A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Production process of nano calcium carbonate powder
The invention provides a production process of nano calcium carbonate powder, and relates to the technical field of calcium carbonate, and the production process comprises the following steps: S1, introducing quicklime and hot soft water into a cleaning machine, heating, mixing, discharging slag, and storing obtained coarse slurry in a coarse slurry tank; s2, the coarse pulp is introduced into a cyclone hydraulic separator for separation, residues are discharged, the pulp is discharged into a refined pulp tank for refrigeration, a crystal guiding agent is introduced, and refined pulp is obtained; s3, introducing the refined pulp into three towers for three-step rectification, synchronously introducing carbon dioxide, and refrigerating through a two-step raw pulp tank; clear water generated in the whole production process is discharged into a production line of light calcium carbonate, the clear water and the light calcium carbonate are jointly produced to recycle and purify the clear water, discharged slag is washed with water and then matched with clay and the like to prepare green bricks, three-tower tail gas is used for aging to obtain finished bricks, and the finished bricks and brick making are jointly produced to recycle waste residues. And carbonization tail gas is recycled in the green brick aging process, so that zero pollution and zero emission of nano calcium carbonate production are realized, and the method is more environment-friendly.
本发明提供了一种纳米碳酸钙粉的生产工艺，涉及碳酸钙技术领域，包括以下步骤：S1：将生石灰和热软水通入清化机，进行加热混合，排出渣，获得粗浆储存在粗浆槽；S2：将粗浆通入旋液分离器分离出渣排出，将浆液排入精浆槽制冷并通入晶导剂，获得精浆；S3：将精浆通入三塔进行三步精馏，同步通入二氧化碳，经过两步生浆槽制冷；本发明将整个生产工艺中产生的清水排入轻质碳酸钙的生产线中，与轻质碳酸钙联合生产以循环回收和净化清水，将排出的渣水洗后，配合粘土等制成砖坯，通过三塔尾气进行陈化来获得成品砖，与制砖联合生产以回收利用废渣，并利用砖胚陈化过程以循环回收碳化尾气，从而实现纳米碳酸钙生产零污染、零排放，更加环保。
Production process of nano calcium carbonate powder
The invention provides a production process of nano calcium carbonate powder, and relates to the technical field of calcium carbonate, and the production process comprises the following steps: S1, introducing quicklime and hot soft water into a cleaning machine, heating, mixing, discharging slag, and storing obtained coarse slurry in a coarse slurry tank; s2, the coarse pulp is introduced into a cyclone hydraulic separator for separation, residues are discharged, the pulp is discharged into a refined pulp tank for refrigeration, a crystal guiding agent is introduced, and refined pulp is obtained; s3, introducing the refined pulp into three towers for three-step rectification, synchronously introducing carbon dioxide, and refrigerating through a two-step raw pulp tank; clear water generated in the whole production process is discharged into a production line of light calcium carbonate, the clear water and the light calcium carbonate are jointly produced to recycle and purify the clear water, discharged slag is washed with water and then matched with clay and the like to prepare green bricks, three-tower tail gas is used for aging to obtain finished bricks, and the finished bricks and brick making are jointly produced to recycle waste residues. And carbonization tail gas is recycled in the green brick aging process, so that zero pollution and zero emission of nano calcium carbonate production are realized, and the method is more environment-friendly.
本发明提供了一种纳米碳酸钙粉的生产工艺，涉及碳酸钙技术领域，包括以下步骤：S1：将生石灰和热软水通入清化机，进行加热混合，排出渣，获得粗浆储存在粗浆槽；S2：将粗浆通入旋液分离器分离出渣排出，将浆液排入精浆槽制冷并通入晶导剂，获得精浆；S3：将精浆通入三塔进行三步精馏，同步通入二氧化碳，经过两步生浆槽制冷；本发明将整个生产工艺中产生的清水排入轻质碳酸钙的生产线中，与轻质碳酸钙联合生产以循环回收和净化清水，将排出的渣水洗后，配合粘土等制成砖坯，通过三塔尾气进行陈化来获得成品砖，与制砖联合生产以回收利用废渣，并利用砖胚陈化过程以循环回收碳化尾气，从而实现纳米碳酸钙生产零污染、零排放，更加环保。
Production process of nano calcium carbonate powder
一种纳米碳酸钙粉的生产工艺
NIU ZHENNING (author) / KAGETEI (author) / ZHONG PENGFEI (author) / ZHANG XIUDONG (author)
2024-03-22
Patent
Electronic Resource
Chinese
IPC:
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C04B
Kalk
,
LIME