Biomass carbonization furnace and use method thereof

Abstract

The invention relates to a biomass carbonization furnace and a using method thereof, and relates to the related field of carbonization, the biomass carbonization furnace comprises a carbonization box, a support box used for supporting the carbonization box, a pre-drying mechanism installed in the support box, and a feeding mechanism installed at one end of the carbonization box, the pre-drying mechanism is used for drying carbonized raw materials through a heat source during heating of the carbonization box and gas during carbonization of the carbonization box, the pre-dried raw materials are added into the carbonization box in a low-oxygen state through the feeding mechanism, air treatment during feeding is achieved through the feeding mechanism, a cavity used for feeding is vacuum, and the feeding efficiency of the carbonization box is improved. The raw materials can be added into the material storage cavity as much as possible in a horizontal movement mode, the gas in the material storage cavity can be extruded out as much as possible through the volume of the raw materials, even if the gas overflows upwards, the gas can be stricken through the horizontal movement, and the movement is not affected.

Description

Technical Field

[0001] The present invention relates to the field related to carbonization, and specifically to a biomass carbonization furnace and its usage method. Background Art

[0002] A biomass carbonization furnace is a device that carbonizes biomass raw materials (such as wood chips, rice husks, plant straws, etc.) through dry distillation under high temperature and anaerobic conditions.

[0003] Its working principle is to send the biomass raw materials into the carbonization furnace, and through a high-temperature anaerobic environment, cause them to undergo pyrolysis reactions to generate products such as carbon and condensable liquids. The biomass carbonization furnace has the characteristics of high efficiency, environmental protection, energy conservation, etc., and is widely used in fields such as the production of carbon-based fertilizers and the preparation of activated carbon.

[0004] With the progress of the times and the continuous development of science, existing carbonization furnaces have evolved to continuous carbonization without stopping the furnace, that is, they can feed and discharge materials simultaneously without the need to stop the furnace during this process;

[0005] However, during the carbonization process of the raw materials, they need to be in a low-oxygen or anaerobic environment. During the process of feeding without stopping the furnace, air will enter the carbonization furnace, resulting in the inability to meet the anaerobic / anoxic environment required during the carbonization process, and thus the quality of carbonization is relatively low;

[0006] In response to the above-mentioned problems, a feeding device for a biomass carbonization furnace is disclosed, with the publication number: CN102433141B;

[0007] This device cuts off the feeding port and the discharging port by at least two blades when the rotating shaft rotates, thereby preventing external air from entering the carbonization. Although the structure is relatively simple, there are still certain problems;

[0008] Blocking is carried out by means of blades, and feeding work is carried out through the chambers formed by the blades. There must be oxygen in these chambers. Existing carbonization furnaces usually feed in small amounts multiple times. By this means, a certain amount of oxygen will be added to the furnace each time. Although the amount is not large, the accumulation will inevitably affect the carbonization effect;

[0009] Secondly, since this device is a rotary feeding device, the amount that can be added necessarily cannot completely squeeze out the air in the chamber and cannot overcome the above problems. Summary of the Invention

[0010] The purpose of the present invention is to provide a biomass carbonization furnace and its usage method to solve the problems raised in the above background art.

[0011] To achieve the above purpose, the present invention provides the following technical solutions:

[0012] A biomass carbonization furnace, including a carbonization box, further comprising:

[0013] A support box for supporting the carbonization box;

[0014] A pre-drying mechanism, which is installed in the support box;

[0015] A feeding mechanism, which is installed at one end of the carbonization box;

[0016] The pre-drying mechanism dries the carbonization raw materials by using the heat source when heating the carbonization box and the available gas during the carbonization of the carbonization box. The pre-dried raw materials are added to the carbonization box in a low-oxygen state through the feeding mechanism;

[0017] Two heating elements are fixed in the support box. The heating surfaces of the two heating elements face the bottom of the carbonization box, and the two heating elements are connected by a fuel supply component.

[0018] As a further scheme of the present invention: The pre-drying mechanism includes an upper layer plate and a lower layer plate fixed in the support box, and both the upper layer plate and the lower layer plate are inclined;

[0019] Receiving grooves are formed on the opposite sides of the upper layer plate and the lower layer plate;

[0020] A plurality of collecting pipes communicating with the carbonization box are fixed at the top of the carbonization box. The plurality of collecting pipes pass through the receiving grooves and are communicated with a centralized pipe fixed at the end of the lower layer plate;

[0021] A collecting box is arranged on one side of the support box at the lower position side of the upper layer plate.

