CN215799326U - Straw carbonizing device - Google Patents

Abstract

A straw carbonization device comprises a reaction kettle, a feeding device, a variable-volume compressor, a material separating disc, a cooling device and a gas-liquid separation device; a heat preservation stove is arranged on the periphery of the reaction kettle, and a gap is formed between the heat preservation stove and the side wall of the reaction kettle; the variable-volume compressor is positioned at the upper end of the reaction kettle and is communicated with the reaction kettle, a feed inlet is arranged on the variable-volume compressor, the feed inlet is connected with one end of the feeding device, and the other end of the feeding device is connected with the straw material; the material separating disc is positioned below the variable-volume compressor and is positioned at the position of the reaction kettle close to the end cover; the cooling device is positioned at the lower part of the reaction kettle and is provided with two sections of cooling structures; the gas-liquid separation device is provided with a wood gas discharge pipeline, a gas return pipeline and a gas loop channel which are communicated with the heat preservation stove. The straw carbonization device has the advantages that the feed inlet is not easily blocked, the feed amount can be increased, the dispersion is uniform, the heat can be recycled, and the straw carbonization device can be effectively cooled.

Description

Straw carbonizing device

Technical Field

The application relates to the technical field of straw carbonization, in particular to a straw carbonization device.

Background

The straw is a crop with large yield, a large amount of straw can be produced in the harvest season every year, the straw can not be directly combusted, the yield is large, the straw is not convenient to use as compost, the straw can be fully recycled at best along with the aggravation of environmental pollution, and therefore the post-processing and retreatment of the straw become the technical problem to be solved urgently.

At present, in order to effectively utilize straws, improve the use value of the straws and reduce the environmental pressure problem of the straws, the straws are carbonized to obtain renewable energy which can replace coal, and a carbonization device in the prior art directly enters from a material port to be downwards transported under the action of self gravity when feeding materials in the structure, but the straws are loose and light, so that the material receiving port is easily blocked, and the feeding amount is limited due to excessive looseness; in addition, the direct feeding mode also causes uneven distribution of the straws after the straws enter the carbonization furnace, and some straws are piled up in lumps and only a small amount of straws are arranged in some places, so that the straws in the piled places are not carbonized thoroughly in the later carbonization processing process and the straws in the small amount of straws are distributed in transitional carbonization; in addition, the carbonized product needs to be cooled and discharged, the traditional cooling mode is very simple, namely the carbonized material is directly cooled by the carbonization furnace and then discharged from the bottom or is cooled by buffering of a cooling box, and the cooling modes cause slow cooling speed, occupy long period of the carbonization furnace and are not beneficial to improving the production efficiency; in addition, the high-temperature wood gas after traditional carbonization is directly emptied, so that the environment is polluted, and high-temperature energy is directly wasted and cannot be effectively utilized.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a be difficult to butt joint material mouth and cause the jam, and can improve the feeding volume, the material disperses evenly in the carbomorphism device, can heat cyclic utilization and can effectively refrigerated straw carbomorphism device.

In order to solve the technical problem, the technical scheme adopted by the application is as follows: a straw carbonization device comprises a reaction kettle, a feeding device, a variable-volume compressor, a material separating disc, a cooling device and a gas-liquid separation device; a heat preservation stove is arranged on the periphery of the reaction kettle, a gap is formed between the heat preservation stove and the side wall of the reaction kettle, and a fire plate is arranged in the heat preservation stove and below the reaction kettle; the variable-volume compressor is positioned at the upper end of the reaction kettle and is communicated with the reaction kettle, a material receiving port is arranged on the variable-volume compressor, the material receiving port is connected with one end of the feeding device, and the other end of the feeding device is connected with the straw material; the material separating disc is positioned below the variable-volume compressor and is positioned at the position of the reaction kettle close to the end cover; the cooling device is positioned at the lower part of the reaction kettle and is provided with two sections of cooling structures; the gas-liquid separation device is connected with the reaction kettle through a wood gas leading-in pipe, and a biomass gas leading-out pipe is arranged on the gas-liquid separation device and communicated with the heat preservation stove.

By adopting the structure, the straw is conveyed into the variable-volume compressor through the conveying device, and the variable-volume compressor can extrude, roll and convey the straw, so that the mixing of the straw and the conveying capacity can be effectively improved, and the conveying speed of the straw can be improved under the action of the variable-volume compressor; then the straw is compressed by the variable-volume compressor and is conveyed to the inlet of the carbonization furnace, the straw is scattered to a certain degree at the inlet of the carbonization furnace, the scattered straw falls on the material separating plate, and the material separating plate changes the falling path of the material, so that the straw uniformly falls on the bottom of the carbonization furnace in an annular shape, the condition of non-uniform accumulation or dispersion is avoided, and the guarantee is provided for uniform carbonization at the later stage; the cooling device has a two-section cooling structure, so that rapid cooling can be realized, and the cooling efficiency is improved; in addition, this application is handled high temperature wooden gas through gas-liquid separation device, and the liquid of obtaining is fully retrieved, and gaseous then recycles once more and gets into the burning and heat the kitchen range in the heat preservation kitchen range, has realized the whole resource utilization of straw carbomorphism process resultant, has improved thermal make full use of rate.

Preferably, the variable-volume compressor comprises a shell, the upper end of the shell is provided with a material receiving port, the material receiving port is connected with one end of the feeding device, the middle part of the shell is provided with a compression roller, and the compression roller is transversely arranged in the shell; the discharge side of the compression roller is communicated with a feed inlet of the reaction kettle; by adopting the structure, the straw can be mixed and compressed through the transverse roller, and can be automatically fed, so that the feeding speed and the feeding amount are effectively improved.

Preferably, one side of the lower outlet of the compression roller is provided with a detachable baffle plate, and the detachable baffle plate is used for sealing the shell and the feed inlet of the reaction kettle; adopt this structure, dismantlement baffle that can be nimble, if the compression gyro wheel takes place to block up, can be timely effectual clears up through dismantling the baffle.

Preferably, the compression roller comprises a spring tooth shaft and spring teeth arranged on the spring tooth shaft, wherein four rows of the spring teeth are arranged and radially extend and are distributed along the spring tooth shaft; by adopting the structure, the straw can be effectively compressed and conveyed, so that the conveying capacity and the conveying efficiency are improved.

