Multi-channel fertilizer heavy metal ion rapid detection device

Abstract

This invention relates to the field of heavy metal ion detection technology and discloses a multi-channel rapid detection device for heavy metal ions in fertilizers. A sealing cover is detachably installed on the top of the processing tank via bolts. A screening drum is rotatably installed inside the processing tank. A fixed pipe is rotatably installed on the middle of the side of the processing tank via a bearing. A feed pipe is fixedly installed through the middle of the other side of the processing tank, and its side is rotatably installed inside the side of the screening drum via a bearing. This invention can automatically disperse aggregated fertilizer samples. Some fertilizer samples with strong adsorption can contact the oppositely rotating connecting arc plate and the abutment rod, allowing the abutment rod to collide with the rolling fertilizer sample and further disperse it. This improves the dispersion and separation quality and efficiency of the fertilizer sample, ensuring that the accuracy of subsequent heavy metal ion detection is not affected by excessively large particle diameters.

Description

Technical Field

[0001] This invention relates to the field of heavy metal ion detection technology, and in particular to a multi-channel rapid detection device for heavy metal ions in fertilizers. Background Technology

[0002] Currently, fertilizers are made through chemical synthesis or natural mineral processing to supplement soil nutrients and promote crop growth. After the fertilizer is produced, it is necessary to test the heavy metal ions contained in the fertilizer to avoid excessive heavy metal ion content, which could lead to soil pollution, reduce soil fertility, and affect the sustainable development of agriculture.

[0003] However, when detecting heavy metal ions inside prepared fertilizers, the fertilizer tends to clump together due to moisture absorption and external pressure during storage. To ensure detection efficiency, operators often manually break the clumps down to a suitable particle size before testing. This pretreatment method is not only cumbersome but also prone to insufficient particle size, affecting subsequent detection efficiency. Therefore, we propose a multi-channel rapid detection device for heavy metal ions in fertilizers. Utility Model Content

[0004] The main purpose of this invention is to provide a multi-channel rapid detection device for heavy metal ions in fertilizers, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multi-channel rapid detection device for heavy metal ions in fertilizers includes a processing tank and a mass spectrometer body. A sealing cover is detachably mounted on the top of the processing tank via bolts. A screening drum is rotatably mounted inside the processing tank. A fixed pipe is rotatably mounted on the middle of the side of the processing tank via a bearing. A feed pipe is fixedly mounted through the middle of the other side of the processing tank, and its side is rotatably mounted inside the screening drum via a bearing. A fixed cover is detachably mounted on the top of the screening drum via bolts. A guide plate is fixedly mounted at an angle on the bottom of the inner side of the processing tank. Several sets of connecting pipes are fixedly connected to the bottom of the side of the processing tank. A collecting pipe is fixedly connected to the top of the connecting pipe. A conveying pipe is fixedly connected to the middle of the collecting pipe. A quantitative valve is fixedly mounted on the outside of the conveying pipe. The top of the conveying pipe is fixedly connected to the feed inlet of the mass spectrometer body.

[0007] A fixed frame is fixedly installed on the middle of the outer side of the processing tank. A drive mechanism is provided inside the fixed frame. A dispersing mechanism is provided inside the screening drum. The dispersing mechanism and the drive mechanism are connected in a transmission manner.

[0008] A synchronous rotation mechanism is provided on the outside of the screening drum, and the synchronous rotation mechanism and the drive mechanism are connected in transmission.

[0009] As an optional solution to the technical solution of this application, the dispersing mechanism includes an abutting rod. A rotating rod is rotatably mounted inside the screening drum via a bearing, and the rotating rod extends from inside the fixed tube to inside the fixed frame. A connecting sleeve is fixedly sleeved on the outside of the rotating rod, and there are several sets of connecting sleeves. A fixed rod is vertically fixedly mounted on the bottom of the outside of the connecting sleeve. A connecting arc plate is fixedly mounted between the bottoms of the fixed rods. An abutting rod is fixedly mounted on both ends of the outside of each connecting arc plate, and there are several sets of abutting rods.

