Method and system for controlling garbage carbonization hydrogen production process

Abstract

The invention relates to the field of solid waste treatment, in particular to a garbage carbonization hydrogen production process control method and system.The conveying state of pyrolysis oil gas to a gas furnace is adjusted based on the pyrolysis oil gas generation characteristics of an anaerobic pyrolysis procedure of dry garbage; based on the high-temperature flue gas output data of the gas furnace, the combustion state characteristics of the pyrolysis oil gas in the gas furnace are estimated, and combustion auxiliary operation of the pyrolysis oil gas in the gas furnace is adjusted; on the basis of medium-temperature flue gas output data from the anaerobic pyrolysis process to the drying process, the drying environment characteristics of the drying process are determined, the drying state information of the in-furnace garbage in the drying process is predicted, and the conveying state of the medium-temperature flue gas to the drying process is adjusted; based on the screening state data of the biological carbon powder generated in the anaerobic pyrolysis process in the thermal sorting process, the carbon powder screening characteristics of the thermal sorting process are determined, and the screening operation state and the discharging operation state of the biological carbon powder are adjusted. According to the invention, low-energy-consumption and low-carbon-emission harmless green treatment of the household garbage can be realized.

Description

Technical Field

[0001] The present invention relates to the field of solid waste treatment, and in particular to a garbage carbonization hydrogen production process control method and system. Background Art

[0002] Domestic waste has become the main source of solid waste. With the continuous improvement of residents' living standards, the output of domestic waste has also shown an increasing trend year by year. The existing methods of domestic waste treatment mainly include landfill and incineration; among them, domestic waste landfill not only occupies a large amount of land resources, but also pollutes the soil and groundwater, causing land resource security issues; although domestic waste incineration can be used for power generation, the toxic gases such as dioxins produced during the incineration process will pollute the atmospheric environment. It can be seen that landfilling or incinerating domestic waste will cause pollution to the natural environment, and harmless and green treatment of domestic waste, as well as the conversion of domestic waste into renewable energy in a low-pollution manner are important development directions for the future treatment of domestic waste and solid waste.

[0003] At present, there are technologies for producing hydrogen by carbonization and gasification of domestic waste. For example, the authorized patent ZL202310529013.7 (Announcement No. CN116554931B) uses the process of maturation and dehydration of domestic waste, drying, anaerobic pyrolysis, thermal sorting, carbon powder gasification and purification to synthesize and extract high-purity hydrogen, realize the harmless and green treatment of domestic waste, and convert it to obtain renewable energy such as hydrogen, improve the recycling efficiency of domestic waste, and avoid environmental pollution caused by the above-mentioned conventional methods of treating domestic waste. Among them, the process flow of the above-mentioned authorized patent is as follows Figure 1 The above patented drying, anaerobic pyrolysis, thermal sorting and other process steps have a crucial impact on the efficiency of hydrogen production. How to further optimize and improve the drying, anaerobic pyrolysis, thermal sorting and other process steps is of great significance for reducing the energy consumption and carbon emissions of the hydrogen production process and improving the efficiency of hydrogen production. Summary of the invention

[0004] In order to optimize and improve the implementation of drying, anaerobic pyrolysis, thermal sorting and other process steps in the process of carbonization and gasification of domestic waste to produce hydrogen, to achieve efficient heat recycling between different process steps and efficient drying, dehydration and carbonization conversion of domestic waste and its treatment products, and to achieve low-energy consumption, low-carbon emission and harmless green treatment of domestic waste, the present invention provides a waste carbonization hydrogen production process control method, the method comprising the following steps: Based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage, the delivery state of the pyrolysis oil and gas to the gas furnace is adjusted; based on the high-temperature flue gas output data of the gas furnace, the combustion state characteristics of the pyrolysis oil and gas in the gas furnace are estimated, thereby adjusting the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace; Based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process, the drying environment characteristics of the drying process are determined; based on the drying environment characteristics, the drying state information of the garbage entering the furnace in the drying process is predicted, so as to adjust the conveying state of the medium-temperature flue gas to the drying process; Based on the screening status data of the biochar generated by the anaerobic pyrolysis process in the thermal sorting process, the carbon powder screening characteristics of the thermal sorting process are determined; based on the carbon powder screening characteristics, the screening operation state and the discharging operation state of the biochar in the thermal sorting process are adjusted.

[0005] Preferably, the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage are used to adjust the delivery state of the pyrolysis oil and gas to the gas furnace, specifically: The internal environment of the anaerobic pyrolysis process of dry garbage is detected to obtain the pyrolysis oil and gas proportion change data and the pyrolysis oil and gas temperature change data of the internal environment; the pyrolysis oil and gas proportion change data and the pyrolysis oil and gas temperature change data are analyzed to obtain the pyrolysis oil and gas pressure change characteristics generated by the anaerobic pyrolysis process; based on the pyrolysis oil and gas pressure change characteristics, the delivery and release pressure state of the pyrolysis oil and gas to the gas furnace is adjusted.

[0006] Preferably, the combustion state characteristics of the pyrolysis oil and gas in the gas furnace are estimated based on the high-temperature flue gas output data of the gas furnace, so as to adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace, specifically: The high-temperature flue gas output after the gas furnace burns the pyrolysis oil and gas is detected to obtain temperature change data and smoke particle concentration change data of the high-temperature flue gas; the temperature change data and the smoke particle concentration change data are analyzed to estimate the combustion degree state characteristics of the pyrolysis oil and gas in the gas furnace; wherein the combustion degree state characteristics refer to the proportion of the fully burned portion of the pyrolysis oil and gas in the gas furnace; based on the combustion degree state characteristics, the atomization operation of the pyrolysis oil and gas in the gas furnace and / or the oxygen supply operation to the gas furnace are adjusted.

[0007] Preferably, the drying environment characteristics of the drying process are determined based on the medium-temperature flue gas output data from the anaerobic pyrolysis process to the drying process; based on the drying environment characteristics, the drying state information of the garbage entering the furnace in the drying process is predicted, so as to adjust the conveying state of the medium-temperature flue gas to the drying process, specifically: The medium-temperature flue gas output from the anaerobic pyrolysis process to the internal space of the drying process is detected to obtain medium-temperature flue gas temperature data and medium-temperature flue gas pressure data; the medium-temperature flue gas temperature data and the medium-temperature flue gas pressure data are analyzed to determine the heat flow motion state characteristics of the medium-temperature flue gas in the internal space, and use them as the drying environment characteristics; wherein the heat flow motion state characteristics include the heat flow motion speed and motion direction of the heat flow in the internal space; Based on the movement state characteristics of the heat flow and the movement state characteristics of the garbage entering the furnace in the internal space, the moisture evaporation rate information of the garbage entering the furnace under the action of the heat flow is predicted, and this is used as the drying state information of the garbage entering the furnace in the drying process; based on the moisture evaporation rate information, the delivery flow rate and / or delivery pressure of the medium-temperature flue gas to the internal space is adjusted.

