Detection device and detection method for aflatoxin in feed raw materials

Abstract

The invention discloses a detection device and a detection method for aflatoxin in feed raw materials, and relates to the technical field of feed detection.The detection device comprises a mounting rack, a screening assembly and a smashing assembly are arranged at the top end of the mounting rack, and a detection assembly is arranged at the bottom end of the smashing assembly; the screening assembly comprises a screening box, a screening frame and an inclined screening plate are arranged in the screening box, the feed raw materials can be screened twice through the screening frame and the inclined screening plate, the impurity content of the feed raw materials screened twice is reduced, the influence of impurities on the detection result is reduced, and the detection efficiency is improved. The accuracy of the detection result is improved, the crushing assembly can crush the feed raw materials into powder, the detected raw material powder can be subjected to component control, and the situation that too much or too little raw material powder falls at a time, and consequently subsequent detection of the feed raw materials is not facilitated is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of feed detection, and in particular to a detection device and a detection method for aflatoxin in feed raw materials. Background Art

[0002] Aflatoxin is a type of toxic secondary metabolite mainly produced by fungi such as Aspergillus flavus and Aspergillus parasiticus. It is widely present in feed raw materials. Feed raw materials refer to various substances used to process and make animal feed. Feed raw materials are generally composed of cereals, such as corn, wheat, rice, etc. Aflatoxin is extremely toxic and poses a serious threat to animal and human health. Therefore, it is necessary to accurately detect the content of aflatoxin in feed raw materials. Fluorescence photometer can detect aflatoxin in raw materials. Aflatoxin will emit fluorescence under specific excitation light. Fluorescence photometer uses this characteristic to detect the content of aflatoxin. The principle is to irradiate the sample with an excitation light source to make aflatoxin produce fluorescence, and then measure the intensity of fluorescence. The content of aflatoxin in the sample is determined based on the relationship between fluorescence intensity and aflatoxin concentration. Fluorescence photometer can directly measure solid samples, such as uniform powder, flakes or block samples with smooth surfaces.

[0003] In the prior art, there is a device for detecting aflatoxin content in feed, such as patent number CN116735560A, which includes a mounting frame, two groups of side panels are mounted on the surface of the mounting frame, a detection box is mounted between the two groups of side panels, a fluorescence photometer is mounted inside the detection box, and a storage box is mounted on the surface of the mounting frame and is located above the detection box. This solution is achieved by setting a discharge port on the storage box, and a rotatable turntable is installed in the storage box, and a sieving port matched with the discharge port is arranged on the turntable. The turntable is further driven by motor A to rotate in the storage box. When a batch of feed is added to the storage box, the sieving port and the discharge port on the turntable are periodically aligned, so that part of the feed can be periodically extracted from the batch of feed and transported to the inside of the detection box, and the aflatoxin content in the transported feed is detected by the fluorescence photometer. At the same time, sampling and testing of batch feed can be performed to improve the detection efficiency.

[0004] Although the above patents can detect aflatoxin in feed, there are still some problems. First, during the production, transportation and storage of feed raw materials, dust, sand and other tiny particles may be mixed in. Physical impurities may affect the uniformity of the sample and the accuracy of the test results. Secondly, it is impossible to control the amount of feed falling from the feed guide tube, which may easily cause too much or too little feed in the feed guide tube to fall at one time, thereby affecting the test results. To this end, the present invention provides a detection device and a detection method for aflatoxin in feed raw materials. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a detection device and method for aflatoxin in feed raw materials, which solves the problem that dust, sand and other tiny particles may be mixed into the feed raw materials during production, transportation and storage, and physical impurities may affect the uniformity of the sample, resulting in unstable or inaccurate signals during detection. Secondly, the amount of feed falling from the feed guide tube cannot be controlled, which easily causes too much or too little feed to fall into the feed guide tube at one time, thereby affecting the detection results.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for detecting aflatoxin in feed raw materials, comprising a mounting frame, a screening component and a crushing component are respectively arranged at the top of the mounting frame, and a detection component is arranged at the bottom of the crushing component;

