Wood activated carbon vertical carbonization furnace and method

Abstract

The invention discloses a wood activated carbon vertical carbonization furnace and method, and relates to the technical field of activated carbon preparation, the wood activated carbon vertical carbonization furnace comprises a combustion furnace, a carbonization furnace shell, a sealing cover, a heat conduction mechanism and an inner container, a material stirring mechanism is arranged in the inner container, a water removal mechanism is arranged in the sealing cover, and a driving mechanism is arranged below the combustion furnace; the combustion furnace is fixedly mounted below the carbonization furnace shell, the inner container is fixedly mounted in the carbonization furnace shell, and the sealing cover is detachably mounted at the top of the carbonization furnace shell. The carbonization furnace has the advantages of being good in heating uniformity, good in carbonization effect and efficient in water removal, and the problems that due to uneven heating of a traditional carbonization furnace, the quality of activated carbon is unstable, the consistency of the carbonization degree is affected by insufficient material stirring, the quality of finished products is damaged due to poor water removal, and operation and maintenance are complex and tedious are solved.

Description

Technical Field

[0001] The invention relates to the technical field of activated carbon preparation, in particular to a vertical carbonization furnace and a method for preparing wood activated carbon. Background Art

[0002] Activated carbon is a porous material with a highly developed pore structure, which is widely used in water treatment, air purification, medicine, food processing and other fields. Traditionally, the production process of activated carbon mainly includes the steps of raw material selection, crushing, drying, carbonization, activation, etc. Among them, carbonization is the process of heating biomass raw materials such as wood to a certain temperature under oxygen-deficient conditions to decompose them into carbon and volatiles. This process has a crucial impact on the performance of the final activated carbon product.

[0003] There are various carbonization equipment on the market, but the following problems are common. Many devices use simple heating methods, such as direct flame heating or electric heating, which leads to uneven temperature distribution in the furnace, thus affecting the carbonization effect. Traditional carbonization furnaces often lack an effective material turning mechanism, which causes uneven heating of the material, overheating in some areas and insufficient carbonization in other areas. In a high temperature environment, sealing covers and other parts are prone to condensation. If this water drips onto the material being carbonized, it will cause local moisture, affecting the carbonization quality and consistency of the finished product. Therefore, a vertical wood activated carbon carbonization furnace and method are needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a vertical carbonization furnace and method for wood activated carbon, which has the advantages of good heating uniformity, good carbonization effect and efficient water removal, and solves the problems of uneven heating in traditional carbonization furnaces resulting in unstable quality of activated carbon, insufficient material selection affecting the consistency of carbonization degree, poor water removal resulting in damage to the quality of finished products, and complicated and cumbersome operation and maintenance.

[0005] To achieve the above object, the present invention provides the following technical solution: a material-pickling mechanism is provided in the inner container, a water-removing mechanism is provided in the sealing cover, and a driving mechanism is provided below the combustion furnace;

[0006] The combustion furnace is fixedly installed below the carbonization furnace shell, the inner tank is fixedly installed in the carbonization furnace shell, the sealing cover is detachably installed on the top of the carbonization furnace shell, a buckle is provided on the top of the carbonization furnace shell for fixing the sealing cover, a side end surface of the carbonization furnace shell is provided with an exhaust port for vacuuming, and a hook is provided on the top of the sealing cover;

[0007] The material-dispensing mechanism comprises a plurality of material-containing frames and a material-dispensing rack, wherein the material-containing frames are installed in the inner container and are rotatably connected thereto, and the material-dispensing rack is installed in the inner container and is slidably connected thereto;

[0008] The heat conduction mechanism comprises a heat conduction pipe and a circulation piston pump, wherein the heat conduction pipe is spirally coiled on the outer end surface of the inner tank, and the circulation piston pump is installed on the heat conduction pipe;

[0009] The water removal mechanism includes a scraping ring, a scraper and a guide plate, wherein the scraping ring is installed in the sealing cover and is rotatably connected to the sealing cover through a bearing, the scraper is fixedly installed on the upper end surface of the scraping ring, and the guide plate is fixedly installed on the side of the scraper;

[0010] The driving mechanism comprises a driving motor, a driving shaft and a driving roller. The driving shaft is driven by the heat conducting mechanism, and the driving roller is driven by the material shifting mechanism and the water removing mechanism.

[0011] As a preferred embodiment of the vertical wood activated carbon carbonization furnace of the present invention, the circulating piston pump includes a first sleeve, a first spring and a first piston, the first piston is inserted into the first sleeve and is elastically slidably connected with the first sleeve through a spring, a liquid inlet and a liquid discharge port are provided on the side of the first sleeve, the end of the heat conduction pipe is connected with the liquid inlet and the liquid discharge port to form a circulating pipeline, a first one-way valve is provided near the liquid inlet end of the heat conduction pipe, a second one-way valve is provided near the liquid discharge end of the heat conduction pipe, and the heat conduction pipe is filled with a heat transfer medium.

[0012] As a preferred embodiment of the vertical wood activated carbon carbonization furnace of the present invention, the drive shaft is fixedly mounted on the drive shaft of the drive motor, a cam matched with a circulating piston pump is fixedly mounted on the drive shaft, and a side end surface of the cam is connected to the first piston in sliding contact.

