CN114247634B

CN114247634B - Be used for pig feed processing to use raw materials multi-stage screening device

Info

Publication number: CN114247634B
Application number: CN202111617493.XA
Authority: CN
Inventors: 孙树霖
Original assignee: Guangdong Co Power Feed Scientific Co ltd
Current assignee: Guangdong Co Power Feed Scientific Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-11-15
Anticipated expiration: 2041-12-27
Also published as: CN115999891A; CN115338100A; CN114247634A

Abstract

The invention discloses a raw material multi-stage screening device for pig feed processing, and particularly relates to the technical field related to pig feed processing. The rotating ring drives the hook plate to rotate, so that the filter box and the screening box are circularly shaken through the spring at the bottom, the feed in the screening device is repeatedly shaken, the screening speed of the feed is increased, the screening efficiency of the feed is improved, meanwhile, the continuously-shaken screen plate prevents the feed from being blocked in the screening device, and prevents a large amount of feed from entering the screening device to be accumulated, so that the screening precision of the feed is ensured.

Description

Be used for pig feed processing to use raw materials multi-stage screening device

Technical Field

The invention relates to the technical field related to pig feed processing, in particular to a raw material multi-stage screening device for pig feed processing.

Background

Pig feed usually is by protein feed, energy fodder, the coarse fodder, green fodder, silage, the fodder of raising the domestic pig that mineral matter fodder and feed additive constitute, the complete feed of selling on the market is mainly through the granulated fodder of machine tooling pelletization, the part is popped pellet material, can directly be used for feeding the object of raising, can satisfy the nutrition needs of object of feeding comprehensively, and in carrying out the processing of pig fodder, need mix the raw materials or pelletize after smashing multiple raw materials, and because there is the thickness difference in the raw materials after smashing, and then need use screening plant to carry out the screening of raw materials, and then guarantee the quality of later stage processing.

Chinese patent grant publication No. CN111889345A, announcement date 2020, 11 months and 06 days, discloses a screening device for pig feed processing, which comprises a screening box, wherein supporting legs are fixedly connected to positions on the left and right sides of the screening box near the bottom, and a protecting cover is arranged on the top of the screening box.

Above-mentioned prior art scheme sieves out kibbling fodder after will granulating, and then guarantees the quality of fodder, nevertheless forms continuous screening through screening from top to bottom at the in-process that sieves, nevertheless can not sieve into multiple specification simultaneously with the fodder, inconvenient sieve out inside dust when sieving the specification.

The efficiency that simultaneously makes the fodder carry out self-sliding screening through the screening of slope is low excessively, produces the piling up of fodder easily when more fodder drops into simultaneously, can not carry out the meticulous screening with fodder inside simultaneously, and then has reduced the screening quality and the efficiency of fodder, and then need provide a section and can carry out multistage screening, and efficient screening plant with the fodder.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a raw material multi-stage screening device for pig feed processing, in which a filtering box and a screening box are shaken simultaneously by a rotating ring and a hook plate, so as to facilitate rapid screening of internal feed, and the filtering and screening of the feed are performed simultaneously, thereby solving the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a multi-stage screening device for raw materials for pig feed processing comprises a fixing frame, wherein a supporting column is fixedly mounted at the top of the bottom side of the fixing frame, a spring for shaking the screening device is fixedly mounted at the top end of the supporting column, a supporting plate is fixedly connected to the top end of the spring, a discharging hopper is fixedly connected to one side of the supporting plate, a screening box is mounted at the top of the discharging hopper, a raw material screening plate for screening raw materials is arranged on the inner wall of the screening box, an installation block for disassembling the screening plate is mounted on an edge bolt at the top of the raw material screening plate, a discharging pipe is fixedly mounted on the inner wall of one side of the screening box, an anti-skidding ring is sleeved on the outer wall of the discharging pipe, a conveying pipe is fixedly connected to the inner wall of the other side of the screening box, and a fixing structure is fixedly mounted on the outer wall of the screening box;

a disassembly structure is arranged outside the fixed structure, a filter box is fixedly connected to one side of the disassembly structure, an ash discharge pipe is fixedly connected to the inner wall of one side of the filter box, a guide plate is fixedly connected to the inner wall of the filter box, and a filter plate for filtering raw material dust is arranged at the top of the guide plate;

the utility model discloses a spacing device of filter tank, including rose box, solid fixed ring, the outer wall of solid fixed ring has seted up the spout, the inner wall sliding connection of spout has the hook plate, and one side fixed mounting of hook plate has the change, the outer wall fixedly connected with spacing ring of change, and the top of change is provided with the tooth piece, the outer wall of spacing ring is removed and is connected with and be used for spacing lagging, and the inner wall of lagging has seted up the spacing groove, the top fixed mounting of lagging has the motor, and one side fixedly connected with gear of motor.

