Oxygen-enriched combustion coupling flue gas recycling test system

Abstract

The embodiment of the invention provides an oxygen-enriched combustion coupling flue gas recycling test system. The oxygen-enriched combustion coupling flue gas recycling test system comprises a combustion device, a gas pipeline, a flue device, a combustion-supporting gas conveying device, a carbon-containing material supply device, a measuring device and a recording device. The combustion device comprises a vertical flame path, and the gas pipeline conveys gas to the vertical flame path. The flue device comprises a flue and a flue gas pipeline, the flue is connected with the vertical flame path and the flue gas pipeline, a flue gas recycling reaction space is arranged in the flue, and the flue is provided with a carbon-containing material feeding hole communicated with the reaction space. The combustion-supporting gas conveying device comprises a combustion-supporting gas header pipe, a first combustion-supporting gas branch and a second combustion-supporting gas branch, the first combustion-supporting gas branch conveys combustion-supporting gas to the vertical flame path, and the second combustion-supporting gas branch conveys combustion-supporting gas to the flue gas recycling reaction space. According to the oxygen-enriched combustion coupling flue gas recycling test system, coupling of combustion and recycling reaction is achieved, and oxygen-enriched combustion and flue gas recycling reaction tests can be conducted at the same time.

Description

Technical Field

[0001] This invention relates to the field of coking technology, and in particular to an oxygen-enriched combustion coupled flue gas resource utilization test system. Background Technology

[0002] In China's coking industry, while the capacity structure has been continuously optimized and industry concentration has significantly increased, and energy conservation and emission reduction have yielded remarkable results, many challenges remain. On the one hand, with increasingly stringent national regulations on energy conservation, emission reduction, and low-carbon production, the coking industry, as a key area of ​​energy consumption and carbon emissions, urgently needs to explore efficient and low-carbon production models. On the other hand, declining market demand for coke and widening industry losses are forcing companies to seek new technological paths to reduce costs and improve competitiveness. Meanwhile, the collaboration between coking and steel hydrogen metallurgy shows promising development prospects. The blast furnace-converter long process, with its main technology route, consumes enormous amounts of energy and emits huge amounts of carbon. Hydrogen metallurgy uses hydrogen instead of carbon as a reducing agent, with water as the reduction product, which can significantly reduce carbon dioxide emissions and is an important path for the steel industry to achieve a green and low-carbon transformation.

[0003] In existing technologies, traditional coking processes suffer from low energy efficiency and high carbon emissions. Conventional combustion systems cannot achieve coordinated control of oxygen-enriched combustion and flue gas resource recovery, lacking precise means to regulate combustion parameters and flue gas reaction conditions. Particularly in the flue gas resource recovery process, it is difficult to achieve dynamic balance among multiple parameters such as reaction temperature, gas composition, and material supply, leading to unstable syngas yield and quality. Furthermore, existing systems lack comprehensive measurement and control devices, failing to provide sufficient data support for process optimization.

[0004] Against this backdrop, a process route for oxygen-enriched coking coupled with flue gas resource utilization has emerged. This method uses the heat from the combustion of oxygen-enriched coal gas to provide the heat required for coking. After combustion, the high-temperature flue gas, due to the reduction of N2, is rich in H2O and CO2. This high-temperature flue gas is then mixed with carbonaceous materials such as pulverized coal to undergo coal gasification or activation reactions, generating effective gases CO and H2. The flue gas, rich in effective syngas, is then purified and separated to extract CO and H2. The produced H2 and CO syngas can be widely used in other fields. Summary of the Invention

[0005] The purpose of this invention is to provide an oxygen-enriched combustion coupled flue gas resource recovery test system to facilitate the study of oxygen-enriched combustion coupled flue gas resource recovery control technology. The specific technical solution is as follows:

[0006] An oxygen-enriched combustion coupled flue gas resource utilization test system includes:

[0007] Combustion device, including vertical combustion chamber;

[0008] A gas pipeline, the gas outlet of which leads into the vertical fire channel;

[0009] A flue system includes a flue and a flue gas duct, with the two ends of the flue connected to the vertical fire channel and the flue gas duct, respectively; a flue gas resource utilization reaction space is provided inside the flue, and a carbon-containing material inlet is provided in the flue, with the carbon-containing material inlet connected to the flue gas resource utilization reaction space;

[0010] A combustion-supporting gas conveying device includes a combustion-supporting gas main pipe, a first combustion-supporting gas branch pipe, and a second combustion-supporting gas branch pipe. The inlet of the combustion-supporting gas main pipe is connected to the inlet of the first combustion-supporting gas branch pipe, and the outlet of the first combustion-supporting gas branch pipe can be connected to the vertical fire channel. The inlet of the combustion-supporting gas main pipe is connected to the inlet of the second combustion-supporting gas branch pipe, and the outlet of the second combustion-supporting gas branch pipe can be connected to the flue gas resource utilization reaction space.

[0011] A carbon-containing material supply device, wherein the carbon-containing material outlet is connected to the carbon-containing material inlet hole;

[0012] The measuring device includes a temperature measuring device, a flow measuring device, a pressure measuring device, an oxygen concentration measuring device, and a flue gas composition measuring device. The temperature measuring device is disposed in at least one of the vertical flue, the gas pipeline, the main combustion gas pipe, the first combustion gas branch, the flue gas resource recovery reaction space, and the flue gas pipeline. The flow measuring device is disposed in at least one of the gas pipeline, the main combustion gas pipe, and the first combustion gas branch. The pressure measuring device is disposed in at least one of the gas pipeline, the main combustion gas pipe, the first combustion gas branch, and the flue gas resource recovery reaction space. The oxygen concentration measuring device is disposed in at least one of the main combustion gas pipe and the first combustion gas branch. The flue gas composition measuring device is used to measure the composition of the flue gas before and after the reaction within the flue gas resource recovery reaction space.

[0013] A recording device for recording data measured by the temperature measuring device, the flow measuring device, the pressure measuring device, the oxygen concentration measuring device, and the flue gas composition measuring device.

[0014] In some embodiments, it also includes:

[0015] The control device includes a pressure regulator and a flow regulator. The pressure regulator is disposed in at least one of the gas pipeline, the main combustion gas pipeline, the first combustion gas branch, and the second combustion gas branch. The flow regulator is disposed in at least one of the gas pipeline, the main combustion gas pipeline, the first combustion gas branch, the second combustion gas branch, and the carbon-containing material supply device.

