A biomass high-speed circulating fluidized bed gasification system, method and related device

Abstract

The present application provides a biomass high-speed circulating fluidized bed gasification system, method and related device, wherein a feeder obtains target attribute information of target biomass, determines a preset time interval corresponding to the target attribute information, and provides the target biomass to a circulating fluidized bed gasifier at preset time intervals; the target biomass is a crushed biomass raw material; a blower determines a target working parameter corresponding to the target attribute information, operates based on the target working parameter, and feeds air into the circulating fluidized bed gasifier; the circulating fluidized bed gasifier reacts the target biomass with the air in a dense phase region within a preset temperature range to obtain a first biomass gas; a high-temperature circulating separator separates the first biomass gas into gas-solids to obtain a second biomass gas and solid matter; the second biomass gas is a combustible gas; and a return feeder feeds the solid matter from the lower part of the furnace to the dense phase region to control the bed temperature of the circulating fluidized bed gasifier.

Description

Technical Field

[0001] The present application relates to the fields related to biology and new energy technology, and specifically to a biomass high-speed circulating fluidized bed gasification system, method and related devices. Background Art

[0002] In practical applications, biomass energy is an important energy source for human survival and occupies an important position in the entire energy system. Biomass energy is also the fourth largest energy consumption in the world after coal, oil and natural gas.

[0003] At present, there are many specific types of biomass, mainly referring to crops (rice straw, wheat straw, bean straw, cotton straw, straw, husk, etc.), wood, algae, weeds, etc. Moreover, my country's biomass energy is also extremely rich. Specifically, the biomass resources that can be developed as energy have reached more than 300 million tons of standard coal. With the rapid development of agriculture and forestry, especially with the development and promotion of fast-growing charcoal firewood forests, my country's biomass resources will also increase. Biomass energy has great development and utilization potential, but the utilization rate of biomass energy is not high. Therefore, how to improve the utilization efficiency of biomass energy needs to be solved urgently. Summary of the invention

[0004] The embodiments of the present application provide a biomass high-speed circulating fluidized bed gasification system, method and related devices, which can improve the utilization efficiency of biomass energy.

[0005] In a first aspect, the present application provides a biomass high-speed circulating fluidized bed gasification system, the system comprising: a feeder, a circulating fluidized bed gasifier, a high-temperature circulating separator, a blower and a return device; the circulating fluidized bed gasifier has a dense phase zone at the lower part of the furnace, and combustion and gasification reactions occur in the dense phase zone; wherein,

[0006] The feeder is used to obtain target attribute information of target biomass, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at the preset time interval; the target biomass is a crushed biomass raw material;

[0007] The blower is used to determine a target operating parameter corresponding to the target attribute information, and to operate based on the target operating parameter to supply air to the circulating fluidized bed gasifier;

[0008] The circulating fluidized bed gasifier is used to generate a chemical reaction between the target biomass and the air in the dense phase region within a preset temperature range to obtain a first biomass gas;

[0009] The high temperature circulation separator is used to separate the first biomass gas into gas and solid to obtain the second biomass gas and solid matter; the second biomass gas is a combustible gas;

[0010] The return device is used to transport the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier.

[0011] In a second aspect, an embodiment of the present application provides a biomass high-speed circulating fluidized bed gasification method, which is applied to the biomass high-speed circulating fluidized bed gasification system as described in the first aspect, and the method comprises:

[0012] Obtaining target attribute information of target biomass through the feeder, determining a preset time interval corresponding to the target attribute information, and providing the target biomass to the circulating fluidized bed gasifier at every preset time interval; the target biomass is a crushed biomass raw material;

[0013] Determining target operating parameters corresponding to the target attribute information by the blower, and operating based on the target operating parameters to supply air to the circulating fluidized bed gasifier;

[0014] The target biomass and the air are chemically reacted in the dense phase region by the circulating fluidized bed gasifier within a preset temperature range to obtain a first biomass gas;

[0015] The first biomass gas is separated into gas and solid by the high temperature circulation separator to obtain a second biomass gas and solid matter; the second biomass gas is a combustible gas;

[0016] The solid matter is sent from the lower part of the furnace to the dense phase zone through the return device to control the bed temperature of the circulating fluidized bed gasifier.

[0017] In a third aspect, the present application provides a biomass high-speed circulating fluidized bed gasification device, which is applied to the biomass high-speed circulating fluidized bed gasification system as described in the first aspect, and the device includes: a feeding unit, a gas supply unit, a gasification unit, a separation unit and a return unit, wherein:

[0018] The feeding unit is used to obtain target attribute information of target biomass through the feeder, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at the preset time interval; the target biomass is a crushed biomass raw material;

[0019] The air supply unit is used to determine the target operating parameters corresponding to the target attribute information through the blower, and work based on the target operating parameters to supply air to the circulating fluidized bed gasifier;

[0020] The gasification unit is used to generate a chemical reaction between the target biomass and the air in the dense phase region through the circulating fluidized bed gasifier within a preset temperature range to obtain a first biomass gas;

[0021] The separation unit is used to separate the first biomass gas from solids through the high-temperature circulation separator to obtain a second biomass gas and solid matter; the second biomass gas is a combustible gas;

[0022] The material return unit is used to send the solid matter from the lower part of the furnace to the dense phase zone through the material return device to control the bed temperature of the circulating fluidized bed gasifier.

[0023] In a fourth aspect, an embodiment of the present application provides an electronic device, comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in the second aspect of the embodiment of the present application.

[0024] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute part or all of the steps described in the second aspect of the embodiment of the present application.

[0025] In a sixth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps described in the second aspect of the embodiment of the present application. The computer program product may be a software installation package.

[0026] The implementation of the embodiments of the present application has the following beneficial effects:

[0027] It can be seen that the biomass high-speed circulating fluidized bed gasification system, method and related devices described in the embodiments of the present application, the system includes: a feeder, a circulating fluidized bed gasifier, a high-temperature circulating separator, a blower and a return feeder; the circulating fluidized bed gasifier has a dense phase zone in the lower part of the furnace, and combustion and gasification reactions occur in this dense phase zone; wherein the feeder is used to obtain target attribute information of the target biomass, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at every preset time interval; the target biomass is a crushed biomass raw material; the blower is used to determine the target working parameters corresponding to the target attribute information, and work based on the target working parameters to supply air to the circulating fluidized bed gasifier; the circulating fluidized bed gasifier is used to produce a chemical reaction between the target biomass and the air in the dense phase zone within a preset temperature range to obtain a first biomass gas; The ring separator is used to separate the first biomass gas from solid to obtain the second biomass gas and solid matter; the second biomass gas is a combustible gas; the return feeder is used to send the solid matter from the lower part of the furnace to the dense phase area to control the bed temperature of the circulating fluidized bed gasifier. First, based on the characteristics of the biomass, biomass can be provided to the circulating fluidized bed gasifier, which helps to ensure the efficiency of subsequent chemical reactions and improve the production efficiency of biomass gas. Second, based on the characteristics of the biomass, corresponding air transportation can be carried out, thereby ensuring the efficiency of subsequent chemical reactions and helping to improve the production efficiency of biomass gas. Third, it can ensure that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas. Fourth, the high-temperature circulating separator separates the first biomass gas from solid to obtain the second biomass gas and solid matter. The second biomass gas is a combustible gas. In this way, the purity of the biomass gas and the purity of the energy can be guaranteed. The high-temperature circulating separator may include a gasifier cyclone separator. Fifth, the return device sends solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, thereby ensuring that the circulating fluidized bed gasifier is within a preset temperature range, and further ensuring that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas, and further, the utilization efficiency of biomass energy can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of a biomass high-speed circulating fluidized bed gasification system provided in an embodiment of the present application;

[0030] Figure 2 It is a schematic flow diagram of a biomass high-speed circulating fluidized bed gasification method provided in an embodiment of the present application;

[0031] Figure 3 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0032] Figure 4 It is a functional unit composition block diagram of a biomass high-speed circulating fluidized bed gasification device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but in a possible example also includes steps or units that are not listed, or in a possible example also includes other steps or units inherent to these processes, methods, products or devices.

