CN114308643A

CN114308643A - A screening equipment for fertilizer processing

Info

Publication number: CN114308643A
Application number: CN202210019760.1A
Authority: CN
Inventors: 荣道靖
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-04-12

Abstract

The invention provides screening equipment for fertilizer processing, and relates to the technical field of fertilizer processing, which comprises a box body, a feeding pipe, a screening box, a crushing assembly and a stirring assembly arranged at the top of the screening box and used for preventing the feeding pipe from being blocked, wherein a control panel is fixedly arranged on the front surface of the box body, an equipment box is fixedly arranged on one side close to the top inside the box body, a partition plate is fixedly arranged inside the box body, the top of the box body is fixedly connected with the feeding pipe, the crushing assembly is arranged at the top of the partition plate, the stirring assembly comprises a rotating plate, a connecting pipe and a push plate, the bottom of the feeding pipe is of a cylindrical structure, a rotating shaft is arranged inside the feeding pipe, a plurality of rotating plates are fixedly connected to the outer side of the rotating shaft, and the top of the screening box is fixedly connected with the connecting pipe. This kind of equipment uses through the cooperation of rotor plate, push pedal and connecting pipe, can prevent that the inlet pipe from blockking up, uses through the actuating lever, according to the depression bar, according to the briquetting and according to the cooperation of pressing the platen, can carry out shredding to unqualified fertilizer, improves work efficiency.

Description

A screening equipment for fertilizer processing

Technical Field

The invention relates to the technical field of fertilizer processing, in particular to screening equipment for fertilizer processing.

Background

The fertilizer is a substance which provides one or more nutrient elements necessary for plants, improves the soil property and improves the soil fertility level, is one of the material bases of agricultural production, and mainly comprises ammonium phosphate fertilizers, macroelement water-soluble fertilizers, neutral fertilizers, compound fertilizers, biological fertilizers, organic fertilizers, multi-dimensional field energy concentrated organic fertilizers and the like.

The urea particle is used as a neutral fertilizer, the urea is suitable for various soils and plants, the urea is easy to store, convenient to use, small in damage effect on the soils and wide in application range, the urea particle has the size, the large particle urea has a slow dissolving speed, is suitable for being used as a base fertilizer and is not suitable for top dressing and irrigation application, the small particle urea is suitable for various soils and various crops, is a nitrogen fertilizer with high nitrogen content and can be used as a base fertilizer and a top dressing, and therefore, the small particle urea is mostly used as the fertilizer in the market at present.

In the production and processing process of the small granular urea, screening equipment is needed to screen the produced urea fertilizer, screening out the large and unqualified granular urea in the fertilizer, and processing and producing the unqualified fertilizer again.

However, when the existing screening equipment is used for screening fertilizers, a large amount of fertilizers are generally poured into the equipment at one time, so that pipelines inside the equipment are easily blocked, the screening efficiency is affected, and meanwhile, unqualified urea fertilizers after screening need to be taken out of the equipment again and transported to other equipment for reprocessing and manufacturing, so that the equipment is very inconvenient.

Disclosure of Invention

The invention aims to solve the defects in the background art, and provides the screening equipment for processing the fertilizer, the rotating plate, the push plate and the connecting pipe are matched for use, so that the blocking of the feeding pipe can be prevented, and the driving rod, the pressing block and the pressing plate are matched for use, so that the unqualified fertilizer can be crushed, and the working efficiency is improved.

In order to achieve the purpose, the invention provides the following technical scheme that the screening equipment for fertilizer processing comprises a box body, a feeding pipe, a screening box, a crushing assembly and a stirring assembly, wherein the stirring assembly is arranged at the top of the screening box and used for preventing the feeding pipe from being blocked;

the front side of the box body is fixedly provided with a control panel, one side of the interior of the box body, which is close to the top, is fixedly provided with an equipment box, a partition plate is fixedly arranged in the box body, the top of the box body is fixedly connected with a feeding pipe, and the top of the partition plate is provided with a crushing assembly;

the stirring subassembly includes rotor plate, connecting pipe and push pedal, the inlet pipe bottom is the cylinder structure, the inside axis of rotation that is provided with of inlet pipe, just axis of rotation outside fixedly connected with polylith rotor plate, screening roof portion fixedly connected with connecting pipe, the inside fixed mounting of connecting pipe has the push pedal.

