阅读说明：本技术 一种干熄焦焦炭烧损率的检测方法及装置 (Detection method and device for dry quenching coke burning loss rate ) 是由 徐荣广 关少奎 黄海龙 李东涛 王奇 王进刚 谢金平 曹贵杰 刘洋 马超 代鑫 于 2021-03-19 设计创作，主要内容包括：本发明涉及干熄焦技术领域,尤其涉及一种干熄焦焦炭烧损率的检测方法及装置,该方法包括：在预设时间内,检测第一气体的碳化合物增量、第二气体的碳化合物总量、第三气体的碳化合物总量和第四气体的碳化合物总量；其中,第一气体为通过循环风机的气体,第二气体为通过放散气口排出的气体,第三气体为环境除尘装置排出的气体,第四气体为导入所述干熄焦炉的气体；根据第一气体的碳化合物增量、第二气体的碳化合物总量、第三气体的碳化合物总量和第四气体的碳化合物总量,获得焦炭烧损率。本发明能实时检测干熄焦设备不同部位气体的碳化合物量,再根据检测到的碳化合物量,获得准确的焦炭烧损率,为有效控制焦炭烧损,提供快速可靠的依据。(The invention relates to the technical field of dry quenching, in particular to a method and a device for detecting the burning loss rate of dry quenching coke, wherein the method comprises the following steps: detecting the increment of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas within a preset time; the first gas is gas passing through a circulating fan, the second gas is gas discharged through a diffusion gas port, the third gas is gas discharged from an environment dust removal device, and the fourth gas is gas introduced into the dry quenching furnace; the coke burn-out rate is obtained based on the increase in carbon compounds of the first gas, the total carbon compounds of the second gas, the total carbon compounds of the third gas, and the total carbon compounds of the fourth gas. The invention can detect the carbon compound amount of gas at different parts of the dry quenching device in real time, and then obtain the accurate coke burning loss rate according to the detected carbon compound amount, thereby providing a quick and reliable basis for effectively controlling the coke burning loss.)

1. A detection method of dry quenching coke burning loss rate is applied to dry quenching equipment, and the dry quenching equipment comprises: the system comprises a dry quenching furnace, a circulating fan, an auxiliary economizer and an environmental dust removal device, wherein the auxiliary economizer is also provided with a gas discharge port; characterized in that the method comprises:

detecting the increment of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas within a preset time; the first gas is a gas passing through the circulating fan, the second gas is a gas discharged through the air discharge port, the third gas is a gas discharged from the environment dust removing device, and the fourth gas is a gas introduced into the dry quenching furnace;

and obtaining the coke burning loss rate according to the increment of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas.

2. The method of claim 1, wherein the detecting the increase in carbon compounds of the first gas comprises:

detecting, by a first detection device, a flow rate of the first gas, a first concentration value and a second concentration value of a carbon compound of the first gas; wherein the first detection device is arranged at a pipeline between the circulating fan and the auxiliary economizer;

and obtaining the increment of the carbon compound of the first gas according to the difference value of the first concentration value and the second concentration value and the flow rate of the first gas.

3. The method of claim 2, wherein said detecting the total amount of carbon compounds of the second gas comprises:

detecting, by a second detection device, a flow rate of the second gas; wherein the second detection device is arranged at the outlet of the environmental dust removal device;

detecting, by the first detection device, a concentration value of a carbon compound of the first gas per minute;

determining a mean value of the concentration values of the carbon compounds of the second gas according to the concentration values of the carbon compounds of the first gas per minute;

and obtaining the total amount of the carbon compounds of the second gas according to the average value of the concentration values of the carbon compounds of the second gas and the flow rate of the second gas.

4. The method of claim 3, wherein said detecting the total amount of carbon compounds of the third gas comprises:

detecting, by a third detecting device, a flow rate of the third gas and a concentration value of a carbon compound of the third gas per minute; wherein the third detection device is arranged at the air diffusing port;

and obtaining the total amount of the carbon compounds of the third gas according to the average value of the concentration values of the carbon compounds of the third gas and the flow rate of the third gas.

5. The method of claim 4, wherein said detecting the total amount of carbon compounds of the fourth gas comprises:

detecting, by a fourth detecting device, a flow rate of the fourth gas and a concentration value of a carbon compound of the fourth gas per minute; the fourth detection device is arranged at an air inlet of the dry quenching furnace;

and obtaining the total amount of the carbon compounds of the fourth gas according to the average value of the concentration values of the carbon compounds of the fourth gas and the flow rate of the fourth gas.

