Automatic control method for hazardous waste incineration

Abstract

The invention relates to an automatic control method for hazardous waste incineration. The automatic control method comprises the following steps: effectively combining and applying a BP neural network algorithm and a distribution type control system to a hazardous waste incineration system, establishing a hazardous waste incineration system database by utilizing a hazardous waste incineration process equipment data information module, an equipment operation working condition parameter data information module, primary and auxiliary charging data information modules and a smoke gas emission data information module, establishing, training and operating a system function module by utilizing the system database, a BP neutral network tool and a process target value, and feeding control requirements to DCS and a filed performing mechanism. The automatic control method realizes automatic predication, judgment, regulation, control and deviation rectification on an incineration system production line.

Description

technical field [0001] The invention relates to an automatic control method for hazardous waste incineration. Background technique [0002] In the current mainstream hazardous waste incineration process, the automatic control system includes a distributed control system, an online flue gas monitoring system, an on-site data acquisition system, and an on-site actuator. Pollutant discharge indicators, if the equipment operating parameters or pollutant discharge concentration is abnormal, the automatic control system will operate and control the incineration line production facilities according to the abnormal situation according to the preset logic (the production personnel in special cases judge based on experience), so as to meet the expected control requirements and meet the Operating conditions and emission requirements. [0003] Since the control logic of the existing automatic control system is monitoring, alarm, control, and execution, which belongs to post-event contr...

AI Technical Summary

Problems solved by technology

[0004] 1. The existing flue gas online monitoring system and on-site data acquisition system all use various types of sensors, data acquisition instruments, and analyzers. When the instrument monitors relevant data abnormalities and transmits the data to the distributed control system, it indicates the operating conditions The abnormal situation has already occurred. At this time, the action of the actuator is controlled. The abnormal data often cannot be restored to normal immediately, which will cause delays to the expected operating conditions;

[0005] 2. Because the hazardous waste incineration process is different from the forward product production line, the incineration process is extremely complicated, and the incineration process is the production process, because the physical and chemical parameters of the incinerated hazardous waste are constantly changing

When the data of the flue gas online monitoring system is abnormal, adjusting the parameters of the operating conditions will often lead to the occurrence of other abnormal conditions, thus greatly reducing the stability of the incineration process system;

[0006] 3. When the above two situations cannot be handled properly, the abnormal data will be transmitted to the environmental authorities, which will have a great impact on the production of the enterprise; if it is not handled properly, it may even cause serious safety production accidents

In order to avoid this situation, we can only reduce the pollutant discharge threshold and reduce the equipment load. It can be seen that the production efficiency of the system is not high and the system robustness is poor

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