A biomass pellet machine

Abstract

The present invention relates to the field of pellet manufacturing equipment, and in particular to a biomass pellet machine. The shell of its pellet manufacturing part is provided with a feed port, a discharge port 1 and a discharge port 2 from top to bottom, a double-layer flat die assembly is provided in the shell, and is divided into an upper cavity and a lower cavity by the double-layer flat die assembly; a double-layer ring die assembly is provided in the upper cavity and forms a pellet manufacturing chamber connected to the feed port by covering the double-layer flat die assembly, and the outer periphery of the double-layer ring die assembly is provided as a discharge chamber 1; the discharge chamber 1 is connected to the discharge port 1, and a dredging scraper assembly 1 is provided in the discharge chamber 1; a guide platform for the drive shaft to rotate through is provided in the lower cavity, and the outer periphery of the guide platform is provided as a discharge chamber 2 connected to the discharge port 2, and a dredging scraper assembly 2 is provided on the top of the guide platform; a bidirectional rolling assembly is rotatably provided in the pellet manufacturing chamber. The present invention is provided with separate granulation on the side, separate granulation on the bottom, and synchronous granulation on the side and bottom, with various granulation methods, flexible adjustment of the granulation size, and efficient and smooth granulation.

Description

Technical Field

[0001] The present invention relates to the field of particle manufacturing equipment, in particular to a biomass particle machine. Background Art

[0002] Biomass pellets are a solid fuel made from processed and compressed organic biomass. They are typically cylindrical, with a diameter of 6-10 mm and a length of 10-30 mm. They are an important form of renewable energy, widely used in heating, power generation, and industrial fuel. As an alternative to fossil fuels, the sustainable development of biomass pellets requires a balance between ecological protection, food security, and energy needs.

[0003] Chinese patent document CN117942853B relates to a biomass pellet machine with an adjustable ring die. The invention provides a biomass pellet machine with an adjustable ring die, comprising a support, a rolling chamber, a cross turret, and a rolling plate. The rolling chamber is fixed to the support, the cross turret is rotatably connected to the bottom of the rolling chamber, and the rolling plate is rotatably connected to the cross turret and located at a position corresponding to the discharge hole. The rolling plate is capable of frictional contact with the inner wall of the rolling chamber, and a main motor provides power for the rotation of the cross turret.

[0004] The biomass pellet machine in the prior art has the following shortcomings: the rolling track of the rolling roller is fixed during pelletizing, so either the pellets with bottom discharge are produced through a flat die or the pellets with side discharge are produced through a ring die. The pelletizing method is single and the discharge path is fixed, which limits the efficiency of pelletizing. Summary of the Invention

[0005] In view of the problems existing in the background technology, a biomass pellet machine is proposed. By setting up separate granulation on the side, separate granulation on the bottom and synchronous granulation on the side and bottom, the granulation mode is diverse, the size of the granulation is flexibly adjusted, and the granulation is efficient and smooth.

[0006] The present invention proposes a biomass pellet machine, comprising a transmission base and a driving part and a pellet making part located on the transmission base. The shell of the pellet making part is provided with a feed port, a first discharge port and a second discharge port from top to bottom. A double-layer flat die assembly is provided in the shell and is divided into an upper cavity and a lower cavity by the double-layer flat die assembly; a double-layer ring die assembly is provided in the upper cavity and a pellet making chamber connected to the feed port is formed by covering the double-layer flat die assembly, and the outer periphery of the double-layer ring die assembly is provided with a first discharge chamber; the first discharge chamber is connected to the first discharge port, and a first dredging scraper assembly is provided in the first discharge chamber for acting on the double-layer ring die assembly; the driving shaft rotates The through-material guide platform is arranged in the lower cavity, the outer periphery of the material guide platform is arranged as the second discharge chamber connected to the second discharge port, and the top of the material guide platform is provided with the second dredging scraper component which acts on the double-layer flat die component; the bidirectional rolling component is driven by the driving shaft and is rotatably arranged in the particle manufacturing chamber; the double-layer flat die component and the double-layer ring die component are both arranged to adjust the size of the manufactured particles on the one hand and switch the discharge path of the manufactured particles on the other hand through the relative rotation of the double-layer structure; the bidirectional rolling component adjusts the corresponding rolling mode according to the discharge path of the manufactured particles, including separate granulation on the side, separate granulation on the bottom and synchronous granulation on the side and bottom.

