Processing equipment for bio-based material

Abstract

The bio-based material processing equipment comprises a base, a second support and a screening cylinder, the second support is arranged on the base, the screening cylinder is rotationally connected to the second support, a plurality of screening holes are formed in the screening cylinder, a feeding opening is formed in one end of the screening cylinder, and a discharging opening is formed in the other end of the screening cylinder. A ventilation end cover with a solid particle blocking effect is arranged at the opposite end of the feeding hole; a connecting rod is arranged in the screening barrel, the inner end of the connecting rod is rotationally connected with a rotating shaft, a flapping plate is arranged on the rotating shaft, rake teeth are distributed on the outer surface of the flapping plate, and the rake teeth are in a cold cone shape, a cylinder shape or a cone shape; according to the straw raw material impurity removal device, granular impurities such as sandy soil attached to the surfaces of straw and stones wrapped among the straw can be exposed, the exposed large-particle gravel is dispersed into small particles capable of penetrating through the screening cylinder under the flapping action of the flapping plate, then complete separation is achieved, and the removal effect of the impurities in the straw raw materials is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bio-based material screening, and in particular to a bio-based material processing device. Background Art

[0002] Bio-based materials refer to a new type of materials made by biological, chemical, physical and other means using renewable biomass, including grains, legumes, straw, bamboo powder, animal fur waste, etc. It mainly includes bioplastics, bio-based platform compounds, biomass functional polymers, functional sugar products, wood-based engineering materials, leather-based service materials and other products, which are green, environmentally friendly, renewable raw materials and biodegradable. Bio-based materials can be divided into bio-fibers, bio-extracts and agricultural waste. Bio-fibers refer to fibers extracted from trees, hemp, coconut shells, bamboo, casein, silk, etc. Bio-extracts refer to materials synthesized using components extracted from biological raw materials as raw materials. Agricultural waste refers to materials made from fruit peels, coffee grounds, shrimp and crab shells, animal fur waste, etc.

[0003] In the process of using straw to produce bio-based materials, the raw materials need to be screened to remove the granular impurities such as sand and stones contained therein. Among them, when screening the straw raw materials, most of them are carried out through a screening mechanism. Common screening methods include flat screens and drum screens. Since the screening capacity of the flat screen is small and the materials are easy to fly out during the screening process, and the drum screen has the advantages of large screening capacity and the materials are not easy to fly out, the drum screen is usually used to screen the straw, that is, the straw and other raw materials are transported to a rotating screening drum for mechanical screening, and the granular impurities such as sand and stones can fall from the sieve holes in the screening drum to remove the granular impurities such as sand and stones in the straw raw materials. However, when the screening drum is rotated for screening, there are a lot of straws entangled and knotted, especially wet straws are easy to stick together, so that a lot of sand will adhere to the surface of the straw, and even some granular impurities such as sand and stones will be wrapped, resulting in a poor removal effect of impurities in the straw raw materials. Summary of the invention

[0004] The embodiment of the present invention provides a processing device for bio-based materials, which can solve the problem in the prior art of using a rotating screening method of a screening drum, where a large amount of straw is entangled and knotted, and especially wet straw is easy to stick together, so that a large amount of sand and soil adheres to the surface of the straw, and even part of the sand and soil and stone and other granular impurities are wrapped, resulting in poor removal effect of impurities in the straw raw material.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a processing equipment for bio-based materials, comprising a base, a second bracket and a screening cylinder, the second bracket is arranged on the base, the screening cylinder is rotatably connected to the second bracket, a plurality of sieve holes are arranged on the screening cylinder, a feed port is opened at one end of the screening cylinder, a ventilation end cover with the function of blocking solid particles is arranged at the opposite end of the feed port, a connecting rod is arranged inside the screening cylinder, the inner end of the connecting rod is rotatably connected to a rotating shaft, a beating plate is arranged on the rotating shaft, the outer surface of the beating plate is provided with rake teeth, a driving component for driving the rotating shaft and the screening cylinder to rotate is arranged on the base, a fan is arranged outside the screening cylinder, and the fan is used to provide wind force to the inside of the screening cylinder for separating granular impurities such as sand and stones from straw.

