Module fast-assembly type carbonization furnace

Abstract

The utility model discloses a module fast-assembly type carbonization furnace which comprises a moisture exhaust pipe, a high-temperature flue gas collecting and burning flue and at least two module carbonization furnace bodies, and an exhaust branch pipe is arranged between each module carbonization furnace body and the moisture exhaust pipe; a high-temperature flue gas discharge pipe and a residual gas recovery pipe system are arranged between each module carbonization furnace body and the high-temperature flue gas collection combustion flue; a third control valve is arranged on the residual gas recovery pipe system, and the residual gas recovery pipe system is used for conveying high-temperature gas in the high-temperature flue gas collection combustion flue into the second module carbonization furnace body so as to dry materials in the second module carbonization furnace body. The residual gas recovery pipe system is used for conveying high-temperature flue gas of the high-temperature flue gas collection combustion flue to the module carbonization furnace body to participate in material drying, so that the high-temperature flue gas can be recycled, the heat utilization rate of the high-temperature flue gas can be improved, the fuel consumption of the module carbonization furnace body can be reduced, low-energy-consumption production is facilitated, and the production cost is reduced. The production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbonization equipment, and particularly relates to a modular quick-assembly carbonization furnace. Background Art

[0002] A carbonization device is a device that carbonizes carbon-containing woody materials such as wood chips, rice husks, peanut shells, plant straws, and barks in a modular quick-assembly carbonization furnace under high-temperature conditions. The carbonization process of woody materials in a modular quick-assembly carbonization furnace generally can be divided into the following three stages: a drying stage, an initial carbonization stage, and a full carbonization stage. The drying stage starts from ignition until the furnace temperature rises to 160°C. At this time, the moisture contained in the woody materials is mainly evaporated by external heating and the heat generated by its own combustion, and the chemical composition of the woody materials hardly changes. In the initial carbonization stage, part of the heat is generated by the combustion of the woody materials themselves, so that the furnace temperature rises to between 160 and 280°C. At this time, the woody materials undergo thermal decomposition reactions, and their composition begins to change. For example, hemicellulose decomposes to generate substances such as CO2, CO, and a small amount of acetic acid. In the full carbonization stage, the temperature in this stage is 300 to 650°C. In this stage, the woody materials rapidly undergo thermal decomposition, and at the same time, a large amount of liquid products such as acetic acid, methanol, and wood tar are generated; in addition, combustible gases such as methane and ethylene are also generated, and these combustible gases burn in the furnace; the thermal decomposition and gas combustion generate a large amount of heat, which raises the furnace temperature, and the woody materials are carbonized by dry distillation at high temperature.

[0003] In the process of production, transportation, and use of the existing carbonization furnaces, there are inconveniences such as large volume, over-limit transportation, difficult hoisting and installation, resulting in extremely high transportation costs, and installation being restricted by the site. Most of them use the method of igniting in the combustion chamber to heat and dry the materials, and the high-temperature flue gas generated in the carbonization chamber is directly discharged, with low heat utilization rate of the high-temperature flue gas, resulting in a large amount of waste of resources and high production costs remaining high. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a modular quick-assembly carbonization furnace. Users can customize various carbonization furnace length specifications according to their own needs, and manufacturers only need to increase or decrease the number of modules to meet the needs of users, which can be used to solve the above problems existing in the prior art.

[0005] To achieve the above object, the utility model adopts the following technical solutions: A modular quick-install carbonization furnace, including a wet gas exhaust pipe, a high-temperature flue gas collection and combustion flue, and at least two modular carbonization furnace bodies. Each component is transported in loose parts and assembled on-site. An exhaust branch pipe is provided between each modular carbonization furnace body and the wet gas exhaust pipe, and a first control valve is provided on the exhaust branch pipe; A high-temperature flue gas discharge pipe and a waste gas recovery pipe system are provided between each modular carbonization furnace body and the high-temperature flue gas collection and combustion flue. A second control valve is provided on the high-temperature flue gas discharge pipe, and the high-temperature flue gas discharge pipe is used to transport the high-temperature gas of the first modular carbonization furnace body to the high-temperature flue gas collection and combustion flue; A third control valve is provided on the waste gas recovery pipe system, and the waste gas recovery pipe system is used to transport the high-temperature gas in the high-temperature flue gas collection and combustion flue to the second modular carbonization furnace body to dry, dehydrate and pre-carbonize the materials in the second modular carbonization furnace body.

[0006] As an optional implementation manner of the above technical solution, the modular carbonization furnace body includes a modular furnace body, a box door is provided on one side of the modular furnace body, a carbonization area and a combustion area flue are provided inside the modular furnace body, and a slide rail for transporting materials is provided in the carbonization area.

