Equipment for detecting quality and harmful substances of imported grains

Abstract

The invention discloses imported grain quality and harmful substance detection equipment which comprises a screening mechanism and a detection mechanism, the screening mechanism is used for screening and separating grains, and the detection mechanism is used for detecting the screened grains; the screening mechanism comprises a feeding part, a fan and a recycling box, the feeding part comprises a screen body capable of conveying grains in a vibrating mode, the screen body comprises a screening area with screening holes, the fan is arranged below the screen body, a blower nozzle of the fan faces the screening area, and the recycling box is arranged below the screening area. The recycling box is arranged above the screen body and located in an air blowing path of the draught fan, and the recycling box is used for recycling light impurities. According to the imported grain quality and harmful substance detection equipment, the detection efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of grain detection equipment, and in particular to imported grain quality and harmful substance detection equipment. Background Art

[0002] The quality and safety supervision of imported grains is one of the core areas of customs duties. With the vigorous development of global trade, the types and quantities of imported grains continue to rise, making the inspection of the appearance quality of these grains by customs particularly critical.

[0003] In the grain appearance quality inspection stage, the grains need to be screened before inspection. The existing technology generally performs preliminary screening based on particle size, and then performs secondary screening based on the photo information obtained by the camera, and then conducts inspection. However, its inspection efficiency is relatively low. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an imported grain quality and harmful substance detection device, which can improve the detection efficiency.

[0005] The present invention also provides an imported grain quality and harmful substance detection device, comprising a screening mechanism and a detection mechanism, wherein the screening mechanism is used to screen and separate the grains, and the detection mechanism is used to detect the screened grains;

[0006] The screening mechanism includes a feeding part, a fan and a recycling box.

[0007] The feeding member comprises a screen body capable of vibrating and conveying grains, wherein the screen body comprises a screen section having screen holes;

[0008] The fan is arranged below the screen body, the air outlet of the fan faces the screening area, the recovery box is arranged above the screen body and in the air blowing path of the fan, and the recovery box is used to recover light debris.

[0009] The imported grain quality and pest detection equipment according to the embodiment of the present invention has at least the following beneficial effects: the fan is arranged below the sieve body, and the air blast port of the fan faces the screening area. The airflow flows out from the air blast port and blows away the light debris such as small-sized seeds in the grain through the sieve holes in the screening area. The recovery box is arranged above the sieve body and in the air blast path of the fan. The airflow carrying the light debris passes through the recovery box, so that the light debris is recovered, so that the small-grain grass seeds can be sorted out from the grain to facilitate the detection, avoiding the need to manually separate the small-grain grass seeds in the subsequent detection process, and improving the detection efficiency.

[0010] According to some embodiments of the present invention, the recovery box includes an air inlet, a recovery chamber and an air outlet, the air inlet and the air outlet are both connected to the recovery chamber, the air outlet is provided with a filter, and the area of ​​the air outlet is larger than the area of ​​the air inlet.

[0011] According to some embodiments of the present invention, the recycling box includes a top plate, a bottom plate, and a side plate disposed between the top plate and the bottom plate;

[0012] The air outlet is arranged on the top plate, and the air inlet is located between the top plate and the bottom plate on a side close to the fan. The bottom plate includes an opening area close to the air inlet and a storage area away from the air inlet. Along the conveying direction, the opening area gradually approaches the top plate, and the storage area gradually moves away from the top plate.

[0013] According to some embodiments of the present invention, the screening zone includes a first zone and a second zone sequentially distributed along the conveying direction, and the tuyere is aligned with the first zone;

[0014] The imported grain quality and pest detection equipment also includes an imperfect grain bin, which is arranged below the second partition.

[0015] According to some embodiments of the present invention, the sieve body further comprises a material receiving area, a material distribution area and an arrangement area sequentially distributed along the conveying direction, and the screening area is located between the material distribution area and the arrangement area; the material receiving area is used to receive grains, the material distribution area is used to disperse the grains, and the arrangement area has a plurality of flow channels arranged in parallel, and the grains are arranged in the flow channels;

[0016] The detection mechanism includes a first camera, which is arranged above the flow channel to obtain appearance information of the arranged grains.

