Rotary Reactor Furnace Hot Air Heating System

Abstract

The invention relates to a rotary-reactor hot-air heating system which comprises a recovery furnace (1), a dewater furnace (2) and a thermal decomposition furnace (3). A warm air gas furnace (4) is arranged outside the thermal decomposition furnace (3), a gas inlet pipe (5) and an air inlet pipe (6) are connectively arranged on the warm air gas furnace (4), the jacket of the warm air gas furnace (4) and the jacket of the thermal decomposition furnace (3) are connected through a hot-air outlet pipe (9), the jacket of the thermal decomposition furnace (3) and the jacket of the dewater furnace (2) are connected through a first connecting pipe (10) and a second connecting pipe (11), and the jacket of the dewater furnace (2) and the warm air gas furnace (4) are connected through a return duct (15) therebetween. The rotary-reactor hot-air heating system is high in hot-air temperature and rapid in material heating, thermal efficiency is as high as 85%, energy sources can be effectively saved, energy consumption can be reduced, and economic benefit of products can be finally improved.

Description

Technical field [0001] The invention relates to a hot air heating system for a rotary reaction furnace, which can be applied to industries such as hydrogen fluoride production, raw coal pyrolysis or material drying, and belongs to the technical field of rotary reaction furnace process equipment. Background technique [0002] my country is a country with abundant coal resources but relatively scarce oil and natural gas resources. In recent years, with the deterioration of the atmospheric environment in northern my country, in order to reduce the direct combustion and utilization of coal, the technology of converting coal into oil or gas has attracted more and more attention from domestic scholars. At present, there are many methods for converting coal into oil or gas. The main methods include direct or indirect liquefaction of coal to produce oil or gas. However, this method requires large investment, high energy consumption, and low efficiency; in addition, traditional vertical f...

AI Technical Summary

Problems solved by technology

At present, there are many methods for converting coal into oil or gas, mainly including direct or indirect liquefaction of coal to produce oil or gas. However, this method requires large investment, high energy consumption, and low efficiency; in addition, there are traditional vertical furnaces A method of coal pyrolysis, but this method also has disadvantages such as low oil yield and inability to process pulverized coal

Nowadays, many domestic institutions and scholars have begun to study the method of using rotary furnace equipment for coal pyrolysis and upgrading to produce coal tar, gas and upgraded coal. This method has low investment, high oil and gas production rates, and can process pulverized coal. Therefore, it has a good prospect and has been paid more and more attention. However, the heat transfer efficiency of the domestic coal pyrolysis upgrading rotary furnace is generally low, the energy waste is serious, and the exhaust temperature of the chimney is too high, which has an impact on the environment. This is also one of the key problems that plague the industrialized and stable operation of the rotary furnace coal pyrolysis upgrading process

Images