[0013] As a preferred vertical carbonization furnace for wood activated carbon of the present invention, the driving roller is fixedly installed on the top of the driving shaft, the sides of the driving roller are evenly provided with ridges, the center of the material holding frame is provided with a first key hole that slides with the driving roller, the side end surface of the inner tank and the side end surface of the material holding frame are conical structures, the bottom of the material holding frame is provided with air holes, the air holes are a honeycomb structure, and the outer end surface of the material holding frame is provided with a bull's eye ball.

[0014] As a preferred vertical carbonization furnace for wood activated carbon of the present invention, the side end faces of the inner tank are evenly provided with limiting slide grooves, the side end faces of the material diverter rack are provided with limiting blocks corresponding to the positions of the limiting slide grooves, the lower end face of the material diverter rack is provided with a material diverter plate, the bottom upper end face of the material holding frame is a conical structure, the material diverter plate is a spiral structure, the side face of the material diverter plate is fitted with the inner end face of the side wall of the material holding frame, the material diverter rack corresponds to the material holding frame one by one, and the diameter of the same group of material diverter racks is larger than the top diameter of the material holding frame.

[0015] As a preferred vertical wood activated carbon carbonization furnace of the present invention, the center of the scraping circle is provided with a second key hole cooperating with the driving roller, the scraper is connected in sliding contact with the lower end surface of the sealing cover, the center of the upper end surface of the driving roller is provided with a water collecting trough, and a guide groove facing the water trough is formed between the guide plate and the scraper.

[0016] As a preferred vertical carbonization furnace for wood activated carbon of the present invention, a drainage sleeve is fixedly installed on the lower end surface of the sealing cover, a drainage piston with a sliding connection is arranged in the drainage sleeve, a reciprocating screw rod with a rotation connection is arranged in the drainage sleeve, the drainage piston is sleeved on the reciprocating screw rod and is threadedly connected thereto, a drainage pipe and a suction pipe are arranged at the bottom of the side end surface of the drainage sleeve, a third one-way valve is arranged on the drainage pipe, a fourth one-way valve is arranged on the suction pipe, a transmission shaft cooperating with the driving roller transmission is arranged at the bottom of the reciprocating screw rod, the suction pipe is flush with the bottom of the sump, the drainage extends to the outside of the sealing cover, and a limiting convex strip for limiting the rotation of the drainage piston is arranged in the drainage sleeve.

[0017] As a preferred embodiment of the vertical wood activated carbon carbonization furnace of the present invention, the lower end face of the transmission shaft is provided with a triangular shaft, the upper end face of the bottom of the water collecting trough is provided with a triangular groove matching the triangular shaft, and the bottom of the triangular shaft is a triangular pyramid structure.

[0018] As a preferred vertical wood activated carbon carbonization furnace of the present invention, the combustion furnace comprises a combustion chamber and a furnace door, the furnace door is rotatably connected to the combustion chamber by a hinge, an isolation cylinder is arranged in the combustion chamber, and the isolation cylinder is sleeved on the driving shaft.

[0019] The method of using the vertical carbonization furnace of wood activated carbon includes the following steps:

[0020] Step 1: Loading: Load the crushed wood pieces into each material receiving frame, and then alternately install the material receiving frames and the material shifting racks in the inner tank;

[0021] Step 2: Sealing: fixing the sealing cover on the upper end of the carbonization furnace shell;

[0022] Step 3, preheating, loading the combustion furnace with fuel and igniting it, and directly heating the inner tank and the heat conducting tube through the combustion of the fuel in the combustion furnace;

[0023] Step 4, drive, start the motor, first drive the heat-conducting solution in the heat-conducting mechanism to flow through the driving mechanism, then drive the material-moving mechanism to move the wood pieces to improve the uniformity of heating, and further drive the water removal mechanism to sweep away the water droplets on the inner end surface of the sealing cover.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. In the present invention, the heat-conducting pipe in the heat-conducting mechanism is spirally coiled on the outer end surface of the inner tank. The circulating piston pump is driven by the driving mechanism to circulate the heat-conducting medium in the heat-conducting pipe. Specifically, the driving motor drives the driving shaft to rotate, and the cam on the driving shaft intermittently squeezes the first piston of the circulating piston pump, so that the first piston slides back and forth in the first sleeve, thereby driving the heat-conducting solution in the heat-conducting pipe to circulate. This design can effectively improve the uniformity of heating, ensure that the wood in the inner tank is heated evenly, and is conducive to improving the quality consistency of activated carbon.

[0026] 2. The present invention arranges a material-shifting mechanism in the inner container, the material-holding frame is rotatably connected to the inner container and is driven to rotate by a driving roller, the material-shifting rack is slidably connected to the inner container and is located above the material-holding frame, and the spiral material-shifting plate on its lower end face is in contact with the inner end face of the side wall of the material-holding frame. When working, the material-holding frame rotates, and the material-shifting plate of the material-shifting rack shifts the charcoal particles in the material-holding frame, so that the charcoal particles roll and slide back and forth between the center and the edge of the material-holding frame, so that the charcoal is heated more evenly, which greatly improves the uniformity of wood carbonization, helps to fully carbonize the wood, and improves the yield and quality of activated carbon.

