Screening device for granular fertilizer

Abstract

According to the screening device for the granular fertilizer, a gear is rotationally installed in a feeding pipe, in the feeding process of the feeding pipe, the gear can be controlled to rotate to scatter the caked granular fertilizer, and the screening effect and efficiency are improved. An inclined material guiding plate is fixed in the screening box body, a connecting shaft is rotationally arranged at the bottom of the screening box body, a discharging channel is formed in the connecting shaft, a net-shaped screening barrel is fixed to the upper end of the connecting shaft, a discharging opening is formed in the top of the net-shaped screening barrel, and scattered granular fertilizer can fall down along the inclined material guiding plate and enter the net-shaped screening barrel through the discharging opening; the driving motor is started to drive the net-shaped screening barrel to rotate through the belt and the connecting shaft so as to screen the fertilizer, the screened fine-particle fertilizer can be thrown into the screening box body and finally discharged through the discharging pipe, and the screened coarse-particle fertilizer is left in the net-shaped screening barrel and finally discharged through the discharging channel. The granular fertilizer is screened by rotating the net-shaped screening barrel, the caked fertilizer can be further scattered, and the screening effect and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer processing and application, in particular to a screening device for granular fertilizer. Background Art

[0002] Fertilizers can provide plants with essential nutrients, improve soil properties and soil fertility, and are one of the material bases for agricultural production. They mainly include ammonium phosphate fertilizers, macronutrient water-soluble fertilizers, medium-nutrient fertilizers, biofertilizers, organic fertilizers, and multi-dimensional field energy concentrated organic fertilizers.

[0003] Screening is an essential step in the fertilizer production process. Currently, the fertilizer is screened mainly through the corresponding screening device. Before screening, the granulated fertilizer has been stored for a period of time. During the storage process, the granular fertilizer will clump due to the contact area and the water vapor in the air. However, the current screening device cannot handle the agglomerated granular fertilizer, which affects the screening effect and efficiency. Utility Model Content

[0004] The purpose of the present application is to provide a screening device for granular fertilizers, so as to solve the problem that the current screening devices are unable to process agglomerated granular fertilizers, thereby affecting the screening effect and efficiency.

[0005] In order to solve the above technical problems, the present application provides a screening device for granular fertilizer, comprising:

[0006] A screening box is supported and fixed by supporting legs, the top of the screening box is connected to a feed pipe, a gear is rotatably installed in the feed pipe, an inclined feed guide plate is fixed to the screening box at a position close to the feed pipe, a connecting shaft is rotatably installed at the bottom of the screening box, a discharge channel is arranged along the axial direction of the connecting shaft, a mesh screening cylinder located in the screening box is fixed to the upper end of the connecting shaft, a discharge port corresponding to the inclined feed guide plate is arranged on the top of the mesh screening cylinder, a first solenoid valve is arranged on the connecting shaft, a driving motor is fixed to the inner side of the supporting leg, the driving motor is connected to the connecting shaft by a belt, a discharge pipe is connected to one side of the lower part of the screening box, and a second solenoid valve is arranged on the discharge pipe.

[0007] On the basis of the above-mentioned embodiment, as a preferred implementation mode, a trumpet-shaped discharge pipe is further provided at the top of the mesh screening cylinder near the discharge port.

[0008] On the basis of the above embodiment, as a preferred implementation manner, a heating wire is also embedded in the guide plate.

[0009] On the basis of the above-mentioned embodiment, as a preferred implementation mode, the bottom of the mesh screening cylinder is further provided with an inclined material guide plate corresponding to the discharge channel.

[0010] On the basis of the above embodiment, as a preferred implementation manner, the number of the discharge pipes is two, and the two discharge pipes are respectively arranged on both sides of the lower part of the screening box.

[0011] It should be further explained that the screening box is also provided with an inclined discharge plate corresponding to the discharge pipe.

[0012] What needs to be explained in detail in the solution is that a support plate is fixed on the inner side of the support leg, and the drive motor is fixed on the support plate.

