Automatic extrusion forming device for biomass charcoal

Abstract

The utility model discloses an automatic biomass charcoal extrusion forming device which comprises a driving motor, an extrusion cylinder and an extrusion screw rod, the extrusion screw rod is rotatably connected in the extrusion cylinder, the extrusion screw rod comprises a stirring rod section, a gradual change rod section and an extrusion conveying rod section which are integrally formed, and the diameter of the extrusion conveying rod section is larger than that of the stirring rod section. The two ends of the gradual change rod section are connected with the stirring rod section and the extrusion conveying rod section respectively, a plurality of stirring blades are fixed to the outer wall of the stirring rod section, spiral blades are fixed to the outer walls of the gradual change rod section and the extrusion conveying rod section, and the outer diameters of the spiral blades on the gradual change rod section and the extrusion conveying rod section are the same. And the inner diameters of the spiral blades on the gradual change rod section are gradually increased in the direction close to the extrusion conveying rod section. According to the biomass charcoal extrusion forming device, the smoothness of extrusion discharging can be improved, and the structural stability and the forming quality of biomass charcoal extrusion forming are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biochar, in particular to an automatic extrusion molding device for biochar. Background Art

[0002] Biochar, also known as biochar, is a carbon-rich carbon product formed by carbonization of plants, plant waste, municipal waste, animal manure, urban and industrial waste, etc. As a renewable and reusable material, biochar has broad application prospects in agriculture, industry and environmental remediation.

[0003] In the process of extrusion molding of biochar, if the material components are not mixed evenly or the extrusion force is insufficient, the molded structure of the extruded biochar may be unstable and prone to local defects or looseness. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an automatic biochar extrusion molding device, which can improve the smoothness of material discharge and enhance the structural stability and molding quality of biochar extrusion molding.

[0005] The technical solution adopted by the utility model to solve the technical problem is: an automatic extrusion molding device for biochar, comprising a driving motor, an extrusion cylinder and an extrusion screw rod, wherein the extrusion screw rod is rotatably connected to the extrusion cylinder, one end of the extrusion screw rod passes through the extrusion cylinder and is coaxially fixed to the output shaft of the driving motor, and the outer wall of the extrusion cylinder near the driving motor is connected to a feed bin;

[0006] The extrusion spiral rod includes an integrally formed stirring rod section, a gradient rod section and an extrusion conveying rod section, the diameter of the extrusion conveying rod section is larger than that of the stirring rod section, the two ends of the gradient rod section are respectively connected to the stirring rod section and the extrusion conveying rod section, the stirring rod section is located at one end of the extrusion cylinder close to the feed bin, a plurality of stirring blades are fixed to the outer wall of the stirring rod section, spiral blades are fixed to the outer walls of the gradient rod section and the extrusion conveying rod section, the outer diameters of the spiral blades on the gradient rod section and the extrusion conveying rod section are the same and remain unchanged, and the inner diameter of the spiral blades on the gradient rod section is arranged to increase in the direction close to the extrusion conveying rod section.

[0007] Furthermore, a movable spiral blade is provided on the outer wall of the extrusion conveying rod segment. The movable spiral blade has the same inner diameter, outer diameter and pitch as the spiral blade on the extrusion conveying rod segment. The movable spiral blade can be attached to one side of the spiral blade on the extrusion conveying rod segment. The movable spiral blade is connected to a movable adjusting part, and the movable spiral blade can slide and displace along the axial direction of the extrusion conveying rod segment through the movable adjusting part.

[0008] Furthermore, the movable adjusting part includes an oil cylinder and an inner cylinder, a connecting cavity is provided at one end of the extrusion and conveying rod section away from the gradual rod section, the inner cylinder is slidably inserted in the connecting cavity and fits with the inner wall of the connecting cavity, a clamping block is fixed on the outer wall of the inner cylinder, a slide groove is provided on the inner wall of the connecting cavity, the slide groove extends along the axial direction of the extrusion and conveying rod section, the clamping block is located in the slide groove, a connecting shaft is fixed on one end of the inner cylinder, the end of the connecting shaft away from the inner cylinder passes through the extrusion cylinder and is rotatably connected to the output shaft of the oil cylinder; the inner wall of the extrusion and conveying rod section is provided with a notch along its own length direction, a connecting block is slidably connected in the notch, and the movable spiral leaf is fixedly connected to the inner cylinder through the connecting block.

