CN111548809A

CN111548809A - Movable straw carbonization cracking device

Info

Publication number: CN111548809A
Application number: CN202010558396.7A
Authority: CN
Inventors: 董德龙; 胡云鹏; 乔阳
Original assignee: University of Jinan
Current assignee: University of Jinan
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-08-18

Abstract

The invention discloses a movable straw carbonization and cracking device which comprises a crushing and crushing system, a drying system and a carbonization and pyrolysis system. The former subsystem provides raw materials for the latter subsystem among the systems. After materials collected from a field enter the crushing chamber, the rotary cutter head and the fixed cutter arranged on the rack crush straws through shearing force and then carry out rotary crushing by the hammer. The crushed straw powder is sent into a hopper of a drying system through a pipeline. The straw powder particles enter from the head of the dryer through the feeding hopper and the feeding screw conveyor, move backwards, are discharged from the tail, and enter the hopper of the pyrolysis carbonization furnace through the pipeline. Through the material loading operation, the raw materials are pyrolyzed and carbonized, carbonized particles enter a carbon collecting box, and pyrolysis gas is stored in the form of bio-oil after being condensed. The device provided by the invention has a simple and compact structure, is easy to move, and can directly carbonize and crack straws in fields to prepare biochar and bio-oil with higher volume density.

Description

Movable straw carbonization cracking device

Technical Field

The invention relates to the technical field of straw carbonization and cracking, in particular to a movable straw carbonization and cracking device.

Background

China is a big agricultural country, and organic wastes such as straws, rice straws and the like generated every year have the potential of being converted into energy sources which is about 5 hundred million tons of standard coal. The potential in the future can reach 7-10 million tons of standard coal, which is about 15% -20% of the current energy consumption, and the development of agricultural and forestry waste utilization has good social benefits, environmental benefits and economic benefits. However, the crop straw utilization rate is not high due to the problems of overhigh cost of agricultural machinery and equipment, too short industrial chain, lack of technical support, people's cognition error and the like in the process of collecting, transporting and utilizing the straw, and the crop straw is abandoned and incinerated in a large number of areas. The air environment is polluted by burning the crop straws, and the human health is harmed; traffic accidents are easily caused, and the safety of roads is influenced; the soil structure is damaged, and the quality of cultivated land is reduced; raising the surface temperature of the soil causes death of beneficial microorganisms in the soil, and affects the yield and quality of field crops and agricultural benefits.

The fundamental method for solving the problem of straw burning is to develop a biomass deep processing technology, realize the potential value of agricultural and forestry wastes and drive the efficient utilization of biomass resources by economic benefits. The preparation of biochar coke (biochar) and biomass pyrolysis oil (bio-oil) by carbonizing and cracking straws is one of the currently feasible treatment methods. The biochar has a hierarchical pore structure and rich oxygen-containing functional groups, and can adsorb and ion exchange nutrient elements in the fertilizer, delay the release of nutrient components and increase the organic matter content of soil. The bio-oil has thermal instability, and can form coating layers with controllable structures on the inner surface and the outer surface of the basic fertilizer by utilizing the characteristic of easy polymerization of the bio-oil, thereby realizing the controllable release of nutrient elements.

However, biomass such as crop straws has the problems of light weight, large volume, wide distribution, difficulty in collection and the like, which causes higher utilization difficulty and utilization cost of the straws. The labor intensity of straw collection is large, and manual collection results in lower collection efficiency and higher labor cost. The collection, transportation and storage of the straw have not yet formed a stable industrial chain, which further increases the collection cost of the straw. The key point for solving the problem of straw collection is to compress the transportation cost of the straw as much as possible, which needs to change the current centralized processing mode of the straw, carry out distributed and on-site processing on the straw and avoid long-distance transportation of the straw.

Disclosure of Invention

The invention aims to provide a mobile straw carbonization cracking device, which carries out vehicle-mounted carbonization cracking equipment, directly carbonizes and cracks straws in the field, and prepares biochar and bio-oil with higher volume density.

Portable straw carbonization cracker, including broken reducing mechanism, drying device, pyrolysis carbonization device, workstation and controller, broken reducing mechanism, drying device, pyrolysis carbonization device all install on the workstation, broken reducing mechanism does drying device carries the straw granule, drying device does pyrolysis carbonization device carries dry straw granule, broken reducing mechanism, drying device, pyrolysis carbonization device respectively with the controller is connected.

