Biomass particle granulation equipment

Abstract

The invention discloses biomass particle granulating equipment, and relates to the technical field of granulating processing.The granulating equipment comprises an outer frame, a granulating machine shell assembly, a lower roller part, a granulating screen drum part and a plurality of granulating cutting assemblys.The granulating machine shell assembly comprises a granulating hopper shell, a lower conveying channel and a rotary driving part; a spiral pushing assembly is further arranged in the granulation hopper shell, and the spiral pushing assembly comprises a conveying main shaft and a conveying spiral blade; one end of the granulating and cutting assembly extends to the granulating screen drum part and is in contact with the side wall of the granulating screen drum part in a tangent manner, and the other end of the granulating and cutting assembly is connected with the edge of the top of the lower drum part. The biomass granulating device is simple in structure, biomass is extruded in the rotating process and is extruded and cut through the granulating holes, and formed granules have certain movement impulse, can rotationally roll on the rolling disc and are gradually impacted and abraded, so that the granules are more uniform and firmer, the granulation is uniform, and the operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of granulation processing, in particular to a biomass granulation device. Background Art

[0002] As a renewable and environmentally friendly energy source, biomass fuel has been increasingly used in industrial and civilian fields. However, due to the slow development of technology for producing biomass fuel using crop straw, the development of downstream energy-consuming industry technology has been hindered. Most of the straw and other raw materials are still used in agriculture or burned, which not only pollutes the environment but also wastes resources. Only a small amount of agricultural waste such as straw is used to make biomass fuel, and due to technical problems, large-scale mass production has not been formed. With the rapid advancement of industrialization, energy sources such as coal power are becoming increasingly tight. Biomass pellet fuel made from biomass materials such as crop straw and grass, which are crushed and extruded, has attracted people's attention, and various places have successively launched a variety of biomass pellet machines.

[0003] The existing biomass pelletizing equipment places the biomass in a push barrel, which is squeezed by a push plate so that the biomass is squeezed out from the discharge hole at the front end of the push barrel in the form of thin and long strips, and then cut into particles of various sizes by a cutting device; however, the particles produced by this pelletizing method are square in shape, and the square particles are prone to cracking and crushing at the corners, so they need to be rolled on a rolling disc to wear the corners to form round particles, which is relatively cumbersome to operate. Summary of the invention

[0004] The object of the present invention is to provide a biomass pelletizing device to solve the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A biomass pelletizing device comprises an outer frame, a pelletizing shell assembly, a lower drum part, a pelletizing screen cylinder part and a plurality of pelletizing cutting components, wherein the lower drum part is fixed on the outer frame and the bottom of the lower drum part is an inverted cone structure, a rolling disk is arranged inside the lower drum part and the edge of the rolling disk has a plurality of lower drop openings, the pelletizing screen cylinder part is installed at the center of the rolling disk, the pelletizing shell assembly is located at the lower side of the pelletizing screen cylinder part and the pelletizing shell assembly comprises a pelletizing bucket shell, a lower conveying channel and a rotating drive part, an outer ring frame is arranged on the outer side wall of the pelletizing bucket shell part for rotation therewith and the outer ring frame is connected to the top of the outer frame, the rotating drive part is connected to the pelletizing bucket shell part and the rotating drive part is used to drive the pelletizing bucket shell part to rotate, the lower The conveying channel is arranged at the bottom of the granulation bucket shell and the bottom of the lower conveying channel is connected to the top of the granulation screen cylinder. A spiral pushing assembly is also arranged inside the granulation bucket shell, and the spiral pushing assembly includes a conveying main shaft and a conveying spiral blade. The top of the conveying main shaft is fixedly connected to the outer frame and the top of the conveying main shaft is provided with a pushing motor. The bottom of the conveying main shaft passes through the lower conveying channel and extends to the inside of the granulation screen cylinder. The part of the conveying main shaft extending into the lower conveying channel and the granulation screen cylinder is provided with a conveying spiral blade; a plurality of granulation cutting assemblies are circumferentially distributed inside the lower drum part, one end of the granulation cutting assembly extends to the granulation screen cylinder part and contacts with its side wall in a tangential manner, and the other end of the granulation cutting assembly is connected to the top edge of the lower drum part.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional solution: a plurality of ring strips are arranged on the upper surface of the rolling disk, and the plurality of ring strips are all cocentric with the rolling disk, and the cross section of the ring strip is semicircular.

