阅读说明：本技术 一种肥料生产后优劣筛选装置 (Excellence sieving mechanism after fertilizer production ) 是由 陈艳飞 夏鹏 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种肥料生产后优劣筛选装置；组成包括支撑架、能够转动的筛选网笼和筛选搅动机构；支撑架的前后两端分别固定设置有用于承载所述筛选搅动机构的支撑轴承A和支撑轴承B；筛选搅动机构对应的转动轴的两端位置分别设置有用于承载筛选网笼的支撑轴承C和支撑轴承D。本发明采用的是正反交替的转动、翻动筛选,效率更高,而且在运行时刷毛会不停对筛选网笼进行刷动,以此减少有机肥堵塞筛网筛孔的情况,同时也能防止有机肥附着在筛选网笼上的情况；另外还可以经转动轴的右端通入蒸汽,所述蒸汽再从热气输出孔排出,在转动轴转动的同时对筛选网笼内部的有机肥进一步干燥。(The invention discloses a screening device for advantages and disadvantages after fertilizer production; the device comprises a support frame, a screening net cage capable of rotating and a screening stirring mechanism; a supporting bearing A and a supporting bearing B for bearing the screening and stirring mechanism are respectively and fixedly arranged at the front end and the rear end of the supporting frame; and a supporting bearing C and a supporting bearing D which are used for bearing the screening net cage are respectively arranged at the two ends of the rotating shaft corresponding to the screening and stirring mechanism. The invention adopts positive and negative alternate rotation and turning screening, the efficiency is higher, and the brush hair can continuously brush the screening net cage during the operation, thereby reducing the condition that organic fertilizer blocks the sieve pores of the screen and preventing the organic fertilizer from being attached to the screening net cage; in addition, steam can be introduced through the right end of the rotating shaft and then discharged from the hot gas output hole, and organic fertilizers in the screening net cage are further dried while the rotating shaft rotates.)

1. A screening device for advantages and disadvantages after fertilizer production is characterized in that;

the screening device comprises a support frame (1) made of stainless steel materials, so that the bearing effect of the whole screening device is realized;

the screening device also comprises a screening net cage (2) and a screening stirring mechanism (3) which can rotate; the screening net cage (2) and the screening stirring mechanism (3) are respectively arranged on the support frame (1), and screening of fertilizer particles is realized through rotation matching;

the screening device also comprises a fertilizer particle feeding port (4), a screening tail discharge port (5) and a screening lower discharge port (6);

a supporting bearing A (7) and a supporting bearing B (8) which are used for bearing the screening and stirring mechanism (3) are respectively and fixedly arranged at the front end and the rear end of the supporting frame (1), and the screening and stirring mechanism (3) is integrally arranged on the supporting frame (1) through the supporting bearing A (7) and the supporting bearing B (8);

the screening stirring mechanism (3) is provided with the support bearing C (9) and the support bearing D (10) that are used for bearing screening cylinder mould (2) respectively in the both ends position of axis of rotation (3A) that corresponds, and the medial surface that support bearing C (9) and support bearing D (10) are passed through support column (11) and are connected with screening cylinder mould (2) in the outside.

2. The device for screening the advantages and disadvantages after fertilizer production according to claim 1, wherein; the screening tail discharge hole (5) is fixed with the rear end of the support frame (1) and corresponds to the tail of the screening net cage (2); the screening lower discharge port (6) is fixed with the support frame (1) and corresponds to the lower part of the screening net cage (2).

3. The device for screening the advantages and disadvantages after fertilizer production according to claim 1, wherein; the screening net cage (2) and the screening stirring mechanism (3) are integrally and transversely obliquely arranged on the support frame (1), so that the fertilizer particles inside are easy to turn under the action of gravity.

4. The device for screening the advantages and disadvantages after fertilizer production according to claim 1, wherein; the screening net cage (2) is driven to rotate by a rotating motor (17) arranged on the support frame (1), and the rotating mode of the rotating motor (17) is that the screening net cage rotates for a large half of a circle in the forward direction and rotates for a large half of a circle in the reverse direction, and the screening net cage follows a forward and reverse alternate continuous mode.

