An injection device adapted for producing popcorn-shaped fertilizers by a disk granulator

Abstract

The present application relates to an injection device adapted for a disc granulator to produce popcorn-shaped fertilizers, belonging to the technical field of fertilizer granulation. It includes a nozzle body, an atomization assembly and a blowing assembly; an atomization chamber is provided inside the nozzle body, an injection hole is provided at one end of the nozzle body, and a blowing hole is provided at the other end; a liquid supply hole and a gas supply hole are provided on the nozzle body; a spiral liquid hole and a spiral gas hole are provided on the nozzle body, and the two ends of the spiral liquid hole are respectively communicated with the liquid supply hole and the atomization chamber, and the two ends of the spiral gas hole are respectively communicated with the gas supply hole and the atomization chamber; the atomization assembly is arranged in the spiral liquid hole and is used for atomizing the granulation solution; a mist column and a gas column collide in the atomization chamber to form a mist mass; the blowing assembly is arranged on the nozzle body and is used for blowing the mist mass in the atomization chamber out of the injection hole through the blowing hole by means of the air flow in the gas supply hole. The present application has the effect of enabling the granulation solution to be sprayed on the fertilizer particles in a mist state.

Description

Technical Field

[0001] The present application relates to the technical field of fertilizer granulation, and particularly relates to a spraying device adapted for a disc granulator to produce popcorn-shaped fertilizers. Background Art

[0002] In order to make fertilizers easier to absorb and improve fertilizer efficiency, fertilizers are usually made into popcorn-shaped by a disc granulator. During the granulation process of popcorn-shaped fertilizers, it is necessary to spray multiple granulation solutions with different concentrations simultaneously, so that the granulated fertilizer particles can come into contact with multiple granulation solutions with different concentrations at the same time. Under the combined action of different concentration granulation solutions, the fertilizer particles gradually grow unevenly into popcorn-shaped fertilizers.

[0003] The existing granulation solution spraying device includes a liquid guiding pipe and a nozzle. There are multiple liquid guiding pipes and nozzles, and they are in one-to-one correspondence. The nozzle is connected to the end of the liquid guiding pipe. The granulation solution guided and pressurized by the liquid guiding pipe reaches the nozzle. The concentration of the granulation solution flowing in each liquid guiding pipe is inconsistent. The granulation solution impacts on the nozzle. After the impact, the granulation solution changes from a liquid flow column to a mist flow column and is ejected from the spray holes of the nozzle, so that different concentration granulation solutions can be sprayed onto the granulation disc of the disc granulator to assist the fertilizer particles to form popcorn-shaped.

[0004] The atomization degree of the granulation solution during spraying has a significant impact on the growth and formation of fertilizer particles. However, the above-mentioned mist flow column formed by the impact of the liquid flow column on the nozzle has the defect of low atomization degree, and it is easy for the granulation solution to be sprayed in the state of fine water streams or large water droplets, making it difficult for the granulation solution to be sprayed on the fertilizer particles in a mist state. As a result, some fertilizer particles are likely to only come into contact with one concentration of granulation solution, which is not conducive to the uneven growth of fertilizer particles. Summary of the Invention

[0005] In order to enable the granulation solution to be sprayed on the fertilizer particles in a mist state, the present application provides a spraying device adapted for a disc granulator to produce popcorn-shaped fertilizers.

[0006] The spraying device adapted for a disc granulator to produce popcorn-shaped fertilizers provided by the present application adopts the following technical solutions:

[0007] A spraying device adapted for a disc granulator to produce popcorn-shaped fertilizers includes a nozzle body, an atomization assembly, and a blowing assembly;

[0008] An atomization chamber is provided inside the nozzle body. One end of the nozzle body is provided with a spraying surface, and a plurality of spraying holes all communicating with the atomization chamber are opened on the spraying surface. The other end of the nozzle body is provided with a blowing surface, and a blowing hole communicating with the atomization chamber is opened on the blowing surface;

[0009] The nozzle body is provided with a liquid supply hole and an air supply hole. Both the liquid supply hole and the air supply hole are arranged close to the blowing surface. The liquid supply hole is communicated with a liquid inlet pipe for introducing granulation solution, and the air supply hole is communicated with an air inlet pipe for introducing air flow;

[0010] The nozzle body is provided with at least one spiral liquid hole and at least one spiral air hole. One end of the spiral liquid hole is communicated with the liquid supply hole, and the other end is communicated with the atomization chamber. One end of the spiral air hole is communicated with the air supply hole, and the other end is communicated with the atomization chamber;

[0011] At least one set of atomization components is provided and is correspondingly arranged in the spiral liquid holes. The atomization components are used for atomizing the granulation solution when the granulation solution flows in the spiral liquid holes;

[0012] The flow trajectories of all the mist columns flowing into the atomization chamber from the spiral liquid holes and all the air columns flowing into the atomization chamber from the spiral air holes have a common intersection point in the atomization chamber. The mist columns and the air columns are used for colliding at the intersection point to form mist clusters;

[0013] The blowing component is arranged on the blowing surface and is used for blowing the mist clusters in the atomization chamber out of the spraying holes through the air flow in the air supply holes via the blowing holes.

[0014] By adopting the above technical solution, when spraying the granulation solution, the granulation solution is supplied from the liquid inlet pipe to the liquid supply hole, and the granulation solution flows from the liquid supply hole into the spiral liquid hole and spirally flows in the spiral liquid hole. The atomization component atomizes the granulation solution. The spiral liquid hole prolongs the time for the granulation solution to flow from the liquid supply hole to the atomization chamber, so as to improve the atomization degree of the atomization component on the granulation solution, enabling the granulation solution to flow into the atomization chamber in the form of mist columns, and making the granulation solution complete the first atomization before entering the atomization chamber.

[0015] When the granulation solution is introduced into the liquid inlet pipe, air is introduced into the air inlet pipe. The air flows to the air supply hole in the form of an air flow. The air flow flows from the air supply hole into the spiral air hole and spirally flows in the spiral air hole. The air flow flows from the spiral air hole into the atomization chamber in the form of an air column. Since the flow trajectories of the two mist columns and the two air columns in the atomization chamber have a common intersection point, the two mist columns and the two air columns can collide at the intersection point to form mist clusters, enabling the granulation solution to complete the second atomization in the atomization chamber.

