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Calcination method for raising daily output of rare earth carbonate

A technology of rare earth carbonate and daily output, applied in the field of material science, can solve the problems of high labor consumption, low production efficiency, high energy consumption, etc., and achieve the effect of improving safety

Inactive Publication Date: 2016-01-27
INNER MONGOLIA SHENGYILUN RARE EARTH MATERIAL CO LTD
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a roasting method for increasing the daily output of rare earth carbonate in order to solve the problems of excessive manpower consumption, long rare earth oxide roasting cycle, low production efficiency and large energy consumption in the existing rare earth carbonate roasting process

Method used

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  • Calcination method for raising daily output of rare earth carbonate
  • Calcination method for raising daily output of rare earth carbonate
  • Calcination method for raising daily output of rare earth carbonate

Examples

Experimental program
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Embodiment 1

[0026] A kind of roasting method that improves daily output of rare earth carbonate, concrete steps are as follows:

[0027] Step 1: NdPr carbonate enters the conveying pipe and uses the dry hot air provided by the hot blast stove to dry the material, and with the power provided by the induced draft fan, the NdPr carbonate with a total mass greater than 70% is separated and unloaded by a cyclone separator ;

[0028] Step 2. The materials taken away by the wind during the separation process are collected through the bag for dust collection, and then discharged through the bag dust collection discharge port;

[0029] Step 3, put the blanking material obtained in step 1 and step 2 into the kiln head receiving hopper, and then feed the material into the rotary kiln at a stable and uniform speed by controlling the frequency of the auger;

[0030] Step 4. The material is turned over in the kiln through the large and small lifting plates on the wall of the cylinder, and the retainin...

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Abstract

The invention relates to a calcination method for raising daily output of rare earth carbonate and belongs to the field of material science. According to the calcination method, combination equipment of rotary kiln dynamic calcination equipment, a cyclone separator and cloth bag dust collection equipment is utilized, rare earth carbonate calcination can be shifted from original intermittent production to continuous production, production efficiency is improved, the production cycle is shortened, manpower consumption is decreased, dynamic calcination is achieved, and meanwhile energy consumption is lowed.

Description

technical field [0001] The invention relates to a roasting method for increasing the daily output of rare earth carbonate, belonging to the field of material science. Background technique [0002] The existing pretreatment of rare earth carbonate before roasting is to dehydrate and centrifuge the rare earth carbonate slurry that has undergone carbon precipitation treatment through a scraper centrifuge to obtain a relatively dry rare earth carbonate material. Such pretreatment has the following problems: 1. High manpower consumption; 2. Low production safety; 3. Low production efficiency; and 4. Humidity of the material after treatment. [0003] The existing rare earth roasting technologies are mainly clay kiln roasting and tunnel kiln roasting. Soil-packed kiln roasting technology needs to manually put rare earth carbonate into a bowl and place it in the soil-packed kiln for roasting. After the roasting is completed, it needs to wait for the temperature to drop. When the te...

Claims

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Application Information

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IPC IPC(8): C01F17/00
Inventor 汤闳钦王万勇肖武松
Owner INNER MONGOLIA SHENGYILUN RARE EARTH MATERIAL CO LTD
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