Method, device and equipment for detecting suitability of coke and blast furnace burden and medium

Abstract

The invention discloses a method, a device, equipment and a medium for detecting the suitability of coke and blast furnace burden. The method comprises the following steps: charging a first mass of coke and a second mass of blast furnace burden into a reduction furnace for a reduction test; determining the third mass of the coke after the reduction reaction, and the fourth mass, the iron element content and the ferrous content of the blast furnace burden after the reduction reaction; a third mass of coke after the reduction reaction and a fourth mass of blast furnace burden after the reduction reaction are used as samples to be loaded into the molten drop furnace, and the shrinkage rate, the softening temperature and the pressure of the samples in the molten drop furnace are obtained; according to the first mass, the second mass, the third mass, the fourth mass, the iron element content and the ferrous iron content, the suitability of the coke and the blast furnace burden under the blocky zone is determined; and according to the shrinkage rate, the softening temperature and the pressure, the suitability of the coke and the blast furnace burden in the soft melting zone and the dripping zone is determined. The method can be used for measuring the suitability of the coke and the furnace charge in different areas of the blast furnace.

Description

Technical Field

[0001] The present invention relates to the field of metallurgical technology, and particularly to a method, device, equipment and medium for detecting the adaptability between coke and blast furnace burden. Background Art

[0002] Coke plays the roles of reducing agent, carburizing agent, heat supply agent and skeleton in the process of blast furnace ironmaking. The blast furnace can be divided into charging zone, lump zone, soft melting zone, dripping zone, raceway combustion zone and hearth zone from top to bottom, and the temperature gradually increases from 100°C to over 1500°C. The performance requirements for coke in different zones are also different. It is found in production practice that the reaction conditions between coke and iron raw materials charged into the furnace are different at different positions in the blast furnace, so the quality requirements for coke at different positions are also different.

[0003] In the prior art, after cutting the coke, it forms a surface contact with the burden, and the adaptability between coke and the burden is evaluated by measuring the loss thickness of coke and the thickness of sponge iron generated.

[0004] However, this method can only evaluate the adaptability between coke and the burden as a whole, and cannot reflect the adaptability between coke and the burden at each position in the lump zone, soft melting zone and dripping zone during the blast furnace smelting process. Summary of the Invention

[0005] In view of the above problems, the present invention is proposed to provide a method, device, equipment and medium for detecting the adaptability between coke and blast furnace burden, which can perform a reduction test by simulating the atmosphere and temperature of the lump zone of the blast furnace in a reduction furnace, so as to obtain the adaptability between coke and blast furnace burden in the lump zone. Then, taking the reduced coke and blast furnace burden as samples of a drip furnace, and performing tests by simulating the atmosphere and temperature of the soft melting zone and dripping zone of the blast furnace in the drip furnace, the adaptability between coke and blast furnace burden in the soft melting zone and dripping zone can be obtained.

[0006] In a first aspect, the present invention provides a method for detecting the adaptability between coke and blast furnace burden, which is applied to a detection system. The detection system includes a reduction furnace and a drip furnace. The method includes:

[0007] Loading a first mass of coke and a second mass of blast furnace burden into the reduction furnace for a reduction test. During the reduction test, adjusting a first operating parameter of the reduction furnace so that the first operating parameter is the same as the operating parameter of the lump zone of the blast furnace. The first operating parameter includes reduction atmosphere, reduction heating rate and reduction gas flow rate;

[0008] After the reduction test ends, determining a third mass of the coke after the reduction reaction, and the iron element content, ferrous content and a fourth mass of the blast furnace burden after the reduction reaction;

[0009] Load the coke after the reduction reaction and the blast furnace burden after the reduction reaction into the smelting drop furnace, adjust the second operating parameters of the smelting drop furnace so that the second operating parameters are the same as the operating parameters of the softening and dripping zones of the blast furnace, and obtain the shrinkage rate, softening temperature and pressure of the sample in the smelting drop furnace; the second operating parameters include the smelting drop atmosphere, the smelting drop heating rate and the smelting drop gas flow rate;

[0010] Determine the first compatibility of the coke and the blast furnace burden under the burden zone according to the first mass, the second mass, the third mass, the fourth mass, the iron element content and the ferrous content;

[0011] Determine the second compatibility of the coke and the blast furnace burden under the softening and dripping zones according to the shrinkage rate, the softening temperature and the pressure.

[0012] Optionally, adjusting the first operating parameters of the reduction furnace includes:

[0013] Obtain the reduction furnace temperature and control the reduction gas flow rate of the reduction furnace to a target flow rate;

[0014] If the reduction furnace temperature is less than or equal to a preset first temperature threshold, control the reduction atmosphere of the reduction furnace to be air and the reduction heating rate to be a first rate;

[0015] If the reduction furnace temperature is greater than the first temperature threshold and less than or equal to a preset second temperature threshold, control the reduction atmosphere to be a first mixed gas and the reduction heating rate to be a second rate; wherein, the first mixed gas includes nitrogen, carbon monoxide and carbon dioxide, and the volume ratio of the nitrogen, the carbon monoxide and the carbon dioxide is 2:1:1;

[0016] If the reduction furnace temperature is greater than the second temperature threshold and less than a preset third temperature threshold, control the reduction atmosphere to be a second mixed gas and the reduction heating rate to be the second rate; wherein, the second mixed gas includes the nitrogen, the carbon monoxide and the carbon dioxide, and the volume ratio of the nitrogen, the carbon monoxide and the carbon dioxide is 10:7:3;

[0017] If the reduction furnace temperature is equal to the third temperature threshold, control the reduction atmosphere to be the first mixed gas, the reduction heating rate to be 0, and starting from when the reduction heating rate is 0, after a set duration, control the reduction heating rate to be a third rate;

[0018] If the reduction furnace temperature is greater than the third temperature threshold and less than or equal to a preset fourth temperature threshold, control the reduction atmosphere to be the first mixed gas and the reduction heating rate to be the third rate;

[0019] If the temperature of the reduction furnace is greater than the fourth temperature threshold, control the reduction atmosphere to be the nitrogen gas and stop heating;

[0020] If the temperature of the reduction furnace drops to a preset fifth temperature threshold, control the end of the reduction test;

[0021] Among them, the fifth temperature threshold, the first temperature threshold, the second temperature threshold, the third temperature threshold and the fourth temperature threshold increase in sequence.

[0022] Optionally, the fifth temperature threshold is room temperature, the first temperature threshold is 200 °C, the second temperature threshold is 650 °C, the third temperature threshold is 900 °C and the fourth temperature threshold is 1100 °C; the first rate is 20 °C / min, the second rate is 10 °C / min and the third rate is 2 °C / min; the target flow rate is 15 L / min and the set duration is 2 hours.

