阅读说明：本技术 一种农作物秸秆制炭成型机 (Crop straw charcoal-making forming machine ) 是由 丁文铃 于 2019-10-19 设计创作，主要内容包括：本发明提供了一种农作物秸秆制炭成型机。它解决了现有秸秆制炭机生产效率低,制炭成型后不稳定容易松散的问题。本发明包括破碎箱,破碎箱的上端固定有秸秆进料斗,秸秆进料斗的上端设置有防尘盖,破碎箱的一侧设置有第一输送带,第一输送带的输出端固定在秸秆进料斗上,破碎箱上设置有除尘装置,破碎箱的下端固定有支架,破碎箱的下端设置有搅拌装置和挤压成型装置,挤压成型装置上设置有炭化装置,挤压成型装置的出料口侧端设置有切断装置,切断装置的下方设置有第二输送带。本发明对秸秆进行连续自动化制炭处理,生产效率高,秸秆粉碎效果好,压制成型效率高,产品稳定性好。(The invention provides a crop straw charcoal-making forming machine. It has solved the low production efficiency of current straw system charcoal machine, and the unstable easy loose problem after system charcoal shaping. The straw crushing device comprises a crushing box, a straw feeding hopper is fixed at the upper end of the crushing box, a dustproof cover is arranged at the upper end of the straw feeding hopper, a first conveying belt is arranged on one side of the crushing box, the output end of the first conveying belt is fixed on the straw feeding hopper, a dust removal device is arranged on the crushing box, a support is fixed at the lower end of the crushing box, a stirring device and an extrusion forming device are arranged at the lower end of the crushing box, a carbonization device is arranged on the extrusion forming device, a cutting device is arranged at the side end of a discharge port of the extrusion forming device, and a second. The invention carries out continuous automatic charcoal making treatment on the straws, and has the advantages of high production efficiency, good straw crushing effect, high compression molding efficiency and good product stability.)

1. The utility model provides a crops straw system charcoal make-up machine, including broken case, a serial communication port, the upper end of broken case is fixed with the straw feeder hopper, the upper end of straw feeder hopper is provided with the shield, one side of broken case is provided with first conveyer belt, the output of first conveyer belt is fixed on the straw feeder hopper, be provided with dust collector on the broken case, the lower extreme of broken case is fixed with the support, the lower extreme of broken case is provided with agitating unit and extrusion device, be provided with the carbomorphism device on the extrusion device, extrusion device's discharge gate side is provided with cutting device, cutting device's below is provided with the second conveyer belt.

2. The crop straw charcoal forming machine according to claim 1, wherein the dust removing device comprises a fan and a dust collecting cloth bag, a dust removing opening is formed in the upper end of the crushing box, an inlet of the fan is communicated with the dust removing opening through a hose, the dust collecting cloth bag is fixed to an outlet of the fan, and a crushed material outlet is formed in the lower end of the crushing box.

3. The crop straw charcoal forming machine according to claim 2, wherein a coarse crushing device and a fine crushing device are arranged in the crushing box.

4. The crop straw charcoal forming machine according to claim 3, wherein the coarse crushing device comprises a coarse grinding roller pair, a first gear pair and a first belt wheel, the coarse grinding roller pair is rotatably connected in the crushing box, one end of the coarse grinding roller pair is in meshing transmission through the first gear pair, the first belt wheel is fixed at the other end of the coarse grinding roller pair, the fine crushing device comprises a fine grinding roller pair, a second gear pair, a second belt wheel and a third belt wheel, the fine grinding roller pair is rotatably connected in the crushing box, the fine grinding roller pair is positioned below the coarse grinding roller pair, one end of the fine grinding roller pair is in meshing transmission through the second gear pair, the second belt wheel and the third belt wheel are fixed at the other end of the fine grinding roller pair, the second belt wheel is connected with the first belt wheel through a belt, a first motor is arranged below the crushing box and fixed on a support, a fourth belt wheel is fixed at the end of an output shaft of the first motor, the fourth belt wheel is connected with the third belt wheel through a belt.

