Airflow carbonization furnace combustion treatment system and combustion treatment method

Abstract

The present application discloses a combustion treatment system and a combustion treatment method for an airflow carbonization furnace. The combustion treatment system includes a gas circulation pipeline, a moisture removal pipeline, and several carbonization furnaces, each of which is provided with an air inlet, an air recovery port, and a water vapor exhaust port; the gas circulation pipeline includes a gas supply main pipe, a recovery supply main pipe, several gas recovery branches, and a first fan; the gas recovery branch pipe is connected to the recovery supply main pipe, and one gas recovery branch pipe is connected to the air recovery port on a carbonization furnace; the air outlet port of the first fan is connected to the gas supply main pipe, and the return air port of the first fan is connected to the recovery supply main pipe; the moisture removal pipeline includes a second fan, a moisture removal main pipe connected to the second fan, and a moisture removal branch pipe, each moisture removal branch pipe being connected to the water vapor exhaust port on a carbonization furnace. The combustion treatment system provided by the present application realizes the recycling and circulation supply of gas, reduces the gas supply demand during the combustion process, and also avoids energy waste and saves production costs.

Description

Technical Field

[0001] The present application relates to the technical field of airflow carbonization furnaces, and in particular to a combustion treatment system and a combustion treatment method of an airflow carbonization furnace. Background Art

[0002] Charcoal is widely used in the metallurgical industry, such as steelmaking and copper processing, and is also important for its safety and environmental benefits. Its primary civilian use is for barbecues and heating. Traditionally, charcoal production involves burning in earthen kilns, which requires the felling of large quantities of trees and severely damages forest vegetation. Given the deteriorating air quality in our living environment, this method has been banned. With technological advancements, charcoal is now mostly produced using carbonization furnaces. For example, a monolithic carbonization furnace features a hollow furnace body constructed from steel plates, with a sealed carbonization chamber installed within the furnace and a hearth at the bottom. To make charcoal, wooden or artificial sticks are first arranged in the carbonization chamber. The sealed door is then closed, and the combustion of fuel within the furnace heats the chamber, carbonizing the sticks.

[0003] The typical carbonization furnace operation process can be summarized as follows: 1. The drying stage, starting from ignition, gradually raises the furnace temperature to 160°C. During this stage, the moisture contained in the wood is evaporated primarily by external heat and the heat generated by the combustion of the wood itself, leaving the chemical composition of the wood largely unchanged. 2. The initial carbonization stage, which primarily relies on the heat generated by the combustion of the wood itself, raises the furnace temperature to between 160 and 280°C. Thermal decomposition of the wood material occurs, and its composition begins to change. Unstable components, such as hemicellulose, decompose to produce CO2, CO, and a small amount of acetic acid. 3. The full carbonization stage, which reaches temperatures of 280 to 400°C, undergoes rapid thermal decomposition, producing large amounts of liquid products such as acetic acid, methanol, and wood tar. In addition, combustible gases such as methane and ethylene are produced, which combust within the furnace. The thermal decomposition and gas combustion generate a large amount of heat, raising the furnace temperature and allowing the wood material to dryly distill into charcoal at high temperatures.

[0004] During the combustion process in carbonization furnaces, the supplied gas often fails to burn fully. This results in the unused gas being discharged along with the gases produced after the combustion reaction after the reaction, resulting in energy waste. Furthermore, after the combustible gases produced during the combustion process are discharged, some are used to fuel other facilities, some are directly discharged into the atmosphere, and some are collected and centrally treated before being discharged into the atmosphere, increasing the cost of post-processing the combustible gases after the combustion reaction.