Further, the crushing and pulverizing apparatus includes: the device comprises a feeding mechanism, a spiral adjusting and clamping mechanism, a crushing unit and a first induced draft fan. The driving wheel of the feeding mechanism is connected with the driving device, and the driven wheel is driven to move through chain transmission to finish the conveying of the straws. The screw adjusting and clamping mechanism is located at the feed inlet, the control of the feeding amount is completed by adjusting the screw nut, and the crushing unit comprises a fixed cutter, a roller cutting disc, a first-stage rotor, a second-stage rotor, a first-stage baffle, a second-stage baffle, a third-stage baffle and a hammer type crusher. The stationary knife is installed on the stationary knife seat, and the fly cutter is installed on the cylinder, and all is bolted connection, the one-level rotor, the second grade rotor are located different planes, and the one-level rotor is located the oblique top of second grade rotor, one-level baffle, second grade fender, tertiary baffle all pass through the bolt fastening and smash indoor portion, are close to rotor one side and all have the saw blade tooth, and first draught fan is connected with ejection of compact pipeline, brings kibbling material into ejection of compact pipeline.

Further, the drying device includes: the device comprises a spiral feeder, a left rolling ring, a right rolling ring, a gear ring, a drying cylinder, an air heater, a left riding wheel, a right riding wheel, a left riding wheel carrier, a right riding wheel carrier, a base, a drying cylinder driving motor, a gear and a second induced draft fan. A drying cylinder is arranged above the base, a bracket is arranged on the left side of the drying cylinder, a linear slide rail is arranged above the bracket, a slide block is arranged on the linear slide rail, a slide block driving cylinder for driving the slide block is arranged on the slide block, a spiral feeder is arranged on the slide block, a pipeline and a discharge pipeline of an air heater are inserted into the drying cylinder, rolling bearings are arranged on the outer walls of the air heater pipeline and the discharge pipeline, bearing seats are arranged at the centers of the left end and the right end of the drying cylinder, a material copying plate is arranged on the inner wall of the drying cylinder, a left rolling ring is arranged on the left side of the outer wall of the drying cylinder, a right rolling ring is arranged on the right side of the outer wall of the drying cylinder, a gear ring is arranged at the center of the outer wall of the drying cylinder, a motor for driving the drying cylinder is arranged on, and the front end and the rear end of the supporting wheel frame are provided with right tugs which are matched with the right rolling ring.

Furthermore, a slot is formed in the left end of the drying cylinder, when materials are conveyed to the drying cylinder, the inserting plate is pulled out of the slot, and when the drying cylinder rotates, the inserting plate is inserted into the slot, so that the materials are prevented from leaking out of the drying cylinder in the rotating process.

Further, the high-temperature pyrolysis carbonization apparatus includes: the device comprises a feeding unit, a sectional pyrolysis carbonization unit, a biochar cooling unit and a pyrolysis gas separation unit.

Further, the feed unit comprises: sealed storehouse, gate valve, airlock and broken device that encircles. The sealing bin is arranged above the sectional heating furnace and is connected with a feeding hole of the sectional heating furnace. The air seal machine is arranged in the sealed bin, the gate valve is arranged in the pyrolysis gas separation unit, and the gate valve and the air seal machine are matched for use to realize sealed continuous feeding. The arch breaking device mainly adopts a four-bar mechanism principle, and uses a motor as a driving force to ensure that a deflector rod is stirred in a reciprocating manner in a hopper, so that the normal conveying of materials is ensured.

Further, the staged pyrolytic carbonization unit comprises: the device comprises a sectional heating furnace, a pyrolysis main screw, a variable frequency motor, a carbon outlet, an air outlet and a filter screen. The inner side of the sectional heating furnace is a pyrolysis chamber, the outer side of the sectional heating furnace is a combustion chamber, and the sectional heating furnace is 4 furnace bodies controlled by single PID. The pyrolysis main screw is positioned in the sectional heating furnace, materials are conveyed to the right end of the sectional heating furnace to move, and the variable frequency motor is connected with the left end of the pyrolysis main screw and provides power for the pyrolysis main screw. The charcoal outlet is arranged at the bottom of the right end of the sectional heating furnace and is connected with the biochar cooling unit. And the gas outlet is arranged at the top of the right end of the sectional heating furnace and is connected with the pyrolysis gas separation unit. The filter screen is arranged at the air outlet of the sectional heating furnace for filtering and dedusting.