[0007] In an optional solution: the rotary drive unit includes a granulating rotary motor and an outer gear ring arranged on the outer wall of the granulating bucket shell, the granulating rotary motor is arranged on the outer ring frame and a gear unit is arranged at the output end of the granulating rotary motor, and the gear unit is meshed with the outer gear ring.

[0008] In an optional scheme: an inner ring portion is also provided inside the granulation bucket shell, and the lower end surface of the inner ring portion has a circular rack, a material supporting mesh plate located at the lower side of the inner ring portion is also provided inside the granulation bucket shell, a rolling component is provided on the conveying main shaft, and the rolling component includes a connecting sleeve and a plurality of rolling shafts, the connecting sleeve is fixedly sleeved on the conveying main shaft, and the plurality of rolling shafts are circumferentially distributed on the outside of the connecting sleeve, one end of the rolling shaft is rotatably connected to the connecting sleeve and the other end extends to the lower side of the inner ring portion, the end of the connecting sleeve at the lower side of the inner ring portion is provided with a self-rotating gear meshing with the circular rack, and a crushing roller portion is provided on the connecting sleeve.

[0009] In an optional scheme: the granulation screen cylinder part includes a mesh cylinder part, a bottom plate part and an upper sleeve, the bottom plate part is fixed at the bottom of the mesh cylinder part and the bottom plate part is detachably connected to the center part of the rolling disk, the upper sleeve is arranged at the top of the mesh cylinder part and the inner wall diameter of the upper sleeve is the same as the outer diameter of the lower conveying channel, a plurality of connecting bayonet holes are arranged on the top side wall of the upper sleeve, a fixing ring is arranged on the outer wall of the lower conveying channel and a plurality of protrusions that can be correspondingly engaged with the connecting bayonet holes are arranged on the fixing ring; the outer ring frame is connected to the top of the outer frame by at least one adjusting cylinder part, and the conveying main shaft is connected to the output end of the pushing motor by a telescopic coupling.

[0010] In an optional scheme: the granulation cutting assembly includes a cutting rod arm and a cutting plate, one end of the cutting rod arm is connected to the top edge of the lower drum part and the other end of the cutting rod arm points to the granulation screen cylinder part, the cutting plate is arranged on the cutting rod arm, and the cutting plate extends away from the end of the cutting rod arm to the side of the granulation screen cylinder part and is in tangential contact with the side wall thereof; the cutting rod arm is provided with a plurality of wear strips extending downward.

[0011] In an optional scheme: a switching adjustment component is provided at the top edge of the lower drum part and the switching adjustment component includes a fixed ring and a rotating ring, the fixed ring is fixed on the top edge of the lower drum part and a plurality of mounting rod shafts are provided on the fixed ring, the mounting rod shafts are rotatably connected to the ends of the cutting rod arms in the plurality of granulating and cutting components away from the granulating screen cylinder part, a tail rod frame is also provided at the end of the cutting rod arm, the rotating ring is rotatably arranged on the outside of the fixed ring and a plurality of toggle columns are provided on the rotating ring, which respectively pass through the corresponding tail rod frames, a limiting block and a handle are also provided on the outer wall of the rotating ring, a sliding rod member is provided on the outer frame and a U-shaped blocking portion is slidably provided on the sliding rod member, and the limiting block can be stuck inside the U-shaped blocking portion.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the conveying spiral blade pushes the biomass inside the granulation bucket shell into the granulation screen cylinder part in a spiral extrusion manner, and the biomass in the granulation screen cylinder part passes through the granulation holes on the outer wall of the granulation screen cylinder part in a slender state under extrusion; because the granulation screen cylinder part always keeps a rotating state, the end of the granulation cutting assembly in contact with the outer wall of the granulation screen cylinder part can cut off the biomass discharged through the granulation hole to form a granular state; 2. After being discharged from the granulation hole, the biomass in the granular state of the present invention falls on the rolling plate due to inertia. The rolling plate rotates with the granulation screen cylinder and the rolling plate drives the granular biomass to roll toward the inner wall of the lower drum through centrifugal force. The granular biomass rotates on the rolling plate and gradually collides and wears, thereby making the particles more uniform and firm. 3. The present invention has a simple structure. The biomass is squeezed and cut from the granulation hole during the rotation process. The formed particles have a certain movement impulse and can be rotated on the rolling disk and gradually collide and wear, so that the particles are more uniform and firm, the granulation is uniform and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the granulation equipment in one embodiment of the present invention.