5. The crop straw charcoal forming machine according to claim 2, wherein the stirring device comprises a stirring box body, a second motor, a stirring shaft and a stirring paddle, a crushed material inlet and a feeding port are formed in the upper end of the stirring box body, a turnover cover is fixed to the upper end of the feeding port, the crushed material inlet is fixed to the lower end of the crushed material outlet through a flange, the stirring shaft is horizontally arranged in the stirring box body, the stirring paddle is fixed to the stirring shaft, the second motor is fixed to a support, the stirring shaft is connected with the second motor through belt transmission, a charcoal forming raw material outlet is formed in the lower end of the stirring box body, a rib plate is fixed to the lower portion of the stirring box body, and the rib plate is fixed to the support.

6. The crop straw charcoal forming machine according to claim 5, wherein the extrusion forming device comprises a pressing cylinder, a rotating shaft, a third motor, a supporting bearing set, a helical blade, an extrusion cavity and a forming pipe, the pressing cylinder is provided with a charcoal forming raw material inlet, the charcoal forming raw material inlet is fixed at the lower end of the charcoal forming raw material outlet through a flange, the lower end of the pressing cylinder is fixed with a supporting leg, the rotating shaft is arranged in the pressing cylinder, the supporting bearing set is sleeved on the rotating shaft, both sides of the supporting bearing set are provided with sealing bearings, an inner ring of each sealing bearing is sleeved on the rotating shaft, one end of the pressing cylinder is provided with the third motor, the third motor is fixed on a bracket, one end of the rotating shaft is connected with the third motor through belt transmission, the helical blade is fixed on the rotating shaft, one end of the extrusion cavity is fixed at the other end of the pressing cylinder through a flange, the other end of the rotating shaft is inserted into the extrusion cavity, and the forming pipe is fixed at the other end of the extrusion cavity.

7. The crop straw charcoal forming machine according to claim 6, wherein the helical blade comprises a feeding blade and an extruding blade, and the extruding blade is fixed at one end close to the extruding cavity.

8. The crop straw charcoal forming machine according to claim 7, wherein the thickness ratio of the extrusion blades to the feeding blades is 1.5-2, and the pitch ratio of the extrusion blades to the feeding blades is 0.6-0.8.

9. The crop straw charcoal forming machine as claimed in claim 6, wherein the forming tube is made of silicon carbide material, the carbonizing device is fixed on the forming tube, and the carbonizing device is an annular electric heating plate.

10. The crop straw charcoal forming machine according to claim 1, wherein the cutting device comprises a fourth motor and a cutter, the fourth motor is fixed above the second conveyor belt, the cutter is eccentrically fixed at the end of an output shaft of the fourth motor, and the cutter is a circular blade.

Technical Field

The invention belongs to the technical field of agricultural and sideline product processing, and relates to a charcoal forming machine, in particular to a crop straw charcoal forming machine.

Background

The straw refers to the stem and leaf part of the gramineous crops such as rice, wheat and corn which are left after being ripened and threshed. Before industrialization, straws are often used as living fuel, and burnt ash is used as fertilizer to be returned to the field for treatment, due to popularization of coal, electricity and natural gas and abundance of various industrial products, the requirement of rural areas on straws is reduced, the treatment of a large amount of straws becomes a serious social problem, and many local farmers still directly burn the straws in the fields to cause consequences such as air pollution, fire disasters, incapability of normal rising and falling of airplanes and the like.

The straw charcoal making machine can crush sawdust, branches, rice hulls and crop straws, then the sawdust, the branches, the rice hulls and the crop straws are formed into machine-made charcoal semi-finished products through a forming machine after high-temperature and high-pressure plasticization, and the machine-made charcoal semi-finished products are carbonized through a carbonization furnace to form finished charcoal.

Through retrieval, as chinese patent document discloses an environmental protection straw system charcoal machine [ application number: CN 201721445698.3; publication No.: CN207581730U ]. The charcoal making machine comprises a base and a thermal resistance wire, straws are fully crushed by two crushing shafts, and the crushed straws are uniformly guided into the charcoal making device, so that the condition that the charcoal making machine is blocked by the straws is reduced.

