An anti-caking agent spraying system for fertilizer production

Abstract

The utility model discloses a kind of anticaking agent spraying systems for fertilizer production, including several atomizing nozzles, several atomizing nozzles are circularly distributed in the falling space of fertilizer, and uniform atomization is carried out on fertilizer;The top of the atomizing nozzle is equipped with first liquid inlet part and second liquid inlet part, first liquid inlet part is equipped with first liquid inlet head inside, second liquid inlet part is equipped with second liquid inlet head inside, premixing cavity is set up in the left end inside atomizing nozzle, compressed air passage is set up in the right end inside atomizing nozzle, and premixing cavity is communicated with compressed air passage.The utility model has the advantages of large flow spraying, solves the atomizing nozzle of the anticaking agent spraying system of existing in the process of using, difficult to solve the problem of uneven atomization and pressure loss under the demand of large flow.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer production technology, specifically to an anti-caking agent spraying system for fertilizer production. Background Technology

[0002] Anti-caking agent spraying systems are a key post-processing device in fertilizer production. They are mainly used to prevent solid fertilizers from caking during storage and transportation due to moisture absorption, pressure, or temperature changes. After solid fertilizers are produced and before they are packaged or stored, they are sprayed with an anti-caking agent. Spraying the fertilizer surface with the anti-caking agent reduces the adhesion between fertilizer particles and isolates moisture, thereby effectively preventing the fertilizer from sticking together into large clumps. After spraying, the fertilizer surface is smoother and has better flowability, which facilitates subsequent transportation, packaging, and application.

[0003] The anti-caking agent spraying system mainly includes several atomizing nozzles. A delivery pump delivers liquid anti-caking agent from the anti-caking agent storage tank to the nozzles, while an air pump delivers compressed air to the nozzles. The compressed air and liquid anti-caking agent are mixed and finally sprayed out through the atomizing nozzles, forming a uniform mist sprayed onto the surface of the flowing solid fertilizer. During the movement, the fertilizer comes into full contact with the droplets, and its surface is uniformly coated with a very thin anti-caking agent film.

[0004] Existing anti-caking agent spraying systems struggle to address uneven atomization and pressure loss issues under high flow rate requirements. When processing large quantities of fertilizer, the total flow rate of anti-caking agent required is also substantial. If only one inlet channel is used, either extremely high liquid pressure or a very large channel orifice is needed to deliver such a large flow rate. High pressure increases the burden on pumps and pipelines, leading to high energy consumption and safety hazards. Large-diameter outlet channels also struggle to produce a fine and uniform atomization effect. Utility Model Content

[0005] The purpose of this invention is to provide an anti-caking agent spraying system for fertilizer production, which has the advantage of high-flow-rate spraying and solves the problems of uneven atomization and pressure loss in the atomizing nozzles of existing anti-caking agent spraying systems under high-flow-rate requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-caking agent spraying system for fertilizer production, comprising a plurality of atomizing nozzles, which are arranged in a circular pattern around the fertilizer falling space to uniformly atomize and spray the fertilizer;

[0007] The atomizing nozzle is provided with a first liquid inlet and a second liquid inlet at the top. A first liquid inlet head is installed inside the first liquid inlet and a second liquid inlet head is installed inside the second liquid inlet. A premixing chamber is opened at the left end of the atomizing nozzle and a compressed air channel is opened at the right end of the atomizing nozzle. The premixing chamber is connected to the compressed air channel.

[0008] The atomizing nozzle is also provided with a first conveying channel and a second conveying channel. One end of the first conveying channel is connected to the first liquid inlet head, and the other end of the first conveying channel is connected to the inner cavity of the premixing chamber. The second conveying channel is "L" shaped, with one end of the second conveying channel connected to the bottom of the second liquid inlet head, and the other end of the second conveying channel connected to the right side of the inner cavity of the compressed air channel.

[0009] As a preferred embodiment of the anti-caking agent spraying system for fertilizer production according to this utility model, an air inlet is installed at the left end of the atomizing nozzle, and the air inlet is connected to the premixing chamber.