[0014] Figure 2 It is a schematic diagram of the structure of a granulator housing assembly in one embodiment of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the granulation screen cylinder part in one embodiment of the present invention.

[0016] Figure 4 The figure is a schematic diagram of the structure of a spiral pushing assembly in one embodiment of the present invention.

[0017] Figure 5 It is a schematic diagram of the structure of a granulation and cutting component in one embodiment of the present invention.

[0018] Figure 6 for Figure 1 Enlarged structural diagram at A in the middle.

[0019] Reference numerals: outer frame 100, slide bar 110, U-shaped blocking portion 120, granulator housing assembly 200, granulator bucket housing 210, lower conveying channel 220, outer ring frame 230, adjusting cylinder portion 240, outer gear ring 250, granulation rotating motor 260, gear portion 261, supporting mesh plate 270, inner ring portion 280, circular rack 281, fixing ring 290, protrusion 291, spiral push assembly 300, conveying main shaft 310, conveying spiral blade 320, connecting sleeve 330, roller shaft 34 0, crushing roller part 350, self-rotating gear 360, lower drum part 400, granulation screen cylinder part 500, mesh cylinder part 510, bottom plate part 520, upper sleeve 530, connecting bayonet 540, rolling plate 600, lower drop port 610, ring bar 620, granulation cutting assembly 700, cutting rod arm 710, cutting plate 720, wear strip 730, tail rod frame 740, switching adjustment assembly 800, fixing ring 810, rotating ring 820, limiting block 830, toggle column 840, mounting rod shaft 850, handle 860. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; in the drawings or descriptions, similar or identical parts use the same reference numerals, and in practical applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0021] The left, right, up, and down positions of the various components given in the drawings are only one arrangement method, and the specific positions are set according to specific needs.

[0022] In one embodiment, Figure 1-Figure 4 As shown, a biomass pelletizing device includes an outer frame 100, a pelletizing shell assembly 200, a lower drum part 400, a pelletizing screen cylinder part 500 and a plurality of pelletizing cutting components 700, wherein the lower drum part 400 is fixed on the outer frame 100 and the bottom of the lower drum part 400 is an inverted cone structure, a rolling plate 600 is arranged inside the lower drum part 400 and the edge of the rolling plate 600 has a plurality of lower drop openings 610, and the pelletizing screen cylinder part 500 is installed on the rolling plate 600 center position, the granulator shell assembly 200 is located at the lower side of the granulator screen cylinder part 500 and the granulator shell assembly 200 includes a granulator bucket shell 210, a lower conveying channel 220 and a rotary drive unit, the outer side wall of the granulator bucket shell 210 is provided with an outer ring frame 230 that rotates with it, and the outer ring frame 230 is connected to the top of the outer frame 100, the rotary drive unit is connected to the granulator bucket shell 210 and the rotary drive unit is used to drive the granulator bucket shell 210 to rotate, the lower conveying channel 220 is provided at the bottom of the granulator bucket shell 210 and the bottom of the lower conveying channel 220 is connected to the top of the granulator screen cylinder part 500, the granulator bucket shell 210 is also provided with a spiral pushing assembly 300, the spiral pushing assembly 300 includes a conveying spindle 310 and a conveying spiral blade 320, the top of the conveying spindle 310 is fixedly connected to the outer frame 100 and the top of the conveying spindle 310 is provided with a pushing motor, and the bottom of the conveying spindle 310 passes through the lower conveying channel 220 and extends to the interior of the granulation screen cylinder portion 500, and the conveying main shaft 310 extending into the lower conveying channel 220 and the granulation screen cylinder portion 500 is provided with a conveying spiral blade 320; a plurality of granulation and cutting components 700 are circumferentially distributed inside the lower drum portion 400, one end of the granulation and cutting component 700 extends to the granulation screen cylinder portion 500 and contacts its side wall in a tangential manner, and the other end of the granulation and cutting component 700 is connected to the top edge of the lower drum portion 400.