[0007] Preferably, the double-layer flat die assembly includes an upper flat die; an upper granulation hole is provided on the upper flat die, a partition frame connected to the inner wall of the shell is provided on the outer periphery, and a rotatable lower flat die is provided at the bottom; the lower flat die is driven to rotate in place by a driving structure, and a lower granulation hole is provided on the lower flat die; through the rotation of the lower flat die, the lower granulation holes are connected or staggered with the upper granulation holes in a one-to-one correspondence; the drive shaft rotates through the center of the lower flat die and the upper flat die, and the end extends into the particle manufacturing chamber to connect the two-way 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; the inner ring die is provided with inner granulation holes, and the outer periphery is provided with a rotatable outer ring die; the outer ring die is driven to rotate in place by the second driving structure, and the outer ring die is provided with outer granulation holes; through the rotation of the outer ring die, the outer granulation holes are connected or staggered with the inner granulation holes in a one-to-one correspondence.

[0009] Preferably, the bidirectional rolling assembly includes a rotating sleeve rotatably connected to the top of the upper cavity; a rotating frame is provided at the bottom of the rotating sleeve, and a support rod is provided inside; the middle part of the rotating frame is hollowed out, and a storage seat connected to the support rod is provided at the hollowed-out part; the outside of the storage seat is provided with a lifting sleeve that is driven by the driving structure to slide in and out of the rotating sleeve, and the bottom of the storage seat is connected to the drive shaft; the side rolling rollers are rotatably provided on both sides of the rotating frame; the bottom rolling roller is rotatably provided on the storage seat, and is moved to the outside of the storage seat by flipping the whole body, and the whole body is changed from a vertical state to a horizontal state, and the position is staggered with the side rolling rollers.

[0010] Preferably, a storage opening is provided on the storage seat; 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 lift 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 roller.

[0011] Preferably, the dredging scraper assembly includes a mounting ring that is driven by a driving structure 4 and rotates coaxially on the outer periphery of the outer ring mold; multiple groups of dredging scraper seats are provided on the mounting ring; a scraper frame is provided on the dredging scraper seat, and a dredging nozzle connected to a micro air compressor is also provided.

[0012] Preferably, the mounting ring is located at the top of the outer ring mold and the discharge port 1, with a discharge space left below; four groups of dredging scraper seats 1 are arranged at equal intervals along the outer circumference of the mounting ring.

[0013] Preferably, the dredging scraper component 2 includes a movable sleeve rotatably connected to the drive shaft; the movable sleeve is driven to rotate by the driving structure 5, and a dredging scraper seat 2 is provided on the sleeve wall; a scraper frame 2 is provided on the dredging scraper seat 2, and a dredging nozzle 2 connected to the micro air compressor 2 is also provided.

