A straw biomass fuel extrusion molding machine

Abstract

The invention discloses a straw biomass fuel extrusion molding machine, which relates to the technical field of biomass fuel production, and comprises a processing bin, a cover plate is fixedly installed on the top surface of the processing bin, a feed hopper for feeding is fixedly installed on the top surface of the cover plate, a molding tube is rotatably connected to the inner bottom surface of the processing bin, and a plurality of circular holes for molding straw are opened on the outer circular wall surface of the molding tube, and a third driving motor, a movable frame, a second roller, a first inclined block, a connecting ring, a first spring, a rolling groove, a first roller, a limit plate, a support shaft, a support frame, a baffle, a mounting rod, a third spring, a base block, a movable plate, a movable plate, a support hole, an arc plate, a blade and a feed hole cooperate with each other to apply pressure to the biomass fuel, prevent the top end of the biomass fuel from being loose, and cut the biomass fuel into equal-length cylinders, thereby improving the integrity of the biomass fuel after molding, and facilitating the staff to produce biomass fuel in a standardized manner using straw.

Description

Technical Field

[0001] The invention relates to the technical field of biomass fuel production, in particular to a straw biomass fuel extrusion molding machine. Background Art

[0002] Biomass fuel: refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry waste (such as straw, sawdust, bagasse, rice bran, etc.), mainly different from fossil fuels. In national policies and environmental protection standards, direct combustion of biomass is a highly polluting fuel and is only used in large stoves in rural areas and is not allowed to be used in cities. The application of biomass fuel is actually mainly biomass molding fuel, which uses agricultural and forestry waste as raw materials, and is made into various shapes (such as blocks, granules, etc.) through processes such as crushing, mixing, extrusion, and drying. It is a new type of clean fuel that can be directly burned. Straw, as a kind of raw material for biomass fuel, can be crushed and used as a raw material for producing biomass fuel.

[0003] After searching, it was found that there are problems in the process of using straw to produce biomass fuel in the prior art. Since the staff often pours the straw crushed into the barrel and then uses the extrusion wheel and the rotation of the barrel to extrude the straw crushed through the holes on the barrel, when the staff pours the straw crushed into the barrel, the straw crushed may accumulate at the lower end of the barrel due to gravity, resulting in uneven thickness of the straw crushed entering the gap between the barrel and the extrusion wheel. At the same time, when the straw crushed is extruded through the holes on the barrel to form, one end of the biomass fuel lacks pressure for shaping, resulting in one end of the produced biomass fuel being loose and poor in integrity. One end is easy to crush and is not conducive to subsequent transportation, and the extrusion molding effect is poor, which affects the staff's use of straw crushed to produce biomass fuel. Therefore, based on the above search and combined with the prior art, a straw biomass fuel extrusion molding machine is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a straw biomass fuel extrusion molding machine, which has the advantages of good biomass fuel molding effect, tight ports and the ability to cut biomass fuel into fixed lengths, so as to solve the problem of looseness at one end of the biomass fuel and poor integrity.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A straw biomass fuel extrusion molding machine comprises a processing bin, a cover plate is fixedly mounted on the top surface of the processing bin, a feeding hopper for feeding is fixedly mounted on the top surface of the cover plate, a molding tube is rotatably connected to the inner bottom surface of the processing bin, a plurality of circular holes for molding straw are provided on the outer circular wall surface, two extrusion wheels are rotatably connected to the inner bottom surface of the processing bin, an annular groove is provided on the inner bottom surface of the processing bin, a limiting ring is fixedly mounted on the bottom surface of the molding tube, the limiting ring is rotatably connected to the annular groove, two discharge ports for discharging are provided on the outer circular wall surface of the processing bin, a ring plate is fixedly mounted on the inner bottom surface of the processing bin, an extrusion molding mechanism for molding biomass fuel is arranged on the top surface of the cover plate, and a softening mechanism for softening straw is arranged inside the feeding hopper.

[0007] Furthermore, the extrusion molding mechanism includes two baffles, both of which are fixedly mounted on the top surface of the cover plate, two arc-shaped plates are arranged on the inner bottom surface of the processing bin, a plurality of feed holes are opened on the outer circular wall surface of the arc-shaped plates, a blade for cutting biomass fuel is fixedly mounted on the inner bottom surface of the feed hole, a placement block is fixedly mounted on the outer circular wall surface of the arc-shaped plates, a movable plate is fixedly mounted on the top surface of the placement block, a first inclined block is slidably connected to one side of the baffle plate, a second inclined block is elastically connected to one side of the baffle plate, two movable blocks are fixedly mounted on one side of the movable plate, one side of the movable block is fixedly connected to one side of the first inclined block, and the first inclined block and the The top surface and the bottom surface of the second inclined block that are close to each other are provided with rolling grooves, one side of the baffle is slidably connected to a support frame, the inside of the support frame is rotatably connected to a first roller, the first roller is slidably connected to the rolling groove, one side of the baffle is rotatably connected to a movable frame, the inside of the movable frame is rotatably connected to a second roller, one side of the baffle is fixedly installed with a third driving motor for driving the movable frame to rotate, connecting rings are fixedly installed on both sides of the first inclined block, and a plurality of push rods are fixedly installed on the top surface of the cover plate, the connecting rings are elastically connected to the push rods, the wall thickness of the forming tube increases from top to bottom, and the radius of the extrusion wheel increases from top to bottom.

