A carbonization furnace

Abstract

The present invention provides a carbonization furnace, which relates to the technical field of carbonization equipment, and solves the technical problems of low efficiency and poor effect of existing carbonization furnaces in the prior art. The furnace comprises a combustion chamber, a carbonization chamber and a rotating device, wherein an isolation area and a communication area are arranged on the top of the combustion chamber, the carbonization chamber is arranged above the combustion chamber, the combustion chamber is communicated with the carbonization chamber through the communication area, a carbonization chamber is arranged inside the carbonization chamber, and the carbonization chamber is transmission-connected to the rotating device; the carbonization chamber is isolated from the combustion chamber by the isolation area so that the carbonization chamber forms a changing area, and the carbonization chamber can rotate relative to the combustion chamber under the drive of the rotating device and be communicated with the combustion chamber through communication areas with different communication areas in turn, so that the carbonization chamber forms a heating area and a temperature area in turn; the present invention can realize continuous production, which not only has high production efficiency but also has remarkable production effect.

Description

Technical Field

[0001] The invention relates to the technical field of carbonization equipment, and in particular to a carbonization furnace. Background Art

[0002] Biomass refers to various organic substances formed through photosynthesis. The equipment used for carbonizing biomass raw materials is called a carbonization furnace, which is the core equipment for biomass carbonization.

[0003] Most of the traditional carbonization furnaces cannot achieve continuous production, and their carbonization efficiency is low and the effect is poor. The existing carbonization furnaces, such as various brick kilns, vertical stirring furnaces, horizontal spiral furnaces, horizontal rotary furnaces or fluidized bed furnaces, have many shortcomings. The existing carbonization furnaces have poor continuous carbonization effect. Most of the existing carbonization furnaces are furnace types for processing crushed charcoal, which are not suitable for processing formed charcoal. Moreover, during the carbonization process of the existing carbonization furnaces, the residence time of the liquid phase component is too short, the carbonization yield is poor, the mechanical strength of the carbonized carbon material is unstable, the effect is poor, and the tar easily blocks the pipeline. At the same time, the existing carbonization furnaces do not make high use of wood tar, the wood tar has an unpleasant odor, and is in a gelatinous solid state at low temperature, which is difficult to handle and affects the use. All of these greatly affect the carbonization efficiency and carbonization effect. Summary of the invention

[0004] The purpose of the present invention is to provide a carbonization furnace to solve the technical problems of low efficiency and poor effect of the existing carbonization furnaces in the prior art; the preferred technical scheme among the many technical schemes provided by the present invention can produce many technical effects (the carbonization chamber is circulated in sequence to form a replacement zone, a preheating zone, a rapid heating zone, a slow heating zone, a medium temperature zone, a high temperature zone, a heat preservation zone and a cooling zone, on the one hand, it can realize mechanical continuous production, directly obtain the cooled finished charcoal, and have high production efficiency; on the other hand, the entire heating process is like a double-hump heating curve, which better matches the heating decomposition and condensation characteristics of biomass, and the charcoal The carbonization effect is remarkable; the confluence pipe, air delivery pipeline and gas delivery pipeline can deliver air and combustible gas generated in the carbonization chamber to the combustion chamber, so that energy can be fully utilized; the load-bearing bracket includes a load-bearing ring and a load-bearing beam. On the one hand, it serves as the main bracket of the carbonization chamber and can carry the material box. On the other hand, the load-bearing beam is connected with the load-bearing ring by a socket connection, which can eliminate thermal stress; the return pipe includes an inner pipe and an outer pipe. The air delivery pipeline is connected with the inner pipe and the heat dissipation pipe. On the one hand, the heat dissipation pipe can cool the load-bearing bracket. On the other hand, it cooperates with the air delivery pipeline and the inner pipe to deliver air to the combustion chamber. The carbonization furnace includes a fan, which provides power for air delivery; the gas delivery pipeline includes a T-shaped gas pipe, which can connect all the material boxes in the carbonization chamber on the one hand, and is connected to the outer pipe on the other hand, so as to deliver the combustible gas generated in the material box to the combustion chamber; the material box can hold the material on the one hand, and condense the tar on the other hand, so that the tar can be heated and decomposed for the second time, realizing the online utilization of the tar and solving the problem of tar blocking the pipeline; the driving device includes a turntable and a driving device, and a moving device is arranged at the lower side of the carbonization chamber, and the moving device Arranged in the annular support guide rail, the turntable and the driving device can drive the carbonization chamber to rotate. On the one hand, the annular support guide rail can support the carbonization chamber, and on the other hand, it cooperates with the moving device to guide the circular motion of the carbonization chamber; the upper and lower sides of the output gear are respectively provided with an upper retaining ring and a lower retaining ring, and the outer edge of the lower retaining ring is abutted against a vertical guide wheel, which is used to position the circumferential and radial relative position of the output gear; the driving device includes a power device, a driving shaft and a bearing seat assembly, which provides rotational power for the carbonization chamber, and the horizontal retaining wheel and the vertical retaining wheel are used for positioning the bearing seat assembly, etc.); see the following for details.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A carbonization furnace provided by the present invention comprises a combustion chamber, a carbonization chamber and a rotating device, wherein: an isolation zone and a communication zone are arranged on the top of the combustion chamber, the number of the communication zones is set to at least two, the carbonization chamber is arranged above the combustion chamber, the combustion chamber is connected with the carbonization chamber through the communication zone, a carbonization chamber is arranged inside the carbonization chamber, and the carbonization chamber is transmission-connected with the rotating device; the carbonization chamber is isolated from the combustion chamber by the isolation zone so that the carbonization chamber forms a changing zone, and the carbonization chamber can rotate relative to the combustion chamber under the drive of the rotating device and be sequentially connected with the combustion chamber through the communication zones with different communication areas, so that the carbonization chamber forms a heating zone and a temperature zone in sequence.