[0023] Optionally, adjusting the second operating parameter of the droplet furnace includes:

[0024] Obtain the temperature of the droplet furnace;

[0025] If the temperature of the droplet furnace is less than a preset sixth temperature threshold, control the droplet atmosphere of the droplet furnace to be nitrogen gas, the droplet heating rate to be the fourth rate, and the droplet gas flow rate to be the first flow rate;

[0026] If the temperature of the droplet furnace is greater than or equal to the sixth temperature threshold and less than a preset seventh temperature threshold, control the droplet atmosphere to be the nitrogen gas, the droplet heating rate to be the fifth rate, and the droplet gas flow rate to be the second flow rate;

[0027] If the temperature of the droplet furnace is greater than or equal to the seventh temperature threshold and less than a preset eighth temperature threshold, control the droplet atmosphere to be a third mixed gas, the droplet heating rate to be the sixth rate, and the droplet gas flow rate to be the third flow rate; wherein, the third mixed gas includes nitrogen gas and carbon monoxide, and the volume ratio of the nitrogen gas to the carbon monoxide is 1:1;

[0028] If the temperature of the droplet furnace is greater than or equal to the eighth temperature threshold, control the droplet atmosphere to be the nitrogen gas, the droplet gas flow rate to be the fourth flow rate, and stop heating.

[0029] Optionally, the sixth temperature threshold is 900 °C, the seventh temperature threshold is 1100 °C, and the eighth temperature threshold is 1600 °C; the first flow rate is 6 L / min, and the second, third, and fourth flow rates are 10 L / min; the fourth rate is 10 °C / min, the fifth rate is 2 °C / min, and the sixth rate is 5 °C / min.

[0030] Optionally, determining the first compatibility between the coke and the blast furnace burden under the burden zone according to the first mass, the second mass, the third mass, the fourth mass, the iron element content, and the ferrous iron content includes:

[0031] Calculating the difference between the first mass and the second mass;

[0032] Calculating the reducibility of the blast furnace burden according to the third mass, the fourth mass, the iron element content, and the ferrous iron content;

[0033] Determining the first compatibility between the coke and the blast furnace burden under the burden zone according to the difference and the reducibility.

[0034] Optionally, the pressure includes the top pressure and the bottom pressure. Determining the second compatibility between the coke and the blast furnace burden under the cohesive zone and the dropping zone according to the shrinkage rate, the softening temperature, and the pressure includes:

[0035] Determining the softening start temperature and the softening end temperature from the softening temperature, and calculating the temperature difference between the softening start temperature and the softening end temperature to obtain the softening range;

[0036] Determining the softening temperature corresponding to the maximum value of the pressure difference between the top pressure and the bottom pressure as the melting temperature;

[0037] Determining the second compatibility between the coke and the blast furnace burden under the cohesive zone and the dropping zone according to the softening range and the melting temperature;

[0038] Wherein, the softening start temperature is the softening temperature corresponding to a shrinkage rate of 10%, and the softening end temperature is the softening temperature corresponding to a shrinkage rate of 40%.

[0039] In a second aspect, the present invention provides a detection device for the compatibility between coke and blast furnace burden, which is applied to a detection system. The detection system includes a reduction furnace and a smelting drop furnace, and the device includes:

[0040] A reduction module for loading coke of a first quality and blast furnace burden of a second quality into the reduction furnace for a reduction test. During the reduction test, a first operating parameter of the reduction furnace is adjusted to make the first operating parameter the same as the operating parameter of the blast furnace lump zone. The first operating parameter includes a reduction atmosphere, a reduction heating rate, and a reduction gas flow rate;

[0041] A first determination module for determining, after the reduction test, the third quality of the coke after the reduction reaction, and the iron element content, ferrous content, and fourth quality of the blast furnace burden after the reduction reaction;

[0042] A droplet melting module for loading the coke after the reduction reaction and the blast furnace burden after the reduction reaction as samples into the droplet melting furnace, adjusting a second operating parameter of the droplet melting furnace to make the second operating parameter the same as the operating parameter of the blast furnace softening and dripping zones, and obtaining the shrinkage rate, softening temperature, and pressure of the samples in the droplet melting furnace; the second operating parameter includes a droplet melting atmosphere, a droplet melting heating rate, and a droplet melting gas flow rate;

[0043] A second determination module for determining a first compatibility between the coke and the blast furnace burden under the lump zone according to the first quality, the second quality, the third quality, the fourth quality, the iron element content, and the ferrous content;

[0044] A third determination module for determining a second compatibility between the coke and the blast furnace burden under the softening and dripping zones according to the shrinkage rate, the softening temperature, and the pressure.

[0045] In a third aspect, the present invention provides an electronic device, including: a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to execute the method as described in the first aspect.

[0046] In a fourth aspect, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the method as described in the first aspect.

[0047] The technical solution provided in the embodiments of the present invention has at least the following technical effects or advantages:

[0048] A detection method, device, equipment and medium for the compatibility between coke and blast furnace burden provided by an embodiment of the present invention can load coke of a first mass and blast furnace burden of a second mass into a reduction furnace for a reduction test. During the reduction test, the first operating parameters of the reduction furnace are adjusted to make the first operating parameters the same as the operating parameters of the blast furnace lump zone. The first operating parameters include reduction atmosphere, reduction heating rate, and reduction gas flow rate, and the atmosphere and temperature of the blast furnace lump zone are simulated by the reduction furnace; after the reduction test, the third mass of the coke after the reduction reaction, as well as the fourth mass, iron element content, and ferrous iron content of the blast furnace burden after the reduction reaction are determined to understand the performance changes of the coke and the blast furnace burden; the third mass of the coke after the reduction reaction and the fourth mass of the blast furnace burden after the reduction reaction are used as samples and loaded into a drip furnace, and the second operating parameters of the drip furnace are adjusted to make the second operating parameters the same as the operating parameters of the blast furnace soft melting zone and the dripping zone. The second operating parameters include drip atmosphere, drip heating rate, and drip gas flow rate, and the atmosphere and temperature of the blast furnace soft melting zone and the dripping zone are simulated by the drip furnace, and the shrinkage rate, softening temperature, and pressure of the samples in the drip furnace are obtained to understand the performance changes of the samples; according to the first mass, second mass, third mass, fourth mass, iron element content, and ferrous iron content, the first compatibility between the coke and the blast furnace burden under the lump zone is determined; according to the shrinkage rate, softening temperature, and pressure, the second compatibility between the coke and the blast furnace burden under the soft melting zone and the dripping zone is determined.

