Coal quality regulation and control method for entrained-flow bed gasification as-fired coal and electronic equipment

Abstract

The invention discloses an entrained-flow bed gasification as-fired coal quality regulation and control method and electronic equipment. The method comprises the following steps: acquiring a plurality of coal quality indexes of to-be-analyzed coal as the coal quality indexes of the to-be-analyzed coal, and acquiring a plurality of coal quality indexes of standard as-fired coal meeting gasification requirements of a gasification furnace as the standard as-fired coal quality indexes; calculating Euclidean distances between the plurality of standard coal quality indexes of as-fired coal and the corresponding coal quality indexes of the coal to be analyzed; and if the Euclidean distance is less than 1, judging that the to-be-analyzed coal directly enters the gasification furnace, otherwise, adjusting the to-be-analyzed coal blending. According to the method, a plurality of coal quality indexes can be compared at the same time, so that the coal quality indexes used for evaluation are more comprehensive, the evaluation on whether the coal as fired is matched or not is more accurate, in addition, the coal as fired is directly compared with the standard coal as fired, and the standard coal as fired meets the gasification requirement of the gasification furnace, so that the coal as fired is more accurate. Therefore, the to-be-analyzed coal of which the Euclidean distance from the standard as-fired coal is less than 1 also meets the gasification requirement of the gasification furnace.

Description

Technical Field

[0001] The present invention relates to the technical field related to coal, and particularly to a method for regulating the quality of coal entering a gasifier in a entrained flow gasification process, an electronic device, a storage medium, and a computer program product. Background Art

[0002] Coal gasification is the leading technology in modern coal chemical industry, and coal quality is the key factor affecting the efficient and stable operation of gasifiers. Different types of gasifiers have different adaptabilities to different coal types. Due to the complexity of coal itself, there are many coal quality indexes involved in the gasification process. How to provide gasification coal raw materials that match the gasifier, meet the personalized coal use needs of different gasifier users, and improve the efficient and clean conversion and comprehensive utilization efficiency of coal is the focus problem existing in the coal chemical industry.

[0003] Chinese Patent Application CN117887491A discloses a method, device, electronic device, and storage medium for regulating the quality of coal for gasification. The method for regulating the quality of coal for gasification is to establish an ash viscosity temperature prediction model based on the ash composition and ash viscosity temperature of the raw coal for gasification. When a new raw coal for gasification is replaced, the ash viscosity temperature of the new gasification coal is calculated through the model, and the temperature difference is made with the ash viscosity temperature of the original gasification coal. If the temperature deviation is less than or equal to the preset deviation threshold, it is determined that the blended coal can directly enter the gasifier; otherwise, the blended coal sample is adjusted to obtain a blended coal sample.

[0004] Chinese Patent Application CN105542820A discloses a method for blending coal for a gasifier. This method uses two or more coal samples with high ash melting points (greater than 1300 °C) for blending, and when the R value (correlation value based on the ash composition) after blending is 150 - 220, it is determined that the coal is suitable for use in the gasifier. The main purpose of its invention is to reduce the ash melting temperature of the raw coal without adding additives, so that coal types with higher ash melting temperatures can also be used as coal for the gasifier.

[0005] Chinese Patent Application CN118421372A discloses a method for blending coal to adjust the adaptability of raw coal for a gasifier using the ash slag of the gasifier. This method is to mix the raw coal with the ash slag of the gasifier, and when 1.0 < W(SiO2 + Al2O3) / W(CaO + Fe2O3 + MgO) < 5.0, 0.70 < W(CaO) / W(Fe2O3) < 2.20, and the ash flow temperature of the blended coal is 1100 - 1450 °C, it is suitable for use as coal for entrained flow gasification.

[0006] However, the existing technology for judging raw coal is based on how to judge whether the gasification raw coal can meet the coal requirements of the gasifier, and all of them are considered from the perspective of coal ash composition, coal ash fusibility, and ash viscosity temperature. Coal ash characteristics are the key to whether the gasifier can operate stably, such as whether slag can be hung and discharged smoothly. In fact, considering from the perspective of coal ash is only a question of whether the gasification raw coal can match the gasifier, and it cannot judge whether it is good or not.

[0007] The operation of the gasifier is directly related to the coal quality characteristics of the gasification raw coal, and different gasifiers have different adaptability to different types of coal. There are many reasons for the change in the coal quality of the gasifier, including the uneven composition of different coal seams and the instability of coal supply in different regions. Unstable gasified coal will not only affect the furnace temperature distribution, heat load distribution, slag mouth pressure difference, etc. in the gasifier, but also affect auxiliary systems such as the coal grinding system and slag water treatment system, which will cause problems such as gasifier efficiency, safety, stability and economy.

[0008] Most of the existing methods for evaluating whether the coal fed into the gasification furnace is compatible with the gasifier are based on whether the coal ash melting characteristics meet the index requirements of the coal fed into the furnace, such as the coal ash melting point, viscosity-temperature characteristic temperature, coal ash acid-base ratio, silicon-aluminum ratio, and other requirements for the oxide content in the coal ash. However, there are several deficiencies in judging the matching of the coal fed into the furnace and the gasifier by the coal ash melting characteristics: 1) The coal ash melting characteristics are only used to judge whether the coal fed into the furnace can ensure the stability of slag hanging and slag discharge in the gasifier, and ensure that there is no risk of slag blocking in the gasifier; 2) The existing coal ash melting characteristics measurement and characterization methods, such as ash melting point, ash composition, viscosity-temperature characteristics, etc., are all the results of laboratory measurements, which are very different from the real coal ash characteristics of industrial gasifiers and can only be used as a reference; 3) There is a lack of judgment on the quality of other properties of the gasification coal, such as the carbon conversion rate, gas production rate, effective syngas content and other gasification properties of the coal fed into the furnace. Summary of the invention

[0009] Based on this, it is necessary to provide a method for controlling the quality of coal entering the gasification furnace, an electronic device, a storage medium and a computer program product for an entrained flow gasification furnace in order to address the technical problem that the existing technology lacks an effective method for evaluating the coal entering the gasification furnace.

