Detection device for ferroferric oxide

Abstract

The invention relates to the technical field of ferroferric oxide detection, in particular to a ferroferric oxide detection device which comprises a sealing box, and the lower surface of the sealing box is fixedly communicated with a discharging pipe; an output shaft is rotatably connected in the isolating ring, a connecting rod is fixedly connected to a rod body of the output shaft, a material receiving barrel is fixedly connected to the end, away from the output shaft, of the connecting rod, a lower cover plate is rotatably connected to the bottom end of the material receiving barrel, and a feeding pipe communicates with the inner wall of the discharging pipe; and the end, away from the discharging pipe, of the feeding pipe communicates with a plurality of flow dividing pipes, intelligent infrared moisture sensors are inserted into the inner walls of the flow dividing pipes correspondingly, and the inner walls of the flow dividing pipes are slidably connected with sweeping inclined blocks correspondingly. According to the invention, sealed on-line sampling, automatic agglomeration scattering, multi-channel synchronous detection, automatic cleaning of a sensor window and automatic residue removal of a material receiving assembly of ferroferric oxide magnetic powder are realized, so that the accuracy of a detection result is improved.

Description

Technical Field

[0001] This invention relates to the field of iron oxide detection technology, specifically to an iron oxide detection device. Background Technology

[0002] Ferric oxide (Fe3O4) magnetic powder is an important functional material widely used in magnetic recording media, microwave absorption, biomedicine, and specialty coatings. In the production of magnetic powder, moisture content is a key indicator of product quality. According to process requirements, the moisture content of dried magnetic powder must be controlled below 0.5%. If the moisture content exceeds this limit, it will directly affect the flowability, dispersibility, and subsequent processing performance of the magnetic powder, and may even lead to product failure. Therefore, accurate detection of the moisture content of magnetic powder is a crucial step in ensuring product quality stability.

[0003] Currently, magnetic powder manufacturers typically use manual sampling at the dryer outlet followed by offline testing using oven drying or infrared moisture meters. However, this method has significant drawbacks: firstly, the high humidity at the outlet makes it easy for external moisture to adhere to the magnetic powder surface during sampling, causing the test results to deviate from the true value; secondly, the strong magnetism of the dried magnetic powder makes it prone to agglomeration, and the moisture trapped within these agglomerates is difficult to detect effectively using conventional methods, further affecting the accuracy of moisture content detection. Furthermore, the detection window of intelligent infrared moisture sensors used to detect magnetic powder moisture is often covered by the magnetic powder, leading to a decrease in detection accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a detection device for iron(III) oxide to solve the problems mentioned in the background art, such as the easy agglomeration of magnetic powder and the decrease in detection accuracy caused by magnetic powder covering the detection window.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a detection device for ferric oxide, comprising a sealed box, wherein an isolation ring is fixedly connected to the bottom surface of the inner wall of the sealed box; a receiving pipe is fixedly connected to the upper surface of the sealed box, and a discharge pipe is fixedly connected to the lower surface of the sealed box; an output shaft is rotatably connected inside the isolation ring, a connecting rod is fixedly connected to the shaft of the output shaft, a receiving bucket is fixedly connected to the end of the connecting rod away from the output shaft, and a lower cover plate is rotatably connected to the bottom end of the receiving bucket; a discharge pipe is connected to the bottom end of the sealed box, a crushing rod is rotatably connected inside the discharge pipe, a feeding pipe is connected to the inner wall of the discharge pipe, and multiple diversion pipes are connected to the end of the feeding pipe away from the discharge pipe; intelligent infrared moisture sensors are inserted into the inner walls of the multiple diversion pipes, and cleaning inclined blocks are slidably connected to the inner walls of the multiple diversion pipes.

[0006] Furthermore, a first driving unit is fixedly connected to the top of the sealing box, the top of the output shaft is fixedly connected to the output end of the first driving unit, and an annular channel is formed between the isolation ring and the inner wall of the sealing box.