[0049] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of the present invention more obvious and understandable, the following specifically gives the specific embodiments of the present invention. Brief Description of the Drawings

[0050] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. And throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0051] Figure 1 is a flowchart of a detection method for the compatibility between coke and blast furnace burden provided by an embodiment of the present invention;

[0052] Figure 2 is a structural block diagram of a detection device for the compatibility between coke and blast furnace burden provided by an embodiment of the present invention. Detailed Description of the Preferred Embodiments

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings. It should be understood that the embodiments of the present disclosure and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. Without conflict, the technical features in the embodiments of this application and the embodiments can be combined with each other.

[0054] Before introducing in detail the detection method for the adaptability of coke and blast furnace burden provided by the embodiments of the present invention, a brief introduction to the application scenarios involved will be given first.

[0055] Coke plays the roles of reducing agent, carburizing agent, heat supply agent, and skeleton in the process of blast furnace ironmaking. The blast furnace can be divided into positions such as the charging zone, lump zone, softening-melting zone, dripping zone, raceway combustion zone, and hearth zone from top to bottom, and the temperature gradually increases from 100°C to over 1500°C. Different performance requirements for coke are also different in different regions. Conventional coke quality evaluation indicators include coke shatter strength (M40), coke abrasion strength (M10), coke reactivity (coke reaction index, CRI), and coke strength after reaction (coke strength index after reaction, CSR). Among them, M40 and M10 are mainly used to evaluate the ability of coke to resist mechanical wear during blast furnace smelting, and CRI and CSR are mainly used to evaluate the gasification and dissolution reaction ability of coke during blast furnace smelting.

[0056] Although the blast furnace design manual clearly states the requirements for the above indicators, it is found in production practice that the reaction conditions between coke and the iron raw materials charged into the furnace are different at different positions in the blast furnace, and the quality requirements for coke are also different. In particular, the use of CRI and CSR cannot fully reflect the adaptability of coke to different blast furnace burdens in the lump zone, softening-melting zone, and dripping zone of the blast furnace.

[0057] In the prior art, after cutting the coke, it forms a surface contact with the burden, and the adaptability of the coke to the burden is evaluated by measuring the loss thickness of the coke and the thickness of the sponge iron generated.

[0058] However, this method can only evaluate the adaptability of coke to the burden as a whole and cannot reflect the adaptability of coke to the burden at each position in the lump zone, softening-melting zone, and dripping zone during blast furnace smelting.

[0059] Therefore, the present invention provides a detection method, device, equipment and medium for the adaptability of coke and blast furnace burden to solve the above problems. The reduction test can be carried out by simulating the atmosphere and temperature of the blast furnace lump zone in a reduction furnace, so as to obtain the adaptability of coke and blast furnace burden under the lump zone. After taking the reduced coke and blast furnace burden as samples of the smelting drop furnace, the test can be carried out by simulating the atmosphere and temperature of the blast furnace cohesive zone and dripping zone in the smelting drop furnace, and the adaptability of coke and blast furnace burden under the cohesive zone and dripping zone can be obtained.

[0060] Figure 1 FIG. is a flowchart of a detection method for the adaptability of coke and blast furnace burden provided by an embodiment of the present invention. This method is applied to a detection system, and the detection system includes a reduction furnace and a smelting drop furnace. As Figure 1 shown, this method includes:

[0061] Step S110: Load coke with a first mass and blast furnace burden with a second mass into the reduction furnace for a reduction test.

[0062] During the reduction test, adjust the first operating parameters of the reduction furnace to make the first operating parameters the same as those of the blast furnace lump zone. The first operating parameters include reduction atmosphere, reduction heating rate, and reduction gas flow rate.

[0063] In the embodiments of the present application, by simulating the atmosphere and temperature of the blast furnace lump zone in the reduction furnace, the reaction process of coke and blast furnace burden in the reduction furnace is equivalent to the reaction process in the blast furnace lump zone.

[0064] The blast furnace burden includes sinter, pellet, and lump ore, and the particle size is 10 - 12.5 mm; the coke is a coke ball with a particle size of 20 - 23 mm. In order to compare the ore-coke coupling effect, a control test of separate blast furnace burden and coke is set up, and the missing samples in the control test are replaced with high-aluminum balls that do not react with them, so as to screen out the qualified blast furnace burden and coke.

[0065] In the embodiments of the present application, when using the reduction furnace for the reduction test, the proportion range of each ore in the blast furnace burden is: sinter 0 - 50%, pellet 0 - 60%, lump ore 0 - 20%. The second mass m1 of the blast furnace burden is controlled to be less than 1000 g, and the first mass ms1 of the coke quality is about 200 g. The coke is charged in two layers, and the mass of the upper and lower layers can be about 100 g respectively, and the blast furnace burden is in the middle of the upper and lower layers.

[0066] Step S120: After the reduction test is completed, determine the third mass of the coke after the reduction reaction, as well as the iron element content, ferrous iron content, and the fourth mass of the blast furnace burden after the reduction reaction.

[0067] In the embodiments of the present application, in the reduction test, the performance changes of coke and blast furnace burden can reflect the adaptability between the coke and the blast furnace burden in the lower part of the burden zone. The performance may include mass and composition, and the composition may include iron element content and ferrous iron content.

[0068] In the embodiments of the present application, after the reduction test is completed, the reacted blast furnace burden and coke are taken out, and the fourth mass m2 of the blast furnace burden is weighed and recorded respectively. The sum of the masses of the upper and lower layers of coke is ms2. Then, the reacted blast furnace burden is analyzed to obtain its iron element content W1 and ferrous iron content W2.

[0069] Step S130: Load the third mass of the reduced coke and the fourth mass of the reduced blast furnace burden as samples into the smelting drop furnace, and adjust the second operating parameters of the smelting drop furnace so that the second operating parameters are the same as the operating parameters of the softening-melting zone and the dripping zone of the blast furnace, and obtain the shrinkage rate, softening temperature and pressure of the samples in the smelting drop furnace; the second operating parameters include smelting drop atmosphere, smelting drop heating rate and smelting drop gas flow rate.

[0070] In the embodiments of the present application, the reduced coke and blast furnace burden are loaded into the smelting drop furnace as samples. When loading, the coke is still placed in the upper and lower layers, and the middle layer is the blast furnace burden. The samples are made to react in the smelting drop furnace. By simulating the atmosphere and temperature of the softening-melting zone and the dripping zone of the blast furnace in the smelting drop furnace, the performance changes of the samples in the smelting drop furnace can reflect the adaptability between the coke and the blast furnace burden in the softening-melting zone and the dripping zone. Among them, the performance includes the shrinkage rate, softening temperature and pressure of the samples.

