一种低阶煤的干燥干馏的组合提质工艺及系统

Drying and dry distillation combined quality improving process and system for low rank coal

Abstract

本发明公开了一种低阶煤的干燥干馏的组合提质工艺及系统,克服现有技术的不足之处,特别适用于含水量高的褐煤或其他低阶煤如长焰煤、不粘煤或弱粘煤和气煤等的干燥干馏组合提质。该工艺采用蒸汽回转干燥机干燥和多管回转低温干馏机干馏的组合提质方法,解决了单纯的干馏工艺存在的焦化废水处理量大、煤气处理量大等问题。本发明提供的干燥和多管回转低温干馏的组合提质工艺具有能量利用率高、系统安全稳定、干馏气体处理量小、焦化废水处理量小、焦油产率高、煤气热值高等优点。
The invention discloses a drying and dry distillation combined quality improving process and a drying and dry distillation combined quality improving system for low rank coal, which are used for overcoming the defects existing in the prior art and are particularly suitable for drying and dry distillation combined quality improvement of brown coal with high water content or other low rank coal such as long flame coal, non-caking coal or weakly caking coal, gas coal and the like. In the process, a combined quality improving method in which a steam revolving drier for drying and a multi-pipe revolving low-temperature dry distiller for dry distillation are provided is adopted, so that the problems of large coking wastewater handling capacity, large coal gas handling capacity and the like existing in a pure dry distillation process are solved. The drying and multi-pipe revolving low-temperature dry distillation combined quality improving process provided by the invention has the advantages of high energy utilization ratio, safe and stable systems, small dry distillation gas handling capacity, small coking wastewater handling capacity, high tar yield, high coal gas heat value and the like.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    CN-101760222-AJune 30, 2010山东天力干燥设备有限公司Novel fluidized bed semicoke production system and process thereof
    CN-101775296-AJuly 14, 2010清华大学Process and device for dry distillation of lignite on basis of coke-carried heat
    CN-101812310-AAugust 25, 2010河北理工大学High-efficiency lignite low-temperature dry distillation quality-enhancing process by using dry distillation coal gas as heat-carrying medium
    CN-101845312-ASeptember 29, 2010河北理工大学往复折返滚动床褐煤干燥干馏提质塔
    CN-202220155-UMay 16, 2012山东天力干燥股份有限公司Combined upgrading system for drying and destructive distillation of low rank coal

NO-Patent Citations (0)

    Title

Cited By (16)

    Publication numberPublication dateAssigneeTitle
    CN-102643703-AAugust 22, 2012山东天力干燥股份有限公司Novel external heating type lignite pyrolysis quality increasing system and process
    CN-102643703-BAugust 06, 2014山东天力干燥股份有限公司Novel external heating type lignite pyrolysis quality increasing system and process
    CN-102757800-AOctober 31, 2012北京国电龙源环保工程有限公司Low-temperature dry distillation equipment and method for low-rank coal and oil shale
    CN-102757800-BNovember 13, 2013北京国电龙源环保工程有限公司Low-temperature dry distillation equipment and method for low-rank coal and oil shale
    CN-102757805-AOctober 31, 2012北京国电龙源环保工程有限公司用于低阶煤、油页岩、石油残渣的低温干馏设备及方法
    CN-102757805-BAugust 28, 2013北京国电龙源环保工程有限公司Low-temperature dry distillation equipment and method of low-rank coal and oil shale and petroleum residue
    CN-102925176-AFebruary 13, 2013高荣, 李宁Rapid carbonization mass separation technology for low-rank coal
    CN-102925176-BApril 09, 2014高荣, 李宁用于低阶煤快速炭化分质的工艺
    CN-103146409-AJune 12, 2013蔡京鹏Lignite drying/low-temperature carbonization method with function of conducting heat by steam
    CN-103146454-AJune 12, 2013上海锅炉厂有限公司High-moisture brown coal pulverizing and drying apparatus and method thereof
    CN-103409156-ANovember 27, 2013天华化工机械及自动化研究设计院有限公司一种煤的热载体干馏系统及其方法
    CN-103409156-BOctober 22, 2014天华化工机械及自动化研究设计院有限公司一种煤的热载体干馏系统及其方法
    CN-104789244-AJuly 22, 2015陕西煤业化工集团神木天元化工有限公司, 华陆工程科技有限责任公司Gas-circulating method for pyrolysis production of anthracite in coal powder rotary furnace
    CN-105018118-ANovember 04, 2015肖自江, 肖志军, 肖志华, 肖志海, 聂子城, 毛光明Low-temperature pyrolysis method for pulverized coal and oil shale powder and external heating vertical type descending low-temperature pyrolysis furnace
    CN-105018119-ANovember 04, 2015肖自江, 肖志军, 肖志华, 肖志海, 聂子城, 毛光明External heating type descending low-temperature pyrolysis furnace for pulverized coal and oil shale powder
    WO-2014173054-A1October 30, 2014郑州永通特钢有限公司褐煤煤粉的干馏及熄焦系统和工艺