CN115999891A

CN115999891A - Raw material screening device for pig feed processing

Info

Publication number: CN115999891A
Application number: CN202211142858.2A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2023-04-25
Also published as: CN114247634A; CN114247634B; CN115338100A

Abstract

The invention discloses a raw material screening device for pig feed processing, and particularly relates to the technical field related to pig feed processing. According to the invention, the swivel drives the hook plate to rotate, so that the filter box and the screening box are subjected to annular shaking through the springs 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 shaking screen plate prevents the feed from being blocked in the screening device, a large amount of feed is prevented from entering the screening device to be accumulated, and the screening precision of the feed is further ensured.

Description

Raw material screening device for pig feed processing

Technical Field

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

Background

Pig feed is usually a feed for raising pigs, which consists of protein feed, energy feed, coarse feed, green feed, silage, mineral feed and feed additives, and the complete feed sold in the market is mainly a granular feed which is granulated by machine processing, and part of the complete feed is expanded granular feed which can be directly used for feeding a feeding object, so that the nutritional requirements of the feeding object can be comprehensively met, in the processing of pig feed, various raw materials are crushed and then are required to be mixed or granulated, and as the crushed raw materials have thickness differences, a screening device is required to be used for screening the raw materials, and further the quality of later processing is ensured.

The invention discloses a screening device for pig feed processing, which comprises a screening box, wherein supporting legs are fixedly connected to the left side and the right side of the screening box close to the bottom of the screening box, and a protecting cover is arranged at the top of the screening box.

Above-mentioned prior art scheme will pelletize the back kibbling fodder and screen out, and then guarantee the quality of fodder, but at the in-process of screening through screening about forming continuous screening, but can not screen into multiple specification simultaneously with the fodder, inconvenient screen out inside dust in the screening specification.

Meanwhile, the efficiency of self-sliding screening of the feed is too low through inclined screening, the feed is easy to accumulate when more feed is simultaneously input, fine screening can not be performed on the feed, the screening quality and efficiency of the feed are reduced, and then a screening device capable of carrying out multistage screening on the feed and high in efficiency is needed.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides a raw material screening device for pig feed processing, which shakes a filter box and a screening box simultaneously through a swivel and a hook plate, so that internal feed is convenient to screen rapidly, and the feed is filtered and screened simultaneously, so that the problems in the background art are solved.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a raw materials screening plant for pig feed processing, includes the mount, the bottom side top fixed mounting of mount has the support column, and the top fixed mounting of support column has the spring that is used for rocking screening plant, the top fixedly connected with backup pad of spring, and one side fixedly connected with ejection of compact fill of backup pad, the top of play hopper is installed and is divided the sieve case, and divides the inner wall of sieve case to be provided with the raw materials sieve board that is used for sieving the raw materials, and the top edge bolt of raw materials sieve board installs the installation piece that is used for dismantling the sieve, divide one side inner wall fixed mounting of sieve case to have the discharging pipe, and the outer wall of discharging pipe has cup jointed the antiskid circle to divide the opposite side inner wall fixedly connected with conveyer pipe of sieve case, divide the outer wall fixed mounting of sieve case to have fixed knot constructs;

the outer part of the fixing structure is provided with a dismounting structure, one side of the dismounting structure is fixedly connected with a filter box, one side inner wall of the filter box is fixedly connected with an ash outlet pipe, the inner wall of the filter box is fixedly connected with a guide plate, and the top of the guide plate is provided with a filter plate for filtering raw material dust;

the top fixedly connected with solid fixed ring of rose box, and the spout has been seted up to gu the outer wall of fixed ring, the inner wall sliding connection of spout has the hook plate, and one side fixed mounting of hook plate has the swivel, the outer wall fixedly connected with spacing ring of swivel, and the top of swivel is provided with the tooth piece, the outer wall removal of spacing ring is connected with the cover board that is used for spacing, and the limiting groove has been seted up to the inner wall of cover board, the top fixed mounting of cover board has the motor, and one side fixedly connected with gear of motor.

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

In a preferred embodiment, the raw material screen plate is fixedly mounted with the screening box through a mounting block, one side of the mounting block is fixedly connected with the inner wall of the screening box, the mounting block is fixedly mounted with the raw material screen plate through bolts, and the raw material screen plate is obliquely arranged inside the screening box.

In a preferred embodiment, the screening box is connected 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 spliced with the reserved holes of the screening box.

In a preferred embodiment, the screening box is fixedly installed with the discharge hopper and the filter 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, wherein 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 dismounting structure comprises a fixed block, a rotating column, a rotating plate and a clamping hole, wherein the fixed block is fixedly connected to the outer wall of the filter box, the rotating plate is rotationally connected with the fixed block through the rotating column, and the clamping hole is formed in one side of the rotating plate.