[0010] As a preferred embodiment of the anti-caking agent spraying system for fertilizer production according to this utility model, the left end of the air inlet head is connected to an air inlet pipe, the left end of the air inlet pipe is connected to a flexible hose, and the air inlet end of the flexible hose is connected to an air pump.

[0011] As a preferred embodiment of the anti-caking agent spraying system for fertilizer production according to this utility model, a nozzle is installed at the right end of the atomizing nozzle, and a threaded sleeve is fitted on the surface of the nozzle, with the threaded sleeve threadedly installed on the surface of the atomizing nozzle.

[0012] As a preferred embodiment of the anti-caking agent spraying system for fertilizer production according to this utility model, an atomizing nozzle core is fixedly installed at the right end of the spray head.

[0013] As a preferred embodiment of the anti-caking agent spraying system for fertilizer production according to this utility model, a central needle is fixedly installed in the premixing chamber. One end of the central needle is provided with a needle tip, which penetrates the compressed air channel and enters the nozzle. The central needle guides the high-speed airflow.

[0014] As a preferred embodiment of the anti-caking agent spraying system for fertilizer production according to this utility model, the first liquid inlet head is connected to a first connecting pipe at its inlet end, and the second liquid inlet head is connected to a second connecting pipe at its inlet end.

[0015] As a preferred embodiment of the anti-caking agent spraying system for fertilizer production according to this utility model, the inlet ends of the first connecting pipe and the second connecting pipe are connected to an annular pipe.

[0016] As a preferred embodiment of the anti-caking agent spraying system for fertilizer production according to this utility model, the surface of the annular pipe is connected to an infusion pipe, the infusion pipe is connected to an infusion pump, and the infusion pump is connected to an anti-caking agent liquid storage tank.

[0017] As a preferred embodiment of the anti-caking agent spraying system for fertilizer production according to this utility model, the surface of the atomizing nozzle is fixedly connected to a mounting bracket, and an installation tube is fixedly installed inside the mounting bracket.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model achieves the split supply and tiered mixing of anti-caking agent liquid by setting up a dual liquid inlet channel structure and dual delivery path. One liquid is initially mixed with compressed air in the premixing chamber to form a gas-liquid two-phase flow, which improves the atomization start-up efficiency. The other liquid is injected in the middle and later stages of the compressed air channel to avoid premature mixing that may cause blockage or uneven atomization. This design not only enhances the system's adaptability to anti-caking agents of different viscosities or compositions, but also optimizes the mixing process, ensures continuous and stable atomization, significantly improves atomization fineness and uniformity, effectively reduces droplet aggregation, and improves the utilization rate of anti-caking agent.

[0020] 2. This utility model employs a layout of multiple atomizing nozzles arranged in a circular ring around the fertilizer falling space, combined with a central guiding and rectifying effect on the high-speed airflow, making the gas-liquid mixture more concentrated and stable. This, along with the atomizing nozzle core, achieves efficient atomization, and the fine mist of anti-caking agent evenly coats the falling fertilizer from all sides, ensuring no dead corners and greatly improving the uniformity and integrity of the spray. Simultaneously, the distribution structure of the annular pipe and multiple connecting pipes ensures balanced liquid supply to each nozzle. The mounting bracket and mounting pipe facilitate system integration and maintenance. The overall structural design is reasonable, the operation is reliable, effectively preventing fertilizer clumping and improving product quality and storage performance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This is a schematic diagram of the installation state of this utility model;

[0024] Figure 4 This is a schematic diagram of the circular array state of this utility model.

[0025] In the diagram: 1. Atomizing nozzle; 2. Second liquid inlet; 3. Second liquid inlet head; 4. First liquid inlet head; 5. Air inlet pipe; 6. Air inlet head; 7. First liquid inlet; 8. Mounting bracket; 9. Mounting pipe; 10. Threaded sleeve; 11. Nozzle; 12. Atomizing nozzle core; 13. First delivery channel; 14. Second delivery channel; 15. Compressed air channel; 16. Center needle; 17. Premixing chamber; 18. Hose; 19. First connecting pipe; 20. Second connecting pipe; 21. Ring pipe; 22. Infusion pipe. Detailed Implementation

[0026] Please see Figures 1-4 A spray system for an anti-caking agent used in fertilizer production includes several atomizing nozzles 1, which are arranged in a circular pattern around the fertilizer drop space to uniformly atomize and spray the fertilizer.