[0008] Preferably, the screening state data of the biochar generated in the anaerobic pyrolysis process in the thermal sorting process is used to determine the carbon powder screening characteristics of the thermal sorting process; based on the carbon powder screening characteristics, the screening operation state and discharge state of the biochar in the thermal sorting process are adjusted, specifically: Visually identify the screening process of the biochar powder generated in the anaerobic pyrolysis process in the thermal sorting process to obtain the screening amount change data of the metal impurities and non-metal impurities in the biochar powder; analyze the screening amount change data to estimate the residual distribution characteristics of the metal impurities and non-metal impurities in the biochar powder, and use this as the carbon powder screening characteristics; Based on the residual distribution characteristics of metal impurities and non-metallic impurities in the bio-carbon powder, the operating states of the eddy-electric screening and color sorting of the bio-carbon powder in the hot sorting process are adjusted, and the discharging states of the eddy-electric screening and the color sorting are adjusted; wherein the discharging states include the discharging rates of the eddy-electric screening and the color sorting.

[0009] On the other hand, the present invention provides a garbage carbonization hydrogen production process control system, the system comprising the following modules: The pyrolysis oil and gas transmission adjustment module is used to adjust the transmission state of the pyrolysis oil and gas to the gas furnace based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage; An oil and gas combustion auxiliary operation adjustment module, used to estimate the combustion state characteristics of the pyrolysis oil and gas in the gas furnace based on the high-temperature flue gas output data of the gas furnace, so as to adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace; A drying environment identification module, for determining the drying environment characteristics of the drying process based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process; A flue gas delivery adjustment module, used to predict the drying state information of the garbage entering the furnace in the drying process based on the drying environment characteristics, so as to adjust the delivery state of the medium-temperature flue gas to the drying process; A carbon powder screening identification module, for determining the carbon powder screening characteristics of the thermal sorting process based on the screening state data of the biocarbon powder generated by the anaerobic pyrolysis process in the thermal sorting process; The screening operation and discharging adjustment module is used to adjust the screening operation state and the discharging operation state of the bio-carbon powder in the thermal sorting process based on the screening characteristics of the carbon powder.

[0010] Preferably, the pyrolysis oil and gas delivery adjustment module is used to adjust the delivery state of the pyrolysis oil and gas to the gas furnace based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage, specifically: The internal environment of the anaerobic pyrolysis process of dry garbage is detected to obtain the pyrolysis oil and gas proportion change data and the pyrolysis oil and gas temperature change data of the internal environment; the pyrolysis oil and gas proportion change data and the pyrolysis oil and gas temperature change data are analyzed to obtain the pyrolysis oil and gas pressure change characteristics generated by the anaerobic pyrolysis process; based on the pyrolysis oil and gas pressure change characteristics, the delivery and release pressure state of the pyrolysis oil and gas to the gas furnace is adjusted.

[0011] Preferably, the oil and gas combustion auxiliary operation adjustment module is used to estimate the combustion state characteristics of the pyrolysis oil and gas in the gas furnace based on the high-temperature flue gas output data of the gas furnace, so as to adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace, specifically: The high-temperature flue gas output after the gas furnace burns the pyrolysis oil and gas is detected to obtain temperature change data and smoke particle concentration change data of the high-temperature flue gas; the temperature change data and the smoke particle concentration change data are analyzed to estimate the combustion degree state characteristics of the pyrolysis oil and gas in the gas furnace; wherein the combustion degree state characteristics refer to the proportion of the fully burned portion of the pyrolysis oil and gas in the gas furnace; based on the combustion degree state characteristics, the atomization operation of the pyrolysis oil and gas in the gas furnace and / or the oxygen supply operation to the gas furnace are adjusted.

[0012] Preferably, the drying environment identification module is used to determine the drying environment characteristics of the drying process based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process, specifically: The medium-temperature flue gas output from the anaerobic pyrolysis process to the internal space of the drying process is detected to obtain medium-temperature flue gas temperature data and medium-temperature flue gas pressure data; the medium-temperature flue gas temperature data and the medium-temperature flue gas pressure data are analyzed to determine the heat flow motion state characteristics of the medium-temperature flue gas in the internal space, and use them as the drying environment characteristics; wherein the heat flow motion state characteristics include the heat flow motion speed and motion direction of the heat flow in the internal space; The flue gas delivery adjustment module is used to predict the drying state information of the garbage entering the furnace in the drying process based on the drying environment characteristics, so as to adjust the delivery state of the medium-temperature flue gas to the drying process, specifically: Based on the movement state characteristics of the heat flow and the movement state characteristics of the garbage entering the furnace in the internal space, the moisture evaporation rate information of the garbage entering the furnace under the action of the heat flow is predicted, and this is used as the drying state information of the garbage entering the furnace in the drying process; based on the moisture evaporation rate information, the delivery flow rate and / or delivery pressure of the medium-temperature flue gas to the internal space is adjusted.

