Activation furnace based on liquid phase carbonization technology
By using structures such as barrier mesh barrels, rotating mechanisms and permeation components in the liquid phase carbonization technology activation furnace, the problem of liquid media not being able to uniformly wrap raw materials is solved, the uniformity of heating and activation effect are improved, and the quality of porous carbon materials is improved.
Patent Information
- Application Number
- CN202510622367.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2025-07-22
AI Technical Summary
When the existing liquid phase carbonization technology activation furnace is used to treat low-density raw materials, the liquid medium cannot evenly wrap the raw materials, resulting in uneven heat distribution, local overheating or incomplete pyrolysis, resulting in product structure defects.
The barrier mesh barrel, outer jacket and inner sleeve structure is adopted, and the contact channel between the liquid medium and the raw material is controlled through the driving mechanism, and the rotating mechanism and the stirring rod are combined to promote uniform contact between the liquid medium and the raw material; the extrusion block of the permeable component is used to accelerate the penetration of the liquid medium, and the barrier mesh plate and gas conveying roller ensure that the raw material is in the liquid medium throughout the activation stage.
The liquid medium is able to uniformly wrap the raw materials, ensure uniform heating, avoid the problems of local overheating or incomplete pyrolysis, and improve the specific surface area and functional characteristics of porous carbon materials.
Smart Images

Figure CN120348948A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of the production of inorganic non-metallic materials - porous carbon. Specifically, it relates to an activation furnace based on liquid-phase carbonization technology. Background Art
[0002] At present, as an inorganic non-metallic material, porous carbon plays a crucial role in the new energy industry. In addition, doping carbon materials with elements such as nitrogen, sulfur, boron, and phosphorus can endow them with more abundant functionalities. Porous carbon materials doped with heteroelements have a wide range of applications in many fields. As an efficient method for preparing porous carbon materials, liquid-phase carbonization technology has shown important application value in the fields of energy storage, environmental governance, and catalysis in recent years. Its core lies in placing the raw materials and a specific liquid medium in a high-temperature sealed environment, and realizing the carbonization and subsequent activation of the raw materials through the heat and mass transfer effects of the liquid phase environment.
[0003] After retrieval, it is found that the Chinese patent with the publication number CN118637620B discloses an activation device for the production of activated carbon. The key components of this patent include: a material distribution and detection mechanism (including a negative pressure pipe connected to an external negative pressure structure, with multiple material distribution detection belts arranged at intervals on the pipe, and reverse and forward material guiding structures on the side of the belt, extending to the furnace bottom) and a temperature testing structure (a retention component is arranged in the middle of the inner side of the material distribution detection belt, and a temperature detector is on the surface through which it passes, and the detector is electrically connected to the material guiding structure). This device can extract the agglomerated activated carbon at the bottom layer for splitting to improve the effect of uniform heating. However, although this patent has a design for improving the heating uniformity on the traditional activation furnace for the preparation of activated carbon, this setting still has great limitations. The suction component used to extract the agglomerated activated carbon cannot fully cover all the activated carbon, so there is still a problem that some activated carbon will be underheated or overheated. The activation furnace of the liquid-phase carbonization technology can well solve this problem. The liquid medium can not only isolate oxygen and reduce side reactions, but also regulate the pore structure and surface chemical properties of the carbonized product through penetration and wrapping effects, thereby significantly improving the specific surface area and functional characteristics of the activated material. The key is that heat can be evenly transferred to the interior of the raw materials. However, the existing activation furnaces of the liquid-phase carbonization technology still have problems. When facing low-density raw materials and high-density liquid media, the raw materials will float on the surface of the liquid medium, resulting in the liquid medium being unable to evenly wrap the raw materials, leading to uneven heat distribution during the carbonization stage, local overheating or incomplete pyrolysis, and causing structural defects in the product. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to overcome the defects existing in the prior art, and provide an activation furnace based on liquid-phase carbonization technology. By directly introducing the raw materials into the barrier mesh cylinder, restricting the raw materials and then introducing the liquid medium, the raw materials are prevented from floating to the surface of the liquid medium, improving the effect of liquid wrapping and making the heating more uniform.
[0005] To solve the above technical problem, the technical solution of the present invention is an activation furnace based on liquid-phase carbonization technology, including:
[0006] A carbonization zone and an activation zone, an inlet pipe and at least one feed pipe are arranged on the carbonization zone, an outlet pipe and an inlet gas pipe are arranged on the activation zone, and heating devices are arranged on both the carbonization zone and the activation zone;
[0007] A wrapping assembly corresponding to the feed pipe, the wrapping assembly includes an inner sleeve fixed in the carbonization zone, an outer sleeve rotatably arranged outside the inner sleeve, and a hollow rotating rod. The outer peripheral surface of the inner sleeve is in contact with the inner wall of the outer sleeve. The rotating rod is arranged in the inner sleeve and communicates with the feed pipe. The outer sleeve is provided with a second opening part and a closing part, and the inner sleeve is provided with a first opening part;
[0008] A barrier mesh cylinder arranged in the inner sleeve, the barrier mesh cylinder is fixedly sleeved outside the rotating rod, and the part of the rotating rod located inside the barrier mesh cylinder is provided with a discharge port for the raw materials to enter the barrier mesh cylinder. The barrier mesh cylinder is suitable for preventing the raw materials from floating on the surface of the liquid medium;
[0009] A driving mechanism, the driving mechanism is connected to the outer sleeve and is suitable for driving the outer sleeve to rotate, so that the second opening part or the closing part is aligned with the first opening part to control the opening or closing of the channel for the liquid medium in the carbonization zone to enter the inner sleeve and contact the raw materials.
[0010] Further, the driving mechanism includes a first driving motor, a driving shaft, a first one-way bearing, a rotating shaft, a first driving gear and a first driven gear;
[0011] The first driving motor is installed on the activation furnace, the driving shaft is connected to the output end of the first driving motor, the rotating shaft is rotatably installed in the carbonization zone, the rotating shaft and the driving shaft are connected by the first one-way bearing, the first driving gear is fixedly sleeved outside the rotating shaft, the first driven gear is fixedly sleeved outside the outer sleeve, the first driving gear is meshed with the first driven gear, and the driving shaft is suitable for being driven to rotate reversely to drive the rotating shaft to rotate, and then drive the outer sleeve to rotate.
[0012] Furthermore, the activation furnace based on the liquid phase carbonization technology further comprises a rotating mechanism, wherein the rotating rod is rotatably arranged in the inner sleeve, and the rotating mechanism is connected to the rotating rod so as to be suitable for driving the barrier net cylinder to rotate in the inner sleeve, and at least one stirring rod is arranged on the outer peripheral surface of the barrier net cylinder, and the stirring rod is suitable for being driven to rotate so as to generate vortex in the mixture of the liquid medium and the raw material, so as to promote the liquid medium to wrap the raw material;
[0013] The rotating rod is connected to the feeding pipe via a rotating sealing member.
[0014] Further, the rotating mechanism includes a linkage rod, a second one-way bearing, a second driving gear and a second driven gear;
[0015] The linkage rod is rotatably installed in the carbonization zone, the drive shaft is connected to the linkage rod through the second one-way bearing, the second driving gear is fixedly sleeved on the outside of the linkage rod, the second driven gear is fixedly sleeved on the outside of the rotating rod, the second driving gear is meshed with the second driven gear, and the drive shaft is suitable for being driven to rotate forward to drive the rotating rod to rotate.
