What are the components of a small waste incinerator

Furnace body primary combustion chamber, secondary combustion chamber, cyclone dust collector, chimney, flue, piping system, high pressure blower, secondary pressure induced draft fan, primary burner, secondary burner, and electric control cabinet, temperature display device , detection devices, etc.

Combustion process and brief description:

The waste is manually put into the primary combustion chamber of the furnace body, and the automatic temperature control starts the primary combustion. According to the principle of combustion three T (temperature, time, eddy current), it is fully oxidized, pyrolyzed and burned in the combustion chamber of the furnace body. The flue gas produced by incineration enters the secondary combustion chamber, and the unburned harmful substances in the flue gas are further destroyed in the secondary combustion chamber. In order to decompose the unburned matter and meet the emission requirements, the secondary combustion chamber is equipped with a burner to support combustion and a unique secondary air supply device to ensure that the flue gas is in full contact with oxygen at high temperature and at the same time ensure that the flue gas is in the secondary combustion chamber. The residence time of the chamber and the air supply volume are adjusted according to the oxygen content of the flue gas at the outlet of the second combustion chamber. The temperature in the secondary combustion chamber is controlled and the dust with larger particles is removed through the dust collector, so that the incineration efficiency and destruction removal rate can reach more than 99%, so that it can achieve the effect of no peculiar smell, no stench, and no smoke, and meet the emission standard, and then enter The chimney vents into the atmosphere, and the ash produced after combustion is manually removed.

1. Pulse throwing grate incinerator

Working principle: Garbage is sent to the drying bed of the incinerator through the automatic feeding unit for drying, and then sent to the first-stage grate, where it is volatilized and cracked at high temperature on the grate, and the grate is thrown under the impetus of the pulse air power device. The garbage is thrown into the next level of grate step by step, at this time, the polymer material is cracked and other substances are burned. It goes on like this until it enters the ash pit after burning out and is discharged by the automatic slag removal device. Combustion-supporting air is sprayed in through the air holes on the grate and mixed with the garbage for combustion, while making the garbage suspended in the air. The volatilized and cracked substances enter the second-stage combustion chamber for further cracking and combustion, and the unburned flue gas enters the third-stage combustion chamber for complete combustion; the high-temperature flue gas heats the steam through the heating surface of the boiler, and the flue gas passes through Let cool and drain.

2. Mechanical grate incinerator

Working principle: Garbage enters the inclined downward grate through the feed hopper (the grate is divided into drying area, burning area, and burnout area). Due to the staggered movement between the grates, the garbage is pushed downward, so that the garbage passes through in turn. Each area on the grate (when the garbage enters from one area to another area, it plays a big turning role), until it is burned out and discharged from the furnace. The combustion air enters from the lower part of the grate and mixes with the garbage; the high-temperature flue gas passes through the heating surface of the boiler to generate hot steam, and at the same time the flue gas is cooled, and the flue gas is discharged after being treated by the flue gas treatment device.

3. Fluidized bed incinerator

Working principle: The furnace body is composed of porous distribution plates. A large amount of quartz sand is added into the furnace, the quartz sand is heated to above 600°C, and hot air above 200°C is blown into the bottom of the furnace to make the hot sand boil, and then put in Rubbish. The garbage boils with the hot sand, and the garbage quickly dries, catches fire, and burns. The unburned garbage has a relatively light specific gravity and continues to boil and burn. The burned garbage has a relatively high specific gravity and falls to the bottom of the furnace. The quartz sand is sent back to the furnace through the lifting equipment for further use.

4. Rotary incinerator

Working principle: The rotary incinerator is arranged along the furnace body with cooling water pipes or refractory materials, and the furnace body is placed horizontally and slightly inclined. Through the non-stop operation of the furnace body, the garbage in the furnace body is fully burned, and at the same time it moves in the direction of the furnace body inclination until it is burned out and discharged from the furnace body.

5. CAO incinerator

Working principle: Garbage is transported to the storage pit, enters the biochemical treatment tank, and is dehydrated under the action of microorganisms to decompose natural organic matter (kitchen waste, leaves, grass, etc.) into powder, and other solids include synthetic organic matter such as plastic rubber and garbage The inorganic substances in it cannot be decomposed and pulverized. After screening, the non-powdered waste enters the first combustion chamber of the incinerator, and the combustible gas produced enters the second combustion chamber, and the incombustible and non-pyrolyzable components are in the form of ash in the first combustion chamber. discharge. The temperature of the second chamber is controlled at 800°C for combustion, and the high-temperature flue gas heats the boiler to generate steam. After the flue gas is treated, it is discharged to the atmosphere through the chimney. The metal glass will not be oxidized or melted in the first combustion chamber, and can be sorted and recovered in the ash.