Linear log dry distillation box with hydraulic propelling feeding and discharging functions

Abstract

The utility model discloses a linear log dry distillation box body with a hydraulic propulsion feeding and discharging function, which relates to the technical field of dry distillation calcination of log sections and comprises a dry distillation box body, a dry distillation chamber with consistent front and rear caliber specifications is formed in the dry distillation box body, and the front end of the dry distillation box body is connected with a hydraulic propeller. A push rod of the hydraulic propeller is movably matched with a box plate at the front end of the dry distillation box body, the tail end of the push rod is located in the dry distillation chamber and connected with a propelling plate movably matched with the dry distillation chamber, a log section feeding port is formed in the top of the front end of the dry distillation box body, and a log feeding gate plate is arranged on the log section feeding port. A tail end box plate of the dry distillation box body is provided with a raw wood calcined carbon discharge port, a raw wood calcined carbon discharge gate plate is arranged at the raw wood calcined carbon discharge port, and combustible pyrolysis gas release pipe assemblies communicated with the dry distillation chamber are arranged at the top of the dry distillation box body and on the two sides close to the top of the dry distillation box body. According to the utility model, log section materials and log calcined carbon can be hydraulically pushed to be loaded and unloaded in the longer dry distillation box body.

Description

Technical Field

[0001] This utility model relates to the field of dry distillation and calcination technology of log segments, specifically to a straight log dry distillation box with hydraulic propulsion for loading and unloading. Background Technology

[0002] Logs are tree trunks cut into sections of a certain length according to standard or special specifications for size, shape, and quality. These sections are called logs, and after dry distillation and calcination, they are carbonized into high-calorific-value charcoal. It has high combustion efficiency and produces relatively few pollutants during combustion. Further processing and carbonization can produce activated carbon, which is widely used in chemical, environmental protection, and pharmaceutical fields.

[0003] Currently, log pyrolysis charcoal is mostly produced using earthen kilns. This involves partially burning logs in the kiln, then sealing the kiln and pyrolyzing it under air-free conditions. The result is high-quality, amorphous charcoal that retains the original porous structure and residual tar within the logs. The entire process requires a long, sealed firing period, typically 10 to 15 days.

[0004] To address the time-consuming nature of traditional earthen kiln carbonization, some existing carbonization furnaces have significantly accelerated the process through high-temperature furnaces with controllable air intake. For example, the invention patent CN 114806604 B, "A Continuous Combustion Carbonization Furnace," describes a process where material, after ignition at the ignition port, sequentially enters the first and second furnace chambers. Air from the bottom of both chambers is supplied through air jackets to aid combustion. Combustible floating debris generated during combustion is burned off on a filter screen. Carbon monoxide produced during combustion is consumed and burned by sufficient oxygen supplied through a secondary air intake pipe in the high-temperature upper part of the furnace. Fly ash is removed by a water curtain dust collector, ensuring clean exhaust gas that meets emission standards. Material passing through the first and second furnace chambers is further flattened and lowered below the screw shaft by the increased spacing between the spiral blades. After entering the cooling section, it is sealed off from oxygen and carbonized uniformly before finally being discharged from the outlet. However, this carbonization furnace is only suitable for carbonizing agricultural waste such as low-lying straw in the field and is not suitable for carbonizing logs. For example, the invention patent "Continuous Biomass Carbonization Furnace" with publication number CN 109609137 A allows biomass raw materials to be rapidly and fully mixed and contacted with high-temperature flue gas under the suction of a high-temperature induced draft fan and the forward-to-back flow force of high-temperature flue gas, achieving continuous pyrolysis and carbonization for 24 hours. However, this carbonization furnace is only suitable for granular biomass materials and has no capacity to process larger logs. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this utility model provides a linear log retorting box with hydraulic propulsion for loading and unloading.