[0016] The blowing component can blow the mist clusters in the atomization chamber out of the spraying holes through the air flow in the air supply holes via the blowing holes. On the first hand, the blowing component blows the mist clusters without an additional air source. On the second hand, the blowing component can drive the mist clusters to spray out of the atomization chamber. On the third hand, when the mist clusters are ejected from the spraying holes under the drive of the blowing component, they can complete the third atomization by means of collision.

[0017] During the spraying process, the granulation solution can be atomized three times in sequence within the spiral liquid holes, the atomization cavity, and the spraying holes, improving the atomization degree of the granulation solution and making it difficult for the granulation solution to converge into small water streams or large water droplets during the spraying process. As a result, the granulation solution can be sprayed onto the fertilizer particles in a mist state. With the cooperation of multiple spraying devices, the fertilizer particles can grow unevenly into a popcorn shape.

[0018] Optionally, the atomization assembly includes a plurality of atomization plates arranged along the spiral direction of the spiral liquid holes. The atomization plates are provided with a plurality of atomization holes, and from the end of the spiral liquid hole close to the liquid supply hole to the end of the spiral liquid hole close to the atomization cavity, the sizes of the atomization holes on the plurality of atomization plates gradually decrease.

[0019] By adopting the above technical solution, when the granulation solution flows in the spiral liquid holes, it can flow through the atomization plates one by one. Each time the granulation solution flows through an atomization plate, it will impact on the atomization plate for atomization. Since the diameters of the atomization holes on the plurality of atomization plates gradually decrease, the atomization degree of the granulation solution can be gradually improved, so that the granulation solution can be fully atomized before flowing into the atomization cavity.

[0020] Optionally, the blowing assembly includes a blowing box and a blowing air pipe. One side of the blowing box is open and is connected to the blowing surface. One end of the blowing air pipe is communicated with the air supply hole, and the other end is communicated with the blowing box.

[0021] By adopting the above technical solution, the air supply hole and the blowing box are connected through the blowing air pipe, so that the air flow in the air supply hole can flow into the blowing box in addition to flowing into the spiral air holes. Thus, the air flow in the air supply hole can be diverted into the blowing box. The air flow in the blowing box can blow the mist group out of the spraying hole through the blowing holes, and further, the spraying of the mist group can utilize the air flow in the air supply hole without additionally installing an air source.

[0022] Optionally, a swirling assembly is provided on the nozzle body. The swirling assembly includes a first swirling strip and a second swirling strip, and at least one set of the first swirling strip and the second swirling strip is provided;

[0023] At least one set of the first swirling strips is correspondingly arranged in at least one of the spiral liquid holes. The number of each set of the first swirling strips is at least three. One side of all the first swirling strips in each set is connected together in a divergent shape, and the other side of all the first swirling strips in each set is connected to the side wall of the spiral liquid hole. The first swirling strips are arranged along the spiral direction of the spiral liquid hole and are spiral along the spiral direction of the spiral liquid hole;

[0024] At least one set of second swirl bars is correspondingly arranged in at least one spiral air hole. The number of second swirl bars in each set is at least three. One side of all the second swirl bars in each set is connected together in a divergent shape, and the other side of all the second swirl bars in each set is connected to the side wall of the spiral air hole. The second swirl bars are arranged along the spiral direction of the spiral air hole and are spiral along the spiral direction of the spiral air hole.

[0025] The spiral direction of the first swirl bar in the spiral liquid hole is opposite to the spiral direction of the second swirl bar in the spiral air hole.

[0026] By adopting the above technical solution, the three first swirl bars enable the granulation solution flowing in the spiral liquid hole to form three spiral flow mist columns, and the three second swirl bars enable the air flow flowing in the spiral air hole to form three spiral flow air columns. Since the spiral direction of the first swirl bar in the spiral liquid hole is opposite to the spiral direction of the second swirl bar in the spiral air hole, the rotation directions of the three mist columns are opposite to the rotation directions of the three air columns. When the three mist columns with opposite rotation directions collide with the three air columns, a stronger impact effect can be caused, thereby further improving the impact atomization effect of the mist columns and the air columns.

[0027] Optionally, both the spraying surface and the blowing surface are spherical, and the centers of the spheres of the spraying surface and the blowing surface coincide. The intersection point of the mist column and the air column in the atomization chamber is located at the center of the sphere of the spraying surface, and the opening direction of the spraying hole is consistent with the diameter direction of the spraying surface.

[0028] The blowing holes include a first blowing hole and a second blowing hole. The first blowing hole is opened at the center position of the blowing surface, and the opening direction is consistent with the diameter direction of the blowing surface. A plurality of second blowing holes are arranged around the first blowing hole and are all opened at the edge position of the blowing surface, and the opening direction of the second blowing hole is consistent with the diameter direction of the blowing surface.

[0029] An adjusting component is arranged in the blowing box, and the adjusting component is used to adjust the connection between the blowing box and the first blowing hole or adjust the connection between the blowing box and any one of the second blowing holes.

[0030] By adopting the above technical solution, when the adjusting component adjusts the connection between the blowing box and the first blowing hole, since the first blowing hole is located at the center position of the blowing surface, the air flow in the blowing box can blow the mist mass forward, enabling the mist mass to diffuse and flow to all the spraying holes, so that the spraying device can perform overall spraying; when the adjusting component adjusts the connection between the blowing box and any one of the second blowing holes, since the second blowing hole is located at the edge position of the blowing surface, the air flow in the blowing box can blow the mist mass obliquely, enabling the mist mass to concentrate and flow to some of the spraying holes in the area directly opposite to the second blowing hole, so that the spraying device can perform local spraying. Thus, the spraying device can not only perform overall spraying but also perform local spraying on some areas of the granulation disc.

[0031] Optionally, the adjustment assembly includes an adjustment block and an adjustment plate;

[0032] The adjusting block is fitted on the blowing surface and is rotatably connected to the nozzle body. The adjusting block is provided with a first adjusting hole and a second adjusting hole. The first adjusting hole is used to communicate with the first blowing hole, and the second adjusting hole is used to communicate with any one of the second blowing holes.

