Application method for 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 pyrolysis equipment in the chemical industry, more specifically, to a method for using a pyrolysis device. Background technique [0002] Pyrolysis technology is to heat organic matter to 500-1000°C in anaerobic or oxygen-deficient state, so that organic matter in solid waste can be converted into stored energy mainly consisting of gas, fuel oil and pyrolytic charcoal. Due to the anaerobic decomposition and reducing 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 devices in the process. [0003] Combustion of fossil fuels has caused most of the environmental pollution problems and seriously affected people's quality of life. Substance thermal conversion utilization technology. According to the statistics of the National Development and Reform Commission, in 2013, the actual domestic con...

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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

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