[0016] In some embodiments, it also includes:

[0017] The central control device adjusts the pressure regulator according to preset or user-input instructions to adjust the pressure parameters of at least one of the gas pipeline, the main combustion gas pipe, the first combustion gas branch, and the second combustion gas branch; and / or adjusts the flow regulator to adjust the flow parameters of at least one of the gas pipeline, the main combustion gas pipe, the first combustion gas branch, the second combustion gas branch, and the carbon-containing material supply device.

[0018] In some embodiments, it also includes:

[0019] An oxygen generating device includes an oxygen generator and an oxygen concentration regulator. The outlet of the oxygen generator is connected to the main combustion gas pipe. The central control device adjusts the oxygen concentration regulator according to preset or user-input instructions to adjust the oxygen concentration of the combustion gas output by the oxygen generator.

[0020] In some embodiments, the instruction information includes pressure parameters of at least one of the gas pipeline, the main combustion gas pipe, the first combustion gas branch, and the second combustion gas branch; flow parameters of at least one of the gas pipeline, the main combustion gas pipe, the first combustion gas branch, the second combustion gas branch, and the carbon-containing material supply device; and oxygen concentration of the combustion gas output by the oxygen generator.

[0021] In some embodiments, it also includes:

[0022] Gas collection device;

[0023] Desulfurization and denitrification equipment;

[0024] The reaction gas heat recovery and separation device is connected to the flue gas pipeline, the gas collection device and the desulfurization and denitrification device respectively. It is used to exchange the high-temperature mixed flue gas discharged from the flue gas pipeline into low-temperature flue gas, and then separate CO and H2 in it and send it to the gas collection device. The separated waste gas is sent to the desulfurization and denitrification device.

[0025] In some embodiments, the gas pipeline includes a main gas pipe and multiple gas branches, the inlets of the main gas pipe and the multiple gas branches are connected, and the outlets of the multiple gas branches are respectively connectable to different height positions of the vertical flue; or,

[0026] The gas pipeline is connected to the top of the vertical flue.

[0027] In some embodiments, the carbon-containing material supply device includes: a material processor, a material controller, and a material feeder connected in sequence;

[0028] The material processor is used to crush, screen, and dry the input carbon-containing material before feeding it into the material controller. The material controller is used to receive the carbon-containing material processed by the material processor. The central control device controls the material controller to adjust at least one parameter of the flow rate and temperature of the processed carbon-containing material according to preset or user-input instructions. The material feeder is used to transport the carbon-containing material regulated by the material controller to the flue gas resource utilization reaction space.

[0029] In some embodiments, it also includes:

[0030] A gas pretreatment device, the outlet of which is connected to the gas inlet of the gas pipeline, is used to pretreat the input gas, remove at least one of dust, tar, and water vapor from the gas, and / or heat the gas, and / or blend the gas with other substances.

[0031] In some embodiments, the combustion device further includes: a cooling fan, an air volume controller, and a hollow interlayer, the hollow interlayer being disposed around the periphery of the vertical fire channel; the hollow interlayer being provided with a first ventilation opening and a second ventilation opening communicating with the outside, the cooling fan being disposed at the first ventilation opening;

[0032] The air volume controller is used to adjust the air volume of the cooling fan to change with the heat absorption of the simulated coal coking process.

[0033] Beneficial effects of the embodiments of the present invention:

[0034] The oxygen-enriched combustion coupled flue gas resource recovery experimental system provided in this invention includes a combustion device, a gas pipeline, a flue system, a combustion-supporting gas conveying device, a carbon-containing material supplying device, a measuring device, and a recording device. The combustion device includes a vertical combustion chamber, to which the gas pipeline delivers gas. The flue system includes a flue and a flue gas pipeline, the flue connecting the vertical combustion chamber and the flue gas pipeline. A flue gas resource recovery reaction space is provided within the flue, and a carbon-containing material inlet is provided in the flue, communicating with the reaction space. The combustion-supporting gas conveying device includes a main combustion-supporting gas pipe, a first combustion-supporting gas branch, and a second combustion-supporting gas branch. The first combustion-supporting gas branch delivers combustion-supporting gas to the vertical combustion chamber, and the second combustion-supporting gas branch delivers combustion-supporting gas to the flue gas resource recovery reaction space. The carbon-containing material supplying device delivers carbon-containing material to the carbon-containing material inlet. The measuring device includes a temperature measuring instrument, a flow measuring instrument, a pressure measuring instrument, an oxygen concentration measuring instrument, and a flue gas composition measuring instrument. The temperature measuring instrument is installed in the vertical flue, gas pipeline, main combustion gas pipe, first combustion gas branch, flue gas resource recovery reaction space, and flue gas pipeline. The flow measuring instrument is installed in the gas pipeline, main combustion gas pipe, and first combustion gas branch. The pressure measuring instrument is installed in the gas pipeline, main combustion gas pipe, first combustion gas branch, and flue gas resource recovery reaction space. The oxygen concentration measuring instrument is installed in the main combustion gas pipe and first combustion gas branch. The flue gas composition measuring instrument is used to measure the composition of flue gas before and after the reaction in the flue gas resource recovery reaction space. The recording device is used to record the data measured by the temperature measuring instrument, flow measuring instrument, pressure measuring instrument, oxygen concentration measuring instrument, and flue gas composition measuring instrument. This oxygen-enriched combustion coupled flue gas resource recovery test system realizes the coupling of combustion and resource recovery reaction, and can simultaneously conduct oxygen-enriched combustion and flue gas resource recovery reaction tests.

[0035] Of course, implementing any product or method of the present invention does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0037] Figure 1 A schematic diagram of the structure of an oxygen-enriched combustion coupled flue gas resource utilization test system provided in this application embodiment;

[0038] Figure 2 for Figure 1 A cross-sectional schematic diagram of the oxygen-enriched combustion coupled flue gas resource utilization test system shown.

[0039] Figure 3 for Figure 1The diagram shows the workflow of the oxygen-enriched combustion coupled flue gas resource utilization test system.

[0040] The attached figures are labeled as follows:

[0041] Combustion device 1, vertical flue 11, hollow sandwich 12, refractory material layer 13, heat insulation material layer 14, supporting inner shell 15, supporting outer shell 16, gas pipeline 2, gas pretreatment device 21, flue device 3, flue 31, flue gas resource utilization reaction space 311, carbon-containing material inlet 312, flue gas pipeline 32, combustion gas conveying device 4, combustion gas main pipe 41, first combustion gas branch 42, second combustion gas branch 43, carbon-containing material supply device 5, material processor 51, material controller 52, material feeder 53, measuring device 6, recording device 7, oxygen generating device 8, gas collecting device 91, desulfurization and denitrification device 92, reaction gas heat recovery and separation device 93, gas control sub-device 101, oxygen-enriched gas control sub-device 102, oxygen-enriched gas distribution sub-device 103, operating device 110, operating platform 111, supporting leg 112, ladder 113. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art based on this application are within the scope of protection of the present invention.

