Double-layer cylinder screening equipment for removing impurities in feed preparation raw materials

Abstract

The invention discloses double-layer cylinder screening equipment for removing impurities in feed preparation raw materials, relates to the technical field of feed screening, and aims to solve the technical problem that an existing feed screening device is poor in screening quality. A raw material chopping mechanism is arranged on a conveying mechanism, a supporting frame is arranged on one side of the conveying mechanism and the raw material chopping mechanism, a raw material smashing mechanism is arranged at the top end of the supporting frame, and a double-layer cylinder screening mechanism is arranged in the supporting frame. According to the feed screening device, impurities such as surface mold and dirt influencing the feed quality are removed, then straw briquette feed is smashed through the raw material smashing mechanism, then the smashed straw briquette feed is finely processed through a rotary stirring assembly and a rotary spraying assembly of the double-layer cylinder screening mechanism, the problem that an existing feed screening device is poor in screening quality is solved, and the feed quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of feed screening, and more specifically to a double-layer drum screening device for removing impurities from feed preparation raw materials. Background Art

[0002] In the feed preparation industry, quality control of feed raw materials is crucial. At present, common feed raw materials such as straw briquette feed are mostly compressed into bundles for easy storage and transportation. However, this storage and transportation method brings a series of problems.

[0003] During storage and transportation, due to environmental factors, the surface of these bundled and compressed feed materials is very susceptible to moisture. The intrusion of moisture provides a breeding ground for mold, causing the feed to mold and deteriorate. At the same time, in the complex storage and transportation environment, the feed materials are also prone to adhere to various dirty substances.

[0004] If these problematic feed raw materials are directly crushed and screened, many adverse consequences will occur. On the one hand, moldy and contaminated raw materials will greatly reduce the quality of the feed, making the nutritional value of the feed greatly reduced and unable to meet the needs of livestock growth and development. On the other hand, the presence of impurities will seriously affect the screening efficiency. Dirty substances may clog the screen, resulting in obstruction of the screening process, requiring frequent cleaning of the screen, increasing production costs and time costs.

[0005] What is more serious is that if untreated feed raw materials are directly screened and used to feed livestock, it will pose a serious threat to the health of livestock. Livestock eating feed containing mold and dirt is very likely to cause various diseases, reduce livestock immunity, increase breeding risks, and bring huge economic losses to farmers.

[0006] In summary, the existing feed raw material processing methods have obvious defects, and there is an urgent need for a device that can effectively remove impurities from feed raw materials, improve feed quality and screening efficiency, and ensure the health of livestock. In view of this, we propose a double-layer drum screening device for removing impurities from feed preparation raw materials. Summary of the invention

[0007] The object of the present invention is to provide a double-layer drum screening device for removing impurities from feed preparation raw materials, so as to solve the technical problem that the screening quality of existing feed screening devices is poor.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: A double-layer drum screening device for removing impurities from feed preparation raw materials, comprising a conveying mechanism, a raw material chopping mechanism is provided on the conveying mechanism, a support frame is provided on one side of the output end of the conveying mechanism, a raw material crushing mechanism is provided on the top of the support frame, the input end of the raw material crushing mechanism is provided at the output end of the conveying mechanism, a double-layer drum screening mechanism is provided inside the support frame, and the input end of the double-layer drum screening mechanism is connected to the output end of the raw material crushing mechanism; The double-layer cylindrical screening mechanism includes a screening shell group, a vibration motor, a spring assembly, a screen plate assembly, a rotary dial assembly and a rotary spray assembly. The screening shell group is arranged inside the supporting frame, the top of the screening shell group is connected to the bottom of the raw material crushing mechanism, the vibration motor is arranged at the bottom of the screening shell group, the spring assembly is arranged on the screening shell group, the screen plate assembly is arranged inside the screening shell group, the rotary dial assembly is rotatably arranged at the top of the screen plate assembly, and the rotary spray assembly is rotatably arranged at the center of the top of the screen plate assembly.

[0009] Preferably, the screening shell group includes legs, a chassis, an outer cylinder, a top plate, an inlet and a discharge pipe, several of the legs are arranged at the bottom end of the support frame, the chassis is arranged at the top of several of the legs, the spring assembly is arranged at the top of the chassis, the outer cylinder is arranged at the top of the spring assembly, the screen plate assembly is arranged inside the outer cylinder, the top plate is arranged at the top of the outer cylinder, the inlet is arranged on the top plate and connected to the output end of the raw material crushing mechanism, and several of the discharge pipes are arranged on the outer wall of the outer cylinder.

[0010] Preferably, the sieve plate assembly includes a first sieve plate, a second sieve plate and a through hole, the first sieve plate is arranged at the top of the outer cylinder, two of the second sieve plates are vertically and equidistantly arranged on the inner wall of the outer cylinder, the through hole is opened at the center of the first sieve plate, the rotary dial assembly is rotatably arranged on the first sieve plate, and the rotary spray assembly is rotatably inserted into the through hole.