[0022] As a further scheme of the present invention: A plurality of heat dividing rods are further installed in the receiving grooves, heat receiving rods are fixed on both sides of the upper layer plate and the lower layer plate, and the plurality of heat dividing rods are all fixed to the heat receiving rods;

[0023] The heat receiving rods are located on both sides of the bottom of the carbonization box, and the heat receiving rods do not contact the carbonization box.

[0024] As a further scheme of the present invention: The feeding mechanism includes a feeding box fixed at one end of the carbonization box and communicating with it, and the feeding box is arranged in an L shape;

[0025] A feeding box is slidably installed on the feeding box. A storage cavity is arranged in the feeding box. A feeding port communicating with the storage cavity is opened at the top of the feeding box, and a discharging component is installed at the bottom of the feeding box;

[0026] Negative pressure components are further installed on both sides of the feeding box, and the negative pressure components are communicated with the storage cavity;

[0027] A partition component cooperating with the discharging component is installed in the feeding box;

[0028] An electric telescopic rod is fixed to the top of the feeding box, and the movable rod of the electric telescopic rod is fixed to the feeding box.

[0029] As a further solution of the present invention: the partition member includes a sealing plate rotatably installed in the feeding box, and the sealing plate is rotatably connected to an elastic member rotatably installed in the feeding box;

[0030] The elastic member includes a spring sleeve rotatably installed on the inner wall of the feeding box. A sliding rod rotatably connected to the sealing plate is slidably installed in the spring sleeve. A spring is installed in the spring sleeve. One end of the spring is fixed to the bottom of the spring cylinder and the other end is fixed to the sliding rod.

[0031] As a further solution of the present invention: the discharging assembly includes a discharging port and an activity groove opened at the bottom of the feeding box. A discharging plate is slidably installed in the activity groove, and a communication port matching the discharging port is opened on the discharging plate;

[0032] A guide rod is further fixed to the end of the discharging plate. A spring is sleeved on the guide rod. A trigger block is fixed to the side of the discharging plate away from the guide rod, and the trigger block cooperates with the feeding box.

[0033] As a further solution of the present invention: the negative pressure member includes pistons fixed to both sides of the feeding box, and the piston rods of the pistons are fixed to the feeding box;

[0034] The input end of the piston is communicated with the storage cavity of the carbonization box through a conveying pipe.

[0035] As a further solution of the present invention: two baffle plates are further fixed to the feeding box, and the two baffle plates are respectively on both sides of the movable rod of the electric telescopic rod.

[0036] As a further solution of the present invention: a plurality of bearing frames are equidistantly fixed along the length direction on the upper layer plate, and a first limiting plate is rotatably installed on each of the plurality of bearing frames, and a second limiting plate is coaxially rotatably installed on the first limiting plate;

[0037] Among them, a gear set is rotatably installed on the upper layer plate, and the gear set is connected to the rotating shafts of the first limiting plate and the second limiting plate through two transmission chains respectively;

[0038] A driven gear is coaxially fixed to the rotating shaft of the second limiting plate, and a rack frame meshing with the driven gear is slidably installed on the bearing frame.

[0039] The present invention also provides a method for using a biomass carbonization furnace. Using the biomass carbonization furnace described above, it includes the following steps:

[0040] Step 1, add the raw materials that need to be subsequently added to the carbonization box to the upper layer plate;

[0041] Step 2: Pre-dry the raw materials on the upper layer plate through a pre-drying mechanism. The pre-dried raw materials will be transported to the collection box for storage.

[0042] Step 3: Transport the pre-dried raw materials in the collection box to the feeding mechanism through a conveying device.

[0043] Step 4: Add the dried raw materials to the carbonization box in a low-oxygen state through the feeding mechanism.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0045] Firstly, when feeding materials, the present invention processes the air through the feeding mechanism, making the chamber for material supply in a vacuum state, and the oxygen present is extremely small, even negligible.