Furthermore, the top of the push plate protrudes out of the upper surface of the connecting pipe, the rotating plate protrudes out of the lower surface of the feeding pipe, and the bottom of the box body is fixedly connected with two discharging pipes.

Further, the inside fixed mounting of equipment box has servo motor, servo motor one side is connected with the cylinder through the drive of drive shaft, the cylinder surface begins to have the spout of arc structure, the shifting chute has been seted up to equipment box bottom, the inside sliding connection of spout has the connecting rod, just the connecting rod bottom is protruding out the equipment box lower surface through the shifting chute.

Further, screening bottom of the case portion is provided with a plurality of gyro wheels, the spacing groove has been seted up at the baffle top, just gyro wheel and spacing groove sliding connection, screening case one side fixedly connected with actuating lever, just the one end top that the screening case was kept away from to the actuating lever is connected with the connecting rod, the one end that the screening case was kept away from to the actuating lever sets up the inclined plane.

Further, crushing unit includes the mounting panel, presses the depression bar, presses the briquetting and presses the clamp plate, fixed mounting has the mounting panel on the inner wall of box one side, the through-hole has been seted up on the mounting panel surface, the inside pressure depression bar that is provided with of through-hole, press the depression bar top fixedly connected with press the briquetting, just press the briquetting top and be provided with the inclined plane, press the depression bar bottom fixedly connected with press the clamp plate, be provided with a plurality of extension spring between clamp plate and the mounting panel, the baffle surface is provided with a plurality of crushing holes, just crushing hole site is in pressing the clamp plate below.

Further, the inside fixed mounting of screening case has the screening net, just the screening net sets up for the slope, the discharge opening has been seted up to one side that the screening case is close to the actuating lever, the discharge opening is inside to rotate through the axis of rotation and to be connected with the baffle, just the inside fixed mounting of discharge opening has the stopper, the stopper is located baffle one side.

Further, the inside fixedly connected with dead lever of box, just dead lever actuating lever below, the dead lever is close to discharge opening one side fixedly connected with catch bar, just catch bar and discharge opening are located same water flat line.

Further, the inside unloading pipe that is provided with of baffle, the unloading hole has been seted up to screening bottom of the case portion, closed slot and block groove have been seted up respectively to the unloading hole both sides, just the unloading hole all switches on with closed slot and block groove mutually, the inside fixedly connected with reset spring of closed slot, just reset spring's one end fixedly connected with is with the supporting closed plate that uses of block groove.

Furthermore, the fluting has been seted up to the closed slot bottom, just the closed slot switches on with spacing groove mutually through the fluting, closed plate bottom fixedly connected with kicking block, just the kicking block bottom inserts the spacing inslot portion through the fluting.

The invention provides a screening device for fertilizer processing, which has the following beneficial effects:

1. the fertilizer feeding device has the advantages that the rotating plate, the push plate and the connecting pipe are matched for use, so that the screening box drives the rotating plate to rotate back and forth while moving back and forth, fertilizers in the feeding pipe are stirred and smashed, and the feeding pipe is prevented from being blocked.

2. Secondly, through the actuating lever, press the depression bar, press the briquetting and use with the cooperation of pressing the pressure board, can carry out shredding to unqualified fertilizer when screening fertilizer, reduce the time of production and processing, improve work efficiency.

3. Then, through the cooperation use of cylinder, spout, connecting rod and actuating lever, can drive the screening case and carry out quick lateral shifting that relapses for the screening case can be in and shake under the higher frequency, improves screening efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a sectional view of the overall structure of the present invention.

Fig. 3 is a cross-sectional view of the overall structure of the present invention in use.

Fig. 4 is a schematic view of the structure of the discharge hole of the present invention.

Fig. 5 is a schematic view of the structure of the drum of the present invention.