5. The device for screening the advantages and disadvantages after fertilizer production according to claim 1, wherein; screening rabbling mechanism (3) correspond axis of rotation (3A) inside be hollow structure, and its right-hand member is steam input interface end (3B), and it has a plurality of inside to be hollow stirring leaf (3C) to distribute on axis of rotation (3A), and it has steam delivery outlet (3D) to distribute on stirring leaf (3C), and its effect is the right-hand member that can pass through axis of rotation (3A) and lets in steam, steam is discharged from steam delivery outlet 3D again for further drying is realized to the inside fertilizer granule of screening cylinder mould (2), does benefit to and turns.

6. The device for screening the advantages and disadvantages after fertilizer production according to claim 1, wherein; the upper ends of the supporting bearing A (7) and the supporting bearing B (8) are provided with a bristle frame (13) through a fixed frame A (15) and a fixed frame B (16), the lower end of the bristle frame (13) is provided with a row of bristles (14), and the bristle frame (13) is just positioned above the screening net cage (2) so that the bristles (14) are in contact with the outer side of the screening net cage (2); fertile grain feed mouth (4) are fixed in the left end of screening cylinder mould (2) through mount A (15) to the export of machine fertile feed inlet (4) stretches into in screening cylinder mould (2) along between screening cylinder mould (2) and axis of rotation (3A).

7. The device for screening the advantages and disadvantages after fertilizer production according to claim 1, wherein; when the screening method is implemented, the organic fertilizer particles to be screened are delivered into the fertilizer particle feeding port (4) through the hoister, are transmitted into the screening cylinder mould (2) through the fertilizer particle feeding port (4), the rotating motor (17) is started to rotate at a constant speed, the rotating motor (17) rotates in a forward direction for more than half a circle and then rotates in a reverse direction for more than half a circle in a forward and reverse alternating continuous mode, so that the rotating motor (17) drives the screening cylinder mould (2) to rotate forward and reverse continuously, the screening stirring mechanism (3) is started to rotate at the same time, the stirring blades (3C) rotate to turn over the fertilizer particles inside, the screening stirring mechanism (3) is matched with the screening cylinder mould (2) to form good and bad screening of the fertilizer particles, the screened uniform fine particles are collected through the screening lower discharge port (6), the agglomerated coarse particles are discharged through the screening tail discharge port (5), and in the whole screening process, screening cylinder mould (2) are along with rotating together, and brush hair (14) can incessantly brush screening cylinder mould (2) simultaneously to this reduces the condition that the fertilizer blockked up the screen cloth sieve mesh, also can prevent the condition that the fertilizer adheres to on screening cylinder mould (2) simultaneously.

Technical Field

The invention relates to the field of screening of advantages and disadvantages of organic fertilizers, in particular to a screening device for advantages and disadvantages after fertilizer production.

Background

Organic fertilizer, mainly from plants and/or animals, is applied to the soil to provide plant nutrition as a carbon-containing material with the main function. Is prepared from biological substances, animal and plant wastes and plant residues, eliminates toxic and harmful substances in the biological substances, and is rich in a large amount of beneficial substances, including: various organic acids, peptides and rich nutrient elements including nitrogen, phosphorus and potassium. The fertilizer not only can provide comprehensive nutrition for crops, but also has long fertilizer efficiency, can increase and update soil organic matters, promote microbial propagation, improve the physical and chemical properties and biological activity of soil, and is a main nutrient for green food production. The conventional organic fertilizer is usually granular, and the processes of fermentation, crushing, granulation, drying, screening and the like are required in the preparation and forming process, so that the conventional screening device is large in overall size, the organic fertilizer is easy to block screen holes of a screen mesh in the screening process of the organic fertilizer, and once the blocking screen is blocked, the blocking screen is difficult to clean in time, so that the screening efficiency is inevitably influenced; in addition, since the fertilizer particles (even after being dried) conveyed in contain certain moisture, certain adhesion force is formed among the fertilizer particles, so that the fertilizer particles cannot be rapidly dispersed during turning, and the screening efficiency is also influenced; thirdly, the screening is realized only to the screen cloth shake of current fertilizer sieving mechanism, and is lower to the degree of turning of fertilizer granule, is difficult to guarantee quick screening.

Disclosure of Invention

Therefore, in order to solve the above disadvantages, the present invention provides a device for screening the quality of fertilizer after production; the invention adopts positive and negative alternate rotation and turning screening, the efficiency is higher, and the brush hair can continuously brush the screening net cage during the operation, thereby reducing the condition that organic fertilizer blocks the sieve pores of the screen and preventing the organic fertilizer from being attached to the screening net cage; in addition, steam can be introduced through the right end of the rotating shaft and then discharged from the hot gas output hole, and organic fertilizers in the screening net cage are further dried while the rotating shaft rotates.