[0016] Furthermore, a second driving motor is installed on the feed pipe, a first switch ring is fixedly arranged in the inner sleeve, a through groove communicating with the discharge port is opened on the first switch ring, the first switch ring is located in the rotating rod, a second switch ring is rotatably installed on the first switch ring, a connecting rod is connected to the second switch ring, the connecting rod is connected to the output end of the second driving motor, docking grooves are opened on the first switch ring and the second switch ring, and the second driving motor is suitable for driving the second switch ring to rotate to control the alignment or stagger of the docking grooves on the first switch ring and the second switch ring, thereby controlling the opening or closing of the channel between the discharge port and the feed pipe.
[0017] Furthermore, the activation furnace based on the liquid phase carbonization technology also includes a permeation component, the permeation component includes a linear motion mechanism and an extrusion block, the extrusion block is located in the inner sleeve, and the outer peripheral surface of the extrusion block is in contact with the inner wall of the inner sleeve, the linear motion mechanism is connected to the extrusion block to drive the extrusion block to reciprocate longitudinally to generate pressure on the liquid medium in the inner sleeve, so that the liquid medium accelerates to penetrate into the raw material;
[0018] The outer casing is further provided with a restricting portion, the restricting portion being a plurality of fine holes. The outer casing is adapted to be driven to rotate so that the restricting portion is aligned with the first opening portion on the inner casing. When the pressing block is driven to move downward, a pressure is generated on the liquid medium in the inner casing, and part of the liquid medium is discharged to the outside of the outer casing through the fine holes. When the pressing block is driven to move upward, part of the liquid medium located outside the outer casing is drawn into the inner casing through the fine holes to accelerate the contact with the raw material.
[0019] Furthermore, the linear movement mechanism includes a reciprocating lead screw which is hollow. The reciprocating lead screw is fixedly sleeved outside the rotating rod. The part of the rotating rod not wrapped by the reciprocating lead screw is a cylindrical portion. The pressing block is assembled outside the reciprocating lead screw. The reciprocating lead screw is adapted to be driven to rotate following the rotating rod, thereby driving the pressing block to linearly reciprocate along the axis direction of the reciprocating lead screw.
[0020] A guiding rod is fixedly arranged in the inner casing. A guiding groove corresponding to the guiding rod is formed in the pressing block. The guiding rod is located in the guiding groove, and the pressing block slides outside the guiding rod when moving.
[0021] Furthermore, a fixing ring is fixedly arranged in the inner casing. The fixing ring is coaxially arranged with the rotating rod. A protective ring is slidably arranged outside the cylindrical portion. The inner wall of the protective ring is in contact with the outer peripheral surface of the cylindrical portion.
[0022] A spring is arranged between the protective ring and the fixing ring. The spring is movably sleeved outside the cylindrical portion. When the pressing block is adapted to be driven to move downward to press the liquid medium, it contacts the protective ring and presses the protective ring, causing the protective ring to move downward, thereby compressing the spring. When the protective ring is adapted to contact the pressing block, it prevents the liquid medium from flowing into the gap between the pressing block and the reciprocating lead screw where they are assembled.
[0023] Furthermore, a delivery pipe is arranged at the bottom of the inner casing. An electric control valve is arranged on the delivery pipe. The outlet end of the delivery pipe extends into the activation area. A support ring is fixedly arranged in the activation area. A barrier mesh plate is arranged on the support ring. The outlet end of the delivery pipe is located below the barrier mesh plate. The barrier mesh plate is adapted to prevent the carbonized raw material discharged through the delivery pipe from floating on the surface of the liquid medium.
[0024] A first air inlet ring is arranged outside the activation furnace and is connected to the air inlet pipe. A second air inlet ring is arranged in the support ring. An air inlet opening penetrating through the activation furnace itself is provided on the activation furnace. The air inlet opening is adapted to introduce the gas activator in the first air inlet ring into the second air inlet ring.
[0025] Below the barrier mesh plate, there is a gas delivery rod corresponding to the delivery pipe. The gas delivery rod is hollow and rotatably installed on the second intake ring. The gas delivery rod is connected to the second intake ring through a rotary seal. A gas delivery roller is connected to the gas delivery rod. An intake channel is provided inside the gas delivery roller, and the intake channel communicates with the inner cavity of the gas delivery rod. The inner cavity of the gas delivery rod communicates with the interior of the second intake ring. A number of air holes penetrating the gas delivery roller itself are provided on the gas delivery roller, and the air holes communicate with the intake channel. A number of material holes penetrating the gas delivery roller itself are provided on the gas delivery roller, and the material holes do not communicate with the intake channel.
[0026] A rotating mechanism is provided inside the support ring. The rotating mechanism is connected to the gas delivery rod to drive the gas delivery roller to rotate. When the gas delivery roller is driven to rotate, it drives the surrounding carbonized raw materials to move, enabling the carbonized raw materials to quickly contact the gas activator. The material holes are adapted to bring some of the carbonized raw materials into the gas delivery roller when the gas delivery roller rotates, so as to avoid the accumulation of carbonized raw materials.
[0027] Further, the rotating mechanism includes a third driving motor, a driving gear, an external gear disk, a driving bevel gear, and a driven bevel gear.
[0028] The third driving motor is installed on the activation furnace. The driving gear is rotatably installed inside the support ring. The output end of the third driving motor is connected to the driving gear. The external gear disk is rotatably installed inside the support ring. The external gear disk meshes with the driving gear. The driving bevel gear is fixedly arranged on the external gear disk. The driven bevel gear is fixedly sleeved on the outside of the gas delivery rod. The driving bevel gear meshes with the driven bevel gear.
[0029] Adopting the above technical solution, the present invention has the following beneficial effects:
[0030] 1. Through the arrangement of structures such as the barrier mesh cylinder, the outer sleeve, and the inner sleeve, by aligning the closing part on the outer sleeve with the first opening part on the inner sleeve to cut off the channel for the liquid medium to enter the inner sleeve, and then discharging the raw materials into the barrier mesh cylinder through the rotating rod. The barrier mesh cylinder restricts the position of the raw materials. When the position of the raw materials is restricted, the outer sleeve is rotated again to align the second opening part on the outer sleeve with the first opening part on the inner sleeve to open the channel for the liquid medium to enter the inner sleeve. At this time, the liquid medium enters the inner sleeve to submerge the restricted raw materials, preventing the raw materials from floating on the surface of the liquid medium and ensuring that the liquid medium completely wraps the raw materials.
[0031] 2. Through the settings of structures such as the rotating mechanism, stirring rod, and extrusion block, the rotating mechanism drives the stirring rod and the barrier mesh cylinder to rotate synchronously. Under the rotation, eddies are generated in the liquid medium, and the raw materials are promoted to fully contact the liquid medium by strengthening the flow and dispersion of the liquid medium. Based on the stirring rod, the downward movement of the extrusion block squeezes the liquid medium. After being pressed, the liquid medium accelerates to penetrate into the raw materials. At the same time, part of the liquid medium flows out through the pores of the limiting part, avoiding excessive pressure in the inner sleeve that may damage the inner sleeve and the raw materials themselves. When the extrusion block moves upward, it will re-pump the liquid medium outside the inner sleeve into the inner sleeve through the pores. The quickly pumped liquid medium accelerates the mixing with the raw materials and flushes the surface of the raw materials, avoiding passivation caused by the attachment of by-products due to the easy generation of reaction by-products on the contact surface between the liquid medium and the raw materials.