Furthermore, a spring tooth sleeve is arranged on the spring tooth shaft, the spring tooth is sleeved in the spring tooth sleeve, a telescopic spring is further arranged in the spring tooth sleeve, and the spring tooth is sleeved in the telescopic spring; by adopting the structure, after the straws enter the variable-volume compressor, the straws are extruded and conveyed along with the rotation of the elastic tooth shaft, the elastic teeth can be compressed and released, and the elastic teeth can realize the telescopic action in the elastic tooth sleeve under the driving of the telescopic spring, so that the straws also have a compression and release process, therefore, the straws can be effectively beaten and extruded, and the straws are conveniently conveyed.

Preferably, the material separating plate comprises a side plate connected with the top cover of the reaction kettle, the side plate is circular, is circumferentially arranged below the top cover of the reaction kettle, and has an inner diameter larger than the diameter of the feed inlet; by adopting the structure, the straw can be scattered to a certain degree at the feed inlet of the carbonization furnace, the scattered straw falls on the material separate tray, and the drainage plate of the material separate tray can change the falling path of the material, so that the straw uniformly falls on the bottom of the carbonization furnace along the arc plate and the ring which are arched in the middle.

Further, the distance between the drainage plate and the inner wall of the furnace cover is 30 cm; by adopting the structure, the straw can be guaranteed to be scattered to a certain degree when falling to the drainage plate, and the scattered straw can be effectively made to enter the reaction kettle.

Preferably, the gas-liquid separation device comprises a gas-liquid separation inner tank and a gas-liquid separation outer tank, the bottom of the gas-liquid separation inner tank is communicated with the bottom of the gas-liquid separation outer tank, the gas-liquid separation inner tank is connected with a biomass gas leading-out pipe and a wood gas leading-in pipe, and the gas-liquid separation outer tank is connected with a wood liquid leading-out pipe; adopt above-mentioned structure, the gas-liquid separation jar is two-layer inside and outside, and the bottom intercommunication, gas-liquid separation jar are equipped with liquid water, and when wooden gas was leading-in to the gas-liquid separation jar, wooden tar, the pyrolkigneous liquid in the wooden gas dissolved in the liquid, and remaining biomass combustible gas gathers on retort bucket upper portion, through the biomass gas delivery pipe, carries the carbomorphism stove fire dish, realizes biomass gas backfire heating retort.

Further, a communicating hole is formed in the side wall, close to the bottom, of the gas-liquid separation inner tank, the communicating hole is communicated with the gas-liquid separation outer tank, liquid water (absorption liquid for dissolving wood tar and wood vinegar) is arranged in the gas-liquid separation outer tank, and the height of the liquid water is higher than that of the communicating hole; by adopting the structure, the wood gas can be smoothly guided into the liquid water, the wood tar and the wood vinegar are dissolved, the wood tar and the wood vinegar are separated from the wood gas, the height of the liquid water is higher than that of the communicating hole, and the wood gas is prevented from being discharged from the outer tank through the communicating hole.

Further, the wood gas inlet pipe extends from the top of the gas-liquid separation inner tank to the inside and is in contact with the liquid water, and the height of the wood gas inlet pipe in the gas-liquid separation inner tank is higher than that of the communicating hole; by adopting the structure, the gas can be effectively and fully contacted with the liquid water, so that the wood tar and the wood vinegar are ensured to be dissolved in the liquid water; in addition, the wood gas can be prevented from being discharged and lost from the communicating holes due to the fact that the wood gas introducing pipe is too low.

Further, the height of the gas-liquid separation inner tank is higher than that of the gas-liquid separation outer tank, and the biomass gas guide-out pipe is connected to the top of the gas-liquid separation inner tank; by adopting the structure, the biomass combustible gas can be gathered and generate pressure on the upper part of the gas-liquid separation inner tank, can be smoothly guided out from the biomass gas guide pipe on the upper part, and then is conveyed to the fire plate of the carbonization furnace through the biomass gas guide pipe.

Further, the discharge end of the wood liquid delivery pipe is connected with the wood vinegar purifying device, and the discharge end of the wood liquid delivery pipe is positioned at the upper part of the wood vinegar purifying device; by adopting the structure, the pyroligneous liquor is electrically heated in the pyroligneous liquor purifying device, the pyroligneous liquor is gasified after reaching a certain temperature, the gasified pyroligneous liquor is cooled at the top end of the purifying device, the cooled pyroligneous liquor is collected by the pyroligneous liquor reflux tank and flows into the pyroligneous liquor collecting box through a pipeline, and the main component of the purified pyroligneous liquor is wood tar which flows into the wood tar collecting box through the wood tar discharge valve.

Further, the upper part of the pyroligneous liquor purifying device is connected with a pyroligneous liquor guide pipe which is communicated with a pyroligneous liquor collecting box, and the lower part of the pyroligneous liquor purifying device is connected with a wood tar discharging valve which is communicated with the wood tar collecting box.

Further, the pyroligneous liquor guide pipe is composed of a first guide section and a second guide section, one end of the first guide section is connected with a cooling cover of the pyroligneous liquor purification device, the other end of the first guide section is connected with the second guide section, the connecting end of the first guide section and the cooling cover is higher than the connecting end of the second guide section, a pyroligneous liquor guide groove is arranged in the cooling cover, the outlet of the pyroligneous liquor guide groove is connected with the first guide section, and the outlet end of the pyroligneous liquor guide groove is lower than the inlet end of the pyroligneous liquor guide groove; the tail end of the second diversion section is connected with the pyroligneous liquid collecting box. By adopting the structure, the pyroligneous liquid is cooled in the cooling cover and then enters the diversion trench, and the diversion trench is high at one end and low at the other end, so that the pyroligneous liquid can flow out fully; the wood vinegar liquid guide pipe is arranged into two sections, so that wood vinegar liquid is conveniently introduced into the wood vinegar liquid collecting box.

Further, a heat insulation layer is arranged on the pyroligneous liquor purification device, the heat insulation layer is positioned on the outer side wall of the pyroligneous liquor purification device, a heating space is formed between the heat insulation layer and the outer side wall of the pyroligneous liquor purification device, and a heating resistor is arranged in the heating space; by adopting the structure, the pyroligneous acid purifying device can be effectively heated, and the operation is convenient.

Preferably, the cooling device comprises a first discharge pipe and a second discharge pipe; one end of the first discharging pipe is connected with a discharging port of the reaction kettle, the other end of the first discharging pipe is connected with the second discharging pipe, a primary cooling pipeline is arranged on the first discharging pipe, and a hollow pipe is arranged in the first discharging pipe; the second discharging pipe on be provided with second grade cooling tube, the inside of second discharging pipe is provided with the discharge gate and the spiral feeder of spiral feeder, first discharging pipe and accepts mutually, spiral feeder's discharge gate and coke collection box accept mutually. Adopt above-mentioned structure, can carry out the primary cooling with the coke, then get into and carry out the second grade cooling and carry to the second discharging pipe, this kind of setting can improve fast cooling time and shorten the cooling cycle, and transport efficiency is high moreover.

