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Separation and recovery process of magnetic mud material

A separation and recovery, magnetic mud technology, applied in sludge treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of waste of resources, high recovery cost, low recovery rate of metal raw materials, etc. Achieving, low-cost effects

Active Publication Date: 2016-08-24
ANHUI JINSANLONG RENEWABLE RESOURCES
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] In the process of cutting NdFeB blanks into NdFeB magnets, a large amount of magnetic mud will be produced. The magnetic mud mainly contains iron powder, rare earth metal powder and cutting oil. The disposal of these magnetic mud not only pollutes the environment, Moreover, resources are wasted. For this reason, most enterprises now recycle iron powder, rare earth metals and oil in magnetic mud materials. In the process of recycling rare earth metals and other materials in magnetic mud materials, how to realize the separation of oil in magnetic mud materials It is one of the key technologies. In the prior art, it is generally separated and degreased by burning in air or boiling in water at high temperature with alkali. However, degreasing by the above method needs to consume a lot of energy resources, the recovery cost is high, and the metal raw materials The recovery rate is low, and it is difficult to meet the requirements of enterprises for energy saving and cost reduction

Method used

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  • Separation and recovery process of magnetic mud material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1) According to the mass ratio of 1:3, put the magnetic mud material and water from the feeding port 11 and the water feeding port 12 of the reaction tank 10 respectively, and stir the mixed solution of the magnetic mud material and water at a speed of 70r / min for 15min to react. The temperature in the pool 10 is controlled between 15-20°C;

[0015] 2) Place the gas vibration head 21 of the ultrasonic gas vibration device 20 in the reaction tank 10, start the ultrasonic gas vibration device 20 to perform ultrasonic vibration treatment on the mixed liquid in the reaction tank 10 for 15 minutes, and let it stand for 20 minutes until the mixed liquid is stratified;

[0016] 3) From top to bottom, the oil layer, water layer, and slag layer in the reaction tank 10 are respectively discharged and collected from the oil outlet 13, the water outlet 14, and the slag outlet 15 of the reaction tank. The purity of the oil in the oily substance discharged from 13 is 95%, and the oil...

Embodiment 2

[0018] 1) According to the mass ratio of 1:4, put the magnetic mud material and water from the feeding port 11 and the water feeding port 12 of the reaction tank 10 respectively, and stir the mixed solution of the magnetic mud material and water at a speed of 75r / min for 10min, and react The temperature in the pool 10 is controlled between 20-25°C;

[0019] 2) Place the gas vibration head 21 of the ultrasonic gas vibration device 20 in the reaction tank 10, start the ultrasonic gas vibration device 20 to perform ultrasonic vibration treatment on the mixed liquid in the reaction tank 10 for 20 minutes, and let it stand for 10 minutes until the mixed liquid is stratified;

[0020] 3) From top to bottom, the oil layer, water layer, and slag layer in the reaction tank 10 are respectively discharged and collected from the oil outlet 13, the water outlet 14, and the slag outlet 15 of the reaction tank. The purity of the oil in the oily substance discharged from 13 is 94%, and the oi...

Embodiment 3

[0022] 1) According to the mass ratio of 1:2.5, put the magnetic mud material and water from the feed port 11 and the water feed port 12 of the reaction tank 10 respectively, and stir the mixed solution of the magnetic mud material and water at a speed of 75r / min for 10min to react. The temperature in the pool 10 is controlled between 10-15°C;

[0023] 2) Place the gas vibration head 21 of the ultrasonic gas vibration device 20 in the reaction tank 10, start the ultrasonic gas vibration device 20 to perform ultrasonic vibration treatment on the mixed liquid in the reaction tank 10 for 10 minutes, and let it stand for 15 minutes until the mixed liquid is stratified;

[0024] 3) From top to bottom, the oil layer, water layer, and slag layer in the reaction tank 10 are respectively discharged and collected from the oil outlet 13, the water outlet 14, and the slag outlet 15 of the reaction tank. The purity of the oil in the oily substance discharged from 13 is 95%, and the oil con...

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Abstract

The invention relates to the field of magnet processing, particularly a separation and recovery technique of magnetic sludge, which comprises the following steps: 1) adding magnetic sludge and water into a reaction tank according to the mass ratio of 1:(2.5-4), stirring and mixing; 2) starting an ultrasonic gas vibrator to perform ultrasonic vibration treatment on the mixed solution in the reaction tank for 5-20 minutes, and standing for 15-30 minutes until the mixed solution stratifies; and 3) sequentially discharging and collecting the oil layer and water layer in the reaction tank from top to bottom, thereby obtaining the metal-material-containing slag left in the reaction tank. By adopting the technical scheme, the technique for separating and recovering magnetic sludge is low in cost and easy to implement; and the detection proves that the oil purity in the recovered oil substance is up to 94% above.

Description

technical field [0001] The invention relates to the field of magnet processing, in particular to a separation and recovery process of magnetic mud material. Background technique [0002] In the process of cutting NdFeB blanks into NdFeB magnets, a large amount of magnetic mud will be produced. The magnetic mud mainly contains iron powder, rare earth metal powder and cutting oil. The disposal of these magnetic mud not only pollutes the environment, Moreover, resources are wasted. For this reason, most enterprises now recycle iron powder, rare earth metals and oil in magnetic mud materials. In the process of recycling rare earth metals and other materials in magnetic mud materials, how to realize the separation of oil in magnetic mud materials It is one of the key technologies. In the prior art, it is generally separated and degreased by burning in air or boiling in water at high temperature with alkali. However, degreasing by the above method needs to consume a lot of energy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00
Inventor 唐宗贵李建林冷海军程振楠
Owner ANHUI JINSANLONG RENEWABLE RESOURCES