[0027] 3. The present invention can effectively remove condensed water in the sealing cover by arranging a water removal mechanism in the sealing cover. The scraping ring rotates under the drive of the driving roller, and the scraper scrapes the condensed water droplets on the lower end surface of the sealing cover into the guide groove, and then flows into the water collecting tank. At the same time, the drainage sleeve is driven by the driving roller to rotate the reciprocating screw through the transmission shaft, so that the drainage piston slides back and forth up and down along the reciprocating screw to discharge the accumulated water in the water collecting tank in time. In this way, the condensed water on the sealing cover can be prevented from dripping onto the wood surface again, preventing the wood from drying unevenly, thereby ensuring the quality of the activated carbon product, reducing the humidity in the furnace, and improving the carbonization rate.

[0028] 4. The present invention integrates the three functional modules of heat conduction, material turning and water removal into a compact mechanical frame, and coordinates the actions of each part through a set of driving mechanisms. The user only needs to start the driving motor to trigger the linkage operation of the entire system, without having to operate each subsystem separately. This not only simplifies the operating process and reduces the possibility of human errors, but also greatly improves work efficiency. In addition, the design is easy to maintain and reduces downtime, which is of great significance for improving production continuity and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a front cross-sectional view of the present invention;

[0031] Figure 3 is a side sectional view of the present invention;

[0032] Figure 4 It is a schematic diagram of the coordination state between the material-dispensing mechanism and the driving mechanism of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the scraping and sweeping circle of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the material shifting frame of the present invention;

[0035] Figure 7 For the present invention Figure 3 Enlarged view of point A in the middle;

[0036] Figure 8 For the present invention Figure 3 Enlarged view of point B in the middle;

[0037] Fig. 9 It is a schematic diagram of the cooperation state between the heat conduction mechanism and the driving mechanism of the present invention;

[0038] Fig.10 It is a schematic diagram of the matching state of the transmission shaft and the drainage sleeve of the present invention.

[0039] In the figure: 1. carbonization furnace shell; 101. exhaust port; 2. combustion furnace; 201. combustion chamber; 202. isolation tube; 203. furnace door; 3. sealing cover; 301. hook; 302. buckle; 4. liner; 401. limit slide; 5. driving mechanism; 501. driving motor; 502. driving shaft; 5021. cam; 503. driving roller; 5031. water collecting trough; 5032. convex edge; 5033. triangular groove; 6. heat conduction mechanism; 601. heat conduction pipe; 6011. first one-way valve; 6012. second one-way valve; 602. circulating piston pump; 6021. first sleeve; 60211. liquid inlet; 60212. liquid outlet; 602 2. First piston; 6023. Spring; 7. Material dispensing mechanism; 701. Material holding frame; 7011. Air vent; 7012. First key hole; 7013. Bull's eye ball; 702. Material dispensing rack; 7021. Limit block; 7022. Material dispensing plate; 8. Water removal mechanism; 801. Sweeping ring; 802. Scraper; 8021. Guide groove; 803. Guide plate; 804. Drainage sleeve; 8041. Drainage pipe; 8042. Suction pipe; 8043. Third one-way valve; 8044. Fourth one-way valve; 8045. Limiting convex strip; 805. Drainage piston; 806. Transmission shaft; 8061. Reciprocating screw; 8062. Triangular shaft; 807. Second key hole. DETAILED DESCRIPTION

[0040] Example 1

[0041] See also Figure 1-Figure 10, a wood activated carbon vertical carbonization furnace, comprising a combustion furnace 2, a carbonization furnace shell 1, a sealing cover 3 and an inner tank 4, a material-pickling mechanism 7 is arranged in the inner tank 4, a water-removing mechanism 8 is arranged in the sealing cover 3, and a driving mechanism 5 is arranged below the combustion furnace 2;

[0042] The combustion furnace 2 is fixedly installed below the carbonization furnace shell 1, the inner tank 4 is fixedly installed in the carbonization furnace shell 1, the sealing cover 3 is detachably installed on the top of the carbonization furnace shell 1, the top of the carbonization furnace shell 1 is provided with a buckle 302 for fixing the sealing cover 3, the side end surface of the carbonization furnace shell 1 is provided with an exhaust port 101 for vacuuming, and the top of the sealing cover 3 is provided with a hook 301;

[0043] The material-dispensing mechanism 7 includes a plurality of material-containing frames 701 and a material-dispensing rack 702. The material-containing frames 701 are installed in the inner container 4 and are rotatably connected thereto. The material-dispensing rack 702 is installed in the inner container 4 and is slidably connected thereto.

[0044] The heat conduction mechanism 6 includes a heat conduction pipe 601 and a circulation piston pump 602. The heat conduction pipe 601 is spirally wound on the outer end surface of the inner tank 4, and the circulation piston pump 602 is installed on the heat conduction pipe 601.

[0045] The water removal mechanism 8 includes a scraping ring 801, a scraper 802 and a guide plate 803. The scraping ring 801 is installed in the sealing cover 3 and is rotatably connected thereto through a bearing. The scraper 802 is fixedly installed on the upper end surface of the scraping ring 801. The guide plate 803 is fixedly installed on the side of the scraper 802.

