What is the working principle of pyrolysis gasifier?

With the increasingly strict environmental protection in China, small and medium-sized industrial boilers, pulverized coal power station boilers and fluidized bed combustion industry will face serious challenges, and actively carry out the coal power clean burner ultra-low emission technology is imminent.

High-temperature pyrolysis gasifier as pyrolysis environmental protection equipment, the selection of high-quality flue gas purification system and high-quality waste heat using the boiler, composed of domestic conditions in line with the construction engineering and cost advantages, excellent processing role, high level of resourcefulness of domestic waste treatment equipment.

The working principle of high temperature pyrolysis gasifier

When the thermal stress ≥ 800 ℃, greatly exceeding the ignition point of the gas, only to meet the oxygen, will produce a violent reaction. The ignition and combustion are relatively stable. When the thermal stress ≥ 900 ℃, even if the oxygen concentration of 5%, you can still get a relatively stable combustion flame.

In the combustion recovery chamber (secondary combustion chamber), because there is no introduction of oxygen, the key source of oxygen in the secondary combustion chamber is from the gasification of the gas chamber gasification of the unused oxygen, the oxygen content of the gasification chamber is 11-15%. In the combustion recovery room (second combustion chamber) with sufficient space, the high temperature from the gasification chamber is used to make the gas from the gasification chamber burn quickly. Since the temperature of the combustion recovery chamber (secondary combustion chamber) is 800-1100°C, the gas from the gasification chamber can be burned quickly and fully even if the oxygen content is very low (5-9%).

Basic requirements for the grate

The grate should be of sufficient length and area to fulfill the design waste capacity and to ensure that the waste has a full time to incinerate the process and to meet the set slag burn rate targets.

In the grate drying and flaming section, burning section, burning section should have a better structure to complete the complete incineration of the form, with the garbage completely dry, loose, churning role, with a better flame adjustment performance.

With the composition of garbage, moisture content, calorific value and other properties and garbage cycle and instantaneous ups and downs of the better adaptability.

The grate is easy to install, firm and easy to maintain. The evaporative cooling grate is standardized to use heat shock and corrosion-resistant materials.

Advantages of pyrolysis gasification technology:

First, the use of coal slurry and low-quality bituminous coal, high quality and low price;

Second, the gasification of compressive strength;

Third, the production of load adjustment flexibility;

Fourth, the operation of the more stable and reliable, high operating rate;

Fifth, the gas content of methane is high, most of which is free of tar;

Sixth, the gas product cost is low;

Seven. Simple structure of solid state scavenging, etc.

Article link: scavenger environmental protection network/News/detail_25264.html