[0013] Preferably, the carbon powder screening identification module is used to determine the carbon powder screening characteristics of the thermal sorting process based on the screening state data of the biocarbon powder generated by the anaerobic pyrolysis process in the thermal sorting process, specifically: Visually identify the screening process of the biochar powder generated in the anaerobic pyrolysis process in the thermal sorting process to obtain the screening amount change data of the metal impurities and non-metal impurities in the biochar powder; analyze the screening amount change data to estimate the residual distribution characteristics of the metal impurities and non-metal impurities in the biochar powder, and use this as the carbon powder screening characteristics; The screening operation and discharging adjustment module is used to adjust the screening operation state and discharging operation state of the bio-carbon powder in the thermal sorting process based on the carbon powder screening characteristics, specifically: Based on the residual distribution characteristics of metal impurities and non-metallic impurities in the bio-carbon powder, the operating states of the eddy-electric screening and color sorting of the bio-carbon powder in the hot sorting process are adjusted, and the discharging states of the eddy-electric screening and the color sorting are adjusted; wherein the discharging states include the discharging rates of the eddy-electric screening and the color sorting.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Based on the characteristics of pyrolysis oil and gas generation in the anaerobic pyrolysis process of dry garbage, the delivery state of pyrolysis oil and gas to the gas furnace is adjusted; based on the high-temperature flue gas output data of the gas furnace, the combustion state characteristics of pyrolysis oil and gas in the gas furnace are estimated to adjust the combustion auxiliary operation of pyrolysis oil and gas in the gas furnace. The anaerobic pyrolysis process is a key process for realizing the carbonization of domestic garbage. When dry garbage enters the anaerobic pyrolysis process, the dry garbage will undergo a carbonization reaction and be decomposed into biochar and pyrolysis oil fume; pyrolysis oil fume has a high combustion calorific value, and the anaerobic pyrolysis process needs to maintain the carbonization reaction in a high temperature environment. In order to achieve the effective recycling of the heat of the anaerobic pyrolysis process, the pyrolysis oil and gas can be transported to the gas furnace for combustion, and the high-temperature flue gas generated by the combustion of the pyrolysis oil and gas can continuously supply heat to the anaerobic pyrolysis process, realizing the self-heating of the anaerobic pyrolysis process and reducing the anaerobic pyrolysis process's dependence on external heat. The degree of complete combustion of pyrolysis oil and gas in the gas furnace directly affects the calorific value of high-temperature flue gas. When the pyrolysis oil and gas burn more completely, the temperature of the generated high-temperature flue gas is higher and the concentration of smoke particles therein is lower, which can provide a hot air flow with less impurity content and high calorific value for the anaerobic pyrolysis process; when the pyrolysis oil and gas burn less completely, the temperature of the generated high-temperature flue gas is lower and the concentration of smoke particles therein is higher, which cannot provide a hot air flow with less impurity content and high calorific value for the anaerobic pyrolysis process. Whether the pyrolysis oil and gas burn fully in the gas furnace depends on the ratio of the pyrolysis oil and gas and oxygen transported to the gas furnace and the adequacy of the contact between the two. In order to ensure that the pyrolysis oil and gas transported to the gas furnace during the implementation of the anaerobic pyrolysis process can be fully and efficiently burned, the transport state of the pyrolysis oil and gas to the gas furnace can be adjusted according to the pressure of the pyrolysis oil and gas generated by the anaerobic pyrolysis process, to ensure that the gas furnace can continuously receive a stable pressure supply of pyrolysis oil and gas, and to avoid excessive fluctuations in the supply of pyrolysis oil and gas in the gas furnace, which cannot maintain the stable combustion reaction in the furnace. In addition, the volume ratio between the pyrolysis oil and gas and the oxygen in the gas furnace and the degree of contact between the two directly determine the completeness of the combustion reaction of the pyrolysis oil and gas. By adjusting the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace, the pyrolysis oil and gas can be fully contacted and reacted with oxygen, avoiding the pyrolysis oil and gas being discharged with the high-temperature flue gas without being burned, thereby affecting the heat circulation efficiency between the anaerobic pyrolysis process and the gas furnace.

[0015] Based on the output data of medium-temperature flue gas from the anaerobic pyrolysis process to the drying process, the drying environment characteristics of the drying process are determined; based on the drying environment characteristics, the drying state information of the garbage entering the furnace in the drying process is predicted, so as to adjust the conveying state of the medium-temperature flue gas to the drying process. The high-temperature flue gas is used to provide heat for the anaerobic pyrolysis process and maintain the high-temperature environment required for the implementation of the anaerobic pyrolysis process. After the high-temperature flue gas passes through the anaerobic pyrolysis process, heat loss will occur, which will reduce its own temperature and be discharged as medium-temperature flue gas. The medium-temperature flue gas still has a high heat content, and it will not be able to maximize the use of the heat of the flue gas if it is directly discharged to the external environment. In view of the fact that domestic garbage needs to be fully dried and dehydrated before the anaerobic pyrolysis process to improve the efficiency of the anaerobic pyrolysis reaction, the medium-temperature flue gas can be used as a heat source for drying and dehydrating domestic garbage. Generally speaking, the drying process of domestic garbage is implemented in a relatively closed internal space. The higher the temperature of the internal space and the more uniform the temperature distribution, the more fully and evenly the domestic garbage can be dried. In order to form an efficient high-temperature drying environment in the internal space, it is necessary to ensure that the medium-temperature flue gas flows evenly and fully in the internal space corresponding to the drying process after being input into it, so that the medium-temperature flue gas is fully in contact with the domestic waste, and the heat exchange efficiency between the medium-temperature flue gas and the domestic waste is improved, and the moisture inside the domestic waste is ensured to evaporate quickly and fully under the action of the heat carried by the medium-temperature flue gas, and the dehydration and drying of the domestic waste is completed in a relatively short time to avoid moisture remaining in the domestic waste. According to the temperature data and pressure data after the medium-temperature flue gas is input into the internal space, the heat flow movement transmission state of the medium-temperature flue gas in the internal space is determined, and the evaporation of the domestic waste water caused by the contact between the medium-temperature flue gas and the domestic waste is predicted, so as to adaptively adjust the medium-temperature flue gas's transportation state to the internal space in the drying process, ensure that the medium-temperature flue gas forms effective heat convection in the internal space, and improve the adequacy of the contact between the medium-temperature flue gas and the domestic waste.

[0016] Based on the screening status data of the biochar generated by the anaerobic pyrolysis process in the hot sorting process, the carbon powder screening characteristics of the hot sorting process are determined; based on the carbon powder screening characteristics, the screening operation state and discharge operation state of the hot sorting process for the biochar are adjusted. Carbonization of domestic waste to produce hydrogen is achieved by utilizing organic components such as kitchen waste in domestic waste. However, in addition to kitchen waste, domestic waste also includes material components such as metals and glass that cannot be used for hydrogen production. These material components will affect the gasification hydrogen production efficiency of biochar. In order to improve the reaction efficiency of gasification hydrogen production and the hydrogen output and purity, it is necessary to perform a hot sorting process on the biochar to screen out the material components that affect the gasification hydrogen production efficiency. In order to achieve refined material sorting of bio-carbon powder, it is necessary to obtain real-time data on the changes in the screening amount of metal impurities and non-metallic impurities in the bio-carbon powder during the implementation of the hot sorting process, so as to estimate the residual amount of metal impurities and non-metallic impurities in the bio-carbon powder, provide a reliable basis for the subsequent adjustment of the screening operation status and discharging status of the bio-carbon powder, and improve the accuracy of screening and removal of metal impurities and non-metallic impurities in the bio-carbon powder and the purity of the bio-carbon powder screening discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 The present invention is a flowchart of a process for producing hydrogen by carbonization and gasification of domestic waste in the prior art.

[0018] Figure 2 The present invention provides a flowchart of a garbage carbonization hydrogen production process control method.

[0019] Figure 3 It is a structural diagram of a garbage carbonization hydrogen production process control system provided by the present invention. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention rather than all structures are shown in the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] The terms "including" and "having" and any variations thereof in the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] See also Figure 2 As shown, the present invention provides a garbage carbonization hydrogen production process control method, the method comprising the following steps: S100, based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage, adjust the delivery status of the pyrolysis oil and gas to the gas furnace; based on the high-temperature flue gas output data of the gas furnace, estimate the combustion state characteristics of the pyrolysis oil and gas in the gas furnace, and adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace.