[0014] Preferably, the material guide platform is provided with a channel for the drive shaft to rotate through; the movable sleeve is rotatably arranged on the top of the channel; and the drive structure five is located in the channel.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: a double-layer flat die assembly, a double-layer ring die assembly, and a bidirectional rolling die assembly are arranged in coordination. When performing side granulation alone, the connection space between the outer granulation hole and the inner granulation hole is adjusted by relative rotation of the double-layer structure to control the granulation size. At the same time, the bidirectional rolling die assembly uses the side rolling roller to perform side rolling granulation. When performing bottom granulation alone, the connection space between the upper granulation hole and the lower granulation hole is adjusted by relative rotation of the double-layer structure to control the granulation size. At the same time, the bottom rolling roller of the bidirectional rolling die assembly is exposed and changes from a vertical state to a horizontal state to perform bottom rolling granulation. When performing synchronous granulation of the side and bottom, the double-layer flat die assembly and the double-layer ring die assembly operate simultaneously. The side granulation and the bottom granulation can be set to the same coarseness or different coarseness. This makes the granulation method diverse, the granulation efficiency high, and the product flexibility. The first and second dredging scraper assemblies work together. During side-only granulation, scraper 1 scrapes the biomass pellets flowing out of the outer granulation hole. The length of the pellets is controlled by the scraping speed of scraper 1. In the event of blockage, high-pressure gas is ejected from dredging nozzle 1 to clear the connection between the outer and inner granulation holes. During bottom-only granulation, scraper 2 scrapes the biomass pellets flowing out of the lower granulation hole. The length of the pellets is controlled by the scraping speed of scraper 2. In the event of blockage, high-pressure gas is ejected from dredging nozzle 2 to clear the connection between the lower and upper granulation holes. During simultaneous side and bottom granulation, scraper assemblies 1 and 2 operate simultaneously. The side and bottom granulation can be set to the same or different lengths. This allows for more precise control of pellet size, enabling bidirectional discharge and improving pelletizing efficiency and precision. It also reduces biomass feedstock blockage during the pelletizing process, effectively maintaining pelletizing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the biomass pellet machine;

[0017] Figure 2 This is the internal structure diagram of the particle manufacturing department;

[0018] Figure 3 This is a top view of the particle manufacturing chamber;

[0019] Figure 4 It is a bottom view of the double-layer flat die assembly and the double-layer ring die assembly;

[0020] Figure 5 This is a disassembled diagram of the double-layer flat die assembly and the double-layer ring die assembly;

[0021] Figure 6 It is a partial cross-sectional view of the bidirectional rolling assembly (state 1);

[0022] Figure 7 This is the structural diagram of the bidirectional rolling component (state 2);

[0023] Figure 8 for Figure 7 The bottom rolling roller structure diagram in the figure;

[0024] Figure 9 It is a structural diagram of the dredging scraper component one;

[0025] Figure 10 This is the structural diagram of the dredging scraper component 2 (state 1);

[0026] Figure 11 This is the structural diagram of the dredging scraper component two (state two).

[0027] Figure numerals: 1. Particle production unit; 101. Feed port; 102. Discharge port 1; 103. Discharge port 2; 104. Upper cavity; 105. Lower cavity; 2. Transmission base; 3. Drive unit; 4. Double-layer flat die assembly; 401. Partition frame; 402. Upper flat die; 403. Lower flat die; 404. Gear ring 1; 5. Double-layer ring die assembly; 501. Inner ring die; 502. Outer ring die; 503. Gear ring 2; 504. Ring slide; 6. Bidirectional rolling assembly; 601. Rotating frame; 602. Side rolling roller; 603. Rotating sleeve; 604. Support rod; 605. Storage seat ; 606, lifting sleeve; 607, bottom crushing roller; 608, storage port; 609, two-way telescopic drive component; 610, lifting block; 611, motor five; 612, mounting frame; 613, screw two; 7, dredge scraper component one; 701, mounting ring; 702, gear ring three; 703, dredge scraper seat one; 704, scraper frame one; 705, dredge nozzle one; 8, drive shaft; 9, material guide table; 10, dredge scraper component two; 1001, movable sleeve; 1002, scraper frame two; 1003, dredge scraper seat two; 1004, dredge nozzle two; 1005, gear ring four. DETAILED DESCRIPTION

[0028] Example 1: This example proposes a biomass pellet machine. Figure 1-4As shown, the biomass pellet machine includes a transmission base 2 and a driving part 3 and a pellet manufacturing part 1 located on the transmission base 2. The shell of the pellet manufacturing part 1 is provided with a feed port 101, a discharge port 1 102 and a discharge port 2 103 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 forms a pellet manufacturing chamber connected to the feed port 101 by covering the double-layer flat die assembly 4. The outer periphery of the ring die assembly 5 is set as a discharge chamber 1; the discharge chamber 1 is connected to the discharge port 102, and a dredging scraper assembly 7 is set in the discharge chamber 1 for acting on the double-layer ring die assembly 5; the guide platform 9 for the drive shaft 8 to rotate through is set in the lower cavity 105, and the outer periphery of the guide platform 9 is set as a discharge chamber 2 connected to the discharge port 2 103, and a dredging scraper assembly 2 10 is set on the top of the guide platform 9 for acting on the double-layer flat die assembly 4; the bidirectional rolling assembly 6 is driven by the drive shaft 8 and is rotatably set in the particle manufacturing chamber.

