A carbonization furnace for preparing activated carbon and straw biomass fuel

Abstract

The present invention provides a carbonization furnace for preparing activated carbon and straw biomass fuel, which relates to the technical field of carbonization furnaces. The carbonization furnace for preparing activated carbon and straw biomass fuel includes a fuel base, a combustion chamber fixedly connected to the upper end of the fuel base, a sealing cover slidably connected to the surface of the combustion chamber, a carbonization shell fixedly connected to the upper end of the combustion chamber, a lifting motor fixedly connected to the outer surface of the carbonization shell, a synchronous gear set fixedly connected to the output end of the lifting motor, a lifting shaft connected to the surface of the synchronous gear set, and a lifting inner shell slidably connected to the inner side of the carbonization shell. In this carbonization furnace for preparing activated carbon and straw biomass fuel, a secondary ignition mechanism is arranged at the smoke exhaust position, so that the discharged materials of the carbonization furnace can pass through the ignition test, thereby enabling the discharged materials to burn fully and reducing the harmful gases discharged, achieving the effect of full combustion and reducing the discharge of harmful gases, and solving the problems of excessive flue gas discharged from the carbonization furnace and a large amount of harmful gases existing inside.

Description

Technical Field

[0001] The present invention relates to the technical field of carbonization furnaces, and specifically to a carbonization furnace for preparing activated carbon and straw biomass fuel. Background Art

[0002] With the continuous progress of science and technology and the rapid development of rural economy, the total amount and variety of various agricultural and forestry residues, including crop straws, have increased significantly. The efficient treatment and resource utilization of agricultural and forestry residues have become a difficult problem restricting the sustainable development of agriculture. Biomass carbonization technology is a newly emerging technology for resource utilization of agricultural and forestry residues in recent years. It can carbonize agricultural and forestry residues and exist in the form of stable solid substances. The prepared biomass carbon has characteristics such as a large specific surface area, developed pore structure, high stability, and strong adsorption capacity.

[0003] Through retrieval, Chinese Patent Publication No. CN115197729A discloses a biomass carbonization furnace. The biomass carbonization furnace includes a furnace shell, a steam component, a catalyst component, and an auxiliary component. Among them, the furnace shell is vertically arranged, and a material bin is formed inside the furnace shell. The steam component is arranged on the furnace shell to heat the materials in the material bin. The catalyst component is arranged on the furnace shell and is vertically spaced from the steam component to release the catalyst into the material bin. The auxiliary component is movably inserted into the material bin. Thus, by setting the auxiliary component, a separation space for biomass carbon can be reserved, which is beneficial to the carbon extraction operation of biomass carbon, promotes the falling of biomass carbon, and improves the carbon extraction efficiency of the carbonization furnace.

[0004] Regarding the above related technologies, the following defects are considered to exist:

[0005] 1. Traditional carbonization furnaces will generate a large amount of flue gas and heat during combustion. At the same time, a large amount of unburned gas and harmful gases will appear in a closed space. Therefore, it is necessary to treat them in time to reduce the emission of these gases.

[0006] 2. During the carbonization process of the carbonization furnace, it is necessary to replenish fuel in time to keep the temperature inside the carbonization furnace constant. Traditional carbonization furnaces have the problems of continuous fuel filling and inability to fully utilize fuel.

[0007] 3. Traditional carbonization furnaces will have uneven heating, which will lead to over-carbonization of soft materials such as straw during mixed material carbonization. Summary of the Invention

[0008] In view of the deficiencies of the prior art, the present invention provides a carbonization furnace for preparing activated carbon and straw biomass fuel, which solves the problems raised in the above background art.