[0023] In the embodiment of the present invention, before the granulation work starts, the biomass is first placed inside the granulation bucket shell 210, and the rotating drive unit on the outer ring frame 230 starts to work and drives the granulation bucket shell 210 to rotate. The rotating granulation bucket shell 210 drives the granulation screen cylinder part 500 and the rolling plate 600 to rotate through the lower conveying channel 220. The lower conveying channel 220 and the granulation screen cylinder part 500 rotate relative to the conveying main shaft 310 and the conveying spiral blade 320, and the pusher motor drives the conveying main shaft 310 to rotate. The rotation direction of the conveying main shaft 310 is opposite to the rotation direction of the granulator shell assembly 200. The conveying spiral blade 320 pushes the biomass inside the granulation bucket shell 210 to the inside of the granulation screen cylinder part 500 in a spiral extrusion manner. The biomass in the granulation screen cylinder part 500 is squeezed in an elongated shape. The granulated biomass passes through the granulation holes on the outer wall of the granulation screen cylinder 500; since the granulation screen cylinder 500 always keeps a rotating state, the end of the granulation cutting assembly 700 in contact with the outer wall of the granulation screen cylinder 500 can cut off the biomass discharged through the granulation holes to form a granular state; after the granular biomass is discharged through the granulation holes, it will fall on the rolling plate 600 due to inertia. The rolling plate 600 rotates with the granulation screen cylinder 500 and the rolling plate 600 drives the granular biomass to roll toward the inner wall of the lower drum part 400 through the centrifugal force. The granular biomass rotates on the rolling plate 600 and gradually collides and wears, thereby making the particles more uniform and firm; finally, the granular biomass falls to the bottom of the lower drum part 400 through the drop port 610 and is discharged from the bottom of the lower drum part 400.

[0024] In one embodiment, Figure 1-Figure 3 As shown, a plurality of ring strips 620 are arranged on the upper surface of the rolling disk 600 and the plurality of ring strips 620 are all cocentric with the rolling disk 600, and the cross-section of the ring strips 620 is semicircular; in the embodiment of the present invention, the arrangement of the ring strips 620 can reduce the collision and wear of the granular biomass when it moves toward the edge of the rolling disk 600, making the granular material smoother.

[0025] In one embodiment, Figure 1-Figure 3 As shown, the rotary drive unit includes a granulation rotary motor 260 and an outer gear ring 250 arranged on the outer wall of the granulation bucket shell 210, the granulation rotary motor 260 is arranged on the outer ring frame 230 and the output end of the granulation rotary motor 260 is provided with a gear portion 261, and the gear portion 261 is meshed with the outer gear ring 250; in this embodiment of the present invention, the granulation rotary motor 260 rotates the granulation bucket shell 210 through the meshing of the gear portion 261 with the outer gear ring 250, and the rotating granulation bucket shell 210 can rotate the biomass therein, thereby increasing the mutual collision and adhesion between the biomass.

[0026] In one embodiment, Figure 1-Figure 4As shown, the granulating bucket shell 210 is also provided with an inner ring portion 280, and the lower end surface of the inner ring portion 280 has a circular rack 281, and the granulating bucket shell 210 is also provided with a supporting mesh plate 270 located at the lower side of the inner ring portion 280, and the conveying main shaft 310 is provided with a rolling component, and the rolling component includes a connecting sleeve 330 and a plurality of rolling shafts 340, and the connecting sleeve 330 is fixedly sleeved on the conveying main shaft 310 and the plurality of rolling shafts 340 are circumferentially distributed on the outer side of the connecting sleeve 330, one end of the rolling shaft 340 is rotatably connected to the connecting sleeve 330 and the other end extends to the lower side of the inner ring portion 280, and the end of the connecting sleeve 330 at the lower side of the inner ring portion 280 is provided with a circular rack. The self-rotating gear 360 meshing with the rack 281 and the connecting sleeve 330 are provided with a crushing roller portion 350; in the embodiment of the present invention, the biomass in the granulation bucket shell 210 is supported by the supporting mesh plate 270, and the conveying main shaft 310 and the granulation bucket shell 210 are both in a rotating state and the rotation directions are opposite. At this time, the rotating conveying main shaft 310 drives the rolling shaft 340 and the crushing roller portion 350 to rotate. Due to the meshing of the self-rotating gear 360 and the circular rack 281, the crushing roller portion 350 can rotate while rotating with the conveying main shaft 310, and then the crushing roller portion 350 rolls and crushes the biomass on the supporting mesh plate 270, and the biomass contacts and adheres to each other.