[0024] Furthermore, based on the characteristics of pyrolysis oil and gas generation in the anaerobic pyrolysis process of dry garbage, the delivery state of pyrolysis oil and gas to the gas furnace is adjusted, specifically: The internal environment of the anaerobic pyrolysis process of dry garbage is tested to obtain the pyrolysis oil and gas proportion change data and the pyrolysis oil and gas temperature change data of the internal environment; the pyrolysis oil and gas proportion change data and the pyrolysis oil and gas temperature change data are analyzed to obtain the pressure change characteristics of the pyrolysis oil and gas generated by the anaerobic pyrolysis process; based on the pyrolysis oil and gas pressure change characteristics, the delivery and release pressure state of the pyrolysis oil and gas to the gas furnace is adjusted.

[0025] The garbage carbonization and hydrogen production control method of the present invention mainly optimizes and improves the anaerobic pyrolysis process, the drying process, and the thermal sorting process of the garbage carbonization and gasification hydrogen production process. The other processes of the garbage carbonization and gasification hydrogen production process can refer to the authorized patents mentioned in the background technology and will not be introduced in detail here.

[0026] Domestic waste (garbage entering the furnace) can only be put into the anaerobic pyrolysis process for pyrolysis and carbonization treatment after it has been dehydrated and dried in the drying process to form dry waste. The anaerobic pyrolysis process is implemented through an anaerobic pyrolysis system, which is a key process for achieving carbonization of domestic waste. The anaerobic pyrolysis process needs to be implemented in a high-temperature closed environment isolated from oxygen. Only when the closed environment where the anaerobic pyrolysis process is located is kept within the preset high-temperature temperature range can the effective and thorough carbonization reaction of domestic waste be guaranteed. Otherwise, the organic components in the domestic waste cannot be completely carbonized and cannot be completely converted into biochar powder that can be used for gasification and hydrogen production. In order to maintain the high-temperature carbonization reaction environment required for the anaerobic pyrolysis process, a heating source needs to be provided for the anaerobic pyrolysis process. Taking into account that when the anaerobic pyrolysis process is carried out on dry garbage, the dry garbage will undergo a carbonization reaction and be decomposed into biochar powder and pyrolysis oil fume, among which the pyrolysis oil fume has a higher combustion calorific value. In order to achieve effective recycling of heat in the anaerobic pyrolysis process, the pyrolysis oil and gas can be transported to a gas furnace for combustion. The high-temperature flue gas generated by the combustion of the pyrolysis oil and gas can continuously supply heat to the anaerobic pyrolysis process, thereby achieving self-heating of the anaerobic pyrolysis process and reducing the degree of dependence of the anaerobic pyrolysis process on external heating sources.

[0027] The degree of complete combustion of pyrolysis oil and gas in the gas furnace directly affects the calorific value of high-temperature flue gas. When the pyrolysis oil and gas burn more completely, the temperature of the generated high-temperature flue gas is higher and the concentration of smoke particles in the high-temperature flue gas is lower, which can provide a hot air flow with less impurities and high calorific value for the anaerobic pyrolysis process; when the pyrolysis oil and gas burn less completely, the temperature of the generated high-temperature flue gas is lower and the concentration of smoke particles in the high-temperature flue gas is higher, which cannot provide a hot air flow with less impurities and high calorific value for the anaerobic pyrolysis process. Whether the pyrolysis oil and gas burn fully in the gas furnace depends on the volume ratio of the pyrolysis oil and gas to oxygen transported into the gas furnace and the adequacy of the contact between the pyrolysis oil and gas and oxygen. In addition, the flow rate of pyrolysis oil and gas delivered to the gas furnace depends on the carbonization reaction rate of the anaerobic pyrolysis process. The greater the carbonization reaction rate, the greater the volume of pyrolysis oil and gas generated per unit time. It can be seen that the carbonization reaction efficiency of the anaerobic pyrolysis process is related to the supply of high-temperature flue gas, and the supply of high-temperature flue gas is related to the degree of complete combustion of pyrolysis oil and gas in the gas furnace, that is, the operation of the anaerobic pyrolysis process and the gas furnace influence each other. In order to ensure that the pyrolysis oil and gas delivered to the gas furnace during the implementation of the anaerobic pyrolysis process can be fully and efficiently burned, the delivery status of the pyrolysis oil and gas to the gas furnace can be adjusted according to the generation of pyrolysis oil and gas in the anaerobic pyrolysis process to ensure that the gas furnace can continuously receive a stable supply of pyrolysis oil and gas, and avoid the gas furnace being unable to maintain a stable combustion reaction due to excessive fluctuations in the supply of pyrolysis oil and gas, thereby affecting the stability and continuity of the supply of high-temperature flue gas to the anaerobic pyrolysis process.

[0028] Specifically, in order to ensure that the pyrolysis oil and gas transported to the gas furnace can be fully burned to generate high-temperature flue gas, it is necessary to first determine the generation of pyrolysis oil and gas during the carbonization reaction of dry garbage in the anaerobic pyrolysis process. In addition, the degree of combustion of the pyrolysis oil and gas in the gas furnace is related to the pressure of the pyrolysis oil and gas transported to the gas furnace. The greater the pyrolysis oil and gas pressure, the more sufficient the contact between the pyrolysis oil and gas and oxygen in the gas furnace, and the more sufficient the combustion of the pyrolysis oil and gas in the gas furnace. However, the pressure of the pyrolysis oil and gas originally generated in the anaerobic pyrolysis process is not fixed, nor is it always maintained at a pressure state that can ensure full combustion in the gas furnace. In order to ensure the full combustion of the pyrolysis oil and gas in the gas furnace, it is necessary to first determine the pressure of the pyrolysis oil and gas originally generated in the anaerobic pyrolysis process. Generally speaking, the greater the proportion of pyrolysis oil and gas generated in the internal environment of the anaerobic pyrolysis process and / or the higher the temperature of the pyrolysis oil and gas, the greater the pressure of the pyrolysis oil and gas originally generated in the anaerobic pyrolysis process. To this end, the internal environment of the anaerobic pyrolysis process of dry garbage is detected to obtain the pyrolysis oil and gas ratio change data and pyrolysis oil and gas temperature change data of the internal environment, and the pyrolysis oil and gas ratio change data and pyrolysis oil and gas temperature change data are analyzed to obtain the pressure change characteristics of the pyrolysis oil and gas originally generated in the anaerobic pyrolysis process, that is, the pressure change characteristics of the pyrolysis oil and gas originally generated in the anaerobic pyrolysis process at different time points. Based on the pyrolysis oil and gas pressure change characteristics, it is judged whether the pyrolysis oil and gas pressure originally generated in the anaerobic pyrolysis process at the current time point exceeds the preset pressure threshold. If so, the pyrolysis oil and gas currently originally generated in the anaerobic pyrolysis process is directly transported to the gas furnace; if not, the pyrolysis oil and gas currently originally generated in the anaerobic pyrolysis process is pressurized and then transported to the gas furnace, thereby increasing the delivery release pressure value of the pyrolysis oil and gas to the gas furnace, ensuring that the pyrolysis oil and gas are transported to the gas furnace and quickly diffused to fill the global space in the furnace, thereby improving the combustion efficiency of the pyrolysis oil and gas in the gas furnace.