[0007] Preferably, the isolation zone includes a first isolation zone and a second isolation zone, the heating zone includes a preheating zone, a rapid heating zone and a slow heating zone, and the temperature zone includes a medium temperature zone, a high temperature zone and a heat preservation zone, wherein: the carbonization chamber is isolated from the combustion chamber by the first isolation zone to form the changing zone; the carbonization chamber rotates under the drive of the rotating device so that the carbonization chamber is isolated from the combustion chamber through the second isolation zone to form a cooling zone; the connection area of ​​the preheating zone corresponding to the communication zone is smaller than the connection area of ​​the rapid heating zone corresponding to the communication zone, and the connection area of ​​the slow heating zone corresponding to the communication zone is smaller than the connection area of ​​the rapid heating zone corresponding to the communication zone; the connection area of ​​the medium temperature zone corresponding to the communication zone is smaller than the connection area of ​​the high temperature zone corresponding to the communication zone, and the connection area of ​​the heat preservation zone corresponding to the communication zone is smaller than the connection area of ​​the high temperature zone corresponding to the communication zone; the carbonization chamber is driven by the rotating device to circulate in sequence to form the changing zone, the preheating zone, the rapid heating zone, the slow heating zone, the medium temperature zone, the high temperature zone, the heat preservation zone and the cooling zone.

[0008] Preferably, a manifold, an air delivery pipeline and a gas delivery pipeline are provided in the carbonization chamber, wherein: the air delivery pipeline and the gas delivery pipeline are both connected and arranged on the manifold; and the manifold is connected to the combustion chamber.

[0009] Preferably, a load-bearing support is provided at the bottom of the carbonization chamber, the manifold is vertically arranged in the middle position of the load-bearing support, the load-bearing support includes a load-bearing ring and a load-bearing beam, wherein: the load-bearing beam is arranged on the radius of the load-bearing ring, the number of the load-bearing beams is at least three, and all the load-bearing beams are evenly arranged circumferentially; the load-bearing beam is connected to the load-bearing ring by socket.

[0010] Preferably, the manifold comprises an inner tube and an outer tube sleeved on the outside of the inner tube, a heat dissipation pipe is axially arranged inside the load-bearing beam, and the heat dissipation pipe passes through the load-bearing ring, wherein: the outlet end of the air delivery pipeline passes through the outer tube and is connected to the inner tube, and the inlet end of the air delivery pipeline is inserted into the load-bearing beam and is connected to the heat dissipation pipe.

[0011] Preferably, the carbonization furnace also includes a blower, which includes a motor, a transmission shaft and a fan, wherein: the input end of the transmission shaft is transmission-connected to the motor; the output end of the transmission shaft is axially inserted into the inner tube along the manifold and transmission-connected to the fan, and the fan is located below the outlet end of the air delivery pipeline.

