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Rare-earth ore treatment device

A processing device and rare earth ore technology, which is applied in the field of rare earth ore processing devices, can solve problems such as no relevant reports, and achieve the effect of extending the roasting path, uniform mineral temperature, and increasing equipment footprint

Inactive Publication Date: 2017-10-17
北京安康科创节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metallurgical colleges and enterprises have jointly developed the iron-bearing rare earth ore separation process of "rotary hearth furnace smelting separation-sulfuric acid roasting-water leaching" and are gradually improving. However, there are no relevant reports on the optimal equipment settings for this process. How to do this Transformation of process equipment to make it more optimized has become a technical problem that needs to be solved

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 and figure 2 as shown,

[0036] A rare earth ore processing device includes a rotary hearth furnace, a slag-iron separation device, a roasting furnace and a leaching tank.

[0037] The rotary hearth furnace includes a furnace wall, a furnace roof and a rotatable annular furnace bottom. A plurality of gas burners and a plurality of secondary air nozzles are installed at intervals on the furnace wall, and an arc-shaped movable partition wall is arranged. The arc-shaped movable partition can move between the feed port and the discharge port of the rotary hearth furnace along the track of the rotary hearth furnace, and the arc-shaped movable partition is sequentially moved along the rotation direction of the annular furnace bottom. There are preheating zone, low temperature reducing zone, high temperature melting zone, soaking zone and cooling zone.

[0038] The slag-iron separation device is used for separating the rare earth slag obtained after the ro...

Embodiment 2

[0055] A rare earth ore processing device includes a rotary hearth furnace, a slag-iron separation device, a roasting furnace and a leaching tank.

[0056] The rotary hearth furnace includes a furnace wall, a furnace roof and a rotatable annular furnace bottom. A plurality of gas burners and a plurality of secondary air nozzles are installed at intervals on the furnace wall, and an arc-shaped movable partition wall is arranged. The arc-shaped movable partition can move between the feed port and the discharge port of the rotary hearth furnace along the track of the rotary hearth furnace, and the arc-shaped movable partition is sequentially moved along the rotation direction of the annular furnace bottom. There are preheating zone, low temperature reducing zone, high temperature melting zone, soaking zone and cooling zone.

[0057] The slag-iron separation device is used for separating the rare earth slag obtained after the rotary hearth furnace treatment and the pearl iron.

...

Embodiment 3

[0074] A rare earth ore processing device includes a rotary hearth furnace, a slag-iron separation device, a roasting furnace and a leaching tank.

[0075] The rotary hearth furnace includes a furnace wall, a furnace roof and a rotatable annular furnace bottom. A plurality of gas burners and a plurality of secondary air nozzles are installed at intervals on the furnace wall, and an arc-shaped movable partition wall is arranged. The arc-shaped movable partition can move between the feed port and the discharge port of the rotary hearth furnace along the track of the rotary hearth furnace, and the arc-shaped movable partition is sequentially moved along the rotation direction of the annular furnace bottom. There are preheating zone, low temperature reducing zone, high temperature melting zone, soaking zone and cooling zone.

[0076] The slag-iron separation device is used for separating rare earth slag obtained after rotary hearth furnace treatment from iron products.

[0077] T...

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Abstract

The invention relates to a rare-earth ore treatment device comprising a rotary hearth furnace, a slag-iron separation device, a roasting furnace and a leaching pool. By improving of the devices, especially the specific structure of the roasting furnace, the whole rare-earth ore treatment process of treating in the rotary hearth furnace, separating, roasting and leaching is smoother, energy consumption is lower, the environmental-friendly degree is improved, and the rear earth separation efficiency and effect are improved.

Description

technical field [0001] The invention belongs to the field of rare earth ore processing devices, and in particular relates to a rare earth ore processing device. Background technique [0002] The extraction of rare earth ores is mainly divided into two methods: wet method and fire method. Southern ion-type ores are mainly treated by wet leaching, while other ores can be processed by sulfuric acid roasting and leaching. However, in the existing sulfuric acid roasting and leaching method, in order to increase the decomposition rate, the roasting temperature is set to close to 1000°C. Such a high temperature not only consumes a lot of energy, but also produces a large amount of harmful fumes, and the treatment of these fumes will cost a lot of time. resource. [0003] As we all know, rare earth ores are generally associated with other metal elements, and many rare earth ores in the north are associated with iron ore. With the improvement of environmental protection awareness, r...

Claims

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Application Information

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IPC IPC(8): C22B59/00C22B1/06C22B3/04
CPCC22B1/06C22B3/04C22B59/00Y02P10/20
Inventor 佘雪峰魏秀泉
Owner 北京安康科创节能环保科技有限公司
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