[0034] 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 application. The appearance of the phrase in various locations 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.

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] See also Figure 1 , Figure 1 The present invention provides a schematic structural diagram of a biomass high-speed circulating fluidized bed gasification system. As shown in the figure, the system includes: a feeder, a circulating fluidized bed gasifier, a high-temperature circulating separator, a blower and a return device; the circulating fluidized bed gasifier has a dense phase zone at the lower part of the furnace, and combustion and gasification reactions occur in the dense phase zone; wherein,

[0037] The feeder is used to obtain target attribute information of target biomass, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at the preset time interval; the target biomass is a crushed biomass raw material;

[0038] The blower is used to determine a target operating parameter corresponding to the target attribute information, and to operate based on the target operating parameter to supply air to the circulating fluidized bed gasifier;

[0039] The circulating fluidized bed gasifier is used to generate a chemical reaction between the target biomass and the air in the dense phase region within a preset temperature range to obtain a first biomass gas;

[0040] The high temperature circulation separator is used to separate the first biomass gas into gas and solid to obtain the second biomass gas and solid matter; the second biomass gas is a combustible gas;

[0041] The return device is used to transport the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier.

[0042] The target biomass may include at least one of the following: crops (rice straw, wheat straw, bean straw, cotton straw, straw, husk, etc.), wood, algae, weeds, etc., which are not limited here. The target biomass is a biomass raw material that has been broken.

[0043] The target attribute information may include at least one of the following: biomass type, biomass quality, biomass dryness, biomass crushing degree, biomass density, biomass origin, biomass purity, etc., which are not limited here.

[0044] The preset time interval may be preset or set by system default.

[0045] In a specific implementation, the feeder can be used to feed the circulating fluidized bed gasifier, that is, to transport the target biomass. Specifically, the target attribute information of the target biomass can be obtained, and the mapping relationship between the preset attribute information and the time interval can be pre-stored. Then, the preset time interval corresponding to the target attribute information can be determined based on the mapping relationship, and the target biomass can be provided to the circulating fluidized bed gasifier at every preset time interval. In this way, biomass can be provided to the circulating fluidized bed gasifier based on the characteristics of the biomass, which helps to ensure the efficiency of subsequent chemical reactions and improve the production efficiency of biomass gas.

[0046] Among them, the circulating fluidized bed gasification furnace can include a refractory and wear-resistant coating inside the furnace. The refractory and wear-resistant coating inside the furnace has a completely smooth transition, which greatly reduces wear and tear, has a long equipment maintenance interval, and reduces maintenance workload.

[0047] Among them, the target operating parameters may include at least one of the following: operating current, operating voltage, operating power, blowing speed, air volume, blowing time, operating frequency, etc., which are not limited here.

[0048] In a specific implementation, a mapping relationship between preset attribute information and working parameters can be pre-stored. Then, the blower can determine the target working parameters with the target attribute information based on the mapping relationship, and then work based on the target working parameters to deliver air to the circulating fluidized bed gasifier through the air distribution plate. In this way, corresponding air delivery can be carried out based on the characteristics of the biomass, thereby ensuring the efficiency of subsequent chemical reactions and helping to improve the production efficiency of material gas.

[0049] The preset temperature range may be preset or set by system default. Different biomasses may correspond to different temperature ranges. A mapping relationship between preset biomasses and temperature ranges may be pre-stored, and then a target temperature range corresponding to the target biomass may be determined based on the mapping relationship.

[0050] The first biomass gas may include at least one of the following: carbon monoxide (CO), hydrogen (H2), methane (CH4), etc., which are not limited here. The second biomass gas may also include at least one of the following: carbon monoxide (CO), hydrogen (H2), methane (CH4), etc., which are not limited here.

[0051] In a specific implementation, the circulating fluidized bed gasifier produces a chemical reaction between the target biomass and the air in a dense phase area within a preset temperature range to obtain the first biomass gas. In this way, it can be ensured that the target biomass produces a chemical reaction within the optimal temperature range, thereby ensuring the production efficiency of the biomass gas.

[0052] In a specific implementation, since there are impurities in the first biomass gas, the high temperature circulation separator separates the first biomass gas from solid to obtain the second biomass gas and solid matter, and the second biomass gas is a combustible gas, so that the purity of the biomass gas and the purity of the energy can be guaranteed. The high temperature circulation separator may include a gasifier cyclone separator.

[0053] Among them, the return feeder sends solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, thereby ensuring that the circulating fluidized bed gasifier is within the preset temperature range, and further ensuring that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas.

[0054] In specific implementation, the crushed biomass raw materials can be efficiently gasified in a high-speed circulating fluidized bed gasification device, and the gas temperature at the outlet of the gasifier is above 700°C; the circulating fluidized bed gasifier has a dense phase area at the lower part of the gasifier furnace, and the combustion and gasification reactions occur in the dense phase area. Under the action of the gasifier (air) entering from the air distribution plate, the material particles, sand, and gasification medium are fully in contact, heated evenly, and in a "fluidized" state in the furnace, with a fast gasification reaction speed and a high gas production rate.

[0055] Optionally, in the determination of the target operating parameter related to the target attribute information, the blower is specifically used for:

[0056] Determining reference operating parameters corresponding to the target attribute information;

[0057] Obtaining target environmental parameters of the circulating fluidized bed gasifier;

[0058] Determining a target adjustment parameter corresponding to the target environmental parameter;

[0059] determining a target air property parameter corresponding to the air;

[0060] Determining a target fine-tuning parameter corresponding to the target air property parameter;

[0061] The reference operating parameter is adjusted according to the target adjustment parameter and the target fine-tuning parameter to obtain the target operating parameter.

[0062] In the embodiment of the present application, a mapping relationship between preset attribute information and working parameters can be pre-stored, and then, a reference working parameter corresponding to the target attribute information can be determined based on the mapping relationship.

[0063] The target environmental parameters include at least one of the following: temperature, humidity, space size of dense phase area, etc., which are not limited here. The target air attribute parameters may include at least one of the following: atmospheric pressure, oxygen content, carbon dioxide content, etc., which are not limited here.

[0064] In a specific implementation, the target environmental parameters of the circulating fluidized bed gasifier can be obtained, and the mapping relationship between the preset environmental parameters and the adjustment parameters can be pre-stored. The value range of the adjustment parameters can be -0.2~0.2. The target adjustment parameters corresponding to the target environmental parameters can be determined based on the mapping relationship. The target air attribute parameters corresponding to the air can also be determined, and the mapping relationship between the preset air attribute parameters and the fine-tuning parameters can be pre-stored. The value range of the fine-tuning parameters can be -0.8~0.8. Then, the target fine-tuning parameters corresponding to the target air attribute parameters can be determined based on the mapping relationship. Finally, according to the target adjustment parameters , target fine-tuning parameters adjust the reference working parameters to obtain target working parameters, that is, target working parameters = reference working parameters * (1 + target adjustment parameters) * (1 + target fine-tuning parameters). In this way, on the one hand, considering the environmental impact of the circulating fluidized bed gasifier, the working parameters of the blower are adjusted so that the adjusted working parameters are in line with the actual environment of the circulating fluidized bed gasifier. On the other hand, considering the impact of the transported air, the working parameters are further fine-tuned so that the fine-tuned working parameters are more adapted to the optimal chemical reaction environment, thereby ensuring that the target biomass can produce chemical reactions under the optimal environment, thereby ensuring the production efficiency of biomass gas.

