Screening equipment for bulk blending fertilizer for granular fertilizer

Abstract

The utility model discloses a bulk blending fertilizer screening device for granular fertilizer, and relates to the technical field of granular fertilizer processing, the bulk blending fertilizer screening device comprises a main machine body and a screening assembly, the bottom of the main machine body is provided with supporting column feet, and the screening assembly is arranged in the main machine body; the screening assembly comprises a limiting block, a limiting through groove, a limiting mounting block, a first screening net, a second screening net, a discharging opening, a material blocking plate and a material collecting drawer, the limiting through groove is formed in the limiting block, the limiting mounting block is connected into the limiting through groove, and the first screening net is arranged at the upper end of the limiting mounting block; and meanwhile, a second screening net is arranged below the first screening net, a discharging opening is formed in the outer side of the interior of the main machine body, and a material blocking plate is installed in the discharging opening. According to the screening equipment for the bulk blending fertilizer for the granular fertilizer, screened fertilizer can be rapidly collected in a centralized mode, meanwhile, the situation that the fertilizer blocks the screening net is avoided, and the overall use efficiency of the screening equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of granular fertilizer processing, and particularly relates to a screening device for blending fertilizers for granular fertilizers. Background Technique

[0002] Granular fertilizer refers to granular fertilizer, which is made of chemical fertilizers such as superphosphate or ammonium nitrate, or is made by mixing organic fertilizers and superphosphate. It is generally applied during sowing to promote the growth of seedlings, and is abbreviated as granulated fertilizer. Blended fertilizer, also known as formulated fertilizer and BB fertilizer, is made from two or more single fertilizers or compound fertilizers with similar particle sizes as raw materials, and is mechanically blended in a certain proportion. It is a mixture of various raw materials. Blended fertilizers can be flexibly fertilized according to different soil and geological conditions. However, there are certain unqualified particles inside the blended fertilizer. In order to improve the processing efficiency of granular fertilizers, a screening device is needed. However, the existing screening devices still have the following deficiencies:

[0003] For example, the utility model with the application number 202322368228.3 discloses a fertilizer particle screening device. This utility model buffers and flows onto the second sieve plate through a guide plate, which can greatly avoid the extrusion between granular fertilizers and cause breakage. The second sieve plate can re-screen and remove less fines generated between the flowing granular fertilizers. Compared with the existing granular fertilizers screened through a sieve mesh, it avoids the large degree of mutual extrusion between granular fertilizers during feeding and causes breakage. At the same time, it also fully screens and removes the small amount of fines mixed in the granular fertilizers. However, for comparative documents similar to the above application, when the existing screening devices are in use, since most screening devices are not easy to quickly collect the sieved fertilizers, the fertilizers are likely to accumulate inside the device, affecting subsequent screening, resulting in the problem of decreased practicability and reduced use efficiency of the screening device.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a screening device for blending fertilizers for granular fertilizers is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a screening device for blending fertilizers for granular fertilizers to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A screening device for blended fertilizers for granular fertilizers, comprising a main body and a screening assembly. Support column feet are installed at the bottom of the main body. A screening assembly is arranged inside the main body, and the screening assembly includes a limit block, a limit through groove, a limit mounting block, a first sieve mesh, a second sieve mesh, a discharge port, a baffle plate, and an aggregate drawer. A limit through groove is opened inside the limit block, and a limit mounting block is connected inside the limit through groove. A first sieve mesh is arranged at the upper end of the limit mounting block. A second sieve mesh is arranged below the first sieve mesh. A discharge port is opened on the outer side inside the main body, and a baffle plate is installed inside the discharge port. An aggregate drawer is connected to the lower end inside the main body. An anti-blocking assembly is arranged outside the main body.

[0007] Further, a top cover is arranged at the upper end of the main body, and a feed port is arranged in the middle of the upper end of the top cover.

[0008] Further, the internal dimension of the limit through groove matches the external dimension of the limit mounting block, and the limit mounting block is embedded in the limit block through the limit through groove.

[0009] Further, the internal dimension of the discharge port matches the external dimension of the baffle plate, and the baffle plate is connected to the main body through the discharge port.

[0010] Further, the anti-blocking assembly includes a first limit frame, a servo motor, and a lead screw. A servo motor is installed at the front end of the first limit frame, and a lead screw is connected to the front end of the servo motor.