[0012] Preferably, the gas delivery pipeline includes a T-shaped gas pipe, which is vertically arranged on the manifold, and a material box is arranged in the carbonization chamber, wherein: the outlet end of the T-shaped gas pipe is connected to the outer pipe; the two inlet ends of the T-shaped gas pipe are respectively arranged in two adjacent carbonization chambers and connected to the corresponding material boxes.

[0013] Preferably, the rotating device includes a turntable and a driving device, wherein: the carbonization chamber is arranged on an annular support guide rail, a moving device is arranged on the lower side of the carbonization chamber, the moving device is arranged in the annular support guide rail and can move along the annular support guide rail; the turntable is installed on the carbonization chamber and rotates synchronously with the carbonization chamber, the outer sleeve of the turntable is provided with an output gear, and the output gear is transmission-connected to the driving device.

[0014] Preferably, an upper retaining ring is provided on the upper side of the output gear, and a lower retaining ring is provided on the lower side of the output gear; a vertical guide wheel is provided against the outer edge of the lower retaining ring.

[0015] Preferably, the driving device includes a power device, a driving shaft, a bearing seat assembly and a transmission device, wherein: the output end of the power device is connected to the input end of the driving shaft by transmission; the output end of the driving shaft passes through the bearing seat assembly and is connected to the output gear by transmission through the transmission device; a horizontal stop wheel and a vertical stop wheel are arranged on the outer side of the bearing seat assembly.

[0016] The carbonization furnace provided by the present invention has at least the following beneficial effects:

[0017] The carbonization chamber comprises a combustion chamber, a carbonization chamber and a rotating device, wherein the combustion chamber provides heat for the carbonization chamber, the carbonization chamber is used for carbonization of materials, and the rotating device provides rotational power for the carbonization chamber; an isolation zone and a communication zone are arranged on the top of the combustion chamber, and the number of the communication zones is at least two, the carbonization chamber is arranged above the combustion chamber, the combustion chamber is connected with the carbonization chamber through the communication zone, a carbonization cavity is arranged inside the carbonization chamber, the carbonization chamber is transmission-connected with the rotating device, the isolation zone is used to isolate the carbonization cavity and the combustion chamber, the communication zone is used to connect the carbonization cavity and the combustion chamber, and the carbonization cavity is used to hold materials; the carbonization cavity The carbonization chamber is isolated from the combustion chamber by the isolation zone so that the carbonization chamber forms a changing zone. The carbonization chamber rotates relative to the combustion chamber under the drive of the rotating device and is connected with the combustion chamber through the connecting zones with different connecting areas in sequence, so that the carbonization chamber circulates in sequence to form a heating zone and a temperature zone. The connecting zones at different positions have different connecting areas, and the rotating carbonization chamber can respectively form heating zones and temperature zones with different temperatures. The present invention drives the carbonization chamber to rotate by the rotating device and then drives the carbonization chamber to rotate. The combustion chamber and the isolation zones and connecting zones at different positions can make the carbonization chamber circulate in sequence to form multiple areas with different temperatures, thereby realizing continuous production with high efficiency and significant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the carbonization chamber and the rotating device of the present invention;

[0021] Figure 3 It is a schematic diagram of the connection structure between the carbonization chamber and the rotating device of the present invention;

[0022] Figure 4 It is a simplified diagram of the structure of each region formed during the rotation of the carbonization chamber of the present invention;

[0023] Figure 5 It is a schematic diagram of the internal piping structure of the carbonization chamber of the present invention;

[0024] Figure 6 It is a schematic cross-sectional view of the internal pipeline of the carbonization chamber of the present invention;

[0025] Figure 7 It is a schematic diagram of air flow and gas flow of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the moving device and the annular support guide rail of the present invention.