[0032] 3. Through the settings of structures such as the barrier mesh plate and the gas delivery roller, the barrier mesh plate blocks the carbonized raw materials below the liquid level of the liquid medium, ensuring that the raw materials are fully located in the liquid medium throughout the activation stage, avoiding excessive local temperature difference and incomplete activation in some parts. The gas delivery roller disperses the raw materials pressed in the liquid medium to multiple regions by rotating. The outer and inner circles of the gas delivery roller spray the gas activator simultaneously, acting on the raw materials in different regions respectively to carry out the activation work on the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 is the overall structural schematic diagram of the present invention;
[0034] Figure 2 is the main body structural schematic diagram of the activation furnace of the present invention;
[0035] Figure 3 is the internal structural schematic diagram of the activation furnace of the present invention;
[0036] Figure 4 is the internal structural schematic diagram of the carbonization zone of the present invention Figure 1 ;
[0037] Figure 5 is the internal structural schematic diagram of the carbonization zone of the present invention Figure 2 ;
[0038] Figure 6 is of the present invention Figure 5 enlarged view of part A;
[0039] Figure 7 is the combined structural schematic diagram of the inner sleeve and the outer sleeve of the present invention;
[0040] Figure 8 is the internal structural schematic diagram of the inner sleeve of the present invention;
[0041] Figure 9 is the overall structural schematic diagram of the outer sleeve of the present invention;
[0042] Figure 10 Schematic diagram of the switch structure of the rotary rod discharge port of the present invention Figure 1 ;
[0043] Figure 11 Schematic diagram of the switch structure of the rotary rod discharge port of the present invention Figure 2 ;
[0044] Figure 12 Schematic diagram of the switch structure of the rotary rod discharge port of the present invention Figure 3 ;
[0045] Figure 13 Schematic diagram of the internal structure of the activation area of the present invention;
[0046] Figure 14 Planar schematic diagram of the internal structure of the activation area of the present invention;
[0047] Figure 15 Schematic diagram of the structure of the rotating mechanism of the present invention;
[0048] Figure 16 Schematic diagram of the air delivery roller structure of the present invention Figure 1 ;
[0049] Figure 17 Schematic diagram of the air delivery roller structure of the present invention Figure 2 ;
[0050] Figure 18 Schematic diagram of the air delivery roller structure of the present invention Figure 3 ;
[0051] In the figure: 11, carbonization area; 12, activation area; 13, feed pipe; 14, liquid inlet pipe; 15, discharge pipe; 16, gas inlet pipe; 17, delivery pipe;
[0052] 21, first drive motor; 22, drive shaft; 23, first one-way bearing; 24, rotating shaft; 25, first driving gear; 26, outer sleeve; 27, inner sleeve; 28, first driven gear; 29, rotary rod; 210, barrier mesh cylinder; 211, stirring rod; 212, discharge port; 213, first switch ring; 214, second switch ring; 215, docking groove; 216, connecting rod; 217, second drive motor; 218, first opening; 219, second opening; 220, closing part;
[0053] 31, second one-way bearing; 32, linkage rod; 33, second driving gear; 34, second driven gear; 35, limiting part; 36, reciprocating lead screw; 37, cylindrical part; 38, guide rod; 39, extrusion block; 310, fixing ring; 311, spring; 312, protective ring;
[0054] 41. Blocking mesh plate; 42. Support ring; 43. Second intake ring; 44. First intake ring; 45. Third drive motor; 46. Drive gear; 47. Outer gear disk; 48. Active bevel gear; 49. Driven bevel gear; 410. Gas delivery rod; 411. Gas delivery roller; 412. Material hole; 413. Air hole; 414. Intake passage. Detailed implementation mode
[0055] In order to make the content of the present invention easier to be clearly understood, the following further describes the present invention in detail according to specific embodiments in conjunction with the accompanying drawings.
[0056] Embodiment 1
[0057] As Figures 1 - 9 shown, an activation furnace based on the liquid-phase carbonization technology includes:
[0058] A carbonization zone 11 and an activation zone 12, an inlet liquid pipe 14 and at least one inlet feed pipe 13 are arranged on the carbonization zone 11, an outlet pipe 15 and an inlet gas pipe 16 are arranged on the activation zone 12, and heating devices are arranged on both the carbonization zone 11 and the activation zone 12;
[0059] A wrapping assembly corresponding to the inlet feed pipe 13, the wrapping assembly includes an inner sleeve 27 fixed in the carbonization zone 11, an outer sleeve 26 rotatably arranged outside the inner sleeve 27 and a hollow rotating rod 29, the outer peripheral surface of the inner sleeve 27 is in contact with the inner wall of the outer sleeve 26, the rotating rod 29 is arranged in the inner sleeve 27 and communicates with the inlet feed pipe 13, the outer sleeve 26 is provided with a second opening part 219 and a closing part 220, and the inner sleeve 27 is provided with a first opening part 218;
[0060] A blocking mesh cylinder 210 arranged in the inner sleeve 27, the blocking mesh cylinder 210 is fixedly sleeved outside the rotating rod 29, a discharge port 212 is arranged on the part of the rotating rod 29 located in the blocking mesh cylinder 210 for raw materials to enter the blocking mesh cylinder 210, and the blocking mesh cylinder 210 is suitable for blocking the raw materials from floating on the surface of the liquid medium;
[0061] A driving mechanism, the driving mechanism is connected to the outer sleeve 26 to be suitable for driving the outer sleeve 26 to rotate, so that the second opening part 219 or the closing part 220 is aligned with the first opening part 218 to control the opening or closing of the channel for the liquid medium in the carbonization zone 11 to enter the inner sleeve 27 and contact the raw materials.
[0062] As Figures 3 - 6 shown, the driving mechanism includes a first drive motor 21, a drive shaft 22, a first one-way bearing 23, a rotating shaft 24, a first active gear 25 and a first driven gear 28;
[0063] The first driving motor 21 is installed on the activation furnace, the driving shaft 22 is connected to the output end of the first driving motor 21, the rotating shaft 24 is rotatably installed in the carbonization zone 11, the rotating shaft 24 and the driving shaft 22 are connected through a first one-way bearing 23, the first driving gear 25 is fixedly sleeved on the outside of the rotating shaft 24, the first driven gear 28 is fixedly sleeved on the outside of the outer sleeve 26, the first driving gear 25 is meshed with the first driven gear 28, and the driving shaft 22 is suitable for being driven in reverse to drive the rotating shaft 24 to rotate, and then drive the outer sleeve 26 to rotate.
[0064] like Figures 7 - 8 As shown, the activation furnace based on the liquid phase carbonization technology also includes a rotating mechanism, a rotating rod 29 is rotatably arranged in the inner sleeve 27, and the rotating mechanism is connected to the rotating rod 29 to drive the barrier net cylinder 210 to rotate in the inner sleeve 27. At least one stirring rod 211 is arranged on the outer peripheral surface of the barrier net cylinder 210, and the stirring rod 211 is suitable for being driven to rotate to generate vortex in the mixture of the liquid medium and the raw material, so as to promote the liquid medium to wrap the raw material;
[0065] The rotating rod 29 is connected to the feed pipe 13 via a rotating seal.
[0066] like Figures 4 - 6 As shown, the rotating mechanism includes a linkage rod 32, a second one-way bearing 31, a second driving gear 33 and a second driven gear 34;
[0067] The linkage rod 32 is rotatably installed in the carbonization zone 11, the drive shaft 22 and the linkage rod 32 are connected through a second one-way bearing 31, the second driving gear 33 is fixedly sleeved on the outside of the linkage rod 32, the second driven gear 34 is fixedly sleeved on the outside of the rotating rod 29, the second driving gear 33 is meshed with the second driven gear 34, and the drive shaft 22 is suitable for being driven to rotate forward to drive the rotating rod 29 to rotate.