[0006] Preferably, the drive assembly includes a drive unit, a first driving pulley is provided at the output end of the drive unit, an outer gear ring is provided at the feed port of the screening drum, a spur gear meshing with the outer gear ring is rotatably connected to the second bracket, a first driven pulley is coaxially provided on the spur gear, and a first synchronous belt is transmission-connected between the first driving pulley and the first driven pulley.

[0007] Preferably, the drive assembly also includes a third active pulley coaxially arranged with the first driven pulley, the rotating shaft extends out of the screening cylinder from the feed port, and a third driven pulley is provided at one end of the extended screening cylinder, and a third synchronous belt is connected between the third active pulley and the third driven pulley.

[0008] Preferably, a heating device is provided at the air outlet of the fan.

[0009] Preferably, the rotating shaft is a hollow structure, a plurality of inclined air holes communicating with the interior of the rotating shaft are provided on the rotating shaft, and an air outlet of the fan is sealingly rotatably connected to the rotating shaft.

[0010] Preferably, the flapping plate is a hollow structure, a plurality of air outlet holes are provided on the surface of the flapping plate, and a plurality of air ducts are provided between the flapping plate and the rotating shaft.

[0011] Preferably, a first bracket is provided on the base, and the fan includes a fan casing provided on the first bracket and a plurality of fan blades rotatably connected to the inside of the fan casing, the fan blades are coaxially provided with a first driven bevel gear, and the output end of the driving part is provided with a second active bevel gear, the second active bevel gear is meshed with a second driven bevel gear rotatably connected to the base, and the second driven bevel gear is coaxially provided with a first active bevel gear meshed with the first driven bevel gear.

[0012] Preferably, a plurality of inner convex plates are arranged inside the screening cylinder, and the inner convex plates are arranged along the length direction of the screening cylinder.

[0013] Preferably, an annular slide groove is provided on the second bracket, and an annular sliding block matched with the annular slide groove is provided on the outer surface of the screening cylinder.

[0014] Preferably, a cavity surrounding the outside of the screening cylinder is formed inside the second bracket, the lower end of the cavity is a funnel-shaped structure, and a dust bag is detachably connected to the bottom end of the funnel-shaped structure.

[0015] Compared with the prior art, the present invention cooperates with a base, a second bracket, a screening cylinder, sieve holes, a feed port, a ventilation end cover, a connecting rod, a rotating shaft, a beating plate, rake teeth and a fan in the arrangement. The driving assembly drives the rotating shaft and the screening cylinder to rotate, and the rotating shaft drives the beating plate and the rake teeth to rotate. The wet straw and granular impurities such as sand and stone rotate with the screening cylinder. The fan provides wind force to the inside of the screening cylinder to air-dry and peel off the wet straw that is bonded together, and form loose gaps between the bonded straws. The beating plate beats the wet straw and large particles of sand and stone, and the rake teeth pass through the loose gaps to disperse the wet straw, thereby exposing granular impurities such as sand and stone. The exposed large particles of sand and stone are dispersed into small particles that can pass through the screening cylinder under the beating action of the beating plate, and the small particles are separated through the screening cylinder under the action of wind force and centrifugal force, thereby improving the removal effect of impurities in the straw raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the front and cross-sectional structure of the screening cylinder of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the flapping board of the present invention;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating shaft of the present invention;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the beating board of the present invention;

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of the fan of the present invention;

[0022] Figure 7 This is a schematic diagram of the right side sectional structure of the screening cylinder of the present invention;

[0023] Figure 8 This is a schematic diagram of the rear view structure of the turntable of the present invention;

[0024] Fig. 9 It is a schematic diagram of the side sectional structure of the feed box of the present invention.