[0008] Furthermore, a gear ring is fixedly sleeved on the outer circumferential wall surface of the forming tube, and a gear body is meshingly connected to the outer circumferential wall surface of the gear ring. A second drive motor for driving the gear body to rotate is fixedly installed on the top surface of the cover plate, and a drive shaft of the second drive motor passes through the cover plate and is fixedly connected to the top surface of the gear body.

[0009] Furthermore, a positioning column is fixedly mounted on one side of the baffle, a positioning hole matching with the positioning column is opened on one side of the first inclined block, and the positioning column is slidably connected to the positioning hole.

[0010] Furthermore, a mounting frame is fixedly installed on the bottom surface of the processing chamber, a connecting shaft is fixedly installed on the bottom surface of the extrusion wheel, one end of the connecting shaft passes through the processing chamber and is fixedly installed with a synchronous wheel, the outer circular wall surfaces of the two synchronous wheels are rotatably connected with a synchronous belt, and the inner top surface of the mounting frame is fixedly installed with a fourth drive motor for driving the synchronous wheel located on the right side to rotate.

[0011] Furthermore, the softening mechanism includes a first kneading block, which is fixedly mounted on one side of the inner part of the feed hopper, and a second kneading block is slidably connected to the inner side of the feed hopper, and both sides of the first kneading block and the second kneading block that are close to each other are wavy and used for kneading the straw, and heaters for heating the straw are fixedly mounted on the top surfaces of the first kneading block and the second kneading block, and a mounting hole is provided on one side of the feed hopper, and a connecting block is fixedly mounted on one side of the second kneading block, and two support rods are fixedly mounted inside the mounting hole, and the mounting hole is elastically connected to the support rod, and a tooth plate is fixedly mounted on one side of the connecting block, and a missing gear is meshingly connected to one side of the tooth plate, and a support frame is fixedly mounted on one side of the feed hopper, and a first driving motor for driving the missing gear to rotate is fixedly mounted on one side of the support frame.

[0012] Furthermore, a limiting groove is provided on one side of the feed hopper, a limiting block is fixedly installed on one side of the tooth plate, a limiting rod for limiting the limiting block is fixedly installed inside the limiting groove, and the limiting block is slidably connected to the limiting rod.

[0013] Furthermore, two discharging racks are fixedly installed on the outer circular wall of the processing bin, and the inner bottom surface of the discharging rack moves downward in a sloped shape to facilitate discharging. Circular holes are opened on both sides of the discharging rack, and the inner circular wall of the circular hole is rotatably connected to a fan for cooling the biomass fuel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The feed hopper, forming tube, processing bin and extrusion wheel cooperate with each other to extrude the straw shreds, and the thickness of the straw shreds is relatively uniform due to the shape of the forming tube and the extrusion wheel. The third drive motor, movable frame, second roller, first inclined block, connecting ring, first spring, rolling groove, first roller, limit plate, support shaft, support frame, baffle, mounting rod, third spring, base block, movable plate, movable plate, support hole, arc plate, blade and feed hole cooperate with each other to apply pressure to the biomass fuel to prevent the top end from loosening and cut the biomass fuel into equal-length cylinders, prevent the biomass fuel from loosening due to the lack of pressure on the top end during the molding process, improve the integrity of the biomass fuel after molding, and facilitate the staff to use straw to produce biomass fuel in a standardized manner.

[0016] 2. By cooperating with each other through the set feed hopper, the first kneading block, the second kneading block, the first drive motor, the first drive motor, the tooth plate, the connecting block, the mounting hole, the support rod and the second spring, the second kneading block can be moved up and down to cooperate with the first kneading block to knead the straw fragments. The wave shape on both sides of the second kneading block and the first kneading block can enhance the kneading effect of the straw. At the same time, the heaters inside the first kneading block and the second kneading block will also heat the straw fragments, further enhancing the softening effect of the straw during the kneading process, thereby achieving the softening effect on the straw fragments and facilitating the subsequent extrusion molding of the straw fragments.

