Biomass granulator

Abstract

The invention relates to the field of granule manufacturing equipment, in particular to a biomass granulator. A feeding port, a first discharging port and a second discharging port are formed in a shell of a particle manufacturing part from top to bottom, a double-layer flat die assembly is arranged in the shell, and the shell is divided into an upper cavity and a lower cavity by the double-layer flat die assembly; the double-layer ring die assembly is arranged on the upper cavity and covers the double-layer flat die assembly to form a particle manufacturing chamber communicated with the feeding port, and a first discharging chamber is arranged on the periphery of the double-layer ring die assembly; the first discharging cavity communicates with the first discharging opening, and a first dredging and scraping assembly is arranged in the first discharging cavity. A material guide table allowing the driving shaft to rotationally penetrate through is arranged in the lower cavity, a second discharging chamber communicated with the second discharging opening is arranged on the periphery of the material guide table, and a second dredging and scraping assembly is arranged at the top of the material guide table; and the bidirectional rolling assembly is rotationally arranged in the particle manufacturing chamber. According to the device, side independent granulation, bottom independent granulation and side and bottom synchronous granulation are arranged, the granulation modes are diversified, the granulation size is flexible to adjust, and granulation is efficient and smooth.

Description

Technical Field

[0001] The present invention relates to the field of particle manufacturing equipment, and particularly to a biomass granulator. Background Art

[0002] Biomass particles are a type of solid fuel made by processing and compressing organic biomass materials. They are usually cylindrical, with a diameter generally of 6 - 10 mm and a length of 10 - 30 mm. They are an important form of renewable energy and are widely used in fields such as heating, power generation, and industrial fuels. As a substitute for fossil energy, biomass particles have important strategic significance, but their sustainable development requires a balance among ecological protection, food security, and energy demand.

[0003] The Chinese patent document with the authorization announcement number CN117942853B relates to a ring die adjustable biomass granulator. The present invention provides a ring die adjustable biomass granulator, including a support roller compaction chamber, a cross rotary frame, a grinding disc, etc. The compaction chamber is fixedly connected to the support, the cross rotary frame is rotatably connected to the bottom of the compaction chamber, the grinding disc is rotatably connected to the cross rotary frame and is located at the corresponding position of the discharge hole. The grinding disc can be in frictional contact with the inner wall of the compaction chamber, and the main motor provides power for the rotation of the cross rotary frame.

[0004] The existing biomass granulators have the following deficiencies: When granulating, the rolling track of the rolling roller is fixed. Therefore, either particles are manufactured through a flat die for bottom discharge, or particles are manufactured through a ring die for side discharge. The granulation method is single and the discharge path is fixed, resulting in limited granulation efficiency. Summary of the Invention

[0005] Aiming at the problems in the background art, a biomass granulator is proposed. By setting separate side granulation, separate bottom granulation, and synchronous side-bottom granulation, the granulation methods are diverse, the granulation size can be adjusted flexibly, and the granulation is efficient and unobstructed.

[0006] The present invention provides a biomass granulator, which includes a transmission base, a driving part and a granule manufacturing part located on the transmission base. The housing of the granule manufacturing part is provided with a feed inlet, a first discharge outlet and a second discharge outlet from top to bottom. A double-layer flat die assembly is arranged in the housing and divides the housing into an upper cavity and a lower cavity; the double-layer ring die assembly is arranged in the upper cavity and forms a granule manufacturing chamber communicating with the feed inlet by covering the double-layer flat die assembly. A first discharge chamber is arranged on the outer periphery of the double-layer ring die assembly; the first discharge chamber communicates with the first discharge outlet, and a first dredging and scraping assembly for acting on the double-layer ring die assembly is arranged in the first discharge chamber; a guide table through which the driving shaft rotates is arranged in the lower cavity, and a second discharge chamber communicating with the second discharge outlet is arranged on the outer periphery of the guide table. A second dredging and scraping assembly for acting on the double-layer flat die assembly is arranged on the top of the guide table; the double-sided rolling assembly is driven by the driving shaft and rotatably arranged in the granule manufacturing chamber; both the double-layer flat die assembly and the double-layer ring die assembly are arranged to relatively rotate through a double-layer structure, on the one hand, to adjust the size of the manufactured granules, and on the other hand, to switch the discharge path of the manufactured granules; the double-sided rolling assembly adjusts the corresponding rolling method according to the discharge path of the manufactured granules, including side-alone granulation, bottom-alone granulation, and side-bottom synchronous granulation.

