Fertilizer detection device and detection method thereof

Abstract

The invention belongs to the technical field of fertilizer detection, and particularly relates to a fertilizer detection device and a detection method.When the device is used, a fertilizer sample is put into a grinding barrel, a first motor drives a grinding block to rotate in a grinding groove, fertilizer is ground into powder, meanwhile, a set amount of water is introduced into the grinding barrel through a liquid supply assembly, and the fertilizer sample is ground into powder; the bottom end of the main shaft is fixedly connected with a first stirring rod, the solution is stirred, fertilizer dissolution is accelerated, meanwhile, precipitation is avoided, the fertilizer solution is extracted into the liquid storage assembly through the extraction assembly, and the solution is detected through a detection instrument. When the device is used for detecting the fertilizer, manual participation is reduced, the labor intensity of detection personnel is reduced, the detection efficiency is improved, meanwhile, in the detection process, the fertilizer and water are both located in the outer box body, and the situation that the solution splashes and pollutes the surrounding environment is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fertilizer detection, and particularly relates to a fertilizer detection device and a detection method thereof. BACKGROUND

[0002] Fertilizer refers to a substance applied to the soil or sprayed on the upper part of crops, which can directly or indirectly supply nutrients to crops, increase crop yield, improve product quality, or improve soil properties and fertility. Nowadays, fertilizer generally refers to chemical fertilizer.

[0003] The purpose of fertilizer detection is to ensure that the fertilizer product meets the national standards and industry standards, and to ensure that the effective ingredient content, physicochemical properties, heavy metal content, and microbial activity meet the requirements, so as to ensure the safety and efficiency of agricultural production.

[0004] In the process of fertilizer detection, especially the detection of solid fertilizer, the fertilizer obtained by sampling is usually crushed and dissolved by manual operation, and then a certain amount of solution is extracted for detection. The labor intensity of the detection personnel is large, and the efficiency is low.

[0005] Therefore, a fertilizer detection device and a detection method thereof are provided. SUMMARY

[0006] The purpose of the present application is to provide a fertilizer detection device and a detection method thereof to solve the above problems.

[0007] To achieve the above purpose, the present application provides the following scheme:

[0008] A fertilizer detection device comprises an outer box body, a detection instrument, a grinding assembly, and a liquid storage assembly are arranged in the outer box body, the liquid storage assembly and the grinding assembly are communicated through an extraction assembly, the liquid storage assembly and the grinding assembly are communicated with a liquid supply assembly, and a cleaning mechanism is arranged in the liquid storage assembly.

[0009] The grinding assembly comprises a grinding barrel, a main shaft is coaxially connected in the grinding barrel, the top end of the main shaft penetrates out of the outer box body and is coaxially fixed with the output shaft of a first motor, the first motor is fixed on the outer box body, a grinding block is coaxially fixed on the outer side wall of the main shaft, the grinding block is arranged in an inverted frustum shape, a grinding base is coaxially fixed on the inner side wall of the grinding barrel, a grinding groove is formed on the top surface of the grinding base, the grinding groove is matched with the grinding block, a gap is left between the grinding groove and the grinding block, the gap between the grinding groove and the grinding block is gradually increased from the axis to the outer edge, the main shaft is coaxially arranged with the grinding groove and penetrates out of the bottom end of the grinding base, a spacing is left between the main shaft and the grinding base, and a first stirring rod is fixed to the bottom end of the main shaft.

[0010] Preferably, a spraying assembly is arranged in the grinding barrel, the spraying assembly comprises an annular pipe, the annular pipe is communicated with the liquid supply assembly, the annular pipe is arranged above the grinding base, the annular pipe is coaxially arranged with the grinding barrel, a plurality of fixed rods are fixedly connected to the outer side wall of the annular pipe at equal intervals in the circumferential direction, the fixed rods are fixedly connected to the inner side wall of the grinding barrel, a plurality of spraying heads are fixedly connected and communicated to the bottom end of the annular pipe, and outlet ends of the spraying heads are directed to the inner side wall of the grinding barrel.

[0011] Preferably, the bottom end of the grinding barrel is arranged in an inverted conical shape, the bottom end of the grinding barrel is communicated with a discharge pipe, the discharge pipe penetrates through the outer box body, and an electromagnetic valve is arranged on the discharge pipe.

[0012] Preferably, the liquid storage assembly comprises a liquid storage barrel fixedly connected to the outer box body, a second motor is fixedly connected to the bottom end of the liquid storage barrel, an output shaft of the second motor penetrates into the liquid storage barrel and is coaxially fixedly connected with a stirring shaft, the stirring shaft is coaxially rotationally connected in the liquid storage barrel, a second stirring rod is fixedly connected to the outer side wall of the stirring shaft, the detection instrument is fixedly connected to the outer side wall of the liquid storage barrel, the detection instrument is located at the lower part of the liquid storage barrel, and a detection end of the detection instrument extends into the liquid storage barrel.

[0013] Preferably, the extraction assembly comprises a suction pipe, one end of the suction pipe extends into the grinding barrel and is close to the bottom end of the grinding barrel, a suction pump is arranged on the suction pipe, the other end of the suction pipe penetrates into the liquid storage barrel, a first flowmeter is arranged at the end of the suction pipe in the liquid storage barrel, and the first flowmeter is embedded in the inner side wall of the liquid storage barrel.