[0043] To facilitate research on oxygen-enriched combustion coupled with flue gas resource utilization control technology Figure 1 This is a schematic diagram of the structure of an oxygen-enriched combustion coupled flue gas resource utilization test system provided in an embodiment of this application. Figure 2 for Figure 1 The diagram shows a cross-sectional view of the oxygen-enriched combustion coupled flue gas resource utilization test system. Figure 3 for Figure 1 The schematic diagram of the working process of the oxygen-enriched combustion coupled flue gas resource utilization test system shown is as follows: Figure 1 , Figure 2 and Figure 3As shown, this application proposes an oxygen-enriched combustion coupled flue gas resource recovery test system, including a combustion device 1, a gas pipeline 2, a flue system 3, a combustion-supporting gas conveying device 4, a carbon-containing material supplying device 5, a measuring device 6, and a recording device 7. The combustion device 1 includes a vertical combustion chamber 11, to which the gas pipeline 2 conveys gas. The flue system 3 includes a flue 31 and a flue gas pipeline 32. The flue 31 connects the vertical combustion chamber 11 and the flue gas pipeline 32. A flue gas resource recovery reaction space 311 is provided within the flue 31, and a carbon-containing material inlet 312 communicates with the reaction space. The combustion-supporting gas conveying device 4 includes a main combustion-supporting gas pipe 41, a first combustion-supporting gas branch 42, and a second combustion-supporting gas branch 43. The first combustion-supporting gas branch 42 conveys combustion-supporting gas to the vertical combustion chamber 11, and the second combustion-supporting gas branch 43 conveys combustion-supporting gas to the flue gas resource recovery reaction space 311. The carbon-containing material supply device 5 transports the carbon-containing material to the carbon-containing material inlet 312. The measuring device 6 includes a temperature measuring device, a flow measuring device, a pressure measuring device, an oxygen concentration measuring device, and a flue gas composition measuring device. The temperature measuring device is installed in the vertical flue 11, the gas pipeline 2, the main combustion gas pipe 41, the first combustion gas branch 42, the flue gas resource utilization reaction space 311, and the flue gas pipeline 32. The flow measuring device is installed in the gas pipeline 2, the main combustion gas pipe 41, and the first combustion gas branch 42. The pressure measuring device is installed in the gas pipeline 2, the main combustion gas pipe 41, the first combustion gas branch 42, and the flue gas resource utilization reaction space 311. The oxygen concentration measuring device is installed in the main combustion gas pipe 41 and the first combustion gas branch 42. The flue gas composition measuring device is used to measure the composition of the flue gas before and after the reaction in the flue gas resource utilization reaction space 311. The recording device 7 is used to record the data measured by the temperature measuring device, the flow measuring device, the pressure measuring device, the oxygen concentration measuring device, and the flue gas composition measuring device.

[0044] Flow regulators, such as flow control valves, are used to regulate the flow rate of coal gas and combustion-supporting gases, precisely controlling the amount of fuel and combustion-supporting gases entering the vertical combustion chamber 11, and enabling tests under different flow ratio conditions. Flow meters can be differential pressure type, turbine type, etc.

[0045] Temperature, flow, pressure, oxygen concentration, and flue gas composition measuring instruments monitor various parameters of the combustion process in real time, providing data support for experimental analysis. Thermometers can be thermocouples, resistance thermometers, etc.

[0046] Flow measurement instruments, such as flow meters, are used to measure the flow rate of coal gas and combustion-supporting gases, providing accurate data for adjusting operating parameters.

[0047] Pressure measuring instruments, such as pressure sensors, are used to measure the pressure of coal gas, combustion-supporting gases, and flue gas pressure within flue 31, ensuring stable pressure during gas transport and combustion. Pressure sensors can be flexible pressure gauges, pressure transmitters, etc.

[0048] Oxygen concentration measuring instruments, such as oxygen concentration detectors, are used to monitor the oxygen concentration of combustion-supporting gases in real time to ensure accurate experimental conditions. Oxygen concentration detectors can be instruments based on principles such as electrochemistry and paramagnetism.

[0049] Flue gas component measuring instruments, such as flue gas analyzers, are used to analyze the content of various components in flue gas and study the characteristics of combustion products. Flue gas analyzers can be instruments based on principles such as infrared absorption and electrochemistry.

[0050] During the test of the oxygen-enriched combustion coupled flue gas resource utilization test system, gas pipeline 2 introduces gas into the vertical combustion channel 11, and the first combustion-supporting gas branch 42 introduces oxygen-enriched gas into the vertical combustion channel 11. The two mix and burn in the vertical combustion channel 11 to produce high-temperature flue gas.

[0051] High-temperature flue gas enters the flue gas resource utilization reaction space 311 of flue duct 31 through vertical flue duct 11. The carbon-containing material outlet of carbon-containing material supply device 5 passes through carbon-containing material inlet hole 312 to introduce carbon-containing material into the flue gas resource utilization reaction space 311. The second combustion-supporting gas branch 43 introduces oxygen-enriched gas into the flue gas resource utilization reaction space 311, so that the high-temperature flue gas in the flue gas resource utilization reaction space 311, which is rich in water vapor and CO2 and some incomplete combustion gas components (such as CO, H2, alkanes, etc.), reacts with the carbon-containing material in the flue gas resource utilization reaction space 311 to generate gases such as CO and H2.

[0052] Specifically, the high-temperature flue gas generated by combustion in the flue 11, which is rich in water vapor, CO2, and some incompletely combusted gas components (such as CO, H2, alkanes, etc.), enters the flue gas resource utilization reaction space 311 and reacts with the carbon-containing materials supplied by the carbon-containing material supply device 5 to generate gases such as CO and H2. Through chemical reaction, the components in the flue gas are converted into valuable gases.

[0053] The reaction principle is as follows: Under high temperature conditions, carbon-containing materials undergo a series of chemical reactions with O2, H2O, CO2 and other substances in high-temperature flue gas, such as the water gas reaction of carbon and water vapor (C+H2O=CO+H2 at high temperature), the reaction of carbon and CO2 (C+CO2=2CO at high temperature), and the combustion reaction of carbon and O2 (2C+O2=2CO, C+O2=CO2), generating effective gases such as CO and H2.

[0054] Flue gas reaction process: High-temperature flue gas enters the flue gas resource recovery reaction space 311 (which can be a high-temperature flue 31 constructed of refractory material) from the vertical flue duct 11. Simultaneously, carbonaceous materials enter the flue gas resource recovery reaction space 311 from the carbonaceous material supply device 5, and oxygen-enriched gas is supplied into the flue gas resource recovery reaction space 311. Inside the flue gas resource recovery reaction space 311 (high-temperature flue 31), the carbonaceous materials react with the high-temperature flue gas and O2 under high-temperature conditions to generate gases such as CO and H2.