[0013] Compared with the prior art, the utility model provides a screening device for granular fertilizers, comprising a screening box supported and fixed by supporting legs, the top of the screening box being connected to a feed pipe, a gear being rotatably installed in the feed pipe, when in use, granular fertilizers can be put into the screening box through the feed pipe, and during the feeding process, the gears can be controlled to rotate to break up the agglomerated granular fertilizers, thereby improving the screening effect and efficiency. An inclined guide plate is fixed at a position near the feed pipe in the screening box, a connecting shaft is rotatably installed at the bottom of the screening box, a discharge channel is arranged along the axial direction of the connecting shaft, a mesh screening cylinder located in the screening box is fixed at the upper end of the connecting shaft, a discharge port corresponding to the inclined guide plate is arranged at the top of the mesh screening cylinder, and the broken granular fertilizer can fall along the inclined guide plate and enter the mesh screening cylinder through the discharge port, a first solenoid valve is arranged on the connecting shaft, a driving motor is fixed on the inner side of the supporting leg, the driving motor is connected to the connecting shaft by a belt, and the driving motor is started to drive the mesh screening cylinder to rotate through the belt and the connecting shaft to screen the fertilizer, the fine granular fertilizer after screening can be thrown out into the screening box, and finally discharged through the discharge pipe when the second solenoid valve is opened, and the coarse granular fertilizer after screening remains in the mesh screening cylinder, and finally discharged through the discharge channel when the first solenoid valve is opened. The granular fertilizer is screened by the mesh screening cylinder, and the agglomerated fertilizer can be further broken up, thereby improving the screening effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without inventiveness.

[0015] Figure 1 A schematic diagram of the internal structure of a screening device for granular fertilizer provided in an embodiment of the present application;

[0016] Figure 2A schematic diagram of the external structure of a screening device for granular fertilizer provided in an embodiment of the present application;

[0017] In the figure: 1. Support legs; 2. Screening box; 3. Feed pipe; 4. Gear; 40. Motor; 41. Mounting shaft; 5. Inclined guide plate; 6. Connecting shaft; 7. Discharge channel; 8. Mesh screening cylinder; 9. Discharge port; 10. First solenoid valve; 11. Drive motor; 12. Belt; 13. Discharge pipe; 14. Second solenoid valve; 15. Trumpet-shaped discharge pipe; 16. Inclined guide plate; 17. Inclined discharge plate; 18. Support plate. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0019] The core of the present application is to provide a screening device for granular fertilizers, which solves the problem that the current screening devices are unable to process agglomerated granular fertilizers, thereby affecting the screening effect and efficiency.

[0020] Figure 1 A schematic diagram of the internal structure of a screening device for granular fertilizer provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the external structure of a screening device for granular fertilizer provided in an embodiment of the present application, see Figure 1 to Figure 2 shown.

[0021] Example 1

[0022] A screening device for granular fertilizers includes a screening box 2, a plurality of supporting legs 1 are fixed at the bottom of the screening box 2, and the screening box 2 is supported and fixed by the plurality of supporting legs 1. In actual design, in order to improve the convenience of design and installation, the supporting legs 1 and the screening box 2 can be set as an integrated structure. A feed pipe 3 is connected to the top of the screening box 2, and the feed pipe 3 can be a trumpet-shaped feed pipe. A gear 4 is rotatably installed in the feed pipe 3. When installing, the gear 4 can be set close to the screening box 2, and after installation, a gap is left between the gear 4 and the inner wall of the screening box 2 to ensure that the fertilizer after being broken up can smoothly enter the screening box 2. The gear 4 is driven by a motor 40 fixed to the outside of the screening box 2. Specifically, the mounting shaft 41 of the gear 4 is fixedly connected to the output shaft of the motor 40. An inclined guide plate 5 is fixed in the screening box 2. After installation, the inclined guide plate 5 is arranged close to the feed pipe 3 and corresponds to the feed pipe 3. When in use, the granular fertilizer can be put into the screening box 2 through the feed pipe 3. During the feeding process, the motor 40 can be started to drive the gear 4 to rotate to break up the agglomerated fertilizer.