[0011] Further, the anti-blocking assembly further includes a movable slider, a material-pushing cross bar, and a second limit frame. The movable slider is connected to the outside of the lead screw. A material-pushing cross bar is installed on the outside of the movable slider. The second limit frame is arranged below the first limit frame.

[0012] Further, the outer side of the first limit frame is closely attached to the outer side of the main body, and the first limit frame is threadedly connected to the main body.

[0013] Further, the external dimension of the movable slider matches the internal dimension of the first limit frame, and the movable slider is slidably connected to the first limit frame through the lead screw.

[0014] The present utility model provides a screening device for blended fertilizers for granular fertilizers, having the following beneficial effects:

[0015] 1. By setting up the screening component, when the screening equipment for blended fertilizer of granular fertilizer is in use, the limiting block can be fixedly installed on both sides inside the main body through fasteners. The first sieve mesh is limited and installed inside the main body by using the limiting through groove and the limiting installation block. Similarly, the second sieve mesh is limited inside the main body. At the same time, the inclined sieve mesh enables the fertilizer to directly discharge through the discharge port along with gravity after screening. The baffle plate is used to block the blended fertilizer during the screening process. Meanwhile, the aggregate drawer installed at the bottom of the main body is convenient for centralized collection of unqualified particles, improving the convenience during the use of the screening equipment.

[0016] 2. By setting up the anti-blocking component, when the screening equipment for blended fertilizer of granular fertilizer is in use, the first limiting frame can be fixedly installed on the right side outside the main body through fastening bolts. The servo motor operates to drive the screw rod to rotate, causing the movable slider connected to the outside of the screw rod to slide inside the first limiting frame accordingly, and then driving the material stirring cross bar to move inside the main body. When the material stirring cross bar moves, the blended fertilizer is turned on the surface of the first sieve mesh, further improving the screening convenience of the blended fertilizer and avoiding the blockage of the sieve mesh by the blended fertilizer. Similarly, the second limiting frame is used to turn the granular fertilizer on the surface of the second sieve mesh, increasing the initiative during the use of the screening equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional unfolded structural schematic diagram of a screening equipment for blended fertilizer of granular fertilizer according to the present utility model;

[0018] Figure 2 is a three-dimensional sectional structural schematic diagram of the screening component of a screening equipment for blended fertilizer of granular fertilizer according to the present utility model;

[0019] Figure 3 is a three-dimensional sectional structural schematic diagram of the first limiting frame of a screening equipment for blended fertilizer of granular fertilizer according to the present utility model.

[0020] In the figure: 1. Main body; 2. Support column feet; 3. Top cover; 4. Feed inlet; 5. Screening component; 501. Limiting block; 502. Limiting through groove; 503. Limiting installation block; 504. First sieve mesh; 505. Second sieve mesh; 506. Discharge port; 507. Baffle plate; 508. Aggregate drawer; 6. Anti-blocking component; 601. First limiting frame; 602. Servo motor; 603. Screw rod; 604. Movable slider; 605. Material stirring cross bar; 606. Second limiting frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] As shown Figures 1 to 3 in the figure, a screening device for blended fertilizer for granular fertilizer includes a main body 1 and a screening component 5. Support column feet 2 are installed at the bottom of the main body 1. A screening component 5 is arranged inside the main body 1. The screening component 5 includes a limit block 501, a limit through groove 502, a limit mounting block 503, a first sieve mesh 504, a second sieve mesh 505, a discharge port 506, a baffle plate 507 and an aggregate drawer 508. A limit through groove 502 is opened inside the limit block 501, and a limit mounting block 503 is connected inside the limit through groove 502. A first sieve mesh 504 is arranged at the upper end of the limit mounting block 503. At the same time, a second sieve mesh 505 is arranged below the first sieve mesh 504. A discharge port 506 is opened on the outer side inside the main body 1, and a baffle plate 507 is installed inside the discharge port 506. An aggregate drawer 508 is connected to the lower end inside the main body 1. A top cover 3 is arranged at the upper end of the main body 1, and a feed port 4 is arranged in the middle of the upper end of the top cover 3. The internal dimension of the limit through groove 502 matches the external dimension of the limit mounting block 503, and the limit mounting block 503 is embedded in the limit block 501 through the limit through groove 502. The internal dimension of the discharge port 506 matches the external dimension of the baffle plate 507, and the baffle plate 507 is connected to the main body 1 through the discharge port 506. The limit block 501 is fixedly installed on both sides inside the main body 1 through fasteners, and the two limit blocks 501 are arranged at different heights inside the main body 1. The internal dimension of the limit through groove 502 opened inside the limit block 501 matches the external dimension of the limit mounting block 503 added at the lower end of the first sieve mesh 504, so that the first sieve mesh 504 is limit-mounted inside the main body 1 through the cooperation of the limit through groove 502 and the limit mounting block 503. Similarly, the second sieve mesh 505 is limited inside the main body 1. The blended fertilizer is screened by using the first sieve mesh 504 in cooperation with the second sieve mesh 505. At the same time, the inclined sieve mesh enables the fertilizer to directly pass through the discharge port 506 by gravity after screening, and the baffle plate 507 is used to block the blended fertilizer during the screening process. At the same time, the aggregate drawer 508 installed at the bottom of the main body 1 is convenient for centralized collection of unqualified particles, improving the convenience during the use of the screening device.

