Nonmetal powder spiral carbonization furnace
By setting the combustion furnace in the center of the spiral carbonization furnace, all-round heat radiation is achieved, and a material drying unit and carbonization module are set up above and below to share the heating module, which solves the problem of uneven heat distribution, reduces cost and energy consumption, and improves carbonization efficiency and quality.
Patent Information
- Application Number
- CN202422023664.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-08-21
AI Technical Summary
When the existing spiral carbonization furnaces are carbonized with non-metallic powders, the heat distribution is uneven, resulting in high costs, large energy consumption, and uneven biomass carbonization. The carbonization effect is poor when the particles are large.
A non-metallic powder spiral carbonization furnace is designed. The combustion furnace is set at the center of the carbonization furnace and the heat is radiated in all directions. The material drying unit and the carbonization module are respectively arranged on the upper and lower parts of the combustion furnace. A heating module is used to control the rotation of the twisting dragon and the stirring rod through the motor to achieve uniform heating and turning of the material.
It improves the heat utilization rate, reduces cost and energy consumption, simplifies the carbonization process, ensures the drying and carbonization quality of materials, and improves the carbonization efficiency.
Smart Images
Figure CN222821481U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of carbonization furnaces, and in particular relates to a non-metallic powder spiral carbonization furnace. Background Art
[0002] A carbonization furnace is a mechanical device used for high-temperature dry distillation and oxygen-free carbonization of carbon-containing materials such as sawdust, rice husks, peanut shells, and bark. The carbonization furnace mainly relies on a burner to heat and dry the material. The existing spiral carbonization furnace can basically achieve continuous pyrolysis carbonization, but since non-metallic powders need to go through a drying stage, an initial carbonization stage, and a comprehensive carbonization stage during carbonization, the prior art generally requires a dryer to be added near the carbonization furnace when drying the carbonized material. Although it can meet the function of drying materials, the additional drying opportunity will directly cause excessive costs and increase energy consumption. At the same time, the current carbonization furnace generally uses bottom external heating when heating, which will lead to uneven heat distribution. The carbonization furnace can only be effectively heated on the contact surface with the heat source, while other places cannot directly contact the heat source and need to rely on heat radiation, and the utilization rate of heat is low. And when the existing heating method is used to carbonize biomass, it is easy to cause excessive carbonization of biomass close to the heat source, while the carbonization degree of biomass far away from the heat source is insufficient, which makes the carbonization furnace have poor carbonization effect on biomass with larger particles. Utility Model Content
[0003] In view of the problems existing in the prior art, the utility model provides a non-metallic powder spiral carbonization furnace. By placing the combustion furnace in the middle of the carbonization furnace, the heat of the combustion furnace can be fully utilized, thereby improving the utilization rate of heat. The heat of the combustion furnace can enable the material drying unit and the carbonization module to complete the drying and carbonization work, thereby simplifying the processing procedure and ensuring the carbonization quality.
[0004] The solution adopted by the utility model to solve the technical problem is: a non-metallic powder spiral carbonization furnace, including a combustion furnace, a material drying unit and a carbonization module, the combustion furnace is arranged at the center of the carbonization furnace, a furnace cover is installed at one end of the combustion furnace, an air inlet fan is arranged outside the carbonization furnace, and the air inlet fan is connected to a pipe joint on the furnace cover through an air inlet pipe; the material drying unit is arranged above the combustion furnace in the carbonization furnace, including a sealing gas cylinder horizontally mounted above the interior of the carbonization furnace, a drying cylinder is matched in the sealing gas cylinder, and a A feed port connected to a drying cylinder, wherein an auger is rotatably mounted inside the drying cylinder, and a motor 1 for controlling the rotation of the auger is installed on the outer side of the carbonization furnace, so that the heat generated by the combustion furnace can be radiated into the drying cylinder; the carbonization module is arranged below the combustion furnace, and comprises a hollow rotating shaft which is rotatably mounted inside the carbonization furnace, and stirring rods are symmetrically connected on both sides of the hollow rotating shaft through connecting pipes, and a motor 2 for controlling the rotation of the hollow rotating shaft is installed on the outside of the carbonization furnace, so that the heat generated by the combustion furnace can be radiated into the range of the carbonization module, and a bottom discharge furnace door is arranged at the bottom of the carbonization furnace 1.
[0005] Furthermore, the stirring rod has pores on its surface, and a pipe joint 2 connected to the hollow rotating shaft is installed on the outside of the carbonization furnace. The combustion furnace and the air duct are connected through the pipe joint 2, and an exhaust fan is installed on the pipe joint 2.