[0027] Reference numerals

[0028] 1. Combustion chamber; 11. Connecting hole; 2. Carbonization chamber; 21. Carbonization cavity; 211. Reloading area; 212. Preheating area; 213. Rapid heating area; 214. Slow heating area; 215. Medium temperature area; 216. High temperature area; 217. Insulation area; 218. Cooling area; 22. Manifold; 221. Outer tube; 222. Inner tube; 223. Distribution plate; 224. Air duct; 23. Load-bearing bracket; 231. Load-bearing ring; 232. Load-bearing beam; 24. Air Conveying pipeline; 25. Gas conveying pipeline; 26. Heat dissipation pipe; 3. Rotating device; 31. Turntable; 311. Moving device; 32. Driving device; 321. Power device; 322. Bearing seat assembly; 323. Reversing gear box; 324. Input gear; 33. Output gear; 34. Upper retaining ring; 35. Lower retaining ring; 36. Vertical guide wheel; 4. Material box; 5. Fan; 51. Motor; 52. Transmission shaft; 53. Fan; 6. Annular support rail. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0030] The present invention provides a carbonization furnace, such as Figure 1 The structural diagram of the present invention, Figure 2 The carbonization furnace and the rotating device of the present invention are schematically shown in FIG. Figure 3The carbonization furnace of the present invention is connected to the rotating device as shown in the schematic diagram, the carbonization furnace includes a combustion chamber 1, a carbonization chamber 2 and a rotating device 3, the lower part of the carbonization chamber 2 is provided with an opening, wherein: the top of the combustion chamber 1 is provided with an isolation area and a communication area, the number of the communication areas is set to at least two, the communication area includes a connecting hole 11, and the communication areas at different positions include different numbers of connecting holes 11, the carbonization chamber 2 is arranged above the combustion chamber 1, the combustion chamber 1 is connected to the carbonization chamber 2 through the communication area, and the carbonization chamber 2 is provided with a carbonization Cavity 21, the cross-sectional shape of the carbonization chamber 2 is set to be circular, and a partition is set inside the carbonization chamber 2, all of the partitions divide the inner cavity of the carbonization chamber 2 into multiple carbonization chambers 21, and the carbonization chamber 2 is connected to the rotating device 3 in a transmission manner; the carbonization chamber 21 is isolated from the combustion chamber 1 by the isolation area so that the carbonization chamber 21 forms a changing area, and the carbonization chamber 21 can rotate relative to the combustion chamber 1 under the drive of the rotating device 3 and is connected to the combustion chamber 1 through the connecting areas with different connecting areas in turn, so that the carbonization chamber 21 forms a heating zone and a temperature zone in turn.

[0031] In the initial state, the carbonization chamber 21 is isolated from the combustion chamber 1 by the isolation zone, and the carbonization chamber 21 forms a changing zone. During operation, materials are added to the changing zone, the burner in the combustion chamber 1 is ignited, and the rotating device 3 is turned on. At this time, the rotating device 3 drives the carbonization chamber 2 to rotate, and the carbonization chamber 21 rotates. The carbonization chamber 21 is sequentially connected with the combustion chamber 1 through the connecting areas with different connecting areas, thereby forming a heating zone and a temperature zone in sequence. When the carbonization chamber 21 rotates to the initial position driven by the rotating device 3, the product is taken out, and new materials are added to enter the next production cycle. The present invention can drive the carbonization chamber 2 to rotate through the rotating device 3, so that the carbonization chamber 21 can circulate in sequence to form a changing zone, a heating zone and a temperature zone. After a production cycle is completed, the finished product is taken out, and new materials are added again, and the next production can be carried out, which can realize continuous production, not only with high production efficiency, but also with significant production effects.

