Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel process for producing coal gangue ceramsite through dry-method powder preparation and static sintering
The embodiment of the invention discloses a novel process for producing coal gangue ceramsite through dry-method powder preparation and static sintering, and belongs to the technical field of comprehensive utilization of coal gangue. The specific technological process of the new process comprises the following steps: firstly, crushing and stockpiling and homogenizing coal gangue, carrying out dry-method powder preparation on the homogenized coal gangue and auxiliary materials, storing and homogenizing powder obtained by dry-method powder preparation in a homogenizing bin, humidifying and premixing homogenized raw material fine powder to form master batches, adding water into the master batches to prepare green ceramsite, sieving to obtain qualified green pellet particles; paving a bottom material and an edge material, then distributing green pellet particles into a trolley, and finally feeding the trolley on which the materials are distributed into a static sintering tunnel kiln through a trolley system for static sintering to produce the coal gangue ceramsite. Static sintering is adopted in the sintering section, ceramsite drying is achieved through waste heat circulation, hot air of the ceramsite soaking section serves as secondary air to be fed into the high-temperature section to be recycled in the roasting section, waste heat of the first cooling section serves as combustion-supporting air in a combustion-supporting mode, the combustion-supporting air temperature is increased, and fuel gas energy consumption is reduced.
本发明的实施例公开一种干法制粉静态烧结生产煤矸石陶粒的新工艺，属于煤矸石的综合利用的技术领域。所述新工艺的具体工艺流程先进行煤矸石的破碎和堆存均化，将均化好的煤矸石及辅料进行干法制粉，干法制粉得到的粉末在均化仓内储存均化，均化好的原料细粉增湿预混形成母粒，将母粒加水制成生坯陶粒，过筛获得合格的生球颗粒，铺底料及铺边料，之后将生球颗粒布料入台车，最后将布好料的台车经推车系统送入静态烧结隧道窑进行静态烧结生产煤矸石陶粒。本发明烧成段采用静态烧结，利用余热循环实现陶粒的干燥，焙烧段将陶粒均热段的热风作为二次风送入高温段进行再利用，助燃利用冷却一段余热作为助燃风，提高了助燃风温，节约了燃气能耗。
Novel process for producing coal gangue ceramsite through dry-method powder preparation and static sintering
The embodiment of the invention discloses a novel process for producing coal gangue ceramsite through dry-method powder preparation and static sintering, and belongs to the technical field of comprehensive utilization of coal gangue. The specific technological process of the new process comprises the following steps: firstly, crushing and stockpiling and homogenizing coal gangue, carrying out dry-method powder preparation on the homogenized coal gangue and auxiliary materials, storing and homogenizing powder obtained by dry-method powder preparation in a homogenizing bin, humidifying and premixing homogenized raw material fine powder to form master batches, adding water into the master batches to prepare green ceramsite, sieving to obtain qualified green pellet particles; paving a bottom material and an edge material, then distributing green pellet particles into a trolley, and finally feeding the trolley on which the materials are distributed into a static sintering tunnel kiln through a trolley system for static sintering to produce the coal gangue ceramsite. Static sintering is adopted in the sintering section, ceramsite drying is achieved through waste heat circulation, hot air of the ceramsite soaking section serves as secondary air to be fed into the high-temperature section to be recycled in the roasting section, waste heat of the first cooling section serves as combustion-supporting air in a combustion-supporting mode, the combustion-supporting air temperature is increased, and fuel gas energy consumption is reduced.
本发明的实施例公开一种干法制粉静态烧结生产煤矸石陶粒的新工艺，属于煤矸石的综合利用的技术领域。所述新工艺的具体工艺流程先进行煤矸石的破碎和堆存均化，将均化好的煤矸石及辅料进行干法制粉，干法制粉得到的粉末在均化仓内储存均化，均化好的原料细粉增湿预混形成母粒，将母粒加水制成生坯陶粒，过筛获得合格的生球颗粒，铺底料及铺边料，之后将生球颗粒布料入台车，最后将布好料的台车经推车系统送入静态烧结隧道窑进行静态烧结生产煤矸石陶粒。本发明烧成段采用静态烧结，利用余热循环实现陶粒的干燥，焙烧段将陶粒均热段的热风作为二次风送入高温段进行再利用，助燃利用冷却一段余热作为助燃风，提高了助燃风温，节约了燃气能耗。
Novel process for producing coal gangue ceramsite through dry-method powder preparation and static sintering
一种干法制粉静态烧结生产煤矸石陶粒的新工艺
XU SHUNTAO (Autor:in) / YAO CHANGQING (Autor:in) / LIU CHUNJIE (Autor:in) / ZHENG LINGQI (Autor:in)
16.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2021