[0010] The present invention provides a method for controlling the quality of coal fed into an entrained flow gasification furnace, comprising:

[0011] Acquire multiple coal quality indicators of the coal to be analyzed as coal quality indicators of the coal to be analyzed, and acquire multiple coal quality indicators of standard coal entering the gasifier that meets the gasification requirements of the gasifier as standard coal quality indicators of the standard coal entering the gasifier;

[0012] Calculating the Euclidean distances between a plurality of the standard coal quality indicators of the incoming coal and the corresponding coal quality indicators of the coal to be analyzed;

[0013] If the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier, otherwise the coal blending of the coal to be analyzed is adjusted.

[0014] Furthermore, the calculating of the Euclidean distances between the plurality of standard coal quality indicators of the incoming coal and the corresponding coal quality indicators of the coal to be analyzed includes:

[0015] Perform dimensionless processing on each of the standard coal quality indicators of the furnace to obtain a corresponding dimensionless standard coal quality indicator of the furnace, and perform dimensionless processing on each of the coal quality indicators to be analyzed to obtain a corresponding dimensionless coal quality indicator of the coal to be analyzed;

[0016] The Euclidean distances between the dimensionless standard coal quality indices of the incoming coal and the corresponding dimensionless coal quality indices of the coal to be analyzed are calculated.

[0017] Furthermore, the dimensionless processing is performed on each of the standard coal quality indicators of the furnace to obtain the corresponding dimensionless standard coal quality indicators of the furnace, and the dimensionless processing is performed on each of the coal quality indicators to be analyzed to obtain the corresponding dimensionless coal quality indicators to be analyzed, including:

[0018] Obtain the index range of each coal quality index;

[0019] Based on the index range of each coal quality index, the corresponding standard coal quality index of the furnace is dimensionlessly processed to obtain the corresponding dimensionless standard coal quality index of the furnace, and the corresponding coal quality index to be analyzed is dimensionlessly processed to obtain the corresponding dimensionless coal quality index to be analyzed.

[0020] Further, based on the index range of each coal quality index, the corresponding standard coal quality index of the furnace is dimensionally processed to obtain the corresponding dimensionless standard coal quality index of the furnace, and the corresponding coal quality index of the coal to be analyzed is dimensionally processed to obtain the corresponding dimensionless coal quality index of the coal to be analyzed, including:

[0021] Calculate the dimensionless standard coal quality index corresponding to the i-th standard coal quality index: x i =|(X i -C' i ) / (MaxC i -MinC i )|, where x i is the value of the dimensionless standard coal quality index corresponding to the i-th standard coal quality index, X i is the value of the coal quality index of the i-th standard coal entering the furnace, C' i is the average value of the index range of the i-th coal quality index, MaxC iis the maximum value of the index range of the i-th coal quality index, MinC i is the minimum value of the index range of the i-th coal quality index;

[0022] Calculate the dimensionless coal quality index corresponding to the i-th coal quality index to be analyzed as: y i =|(Y i -C' i ) / (MaxC i -MinC i )|, where y i is the value of the dimensionless coal quality index to be analyzed corresponding to the i-th coal quality index to be analyzed, Y i is the value of the i-th coal quality index to be analyzed.

[0023] Furthermore, the calculating of the Euclidean distances between the dimensionless standard coal quality indexes of the incoming coal and the corresponding dimensionless coal quality indexes of the coal to be analyzed includes:

[0024] The Euclidean distance between the standard coal quality index vector composed of multiple dimensionless standard coal quality index values ​​and the coal quality index vector to be analyzed composed of multiple dimensionless coal quality index values ​​to be analyzed is calculated as:

[0025] Where A is the standard coal quality index vector of the furnace, and its n-dimensional space contains (x1, x2, x3, ..., x i , ..., x n ), where x i is the value of the dimensionless standard coal quality index corresponding to the i-th standard coal quality index, B is the coal quality index vector to be analyzed, and its n-dimensional space contains (y1, y2, y3, ..., y i , ..., y n ), where y i is the value of the dimensionless coal quality index to be analyzed corresponding to the i-th coal quality index to be analyzed, and n is the number of coal quality indicators.

[0026] Furthermore, the adjusting the coal blending of the coal to be analyzed includes:

[0027] Calculate the absolute value of the difference between the value of each dimensionless standard coal quality index of the incoming coal and the value of the corresponding dimensionless coal quality index of the coal to be analyzed;

[0028] Select the dimensionless coal quality index to be analyzed with the largest absolute value of the difference as the dimensionless coal quality index to be analyzed to be adjusted;

[0029] Adjusting the dimensionless coal quality index to be adjusted to be analyzed until the absolute value of the difference between the value of the corresponding dimensionless standard coal quality index of the incoming coal is less than or equal to the difference threshold;

[0030] Recalculating the Euclidean distances between the dimensionless standard coal quality indexes of incoming coal and the corresponding dimensionless coal quality indexes of the coal to be analyzed;

[0031] If the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier and the adjustment is terminated; otherwise, the coal blending of the coal to be analyzed is adjusted again.

[0032] Furthermore, the coal quality index is an index related to the gasification performance and operational safety and stability of the gasifier.

[0033] The present invention provides an electronic device, comprising:

[0034] at least one processor; and,

[0035] a memory communicatively connected to at least one of the processors; wherein,

[0036] The memory stores instructions that can be executed by at least one of the processors, and the instructions are executed by at least one of the processors to enable at least one of the processors to execute the method for controlling the quality of coal entering the entrained flow gasification furnace as described above.

[0037] The present invention provides a storage medium, which stores computer instructions. When a computer executes the computer instructions, it is used to execute all steps of the method for controlling the quality of coal entering the fluidized bed gasification furnace as described above.

[0038] The present invention provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the above-mentioned method for controlling the quality of coal entering a fluidized-flow gasification furnace.