6. The method of claim 5, wherein the carbon compound of the first gas, the carbon compound of the second gas, the carbon compound of the third gas, and the carbon compound of the fourth gas each comprise: carbon monoxide and carbon dioxide.

7. The method of any one of claims 1 to 6, wherein obtaining the char burnout ratio based on the incremental carbon compound of the first gas, the total carbon compound of the second gas, the total carbon compound of the third gas, and the total carbon compound of the fourth gas comprises:

obtaining the coke burn-out rate based on the equation CM ═ S1+ S2+ S3-S4) × CQ/(CP × M);

wherein CM is a coke burnout rate, S1 is a carbon compound increment of the first gas, S2 is a total carbon compound amount of the second gas, S3 is a total carbon compound amount of the third gas, S4 is a total carbon compound amount of the fourth gas, CQ is a relative molecular mass of carbon, CP is a carbon element content in coke, and M is a molar volume of the carbon compound gas.

8. A detection device for dry quenching coke burning loss rate is applied to dry quenching equipment, and the dry quenching equipment comprises: the system comprises a dry quenching furnace, a circulating fan, an auxiliary economizer and an environmental dust removal device, wherein the auxiliary economizer is also provided with a gas discharge port; characterized in that the device comprises:

the detection module is used for detecting the increment of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas in preset time; the first gas is a gas passing through the circulating fan, the second gas is a gas discharged through the air discharge port, the third gas is a gas discharged from the environment dust removing device, and the fourth gas is a gas introduced into the dry quenching furnace;

and the output module is used for calculating the increment of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas to obtain the coke burning loss rate.

9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method steps of any of claims 1-7 when executing the program.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of dry quenching, in particular to a method and a device for detecting the burning loss rate of dry quenching coke.

Background

Since the introduction of the dry quenching technology in China in the 80 s of the 20 th century, great achievements in the aspects of digestion and absorption and technical upgrading are achieved, and part of technical indexes reach the international advanced level. Up to now, the coke dry quenching device which is put into production in China is close to 300 sets, and a series of coke dry quenching devices with different coke processing capacities are formed, so that the requirements of different types of coking production enterprises can be met.

In the charging process of the dry quenching process flow, air (containing certain moisture) enters the dry quenching furnace along with coke and is incompletely reacted with the coke, so that the coke burning loss phenomenon is caused, and carbon monoxide CO and a small amount of hydrogen H are generated₂(ii) a Meanwhile, the coke can release a small amount of residual volatile components in the high-temperature area of the coke dry quenching furnace, and the main component of the coke is H₂. Over time, CO and H in the recycle gas₂The concentration increases with it, which may present an explosion hazard if its explosive limit is reached. Therefore, it is necessary to introduce air or nitrogen into the annular flue of the dry quenching furnace to reduce CO and H in the circulating gas₂And (4) concentration. In order to keep the system pressure stable, part of the circulating gas is discharged at the secondary economizer. The coke burning reaction in the coke dry quenching furnace is mainly the reaction of water vapor and carbon dioxide in the circulating gas and coke. The burning loss of the coke not only causes the increase of ash in the coke; because the coke contains certain sulfur, the burning loss of the coke can also generate sulfide. In order to control the production of sulfides in the dry quenching process from the source, the basis needs to be provided by calculating the coke burning loss rate.

At present, in the detection method aiming at the coke burning loss rate, some methods cannot obtain the coke burning loss amount in real time based on ash balance and heat balance; some methods are only based on the amount of intake air, and the accuracy is not high.

Therefore, how to accurately calculate the coke burning loss rate is a technical problem to be solved urgently at present.

Disclosure of Invention

The embodiment of the application provides a method and a device for detecting the coke burning loss rate of dry quenching coke, solves the technical problem of how to accurately calculate the coke burning loss rate in the prior art, and achieves the technical effects of acquiring the coke burning loss amount in real time and accurately calculating the coke burning loss rate.