[0071] Step S140: Determine the first adaptability between the coke and the blast furnace burden in the lower part of the burden zone according to the first mass, the second mass, the third mass, the fourth mass, the iron element content and the ferrous iron content.

[0072] In the embodiments of the present application, the adaptability between the coke and the blast furnace burden in the lower part of the burden zone can be analyzed according to the mass and composition of the coke and the blast furnace burden before and after the reduction reaction.

[0073] Step S150: Determine the second adaptability between the coke and the blast furnace burden in the softening-melting zone and the dripping zone according to the shrinkage rate, softening temperature and pressure.

[0074] In the embodiments of the present application, the adaptability between the coke and the blast furnace burden in the softening-melting zone and the dripping zone can be analyzed according to the change data of the shrinkage rate, softening temperature and pressure of the samples in the smelting drop furnace.

[0075] In the embodiment of the present application, the method combines a reduction furnace and a smelting drop furnace. The reduction furnace is used to simulate the burden zone of a blast furnace, and the smelting drop furnace is used to simulate the cohesive zone and the dripping zone of a blast furnace. After the reaction of coke and blast furnace burden in the reduction furnace, they can be taken out, and the performance analysis such as the quality and composition of the coke and the burden after the reduction reaction is carried out respectively. After the reaction of the burden and coke after the reduction reaction in the smelting drop furnace, the performance analysis is carried out, and the compatibility of coke and burden can be analyzed according to the performance changes. By changing the composition and ratio of the blast furnace burden and cyclically executing the method in the present application, the compatibility of coke and different blast furnace burdens can be obtained.

[0076] Optionally, step S110 includes:

[0077] Obtain the temperature of the reduction furnace and control the flow rate of the reducing gas in the reduction furnace to the target flow rate;

[0078] If the temperature of the reduction furnace is less than or equal to the preset first temperature threshold, control the reducing atmosphere in the reduction furnace to be air and the reduction heating rate to be the first rate;

[0079] If the temperature of the reduction furnace is greater than the first temperature threshold and less than or equal to the preset second temperature threshold, control the reducing atmosphere to be the first mixed gas and the reduction heating rate to be the second rate; wherein, the first mixed gas includes nitrogen, carbon monoxide and carbon dioxide, and the volume ratio of nitrogen, carbon monoxide and carbon dioxide is 2:1:1;

[0080] If the temperature of the reduction furnace is greater than the second temperature threshold and less than the preset third temperature threshold, control the reducing atmosphere to be the second mixed gas and the reduction heating rate to be the second rate; wherein, the second mixed gas includes nitrogen, carbon monoxide and carbon dioxide, and the volume ratio of nitrogen, carbon monoxide and carbon dioxide is 10:7:3;

[0081] If the temperature of the reduction furnace is equal to the third temperature threshold, control the reducing atmosphere to be the first mixed gas, the reduction heating rate to be 0, and starting from when the reduction heating rate is 0, after a set duration, control the reduction heating rate to be the third rate;

[0082] If the temperature of the reduction furnace is greater than the third temperature threshold and less than or equal to the preset fourth temperature threshold, control the reducing atmosphere to be the first mixed gas and the reduction heating rate to be the third rate;

[0083] If the temperature of the reduction furnace is greater than the fourth temperature threshold, control the reducing atmosphere to be nitrogen and stop heating;

[0084] If the temperature of the reduction furnace drops to the preset fifth temperature threshold, control the reduction test to end;

[0085] Among them, the fifth temperature threshold, the first temperature threshold, the second temperature threshold, the third temperature threshold and the fourth temperature threshold increase in sequence.

[0086] In the embodiments of the present application, according to the temperature of the reduction furnace, the reduction atmosphere and the reduction heating rate of the reduction furnace are changed, and the flow rate of the reduction gas is always maintained at the target flow rate, so that the atmosphere and temperature of the reduction furnace are consistent with the atmosphere and temperature of the blast furnace burden zone, thereby simulating the reaction process of the blast furnace burden zone.

[0087] Optionally, the fifth temperature threshold is room temperature, the first temperature threshold is 200 °C, the second temperature threshold is 650 °C, the third temperature threshold is 900 °C, and the fourth temperature threshold is 1100 °C; the first rate is 20 °C / min, the second rate is 10 °C / min, and the third rate is 2 °C / min; the target flow rate is 15 L / min, and the set duration is 2 hours.

[0088] Specifically, before the temperature of the reduction furnace reaches 200 °C, the reduction furnace uses an air atmosphere, and the reduction heating rate is 20 °C / min; when the temperature of the reduction furnace is between 200 °C and 650 °C, a mixture of nitrogen, carbon monoxide, and carbon dioxide is used, and the volume fractions are 50%, 25%, and 25% respectively, the flow rate of the reduction gas is 15 L / min, and the reduction heating rate is 10 °C / min; when the temperature of the reduction furnace is between 650 °C and 900 °C, a mixture of nitrogen, carbon monoxide, and carbon dioxide is used, and the volume fractions are 50%, 35%, and 15% respectively, the flow rate of the reduction gas is 15 L / min, and the reduction heating rate is 10 °C / min; when the temperature of the reduction furnace is 900 °C, it is kept at a constant temperature for 2 hours, a mixture of nitrogen, carbon monoxide, and carbon dioxide is used, and the volume fractions are 50%, 25%, and 25% respectively, the flow rate of the reduction gas is 15 L / min; after 2 hours, the reduction furnace uses a mixture of nitrogen, carbon monoxide, and carbon dioxide, and the volume fractions are 50%, 25%, and 25% respectively, the flow rate of the reduction gas is 15 L / min, and the reduction heating rate is 2 °C / min; after the temperature of the reduction furnace reaches 1100 °C, it starts to cool, stops heating, uses a nitrogen atmosphere, and the flow rate of the reduction gas is 15 L / min; after the reduction furnace cools to room temperature, the reduction test ends. The coke and blast furnace burden can be removed for performance analysis.