[0033] The adjustment plate is slidably arranged in an adjustment slot provided on the blowing surface, and the sliding adjustment plate can close the first blowing hole;

[0034] The adjusting plate is connected with an adjusting slider, which is slidably arranged in an annular wave groove opened on one side of the adjusting block close to the blowing surface;

[0035] When the adjusting slider slides to the trough position of the wave groove, the adjusting plate opens the first blowing hole, so that the first adjusting hole is connected with the first blowing hole, and the second adjusting hole is directly opposite to the blowing surface;

[0036] When the adjusting slider slides to the wave crest position of the wave groove, the adjusting plate closes the first blowing hole, so that the first adjusting hole is opposite to the adjusting plate, and the second adjusting hole is in communication with one of the second blowing holes.

[0037] By adopting the above technical solution, when the injection mode of the injection device is switched, the adjustment block is rotated, and under the push of the wave groove wall, the adjustment slider can drive the adjustment plate to slide in the adjustment slide groove. When the adjustment slider slides to the trough position of the wave groove, the wave groove drives the adjustment plate to open the first blowing hole, so that the first adjustment hole can be connected with the first blowing hole, and the second adjustment hole is closed through the blowing surface, so that the airflow in the blowing box can flow into the first blowing hole; when the adjustment slider slides to the peak position of the wave groove, the wave groove drives the adjustment plate to close the first blowing hole, and the first adjustment hole is closed through the adjustment plate. At this time, the second adjustment hole is just opposite to one of the second blowing holes, so that the airflow in the blowing box can flow into the second blowing hole, so that by rotating the adjustment block, the airflow in the blowing box can enter the first blowing hole or the second blowing hole.

[0038] Optionally, a rubber layer is connected to the side wall of the adjustment block, the rubber layer abuts against the inner wall of the blow box, a knob is rotatably connected to the outer wall of the blow box, and a clearance hole is opened on the side wall of the blow box for the knob to abut against the rubber layer.

[0039] By adopting the above technical solution, when the adjusting block needs to be rotated, the adjusting block abuts against the knob through the rubber layer, thereby increasing the friction between the side wall of the adjusting block and the side wall of the knob. By turning the knob, the side wall of the knob can drive the adjusting block to rotate, thereby facilitating the rotation of the adjusting block.

[0040] Optionally, a protective component is provided on the nozzle body, and the protective component includes a protective shell. The protective shell is spherical, and at least two protective shells are provided around the central axis direction of the spraying surface. The protective shell is connected to a hinge shaft, which is rotatably connected to the nozzle body. All the protective shells are used to be spliced ​​into a complete hemispherical shape for fitting on the spraying surface.

[0041] By adopting the above technical solution, after stopping spraying the granulation solution, the hinge shaft is rotated, and the hinge shaft drives the protective shell to rotate, so that the two protective shells are both attached to the injection surface. The protective shell closes the injection hole, so that foreign matter from the outside is difficult to enter the injection hole, thereby making it difficult for foreign matter to block the injection hole.

[0042] Optionally, a gear is connected to the hinge shaft, the gear is meshed with a rack, the rack is slidably connected to the nozzle body, and when the blowing air pipe blows air into the blowing box, the rack drives the gear to turn the protective shell away from the injection surface.

[0043] By adopting the above technical solution, when the blowing air pipe blows air into the blowing box, the injection hole needs to be opened to allow the mist granulation solution to be sprayed out. At this time, the sliding rack can drive the gear to rotate so that the protective shell is turned away from the injection surface, thereby facilitating driving the protective shell to turn away from the injection surface when the granulation solution needs to be sprayed.

[0044] Optionally, the rack is connected to a transmission plate, a driving groove is provided on the transmission plate, the driving groove and the sliding direction of the rack are set at an angle, a driving slider is slidably arranged in the driving groove, the driving slider is connected to a sliding rod, the sliding rod is slidably penetrated on the side wall of the blowing box, one end of the sliding rod located in the blowing box is connected to a closing shell, the closing shell is made of magnetic material, and is slidably arranged on the blowing box, the closing shells corresponding to all protective shells are used to magnetically attract each other in the blowing box to form a complete conical closing shell, the conical closing shell is used to close the connecting position between the blowing air pipe and the blowing box, when the closing shell slides away from the connecting position between the blowing air pipe and the blowing box, the driving slider drives the transmission plate to slide the rack, and the rack drives the gear to turn the protective shell away from the injection surface.

[0045] By adopting the above technical solution, when the blowing air pipe blows air into the blowing box, the airflow can drive the two closed shells to slide in the direction away from each other, and the closed shell drives the sliding rod and the driving slider to slide, and the driving slider slides in the driving groove, and the driving slider drives the rack to slide with the help of the groove wall of the driving groove, so that the rack drives the gear to rotate, so that the opening timing of the protective shell can be adapted to the timing of the blowing air pipe blowing air into the blowing box, and the power for opening the protective shell can be achieved by the airflow blown into the blowing box by the blowing air pipe.

[0046] In summary, the present application includes at least one of the following beneficial technical effects:

[0047] 1. The granulation solution collides with the atomization plate in the spiral liquid hole for the first atomization. The atomized mist flow column collides with the air flow column in the atomization chamber for the second atomization. The atomized mist mass is ejected from the ejection hole under the action of the air flow blown out from the blowing hole, and the third atomization is carried out, thereby improving the atomization degree of the granulation solution and enabling the granulation solution to be sprayed on the fertilizer particles in a mist state.

[0048] 2. By setting the first swirl strip and the second swirl strip, the collision atomization effect of the mist flow column and the air flow column is improved.

[0049] 3. By setting the adjusting block, the adjusting plate and the adjusting slider, and by opening the first adjusting hole, the second adjusting hole and the wave groove on the adjusting block, the spraying device can realize the switching between overall spraying and local spraying.

[0050] 4. By setting the protective shell, the hinge shaft, the gear, the rack, the transmission plate, the driving slider, the slide rod and the closed shell, the ejection hole can be protected when the granulation solution stops being sprayed. Description of the Drawings

[0051] Figure 1 is a schematic structural view of an embodiment of the present application;

[0052] Figure 2 is a schematic structural view of the atomization chamber, the ejection hole, the blowing hole, the liquid supply hole, the air supply hole, the spiral liquid hole and the spiral air hole;

[0053] Figure 3 is Figure 2 an enlarged view of part A in

[0054] Figure 4 is Figure 2 an enlarged view of part B in

[0055] Figure 5 is an exploded view of the adjusting assembly;

[0056] Figure 6 is a schematic structural view of the wave groove;

[0057] Figure 7 is an exploded view of the driving slider.