[0065] Optionally, the circulating fluidized bed gasifier is further specifically used for:

[0066] Determine a reference temperature range corresponding to the target attribute information, the reference temperature range comprising an upper threshold and a lower threshold;

[0067] determining target structural parameters of the circulating fluidized bed gasifier;

[0068] Determining a first optimization parameter corresponding to the target structural parameter;

[0069] Optimizing the upper threshold according to the first optimization parameter to obtain a target upper threshold;

[0070] determining a target purity of the target biomass;

[0071] determining a second optimization parameter corresponding to the target purity;

[0072] Optimizing the lower threshold according to the second optimization parameter to obtain a target lower threshold;

[0073] The preset temperature range is determined according to the target lower threshold and the target upper threshold.

[0074] In the embodiment of the present application, the mapping relationship between the preset attribute information and the temperature range can be pre-stored, that is, different biomass can adapt to the corresponding temperature range in different states, and then, the reference temperature range corresponding to the target attribute information can be determined based on the mapping relationship, and the reference temperature range includes an upper threshold and a lower threshold. The upper threshold and the lower threshold can be preset or the system defaults.

[0075] Next, the target structural parameters may include at least one of the following: the material of the circulating fluidized bed gasifier, the shape of the circulating fluidized bed gasifier, the space size of the circulating fluidized bed gasifier, the thickness of the circulating fluidized bed gasifier, the channel structure in the circulating fluidized bed gasifier, etc., which are not limited here.

[0076] In a specific implementation, the target structural parameters of the circulating fluidized bed gasifier can be determined, and the mapping relationship between the preset structural parameters and the optimization parameters can be pre-stored. The value range of the optimization parameters can be 0~0.2. Then, the first optimization parameter corresponding to the target structural parameter can be determined based on the mapping relationship. Since the structure of the circulating fluidized bed gasifier will limit the reaction temperature to a certain extent, the upper limit threshold can be optimized according to the first optimization parameter to obtain the target upper limit threshold, that is, the target upper limit threshold = (1+first optimization parameter)*upper limit threshold.

[0077] Next, the target purity of the target biomass can also be determined. The purity to a certain extent indicates the degree to which the biomass contains impurities, and the impurities will reduce the chemical reaction activity to a certain extent. Therefore, the mapping relationship between the preset purity and the optimization parameter can be stored in advance. The value range of the optimization parameter can be 0~0.1. Then, the second optimization parameter corresponding to the target purity can be determined based on the mapping relationship. Then, the lower limit threshold can be optimized according to the second optimization parameter to obtain the target lower limit threshold. The target lower limit threshold = (1+second optimization parameter)*lower limit threshold. Finally, the preset temperature range can be determined according to the target lower limit threshold and the target upper limit threshold, that is, the lower limit of the preset temperature range is the target lower limit threshold, and the upper limit is the target upper limit Threshold, so, on the one hand, different biomass can be considered, which requires different chemical reaction temperatures under different conditions. Therefore, the optimal theoretical temperature range (reference temperature range) can be adapted for the target biomass, and the theoretical temperature range includes an upper threshold and a lower threshold. On the other hand, due to the structural limitation of the circulating fluidized bed gasifier on the reaction temperature, the upper threshold is dynamically optimized based on the specific structure, and the purity of the biomass will reduce the chemical reaction activity. Then, the lower threshold is dynamically optimized to compensate for the influence of purity, so that the temperature effect is more in line with the actual situation, thereby helping to ensure that the target biomass can produce chemical reactions in the optimal environment (temperature), thereby ensuring the production efficiency of biomass gas.

[0078] In the specific implementation, temperature and pressure control can be used, and nitrogen temperature control can also be used in the circulating fluidized bed gasifier to achieve a reasonable distribution of temperature in the furnace, ensure normal gasification of biomass, and reduce biomass slagging. By reasonably setting the zero pressure point, the biomass feeding port is kept at a slight negative pressure to avoid gas leakage outside the furnace and cause danger.

[0079] Optionally, in the aspect of determining the first optimization parameter corresponding to the target structural parameter, the circulating fluidized bed gasifier is further specifically used for:

[0080] Determining reference optimization parameters corresponding to the target structural parameters;

[0081] Acquire historical optimization parameters of the circulating fluidized bed gasifier to obtain a plurality of historical optimization parameters, each of which corresponds to a historical moment;

[0082] Perform fitting according to the multiple historical optimization parameters and corresponding historical moments to obtain a fitting straight line and a fitting curve;

[0083] Obtaining a target slope corresponding to the fitting straight line;

[0084] Determine the extreme points of the fitting curve to obtain multiple extreme points;

[0085] Determine the absolute value of the difference between adjacent limit values ​​according to the multiple extreme value points to obtain multiple absolute values;

[0086] determining a target mean square error and a target mean of the plurality of absolute values;

[0087] determining a first influencing parameter corresponding to the target slope;

[0088] determining a second influencing parameter corresponding to the target mean;

[0089] Determining a first compensation parameter corresponding to the target mean square error;

[0090] Selecting the maximum and minimum values ​​among the multiple absolute values;

[0091] determining a first degree of deviation between the maximum value and the minimum value;

[0092] determining a second compensation parameter corresponding to the first deviation;

[0093] Compensating the second influencing parameter according to the first compensation parameter and the second compensation parameter to obtain a third influencing parameter;

[0094] The reference optimization parameter is dynamically adjusted according to the first influencing parameter and the third influencing parameter to obtain the first optimization parameter.

[0095] In an embodiment of the present application, a mapping relationship between preset structural parameters and optimization parameters can be pre-stored, and a reference optimization parameter corresponding to the target structural parameter can be determined based on the mapping relationship. The historical optimization parameters of the circulating fluidized bed gasifier can also be obtained to obtain multiple historical optimization parameters, each of which corresponds to a historical moment. Due to different moments, the structure of the circulating fluidized bed gasifier is also changing. For example, ash may accumulate on the inner wall of the circulating fluidized bed gasifier, the inner wall of the circulating fluidized bed gasifier may also be deformed, and the channel of the circulating fluidized bed gasifier may also be deformed, etc. Then, fitting can be performed according to multiple historical optimization parameters and corresponding historical moments. For example, each historical optimization parameter and its corresponding historical moment can be regarded as a coordinate point, and multiple historical optimization parameters can correspond to multiple coordinate points. These coordinate points are mapped in a coordinate system, the horizontal axis of which is time and the vertical axis is the historical structural parameter. Then, fitting can be performed based on the multiple coordinate points to obtain a fitting straight line and a fitting curve.

[0096] In a specific implementation, the target slope corresponding to the fitting line can be obtained, and the slope reflects the decay trend and decay rate of the circulating fluidized bed gasifier. In a specific implementation, the mapping relationship between the preset slope and the influencing parameter can be pre-stored, and then the first influencing parameter corresponding to the target slope can be determined based on the mapping relationship. Since the slope reflects the decay trend and decay rate of the circulating fluidized bed gasifier, it reflects the impact of the equipment environment of the circulating fluidized bed gasifier itself, and then, the impact of the equipment environment of the circulating fluidized bed gasifier itself can be deeply evaluated.

[0097] Next, the extreme points of the fitting curve can also be determined to obtain multiple extreme points, including maximum points and minimum points. The absolute value of the difference between adjacent limit values ​​can be determined based on the multiple extreme points to obtain multiple absolute values. The absolute value reflects the working stability of the circulating fluidized bed gasifier to a certain extent. The target mean square error and target mean of the multiple absolute values ​​can be determined, and the mapping relationship between the preset mean and the influencing parameter can be pre-stored. Then, the second influencing parameter corresponding to the target mean can be determined based on the mapping relationship. The mapping relationship between the preset mean square error and the compensation parameter can also be pre-stored. Then, the first compensation parameter corresponding to the target mean square error can be determined based on the mapping relationship. The mean square error reflects the degree of fluctuation of the working stability of the circulating fluidized bed gasifier to a certain extent.