[0014] Preferably, the cleaning mechanism comprises a hollow shaft motor fixedly connected to the top end of the liquid storage barrel, the hollow shaft motor is coaxially arranged with the liquid storage barrel, an output shaft of the hollow shaft motor penetrates into the liquid storage barrel and is fixedly connected with one end of a U-shaped piece, the U-shaped piece is matched with the inner cavity of the liquid storage barrel, the other end of the U-shaped piece is fixedly connected with a rotating ring, the rotating ring is coaxially rotationally connected to the outer side wall of the stirring shaft, the outer side of the U-shaped piece is provided with brush hairs, and the brush hairs are in contact with the inner wall of the liquid storage barrel.

[0015] A channel is formed in the top end of the U-shaped piece, the channel is horizontally arranged, the channel penetrates through the side of the U-shaped piece close to the inner wall of the liquid storage barrel, the channel is communicated with the hollow shaft of the hollow shaft motor, and the hollow shaft of the hollow shaft motor is communicated with the liquid supply assembly.

[0016] Preferably, the inner side of the U-shaped piece is fixed with a plurality of protective shells, the plurality of protective shells are arranged at equal intervals along the length direction of the liquid storage barrel, a slide column is fixed in the protective shell, the slide column is perpendicular to the U-shaped piece, a spring is sleeved on the slide column, a support plate is slidably connected on the slide column, the spring is arranged between the support plate and the protective shell, the support plate does not come off the slide column, a slide rod is fixed on one side of the support plate, the slide rod penetrates through the U-shaped piece and is slidably connected with the U-shaped piece, the slide rod penetrates out of the U-shaped piece and is fixed with a mounting rod, and the bristles are fixed on the mounting rod.

[0017] Preferably, the liquid supply assembly comprises a water tank fixed at the top end of the outer box body, a first water pump and a second water pump are arranged in the water tank, the second water pump is communicated with the hollow shaft of the hollow shaft motor, the first water pump is communicated with the annular pipe, and a second flow meter is arranged between the first water pump and the annular pipe, and the second flow meter is close to the annular pipe.

[0018] Preferably, the top surface of the grinding block is arranged as an inclined surface, and the inclined surface is downwardly inclined at one side of the outer edge of the grinding block.

[0019] A fertilizer detection method based on the fertilizer detection device comprises the following steps:

[0020] A certain amount of fertilizer sample is placed in the grinding barrel, the fertilizer sample is ground into powder, a certain amount of distilled water is introduced into the grinding barrel, the fertilizer is melted, then the solution is transported to the liquid storage assembly through the extraction assembly, the solution in the liquid storage assembly is detected by the detection instrument, after the detection is completed, the solution in the liquid storage assembly and the grinding assembly is discharged and stored respectively, and the liquid storage assembly is cleaned by the cleaning mechanism.

[0021] Compared with the prior art, the fertilizer detection device has the following advantages and technical effects:

[0022] When the device is used, the fertilizer sample is placed in the grinding barrel, the first motor drives the grinding block to rotate in the grinding groove, the fertilizer is ground into powder, and a certain amount of water is introduced into the grinding barrel through the liquid supply assembly, so as to configure the solution to be detected, the bottom end of the main shaft is fixed with a first stirring rod, the solution is stirred, the dissolution of the fertilizer is accelerated, and precipitation is avoided, the fertilizer solution is extracted into the liquid storage assembly through the extraction assembly, and the solution is detected by the detection instrument.

[0023] When the device is used to detect the fertilizer, the participation of manual labor is reduced, the labor intensity of the detection personnel is reduced, and the detection efficiency is improved, and in the detection process, the fertilizer and water are located in the outer box body, so that the solution is prevented from splashing and polluting the surrounding environment. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0026] Figure 2 It is a schematic diagram of the overall structure of the present application. Figure 1

[0027] Figure 3 It is a schematic diagram of the internal structure of the liquid storage barrel in the present application.

[0028] Figure 4 It is a schematic diagram of the internal structure of the liquid storage barrel in the present application. Figure 3

[0029] In the figure, 1 is an outer box body; 2 is a feeding hopper; 3 is a first motor; 4 is a water tank; 5 is a first water pump; 6 is a second water pump; 7 is a grinding barrel; 8 is a grinding block; 9 is a grinding base; 10 is a main shaft; 11 is a first stirring rod; 12 is a discharging pipe; 13 is an electromagnetic valve; 14 is a suction pipe; 15 is a suction pump; 16 is a liquid storage barrel; 17 is a second motor; 18 is a detection instrument; 19 is a stirring shaft; 20 is a second stirring rod; 21 is a hollow shaft motor; 22 is a fixing rod; 23 is an annular pipe; 24 is a spraying head; 25 is a first flowmeter; 26 is a rotating ring; 27 is a U-shaped piece; 28 is a brush; 29 is a mounting rod; 30 is a sliding rod; 31 is a supporting plate; 32 is a protective shell; 33 is a sliding column; 34 is a channel; 35 is a second flowmeter. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative effort based on these embodiments also belong to the protection scope of the present application.