[0027] In one embodiment, Figure 1-Figure 4As shown, the granulation screen cylinder portion 500 includes a mesh cylinder portion 510, a bottom plate 520 and an upper sleeve 530, wherein the bottom plate 520 is fixed to the bottom of the mesh cylinder portion 510 and the bottom plate 520 is detachably connected to the central portion of the rolling plate 600, the upper sleeve 530 is arranged at the top of the mesh cylinder portion 510 and the inner wall diameter of the upper sleeve 530 is the same as the outer diameter of the lower conveying channel 220, a plurality of connecting bayonet holes 540 are arranged on the top side wall of the upper sleeve 530, a fixing ring 290 is arranged on the outer wall of the lower conveying channel 220 and a plurality of protrusions 291 that can be correspondingly inserted into the connecting bayonet holes 540 are arranged on the fixing ring 290; the outer ring frame 230 is connected to the top of the outer frame 100 by at least one adjusting cylinder portion 240, and the conveying spindle 310 is connected to the output end of the push motor by at least one adjusting cylinder portion 240. The granulating bucket shell 210 and the lower conveying channel 220 are connected by a telescopic coupling; in the embodiment of the present invention, the adjusting cylinder part 240 can adjust the height position of the granulating bucket shell 210 and the lower conveying channel 220 by telescoping, so that the protrusion 291 can be inserted into the connection bayonet 540 or the protrusion 291 can be disengaged from the connection bayonet 540. When the protrusion 291 is inserted into the connection bayonet 540, the rotating granulating bucket shell 210 and the lower conveying channel 220 can drive the upper sleeve 530 and the net cylinder part 510 to rotate, and the net cylinder part 510 drives the rolling plate 600 to rotate through the bottom plate 520; when the protrusion 291 is disengaged from the connection bayonet 540, the granulating screen cylinder part 500 can be disassembled and replaced by releasing the connection between the bottom plate 520 and the rolling plate 600, so as to form granular biomass of different sizes; In one embodiment, Figure 1-Figure 6 As shown, the granulation cutting assembly 700 includes a cutting lever arm 710 and a cutting plate 720, one end of the cutting lever arm 710 is connected to the top edge of the lower drum part 400 and the other end of the cutting lever arm 710 points to the granulation screen cylinder part 500, the cutting plate 720 is arranged on the cutting lever arm 710, and the cutting plate 720 extends away from the end of the cutting lever arm 710 to the side of the granulation screen cylinder part 500 and is in tangential contact with the side wall thereof; the cutting lever arm 710 is provided with a plurality of wear strips 730 extending downward; in the embodiment of the present invention, the cutting plate 720 is attached to the outer wall of the mesh cylinder part 510, and the biomass extruded through the granulation holes on the bottom plate part 520 is cut into granules by the cutting plate 720, and the granular biomass will rub and collide with the plurality of wear strips 730 when moving on the rolling disk 600, thereby further wearing the biomass.

[0028] In one embodiment, Figure 1-Figure 6As shown, a switching adjustment assembly 800 is provided at the top edge of the lower drum portion 400, and the switching adjustment assembly 800 includes a fixed ring 810 and a rotating ring 820. The fixed ring 810 is fixed on the top edge of the lower drum portion 400, and a plurality of mounting rod shafts 850 are provided on the fixed ring 810. The mounting rod shafts 850 are rotatably connected to the ends of the cutting rod arms 710 in the plurality of granulating and cutting assemblies 700 away from the granulating screen drum portion 500. The cutting rod arms 710 The end of the outer frame 100 is also provided with a tail rod frame 740, the rotating ring 820 is rotatably arranged outside the fixed ring 810 and the rotating ring 820 is provided with a plurality of toggle posts 840 that respectively pass through the corresponding tail rod frames 740, and the outer wall of the rotating ring 820 is also provided with a limiting block 830 and a handle 860, and the outer frame 100 is provided with a sliding rod 110 and a U-shaped blocking portion 120 is slidably provided on the sliding rod 110, and the limiting block 830 can be stuck in the U-shaped blocking portion 1 20 interior; In the embodiment of the present invention, when the U-shaped blocking portion 120 moves upward along the sliding rod 110, the limiting block 830 escapes from the U-shaped blocking portion 120, and the operator turns the handle 860 to rotate the rotating ring 820, and the rotating ring 820 drives the toggle column 840 to rotate, and the toggle column 840 drives the tail rod frame 740 and the cutting rod arm 710 to rotate around the mounting rod shaft 850, so that the cutting plate 720 can be away from or close to the outer wall of the net cylinder portion 510, which can adapt to For mesh cylinder portions 510 of different diameters, when the cutting plate 720 is away from the mesh cylinder portion 510, a larger space can be provided to facilitate the disassembly and replacement of the granulation screen cylinder portion 500; when the cutting plate 720 is attached to the side wall of the mesh cylinder portion 510, the limiting block 830 is directly below the U-shaped blocking portion 120, and the limiting block 830 is pushed downward so that the U-shaped blocking portion 120 is stuck inside the limiting block 830, thereby limiting the rotation of the fixing ring 810 to ensure the stability of the granulation cutting assembly 700.

