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Method for preparing environment-friendly brick from nickel wet smelting slag and water quenching slag
The invention discloses a method for preparing an environment-friendly brick from nickel wet smelting slag and water quenching slag. The method comprises the following steps: uniformly mixing nickel slag, water-quenched slag and shale according to the mass ratio of (10-20): (5-20): (60-80) to obtain a raw material; uniformly mixing the raw material with water according to a mass ratio of 1: (0.001-0.05), aging, performing compression molding, drying, and controlling the water content to be less than 5% to obtain a dried green brick; and carrying out high-temperature roasting on the dried green brick to obtain the environment-friendly brick. According to the method, the characteristics of the shale are utilized, the shale, the nickel wet-process smelting slag and the water-quenched slag are mixed and roasted, the nickel wet-process smelting slag and the water-quenched slag are treated at the same time, the problem that the nickel wet-process smelting slag is difficult to treat is effectively solved, the heavy metal leaching risk of the nickel wet-process smelting slag is remarkably reduced, the effects of simultaneous treatment and utilization of two kinds of solid waste and hazardous waste, energy conservation and environmental protection are achieved.
本发明公开了一种利用镍湿法冶炼渣和水淬渣制备环保砖的方法，其步骤包括：将镍渣、水淬渣和页岩按质量比(10～20)：(5～20)：(60～80)混合均匀，得到生料；将生料与水按质量比1：(0.001～0.05)混合均匀，陈化后压制成型，干燥并控制含水率小于5％，得到干燥砖坯；干燥砖坯经过高温焙烧工序后，得到环保砖。本发明利用页岩的特性，与镍的湿法冶炼渣、水淬渣混合焙烧，实现了对镍的湿法冶炼渣和水淬渣的同时处理，有效解决镍的湿法冶炼渣难以处理的问题，显著降低了镍的湿法冶炼渣的重金属浸出风险，实现了两种固废危废同时处理利用且节能环保的效果。
Method for preparing environment-friendly brick from nickel wet smelting slag and water quenching slag
The invention discloses a method for preparing an environment-friendly brick from nickel wet smelting slag and water quenching slag. The method comprises the following steps: uniformly mixing nickel slag, water-quenched slag and shale according to the mass ratio of (10-20): (5-20): (60-80) to obtain a raw material; uniformly mixing the raw material with water according to a mass ratio of 1: (0.001-0.05), aging, performing compression molding, drying, and controlling the water content to be less than 5% to obtain a dried green brick; and carrying out high-temperature roasting on the dried green brick to obtain the environment-friendly brick. According to the method, the characteristics of the shale are utilized, the shale, the nickel wet-process smelting slag and the water-quenched slag are mixed and roasted, the nickel wet-process smelting slag and the water-quenched slag are treated at the same time, the problem that the nickel wet-process smelting slag is difficult to treat is effectively solved, the heavy metal leaching risk of the nickel wet-process smelting slag is remarkably reduced, the effects of simultaneous treatment and utilization of two kinds of solid waste and hazardous waste, energy conservation and environmental protection are achieved.
本发明公开了一种利用镍湿法冶炼渣和水淬渣制备环保砖的方法，其步骤包括：将镍渣、水淬渣和页岩按质量比(10～20)：(5～20)：(60～80)混合均匀，得到生料；将生料与水按质量比1：(0.001～0.05)混合均匀，陈化后压制成型，干燥并控制含水率小于5％，得到干燥砖坯；干燥砖坯经过高温焙烧工序后，得到环保砖。本发明利用页岩的特性，与镍的湿法冶炼渣、水淬渣混合焙烧，实现了对镍的湿法冶炼渣和水淬渣的同时处理，有效解决镍的湿法冶炼渣难以处理的问题，显著降低了镍的湿法冶炼渣的重金属浸出风险，实现了两种固废危废同时处理利用且节能环保的效果。
Method for preparing environment-friendly brick from nickel wet smelting slag and water quenching slag
一种利用镍湿法冶炼渣和水淬渣制备环保砖的方法
XU KAIHUA (author) / XUE QINGHUA (author) / YE BIAO (author) / ZHU JUN (author) / HUANG DONGBO (author)
2021-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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