[0046] The driving mechanism 5 includes a driving motor 501 , a driving shaft 502 and a driving roller 503 . The driving shaft 502 is driven by the heat conducting mechanism 6 , and the driving roller 503 is driven by the material dispensing mechanism 7 and the water removal mechanism 8 .

[0047] Furthermore, the circulating piston pump 602 includes a first sleeve 6021, a first spring 6023 and a first piston 6022. The first piston 6022 is inserted into the first sleeve 6021 and elastically slidably connected thereto through the spring 6023. A liquid inlet 60211 and a liquid discharge port 60212 are provided on the side of the first sleeve 6021. The end of the heat pipe 601 is connected with the liquid inlet 60211 and the liquid discharge port 60212 to form a circulating pipeline. A first one-way valve 6011 is provided at the end of the heat pipe 601 near the liquid inlet 60211, and a second one-way valve 6012 is provided at the end of the heat pipe 601 near the liquid discharge port 60212. The heat pipe 601 is filled with a heat conducting medium.

[0048] When the first piston 6022 compresses the spring 6023 and slides into the first sleeve 6021, the piston presses the heat-conducting solution in the first sleeve 6021 into the heat-conducting tube 601 through the discharge port 60212. Then, the first piston 6022 rebounds under the resetting action of the spring 6023, and the circulating piston pump 602 draws the heat-conducting solution in the heat-conducting tube 601 through the liquid inlet 60211, thereby making the heat-conducting medium in the heat-conducting tube 601 flow, thereby improving the uniformity of heating. The heat-conducting solution can be high-temperature resistant heat-conducting oil, heat-conducting salt solution or boron nitride nanofluid.

[0049] Furthermore, the drive shaft 502 is fixedly mounted on the drive shaft 502 of the drive motor 501 , and a cam 5021 cooperating with the circulation piston pump 602 is fixedly mounted on the drive shaft 502 , and a side end surface of the cam 5021 is connected to the first piston 6022 in sliding contact.

[0050] When the driving motor 501 drives the driving shaft 502 to rotate, the driving shaft 502 drives the cam 5021 to rotate, so that the cam 5021 intermittently squeezes the first piston 6022. With the cooperation of the cam 5021 and the spring 6023, the first piston 6022 slides back and forth in the first sleeve 6021, thereby driving the heat-conducting solution in the heat-conducting tube 601 to circulate.

[0051] Furthermore, the driving roller 503 is fixedly installed on the top of the driving shaft 502, and the side surfaces of the driving roller 503 are evenly provided with ridges 5032. The center of the material holding frame 701 is provided with a first key hole 7012 that slides with the driving roller 503. The side end surfaces of the inner liner 4 and the side end surfaces of the material holding frame 701 are conical structures. The bottom of the material holding frame 701 is provided with air holes 7011, and the air holes 7011 are honeycomb structures. The outer end surface of the material holding frame 701 is provided with a bull's eye ball 7013.

[0052] When the material holding frames 701 of different sizes are installed on the driving roller 503, the material holding frames 701 will stay at different heights according to the size of their own diameters. The material holding frames 701 with larger diameters will stay at the upper end, and the material holding frames 701 with smaller diameters will stay at the lower end. The convex ridge 5032 cooperates with the first key hole 7012, so that when the driving roller 503 rotates, the material holding frame 701 can be driven to rotate, thereby cooperating with the material shifting rack 702. The friction resistance between the material holding frame 701 and the inner liner 4 is reduced by the bull's eye ball 7013, and the water vapor evaporated from the wood can pass through the air hole 7011 and flow upward.

[0053] Furthermore, the side end faces of the inner tank 4 are evenly provided with limiting slide grooves 401, the side end faces of the material dispensing rack 702 are provided with limiting blocks 7021 corresponding to the positions of the limiting slide grooves 401, the lower end face of the material dispensing rack 702 is provided with a material dispensing plate 7022, the bottom upper end face of the material holding frame 701 is a conical structure, the material dispensing plate 7022 is a spiral structure, the side face of the material dispensing plate 7022 is fitted with the inner end face of the side wall of the material holding frame 701, the material dispensing rack 702 corresponds to the material holding frame 701 one by one, and the diameter of the same group of material dispensing racks 702 is larger than the top diameter of the material holding frame 701.

[0054] The limiting slide groove 401 and the limiting block 7021 cooperate to make the material shifting rack 702 hover above the material holding frame 701, and the material shifting plate 7022 on the lower end surface of the material shifting rack 702 shifts the charcoal particles in the material holding frame 701. Since the bottom surface of the material holding frame 701 is a conical structure, the charcoal particles slide toward the edge of the material holding frame 701. During the rotation process, due to the spiral structure of the material shifting plate 7022, the charcoal particles on the edge slide along the side of the material shifting plate 7022 toward the center of the material holding frame 701, so that the charcoal particles slide back and forth between the center and the edge of the material holding frame 701, so that the charcoal is heated more evenly, thereby improving the uniformity of wood carbonization.

[0055] Furthermore, a second key hole 807 cooperating with the driving roller is provided at the center of the scraping circle 801, the scraper 802 is connected in sliding contact with the lower end surface of the sealing cover 3, a water collecting trough 5031 is provided at the center of the upper end surface of the driving roller 503, and a guide groove 8021 facing the water trough is formed between the guide plate 803 and the scraper 802.