[0006] The technical solution adopted by this utility model to achieve the above-mentioned technical effects is:

[0007] A straight log pyrolysis box with hydraulic propulsion for loading and unloading is used for pyrolysis and charring of log segments. It includes a horizontally extending pyrolysis box with pyrolysis chambers of uniform diameter formed at both the front and rear. A hydraulic propeller is connected to the front end of the pyrolysis box. The push rod of the hydraulic propeller is movably adapted to the front end plate of the pyrolysis box, and its end is located in the pyrolysis chamber and connected to a propulsion plate movably adapted to the pyrolysis chamber. A log segment inlet is located at the top of the front end of the pyrolysis box, and a log inlet gate is provided at the inlet. A charred log outlet is located at the rear end plate of the pyrolysis box, and a charred log outlet gate is provided at the outlet. Combustible pyrolysis gas release pipe assemblies connected to the pyrolysis chambers are provided at the top and on both sides near the top of the pyrolysis box.

[0008] Preferably, in the above-mentioned straight log pyrolysis box with hydraulic propulsion loading and unloading, the pyrolysis box is made of 253MA high-temperature resistant alloy steel with a sandwich shell, and the sandwich shell is provided with a high-temperature resistant lining made of ceramic fiber compressed blocks. The inner shell wall located on the side of the pyrolysis chamber is provided with a silicon carbide wear-resistant layer with a thickness of 1 to 3 mm.

[0009] Preferably, in the above-mentioned straight log distillation box with hydraulic propulsion loading and unloading, the thickness of the ceramic fiber compression block is 30cm.

[0010] Preferably, in the above-mentioned straight log pyrolysis box with hydraulic propulsion for loading and unloading, the tail end of the pyrolysis box is connected to a log calcined char discharge pipe that is connected to the log calcined char discharge port.

[0011] Preferably, in the above-mentioned straight log pyrolysis box with hydraulic propulsion for loading and unloading, a discharge gate groove is provided on the inner wall of the box at the tail end of the pyrolysis box. The lower part of the discharge gate groove extends through the bottom of the tail end of the pyrolysis box, and the log calcined charcoal discharge gate is adapted to the discharge gate groove by sliding up and down from the bottom of the tail end of the pyrolysis box.

[0012] Preferably, in the above-mentioned straight log retorting box with hydraulic propulsion loading and unloading, a high-temperature and high-pressure resistant double sealing structure is provided between the log feeding gate and the sealing interface of the log section feeding port.

[0013] Preferably, in the above-mentioned straight log pyrolysis box with hydraulic propulsion loading and unloading, the log calcined charcoal discharge gate and the discharge gate slide groove are provided with a high-temperature and high-pressure resistant double sealing structure at the sealing interface on the side facing the front end of the pyrolysis box.

[0014] Preferably, in the above-mentioned straight log pyrolysis box with hydraulic propulsion loading and unloading, a high-temperature and high-pressure resistant double sealing structure is provided between the push rod and the sealing interface of the front panel of the pyrolysis box.

[0015] Preferably, in the above-mentioned straight log pyrolysis box with hydraulic propulsion loading and unloading, the length-to-diameter ratio of the pyrolysis box is 18:1, and the volume is 2.8m³.

[0016] The beneficial effects of this utility model are as follows: The linear log retorting chamber of this utility model, through a hydraulic propeller connected to the front end of the retorting chamber, can stably push the log segments fed from the log segment inlet forward one stroke, reset, continue feeding, and push forward another stroke, repeating this cycle multiple times until the log segments fill the retorting chamber. After the log segments are calcined into charcoal inside the chamber, the log charcoal outlet is opened, the hydraulic propeller is activated, and it pushes forward one stroke. Then the log segment inlet is opened for feeding, and the hydraulic propeller continues to push forward one stroke, repeating this cycle multiple times until all the log charcoal in the chamber is pushed out. This linear log retorting chamber, through the hydraulic propeller, enables the hydraulic propulsion and loading of log segments and log charcoal within a relatively long retorting chamber. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 for Figure 2 An enlarged view of part "A" in the image;

[0020] Figure 4 for Figure 2 An enlarged view of section "B" in the middle;

[0021] Figure 5 for Figure 2 An enlarged view of section "C" in the middle;

[0022] Figure 6 for Figure 2 Enlarged view of section "D" in the middle;