[0025] In the figure: 1, base; 2, first bracket; 3, screening cylinder; 4, sieve hole; 5, feed port; 6, fan; 7, fan housing; 8, fan blade; 9, second bracket; 10, end cover; 11, outer gear ring; 12, spur gear; 13, first driven pulley; 14, driving part; 15, first driving pulley; 16, first synchronous belt; 17, first driven bevel gear; 18, second driving bevel gear; 19, second driven bevel gear; 20, first driving bevel gear; 21, feed box; 22, guide pipe; 23, raw material inlet; 24 , vertical avoidance groove; 25, slider; 26, cutting knife; 27, connecting rod; 28, turntable; 29, second driven pulley; 30, second driving pulley; 31, second synchronous belt; 32, inner convex plate; 33, rake teeth; 34, annular slide groove; 35, annular slider; 36, cavity; 37, dust bag; 38, connecting rod; 39, rotating shaft; 40, third driving pulley; 41, third driven pulley; 42, third synchronous belt; 43, heating device; 44, flapping plate; 45, inclined air hole; 46, air duct; 47, air outlet. DETAILED DESCRIPTION

[0026] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figure 1-Figure 9 As shown, a processing equipment for bio-based materials includes a base 1, a second bracket 9 and a screening drum 3, the second bracket 9 is arranged on the base 1, the screening drum 3 is rotatably connected to the second bracket 9, a plurality of sieve holes 4 are arranged on the screening drum 3, a feed port 5 is opened at one end of the screening drum 3, a ventilation end cover 10 with the function of blocking solid particles is arranged at the opposite end of the feed port 5, a connecting rod 38 is arranged inside the screening drum 3, a rotating shaft 39 is rotatably connected to the inner end of the connecting rod 38, a beating plate 44 is arranged on the rotating shaft 39, and rake teeth 33 are arranged on the outer surface of the beating plate 44, a driving component for driving the rotating shaft 39 and the screening drum 3 to rotate is arranged on the base 1, and a fan 6 is arranged outside the screening drum 3, and the fan 6 is used to provide wind force to the inside of the screening drum 3 for separating granular impurities such as sand and stones from straw.

[0028] When in use, the driving assembly drives the rotating shaft 39 and the screening drum 3 to rotate, and the rotating shaft 39 drives the flapping plate 44 and the rake teeth 33 to rotate, and the wet straw and granular impurities such as sand and stones rotate with the screening drum 3, and the fan 6 provides wind force to the inside of the screening drum 3 to air-dry and peel off the wet straw that is bonded together, and form loose gaps between the bonded straws. The flapping plate 44 flaps the wet straw and large particles of sand and gravel, and the rake teeth 33 pass through the loose gaps to disperse the wet straw, thereby exposing granular impurities such as sand and stones. The exposed large particles of sand and gravel are dispersed into small particles that can pass through the screening drum under the flapping action of the flapping plate 44, and the small particles are separated through the screening drum 3 under the action of wind force and centrifugal force, thereby improving the removal effect of impurities in the straw raw material.

[0029] In order to improve the removal effect of particulate impurities in straw raw materials, preferably, the driving component includes a driving part 14, the driving part 14 is preferably a motor, and a first driving pulley 15 is provided at the output end of the driving part 14, an outer gear ring 11 is provided at the feed port 5 of the screening drum 3, and a spur gear 12 meshing with the outer gear ring 11 is rotatably connected to the second bracket 9, and a first driven pulley 13 is coaxially provided with the spur gear 12, and a first synchronous belt 16 is transmission-connected between the first driving pulley 15 and the first driven pulley 13.

[0030] The driving assembly also includes a third driving pulley 40 coaxially arranged with the first driven pulley 13. The rotating shaft 39 extends out of the screening drum 3 from the feed port 5, and a third driven pulley 41 is provided at one end extending out of the screening drum 3. A third synchronous belt 42 is connected between the third driving pulley 40 and the third driven pulley 41.