[0009] To achieve the above object, the present invention is realized through the following technical solutions: A carbonization furnace for preparing activated carbon and straw biomass fuel, including a fuel base, a combustion chamber is fixedly connected to the upper end of the fuel base, a sealing cover is slidably connected to the surface of the combustion chamber, a carbonization shell is fixedly connected to the upper end of the combustion chamber, a lifting motor is fixedly connected to the outer surface of the carbonization shell, a synchronous gear set is fixedly connected to the output end of the lifting motor, a lifting shaft is connected to the surface of the synchronous gear set, and a lifting inner shell is slidably connected to the inner side of the carbonization shell, and the lifting shaft contacts the lifting inner shell;

[0010] A carbonization cylinder is rotatably connected to the inner side of the lifting inner shell, the carbonization cylinder is communicated with a gas collection component, one end of the gas collection component far from the carbonization cylinder is communicated with a extraction shell, a extraction mechanism is connected to the outer side of the extraction shell, a return air pipe is connected to the upper end of the extraction shell, a gas release pipe is communicated with the lower end of the return air pipe, and the extraction shell is slidably connected to the carbonization shell;

[0011] A cover plate is arranged at the upper end of the carbonization shell, a long strip through hole is arranged at the top end of the cover plate, a tempering chamber is fixedly connected to the upper end of the carbonization shell, the tempering chamber covers the outside of the long strip through hole of the carbonization shell, a connecting pipe is slidably connected to the end face of the tempering chamber, a lifting extension shell is clamped to the end face of the connecting pipe, a guiding pipe is sleeved outside the lifting extension shell, a tempering core pipe is communicated with the side of the guiding pipe close to the carbonization cylinder, the tempering core pipe penetrates through the carbonization cylinder, a secondary ignition mechanism is arranged at the end of the tempering core pipe close to the guiding pipe, and a guiding fan is fixedly connected to the outside of the guiding pipe;

[0012] A turning mechanism is arranged on the outer side of the extraction shell, a turning gear ring is meshed on the surface of the turning mechanism, and the turning gear ring is connected to the carbonization cylinder.

[0013] Preferably, the carbonization cylinder includes an outer enclosure, side end covers and a vacant chamber. The outer enclosure is divided into an upper enclosure and a lower enclosure. The end faces of the upper enclosure and the lower enclosure are both arc-shaped and jointly form a cylindrical shape. One end of the upper enclosure is hinged to the lower enclosure and the other end is clamped. The side end covers are fixedly connected to both ends of the lower enclosure. The tempering core pipe penetrates through the center of the side end cover. A pipe is arranged at the center of the end face of the side end cover and is outside the tempering core pipe. The vacant chamber is composed of four empty shells with different arc lengths. The overall shape of the vacant chamber is cylindrical. The vacant chamber is arranged inside the outer enclosure. The four sections of the vacant chamber are divided into upper, lower, left and right parts. The left, right and lower vacant chambers are all connected to the inner wall of the lower enclosure, and the upper vacant chamber is connected to the inner side of the upper enclosure. A through groove penetrating the inner wall is arranged inside the cavity of the vacant chamber.

[0014] Preferably, one end of the gas collection component is a gas collection combined pipe and the other end is a docking ring. One end of the gas collection combined pipe is respectively connected to the four parts of the vacant chamber, and the other end is communicated with the docking ring. The docking ring is sleeved outside the pipe arranged at the center of the end face of the side end cover, and the docking ring is connected to the extraction shell.

[0015] Preferably, the extraction mechanism includes an extraction motor, an extraction gear, an extraction disc, and extraction fan blades. The extraction motor is fixedly connected to the outside of the extraction shell. The extraction gear is fixedly connected to the output end of the extraction motor. The extraction disc is rotatably connected inside the extraction shell. Tooth teeth are provided on the outer peripheral edge of the extraction disc. The extraction disc meshes with the extraction gear. The extraction fan blades are arranged in an array on the end face of the extraction disc. After the extraction fan blades rotate, they have the effect of pumping air.

[0016] Preferably, the air release pipeline is composed of a circular pipe and a jet port. Both ends of the circular pipe are communicated with the return air pipeline. The jet port is in a horn shape. There are two groups of air release pipelines, which are respectively located on both sides of the carbonization cylinder.

[0017] Preferably, the synchronous tooth group includes a synchronous tooth shaft and a synchronous chain. The center of the synchronous tooth shaft is a cylindrical shaft. Straight gears and large sprockets are provided on the surface of the cylindrical shaft. There are two groups of synchronous tooth shafts. The two straight gears mesh. A synchronous chain is sleeved outside the large sprocket of the synchronous tooth shaft. The synchronous chain is sleeved outside the lifting shaft. A small sprocket matching the synchronous chain is provided on the end face of the circular shaft. A preset cam is provided on the part of the circular shaft of the lifting shaft located in the combustion chamber. The cam can contact the lifting inner shell. The cams of the two lifting shafts arranged oppositely are symmetrically arranged with the midline between the two as the axis.