[0039] The present invention compares multiple coal quality indicators of the coal to be analyzed with multiple coal quality indicators of the standard coal entering the furnace through Euclidean distance, so that multiple coal quality indicators can be compared at the same time. Therefore, the coal quality indicators used for evaluation are more comprehensive, and the evaluation of whether the coal entering the furnace is matched is more accurate. In addition, since it is directly compared with the standard coal entering the furnace, and the standard coal entering the furnace itself meets the gasification requirements of the gasifier, the coal to be analyzed whose Euclidean distance with the standard coal entering the furnace is less than 1 will also meet the gasification requirements of the gasifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a working flow chart of a method for controlling the quality of coal entering an entrained flow gasification furnace according to an embodiment of the present invention;

[0041] Figure 2 This is a working flow chart of a method for controlling the quality of coal entering an entrained flow gasification furnace according to another embodiment of the present invention;

[0042] Figure 3 This is a working diagram of a method for controlling the quality of coal entering an entrained flow gasification furnace in accordance with the best embodiment of the present invention;

[0043] Figure 4 The figure is a schematic diagram of the hardware structure of an electronic device of the present invention. DETAILED DESCRIPTION

[0044] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0045] like Figure 1 The figure shows a working flow chart of a method for controlling the quality of coal entering an entrained flow gasification furnace according to an embodiment of the present invention, comprising:

[0046] Step S101, obtaining a plurality of coal quality indices of the coal to be analyzed as coal quality indices of the coal to be analyzed, and obtaining a plurality of coal quality indices of standard coal entering the gasifier that meets the gasification requirements of the gasifier as coal quality indices of the standard coal entering the gasifier;

[0047] Step S102, calculating the Euclidean distances between a plurality of the standard coal quality indices of the incoming coal and the corresponding coal quality indices of the coal to be analyzed;

[0048] Step S103: if the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier, otherwise the coal blending of the coal to be analyzed is adjusted.

[0049] Specifically, the present invention can be applied to electronic devices with processing capabilities, such as computers.

[0050] First, step S101 is executed to obtain a plurality of coal quality indices of the coal to be analyzed as coal quality indices of the coal to be analyzed, and a plurality of coal quality indices of standard coal entering the gasifier that meets the gasification requirements of the gasifier are obtained as coal quality indices of the standard coal entering the gasifier.

[0051] Specifically, the coal to be analyzed is the coal that is regulated and analyzed by the method for regulating the quality of coal entering the entrained flow gasification furnace of the present invention to determine whether it can enter the gasifier. The coal to be analyzed can be mixed coal. The standard coal entering the furnace is the coal entering the furnace that is predetermined to meet the gasification requirements of the gasifier.

[0052] In some embodiments, the gasification requirements include gasifier gasification characteristic requirements and gasification performance characteristic requirements.

[0053] Among them, the gasification characteristics of the gasifier include at least the temperature change of the gasifier wall, the slag discharge situation, the equipment stability and other related characteristics related to the safety and stability of the gasifier operation process;

[0054] The gasification performance characteristics include at least carbon conversion rate, cold gas efficiency, gas production rate, synthesis gas content, specific coal consumption, and specific oxygen consumption.

[0055] First, the coal quality index needs to be determined, and then a plurality of coal quality indexes of the coal to be analyzed are obtained as the coal quality indexes of the coal to be analyzed, and a plurality of coal quality indexes of the standard coal entering the furnace are obtained as the coal quality indexes of the standard coal entering the furnace.

[0056] In one of the embodiments, the coal quality index is an index related to the gasification performance and operational safety and stability of the gasifier.

[0057] Specifically, coal quality indicators are key coal quality indicators related to the gasification performance and operational safety and stability of the gasifier.

[0058] Coal quality indicators include at least ash content, total moisture or internal water, volatile matter, calorific value, ash melting point, grindability index and ash oxide composition.

[0059] Then, step S102 is executed to calculate the Euclidean distances between a plurality of the standard coal quality indicators of the incoming coal and the corresponding coal quality indicators of the to-be-analyzed coal.

[0060] Specifically, the plurality of standard coal quality indicators are used as standard coal quality indicator vectors, and the plurality of coal quality indicators to be analyzed are used as coal quality indicator vectors to be analyzed, and the elements with the same sequence number in the two vectors represent the same coal quality indicator. Then the Euclidean distance (Euclidean distance) of the two vectors is calculated.

[0061] Finally, step S103 is executed. If the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier, otherwise the coal blending of the coal to be analyzed is adjusted.

[0062] When the Euclidean distance is less than 1, it means that the two vectors are similar, that is, the coal quality index of the coal to be analyzed is similar to the coal quality index of the standard coal entering the furnace. Therefore, it is judged that the coal to be analyzed can directly enter the gasifier, otherwise the coal blending of the coal to be analyzed needs to be adjusted.

[0063] The present invention compares multiple coal quality indicators of the coal to be analyzed with multiple coal quality indicators of the standard coal entering the furnace through Euclidean distance, so that multiple coal quality indicators can be compared at the same time. Therefore, the coal quality indicators used for evaluation are more comprehensive, and the evaluation of whether the coal entering the furnace is matched is more accurate. In addition, since it is directly compared with the standard coal entering the furnace, and the standard coal entering the furnace itself meets the gasification requirements of the gasifier, the coal to be analyzed whose Euclidean distance with the standard coal entering the furnace is less than 1 will also meet the gasification requirements of the gasifier.

[0064] like Figure 2 The figure shows a working flow chart of a method for controlling the quality of coal entering an entrained flow gasification furnace in another embodiment of the present invention, comprising:

[0065] Step S201, obtaining a plurality of coal quality indices of the coal to be analyzed as coal quality indices of the coal to be analyzed, and obtaining a plurality of coal quality indices of standard coal entering the gasifier that meets the gasification requirements of the gasifier as coal quality indices of the standard coal entering the gasifier.

[0066] In one of the embodiments, the coal quality index is an index related to the gasification performance and operational safety and stability of the gasifier.

[0067] Step S202, dimensionless processing is performed on each of the standard coal quality indicators entering the furnace to obtain the corresponding dimensionless standard coal quality indicators entering the furnace, and dimensionless processing is performed on each of the coal quality indicators to be analyzed to obtain the corresponding dimensionless coal quality indicators to be analyzed.