[0007] The screening assembly comprises a screening box, wherein a screening frame and an oblique screening plate are respectively arranged inside the screening box, a first rotating rod and a second rotating rod are respectively movably penetrated through the outer wall of the screening box, a first cam and a second cam are respectively fixedly installed on the output ends of the first rotating rod and the second rotating rod, a driving wheel and a driven wheel are respectively fixedly installed on one end of the outer wall of the first rotating rod and the second rotating rod, and the outer walls of the driving wheel and the driven wheel are respectively sleeved with belts;

[0008] The detection assembly includes a detection table and an electric slide rail;

[0009] The pulverizing assembly comprises a pulverizing cylinder and a discharge pipe, and the pulverizing cylinder is fixedly connected to the discharge pipe.

[0010] Preferably, the screening box is fixedly connected to the mounting frame, two sliding rods are fixedly installed on both sides of the outer wall of the screening frame, one end of the outer wall of the four sliding rods are movable through the outer wall of the screening box, the outer walls of two of the four sliding rods are sleeved with a second spring, one end of the outer wall of the two second springs is fixedly connected to the screening frame, and the other end of the outer wall of the two second springs is fixedly connected to the inner wall of the screening frame, and the outer wall of the screening frame is fixedly installed with an extrusion plate.

[0011] Preferably, two mounting plates are fixedly mounted on the inner wall of the screening box, two first springs are fixedly mounted on the top of the two mounting plates, the tops of the four first springs are fixedly connected to the oblique screening plate, a through slot is penetrated through one side of the outer wall of the screening box, a material guide plate is fixedly mounted on one end of the outer wall of the oblique screening plate, the material guide plate penetrates the through slot, and the output end of the material guide plate movably penetrates the top of the crushing cylinder.

[0012] Preferably, the top of the screening box is fixedly connected to a feed port, a diverter plate is fixedly installed on the inner wall of the feed port, a first L-shaped plate is fixedly installed on the outer wall of the screening box, a first motor is fixedly installed on the outer wall of the first L-shaped plate, an output end of the first motor passes through the outer wall of the first L-shaped plate and is fixedly connected to the outer wall of the driving wheel, the first cam is arranged on one side of the extrusion plate, and the second cam is arranged at the bottom end of the oblique screening plate.

[0013] Preferably, the crushing barrel is fixedly inserted into the top of the mounting frame, a second motor is fixedly installed on the top of the crushing barrel, an output end of the second motor passes through the top of the crushing barrel and is fixedly installed with a third rotating rod, and a group of crushing blades are fixedly installed on the outer wall of the third rotating rod.

[0014] Preferably, a rotating ball is provided on the inner wall of the discharge pipe, the rotating ball matches the discharge pipe, a rotating shaft movably penetrates the outer wall of the discharge pipe, the rotating shaft is fixedly connected to the rotating ball, and three material containing grooves are opened on the outer wall of the rotating ball.

[0015] Preferably, a second L-shaped plate is fixedly mounted on the outer wall of the discharge pipe, a third motor is fixedly mounted on the outer wall of the second L-shaped plate, and an output end of the third motor passes through the outer wall of the second L-shaped plate and is fixedly connected to one end of the outer wall of the rotating shaft.

[0016] Preferably, the electric slide rail is fixedly connected to the detection table, a detection box is provided at the output end of the electric slide rail, a micro vibration motor is fixedly installed on one side of the outer wall of the detection box, a detection box is fixedly installed on the top of the detection table, and a fluorescence photometer is provided on the top of the inner wall of the detection box.

[0017] The present invention also discloses a method for detecting aflatoxin in feed raw materials, which specifically comprises the following steps:

[0018] S1. Pour the feed raw materials to be tested into the screening box, and use the screening component to screen and filter the feed raw materials twice to remove some impurities and debris in the feed raw materials to prevent these impurities and debris from affecting the subsequent test results of the feed raw materials;

[0019] S2. After screening, the feed raw materials enter the grinding cylinder, and then the grinding component grinds the feed raw materials into powder, which is convenient for subsequent testing, and then the ground feed raw materials are discharged through the discharge pipe;

[0020] S3. The feed raw material powder discharged from the discharge pipe will fall onto the detection table below, and then the detection component will detect aflatoxin on the feed raw material powder, thereby completing the detection of aflatoxin in the feed raw material.