[0017] According to some embodiments of the present invention, the imported grain quality and pest detection equipment further includes an imperfect grain bin;

[0018] The screening mechanism comprises an air blowing valve, which is located at the outlet of the flow channel and is used for indirect air blowing to blow imperfect grains into the imperfect grain bin.

[0019] According to some embodiments of the present invention, the imported grain quality and pest detection device includes a perfecting grain bin, the perfecting grain bin being used to receive the perfected grains flowing out of the outlet of the flow channel;

[0020] Among them, the perfect grain bin and the imperfect grain bin both include a recovery hopper and a recovery bin, the recovery hopper and the recovery bin are separately arranged, and the detection mechanism includes a weighing device, and the weighing device is used to weigh the recovery bin.

[0021] According to some embodiments of the present invention, the detection mechanism includes a second camera, which is disposed in the recycling box and is used to obtain information on small-sized invasive grass seeds in the lightweight debris.

[0022] According to some embodiments of the present invention, the detection mechanism includes a third camera, which is disposed in the imperfect grain bin and is used to obtain information on invasive grass seeds with large particle sizes.

[0023] According to some embodiments of the present invention, the imported grain quality and pest detection equipment includes a frame and a fixed plate arranged on the frame, the feeding part includes a straight vibrator arranged on the fixed plate, the screen body is connected to the straight vibrator, and the fan is arranged on the fixed plate.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a schematic diagram of the structure of an imported grain quality and pest detection device according to an embodiment of the present invention;

[0027] Figure 2 It is a front view of an imported grain quality and pest detection device according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the sieve body of the imported grain quality and harmful substance detection equipment according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a recycling box for imported grain quality and pest detection equipment according to an embodiment of the present invention.

[0030] Reference numerals:

[0031] 1. Frame; 2. Fixed plate; 3. Straight vibrator; 4. Screen body; 404. Screening area; 404a. First area; 404b. Second area; 402. Material receiving area; 403. Material dividing area; 405. Arrangement area; 5. Feed hopper; 6. Recovery box; 601. Air inlet; 602. Air outlet; 603. Top plate; 604. Opening area; 605. Storage area; 7. First camera; 8. Blowing valve; 9. Recovery hopper; 10. Recovery bin; 11. Incomplete grain bin; 12. Complete grain bin; 13. Fan; 14. Weighing device. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] Customs inspection of the appearance quality of imported grain is an important part of maintaining domestic food safety and ensuring agricultural production safety. It is also a key factor in improving customs clearance efficiency and promoting the development of international trade. According to the "Regulations on Supervision and Administration of Inspection and Quarantine of Inbound and Outbound Grains", the customs implements a series of strict on-site inspection and quarantine procedures for inbound grains, including but not limited to cargo and document verification, on-site inspection, sample collection, and laboratory analysis and identification, etc., to ensure that imported grains meet my country's food safety and quality standards.

[0038] In the appearance quality inspection link, the customs pays special attention to whether the grain has excessive moisture, mildew, corruption and other problems, and also checks whether there are pests such as insects and weed seeds mixed in, as well as other prohibited substances such as foreign grains, plant disease remains, soil, fumigant residues, seed dressing pollution, animal carcasses, animal excrement, etc. These detailed inspection items are not only related to the appearance quality of grain, but also the key measures for customs to prevent the invasion of foreign pests and protect the safety of domestic agricultural production.

[0039] In the prior art, during the screening and detection of grains, a preliminary screening is generally performed based on the particle size, and then a secondary screening is performed based on the photo information obtained by the camera, and then the detection is performed. However, since it is impossible to separate lightweight impurities such as lightweight and small-particle grass seeds, the small-particle grass seeds and large-particle grass seeds are mixed, which affects the detection efficiency.

[0040] For this, please refer to Figure 1-Figure 4 The embodiment of the present application provides an imported grain quality and pest detection device, including a screening mechanism and a detection mechanism, the screening mechanism is used to screen and separate the grains, and the detection mechanism is used to detect the screened grains.

[0041] Please refer to Figure 1-Figure 3 The screening mechanism includes a feeding member, a fan 13 and a recovery box 6. The feeding member includes a screen body 4 capable of vibrating and conveying grains, the screen body 4 is arranged horizontally or slightly inclined, and the screen body 4 includes a screening section 404 with screen holes. The feeding member includes a screen body 4 capable of vibrating and conveying grains, and the screen body 4 includes a screening section 404 with screen holes. The grains move on the vibrating screen body 4 and pass through the screening section 404.