[0023] Figure 7 for Figure 2 Enlarged view of the "E" section. Detailed Implementation

[0024] To provide a further understanding of this utility model, the following description, with reference to the accompanying drawings and specific embodiments, will further illustrate the utility model:

[0025] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Please see Figure 1 , Figure 2 As shown in the figure, an embodiment of this utility model proposes a straight log pyrolysis box with hydraulic propulsion for loading and unloading, used for pyrolysis and charcoal production of log segments. It includes a horizontally extending pyrolysis box 1, with pyrolysis chambers 7 of uniform diameter formed inside the box 1. A hydraulic propeller 2 is connected to the front end of the pyrolysis box 1. Wherein, as... Figure 7 As shown, the push rod 21 of the hydraulic thruster 2 is movably adapted to the front end plate of the dry distillation tank 1. The end of the push rod 21 is located in the dry distillation chamber 7 and is connected to a push plate 22 movably adapted to the dry distillation chamber 7. The movement of the material (log segments, calcined log charcoal) in the dry distillation chamber 7 is accomplished by the pushing of the push plate 22. Figure 4 As shown, the front end of the dry distillation chamber 1 has a log inlet 15 at the top position, and a log inlet gate 3 is provided on the log inlet 15. When logs are being fed, the log inlet gate 3 opens, allowing the logs to enter the dry distillation chamber 7 through the open log inlet 15. When it is necessary to push the material towards the rear end of the dry distillation chamber 1, the log inlet gate 3 closes, forming a seal at the log inlet 15, so that the pusher plate 22 can stably push the material in its pushing stroke forward, preventing the material from being squeezed and rushing out of the open log inlet 15 during the pushing process. Figure 5 and Figure 6As shown, the tail end of the dry distillation chamber 1 is equipped with a log calcined char outlet 16, and a log calcined char outlet gate 5 is installed at the log calcined char outlet 16. During the loading of log segments, the log calcined char outlet gate 5 is always in the closed state of the log calcined char outlet 16. When log calcined char needs to be discharged, the log calcined char outlet gate 5 is always in the open state of the log calcined char outlet 16 until all the log calcined char in the dry distillation chamber 7 has been pushed out, at which point the log calcined char outlet gate 5 returns to the closed state of the log calcined char outlet 16. To improve the thermal energy utilization rate of the combustible pyrolysis gas from the log segments, combustible pyrolysis gas release pipe assemblies connected to the dry distillation chamber 7 are installed on the top and on both sides near the top of the dry distillation chamber 1. The combustible pyrolysis gas generated during the high-temperature sealed calcination of the log segments is released into the outer environment of the pyrolysis tank 1 through the combustible pyrolysis gas release pipe assembly, and burns on the outer wall of the pyrolysis tank 1, heating the pyrolysis tank 1 and causing the log segments inside the pyrolysis tank 1 to be calcined at high temperature until carbonized.

[0028] Furthermore, in a preferred embodiment of this utility model, such as Figure 3 As shown, the distillation chamber 1 is a double-layered shell 11 made of 253MA high-temperature alloy steel. A high-temperature resistant lining 12 made of ceramic fiber compressed blocks is provided within the double layer of the shell 11. A silicon carbide wear-resistant layer with a thickness of 1-3 mm is provided on the inner shell wall of the shell 11 located on one side of the distillation chamber 7. The double-layered shell 11 made of 253MA high-temperature alloy steel can withstand temperatures above 700℃ and has a service life exceeding 20,000 hours. The ceramic fiber compressed blocks are 30 cm thick, and the high-temperature resistant lining 12 formed by them can withstand temperatures above 1000℃ and has a service life exceeding 40,000 hours. In a preferred embodiment of this invention, the distillation chamber 1 has a length-to-diameter ratio of 18:1 and a volume of 2.8 m³, capable of loading logs with a diameter of 80-150 mm.