[0011] Preferably, the rotary dial assembly includes a rotating ring, a paddle blade, a gear rod, a servo motor and a driving block. The rotating ring is rotatably arranged at the top of the screen plate assembly, the paddle blades are arranged in a ring shape and at equal intervals on the inner wall of the rotating ring, the gear rod is arranged in a ring shape and at equal intervals on the top of the rotating ring, the servo motor is arranged on the outer wall of the screening shell group, one end of the driving block is fixedly connected to the output end of the servo motor, and the other end of the driving block is meshingly connected to the gear rod.

[0012] Preferably, the rotary spray assembly includes a center gear, a motor, a driving gear, a rotating block, an air pipe and a hemisphere, the center gear is rotatably arranged at the top of the screen plate assembly, the motor is arranged at a position of the screen plate assembly close to the side of the center gear, one end of the driving gear is connected to the motor output end, and the other end of the driving gear is meshed and connected to the center gear, the rotating block is fixed on the center gear, one end of the air pipe is rotatably connected to the rotating block, and the other end of the air pipe is connected to an external air supply mechanism, and the hemisphere is fixed at the top of the rotating block.

[0013] Preferably, an air cavity is provided inside the rotating block, and curved grooves are provided in a circular shape with equal intervals on the rotating block. The air pipe, the air cavity and the curved grooves are connected to each other, and the curved groove is connected to the outer wall of the rotating block at one end away from the air cavity.

[0014] Preferably, the raw material chopping mechanism includes a supporting assembly, a pressing assembly, a dual-purpose chopping assembly, an adjusting assembly and a waste clearing assembly, the supporting assembly is arranged on the conveying mechanism, the pressing assembly is arranged at the top of the supporting assembly, the dual-purpose chopping assembly is hoisted at the output end of the pressing assembly, one end of the adjusting assembly is arranged on the supporting assembly, and the other end of the adjusting assembly is connected to the dual-purpose chopping assembly, and the waste clearing assembly is arranged at the output end of the conveying mechanism.

[0015] Preferably, the support assembly includes a support frame, a column, a long hole and a fixed block, the support frame is arranged on the conveying mechanism, the column is arranged at the top of the support frame, the long hole is opened on the support frame, the fixed block is arranged on the support frame near the long hole, the pressing down assembly is arranged on the column, the adjusting assembly is arranged on the fixed block and passes through the long hole to be connected to the dual-purpose cutting assembly.

[0016] Preferably, the dual-purpose cutting assembly includes a fixed top ring, a rotating blade, a rotating ring, a fixed bottom ring, a limiting rod, a guide groove, a movable hole, an adjustment groove and an adjusting rod. The fixed top ring is hoisted at the output end of the downward pressure assembly, the fixed bottom ring is fixedly connected to the bottom end of the fixed top ring, the rotating ring is rotatably arranged on the fixed bottom ring, the rotating blades are movably arranged between the rotating ring and the fixed bottom ring in a ring-shaped and equidistant manner, the limiting rod is arranged on the rotating blades, the guide grooves are opened at the bottom end of the rotating ring in a ring-shaped and equidistant manner, the movable holes are opened at the fixed bottom ring in a ring-shaped and equidistant manner, the adjustment grooves are opened on the outer wall of the fixed bottom ring, one end of the adjusting rod is fixedly connected to the outer wall of the rotating ring, and the other end of the adjusting rod is connected to the adjusting assembly.

[0017] Preferably, a first cutting blade is provided on one side of the rotating blade, and a second cutting blade is provided at the bottom end of the rotating blade.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention improves the structure of the existing feed screening equipment by arranging a raw material chopping mechanism on the conveying mechanism, arranging a supporting frame on one side of the conveying mechanism and the raw material chopping mechanism, arranging a raw material crushing mechanism on the top of the supporting frame, and arranging a double-layer cylindrical screening mechanism inside the supporting frame. The straw briquette feed raw material is firstly briquette the outer surface through the raw material chopping mechanism to remove surface mold, dirt and other impurities that affect the feed quality, and then the straw briquette feed is crushed by the raw material crushing mechanism, and then the crushed straw briquette feed is finely processed by the rotary dial component and the rotary spray component of the double-layer cylindrical screening mechanism, so as to solve the problem of poor screening quality of the existing feed screening device and improve the feed quality.

[0019] 2. In the present invention, the servo motor is driven to drive the driving block to rotate, the driving block engages with the driving gear rod to drive the rotating ring to rotate, and the rotating ring drives the paddle blades to rotate. The rotation of the paddle blades sweeps out the straw branches, debris and other light waste materials that affect the quality of the feed in the feed raw materials, and cooperates with the blowing of the rotary spray component to prevent these impurities from mixing into the finished feed, thereby ensuring the purity of the feed quality, making the proportion of various nutrients in the feed more scientific and reasonable, and avoiding the problem of uneven distribution of other nutrients due to excessive impurities occupying space, so that livestock can take in more balanced nutrition and promote their healthy growth.