[0009] Furthermore, blocking pieces are fixed on both sides of the connection block, a shielding plate is fixed on the inner wall of the slot, and one end of the blocking piece away from the connection block is in contact with the bottom surface of the shielding plate.

[0010] Furthermore, the end of the extrusion cylinder away from the driving motor is connected to a discharge die head, and a cutting mechanism is provided at the discharge die head. The cutting mechanism includes two arc-shaped cutters arranged opposite to each other. The arc-shaped cutters are attached to the outer wall of the discharge die head, and the two arc-shaped cutters can move relative to or away from each other.

[0011] Beneficial effects of the utility model:

[0012] The utility model provides a stirring rod section at the discharge port of the feed bin, which fully stirs and mixes the incoming biomass charcoal material, ensures the uniformity of the various components of the material, and thus improves the product quality of the extruded biomass charcoal; the arrangement of the spiral blades on the gradient rod section and the extrusion conveying rod section increases the extrusion force on the material in the extrusion barrel, thereby improving the smoothness of the discharge and the extrusion molding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a partial cross-sectional view of the overall structure of the utility model.

[0014] Figure 2 It is a side view of the overall structure of the utility model.

[0015] Figure 3 It is a partial structural sectional view of the extrusion screw rod in the utility model.

[0016] Figure 4 yes Figure 3 A partial enlarged view of area A in the middle.

[0017] In the figure: 1. driving motor; 2. extrusion cylinder; 21. discharging die head; 22. feeding bin; 3. extrusion screw rod; 31. stirring rod section; 311. stirring blade; 32. gradient rod section; 33. extrusion conveying rod section; 331. spiral blade; 332. slide groove; 333. notch; 334. shield plate; 34. movable spiral blade; 4. movable adjusting part; 41. oil cylinder; 42. inner cylinder; 421. connecting shaft; 43. block; 44. connecting block; 45. baffle; 5. cutting mechanism; 51. arc cutter; 52. bidirectional screw rod; 53. cutting motor; 54. connecting rod; 55. nut seat; 56. mounting seat. DETAILED DESCRIPTION

[0018] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0019] The utility model discloses an automatic extrusion molding device for biochar.

[0020] Reference Figure 1 and Figure 2 A biochar automatic extrusion molding device includes a driving motor 1, an extrusion cylinder 2 and an extrusion screw rod 3. The extrusion screw rod 3 is rotatably connected to the extrusion cylinder 2. One end of the extrusion screw rod 3 passes through the extrusion cylinder 2 and is coaxially fixed with the output shaft of the driving motor 1. The outer wall of the extrusion cylinder 2 close to the driving motor 1 is connected to a feed bin 22; the end of the extrusion cylinder 2 away from the driving motor 1 is installed with a discharge die 21. The driving motor 1 drives the extrusion screw rod 3 to rotate, and the extrusion screw rod 3 pushes the material box discharge die 21 to move, and then extrudes and discharges from the discharge hole of the discharge die 21 to complete the extrusion molding of biochar.

[0021] Reference Figures 1 to 3 The extrusion screw rod 3 includes an integrally formed stirring rod segment 31, a gradual rod segment 32 and an extrusion conveying rod segment 33. The diameter of the extrusion conveying rod segment 33 is larger than that of the stirring rod segment 31. The two ends of the gradual rod segment 32 are respectively connected to the stirring rod segment 31 and the extrusion conveying rod segment 33. The stirring rod segment 31 is located at one end of the extrusion cylinder 2 close to the feed bin 22. A plurality of stirring blades 311 are fixed to the outer wall of the stirring rod segment 31. Spiral blades 331 are fixed to the outer walls of the gradual rod segment 32 and the extrusion conveying rod segment 33. The outer diameters of the spiral blades 331 on the gradual rod segment 32 and the extrusion conveying rod segment 33 are the same and remain unchanged. The inner diameter of the spiral blades 331 on the gradual rod segment 32 is gradually increased in the direction close to the extrusion conveying rod segment 33.

[0022] The stirring rod section 31 is located at the discharge port of the feed bin 22, and plays a role in fully stirring and mixing the incoming materials, ensuring the uniformity of the various components of the materials, and thus improving the product quality of the extruded biochar. The spiral blades 331 of the gradual rod section 32 are arranged with increasing inner diameters, which can increase the extrusion force on the materials in the extrusion barrel, improve the smoothness of the discharge and the extrusion effect.