[0027] Furthermore, the top of the atomizing nozzle 1 is provided with a first liquid inlet 7 and a second liquid inlet 2. The first liquid inlet 7 is equipped with a first liquid inlet head 4, and the second liquid inlet 2 is equipped with a second liquid inlet head 3. A premixing chamber 17 is opened at the left end of the atomizing nozzle 1, and a compressed air channel 15 is opened at the right end of the atomizing nozzle 1. The premixing chamber 17 is connected to the compressed air channel 15.

[0028] Furthermore, the atomizing nozzle 1 is also provided with a first conveying channel 13 and a second conveying channel 14. One end of the first conveying channel 13 is connected to the first liquid inlet head 4, and the other end of the first conveying channel 13 is connected to the inner cavity of the premixing chamber 17. The second conveying channel 14 is "L" shaped, with one end of the second conveying channel 14 connected to the bottom of the second liquid inlet head 3, and the other end of the second conveying channel 14 connected to the right side of the inner cavity of the compressed air channel 15.

[0029] Furthermore, an air inlet 6 is installed at the left end of the atomizing nozzle 1, and the air inlet 6 is connected to the premixing chamber 17.

[0030] Furthermore, the left end of the air intake head 6 is connected to the air intake pipe 5, the left end of the air intake pipe 5 is connected to the hose 18, and the air intake end of the hose 18 is connected to the air pump.

[0031] Furthermore, a nozzle 11 is installed on the right end of the atomizing nozzle 1, and a threaded sleeve 10 is fitted on the surface of the nozzle 11. The threaded sleeve 10 is threadedly installed on the surface of the atomizing nozzle 1.

[0032] Furthermore, an atomizing nozzle core 12 is fixedly installed on the right end of the nozzle 11.

[0033] Furthermore, a center needle 16 is fixedly installed inside the premixing chamber 17. One end of the center needle 16 is provided with a needle tip, which penetrates the compressed air channel 15 and enters the nozzle 11. The center needle 16 guides the high-speed airflow.

[0034] Furthermore, the inlet end of the first liquid inlet head 4 is connected to the first connecting pipe 19, and the inlet end of the second liquid inlet head 3 is connected to the second connecting pipe 20.

[0035] Furthermore, the inlet ends of the first connecting pipe 19 and the second connecting pipe 20 are connected to an annular pipe 21.

[0036] Furthermore, an infusion tube 22 is connected to the surface of the annular tube 21, the infusion tube 22 is connected to the infusion pump, and the infusion pump is connected to the anti-caking agent storage tank.

[0037] Furthermore, a mounting bracket 8 is fixedly connected to the surface of the atomizing nozzle 1, and an installation tube 9 is fixedly installed inside the mounting bracket 8.

[0038] During the spraying of fertilizer, the anti-caking agent liquid is drawn from the anti-caking agent liquid storage tank by the infusion pump and transported to the annular pipe 21 through the infusion pipe 22. The annular pipe 21 evenly distributes the liquid to multiple branches, which are then transported to the inlet end of each atomizing nozzle 1 through the first connecting pipe 19 and the second connecting pipe 20, respectively.

