Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing heat-insulating refractory castable from ferronickel slag
The invention belongs to the field of solid waste resource utilization, and particularly discloses a method for preparing a heat-insulating refractory castable from ferronickel slag, which comprises the following steps: uniformly mixing ferronickel slag particles and a binding agent to obtain a mixture; and adding mixed water into the mixture, and carrying out stirring, casting molding, curing, demolding, drying and heat treatment to obtain the refractory castable, the ferronickel slag particles comprise particles A, particles B, particles C and particles D in a weight ratio of (11-13): (21-23): (30-32): (19-21); the particle size of the particle A is not less than 3mm and not more than 5mm, the particle size of the particle B is not less than 1mm and not more than 3mm, the particle size of the particle C is not less than 0.15 mm and not more than 1mm, and the particle size of the particle D is-0.074 mm; in the mixture, the content of the ferronickel slag particles is 80-90 wt.%; the temperature of the heat treatment is 1230-1280 DEG C. According to the preparation method provided by the invention, the ferronickel slag can be utilized to the greatest extent, and the production method is simple and easy to implement; the prepared refractory castable is excellent in heat insulation performance, and industrial production is facilitated.
本发明属于固废资源利用领域，具体公开了一种镍铁渣制备隔热耐火浇注料的方法，将镍铁渣颗粒和结合剂混匀制得混合料；向所述混合料加入混合水，经搅拌、浇注成型、养护、脱膜、干燥、热处理后即得所述耐火浇注料；所述镍铁渣颗粒包括重量比为11～13:21～23:30～32:19～21的颗粒A，颗粒B，颗粒C和颗粒D；3mm≤颗粒A粒径≤5mm，1mm≤颗粒B粒径＜3mm，0.15mm≤颗粒C粒径＜1mm，颗粒D粒径为‑0.074mm；混合料中，镍铁渣颗粒的含量为80～90wt.％；热处理的温度为1230～1280℃。本发明所提出的制备方法能够最大程度地利用镍铁渣，生产方法简单易行；所制备的耐火浇注料隔热性能优良，有利于实现工业化生产。
Method for preparing heat-insulating refractory castable from ferronickel slag
The invention belongs to the field of solid waste resource utilization, and particularly discloses a method for preparing a heat-insulating refractory castable from ferronickel slag, which comprises the following steps: uniformly mixing ferronickel slag particles and a binding agent to obtain a mixture; and adding mixed water into the mixture, and carrying out stirring, casting molding, curing, demolding, drying and heat treatment to obtain the refractory castable, the ferronickel slag particles comprise particles A, particles B, particles C and particles D in a weight ratio of (11-13): (21-23): (30-32): (19-21); the particle size of the particle A is not less than 3mm and not more than 5mm, the particle size of the particle B is not less than 1mm and not more than 3mm, the particle size of the particle C is not less than 0.15 mm and not more than 1mm, and the particle size of the particle D is-0.074 mm; in the mixture, the content of the ferronickel slag particles is 80-90 wt.%; the temperature of the heat treatment is 1230-1280 DEG C. According to the preparation method provided by the invention, the ferronickel slag can be utilized to the greatest extent, and the production method is simple and easy to implement; the prepared refractory castable is excellent in heat insulation performance, and industrial production is facilitated.
本发明属于固废资源利用领域，具体公开了一种镍铁渣制备隔热耐火浇注料的方法，将镍铁渣颗粒和结合剂混匀制得混合料；向所述混合料加入混合水，经搅拌、浇注成型、养护、脱膜、干燥、热处理后即得所述耐火浇注料；所述镍铁渣颗粒包括重量比为11～13:21～23:30～32:19～21的颗粒A，颗粒B，颗粒C和颗粒D；3mm≤颗粒A粒径≤5mm，1mm≤颗粒B粒径＜3mm，0.15mm≤颗粒C粒径＜1mm，颗粒D粒径为‑0.074mm；混合料中，镍铁渣颗粒的含量为80～90wt.％；热处理的温度为1230～1280℃。本发明所提出的制备方法能够最大程度地利用镍铁渣，生产方法简单易行；所制备的耐火浇注料隔热性能优良，有利于实现工业化生产。
Method for preparing heat-insulating refractory castable from ferronickel slag
一种镍铁渣制备隔热耐火浇注料的方法
PENG ZHIWEI (Autor:in) / LI GUANGHUI (Autor:in) / FAN WANLONG (Autor:in) / JIANG TAO (Autor:in) / RAO MINGJUN (Autor:in) / LUO JUN (Autor:in) / TANG HUIMIN (Autor:in) / YE LEI (Autor:in) / XIANG CHAOJUN (Autor:in)
10.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Ferrovanadium slag-asbestos tailing refractory castable
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2018