In a preferred embodiment, the supporting column is elastically connected with the supporting plate through a spring, and the spring and the supporting plate are symmetrically arranged on the outer wall of the discharging hopper.

In a preferred embodiment, the raw material sieve plate is fixedly installed with the sieve box through an installation block, one side of the installation block is fixedly connected with the inner wall of the sieve box, the installation block is fixedly installed with the raw material sieve plate through a bolt, and the raw material sieve plate is obliquely arranged inside the sieve box.

In a preferred embodiment, the screening box is communicated with the filtering box through a conveying pipe, the bottom end of the conveying pipe is arranged at the top of the raw material screening plate, the top end of the conveying pipe is arranged at the top of the filtering plate, and the bottom end of the conveying pipe is inserted into the reserved hole of the screening box.

In a preferred embodiment, the screening box is fixedly installed with the discharge hopper and the filtering box through a fixing structure and a detaching structure respectively, and the fixing structure and the detaching structure are symmetrically arranged on the outer wall of the screening box.

In a preferred embodiment, the fixing structure comprises a clamping plate, a fixing hole, a threaded column and a threaded cylinder, the clamping plate is fixedly connected to the outer wall of the screening box, the fixing hole is formed in one side of the clamping plate, and the threaded column is fixedly connected with the clamping plate through the threaded cylinder.

In a preferred embodiment, the detaching structure comprises a fixing block, a rotating column, a rotating plate and a clamping hole, the fixing block is fixedly connected to the outer wall of the filter box, the rotating plate is rotatably connected with the fixing block through the rotating column, and the clamping hole is formed in one side of the rotating plate.

In a preferred embodiment, the clamping plate is arranged inside the rotating plate through clamping of the clamping hole, the clamping plate is fixedly installed with the rotating plate through the threaded column, the fixing structures are fixedly installed on the outer wall of the top of the discharge hopper and the outer wall of the top of the sub-sieve box respectively, the disassembling structures are installed on the outer wall of the bottom of the sub-sieve box and the outer wall of the bottom of the filter box respectively, and the disassembling structures and the fixing structures are arranged correspondingly.

In a preferred embodiment, the ash pipe is arranged between the guide plate and the filter plate, the filter plate and the guide plate are both in an inclined structure, the inclined direction of the guide plate corresponds to the arrangement of the ash pipe, and the inclined direction of the filter plate corresponds to the arrangement of the conveying pipe.

In a preferred embodiment, the hook plate is slidably disposed inside the fixing ring through a sliding groove, the shape and size of the sliding groove are matched with those of the hook plate, the rotating ring is rotatably connected with the sleeve plate through a limiting ring, the outer wall of the limiting ring is attached to the inner wall of the limiting groove, and the tooth piece is meshed with the gear.

The invention has the technical effects and advantages that:

1. through the arrangement of the rotating ring, the hook plate and the spring, the rotating ring drives the hook plate to rotate, and then the filter box and the screening box are circularly shaken through the spring at the bottom, so that the feed in the screening device is repeatedly shaken, the screening speed of the feed is accelerated, the screening efficiency of the feed is improved, meanwhile, the continuously-shaken screen plate prevents the feed from being blocked in the screening device, and prevents a large amount of feed from entering the screening device to be accumulated, so that the screening precision of the feed is ensured;

2. through the rose box, the conveyer pipe with divide the setting of sieve case, the fodder passes through the rose box and filters the disintegrating slag dust after, get into through the conveyer pipe and divide the sieve case to carry out the screening of raw materials specification, and then conveniently sift out bulky raw materials, thereby be convenient for carry out the regrinding in the later stage, and go on the filtration and the screening of fodder simultaneously, and form continuous screening, and then the different screening demands of fodder have been satisfied, the multistage screening structure of screening plant has been increased, and then the use value of screening plant has been improved.

3. Through the setting of fixed knot structure, dismantlement structure and installation piece, because the specification of raw materials has more the difference, also need adjust according to the aperture to the sieve when screening, and can dismantle branch sieve case through fixed knot structure and dismantlement structure, then change the raw materials sieve of inside, and then can carry out the regulation of screen cloth according to the specification of raw materials, satisfy the screening of multiple specification, and improved screening plant's suitability.