[0006] Furthermore, the discharge ends of the drying cylinder and the sealing gas cylinder are provided with a drop opening, and a clearance groove corresponding to the drop opening is provided at the far end of the combustion furnace, so that the material can fall into the bottom of the carbonization furnace through the drop opening and the clearance groove.
[0007] Furthermore, a grid plate and a filter screen are provided on one side of the combustion furnace close to the air guide pipe.
[0008] Furthermore, the sealing gas cylinder is connected to an exhaust pipe extending outward, and an air pump is provided on the exhaust pipe.
[0009] Compared with the prior art, the beneficial effects of the utility model are:
[0010] The utility model arranges a carbonizing furnace, a combustion furnace, a material drying unit and a carbonizing unit, and arranges the combustion furnace at the center of the carbonizing furnace, so that the heat generated by the combustion furnace can be radiated in all directions in the carbonizing furnace, thereby realizing all-round retention and utilization of heat and improving the utilization rate of heat, and the material drying unit and the carbonizing module are respectively arranged at the upper and lower parts of the combustion furnace, and the two share a heating module, which reduces the cost and energy consumption, and the material can be carbonized immediately after drying, simplifying the carbonization process; the rotation of the auger and the stirring rod is controlled by motor one and motor two, so that uniform heating and turning of the material in the drying and carbonization process are realized, and the quality of material drying and carbonization is guaranteed; the design of the air duct and the exhaust fan enables the heat generated by the combustion furnace to be more directly and efficiently transported to the carbonizing module, thereby further improving the carbonization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0012] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;
[0013] Figure 3 It is a front view cross-sectional structural schematic diagram of the utility model;
[0014] Figure 4 This is a schematic diagram of the combustion furnace structure of the utility model.
[0015] In the figure: 1. carbonization furnace; 2. combustion furnace; 21. give way groove; 22. filter screen; 23. grid plate; 24. furnace cover; 25. pipe joint one; 26. air inlet fan; 27. air inlet pipe; 3. material drying unit; 31. sealing gas cylinder; 32. drying cylinder; 33. motor one; 34. auger; 35. drop port; 36. exhaust pipe; 37. air pump; 4. carbonization module; 41. hollow shaft; 42. connecting pipe; 43. stirring rod; 44. motor two; 45. air guide pipe; 46. pipe joint two; 47. exhaust fan; 5. feed port; 6. bottom discharge furnace door; 7. support. DETAILED DESCRIPTION
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0017] See also Figure 1-4 The utility model provides a technical solution for a non-metallic powder spiral carbonization furnace: Example
[0018] according to Figure 1 and Figure 2As shown, a material drying unit 3, a combustion furnace 2 and a carbonization module 4 are sequentially arranged in the carbonization furnace 1 from top to bottom, wherein the combustion furnace 2 is arranged at the center of the carbonization furnace 1. The structure of the combustion furnace 2 is as shown in FIG. Figure 4 As shown, the combustion furnace 2 is transversely fixed in the carbonization furnace 1, and a furnace cover 24 is installed at one end of the combustion furnace 2, and the furnace cover 24 is set on the carbonization furnace 1. The furnace cover 24 can be opened to put fuel into the combustion furnace 2, and an air inlet fan 26 is arranged on the outside of the carbonization furnace 1. The air inlet fan 26 is connected to the pipe joint 25 on the furnace cover through an air inlet pipe 27. The air inlet pipe 27 and the pipe joint 25 are detachable. When the fuel is put into the combustion furnace 2 and ignited, the air inlet pipe 27 is connected to the pipe joint 25, and then the air inlet fan 26 supplies air to the combustion furnace 2 through the air inlet pipe 27, so that the fuel is fully burned and the carbonization furnace 1 is heated. The heat generated by the combustion furnace 2 can be radiated upward and downward in the carbonization furnace 1. A clearance groove 21 is arranged at the other end of the combustion furnace 2, and the logistics after preliminary drying by the material drying unit 3 can fall into the range of the carbonization module 4 through the clearance groove 21 for carbonization. By arranging the combustion furnace 2 in the carbonization furnace 1, the heat generated by the combustion furnace 2 can be retained in the carbonization furnace 1 in all directions and utilized, thereby improving the utilization rate of the heat.