[0005] Therefore, it is urgent to propose a new technical solution to solve the problems existing in the existing technology. Summary of the Invention

[0006] The present application provides an air flow carbonization furnace combustion treatment system and a combustion treatment method, which are used to solve the problems of large gas supply demand and energy waste in the combustion process of the carbonization furnace in the prior art.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] On the one hand, the present application provides an airflow carbonization furnace combustion treatment system, comprising a gas circulation pipeline, a moisture removal pipeline, and a plurality of airflow carbonization furnaces arranged in sequence, wherein:

[0009] Each of the airflow carbonization furnaces is provided with an air inlet, an air recovery port and a water vapor exhaust port;

[0010] The gas circulation pipeline includes a gas supply main, a recovery supply main, several gas recovery branch pipes, and a first fan; several gas recovery branch pipes are respectively connected to the recovery supply main, and one gas recovery branch pipe is connected to a gas recovery port on an air flow carbonization furnace; the first fan includes an outlet port and a return port, the outlet port is connected to the gas supply main, the gas supply main is connected to the air inlet, and the return port is connected to the recovery supply main; the gas circulation pipeline is also provided with several valves;

[0011] The dehumidification pipeline includes a second fan, a dehumidification main pipe connected to the second fan, and a plurality of dehumidification branches respectively connected to the dehumidification main pipe. Each of the dehumidification branches is connected to a water vapor outlet on an air flow carbonization furnace.

[0012] The above technical solution further provides that one end of the gas supply main pipe is a closed end, and the other end is connected to the gas outlet port; the gas supply main pipe is provided with a plurality of gas supply branches connected thereto, one gas supply branch pipe is connected to an air inlet, and a valve is provided on the gas supply branch pipe, and the valve is used to realize the gas intake control of the air flow carbonization furnace.

[0013] Furthermore, it includes at least two of the air flow carbonization furnaces, which are a first air flow carbonization furnace and a second air flow carbonization furnace respectively; the air inlet of the first air flow carbonization furnace is connected to the gas supply main pipe through an air supply branch pipe, and the air outlet recovery port of the first air flow carbonization furnace is connected to the recovery supply main pipe through a gas recovery branch pipe; the air inlet of the second air flow carbonization furnace is connected to the gas supply main pipe through an air supply branch pipe, and the air outlet recovery port of the second air flow carbonization furnace is connected to the recovery supply main pipe through a gas recovery branch pipe; when the gas supply main pipe supplies gas to the first air flow carbonization furnace, the gas enters the first air flow carbonization furnace to participate in combustion, and the reaction gas generated after combustion and the gas that does not participate in combustion are sent into the recovery supply main pipe from the air outlet recovery port of the first air flow carbonization furnace, and after being sent into the gas supply main pipe by the first fan, they are sent into the second air flow carbonization furnace to participate in combustion, realizing the recovery and circulation supply of gas.

[0014] Furthermore, a valve is provided on the gas recovery branch pipe, and the valve is used to realize the conduction or blocking of the gas recovery outlet and the recovery supply main pipe.

[0015] Furthermore, the gas recovery port is arranged at the top of the air flow carbonization furnace, the recovery supply main pipe is placed horizontally in front of several sequentially arranged air flow carbonization furnaces, and the gas recovery branch pipe includes multiple return air pipe sections connected in sequence by bends.

[0016] Furthermore, the second fan has an inlet and an outlet; one end of the dehumidification main pipe is connected to the inlet, and the other end is a closed end; the outlet of the second fan is connected to an output pipe section, and the output pipe section discharges the water vapor output from the dehumidification main pipe to the target location.

[0017] Furthermore, each of the moisture drainage branch pipes is provided with a valve.

[0018] Furthermore, the dehumidification branch pipe is arranged obliquely, and the vertical height of one end of the dehumidification branch pipe connected to the water vapor outlet is higher than the vertical height of one end of the dehumidification branch pipe connected to the dehumidification main pipe.

[0019] On the other hand, the present application also provides a combustion treatment method of an air flow carbonization furnace, which adopts the above-mentioned air flow carbonization furnace combustion treatment system, and the air flow carbonization furnace combustion treatment method includes:

[0020] Arrange several airflow carbonization furnaces in sequence, arrange the gas circulation pipeline and the moisture removal pipeline according to the position of the airflow carbonization furnaces, connect the air inlet of each airflow carbonization furnace to the gas supply main pipe, connect the gas recovery port of each airflow carbonization furnace to the recovery supply main pipe, and connect the water vapor exhaust port of each airflow carbonization furnace to the moisture removal pipeline;