[0098] Next, you can also select the maximum and minimum values ​​from multiple absolute values, and then determine the first deviation between the maximum and minimum values, the first deviation = (maximum value - minimum value) / maximum value, the deviation reflects the fluctuation range of the stability of the circulating fluidized bed gasifier to a certain extent, and the mapping relationship between the preset deviation and the compensation parameter can be pre-stored, and then, based on the mapping relationship, the second compensation parameter corresponding to the first deviation can be determined, and then the second influencing parameter is compensated according to the first compensation parameter and the second compensation parameter to obtain the third influencing parameter, the third influencing parameter = second influencing parameter * (1 + first compensation parameter) * (1 + second compensation parameter), in this way, the fluctuation degree and fluctuation range of the working stability of the circulating fluidized bed gasifier can be considered to dynamically compensate for the working stability of the circulating fluidized bed gasifier, and then, the impact of the working stability of the circulating fluidized bed gasifier can be deeply evaluated.

[0099] Finally, the reference optimization parameter can be dynamically adjusted according to the first influencing parameter and the third influencing parameter to obtain the first optimization parameter, that is, the first optimization parameter = reference optimization parameter * (1 + first influencing parameter) * (1 + third influencing parameter). On the one hand, since the slope reflects the decay trend and decay rate of the circulating fluidized bed gasifier, it reflects the impact of the equipment environment of the circulating fluidized bed gasifier itself, and thus, the impact of the equipment environment of the circulating fluidized bed gasifier itself can be deeply evaluated. On the other hand, the working stability of the circulating fluidized bed gasifier is dynamically compensated by considering the fluctuation degree and fluctuation amplitude of the working stability of the circulating fluidized bed gasifier. Thus, the impact of the working stability of the circulating fluidized bed gasifier can be deeply evaluated. In this way, based on the changes in the structural parameters of the circulating fluidized bed gasifier, the temperature control of the biomass is dynamically optimized, so that the temperature control effect is more in line with the actual situation, thereby helping to ensure that the target biomass can produce chemical reactions in the optimal environment (temperature), thereby ensuring the production efficiency of the biomass gas.

[0100] In specific implementation, the furnace design can be based on the characteristics of biomass gasification to ensure that a uniform and stable high temperature state is maintained in the furnace. A cylindrical furnace is used and the air distribution plate is reasonably designed to avoid slagging caused by poor fluidization of the bed material. Under high temperature and good mass and heat transfer conditions, the combustible components in the biomass can fully react to achieve efficient gasification. The refractory and wear-resistant coating in the furnace has a completely smooth transition, which greatly reduces wear, and the equipment maintenance interval is long, with a small maintenance workload.

[0101] Optionally, the first biomass gas is further used for:

[0102] Determining a first gas mass ratio value of the first biomass gas;

[0103] The blower is also used for:

[0104] Determining a second deviation between the first gas mass ratio value and a preset gas mass ratio value;

[0105] determining a first feedback adjustment parameter corresponding to the second deviation;

[0106] Feedback adjustment is performed on the target operating parameter according to the first feedback adjustment parameter to obtain the target operating parameter after feedback adjustment, and operation is performed based on the target operating parameter after feedback adjustment.

[0107] The first gas mass ratio value of the first biomass gas=the gas mass in the first biomass gas / (the gas mass in the first biomass gas+the solid mass in the first biomass gas).

[0108] The first gas mass ratio value reflects the chemical reaction efficiency to a certain extent, that is, the chemical reaction efficiency refers to the degree of reaction, which can be specifically understood as the maximum conversion rate of a reaction from reactants to products.

[0109] The preset gas mass ratio value may be preset or set by system default.

[0110] Furthermore, a second deviation between the first gas mass ratio value and the preset gas mass ratio value can also be determined, the second deviation = (first gas mass ratio value-preset gas mass ratio value) / (first gas mass ratio value+preset gas mass ratio value), and then, a mapping relationship between the preset deviation and the feedback adjustment parameter can be pre-stored, and then, the first feedback adjustment parameter corresponding to the second deviation can be determined based on the mapping relationship, and finally, the target operating parameter can be feedback-adjusted according to the first feedback adjustment parameter to obtain the target operating parameter after feedback adjustment, and work is performed based on the target operating parameter after feedback adjustment. In this way, since the first gas mass ratio value reflects the chemical reaction efficiency to a certain extent, the working parameters of the blower can also be dynamically optimized based on the degree of deviation (second deviation) between the chemical reaction efficiency and the expected effect (preset gas mass ratio value) to further ensure the air supply, thereby helping to ensure that the target biomass can produce chemical reactions in the optimal environment (air), thereby ensuring the production efficiency of the biomass gas.

[0111] Optionally, the high temperature circulation separator is further specifically used for:

[0112] Determining a second gas mass ratio value of the second biomass gas;

[0113] determining a target separation efficiency according to the first gas mass ratio value and the second gas mass ratio value;

[0114] In terms of conveying the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, the return device is specifically used for:

[0115] Determining a reference return material operating parameter corresponding to the first gas mass ratio value;

[0116] determining a second feedback adjustment parameter corresponding to the target separation efficiency;

[0117] Feedback-adjust the reference material recycling working parameter according to the second feedback adjustment parameter to obtain a target material recycling working parameter;

[0118] The material return device is controlled to work according to the target material return working parameter to transport the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier.

[0119] The first gas mass ratio value of the second biomass gas=gas mass in the second biomass gas / (gas mass in the second biomass gas+solid mass in the second biomass gas).

[0120] In the embodiment of the present application, the second gas mass ratio value of the second biomass gas can also be determined, and then the target separation efficiency can be determined based on the first gas mass ratio value and the second gas mass ratio value, and the target separation efficiency = (second gas mass ratio value - first gas mass ratio value) / first gas mass ratio value.

[0121] Among them, the return material working parameters may include at least one of the following: return material frequency, return material speed, return material duration, etc., which are not limited here.

[0122] Next, the mapping relationship between the preset gas mass ratio value and the return material working parameter can be pre-stored, and then the reference return material working parameter corresponding to the first gas mass ratio value can be determined based on the mapping relationship. Since the first gas mass ratio value reflects the chemical reaction efficiency to a certain extent, the corresponding return material working parameter can be dynamically determined based on the chemical reaction efficiency. The mapping relationship between the preset separation efficiency and the feedback adjustment parameter can also be pre-stored, and then the second feedback adjustment parameter corresponding to the target separation efficiency can be determined based on the mapping relationship, and then the reference return material working parameter is feedback-adjusted according to the second feedback adjustment parameter. , get the target return material working parameter, target return material working parameter = (1 + second feedback adjustment parameter) * reference return material working parameter. In this way, the separation efficiency reflects the solid production efficiency to a certain extent. The reference return material working parameter can be adjusted based on the separation efficiency feedback. The return material device is controlled to work according to the target return material working parameter to send the solid material from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, so that the temperature control effect is more in line with the actual situation. The temperature control can be dynamically realized based on the separation efficiency and the chemical reaction efficiency, and the target biomass is always kept at the optimal temperature to produce chemical reaction, thereby ensuring the production efficiency of biomass gas.

[0123] Optionally, the circulating fluidized bed gasifier includes a front vertical shaft, a middle vertical shaft and a rear vertical shaft;

[0124] The front shaft includes an insulated furnace and is a supporting structure;

[0125] The middle shaft includes a gasifier cyclone separator and a supporting structure; the lower part of the gasifier cyclone separator is connected to the return device;

[0126] The tail shaft includes a dust separator;

[0127] The circulating fluidized bed gasifier is ignited by diesel fuel under the bed.