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] ​​In the related art, a liquid fertilizer detection device includes a liquid storage barrel, a detection device is arranged on one side of the liquid storage barrel, an extension liquid taking mechanism for taking liquid fertilizer into the liquid storage barrel is arranged on the other side of the liquid storage barrel, a liquid discharge pipe is arranged on one side of the bottom of the liquid storage barrel, and a switch valve is installed on the liquid discharge pipe; a stirring assembly for stirring the material in the liquid storage barrel is arranged in the liquid storage barrel; a cleaning mechanism is arranged at the top end of the liquid storage barrel, the cleaning mechanism includes a cleaning disc assembly arranged in the liquid storage barrel, and a driving assembly for driving the cleaning disc assembly to move up and down is arranged above the liquid storage barrel; a plurality of scraper assemblies are arranged on the cleaning disc assembly, and the plurality of scraper assemblies are arranged in a ring shape and at intervals along the outer surface of the cleaning disc assembly. The cleaning disc assembly includes a disc coaxially arranged in the liquid storage barrel, and cleaning brush groups are arranged on the outer surface of the disc and close to the top end and the bottom end of the disc; each cleaning brush group includes a plurality of cleaning brushes, and the plurality of cleaning brushes are arranged in a ring shape and at intervals along the outer surface of the disc. Further optimization: the driving assembly includes a support fixedly installed above the liquid storage barrel, a screw rod rotatably connected to the support and close to the middle of the support, a threaded plate threadedly connected to the screw rod, limit plates fixedly connected to the top surface of the threaded plate and slidably penetrating through the support and extending above the support, and transmission rods fixedly connected to the bottom surface of the threaded plate and the disc; a reversible motor for driving the screw rod to rotate in opposite directions is fixedly installed on the top surface of the support. Further optimization: the scraper assembly includes a positioning box fixedly connected to the outer surface of the disc, a pressing plate movably installed in the inner cavity of the positioning box, a pressing block fixedly connected to the side of the pressing plate away from the disc, and a scraper fixedly connected to the other end of the pressing block and in contact with the inner surface of the liquid storage barrel. Further optimization: straight rods are movably connected to the pressing plate and close to the two ends of the pressing plate, and one end of each straight rod is fixedly connected to the inner side wall of the positioning box; an elastic member is sleeved on the outer surface of the straight rod, and the two ends of the elastic member are fixedly connected to the pressing plate and the inner side wall of the positioning box. Further optimization: the extension liquid taking mechanism includes a liquid taking pump fixedly connected to the side of the liquid storage barrel, the liquid outlet of the liquid taking pump extends into the liquid storage barrel, a sleeve is fixedly connected to the liquid inlet of the liquid taking pump, a telescopic pipe is slidably and sealingly connected to the inside of the sleeve, and the bottom end of the telescopic pipe extends to the outside of the sleeve and is fixedly connected to a liquid taking port. Further optimization: at least one hydraulic rod is fixedly connected to the side of the sleeve, a stress plate is fixedly connected to the side of the telescopic pipe, and the stress plate is fixedly connected to the side of the telescopic pipe. Further optimization: the stirring assembly includes a driving motor fixedly installed on the bottom surface of the liquid storage barrel, an output shaft of the driving motor extends into the inner cavity of the liquid storage barrel and is fixedly connected to a stirring shaft, and a plurality of stirring rods are detachably installed on the outer surface of the stirring shaft. Further optimization: a plurality of clamping grooves are formed in the outer surface of the stirring shaft, a clamping block is fixedly connected to one end of each stirring rod close to the clamping groove, and the clamping block is clamped with the corresponding clamping groove.The application discloses a liquid fertilizer detection method based on the liquid fertilizer detection device, and comprises the following steps: step one, according to the required liquid taking depth, the hydraulic rod is extended and retracted to drive the telescopic pipe to move in the sleeve, after the adjustment is completed, the liquid taking opening is inserted into the liquid fertilizer, the liquid taking pump is started, the liquid taking opening draws the liquid fertilizer into the telescopic pipe and the sleeve, and the liquid taking pump guides the liquid fertilizer into the liquid storage barrel; step two, the driving motor is started to drive the stirring shaft to rotate, the stirring shaft drives the stirring rod to rotate for stirring the liquid fertilizer, and then the detection equipment is used to detect the liquid fertilizer; step three, after the detection is completed, the liquid fertilizer is discharged through the liquid discharge pipe, the cleaning liquid is injected into the liquid storage barrel, the forward and reverse motor is started to drive the screw rod to rotate, the screw rod drives the threaded plate and the disc to move up and down, the cleaning brush on the disc cleans the inside of the liquid storage barrel; step four, when the disc moves, the scraper is pressed to drive the pressing block to move, the pressing block drives the pressing plate to move, the pressing plate extrudes the elastic element to generate elastic force, the reaction force of the elastic element enables the scraper to always abut against the inner wall of the liquid storage barrel, and the up-and-down scraper scrapes the attachments in the liquid storage barrel, and the cleaning sewage is discharged from the liquid discharge pipe. The application has the following beneficial effects: 1. The forward and reverse motor drives the screw rod to rotate, the screw rod drives the threaded plate to move up and down, the threaded plate drives the cleaning disc assembly to move through the transmission rod, the cleaning brush on the cleaning disc assembly can clean the liquid storage barrel after the detection, the use is convenient, the inner wall of the liquid storage barrel can be completely and uniformly cleaned through the multiple annular and interval cleaning brushes, the detection accuracy is not affected by the residual liquid fertilizer in the liquid storage barrel, the detection result accuracy is improved, and the overall structure is simple and the cleaning operation is convenient. 2. When the cleaning disc assembly moves up and down, the scraper assembly also moves up and down, the scraper is tightly attached to the inner wall of the liquid storage barrel, the scraper is always pressed against the inner wall of the liquid storage barrel under the reaction force of the elastic element, so that the scraper can scrape the attachments on the inner wall of the liquid storage barrel, and the cleaning effect is further improved. 3. The hydraulic rod in the telescopic liquid taking mechanism can drive the telescopic pipe to move in the sleeve, thereby adjusting the overall length of the telescopic pipe and the sleeve, and the liquid taking depth of the liquid taking opening is adjusted, the application range and adaptability are further improved, the liquid taking pump generates suction force, the liquid fertilizer is sucked and conveyed into the liquid storage barrel through the cooperation of the liquid taking opening, the telescopic pipe and the sleeve, the sampling operation is realized, the overall structure is simple, the sampling operation is automated, the use is convenient, and the sampling difficulty is reduced.4. The technical scheme is adopted, the structure is reasonable, the liquid fertilizer can be sampled automatically through the telescopic liquid taking mechanism, the liquid fertilizer in the liquid storage barrel can be stirred through the stirring assembly, and the solid substances are prevented from depositing; the liquid fertilizer can be detected automatically through the detection equipment, the liquid storage barrel after detection is completed can be cleaned through the cleaning mechanism, the liquid fertilizer is prevented from remaining in the liquid storage barrel to affect the subsequent detection accuracy, the overall structure is simple, convenient to manufacture and produce, convenient to use, and the production and use cost can be reduced.