[0046] Among them, the present invention feeds materials by the horizontal movement of the feeding box, which can add raw materials to the storage chamber as much as possible. The gas in the storage chamber is discharged by the volume of the raw materials. Even if it overflows onto the feeding box, it can be leveled by the horizontal movement of the feeding box without affecting the movement.

[0047] Secondly, the present invention can dry the raw materials through the pre-drying mechanism, reducing the evaporation time of moisture during carbonization, thereby improving the carbonization efficiency.

[0048] The present invention improves the time of the raw materials on the upper layer plate by the way of whether to allow the raw materials to pass through the mutual cooperation of the first limiting plate and the second limiting plate. The time of the raw materials on the upper layer plate depends on the flipping frequency of the first limiting plate and the second limiting plate. Moreover, this way can make the raw materials have a "falling" phenomenon during movement, thus having the effect of turning the raw materials, improving the uniform heating of the raw materials, and further reducing the moisture evaporation time.

[0049] And the present invention forms a cone by the first limiting plate and the second limiting plate to intercept / limit the raw materials, and the moving raw materials will not get stuck. Because when limiting the raw materials through the first limiting plate, the raw materials are diverted to both sides due to the conical structure, so that the raw materials do not contact the key components. Description of the Drawings

[0050] Figure 1 It is the right axonometric view of the whole biomass carbonization furnace.

[0051] Figure 2 It is the left axonometric view of the whole biomass carbonization furnace.

[0052] Figure 3 It is the schematic structural view of the inside of the support box in the biomass carbonization furnace.

[0053] Figure 4Schematic diagram of the collection pipe and heat distribution rod in the biomass carbonization furnace.

[0054] Figure 5 Schematic diagram of the heat distribution pipe and heat collection rod in the biomass carbonization furnace.

[0055] Figure 6 Schematic diagram of the collection pipe and the central pipe in the biomass carbonization furnace.

[0056] Figure 7 Right axonometric view of the feeding mechanism in the biomass carbonization furnace.

[0057] Figure 8 Left axonometric view of the feeding mechanism in the biomass carbonization furnace.

[0058] Figure 9 Front perspective view of the feeding mechanism in the biomass carbonization furnace.

[0059] Figure 10 For Figure 9 Partial enlarged view at position A in

[0060] Figure 11 Right axonometric view of the feeding port on the feeding box in the biomass carbonization furnace.

[0061] Figure 12 Left axonometric view of the feeding port on the feeding box in the biomass carbonization furnace.

[0062] Figure 13 Cross-sectional view of the feeding box in the biomass carbonization furnace.

[0063] Figure 14 Schematic diagram of the feeding plate and the communication port in the biomass carbonization furnace.

[0064] Figure 15 Schematic diagram of the first limit plate and the second limit plate in the biomass carbonization furnace.

[0065] Figure 16 Schematic diagram of the gear set in the biomass carbonization furnace.

[0066] Figure 17 Motion state diagram of the first limit plate and the second limit plate in the biomass carbonization furnace.

[0067] In the figure: 1, carbonization box; 2, support box; 201, upper plate; 202, lower plate; 3, feeding box; 301, feeding box; 302, piston; 303, conveying pipe; 304, feeding port; 305, baffle; 306, electric telescopic rod; 307, piston rod; 308, first inclined part; 309, sealing plate; 3010, second inclined part; 3011, elastic part; 3012, discharging plate; 3013, guide rod; 3014, communication port; 3015, trigger block; 3016, moving groove; 3017, spring; 4, collecting pipe; 401, concentrating pipe; 5, heat distributing rod; 501, heat collecting rod; 6, heating element; 601, fuel supply element; 7, collecting box; 8, bearing frame; 801, first limiting plate; 802, second limiting plate; 803, rack frame; 804, rack; 805, incomplete gear; 806, driven gear; 807, reset spring; 808, gear set; 809, transmission chain. Specific implementation mode

[0068] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0069] In addition, an element in the present invention is referred to as being "fixed to" or "disposed on" another element, which can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0070] Embodiment 1, please refer to Figures 1 to 17 , a biomass carbonization furnace, including a carbonization box 1, and further including a support box 2 for supporting the carbonization box 1;

[0071] A pre-drying mechanism installed in the support box 2;

[0072] A feeding mechanism installed at one end of the carbonization box 1;

