Controlled-release fertilizer coating detection device and experiment table

Abstract

The utility model relates to the technical field of chemical equipment, in particular to a controlled-release fertilizer coating detection device and an experiment table, the controlled-release fertilizer coating detection device comprises a reaction tank and a dissolving barrel, the upper end of the reaction tank is provided with a feed pipe, and the lower end of the reaction tank is provided with a drain pipe; controlled-release fertilizer particles are fed into the containing cavity through the feeding pipe and enter the dissolving barrel through the exchange holes, a water inlet pipe is arranged on the dissolving barrel, and distilled water or other experimental solutions can be injected into the dissolving barrel through the water inlet pipe. An experimental solution is filtered by the first filter plug and then enters the second chamber to be in full contact with the controlled-release fertilizer particles, then the controlled-release fertilizer particles are gradually dissolved to obtain a dissolved solution, the dissolved solution is collected by the second filter plug, and the release rate of the controlled-release fertilizer can be obtained by regularly detecting the components of the dissolved solution. Therefore, the thickness and the integrity degree of the coating of the controlled-release fertilizer can be calculated.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a detection device and a test bench for controlled-release fertilizer coatings. Background Art

[0002] Controlled-release fertilizer is an innovative agricultural technology product. It mainly controls the release rate and release time of nutrients through coating technology, so that the nutrients in controlled-release fertilizer can be released slowly and persistently in the soil, thereby providing a stable source of nutrition for crops. Ensure that crops obtain sufficient nutrients during the critical growth stage. Compared with traditional fertilizers, controlled-release fertilizers can not only significantly improve fertilizer utilization, reduce nutrient loss and waste, but also effectively improve the soil environment and reduce agricultural non-point source pollution. At the same time, controlled-release fertilizers can also promote crop growth, increase yield and quality, and bring considerable economic and ecological benefits to agricultural production. Therefore, as an environmentally friendly, efficient and sustainable new fertilizer, controlled-release fertilizers are gradually becoming an important support for the development of modern agriculture.

[0003] The release rate of controlled-release fertilizer is one of the most important indicators of controlled-release fertilizer. In the existing test method, the controlled-release fertilizer particles are usually placed in a mesh bag, and then buried in the soil for a period of time, and the residual nutrients in the mesh bag are detected to judge the release rate of the controlled-release fertilizer. Not only is the test cycle long, but the test results are not accurate enough. Therefore, it is necessary to propose an experimental device that can accurately test the release rate of controlled-release fertilizer. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, in a first aspect, the utility model provides a detection device for controlled-release fertilizer coating, which can test the release rate of controlled-release fertilizer, shorten the detection cycle, and improve the detection accuracy.

[0005] In the second aspect, the utility model provides a test bench equipped with the detection device of the first aspect, which improves the detection rate and the convenience of use, thereby improving the work efficiency.

[0006] A detection device for a controlled-release fertilizer coating according to an embodiment of the first aspect of the utility model comprises:

[0007] A reaction tank, wherein a feed pipe is disposed at the upper end of the reaction tank and a drain pipe is disposed at the lower end; a receiving cavity is disposed in the reaction tank, and the feed pipe and the drain pipe are respectively connected to the receiving cavity;

[0008] A dissolving cylinder, wherein the dissolving cylinder is arranged in the accommodating cavity; a first filter plug and a second filter plug are arranged in the dissolving cylinder, the first filter plug divides the dissolving cylinder into a first chamber and a second chamber; the second filter plug is arranged at the lower end of the second chamber; the dissolving cylinder is provided with a plurality of exchange holes on the side wall of the second chamber; the dissolving cylinder is provided with a water inlet pipe on the side wall of the first chamber, one end of the water inlet pipe passes through the side wall of the reaction tank and is connected with the water supply component.

[0009] According to some embodiments of the utility model, a speed regulating valve is provided on the water inlet pipe.