[0068] like Figure 7 , Figures 10 - 12 As shown, a second drive motor 217 is installed on the feed pipe 13, a first switch ring 213 is fixedly arranged in the inner sleeve 27, a through groove communicating with the discharge port 212 is opened on the first switch ring 213, the first switch ring 213 is located in the rotating rod 29, a second switch ring 214 is rotatably installed on the first switch ring 213, a connecting rod 216 is connected to the second switch ring 214, the connecting rod 216 is connected to the output end of the second drive motor 217, a docking groove 215 is opened on the first switch ring 213 and the second switch ring 214, the second drive motor 217 is suitable for driving the second switch ring 214 to rotate to control the alignment or stagger of the docking grooves 215 on the first switch ring 213 and the second switch ring 214, and further control the opening or closing of the channel between the discharge port 212 and the feed pipe 13.
[0069] The working principle of this embodiment is as follows:
[0070] The working steps of the activation furnace are as follows: First, the selected liquid medium is put into the interior of the carbonization zone 11 through the liquid inlet pipe 14. Inside the carbonization zone 11, the liquid medium is preheated to the specified temperature by the heating device, and then the raw material is put into the carbonization zone 11 through the feed pipe 13 to contact with the liquid medium. After the liquid medium wraps the raw material, it is heated again to complete the carbonization of the raw material. During the carbonization process, an inert gas can be added for protection, or an exhaust pipe can be installed on the carbonization zone 11 to discharge other gases generated by chemical reactions during the heating process. After carbonization is completed, the mixture of the liquid medium and the carbonized raw material is introduced into the activation zone 12 through the conveying pipe 17 and heated to the required temperature again. At the same time, a gas activator is introduced into the activation zone 12 through the gas inlet pipe 16. The gas activator is directly introduced into the liquid medium to dissolve or disperse and then reacts with the carbonized raw material to complete the activation work. After the activation work is completed, both the liquid medium and the raw material are discharged through the discharge pipe 15 and subsequent work is carried out, such as cooling and solid-liquid separation, etc., which are not shown in this part of the figure. The above are all the prior arts of the liquid-phase carbonization activation furnace, and its specific working principle will not be elaborated in detail here. The heating devices used in the activation zone 12 and the carbonization zone 11 can be traditional physical heating with gasoline / fuel oil, or resistance heating or electromagnetic induction heating, etc., as long as the temperature can be raised to the required temperature;
[0071] In the prior art, there are various choices for the raw materials and liquid media used in the activation furnace to prepare activated carbon. To prevent the selected raw material from floating on the surface of the selected liquid medium due to the density of the raw material being lower than that of the liquid medium, resulting in the liquid medium being unable to wrap the raw material and unable to effectively achieve the effect of uniform heating, a barrier mesh cylinder 210 is provided to limit the raw material;
[0072] Before adding the liquid medium and raw materials, first start the first driving motor 21 to reverse. The reverse rotation of the drive shaft 22 drives the rotation of the rotating shaft 24 and the first driving gear 25. The first driving gear 25 drives the rotation of the outer sleeve 26 through meshing with the first driven gear 28. The rotation of the outer sleeve 26 aligns the closing portion 220 and the first opening portion 218 of the inner sleeve 27 to close the channel between the carbonization zone 11 and the inner sleeve 27. At this time, the inner sleeve 27 is in a sealed state. In the sealed state of the inner sleeve 27, the liquid medium is introduced into the carbonization zone 11 through the liquid inlet pipe 14 and preheated to ensure the fluidity of the liquid medium. After the preheating is completed, the raw materials are put into the interior of the rotating rod 29 through the feed pipe 13, and the raw materials are placed in the barrier mesh cylinder 210 through the discharge port 212 of the rotating rod 29. After the raw materials are put in, continue to start the first driving motor 21 to reverse, and rotate the outer sleeve 26 until the second opening portion 219 is aligned with the first opening portion 218 of the inner sleeve 27. At this time, the channel between the carbonization zone 11 and the inner sleeve 27 is opened, and the liquid medium flows into the inner sleeve 27 through this channel to contact the raw materials. The raw materials are blocked by the barrier mesh cylinder 210 and cannot float on the surface of the liquid medium, realizing the forced wrapping of the raw materials with a low density. After the liquid medium wraps the raw materials, the heating device can be started to heat the liquid medium and the raw materials to complete the carbonization work;
[0073] To avoid the accumulation and agglomeration of raw materials inside the barrier mesh cylinder 210 when the forced limit of the barrier mesh cylinder 210 causes the liquid medium to wrap the low-density raw materials, and the raw materials in the inner layer of the agglomeration cannot be fully wrapped by the liquid medium, resulting in the liquid medium simply submerging all the raw materials instead of wrapping each raw material. Therefore, a stirring rod 211 is provided. During the carbonization process, the first driving motor 21 is started to rotate forward, and the driving shaft 22 rotates forward to drive the linkage rod 32 to rotate. It should be noted that due to the setting of the first one-way bearing 23 and the second one-way bearing 31, the driving shaft 22 cannot drive the rotating shaft 24 to rotate when rotating forward, nor can it drive the linkage rod 32 to rotate when rotating backward. When the linkage rod 32 rotates, it drives the second driving gear 33 to rotate, and the rotation of the rotating rod 29 is achieved through the meshing of the second driving gear 33 and the second driven gear 34. The rotating rod 29 rotates to drive the barrier mesh cylinder 210 to rotate, and since the stirring rod 211 is connected to the barrier mesh cylinder 210, the stirring rod 211 will also rotate accordingly. Since the rotating rod 29 is rotatably arranged, the rotating rod 29 and the feed pipe 13 are connected through a rotary seal. When the stirring rod 211 is driven to rotate, it stirs the liquid medium, generates eddy currents in the liquid medium to break the static boundary layer between the raw materials and the liquid medium, reduces the resistance to liquid penetration, makes it easier for the medium to penetrate into the internal pores of the raw materials. The eddy currents force the liquid medium to collide with the raw materials in multiple directions, avoid local accumulation of raw materials, ensure that the surfaces of all raw materials are continuously exposed to the liquid medium, reduce reaction dead spots, and improve the wrapping uniformity. The centrifugal force generated by the eddy currents disperses the agglomerated raw materials. At the same time, under the mechanical disturbance of the stirring rod 211, the bubbles or impurities attached to the surface of the moving raw materials fall off, exposing more internal pore channels and creating a physical path for the penetration of the liquid medium;
[0074] In order to prevent the discharge port 212 of the rotating rod 29 from being unable to be closed, thereby affecting various subsequent operations on the liquid medium, a first switch ring 213 and a second switch ring 214 are provided in the rotating rod 29. The first switch ring 213 is fixed, and the rotating rod 29 is rotatably provided outside the first switch ring 213. When the rotating rod 29 is driven to rotate, it will not affect the first switch ring 213, while the second switch ring 214 is rotatably provided on the first switch ring 213. The first switch ring 213 and the second switch ring 214 are both used to close the internal space of the rotating rod 29. When the second switch ring 214 is driven to rotate so that the two docking grooves 215 are aligned, the internal channel of the rotating rod 29 is opened, and when the two docking grooves 215 are staggered, the internal channel of the rotating rod 29 is closed. In the closed state, the raw material cannot be transported to the barrier net cylinder 210 through the feed pipe 13, and the liquid medium in the inner sleeve 27 cannot flow back to the rotating rod 29 too much. The rotation method of the second switch ring 214 is to start the second drive motor 217 to drive the connecting rod 216 to rotate, and the second switch ring 214 is driven by the connecting rod 216 to rotate to control the alignment or stagger of the two docking grooves 215;
[0075] After the entire carbonization work is completed, the forward rotation of the first drive motor 21 is stopped, and the first drive motor 21 is reversed, thereby driving the outer sleeve 26 to rotate, and the closing portion 220 of the outer sleeve 26 is aligned with the first opening portion 218 of the inner sleeve 27 again, thereby closing the channel between the inner sleeve 27 and the carbonization zone 11, so that the liquid medium in the carbonization zone 11 cannot enter the inner sleeve 27. At this time, the electric control valve in the delivery pipe 17 is opened, and the mixture of the liquid medium and the raw material in the inner sleeve 27 enters the activation zone 12 through the delivery pipe 17 for subsequent activation work. In this step, the inner sleeve 27 is restored to a state without raw materials and liquid medium, so as to restart the next round of carbonization work. When the channel between the carbonization zone 11 and the inner sleeve 27 is closed, the first drive motor 21 can be rotated forward again to rotate the stirring rod 211 to generate vortexes, thereby accelerating the process of the liquid medium and raw materials entering the delivery pipe 17.