In a first aspect, an embodiment of the present invention provides a method for detecting a coke burn out rate of a coke dry quenching device, where the coke dry quenching device includes: the system comprises a dry quenching furnace, a circulating fan, an auxiliary economizer and an environmental dust removal device, wherein the auxiliary economizer is also provided with a gas discharge port; the method comprises the following steps:

detecting the increment of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas within a preset time; the first gas is a gas passing through the circulating fan, the second gas is a gas discharged through the air discharge port, the third gas is a gas discharged from the environment dust removing device, and the fourth gas is a gas introduced into the dry quenching furnace;

and obtaining the coke burning loss rate according to the increment of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas.

Preferably, the detecting the increase in carbon compounds of the first gas includes:

detecting, by a first detection device, a flow rate of the first gas, a first concentration value and a second concentration value of a carbon compound of the first gas; wherein the first detection device is arranged at a pipeline between the circulating fan and the auxiliary economizer;

and obtaining the increment of the carbon compound of the first gas according to the difference value of the first concentration value and the second concentration value and the flow rate of the first gas.

Preferably, the detecting the total amount of carbon compounds in the second gas includes:

detecting, by a second detection device, a flow rate of the second gas; wherein the second detection device is arranged at the outlet of the environmental dust removal device;

detecting, by the first detection device, a concentration value of a carbon compound of the first gas per minute;

determining a mean value of the concentration values of the carbon compounds of the second gas according to the concentration values of the carbon compounds of the first gas per minute;

and obtaining the total amount of the carbon compounds of the second gas according to the average value of the concentration values of the carbon compounds of the second gas and the flow rate of the second gas.

Preferably, the detecting the total amount of carbon compounds in the third gas includes:

detecting, by a third detecting device, a flow rate of the third gas and a concentration value of a carbon compound of the third gas per minute; wherein the third detection device is arranged at the air diffusing port;

and obtaining the total amount of the carbon compounds of the third gas according to the average value of the concentration values of the carbon compounds of the third gas and the flow rate of the third gas.

Preferably, the detecting the total amount of carbon compounds in the fourth gas includes:

detecting, by a fourth detecting device, a flow rate of the fourth gas and a concentration value of a carbon compound of the fourth gas per minute; the fourth detection device is arranged at an air inlet of the dry quenching furnace;

and obtaining the total amount of the carbon compounds of the fourth gas according to the average value of the concentration values of the carbon compounds of the fourth gas and the flow rate of the fourth gas.

Preferably, the carbon compound of the first gas, the carbon compound of the second gas, the carbon compound of the third gas, and the carbon compound of the fourth gas each include: carbon monoxide and carbon dioxide.

Preferably, the obtaining of the coke burnout rate according to the increase in carbon compounds of the first gas, the total carbon compounds of the second gas, the total carbon compounds of the third gas, and the total carbon compounds of the fourth gas includes:

obtaining the coke burn-out rate based on the equation CM ═ S1+ S2+ S3-S4) × CQ/(CP × M);

wherein CM is a coke burnout rate, S1 is a carbon compound increment of the first gas, S2 is a total carbon compound amount of the second gas, S3 is a total carbon compound amount of the third gas, S4 is a total carbon compound amount of the fourth gas, CQ is a relative molecular mass of carbon, CP is a carbon element content in coke, and M is a molar volume of the carbon compound gas.

Based on the same inventive concept, in a second aspect, the invention also provides a device for detecting the burning loss rate of coke for dry quenching, which is applied to a dry quenching device, wherein the dry quenching device comprises: the system comprises a dry quenching furnace, a circulating fan, an auxiliary economizer and an environmental dust removal device, wherein the auxiliary economizer is also provided with a gas discharge port; the device comprises:

the detection module is used for detecting the increment of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas in preset time; the first gas is a gas passing through the circulating fan, the second gas is a gas discharged through the air discharge port, the third gas is a gas discharged from the environment dust removing device, and the fourth gas is a gas introduced into the dry quenching furnace;

and the output module is used for calculating the increment of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas to obtain the coke burning loss rate.

Based on the same inventive concept, in a third aspect, the present invention provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the security protection method of the electronic device when executing the program.

Based on the same inventive concept, in a fourth aspect, the present invention provides a computer-readable storage medium having stored thereon a computer program, which when executed by a processor, performs the steps of a method for securing an electronic device.