Fig. 6 is a schematic view of the feed tube configuration of the present invention.

FIG. 7 is a schematic diagram of the structure of the push plate of the present invention.

Fig. 8 is an enlarged view of the invention at a in fig. 2.

Fig. 9 is an enlarged view of the invention at B in fig. 2.

Fig. 10 is an enlarged view of the invention at C in fig. 3.

Fig. 11 is an enlarged view of the invention at D in fig. 3.

In FIGS. 1-11: 1. a box body; 101. a feed pipe; 102. a rotating plate; 103. a partition plate; 104. a limiting groove; 105. crushing holes; 106. a discharging pipe; 107. a discharge pipe; 2. an equipment box; 201. a servo motor; 202. a drum; 2021. a chute; 203. a moving groove; 204. a connecting rod; 3. a screening box; 301. a connecting pipe; 302. pushing the plate; 303. screening a net; 304. a discharge hole; 305. a baffle plate; 306. a limiting block; 307. a drive rod; 308. a roller; 309. a blanking hole; 4. fixing the rod; 401. a push rod; 5. closing the groove; 501. a clamping groove; 502. a return spring; 503. a closing plate; 504. a top block; 505. grooving; 6. mounting a plate; 601. a pressing lever; 602. a pressing block; 603. a pressing plate; 604. a tension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Example (b):

referring to FIGS. 1-11 of the drawings,

the screening device for fertilizer processing provided by the embodiment comprises a box body 1, a feeding pipe 101, a screening box 3, a crushing assembly and a stirring assembly, wherein the stirring assembly is arranged at the top of the screening box 3 and is used for preventing the feeding pipe 101 from being blocked;

the front side of the box body 1 is fixedly provided with a control panel, one side of the interior of the box body 1 close to the top is fixedly provided with an equipment box 2, the interior of the box body 1 is fixedly provided with a partition plate 103, the top of the box body 1 is fixedly connected with a feeding pipe 101, and the top of the partition plate 103 is provided with a crushing assembly;

stirring subassembly includes rotor plate 102, connecting pipe 301 and push pedal 302, and inlet pipe 101 bottom is the cylinder structure, and the inside axis of rotation that is provided with of inlet pipe 101, and axis of rotation outside fixedly connected with

polylith rotor plate

102, 3 top fixedly connected with connecting pipes 301 of screening case, the inside fixed mounting of connecting pipe 301 has push pedal 302.

The screening box 3 is made of aluminum alloy material, the aluminum alloy material has the characteristics of good corrosion resistance and light weight, so that the screening box 3 can resist the corrosion of various substances in the fertilizer under the long-time use, the service life of the screening box 3 is prolonged, and meanwhile, the screening box 3 can be driven to shake and screen by using less power due to the characteristic of light weight;

meanwhile, the screening box 3 can be made of stainless steel materials which also have good corrosion resistance and can meet the use requirement of the screening box 3, although the corrosion resistance of the stainless steel materials is better than that of the aluminum alloy materials, the quality of the stainless steel materials is much higher than that of the aluminum alloy materials, so that a larger power source is needed when the screening box 3 is driven to shake, and therefore the aluminum alloy materials with light weight are selected for making.

Furthermore, the top of the push plate 302 protrudes out of the upper surface of the connecting pipe 301, the rotating plate 102 protrudes out of the lower surface of the feeding pipe 101, two discharging pipes 107 are fixedly connected to the bottom of the box body 1, fertilizer to be screened is poured into the box body 1 through the feeding pipe 101 and enters the screening box 3 through the connecting pipe 301 for screening operation, when the screening box 3 screens the fertilizer, the screening box 3 drives the push plate 302 to move back and forth, so that the push plate 302 contacts the rotating plate 102 and pushes the rotating plate 102, causing the rotating plate 102 to rotate back and forth within the feed tube 101, the fertilizer in the feeding pipe 101 is stirred, so that the situation that the feeding pipe 101 is blocked by the fertilizer after a large amount of fertilizer is poured into the feeding pipe, the screening efficiency is influenced is avoided, meanwhile, as the fertilizer is easy to adhere and agglomerate after being processed, the agglomerated fertilizer is smashed through the rotating plate 102, so that the fertilizer can be screened subsequently.