[0073] The pre-drying mechanism dries the carbonization raw materials by using the heat source when heating the carbonization box 1 and the gas that can be utilized during the carbonization of the carbonization box 1, and adds the pre-dried raw materials to the carbonization box 1 in a low-oxygen state through the feeding mechanism;

[0074] Two heating elements 6 are fixed inside the support box 2, and the heating surfaces of the two heating elements 6 both face the bottom of the carbonization box 1. The two heating elements 6 are connected by a fuel supply member 601;

[0075] Among them, the low-oxygen feeding of the feeding mechanism means that when feeding into the carbonization box 1, the outside air of the carbonization box 1 is not connected to the inside of the carbonization box 1, and the oxygen doped when adding raw materials into the carbonization box 1 is relatively small.

[0076] In the embodiment of the present invention, the fuel supply member 601 supplies fuel to the two heating elements 6 simultaneously, and when the two heating elements 6 work, the carbonization box 1 is heated synchronously, so as to give the carbonization box 1 the temperature required for carbonizing the raw materials through the heating of the heating elements 6;

[0077] Secondly, when the heating element 6 heats the carbonization box 1, part of the generated heat will act on the pre-drying mechanism.

[0078] Embodiment 2, the difference feature from Embodiment 1 is that: the pre-drying mechanism includes an upper layer plate 201 and a lower layer plate 202 fixed inside the support box 2, and both the upper layer plate 201 and the lower layer plate 202 are inclined;

[0079] Receiving grooves are provided on the opposite sides of the upper layer plate 201 and the lower layer plate 202;

[0080] A plurality of collecting pipes 4 communicating with the top of the carbonization box 1 are fixed, and the plurality of collecting pipes 4 pass through the receiving grooves and are communicated with a concentration pipe 401 fixed at the end of the lower layer plate 202;

[0081] A collecting box 7 is provided on one side of the support box 2 at the low position side of the upper layer plate 201.

[0082] In the embodiment of the present invention, when the carbonization box 1 is heated to heat the raw materials, some available gases will be generated, and the temperature of the gases is relatively high;

[0083] The high-temperature gas is actually transported into the concentration pipe 401 through the collecting pipe 4, and the gas is transported into the collecting equipment through the concentration pipe 401 for collection or use;

[0084] Among them, during the process of the gas moving from the collecting pipe 4 into the concentration pipe 401, heat will be transferred to the upper layer plate 201, so that the temperature of the upper layer plate 201 rises. When the raw materials move from the high position to the low position of the upper layer plate 201, the raw materials are heated by the high temperature, and the temperature during the heating process is not particularly high. Because the heat source of the upper layer plate 201 is the high-temperature gas transported by the collecting pipe 4, therefore, the raw materials are heated to a certain extent for drying without causing combustion;

[0085] In this embodiment, high-temperature gas is generated when the carbonization box 1 heats the raw materials for carbonization. By utilizing this high-temperature gas, the pre-drying treatment of the raw materials is completed, thereby improving the efficiency of the raw materials during carbonization and avoiding the waste of heat sources without using separate energy while completing the pre-drying work.

[0086] A plurality of heat-distributing rods 5 are further installed in the accommodating groove. Heat-receiving rods 501 are fixed on both sides of the upper layer plate 201 and the lower layer plate 202. A plurality of the heat-distributing rods 5 are all fixed to the heat-receiving rods 501.

[0087] The heat-receiving rods 501 are located on both sides of the bottom of the carbonization box 1, and the heat-receiving rods 501 do not contact the carbonization box 1.

[0088] In the embodiment of the present invention, when the carbonization box 1 is heated by the heating member 6, not all of the heat source acts on the bottom of the carbonization box 1, and the vicinity of the bottom of the carbonization box 1 will also be heated, and a certain degree of waste of this part of the heat source will occur.

[0089] In the presence of the heat-receiving rods 501, the heat source that is not fully utilized will heat the heat-receiving rods 501. When the heat-receiving rods 501 are heated, the heat is transferred to the heat-distributing rods 5, so as to heat the upper layer plate 201 through the heat-distributing rods 5. The function of the heat-distributing rods 5 is basically the same as that of the collecting pipe 4.

