A biomass fuel pellet processing apparatus

Abstract

The present application relates to the technical field of particle processing, and discloses a biomass fuel particle processing device, which comprises a casing, a fixed disc is fixedly arranged at the top of the casing, a central frame is rotatably arranged on the fixed disc, a plurality of compression rollers are rotatably arranged on the central frame, a ring mould is arranged on the fixed disc, a plurality of separation blocks are arranged on the outer side of the ring mould, a plurality of knife sheaths are connected to the outer side of the central frame, a cutting knife is slidably arranged on the knife sheath, a trigger block is slidably arranged on the side of the knife sheath, a knife outlet assembly is arranged in the knife sheath, when the trigger block is in contact with the separation block, the knife outlet assembly drives the cutting knife to quickly extend and cut the particle strip, an energy storage mechanism is arranged in the knife outlet assembly, which is used for increasing the instantaneous shearing force of the cutting knife. In the present application, the cutting knife no longer cuts at a constant speed when it extends, the instantaneous shearing force can be increased through energy storage and release, the particle cutting surface is more smooth, the qualified rate of the biomass fuel particle product is further improved, the generation of debris is reduced, and the processing cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of particle processing, in particular, to a biomass fuel particle processing device. BACKGROUND

[0002] In the related art, biomass combustion particles are block or granular fuels made of agricultural waste or forestry residues through physical compression, and the core component is biomass energy, which is formed by lignin softening and bonding under high temperature and high pressure to form a high-density, low-moisture solid fuel. In the biomass fuel particle industry, due to fierce market competition, cost control has always been the key.

[0003] In the prior art, when biomass fuel particles are extruded, a pressure roller and a ring die are usually selected to work together: after the raw material enters the particle machine, the pressure roller rotates under the driving of the power to extrude the material into the die hole of the ring die, and the high temperature generated by friction softens the lignin to bond the material to form a dense particle. Usually, when the particles are extruded, the scraper moving opposite to the ring die will cut off the particle strip. However, the existing scraper does not cut off the particle strip when it contacts the particle strip, and the uniform relative motion of the scraper and the ring die causes the particle strip to be broken horizontally rather than accurately cut. Moreover, the particle debris continuously accumulates on the surface of the scraper, forming a paste layer, which directly reduces the sharpness of the blade, causing the end face of the finished product to be severely damaged, and a large amount of particle debris is generated when breaking, which reduces the quality of the finished product and increases the processing cost. At the same time, the rough broken surface of the particle is easy to break during transportation; therefore, it does not meet the existing needs, and for this reason, we propose a biomass fuel particle processing device. SUMMARY

[0004] The present application provides a biomass fuel particle processing device, which can automatically switch the state of the scraper, actively cut the particle strip, and retract and hide to maintain sharpness when not cutting, thereby improving the shearing force on the particle strip, improving the quality of the finished product, reducing the processing cost, and solving the problem that the existing scraper does not cut the particle strip when it contacts the particle strip, causing the finished product to be severely damaged, generating a large amount of particle debris when breaking, reducing the quality of the finished product, and increasing the processing cost. At the same time, the rough broken surface of the particle is easy to break during transportation.

[0005] In order to achieve the above object, the biomass fuel particle processing device is provided, which comprises a casing, a fixed disc is fixedly arranged on the top of the casing, a central frame is rotatably arranged on the fixed disc, a plurality of compression rollers are rotatably arranged on the central frame, a ring mold is arranged on the fixed disc, a plurality of separation blocks are arranged in an annular array on the outer side of the ring mold, a plurality of knife sheaths are connected to the outer side of the central frame, a cutting knife for cutting the particle strip is slidably arranged on the knife sheath, a trigger block is slidably arranged on the side of the knife sheath, an ejection assembly is arranged in the knife sheath, when the trigger block is in contact with the separation block, the ejection assembly drives the cutting knife to quickly extend and cut the particle strip, an energy storage mechanism is arranged in the ejection assembly, which is used for increasing the instantaneous shearing force of the cutting knife;

