A method of using a pyrolysis device

Abstract

The invention discloses an application method for a pyrolysis device and belongs to pyrolysis equipment in the chemical industry. The application method for the pyrolysis device comprises the following steps that firstly, primary air is led into a primary air inlet, and rotational flow is formed in a pyrolysis furnace; secondly, a pyrolysis raw material is fed into a feeding port, under the action of the rotational flow, the pyrolysis raw material rotates and sinks to the bottom of the pyrolysis furnace and is pyrolyzed; thirdly, a solid product produced through pyrolysis constantly sinks to a discharging port in the lower end of a lower straight cylinder segment and then is conveyed to the exterior of the furnace through a screw conveyor, and a gas product produced through pyrolysis is discharged out of the furnace through a center cylinder; fourthly, the air volume of secondary air is adjusted, and the diameters of the solid product conveyed to the exterior of the furnace through the screw conveyor are controlled to be smaller than 2 mm. The application method mainly overcomes the defect that in the prior art, the dust load in pyrolysis gas is large.

Description

Technical field [0001] The invention relates to thermal decomposition equipment in the chemical industry, and more specifically, to a method of using a pyrolysis device. Background technique [0002] The pyrolysis technology is to heat the organic matter to 500-1000°C in the absence of oxygen or oxygen, so that the organic matter in the solid waste is converted into storage energy mainly composed of fuel gas, fuel oil and pyrolysis charcoal. Due to the anoxic decomposition and reduction atmosphere, it can reduce the secondary pollution of sulfur, nitrogen, heavy metals and other harmful components in the waste to the environment, and there is no need for expensive scrubbing equipment in the process. [0003] The burning of fossil fuels has caused most of the environmental pollution problems and seriously affected people’s quality of life. As a green and renewable energy source, biomass has received widespread attention from all countries in the world. Biomass pyrolysis and gasifica...

AI Technical Summary

Problems solved by technology

[0007] Both of the above two pyrolysis equipment adopt the cyclone pyrolysis technology, that is, the raw materials are pyrolyzed through the cyclone in the pyrolysis furnace while the pyrolyzed gas and solid products are directly separated, although the subsequent gas and solid separation is reduced. process, which greatly improves the economic benefits, but there are still the following technical defects that are difficult to overcome: although this cyclone pyrolysis technology can directly separate the gas and solid in the product, it is found through actual testing that the cyclone pyrolysis technology is used to separate The pyrolysis gas still contains a large number of dust particles. In the subsequent treatment, it is usually necessary to use different equipment to remove dust step by step from the pyrolysis gas. Various equipment occupy a large area and increase production costs.

[0008] To sum up, how to overcome the deficiency of large dust content in pyrolysis gas in the prior art is a technical defect that needs to be overcome urgently in the prior art

Images