[0029] Among them, 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 on the one hand and switch the discharge path of the manufactured particles on the other hand through the 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 separate granulation of the side, separate granulation of the bottom, and synchronous granulation of the side and bottom. That is to say, when the double-layer flat die assembly 4 or the double-layer ring die assembly 5 works alone, the bidirectional 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 at the same time, the bidirectional rolling assembly 6 is adjusted to simultaneous granulation of the bottom and side rolling. During the granulation process, the granulation efficiency can be improved by the 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 perform side granulation or bottom granulation separately.

[0030] like Figure 5 As shown, the double-layer flat die assembly 4 includes an upper flat die 402; an upper granulation hole is provided on the upper flat die 402, a partition frame 401 connected to the inner wall of the shell is provided on the periphery, and a rotatable lower flat die 403 is provided at the bottom; the lower flat die 403 is driven to rotate in place by a driving structure, and the lower flat die 403 is provided with a lower granulation hole; through the rotation of the lower flat die 403, the lower granulation holes are connected or staggered with the upper granulation holes in a one-to-one correspondence; the driving shaft 8 rotates through the center 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.

[0031] It should be further explained that the driving structure 1 includes a gear ring 1 404 located at the bottom of the lower flat die 403, and a gear 1 driven to rotate by a motor 1 is set on one side of the lower flat die 403; the lower flat die 403 is driven to rotate by the engagement of the gear 1 and the gear ring 1 404.

[0032] By fixing the upper flat die 402 and rotating the lower flat die 403, the connection or staggering of the lower granulation holes and the upper granulation holes can be adjusted. The connecting space between the two is the corresponding granulation size. If there is no connecting space, the double-layer flat die assembly 4 stops granulation.

[0033] like Figure 5 As 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; 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 driving structure 2, and the outer ring die 502 is provided with outer granulation holes; through the rotation of the outer ring die 502, the outer granulation holes are connected or staggered with the inner granulation holes in a one-to-one correspondence.

[0034] It should be further explained that the driving structure 2 includes a gear ring 2 503 located on the top of the outer ring mold 502; a gear 2 driven to rotate by a motor 2 is set on one side of the gear ring 2 503; and the outer ring mold 502 is driven to rotate by the engagement of the gear 2 and the gear ring 2 503.

[0035] It should be further explained that an annular slide rail 504 is provided on the partition frame 401 ; the bottom of the outer ring mold 502 is slidably connected to the annular slide rail 504 .

[0036] By fixing the inner ring die 501 and rotating the outer ring die 502, the outer granulation holes and the inner granulation holes can be adjusted to be connected or staggered one by one. The connecting space between the two is the corresponding granulation size. If there is no connecting space, the double-layer ring die assembly 5 stops granulation.

[0037] like Figure 6-Figure 8 As shown, the bidirectional rolling assembly 6 includes a rotating sleeve 603 rotatably connected to the top of the upper cavity 104; a rotating frame 601 is provided at the bottom of the rotating sleeve 603, and a support rod 604 is provided inside; the middle part of the rotating frame 601 is hollowed out, and a storage seat 605 connected to the support rod 604 is provided at the hollow part; the outside of the storage seat 605 is driven by the driving structure to slide in and out of the lifting sleeve 606 of the rotating sleeve 603, and the bottom of the storage seat 605 is connected to the driving shaft 8.