[0032] As an optional implementation, Figure 4As shown in the schematic diagram of the structure of each area formed during the rotation of the carbonization chamber of the present invention, the number of carbonization chambers 21 is set to eight, the isolation zone includes a first isolation zone and a second isolation zone, the heating zone includes a preheating zone 212, a rapid heating zone 213 and a slow heating zone 214, and the temperature zone includes a medium temperature zone 215, a high temperature zone 216 and a heat preservation zone 217, wherein: the carbonization chamber 21 is isolated from the combustion chamber 1 by the first isolation zone to form a reloading zone 211; the carbonization chamber 21 is driven by the rotating device 3 to rotate so that the carbonization chamber 21 is isolated from the combustion chamber 1 by the second isolation zone to form a cooling zone 218; the connecting area of ​​the corresponding connecting zone of the preheating zone 212 is smaller than the connecting area of ​​the corresponding connecting zone of the rapid heating zone 213, and the number of connecting holes 11 contained in the corresponding connecting zone of the preheating zone 212 is smaller than the number of connecting holes 11 contained in the corresponding connecting zone of the rapid heating zone 213; the connecting area of ​​the corresponding connecting zone of the slow heating zone 214 is smaller than the connecting area of ​​the corresponding connecting zone of the rapid heating zone The hot zone 213 corresponds to the connected area of ​​the connected area, and the number of connected holes 11 included in the connected area corresponding to the slow heating zone 214 is less than the number of connected holes 11 included in the connected area corresponding to the rapid heating zone 213; the connected area of ​​the medium temperature zone 215 corresponding to the connected area is less than the connected area of ​​the high temperature zone 216, and the number of connected holes 11 included in the connected area corresponding to the medium temperature zone 215 is less than the number of connected holes 11 included in the connected area corresponding to the high temperature zone 216; the connected area of ​​the insulation zone 217 corresponding to the connected area is less than the connected area of ​​the high temperature zone 216, and the number of connected holes 11 included in the insulation zone 217 corresponding to the connected area is less than the number of connected holes 11 included in the connected area corresponding to the high temperature zone 216; the carbonization chamber 21 is driven by the rotating device 3 to circulate in sequence to form the changing zone 211, the preheating zone 212, the rapid heating zone 213, the slow heating zone 214, the medium temperature zone 215, the high temperature zone 216, the insulation zone 217 and the cooling zone 218.

[0033] When the biomass is carbonized, the heating rate before 275°C has little effect. The material is preheated in the preheating zone 212 and quickly heated to above 275°C in the rapid heating zone 213 to accelerate the thermal decomposition of the material. In this process, the heating intensity is controlled to reduce the reaction rate.

[0034] When the thermal decomposition temperature of the material reaches 330°C to 350°C, the self-generated heat will exceed the absorbed heat. At this time, the insulation material is heated by the slow heating zone 214;

[0035] After that, the material passes through the medium temperature zone 215, the high temperature zone 216 and the insulation zone 217 in sequence, is reheated by high temperature, and then the insulation is stopped to make the material completely and evenly carbonized;

[0036] Afterwards, the material is cooled in the cooling zone 218 and rotated to the initial position reloading zone 211. After the finished product is taken out, new material is replaced and the next cycle of carbonization can be carried out.

[0037] As an optional implementation, Figure 5 As shown in the schematic diagram of the internal piping structure of the carbonization chamber of the present invention, a manifold 22, an air delivery pipeline 24 and a gas delivery pipeline 25 are arranged in the carbonization chamber 2, wherein: the air delivery pipeline 24 and the gas delivery pipeline 25 are both connected and arranged on the manifold 22; the manifold 22 is connected to the combustion chamber 1, and the air delivery pipeline 24, the gas delivery pipeline 25 and the manifold 22 cooperate with each other to transport air and combustible gas into the combustion chamber 1.

[0038] As an optional implementation, Figure 5 As shown, a load-bearing bracket 23 is provided at the bottom of the carbonization chamber, and the manifold 22 is vertically arranged in the middle position of the load-bearing bracket 23. The load-bearing bracket 23 includes a load-bearing ring 231 and a load-bearing beam 232, wherein: the load-bearing beam 232 is arranged on the radius of the load-bearing ring 231, the number of the load-bearing beams 232 is set to at least three, and all the load-bearing beams 232 are evenly arranged circumferentially. Preferably, the number of the load-bearing beams 232 is set to eight, and the eight load-bearing beams 232 are evenly arranged inside the load-bearing ring 231 in the circumferential direction; the load-bearing beam 232 is connected with the load-bearing ring 231 in a socket connection, which can effectively eliminate thermal stress.

[0039] An upper bracket is arranged at the top of the carbonization chamber, and the top of the manifold 22 passes through the upper bracket, and a blind plate is arranged on the top of the manifold 22; the bottom of the manifold 22 passes through the load-bearing bracket 23, and the carbonization chamber 2 also includes an insulating outer wall, and the upper bracket, the manifold 22 and the load-bearing bracket 23 are all arranged in the insulating outer wall, and a warehouse door is arranged on the insulating outer wall, and the warehouse door corresponds to the changing area 211.