Although the environmental protection straw system charcoal machine that discloses in this patent can be with the straw breakage and carry out system charcoal processing, can solve the easy problem that blocks up of straw system charcoal machine, nevertheless rotate through crushing shaft and smash the straw hinge, thereby the great influence press forming effect of straw granule that obtains leads to unstable easy loose behind the product shaping, and this straw system charcoal machine feed rate speed is slow, and crushing efficiency is low, and production efficiency is low.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a crop straw charcoal forming machine, which aims to solve the technical problems that: how to improve the production efficiency of the carbon product and the stability of the product after molding.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a crops straw system charcoal make-up machine, including broken case, a serial communication port, the upper end of broken case is fixed with the straw feeder hopper, the upper end of straw feeder hopper is provided with the shield, one side of broken case is provided with first conveyer belt, the output of first conveyer belt is fixed on the straw feeder hopper, be provided with dust collector on the broken case, the lower extreme of broken case is fixed with the support, the lower extreme of broken case is provided with agitating unit and extrusion device, be provided with the carbomorphism device on the extrusion device, extrusion device's discharge gate side is provided with cutting device, cutting device's below is provided with the second conveyer belt.

The working principle of the invention is as follows: the straw gets into broken case through first conveyer belt, the straw falls into agitating unit after broken case is broken into likepowder, agitating unit stirs system charcoal raw materials and makes its misce bene, raw materials behind the misce bene get into extrusion device and extrude it into cylindrical finished product and discharge from the discharge gate, the carbomorphism device produces high temperature and makes finished product surface carbomorphism, it is more durable behind the surface carbomorphism, it is loose that difficult fracture is loose, cutting device cuts off the finished product equidistance and falls on the second conveyer belt and carry, straw feeder hopper top sets up the shield, set up dust collector on the broken case, can prevent that the dust that produces from diffusing the workshop among the crushing process, the dust of production is few, help improving workshop environment.

The dust removal device comprises a fan and a dust removal cloth bag, a dust removal opening is formed in the upper end of the crushing box, an inlet of the fan is communicated with the dust removal opening through a hose, the dust collection cloth bag is fixed to an outlet of the fan, and a crushed material outlet is formed in the lower end of the crushing box.

Structure more than adopting, straw can produce a large amount of dusts when smashing, and the dust can be followed the dust removal mouth and by the suction when the fan rotates, discharges into the collection dirt sack, prevents that the dust from flowing into the workshop from broken case feed inlet, and the straw is smashed in the broken case after and is discharged into agitating unit from the crushed aggregates export.

And a coarse crushing device and a fine crushing device are arranged in the crushing box.

Structure more than adopting, straw is broken into the fritter through coarse crushing device, and the device is broken into the likepowder again in small, adopts coarse crushing and the process of smashing in small, and straw crushing effect is good, and crushing efficiency is high, improves the stability after the extrusion.

The coarse crushing device comprises a coarse grinding roller pair, a first gear pair and a first belt wheel, the coarse grinding roller pair is rotatably connected in a crushing box, one end of the coarse grinding roller pair is in meshing transmission through the first gear pair, the first belt wheel is fixed at the other end of the coarse grinding roller pair, the fine crushing device comprises a fine grinding roller pair, a second gear pair, a second belt wheel and a third belt wheel, the fine grinding roller pair is rotatably connected in the crushing box, the fine grinding roller pair is located below the coarse grinding roller pair, one end of the fine grinding roller pair is in meshing transmission through the second gear pair, the second belt wheel and the third belt wheel are fixed at the other end of the fine grinding roller pair, the second belt wheel is connected with the first belt wheel through a belt, the crushing box is provided with a first motor below, the first motor is fixed on a support, the output shaft end of the first motor is fixed with a fourth belt wheel, and the fourth belt wheel is connected with the third belt.

Structure more than adopting, first motor rotates and drives the fourth band pulley and rotate, the fourth band pulley passes through the belt and drives the third band pulley rotation, the third band pulley drives thin grinding roller pair and second band pulley rotation, thin grinding roller pair realizes the rotation in opposite directions through the second gear pair, thin grinding roller pair grinds the straw fragment into likepowder, the second band pulley drives first band pulley through the belt and rotates, first band pulley drives thick grinding roller pair and rotates, thereby thick grinding roller pair realizes the rotation in opposite directions through first gear pair and grinds the straw into the fritter.

