Continuous wood activated carbon carbonization device and method

Abstract

The invention discloses a continuous wooden activated carbon carbonization device and method, and particularly relates to the technical field of wooden activated carbon carbonization devices.The continuous wooden activated carbon carbonization device comprises a smashing mechanism, a feeding conveying mechanism, a carbonization furnace, a discharging conveying mechanism and a combustion bin, and the discharging end of the smashing mechanism communicates with the feeding end of the feeding conveying mechanism. According to the continuous wood activated carbon carbonization device and method, the carbonization operation of wood raw materials can be continuously carried out, discharging and feeding are uninterrupted, the carbonization process of the wood raw materials is completed, and the production efficiency is improved; wooden raw materials sequentially pass through the spiral heating channels in the multiple heating plates from top to bottom under pushing of the scraping device and then are discharged from an outlet of the carbonization furnace, the heating area of the wooden raw materials is increased, meanwhile, the spiral channels are wrapped with the spiral heating channels, the wooden raw materials are rapidly carbonized after making contact with the high-temperature heating plates, the production period is short, and the production efficiency is high. And the wood raw material is uniformly heated and carbonized when scraped by the scraping device.

Description

Technical Field

[0001] The invention relates to the field of wood activated carbon carbonization devices, and in particular to a continuous wood activated carbon carbonization device and method. Background Art

[0002] Chinese farmers have a long history of using crop straw. However, due to the low agricultural production level and low yield in the past, the amount of straw was small. Except for a small amount of straw used to feed livestock and some used for composting, most of the straw was burned as fuel. At present, my country's straw production is about 1.5 billion tons per year. With the popularization of clean energy such as liquefied gas and natural gas, a large amount of straw is surplus and cannot be used, resulting in large-scale straw burning in many places across the country, causing great pollution to the environment. Now my country has clearly enacted legislation to prohibit the burning of straw, and at the same time encourages the comprehensive utilization of crop straw.

[0003] Straw carbonization technology and activation technology have been widely used. Biochar can be obtained by carbonizing crop straw, which can replace charcoal and has been well applied. At the same time, crop straw can also be used to make activated carbon for more advanced applications. At present, the technology of making activated carbon from crop straw can be roughly divided into chemical method and physical method.

[0004] The physical method is to first crush the crop straw and then send it into the carbonization device to obtain biochar, and then send the biochar into the activation furnace to obtain porous activated carbon. However, the currently commonly used carbonization furnace charcoal making method still has some problems, including the large volume of the carbonization chamber, uneven carbonization degree, and difficult to control carbonization quality; the carbonization cycle is still long; the operation is intermittent, which is not convenient for continuous operation. Summary of the invention

[0005] The main purpose of the present invention is to provide a continuous wood activated carbon carbonization device and method, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] The continuous wood activated carbon carbonization device comprises a crushing mechanism, a feeding conveying mechanism, a carbonization furnace, a discharging conveying mechanism and a combustion chamber, wherein the discharging end of the crushing mechanism is connected with the feeding end of the feeding conveying mechanism, a controller is installed on the front side of the carbonization furnace, the interior of the carbonization furnace is divided into a storage chamber and a heating chamber distributed up and down, the outlet of the feeding conveying mechanism is connected with the storage chamber, the feeding port at the bottom of the carbonization furnace is connected with the discharging conveying mechanism, both the feeding conveying mechanism and the discharging conveying mechanism are spiral conveying mechanisms, a plurality of heating plates are fixedly installed on the inner wall of the heating chamber from top to bottom, and an electric A machine, a rotating rod is fixedly installed at the bottom output end of the motor, the lower end of the rotating rod rotates and extends through the heating chamber, a through hole is opened in the middle of the heating plate, the bottom of the rotating rod sequentially penetrates a plurality of through holes, and a plurality of scraping devices and anti-caking devices are fixedly installed on the outer surface of the rotating rod, the anti-caking device is arranged in the material storage chamber, the scraping devices are distributed above the heating plate, a spiral heating channel is opened on the top of the heating plate, a first discharge hole is opened at the bottom of the outer end of the spiral heating channel, a second discharge hole is opened at the bottom of the inner end of the spiral heating channel, a first discharge pipe is fixedly installed at the bottom of the first discharge hole, and a second discharge pipe is fixedly installed at the bottom of the second discharge pipe. A second feeding pipe is fixedly installed at the bottom of the feeding hole, the first feeding pipe and the second feeding pipe are both inclined, the outlet of the first feeding pipe is located above the lower spiral heating channel away from the first feeding hole, the outlet of the second feeding pipe is located above the lower spiral heating channel away from the second feeding hole, a spiral hot air channel is arranged inside the heating plate, the spiral hot air channel is wrapped around the outside of the spiral heating channel, and an air inlet pipe and an air outlet pipe connected to the spiral heating channel are fixedly installed outside the heating plate, the high-temperature smoke pipe of the combustion chamber is connected to the air inlet pipe of the lowest heating plate, and the air outlet pipe of the lower layer is connected to the air inlet pipe of the upper layer The pipes are connected together by a connecting pipe, and the scraper device includes a supporting plate, one end of the supporting plate is fixedly mounted on the outside of the rotating rod, a sliding groove is opened at the bottom of the supporting plate, a sliding rod is fixedly mounted in the sliding groove, a sliding block is slidably connected to the outer surface of the sliding rod, and the sliding block slides in the sliding groove, and a spring is sleeved on the outer surface of the sliding rod on the side of the sliding block close to the rotating rod, and a first scraper is fixedly mounted on the bottom of the sliding block, and the first scraper is slidably connected to the inner wall of the spiral heating channel. The scraper device can also turn the raw materials while scraping the wood raw materials, which can improve the heating uniformity of the wood raw materials and make the carbonization of the raw materials more uniform.