Further, the biochar cooling unit comprises: a charcoal outlet inclined screw, a circulating water sleeve, a charcoal collecting box, an inclined screw driving motor, a variable frequency water pump and a water tank. Go out the charcoal oblique spiral left end and be connected with the play charcoal mouth of segmentation heating furnace, go out the charcoal oblique spiral right-hand member and be connected with oblique spiral driving motor, through oblique spiral driving motor control oblique spiral rotational speed to match the feeding volume of front end, the circulating water sleeve pipe is installed at screw conveyer's cavity, and circulating water sheathed tube delivery port and water inlet are connected in the water inlet and the delivery port of water tank respectively.

Further, the pygas separation unit comprises: the system comprises a tubular heat exchanger, a water cooler, a double-pipe condenser and a three-phase separator. The water cooler can provide cold water with a water outlet of 10 ℃ for heat exchange of the shell and tube heat exchanger and the casing condenser, the water outlet of the water cooler is respectively connected with the water inlet of the shell and tube heat exchanger and the water inlet of the casing condenser, and the water inlet of the water cooler is respectively connected with the water outlet of the shell and tube heat exchanger and the water outlet of the casing condenser. The gas outlet of the tubular heat exchanger is connected with the gas outlet of the segmented pyrolysis carbonization unit, the gas outlet of the tubular heat exchanger is connected with the gas inlet of the oil-gas separator, the discharge port of the oil-gas separator is connected with the feed inlet of the oil storage tank, and the oil storage tank is used for storing pyrolysis tar. The casing condenser air inlet is connected with oil and gas separator gas outlet, the casing condenser gas outlet is connected with the three-phase separator air inlet, the casing condenser discharge gate is connected with the feed inlet of light oil collection tank and water storage tank, the light oil collection tank is used for storing light oil, the water storage tank is used for storing pyroligneous.

The invention has the beneficial effects that: the movable straw carbonization cracking device can be used for continuous production, uninterrupted operation in the straw carbonization process is realized through continuous feeding, pyrolysis, carbon discharging, oil-gas separation and the like, the equipment productivity is improved to the maximum extent, meanwhile, pyrolysis and carbonization treatment can be carried out on the straws on the spot, and the transportation cost is effectively reduced.

Drawings

FIG. 1 is a schematic structural diagram of a mobile straw carbonization and cracking device of the invention.

Fig. 2 is a schematic structural view of the spiral feeding device.

FIG. 3 is a schematic structural view of a carbonization/cracking furnace and a biochar cooling device.

In the figure: 1 supporting frame, 2 feeding mechanisms, 3 spiral adjusting and clamping mechanisms, 4 crushing units, 401 fixed cutters, 402 roller cutterheads, 403 primary rotors, 404 secondary rotors, 405 hammer piece crushers, 5 first induced draft fans, 6 spiral feeders, 601 brackets, 602 linear slide rails, 603 slide blocks, 604 slide block driving cylinders, 605 spiral driving motors, 606 hoppers, 607 conveying spirals, 7 left and right rolling rings, 8 gear rings, 9 drying cylinders, 10 hot air blowers, 11 left and right riding wheels, 12 left and right riding wheel frames, 13 bases, 14 drying cylinder driving motors, 15 gears, 16 second induced draft fans, 17 sealing bins, 18 air dampers, 19 segmented heating furnaces, 20 pyrolysis main spirals, 21 filter screens, 22 air outlets, 23 variable frequency motors, 24 carbon outlets, 25 carbon outlet inclined spirals, 26 circulating water casings, 27 inclined spiral driving motors, 28 carbon collecting boxes, 29 controllers, 30 gate valves and 31 tubular heat exchangers, 32 gas-oil separator, 33 casing condenser, 34 three-phase separator, 35 oil storage tank, 36 light oil collection tank, 37 water storage tank and 38 gas flowmeter.

Detailed Description

Example 1

As shown in fig. 1, the mobile straw carbonization cracking device comprises a crushing and smashing device, a drying device, a high-temperature pyrolysis and carbonization device, a workbench and a controller, wherein the crushing and smashing device, the drying device and the high-temperature pyrolysis and carbonization device are all installed on the workbench, the crushing and smashing device is used for conveying straw particles for the drying device, the drying device is used for conveying dry straw particles for the high-temperature pyrolysis and carbonization device, and the crushing and smashing device, the drying device and the high-temperature pyrolysis and carbonization device are respectively connected with the controller.