[0033] The utility model provides a kind of liquid fertilizer sampling detection device, including sampling cylinder, the inner wall of sampling cylinder is fixedly connected with two installation frames arranged in upper and lower, two installation frames are fixedly connected with the limiting rod being arranged along axis to opposite side, sampling cylinder is provided with stirring protection assembly, stirring protection assembly includes drive frame, fixed frame and drive motor, limiting rod passes through drive frame movably, drive frame is fixedly provided with convenient sampling assembly, the outer wall of sampling cylinder is provided with fixed placement assembly. Limiting rod is set to assist drive frame to move, so that drive frame can be stably lifted;Stirring protection assembly can automatically stir liquid fertilizer when sampling, while avoiding fertilizer sputtering, to meet the use demand;Convenient sampling assembly can be rotated to sample, and after sampling, it can assist staff to collect sampling bottle, increase the convenience of device use;Fixed placement assembly is used to fix the device, and can also place sampling bottles after sampling. Drive motor is fixedly connected to the top of upper installation frame, the output shaft of drive motor is connected with screw rod through coupling, the bottom end of screw rod is movably connected to lower installation frame, the bottom end of screw rod is fixedly connected with drive gear, the top of drive frame is provided with connecting hole, and screw rod is screw-connected with connecting hole;Screw rod rotates, and drive frame screw-connected on screw rod can rotate, ascend or descend with screw rod, and complete sampling action. Further optimization: the inner wall of fixed frame is fixedly connected with the outer wall of sampling cylinder, a plurality of sputtering baffles are evenly distributed on the fixed frame, and elastic corrugated plates are connected between adjacent two sputtering baffles;When sampling, liquid fertilizer is stirred, to prevent sputtering on the body of staff, sputtering baffle and elastic corrugated plate are opened when sampling, and are retracted after sampling, to protect the safety of staff. Further optimization: one end of the connecting line fixedly provided on the sputtering baffle is connected with the drive frame through the outer wall of the sampling cylinder, the bottom of the sampling cylinder is rotatably connected with a circular ring plate, a gear ring is fixedly provided on the circular ring plate, the gear ring is engaged with the drive gear, and a plurality of stirring plates are fixedly connected to the bottom of the circular ring plate;The circular ring plate is rotatably installed at the bottom of the sampling cylinder, the drive gear is driven to rotate by the screw rod, the gear ring engaged with the drive gear is driven to rotate by the drive gear, and the stirring plates on the gear ring stir liquid fertilizer, so that the obtained sample is more representative. Further optimization: the fixed placement assembly includes a sample seat fixedly provided at the top end of the sampling cylinder, a plurality of sample grooves are provided on the sample seat, installation openings are formed on both sides of the sample seat, and fixed bent rods are fixedly connected to the installation openings;Multiple samples are needed when sampling, and the sampling bottles after sampling can be placed in the sample grooves, which is convenient to operate. Further optimization: the two ends of the fixed bent rod are fixedly connected with hydraulic rods, the hydraulic rods are fixedly connected with a fixing piece, and a non-slip pad is provided at the connection between the fixing piece and the fertilizer storage barrel;The fixing piece can be fixed on the barrel edge of the fertilizer storage barrel, and the non-slip pad can make the fixing between the fixing piece and the barrel edge more stable.Further optimization: the convenient sampling assembly includes a sampling seat fixedly connected with the driving frame, the inside of the sampling seat is provided with a sampling bin, and the bottom of the sampling seat is provided with a plurality of through holes communicated with the sampling bin. Further optimization: the top of the sampling bin is provided with a sampling port, the sampling port is fixedly connected with a sampling pump, the inside of the sampling seat is fixedly provided with a limiting guide pipe, the output end of the sampling pump is fixedly connected with a conveying pipe, and the conveying pipe is communicated with the limiting guide pipe. Further optimization: the bottom inner wall of the limiting guide pipe is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a supporting plate, the top of the supporting plate is fixedly connected with a protective gasket, the outer wall of the supporting plate is fixedly connected with a matching gasket, the outer wall of the matching gasket is in contact with the inner wall of the limiting guide pipe, and the inside of the limiting guide pipe is provided with a sampling bottle, and the bottom of the sampling bottle is in contact with the top of the protective gasket. The convenient sampling assembly is provided, the sampling efficiency is improved, automatic sampling can be performed during sampling, manual operation of the staff is not required, the convenience of the device during use is improved, and when sampling, the protective gasket can prevent the sampling bottle from being damaged due to impact during placement, meanwhile, the matching gasket can seal between the supporting plate and the limiting guide pipe, the electric telescopic rod is prevented from being damaged by contacting the fertilizer, and the service life of the device is improved. A use method of the liquid fertilizer sampling and detecting device, including the following steps: step one, moving the device to the liquid fertilizer storage barrel, and starting the hydraulic rod, the hydraulic rod drives the fixing piece to fix the sampling and detecting device at the barrel opening of the storage barrel; step two, starting the driving motor, the driving motor drives the screw rod to rotate, the screw rod cooperates with the connecting hole to drive the driving frame to move downward, the driving frame is pulled when descending, the connecting line is pulled, the sputtering baffle and the elastic corrugated plate are unfolded, the driving gear at the bottom of the screw rod drives the gear ring to rotate, and the stirring plate arranged on the circular plate is used to stir the liquid fertilizer; step three, when the driving frame drives the sampling seat to contact the liquid fertilizer, the liquid fertilizer enters the sampling bin through the through hole, the sampling pump is started, the liquid fertilizer in the sampling bin is conveyed to the inside of the limiting guide pipe through the conveying pipe, and falls into the sampling bottle, and the sampling is completed; step four, after the sampling is completed, the driving motor is reversed, the driving frame rises, the sputtering baffle and the elastic corrugated plate are folded, the electric telescopic rod is started, the electric telescopic rod drives the sampling bottle to rise, the staff collects the sampling bottle, and places it in the sample groove, and the operation is repeated according to the number of the sample groove and the number of the samples to be collected, after the collection of the fertilizer in the barrel is completed, the hydraulic rod is started to shrink, and the sampling and detecting device is taken off from the fertilizer storage barrel. The scheme has the effects of increasing sampling convenience and sampling safety, can automatically stir the liquid fertilizer during use, so that the sampling quality of the sample is ensured, and the liquid fertilizer can be prevented from splashing and contacting the staff during stirring.