[0090] Among them, the heat-distributing rods 5 and the collecting pipes 4 are installed alternately so that the upper layer plate 201 can be fully heated.

[0091] It should be noted that material limiting plates are symmetrically fixed on the upper layer plate 201 to limit the raw materials.

[0092] Embodiment 3, the difference feature from Embodiment 2 or / and Embodiment 3 is that: the feeding mechanism includes a feeding box 3 fixed to one end of the carbonization box 1 and communicating with it, and the feeding box 3 is arranged in an L shape;

[0093] A feeding box 301 is slidably installed on the feeding box 3. A storage cavity is provided in the feeding box 301. A feeding port 304 communicating with the storage cavity is opened at the top of the feeding box 301, and a discharging component is installed at the bottom of the feeding box 301;

[0094] Negative pressure components are further installed on both sides of the feeding box 3, and the negative pressure components communicate with the storage cavity;

[0095] A partition component cooperating with the discharging component is installed in the feeding box 3;

[0096] An electric telescopic rod 306 is fixed to the top of the feeding box 3, and the movable rod of the electric telescopic rod 306 is fixed to the feeding box 301.

[0097] In an embodiment of the present invention, the raw materials that have been pre-dried in the collection box 7 are put into the storage cavity through the feed port 304 by a conveying device. Then, the electric telescopic rod 306 works. When the electric telescopic rod 306 works, it drives the feeding box 301 to move horizontally. When the feeding box 301 moves horizontally, it seals the feed port 304 to make the storage cavity in a closed state. As the feeding box 301 moves, the discharging assembly and the negative pressure component are driven to work synchronously;

[0098] When the negative pressure assembly works, it pumps out the air in the storage cavity to make the storage cavity in a negative pressure state, thereby discharging most of the oxygen in the storage cavity;

[0099] When the discharging assembly works, it discharges the materials to the feeding box 3 through the bottom of the feeding box 301;

[0100] Wherein, a first inclined part 308 and a second inclined part 3010 are respectively arranged in the feeding box 3 and the storage cavity. When the raw materials are in the storage cavity, the first inclined part 308 drives the raw materials to move towards the discharging position. Similarly, when the raw materials are in the feeding box 3, the second inclined part 3010 drives the raw materials into the carbonization box 1.

[0101] The partition member includes a blocking plate 309 rotatably installed in the feeding box 3, and the blocking plate 309 is rotatably connected to an elastic member 3011 rotatably installed in the feeding box 3;

[0102] The elastic member 3011 includes a spring sleeve rotatably installed on the inner wall of the feeding box 3. A sliding rod rotatably connected to the blocking plate 309 is slidably installed in the spring sleeve. A spring is installed in the spring sleeve. One end of the spring is fixed to the bottom of the spring cylinder and the other end is fixed to the sliding rod.

[0103] In an embodiment of the present invention, when the discharging assembly discharges the raw materials into the feeding box 3, first, the raw materials will fall onto the blocking plate 309, and the weight of the raw materials drives the blocking plate 309 to flip. When the blocking plate 309 flips, the blockage is released;

[0104] Wherein, the feeding box 3 can be divided into an upper cavity and a lower cavity by the blocking plate 309. The upper cavity is for the entry of materials, and a certain amount of oxygen will be brought in at this time. When the weight of the raw materials on the blocking plate 309 reaches a certain amount, it will drive the blocking plate 309 to flip, so that the raw materials enter the lower cavity, and the raw materials are conveyed into the feeding box 3 through the lower cavity;

[0105] The raw materials need to accumulate for a certain time on the blocking plate 309. This time reserves enough time for the negative pressure component to work. Simply put, when the blocking plate 309 flips, the oxygen in the upper cavity and the storage cavity has been processed. When the blocking plate 309 flips to connect the upper cavity and the lower cavity, the remaining oxygen is very little and can be ignored;

[0106] It should be noted that the elastic member 3011 actually provides power for the reset of the plugging plate 309 after flipping. When the elastic member 3011 flips, the spring is stretched. When the raw material on the plugging plate 309 enters the lower cavity, the elastic potential energy released by the stretched spring drives the plugging plate 309 to flip back and reset.

[0107] The discharging assembly includes a discharging port and a movable slot 3016 formed at the bottom of the feeding box 301. A discharging plate 3012 is slidably installed in the movable slot 3016, and a communication port 3014 cooperating with the discharging port is formed on the discharging plate 3012.