The crushing and crushing device comprises a support frame 1, a feeding mechanism 2, a spiral adjusting and clamping mechanism 3, a crushing unit 4 and a first induced draft fan 5. The feeding mechanism 2 is arranged on the supporting frame 1, and the spiral adjusting and clamping mechanism 3 and the crushing unit 4 are both arranged in the crushing chamber.

Feeding mechanism 2 includes first driving motor, the gear, the conveyer belt, first driving motor installs at 1 top of support frame, first driving motor passes through the pivot connection with first gear, drive gear through first driving motor and rotate, the top at support frame 1 is installed through the second gear mounting bracket to the second gear, first gear passes through the chain with the second gear and is connected, the action wheel coaxial coupling of first gear and conveyer belt, the second gear is with the follow driving wheel coaxial coupling of conveyer belt, make the action wheel of material conveyer belt and follow driving wheel rotate simultaneously, with this transmission of accomplishing power, realize the transmission of straw. The screw adjusting and clamping mechanism 3 is arranged at the inlet of the crushing chamber, and the feeding amount can be controlled by adjusting the screw adjusting and clamping mechanism 3.

The crushing unit 4 comprises a fixed cutter 401, a roller cutter disc 402, a primary rotor 403, a secondary rotor 404 and a hammer crusher 405, the fixed cutter 401 is mounted on the fixed cutter disc in a bolt connection mode, a second driving motor drives the roller cutter disc 402 to rotate through belt transmission, so that flying cutters mounted on the roller cutter disc are driven to perform circumferential cutting around a shaft of the roller cutter disc, the flying cutters are matched with the fixed cutters, and the straw is cut off. The cut straw is under the action of gravity and enters the first-stage rotor 403 along the blanking plate, the third driving motor drives the first-stage rotor 403 to rotate clockwise through belt transmission, the material can continuously fall onto the first-stage rotor 403 under the action of gravity after touching the first baffle, and the material is beaten, rubbed and crushed mutually. After reciprocating crushing, the straw falls on clockwise rotation's second grade rotor 404, high-speed rotatory second grade rotor 404 can force the straw to strike second baffle, the third baffle, then fall into hammer mill 405 department, the fourth drive motor drives hammer mill 405 high-speed rotatory through the belt drive, the hammer is further smashed the straw, the straw after smashing receives the action of gravity and falls into the bottom of smashing the room, first draught fan 5 takes the straw after smashing out of smashing the room.

Example 2

The drying device of the embodiment comprises a spiral feeder 6, a left rolling ring 7, a right rolling ring 7, a gear ring 8, a drying cylinder 9, an air heater 10, a left riding wheel 11, a right riding wheel 11, a left riding wheel frame 12, a right riding wheel frame 12, a base 13, a drying cylinder driving motor 14, a gear 15 and a second induced draft fan 16.

As shown in fig. 2, the screw feeder 6 includes a bracket 601, a linear slide rail 602, a slide block 603, a slide block driving cylinder 604, a screw driving motor 605, a hopper 606, and a feed screw 607. The linear slide rail 602 is fixed on the upper end face of the bracket 601, the slide block 603 is installed on the linear slide rail 602, the material conveying screw 607 and the screw driving motor 605 are installed on the slide block 603, and the right end of the screw driving motor 605 is connected with the left end of the material conveying screw 607. After the crushed straws fall into the hopper 606 under the action of gravity, the sliding block drives the cylinder 604 to drive the sliding block 603 to move rightwards along the linear sliding rail 602 until the right end of the material conveying screw 607 enters the left end face of the drying cylinder, the screw driving motor 605 drives the material conveying screw 607 to rotate, and after the feeding is completed, the sliding block 603 moves leftwards along the linear sliding rail 602 and returns to the initial position.