[0089] Optionally, step S130 includes:

[0090] Obtain the temperature of the smelting drop furnace;

[0091] If the temperature of the smelting drop furnace is less than the preset sixth temperature threshold, then control the smelting drop atmosphere of the smelting drop furnace to be nitrogen, the smelting drop heating rate to be the fourth rate, and the smelting drop gas flow rate to be the first flow rate;

[0092] If the temperature of the smelting drop furnace is greater than or equal to the sixth temperature threshold and less than the preset seventh temperature threshold, then control the smelting drop atmosphere of the smelting drop furnace to be nitrogen, the smelting drop heating rate to be the fifth rate, and the smelting drop gas flow rate to be the second flow rate;

[0093] If the temperature of the droplet furnace is greater than or equal to the seventh temperature threshold and less than the preset eighth temperature threshold, control the droplet atmosphere to be the third mixed gas, the droplet heating rate to be the sixth rate, and the droplet gas flow rate to be the third flow rate; wherein, the third mixed gas includes nitrogen and carbon monoxide, and the volume ratio of nitrogen to carbon monoxide is 1:1;

[0094] If the temperature of the droplet furnace is greater than or equal to the eighth temperature threshold, control the droplet atmosphere to be nitrogen, the droplet gas flow rate to be the fourth flow rate, and stop heating.

[0095] In the embodiments of the present application, according to the temperature of the droplet furnace, change the atmosphere, heating rate and gas flow rate of the droplet furnace so that the atmosphere and temperature of the droplet furnace are consistent with the atmosphere and temperature of the soft melting zone and the dripping zone of the blast furnace, thereby simulating the reaction process of the soft melting zone and the dripping zone of the blast furnace.

[0096] Optionally, the sixth temperature threshold is 900 °C, the seventh temperature threshold is 1100 °C, and the eighth temperature threshold is 1600 °C; the first flow rate is 6 L / min, and the second, third, and fourth flow rates are 10 L / min; the fourth rate is 10 °C / min, the fifth rate is 2 °C / min, and the sixth rate is 5 °C / min.

[0097] Specifically, before the temperature of the droplet furnace reaches 900 °C, use a nitrogen atmosphere, the droplet gas flow rate is 6 L / min, and the droplet heating rate is 10 °C / min; when the temperature of the droplet furnace is between 900 °C and 1100 °C, use a nitrogen atmosphere, the droplet gas flow rate is 10 L / min, and the droplet heating rate is 2 °C / min; when the temperature of the droplet furnace is between 1100 °C and 1600 °C, use a mixed gas of nitrogen and carbon monoxide, and the volume fractions are 50% and 50% respectively, the total droplet gas flow rate is 10 L / min, and the droplet heating rate is 5 °C / min; after the temperature of the droplet furnace reaches 1600 °C, stop heating for cooling, use a nitrogen atmosphere, the droplet gas flow rate is 10 L / min, and stop heating after cooling to room temperature.

[0098] Optionally, step S140 includes:

[0099] Calculate the difference between the first mass and the second mass; calculate the reduction degree of the blast furnace burden according to the third mass, the fourth mass, the iron element content and the ferrous content; determine the first compatibility between the coke and the blast furnace burden under the burden zone according to the difference and the reduction degree.

[0100] In the embodiments of the present application, the first compatibility between the coke and the blast furnace burden under the burden zone can be reflected by the mass difference before and after the coke reduction reaction. The greater the mass difference, the better the first compatibility. The first compatibility between the coke and the blast furnace burden under the burden zone can be reflected by the reduction degree of the blast furnace burden. The better the reduction degree, the better the first compatibility.

[0101] Among them, the calculation method of the reduction degree is as follows:

[0102]

[0103] Among them, R% represents the reduction degree, W1 represents the iron element content, W2 represents the ferrous iron content, m1 represents the second mass, and m2 represents the fourth mass.

[0104] In the embodiments of the present application, industrial, ash composition, and microstructure analysis can also be performed on the coke after the reduction reaction. Industrial analysis can obtain the coke ash, volatile matter, and fixed carbon. Through the coke ash, volatile matter, and fixed carbon, the first compatibility between the coke and the blast furnace burden in the lump zone can be reflected. Among them, the greater the coke ash, the more coke consumed by the blast furnace, and the better the first compatibility.

[0105] The ash composition includes elements such as silicon, aluminum, iron, calcium, magnesium, potassium, sodium, and zinc in the coke ash, and their mass percentages are all expressed in the form of oxides. Among them, the greater the silicon-aluminum ratio, the better the compatibility with the burden, and at the same time, the lower the contents of potassium, sodium, zinc, and iron, calcium, and magnesium are better.

[0106] Microscopic scale analysis includes the isotropic and anisotropic properties of coke. The higher the anisotropic content, the better the first compatibility.

[0107] In the embodiments of the present application, the first compatibility between the burden and the coke can also be measured from several parameters such as the ash content, silicon-aluminum ratio, iron, calcium, and magnesium content, potassium, sodium, and zinc content, and anisotropic content of the coke. The higher the ash content, the higher the silicon-aluminum ratio, the lower the iron, calcium, and magnesium and potassium, sodium, and zinc, and the higher the anisotropic content, the better the first compatibility.

[0108] Optionally, the pressure includes the top pressure and the bottom pressure, and step S150 includes:

[0109] Determine the softening start temperature and the softening end temperature from the softening temperature, and calculate the temperature difference between the softening start temperature and the softening end temperature to obtain the softening interval; determine the softening temperature corresponding to the maximum value of the pressure difference between the top pressure and the bottom pressure, which is the melting temperature; according to the softening interval and the melting temperature, determine the second compatibility between the coke and the blast furnace burden in the softening zone and the dripping zone.

[0110] Among them, the softening start temperature is the softening temperature corresponding to a shrinkage rate of 10%, and the softening end temperature is the softening temperature corresponding to a shrinkage rate of 40%.

[0111] In the embodiment of the present application, a temperature sensor, a displacement sensor, and a pressure sensor are arranged in the droplet furnace. The softening temperature of the sample is detected by the temperature sensor, the height change of the sample is detected by the displacement sensor, so as to obtain the shrinkage rate of the sample, and the top pressure and bottom pressure of the sample are detected by the pressure sensor. During the entire reaction process of the sample in the droplet furnace, the softening temperature, shrinkage rate, and pressure changing with time can be obtained. The softening temperature, shrinkage rate, and pressure are recorded one-to-one with time. The softening start temperature is obtained by finding the softening temperature corresponding to a shrinkage rate of 10%, and the softening end temperature is obtained by finding the softening temperature corresponding to a shrinkage rate of 40%. The temperature difference between the two is calculated to obtain the softening interval. The larger the softening interval, the better the second adaptability between the coke and the blast furnace burden in the softening zone and the dripping zone. The pressure difference between the top pressure and the bottom pressure at the same time is calculated to obtain the pressure difference at this time. The softening temperature corresponding to the maximum pressure difference is found to obtain the melting temperature. If the melting temperature is less than the melting temperature threshold, the second adaptability is better. Among them, the melting temperature threshold can be 1500 °C.