[0055] In some embodiments, the temperature control device adjusts the flow rate of at least one of the gas pipeline 2, the combustion-supporting gas main pipe 41, the first combustion-supporting gas branch 42, the second combustion-supporting gas branch 43, and the carbon-containing material supply device 5, thereby maintaining the temperature in the high-temperature flue 31 within a predetermined range. For example, when the temperature in the high-temperature flue 31 is greater than a first set threshold, the flow rate of the gas pipeline 2 is reduced; when the temperature in the high-temperature flue 31 is less than the first set threshold, the flow rate of the gas pipeline 2 is increased, so that the temperature in the high-temperature flue 31 is maintained at 900°C to 1200°C.

[0056] Pressure and temperature measuring devices monitor pressure and temperature parameters during the reaction process, while flue gas component measuring devices analyze changes in flue gas composition before and after the reaction. These parameters are transmitted to the central control unit, which adjusts the operation of relevant devices based on the parameters to ensure stable reaction.

[0057] For example, the valves of the flow regulator installed on the main gas pipe 41 and the valves of the flow regulator installed on the gas pipeline 2 are electric or pneumatic proportional regulating valves, which can linearly adjust the opening degree from 0% to 100% according to the control signal.

[0058] If the proportion of CO in the flue gas is less than the set CO proportion threshold, and The proportion is greater than By setting a proportional threshold, the valve opening of the flow regulator installed in the combustion-supporting gas main 41 is reduced, thereby lowering the oxygen-to-carbon ratio. Alternatively, the feed rate of the carbon-containing material supply device 5 is increased, thereby increasing the carbon load.

[0059] If the components of the flue gas The proportion is less than If a set ratio threshold is set and the proportion of CO is greater than the set ratio threshold, the valve opening of the flow regulator installed in gas pipeline 2 is reduced to lower the temperature of the flue gas reaction space.

[0060] During the experiment, a temperature measuring device measured the temperature data in the flue gas duct 11, gas pipeline 2, main combustion gas pipe 41, first combustion gas branch 42, flue gas resource recovery reaction space 311, and flue gas pipeline 32. A flow measuring device measured the flow rate data in the gas pipeline 2, main combustion gas pipe 41, and first combustion gas branch 42. A pressure measuring device measured the pressure data in the gas pipeline 2, main combustion gas pipe 41, first combustion gas branch 42, and flue gas resource recovery reaction space 311. An oxygen concentration measuring device measured the oxygen concentration data in the main combustion gas pipe 41 and first combustion gas branch 42. A flue gas composition measuring device measured the composition data of the flue gas before and after the reaction in the flue gas resource recovery reaction space 311. A recording device 7 recorded the data measured by the temperature measuring device, flow measuring device, pressure measuring device, oxygen concentration measuring device, and flue gas composition measuring device.

[0061] This oxygen-enriched combustion coupled flue gas resource utilization test system realizes the coupling of combustion and resource utilization reaction, and can conduct oxygen-enriched combustion and flue gas resource utilization reaction tests simultaneously.

[0062] Specifically, there are multiple first-stage combustion gas branches 42, and the outlets of these branches 42 can be switched on and off at different heights in the vertical combustion channel 11. Pressure regulators and flow regulators are installed in each of the multiple first-stage combustion gas branches 42. Temperature sensors, flow meters, and pressure sensors are also installed in each of the multiple first-stage combustion gas branches 42. The on / off control of the first-stage combustion gas branches 42 can be achieved through solenoid valves.

[0063] In some embodiments, the pressure regulator and flow regulator installed on the gas pipeline 2 constitute a gas control sub-device 101, and the pressure regulator and flow regulator installed on the combustion-supporting gas main pipe 41 constitute an oxygen-enriched gas control sub-device 102. There are multiple first combustion-supporting gas branches 42, and the pressure regulator and flow regulator installed on each first combustion-supporting gas branch 42 constitute an oxygen-enriched gas distribution sub-device 103.

[0064] The specific working process is as follows: oxygen-enriched combustion-supporting gas enters the flue gas resource utilization reaction space 311 in stages, while coal gas can enter the flue gas resource utilization reaction space 311 either in stages or without stages. The coal gas and combustion-supporting gas come into contact at each stage and undergo a combustion reaction, producing high-temperature flue gas. By segmenting the distribution of oxygen-enriched gas and regulating the flow rate of oxygen-enriched gas and coal gas in each stage, the stability and uniformity of the combustion temperature are controlled, providing a source of high-temperature flue gas for subsequent flue gas resource utilization experiments.

[0065] At the same time, parameters such as the temperature of flue gas at each elevation and the temperature of the bricks on the side wall of the vertical fire channel 11 are monitored to understand the combustion status and ensure the controllability of the combustion process.

[0066] Oxygen-enriched combustion process: Oxygen-enriched gas enters the vertical combustion chamber 11 from the first combustion gas branch 42 and coal gas from the coal gas pipeline 2, respectively. After mixing in the vertical combustion chamber 11, a combustion reaction occurs. The flow regulators corresponding to each of the first combustion gas branches 42 and the coal gas pipeline 2 adjust the output flow of the pipeline according to the instructions of the central control device to achieve segmented combustion control.

[0067] In applications, this oxygen-enriched combustion coupled flue gas resource utilization test system can conduct tests on the effects of different numbers of vertical segments on oxygen-enriched combustion.

[0068] For example, there are 5 first combustion-supporting gas branches 42. In the experiment, three test conditions were set up. For each of these three conditions, the number of vertical sections of the vertical flue 11 of the oxygen-enriched combustion coupled flue gas resource utilization test system was set to 3 (3 first combustion-supporting gas branches 42 open), 4 (4 first combustion-supporting gas branches 42 open), and 5 (5 first combustion-supporting gas branches 42 open), respectively. In all three test conditions, each first combustion-supporting gas branch 42 was supplied with combustion-supporting gas of the same oxygen concentration, and the gas pipeline 2 supplied the same gas composition and delivery volume. The parameters of the gas pipeline 2, the parameters of the combustion-supporting gas main pipe 41, and the allocation ratio of the multiple opened first combustion-supporting gas branches 42 were all the same. The oxygen-enriched combustion coupled flue gas resource utilization test system was started, and combustion tests were conducted under three different numbers of segments. Temperature, flow and pressure measuring instruments, oxygen concentration measuring instruments and flue gas composition measuring instruments were used to measure and record flue gas temperature, flue gas composition and other data under different numbers of segments, and the influence of the number of upper-level segments on oxygen-enriched combustion was analyzed.

