Blade of sorting machine

Abstract

The invention relates to a blade of a sorting machine. The blade comprises a blade working face and a blade rear end installation base, wherein the blade is characterized in that the front section thickness of the blade working face is 24mm and the thickness of the rear end installation base is 16mm. The material of the blade comprises the following chemical components in percentage by weight: 0.35-0.40% of carbon, 20.00-24.00% of chromium, 9.50-12.00% of nickel, 0.80-1.40% of silicon, 1.00-2.00% of manganese, 0.20-0.50% of molybdenum, 0.20-0.50% of niobium, 0.20-0.50% of titanium, less than or equal to 0.04% of sulfur, less than or equal to 0.04% of phosphorus, 0.10-0.20% of rare earth yttrium and the balance of iron. The blade is prepared by adopting a smelting pouring process. In the material smelting process, rare earth yttrium and ferrotitanium are subjected to microalloying treatment. A thermal treatment process is sectional thermal treatment. The metallographic structure of the thermally treated material is austenite of which the hardness (HRC) is 38-40. The blade provided by the invention has the advantages of high strength, good toughness, low deformation rate, wear resistance, corrosion resistance, washing resistance and no adhesion of 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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