Preparation process, equipment and application of synergistic fertilizer

Abstract

The invention provides a preparation process and equipment of a synergistic fertilizer and application, and the preparation process comprises the following steps: S1, preparing raw materials: selecting a powdery synergist and a granular fertilizer, and preparing the powdery synergist into a synergist spraying solution according to a predetermined proportion; s2, spraying and mixing: controlling the fertilizer in a granular state to move directionally according to a predetermined track, and uniformly spraying the synergist spraying solution prepared in the step S1 on the surface of the fertilizer moving directionally in the moving process to obtain a synergistic fertilizer; s3, stirring and mixing: mechanically mixing the synergistic fertilizer obtained in the step S2 through a mechanical stirring device to further improve the mixing effect between the synergist spraying solution and the fertilizer; and S4, drying and curing. The processing process is continuously carried out in a relatively closed environment, so that the production environment and the processing technology in a workshop are improved, and meanwhile, the continuous preparation efficiency of the synergistic fertilizer is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizer production, and in particular to a preparation process, equipment and application of a synergistic fertilizer. Background Art

[0002] Some slow-release enhancers and coated enhancers need to be mixed after the fertilizer is granulated. Most of this type of enhancers are in powder form, and the amount of enhancers used is generally small. Some companies use stirring equipment to mix granular fertilizers and powdered enhancers, and some companies also use electrostatic technology to allow powdered enhancers to better adhere to the surface of granular enhancers.

[0003] Due to the differences in proportion and form between the synergist and the fertilizer, stirring takes a long time and has a poor effect. Some synergists in powder form also need to be stirred in a closed state, which affects the stirring efficiency. The synergist can be prepared into a solution and sprayed on the surface of the granular fertilizer to solve the stirring problem.

[0004] However, the processing method of simply spraying and drying has high requirements on the uniformity and thickness of the distribution during the fertilizer transportation process. The existing processing method is difficult to effectively combine the spraying, stirring and drying of the fertilizer, which affects the preparation efficiency of the synergistic fertilizer. Summary of the invention

[0005] In view of the above problems, the present invention provides a preparation process, equipment and application of a synergistic fertilizer. The processing process of the invention is carried out continuously in a relatively closed environment, which improves the production environment and processing technology in the workshop, and at the same time greatly improves the efficiency of continuous preparation of synergistic fertilizer.

[0006] To solve the above problems, the technical solution adopted by the present invention is:

[0007] A preparation process of a synergistic fertilizer comprises the following steps: S1, raw material preparation, selecting a synergist in a powder state and a fertilizer in a granular state, and preparing the synergist in the powder state into a synergist spray solution according to a predetermined ratio; S2, spraying and mixing, controlling the fertilizer in a granular state to move in a directional manner according to a predetermined trajectory, and uniformly spraying the synergist spray solution prepared in step S1 on the surface of the fertilizer moving in a directional manner during the movement to obtain the synergistic fertilizer; S3, stirring and mixing, mechanically mixing the synergistic fertilizer obtained in step S2 by a mechanical stirring device, and further improving the mixing effect between the synergist spray solution and the fertilizer; S4, drying and curing, discharging the synergistic fertilizer stirred and mixed in step S3 into a drying device, and completing heating and drying during the directional movement of the synergistic fertilizer in the drying device; wherein, the fertilizer is sprayed and mixed, stirred and mixed, and dried and cured in sequence under the action of gravity on an inclined material discharge path, and the synergistic fertilizer is prepared after drying and curing.