[0010] According to some embodiments of the utility model, the lower end of the reaction tank is a conical structure, and the lower end of the feed pipe is arranged at the upper end of the conical structure; the exchange hole is located at the lower end of the conical structure.

[0011] According to some embodiments of the present invention, a feed hopper is provided at the upper end of the feed pipe.

[0012] According to some embodiments of the utility model, the detection device of the controlled-release fertilizer coating is provided with a stirring mechanism, and the stirring mechanism includes a motor, a fixed base, a stirring shaft and a stirring blade. The fixed base is fixedly connected to the upper end of the reaction tank, the motor is fixedly arranged on the fixed base, the output end of the motor is rotatably connected to the stirring shaft, the lower end of the stirring shaft passes through the fixed base and is inserted into the first chamber, and the stirring blade is fixedly connected to the stirring shaft.

[0013] According to some embodiments of the utility model, the detection device for the controlled-release fertilizer coating is provided with a frame, and the frame includes a base plate, a support rod, a first fastener and a second fastener, the lower end of the support rod is fixedly connected to the base plate; one end of the first fastener and the support rod can be adjusted and connected in a vertical direction, and the other end of the first fastener is connected to the upper end of the reaction tank; one end of the second fastener and the support rod can be adjusted and connected in a vertical direction, and the other end of the second fastener is connected to the lower end of the reaction tank.

[0014] According to some embodiments of the utility model, the detection device of the controlled-release fertilizer coating is provided with a collecting device, and the collecting device includes a turntable and N beakers; the turntable is provided with N placement slots, and the beakers are arranged in the placement slots, wherein N≥2.

[0015] According to some embodiments of the present utility model, an operating rod is provided at the rotation center of the turntable, and the operating rod is used to control the rotation of the turntable.

[0016] According to the second aspect of the utility model, a test bench comprises the detection device for the controlled-release fertilizer coating as described in the first aspect, a loading platform and a storage rack, wherein the detection devices for the controlled-release fertilizer coating are provided with M pieces, and the loading platform is provided with a rotating groove and a fixed groove; the turntable is rotatably arranged in the rotating groove, and the substrate is arranged in the fixed groove; the storage rack is located at one end of the loading platform and is provided with a plurality of storage grooves, M≥1.

[0017] According to some embodiments of the utility model, M positioning claws are rotatably arranged on the loading platform, each of the turntables is provided with a positioning slot corresponding to each placement slot, the positioning claws are engaged with the positioning slots, and M≥2.

[0018] A detection device and a test bench for a controlled-release fertilizer coating according to an embodiment of the utility model have at least the following beneficial effects:

[0019] According to the scheme of the utility model, the detection device of the controlled-release fertilizer coating includes a reaction tank and a dissolving cylinder, wherein the upper end of the reaction tank is provided with a feed pipe and the lower end is provided with a drain pipe; the controlled-release fertilizer particles are put into the containing cavity through the feed pipe and enter the dissolving cylinder through the exchange hole; the dissolving cylinder is provided with a water inlet pipe, through which distilled water or other experimental solutions can be injected into the dissolving cylinder; the experimental solution is filtered through the first filter plug and enters the second chamber to fully contact with the controlled-release fertilizer particles, and then gradually dissolves the controlled-release fertilizer particles to obtain a dissolved solution, which is collected through the second filter plug, and the release rate of the controlled-release fertilizer can be obtained by regularly detecting the components of the dissolved solution. Thus, the thickness and integrity of the controlled-release fertilizer coating can be calculated.

[0020] According to the scheme of the utility model, the experimental platform includes a detection device for controlled-release fertilizer coating, a loading platform and a storage rack. At least one detection device for controlled-release fertilizer coating is provided on the loading platform for detecting the controlled-release fertilizer particles to be detected. Another detection device for controlled-release fertilizer coating can also be provided for placing comparative examples. Through the design of this structure, the detection error can be reduced and the detection accuracy can be improved. In addition, a storage rack is also provided on one side of the loading platform for placing an idle beaker or a beaker containing a dissolving solution. Through the design of this structure, the industrial practicability of the device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural schematic diagram of the utility model;

[0022] Figure 2 A schematic cross-sectional view of the detection device for the controlled-release fertilizer coating of the utility model;

[0023] Figure 3 For the utility model Figure 2 A schematic diagram of a structure at A;

[0024] Figure 4 It is a structural schematic diagram of the collecting device of the utility model.