[0008] Preferably, the anti-caking device includes an inner ring and an outer ring, the inner ring is fixedly mounted on the outside of the rotating rod, a plurality of cross bars are fixedly mounted between the inner ring and the outer ring, the cross bars are slidably connected to the bottom wall of the storage chamber, a plurality of second scrapers are fixedly mounted on the upper end of the outer ring, the outer wall of the second scraper scrapes the inner wall of the storage chamber, and a plurality of stirring rods are fixedly mounted on the inner wall of the second scraper.

[0009] Preferably, the top wall of the heating chamber is fixedly equipped with a first feed pipe and a second feed pipe connected to the bottom of the storage chamber, and a rotary valve is provided at the end of the first feed pipe and the second feed pipe. The outlet of the first feed pipe and the outlet of the first discharge pipe are on the same vertical line, and the outlet of the second feed pipe and the outlet of the second discharge pipe are on the same vertical line.

[0010] Preferably, the bottom of the heating chamber is a conical structure, and a connecting sleeve is fixedly installed on the bottom of the outer surface of the rotating rod, and a scraper plate is fixedly installed on the connecting sleeve, and the scraper plate scrapes the conical surface of the heating chamber.

[0011] Preferably, a plurality of exhaust pipes are fixedly installed on the outside of the carbonization furnace and are respectively arranged above different heating plates, and the outer ends of the plurality of exhaust pipes are commonly connected to the main pipe. An induced draft fan is provided on the combustion chamber, and the air inlet of the induced draft fan is sealedly connected to the air outlet of the main pipe, and the air outlet of the induced draft fan is sealedly connected to the combustion chamber. The gas generated in the process of absorbing heat and carbonizing the wood raw material in the spiral heating channel is transported to the combustion chamber as fuel through the exhaust pipe, the main pipe and the induced draft fan, thereby improving energy utilization, reducing the emission of toxic and harmful gases, and protecting the environment.

[0012] Preferably, the crushing device includes a top plate and a bottom plate, a first connecting plate is fixedly installed on both sides between the top plate and the bottom plate, a first crushing roller and a second crushing roller are rotatably installed between the top plate and the bottom plate, a duckbill shovel is fixedly installed on the end of the bottom plate away from the first scraper, a driving rod is fixedly installed on the top of the first crushing roller and the second crushing roller, and the top of the driving rod rotates through the top plate and is respectively fixedly installed with a first gear, the two first gears are meshed with each other, a driving gear is arranged on the top of the first gear on one side, a planetary gear set is jointly installed between the driving gear and the first gear at the bottom, and the driving gear and the first gear at the bottom rotate in opposite directions under the cooperation of the planetary gear assembly, a second connecting plate is rotatably connected to the side of the top plate close to the first scraper, the second connecting plate is fixedly connected to the first scraper, a tooth groove is provided on the inner wall of the heating channel, and the second connecting plate is meshed with the tooth groove.