[0031] When in use, the motor drives the first active pulley 15 to rotate, the first active pulley 15 drives the spur gear 12 and the third active pulley 40 to rotate through the first driven pulley 13, the spur gear 12 drives the screening drum 3 to rotate through the outer gear ring 11, the third active pulley 40 drives the third driven pulley 41 to rotate through the third synchronous belt 42, the third driven pulley 41 drives the beating plate 44 to rotate through the rotating shaft 39, and the rotation direction of the screening drum 3 is opposite to that of the beating plate 44, thereby increasing the speed difference, providing a greater beating force for the straw and stones, and facilitating the dispersion of the straw and large-particle stones.

[0032] In order to achieve the purpose of improving the removal effect of particulate impurities in the straw raw material, preferably, a heating device 43 is provided at the air outlet of the fan 6, and the heating device 43 is an infrared heater or an electric heating network. After the heating device 43 heats the air, the fan 6 blows the heated air into the interior of the screening cylinder 3, which is conducive to the rapid drying of the wet straw, so that the straw that is stuck together is dried and peeled off.

[0033] In order to achieve the purpose of improving the removal effect of particulate impurities in the straw raw material, preferably, the rotating shaft 39 is a hollow structure, and a plurality of inclined air holes 45 connected to the interior of the rotating shaft 39 are opened on the rotating shaft 39. The air outlet of the fan 6 is sealed and rotatably connected to the rotating shaft 39, and the air outlet of the inclined air holes 45 is inclined toward the ventilation end cover 10. The hot air blown out by the fan 6 is blown out through the inclined air holes 45 on the rotating shaft 39. The wind force is evenly distributed inside, which is beneficial to increasing the drying speed of the wet straw, and the straw that becomes lighter after drying is blown toward the end cover 10, which is beneficial to the subsequent discharge.

[0034] In order to achieve the purpose of improving the removal effect of particulate impurities in the straw raw material, preferably, the flapping board 44 is a hollow structure, a plurality of air outlet holes 47 are opened on the surface of the flapping board 44, and a plurality of air ducts 46 are opened between the flapping board 44 and the rotating shaft 39. The air outlet holes 47 can provide tangential wind force to blow away the straw attached to the surface of the flapping board 44 to prevent the straw from being entangled or attached to the flapping board 44, thereby maintaining the working performance of the flapping board 44.

[0035] In order to achieve the purpose of improving the removal effect of particulate impurities in the straw raw material, preferably, a first bracket 2 is provided on the base 1, and the fan 6 includes a fan housing 7 arranged on the first bracket 2 and a plurality of fan blades 8 rotatably connected to the inside of the fan housing 7, and the fan blades 8 are coaxially provided with a first driven bevel gear 17, and the output end of the driving part 14 is provided with a second active bevel gear 18, the second active bevel gear 18 is meshed with a second driven bevel gear 19 rotatably connected to the base 1, and the second driven bevel gear 19 is coaxially provided with a first active bevel gear 20 meshed with the first driven bevel gear 17.

[0036] During use, the motor drives the second active bevel gear 18 to rotate at the same time, the second active bevel gear 18 drives the first active bevel gear 20 to rotate through the second driven bevel gear 19, the first active bevel gear 20 drives the fan blades 8 to rotate through the first driven bevel gear 17, and the rotating fan blades 8 generate wind force in the fan casing 7 that blows toward the inside of the screening cylinder 3, thereby drying and peeling the wet straw.

[0037] In order to achieve the purpose of improving the removal effect of granular impurities in straw raw materials, preferably, a plurality of inner convex plates 32 are arranged inside the screening cylinder 3, and the inner convex plates 32 are arranged along the length direction of the screening cylinder 3. When the screening cylinder 3 is rotating, the inner convex plates 32 drive large particles of sand and soil to rise, and after rising to a high point, they fall under the action of gravity, and collide with the rotating beating plate 44 during the falling process, and are dispersed into small particles of sand and gravel that can pass through the sieve holes 4, and then are separated through the sieve holes 4 under the action of centrifugal force, thereby improving the screening effect of the straw raw materials.

