An apparatus for detecting online test indexes of raw grains

Abstract

The utility model relates to the technical field of grain inspection, and concretely relates to an equipment for on-line detection of raw grain test indexes, which comprises a feeder, a sample conveying pipeline connected to one side of the feeder, a sample thief connected to the sample conveying pipeline, a negative pressure equipment connected to the top of the feeder through a pipeline, a screening equipment connected to the bottom of the feeder through a pipeline, a first weighing mechanism arranged at the lower part of the impurity channel of the screening equipment, an impurity conveying pipe arranged at the lower part of the output end of the first weighing mechanism, a second weighing mechanism arranged at the lower part of the good material channel of the screening equipment, a first hopper arranged at the lower part of the output end of the second weighing mechanism, a visible container connected to the bottom of the first hopper, and an on-line near-infrared moisture meter and a visual imaging mechanism arranged at the two sides of the visible container respectively. The utility model is an equipment capable of detecting the quality inspection indexes of each raw grain material in real time during the unloading process, that is, the on-line inspection of the raw grain indexes is simultaneously performed while the raw grain vehicle is sampled.

Description

Technical Field

[0001] This utility model relates to the field of grain inspection technology, specifically to an online device for detecting raw grain test indicators. Background Technology

[0002] Grain purchasing companies need to inspect the quality of raw materials during the grain purchasing process. Currently, this is mainly done through sampling and testing. The samples are then tested to calculate the discount index for settlement. Generally, the sample weight for each truckload of grain is about 20 kilograms. The sample is then reduced in size and used for quality testing.

[0003] Currently, grain sampling is mainly done using sampling equipment. Typically, about 8-12 samples are randomly taken from each truck and then mixed together to form a sample for testing. A major problem is that if one (or several) samples are of lower quality than the others, it indicates that the quality of the grain near that sample is also significantly lower than that in other parts of the truck, suggesting a possible abnormal grain condition. However, after the samples are mixed together, the abnormal grain condition at a particular location may not be detected during quality inspection and testing. This could lead to companies accepting inferior grain during the grain procurement process, resulting in economic losses. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide an online device for detecting raw grain test indicators.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An online testing device for raw grain indicators includes a feeder, a sample conveying pipe connected to one side of the feeder, a sample conveying pipe connected to a sampler, a negative pressure device connected to the top of the feeder via a pipe, and a screening device connected to the bottom of the feeder via a pipe. A first weighing mechanism is installed at the lower part of the impurity channel of the screening device, and an impurity conveying pipe is installed at the lower part of the output end of the first weighing mechanism. A second weighing mechanism is installed at the lower part of the good material channel of the screening device, and a first hopper is installed at the lower part of the output end of the second weighing mechanism. A visual container is connected to the bottom of the first hopper. An online near-infrared moisture meter and a visual imaging mechanism are respectively installed on both sides of the visual container. A second hopper is installed at the lower part of the visual container, and a first metering device is installed at the lower part of the second hopper. An overflow channel is connected to one side of the second hopper, and an electronic bulk density meter is installed at the lower part of the first metering device.

[0006] In the above structure, after each sample is obtained, it can be tested immediately to obtain data such as the impurity content, moisture content, and bulk density of the current sample. Then, the next sample is taken for testing.

[0007] In addition, the grain size can be distinguished. Specifically, a second metering device is connected to one side of the first hopper. The output end of the second metering device is connected to a feeder, and the feeder is connected to the sorting mechanism through a feeding channel.

[0008] The sorting mechanism includes an annular channel, a turntable at the bottom of the annular channel, a camera and a light source at the top of the annular channel, and several feeding channels on the side of the annular channel. Each feeding channel has a corresponding nozzle at its top. The camera and light source are electrically connected to the control system, and the control system is electrically connected to the nozzle.

[0009] The sorting mechanism has a narrow annular channel that allows only one grain of grain to pass through at a time. The grains are lined up in the annular channel and move forward in sequence. The turntable drives the grains to move in the annular channel. During the movement, the camera takes pictures of the grains and sends the pictures back to the control system for judgment. If the size of the grains is within a certain range, the nozzles at the top of the feeding channel spray air to blow the grains into the feeding channel. This process is repeated to sort the grains into different sizes.

[0010] Each of the feeding channels is equipped with a third weighing mechanism at its lower part. The third weighing mechanism weighs samples of different sizes to obtain the particle size of the raw grain sample.

[0011] An airlock is installed at the bottom of the feeder to discharge the grain.

[0012] The screening equipment is a rotary vibrating screen, which is used to separate soil particles and gravel particles from the grain and send them into the impurity channel, while the grain is sent into the good material channel.

[0013] The first weighing mechanism includes a weighing hopper, an electronic scale is installed at the lower part of the weighing hopper, and a bottom valve is installed at the bottom of the weighing hopper. The structure of the second weighing mechanism is the same as that of the first weighing mechanism.

