A resource sharing grain inspection platform process

Abstract

The present application relates to the technical field of grain inspection and quarantine, and discloses a resource sharing grain inspection platform process, which comprises a quarantine channel, an inspection channel, a public channel and a central control system, and has the following working steps: S1, sampling multiple berths in the public channel; S2, screening and color selecting the samples in the quarantine channel; and S3, detecting the moisture, bulk density and temperature of the samples in the inspection channel. The present application can simultaneously sample, separate, prepare, measure and detect the quality of imported grains in multiple berths, and can also synchronously detect the moisture, temperature and bulk density of the grains, intelligently analyze the detection data, track and detect the state of the grains during operation, separate the target samples from the quarantine samples through screening, winnowing and color selecting, intercept and monitor various quarantine foreign organisms and plants in the imported grains, and realize resource sharing of the inspection systems of multiple berths in the port.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain inspection and quarantine, and particularly relates to a resource-sharing grain inspection platform process. BACKGROUND

[0002] Grain is a major imported agricultural product in China, and the safety of imported grain is of great significance to the national economy and people's livelihood. The annual import volume is increasing, and by 2022, the annual import volume has broken through 4 million tons. In the face of the increasing trend of grain imports, China's grain inspection technology is far behind the development of the times. Some grain import enterprises or ports still use manual sampling and grain analysis and detection methods for quality detection.

[0003] In recent years, some ports have imported some process equipment for grain inspection, but they cannot simultaneously cope with multiple ship imports or multiple batches of grain sampling for synchronous inspection, and they cannot complete online synchronous inspection, quarantine and other inspection work during unloading. In recent years, the continuous occurrence of food safety incidents in China has put forward higher requirements for imported grain supervision. However, there is currently no process equipment that meets the above-mentioned online grain inspection function, and the application of this technology is currently in a vacuum zone. SUMMARY

[0004] The purpose of the present application is to provide a resource-sharing grain inspection platform process to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A resource-sharing grain inspection platform process includes quarantine channels, inspection channels, public channels, and a central control system, and the working steps are as follows:

[0007] S1, in the public channel, a belt-type sampler is used to take a sample from each batch of grain from each berth, and the sample after initial screening is stored in a respective sample buffer machine. When the number of samples reaches the specified number, a sub-sample is formed. The central control system controls the sub-sample buffer machine to open the four-way switcher in turn according to the order, and the inspection sub-sample and the quarantine sub-sample are sent into the inspection channel and the quarantine channel through the inspection and quarantine sample distributor, and the remaining material is sent into the discard channel as discard.

[0008] S2, in the quarantine channel, the quarantine sub-sample first passes through the quarantine emergency three-way into the general weighing hopper, after weighing, is sent into the double-layer screening machine to screen out big sundries, the screened quarantine sub-sample is sent into the quarantine sample feeder to the quarantine sample secondary classifier, part of the quarantine sub-sample is classified according to the specified proportion, then is sent into the air separation sample weighing hopper, when the weight reaches the specified weight, the quarantine sample is sent into the screening and screening machine through the quarantine sample three-way, and the screened quarantine sample is sent into the corresponding sample collector;

[0009] Another part of the quarantine sub-sample is classified according to the specified proportion, then is sent into the intelligent color particle sorter to select color, and the color selected quarantine sample is sent into the corresponding color particle collector;

[0010] S3, in the inspection channel, the inspection sub-sample first passes through the inspection emergency three-way into the inspection sample feeder, and is sequentially classified into the specified weight of the inspection sample through the inspection sample secondary classifier and the inspection sample tertiary classifier, then the inspection sample is sent into the sample weighing hopper, when the weight reaches the specified weight, the sample weighing three-way is moved to the screening position, the weight qualified inspection sample is sent into the bulk density tester to measure the moisture, bulk density and temperature of the sample, and the bulk density measured inspection sample is sent into the protein tester to measure the moisture, temperature, ash content, gluten, protein, fat, sedimentation value, fiber, starch, acid value and water absorption of the granular grain sample, and the remaining sample after detection is sent into the waste channel as waste.

[0011] As a further scheme of the present application, in the S1 step, the belt sampler simultaneously has the functions of grain sampling and initial sundry screening of large particle stones, soil blocks, quarantine foreign organisms and plants, the sampling mode of the belt sampler is divided into belt head sampling and belt middle sampling.