Agitating unit includes agitator tank, the second motor, (mixing) shaft and stirring rake, crushed aggregates import and charge door have been seted up to agitator tank's upper end, the upper end of charge door is fixed with flip, the lower extreme at the crushed aggregates export is fixed through the flange in the crushed aggregates import, the (mixing) shaft level sets up in agitator tank, the stirring rake is fixed on the (mixing) shaft, be fixed with the second motor on the support, the (mixing) shaft passes through belt drive and is connected with the second motor, the system charcoal raw materials export has been seted up to agitator tank's lower extreme, agitator tank's below is fixed with the gusset, the gusset is fixed on the support.

Structure more than adopting, entering agitating unit after the straw is smashed, the second motor rotates and drives the (mixing) shaft through belt drive and rotates, and the stirring rake rotates and stirs messenger system charcoal raw materials misce bene to the powder, and the charge door is arranged in adding other crushed aggregates to the agitator tank body, and system charcoal raw materials is discharged into extrusion device from system charcoal raw materials export.

The extrusion forming device comprises a pressing cylinder, a rotating shaft, a third motor, a supporting bearing group, a helical blade, an extrusion cavity and a forming pipe, wherein the pressing cylinder is provided with a charcoal making raw material inlet, the charcoal making raw material inlet is fixed at the lower end of the charcoal making raw material outlet through a flange, the lower end of the pressing cylinder is fixed with a supporting leg, the rotating shaft is arranged in the pressing cylinder, the supporting bearing group is sleeved on the rotating shaft, sealing bearings are arranged on two sides of the supporting bearing group, an inner ring of each sealing bearing is sleeved on the rotating shaft, a third motor is arranged at one end of the material pressing barrel and fixed on the support, one end of the rotating shaft is connected with the third motor through belt transmission, the spiral blade is fixed on the rotating shaft, one end of the extrusion cavity is fixed on the other end of the material pressing barrel through a flange, the extrusion cavity is conical, the other end of the rotating shaft is inserted into the extrusion cavity, and the forming pipe is fixed on the other end of the extrusion cavity.

The spiral blade comprises a feeding blade and an extruding blade, and the extruding blade is fixed at one end close to the extruding cavity.

Structure more than adopting, get into extrusion device behind the system charcoal raw materials stirring, the third motor drives the pivot through the belt drive and rotates, and helical blade rotates and makes the raw materials move right, and the raw materials gets into the extrusion cavity, and under extrusion blade lasts the extrusion effect, the raw materials is crowded into the column in the forming tube to discharge from the forming tube open end.

The thickness ratio of the extrusion blades to the feeding blades is 1.5-2, and the pitch ratio of the extrusion blades to the feeding blades is 0.6-0.8.

The structure more than adopting, the pay-off blade is used for carrying the system charcoal raw materials, and the extrusion blade is used for with raw materials extrusion, and the extrusion blade is thicker than the pay-off blade, and the pitch is less than the pay-off blade, can increase the extrusion power to the raw materials, improves shaping stability.

The forming tube is made of silicon carbide materials, the carbonizing device is fixed on the forming tube, and the carbonizing device is an annular electric heating plate.

By adopting the structure, the forming tube is heated by the carbonizing device, the surface of the columnar finished product is quickly carbonized at high temperature, the silicon carbide material has the characteristics of high temperature resistance and difficult deformation, the forming tube can be continuously carbonized, and the finished product is stable in structure and difficult to loosen due to carbonization.

The cutting device comprises a fourth motor and a cutter, the fourth motor is fixed above the second conveying belt, the cutter is eccentrically fixed at the end part of an output shaft of the fourth motor, and the cutter is a circular blade.

By adopting the structure, the fourth motor rotates to drive the cutter to rotate, the cutter cuts off the carbonized columnar finished products at equal intervals, and the finished products fall on the second conveying belt to be conveyed after being cut off.

Compared with the prior art, the crop straw charcoal forming machine has the following advantages:

1. the invention is composed of a crushing box, a stirring device, an extrusion forming device and a cutting device, wherein the straw is stirred after being coarsely crushed and finely crushed so as to uniformly mix raw materials and then is extruded and formed, the automatic production is realized, the transfer operation is not needed, the production efficiency is high, the straw crushing efficiency is high, and the charcoal making and forming stability is good.

2. The product is carbonized after being extruded and formed, and is cut off at equal intervals, continuous production is carried out, and the product stability is good.

3. Broken case feed inlet department sets up the shield, and upper portion sets up dust collector, avoids the dust to get into the workshop, improves workshop production environment.