[0018] Preferably, the guiding pipe is in the shape of a hollow pipe, and inclined sheets for preventing air flow backflow are provided inside the guiding pipe.

[0019] Preferably, the lifting inner shell includes a support wall and a support frame. The support wall is rotatably connected to a pipe provided at the center of the end face of the side end cover. The support frame is fixedly connected to the lower end of the support wall. The support frame can contact the lifting shaft.

[0020] Preferably, the flipping mechanism includes a flipping motor and a flipping gear. The flipping motor is connected to the outside of the extraction shell through a fixing frame. The flipping gear is fixedly connected to the output end of the flipping motor and meshes with the flipping tooth ring.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. For the carbonization furnace for preparing activated carbon and straw biomass fuel, by arranging a secondary ignition mechanism at the smoke exhaust position, the discharged materials of the carbonization furnace can pass through the ignition test, so that the discharged materials can be fully burned to reduce the discharged harmful gases, achieving the effect of full combustion and reducing the discharge of harmful gases, and solving the problems of excessive smoke discharged from the carbonization furnace and a large amount of harmful gases inside.

[0023] 2. The carbonization furnace for preparing activated carbon and straw biomass fuel has an empty storage chamber inside the carbonization cylinder, enabling the internal pressure of the carbonization cylinder to be discharged in a timely manner during the high-temperature carbonization process, preventing the straw from being pressed into powder. The empty storage chamber and the gas collection component can collect the combustible gas generated after the material is heated, and the combustible gas is put into the carbonization shell through the return air pipe and the air release pipe for combustion, thereby reducing the fuel input, achieving the effect of saving the fuel use of the carbonization furnace, and solving the problems of large fuel consumption of the carbonization furnace and easy energy waste.

[0024] 3. The carbonization furnace for preparing activated carbon and straw biomass fuel adjusts the height of the carbonization cylinder inside the carbonization shell, enabling the heat inside the carbonization cylinder to fully act on the surface of the carbonization cylinder. The remaining heat is collected through the tempering chamber, and by setting a tempering core pipe, the tempering core pipe can carry the remaining heat in the flue gas to heat and carbonize the center of the material, enabling both the inside and outside of the material to be subjected to high-temperature carbonization during the carbonization process, preventing the problem of over-carbonization of the straw during the carbonization process due to uneven heating. Moreover, by setting the carbonization shell and the carbonization cylinder that can be opened, it is more convenient to take out the carbon and put in the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the carbonization shell of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the synchronous gear shaft of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the lifting shaft of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the air release pipe of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the guide pipe of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the flipping gear ring of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the extraction fan blade of the present invention;

[0034] Figure 9 Schematic diagram of the tempering core tube structure of the present invention;

[0035] Figure 10 Schematic diagram of the empty storage bin structure of the present invention.

[0036] Wherein: 1, fuel base; 2, combustion chamber; 3, sealing cover; 4, carbonization shell; 5, lifting motor; 6, synchronous gear set; 62, synchronous gear shaft; 63, synchronous chain; 7, lifting shaft; 8, lifting inner shell; 81, support wall; 82, support frame; 9, carbonization cylinder; 91, outer enclosure; 911, upper enclosure; 912, lower enclosure; 92, side end cover; 93, empty storage bin; 931, through groove; 10, gas collection assembly; 101, gas collection combined pipe; 102, docking ring; 11, extraction shell; 12, extraction mechanism; 121, extraction motor; 122, extraction gear; 123, extraction disc; 124, extraction fan blade; 13, return air duct; 14, air release duct; 141, round pipe; 142, jet orifice; 15, tempering chamber; 16, connecting pipe; 17, lifting extension shell; 18, guide pipe; 19, tempering core tube; 20, secondary ignition mechanism; 21, guide fan; 22, flipping mechanism; 221, flipping motor; 222, flipping gear; 23, flipping gear ring. Detailed implementation manners

[0037] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way restrictive of the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0040] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn in accordance with actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the description. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary statements, these orientation terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention: the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0042] For ease of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" etc. can be used here to describe the spatial positional relationships of one device or feature to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0043] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without otherwise stating, the above words have no special meanings, and thus should not be construed as limiting the protection scope of the present invention.

