A powder raw material feeding mechanism for vanadium-nitrogen alloy production

Abstract

The invention provides a powder raw material feeding mechanism for the production of vanadium-nitrogen alloy, which includes a hollow screening plate, and a spiral spacer is arranged on the screening plate, and the spacer divides the inner cavity of the screening plate into spiral The starting point of the feeding channel is located at the outer edge of the screening disc, the end point of the feeding channel is located in the middle of the screening disc, the starting point of the feeding channel is a rotating shaft, and a number of blades are arranged outside the rotating shaft. The ventilation holes for the blades to blow air, the rotating shaft is a hollow structure, the upper end of the rotating shaft is provided with a hopper located above the screening disc, the feeding hopper is connected to the rotating shaft through a plane bearing, and the lower end of the rotating shaft is connected to the screening disc through a plane bearing , the feeding hopper is fixedly connected with the screening disc, and a number of feeding troughs connecting the feeding hopper and the feeding channel are provided on the rotating shaft. The invention has the advantages of being able to prevent backflow of powder raw materials and the like.

Description

technical field [0001] The invention relates to a production equipment of vanadium-nitrogen alloy, in particular to a powder raw material feeding mechanism for production of vanadium-vanadium-nitrogen alloy. Background technique [0002] As a new type of steel additive, vanadium-nitrogen alloy can replace ferro-vanadium for the production of micro-alloyed steel. It can improve the comprehensive mechanical properties of steel such as strength, toughness, ductility and thermal fatigue resistance, and make Steel has good weldability; at the same strength, adding vanadium-nitrogen alloy can save vanadium by 30% to 40% compared with adding vanadium, which reduces the cost; vanadium-nitrogen alloy has been widely used by domestic and foreign steel mills, and its production process and Production equipment has been developed rapidly. [0003] Vanadium-nitrogen alloy is a blank made of vanadium pentoxide, carbon powder, active agent and other raw materials. Under the protection of ...

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Problems solved by technology

[0005] At present, the powder of the raw material is filtered through a sieve to select the required particle size, and then various raw materials are mixed to make a spherical blank. Although this operation is simple and convenient, the particle size range of the powder is relatively large. Large, it is impossible to obtain powder raw materials with relatively uniform particle size, and it is also impossible to obtain raw materials with small particle size

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