[0039] Anti-caking agent liquid enters the atomizing nozzle 1 through the first inlet head 4 and the second inlet head 3. One stream of liquid is delivered to the premixing chamber 17 via the first delivery channel 13, while the other stream is delivered to the right inner cavity of the compressed air channel 15 via the "L"-shaped second delivery channel 14. Compressed air generated by the air pump enters the air inlet pipe 5 through the hose 18, and then enters the premixing chamber 17 at the left end of the atomizing nozzle 1 via the air inlet head 6. In the premixing chamber 17, the anti-caking agent liquid from the first delivery channel 13 and the compressed air from the air inlet head 6 are initially mixed to form a gas-liquid two-phase flow. This mixed fluid then enters the compressed air channel 15. In the compressed air channel 15, the liquid from the second delivery channel 14... Another anti-caking agent liquid is added, and the central needle 16 is fixed in the premixing chamber 17. Its needle tip extends into the nozzle 11, which guides and rectifies the high-speed gas-liquid mixture, ensuring stable and concentrated airflow and improving atomization efficiency. After thorough mixing and acceleration, the gas-liquid mixture finally passes through the atomizing nozzle core 12 installed at the right end of the atomizing nozzle 1. The tiny spray holes on the atomizing nozzle core 12 completely break up the liquid, forming a fine and uniform mist of anti-caking agent. Multiple atomizing nozzles 1 are arranged in a circular pattern around the fertilizer falling space. The mist of anti-caking agent sprayed by all atomizing nozzles 1 at the same time evenly covers the falling fertilizer from all sides, effectively preventing the fertilizer from caking during subsequent storage or transportation.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spray system for an anti-caking agent in fertilizer production, comprising a plurality of atomizing nozzles (1), characterized in that: Several atomizing nozzles (1) are arranged in a circular pattern in the fertilizer falling space to evenly atomize and spray the fertilizer; The atomizing nozzle (1) is provided with a first liquid inlet (7) and a second liquid inlet (2) at the top. A first liquid inlet head (4) is installed inside the first liquid inlet (7), and a second liquid inlet head (3) is installed inside the second liquid inlet (2). A premixing chamber (17) is opened at the left end of the atomizing nozzle (1), and a compressed air channel (15) is opened at the right end of the atomizing nozzle (1). The premixing chamber (17) is connected to the compressed air channel (15). The atomizing nozzle (1) is also provided with a first conveying channel (13) and a second conveying channel (14). One end of the first conveying channel (13) is connected to the first liquid inlet head (4), and the other end of the first conveying channel (13) is connected to the inner cavity of the premixing chamber (17). The second conveying channel (14) is "L" shaped. One end of the second conveying channel (14) is connected to the bottom of the second liquid inlet head (3), and the other end of the second conveying channel (14) is connected to the right side of the inner cavity of the compressed air channel (15).

2. The anti-caking agent spraying system for fertilizer production according to claim 1, characterized in that: The atomizing nozzle (1) is equipped with an air inlet (6) at its left end, and the air inlet (6) is connected to the premixing chamber (17).

3. The anti-caking agent spraying system for fertilizer production according to claim 2, characterized in that: The left end of the air inlet head (6) is connected to the air inlet pipe (5), the left end of the air inlet pipe (5) is connected to the hose (18), and the air inlet end of the hose (18) is connected to the air pump.

4. The anti-caking agent spraying system for fertilizer production according to claim 1, characterized in that: The atomizing nozzle (1) is equipped with a nozzle (11) on the right end. A threaded sleeve (10) is fitted on the surface of the nozzle (11). The threaded sleeve (10) is threaded onto the surface of the atomizing nozzle (1).

5. The anti-caking agent spraying system for fertilizer production according to claim 4, characterized in that: The nozzle (11) is fixedly installed with an atomizing nozzle core (12) on the right end.

6. The anti-caking agent spraying system for fertilizer production according to claim 5, characterized in that: The premixing chamber (17) is fixedly installed with a central needle (16). One end of the central needle (16) is provided with a needle tip. The needle tip passes through the compressed air channel (15) and enters the nozzle (11). The central needle (16) guides the high-speed airflow.

7. The anti-caking agent spraying system for fertilizer production according to claim 1, characterized in that: The first liquid inlet head (4) has a first connecting pipe (19) connected to its liquid inlet end, and the second liquid inlet head (3) has a second connecting pipe (20) connected to its liquid inlet end.

8. The anti-caking agent spraying system for fertilizer production according to claim 7, characterized in that: The first connecting pipe (19) and the second connecting pipe (20) are connected to an annular pipe (21) at their liquid inlet ends.

9. A spray system for an anti-caking agent in fertilizer production according to claim 8, characterized in that: The surface of the annular tube (21) is connected to an infusion tube (22), which is connected to an infusion pump, and the infusion pump is connected to an anti-caking agent storage tank.

10. A spray system for an anti-caking agent in fertilizer production according to claim 1, characterized in that: The surface of the atomizing nozzle (1) is fixedly connected to a mounting bracket (8), and an installation tube (9) is fixedly installed inside the mounting bracket (8).

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