[0034] Reference Figures 1 to 4The application discloses a kind of fertilizer detection devices, comprising: outer box 1, detection instrument 18 is provided in outer box 1, grinding assembly and liquid storage component, liquid storage component is communicated with grinding assembly by extraction component, liquid storage component and grinding assembly are communicated with liquid supply component, and cleaning mechanism is provided in liquid storage component;S

[0035] Grinding assembly includes grinding barrel 7, main shaft 10 is coaxially connected in grinding barrel 7, the top end of main shaft 10 passes through outer box 1 and is coaxially fixed with the output shaft of first motor 3, first motor 3 is fixed on outer box 1, main shaft 10 is coaxially fixed with grinding block 8 on the outer side wall, grinding block 8 is set as inverted frustum, grinding base 9 is coaxially fixed with the inner side wall of grinding barrel 7, grinding groove is formed on the top surface of grinding base 9, grinding groove is matched with grinding block 8, and gap is left between grinding groove and grinding block 8, the gap between grinding groove and grinding block 8 is gradually increased from axis to outer edge, main shaft 10 is coaxially arranged with grinding groove and passes through the bottom end of grinding base 9, and spacing is left between main shaft 10 and grinding base 9, and first stirring rod 11 is fixed to the bottom end of main shaft 10.

[0036] The device of the application is used, the fertilizer sample is placed in grinding barrel 7, first motor 3 drives main shaft 10 to rotate, main shaft 10 drives grinding block 8 to rotate in grinding groove, and the fertilizer is ground into powder, while the set amount of distilled water is introduced into grinding barrel 7 through liquid supply component, so as to be configured into solution to be detected, the bottom end of main shaft 10 is fixed with first stirring rod 11, the solution is stirred, the dissolution of fertilizer is accelerated, and precipitation is avoided, the fertilizer solution is extracted into liquid storage component through extraction component, and the solution is detected by detection instrument.