[0007] Preferably, the double-layer flat die assembly includes an upper flat die; upper granulation holes are arranged on the upper flat die, a partition frame connecting the inner wall of the housing is arranged on the outer periphery, and a rotatable lower flat die is arranged at the bottom; the lower flat die is driven by a first driving structure to rotate in place, and lower granulation holes are arranged on the lower flat die; through the rotation of the lower flat die, the lower granulation holes are in one-to-one correspondence and communication or intersection with the upper granulation holes; the driving shaft rotates through the centers of the lower flat die and the upper flat die, and the end part extends into the granule manufacturing chamber to connect the double-sided rolling assembly.

[0008] Preferably, the double-layer ring die assembly includes an inner ring die fixed on the outer periphery of the upper flat die; inner granulation holes are arranged on the inner ring die, and a rotatable outer ring die is arranged on the outer periphery; the outer ring die is driven by a second driving structure to rotate in place, and outer granulation holes are arranged on the outer ring die; through the rotation of the outer ring die, the outer granulation holes are in one-to-one correspondence and communication or intersection with the inner granulation holes.

[0009] Preferably, the double-sided rolling assembly includes a rotating sleeve rotatably connected to the top of the upper cavity; a rotating frame is arranged at the bottom of the rotating sleeve, and a support rod is arranged inside; the middle part of the rotating frame is hollowed out, and a receiving seat connecting the support rod is arranged at the hollowed-out part; a lifting sleeve driven by a third driving structure to slide in and out of the rotating sleeve is arranged outside the receiving seat, and the bottom of the receiving seat is connected to the driving shaft; side rolling rollers are rotatably arranged on both sides of the rotating frame; a bottom rolling roller is rotatably arranged on the receiving seat, and is moved to the outside of the receiving seat by overall turning, and the whole changes from a vertical state to a horizontal state and is staggered with the side rolling rollers in position.

[0010] Preferably, a storage opening is provided on the storage base; a driving structure three is provided on the side wall of the storage opening; the mounting frame is driven by the driving structure three to move up and down and rotate along the side wall of the storage opening, and a bidirectional telescopic driving member is provided on the mounting frame; the two telescopic heads of the bidirectional telescopic driving member are respectively connected to the bottom rolling rollers.

[0011] Preferably, the first dredging and scraping component includes a mounting ring that is driven by a driving structure four to rotate coaxially around the outer periphery of the outer ring die; a plurality of first dredging and scraping seats are provided on the mounting ring; a first scraping frame is provided on the first dredging and scraping seat, and a first dredging nozzle connected to a first micro air compressor is also provided.

[0012] Preferably, the mounting ring is located at the top of the outer ring die and the first discharge port, and a discharge space is left below; four groups of the first dredging and scraping seats are arranged at equal intervals along the outer periphery of the mounting ring.

[0013] Preferably, the second dredging and scraping component includes a movable sleeve rotatably sleeved on the driving shaft; the movable sleeve is driven to rotate by a driving structure five, and a second dredging and scraping seat is provided on the sleeve wall; a second scraping frame is provided on the second dredging and scraping seat, and a second dredging nozzle connected to a second micro air compressor is also provided.