[0013] The method for using the continuous wood activated carbon carbonization device comprises the following steps:

[0014] 1): The wood raw materials are fed into the crushing mechanism for crushing, and the crushed raw materials are conveyed to the feed conveying mechanism;

[0015] 2): The feeding and conveying mechanism continuously conveys the crushed raw materials into the storage chamber;

[0016] 3): The combustion chamber works, and the high-temperature flue gas is transported to the spiral hot gas channel of the heating plate through the high-temperature flue gas pipe, and the multi-layer heating plate is preheated in advance through the air inlet pipe, the air outlet pipe, and the connecting pipe;

[0017] 4): The rotary valve on the first feeding pipe is opened to transport the raw materials in the storage chamber to the spiral heating channel. The motor drives the rotating rod to rotate clockwise, driving the support plate to rotate clockwise. The support plate drives the first scraper to slide in the spiral heating channel. The raw materials absorb heat and carbonize in the spiral heating channel, and then are transported from the second feeding hole to the spiral heating channel in the lower layer. Then the rotary valve on the second feeding pipe is opened to transport the raw materials in the storage chamber to the uppermost spiral heating channel. The motor drives the rotating rod to rotate counterclockwise, and the first scraper slides counterclockwise in the spiral heating channel to transport the materials from the first feeding pipe to the upper layer. The material discharge hole is transported to the spiral heating channel of the lower layer, and the process is repeated in sequence, driving the raw materials to be carbonized through multiple spiral heating channels in sequence and then discharged from the outlet of the carbonization furnace to the discharge conveying mechanism. At the same time, the first scraper drives the crushing device to move inside the spiral heating channel, thereby driving the driving gear to rotate in the tooth groove, and then drives the first gear at the bottom to rotate in the opposite direction through the planetary gear. The first gear drives the first crushing roller and the second crushing roller to rotate. At the same time, the duckbill shovel scoops up the wood raw materials, and the wood powder enters between the two crushing rollers for crushing, so as to avoid the coking and agglomeration of the wood raw materials, which affects the carbonization effect.

[0018] 5): The gas generated by the carbonization process of the wood raw material in the spiral heating channel is transported to the combustion chamber through the exhaust pipe, main pipe and induced draft fan to be burned as fuel, which improves energy utilization, reduces the emission of toxic and harmful gases, and protects the environment.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The invention discloses a continuous wood activated carbon carbonization device and method. The feeding conveying mechanism and the discharging conveying mechanism are provided, and the wood raw material can be continuously carbonized. The feeding and discharging are uninterrupted, so that the wood raw material completes the carbonization process, and the production efficiency is improved. The wood raw material is driven by a scraper device and discharged from the outlet of a carbonization furnace from top to bottom in turn through spiral heating channels in a plurality of heating plates, so that the heating area of ​​the wood raw material is increased. At the same time, the spiral channel is wrapped with a spiral heating channel outside, so that the wood raw material is quickly carbonized after contacting the high-temperature heating plate, and the production cycle is short. The wood raw material is evenly heated by being scraped by the scraper device. At the same time, the crushing device continuously crushes the wood raw material during the carbonization process, so that the wood raw material is prevented from being coked and agglomerated, which affects the carbonization effect, and the wood raw material is evenly carbonized. At the same time, wood chips continuously absorb heat and carbonize on the heating plate, and the gas generated in the carbonization process is drawn out by an induced draft fan through an upper reaction gas exhaust pipe, and is conveyed to a combustion chamber to be burned as fuel, thereby improving energy utilization, reducing the emission of toxic and harmful gases, and protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a cross-sectional view of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the heating plate, the motor, the scraping device and the rotating rod of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the heating plate of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the scraping device of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the anti-caking device of the present invention;

[0027] Figure 7 It is a schematic diagram of the connection between the crushing device and the first scraper of the present invention.

[0028] In the figure: 1. crushing mechanism; 2. feeding and conveying mechanism; 3. carbonization furnace; 4. discharging and conveying mechanism; 5. combustion chamber; 6. high-temperature flue gas pipe; 7. induced draft fan; 8. motor; 9. rotating rod; 10. heating plate; 11. first feeding pipe; 12. second feeding pipe; 13. scraping device; 14. air inlet pipe; 15. air outlet pipe; 16. connecting pipe; 17. exhaust pipe; 18. main pipe; 19. connecting sleeve; 20. scraping plate; 21. first feeding hole; 22. second feeding hole; 23. through hole; 101. spiral heating channel; 24. first feeding pipe; 25. second feeding pipe; 26. control device; 31, storage chamber; 32, heating chamber; 131, support plate; 132, slide groove; 133, slide rod; 134, spring; 135, slider; 136, first scraper; 271, inner ring; 272, outer ring; 273, cross bar; 274, second scraper; 275, stirring rod; 281, top plate; 282, first connecting plate; 283, bottom plate; 284, first crushing roller; 285, second crushing roller; 286, first gear; 287, driving gear; 288, second connecting plate; 289, duckbill shovel; 1011, tooth groove; 27, anti-caking device; 28, crushing device. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] Embodiment 1