[0006] The ejection assembly adopts scheme A, the ejection assembly comprises a first cavity and a second cavity which are arranged in the interior of the knife sheath, a drive piston is slidably arranged in the interior of the first cavity, a beveled column is connected to the top of the drive piston, the bevel of the beveled column is in contact with the trigger block, an ejection spring is arranged between the bottom of the drive piston and the first cavity, an ejection piston is connected to the end of the cutting knife, the ejection piston is slidably arranged in the second cavity, and the second cavity is in communication with the first cavity;

[0007] A beveled block is arranged on the side of the trigger block, a gas receiving seat is connected to the side of the second cavity, one side of the gas receiving seat is the first cavity, the other side of the gas receiving seat is connected with a gas pipe, the other end of the gas pipe is connected with the second cavity, a valve plate is slidably arranged in the middle of the gas receiving seat, an air hole is arranged on the valve plate, a pressure spring is arranged on the bottom of the valve plate, the beveled block intermittently contacts the valve plate, when the beveled block contacts the valve plate, the pressure spring is compressed, and the air hole is in communication with the gas pipe and the first cavity;

[0008] Alternatively, the ejection assembly adopts scheme B, the ejection assembly comprises a rotating sleeve and a rotating shaft which are rotatably arranged in the interior of the knife sheath, the rotating sleeve is integrally provided with a contact plate, the contact plate is in contact with the trigger block, a first bevel gear is fixedly arranged on the end of the rotating sleeve, a second bevel gear is fixedly arranged on the rotating shaft, the second bevel gear is in mesh with the first bevel gear, a transmission gear is symmetrically arranged on the rotating shaft, a rack plate is arranged on the cutting knife, and the transmission gear is in mesh with the rack plate;

[0009] The cutting knife top is fixedly installed with a sleeve plate, the rack plate bottom is fixedly installed with a moving plate, the sleeve plate interior is provided with an empty slot, the moving plate and the empty slot are slidingly inserted, a reset spring is installed between the moving plate and the empty slot, the knife sheath inner wall is slidingly installed with a blocking block, the blocking block is provided with an inclined surface at one end and a sliding block with a blocking spring at the other end, the sleeve plate two sides are fixedly installed with fixed columns, and the blocking block and the fixed columns intermittently abut.

[0010] Optionally, a reduction motor is installed at the bottom of the shell, the output shaft of the reduction motor is connected with the center frame, a driving motor is installed on the center frame, the driving motor is in transmission connection with the compression roller, a connecting arm is connected between the center frame and the knife sheath, a dust cover is fixedly installed on the fixed disc, a feeding port is installed on one side of the dust cover, and a discharging port is arranged on the other side of the dust cover.

[0011] Optionally, a dustproof plate is installed on one side of the ring mold adjacent to the knife sheath, the dustproof plate is slidingly attached to the outer wall of the ring mold, and a push plate is installed at the end of the knife sheath away from the cutting knife, for pushing the cut particles.

[0012] Optionally, a screening ring is arranged outside the fixed disc, the screening ring is provided as an annular track with a plurality of screen holes, a spiral elastic slide is installed below the screening ring, the width of the spiral elastic slide corresponds to the screening ring, flexible cloth covers are installed on the two sides of the spiral elastic slide, the top end of the flexible cloth cover is fixedly connected with the bottom of the screening ring, a discharging port is connected to the end of the spiral elastic slide, an elastic cloth is installed at the joint of the spiral elastic slide and the discharging port, and the top end of the elastic cloth is connected with the bottom of the screening ring.

[0013] Optionally, a rotating disc is rotatably installed at the top of the shell, a beating wheel is rotatably installed on the side of the rotating disc, a fixed rod is fixedly installed on the side of the fixed disc, a vibrating block is fixedly installed at the bottom of the screening ring, a knocking hammer is rotatably installed on the fixed rod and in contact with the vibrating block, a torsional spring for force accumulation and reset is installed on the fixed rod and engaged with the knocking hammer and the fixed disc.