[0023] The outer wall of the extrusion conveying rod segment 33 is provided with a movable spiral blade 34, which has the same inner diameter, outer diameter and pitch as the spiral blade 331 on the extrusion conveying rod segment 33. The movable spiral blade 34 can be attached to one side of the spiral blade 331 on the extrusion conveying rod segment 33. The movable spiral blade 34 is connected with a movable adjusting member 4, and the movable spiral blade 34 can slide and displace along the axial direction of the extrusion conveying rod segment 33 through the movable adjusting member 4. The pitch of the extrusion conveying rod segment 33 can be adjusted and changed through the movable spiral blade 34, and then the conveying speed and extrusion force for the material can be changed, so that the extrusion conveying rod segment 33 can smoothly drive the material to move forward and provide a suitable extrusion force.

[0024] Reference Figure 3 and Figure 4 The movable adjusting member 4 includes an oil cylinder 41 and an inner cylinder 42. A connecting cavity is provided at one end of the extrusion conveying rod segment 33 away from the gradual rod segment 32. The inner cylinder 42 is slidably inserted in the connecting cavity and fits with the inner wall of the connecting cavity. A clamping block 43 is fixed on the outer wall of the inner cylinder 42. A slide groove 332 is provided on the inner wall of the connecting cavity. The slide groove 332 extends along the axial direction of the extrusion conveying rod segment 33. The clamping block 43 is located in the slide groove 332. The arrangement of the clamping block 43 and the slide groove 332 enables the inner cylinder 42 and the extrusion conveying rod segment 33 to maintain synchronous rotation. A connecting shaft 421 is fixed at one end of the inner cylinder 42. The end of the connecting shaft 421 away from the inner cylinder passes through the extrusion cylinder 2 and is rotatably connected to the output shaft of the oil cylinder 41. A notch 333 is provided on the inner wall of the extrusion conveying rod segment 33 along its length direction. A connecting block 44 is slidably connected in the notch 333. The movable spiral leaf 34 is fixedly connected to the inner cylinder 42 through the connecting block 44. When the output shaft of the oil cylinder 41 moves in extension and retraction, it drives the inner cylinder to slide in the connecting cavity, and then drives the movable spiral blade 34 to slide, thereby indirectly increasing the number of turns and pitch of the spiral blade 331 on the extrusion conveying rod section 33, ensuring that the conveying and extrusion force performance of the extrusion screw rod 3 can be adapted to the material amount in the extrusion cylinder 2 and the required molding pressure.

[0025] Blocking pieces 45 are fixed on both sides of the connection block 44, and a shield 334 is fixed on the inner wall of the slot 333. The outer wall of the shield 334 is flush with the outer wall of the rod body of the extrusion conveying rod section 33. The end of the blocking piece 45 away from the connection block 44 is attached to the bottom surface of the shield 334 and can slide relative to the shield 334. When the movable spiral blade 34 slides under the drive of the oil cylinder 41, the blocking pieces 45 on both sides of the connection block 44 slide at the bottom of the shield 334 to close the slot 333, effectively preventing materials from entering the groove formed by the slot 333.

[0026] Reference Figure 2 The end of the extrusion cylinder 2 away from the driving motor 1 is connected to a discharge die 21, and a cutting mechanism 5 is arranged at the discharge die 21. The cutting mechanism 5 includes two oppositely arranged arc cutters 51, a bidirectional screw rod 52, a cutting motor 53 and a mounting seat 56.

[0027] The bidirectional screw rod 52 is rotatably connected in the mounting seat 56, one end of the bidirectional screw rod 52 passes through the mounting seat 56 and is coaxially fixed with the output shaft of the cutting motor 53, and the cutting motor 53 is bolted to the mounting seat 56. The arc cutter 51 is attached to the outer wall of the discharge die head 21, and a connecting rod 54 is fixed to the end of the arc cutter 51 away from the discharge die head 21, and a nut seat 55 is fixed to the bottom end of the connecting rod 54, and the nut seat 55 is slidably connected in the mounting seat 56, and the bidirectional screw rod 52 is inserted in the nut seat 55, and the bidirectional screw rod 52 is threadedly connected to the nut seat 55, and then the cutting motor 53 drives the bidirectional screw rod 52 to rotate, and the bidirectional screw rod 52 drives the two arc cutters 51 to move relative or opposite to each other through the nut seat 55 and the connecting rod 54, so as to cut the extruded material of the biomass charcoal.