[0023] As Figure 1 shown Figure 3As shown in the figure, an anti-clogging component 6 is arranged outside the main body 1 of the machine. The anti-clogging component 6 includes a first limit frame 601, a servo motor 602 and a lead screw 603. The servo motor 602 is installed at the front end of the first limit frame 601, and the lead screw 603 is connected to the front end of the servo motor 602. The anti-clogging component 6 further includes a movable slider 604, a material-pushing cross bar 605 and a second limit frame 606. The movable slider 604 is connected to the outside of the lead screw 603. At the same time, the material-pushing cross bar 605 is installed outside the movable slider 604. The second limit frame 606 is arranged below the first limit frame 601. The outside of the first limit frame 601 is closely attached to the outside of the main body 1 of the machine, and the first limit frame 601 is threadedly connected to the main body 1 of the machine. The external dimension of the movable slider 604 matches the internal dimension of the first limit frame 601, and the movable slider 604 is slidably connected to the first limit frame 601 through the lead screw 603. The first limit frame 601 is fixedly installed on the right side outside the main body 1 of the machine through a fastening bolt, and the servo motor 602 is fixedly installed at the front end of the first limit frame 601 by cooperating with the fastening bolt. The output shaft of the servo motor 602 is connected to the lead screw 603 through a coupling. When the servo motor 602 operates, the lead screw 603 rotates, so that the movable slider 604 connected to the outside of the lead screw 603 slides inside the first limit frame 601, and drives the material-pushing cross bar 605 to move inside the main body 1 of the machine. At the same time, the material-pushing cross bar 605 is arranged above the first sieve mesh 504 and is in contact with the surface of the first sieve mesh 504. Therefore, when the material-pushing cross bar 605 moves, the blended fertilizer is turned on the surface of the first sieve mesh 504, further improving the screening convenience of the blended fertilizer, and at the same time preventing the blended fertilizer from clogging the sieve mesh. Similarly, the second limit frame 606 is used to turn the granular fertilizer on the surface of the second sieve mesh 505, increasing the initiative during the use of the screening equipment.