[0044] As Figures 1 to 10As shown in the figure, an embodiment of the present invention discloses a carbonization furnace for preparing activated carbon and straw biomass fuel, which includes a fuel base 1. A combustion chamber 2 is fixedly connected to the upper end of the fuel base 1. A sealing cover 3 is slidably connected to the surface of the combustion chamber 2. A carbonization shell 4 is fixedly connected to the upper end of the combustion chamber 2. A lifting motor 5 is fixedly connected to the outer surface of the carbonization shell 4. The output end of the lifting motor 5 is fixedly connected to a synchronous gear set 6, specifically a synchronous gear shaft 62. A lifting shaft 7 is connected to the surface of the synchronous gear set 6. An inner lifting shell 8 is slidably connected to the inside of the carbonization shell 4. The synchronous gear set 6 includes a synchronous gear shaft 62 and a synchronous chain 63. The center of the synchronous gear shaft 62 is a cylindrical shaft, and a straight gear and a large sprocket are arranged on the surface of the cylindrical shaft. There are two sets of synchronous gear shafts 62, and the two straight gears are meshed. A synchronous chain 63 is sleeved outside the large sprocket of the synchronous gear shaft 62. The synchronous chain 63 is sleeved outside the lifting shaft 7. The center of the lifting shaft 7 is a circular shaft, and a small sprocket matching the synchronous chain 63 is arranged at the end face of the circular shaft. A preset cam is arranged on the part of the circular shaft of the lifting shaft 7 located in the combustion chamber 2. The cam can contact the inner lifting shell 8. The cams of the two relatively arranged lifting shafts 7 are symmetrically arranged with the midline between the two as the axis. The synchronous gear set 6 can drive the two lifting shafts 7 to rotate simultaneously, so that the lifting shaft 7 can push the inner lifting shell 8 to move up and down inside the carbonization shell 4, thereby adjusting the height of the inner lifting shell 8.

[0045] In this embodiment, a plurality of grooves are arranged on the surface of the fuel base 1, which can enable air to be supplemented into the combustion chamber 2 in time.

[0046] The lifting shaft 7 contacts the inner lifting shell 8. A carbonization cylinder 9 is rotatably connected to the inside of the inner lifting shell 8. Gas collection components 10 are communicated with both ends of the carbonization cylinder 9. The inner lifting shell 8 includes a support wall 81 and a support frame 82. The support wall 81 is rotatably connected to a pipeline arranged at the center of the end face of the side end cover 92. The support frame 82 is fixedly connected to the lower end of the support wall 81. The support frame 82 can contact the lifting shaft 7. The inner lifting shell 8 can drive the carbonization cylinder 9 to move up and down inside the carbonization shell 4, making the position of the carbonization cylinder 9 more convenient to adjust. The composite structure of "inner lifting shell + rotating carbonization cylinder" can adapt to the carbonization requirements of raw materials with different bulk densities, and at the same time ensure the uniformity of the thermal field.

[0047] The components provided by the present invention adopt a three-stage thermal cycle system design, which is composed of a basic combustion layer, a dynamic carbonization layer and a heat energy recovery layer. The fuel base and the combustion chamber form the basic combustion layer, the carbonization shell and the lifting mechanism form the dynamic carbonization layer, and the tempering chamber and the guiding system form the heat energy recovery layer. The heat conduction path of the present invention is clear and controllable, improving the energy utilization efficiency. And it can facilitate the adjustment of the working parameters of each layer according to the characteristics of different straw raw materials.