[0031] See also Figure 1-7As shown in the figure, the continuous wood activated carbon carbonization device includes a crushing mechanism 1, which adopts the existing commonly used crushing equipment, which will not be elaborated here, and is used to crush the wood raw material to expand the heating area of ​​the raw material during carbonization, and the heat carbonization efficiency is high; a feeding conveying mechanism 2 is used to convey the crushed raw material to the carbonization furnace 3; the carbonization furnace 3 is used to receive the material from the feeding conveying mechanism 2 and perform carbonization treatment; a discharging conveying mechanism 4 is used to convey the carbonized charcoal to the inside of the activation equipment to prepare activated carbon; a combustion chamber 5 ignites the fuel to generate high-temperature hot gas and convey it to the carbonization furnace 3 to heat and carbonize the wood raw material; the discharging end of the crushing mechanism 1 is connected to the feeding end of the feeding conveying mechanism 2, and the inside of the carbonization furnace 3 is divided into a storage chamber 31 and a heating chamber 32 distributed up and down. The outlet of the feeding conveying mechanism 2 is communicated with the storage chamber 31, the unloading port at the bottom of the carbonization furnace 3 is communicated with the discharging conveying mechanism 4, a plurality of heating discs 10 are fixedly installed on the inner wall of the heating chamber 32 from top to bottom, a motor 8 is fixedly installed on the top of the carbonization furnace 3, a rotating rod 9 is fixedly installed on the bottom output end of the motor 8, the motor 8 is a servo motor 8, which can drive the rotating rod 9 to rotate forward and reverse, the lower end of the rotating rod 9 rotates and extends into the heating chamber 32, a through hole 23 is opened in the middle of the heating disc 10, the bottom of the rotating rod 9 passes through a plurality of through holes 23 in sequence, and a plurality of scraping devices 13 are fixedly installed on the outer surface of the rotating rod 9, and the scraping devices 13 are distributed above the heating disc 10, and a controller 26 is installed on the front side of the carbonization furnace 3, and the controller 26 is connected to the motor 8, the induced draft fan 7 and the rotary valve.

[0032] A spiral heating channel 101 is provided on the top of the heating plate 10, a first discharge hole 21 is provided at the bottom of the outer end of the spiral heating channel 101, a second discharge hole 22 is provided at the bottom of the inner end of the spiral heating channel 101, a first discharge pipe 11 is fixedly installed at the bottom of the first discharge hole 21, a second discharge pipe 12 is fixedly installed at the bottom of the second discharge hole 22, the first discharge pipe 11 and the second discharge pipe 12 are both inclined, the outlet of the first discharge pipe 11 is located above the lower spiral heating channel 101 away from the first discharge hole 21, the outlet of the second discharge pipe 12 is located above the lower spiral heating channel 101 away from the second discharge hole 22, the top wall of the heating chamber 32 is fixedly installed with a first feeding pipe 24 and a second feeding pipe 25 which are connected to the bottom of the storage chamber 31, the first feeding pipe 24 and the second feeding pipe 25 are at the ends A rotary valve is provided at both ends, the discharge port of the first feed pipe 24 and the outlet of the first discharge pipe 11 are on the same vertical line, and the outlet of the second feed pipe 25 and the outlet of the second discharge pipe 12 are on the same vertical line. The raw material is transported from the upper first feed pipe 24 or the second feed pipe 25 to the uppermost spiral heating channel 101. When the raw material is fed from the first feed pipe 24, the motor 8 drives the rotating rod 9 to rotate clockwise, driving the first scraper 136 to approach from the first discharge hole 21 to the second discharge hole 22. When the raw material is fed from the second feed pipe 25, the motor 8 drives the rotating rod 9 to rotate counterclockwise, driving the first scraper 136 to approach from the second discharge hole 22 to the first discharge hole 21. The first scraper 136 repeatedly moves in the spiral heating channel 101, thereby driving the raw material to be heated and carbonized from top to bottom. After multiple heating, the carbonization quality is improved.

[0033] Furthermore, in order to facilitate the falling of the first feed pipe 24 and the second feed pipe 25, an anti-caking device 27 is arranged in the storage chamber 31, and the anti-caking device 27 includes an inner ring 271 and an outer ring 272, and the inner ring 271 is fixedly installed on the outside of the rotating rod 9, and a plurality of cross bars 273 are fixedly installed between the inner ring 271 and the outer ring 272, and the cross bars 273 are slidably connected to the bottom wall of the storage chamber 31, and a plurality of second scrapers 274 are fixedly installed on the upper end of the outer ring 272, and the outer wall of the second scraper 274 scrapes the inner wall of the storage chamber 31, and a plurality of stirring rods 275 are fixedly installed on the inner wall of the second scraper 274. When in use, the rotating rod 9 drives the inner ring 271 to rotate, the inner ring 271 drives the cross bar 273 to rotate, and the cross bar 273 drives the wood raw material to move and enter the first feeding pipe 24 and the second feeding pipe 25. At the same time, the outer ring 272 drives the second scraper 274 to scrape the inner wall of the storage chamber 31, which can prevent the wood raw material from adhering to the inner wall and causing waste. The provided stirring rod 275 can break up the wood raw material to prevent the raw material powder from agglomerating and affecting the feeding.

