A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Calcining process of dolomite sand
The invention discloses a calcining process of dolomite sand, which comprises the following steps of: crushing a dolomite raw material into particles with the particle size of below 10mm; then feedingthe dolomite particles into a homogenization silo for homogenization; crushing an iron raw material into particles with the particle size of less than 1mm; mixing the iron raw material particles andthe homogenized dolomite particles according to the weight ratio of 1: 100 to 5: 100; feeding the mixture into a rotary kiln for calcining in an oxygen-enriched combustion mode; pulverizing fuel and then spraying the pulverized fuel into the rotary kiln, spraying high-concentration oxygen into the rotary kiln through a special oxygen spraying device, enabling the fuel to be fully combusted under oxygen-enriched combustion supporting, and calcining the fuel into a dolomite sintered material at the material sintering temperature of 1500-1700 DEG C; and obtaining a finished dolomite sand productafter cooling. According to the calcined dolomite sand, the sintering temperature of the dolomite sand is reduced by doping the iron raw material, the energy consumption in the dolomite sand preparation process is greatly reduced, the production cost of the dolomite sand is reduced, the economic benefits of dolomite refractory brick production enterprises are improved, and the market prospect is wide.
本发明公开了一种白云石砂的煅烧工艺，包括以下步骤：将白云石原料破碎至粒径为10mm以下的颗粒，然后送入均化库内均化，铁质原料破碎至粒径为1mm以下的颗粒，将铁质原料颗粒与均化后的白云石颗粒按重量比1:100～5:100配料混合，将混合料送入回转窑中煅烧，回转窑煅烧采用富氧燃烧，将燃料粉磨后喷入回转窑，将高浓度氧气通过专用氧气喷射装置喷入回转窑中，燃料在富氧助燃下充分燃烧，在物料烧结温度1500～1700℃下煅烧成白云石烧结料，冷却后得到白云石砂成品。本发明煅烧的白云石砂，通过掺加铁质原料降低白云石砂的烧结温度，大幅降低白云石砂制备过程中的能源消耗，降低白云石砂的生产成本，提高白云石质耐火砖生产企业的经济效益，市场前景广阔。
Calcining process of dolomite sand
The invention discloses a calcining process of dolomite sand, which comprises the following steps of: crushing a dolomite raw material into particles with the particle size of below 10mm; then feedingthe dolomite particles into a homogenization silo for homogenization; crushing an iron raw material into particles with the particle size of less than 1mm; mixing the iron raw material particles andthe homogenized dolomite particles according to the weight ratio of 1: 100 to 5: 100; feeding the mixture into a rotary kiln for calcining in an oxygen-enriched combustion mode; pulverizing fuel and then spraying the pulverized fuel into the rotary kiln, spraying high-concentration oxygen into the rotary kiln through a special oxygen spraying device, enabling the fuel to be fully combusted under oxygen-enriched combustion supporting, and calcining the fuel into a dolomite sintered material at the material sintering temperature of 1500-1700 DEG C; and obtaining a finished dolomite sand productafter cooling. According to the calcined dolomite sand, the sintering temperature of the dolomite sand is reduced by doping the iron raw material, the energy consumption in the dolomite sand preparation process is greatly reduced, the production cost of the dolomite sand is reduced, the economic benefits of dolomite refractory brick production enterprises are improved, and the market prospect is wide.
本发明公开了一种白云石砂的煅烧工艺，包括以下步骤：将白云石原料破碎至粒径为10mm以下的颗粒，然后送入均化库内均化，铁质原料破碎至粒径为1mm以下的颗粒，将铁质原料颗粒与均化后的白云石颗粒按重量比1:100～5:100配料混合，将混合料送入回转窑中煅烧，回转窑煅烧采用富氧燃烧，将燃料粉磨后喷入回转窑，将高浓度氧气通过专用氧气喷射装置喷入回转窑中，燃料在富氧助燃下充分燃烧，在物料烧结温度1500～1700℃下煅烧成白云石烧结料，冷却后得到白云石砂成品。本发明煅烧的白云石砂，通过掺加铁质原料降低白云石砂的烧结温度，大幅降低白云石砂制备过程中的能源消耗，降低白云石砂的生产成本，提高白云石质耐火砖生产企业的经济效益，市场前景广阔。
Calcining process of dolomite sand
一种白云石砂的煅烧工艺
HUANG XINJIANG (author) / ZHU MINGSHENG (author) / LU JUN (author) / LI HONGZHOU (author) / ZHANG ANPING (author) / SHAO JIE (author) / SUN CHUANYI (author)
2020-10-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Four-hearth shaft kiln for dolomite calcination and dolomite calcining method thereof
| European Patent Office | 2020
Dolomite calcining furnace and control method and device
| European Patent Office | 2024
Phosphogypsum calcining system and phosphogypsum calcining process
| European Patent Office | 2015
Clean environment-friendly calcining furnace and method for indirectly treating dolomite
| European Patent Office | 2022
Limestone calcining production equipment and calcining process thereof
| European Patent Office | 2024