The drying cylinder 9 is a metal piece with a cylindrical structure, the drying cylinder 9 is installed above the base 13, a plurality of material shoveling plates which are uniformly arranged are fixed on the inner wall of the drying cylinder 9, and the material shoveling plates are used for continuously shoveling and throwing the material down so that the material is fully contacted with hot air, heat exchange is promoted, and the material moves from front to back. A gear ring 8 is installed in the center of the outer wall of the drying drum 9, a drying drum driving motor 14 is installed above the base, a gear 15 is fixed at the output end of the drying drum driving motor 14, and the gear 15 is meshed with the gear ring 8. The left side of the outer wall of the drying cylinder 9 is provided with a left rolling ring 7, the right side of the outer wall of the drying cylinder 9 is provided with a right rolling ring 7, the right end of a driving motor 14 of the drying cylinder is provided with a right supporting wheel frame 12, the front end and the rear end of the supporting wheel frame 12 are provided with a right dragging wheel 11, and the right dragging wheel 11 is matched with the right rolling ring 7. The hot air blower 10 is connected with the drying cylinder 9 through a pipeline, rolling bearings are arranged on the outer walls of the hot air blower pipeline and the discharge pipeline, and bearing seats are arranged at the centers of the left end and the right end of the drying cylinder 9. In the barrel, the material fully contacts with hot-blast the mixture, carries out damp heat exchange: the high-temperature air transfers heat to the wet materials, so that the temperature of the wet materials is increased, the wet materials are heated to be heated, and contained moisture is evaporated and discharged into the hot air, thereby realizing the drying of the wet materials. After drying, the second induced draft fan 16 takes the dried material out of the drying cylinder 9.

In order to block materials in the drying cylinder 9 and prevent the materials from leaking out in the rotating process of the drying cylinder, a slot is formed in the left end of the drying cylinder 9, when the materials are conveyed to the drying cylinder 9, a plug board is pulled out of the slot, and when the drying cylinder 9 rotates, the plug board is inserted into the slot.

EXAMPLE III

The high-temperature pyrolysis carbonization device comprises a feeding unit, a sectional pyrolysis carbonization unit, a biochar cooling unit and a pyrolysis gas separation unit.

The feeding unit of the embodiment comprises a sealed cabin 17, an air seal machine 18, a gate valve 30 and an arch breaking device. The sealed continuous feeding is realized through the matching use of the sealed bin 17, the air seal machine 18 and the gate valve 30, the gate valve 30 is closed at first, the end cover of the sealed bin 17 is opened, the feeding is carried out, the end cover of the sealed bin 17 is closed after the feeding is finished, the air seal machine 18 and the gate valve 30 are opened, and the sealed feeding operation is carried out in a reciprocating mode in sequence. The arch breaking device mainly adopts a four-bar mechanism principle, and uses a motor as a driving force to ensure that a deflector rod is stirred in a reciprocating manner in a hopper, so that the normal conveying of materials is ensured.

As shown in fig. 3, the sectional pyrolysis carbonization unit of the present embodiment includes a sectional heating furnace 19, a main pyrolysis spiral 20, a filter screen 21, an air outlet 22, a variable frequency motor 23, and a char outlet 24. The inner side of the sectional heating furnace 19 is a pyrolysis chamber, the outer side is a combustion chamber, the sectional heating furnace 19 is 4 furnace bodies controlled by monomer PID, the temperature of a single-section furnace can be adjusted, and the highest temperature can reach 800 ℃. The pyrolysis main screw 20 is positioned in the segmented heating furnace 19, so that materials are fully heated in the materials and conveyed to the right end of the segmented heating furnace, the variable frequency motor 23 provides power for the materials, and the frequency of the variable frequency motor 23 can be adjusted to control the rotating speed of the main screw so as to adjust the heating time of the materials. The top of the right end of the sectional heating furnace 19 is provided with an air outlet 22, pyrolysis gas generated after heating materials enters a pyrolysis gas separation unit from the air outlet 22, a filter screen 21 is arranged inside the air outlet 22, the filter screen 21 is mainly used for solid-gas separation, solid impurities such as dust and carbon powder carried by the high-temperature pyrolysis gas after pyrolysis are prevented from entering a pipeline, the pyrolysis gas is filtered, a carbon outlet 24 is arranged at the bottom of the right end of the sectional heating furnace, and biochar generated after heating the materials enters a biochar cooling unit from the position.

The biochar cooling unit comprises a charcoal outlet inclined spiral 25, a circulating water sleeve 26, an inclined spiral driving motor 27, a charcoal collecting box 28, a variable frequency water pump and a water tank. The left end of the charcoal outlet inclined spiral 25 is connected with the charcoal outlet 24 of the sectional heating furnace 19, the right end of the charcoal outlet inclined spiral 25 is connected with the inclined spiral driving motor 27, and the rotating speed of the charcoal outlet inclined spiral 25 is controlled through the inclined spiral driving motor 27 so as to match the feeding amount of the front end. The material after high temperature carbonization reaches about 600 ℃, the temperature of the high temperature biochar is reduced by adopting a sleeve condensation mode, a circulating water sleeve 26 is arranged in a cavity of the screw conveyor, and a water outlet and a water inlet are respectively connected with a water inlet and a water outlet of a water tank. The water pump motor is also regulated by a frequency converter to change the water flow so as to adapt to the cooling of the biochar with different yields, so that the carbon outlet temperature is reduced to be below 100 ℃, and the biochar is prevented from being over-high in temperature and spontaneous combustion.