[0017] 3. By setting up a second drive motor, the drive shaft of the second drive motor rotates to drive the gear body to rotate, the gear body rotates to drive the gear ring to rotate, and the gear ring rotates to drive the forming tube to rotate, so that the forming tube and the extrusion wheel cooperate to extrude and shape the straw pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the feed hopper of the present invention;

[0020] Figure 3 for Figure 2 Schematic diagram of the local structure of A;

[0021] Figure 4 It is a schematic diagram of the limiting rod structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the forming tube of the present invention;

[0023] Figure 6 for Figure 5 Schematic diagram of the local structure of B;

[0024] Figure 7 It is a schematic diagram of the baffle structure of the present invention;

[0025] Figure 8 for Figure 7 Schematic diagram of the local structure of C;

[0026] Fig. 9 It is a bottom view schematic diagram of the processing chamber structure of the present invention;

[0027] Fig.10 It is a schematic diagram of the cross-section of the forming tube structure of the present invention;

[0028] Fig.11 It is a schematic diagram of the support hole structure of the present invention.

[0029] In the figure: 1, processing bin; 2, cover plate; 3, feed hopper; 4, extrusion molding mechanism; 5, softening mechanism; 6, discharge port; 7, discharge rack; 8, connecting ring; 9, first kneading block; 10, first spring; 11, push rod; 12, second kneading block; 13, fan; 14, blocking net; 15, missing gear; 16, support frame; 17, first drive motor; 18, tooth plate; 19, mounting hole; 20, connecting block; 21, support rod; 22, second spring; 23, heater; 24, limiting groove; 25, limiting block; 26, limiting rod; 27, molding tube; 28, extrusion wheel; 29, arc plate; 30, gear ring; 31, gear body; 32, second drive motor; 33. baffle; 34. support frame; 35. third drive motor; 36. first inclined block; 37. second inclined block; 38. movable block; 39. movable plate; 40. movable hole; 41. blade; 42. feed hole; 43. placement block; 44. annular groove; 45. limit ring; 46. ring plate; 47. mounting frame; 48. fourth drive motor; 49. synchronous wheel; 50. synchronous belt; 51. connecting shaft; 52. support hole; 53. mounting rod; 54. third spring; 55. base block; 56. rolling groove; 57. sliding groove; 58. first roller; 59. limit plate; 60. support shaft; 61. positioning hole; 62. positioning column; 63. movable frame; 64. second roller. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In a typical implementation of this application, please refer to Figure 1 - Fig.11A straw biomass fuel extrusion molding machine comprises a processing bin 1, a cover plate 2 is fixedly installed on the top surface of the processing bin 1, a feeding hopper 3 for feeding is fixedly installed on the top surface of the cover plate 2, a molding tube 27 is rotatably connected to the inner bottom surface of the processing bin 1, a plurality of circular holes for molding straw are opened on the outer circumferential wall surface of the molding tube 27, two extrusion wheels 28 are rotatably connected to the inner bottom surface of the processing bin 1, the extrusion wheels 28 and the molding tube 27 rotate so that the straw is extruded in the gap between the molding tube 27 and the extrusion wheels 28, and the extrusion The straw is formed through the circular hole on the forming tube 27. An annular groove 44 is provided on the inner bottom surface of the processing bin 1. A limiting ring 45 is fixedly installed on the bottom surface of the forming tube 27. The limiting ring 45 is rotatably connected to the annular groove 44. The cross sections of the annular groove 44 and the limiting ring 45 are both T-shaped, which prevents the forming tube 27 from driving the limiting ring 45 to escape from the annular groove 44. The rotation of the forming tube 27 drives the limiting ring 45 to rotate inside the annular groove 44. The rotation of the limiting ring 45 and the annular groove 44 can limit the rotation connection of the forming tube 27.

[0032] The outer circular wall of the processing bin 1 is provided with two discharge ports 6 for discharging materials. A ring plate 46 is fixedly installed on the inner bottom surface of the processing bin 1. The ring plate 46 is a circular ring structure and its height gradually decreases from the inside to the outside. The biomass fuel formed on the forming tube 27 will fall on the ring plate 46 and roll outward along the ring plate 46. The top surface of the cover plate 2 is provided with an extrusion forming mechanism 4 for forming the biomass fuel. The inside of the feed hopper 3 is provided with a softening mechanism 5 for softening the straw.

[0033] The extrusion molding mechanism 4 includes two baffles 33, both of which are fixedly mounted on the top surface of the cover plate 2. Two arc-shaped plates 29 are arranged on the inner bottom surface of the processing chamber 1. The inner wall of the arc-shaped plate 29 fits with the molding tube 27. The outer circular wall surface of the arc-shaped plate 29 is provided with a plurality of feed holes 42. The feed holes 42 are misaligned with the multiple circles of circular holes on the molding tube 27. A blade 41 for cutting off the biomass fuel is fixedly mounted on the inner bottom surface of the feed hole 42. The blade 41 is an arc-shaped structure.