[0076] Embodiment 2
[0077] like Figures 7 - 9 As shown, this embodiment further includes the following structure on the basis of the first embodiment: the activation furnace based on the liquid phase carbonization technology also includes a permeation assembly, the permeation assembly includes a linear motion mechanism and an extrusion block 39, the extrusion block 39 is located in the inner sleeve 27, and the outer peripheral surface of the extrusion block 39 is in contact with the inner wall of the inner sleeve 27, the linear motion mechanism is connected to the extrusion block 39 to drive the extrusion block 39 to reciprocate longitudinally to generate pressure on the liquid medium in the inner sleeve 27, so that the liquid medium accelerates to penetrate into the raw material;
[0078] The outer sleeve 26 is also provided with a restricting portion 35 which is a plurality of fine holes. The outer sleeve 26 is adapted to be driven to rotate so that the restricting portion 35 is aligned with the first opening portion 218 on the inner sleeve 27. When the extrusion block 39 is driven to move downward, pressure is generated on the liquid medium in the inner sleeve 27, and part of the liquid medium is discharged to the outside of the outer sleeve 26 through the fine holes. When the extrusion block 39 is driven to move upward, part of the liquid medium outside the outer sleeve 26 is drawn into the inner sleeve 27 through the fine holes to accelerate contact with the raw material.
[0079] As Figure 8 shown, the linear movement mechanism includes a reciprocating lead screw 36 which is hollow. The reciprocating lead screw 36 is fixedly sleeved outside the rotating rod 29. The part of the rotating rod 29 not wrapped by the reciprocating lead screw 36 is a cylindrical portion 37. The extrusion block 39 is assembled outside the reciprocating lead screw 36. The reciprocating lead screw 36 is adapted to be driven to rotate following the rotating rod 29, thereby driving the extrusion block 39 to linearly reciprocate along the axis direction of the reciprocating lead screw 36;
[0080] A guide rod 38 is fixedly arranged in the inner sleeve 27. A guide groove corresponding to the guide rod 38 is formed in the extrusion block 39. The guide rod 38 is located in the guide groove, and the extrusion block 39 slides outside the guide rod 38 when moving.
[0081] As Figure 8 shown, a fixing ring 310 is fixedly arranged in the inner sleeve 27. The fixing ring 310 is coaxially arranged with the rotating rod 29. A protective ring 312 is slidably arranged outside the cylindrical portion 37. The inner wall of the protective ring 312 is in contact with the outer peripheral surface of the cylindrical portion 37;
[0082] A spring 311 is arranged between the protective ring 312 and the fixing ring 310. The spring 311 is movably sleeved outside the cylindrical portion 37. When the extrusion block 39 is driven to move downward to extrude the liquid medium, it contacts the protective ring 312 and extrudes the protective ring 312, causing the protective ring 312 to move downward, thereby compressing the spring 311. The protective ring 312 is adapted to prevent the liquid medium from flowing into the gap between the extrusion block 39 and the reciprocating lead screw 36 when contacting the extrusion block 39.
[0083] The assembly method between the extrusion block 39 and the reciprocating lead screw 36 can be: a slider is arranged on the extrusion block 39, and the slider is arranged in the spiral groove of the reciprocating lead screw 36. The rotation of the reciprocating lead screw 36 causes the spiral groove to push the slider to move linearly, thereby driving the extrusion block 39 to reciprocate. The specific principle of the reciprocating lead screw 36 driving the extrusion block 39 to move linearly and other assembly methods are all prior arts and will not be elaborated here too much.
[0084] The working principle of this embodiment is as follows:
[0085] The purpose of the liquid penetrating into the interior of the raw material is to avoid a large difference in the degree of carbonization inside and outside. Moreover, the capillary condensation behavior of the liquid medium in the pore diameters of different raw materials directly affects the final pore distribution. To prevent the process of the liquid medium penetrating into the interior of the raw material from being too slow when carbonization work is carried out under the wrapping of the liquid medium, an extrusion block 39 is provided. The extrusion block 39 accelerates the penetration speed of the liquid medium by reciprocating longitudinally in the inner sleeve 27;
[0086] There are prerequisite conditions for the process of the extrusion block 39 extruding and then sucking the liquid medium in the inner sleeve 27. In this embodiment, a restricting part 35 is also provided on the outer sleeve 26. The restricting part 35 is a number of fine holes. It is necessary to start the first driving motor 21 to reverse and align the restricting part 35 of the outer sleeve 26 with the first opening part 218 of the inner sleeve 27. If the inner sleeve 27 is in a closed state, since the liquid medium cannot be compressed, the internal pressure of the inner sleeve 27 will rise rapidly, damaging the structures of the inner sleeve 27 and the raw material;
[0087] The linear reciprocating motion of the extrusion block 39 is driven by a reciprocating lead screw 36 outside the rotating rod 29. When the rotating rod 29 is driven to rotate by the first driving motor 21, the reciprocating lead screw 36 outside it rotates synchronously. When the reciprocating lead screw 36 rotates, it drives the extrusion block 39 to perform linear reciprocating motion. When the extrusion block 39 is driven to move downward, it applies pressure to the liquid medium in the inner sleeve 27. The fine holes serve as restricted pressure relief channels, allowing a small amount of the liquid medium to be slowly discharged outside the outer sleeve 26 during the extrusion process, controlling the pressure peak within a safe range, and at the same time retaining most of the pressure for extruding the liquid medium to penetrate the raw material. By reciprocatingly extruding the liquid medium in this way, the effect of accelerating penetration is achieved. It should be noted that the setting of the fine holes will not cause the extrusion block 39 to be unable to apply pressure to the liquid medium. The downward pressing speed of the extrusion block 39 is greater than the liquid drainage speed of the fine holes, and the drainage speed is determined by the pore diameter and the liquid viscosity, so that the pressure inside the inner sleeve 27 is still significantly higher than the outside of the outer sleeve 26 in a short time. That is, when the extrusion block 39 presses downward, an instantaneous high pressure is formed inside the inner sleeve 27, creating a pressure difference with the low pressure inside the pores of the raw material itself, forcing the liquid to quickly enter the pores;