[0068] In one embodiment, the dimensionless processing is performed on each of the standard coal quality indicators of the furnace to obtain the corresponding dimensionless standard coal quality indicators of the furnace, and the dimensionless processing is performed on each of the coal quality indicators to be analyzed to obtain the corresponding dimensionless coal quality indicators to be analyzed, including:

[0069] Obtain the index range of each coal quality index;

[0070] Based on the index range of each coal quality index, the corresponding standard coal quality index of the furnace is dimensionlessly processed to obtain the corresponding dimensionless standard coal quality index of the furnace, and the corresponding coal quality index to be analyzed is dimensionlessly processed to obtain the corresponding dimensionless coal quality index to be analyzed.

[0071] In one embodiment, based on the index range of each coal quality index, the corresponding standard coal quality index of the furnace is dimensionally processed to obtain the corresponding dimensionless standard coal quality index of the furnace, and the corresponding coal quality index of the coal to be analyzed is dimensionally processed to obtain the corresponding dimensionless coal quality index of the coal to be analyzed, including:

[0072] Calculate the dimensionless standard coal quality index corresponding to the i-th standard coal quality index: x i =|(X i -C' i ) / (MaxC i -MinC i )|, where x i is the value of the dimensionless standard coal quality index corresponding to the i-th standard coal quality index, X i is the value of the coal quality index of the i-th standard coal entering the furnace, C' i is the average value of the index range of the i-th coal quality index, MaxC i is the maximum value of the index range of the i-th coal quality index, MinC iis the minimum value of the index range of the i-th coal quality index;

[0073] Calculate the dimensionless coal quality index corresponding to the i-th coal quality index to be analyzed as: y i =|(Y i -C' i ) / (MaxC i -MinC i )|, where y i is the value of the dimensionless coal quality index to be analyzed corresponding to the i-th coal quality index to be analyzed, Y i is the value of the i-th coal quality index to be analyzed.

[0074] Step S203, calculating the Euclidean distances between a plurality of dimensionless standard coal quality indices of incoming coal and corresponding dimensionless coal quality indices of the coal to be analyzed.

[0075] In one embodiment, the calculating of the Euclidean distances between the dimensionless standard coal quality indexes of the incoming coal and the corresponding dimensionless coal quality indexes of the coal to be analyzed comprises:

[0076] The Euclidean distance between the standard coal quality index vector composed of multiple dimensionless standard coal quality index values ​​and the coal quality index vector to be analyzed composed of multiple dimensionless coal quality index values ​​to be analyzed is calculated as:

[0077] Where A is the standard coal quality index vector of the furnace, and its n-dimensional space contains (x1, x2, x3, ..., x i , ..., x n ), where x i is the value of the dimensionless standard coal quality index corresponding to the i-th standard coal quality index, B is the coal quality index vector to be analyzed, and its n-dimensional space contains (y1, y2, y3, ..., y i , ..., y n ), where y i is the value of the dimensionless coal quality index to be analyzed corresponding to the i-th coal quality index to be analyzed, and n is the number of coal quality indicators.

[0078] Step S204: if the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier, otherwise the coal blending of the coal to be analyzed is adjusted.

[0079] In one embodiment, adjusting the coal blending of the coal to be analyzed includes:

[0080] Calculate the absolute value of the difference between the value of each dimensionless standard coal quality index of the incoming coal and the value of the corresponding dimensionless coal quality index of the coal to be analyzed;

[0081] Select the dimensionless coal quality index to be analyzed with the largest absolute value of the difference as the dimensionless coal quality index to be analyzed to be adjusted;

[0082] Adjusting the dimensionless coal quality index to be adjusted to be analyzed until the absolute value of the difference between the value of the corresponding dimensionless standard coal quality index of the incoming coal is less than or equal to the difference threshold;

[0083] Recalculating the Euclidean distances between the dimensionless standard coal quality indexes of incoming coal and the corresponding dimensionless coal quality indexes of the coal to be analyzed;

[0084] If the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier and the adjustment is terminated; otherwise, the coal blending of the coal to be analyzed is adjusted again.

[0085] Specifically, firstly, step S201 is executed to obtain a plurality of coal quality indices of the coal to be analyzed as coal quality indices of the coal to be analyzed, and a plurality of coal quality indices of standard coal entering the gasifier that meets the gasification requirements of the gasifier are obtained as coal quality indices of the standard coal entering the gasifier.

[0086] In some embodiments, the gasification requirements include gasifier gasification characteristic requirements and gasification performance characteristic requirements.

[0087] Among them, the gasification characteristics of the gasifier are the operating characteristics of the gasifier after using the coal fed into the furnace, including at least the changes in the temperature of the gasifier wall, slag discharge conditions, equipment stability and other related characteristics involving the safety and stability of the gasifier operation process; the gasification performance characteristics are the gasification process characteristics after using the coal fed into the furnace, including at least carbon conversion rate, cold gas efficiency, gas production rate, synthesis gas content, specific coal consumption, and specific oxygen consumption.

[0088] First, the coal quality index needs to be determined, and then a plurality of coal quality indexes of the coal to be analyzed are obtained as the coal quality indexes of the coal to be analyzed, and a plurality of coal quality indexes of the standard coal entering the furnace are obtained as the coal quality indexes of the standard coal entering the furnace.

[0089] In one of the embodiments, the coal quality index is an index related to the gasification performance and operational safety and stability of the gasifier.

[0090] Specifically, coal quality indicators are key coal quality indicators related to the gasification performance and operational safety and stability of the gasifier.

[0091] Coal quality indicators include at least ash content, total moisture or internal water, volatile matter, calorific value, ash melting point, grindability index and ash oxide composition.

[0092] Then, step S202 is executed to perform dimensionless processing on each of the standard coal quality indicators entering the furnace to obtain the corresponding dimensionless standard coal quality indicators entering the furnace, and to perform dimensionless processing on each of the coal quality indicators to be analyzed to obtain the corresponding dimensionless coal quality indicators to be analyzed.