[0037] Further optimization scheme, spraying assembly is provided in grinding barrel 7, spraying assembly includes annular pipe 23, annular pipe 23 is communicated with liquid supply component, annular pipe 23 is arranged above grinding base 9, annular pipe 23 is coaxially arranged with grinding barrel 7, a plurality of fixed rods 22 are fixedly connected on the outer side wall of annular pipe 23 in circumferential direction at equal intervals, fixed rod 22 is fixed on the inner side wall of grinding barrel 7, a plurality of spray heads 24 are fixedly connected and communicated at the bottom end of annular pipe 23, and the outlet end of a plurality of spray heads 24 faces the inner side wall of grinding barrel 7.

[0038] Grinding barrel 7 is communicated with feeding hopper 2, and feeding hopper 2 is located above grinding block 8;

[0039] Distilled water enters annular pipe 23 and is sprayed on the inner wall of grinding barrel 7 through spray head 24, to avoid that floating particles adhere to the inner wall of grinding barrel 7, and at the same time, the residual fertilizer in grinding groove is washed down by distilled water;Fertilizer is ground and dissolved simultaneously, which improves work efficiency.

[0040] Further optimization scheme, the bottom end of the grinding barrel 7 is provided as an inverted cone cylinder, the bottom end of the grinding barrel 7 is communicated with a discharge pipe 12, the discharge pipe 12 penetrates the outer box body 1, and the discharge pipe 12 is provided with a solenoid valve 13.

[0041] The remaining solution in the grinding barrel 7 is not contaminated and can be recycled;

[0042] Further optimization scheme, the liquid storage assembly comprises a liquid storage barrel 16 fixedly connected in the outer box body 1, the bottom end of the liquid storage barrel 16 is fixedly connected with a second motor 17, the output shaft of the second motor 17 penetrates into the liquid storage barrel 16 and is fixedly connected with a stirring shaft 19 in a coaxial manner, the stirring shaft 19 is rotatably connected in the liquid storage barrel 16 in a coaxial manner, the outer side wall of the stirring shaft 19 is fixedly connected with a second stirring rod 20, a detection instrument 18 is fixedly connected to the outer side wall of the liquid storage barrel 16, and the detection instrument 18 is located at the lower portion of the liquid storage barrel 16.

[0043] Further optimization scheme, the extraction assembly comprises a suction pipe 14, one end of the suction pipe 14 penetrates into the grinding barrel 7 and is close to the bottom end of the grinding barrel 7, the suction pipe 14 is provided with a suction pump 15, the other end of the suction pipe 14 penetrates into the liquid storage barrel 16, and the end of the suction pipe 14 in the liquid storage barrel 16 is provided with a first flow meter 25, and the first flow meter 25 is embedded on the inner side wall of the liquid storage barrel 16.

[0044] The first flow meter 25 is used for measuring the amount of solution sent into the liquid storage barrel 16.

[0045] The suction pump 15 extracts the fertilizer solution in the grinding barrel 7 into the liquid storage barrel 16, meanwhile, the second motor 17 drives the second stirring rod 20 to move, so that precipitation is avoided, and the detection instrument 18 is used for detecting the fertilizer solution.

[0046] Further optimization scheme, the cleaning mechanism comprises a hollow shaft motor 21 fixedly connected to the top end of the liquid storage barrel 16, the hollow shaft motor 21 is coaxially arranged with the liquid storage barrel 16, the output shaft of the hollow shaft motor 21 penetrates into the liquid storage barrel 16 and is fixedly connected with one end of a Z-shaped piece 27, the Z-shaped piece 27 is matched with the inner cavity of the liquid storage barrel 16, the other end of the Z-shaped piece 27 is fixedly connected with a rotating ring 26, the rotating ring 26 is rotatably connected to the outer side wall of the stirring shaft 19 in a coaxial manner, the outer side of the Z-shaped piece 27 is provided with brush 28, and the brush 28 is in contact with the inner wall of the liquid storage barrel 16;

[0047] A channel 34 is formed in the top end of the Z-shaped piece 27, the channel 34 is horizontally arranged, the channel 34 penetrates through one side of the Z-shaped piece 27 close to the inner wall of the liquid storage barrel 16, the channel 34 is communicated with the hollow shaft of the hollow shaft motor 21, and the hollow shaft of the hollow shaft motor 21 is communicated with the liquid supply assembly.

[0048] Further optimization scheme, the inner side of the U-shaped piece 27 is fixed with a plurality of protective shells 32, the plurality of protective shells 32 are equidistantly arranged along the length direction of the liquid storage barrel 16, the protective shell 32 is fixed with a slide column 33, the slide column 33 is perpendicular to the U-shaped piece 27, a spring is sleeved on the slide column 33, a support plate 31 is slidably connected on the slide column 33, the spring is arranged between the support plate 31 and the protective shell 32, the support plate 31 does not come out of the slide column 33, one side of the support plate 31 is fixed with a slide rod 30, the slide rod 30 penetrates the U-shaped piece 27, the slide rod 30 is slidably connected with the U-shaped piece 27, the slide rod 30 penetrates the U-shaped piece 27 and is fixed with a mounting rod 29, the bristles 28 are fixed on the mounting rod 29.