[0034] A placement block 43 is fixedly installed on the outer circumferential wall surface of the arc-shaped plate 29, a movable plate 39 is fixedly installed on the top surface of the placement block 43, a first inclined block 36 is slidably connected to one side of the baffle plate 33, a second inclined block 37 is elastically connected to one side of the baffle plate 33, two movable holes 40 are provided on the top surface of the cover plate 2, the movable plate 39 is slidably connected to the movable holes 40, two movable blocks 38 are fixedly installed on one side of the movable plate 39, and one side of the movable block 38 is fixedly connected to one side of the first inclined block 36;

[0035] A support hole 52 is provided on one side of the baffle plate 33, and a mounting rod 53 is fixedly installed inside the support hole 52. A base block 55 is fixedly installed on one side of the second inclined block 37, and the base block 55 is slidably connected to the mounting rod 53. A third spring 54 is movably sleeved on the outer circular wall surface of the mounting rod 53, and one end of the third spring 54 is fixedly connected to the top surface of the base block 55, and the other end of the third spring 54 is fixedly connected to the inner top surface of the support hole 52. The mounting rod 53, the third spring 54 and the base block 55 cooperate to provide a reset force for the second inclined block 37 after the second inclined block 37 moves. The top and bottom surfaces of the first inclined block 36 and the second inclined block 37 that are close to each other are both provided with rolling grooves 56. A support frame 34 is slidably connected to one side of the baffle plate 33, and a sliding groove 57 is provided on one side of the baffle plate 33. The support frame 34 is slidably connected to the sliding groove 57, and the support frame 34 moves inside the sliding groove 57 on the baffle plate 33, and the sliding groove 57 can limit the movement of the support frame 34.

[0036] The support frame 34 is rotatably connected to the inside of the first roller 58, and the first roller 58 is slidably connected to the rolling groove 56. Limiting plates 59 for limiting are fixedly installed on both sides of the first roller 58. The limiting plates 59 can prevent the first roller 58 from tilting. A support shaft 60 is fixedly installed on one side of the limiting plate 59. The support shaft 60 is rotatably connected to both sides of the inside of the support frame 34 through bearings. The first roller 58 rolls inside the rolling groove 56 to drive the arc plate 29 to rotate. The rotation of the limiting plate 59 drives the support shaft 60 to rotate on the support frame 34. A movable frame 63 is rotatably connected to one side of the baffle plate 33. The inside of the movable frame 63 is rotatably connected to the second roller 64 through a pin. A third driving member for driving the movable frame 63 to rotate is fixedly installed on one side of the baffle plate 33. Motor 35, one end of the driving shaft of the third driving motor 35 passes through the baffle 33 and is fixedly connected to one side of the movable frame 63, connecting rings 8 are fixedly installed on both sides of the first inclined block 36, and the connecting ring 8 is composed of a rectangular block and a circular ring. A plurality of ejector pins 11 are fixedly installed on the top surface of the cover plate 2, and the connecting ring 8 is elastically connected to the ejector pin 11. The outer circular wall surface of the ejector pin 11 is movably sleeved with a first spring 10, one end of the first spring 10 is fixedly connected to the top surface of the cover plate 2, and the other end of the first spring 10 is fixedly connected to the bottom surface of the connecting ring 8. The wall thickness of the forming tube 27 increases from top to bottom, and the radius of the extrusion wheel 28 increases from top to bottom. A PLC controller is fixedly installed on the top surface of the processing chamber 1, and the third driving motor 35 is electrically connected to the PLC controller;

[0037] Through the above technical features, through the set feed hopper 3, the staff pours the straw shreds into the interior of the feed hopper 3, and the straw shreds entering the interior of the feed hopper 3 will fall into the forming tube 27. The forming tube 27 rotates to generate centrifugal force so that the straw shreds adhere to the inner wall of the forming tube 27. At the same time, a large amount of straw shreds will accumulate at the lower end of the forming tube 27 due to the force of gravity. The two extrusion wheels 28 rotate to squeeze the straw shreds between the forming tubes 27 and the forming tubes 27. The radius of the extrusion wheel 28 gradually increases from top to bottom, so the outer wall of the extrusion wheel 28 fits the inner wall of the forming tube 27 so that the straw shreds entering the gap between the two are more uniform in thickness from top to bottom, thereby avoiding a large amount of straw shreds from accumulating at the lower end of the forming tube 27. The extrusion wheel 28 and the forming tube 27 rotate so that the straw shreds are formed through the circular hole on the forming tube 27 under the action of the pressure between the forming tube 27 and the extrusion wheel 28 and move outward inside the circular hole.