Further, the inside fixed mounting of equipment box 2 has servo motor 201, servo motor 201 one side is connected with cylinder 202 through the drive of drive shaft, cylinder 202 surface begins to have arc structure's spout 2021, shifting chute 203 has been seted up to equipment box 2 bottom, the inside sliding connection of spout 2021 has connecting rod 204, and the connecting rod 204 bottom is through shifting chute 203 protrusion in equipment box 2 lower surface, start servo motor 201 through control panel, make servo motor 201 rotate through drive shaft drive cylinder 202, and connecting rod 204 and spout 2021 sliding connection, make cylinder 202 drive connecting rod 204 through spout 2021 and carry out transverse motion repeatedly, the moving direction and the distance footpath of this moment to connecting rod 204 are injectd through shifting chute 203.

Further, screening case 3 bottom is provided with a plurality of gyro wheels 308, spacing groove 104 has been seted up at the baffle 103 top, and gyro wheel 308 and spacing groove 104 sliding connection, screening case 3 one side fixedly connected with actuating lever 307, and the one end top that screening case 3 was kept away from to actuating lever 307 is connected with connecting rod 204, the one end that screening case 3 was kept away from to actuating lever 307 sets up the inclined plane, then connecting rod 204 is connected with actuating lever 307 again, make connecting rod 204 drive screening case 3 through actuating lever 307 and carry out lateral shifting repeatedly, then be convenient for screening case 3 through a plurality of gyro wheels 308 and remove, reduce the frictional force between screening case 3 and the baffle 103, the moving direction and the distance through spacing groove 104 and screening case 3 are injectd simultaneously.

Further, the crushing assembly comprises a mounting plate 6, a pressing rod 601, a pressing block 602 and a pressing plate 603, the mounting plate 6 is fixedly mounted on the inner wall of one side of the box body 1, a through hole is formed on the surface of the mounting plate 6, the pressing rod 601 is arranged in the through hole, the pressing block 602 is fixedly connected to the top of the pressing rod 601, an inclined surface is arranged at the top end of the pressing block 602, the pressing plate 603 is fixedly connected to the bottom end of the pressing rod 601, a plurality of extension springs 604 are arranged between the pressing plate 603 and the mounting plate 6, a plurality of crushing holes 105 are formed in the surface of the partition plate 103, the crushing holes 105 are located below the pressing plate 603, then in the moving process of the driving rod 307, the inclined surface of the driving rod 307 is in inclined contact with and is pressed by the inclination of the pressing block 602, so that the pressing block 602 drives the pressing plate 603 to move downwards through the pressing rod 601, and the extension springs 604 are elastically deformed by the pressing plate 603 to generate elastic force, and the elasticity that will produce acts on according to pressing board 603, then press board 603 to push down and press down the great fertilizer of size above crushing hole 105 and smash, make after the great fertilizer of size smashes can drop in crushing hole 105, then actuating lever 307 separates the back with pressing block 602, press board 603 to kick-back under the effect of extension spring 604 elasticity, make according to pressing board 603, press block 602 and press bar 601 rebound normal position, make screening case 3 can smash the great fertilizer of screening ejection of compact size when screening fertilizer, reduce subsequent processing technology flow, improve production machining efficiency.

Furthermore, a screening net 303 is fixedly installed inside the screening box 3, the screening net 303 is obliquely arranged, a discharge hole 304 is formed in one side, close to a driving rod 307, of the screening box 3, a baffle 305 is rotatably connected inside the discharge hole 304 through a rotating shaft, a limiting block 306 is fixedly installed inside the discharge hole 304, the limiting block 306 is located on one side of the baffle 305, after the fertilizer falls into the screening box 3, the fertilizer is screened through the screening net 303, so that the fertilizer with a larger size stays on the surface of the screening net 303, the fertilizer with a smaller size falls to the bottom of the screening box 3 through the screening net 303, meanwhile, the screening box 3 repeatedly moves transversely, the screening efficiency of the screening net 303 on the fertilizer can be accelerated, meanwhile, the fertilizer with a larger size can move towards the discharge hole 304 through the obliquely arranged screening net 303, the fertilizer is prevented from being accumulated on the screening net 303, and the blocking of the screening net 303 is caused, affecting the screening efficiency.

