Screening device for fertilizer production

Abstract

The screening device for fertilizer production comprises a box body, a feeding port is formed in the top of the box body, and a discharging port is formed in the bottom of the box body; the screening assembly comprises a screening frame arranged in the box body in a sliding mode, and the screening frame is connected with a reciprocating assembly; a discharging port is formed in the side wall of the screening frame, and a baffle used for closing or opening the discharging port is arranged on the screening frame in a sliding mode. The storage hopper is located between the screening frame and the feeding port, a material passing port matched with the screening frame is formed in the bottom of the storage hopper, and the bottom of the screening frame is connected with a blocking assembly to open or close the material passing port. The fertilizer particle screening device solves the problem that in the prior art, screening quality is poor, the storage hopper and the screening frame are arranged in a matched mode, the screening process and the discharging process are separated, it is guaranteed that the screening frame has enough time for screening, and therefore the screening quality of fertilizer particles is improved.

Description

Technical Field

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

[0002] Fertilizer refers to a substance that provides one or more essential nutrient elements for plants and improves soil properties and soil fertility level, and is one of the material bases for agricultural production. It mainly includes ammonium phosphate fertilizers, water-soluble fertilizers of macronutrients, medium element fertilizers, biological fertilizers, organic fertilizers, multi-dimensional field energy concentrated organic fertilizers, etc. During the production process of fertilizers, a screening device is required to screen fertilizer particles to screen out unqualified fertilizer particles and ensure the use quality of fertilizer particles.

[0003] A Chinese patent (publication number: CN220444372U) discloses a fertilizer production screening device, which includes a screening box and support legs. The outer surface of the screening box is communicated with discharge pipes, the middle part of the lower surface of the screening box is communicated with a falling pipe, the upper part of one side of the screening box is communicated with a feed pipe, the bottom of the inner cavity of the screening box is symmetrically and fixedly connected with inclined blocks, a filter screen cleaning mechanism is installed inside the screening box, and a first filter screen is movably connected to the inner cavity of the screening box. The lower surface of the first filter screen is fixedly connected with a second filter screen through a fixing plate.

[0004] In the above solution, fertilizer particles directly discharge through the discharge pipe after entering the inclined filter screen in the screening box. However, during the screening process, since there is no blocking structure between the discharge pipe and the filter screen, after the fertilizer particles fall onto the inclined filter screen, unqualified fertilizer particles with too fast sliding speed may slide out of the discharge pipe together with qualified particles without being filtered, resulting in poor screening quality and problems such as time-consuming and laborious repeated filtering and screening. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is that the screening quality is poor, and unqualified fertilizer particles may slide out of the discharge pipe together with qualified particles without being filtered; the purpose is to provide a screening device for fertilizer production, which solves the problem of poor screening quality in the prior art.

[0006] The utility model is realized through the following technical solutions:

[0007] A screening device for fertilizer production includes:

[0008] A box body, an inlet is opened at the top of the box body, and a discharge opening is opened at the bottom of the box body;

[0009] A screening component, the screening component includes a screening frame slidably arranged in the box body, the screening frame is connected with a reciprocating component for driving the screening frame to reciprocate; a discharge opening is opened on the side wall of the screening frame, and a baffle for closing or opening the discharge opening is slidably arranged on the screening frame;

[0010] A storage hopper is located between the screening frame and the feeding port. A material passing port that mates with the screening frame is provided at the bottom of the storage hopper, and a plugging assembly is connected to the bottom of the screening frame to open or close the material passing port.

[0011] Further optimization: The plugging assembly includes a cover plate that is connected to the material passing port in a mating manner, and a first electric telescopic rod is connected to the top of the cover plate.

[0012] Further optimization: To ensure that the fertilizer entering the storage hopper can effectively fall into the screening frame, it is set that the storage hopper is in a funnel shape.

[0013] Further optimization: The reciprocating assembly includes:

[0014] A driving plate, which is connected to one side of the screening frame, and a driving hole is provided on the driving plate;

[0015] A rotating shaft, which is arranged horizontally and rotatably in the box body. A driving rod that passes through the driving hole and slides in the driving hole is sleeved on the rotating shaft. The driving rod is connected to the driving hole in a mating manner to make the driving plate move back and forth.

[0016] Further optimization: A motor is provided at one end of the rotating shaft.

[0017] Further optimization: To ensure that the screening frame slides stably on the box body, it is set that a sliding groove is provided on the box body along the sliding direction of the screening frame, and a sliding block that slidably mates with the sliding groove is provided on the screening frame.