[0008] A preparation device for synergistic fertilizer, used in the above-mentioned preparation process of synergistic fertilizer, comprises a mounting base, a drying device and a feeding device are mounted on the upper end of the mounting base, a mixing device is mounted between the feeding device and the drying device, the mixing device comprises a spray mixing device and a stirring mixing device arranged in sequence, a synergist spray solution is sprayed on the fertilizer surface through the spray mixing device, the spray mixing device comprises an inclined spray mixing clamp plate, a spray mixing channel for fertilizer to pass through is formed inside the spray mixing clamp plate, a spray mixing assembly is mounted on the spray mixing channel path; the lower end of the stirring mixing device is connected to the drying device, the upper end of the spray mixing device is connected to the feeding device, the spray mixing device, the stirring mixing device and the drying device are located on an inclined feeding path, and the fertilizer passes through the spray mixing device, the stirring mixing device and the drying device in sequence under the action of gravity to prepare the synergistic fertilizer.

[0009] Preferably, a dispersing device is also installed on the spray mixing channel path, and the dispersing device is located between the spray mixing component and the feeding device, and a pumping device is installed between the lower end of the dispersing device and the lower end of the spray mixing component.

[0010] Preferably, the dispersion device comprises a hollow dispersion body, an exhaust opening is installed at the upper end of the dispersion body, a sinking area is formed below the inner wall of the dispersion body, and the first end of the pumping device is connected to the sinking area.

[0011] Preferably, the spray mixing splint includes a feed end located close to the feeding device and a discharge end located away from the feeding device, the lateral dimension of the feed end is smaller than the lateral dimension of the discharge end, and a dispersion air nozzle connected to a pumping device is installed on the inner wall of the dispersion device, and the dispersion air nozzle is located in the middle position and inclined toward the outside.

[0012] Preferably, the spray mixing assembly comprises a hollow spray mixing body, a spray assembly is mounted on the upper end of the spray mixing body, and an arc-shaped lifting assembly is mounted on the lower end of the spray mixing body, and the lifting assembly is opposite to the spray assembly.

[0013] By setting up a lifting component, the fertilizer can be lifted, the distance between the fertilizer and the spraying component can be shortened, and the effect of spraying the synergist on the fertilizer surface can be further improved; at the same time, the lifting component here is designed to be arc-shaped, which can increase the surface area of ​​the outer side, further improve the dispersion effect of the granular fertilizer, and further improve the effect of spraying the synergist.

[0014] Preferably, the lifting assembly includes a lifting drum, the surface of which is provided with filter openings arranged in an array, a power shaft is fixed to the side wall of the lifting drum, and the pumping device is connected to the interior of the lifting drum, and the synergist spray solution and particulate matter remaining in the lifting drum are directionally pumped into the dispersion device through the pumping device.

[0015] At the same time, the lifting drum is connected through the pumping device, and a plurality of filtering openings are opened on the surface of the lifting drum. The size of the filtering openings is smaller than the size of the granular fertilizer. The granular fertilizer normally moves downward through the surface of the lifting drum, and some small-sized particulate matter can pass through the filtering openings and be sucked away by the negative pressure of the pumping device. At the same time, under the action of the pumping device, the lifting drum can be placed in a negative pressure state, and some granular fertilizers can be relatively stably adsorbed on the surface of the lifting drum under the action of negative pressure, thereby further ensuring the stability of the spraying.

[0016] Preferably, the stirring and mixing device comprises a stirring and mixing body, the lower end of which is connected to the drying equipment through a conducting pipe, and a stirring and mixing component is also installed on the inner wall of the stirring and mixing body, and the stirring and mixing component is located on an inclined material discharge path.

[0017] Preferably, the stirring and mixing assembly comprises a stirring and mixing shaft and stirring and mixing blades fixed to the side wall of the stirring and mixing shaft, and at least two groups of the stirring and mixing assembly are arranged at intervals, and the extending direction of the stirring and mixing assembly intersects with the spray mixing device.