[0012] In the belt head sampling mode, the initial sundry screening is integrated with the belt sampler to complete the initial sundry screening and sampling simultaneously, in the belt middle sampling mode, the initial sundry screening is arranged on the sample chute at the rear end of the belt sampler, the initial sundry sample separated by the belt sampler is collected by the initial sundry sample collector, and the chute is in sealed connection with the initial sundry sample collector.

[0013] As a further scheme of the present application, in the S1, S2 and S3 steps, all the waste in the waste channel is first sent into the corresponding buffer bin through the waste collection belt machine, then the central control system controls the four-way switcher to switch to the corresponding buffer bin according to the waste condition, and the waste is sent back to the respective port main belt machine through the waste elevator.

[0014] As a further scheme of the present application: in the S2 step, a small amount of grain is separated from the large impurities by twice screening of the oversize in the double-layer screening machine, and the screened small amount of grain is sent into the quarantine sample secondary divider again; the oversize outlet in the double-layer screening machine is connected with the oversize weighing hopper, and after the large impurities in the oversize weighing hopper are weighed, the impurity content in the whole batch of grain is calculated by comparing the weight with the weight of the quarantine sample when the total weighing hopper is weighed.

[0015] As a further scheme of the present application: in the S2 step, when the weight of the quarantine sample after being weighed by the air separation sample weighing hopper is lower than the specified weight and does not meet the air separation condition, the quarantine sample three-way switch moves to the discard position, and the quarantine sample is sent into the discard channel as discard.

[0016] As a further scheme of the present application: in the S3 step, the test sample after being divided by the test sample secondary divider is sent into the test sample tertiary divider, and the discard is sent into the discard channel; the test sample tertiary divider is provided with two outlets, one of which is to send the divided test sample into the laboratory sample weighing hopper for weighing, and when the weight of the test sample is lower than the specified weight and does not meet the bulk density measurement condition, the sample weighing three-way switch moves to the discard position, and the test sample is sent into the discard channel as discard;

[0017] The other outlet is to send the divided test sample into the test sample quaternary divider, divide the laboratory analysis sample by the test sample quaternary divider, and weigh it; when the weight of the laboratory analysis sample is lower than the specified weight and cannot meet the laboratory weight of one test sample, the test sample three-way switch moves to the discard position, and the laboratory analysis sample is sent into the discard collection belt as discard; when the laboratory analysis weight is qualified, the test sample three-way switch moves to the four-channel switch, and the laboratory analysis sample is sent into the corresponding test sample collector by controlling the four-channel switch by the central control system.

[0018] As a further scheme of the present application: in the S3 step, the grain abnormality alarm device and the equipment abnormality alarm device are arranged in the test channel; the grain abnormality alarm device is used to track and detect the state of the grain, and once the temperature and moisture of the grain exceed the set alarm value, an alarm is given immediately, the operation of the grain conveying equipment in the port is stopped quickly, and the customs personnel are notified to implement on-site inspection; the equipment abnormality alarm device is used to track and detect the operation state of the equipment, and once a fault occurs in the equipment, an alarm is given immediately to notify the operator in the central control room, and the operation is continued by switching to the emergency operation process.

[0019] As a further scheme of the present application: in the S2 step, the sample collector is composed of a small impurity collector, a medium impurity collector, a damaged kernel collector (which simultaneously weighs the damaged kernels), and a complete kernel collector.

[0020] The lower part of the screening winnower is provided with four discharge outlets, i.e., a small impurity discharge outlet, a medium impurity discharge outlet, a damaged particle discharge outlet and a complete particle discharge outlet; two different aperture roller screen meshes are arranged in the inside, and a weighing system, an air supply system and control software are arranged in the inside, so that automatic impurity removal, particle grading, weighing, determination of the proportion among impurities, damaged particles and complete particles in the sample are realized;

[0021] The undersides of the small impurity discharge outlet and the medium impurity discharge outlet are provided with an inspection detection platform, and a video monitoring system is arranged above the detection platform, so as to monitor quarantine foreign organisms and plants through the video monitoring system; the discharge outlets of the detection platform are connected with the inlet of a small impurity weighing hopper and the inlet of a medium impurity weighing hopper respectively; the discharge outlet of the small impurity weighing hopper is connected with a small impurity sample collector, and the discharge outlet of the medium impurity weighing hopper is connected with a medium impurity sample collector; the undersides of the damaged particle discharge outlet and the complete particle discharge outlet are respectively connected with damaged particle collectors and complete particle collectors;

[0022] The quality of the quarantine sample is monitored through the video monitoring system, when the online detection of the video monitoring system finds that the quality of grain is unqualified, the central control system moves the discharge outlet of the quarantine sample three-way to the unqualified sample collector, and stores the sample in the standby inspection; when the online detection is qualified, the quarantine sample three-way is in the normal position of the discharge, and the discharge is sent into the discharge channel.