[0112] The method of the embodiment of the present application combines a reduction furnace and a droplet furnace, can evaluate the interaction between the blast furnace burden and the coke in zones, helps to adjust the coking coal blending production for different types of blast furnace burdens, protects high-quality coking coal resources, reduces the cost of coking production, and at the same time reduces the coke consumption in the blast furnace, boosting the sustainable development of blast furnace ironmaking with low consumption and low cost.

[0113] Based on the same inventive concept, the embodiment of the present invention also provides a detection device for the adaptability between coke and blast furnace burden. Figure 2 As shown in Figure 2 FIG. [figure number not provided], the device 200 includes a reduction module 201, a first determination module 202, a droplet module 203, a second determination module 204, and a third determination module 205.

[0114] The reduction module 201 is used to load a first mass of coke and a second mass of blast furnace burden into the reduction furnace for a reduction test. During the reduction test, the first operating parameters of the reduction furnace are adjusted so that the first operating parameters are the same as the operating parameters of the blast furnace lump zone. The first operating parameters include the reduction atmosphere, the reduction heating rate, and the reduction gas flow rate.

[0115] The first determination module 202 is used to determine the third mass of the coke after the reduction reaction, as well as the iron element content, ferrous content, and the fourth mass of the blast furnace burden after the reduction reaction after the reduction test is completed.

[0116] The droplet module 203 is used to load the coke after the reduction reaction and the blast furnace burden after the reduction reaction into the droplet furnace as samples, adjust the second operating parameter of the droplet furnace so that the second operating parameter is the same as the operating parameters of the cohesive zone and the dripping zone of the blast furnace, and obtain the shrinkage rate, softening temperature and pressure of the samples in the droplet furnace; the second operating parameter includes the droplet atmosphere, the droplet heating rate and the droplet gas flow rate;

[0117] The second determination module 204 is used to determine the first suitability of the coke and the blast furnace burden under the burden zone according to the first mass, the second mass, the third mass, the fourth mass, the iron element content and the ferrous content;

[0118] The third determination module 205 is used to determine the second suitability of the coke and the blast furnace burden under the cohesive zone and the dripping zone according to the shrinkage rate, the softening temperature and the pressure.

[0119] Optionally, the reduction module 201 is further used to:

[0120] Obtain the temperature of the reduction furnace and control the reduction gas flow rate of the reduction furnace to the target flow rate;

[0121] If the temperature of the reduction furnace is less than or equal to the preset first temperature threshold, control the reduction atmosphere of the reduction furnace to be air and the reduction heating rate to be the first rate;

[0122] If the temperature of the reduction furnace is greater than the first temperature threshold and less than or equal to the preset second temperature threshold, control the reduction atmosphere to be the first mixed gas and the reduction heating rate to be the second rate; wherein, the first mixed gas includes nitrogen, carbon monoxide and carbon dioxide, and the volume ratio of nitrogen, carbon monoxide and carbon dioxide is 2:1:1;

[0123] If the temperature of the reduction furnace is greater than the second temperature threshold and less than the preset third temperature threshold, control the reduction atmosphere to be the second mixed gas and the reduction heating rate to be the second rate; wherein, the second mixed gas includes nitrogen, carbon monoxide and carbon dioxide, and the volume ratio of nitrogen, carbon monoxide and carbon dioxide is 10:7:3;

[0124] If the temperature of the reduction furnace is equal to the third temperature threshold, control the reduction atmosphere to be the first mixed gas, the reduction heating rate to be 0, and start when the reduction heating rate is 0, and after a set time, control the reduction heating rate to be the third rate;

[0125] If the temperature of the reduction furnace is greater than the third temperature threshold and less than or equal to the preset fourth temperature threshold, control the reduction atmosphere to be the first mixed gas and the reduction heating rate to be the third rate;

[0126] If the temperature of the reduction furnace is greater than the fourth temperature threshold, control the reduction atmosphere to be nitrogen and stop heating;

[0127] If the temperature of the reduction furnace drops to the preset fifth temperature threshold, control the end of the reduction test;

[0128] Among them, the fifth temperature threshold, the first temperature threshold, the second temperature threshold, the third temperature threshold, and the fourth temperature threshold increase in sequence.

[0129] Optionally, the fifth temperature threshold is room temperature, the first temperature threshold is 200 °C, the second temperature threshold is 650 °C, the third temperature threshold is 900 °C, and the fourth temperature threshold is 1100 °C; the first rate is 20 °C / min, the second rate is 10 °C / min, and the third rate is 2 °C / min; the target flow rate is 15 L / min, and the set duration is 2 hours.

[0130] Optionally, the droplet module 203 is further configured to:

[0131] Obtain the temperature of the droplet furnace;

[0132] If the temperature of the droplet furnace is less than the preset sixth temperature threshold, control the droplet atmosphere of the droplet furnace to be nitrogen, the droplet heating rate to be the fourth rate, and the droplet gas flow rate to be the first flow rate;

[0133] If the temperature of the droplet furnace is greater than or equal to the sixth temperature threshold and less than the preset seventh temperature threshold, control the droplet atmosphere to be nitrogen, the droplet heating rate to be the fifth rate, and the droplet gas flow rate to be the second flow rate;

[0134] If the temperature of the droplet furnace is greater than or equal to the seventh temperature threshold and less than the preset eighth temperature threshold, control the droplet atmosphere to be the third mixed gas, the droplet heating rate to be the sixth rate, and the droplet gas flow rate to be the third flow rate; among them, the third mixed gas includes nitrogen and carbon monoxide, and the volume ratio of nitrogen to carbon monoxide is 1:1;

[0135] If the temperature of the droplet furnace is greater than or equal to the eighth temperature threshold, control the droplet atmosphere to be nitrogen, the droplet gas flow rate to be the fourth flow rate, and stop heating.

[0136] Optionally, the sixth temperature threshold is 900 °C, the seventh temperature threshold is 1100 °C, and the eighth temperature threshold is 1600 °C; the first flow rate is 6 L / min, and the second flow rate, the third flow rate, and the fourth flow rate are 10 L / min; the fourth rate is 10 °C / min, the fifth rate is 2 °C / min, and the sixth rate is 5 °C / min.

[0137] Optionally, the second determination module 204 is further configured to:

[0138] Calculate the difference between the first mass and the second mass;

[0139] Calculate the reducibility of the blast furnace burden according to the third mass, the fourth mass, the iron element content, and the ferrous content;

[0140] Determine the first adaptability of coke and blast furnace burden under the burden zone according to the difference value and the reduction degree.