[0018] An application of a preparation process for a synergistic fertilizer, using the above-mentioned preparation process for the synergistic fertilizer, preparing the nitrification inhibitor into a nitrification inhibitor solution by mixing granular nitrogen fertilizer and powdered nitrification inhibitor according to mass ratio; spraying the nitrification inhibitor solution evenly on the surface of the granular nitrogen fertilizer in the process of controlling the directional movement of the granular nitrogen fertilizer, and then stirring and mixing the nitrogen fertilizer with the nitrification inhibitor solution sprayed on the surface, and after sufficient stirring and mixing, discharging into a drying device and heating and drying to prepare the synergistic nitrogen fertilizer.

[0019] The beneficial effects of the present invention are:

[0020] Through the above structural design, the synergist and the granular fertilizer can be efficiently and fully mixed by using the spray mixing device and the stirring mixing device in turn, thereby improving the uniformity and stability of the distribution of the synergist in the granular fertilizer, and reducing the requirements for uniformity and thickness control of the granular fertilizer during transportation; the overall structure uses the gravity of the fertilizer to transport the fertilizer, realizing directional and quantitative efficient mixing, and the production and processing process is carried out continuously in a relatively closed environment, which improves the production environment and processing technology in the workshop, and at the same time greatly improves the efficiency of continuous preparation of synergistic fertilizers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 For the present invention Figure 1 Schematic diagram of the main structure.

[0023] Figure 3 For the present invention Figure 1 Schematic diagram of the side structure.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the spray mixing device of the present invention.

[0025] Figure 5 For the present invention Figure 4 Schematic diagram of the top view structure.

[0026] Figure 6 For the present invention Figure 4 Schematic diagram of the side structure.

[0027] Figure 7 For the present invention Figure 5 AA section view of the structure.

[0028] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at B.

[0029] Fig. 9 For the present invention Figure 7 Enlarged structural diagram at C.

[0030] In the figure: 100, mounting base; 110, driving assembly; 111, driving wheel; 112, driving ring; 120, heightening bracket; 200, unloading device; 300, spray mixing device; 310, spray mixing splint; 3101, feeding end; 3102, discharging end; 311, spray mixing channel; 320, dispersion device; 321, exhaust opening; 322, dispersion body; 323, sinking area; 330, spray mixing assembly; 331, spray assembly; 332, spray mixing body; 333, lifting assembly; 334, power shaft; 340, pumping device; 400, stirring and mixing device; 410, stirring and mixing body; 420, stirring and mixing assembly; 430, conducting pipe; 500, drying equipment. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] By mixing a certain proportion of enhancers into fertilizers, the absorption, storage, and release effects of fertilizers can be improved. Common enhancers include chemical enhancers and biological enhancers.

[0033] Some slow-release enhancers and coated enhancers need to be mixed after the fertilizer is granulated. Most of this type of enhancers are in powder form, and the amount of enhancers used is generally small. Some companies use stirring equipment to mix granular fertilizers and powdered enhancers, and some companies also use electrostatic technology to allow powdered enhancers to better adhere to the surface of granular enhancers.

[0034] Due to the difference in proportion and form between the synergist and the fertilizer, stirring takes a long time and has a poor stirring effect. Some synergists in powder form need to be stirred in a closed state, which affects the stirring efficiency. The synergist is prepared into a solution and sprayed on the surface of the granular fertilizer, which can solve the stirring problem well. However, the processing method of simply spraying and drying has high requirements on the uniformity and thickness of the distribution during the fertilizer transportation process. The existing processing method is difficult to effectively combine the spraying, stirring and drying of the fertilizer, which affects the preparation efficiency of the synergistic fertilizer.

[0035] A preparation process of a synergistic fertilizer comprises the following steps:

[0036] S1. Raw material preparation: selecting a synergist in powder form and a fertilizer in granular form, and preparing the synergist in powder form into a synergist spraying solution according to a predetermined ratio; the synergist and the fertilizer can be proportioned by weight, and the mass of the synergist solution is determined according to the time required for the entire fertilizer to move and the synergist solution to be sprayed per unit time, so as to ensure that the synergist solution can be evenly sprayed on the entire surface of the granular fertilizer.