[0069] For example, the effect of different combustion-supporting gas flow distribution ratios on oxygen-enriched combustion can be studied. The flow distribution ratio of the combustion-supporting gas in each segment is adjusted by a flow regulator, ensuring that each first combustion-supporting gas branch 42 receives the same oxygen concentration of combustion-supporting gas, and the gas pipeline 2 supplies the same gas composition and delivery volume. The parameters of the gas pipeline 2 and the combustion-supporting gas main pipe 41 remain unchanged. Combustion tests are conducted, and relevant parameters such as temperature, pressure, and flue gas composition are measured. The oxygen-enriched combustion under different flow distribution ratios is then compared.

[0070] Specifically, a control device is installed in the oxygen-enriched combustion coupled flue gas resource utilization test system. This control device includes a pressure regulator and a flow regulator. The pressure regulator is installed at at least one location in the gas pipeline 2, the main combustion-supporting gas pipeline 41, the first combustion-supporting gas branch 42, and the second combustion-supporting gas branch 43, and is used to regulate the pressure parameters in the corresponding pipelines. The flow regulator is installed at at least one location in the gas pipeline 2, the main combustion-supporting gas pipeline 41, the first combustion-supporting gas branch 42, the second combustion-supporting gas branch 43, and the carbon-containing material supply device 5, and is used to regulate the flow parameters in the corresponding pipelines or devices.

[0071] The central control unit sends control commands to the pressure regulator and flow regulator according to preset control logic or test requirements, realizing online remote adjustment of the gas pipeline 2, the main combustion gas pipe 41, the first combustion gas branch 42 and the second combustion gas branch 43, and the carbon-containing material supply device 5. This automated control ensures the stable and precise operation of the entire system under test conditions, thus providing test conditions for the oxygen-enriched coking coupled flue gas resource utilization technology. Different test conditions are used to analyze control experience, verify theoretical models, and guide engineering design.

[0072] Control Process: The central control computer system receives various data such as flow rate, pressure, temperature, oxygen concentration, and gas composition transmitted by the measuring device 6 through the data acquisition interface. The control software displays, records, and stores this data in real time to the data storage device. When it is necessary to adjust the system operating conditions, the operator can set target parameters (such as oxygen-enriched gas flow rate, combustion temperature, etc.) on the central control computer. The control software calculates the corresponding adjustment amount according to the preset control logic (such as PID control) and sends control commands to the regulating devices (such as the flow regulating valve of the combustion gas main pipe 41) of the gas pipeline 2, the combustion-supporting gas main pipe 41, the first combustion-supporting gas branch 42 and the second combustion-supporting gas branch 43, and the carbon-containing material supply device 5. The regulating devices adjust their own state (such as valve opening) according to the commands, thereby changing the relevant system parameters. At the same time, the central control device continuously receives feedback data from the measuring unit and makes real-time adjustments to ensure stable system operation.

[0073] This technical solution allows the outlets of multiple first combustion-supporting gas branches 42 to be connected to different height positions of the vertical combustion channel 11 in a switchable manner. The number of vertical segments of the first combustion-supporting gas branches 42 is adjustable and controllable, thereby enabling precise control of the combustion conditions within the vertical combustion channel 11 and simulating the combustion temperature field distribution under multiple conditions. Simultaneously, with the control device, pressure and flow can be dually regulated to ensure stable operating conditions, and the measuring device 6 provides data support for combustion process analysis through synchronous measurement, achieving flexible adjustment of combustion conditions and comprehensive monitoring of key parameters. Compared with existing technologies, this system has combustion distribution adjustment functions, can flexibly adjust operating conditions, and provides comprehensive and stable measurement parameters, which helps to achieve the experimental purpose of theoretical model verification. The oxygen-enriched combustion coupled flue gas resource utilization test system of this application helps to promote the development and application of oxygen-enriched coking coupled coal gasification technology, meeting the national requirements for energy conservation, carbon reduction, and green development in the industry.

[0074] Furthermore, embodiments of this application also propose that the central control device adjusts the pressure regulator according to preset or user-input instructions to adjust the pressure parameters of at least one of the gas pipeline 2, the main combustion gas pipe 41, the first combustion gas branch 42, and the second combustion gas branch 43; and / or, the central control device adjusts the flow regulator according to preset or user-input instructions to adjust the flow parameters of at least one of the gas pipeline 2, the main combustion gas pipe 41, the first combustion gas branch 42, the second combustion gas branch 43, and the carbon-containing material supply device 5.

[0075] Command information can be entered through host computer software or set through the local control panel.

[0076] The instruction information can simulate various operating conditions of the coke oven. For example, the instruction information includes the pressure parameters in the gas pipeline 2, the main combustion gas pipe 41, the first combustion gas branch 42 and the second combustion gas branch 43, the flow parameters in the gas pipeline 2, the main combustion gas pipe 41, the first combustion gas branch 42, the second combustion gas branch 43 and the carbon-containing material supply device 5, and the oxygen concentration of the combustion gas output by the oxygen generator.

[0077] This technical solution achieves precise control of the combustion reaction and resource recovery process by establishing a complete system of operating parameters. Specifically, pressure parameter regulation ensures the stability of reactant delivery, precise flow parameter control ensures the accuracy of reactant ratios, and oxygen concentration adjustment optimizes combustion efficiency. Through multi-parameter synergistic regulation, this solution can more accurately simulate actual operating conditions, providing a reliable experimental basis for studying combustion characteristics and resource recovery efficiency under different conditions.

[0078] In some embodiments, during different stages of simulated coal coking, the control device can automatically switch between preset command information to achieve staged control of combustion intensity and flue gas composition. Thus, this technical solution, through closed-loop control of pressure and flow parameters, can precisely match the needs of oxygen-enriched combustion and flue gas resource recovery.

[0079] In some embodiments, when simulating different stages of coal coking, the control device can be controlled by user input of command information to achieve staged control of combustion intensity and flue gas composition.

[0080] Furthermore, the oxygen-enriched combustion coupled flue gas resource utilization test system of this application also includes an oxygen generating device 8, which includes an oxygen generator and an oxygen concentration regulator. The outlet of the oxygen generator is connected to the combustion-supporting gas main pipe 41. The central control device adjusts the oxygen concentration regulator according to preset or user-input instructions to adjust the oxygen concentration of the combustion-supporting gas output by the oxygen generator.