[0093] In one embodiment, the dimensionless processing is performed on each of the standard coal quality indicators of the furnace to obtain the corresponding dimensionless standard coal quality indicators of the furnace, and the dimensionless processing is performed on each of the coal quality indicators to be analyzed to obtain the corresponding dimensionless coal quality indicators to be analyzed, including:

[0094] Obtain the index range of each coal quality index;

[0095] Based on the index range of each coal quality index, the corresponding standard coal quality index of the furnace is dimensionlessly processed to obtain the corresponding dimensionless standard coal quality index of the furnace, and the corresponding coal quality index to be analyzed is dimensionlessly processed to obtain the corresponding dimensionless coal quality index to be analyzed.

[0096] Specifically, each index range refers to the allowable fluctuation range of the coal quality index of the gasifier for the coal fed into the furnace.

[0097] Then, when the quality of the gasified coal changes, the original gasified coal is used as the standard coal fed into the furnace, and the changed gasified coal is used as the coal to be analyzed. The coal quality indicators of the standard coal fed into the furnace and the coal to be analyzed are dimensionless. The coal to be analyzed can be mixed coal, which is a mixture of two or more carbon-containing raw materials mixed in a certain proportion.

[0098] In one embodiment, based on the index range of each coal quality index, the corresponding standard coal quality index of the furnace is dimensionally processed to obtain the corresponding dimensionless standard coal quality index of the furnace, and the corresponding coal quality index of the coal to be analyzed is dimensionally processed to obtain the corresponding dimensionless coal quality index of the coal to be analyzed, including:

[0099] Calculate the dimensionless standard coal quality index corresponding to the i-th standard coal quality index: x i =|(X i -C' i ) / (MaxC i -MinC i )|, where x i is the value of the dimensionless standard coal quality index corresponding to the i-th standard coal quality index, X i is the value of the coal quality index of the i-th standard coal entering the furnace, C' i is the average value of the index range of the i-th coal quality index, MaxC i is the maximum value of the index range of the i-th coal quality index, MinC i is the minimum value of the index range of the i-th coal quality index;

[0100] Calculate the dimensionless coal quality index corresponding to the i-th coal quality index to be analyzed as: y i =|(Y i -C' i ) / (MaxC i -MinC i )|, where y i is the value of the dimensionless coal quality index to be analyzed corresponding to the i-th coal quality index to be analyzed, Y i is the value of the i-th coal quality index to be analyzed.

[0101] This embodiment provides a specific dimensionless processing formula, through which the characteristics of the two types of coal are made closer and more in line with the requirements.

[0102] Then, step S203 is executed to calculate the Euclidean distances between a plurality of dimensionless standard coal quality indices of incoming coal and the corresponding dimensionless coal quality indices of the coal to be analyzed.

[0103] In one embodiment, the calculating of the Euclidean distances between the dimensionless standard coal quality indexes of the incoming coal and the corresponding dimensionless coal quality indexes of the coal to be analyzed comprises:

[0104] The Euclidean distance between the standard coal quality index vector composed of multiple dimensionless standard coal quality index values ​​and the coal quality index vector to be analyzed composed of multiple dimensionless coal quality index values ​​to be analyzed is calculated as:

[0105] A is the standard coal quality index vector of the furnace, and its n-dimensional space contains (x1, x 2， x3,……,x i , ..., x n ), where x i is the value of the dimensionless standard coal quality index corresponding to the i-th standard coal quality index, B is the coal quality index vector to be analyzed, and its n-dimensional space contains (y1, y2, y3, ..., y i , ..., y n ), where y i is the value of the dimensionless coal quality index to be analyzed corresponding to the i-th coal quality index to be analyzed, and n is the number of coal quality indicators.

[0106] Specifically, the values ​​of multiple dimensionless standard coal quality indicators entering the furnace are combined into a standard coal quality indicator vector, and the values ​​of multiple dimensionless coal quality indicators to be analyzed are combined into a coal quality indicator vector to be analyzed. Then, the Euclidean distance between the standard coal quality indicator vector entering the furnace and the coal quality indicator vector to be analyzed is calculated as follows:

[0107] Where A is the standard coal quality index vector of the furnace, and its n-dimensional space contains (x1, x2, x3, ..., x i , ..., x n ), where x i is the dimensionless value of the standard coal quality index corresponding to the i-th standard coal quality index, including at least the dimensionless processing values ​​of ash content, total moisture or internal water, volatile matter, calorific value, ash melting point, grindability index and ash oxide composition, B is the coal quality index vector to be analyzed, and its n-dimensional space contains (y 1， y2,y3,……,y i , ..., y n ), where y i is the dimensionless value of the coal quality index to be analyzed corresponding to the i-th coal quality index to be analyzed, including at least the dimensionless values ​​of ash content, total moisture or internal water, volatile matter, calorific value, ash melting point, grindability index and coal ash oxide composition, and n is the number of coal quality indexes. Among them, the standard coal quality index and the coal quality index to be analyzed with the same serial number are the same coal quality index, which are the coal quality indexes in the standard coal and the coal to be analyzed respectively.

[0108] This embodiment provides a specific method for calculating the Euclidean distance between the coal quality index vector of the standard incoming coal and the coal quality index vector of the coal to be analyzed.

[0109] Finally, step S204 is executed. If the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier, otherwise the coal blending of the coal to be analyzed is adjusted.

[0110] Specifically, when the Euclidean distance between the incoming coal and the mixed coal is less than 1.0, it is determined that the mixed coal can directly enter the gasifier, otherwise the mixed coal sample is adjusted to obtain a blended coal sample.

[0111] In one embodiment, adjusting the coal blending of the coal to be analyzed includes:

[0112] Calculate the absolute value of the difference between the value of each dimensionless standard coal quality index of the incoming coal and the value of the corresponding dimensionless coal quality index of the coal to be analyzed;

[0113] Select the dimensionless coal quality index to be analyzed with the largest absolute value of the difference as the dimensionless coal quality index to be analyzed to be adjusted;

[0114] Adjusting the dimensionless coal quality index to be adjusted to be analyzed until the absolute value of the difference between the value of the corresponding dimensionless standard coal quality index of the incoming coal is less than or equal to the difference threshold;

[0115] Recalculating the Euclidean distances between the dimensionless standard coal quality indexes of incoming coal and the corresponding dimensionless coal quality indexes of the coal to be analyzed;

[0116] If the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier and the adjustment is terminated; otherwise, the coal blending of the coal to be analyzed is adjusted again.