[0037] S2, spraying and mixing, controlling the fertilizer in a granular state to move in a directional manner along a predetermined trajectory, and during the movement, spraying the synergist spraying solution prepared in step S1 evenly on the surface of the fertilizer moving in a directional manner to obtain a synergistic fertilizer; in this process, the granular fertilizer needs to be controlled to be relatively uniform to avoid the overall thickness of the fertilizer being too large, resulting in the inability to spray the synergist solution on the bottom surface of the fertilizer.

[0038] S3, stirring and mixing, mechanically mixing the synergistic fertilizer obtained in step S2 by a mechanical stirring device, further improving the mixing effect between the synergist spraying solution and the fertilizer; the fertilizer after the synergist solution is sprayed can be mixed inside and outside by mechanical stirring, which can further ensure the uniformity of mixing between the synergist solution and the granular fertilizer.

[0039] S4, drying and solidification, the synergistic fertilizer that has been stirred and mixed in step S3 is discharged into a drying device, and the synergistic fertilizer is heated and dried during the process of directional movement in the drying device; after heating and drying, the liquid water evaporates, and the synergist is effectively attached to the surface of the granular fertilizer to obtain the synergistic fertilizer.

[0040] It should also be noted that the fertilizer is sprayed and mixed, stirred and mixed, and dried and solidified in sequence under the action of gravity on the inclined feeding path, and the high-efficiency fertilizer is prepared after drying and solidification; compared with the traditional belt-controlled directional movement of granular fertilizer, the difficulty of fertilizer movement control is simplified, and the fertilizer can move in a direction under the action of gravity to complete the above-mentioned processing in sequence, thereby accelerating the efficiency of the preparation of high-efficiency fertilizer.

[0041] Refer to the attached Figure 1 -Attached Fig. 9 , a preparation device for synergistic fertilizer, used for the above-mentioned preparation process of synergistic fertilizer, includes an installation base 100, a drying device 500 and a feeding device 200 are installed on the upper end of the installation base 100, a mixing device is installed between the feeding device 200 and the drying device 500, the feeding device 200 here can select a common feeding hopper, and the fertilizer in a granular state is placed in the feeding device 200. The granular fertilizer passes through the mixing device in a directional manner under the action of gravity, and the fertilizer and the synergist are mixed. After mixing, they are dried in the drying device 500, thereby realizing the integrated production and preparation of synergistic fertilizer.

[0042] Specifically, the mixing equipment includes a spray mixing device 300 and a stirring mixing device 400 arranged in sequence. The synergist spray solution is sprayed on the fertilizer surface through the spray mixing device 300, and the granular fertilizer sprayed with the synergist can be mechanically mixed through the stirring mixing device 400, which further improves the synergist dispersion effect and ensures the full mixing of the synergist and the granular fertilizer.

[0043] Specifically, the spray mixing device 300 includes a tilted spray mixing clamp 310, a spray mixing channel 311 for the fertilizer to pass through is formed inside the spray mixing clamp 310, and a spray mixing assembly 330 is installed on the path of the spray mixing channel 311. The synergist spray solution can be evenly sprayed on the surface of the granular fertilizer through the spray mixing assembly 330. Here, the spray mixing clamp 310 is tilted, and the granular fertilizer can move in a directed manner in the spray mixing clamp 310. The spray mixing channel 311 is flatly designed, which can allow the fertilizer to be spread out in a dispersed state and move in a directed manner.

[0044] The lower end of the stirring and mixing device 400 is connected to the drying equipment 500, and the upper end of the spray mixing device 300 is connected to the feeding device 200. The spray mixing device 300, the stirring and mixing device 400 and the drying equipment 500 are located on an inclined feeding path. Under the action of gravity, the fertilizer passes through the spray mixing device 300, the stirring and mixing device 400 and the drying equipment 500 in sequence to prepare a synergistic fertilizer. The fertilizer sprayed with the synergist can be mixed by the stirring and mixing device 400, and finally enters the drying equipment 500 for drying to obtain a dry synergistic fertilizer.