[0141] Optionally, the pressure includes the top pressure and the bottom pressure, and the third determination module 205 is further configured to:

[0142] Determine the softening start temperature and the softening end temperature from the softening temperature, calculate the temperature difference between the softening start temperature and the softening end temperature, and obtain the softening range;

[0143] Determine the softening temperature corresponding to the maximum value of the pressure difference between the top pressure and the bottom pressure, which is the melting temperature;

[0144] Determine the second adaptability of coke and blast furnace burden in the cohesive zone and the dripping zone according to the softening range and the melting temperature;

[0145] Wherein, the softening start temperature is the softening temperature corresponding to a shrinkage rate of 10%, and the softening end temperature is the softening temperature corresponding to a shrinkage rate of 40%.

[0146] It can be understood that the device provided in the above embodiment is only illustrated by dividing the above functional modules. In actual application, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0147] An embodiment of the present invention further provides an electronic device, which may include a processor and a memory, and the processor and the memory may be communicatively connected to each other through a bus or other means.

[0148] The processor may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. chips, or combinations of the above types of chips.

[0149] The memory may include a mass storage for data or instructions. By way of example and not limitation, the memory may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory may include removable or non-removable (or fixed) media. Where appropriate, the memory may be internal or external to the electronic device. In a particular embodiment, the memory may be a non-volatile solid-state memory.

[0150] In one example, the memory may be a read only memory (ROM). In one example, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or a flash memory, or a combination of two or more of these.

[0151] The processor reads and executes the computer program instructions stored in the memory to implement any one of the methods for detecting the adaptability of coke and blast furnace burden in the above embodiments.

[0152] In one example, the electronic device may further include a communication interface and a bus. Among them, the processor, the memory, and the communication interface are connected through the bus to complete communication with each other. The communication interface is mainly used to implement communication between the modules, devices, units, and / or devices in the embodiments of the present application. Where appropriate, the bus may include one or more buses.

[0153] In addition, in combination with the method for detecting the adaptability of coke and blast furnace burden in the above embodiments, the embodiments of the present invention may provide a computer-readable storage medium to implement. Computer program instructions are stored on the computer-readable storage medium; when the computer program instructions are executed by the processor, any one of the methods for detecting the adaptability of coke and blast furnace burden in the above embodiments is implemented.

[0154] Those skilled in the art can understand that to implement all or part of the processes in the above-mentioned embodiment methods, it can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned method embodiments. Among them, the storage medium can be a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory, a Hard Disk Drive (abbreviation: HDD), or a Solid-State Drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memories.

[0155] The technical solutions in the above embodiments of the present application at least have the following technical effects or advantages:

[0156] A detection method, device, equipment and medium for the adaptability of coke and blast furnace burden provided by an embodiment of the present invention can load coke of a first quality and blast furnace burden of a second quality into a reduction furnace for a reduction test. Among them, during the reduction test, the first operating parameters of the reduction furnace are adjusted to make the first operating parameters the same as the operating parameters of the blast furnace lump zone. The first operating parameters include a reduction atmosphere, a reduction heating rate, and a reduction gas flow rate, and the reduction furnace simulates the atmosphere and temperature of the blast furnace lump zone; after the reduction test is completed, the third quality of the coke after the reduction reaction, as well as the fourth quality, iron element content, and ferrous iron content of the blast furnace burden after the reduction reaction are determined to understand the performance changes of the coke and the blast furnace burden; the coke after the reduction reaction with the third quality and the blast furnace burden after the reduction reaction with the fourth quality are loaded into a drip furnace as samples, and the second operating parameters of the drip furnace are adjusted to make the second operating parameters the same as the operating parameters of the blast furnace softening and dripping zones. The second operating parameters include a drip atmosphere, a drip heating rate, and a drip gas flow rate, and the drip furnace simulates the atmosphere and temperature of the blast furnace softening and dripping zones, and the shrinkage rate, softening temperature, and pressure of the samples in the drip furnace are obtained to understand the performance changes of the samples; according to the first quality, the second quality, the third quality, the fourth quality, the iron element content, and the ferrous iron content, the first adaptability of the coke and the blast furnace burden under the lump zone is determined; according to the shrinkage rate, the softening temperature, and the pressure, the second adaptability of the coke and the blast furnace burden under the softening and dripping zones is determined.

[0157] In the specification provided here, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0158] Similarly, it should be understood that, for the purpose of streamlining the present disclosure and aiding in the understanding of one or more of the various inventive aspects, in the foregoing description of the exemplary embodiments of the present invention, the various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, the disclosed method should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, the inventive aspects lie in less than all the features of the single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate embodiment of the present invention.

[0159] It should be noted that the above embodiments are illustrative of the present invention and not restrictive thereof, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In a claim, any reference sign between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

Claims

1. A detection method for the compatibility between coke and blast furnace burden, characterized in that, Applied to a detection system, the detection system includes a reduction furnace and a droplet furnace, and the method includes: Loading coke of a first mass and blast furnace burden of a second mass into the reduction furnace for a reduction test. During the reduction test, adjusting a first operating parameter of the reduction furnace so that the first operating parameter is the same as the operating parameter of the blast furnace lump zone. The first operating parameter includes a reduction atmosphere, a reduction heating rate, and a reduction gas flow rate; After the reduction test is completed, determining a third mass of the coke after the reduction reaction, as well as the iron element content, ferrous content, and a fourth mass of the blast furnace burden after the reduction reaction; Loading the coke after the reduction reaction and the blast furnace burden after the reduction reaction into the droplet furnace as samples, adjusting a second operating parameter of the droplet furnace so that the second operating parameter is the same as the operating parameter of the blast furnace softening and dripping zones, and obtaining the shrinkage rate, softening temperature, and pressure of the samples in the droplet furnace; the second operating parameter includes a droplet atmosphere, a droplet heating rate, and a droplet gas flow rate; Determining a first compatibility between the coke and the blast furnace burden under the lump zone according to the first mass, the second mass, the third mass, the fourth mass, the iron element content, and the ferrous content; Determining a second compatibility between the coke and the blast furnace burden under the softening and dripping zones according to the shrinkage rate, the softening temperature, and the pressure.