[0038] It should be further explained that the driving structure three includes a screw one driven to rotate by a motor three; the screw one is rotatably arranged in the rotating sleeve 603; a lifting seat is set on the top of the lifting sleeve 606; the lifting seat is connected to the screw one through a thread, driving the lifting sleeve 606 in and out of the rotating sleeve 603.

[0039] It should be further explained that the side rolling rollers 602 are rotatably set on both sides of the rotating frame 601; the bottom rolling roller 607 is rotatably set on the storage seat 605, and is moved to the outside of the storage seat 605 by flipping the whole body, and the whole body is changed from a vertical state to a horizontal state, and the position is staggered with the side rolling rollers 602.

[0040] When performing side rolling alone, the lifting sleeve 606 covers the storage seat 605. The bottom rolling roller 607 is located on the storage seat 605. The side rolling roller 602 rotates and moves along the inner wall of the inner ring die 501, rolling the biomass feedstock and forcing it through the connecting space between the outer and inner granulation holes. When performing bottom rolling alone or performing side and bottom rolling simultaneously, the lifting sleeve 606 rises to the rotating sleeve 603, exposing the storage seat 605. The bottom rolling roller 607 is removed and can rotate synchronously with the rotating frame 601, rotating and moving along the bottom wall of the upper flat die 402, rolling the biomass feedstock and forcing it through the connecting space between the lower and upper granulation holes.

[0041] It should be further explained 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 lift 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.

[0042] It should be further explained that a mounting groove is provided on the side wall of the receiving opening 608; a lead screw 2 613 driven to rotate by a motor 4 is provided in the mounting groove; a lifting block 610 which is threadedly connected and moves up and down is provided on the lead screw 2 613; a motor 5 611 is provided on the lifting block 610; and a mounting frame 612 is connected to the main shaft of the motor 5 611 to realize up and down movement and origin rotation.

[0043] It should be further explained that the lifting block 610 is slidably connected to the groove wall of the installation groove, and a telescopic film is provided at the upper and lower ends to seal the installation groove to prevent biomass raw materials from entering the installation groove.

[0044] It should be further explained that an annular structure is provided on the mounting frame 612; the middle part of the bidirectional telescopic drive member 609 is set through the annular 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 interior of the bottom rolling roller 607 and is rotatably connected to the bottom rolling roller 607.

[0045] When bottom rolling or side rolling is performed separately or simultaneously, the lifting sleeve 606 rises to the rotating sleeve 603, exposing the storage seat 605. The mounting frame 612 moves downward and rotates at the origin to remove the two sets of bottom rolling rollers 607. The bottom rolling rollers 607 on both sides are driven by a double-headed bidirectional cylinder to move, and the bottom rolling rollers 607 can be used for bottom rolling. The range and position of the rolling can be adjusted. At this time, the side rolling rollers 602 still rotate and move along the inner wall of the inner ring die 501, which can effectively dredge and push the biomass raw materials and accelerate the bottom granulation. Of course, the side rolling rollers 602 can also be lifted and removed to directly perform bottom granulation separately.

[0046] Embodiment 2: This embodiment proposes a biomass pellet machine. Based on the embodiment 1, the structures of the dredging and scraping component 1 7 and the dredging and scraping component 2 10 are further disclosed.

[0047] like Figure 9 As shown, the dredging scraper assembly 7 includes a mounting ring 701 driven by a driving structure 4 to rotate coaxially on the outer periphery of the outer ring mold 502; a plurality of dredging scraper seats 703 are provided on the mounting ring 701.

[0048] It should be further explained that the drive structure four includes a gear ring three 702 located on the outer periphery of the mounting ring 701; a gear three driven to rotate by a motor six is provided on the outer side of the gear ring three 702; and the mounting ring 701 is driven to rotate by the engagement of the gear three and the gear ring three 702.

[0049] It should be further explained that a scraper frame 704 is provided on the dredging scraper seat 703, and a dredging nozzle 705 connected to a micro air compressor is also provided.

[0050] It should be further explained that the micro air compressor is arranged on the dredging scraper seat 703.