[0081] The oxygen generator (which can be selected from pressure swing adsorption oxygen generators, cryogenic oxygen generators, etc., depending on the actual oxygen production process) uses air as raw material and enriches the oxygen in the air through a specially designed oxygen production process to produce oxygen-enriched gas. This provides combustion-supporting gas with different oxygen concentrations (21-93%) for the subsequent oxygen-enriched combustion unit. It is the oxygen source guarantee unit for the entire oxygen-enriched combustion process and lays the foundation for the construction of an oxygen-enriched environment.

[0082] Oxygen generation process: Air is delivered to the oxygen generator through air delivery pipes and valves. The oxygen generator processes the air according to the selected oxygen generation process (such as pressure swing adsorption or cryogenic separation) to enrich the oxygen in it, and then delivers it to the oxygen concentration regulator.

[0083] This technical solution achieves autonomous preparation and flexible allocation of combustion-supporting gas by integrating an oxygen generator 8 into the system. Specifically, the oxygen generator 8 is directly connected to the main combustion-supporting gas pipe 41, and can adjust the oxygen output parameters in real time according to experimental requirements, providing precise and controllable oxidant conditions for the combustion process.

[0084] The pressure regulator and flow regulator receive oxygen-enriched gas from the oxygen generator and precisely adjust the parameters such as the flow rate and pressure of the oxygen-enriched gas to ensure that the parameters of the oxygen-enriched gas meet the requirements of subsequent processes. This provides oxygen-enriched gas with suitable parameters for stable oxygen-enriched combustion and ensures the stability and adaptability of the oxygen supply during the oxygen-enriched combustion process.

[0085] The process of regulating the pressure and flow rate of oxygen-enriched gas: The flow regulator adjusts its opening according to the target flow rate value to change the flow rate of the oxygen-enriched gas; similarly, the pressure regulator adjusts the pressure of the oxygen-enriched gas. The pressure regulator and flow regulator monitor the pressure and flow rate of the oxygen-enriched gas in real time and transmit the data to the central control and recording device 7. The central control device further adjusts the valve openings of the pressure regulator and flow regulator based on the data feedback to ensure that the oxygen-enriched gas parameters meet the requirements.

[0086] Specifically, the oxygen-enriched combustion coupled flue gas resource utilization test system includes a gas collection device 91, a desulfurization and denitrification device 92, and a reaction gas heat recovery and separation device 93. The reaction gas heat recovery and separation device 93 is connected to the flue gas pipeline 32, the gas collection device 91, and the desulfurization and denitrification device 92, respectively. It is used to exchange heat with the high-temperature mixed flue gas discharged from the flue gas pipeline 32 into low-temperature flue gas, and then separate CO and H2 in it and send it to the gas collection device 91. The separated waste gas is sent to the desulfurization and denitrification device 92.

[0087] Specifically, the gas collection device 91 can be a high-pressure gas storage tank or a gas buffer tank to store the separated CO and H2. The desulfurization and denitrification device 92 can effectively remove sulfur oxides and nitrogen oxides from the waste gas.

[0088] The reaction gas heat recovery and separation device 93 includes waste heat recovery devices (such as heat exchangers, waste heat boilers, etc.) and separation devices (such as gas separation membranes, pressure swing adsorption devices, etc.). After the mixed flue gas enters the reaction gas treatment and recovery unit from the flue gas resource utilization reaction space 311, it first passes through the waste heat recovery device, where the mixed flue gas exchanges heat with the cold fluid, recovering the waste heat and reducing the temperature of the mixed flue gas. Then, the mixed flue gas enters the separation device, which separates CO and H2 according to their separation characteristics from other gases. The remaining gas is sent to the desulfurization and denitrification device 92, while the separated CO and H2 are sent to the gas collection device 91. Pressure and temperature measuring devices monitor the pressure and temperature parameters during the treatment process to ensure the stability of the treatment process.

[0089] Furthermore, this application proposes that the gas pipeline 2 includes a main gas pipe and multiple gas branches. The main gas pipe and the inlets of the multiple gas branches are connected, and the outlets of the multiple gas branches can be connected to different height positions of the vertical flue 11, thereby simulating more complex combustion conditions of a coke oven (multi-point gas inlet scheme in the height direction of the vertical flue 11). Specifically, the main gas pipe is used to receive and distribute gas to multiple gas branches. The multiple gas branches can be independently controlled to open or close, and valves are used to open or close each branch. The outlets of the gas branches are connected to different height positions of the vertical flue 11, for example, gas branch outlets are set at the lower, middle and upper parts of the vertical flue 11. As a preferred embodiment, regulating valves can be installed at the gas branch outlets to precisely control the gas flow rate of each branch. Compared with a single gas inlet, the multi-branch design improves the flexibility and controllability of the test system and can more accurately simulate the gas combustion behavior under actual working conditions.

[0090] When the gas pipeline 2 is connected to the top of the vertical fire channel 11, a single path can be used to transport the gas, simplifying the pipeline layout.

[0091] Furthermore, this application proposes that the carbon-containing material supply device 5 includes a material processor 51, a material controller 52, and a material feeder 53 connected in sequence. The material processor 51 is used to crush, screen, and dry the input carbon-containing material before feeding it into the material controller 52. The material controller 52 is used to receive the carbon-containing material processed by the material processor 51. The central control device, according to preset or user-input instructions, controls the material controller 52 to adjust at least one parameter of the processed carbon-containing material's flow rate and temperature. The material feeder 53 is used to transport the carbon-containing material regulated by the material controller 52 to the flue gas resource recovery reaction space 311.

[0092] Specifically, the material processor 51 processes the input carbon-containing materials (such as coal powder, coke powder, etc.) through methods such as crushing (crushing with a crusher), screening (screening with a screening machine), and drying (drying with a dryer). It uses a particle size analyzer and a moisture analyzer to detect parameters such as particle size and moisture content of the processed carbon-containing materials. This ensures that the particle size and moisture content of the carbon-containing materials meet the requirements of the subsequent material controller 52 and material feeder 53, providing qualified carbon-containing materials for the flue gas resource utilization reaction and ensuring that the carbon-containing materials can react fully and efficiently with the high-temperature flue gas in the flue gas reaction unit.

[0093] Material handling process: After the carbon-containing material enters the material processor 51, it is first crushed by a crusher to reduce the particle size; then it enters a screening machine, where the screen filters out materials that meet the particle size requirements, while those that do not meet the requirements are returned to the crusher for further crushing; next, the screened material enters a dryer, where the dryer removes moisture from the material through heating and other methods. Particle size analyzers and moisture analyzers monitor the particle size and moisture content of the processed carbon-containing material in real time to ensure that the material indicators meet the requirements before it is conveyed to the material controller 52.