[0028] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A biochar automatic extrusion molding device, comprising a driving motor (1), an extrusion cylinder (2) and an extrusion screw rod (3), characterized in that: The extrusion screw rod (3) is rotatably connected to the extrusion cylinder (2), one end of the extrusion screw rod (3) passes through the extrusion cylinder (2) and is coaxially fixed to the output shaft of the drive motor (1), and the outer wall of the extrusion cylinder (2) at one end close to the drive motor (1) is connected to a feed bin (22); The extrusion screw rod (3) comprises an integrally formed stirring rod section (31), a gradual rod section (32) and an extrusion conveying rod section (33); the diameter of the extrusion conveying rod section (33) is larger than that of the stirring rod section (31); the two ends of the gradual rod section (32) are respectively connected to the stirring rod section (31) and the extrusion conveying rod section (33); the stirring rod section (31) is located at one end of the extrusion cylinder (2) close to the feed bin (22); a plurality of stirring blades (311) are fixed to the outer wall of the stirring rod section (31); spiral blades (331) are fixed to the outer walls of the gradual rod section (32) and the extrusion conveying rod section (33); the outer diameters of the spiral blades (331) on the gradual rod section (32) and the extrusion conveying rod section (33) are the same and remain unchanged; the inner diameter of the spiral blades (331) on the gradual rod section (32) is arranged to increase in a direction close to the extrusion conveying rod section (33).

2. The biochar automatic extrusion molding device according to claim 1 is characterized in that: The outer wall of the extrusion conveying rod section (33) is provided with a movable spiral blade (34); the movable spiral blade (34) has the same inner diameter, outer diameter and pitch as the spiral blade (331) on the extrusion conveying rod section (33); the movable spiral blade (34) can be attached to one side of the spiral blade (331) on the extrusion conveying rod section (33); the movable spiral blade (34) is connected to a movable adjusting member (4); and the movable spiral blade (34) can slide and displace along the axial direction of the extrusion conveying rod section (33) through the movable adjusting member (4).

3. The biochar automatic extrusion molding device according to claim 2 is characterized in that: The movable adjustment member (4) comprises an oil cylinder (41) and an inner cylinder (42); a connecting cavity is provided at one end of the extrusion conveying rod section (33) away from the gradient rod section (32); the inner cylinder (42) is slidably inserted in the connecting cavity and fits with the inner wall of the connecting cavity; a clamping block (43) is fixed to the outer wall of the inner cylinder (42); a sliding groove (332) is provided on the inner wall of the connecting cavity; the sliding groove (332) extends along the axial direction of the extrusion conveying rod section (33); the clamping block (43) is located in the sliding groove ( 332), a connecting shaft (421) is fixed to one end of the inner cylinder (42), and an end of the connecting shaft (421) away from the inner cylinder (42) passes through the extrusion cylinder (2) and is rotatably connected to the output shaft of the oil cylinder (41); the inner wall of the extrusion conveying rod section (33) is provided with a notch (333) along its length direction, a connecting block (44) is slidably connected in the notch (333), and the movable spiral leaf (34) is fixedly connected to the inner cylinder (42) via the connecting block (44).

4. The biochar automatic extrusion molding device according to claim 3 is characterized in that: Blocking pieces (45) are fixed on both sides of the connection block (44), a shielding plate (334) is fixed on the inner wall of the notch (333), and one end of the blocking piece (45) away from the connection block (44) is in contact with the bottom surface of the shielding plate (334).

5. The biochar automatic extrusion molding device according to any one of claims 1 to 4, characterized in that: The end of the extrusion cylinder (2) away from the driving motor (1) is connected to a discharge die head (21), and a cutting mechanism (5) is arranged at the discharge die head (21). The cutting mechanism (5) comprises two arc-shaped cutters (51) arranged opposite to each other. The arc-shaped cutters (51) are attached to the outer wall of the discharge die head (21), and the two arc-shaped cutters (51) can move relative to or away from each other.

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