[0021] Gas is supplied to an air flow carbonization furnace through the gas supply main pipe, and the gas enters the air flow carbonization furnace to participate in combustion. The reaction gas generated after combustion and the gas that does not participate in combustion are sent into the recovery supply main pipe from the gas recovery port of the air flow carbonization furnace, and then sent into the gas supply main pipe through the first fan of the gas circulation pipeline, and then sent to the next air flow carbonization furnace to participate in combustion, thereby realizing the recovery and circulation supply of gas;

[0022] Gas is supplied to an air flow carbonization furnace through the gas supply main pipe, and the gas enters the air flow carbonization furnace to participate in combustion. The water vapor generated after combustion is discharged into the dehumidification pipeline from the water vapor exhaust port of the air flow carbonization furnace and is discharged through the second fan of the dehumidification pipeline.

[0023] Compared with the existing technology, this application has the following beneficial effects:

[0024] 1. The air flow carbonization furnace combustion treatment system provided by the present application includes a gas circulation pipeline, a moisture removal pipeline, and several air flow carbonization furnaces arranged in sequence. The air flow carbonization furnace is provided with an air inlet, an air outlet recovery port and a water vapor exhaust port. The gas circulation pipeline includes a gas supply main pipe, a recovery supply main pipe and several gas recovery branches. The gas supply main pipe can provide gas to the air flow carbonization furnace through the air inlet. The remaining gas that does not participate in the reaction after the gas participates in the combustion and the reaction gas generated after the combustion enter the recovery supply main pipe through the gas outlet recovery port, thereby realizing the recovery of the remaining gas and the combustible gas generated by the reaction. Furthermore, the gas recovered by the recovery supply main pipe is sent to the gas supply main pipe through the first fan, and then sent to the next air flow carbonization furnace, and so on, realizing the recovery and circulation supply of the gas, reducing the gas supply demand during the combustion process of the air flow carbonization furnace, and at the same time avoiding the energy waste of the reaction gas generated after the combustion, reducing the post-processing cost of the reaction gas generated after the combustion, making full use of resources, and saving production costs.

[0025] 2. Based on the above-mentioned air flow carbonization furnace combustion treatment system, the present application also provides an air flow carbonization furnace combustion treatment method, which realizes the recycling of the reaction gas generated after combustion and the gas that does not participate in the combustion through the gas circulation pipeline, realizes the recovery and circulation supply of the gas, reduces the gas supply demand during the combustion process of the air flow carbonization furnace, realizes the recycling of energy, and reduces the post-processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, based on the technical concepts and exemplary drawings disclosed in this application, those skilled in the art are able to easily make routine adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, and dimensional ratios of certain units (components).

[0027] Figure 1 This is a schematic diagram of the system flow of the airflow carbonization furnace combustion treatment system provided by the present application in one embodiment, in which only the gas circulation pipeline is shown;

[0028] Figure 2 This is a front view structural diagram of an airflow carbonization furnace combustion treatment system provided by the present application in one embodiment;

[0029] Figure 3 for Figure 2 Schematic diagram of the top view structure;

[0030] Figure 4 for Figure 2 Schematic diagram of the left view structure;

[0031] Figure 5 This is a schematic diagram of the system flow of the airflow carbonization furnace combustion treatment system provided by the present application in one embodiment, in which only the moisture removal pipeline is shown.

[0032] Description of reference numerals:

[0033] A, first air flow carbonization furnace; B, second air flow carbonization furnace; C, third air flow carbonization furnace; D, fourth air flow carbonization furnace; E, fifth air flow carbonization furnace;

[0034] L1, gas circulation pipeline; L11, gas supply main; L12, recovery supply main; L13, gas recovery branch pipe;

[0035] L2, dehumidification pipeline; L21, dehumidification main pipe; L22, dehumidification branch pipe;

[0036] 1. Air inlet; 2. Air recovery port; 3. Water vapor exhaust port; 4. First fan; 41. Air outlet port; 42. Air return port; 5. Second fan; 6. Valve. DETAILED DESCRIPTION

[0037] The present application will be further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0038] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0039] Terms such as "upper," "lower," "left," "right," and "center" used in this application are generally intended to facilitate intuitive understanding when compared with the accompanying drawings and are not intended to be absolute limitations on positional relationships in actual products. Changes to these relative positional relationships are considered within the scope of this application without departing from the technical concepts disclosed herein.