[0058] Description of the Reference Numerals:

[0059] 1. Nozzle body; 11. Atomizing chamber; 12. Injection surface; 121. Injection hole; 13. Blowing surface; 131. Blowing hole; 132. First blowing hole; 133. Second blowing hole; 14. Liquid supply hole; 141. Liquid inlet pipe; 15. Air supply hole; 151. Air inlet pipe; 16. Spiral liquid hole; 17. Spiral air hole; 18. Adjustment slide; 2. Atomizing assembly; 21. Atomizing plate; 22. Atomizing hole; 3. Blowing assembly; 31. Blowing box; 311. Give way hole; 32. Blowing Air pipe; 4. Swirl assembly; 41. First swirl strip; 42. Second swirl strip; 5. Adjustment assembly; 51. Adjustment block; 511. First adjustment hole; 512. Second adjustment hole; 513. Wave groove; 52. Adjustment plate; 53. Adjustment slider; 54. Rubber layer; 55. Knob; 6. Protection assembly; 61. Protection shell; 62. Articulated shaft; 63. Gear; 64. Rack; 65. Transmission plate; 651. Drive groove; 66. Drive slider; 67. Slide rod; 68. Enclosed shell. DETAILED DESCRIPTION

[0060] The following is combined with Figure 1-7 This application is described in further detail.

[0061] The present application discloses a spraying device adapted for a disc granulator to produce popcorn-like fertilizer. Figure 1 and Figure 2 A spraying device suitable for a disc granulator to produce popcorn-like fertilizer comprises a spray head body 1, an atomizing component 2 and a blowing component 3.

[0062] Reference Figure 2 An atomizing chamber 11 is provided inside the nozzle body 1, an injection surface 12 is provided at one end of the nozzle body 1, and a plurality of injection holes 121 connected to the atomizing chamber 11 are provided on the injection surface 12, and a blowing surface 13 is provided at the other end of the nozzle body 1, and a blowing hole 131 connected to the atomizing chamber 11 is provided on the blowing surface 13.

[0063] Reference Figure 1 and Figure 2 A liquid supply hole 14 and an air supply hole 15 are provided on the nozzle body 1. The liquid supply hole 14 and the air supply hole 15 are arranged close to the blowing surface 13. The liquid supply hole 14 and the air supply hole 15 are both in annular shape. The liquid supply hole 14 and the air supply hole 15 are coaxially arranged. The liquid supply hole 14 is connected to a liquid inlet pipe 141 for introducing a granulation solution. The air supply hole 15 is connected to an air inlet pipe 151 for introducing an air flow. The liquid inlet pipe 141 and the air inlet pipe 151 are both fixedly connected to the nozzle body 1.

[0064] Reference Figure 2, two spiral liquid holes 16 and two spiral air holes 17 are formed on the nozzle body 1. One end of the spiral liquid hole 16 is communicated with the liquid supply hole 14, and the other end is communicated with the atomization chamber 11. One end of the spiral air hole 17 is communicated with the air supply hole 15, and the other end is communicated with the atomization chamber 11. The spiral directions of the two spiral liquid holes 16 and the two spiral air holes 17 are the same.

[0065] Two sets of atomization assemblies 2 are provided and are correspondingly arranged in the spiral liquid holes 16. The atomization assembly 2 is used to atomize the granulation solution when it flows in the spiral liquid holes 16. There is a common intersection point in the flow trajectories of the mist columns flowing from the two spiral liquid holes 16 into the atomization chamber 11 and the air columns flowing from the two spiral air holes 17 into the atomization chamber 11. The mist columns and the air columns are used to collide at the intersection point to form mist groups.

[0066] The blowing assembly 3 is arranged on the blowing surface 13 and is used to blow the mist group in the atomization chamber 11 out of the spraying hole 121 through the blowing hole 131 by means of the air flow in the air supply hole 15, so that the granulation solution is sprayed on the fertilizer particles in a mist state from the spraying hole 121.

[0067] When spraying the granulation solution, the granulation solution is supplied from the liquid inlet pipe 141 to the liquid supply hole 14. The granulation solution flows from the liquid supply hole 14 into the spiral liquid hole 16 and spirally flows in the spiral liquid hole 16. The atomization assembly 2 atomizes the granulation solution. The spiral liquid hole 16 prolongs the time for the granulation solution to flow from the liquid supply hole 14 to the atomization chamber 11, so as to improve the atomization degree of the atomization assembly 2 on the granulation solution, so that the granulation solution can flow into the atomization chamber 11 in the form of a mist column, and the granulation solution completes the first atomization before entering the atomization chamber 11.

[0068] When the granulation solution is introduced into the liquid inlet pipe 141, air is introduced into the air inlet pipe 151. The air flows into the air supply hole 15 in the form of an air flow. The air flow flows from the air supply hole 15 into the spiral air hole 17 and spirally flows in the spiral air hole 17. The air flow flows from the spiral air hole 17 into the atomization chamber 11 in the form of an air column. Since there is a common intersection point in the flow trajectories of the two mist columns and the two air columns in the atomization chamber 11, the two mist columns and the two air columns can collide at the intersection point to form a mist group, so that the granulation solution can complete the second atomization in the atomization chamber 11.

[0069] The blowing assembly 3 can blow the mist group in the atomization chamber 11 out of the spraying hole 121 through the blowing hole 131 by means of the air flow in the air supply hole 15. On the first hand, the blowing assembly 3 blows the mist group without an additional air source. On the second hand, the blowing assembly 3 can drive the mist group to spray out of the atomization chamber 11. On the third hand, when the mist group is ejected from the spraying hole 121 under the drive of the blowing assembly 3, it can complete the third atomization by means of collision.