[0021] Beneficial Effects

[0022] The present invention provides a detection device and method for aflatoxin in feed raw materials. Compared with the prior art, the device has the following beneficial effects:

[0023] (1) The detection device and method for aflatoxin in feed raw materials are provided with a screening component. Before the feed raw materials need to be tested, the feed raw materials are introduced into a screening box through a feed inlet. The screening box is provided with a screening frame and an oblique screening plate. The aperture size of the screening holes in the screening frame is set to be larger than the diameter of the feed raw materials. The screening frame can retain large particles of impurities in the screening frame. Then the feed raw materials fall onto the oblique screening plate. The aperture size of the screening holes in the oblique screening plate is set to be smaller than the diameter of the feed raw materials. The feed raw materials will stay on the oblique screening plate, while small particles of impurities and dust will fall. At the same time, the first cam and the second cam will be driven to rotate by turning on the first motor, so that the screening frame will swing left and right, and the oblique screening plate will swing up and down, thereby improving the screening rate of the feed raw materials and preventing the feed raw materials from being blocked during screening. After the feed raw materials are screened twice, the impurity content of the feed raw materials is reduced, and the influence of impurities on the test results is reduced, thereby improving the accuracy of the test results.

[0024] (2) The device and method for detecting aflatoxin in feed raw materials, when the feed raw materials are crushed in the crushing drum and need to be detected, the third motor can be turned on, and the third motor drives the rotating ball to rotate through the rotating shaft. The rotating ball causes the feeding trough to rotate during the rotation process. When the feeding trough rotates to the bottom of the discharge pipe, the raw material powder in the feeding trough will fall, so that the raw material powder can be detected. By setting the feeding trough, the amount of raw material powder to be detected can be controlled to prevent too much or too little raw material powder from falling at one time, which is not conducive to the subsequent detection of the feed raw materials.

[0025] (3) In the detection device and method for aflatoxin in feed raw materials, the raw material powder dropped from the discharge pipe will fall into the detection box, and the raw material powder may accumulate. At this time, the micro-vibration motor can be turned on to generate vibration, which causes the accumulated raw material powder to be gradually flattened. The flattened powder can make the excitation light more evenly irradiate various parts of the sample. When the powder accumulates, the excitation light may not be able to fully penetrate into the interior, resulting in insufficient excitation in some areas, affecting the generation of fluorescence and the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a cross-sectional view of a screening box of the present invention;

[0028] Figure 3 It is a schematic diagram related to the screening component and the crushing component of the present invention;

[0029] Figure 4 It is a partial structural schematic diagram of the screening component of the present invention;

[0030] Figure 5 It is a cross-sectional view of a pulverizing tube of the present invention;

[0031] Figure 6 It is a schematic diagram of the relevant structure of the discharge pipe of the present invention;

[0032] Figure 7 It is a schematic diagram of the relevant structure of the detection component of the present invention.

[0033] In the figure: 1, mounting frame; 2, screening assembly; 21, screening box; 22, feed port; 23, first L-shaped plate; 24, first motor; 25, driving wheel; 26, belt; 27, driven wheel; 28, first rotating rod; 29, second rotating rod; 210, first cam; 211, second cam; 212, mounting plate; 213, first spring; 214, oblique screening plate; 215, guide plate; 216, screening frame; 217, slide bar; 218, second Spring; 219, through slot; 220, extrusion plate; 4, detection assembly; 41, detection table; 42, electric slide rail; 43, detection box; 44, micro vibration motor; 45, detection box; 46, fluorescence photometer; 5, crushing assembly; 51, crushing barrel; 52, second motor; 53, third rotating rod; 54, crushing blade; 55, discharge pipe; 56, rotating ball; 57, material trough; 58, rotating shaft; 59, second L-shaped plate; 510, third motor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The present invention provides two technical solutions:

[0036] See also Figure 1-7 , the present invention provides two technical solutions:

