Preparing apparatus for granular active carbon

Abstract

The invention belongs to the technical field of granular active carbon production in a gas-solid fluidization mode, and relates to a device for preparing the granular active carbon using plant straw and other solid waste of farm products as raw materials by a sound field and jet flow coupled and strengthened gas-solid contact type fluidized bed. The structure of a main body of the device comprises a nitrogen gas inlet, a double-vertical jet pipe type carbon dioxide inlet, a sound wave generator, a sound wave adjuster, a speaker, a gas distribution plate of a circulating fluidized bed, a biomass spiral feed port, a main body of the circulating fluidized bed, a cyclone separator, a quartz sand circulating discharge pipe, an active carbon collecting pipe, a heat exchanger, a gas-liquid separator, a quartz sand and active carbon separator, a baffle plate of the gas distribution plate, an oblique-type gas distribution plate, a gas inlet control valve, and a gas outlet control valve; the parts are combined in principle to form an active carbon preparation device for bubble pyrolysis and circulating activation of the sound field and jet flow coupled fluidized bed; and an outfield strengthened jet flow fluidized bed reactor has a novel and reliable structure, and flexible operation, and can continuously perform production to save energy.

Description

Technical field: [0001] The invention belongs to the technical field of producing granular activated carbon by means of gas-solid fluidization, and relates to a device for preparing granular activated carbon by using solid waste of agricultural products such as plant stalks as raw materials and coupling enhanced gas-solid contact fluidized bed with sound field and jet flow. Background technique: [0002] my country is a large agricultural country with extremely rich plant biomass resources. Agricultural waste, as a renewable resource, has a high carbon content (usually above 45%) and low ash and sulfur content (the ash content is generally within 5%, sulfur-free or slightly sulfur-containing), so it can be used to prepare charcoal. The high-quality raw materials of materials; the production of activated carbon from plant-based agricultural waste not only recycles agricultural waste, but also solves the problem of plant straw environmental pollution. In addition, it can also...

AI Technical Summary

Problems solved by technology

Most of the existing granular activated carbon preparation technologies and equipment use biomass to be intermittently pyrolyzed in a fixed-bed reactor, and then perform intermittent activation operations. This method and technology is difficult to carry out continuous production, and the quality of the granular activated carbon prepared by it is difficult to guarantee , and its production process is complicated, the production cost is high, and the pollution is strong. Therefore, it has obvious social and economic value to study and apply the technology and equipment of plant biomass raw materials to prepare granular activated carbon.

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