[0023] As a further scheme of the application, in the S2 step, the foreign color particle collectors are composed of a red foreign color particle collector, a green foreign color particle collector, a black foreign color particle collector, a weed particle collector, a coarse grain and bean collector and a seed coating agent collector; the red foreign color particles, the green foreign color particles, the black foreign color particles, the weed particles, the coarse grain and beans and the seed coating agents selected by the intelligent foreign color particle sorting instrument are respectively sent into the red foreign color particle collector, the green foreign color particle collector, the black foreign color particle collector, the weed particle collector, the coarse grain and bean collector and the seed coating agent collector.

[0024] Compared with the prior art, the application has the following beneficial effects:

[0025] This invention enables simultaneous sampling, separation, sample preparation, measurement, and quality testing of imported grains at multiple berths via public channels, quarantine channels, and inspection channels. It also allows for simultaneous monitoring of grain moisture, temperature, and bulk density, intelligent statistical analysis of the test data, and tracking of grain condition during operation. This facilitates online monitoring of various impurities and adulteration in imported grains. By using screening, air separation, and color sorting to separate target quarantine samples, it achieves the interception and monitoring of various quarantine-related alien organisms and plants in imported grains, thereby maximizing the restoration of the original characteristics of imported grains. Furthermore, it reduces redundant configuration of inspection systems, enabling resource sharing among inspection systems at multiple berths in the port. It can also flexibly connect to sampling devices at other berths and other laboratories, providing samples for testing in laboratories, warehouses, and wharves. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the workflow of a public channel in a resource-sharing grain inspection platform process.

[0027] Figure 2 This is a schematic diagram of the workflow of the quarantine channel in a resource-sharing grain inspection platform.

[0028] Figure 3 This is a schematic diagram of the workflow of an intelligent heterogeneous grain sorter in a resource-sharing grain inspection platform process.

[0029] Figure 4 A schematic diagram of the working structure of a screening and air separation machine in a resource-sharing grain inspection platform process;

[0030] Figure 5 This is a schematic diagram of the inspection channel in a resource-sharing grain inspection platform process. Detailed Implementation

[0031] Please see Figures 1 to 5 In this embodiment of the invention, a resource-sharing grain inspection platform process includes a quarantine channel, an inspection channel, a public channel, and a central control system. Its working steps are as follows:

[0032] S1, in the public channel, by the belt sampler in each batch of grain from each berth (such as 1# system, 2# system... N# system berth) is intercepted once respectively, and the sample after the initial impurity screening is stored in the corresponding sub-sample buffer machine (such as 1#, 2#... N# sub-sample buffer machine), when the intercepted sample reaches the specified number (such as 5 times), the sub-sample is formed, the central control system controls the sub-sample buffer machine to open the four-way switcher in turn according to the order, and the inspection sub-sample and the quarantine sub-sample are sent into the inspection channel and the quarantine channel respectively through the inspection and quarantine sample distributor, and the remaining material is sent into the waste channel as waste, so that the sample can be sent to the public channel without cross contamination and mutual interference of the operation process, and then separated into the quarantine channel and the inspection channel; According to the requirement of ISO 24333 standard "1500 tons for one sampling batch, 25 samples for each batch", taking two kinds of belt machines with maximum flow of 500 tons and 1000 tons as an example, and calculating the minimum sampling period.

[0033] 500 tons of belt machine: weight per minute: 500÷60=8.3t / min; each batch needs time: 1500÷8.3=180min; each sample interval time: 180÷25=7.2min; each sampling interval weight: 8.3×7.2=60t; Form a sub-sample time: 7.2×5=36min;

[0034] 1000 tons of belt machine: weight per minute: 1000÷60=16.7 t / min; each batch needs time: 1500÷16.7=90 min; each sample interval time: 90÷25=3.6 min; each sampling interval weight: 16.7×3.6=60t; Form a sub-sample time: 3.6×5=18 min;

