An equipment for batch production of lanthanum calcium manganese oxide powder

Abstract

The invention relates to equipment for mass production of LaCaMnO powder, and belongs to the technical field of ceramic powder equipment. The equipment comprises a work frame system, a sol system, a gel system, a drying system, a crushing system, a sintering system and a conveying system, wherein the work frame system, the drying system, the crushing system and the sintering system are sequentially arranged on the same horizontal plane; the sol system is fixedly arranged on the work frame system; the gel system is arranged under the work frame system; the gel system is connected with one end of the conveying system; the other end of the conveying system sequentially passes through the work frame system, the drying system, the crushing system and the sintering system. In the production process, the raw materials are precisely controlled through the sol system; the sol can sufficiently react to obtain high-quality uniform colloid; the drying system uses a triplex composite fan blade anda heating powder box so that the colloid is uniformly dried; the crushing system uses a low-band high-frequency sound wave instrument for uniformly refining dry colloid; the frequency is regulated through a high-frequency generator; the sintering shaping is performed to obtain mass LaCaMnO powder.

Description

technical field [0001] The invention relates to equipment for batch production of lanthanum calcium manganese oxide powder, which belongs to the technical field of ceramic powder equipment. Background technique [0002] Doped perovskite manganese oxide La 1-x A x MnO 3 (A=Ca, Ba, Sr) has special electronic transport and magnetic properties, and has received a lot of attention, and is widely used in photoelectric fast devices, magnetic sensors, spin valve devices and giant magnetoresistive radiation Thermometer and other devices. At present, the main preparation of La in the experiment 1-x A x MnO 3 The most common methods are sol-gel method, solid phase method and chemical co-precipitation method. [0003] The sol-gel method has the following advantages: (1) the reactants are uniformly mixed at the molecular level; (2) can achieve uniform doping at the molecular level; (3) compared with solid-state reactions, chemical The reaction will be easy to carry out, and only ...

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Problems solved by technology

But there is no integrated equipment for producing lanthanum calcium manganese oxide powder at present, so that the sol-gel method has the following problems in the preparation of powder: (1) multiple steps, complicated operation process; (2) the amount of powder produced is small; ( 3) The required equipment is many and complex

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