[0108] A guide rod 3013 is further fixed to the end of the discharging plate 3012. A spring 3017 is sleeved on the guide rod 3013. A trigger block 3015 is fixed to the side of the discharging plate 3012 away from the guide rod 3013, and the trigger block 3015 cooperates with the feeding box 3.

[0109] In the embodiment of the present invention, when the feeding box 301 moves, it drives the discharging plate 3012 to move synchronously. When the feeding box 301 reaches the feeding port 304 inside the feeding box 3, that is, when plugging the feeding port 304, the trigger block 3015 abuts against the inner wall of the feeding box 3, so that the trigger block 3015 and the discharging plate 3012 are limited. Then, when the feeding box 301 continues to move, the discharging plate 3012 and the trigger block 3015 are stationary, so that the communication port 3014 of the discharging plate 3012 coincides with the discharging port under the continuous movement of the feeding box 301, and then the raw material in the storage cavity enters the feeding box 3.

[0110] Among them, when the discharging plate 3012 is stationary and the feeding box 301 continues to move, that is, when the discharging plate 3012 and the feeding box 301 move relatively, the spring 3017 is compressed. When the feeding box 301 moves back and forth, the elastic potential energy released by the compressed spring 3017 drives the discharging plate 3012 to reset. That is, when the feeding box 301 resets, the communication port 3014 moves to be misaligned with the discharging port to plug the discharging port again.

[0111] The negative pressure member includes pistons 302 fixed to both sides of the feeding box 3. The piston rods 307 of the pistons 302 are fixed to the feeding box 301.

[0112] The input end of the piston 302 is communicated with the storage cavity of the carbonization box 1 through a conveying pipe 303.

[0113] In the embodiment of the present invention, when the feeding box 301 moves, it drives the piston rods 307 of the pistons 302 to move, so as to apply negative pressure to the storage cavity through the conveying pipe 303 when the piston rods 307 move. This negative pressure will radiate to the upper cavity of the feeding box 3 when the discharging assembly works for discharging.

[0114] Two baffles 305 are also fixed on the feeding box 3, and the two baffles 305 are respectively located on both sides of the movable rod of the electric telescopic rod 306.

[0115] In the embodiment of the present invention, the baffle 305 can prevent the raw materials from hitting the baffle 305 when adding raw materials into the storage cavity through the feeding port 304. Of course, the height of the baffle 305 can be determined according to the situation.

[0116] It should also be noted that a window for feeding the upper layer plate 201 is provided on one side of the support box 2, which is not shown in the drawings of the present invention.

[0117] A plurality of bearing frames 8 are fixedly arranged at equal intervals along the length direction on the upper layer plate 201. A first limiting plate 801 is rotatably installed on each of the plurality of bearing frames 8, and a second limiting plate 802 is coaxially and rotatably installed on the first limiting plate 801;

[0118] Among them, a gear set 808 is rotatably installed on the upper layer plate 201, and the gear set 808 is respectively connected to the rotating shafts of the first limiting plate 801 and the second limiting plate 802 through two transmission chains 809;

[0119] A driven gear 806 is coaxially fixed on the rotating shaft of the second limiting plate 802, and a rack frame 803 meshing with the driven gear 806 is slidably installed on the bearing frame 8.

[0120] In the embodiment of the present invention, a rack 804 is arranged on the rack frame 803, and the rack 804 cooperates with an incomplete gear 805 rotatably installed on the bearing frame 8. The incomplete gear 805 is driven to rotate by a motor, and the rack frame 803 is driven to slide by the meshing of the toothed part of the incomplete gear 805 with the rack 804. When the rack frame 803 slides, the driven gears 806 are driven to rotate synchronously by the engagement of its rack part with the driven gear 806;

[0121] A return spring 807 is also fixed on one side of the rack frame 803, and the other end of the return spring 807 is fixed to the bearing frame 8. When the rack frame 803 moves, the return spring 807 is compressed to release the elastic potential energy stored when the incomplete gear 805 is compressed when the toothed part of the incomplete gear 805 disengages from the rack frame 803, so as to drive the rack frame 803 to reset by releasing the elastic potential energy of the return spring 807;