[0056] When the driving roller 503 drives the scraping circle 801 to rotate, the scraper 802 scrapes the lower end surface of the sealing cover 3, scrapes the condensed water droplets on the lower end surface of the sealing cover 3 into the guide groove 8021, and then flows to the water collecting tank 5031 through the guide groove 8021, thereby preventing the condensed water on the sealing cover 3 from dripping onto the wood surface again, causing uneven drying of the wood and affecting the quality of the activated carbon product.

[0057] Furthermore, a drainage sleeve 804 is fixedly installed on the lower end surface of the sealing cover 3, and a slidingly connected drainage piston 805 is arranged in the drainage sleeve 804, and a rotatably connected reciprocating screw 8061 is arranged in the drainage sleeve 804. The drainage piston 805 is sleeved on the reciprocating screw 8061 and is threadedly connected to it. A drainage pipe 8041 and a suction pipe 8042 are arranged at the bottom of the side end surface of the drainage sleeve 804, a third one-way valve 8043 is arranged on the drainage pipe 8041, and a fourth one-way valve 8044 is arranged on the suction pipe 8042. A transmission shaft 806 that cooperates with the drive roller 503 is arranged at the bottom of the reciprocating screw 8061, and the suction pipe 8042 is flush with the bottom of the water collecting tank 5031. The drainage pipe 8041 is extended to the outside of the sealing cover 3, and a limiting convex strip 8045 for limiting the rotation of the drainage piston 805 is arranged in the drainage sleeve 804.

[0058] The drive roller 503 drives the transmission shaft 806 to rotate, thereby driving the reciprocating screw 8061 to rotate, so that the drainage piston 805 slides back and forth along the reciprocating screw 8061. When the drainage piston 805 slides upward, the water in the water collection tank 5031 is sucked into the drainage piston 805 through the suction pipe 8042. When the drainage piston 805 moves downward, the water in the drainage piston 805 is discharged through the drainage pipe 8041, so that the accumulated water in the water collection tank 5031 is discharged in time, the humidity in the furnace is reduced, and the carbonization rate is increased.

[0059] Furthermore, a triangular shaft 8062 is disposed on the lower end surface of the transmission shaft 806, and a triangular groove 5033 matching with the triangular shaft 8062 is disposed on the bottom upper end surface of the water collecting tank 5031, and the bottom of the triangular shaft 8062 is a triangular pyramid structure.

[0060] By cooperating with the triangular shaft 8062 and the triangular groove 5033, when the driving roller 503 rotates, the transmission shaft 806 can be driven to rotate, thereby driving the reciprocating screw 8061 to rotate. The bottom of the triangular shaft 8062 is set to a triangular pyramid structure to facilitate the alignment of the triangular shaft 8062 with the triangular prism.

[0061] Furthermore, the combustion furnace 2 includes a combustion chamber 201 and a furnace door 203 . The furnace door 203 is rotatably connected to the combustion chamber 201 via hinges. An isolation cylinder 202 is provided in the combustion chamber 201 . The isolation cylinder 202 is sleeved on the driving shaft 502 .

[0062] The drive shaft 502 is isolated from the combustion chamber 201 by the isolation tube 202, so that dust generated during the combustion process is prevented from affecting the rotation of the drive shaft 502, and the working environment temperature of the drive shaft 502 is reduced, thereby reducing its aging rate.

[0063] When the carbonization furnace is in use, the wood raw materials to be processed are broken into pieces of appropriate sizes so that they can be evenly distributed in the material receiving frame 701. Then, the prepared wood pieces are divided into each material receiving frame 701 to ensure that the materials in each layer of the material receiving frame 701 are evenly distributed. The sealing cover 3 on the top of the carbonization furnace shell 1 is opened, and the material receiving frames 701 filled with materials are placed in the inner tank 4 in order from small to large in diameter. At the same time, the material rack 702 and the material receiving frame 701 are installed alternately, and it is ensured that they are correctly connected to the driving roller 503. After confirming that all materials have been properly placed, the sealing cover 3 is reinstalled and locked firmly with the buckle 302. Ensure good sealing to maintain stable internal pressure, add appropriate amount of fuel such as wood chips, coal, etc. into the combustion chamber 201, and ignite it through the ignition device. The heat generated by the combustion will be transferred to the inner tank 4 through the heat pipe 601, providing the necessary temperature conditions for the subsequent carbonization process. The vacuum device is used to evacuate air from the exhaust port 101 to ensure that the inner tank 4 is in a low-oxygen environment, and the drive motor 501 is started, which will activate the entire drive system. First, the cam 5021 on the drive shaft 502 will drive the circulating piston pump 602 to work, so that the heat transfer medium circulates in the heat pipe 601. Thereby achieving uniform heating, at the same time, the driving roller 503 starts to rotate, driving the material frame 701 to rotate. As the material frame 701 rotates, the spiral material plate 7022 on the material rack 702 stirs the charcoal particles therein to ensure uniform heating. The water removal mechanism 8 is also activated, and the scraping ring 801 and the scraper 802 begin to remove condensed water on the lower end surface of the sealing cover 3 to prevent moisture from dripping onto the carbonized wood. When the carbonization process reaches a predetermined time, the fuel supply in the combustion furnace 2 is gradually reduced until it is stopped, allowing the equipment to cool naturally and activate the carbonized wood.