[0117] Specifically, the coal quality control method can be based on x i -y i That is, when the absolute value is too large, it indicates that the coal quality index has a large deviation, and it can be adjusted appropriately until the Euclidean distance is less than 1.0.

[0118] This embodiment uses multiple coal quality indexes to form a vector, and uses multi-dimensional Euclidean distance for evaluation. In addition to the coal ash melting characteristics, the coal quality indexes involved in the furnace also include other coal quality indicators related to gasification, such as ash content, calorific value, moisture, volatile matter, etc. The coal quality indexes used for evaluation are more comprehensive, and the evaluation of whether the coal entering the furnace is matched is more accurate. Because there are many types of oxides in the coal ash composition and the content of each oxide is also relatively complex, the existing technology uses oxides as correlation factors to predict the melting point and viscosity-temperature characteristic temperature of coal ash, and the expected accuracy is limited. This embodiment uses a dimensionless statistical cluster analysis method to make the characteristics of the two coal types closer and more in line with the requirements.

[0119] like Figure 3 The figure shows a working flow chart of a method for controlling the quality of coal entering a gasification furnace in an entrained flow gasification furnace in a preferred embodiment of the present invention, comprising:

[0120] Step S301, obtaining key coal quality indicators and indicator ranges of the gasifier;

[0121] Step S302, obtaining coal quality characteristics of the coal entering the furnace, gasification characteristics of the gasifier, and gasification performance characteristics;

[0122] Step S303, converting the coal quality index into dimensionless;

[0123] Step S304, calculating the n-dimensional space Euclidean distance between the mixed coal and the coal fed into the furnace;

[0124] Step S305, judging the Euclidean distance, when the Euclidean distance ≤ 1.0, the mixed coal can directly enter the gasifier, otherwise when the Euclidean distance > 1.0, adjusting the blending of the mixed coal until the Euclidean distance ≤ 1.0.

[0125] Specifically, the method includes: first, obtaining key coal quality indicators and indicator ranges related to the gasification performance and operation safety and stability of the gasifier, and obtaining the coal quality characteristics of the gasified coal with good operation performance and stability of the gasifier; secondly, dimensionlessly processing the mixed coal quality data, and calculating the n-dimensional space Euclidean distance between the mixed coal and the original gasified coal. When the Euclidean distance is less than 1.0, it is judged that the mixed coal can directly enter the gasifier, otherwise the mixed coal blending is adjusted.

[0126] Specifically, the key coal quality indicators and indicator ranges related to the gasification performance and operational safety and stability of the gasifier are first obtained, wherein the key coal quality indicators related to the gasification performance and operational safety and stability of the gasifier include at least ash content, total moisture or internal water, volatile matter, calorific value, ash melting point, grindability index and ash oxide composition, and each indicator range refers to the fluctuation range allowed by the gasifier for the coal quality indicators of the coal entering the furnace.

[0127] Secondly, the coal quality characteristics of the coal entering the furnace, the gasification characteristics of the gasifier and the gasification performance characteristics are obtained. The coal quality characteristics of the coal entering the furnace at least include ash content, total moisture or internal water, volatile matter, calorific value, ash melting point, grindability index and ash oxide composition; the gasification characteristics of the gasifier are the operating characteristics of the gasifier after using the coal entering the furnace, at least including the temperature changes of the gasifier wall, slag discharge conditions, equipment stability and other related characteristics related to the safety and stability of the gasifier operation process; the gasification performance characteristics are the gasification process characteristics after using the coal entering the furnace, at least including carbon conversion rate, cold gas efficiency, gas production rate, synthesis gas content, specific coal consumption, and specific oxygen consumption.

[0128] When the quality of gasified coal changes, the quality indicators of the coal entering the furnace and the mixed coal are dimensionlessly processed. The mixed coal is a mixture of two or more carbon-containing raw materials mixed in a certain proportion.

[0129] The dimensionless processing formula is: i =|(C i -C' i ) / (MaxC i -MinC i )|, where C i is the coal quality index, MaxC i MinC is the maximum value of the coal quality index range. i is the minimum value of the coal quality index range, C' i is the average value of the coal quality index range, x i is the value after dimensionless processing.

[0130] Finally, the Euclidean distance in n-dimensional space between the mixed coal and the coal fed into the furnace is calculated.

[0131] Among them, the Euclidean distance in n-dimensional space is A is the coal fed into the furnace, and its n-dimensional space contains A(x1, x2, x3, ..., x n ), B is mixed coal, and its n-dimensional space contains B(y1, y2, y3, ..., y n );

[0132] x1, x2, x3, ..., x nis the dimensionless coal quality index of the coal entering the furnace, including at least the dimensionless processed values ​​of ash content, total moisture or internal water, volatile matter, calorific value, ash melting point, grindability index and ash oxide composition; similarly, y1, y2, y3, ..., y n It is the dimensionless coal quality index of mixed coal, including at least the dimensionless processed values ​​of ash content, total moisture or internal water, volatile matter, calorific value, ash melting point, grindability index and ash oxide composition.

[0133] When the Euclidean distance between the incoming coal and the mixed coal is less than 1.0, it is determined that the mixed coal can directly enter the gasifier, otherwise the mixed coal sample is adjusted to obtain a blended coal sample;

[0134] Among them, the coal quality control method can be controlled according to the dimensionless value of the coal quality index. For example, when the value is greater than 1 or less than 0, it indicates that the coal quality index has a large deviation and can be adjusted appropriately until the Euclidean distance is less than 1.0.