[0122] Among them, the rack part of the rack frame 803 is "equidistantly and oppositely arranged", and its equidistant and opposite arrangement means that the first rack part faces the left side, the second faces the right side, and so on. There is no rack part on the opposite side of the first rack part and the second rack part;

[0123] The achieved effect is that when the rack 803 moves, it drives the first driven gear 806 to rotate clockwise, the second to rotate counterclockwise, the third to rotate clockwise, and so on;

[0124] When the driven gear 806 rotates, it drives the second limit plate 802 to rotate. The second limit plate 802 drives the gear set 808 to rotate through the transmission chain 809. When the gear set 808 rotates, it drives the first limit plate 801 to rotate relatively through another transmission chain 809, thereby realizing the relative / opposite flipping of the first limit plate 801 and the second limit plate 802.

[0125] Please refer to Figure 15 and Figure 17 , Figure 17 In, the dotted line part is the movement track of the first limit plate 801, and the corresponding second limit plate 802 flips relatively. For the convenience of description, the first limit plate 801 and the second limit plate 802 are positioned as a limit group. It can be seen from Figure 15 that the first group of limit groups is in an open state and cooperates with the upper layer plate 201 so that the raw materials cannot fall. The second group is in a combined state to allow the raw materials to fall. The third group is in an open state again. Through the above movement states, it can be realized that the odd-numbered limit groups move synchronously, and the even-numbered limit groups move synchronously;

[0126] Among them, when the odd numbers are open, the even numbers are combined, and vice versa. When the even numbers are open, the odd numbers are combined, so that when the raw materials move from the top of the upper layer plate 201 to the bottom of the upper layer plate 201, the multi-group limit groups can realize the limiting work on the raw materials, and the time of the raw materials on the upper layer plate 201 can be controlled;

[0127] It should be noted that the gear set 808 in this embodiment is located within the cone formed by the first limit plate 801 and the second limit plate 802. Therefore, when the raw materials pass through, they will not contact the gear set 808. Of course, in order to avoid dust affecting the service life of the gear set 808, a protective cover can be installed.

[0128] The present invention also provides a method for using a biomass carbonization furnace. Using the biomass carbonization furnace described above, it includes the following steps:

[0129] Step 1, add the raw materials that need to be subsequently added to the carbonization box 1 to the upper layer plate 201;

[0130] Step 2, pre-dry the raw materials on the upper layer plate 201 through the pre-drying mechanism. The raw materials that have completed the pre-drying treatment will be transported to the collection box 7 for storage;

[0131] Step 3, use the conveying equipment to convey the raw materials that have completed the pre-drying treatment in the collection box 7 towards the feeding mechanism;

[0132] Step 4: Add the dried raw materials into the carbonization box 1 through the feeding mechanism under a low-oxygen state.

[0133] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0134] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biomass carbonization furnace, comprising a carbonization box (1), characterized in that: Also includes: A support box (2) for supporting the carbonization box (1); A pre-drying mechanism, the pre-drying mechanism being installed in the support box (2); A feeding mechanism, the feeding mechanism being installed at one end of the carbonization box (1); The pre-drying mechanism dries the carbonized raw materials by using the heat source when heating the carbonization box (1) and the gas when the carbonization box (1) is carbonized, and the pre-dried raw materials are added into the carbonization box (1) in a low-oxygen state through the feeding mechanism; Two heating elements (6) are fixed in the support box (2), the heating surfaces of the two heating elements (6) are both facing the bottom of the carbonization box (1), and the two heating elements (6) are connected via a fuel supply element (601).

2. A biomass carbonization furnace according to claim 1, characterized in that: The pre-drying mechanism comprises an upper plate (201) and a lower plate (202) fixed in the support box (2), and the upper plate (201) and the lower plate (202) are both arranged in an inclined manner; The upper plate (201) and the lower plate (202) are each provided with a receiving groove on one side opposite to the other; A plurality of collecting pipes (4) in communication with the carbonization box (1) are fixed on the top thereof, and the plurality of collecting pipes (4) pass through the containing groove and are in communication with a concentrating pipe (401) fixed at the end of the lower plate (202); A collecting box (7) is provided on one side of the support box (2) located at the lower side of the upper plate (201).