[0040] As an optional implementation, Figure 6 A schematic cross-sectional view of the internal piping of the carbonization chamber of the present invention, wherein the manifold 22 comprises an inner tube 222 and an outer tube 221 sleeved on the outer side of the inner tube 222, a heat dissipation pipe 26 is axially arranged inside the load-bearing beam 232, and the heat dissipation pipe 26 passes through the load-bearing ring 231, wherein: the outlet end of the air delivery pipeline 24 passes through the outer tube 221 and is connected with the inner tube 222, the inlet end of the air delivery pipeline 24 is inserted into the load-bearing beam 232 and is connected with the heat dissipation pipe 26, the insulating outer wall is provided with an opening at a position corresponding to the cooling zone 218, the heat dissipation pipe 26 rotated to the position of the cooling zone 218 is connected with the outside, and a valve is provided on the air delivery pipeline 24.

[0041] As an optional implementation, Figure 6As shown, the carbonization furnace also includes a fan 5, which includes a motor 51, a transmission shaft 52 and a fan 53, wherein: the input end of the transmission shaft 52 is connected to the motor 51; the output end of the transmission shaft 52 is inserted into the inner tube 222 along the axial direction of the manifold 22 and is connected to the fan 53. The fan 53 is located below the outlet end of the air delivery pipeline 24. When the fan 53 rotates, negative pressure can be formed, so that air enters the inner tube 222 from the heat dissipation pipe 26.

[0042] like Figure 6 As shown, a distribution plate 223 is horizontally arranged on the middle section of the inner tube 222, and an air duct 224 is vertically arranged on the distribution plate 223. The length of the section of the air duct 224 located above the distribution plate 223 is smaller than the length of the section located below. An air circuit one-way valve is arranged on the air duct 224 so that the air can only flow from the upper end to the lower end of the air duct 224.

[0043] As an optional implementation, Figure 2 and Figure 5 As shown, the gas delivery pipeline 25 includes a T-shaped gas pipe, the number of which is set to eight, all of which are vertically arranged on the manifold 22, the T-shaped gas pipe including an outlet pipe and two inlet pipes, one end of the outlet pipe is vertically connected to the manifold 22, the other end of the outlet pipe is vertically connected to the two inlet pipes, the two inlet pipes are arranged on the same straight line, and valves are arranged on the inlet pipe and the outlet pipe; a material box 4 is arranged in the carbonization chamber 21, a bracket is arranged on the load-bearing beam 232, and the material box 4 is arranged on the bracket, wherein: the outlet end of the T-shaped gas pipe is connected to the outer pipe 221; the two inlet ends of the T-shaped gas pipe are respectively arranged in two adjacent carbonization chambers 21 and connected to the corresponding material boxes 4.

[0044] like Figure 7 As shown in the schematic diagram of air flow and gas flow of the present invention, air enters the heat dissipation pipe 26, passes through the air delivery pipeline 24, the upper section of the inner tube 222, the air duct 224 and the lower section of the inner tube 222 in sequence and enters the interior of the combustion chamber 1.

[0045] The combustible gas generated during the carbonization process of the material inside the material box 4 enters the combustion chamber 1 through the T-shaped gas pipeline and the outer pipe 221 in sequence.

[0046] Optionally, a hot gas nozzle is provided at the bottom of the manifold 22 , and the hot gas nozzle is provided with a mixing tube, an ignition tube and a flame tube, and both the inner tube 222 and the outer tube 221 are connected to the mixing tube.

[0047] During the carbonization of the material, the tar-like substances are condensed and adsorbed in the material box 4, heat is exchanged with the low-temperature material, and then high-temperature thermal decomposition is performed again, thereby realizing the online utilization of the tar and solving the problem of tar clogging the pipeline.

[0048] Tar substances are condensed in the material box 4, and then heated to carbonize and decompose. The principle is the same as the delayed coking process in the petrochemical industry. When the heating temperature of the conventional carbonization process is 500 degrees Celsius, the tar yield of broadleaf trees is about 21.3%, and the tar yield of coniferous trees is about 22.8%. When the delayed coking process is used, the coke yield accounts for 15-24% of the reactants. Therefore, when the two yields are multiplied and the loss is ignored, the tar yield of broadleaf trees can be increased by 3% to 4.87%, and the tar carbon yield of coniferous trees can be increased by 3.375% to 5.4%. At the same time, other non-tar liquid phase components will also be thermally decomposed to precipitate carbonaceous and gas phase components. It can be seen that the operation method of delaying the biomass liquid phase components to stay in the working area for a long time is significantly better than the traditional one-time thermal decomposition. At the same time, the use of zoned differentiated heating can more effectively utilize the heating space, which is more consistent with the carbonization process.