[0038] Preferably, an annular groove 34 is provided on the second bracket 9, and an annular sliding block 35 matched with the annular groove 34 is provided on the outer surface of the screening cylinder 3. A cavity 36 surrounding the outside of the screening cylinder 3 is opened inside the second bracket 9, and the lower end of the cavity 36 is a funnel-shaped structure, and a dust bag 37 is detachably connected to the bottom end of the funnel-shaped structure. Particulate impurities such as dust, sand, and stones generated during the screening process are collected in the dust bag 37, which is convenient for subsequent treatment of waste, reduces dust pollution, and protects the environment.

[0039] In order to achieve the purpose of improving the removal effect of particulate impurities in the straw raw material, preferably, a feed box 21 is provided on the first bracket 2, and a guide pipe 22 is provided on the feed box 21, which extends from the feed port 5 into the interior of the screening cylinder 3, and a raw material inlet 23 opposite to the guide pipe 22 is opened on the feed box 21, and vertical avoidance grooves 24 are opened on two opposite side walls of the feed box 21, and a slider 25 is slidably connected inside the vertical avoidance groove 24, and a cutting knife 26 is provided at the lower end of the slider 25, and a connecting rod 27 is hinged on the slider 25, and a turntable 28 is rotatably connected to the first bracket 2, one end of the connecting rod 27 is eccentrically connected to the turntable 28, and a second driven pulley 29 is coaxially provided on the turntable 28, and a second driving pulley 30 is coaxially provided on the first driven bevel gear 17, and a second synchronous belt 31 is transmission-connected between the second driving pulley 30 and the second driven pulley 29.

[0040] During use, the first driven bevel gear 17 drives the second active pulley 30 to rotate, the second active pulley 30 drives the second driven pulley 29 to rotate through the second synchronous belt 31, and the second driven pulley 29 drives the turntable 28 to rotate. Under the guiding effect of the vertical avoidance groove 24 on the slider 25, the turntable 28 drives the cutting knife 26 to perform reciprocating lifting and lowering motion through the connecting rod 27, and cuts the straw raw material entering the feed box 21 into segments, so that after the straw raw material enters the screening cylinder 3, it is convenient to separate the wrapped granular impurities such as sand and stones, thereby improving the screening effect of the straw raw material.

[0041] Compared with the prior art, the present invention is provided with a base 1, a second bracket 9, a screening cylinder 3, a sieve hole 4, a feed port 5, a ventilation end cover 10, a connecting rod 38, a rotating shaft 39, a beating plate 44, rake teeth 33 and a fan 6. The driving assembly drives the rotating shaft 39 and the screening cylinder 3 to rotate, and the rotating shaft 39 drives the beating plate 44 and the rake teeth 33 to rotate. The wet straw and granular impurities such as sand and stone rotate with the screening cylinder 3. The fan 6 provides wind force to the inside of the screening cylinder 3 to separate the wet straw stuck together. The straw is air-dried and peeled off to form loose gaps between the bonded straws. The beating plate 44 beats the wet straw and large particles of sand and gravel. The rake teeth 33 pass through the loose gaps to disperse the wet straw, thereby exposing granular impurities such as sand and stone. The exposed large particles of sand and gravel are dispersed into small particles that can pass through the screening cylinder under the beating action of the beating plate 44. The small particles are separated through the screening cylinder 3 under the action of wind and centrifugal force, thereby improving the removal effect of impurities in the straw raw material.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bio-based material processing device, comprising a base (1), a second support (9) and a screening cylinder (3), wherein the second support (9) is arranged on the base (1), and characterized in that: The screening cylinder (3) is rotatably connected to the second bracket (9), and a plurality of sieve holes (4) are arranged on the screening cylinder (3). A feed port (5) is provided at one end of the screening cylinder (3), and a ventilation end cover (10) having the function of blocking solid particles is provided at the opposite end of the feed port (5). A connecting rod (38) is arranged inside the screening cylinder (3), and a rotating shaft (39) is rotatably connected to the inner end of the connecting rod (38). A beating plate (44) is arranged on the rotating shaft (39), and rake teeth (33) are arranged on the outer surface of the beating plate (44). A driving component for driving the rotating shaft (39) and the screening cylinder (3) to rotate is arranged on the base (1), and a fan (6) is arranged outside the screening cylinder (3), and the fan (6) is used to provide wind force to the inside of the screening cylinder (3) for separating granular impurities such as sand and stones from straw.