In a preferred embodiment, the cardboard passes through the draw-in groove block and sets up in the inside of revolving board, and cardboard passes through screw thread post and revolving board fixed mounting to fixed knot constructs fixed mounting respectively at the top outer wall of play hopper and the top outer wall of dividing the sieve case, and the dismantlement structure is installed respectively at the bottom outer wall of dividing the sieve case and the bottom outer wall of rose box moreover, and the dismantlement structure corresponds the setting with fixed knot structure simultaneously.

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

In a preferred embodiment, the hook plate is slidably arranged inside the fixed ring through the sliding groove, the shape and the size of the sliding groove are matched with those of the hook plate, the swivel is rotationally connected with the sleeve plate through the 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 swivel, the hook plate and the springs, the swivel drives the hook plate to rotate, and then the filter box and the screening box are subjected to annular shaking through the springs at the bottom, so that the feed inside 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 shaking screen plate prevents the feed from being blocked inside the screening device, a large amount of feed is prevented from entering the screening device to be accumulated, and the screening precision of the feed is further ensured;

2. through the setting of rose box, conveyer pipe and branch screen box, after the fodder passes through rose box filtration broken slag dust, gets into the screening of dividing the screen box and carry out the raw materials specification through the conveyer pipe, and then conveniently sift out the oversized raw materials to be convenient for carry out secondary crushing in later stage, and carry out the filtration and the screening of fodder simultaneously, and form continuous screening, and then satisfied the different screening demands of fodder, increased screening plant's multistage screening structure, and then improved screening plant's use value.

3. Through fixed knot constructs, dismantles the setting of structure and installation piece, because the specification of raw materials is many different, also need adjust according to the aperture to the sieve when the screening, and can dismantle the branch sieve case through fixed knot constructs and dismantles the structure, then changes inside raw material sieve, and then can carry out the regulation of screen cloth according to the specification of raw materials, satisfies the screening of multiple specification, and has improved screening plant's suitability.

Drawings

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

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

FIG. 3 is a schematic diagram of the connection structure of the filter box and the screening box of the present invention;

FIG. 4 is a schematic view of the internal exploded structure of the filter box of the present invention;

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

FIG. 6 is a schematic view of the spatially exploded construction of the screening box of the present invention;

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

The reference numerals are: 1. a fixing frame; 2. a support column; 3. a spring; 4. a support plate; 5. discharging a hopper; 6. screening boxes; 7. a raw material sieve plate; 8. a mounting block; 9. a discharge pipe; 10. an anti-slip ring; 11. a delivery tube; 12. a fixed structure; 121. a clamping plate; 122. a fixing hole; 123. a threaded column; 124. a thread cylinder; 13. disassembling the structure; 131. a fixed block; 132. a rotating column; 133. a rotating 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. a swivel; 22. a limiting ring; 23. a tooth plate; 24. a sleeve plate; 25. a limit groove; 26. a motor; 27. a gear.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

According to the raw material screening device for pig feed processing shown in fig. 1-3, the pig feed processing raw material screening device comprises a fixing frame 1, wherein a supporting column 2 is fixedly arranged at the top of the bottom side of the fixing frame 1, a spring 3 for shaking the screening device is fixedly arranged at the top end of the supporting column 2, a supporting plate 4 is fixedly connected at the top end of the spring 3, and a discharge hopper 5 is fixedly connected at one side of the supporting plate 4;

the top of the filter box 14 is fixedly connected with a fixed ring 18, a chute 19 is formed in the outer wall of the fixed ring 18, a hook plate 20 is slidably connected to the inner wall of the chute 19, a rotating ring 21 is fixedly arranged on one side of the hook plate 20, a limiting ring 22 is fixedly connected to the outer wall of the rotating ring 21, a tooth piece 23 is arranged at the top of the rotating ring 21, a sleeve plate 24 used for limiting is movably connected to the outer wall of the limiting ring 22, a limiting groove 25 is formed in the inner wall of the sleeve plate 24, a motor 26 is fixedly arranged at the top of the sleeve plate 24, and a gear 27 is fixedly connected to one side of the motor 26;

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

the hook plate 20 is arranged in the fixed ring 18 in a sliding way 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 rotationally 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 specifically comprises the following steps: the motor 26 drives the gear 27 to rotate, and then rotate the swivel 21 through the tooth piece 23, and rotate inside the spacing groove 25 of the sleeve plate 24 through the spacing ring 22 when the swivel 21 rotates, and because the outside of spacing ring 22 is protruding form structure, and then can block at the inside rotation of sleeve plate 24, and sleeve plate 24 supports fixedly through mount 1, and then guarantee the stationarity of sleeve plate 24 and swivel 21, the rotation of swivel 21 drives the hook plate 20, and hook plate 20 rotates inside spout 19 of fixed ring 18, and because hook plate 20 constructs inside spout 19, and then outwards stimulate the rotation with fixed ring 18, and because the length of hook plate 20 is less than the distance of fixed ring 18 vertical state edge to swivel 21, and the structure bottom that fixed ring 18 connects is connected through spring 3 and support column 2 again, and then can form fixed ring 18 to drive screening main part and carry out centrifugal rotation, thereby produce the rocking state and sieve inside fodder.