[0007] Furthermore, the isolation ring has an inclined groove, and a cleaning plate is fixedly connected to the shaft of the output shaft. The connecting rod and the cleaning plate slide through the inclined groove. The receiving bucket, the lower cover plate, and the cleaning plate all slide within the annular channel. The bottom surfaces of the cleaning plate and the lower cover plate slide against the surface of the annular channel.

[0008] Furthermore, the surface of the annular channel is provided with a discharge port, and the inner wall of the discharge port is fixedly connected with multiple horizontal plates. The bottom surface of the sealed box is connected to a discharge pipe, and the discharge pipe is connected to the discharge port.

[0009] Furthermore, the surface of the annular channel is provided with a material discharge port, the bottom surface of the sealed box is fixedly connected to a material discharge box, the material discharge box is connected to the material discharge port, and the material discharge pipe is connected to the bottom end of the material discharge box.

[0010] Furthermore, a screen and a sealing plate are fixedly connected inside the discharge pipe. The screen is located above the sealing plate. A second drive unit is fixedly connected to the bottom end of the discharge pipe. A rotating shaft is fixedly connected to the output end of the second drive unit. The rotating shaft passes through the screen and the sealing plate from bottom to top. A crushing rod is fixedly connected to the top end of the rotating shaft.

[0011] Furthermore, an air supply pipe is connected to the side wall of the material discharge pipe, with the air supply end of the air supply pipe located between the screen and the sealing plate, and the air inlet end of the material feeding pipe located between the screen and the sealing plate.

[0012] Furthermore, a first conical tube is fixedly connected to the inner wall of the receiving pipe, a second conical tube is fixedly connected to the inner wall of the discharging pipe, and a collection trough is provided at one end of the annular channel near the discharge port.

[0013] Furthermore, an extension rod is fixedly connected to the bottom end of the output shaft, and a cam plate is fixedly connected to the bottom end of the extension rod.

[0014] Furthermore, a retraction rod is slidably connected to the end of the multiple diversion pipes away from the feed pipe. A spring is sleeved on the body of the retraction rod. The cleaning wedge is fixedly connected to the end of the retraction rod near the feed pipe. A receiving chamber is formed between the cleaning wedge and the pipe wall of the diversion pipe. The spring is located in the receiving chamber. The two ends of the spring are fixedly connected to the cleaning wedge and the pipe wall of the diversion pipe, respectively. A side plate is fixedly connected to the end of the retraction rod away from the feed pipe. The discharge ends of the multiple diversion pipes are connected to a common collecting pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This detection device for ferric oxide magnetic powder takes samples within a sealed container, avoiding interference from external moisture in the sealed environment. A crushing rod breaks up agglomerated magnetic powder, and multiple intelligent infrared moisture sensors detect the powder simultaneously, preventing distortion from a single intelligent infrared moisture sensor malfunction, thereby improving the accuracy and reliability of ferric oxide magnetic powder moisture detection.

[0016] 2. This ferric oxide magnetic powder detection device uses a cam plate to drive a cleaning inclined block to clean the detection window of the intelligent infrared moisture sensor in real time; the discharge port cooperates with the horizontal plate to automatically clean the material receiving bucket and the lower cover plate of residual material. No manual maintenance is required, avoiding magnetic powder adhesion and residual material contamination, and the device has a high degree of automation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the sealed box of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the internal structure of the sealed box of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the diversion tube of the present invention; Figure 6 This is a cross-sectional view of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram of section A; Figure 8 For the present invention Figure 6 Enlarged structural diagram of part B.