[0014] Optionally, a plurality of mold forming holes are formed in the ring mold, the mold forming holes are located between two adjacent partition blocks, and the mold forming holes are located in the middle of the ring mold.

[0015] Through the above technical solution, the biomass fuel pellet processing device provided in this disclosure, when in use: by setting a separator block on the outside of the ring die, and setting a cutting blade and a blade sheath, the blade sheath and the separator block rotate relative to each other when the central frame rotates, so that the trigger block periodically contacts the separator block. Utilizing the transmission of the blade extension assembly, the cutting blade is automatically extended to perform cutting. Compared with traditional technology, the cutting blade in this solution is normally hidden in the blade sheath, so the blade tip is not easily clogged by debris, thus maintaining its sharpness. Furthermore, when the cutting blade extends, it no longer cuts at a uniform speed; through energy storage and release, it can increase the instantaneous shearing force, better cut the pellets, and make the pellet cut surface smoother, further improving the finished product qualification rate of biomass fuel pellets, reducing the generation of debris, and lowering processing costs.

[0016] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional exploded structure of the present invention.

[0020] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 4 This is a partial top view of the structure of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the cutting blade of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of a blade delivery assembly according to the present invention.

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of a cutting tool assembly according to the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of another blade delivery component according to the present invention.

[0026] Figure 9 This is a schematic diagram of a cross-sectional structure of another blade delivery component according to the present invention.

[0027] Figure 10 This is a partial front view cross-sectional structural schematic diagram of the present invention.

[0028] Figure 11 For the present invention Figure 10 Enlarged view of point A.

[0029] Figure 12 This is a schematic diagram of the three-dimensional structure of the striking hammer of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 10, machine casing; 20, geared motor; 30, feed inlet; 40, dust cover; 50, discharge outlet; 60, slag outlet; 110, ring die; 111, die forming hole; 112, separator block; 120, center frame; 130, pressure roller; 140, drive motor; 150, fixed plate; 160, screening ring; 210, cutting blade; 220, blade sheath; 230, push plate; 240, dust cover; 250, connecting arm; 260, trigger block; 310, inclined column; 320, drive piston; 330, first chamber; 340, blade release spring; 350, second chamber; 360, blade release piston; 370, air pipe; 311, abutment. 321. Touch plate; 331. Rotating sleeve; 341. First bevel gear; 351. Second bevel gear; 361. Rotating shaft; 371. Transmission gear; 410. Rack plate; 420. Air inlet; 430. Valve plate; 440. Vent hole; 450. Pressure spring; 411. Inclined block; 421. Moving plate; 431. Slot; 441. Return spring; 451. Fixed column; 461. Blocking block; 471. Blocking spring; 510. Turntable; 520. Striking wheel; 530. Fixed rod; 540. Striking hammer; 550. Torsion spring; 560. Vibrating block; 610. Spiral elastic slide; 620. Elastic cloth; 630. Flexible cloth cover. Detailed Implementation

[0031] To make the above-described objects, features, and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this disclosure. However, this disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this disclosure. Therefore, this disclosure is not limited to the specific embodiments disclosed below.

[0032] In the description of the present disclosure, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. The terms "first", "second" used are for distinguishing one element from another element, and do not have sequential or important meanings. In addition, the following description, when referring to the drawings, the same reference numerals in different drawings represent the same or similar elements, and the present disclosure does not make redundant descriptions here.

[0033] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0034] According to some embodiments of the present disclosure, a biomass fuel particle processing device is provided, as shown in Figures 1-10 the biomass fuel particle processing device includes a housing 10, a fixed disc 150 is fixedly arranged at the top of the housing 10, a center frame 120 is rotatably installed on the fixed disc 150, a plurality of pressing rollers 130 are rotatably installed on the center frame 120, a ring mold 110 is arranged on the fixed disc 150, a plurality of partition blocks 112 are arranged in an annular array on the outer side of the ring mold 110, a plurality of knife sheaths 220 are connected to the outer side of the center frame 120, a cutting knife 210 for cutting the particle strip is slidably installed on the knife sheath 220, a trigger block 260 is slidably installed on the side of the knife sheath 220, a knife assembly is arranged in the knife sheath 220, when the trigger block 260 abuts against the partition block 112, the knife assembly drives the cutting knife 210 to quickly extend and cut the particle strip, an energy storage mechanism is also arranged in the knife assembly, for increasing the instantaneous shearing force of the cutting knife 210.