Preferably, the first discharge pipe comprises a vertical part and an inclined part, one end of the vertical part is connected with a discharge hole of the reaction kettle, and the other end of the vertical part is connected with the inclined part; the discharge end of the inclined part is connected with a second discharge pipe; by adopting the structure, the coke can be effectively guided to fall into the first discharge pipe quickly for primary cooling, and the cooling efficiency is improved.

Furthermore, the primary cooling pipeline comprises a primary cooling inlet pipe and a primary cooling outlet pipe, the primary cooling inlet pipe is positioned on the inclined part, the primary cooling outlet pipe is positioned on the vertical part, the primary cooling inlet pipe is positioned at the downstream, and the primary cooling outlet pipe is positioned at the upstream; with the above structure, the coke enters the vertical portion and then rapidly falls into the inclined portion, and the downward sliding speed of the coke in the inclined portion is slowed down and is cooled relatively sufficiently.

Furthermore, the first discharge pipe comprises a first inner pipe and a first outer pipe, the first outer pipe is sleeved outside the first inner pipe, a space for accommodating a cooling medium is formed between the first inner pipe and the first outer pipe, the length of the first outer pipe is smaller than that of the first inner pipe, and the primary cooling inlet pipe and the primary cooling outlet pipe are arranged on the first outer pipe and are communicated with the space for accommodating the cooling medium; by adopting the structure, the cooling medium can be circularly pumped into the space formed between the first inner pipe and the first outer pipe, and the coke can be effectively cooled for the first time.

Furthermore, the second discharge pipe comprises a second inner pipe and a second outer pipe, the second outer pipe is sleeved outside the second inner pipe, a space for accommodating a cooling medium is formed between the second inner pipe and the second outer pipe, the length of the second outer pipe is smaller than that of the second inner pipe, the second cooling pipeline comprises a secondary cooling inlet pipe and a secondary cooling outlet pipe, and the secondary cooling inlet pipe and the secondary cooling outlet pipe are both arranged on the second outer pipe and are communicated with the space for accommodating the cooling medium; adopt this structure, can carry out secondary cooling and transmission with the coke from first discharging pipe, realize the quick secondary cooling to the coke.

Further, the screw feeder include screw rod and driving motor, the screw rod set up in the second inner tube, driving motor set up in the upper end of second inner tube, its output shaft links to each other and drives with the screw rod circumferential direction rotatory, be provided with the helical tooth on the screw rod, the helical tooth be used for driving the coke and carry to the coke export. By adopting the structure, the coke is driven to discharge in a screw and spiral tooth mode, so that the coke can be effectively contacted with a cooling medium, and the cooling and heat releasing operation as soon as possible is realized.

Furthermore, the secondary cooling inlet pipe is positioned at the downstream of the second discharge pipe, and the secondary cooling outlet pipe is positioned at the upstream of the second discharge pipe; the downstream end of the second discharging pipe is connected with the first discharging pipe, and the upstream end of the second discharging pipe is connected with the coke collecting tank. By adopting the structure, the coke can be effectively transported in the second discharge pipe, and meanwhile, the rapid cooling can be realized.

Drawings

FIG. 1 is a schematic structural view of a straw carbonization apparatus of the present application.

FIG. 2 is a schematic structural view of a cross-sectional view of a straw carbonization apparatus of the present application.

Fig. 3 is a schematic structural view of the variable volume compressor of the present application.

FIG. 4 is a schematic structural view of the cross-sectional view B-B of FIG. 3 of the present application.

FIG. 5 is a partially enlarged view of the compression roller of the present application.

Fig. 6 is a schematic structural view of the material distribution plate of the present application.

Fig. 7 is a schematic structural view of the gas-liquid separation device of the present application.

FIG. 8 is a schematic view showing a sectional structure of a gas-liquid separator in D-D.

Fig. 9 is a schematic view showing the structure of a pyroligneous acid purification apparatus of the present application.

Fig. 10 is a schematic view showing a sectional structure of pyroligneous acid refining apparatus according to the present application.

Fig. 11 is a schematic view of the structure of the cooling device of the present application.

Fig. 12 is a schematic cross-sectional structural view of a cooling device of the present application.

FIG. 13 is a schematic structural view of a reaction vessel of the present application (heat-insulating furnace not shown).

As shown in the attached drawings: a. a material receiving port, 1, a reaction kettle, 1.1, a heat preservation stove, 1.2, a fire disc, 1.3, a material inlet, 2, a material loading device, 3, a variable volume compressor, 3.1, a shell, 3.2, a compression roller, 3.21, a spring gear shaft, 3.22, spring teeth, 3.23, a spring tooth sleeve, 3.3, an outlet, 3.4, a detachable baffle, 4, a material distribution disc, 4.1, a side plate, 4.2, a drainage plate, 4.3, a gap, 5, a cooling device, 5.1, a first material outlet pipe, 5.11, a first-stage cooling pipeline, 5.111, a first-stage cooling inlet pipe, 5.112, a first-stage cooling outlet pipe, 5.12, a vertical part, 5.13, an inclined part, 5.14, a first inner pipe, 5.15, a first outer pipe, 5.2, a second material outlet pipe, 5.21, a second-stage cooling inlet pipe, 5.211, a second-stage cooling inlet pipe, a second-stage 5.212, a second-stage cooling inlet pipe, 5.22, a spiral screw-screw device, a second screw-type separation device, a gas-liquid separation device, a screw-liquid separation device, 6.1. the wood vinegar purifying device comprises a gas-liquid separation inner tank, a 6.2 gas-liquid separation outer tank, a 6.3 communicating hole, a 7 expansion spring, a 8 biomass gas outlet pipe, a 9 wood gas inlet pipe, a 10 wood liquid outlet pipe, a 11 wood vinegar purifying device, a 11.1 wood vinegar guiding pipe, a 11.11 first guiding section, a 11.12 second guiding section, a 11.2 wood tar discharging valve, a 11.3 wood vinegar guiding groove, a 11.4 heat insulation layer, a 11.5 heating resistor, a 12 wood vinegar collecting box, a 13 wood tar collecting box and a 14 coke collecting box.

Detailed Description

The drawings and the following description depict specific embodiments of the application to teach those skilled in the art how to make and use the best mode of the application. For the purpose of teaching inventive principles, some conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations from these embodiments that fall within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the present application. Thus, the present application is not limited to the specific embodiments described below, but only by the claims and their equivalents.