[0018] In the attached diagram, the components represented by each number are as follows: 1. Sealing box; 2. Receiving pipe; 3. Discharge pipe; 4. First drive unit; 5. Drop box; 6. Drop pipe; 7. Second drive unit; 8. Air supply pipe; 9. Extension rod; 10. Feeding pipe; 11. Cam plate; 12. Feeding pipe; 13. Isolation ring; 14. Annular channel; 15. Receiving bucket; 16. Lower cover plate; 17. Output shaft; 18. Connecting rod; 19. 20. Sweeping plate; 21. Inclined chute; 22. Discharge port; 23. Horizontal plate; 24. Drop port; 25. Collection trough; 26. Crushing rod; 27. Screen; 28. Diverter pipe; 29. ​​Collector pipe; 30. Intelligent infrared moisture sensor; 31. Side plate; 32. Retraction rod; 33. Sweeping inclined block; 34. Reception chamber; 35. Spring; 36. First cone tube; 37. Second cone tube; 38. Sealing plate; 39. Rotating shaft. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a technical solution: such as Figure 1 - Figure 8 The device for detecting iron(III) oxide (Fe3O4) includes a sealed box 1, with an isolation ring 13 fixedly connected to the bottom surface of the inner wall of the sealed box 1; a receiving pipe 2 is fixedly connected to the upper surface of the sealed box 1, and a discharge pipe 3 is fixedly connected to the lower surface of the sealed box 1; an output shaft 17 is rotatably connected inside the isolation ring 13, a connecting rod 18 is fixedly connected to the shaft of the output shaft 17, a receiving bucket 15 is fixedly connected to the end of the connecting rod 18 away from the output shaft 17, and a lower cover plate 16 is rotatably connected to the bottom end of the receiving bucket 15; a discharge pipe 6 is connected to the bottom end of the sealed box 1, a crushing rod 25 is rotatably connected inside the discharge pipe 6, a feeding pipe 12 is connected to the inner wall of the discharge pipe 6, and multiple diversion pipes 27 are connected to the end of the feeding pipe 12 away from the discharge pipe 6; intelligent infrared moisture sensors 29 are inserted into the inner walls of the multiple diversion pipes 27, and cleaning inclined blocks 32 are slidably connected to the inner walls of the multiple diversion pipes 27.

[0021] In this invention, the sealing box 1 remains closed throughout the process, preventing external humid air from entering the interior and avoiding the adsorption of external moisture by the ferric oxide magnetic powder during sampling and testing. This avoids the problem of inaccurate test results due to high humidity in the sampling environment. The receiving pipe 2 is used to directly connect to the discharge port of the dryer and receive the ferric oxide magnetic powder on the production line in real time. No manual sampling is required, realizing online automated sampling. The discharge pipe 3 is responsible for allowing the magnetic powder to flow out smoothly for collection when sampling and testing are not being performed, without affecting the normal production discharge process.

[0022] The isolation ring 13 is fixed inside the sealed box 1 to separate the internal space and, together with the output shaft 17, forms a stable operating area. The output shaft 17, as a transmission component, drives the connecting rod 18 and the receiving bucket 15 to perform circumferential motion, completing the receiving, transfer, and unloading of magnetic powder. The receiving bucket 15 is used to receive a quantitative amount of magnetic powder sample. The lower cover plate 16 controls the opening and closing of the bottom of the receiving bucket 15 to achieve automatic sample unloading. The crushing rod 25 rotates inside the discharge pipe 6 to specifically break up the agglomerates of magnetic powder caused by magnetism, preventing moisture trapped inside the agglomerates from affecting the magnetic powder. The test results show that the feeding pipe 12 conveys the dispersed magnetic powder out, and multiple diversion pipes 27 divide the magnetic powder into multiple paths, allowing each path of magnetic powder to be detected individually. The intelligent infrared moisture sensor 29 is inserted into the diversion pipe 27 to directly detect the moisture of the diverted magnetic powder. Multi-path synchronous detection can avoid the distortion of detection results caused by the failure of a single sensor. The cleaning wedge 32 slides inside the diversion pipe 27 to clean the detection window of the intelligent infrared moisture sensor 29, preventing magnetic powder from adhering to the window and obstructing the detection area, thus ensuring detection accuracy.