[0037] Embodiment 1

[0038] A device for detecting aflatoxin in feed raw materials, comprising a mounting frame 1, a screening component 2 and a crushing component 5 are respectively arranged at the top of the mounting frame 1, and a detection component 4 is arranged at the bottom of the crushing component 5;

[0039] The screening assembly 2 includes a screening box 21, wherein a screening frame 216 and an oblique screening plate 214 are respectively arranged inside the screening box 21, and a first rotating rod 28 and a second rotating rod 29 are respectively movably penetrated through the outer wall of the screening box 21, and a first cam 210 and a second cam 211 are respectively fixedly installed on the output ends of the first rotating rod 28 and the second rotating rod 29, and a driving wheel 25 and a driven wheel 27 are respectively fixedly installed on one end of the outer wall of the first rotating rod 28 and the second rotating rod 29, and the driving wheel 25 and the driven wheel 27 are respectively provided with a belt 26 on the outer wall of the driving wheel 25 and the driven wheel 27, and when the driving wheel 25 rotates, it will drive the first rotating rod 28 and the first cam 210 to rotate, and the driving wheel 25 can drive the driven wheel 27 and the second rotating rod 29 to rotate through the belt 26, and the second rotating rod 29 can further drive the second cam 211 to rotate;

[0040] The detection assembly 4 includes a detection platform 41 and an electric slide rail 42;

[0041] The pulverizing assembly 5 includes a pulverizing barrel 51 and a discharge pipe 55 . The pulverizing barrel 51 is fixedly connected to the discharge pipe 55 , and the raw material powder in the pulverizing barrel 51 can fall from the discharge pipe 55 .

[0042] In the embodiment of the present invention, the screening box 21 is fixedly connected to the mounting frame 1, two sliding rods 217 are fixedly installed on both sides of the outer wall of the screening frame 216, one end of the outer wall of the four sliding rods 217 is movable through the outer wall of the screening box 21, and the outer wall of two of the four sliding rods 217 is sleeved with a second spring 218, one end of the outer wall of the two second springs 218 is fixedly connected to the screening frame 216, and the other end of the outer wall of the two second springs 218 is fixedly connected to the inner wall of the screening frame 216, and the outer wall of the screening frame 216 is fixedly installed with an extrusion plate 220. When the first cam When the first cam 210 rotates, one end of the extrusion plate 220 will squeeze the extrusion plate 220. After being squeezed, the extrusion plate 220 drives the slide bar 217 and the screening frame 216 to move. When the first cam 210 rotates to the other end, the extrusion plate 220 drives the screening frame 216 to reset under the action of the elastic force of the second spring 218. As the first cam 210 continues to rotate, the screening frame 216 is driven to continuously swing left and right to prevent the feed raw materials in the screening frame 216 from accumulating and blocking the screening holes, thereby improving the screening efficiency of the feed raw materials in the screening frame 216.

[0043] In the embodiment of the present invention, two mounting plates 212 are fixedly installed on the inner wall of the screening box 21, and two first springs 213 are fixedly installed on the tops of the two mounting plates 212. The tops of the four first springs 213 are fixedly connected to the oblique screening plate 214. The second cam 211 will lift the oblique screening plate 214 during the rotation process, and then cooperate with the four first springs 213 to make the oblique screening plate 214 shake up and down, so that the feed raw materials are subjected to a certain vibration, making it easy to disperse the feed raw materials, thereby improving the screening efficiency of the feed raw materials on the oblique screening plate 214. A through hole is opened on one side of the outer wall of the screening box 21 The guide plate 215 is fixedly mounted on one end of the outer wall of the inclined screening plate 214, and the guide plate 215 passes through the through-slot 219. The output end of the guide plate 215 movably passes through the top of the crushing cylinder 51. The top of the inclined screening plate 214 has a certain inclination angle, which will drive the feed raw materials at the top to gradually slide during the up and down shaking process, and then can fall into the crushing cylinder 51 through the guide plate 215. The inclined screening plate 214 will drive the guide plate 215 to shake up and down when it shakes up and down, and the through-slot 219 and the output end of the guide plate 215 movably pass through the top of the crushing cylinder 51, so that the guide plate 215 will not be hindered during the up and down movement.

