Dry distillation method of connecting Ramsbottom carbon dry distillation furnace with double-section gasification furnace and using high-temperature coal gas to replace combustion supporting gas

Abstract

The invention provides a method. According to the method, dry distillation crushed coal and slack coal are mainly milled and kneaded; extracted -15 to 30mm of cylindrical particles are used as major materials; small pea coal is used as auxiliary materials; coal is crushed by a sieve opening being 30mm; 5 to 30 mm of small-particle lump coal is separated out and is used for sealing a strong-force slag crushing double-section furnace to realize the gasification for replacing the gasification of lump coal gasification being 3 to 5cm and 3 to 8cm; the coal gasification raw material sources are expanded and increased. The rest crushed coal and slack coal being smaller than 5mm after the separation are milled and kneaded; the extruded cylindrical particles are fed into a Ramsbottom carbon dry distillation furnace to produce particular Ramsbottom carbon. The method has the advantages that the finished product rate is high; the crushing is little; cleanness is realized; the moisture content is low; the produced Ramsbottom carbon adapts to the use by various scattered bituminous coal-fired boilers, bituminous coal furnaces and stoves; the exhaust pollution of the bituminous coal firing is fundamentally solved.

Description

technical field [0001] The invention relates to dry distillation technology, and relates to a dry distillation method for replacing high-temperature coal gas in a double-stage gasification furnace connected with a blue charcoal dry distillation furnace. Background technique [0002] The applicant has applied for an invention patent "Nitrogen-free hot gas carbonization equipment and method for preparing particles from crushed bituminous coal straw" and other various forms of blue charcoal furnaces are: using its own carbonization to generate raw coal gas or burning gas to release heat energy at a temperature of 550-850°C into the The bituminous coal to be retorted is retorted in the furnace. The deficiency of this consumption of gas combustion to produce high-temperature gas input into the furnace for carbonization is that the gas mixed with the gas released by carbonization coal will be destroyed, reducing the use value of gas (coke gas) released by carbonization coal, from ...

AI Technical Summary

Problems solved by technology

The deficiency of this consumption of gas combustion to produce high-temperature gas input into the furnace for carbonization is that the gas mixed with the gas released by carbonization coal will be destroyed, reducing the use value of gas (coke gas) released by carbonization coal, from the original calorific value ≥ 4000kcal / m 3 High-quality nitrogen-free, low-carbon dioxide gas reduced to ≤1800kcal / m 3 , and mixed with a large amount of carbon dioxide and nitrogen, the cost of separation is high, and currently it can only be used to burn boilers

Images