The current incinerator for waste liquids primarily has three major rating criteria: 1. The type of grate; 2. The method and intensity of grate movement; 3. The angle of the grate and the direction of waste movement on the grate surface. Only when these three criteria are met can we better ensure timely ignition, complete combustion, and ash residue incineration. The grate should be divided into three zones: the drying and ignition area, the main combustion area, and the ash residue incineration area. Below, we introduce the development forms of waste liquid incinerators.
Waste incineration technology has undergone nearly 130 years of development, and the technology and equipment for waste incinerators have become increasingly refined and widely utilized. The commonly used waste incineration systems in developed Western countries currently mainly include the following types:
(1) Waste incineration systems with grate designs such as traveling grate, horizontal reciprocating push grate, and inclined reciprocating grate (including both forward and reverse inclined reciprocating grates). The main characteristic of the layer combustion incineration method is that the waste does not require strict pretreatment. The traveling and reciprocating grates have strong fire-stoking effects, making them more suitable for the incineration of urban waste with low calorific value and high ash content.
(2) Fluidized bed incineration system, characterized by suspended combustion of waste, ensuring thorough contact between air and waste for effective combustion. However, this method requires fuel with uniform particle size and consistent feeding, making it challenging to incinerate large pieces of waste. Consequently, the system demands strict pre-treatment of waste, which limits its development in industrial waste and urban waste incineration fields.
(3) Rotating Drum Incinerator, characterized by burning waste in a continuously and slowly rotating drum until it is completely incinerated, thus ensuring good contact between waste and air for even and thorough combustion. This type of incinerator is commonly used in Western countries for the disposal of toxic and hazardous industrial waste.