[0094] Material control process: After the carbon-containing material enters the material controller 52 from the material processor 51, the flow regulator adjusts the opening degree according to the needs of the flue gas reaction unit to control the flow rate of the carbon-containing material. The flow meter monitors the flow parameters of the carbon-containing material in real time and transmits the data to the central control unit. The central control unit adjusts the valve opening degree according to the data so that the flow rate of the carbon-containing material reaches the required level before it is delivered to the material feeder 53.

[0095] Material feeding process: After carbon-containing materials enter the material feeder 53 from the material controller 52, they are conveyed to the flue gas resource utilization reaction space 311 by a conveying device (such as a screw conveyor that propels the material forward by the rotation of the screw blades, or a pneumatic conveying device that carries the material by airflow). The feeding valve controls the timing and flow rate of the carbon-containing materials according to the instructions of the central control, so that the carbon-containing materials enter the flue gas resource utilization reaction space 311 on time and in the correct quantity.

[0096] Furthermore, the oxygen-enriched combustion coupled flue gas resource utilization test system of this application also includes: a gas pretreatment device 21, the outlet of which is connected to the gas inlet of the gas pipeline 2, for pretreating the input gas, removing at least one of dust, tar, and water vapor from the gas, and / or heating the gas, and / or blending the gas with other substances.

[0097] Specifically, the gas pretreatment device 21 pre-treats the input gas, removing impurities (such as dust, tar, and water vapor). It can also heat the gas as needed and blend it with other substances (such as steam) to adapt to different experimental conditions. This ensures the gas meets the requirements of subsequent gas control units, guaranteeing its stable participation in combustion and other processes in these units, and preventing impurities from adversely affecting subsequent equipment and reactions.

[0098] Coal gas pretreatment process: After entering the coal gas pretreatment device 21, the coal gas first passes through a dust collector, where dust is intercepted and removed; then it enters a dryer, where water vapor is separated; then it enters a tar separator, where tar is separated; next, it passes through a heat exchanger to exchange heat with a heat medium or a cold medium, adjusting the coal gas temperature to a suitable range; it can also pass through a blending device to mix the coal gas with other substances to obtain the coal gas components and contents required for the experiment; temperature measuring instruments and pressure measuring instruments monitor the temperature and pressure parameters of the coal gas after pretreatment in real time, ensuring that the coal gas parameters meet the requirements before it is delivered to the coal gas controller.

[0099] Furthermore, this application also proposes that the combustion device 1 further includes a cooling fan, an air volume controller, and a hollow interlayer 12, which is disposed around the periphery of the vertical fire channel 11; the hollow interlayer 12 is provided with a first ventilation opening and a second ventilation opening, and the cooling fan is disposed at the first ventilation opening; the air volume controller is used to adjust the air volume of the cooling fan to change with the stage heat absorption of the simulated coal coking process, for example, the air volume is adjusted according to the heat consumption of coking at different stages, with a large air volume when the heat consumption of coking is high and a small air volume when the heat consumption of coking is low.

[0100] Specifically, the cooling fan can be a centrifugal fan or an axial fan, and its power range is selected according to the size of the vertical fire channel 11 and the cooling requirements.

[0101] The first and second ventilation openings are located at the bottom and top of the interlayer, respectively, forming a convection cooling channel.

[0102] The simulation of coal coking includes the drying and preheating stage, the pyrolysis stage, and the shrinkage and coking stage. To simulate this, the airflow controller is pre-programmed with airflow parameter curves for each stage, thereby simulating the different heat absorption rates in the carbonization chamber at different stages.

[0103] Therefore, this technical solution, through the combination of the hollow sandwich structure 12 and the adjustable cooling scheme, can effectively match the heat dissipation requirements of coal at different coking stages by controlling the air volume in stages, and realizes the real simulation of the different heat absorption of coal on the combustion chamber vertical fire channel 11 at different stages in the carbonization chamber.

[0104] Specifically, the combustion device 1 includes a refractory material layer 13, a heat insulation material layer 14, a supporting inner shell 15, and a supporting outer shell 16. The heat insulation material layer 14 and the refractory material layer 13 are sequentially stacked on the inner wall of the supporting inner shell 15, and the interior of the supporting inner shell 15 forms a vertical fire channel 11. The supporting outer shell 16 and the supporting inner shell 15 are spaced apart to form a hollow sandwich layer 12.

[0105] The refractory material layer 13 is mostly made of silica bricks or clay bricks, but other refractory materials may also be used. The insulation material layer 14 is made of perlite bricks or other insulation materials. The inner metal support shell 15 is made of high-temperature resistant stainless steel, which supports and seals the inner refractory material layer 13 and the insulation material layer 14. The outer metal support shell 16 is made of stainless steel or carbon steel, etc.

[0106] The refractory material layer 13 provides a combustion space for the fire channel 11, providing a combustion site for the mixing of coal gas and combustion-supporting gas.

[0107] The inner supporting shell 15 and the outer supporting shell 16 are connected by angle steel or shaped steel, etc. The outer supporting shell 16 applies support force to the inner supporting shell 15, the refractory material layer 13, and the heat insulation material layer 14 through the angle steel or shaped steel structure.

[0108] The metal support shell 16 can be wrapped or insulated according to the heat dissipation test results.

[0109] The aforementioned oxygen-enriched combustion coupled flue gas resource utilization test system further includes: an operating device 110, which includes: an operating platform 111, a support leg 112, and a ladder 113. The operating platform 111 surrounds the support shell 16, the support leg 112 supports the operating platform 111 on the ground, one end of the ladder 113 is connected to the operating platform 111, and the other end of the ladder 113 is connected to the ground.

[0110] The operating platform 111 provides operating space for test personnel, facilitating the operation and maintenance of the oxygen-enriched combustion coupled flue gas resource utilization test system. The ladder 113 facilitates the access of test personnel to and from the operating platform 111, ensuring both operational convenience and safety. The support legs 112 support the steel structure of the combustion device 1, the operating platform 111, and other components, ensuring the spatial stability of each part of the device.

[0111] Specifically, the flue 31 has a lateral support structure (such as a reinforcing rib). The lateral support structure provides lateral support to the flue 31, preventing the flue 31 from shifting or being damaged under conditions such as flue gas flow, and ensuring the stable operation of the flue 31 system.