The straw carbonization device shown in the attached figures 1-4 comprises a reaction kettle 1, a feeding device 2, a variable-volume compressor 3, a material separating disc 4, a cooling device 5 and a gas-liquid separation device 6; a heat preservation stove 1.1 is arranged on the periphery of the reaction kettle 1, a gap is formed between the heat preservation stove 1.1 and the side wall of the reaction kettle 1, and a fire plate 1.2 is arranged in the heat preservation stove 1.1 and below the reaction kettle; the variable-volume compressor 3 is positioned at the upper end of the reaction kettle 1 and is communicated with the reaction kettle 1, a material receiving port a is arranged on the variable-volume compressor 3, the material receiving port a is connected with one end of the feeding device 2, and the other end of the feeding device 2 is connected with the straw material; the material separating disc 4 is positioned below the variable-volume compressor 3 and is positioned at the position of the reaction kettle 1 close to the end cover; the cooling device 5 is positioned at the lower part of the reaction kettle, and the cooling device 5 is provided with two sections of cooling structures; the gas-liquid separation device 6 is connected with the reaction kettle 1 through a wood gas leading-in pipe 9, a biomass gas leading-out pipe 8 is arranged on the gas-liquid separation device 6, and the biomass gas leading-out pipe 8 is communicated with a heat preservation stove 1.1. The feeding device of this application is belt conveyor structure, through the rotatory straw of driving motor belt pulley carry connect the material mouth to enter into the limit to mention the compressor.

By adopting the structure, the straw is conveyed into the variable-volume compressor through the conveying device, and the variable-volume compressor can extrude, roll and convey the straw, so that the mixing of the straw and the conveying capacity can be effectively improved, and the conveying speed of the straw can be improved under the action of the variable-volume compressor; then the straw is compressed by the variable-volume compressor and is conveyed to the inlet of the carbonization furnace, the straw is scattered to a certain degree at the inlet of the carbonization furnace, the scattered straw falls on the material separating plate, and the material separating plate changes the falling path of the material, so that the straw uniformly falls on the bottom of the carbonization furnace in an annular shape, the condition of non-uniform accumulation or dispersion is avoided, and the guarantee is provided for uniform carbonization at the later stage; the cooling device has a two-section cooling structure, so that rapid cooling can be realized, and the cooling efficiency is improved; in addition, this application handles the wooden gas of high temperature through gas-liquid separation device, and the liquid of obtaining is fully retrieved, and gaseous then recycles once more and heats the kitchen range in getting into the heat preservation kitchen range, has effectively improved thermal make full use of rate.

As shown in fig. 2, the variable-volume compressor 3 described in the present application includes a casing 3.1, a material receiving opening a is formed at the upper end of the casing 3.1, the material receiving opening a is connected with one end of the feeding device 2, a compression roller 3.2 is arranged in the middle of the casing 3.1, and the compression roller 3.2 is transversely (axially and horizontally arranged in the casing) arranged in the casing 3.1; the discharge side (outlet 3.3) of the compression roller 3.2 is communicated with the feed inlet 1.3 of the reaction kettle 1; by adopting the structure, the straw can be mixed and compressed through the transverse roller, and can be automatically fed, so that the feeding speed and the feeding amount are effectively improved. Specifically, the upper end of the shell is provided with an open material receiving port which is connected with the discharge end of the feeding device, and straws are introduced into the variable-volume compressor; the shell is also provided with a cylindrical accommodating cavity for accommodating the compression roller, and the compression roller is transversely arranged in the accommodating cavity; by adopting the structure, the straw can be mixed and compressed through the transverse roller, and can be automatically fed, so that the feeding speed and the feeding amount are effectively improved.

As shown in fig. 2-5, a detachable baffle 3.4 is disposed at one side of the lower outlet of the compression roller 3.2, and the detachable baffle 3.4 is used for sealing between the housing 3.1 and the feeding port 1.3 of the reaction kettle 1 (i.e. the detachable baffle is used for shielding one side of the housing at the discharging port of the compression roller and shielding the feeding port of the reaction kettle); by adopting the structure, the baffle can be flexibly disassembled, and if the compression roller is blocked, the baffle can be timely and effectively cleaned through disassembling; can adopt the mode of round pin axle to be connected the realization between removable baffle and the casing, removable baffle can realize the upset under the effect of round pin axle to can expose compression roller discharge side, conveniently clear up the structure that blocks up, perhaps directly dismantle the baffle also can.

As shown in fig. 3-5, the compression roller 3.2 of the present application includes a spring tooth shaft 3.21 and spring teeth 3.22 disposed on the spring tooth shaft 3.21, where the spring teeth 3.22 are disposed in four rows and distributed along the spring tooth shaft 3.21 in a radial direction; specifically, the elastic teeth are multiple and uniformly distributed in four rows along the radial direction of the elastic tooth shaft, and the elastic teeth in each row extend along the axial length direction of the elastic tooth shaft; by adopting the structure, the straw can be effectively compressed and conveyed, so that the conveying capacity and the conveying efficiency are improved.

As shown in fig. 5, an elastic tooth sleeve 3.23 is arranged on an elastic tooth shaft 3.21, the elastic tooth 3.22 is sleeved in the elastic tooth sleeve 3.23, a telescopic spring 7 is further arranged in the elastic tooth sleeve 3.23, and the elastic tooth 3.22 is sleeved in the telescopic spring 7 and can be stretched back and forth along with the telescopic spring (specifically, the elastic tooth is provided with a large-diameter part, a stop part is arranged at a position corresponding to the elastic tooth sleeve, so that the elastic tooth is prevented from being separated from the elastic tooth sleeve when the elastic tooth moves in a telescopic manner along with the telescopic spring in the elastic tooth sleeve); specifically, one end of the elastic tooth shaft is provided with a driving motor, and an output shaft of the driving motor is connected with the elastic tooth shaft to drive the elastic tooth shaft to rotate circumferentially, so that elastic teeth on the elastic tooth shaft are driven to rotate, and operations such as extrusion and beating of straws are realized; by adopting the structure, after the straws enter the variable-volume compressor, the straws are extruded and conveyed along with the rotation of the elastic tooth shaft, the elastic teeth can be compressed and released, and the elastic teeth can realize the telescopic action in the elastic tooth sleeve under the driving of the telescopic spring, so that the straws also have a compression and release process, therefore, the straws can be effectively beaten and extruded, and the straws are conveniently conveyed.