[0038] When the biomass fuel in the forming process moves forward inside the circular hole until it abuts against the inside of the arc plate 29, the biomass fuel is blocked by the arc plate 29 and the pressure from the forming tube 27 and the extrusion wheel 28, and the front end of the biomass fuel is also pressurized and formed;

[0039] The staff starts the third driving motor 35, and the driving shaft of the third driving motor 35 rotates to drive the movable frame 63 and the second roller 64 to rotate. When the second roller 64 rotates and contacts the bottom surface of the first inclined block 36, the second roller 64 will squeeze the first inclined block 36 to make the first inclined block 36 move upward. The upward movement of the first inclined block 36 makes the connecting ring 8 move upward along the top rod 11 and the first spring 10 is compressed. The upward movement of the first inclined block 36 also makes the first roller 58 between the first inclined block 36 and the second inclined block 37 roll downward inside the rolling groove 56 on the first inclined block 36 and the second inclined block 37. The downward rolling of the first roller 58 drives the limiting plate 59 and the support shaft 60 to rotate and makes the support frame 34 move inward inside the sliding groove 57 on the baffle 33. The downward rolling of the first roller 58 will squeeze the second inclined block 37, and the second inclined block 37 is compressed. The extrusion causes the second inclined block 37 to drive the base block 55 to move upward along the mounting rod 53 inside the support hole 52, and at the same time, the third spring 54 is compressed. At this time, the first inclined block 36 will also drive the movable block 38 and the movable plate 39 to move upward inside the movable hole 40 on the cover plate 2. The movable plate 39 moves upward to drive the placement block 43 to move upward, and the placement block 43 moves upward to drive the arc plate 29 to move upward. After the arc plate 29 moves upward, the biomass fuel in the circular hole on the forming tube 27 will enter the inside of the feed hole 42 on the arc plate 29. As the arc plate 29 moves upward, the blade 41 inside the feed hole 42 can cut off the biomass fuel, and the cut biomass fuel will fall on the inner bottom surface of the processing bin 1. Since the frequency of the arc plate 29 driving the blade 41 to move up and down is the same, the blade 41 can cut the biomass fuel into cylinders of the same length.

[0040] When the second roller 64 rotates to no longer contact the bottom surface of the first inclined block 36, the force of the third spring 54 causes the base block 55 to drive the second inclined block 37 to move downward, and the second inclined block 37 moves downward to drive the first roller 58 to roll upward and simultaneously causes the support frame 34 to move outward, and the first roller 58 rolls upward to squeeze the first inclined block 36 downward, and the force of the first spring 10 also causes the connecting ring 8 to drive the first inclined block 36 to move downward, and the first inclined block 36 moves downward to drive the movable plate 39 to move downward, thereby resetting the arc plate 29, so that the feed hole 42 on the arc plate 29 is misaligned with the circular hole on the forming tube 27, and then one end of the next batch of formed biomass fuel is allowed to abut against the arc plate 29, preventing the biomass fuel from loosening due to the lack of pressure on the top during the forming process, thereby improving the integrity of the biomass fuel after forming, and facilitating the standardized production of biomass fuel using straw;

[0041] The outer circumferential wall surface of the forming tube 27 is fixedly sleeved with a gear ring 30, and the outer circumferential wall surface of the gear ring 30 is meshedly connected with a gear body 31. The top surface of the cover plate 2 is fixedly installed with a second drive motor 32 for driving the gear body 31 to rotate. The drive shaft of the second drive motor 32 passes through the cover plate 2 and is fixedly connected to the top surface of the gear body 31. The gear body 31 is electrically connected to the PLC controller;

[0042] Specifically, the second drive motor 32 is provided, and the drive shaft of the second drive motor 32 rotates to drive the gear body 31 to rotate, and the gear body 31 rotates to drive the gear ring 30 to rotate, and the gear ring 30 rotates to drive the forming tube 27 to rotate, so that the forming tube 27 and the extrusion wheel 28 cooperate to extrude and shape the straw pieces;

[0043] A positioning column 62 is fixedly installed on one side of the baffle 33, and a positioning hole 61 that matches the positioning column 62 is opened on one side of the first inclined block 36. The positioning column 62 is slidably connected to the positioning hole 61. Through the setting of the first inclined block 36, the first inclined block 36 will move along the positioning column 62 during the movement along the baffle 33. The positioning hole 61 and the positioning column 62 can cooperate to limit the movement of the baffle 33, thereby achieving a limiting effect on the first inclined block 36.

