Main Factors Affecting the Performance of Garbage Incinerator

Over the years of extensive treatment, many domestic waste landfill areas have reached the limit of disposal, and the public has become more and more concerned about environmental problems caused by incorrect waste disposal methods. "Incineration" has become a relatively good waste disposal method. s Choice. Although incineration cannot completely replace landfill, it can reduce the amount of landfill.

For the two-stage air-controlled waste incinerator, add 70% to 80% of the theoretical air volume in the first combustion chamber, and make up the air volume to 140% to 200% of the theoretical air volume in the second combustion chamber. Because the first combustion chamber is anoxic combustion, increasing the air flow will increase the combustion temperature; but in the second combustion chamber is superoxygen combustion, increasing the air flow will reduce the combustion temperature. Secondary air is mostly injected from both sides to accelerate indoor air mixing and turbulence.

The air supply mode of single combustion chamber incinerator and two-stage controlled gas incinerator is different.

As far as the single-combustion chamber incinerator is concerned, the air supply mode of the combustion air can be divided into two types: the air supply on the hearth and the air supply under the hearth. Generally, 100% to 300% of excess air is added, that is, the air ratio is between 2.0 and 4.0. .

The residence time refers to the time required for the harmful components in the waste to oxidize and decompose under incineration conditions, and finally complete the harmless substances. The length of the residence time directly affects the destruction rate of incineration and also determines the specific size of the furnace. There are many factors that affect the residence time, such as incineration temperature, air excess coefficient, and the degree of mixing of air and waste in the furnace. In order to ensure that the waste and combustion products are completely decomposed, the waste stays in the incinerator at about 600°C for about 1 hour.