As shown in the attached drawings 2 and 6, the material separate placing plate 4 comprises a side plate 4.1 (located on the inner side wall of the top cover) connected with the top cover of the reaction kettle 1, the side plate 4.1 is circular, is circumferentially arranged below the top cover of the reaction kettle, and has an inner diameter larger than the diameter of the feed inlet, a drainage plate 4.2 is arranged inside the circular side plate 4.1, the drainage plate 4.2 is an arc-shaped plate (also a circular plate with a raised middle part), a gap for straws to fall is arranged between the drainage plate 4.2 and the circular side plate 4.1 (the side plate 4.1 and the drainage plate 4.2 are connected through a connecting rod, one or more connecting rods are arranged according to the connection strength requirement, and are uniformly distributed along the circumferential direction when a plurality of connecting rods are arranged); by adopting the structure, the straw can be scattered to a certain degree at the feed inlet of the carbonization furnace, the scattered straw falls on the material separate tray, and the drainage plate of the material separate tray can change the falling path of the material, so that the straw uniformly falls on the bottom of the carbonization furnace along the arc plate and the ring which are arched in the middle.

As shown in the attached drawings 2 and 6, the distance between the drainage plate 4.2 and the inner wall of the furnace cover is 30 cm; by adopting the structure, the straw can be guaranteed to be scattered to a certain degree when falling to the drainage plate, and the scattered straw can be effectively made to enter the reaction kettle.

As shown in fig. 1-2 and 7-8, the gas-liquid separation device 6 of the present application includes a gas-liquid separation inner tank 6.1 and a gas-liquid separation outer tank 6.2, the bottom of the gas-liquid separation inner tank 6.1 and the bottom of the gas-liquid separation outer tank 6.2 are communicated with each other, the gas-liquid separation inner tank 6.1 is connected with a biomass gas outlet pipe 8 and a wood gas inlet pipe 9 (the wood gas inlet pipe is communicated with an end cover of a reaction kettle), and the gas-liquid separation outer tank 6.2 is connected with a wood liquid outlet pipe 10; adopt above-mentioned structure, the gas-liquid separation jar is two-layer inside and outside, and the bottom intercommunication, gas-liquid separation jar are equipped with liquid water, and when wooden gas was leading-in to the gas-liquid separation jar, wooden tar, the pyrolkigneous liquid in the wooden gas dissolved in the liquid, and remaining biomass combustible gas gathers on retort bucket upper portion, through the biomass gas delivery pipe, carries the carbomorphism stove fire dish, realizes biomass gas backfire heating retort.

As shown in fig. 8, a communicating hole 6.3 is formed in a side wall of the gas-liquid separation inner tank 6.1 close to the bottom, the communicating hole 6.3 is communicated with the gas-liquid separation outer tank 6.2, liquid water is arranged in the gas-liquid separation outer tank, and the height of the liquid water is higher than that of the communicating hole 6.3 (the liquid water is distributed in the inner tank and the outer tank through the connecting holes so as to absorb and dissolve wood tar and wood vinegar in wood gas); by adopting the structure, the wood gas can be smoothly guided into the liquid water, the dissolution of the wood tar and the wood vinegar is realized, the wood tar and the wood vinegar are separated from the wood gas, the height of the liquid water is higher than that of the communicating hole, and the wood gas is prevented from being directly emptied through the outer tank.

As shown in fig. 8, the wood gas inlet pipe 9 of the present application extends from the top of the gas-liquid separation inner tank 6.1 to the inside and contacts with the liquid water, and the height of the wood gas inlet pipe 9 in the gas-liquid separation inner tank 6.1 is higher than the height of the communication hole 6.3; by adopting the structure, the gas can be effectively and fully contacted with the liquid water, so that the wood tar and the wood vinegar are dissolved in the liquid water (the contact can be inserted into the liquid or is not separated from the liquid surface); in addition, the wood gas can be prevented from being discharged and lost from the communicating holes due to the fact that the wood gas introducing pipe is too low.

As shown in fig. 7-8, the height of the inner gas-liquid separation tank 6.1 is higher than that of the outer gas-liquid separation tank 6.2, and the biomass gas outlet pipe 8 is connected to the top of the inner gas-liquid separation tank 6.1; by adopting the structure, the biomass combustible gas can be gathered at the upper part of the gas-liquid separation inner tank, can be smoothly guided out from the biomass gas guide pipe at the upper part, and then is conveyed to the fire plate of the carbonization furnace through the biomass gas guide pipe.

As shown in fig. 1-2, a wood liquid outlet pipe 10 is connected to the gas-liquid separation outer tank 6.2, a discharge end of the wood liquid outlet pipe 10 is connected to the pyroligneous acid purification device 11, and a discharge end of the wood liquid outlet pipe 10 is located at an upper portion of the pyroligneous acid purification device 11; by adopting the structure, the pyroligneous liquor is electrically heated in the pyroligneous liquor purifying device, the pyroligneous liquor is gasified after reaching a certain temperature, the gasified pyroligneous liquor is cooled at the top end of the purifying device, the cooled pyroligneous liquor is collected by the pyroligneous liquor reflux tank and flows into the pyroligneous liquor collecting box through a pipeline, and the main component of the purified pyroligneous liquor is wood tar which flows into the wood tar collecting box through the wood tar discharge valve.

As shown in fig. 9-10, the upper part of the pyroligneous liquor purifying device 11 of the present application is connected with a pyroligneous liquor guide pipe 11.1, the pyroligneous liquor guide pipe 11.1 is communicated with a pyroligneous liquor collecting box 12, the lower part of the pyroligneous liquor purifying device 11 is connected with a wood tar discharging valve 11.2, and the wood tar discharging valve 11.2 is communicated with a wood tar collecting box 13.

As shown in fig. 10, the pyroligneous liquor guiding pipe 11.1 of the present application is composed of a first guiding section 11.11 and a second guiding section 11.12, wherein one end of the first guiding section is connected with the cooling cover of the pyroligneous liquor purifying device, the other end of the first guiding section is connected with the second guiding section, and the connecting end of the first guiding section and the cooling cover is higher than the connecting end of the second guiding section (i.e. the connecting end of the first guiding section and the cooling cover is higher than the connecting end of the first guiding section and the second guiding section), a pyroligneous liquor guiding groove 11.3 is arranged in the cooling cover, the outlet of the pyroligneous liquor guiding groove 11.3 is connected with the first guiding section 11.11, and the outlet end of the pyroligneous liquor guiding groove 11.3 is lower than the inlet end thereof (i.e. the height of the other end of the pyroligneous liquor guiding groove opposite to the connecting end of the first guiding section is lower, so that the collected pyroligneous liquor can conveniently flow into the first guiding section); the tail end of the second diversion section 11.12 is connected with the pyroligneous liquor collecting box 12. By adopting the structure, the pyroligneous liquid is cooled in the cooling cover and then enters the diversion trench, and the diversion trench is high at one end and low at the other end, so that the pyroligneous liquid can flow out fully; the pyroligneous liquor guide pipe is arranged into two sections, so that the pyroligneous liquor can be conveniently introduced into the pyroligneous liquor collecting box; the diversion trench is a ring-shaped collecting trench surrounding the inner side wall of the cooling cover of the pyroligneous liquor purifying device, and the side of the collecting trench far away from the diversion tube is higher than the side connected with the diversion tube, so that the pyroligneous liquor can flow conveniently.