[0070] During the spraying process, the granulation solution can be atomized three times in sequence within the spiral liquid hole 16, within the atomization chamber 11, and at the spraying hole 121, which improves the atomization degree of the granulation solution and makes it difficult for the granulation solution to converge into small water streams or large water droplets during the spraying process. As a result, the granulation solution can be sprayed onto the fertilizer particles in a mist state. With the cooperation of multiple spraying devices, the fertilizer particles can grow unevenly into a popcorn shape.

[0071] Specifically, referring to Figure 3 , the atomization assembly 2 includes multiple atomization plates 21 arranged along the spiral direction of the spiral liquid hole 16. The atomization plates 21 are fixedly connected to the inner wall of the spiral liquid hole 16. A plurality of through atomization holes 22 are formed on the atomization plates 21. The atomization holes 22 are circular, and from the end of the spiral liquid hole 16 close to the liquid supply hole 14 to the end of the spiral liquid hole 16 close to the atomization chamber 11, the diameters of the atomization holes 22 on the multiple atomization plates 21 gradually decrease.

[0072] When the granulation solution flows in the spiral liquid hole 16, it can flow through the atomization plates 21 one by one. Each time the granulation solution flows through the atomization plate 21, it will impact on the atomization plate 21 for atomization. Since the diameters of the atomization holes 22 on the multiple atomization plates 21 gradually decrease, the atomization degree of the granulation solution can be gradually improved, so that the granulation solution can be fully atomized before flowing into the atomization chamber 11.

[0073] Specifically, referring to Figure 1 and Figure 2 , the blowing assembly 3 includes a blowing box 31 and a blowing air pipe 32. One side of the blowing box 31 is open and is fixedly connected to the blowing surface 13. One end of the blowing air pipe 32 is communicated with the air supply hole 15, and the other end is communicated with the blowing box 31.

[0074] By connecting the air supply hole 15 and the blowing box 31 through the blowing air pipe 32, the air flow in the air supply hole 15 can flow into the blowing box 31 in addition to flowing into the spiral air hole 17. Thus, the air flow in the air supply hole 15 can be guided into the blowing box 31. The air flow in the blowing box 31 can blow the mist group out of the spraying hole 121 through the blowing holes 131. Furthermore, the spraying of the mist group can utilize the air flow in the air supply hole 15 without additional air sources.

[0075] Referring to Figure 2 , in order to improve the impact atomization effect of the mist flow column and the air flow column, a swirling assembly 4 is provided on the nozzle body 1. The swirling assembly 4 includes a first swirling strip 41 and a second swirling strip 42, and there are two sets of both the first swirling strip 41 and the second swirling strip 42.

[0076] Referring to Figure 2 and Figure 3, two groups of first swirl bars 41 are correspondingly arranged in two spiral liquid holes 16, the number of each group of first swirl bars 41 is three, one side of all the first swirl bars 41 in each group is fixedly connected together in a divergent shape, the other side of all the first swirl bars 41 in each group is fixedly connected to the side wall of the spiral liquid hole 16, the first swirl bars 41 are fixedly arranged through all the atomizing plates 21, the first swirl bars 41 are arranged along the spiral direction of the spiral liquid hole 16, and the first swirl bars 41 are spiral along the spiral direction of the spiral liquid hole 16.

[0077] Refer to Figure 2 and Figure 4 , two groups of second swirl bars 42 are correspondingly arranged in two spiral air holes 17, the number of each group of second swirl bars 42 is three, one side of all the second swirl bars 42 in each group is fixedly connected together in a divergent shape, the other side of all the second swirl bars 42 in each group is fixedly connected to the side wall of the spiral air hole 17, the second swirl bars 42 are arranged along the spiral direction of the spiral air hole 17, and the second swirl bars 42 are spiral along the spiral direction of the spiral air hole 17.

[0078] Refer to Figure 3 and Figure 4 , in order to further enhance the impact atomization effect of the mist flow column and the air flow column, the spiral direction of the first swirl bars 41 in the spiral liquid hole 16 is opposite to the spiral direction of the second swirl bars 42 in the spiral air hole 17.

[0079] The three first swirl bars 41 enable the granulation solution flowing in the spiral liquid hole 16 to form three spiral mist flow columns, and the three second swirl bars 42 enable the air flow flowing in the spiral air hole 17 to form three spiral air flow columns. Since the spiral direction of the first swirl bars 41 in the spiral liquid hole 16 is opposite to the spiral direction of the second swirl bars 42 in the spiral air hole 17, the rotation directions of the three mist flow columns are opposite to the rotation directions of the three air flow columns. When the three mist flow columns with opposite rotation directions and the three air flow columns collide, a stronger impact effect can be caused, thereby further improving the impact atomization effect of the mist flow column and the air flow column.

[0080] Refer to Figure 5 , in order to enable the spraying device to switch between the overall spraying and local spraying modes, an adjusting component 5 is arranged in the blowing box 31.

[0081] Refer to Figure 2 , the spraying surface 12 and the blowing surface 13 are both spherical, and the centers of the spheres of the spraying surface 12 and the blowing surface 13 coincide. The intersection point of the mist flow column and the air flow column in the atomization cavity 11 is located at the center of the sphere of the spraying surface 12, and the opening direction of the spraying holes 121 is consistent with the diameter direction of the spraying surface 12.

[0082] Refer to Figure 5, the blowing holes 131 include a first blowing hole 132 and a second blowing hole 133. The first blowing hole 132 is opened at the central position of the blowing surface 13, and the opening direction is the same as the diameter direction of the blowing surface 13; a plurality of second blowing holes 133 are arranged around the first blowing hole 132, and all are opened at the edge position of the blowing surface 13. The opening direction of the second blowing hole 133 is the same as the diameter direction of the blowing surface 13.

[0083] The adjusting assembly 5 is used to adjust the communication between the blowing box 31 and the first blowing hole 132 or to adjust the communication between the blowing box 31 and any one of the second blowing holes 133.

[0084] When the adjusting assembly 5 adjusts the communication between the blowing box 31 and the first blowing hole 132, since the first blowing hole 132 is located at the central position of the blowing surface 13, the air flow in the blowing box 31 can blow the fog mass forward, so that the fog mass can diffuse and flow to all the spraying holes 121, so that the spraying device can perform overall spraying; when the adjusting assembly 5 adjusts the communication between the blowing box 31 and any one of the second blowing holes 133, since the second blowing hole 133 is located at the edge position of the blowing surface 13, the air flow in the blowing box 31 can blow the fog mass obliquely, so that the fog mass can concentrate and flow to some of the spraying holes 121 in the area directly opposite to the second blowing hole 133, so that the spraying device can perform local spraying, so that the spraying device can not only perform overall spraying, but also perform local spraying on some areas of the granulating disc.