[0029] Furthermore, in a preferred embodiment of this utility model, to facilitate the feeding of logs for charcoal production, such as... Figure 1 As shown, the tail end of the dry distillation tank 1 is connected to a log calcined charcoal discharge pipe 4 that is connected to the log calcined charcoal discharge port 16. The log calcined charcoal pushed by the hydraulic propeller 2 is pushed out from the log calcined charcoal discharge port 16 on the tail end of the dry distillation tank 1, and then falls onto the log calcined charcoal discharge pipe 4, and is then transported to the downstream transfer equipment through the log calcined charcoal discharge pipe 4.

[0030] Furthermore, in a preferred embodiment of this utility model, such as Figure 5 and Figure 6As shown, a discharge gate groove 17 is provided on the inner wall of the dry distillation tank 1 at its tail end. The lower part of the discharge gate groove 17 extends through the bottom of the tail end of the dry distillation tank 1. The log calcined charcoal discharge gate 5 is slidably fitted into the discharge gate groove 17 from the bottom of the tail end of the dry distillation tank 1. When the log calcined charcoal outlet 16 is closed, the log calcined charcoal discharge gate 5 is completely located in the discharge gate groove 17, thus sealing the log calcined charcoal outlet 16. When it is necessary to open the log calcined charcoal outlet 16, the log calcined charcoal outlet gate 5 moves downward from the outlet gate groove 17 until the upper end face of the log calcined charcoal outlet gate 5 is flush with the bottom plane of the dry distillation chamber 7. At this time, the log calcined charcoal outlet 16 is fully opened, and the log calcined charcoal can be smoothly pushed out of the dry distillation chamber 7 and discharged into the log calcined charcoal outlet pipe 4 through the fully opened log calcined charcoal outlet 16. In a preferred embodiment of this utility model, the opening and closing of the log feed gate 3 and the log calcined charcoal outlet gate 5 can be electrically driven, hydraulically driven, or manually lever driven. As existing gate drive structures, they will not be described in detail here.

[0031] In embodiments of this utility model, to improve the sealing performance of the distillation tank 1, a high-temperature and high-pressure resistant double sealing structure is provided between the sealing interface of the log feed gate 3 and the log segment feed inlet 15. A high-temperature and high-pressure resistant double sealing structure is provided between the sealing interface of the log calcined charcoal discharge gate 5 and the discharge gate groove 17 on the side facing the front end of the distillation tank 1. A high-temperature and high-pressure resistant double sealing structure is provided between the sealing interface of the push rod 21 and the front end plate of the distillation tank 1. All of the above-mentioned double sealing structures are a double sealing design of graphite packing seal and metal C-ring seal. Specifically, as shown... Figure 4 As shown, the outer shell 11 of the distillation tank 1 has a closing groove 13 formed at the position corresponding to the log inlet 15 for adapting to the log feed gate 3. The inner shell 11 of the distillation tank 1 extends horizontally to the bottom of the closing groove 13, forming a supporting step 14 for supporting the log feed gate 3. The double sealing structure set between the sealing interface of the log feed gate 3 and the log inlet 15 includes a first metal C-ring 8 and a first graphite packing 81. Both the first metal C-ring 8 and the first graphite packing 81 are rectangular structures. The first metal C-ring 8 is located on the inner diameter side of the first graphite packing 81 and is installed on the lower surface of the log feed gate 3 near the outer edge. Specifically, as shown... Figure 5 and Figure 6As shown, the double sealing structure between the log calcined charcoal discharge gate 5 and the discharge gate groove 17 at the sealing interface on the front side of the distillation tank 1 includes a second graphite packing 82 and a second metal C-ring 83. Both the second graphite packing 82 and the second metal C-ring 83 are rectangular structures. The second metal C-ring 83 is located on the inner diameter side of the second graphite packing 82 and is installed on the surface of the log calcined charcoal discharge gate 5 near the outer edge on the front side of the distillation tank 1. Specifically, as... Figure 7 As shown, the double sealing structure between the push rod 21 and the sealing interface of the front end plate of the distillation tank 1 includes a third metal C-ring 84 and a third graphite packing 85. Both the third metal C-ring 84 and the third graphite packing 85 are circular ring structures. The third graphite packing 85 is located on the side closer to the hydraulic thruster 2, and the third metal C-ring 84 is located on the side closer to the thrust plate 22.