[0023] refer to Figure 1 - Figure 8 The top of the sealing box 1 is fixedly connected to the first drive unit 4, and the top of the output shaft 17 is fixedly connected to the output end of the first drive unit 4. An annular channel 14 is formed between the isolation ring 13 and the inner wall of the sealing box 1. An inclined groove 20 is provided on the ring body of the isolation ring 13. A cleaning plate 19 is fixedly connected to the rod body of the output shaft 17. The connecting rod 18 and the cleaning plate 19 slide through the inclined groove 20. The receiving bucket 15, the lower cover plate 16 and the cleaning plate 19 all slide in the annular channel 14. The bottom surfaces of 9 and the lower cover plate 16 are slidably attached to the surface of the annular channel 14; the surface of the annular channel 14 is provided with a discharge port 21, and multiple horizontal plates 22 are fixedly connected to the inner wall of the discharge port 21; the bottom surface of the sealing box 1 is connected to the discharge pipe 10, and the discharge pipe 10 is connected to the discharge port 21; the surface of the annular channel 14 is provided with a drop port 23, and the bottom surface of the sealing box 1 is fixedly connected to the drop box 5, the drop box 5 is connected to the drop port 23, and the drop pipe 6 is connected to the bottom end of the drop box 5.

[0024] In this invention, the first drive unit 4 provides power for the rotation of the output shaft 17, ensuring that the receiving bucket 15 and the cleaning plate 19 can operate at a uniform speed and stably. The annular channel 14 is the moving track of the receiving bucket 15, the lower cover plate 16, and the cleaning plate 19, which slides in close contact throughout the process to ensure that the components do not shake or deviate during the movement. The inclined groove 20 is formed on the ring body of the isolation ring 13, which is specifically designed for the connecting rod 18 and the cleaning plate 19 to pass through. It does not affect the rotation of the output shaft 17, but allows the connecting rod 18 to drive the receiving bucket 15 and the cleaning plate 19 to slide smoothly in the annular channel 14. The cleaning plate 19 rotates synchronously with the output shaft 17, and its bottom surface is always in contact with the surface of the annular channel 14. It can clean the magnetic powder scattered in the annular channel 14 in real time, and avoid the accumulation of magnetic powder affecting the sliding of the parts. The cleaning plate 19 sweeps the magnetic powder scattered in the annular channel 14 into the collection tank 24 and collects it. The discharge port 21 is located on the surface of the annular channel 14, and is positioned below the plane of the annular channel 14, so that the lower cover plate 16 can be partially opened and closed to clean up residual material. Multiple horizontal plates 22 are evenly distributed on the inner wall of the discharge port 21 to press against the lower cover plate 16, causing the lower cover plate 16 to repeatedly open and close and collide, shaking off the residual magnetic powder. The discharge pipe 10 is connected to the discharge port 21 and is specifically used to collect the residual material cleaned from the receiving bucket 15 and the lower cover plate 16, and discharge it uniformly to avoid pollution.

[0025] The discharge port 23 is used to receive magnetic powder samples. When the receiving bucket 15 moves to this position, the lower cover plate 16 loses the support of the surface of the annular channel 14 and automatically opens, allowing the magnetic powder sample to fall into the discharge box 5. The discharge box 5 acts as a transition guide, smoothly guiding the magnetic powder sample falling from the discharge port 23 into the discharge pipe 6, ensuring that the magnetic powder will not scatter or leak.