[0014] Preferably, the material guiding table is provided with a channel for the driving shaft to rotate through; the movable sleeve is rotatably arranged at the top of the channel; the driving structure five is located in the channel.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: The double-layer flat die assembly, double-layer ring die assembly, and two-way rolling assembly cooperate with each other. When granulating separately on the side, by the relative rotation of the double-layer structure, the communication space between the outer granulation holes and the inner granulation holes is adjusted to control the granulation size. At the same time, the two-way rolling assembly uses the side rolling rollers to perform lateral rolling granulation. When granulating separately at the bottom, by the relative rotation of the double-layer structure, the communication space between the upper granulation holes and the lower granulation holes is adjusted to control the granulation size. At the same time, the bottom rolling rollers of the two-way rolling assembly are exposed and change from the vertical state to the horizontal state to perform bottom rolling granulation. When granulating simultaneously on the side and at the bottom, the double-layer flat die assembly and the double-layer ring die assembly work simultaneously. The side granulation and the bottom granulation can be set to the same thickness or different thicknesses. This makes the granulation method diverse, the granulation efficient, and the product flexible. The dredging and scraping component one and the dredging and scraping component two cooperate with each other. When granulating separately on the side, the scraping rack one scrapes off the biomass particles flowing out of the outer granulation holes; the length of the particles is controlled by the scraping speed of the scraping rack one; in case of blockage, the high-pressure gas is sprayed out by the dredging nozzle one to dredge the connection space between the outer granulation holes and the inner granulation holes. When granulating separately at the bottom, the scraping rack two scrapes off the biomass particles flowing out of the lower granulation holes; the length of the particles is controlled by the scraping speed of the scraping rack two; in case of blockage, the high-pressure gas is sprayed out by the dredging nozzle two to dredge the connection space between the lower granulation holes and the upper granulation holes. When granulating simultaneously on the side and at the bottom, the dredging and scraping component one and the dredging and scraping component two work simultaneously. The side granulation and the bottom granulation can be set to the same length or different lengths. On the one hand, it further accurately controls the granulation size, realizes two-way discharging, improves the efficiency and accuracy of granulation. On the other hand, it reduces the blockage of biomass raw materials during the granulation process and effectively maintains the granulation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structure diagram of the biomass granulator; Figure 2 is the internal structure diagram of the granule manufacturing part; Figure 3 is the top view of the granule manufacturing chamber; Figure 4 is the bottom view of the double-layer flat die assembly and the double-layer ring die assembly; Figure 5 is the exploded view of the double-layer flat die assembly and the double-layer ring die assembly; Figure 6 is the partial cross-sectional view of the two-way rolling assembly (state one); Figure 7 is the structure diagram of the two-way rolling assembly (state two); Figure 8 is Figure 7 the structure diagram of the bottom rolling roller in Figure 9It is the structural diagram of the first dredging and scraping component; Figure 10 It is the structural diagram of the second dredging and scraping component (state 1); Figure 11 It is the structural diagram of the second dredging and scraping component (state 2).

[0017] Reference numerals: 1. Particle manufacturing part; 101. Feed inlet; 102. First discharge outlet; 103. Second discharge outlet; 104. Upper cavity; 105. Lower cavity; 2. Transmission base; 3. Driving part; 4. Double-layer flat die assembly; 401. Partition frame; 402. Upper flat die; 403. Lower flat die; 404. First toothed ring; 5. Double-layer ring die assembly; 501. Inner ring die; 502. Outer ring die; 503. Second toothed ring; 504. Ring-shaped slide rail; 6. Double-sided rolling component; 601. Rotating frame; 602. Side rolling roller; 603. Rotating sleeve; 604. Support rod; 605. Storage seat; 606. Lifting sleeve; 607. Bottom rolling roller; 608. Storage through hole; 609. Double-sided telescopic driving part; 610. Lifting block; 611. Fifth motor; 612. Mounting frame; 613. Second lead screw; 7. First dredging and scraping component; 701. Mounting ring; 702. Third toothed ring; 703. First dredging and scraping seat; 704. First scraping frame; 705. First dredging nozzle; 8. Driving shaft; 9. Material guiding table; 10. Second dredging and scraping component; 1001. Movable sleeve; 1002. Second scraping frame; 1003. Second scraping seat; 1004. Second dredging nozzle; 1005. Fourth toothed ring. Detailed implementation manners