The pyrolysis gas separation unit comprises a tubular heat exchanger 31, an oil-gas separator 32, a casing condenser 33, a three-phase separator 34 and a water chiller. The water cooler can provide cold water with a water outlet of 10 ℃ through a compressor and a circulating pump of the water cooler, is used for exchanging heat between the tubular heat exchanger 31 and the double-pipe condenser 33, and reflows warm water after heat exchange to the water tank for condensation. The water outlet of the water cooler is respectively connected with the water inlet of the tubular heat exchanger 31 and the water inlet of the casing condenser 33, and the water inlet of the water cooler is respectively connected with the water outlet of the tubular heat exchanger 31 and the water outlet of the casing condenser 33.

An air inlet of the tubular heat exchanger 31 is connected with an air outlet of the segmented pyrolysis carbonization unit, an air outlet of the tubular heat exchanger 31 is connected with an air inlet of the oil-gas separator 32, and a discharge port of the oil-gas separator 32 is connected with a feed inlet of the oil storage tank 35. The tubular heat exchanger 31 reduces the temperature of the pyrolysis gas to about 200 ℃ through cold water heat exchange, and the pyrolysis tar is separated in the oil-gas separator and collected to the oil storage tank 35.

The air inlet of the casing condenser 33 is connected with the air outlet of the oil-gas separator 32, the air outlet of the casing condenser 33 is connected with the air inlet of the three-phase separator 34, the discharge port of the three-phase separator 34 is connected with the feed inlets of the light oil collection tank 36 and the water storage tank 37, and the casing condenser 33 reduces the temperature of the pyrolysis gas to normal temperature, so that the light oil, the pyroligneous liquid, the pyrolysis gas and the like in the pyrolysis gas are separated in the three-phase separator 34 and collected to the light oil collection tank 36 and the water storage tank 37. The separated non-condensable gases such as CO, CO2, H2, CH4 are passed through a gas flow meter 38 to a combustor 39 for combustion and evacuation.

Claims

1. Portable straw carbonization cracker, its characterized in that: including broken reducing mechanism, drying device, pyrolysis carbonization device, workstation and controller, broken reducing mechanism, drying device, pyrolysis carbonization device all install on the workstation, broken reducing mechanism does drying device carries the straw granule, drying device does pyrolysis carbonization device carries dry straw granule, broken reducing mechanism, drying device, pyrolysis carbonization device respectively with the controller is connected.

2. The mobile straw carbonization and cracking device as claimed in claim 1, wherein the crushing and crushing device comprises: the device comprises a feeding mechanism, a spiral adjusting and clamping mechanism, a crushing unit and a first induced draft fan; the straw crushing unit comprises a fixed cutter, a roller cutting disc, a primary rotor, a secondary rotor, a primary baffle, a secondary baffle, a tertiary baffle and a hammer crusher, wherein the driving wheel of the feeding mechanism is connected with a driving device, and drives a driven wheel to move through chain transmission to complete the conveying of straws; the stationary knife is installed on the stationary knife seat, and the fly cutter is installed on the cylinder, and all is bolted connection, the one-level rotor, the second grade rotor are located different planes, and the one-level rotor is located the oblique top of second grade rotor, one-level baffle, second grade fender, tertiary baffle all pass through the bolt fastening and smash indoor portion, are close to rotor one side and all have the saw blade tooth, first draught fan is connected with ejection of compact pipeline, brings kibbling material into ejection of compact pipeline.

