A Circulating Fluidized Bed Roasting Activation Rotary Cogeneration Furnace

Abstract

The invention relates to the technical field of environmental protection and resource recycling comprehensive utilization, in particular to a circulating fluidized bed roasting activation rotary co-production furnace. It is characterized in that it includes a roasting activation rotary furnace, a circulating fluidized bed coal-fired boiler, and an electric bag dust collector. The roasting activation rotary furnace is designed between the combustion system and the heat exchange system of the circulating fluidized bed coal-fired boiler, specifically The hot air channel of the roasting activation rotary furnace is connected with the cyclone separator of the circulating fluidized bed coal-fired boiler, and the high-temperature flue gas discharged from the air separator of the roasting activation rotary furnace passes through the superheater and economizer of the circulating fluidized bed coal-fired boiler in sequence , Air preheater heat exchange, electric bag dust collector is also the finished product capture device of the roasting activation rotary furnace and the environmental protection treatment device of the exhaust gas particles of the circulating fluidized bed coal-fired boiler.

Description

technical field [0001] The invention relates to the technical field of environmental protection and resource recycling comprehensive utilization, in particular to a circulating fluidized bed roasting activation rotary co-production furnace. Background technique [0002] Kaolin is widely used, mainly used in papermaking, ceramics, rubber and plastics, chemical industry, paint, medicine and other industries. The main mineral component of kaolin is kaolinite, and the crystal chemical formula of kaolinite is 2SiO 2 ·Al 2 o 3 2H 2 O, through the calcination process to remove organic matter and lattice reconstruction; mechanical pulverization and jet pulverization to a sufficient fineness to meet the requirements of preparing fillers such as cable plastics and rubber sealing rings, paper coatings, molecular sieves, and catalyst carriers. Circulating fluidized bed coal-fired boiler fly ash is the most common waste in the boiler production process, the main component is SiO 2 、A...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the technical solution proposed in prior art 1 is to provide a sludge drum external heat drying and circulating fluidized bed incineration integration and exhaust gas purification device, which is relatively close to the design of this case, but the circulating fluidized bed coal-fired boiler The outlet temperature of the furnace is 900±50°C, while the activation temperature of kaolin is required to reach 900-1280°C. The rotary kiln roller is interspersed and installed on the flue at the end of the circulating fluidized bed. The heating can only be used for drying and cannot meet the requirements The process temperature conditions required for roasting and activation; prior art 2 uses the hot semi-tar gas after the coal is cracked in the rotary kiln to be sent to the circulating fluidized bed boiler for combustion and power generation, and the other part of the semi-tar gas is sent to the fluidized bed furnace to generate hot air for the coal-fired cracking plant Heat is required, and there is no mention of the recycling and comprehensive utilization of coal-fired fly ash in circulating fluidized beds

Images