[0045] The drying device 500 here can be selected as a drum drying device. Electric heating wires and guide plates are installed in the drying device 500 to control the synergistic fertilizer to complete drying during the directional movement; a driving assembly 110 is installed on the upper end of the mounting base 100 to control the directional rotation of the drying device 500; an increasing bracket 120 is provided on the upper end of the mounting base 100 to lift the unloading device 200 to a predetermined height, thereby increasing the gravitational potential energy of the granular fertilizer and allowing it to move directional downward along a predetermined trajectory.

[0046] It should be noted here that the spray mixing device 300 here can be arranged in parallel in multiple groups, and the multiple groups of spray mixing devices 300 have the same inclination and the same structure, and can provide fertilizers for directional movement to complete spraying. The multiple groups of spray mixing devices 300 enter the stirring and mixing device 400 for mixing. Through the above-mentioned structural design, after the multiple groups of fertilizers are mixed, the upper surface of the second group sprayed with the synergist can be fitted with the lower surface of the previous group of fertilizers, which can further improve the mixing of the synergist between the granular fertilizers. Under the action of the stirring and mixing device 400, the multiple layers of fertilizers sprayed with the synergist can be efficiently mixed, thereby improving the quality of the finished synergistic fertilizers; in a static state, the structure between the multiple layers of fertilizers sprayed with the synergist can refer to the attached Figure 2 .

[0047] In summary, through the above-mentioned structural design, the spray mixing device and the stirring mixing device are used successively to efficiently and fully mix the synergist and the granular fertilizer, thereby improving the uniformity and stability of the distribution of the synergist in the granular fertilizer, and reducing the requirements for uniformity and thickness control of the granular fertilizer during transportation; the overall structure uses the gravity of the fertilizer to transport the fertilizer, thereby realizing directional and quantitative efficient mixing, and the production and processing process is carried out continuously in a relatively closed environment, which improves the production environment in the workshop and greatly improves the efficiency of continuous preparation of synergistic fertilizers.

[0048] A dispersion device 320 is also installed on the path of the spray mixing channel 311. The dispersion device 320 is located between the spray mixing component 330 and the unloading device 200. A pumping device 340 is installed between the lower end of the dispersion device 320 and the lower end of the spray mixing component 330. The remaining synergist and some small-sized particles at the spray mixing component 330 can be directionally pumped through the pumping device 340. Pumping to one side of the dispersion device 320 can make the remaining synergist contact with the bottom of the granular fertilizer to complete full absorption; at the same time, the blown gas mixed with small-sized particles can disperse the fertilizer particles at the top position and enhance the roughness of the fertilizer surface, which is convenient for the subsequent adhesion effect of the synergist sprayed at the spray mixing component 330, thereby improving the quality of the finished synergistic fertilizer.

[0049] Please refer to the attached Figure 8 Specifically, the dispersion device 320 includes a hollow dispersion body 322, an exhaust opening 321 is installed at the upper end of the dispersion body 322, and a sinking area 323 is formed below the inner wall of the dispersion body 322. The first end of the pumping device 340 is connected to the sinking area 323. The excess gas can be discharged through the exhaust opening 321 to maintain the pressure balance in the spray mixing channel 311. By setting the sinking area 323, the blown gas and the granular fertilizer can be controlled to have a predetermined distance to ensure the normal blowing of the gas. At the same time, it can enhance the dispersion effect on the granular fertilizer, enhance the friction and collision effect between the granular fertilizers, and further enhance the roughness of the surface of the granular fertilizer.