As shown in fig. 10, a heat insulation layer 11.4 is arranged on the pyroligneous liquor purifying device 11, the heat insulation layer 11.4 is positioned on the outer side wall of the pyroligneous liquor purifying device, a heating space is formed between the heat insulation layer and the outer side wall of the pyroligneous liquor purifying device, and a heating resistor 11.5 is arranged in the heating space; by adopting the structure, the pyroligneous acid purifying device can be effectively heated, and the operation is convenient.

As shown in fig. 1-2 and 11-12, the cooling device 5 according to the present application comprises a first tapping pipe 5.1, a second tapping pipe 5.2; one end of the first discharging pipe 5.1 is connected with a discharging hole of the reaction kettle 1, the other end of the first discharging pipe 5.1 is connected with the second discharging pipe 5.2, a primary cooling pipeline 5.11 is arranged on the first discharging pipe 5.1, and a hollow pipe is arranged in the first discharging pipe 5.1; the second discharging pipe 5.2 is provided with a secondary cooling pipeline 5.21, the second discharging pipe 5.2 is internally provided with a spiral feeder 5.22, a discharging port of the first discharging pipe 5.1 is connected with the spiral feeder 5.22, and a discharging port of the spiral feeder 5.22 is connected with the coke collecting box 14. Adopt above-mentioned structure, can carry out the primary cooling with the coke, then get into and carry out the second grade cooling and carry to the second discharging pipe, this kind of setting can improve fast cooling time and shorten the cooling cycle, and transport efficiency is high moreover.

As shown in fig. 1-2 and 11-12, the first discharge pipe 5.1 of the present application comprises a vertical part 5.12 and an inclined part 5.13, wherein one end of the vertical part 5.12 is connected with the discharge port of the reaction kettle 1, and the other end of the vertical part 5.12 is connected with the inclined part 5.13; the discharge end of the inclined part 5.13 is connected with a second discharge pipe 5.2; by adopting the structure, the coke can be effectively guided to fall into the first discharge pipe quickly for primary cooling, and the cooling efficiency is improved.

As shown in fig. 12, the primary cooling pipe 5.11 of the present application includes a primary cooling inlet pipe 5.111 and a primary cooling outlet pipe 5.112, the primary cooling inlet pipe 5.111 is located on the inclined portion 5.13, the primary cooling outlet pipe 5.112 is located on the vertical portion 5.12, and the primary cooling inlet pipe is located downstream and the primary cooling outlet pipe is located upstream (i.e., the primary cooling inlet pipe is close to the lower portion, the primary cooling outlet pipe is close to the upper portion, and the cooling medium may be water and circulate from bottom to top); with the above structure, the coke enters the vertical portion and then rapidly falls into the inclined portion, and the downward sliding speed of the coke in the inclined portion is slowed down and is cooled relatively sufficiently.

As shown in fig. 12, the first discharging pipe 5.1 of the present application includes a first inner pipe 5.14 and a first outer pipe 5.15, the first outer pipe 5.15 is sleeved outside the first inner pipe 5.14, and a space for accommodating a cooling medium is formed between the first inner pipe 5.14 and the first outer pipe 5.15, the length of the first outer pipe 5.15 is smaller than the length of the first inner pipe 5.14 (both ends of the first inner pipe extend out of the first outer pipe), the primary cooling inlet pipe 5.111 and the primary cooling outlet pipe 5.112 are disposed on the first outer pipe 5.15 and are communicated with the space for accommodating the cooling medium; with this structure, the cooling medium can be circulated and driven into the space formed between the first inner tube 5.14 and the first outer tube 5.15, and the coke can be effectively cooled for the first time.

As shown in fig. 11 to 12, the second discharging pipe 5.2 of the present application includes a second inner pipe 5.23 and a second outer pipe 5.24, the second outer pipe 5.24 is sleeved outside the second inner pipe 5.23, and a space for accommodating a cooling medium is formed between the second inner pipe 5.23 and the second outer pipe 5.24, the length of the second outer pipe 5.24 is smaller than the length of the second inner pipe 5.23, the second cooling pipe 5.21 includes a secondary cooling inlet pipe 5.211 and a secondary cooling outlet pipe 5.212, and the secondary cooling inlet pipe 5.211 and the secondary cooling outlet pipe 5.212 are both disposed on the second outer pipe 5.24, the secondary cooling outlet pipe 5.212 is located upstream, and the secondary cooling inlet pipe 5.211 is located downstream (i.e., the secondary cooling outlet pipe 5.212 is located near the upper end, the secondary cooling inlet pipe is located near the lower end, and the cooling medium is water, and is circulated and cooled from bottom to top), and is communicated with the space for accommodating the cooling medium; adopt this structure, can carry out secondary cooling and transmission with the coke from first discharging pipe, realize the quick secondary cooling to the coke.

As shown in fig. 11-12, the screw feeder 5.22 of the present application includes a screw 5.221 and a driving motor 5.222, the screw 5.221 is disposed in the second inner tube 5.23, the driving motor 5.222 is disposed at the upper end of the second inner tube 5.23, an output shaft of the driving motor 5.222 is connected to the screw 5.221 and drives the screw 5.221 to rotate circumferentially, the screw 5.221 is provided with a spiral tooth 5.223, and the spiral tooth 5.223 is used for driving coke to be conveyed to a coke outlet. By adopting the structure, the coke is driven to discharge in a screw 5.221 and helical tooth 5.223 mode, so that the coke can be effectively contacted with a cooling medium, and the operation of cooling and releasing heat as soon as possible is realized; the outlet is arranged in the side wall of the second inner tube 5.23 near the upper end, and the outlet is opposite to the coke collecting tank.

As shown in fig. 11 to 12, the secondary cooling inlet pipe 5.21 according to the present application is located downstream of the second outlet pipe 5.2, and the secondary cooling outlet pipe 5.212 is located upstream of the second outlet pipe 5.2; the downstream end of the second discharge pipe 5.2 is connected to the first discharge pipe 5.1, and the upstream end of the second discharge pipe 5.2 is connected to the coke collection tank 14. By adopting the structure, the coke can be effectively transported in the second discharge pipe, and meanwhile, the rapid cooling can be realized.