[0035] During the rotation of the sheath 220, the cutting knife 210 has two states. In the first state, the sheath 220 is located between the two partition blocks 112, at this time, the trigger block 260 is relaxed and does not contact the partition block 112, so that the cutting knife 210 is retracted in the sheath 220 in the first state. In the second state, the trigger block 260 is in contact with one of the partition blocks 112, at this time, the knife assembly is triggered, so that the cutting knife 210 is extended to cut the particles in the second state.

[0036] In this way, the cutting knife 210 is hidden in the sheath 220 in the normal state, so that the blade end is not easy to be covered by the debris, thereby keeping sharp, making the particle cutting surface more flat, improving the qualified rate of biomass fuel particle products, reducing the generation of debris, and reducing the processing cost.

[0037] In addition, in combination with the prior art, the speed reducer motor 20 is installed at the bottom of the shell 10, the output shaft of the speed reducer motor 20 is connected with the center frame 120, the driving motor 140 is installed on the center frame 120, the driving motor 140 is in transmission connection with the compression roller 130, the dust cover 40 is fixedly installed on the fixed disc 150, the dust cover 40 is installed on one side of the dust cover 40, and the dust cover 40 is provided with the discharge port 50 on the other side. Different from the prior art, the center frame 120 is connected with the sheath 220 through the connecting arm 250.

[0038] Further, the dust plate 240 is installed on one side of the sheath 220 adjacent to the ring die 110, the dust plate 240 is in sliding fit with the outer wall of the ring die 110, and the push plate 230 is installed on the end of the sheath 220 away from the cutting knife 210, for pushing the cut particles. The dust plate 240 is in sliding fit with the outer wall of the ring die 110, and blocks the debris from entering the inside of the sheath 220; the push plate 230 pushes the finished product particles away after cutting, preventing accumulation and blockage.

[0039] Specifically, as shown in Figure 3 A plurality of mold holes 111 are formed in the ring die 110, the mold holes 111 are located between the two adjacent partition blocks 112, and the mold holes 111 are located in the middle of the ring die 110. The mold holes 111 avoid the positions of the dust plate 240 and the trigger block 260.

[0040] By the technical scheme, the biomass fuel particle processing device provided by the present application is used, the separation block 112 is arranged outside the ring mold 110, the cutting knife 210 and the sheath 220 are arranged, the sheath 220 rotates relative to the separation block 112 when the center frame 120 rotates, the trigger block 260 is periodically in contact with the separation block 112, the transmission of the cutting assembly is used to automatically cut the cutting knife 210, compared with the prior art, the cutting knife 210 in the present application is hidden in the sheath 220 in a normal state, so that the cutting end is not easy to be covered by the crushed material, thereby keeping sharp, and the cutting knife 210 no longer cuts at a constant speed when it is stretched out, the instantaneous shearing force is increased through energy storage and release, the particles are better cut off, the particle cutting surface is more flat, the biomass fuel particle product qualification rate is further improved, the generation of the crushed material is reduced, and the processing cost is reduced.

[0041] It should be noted that the cutting knife 210 and the sheath 220 are both arranged in an arc shape, the speed reducer motor 20 and the driving motor 140 are all existing products, the output shaft of the driving motor 140 is provided with a gear, and the plurality of compression rollers 130 are also respectively provided with gears, and the driving motor 140 is connected with the compression rollers 130 through the gears. In addition, a belt can also be selected for transmission. The compression roller 130 is an existing technology, and will not be described here.