[0025] In the figure:

[0026] 100-reaction tank, 101-accommodation chamber, 110-feeding pipe, 120-drain pipe, 130-feeding hopper;

[0027] 200-dissolving cylinder, 201-first chamber, 202-second chamber, 203-exchange hole, 210-first filter plug, 220-second filter plug, 230-water inlet pipe, 231-speed regulating valve;

[0028] 300-stirring mechanism, 310-motor, 320-fixed base, 330-stirring shaft, 340-stirring blade;

[0029] 400-frame, 410-base plate, 420-support rod, 430-first fastener, 440-second fastener;

[0030] 500 - collecting device, 510 - turntable, 511 - placing slot, 520 - beaker, 530 - operating rod, 540 - positioning slot;

[0031] 600-carrying platform, 610-storage rack, 611-storage slot, 620-positioning claw. DETAILED DESCRIPTION

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

[0033] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

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

[0036] Reference Figure 1 As shown in the figure, the utility model discloses a detection device for controlled-release fertilizer coating, which includes a reaction tank 100 and a dissolving cylinder 200, wherein the upper end of the reaction tank 100 is provided with a feed pipe 110, and the lower end is provided with a drain pipe 120; a receiving cavity 101 is provided in the reaction tank 100, and the feed pipe 110 and the drain pipe 120 are respectively connected to the receiving cavity 101; the dissolving cylinder 200 is provided in the receiving cavity 101; A filter plug 210 and a second filter plug 220, the first filter plug 210 divides the dissolving cylinder 200 into a first chamber 201 and a second chamber 202; the second filter plug 220 is arranged at the lower end of the second chamber 202; the dissolving cylinder 200 is provided with a plurality of exchange holes 203 on the side wall of the second chamber 202; the dissolving cylinder 200 is provided with a water inlet pipe 230 on the side wall of the first chamber 201, and one end of the water inlet pipe 230 passes through the side wall of the reaction tank 100 and is connected to the water supply component.

[0037] In this embodiment, the detection device of the controlled-release fertilizer coating includes a reaction tank 100 and a dissolving cylinder 200, wherein the reaction tank 100 is provided with a feed pipe 110 at the upper end and a drain pipe 120 at the lower end; the controlled-release fertilizer particles are put into the containing cavity 101 through the feed pipe 110, and enter the dissolving cylinder 200 through the exchange hole 203, and the dissolving cylinder 200 is provided with a water inlet pipe 230, and the water supply assembly is connected through the inlet pipe, so that the experimental solution can be injected into the first chamber 201 of the dissolving cylinder 200. In this embodiment, the experimental solution is distilled water, an acidic solution or an alkaline solution. It can be understood that the specific experimental solution used can be determined according to the components of the controlled-release fertilizer and the coating. After the experimental solution is prepared, the experimental solution is injected into the first chamber 201 of the dissolving cylinder 200 through the water supply assembly. In this embodiment, in order to accelerate the experimental process, the experimental solution can be heated so that the reaction is carried out at a certain temperature. In the present embodiment, the water supply assembly includes a water tank, a water pump and a thermal resistor, wherein the water tank is used to temporarily store the modulated experimental solution, the water pump is used to draw the experimental solution in the water tank into the dissolving cylinder 200, and the thermal resistor can be arranged in the water tank or on the water inlet pipe 230. Further, the experimental solution enters the second chamber 202 after being filtered through the first filter plug 210 to fully contact with the controlled-release fertilizer particles, and then gradually dissolves the controlled-release fertilizer particles to obtain a dissolved solution, which is collected by the second filter plug 220, and the release rate of the controlled-release fertilizer can be obtained by regularly detecting the composition of the dissolved solution. Thus, the thickness and integrity of the capsule of the controlled-release fertilizer can be calculated. In the present embodiment, the dissolving cylinder 200 is a structure made of glass material, which can place the dissolving cylinder 200 to be corroded, and at the same time, the reaction tank 100 can provide support and protection for the dissolving cylinder 200. The service life of the dissolving cylinder 200 is improved.