[0020] 3. In the present invention, the driving motor drives the driving gear to rotate, the driving gear meshes with the driving center gear to rotate, the center gear drives the rotating block to rotate, the external air supply mechanism supplies air through the air pipe, and injects it into the air cavity of the rotating block, and the gas is rotated and sprayed out through the curved throwing groove, and the straw branches, debris and other impurities are blown out toward the inner wall of the outer cylinder, and the impurities are rotated into the discharge pipe for discharge with the help of the rotary dial component, which further improves the impurity removal efficiency, ensures that the impurities in the feed raw materials can be completely removed, and avoids impurity residues that affect subsequent processing and feed quality.

[0021] 4. The pressing component in the present invention is a cylinder, which drives the double-purpose chopping component to press down by driving the cylinder to return, thereby changing the vertical height of the double-purpose chopping component. The adjusting component is an electric push rod, which pushes the double-purpose chopping component to adjust or chop part of it, thereby realizing the multiple functions of chopping the top, bottom or outer wall of the feed raw materials. All-round cutting is achieved through only one set of choppers. Compared with traditional equipment with multiple sets of choppers or multiple cutter heads, it not only significantly saves layout space but also avoids replacing multiple cutter heads. In addition, the operation of a single chopper is simpler, and the operator does not need to switch between different cutter heads, which reduces the possibility of operating errors, further reduces production and operation costs, and ensures the continuity and stability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the overall structure of one side of the present invention; Figure 2 It is a schematic diagram of the overall structure of the other side of the present invention; Figure 3 It is a schematic structural diagram of the raw material chopping mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the dual-purpose cutting assembly and the adjusting assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the dual-purpose cutting assembly disassembly and adjustment assembly of the present invention; Figure 6 For the present invention Figure 5 A magnified view of the structure at A; Figure 7 It is a schematic diagram of the structure of the support frame, raw material crushing mechanism and double-layer drum screening mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the double-layer cylindrical screening mechanism of the present invention; Fig. 9 It is a schematic diagram of the split structure of the double-layer cylindrical screening mechanism of the present invention; Fig.10 It is a schematic diagram of the internal structure of the double-layer cylindrical screening mechanism of the present invention; Fig.11 It is a schematic diagram of the structure of the sieve plate assembly, the rotary dial assembly and the rotary spray assembly of the present invention; Fig.12 It is a schematic diagram of the disassembled structure of the sieve plate assembly, the rotary dial assembly and the rotary spray assembly of the present invention; Fig.13 It is a schematic diagram of the top view of the rotary dial assembly and the rotary spray assembly of the present invention; Fig.14 It is a schematic diagram of the split structure of the rotary spray assembly of the present invention; Fig.15 It is a schematic diagram of the cross-sectional structure of the rotating block of the present invention.

[0023] Description of the numbers in the figure: 1. Conveying mechanism; 2. Raw material chopping mechanism; 3. Support frame; 4. Raw material crushing mechanism; 5. Double-layer drum screening mechanism; 201, support assembly; 202, pressing assembly; 203, dual-purpose cutting assembly; 204, adjustment assembly; 205, waste removal assembly; 2011, support frame; 2012, column; 2013, long hole; 2014, fixing block; 2031, fixed top ring; 2032, rotating blades; 2033, rotating ring; 2034, fixed bottom ring; 2035, limiting rod; 2036, guide groove; 2037, movable hole; 2038, adjusting groove; 2039, adjusting rod; 2061, a first cutting blade; 2062, a second cutting blade; 501, screening shell assembly; 502, vibration motor; 503, spring assembly; 504, sieve plate assembly; 505, rotary dial assembly; 506, rotary spray assembly; 5011, supporting legs; 5012, bottom plate; 5013, outer cylinder; 5014, top plate; 5015, inlet; 5016, outlet pipe; 5041, first sieve plate; 5042, second sieve plate; 5043, through hole; 5051, rotating ring; 5052, paddle blade; 5053, gear rod; 5054, servo motor; 5055, driving block; 5061. Center gear; 5062. Motor; 5063. Driving gear; 5064. Rotating block; 5065. Air pipe; 5066. Hemisphere; 5067. Air cavity; 5068. Curved groove. DETAILED DESCRIPTION