One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

the invention provides a method for detecting the coke burning loss rate of dry quenching coke, which respectively detects the carbon compound increment of a first gas, the carbon compound total amount of a second gas, the carbon compound total amount of a third gas and the carbon compound total amount of a fourth gas in real time, and then calculates the four detected data to obtain the coke burning loss rate. The first gas is the gas passing through the circulating fan, the second gas is the gas discharged through the diffusion gas port of the auxiliary economizer, the third gas is the gas discharged from the environment dust removal device, and the fourth gas is the gas introduced into the dry quenching furnace. Therefore, the embodiment can not only detect the carbon compound amount of the gas at different parts of the dry quenching device in real time, but also can calculate according to the detected carbon compound amount to obtain the accurate coke burning loss rate, thereby providing a quick and reliable basis for effectively controlling the coke burning loss. Therefore, the technical problem of how to accurately calculate the coke burning loss rate is solved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic flow chart illustrating the steps of a method for detecting the rate of coke burn of dry quenched coke in an embodiment of the invention;

FIG. 2 shows a schematic structural diagram of a dry quenching apparatus in an embodiment of the invention;

FIG. 3 shows a schematic representation of the carbon balance in a dry quench gas system in an embodiment of the invention;

FIG. 4 shows a block schematic diagram of a dry quenched coke burn rate detection apparatus in an embodiment of the invention;

fig. 5 shows a schematic structural diagram of a computer device in an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Example one

The first embodiment of the present invention provides a method for detecting a dry quenching coke burning loss rate, as shown in fig. 1, including:

s101, detecting the increment of the carbon compound of the first gas, the total amount of the carbon compound of the second gas, the total amount of the carbon compound of the third gas and the total amount of the carbon compound of the fourth gas in a preset time; the first gas is a gas passing through the circulating fan, the second gas is a gas discharged through the air discharge port, the third gas is a gas discharged from the environment dust removing device, and the fourth gas is a gas introduced into the dry quenching furnace;

and S102, obtaining the coke burning loss rate according to the increase of the carbon compounds of the first gas, the total amount of the carbon compounds of the second gas, the total amount of the carbon compounds of the third gas and the total amount of the carbon compounds of the fourth gas.

It should be noted that the method for detecting the coke burn out rate of the dry quenching coke is applied to a dry quenching device, as shown in fig. 2, the dry quenching device includes: the dry quenching furnace 201, the gravity dust collector 202, the boiler 203, the cyclone dust collector 204, the circulating fan 205, the auxiliary economizer 206 and the environment dust removing device 207 are connected in sequence, and the auxiliary economizer 206 is also provided with a gas discharging port. Wherein the secondary economizer 206 can be replaced with a feedwater preheater during the dry quenching process. The dry quenching process flow is as follows:

charging the red coke into the dry quenching furnace 201, blowing cooled inert gas through the bottom of the dry quenching furnace 201 by a circulating fan 205, directly performing heat exchange between the red coke and the inert gas in the dry quenching furnace, and discharging the cooled coke from the bottom of the dry quenching furnace 201. Then, the dry quenching furnace 201 discharges hot inert gas, and the hot inert gas enters the boiler 203 for heat exchange and temperature reduction after being dedusted by the gravity deduster 202 (i.e. primary deduster). After the inert gas is discharged from the boiler 203, the inert gas is sequentially cooled by the cyclone 204 (i.e., secondary dust removal), the circulating fan 205 and the sub-economizer 206, so that the inert gas enters the dry quenching furnace 201 again for recycling.

In the dry quenching process, the smoke generated in the coke charging process, the coke discharging process, the air discharging port of the auxiliary economizer 206 and the like enters the environmental dust removal device 207 for dust removal and standard reaching, and then is discharged.

In this embodiment, the coke burnout rate is obtained by detecting the carbon compound increment of the first gas, the carbon compound total amount of the second gas, the carbon compound total amount of the third gas, and the carbon compound total amount of the fourth gas in real time, and then calculating the four detected data. The first gas is a gas passing through the circulation fan 205, the second gas is a gas discharged through the diffusion port of the sub-economizer 206, the third gas is a gas discharged from the environment dust-removing device 207, and the fourth gas is a gas introduced into the dry quenching furnace 201. Therefore, the embodiment can not only detect the carbon compound amount of the gas at different parts of the dry quenching device in real time, but also can calculate according to the detected carbon compound amount to obtain the accurate coke burning loss rate, thereby providing a quick and reliable basis for effectively controlling the coke burning loss.