[0007] As an optional implementation manner of the above technical solution, the modular furnace body includes a furnace bottom component, a carbonization furnace box body module, a furnace cover and a furnace top connection component. The furnace bottom component and the furnace cover are respectively arranged at the bottom and top of the carbonization furnace box body module, and the furnace top connection component is arranged on the top of the furnace cover.

[0008] As an optional implementation manner of the above technical solution, the carbonization furnace box body module includes a front side plate, a right side plate, a rear side plate and a left side plate. The front side plate, the right side plate, the rear side plate and the left side plate are connected end to end to form an annular structure.

[0009] As an optional implementation manner of the above technical solution, a lifting ear plate is provided on the furnace top connection component.

[0010] As an optional implementation manner of the above technical solution, a refractory insulation layer is provided on the inner wall of the modular furnace body.

[0011] As an optional implementation manner of the above technical solution, support feet are provided at the bottom of the modular furnace body.

[0012] As an optional implementation manner of the above technical solution, a dehumidifying fan is provided on the wet gas exhaust pipe.

[0013] As an optional implementation manner of the above technical solution, a high-temperature resistant fan is provided on the high-temperature flue gas collection and combustion flue.

[0014] As an optional implementation manner of the above technical solution, a waste heat recovery device is provided on the high-temperature flue gas collection and combustion flue.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The present utility model provides a modular quick-assembly carbonization furnace. Between each modular carbonization furnace body and the high-temperature flue gas collection and combustion flue, there are provided a high-temperature flue gas discharge pipe and a residual gas recovery pipe system. The high-temperature flue gas discharge pipe is used to convey the high-temperature gas of the first modular carbonization furnace body to the high-temperature flue gas collection and combustion flue; the residual gas recovery pipe system is used to convey the high-temperature gas in the high-temperature flue gas collection and combustion flue to the second modular carbonization furnace body to dry, dehydrate and pre-carbonize the materials in the second modular carbonization furnace body. The present utility model utilizes the residual gas recovery pipe system to convey the high-temperature flue gas in the high-temperature flue gas collection and combustion flue to the modular carbonization furnace body to participate in material drying, which can realize the recycling of high-temperature flue gas, improve the heat utilization rate of high-temperature flue gas, reduce the fuel use of the modular carbonization furnace body, is conducive to low-energy consumption production, and reduces production costs. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a modular quick-assembly carbonization furnace in an embodiment of the present utility model;

[0018] Figure 2 is a schematic structural diagram of a modular carbonization furnace body in an embodiment of the present utility model;

[0019] Figure 3 is a schematic structural diagram of a modular quick-assembly carbonization furnace in another embodiment of the present utility model.

[0020] In the figure: 1 - wet gas exhaust pipe; 2 - high-temperature flue gas collection and combustion flue; 3 - modular carbonization furnace body; 4 - exhaust branch pipe; 5 - first control valve; 6 - high-temperature flue gas discharge pipe; 7 - residual gas recovery pipe system; 8 - second control valve; 9 - third control valve; 10 - furnace bottom component; 11 - carbonization furnace box module; 12 - furnace cover; 13 - lifting lug plate; 14 - moisture exhaust fan; 15 - high-temperature resistant fan; 16 - waste heat recovery device. Detailed Embodiments

[0021] Such as Figures 1 - 3As shown in the figure, this embodiment provides a modular quick-install carbonization furnace, which includes a moisture exhaust pipe 1, a high-temperature flue gas collection and combustion flue 2, and at least two modular carbonization furnace bodies 3. Each component is transported in bulk and assembled on-site. An exhaust branch pipe 4 is provided between each modular carbonization furnace body 3 and the moisture exhaust pipe 1, and a first control valve 5 is provided on the exhaust branch pipe 4. Since the material contains some moisture, it is necessary to dry the material. During the drying stage of the material, the first control valve 5 is opened, and the moisture generated by drying the material can be transported to the moisture exhaust pipe 1 through the exhaust branch pipe 4, so as to timely discharge the moisture in the modular carbonization furnace body 3 and improve the carbonization efficiency. The moisture exhaust pipe 1 is equipped with a moisture exhaust fan 14, which can quickly discharge the moisture in the modular carbonization furnace body 3 in the drying stage.