[0035] If the belt sampler is intercepted every 60t, the weight of the sample intercepted each time is 16.5kg, according to the requirement of forming a sub-sample every 5 samples, a sub-sample is formed every 300 tons, and the mass of each sub-sample is 16.5×5=82.5 kg; After 5 sub-samples are taken by the belt sampler to form a batch in the sub-sample buffer machine (300×5=1500 tons), it is transported to the corresponding port main belt machine, which solves the problem of contradiction between sampling time and sampling time after multiple samples enter the inspection platform;

[0036] S2, in the quarantine channel, the quarantine sub-sample first passes through the quarantine emergency three-way into the general weighing hopper, after weighing, it is sent into the double-layer screening machine to screen out large impurities; the screened quarantine sub-sample is sent into the quarantine sample feeder to the quarantine sample secondary classifier, part of the quarantine sub-sample is divided according to the specified proportion (such as 1:8 ratio, 5 kg of quarantine sample is obtained by dividing 41 kg of quarantine sub-sample), then it is sent into the air separation sample weighing hopper for air separation and weighing, when the weight reaches the specified weight (such as 5 kg), the quarantine sample is sent into the screening air separator through the quarantine sample three-way, and the screened quarantine sample is sent into the corresponding sample collector;

[0037] Another part of the quarantine sub-sample is divided according to the specified proportion (such as 1:8 ratio, 3 kg of quarantine sample is obtained by dividing 24 kg of quarantine sub-sample), then it is sent into the intelligent color sorter for color selection, and the color-selected quarantine sample is sent into the corresponding color sorter collector; the separated qualitative target sample mainly includes the following types: one is the existing weed seeds, insects, snails and other harmful organisms; two is the soil, diseased grains, plant disease residues, pathogenic fungus gall and other harmful biological carriers that may carry harmful organisms; three is specific grains or grain particles that may carry toxic and harmful substances;

[0038] S3, in the inspection channel, the inspection sub-sample first passes through the inspection emergency three-way into the inspection sample feeder, and is sequentially divided into a specified weight of inspection sample (such as 1 kg sample is obtained by dividing 5 kg of grain according to the ratio of 1:4) through the inspection sample secondary classifier and the inspection sample tertiary classifier, and then the inspection sample is sent into the sample weighing hopper for weighing, when the weight reaches the specified weight (such as 1 kg), the sample weighing three-way moves to the flow screen position, and the weight qualified inspection sample is sent into the bulk density tester to measure the moisture, bulk density and temperature of the sample; the bulk density measured inspection sample is sent into the protein tester to measure the moisture, temperature, ash content, gluten, protein, fat, sedimentation value, fiber, starch, acid value and water absorption of the granular grain sample (such as corn, soybean and wheat); the remaining sample after detection is sent into the waste channel as waste.

[0039] In Figure 1 , in the S1 step, the belt sampler simultaneously has the functions of grain sampling, and initial impurity screening of large particle stones, soil blocks, quarantine foreign organisms and plants; the sampling mode of the belt sampler is divided into belt head sampling and belt middle sampling;

[0040] In the belt head sampling mode, the initial impurity screening is integrated with the belt sampler to complete the screening and sampling of the initial impurities; in the middle of the belt sampling mode, the initial impurity screening is arranged on the sample chute pipe at the rear end of the belt sampler; thereby effectively preventing the initial impurities (i.e. special substances above 20 mm) in the intercepted sample, and preventing impurities from entering the public channel, causing the public channel to be blocked; the initial impurity sample separated by the belt sampler is collected by the initial impurity sample collector, and the chute pipe is in sealed connection with the initial impurity sample collector to prevent dust pollution.

[0041] In Figure 1 , Figure 2 and Figure 5 , in the S1, S2, S3 steps, all the rejected materials in the rejected material channel are first sent into the corresponding buffer bin (such as 1# system, 2# system... N# system buffer bin) by the rejected material collection belt, and then the central control system controls the four-channel switcher to switch to the corresponding buffer bin according to the rejected material condition, and the rejected material is sent back to the respective port main belt (such as 1# system, 2# system... N# system port main belt) by the rejected material elevator; all single machine equipment start-stop working states are controlled by the central control system, and the running state of each single machine equipment is controlled by the grain flow position. When the grain flow arrives, the single machine runs and stops automatically after the grain flow ends. This running mode reduces the equipment running time, reduces the equipment wear and tear, reduces the equipment noise and dust, and realizes energy-saving and environmentally-friendly operation.