[0128] In the embodiment of the present application, the circulating fluidized bed gasifier can adopt a high-temperature separation circulating fluidized bed gasifier for burning biomass. The gasifier is composed of three vertical shafts: the front, middle and rear. The front vertical shaft is an insulated furnace, which is a supporting structure. The middle vertical shaft is a cyclone separator of the gasifier, which adopts a supporting structure. The lower part of the cyclone separator of the gasifier is connected to a return device, and the ash discharge pipe of the return device is connected to the gasification chamber. A dust separator is set at the rear, and the gasifier is ignited by diesel under the bed. During normal operation, the furnace temperature of the gasifier can be always controlled at about 700-750℃, and the gasification air volume is controlled to make the furnace area present a high temperature and low oxygen environment. The biomass fuel produces biomass gas containing combustible gas components such as carbon monoxide, hydrogen, and methane after dry distillation, pyrolysis and chemical oxidation reactions.

[0129] Then, the high-temperature combustion gas carries solid particles into the gasifier cyclone separator for gas-solid separation. The separated particles enter the return material device and are sent from the lower part of the furnace to the dense phase area through the return material device to control the bed temperature.

[0130] Of course, the fuel gas coming out of the gasifier cyclone separator enters the dust separator to further separate the solid particles in the biomass gas and improve the quality of the combustible gas. The clean fuel gas coming out of the gasifier is burned through an overhead pipeline to the inlet of the steam boiler burner. The separated ash passes through a water-cooled ash cooler and the temperature is reduced to below 70°C for collection and recovery.

[0131] Optionally, the feeder includes a material shed, a loading vehicle, an electric vibrating screen, an underground silo, a screw feeder, a belt conveyor, a furnace silo, a variable frequency auger, a star feeder and a high-speed auger, and the furnace silo includes a silo wall vibrator and a feeder; wherein,

[0132] The target biomass stored in the material shed is transported by the loader to the electric vibration screen and falls into the underground silo; it is transferred to the belt conveyor after being distributed to the screw feeder and sent to the silo in front of the furnace, and falls into the variable frequency auger under the action of the silo wall vibrator and the feeder, and enters the circulating fluidized bed gasifier through the star feeder and the high-speed auger.

[0133] In the specific implementation, the biomass materials stored in the material shed are transported by a loader to the electric vibrating screen and fall into the underground silo, and are transferred to the belt conveyor through a distribution screw feeder and sent to the silo in front of the furnace. Under the action of the silo wall vibrator and the feeder, they fall into the variable frequency auger and enter the gasifier furnace through the star feeder and high-speed auger to complete efficient gasification.

[0134] Optionally, the circulating fluidized bed gasifier further includes a catalyst supply device, and the circulating fluidized bed gasifier is further specifically used for:

[0135] determining a target catalyst corresponding to the target biomass;

[0136] determining a reference supply parameter of the target catalyst corresponding to the target attribute information;

[0137] Determining a first adjustment parameter corresponding to the target environmental parameter;

[0138] determining a second adjustment parameter corresponding to the first gas mass ratio value;

[0139] Adjust the reference supply parameter according to the first adjustment parameter and the second adjustment parameter to obtain a target supply parameter;

[0140] The catalyst supply device is controlled to supply the target catalyst with the target supply parameter.

[0141] The reference supply parameters may include at least one of the following: supply speed, supply dosage, supply position, supply area, etc., which are not limited here.

[0142] In the embodiment of the present application, different biomasses can use different catalysts, and the catalyst can increase the speed of chemical reactions to a certain extent. Specifically, the mapping relationship between preset biomasses and catalysts can be pre-stored, and then the target catalyst corresponding to the target biomass can be determined based on the mapping relationship. The mapping relationship between preset attribute information and the supply parameters of the target catalyst can also be pre-stored, and then the reference supply parameters of the target catalyst corresponding to the target attribute information can be determined based on the mapping relationship. That is, different catalyst supply methods can be different, and the corresponding supply method can be determined for the target catalyst.

[0143] Furthermore, the mapping relationship between the preset environmental parameters and the adjustment parameters can be pre-stored, and then, the first adjustment parameter corresponding to the target environmental parameter can be determined based on the mapping relationship. Considering that different temperatures, humidity, and the spatial size of the dense phase zone all have an impact on the catalytic effect of the catalyst, the depth of the catalytic effect can be made to conform to the actual situation. In addition, the mapping relationship between the preset gas mass ratio value and the adjustment parameter can be pre-stored, and then, the second adjustment parameter corresponding to the first gas mass ratio value can be determined based on the mapping relationship, that is, the supply of the catalyst is dynamically adjusted considering the chemical reaction efficiency to further ensure the chemical reaction efficiency. Next, the reference supply parameter can be adjusted according to the first adjustment parameter and the second adjustment parameter to obtain the target supply parameter, the target supply parameter = (1 + first adjustment parameter) * (1 + second adjustment parameter) * reference supply parameter, which not only makes the depth of the catalytic effect conform to the actual situation, but also dynamically feedback adjusts the working parameters of the catalyst in combination with its chemical reaction efficiency to further ensure the chemical reaction efficiency. Then, the catalyst supply device is controlled to supply the target catalyst with the target supply parameter, which helps to ensure that the target biomass can produce a chemical reaction in the optimal environment (catalytic effect), thereby ensuring the production efficiency of the biomass gas.

[0144] It can be seen that the biomass high-speed circulating fluidized bed gasification system described in the embodiment of the present application, firstly, can provide biomass to the circulating fluidized bed gasifier based on the characteristics of the biomass, which helps to ensure the efficiency of subsequent chemical reactions and improve the production efficiency of biomass gas; secondly, can perform corresponding air transportation based on the characteristics of the biomass, thereby ensuring the efficiency of subsequent chemical reactions and helping to improve the production efficiency of material gas; thirdly, can ensure that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas; fourthly, the high-temperature circulating separator separates the first biomass gas into gas-solids to obtain a second biomass gas and solid matter, and the second biomass gas is a combustible gas. In this way, the purity of the biomass gas can be guaranteed, and the purity of the energy can be guaranteed. The high-temperature circulating separator may include a gasifier cyclone separator. Fifth, the return device sends solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, thereby ensuring that the circulating fluidized bed gasifier is within a preset temperature range, and further ensuring that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas, and further, the utilization efficiency of biomass energy can be improved.

[0145] See also Figure 2 , Figure 2 This is a schematic diagram of a biomass high-speed circulating fluidized bed gasification method provided in the present application example, which is applied to Figure 1 The biomass high-speed circulating fluidized bed gasification system shown in the figure comprises: a feeder, a circulating fluidized bed gasifier, a high-temperature circulating separator, a blower and a return device; the circulating fluidized bed gasifier has a dense phase area at the lower part of the furnace, and combustion and gasification reactions both occur in the dense phase area; as shown in the figure, the biomass high-speed circulating fluidized bed gasification method comprises:

[0146] 201. Obtain target attribute information of target biomass through the feeder, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at every preset time interval; the target biomass is a crushed biomass raw material.

[0147] 202. Determine, by the blower, a target operating parameter corresponding to the target attribute information, and operate based on the target operating parameter to supply air to the circulating fluidized bed gasifier.

[0148] 203. The target biomass and the air undergo a chemical reaction in the dense phase region within a preset temperature range through the circulating fluidized bed gasifier to obtain a first biomass gas.

[0149] 204. Separate the first biomass gas from solids by the high-temperature circulation separator to obtain a second biomass gas and solid matter; the second biomass gas is a combustible gas.

[0150] 205. The solid matter is sent from the lower part of the furnace to the dense phase zone through the return device to control the bed temperature of the circulating fluidized bed gasifier.

[0151] The specific description of the above steps 201 to 205 can refer to the above Figure 1 The description of the biomass high-speed circulating fluidized bed gasification system will not be repeated here.