[0018] Embodiment 1. In this embodiment, a biomass granulator is proposed. As Figures 1-4 shown, the biomass granulator includes a transmission base 2, a driving part 3 located on the transmission base 2, and a particle manufacturing part 1. The housing of the particle manufacturing part 1 is provided with a feed inlet 101, a first discharge outlet 102, and a second discharge outlet 103 from top to bottom. A double-layer flat die assembly 4 is arranged in the housing and divides the housing into an upper cavity 104 and a lower cavity 105; a double-layer ring die assembly 5 is arranged in the upper cavity 104 and forms a particle manufacturing chamber communicating with the feed inlet 101 by covering the double-layer flat die assembly 4. The outer periphery of the double-layer ring die assembly 5 is set as a first discharge chamber; the first discharge chamber communicates with the first discharge outlet 102, and a first dredging and scraping component 7 acting on the double-layer ring die assembly 5 is arranged in the first discharge chamber; a material guiding table 9 through which a driving shaft 8 rotates is arranged in the lower cavity 105. The outer periphery of the material guiding table 9 is set as a second discharge chamber communicating with the second discharge outlet 103, and a second dredging and scraping component 10 acting on the double-layer flat die assembly 4 is arranged on the top of the material guiding table 9; the double-sided rolling component 6 is driven by the driving shaft 8 and is rotatably arranged in the particle manufacturing chamber.

[0019] Among them, the double-layer flat die assembly 4 and the double-layer ring die assembly 5 are both set to adjust the size of the manufactured particles through the relative rotation of the double-layer structure, and on the other hand, switch the discharge path of the manufactured particles; the two-way rolling assembly 6 adjusts the corresponding rolling method according to the discharge path of the manufactured particles, including side-alone granulation, bottom-alone granulation, and side-bottom synchronous granulation. That is to say, when the double-layer flat die assembly 4 or the double-layer ring die assembly 5 works alone, the two-way rolling assembly 6 is adjusted to bottom rolling or side rolling granulation. When the double-layer flat die assembly 4 and the double-layer ring die assembly 5 work simultaneously, the two-way rolling assembly 6 is adjusted to granulate with bottom rolling and side rolling at the same time. During the granulation process, the granulation efficiency can be improved by synchronous granulation of the double-layer flat die assembly 4 and the double-layer ring die assembly 5. Since the discharge is separated, particles of different sizes can also be manufactured synchronously. Of course, it is also possible to choose to granulate on the side or at the bottom alone.

[0020] As Figure 5 shown, the double-layer flat die assembly 4 includes an upper flat die 402; upper granulation holes are provided on the upper flat die 402, a partition frame 401 connecting the inner wall of the housing is provided on the outer periphery, and a rotatable lower flat die 403 is provided at the bottom; the lower flat die 403 is driven by a first driving structure to rotate in place, and lower granulation holes are provided on the lower flat die 403; by rotating the lower flat die 403, the lower granulation holes are connected or staggered one by one with the upper granulation holes; the driving shaft 8 rotates through the centers of the lower flat die 403 and the upper flat die 402, and the end extends into the particle manufacturing chamber to connect the two-way rolling assembly 6.

[0021] It should be further explained that the first driving structure includes a first gear ring 404 located at the bottom of the lower flat die 403, and a first gear driven by a first motor to rotate is provided on one side of the lower flat die 403; through the meshing of the first gear and the first gear ring 404, the lower flat die 403 is driven to rotate.

[0022] By fixing the upper flat die 402 and rotating the lower flat die 403, the lower granulation holes can be connected or staggered one by one with the upper granulation holes. The connection space between the two is the corresponding granulation size. If there is no connection space, the double-layer flat die assembly 4 stops granulating.

[0023] As Figure 5 shown, the double-layer ring die assembly 5 includes an inner ring die 501 fixed on the outer periphery of the upper flat die 402; inner granulation holes are provided on the inner ring die 501, and a rotatable outer ring die 502 is provided on the outer periphery; the outer ring die 502 is driven by a second driving structure to rotate in place, and outer granulation holes are provided on the outer ring die 502; by rotating the outer ring die 502, the outer granulation holes are connected or staggered one by one with the inner granulation holes.

[0024] It should be further noted that the driving structure two includes a second toothed ring 503 located at the top of the outer ring die 502; a second gear driven by a second motor to rotate is arranged on one side of the second toothed ring 503; through the meshing of the second gear and the second toothed ring 503, the outer ring die 502 is driven to rotate.

[0025] It should be further noted that an annular slide rail 504 is arranged on the partition frame 401; the bottom of the outer ring die 502 is slidably connected to the annular slide rail 504.

