A jet mill for eggshell crushing

Abstract

The invention provides a jet mill used for eggshell smashing. The jet mill comprises a shell, a charge cavity, an air-flow smashing cavity and a finished product cavity, wherein a charge hole is formed in the upper end of the shell, and a discharge hole is formed in the lower end of the shell; the charge hole is equipped with a sealing cover plate; the discharge hole is equipped with an unloadingvalve; the charge cavity is arranged on the upper part of the shell, and communicates with the charge hole; a first gas inlet tube which communicates with a pressurizing device thorough a first electric control valve is arranged on the side wall of the charge cavity; the air-flow smashing cavity is arranged on the middle part of the shell; the second gas inlet tube communicates with a pressurizingdevice through a second electric control valve; the finished product cavity is arranged below the air-flow smashing cavity, is positioned on the lower part of the shell and communicates with the discharge hole; and a charge device is arranged in the charge cavity for conveying eggshells to the air-flow smashing cavity from the charge cavity. According to the jet mill used for eggshell smashing provided by the invention, the charge cavity and the smashing cavity are separately arranged, so that charging, in an eggshell smashing process, by air flow is realized; and moreover, air flow does notoverflow during charging, so that non-stop operation is realized, and production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of crushing eggshells, in particular to a jet mill for crushing eggshells. Background technique [0002] At present, the basic composition of eggshells is CaCO3, the content is about 83-85%, protein 15-17%, and contains trace elements (zinc, copper, manganese, iron, selenium, etc.); eggshell powder has a wide range of purposes, such as Treatment of children with rickets, upper stomach pain, anti-inflammatory and pain relief, treatment of scalds, treatment of women's dizziness, treatment of diarrhea, extermination of ants, prevention of calcium deficiency in poultry and livestock; in the process of manufacturing eggshell powder, use a jet mill to complete the crushing of eggshells However, when the existing jet mill is feeding, the air flow needs to be stopped, or the feeding during the working process is likely to cause the internal air flow to overflow, thereby causing the pulverized material to overflow. ...

AI Technical Summary

Problems solved by technology

[0002] At present, the basic composition of eggshells is CaCO3, the content is about 83-85%, protein 15-17%, and contains trace elements (zinc, copper, manganese, iron, selenium, etc.); eggshell powder has a wide range of purposes, such as Treatment of children with rickets, upper stomach pain, anti-inflammatory and pain relief, treatment of scalds, treatment of women's dizziness, treatment of diarrhea, extermination of ants, prevention of calcium deficiency in poultry and livestock; in the process of manufacturing eggshell powder, use a jet mill to complete the crushing of eggshells process, but the existing airflow mill needs to stop the airflow when feeding, or the feeding in the working process may easily cause the internal airflow to overflow, so that the pulverized material overflows

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