[0018] Further optimization: Two filter plates are arranged obliquely in the screening frame. The two filter plates divide the screening frame into a first screening area and a second screening area. There are two discharge ports, and the two discharge ports are respectively located in the first screening area and the second screening area and are connected to the lower ends of the corresponding filter plates.

[0019] Further optimization: Two baffle plates are provided, and the two baffle plates are respectively arranged in cooperation with the two discharge ports. A placement groove that slidably mates with the corresponding baffle plate is provided on the side wall of the screening frame. Second electric telescopic rods located in the corresponding placement grooves are provided at the tops of the two baffle plates.

[0020] Further optimization: The inclination directions of the two filter plates are opposite.

[0021] Further optimization: Support feet are provided at the bottom of the box body.

[0022] The working principle of the present utility model is as follows:

[0023] During screening, the fertilizer particles enter the box from the feed inlet and then fall into the storage hopper. At this time, the material passing port is in the open state. Then, the fertilizer particles enter the screening frame for screening. At this time, the discharge port is closed by the baffle, and the reciprocating component drives the screening frame to move back and forth for vibration. When the fertilizer particles accumulate to a certain extent, the screening work stops.

[0024] During discharging, first, the material passing port is closed by the plugging component. The fertilizer particles enter from the feed inlet and are temporarily stored in the storage hopper to ensure that the fertilizer particles do not enter the screening component. At this time, the sliding baffle is opened to open the discharge port, and the fertilizer particles fall out from the discharge port. After completion, the discharge port is closed, and at the same time, the material passing port is opened for the next screening work.

[0025] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0026] 1. By setting the storage hopper and the screening frame, a baffle is set on the screening frame to close or open the discharge port, separating the screening process and the discharging process, ensuring that the screening frame has enough time for screening. During discharging, the material passing port is closed by the plugging component to ensure that the fertilizer particles cannot enter the screening frame, ensuring the normal discharging of the screening frame. The cooperation between the storage hopper and the screening frame improves the screening quality of the fertilizer particles. Description of the Drawings

[0027] The drawings described herein are used to provide a further understanding of the embodiments of the utility model, form a part of this application, and do not constitute a limitation to the embodiments of the utility model. In the drawings:

[0028] Figure 1 is a schematic structural diagram of an embodiment of the utility model;

[0029] Figure 2 is a side view of the box body of the utility model;

[0030] Figure 3 is a schematic structural diagram of the screening frame of the utility model;

[0031] Figure 4 is a schematic structural diagram of the plugging component of the utility model;

[0032] Figure 5 is a schematic structural diagram of the reciprocating component of the utility model.

[0033] Marks in the drawings and corresponding component names:

[0034] 1 - Box body, 11 - Feeding port, 12 - Discharging port, 13 - Slide groove, 14 - Supporting feet, 2 - Screening box, 21 - Discharge port, 22 - Baffle, 23 - Slide block, 24 - Placing groove, 25 - Second electric telescopic rod, 3 - Reciprocating component, 31 - Driving plate, 32 - Driving hole, 33 - Rotating shaft, 34 - Driving rod, 35 - Motor, 4 - Storage hopper, 41 - Material passing port, 5 - Sealing component, 51 - Cover plate, 52 - First electric telescopic rod, 6 - Filter plate. Detailed implementation manner

[0035] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments and drawings. The illustrative embodiments of the present utility model and their descriptions are only used to explain the present utility model and do not limit the present utility model.

[0036] Embodiment 1 of the present invention provides a screening device for fertilizer production, as Figures 1 - 5 shown, including:

[0037] Box body 1, a feeding port 11 is opened at the top of the box body 1, and a discharging port 12 is opened at the bottom of the box body 1;

[0038] Screening component, the screening component includes a screening box 2 slidably arranged in the box body 1, and the screening box 2 is connected with a reciprocating component 3 for driving the screening box 2 to reciprocate; a discharge port 21 is opened on the side wall of the screening box 2, and a baffle 22 for closing or opening the discharge port 21 is slidably arranged on the screening box 2;

[0039] Storage hopper 4, the storage hopper 4 is located between the screening box 2 and the feeding port 11, a material passing port 41 matching the screening box 2 is opened at the bottom of the storage hopper 4, and a sealing component 5 is connected to the bottom of the screening box 2 to open or close the material passing port 41.

[0040] In the prior art, fertilizer particles directly pass through the discharge pipe after entering the inclined filter screen on the screening box. However, during the screening process, since there is no blocking structure between the discharge pipe and the filter screen, after the fertilizer particles fall onto the inclined filter screen, unqualified fertilizer particles with too fast sliding speed may slide out of the discharge pipe together with the qualified particles without being filtered, resulting in poor screening quality and problems such as time-consuming and laborious repeated filtering and screening.