[0029] The above embodiment provides a biomass pelletizing device, wherein, before the pelletizing work starts, the biomass is first placed inside the pelletizing bucket shell 210, the rotating drive unit on the outer ring frame 230 starts to work and drives the pelletizing bucket shell 210 to rotate, and the rotating pelletizing bucket shell 210 drives the pelletizing screen cylinder part 500 and the rolling plate 600 to rotate through the lower conveying channel 220, the lower conveying channel 220 and the pelletizing screen cylinder part 500 rotate relative to the conveying main shaft 310 and the conveying spiral blade 320, and the pushing motor drives the conveying main shaft 310 to rotate, the rotation direction of the conveying main shaft 310 is opposite to the rotation direction of the pelletizing shell assembly 200, the conveying spiral blade 320 pushes the biomass inside the pelletizing bucket shell 210 to the inside of the pelletizing screen cylinder part 500 in a spiral extrusion manner, and the biomass in the pelletizing screen cylinder part 500 is pushed into the pelletizing screen cylinder part 500 by screw extrusion, and the biomass in the pelletizing screen cylinder part 500 is pushed into the pelletizing screen cylinder part 500 by screw extrusion. The biomass is squeezed and passes through the granulation holes on the outer wall of the granulation screen cylinder 500 in an elongated state; since the granulation screen cylinder 500 always keeps a rotating state, the end of the granulation cutting assembly 700 in contact with the outer wall of the granulation screen cylinder 500 can cut off the biomass discharged through the granulation holes to form particles; after being discharged through the granulation holes, the granular biomass falls on the rolling plate 600 due to inertia, and the rolling plate 600 rotates with the granulation screen cylinder 500 and the rolling plate 600 drives the granular biomass to roll toward the inner wall of the lower drum part 400 through the centrifugal force, and the granular biomass rotates on the rolling plate 600 and gradually collides and wears, thereby making the particles more uniform and firm; finally, the granular biomass falls to the bottom of the lower drum part 400 through the drop port 610 and is discharged from the bottom of the lower drum part 400.

[0030] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A biomass pelletizing device, comprising an outer frame, a pelletizing housing assembly, a lower drum portion, a pelletizing screen drum portion and a plurality of pelletizing cutting assemblies, wherein the lower drum portion is fixed on the outer frame and the bottom of the lower drum portion is an inverted cone structure, characterized in that: The lower drum part is provided with a rolling disc inside and the edge of the rolling disc has a plurality of drop openings, the granulating screen cylinder part is installed at the center of the rolling disc, the granulating machine housing assembly is located at the lower side of the granulating screen cylinder part and the granulating machine housing assembly includes a granulating bucket housing, a lower conveying channel and a rotating driving part; An outer ring frame is provided on the outer side wall of the granulating bucket shell and is rotatably matched therewith, and the outer ring frame is connected to the top of the outer frame, the rotary drive unit is connected to the granulating bucket shell and is used to drive the granulating bucket shell to rotate, the lower conveying channel is provided at the bottom of the granulating bucket shell and the bottom of the lower conveying channel is connected to the top of the granulating screen cylinder; A spiral pushing assembly is also arranged inside the granulating bucket shell, and the spiral pushing assembly includes a conveying main shaft and a conveying spiral blade. The top of the conveying main shaft is fixedly connected to the outer frame and the top of the conveying main shaft is provided with a pushing motor. The bottom of the conveying main shaft passes through the lower conveying channel and extends to the inside of the granulating screen cylinder. The part of the conveying main shaft extending into the lower conveying channel and the granulating screen cylinder is provided with a conveying spiral blade. A plurality of granulation and cutting components are circumferentially distributed inside the lower drum portion, one end of the granulation and cutting component extends to the granulation screen cylinder portion and contacts the side wall thereof in a tangential manner, and the other end of the granulation and cutting component is connected to the top edge of the lower drum portion.