[0088] When the extrusion block 39 moves upward, part of the liquid medium located in the carbonization zone 11 is pumped into the inner sleeve 27 through the fine holes. The pumped liquid medium is in a flowing state to wash the raw materials, further avoiding the agglomeration of the raw materials. At the same time, the residual impurities or reaction by-products on the surface of the raw materials can be washed away to avoid the blockage of pores. The internal pores of the raw materials often hinder the penetration of the liquid medium due to gas residues. The periodic pumping and pressing of the extrusion block 39 generate pressure fluctuations, and the gas is extruded from the pores through the "pumping effect", and the liquid medium is introduced to fill the pores during the suction stage, significantly reducing the negative impact of cavitation on penetration. Since both the stirring rod 211 and the reciprocating screw rod 36 are driven by the rotation of the rotating rod 29, in this embodiment, the pumping and pressing work and the generation of the eddy current will work together. The centrifugal force generated by the eddy current disperses the raw materials, while the pressure fluctuations of the extrusion block 39 can perform directional penetration for the internal pores of individual raw materials. The two form a dual cooperation of macroscopic dispersion and microscopic penetration, that is, the mechanical disturbance of the stirring rod 211 can tear off the attached bubbles or impurities on the surface of the raw materials, exposing more internal pore channels and creating a physical path for the penetration of the liquid medium;
[0089] To prevent the extrusion block 39 from rotating in the inner sleeve 27 under the drive of the reciprocating screw rod 36 and thus unable to move linearly back and forth normally, a guide rod 38 is provided. During the longitudinal movement of the extrusion block 39, it will slide outside the guide rod 38, and the guide rod 38 can limit the self-rotation of the extrusion block 39;
[0090] To prevent part of the liquid medium from flowing into the assembly gap between the extrusion block 39 and the reciprocating screw rod 36 during the process of the extrusion block 39 extruding the liquid medium, a protective ring 312 is provided. When the extrusion block 39 moves downward, before contacting the liquid medium, the end face at the assembly gap abuts against the protective ring 312, and the protective ring 312 plays a role in blocking the assembly gap. The continuous downward movement of the extrusion block 39 will push the protective ring 312 to move synchronously, and the spring 311 will be compressed during this process. After the work of extruding the liquid medium is completed, when the extrusion block 39 moves upward, the spring 311 will reset synchronously and drive the protective ring 312 to reset. Further, a sealing gasket can be provided between the protective ring 312 and the cylindrical part 37 of the rotating rod 29 to increase the protection effect, but it is necessary to ensure that while improving the sealing protection, the protective ring 312 can move normally;
[0091] It should be noted that in this embodiment, due to the addition of the extrusion block 39, during the discharging process of the inner sleeve 27, in order to ensure that the inner sleeve 27 is empty after discharging, the inner sleeve 27 needs to be in a closed state. In the closed state, the extrusion work of the extrusion block 39 will damage the inner sleeve 27 and the raw materials. Therefore, in this case, when discharging the raw materials and the liquid medium in the inner sleeve 27 into the conveying pipe 17, the rotation of the stirring rod 211 cannot be started synchronously. The stirring rod 211 and the extrusion block 39 both stop working. At the same time, during the entire working process of the extrusion block 39, the internal space of the rotating rod 29 needs to be closed by the first switch ring 213 and the second switch ring 214 to prevent the liquid medium and the raw materials from flowing into the discharge port 212.
[0092] Embodiment Three
[0093] As Figures 13 - 18 shown, on the basis of Embodiment One, this embodiment further includes the following structure: a conveying pipe 17 is provided at the bottom of the inner sleeve 27, an electric control valve is provided on the conveying pipe 17, the outlet end of the conveying pipe 17 extends into the activation area 12, a support ring 42 is fixedly provided in the activation area 12, a barrier mesh plate 41 is provided on the support ring 42, the outlet end of the conveying pipe 17 is located below the barrier mesh plate 41, and the barrier mesh plate 41 is adapted to prevent the carbonized raw materials discharged through the conveying pipe 17 from floating on the surface of the liquid medium;
[0094] A first air inlet ring 44 is provided outside the activation furnace, the first air inlet ring 44 is connected to the air inlet pipe 16, a second air inlet ring 43 is provided in the support ring 42, and an air inlet opening penetrating through itself is provided on the activation furnace. The air inlet opening is adapted to introduce the gas activator in the first air inlet ring 44 into the second air inlet ring 43;
[0095] Below the barrier mesh plate 41, an air delivery rod 410 corresponding to the conveying pipe 17 is provided. The air delivery rod 410 is hollow, the air delivery rod 410 is rotatably installed on the second air inlet ring 43, and the air delivery rod 410 and the second air inlet ring 43 are connected through a rotary seal. An air delivery roller 411 is connected to the air delivery rod 410. An air inlet channel 414 is provided in the air delivery roller 411. The air inlet channel 414 is communicated with the inner cavity of the air delivery rod 410. The inner cavity of the air delivery rod 410 is communicated with the inside of the second air inlet ring 43. A plurality of air holes 413 penetrating through itself are provided on the air delivery roller 411. The air holes 413 are communicated with the air inlet channel 414. A plurality of material holes 412 penetrating through itself are provided on the air delivery roller 411. The material holes 412 are not communicated with the air inlet channel 414;
[0096] A rotating mechanism is provided inside the support ring 42. The rotating mechanism is connected to the gas delivery rod 410 and is adapted to drive the gas delivery roller 411 to rotate. When the gas delivery roller 411 is driven to rotate, it drives the surrounding carbonized raw materials to move, enabling the carbonized raw materials to quickly contact the gas activator. The material holes 412 are adapted to bring some of the carbonized raw materials into the gas delivery roller 411 when the gas delivery roller 411 rotates, so as to avoid the accumulation of carbonized raw materials.
[0097] As Figures 14 - 15 shown, the rotating mechanism includes a third drive motor 45, a drive gear 46, an external gear disk 47, a driving bevel gear 48, and a driven bevel gear 49;
[0098] The third drive motor 45 is installed on the activation furnace. The drive gear 46 is rotatably installed inside the support ring 42. The output end of the third drive motor 45 is connected to the drive gear 46. The external gear disk 47 is rotatably installed inside the support ring 42. The external gear disk 47 meshes with the drive gear 46. The driving bevel gear 48 is fixedly arranged on the external gear disk 47. The driven bevel gear 49 is fixedly sleeved outside the gas delivery rod 410. The driving bevel gear 48 meshes with the driven bevel gear 49.