Furthermore, a fixing rod 4 is fixedly connected inside the box body 1, the fixing rod 4 is arranged below a driving rod 307, a pushing rod 401 is fixedly connected to one side of the fixing rod 4 close to the discharge hole 304, the pushing rod 401 and the discharge hole 304 are positioned on the same horizontal line, then when the screening box 3 moves towards the direction of the fixing rod 4, the pushing rod 401 is just inserted into the discharge hole 304, so that the baffle 305 is pushed open by the pushing rod 401, at the moment, the fertilizer in the screening box 3 is discharged out of the screening box 3 under the action of inertia and rolls to the crushing hole 105, then when the screening box 3 moves towards the direction far away from the fixing rod 4, the pushing rod 401 is far away from the discharge hole 304, so that the baffle 305 rotates downwards under the action of self gravity, the discharge hole 304 is completely sealed, the fertilizer with a larger size is prevented from falling onto the partition plate 103, the movement of the screening box 3 is influenced, and the baffle 305 can only rotate towards the direction inside the screening box 3 through a limiting block 306, prevent baffle 305 from being rotated outwards after being struck by the fertilizer in screening box 3, resulting in the fertilizer to drop.

Further, a blanking pipe 106 is arranged in the partition plate 103, a blanking hole 309 is arranged at the bottom of the screening box 3, a closed groove 5 and a clamping groove 501 are respectively arranged at two sides of the blanking hole 309, the blanking hole 309 is communicated with the closed groove 5 and the clamping groove 501, a return spring 502 is fixedly connected in the closed groove 5, one end of the return spring 502 is fixedly connected with a closing plate 503 matched with the clamping groove 501 for use, then in the process that the screening box 3 moves away from the fixing rod 4, the top block 504 is in contact with the inner wall of the limiting groove 104, so that the closing plate 503 cannot move continuously, at the moment, the screening box 3 moves continuously, one end of the closing plate 503 is separated from the clamping groove 501, the blanking hole 309 is opened, at the moment, the return spring 502 is extruded by the closing plate 503 to generate elastic deformation, the generated elastic force acts on the closing plate 503, and then the blanking hole 309 corresponds to the blanking pipe 106, so that the screened fertilizer in the screening box 3 falls to the bottom of the box body 1 through the discharging hole 309 and the discharging pipe 106 and is discharged through the discharging pipe 107.

Further, fluting 505 has been seted up to 5 bottoms in closed slot, and closed slot 5 switches on mutually with spacing groove 104 through fluting 505, closing plate 503 bottom fixedly connected with kicking block 504, and the kicking block 504 bottom inserts limiting groove 104 through fluting 505 inside, then screening box 3 is when removing to dead lever 4 direction, closing plate 503 kick-backs under the effect of reset spring 502 elasticity, make closing plate 503 insert in the block groove 501, totally enclosed unloading hole 309, avoid fertilizer to pass through in the spacing groove 104 that unloading hole 309 dropped, influence the removal of gyro wheel 308.