[0022] As Figure 1 shown, a high-temperature flue gas discharge pipe 6 and a waste gas recovery pipe system 7 are provided between each modular carbonization furnace body 3 and the high-temperature flue gas collection and combustion flue 2. A second control valve 8 is provided on the high-temperature flue gas discharge pipe 6, and the high-temperature flue gas discharge pipe 6 is used to transport the high-temperature gas of the first modular carbonization furnace body to the high-temperature flue gas collection and combustion flue 2. Among them, one end of the high-temperature flue gas discharge pipe 6 and the exhaust branch pipe 4 can be connected to the modular carbonization furnace body 3 respectively to realize the connection function of both the high-temperature flue gas discharge pipe 6 and the exhaust branch pipe 4 with the modular carbonization furnace body 3. Alternatively, a tee pipe can be provided between the high-temperature flue gas discharge pipe 6 and the exhaust branch pipe 4. One interface of the tee pipe is connected to the modular carbonization furnace body 3, and the other two interfaces of the tee pipe are respectively connected to the high-temperature flue gas discharge pipe 6 and the exhaust branch pipe 4.

[0023] In the initial carbonization stage and the full carbonization stage, high-temperature gas is generated in one of the modular carbonization furnace bodies 3, and the high-temperature gas can be transported to the high-temperature flue gas collection and combustion flue 2 through the high-temperature flue gas discharge pipe 6. The high-temperature gas can be transported to other modular carbonization furnace bodies 3 in the drying stage, so as to dry and dehydrate and pre-carbonize the material. The high-temperature flue gas collection and combustion flue 2 is equipped with a high-temperature resistant fan 15, and a waste heat recovery device 16 is provided on the high-temperature flue gas collection and combustion flue 2 to recover the excess heat.

[0024] A third control valve 9 is provided on the waste gas recovery pipe system 7. The waste gas recovery pipe system 7 is used to transport the high-temperature gas in the high-temperature flue gas collection and combustion flue 2 to the second modular carbonization furnace body to dry and dehydrate and pre-carbonize the material in the second modular carbonization furnace body. High-temperature gas is generated in the modular carbonization furnace body 3 in the carbonization stage, and the high-temperature gas is transported to the high-temperature flue gas collection and combustion flue 2. Through the waste gas recovery pipe system 7, the high-temperature gas can be transported to the modular carbonization furnace body 3 in the drying stage to realize the recycling of the high-temperature gas. The high-temperature gas preheats and dries the material, which is convenient for the carbonization of the material.

[0025] The utility model uses the waste gas recovery pipe system 7 to convey the high-temperature flue gas in the combustion flue 2 of the high-temperature flue gas to the module carbonization furnace body 3 to participate in the material drying, which can realize the recycling of the high-temperature flue gas, improve the heat utilization rate of the high-temperature flue gas, reduce the fuel use of the module carbonization furnace body 3, facilitate low-energy consumption production, and reduce the production cost.

[0026] It should be noted that the number of the module carbonization furnace bodies 3 in the utility model can be set according to actual needs. Figure 3 The structure of multiple module carbonization furnace bodies 3 is shown in the figure. At least one of the multiple module carbonization furnace bodies 3 is in the drying stage, and at least one of the module carbonization furnace bodies 3 is in the carbonization stage. Thus, the high-temperature gas in the carbonization stage is conveyed to the module carbonization furnace body 3 in the drying stage, which is beneficial to the carbonization of the material.

[0027] In one embodiment, the module carbonization furnace body 3 includes a module furnace body. A box door is arranged on one side of the module furnace body. A refractory insulation layer is arranged on the inner wall of the module furnace body. Support feet are arranged at the bottom of the module furnace body. A carbonization area and a combustion area flue are arranged inside the module furnace body. A slide rail for conveying materials is arranged in the carbonization area. The module carbonization furnace body 3 adopts the structural design of a container, which is convenient for the transportation of each module carbonization furnace body 3. The slide rail is arranged in the carbonization area, and the materials can be placed in the transport vehicle. The transport vehicle is slidably matched with the slide rail, and the whole transport vehicle is placed in the carbonization area, which improves the carbonization efficiency of the materials. In order to facilitate the movement of the module furnace body, lifting lugs 13 are arranged on the module furnace body.

[0028] As Figure 2 shown, specifically, the module furnace body includes a furnace bottom component 10, a carbonization furnace box body module 11, a furnace cover 12 and a furnace top connection component. The furnace bottom component 10 and the furnace cover 12 are respectively arranged at the bottom and the top of the carbonization furnace box body module 11, and the furnace top connection component is arranged at the top of the furnace cover 12. Among them, the carbonization furnace box body module 11 includes a front side plate, a right side plate, a rear side plate and a left side plate. The front side plate, the right side plate, the rear side plate and the left side plate are connected end to end to form an annular structure.

[0029] The existing module carbonization furnace bodies 3 are basically of an integral structure design. When transporting, only a few module carbonization furnace bodies 3 can be transported by one vehicle, resulting in troublesome transportation of the module carbonization furnace bodies 3. The utility model designs the module carbonization furnace body 3 as a plate assembly structure. Only the respective plates need to be transported and assembled on site. A large number of module carbonization furnace bodies 3 can be transported by one vehicle, which can effectively improve the transportation efficiency of the module carbonization furnace bodies 3.