[0029] Furthermore, based on the high-temperature flue gas output data of the gas furnace, the combustion state characteristics of the pyrolysis oil and gas in the gas furnace are estimated, so as to adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace, specifically: The high-temperature flue gas output after the gas furnace burns pyrolysis oil and gas is detected to obtain temperature change data and smoke particle concentration change data of the high-temperature flue gas; the temperature change data and smoke particle concentration change data are analyzed to estimate the combustion degree state characteristics of the pyrolysis oil and gas in the gas furnace; wherein the combustion degree state characteristics refer to the proportion of the fully burned portion of the pyrolysis oil and gas in the gas furnace; based on the combustion degree state characteristics, the atomization operation of the pyrolysis oil and gas in the gas furnace and / or the oxygen supply operation to the gas furnace are adjusted.

[0030] Through the above analysis, it can be known that the temperature and smoke particle concentration of the high-temperature flue gas output by the gas furnace depend on the degree of combustion of the pyrolysis oil and gas in the gas furnace. When the pyrolysis oil and gas are burned more completely, the temperature of the generated high-temperature flue gas is higher and the smoke particle concentration of the high-temperature flue gas is lower, which can provide a hot air flow with less impurities and high calorific value for the anaerobic pyrolysis process; when the pyrolysis oil and gas are burned less completely, the temperature of the generated high-temperature flue gas is lower and the smoke particle concentration of the high-temperature flue gas is higher, which cannot provide a hot air flow with less impurities and high calorific value for the anaerobic pyrolysis process. For this reason, by detecting and analyzing the temperature change data and smoke particle concentration change data of the high-temperature flue gas output after the gas furnace burns the pyrolysis oil and gas, the degree of combustion of the pyrolysis oil and gas in the gas furnace can be estimated. Specifically, a temperature sensor and a smoke concentration sensor can be set at the smoke output end of the gas furnace to detect the temperature change data and smoke particle concentration change data of the high-temperature smoke output by the gas furnace in the corresponding time period, and then combined with the combustion reaction process of the pyrolysis oil and gas in the gas furnace, the proportion of the pyrolysis oil and gas fully burned in the gas furnace is estimated, which refers to the ratio between the volume of the pyrolysis oil and gas fully burned in the gas furnace per unit time and the total volume of all the pyrolysis oil and gas delivered to the gas furnace. Then the proportion is compared with the preset proportion threshold. If the proportion exceeds the preset proportion threshold, the combustion reaction parameters of the pyrolysis oil and gas in the gas furnace are kept unchanged; if the proportion does not exceed the preset proportion threshold, the atomization operation of the pyrolysis oil and gas in the gas furnace and / or the oxygen supply operation to the gas furnace are enhanced; wherein, the enhancement of the atomization operation of the pyrolysis oil and gas in the gas furnace may include but is not limited to reducing the liquid particle size of the pyrolysis oil and gas after atomization in the gas furnace, and the enhancement of the oxygen supply operation to the gas furnace may include but is not limited to increasing the flow rate of oxygen delivered to the gas furnace.

[0031] S200, based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process, determine the drying environment characteristics of the drying process; based on the drying environment characteristics, predict the drying state information of the garbage entering the furnace in the drying process, so as to adjust the conveying state of the medium-temperature flue gas to the drying process.

[0032] Furthermore, based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process, the drying environment characteristics of the drying process are determined; based on the drying environment characteristics, the drying state information of the garbage entering the furnace in the drying process is predicted, so as to adjust the conveying state of the medium-temperature flue gas to the drying process, specifically: The medium-temperature flue gas output from the anaerobic pyrolysis process to the internal space of the drying process is detected to obtain medium-temperature flue gas temperature data and medium-temperature flue gas pressure data; the medium-temperature flue gas temperature data and medium-temperature flue gas pressure data are analyzed to determine the heat flow motion state characteristics of the medium-temperature flue gas in the internal space, which are used as drying environment characteristics; wherein the heat flow motion state characteristics include the heat flow motion speed and motion direction of the internal space; Based on the movement state characteristics of the heat flow and the movement state characteristics of the garbage entering the furnace in the internal space, the moisture evaporation rate information of the garbage entering the furnace under the action of the heat flow is predicted, and this is used as the drying state information of the garbage entering the furnace in the drying process; based on the moisture evaporation rate information, the delivery flow rate and / or delivery pressure of the medium-temperature flue gas to the internal space is adjusted.

[0033] The high-temperature flue gas is transmitted back to the closed environment where the anaerobic pyrolysis process is located to provide heat for the anaerobic pyrolysis process and maintain the high-temperature environment required for the implementation of the anaerobic pyrolysis process. After passing through the anaerobic pyrolysis process, the high-temperature flue gas will lose heat and its own temperature will be reduced, and it will be discharged as medium-temperature flue gas. The medium-temperature flue gas still has a relatively high heat content, and directly discharging it to the external environment will cause a large waste of heat and fail to maximize the use of the heat of the flue gas. In view of the fact that domestic waste needs to be fully dried and dehydrated before the anaerobic pyrolysis process in order to improve the efficiency of the anaerobic pyrolysis reaction, the medium-temperature flue gas can be used as a heat source for the drying and dehydration of domestic waste. Generally speaking, the drying process of domestic waste is implemented in a relatively closed internal space. The higher the temperature of the internal space and the more uniform the temperature distribution, the more fully and evenly the domestic waste can be dried. In order to form an efficient high-temperature drying environment in the internal space, it is necessary to ensure that the medium-temperature flue gas flows evenly and fully in the internal space corresponding to the drying process after being input into it, so that the medium-temperature flue gas is in full contact with the domestic waste, and the heat exchange efficiency between the medium-temperature flue gas and the domestic waste is improved, and the moisture inside the domestic waste is ensured to evaporate quickly and fully under the action of the heat carried by the medium-temperature flue gas, and the dehydration and drying of the domestic waste is completed in a relatively short time, so as to avoid moisture remaining in the domestic waste. Generally speaking, when the medium-temperature flue gas can quickly fill the entire internal space after entering the internal space corresponding to the drying process and can flow in the internal space at a high speed, the medium-temperature flue gas can be in full and uniform contact with the domestic waste in the internal space, that is, the heat flow movement caused by the medium-temperature flue gas in the internal space corresponding to the drying process directly affects the drying efficiency of the domestic waste. To this end, the medium-temperature flue gas output from the anaerobic pyrolysis process to the internal space of the drying process is detected to obtain medium-temperature flue gas temperature data and medium-temperature flue gas pressure data. The medium-temperature flue gas movement modeling of the internal space is carried out based on the medium-temperature flue gas temperature data and medium-temperature flue gas pressure data to obtain the movement speed and movement direction of the heat flow formed by the medium-temperature flue gas in the internal space, so as to quantify and ensure the dry environment characteristics of the internal space. Based on the movement speed and movement direction of the heat flow formed by the medium-temperature flue gas in the internal space, the evaporation of water in domestic waste caused by the contact between the medium-temperature flue gas and domestic waste is predicted to obtain the water evaporation rate information of domestic waste under the action of heat flow (that is, the amount of water evaporation per unit time of domestic waste under the action of heat flow). The water evaporation rate of domestic waste under the action of heat flow is then compared with the preset evaporation rate threshold. If the water evaporation rate is less than the preset evaporation rate threshold, the medium-temperature flue gas delivery flow rate and / or delivery pressure to the internal space is increased; if the water evaporation rate is greater than or equal to the preset evaporation rate threshold, the current delivery flow rate and delivery pressure of the medium-temperature flue gas to the internal space are kept unchanged.

