Efficient negative-pressure crusher for preparation of ultra-fine powder

Abstract

The invention relates to the field of crushing equipment, in particular to an efficient negative-pressure crusher for preparation of ultra-fine powder. The efficient negative-pressure crusher for preparation of the ultra-fine powder comprises a case with a crushing cavity, a fixed grinding head arranged on the inner wall of the crushing cavity and a grinding disc rotationally arranged in the crushing cavity, wherein a movable grinding head is arranged on the grinding disc; the movable grinding head and the fixed grinding head are matched to be used for crushing materials; the case comprises a case body and a matching disc which is fixed onto the case body and encloses the crushing cavity with the case body; the matching disc and the grinding disc are in vertical sealing fit; and the case is provided with a negative-pressure connector which is communicated with the crushing cavity and connected with a negative pressure source to exhaust air from the crushing cavity. According to the efficient negative-pressure crusher for preparation of the ultra-fine powder provided by the invention, the negative-pressure connector is arranged, and the crushing cavity is subjected to air exhaust through the negative-pressure connector, so that the vacuum degree in the crushing cavity is guaranteed, the powder oxidation degree can be reduced in the crushing process, the powder quality can be improved, and meanwhile, combustion explosion is not likely to happen under the high-temperature condition.

Description

technical field

[0001] The invention relates to the field of pulverizing equipment, in particular to a high-efficiency negative pressure pulverizer used for the preparation of ultrafine powder. Background technique

[0002] Traditional powder preparation equipment has shortcomings such as low yield and large powder particles, which cannot meet the needs of the development of the new energy industry. The Chinese patent with the authorized announcement number CN202606236U and the authorized announcement date of 2012.12.19 discloses a spherical graphite pulverizer, which includes a body and an air intake chamber arranged below the body. The crushing chamber and the shunting chamber are separated by a shunting ring. There is a crushing disc at the bottom of the crushing chamber, and a crushing knife is set on the crushing disc. The walls of the crushing chamber are sheared and ground, and the airflow generated by the air inlet chamber makes the graphite particles roll upwards. ...

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