[0038] In some embodiments of the utility model, a speed regulating valve 231 is provided on the water inlet pipe 230. By providing the speed regulating valve 231, the speed at which the experimental solution enters the dissolution cylinder 200 can be adjusted, thereby realizing the switching and simulation of different experimental conditions. Specifically, the experimental conditions include drip irrigation conditions, flooding conditions, semi-immersion conditions, etc., and the water environment required for the growth of crops can be partially simulated by the regulating valve. Furthermore, when it is necessary to quickly obtain the integrity of the coating of the controlled-release fertilizer particles, full immersion can be directly used, and the experimental solution can be heated at the same time. In addition, a weak alkaline experimental solution or a weak acidic experimental solution can be selected for injection. Through the design of this structure, not only can various experimental environments be simulated, but also tests can be carried out quickly, shortening the experimental time and improving the experimental efficiency.

[0039] In some embodiments of the utility model, the lower end of the reaction tank 100 is a conical structure, and the lower end of the feed pipe 110 is arranged at the upper end of the conical structure; the exchange hole 203 is located at the lower end of the conical structure. In this embodiment, the upper end of the reaction tank 100 is provided with a feed pipe 110, and a dissolving cylinder 200 is arranged in the reaction tank 100, and an exchange hole 203 is opened on the side wall of the dissolving cylinder 200; in the reaction tank 100 with a conical structure, the controlled-release fertilizer particles can quickly pass through the exchange hole 203 through the conical structure, and then enter the second chamber 202, so as to avoid the controlled-release fertilizer shell being accumulated in the reaction tank 100 and not being able to fully contact the experimental solution.

[0040] In some embodiments of the present invention, a feed hopper 130 is provided at the upper end of the feed pipe 110. The feed hopper 130 is provided to facilitate the input of controlled-release fertilizer particles.

[0041] In some embodiments of the utility model, the detection device of the controlled release fertilizer coating is provided with a stirring mechanism 300, the stirring mechanism 300 includes a motor 310, a fixed base 320, a stirring shaft 330 and a stirring blade 340, the fixed base 320 is fixedly connected to the upper end of the reaction tank 100, the motor 310 is fixedly arranged on the fixed base 320, the output end of the motor 310 is rotatably connected to the stirring shaft 330, the lower end of the stirring shaft 330 is inserted into the first chamber 201 through the fixed base 320, and the stirring blade 340 is fixedly connected to the stirring shaft 330. In this embodiment, a first filter plug 210 and a second filter plug 220 are provided in the dissolving cylinder 200, the first filter plug 210 separates the dissolving cylinder 200 into a first chamber 201 and a second chamber 202, and the dissolving cylinder 200 is provided with a water inlet pipe 230 on the side wall of the first chamber 201, and one end of the water inlet pipe 230 passes through the side wall of the reaction tank 100 and communicates with the water supply assembly. In this embodiment, when a rapid detection experiment is required, a full immersion experiment is usually used. By setting a stirring mechanism 300 in the first chamber 201, the experimental solution can be promoted to pass through the first filter screen, and the experimental solution can be prevented from being unable to pass quickly due to the influence of water tension. In addition, the structure in which the stirring mechanism 300 is set in the first chamber 201 can prevent the stirring blade 340 from directly contacting the controlled-release fertilizer particles and prevent the stirring blade 340 from damaging the capsule. In addition, in this embodiment, when a full immersion experiment is used, the speed of the stirring blade 340 can be controlled by controlling the speed of the motor 310. When the speed of the stirring blade 340 reaches a certain value, it can disturb the liquid in the second chamber 202, so that some of the controlled-release fertilizer particles can be displaced or rolled, thereby making the immersion more sufficient.

