Introduction of Haiqi Waste Pyrolysis Gasification Technology

Working principle: Haiqi pyrolysis gasification technology adopts the principle of pyrolysis gasification to treat solid waste, ensuring the stability and efficiency of combustion conditions without any auxiliary fuel.

Technical advantages: "high combustion temperature, low heat reduction rate, small fly ash discharge, low dioxin emission concentration".

Economic advantages: It has "simple and compact furnace structure, convenient operation of starting and stopping furnace, convenient maintenance and low energy consumption".

Environmental advantages: The secondary combustion chamber burns small molecular flammable gases, which produce pollutants, such as SOx(acid gas) and NOx (nitrogen oxide), dioxins, heavy metals are very small, especially the amount of fly ash is much lower than the amount of fly ash produced by grate furnace technology and fluidized bed technology, which greatly reduces the secondary pollution caused by waste disposal to the environment, and also reduces the cost of exhaust gas treatment.

According to the characteristics of garbage in our country, the pyrolysis gasification system has realized the two-stage treatment process of garbage, first pyrolysis gasification and then oxygen-rich combustion, which makes the garbage completely combustor, and the thermal reduction rate and leaching toxicity of the treated residue are lower than the national standard. This technology has a leading level in China, and is a relatively safe and economical waste treatment technology.

Because the pyrolysis gasification chamber (secondary combustion chamber) burns gas, the excess air coefficient is small, so the amount of flue gas produced by pyrolysis method is less than that of direct incineration method, especially the content of SOX, NOX, HCL, HF and heavy metals and other pollutants in the flue gas is less. It is beneficial to the purification of flue gas and reduces the discharge and treatment cost of secondary pollution.

The pytolysis gasification process is carried out under anaerobic or anaerobic conditions, which reduces the generation of dioxin precursors. The temperature in the secondary combustion chamber is as high as 1100℃, and the residence time of flue gas is more than 2s, which can quickly decompress dioxin substances, thus reducing the content of heavy metals, dioxin and other harmful substances in the fly ash discharged after waste treatment, and greatly reducing the secondary pollution caused to the environment.

The unique structure design of pyrolysis gasifier keeps the operation condition relatively stable, makes the feeding and discharging process controllable, and it is convenient to start and stop the furnace, and easy to maintain.

The unique temperature field distribution of the pyrolysis gasifier not only does not need to add auxiliary fuel, which is conducive to the pyrolysis gasification of waste, but also makes the thermal efficiency higher and the heat reduction rate lower. The grate works in the low temperature area, avoiding the thermal influence of high temperature on the grate, reducing the cost of equipment manufacturing, improving the reliability of equipment operation, and extending the service cycle of equipment.

The design of pyrolysis gasifier is scientific and reasonable, the structure is simple and compact, easy to realize automatic control, light weight, easy to arrange, short construction period; Low energy consumption and cost, less occupation, low investment, obvious economic benefits.

Pyrolysis gasifier has strong adaptability and wide application range. It can not only deal with garbage with high calorific value, but also deal with garbage with low calorific value. It can be applied to the treatment of urban household garbage and industrial garbage.