[0024] like Figures 1 to 15 As shown, the present invention relates to a double-layer drum screening device for removing impurities from raw materials for feed preparation, comprising a conveying mechanism 1, on which a raw material chopping mechanism 2 is provided, a support frame 3 is provided at one side of the output end of the conveying mechanism 1, a raw material crushing mechanism 4 is provided at the top of the support frame 3, the input end of the raw material crushing mechanism 4 is provided at the output end of the conveying mechanism 1, a double-layer drum screening mechanism 5 is provided inside the support frame 3, and the input end of the double-layer drum screening mechanism 5 is connected to the output end of the raw material crushing mechanism 4; The double-layer cylindrical screening mechanism 5 includes a screening shell group 501, a vibration motor 502, a spring assembly 503, a screen plate assembly 504, a rotary dial assembly 505 and a rotary spray assembly 506. The screening shell group 501 is arranged inside the supporting frame 3, and the top of the screening shell group 501 is connected to the bottom of the raw material crushing mechanism 4. The vibration motor 502 is arranged at the bottom of the screening shell group 501, the spring assembly 503 is arranged on the screening shell group 501, the screen plate assembly 504 is arranged inside the screening shell group 501, the rotary dial assembly 505 is rotatably arranged at the top of the screen plate assembly 504, and the rotary spray assembly 506 is rotatably arranged at the center of the top of the screen plate assembly 504. The present invention improves the structure of the existing feed screening equipment by arranging a raw material chopping mechanism 2 on the conveying mechanism 1, arranging a supporting frame 3 on one side of the conveying mechanism 1 and the raw material chopping mechanism 2, arranging a raw material crushing mechanism 4 on the top of the supporting frame 3, and arranging a double-layer cylindrical screening mechanism 5 inside the supporting frame 3. The straw briquette feed raw material is firstly briquette the outer surface through the raw material chopping mechanism 2 to remove surface mold, dirt and other impurities that affect the feed quality, and then the straw briquette feed is crushed by the raw material crushing mechanism 4, and then the crushed straw briquette feed is finely processed by the rotary dial component 505 and the rotary spray component 506 of the double-layer cylindrical screening mechanism 5, so as to solve the problem of poor screening quality of the existing feed screening device and improve the feed quality.

[0025] In an embodiment of the present invention, the screening shell group 501 includes support legs 5011, a chassis 5012, an outer cylinder 5013, a top plate 5014, an inlet 5015 and a discharge pipe 5016, a plurality of support legs 5011 are arranged at the bottom end of the inner part of the support frame 3, the chassis 5012 is arranged at the top of a plurality of support legs 5011, the spring assembly 503 is arranged at the top of the chassis 5012, the outer cylinder 5013 is arranged at the top of the spring assembly 503, the screen plate assembly 504 is arranged inside the outer cylinder 5013, the top plate 5014 is arranged at the top of the outer cylinder 5013, the inlet 5015 is arranged on the top plate 5014 and is connected to the output end of the raw material crushing mechanism 4, and a plurality of discharge pipes 5016 are arranged on the outer wall of the outer cylinder 5013.

[0026] In an embodiment of the present invention, the sieve plate assembly 504 includes a first sieve plate 5041, a second sieve plate 5042 and a through hole 5043. The first sieve plate 5041 is arranged at the top of the outer cylinder 5013, and the two second sieve plates 5042 are vertically and equidistantly arranged on the inner wall of the outer cylinder 5013. The through hole 5043 is opened at the center of the first sieve plate 5041. The rotary dial assembly 505 is rotatably arranged on the first sieve plate 5041, and the rotary spray assembly 506 is rotatably inserted into the through hole 5043.

[0027] In the present invention, the feed raw materials crushed by the raw material crushing mechanism 4 enter the interior of the screening shell group 501 through the feed inlet 5015, first fall onto the first screen plate 5041, and are finely processed by the rotary dial component 505 and the rotary spray component 506, and then fall into the second screen plate 5042 through the first screen plate 5041 for subsequent screening. The aperture of the first screen plate 5041 in the present invention is larger than the aperture of the second screen plate 5042.

[0028] In an embodiment of the present invention, the rotary dial assembly 505 includes a rotating ring 5051, a paddle blade 5052, a gear rod 5053, a servo motor 5054 and a driving block 5055. The rotating ring 5051 is rotatably arranged at the top of the screen plate assembly 504, the paddle blade 5052 is arranged in a ring shape and at equal intervals on the inner wall of the rotating ring 5051, the gear rod 5053 is arranged in a ring shape and at equal intervals on the top of the rotating ring 5051, the servo motor 5054 is arranged on the outer wall of the screening shell group 501, one end of the driving block 5055 is fixedly connected to the output end of the servo motor 5054, and the other end of the driving block 5055 is meshedly connected to the gear rod 5053.

[0029] In the present invention, the servo motor 5054 is driven to drive the driving block 5055 to rotate, and the driving block 5055 engages with the driving gear rod 5053 to drive the rotating ring 5051 to rotate, and the rotating ring 5051 drives the paddle blade 5052 to rotate. The paddle blade 5052 rotates to sweep out the straw branches, debris and other light waste materials that affect the quality of the feed in the feed raw materials, and cooperates with the blowing of the rotary spray component 506 to prevent these impurities from mixing into the finished feed, thereby ensuring the purity of the feed quality, making the proportion of various nutrients in the feed more scientific and reasonable, and avoiding the problem of uneven distribution of other nutrients due to excessive impurities occupying space, so that livestock can take in more balanced nutrition and promote their healthy growth.