[0042] In Figure 2 , in the S2 step, a small amount of grain is separated from the large impurities by twice screening of the sieve above the double-layer screening machine, and the small amount of grain screened is sent into the quarantine sample secondary divider again, so as to filter out a small amount of complete grain particles existing in the large impurities; the sieve above the double-layer screening machine is connected with the sieve above the weighing hopper, and after the large impurities in the sieve above are weighed, compared with the weight of the quarantine sample in the total weighing hopper when the material is fed, the impurity content in the whole batch of grain is calculated.

[0043] In Figure 2 , in the S2 step, when the weight of the quarantine sample after being weighed by the air separation sample weighing hopper is lower than the specified weight (such as less than 5 kg), the air separation condition is not met, and the quarantine sample three-way moves to the rejected material position, and the quarantine sample is sent into the rejected material channel as rejected material.

[0044] In Figure 5In the S3 step, the test sample after the secondary sample divider is sent into the test sample tertiary sample divider, and the discard sample is sent into the discard channel; the test sample tertiary sample divider is provided with two outlets, one of which is to send the test sample after the division into the laboratory sample weighing hopper for weighing, and when the weight of the test sample is lower than the specified weight (e.g., less than 1 kg), the sample weighing three-way valve is moved to the discard position, and the test sample is sent into the discard channel as discard sample;

[0045] The other outlet is to send the test sample after the division into the test sample quaternary sample divider, and the laboratory analysis sample is divided by the test sample quaternary sample divider, and is weighed, and when the weight of the laboratory analysis sample is lower than the specified weight (e.g., less than 1 kg), the laboratory weight of one test subsample cannot be met, the test sample three-way valve is moved to the discard position, and the laboratory analysis sample is sent into the discard collection belt conveyor as discard sample; when the laboratory analysis weight is qualified, the test sample three-way valve is moved to the four-channel switch, and the laboratory analysis sample is sent into the corresponding test sample collector by the control of the central control system.

[0046] Preferably, in the S3 step, the test channel is provided with a grain abnormality alarm device and an equipment abnormality alarm device, the grain state is tracked and detected by the grain abnormality alarm device, and once the temperature and moisture of the grain exceed the set warning value, an alarm is given immediately, the operation of the grain conveying equipment of the port is stopped quickly, and the customs personnel are notified to implement on-site inspection; the equipment operation state is tracked and detected by the equipment abnormality alarm device, and once a fault occurs in a certain equipment, an alarm is given to notify the operator in the central control room, and the emergency operation process is switched to continue operation, so that the whole system does not stop running due to the fault of a single equipment.

[0047] In the S2 step, Figure 4 In the S2 step, the sample collector is composed of a small impurity collector, a medium impurity collector, a damaged particle collector (which simultaneously weighs the damaged particles), and an intact particle collector;

[0048] The lower part of the screening air separator is provided with four discharge outlets, i.e., a small impurity discharge outlet, a medium impurity discharge outlet, a damaged particle discharge outlet, and an intact particle discharge outlet; the inside is provided with two drum screens with different hole diameters, and is provided with a weighing system, an air supply system, and control software, so as to realize automatic impurity removal, particle classification, weighing, and determination of the proportion among the impurities, damaged particles, and intact particles in the sample;

[0049] The system includes an inspection and testing platform located below the sieve material at both the small and medium impurities discharge ports. A video monitoring system is installed above the testing platform to monitor quarantine-related alien organisms and plants. The discharge ports of the testing platforms are connected to the inlets of the small and medium impurities weighing hoppers, respectively. The discharge port of the small impurities weighing hopper is connected to its respective small impurity sample collector (e.g., small impurity sample collectors for systems #1, #2, ..., N), and the discharge port of the medium impurities weighing hopper is connected to its respective medium impurity sample collector (e.g., medium impurity sample collectors for systems #1, #2, ..., N). The sieve material from the damaged particle discharge port is damaged particles, corresponding to its respective damaged particle collector (e.g., damaged particle collectors for systems #1, #2, ..., N). The sieve material from the intact particle discharge port is intact particles, corresponding to its respective intact particle collector (e.g., intact particle collectors for systems #1, #2, ..., N).

[0050] The quality of quarantine samples is monitored by a video surveillance system. When the video surveillance system detects that the grain quality is substandard, the central control system moves the waste outlet of the quarantine sample tee to the substandard sample collector and stores the sample for future reference. When the quality is qualified by online detection, the quarantine sample tee is in the normal waste outlet position and the waste is sent into the waste outlet channel.