The invention is realized in such a way that the screening device for the advantages and disadvantages after the fertilizer production is constructed, the screening device comprises a support frame, and the support frame is made of stainless steel materials, so that the bearing effect of the whole screening device is realized;

the screening device also comprises a screening net cage and a screening stirring mechanism which can rotate; the screening net cage and the screening stirring mechanism are respectively arranged on the support frame, and the screening of fertilizer particles is realized through rotating matching;

the screening device also comprises a fertilizer particle feeding port, a screening tail discharge port and a screening lower discharge port;

a supporting bearing A and a supporting bearing B for bearing the screening and stirring mechanism are respectively and fixedly arranged at the front end and the rear end of the supporting frame, and the screening and stirring mechanism is integrally arranged on the supporting frame through the supporting bearing A and the supporting bearing B;

the both ends position of the axis of rotation that screening rabbling mechanism corresponds is provided with the support bearing C and the support bearing D that are used for bearing the weight of screening cylinder mould respectively, and the support bearing C passes through the support column and is connected with the medial surface of screening cylinder mould with the outside of support bearing D.

As an improvement of the technical scheme, the device for screening the advantages and the disadvantages after the fertilizer production is provided; the discharge hole of the screening tail part is fixed with the rear end of the support frame and corresponds to the tail part of the screening net cage; the discharge port at the lower part of the screening part is fixed with the supporting frame and corresponds to the lower part of the screening net cage.

As an improvement of the technical scheme, the device for screening the advantages and the disadvantages after the fertilizer production is provided; the screening cylinder mould and the screening stirring mechanism are transversely and obliquely arranged on the support frame, so that the fertilizer particles inside are easy to turn under the action of gravity.

As an improvement of the technical scheme, the device for screening the advantages and the disadvantages after the fertilizer production is provided; the screening net cage is driven to rotate by a rotating motor arranged on the supporting frame, and the rotating mode of the rotating motor is that the screening net cage rotates for a large half of a circle to a circle in a forward direction and then rotates for a large half of a circle to a circle in a reverse direction, and the screening net cage is operated in a forward and reverse alternate continuous mode.

As an improvement of the technical scheme, the device for screening the advantages and the disadvantages after the fertilizer production is provided; the inside hollow structure that is of axis of rotation that screening rabbling mechanism corresponds, its right-hand member are steam input interface end, and it has a plurality of inside hollow stirring vanes to distribute in the axis of rotation, and it has the steam delivery outlet to distribute on the stirring vane, and its effect is that can let in steam through the right-hand member of axis of rotation, steam is discharged from the steam delivery outlet again for realize further drying to the inside fertilizer granule of screening cylinder mould, do benefit to and turn.

As an improvement of the technical scheme, the device for screening the advantages and the disadvantages after the fertilizer production is provided; the upper ends of the supporting bearing A and the supporting bearing B are provided with a bristle holder through a fixing frame A and a fixing frame B, the lower end of the bristle holder is provided with a row of bristles, and the bristle holder is just positioned above the screening net cage so that the bristles of the bristle holder are in contact with the outer side of the screening net cage; fertile grain feed mouth passes through mount A to be fixed at the left end of screening cylinder mould to the export of machine fertile feed inlet stretches into in the screening cylinder mould along between screening cylinder mould and the axis of rotation.

As an improvement of the technical scheme, the device for screening the advantages and the disadvantages after the fertilizer production is provided; when the screening method is implemented, the organic fertilizer particles to be screened are delivered into the fertilizer feeding particle material port through the hoister, are transmitted into the screening cylinder mould through the fertilizer feeding particle material port, and simultaneously the rotating motor is started to rotate at a constant speed, wherein the rotating mode of the rotating motor during rotation is that the rotating motor rotates forwards for a large half period (circle) to a circle, then rotates reversely for a large half period (circle) to a circle, and is carried out according to a forward and reverse alternating continuous mode, so that the rotating motor drives the screening cylinder mould to rotate forwards and reversely; meanwhile, a screening and stirring mechanism is started to rotate, the stirring blades are rotated to stir the fertilizer particles in the screening and stirring mechanism, the screening and stirring mechanism is matched with a screening net cage to form good and bad screening of the fertilizer particles, the screened uniform fine particles are collected through a discharge port at the lower part of the screening, and the agglomerated coarse particles are discharged through a discharge port at the tail part of the screening; in the in-process of whole screening, the screening cylinder mould rotates along with, and the brush hair can incessantly brush the screening cylinder mould simultaneously to this condition that reduces the fertilizer and block up the screen cloth sieve mesh also can prevent the condition that the fertilizer from attaching to on the screening cylinder mould simultaneously.