[0050] Please refer to the attached Figure 5 , further; the spray mixing clamp 310 includes a feed end 3101 located near the feeding device 200 and a discharge end 3102 located away from the feeding device 200, the lateral dimension of the feed end 3101 is smaller than the lateral dimension of the discharge end 3102, and a dispersion air nozzle connected to the pumping device 340 is installed on the inner wall of the dispersion device 320, and the dispersion air nozzle is located in the middle position and inclined toward the outside. By extending the lateral dimension of the discharge end 3102, the granular fertilizer can be initially dispersed toward both sides during the directional movement, thereby improving the uniformity of the distribution of the granular fertilizer and improving the effect of the synergist spraying; at the same time, the granular fertilizer can be dispersed at the front end through the dispersion air nozzle, and the granular fertilizer in the middle can be controlled to be dispersed toward both sides as much as possible, thereby improving its distribution uniformity.

[0051] It should be noted here that the thickness of the interior of the spray mixing channel 311 on the side close to the feed end 3101 can be set larger, and the thickness on the side close to the discharge end 3102 can be designed to be smaller, so as to ensure the relative consistency of the amount of directional movement of fertilizers on the front and rear sides, and ensure the relative uniformity of the fertilizer distribution.

[0052] Please refer to the attached Fig. 9 The spray mixing component 330 includes a hollow spray mixing body 332, a spray component 331 is installed on the upper end of the spray mixing body 332, and an arc-shaped lifting component 333 is installed on the lower end of the spray mixing body 332. The lifting component 333 is opposite to the spray component 331. By setting the lifting component 333, the fertilizer can be lifted, and the distance between the fertilizer and the spray component 331 is shortened, thereby further improving the effect of spraying the synergist on the fertilizer surface; at the same time, the lifting component 333 here is designed to be arc-shaped, which can increase the surface area of ​​the outer side, further improve the dispersion effect of the granular fertilizer, and further improve the effect of spraying the synergist.

[0053] Specifically, the lifting assembly 333 includes a lifting drum, the surface of which is provided with filter openings arranged in an array, a power shaft 334 is fixed to the side wall of the lifting drum, and a pumping device 340 is connected to the interior of the lifting drum. The synergist spray solution and particulate matter remaining in the lifting drum are directionally pumped into the dispersion device 320 through the pumping device 340. During the process of spraying the synergist, the lifting drum is controlled to rotate in the same direction as the fertilizer movement. In this process, the lifting drum and the fertilizer movement speed are kept consistent, thereby ensuring the directional movement speed of the granular fertilizer.

[0054] At the same time, the lifting drum is connected through the pumping device 340, and a plurality of filter openings are opened on the surface of the lifting drum. The size of the filter openings is smaller than the size of the granular fertilizer. The granular fertilizer normally moves downward through the surface of the lifting drum, and some small-sized particulate matter can pass through the filter openings and be sucked away by the negative pressure of the pumping device 340. At the same time, under the action of the pumping device 340, the lifting drum can be placed in a negative pressure state, and some granular fertilizers can be relatively stably adsorbed on the surface of the lifting drum under the action of negative pressure, thereby further ensuring the stability of the spraying.

[0055] It should be noted here that the filter opening size here is small, and the force applied to the granular fertilizer is small; during the rotation of the lifting roller size, the granular fertilizer at the front end contacts the inner wall of the spray mixing channel 311, and the granular fertilizer falls under the action of the force and continues to move in a directional manner along the spray mixing channel 311.

[0056] Please refer to the attached Figure 3 The stirring and mixing device 400 includes a stirring and mixing body 410, the lower end of which is connected to the drying equipment 500 through a conducting pipe 430, and a stirring and mixing component 420 is also installed on the inner wall of the stirring and mixing body 410. The stirring and mixing component 420 is located on an inclined feeding path, and the conducting pipe 430 is in a relatively fixed state. The lower end of the conducting pipe 430 extends into the drying equipment 500 to guide the mixed synergistic fertilizer; through the stirring and mixing component 420, multiple groups of sprayed synergistic fertilizers in the stirring and mixing body 410 can be mechanically mixed to further ensure the uniformity of dispersion of the synergistic fertilizer.