[0048] One end of the gas collecting assembly 10 away from the carbonization cylinder 9 is connected to an extraction shell 11. One end of the gas collecting assembly 10 is a gas collecting combined pipe 101, and the other end is a docking ring 102. One end of the gas collecting combined pipe 101 is respectively connected to four parts of the empty storage bins 93, and the other end is communicated with the docking ring 102. The docking ring 102 is sleeved outside the pipe arranged at the center of the end face of the side end cover 92, and the docking ring 102 is connected to the extraction shell 11. The gas collecting assembly 10 can communicate with the empty storage bins 93, so that the gas inside each empty storage bin 93 can be concentrated and discharged into the inner side of the extraction shell 11.

[0049] An extraction mechanism 12 is connected to the outside of the extraction shell 11. The extraction mechanism 12 includes an extraction motor 121, an extraction gear 122, an extraction disc 123 and extraction fan blades 124. The extraction motor 121 is fixedly connected to the outside of the extraction shell 11. The extraction gear 122 is fixedly connected to the output end of the extraction motor 121. The extraction disc 123 is rotatably connected to the inside of the extraction shell 11. Tooth teeth are arranged on the outer peripheral surface edge of the extraction disc 123. The extraction disc 123 meshes with the extraction gear 122. The extraction fan blades 124 are arranged in an array on the end face of the extraction disc 123. After the extraction fan blades 124 rotate, they have the function of pumping air. The extraction mechanism 12 can accelerate the flow of the gas inside the extraction shell 11, so that the gas inside the empty storage bins 93 can be discharged in time, and an oxygen-deficient environment can quickly appear inside the carbonization cylinder 9, preventing the materials inside the carbonization cylinder 9 from burning.

[0050] A return air pipe 13 is connected to the upper end of the extraction shell 11. The return air pipe 13 is located above the lifting inner shell 8. The lower end of the return air pipe 13 is communicated with a deflation pipe 14. The extraction shell 11 is slidably connected to the carbonization shell 4 to cooperate with the lifting of the lifting inner shell 8. The upper end of the carbonization shell 4 is provided with a cover plate that can be opened and closed. A hinge shaft is arranged at the edge of the cover plate, and a long strip through hole is arranged at the top end of the cover plate. A tempering bin 15 is fixedly connected to the upper end of the carbonization shell 4. The deflation pipe 14 is composed of a round pipe 141 and a jet port 142. Both ends of the round pipe 141 are communicated with the return air pipe 13. The jet port 142 is in a horn shape. There are two groups of deflation pipes 14 respectively located on both sides of the carbonization cylinder 9. The deflation pipe 14 can timely release the combustible gases such as carbon monoxide generated by the high temperature inside the carbonization cylinder 9 into the inside of the carbonization shell 4, so that the gas can be timely generated and supplemented into the carbonization shell 4 to contact the flame of the combustion chamber 2 and burn, reducing the fuel input inside the combustion chamber 2. During the carbon making process, the materials are prepared in a sealed and oxygen-deficient environment. Therefore, a large amount of carbon monoxide will be generated during this process. Through the secondary ignition mechanism set in the present invention, the generated carbon monoxide is ignited. Through the tempering mechanism set, the carbon monoxide burns, and the generated heat is reused again, thereby achieving the effect of heat recovery and reuse.

