Novel internal heating gas and charcoal co-production furnace

Abstract

The utility model provides a novel inner hot gas charcoal co-production furnace, which relates to the technical field of carbonization equipment, and comprises a support frame and a double-layer roller rotatably arranged on the support frame, the double-layer roller comprises an inner-layer roller and an outer-layer roller sleeved on the inner-layer roller, a certain distance is arranged between the inner-layer roller and the outer-layer roller to form a cavity for accommodating materials, and the inner-layer roller and the outer-layer roller are arranged in parallel. A feeding port and a discharging port are formed in the outer-layer cylinder, a plurality of vent holes are formed in the side wall of the second end of the inner-layer cylinder, gas in the cavity can be conveniently diffused into the inner-layer cylinder, generated gas enters the combustion chamber to be combusted, the first end of the inner-layer cylinder is directly connected with the combustion chamber, flue gas is prevented from being conveyed in a conveying pipeline, and the combustion efficiency is improved. The smoke is prevented from being cooled in the conveying pipeline, the probability of generating wood tar and wood vinegar is reduced, the first end cover capable of being opened and closed is arranged at the second end of the inner-layer cylinder, and when the first end cover is opened, the fire spraying nozzle can spray fire into the inner-layer cylinder so that materials can be carbonized.

Description

Technical Field

[0001] The utility model relates to the technical field of carbonization furnaces, in particular to a novel internal hot gas-carbon cogeneration furnace. Background Art

[0002] From a traditional perspective, carbonization of materials is mostly produced by kiln firing and dry distillation. However, the traditional production method, whether it is the production process or the use of its products, is not environmentally friendly and causes a great waste of raw materials. Among them, in general, people use a carbonization furnace with a single-layer tube flame to burn on the outside, and the material reacts in the carbonization furnace. When the smoke generated by the material is transferred to the combustion chamber, the conveying pipe is exposed to the air, and the smoke circulates in the pipe. Since the temperature on the outside of the conveying pipe is relatively low, the temperature of the smoke in the conveying pipe is reduced, and the smoke condenses to produce wood tar and wood acetic acid. Wood tar and wood acetic acid will stick to the side wall of the conveying pipe, blocking the conveying pipe, requiring staff to clean the pipeline regularly, increasing maintenance costs, and wood tar and wood acetic acid are more harmful to the human body. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of internal hot gas charcoal cogeneration furnace to solve the technical problem in the prior art that during the process of flue gas being transported from the carbonization furnace to the combustion chamber, the flue gas is prone to rapid cooling and condensation to generate wood tar and wood acetic acid. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a novel internal hot gas-carbon cogeneration furnace, comprising a support frame, and a double-layer drum rotatably arranged on the support frame, the double-layer drum comprising an inner layer drum and an outer layer drum, a cavity for accommodating materials is formed between the inner layer drum and the outer layer drum, the first end of the inner layer drum is directly connected to the combustion chamber, a plurality of air vents are arranged on the side wall of the second end of the inner layer drum, and the air vents connect the cavity with the inner cavity of the inner layer drum, the outer layer drum is provided with a feed port and a discharge port, the second end of the inner layer drum is provided with a first end cover that can be opened and closed, and when the first end cover is opened, the flame nozzle can spray fire into the inner layer drum to carbonize the material.

[0006] Preferably, it also includes a negative pressure fan arranged on one side of the combustion chamber.

[0007] Preferably, temperature sensors are provided on the side walls of the inner layer cylinder and the outer layer cylinder, and the temperature sensors are communicatively connected with the control device.

[0008] Preferably, the double-layered drum is arranged at an angle, the height of the second end of the double-layered drum is higher than the height of the first end, and the feed port is arranged at the second end of the double-layered drum.

[0009] Preferably, the discharge port is arranged at the first end of the double-layer drum.

[0010] Preferably, the length of the outer layer cylinder is shorter than the length of the inner layer cylinder.

[0011] Preferably, a heat-insulating layer is provided on the outer side of the double-layer drum.

[0012] Preferably, an explosion relief component is provided on the outer layer cylinder and is arranged at the end of the outer layer cylinder, and the explosion relief component is communicatively connected with the control device.

[0013] Preferably, it also includes a driving motor arranged on the supporting frame and a gear box connected to the driving motor, and the gear box is connected to the double-layer drum.