[0099] The working principle of this embodiment is as follows:
[0100] When the raw materials complete the carbonization work in the carbonization zone 11, they will enter the activation zone 12 through the delivery pipe 17 together with the liquid medium for activation work. The outlet end of the delivery pipe 17 is located below the barrier mesh plate 41. Therefore, after the liquid medium and the raw materials are discharged, the density of the carbonized raw materials further decreases, and they will not float on the surface of the liquid medium due to the large density of the liquid medium. This enables the raw materials to be wrapped by the liquid medium during the activation stage, avoiding the problems of overheating at the edges and underheating inside when the exposed part of the raw materials directly contacts the high-temperature gas activator, and avoiding pore fusion and incomplete activation in the core area;
[0101] The gas activator is directly introduced into the interior of the liquid medium. After being dissolved or dispersed in the liquid medium, it reacts with the carbonized raw materials to complete the activation work. The steps of introducing the gas activator into the liquid medium are as follows: The activator enters the first intake ring 44 through the intake pipe 16, then passes through the activation furnace housing and enters the second intake ring 43. The activator enters the interior of the gas delivery rod 410 in the second intake ring 43 and finally is discharged into the liquid medium through the intake channel 414 in the gas delivery roller 411;
[0102] The gas delivery rod 410 is connected to the second intake ring 43 through a rotating connector. The gas delivery rod 410 is rotatably arranged. When the gas delivery rod 410 rotates, it drives the gas delivery roller 411 to rotate. The gas delivery roller 411 is located below the corresponding delivery pipe 17. Therefore, the discharged raw materials will be between the gas delivery roller 411 and the barrier mesh plate 41. In this case, to avoid the reduction of the contact area with the activator caused by the accumulation of raw materials, material holes 412 are provided on the gas delivery roller 411. When the gas delivery roller 411 is driven to rotate, it will drive the liquid medium to flow, thereby promoting the dispersion of the raw materials. The material holes 412 are not communicated with the intake channel 414. Under the continuous rotation of the gas delivery roller 411, some raw materials will enter the inner ring of the gas delivery roller 411 through the material holes 412 during the dispersion process. This setting further improves the dispersion effect. The air holes 413 on the gas delivery roller 411 that are communicated with the intake channel 414 can simultaneously deliver the activator to the inner and outer rings of the gas delivery roller 411, ensuring that the raw materials located in both the inner and outer rings can obtain sufficient activator;
[0103] When the gas delivery roller 411 rotates, the gas activator is sprayed into the liquid medium in the form of microbubbles through the air holes 413 from the inner and outer rings of the gas delivery roller 411. The bubbles diffuse outward under the action of the rotational centrifugal force, forming a uniformly distributed gas-liquid mixing system, avoiding the aggregation and escape of gas on the liquid surface, ensuring the efficient dissolution and penetration of the activator through the liquid medium layer. At the same time, nozzles can also be provided in the air holes 413 to improve the spraying effect. The wrapping of the liquid medium can prevent the oxidation or coking of the raw materials at high temperatures. At the same time, as a mass transfer medium, the liquid medium is driven to flow by the rotation of the gas delivery roller 411, continuously delivering the dissolved gas activator to the surface of the raw materials to achieve better contact;
[0104] Since the carbonized raw materials tend to float in the liquid medium, some of the raw materials are located between the outer circumference of the gas transmission roller 411 and the barrier mesh plate 41, and some are located within the inner circumference of the gas transmission roller 411 and adjacent to the inner wall of the gas transmission roller 411. With this arrangement, the raw materials are always adjacent to the gas transmission roller 411, reducing the distance between the raw materials and the pores 413 for discharging the activating agent, enabling the activating agent to contact the raw materials without having to penetrate through a thick liquid medium layer, and further improving the activation efficiency. It should be noted that when the gas transmission roller 411 rotates to disperse the raw materials, some of the raw materials will also be dispersed to positions farther away from the gas transmission roller 411. Therefore, multiple gas transmission rollers 411 can be set to rotate synchronously to avoid this problem. As for the raw materials entering the inner circumference of the gas transmission roller 411 through the material holes 412, some of the raw materials will leave through the material holes 412 under the continuous rotation of the gas transmission roller 411, while some will be blocked by the solid parts other than the material holes 412 and remain in the inner circumference. Finally, after the activation is completed, the valve in the discharge pipe 15 can be opened to discharge the raw materials and the liquid medium together. The raw materials located within the inner circumference of the gas outlet roller can also leave through the material holes 412. At this time, the gas transmission roller 411 is stationary. If some raw materials stop at the solid parts within the inner circumference of the gas transmission roller 411, the rotation of the gas transmission roller 411 can be used to prompt the raw materials to leave;
[0105] The rotation of the gas transmission rod 410 needs to start the third drive motor 45 to drive the drive gear 46 to rotate. The drive gear 46 drives the outer gear disk 47 to rotate through meshing with the outer gear disk 47. The outer gear disk 47 drives the driving bevel gear 48 to rotate when rotating, and the driving bevel gear 48 drives the driven bevel gear 49 to rotate through meshing with the driven bevel gear 49. Finally, the driven bevel gear 49 is used to drive the gas transmission rod 410 and the gas transmission roller 411 to rotate. It should be noted that the second air inlet ring 43 and all the components driven to rotate are located within the support ring 42, which can avoid contact with the liquid medium. At the same time, a rotary seal treatment is performed between the output shaft of the third drive motor 45 located outside and the support ring 42;
[0106] The height positions of all the structures within the barrier mesh plate 41 and the support ring 42 need to be adjusted to ensure that after the conveying pipe 17 allows all the carbonized raw materials and the liquid medium discharged together to enter the activation area 12, the liquid level height of the liquid medium is aligned with the position of the barrier mesh plate 41, and the raw materials are entirely submerged in the liquid medium, avoiding too high a liquid level height, which may cause the liquid medium and the raw materials in the conveying pipe 17 to not be completely discharged. Since the total amount of the raw materials and the liquid medium in the inner sleeve 27 is fixed, the liquid level height after all the raw materials and the liquid medium enter the activation area 12 can be obtained by calculating the total amount, and the position of the barrier mesh plate 41 is adjusted based on this liquid level height.
[0107] The specific embodiments described above further elaborate on the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention. It should be understood that the above description is only for the specific embodiments of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims
1. An activation furnace based on liquid-phase carbonization technology, characterized in that, Comprising: A carbonization zone (11) and an activation zone (12), an inlet pipe (14) and at least one feed pipe (13) are arranged on the carbonization zone (11), a discharge pipe (15) and an inlet gas pipe (16) are arranged on the activation zone (12), and heating devices are arranged on both the carbonization zone (11) and the activation zone (12); A wrapping assembly corresponding to the feed pipe (13), the wrapping assembly includes an inner sleeve (27) fixed in the carbonization zone (11), an outer sleeve (26) rotatably arranged outside the inner sleeve (27), and a hollow rotating rod (29), the outer peripheral surface of the inner sleeve (27) is in contact with the inner wall of the outer sleeve (26), the rotating rod (29) is arranged in the inner sleeve (27) and communicates with the feed pipe (13), the outer sleeve (26) is provided with a second opening part (219) and a closing part (220), and the inner sleeve (27) is provided with a first opening part (218); A barrier mesh cylinder (210) arranged in the inner sleeve (27), the barrier mesh cylinder (210) is fixedly sleeved outside the rotating rod (29), a discharge port (212) is arranged on the part of the rotating rod (29) located in the barrier mesh cylinder (210) for the raw material to enter the barrier mesh cylinder (210), and the barrier mesh cylinder (210) is adapted to prevent the raw material from floating on the surface of the liquid medium; A driving mechanism, the driving mechanism is connected to the outer sleeve (26) to be adapted to drive the outer sleeve (26) to rotate, so that the second opening part (219) or the closing part (220) is aligned with the first opening part (218) to control the opening or closing of the channel for the liquid medium in the carbonization zone (11) to enter the inner sleeve (27) and contact the raw material.
2. The activation furnace based on the liquid-phase carbonization technology according to claim 1, characterized in that The driving mechanism includes a first driving motor (21), a driving shaft (22), a first one-way bearing (23), a rotating shaft (24), a first driving gear (25), and a first driven gear (28); The first driving motor (21) is installed on the activation furnace, the driving shaft (22) is connected to the output end of the first driving motor (21), the rotating shaft (24) is rotatably installed in the carbonization zone (11), the rotating shaft (24) is connected to the driving shaft (22) through the first one-way bearing (23), the first driving gear (25) is fixedly sleeved outside the rotating shaft (24), the first driven gear (28) is fixedly sleeved outside the outer sleeve (26), the first driving gear (25) meshes with the first driven gear (28), and the driving shaft (22) is adapted to be driven to rotate reversely to drive the rotating shaft (24) to rotate, and further drive the outer sleeve (26) to rotate.
3. The activation furnace based on the liquid-phase carbonization technology according to claim 2, characterized in that, It further includes a rotating mechanism, the rotating rod (29) is rotatably arranged in the inner sleeve (27), the rotating mechanism is connected to the rotating rod (29) to be adapted to drive the barrier mesh cylinder (210) to rotate in the inner sleeve (27), at least one stirring rod (211) is arranged on the outer peripheral surface of the barrier mesh cylinder (210), and the stirring rod (211) is adapted to be driven to rotate to generate a vortex in the mixture of the liquid medium and the raw material to promote the wrapping of the liquid medium around the raw material; A rotary seal is provided between the rotary rod (29) and the feed pipe (13).
