotate when being driven by the secondary grinding roller 8 to move, and therefore, the device can grind material particles with different thicknesses;

while the driving wheel 33 rotates, the third driven wheel 43 is driven to rotate by the third belt 41, when the third driven wheel 43 drives the fourth rotating shaft 42 to rotate, the first bevel gear 44 is driven to rotate by the rotation of the fourth rotating shaft 42, at this time, the first bevel gear 44 drives the second bevel gear 45 meshed with the first bevel gear 44 to rotate, the second bevel gear 45 drives the incomplete gear 29 to rotate by the second rotating shaft 28, when the incomplete gear 29 rotates, the incomplete gear 29 is meshed with a tooth slot on the outer wall of the connecting rod 25, the connecting rod 25 drives the beating plate 26 to move downwards, the connecting rod 25 cooperates with the connecting plate 24 to squeeze the second spring 27, so that the second spring 27 deforms to generate elasticity, and the incomplete gear 29 acts reversely on the beating plate 26, when the incomplete gear 29 continuously rotates and the teeth on the outer surface of the incomplete gear are separated from tooth grooves on the outer wall of the connecting rod 25 to rotate, the beating plate 26 moves upwards rapidly to hit the screen plate 19 under the action of the elastic force of the second springs 27, the screen plate 19 vibrates under the action of the elastic force of the first springs 20, the material particles falling above the screen plate 19 are screened and vibrated, screening efficiency is improved, meanwhile, particles just clamped in the filter holes of the screen plate 19 can be vibrated to prevent blockage, the material particles fall into the collecting box 31 to be collected and detected through the filtration of the screen plate 19, larger impurities in the material particles cannot fall through the screen plate 19, the sealing door 22 is opened, and the impurities are slowly discharged from the impurity discharging port 21 under the vibration of the screen plate 19;

finally, when the rice samples are ground and screened, the collection box 31 is pulled out from the treatment box 1, and then the material particles in the collection box can be collected and detected.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a detection processing apparatus of rice heavy metal cadmium content, includes treatment case (1) and fixed connection feeder hopper (2) of treatment case (1) top outer wall, its characterized in that: the inside of feeder hopper (2) is equipped with feed mechanism, feed mechanism is including seting up two branch material chamber (14) inside feeder hopper (2), two the inner wall in branch material chamber (14) rotates and is connected with first pivot (15), two the outer wall fixedly connected with of first pivot (15) is used for dividing flitch (16) of material, the inner wall fixedly connected with fixed frame (3) of processing case (1), the outer wall fixedly connected with fixing base (4) of fixed frame (3), the outer wall sliding connection of fixed frame (3) has movable seat (5), fixing base (4) with the top outer wall of movable seat (5) is connected with one-level grinding roller (7) and second grade grinding roller (8) through roller (6) rotation respectively, and one end of two roller (6) all fixedly connected with worm wheel (9), the outer wall of one side that fixed frame (3) is close to branch material is connected with worm (10), worm (10) and two worm wheel (9) mesh mutually, worm wheel (10) and worm wheel (9) are installed two worm wheel (9) and are mutually engaged with each other, two worm wheel (9) are installed respectively with grinding roller (8) the grinding mechanism is mutually engaged with one-level grinding roller (8), the device is characterized in that a screen plate (19) for screening is arranged on the inner wall of the lower part of the fixed frame (3) of the treatment box (1), a vibrating mechanism for beating the screen plate (19) to vibrate is arranged on the outer wall of the treatment box (1), and a linkage assembly for driving a feeding mechanism and the vibrating mechanism to operate and enabling the primary grinding roller (7) and the secondary grinding roller (8) to rotate relatively is arranged on the outer wall of the treatment box (1);

the utility model provides a vibrating mechanism includes mounting bracket (23) of fixed connection processing case (1) inner wall, the outer wall fixedly connected with of mounting bracket (23) two connecting plates (24), two the outer wall sliding connection of connecting plate (24) has connecting rod (25), the top fixedly connected with of connecting rod (25) beats board (26), beat the below that board (26) are located screen plate (19), the bottom fixedly connected with limiting plate (30) of connecting rod (25), vibrating mechanism still includes incomplete gear (29) through second pivot (28) swivelling joint mounting bracket (23) outer wall, incomplete gear (29) with tooth's socket that connecting rod (25) outer wall was seted up meshes, second spring (27) are installed to the outer wall that connecting rod (25) are located between beating board (26) and connecting plate (24).

2. The detection processing device for the content of heavy metal cadmium in rice according to claim 1, wherein: the inner wall fixedly connected with a plurality of fixed plates (17) of processing case (1), two near processing case (1) bottom fixed plate (17) top outer wall fixedly connected with a plurality of telescopic links (18), screen cloth board (19) fixed connection is in a plurality of the top of telescopic link (18).