[0024] In summary, for the screening equipment of the blended fertilizer for granular fertilizer, during use, first, the supporting column feet 2 installed at the bottom of the main body 1 enhance the stability of the equipment during use. The top cover 3 is fixedly installed at the upper end of the main body 1, and the blended fertilizer is conveyed into the interior of the main body 1 through the feed port 4 provided at the upper end of the top cover 3. The limit blocks 501 are fixedly installed on both sides inside the main body 1 through fasteners, and the two limit blocks 501 are arranged at different heights inside the main body 1. The internal dimensions of the limit through slots 502 opened inside the limit blocks 501 match the external dimensions of the limit installation blocks 503 added at the lower end of the first sieve mesh 504. Thus, the first sieve mesh 504 is limit-installed inside the main body 1 through the cooperation of the limit through slots 502 and the limit installation blocks 503. Similarly, the second sieve mesh 505 is limited inside the main body 1. The blended fertilizer is screened by the cooperation of the first sieve mesh 504 and the second sieve mesh 505. At the same time, the inclined sieve mesh enables the fertilizer to directly pass through the discharge port 506 by gravity after screening, and the baffle plate 507 blocks the blended fertilizer during the screening process. Meanwhile, the aggregate drawer 508 installed at the bottom of the main body 1 facilitates the centralized collection of unqualified particles, improving the convenience during the use of the screening equipment. Then, the first limit frame 601 is fixedly installed on the right side outside the main body 1 through fastening bolts, and the servo motor 602 is fixedly installed at the front end of the first limit frame 601 in cooperation with the fastening bolts. The output shaft of the servo motor 602 is connected with a lead screw 603 through a coupling. When the servo motor 602 operates, it drives the lead screw 603 to rotate, causing the movable slider 604 connected to the outside of the lead screw 603 to slide inside the first limit frame 601, and then driving the material stirring cross bar 605 to move inside the main body 1. At the same time, the material stirring cross bar 605 is arranged above the first sieve mesh 504 and is in contact with the surface of the first sieve mesh 504. Thus, when the material stirring cross bar 605 moves, the blended fertilizer is turned on the surface of the first sieve mesh 504, further improving the convenience of screening the blended fertilizer and avoiding the clogging of the sieve mesh by the blended fertilizer. Similarly, the second limit frame 606 is used to turn the granular fertilizer on the surface of the second sieve mesh 505, increasing the initiative during the use of the screening equipment.

[0025] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A screening device for blended fertilizer for granular fertilizer, comprising a main body (1) and a screening assembly (5), characterized in that, The bottom of the main body (1) is provided with support feet (2). Inside the main body (1), a screening assembly (5) is arranged, and the screening assembly (5) includes a limit block (501), a limit through groove (502), a limit mounting block (503), a first sieve mesh (504), a second sieve mesh (505), a discharge port (506), a baffle plate (507) and an aggregate drawer (508). A limit through groove (502) is opened inside the limit block (501), and a limit mounting block (503) is connected inside the limit through groove (502). The upper end of the limit mounting block (503) is provided with a first sieve mesh (504), and a second sieve mesh (505) is arranged below the first sieve mesh (504). A discharge port (506) is opened on the outer side inside the main body (1), and a baffle plate (507) is installed inside the discharge port (506). The lower end inside the main body (1) is connected with an aggregate drawer (508). An anti-blocking assembly (6) is arranged outside the main body (1).

2. The screening device for the blended fertilizer of granular fertilizer according to claim 1, characterized in that A top cover (3) is arranged at the upper end of the main body (1), and a feed inlet (4) is arranged in the middle of the upper end of the top cover (3).

3. The screening device for the blended fertilizer of granular fertilizer according to claim 1, characterized in that, The internal dimension of the limit through groove (502) matches the external dimension of the limit mounting block (503), and the limit mounting block (503) is connected with the limit block (501) in an embedded manner through the limit through groove (502).

4. The screening device for the blended fertilizer of granular fertilizer according to claim 1, characterized in that, The internal dimension of the discharge port (506) matches the external dimension of the baffle plate (507), and the baffle plate (507) is connected with the main body (1) through the discharge port (506).

5. The screening device for the blended fertilizer of granular fertilizer according to claim 1, characterized in that, The anti-blocking assembly (6) includes a first limit frame (601), a servo motor (602) and a lead screw (603). The servo motor (602) is installed at the front end of the first limit frame (601), and the lead screw (603) is connected to the front end of the servo motor (602).

6. The screening device for the blended fertilizer for granular fertilizer according to claim 5, characterized in that, The anti-blocking assembly (6) further includes a movable slider (604), a material-pushing cross bar (605) and a second limit frame (606). The movable slider (604) is connected to the outside of the lead screw (603), and the material-pushing cross bar (605) is installed on the outside of the movable slider (604). The second limit frame (606) is arranged below the first limit frame (601).

7. The screening device for the blended fertilizer of granular fertilizer according to claim 6, characterized in that, The outer side of the first limit frame (601) is closely attached to the outer side of the main body (1), and the first limit frame (601) is threadedly connected with the main body (1).

8. The screening device for the blended fertilizer of granular fertilizer according to claim 6, characterized in that, The external dimension of the movable slider (604) matches the internal dimension of the first limit frame (601), and the movable slider (604) is slidably connected with the first limit frame (601) through the lead screw (603).

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