[0085] Further, referring to Figure 5 , the adjusting assembly 5 includes an adjusting block 51 and an adjusting plate 52.

[0086] One side of the adjusting block 51 is attached to the blowing surface 13 and is rotationally connected to the nozzle body 1 around the central axis of the blowing surface 13. A through first adjusting hole 511 and a second adjusting hole 512 are opened on the adjusting block 51. The first adjusting hole 511 is located at the central position of the adjusting block 51, and the first adjusting hole 511 is used to communicate with the first blowing hole 132. The second adjusting hole 512 is located at the edge position of the adjusting block 51, and the second adjusting hole 512 is used to communicate with any one of the second blowing holes 133.

[0087] Referring to Figure 5 and Figure 6The adjusting plate 52 is slidably disposed in the adjusting slot 18 provided on the blowing surface 13, and the first blowing hole 132 is located on the slot bottom of the adjusting slot 18. The sliding adjusting plate 52 can close the first blowing hole 132. An adjusting slider 53 is fixedly connected to the side of the adjusting plate 52 away from the slot bottom of the adjusting slot 18. The adjusting slider 53 is slidably disposed in the annular wave groove 513 provided on the side of the adjusting block 51 close to the blowing surface 13. When the adjusting block 51 is rotated, the slot wall of the wave groove 513 can push the adjusting slider 53 to slide along the wave groove 513. Under the guide restriction of the adjusting slot 18, the adjusting block 51 can drive the adjusting plate 52 to slide back and forth in the adjusting slot 18.

[0088] When the adjusting slider 53 slides to the trough position of the wave groove 513, the adjusting plate 52 opens the first blowing hole 132, so that the first adjusting hole 511 is connected with the first blowing hole 132, and the second adjusting hole 512 is opposite to the blowing surface 13; when the adjusting slider 53 slides to the crest position of the wave groove 513, the adjusting plate 52 closes the first blowing hole 132, so that the first adjusting hole 511 is opposite to the adjusting plate 52, and the second adjusting hole 512 is in a connected state with one of the second blowing holes 133.

[0089] When switching the spraying mode of the spraying device, the adjusting block 51 is rotated. Under the push of the groove wall of the wave groove 513, the adjusting slider 53 can drive the adjusting plate 52 to slide in the adjusting slide groove 18. When the adjusting slider 53 slides to the trough position of the wave groove 513, the wave groove 513 drives the adjusting plate 52 to open the first blowing hole 132, so that the first adjusting hole 511 can be connected with the first blowing hole 132, and the second adjusting hole 512 is closed through the blowing surface 13, so that the airflow in the blowing box 31 can flow into the first blowing hole 132. hole 132; when the adjusting slider 53 slides to the wave crest position of the wave groove 513, the wave groove 513 drives the adjusting plate 52 to close the first blowing hole 132, and closes the first adjusting hole 511 through the adjusting plate 52. At this time, the second adjusting hole 512 is just opposite to one of the second blowing holes 133, so that the airflow in the blowing box 31 can flow into the second blowing hole 133, so that by rotating the adjusting block 51, the airflow in the blowing box 31 can enter the first blowing hole 132 or the second blowing hole 133.

[0090] Furthermore, refer to Figure 6 A rubber layer 54 is fixedly connected to the side wall of the adjusting block 51, and the rubber layer 54 abuts against the inner wall of the blowing box 31. A knob 55 is rotatably connected to the outer wall of the blowing box 31, and the rotation axis of the knob 55 is parallel to the rotation axis of the adjusting block 51. A clearance hole 311 is opened on the side wall of the blowing box 31, and the clearance hole 311 is for the knob 55 to abut against the rubber layer 54.

[0091] When it is necessary to rotate the adjusting block 51, the adjusting block 51 abuts against the knob 55 through the rubber layer 54, increasing the frictional force between the side wall of the adjusting block 51 and the side wall of the knob 55. By rotating the knob 55, the side wall of the knob 55 can drive the adjusting block 51 to rotate, making it convenient to rotate the adjusting block 51.

[0092] Referring to Figure 2 , in order to prevent the injection holes 121 from being easily blocked by foreign objects, a protective component 6 is provided on the nozzle body 1. The protective component 6 includes a protective shell 61 which is spherical and there are two arranged around the central axis direction of the injection surface 12. The two protective shells 61 are symmetrically arranged. The protective shell 61 is fixedly connected with a hinge shaft 62, and the hinge shaft 62 is rotatably connected to the nozzle body 1. The two protective shells 61 are used to be spliced into a complete hemispherical shape for fitting on the injection surface 12.

[0093] After stopping spraying the granulation solution, rotate the hinge shaft 62. The hinge shaft 62 drives the protective shell 61 to rotate, so that both protective shells 61 are fitted on the injection surface 12. The protective shell 61 closes the injection holes 121, making it difficult for foreign objects in the outside world to enter the injection holes 121, so that the injection holes 121 are not easily blocked by foreign objects.

[0094] Furthermore, referring to Figure 2 , a gear 63 is fixedly connected to the hinge shaft 62. The gear 63 meshes with a rack 64. The rack 64 is slidably connected to the nozzle body 1. When the blowing air pipe 32 blows air into the blowing box 31, the rack 64 drives the gear 63 to turn the protective shell 61 away from the injection surface 12.

[0095] When the blowing air pipe 32 blows air into the blowing box 31, it is necessary to open the injection holes 121 so that the misty granulation solution can be ejected. At this time, sliding the rack 64 can drive the gear 63 to rotate, so that the protective shell 61 turns away from the injection surface 12, making it convenient to drive the protective shell 61 to turn away from the injection surface 12 when it is necessary to inject the granulation solution.