[0034] S300, based on the screening status data of the bio-carbon powder generated in the anaerobic pyrolysis process in the thermal sorting process, determine the carbon powder screening characteristics of the thermal sorting process; based on the carbon powder screening characteristics, adjust the screening operation state and discharge operation state of the thermal sorting process for the bio-carbon powder.

[0035] Furthermore, based on the screening state data of the biochar generated by the anaerobic pyrolysis process in the thermal sorting process, the carbon powder screening characteristics of the thermal sorting process are determined; based on the carbon powder screening characteristics, the screening operation state and discharge state of the biochar in the thermal sorting process are adjusted, specifically: Visual identification is performed on the screening process of the biochar powder generated in the anaerobic pyrolysis process in the thermal sorting process to obtain the screening amount change data of the biochar powder in terms of metal impurities and non-metal impurities; the screening amount change data is analyzed to estimate the residual distribution characteristics of metal impurities and non-metal impurities in the biochar powder, which is used as the carbon powder screening characteristics; Based on the residual distribution characteristics of metal impurities and non-metallic impurities in the bio-carbon powder, the operating states of the eddy-electric screening and color sorting of the bio-carbon powder in the hot sorting process are adjusted, and the discharging states of the eddy-electric screening and color sorting are adjusted; wherein the discharging state includes the discharging rate of the eddy-electric screening and color sorting.

[0036] Carbonization of domestic waste to produce hydrogen is achieved by utilizing organic components such as kitchen waste in domestic waste. However, in addition to kitchen waste, domestic waste also includes metals (such as aluminum and copper) and glass, which cannot be used for hydrogen production. These components will affect the efficiency of hydrogen production from gasification of biochar powder. In order to improve the reaction efficiency, hydrogen production and purity of hydrogen production from gasification, it is necessary to perform a thermal sorting process on the biochar powder to screen out the above-mentioned components that affect the efficiency of hydrogen production from gasification. The metal components can be screened out by a turbo motor, and the glass components can be screened out by a color sorter. In view of the fact that biochar powder has a small particle size, it is easy for incomplete screening and elimination to occur during the screening and elimination of material components, and a large amount of unnecessary material components remain widely distributed in the biochar powder. In order to reduce the impurity content of biochar powder and to finely sort different types of impurities in biochar powder, the screening process of the biochar powder generated by the anaerobic pyrolysis process in the hot sorting process was visually identified to obtain the screening amount change data of metal impurities and non-metallic impurities in the biochar powder; wherein, the screening amount change data of metal impurities and non-metallic impurities refers to the respective amount of metal impurities and non-metallic impurities screened from the biochar powder per unit time. The time evolution analysis of the screening amount change data of metal impurities and non-metallic impurities is performed to obtain the change trend of the respective amount of metal impurities and non-metallic impurities screened from the bio-carbon powder per unit time in the preset time period; if the change trend of the respective amount of metal impurities and non-metallic impurities screened from the bio-carbon powder per unit time shows that the respective amount of metal impurities and non-metallic impurities screened is gradually decreasing, it indicates that the residual amount of metal impurities and non-metallic impurities in the bio-carbon powder is gradually decreasing, and then combined with the internal area of ​​the bio-carbon powder corresponding to each screening of metal impurities and non-metallic impurities, the residual amount distribution characteristics of metal impurities and non-metallic impurities in the bio-carbon powder are estimated, that is, the residual amount of metal impurities and non-metallic impurities in different areas inside the bio-carbon powder, providing a reliable basis for the subsequent adjustment of the screening operation state and the discharge state of the bio-carbon powder. In addition, based on the residual amount distribution characteristics of metal impurities and non-metallic impurities in the bio-carbon powder, the respective operation states of the eddy-electric screening and color sorting screening of the bio-carbon powder in the hot sorting process are adjusted, as well as the respective discharge states of the eddy-electric screening and color sorting screening. For example, when the residual amount of metal impurities in a certain area inside the bio-carbon powder is too large, the eddy current intensity applied to the eddy electric screening operation in the corresponding area is increased; for example, when the residual amount of non-metallic impurities in a certain area inside the bio-carbon powder is too large, the frequency of color sorting and screening operations in the corresponding area is increased; for example, when the residual amount of metal impurities and non-metallic impurities in a certain area inside the bio-carbon powder is small enough, the respective discharge rates of eddy electric screening and color sorting are increased, thereby improving the accuracy of screening and removing metal impurities and non-metallic impurities in the bio-carbon powder and the purity of the screened bio-carbon powder.

[0037] See also Figure 3As shown, the present invention provides a garbage carbonization hydrogen production process control system, which includes the following modules: The pyrolysis oil and gas transmission adjustment module is used to adjust the transmission state of the pyrolysis oil and gas to the gas furnace based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage; The oil and gas combustion auxiliary operation adjustment module is used to estimate the combustion state characteristics of the pyrolysis oil and gas in the gas furnace based on the high-temperature flue gas output data of the gas furnace, so as to adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace; A drying environment identification module, used to determine the drying environment characteristics of the drying process based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process; The flue gas delivery adjustment module is used to predict the drying state information of the garbage entering the furnace in the drying process based on the characteristics of the drying environment, so as to adjust the delivery state of the medium-temperature flue gas to the drying process; A carbon powder screening identification module is used to determine the carbon powder screening characteristics of the thermal sorting process based on the screening status data of the biocarbon powder generated in the anaerobic pyrolysis process in the thermal sorting process; The screening operation and discharging adjustment module is used to adjust the screening operation state and discharging operation state of the bio-carbon powder in the hot sorting process based on the carbon powder screening characteristics.

[0038] Furthermore, the pyrolysis oil and gas delivery adjustment module is used to adjust the delivery state of the pyrolysis oil and gas to the gas furnace based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage, specifically: The internal environment of the anaerobic pyrolysis process of dry garbage is tested to obtain the pyrolysis oil and gas proportion change data and the pyrolysis oil and gas temperature change data of the internal environment; the pyrolysis oil and gas proportion change data and the pyrolysis oil and gas temperature change data are analyzed to obtain the pressure change characteristics of the pyrolysis oil and gas generated by the anaerobic pyrolysis process; based on the pyrolysis oil and gas pressure change characteristics, the delivery and release pressure state of the pyrolysis oil and gas to the gas furnace is adjusted.