[0026] refer to Figure 1 - Figure 8 A screen 26 and a sealing plate 37 are fixedly connected inside the discharge pipe 6. The screen 26 is located above the sealing plate 37. A second drive unit 7 is fixedly connected to the bottom end of the discharge pipe 6. A rotating shaft 38 is fixedly connected to the output end of the second drive unit 7. The rotating shaft 38 passes through the screen 26 and the sealing plate 37 from bottom to top. A crushing rod 25 is fixedly connected to the top end of the rotating shaft 38. An air supply pipe 8 is connected to the side wall of the discharge pipe 6. The air supply end of the air supply pipe 8 is located between the screen 26 and the sealing plate 37. The air inlet end of the feeding pipe 12 is located between the screen 26 and the sealing plate 37. A first cone pipe 35 is fixedly connected to the inner wall of the receiving pipe 2. A second cone pipe 36 is fixedly connected to the inner wall of the discharge pipe 3. A collection trough 24 is opened at one end of the annular channel 14 near the discharge port 23.

[0027] In this invention, the screen 26 is fixed inside the feed pipe 6 to filter the magnetic powder sample. Only magnetic powder that has been broken up by the crushing rod 25 and meets the particle size requirements can pass through the screen 26. Unbroken agglomerates remain above the screen 26 and are continuously struck by the crushing rod 25 until they are broken up. The sealing plate 37 is located below the screen 26 and acts as a seal for the air passage, allowing the gas input from the gas supply pipe 8 to flow only in the space between the screen 26 and the sealing plate 37, ensuring that the gas can stably blow the magnetic powder into the feed pipe 12. The second drive unit 7 provides power for the rotation of the crushing rod 25. The rotating shaft 38 passes through the screen 26 and the sealing plate 37, driving the crushing rod 25 to rotate at a uniform speed, continuously striking and breaking up the magnetic powder agglomerates, thus solving the problem of moisture trapped in the agglomerates and making them undetectable.

[0028] The air supply pipe 8 is used to connect to an external compressed air source to deliver high-pressure airflow into the space between the screen 26 and the sealing plate 37. The airflow propels the dispersed magnetic powder into the feeding pipe 12, realizing automated feeding of magnetic powder, which does not rely solely on gravity to drop the material, thereby improving feeding efficiency.

[0029] The first conical tube 35 is fixed to the inner wall of the receiving tube 2 and has a conical structure. It can accurately guide the magnetic powder in the receiving tube 2. During normal production, the magnetic powder falls directly into the discharge tube 3. During sampling, it falls accurately into the receiving bucket 15 without scattering. The second conical tube 36 is fixed to the inner wall of the discharge tube 3 and works with the first conical tube 35 to collect the magnetic powder that is discharged normally, allowing the magnetic powder to flow smoothly out of the sealed box 1.

[0030] The collection trough 24 is located near the discharge port 23 in the annular channel 14 to collect a small amount of scattered magnetic powder during the transfer process, keep the inside of the sealed box 1 clean, and avoid contamination by residual material.

[0031] refer to Figure 1 - Figure 8 An extension rod 9 is fixedly connected to the bottom end of the output shaft 17, and a cam plate 11 is fixedly connected to the bottom end of the extension rod 9. A retraction rod 31 is slidably connected to the end of multiple diversion pipes 27 away from the feed pipe 12. A spring 34 is sleeved on the rod body of the retraction rod 31. A cleaning wedge 32 is fixedly connected to the end of the retraction rod 31 near the feed pipe 12. A receiving chamber 33 is formed between the cleaning wedge 32 and the pipe wall of the diversion pipe 27. The spring 34 is located in the receiving chamber 33. The two ends of the spring 34 are fixedly connected to the cleaning wedge 32 and the pipe wall of the diversion pipe 27, respectively. A side plate 30 is fixedly connected to the end of the retraction rod 31 away from the feed pipe 12. The discharge ends of multiple diversion pipes 27 are connected to a common collecting pipe 28.