[0034] Driven by the scraping device 13, the raw materials are sequentially conveyed from the upper spiral heating channel 101 to the lower spiral conveying channel, heated and carbonized multiple times, which expands the heating area of the raw materials, enables the raw materials to be quickly carbonized after contacting the heating plate 10, improves the carbonization uniformity and efficiency of the raw materials, and has a short production cycle.

[0035] A spiral hot gas channel is arranged inside the heating plate 10. The spiral hot gas channel is wrapped outside the spiral heating channel 101. An air inlet pipe 14 and an air outlet pipe 15 communicated with the spiral heating channel 101 are fixedly installed outside the heating plate 10. The high-temperature flue gas pipe 6 of the combustion chamber 5 is communicated with the air inlet pipe 14 of the lowermost heating plate 10. The air outlet pipe 15 of the lower layer is connected with the air inlet pipe 14 of the upper layer through a connecting pipe 16. The flue gas enters from the lower heating plate 10 and is discharged from the upper heating plate 10. The wood raw materials reach the lower heating plate 10 from the upper heating plate 10 and are discharged from the lower end. The high-temperature flue gas and the wood raw materials transfer heat in a countercurrent manner, improving the heat transfer efficiency.

[0036] The bottom of the heating chamber 32 is of a conical structure. A connecting sleeve 19 is fixedly installed on the outer surface of the bottom of the rotating rod 9. A scraping plate 20 is fixedly installed on the connecting sleeve 19. The scraping plate 20 scrapes on the conical surface of the heating chamber 32. The carbonized raw materials fall to the bottom of the carbonization furnace 3, and the raw materials at the bottom of the carbonization furnace 3 are scraped into the lower discharging and conveying mechanism 4 by the scraping plate 20.

[0037] A plurality of exhaust pipes 17 are fixedly installed outside the carbonization furnace 3, which are respectively arranged above different heating plates 10. The outer ends of the plurality of exhaust pipes 17 are jointly connected with a main pipe 18. An induced draft fan 7 is arranged on the combustion chamber 5. The air inlet of the induced draft fan 7 is hermetically connected with the air outlet of the main pipe 18. The air outlet of the induced draft fan 7 is hermetically communicated with the combustion chamber 5. The wood chips continuously absorb heat and are carbonized on the heating plate 10. The gas generated during the carbonization process is led out by the upper reaction gas exhaust pipe 17 by the induced draft fan 7 and conveyed into the combustion chamber 5 for combustion as fuel, improving the energy utilization rate, reducing the emission of toxic and harmful gases, and protecting the environment.

[0038] The scraper device 13 includes a support plate 131, one end of which is fixedly mounted on the outside of the rotating rod 9, a slide groove 132 is provided at the bottom of the support plate 131, a slide rod 133 is fixedly mounted in the slide groove 132, a slider 135 is slidably connected to the outer surface of the slider 133, and the slider 135 slides in the slide groove 132, and a spring 134 is sleeved on the outer surface of the slider 133 located on the side of the slider 135 close to the rotating rod 9, and a first scraper 136 is fixedly mounted on the bottom of the slider 135, the first scraper 136 is slidably connected to the inner wall of the spiral heating channel 101, and the crushing device 28 is fixedly connected on both sides of the first scraper 136. When the rotating rod 9 rotates, the support plate 131 is driven to rotate, and the support plate 131 drives the slider 135 to slide along the slide rod 133, drives the first scraper 136 to slide along the spiral spiral heating channel 101, and drives the wood raw material to slide.