[0049] As an optional implementation, Figure 2 and Figure 3 As shown, the rotating device 3 includes a turntable 31 and a driving device 32, wherein: the carbonization chamber 2 is arranged on the annular support guide rail 6, and a moving device 311 is arranged on the lower side of the carbonization chamber 2, and the moving device 311 is arranged in the annular support guide rail 6 and can move along the annular support guide rail 6; the turntable 31 is installed on the carbonization chamber 2 and rotates synchronously with the carbonization chamber 2, and an opening is arranged in the middle of the turntable 31 so that the combustion chamber 1 can be connected with the carbonization chamber 2; the outer sleeve of the turntable 31 is provided with an output gear 33, and the output gear 33 is connected to the driving device 32 by transmission.

[0050] like Figure 8 As shown in the schematic diagram of the moving device and the annular support guide rail structure of the present invention, the turntable 31 is installed on the bottom of the carbonization chamber 2, the moving device 311 is configured as a roller, the number of the rollers is configured as multiple, and all the rollers are circumferentially arranged at the bottom of the turntable 31.

[0051] As an optional implementation, Figure 3 and Figure 8 As shown, an upper retaining ring 34 is provided on the upper side of the output gear 33, and a lower retaining ring 35 is provided on the lower side of the output gear 33. The upper retaining ring 34 and the lower retaining ring 35 are configured as gear retaining rings for positioning the axial position of the output gear 33; a vertical guide wheel 36 is provided against the outer edge of the lower retaining ring 35, and a plurality of vertical guide wheels 36 are provided, and all vertical guide wheels 36 are circumferentially distributed on the outer edge of the lower retaining ring 35.

[0052] As an optional implementation, Figure 2As shown, the driving device 32 includes a power device 321, a driving shaft, a bearing seat assembly 322 and a transmission device, wherein: the output end of the power device 321 is connected to the input end of the driving shaft by transmission; the output end of the driving shaft passes through the bearing seat assembly 322 and is connected to the output gear 33 by transmission through the transmission device; the outer side of the bearing seat assembly 322 is provided with a horizontal stop wheel and a vertical stop wheel.

[0053] The bearing seat assembly 322 is disposed in a rectangular fixed base. Preferably, the bearing seat assembly 322 can be displaced up and down in the base, and the bottom of the base is fixedly connected to the embedded part.

[0054] Optionally, the transmission device includes an input gear 324, which is arranged on the output end of the drive shaft, and the input gear 324 is meshed with the output gear 33, and the input gear 324 and the output gear 33 are arranged as bevel gears.

[0055] Optionally, the transmission device includes an input gear 324 and a reversing gear box 323, the input gear 324 and the output gear 33 are meshed with each other, the input gear 324 and the output gear 33 are configured as spur gears, the output end of the drive shaft is transmission-connected to the input end of the reversing gear box 323, and the input gear 324 is transmission-configured on the output end of the reversing gear box 323.

[0056] Preferably, the transmission device comprises an input gear 324 and a transmission chain, the input gear 324 is arranged on the output end of the drive shaft, and the input gear 324, the transmission chain and the output gear 33 form a chain transmission mechanism.