Drawings

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

FIG. 2 is an exploded view of the swivel and stop collar of the present invention;

FIG. 3 is a schematic view showing a connection structure of a filtering box and a screening box according to the present invention;

FIG. 4 is a schematic view of an internal exploded structure of the filtration tank of the present invention;

FIG. 5 is a schematic view of the connection structure of the installation block and the raw material sieve plate of the present invention;

FIG. 6 is a schematic view of a spatially exploded structure of the sifting box of the present invention;

fig. 7 is an exploded view of the fixing structure and the detaching structure of the present invention.

The reference signs are: 1. a fixed mount; 2. a support pillar; 3. a spring; 4. a support plate; 5. a discharge hopper; 6. a screening box; 7. a raw material sieve plate; 8. mounting blocks; 9. a discharge pipe; 10. an anti-slip ring; 11. a delivery pipe; 12. a fixed structure; 121. clamping a plate; 122. a fixing hole; 123. a threaded post; 124. a threaded barrel; 13. disassembling the structure; 131. a fixed block; 132. turning the column; 133. rotating the plate; 134. a clamping hole; 14. a filter box; 15. an ash discharging pipe; 16. a guide plate; 17. a filter plate; 18. a fixing ring; 19. a chute; 20. a hook plate; 21. rotating the ring; 22. a limiting ring; 23. a tooth sheet; 24. sheathing; 25. a limiting groove; 26. a motor; 27. a gear.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The multi-stage screening device for the raw materials for the pig feed processing shown in the figures 1-3 comprises a fixing frame 1, wherein a supporting column 2 is fixedly installed at the top of the bottom side of the fixing frame 1, a spring 3 for shaking the screening device is fixedly installed at the top end of the supporting column 2, a supporting plate 4 is fixedly connected to the top end of the spring 3, and a discharge hopper 5 is fixedly connected to one side of the supporting plate 4;

the top of the filter box 14 is fixedly connected with a fixing ring 18, the outer wall of the fixing ring 18 is provided with a sliding chute 19, the inner wall of the sliding chute 19 is connected with a hook plate 20 in a sliding manner, one side of the hook plate 20 is fixedly provided with a rotating ring 21, the outer wall of the rotating ring 21 is fixedly connected with a limiting ring 22, the top of the rotating ring 21 is provided with a tooth sheet 23, the outer wall of the limiting ring 22 is movably connected with a sleeve plate 24 for limiting, the inner wall of the sleeve plate 24 is provided with a limiting groove 25, the top of the sleeve plate 24 is fixedly provided with a motor 26, and one side of the motor 26 is fixedly connected with a gear 27;

the supporting column 2 is elastically connected with a supporting plate 4 through a spring 3, and the spring 3 and the supporting plate 4 are symmetrically arranged on the outer wall of the discharge hopper 5;

the hook plate 20 is arranged in the fixing ring 18 in a sliding mode through the sliding groove 19, the shape and the size of the sliding groove 19 are matched with those of the hook plate 20, the rotating ring 21 is rotatably connected with the sleeve plate 24 through the limiting ring 22, the outer wall of the limiting ring 22 is attached to the inner wall of the limiting groove 25, and meanwhile the tooth piece 23 is meshed with the gear 27;

the implementation mode is specifically as follows: motor 26 drives gear 27 and rotates, and then rotate swivel 21 through tooth 23, and swivel 21 rotates through spacing ring 22 in the inside of the spacing groove 25 of lagging 24 when rotating, and because the outside of spacing ring 22 is the bulge column structure, and then can block and rotate inside lagging 24, and lagging 24 supports fixedly through mount 1, and then guarantee the stationarity of lagging 24 and swivel 21, swivel 21's rotation drives hook plate 20, and hook plate 20 rotates in the inside of solid fixed ring 18's spout 19, and because hook plate 20 constructs inside spout 19, and then with solid fixed ring 18 outside pulling rotation, and because hook plate 20's length is less than solid fixed ring 18 vertical state edge to swivel 21's distance, and the structure bottom that solid fixed ring 18 connects is connected through spring 3 and support column 2 again, and then can form solid fixed ring 18 and drive the screening main part and carry out centrifugal rotation, thereby produce and rock the state and sieve the inside fodder.