3. The detection processing device for the content of heavy metal cadmium in rice according to claim 2, wherein: a plurality of first springs (20) are fixedly connected to the outer walls of the bottoms of the two fixing plates (17) close to the top of the treatment box (1), and the bottoms of the first springs (20) are fixedly connected to the outer walls of the tops of the screen plates (19).

4. The detection processing device for the content of heavy metal cadmium in rice according to claim 1, wherein: the outer wall of one side of the treatment box (1) is fixedly provided with a trash outlet (21), the inner wall of the trash outlet (21) is hinged with a sealing door (22), and the trash outlet (21) is positioned above the screen plate (19).

5. The detection processing device for the content of heavy metal cadmium in rice according to claim 1, wherein: the processing box (1) is located the top inner wall fixedly connected with stock guide (13) of one-level grinding roller (7) and second grade grinding roller (8), the bottom inner wall of processing box (1) has pegged graft and has collection box (31), the one end outer wall of collection box (31) runs through processing box (1).

6. The detection processing device for the content of heavy metal cadmium in rice according to claim 1, wherein: the adjusting mechanism comprises a threaded rod (11) which is in threaded connection with the inside of the fixed frame (3), one end of the threaded rod (11) is rotationally connected with the outer side wall of the movable seat (5), and one end of the threaded rod (11) away from the movable seat (5) penetrates through the treatment box (1) and is fixedly connected with a handle (12).

7. The detection processing device for the content of heavy metal cadmium in rice according to claim 1, wherein: the linkage assembly comprises a driving motor (32) fixedly connected to the outer side wall of the treatment box (1), a driving wheel (33) is rotatably connected to the outer wall of one side of the treatment box (1), the output end of the driving motor (32) is fixedly connected to the outer wall of the driving wheel (33), one end of the worm (10) penetrates through the treatment box (1) and is fixedly connected with a first driven wheel (34), and a first belt (35) is jointly installed on the outer wall of the driving wheel (33) together with the first driven wheel (34).

8. The detection processing device for the content of heavy metal cadmium in rice according to claim 7, wherein: one end of two first pivot (15) runs through feeder hopper (2) and fixedly connected with second bevel gear (40), the top outer wall rotation of processing case (1) is connected with third pivot (38), the outer wall fixedly connected with two first bevel gears (39) of third pivot (38), two first bevel gears (39) with two second bevel gear (40) mesh, the one end fixedly connected with second of third pivot (38) follows driving wheel (36), second from driving wheel (36) and first from outer wall from driving wheel (34) install second belt (37) jointly.

9. The detection processing device for the content of heavy metal cadmium in rice according to claim 8, wherein: one side outer wall rotation of processing case (1) is connected with fourth pivot (42), the one end fixedly connected with third from driving wheel (43) of fourth pivot (42), third from driving wheel (43) with third belt (41) are installed jointly to the outer wall of driving wheel (33), the other end fixedly connected with first bevel gear (44) of fourth pivot (42), the one end that incomplete gear (29) was kept away from in second pivot (28) runs through processing case (1) and fixedly connected with second bevel gear (45), second bevel gear (45) with first bevel gear (44) mesh.

10. A method for detecting and treating the content of heavy metal cadmium in rice, which uses the detecting and treating device for the content of heavy metal cadmium in rice according to any one of claims 1 to 9, and is characterized by comprising the following steps:

firstly, adding a large amount of rice samples to be detected into the feed hopper (2) at one time, then driving two first rotating shafts (15) to drive a plurality of distributing plates (16) to rotate for distributing through a linkage assembly by starting a driving motor (32), and continuously and stably conveying the rice samples piled in the feed hopper (2) to the inner cavity of the treatment box (1).

And step two, the power of a driving motor (32) in the linkage assembly synchronously drives the first-stage grinding roller (7) and the second-stage grinding roller (8) to rotate relatively, so that the rice samples falling into the inner cavity of the treatment box (1) are subjected to grinding treatment.

Step three, through adjustment mechanism, twist grip (12), drive threaded rod (11) is rotatory, drives and removes seat (5) and remove, then adjusts the interval between second grade grinding roller (8) and the one-level grinding roller (7) to make the device can grind out the material particulate matter of different thickness.

Fourth, the ground material particles fall to the surface of the screen plate (19), the linkage assembly synchronously drives the vibration mechanism to operate, and then the beating plate (26) is driven to reciprocally hit the screen plate (19), so that the screen plate (19) vibrates, the material particles are screened, qualified particles fall into the collecting box (31), and impurities or enlarged particles are discharged through the impurity discharging port (21).

And fifthly, pulling the collection box (31), drawing the collection box (31) out of the treatment box (1), and uniformly collecting and detecting the ground and screened materials.

And step six, adding a proper amount of acid into the sample ground in the collection box (31) for treatment so as to release cadmium element in the sample.

And seventhly, placing the acidized sample into a cadmium content detector for detecting the cadmium content, and processing and analyzing the detected data by a data processing module in the cadmium content detector to obtain a cadmium content result.