[0040] Example 1

[0041] To address the high gas demand and energy waste associated with the combustion process in conventional airflow carbonization furnaces, the present application provides a combustion treatment system for an airflow carbonization furnace. The combustion treatment system primarily utilizes a gas circulation and gas recovery supply method to recycle the reaction gases produced after combustion and the gas not involved in combustion, thereby reducing the gas demand during the combustion process. The following describes the combustion treatment system in detail, using the accompanying drawings and examples.

[0042] The present invention provides a combustion treatment system for an airflow carbonization furnace. The combustion treatment system comprises a gas circulation pipeline L1, a moisture removal pipeline L2, and a plurality of sequentially arranged airflow carbonization furnaces. Each airflow carbonization furnace is provided with an air inlet 1, an air recovery port 2, and a moisture outlet 3.

[0043] See also Figure 1 The gas circulation pipeline L1 includes a gas supply main L11, a recovery supply main L12, several gas recovery branch pipes L13, and a first fan 4; several gas recovery branch pipes L13 are respectively connected to the recovery supply main L12, and one gas recovery branch pipe L13 is connected to a gas recovery port 2 on an air flow carbonization furnace; the first fan 4 includes an outlet port 41 and a return port 42, the outlet port 41 is connected to the gas supply main L11, the gas supply main L11 is connected to the air inlet 1, and the return port 42 is connected to the recovery supply main L12; several valves 6 are also provided on the gas circulation pipeline L1.

[0044] See also Figure 5The dehumidification pipeline L2 includes a second fan 5, a dehumidification main pipe L21 connected to the second fan 5, and several dehumidification branch pipes L22 respectively connected to the dehumidification main pipe L21. Each dehumidification branch pipe L22 is connected to a water vapor exhaust port 3 on an air flow carbonization furnace.

[0045] During actual installation and use, one end of the gas supply main L11 can be sealed with a head or flange, and the other end is connected to the gas outlet port 41. To connect each airflow carbonization furnace to the gas supply main L11, the gas supply main L11 is provided with several gas supply branches connected thereto. Each gas supply branch is connected to an air inlet 1. Each gas supply branch is provided with a valve 6 to control the gas intake of the airflow carbonization furnace. Types of valves 6 include, but are not limited to, ball valves, butterfly valves, and globe valves.

[0046] In one embodiment, the airflow carbonization furnace combustion treatment system includes at least two airflow carbonization furnaces. Figure 1 and Figure 2 The illustrated airflow carbonization furnace combustion treatment system includes five airflow carbonization furnaces, namely, the first airflow carbonization furnace A, the second airflow carbonization furnace B, the third airflow carbonization furnace C, the fourth airflow carbonization furnace D, and the fifth airflow carbonization furnace E. The air inlet 1 of the first airflow carbonization furnace A is connected to the gas supply main L11 via a gas supply branch pipe, and the gas recovery port 2 of the first airflow carbonization furnace A is connected to the recovery supply main L12 via a gas recovery branch pipe L13. The air inlet 1 of the second airflow carbonization furnace B is connected to the gas supply main L11 via a gas supply branch pipe, and the gas recovery port 2 of the second airflow carbonization furnace B is connected to the recovery supply main L12 via a gas recovery branch pipe L13. Similarly, each airflow carbonization furnace is connected to the gas supply main L11 and the recovery supply main L12 respectively. Of course, the steam outlet of each airflow carbonization furnace is also connected to the dehumidification pipeline L2.