According to the raw material multi-stage screening device for pig feed processing shown in fig. 3, 4 and 6, a screening box 6 is mounted at the top of a discharge hopper 5, a raw material screening plate 7 for screening raw materials is arranged on the inner wall of the screening box 6, a mounting block 8 for detaching the screening plate is mounted on the edge of the top of the raw material screening plate 7 through bolts, a discharge pipe 9 is fixedly mounted on the inner wall of one side of the screening box 6, an anti-slip ring 10 is sleeved on the outer wall of the discharge pipe 9, a conveying pipe 11 is fixedly connected to the inner wall of the other side of the screening box 6, and a fixing structure 12 is fixedly mounted on the outer wall of the screening box 6;

the screening box 6 is communicated and connected with the filtering box 14 through a conveying pipe 11, the bottom end of the conveying pipe 11 is arranged at the top of the raw material sieve plate 7, the top end of the conveying pipe 11 is arranged at the top of the filtering plate 17, and the bottom end of the conveying pipe 11 is inserted into a reserved hole of the screening box 6;

the ash discharging pipe 15 is arranged between the guide plate 16 and the filter plate 17, the filter plate 17 and the guide plate 16 are both in an inclined structure, the inclined direction of the guide plate 16 corresponds to the ash discharging pipe 15, and the inclined direction of the filter plate 17 corresponds to the conveying pipe 11;

the implementation mode is specifically as follows: put into the back with fodder from solid fixed ring 18's inside, the fodder falls into inside rose box 14, and along with the rocking of screening main part (the screening main part includes rose box 14, divide sieve case 6 and play hopper 5 isotructure), and then sieve the fodder at filter 17 top, and the tiny piece that sieves out and dust guide to play ash pipe 15 through the baffle 16 of slope and discharge, and the fodder at top then gets into through conveyer pipe 11 and divides sieve 6 insidely, and divide sieve 6 inside raw materials sieve 7 of sieve case to sieve the raw materials, the little raw materials of specification are through a hopper 5 ejection of compact, and can carry out connecing of fodder through collecting container and get the collection, the big specification fodder at top passes through discharging pipe 9 and discharges, and discharging pipe 9 and the antiskid circle 10 of the 15 outer wall settings of ash pipe are convenient when collecting the discharge, the collection bag is through fixed lasso on the bobbin, the convenience is to the fixed antiskid effect that plays of collecting the bag.

According to the raw material multi-stage screening device for pig feed processing shown in fig. 3, 4 and 7, a dismounting structure 13 is arranged outside a fixed structure 12, a filter box 14 is fixedly connected to one side of the dismounting structure 13, an ash discharge pipe 15 is fixedly connected to the inner wall of one side of the filter box 14, a guide plate 16 is fixedly connected to the inner wall of the filter box 14, and a filter plate 17 for filtering raw material dust is arranged at the top of the guide plate 16;

the raw material sieve plate 7 is fixedly installed with the sieve separating box 6 through an installation block 8, one side of the installation block 8 is fixedly connected with the inner wall of the sieve separating box 6, the installation block 8 is fixedly installed with the raw material sieve plate 7 through a bolt, and the raw material sieve plate 7 is obliquely arranged inside the sieve separating box 6;

the screening box 6 is respectively fixedly installed with the discharge hopper 5 and the filter box 14 through a fixing structure 12 and a dismounting structure 13, and the fixing structure 12 and the dismounting structure 13 are symmetrically arranged on the outer wall of the screening box 6;

the fixed structure 12 comprises a clamping plate 121, a fixed hole 122, a threaded column 123 and a threaded cylinder 124, the clamping plate 121 is fixedly connected to the outer wall of the sieving box 6, the fixed hole 122 is formed in one side of the clamping plate 121, and the threaded column 123 is fixedly connected with the clamping plate 121 through the threaded cylinder 124;

the disassembling structure 13 comprises a fixed block 131, a rotary column 132, a rotary plate 133 and a clamping hole 134, the fixed block 131 is fixedly connected to the outer wall of the filtering box 14, the rotary plate 133 is rotatably connected with the fixed block 131 through the rotary column 132, and the clamping hole 134 is arranged at one side of the rotary plate 133;

the clamping plate 121 is clamped and arranged inside the rotating plate 133 through a clamping hole 134, the clamping plate 121 is fixedly installed with the rotating plate 133 through a threaded column 123, the fixed structures 12 are fixedly installed on the outer wall of the top of the discharge hopper 5 and the outer wall of the top of the screening box 6 respectively, the dismounting structures 13 are installed on the outer wall of the bottom of the screening box 6 and the outer wall of the bottom of the filtering box 14 respectively, and meanwhile the dismounting structures 13 are arranged corresponding to the fixed structures 12;

