Production technology and production equipment of desulfurization and denitrification active coke using multi-stage furnace

Abstract

The invention discloses a production technology for manufacturing desulfurization and denitrification active coke by a multistage furnace and production equipment. The production technology comprises the following steps: granulation: raw coal, supplementary coal and an adhesive are sent to a roll-in granulator for rolling and granulation; bake-hardening: roll-forming granules are sent to a net-belt dryer for bake-hardening processing; carbonization, activation and oxidation: the granules which have undergone bake-hardening processing by the net-belt dryer are put into the multistage furnace for carbonization, activation and oxidation; cooling: the granules which have undergone carbonization, activation and oxidation by the multistage furnace are rapidly sent to a solid-liquid forced cooler for cooling and the granules cooled by the solid-liquid forced cooler are sent out so as to prepare desulfurization and denitrification activated charcoal; and screening and packaging: screening and packaging are carried out to prepare the desulfurization and denitrification active coke. According to the invention, the apparent defect problem of desulfurization and denitrification active coke produced by desulfurization and denitrification active coke production equipment with a rotary kiln as core manufacturing equipment is thoroughly eliminated. Meanwhile, production land is saved, and the environmental protection and energy saving effect is remarkable.

Description

technical field [0001] The invention relates to the field of environmental protection technology, in particular to a production process and production equipment for manufacturing desulfurization and denitrification active coke using a multi-stage furnace. Background technique [0002] Activated coke products for industrial flue gas desulfurization and denitrification use bituminous coal or anthracite as the main raw material, add auxiliary and other coal types for tempering, and / or solid or liquid binders, and after full mixing, use pellets to form Or extrusion molding equipment to make granular shapes with uniform particle size and neat appearance, and then go through high temperature (above 600°C) carbonization, shallow water vapor activation, post-oxidation and other processes to make neat granular products that meet the established technical quality requirements active coke. [0003] This active coke particle product can be used in industrial flue gas pollutant treatmen...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problems existing in the production of desulfurization and denitrification active coke by the rotary kiln device, and discloses a production process and production equipment for the production of desulfurization and denitration active coke by using a multi-stage furnace

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