[0041] To solve the above problems, this embodiment sets a storage hopper 4 and a screening box 2, and improves the screening quality of fertilizer particles by the cooperation of the storage hopper 4 and the screening box 2. Specifically, the working process of this embodiment is as follows:

[0042] During screening, the fertilizer particles enter the box body 1 from the feed inlet 11 and then fall into the storage hopper 4, ensuring that the fertilizer particles do not enter the screening assembly. At this time, the material passing port 41 is in an open state. Then, the fertilizer particles enter the screening frame 2 for screening. At this time, the discharge port 21 is closed by the baffle 22, and the reciprocating assembly 3 drives the screening frame 2 to move back and forth for vibration. When the fertilizer particles accumulate to a certain extent, the screening work stops.

[0043] During discharging, first, the material passing port 41 is closed. The fertilizer particles enter from the feed inlet 11 and are temporarily stored in the storage hopper 4. At this time, the sliding baffle 22 slides to open the discharge port 21, and the fertilizer particles fall out from the discharge port 21. After completion, the discharge port 21 is closed, and at the same time, the material passing port 41 is opened for the next screening work.

[0044] Furthermore, support feet 14 are provided at the bottom of the box body 1. The box body 1 is supported by the support feet 14, facilitating the discharged particles to be discharged from the discharge opening 12 after screening.

[0045] Furthermore, the blocking assembly 5 includes a cover plate 51 that is cooperatively connected with the material passing port 41, and a first electric telescopic rod 52 is connected to the top of the cover plate 51.

[0046] Specifically, as Figure 4 shown, the first electric telescopic rod 52 extends to drive the cover plate 51 to move downward away from the material passing port 41. At this time, the material passing port 41 is opened, and the fertilizer particles fall into the screening frame 2. Among them, to ensure that the fertilizer entering the storage hopper 4 can effectively fall into the screening frame 2, the storage hopper 4 is in a funnel shape. In addition, the cover plate 51 is inclined, and the inclination direction is opposite to that of the filter plate 6 in the first screening area, so as to ensure that when falling into the screening frame 2, it can fall again from the highest point of the filter plate 6 for screening.

[0047] After that, the first electric telescopic rod 52 retracts to drive the cover plate 51 to move upward to cooperate with the material passing port 41 again. At this time, the material passing port 41 is closed, and the fertilizer particles enter from the feed inlet 11 and are temporarily stored in the storage hopper 4.

[0048] According to another embodiment of the present invention, as Figure 2 and Figure 3 shown, two filter plates 6 are inclinedly arranged in the screening frame 2. The two filter plates 6 divide the screening frame 2 into a first screening area and a second screening area. There are two discharge ports 21, and the two discharge ports 21 are respectively located in the first screening area and the second screening area and are connected to the lower ends of the corresponding filter plates 6.

[0049] In this embodiment, fertilizer particles are screened by the inclined filter plate 6. In addition, the screening box 2 cooperates with the reciprocating component 3, and the reciprocating component 3 drives the screening component to move back and forth to generate vibration. The fertilizer particles on the filter plate 6 are dispersed during the vibration process, thus avoiding the blockage of the filter plate 6. Finally, the screened fertilizer particles will accumulate at the inclined lower end of the filter plate 6 and fall out through the opened discharge port 21.

[0050] Furthermore, the two filter plates 6 are inclined in opposite directions. Thus, the inclined lower ends of the two filter plates 6 are located on different sides of the box body 1, which is convenient for distinction and discharging.

[0051] Furthermore, there are two baffle plates 22, and the two baffle plates 22 are respectively arranged in cooperation with the two discharge ports 21. A placement groove 24 for slidingly cooperating with the corresponding baffle plate 22 is formed in the side wall of the screening box 2. Second electric telescopic rods 25 located in the corresponding placement grooves 24 are arranged at the tops of the two baffle plates 22.

[0052] Specifically, the baffle plate 22 cooperates with the discharge port 21 for blocking, and the second electric telescopic rod 25 drives the baffle plate 22 to slide in the placement groove 24.

[0053] When the second electric telescopic rod 25 contracts, the second electric telescopic rod 25 drives the baffle plate 22 to retract into the placement groove 24. At this time, the baffle plate 22 opens the discharge port 21 for discharging work.

[0054] After that, the second electric telescopic rod 25 extends, and the second electric telescopic rod 25 drives the baffle plate 22 to extend out of the placement groove 24 and cooperate with the discharge port 21 for blocking. At this time, the discharge port 21 is closed, and the screening box 2 can perform screening work.