[0047] When the gas supply main L11 supplies gas to the first air flow carbonization furnace A, the gas enters the first air flow carbonization furnace A and participates in combustion. The reaction gas produced after combustion and the gas (mixed gas) that does not participate in combustion are sent to the recovery supply main L12 from the gas recovery port 2 of the first air flow carbonization furnace A. After being sent to the gas supply main L11 through the first fan 4, it is sent to the second air flow carbonization furnace B to participate in combustion, thus realizing the recovery and circulation of gas. Similarly, the residual gas after the reaction of the mixed gas sent to the second air flow carbonization furnace B can be sent to the third air flow carbonization furnace C. Of course, when the gas supply main L11 transports the mixed gas in the recovered supply main L12 to each air flow carbonization furnace, the first fan 4 can also be used to continuously input gas into the gas supply main L11, thereby increasing the content of gas in the mixed gas and ensuring sufficient combustion reaction in the air flow carbonization furnace. Therefore, the air flow carbonization furnace combustion treatment system provided in the present application realizes the recycling of the reaction gas generated after combustion and the gas that does not participate in combustion through the gas circulation pipeline, realizes the recovery and circulation supply of gas, reduces the gas supply demand during the combustion process of the air flow carbonization furnace, realizes the recycling of energy, and reduces post-processing costs.

[0048] In one embodiment, a valve 6 is provided on the gas recovery branch pipe L13, and the valve 6 is used to connect or block the gas recovery outlet 2 and the recovery supply main pipe L12. Figure 1 The gas circulation pipeline L1 of the airflow carbonization furnace combustion treatment system provided in this application is provided with multiple valves 6. Basically, valves 6 are provided on the pipeline connected to the airflow carbonization furnace's air inlet 1, the pipeline connected to the airflow carbonization furnace's gas recovery port 2, and the pipeline connected to the airflow carbonization furnace's water vapor outlet 3. These valves 6 are used to control the amount of air inlet or outlet. By adjusting the open and closed states of the valves 6, the direction of gas in the gas circulation pipeline L1 of the airflow carbonization furnace combustion treatment system can be controlled, thereby controlling the combustion process of each airflow carbonization furnace.

[0049] It should be noted that the airflow carbonization furnace combustion treatment system provided in this application is equipped with several valves. The functions of these valves are basically similar. They all achieve the conduction or blockage of airflow through the conduction and cutoff states to regulate the gas flow state. By adjusting the valve opening, the valve airflow conductance can also be adjusted to control the gas delivery volume of the combustion reaction. These valves can be of the same or different types, depending on the specific actual application. Therefore, this application does not distinguish between valves on the pipeline.

[0050] In one embodiment, see Figure 2The gas recovery port 2 is located at the top of the airflow carbonization furnace, and the recovery supply main L12 is placed horizontally in front of several sequentially arranged airflow carbonization furnaces. The gas recovery branch pipe L13 consists of multiple return gas pipe sections connected by elbows. This arrangement has fewer pipeline bends, facilitates gas circulation, and provides a clear and reasonable pipeline layout, making it easy to maintain.

[0051] In one embodiment, see Figure 5 The second fan 5 has an inlet and an outlet; one end of the dehumidification main pipe L21 is connected to the inlet, and the other end can be closed with a head or a flange; the outlet of the second fan 5 is connected to an output pipe section, which can discharge the water vapor output from the dehumidification main pipe L21 to the target position, thereby realizing the output of reaction water vapor.

[0052] In one embodiment, in order to facilitate the discharge of water vapor, the dehumidification branch pipe L22 can be arranged at an angle, and the vertical height of the end of the dehumidification branch pipe L22 connected to the water vapor discharge port 3 is higher than the vertical height of the end connected to the dehumidification main pipe L21.

[0053] In summary, the air flow carbonization furnace combustion treatment system provided by the present application includes a gas circulation pipeline, a moisture removal pipeline, and several air flow carbonization furnaces arranged in sequence. The air flow carbonization furnace is provided with an air inlet, an air outlet recovery port and a water vapor outlet. The gas circulation pipeline includes a gas supply main pipe, a recovery supply main pipe, and several gas recovery branches. The gas supply main pipe can provide gas to the air flow carbonization furnace through the air inlet. The residual gas that does not participate in the reaction after the gas participates in the combustion and the reaction gas generated after the combustion enter the recovery supply main pipe through the gas outlet recovery port, thereby realizing the recovery of the residual gas and the combustible gas generated by the reaction. Furthermore, the gas recovered by the recovery supply main pipe is sent to the gas supply main pipe through the first fan, and then sent to the next air flow carbonization furnace, and so on, thereby realizing the recovery and circulation supply of the gas, reducing the gas supply demand during the combustion process of the air flow carbonization furnace, and at the same time avoiding the energy waste of the reaction gas generated after combustion, reducing the post-processing cost of the reaction gas generated after combustion, making full use of resources, and saving production costs.