The invention has the following advantages: the invention improves a screening device for the advantages and disadvantages after the fertilizer production by improving the device, and has the following improvements and advantages;

the screening device comprises a support frame, a screening net cage capable of rotating, a screening stirring mechanism, a fertilizer feeding particle material inlet, a screening tail material outlet and a screening lower material outlet; a supporting bearing A and a supporting bearing B for bearing the screening and stirring mechanism are respectively and fixedly arranged at the front end and the rear end of the supporting frame, and the screening and stirring mechanism is integrally and transversely arranged on the supporting frame through the supporting bearing A and the supporting bearing B; the both ends position of the axis of rotation that screening rabbling mechanism corresponds is provided with the support bearing C and the support bearing D that are used for bearing the weight of screening cylinder mould respectively, and the support bearing C passes through the support column and is connected with the medial surface of screening cylinder mould with the outside of support bearing D. When in implementation; the upper ends of the supporting bearing A and the supporting bearing B are provided with a bristle holder through a fixing frame A and a fixing frame B, the lower end of the bristle holder is provided with a row of bristles, and the bristle holder is just positioned above the screening net cage so that the bristles of the bristle holder are in contact with the outer side of the screening net cage; fertile grain feed mouth passes through mount A to be fixed at the left end of screening cylinder mould to the export of machine fertile feed inlet stretches into in the screening cylinder mould along between screening cylinder mould and the axis of rotation. The invention is different from the existing fertilizer particle screening machine, because the invention adopts positive and negative alternate rotation and turning screening, the efficiency is higher, and the brush hair can continuously brush the screening net cage during the operation, thereby reducing the condition that the organic fertilizer blocks the sieve pores of the screen and simultaneously preventing the organic fertilizer from being attached to the screening net cage.

2, a discharge hole at the screening tail part is fixed with the rear end of the support frame and corresponds to the tail part of the screening net cage; the discharge port at the lower part of the screening part is fixed with the supporting frame and corresponds to the lower part of the screening net cage.

3, the screening net cage and the screening stirring mechanism are integrally transversely and obliquely arranged on the support frame; and the screening net cage is driven to rotate by a rotating motor arranged on the supporting frame.

And 4, the inside of the rotating shaft corresponding to the screening and stirring mechanism is of a hollow structure, the right end of the rotating shaft is a hot gas input interface end, a plurality of stirring blades with the hollow inside are distributed on the rotating shaft, and hot gas output holes are distributed on the stirring blades. In the implementation process, the inside hollow structure that is of axis of rotation, its right-hand member can let in steam, steam is discharged from the steam delivery port again for further dry the inside fertilizer of screening cylinder mould.

5, the whole corresponding implementation process is as follows; delivering organic fertilizer particles to be screened into a fertilizer feeding particle material port through a lifter, transmitting the organic fertilizer particles into a screening cylinder mould through the fertilizer feeding particle material port, simultaneously starting a rotating motor to rotate at a constant speed, wherein the rotating mode of the rotating motor during rotation is that the rotating motor rotates forwards for a large half period (circle) to a circle, then rotates reversely for a large half period (circle) to a circle, and is carried out according to a forward and reverse alternating continuous mode, so that the rotating motor drives the screening cylinder mould to rotate forwards and reversely; meanwhile, a screening and stirring mechanism is started to rotate, the stirring blades are rotated to stir the fertilizer particles in the screening and stirring mechanism, the screening and stirring mechanism is matched with a screening net cage to form good and bad screening of the fertilizer particles, the screened uniform fine particles are collected through a discharge port at the lower part of the screening, and the agglomerated coarse particles are discharged through a discharge port at the tail part of the screening; in the in-process of whole screening, the screening cylinder mould rotates along with, and the brush hair can incessantly brush the screening cylinder mould simultaneously to this condition that reduces the fertilizer and block up the screen cloth sieve mesh also can prevent the condition that the fertilizer from attaching to on the screening cylinder mould simultaneously.

Drawings

FIG. 1 is a general schematic of the present invention;

FIG. 2 is an overall internal schematic view of the present invention;

FIG. 3 is a schematic view of the position of the fertilizer feed particle opening and the screen cylinder;

figure 4 is a schematic view of the screen agitation mechanism of the present invention.