[0010] As an optional solution to the technical solution of this application, the driving mechanism includes a follower gear and a transmission gear. The transmission gear is fixedly sleeved on the outer side of the rotating rod. A connecting rod is rotatably installed on the bottom inner side of the fixed frame through a bearing, and the side of the connecting rod extends rotatably into the processing tank through a bearing. The follower gear is fixedly sleeved on the outer side of the connecting rod, and the follower gear and the transmission gear mesh on their outer sides. A rotating motor is fixedly installed on the top outer side of the fixed frame, and the side of the rotating motor's transmission shaft is fixedly connected to the side of the rotating rod through a coupling.

[0011] By adopting the above technical solution, the meshing transmission of the transmission gear and the follower gear enables the rotating motor to provide a driving force in the opposite direction to the rotation of the rotating rod and the screening drum during operation.

[0012] As an optional solution to the technical solution of this application, the synchronous rotation mechanism includes pulleys and a transmission belt. The top side of the connecting rod and the outside of the fixed tube are both fixedly sleeved with pulleys, and a transmission belt is sleeved between the outer sides of the two sets of pulleys.

[0013] By adopting the above technical solution, the rotational power of the connecting rod can be transmitted and connected to the fixed pipe and the screening drum through the transmission connection of the pulley and the transmission belt.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The multi-channel fertilizer heavy metal ion rapid detection device of this application, by setting a rotatable rotating rod inside the screening drum, and through the meshing transmission action of the transmission gear and the follower gear, allows the servo motor to provide synchronous and opposite driving force to the rotating rod and the connecting rod when running. Subsequently, under the transmission action of the pulley and the transmission belt, the rotational force of the connecting rod can be transmitted to the fixed tube, so that the fixed tube can drive the screening drum to rotate, thereby driving the screening drum and the rotating rod inside it to rotate synchronously and relative to each other. As a result, the fertilizer sample rolls synchronously inside the screening drum with the rotation of the screening drum. The agglomerated fertilizer sample can be automatically dispersed, while some fertilizer samples with strong adsorption force can come into contact with the oppositely rotating connecting arc plate and the abutment rod. This allows the abutment rod to collide with the rolling fertilizer sample and further disperse it, improving the dispersion and separation quality and efficiency of the fertilizer sample, and ensuring that the fertilizer sample will not affect the accuracy of subsequent heavy metal ion detection due to excessively large particle diameter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of the multi-channel fertilizer heavy metal ion rapid detection device of this utility model;

[0017] Figure 2 This is a side view sectional view of the pulley and transmission belt of the multi-channel fertilizer heavy metal ion rapid detection device of this utility model;

[0018] Figure 3 This is a top view cross-sectional diagram of the rotating rod of the multi-channel fertilizer heavy metal ion rapid detection device of this utility model;

[0019] Figure 4 This is a top-view cross-sectional structural diagram of the multi-channel fertilizer heavy metal ion rapid detection device of this utility model.

[0020] Reference numerals: 1. Processing tank; 11. Sealing cover; 12. Guide plate; 13. Fixed cover; 2. Fixed pipe; 21. Screening drum; 22. Feed pipe; 23. Fixed frame; 24. Rotating rod; 25. Transmission gear; 26. Connecting rod; 27. Follower gear; 28. Pulley; 29. ​​Transmission belt; 3. Connecting sleeve; 31. Fixed rod; 32. Connecting arc plate; 33. Abutting rod; 34. Rotating motor; 4. Connecting pipe; 41. Collecting pipe; 42. Conveying pipe; 43. Mass spectrometer body; 44. Quantitative valve. Detailed Implementation

[0021] like Figure 1-4As shown, this utility model provides a technical solution: a multi-channel fertilizer heavy metal ion rapid detection device. A sealing cover plate 11 is detachably installed on the top of the processing tank 1 via bolts. A screening drum 21 is rotatably installed inside the processing tank 1. A fixed pipe 2 is rotatably installed on the middle of the side of the processing tank 1 via a bearing. A feed pipe 22 is fixedly installed through the middle of the other side of the processing tank 1, and the side of the feed pipe 22 is rotatably installed inside the side of the screening drum 21 via a bearing. A transmission gear is fixedly sleeved on the outside of the rotating rod 24. 25. A connecting rod 26 is rotatably mounted on the inner bottom of the fixed frame 23 via a bearing, and the side of the connecting rod 26 extends rotatably into the processing tank 1 via a bearing. A fixed cover plate 13 is detachably mounted on the top of the screening roller 21 via bolts. A follower gear 27 is fixedly sleeved on the outer side of the connecting rod 26, and the follower gear 27 meshes with the outer side of the transmission gear 25. A rotating motor 34 is fixedly mounted on the top outer side of the fixed frame 23, and the side of the transmission shaft of the rotating motor 34 is fixedly connected to the side of the rotating rod 24 via a coupling.