[0152] It can be seen that the biomass high-speed circulating fluidized bed gasification method described in the embodiment of the present application, firstly, can provide biomass to the circulating fluidized bed gasifier based on the characteristics of the biomass, which helps to ensure the efficiency of subsequent chemical reactions and improve the production efficiency of biomass gas; secondly, can perform corresponding air transportation based on the characteristics of the biomass, thereby ensuring the efficiency of subsequent chemical reactions and helping to improve the production efficiency of material gas; thirdly, can ensure that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas; fourthly, the high-temperature circulating separator separates the first biomass gas into gas-solids to obtain a second biomass gas and solid matter, and the second biomass gas is a combustible gas. In this way, the purity of the biomass gas can be guaranteed, and the purity of the energy can be guaranteed. The high-temperature circulating separator may include a gasifier cyclone separator. Fifth, the return device sends solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, thereby ensuring that the circulating fluidized bed gasifier is within a preset temperature range, and further ensuring that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas, and further, the utilization efficiency of biomass energy can be improved.

[0153] In accordance with the above embodiment, please refer to Figure 3 , Figure 3 : is a structural schematic diagram of an electronic device provided in an embodiment of the present application. As shown in the figure, the electronic device includes a processor, a memory, a communication interface and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the processor. In the embodiment of the present application, the electronic device is applied to a biomass high-speed circulating fluidized bed gasification system, the system includes: a feeder, a circulating fluidized bed gasifier, a high-temperature circulating separator, a blower and a returner; the circulating fluidized bed gasifier has a dense phase zone at the lower part of the furnace, and combustion and gasification reactions both occur in the dense phase zone; the program includes instructions for executing the following steps:

[0154] Obtaining target attribute information of target biomass through the feeder, determining a preset time interval corresponding to the target attribute information, and providing the target biomass to the circulating fluidized bed gasifier at every preset time interval; the target biomass is a crushed biomass raw material;

[0155] Determining target operating parameters corresponding to the target attribute information by the blower, and operating based on the target operating parameters to supply air to the circulating fluidized bed gasifier;

[0156] The target biomass and the air are chemically reacted in the dense phase region by the circulating fluidized bed gasifier within a preset temperature range to obtain a first biomass gas;

[0157] The first biomass gas is separated into gas and solid by the high temperature circulation separator to obtain a second biomass gas and solid matter; the second biomass gas is a combustible gas;

[0158] The solid matter is sent from the lower part of the furnace to the dense phase zone through the return device to control the bed temperature of the circulating fluidized bed gasifier.

[0159] Optionally, in determining the target operating parameter related to the target attribute information, the program includes instructions for performing the following steps:

[0160] Determining reference operating parameters corresponding to the target attribute information;

[0161] Obtaining target environmental parameters of the circulating fluidized bed gasifier;

[0162] Determining a target adjustment parameter corresponding to the target environmental parameter;

[0163] determining a target air property parameter corresponding to the air;

[0164] Determining a target fine-tuning parameter corresponding to the target air property parameter;

[0165] The reference operating parameter is adjusted according to the target adjustment parameter and the target fine-tuning parameter to obtain the target operating parameter.

[0166] Optionally, the program further includes instructions for executing the following steps:

[0167] Determine a reference temperature range corresponding to the target attribute information, the reference temperature range comprising an upper threshold and a lower threshold;

[0168] determining target structural parameters of the circulating fluidized bed gasifier;

[0169] Determining a first optimization parameter corresponding to the target structural parameter;

[0170] Optimizing the upper threshold according to the first optimization parameter to obtain a target upper threshold;

[0171] determining a target purity of the target biomass;

[0172] determining a second optimization parameter corresponding to the target purity;

[0173] Optimizing the lower threshold according to the second optimization parameter to obtain a target lower threshold;

[0174] The preset temperature range is determined according to the target lower threshold and the target upper threshold.

[0175] Optionally, in the aspect of determining the first optimization parameter corresponding to the target structural parameter, the program includes instructions for performing the following steps:

[0176] Determining reference optimization parameters corresponding to the target structural parameters;

[0177] Acquire historical optimization parameters of the circulating fluidized bed gasifier to obtain a plurality of historical optimization parameters, each of which corresponds to a historical moment;

[0178] Perform fitting according to the multiple historical optimization parameters and corresponding historical moments to obtain a fitting straight line and a fitting curve;

[0179] Obtaining a target slope corresponding to the fitting straight line;

[0180] Determine the extreme points of the fitting curve to obtain multiple extreme points;

[0181] Determine the absolute value of the difference between adjacent limit values ​​according to the multiple extreme value points to obtain multiple absolute values;

[0182] determining a target mean square error and a target mean of the plurality of absolute values;

[0183] determining a first influencing parameter corresponding to the target slope;

[0184] determining a second influencing parameter corresponding to the target mean;

[0185] Determining a first compensation parameter corresponding to the target mean square error;

[0186] Selecting the maximum and minimum values ​​among the multiple absolute values;

[0187] determining a first degree of deviation between the maximum value and the minimum value;

[0188] determining a second compensation parameter corresponding to the first deviation;

[0189] Compensating the second influencing parameter according to the first compensation parameter and the second compensation parameter to obtain a third influencing parameter;

[0190] The reference optimization parameter is dynamically adjusted according to the first influencing parameter and the third influencing parameter to obtain the first optimization parameter.

[0191] Optionally, the program includes instructions for performing the following steps:

[0192] Determining a first gas mass ratio value of the first biomass gas;

[0193] determining, by the blower, a second deviation between the first gas mass ratio value and a preset gas mass ratio value;

[0194] determining a first feedback adjustment parameter corresponding to the second deviation;

[0195] Feedback adjustment is performed on the target operating parameter according to the first feedback adjustment parameter to obtain the target operating parameter after feedback adjustment, and operation is performed based on the target operating parameter after feedback adjustment.

[0196] Optionally, the program further includes instructions for executing the following steps:

[0197] Determining a second gas mass ratio value of the second biomass gas by the high temperature circulation separator;

[0198] determining a target separation efficiency according to the first gas mass ratio value and the second gas mass ratio value;

[0199] In terms of sending the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, the program includes instructions for executing the following steps:

[0200] Determining a reference return material operating parameter corresponding to the first gas mass ratio value;

[0201] determining a second feedback adjustment parameter corresponding to the target separation efficiency;

[0202] Feedback-adjust the reference material recycling working parameter according to the second feedback adjustment parameter to obtain a target material recycling working parameter;

[0203] The material return device is controlled to work according to the target material return working parameter to transport the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier.

[0204] It can be seen that the electronic device described in the embodiment of the present application is applied to a biomass high-speed circulating fluidized bed gasification system, which includes: a feeder, a circulating fluidized bed gasifier, a high-temperature circulating separator, a blower and a return feeder; the circulating fluidized bed gasifier has a dense phase zone at the lower part of the furnace, and combustion and gasification reactions occur in the dense phase zone; wherein the feeder is used to obtain target attribute information of the target biomass, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at every preset time interval; the target biomass is a crushed biomass raw material; the blower is used to determine target working parameters corresponding to the target attribute information, and work based on the target working parameters to feed air into the circulating fluidized bed gasifier; the circulating fluidized bed gasifier is used to produce a chemical reaction between the target biomass and the air in the dense phase zone within a preset temperature range to obtain a first biomass gas; The high-temperature circulating separator is used to separate the first biomass gas from solid to obtain the second biomass gas and solid matter; the second biomass gas is a combustible gas; the return feeder is used to send the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier. First, based on the characteristics of the biomass, biomass can be provided to the circulating fluidized bed gasifier, which helps to ensure the efficiency of subsequent chemical reactions and improve the production efficiency of biomass gas. Second, based on the characteristics of the biomass, corresponding air transportation can be carried out, thereby ensuring the efficiency of subsequent chemical reactions and helping to improve the production efficiency of biomass gas. Third, it can ensure that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas. Fourth, the high-temperature circulating separator separates the first biomass gas from solid to obtain the second biomass gas and solid matter. The second biomass gas is a combustible gas. In this way, the purity of the biomass gas can be guaranteed, and the purity of the energy can be guaranteed. The high-temperature circulating separator may include a gasifier cyclone separator. Fifth, the return device sends solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, thereby ensuring that the circulating fluidized bed gasifier is within a preset temperature range, and further ensuring that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas, and further, the utilization efficiency of biomass energy can be improved.