[0026] By fixing the inner ring die 501 and rotating the outer ring die 502, the communication or intersection of the outer granulation holes and the inner granulation holes can be adjusted one by one. The connection space between the two is the corresponding granulation size. If there is no communication space, the double-layer ring die assembly 5 stops granulating.

[0027] As Figures 6-8 shown, the double-sided rolling assembly 6 includes a rotating sleeve 603 rotatably connected to the top of the upper cavity 104; a rotating frame 601 is arranged at the bottom of the rotating sleeve 603, and a support rod 604 is arranged inside; the middle of the rotating frame 601 is hollowed out, and a receiving seat 605 connecting the support rod 604 is arranged at the hollowed-out part; an elevating sleeve 606 driven by a driving structure three is arranged outside the receiving seat 605 and slides in and out of the rotating sleeve 603, and the bottom of the receiving seat 605 is connected to the driving shaft 8.

[0028] It should be further noted that the driving structure three includes a first lead screw driven by a third motor to rotate; the first lead screw is rotatably arranged in the rotating sleeve 603; an elevating seat is arranged at the top of the elevating sleeve 606; the elevating seat is threadedly connected to the first lead screw to drive the elevating sleeve 606 to move in and out of the rotating sleeve 603.

[0029] It should be further noted that the side rolling rollers 602 are rotatably arranged on both sides of the rotating frame 601; the bottom rolling roller 607 is rotatably arranged on the receiving seat 605, and is moved out of the receiving seat 605 by overall flipping, changing from the vertical state to the horizontal state as a whole, and is staggered with the position of the side rolling rollers 602.

[0030] When performing side rolling alone, the elevating sleeve 606 covers the receiving seat 605. The bottom rolling roller 607 is located on the receiving seat 605, and the side rolling rollers 602 rotate and move along the inner wall of the inner ring die 501 to roll the biomass raw material so that it passes through the communication space between the outer granulation holes and the inner granulation holes. When performing bottom rolling or side rolling and bottom rolling synchronously alone, the elevating sleeve 606 rises to the rotating sleeve 603, exposing the receiving seat 605. The bottom rolling roller 607 is moved out, and then can rotate synchronously with the rotating frame 601 and rotate and move along the bottom wall of the upper flat die 402 to roll the biomass raw material so that it passes through the communication space between the lower granulation holes and the upper granulation holes.

[0031] It should be further noted that a storage opening 608 is provided on the storage base 605; a third driving structure is provided on the side wall of the storage opening 608; the mounting frame 612 is driven by the third driving structure to move up and down and rotate along the side wall of the storage opening 608, and a bidirectional telescopic driving member 609 is provided on the mounting frame 612; the two telescopic heads of the bidirectional telescopic driving member 609 are respectively connected to the bottom rolling roller 607.

[0032] It should be further noted that an installation groove is provided on the side wall of the storage opening 608; a second lead screw 613 driven by a fourth motor to rotate is provided in the installation groove; a lifting block 610 that is threadedly connected and moves up and down is provided on the second lead screw 613; a fifth motor 611 is provided on the lifting block 610; the mounting frame 612 is connected to the main shaft of the fifth motor 611 to achieve up and down movement and rotation at the origin.

[0033] It should be further noted that the lifting block 610 is slidably connected to the groove wall of the installation groove, and telescopic membranes that seal the installation groove are provided at the upper and lower ends to prevent biomass raw materials from entering the installation groove.

[0034] It should be further noted that a ring structure is provided on the mounting frame 612; the middle part of the bidirectional telescopic driving member 609 is penetrated and arranged on the ring structure, and is specifically set as a double-headed bidirectional cylinder, and the telescopic rod end of the double-headed bidirectional cylinder extends into the bottom rolling roller 607 and is rotatably connected to the bottom rolling roller 607.

[0035] When performing bottom rolling or side rolling alone or bottom rolling synchronously, the lifting sleeve 606 rises to the rotating sleeve 603, exposing the storage base 605. The mounting frame 612 moves down and rotates at the origin to move out the two groups of bottom rolling rollers 607, and cooperates with the double-headed bidirectional cylinder to drive the bottom rolling rollers 607 on both sides to move, so that the bottom rolling roller 607 can be used for bottom rolling. The rolling range and position can be adjusted. At this time, the side rolling roller 602 still rotates and moves along the inner wall of the inner ring die 501, which can effectively dredge and push the biomass raw materials and accelerate bottom granulation. Of course, the side rolling roller 602 can also be lifted and removed to directly perform bottom single granulation.