[0032] In this invention, the extension rod 9 is fixed to the bottom end of the output shaft 17 and rotates synchronously with the output shaft 17, driving the cam plate 11 at the bottom end to make a circular motion. The cam plate 11 has an asymmetrical structure at its long and short ends. During the rotation, it will alternately push the side plate 30 to provide power for the movement of the cleaning inclined block 32. The retraction lever 31 is slidably connected to the end of the diversion pipe 27 to drive the cleaning ramp 32 to slide linearly back and forth. The spring 34 is sleeved on the body of the retraction lever 31 and is located inside the receiving chamber 33. Normally, it remains in an extended state. When the cam plate 11 does not push the side plate 30, the elastic force of the spring 34 can drive the cleaning ramp 32 to automatically reset, preparing for the next cleaning. The receiving chamber 33 is the installation space of the spring 34, which can both protect the spring 34 and limit the extension range of the spring 34, ensuring that the elastic force acts stably on the cleaning ramp 32. The cleaning ramp 32 is fixed to the end of the retraction lever 31 with the inclined section facing downward. When sliding, it can directly contact the detection window of the intelligent infrared moisture sensor 29 to thoroughly clean the attached magnetic powder. The inclined surface can also guide the magnetic powder in the diversion pipe 27 to flow smoothly downward and not accumulate inside the diversion pipe 27. The side plate 30 is fixed to the outer end of the retraction lever 31 and has a large area, which facilitates the precise contact and push of the cam plate 11 to ensure stable triggering of the cleaning action.

[0033] Working principle: The receiving pipe 2 is directly connected to the outlet of the dryer, receiving the completed ferric oxide magnetic powder in real time. When the device does not perform sampling and testing, the magnetic powder enters from the receiving pipe 2, flows along the first conical pipe 35, falls directly into the second conical pipe 36, and finally flows out of the sealing box 1 through the discharge pipe 3 for unified collection. The whole process does not interfere with the normal production process. When sampling and testing are required, the first drive unit 4 is started. The first drive unit 4 drives the output shaft 17 to rotate at a constant speed. The output shaft 17 drives the receiving bucket 15 to slide in the annular channel 14 through the connecting rod 18. When the receiving bucket 15 moves to the bottom between the receiving pipe 2 and the discharge pipe 3, the magnetic powder in the receiving pipe 2 will fall accurately into the receiving bucket 15, completing the quantitative sample reception.

[0034] After the receiving bucket 15 collects the magnetic powder sample, the first drive unit 4 continues to drive the output shaft 17 to rotate. The receiving bucket 15, carrying the magnetic powder sample, continues to slide in the annular channel 14 until it moves directly above the discharge port 23. At this time, the plane of the annular channel 14 no longer supports the lower cover plate 16, and the lower cover plate 16 loses its support and rotates downward to open. All the magnetic powder sample inside the receiving bucket 15 falls into the discharge port 23, and then smoothly enters the screen 26 inside the discharge tube 6 through the discharge box 5, thus completing the automatic unloading of the sample.

[0035] After the magnetic powder sample falls onto the screen 26, the second drive unit 7 is activated. The second drive unit 7 drives the rotating shaft 38 to rotate, and the rotating shaft 38 drives the crushing rod 25 to rotate at a constant speed above the screen 26. The crushing rod 25 continuously strikes the magnetic powder, completely breaking up the agglomerates formed by magnetism. Only the broken up qualified magnetic powder can pass through the screen 26 and enter the space formed between the screen 26 and the sealing plate 37. At the same time, the air supply pipe 8 is connected to an external compressed air source, which continuously delivers high-pressure airflow into the space between the screen 26 and the sealing plate 37. The airflow generates thrust, which quickly blows the broken up magnetic powder into the inside of the feeding pipe 12, completing the automated feeding.

[0036] The magnetic powder entering the feed pipe 12 is evenly distributed into multiple distribution pipes 27. The intelligent infrared moisture sensor 29 inserted into the inner wall of each distribution pipe 27 will simultaneously detect the moisture of the distributed magnetic powder. The simultaneous detection by multiple magnetic powder channels and multiple intelligent infrared moisture sensors 29 improves the accuracy of the detection results and avoids the problem of data distortion caused by the failure of a single intelligent infrared moisture sensor 29.

