KR970002100A

KR970002100A - Combustion control method and apparatus for waste incinerator

Info

Publication number: KR970002100A
Application number: KR1019960019545A
Authority: KR
Inventors: 사토시 후지이; 유이치 노가미
Original assignee: 미요시 슌키치; 닛폰고칸 가부시키가이샤
Priority date: 1995-06-02
Filing date: 1996-06-01
Publication date: 1997-01-24
Also published as: KR100194446B1; TW305917B

Abstract

본 발명은 소각로내의 O₂농도의 변동을 억제하고, 또한 연소배가스중의 CO농도, NO_x농도를 저감할 수 있도록 제어할 수 있는 쓰레기소각로의 연소제어방법 및 그 장치에 관한 것으로서, 쓰레기소각로(1)는 소각로출구(4)에 보일러(5)를 구비하고 로내온도를 계측하는 로내온도센서(13), 배가스O₂농도를 계측하는 O₂농도센서(18), NO_x농도를 검출하는 NO_x농도센서(22), CO농도를 계측하는 CO 농도센서(24)를 구비하고, 그들 출력이 각각 로내온도계(14), 로배출O₂농도계(19), 로배출NO_x농도계(23), 로배출 CO농도계(25)에 각각 입력되고 이들 계측값이 컴퓨터(21)의 2차연소공기량제어수단(20)에 공급되며, 그 2차공기량제어값을 기초로 하여 유력조절기구(11)를 개폐제어하여 2차연소공기량이 조작되어 로내온도 및 로배출 O₂농도가 일정하게 되도록 제어되고 주연소계는 보일러(5)의 증기량을 증기유량계(12)에 의하여 계측하며 1차연소공기제어수단(16)에 의하여 유력조절기구(9)를 개폐제어하여 발열량을 제어하고 O₂농도, CO 농도, NO_x농도를 제어하는 것을 특징으로 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion control method and apparatus for a waste incinerator, which can suppress fluctuations in O ₂ concentration in an incinerator and to reduce CO concentration and NO _x concentration in combustion flue gas. 1) is equipped with a boiler (5) at the incinerator outlet (4), the furnace temperature sensor 13 for measuring the furnace temperature, the O ₂ concentration sensor 18 for measuring the exhaust gas O ₂ concentration, NO _x to detect the concentration _x concentration sensor 22 and CO concentration sensor 24 for measuring CO concentration, and their outputs are a furnace thermometer 14, a furnace exhaust O ₂ concentration meter 19, a furnace exhaust NO _x concentration meter 23, These are respectively input to the furnace exhaust CO concentration meter 25, and these measured values are supplied to the secondary combustion air amount control means 20 of the computer 21, and the force regulating mechanism 11 is opened and closed based on the secondary air amount control value. the second combustion air amount control is operated and controlled so that a constant furnace temperature and the exhaust O ₂ concentration as the peripheral System is measured by the amount of steam in the boiler (5) to the steam flow meter 12, and first combustion air control means 16 influential adjustment mechanism 9 to open and close control for controlling the amount of heat generated and the O ₂ concentration, CO concentration by, NO _x concentration is controlled.

Description

Combustion control method and apparatus for waste incinerator

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 관련되는 쓰레기소각로의 연소제어방법 및 그 장치를 나타내는 개관도, 제2도는 본 발명에 관련되는 연소제어방법의 제어블록도.1 is an overview diagram showing a combustion control method and apparatus thereof of a waste incinerator according to the present invention, and FIG. 2 is a control block diagram of a combustion control method according to the present invention.

Claims

The primary combustion air supply means for supplying the primary combustion air to the waste incinerator, the secondary combustion air supply means for supplying the secondary combustion air to the waste incinerator, and the primary combustion air quantity supplied to the waste incinerator from the primary combustion air supply means for the combustion load Therefore, the control means for operation, the first measuring means for measuring the temperature in the waste incinerator, the second measuring means for measuring the O ₂ concentration in the combustion flue gas of the waste incinerator, and the CO concentration in the combustion flue gas of the waste incinerator are measured. The third measurement means, the fourth measurement means for measuring the NO _x concentration in the combustion flue gas of the waste incinerator, and the non-linear control for manipulating the secondary combustion air amount according to the measured value by the fourth measurement means from the first measurement means. A combustion control apparatus for a waste incinerator, comprising a means.

The combustion control apparatus of claim 1, wherein the nonlinear control means comprises a purge control means.

A process of manipulating the primary combustion air volume according to the calorific value of the amount of waste put into the waste incinerator at a given time, measuring the in-house temperature of the waste incinerator, O ₂ concentration in the combustion flue gas, CO concentration, and NO _x concentration; And a step of manipulating the secondary combustion air amount by nonlinear control means based on the measured value of the above measurement step.

4. The combustion control method according to claim 3, wherein the primary combustion air amount is operated by feedforward control.

4. The combustion control method according to claim 3, wherein the primary combustion air amount is operated by feedback control.

4. The combustion control method according to claim 3, wherein the nonlinear control means comprises a purge control means.

Preparing the primary combustion air supply means for supplying the primary combustion air to the waste incinerator and the secondary combustion air supply means for supplying the secondary combustion air, and the amount of primary combustion air supplied to the waste incinerator from the primary combustion air supply means Therefore, the secondary combustion air amount is determined by nonlinear control means based on the operating process, the furnace temperature of the waste incinerator, the O ₂ concentration in the combustion flue gas, the CO concentration, and the NO _x concentration, and the measured values of the measurement process. Combustion control method of a waste incinerator, characterized in that consisting of a step of operating.

8. A combustion control method according to claim 7, wherein said nonlinear control means comprises a purge control means.

※ Note: The disclosure is based on the initial application.