[0205] Among them, the electronic device may include a controller, a processor, a control platform, a server, etc., which is not limited here.

[0206] Figure 4It is a functional unit composition block diagram of a biomass high-speed circulating fluidized bed gasification device 400 involved in an embodiment of the present application, which is applied to a biomass high-speed circulating fluidized bed gasification system, wherein the system comprises: a feeder, a circulating fluidized bed gasifier, a high-temperature circulating separator, a blower and a recycler; the circulating fluidized bed gasifier has a dense phase zone at the lower part of the furnace, and combustion and gasification reactions both occur in the dense phase zone; the biomass high-speed circulating fluidized bed gasification device 400 comprises: a feeding unit 401, an air supply unit 402, a gasification unit 403, a separation unit 404 and a recycler unit 405, wherein:

[0207] The feeding unit 401 is used to obtain target attribute information of target biomass through the feeder, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at the preset time interval; the target biomass is a crushed biomass raw material;

[0208] The air supply unit 402 is used to determine the target operating parameters corresponding to the target attribute information through the blower, and work based on the target operating parameters to supply air to the circulating fluidized bed gasifier;

[0209] The gasification unit 403 is used to generate a chemical reaction between the target biomass and the air in the dense phase region within a preset temperature range through the circulating fluidized bed gasifier to obtain a first biomass gas;

[0210] The separation unit 404 is used to separate the first biomass gas from solids through the high-temperature circulation separator to obtain a second biomass gas and solid matter; the second biomass gas is a combustible gas;

[0211] The material return unit 405 is used to send the solid matter from the lower part of the furnace to the dense phase zone through the material return device to control the bed temperature of the circulating fluidized bed gasifier.

[0212] Optionally, in determining the target operating parameter related to the target attribute information, the air supply unit 402 is specifically used to:

[0213] Determining reference operating parameters corresponding to the target attribute information;

[0214] Obtaining target environmental parameters of the circulating fluidized bed gasifier;

[0215] Determining a target adjustment parameter corresponding to the target environmental parameter;

[0216] determining a target air property parameter corresponding to the air;

[0217] Determining a target fine-tuning parameter corresponding to the target air property parameter;

[0218] The reference operating parameter is adjusted according to the target adjustment parameter and the target fine-tuning parameter to obtain the target operating parameter.

[0219] Optionally, the biomass high-speed circulating fluidized bed gasification device 400 is further specifically used for:

[0220] Determine a reference temperature range corresponding to the target attribute information, the reference temperature range comprising an upper threshold and a lower threshold;

[0221] determining target structural parameters of the circulating fluidized bed gasifier;

[0222] Determining a first optimization parameter corresponding to the target structural parameter;

[0223] Optimizing the upper threshold according to the first optimization parameter to obtain a target upper threshold;

[0224] determining a target purity of the target biomass;

[0225] determining a second optimization parameter corresponding to the target purity;

[0226] Optimizing the lower threshold according to the second optimization parameter to obtain a target lower threshold;

[0227] The preset temperature range is determined according to the target lower threshold and the target upper threshold.

[0228] Optionally, in determining the first optimization parameter corresponding to the target structural parameter, the biomass high-speed circulating fluidized bed gasification device 400 is specifically used for:

[0229] Determining reference optimization parameters corresponding to the target structural parameters;

[0230] Acquire historical optimization parameters of the circulating fluidized bed gasifier to obtain a plurality of historical optimization parameters, each of which corresponds to a historical moment;

[0231] Perform fitting according to the multiple historical optimization parameters and corresponding historical moments to obtain a fitting straight line and a fitting curve;

[0232] Obtaining a target slope corresponding to the fitting straight line;

[0233] Determine the extreme points of the fitting curve to obtain multiple extreme points;

[0234] Determine the absolute value of the difference between adjacent limit values ​​according to the multiple extreme value points to obtain multiple absolute values;

[0235] determining a target mean square error and a target mean of the plurality of absolute values;

[0236] determining a first influencing parameter corresponding to the target slope;

[0237] determining a second influencing parameter corresponding to the target mean;

[0238] Determining a first compensation parameter corresponding to the target mean square error;

[0239] Selecting the maximum and minimum values ​​among the multiple absolute values;

[0240] determining a first degree of deviation between the maximum value and the minimum value;

[0241] determining a second compensation parameter corresponding to the first deviation;

[0242] Compensating the second influencing parameter according to the first compensation parameter and the second compensation parameter to obtain a third influencing parameter;

[0243] The reference optimization parameter is dynamically adjusted according to the first influencing parameter and the third influencing parameter to obtain the first optimization parameter.

[0244] Optionally, the biomass high-speed circulating fluidized bed gasification device 400 is further specifically used for:

[0245] Determining a first gas mass ratio value of the first biomass gas;

[0246] The air supply unit 402 is also specifically used for:

[0247] Determining a second deviation between the first gas mass ratio value and a preset gas mass ratio value;

[0248] determining a first feedback adjustment parameter corresponding to the second deviation;

[0249] Feedback adjustment is performed on the target operating parameter according to the first feedback adjustment parameter to obtain the target operating parameter after feedback adjustment, and operation is performed based on the target operating parameter after feedback adjustment.

[0250] Optionally, the separation unit 404 is specifically used for:

[0251] Determining a second gas mass ratio value of the second biomass gas;

[0252] determining a target separation efficiency according to the first gas mass ratio value and the second gas mass ratio value;

[0253] In terms of conveying the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, the material return unit 405 is specifically used for:

[0254] Determining a reference return material operating parameter corresponding to the first gas mass ratio value;

[0255] determining a second feedback adjustment parameter corresponding to the target separation efficiency;

[0256] Feedback-adjust the reference material recycling working parameter according to the second feedback adjustment parameter to obtain a target material recycling working parameter;

[0257] The material return device is controlled to work according to the target material return working parameter to transport the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier.

[0258] It can be seen that the biomass high-speed circulating fluidized bed gasification device described in the embodiment of the present application comprises: a feeder, a circulating fluidized bed gasifier, a high-temperature circulating separator, a blower and a return feeder; the circulating fluidized bed gasifier has a dense phase zone at the lower part of the furnace, and combustion and gasification reactions both occur in the dense phase zone; wherein the feeder is used to obtain target attribute information of the target biomass, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at preset time intervals; the target biomass is a crushed biomass raw material; the blower is used to determine target working parameters corresponding to the target attribute information, and work based on the target working parameters to supply air to the circulating fluidized bed gasifier; the circulating fluidized bed gasifier is used to produce a chemical reaction between the target biomass and the air in the dense phase zone within a preset temperature range to obtain a first biomass gas; the high-temperature circulating separator , used for separating the first biomass gas from the solid to obtain the second biomass gas and solid matter; the second biomass gas is a combustible gas; the return feeder is used to send the solid matter from the lower part of the furnace to the dense phase area to control the bed temperature of the circulating fluidized bed gasifier. First, based on the characteristics of the biomass, biomass can be provided to the circulating fluidized bed gasifier, which helps to ensure the efficiency of subsequent chemical reactions and improve the production efficiency of biomass gas. Second, based on the characteristics of the biomass, corresponding air transportation can be carried out, thereby ensuring the efficiency of subsequent chemical reactions and helping to improve the production efficiency of biomass gas. Third, it can ensure that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas. Fourth, the high-temperature circulating separator separates the first biomass gas from the solid to obtain the second biomass gas and solid matter. The second biomass gas is a combustible gas. In this way, the purity of the biomass gas can be guaranteed, and the purity of the energy can be guaranteed. The high-temperature circulating separator may include a gasifier cyclone separator. Fifth, the return device sends solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, thereby ensuring that the circulating fluidized bed gasifier is within a preset temperature range, and further ensuring that the target biomass produces chemical reactions within the optimal temperature range, thereby ensuring the production efficiency of biomass gas, and further, the utilization efficiency of biomass energy can be improved.