[0057] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A carbonization furnace, characterized in that: It includes a combustion chamber, a carbonization chamber and a rotating device, wherein: The top of the combustion chamber is provided with an isolation area and a communication area, the number of the communication areas is set to at least two, the carbonization chamber is arranged above the combustion chamber, the combustion chamber is connected with the carbonization chamber through the communication area, a carbonization cavity is arranged inside the carbonization chamber, and the carbonization chamber is transmission-connected with the rotating device; The carbonization chamber is isolated from the combustion chamber by the isolation zone so that the carbonization chamber forms a replacement zone. The carbonization chamber can rotate relative to the combustion chamber under the drive of the rotating device and sequentially communicate with the combustion chamber through the connecting zones with different connecting areas, so that the carbonization chamber sequentially forms a heating zone and a temperature zone; The isolation zone includes a first isolation zone and a second isolation zone, the heating zone includes a preheating zone, a rapid heating zone and a slow heating zone, and the temperature zone includes a medium temperature zone, a high temperature zone and a heat preservation zone, wherein: The carbonization chamber is isolated from the combustion chamber by the first isolation zone to form the reloading zone; The carbonization chamber rotates under the driving of the rotating device, so that the carbonization chamber is isolated from the combustion chamber through the second isolation zone to form a cooling zone; The connection area of ​​the preheating zone corresponding to the connection area is smaller than the connection area of ​​the rapid heating zone corresponding to the connection area, and the connection area of ​​the slow heating zone corresponding to the connection area is smaller than the connection area of ​​the rapid heating zone corresponding to the connection area; The connection area of ​​the medium temperature zone corresponding to the connection area is smaller than the connection area of ​​the high temperature zone corresponding to the connection area, and the connection area of ​​the insulation zone corresponding to the connection area is smaller than the connection area of ​​the high temperature zone corresponding to the connection area; The carbonization chamber is driven by the rotating device to circulate in sequence to form the changing zone, the preheating zone, the rapid heating zone, the slow heating zone, the medium temperature zone, the high temperature zone, the heat preservation zone and the cooling zone.

2. The carbonization furnace according to claim 1, characterized in that: The carbonization chamber is provided with a manifold, an air delivery pipeline and a gas delivery pipeline, wherein: The air delivery pipeline and the gas delivery pipeline are both connected and arranged on the manifold; The manifold is communicated with the combustion chamber.

3. The carbonization furnace according to claim 2, characterized in that: A load-bearing support is provided at the bottom of the carbonization chamber, and the manifold is vertically arranged in the middle of the load-bearing support. The load-bearing support includes a load-bearing ring and a load-bearing beam, wherein: The load-bearing beam is arranged on the radius of the load-bearing ring, the number of the load-bearing beams is at least three, and all the load-bearing beams are evenly arranged in the circumferential direction; The load-bearing beam is connected to the load-bearing ring by socket connection.

4. The carbonization furnace according to claim 3, characterized in that: The manifold comprises an inner tube and an outer tube sleeved outside the inner tube, a heat dissipation pipe is axially arranged inside the load-bearing beam, and the heat dissipation pipe passes through the load-bearing ring, wherein: The outlet end of the air delivery pipeline passes through the outer tube and is connected to the inner tube, and the inlet end of the air delivery pipeline is inserted into the load-bearing beam and is connected to the heat dissipation pipe.

5. The carbonization furnace according to claim 4, characterized in that: The carbonization furnace also includes a fan, which includes a motor, a transmission shaft and a fan, wherein: The input end of the transmission shaft is transmission-connected to the motor; The output end of the transmission shaft is inserted into the inner tube along the axial direction of the manifold and is drivingly connected to the fan, and the fan is located below the outlet end of the air delivery pipeline.

6. The carbonization furnace according to claim 4, characterized in that: The gas delivery pipeline includes a T-shaped gas pipe, which is vertically arranged on the manifold, and a material box is arranged in the carbonization chamber, wherein: The outlet end of the T-shaped gas pipe is connected to the outer pipe; The two inlet ends of the T-shaped gas pipe are respectively arranged in two adjacent carbonization chambers and connected to the corresponding material boxes.

7. The carbonization furnace according to claim 1, characterized in that: The rotating device comprises a rotating disk and a driving device, wherein: The carbonization chamber is arranged on an annular support rail, a moving device is arranged on the lower side of the carbonization chamber, and the moving device is arranged in the annular support rail and can move along the annular support rail; The turntable is mounted on the carbonization chamber and rotates synchronously with the carbonization chamber. An output gear is sleeved on the outside of the turntable, and the output gear is transmission-connected with the driving device.

8. The carbonization furnace according to claim 7, characterized in that: An upper retaining ring is provided on the upper side of the output gear, and a lower retaining ring is provided on the lower side of the output gear; A vertical guide wheel is disposed against the outer edge of the lower retaining ring.

9. The carbonization furnace according to claim 7, characterized in that: The driving device comprises a power device, a driving shaft, a bearing seat assembly and a transmission device, wherein: The output end of the power device is drivingly connected to the input end of the drive shaft; The output end of the driving shaft passes through the bearing seat assembly and is connected to the output gear through the transmission device; A horizontal stop wheel and a vertical stop wheel are disposed on the outer side of the bearing seat assembly.

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