[0022] In this technical solution (through Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, pulleys 28 are fixedly sleeved on the top side of the connecting rod 26 and the outside of the fixed tube 2, and a transmission belt 29 is sleeved between the outer sides of the two sets of pulleys 28.

[0023] In this technical solution (through Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown), a rotating rod 24 is rotatably mounted inside the screening drum 21 via a bearing, and the rotating rod 24 extends from inside the fixed tube 2 to inside the fixed frame 23. A connecting sleeve 3 is fixedly sleeved on the outside of the rotating rod 24, and there are several sets of connecting sleeves 3. A fixed rod 31 is vertically fixedly mounted on the bottom of the outside of the connecting sleeve 3. A connecting arc plate 32 is fixedly mounted between the bottoms of the fixed rods 31. Abutting rods 33 are fixedly mounted on both ends of the outside of each connecting arc plate 32, and there are several sets of abutting rods 33. The top of the abutting rod 33 is conical, so that when it rotates inside the screening drum 21, it can abut against the agglomerated fertilizer sample and disperse it.

[0024] In this technical solution (through Figure 1 , Figure 2 , Figure 3 and Figure 4As shown), a guide plate 12 is fixedly installed at an incline on the bottom of the inner side of the processing tank 1. A connecting pipe 4 is fixedly connected to the bottom side of the processing tank 1, and there are several sets of connecting pipes 4. A collecting pipe 41 is fixedly connected to the top side of the connecting pipe 4. A conveying pipe 42 is fixedly connected to the middle side of the collecting pipe 41. A metering valve 44 is fixedly installed on the outside of the conveying pipe 42. The top side of the conveying pipe 42 is fixedly connected to the feed port of the mass spectrometer body 43.

[0025] In some technical solutions (through Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, after the separated and purified fertilizer is transported to the mass spectrometer body 43, the fertilizer sample on the fixed platform is converted into an aerosol for detection and transport under the action of the nebulizer inside the mass spectrometer. Subsequently, under the action of the plasma source module inside the mass spectrometer body 43, the fertilizer aerosol sample is ionized to generate high-temperature plasma, thereby ionizing the internal elements. Then, combined with the operation of the ion lens group and ion deflector, neutral particles and photons are removed, improving the signal-to-noise ratio. The mass analyzer operates synchronously, and after applying an alternating electric field to screen specific ions, the screened ions collide with the detector surface to generate an electron multiplication signal, and the signal intensity is proportional to the ion concentration. Under the action of the control module, the data results are processed and displayed to an external terminal for the detection of heavy metal ions in the fertilizer sample.

[0026] During operation, the fertilizer sample to be processed is fed into the screening drum 21 through the feed pipe 22. Then, the servo motor is turned on via an external control switch, providing driving force to the rotating rod 24. As the rotating rod 24 rotates, it drives the transmission gear 25 on its outer side to rotate inside the fixed frame 23, simultaneously causing the connecting sleeve 3 to rotate synchronously inside the screening drum 21. Combined with the meshing transmission of the transmission gear 25 and the follower gear 27, this drives the connecting rod 26 to rotate, which in turn drives the pulley 28 on the side of the connecting rod 26 to rotate. Combined with the transmission belt 29, this drives the pulley 28 connected to the fixed pipe 2 to rotate synchronously, causing the screening drum 21 to rotate synchronously in the opposite direction to the rotation of the rotating rod 24. This allows fertilizer samples to be rotated synchronously inside the screening drum 21. As the screening drum 21 rotates, the fertilizer samples that have agglomerated can be automatically dispersed. At the same time, some fertilizer samples with strong adsorption can come into contact with the connecting arc plate 32 and the abutment rod 33, which rotate in the opposite direction. This allows the abutment rod 33 to collide with the rolling fertilizer samples and further disperse them, improving the dispersion and separation quality and efficiency of the fertilizer samples. Subsequently, fertilizer samples with qualified particle diameters can fall through the screening mesh frame onto the surface of the guide plate 12. After being connected to the connecting pipe 4, the dispersed fertilizer samples are transported into the collection pipe 41. Then, the quantitative valve 44 is opened to transport the concentrated sample material into the mass spectrometer body 43. Combined with the structural function of the mass spectrometer body 43, the heavy metal ions in the fertilizer samples are detected and analyzed.