[0019] The material drying unit 3 is arranged above the carbonization furnace 1. Figure 3As shown, the material drying unit 3 includes a sealed air cylinder 31 which is transversely mounted on the upper part of the interior of the carbonization furnace 1, and a drying cylinder 32 is matched and mounted in the sealed air cylinder 31. A feed port 5 connected to the drying cylinder 32 is fixed on the carbonization furnace 1, and the non-metallic powder to be carbonized can fall into the drying cylinder 32 through the feed port 5. An auger 34 is rotatably mounted in the drying cylinder 32. A motor 33 is installed on the side of the carbonization furnace 1, and the output end of the motor 33 is connected to the end of the auger 34. The heat generated by the combustion furnace 2 inside the carbonization furnace 1 can be radiated into the drying cylinder 32 to heat and dry the material in the drying cylinder 32. Since a layer of sealed air cylinder 31 is arranged on the outer side of the drying cylinder 32, the heat radiation received by the material drying unit 3 will be smaller than that of the carbonization module 4. The heat provided by the combustion furnace 2 to the material drying unit 3 can meet the drying needs of the material without causing carbonization of the material. At the same time, the operation of the motor 33 drives the auger 34 to rotate, so that the material is moved from the drying cylinder 32 to the outside. Moving from left to right, the auger 34 can realize the function of flipping the material while guiding the material, so as to ensure that the non-metallic powder can be heated evenly and the drying effect of the material is ensured. An exhaust pipe 36 extending outward is connected to the sealed air cylinder 31, and an air pump 37 is provided on the exhaust pipe 36. During the drying process of the material, the air pump 37 can be controlled to operate, and the moisture generated during the drying of the non-metallic powder can be discharged through the exhaust pipe 36. The discharge ends of the drying cylinder 32 and the sealed air cylinder 31 are provided with a drop opening 35 corresponding to the give way groove 21. The material drying unit 3 is connected with the carbonization module 4 through the drop opening 35. The dried material falls into the carbonization module 4 through the drop opening 35 for high-temperature carbonization. By adding the material drying unit 3 in the carbonization furnace 1, and the material drying unit 3 and the carbonization module 4 share a heating module, the preliminary drying step of the non-metallic powder can be completed without the need for additional drying equipment, thereby simplifying the carbonization process and reducing costs and energy consumption.
[0020] The carbonization module 4 is arranged at the inner bottom of the carbonization furnace 1, including a hollow rotating shaft 41 which is laterally rotated and sleeved in the carbonization furnace 1. Stirring rods 43 are symmetrically connected to both sides of the hollow rotating shaft 41. A motor 44 is installed outside the carbonization furnace 1. The motor 44 can control the rotation of the hollow rotating shaft 41. The dried non-metallic powder material falls into the bottom of the carbonization furnace 1 from the drop port 35 and the give way groove 21. At the same time, the heat generated by the combustion furnace 2 can also radiate into the range of the carbonization module 4 to provide the non-metallic powder material with the heat required for carbonization. The motor 44 drives the hollow rotating shaft 41 to rotate, and can stir and turn the non-metallic powder at the bottom of the carbonization furnace 1, so that the material is heated evenly and the uniformity of the carbonization of the material is ensured. A bottom discharge furnace door 6 is arranged at the bottom of the carbonization furnace 1. After carbonization is completed, the bottom discharge furnace door 6 can be opened to discharge the carbonized material. A support 7 is arranged below the carbonization furnace 1, and the carbonization furnace 1 is supported by the support 7 as a whole.
[0021] When used specifically, the utility model is a non-metallic powder spiral carbonization furnace. Fuel is added to the combustion furnace 2 in advance, and air is ventilated into the combustion furnace 2 through the air inlet fan 26 and the air inlet pipe 27 to fully burn the fuel. Then, the non-metallic powder to be carbonized is poured into the drying cylinder 32 through the feed port 5, and the motor 33 is controlled to operate to drive the auger 34 to rotate. The material in the drying cylinder 32 is transferred to the right through the auger 34. At the same time, the high temperature generated by the combustion furnace 2 in the carbonization furnace 1 can be partially transferred to the sealed air cylinder 31 and the drying cylinder 32, and the heat transferred by the combustion furnace 2 is used to dry the non-metallic powder. The material in the cylinder 32 is heated and dried, and the air pump 37 is operated at the same time to discharge the moisture generated during the drying process from the exhaust pipe 36. After the material is dried, it is driven by the auger 34 to fall from the drop port 35 into the bottom of the carbonization furnace 1 for high-temperature carbonization. During the carbonization process, the control motor 2 44 is operated to drive the stirring rod 43 to rotate through the connecting pipe 42 to stir and turn the material so that the material is evenly carbonized. When the carbonization is completed, the bottom discharge furnace door 6 is opened, and the carbonized material is discharged from the carbonization furnace 1. Finally, the furnace cover 24 is opened to take out the burnt fuel slag from the combustion furnace 2. Example
[0022] On the basis of the first embodiment, Figure 3 As shown, an air hole is opened on the stirring rod 43, and the stirring rod 43 is connected to the hollow rotating shaft 41 through a connecting pipe 42, and a pipe joint 45 connected to the hollow rotating shaft 41 is installed on the outer side of the carbonization furnace 1, the combustion furnace 2 and the air guide pipe 46 are connected through the pipe joint 45, and an exhaust fan 47 is installed on the pipe joint 45. Since the heat required for carbonization of non-metallic powders is greater than the heat of drying, the heat generated by the combustion furnace 2 can also be directly transported to the hollow rotating shaft 41 through the pipe joint 45 and the exhaust fan 47, and then accurately discharged into the material through the stirring rod 43 for auxiliary heating, so that the material can have enough heat for carbonization, and the heat can also accurately penetrate into the material to ensure that the material is carbonized in all directions, which can effectively avoid the occurrence of uneven carbonization.