[0049] Further optimization scheme, the liquid supply assembly includes a water tank 4 fixed on the top end of the outer box body 1, the water tank 4 is provided with a first water pump 5 and a second water pump 6, the second water pump 6 is communicated with the hollow shaft of the hollow shaft motor 21, the first water pump 5 is communicated with the annular pipe 23, and the first water pump 5 and the annular pipe 23 are provided with a second flow meter 35, and the second flow meter 35 is close to the annular pipe 23.

[0050] The hollow shaft motor 21 drives the U-shaped piece 27 to make circular motion in the liquid storage barrel 16, and the bristles 28 are used to brush the inner wall of the liquid storage barrel 16, and the spring is used to make the bristles 28 close to the inner wall of the liquid storage barrel 16.

[0051] The second water pump 6 passes the distilled water in the water tank 4 into the channel 34 to flush the liquid storage barrel 16.

[0052] Further optimization scheme, the top surface of the grinding block 8 is provided as an inclined surface, and the inclined surface is inclined downward on one side of the outer edge of the grinding block 8.

[0053] Avoiding the fertilizer from staying on the top surface of the grinding block 8.

[0054] A fertilizer detection method based on a fertilizer detection device, comprising the following steps:

[0055] A certain amount of fertilizer sample is taken and placed in the grinding barrel 7, the fertilizer sample is ground into powder, a certain amount of distilled water is introduced into the grinding barrel 7, the fertilizer is melted, then the solution is transported to the liquid storage assembly through the extraction assembly, the solution in the liquid storage assembly is detected by the detection instrument 18, after the detection is completed, the solution in the liquid storage assembly and the grinding assembly is discharged and stored respectively, and the liquid storage assembly is cleaned by the cleaning mechanism.

[0056] The specific detection method is as follows:

[0057] According to the experimental requirements, the quantitative fertilizer is selected as the sample, the sample is sent into the grinding barrel 7 through the feeding hopper 2, the first motor 3 drives the main shaft 10 to rotate, the main shaft 10 drives the grinding block 8 to rotate in the grinding groove, the fertilizer is ground into powder, the distilled water enters the annular pipe 23 and is sprayed on the inner wall of the grinding barrel 7 through the spray head 24, and the residual fertilizer in the grinding groove is washed down; the fertilizer is ground and dissolved at the same time, and the working efficiency is improved;

[0058] The suction pump 15 sucks the fertilizer solution in the grinding barrel 7 into the liquid storage barrel 16, and the second motor 17 drives the second stirring rod 20 to move, so that the fertilizer does not produce precipitation in the liquid storage barrel 16, and the fertilizer solution is detected by the detection instrument 18;

[0059] After the detection is completed, the solutions in the grinding barrel 7 and the liquid storage barrel 16 are discharged and stored respectively, the hollow shaft motor 21 drives the annular part 27 to make circular motion in the liquid storage barrel 16, the brush 28 is used to sweep the inner wall of the liquid storage barrel 16, the spring is used to make the brush 28 tightly adhere to the inner wall of the liquid storage barrel 16, and the second water pump 6 is used to make the distilled water in the water tank 4 pass through the channel 34 to flush the liquid storage barrel 16; the distilled water enters the annular pipe 23 and is sprayed on the inner wall of the grinding barrel 7 through the spray head 24, so that the grinding barrel 7 is flushed.

[0060] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the present application.

[0061] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A fertilizer testing device, characterized in that, include: The outer casing (1) contains a testing instrument (18), a grinding component and a liquid storage component. The liquid storage component and the grinding component are connected through an extraction component. Both the liquid storage component and the grinding component are connected to the liquid supply component. The liquid storage component contains a cleaning mechanism. The grinding assembly includes a grinding barrel (7), a main shaft (10) is coaxially rotatably connected inside the grinding barrel (7), the top end of the main shaft (10) extends out of the outer housing (1) and is coaxially fixed to the output shaft of a first motor (3), the first motor (3) is fixed to the outer housing (1), a grinding block (8) is coaxially fixed to the outer wall of the main shaft (10), the grinding block (8) is configured as an inverted frustum, and a grinding base (9) is coaxially fixed to the inner wall of the grinding barrel (7). A grinding groove is provided on the top surface of the grinding base (9). The grinding groove is adapted to the grinding block (8). There is a gap between the grinding groove and the grinding block (8). The gap between the grinding groove and the grinding block (8) gradually increases from the axis to the outer edge. The main shaft (10) is coaxial with the grinding groove and extends out of the bottom end of the grinding base (9). There is a gap between the main shaft (10) and the grinding base (9). The bottom end of the main shaft (10) is fixedly connected to the first stirring rod (11).

