Spraying device adaptive to disc granulator for producing popcorn-shaped fertilizer

Abstract

The invention relates to a spraying device adapted to a disc granulator for producing popcorn-shaped fertilizer, and relates to the technical field of fertilizer granulation, the spraying device comprises a spray head main body, an atomization assembly and a blowing assembly; an atomizing cavity is formed in the nozzle body, a spraying hole is formed in one end of the nozzle body, and a blowing hole is formed in the other end of the nozzle body; a liquid supply hole and an air supply hole are formed in the spray head main body; a spiral liquid hole and a spiral air hole are formed in the spray head body, the two ends of the spiral liquid hole communicate with the liquid supply hole and the atomization cavity correspondingly, and the two ends of the spiral air hole communicate with the air supply hole and the atomization cavity correspondingly; the atomization assembly is arranged in the spiral liquid hole and is used for atomizing the granulation solution; the mist flow column and the airflow column collide in the atomization cavity to form a mist cluster; the blowing injection assembly is arranged on the spray head body and used for blowing mist clusters in the atomization cavity out of the spraying holes through the blowing injection holes by means of airflow in the air supply holes. The device has the effect that the granulation solution can 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 in particular to a spraying device adapted for a disc granulator to produce popcorn-shaped fertilizer. Background Art

[0002] In order to make fertilizers easier to absorb and improve fertilizer efficiency, fertilizers are usually made into popcorn shapes using a disc granulator. In the process of granulating popcorn-shaped fertilizers, it is necessary to spray a variety of granulation solutions of different concentrations at the same time, so that the granulated fertilizer particles can contact a variety of granulation solutions of different concentrations at the same time. Under the joint action of granulation solutions of different concentrations, the fertilizer particles gradually grow unevenly and form popcorn-shaped fertilizers.

[0003] The existing granulation solution spraying device includes a liquid guide tube and a nozzle. There are multiple liquid guide tubes and nozzles, and they correspond to each other one by one. The nozzle is connected to the end of the liquid guide tube. The liquid guide tube guides the pressurized granulation solution to the nozzle. The concentration of the granulation solution flowing in each liquid guide tube is inconsistent. The granulation solution collides with the nozzle. After the collision, the granulation solution is transformed from a liquid flow column to a mist flow column and is sprayed out from the nozzle hole of the nozzle, so that granulation solutions of different concentrations can be sprayed onto the granulation disk of the disc granulator to assist the fertilizer particles to be formed into popcorn shape.

[0004] The atomization degree of the granulation solution during spraying has a significant impact on the growth and formation of the fertilizer particles. However, the mist column formed by the liquid column impacting the nozzle has the defect of low atomization degree, which makes it easy for the granulation solution to be sprayed in the form of fine water flow or large particle water droplets, making it difficult for the granulation solution to be sprayed on the fertilizer particles in a mist state, so that some fertilizer particles are easily exposed to only one concentration of granulation solution, which is not conducive to the uneven growth of the 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 spray device suitable for a disc granulator for producing popcorn-shaped fertilizers.

[0006] The present application provides a spraying device suitable for producing popcorn-like fertilizers in a disc granulator, which adopts the following technical solution: An injection device suitable for a disc granulator to produce popcorn-shaped fertilizers, comprising a nozzle body, an atomizing component and a blowing component; An atomizing chamber is provided inside the nozzle body, an injection surface is provided at one end of the nozzle body, a plurality of injection holes are provided on the injection surface and all are connected to the atomizing chamber, and a blowing surface is provided at the other end of the nozzle body, and a blowing hole is provided on the blowing surface and is connected to the atomizing chamber; The nozzle body is provided with a liquid supply hole and an air supply hole, both of which are arranged close to the blowing surface. The liquid supply hole is connected to a liquid inlet pipe for introducing a granulation solution, and the air supply hole is connected to an air inlet pipe for introducing an air flow. 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 connected with the liquid supply hole, and the other end is connected with the atomizing chamber, one end of the spiral air hole is connected with the air supply hole, and the other end is connected with the atomizing chamber; At least one group of atomizing components is provided, and they are arranged in the spiral liquid holes in a one-to-one correspondence, and the atomizing components are used to atomize the granulation solution when it flows in the spiral liquid holes; The flow trajectories of the mist flow columns flowing from all the spiral liquid holes into the atomizing chamber and the air flow columns flowing from all the spiral air holes into the atomizing chamber in the atomizing chamber have a common intersection point, and the mist flow column and the air flow column are used to collide at the intersection point to form a mist mass; The blowing assembly is arranged on the blowing surface and is used for blowing the mist mass in the atomizing cavity out from the injection hole through the blowing hole by means of the air flow in the air supply hole.