[0030] As another embodiment of the present invention, the rotary spray assembly 506 includes a center gear 5061, a motor 5062, a driving gear 5063, a rotating block 5064, an air pipe 5065 and a hemisphere 5066. The center gear 5061 is rotatably disposed at the top of the sieve plate assembly 504, the motor 5062 is disposed at a position of the sieve plate assembly 504 close to the side of the center gear 5061, one end of the driving gear 5063 is connected to the output end of the motor 5062, and the other end of the driving gear 5063 is meshedly connected to the center gear 5061, the rotating block 5064 is fixedly disposed on the center gear 5061, one end of the air pipe 5065 is rotatably connected to the rotating block 5064, and the other end of the air pipe 5065 is connected to an external air supply mechanism, and the hemisphere 5066 is fixedly disposed at the top of the rotating block 5064.

[0031] In an embodiment of the present invention, an air cavity 5067 is opened inside the rotating block 5064, and curved grooves 5068 are opened in a circular shape with equal intervals on the rotating block 5064. The air pipe 5065, the air cavity 5067 and the curved grooves 5068 are connected to each other, and the curved grooves 5068 are connected to the outer wall of the rotating block 5064 at one end away from the air cavity 5067.

[0032] In the present invention, the driving motor 5062 drives the driving gear 5063 to rotate, the driving gear 5063 engages and drives the central gear 5061 to rotate, the central gear 5061 drives the rotating block 5064 to rotate, the external air supply mechanism supplies air through the air pipe 5065, and injects it into the air cavity 5067 of the rotating block 5064, and the gas is rotated and sprayed out through the curved throwing groove 5068, so that the straw branches, debris and other impurities are blown out toward the inner wall of the outer cylinder 5013, and the impurities are rotated and dialed into the discharge pipe 5016 for discharge in cooperation with the rotary dial component 505, thereby further improving the impurity removal efficiency, ensuring that the impurities in the feed raw materials can be completely removed, and avoiding the residual impurities affecting the subsequent processing and feed quality.

[0033] As another embodiment of the present invention, the raw material chopping mechanism 2 includes a supporting assembly 201, a pressing assembly 202, a dual-purpose chopping assembly 203, an adjusting assembly 204 and a waste cleaning assembly 205. The supporting assembly 201 is arranged on the conveying mechanism 1, the pressing assembly 202 is arranged at the top of the supporting assembly 201, the dual-purpose chopping assembly 203 is hoisted at the output end of the pressing assembly 202, one end of the adjusting assembly 204 is arranged on the supporting assembly 201, and the other end of the adjusting assembly 204 is connected to the dual-purpose chopping assembly 203, and the waste cleaning assembly 205 is arranged at the output end of the conveying mechanism 1.

[0034] The pressing component 202 in the present invention is a cylinder, which drives the dual-purpose chopping component 203 to press down by driving the cylinder to return, thereby changing the vertical height of the dual-purpose chopping component 203. The adjusting component 204 is an electric push rod, which pushes the dual-purpose chopping component 203 to partially adjust or chop, thereby realizing the multiple functions of chopping the top, bottom or outer wall of the feed raw materials. All-round cutting is achieved through only one set of choppers. Compared with traditional equipment with multiple sets of choppers or multiple cutter heads, it not only significantly saves layout space but also avoids replacing multiple cutter heads. In addition, the operation method of a single chopper is simpler, and the operator does not need to switch between different cutter heads, which reduces the possibility of operating errors, further reduces production and operation costs, and ensures the continuity and stability of production.

[0035] In an embodiment of the present invention, the support assembly 201 includes a support frame 2011, a column 2012, a long hole 2013 and a fixed block 2014. The support frame 2011 is arranged on the conveying mechanism 1, the column 2012 is arranged at the top of the support frame 2011, the long hole 2013 is opened on the support frame 2011, the fixed block 2014 is arranged on the support frame 2011 near the long hole 2013, the pressing assembly 202 is arranged on the column 2012, the adjusting assembly 204 is arranged on the fixed block 2014 and passes through the long hole 2013 to be connected to the dual-purpose cutting assembly 203.

[0036] As another embodiment of the present invention, the dual-purpose cutting assembly 203 includes a fixed top ring 2031, a rotating blade 2032, a rotating ring 2033, a fixed bottom ring 2034, a limit rod 2035, a guide groove 2036, a movable hole 2037, an adjustment groove 2038 and an adjustment rod 2039. The fixed top ring 2031 is hoisted at the output end of the pressing assembly 202, the fixed bottom ring 2034 is fixedly connected to the bottom end of the fixed top ring 2031, the rotating ring 2033 is rotatably arranged on the fixed bottom ring 2034, and the rotating blade 20 32 is movably arranged in an annular shape with equal intervals between the rotating ring 2033 and the fixed bottom ring 2034, the limiting rod 2035 is arranged on the rotating blade 2032, the guide grooves 2036 are opened in an annular shape with equal intervals at the bottom end of the rotating ring 2033, the movable holes 2037 are opened in annular shape with equal intervals on the fixed bottom ring 2034, the adjusting grooves 2038 are opened on the outer wall of the fixed bottom ring 2034, one end of the adjusting rod 2039 is fixedly connected to the outer wall of the rotating ring 2033, and the other end of the adjusting rod 2039 is connected to the adjusting assembly 204.