[0064] Example 2

[0065] See also Figure 1-Figure 10 The method for using the vertical wood activated carbon carbonization furnace includes the following steps:

[0066] Step 1, loading, first, obtain wood pieces that have been crushed and meet the carbonization requirements. Before loading, carefully check the integrity of the material frame 701 to ensure that it is not damaged or deformed, and that the air holes 7011 are in a honeycomb structure and unobstructed, and the bull's eye ball 7013 can rotate flexibly to reduce friction with the inner liner 4;

[0067] Then, evenly pack the wood pieces into each material holding frame 701, and be careful not to overfill. A certain amount of space should be reserved so that the wood can be turned over and the gas can circulate during the carbonization process. After the loading is completed, the material holding frames 701 and the material shifting racks 702 are alternately installed in the inner liner 4 according to the pre-designed installation positions and sequence in the inner liner 4. When installing the material holding frame 701, keep the center of the material holding frame 701 consistent with the central axis of the inner liner 4, and align the first key hole 7012 of the material holding frame 701 with the driving roller 503, ensuring that it can cooperate well with the convex edge 5032 of the driving roller 503. When the material-shifting rack 702 is installed, the limiting block 7021 on the side end face of the material-shifting rack 702 is accurately embedded in the limiting slide groove 401 evenly arranged on the side end face of the inner liner 4, ensuring that the material-shifting rack 702 can stably hover above the material-holding frame 701, and the spiral material-shifting plate 7022 on the lower end face of the material-shifting rack 702 is tightly fitted with the inner end face of the side wall of the material-holding frame 701, so that the wood fragments can be effectively shifted in subsequent operations;

[0068] Step 2, sealing, pick up the sealing cover 3, check whether the lower end surface of the sealing cover 3 is clean and free of debris, especially the sealing surface in contact with the top of the carbonization furnace shell 1 should be flat and smooth, slowly place the sealing cover 3 on the upper end of the carbonization furnace shell 1, align the edge of the sealing cover 3 with the edge of the top of the carbonization furnace shell 1, then, buckle the buckles 302 set on the top of the carbonization furnace shell 1 in turn, and firmly fix the sealing cover 3 on the carbonization furnace shell 1 through the fastening effect of the buckles 302 to ensure that the sealing cover 3 and the carbonization furnace shell 1 are tightly sealed to prevent heat loss and gas leakage in the furnace during the carbonization process. At the same time, confirm again that the hook 301 set on the top of the sealing cover 3 is in a normal usable state so that it can be easily operated when the sealing cover 3 needs to be opened;

[0069] Step 3: Preheat and prepare fuel suitable for combustion in the combustion furnace 2, such as charcoal, coal, etc. Open the furnace door 203 of the combustion furnace 2, and carefully load the fuel into the combustion chamber 201. Be careful not to pile it too high or too dense, and ensure that the fuel has enough air circulation space for full combustion. After the fuel is loaded, close the furnace door 203 and ensure that the furnace door 203 is tightly connected to the combustion chamber 201 through the hinge without any loose gaps;

[0070] Use an ignition device to ignite the fuel in the combustion chamber 201. In the early stage of ignition, closely observe the combustion of the fuel so that the fuel can gradually and stably burn. As the fuel burns, the flame begins to release heat, which is directly transferred to the inner tank 4 and the heat pipe 601. Since the heat pipe 601 is spirally coiled on the outer end surface of the inner tank 4, the heat will gradually diffuse along the heat pipe 601, so that the inner tank 4 begins to be heated evenly, and the heat transfer medium in the inner tank 4 melts and flows, providing an initial heat environment for the carbonization of the wood chips. During the preheating process, continuously monitor the temperature changes in the combustion chamber 201 and the heating conditions of the inner tank 4, and fine-tune the vents or the amount of fuel added according to actual needs to ensure that the preheating process is stable and efficient, so that the inner tank 4 and the heat pipe 601 can reach a predetermined initial temperature range, laying a good foundation for the subsequent carbonization process;

[0071] Step 4: Drive, start the motor. After the motor starts running, its drive shaft 502 starts to rotate. The cam 5021 fixedly mounted on the drive shaft 502 rotates with the rotation of the drive shaft 502. The side end surface of the cam 5021 is in sliding contact with the first piston 6022 of the circulating piston pump 602. When the cam 5021 rotates to the position of squeezing the first piston 6022, the first piston 6022 overcomes the elastic force of the spring 6023 and slides into the first sleeve 6021. At this time, the first sleeve 6021 is The heat-conducting solution in the heat-conducting mechanism 6021 is pressed into the heat-conducting pipe 601 from the liquid discharge port 60212 under the pressure of the piston. When the cam 5021 rotates away from the pressing position of the first piston 6022, the first piston 6022 rebounds under the reset action of the spring 6023, and the first sleeve 6021 sucks the heat-conducting solution in the heat-conducting pipe 601 through the liquid inlet 60211. This cycle drives the heat-conducting solution in the heat-conducting mechanism 6 to flow stably in the heat-conducting pipe 601, so that the inner tank 4 is heated more evenly.

