A reaction control system and method for an externally heated rotary furnace dry distillation device

Abstract

The invention discloses a reaction control system and a reaction control method of a destructive distillation device of an externally-heated rotary furnace. The reaction control system comprises the externally-heated rotary furnace, the externally-heated rotary furnace is provided with three sections of outer jackets and an inner pipe; the inner pipe is communicated with hot air inlets and hot airoutlets in the outer jackets at two ends; the hot air inlets and the hot air outlets in the three sections of the outer jackets are respectively communicated with hot air systems and communicated with a fuel gas supplying system through fuel gas supplying pipes; materials are heated through all the inner pipes and the outer jackets of a barrel; temperature measuring devices or wireless temperature measuring devices are arranged on the hot air systems, the outer jackets of the barrel, the fuel gas supplying pipes of the hot air inlets and the hot air outlets, the positions, without the jackets, of the barrel of the externally-heated rotary furnace and an inlet and an outlet of the inner pipe of the barrel of the externally-heated rotary furnace; flow measuring devices and flow adjusting devices are arranged on the fuel gas supplying pipes and the hot air system; all devices are connected with a signal conversion module and then connected with a centralized-control system of a computerto realize reaction control of the destructive distillation device of the externally-heated rotary furnace. The reaction control system and the reaction control method of the destructive distillationdevice of the externally-heated rotary furnace have the advantages that a heat suppling system is optimized, and heat efficiency of the system is improved.

Description

technical field [0001] The invention relates to a reaction control system and method of an externally heated rotary furnace dry distillation device, belonging to the technical field of control and method of low-temperature coal dry distillation. Background technique [0002] Coal is a unity of fossil energy and organic raw materials bestowed by nature to human beings. The most efficient way to use coal is to realize the simultaneous acquisition of gas, liquid, solid clean energy and organic chemical raw materials with the least material and energy consumption. For low-deterioration coal resources that account for more than 55% of my country's total coal reserves, proven reserves, and current coal production, including lignite, long-flame coal, non-caking coal, and weakly caking coal, etc., low-temperature pyrolysis can be used to realize the transformation of coal The separation and conversion of gas, liquid and solid components, and further separation and utilization of gas,...

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Problems solved by technology

[0004] In the low-temperature retort process of the rotary furnace, realizing energy saving and emission reduction and increasing product yield are the goals pursued by production, especially the reasonable combustion of gas in the hot air system, so that the heat can be fully utilized in the retort furnace, but in the actual production process , due to unstable gas pressure, unreasonable air-fuel ratio setting, etc., it often causes problems such as large temperature fluctuations in the furnace, low coal conversion rate, and increased energy consumption.

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