Waste Pyrolysis Gasification Technology

1. Working principle: Haiqi pyrolysis gasification technology uses the principle of pyrolysis gasification to treat solid waste, which ensures the stability and high efficiency of combustion conditions without any auxiliary fuel.

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

3. Economic advantages: with "simple and compact furnace structure, convenient operation of starting and stopping the furnace, convenient maintenance, and low operating energy consumption"

4. Environmental advantages: The secondary combustion chamber burns small-molecule combustible gas, which produces very few pollutants, such as SOx (acid gas), NOx (nitrogen oxide), dioxin, and heavy metals, especially the amount of fly ash It is far lower than the amount of fly ash produced by grate furnace technology and fluidized bed technology, which greatly reduces the secondary pollution caused by garbage disposal to the environment, and also reduces the cost of exhaust gas treatment.

5.According to the characteristics of my country's garbage, the pyrolysis gasification system realizes a two-stage treatment process of first pyrolysis and gasification, and then oxygen-enriched combustion, so that the garbage is completely burned, and the thermal ignition loss 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.

6.Since the pyrolysis gasification chamber (second combustion chamber) burns gas and the excess air coefficient is small, the amount of flue gas generated by pyrolysis is less than that of direct incineration, especially the SOX, NOX, HCL, HF and The content of pollutants such as heavy metals is low. It is beneficial to the purification of flue gas and reduces the emission of secondary pollution and the cost of treatment.

7.The pyrolysis 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 °C, and the residence time of the flue gas exceeds 2s, which can quickly decompose dioxins. , thereby reducing the content of heavy metals, dioxins and other harmful substances in the fly ash discharged after garbage treatment, and greatly reducing the secondary pollution to the environment

8.The unique structural design of the pyrolysis gasifier keeps the operating conditions relatively stable, making the feeding and discharging processes controllable, and the operation and maintenance of starting and stopping the furnace are convenient.

9.The unique temperature field distribution of the pyrolysis gasifier not only does not require the addition of auxiliary fuel, which is conducive to the pyrolysis and gasification of waste, but also makes the thermal efficiency higher and the burn-off rate lower. The grate works in a low temperature area, which avoids the thermal influence of high temperature on the grate, reduces the equipment manufacturing cost, improves the reliability of equipment operation, and prolongs the service life of the equipment.

10.The design of the pyrolysis gasifier is scientific and reasonable, the structure is simple and compact, the automatic control is easy to be realized, the weight is light, the layout is easy, and the construction period is short; the operation energy consumption and cost are low, the land occupation is small, the investment is low, and the economic benefit is obvious.

11.The pyrolysis gasifier has strong adaptability and a wide range of applications. It can handle both high calorific value waste and low calorific value waste. It can be applied to both urban domestic waste and industrial waste.

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