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Method and system for predicating concentration of dioxins in waste incineration flue gas

A technology for dioxins and waste incineration, which is used in measuring devices, analyzing gas mixtures, instruments, etc., can solve the problems of poor real-time performance, long cycle, and high cost of monitoring dioxins concentration, and achieves low cost and good real-time performance. , low cost effect

Inactive Publication Date: 2017-11-17
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a method and system for predicting the concentration of dioxins in waste incineration flue gas, the purpose of which is to monitor the easily obtained working condition parameters and the concentration of conventional pollutants in real time, Support vector machine regression prediction is used to calibrate the concentration of dioxins in waste incineration flue gas in real time, thereby solving the existing technical problems of high cost, long cycle and poor real-time monitoring of dioxin concentration in waste incineration flue gas

Method used

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  • Method and system for predicating concentration of dioxins in waste incineration flue gas
  • Method and system for predicating concentration of dioxins in waste incineration flue gas
  • Method and system for predicating concentration of dioxins in waste incineration flue gas

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Embodiment 1

[0079] A method for predicting the concentration of dioxins in waste incineration flue gas, comprising the following steps:

[0080] (1) Obtain the working condition parameters and the concentration of conventional pollutants when the waste incinerator is in stable operation, as a feature vector;

[0081] The working condition parameters include: incineration temperature in the furnace, boiler outlet flue temperature, and flue gas flow rate; the conventional pollutant concentration includes: SO 2 concentration, HCl concentration, and particle concentration.

[0082] Get it as follows:

[0083] For the waste incinerator equipped in the domestic waste incineration plant, the flue gas sample collection is carried out, and the sampling points are respectively set after the deacidification tower, before the activated carbon injection and the bag filter, and after the bag filter, and each point is collected 2 to 3 times. . In order to ensure the matching of data, each incineratio...

Embodiment 2

[0098] A method for predicting the concentration of dioxins in waste incineration flue gas, comprising the following steps:

[0099] (1) Obtain the working condition parameters and the concentration of conventional pollutants when the waste incinerator is in stable operation, as a feature vector;

[0100] The working condition parameters include: incineration temperature in the furnace, boiler outlet flue temperature, and flue gas flow rate; the conventional pollutant concentration includes: SO 2 concentration, HCl concentration, and particle concentration.

[0101] Get it as follows:

[0102] For the waste incinerator equipped in the domestic waste incineration plant, the flue gas sample collection is carried out, and the sampling points are respectively set after the deacidification tower, before the activated carbon injection and the bag filter, and after the bag filter, and each point is collected 2 to 3 times. . In order to ensure the matching of data, each incineratio...

Embodiment 3

[0117] A method for predicting the concentration of dioxins in waste incineration flue gas, comprising the following steps:

[0118] (1) Obtain the working condition parameters and the concentration of conventional pollutants when the waste incinerator is in stable operation, as a feature vector;

[0119] The working condition parameters include: incineration temperature in the furnace, boiler outlet flue temperature, and flue gas flow rate; the conventional pollutant concentration includes: SO 2 concentration, HCl concentration, and particle concentration.

[0120] Get it as follows:

[0121] For the waste incinerator equipped in the domestic waste incineration plant, the flue gas sample collection is carried out, and the sampling points are respectively set after the deacidification tower, before the activated carbon injection and the bag filter, and after the bag filter, and each point is collected 2 to 3 times. . In order to ensure the matching of data, each incineratio...

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Abstract

The invention discloses a method and a system for predicating the concentration of dioxins in waste incineration flue gas. The method comprises the following steps: 1, acquiring the working condition parameters during stable running of a waste incinerator and routine pollutant concentrations, which are used as characteristic vectors; 2, inputting the characteristic vectors to a support vector machine model, and carrying out regression prediction; and 3, calibrating the concentration of the dioxins in the waste incineration flue gas according to the above obtained support vector machine regression prediction result. The system comprises a characteristic vector acquiring device, a regression prediction device and a concentration calibrating device. The method has the advantages of good real-time property and low cost; and the system realizes the low-cost and real-time monitoring of the concentration of the dioxins in the waste incineration flue gas without arranging a detection device.

Description

technical field [0001] The invention belongs to the technical field of garbage treatment, and more specifically relates to a method and system for predicting the concentration of dioxins in flue gas of garbage incineration. Background technique [0002] In order to deal with the increasingly serious problem of waste pollution and alleviate the pressure on energy sources, waste incineration power generation, as a treatment method that can realize waste harmlessness, reduction, and resource utilization, has received widespread attention and application all over the world. The level of pollution prevention and control of incineration plants is uneven, and the contradiction of NIMBY caused by excessive discharge of pollutants is prominent. It is urgent to use long-term real-time monitoring as a means to dynamically evaluate, predict and classify the pollution prevention and control capabilities of incineration plants. [0003] The content of dioxins produced by waste incineratio...

Claims

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Application Information

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IPC IPC(8): G01N33/00G06K9/62
CPCG01N33/0004G06F18/2411
Inventor 卢加伟肖晓东海景朱锋雷鸣
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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