Wherein: support frame 1, screening cylinder mould 2, screening rabbling mechanism 3, axis of rotation 3A, hot gas input interface end 3B, hollow stirring leaf 3C, hot gas delivery outlet 3D, fertile grain feed inlet 4, screening afterbody discharge gate 5, discharge gate 6, support bearing A7, support bearing B8, support bearing C9, support bearing D10, support column 11, inclined bottom plate 12, brush hair frame 13, brush hair 14, mount A15, mount B16, rotating electrical machines 17.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 4, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a screening device for the advantages and disadvantages after fertilizer production by improvement, which is shown in figures 1-4 and can be implemented as follows; the device comprises a support frame 1, a screening net cage 2 capable of rotating, a screening and stirring mechanism 3, a fertilizer feeding particle material port 4, a screening tail material port 5 and a screening lower material port 6; a supporting bearing A7 and a supporting bearing B8 for bearing the screening and stirring mechanism 3 are respectively and fixedly arranged at the front end and the rear end of the supporting frame 1, and the screening and stirring mechanism 3 is transversely arranged on the supporting frame 1 through the supporting bearing A7 and the supporting bearing B8; the two ends of the rotating shaft 3A corresponding to the screening and stirring mechanism 3 are respectively provided with a supporting bearing C9 and a supporting bearing D10 for bearing the screening net cage 2, and the outer sides of the supporting bearing C9 and the supporting bearing D10 are connected with the inner side surface of the screening net cage 2 through a supporting column 11.

When in implementation; the upper ends of the supporting bearing A7 and the supporting bearing B8 are provided with a bristle holder 13 through a fixed frame A15 and a fixed frame B16, the lower end of the bristle holder 13 is provided with a row of bristles 14, and the bristle holder 13 is just positioned above the screening net cage 2, so that the bristles 14 are in contact with the outer side of the screening net cage 2; fertile grain feed opening 4 passes through mount A15 to be fixed at the left end of screening cylinder mould 2 to the export of machine fertile feed opening 4 stretches into in the screening cylinder mould 2 along between screening cylinder mould 2 and axis of rotation 3A.

When the screening device for the quality after the fertilizer production is implemented; the screening tail discharge port 5 is fixed with the rear end of the support frame 1 and corresponds to the tail of the screening net cage 2; the screening lower discharge port 6 is fixed with the support frame 1 and corresponds to the lower part of the screening net cage 2.

When the screening device for the quality after the fertilizer production is implemented; the screening net cage 2 and the screening and stirring mechanism 3 are transversely and obliquely arranged on the support frame 1.

When the screening device for the quality after the fertilizer production is implemented; the screening net cage 2 is driven to rotate by a rotating motor 17 arranged on the support frame 1.

When the screening device for the quality after the fertilizer production is implemented; the inside hollow structure that is of axis of rotation 3 that screening rabbling mechanism 3 corresponds, its right-hand member is steam input interface end 3B, and it has a plurality of inside for hollow stirring leaf 3C to distribute on the axis of rotation 3A, and it has steam output hole 3D to distribute on the stirring leaf 3C. In the implementation, axis of rotation 3 is inside to be hollow structure, and its right-hand member can let in steam, steam is discharged from steam delivery outlet 3D again for further dry the inside fertilizer of screening cylinder mould 2.

The corresponding implementation process of the whole is as follows; when the screening method is implemented, organic fertilizer particles to be screened are delivered into the fertilizer particle feeding port 4 through the elevator, are transmitted into the screening cylinder mould 2 through the fertilizer particle feeding port 4, the rotating motor 17 is started to rotate at a constant speed, the rotating motor 17 rotates in a mode that the rotating motor 17 rotates forwards for a half cycle (circle) and then rotates reversely for a half cycle (circle), and the rotating motor 17 drives the screening cylinder mould 2 to rotate forwards and backwards continuously according to a forward and reverse alternate continuous mode; meanwhile, the screening and stirring mechanism 3 is started to rotate, the stirring blades 3C are used for stirring the fertilizer particles inside through rotation, the screening and stirring mechanism 3 is matched with the screening net cage 2 to form good and bad screening of the fertilizer particles, the screened uniform fine particles are collected through a screening lower discharge port 6, and the agglomerated coarse particles are discharged through a screening tail discharge port 5; in-process at whole screening, screening cylinder mould 2 is along with rotating together, and brush hair 14 can incessantly brush screening cylinder mould 2 simultaneously to this reduces the condition that fertilizer blockked up the screen cloth sieve mesh, also can prevent the condition that fertilizer adheres to on screening cylinder mould 2 simultaneously.

