Automatic heating optimization system for coke oven

An automatic heating and coke oven technology, which is applied to the heating of coke ovens, coke ovens, and combustible gas heating coke ovens. The phenomenon of rising NOX in coke oven flue gas, the effect of stabilizing and improving coke quality, and eliminating black smoke from coke pushing

Active Publication Date: 2019-02-26
NANJING HUYOU METALLURGY MACHINERY MFG
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Problems solved by technology

There are many problems in this production control mode: frequent personnel flow, resulting in different levels of experience and level; incomplete information, no data support, only estimates and rough adjustments; relying on the temperature of the fire path twice a shift Testing often makes the coke oven heating control lag behind, resulting in frequent coke oven heating control; the coke maturity of each carbonization chamber is unpredictable before the fur

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  • Automatic heating optimization system for coke oven
  • Automatic heating optimization system for coke oven
  • Automatic heating optimization system for coke oven

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Embodiment Construction

[0043] The coke oven automatic heating optimization system of the present invention will be further described below.

[0044] Coke oven automatic heating optimization system, including feed-forward control system and feed-back control system.

[0045] The feed-forward control system is used to collect real-time data of coke oven production, calculate the set value of the control parameter through the energy prediction model, and send the set value to the coke oven control system to realize feed-forward rough adjustment; the said The real-time data of coke oven production includes gas pressure, flow, calorific value, temperature, mixed coal moisture, heating gas composition, and coke pushing operation plan.

[0046] The energy prediction model is:

[0047] Q 需 =f 1 (G,W,V);

[0048] Q 供 =f 2 (q,q,t);

[0049] T 1 =f3 (Q 需 , Q 供 );

[0050] Among them, Q is heat, G is coal loading, W is moisture, V is volatile matter, q is gas calorific value, Q is gas flow rate, t is...

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Abstract

The invention provides an automatic heating optimization system for a coke oven. The automatic heating optimization system comprises a feedforward control system and a feedback control system, whereinthe feedforward control system is used for acquiring real-time production data of the coke oven, calculating a set value of a control parameter through an energy forecasting model, and sending the set value to a coke oven control system to realize feedforward rough adjustment; the feedback system comprises a fire fall monitoring system, a mean flue temperature detection system and a waste gas oxygen content detection system, calculates a set value of a control parameter through a fuzzy control model, and sends the set value to the coke oven control system to realize feedback fine adjustment.The automatic heating optimization system for the coke oven calculates a set value of heated coal gas flow of the coke oven by acquiring and analyzing various condition factor variables generated by coking, and instructs heating control of the coke oven and optimizes the heating control, thereby realizing automatic control of uniform heating of the coke oven.

Description

technical field [0001] The invention belongs to the technical field of coke oven automation, in particular to an automatic heating optimization system for coke ovens. Background technique [0002] China is the world's largest country in the coking industry, with an annual coke output of more than 440 million tons, but the control and management level of most coke ovens in China is still at the basic automation level, that is, the heating of coke ovens basically adopts instrumentation and control systems, and can only rely on equipment. Experienced coke oven fire adjustment technicians set the heating system parameters based on experience after manual timing temperature measurement, and the instrument control system stabilizes the heating parameters. [0003] During the coking production process of the coke oven, when the production environment and production conditions change, the heating system and the heating gas flow rate need to be fine-tuned. The traditional coke oven h...

Claims

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Application Information

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IPC IPC(8): C10B21/10
CPCC10B21/10
Inventor 武良辰武兆乾
Owner NANJING HUYOU METALLURGY MACHINERY MFG
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