[0042] In some embodiments, the cutting assembly is arranged inside the sheath 220, and when the trigger block 260 is in contact with the separation block 112, the cutting assembly drives the cutting knife 210 to quickly stretch out and cut the particle strip. In the implementation, as shown in Figure 6 The cutting assembly includes a first chamber 330 and a second chamber 350 arranged inside the sheath 220, a driving piston 320 is slidingly arranged in the first chamber 330, a slope column 310 is connected to the top of the driving piston 320, the slope of the slope column 310 is in contact with the trigger block 260, a cutting spring 340 is arranged between the bottom of the driving piston 320 and the first chamber 330, a cutting piston 360 is connected to the end of the cutting knife 210, the cutting piston 360 is slidingly arranged in the second chamber 350, and the second chamber 350 is in communication with the first chamber 330.

[0043] When the trigger block 260 is pressed, the trigger block 260 moves to press the slope column 310, so that the driving piston 320 moves downward, the gas in the first chamber 330 is compressed, the gas enters the second chamber 350, thereby pushing the cutting piston 360 to move, and the action that the cutting knife 210 stretches out of the sheath 220 is realized.

[0044] In the embodiment, in order to solve the problems of lack of instantaneous shearing force, burrs and cracks on the particle end surface due to uneven force, and significant increase of roughness, see Figure 7The energy storage mechanism is provided with an inclined block 450 on the side of the trigger block 260, and a gas receiving seat 410 connected to the side of the second chamber 350. One side of the gas receiving seat 410 is the first chamber 330, and the other side of the gas receiving seat 410 is connected to a gas pipe 370, the other end of which is connected to the second chamber 350. A valve plate 420 is slidingly installed in the middle of the gas receiving seat 410, and a gas passage 430 is formed in the valve plate 420. A pressure spring 440 is installed at the bottom of the valve plate 420.

[0045] The inclined block 450 intermittently contacts the valve plate 420. When the inclined block 450 contacts the valve plate 420, the pressure spring 440 is compressed, and the gas passage 430 is in communication with the gas pipe 370 and the first chamber 330.

[0046] In order to increase the instantaneous shear force, the valve plate 420 is provided at the gas receiving seat 410. When the trigger block 260 is not triggered and in the early stage of triggering, the inclined block 450 on the trigger block 260 does not contact the top of the valve plate 420, so the valve plate 420 is lifted by the pressure spring 440, and the solid part of the valve plate 420 blocks the gas hole of the gas receiving seat 410, so that the gas cannot enter the second chamber 350 and continue to be compressed. In the late stage of triggering the trigger block 260, the inclined block 450 contacts the top of the valve plate 420, so that the valve plate 420 moves downward, the gas passage 430 is in communication with both sides, so that the compressed gas quickly enters the second chamber 350, and the cutting knife 210 is more quickly sheathed.

[0047] In other embodiments, a knife sheath 220 is provided inside the knife sheath 220. When the trigger block 260 contacts the partition block 112, the knife sheath 220 drives the cutting knife 210 to quickly extend and cut the particle strip. Figure 8 The knife sheath 220 includes a rotating sleeve 321 and a rotating shaft 351 rotatingly installed inside the knife sheath 220. The rotating sleeve 321 is integrally provided with a contact plate 311, which contacts the trigger block 260. A first bevel gear 331 is fixedly installed at the end of the rotating sleeve 321. A second bevel gear 341 is fixedly installed on the rotating shaft 351 and engages with the first bevel gear 331. A transmission gear 361 is symmetrically installed on the rotating shaft 351. A rack plate 371 is provided on the cutting knife 210, and the transmission gear 361 engages with the rack plate 371.

[0048] Specifically, a torsional spring is installed at the end of the rotating sleeve 321 away from the first bevel gear 331, and the other end of the torsional spring is connected to the inner wall of the knife sheath 220 for resetting.

[0049] When the trigger block 260 is extruded, the trigger block 260 extrudes the contact plate 311, causing the rotating sleeve 321 to rotate, so that the first bevel gear 331 drives the second bevel gear 341 to rotate, causing the rack plate 371 to move, thereby achieving automatic sheathing of the cutting knife 210.