[0039] In order to prevent the wood powder from agglomerating together during the process of carbonization by heating, thereby affecting the carbonization effect of the wood raw materials, a crushing device 28 is provided on both sides of the first scraper 136. During the movement of the first scraper 136, the wood raw materials in the spiral heating channel 101 are continuously crushed to improve the carbonization effect of the wood raw materials. The present invention provides a preferred scheme of the crushing device 28, wherein the crushing device 28 comprises a top plate 281 and a bottom plate 283, and first connecting plates 282 are fixedly installed on both sides between the top plate 281 and the bottom plate 283, and first crushing rollers 284 and second crushing rollers 285 are rotatably installed between the top plate 281 and the bottom plate 283, and a duckbill shovel 289 is fixedly installed at one end of the bottom plate 283 away from the first scraper 136, and driving rods are fixedly installed on the tops of the first crushing rollers 284 and the second crushing rollers 285, and the tops of the driving rods rotate and penetrate the top plate 281 and are fixedly installed with first gears 286, respectively, and the two first gears 286 are meshed with each other, and the first gears on one side are meshed with each other. A driving gear 287 is provided on the top of the wheel 286, and a planetary gear set is installed between the driving gear 287 and the first gear 286 at the bottom. The driving gear 287 and the first gear 286 at the bottom rotate in opposite directions under the cooperation of the planetary gear assembly. The top plate 281 is rotatably connected to the side close to the first scraper 136 with a second connecting plate 288, and the second connecting plate 288 is fixedly connected to the first scraper 136. A tooth groove 1011 is provided on the inner wall of the heating channel, and the second connecting plate 288 is meshed with the tooth groove 1011. When in use, the first scraper 136 drives the crushing device 28 to move inside the spiral heating channel 101, thereby driving the driving gear 287 to rotate in the tooth groove 1011, and then drives the lower first gear 286 to rotate in the opposite direction through the planetary gear. The first gear 286 drives the first crushing roller 284 and the second crushing roller 285 to rotate. At the same time, the duckbill shovel 289 shovels up the wood raw material, and the wood powder enters between the two crushing rollers for crushing, so as to avoid the coking and agglomeration of the wood raw material and affect the carbonization effect.

[0040] Embodiment 2

[0041] The method for using the continuous wood activated carbon carbonization device comprises the following steps:

[0042] 1): The wood raw material is fed into the crushing mechanism 1 for crushing, and the crushed raw material is conveyed to the feed conveying mechanism 2;

[0043] 2): The feeding and conveying mechanism 2 continuously conveys the crushed raw materials into the storage chamber 31;

[0044] 3): Natural gas and air mixer are introduced into the combustion chamber 5 for ignition, and high-temperature flue gas is transported to the spiral hot gas channel of the heating plate 10 through the high-temperature flue gas pipe 6, and the multi-layer heating plate 10 is preheated in advance through the air inlet pipe 14, the air outlet pipe 15, and the connecting pipe 16;

[0045] 4): The rotary valve on the first feeding pipe 24 is opened to transport the raw materials in the storage chamber 31 to the spiral heating channel 101. The motor 8 drives the rotating rod 9 to rotate clockwise, driving the support plate 131 to rotate clockwise. The support plate 131 drives the first scraper 136 to slide in the spiral heating channel 101. The raw materials absorb heat and carbonize in the spiral heating channel 101, and then are transported from the second discharge hole 22 to the spiral heating channel 101 of the lower layer. Then, the rotary valve on the second feeding pipe 25 is opened to transport the raw materials in the storage chamber 31 to the uppermost spiral heating channel 101. The motor 8 drives the rotating rod 9 to rotate counterclockwise, and slides counterclockwise in the spiral heating channel 101 through the first scraper 136 to transport the materials from the first discharge hole 21 to the spiral heating channel 101 of the lower layer. This is repeated in sequence, driving the raw materials to pass through multiple spiral heating channels in sequence. After carbonization, the wood chips are discharged from the outlet of the carbonization furnace 3 to the discharging conveying mechanism 4 through the channel 101. At the same time, the first scraper 136 drives the crushing device 28 to move inside the spiral heating channel 101, thereby driving the driving gear 287 to rotate in the tooth groove 1011, and then drives the first gear 286 at the bottom to rotate in the opposite direction through the planetary gear. The first gear 286 drives the first crushing roller 284 and the second crushing roller 285 to rotate. At the same time, the duckbill shovel 289 scoops up the wood raw materials, and the wood powder enters between the two crushing rollers for crushing to avoid the coking and agglomeration of the wood raw materials and affect the carbonization effect. The residence time of the wood chips on the heating plate 10 can also be controlled by controlling the speed of the motor 8, and the reaction temperature can be controlled by the flue gas temperature and flow rate, so that the equipment can adapt to the changes in physical properties and feeding speed within a certain range, and can be suitable for producing carbon powder from different wood raw materials;

