Outer heating pyrolysis reactor for high-moisture carbon-based raw material

Abstract

The invention discloses an outer heating pyrolysis reactor for a high-moisture carbon-based raw material. The outer heating pyrolysis reactor comprises a pyrolysis chamber; the upper part of the pyrolysis chamber is provided with a feed inlet; the lower part of the pyrolysis chamber is provided with a continuous ash discharging mechanism and a combustion gas outlet; the inner wall of the pyrolysis chamber is plugged with a bottom tube plate; the lowest point of the bottom tube plate is aligned with the bottom of an ash inlet of the continuous ash discharging mechanism; the bottom tube plate is connected with the lower ends of vertical flue gas tubes, and the upper ends of the vertical flue gas tubes are connected with a top tube plate; a flue gas chamber sealing head covers over the top tube plate; the top tube plate and the flue gas chamber sealing head define a flue gas chamber; and a flue gas discharging tube connected with the flue gas chamber sealing head extends out from the pyrolysis chamber. Flue gas produced after combustion enters from the bottom of the pyrolysis chamber, is sent to the flue gas chamber through the vertical flue gas tubes and is then discharged out via the flue gas discharging tube. The outer heating pyrolysis reactor has an increased heat transfer area and improved heat and mass transfer efficiency.

Description

technical field [0001] The invention relates to a pyrolysis reactor, in particular to an external heating type pyrolysis reactor for high-humidity carbon-based raw materials. Background technique [0002] Since the 21st century, with the rapid development of China's economy, the process of industrialization and urbanization has been further accelerated, and the problems of energy shortage and environmental pollution have become increasingly serious. my country's traditional high-quality carbon-based energy is facing the problem of resource depletion. Therefore, it is particularly urgent to find suitable backup energy raw materials and improve energy utilization efficiency. [0003] my country's high-moisture carbon-based raw materials (such as lignite, sludge, etc.) have a large annual output, but due to factors such as high moisture content and difficulty in utilization, their economic efficiency has been reduced, and they have not been effectively utilized. If a reasonab...

AI Technical Summary

Problems solved by technology

Due to the high moisture content of sludge, the traditional gasification method requires sludge to be pre-dried by drying equipment before entering the gasifier, which consumes too much energy.

Existing pyrolysis devices have high requirements on the moisture content of raw materials entering the gasifier, generally requiring the moisture content of raw materials to be reduced to below 20%, with small heat transfer area, low reaction temperature, and low heat and mass transfer efficiency

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