[0112] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. An oxygen-enriched combustion coupled flue gas resource utilization test system, characterized in that, include: Combustion device (1), including vertical fire channel (11); Gas pipeline (2), whose gas outlet is connected to the vertical fire channel (11); The flue device (3) includes a flue (31) and a flue gas pipe (32). The two ends of the flue (31) are respectively connected to the vertical fire channel (11) and the flue gas pipe (32). A flue gas resource utilization reaction space (311) is provided in the flue (31). A carbon-containing material inlet hole (312) is provided in the flue (31). The carbon-containing material inlet hole (312) and the flue gas resource utilization reaction space (311) are connected. The combustion-supporting gas conveying device (4) includes a combustion-supporting gas main pipe (41), a first combustion-supporting gas branch (42), and a second combustion-supporting gas branch (43). The combustion-supporting gas main pipe (41) is connected to the inlet of the first combustion-supporting gas branch (42), and the outlet of the first combustion-supporting gas branch (42) can be connected to the vertical flue (11). The combustion-supporting gas main pipe (41) is connected to the inlet of the second combustion-supporting gas branch (43), and the outlet of the second combustion-supporting gas branch (43) can be connected to the flue gas resource utilization reaction space (311). A carbon-containing material supply device (5) has a carbon-containing material outlet that is connected to the carbon-containing material inlet hole (312); The measuring device (6) includes a temperature measuring device, a flow measuring device, a pressure measuring device, an oxygen concentration measuring device, and a flue gas composition measuring device. The temperature measuring device is installed in at least one of the vertical flue (11), the gas pipeline (2), the combustion-supporting gas main pipe (41), the first combustion-supporting gas branch (42), the flue gas resource utilization reaction space (311), and the flue gas pipeline (32). The flow measuring device is installed in at least one of the gas pipeline (2), the combustion-supporting gas main pipe (41), and the first combustion-supporting gas branch (42). The pressure measuring device is installed in at least one of the gas pipeline (2), the combustion-supporting gas main pipe (41), the first combustion-supporting gas branch (42), and the flue gas resource utilization reaction space (311). The oxygen concentration measuring device is installed in at least one of the combustion-supporting gas main pipe (41) and the first combustion-supporting gas branch (42). The flue gas composition measuring device is used to measure the composition of the flue gas before and after the reaction in the flue gas resource utilization reaction space (311). Recording device (7) is used to record data measured by the temperature measuring device, the flow measuring device, the pressure measuring device, the oxygen concentration measuring device and the flue gas composition measuring device.

2. The oxygen-enriched combustion coupled flue gas resource utilization test system according to claim 1, characterized in that, Also includes: The control device includes a pressure regulator and a flow regulator. The pressure regulator is installed in at least one of the gas pipeline (2), the main combustion gas pipe (41), the first combustion gas branch (42), and the second combustion gas branch (43). The flow regulator is installed in at least one of the gas pipeline (2), the main combustion gas pipe (41), the first combustion gas branch (42), the second combustion gas branch (43), and the carbon-containing material supply device (5).

3. The oxygen-enriched combustion coupled flue gas resource utilization test system according to claim 2, characterized in that, Also includes: The central control device adjusts the pressure regulator according to preset or user-input instructions to adjust the pressure parameters of at least one of the gas pipeline (2), the main combustion gas pipe (41), the first combustion gas branch (42), and the second combustion gas branch (43); and / or adjusts the flow regulator to adjust the flow parameters of at least one of the gas pipeline (2), the main combustion gas pipe (41), the first combustion gas branch (42), the second combustion gas branch (43), and the carbon-containing material supply device (5).

4. The oxygen-enriched combustion coupled flue gas resource utilization test system according to claim 3, characterized in that, Also includes: The oxygen generating device (8) includes an oxygen generator and an oxygen concentration regulator. The outlet of the oxygen generator is connected to the combustion-supporting gas main pipe (41). The central control device adjusts the oxygen concentration regulator according to preset or user-input instructions to adjust the oxygen concentration of the combustion-supporting gas output by the oxygen generator.

5. The oxygen-enriched combustion coupled flue gas resource utilization test system according to claim 4, characterized in that, The instruction information includes the pressure parameters of at least one of the gas pipeline (2), the main combustion gas pipe (41), the first combustion gas branch (42), and the second combustion gas branch (43), the flow parameters of at least one of the gas pipeline (2), the main combustion gas pipe (41), the first combustion gas branch (42), the second combustion gas branch (43), and the carbon-containing material supply device (5), and the oxygen concentration of the combustion gas output by the oxygen generator.

6. The oxygen-enriched combustion coupled flue gas resource utilization test system according to claim 1, characterized in that, Also includes: Gas collection device (91); Desulfurization and denitrification unit (92); The reaction gas heat recovery and separation device (93) is connected to the flue gas pipeline (32), the gas collection device (91) and the desulfurization and denitrification device (92) respectively. It is used to exchange the high-temperature mixed flue gas discharged from the flue gas pipeline (32) into low-temperature flue gas, and then separate CO and H2 in it and send it to the gas collection device (91). The separated waste gas is sent to the desulfurization and denitrification device (92).

7. The oxygen-enriched combustion coupled flue gas resource utilization test system according to claim 1, characterized in that, The gas pipeline (2) includes a main gas pipe and multiple gas branches. The inlets of the main gas pipe and the multiple gas branches are connected, and the outlets of the multiple gas branches can be connected to different height positions of the vertical fire channel (11); or, The gas pipeline (2) is connected to the top of the fire channel (11).

8. The oxygen-enriched combustion coupled flue gas resource utilization test system according to claim 3, characterized in that, The carbon-containing material supply device (5) includes: a material processor (51), a material controller (52), and a material feeder (53) connected in sequence; The material processor (51) is used to crush, screen, and dry the input carbon-containing material and then send it to the material controller (52). The material controller (52) is used to receive the carbon-containing material after it has been processed by the material processor (51). The central control device controls the material controller (52) to adjust at least one parameter of the flow rate and temperature of the processed carbon-containing material according to preset or user-input instructions. The material feeder (53) is used to transport the carbon-containing material regulated by the material controller (52) to the flue gas resource utilization reaction space (311).

9. The oxygen-enriched combustion coupled flue gas resource utilization test system according to claim 1, characterized in that, Also includes: A gas pretreatment device (21) whose outlet is connected to the gas inlet of the gas pipeline (2) is used to pretreat the input gas, remove at least one of dust, tar, and water vapor from the gas, and / or heat the gas, and / or blend the gas with other substances.

10. The oxygen-enriched combustion coupled flue gas resource utilization test system according to claim 1, characterized in that, The combustion device (1) further includes: a cooling fan, an air volume controller, and a hollow interlayer (12), the hollow interlayer (12) being disposed on the outer periphery of the vertical fire channel (11); the hollow interlayer (12) being provided with a first ventilation opening and a second ventilation opening communicating with the outside, the cooling fan being disposed at the first ventilation opening; The air volume controller is used to adjust the air volume of the cooling fan to change with the stage of simulated coal coking.

Images