Pyrolytic Controlled Gas Incinerator

Advantages:

1. Wide adaptability, for large waste has more outstanding advantages

2. Waste static pyrolysis, gasification, incineration, small dust production, greatly reduce the load of subsequent exhaust purification section, exhaust gas colorless, tasteless, no black smoke

3. The volume of waste after incineration is reduced by more than 95%, the cost of ash disposal is low, and the ash discharged is non-toxic and harmless

4. Incinerate once, incinerate continuously, lighten the intensity of operation, avoid operator's contact with hazardous waste and ensure operation safety

5. Low operating cost, make full use of waste heat generated by pyrolysis and incineration to achieve design temperature

6. High degree of automation, automatic adjustment of air volume, automatic adjustment of burner combustion status according to outlet flue gas temperature

Scope of application:

Principle of operation

The device adopts the non-sorting and one-time input pyrolysis waste treatment method, that is, the input of waste and ashing treatment area are completely separated from the combustion treatment area of pyrolysis gas, and the combustion temperature is automatically controlled to effectively inhibit the generation of dioxin.

The gasification pyrolysis treatment method refers to using the heat energy of the garbage itself to break the chemical bonds of the garbage in the gasifier under the condition of hypoxia, and convert it into a fuel gas with a small molecular weight, and then introduce the fuel gas into the combustion furnace at high temperature and completely combustion. Due to the complete incineration process, the residual ash is completely non-polluting.

The working principle of the gasification pyrolysis furnace: the waste is ignited by the burner to start burning, the air supplied by the supplementary air system is distributed in the lower part of the furnace, and the air volume is only 20%-40% of the chemical oxygen demand required for waste combustion, so that only the waste in the lower part of the furnace is completely burned, and the heat released by the combustion is transferred upward to the upper layer of waste. The upper layer of waste absorbs heat and is first dried, then pyrolyzed, and then carbonized. As a result, the waste gradually forms a embers layer, combustion layer, carbonization layer, pyrolysis layer and drying layer from bottom to top in the furnace, and the long molecular chains of various compounds are gradually broken into short molecular chains and become combustiblegas. Since there is not enough oxygen for further oxidation of these gases, these gases will enter the secondary combustion chamber for further combustion. The remaining combustible fixed carbon is gradually converted into CO2 due to the long stay in the furnace. The combustion and pyrolysis of waste under anoxic conditions greatly suppress the formation of nitrogen oxides, and most of the nitrogen generates nitrogen gas during the pyrolysis process, not nitrogen oxides. Only about half of the waste in the embers in the pyrolysis furnace generates nitrogen oxides (because the nitrogen in organic matter includes: NH2 groups with reductibility, NO2 groups with There are three forms of neutral nitrogen in the ring, and only the NO2 group generates nitrogen oxides in the process of pyrolytic oxidation).

During operation, the pressure in the furnace is controlled by adjusting the speed of the exhaust fan through automatic frequency conversion to ensure slight negative pressure incineration in the furnace.

The furnace is equipped with an explosion-proof door, which is safe and reliable. All feed doors and inspection doors are soft-sealed to avoid gas leakage, and the furnace body is well-sealed to ensure the effect of oxygen-controlled pyrolysis. The exterior of the incinerator body is all-steel structure, and the interior is made of refractory and thermal insulation casting, which can withstand high temperature and has the function of thermal insulation protection. The refractory thermal insulation material adopts a special casting process to effectively prevent falling off. The air distribution design can prevent coking in the primary combustion chamber (pyrolysis furnace) and the secondary combustion chamber.

The inner lining of the incinerator is made of refractory castable, which has the functions of fire resistance, corrosion resistance and thermal load impact resistance; the refractory castable has good heat insulation performance.

There is a negative pressure measuring point on the upper part of the furnace body, which is used to monitor the negative pressure of the system in real time to ensure that the system always operates under negative pressure. A thermocouple (temperature measuring hole) is provided to detect the operating temperature of the pyrolysis furnace. In addition, there is an inspection door and multiple observation holes, which are convenient for equipment maintenance and observation of the furnace conditions.