2. The fertilizer testing device according to claim 1, characterized in that: The grinding barrel (7) is equipped with a spray assembly, which includes an annular pipe (23). The annular pipe (23) is connected to the liquid supply assembly. The annular pipe (23) is located above the grinding base (9). The annular pipe (23) is coaxially arranged with the grinding barrel (7). Multiple fixing rods (22) are fixedly connected to the outer wall of the annular pipe (23) at equal intervals in the circumferential direction. The fixing rods (22) are fixedly connected to the inner wall of the grinding barrel (7). Multiple spray heads (24) are fixedly connected to and connected to the bottom end of the annular pipe (23). The outlet ends of the multiple spray heads (24) face the inner wall of the grinding barrel (7).

3. The fertilizer testing device according to claim 1, characterized in that: The bottom end of the grinding barrel (7) is set as an inverted cone shape. The bottom end of the grinding barrel (7) is connected to a discharge pipe (12). The discharge pipe (12) passes through the outer box (1). A solenoid valve (13) is provided on the discharge pipe (12).

4. The fertilizer testing device according to claim 2, characterized in that: The liquid storage assembly includes a liquid storage tank (16) fixed inside the outer casing (1). A second motor (17) is fixed to the bottom end of the liquid storage tank (16). The output shaft of the second motor (17) passes through the liquid storage tank (16) and is coaxially fixed to a stirring shaft (19). The stirring shaft (19) is coaxially rotatably connected inside the liquid storage tank (16). A second stirring rod (20) is fixed to the outer wall of the stirring shaft (19). The detection instrument (18) is fixed to the outer wall of the liquid storage tank (16). The detection instrument (18) is located at the lower part of the liquid storage tank (16), and the detection end of the detection instrument (18) extends into the liquid storage tank (16).

5. The fertilizer testing device according to claim 1, characterized in that: The extraction assembly includes a suction tube (14), one end of which extends into the grinding barrel (7) and is close to the bottom of the grinding barrel (7). A suction pump (15) is provided on the suction tube (14), and the other end of the suction tube (14) passes through the liquid storage tank (16). A first flow meter (25) is provided at the end of the suction tube (14) located in the liquid storage tank (16). The first flow meter (25) is embedded in the inner wall of the liquid storage tank (16).

6. The fertilizer testing device according to claim 4, characterized in that: The cleaning mechanism includes a hollow shaft motor (21) fixed to the top of the liquid storage tank (16). The hollow shaft motor (21) is coaxially arranged with the liquid storage tank (16). The output shaft of the hollow shaft motor (21) passes into the liquid storage tank (16) and is fixed to one end of a U-shaped part (27). The U-shaped part (27) is adapted to the inner cavity of the liquid storage tank (16). The other end of the U-shaped part (27) is fixed to a rotating ring (26). The rotating ring (26) is coaxially rotatably connected to the outer wall of the stirring shaft (19). The outer side of the U-shaped part (27) is provided with bristles (28). The bristles (28) are in contact with the inner wall of the liquid storage tank (16). The top of the shaped component (27) is provided with a channel (34), the channel (34) is horizontally arranged, the channel (34) passes through the side of the shaped component (27) near the inner wall of the liquid storage tank (16), the channel (34) is connected to the hollow shaft of the hollow shaft motor (21), and the hollow shaft of the hollow shaft motor (21) is connected to the liquid supply assembly.

7. The fertilizer testing device according to claim 6, characterized in that: Multiple protective shells (32) are fixedly connected to the inner side of the C-shaped component (27). The multiple protective shells (32) are equally spaced along the length of the liquid storage tank (16). A sliding column (33) is fixedly connected inside the protective shell (32). The sliding column (33) is perpendicular to the C-shaped component (27). A spring is sleeved on the sliding column (33). A support plate (31) is slidably connected to the sliding column (33). The spring is disposed on the support plate (31). Between the protective shell (32) and the support plate (31), the support plate (31) does not disengage from the sliding column (33). A sliding rod (30) is fixedly connected to one side of the support plate (31). The sliding rod (30) passes through the shaped member (27). The sliding rod (30) is slidably connected to the shaped member (27). The sliding rod (30) passes through the shaped member (27) and is fixedly connected to the mounting rod (29). The bristles (28) are fixedly connected to the mounting rod (29).

8. The fertilizer testing device according to claim 6, characterized in that: The liquid supply assembly includes a water tank (4) fixed to the top of the outer casing (1). A first water pump (5) and a second water pump (6) are installed in the water tank (4). The second water pump (6) is connected to the hollow shaft of the hollow shaft motor (21). The first water pump (5) is connected to the annular pipe (23). A second flow meter (35) is installed between the first water pump (5) and the annular pipe (23). The second flow meter (35) is close to the annular pipe (23).

9. The fertilizer testing device according to claim 1, characterized in that: The top surface of the grinding block (8) is set as an inclined surface, and the inclined surface is located on one side of the outer edge of the grinding block (8) and tilts downward.

10. A fertilizer testing method, based on the fertilizer testing device according to any one of claims 1-9, characterized in that, Includes the following steps: Take a set amount of fertilizer sample and place it in the grinding barrel (7). Grind the fertilizer sample into powder and simultaneously introduce a set amount of distilled water into the grinding barrel (7) to dissolve the fertilizer. Then, transport the solution to the storage component through the extraction component. Detect the solution in the storage component through the detection instrument (18). After the detection is completed, release the solution in the storage component and the grinding component and store them separately. Clean the storage component through the cleaning mechanism.

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