[0051] exist Figure 3 In step S2, the heterogeneous grain collector consists of a red heterogeneous grain collector, a green heterogeneous grain collector, a black heterogeneous grain collector, a weed grain collector, a miscellaneous grain and bean collector, and a seed coating agent collector. The red, green, black, weed, miscellaneous grain, miscellaneous grain, and seed coating agent, sorted by the intelligent heterogeneous grain sorter, are respectively fed into their respective red heterogeneous grain collectors (e.g., red heterogeneous grain collectors in systems #1, #2, ..., N) and green heterogeneous grain collectors (e.g., red heterogeneous grain collectors in system #1). The system includes green and black grain collectors (e.g., green and black grain collectors in systems 1, 2, ..., N), weed collectors (e.g., weed collectors in systems 1, 2, ..., N), grain and bean collectors (e.g., grain and bean collectors in systems 1, 2, ..., N), and seed coating agent collectors (e.g., seed coating agent collectors in systems 1, 2, ..., N).

[0052] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A resource-sharing grain inspection platform process, comprising a quarantine channel, an inspection channel, a public channel, and a central control system, characterized in that, The working steps are as follows: S1. In the public channel, a belt sampler is used to extract a sample from each batch of grain from each berth. The sample after initial impurity screening is stored in its respective auxiliary sample buffer. When the number of samples extracted reaches the specified number, auxiliary samples are formed. The central control system controls the auxiliary sample buffer to open the four-channel switch in sequence according to the order. The inspection and quarantine sample distributor sends the inspection auxiliary samples and quarantine auxiliary samples into the inspection channel and quarantine channel respectively. The remaining material is sent into the waste material channel as waste material. S2. In the quarantine channel, the quarantine sub-samples first enter the main weighing hopper through the quarantine emergency tee. After weighing, they are sent to the double-layer screening machine to separate out large impurities. The screened quarantine sub-samples are then sent to the quarantine sample secondary divider through the quarantine sample feeder. A portion of the quarantine sub-samples are reduced according to the prescribed ratio and sent to the air-separated sample weighing hopper for air separation and weighing. When the weight reaches the prescribed weight, the quarantine sample is sent to the screening air-separated machine through the quarantine sample tee. The quarantine sample separated by air separation is sent to the corresponding sample collector. If the weight of the quarantine sample after weighing in the air-separated sample weighing hopper is lower than the prescribed weight and does not meet the air separation conditions, the quarantine sample tee is moved to the waste material position, and the quarantine sample is sent to the waste material channel as waste. Another part of the quarantine samples are reduced in proportion according to the prescribed ratio and then sent to the intelligent heterogeneous particle sorter for color sorting. The quarantine samples that have been screened by color sorting are sent to the corresponding heterogeneous particle collector. In this process, the material on the sieve undergoes a second screening in a double-layer sieve machine to separate a small amount of grain from the large impurities. The separated grain is then sent back to the quarantine sample secondary divider. The outlet of the material on the sieve machine is connected to the weighing hopper. After the large impurities in the weighing hopper are weighed, the weight is compared with the weight of the quarantine sample weighed in the total weighing hopper during feeding to calculate the impurity content in the entire batch of grain. The sample collector consists of a small impurity collector, a medium impurity collector, a damaged particle collector, and a intact particle collector; the damaged particle collector also weighs the damaged particles. The lower part of the air classifier is equipped with four discharge ports: a small impurity discharge port, a medium impurity discharge port, a damaged particle discharge port, and a whole particle discharge port. It is equipped with two roller screens with different apertures, and has a built-in weighing system, air supply system, and control software to realize automatic impurity removal, particle classification, weighing, and determination of the ratio between impurities, damaged particles, and whole particles in the sample. The system includes an inspection and testing platform located below the sieve material from the small and medium impurities discharge ports. A video monitoring system is installed above the testing platform to monitor quarantine invasive species and plants. The discharge ports of the testing platforms are connected to the inlets of the small and medium impurities weighing hoppers, respectively. The discharge port of the small impurities weighing hopper is connected to the small impurities sample collector, and the discharge port of the medium impurities weighing hopper is connected to the medium impurities sample collector. The sieve material from the damaged grain discharge port is damaged grain, corresponding to a damaged grain collector. The sieve material from the intact grain discharge port is intact grain, corresponding to an intact grain collector. The quality of quarantine samples is monitored by a video surveillance system. When the video surveillance system detects that the grain quality is substandard, the central control system moves the waste outlet of the quarantine sample tee to the substandard sample collector and stores the sample for future reference. When the quality is qualified by online detection, the quarantine sample tee is in the normal waste outlet position and the waste is sent into the waste outlet channel. S3. In the testing channel, the sub-sample first enters the test sample feeder through the emergency testing tee, and then passes through the secondary and tertiary test sample reducers to reduce the sub-sample to the specified weight. The test sample is then sent to the sample weighing hopper for weighing. When the weight reaches the specified weight, the sample weighing tee moves to the sieve position, and the qualified test sample is sent to the bulk density meter to measure the moisture, bulk density, and temperature of the sample. The test sample with the measured bulk density is then sent to the protein analyzer to measure the moisture, temperature, ash, gluten, protein, fat, sedimentation value, fiber, starch, acid value, and water absorption rate of the granular grain sample. The remaining sample after testing is sent to the waste material channel as waste material. The test sample after being reduced by the secondary sample reducer is sent to the tertiary sample reducer, while the discarded sample is sent to the waste disposal channel. The tertiary sample reducer has two outlets. One outlet sends the reduced test sample to the laboratory sample weighing hopper for weighing. When the weight of the test sample is lower than the specified weight and does not meet the bulk density measurement conditions, the sample weighing tee moves to the waste disposal position and sends the test sample as waste into the waste disposal channel. The other outlet is where the shrunk test sample is fed into a four-stage test sample reducer. The four-stage reducer shrunk the sample to produce a laboratory analysis sample, which is then weighed. If the weight of the laboratory analysis sample is lower than the specified weight and cannot meet the laboratory weight requirement for a subsample, the test sample tee is moved to the waste disposal position, and the laboratory analysis sample is sent as waste to the waste collection conveyor. When the laboratory analysis weight is within acceptable limits, the test sample tee is moved to a four-channel switcher. The central control system controls the four-channel switcher to send the laboratory analysis sample into the corresponding test sample collector.