[0037] A first cutting blade 2061 is provided on one side of the rotating blade 2032 , and a second cutting blade 2062 is provided on the bottom end of the rotating blade 2032 .

[0038] In the present invention, when it is necessary to cut the outer wall of the feed raw material, the adjusting rod 2039 is first pushed to move by the electric push rod of the adjusting component 204, and the adjusting rod 2039 drives the rotating ring 2033 to rotate in the fixed bottom ring 2034, and the rotating ring 2033 drives the guide groove 2036 opened thereon to rotate. Since one end of the limit rod 2035 of the rotating blade 2032 is movably inserted in the guide groove 2036, and the other end is movably inserted in the movable hole 2037 of the fixed bottom ring 2034, when the rotating ring 2033 rotates, it drives multiple groups of limit rods 2035 and the rotating blade 2032 to rotate and deviate until the second cutting blade 2062 moves to the cutting point of the outer wall of the feed raw material. At this time, the cylinder stroke of the pressing component 202 is driven again, so that the second cutting blade 2062 performs annular cutting on the outer wall of the feed raw material, and removes part of the attached dirt, thereby reducing the difficulty of subsequent screening and improving the quality of the feed.

[0039] In the present invention, when it is necessary to cut the top and bottom of the feed material, the cylinder stroke of the pressing component 202 is first used to drive the dual-purpose cutting component 203 to vertically descend as a whole until the first cutting blade 2061 descends to the cutting point at the top or bottom of the feed material. At this time, the electric push rod of the adjusting component 204 pushes the adjusting rod 2039 to move, and the adjusting rod 2039 drives the rotating ring 2033 to rotate in the fixed bottom ring 2034, and the rotating ring 2033 drives the guide groove provided thereon. 2036 rotates, because one end of the limit rod 2035 of the rotating blade 2032 is movably inserted in the guide groove 2036, and the other end is movably inserted in the movable hole 2037 of the fixed bottom ring 2034, when the rotating ring 2033 rotates, the multiple groups of limit rods 2035 and the rotating blades 2032 are driven to rotate and deviate, and the multiple groups of rotating blades 2032 and the first cutting blade 2061 are synchronously retracted to achieve cutting of the top and bottom ends of the feed raw materials, thereby pre-treating the attached impurities.

[0040] Working principle: This embodiment provides a double-layer cylindrical screening device for removing impurities from raw materials for feed preparation. When in use, first place the feed raw material, such as straw briquette feed, on the conveying mechanism 1, and the conveying mechanism 1 transports the straw briquette feed to the bottom of the raw material chopping mechanism 2. First, the impurities and dirt at the top and bottom ends of the straw briquette feed raw material are pre-processed by chopping. The cylinder stroke of the pressing component 202 drives the dual-purpose chopping component 203 to descend vertically as a whole until the first chopping blade 2061 descends to the top or bottom cutting point of the feed raw material. At this time, the electric push rod of the adjusting component 204 is used to push the adjusting component 204 to adjust the feed raw material. The rod 2039 moves, and the adjusting rod 2039 drives the rotating ring 2033 to rotate in the fixed bottom ring 2034, and the rotating ring 2033 drives the guide groove 2036 provided thereon to rotate. Since one end of the limiting rod 2035 of the rotating blade 2032 is movably inserted in the guide groove 2036, and the other end is movably inserted in the movable hole 2037 of the fixed bottom ring 2034, when the rotating ring 2033 rotates, it drives the multiple groups of limiting rods 2035 and the rotating blades 2032 to rotate and deviate, and the multiple groups of rotating blades 2032 and the first cutting blade 2061 are synchronously retracted to realize cutting of the top and bottom ends of the feed raw materials; Secondly, the outer wall impurities and dirt of the straw briquette feed raw material are pre-processed by cutting. The electric push rod of the adjustment component 204 pushes the adjustment rod 2039 to move, and the adjustment rod 2039 drives the rotating ring 2033 to rotate in the fixed bottom ring 2034. The rotating ring 2033 drives the guide groove 2036 opened thereon to rotate. Since one end of the limit rod 2035 of the rotating blade 2032 is movably inserted in the guide groove 2036, and the other end is movably inserted in the movable hole 2037 of the fixed bottom ring 2034, when the rotating ring 2033 rotates, it drives multiple groups of limit rods 2035 and the rotating blade 2032 to rotate and deviate until the second cutting blade 2062 moves to the cutting point of the outer wall of the feed raw material. At this time, the cylinder stroke of the pressing component 202 is driven again, so that the second cutting blade 2062 performs annular cutting on the outer wall of the feed raw material to remove the part of the attached dirt; After the pretreatment is completed, the processed feed raw materials are transported to the raw material crushing mechanism 4 through the conveying mechanism 1 for uniform crushing. The feed raw materials crushed by the raw material crushing mechanism 4 enter the screening shell group 501 through the feeding port 5015, and first fall onto the first screen plate 5041. At this time, the servo motor 5054 is driven to drive the driving block 5055 to rotate, and the driving block 5055 engages with the driving gear rod 5053 to drive the rotating ring 5051 to rotate, and the rotating ring 5051 drives the paddle 5052 to rotate. The paddle 5052 rotates to sweep out the straw branches, broken foam and other light waste materials that affect the quality of the feed in the feed raw materials; finally, the driving motor 5062 drives the driving gear 5063 to rotate, and the driving gear 5063 engages and drives the central gear 5061 to rotate, and the central gear 5061 drives the rotating block 5064 to rotate, and the external air supply mechanism supplies air through the air pipe 5065, and injects it into the air cavity 5067 of the rotating block 5064, and the gas is rotated and sprayed out through the curved throwing groove 5068, and the straw branches, debris and other impurities are blown out toward the inner wall of the outer cylinder 5013, and the impurities are rotated and dialed into the discharge pipe 5016 for discharge in cooperation with the rotary dial assembly 505, so as to remove the impurities in the feed to achieve fine processing, and finally pass through the first sieve plate 5041 and fall into the second sieve plate 5042 for subsequent screening.