[0023] A grid plate 23 and a filter screen 22 are arranged on one side of the combustion furnace 2 near the pipe joint 2 45. The filter screen 22 is arranged on the rear side of the grid plate 23. In the process of directly sending the heat in the combustion furnace 2 into the carbonization module 4, the filter screen 22 and the grid plate 23 can intercept the combustion materials and dust in the combustion furnace 2 to prevent the dust from entering the carbonization module 4 and affecting the carbonization quality of the non-metallic dust.
[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A non-metallic powder spiral carbonization furnace, characterized in that: The carbonization furnace (1) comprises a combustion furnace (2), a material drying unit (3) and a carbonization module (4), wherein the combustion furnace (2) is arranged at the center of the carbonization furnace (1), a furnace cover (24) is installed at one end of the combustion furnace (2), an air inlet fan (26) is arranged outside the carbonization furnace (1), and the air inlet fan (26) is connected to a pipe joint (25) on the furnace cover (24) through an air inlet pipe (27); the material drying unit (3) is arranged above the combustion furnace (2), and comprises a sealing gas cylinder (31) which is transversely mounted on the upper part of the interior of the carbonization furnace (1), a drying cylinder (32) is matched and mounted inside the sealing gas cylinder (31), and a material feed port (5) which is connected to the drying cylinder (32) is fixed on the carbonization furnace (1). The drying cylinder (32) is rotatably mounted with an auger (34), and a motor (33) for controlling the rotation of the auger (34) is mounted on the outer side of the carbonization furnace (1). Heat generated by the combustion furnace (2) can be radiated into the drying cylinder (32). The carbonization module (4) is arranged below the combustion furnace (2), and comprises a hollow rotating shaft (41) rotatably mounted in the carbonization furnace (1). Stirring rods (43) are symmetrically connected to both sides of the hollow rotating shaft (41) through connecting pipes (42). A motor (44) for controlling the rotation of the hollow rotating shaft (41) is mounted on the outer side of the carbonization furnace (1). Heat generated by the combustion furnace (2) can be radiated into the range of the carbonization module (4). A bottom discharge furnace door (6) is arranged at the bottom of the carbonization furnace (1).
2. The non-metallic powder spiral carbonization furnace (1) according to claim 1, characterized in that: The stirring rod (43) has pores on its surface. A second pipe joint (46) connected to the hollow rotating shaft (41) is installed on the outside of the carbonization furnace (1). The combustion furnace (2) and the air guide pipe (45) are connected via the second pipe joint (46), and an exhaust fan (47) is installed on the second pipe joint (46).
3. The non-metallic powder spiral carbonization furnace (1) according to claim 1, characterized in that: The discharge ends of the drying cylinder (32) and the sealing gas cylinder (31) are provided with a material drop opening (35), and a clearance groove (21) corresponding to the material drop opening (35) is provided at the far end of the combustion furnace (2), so that the material can fall into the bottom of the carbonization furnace (1) through the material drop opening (35) and the clearance groove (21).
4. The non-metallic powder spiral carbonization furnace (1) according to claim 1 or 2, characterized in that: A grid plate (23) and a filter screen (22) are provided on one side of the combustion furnace (2) close to the air guide pipe.
5. The non-metallic powder spiral carbonization furnace (1) according to claim 1, characterized in that: The sealing gas cylinder (31) is connected to an exhaust pipe (36) extending outward, and an air pump (37) is provided on the exhaust pipe (36).