[0042] The fan 13 is arranged below the sieve body 4, and the air blast port of the fan 13 faces the screening area 404. The airflow flows out from the air blast port and blows away light debris such as small-sized seeds in the grains through the sieve holes of the screening area 404. The recovery box 6 is arranged above the sieve body 4 and in the air blast path of the fan 13. The airflow carrying light debris passes through the recovery box 6, so that the light debris is recovered, so that small-grained grass seeds can be sorted out from the grains for easy detection, avoiding the need to manually separate small-grained grass seeds in the subsequent detection process, and improving the detection efficiency.

[0043] For some examples, please refer to Figure 2 and Figure 4The recovery box 6 includes an air inlet 601, a recovery chamber and an air outlet 602, and the air inlet 601 and the air outlet 602 are both connected to the recovery chamber. The air flow flows into the recovery chamber from the air inlet 601 and flows out of the recovery chamber through the air outlet 602. Among them, the air inlet 601 faces the blast port of the fan 13 to facilitate the air flow carrying light debris to enter the recovery chamber. The air outlet 602 is provided with a filter net, and the filter net is used to filter the light debris. The filter net can be provided with multiple layers.

[0044] The area of ​​the air outlet 602 is larger than the area of ​​the air inlet 601 , thereby reducing the wind pressure at the air outlet 602 and facilitating the separation of lightweight debris.

[0045] It is understandable that the specific structure of the recovery box 6 is not limited. In some embodiments, the recovery box 6 includes a top plate 603, a bottom plate, and a side plate disposed between the top plate 603 and the bottom plate. The top plate 603 is located on the side of the bottom plate away from the sieve body 4.

[0046] The air outlet 602 is disposed on the top plate 603 , and the top plate 603 may be a filter mesh structure, so that the area of ​​the air outlet 602 is relatively large.

[0047] The air inlet 601 is located between the top plate 603 and the bottom plate on the side close to the fan 13. Specifically, the air inlet 601 can be provided on the side plate of the recovery box 6 close to the fan 13, or the side of the recovery box 6 close to the fan 13 can be formed without a side plate.

[0048] The bottom plate includes an opening area 604 close to the air inlet 601, and a storage area 605 away from the air inlet 601. Along the conveying direction, the opening area 604 gradually approaches the top plate 603, so that the air inlet 601 gradually shrinks along the airflow direction to form a bell-mouth structure to facilitate the storage of lightweight debris. The storage area 605 gradually moves away from the top plate 603, thereby forming a recovery cavity structure with a gradually increasing cross-section along the airflow direction to accommodate the above-mentioned lightweight debris. In addition, the airflow flows along the opening area 604, and a convex structure is formed between the opening area 604 and the storage area 605. The convex structure can largely prevent the above-mentioned lightweight debris from being blown out by the airflow.

[0049] For some examples, please refer to Figure 2 and Figure 3 The screening zone 404 includes a first zone 404a and a second zone 404b which are sequentially distributed along the conveying direction. That is, the first zone 404a is located relatively upstream, and the second zone 404b is located relatively downstream. The blast port is aimed at the first zone 404a to separate the light impurities of the grains in the first zone 404a.

[0050] The imported grain quality and pest detection equipment also includes an imperfect grain bin 11, which is arranged below the second partition 404b. Some particles with smaller particle sizes, such as broken grains and some debris, can fall into the imperfect grain bin 11 from the sieve holes to achieve separation.

[0051] In order to prevent particles with smaller particle sizes, such as broken particles and some debris, from flowing out of the sieve holes of the first partition 404a, the sieve hole diameter of the first partition 404a can be made smaller than the sieve hole diameter of the second partition 404b. Alternatively, this can be achieved by controlling the air outlet speed.

[0052] In some specific embodiments, the sieve holes of the screening zone 404 gradually increase in diameter along the conveying direction. Thus, when the grains flow through the screening zone, the sieve holes of the first zone 404a are relatively smaller in size and have sufficient airflow below, thereby preventing particles with smaller particle sizes from flowing out of the sieve holes.