[0039] Furthermore, the oil and gas combustion auxiliary operation adjustment module is used to estimate the combustion state characteristics of the pyrolysis oil and gas in the gas furnace based on the high-temperature flue gas output data of the gas furnace, so as to adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace, specifically: The high-temperature flue gas output after the gas furnace burns pyrolysis oil and gas is detected to obtain temperature change data and smoke particle concentration change data of the high-temperature flue gas; the temperature change data and smoke particle concentration change data are analyzed to estimate the combustion degree state characteristics of the pyrolysis oil and gas in the gas furnace; wherein the combustion degree state characteristics refer to the proportion of the fully burned portion of the pyrolysis oil and gas in the gas furnace; based on the combustion degree state characteristics, the atomization operation of the pyrolysis oil and gas in the gas furnace and / or the oxygen supply operation to the gas furnace are adjusted.

[0040] Furthermore, the drying environment identification module is used to determine the drying environment characteristics of the drying process based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process, specifically: The medium-temperature flue gas output from the anaerobic pyrolysis process to the internal space of the drying process is detected to obtain medium-temperature flue gas temperature data and medium-temperature flue gas pressure data; the medium-temperature flue gas temperature data and medium-temperature flue gas pressure data are analyzed to determine the heat flow motion state characteristics of the medium-temperature flue gas in the internal space, which are used as drying environment characteristics; wherein the heat flow motion state characteristics include the heat flow motion speed and motion direction of the internal space; The flue gas delivery adjustment module is used to predict the drying state information of the garbage entering the furnace in the drying process based on the characteristics of the drying environment, so as to adjust the delivery state of the medium-temperature flue gas to the drying process. Specifically: Based on the movement state characteristics of the heat flow and the movement state characteristics of the garbage entering the furnace in the internal space, the moisture evaporation rate information of the garbage entering the furnace under the action of the heat flow is predicted, and this is used as the drying state information of the garbage entering the furnace in the drying process; based on the moisture evaporation rate information, the delivery flow rate and / or delivery pressure of the medium-temperature flue gas to the internal space is adjusted.

[0041] Furthermore, the carbon powder screening identification module is used to determine the carbon powder screening characteristics of the thermal sorting process based on the screening state data of the biocarbon powder generated by the anaerobic pyrolysis process in the thermal sorting process, specifically: Visual identification is performed on the screening process of the biochar powder generated in the anaerobic pyrolysis process in the thermal sorting process to obtain the screening amount change data of the biochar powder in terms of metal impurities and non-metal impurities; the screening amount change data is analyzed to estimate the residual distribution characteristics of metal impurities and non-metal impurities in the biochar powder, which is used as the carbon powder screening characteristics; The screening operation and discharging adjustment module is used to adjust the screening operation state and discharging operation state of the hot sorting process for the biological carbon powder based on the carbon powder screening characteristics, specifically: Based on the residual distribution characteristics of metal impurities and non-metallic impurities in the bio-carbon powder, the operating states of the eddy-electric screening and color sorting of the bio-carbon powder in the hot sorting process are adjusted, and the discharging states of the eddy-electric screening and color sorting are adjusted; wherein the discharging state includes the discharging rate of the eddy-electric screening and color sorting.

[0042] The operation and effect of the garbage carbonization hydrogen production process control system of the present invention are corresponding to and consistent with the above-mentioned garbage carbonization hydrogen production process control method, and the garbage carbonization hydrogen production process control system will not be repeated here.

[0043] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by adding a necessary general hardware platform, and of course can also be implemented by combining hardware and software. Based on such an understanding, the above technical solution can essentially or in other words be embodied in the form of a computer product, and the present invention can be implemented in the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it, and other embodiments may also be used. Although the present invention has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A garbage carbonization hydrogen production process control method, characterized in that: The method comprises the following steps: Based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage, the delivery state of the pyrolysis oil and gas to the gas furnace is adjusted; based on the high-temperature flue gas output data of the gas furnace, the combustion state characteristics of the pyrolysis oil and gas in the gas furnace are estimated, thereby adjusting the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace; Based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process, the drying environment characteristics of the drying process are determined; based on the drying environment characteristics, the drying state information of the garbage entering the furnace in the drying process is predicted, so as to adjust the conveying state of the medium-temperature flue gas to the drying process; Based on the screening status data of the biochar generated by the anaerobic pyrolysis process in the thermal sorting process, the carbon powder screening characteristics of the thermal sorting process are determined; based on the carbon powder screening characteristics, the screening operation state and the discharging operation state of the biochar in the thermal sorting process are adjusted.

2. The method according to claim 1, characterized in that Based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage, the delivery state of the pyrolysis oil and gas to the gas furnace is adjusted, specifically: Detecting the internal environment of the anaerobic pyrolysis process of dry garbage to obtain the pyrolysis oil and gas ratio change data and the pyrolysis oil and gas temperature change data of the internal environment; analyzing the pyrolysis oil and gas ratio change data and the pyrolysis oil and gas temperature change data to obtain the pyrolysis oil and gas pressure change characteristics generated by the anaerobic pyrolysis process; Based on the pressure variation characteristics of the pyrolysis oil and gas, the pressure state of the pyrolysis oil and gas being delivered and released to the gas furnace is adjusted.

3. The method according to claim 2, characterized in that The combustion state characteristics of the pyrolysis oil and gas in the gas furnace are estimated based on the high-temperature flue gas output data of the gas furnace, so as to adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace, specifically: The high-temperature flue gas output after the gas furnace burns the pyrolysis oil and gas is detected to obtain temperature change data and smoke particle concentration change data of the high-temperature flue gas; the temperature change data and the smoke particle concentration change data are analyzed to estimate the combustion degree state characteristics of the pyrolysis oil and gas in the gas furnace; wherein the combustion degree state characteristics refer to the proportion of the fully burned portion of the pyrolysis oil and gas in the gas furnace; based on the combustion degree state characteristics, the atomization operation of the pyrolysis oil and gas in the gas furnace and / or the oxygen supply operation to the gas furnace are adjusted.

4. The method according to claim 1, characterized in that The method of determining the drying environment characteristics of the drying process based on the medium-temperature flue gas output data from the anaerobic pyrolysis process to the drying process; predicting the drying state information of the waste entering the furnace in the drying process based on the drying environment characteristics, thereby adjusting the conveying state of the medium-temperature flue gas to the drying process, specifically: The medium-temperature flue gas output from the anaerobic pyrolysis process to the internal space of the drying process is detected to obtain medium-temperature flue gas temperature data and medium-temperature flue gas pressure data; the medium-temperature flue gas temperature data and the medium-temperature flue gas pressure data are analyzed to determine the heat flow motion state characteristics of the medium-temperature flue gas in the internal space, and use them as the drying environment characteristics; wherein the heat flow motion state characteristics include the heat flow motion speed and motion direction of the heat flow in the internal space; Based on the movement state characteristics of the heat flow and the movement state characteristics of the garbage entering the furnace in the internal space, the moisture evaporation rate information of the garbage entering the furnace under the action of the heat flow is predicted, and this is used as the drying state information of the garbage entering the furnace in the drying process; based on the moisture evaporation rate information, the delivery flow rate and / or delivery pressure of the medium-temperature flue gas to the internal space is adjusted.