[0096] Even further, referring to Figure 2 and Figure 7 , a transmission plate 65 is fixedly connected to the rack 64. A driving groove 651 is formed on the transmission plate 65. The driving groove 651 is arranged at an angle to the sliding direction of the rack 64. A driving slider 66 is slidably arranged in the driving groove 651. The driving slider 66 is fixedly connected with a sliding rod 67. The sliding rod 67 slidably penetrates through the side wall of the blowing box 31.

[0097] Referring to Figure 2One end of the slide rod 67 located in the blowing box 31 is fixedly connected with a closing shell 68. The closing shell 68 is made of magnetic material and is slidably arranged on the side wall of the blowing box 31 facing the blowing surface 13. The closing shells 68 corresponding to the two protective shells 61 have opposite polarities on the side close to each other. The closing shells 68 corresponding to the two protective shells 61 are used to be magnetically attracted to each other in the blowing box 31 to form a complete conical closing shell. The conical closing shell is used to close the connection position between the blowing air pipe 32 and the blowing box 31.

[0098] Reference Figure 2 and Figure 7 When the blowing air pipe 32 blows air into the blowing box 31, the two closed shells 68 can overcome the magnetic attraction and slide in the direction away from each other; when the closed shell 68 slides away from the connecting position between the blowing air pipe 32 and the blowing box 31, the driving slider 66 drives the transmission plate 65 to slide the rack 64, and the rack 64 drives the gear 63 to turn the protective shell 61 away from the injection surface 12.

[0099] When the blowing air pipe 32 blows air into the blowing box 31, the airflow can drive the two closed shells 68 to slide in the direction away from each other, and the closed shells 68 drive the slide bar 67 and the driving slider 66 to slide. The driving slider 66 slides in the driving groove 651. The driving slider 66 drives the rack 64 to slide with the help of the groove wall of the driving groove 651, so that the rack 64 drives the gear 63 to rotate, so that the opening timing of the protective shell 61 can be adapted to the timing of the blowing air pipe 32 blowing air into the blowing box 31, and the power for opening the protective shell 61 can be assisted by the airflow blown into the blowing box 31 by the blowing air pipe 32.

[0100] The implementation principle of the spray device for producing popcorn-shaped fertilizers suitable for a disc granulator in the embodiment of the present application is as follows: when in use, the granulation solution is supplied into the liquid supply hole 14 through the liquid inlet pipe 141, and the granulation solution in the liquid supply hole 14 flows into the spiral liquid hole 16, and the first atomization is performed under the action of the atomizing plate 21, and the air flow is supplied into the air supply hole 15 through the air inlet pipe 151, and the air flow in the air supply hole 15 flows into the spiral air hole 17, and the mist column and the air flow column collide in the atomizing chamber 11, so that the granulation solution is subjected to the second atomization. Atomization, the air flow in the air supply hole 15 flows into the blowing box 31 from the blowing air pipe 32, and the air flow in the blowing box 31 is blown onto the mist mass through the blowing hole 131, so that the mist mass is sprayed onto the fertilizer particles from the injection hole 121, and the mist mass is atomized for the third time when it is sprayed out from the injection hole 121, thereby improving the atomization degree of the granulation solution through the three-time atomization of the granulation solution, so that the granulation solution can be sprayed on the fertilizer particles in a mist state, and with the cooperation of multiple injection devices, the fertilizer particles can grow unevenly into a popcorn shape.

[0101] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A spraying device adapted for a disc granulator to produce popcorn-like fertilizer, characterized in that: It comprises a nozzle body (1), an atomizing component (2) and a blowing component (3); An atomizing chamber (11) is provided inside the nozzle body (1); an injection surface (12) is provided at one end of the nozzle body (1); a plurality of injection holes (121) are provided on the injection surface (12) and are all connected to the atomizing chamber (11); a blowing surface (13) is provided at the other end of the nozzle body (1); a blowing hole (131) is provided on the blowing surface (13) and is connected to the atomizing chamber (11); The nozzle body (1) is provided with a liquid supply hole (14) and an air supply hole (15), both of which are arranged close to the blowing surface (13), the liquid supply hole (14) is connected to a liquid inlet pipe (141) for introducing a granulation solution, and the air supply hole (15) is connected to an air inlet pipe (151) for introducing an air flow; The nozzle body (1) is provided with at least one spiral liquid hole (16) and at least one spiral air hole (17); one end of the spiral liquid hole (16) is connected to the liquid supply hole (14), and the other end is connected to the atomizing chamber (11); one end of the spiral air hole (17) is connected to the air supply hole (15), and the other end is connected to the atomizing chamber (11); At least one group of atomizing components (2) is provided, and they are arranged in a one-to-one correspondence in the spiral liquid holes (16). The atomizing components (2) are used to atomize the granulation solution when it flows in the spiral liquid holes (16); The flow trajectories of the mist flow columns flowing into the atomizing chamber (11) from all the spiral liquid holes (16) and the air flow columns flowing into the atomizing chamber (11) from all the spiral air holes (17) have a common intersection point in the atomizing chamber (11), and the mist flow column and the air flow column collide at the intersection point to form a mist mass; The blowing assembly (3) is arranged on the blowing surface (13) and is used to blow the mist mass in the atomizing chamber (11) out from the injection hole (121) via the blowing hole (131) with the help of the air flow in the air supply hole (15); The blowing assembly (3) comprises a blowing box (31) and a blowing air pipe (32); one side of the blowing box (31) is open and connected to the blowing surface (13); one end of the blowing air pipe (32) is connected to the air supply hole (15), and the other end is connected to the blowing box (31); The injection surface (12) and the blowing surface (13) are both spherical, and the centers of the injection surface (12) and the blowing surface (13) coincide with each other; the intersection of the mist column and the air flow column in the atomizing chamber (11) is located at the center of the injection surface (12); and the opening direction of the injection hole (121) is consistent with the diameter direction of the injection surface (12); The blowing holes (131) include a first blowing hole (132) and a second blowing hole (133); the first blowing hole (132) is opened at the center of the blowing surface (13), and the opening direction is consistent with the diameter direction of the blowing surface (13); a plurality of second blowing holes (133) are opened around the first blowing hole (132), and all are opened at the edge of the blowing surface (13); and the opening direction of the second blowing holes (133) is consistent with the diameter direction of the blowing surface (13); An adjustment component (5) is arranged in the blowing box (31), and the adjustment component (5) is used to adjust the blowing box (31) to communicate with the first blowing hole (132) or to adjust the blowing box (31) to communicate with any one of the second blowing holes (133).