2. The bio-based material processing equipment according to claim 1, characterized in that: The driving assembly comprises a driving part (14), the output end of the driving part (14) is provided with a first driving pulley (15), the feed port (5) of the screening drum (3) is provided with an outer gear ring (11), the second bracket (9) is rotatably connected with a spur gear (12) meshing with the outer gear ring (11), the spur gear (12) is coaxially provided with a first driven pulley (13), and a first synchronous belt (16) is transmission-connected between the first driving pulley (15) and the first driven pulley (13).

3. The bio-based material processing equipment according to claim 2, characterized in that: The driving assembly further comprises a third driving pulley (40) coaxially arranged with the first driven pulley (13); the rotating shaft (39) extends out of the screening drum (3) from the feed port (5); and a third driven pulley (41) is arranged at one end of the extended screening drum (3); and a third synchronous belt (42) is transmission-connected between the third driving pulley (40) and the third driven pulley (41).

4. The bio-based material processing equipment according to claim 2, characterized in that: A heating device (43) is provided at the air outlet of the fan (6).

5. The bio-based material processing equipment according to claim 3, characterized in that: The rotating shaft (39) is a hollow structure, and is provided with a plurality of inclined air holes (45) connected to the interior of the rotating shaft (39). The air outlet of the fan (6) is sealed and rotatably connected to the rotating shaft (39).

6. The bio-based material processing equipment according to claim 4, characterized in that: The flapping plate (44) is a hollow structure, a plurality of air outlet holes (47) are provided on the surface of the flapping plate (44), and a plurality of air ducts (46) are provided between the flapping plate (44) and the rotating shaft (39).

7. The bio-based material processing equipment according to claim 6, characterized in that: The base (1) is provided with a first bracket (2), the fan (6) comprises a fan housing (7) provided on the first bracket (2) and a plurality of fan blades (8) rotatably connected to the inside of the fan housing (7), the fan blades (8) being coaxially provided with a first driven bevel gear (17), the output end of the driving unit (14) being provided with a second active bevel gear (18), the second active bevel gear (18) being meshed with a second driven bevel gear (19) rotatably connected to the base (1), and the second driven bevel gear (19) being coaxially provided with a first active bevel gear (20) meshed with the first driven bevel gear (17).

8. The bio-based material processing equipment according to claim 7, characterized in that: A plurality of inner convex plates (32) are arranged inside the screening cylinder (3), and the inner convex plates (32) are arranged along the length direction of the screening cylinder (3).

9. The bio-based material processing equipment according to claim 8, characterized in that: The second bracket (9) is provided with an annular sliding groove (34), and the outer surface of the screening cylinder (3) is provided with an annular sliding block (35) matched with the annular sliding groove (34).

10. The bio-based material processing equipment according to claim 9, characterized in that: The second bracket (9) has a cavity (36) formed inside and surrounding the outside of the screening cylinder (3). The lower end of the cavity (36) is a funnel-shaped structure, and a dust bag (37) is detachably connected to the bottom end of the funnel-shaped structure.

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