Device for automatically conducting cast iron inoculant screening and transporting and working method thereof

Abstract

The invention discloses a device for automatically conducting cast iron inoculant screening and transporting and a working method thereof. The device comprises an inoculant screening assembly, an inoculant conveying assembly, an inoculant stirring assembly and an inoculant feeding assembly; the inoculant screening assembly comprises a screening shell, a first screening mesh, a second screening mesh, a third screening mesh, an inoculant main feeding port and a material guiding assembly, and the inoculant main feeding port is arranged on the material guiding assembly; the inoculant conveying assembly is arranged at the lower end of the screening shell; and the inoculant stirring assembly can put an inoculant into the inoculant feeding assembly. According to the working method of the device for automatically conducting cast iron inoculant screening and transporting, the working principle is simple and feasible, the automation degree of the working process is high, needed manpower is less,the production efficiency is improved, the method is suitable for industrial large-scale application, the inoculant meeting the size requirements can be screened out through the multiples stages of screening meshes, and then the production and use requirements are met.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing and automation, in particular to a device for automatically screening and transporting cast iron inoculants. The invention also relates to a working method of a device for automatically screening and transporting cast iron inoculants. Background technique [0002] Cast iron is basically a eutectic alloy composed of iron, carbon and silicon, of which carbon mainly exists in the form of graphite; to produce high-quality castings, it is crucial to control the morphology of graphite formed when cast iron solidifies and the matrix metal structure ;Inoculation treatment is one of the most important links in the production process; a good inoculation treatment can make the cast iron have a microstructure that meets the requirements, thereby ensuring the mechanical properties and processing properties of the casting; adding an inoculant to the liquid cast iron can form a large amount of The submicro...

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Problems solved by technology

[0003] The inoculant is an additive that can promote the formation of graphite, reduce the tendency of whitening, improve the morphology and distribution of graphite, increase the number of eutectic groups, and refine the matrix structure. It is currently the most widely used 75 ferrosilicon inoculant; in the casting process , the molten iron in the ladle has a high temperature of about 1400 degrees Celsius. If there is powder in the inoculant, it will be oxidized and burned on the surface during the process of adding molten iron, and the inoculation effect cannot be achieved. Usually, the inoculant products are all particles with a particle size of 0.2 mm or more. The particle size below 0.2 mm is the dust loss. The more dust is produced, the greater the loss and the higher the cost. In the traditional inoculant production process, there will inevitably be powder, which is mainly transported and screened manually in the later stage of screening and bagging. The production efficiency is very low. During the transfer of inoculant particles, the scattered inoculant particles are often not well recycled. It will take a certain amount of time to manually collect them.

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