[0014] The technical solution provided by this application document includes the following beneficial effects:

[0015] The utility model provides a novel internal hot gas carbon cogeneration furnace, comprising a support frame and a double-layer drum rotatably arranged on the support frame, the inner drum at the first end of the double-layer drum is directly connected to the combustion chamber, in order to facilitate the storage of materials, a certain distance is provided between the inner drum and the outer drum of the double-layer drum, so that a cavity for accommodating materials is formed between the outer drum and the inner drum, in order to facilitate the staff to fill the cavity with materials or discharge the material residues in the cavity, a feed port and a discharge port are provided on the outer drum, people can go to the feed port through a material conveyor, and then enter the cavity, so as to facilitate carbonization in the cavity, and a plurality of vents are provided on the side wall of the second end of the inner drum, so as to facilitate the gas generated by the material in the cavity to diffuse into the inner drum, so as to facilitate the carbonization. The generated gas can enter the combustion chamber for combustion. Since the inner cylinder at the first end of the double-layer drum is directly connected to the combustion chamber, the smoke is prevented from being transported in the conveying pipe and the cooling of the smoke in the conveying pipe is reduced. At the same time, the first end of the inner cylinder is connected to the combustion chamber, so the temperature in the combustion chamber is also transmitted to the first end of the inner cylinder. Secondly, since the inner cylinder is wrapped in the outer cylinder, when the smoke in the inner cylinder is transported to the combustion chamber, it can prevent the smoke from cooling down and condensing rapidly, thereby avoiding the production of wood tar and wood acetic acid. In order to facilitate the provision of heat to the inner cylinder, the second end of the inner cylinder is provided with a first end cover that can be opened and closed. When the first end cover is opened, the flamethrower can spray fire into the inner cylinder to carbonize the material.

[0016] In this arrangement, since the inner cylinder of the double-layer drum is directly connected to the combustion chamber, it is unnecessary to set up a conveying pipeline, thereby avoiding changes in the temperature drop of the flue gas, avoiding the generation of wood acetic acid and wood tar by the combustion of materials, reducing the blockage of pipelines, and reducing the number of maintenance times. At the same time, since the material can generate heat energy when it is pyrolyzed at 350-750 degrees Celsius, it can provide energy for the material that has not been pyrolyzed, reducing the transmission of external energy. At the same time, the generated gas burns in the combustion chamber to generate water and carbon dioxide, avoiding the emission of waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram showing a novel internal hot gas-charcoal cogeneration furnace connected to a combustion chamber according to an exemplary embodiment;

[0019] Figure 2 is a schematic diagram showing the cross-sectional structure of a double-layer drum according to an exemplary embodiment;

[0020] Figure 3 yes Figure 2 A is an enlarged view of the middle image.

[0021] In the figure: 1. support frame; 2. double-layer drum; 3. inner cylinder; 4. outer cylinder; 5. vent; 6. temperature sensor; 7. feed port; 8. discharge port; 9. insulation layer; 10. negative pressure fan; 11. combustion chamber; 12. first end cover; 13. second end cover; 14. cavity; 15. drive motor; 16. gear box. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0023] This specific embodiment provides a novel internal hot gas-carbon cogeneration furnace, which solves the technical problem in the prior art that wood tar and wood acetic acid are easily generated during the carbonization of materials.

[0024] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to the solutions required as the utility model described in the claims.

[0025] Reference Figure 1-Figure 3 The utility model provides a novel internal hot gas charcoal cogeneration furnace, including a support frame 1, a double-layer drum 2 rotatably arranged on the support frame 1, in order to facilitate the storage of materials, the double-layer drum includes an inner drum and an outer drum, the outer drum is sleeved on the inner drum, there is a certain distance between the inner drum 3 and the outer drum 4 of the double-layer drum 2, so that a cavity 14 for accommodating materials is formed between the outer drum 4 and the inner drum 3, in order to facilitate the staff to fill materials into the cavity 14 or discharge the material residue in the cavity 14, a feed port 7 and a discharge port 8 that can be opened and closed are provided on the outer drum 4, the feed port 7 is opened and the discharge port 8 is closed, people can go to the feed port 7 through the material conveyor, and then enter the cavity 14, the filling is completed, the feed port 7 is closed, it is convenient for the material to be carbonized in the cavity 14, a plurality of ventilation holes 5 are provided on the side wall of the second end of the inner drum 3, which are convenient for air The gas generated by the material in the cavity 14 diffuses into the inner tube 3, and then the generated gas can enter the combustion chamber 11 for combustion. Since the inner tube 3 at the first end of the double-layer drum 2 is directly connected to the combustion chamber 11, the smoke is prevented from being transported in the conveying pipe, and the cooling of the smoke in the conveying pipe is reduced. At the same time, the inner tube 3 at the first end of the double-layer drum 2 is directly connected to the combustion chamber 11, so that the temperature in the combustion chamber 11 is also transmitted to the first end of the inner tube 3. Secondly, since the inner tube is wrapped in the outer tube, when the smoke of the inner tube is transported to the combustion chamber, it can prevent the smoke from cooling down and condensing rapidly, thereby avoiding the production of wood tar and wood acetic acid. In order to facilitate the provision of heat to the inner tube 3, the second end of the inner tube 3 is provided with a first end cover 12 that can be opened and closed. When the first end cover 12 is opened, the flamethrower can spray fire into the inner tube 3 to carbonize the material.