[0044] As a preferred implementation in this embodiment, please refer to Figure 1 - Fig. 9A mounting frame 47 is fixedly installed on the bottom surface of the processing bin 1, a connecting shaft 51 is fixedly installed on the bottom surface of the extrusion wheel 28, one end of the connecting shaft 51 passes through the processing bin 1 and is fixedly installed with a synchronous wheel 49, the outer circumferential wall surfaces of the two synchronous wheels 49 are rotatably connected with a synchronous belt 50, and a fourth driving motor 48 for driving the right synchronous wheel 49 to rotate is fixedly installed on the inner top surface of the mounting frame 47. The four driving motors 48, the synchronous wheels 49 and the synchronous belt 50 cooperate to drive the two extrusion wheels 28 to rotate and extrude the straw, and the top surface of the driving shaft of the fourth driving motor 48 is fixedly connected to the bottom surface of the right synchronous wheel 49;

[0045] Specifically, the fourth driving motor 48 is provided, and the driving shaft of the fourth driving motor 48 rotates to drive the right synchronous wheel 49 to rotate, and the right synchronous wheel 49 rotates to drive the left synchronous wheel 49 to rotate through the synchronous belt 50, and the two synchronous wheels 49 rotate to drive the extrusion wheel 28 to rotate through the connecting shaft 51, thereby driving the extrusion wheel 28 to rotate;

[0046] Specifically, the softening mechanism 5 includes a first kneading block 9, which is fixedly mounted on one side of the inner part of the feed hopper 3, and a second kneading block 12 is slidably connected to one side of the inner part of the feed hopper 3. Both sides of the first kneading block 9 and the second kneading block 12 close to each other are wavy and used to knead the straw. The top surfaces of the first kneading block 9 and the second kneading block 12 are fixedly mounted with a heater 23 for heating the straw. The heater 23 can heat the straw to soften the lignin in the straw, thereby improving the softening effect on the straw.

[0047] A mounting hole 19 is provided on one side of the feed hopper 3, a connecting block 20 is fixedly installed on one side of the second kneading block 12, two support rods 21 are fixedly installed inside the mounting hole 19, the mounting hole 19 is elastically connected to the support rods 21, the mounting hole 19 and the support rods 21 can limit the movement of the connecting block 20, a second spring 22 is movably sleeved on the outer circular wall of the support rod 21, one end of the second spring 22 is fixedly connected to the bottom surface of the connecting block 20, and the other end of the second spring 22 is fixedly connected to the inner bottom surface of the mounting hole 19, the second spring 22 can provide the second kneading block 12 with the force required for resetting, a tooth plate 18 is fixedly installed on one side of the connecting block 20, one side of the tooth plate 18 is meshingly connected with the missing gear 15, a support frame 16 is fixedly installed on one side of the feed hopper 3, and a first drive motor 17 for driving the missing gear 15 to rotate is fixedly installed on one side of the support frame 16, a drive shaft of the first drive motor 17 is fixedly connected to one end of the missing gear 15, and the other end of the missing gear 15 is rotatably connected to one side of the feed hopper 3 through a bearing;

[0048] Specifically, through the provided feed hopper 3, the staff pours the shredded straw into the interior of the feed hopper 3, and the shredded straw entering the interior of the feed hopper 3 will fall between the first kneading block 9 and the second kneading block 12. The staff starts the first drive motor 17, and the drive shaft of the first drive motor 17 rotates to drive the missing gear 15 to rotate. When the teeth on the missing gear 15 rotate to contact with the tooth plate 18, the tooth plate 18 will move downward, and the tooth plate 18 moves downward to drive the connecting block 20 to move downward along the support rod 21 inside the mounting hole 19, while causing the second spring 22 to be compressed. The connecting block 20 moves downward to drive the second kneading block 12 to move downward. When the part without teeth of the missing gear 15 rotates to Contacting with the tooth plate 18, the force of the second spring 22 makes the connecting block 20 drive the tooth plate 18 to move upward, and the upward movement of the connecting block 20 will also drive the second kneading block 12 to move upward, and the second kneading block 12 moves up and down and cooperates with the first kneading block 9 to knead the straw fragments, and the wave shape on both sides of the second kneading block 12 and the first kneading block 9 can improve the kneading effect of the straw. At the same time, the heaters 23 inside the first kneading block 9 and the second kneading block 12 will also heat the straw fragments, further improving the softening effect of the straw during the kneading process, so as to achieve the softening effect of the straw fragments. The softened straw fragments are easier to extrude and form, which is convenient for the staff to reinforce the straw fragments later;

[0049] A limiting groove 24 is provided on one side of the feed hopper 3, a limiting block 25 is fixedly installed on one side of the tooth plate 18, a limiting rod 26 for limiting the limiting block 25 is fixedly installed inside the limiting groove 24, and the limiting block 25 is slidably connected to the limiting rod 26;

[0050] Specifically, through the tooth plate 18, the movement of the tooth plate 18 drives the limiting block 25 to move upward along the limiting rod 26 inside the limiting groove 24 on the feed hopper 3. The limiting block 25 and the limiting rod 26 can limit the movement of the tooth plate 18, thereby achieving a limiting effect on the tooth plate 18.