[0041] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A double-layer drum screening device for removing impurities from feed preparation raw materials, characterized in that: The invention comprises a conveying mechanism (1), wherein a raw material chopping mechanism (2) is provided on the conveying mechanism (1), a support frame (3) is provided on one side of the output end of the conveying mechanism (1), a raw material crushing mechanism (4) is provided on the top of the support frame (3), an input end of the raw material crushing mechanism (4) is provided at the output end of the conveying mechanism (1), a double-layer cylindrical screening mechanism (5) is provided inside the support frame (3), and the input end of the double-layer cylindrical screening mechanism (5) is connected to the output end of the raw material crushing mechanism (4); The double-layer cylindrical screening mechanism (5) comprises a screening shell group (501), a vibration motor (502), a spring assembly (503), a screen plate assembly (504), a rotary dial assembly (505) and a rotary spray assembly (506); the screening shell group (501) is arranged inside the support frame (3); the top end of the screening shell group (501) is connected to the bottom end of the raw material crushing mechanism (4); the vibration motor (502) is arranged at the bottom end of the screening shell group (501); the spring assembly (503) is arranged on the screening shell group (501); the screen plate assembly (504) is arranged inside the screening shell group (501); the rotary dial assembly (505) is rotatably arranged at the top end of the screen plate assembly (504); and the rotary spray assembly (506) is rotatably arranged at the center of the top end of the screen plate assembly (504).

2. A double-layer drum screening device for removing impurities from feed preparation raw materials according to claim 1, characterized in that: The screening shell assembly (501) comprises legs (5011), a bottom plate (5012), an outer cylinder (5013), a top plate (5014), an inlet (5015) and a discharge pipe (5016); a plurality of the legs (5011) are arranged at the bottom end of the support frame (3); the bottom plate (5012) is arranged at the top end of a plurality of the legs (5011); and the spring assembly (503) is arranged at the top end of the bottom plate (5012). The outer cylinder (5013) is arranged at the top of the spring assembly (503), the screen plate assembly (504) is arranged inside the outer cylinder (5013), the top plate (5014) is arranged at the top of the outer cylinder (5013), the feed inlet (5015) is arranged on the top plate (5014) and connected to the output end of the raw material crushing mechanism (4), and a plurality of discharge pipes (5016) are arranged on the outer wall of the outer cylinder (5013).

3. A double-layer drum screening device for removing impurities from feed preparation raw materials according to claim 2, characterized in that: The sieve plate assembly (504) comprises a first sieve plate (5041), a second sieve plate (5042) and a through hole (5043); the first sieve plate (5041) is arranged at the top of the outer cylinder (5013); two second sieve plates (5042) are vertically and equidistantly arranged on the inner wall of the outer cylinder (5013); the through hole (5043) is opened at the center of the first sieve plate (5041); the rotary dial assembly (505) is rotatably arranged on the first sieve plate (5041); and the rotary spray assembly (506) is rotatably inserted into the through hole (5043).