3. A biomass carbonization furnace according to claim 2, characterized in that: A plurality of heat distribution rods (5) are also installed in the containing groove, and heat collecting rods (501) are fixed on both sides of the upper plate (201) and the lower plate (202), and the plurality of heat distribution rods (5) are fixed to the heat collecting rods (501); The heat collecting rods (501) are located at two sides of the bottom of the carbonization box (1), and the heat collecting rods (501) are not in contact with the carbonization box (1).

4. A biomass carbonization furnace according to claim 2, characterized in that: The feeding mechanism comprises a feeding box (3) fixed to one end of the carbonization box (1) and connected thereto, and the feeding box (3) is arranged in an L shape; A loading box (301) is slidably mounted on the feed box (3), a material storage cavity is arranged in the loading box (301), a feeding port (304) communicating with the material storage cavity is opened at the top of the loading box (301), and a material discharge assembly is installed at the bottom of the loading box (301); Negative pressure components are also installed on both sides of the feed box (3), and the negative pressure components are connected to the material storage cavity; A partition member cooperating with the discharge assembly is installed in the feed box (3); An electric telescopic rod (306) is fixed on the top of the feed box (3), and the movable rod of the electric telescopic rod (306) is fixed to the loading box (301).

5. A biomass carbonization furnace according to claim 4, characterized in that: The partition member comprises a blocking plate (309) rotatably mounted in the feed box (3), and the blocking plate (309) is rotatably connected to an elastic member (3011) rotatably mounted in the feed box (3); The elastic member (3011) comprises a spring sleeve rotatably mounted on the inner wall of the feed box (3), a sliding rod rotatably mounted inside the spring sleeve and rotatably connected to the blocking plate (309), a spring mounted inside the spring sleeve, one end of the spring being fixed to the bottom of the spring tube and the other end being fixed to the sliding rod.

6. A biomass carbonization furnace according to claim 5, characterized in that: The material discharge assembly comprises a material discharge port and a movable groove (3016) provided at the bottom of the material loading box (301), a material discharge plate (3012) is slidably installed in the movable groove (3016), and a communication port (3014) cooperating with the material discharge port is provided on the material discharge plate (3012); A guide rod (3013) is also fixed to the end of the discharge plate (3012), and a spring (3017) is sleeved on the guide rod (3013). A trigger block (3015) is fixed to the side of the discharge plate (3012) away from the guide rod (3013), and the trigger block (3015) cooperates with the feed box (3).

7. A biomass carbonization furnace according to claim 6, characterized in that: The negative pressure member comprises a piston (302) fixed to both sides of the feed box (3), and a piston rod (307) of the piston (302) is fixed to the loading box (301); The input end of the piston (302) is connected to the material storage chamber of the carbonization box (1) through a delivery pipe (303).

8. The biomass carbonization furnace according to claim 4, characterized in that: Two baffles (305) are also fixed on the feed box (3), and the two baffles (305) are respectively located on both sides of the movable rod of the electric telescopic rod (306).

9. The biochar furnace according to claim 2, characterized in that: A plurality of bearing frames (8) are fixed on the upper plate (201) at equal intervals along the length direction, a first limiting plate (801) is rotatably mounted on each of the plurality of bearing frames (8), and a second limiting plate (802) is coaxially rotatably mounted on the first limiting plate (801); Wherein, a gear set (808) is rotatably mounted on the upper plate (201), and the gear set (808) is connected to the rotating shafts of the first limiting plate (801) and the second limiting plate (802) through two transmission chains (809) respectively; A driven gear (806) is coaxially fixed on the rotating shaft of the second limiting plate (802), and a rack frame (803) meshing with the driven gear (806) is slidably mounted on the support frame (8).

10. A method for using a biomass carbonization furnace, using the biomass carbonization furnace according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1, adding raw materials to be subsequently added to the carbonization box (1) onto the upper plate (201); Step 2: pre-drying the raw materials on the upper plate (201) by means of a pre-drying mechanism, and the pre-dried raw materials are transported to a collection box (7) for storage; Step 3, conveying the raw materials that have completed the pre-drying treatment in the collection box (7) toward the feeding mechanism through a conveying device; Step 4: Add the dried raw materials into the carbonization box (1) under low oxygen conditions through the feeding mechanism.

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