[0037] While the first drive unit 4 drives the output shaft 17 to rotate, the extension rod 9 is fixedly connected to the output shaft 17 and rotates synchronously with the output shaft 17. The cam plate 11 at the bottom of the extension rod 9 also performs a circular motion. In the initial state, the shorter end of the cam plate 11 is opposite to the side plate 30. At this time, the cam plate 11 is not in contact with the side plate 30, and the cleaning wedge 32 is in a stationary state. As the cam plate 11 continues to rotate, its longer end will gradually abut against and push the side plate 30. The side plate 30 is forced to move the retraction rod 31 to the outside of the diversion pipe 27. When the retraction rod 31 moves, it compresses the spring 34 inside the receiving chamber 33. Simultaneously, the cleaning ramp 32 slides inside the diversion tube 27. When the cleaning ramp 32 slides, it directly sweeps over the detection window of the intelligent infrared moisture sensor 29 placed inside the diversion tube 27, thoroughly cleaning the magnetic powder attached to the window and preventing the magnetic powder from obstructing the detection accuracy. The inclined section of the cleaning ramp 32 is set downwards, and after cleaning, it can also guide the magnetic powder in the diversion tube 27, allowing it to enter the collection tube 28 more smoothly for unified collection. The cam plate 11 continues to rotate, and after the longer end disengages from the side plate 30, the elastic force of the spring 34 drives the cleaning ramp 32, the retraction rod 31, and the side plate 30 to automatically reset, waiting for the next cleaning.

[0038] After the receiving bucket 15 finishes unloading, it continues to slide within the annular channel 14 following the output shaft 17, moving to the position of the discharge port 21. Since the discharge port 21 is lower than the plane of the annular channel 14, the lower cover plate 16 will be in a semi-open state. As the receiving bucket 15 and the lower cover plate 16 continue to move, the lower cover plate 16 will continuously hit the horizontal plate 22 on the inner wall of the discharge port 21. The lower cover plate 16 closes upward under the pressure of the horizontal plate 22, and immediately opens again after separating from the horizontal plate 22. During the repeated opening and closing collision process, all the magnetic powder remaining on the inner wall of the receiving bucket 15 and the lower cover plate 16 will be shaken off and fall into the discharge port 21, and then discharged uniformly through the discharge pipe 10, thoroughly cleaning the residual material and avoiding the residual magnetic powder from affecting the accuracy of the next sampling test.

[0039] When the output shaft 17 rotates, the cleaning plate 19 rotates synchronously, and its bottom surface always adheres to the surface of the annular channel 14 to clean up the small amount of magnetic powder scattered in the annular channel 14. The scattered magnetic powder is pushed into the collection tank 24 for unified collection, keeping the inside of the sealed box 1 clean and preventing the accumulation of residual material.

[0040] Both the first drive unit 4 and the second drive unit 7 are servo motors.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detection device for iron(III) oxide, comprising a sealed box (1), characterized in that: An isolation ring (13) is fixedly connected to the bottom surface of the inner wall of the sealed box (1). The upper surface of the sealing box (1) is fixedly connected to the receiving pipe (2), and the lower surface of the sealing box (1) is fixedly connected to the discharge pipe (3). An output shaft (17) is rotatably connected inside the isolation ring (13). A connecting rod (18) is fixedly connected to the shaft of the output shaft (17). A receiving bucket (15) is fixedly connected to the end of the connecting rod (18) away from the output shaft (17). A lower cover plate (16) is rotatably connected to the bottom end of the receiving bucket (15). The bottom end of the sealed box (1) is connected to a discharge pipe (6), and a crushing rod (25) is rotatably connected inside the discharge pipe (6). A feeding pipe (12) is connected to the inner wall of the discharge pipe (6). A plurality of diversion pipes (27) are connected to the end of the feeding pipe (12) away from the discharge pipe (6). A smart infrared moisture sensor (29) is inserted into the inner wall of each of the plurality of diversion pipes (27). A cleaning sloping block (32) is slidably connected to the inner wall of each of the plurality of diversion pipes (27).