4. A double-layer drum screening device for removing impurities from feed preparation raw materials according to claim 3, characterized in that: The rotary dial assembly (505) comprises a rotating ring (5051), a paddle blade (5052), a gear rod (5053), a servo motor (5054) and a driving block (5055); the rotating ring (5051) is rotatably arranged at the top end of the sieve plate assembly (504); the paddle blades (5052) are arranged on the inner wall of the rotating ring (5051) in a ring shape and at equal intervals; the gear rod (5053) is arranged on the top end of the rotating ring (5051) in a ring shape and at equal intervals; the servo motor (5054) is arranged on the outer wall of the sieving shell assembly (501); one end of the driving block (5055) is fixedly connected to the output end of the servo motor (5054); and the other end of the driving block (5055) is meshingly connected to the gear rod (5053).

5. A double-layer drum screening device for removing impurities from feed preparation raw materials according to claim 4, characterized in that: The rotary spray assembly (506) comprises a central gear (5061), a motor (5062), a driving gear (5063), a rotating block (5064), an air pipe (5065) and a hemispherical body (5066); the central gear (5061) is rotatably disposed at the top of the sieve plate assembly (504); the motor (5062) is disposed at a position on one side of the sieve plate assembly (504) close to the central gear (5061); one end of the driving gear (5063) is connected to the central gear (5061); The driving gear (5063) is connected to the output end of the motor (5062); the other end of the driving gear (5063) is meshedly connected to the central gear (5061); the rotating block (5064) is fixedly arranged on the central gear (5061); one end of the air pipe (5065) is rotatably connected to the rotating block (5064); the other end of the air pipe (5065) is connected to an external air supply mechanism; and the hemisphere (5066) is fixedly arranged on the top of the rotating block (5064).

6. A double-layer drum screening device for removing impurities from feed preparation raw materials according to claim 5, characterized in that: An air cavity (5067) is provided inside the rotating block (5064), and curved grooves (5068) are provided in a circular shape at equal intervals on the rotating block (5064); the air pipe (5065), the air cavity (5067) and the curved grooves (5068) are interconnected, and an end of the curved grooves (5068) away from the air cavity (5067) is connected to the outer wall of the rotating block (5064).

7. A double-layer drum screening device for removing impurities from feed preparation raw materials according to claim 6, characterized in that: The raw material chopping mechanism (2) comprises a support component (201), a pressing component (202), a dual-purpose chopping component (203), an adjusting component (204) and a waste removal component (205); the support component (201) is arranged on the conveying mechanism (1); the pressing component (202) is arranged at the top of the support component (201); the dual-purpose chopping component (203) is hoisted at the output end of the pressing component (202); one end of the adjusting component (204) is arranged on the support component (201); the other end of the adjusting component (204) is connected to the dual-purpose chopping component (203); and the waste removal component (205) is arranged at the output end of the conveying mechanism (1).

8. A double-layer drum screening device for removing impurities from feed preparation raw materials according to claim 7, characterized in that: The support assembly (201) comprises a support frame (2011), a column (2012), a long hole (2013) and a fixing block (2014); the support frame (2011) is arranged on the conveying mechanism (1); the column (2012) is arranged at the top of the support frame (2011); the long hole (2013) is opened on the support frame (2011); the fixing block (2014) is arranged at a position of the support frame (2011) close to the long hole (2013); the pressing assembly (202) is arranged on the column (2012); the adjusting assembly (204) is arranged on the fixing block (2014) and passes through the long hole (2013) to be connected to the dual-purpose cutting assembly (203).

9. A double-layer drum screening device for removing impurities from feed preparation raw materials according to claim 8, characterized in that: The dual-purpose cutting assembly (203) comprises a fixed top ring (2031), rotating blades (2032), a rotating ring (2033), a fixed bottom ring (2034), a limiting rod (2035), a guide groove (2036), a movable hole (2037), an adjusting groove (2038) and an adjusting rod (2039); the fixed top ring (2031) is hoisted at the output end of the pressing assembly (202); the fixed bottom ring (2034) is fixedly connected to the bottom end of the fixed top ring (2031); the rotating ring (2033) is rotatably arranged on the fixed bottom ring (2034); the rotating blades (2032) are movable in a circular shape with equal spacing. The movable bottom ring (2034) is movably arranged between the rotating ring (2033) and the fixed bottom ring (2034); the limiting rod (2035) is arranged on the rotating blade (2032); the guide grooves (2036) are arranged in a ring shape at equal intervals on the bottom end of the rotating ring (2033); the movable holes (2037) are arranged in a ring shape at equal intervals on the fixed bottom ring (2034); the adjusting grooves (2038) are arranged on the outer wall of the fixed bottom ring (2034); one end of the adjusting rod (2039) is fixedly connected to the outer wall of the rotating ring (2033); and the other end of the adjusting rod (2039) is connected to the adjusting assembly (204).

10. A double-layer drum screening device for removing impurities from feed preparation raw materials according to claim 9, characterized in that: A first cutting blade (2061) is provided on one side of the rotating blade (2032), and a second cutting blade (2062) is provided at the bottom end of the rotating blade (2032).

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