4. The devices are connected tightly, the occupied area is small, and the investment cost is low.

Drawings

Fig. 1 is a schematic plan view of the present invention.

Fig. 2 is a schematic view of the internal structure of the crushing box of the present invention.

Fig. 3 is a side view of the crushing box of the present invention.

FIG. 4 is a schematic view showing the internal structure of the stirring apparatus of the present invention.

FIG. 5 is a schematic view showing the internal structure of the extrusion molding apparatus of the present invention.

Fig. 6 is a schematic structural view of the rotating shaft of the present invention.

Fig. 7 is a schematic view of the structure of the cutter according to the present invention.

In the figure, 1, a first conveyor belt; 2. a crushing box; 2a, a coarse crushing device; 2a1, a rough roller pair; 2a2, first gear pair; 2a3, a first pulley; 2b, a fine crushing device; 2b1, fine grinding roller pair; 2b2, second gear set; 2b3, a second pulley; 2b4, a third pulley; 2c, a straw feed hopper; 2d, a first motor; 2e, a fourth pulley; 2f, a dust removal opening; 2g, a crushed aggregate outlet; 3. a dust cover; 4. a dust removal device; 4a, a fan; 4b, a dust collecting cloth bag; 5. a stirring device; 5a, a stirring box body; 5b, a crushed aggregate inlet; 5c, a feed inlet; 5d, a raw material outlet for carbon production; 5e, a second motor; 5f, a stirring shaft; 5g of stirring paddle; 6. a support; 7. an extrusion molding device; 7a, pressing the material cylinder; 7b, a rotating shaft; 7c, a third motor; 7d, supporting the bearing group; 7e, sealing the bearing; 7f, carbon preparation raw material import; 7g, helical blades; 7g1, feeder vanes; 7g2, squeeze blade; 7h, extruding the cavity; 7i, forming a tube; 7j, a support leg; 8. a carbonization device; 9. a cutting device; 9a, a fourth motor; 9b, a cutter; 10. a second conveyor belt; 11. a rib plate.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Please refer to fig. 1-7, this embodiment provides a crop straw charcoal forming machine, which includes a crushing box 2, a straw feeding hopper 2c is fixed at the upper end of the crushing box 2, a dust cover 3 is arranged at the upper end of the straw feeding hopper 2c, a first conveying belt 1 is arranged at one side of the crushing box 2, the output end of the first conveying belt 1 is fixed on the straw feeding hopper 2c, a dust removing device 4 is arranged on the crushing box 2, a bracket 6 is fixed at the lower end of the crushing box 2, a stirring device 5 and an extrusion forming device 7 are arranged at the lower end of the crushing box 2, a carbonization device 8 is arranged on the extrusion forming device 7, a cutting device 9 is arranged at the side end of the discharge port of the extrusion forming device 7, and a second conveying belt.

The dust removal device 4 comprises a fan 4a and a dust removal cloth bag, a dust removal opening 2f is formed in the upper end of the crushing box 2, an inlet of the fan 4a is communicated with the dust removal opening 2f through a hose, a dust collection cloth bag 4b is fixed to an outlet of the fan 4a, and a crushed material outlet 2g is formed in the lower end of the crushing box 2.

Structure more than adopting, straw can produce a large amount of dusts when smashing, and the dust can be followed dust removal mouth 2f and sucked out when fan 4a rotates, discharges into collection dirt sack 4b in, prevents that the dust from flowing into the workshop from broken case 2 feed inlet, and the straw is arranged into agitating unit 5 from crushed aggregates export 2g after smashing in broken case 2.

A coarse crushing device 2a and a fine crushing device 2b are arranged in the crushing box 2.

Structure more than adopting, the straw is broken into the fritter through coarse crushing device 2a, and is broken into the likepowder through fine crushing device 2b again, adopts coarse crushing and fine crushing process to combine, and straw crushing effect is good, and crushing efficiency is high, improves the stability after the extrusion.