4. The activation furnace based on the liquid-phase carbonization technology according to claim 3, wherein The rotating mechanism includes a linkage rod (32), a second one-way bearing (31), a second driving gear (33), and a second driven gear (34). The linkage rod (32) is rotatably installed in the carbonization zone (11). The drive shaft (22) is connected to the linkage rod (32) through the second one-way bearing (31). The second driving gear (33) is fixedly sleeved outside the linkage rod (32). The second driven gear (34) is fixedly sleeved outside the rotary rod (29). The second driving gear (33) meshes with the second driven gear (34). The drive shaft (22) is adapted to be driven to rotate forward to drive the rotary rod (29) to rotate.
5. The activation furnace based on the liquid-phase carbonization technology according to claim 3 or 4, characterized in that A second driving motor (217) is installed on the feed pipe (13). A first switch ring (213) is fixedly arranged in the inner sleeve (27). A through groove communicating with the discharge port (212) is formed in the first switch ring (213). The first switch ring (213) is located inside the rotary rod (29). A second switch ring (214) is rotatably installed on the first switch ring (213). A connecting rod (216) is connected to the second switch ring (214). The connecting rod (216) is connected to the output end of the second driving motor (217). Docking grooves (215) are formed in both the first switch ring (213) and the second switch ring (214). The second driving motor (217) is adapted to drive the second switch ring (214) to rotate to control the alignment or misalignment of the docking grooves (215) on the first switch ring (213) and the second switch ring (214), thereby controlling the opening or closing of the channel between the discharge port (212) and the feed pipe (13).
6. The activation furnace based on the liquid-phase carbonization technology according to claim 5, wherein It further includes a penetration assembly. The penetration assembly includes a linear movement mechanism and a pressing block (39). The pressing block (39) is located inside the inner sleeve (27), and the outer peripheral surface of the pressing block (39) is in contact with the inner wall of the inner sleeve (27). The linear movement mechanism is connected to the pressing block (39) to drive the pressing block (39) to reciprocate longitudinally to generate pressure on the liquid medium in the inner sleeve (27), so as to accelerate the penetration of the liquid medium into the raw material. A limiting part (35) is further provided on the outer sleeve (26). The limiting part (35) is a number of fine holes. The outer sleeve (26) is adapted to be driven to rotate to align the limiting part (35) with the first opening part (218) on the inner sleeve (27). When the pressing block (39) is driven to move downward, pressure is generated on the liquid medium in the inner sleeve (27), and part of the liquid medium is discharged to the outside of the outer sleeve (26) through the fine holes. When the pressing block (39) is driven to move upward, part of the liquid medium outside the outer sleeve (26) is sucked into the inner sleeve (27) through the fine holes to accelerate the contact with the raw material.
7. The activation furnace based on the liquid-phase carbonization technology according to claim 6, wherein The linear movement mechanism includes a reciprocating lead screw (36). The reciprocating lead screw (36) is hollow and fixedly sleeved outside the rotating rod (29). The part of the rotating rod (29) not wrapped by the reciprocating lead screw (36) is a cylindrical part (37). The extrusion block (39) is assembled outside the reciprocating lead screw (36). The reciprocating lead screw (36) is adapted to be driven to rotate following the rotating rod (29), thereby driving the extrusion block (39) to perform a linear reciprocating motion along the axis direction of the reciprocating lead screw (36). A guide rod (38) is fixedly arranged in the inner sleeve (27). A guide groove corresponding to the guide rod (38) is formed in the extrusion block (39). The guide rod (38) is located in the guide groove. When the extrusion block (39) moves, it slides outside the guide rod (38).
8. The activation furnace based on the liquid-phase carbonization technology according to claim 7, wherein A fixing ring (310) is fixedly arranged in the inner sleeve (27). The fixing ring (310) is coaxially arranged with the rotating rod (29). A protective ring (312) is slidably arranged outside the cylindrical part (37). The inner wall of the protective ring (312) is in contact with the outer peripheral surface of the cylindrical part (37). A spring (311) is arranged between the protective ring (312) and the fixing ring (310). The spring (311) is movably sleeved outside the cylindrical part (37). When the extrusion block (39) is driven to move downward to extrude the liquid medium, it contacts the protective ring (312) and extrudes the protective ring (312), causing the protective ring (312) to move downward, thereby compressing the spring (311). When the protective ring (312) contacts the extrusion block (39), it is adapted to prevent the liquid medium from flowing into the gap between the extrusion block (39) and the reciprocating lead screw (36).
9. The activation furnace based on the liquid-phase carbonization technology according to claim 1 or 6, characterized in that, A delivery pipe (17) is arranged at the bottom of the inner sleeve (27). An electric control valve is arranged on the delivery pipe (17). The outlet end of the delivery pipe (17) extends into the activation area (12). A support ring (42) is fixedly arranged in the activation area (12). A barrier mesh plate (41) is arranged on the support ring (42). The outlet end of the delivery pipe (17) is located below the barrier mesh plate (41). The barrier mesh plate (41) is adapted to prevent the carbonized raw materials discharged through the delivery pipe (17) from floating on the surface of the liquid medium. A first air inlet ring (44) is arranged outside the activation furnace. The first air inlet ring (44) is connected to the air inlet pipe (16). A second air inlet ring (43) is arranged in the support ring (42). An air inlet opening penetrating through the activation furnace itself is provided. The air inlet opening is adapted to introduce the gas activator in the first air inlet ring (44) into the second air inlet ring (43). Below the barrier mesh plate (41), there is a gas delivery rod (410) corresponding to the delivery pipe (17). The gas delivery rod (410) is hollow. The gas delivery rod (410) is rotatably installed on the second intake ring (43). The gas delivery rod (410) and the second intake ring (43) are connected by a rotary seal. A gas delivery roller (411) is connected to the gas delivery rod (410). An intake channel (414) is formed in the gas delivery roller (411). The intake channel (414) communicates with the inner cavity of the gas delivery rod (410). The inner cavity of the gas delivery rod (410) communicates with the inside of the second intake ring (43). A number of air holes (413) penetrating through itself are formed in the gas delivery roller (411). The air holes (413) communicate with the intake channel (414). A number of material holes (412) penetrating through itself are formed in the gas delivery roller (411). The material holes (412) do not communicate with the intake channel (414). A rotating mechanism is arranged in the support ring (42). The rotating mechanism is connected to the gas delivery rod (410) to drive the gas delivery roller (411) to rotate. When the gas delivery roller (411) is driven to rotate, it drives the surrounding carbonized raw materials to move, so that the carbonized raw materials can quickly contact with the gas activator. The material holes (412) are adapted to bring some carbonized raw materials into the gas delivery roller (411) when the gas delivery roller (411) rotates, so as to avoid the accumulation of carbonized raw materials.
10. The activation furnace based on the liquid-phase carbonization technology according to claim 9, characterized in that, The rotating mechanism includes a third driving motor (45), a driving gear (46), an external tooth disc (47), a driving bevel gear (48) and a driven bevel gear (49). The third driving motor (45) is installed on the activation furnace. The driving gear (46) is rotatably installed in the support ring (42). The output end of the third driving motor (45) is connected to the driving gear (46). The external tooth disc (47) is rotatably installed in the support ring (42). The external tooth disc (47) meshes with the driving gear (46). The driving bevel gear (48) is fixedly arranged on the external tooth disc (47). The driven bevel gear (49) is fixedly sleeved on the outside of the gas delivery rod (410). The driving bevel gear (48) meshes with the driven bevel gear (49).
Citation Information
Patent Citations
An activation device for producing activated carbon
CN118637620B