When the invention is used, fertilizer to be screened is poured into the screening box 3 through the feeding pipe 101 and the connecting pipe 301, then the servo motor 201 is started through the control panel, the servo motor 201 drives the roller 202 to rotate through the driving shaft, the connecting rod 204 is in sliding connection with the sliding groove 2021, the roller 202 drives the connecting rod 204 to repeatedly and transversely move through the sliding groove 2021, at the moment, the moving direction and the distance diameter of the connecting rod 204 are limited through the moving groove 203, then the connecting rod 204 is connected with the driving rod 307, the connecting rod 204 drives the screening box 3 to repeatedly and transversely move through the driving rod 307, then the screening box 3 is convenient to move through the plurality of rollers 308, the friction force between the screening box 3 and the partition plate 103 is reduced, meanwhile, the moving direction and the distance between the limiting groove 104 and the screening box 3 are limited, and then the screening box 3 drives the push plate 302 to move in the process of repeatedly and transversely moving, the push plate 302 is in contact with the rotary plate 102 and pushes the rotary plate 102, the rotary plate 102 rotates back and forth in the feed pipe 101 to stir the fertilizer in the feed pipe 101, the situation that the feed pipe 101 is blocked by the fertilizer after a large amount of fertilizer is poured into the feed pipe is avoided, the screening efficiency is influenced, meanwhile, the fertilizer which is adhered into a group is easily adhered into a group after being processed, the fertilizer which is adhered into the group is smashed by the rotary plate 102 so as to be screened subsequently, then when the rotary plate 102 rotates back and forth, the fertilizer can drop into the screening box 3 in batches, the situation that the screening efficiency is influenced by too much fertilizer which enters the screening box 3 at one time is avoided, after the fertilizer drops into the screening box 3, the fertilizer is screened by the screening net 303, the fertilizer with a larger size stays on the surface of the screening net 303, and the fertilizer with a smaller size drops to the bottom of the screening box 3 through the screening net 303, meanwhile, the screening box 3 can move transversely repeatedly to accelerate the screening efficiency of the screening net 303 to the fertilizer, meanwhile, the screening net 303 arranged obliquely can enable the fertilizer with a large size to move towards the direction of the discharge hole 304 to prevent the fertilizer from being accumulated on the screening net 303 to cause the blocking of the screening net 303 and influence the screening efficiency, then when the screening box 3 moves towards the fixed rod 4, the push rod 401 is just inserted into the discharge hole 304 to enable the push rod 401 to push the baffle 305 open, the fertilizer in the screening box 3 is discharged out of the screening box 3 under the action of inertia and rolls to the crushing hole 105, meanwhile, the inclined surface of the driving rod 307 is in inclined contact with and extrudes the pressing block 602, so that the pressing block 602 drives the pressing plate 603 to move downwards through the pressing rod 601, at the moment, the stretching spring 604 is elastically deformed by the stretching of the pressing plate 603 to generate elastic force, and the generated elastic force acts on the pressing plate 603, then the pressing plate 603 is pressed downwards to press and crush the fertilizer with a larger size above the crushing hole 105, so that the fertilizer with a larger size can fall into the crushing hole 105 after being crushed, then when the screening box 3 moves towards a direction far away from the fixing rod 4, the pushing rod 401 is far away from the discharging hole 304, so that the baffle 305 rotates downwards under the action of self gravity to completely seal the discharging hole 304, the fertilizer with a larger size is prevented from falling onto the partition plate 103 to influence the movement of the screening box 3, the baffle 305 can only rotate towards the inner direction of the screening box 3 through the limiting block 306, the baffle 305 is prevented from rotating outwards after being impacted by the fertilizer in the screening box 3 to cause the fertilizer to fall, meanwhile, the driving rod 307 is separated from the pressing block 602, so that the pressing plate 603 rebounds under the action of the elastic force of the stretching spring 604, the pressing plate 603, the pressing block 602 and the pressing rod 601 rebound to the original position, so that the screening box 3 can crush the fertilizer with a larger size when screening discharge material, the subsequent processing process flow is reduced, the production and processing efficiency is improved, then in the process that the screening box 3 moves away from the fixed rod 4, the top block 504 is in contact with the inner wall of the limiting groove 104, the sealing plate 503 cannot move continuously, at the moment, the screening box 3 moves continuously, one end of the sealing plate 503 is separated from the clamping groove 501, the blanking hole 309 is opened, at the moment, the return spring 502 is extruded by the sealing plate 503 to generate elastic deformation to generate elastic force, the generated elastic force acts on the sealing plate 503, then the blanking hole 309 corresponds to the blanking pipe 106, screened fertilizer in the screening box 3 falls to the bottom of the box body 1 through the blanking hole 309 and the blanking pipe 106 and is discharged through the discharge pipe 107, then the screening box 3 moves towards the fixed rod 4, the sealing plate 503 rebounds under the action of the elastic force of the return spring 502, and the sealing plate 503 is inserted into the clamping groove 501, with unloading hole 309 totally enclosed, avoid fertilizer to influence the removal of gyro wheel 308 through the spacing groove 104 that unloading hole 309 dropped, can prevent through above structure that the jam from appearing in inlet pipe 101 to and carry out shredding to the great fertilizer of size when the screening.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.