2. The process for a resource-sharing grain inspection platform according to claim 1, characterized in that, In step S1, the belt sampler simultaneously performs grain sampling and primary screening of large stones, soil clods, quarantine alien organisms, and plants; the belt sampler has two sampling methods: sampling at the head of the belt and sampling in the middle of the belt. In the belt head sampling method, the initial impurity screening and belt sampler are integrated and synchronously completed to complete the initial impurity screening and sampling. In the belt middle sampling method, the initial impurity screening is set on the sample chute at the rear end of the belt sampler. The initial impurity sample separated by the belt sampler is collected by the initial impurity sample collector, and the chute is sealed to the initial impurity sample collector.

3. The process for a resource-sharing grain inspection platform according to claim 1, characterized in that, In steps S1, S2, and S3, all the waste materials in the waste material channel are first sent to their respective buffer bins via the waste material collection belt conveyor. Then, the central control system controls the four-channel switcher to switch to the corresponding buffer bin according to the waste material situation, and the waste material is sent back to its respective port main belt conveyor via the waste material elevator.

4. The process for a resource-sharing grain inspection platform according to claim 1, characterized in that, In step S3, the inspection channel is equipped with a grain abnormality alarm device and an equipment abnormality alarm device. The grain abnormality alarm device tracks and detects the grain status. Once the temperature and moisture of the grain exceed the set warning value, an alarm is immediately triggered, and the operation of the grain conveying equipment at the port is quickly stopped, and customs personnel are notified to conduct on-site inspection. The equipment abnormality alarm device tracks and detects the equipment operation status. Once a fault is detected in a piece of equipment, an alarm is immediately triggered to notify the operators in the central control room, and the system switches to the emergency operation procedure to continue operation.

5. The process for a resource-sharing grain inspection platform according to claim 1, characterized in that, In step S2, the heterogeneous grain collector consists of a red heterogeneous grain collector, a green heterogeneous grain collector, a black heterogeneous grain collector, a weed grain collector, a miscellaneous grain and bean collector, and a seed coating agent collector. The red heterogeneous grains, green heterogeneous grains, black heterogeneous grains, weed grains, miscellaneous grains and beans, and seed coating agent separated by the intelligent heterogeneous grain sorter are respectively fed into the red heterogeneous grain collector, green heterogeneous grain collector, black heterogeneous grain collector, weed grain collector, miscellaneous grain and bean collector, and seed coating agent collector.

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