[0007] By adopting the above technical scheme, when spraying the granulation solution, the granulation solution is supplied from the liquid inlet pipe to the liquid supply hole, the granulation solution flows from the liquid supply hole into the spiral liquid hole, and flows spirally in the spiral liquid hole, the atomization component atomizes the granulation solution, and 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 granulation solution by the atomization component, so that the granulation solution can flow into the atomization chamber in the form of a mist column, so that the granulation solution completes the first atomization before entering the atomization chamber.

[0008] When the granulation solution is introduced into the liquid inlet pipe, air is introduced into the air inlet pipe, and the air flows into 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 flows spirally in the spiral air hole. The air flow flows from the spiral air hole into the atomization chamber in the form of an air flow column. Since the flow trajectories of the two mist flow columns and the two air flow columns in the atomization chamber have a common intersection point, the two mist flow columns and the two air flow columns can collide at the intersection point to form a mist mass, so that the granulation solution can complete the second atomization in the atomization chamber.

[0009] The blowing component can blow the mist mass in the atomizing chamber out of the injection hole through the blowing hole with the help of the air flow in the air supply hole. On the first hand, the blowing component does not require an additional air source to blow the mist mass. On the second hand, the blowing component can drive the mist mass to spray out of the atomizing chamber. On the third hand, when the mist mass is sprayed out from the injection hole driven by the blowing component, it can complete the third atomization by collision.

[0010] During the spraying process, the granulation solution can be atomized three times in sequence in the spiral liquid hole, the atomization cavity and the spray hole, which improves the atomization degree of the granulation solution and makes it difficult for the granulation solution to converge into fine water flow or large particle water droplets during the spraying process, so that the granulation solution can be sprayed on the fertilizer particles in a mist state. With the cooperation of multiple spraying devices, the fertilizer particles can grow unevenly into popcorn shape.

[0011] Optionally, the atomization assembly includes multiple atomization plates arranged along the spiral direction of the spiral liquid hole, multiple atomization holes are opened on the atomization plate, and the size of the atomization holes on the multiple atomization plates gradually decreases from one end of the spiral liquid hole close to the liquid supply hole to the end of the spiral liquid hole close to the atomization chamber.

[0012] By adopting the above technical solution, the granulation solution can flow through the atomization plate one by one when flowing in the spiral liquid hole, and the granulation solution will hit the atomization plate each time it flows through the atomization plate to be atomized. Since the diameters of the atomization holes on the multiple 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 chamber.

[0013] Optionally, the blowing assembly includes a blowing box and a blowing air pipe, one side of the blowing box is open and connected to the blowing surface, one end of the blowing air pipe is connected to the air supply hole, and the other end is connected to the blowing box.

[0014] By adopting the above technical scheme, the air supply hole and the blowing box are connected through the blowing air pipe, so that the airflow in the air supply hole can not only flow into the spiral air hole but also flow into the blowing box, thereby guiding the airflow in the air supply hole into the blowing box, and the airflow in the blowing box can blow the mist mass through the blowing hole to be ejected from the injection hole, thereby making it possible to eject the mist mass with the help of the airflow in the air supply hole without the need for an additional air source.

[0015] Optionally, a swirl assembly is provided on the nozzle body, the swirl assembly includes a first swirl bar and a second swirl bar, and the first swirl bar and the second swirl bar are each provided with at least one group; At least one group of first swirl bars is arranged in at least one spiral liquid hole in a one-to-one correspondence, the number of first swirl bars in each group is at least three, one side of all the first swirl bars in each group is connected together in a divergent shape, the other side of all the first swirl bars in each group is connected to the side wall of the spiral liquid hole, and the first swirl bars are arranged along the spiral direction of the spiral liquid hole and are spirally arranged along the spiral direction of the spiral liquid hole; At least one group of second swirl strips is arranged in at least one spiral air hole in a one-to-one correspondence, the number of second swirl strips in each group is at least three, one side of all the second swirl strips in each group is connected together in a divergent shape, the other side of all the second swirl strips in each group is connected to the side wall of the spiral air hole, and the second swirl strips are arranged along the spiral direction of the spiral air hole and are spirally arranged along the spiral direction of the spiral air hole; The spiral direction of the first swirl strip in the spiral liquid hole is opposite to the spiral direction of the second swirl strip in the spiral air hole.