2. The spraying device for producing popcorn-like fertilizer adapted for a disc granulator according to claim 1, characterized in that: The atomizing assembly (2) comprises a plurality of atomizing plates (21) arranged along the spiral direction of the spiral liquid hole (16), a plurality of atomizing holes (22) being provided on the atomizing plate (21), and the sizes of the atomizing holes (22) on the plurality of atomizing plates (21) gradually decrease from one end of the spiral liquid hole (16) close to the liquid supply hole (14) to one end of the spiral liquid hole (16) close to the atomizing chamber (11).

3. The spraying device for producing popcorn-like fertilizer adapted for a disc granulator according to claim 1, characterized in that: The nozzle body (1) is provided with a swirl assembly (4), the swirl assembly (4) comprising a first swirl strip (41) and a second swirl strip (42), and at least one group of the first swirl strip (41) and the second swirl strip (42) is provided; At least one group of first swirl bars (41) is arranged in a one-to-one correspondence in at least one spiral liquid hole (16), the number of the first swirl bars (41) in each group is at least three, one side of all the first swirl bars (41) in each group are connected together in a divergent shape, the other side of all the first swirl bars (41) in each group are connected to the side wall of the spiral liquid hole (16), and the first swirl bars (41) are arranged along the spiral direction of the spiral liquid hole (16) and are spirally arranged along the spiral direction of the spiral liquid hole (16); At least one group of second swirl strips (42) is arranged in a one-to-one correspondence in at least one spiral air hole (17), the number of the second swirl strips (42) in each group is at least three, one side of all the second swirl strips (42) in each group are connected together in a divergent shape, the other side of all the second swirl strips (42) in each group are connected to the side wall of the spiral air hole (17), and the second swirl strips (42) are arranged along the spiral direction of the spiral air hole (17) and are spirally arranged along the spiral direction of the spiral air hole (17); The spiral direction of the first swirl strip (41) in the spiral liquid hole (16) is opposite to the spiral direction of the second swirl strip (42) in the spiral air hole (17).

4. The spraying device for producing popcorn-like fertilizer adapted for a disc granulator according to claim 1, characterized in that: The adjustment component (5) comprises an adjustment block (51) and an adjustment plate (52); The adjusting block (51) is fitted on the blowing surface (13) and is rotatably connected to the nozzle body (1). The adjusting block (51) is provided with a first adjusting hole (511) and a second adjusting hole (512) which are connected to each other. The first adjusting hole (511) is used to communicate with the first blowing hole (132), and the second adjusting hole (512) is used to communicate with any one of the second blowing holes (133). The adjustment plate (52) is slidably arranged in an adjustment slot (18) provided on the blowing surface (13), and the sliding adjustment plate (52) can close the first blowing hole (132); An adjusting slide block (53) is connected to the adjusting plate (52), and the adjusting slide block (53) is slidably arranged in an annular wave groove (513) provided on one side of the adjusting block (51) close to the blowing surface (13); When the adjusting slider (53) slides to the trough position of the wave groove (513), the adjusting plate (52) opens the first blowing hole (132), so that the first adjusting hole (511) is connected to the first blowing hole (132), and the second adjusting hole (512) is directly opposite to the blowing surface (13); When the adjusting slider (53) slides to the wave crest position of the wave groove (513), the adjusting plate (52) closes the first blowing hole (132), so that the first adjusting hole (511) is directly opposite to the adjusting plate (52), and the second adjusting hole (512) is in a communicating state with one of the second blowing holes (133).

5. The spraying device for producing popcorn-like fertilizer adapted for a disc granulator according to claim 4, characterized in that: A rubber layer (54) is connected to the side wall of the regulating block (51), the rubber layer (54) abuts against the inner wall of the blowing box (31), a knob (55) is rotatably connected to the outer wall of the blowing box (31), and a clearance hole (311) is provided on the side wall of the blowing box (31), the clearance hole (311) allowing the knob (55) to abut against the rubber layer (54).

6. The spraying device for producing popcorn-like fertilizer adapted for a disc granulator according to claim 1, characterized in that: The nozzle body (1) is provided with a protection component (6), the protection component (6) comprising a protection shell (61), the protection shell (61) being spherical, and at least two protection shells (61) being provided around the central axis direction of the spraying surface (12), the protection shell (61) being connected with a hinge shaft (62), the hinge shaft (62) being rotatably connected to the nozzle body (1), and all the protection shells (61) being used to be spliced ​​into a complete hemispherical shape for being fitted on the spraying surface (12).

7. The spraying device for producing popcorn-like fertilizer adapted for a disc granulator according to claim 6, characterized in that: The hinge shaft (62) is connected with a gear (63), the gear (63) is meshed with a rack (64), and the rack (64) is slidably connected with the nozzle body (1). When the blowing air pipe (32) blows air into the blowing box (31), the rack (64) drives the gear (63) to make the protective shell (61) turn away from the spraying surface (12).

8. The spraying device for producing popcorn-like fertilizers adapted to a disc granulator according to claim 7, characterized in that: The rack (64) is connected to a transmission plate (65), a driving groove (651) is provided on the transmission plate (65), the driving groove (651) and the sliding direction of the rack (64) are arranged at an angle, a driving slider (66) is slidably arranged in the driving groove (651), the driving slider (66) is connected to a slide bar (67), the slide bar (67) is slidably arranged on the side wall of the blowing box (31), one end of the slide bar (67) located in the blowing box (31) is connected to a sealing shell (68), the sealing shell (68) is made of magnetic material, and the sliding The sealing shells (68) are arranged on the blowing box (31), and the sealing shells (68) corresponding to all the protective shells (61) are used to be magnetically attracted to each other in the blowing box (31) to form a complete conical sealing shell, and the conical sealing shell is used to seal the connection position between the blowing air pipe (32) and the blowing box (31). When the sealing shell (68) slides away from the connection position between the blowing air pipe (32) and the blowing box (31), the driving slider (66) drives the transmission plate (65) to slide the rack (64), and the rack (64) drives the gear (63) to rotate the protective shell (61) away from the injection surface (12).

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