[0051] Two discharging racks 7 are fixedly installed on the outer circular wall of the processing bin 1. The inner bottom surface of the discharging rack 7 moves downward in a slope shape to facilitate discharging. Circular holes are opened on both sides of the discharging rack 7. The inner circular wall of the circular hole is rotatably connected with a fan 13 for cooling the biomass fuel. The inner circular wall of the circular hole is fixedly sleeved with a blocking net 14 to prevent the biomass fuel from being drawn into the fan 13.

[0052] Specifically, through the processing bin 1 that is set up, the biomass fuel formed inside the processing bin 1 will fall onto the discharge rack 7, and the biomass fuel will slide downward along the discharge rack 7 for easy collection by the staff. During this process, the staff starts the fan 13, and the fan 13 rotates to generate airflow to cool the biomass fuel, while the barrier net 14 can prevent the fan 13 from contacting the biomass fuel and prevent the fan 13 from being damaged, making it convenient for the staff to cool down and bag the biomass fuel.

[0053] Working principle: Through the feed hopper 3, the staff pours the straw shreds into the feed hopper 3, and the straw shreds entering the feed hopper 3 will fall between the first kneading block 9 and the second kneading block 12. The second kneading block 12 moves up and down under the action of the missing gear 15 and the tooth plate 18, so that the second kneading block 12 cooperates with the first kneading block 9 to knead the straw shreds. In this process, the heater 23 can heat the straw shreds, further improve the softening of the straw shreds, and help the subsequent shaping of the straw shreds;

[0054] Secondly, the softened straw pieces will enter the interior of the forming tube 27, and the forming tube 27 and the two extrusion wheels 28 rotate to extrude the straw pieces, so that the straw pieces come into contact with the arc plate 29 through the circular hole on the forming tube 27. The arc plate 29 can apply pressure to one end of the biomass fuel, so that one end of the biomass fuel is formed to prevent its top end from being loose. The arc plate 29 will move upward under the drive of the first inclined block 36, and the arc plate 29 moves upward so that the feed hole 42 on the arc plate 29 is aligned with the circular hole on the forming tube 27. At this time, the biomass fuel will enter the interior of the feed hole 42. As the arc plate 29 moves, the blade 41 inside the feed hole 42 can cut off the biomass fuel. Since the frequency of the up and down movement of the arc plate 29 is the same, the biomass fuel is cut into equal-length cylinders.

[0055] Finally, the formed biomass fuel will fall onto the discharging rack 7 through the discharging port 6. The fans 13 on both sides of the discharging rack 7 generate airflows to reduce the temperature of the biomass fuel, making it convenient for the staff to bag the formed biomass fuel.