[0042] In some embodiments of the utility model, the detection device of the controlled-release fertilizer coating is provided with a frame 400, the frame 400 includes a base plate 410, a support rod 420, a first fastener 430 and a second fastener 440, the lower end of the support rod 420 is fixedly connected to the base plate 410; one end of the first fastener 430 and the support rod 420 can be adjusted and connected in the vertical direction, and the other end of the first fastener 430 is connected to the upper end of the reaction tank 100; one end of the second fastener 440 and the support rod 420 can be adjusted and connected in the vertical direction, and the other end of the second fastener 440 is connected to the lower end of the reaction tank 100. Specifically, in this embodiment, the reaction tank 100 can be stably fixed by setting the first fastener 430 and the second fastener 440. The first fastener 430 and the second fastener 440 can move along the axis direction of the support rod 420. When in use, the most suitable clamping position of the reaction tank 100 can be achieved by adjusting the position of the first fastener 430 and the second fastener 440. Specifically, in this embodiment, the first fastener 430 and the second fastener 440 are both bolt clamps.

[0043] In some embodiments of the utility model, the detection device of the controlled-release fertilizer coating is provided with a collecting device 500, and the collecting device 500 includes a rotating disk 510 and N beakers 520; the rotating disk 510 is provided with N placement slots 511, and the beakers 520 are arranged in the placement slots 511, wherein N ≥ 2. In this embodiment, at least two beakers 520 are provided, and by providing two beakers 520, the dissolved liquid at the drain pipe 120 can be cyclically received, and by providing the rotating disk 510, it is convenient to quickly switch between the empty beaker 520 and the full beaker 520, and the design of this structure is simple in structure and convenient to use.

[0044] In some embodiments of the present invention, an operating rod 530 is provided at the rotation center of the turntable 510, and the operating rod 530 is used to control the rotation of the turntable 510. Through the design of this structure, the structure is simple and easy to use.

[0045] The utility model also discloses a test bench, including a detection device for controlled-release fertilizer coating, a loading platform 600 and a storage rack 610. The detection devices for controlled-release fertilizer coating are provided with M pieces, and the loading platform 600 is provided with a rotating groove and a fixed groove; the turntable 510 is rotatably provided in the rotating groove, and the substrate 410 is provided in the fixed groove; the storage rack 610 is located at one end of the loading platform 600 and is provided with a plurality of storage grooves 611, M≥1. Specifically, in the present embodiment, the test bench includes a detection device for controlled-release fertilizer coating, a loading platform 600 and a storage rack 610. At least one detection device for controlled-release fertilizer coating is provided on the loading platform 600 for detecting the controlled-release fertilizer particles to be detected, and another detection device for controlled-release fertilizer coating can also be provided for placing comparative examples. Through the design of the present structure, the detection error can be reduced and the detection accuracy can be improved; in addition, a storage rack 610 is provided on one side of the loading platform 600 for placing an idle beaker 520 or a beaker 520 filled with a dissolving solution. Through the design of this structure, the industrial applicability of this device can be improved.

[0046] In some embodiments of the utility model, M positioning claws 620 are rotatably provided on the stage 600, and each turntable 510 is provided with a positioning slot 540 corresponding to each placement slot 511, and the positioning claws 620 and the positioning slots 540 are engaged. In this embodiment, by providing the positioning claws 620 and the positioning slots 540, it is possible to prevent the turntable 510 from rotating when receiving the dissolved liquid.