[0051] The tempering chamber 15 covers the outside of the long through hole of the carbonization shell 4. A connecting pipe 16 is slidably connected to the end face of the tempering chamber 15. A lifting and extending shell 17 is clamped to the end face of the connecting pipe 16. A guiding pipe 18 is sleeved outside the lifting and extending shell 17. A tempering core pipe 19 is communicated with one side of the guiding pipe 18 close to the carbonization cylinder 9. The tempering core pipe 19 penetrates through the carbonization cylinder 9. A secondary ignition mechanism 20 is arranged at one end of the tempering core pipe 19 close to the guiding pipe 18. The secondary ignition mechanism 20 ignites the air flow inside the tempering core pipe 19 through electric sparking. The hot air flow generated after the carbon monoxide generated during the carbonization process is ignited can be reused, and the emission of toxic gases is avoided. The carbonization cylinder 9 includes an outer enclosure 91, side end covers 92 and a vacant chamber 93. The outer enclosure 91 is divided into an upper enclosure 911 and a lower enclosure 912. The end faces of the upper enclosure 911 and the lower enclosure 912 are both arc-shaped and jointly form a cylindrical shape. One end of the upper enclosure 911 is hinged to the lower enclosure 912 and the other end is clamped. The side end covers 92 are fixedly connected to both ends of the lower enclosure 912. The tempering core pipe 19 penetrates through the center of the side end cover 92. A pipeline is arranged at the center of the end face of the side end cover 92. The pipeline is outside the tempering core pipe 19. The vacant chamber 93 is composed of four empty shells with different arc lengths. The overall shape of the vacant chamber 93 is cylindrical. The vacant chamber 93 is arranged inside the outer enclosure 91. The four sections of the vacant chamber 93 are divided into upper, lower, left and right parts. The left, right and lower vacant chambers 93 are all connected to the inner wall of the lower enclosure 912. The upper vacant chamber 93 is connected to the inside of the upper enclosure 911. A through groove 931 penetrating the inner wall is arranged inside the cavity of the vacant chamber 93. The carbonization cylinder 9 can use the upper enclosure 911 and the lower enclosure 912 to be closed while being convenient to open in time to take out or put in materials. By arranging the vacant chamber 93 inside the outer enclosure 91, the high temperature of the flame will not directly contact the carbonization material, preventing the straw from being scorched. By arranging the vacant chamber 93 and arranging the through groove 931 inside the vacant chamber 93, the gas generated by the high temperature of the carbonization material inside the carbonization cylinder 9 can enter the inside of the vacant chamber 93 in time and be discharged. In addition, the four unequal-arc cavities of the vacant chamber of the present invention can also form a turbulence enhancement effect, and the heat transfer coefficient is improved.

[0052] A guiding fan 21 is fixedly connected to the outside of the guiding pipe 18. The guiding pipe 18 is in the shape of a hollow pipe. Inclined sheets for preventing the backflow of air flow are arranged inside the guiding pipe 18. The guiding pipe 18 can use the inclined sheets inside to prevent the air flow generated by the guiding fan 21 from flowing back.

[0053] A turning mechanism 22 is provided on the outer side of the extraction shell 11. A turning gear ring 23 is engaged on the surface of the turning mechanism 22. The turning mechanism 22 includes a turning motor 221 and a turning gear 222. The turning motor 221 is connected to the outer side of the extraction shell 11 through a fixing frame. The turning gear 222 is fixedly connected to the output end of the turning motor 221 and meshes with the turning gear ring 23. The turning mechanism 22 can drive the carbonization cylinder 9 to rotate, so that the carbonization cylinder 9 can rotate to make the heating more uniform. The turning gear ring 23 is connected to the carbonization cylinder 9.

[0054] During use, first open the cover plate provided at the upper end of the carbonization shell 4, then open the upper enclosure 911, place the carbon block and straw biomass inside the lower enclosure 912. At the same time, insert the tempering core pipe 19 into the side end cover 92 and place it in the center of the material. By closing the upper enclosure 911, the material is enclosed inside the carbonization cylinder 9. Close the cover plate of the carbonization shell 4, pull out the connecting pipe 16 from the inside of the tempering chamber 15 and snap it onto the lifting extension shell 17. By starting the lifting motor 5 to drive the synchronous tooth group 6, the lifting shaft 7 rotates to push the lifting inner shell 8 to lift and change the height, so that the height between the carbonization cylinder 9 and the carbonization shell 4 can be controlled, and the heat during the combustion of the device can be wrapped around the carbonization cylinder 9;

[0055] By putting the fuel into the combustion chamber 2 and pulling down the sealing cover 3, the flame generated by the fuel can burn upward. The grooves provided on the surface of the fuel base 1 can allow air to be supplemented into the combustion chamber 2 in time. The heat surrounds the surface of the carbonization cylinder 9 to heat the internal material. By starting the turning motor 221 to drive the turning gear 222 to rotate, the turning gear ring 23 drives the side end cover 92 to rotate, so that the carbonization cylinder 9 can rotate in the flame, and the material inside the carbonization cylinder 9 can be evenly heated and carbonized, preventing the straw biomass at the lower part from being over-carbonized due to uneven heating;