The gas channel is communicated with a gas source through a pipeline, the pipeline can be arranged at a hidden position to prevent potential safety hazards caused by touch or top collision, and a valve can be arranged on the pipeline to control gas; in addition, as shown in the attached figure 1, the side wall of the heat preservation stove close to the lower end is provided with an opening, so that the condition of gas combustion and the ventilation between the gas and the outside can be observed conveniently.

As shown in the attached figure 13, the fire plate of the present application is provided with an annular gas channel on the bottom plate of the heat preservation stove, the annular gas channel is provided with a plurality of gas nozzles, the gas nozzles can be uniformly distributed on the annular gas channel, and the direction of the gas nozzles is inclined upwards to align to the reaction kettle; the biomass gas outlet pipe also corresponds to the fire plate of the heat-preservation stove, so that the reaction kettle can be doubly heated, the heating speed is high, and the energy utilization rate is high; the heat preservation stove of this application can adopt the brick structure to carry out the overlap joint, wherein with reation kettle cladding to and interval clearance between the reation kettle, make things convenient for thermal circulation, to the even heating of reation kettle.

The utility model provides a casing of variable volume compressor can set up the structure that is the integral type, the feeder hopper of higher authority is a whole with the outer shell portion at compression gyro wheel place, the outer shell portion at compression gyro wheel place all is the open-type at the inlet side with the outlet side, do not have the casing setting, make things convenient for the feeding and the ejection of compact of straw, then removable baffle then constitutes the component part that seals the material mouth at the place side of outlet side and casing jointly, can make things convenient for the straw to connect the maintenance of material mouth and compression gyro wheel, also convenient equipment.

The application of the above structure: the straw is conveyed to a variable-volume compressor through a conveying belt, the variable-volume compressor compresses the straw and conveys the straw to the inlet of the carbonization furnace, the straw is scattered at the inlet of the carbonization furnace to a certain degree, the scattered straw falls on a material separate tray, and the material separate tray enables the straw to uniformly fall on the bottom of the carbonization furnace in an annular manner by changing the falling path of the material; the material separate placing disc is arranged at the lower part of the furnace cover of the carbonization furnace and is 30cm away from the inner wall of the furnace cover, and the variable-volume compressor is arranged at the upper part of the material inlet of the carbonization furnace and is connected with the material inlet of the carbonization furnace in an attaching manner; after the carbonization furnace is filled with the straws, the feeding conveyer belt and the variable-volume compressor stop working, and the material inlet of the carbonization furnace is closed; igniting natural gas to heat the carbonization furnace, wherein a gap of 30cm is formed between the outer wall of the carbonization furnace and the stove, and burning hot gas can spread between the carbonization furnace and the stove, so that straws in the stove can be rapidly heated; in the straw carbonization process, the straws are gradually dried and carbonized and cracked along with the change of time and temperature, and in the cracking process, steam and wood gas flow to a gas-liquid separation device through a wood gas pipeline until the carbonization and cracking process is finished; the straws are changed into biomass charcoal after carbonization and pyrolysis, a telescopic charcoal discharge door is started, the biomass charcoal enters a biomass charcoal cooling and discharging device by means of self weight, and the cooled biomass charcoal is conveyed to a coke collecting box through a spiral feeder; the carbonization cooling device is heated by two sections of water circulations, cooling water enters through a cooling water inlet and is discharged through a cooling water outlet, so that the biomass charcoal is quickly and automatically discharged; the gas that the pyrolysis of straw produced among the carbonization process enters into gas-liquid separation through wooden gas honeycomb duct, wooden gas inlet tube stretches into the well lower part of gas-liquid separation jar, the gas-liquid separation jar is two-layer inside and outside, the bottom UNICOM, the gas-liquid separation jar is equipped with liquid water, when wooden gas is leading-in to the gas-liquid separation jar, the wood tar in wooden gas, pyrolkigneous liquid dissolve in the liquid, surplus biomass combustible gas gathers on the upper portion of bucket in the retort, through the gas honeycomb duct, carry the carbomorphism stove fire plate, realize biomass gas back combustion heating retort. (the water in the outer cylinder (water storage tank) of the reaction tank is used for balancing the pressure generated by the biomass gas). When the wood liquid reaches a certain height, the wood liquid can flow into the wood vinegar purifying device through the wood liquid eduction tube; after flowing into the pyroligneous liquor purification device, the wood vinegar is electrically heated in a pyroligneous liquor purification reaction kettle, the pyroligneous liquor is gasified after reaching a certain temperature, the gasified pyroligneous liquor is cooled at the top end of the reaction kettle, and the cooled pyroligneous liquor is collected by a pyroligneous liquor reflux tank and flows into a pyroligneous liquor collection box through a pipeline; the main component of the purified wood liquid is wood tar, and the wood liquid flows into a wood tar collecting box through a wood tar discharge valve.

Claims (15)

1. The straw carbonization device is characterized in that: the device comprises a reaction kettle, a feeding device, a variable-volume compressor, a material separating disc, a cooling device and a gas-liquid separation device; a heat preservation stove is arranged on the periphery of the reaction kettle, a gap is formed between the heat preservation stove and the side wall of the reaction kettle, and a fire plate is arranged in the heat preservation stove and below the reaction kettle; the variable-volume compressor is positioned at the upper end of the reaction kettle and is communicated with the reaction kettle, a material receiving port is arranged on the variable-volume compressor, the material receiving port is connected with one end of the feeding device, and the other end of the feeding device is connected with the straw material; the material separating disc is positioned below the variable-volume compressor and is positioned at the position of the reaction kettle close to the end cover; the cooling device is positioned at the lower part of the reaction kettle and is provided with two sections of cooling structures; the gas-liquid separation device is connected with the reaction kettle through a wood gas leading-in pipe, and a biomass gas leading-out pipe is arranged on the gas-liquid separation device and communicated with the heat preservation stove.

2. The straw carbonization device as defined in claim 1, wherein: the variable-volume compressor comprises a shell, wherein a material receiving port is formed in the upper end of the shell, the material receiving port is connected with one end of the feeding device in a supporting mode, a compression roller is arranged in the middle of the shell, and the compression roller is transversely arranged in the shell; the discharge side of the compression roller is communicated with the feed inlet of the reaction kettle.