[0026] Specifically, the first end cover 12 is opened first, and the flame nozzle sprays fire into the inner tube 3, the temperature in the inner tube 3 rises, and the material in contact with the inner tube 3 is heated and changes; in the initial stage, when the temperature of the side wall of the inner tube 3 is relatively low, generally within 20-150 degrees Celsius, the pyrolysis rate of the material is very slow, mainly losing moisture and drying; when the temperature rises to 50-275 degrees Celsius, the thermal decomposition reaction of the wood material is more obvious, and the chemical composition begins to change. The above two processes are endothermic decomposition stages; when the temperature reaches 350-750 degrees Celsius, the wood material undergoes rapid thermal decomposition to generate a large amount of decomposition products. Due to the high temperature, the generated flue gas products do not contain wood acetic acid, methanol and wood tar, and the carbon dioxide content in the generated gas products gradually decreases, while the combustible gases such as methane and ethylene gradually increase. This stage releases a large amount of reaction heat, so it is also called the exothermic reaction stage. At this time, the workers can remove the flame nozzle and directly use the heat generated by the material to promote the carbonization of the unreacted material. Among them, when the temperature drops to 450-500 degrees Celsius, it is already the final stage. As the temperature radiates, the material can discharge the volatile substances remaining in the charcoal and increase the fixed carbon content of the charcoal.

[0027] In such an arrangement, since the inner cylinder 3 of the double-layer drum 2 is directly connected to the combustion chamber 11, it is avoided to set up a conveying pipeline, thereby avoiding a sharp drop in the temperature of the smoke, avoiding the production of wood acetic acid and wood tar from the combustion of materials, reducing the blockage of pipelines, and reducing the number of maintenance times. At the same time, since the material can generate heat energy when it is pyrolyzed at 350-750 degrees Celsius, it can provide energy for the material that has not been pyrolyzed, reducing the transmission of external energy. At the same time, the generated gas is burned in the combustion chamber 11 to generate water and carbon dioxide, avoiding the emission of waste gas.

[0028] In this embodiment, in order to facilitate the gas in the cavity 14 to enter the combustion chamber 11 smoothly, a negative pressure fan 10 is also included on one side of the combustion chamber 11. The negative pressure fan 10 adsorbs the gas in the combustion chamber 11, prompting the gas in the cavity 14 to enter the combustion chamber 11 for combustion.

[0029] In this embodiment, in order to control the temperature in the double-layer drum 2, temperature sensors 6 are provided on the side walls of the inner layer drum 3 and the outer layer drum 4. In order to facilitate the staff to understand the approximate decomposition progress of the material in the cavity 14, the temperature sensors 6 are respectively arranged at the first end and the second end of the outer layer drum 4, respectively collecting the temperature at the two ends of the outer layer drum 4. The temperature sensor 6 arranged at the second end of the outer layer drum is used to sense the problem of gas ejected from the vent hole. The temperature sensor arranged at the first end of the outer layer drum 4 is used to sense the temperature in the material. Since the material will first react at the second end of the outer layer drum, the temperature gradually extends to the first end of the outer layer drum, and then judge whether the material reaction is completed; the temperature sensor 6 arranged at the inner layer drum 3 senses the temperature in the inner layer drum 3 to ensure that a suitable temperature is provided for the material. Among them, the temperature sensor 6 can be connected to the control device for communication, so that the staff can check the temperature detected by the temperature sensor 6.

[0030] In addition, during the pyrolysis process, when the temperature sensed by the temperature sensor 6 arranged at the first end of the inner layer tube 3 is relatively low, the first end cover 12 at the second end of the inner layer tube 3 can be opened slightly larger to facilitate the entry of oxygen into the combustion chamber 11, thereby increasing the temperature. When the temperature sensed by the temperature sensor 6 is relatively high, the first end cover 12 at the second end of the inner layer tube 3 can be opened slightly smaller to allow less oxygen to enter the combustion chamber.

[0031] In this embodiment, the double-layer drum 2 is tilted, the height of the second end of the double-layer drum 2 is higher than the height of the first end, and the feed port 7 is set at the second end of the double-layer drum 2. In this way, the material can slide smoothly to the first end under the action of gravity, which facilitates the sliding of the material.

[0032] In this embodiment, in order to facilitate the smooth discharge of the product after pyrolysis of the material, the discharge port 8 is set at the first end of the double-layer drum 2. Since the position of the first end of the double-layer drum 2 is lower than the position of the second end of the double-layer drum 2, the material after pyrolysis can slide out of the discharge port 8 under the action of gravity.

