Dust falling assembly for screening chemical fertilizer particles

Abstract

The utility model relates to the technical field of dust falling devices, in particular to a dust falling assembly for screening chemical fertilizer particles, which comprises a loading frame and a porous sieve plate arranged in the loading frame, a feeding port is arranged at the top of the loading frame, a guide column is mounted at the inner top of the loading frame, the porous sieve plate is slidably arranged on the guide column, and the porous sieve plate is arranged in the loading frame. In the use process, granular chemical fertilizer with the large particle size is collected into the screening cavity, granular chemical fertilizer with the moderate particle size can fall into the dust falling cavity and fly to the fan blade area in the rotating state from the lower discharging port after being guided by the material guiding groove, all the immediately falling chemical fertilizer particles can be stirred by the fan blades to the periphery, and therefore the falling chemical fertilizer particles are raised again; the raised chemical fertilizer particles can be completely separated from the attached dust in the dust falling cavity, and the separated dust is collected into the dust collecting groove through the negative pressure generator, so that the aim of effectively falling dust for all chemical fertilizers can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust falling device technical field especially relates to a dust falling assembly for chemical fertilizer particle screening. BACKGROUND

[0002] Chemical fertilizer needs to be screened before packaging to ensure that the chemical fertilizer is evenly distributed in the fertilization process, prevent uneven fertilization from causing local concentration to be too high or too low, and facilitate accurate measurement of the fertilization amount according to the crop demand, and in the process of screening the chemical fertilizer, dust diffusion often occurs, and the prior art usually blows away the dust flying out of the filter screen through a fan.

[0003] For example, the Chinese patent with the application number CN202121669879.0 discloses an efficient dust removal device for organic fertilizer production, which comprises support columns, a charging frame, a filter screen, a support plate, springs, a movable rod, and a placement plate. The charging frame is provided with support columns on both sides at the lower part. The charging frame is provided with a support plate on one side at the upper part. The support plate is provided with a movable rod at the lower part in a sliding manner. The movable rod and the support plate are provided with springs therebetween. The movable rod is provided with a placement plate at the upper side. The placement plate is in contact with the inner wall of the charging frame. The cooperation of the fan and the motor can accelerate the blowing of dust and improve the efficiency of dust removal. The cooperation of the servo motor, the roller, the brush, and the gear realizes the adsorption function of dust and reduces the diffusion of dust in the air. However, in actual use, when the amount of chemical fertilizer particles is large, even if the placement plate is shaken up and down, dust will still accumulate locally, causing more chemical fertilizer in the middle and lower regions, i.e., near the placement plate region, to still be unable to separate smoothly from the dust, so that it can only achieve partial dust removal function. SUMMARY

[0004] In view of the above, the purpose of the utility model is to provide a dust falling assembly for chemical fertilizer particle screening to solve the technical problem that when the amount of chemical fertilizer particles is large, all chemical fertilizers cannot achieve effective dust falling in the prior art.

[0005] To achieve the above purpose, the utility model provides a dust falling assembly for chemical fertilizer particle screening, which comprises a charging frame and a porous sieve plate arranged in the charging frame. The top of the charging frame is provided with a feeding port. The inner top of the charging frame is provided with a guide column. The porous sieve plate is arranged on the guide column in a sliding manner. A spring is arranged on the guide column and between the end of the guide column and the porous sieve plate. The inner top of the charging frame is also provided with a guide chute, which is arranged below the porous sieve plate. The dust falling assembly further comprises:

[0006] A partition plate is arranged in the charging frame and divides the charging frame into a screening cavity and a dust falling cavity. The partition plate is provided with a dust collecting groove extending into the dust falling cavity. A negative pressure generator is arranged in the screening cavity on the dust collecting groove.

[0007] a fan blade, which is installed on the charging frame through a rotating shaft, a cam is installed on the rotating shaft, the outer edge of the cam abuts against the side end of the multi-hole sieve plate, and the side lower discharge port of the guide chute faces the fan blade;

[0008] a discharge chute, which is installed in the charging frame and is arranged below the fan blade;

[0009] a driving mechanism for driving the rotating shaft to rotate.

[0010] Further, the driving mechanism comprises:

[0011] a driving motor, which is installed on the top of the charging frame;

[0012] a driving wheel, which is installed on the output end of the driving motor;

[0013] a driven wheel, which is coaxially installed on the top end of the rotating shaft and is connected with the driving wheel through a synchronous belt.

[0014] Further, the discharge chute is in an arc-shaped concave structure, and a discharge port is arranged in the middle of the discharge chute.

[0015] Further, reinforcing members are arranged on both sides of the discharge port of the discharge chute, and the reinforcing members are detachably installed on the inner side wall of the charging frame.