[0030] When the utility model is in use, taking two module carbonization furnace bodies 3 as an example, the first module carbonization furnace body is in the carbonization stage, and the second module carbonization furnace body is in the drying stage. The first control valve 5 and the third control valve 9 matched with the first module carbonization furnace body are both in a closed state, and the second control valve 8 is in an open state, so that the high-temperature gas of the first module carbonization furnace body can be transported to the high-temperature flue gas collection and combustion flue 2; at the same time, the first control valve 5 and the third control valve 9 matched with the second module carbonization furnace body are both in an open state, and the second control valve 8 is in a closed state, and the high-temperature gas of the high-temperature flue gas collection and combustion flue 2 enters the second module carbonization furnace body through the residual gas recovery pipe system 7, thereby drying, dehydrating and pre-carbonizing the material of the second module carbonization furnace body, and the moisture generated by the drying of the material is transported to the moisture exhaust pipe 1 through the exhaust branch pipe 4, and the moisture of the module carbonization furnace body 3 is discharged in time through the moisture exhaust pipe 1.

[0031] The utility model can recycle the high-temperature flue gas generated by the modular carbonization furnace body 3 during the carbonization process, which can not only provide energy for material drying, but also reduce the pollution to the atmosphere caused by direct exhaust gas emission, thereby reducing production energy consumption and reducing enterprise production costs.

[0032] In the description of the present utility model, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. In the absence of mutual contradictions, those skilled in the art may combine the features of different embodiments. The scope of protection of the present utility model is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present utility model, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the scope of protection of the present utility model.

Claims

1. A modular quick-installation carbonization furnace, characterized in that It includes a moisture exhaust pipe (1), a high-temperature flue gas collection and combustion flue (2), and at least two modular carbonization furnace bodies (3). An exhaust branch pipe (4) is provided between each modular carbonization furnace body (3) and the moisture exhaust pipe (1), and a first control valve (5) is provided on the exhaust branch pipe (4); between each modular carbonization furnace body (3) and the high-temperature flue gas collection and combustion flue (2), a high-temperature flue gas discharge pipe (6) and a residual gas recovery pipe system (7) are provided. A second control valve (8) is provided on the high-temperature flue gas discharge pipe (6), and the high-temperature flue gas discharge pipe (6) is used to transport the high-temperature gas of the first modular carbonization furnace body to the high-temperature flue gas collection and combustion flue (2); a third control valve (9) is provided on the residual gas recovery pipe system (7), and the residual gas recovery pipe system (7) is used to transport the high-temperature gas in the high-temperature flue gas collection and combustion flue (2) to the second modular carbonization furnace body to dry and dehydrate and pre-carbonize the materials in the second modular carbonization furnace body.

2. The modular quick-installation carbonization furnace according to claim 1, characterized in that, The modular carbonization furnace body (3) includes a modular furnace body. A box door is provided on one side of the modular furnace body, and a carbonization area and a combustion area flue are provided inside the modular furnace body. A slide rail for transporting materials is provided in the carbonization area.

3. The modular quick-assembly carbonization furnace according to claim 2, wherein The modular furnace body includes a furnace bottom component (10), a carbonization furnace box body module (11), a furnace cover (12), and a furnace top connection component. The furnace bottom component (10) and the furnace cover (12) are respectively arranged at the bottom and top of the carbonization furnace box body module (11), and the furnace top connection component is arranged on the top of the furnace cover (12).

4. The modular quick-installation carbonization furnace according to claim 3, characterized in that, The carbonization furnace box body module (11) includes a front side plate, a right side plate, a rear side plate, and a left side plate. The front side plate, the right side plate, the rear side plate, and the left side plate are connected end to end to form an annular structure.

5. The modular quick-installation carbonization furnace according to claim 3, wherein Lifting lugs (13) are provided on the furnace top connection component.

6. The modular quick-installation carbonization furnace according to claim 2, characterized in that, The inner wall of the modular furnace body is provided with a refractory insulation layer.

7. The modular quick-installation carbonization furnace according to claim 2, characterized in that, Support feet are provided at the bottom of the modular furnace body.

8. The modular quick-installation carbonization furnace according to claim 1, characterized in that, The moisture exhaust pipe (1) is equipped with a moisture exhaust fan (14).

9. The modular quick-installation carbonization furnace according to claim 1, wherein, The high-temperature flue gas collection and combustion flue (2) is equipped with a high-temperature resistant fan (15).

10. The modular quick-installation carbonization furnace according to claim 1, characterized in that, A waste heat recovery device (16) is provided on the high-temperature flue gas collection and combustion flue (2).

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