[0050] In the embodiment, in order to solve the problem of lack of instantaneous shearing force, burrs and cracks are formed on the end face of the particle due to uneven force, and the roughness is significantly increased, see Figure 9 The energy storage mechanism is provided as follows: the cutting knife 210 is fixedly installed at the top of the sleeve plate 421, the rack plate 371 is fixedly installed at the bottom of the moving plate 411, the sleeve plate 421 is internally provided with an empty slot 431, the moving plate 411 is slidingly inserted into the empty slot 431, the reset spring 441 is installed between the moving plate 411 and the empty slot 431, the inner wall of the sheath 220 is slidingly installed with the blocking block 461, the blocking block 461 is provided with an inclined surface at one end and a sliding block provided with a blocking spring 471 at the other end, the sleeve plate 421 is fixedly installed with the fixed column 451 at both sides, and the blocking block 461 intermittently abuts against the fixed column 451.

[0051] The inner wall of the sheath 220 is provided with a sliding groove, the blocking block 461 is slidingly installed in the sliding groove, the blocking spring 471 is also installed in the sliding groove, the tip of the inclined surface of the blocking block 461 is provided with a rounded corner, the fixed column 451 is provided with a high-temperature-resistant rubber column with a round top at the end, and the fixed column 451 breaks through the blocking block 461 after abutting against the blocking block 461 to a certain extent, so that the cutting knife 210 is instantly drawn from the sheath 220 to cut the formed particles. When resetting, the blocking block 461 naturally retracts due to the abutment of the fixed column 451 and the inclined surface of the blocking block 461, so as not to block the resetting.

[0052] In order to better cut the particles, the moving plate 411 and the sleeve plate 421 are added between the rack plate 371 and the cutting knife 210, in the early stage of operation of the knife assembly in the embodiment, the fixed column 451 is blocked by the blocking block 461, so that the moving plate 411 moves towards the sleeve plate 421, but the sleeve plate 421 does not move, and the energy is stored in the early stage of stroke, in the late stage of operation of the knife assembly, the fixed column 451 breaks through the blocking block 461, the elastic potential energy is released, so that the cutting knife 210 is drawn from the sheath 220 more quickly, thereby improving the instantaneous shearing force.

[0053] The instantaneous shearing force of the cutting knife 210 is significantly improved, so that the biomass combustion particles are more uniformly stressed, the incision is smooth, the debris dust generated by cutting is reduced, the product quality is improved, and the processing cost is reduced.

[0054] In some embodiments of the present disclosure, reference is made to Figures 10-12As shown in the figure, the fixed disc 150 is externally bolted with a screening ring 160, which is arranged as an annular track with a plurality of screen holes, and a spiral elastic chute 610 is installed below the screening ring 160, the width of the spiral elastic chute 610 corresponds to the screening ring 160, flexible cloth covers 630 are installed on both sides of the spiral elastic chute 610, the top end of the flexible cloth cover 630 is fixedly connected with the bottom of the screening ring 160, the end of the spiral elastic chute 610 is connected with a slag outlet 60, and an elastic cloth 620 is installed at the joint of the spiral elastic chute 610 and the slag outlet 60, and the top end of the elastic cloth 620 is connected with the bottom of the screening ring 160.

[0055] The top of the shell 10 is rotatably installed with a rotating disc 510, the side of the rotating disc 510 is rotatably installed with a beating wheel 520, the side of the fixed disc 150 is fixedly installed with a fixed rod 530, the bottom of the screening ring 160 is fixedly installed with a vibrating block 560, the fixed rod 530 is rotatably installed with a knocking hammer 540, the knocking hammer 540 is in contact with the vibrating block 560, and the fixed rod 530 is installed with a torsional spring 550 for force storage and reset, and the two ends of the torsional spring 550 are respectively clamped with the knocking hammer 540 and the fixed disc 150.

[0056] Specifically, the torsional spring 550 drives the knocking hammer 540 to periodically hit the screening ring 160 after storing force, so as to prevent the screen holes from being blocked.