[0053] The blower port of the fan 13 is tilted and tilted along the conveying direction. In this way, when part of the grain is blown up, the airflow is relatively weakened due to the distance from the blower port, and the blown up part of the grain can fall back to the screen body 4, and the falling position is located downstream of the blowing position, so that while the light debris is blown into the recovery box 6, the remaining grain that can be blown up can continue to be conveyed along the conveying direction.

[0054] It can be understood that the structure of the screen body 4 is not limited. In some embodiments, the screen body 4 also includes a material receiving area 402, a material dividing area 403 and an arrangement area 405 distributed in sequence along the conveying direction, wherein the screening area 404 is located between the material dividing area 403 and the arrangement area 405, and the grains pass through the material receiving area 402, the material dividing area 403, the screening area 404 and the arrangement area 405 in sequence.

[0055] The receiving area 402 is used to receive grains. Specifically, the feeding hopper 5 is arranged above the receiving area 402. The grains enter the equipment from the feeding hopper 5, and the receiving area 402 is located below the feeding hopper 5.

[0056] The material distribution area 403 is used to disperse the grains. In the width direction, the width of the material distribution area 403 is greater than the width of the material receiving area 402, so that when the grains are vibrated and moved to the material distribution area 403, they can be fully dispersed, which greatly reduces the possibility of grain stacking, thereby reducing the difficulty of subsequent screening in the screening area 404 and improving the accuracy of subsequent detection.

[0057] The grains passing through the screening area 404 enter the arrangement area 405. The arrangement area 405 has a plurality of flow channels arranged in parallel. The flow channels extend along the flow direction of the grains. The grains enter the flow channels and are arranged in the flow channels, thereby further reducing the possibility of grain stacking.

[0058] It can be understood that the screen body 4 includes a bottom wall and side walls. The side walls are arranged around the periphery of the bottom wall, wherein the side of the arrangement area 405 away from the screening area 404 is not provided with a side wall.

[0059] The detection mechanism includes a first camera 7, which is arranged above the flow channel to obtain appearance information of the arranged grains. It can be understood that the grains arranged in the flow channel are separated by adjacent flow channels, so that the first camera 7 can obtain a relatively complete appearance structure, thereby improving the success rate of recognition.

[0060] In order to further separate the grains passing through the sieve body 4, in some embodiments, the screening mechanism includes an air blowing valve 8, which is located at the outlet of the flow channel and is used to indirectly blow air to blow the imperfect grains into the imperfect grain bin 11. The determination of the imperfect grains is determined based on the analysis of the shooting results of the first camera 7. The above determination process is disclosed in the prior art and will not be repeated here. The air blowing valve 8 is selectively opened or closed according to the results of the above determination process. In the open state, the imperfect grains can be blown into the imperfect grain bin 11.

[0061] There may be multiple air blowing valves 8 arranged in a row, and each air blowing valve 8 may correspond to a flow channel. In addition, the air blowing valve 8 may be arranged to be rotatable to face multiple flow channels.

[0062] In some embodiments, the imported grain quality and pest detection device includes a perfect grain bin 12, and the perfect grain bin 12 is used to receive the perfect grains flowing out of the outlet of the flow channel. It can be understood that the perfect grains are grain particles after screening.

[0063] Among them, the perfect grain bin 12 and the imperfect grain bin 11 both include a recovery hopper 9 and a recovery bin 10. The recovery hopper 9 is a funnel structure that is larger at the top and smaller at the bottom. The recovery bin 10 is a box-shaped structure with an open top, and the opening at the top is opposite to the funnel.

[0064] The recovery hopper 9 and the recovery bin 10 are separately arranged, and the detection mechanism includes a weighing device 14, which is used to weigh the recovery bin 10. It can be understood that by separating the recovery hopper 9 and the recovery bin 10, the weight supported by the weighing device 14 is greatly reduced, so that the weighing device 14 can obtain more accurate measurements, while increasing the service life of the weighing device 14.

[0065] In some embodiments, the detection mechanism includes a second camera, which is disposed in the recovery box 6 and is used to obtain information on small-particle invasive grass species in lightweight debris, thereby directly obtaining detection results of small-particle invasive grass species and improving detection efficiency.

[0066] In some embodiments, the detection mechanism includes a third camera, which is disposed in the imperfect grain bin 11 and is used to obtain information on large-particle invasive grass species, thereby directly obtaining detection results of large-particle invasive grass species and improving detection efficiency.