[0054] Example 2

[0055] Based on the airflow carbonization furnace combustion treatment system provided in Example 1, this embodiment provides an airflow carbonization furnace combustion treatment method, which adopts the above-mentioned airflow carbonization furnace combustion treatment system. The airflow carbonization furnace combustion treatment method includes:

[0056] Arrange several airflow carbonization furnaces in sequence, arrange the gas circulation pipeline L1 and the moisture removal pipeline L2 according to the positions of the airflow carbonization furnaces, connect the air inlet 1 of each airflow carbonization furnace to the gas supply main L11, connect the gas recovery port 2 of each airflow carbonization furnace to the recovery supply main L12, and connect the water vapor exhaust port 3 of each airflow carbonization furnace to the moisture removal pipeline L2;

[0057] Gas is supplied to an air flow carbonization furnace through the gas supply main L11, and the gas enters the air flow carbonization furnace to participate in combustion. The reaction gas generated after combustion and the gas that does not participate in combustion are sent to the recovery supply main L12 from the gas recovery port 2 of the air flow carbonization furnace. After being sent to the gas supply main L11 through the first fan 4 of the gas circulation pipeline L1, they are sent to the next air flow carbonization furnace to participate in combustion, thereby realizing the recovery and circulation supply of gas.

[0058] Gas is supplied to an air flow carbonization furnace through the gas supply main L11, and the gas enters the air flow carbonization furnace to participate in combustion. The water vapor generated after combustion is discharged from the water vapor outlet 3 of the air flow carbonization furnace into the dehumidification pipeline L2, and is guided and discharged through the second fan 5 of the dehumidification pipeline L2.

[0059] The airflow carbonization furnace combustion treatment method provided in this embodiment utilizes the above-mentioned airflow carbonization furnace combustion treatment system. This method achieves the recycling of the reaction gas generated after combustion and the gas not involved in combustion through the gas circulation pipeline, realizing the recycling and supply of gas, reducing the gas supply demand during the airflow carbonization furnace combustion process, achieving energy recycling, and reducing post-processing costs.

[0060] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0061] The present application has been described in a relatively specific and detailed manner through general explanations and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations may be made to these specific embodiments; however, as long as they do not depart from the technical concept of the present application, the technical solutions obtained by such conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. An airflow carbonization furnace combustion treatment system, characterized in that: It includes a gas circulation pipeline, a moisture removal pipeline, and several air flow carbonization furnaces arranged in sequence, among which: Each of the airflow carbonization furnaces is provided with an air inlet, an air recovery port and a water vapor exhaust port; The gas circulation pipeline includes a gas supply main, a recovery supply main, several gas recovery branch pipes, and a first fan; several gas recovery branch pipes are respectively connected to the recovery supply main, and one gas recovery branch pipe is connected to a gas recovery port on an air flow carbonization furnace; the first fan includes an outlet port and a return port, the outlet port is connected to the gas supply main, the gas supply main is connected to the air inlet, and the return port is connected to the recovery supply main; the gas circulation pipeline is also provided with several valves; The dehumidification pipeline includes a second fan, a dehumidification main pipe connected to the second fan, and a plurality of dehumidification branches respectively connected to the dehumidification main pipe, each of the dehumidification branches is connected to a water vapor outlet on the air flow carbonization furnace; The gas supply main pipe is provided with a plurality of gas supply branches connected thereto, one of the gas supply branches is connected to an air inlet, and a valve is provided on the gas supply branch pipe, and the valve is used to realize the gas intake control of the gas flow carbonization furnace; the gas recovery branch pipe is provided with a valve, and the valve is used to realize the conduction or blocking of the gas recovery port and the recovery supply main pipe; each of the moisture removal branches is provided with a valve; Gas is supplied to an air flow carbonization furnace through the gas supply main pipe, and the fuel gas enters the air flow carbonization furnace to participate in combustion. The reaction gas generated after combustion and the fuel gas that does not participate in combustion are sent into the recovery supply main pipe from the gas recovery port of the air flow carbonization furnace. After being sent into the gas supply main pipe through the first fan of the gas circulation pipeline, it is sent to the next air flow carbonization furnace to participate in combustion, thereby realizing the recovery and circulation supply of fuel gas.