In a specific implementation operation, the step S101 of detecting the total amount of the carbon compounds in the first gas includes:

detecting, by a first detection device 208, a flow rate of the first gas, a first concentration value and a second concentration value of a carbon compound of the first gas; wherein, the first detection device 208 is arranged at the pipeline between the circulating fan 205 and the secondary economizer 206;

and obtaining the increment of the carbon compound of the first gas according to the difference value of the first concentration value and the second concentration value and the flow rate of the first gas.

Specifically, the flow rate of the first gas, the first concentration value and the second concentration value of the carbon compound of the first gas are detected by the first detection device 208 provided at the pipe between the circulation fan 205 and the sub-economizer 206. The first concentration value is a concentration value of carbon compounds of the first gas measured in a first minute within a preset time, and the second concentration value is a concentration value of carbon compounds of the first gas measured in a last minute within the preset time. Then, the carbon compound increment of the first gas is calculated according to the difference between the first concentration value and the second concentration value and the flow rate of the first gas.

In a specific implementation operation, the step S101 of detecting the total amount of the carbon compounds in the second gas includes:

detecting the flow rate of the second gas by the second detecting means 209; wherein the second detection device 209 is arranged at the outlet of the environmental dust removal device 207;

detecting a concentration value of the carbon compound of the first gas per minute by the first detecting means 208;

determining a mean value of the concentration values of the carbon compounds of the second gas according to the concentration values of the carbon compounds of the first gas per minute;

and obtaining the total amount of the carbon compounds of the second gas according to the average value of the concentration values of the carbon compounds of the second gas and the flow rate of the second gas.

Specifically, the flow rate of the second gas is detected by the second detection device 209 provided at the outlet of the environment dust removal device 207. The first detection device 208 detects the concentration value of the carbon compound of the first gas per minute for a predetermined time, and calculates a mean value of the concentration values of the carbon compound of the first gas, which is also the mean value of the concentration values of the carbon compound of the second gas. And obtaining the total amount of the carbon compounds of the second gas according to the average value of the concentration values of the carbon compounds of the second gas and the flow rate of the second gas.

In a specific implementation operation, the step S101 of detecting the total amount of the carbon compounds in the third gas includes:

detecting the flow rate of the third gas and the concentration value of the carbon compound of the third gas per minute by the third detecting device 210; wherein the third detection device 210 is arranged at the diffusing air port;

and obtaining the total amount of the carbon compounds of the third gas according to the average value of the concentration values of the carbon compounds of the third gas and the flow rate of the third gas.

Specifically, the flow rate of the third gas and the carbon compound concentration value of the third gas per minute for a preset time are detected by the third detecting means 210 provided at the diffuser port. And calculating the average value of the concentration values of the carbon compounds of the third gas per minute in preset time, and obtaining the total amount of the carbon compounds of the third gas according to the average value of the concentration values of the carbon compounds of the third gas and the flow rate of the third gas.

In a specific implementation operation, detecting the total amount of carbon compounds of the fourth gas in S101 includes:

detecting the flow rate of the fourth gas and the concentration value of the carbon compound of the fourth gas per minute by the fourth detection device 211; wherein, the fourth detection device 211 is arranged at the air inlet of the dry quenching furnace 201;

and obtaining the total carbon compound amount of the fourth gas according to the average value of the concentration values of the carbon compounds of the fourth gas and the flow rate of the fourth gas.

Specifically, the method of obtaining the total amount of carbon compounds of the fourth gas is the same as the method of obtaining the total amount of carbon compounds of the second gas or the total amount of carbon compounds of the third gas, and the description thereof is omitted. However, in practical use, the fourth gas is a gas introduced into the dry quenching furnace 201, that is, air, and since the carbon dioxide content in the air is 0.03%, carbon monoxide is hardly contained and the introduction amount is generally not more than 20000m³And/h, the total amount of carbon compounds in the fourth gas is ignored and may not be calculated.

Preferably, the detection device consists of a laser gas analyzer and a pore plate flowmeter, the laser gas analyzer can detect gas components in real time on line, and the pore plate flowmeter is used for measuring gas flow. The first detection device 208, the third detection device 210, and the fourth detection device 211 are all detection devices composed of a laser gas analyzer and an orifice plate flowmeter, and the second detection device 209 is an orifice plate flowmeter.