2. The biomass pelletizing equipment according to claim 1, characterized in that: A plurality of ring strips are arranged on the upper surface of the rolling disc and all of the ring strips are cocentric with the rolling disc, and the cross section of the ring strips is semicircular.

3. The biomass pelletizing equipment according to claim 1, characterized in that: The rotary drive unit comprises a granulating rotary motor and an outer gear ring arranged on the outer wall of the granulating bucket shell. The granulating rotary motor is arranged on the outer ring frame and a gear unit is arranged at the output end of the granulating rotary motor, which meshes with the outer gear ring.

4. The biomass pelletizing equipment according to claim 1, characterized in that: The granulating bucket shell is also provided with an inner ring portion, and the lower end surface of the inner ring portion has a circular rack; The granulating bucket shell is also provided with a material supporting mesh plate located at the lower side of the inner ring portion; The conveying main shaft is provided with a rolling component, and the rolling component includes a connecting sleeve and a plurality of rolling rotating shafts; The connecting sleeve is fixed on the conveying main shaft and multiple roller shafts are circumferentially distributed on the outside of the connecting sleeve. One end of the roller shaft is rotatably connected to the connecting sleeve and the other end extends to the lower side of the inner ring part. The end of the connecting sleeve on the lower side of the inner ring part is provided with a self-rotating gear meshing with a circular rack, and a crushing roller part is provided on the connecting sleeve.

5. The biomass pelletizing equipment according to claim 4, characterized in that: The granulating screen cylinder part comprises a mesh cylinder part, a bottom plate part and an upper sleeve; The bottom plate is fixed to the bottom of the net cylinder and is detachably connected to the center of the rolling plate. The upper sleeve is arranged on the top of the net cylinder and the inner wall diameter of the upper sleeve is the same as the outer diameter of the lower conveying channel. A plurality of connection bayonet holes are arranged on the top side wall of the upper sleeve, a fixing ring is arranged on the outer wall of the lower conveying channel, and a plurality of protrusions which can be correspondingly inserted into the connection bayonet holes are arranged on the fixing ring; The outer ring frame is connected to the top of the outer frame via at least one adjusting cylinder portion, and the conveying spindle is connected to the output end of the pushing motor via a telescopic coupling.

6. The biomass pelletizing equipment according to any one of claims 1 to 5, characterized in that: The granulation and cutting assembly comprises a cutting lever arm and a cutting plate; One end of the cutting rod arm is connected to the top edge of the lower drum part and the other end of the cutting rod arm points to the granulating screen cylinder part. The cutting plate is arranged on the cutting rod arm. The end of the cutting plate away from the cutting rod arm extends to the side of the granulating screen cylinder part and tangentially contacts the side wall thereof. The cutting rod arm is provided with a plurality of wear strips extending downwardly.

7. The biomass pelletizing equipment according to claim 6, characterized in that: A switching adjustment component is arranged at the top edge of the lower drum portion, and the switching adjustment component comprises a fixed ring and a rotating ring; The fixing ring is fixed on the top edge of the lower drum part and is provided with a plurality of mounting rod shafts, which are rotatably connected to the ends of the cutting rod arms in the plurality of granulating and cutting components away from the granulating screen cylinder part, and the ends of the cutting rod arms are also provided with tail rod frames; The rotating ring is rotatably arranged outside the fixed ring and is provided with a plurality of toggle posts respectively passing through the corresponding tail rod frames, and a limiting block and a handle are also provided on the outer wall of the rotating ring; The outer frame is provided with a sliding rod, and a U-shaped blocking portion is slidably provided on the sliding rod, and the limiting block can be stuck inside the U-shaped blocking portion.

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