[0036] Embodiment 2. In this embodiment, a biomass granulator is proposed. On the basis of Embodiment 1, the structures of the first dredging and scraping component 7 and the second dredging and scraping component 10 are further disclosed.

[0037] As Figure 9 shown, the first dredging and scraping component 7 includes a mounting ring 701 that is driven by a fourth driving structure to rotate coaxially on the outer periphery of the outer ring die 502; a plurality of first dredging and scraping seats 703 are provided on the mounting ring 701.

[0038] It should be further noted that the fourth driving structure includes a third toothed ring 702 located on the outer periphery of the mounting ring 701; a third gear driven by a sixth motor is arranged on the outer side of the third toothed ring 702; through the meshing of the third gear and the third toothed ring 702, the mounting ring 701 is driven to rotate.

[0039] It should be further noted that a first scraping frame 704 is arranged on the first dredging and scraping seat 703, and a first dredging nozzle 705 communicating with a first micro air compressor is also arranged.

[0040] It should be further noted that the first micro air compressor is arranged on the first dredging and scraping seat 703.

[0041] During side granulation, the mounting ring 701 rotates to drive the first scraping frame 704 to rotate synchronously. During the rotation process, the first scraping frame 704 scrapes off the biomass particles flowing out of the outer granulation holes. The length of the particles is controlled by the scraping speed of the first scraping frame 704, and the thickness of the particles is controlled by the connecting space between the outer granulation holes and the inner granulation holes. In case of blockage, the first dredging nozzle 705 sprays high-pressure gas to dredge the connecting space between the outer granulation holes and the inner granulation holes.

[0042] It should be further noted that the mounting ring 701 is located at the top of the outer ring die 502 and the first discharge port 102, leaving a discharge space below; four groups of the first dredging and scraping seats 703 are arranged at equal intervals along the outer periphery of the mounting ring 701.

[0043] As Figures 10-11 shown, the second dredging and scraping assembly 10 includes a movable sleeve 1001 rotatably sleeved on the driving shaft 8; the movable sleeve 1001 is driven to rotate by a fifth driving structure, and a second dredging and scraping seat 1003 is arranged on the sleeve wall.

[0044] It should be further noted that the fifth driving structure includes a fourth toothed ring 1005 located on the outer periphery of the movable sleeve 1001; a fourth gear driven by a seventh motor is arranged on the outer side of the fourth toothed ring 1005; through the meshing of the fourth gear and the fourth toothed ring 1005, the movable sleeve 1001 is driven to rotate.

[0045] It should be further noted that a second scraping frame 1002 is arranged on the second dredging and scraping seat 1003, and a second dredging nozzle 1004 communicating with a second micro air compressor is also arranged.

[0046] It should be further noted that the second micro air compressor is arranged on the second dredging and scraping seat 1003.

[0047] During bottom granulation, the movable sleeve 1001 rotates to drive the second scraping rack 1002 to rotate synchronously. During the rotation process, the second scraping rack 1002 scrapes off the biomass particles flowing out of the lower granulation holes. The length of the particles is controlled by the scraping speed of the second scraping rack 1002, and the thickness of the particles is controlled by the connecting space between the lower granulation holes and the upper granulation holes. In case of material blockage, the high-pressure gas is sprayed by the second dredging nozzle 1004 to dredge the connecting space between the lower granulation holes and the upper granulation holes.

[0048] It should be further noted that the material guiding table 9 is provided with a channel for the driving shaft 8 to rotate through; the movable sleeve 1001 is rotatably arranged at the top of the channel; the fifth driving structure is located in the channel.