Claims

1. A multi-channel rapid detection device for heavy metal ions in fertilizers, comprising a processing tank (1) and a mass spectrometer body (43), characterized in that: The top of the processing tank (1) is detachably fitted with a sealing cover plate (11) by bolts. A screening drum (21) is rotatably installed inside the processing tank (1). A fixed pipe (2) is rotatably installed on the middle side of the processing tank (1) by bearings. The top of the side of the fixed pipe (2) is fixedly connected to the outside of the screening drum (21). A feed pipe (22) is fixedly installed through the middle side of the other side of the processing tank (1). The side of the feed pipe (22) is rotatably installed inside the side of the screening drum (21) by bearings. A fixed frame (23) is fixedly installed in the middle of the outer side of the processing tank (1). A drive mechanism is provided inside the fixed frame (23). A dispersing mechanism is provided inside the screening drum (21). The dispersing mechanism and the drive mechanism are connected in a transmission. The screening drum (21) is provided with a synchronous rotation mechanism on its outer side, and the synchronous rotation mechanism and the drive mechanism are connected in transmission.

2. The multi-channel fertilizer heavy metal ion rapid detection device according to claim 1, characterized in that: A guide plate (12) is fixedly installed at the bottom of the inner side of the processing tank (1). A connecting pipe (4) is fixedly connected to the bottom of the side of the processing tank (1), and there are several sets of connecting pipes (4). A collecting pipe (41) is fixedly connected to the top of the side of the connecting pipe (4). A conveying pipe (42) is fixedly connected to the middle of the side of the collecting pipe (41). A metering valve (44) is fixedly installed on the outside of the conveying pipe (42). The top of the side of the conveying pipe (42) is fixedly connected to the feed port of the mass spectrometer body (43).

3. The multi-channel fertilizer heavy metal ion rapid detection device according to claim 1, characterized in that: The dispersing mechanism includes an abutting rod (33). A rotating rod (24) is rotatably mounted inside the screening drum (21) through a bearing. The rotating rod (24) extends from inside the fixed tube (2) to inside the fixed frame (23). A connecting sleeve (3) is fixedly sleeved on the outside of the rotating rod (24). There are several sets of connecting sleeves (3). A fixed rod (31) is vertically fixedly mounted on the bottom of the outside of the connecting sleeve (3). A connecting arc plate (32) is fixedly mounted between the bottoms of the fixed rods (31). An abutting rod (33) is fixedly mounted on both ends of the outside of each connecting arc plate (32). There are several sets of abutting rods (33).

4. The multi-channel fertilizer heavy metal ion rapid detection device according to claim 3, characterized in that: The drive mechanism includes a follower gear (27) and a transmission gear (25). The transmission gear (25) is fixedly sleeved on the outside of the rotating rod (24). A connecting rod (26) is rotatably installed on the bottom inner side of the fixed frame (23) through a bearing. The side of the connecting rod (26) extends into the processing tank (1) through a bearing. The follower gear (27) is fixedly sleeved on the outside of the connecting rod (26). The follower gear (27) and the transmission gear (25) mesh on the outside. A rotating motor (34) is fixedly installed on the top outer side of the fixed frame (23). The side of the transmission shaft of the rotating motor (34) is fixedly connected to the side of the rotating rod (24) through a coupling.

5. The multi-channel fertilizer heavy metal ion rapid detection device according to claim 4, characterized in that: The synchronous rotation mechanism includes pulleys (28) and transmission belts (29). The top side of the connecting rod (26) and the outside of the fixed tube (2) are both fixedly fitted with pulleys (28), and transmission belts (29) are fitted between the two sets of pulleys (28).

6. The multi-channel fertilizer heavy metal ion rapid detection device according to claim 1, characterized in that: The top of the screening drum (21) is detachably fitted with a fixed cover plate (13) by bolts.

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