[0014] The first metering device includes a metering container, a pull-out switch plate is provided on the top of the metering container, and a switch valve is provided at the bottom of the metering container. The structure of the second metering device is the same as that of the first metering device.

[0015] The beneficial effects achieved by this utility model are: This invention relates to a device that can monitor the quality indicators of each sample of raw grain in real time during the unloading process. Specifically, it performs online testing of raw grain indicators while sampling the grain vehicle. The main method is to test the sample immediately after each sample is obtained, and obtain indicators such as moisture, bulk density, and impurities of the current sample. This allows for a comprehensive and accurate understanding of the grain condition in each area near the grain vehicle, preventing the presence of substandard grain in any part of the vehicle. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the sorting mechanism.

[0017] In the diagram: 1. Sampler; 2. Sample delivery pipeline; 3. Negative pressure device; 4. Feeder; 5. Airlock; 6. Sieving equipment; 7. Impurity channel; 81. Weighing hopper; 82. Electronic scale; 9. Good material channel; 10. Second weighing mechanism; 11. First hopper; 12. Second metering device; 13. Feeder; 14. Sorting mechanism; 141. Annular channel; 142. Turntable; 143. Light source; 144. Camera; 145. Nozzle; 146. Discharge channel; 15. Near-infrared moisture meter; 16. Visual container; 17. Second hopper; 18. Visual imaging mechanism; 19. First metering device; 20. Electronic bulk density meter; 21. Third weighing mechanism; 22. Control system; 23. Impurity delivery pipe. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example: like Figure 1 , Figure 2 As shown, an online testing device for raw grain indicators includes a feeder 4, one side of which is connected to a sample conveying pipe 2, which is connected to a sampler 1. The top of the feeder 4 is connected to a negative pressure device 3 via a pipe. The negative pressure device 3 can create a vacuum inside the feeder 4, generating a negative pressure attraction that draws grain from the sampler 1 into the feeder 4. An airlock 5 is installed at the bottom of the feeder 4. Existing vacuum equipment can be used for the negative pressure device 3.

[0020] The bottom of the feeder 4 is connected to the screening equipment 6 through a pipe. The screening equipment 6 is a rotary vibrating screen, which is used to separate soil particles and gravel particles from the grain and send them into the impurity channel 7, while the grain is sent into the good material channel 9.

[0021] A first weighing mechanism is installed at the lower part of the impurity channel 7 of the screening equipment 6, and an impurity conveying pipe 23 is installed at the lower part of the output end of the first weighing mechanism. A second weighing mechanism 10 is installed at the lower part of the good material channel 9 of the screening equipment 6, and a first hopper 11 is installed at the lower part of the output end of the second weighing mechanism 10. The first weighing mechanism includes a weighing hopper 81, an electronic scale 82 is installed at the lower part of the weighing hopper 81, and a bottom valve is installed at the bottom of the weighing hopper 81 to control the opening and closing of the bottom of the weighing hopper 81. The electronic scale 82 and the bottom valve are both electrically connected to the control system 22 for automated control.

[0022] The structures of the second weighing mechanism 10 and the third weighing mechanism 21 are the same as those of the first weighing mechanism.

[0023] The bottom of the first hopper 11 is connected to a visible container 16. An online near-infrared moisture meter 15 and a visual imaging mechanism 18 are respectively installed on both sides of the visible container 16. The online near-infrared moisture meter 15 and the visual imaging mechanism 18 are electrically connected to the control system 22. The moisture content and appearance quality of the grain are detected through the online near-infrared moisture meter 15 and the visual imaging mechanism 18. An industrial camera is used for the visual imaging mechanism 18.

[0024] The visible container 16 is made of transparent material and has openings at both the top and bottom. A partition can be installed in the middle of the visible container 16 to divide the material into two flow channels, which are used for detection by the online near-infrared moisture meter 15 and the visual imaging mechanism 18, respectively.

[0025] A second hopper 17 is provided at the lower part of the visible container 16, and a first metering device 19 is provided at the lower part of the second hopper 17. One side of the second hopper 17 is connected to an overflow channel, which is connected to an impurity conveying pipe 23. An electronic bulk density meter 20 is provided at the lower part of the first metering device 19. The electronic bulk density meter 20 is an existing structure used to measure bulk density.

[0026] The first metering device 19 includes a metering container. A pull-out switch plate is installed on the top of the metering container, which can open or close the top of the container. The pull-out switch plate is connected to a telescopic structure such as a cylinder or electric cylinder to control its movement, thereby controlling the opening and closing of the top of the metering container. A switch valve is installed at the bottom of the metering container to control the discharge of material. When grain enters the metering container and exceeds the opening at the top, the pull-out switch plate moves horizontally to close the top of the container, thus obtaining a fixed volume of grain within the metering container. The bottom switch valve then opens, discharging the metered amount of grain into the electronic bulk density meter 20.

[0027] The structure of the second metering device 12 is the same as that of the first metering device 19.