According to the raw material screening device for pig feed processing shown in fig. 3, 4 and 6, a screening box 6 is installed 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, an installation block 8 for disassembling the screening plate is installed on the top edge bolt of the raw material screening plate 7, a discharge pipe 9 is fixedly installed 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 on the inner wall of the other side of the screening box 6, and a fixing structure 12 is fixedly installed 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 screen 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 spliced with reserved holes of the screening box 6;

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

the implementation mode specifically comprises the following steps: after putting into the fodder from the inside of solid fixed ring 18, the fodder falls into rose box 14 inside, and along with screening main part rocks (screening main part includes rose box 14, divide sieve case 6 and go out hopper 5 isotructure), and then sieve the fodder at filter 17 top, and tiny piece and the dust that just sieves out guide the ash pipe 15 discharge through inclined baffle 16, and the fodder at top then gets into the inside of dividing sieve case 6 through conveyer pipe 11, and divide the inside raw materials sieve 7 of sieve case 6 to sieve the raw materials, the raw materials that the specification is little passes through out hopper 5 ejection of compact, and can collect through collecting the container taking of fodder, the slightly big specification fodder at top is discharged through discharging pipe 9, and the antiskid circle 10 that discharging pipe 9 and ash pipe 15 outer wall set up is convenient when collecting the discharge, collecting the bag is through fixed rope sleeve on the tube, the convenience plays anti-skidding effect to collecting the fixed of bag.

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

the raw material screen plate 7 is fixedly installed with the screening box 6 through an installation block 8, one side of the installation block 8 is fixedly connected with the inner wall of the screening box 6, the installation block 8 is fixedly installed with the raw material screen plate 7 through bolts, and the raw material screen plate 7 is obliquely arranged in the screening box 6;

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

the fixing structure 12 comprises a clamping plate 121, a fixing hole 122, a threaded column 123 and a threaded cylinder 124, wherein the clamping plate 121 is fixedly connected to the outer wall of the screening box 6, the fixing 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 disassembly structure 13 comprises a fixed block 131, a rotary column 132, a rotary plate 133 and a clamping hole 134, wherein the fixed block 131 is fixedly connected to the outer wall of the filter 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 formed in one side of the rotary plate 133;

the clamping plate 121 is arranged in the rotating plate 133 in a clamping way through the clamping hole 134, the clamping plate 121 is fixedly arranged with the rotating plate 133 through the threaded column 123, the fixed structure 12 is respectively and fixedly arranged on the top outer wall of the discharge hopper 5 and the top outer wall of the screening box 6, the dismounting structure 13 is respectively arranged on the bottom outer wall of the screening box 6 and the bottom outer wall of the filtering box 14, and meanwhile, the dismounting structure 13 is correspondingly arranged with the fixed structure 12;

the implementation mode specifically comprises the following steps: when the sieve plate is required to be replaced according to the specification of raw materials, the threaded cylinder 124 is unscrewed from the outside of the threaded column 123, then the threaded column 123 is taken out from the inside of the fixing hole 122, the rotary plate 133 is rotated in the fixing block 131 through the rotary column 132, then the rotary plate 133 is removed from the outside of the clamping plate 121, the fixed structure 12 and the dismounting structure 13 on the upper side and the lower side of the sieve box 6 are dismounted in the same mode, the sieve box 6 is pulled out by holding the discharging pipe 9, and the bottom end of the conveying pipe 11 is in sliding plug connection with the sieve box 6, so that the sieve box 6 is convenient to dismount, after the sieve box 6 is taken out, the bolts on the mounting block 8 are dismounted, then the raw material sieve plate 7 and the mounting block 8 are dismounted, 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 fig. 1-3 of the specification, a motor 26 rotates a swivel 21 in a sleeve plate 24 through a gear 27 and a tooth piece 23, so that a hook plate 20 is driven, the hook plate 20 rotates in a chute 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 swivel 21, so that the fixed ring 18 is pulled outwards to rotate when the hook plate 20 rotates, and the fixed ring 18 and a screening main body are conveniently and obliquely moved to the periphery through the elasticity of a spring 3, so that a screening main body is formed to centrifugally rotate, and then internal feeds are screened;