[0057] The stirring and mixing component 420 includes a stirring and mixing shaft and stirring and mixing blades fixed to the side wall of the stirring and mixing shaft. At least two groups of stirring and mixing components 420 are arranged at intervals. The extension direction of the stirring and mixing component 420 intersects with the spray mixing device 300. Through the above-mentioned structural design, the synergistic fertilizer on the outside and the synergistic fertilizer on the inside can be stirred and mixed, which greatly improves the mixing effect of the synergistic fertilizer.

[0058] The invention discloses an application of a preparation process of a synergistic fertilizer. The preparation process of the synergistic fertilizer is used to prepare a nitrification inhibitor solution by mixing a granular nitrogen fertilizer and a powdered nitrification inhibitor according to a mass ratio, wherein the ratio between the granular nitrogen fertilizer and the powdered nitrification inhibitor needs to be adjusted according to the application environment of the synergistic fertilizer, generally ranging from 0.25% to 8%. The ratio of the solution amount can be comprehensively determined according to the movement time of the nitrogen fertilizer and the spraying rate of the synergist per unit time. The nitrification inhibitor solution is uniformly sprayed on the surface of the granular nitrogen fertilizer in the process of controlling the directional movement of the granular nitrogen fertilizer, and the nitrogen fertilizer with the nitrification inhibitor solution sprayed on the surface is stirred and mixed. After being fully stirred and mixed, the nitrification inhibitor is discharged into a drying device and heated and dried to prepare the synergistic nitrogen fertilizer.

[0059] The finished product of the synergistic nitrogen fertilizer prepared in the above manner has good quality, can inhibit the activity of nitrifying bacteria in the soil, thereby slowing down the process of converting ammonium nitrogen into nitrate nitrogen, improving the utilization rate of nitrogen fertilizer and reducing nitrogen loss; and the synergistic nitrogen fertilizer prepared in the above manner has good mixing effect, and there is less dust in the production workshop and the storage workshop.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A preparation process of a synergistic fertilizer, It is characterized in that The steps include: S1. Raw material preparation: selecting a synergist in a powder state and a fertilizer in a granular state, and preparing the synergist in a powder state into a synergist spray solution according to a predetermined ratio; S2, spraying and mixing, controlling the fertilizer in a granular state to move in a directional manner along a predetermined trajectory, and during the movement, spraying the synergist spraying solution prepared in step S1 evenly on the surface of the fertilizer moving in a directional manner to obtain a synergistic fertilizer; S3, stirring and mixing, mechanically mixing the synergistic fertilizer obtained in step S2 by a mechanical stirring device to further improve the mixing effect between the synergist spray solution and the fertilizer; S4, drying and curing, the synergistic fertilizer that has been stirred and mixed in step S3 is discharged into a drying device, and the synergistic fertilizer is heated and dried during the process of directional movement in the drying device; The fertilizer is sprayed and mixed, stirred and mixed, and dried and solidified in sequence under the action of gravity on the inclined feeding path, and a synergistic fertilizer is prepared after drying and solidification.

2. A preparation device for enhanced fertilizer, used in the preparation process for enhanced fertilizer according to claim 1, comprising a mounting base (100), a drying device (500) and a feeding device (200) are mounted on the upper end of the mounting base (100), a mixing device is mounted between the feeding device (200) and the drying device (500), Features: The mixing device comprises a spray mixing device (300) and a stirring mixing device (400) which are arranged in sequence. The synergist spray solution is sprayed onto the surface of the fertilizer through the spray mixing device (300). The spray mixing device (300) comprises a spray mixing clamp (310) which is arranged obliquely. A spray mixing channel (311) is formed inside the spray mixing clamp (310) for the fertilizer to pass through. A spray mixing assembly (311) is installed on the path of the spray mixing channel (311). 330); the lower end of the stirring and mixing device (400) is connected to the drying device (500), and the upper end of the spray mixing device (300) is connected to the feeding device (200); the spray mixing device (300), the stirring and mixing device (400) and the drying device (500) are located on an inclined feeding path, and the fertilizer passes through the spray mixing device (300), the stirring and mixing device (400) and the drying device (500) in sequence under the action of gravity to prepare a synergistic fertilizer.