[0046] 5): The gas generated during the carbonization process of the wood raw material in the spiral heating channel 101 is transported to the combustion chamber 5 through the exhaust pipe 17, the main pipe 18 and the induced draft fan 7 to be reused as fuel, thereby improving energy utilization, reducing the emission of toxic and harmful gases, and protecting the environment.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Continuous wood activated carbon carbonization device, characterized by: The carbonization furnace (3) comprises a crushing mechanism (1), a feeding conveying mechanism (2), a carbonization furnace (3), a discharging conveying mechanism (4) and a combustion chamber (5); the discharging end of the crushing mechanism (1) is connected to the feeding end of the feeding conveying mechanism (2); the interior of the carbonization furnace (3) is divided into a storage chamber (31) and a heating chamber (32) distributed up and down; the outlet of the feeding conveying mechanism (2) is connected to the storage chamber (31); the discharge port at the bottom of the carbonization furnace (3) is connected to the discharging conveying mechanism (4); a plurality of heating plates (10) are fixedly installed on the inner wall of the heating chamber (32) from top to bottom; a motor (8) is fixedly installed on the top of the carbonization furnace (3); a rotating rod (9) is fixedly installed on the bottom output end of the motor (8); and the lower end of the rotating rod (9) is rotated The rotating rod (9) is provided with a through hole (23) in the middle of the heating plate (10), and the bottom of the rotating rod (9) is penetrated by a plurality of through holes (23) in sequence, and a plurality of scraping devices (13) and anti-caking devices (27) are fixedly mounted on the outer surface of the rotating rod (9), the anti-caking device (27) is mounted in the material storage chamber (31), and the scraping devices (13) are distributed above the heating plate (10). A controller (26) is mounted on the front side of the carbonization furnace (3), and the bottom of the heating chamber (32) is a conical structure, and a connecting sleeve (19) is fixedly mounted on the bottom of the outer surface of the rotating rod (9), and a scraping plate (20) is fixedly mounted on the connecting sleeve (19), and the scraping plate (20) scrapes the conical surface of the heating chamber (32).

2. The continuous wood activated carbon carbonization device according to claim 1 is characterized in that: The top of the heating plate (10) is provided with a spiral heating channel (101), the outer bottom of the spiral heating channel (101) is provided with a first discharge hole (21), and the inner bottom of the spiral heating channel (101) is provided with a second discharge hole (22).

3. The continuous wood activated carbon carbonization device and method according to claim 2, characterized in that: A first material discharge pipe (11) is fixedly installed at the bottom of the first material discharge hole (21), and a second material discharge pipe (12) is fixedly installed at the bottom of the second material discharge hole (22). The first material discharge pipe (11) and the second material discharge pipe (12) are both arranged obliquely. The outlet of the first material discharge pipe (11) is located above the lower spiral heating channel (101) away from the first material discharge hole (21), and the outlet of the second material discharge pipe (12) is located above the lower spiral heating channel (101) away from the second material discharge hole (22).

4. The continuous wood activated carbon carbonization device according to claim 3 is characterized in that: The top wall of the heating chamber (32) is fixedly provided with a first feed pipe (24) and a second feed pipe (25) which are connected to the bottom of the storage chamber (31); a rotary valve is provided at the end of each of the first feed pipe (24) and the second feed pipe (25); the outlet of the first feed pipe (24) and the outlet of the first discharge pipe (11) are on the same vertical line; and the outlet of the second feed pipe (25) and the outlet of the second discharge pipe (12) are on the same vertical line.

5. The continuous wood activated carbon carbonization device and method according to claim 1, characterized in that: The heating plate (10) is provided with a spiral hot air channel inside, the spiral hot air channel is wrapped around the outside of the spiral heating channel (101), and an air inlet pipe (14) and an air outlet pipe (15) connected to the spiral heating channel are fixedly installed outside the heating plate (10), the high-temperature smoke pipe (6) of the combustion chamber (5) is connected to the air inlet pipe (14) of the bottom heating plate (10), and the air outlet pipe (15) of the bottom layer is connected to the air inlet pipe (14) of the upper layer through a connecting pipe (16).

6. The continuous wood activated carbon carbonization device according to claim 1, characterized in that: The anti-caking device (27) comprises an inner ring (271) and an outer ring (272), wherein the inner ring (271) is fixedly mounted on the outside of the rotating rod (9), and a plurality of cross bars (273) are fixedly mounted between the inner ring (271) and the outer ring (272), wherein the cross bars (273) are slidably connected to the bottom wall of the material storage chamber (31), and a plurality of second scrapers (274) are fixedly mounted on the upper end of the outer ring (272), wherein the outer wall of the second scraper (274) scrapes the inner wall of the material storage chamber (31), and a plurality of stirring rods (275) are fixedly mounted on the inner wall of the second scraper (274).

7. The continuous wood activated carbon carbonization device according to claim 1 is characterized in that: A plurality of exhaust pipes (17) are fixedly installed on the outside of the carbonization furnace (3), and are respectively arranged above different heating plates (10), and the outer ends of the plurality of exhaust pipes (17) are commonly connected to a main pipe (18). An induced draft fan (7) is arranged on the combustion chamber (5), and the air inlet of the induced draft fan (7) is sealedly connected to the air outlet of the main pipe (18), and the air outlet of the induced draft fan (7) is sealedly connected to the combustion chamber (5).