[0055] According to another embodiment of the present invention, as Figure 2 and Figure 5 shown, the reciprocating component 3 includes:

[0056] A driving plate 31, which is connected to one side of the screening box 2, and a driving hole 32 is formed in the driving plate 31;

[0057] A rotating shaft 33, which is horizontally rotatably arranged in the box body 1. A driving rod 34 that passes through the driving hole 32 and slides in the driving hole 32 is sleeved on the rotating shaft 33. The driving rod 34 is connected in cooperation with the driving hole 32 to make the driving plate 31 move back and forth.

[0058] Specifically, the working process of the reciprocating component 3 is as follows:

[0059] The rotating shaft 33 rotates, driving the driving rod 34 sleeved on the rotating shaft 33 to start rotating. Since the driving rod 34 is restricted to slide in the driving hole 32, the driving rod 34 slides in the driving hole 32 while rotating, thereby driving the driving plate 31 to move. Since the driving plate 31 is connected to the screening box 2, and the screening box 2 is slidably arranged under the box body 1, under the restriction of the movement of the screening box 2, finally the driving rod 34 drives the screening box 2 to move back and forth on the box body 1.

[0060] One end of the rotating shaft 33 is provided with a motor 35. In this embodiment, the motor 35 is located on the box body 1 and provides power for the rotation of the rotating shaft 33 to ensure the normal operation of the subsequent reciprocating component 3.

[0061] In addition, to ensure the stable sliding of the screening box 2 on the box body 1, it is set that: the box body 1 is provided with a sliding groove 13 along the sliding direction of the screening box 2, and the screening box 2 is provided with a sliding block 23 that is slidably matched with the sliding groove 13. Specifically, four sliding blocks 23 are provided, and two are provided on both the upper and lower sides of the screening box 2, which on the one hand ensures the stable sliding of the screening box 2, and on the other hand positions the screening box 2.

[0062] The above specific implementation manners further elaborate on the purpose, technical solution and beneficial effects of the present invention. It should be understood that the above is only the specific implementation manner of the present invention and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A screening device for fertilizer production, characterized in that: include: A box body, wherein a feeding port is provided at the top of the box body and a feeding port is provided at the bottom of the box body; A screening component, wherein the screening component comprises a screening frame slidably arranged in the box body, the screening frame is connected to a reciprocating component for driving the screening frame to reciprocate; a discharge port is provided on a side wall of the screening frame, and a baffle for closing or opening the discharge port is slidably arranged on the screening frame; The material storage hopper is located between the screening frame and the feed port, a material through port cooperating with the screening frame is provided at the bottom of the material storage hopper, and a blocking component is connected to the bottom of the screening frame to open or close the material through port.

2. The screening device for fertilizer production according to claim 1, characterized in that: The blocking assembly comprises a cover plate which is connected with the material passage opening, and a first electric telescopic rod is connected to the top of the cover plate.

3. The screening device for fertilizer production according to claim 1, characterized in that: The storage hopper is in the shape of a funnel.

4. The screening device for fertilizer production according to claim 1, characterized in that: The round-trip components include: A driving plate, the driving plate is connected to one side of the screening frame, and a driving hole is opened on the driving plate; The rotating shaft is arranged in the box body for transverse rotation. A driving rod is sleeved on the rotating shaft and passes through the driving hole and slides in the driving hole. The driving rod is connected with the driving hole to make the driving plate move back and forth.

5. The screening device for fertilizer production according to claim 4, characterized in that: A motor is arranged at one end of the rotating shaft.

6. The screening device for fertilizer production according to claim 1, characterized in that: The box body is provided with a slide groove along the sliding direction of the screening frame, and the screening frame is provided with a sliding block which is slidably matched with the slide groove.

7. The screening device for fertilizer production according to claim 1, characterized in that: Two filter plates are arranged obliquely in the screening frame, and the two filter plates divide the screening frame into a first screening area and a second screening area. Two discharge ports are provided, and the two discharge ports are respectively located in the first screening area and the second screening area and connected to the corresponding lower ends of the filter plates.

8. The screening device for fertilizer production according to claim 7, characterized in that: There are two baffles, which are respectively matched with the two discharge ports. The side wall of the screening frame is provided with a placement groove which is slidably matched with the corresponding baffle. The top of the two baffles is provided with a second electric telescopic rod located in the corresponding placement groove.

9. The screening device for fertilizer production according to claim 8, characterized in that: The two filter plates are inclined in opposite directions.

10. The screening device for fertilizer production according to claim 1, characterized in that: The bottom of the box is provided with supporting feet.

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