[0072] At the same time, the driving roller 503 on the top of the driving shaft 502 also rotates under the drive of the motor. The convex ridges 5032 evenly arranged on the side of the driving roller 503 cooperate with the first key hole 7012 in the center of the material holding frame 701. When the driving roller 503 rotates, the convex ridges 5032 drive the material holding frame 701 to rotate around its central axis. During the rotation of the material holding frame 701, the air holes 7011 at the bottom are conducive to the smooth discharge of water vapor and other gases generated by the wood chips during the heating process. The conical side end surface and the conical side end surface of the inner tank 4 and the material picking frame 701 suspended above the material holding frame 701 are 2 work together, while the material receiving frame 701 rotates, the spiral material shifting plate 7022 on its lower end surface starts to shift the wood fragments in the material receiving frame 701. Since the bottom surface of the material receiving frame 701 is a conical structure, the wood fragments first slide toward the edge of the material receiving frame 701 under the shifting of the material shifting plate 7022. As the material receiving frame 701 continues to rotate, the wood fragments on the edge will slide toward the center of the material receiving frame 701 along the side of the material shifting plate 7022, so that the wood fragments slide back and forth between the center and the edge of the material receiving frame 701, which effectively improves the heating uniformity of the wood fragments and promotes the carbonization process of the wood;

[0073] In addition, the rotation of the driving roller 503 also drives the scraping circle 801 to rotate. The second key hole 807 in the center of the scraping circle 801 cooperates with the driving roller 503, so that it can stably follow the rotation of the driving roller 503. The scraper 802 fixed on the upper end surface of the scraping circle 801 scrapes the lower end surface of the sealing cover 3 as the scraping circle 801 rotates. The condensed water droplets on the lower end surface of the sealing cover 3 are scraped to the guide groove formed between the guide plate 803 and the scraper 802 under the action of the scraper 802. 8021, and then flows along the guide groove 8021 to the water collecting groove 5031 set at the center of the upper end surface of the driving roller 503. In this process, the water collected in the water collecting groove 5031 at the center of the upper end surface of the driving roller 503 is drained through the transmission shaft 806 and the driving roller 503. The triangular shaft 8062 set at the lower end surface of the driving shaft 806 cooperates with the triangular groove 5033 set at the upper end surface of the bottom of the water collecting groove 5031. When the driving roller 503 rotates, the triangular shaft 8062 is connected to the driving roller 503. The shaft 8062 rotates under the action of the triangular groove 5033, driving the transmission shaft 806 to rotate. The rotation of the transmission shaft 806 drives the reciprocating screw 8061 connected thereto to rotate. Since the drainage sleeve 804 is provided with a limiting convex strip 8045 for limiting the rotation of the drainage piston 805, the drainage piston 805 is sleeved on the reciprocating screw 8061 and is threadedly connected thereto, so when the reciprocating screw 8061 rotates, the drainage piston 805 slides back and forth up and down along the reciprocating screw 8061. When the water piston 805 slides upward, the water in the water collecting tank 5031 is sucked into the drainage piston 805 through the suction pipe 8042. The suction pipe 8042 is flush with the bottom of the water collecting tank 5031 to ensure effective water absorption; when the drainage piston 805 moves downward, the water in the drainage piston 805 is discharged through the drainage pipe 8041. The drainage pipe 8041 extends to the outside of the sealing cover 3 to discharge the water out of the furnace, thereby timely removing the accumulated water in the water collecting tank 5031, reducing the humidity in the furnace, and increasing the carbonization rate.

[0074] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical wood activated carbon carbonization furnace, comprising a combustion furnace (2), a carbonization furnace shell (1), a sealing cover (3), a heat conduction mechanism (6) and an inner tank (4), characterized in that: The inner container (4) is provided with a material dispensing mechanism (7), the sealing cover (3) is provided with a water removal mechanism (8), and a driving mechanism (5) is provided below the combustion furnace (2); The combustion furnace (2) is fixedly installed below the carbonization furnace shell (1), the inner container (4) is fixedly installed in the carbonization furnace shell (1), and the sealing cover (3) is detachably installed on the top of the carbonization furnace shell (1); The material-dispensing mechanism (7) comprises a plurality of material-containing frames (701) and a material-dispensing rack (702); the material-containing frames (701) are installed in the inner container (4) and are rotatably connected thereto; and the material-dispensing rack (702) is installed in the inner container (4) and is slidably connected thereto; The heat conduction mechanism (6) comprises a heat conduction pipe (601) and a circulation piston pump (602), wherein the heat conduction pipe (601) is spirally wound on the outer end surface of the inner container (4), and the circulation piston pump (602) is installed on the heat conduction pipe (601); The water removal mechanism (8) comprises a scraping ring (801), a scraper (802) and a guide plate (803); the scraping ring (801) is installed in the sealing cover (3) and is rotatably connected thereto via a bearing; the scraper (802) is fixedly installed on the upper end surface of the scraping ring (801); and the guide plate (803) is fixedly installed on the side of the scraper (802); The driving mechanism (5) comprises a driving motor (501), a driving shaft (502) and a driving roller (503); the driving shaft (502) is driven by the heat conducting mechanism (6), and the driving roller (503) is driven by the material shifting mechanism (7) and the water removal mechanism (8).

