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Coke cake center temperature detection method and system

A core temperature and detection method technology, applied in the field of coking, can solve problems such as the inability to accurately detect the core temperature of coke cake in real time

Active Publication Date: 2021-03-19
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The method and system for detecting the center temperature of the coke cake provided by the present invention solve the technical problem that the existing technology cannot accurately detect the center temperature of the coke cake in real time

Method used

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  • Coke cake center temperature detection method and system
  • Coke cake center temperature detection method and system
  • Coke cake center temperature detection method and system

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Experimental program
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Effect test

Embodiment 1

[0056] refer to figure 1 , the coke cake center temperature detection method that the embodiment of the present invention provides, comprises:

[0057] Step S101, obtaining the temperature at the bottom of the flue;

[0058] Step S102, based on the temperature at the bottom of the flue, according to the radiation heat transfer relationship between the combustion gas in the standard flue and the carbonization chamber-combustion chamber partition, construct a longitudinal temperature distribution model on the partition wall of the standard vertical flue in the combustion chamber;

[0059] Step S103, based on the longitudinal temperature distribution model of the combustion chamber standard flue partition wall surface, and according to the carbonization chamber-combustion chamber partition wall heat conduction equation, the coke cake center temperature is obtained.

[0060] The coke cake center temperature detection method provided by the embodiment of the present invention, by ...

Embodiment 2

[0066] refer to figure 2 , the coke cake center temperature detection method provided by Embodiment 2 of the present invention, comprising:

[0067] Step S201, select the fire viewing hole on the top of the standard vertical flue of the combustion chamber as the detection point on the coke oven machine side and the coke side, and acquire the infrared image of the viewing hole including the bottom area of ​​the standard flue.

[0068] In step S202, the temperature at the bottom of the fire path is obtained by looking at the infrared image of the fire hole according to the standard fire path.

[0069] Specifically, the embodiment of the present invention proposes a detection idea different from previous methods based on the coupling relationship between the center temperature of the coke cake and other production parameters. Specific steps are as follows:

[0070] Step1: Determine the coupling variable of the core temperature of the coke cake:

[0071] The production process...

Embodiment 3

[0236] The specific embodiment of the present invention will be further described below in conjunction with specific examples. In Example 3, a JN60 coke oven of a steel plant is used as an experimental platform, and the proposed detection method is applied to the detection of the temperature of the coke cake center. This case obtained the production data of the JN60 coke oven of the plant from June 2019 to September 2019, including the measured temperature on the machine side and the coke side, coking time, flue suction, air excess coefficient, coke oven gas flow, blast furnace gas flow. These data can be used to verify the test results.

[0237] Since the current main detection method of coke cake center temperature is still the "intubation method", there is a lack of other efficient detection methods, and it is limited by the detection cost and detection cycle, as well as the coke pushing sequence, furnace maintenance, etc. Due to the consideration of the coke oven producti...

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Abstract

The invention discloses a coke cake center temperature detection method and system. According to the method, the bottom temperature of a flame path is obtained, and based on the bottom temperature ofthe flame path, a combustion chamber standard vertical flame path partition wall surface longitudinal temperature distribution model and a combustion chamber standard vertical flame path partition wall surface longitudinal temperature distribution model are constructed according to the radiant heat transfer relation between combustion gas in a standard flame path and a carbonization chamber-combustion chamber partition wall , the coke cake center temperature is obtained according to a carbonization chamber combustion chamber partition wall heat conduction equation, and the technical problem that the coke cake center temperature cannot be accurately detected in real time in the prior art is solved. Starting from a multivariable coupling relationship existing in a coke oven thermal process,the bottom temperature of a standard flame path is used as a coupling variable of the center temperature of a coke cake, the characteristics of multi-factor coupling and multivariable participation ofcoke production are combined, and starting from a temperature coupling relationship between a carbonization chamber and a combustion chamber, the center temperature of the coke cake is indirectly obtained through the bottom temperature of the flame path, and real-time accurate detection of the center temperature of the coke cake is achieved.

Description

technical field [0001] The invention mainly relates to the technical field of coking, in particular to a coke cake center temperature detection method and system. Background technique [0002] The coke oven is the core equipment for coke production. A modern coke oven consists of a carbonization chamber, a combustion chamber, a regenerator, a chute area, a roof, a foundation, and a flue. A coke oven is composed of dozens of carbonization chambers and combustion chambers arranged alternately. The combustion chamber is composed of several vertical fire passages arranged horizontally. Directly above the position between two adjacent regenerators. The coke production process is a complex industrial process that is intermittent in a single combustion chamber and continuous in the entire furnace, and is disturbed by various factors, and has the characteristics of large time delay, large inertia, strong nonlinearity, multi-factor coupling, and variable parameters. The principle ...

Claims

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Application Information

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IPC IPC(8): C10B45/00C10B41/00
CPCC10B41/00C10B45/00
Inventor 蒋朝辉蒋劲松潘冬桂卫华黄良
Owner CENT SOUTH UNIV
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