[0016] By adopting the above technical scheme, the three first swirl strips enable the granulation solution flowing in the spiral liquid hole to form three spiral flow mist columns, and the three second swirl strips enable the airflow flowing in the spiral air hole to form three spiral flow air flow columns. Since the spiral direction of the first swirl strip in the spiral liquid hole is opposite to the spiral direction of the second swirl strip in the spiral air hole, the rotation direction of the three mist flow columns is opposite to the rotation direction of the three air flow columns. When the three mist flow columns with opposite rotation directions collide with the three air flow columns, a stronger impact effect can be caused, thereby further improving the impact atomization effect of the mist flow column and the air flow column.

[0017] Optionally, the injection surface and the blowing surface are both spherical, and the centers of the injection surface and the blowing surface coincide with each other, the intersection of the mist column and the air flow column in the atomization chamber is located at the center of the injection surface, and the opening direction of the injection hole is consistent with the diameter direction of the injection surface; The blowing holes include a first blowing hole and a second blowing hole. The first blowing hole is opened at the center 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 opened around the first blowing hole, and all are opened at the edge of the blowing surface. The opening direction of the second blowing holes is consistent with the diameter direction of the blowing surface. An adjusting component is arranged in the blowing box, and the adjusting component is used for adjusting the blowing box to be connected with the first blowing hole or adjusting the blowing box to be connected with any one of the second blowing holes.

[0018] By adopting the above technical scheme, when the adjusting component adjusts the blow box to be connected with the first blow hole, since the first blow hole is located at the center of the blowing surface, the airflow in the blow box can be blown forward on the mist mass, so that the mist mass can diffuse and flow to all the injection holes, so that the injection device can spray as a whole; when the adjusting component adjusts the blow box to be connected with any second blow hole, since the second blow hole is located at the edge of the blowing surface, the airflow in the blow box can be blown obliquely on the mist mass, so that the mist mass can flow concentratedly to some injection holes in the area directly facing the second blow hole, so that the injection device can spray locally, so that the injection device can not only spray as a whole, but also spray locally on some areas of the granulation disk.

[0019] Optionally, the adjustment assembly includes an adjustment block and an adjustment plate; 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. 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; 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; 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; 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 1. The granulation solution collides with the atomizing plate in the spiral liquid hole for the first atomization, the atomized mist column collides with the air flow column in the atomization chamber for the second atomization, and the atomized mist mass is ejected from the injection hole under the action of the air flow blown out of the blowing hole, and the third atomization is performed, thereby improving the atomization degree of the granulation solution, so that the granulation solution can be sprayed on the fertilizer particles in a mist state; 2. By providing the first swirl strip and the second swirl strip, the collision atomization effect of the mist column and the air flow column is improved; 3. By setting the adjustment block, the adjustment plate and the adjustment slider, and opening the first adjustment hole, the second adjustment hole and the wave groove on the adjustment block, the spray device can realize the switching between overall spraying and local spraying; 4. By arranging the protective shell, the hinge shaft, the gear, the rack, the transmission plate, the driving slider, the slide rod and the closing shell, the spray hole can be protected when the spraying of the granulation solution is stopped. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of the atomizing chamber, the injection hole, the blowing hole, the liquid supply hole, the air supply hole, the spiral liquid hole and the spiral air hole; Figure 3 yes Figure 2 Magnified view at A in the middle; Figure 4 yes Figure 2 Magnified view at B in the middle; Figure 5 is an exploded view of the regulating assembly; Figure 6 It is a schematic diagram of the structure of the wave tank; Figure 7 is an exploded view of the drive slider.

[0031] Description of reference numerals: 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

[0032] The following is combined with Figure 1-7 This application is described in further detail.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Reference Figure 2Two spiral liquid holes 16 and two spiral air holes 17 are provided on the nozzle body 1. 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. The rotation directions of the two spiral liquid holes 16 and the two spiral air holes 17 are consistent.

[0037] Two groups of atomizing components 2 are provided, and 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 the two spiral liquid holes 16 and the air flow columns flowing into the atomizing chamber 11 from the two spiral air holes 17 have a common intersection in the atomizing chamber 11. The mist flow columns and the air flow columns are used to collide at the intersection to form a mist mass.

[0038] The blowing assembly 3 is arranged on the blowing surface 13 and is used to blow the mist in the atomizing chamber 11 out from the injection hole 121 through the blowing hole 131 by means of the air flow in the air supply hole 15, so that the granulating solution is sprayed on the fertilizer particles in a mist state from the injection hole 121.

[0039] 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 flows spirally in the spiral liquid hole 16, the atomization component 2 atomizes the granulation solution, and 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 granulation solution by the atomization component 2, so that the granulation solution can flow into the atomization chamber 11 in the form of a mist column, so that the granulation solution completes the first atomization before entering the atomization chamber 11.