[0023] A connecting shaft 6 is rotatably installed at the bottom of the screening box 2, and a discharge channel 7 is arranged along the axial direction of the connecting shaft 6. A mesh screening drum 8 is fixed to the upper end of the connecting shaft 6, and the mesh screening drum 8 is located in the screening box 2. The setting of the discharge channel 7 facilitates the discharge of coarse materials in the mesh screening drum 8 after screening. A discharge port 9 corresponding to the inclined guide plate 5 is arranged on the top of the mesh screening drum 8. The broken fertilizer can enter the mesh screening drum 8 through the discharge port 9 under the action of the inclined guide plate 5. A first solenoid valve 10 is arranged on the connecting shaft 6 to facilitate the closing and opening of the discharge channel 7. A driving motor 11 is fixed to the inner side of the supporting leg 1, and the driving motor 11 is connected to the connecting shaft 6. The connecting shafts 6 are connected by a belt 12. Starting the driving motor 11 can drive the mesh screening drum 8 to rotate through the belt 12 and the connecting shaft 6. During the rotation of the mesh screening drum 8, the granular fertilizer therein can be screened, and the agglomerated fertilizer can be further broken up. A discharge pipe 13 is connected to one side of the lower part of the screening box 2. A second solenoid valve 14 is provided on the discharge pipe 13. The screened fine-grained fertilizer can be thrown out into the screening box 2, and finally the second solenoid valve 14 is opened to be discharged through the discharge pipe 13; the screened coarse-grained fertilizer remains in the mesh screening drum 8, and finally is discharged through the discharge channel 7 when the first solenoid valve 10 is opened.

[0024] Example 2

[0025] On the basis of Example 1, a screening device for granular fertilizers is provided. In order to ensure smooth discharge of materials, preferably, a trumpet-shaped discharge pipe 15 is further provided at the top of the mesh screening cylinder 8 near the discharge port 9. After installation, the trumpet-shaped discharge pipe 15 is located below the inclined feed guide plate 5 and corresponds to the inclined feed guide plate 5, thereby ensuring that all the fertilizers flowing down through the inclined feed guide plate 5 enter the mesh screening cylinder 8 through the trumpet-shaped discharge pipe 15.

[0026] On the basis of Example 1, a screening device for granular fertilizer is provided. In order to facilitate drying of the granular fertilizer after being broken up and subsequent screening processing, preferably, a heating wire is embedded in the inclined guide plate 5, and the heating wire is not drawn in the figure.

[0027] On the basis of Example 1, a screening device for granular fertilizer is provided. In order to facilitate the rapid discharge of coarse granular fertilizer in the mesh screening cylinder 8, preferably, an inclined guide plate 16 corresponding to the discharge channel 7 is also provided at the bottom of the mesh screening cylinder 8, and the material is guided by the inclined guide plate 16 to be discharged from the discharge channel 7.

[0028] On the basis of Example 1, a screening device for granular fertilizers may preferably be provided with two discharge pipes 13 in order to achieve a discharge speed, and the two discharge pipes 13 are respectively arranged on both sides of the lower part of the screening box 2, so that the fine granular fertilizers in the screening box 2 can be discharged quickly through the two discharge pipes 13 at the same time.

[0029] In the present embodiment, a screening device for granular fertilizer is provided. In order to further improve the rapid discharge of fine granular fertilizer in the screening box 2, preferably, an inclined discharge plate 17 corresponding to the discharge pipe 13 is further provided in the screening box 2, and the material is guided by the inclined discharge plate 17 to be discharged quickly from the two discharge pipes 13.

[0030] On the basis of any of the above embodiments, in a screening device for granular fertilizer, in order to improve the operating stability of the drive motor 11 , preferably, a support plate 18 is fixed to the inner side of the support leg 1 , and the drive motor 11 is fixed on the support plate 18 .

