Real-time detection device and method for domestic waste components in an incinerator

Patent metadata

Field	Value
Publication number	US-11333609-B2
Application number	US-201916494384-A
Country	US
Kind code	B2
Filing date	Jan 31, 2019
Priority date	Feb 12, 2018
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

The present invention relates to a real-time detection device for municipal solid waste components in an incinerator. The real-time detection device includes: an optical fiber sensor, which faces combustion flame of municipal solid waste combustion region through an observation hole in the incinerator; a spectrometer, which is used for receiving optical signal of the optical fiber sensor; an industrial personal computer, which is used for receiving data of the spectrometer and outputting the municipal solid waste components according to a municipal solid waste component detection program; the municipal solid waste component detection program obtains combustion flame spectral information of municipal solid waste in the incinerator by utilizing the optical fiber sensor and the spectrometer, and detects the municipal solid waste components in real time based on combustion flame spectrum of a single waste component. The present invention further relates to a real-time detection method for municipal solid waste components in an incinerator. Compared with manual classified sampling and detection, the device and method provided by the present invention have the advantages of high efficiency, rapidness, accuracy, capability of being updated in real time; and can realize stable combustion of the municipal solid waste in the incinerator, and reduce emission of pollutants and realize efficient and clean utilization of the municipal solid waste.

First claim

The invention claimed is:

1. A real-time detection device for municipal solid waste components in an incinerator, wherein, the real-time detection device comprises:
an optical fiber sensor, which faces a combustion flame of a municipal solid waste combustion region through an observation hole in the incinerator;
a spectrometer, which is used for receiving an optical signal of the optical fiber sensor;
an industrial personal computer, which is used for receiving data of the spectrometer and outputting the municipal solid waste components according to a municipal solid waste component detection program;
the municipal solid waste component detection program comprises the following process:
(1) collecting combustion flame spectral information of the municipal solid waste components at a common temperature in the incinerator and storing the information in an information base;
(2) collecting combustion flame spectral information of mixed municipal solid waste through the spectrometer;
(3) calculating the flame temperature T according to the combustion flame spectral information of mixed municipal solid waste collected in Step (2);
(4) setting the number of single component of the municipal solid waste to be detected as N, using X i to represent the proportion of component i, i=1˜N, then the proportion of each component is represented as matrix

[

X
1

⋮

X
N

]

;

retrieving the combustion flame spectral information of each single component at flame temperature T calculated by Step
(3)

[

I

λ
1

,
T
,

E
1

…

I

λ
1

,
T
,

E
N

⋮

⋱

⋮

I

λ
i

,
T
,

E
1

…

I

λ
i

,
T
,

E
N

]

,

and the equation is obtained:

[

I

λ
1

,
T
,

E
1

…

I

λ
1

,
T
,

E
N

⋮

⋱

⋮

I

λ
i

,
T
,

E
1

…

I

λ
i

,
T
,

E
N

]

Assignees

• Univ Zhejiang

Inventors

• Huang Qunxing
• Wang Yafei
• Wang Shoukang
• Chi Yong
• Li Xiaodong
• Wang Fei
• Lu Shengyong
• Yan Jianhua

Classifications

• F23G2207/1015

  Heat pattern monitoring of flames · CPC title

• G01N21/72 Primary

  using flame burners · CPC title

• F23G5/50

  Control or safety arrangements · CPC title

• G01J3/0218

  using optical fibers · CPC title

• G01N21/71 Primary

  thermally excited · CPC title