[0057] Further, the elastic cloth 620 is arranged as a rubber belt or other heat-resistant elastic cloth, which is used to increase the shaking of the spiral elastic chute 610. The flexible cloth cover 630 is arranged as a dustproof elastic cloth or plastic cloth, which can shake with the spiral elastic chute 610 and cover the dust.

[0058] Through the above technical scheme, the biomass fuel particle processing device provided by the present disclosure can reduce the rotating speed of the speed reducer 20 when the speed reducer 20 rotates, and the rotating disc 510 will rotate with the speed reducer 20. When the beating wheel 520 on the rotating disc 510 is in contact with the knocking hammer 540 on the fixed disc 150, the torsional spring 550 will store force. When the beating wheel 520 and the knocking hammer 540 are out of contact, the torsional spring 550 releases the stored force to drive the knocking hammer 540 to hit the vibrating block 560. The vibrating block 560 transmits the vibration energy to the screening ring 160 through rigid connection, so that the screening ring 160 produces high-frequency vibration, and the debris and powder on the screening ring 160 fall onto the spiral elastic chute 610 and slide out of the slag outlet 60. Therefore, the produced debris is preliminarily screened in the extrusion stage, the subsequent processing cost is reduced, the cost is further controlled, and the quality of the finished product after the biomass fuel particle extrusion and cutting is improved.

[0059] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept range of the present disclosure, various simple modifications can be made to the technical scheme of the present disclosure, and these simple modifications all belong to the protection range of the present disclosure.

[0060] It should also be noted that various technical features described in the above detailed description can be implemented in any suitable combination, and that the disclosure is not limited to any particular combination described.

[0061] Furthermore, various different embodiments of the disclosure can be combined in any suitable manner, and the same should be considered to be disclosed by the disclosure, as long as it does not violate the spirit of the disclosure.

Claims

1. A biomass fuel pellet processing device, comprising a housing (10), a fixed plate (150) fixedly disposed on the top of the housing (10), a central frame (120) rotatably mounted on the fixed plate (150), a plurality of pressure rollers (130) rotatably mounted on the central frame (120), and a ring die (110) disposed on the fixed plate (150), characterized in that: The outer annular array of the ring die (110) is provided with a plurality of partition blocks (112), the outer side of the center frame (120) is connected with a plurality of knife sheaths (220), the cutting knife (210) for cutting the particle strip is slidingly installed on the knife sheath (220), the trigger block (260) is slidingly installed on the side of the knife sheath (220), the knife sheath (220) is internally provided with a knife outlet assembly, when the trigger block (260) is in contact with the partition block (112), the knife outlet assembly drives the cutting knife (210) to quickly extend and cut the particle strip, and an energy storage mechanism is arranged in the knife outlet assembly, for increasing the instantaneous shearing force of the cutting knife (210); The knife outlet assembly adopts scheme A, the knife outlet assembly comprises a first cavity (330) and a second cavity (350) which are arranged in the interior of the knife sheath (220), a driving piston (320) is slidingly installed in the interior of the first cavity (330), a slope column (310) is connected to the top of the driving piston (320), the slope of the slope column (310) is in contact with the trigger block (260), a knife outlet spring (340) is arranged between the bottom of the driving piston (320) and the first cavity (330), a knife outlet piston (360) is connected to the end of the cutting knife (210), the knife outlet piston (360) is slidingly installed in the second cavity (350), and the second cavity (350) is in communication with the first cavity (330); The trigger block (260) is provided with a slope block (450) on the side, the second cavity (350) is connected with a gas receiving seat (410) on the side, one side of the gas receiving seat (410) is the first cavity (330), the other side of the gas receiving seat (410) is connected with a gas pipe (370), the other end of the gas pipe (370) is connected with the second cavity (350), a valve plate (420) is slidingly installed in the middle of the gas receiving seat (410), an air hole (430) is arranged in the valve plate (420), a pressure spring (440) is installed at the bottom of the valve plate (420), the slope block (450) intermittently contacts the valve plate (420), when the slope block (450) contacts the valve plate (420), the pressure spring (440) is compressed, and the air hole (430) is in communication with the gas pipe (370) and the first cavity (330); Alternatively, the knife assembly adopts scheme B, the knife assembly comprises a rotating sleeve (321) and a rotating shaft (351) which are rotatably installed inside the sheath (220), an abutting plate (311) is integrally arranged on the rotating sleeve (321), the abutting plate (311) is in contact with the trigger block (260), a first bevel gear (331) is fixedly installed at the end of the rotating sleeve (321), a second bevel gear (341) is fixedly installed on the rotating shaft (351), the second bevel gear (341) is engaged with the first bevel gear (331), a transmission gear (361) is symmetrically installed on the rotating shaft (351), a rack plate (371) is arranged on the cutting knife (210), the transmission gear (361) is engaged with the rack plate (371); A sleeve plate (421) is fixedly installed at the top of the cutting knife (210), a moving plate (411) is fixedly installed at the bottom of the rack plate (371), an empty slot (431) is formed in the sleeve plate (421), the moving plate (411) is slidably inserted into the empty slot (431), a return spring (441) is installed between the moving plate (411) and the empty slot (431), a blocking block (461) is slidably installed on the inner wall of the sheath (220), the blocking block (461) is arranged as a sliding block with a beveled end and a blocking spring (471) installed on the other end, fixed columns (451) are fixedly installed on both sides of the sleeve plate (421), the blocking block (461) intermittently abuts against the fixed columns (451).