[0051] During side granulation, the rotation of mounting ring 701 drives scraper frame 1 704 to rotate synchronously. During rotation, scraper frame 1 704 scrapes the biomass particles flowing out of the outer granulation holes. The length of the particles is controlled by the scraping speed of scraper frame 1 704, while the coarseness of the particles is controlled by the space connecting the outer and inner granulation holes. In the event of blockage, high-pressure gas is sprayed from unblocking nozzle 1 705 to clear the space connecting the outer and inner granulation holes.

[0052] It should be further explained that the mounting ring 701 is located at the top of the outer ring mold 502 and the 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.

[0053] like Figure 10-11 As shown, the dredging scraper assembly 2 10 includes 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.

[0054] It should be further explained that the driving structure five includes a gear ring four 1005 located on the outer periphery of the movable sleeve 1001; a gear four driven to rotate by a motor seven is provided on the outer side of the gear ring four 1005; and the movable sleeve 1001 is driven to rotate by the engagement of the gear four and the gear ring four 1005.

[0055] It should be further explained that a second scraper frame 1002 is provided on the second dredging scraper seat 1003, and a second dredging nozzle 1004 connected to the second micro air compressor is also provided.

[0056] It should be further explained that the second micro air compressor is arranged on the second dredging scraper seat 1003.

[0057] During bottom granulation, the movable sleeve 1001 rotates, driving the second scraper frame 1002 to rotate synchronously. During rotation, the second scraper frame 1002 scrapes the biomass particles flowing out of the lower granulation hole. The length of the particles is controlled by the scraping speed of the second scraper frame 1002, while the coarseness of the particles is controlled by the space connecting the lower and upper granulation holes. In the event of blockage, the second unblocking nozzle 1004 sprays high-pressure gas to clear the space connecting the lower and upper granulation holes.

[0058] It should be further explained that the material guide platform 9 is provided with a channel for the drive shaft 8 to rotate through; the movable sleeve 1001 is rotatably provided on the top of the channel; and the drive structure five is located in the channel.

[0059] Example 3: This example proposes a method for producing biomass pellets, using the biomass pellet machines proposed in Example 1 and Example 2. The specific method is as follows:

[0060] S1. Feeding biomass raw materials into the particle manufacturing chamber from the feed port 101;

[0061] S2, select side granulation alone, bottom granulation alone or side and bottom simultaneous granulation;

[0062] The side is granulated separately, with a double-layer ring die assembly 5: the lower granulation holes and the upper granulation holes are staggered in a 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 drive shaft 8 drives the storage seat 605 to rotate; at this time, the lifting sleeve 606 covers the storage seat 605; the side rolling roller 602 rotates and moves along the inner wall of the inner ring die 501, rolling the biomass raw material so that it passes through the communication space between the outer granulation holes and the inner granulation holes;

[0063] The bottom is granulated separately, and the double-layer flat die assembly 4 works: the outer granulation holes and the inner granulation holes are staggered in a one-to-one correspondence, and the side granulation is closed; by rotating the lower flat die 403, the communication space between the lower granulation hole and the upper granulation hole is adjusted to match the granulation size; the drive shaft 8 drives the storage seat 605 to rotate; at this time, the lifting sleeve 606 rises to expose the storage seat 605; the bottom rolling roller 607 is moved out, and it can rotate synchronously with the rotating frame 601 and move to the horizontal position to roll the biomass raw material so that it passes through the communication space between the lower granulation hole and the upper granulation hole;

[0064] Synchronous granulation at the side and bottom, 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 coarseness or different coarseness;

[0065] S3, scraping and shaping the granules;

[0066] The side is granulated separately, and the dredging scraper assembly 7 works: the installation ring 701 rotates, driving the scraper frame 704 to rotate synchronously; during the rotation, the scraper frame 704 scrapes the biomass particles flowing out of the outer granulation hole; the length of the particles is controlled by the scraping speed of the scraper frame 704; in the event of blockage, the dredging nozzle 705 sprays high-pressure gas to dredge the connection space between the outer granulation hole and the inner granulation hole;