In a specific implementation operation, when step S102 is performed, the coke burn-out rate may be obtained based on the following equation (1):

CM＝(S1+S2+S3-S4)*CQ/(CP*M)………(1)

wherein CM is a coke burnout rate, S1 is a carbon compound increment of the first gas, S2 is a total carbon compound amount of the second gas, S3 is a total carbon compound amount of the third gas, S4 is a total carbon compound amount of the fourth gas, CQ is a relative molecular mass of carbon, CP is a carbon element content in the coke, and M is a molar volume of the carbon compound gas.

In this embodiment, the carbon compound of the first gas, the carbon compound of the second gas, the carbon compound of the third gas, and the carbon compound of the fourth gas are calculated according to the carbon balance in the coke dry quenching gas system, and all of them are: carbon monoxide and carbon dioxide.

According to the principle of carbon balance in a dry quenching gas system, as shown in fig. 3:

the total amount of carbon monoxide and carbon dioxide brought by coke burning loss

Carbon monoxide and carbon dioxide increase in the cycle gas (i.e. carbon compound increase of the first gas)

+ Total carbon monoxide and carbon dioxide in the conventional purge gas (i.e. Total carbon Compounds of the second gas)

+ Total amount of carbon monoxide and carbon dioxide in the ambient dedusting gas (i.e. Total amount of carbon compounds in the third gas)

The total amount of carbon monoxide and carbon dioxide in the introduced gas (i.e. the total amount of carbon compounds in the fourth gas)

Total amount of carbon monoxide and carbon dioxide in the air leaked into the system

The total amount of coke residual volatiles carbon monoxide and carbon dioxide.

The carbon dioxide content in the air is 0.03%, so that the air hardly contains carbon monoxide; the gas introduced is usually air, and the amount of gas introduced is generally not more than 20000m³H is used as the reference value. Therefore, the amount of air leaking into the dry quenching device is also small under normal conditions. The residual volatile matter of the mature coke is mainly hydrogen, and the content of carbon monoxide and carbon dioxide is very low. Therefore, the last three terms can be discarded, and the calculation method can be simplified as follows:

the total amount of carbon monoxide and carbon dioxide brought by coke burning loss

Carbon monoxide and carbon dioxide increase in the cycle gas (i.e. carbon compound increase of the first gas)

+ Total carbon monoxide and carbon dioxide in the conventional purge gas (i.e. Total carbon Compounds of the second gas)

+ the total amount of carbon monoxide and carbon dioxide (i.e. the total amount of carbon compounds in the third gas) in the ambient dust removal gas.

And, coke burningTotal amount of carbon monoxide and carbon dioxide lost (coke burning loss) carbon element content in coke/relative molecular mass of carbon (22.4 m)³In kmol). Wherein, 22.4m³Perkmol is 1000 moles of carbon compound gas volume. (Note: 22.4 is omitted from the following expressions for the sake of brevity.)

Therefore, the coke loss was equal to the relative molecular mass of carbon (increased amount of carbon monoxide and carbon dioxide in the recycle gas + total amount of carbon monoxide and carbon dioxide in the normal purge gas + total amount of carbon monoxide and carbon dioxide in the ambient dedusting gas)/(carbon element content in coke: 22.4).

To more clearly illustrate the above scheme, two specific examples are provided below:

at a certain time (within one minute), the flow rate of the first gas (i.e., the circulating gas) measured by the first detection device 208 is 180000m³H, carbon monoxide CO and carbon dioxide CO₂The sum of the concentrations was 20% and did not change within one minute. The flow rate of the second gas (conventional purge gas) measured by the second detecting means 209 was 9000m³H, CO and CO₂The sum of the concentrations is 20% as measured by the first detecting means 208; the flow rate of the environmental cleaning gas obtained by the third detecting device 210 is 180000m³H, and wherein CO and CO₂The sum of the concentrations is 0.32%. The coke burning loss at this time is:

coke loss, i.e., the increase in carbon compounds in the first gas (the increase in carbon monoxide and carbon dioxide in the recycle gas), the total carbon compounds in the second gas (the total carbon monoxide and carbon dioxide in the conventional purge gas), and the total carbon compounds in the third gas (the total carbon monoxide and carbon dioxide in the environmental dust-control gas)

＝(180000/60*0+9000/60*20％+180000/60*0.32％)/22.4*12/86％

＝39.6/22.4*12/0.86

＝24.67kg/min。

It should be noted that 86% is the content of carbon element in the coke.