[0135] Example

[0136] 1. The key indicators and indicator ranges of a gasifier are as follows:

[0137] Serial number project unit Indicator range 1 <![CDATA[Ash content (A ad )]]> ％ [8,18] 2 Ash Fusibility (FT) ℃ [1150,1390] 3 <![CDATA[Silica-alumina ratio (SiO2 / Al2O3) in ash]]> - [1.7,2.8] 4 <![CDATA[Total Sulfur (S t,ad )]]> ％ [0.1,0.7] 5 CaO in ash ％ [10,22] 6 <![CDATA[Lower calorific value (Q net.v.ar )]]> kcal / kg [5300,6000] 7 <![CDATA[Total moisture (M t )]]> ％ [6,16] 8 <![CDATA[Volatile matter V ad > ％ [25,37] 9 <![CDATA[Fe2O3 in ash]]> ％ [5,15] 10 <![CDATA[Na2O + K2O in ash]]> ％ [1.0,3.5]

[0138] 2. The coal quality characteristics, key gasification index characteristics and gasification performance characteristics of the gasifier are as follows:

[0139] (1) Coal quality characteristics of the gasifier

[0140]

[0141]

[0142] (2) Key index characteristics of gasification

[0143] Serial number project unit index 1 <![CDATA[Ash content (A ad )]]> ％ 9.80 2 Ash Fusibility (FT) ℃ 1260 3 <![CDATA[Silica-alumina ratio (SiO2 / Al2O3) in ash]]> - 2.52 4 <![CDATA[Total Sulfur (S t,ad )]]> ％ 0.44 5 CaO in ash ％ 12.09 6 <![CDATA[Lower calorific value (Q net.v.ar )]]> kcal / kg 5600 7 <![CDATA[Total moisture (M t )]]> ％ 15.19 8 <![CDATA[Volatile matter V ad > ％ 30.37 9 <![CDATA[Fe2O3 in ash]]> ％ 6.68 10 <![CDATA[Na2O + K2O in ash]]> ％ 2.57

[0144] (3) Gasification performance characteristics

[0145] Gasification performance index unit Numeric Carbon conversion rate ％ 98.2 Cold gas efficiency ％ 81.6 Effective gas content ％ 89.89 Specific oxygen consumption <![CDATA[kg / kNm 3 (CO+H2)]]> 301 Specific coal consumption <![CDATA[Nm 3 / kNm 3 (CO+H2)]]> 534

[0146] 3. Characteristics of new gasified coal quality

[0147]

[0148]

[0149] 4. Euclidean distance results calculated after dimensionless coal quality indicators

[0150]

[0151] The gasification performance of qualified new coal type 2 after being fed into the gasifier is as follows:

[0152]

[0153] 5. Coal quality control methods

[0154] For the new coal type 1, by calculating the dimensionless value of the coal type index, it can be seen that there are the following deviations:

[0155]

[0156] From the above deviations, it can be seen that the flow temperature of this type of coal is too high due to the low CaO content in the ash, causing the two indicators to deviate from the indicators of the coal entering the furnace. This can be adjusted by adding limestone additives.

[0157] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0158] like Figure 4 The figure shows a hardware structure diagram of an electronic device of the present invention, including:

[0159] at least one processor 401; and,

[0160] A memory 402 is communicatively connected to at least one of the processors 401; wherein,

[0161] The memory 402 stores instructions that can be executed by at least one of the processors, and the instructions are executed by at least one of the processors to enable at least one of the processors to execute the method for controlling the quality of coal entering the entrained flow gasification furnace as described above.

[0162] Figure 4 A processor 401 is taken as an example.

[0163] The electronic device may further include: an input device 403 and a display device 404 .

[0164] The processor 401, the memory 402, the input device 403 and the display device 404 may be connected via a bus or other means, and the figure takes the connection via a bus as an example.

[0165] The memory 402 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the method for controlling the quality of coal entering the entrained flow gasification furnace in the embodiment of the present application, for example, Figure 1 , Figure 2 , Figure 3The processor 401 executes various functional applications and data processing by running the non-volatile software programs, instructions and modules stored in the memory 402, that is, the method for controlling the quality of coal entering the entrained flow gasification furnace in the above embodiment is implemented.

[0166] The memory 402 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required by at least one function; the data storage area may store data created according to the use of the method for controlling the quality of coal entering the entrained flow gasification furnace, etc. In addition, the memory 402 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 402 may optionally include a memory remotely arranged relative to the processor 401, and these remote memories may be connected to a device for executing the method for controlling the quality of coal entering the entrained flow gasification furnace via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0167] The input device 403 can receive user clicks and generate signal inputs related to user settings and function control of the method for controlling the quality of coal entering the entrained flow gasification furnace. The display device 404 can include display devices such as a display screen.

[0168] The one or more modules are stored in the memory 402, and when being executed by the one or more processors 401, the method for controlling the quality of coal entering the entrained flow gasification furnace in any of the above method embodiments is executed.

[0169] The present invention compares multiple coal quality indicators of the coal to be analyzed with multiple coal quality indicators of the standard coal entering the furnace through Euclidean distance, so that multiple coal quality indicators can be compared at the same time. Therefore, the coal quality indicators used for evaluation are more comprehensive, and the evaluation of whether the coal entering the furnace is matched is more accurate. In addition, since it is directly compared with the standard coal entering the furnace, and the standard coal entering the furnace itself meets the gasification requirements of the gasifier, the coal to be analyzed whose Euclidean distance with the standard coal entering the furnace is less than 1 will also meet the gasification requirements of the gasifier.

[0170] An embodiment of the present invention provides a storage medium, which stores computer instructions. When a computer executes the computer instructions, it is used to execute all steps of the method for controlling the quality of coal entering the entrained flow gasification furnace as described above.

[0171] In the context of the present disclosure, a storage medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. The storage medium may be a machine-readable signal medium or a machine-readable storage medium. Alternatively, the storage medium may be a non-temporary computer-readable storage medium, for example, a non-temporary computer-readable storage medium may be a ROM, a random access memory (Random Access Memory, RAM), a compact disc read-only memory (Compact Disc ROM, CD-ROM), a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0172] An embodiment of the present invention provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the above-mentioned method for controlling the quality of coal entering a gasification furnace during fluidized-flow gasification.

