Process and device for producing slurry of permanent ferrite prefiring material by wet method

Abstract

The invention relates to a wet method for manufacturing permanent magnetic ferrite pre-sintered slurry and a device. The method has the following steps: raw material is placed in a mixer, after adding water and blending, the material is put in a globe mill to be ground, then the slurry is sent to a stirring and storing tank to be stirred and is sent to a sand mill by a pump to be ground, components are analyzed and tested after being stirred and ground, and qualified slurry is sent to a rotary kiln, and unqualified slurry is adjusted continuously, stirred and ground with repeated cycle until granularity, moisture and components are qualified, which then is sent to the rotary kiln. The device consists of a mixer set, a water tank set, a globe mill set, a stirring and storing tank set, a delivery pump set and a sand mill set which are connected by pipes. The invention is provided with the mixer set, thus feed in and feed out time is short; the invention is provided with the sand mill set, thus leading the slurry to be stirred and ground continuously and repeatedly between the stirring tank and the sand mill until the contents of the granularity, moisture and components content are qualified. The method provided by the invention has the advantages of even mixture, stable product quality, small distribution range of slurry granularity, mass production, high efficiency and low labor intensity.

Description

technical field [0001] The invention relates to a method and device for wet production of permanent magnet ferrite calcined material. Background technique [0002] The current method for wet production of permanent magnet ferrite calcined material includes the following process steps: 1. Preparation of slurry; 2. Firing; 3. Grinding; 4. Packaging. Wherein the preparation of slurry adopts the device and ball mill as shown in Fig. 3 and 4. Its specific preparation method is: remove the door 19 of the band discharge port 12 on the ball mill, the upper hopper 20 is installed on the door of the ball mill (see Figure 4b), and the iron oxide red and additives weighed from the upper hopper 20 Throw it into the ball mill, add water according to the process requirements, remove the upper hopper, install the bin door 19 (see Figure 4a), grind the raw materials in the ball mill for a specified time, make them fully mixed and ground to a certain particle size, and grind the ground mater...

AI Technical Summary

Problems solved by technology

[0004] 1. When the ball mill feeds materials, it needs to remove the door 19 with the outlet 12 and install the upper hopper 20. After feeding, it is necessary to remove the upper hopper and install the door, which is quite troublesome, time-consuming, and labor-intensive for workers;

[0005] 2. The ground slurry is sent to the mixing storage tank for content detection after mixing and stirring. The unqualified slurry needs to be adjusted, and the required raw materials are added before stirring. Because there is no circulating abrasive device, the added material has not been ground. The particle size does not meet the requirements, and the slurry is difficult to mix evenly;

[0006] 3. Due to the small capacity of the mixing storage tank and low production efficiency, it is difficult to meet the needs of large-scale production

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