[0028] Furthermore, this utility model can also distinguish the size of grain particles. Specifically, a second metering device 12 is connected to one side of the first hopper 11. The output end of the second metering device 12 is connected to the feeder 13, and the feeder 13 is connected to the sorting mechanism 14 through the feeding channel.

[0029] The feeder 13 can be any existing feeder or delivery device.

[0030] The sorting mechanism 14 includes an annular channel 141. A turntable 142 is provided at the lower part of the annular channel 141. The turntable 142 is driven by a motor or other power source. A camera 144 and a light source 143 are provided at the upper part of the annular channel 141. Several feeding channels 146 are provided on the side of the annular channel 141. A nozzle 145 is provided at the upper part of each feeding channel 146. The camera 144 and the light source 143 are electrically connected to the control system 22. The control system 22 is electrically connected to the nozzle 145.

[0031] The sorting mechanism 14 is mainly used to separate grains of different sizes, especially suitable for larger grains such as corn. The annular channel 141 is narrow, allowing only one grain to pass through at a time. Therefore, the grains are lined up in the annular channel 141, and the turntable 142 drives the grains to move. During the movement, the camera 144 takes pictures of the grains and sends them back to the control system 22 for judgment. If the size of the grain is within a certain range, the nozzle 145 at the top of the feeding channel 146 sprays air to blow the grains into the feeding channel 146. This process is repeated to move forward and make judgments and classifications, thereby sorting out grains of different sizes.

[0032] In addition, a third weighing mechanism 21 is provided at the bottom of each feeding channel 146. The third weighing mechanism 21 weighs samples of different sizes to obtain the particle size of the raw grain sample.

[0033] The working principle of the camera 144, control system 22 and nozzle 145 in the above structure for sample separation and feeding is similar to the working principle of the parallel impurity sorting machine described in Chinese patent CN223209966U, entitled "An Unmanned Intelligent Inspection Machine for Grain Impurities".

[0034] The grain flowing out from the impurity conveying pipe 23, the output end of the electronic bulk density device 20, and the third weighing mechanism 21 is finally transported into the subsequent silo through the pipeline.

Claims

1. A device for online detection of raw grain test indicators, characterized in that, Includes a feeder (4), one side of which is connected to a sample conveying pipe (2), which is connected to a sampler (1). The top of the feeder (4) is connected to a negative pressure device (3) via a pipe, and the bottom of the feeder (4) is connected to a screening device (6) via a pipe. A first weighing mechanism is set at the lower part of the impurity channel (7) of the screening device (6), and an impurity conveying pipe (23) is set at the lower part of the output end of the first weighing mechanism. A second weighing mechanism (10) is set at the lower part of the good material channel (9) of the screening device (6). The weighing mechanism (10) has a first hopper (11) at the bottom of its output end. The bottom of the first hopper (11) is connected to a visual container (16). An online near-infrared moisture meter (15) and a visual imaging mechanism (18) are respectively installed on both sides of the visual container (16). The lower part of the visual container (16) has a second hopper (17). The lower part of the second hopper (17) has a first metering device (19). One side of the second hopper (17) is connected to an overflow channel. The lower part of the first metering device (19) has an electronic bulk density meter (20).

2. The equipment for online detection of raw grain test indicators according to claim 1, characterized in that, A second metering device (12) is connected to one side of the first hopper (11). The output end of the second metering device (12) is connected to the feeder (13). The feeder (13) is connected to the sorting mechanism (14) through the feeding channel.

3. The equipment for online detection of raw grain test indicators according to claim 2, characterized in that, The sorting mechanism (14) includes an annular channel (141), a turntable (142) is provided at the lower part of the annular channel (141), a camera (144) and a light source (143) are provided at the upper part of the annular channel (141), and several feeding channels (146) are provided on the side of the annular channel (141). Each feeding channel (146) is provided with a nozzle (145) at the upper part. The camera (144) and the light source (143) are electrically connected to the control system (22), and the control system (22) is electrically connected to the nozzle (145).

4. The equipment for online detection of raw grain test indicators according to claim 3, characterized in that, Each of the feeding channels (146) is provided with a third weighing mechanism (21) at its lower part.

5. The equipment for online detection of raw grain test indicators according to claim 1, characterized in that, An airlock (5) is provided at the bottom of the feeder (4).

6. The equipment for online detection of raw grain test indicators according to claim 1, characterized in that, The screening equipment (6) is a rotary vibrating screen.

7. The equipment for online detection of raw grain test indicators according to claim 1, characterized in that, The first weighing mechanism includes a weighing hopper (81), an electronic scale (82) is provided at the lower part of the weighing hopper (81), and a bottom valve is provided at the bottom of the weighing hopper (81). The structure of the second weighing mechanism (10) is the same as that of the first weighing mechanism.

8. The equipment for online detection of raw grain test indicators according to claim 2, characterized in that, The first metering device (19) includes a metering container, a pull-out switch plate is provided on the top of the metering container, and a switch valve is provided at the bottom of the metering container. The structure of the second metering device (12) is the same as that of the first metering device (19).

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