Claims

1. A screening device for fertilizer processing is characterized by comprising a box body, a feeding pipe, a screening box, a crushing assembly and a stirring assembly, wherein the stirring assembly is arranged at the top of the screening box and used for preventing the feeding pipe from being blocked;

2. The screening device for fertilizer processing as recited in claim 1, wherein the top of the push plate protrudes above the upper surface of the connecting pipe, the rotating plate protrudes below the lower surface of the feeding pipe, and two discharging pipes are fixedly connected to the bottom of the box body.

3. The screening device for fertilizer processing according to claim 1, wherein a servo motor is fixedly installed inside the device box, one side of the servo motor is connected with a roller through a driving shaft in a driving mode, the surface of the roller begins to be provided with a sliding groove with an arc structure, the bottom of the device box is provided with a moving groove, a connecting rod is connected inside the sliding groove in a sliding mode, and the bottom end of the connecting rod protrudes out of the lower surface of the device box through the moving groove.

4. The screening equipment for fertilizer processing according to claim 1, wherein a plurality of rollers are arranged at the bottom of the screening box, a limiting groove is formed in the top of the partition plate, the rollers are slidably connected with the limiting groove, a driving rod is fixedly connected to one side of the screening box, the top of one end, away from the screening box, of the driving rod is connected with a connecting rod, and an inclined surface is arranged at one end, away from the screening box, of the driving rod.

5. The screening device for fertilizer processing as claimed in claim 1, wherein the crushing assembly comprises a mounting plate, a pressing rod, a pressing block and a pressing plate, the mounting plate is fixedly mounted on the inner wall of one side of the box body, a through hole is formed in the surface of the mounting plate, the pressing rod is arranged inside the through hole, the pressing block is fixedly connected to the top of the pressing rod, an inclined surface is arranged at the top end of the pressing block, the pressing plate is fixedly connected to the bottom end of the pressing rod, a plurality of extension springs are arranged between the pressing plate and the mounting plate, a plurality of crushing holes are formed in the surface of the partition plate, and the crushing holes are located below the pressing plate.

6. The screening equipment for fertilizer processing of claim 1, wherein the screening box is fixedly provided with a screening net inside, the screening net is arranged in an inclined manner, one side of the screening box close to the driving rod is provided with a discharge hole, a baffle is rotatably connected inside the discharge hole through a rotating shaft, a limiting block is fixedly arranged inside the discharge hole, and the limiting block is positioned on one side of the baffle.

7. The screening device for fertilizer processing as claimed in claim 1, wherein a fixing rod is fixedly connected inside the box body, and below the fixing rod driving rod, a push rod is fixedly connected to one side of the fixing rod close to the discharge hole, and the push rod and the discharge hole are located on the same horizontal line.

8. The screening device for fertilizer processing according to claim 1, wherein a blanking pipe is arranged inside the partition plate, a blanking hole is formed in the bottom of the screening box, a closed groove and a clamping groove are formed in two sides of the blanking hole respectively, the blanking hole is communicated with the closed groove and the clamping groove, a return spring is fixedly connected inside the closed groove, and one end of the return spring is fixedly connected with a closed plate used with the clamping groove.

9. The screening equipment for fertilizer processing of claim 8, wherein the bottom of the closed slot is provided with a slot, the closed slot is communicated with the limit slot through the slot, the bottom of the closed plate is fixedly connected with a top block, and the bottom end of the top block is inserted into the limit slot through the slot.