[0056] When heating the carbonization cylinder 9, the heat passes through the empty chamber 93 and then carbonizes the internal material at high temperature. After the material is heated to a high temperature, gas is generated. After the gas expands, it enters the empty chamber 93 through the through groove 931. By starting the extraction motor 121 to drive the extraction gear 122 to push the extraction disc 123 to rotate, the air flow inside the empty chamber 93 is adsorbed through the gas collection component 10 and enters the extraction shell 11, and is discharged into the return air pipe 13 and discharged from the air release pipe 14 by the rotation of the extraction fan blade 124 and added to the burning flame. The carbon monoxide in the gas can burn and reduce the fuel input;

[0057] The remaining heat generated by the combustion around the carbonization cylinder 9 enters the tempering bin 15 from the upper end of the carbonization shell 4. Through the connecting pipe 16 and the lifting and extending shell 17, the remaining heat and gas enter the guiding pipe 18. Driven by starting the guiding fan 21, the heat flow enters the tempering core pipe 19, and the secondary ignition mechanism 20 continuously attempts to conduct secondary ignition on the heat, enabling the combustible gas and harmful gas in the heat flow to burn again, reducing the discharge of harmful gases, and being able to utilize the heat flow to the greatest extent while heating and carbonizing the material at the center thereof.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A carbonization furnace for preparing activated carbon and straw biomass fuel, characterized in that: It includes a fuel base (1), the upper end of the fuel base (1) is fixedly connected with a combustion chamber (2), the surface of the combustion chamber (2) is slidably connected with a sealing cover (3), the upper end of the combustion chamber (2) is fixedly connected with a carbonization shell (4), the outer surface of the carbonization shell (4) is fixedly connected with a lifting motor (5), the output end of the lifting motor (5) is fixedly connected with a synchronous gear set (6), the surface of the synchronous gear set (6) is connected with a lifting shaft (7), and the inner side of the carbonization shell (4) is slidably connected with a lifting inner shell (8), and the lifting shaft (7) contacts the lifting inner shell (8); A carbonization cylinder (9) is rotatably connected to the inner side of the lifting inner shell (8), the carbonization cylinder (9) is communicated with a gas collecting assembly (10), one end of the gas collecting assembly (10) far from the carbonization cylinder (9) is communicated with a pumping shell (11), a pumping mechanism (12) is connected to the outside of the pumping shell (11), a return air pipe (13) is connected to the upper end of the pumping shell (11), the lower end of the return air pipe (13) is communicated with an air release pipe (14), and the pumping shell (11) is slidably connected with the carbonization shell (4); A cover plate is arranged at the upper end of the carbonization shell (4), a long strip through hole is arranged at the top end of the cover plate, a tempering chamber (15) is fixedly connected to the upper end of the carbonization shell (4), the tempering chamber (15) covers the outside of the long strip through hole of the carbonization shell (4), a connecting pipe (16) is slidably connected to the end face of the tempering chamber (15), a lifting extension shell (17) is clamped to the end face of the connecting pipe (16), a guide pipe (18) is sleeved outside the lifting extension shell (17), a tempering core pipe (19) is communicated with one side of the guide pipe (18) close to the carbonization cylinder (9), the tempering core pipe (19) penetrates through the carbonization cylinder (9), a secondary ignition mechanism (20) is arranged at one end of the tempering core pipe (19) close to the guide pipe (18), and a guide fan (21) is fixedly connected to the outside of the guide pipe (18); A turning mechanism (22) is arranged on the outside of the pumping shell (11), a turning gear ring (23) is meshed on the surface of the turning mechanism (22), and the turning gear ring (23) is connected with the carbonization cylinder (9); The carbonization cylinder (9) includes an outer enclosure (91), side end covers (92), and a void chamber (93). The outer enclosure (91) is divided into an upper enclosure (911) and a lower enclosure (912). The end faces of the upper enclosure (911) and the lower enclosure (912) are both arc-shaped and together form a cylindrical shape. One end of the upper enclosure (911) is hinged to the lower enclosure (912), and the other end is snap-connected. The side end covers (92) are fixedly connected to both ends of the lower enclosure (912). The tempering core pipe (19) passes through the center of the side end covers (92). A pipe is provided at the center of the end face of the side end covers (92), and the pipe is outside the tempering core pipe (19). The void chamber (93) is composed of four empty shells with different arc lengths. The overall shape of the void chamber (93) is cylindrical. The void chamber (93) is arranged inside the outer enclosure (91). The four sections of the void chamber (93) are divided into upper, lower, left, and right parts. The void chambers (93) on the left, right, and below are all connected to the inner wall of the lower enclosure (912), and the void chamber (93) above is connected to the inside of the upper enclosure (911). A through groove (931) penetrating the inner wall is provided inside the cavity of the void chamber (93). One end of the gas collection assembly (10) is a gas collection combined pipe (101), and the other end is a docking ring (102). One end of the gas collection combined pipe (101) is connected to the four parts of the void chamber (93) respectively, and the other end is communicated with the docking ring (102). The docking ring (102) is sleeved outside the pipe provided at the center of the end face of the side end cover (92), and the docking ring (102) is connected to the extraction shell (11).