5. The method according to claim 1, characterized in that The screening state data of the biochar generated by the anaerobic pyrolysis process in the thermal sorting process is used to determine the carbon powder screening characteristics of the thermal sorting process; based on the carbon powder screening characteristics, the screening operation state and the discharge state of the biochar in the thermal sorting process are adjusted, specifically: Visually identify the screening process of the biochar powder generated in the anaerobic pyrolysis process in the thermal sorting process to obtain the screening amount change data of the metal impurities and non-metal impurities in the biochar powder; analyze the screening amount change data to estimate the residual distribution characteristics of the metal impurities and non-metal impurities in the biochar powder, and use this as the carbon powder screening characteristics; Based on the residual distribution characteristics of metal impurities and non-metallic impurities in the bio-carbon powder, the operating states of the eddy-electric screening and color sorting of the bio-carbon powder in the hot sorting process are adjusted, and the discharging states of the eddy-electric screening and the color sorting are adjusted; wherein the discharging states include the discharging rates of the eddy-electric screening and the color sorting.

6. A garbage carbonization hydrogen production process control system, characterized in that: The system includes the following modules: The pyrolysis oil and gas transmission adjustment module is used to adjust the transmission state of the pyrolysis oil and gas to the gas furnace based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage; An oil and gas combustion auxiliary operation adjustment module, used to estimate the combustion state characteristics of the pyrolysis oil and gas in the gas furnace based on the high-temperature flue gas output data of the gas furnace, so as to adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace; A drying environment identification module, for determining the drying environment characteristics of the drying process based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process; A flue gas delivery adjustment module, used to predict the drying state information of the garbage entering the furnace in the drying process based on the drying environment characteristics, so as to adjust the delivery state of the medium-temperature flue gas to the drying process; A carbon powder screening identification module, for determining the carbon powder screening characteristics of the thermal sorting process based on the screening state data of the biocarbon powder generated by the anaerobic pyrolysis process in the thermal sorting process; The screening operation and discharging adjustment module is used to adjust the screening operation state and the discharging operation state of the bio-carbon powder in the thermal sorting process based on the screening characteristics of the carbon powder.

7. The system according to claim 6, characterized in that The pyrolysis oil and gas delivery adjustment module is used to adjust the delivery state of the pyrolysis oil and gas to the gas furnace based on the pyrolysis oil and gas generation characteristics of the anaerobic pyrolysis process of dry garbage, specifically: Detecting the internal environment of the anaerobic pyrolysis process of dry garbage to obtain the pyrolysis oil and gas ratio change data and the pyrolysis oil and gas temperature change data of the internal environment; analyzing the pyrolysis oil and gas ratio change data and the pyrolysis oil and gas temperature change data to obtain the pyrolysis oil and gas pressure change characteristics generated by the anaerobic pyrolysis process; Based on the pressure variation characteristics of the pyrolysis oil and gas, the pressure state of the pyrolysis oil and gas being delivered and released to the gas furnace is adjusted.

8. The system according to claim 7, characterized in that The oil and gas combustion auxiliary operation adjustment module is used to estimate the combustion state characteristics of the pyrolysis oil and gas in the gas furnace based on the high-temperature flue gas output data of the gas furnace, so as to adjust the combustion auxiliary operation of the pyrolysis oil and gas in the gas furnace, specifically: The high-temperature flue gas output after the gas furnace burns the pyrolysis oil and gas is detected to obtain temperature change data and smoke particle concentration change data of the high-temperature flue gas; the temperature change data and the smoke particle concentration change data are analyzed to estimate the combustion degree state characteristics of the pyrolysis oil and gas in the gas furnace; wherein the combustion degree state characteristics refer to the proportion of the fully burned portion of the pyrolysis oil and gas in the gas furnace; based on the combustion degree state characteristics, the atomization operation of the pyrolysis oil and gas in the gas furnace and / or the oxygen supply operation to the gas furnace are adjusted.

9. The system according to claim 6, characterized in that The drying environment identification module is used to determine the drying environment characteristics of the drying process based on the output data of the medium-temperature flue gas from the anaerobic pyrolysis process to the drying process, specifically: The medium-temperature flue gas output from the anaerobic pyrolysis process to the internal space of the drying process is detected to obtain medium-temperature flue gas temperature data and medium-temperature flue gas pressure data; the medium-temperature flue gas temperature data and the medium-temperature flue gas pressure data are analyzed to determine the heat flow motion state characteristics of the medium-temperature flue gas in the internal space, and use them as the drying environment characteristics; wherein the heat flow motion state characteristics include the heat flow motion speed and motion direction of the heat flow in the internal space; The flue gas delivery adjustment module is used to predict the drying state information of the garbage entering the furnace in the drying process based on the drying environment characteristics, so as to adjust the delivery state of the medium-temperature flue gas to the drying process, specifically: Based on the movement state characteristics of the heat flow and the movement state characteristics of the garbage entering the furnace in the internal space, the moisture evaporation rate information of the garbage entering the furnace under the action of the heat flow is predicted, and this is used as the drying state information of the garbage entering the furnace in the drying process; based on the moisture evaporation rate information, the delivery flow rate and / or delivery pressure of the medium-temperature flue gas to the internal space is adjusted.

10. The system according to claim 6, characterized in that The carbon powder screening identification module is used to determine the carbon powder screening characteristics of the thermal sorting process based on the screening state data of the biological carbon powder generated in the anaerobic pyrolysis process in the thermal sorting process, specifically: Visually identify the screening process of the biochar powder generated in the anaerobic pyrolysis process in the thermal sorting process to obtain the screening amount change data of the metal impurities and non-metal impurities in the biochar powder; analyze the screening amount change data to estimate the residual distribution characteristics of the metal impurities and non-metal impurities in the biochar powder, and use this as the carbon powder screening characteristics; The screening operation and discharging adjustment module is used to adjust the screening operation state and discharging operation state of the bio-carbon powder in the thermal sorting process based on the carbon powder screening characteristics, specifically: Based on the residual distribution characteristics of metal impurities and non-metallic impurities in the bio-carbon powder, the operating states of the eddy-electric screening and color sorting of the bio-carbon powder in the hot sorting process are adjusted, and the discharging states of the eddy-electric screening and the color sorting are adjusted; wherein the discharging states include the discharging rates of the eddy-electric screening and the color sorting.

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