[0016] Further, the side end of the multi-hole sieve plate is arranged in an inclined manner, and the inclined side end faces the other side of the guide chute.

[0017] Further, the lower discharge port of the other side of the guide chute is arranged in the screening cavity.

[0018] The fertilizer granule screening dust-reducing assembly has the advantages that, when used, the granular fertilizer with a large particle size is collected into the screening cavity, the granular fertilizer with a moderate particle size falls into the dust-reducing cavity, all the fertilizer granules falling down are pushed to the periphery by the fan blade, the falling fertilizer granules are lifted again, the lifted fertilizer granules completely separate from the attached dust in the dust-reducing cavity, the separated dust is collected into the dust collecting groove by the negative pressure generator, and the purpose of effectively reducing dust for all the fertilizer is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical scheme of the utility model or the prior art clearer, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0020] Figure 1 It is the assembly schematic view of the driving mechanism and part structure in the utility model;

[0021] Figure 2 It is the assembly schematic view of the driving mechanism and another part structure in the utility model;

[0022] Figure 3 It is the structure schematic view of the utility model;

[0023] Figure 4 It is the structure schematic view of the material guide groove in the utility model;

[0024] Figure 5 It is the structure schematic view of the multi-hole sieve plate in the utility model.

[0025] The marks in the drawing are:

[0026] 1, charging frame; 2, multi-hole sieve plate; 3, inlet; 4, guide column; 5, spring; 6, material guide groove; 7, partition; 8, dust collection groove; 9, negative pressure generator; 10, fan blade; 11, rotating shaft; 12, cam; 13, discharge groove; 14, driving motor; 15, driving wheel; 16, driven wheel; 17, synchronous belt; 18, discharge port; 19, reinforcing member. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model will be further described in detail below in combination with specific embodiments.

[0028] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The terms "first", "second" and similar terms used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships, which may change accordingly when the absolute position of the described object changes.

[0029] The first aspect of the present application provides a dust falling assembly for fertilizer particle screening, as shown in Figure 1 、 Figure 2 、 Figure 3 The dust falling assembly includes a loading frame 1 and a perforated sieve plate 2 arranged in the loading frame 1. The top of the loading frame 1 is provided with a feeding port 3. The inner top of the loading frame 1 is provided with a guide column 4. The perforated sieve plate 2 is slidably arranged on the guide column 4. A spring 5 is arranged on the guide column 4 and located between the end of the guide column 4 and the perforated sieve plate 2. The inner top of the loading frame 1 is further provided with a guide chute 6, which is located below the perforated sieve plate 2. The dust falling assembly further includes:

[0030] A partition plate 7 is arranged in the loading frame 1 and divides the loading frame 1 into a screening cavity and a dust falling cavity. The partition plate 7 is provided with a dust collecting groove 8 extending into the dust falling cavity. A negative pressure generator 9 is arranged in the dust collecting groove 8 in the screening cavity.

[0031] A fan blade 10 is arranged on the loading frame 1 through a rotating shaft 11. The rotating shaft 11 is provided with a cam 12. The outer edge of the cam 12 abuts against the side end of the perforated sieve plate 2. The lower discharge port of one side of the guide chute 6 faces the fan blade 10.

[0032] A discharge chute 13 is arranged in the loading frame 1 and located below the fan blade 10.

[0033] A driving mechanism is arranged for driving the rotating shaft 11 to rotate.

[0034] In the present embodiment, the driving mechanism includes:

[0035] A driving motor 14 is arranged on the top of the loading frame 1.

[0036] A driving wheel 15 is arranged on the output end of the driving motor 14.

[0037] The driven wheel 16 is coaxially installed on the top end of the rotating shaft 11, and is connected with the driving wheel 15 through the synchronous belt 17.

[0038] In use, the driving motor 14 is started to drive the driving wheel 15 to rotate, and the rotating shaft 11 is driven to rotate through the synchronous belt 17 and the driven wheel 16, and the cam 12 and the fan blade 10 are driven to rotate synchronously.

[0039] Then, the fertilizer particles to be screened are placed on the perforated sieve plate 2 in the loading frame 1 through the feeding port 3, and the perforated sieve plate 2 is reciprocated under the pushing of the outer edge of the cam 12 and the elastic force of the spring 5 on the guide column 4, so as to screen the fertilizer particles thereon. The fertilizer particles with large particle size cannot fall through the screen holes of the perforated sieve plate 2 and fall into the corresponding guide chute 6 on one side through the inclined end, and are collected in the screening cavity. The fertilizer particles with moderate particle size fall through the screen holes of the perforated sieve plate 2 and fall into the guide chute 6 on the other side, and are collected in the dust falling cavity.