[0067] The bottom is granulated separately, and the dredging scraper assembly 10 works: the movable sleeve 1001 rotates, driving the scraper frame 1002 to rotate synchronously; during the rotation, the scraper frame 1002 scrapes the biomass particles flowing out of the lower granulation hole; the length of the particles is controlled by the scraping speed of the scraper frame 1002; in case of blockage, the dredging nozzle 1004 sprays high-pressure gas to dredge the connection space between the lower granulation hole and the upper granulation hole;

[0068] The side and bottom granulation are performed synchronously, and the dredging scraper component 1 7 and the dredging scraper component 2 10 work simultaneously: the side granulation and the bottom granulation can be set to the same length or different lengths.

[0069] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A biomass pellet machine, comprising a transmission base (2), a driving unit (3) located on the transmission base (2), and a pellet production unit (1), characterized in that: The shell of the particle production part (1) is provided with a feed port (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 forms a particle production chamber communicating with the feed port (101) by covering the double-layer flat die assembly (4); the outer periphery of the double-layer ring die assembly (5) is provided as a first discharge chamber; the first discharge chamber The first discharge port (102) is connected, and a dredging scraper assembly (7) for acting on the double-layer ring die assembly (5) is provided in the first discharge chamber; a guide platform (9) for the driving shaft (8) to rotate through is provided in the lower cavity (105), the outer periphery of the guide platform (9) is provided as a second discharge chamber connected to the second discharge port (103), and a dredging scraper assembly (10) for acting on the double-layer flat die assembly (4) is provided on the top of the guide platform (9); the bidirectional rolling assembly (6) is driven by the driving shaft (8) and is rotatably provided in the particle manufacturing chamber; The double-layer flat die assembly (4) and the double-layer ring die assembly (5) are both configured as a double-layer structure that rotates relative to each other; The bidirectional rolling assembly (6) includes a rotating sleeve (603) rotatably connected to the top of the upper cavity (104); a rotating frame (601) is provided at the bottom of the rotating sleeve (603), and a support rod (604) is provided inside the rotating frame (601); the middle portion of the rotating frame (601) is hollowed out, and a storage seat (605) connected to the support rod (604) is provided at the hollowed-out portion; a lifting sleeve (606) is provided on the outside of the storage seat (605) and is driven by a driving structure to slide in and out of the rotating sleeve (603); the bottom of the storage seat (605) is connected to a driving shaft (8); the side rolling rollers (602) are rotatably provided 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 turning over as a whole, and the whole is transformed from a vertical state to a horizontal state, and the position of the bottom rolling roller (607) is staggered with the side rolling roller (602); A storage opening (608) is provided on the storage seat (605); a driving structure 3 is provided on the side wall of the storage opening (608); the mounting frame (612) is driven by the driving structure 3 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).

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 provided on the upper flat die (402); a partition frame (401) connected to the inner wall of the shell 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 to rotate in situ by a driving structure, and lower granulation holes are provided 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 an inner granulation hole, 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 outer granulation holes are provided on the outer ring die (502); 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 3, characterized in that: The dredging scraper assembly (7) includes a mounting ring (701) driven by a driving structure (4) to rotate coaxially on the outer periphery of the outer ring mold (502); a plurality of dredging scraper seats (703) are provided on the mounting ring (701); A scraper frame (704) is provided on the dredging scraper seat (703), and a dredging nozzle (705) connected to a micro air compressor is also provided.

5. The biomass pellet machine according to claim 4, characterized in that: The mounting ring (701) is located on 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).

6. The biomass pellet machine according to claim 2, characterized in that: The dredging scraper assembly 2 (10) includes a movable sleeve (1001) rotatably sleeved on the drive 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 provided on the second dredging scraper seat (1003), and a second dredging nozzle (1004) connected to the second micro air compressor is also provided.

7. The biomass pellet machine according to claim 6, characterized in that: The material guide table (9) is provided with a passage for the drive shaft (8) to rotate through; 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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