[0044] In the embodiment of the present invention, the top of the screening box 21 is fixedly connected to the feed port 22, and the inner wall of the feed port 22 is fixedly installed with a diverter plate, which can divert the feed raw materials to prevent the feed raw materials that fall into the screening frame 216 from accumulating. The outer wall of the screening box 21 is fixedly installed with a first L-shaped plate 23, and the outer wall of the first L-shaped plate 23 is fixedly installed with a first motor 24. The output end of the first motor 24 passes through the outer wall of the first L-shaped plate 23 and is fixedly connected to the outer wall of the driving wheel 25. The first cam 210 is arranged on one side of the extrusion plate 220, and the second cam 211 is arranged at the bottom end of the oblique screening plate 214. When the first motor 24 is started, it can drive the driving wheel 25 to rotate.

[0045] In the embodiment of the present invention, the crushing barrel 51 is fixedly inserted at the top of the mounting frame 1, and a second motor 52 is fixedly installed at the top of the crushing barrel 51. The output end of the second motor 52 passes through the top of the crushing barrel 51 and is fixedly installed with a third rotating rod 53. A group of crushing blades 54 are fixedly installed on the outer wall of the third rotating rod 53. The second motor 52 can drive the crushing blades 54 to rotate at a high speed, so that the feed raw materials can be crushed into powder.

[0046] In the embodiment of the present invention, a rotating ball 56 is provided on the inner wall of the discharge pipe 55, and the rotating ball 56 matches the discharge pipe 55. The rotating ball 56 can block the discharge pipe 55 to prevent the raw material powder from falling from the discharge pipe 55. A rotating shaft 58 is movably penetrated through the outer wall of the discharge pipe 55, and the rotating shaft 58 is fixedly connected to the rotating ball 56. The outer wall of the rotating ball 56 is provided with three material containing grooves 57, and the raw material powder in the grinding barrel 51 will fall into the material containing grooves 57.

[0047] In the embodiment of the present invention, a second L-shaped plate 59 is fixedly installed on the outer wall of the discharge pipe 55, and a third motor 510 is fixedly installed on the outer wall of the second L-shaped plate 59. The output end of the third motor 510 passes through the outer wall of the second L-shaped plate 59 and is fixedly connected to one end of the outer wall of the rotating shaft 58. The third motor 510 drives the rotating ball 56 to rotate through the rotating shaft 58, and the rotating ball 56 drives the feeding trough 57 to rotate. When the feeding trough 57 rotates to the bottom, the raw material powder in the feeding trough 57 will fall. By setting the feeding trough 57, the amount of the raw material powder to be detected can be controlled to prevent too much or too little raw material powder from falling at one time, which is not conducive to the subsequent detection of the feed raw materials.

[0048] In the embodiment of the present invention, the electric slide 42 is fixedly connected to the detection table 41, the output end of the electric slide 42 is provided with a detection box 43, a micro vibration motor 44 is fixedly installed on one side of the outer wall of the detection box 43, a detection box 45 is fixedly installed on the top of the detection table 41, and a fluorescence photometer 46 is provided on the top of the inner wall of the detection box 45. The electric slide 42 is a prior art, which can drive the detection box 43 to move into the detection box 45, and the fluorescence photometer 46 is a prior art. The detection principle of the fluorescence photometer 46 is fluorescence photometry, which is a commonly used national standard method. The principle of this method is to use the differences in the fluorescence characteristics of various aflatoxins to determine the content of aflatoxin in the feed raw material powder with a fluorescence photometer 46.

[0049] Embodiment 2

[0050] See also Figure 1-7 The present invention also discloses a method for detecting aflatoxin in feed raw materials, which specifically comprises the following steps:

[0051] S1. Before the feed raw materials need to be tested, the feed raw materials are passed through the feed inlet 22 into the screening box 21. The screening box 21 is provided with a screening frame 216 and an oblique screening plate 214. The aperture size of the screening holes in the screening frame 216 is set to be larger than the diameter of the feed raw materials. The screening frame 216 can leave large particles of impurities in the screening frame 216. Then the feed raw materials fall onto the oblique screening plate 214. The aperture size of the screening holes in the oblique screening plate 214 is set to be smaller than the diameter of the feed raw materials. The feed raw materials will stay on the oblique screening plate 214, while small particles of impurities and dust will fall. At the same time, the first motor 24 is turned on. The first motor 24 drives the driving wheel 25 to rotate and the first rotating rod 28 to rotate, and then the belt 26 and the driven wheel 2 7 drives the second rotating rod 29 to rotate, and then drives the first cam 210 and the second cam 211 to rotate, so that the screening frame 216 swings left and right, and the oblique screening plate 214 swings up and down, thereby improving the screening rate of the feed raw materials and preventing the feed raw materials from being blocked during screening. After the feed raw materials are screened twice, the impurity content of the feed raw materials is reduced, and the influence of impurities on the detection results is reduced, thereby improving the accuracy of the detection results. Since the top of the oblique screening plate 214 has a certain inclination angle, the feed raw materials on the oblique screening plate 214 will gradually slide down to the guide plate 215 as the oblique screening plate 214 swings up and down, and the feed raw materials on the guide plate 215 can then slide into the crushing barrel 51, which is convenient for the feed raw materials to be crushed;

[0052] S2. After the feed material enters the grinding barrel 51, the second motor 52 is turned on. The second motor 52 drives the third rotating rod 53 and the grinding blade 54 to rotate. During the rotation process, the grinding blade 54 can grind the feed material into powder, which is convenient for subsequent detection. Then the third motor 510 can be turned on. The third motor 510 drives the rotating ball 56 to rotate through the rotating shaft 58. During the rotation process, the rotating ball 56 causes the material trough 57 to rotate. When the material trough 57 rotates to the bottom of the discharge pipe 55, the raw material powder in the material trough 57 will fall and fall into the detection box 43 below;

[0053] S3. The raw material powder dropped into the detection box 43 may accumulate. At this time, the micro vibration motor 44 can be turned on to generate vibration. The vibration makes the accumulated raw material powder gradually flattened. The flattened powder can make the excitation light irradiate all parts of the sample more evenly. When the powder accumulates, the excitation light may not be able to fully penetrate into the interior, resulting in insufficient excitation in some areas, affecting the generation of fluorescence and the accuracy of the test results. Then, the electric slide rail 42 is turned on, and the electric slide rail 42 drives the detection box 43 to move, so that the detection box 43 passes through the detection box 45. Then, the feed raw material powder is tested by the fluorescence photometer 46 installed inside the detection box 45, so that the aflatoxin content in the feed raw material can be detected.

[0054] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting aflatoxin in feed raw materials, comprising a mounting frame (1), characterized in that: The top end of the mounting frame (1) is provided with a screening component (2) and a crushing component (5), respectively, and the bottom end of the crushing component (5) is provided with a detection component (4); The screening assembly (2) comprises a screening box (21), wherein a screening frame (216) and an oblique screening plate (214) are respectively arranged inside the screening box (21), and a first rotating rod (28) and a second rotating rod (29) are respectively movably penetrated through the outer wall of the screening box (21), and a first cam (210) and a second cam (211) are respectively fixedly mounted on the output ends of the first rotating rod (28) and the second rotating rod (29), and a driving wheel (25) and a driven wheel (27) are respectively fixedly mounted on one end of the outer wall of the first rotating rod (28) and the second rotating rod (29), and the outer walls of the driving wheel (25) and the driven wheel (27) are sleeved with a belt (26); The detection assembly (4) comprises a detection platform (41) and an electric slide rail (42); The pulverizing assembly (5) comprises a pulverizing cylinder (51) and a discharge pipe (55), and the pulverizing cylinder (51) is fixedly connected to the discharge pipe (55).

2. The device for detecting aflatoxin in feed raw materials according to claim 1, characterized in that: The screening box (21) is fixedly connected to the mounting frame (1); two sliding rods (217) are fixedly installed on both sides of the outer wall of the screening frame (216); one end of the outer wall of the four sliding rods (217) movably penetrates the outer wall of the screening box (21); the outer walls of two of the four sliding rods (217) are sleeved with second springs (218); one end of the outer wall of the two second springs (218) is fixedly connected to the screening frame (216); the other end of the outer wall of the two second springs (218) is fixedly connected to the inner wall of the screening frame (216); and the outer wall of the screening frame (216) is fixedly installed with an extrusion plate (220).