2. The airflow carbonization furnace combustion treatment system according to claim 1, characterized in that: One end of the air supply main pipe is a closed end, and the other end is communicated with the air outlet port.

3. The airflow carbonization furnace combustion treatment system according to claim 2, characterized in that: At least two air flow carbonization furnaces are included, and the two air flow carbonization furnaces are respectively a first air flow carbonization furnace and a second air flow carbonization furnace; The air inlet of the first air flow carbonization furnace is connected to the gas supply main pipe through a gas supply branch pipe, and the gas recovery port of the first air flow carbonization furnace is connected to the recovery supply main pipe through a gas recovery branch pipe; the air inlet of the second air flow carbonization furnace is connected to the gas supply main pipe through a gas supply branch pipe, and the gas recovery port of the second air flow carbonization furnace is connected to the recovery supply main pipe through a gas recovery branch pipe; When the gas supply main pipe supplies gas to the first air flow carbonization furnace, the gas enters the first air flow carbonization furnace to participate in combustion, and the reaction gas generated after combustion and the gas that does not participate in combustion are sent into the recovery supply main pipe from the gas recovery port of the first air flow carbonization furnace. After being sent into the gas supply main pipe by the first fan, it is sent into the second air flow carbonization furnace to participate in combustion, thereby realizing the recovery and circulation supply of gas.

4. The airflow carbonization furnace combustion treatment system according to claim 1, characterized in that: The gas recovery port is arranged at the top of the airflow carbonization furnace, the recovery supply main pipe is placed horizontally in front of several sequentially arranged airflow carbonization furnaces, and the gas recovery branch pipe includes multiple return air pipe sections connected in sequence by bends.

5. The airflow carbonization furnace combustion treatment system according to claim 1, characterized in that: The second fan has an inlet and an outlet; one end of the dehumidification main pipe is connected to the inlet, and the other end is a closed end; the outlet of the second fan is connected to an output pipe section, and the output pipe section discharges the water vapor output from the dehumidification main pipe to the target location.

6. The airflow carbonization furnace combustion treatment system according to claim 5, characterized in that: The dehumidification branch pipe is arranged obliquely, and the vertical height of one end of the dehumidification branch pipe connected to the water vapor outlet is higher than the vertical height of one end of the dehumidification branch pipe connected to the dehumidification main pipe.

7. A combustion treatment method of an air flow carbonization furnace, characterized in that: The air flow carbonization furnace combustion treatment system according to any one of claims 1 to 6 is used, and the air flow carbonization furnace combustion treatment method includes: Arrange several airflow carbonization furnaces in sequence, arrange the gas circulation pipeline and the moisture removal pipeline according to the position of the airflow carbonization furnaces, connect the air inlet of each airflow carbonization furnace to the gas supply main pipe, connect the gas recovery port of each airflow carbonization furnace to the recovery supply main pipe, and connect the water vapor exhaust port of each airflow carbonization furnace to the moisture removal pipeline; Gas is supplied to an air flow carbonization furnace through the gas supply main pipe, and the gas enters the air flow carbonization furnace to participate in combustion. The reaction gas generated after combustion and the gas that does not participate in combustion are sent into the recovery supply main pipe from the gas recovery port of the air flow carbonization furnace, and then sent into the gas supply main pipe through the first fan of the gas circulation pipeline, and then sent to the next air flow carbonization furnace to participate in combustion, thereby realizing the recovery and circulation supply of gas; Gas is supplied to an air flow carbonization furnace through the gas supply main pipe, and the gas enters the air flow carbonization furnace to participate in combustion. The water vapor generated after combustion is discharged into the dehumidification pipeline from the water vapor exhaust port of the air flow carbonization furnace and is discharged through the second fan of the dehumidification pipeline.

Images