[0047] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A detection device for controlled-release fertilizer coating, characterized in that: include: A reaction tank (100), wherein a feed pipe (110) is disposed at the upper end of the reaction tank (100), and a drain pipe (120) is disposed at the lower end; a receiving cavity (101) is disposed inside the reaction tank (100), and the feed pipe (110) and the drain pipe (120) are respectively connected to the receiving cavity (101); A dissolving cylinder (200), wherein the dissolving cylinder (200) is arranged in the accommodating cavity (101); a first filter plug (210) and a second filter plug (220) are arranged in the dissolving cylinder (200), wherein the first filter plug (210) divides the dissolving cylinder (200) into a first chamber (201) and a second chamber (202); the second filter plug (220) is arranged at the lower end of the second chamber (202); the dissolving cylinder (200) is provided with a plurality of exchange holes (203) on the side wall of the second chamber (202); the dissolving cylinder (200) is provided with a water inlet pipe (230) on the side wall of the first chamber (201), wherein one end of the water inlet pipe (230) passes through the side wall of the reaction tank (100) and is connected to a water supply component.

2. The detection device for controlled-release fertilizer coating according to claim 1, characterized in that: The water inlet pipe (230) is provided with a speed regulating valve (231).

3. The detection device for the controlled-release fertilizer coating according to claim 2, characterized in that: The lower end of the reaction tank (100) is a conical structure, and the lower end of the feed pipe (110) is arranged at the upper end of the conical structure; the exchange hole (203) is located at the lower end of the conical structure.

4. The detection device for controlled-release fertilizer coating according to claim 1, characterized in that: A feeding hopper (130) is provided at the upper end of the feeding pipe (110).

5. The detection device for the controlled-release fertilizer coating according to any one of claims 1 to 4, characterized in that: The detection device for the controlled-release fertilizer coating is provided with a stirring mechanism (300), the stirring mechanism (300) comprising a motor (310), a fixed base (320), a stirring shaft (330) and a stirring blade (340), the fixed base (320) and the upper end of the reaction tank (100) are fixedly connected, the motor (310) is fixedly arranged on the fixed base (320), the output end of the motor (310) and the stirring shaft (330) are rotatably connected, the lower end of the stirring shaft (330) passes through the fixed base (320) and is inserted into the first chamber (201), and the stirring blade (340) and the stirring shaft (330) are fixedly connected.

6. The detection device for controlled-release fertilizer coating according to claim 5, characterized in that: The detection device for the controlled-release fertilizer coating is provided with a frame (400), and the frame (400) includes a base plate (410), a support rod (420), a first fastener (430) and a second fastener (440), wherein the lower end of the support rod (420) is fixedly connected to the base plate (410); one end of the first fastener (430) and the support rod (420) are adjustable in a vertical direction, and the other end of the first fastener (430) is connected to the upper end of the reaction tank (100); one end of the second fastener (440) and the support rod (420) are adjustable in a vertical direction, and the other end of the second fastener (440) is connected to the lower end of the reaction tank (100).

7. The detection device for controlled-release fertilizer coating according to claim 6, characterized in that: The detection device for the controlled-release fertilizer coating is provided with a collecting device (500), and the collecting device (500) comprises a rotating disk (510) and N beakers (520); the rotating disk (510) is provided with N placement slots (511), and the beakers (520) are arranged in the placement slots (511), wherein N≥2.

8. The detection device for controlled-release fertilizer coating according to claim 7, characterized in that: An operating rod (530) is provided at the rotation center of the turntable (510), and the operating rod (530) is used to control the rotation of the turntable (510).

9. A test bench, characterized in that: It comprises a detection device for a controlled-release fertilizer coating as claimed in claim 8, a loading platform (600) and a storage rack (610), wherein the detection device for the controlled-release fertilizer coating is provided with M pieces, and the loading platform (600) is provided with a rotating groove and a fixed groove; the turntable (510) is rotatably arranged in the rotating groove, and the base plate (410) is arranged in the fixed groove; the storage rack (610) is located at one end of the loading platform (600) and is provided with a plurality of storage grooves (611), and M≥1.

10. The test bench according to claim 9, characterized in that: M positioning claws (620) are rotatably arranged on the loading platform (600), and each of the rotating disks (510) is provided with a positioning slot (540) corresponding to each placement slot (511), and the positioning claws (620) are engaged with the positioning slots (540).

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