3. The straw carbonization device as defined in claim 2, wherein: one side of the lower outlet of the compression roller is provided with a detachable baffle plate, and the detachable baffle plate is used for sealing the shell and the feed inlet of the reaction kettle; the compression roller comprises a spring tooth shaft and spring teeth arranged on the spring tooth shaft, wherein four rows of spring teeth are arranged on the spring teeth and radially extend and distribute along the spring tooth shaft.

4. The straw carbonization device as defined in claim 3, wherein: the elastic tooth shaft is provided with an elastic tooth sleeve, the elastic tooth is sleeved in the elastic tooth sleeve, an expansion spring is further arranged in the elastic tooth sleeve, and the elastic tooth is sleeved in the expansion spring.

5. The straw carbonization device as defined in claim 1, wherein: the material separating plate comprises a side plate connected with the top cover of the reaction kettle, the side plate is circular, is circumferentially arranged below the top cover of the reaction kettle, and has an inner diameter larger than the diameter of the feed inlet; the distance between the drainage plate and the inner wall of the furnace cover is 30 cm.

6. The straw carbonization device as defined in claim 1, wherein: the gas-liquid separation device comprises a gas-liquid separation inner tank and a gas-liquid separation outer tank, the bottoms of the gas-liquid separation inner tank and the gas-liquid separation outer tank are communicated with each other, the gas-liquid separation inner tank is connected with a biomass gas leading-out pipe and a wood gas leading-in pipe, and the gas-liquid separation outer tank is connected with a wood liquid leading-out pipe.

7. The straw carbonization device as defined in claim 6, wherein: the side wall of the gas-liquid separation inner tank close to the bottom is provided with a communicating hole, the communicating hole is communicated with the gas-liquid separation outer tank, liquid water is arranged in the gas-liquid separation outer tank, and the height of the liquid water is higher than that of the communicating hole; the wood gas leading-in pipe extends from the top of the gas-liquid separation inner tank to the inside and is contacted with the liquid water, and the height of the wood gas leading-in pipe in the gas-liquid separation inner tank is higher than that of the communicating hole; the height of the gas-liquid separation inner tank is higher than that of the gas-liquid separation outer tank.

8. The straw carbonization device as defined in claim 7, wherein: the gas-liquid separation outer tank is connected with a wood liquid delivery pipe, the discharge end of the wood liquid delivery pipe is connected with the pyroligneous purification device, and the discharge end of the wood liquid delivery pipe is positioned at the upper part of the pyroligneous purification device; the upper part of the pyroligneous acid purifying device is connected with a pyroligneous acid guide pipe which is communicated with a pyroligneous acid collecting box, and the lower part of the pyroligneous acid purifying device is connected with a wood tar discharging valve which is communicated with the wood tar collecting box.

9. The straw carbonization device as defined in claim 8, wherein: the pyroligneous liquor guide pipe is composed of a first guide section and a second guide section, one end of the first guide section is connected with a cooling cover of the pyroligneous liquor purification device, the other end of the first guide section is connected with the second guide section, the connecting end of the first guide section and the cooling cover is higher than the connecting end of the second guide section, a pyroligneous liquor guide groove is arranged in the cooling cover, the outlet of the pyroligneous liquor guide groove is connected with the first guide section, and the outlet end of the pyroligneous liquor guide groove is lower than the inlet end of the pyroligneous liquor guide groove; the tail end of the second diversion section is connected with the pyroligneous liquid collecting box; the pyroligneous liquor purification device is characterized in that a heat insulation layer is arranged on the pyroligneous liquor purification device, the heat insulation layer is positioned on the outer side wall of the pyroligneous liquor purification device, a heating space is formed between the heat insulation layer and the outer side wall of the pyroligneous liquor purification device, and a heating resistor is arranged in the heating space.

10. The straw carbonization device as defined in claim 1, wherein: the cooling device comprises a first discharge pipe and a second discharge pipe; one end of the first discharging pipe is connected with a discharging port of the reaction kettle, the other end of the first discharging pipe is connected with the second discharging pipe, a primary cooling pipeline is arranged on the first discharging pipe, and a hollow pipe is arranged in the first discharging pipe; the second discharging pipe on be provided with second grade cooling tube, the inside of second discharging pipe is provided with the discharge gate and the spiral feeder of spiral feeder, first discharging pipe and accepts mutually, spiral feeder's discharge gate and coke collection box accept mutually.

11. The straw carbonization device as defined in claim 10, wherein: the first discharge pipe comprises a vertical part and an inclined part, one end of the vertical part is connected with a discharge hole of the reaction kettle, and the other end of the vertical part is connected with the inclined part; the discharge end of the inclined part is connected with the second discharge pipe.

12. The straw carbonization device as defined in claim 10, wherein: the one-level cooling pipe include that the one-level cooling advances pipe and one-level cooling exit tube, the one-level cooling advance the pipe and be located the rake, the one-level cooling exit tube be located vertical portion, and the one-level cooling advances the pipe and is located low reaches, one-level cooling exit tube and is located the upper reaches.

13. The straw carbonization device as defined in claim 12, wherein: the first discharging pipe comprises a first inner pipe and a first outer pipe, the first outer pipe is sleeved outside the first inner pipe, a space for containing a cooling medium is formed between the first inner pipe and the first outer pipe, the length of the first outer pipe is smaller than that of the first inner pipe, and the primary cooling inlet pipe and the primary cooling outlet pipe are arranged on the first outer pipe and communicated with the space for containing the cooling medium.

14. The straw carbonization device as defined in claim 10, wherein: the second discharge pipe comprises a second inner pipe and a second outer pipe, the second outer pipe is sleeved outside the second inner pipe, a space for containing a cooling medium is formed between the second inner pipe and the second outer pipe, the length of the second outer pipe is smaller than that of the second inner pipe, the secondary cooling pipeline comprises a secondary cooling inlet pipe and a secondary cooling outlet pipe, and the secondary cooling inlet pipe and the secondary cooling outlet pipe are both arranged on the second outer pipe and are communicated with the space for containing the cooling medium; the secondary cooling inlet pipe is positioned at the downstream of the second discharge pipe, and the secondary cooling outlet pipe is positioned at the upstream of the second discharge pipe; the downstream end of the second discharging pipe is connected with the first discharging pipe, and the upstream end of the second discharging pipe is connected with the coke collecting tank.

15. The straw carbonization device as defined in claim 10, wherein: the spiral feeder comprises a screw and a driving motor, the screw is arranged in the second inner tube, the driving motor is arranged at the upper end of the second inner tube, an output shaft of the driving motor is connected with the screw and drives the screw to rotate in the circumferential direction, spiral teeth are arranged on the screw and are used for driving coke to be conveyed to a coke outlet.

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