2. The biomass fuel pellet processing apparatus according to claim 1, wherein: A reduction motor (20) is installed at the bottom of the shell (10), the output shaft of the reduction motor (20) is connected with the center frame (120), a driving motor (140) is installed on the center frame (120), the driving motor (140) is in driving connection with the compression roller (130), a connecting arm (250) is connected between the center frame (120) and the sheath (220), a dust cover (40) is fixedly installed on the fixed disc (150), a feeding port (30) is installed on one side of the dust cover (40), and a discharging port (50) is arranged on the other side of the dust cover (40).

3. The biomass fuel pellet processing apparatus according to claim 1, wherein: A dust plate (240) is installed on one side of the sheath (220) adjacent to the ring die (110), the dust plate (240) is in sliding fit with the outer wall of the ring die (110), and a push plate (230) is installed at the end of the sheath (220) away from the cutting knife (210) for pushing the cut particles.

4. The biomass fuel pellet processing apparatus according to claim 2, wherein: The fixed disc (150) is provided with a screening ring (160) outside, the screening ring (160) is provided with a plurality of sieve holes, a spiral elastic slide (610) is installed below the screening ring (160), the width of the spiral elastic slide (610) corresponds to the screening ring (160), flexible cloth covers (630) are installed on both sides of the spiral elastic slide (610), the top of the flexible cloth cover (630) is fixedly connected with the bottom of the screening ring (160), a slag outlet (60) is connected with the end of the spiral elastic slide (610), an elastic cloth (620) is installed at the joint of the spiral elastic slide (610) and the slag outlet (60), and the top of the elastic cloth (620) is connected with the bottom of the screening ring (160).

5. A biomass fuel pellet processing apparatus according to claim 4, wherein: A rotating disc (510) is rotatably installed on the top of the casing (10), a beating wheel (520) is rotatably installed on the side of the rotating disc (510), a fixed rod (530) is fixedly installed on the side of the fixed disc (150), a vibrating block (560) is fixedly installed on the bottom of the screening ring (160), a knocking hammer (540) is rotatably installed on the fixed rod (530), the knocking hammer (540) is in contact with the vibrating block (560), a torsional spring (550) for storing force and resetting is installed on the fixed rod (530), and the two ends of the torsional spring (550) are respectively clamped with the knocking hammer (540) and the fixed disc (150).

6. The biomass fuel pellet processing apparatus according to claim 1, wherein: A plurality of forming holes (111) are formed in the ring die (110), the forming holes (111) are located between two adjacent partition blocks (112), and the forming holes (111) are located in the middle of the ring die (110).

Images