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A platform for research: civil engineering, architecture and urbanism
Spontaneous heating roasting method for coal gangue shale sintered bricks
The invention discloses a spontaneous heating roasting method for coal gangue shale sintered bricks. The method comprises the following steps: after coal gangue crushing is qualified, proportionally adding water and stirring, forming primary wet material, scattering the primary wet material from high altitude; the primary wet material freely falls from a certain height to realize sufficient dispersion, aging the dispersed primary wet material for a certain time; forming aged materials, adding water into the aged material in proportion and stirring; forming secondary wet material, extruding andmolding the secondary wet material; forming green bricks, wherein the green brick is completely made of coal gangue; drying of green bricks, carrying out high-temperature sintering, carrying out high-temperature sintering on the green brick by utilizing heat generated by combustion of coal gangue contained in the green brick, carrying out high-altitude scattering on the coal gangue powder to fully disperse the coal gangue powder so that particles of the wet coal gangue powder are defibered. The plasticity is high, the extrusion formability of the final wet coal gangue powder is improved; inthe roasting process of green bricks composed of all coal gangue powder, the heating of the green bricks can maintain the roasting temperature, and the cost is reduced.
一种煤矸石页岩烧结砖自发热焙烧方法，将煤矸石粉碎合格后，按比例加入水搅拌，形成一次湿料，将一次湿料从高空撒落，以使一次湿料从一定高度自由落体后，充分分散，将分散后的一次湿料陈化一定时间，形成陈化料，将陈化料按比例加入水搅拌，形成二次湿料，将二次湿料挤出成型，形成砖坯，所述砖坯全部由煤矸石制成，将砖坯干燥后，并高温烧结，利用砖坯自身含有的煤矸石燃烧生成的热量对砖坯进行高温烧结，煤矸石粉料经过高空撒料充分分散，使湿煤矸石粉料的颗粒疏解，塑性高，改善了最终湿煤矸石粉料的挤压成型性，湿煤矸石粉料的挤压成型不必加入粘接剂；全煤矸石粉料组成的砖坯在焙烧过程中，自身的发热可维持焙烧温度，降低了成本。
Spontaneous heating roasting method for coal gangue shale sintered bricks
The invention discloses a spontaneous heating roasting method for coal gangue shale sintered bricks. The method comprises the following steps: after coal gangue crushing is qualified, proportionally adding water and stirring, forming primary wet material, scattering the primary wet material from high altitude; the primary wet material freely falls from a certain height to realize sufficient dispersion, aging the dispersed primary wet material for a certain time; forming aged materials, adding water into the aged material in proportion and stirring; forming secondary wet material, extruding andmolding the secondary wet material; forming green bricks, wherein the green brick is completely made of coal gangue; drying of green bricks, carrying out high-temperature sintering, carrying out high-temperature sintering on the green brick by utilizing heat generated by combustion of coal gangue contained in the green brick, carrying out high-altitude scattering on the coal gangue powder to fully disperse the coal gangue powder so that particles of the wet coal gangue powder are defibered. The plasticity is high, the extrusion formability of the final wet coal gangue powder is improved; inthe roasting process of green bricks composed of all coal gangue powder, the heating of the green bricks can maintain the roasting temperature, and the cost is reduced.
一种煤矸石页岩烧结砖自发热焙烧方法，将煤矸石粉碎合格后，按比例加入水搅拌，形成一次湿料，将一次湿料从高空撒落，以使一次湿料从一定高度自由落体后，充分分散，将分散后的一次湿料陈化一定时间，形成陈化料，将陈化料按比例加入水搅拌，形成二次湿料，将二次湿料挤出成型，形成砖坯，所述砖坯全部由煤矸石制成，将砖坯干燥后，并高温烧结，利用砖坯自身含有的煤矸石燃烧生成的热量对砖坯进行高温烧结，煤矸石粉料经过高空撒料充分分散，使湿煤矸石粉料的颗粒疏解，塑性高，改善了最终湿煤矸石粉料的挤压成型性，湿煤矸石粉料的挤压成型不必加入粘接剂；全煤矸石粉料组成的砖坯在焙烧过程中，自身的发热可维持焙烧温度，降低了成本。
Spontaneous heating roasting method for coal gangue shale sintered bricks
煤矸石页岩烧结砖自发热焙烧方法
WANG ZHENTAO (author) / LI GUIPENG (author)
2020-11-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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