[0040] When the granulation solution is introduced into the liquid inlet pipe 141, air is introduced into the air inlet pipe 151, and the air flows into the air supply hole 15 in the form of an airflow. The airflow flows from the air supply hole 15 into the spiral air hole 17 and flows spirally in the spiral air hole 17. The airflow flows from the spiral air hole 17 into the atomization chamber 11 in the form of an airflow column. Since the flow trajectories of the two mist flow columns and the two airflow columns in the atomization chamber 11 have a common intersection point, the two mist flow columns and the two airflow columns can collide at the intersection point to form a mist mass, so that the granulation solution can complete the second atomization in the atomization chamber 11.

[0041] The blowing component 3 can blow the mist mass in the atomizing chamber 11 out of the injection hole 121 with the help of the air flow in the air supply hole 15 through the blowing hole 131. On the first hand, the blowing component 3 does not require an additional air source to blow the mist mass. On the second hand, the blowing component 3 can drive the mist mass to spray out of the atomizing chamber 11. On the third hand, when the mist mass is sprayed out from the injection hole 121 driven by the blowing component 3, it can complete the third atomization by collision.

[0042] During the spraying process, the granulation solution can be atomized three times in sequence in the spiral liquid hole 16, the atomization chamber 11 and the spray hole 121, which improves the atomization degree of the granulation solution and makes it difficult for the granulation solution to converge into fine water flow or large particle water droplets during the spraying process, so that the granulation solution can be sprayed on the fertilizer particles in a mist state. With the cooperation of multiple spraying devices, the fertilizer particles can grow unevenly into popcorn shape.

[0043] Specifically, refer to Figure 3 The atomizing assembly 2 includes a plurality of atomizing plates 21 arranged along the spiral direction of the spiral liquid hole 16. The atomizing plates 21 are fixedly connected to the inner wall of the spiral liquid hole 16. The atomizing plates 21 are provided with a plurality of through atomizing holes 22. The atomizing holes 22 are circular, and the diameters 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 the other end of the spiral liquid hole 16 close to the atomizing chamber 11.

[0044] When the granulation solution flows in the spiral liquid hole 16, it can flow through the atomization plate 21 one by one. Each time the granulation solution flows through the atomization plate 21, it will impact on the atomization plate 21 to be atomized. 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.

[0045] Specifically, refer 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 fixedly 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.

[0046] The air supply hole 15 and the blowing box 31 are connected by the blowing air pipe 32, so that the airflow in the air supply hole 15 can flow into the blowing box 31 in addition to flowing into the spiral air hole 17, thereby guiding the airflow in the air supply hole 15 into the blowing box 31, and the airflow in the blowing box 31 can blow the mist mass through the blowing hole 131 to be ejected from the injection hole 121, thereby making it possible to eject the mist mass with the help of the airflow in the air supply hole 15 without the need for an additional air source.

[0047] Reference Figure 2 In order to improve the impact atomization effect of the mist column and the air flow column, a swirl component 4 is provided on the nozzle body 1. The swirl component 4 includes a first swirl bar 41 and a second swirl bar 42. The first swirl bar 41 and the second swirl bar 42 are both provided in two groups.

[0048] Reference Figure 2 and Figure 3Two groups of first swirl bars 41 are arranged in two spiral liquid holes 16 in a one-to-one correspondence, the number of first swirl bars 41 in each group is three, one side of all the first swirl bars 41 in each group are fixedly connected together in a divergent shape, and the other side of all the first swirl bars 41 in each group are fixedly connected to the side wall of the spiral liquid hole 16, the first swirl bars 41 are fixedly penetrated on 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 spirally arranged along the spiral direction of the spiral liquid hole 16.

[0049] Reference Figure 2 and Figure 4 Two groups of second swirl bars 42 are arranged in two spiral holes 17 in a one-to-one correspondence. The number of second swirl bars 42 in each group is three. One side of all the second swirl bars 42 in each group is fixedly connected together in a divergent manner, and the other side of all the second swirl bars 42 in each group is fixedly connected to the side wall of the spiral hole 17. The second swirl bars 42 are arranged along the spiral direction of the spiral hole 17, and the second swirl bars 42 are spirally arranged along the spiral direction of the spiral hole 17.

[0050] Reference Figure 3 and Figure 4 In order to further enhance the impact atomization effect of the mist column and the air flow column, 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.

[0051] The three first swirl strips 41 enable the granulation solution flowing in the spiral liquid hole 16 to form three spiral flow mist columns, and the three second swirl strips 42 enable the air flow flowing in the spiral air hole 17 to form three spiral flow air flow columns. Since 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, the rotation direction of the three mist flow columns is opposite to the rotation direction of the three air flow columns. When the three mist flow columns with opposite rotation directions collide with the three air flow columns, a stronger impact effect can be caused, thereby further improving the impact atomization effect of the mist flow columns and the air flow columns.