The coarse crushing device 2a comprises a coarse grinding roller pair 2a1, a first gear pair 2a2 and a first belt wheel 2a3, the coarse grinding roller pair 2a1 is rotatably connected in the crushing box 2, one end of the coarse grinding roller pair 2a1 is in meshing transmission through the first gear pair 2a2, the first belt wheel 2a3 is fixed at the other end of the coarse grinding roller pair 2a1, the fine crushing device 2b comprises a fine grinding roller pair 2b1, a second gear pair 2b2, a second belt wheel 2b3 and a third belt wheel 2b4, the fine grinding roller pair 2b1 is rotatably connected in the crushing box 2, the fine grinding roller pair 2b1 is positioned below the coarse grinding roller pair 2a1, one end of the fine grinding roller pair 2b1 is in meshing transmission through the second gear pair 2b2, the second belt wheel 2b3 and the third belt wheel 2b4 are fixed at the other end of the fine grinding roller pair 2b1, the second belt wheel 2b 466 is connected with the first belt wheel support 582 a, the first belt wheel support 5732 d 24 d 2 is connected with the first belt wheel 582 d 5736, a fourth pulley 2e is fixed to an end of an output shaft of the first motor 2d, and the fourth pulley 2e is connected to the third pulley 2b4 via a belt.

By adopting the structure, the first motor 2d rotates to drive the fourth belt pulley 2e to rotate, the fourth belt pulley 2e drives the third belt pulley 2b4 to rotate through a belt, the third belt pulley 2b4 drives the fine grinding roller pair 2b1 and the second belt pulley 2b3 to rotate, the fine grinding roller pair 2b1 realizes opposite rotation through the second gear pair 2b2, the fine grinding roller pair 2b1 grinds straw fragments into powder, the second belt pulley 2b3 drives the first belt pulley 2a3 to rotate through a belt, the first belt pulley 2a3 drives the coarse grinding roller pair 2a1 to rotate, and the coarse grinding roller pair 2a1 realizes opposite rotation through the first gear pair 2a2 to grind the straw into small pieces.

Agitating unit 5 includes agitator tank 5a, second motor 5e, (mixing) shaft 5f and stirring rake 5g, crushed aggregates import 5b and charge door 5c have been seted up to agitator tank 5 a's upper end, charge door 5 c's upper end is fixed with flip, crushed aggregates import 5b passes through the flange to be fixed at the lower extreme of crushed aggregates export 2g, the level of (mixing) shaft 5f sets up in agitator tank 5a, stirring rake 5g is fixed on (mixing) shaft 5f, be fixed with second motor 5e on the support 6, stirring shaft 5f is connected with second motor 5e through belt drive, system charcoal raw materials export 5d has been seted up to agitator tank 5 a's lower extreme, agitator tank 5 a's below is fixed with gusset 11, gusset 11 is fixed on support 6.

Structure more than adopting, entering agitating unit 5 after the straw is smashed, second motor 5e rotates and drives (mixing) shaft 5f through belt drive and rotates, and 5g of stirring rake rotate and stir the powder and make system charcoal raw materials misce bene, and charge door 5c is arranged in adding other crushed aggregates to agitator tank 5a, and system charcoal raw materials is followed system charcoal raw materials export 5d and is arranged into extrusion device 7.

The extrusion forming device 7 comprises a pressing cylinder 7a, a rotating shaft 7b, a third motor 7c, a supporting bearing group 7d, a helical blade 7g, an extrusion cavity 7h and a forming pipe 7i, wherein the pressing cylinder 7a is provided with a raw material inlet 7f for making carbon, the raw material inlet 7f for making carbon is fixed at the lower end of the raw material outlet 5d for making carbon through a flange, the lower end of the pressing cylinder 7a is fixed with a supporting leg 7j, the rotating shaft 7b is arranged in the pressing cylinder 7a, the supporting bearing group 7d is sleeved on the rotating shaft 7b, two sides of the supporting bearing group 7d are respectively provided with a sealing bearing 7e, the inner ring of the sealing bearing 7e is sleeved on the rotating shaft 7b, one end of the pressing cylinder 7a is provided with the third motor 7c, the third motor 7c is fixed on the bracket 6, one end of the rotating shaft 7b is connected with the third motor 7c through belt transmission, the helical blade 7g is fixed on the rotating shaft 7b, one end of the extrusion cavity 7h is, the extrusion cavity 7h is conical, the other end of the rotating shaft 7b is inserted into the extrusion cavity 7h, and the forming tube 7i is fixed at the other end of the extrusion cavity 7 h.