8. The continuous wood activated carbon carbonization device according to claim 2, characterized in that: The scraper device (13) comprises a support plate (131), one end of which is fixedly mounted on the outside of the rotating rod (9), a slide groove (132) is provided at the bottom of the support plate (131), a slide rod (133) is fixedly mounted in the slide groove (132), the outer surface of the slide rod (133) is slidably connected with a slider (135), the slider (135) slides in the slide groove (132), the outer surface of the slide rod (133) is located on the side of the slider (135) close to the rotating rod (9) and is sleeved with a spring (134), a first scraper (136) is fixedly mounted on the bottom of the slider (135), the first scraper (136) is slidably connected to the inner wall of the spiral heating channel (101), and crushing devices (28) are fixedly mounted at both ends of the first scraper (136).

9. The continuous wood activated carbon carbonization device according to claim 8, characterized in that: The crushing device (28) comprises a top plate (281) and a bottom plate (283), first connecting plates (282) are fixedly installed on both sides between the top plate (281) and the bottom plate (283), a first crushing roller (284) and a second crushing roller (285) are rotatably installed between the top plate (281) and the bottom plate (283), a duckbill shovel (289) is fixedly installed on one end of the bottom plate (283) away from the first scraper (136), a driving rod is fixedly installed on the top of the first crushing roller (284) and the second crushing roller (285), and the top of the driving rod rotates through the top plate (281) and is fixedly installed with a first gear (286), the two first The gears (286) are meshed with each other. A driving gear (287) is arranged on the top of the first gear (286) on one side. A planetary gear set is installed between the driving gear (287) and the first gear (286) at the bottom. The driving gear (287) and the first gear (286) at the bottom rotate in opposite directions under the cooperation of the planetary gear assembly. A second connecting plate (288) is rotatably connected to a side of the top plate (281) close to the first scraper (136). The second connecting plate (288) is fixedly connected to the first scraper (136). A tooth groove (1011) is provided on the inner wall of the heating channel (101), and the second connecting plate (288) meshes with the tooth groove (1011).

10. The method for using the continuous wood activated carbon carbonization device according to claims 1-9, characterized in that: The steps include: 1): The wood raw material is fed into a crushing mechanism (1) for crushing, and the crushed raw material is conveyed to a feed conveying mechanism (2); 2): The feed conveying mechanism (2) continuously conveys the crushed raw materials into the storage chamber (31); 3): The combustion chamber (5) works to transport the high-temperature flue gas through the high-temperature flue gas pipe (6) to the spiral hot gas channel of the heating plate (10), and preheat the multi-layer heating plate (10) through the air inlet pipe (14), the air outlet pipe (15), and the connecting pipe (16); 4): The rotary valve on the first feed pipe (24) is opened to transport the raw material in the storage chamber (31) to the spiral heating channel (101). The motor (8) drives the rotating rod (9) to rotate clockwise, driving the support plate (131) to rotate clockwise. The support plate (131) drives the first scraper (136) to slide in the spiral heating channel (101). The raw material absorbs heat and carbonizes in the spiral heating channel (101). Then, the raw material is transported from the second discharge hole (22) to the spiral heating channel (101) at the lower layer. Then, the rotary valve on the second feed pipe (25) is opened to transport the raw material in the storage chamber (31) to the uppermost spiral heating channel (101). The motor (8) drives the rotating rod (9) to rotate counterclockwise, and the first scraper (136) slides counterclockwise in the spiral heating channel (101). The material is transported from the first discharge hole (21) to the spiral heating channel (101) of the lower layer, and this process is repeated in sequence, so that the material is driven to pass through the plurality of spiral heating channels (101) in sequence for carbonization and then discharged from the outlet of the carbonization furnace (3) to the discharge conveying mechanism (4). At the same time, the first scraper (136) drives the crushing device (28) to move inside the spiral heating channel (101), thereby driving the driving gear (287) to rotate in the tooth groove (1011), and then driving the first gear (286) at the bottom to rotate in the opposite direction through the planetary gear. The first gear (286) drives the first crushing roller (284) and the second crushing roller (285) to rotate. At the same time, the duckbill shovel (289) scoops up the wood material, and the wood powder enters between the two crushing rollers for crushing, so as to avoid the wood material from coking and agglomerating, thereby affecting the carbonization effect; 5): Gas generated during the carbonization process of the wood raw material absorbing heat in the spiral heating channel (101) is transported to the combustion chamber (5) through the exhaust pipe (17), the main pipe (18) and the induced draft fan (7) to be burned as fuel.

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