2. The detection device for iron(III) oxide according to claim 1, characterized in that: The top of the sealing box (1) is fixedly connected to the first driving part (4), the top of the output shaft (17) is fixedly connected to the output end of the first driving part (4), and an annular channel (14) is formed between the isolation ring (13) and the inner wall of the sealing box (1).

3. The detection device for iron(III) oxide according to claim 2, characterized in that: The isolation ring (13) has a groove (20) on its ring body. A cleaning plate (19) is fixedly connected to the shaft of the output shaft (17). The connecting rod (18) and the cleaning plate (19) slide through the groove (20). The receiving bucket (15), the lower cover plate (16) and the cleaning plate (19) slide in the annular channel (14). The bottom surfaces of the cleaning plate (19) and the lower cover plate (16) slide against the surface of the annular channel (14).

4. The detection device for iron(III) oxide according to claim 2, characterized in that: The surface of the annular channel (14) is provided with a discharge port (21), and a plurality of horizontal plates (22) are fixedly connected to the inner wall of the discharge port (21). The bottom surface of the sealing box (1) is connected to a discharge pipe (10), and the discharge pipe (10) is connected to the discharge port (21).

5. The detection device for iron(III) oxide according to claim 2, characterized in that: The surface of the annular channel (14) is provided with a material discharge port (23), and a material discharge box (5) is fixedly connected to the bottom surface of the sealing box (1). The material discharge box (5) is connected to the material discharge port (23), and the material discharge pipe (6) is connected to the bottom end of the material discharge box (5).

6. The detection device for iron(III) oxide according to claim 5, characterized in that: A screen (26) and a sealing plate (37) are fixedly connected inside the discharge pipe (6). The screen (26) is located above the sealing plate (37). A second drive unit (7) is fixedly connected to the bottom end of the discharge pipe (6). A rotating shaft (38) is fixedly connected to the output end of the second drive unit (7). The rotating shaft (38) passes through the screen (26) and the sealing plate (37) from bottom to top. A crushing rod (25) is fixedly connected to the top end of the rotating shaft (38).

7. The detection device for iron(III) oxide according to claim 6, characterized in that: The side wall of the discharge pipe (6) is connected to an air supply pipe (8). The air supply end of the air supply pipe (8) is located between the screen (26) and the sealing plate (37), and the air inlet end of the feed pipe (12) is located between the screen (26) and the sealing plate (37).

8. The detection device for iron(III) oxide according to claim 5, characterized in that: The receiving pipe (2) is fixedly connected to the inner wall of the first conical pipe (35), the discharge pipe (3) is fixedly connected to the inner wall of the second conical pipe (36), and the annular channel (14) is provided with a collection trough (24) at one end near the discharge port (23).

9. The detection device for iron(III) oxide according to claim 1, characterized in that: An extension rod (9) is fixedly connected to the bottom end of the output shaft (17), and a cam plate (11) is fixedly connected to the bottom end of the extension rod (9).

10. The detection device for iron(III) oxide according to claim 9, characterized in that: One end of each of the multiple diversion pipes (27) away from the feed pipe (12) is slidably connected to a retraction rod (31). A spring (34) is sleeved on the rod body of the retraction rod (31). The cleaning slant block (32) is fixedly connected to one end of the retraction rod (31) near the feed pipe (12). A receiving chamber (33) is formed between the cleaning slant block (32) and the pipe wall of the diversion pipe (27). The spring (34) is located in the receiving chamber (33). The two ends of the spring (34) are fixedly connected to the cleaning slant block (32) and the pipe wall of the diversion pipe (27), respectively. A side plate (30) is fixedly connected to one end of the retraction rod (31) away from the feed pipe (12). The discharge ends of the multiple diversion pipes (27) are connected to a common collecting pipe (28).

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