2. The carbonization furnace for preparing activated carbon and straw biomass fuel according to claim 1, wherein: The extraction mechanism (12) includes an extraction motor (121), an extraction gear (122), an extraction disc (123), and extraction fan blades (124). The extraction motor (121) is fixedly connected to the outside of the extraction shell (11). The extraction gear (122) is fixedly connected to the output end of the extraction motor (121). The extraction disc (123) is rotatably connected inside the extraction shell (11). Tooth teeth are provided on the outer peripheral edge of the extraction disc (123). The extraction disc (123) meshes with the extraction gear (122). The extraction fan blades (124) are arranged in an array on the end face of the extraction disc (123). After the extraction fan blades (124) rotate, they have the function of pumping air.

3. A carbonization furnace for preparing activated carbon and straw biomass fuel according to claim 1, characterized in that: The air release pipe (14) is composed of a circular pipe (141) and an air jet port (142). Both ends of the circular pipe (141) are communicated with the return air pipe (13). The air jet port (142) is in a horn shape. There are two groups of air release pipes (14) located on both sides of the carbonization cylinder (9) respectively.

4. A carbonization furnace for preparing activated carbon and straw biomass fuel according to claim 1, characterized in that: The synchronous gear set (6) includes a synchronous gear shaft (62) and a synchronous chain (63). The center of the synchronous gear shaft (62) is a cylindrical shaft, and a spur gear and a large sprocket are arranged on the surface of the cylindrical shaft. There are two sets of synchronous gear shafts (62) in total, and the spur gears of the two sets are meshed. The large sprocket on the synchronous gear shaft (62) is sleeved with a synchronous chain (63). The synchronous chain (63) is sleeved on the outside of the lifting shaft (7). The center of the lifting shaft (7) is a circular shaft, and a small sprocket matching the synchronous chain (63) is arranged on the end face of the circular shaft. A preset cam is arranged on the part of the circular shaft of the lifting shaft (7) located in the combustion chamber (2), and the cam can contact the lifting inner shell (8). The cams of the two relatively arranged lifting shafts (7) are symmetrically arranged with the midline between the two as the axis.

5. The carbonization furnace for preparing activated carbon and straw biomass fuel according to claim 1, characterized in that: The guide pipe (18) has the shape of a hollow pipe, and inclined pieces for preventing the backflow of air flow are arranged inside the guide pipe (18).

6. The carbonization furnace for preparing activated carbon and straw biomass fuel according to claim 1, wherein: The lifting inner shell (8) includes a support wall (81) and a support frame (82). The support wall (81) is rotationally connected to a pipe arranged at the center of the end face of the side end cover (92). The support frame (82) is fixedly connected to the lower end of the support wall (81), and the support frame (82) can contact the lifting shaft (7).

7. The carbonization furnace for preparing activated carbon and straw biomass fuel according to claim 1, characterized in that: The flipping mechanism (22) includes a flipping motor (221) and a flipping gear (222). The flipping motor (221) is connected to the outside of the extraction shell (11) through a fixing frame, and the flipping gear (222) is fixedly connected to the output end of the flipping motor (221) and meshes with the flipping gear ring (23).

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