[0033] In this embodiment, in order to facilitate the delivery of the gas in the double-layer drum 2 into the combustion chamber 11, the length of the outer layer drum 4 is shorter than the length of the inner layer drum 3. Specifically, the length of the outer layer drum 4 at the first end of the double-layer drum 2 is shorter than the length of the inner layer drum 3. This makes it convenient to extend the inner layer drum 3 into the combustion chamber 11 so that the gas can be burned.

[0034] In this embodiment, a heat-insulating layer 9 is provided on the outer side of the double-layer drum 2 to prevent the heat in the outer drum 4 from being lost and to ensure the temperature of the smoke.

[0035] In this embodiment, in order to avoid sudden power failure of the equipment, an explosion-proof assembly is provided on the outer tube 4, and the explosion-proof assembly is communicably connected to the control device. The opening and closing of the explosion-proof assembly is a prior art. Specifically, an opening is provided on the side wall or end face of the outer tube 4, and a second end cover 13 capable of opening and closing the opening is provided at the position of the opening, wherein a telescopic cylinder is provided on the second end cover 13, and the telescopic cylinder is communicably connected to the control device. When a fault occurs, the control device transmits a signal to the telescopic cylinder, and the telescopic cylinder controls the second end cover 13 to open.

[0036] In the present embodiment, in order to facilitate driving the double-layered drum 2 to rotate, it also includes a driving motor 15 arranged on the support frame 1 and a gear box 16 connected to the driving motor 15, and the gear box 16 is connected to the double-layered drum 2. The driving motor 15 drives the shaftless drum to rotate, which is the prior art, that is, a gear ring is arranged on the side wall of the double-layered drum 2, and an output shaft is arranged on the gear box 16 and is connected to the gear ring, that is, a rotating wheel is connected to the output shaft, and a gear matching the gear ring is arranged on the rotating wheel, so as to conveniently drive the double-layered drum 2 to rotate.

[0037] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. used herein to indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

[0040] It is to be understood that the same or similar parts in the above embodiments can refer to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments. The multiple schemes provided in this application include their own basic schemes, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0041] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present application. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present application.

Claims

1. A new type of internal hot gas-carbon cogeneration furnace, characterized in that: The invention comprises a support frame (1), and a double-layer drum (2) rotatably arranged on the support frame (1), wherein the double-layer drum comprises an inner layer drum (3) and an outer layer drum (4), wherein a cavity (14) for accommodating materials is formed between the inner layer drum (3) and the outer layer drum (4), wherein the first end of the inner layer drum (3) is directly connected to the combustion chamber, and a plurality of ventilation holes (5) are arranged on the side wall of the second end of the inner layer drum (3), and the ventilation holes (5) connect the cavity (14) with the inner cavity of the inner layer drum (3), and the outer layer drum (4) is provided with a feed port (7) and a discharge port (8), and the second end of the inner layer drum (3) is provided with a first end cover (12) which can be opened and closed, and when the first end cover (12) is opened, the flame nozzle can spray fire into the inner layer drum (3) to carbonize the materials.

2. The novel internal hot gas-carbon cogeneration furnace according to claim 1 is characterized in that: It also includes a negative pressure fan (10) arranged on one side of the combustion chamber (11).

3. The novel internal hot gas-carbon cogeneration furnace according to claim 1 is characterized in that: Temperature sensors (6) are provided on the side walls of the inner layer cylinder (3) and the outer layer cylinder (4), and the temperature sensors (6) are communicatively connected to the control device.

4. The novel internal hot gas-carbon cogeneration furnace according to claim 1 is characterized in that: The double-layered drum (2) is arranged at an angle, the height of the second end of the double-layered drum (2) is higher than the height of the first end, and the feed port (7) is arranged at the second end of the double-layered drum (2).

5. The novel internal hot gas-carbon cogeneration furnace according to claim 1 is characterized in that: The discharge port (8) is arranged at the first end of the double-layer drum (2).

6. The novel internal hot gas-carbon cogeneration furnace according to claim 1 is characterized in that: The length of the outer layer cylinder (4) is shorter than the length of the inner layer cylinder (3).

7. The novel internal hot gas-carbon cogeneration furnace according to claim 1 is characterized in that: A heat-insulating layer (9) is provided on the outer side of the double-layer drum (2).

8. The novel internal hot gas-carbon cogeneration furnace according to claim 1 is characterized in that: An explosion relief component is provided on the outer layer cylinder (4) and is arranged at the end of the outer layer cylinder (4), and the explosion relief component is communicatively connected with the control device.

9. The novel internal hot gas-carbon cogeneration furnace according to claim 1 is characterized in that: It also includes a driving motor (15) arranged on the supporting frame (1), and a gear box (16) connected to the driving motor (15), wherein the gear box (16) is connected to the double-layer drum (2).

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