3. The preparation device of the synergistic fertilizer according to claim 2, It is characterized in that A dispersion device (320) is also installed on the path of the spray mixing channel (311), and the dispersion device (320) is located between the spray mixing assembly (330) and the feeding device (200). A pumping device (340) is installed between the lower end of the dispersion device (320) and the lower end of the spray mixing assembly (330).

4. The preparation device of the synergistic fertilizer according to claim 3, It is characterized in that The dispersion device (320) comprises a hollow dispersion body (322), an exhaust opening (321) is installed at the upper end of the dispersion body (322), a sinking area (323) is formed below the inner wall of the dispersion body (322), and the first end of the pumping device (340) is connected to the sinking area (323).

5. The preparation device of the synergistic fertilizer according to claim 4, It is characterized in that The spray mixing clamp (310) includes a feed end (3101) located close to the feed device (200) and a discharge end (3102) located away from the feed device (200), the lateral dimension of the feed end (3101) is smaller than the lateral dimension of the discharge end (3102), and a dispersion air nozzle connected to the pumping device (340) is installed on the inner wall of the dispersion device (320), and the dispersion air nozzle is located in the middle position and inclined toward the outside.

6. The preparation device of the synergistic fertilizer according to claim 3, It is characterized in that The spray mixing assembly (330) comprises a hollow spray mixing body (332), a spray assembly (331) is installed at the upper end of the spray mixing body (332), and an arc-shaped lifting assembly (333) is installed at the lower end of the spray mixing body (332), and the lifting assembly (333) is opposite to the spray assembly (331).

7. The preparation device of the synergistic fertilizer according to claim 6, It is characterized in that The lifting assembly (333) includes a lifting drum, the surface of which is provided with filter openings arranged in an array, a power shaft (334) is fixed to the side wall of the lifting drum, and the pumping device (340) is connected to the interior of the lifting drum. The synergist spray solution and particulate matter remaining in the lifting drum are directionally pumped into the dispersion device (320) through the pumping device (340).

8. The preparation device of the synergistic fertilizer according to claim 2, It is characterized in that The stirring and mixing device (400) comprises a stirring and mixing body (410), the lower end of which is connected to a drying device (500) via a conducting pipe (430), and a stirring and mixing component (420) is also installed on the inner wall of the stirring and mixing body (410), and the stirring and mixing component (420) is located on an inclined material discharge path.

9. The preparation device of the synergistic fertilizer according to claim 8, It is characterized in that The stirring and mixing assembly (420) comprises a stirring and mixing shaft and stirring and mixing blades fixed to the side wall of the stirring and mixing shaft. The stirring and mixing assembly (420) is arranged in at least two groups at intervals, and the extending direction of the stirring and mixing assembly (420) intersects with the spray mixing device (300).

10. Application of a preparation process for enhanced fertilizer, It is characterized in that Using the preparation process of the synergistic fertilizer described in claim 1, the nitrification inhibitor is prepared into a nitrification inhibitor solution by mixing granular nitrogen fertilizer and powdered nitrification inhibitor according to the mass ratio; the nitrification inhibitor solution is evenly sprayed on the surface of the granular nitrogen fertilizer in the process of controlling the directional movement of the granular nitrogen fertilizer, and the nitrogen fertilizer with the nitrification inhibitor solution sprayed on the surface is stirred and mixed, and after sufficient stirring and mixing, it is discharged into a drying equipment and heated and dried to prepare a synergistic nitrogen fertilizer.

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