referring to fig. 3, 4 and 6 of the specification, after the feed is poured from the inside of the fixing ring 18, the feed falls into the inside of the filter box 14, the feed is screened through the filter plate 17 as the screening body shakes, and the screened dust slides to the mouth of the ash discharge pipe 15 through the inclined guide plate 16 to be discharged, and the feed at the top enters the inside of the screening box 6 through the conveying pipe 11 and is screened through the raw material screening 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 fig. 3, 4 and 7 of the specification, when the screen plate is replaced, after the fixing structure 12 and the detaching structure 13 on the upper and lower sides of the screening box 6 are disassembled, the screening box 6 is pulled out, then the bolts on the mounting blocks 8 are detached, then the raw material screen plate 7 and the mounting blocks 8 are detached, then the raw material screen plate 7 is taken out from the bottom of the screening box 6, and then the required raw material screen plate 7 is replaced.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. Raw material screening device for pig feed processing, including mount (1), its characterized in that: the utility model discloses a screening device, including fixing frame (1), support column (2) is fixedly installed at the bottom side top of fixing frame (1), and the top fixed mounting of support column (2) has spring (3) that are used for rocking screening device, the top fixedly connected with backup pad (4) of spring (3), and one side fixedly connected with ejection of compact fill (5) of backup pad (4), divide sieve case (6) are installed at the top of ejection of compact fill (5), and divide the inner wall of sieve case (6) to be provided with raw materials sieve plate (7) that are used for screening the raw materials to the top edge bolt of raw materials sieve plate (7) installs installation piece (8) that are used for dismantling the sieve, divide one side inner wall fixed mounting of sieve case (6) to have discharging pipe (9), and the outer wall of discharging pipe (9) cup joint antiskid circle (10), and divide the opposite side inner wall fixedly connected with conveyer pipe (11) of sieve case (6), divide the outer wall fixed mounting of sieve case (6) to have fixed knot constructs (12).

The dust filter is characterized in that a dismounting structure (13) is arranged outside the fixing structure (12), one side of the dismounting structure (13) is fixedly connected with a filter box (14), one side inner wall of the filter box (14) is fixedly connected with a dust outlet pipe (15), the inner wall of the filter box (14) is fixedly connected with a guide plate (16), and the top of the guide plate (16) is provided with a filter plate (17) for filtering raw material dust;

the top fixedly connected with solid fixed ring (18) of rose box (14), and spout (19) have been seted up to the outer wall of solid fixed ring (18), the inner wall sliding connection of spout (19) has hook plate (20), and one side fixed mounting of hook plate (20) has swivel (21), the outer wall fixedly connected with spacing ring (22) of swivel (21), and the top of swivel (21) is provided with tooth piece (23), the outer wall removal of spacing ring (22) is connected with sleeve plate (24) that are used for spacing, and the limiting groove (25) have been seted up to the inner wall of sleeve plate (24), the top fixed mounting of sleeve plate (24) has motor (26), and one side fixedly connected with gear (27) of motor (26);

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

the hook plate (20) is arranged in the fixed ring (18) in a sliding way 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 rotary ring (21) is rotationally 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);

working principle: the motor (26) rotates the swivel (21) inside the sleeve plate (24) through the gear (27) and the tooth piece (23), so that the hook plate (20) is driven, the hook plate (20) rotates inside the chute (19) of the fixed ring (18), and the fixed ring (18) and the screening main body are conveniently moved obliquely to the periphery through the elasticity of the spring (3) because the length of the hook plate (20) is smaller than the distance from the vertical state edge of the fixed ring (18) to the swivel (21), and the fixed ring (18) is pulled outwards to rotate when the hook plate (20) rotates;

the screening box (6) is fixedly installed with the discharging hopper (5) and the filtering box (14) through the fixing structure (12) and the 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 disassembly structure (13) comprises a fixed block (131), a rotating column (132), a rotating plate (133) and a clamping hole (134), wherein the fixed block (131) is fixedly connected to the outer wall of the filter box (14), the rotating plate (133) is rotationally connected with the fixed block (131) through the rotating column (132), and the clamping hole (134) is formed in one side of the rotating plate (133).

2. The raw material screening device for pig feed processing according to claim 1, wherein: raw materials sieve (7) pass through installation piece (8) and divide sieve case (6) fixed mounting, and one side of installation piece (8) and divide the inner wall fixed connection of sieve case (6) to installation piece (8) pass through bolt and raw materials sieve (7) fixed mounting, and raw materials sieve (7) are the slope form and set up in the inside of dividing sieve case (6) moreover.

3. The raw material screening device for pig feed processing according to claim 1, wherein: the screening box (6) is communicated 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 screening 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 spliced with a reserved hole of the screening box (6).

4. The raw material screening device for pig feed processing according to claim 1, wherein: 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 of inclined structures, 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).