[0067] In some embodiments, the imported grain quality and pest detection equipment includes a frame 1 and a fixed plate 2 arranged on the frame 1, the feeding part includes a straight vibrator 3, the screen body 4 is connected to the straight vibrator 3, and the straight vibrator 3 and the fan 13 are arranged on the fixed plate 2.

[0068] The vibration of the straight vibrator 3 drives the screen body 4 to vibrate, thereby realizing the vibration transportation and screening of the grains.

[0069] The fixing plate 2 can be fixed to the frame 1 by tightening, and the position or height can be adjusted when necessary.

[0070] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. An imported grain quality and pest detection device, characterized in that: It comprises a screening mechanism and a detection mechanism, wherein the screening mechanism is used to screen and separate grains, and the detection mechanism is used to detect the screened grains; The screening mechanism includes a feeding piece, a fan and a recovery box. The feeding piece includes a screen body capable of vibrating and conveying grains. The screen body includes a screening section with screen holes. The fan is arranged below the screen body. The air outlet of the fan faces the screening section. The recovery box is arranged above the screen body and in the air blowing path of the fan. The recovery box is used to recover light debris.

2. The imported grain quality and pest detection equipment according to claim 1 is characterized in that: The recovery box comprises an air inlet, a recovery chamber and an air outlet. The air inlet and the air outlet are both connected to the recovery chamber. The air outlet is provided with a filter. The area of ​​the air outlet is larger than the area of ​​the air inlet.

3. The imported grain quality and pest detection equipment according to claim 2 is characterized in that: The recycling box includes a top plate, a bottom plate, and a side plate arranged between the top plate and the bottom plate; The air outlet is arranged on the top plate, and the air inlet is located between the top plate and the bottom plate on a side close to the fan. The bottom plate includes an opening area close to the air inlet and a storage area away from the air inlet. Along the conveying direction, the opening area gradually approaches the top plate, and the storage area gradually moves away from the top plate.

4. The imported grain quality and pest detection equipment according to claim 1, characterized in that: The screening area includes a first area and a second area sequentially distributed along the conveying direction, and the tuyere is aligned with the first area; The imported grain quality and pest detection equipment also includes an imperfect grain bin, which is arranged below the second partition.

5. The imported grain quality and pest detection equipment according to claim 1 is characterized in that: The sieve body further comprises a material receiving area, a material distribution area and an arrangement area which are sequentially distributed along the conveying direction, and the screening area is located between the material distribution area and the arrangement area; the material receiving area is used to receive grains, the material distribution area is used to disperse the grains, and the arrangement area has a plurality of flow channels arranged in parallel, and the grains are arranged in the flow channels; The detection mechanism includes a first camera, which is arranged above the flow channel to obtain appearance information of the arranged grains.

6. The imported grain quality and pest detection equipment according to claim 5 is characterized in that: The imported grain quality and pest detection equipment also includes imperfect grain bins; The screening mechanism comprises an air blowing valve, which is located at the outlet of the flow channel and is used for indirect air blowing to blow imperfect grains into the imperfect grain bin.

7. The imported grain quality and pest detection equipment according to claim 6 is characterized in that: The imported grain quality and pest detection equipment comprises a perfect grain bin, and the perfect grain bin is used to receive the perfect grains flowing out of the outlet of the flow channel; Among them, the perfect grain bin and the imperfect grain bin both include a recovery hopper and a recovery bin, the recovery hopper and the recovery bin are separately arranged, and the detection mechanism includes a weighing device, and the weighing device is used to weigh the recovery bin.

8. The imported grain quality and pest detection equipment according to claim 1, characterized in that: The detection mechanism includes a second camera, which is arranged in the recovery box and is used to obtain information on small-sized invasive grass seeds in lightweight debris.

9. The imported grain quality and pest detection device according to any one of claims 6 and 7, characterized in that: The detection mechanism includes a third camera, which is arranged in the imperfect grain bin and is used to obtain information on invasive grass seeds with large particle sizes.

10. The imported grain quality and pest detection equipment according to claim 1, characterized in that: The imported grain quality and pest detection equipment includes a frame and a fixed plate arranged on the frame, the feeding part includes a straight vibrator arranged on the fixed plate, the screen body is connected to the straight vibrator, and the fan is arranged on the fixed plate.

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