2. The wood activated carbon vertical carbonization furnace according to claim 1, characterized in that: The circulating piston pump (602) comprises a first sleeve (6021), a first spring (6023) and a first piston (6022); the first piston (6022) is inserted into the first sleeve (6021) and is elastically slidably connected to the first sleeve (6021) via the spring (6023); a liquid inlet (60211) and a liquid discharge port (60212) are arranged on the side of the first sleeve (6021); the end of the heat-conducting pipe (601) is connected with the liquid inlet (60211) and the liquid discharge port (60212) to form a circulating pipeline; a first one-way valve (6011) is arranged at the end of the heat-conducting pipe (601) close to the liquid inlet (60211); and a second one-way valve (6012) is arranged at the end of the heat-conducting pipe (601) close to the liquid discharge port (60212).

3. The wood activated carbon vertical carbonization furnace according to claim 2, characterized in that: The drive shaft (502) is fixedly mounted on the drive shaft (502) of the drive motor (501), and a cam (5021) that cooperates with the circulating piston pump (602) is fixedly mounted on the drive shaft (502), and the side end surface of the cam (5021) is connected to the first piston (6022) in sliding contact.

4. The wood activated carbon vertical carbonization furnace according to claim 1, characterized in that: The driving roller (503) is fixedly mounted on the top of the driving shaft (502); the side of the driving roller (503) is evenly provided with ridges (5032); the center of the material holding frame (701) is provided with a first key hole (7012) that is slidably matched with the driving roller (503); the side end surface of the inner liner (4) and the side end surface of the material holding frame (701) are conical structures; the bottom of the material holding frame (701) is provided with an air vent (7011); the air vent (7011) is a honeycomb structure; the outer end surface of the material holding frame (701) is provided with a bull's eye ball (7013).

5. The vertical wood activated carbon carbonization furnace according to claim 4, characterized in that: The side end surface of the inner container (4) is evenly provided with a limiting slide groove (401), the side end surface of the material shifting frame (702) is provided with a limiting block (7021) corresponding to the position of the limiting slide groove (401), the lower end surface of the material shifting frame (702) is provided with a material shifting plate (7022), the bottom upper end surface of the material holding frame (701) is a conical structure, the material shifting plate (7022) is a spiral structure, and the side surface of the material shifting plate (7022) is in contact with the inner end surface of the side wall of the material holding frame (701).

6. The vertical wood activated carbon carbonization furnace according to claim 1, characterized in that: The center of the scraping ring (801) is provided with a second key hole (807) that cooperates with the driving roller, the scraper (802) is connected to the lower end surface of the sealing cover (3) in sliding contact, the center of the upper end surface of the driving roller (503) is provided with a water collecting trough (5031), and a guide groove (8021) facing the water trough is formed between the guide plate (803) and the scraper (802).

7. The vertical wood activated carbonization furnace according to claim 6, characterized in that: A drainage sleeve (804) is fixedly mounted on the lower end surface of the sealing cover (3), a slidably connected drainage piston (805) is arranged inside the drainage sleeve (804), a rotatably connected reciprocating screw (8061) is arranged inside the drainage sleeve (804), the drainage piston (805) is sleeved on the reciprocating screw (8061) and is threadedly connected thereto, a drainage pipe (8041) and a water suction pipe (8042) are arranged at the bottom of the side end surface of the drainage sleeve (804), a third one-way valve (8043) is arranged on the drainage pipe (8041), a fourth one-way valve (8044) is arranged on the water suction pipe (8042), and a transmission shaft (806) that cooperates with the driving roller (503) is arranged at the bottom of the reciprocating screw (8061).

8. The vertical wood activated carbon carbonization furnace according to claim 7, characterized in that: The lower end surface of the transmission shaft (806) is provided with a triangular shaft (8062), the upper end surface of the bottom of the water collecting tank (5031) is provided with a triangular groove (5033) matching with the triangular shaft (8062), and the bottom of the triangular shaft (8062) is a triangular pyramid structure.

9. The vertical wood activated carbon carbonization furnace according to claim 1, characterized in that: The combustion furnace (2) comprises a combustion chamber (201) and a furnace door (203), wherein the furnace door (203) is rotatably connected to the combustion chamber (201) via a hinge, and an isolation cylinder (202) is arranged in the combustion chamber (201), wherein the isolation cylinder (202) is sleeved on a driving shaft (502).

10. A method for using a vertical wood activated carbon carbonization furnace, applicable to the vertical wood activated carbon carbonization furnace according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1, loading, loading the crushed wood pieces into each material receiving frame (701), then alternately installing the material receiving frame (701) and the material shifting frame (702) in the inner container (4); Step 2: Sealing: fixing the sealing cover (3) to the upper end of the carbonization furnace housing (1); Step 3, preheating, loading fuel into the combustion furnace (2) and igniting it, and directly heating the inner tank (4) and the heat conducting tube (601) through the combustion of the fuel in the combustion furnace (2); Step 4, drive, start the motor, first drive the heat-conducting solution in the heat-conducting mechanism (6) to flow through the driving mechanism (5), then drive the material-moving mechanism (7) to move the wood fragments, and further drive the water-removing mechanism (8) to sweep away the water droplets on the inner end surface of the sealing cover (3).

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