the implementation mode is specifically as follows: when the sieve plate needs to be replaced according to the specification of a raw material, the threaded cylinder 124 is screwed off from the outside of the threaded column 123, the threaded column 123 is taken out from the inside of the fixed hole 122, the rotating plate 133 is rotated inside the fixed block 131 through the rotating column 132, the rotating plate 133 is removed from the outside of the clamping plate 121, the fixed structure 12 and the detaching structure 13 above and below the sieve box 6 are detached in the same mode, the discharging pipe 9 is held by a hand to pull out the sieve box 6, the bottom end of the conveying pipe 11 is in sliding insertion connection with the sieve box 6, the sieve box 6 is convenient to detach, after the sieve box 6 is taken out, the bolts on the mounting block 8 are detached, the raw material sieve plate 7 and the mounting block 8 are detached, the raw material sieve plate 7 is taken out from the bottom of the sieve box 6, and then the raw material sieve plate 7 is replaced.

The working principle of the invention is as follows:

referring to the attached drawings 1-3 of the specification, a motor 26 rotates a rotating ring 21 inside a sleeve plate 24 through a gear 27 and a toothed sheet 23, so that a hook plate 20 is driven, the hook plate 20 rotates inside a sliding groove 19 of a fixed ring 18, and the length of the hook plate 20 is smaller than the distance from the vertical state edge of the fixed ring 18 to the rotating ring 21, so that the fixed ring 18 is pulled outwards to rotate when the hook plate 20 rotates, the fixed ring 18 and a screening main body are inclined to move around conveniently through the elasticity of a spring 3, the screening main body is formed to rotate centrifugally, and then the internal feed is screened;

referring to the attached drawings 3, 4 and 6 of the specification, after the feed is poured into the fixed ring 18, the feed falls into the filter box 14, the feed is screened through the filter plate 17 along with the shaking of the screening main body, the screened dust slides to the pipe orifice of the ash discharge pipe 15 through the inclined guide plate 16 and is discharged, the feed at the top enters the screening box 6 through the conveying pipe 11, the raw material is screened through the raw material screen plate 7, the screened raw material is discharged through the discharge hopper 5, and the feed at the top is discharged through the discharge pipe 9;

referring to the attached drawings 3, 4 and 7 of the specification, when the sieve plate is replaced, after the fixing structures 12 and the detaching structures 13 above and below the sieve box 6 are detached, the sieve box 6 is pulled out, then the bolts on the mounting blocks 8 are detached, the raw material sieve plate 7 and the mounting blocks 8 are detached, the raw material sieve plate 7 is taken out from the bottom of the sieve box 6, and then the needed raw material sieve plate 7 is replaced.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a be used for pig feed processing to use raw materials multi-stage screening device, includes mount (1), its characterized in that: the screening device is characterized in that a supporting column (2) is fixedly mounted at the top of the bottom side of the fixing frame (1), a spring (3) used for shaking the screening device is fixedly mounted at the top end of the supporting column (2), a supporting plate (4) is fixedly connected at the top end of the spring (3), a discharging hopper (5) is fixedly connected to one side of the supporting plate (4), a screening box (6) is mounted at the top of the discharging hopper (5), a raw material screening plate (7) used for screening raw materials is arranged on the inner wall of the screening box (6), a mounting block (8) used for dismounting the screening plate is mounted on the edge of the top of the raw material screening plate (7) through bolts, a discharging pipe (9) is fixedly mounted on the inner wall of one side of the screening box (6), an anti-slip ring (10) is sleeved on the outer wall of the discharging pipe (9), a conveying pipe (11) is fixedly connected to the inner wall of the other side of the screening box (6), and a fixing structure (12) is fixedly mounted on the outer wall of the screening box (6);

a disassembly structure (13) is arranged outside the fixed structure (12), a filter box (14) is fixedly connected to one side of the disassembly structure (13), an ash discharge pipe (15) is fixedly connected to the inner wall of one side of the filter box (14), a guide plate (16) is fixedly connected to the inner wall of the filter box (14), and a filter plate (17) for filtering raw material dust is arranged at the top of the guide plate (16);

the top of the filter box (14) is fixedly connected with a fixing ring (18), the outer wall of the fixing ring (18) is provided with a sliding groove (19), the inner wall of the sliding groove (19) is connected with a hook plate (20) in a sliding mode, a rotating ring (21) is fixedly mounted on one side of the hook plate (20), the outer wall of the rotating ring (21) is fixedly connected with a limiting ring (22), the top of the rotating ring (21) is provided with a tooth piece (23), the outer wall of the limiting ring (22) is movably connected with a sleeve plate (24) for limiting, a limiting groove (25) is formed in the inner wall of the sleeve plate (24), the top of the sleeve plate (24) is fixedly mounted with a motor (26), and one side of the motor (26) is fixedly connected with a gear (27);