The spiral blade 7g comprises a feeding blade 7g1 and a squeezing blade 7g2, and the squeezing blade 7g2 is fixed at one end close to the squeezing cavity 7 h.

Structure more than adopting, get into extrusion device 7 after the system charcoal raw materials stirring, third motor 7c drives pivot 7b through the belt drive and rotates, and helical blade 7g rotates and makes the raw materials carry to forming tube 7i, and the raw materials gets into extrusion cavity 7h, and under extrusion blade 7g2 lasted the extrusion effect, the raw materials is crowded into the column in forming tube 7i to discharge from forming tube 7i open end.

The thickness ratio of the extrusion blade 7g2 to the feeding blade 7g1 is 2, and the pitch ratio of the extrusion blade 7g2 to the feeding blade 7g1 is 0.8.

By adopting the structure, the feeding blade 7g1 is used for conveying the raw material for making the charcoal, the extruding blade 7g2 is used for extruding and molding the raw material, the extruding blade 7g2 is thicker than the feeding blade 7g1, the screw pitch is smaller than the feeding blade 7g1, the extrusion force of the raw material can be increased, and the molding stability is improved.

The forming tube 7i is made of silicon carbide material, the carbonizing device 8 is fixed on the forming tube 7i, and the carbonizing device 8 is an annular electric heating plate.

By adopting the structure, the carbonization device 8 heats the forming tube 7i, the surface of the columnar finished product is quickly carbonized at high temperature, the silicon carbide material has the characteristics of high temperature resistance and difficult deformation, the forming tube 7i can be continuously carbonized, and the carbonized finished product has a stable structure and is difficult to loosen.

The cutting device 9 comprises a fourth motor 9a9a and a cutter 9b, the fourth motor 9a is fixed above the second conveyer belt 10, the cutter 9b is eccentrically fixed at the end part of an output shaft of the fourth motor 9a, and the cutter 9b is a circular blade.

By adopting the structure, the fourth motor 9a rotates to drive the cutter 9b to rotate, the cutter 9b cuts off the carbonized columnar finished products at equal intervals, and the finished products fall on the second conveying belt 10 to be conveyed after being cut off.

The working principle of the invention is as follows: straw is fed into a straw feed hopper 2c through a first conveyor belt 1 and falls into a crushing box 2 from the straw feed hopper 2c, a first motor 2d rotates to drive a fourth belt wheel 2e to rotate, the fourth belt wheel 2e drives a third belt wheel 2b4 to rotate through a belt, the third belt wheel 2b4 drives a fine grinding roller pair 2b1 and a second belt wheel 2b3 to rotate, the fine grinding roller pair 2b1 realizes opposite rotation through a second gear pair 2b2, the second belt wheel 2b3 drives a first belt wheel 2a3 to rotate through a belt, the first belt wheel 2a3 drives a coarse grinding roller pair 2a1 to rotate, the coarse grinding roller pair 2a1 realizes opposite rotation through a first gear pair 2a2, the straw is ground into small blocks through the coarse grinding roller pair 2a1, the crushed straw is ground into powder through a fine grinding roller pair 2b1, the crushed straw is discharged into a stirring device 5 from a crushed material outlet 2g, and the second motor 5e drives a stirring shaft to rotate through a transmission shaft 5f, 5g of stirring paddle rotates to stir the powder to uniformly mix the raw materials for making the carbon, the raw materials for making the carbon are discharged into an extrusion forming device 7 from a raw material outlet 5d for making the carbon, the third motor 7c drives the rotating shaft 7b to rotate through belt transmission, the feeding blade 7g1 rotates to enable the raw material to move rightwards, the raw material enters the extrusion cavity 7h, under the continuous extrusion action of the extrusion blades 7g2, the raw material is extruded into a cylindrical shape in the forming tube 7i, and is discharged from the open end of the forming tube 7i, the forming tube 7i is heated by the carbonizing device 8, the surface of the columnar finished product is quickly carbonized at high temperature, the silicon carbide material has the characteristics of high temperature resistance and difficult deformation, the forming tube 7i can be continuously carbonized, the structure of the finished product is stable and difficult to loosen due to the carbonization treatment, the fourth motor 9a rotates to drive the cutter 9b to rotate, the cutter 9b cuts the carbonized columnar finished product at equal intervals, and the finished product falls on the second conveying belt 10 to be conveyed after being cut.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.