[0173] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for controlling the quality of coal entering an entrained-flow gasification furnace, characterized in that: include: Acquire multiple coal quality indicators of the coal to be analyzed as coal quality indicators of the coal to be analyzed, and acquire multiple coal quality indicators of standard coal entering the gasifier that meets the gasification requirements of the gasifier as standard coal quality indicators of the standard coal entering the gasifier; Calculating the Euclidean distances between a plurality of the standard coal quality indicators of the incoming coal and the corresponding coal quality indicators of the coal to be analyzed; If the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier, otherwise the coal blending of the coal to be analyzed is adjusted.

2. The method for controlling the quality of coal entering the entrained flow gasification furnace according to claim 1, characterized in that: The calculating of the Euclidean distances between the plurality of standard coal quality indicators of the incoming coal and the corresponding coal quality indicators of the coal to be analyzed comprises: Perform dimensionless processing on each of the standard coal quality indicators of the furnace to obtain a corresponding dimensionless standard coal quality indicator of the furnace, and perform dimensionless processing on each of the coal quality indicators to be analyzed to obtain a corresponding dimensionless coal quality indicator of the coal to be analyzed; The Euclidean distances between the dimensionless standard coal quality indices of the incoming coal and the corresponding dimensionless coal quality indices of the coal to be analyzed are calculated.

3. The method for controlling the quality of coal entering the entrained flow gasification furnace according to claim 2, characterized in that: The step of performing dimensionless processing on each of the standard coal quality indicators of the incoming coal to obtain the corresponding dimensionless standard coal quality indicators of the incoming coal, and performing dimensionless processing on each of the coal quality indicators to be analyzed to obtain the corresponding dimensionless coal quality indicators to be analyzed includes: Obtain the index range of each coal quality index; Based on the index range of each coal quality index, the corresponding standard coal quality index of the furnace is dimensionlessly processed to obtain the corresponding dimensionless standard coal quality index of the furnace, and the corresponding coal quality index to be analyzed is dimensionlessly processed to obtain the corresponding dimensionless coal quality index to be analyzed.

4. The method for controlling the quality of coal fed into an entrained flow gasification furnace according to claim 3, characterized in that: Based on the index range of each coal quality index, the corresponding standard coal quality index of the furnace is dimensionally processed to obtain the corresponding dimensionless standard coal quality index of the furnace, and the corresponding coal quality index of the coal to be analyzed is dimensionally processed to obtain the corresponding dimensionless coal quality index of the coal to be analyzed, including: Calculate the dimensionless standard coal quality index corresponding to the i-th standard coal quality index: x i =|(X i -C' i ) / (MaxC i -MinC i )|, where x i is the value of the dimensionless standard coal quality index corresponding to the i-th standard coal quality index, X i is the value of the coal quality index of the i-th standard coal entering the furnace, C' i is the average value of the index range of the i-th coal quality index, MaxC i is the maximum value of the index range of the i-th coal quality index, MinC i is the minimum value of the index range of the i-th coal quality index; Calculate the dimensionless coal quality index corresponding to the i-th coal quality index to be analyzed as: y i =|(Y i -C' i ) / (MaxC i -MinC i )|, where yi is the value of the dimensionless coal quality index to be analyzed corresponding to the i-th coal quality index to be analyzed, Y i is the value of the i-th coal quality index to be analyzed.

5. The method for controlling the quality of coal entering the entrained flow gasification furnace according to claim 2, characterized in that: The calculating of the Euclidean distances between the dimensionless standard coal quality indexes of the incoming coal and the corresponding dimensionless coal quality indexes of the coal to be analyzed comprises: The Euclidean distance between the standard coal quality index vector composed of multiple dimensionless standard coal quality index values ​​and the coal quality index vector to be analyzed composed of multiple dimensionless coal quality index values ​​to be analyzed is calculated as: Where A is the standard coal quality index vector of the furnace, and its n-dimensional space contains (x1, x2, x3, ..., x i , ..., x n ), where x i is the value of the dimensionless standard coal quality index corresponding to the i-th standard coal quality index, B is the coal quality index vector to be analyzed, and its n-dimensional space contains (y1, y2, y3, ..., y i , ..., y n ), where y i is the value of the dimensionless coal quality index to be analyzed corresponding to the i-th coal quality index to be analyzed, and n is the number of coal quality indicators.

6. The method for controlling the quality of coal fed into an entrained flow gasification furnace according to claim 2, characterized in that: The step of adjusting the coal blending of the coal to be analyzed comprises: Calculate the absolute value of the difference between the value of each dimensionless standard coal quality index of incoming coal and the value of the corresponding dimensionless coal quality index of the coal to be analyzed; Select the dimensionless coal quality index to be analyzed with the largest absolute value of the difference as the dimensionless coal quality index to be analyzed to be adjusted; Adjusting the dimensionless coal quality index to be adjusted to be analyzed until the absolute value of the difference between the value of the corresponding dimensionless standard coal quality index of the incoming coal is less than or equal to the difference threshold; Recalculating the Euclidean distances between the dimensionless standard coal quality indexes of incoming coal and the corresponding dimensionless coal quality indexes of the coal to be analyzed; If the Euclidean distance is less than 1, it is determined that the coal to be analyzed directly enters the gasifier and the adjustment is ended; otherwise, the coal blending of the coal to be analyzed is adjusted again.

7. The method for controlling the quality of coal fed into an entrained flow gasification furnace according to any one of claims 1 to 6, characterized in that: The coal quality index is an index related to the gasification performance and operational safety and stability of the gasifier.

8. An electronic device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to at least one of the processors; wherein, The memory stores instructions that can be executed by at least one of the processors, and the instructions are executed by at least one of the processors so that at least one of the processors can execute the method for controlling the quality of coal entering the fluidized flow gasification furnace as described in any one of claims 1 to 7.

9. A storage medium, characterized in that: The storage medium stores computer instructions, and when a computer executes the computer instructions, it is used to execute all steps of the method for controlling the quality of coal entering the entrained flow gasification furnace as described in any one of claims 1 to 7.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instruction is executed by the processor, the method for controlling the quality of coal entering the entrained flow gasification furnace as described in any one of claims 1 to 7 is implemented.

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