[0052] Reference Figure 5 In order to enable the spraying device to switch between overall spraying and local spraying, an adjustment component 5 is provided in the blowing box 31.

[0053] Reference Figure 2 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 atomization 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.

[0054] Reference Figure 5The 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 position 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 position of the blowing surface 13. The opening direction of the second blowing holes 133 is consistent with the diameter direction of the blowing surface 13.

[0055] The adjustment component 5 is used to adjust the blowing box 31 to be connected with the first blowing hole 132 or to adjust the blowing box 31 to be connected with any one of the second blowing holes 133 .

[0056] When the adjustment component 5 adjusts the blow box 31 to be connected with the first blow hole 132, since the first blow hole 132 is located at the center of the blowing surface 13, the airflow in the blow box 31 can be blown forward on the mist mass, so that the mist mass can diffuse and flow to all the injection holes 121, so that the injection device can spray as a whole; when the adjustment component 5 adjusts the blow box 31 to be connected with any second blow hole 133, since the second blow hole 133 is located at the edge of the blowing surface 13, the airflow in the blow box 31 can be blown obliquely on the mist mass, so that the mist mass can flow concentratedly to some injection holes 121 in the area facing the second blow hole 133, so that the injection device can spray locally, so that the injection device can not only spray as a whole, but also spray locally on some areas of the granulation disk.

[0057] Further, refer to Figure 5 The adjustment component 5 includes an adjustment block 51 and an adjustment plate 52 .

[0058] One side of the adjusting block 51 is fitted on the blowing surface 13 and is rotatably connected to the nozzle body 1 around the central axis of the blowing surface 13. A first adjusting hole 511 and a second adjusting hole 512 are provided on the adjusting block 51. The first adjusting hole 511 is located at the center of the adjusting block 51. 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 of the adjusting block 51. The second adjusting hole 512 is used to communicate with any one of the second blowing holes 133.

[0059] Reference 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] When the adjusting block 51 needs to be rotated, the adjusting block 51 abuts against the knob 55 through the rubber layer 54, thereby increasing the friction 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, thereby facilitating the adjusting block 51 to rotate.

[0064] Reference Figure 2 In order to prevent the injection hole 121 from being blocked by foreign objects, a protective component 6 is provided on the nozzle body 1. The protective component 6 includes a protective shell 61. The protective shell 61 is spherical and two protective shells are provided 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. 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.

[0065] After stopping spraying the granulation solution, the hinge shaft 62 is rotated, and the hinge shaft 62 drives the protective shell 61 to rotate, so that the two protective shells 61 are both attached to the injection surface 12, and the protective shell 61 closes the injection hole 121, so that foreign matter from the outside is difficult to enter the injection hole 121, so that the injection hole 121 is not easily blocked by foreign matter.

[0066] Further, refer to Figure 2 A gear 63 is fixedly connected to the hinge shaft 62, and the gear 63 is meshed 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.

[0067] When the blowing air pipe 32 blows air into the blowing box 31, the injection hole 121 needs to be opened to allow the mist granulation solution to be sprayed out. At this time, the sliding rack 64 can drive the gear 63 to rotate so that the protective shell 61 is turned away from the injection surface 12, thereby facilitating driving the protective shell 61 to turn away from the injection surface 12 when the granulation solution needs to be sprayed.

[0068] Furthermore, refer to Figure 2 and Figure 7 The rack 64 is fixedly connected to a transmission plate 65, and a driving groove 651 is provided on the transmission plate 65. The driving groove 651 is set at an angle to the sliding direction of the rack 64. A driving slider 66 is slidably set in the driving groove 651. The driving slider 66 is fixedly connected to a slide rod 67, and the slide rod 67 is slidably penetrated on the side wall of the blowing box 31.

[0069] Reference 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in 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).

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 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).

4. 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).

5. The spraying device for producing popcorn-like fertilizer adapted for a disc granulator according to claim 3, characterized in that: 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).

6. The spraying device for producing popcorn-like fertilizers adapted to a disc granulator according to claim 5, 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).

7. The spraying device for producing popcorn-like fertilizer adapted for a disc granulator according to claim 6, 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).

8. The spraying device for producing popcorn-like fertilizer adapted for a disc granulator according to claim 3, 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).

9. The spraying device for producing popcorn-like fertilizer adapted to a disc granulator according to claim 8, 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).

10. The spraying device for producing popcorn-like fertilizer adapted to a disc granulator according to claim 9, 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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