[0056] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A straw biomass fuel extrusion molding machine, characterized in that: include: A processing bin (1), wherein a cover plate (2) is fixedly mounted on the top surface of the processing bin (1), a feeding hopper (3) for feeding materials is fixedly mounted on the top surface of the cover plate (2), a forming tube (27) is rotatably connected to the inner bottom surface of the processing bin (1), a plurality of circular holes for forming straw are provided on the outer circular wall surface of the forming tube (27), two extrusion wheels (28) are rotatably connected to the inner bottom surface of the processing bin (1), an annular groove (44) is provided on the inner bottom surface of the processing bin (1), a limiting ring (45) is fixedly mounted on the bottom surface of the forming tube (27), the limiting ring (45) is rotatably connected to the annular groove (44), two discharge ports (6) for discharging materials are provided on the outer circular wall surface of the processing bin (1), a ring plate (46) is fixedly mounted on the inner bottom surface of the processing bin (1), an extrusion forming mechanism (4) for forming biomass fuel is provided on the top surface of the cover plate (2), and a softening mechanism (5) for softening straw is provided inside the feeding hopper (3); The extrusion molding mechanism (4) comprises two baffles (33), both of which are fixedly mounted on the top surface of the cover plate (2); the inner bottom surface of the processing chamber (1) is provided with two arc-shaped plates (29); the outer circular wall surface of the arc-shaped plate (29) is provided with a plurality of feed holes (42); the inner bottom surface of the feed hole (42) is fixedly mounted with a blade (41) for cutting off the biomass fuel; the outer circular wall surface of the arc-shaped plate (29) is fixedly mounted with a placement block (43); the top surface of the placement block (43) is fixedly mounted with a movable plate (39); one side of the baffle (33) is slidably connected to a first inclined block (36); one side of the baffle (33) is elastically connected to a second inclined block (37); one side of the movable plate (39) is fixedly mounted with two movable blocks (38); one side of the movable block (38) is fixedly connected to one side of the first inclined block (36); the first inclined block (36) and the second inclined block (37) are fixedly mounted on one side of the movable plate (39); The top and bottom surfaces of the inclined block (37) close to each other are provided with rolling grooves (56); one side of the baffle plate (33) is slidably connected to a support frame (34); the support frame (34) is internally rotatably connected to a first roller (58); the first roller (58) is slidably connected to the rolling groove (56); one side of the baffle plate (33) is rotatably connected to a movable frame (63); the movable frame (63) is internally rotatably connected to a second roller (64); one side of the baffle plate (33) is fixedly mounted with a third drive motor (35) for driving the movable frame (63) to rotate; both sides of the first inclined block (36) are fixedly mounted with connecting rings (8); a plurality of ejector rods (11) are fixedly mounted on the top surface of the cover plate (2); the connecting rings (8) are elastically connected to the ejector rods (11); the wall thickness of the forming tube (27) increases from top to bottom; and the radius of the extrusion wheel (28) increases from top to bottom; The softening mechanism (5) comprises a first kneading block (9), the first kneading block (9) being fixedly mounted on one side of the interior of the feed hopper (3), the second kneading block (12) being slidably connected to the one side of the interior of the feed hopper (3), both sides of the first kneading block (9) and the second kneading block (12) being close to each other are both wavy in shape for kneading the straw, the top surfaces of the first kneading block (9) and the second kneading block (12) are both fixedly mounted with heaters (23) for heating the straw, a mounting hole (19) is provided on one side of the feed hopper (3), and the first kneading block (9) and the second kneading block (12) are both fixedly mounted with heaters (23) for heating the straw. A connecting block (20) is fixedly mounted on one side of the two kneading blocks (12); two support rods (21) are fixedly mounted inside the mounting hole (19); the mounting hole (19) is elastically connected to the support rods (21); a tooth plate (18) is fixedly mounted on one side of the connecting block (20); one side of the tooth plate (18) is meshingly connected to a missing gear (15); a supporting frame (16) is fixedly mounted on one side of the feed hopper (3); a first driving motor (17) for driving the missing gear (15) to rotate is fixedly mounted on one side of the supporting frame (16).

2. The straw biomass fuel extrusion molding machine according to claim 1, characterized in that: A gear ring (30) is fixedly sleeved on the outer circumferential wall surface of the forming tube (27), and a gear body (31) is meshingly connected to the outer circumferential wall surface of the gear ring (30). A second drive motor (32) for driving the gear body (31) to rotate is fixedly mounted on the top surface of the cover plate (2), and a drive shaft of the second drive motor (32) passes through the cover plate (2) and is fixedly connected to the top surface of the gear body (31).

3. The straw biomass fuel extrusion molding machine according to claim 2, characterized in that: A positioning column (62) is fixedly mounted on one side of the baffle (33), a positioning hole (61) matching with the positioning column (62) is opened on one side of the first inclined block (36), and the positioning column (62) is slidably connected to the positioning hole (61).

4. The straw biomass fuel extrusion molding machine according to claim 3, characterized in that: A mounting frame (47) is fixedly mounted on the bottom surface of the processing chamber (1), a connecting shaft (51) is fixedly mounted on the bottom surface of the extrusion wheel (28), one end of the connecting shaft (51) passes through the processing chamber (1) and is fixedly mounted with a synchronous wheel (49), the outer circumferential wall surfaces of the two synchronous wheels (49) are rotatably connected with a synchronous belt (50), and a fourth driving motor (48) for driving the synchronous wheel (49) located on the right side to rotate is fixedly mounted on the inner top surface of the mounting frame (47).

5. The straw biomass fuel extrusion molding machine according to claim 4, characterized in that: A limiting groove (24) is provided on one side of the feed hopper (3), a limiting block (25) is fixedly mounted on one side of the tooth plate (18), a limiting rod (26) for limiting the limiting block (25) is fixedly mounted inside the limiting groove (24), and the limiting block (25) is slidably connected to the limiting rod (26).

6. The straw biomass fuel extrusion molding machine according to claim 1, characterized in that: Two discharging racks (7) are fixedly mounted on the outer circular wall of the processing bin (1); the inner bottom surface of the discharging rack (7) moves downward in a sloped manner to facilitate discharging; circular holes are provided on both sides of the discharging rack (7); and a fan (13) for cooling the biomass fuel is rotatably connected to the inner circular wall of the circular hole.

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