[0049] Embodiment 3, this embodiment proposes a method for manufacturing biomass particles, which uses the biomass particle machine proposed in Embodiment 1 and Embodiment 2. The specific method is as follows: S1. Put the biomass raw material into the particle manufacturing chamber from the feed inlet 101; S2. Select side-alone granulation, bottom-alone granulation or side-bottom synchronous granulation; For side-alone granulation, the double-layer ring die assembly 5: the lower granulation holes and the upper granulation holes are staggered in one-to-one correspondence, and the bottom granulation is closed; by rotating the outer ring die 502, the communication space between the outer granulation holes and the inner granulation holes is adjusted to match the granulation size; the driving shaft 8 drives the receiving seat 605 to rotate; at this time, the lifting sleeve 606 covers the receiving seat 605; the side rolling roller 602 rotates and moves along the inner wall of the inner ring die 501 to roll the biomass raw material so that it passes through the communication space between the outer granulation holes and the inner granulation holes; For bottom-alone granulation, the double-layer flat die assembly 4 works: the outer granulation holes and the inner granulation holes are staggered in one-to-one correspondence, and the side granulation is closed; by rotating the lower flat die 403, the communication space between the lower granulation holes and the upper granulation holes is adjusted to match the granulation size; the driving shaft 8 drives the receiving seat 605 to rotate; at this time, the lifting sleeve 606 rises to expose the receiving seat 605; the bottom rolling roller 607 moves out and can then rotate and move horizontally synchronously with the rotating frame 601 to roll the biomass raw material so that it passes through the communication space between the lower granulation holes and the upper granulation holes; For side-bottom synchronous granulation, the double-layer flat die assembly 4 and the double-layer ring die assembly 5 work simultaneously: the side granulation and the bottom granulation can be set to the same thickness or different thicknesses; S3. Scrape and form the granulation; For side-alone granulation, the first dredging and scraping assembly 7 works: by rotating the mounting ring 701, the first scraping rack 704 is driven to rotate synchronously; during the rotation process, the first scraping rack 704 scrapes off the biomass particles flowing out of the outer granulation holes; the length of the particles is controlled by the scraping speed of the first scraping rack 704; in case of material blockage, the high-pressure gas is sprayed by the first dredging nozzle 705 to dredge the connecting space between the outer granulation holes and the inner granulation holes; Granulation is carried out separately at the bottom, and the scraping and dredging component II 10 works: by rotating the movable sleeve 1001, the scraping frame II 1002 is driven to rotate synchronously; during the rotation process, the scraping frame II 1002 scrapes off the biomass particles flowing out of the lower granulation holes; the length of the particles is controlled by the scraping speed of the scraping frame II 1002; in case of material blockage, the high-pressure gas is sprayed out by the dredging nozzle II 1004 to dredge the connection space between the lower granulation holes and the upper granulation holes. Granulation is carried out simultaneously at the side and the bottom, and the scraping and dredging component I 7 and the scraping and dredging component II 10 work simultaneously: the side granulation and the bottom granulation can be set to the same length or different lengths.

[0050] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A biomass pellet machine, comprising a transmission base (2), a driving unit (3) and a pellet making unit (1) located on the transmission base (2), characterized in that: The shell of the particle production part (1) is provided with a feed inlet (101), a first discharge port (102) and a second discharge port (103) from top to bottom; a double-layer flat die assembly (4) is provided in the shell and is divided into an upper cavity (104) and a lower cavity (105) by the double-layer flat die assembly (4); a double-layer ring die assembly (5) is provided in the upper cavity (104) and covers the double-layer flat die assembly (4) to form a particle production chamber connected to the feed inlet (101); the outer periphery of the double-layer ring die assembly (5) is provided as a first discharge chamber; the first discharge chamber The material guide platform (9) is arranged on the lower cavity (105), and the outer periphery of the material guide platform (9) is arranged on the second material discharging chamber (102) and connected to the material discharging port (102). The material discharging chamber (10) is provided with a second material discharging chamber (10) and connected to the material discharging port (103). The second material discharging chamber (10) is provided on the top of the material guide platform (9) and is provided with a second material discharging chamber (10) and connected to the material discharging port (102). The bidirectional rolling assembly (6) is driven by the driving shaft (8) and is rotatably arranged in the particle manufacturing chamber. The double-layer flat die assembly (4) and the double-layer ring die assembly (5) are both configured to adjust the size of the manufactured particles and switch the discharge path of the manufactured particles through relative rotation of the double-layer structure; the bidirectional rolling assembly (6) adjusts the corresponding rolling method according to the discharge path of the manufactured particles, including side single granulation, bottom single granulation and side and bottom synchronous granulation.