The invention has the following improvements and advantages;

the fertilizer screening device comprises a support frame 1, a screening net cage 2 capable of rotating, a screening and stirring mechanism 3, a fertilizer feeding particle material port 4, a screening tail material port 5 and a screening lower material port 6; a supporting bearing A7 and a supporting bearing B8 for bearing the screening and stirring mechanism 3 are respectively and fixedly arranged at the front end and the rear end of the supporting frame 1, and the screening and stirring mechanism 3 is transversely arranged on the supporting frame 1 through the supporting bearing A7 and the supporting bearing B8; the two ends of the rotating shaft 3A corresponding to the screening and stirring mechanism 3 are respectively provided with a supporting bearing C9 and a supporting bearing D10 for bearing the screening net cage 2, and the outer sides of the supporting bearing C9 and the supporting bearing D10 are connected with the inner side surface of the screening net cage 2 through a supporting column 11. When in implementation; the upper ends of the supporting bearing A7 and the supporting bearing B8 are provided with a bristle holder 13 through a fixed frame A15 and a fixed frame B16, the lower end of the bristle holder 13 is provided with a row of bristles 14, and the bristle holder 13 is just positioned above the screening net cage 2, so that the bristles 14 are in contact with the outer side of the screening net cage 2; fertile grain feed opening 4 passes through mount A15 to be fixed at the left end of screening cylinder mould 2 to the export of machine fertile feed opening 4 stretches into in the screening cylinder mould 2 along between screening cylinder mould 2 and axis of rotation 3A. The invention is different from the prior fertilizer particle screening machine, because the invention adopts positive and negative alternate rotation and turning screening, the efficiency is higher, and the brush hair 14 can continuously brush the screening net cage 2 during the operation, thereby reducing the condition that the organic fertilizer blocks the sieve pores of the screen and simultaneously preventing the organic fertilizer from being attached to the screening net cage 2.

2, the discharge port 5 of the screening tail part is fixed with the rear end of the support frame 1 and corresponds to the tail part of the screening net cage 2; the screening lower discharge port 6 is fixed with the support frame 1 and corresponds to the lower part of the screening net cage 2.

The screening net cage 2 and the screening stirring mechanism 3 are integrally and transversely obliquely arranged on the support frame 1; and the screening net cage 2 is driven to rotate by a rotating motor 17 arranged on the support frame 1.

And 4, the inside of the rotating shaft 3 corresponding to the screening and stirring mechanism 3 is of a hollow structure, the right end of the rotating shaft is a hot gas input interface end 3B, a plurality of stirring blades 3C with the hollow inside are distributed on the rotating shaft 3A, and hot gas output holes 3D are distributed on the stirring blades 3C. In the implementation, axis of rotation 3 is inside to be hollow structure, and its right-hand member can let in steam, steam is discharged from steam delivery outlet 3D again for further dry the inside fertilizer of screening cylinder mould 2.

5, the whole corresponding implementation process is as follows; when the screening method is implemented, organic fertilizer particles to be screened are delivered into the fertilizer particle feeding port 4 through the elevator, are transmitted into the screening cylinder mould 2 through the fertilizer particle feeding port 4, the rotating motor 17 is started to rotate at a constant speed, the rotating motor 17 rotates in a mode that the rotating motor 17 rotates forwards for a half cycle (circle) and then rotates reversely for a half cycle (circle), and the rotating motor 17 drives the screening cylinder mould 2 to rotate forwards and backwards continuously according to a forward and reverse alternate continuous mode; meanwhile, the screening and stirring mechanism 3 is started to rotate, the stirring blades 3C are used for stirring the fertilizer particles inside through rotation, the screening and stirring mechanism 3 is matched with the screening net cage 2 to form good and bad screening of the fertilizer particles, the screened uniform fine particles are collected through a screening lower discharge port 6, and the agglomerated coarse particles are discharged through a screening tail discharge port 5; in-process at whole screening, screening cylinder mould 2 is along with rotating together, and brush hair 14 can incessantly brush screening cylinder mould 2 simultaneously to this reduces the condition that fertilizer blockked up the screen cloth sieve mesh, also can prevent the condition that fertilizer adheres to on screening cylinder mould 2 simultaneously.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.