[0032] Furthermore, in a preferred embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the combustible pyrolysis gas release pipe assembly includes a vertical release pipe 6 and a horizontal release pipe 61. The vertical release pipe 6 is located at the top of the dry distillation tank 1, and its lower end is connected to the dry distillation chamber 7. The horizontal release pipe 61 is located on both sides of the dry distillation tank 1, near the top, and its inner end is connected to the dry distillation chamber 7.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection claimed by this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A straight-line log retort vessel with hydraulic propulsion for loading and unloading, for retorting and carbonizing log sections, characterized in that, The application relates to a pyrolysis box body (1) which extends horizontally and linearly, the inside of the pyrolysis box body (1) is formed with pyrolysis chambers (7) with the same caliber at the front and back, the front end of the pyrolysis box body (1) is connected with a hydraulic propeller (2), the push rod (21) of the hydraulic propeller (2) is movably matched on the front end box plate of the pyrolysis box body (1), the tail end is located in the pyrolysis chamber (7), and the push rod (21) is connected with a propelling plate (22) movably matched in the pyrolysis chamber (7), the front end of the pyrolysis box body (1) is provided with a raw wood section feeding port (15) at the top position, the raw wood section feeding port (15) is provided with a raw wood feeding gate (3), the tail end box plate of the pyrolysis box body (1) is provided with a raw wood calcined charcoal discharging port (16), the raw wood calcined charcoal discharging port (16) is provided with a raw wood calcined charcoal discharging gate (5), and the top of the pyrolysis box body (1) and the two sides close to the top are provided with combustible pyrolysis gas releasing pipe assemblies which are connected with the pyrolysis chambers (7).

2. The straight wood distillation box with hydraulic propelling up and down feeding according to claim 1, characterized in that, The pyrolysis box body (1) is composed of a box shell (11) with a sandwich structure made of 253MA high-temperature-resistant alloy steel, the sandwich structure of the box shell (11) is provided with a high-temperature-resistant lining (12) made of a ceramic fiber compression block, and the box shell (11) is provided with a 1-3mm-thick silicon carbide wear-resistant layer on the inner shell wall located on one side of the pyrolysis chamber (7).

3. The straight wood distillation box with hydraulic propelling up and down feeding according to claim 2, characterized in that, The thickness of the ceramic fiber compression block is 30cm.

4. The straight wood distillation box with hydraulic propelling up and down feeding according to claim 1, characterized in that, The tail end of the pyrolysis box body (1) is connected with a raw wood calcined charcoal discharging pipeline (4) connected with the raw wood calcined charcoal discharging port (16).

5. The straight wood distillation box with hydraulic propelling up and down feeding according to claim 1, characterized in that, The tail end of the pyrolysis box body (1) is provided with a discharging gate sliding groove (17) on the inner wall of the box body, the lower part of the discharging gate sliding groove (17) penetrates the tail end bottom of the pyrolysis box body (1), and the raw wood calcined charcoal discharging gate (5) is movably matched in the discharging gate sliding groove (17) from the tail end bottom of the pyrolysis box body (1).

6. The linear log retort with hydraulic propulsion of loading and unloading according to claim 1, characterized in that, A high-temperature-resistant and high-pressure double sealing structure is arranged between the sealing interface between the raw wood feeding gate (3) and the raw wood section feeding port (15).

7. The straight wood distillation box with hydraulic propelling up and down feeding according to claim 5, characterized in that, A high-temperature-resistant and high-pressure double sealing structure is arranged between the sealing interface between the raw wood calcined charcoal discharging gate (5) and the discharging gate sliding groove (17) on the side of the front end of the pyrolysis box body (1).

8. The linear log retort with hydraulic propulsion of loading and unloading according to claim 1, characterized in that, A high-temperature-resistant and high-pressure double sealing structure is arranged between the sealing interface between the push rod (21) and the front end box plate of the pyrolysis box body (1).

9. The linear log retort with hydraulic propulsion of loading and unloading according to claim 1, characterized in that, The length-diameter ratio of the pyrolysis box body (1) is 18:1, and the volume is 2.8m3.

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