2. The biomass pellet machine according to claim 1, characterized in that: The double-layer flat die assembly (4) comprises an upper flat die (402); an upper granulation hole is arranged on the upper flat die (402); a partition frame (401) connected to the inner wall of the shell is arranged on the outer periphery; and a rotatable lower flat die (403) is arranged at the bottom; The lower flat die (403) is driven to rotate in situ by a driving structure, and lower granulation holes are arranged on the lower flat die (403); when the lower flat die (403) rotates, the lower granulation holes are connected or staggered with the upper granulation holes in a one-to-one correspondence; The driving shaft (8) rotates and passes through the center of the lower flat die (403) and the upper flat die (402), and the end thereof extends into the particle manufacturing chamber and is connected to the bidirectional rolling assembly (6).

3. The biomass pellet machine according to claim 2, characterized in that: The double-layer ring die assembly (5) comprises an inner ring die (501) fixed on the outer periphery of the upper flat die (402); the inner ring die (501) is provided with inner granulation holes, and the outer periphery is provided with a rotatable outer ring die (502); The outer ring die (502) is driven to rotate in situ by the second driving structure, and the outer ring die (502) is provided with outer granulation holes; when the outer ring die (502) rotates, the outer granulation holes are connected or staggered with the inner granulation holes in a one-to-one correspondence.

4. The biomass pellet machine according to claim 1, characterized in that: The bidirectional rolling assembly (6) comprises a rotating sleeve (603) rotatably connected to the top of the upper cavity (104); a rotating frame (601) is arranged at the bottom of the rotating sleeve (603), and a support rod (604) is arranged inside; the middle of the rotating frame (601) is hollowed out, and a storage seat (605) connected to the support rod (604) is arranged at the hollowed-out part; a lifting sleeve (606) is arranged outside the storage seat (605) and is driven by the driving structure to slide in and out of the rotating sleeve (603); the bottom of the storage seat (605) is connected to the driving shaft (8); The side rolling rollers (602) are rotatably arranged on both sides of the rotating frame (601); The bottom rolling roller (607) is rotatably arranged on the storage seat (605), and is moved to the outside of the storage seat (605) by flipping as a whole, and the whole is transformed from a vertical state to a horizontal state, and the position is staggered with the side rolling roller (602).

5. The biomass pellet machine according to claim 4, characterized in that: A storage opening (608) is provided on the storage seat (605); a driving structure three is provided on the side wall of the storage opening (608); the mounting frame (612) is driven by the driving structure three to move up and down and rotate along the side wall of the storage opening (608); a bidirectional telescopic driving member (609) is provided on the mounting frame (612); two telescopic heads of the bidirectional telescopic driving member (609) are respectively connected to the bottom rolling roller (607).

6. The biomass pellet machine according to claim 3, characterized in that: The dredging scraper assembly (7) comprises a mounting ring (701) driven by a driving structure (4) to coaxially rotate on the outer periphery of the outer ring mold (502); a plurality of dredging scraper seats (703) are arranged on the mounting ring (701); A scraper frame (704) is arranged on a dredging scraper seat (703), and a dredging nozzle (705) connected to a micro air compressor is also arranged.

7. The biomass pellet machine according to claim 6, characterized in that: The mounting ring (701) is located on the top of the outer ring mold (502) and the first discharge port (102), with a discharge space left below; Four groups of dredging scraper seats (703) are arranged at equal intervals along the outer circumference of the mounting ring (701).

8. The biomass pellet machine according to claim 2, characterized in that: The dredging scraper assembly 2 (10) comprises a movable sleeve (1001) rotatably sleeved on the driving shaft (8); the movable sleeve (1001) is driven to rotate by the driving structure 5, and a dredging scraper seat 2 (1003) is provided on the sleeve wall; A second scraper frame (1002) is arranged on the second dredging scraper seat (1003), and a second dredging nozzle (1004) connected to the second micro air compressor is also arranged.

9. The biomass pellet machine according to claim 8, characterized in that: The material guide table (9) is provided with a passage through which the drive shaft (8) rotates; The movable sleeve (1001) is rotatably arranged on the top of the channel; The driving structure five is located in the channel.

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