For a certain period of time (ten minutes), the first gas (i.e., the circulating gas) is detected by the first detecting device 208) Has a flow rate of 180000m³H, CO and CO₂The sum of the concentrations had an initial value of 18% at the first minute and a final value of 19% at the last minute. The flow rate of the second gas (conventional purge gas) measured by the second detecting means 209 was 9000m³H, CO and CO₂The sum of the concentrations is measured by the first detection device 208, and the average value in the period of time is 18.5%; the flow rate of the third gas (environmental dedusting gas) obtained by the third detection device 210 is 70000m3/h, and CO therein₂The sum of the concentrations is 0.3 percent. The coke burning loss in the period is as follows:

coke loss, i.e., the increase in carbon compounds in the first gas (the increase in carbon monoxide and carbon dioxide in the recycle gas), the total carbon compounds in the second gas (the total carbon monoxide and carbon dioxide in the conventional purge gas), and the total carbon compounds in the third gas (the total carbon monoxide and carbon dioxide in the environmental dust-control gas)

＝[(180000/60*(19％-18％)+9000/60*10*18.5％+70000/60*10*0.3％)]/22.4*12/86％

＝342.5/22.4*12/0.86

＝213.4kg/10min。

One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

1. in the embodiment of the present application, the coke burnout rate is obtained by detecting the carbon compound increment of the first gas, the carbon compound total amount of the second gas, the carbon compound total amount of the third gas, and the carbon compound total amount of the fourth gas in real time, and then calculating the four detected data. The first gas is the gas passing through the circulating fan, the second gas is the gas discharged through the diffusion gas port of the auxiliary economizer, the third gas is the gas discharged from the environment dust removal device, and the fourth gas is the gas introduced into the dry quenching furnace. Therefore, the embodiment can not only detect the carbon compound amount of the gas at different parts of the dry quenching device in real time, but also can calculate according to the detected carbon compound amount to obtain the accurate coke burning loss rate, thereby providing a quick and reliable basis for effectively controlling the coke burning loss. Therefore, the technical problem of how to accurately calculate the coke burning loss rate is solved.

2. In the embodiment of the present application, a laser gas analyzer is used to detect the concentrations of carbon monoxide and carbon dioxide in the gas, and the laser gas analyzer is a spectral absorption technology that obtains the concentration of the gas by analyzing the selective absorption of the laser light by the gas. The difference between the semiconductor laser and the traditional infrared spectrum absorption technology is that the spectrum width of the semiconductor laser is far smaller than the broadening of a gas absorption spectrum line. Therefore, the laser gas analyzer has the advantages of field measurement, quick response (the adaptation time is less than 1 second), wide application range, high precision, high reliability, small maintenance amount and the like.

3. In the embodiment of the application, the orifice plate flowmeter is adopted, the standard orifice plate is matched with the multi-parameter differential pressure transmitter (or the differential pressure transmitter, the temperature transmitter and the pressure transmitter) to form the high-range-ratio differential pressure flow device, the flow of gas, steam, liquid and lead can be measured, and the orifice plate flowmeter has the advantages of simple structure, convenience in maintenance, stable performance and reliable data.

Example two

Based on the same inventive concept, a second embodiment of the present invention further provides a device for detecting a coke burn-out rate of dry-quenched coke, which is applied to a dry-quenched coke device, and the dry-quenched coke device includes: the system comprises a dry quenching furnace, a circulating fan, an auxiliary economizer and an environmental dust removal device, wherein the auxiliary economizer is also provided with a gas discharge port; as shown in fig. 4, the apparatus includes:

a detection module 301, configured to detect, within a preset time, an increment of a carbon compound of the first gas, a total amount of a carbon compound of the second gas, a total amount of a carbon compound of the third gas, and a total amount of a carbon compound of the fourth gas; the first gas is a gas passing through the circulating fan, the second gas is a gas discharged through the air discharge port, the third gas is a gas discharged from the environment dust removing device, and the fourth gas is a gas introduced into the dry quenching furnace;

and an output module 302, configured to calculate the increment of the carbon compound of the first gas, the total amount of the carbon compound of the second gas, the total amount of the carbon compound of the third gas, and the total amount of the carbon compound of the fourth gas, so as to obtain a coke burnout rate.

