sorter blade

Abstract

The invention relates to a sorter blade, which includes a blade working surface and a blade rear mounting seat, and is characterized in that: the thickness of the front section of the blade working surface is 24mm, and the thickness of the blade rear mounting seat is 16mm; The weight percent chemical composition of the blade material is as follows: C carbon: 0.35%-0.40%; Cr chromium: 20.00%-24.00%; Ni nickel: 9.50%-12.00%-; -Si silicon: 0.80%-1.40%; Mn manganese: 1.00%-2.00%; Mo molybdenum: 0.20%-0.50%; Nb niobium: 0.20%-0.50%; Ti titanium: 0.20-0.50%; S sulfur ≤ 0.04%; P phosphorus ≤ 0.04%; rare earth yttrium (RE-? Y) 0.10%-0.20%; the balance is iron (Fe); it is made by melting and pouring process, and the rare earth yttrium and ferrotitanium are used for microalloying treatment in the material melting process; the heat treatment process adopts segmented heat treatment, and the heat treated The metallographic structure of the blade material of the classifier is austenite, and the Rockwell hardness (HRC) is 38-40. Its advantages are: high strength, good toughness, not easy to deform, wear-resistant, corrosion-resistant, erosion-resistant, and non-adhesive to ash.

Description

technical field [0001] The invention relates to a classifier blade, which belongs to the field of classifier blade structure and metallurgical materials. technical background [0002] Air pollution is becoming more and more serious, which puts higher and stricter requirements on the production of enterprises. In the past, the ashes from power plants and heating plants were dumped or not utilized better. Now, renewable energy and environmental protection enterprises turn waste into protection, and use a set of equipment such as sorting machines to process it. The ash is sorted and processed into: cement raw materials, alumina raw materials, and a large number of bricks for building buildings. This kind of brick has a hard material, good heat insulation and light weight, which replaces the traditional brick. Sorter blades are the heart of the industry. However, the sorter blades are the key vulnerable components. At present, they are generally made of ordinary steel or ge...

AI Technical Summary

Problems solved by technology

At present, they are generally made of ordinary steel or general alloy steel. These materials have three problems: 1. Not wear-resistant, not corrosion-resistant

2 Wear-resistant, but the hardness is too high, no toughness, easy to break during operation

These blades have a short service life and are often forced to stop for replacement, which not only reduces production efficiency, increases the labor intensity of workers, but also increases the investment in the blades of the sorter, causing huge economic losses to the enterprise

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