2. The detection method for the adaptability of coke and blast furnace burden according to claim 1, characterized in that, The adjusting the first operating parameter of the reduction furnace includes: Obtaining the temperature of the reduction furnace and controlling the reduction gas flow rate of the reduction furnace to a target flow rate; If the temperature of the reduction furnace is less than or equal to a preset first temperature threshold, controlling the reduction atmosphere of the reduction furnace to be air and the reduction heating rate to be a first rate; If the temperature of the reduction furnace is greater than the first temperature threshold and less than or equal to a preset second temperature threshold, controlling the reduction atmosphere to be a first mixed gas and the reduction heating rate to be a second rate; wherein, the first mixed gas includes nitrogen, carbon monoxide, and carbon dioxide, and the volume ratio of nitrogen, carbon monoxide, and carbon dioxide is 2:1:1; If the temperature of the reduction furnace is greater than the second temperature threshold and less than a preset third temperature threshold, controlling the reduction atmosphere to be a second mixed gas and the reduction heating rate to be the second rate; wherein, the second mixed gas includes nitrogen, carbon monoxide, and carbon dioxide, and the volume ratio of nitrogen, carbon monoxide, and carbon dioxide is 10:7:3; If the temperature of the reduction furnace is equal to the third temperature threshold, controlling the reduction atmosphere to be the first mixed gas, the reduction heating rate to be 0, and starting from when the reduction heating rate is 0, after a set duration, controlling the reduction heating rate to be a third rate; If the temperature of the reduction furnace is greater than the third temperature threshold and less than or equal to a preset fourth temperature threshold, controlling the reduction atmosphere to be the first mixed gas and the reduction heating rate to be the third rate; If the temperature of the reduction furnace is greater than the fourth temperature threshold, control the reducing atmosphere to be the nitrogen gas and stop heating; If the temperature of the reduction furnace drops to a preset fifth temperature threshold, control the end of the reduction test; Among them, the fifth temperature threshold, the first temperature threshold, the second temperature threshold, the third temperature threshold and the fourth temperature threshold increase in sequence.

3. The detection method for the adaptability of coke and blast furnace burden according to claim 2, characterized in that, The fifth temperature threshold is room temperature, the first temperature threshold is 200 °C, the second temperature threshold is 650 °C, the third temperature threshold is 900 °C, and the fourth temperature threshold is 1100 °C; the first rate is 20 °C / min, the second rate is 10 °C / min, and the third rate is 2 °C / min; the target flow rate is 15 L / min, and the set duration is 2 hours.

4. The detection method for the adaptability of coke and blast furnace burden according to claim 1, wherein Adjusting the second operating parameter of the droplet furnace includes: Obtain the temperature of the droplet furnace; If the temperature of the droplet furnace is less than a preset sixth temperature threshold, control the droplet atmosphere of the droplet furnace to be nitrogen gas, the droplet heating rate to be the fourth rate, and the droplet gas flow rate to be the first flow rate; If the temperature of the droplet furnace is greater than or equal to the sixth temperature threshold and less than a preset seventh temperature threshold, control the droplet atmosphere to be the nitrogen gas, the droplet heating rate to be the fifth rate, and the droplet gas flow rate to be the second flow rate; If the temperature of the droplet furnace is greater than or equal to the seventh temperature threshold and less than a preset eighth temperature threshold, control the droplet atmosphere to be a third mixed gas, the droplet heating rate to be the sixth rate, and the droplet gas flow rate to be the third flow rate; where the third mixed gas includes nitrogen gas and carbon monoxide, and the volume ratio of the nitrogen gas to the carbon monoxide is 1:1; If the temperature of the droplet furnace is greater than or equal to the eighth temperature threshold, control the droplet atmosphere to be the nitrogen gas, the droplet gas flow rate to be the fourth flow rate, and stop heating.

5. The detection method for the adaptability of coke and blast furnace burden according to claim 4, characterized in that The sixth temperature threshold is 900 °C, the seventh temperature threshold is 1100 °C, and the eighth temperature threshold is 1600 °C; the first flow rate is 6 L / min, the second flow rate, the third flow rate and the fourth flow rate are 10 L / min; the fourth rate is 10 °C / min, the fifth rate is 2 °C / min, and the sixth rate is 5 °C / min.

6. The detection method for the adaptability of coke and blast furnace burden according to claim 1, characterized in that Determining the first compatibility of the coke and the blast furnace burden under the burden zone according to the first mass, the second mass, the third mass, the fourth mass, the iron element content and the ferrous content includes: Calculate the difference between the first mass and the second mass; Calculate the reducibility of the blast furnace burden according to the third mass, the fourth mass, the iron element content and the ferrous content; Determine the first compatibility of the coke and the blast furnace burden under the burden zone according to the difference and the reducibility.

7. The detection method for the adaptability of coke and blast furnace burden according to claim 1, characterized in that, The pressure includes the top pressure and the bottom pressure. Determining the second compatibility of the coke and the blast furnace burden under the softening zone and the dripping zone according to the shrinkage rate, the softening temperature and the pressure includes: Determine the softening start temperature and the softening end temperature from the softening temperature, and calculate the temperature difference between the softening start temperature and the softening end temperature to obtain the softening range; Determine the softening temperature corresponding to the maximum value of the pressure difference between the top pressure and the bottom pressure, which is the melting temperature; Determine the second compatibility between the coke and the blast furnace burden under the cohesive zone and the dripping zone according to the softening range and the melting temperature; Among them, the softening start temperature is the softening temperature corresponding to a shrinkage rate of 10%, and the softening end temperature is the softening temperature corresponding to a shrinkage rate of 40%.

8. A detection device for the adaptability of coke and blast furnace burden, characterized in that, Applied to a detection system, the detection system includes a reduction furnace and a drip furnace, and the device includes: A reduction module for loading a first mass of coke and a second mass of blast furnace burden into the reduction furnace for a reduction test. During the reduction test, adjust the first operating parameters of the reduction furnace so that the first operating parameters are the same as those of the blast furnace lump zone. The first operating parameters include the reduction atmosphere, the reduction heating rate, and the reduction gas flow rate; A first determination module for determining the third mass of the coke after the reduction reaction, as well as the iron element content, the ferrous content, and the fourth mass of the blast furnace burden after the reduction reaction after the reduction test; A drip module for loading the coke after the reduction reaction and the blast furnace burden after the reduction reaction as samples into the drip furnace, adjusting the second operating parameters of the drip furnace so that the second operating parameters are the same as those of the blast furnace cohesive zone and the dripping zone, and obtaining the shrinkage rate, the softening temperature, and the pressure of the samples in the drip furnace; the second operating parameters include the drip atmosphere, the drip heating rate, and the drip gas flow rate; A second determination module for determining the first compatibility between the coke and the blast furnace burden under the lump zone according to the first mass, the second mass, the third mass, the fourth mass, the iron element content, and the ferrous content; A third determination module for determining the second compatibility between the coke and the blast furnace burden under the cohesive zone and the dripping zone according to the shrinkage rate, the softening temperature, and the pressure.

9. An electronic device, characterized in that, Include: A memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to execute the method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the method according to any one of claims 1-7.

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