As an alternative embodiment, the detecting module 301 is further configured to:

detecting, by a first detection device, a flow rate of the first gas, a first concentration value and a second concentration value of a carbon compound of the first gas; wherein the first detection device is arranged at a pipeline between the circulating fan and the auxiliary economizer; and obtaining the increment of the carbon compound of the first gas according to the difference value of the first concentration value and the second concentration value and the flow rate of the first gas.

As an alternative embodiment, the detecting module 301 is further configured to:

detecting, by a second detection device, a flow rate of the second gas; wherein the second detection device is arranged at the outlet of the environmental dust removal device; detecting, by the first detection device, a concentration value of a carbon compound of the first gas per minute; determining a mean value of the concentration values of the carbon compounds of the second gas according to the concentration values of the carbon compounds of the first gas per minute; and obtaining the total amount of the carbon compounds of the second gas according to the average value of the concentration values of the carbon compounds of the second gas and the flow rate of the second gas.

As an alternative embodiment, the detecting module 301 is further configured to:

detecting, by a third detecting device, a flow rate of the third gas and a concentration value of a carbon compound of the third gas per minute; wherein the third detection device is arranged at the air diffusing port; and obtaining the total amount of the carbon compounds of the third gas according to the average value of the concentration values of the carbon compounds of the third gas and the flow rate of the third gas.

As an alternative embodiment, the detecting module 301 is further configured to:

detecting, by a fourth detecting device, a flow rate of the fourth gas and a concentration value of a carbon compound of the fourth gas per minute; the fourth detection device is arranged at an air inlet of the dry quenching furnace; and obtaining the total amount of the carbon compounds of the fourth gas according to the average value of the concentration values of the carbon compounds of the fourth gas and the flow rate of the fourth gas.

As an alternative embodiment, the carbon compound of the first gas, the carbon compound of the second gas, the carbon compound of the third gas, and the carbon compound of the fourth gas each include: carbon monoxide and carbon dioxide.

As an alternative embodiment, the output module 302 is used for obtaining the coke burnout rate based on the following equation:

CM＝(S1+S2+S3-S4)*CQ/(CP*M)；

wherein CM is a coke burnout rate, S1 is a carbon compound increment of the first gas, S2 is a total carbon compound amount of the second gas, S3 is a total carbon compound amount of the third gas, S4 is a total carbon compound amount of the fourth gas, CQ is a relative molecular mass of carbon, CP is a carbon element content in coke, and M is a molar volume of the carbon compound gas.

Since the device for detecting the dry quenched coke loss rate described in this embodiment is a device used for implementing the method for detecting the dry quenched coke loss rate in the first embodiment of this application, based on the method for detecting the dry quenched coke loss rate described in the first embodiment of this application, a person skilled in the art can understand a specific implementation manner and various variations of the device for detecting the dry quenched coke loss rate in this embodiment, so how to implement the method in the first embodiment of this application by the device for detecting the dry quenched coke loss rate is not described in detail here. The device used by those skilled in the art to implement the method for detecting the burn-out rate of the dry quenched coke in the first embodiment of the present application is within the protection scope of the present application.

EXAMPLE III

Based on the same inventive concept, the third embodiment of the present invention further provides a computer device, as shown in fig. 5, comprising a memory 404, a processor 402 and a computer program stored on the memory 404 and operable on the processor 402, wherein the processor 402 executes the program to implement the steps of any one of the above-mentioned methods for detecting the dry quenching coke burn-out rate.

Where in fig. 5 a bus architecture (represented by bus 400) is shown, bus 400 may include any number of interconnected buses and bridges, with bus 400 linking together various circuits including one or more processors, represented by processor 402, and memory, represented by memory 404. The bus 400 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 406 provides an interface between the bus 400 and the receiver 401 and transmitter 403. The receiver 401 and the transmitter 403 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 402 is responsible for managing the bus 400 and general processing, while the memory 404 may be used for storing data used by the processor 402 in performing operations.

Example four

Based on the same inventive concept, a fourth embodiment of the present invention also provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor, performs the steps of any one of the methods of detecting a dry quenched coke burn rate as described above.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.