[0259] It can be understood that the functions of each program module of the biomass high-speed circulating fluidized bed gasification device of this embodiment can be specifically implemented according to the method in the above method embodiment. The specific implementation process can refer to the relevant description of the above method embodiment, which will not be repeated here.

[0260] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute part or all of the steps of any method described in the above method embodiments, and the above computer includes an electronic device.

[0261] The embodiment of the present application also provides a computer program product, the computer program product includes a non-transitory computer-readable storage medium storing a computer program, the computer program is operable to cause a computer to execute some or all of the steps of any method described in the method embodiment. The computer program product may be a software installation package, and the computer includes an electronic device.

[0262] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0263] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0264] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0265] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0266] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0267] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the above-mentioned methods in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0268] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable memory, which may include a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0269] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A biomass high-speed circulating fluidized bed gasification system, characterized in that: The system includes: a feeder, a circulating fluidized bed gasifier, a high-temperature circulating separator, a blower and a return device; the circulating fluidized bed gasifier has a dense phase area at the lower part of the furnace, and combustion and gasification reactions occur in the dense phase area; wherein, The feeder is used to obtain target attribute information of target biomass, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at the preset time interval; the target biomass is a crushed biomass raw material; The blower is used to determine a target operating parameter corresponding to the target attribute information, and to operate based on the target operating parameter to supply air to the circulating fluidized bed gasifier; The circulating fluidized bed gasifier is used to generate a chemical reaction between the target biomass and the air in the dense phase region within a preset temperature range to obtain a first biomass gas; The high temperature circulation separator is used to separate the first biomass gas into gas and solid to obtain the second biomass gas and solid matter; the second biomass gas is a combustible gas; The return device is used to send the solid matter from the lower part of the furnace to the dense phase area to control the bed temperature of the circulating fluidized bed gasifier; Wherein, the circulating fluidized bed gasifier is also specifically used for: Determine a reference temperature range corresponding to the target attribute information, the reference temperature range comprising an upper threshold and a lower threshold; determining target structural parameters of the circulating fluidized bed gasifier; Determining a first optimization parameter corresponding to the target structural parameter; Optimizing the upper threshold according to the first optimization parameter to obtain a target upper threshold; determining a target purity of the target biomass; determining a second optimization parameter corresponding to the target purity; Optimize the lower threshold according to the second optimization parameter to obtain a target lower threshold; Determine the preset temperature range according to the target lower threshold and the target upper threshold; Wherein, in the aspect of determining the first optimization parameter corresponding to the target structural parameter, the circulating fluidized bed gasifier is further specifically used for: Determining reference optimization parameters corresponding to the target structural parameters; Acquire historical optimization parameters of the circulating fluidized bed gasifier to obtain a plurality of historical optimization parameters, each of which corresponds to a historical moment; Perform fitting according to the multiple historical optimization parameters and corresponding historical moments to obtain a fitting straight line and a fitting curve; Obtaining a target slope corresponding to the fitting straight line; Determine the extreme points of the fitting curve to obtain multiple extreme points; Determine the absolute value of the difference between adjacent limit values ​​according to the multiple extreme value points to obtain multiple absolute values; determining a target mean square error and a target mean of the plurality of absolute values; determining a first influencing parameter corresponding to the target slope; determining a second influencing parameter corresponding to the target mean; Determining a first compensation parameter corresponding to the target mean square error; Selecting the maximum and minimum values ​​among the multiple absolute values; determining a first degree of deviation between the maximum value and the minimum value; determining a second compensation parameter corresponding to the first deviation; Compensating the second influencing parameter according to the first compensation parameter and the second compensation parameter to obtain a third influencing parameter; Dynamically adjust the reference optimization parameter according to the first influencing parameter and the third influencing parameter to obtain the first optimization parameter; Wherein, the first biomass gas is also specifically used for: Determining a first gas mass ratio value of the first biomass gas; The blower is also used for: Determining a second deviation between the first gas mass ratio value and a preset gas mass ratio value; determining a first feedback adjustment parameter corresponding to the second deviation; Performing feedback adjustment on the target operating parameter according to the first feedback adjustment parameter to obtain the target operating parameter after feedback adjustment, and performing operation based on the target operating parameter after feedback adjustment; Wherein, the high temperature circulation separator is also specifically used for: Determining a second gas mass ratio value of the second biomass gas; determining a target separation efficiency according to the first gas mass ratio value and the second gas mass ratio value; In terms of conveying the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier, the return device is specifically used for: Determining a reference return material operating parameter corresponding to the first gas mass ratio value; determining a second feedback adjustment parameter corresponding to the target separation efficiency; Feedback-adjust the reference material recycling working parameter according to the second feedback adjustment parameter to obtain a target material recycling working parameter; The material return device is controlled to work according to the target material return working parameter to transport the solid matter from the lower part of the furnace to the dense phase zone to control the bed temperature of the circulating fluidized bed gasifier.

2. The system according to claim 1, characterized in that In terms of determining the target operating parameters related to the target attribute information, the blower is specifically used for: Determining reference operating parameters corresponding to the target attribute information; Obtaining target environmental parameters of the circulating fluidized bed gasifier; Determining a target adjustment parameter corresponding to the target environmental parameter; determining a target air property parameter corresponding to the air; Determining a target fine-tuning parameter corresponding to the target air property parameter; The reference operating parameter is adjusted according to the target adjustment parameter and the target fine-tuning parameter to obtain the target operating parameter.

3. A biomass high-speed circulating fluidized bed gasification method, characterized in that: Applied to the biomass high-speed circulating fluidized bed gasification system as claimed in claim 1 or 2, the method comprises: Obtaining target attribute information of target biomass through the feeder, determining a preset time interval corresponding to the target attribute information, and providing the target biomass to the circulating fluidized bed gasifier at every preset time interval; the target biomass is a crushed biomass raw material; Determining target operating parameters corresponding to the target attribute information by the blower, and operating based on the target operating parameters to supply air to the circulating fluidized bed gasifier; The target biomass and the air are chemically reacted in the dense phase region by the circulating fluidized bed gasifier within a preset temperature range to obtain a first biomass gas; The first biomass gas is separated into gas and solid by the high temperature circulation separator to obtain a second biomass gas and solid matter; the second biomass gas is a combustible gas; The solid matter is sent from the lower part of the furnace to the dense phase zone through the return device to control the bed temperature of the circulating fluidized bed gasifier.

4. A biomass high-speed circulating fluidized bed gasification device, characterized in that: Applied to the biomass high-speed circulating fluidized bed gasification system as claimed in claim 1 or 2, the device comprises: a feeding unit, a gas supply unit, a gasification unit, a separation unit and a return unit, wherein: The feeding unit is used to obtain target attribute information of target biomass through the feeder, determine a preset time interval corresponding to the target attribute information, and provide the target biomass to the circulating fluidized bed gasifier at the preset time interval; the target biomass is a crushed biomass raw material; The air supply unit is used to determine the target operating parameters corresponding to the target attribute information through the blower, and work based on the target operating parameters to supply air to the circulating fluidized bed gasifier; The gasification unit is used to generate a chemical reaction between the target biomass and the air in the dense phase region through the circulating fluidized bed gasifier within a preset temperature range to obtain a first biomass gas; The separation unit is used to separate the first biomass gas from solids through the high-temperature circulation separator to obtain a second biomass gas and solid matter; the second biomass gas is a combustible gas; The material return unit is used to send the solid matter from the lower part of the furnace to the dense phase zone through the material return device to control the bed temperature of the circulating fluidized bed gasifier.

5. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory is used to store one or more programs and is configured to be executed by the processor, wherein the programs include instructions for executing the steps in the method according to claim 3.

6. A computer-readable storage medium, characterized in that: A computer program for electronic data exchange is stored, wherein the computer program causes a computer to execute the method as claimed in claim 3.

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