3. The mobile straw carbonization and cracking device as claimed in claim 1, wherein the drying device comprises: the device comprises a spiral feeder, a left rolling ring, a right rolling ring, a gear ring, a drying cylinder, an air heater, a left riding wheel, a right riding wheel, a left riding wheel frame, a right riding wheel frame, a base, a drying cylinder driving motor, a gear and a second induced draft fan; a drying cylinder is arranged above the base, a bracket is arranged on the left side of the drying cylinder, a linear slide rail is arranged above the bracket, a slide block is arranged on the linear slide rail, a slide block driving cylinder for driving the slide block is arranged on the slide block, a spiral feeder is arranged on the slide block, a pipeline and a discharge pipeline of an air heater are inserted into the drying cylinder, rolling bearings are arranged on the outer walls of the air heater pipeline and the discharge pipeline, bearing seats are arranged at the centers of the left end and the right end of the drying cylinder, a material copying plate is arranged on the inner wall of the drying cylinder, a left rolling ring is arranged on the left side of the outer wall of the drying cylinder, a right rolling ring is arranged on the right side of the outer wall of the drying cylinder, a gear ring is arranged at the center of the outer wall of the drying cylinder, a motor for driving the drying cylinder is arranged on, and the front end and the rear end of the supporting wheel frame are provided with right tugs which are matched with the right rolling ring.

4. The mobile straw carbonization and cracking device as claimed in claim 1, wherein the high temperature pyrolysis and carbonization device comprises: the device comprises a feeding unit, a sectional pyrolysis carbonization unit, a biochar cooling unit and a pyrolysis gas separation unit.

5. The mobile straw carbonization and cracking device as claimed in claim 4, wherein the feeding unit comprises: the device comprises a sealed bin, a gate valve, an air seal machine and an arch breaking device; the sealing bin is arranged above the sectional heating furnace and connected with a feeding hole of the sectional heating furnace, the air seal machine is arranged inside the sealing bin, the gate valve is arranged on the pyrolysis gas separation unit, the gate valve and the air seal machine are matched to realize sealed continuous feeding, the arch breaking device mainly adopts a four-bar mechanism principle, and the driving rod is used as driving force through the motor to stir in a reciprocating mode in the hopper, so that normal conveying of materials is guaranteed.

6. The mobile straw carbonization and cracking device as claimed in claim 4, wherein the staged pyrolysis and carbonization unit comprises: the device comprises a sectional heating furnace, a pyrolysis main screw, a variable frequency motor, a carbon outlet, an air outlet and a filter screen; the segmentation heating furnace inboard is the pyrolysis chamber, and the outside is the combustion chamber, and the segmentation heating furnace is 4 furnace bodies of monomer PID control, inside the pyrolysis main screw was located the segmentation heating furnace, transported substance removed to the segmentation heating furnace right-hand member, inverter motor is connected with pyrolysis main screw left end, provides power for pyrolysis main screw, the charcoal outlet is connected with charcoal cooling unit in the bottom of segmentation heating furnace right-hand member, the gas outlet is connected with pyrolysis gas separating element at the top of segmentation heating furnace right-hand member, the filter screen sets up the gas outlet at the segmentation heating furnace, filters the dust removal.

7. The mobile straw carbonization and cracking device as claimed in claim 4, wherein the biochar cooling unit comprises: the device comprises a charcoal discharging inclined screw, a circulating water sleeve, a charcoal collecting box, an inclined screw driving motor, a variable frequency water pump and a water tank; the left end of the charcoal discharging inclined spiral is connected with a charcoal discharging port of the sectional heating furnace, the right end of the charcoal discharging inclined spiral is connected with an inclined spiral driving motor, the circulating water sleeve is installed in a cavity of the spiral conveyor, and a water outlet and a water inlet of the circulating water sleeve are respectively connected with a water inlet and a water outlet of the water tank.

8. The mobile straw carbonization and cracking device according to claim 4, wherein the pyrolysis gas separation unit comprises: the system comprises a tubular heat exchanger, a water chiller, a sleeve condenser and a three-phase separator; the water chiller can provide cold water with a water outlet of 10 ℃ for heat exchange of the tube still and the casing condenser, the water outlet of the water chiller is respectively connected with a water inlet of the tube still and a water inlet of the casing condenser, the water inlet of the water chiller is respectively connected with a water outlet of the tube still and a water outlet of the casing condenser, a gas inlet of the tube still is connected with a gas outlet of the segmented pyrolysis carbonization unit, a gas outlet of the tube still is connected with a gas-oil separator gas inlet, a discharge port of the gas-oil separator is connected with a feed port of the oil storage tank, the oil storage tank is used for storing pyrolysis tar, a gas inlet of the casing condenser is connected with a gas-oil separator gas outlet, a gas outlet of the casing condenser is connected with a gas inlet of the light oil collection tank and a feed port of the, the water storage tank is used for storing wood vinegar.