[0031] The utility model provides a screening device for granular fertilizers, including a screening box 2 supported and fixed by a supporting leg 1, the top of the screening box 2 is connected to a feed pipe 3, a gear 4 is rotatably installed in the feed pipe 3, when in use, the granular fertilizer can be put into the screening box 2 through the feed pipe 3, and during the feeding process, the gear 4 can be controlled to rotate to break up the agglomerated granular fertilizers, thereby improving the screening effect and efficiency. An inclined guide plate 5 is fixed at a position near the feed pipe 3 in the screening box 2, a connecting shaft 6 is rotatably installed at the bottom of the screening box 2, and a discharge channel 7 is arranged along the axial direction of the connecting shaft 6, a mesh screening cylinder 8 located in the screening box 2 is fixed at the upper end of the connecting shaft 6, and a discharge port 9 corresponding to the inclined guide plate 5 is arranged on the top of the mesh screening cylinder 8, the broken up granular fertilizer can fall along the inclined guide plate 5 and enter the mesh screening cylinder 8 through the discharge port 9, a first solenoid valve 10 is arranged on the connecting shaft 6, and the support A driving motor 11 is fixed to the inner side of the leg 1. The driving motor 11 is connected to the connecting shaft 6 through a belt 12. When the driving motor 11 is started, the mesh screening drum 8 can be driven to rotate through the belt 12 and the connecting shaft 6 to screen the fertilizer. The fine-grained fertilizer after screening can be thrown into the screening box 2, and finally discharged through the discharge pipe 13 when the second solenoid valve 14 is opened. The coarse-grained fertilizer after screening remains in the mesh screening drum 8, and finally discharged through the discharge channel 7 when the first solenoid valve 10 is opened. The mesh screening drum 8 is used to screen the granular fertilizer, which can further break up the agglomerated fertilizer and improve the screening effect and efficiency.

[0032] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art disclosed in the present application. The specification and examples are to be regarded as exemplary only, and the true scope of the present application is indicated by the claims.

[0033] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. A screening device for granular fertilizer, characterized in that: include: A screening box (2) is supported and fixed by supporting legs (1), the top of the screening box (2) is connected to a feed pipe (3), a gear (4) is rotatably mounted in the feed pipe (3), an inclined guide plate (5) is fixed at a position close to the feed pipe (3) in the screening box (2), a connecting shaft (6) is rotatably mounted at the bottom of the screening box (2), the connecting shaft (6) is provided with a discharge channel (7) along its axial direction, and a gear (4) located in the screening box (2) is fixed at the upper end of the connecting shaft (6). A mesh screening drum (8) is provided inside the support leg (1), a discharge port (9) corresponding to the inclined feed guide plate (5) is provided on the top of the mesh screening drum (8), a first solenoid valve (10) is provided on the connecting shaft (6), a driving motor (11) is fixed on the inner side of the supporting leg (1), the driving motor (11) and the connecting shaft (6) are connected by a belt (12), a discharge pipe (13) is connected to one side of the lower part of the screening box (2), and a second solenoid valve (14) is provided on the discharge pipe (13).

2. The screening device for granular fertilizer according to claim 1, characterized in that: A trumpet-shaped discharge pipe (15) is also provided at the top of the mesh screening cylinder (8) near the discharge port (9).

3. The screening device for granular fertilizer according to claim 1, characterized in that: A heating wire is also embedded in the inclined material guiding plate (5).

4. The screening device for granular fertilizer according to claim 1, characterized in that: The bottom of the mesh screening cylinder (8) is also provided with an inclined material guide plate (16) corresponding to the material discharge channel (7).

5. The screening device for granular fertilizer according to claim 1, characterized in that: There are two discharge pipes (13), and the two discharge pipes (13) are arranged on both sides of the lower part of the screening box (2).

6. The screening device for granular fertilizer according to claim 5, characterized in that: The screening box (2) is also provided with an inclined discharge plate (17) corresponding to the discharge pipe (13).

7. The screening device for granular fertilizer according to any one of claims 1 to 6, characterized in that: A support plate (18) is fixed on the inner side of the support leg (1), and the drive motor (11) is fixed on the support plate (18).

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