3. The device for detecting aflatoxin in feed raw materials according to claim 1, characterized in that: Two mounting plates (212) are fixedly mounted on the inner wall of the screening box (21), two first springs (213) are fixedly mounted on the top ends of the two mounting plates (212), the top ends of the four first springs (213) are fixedly connected to the oblique screening plate (214), a through slot (219) is penetrated through one side of the outer wall of the screening box (21), a material guide plate (215) is fixedly mounted on one end of the outer wall of the oblique screening plate (214), the material guide plate (215) penetrates through the through slot (219), and the output end of the material guide plate (215) movably penetrates the top end of the crushing cylinder (51).

4. The device for detecting aflatoxin in feed raw materials according to claim 2, characterized in that: The top of the screening box (21) is fixedly connected to a feed port (22), the inner wall of the feed port (22) is fixedly mounted with a diverter plate, the outer wall of the screening box (21) is fixedly mounted with a first L-shaped plate (23), the outer wall of the first L-shaped plate (23) is fixedly mounted with a first motor (24), the output end of the first motor (24) passes through the outer wall of the first L-shaped plate (23) and is fixedly connected to the outer wall of the driving wheel (25), the first cam (210) is arranged on one side of the extrusion plate (220), and the second cam (211) is arranged at the bottom end of the oblique screening plate (214).

5. The device for detecting aflatoxin in feed raw materials according to claim 1, characterized in that: The crushing cylinder (51) is fixedly inserted at the top of the mounting frame (1), a second motor (52) is fixedly mounted at the top of the crushing cylinder (51), an output end of the second motor (52) passes through the top of the crushing cylinder (51) and is fixedly mounted with a third rotating rod (53), and a group of crushing blades (54) are fixedly mounted on the outer wall of the third rotating rod (53).

6. The device for detecting aflatoxin in feed raw materials according to claim 1, characterized in that: The inner wall of the discharge pipe (55) is provided with a rotating ball (56), and the rotating ball (56) matches the discharge pipe (55). The outer wall of the discharge pipe (55) is movably penetrated by a rotating shaft (58), and the rotating shaft (58) is fixedly connected to the rotating ball (56). The outer wall of the rotating ball (56) is provided with three material containing grooves (57).

7. A device for detecting aflatoxin in feed raw materials according to claim 6, characterized in that: A second L-shaped plate (59) is fixedly mounted on the outer wall of the discharge pipe (55), a third motor (510) is fixedly mounted on the outer wall of the second L-shaped plate (59), and an output end of the third motor (510) passes through the outer wall of the second L-shaped plate (59) and is fixedly connected to one end of the outer wall of the rotating shaft (58).

8. The device for detecting aflatoxin in feed raw materials according to claim 1, characterized in that: The electric slide rail (42) is fixedly connected to the detection platform (41); a detection box (43) is provided at the output end of the electric slide rail (42); a micro vibration motor (44) is fixedly mounted on one side of the outer wall of the detection box (43); a detection box (45) is fixedly mounted on the top of the detection platform (41); and a fluorescence photometer (46) is provided at the top of the inner wall of the detection box (45).

9. A method for detecting aflatoxin in feed raw materials according to any one of claims 1 to 8, characterized in that: The specific steps include: S1. Pour the feed raw materials to be tested into the screening box (21), and use the screening component (2) to screen and filter the feed raw materials twice to remove some impurities and debris in the feed raw materials to prevent these impurities and debris from affecting the subsequent test results of the feed raw materials; S2, the feed raw materials after screening enter into the grinding cylinder (51), and then the grinding component (5) grinds the feed raw materials into powder, which is convenient for subsequent testing, and then the ground feed raw materials are discharged through the discharge pipe (55); S3. The feed raw material powder discharged from the discharge pipe (55) will fall onto the detection table (41) below, and then the detection component (4) will detect aflatoxin in the feed raw material powder, thereby completing the detection of aflatoxin in the feed raw material.

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