the supporting column (2) is elastically connected with the supporting plate (4) through a spring (3), and the spring (3) and the supporting plate (4) are symmetrically arranged on the outer wall of the discharge hopper (5);

the hook plate (20) is arranged in the fixing ring (18) in a sliding mode through the sliding groove (19), the shape and the size of the sliding groove (19) are matched with those of the hook plate (20), the rotating ring (21) is rotatably connected with the sleeve plate (24) through the limiting ring (22), the outer wall of the limiting ring (22) is attached to the inner wall of the limiting groove (25), and meanwhile the tooth sheets (23) are meshed with the gear (27);

the working principle is as follows: motor (26) are passed through gear (27) and tooth piece (23) and are rotated swivel (21) in that lagging (24) is inside, and then with hook plate (20) drive, and hook plate (20) are at inside the rotation of spout (19) of solid fixed ring (18), and because the length of hook plate (20) is less than the distance of the vertical condition edge to swivel (21) of solid fixed ring (18), and then with solid fixed ring (18) outside pulling rotation when hook plate (20) rotate, and the elasticity through spring (3) is convenient with solid fixed ring (18) and screening main part to slope removal all around.

2. The multi-stage screening device for the raw materials for pig feed processing according to claim 1, characterized in that: raw materials sieve (7) are through installation piece (8) and branch sieve case (6) fixed mounting, and one side of installation piece (8) and the inner wall fixed connection who divides sieve case (6) to installation piece (8) are through bolt and raw materials sieve (7) fixed mounting, and raw materials sieve (7) are the slope form moreover and set up in the inside of dividing sieve case (6).

3. The multi-stage screening device for the raw materials for pig feed processing according to claim 1, characterized in that: divide sieve case (6) to communicate with each other through conveyer pipe (11) and rose box (14) to be connected, and the bottom setting of conveyer pipe (11) is at the top of raw materials sieve (7), and the top setting of conveyer pipe (11) is at the top of filter (17), and the bottom of conveyer pipe (11) is pegged graft with the reservation hole of dividing sieve case (6) in addition.

4. The multi-stage screening device for the raw materials for pig feed processing according to claim 1, characterized in that: divide sieve case (6) through fixed knot construct (12) and dismantle structure (13) respectively with go out hopper (5) and rose box (14) fixed mounting, and fixed knot construct (12) and dismantle structure (13) symmetry setting at the outer wall that divides sieve case (6).

5. The multi-stage screening device for the raw materials for pig feed processing according to claim 4, characterized in that: fixed knot constructs (12) including cardboard (121), fixed orifices (122), screw thread post (123) and a screw thread section of thick bamboo (124), and cardboard (121) fixed connection divides the outer wall of sieve case (6), and fixed orifices (122) set up in one side of cardboard (121) to screw thread post (123) are through a screw thread section of thick bamboo (124) and cardboard (121) fixed connection.

6. The multi-stage screening device for the raw materials for pig feed processing according to claim 4, characterized in that: dismantle structure (13) and include fixed block (131), rotary column (132), commentaries on classics board (133) and card hole (134), and fixed block (131) fixed connection is in the outer wall of rose box (14) to rotary board (133) are connected through rotary column (132) and fixed block (131) rotation, and card hole (134) are seted up in one side of changeing board (133) moreover.

7. The multi-stage screening device for the raw materials for pig feed processing according to claim 5, characterized in that: cardboard (121) are through card hole (134) block setting in the inside of changeing board (133), and cardboard (121) pass through screw thread post (123) and change board (133) fixed mounting, and fixed knot constructs (12) fixed mounting respectively at the top outer wall of play hopper (5) and the top outer wall of branch sieve case (6), and dismantle structure (13) and install the bottom outer wall at the bottom outer wall of branch sieve case (6) and rose box (14) respectively, dismantle structure (13) simultaneously and correspond the setting with fixed knot structure (12).

8. The multi-stage screening device for the raw materials for pig feed processing according to claim 1, characterized in that: ash pipe (15) set up between baffle (16) and filter (17), and filter (17) and baffle (16) all are slope column structure to the incline direction of baffle (16) corresponds ash pipe (15) and sets up, and the incline direction of filter (17) corresponds conveyer pipe (11) and sets up moreover.