[0040] The fertilizer particles with moderate particle size are guided by the guide chute 6 and fly to the area of the fan blade 10 in the rotating state through the lower discharge port, and all the fertilizer particles falling down are pushed by the fan blade 10 to the four directions, so that the falling fertilizer particles are lifted again. The lifted fertilizer particles completely separate from the attached dust in the dust falling cavity, and the separated dust is collected into the dust collecting groove 8 by the negative pressure generator 9. The fertilizer particles with moderate particle size after dust falling are discharged through the lower discharge port 18 and finally collected.

[0041] In this embodiment, as shown in Figure 2 , the discharge chute 13 has an arc-shaped concave structure, and the discharge port 18 is arranged in the middle of the discharge chute 13. When the dust falling assembly is applied, the fertilizer particles in the discharge chute 13 can be smoothly discharged through the discharge port, so as to avoid the waste of fertilizer caused by the screening process.

[0042] In this embodiment, as shown in Figure 2 , the discharge chute 13 is provided with reinforcing members 19 on both sides of the discharge port 18. The reinforcing members 19 are detachably installed on the inner side wall of the loading frame 1, so that the discharge chute 13 can withstand the pressure of a sufficient amount of fertilizer, and can be disassembled and cleaned after use.

[0043] In this embodiment, as shown in Figure 1 , Figure 2 , Figure 5 , the side end of the perforated sieve plate 2 is inclined, and the inclined side end faces the other side of the guide chute 6. The discharge port at the lower end of the other side of the guide chute 6 is arranged in the screening cavity, so that the fertilizer particles with large particle size can be screened in time, and the screen holes of the perforated sieve plate 2 are prevented from being blocked.

[0044] Those skilled in the art will understand that the above discussion of any of the embodiments is merely exemplary in nature and is not intended to imply that the scope of the present application, including the claims, is limited to these examples; the above embodiments or technical features among different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0045] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications and variations are intended to be encompassed by the appended claims.

Claims

1. A dust falling assembly for screening chemical fertilizer particles, comprising a charging frame (1) and a porous sieve plate (2) arranged in the charging frame (1), a feeding port (3) is formed in the top of the charging frame (1), a guide column (4) is mounted on the inner top of the charging frame (1), the porous sieve plate (2) is slidingly arranged on the guide column (4), a spring (5) is sleeved on the guide column (4), and the spring (5) is arranged between the end of the guide column (4) and the porous sieve plate (2), characterized in that, The inner top of the charging frame (1) is also provided with a material guiding groove (6) which is arranged below the porous screen plate (2), and the dust falling assembly further comprises: a partition plate (7) which is arranged in the charging frame (1) and divides the charging frame (1) into a screening cavity and a dust falling cavity, and the partition plate (7) is provided with a dust collecting groove (8) which extends to the dust falling cavity, and the dust collecting groove (8) is provided with a negative pressure generator (9) in the screening cavity; a fan blade (10) which is arranged on the charging frame (1) through a rotating shaft (11), and the rotating shaft (11) is provided with a cam (12), the outer edge of the cam (12) abuts against the side end of the porous screen plate (2), and the lower discharging port of one side of the material guiding groove (6) faces the fan blade (10); a discharging groove (13) which is arranged in the charging frame (1) and is arranged below the fan blade (10); a driving mechanism for driving the rotating shaft (11) to rotate.

2. The dust fall assembly for screening of chemical fertilizer granules according to claim 1, characterized by, The driving mechanism comprises: a driving motor (14) which is arranged on the top of the charging frame (1); a driving wheel (15) which is arranged on the output end of the driving motor (14); a driven wheel (16) which is coaxially arranged on the top end of the rotating shaft (11), and the driven wheel (16) is connected with the driving wheel (15) through a synchronous belt (17).

3. The dust fall assembly for screening of chemical fertilizer granules according to claim 1, characterized by, The discharging groove (13) has an arc-shaped concave structure, and the discharging groove (13) is provided with a discharging port (18) in the middle part.

4. The dust fall assembly for screening of chemical fertilizer granules according to claim 3, characterized by, The discharging groove (13) is provided with a reinforcing piece (19) on both sides of the discharging port (18), and the reinforcing piece (19) is detachably arranged on the inner side wall of the charging frame (1).

5. The dust fall assembly for screening of chemical fertilizer granules according to claim 1, characterized by, The side end of the porous screen plate (2) is arranged in an inclined manner, and the inclined side end faces the other side of the material guiding groove (6).

6. The dust fall assembly for screening of chemical fertilizer particles according to claim 5, wherein The lower discharging port of the other side of the material guiding groove (6) is arranged in the screening cavity. The lower discharging port of the other side of the material guiding groove (6) is arranged in the screening cavity.

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