Vertical mill feeding chute device with fluidization function

Abstract

The invention relates to the technical field of feeding assembly devices in vertical mill equipment, in particular to a vertical mill feeding chute device with the fluidization function. The verticalmill feeding chute device with the fluidization function comprises a lower assembly and an upper assembly. The lower assembly comprises an upper plate. A first air port is formed in the upper plate. Breathable cloth, cloth protecting net and a protection grid are laid on the upper plate from bottom to top. The protection grid comprises a lower plate body. A second air port is formed in the lower plate body. A long side plate and a fluidization plate are arranged on the top surface of the lower plate body. The end, facing the material discharging side, of the top edge of the fluidization plateinclines. An air chamber is arranged below the upper plate. An air inlet is formed in the bottom surface of the air chamber. The upper assembly comprises a top plate and two side plates, wherein an n-shaped opening is formed by the top plate and the side plates. With the vertical mill feeding chute device with the fluidization function, fine powder in materials can go into a powder selecting machine for powder selection by being driven by a wind sweeper of a vertical mill, and does not fall to a millstone to be ground again, and therefore, the vertical mill feeding chute device with the fluidization function has the advantages that the working efficiency of the vertical mill is improved, the workload of the vertical mill is reduced, energy resources are saved, usage is convenient, the service life is long, and maintenance is convenient to carry out.

Description

technical field [0001] The present invention relates to the technical field of feeding assembly device in vertical mill equipment, especially relates to the fine powder in the material that can enter the powder classifier in advance under the drive of vertical mill wind sweeping for powder classifying, and does not fall on the grinding table for re-grinding A vertical mill feed chute device with fluidization function. Background technique [0002] At present, vertical mill products and technologies have been widely used in my country's cement industry, coal powder preparation industry, and slag powder preparation industry, but the application in the non-metallic ore milling industry is not ideal, especially when the raw materials to be ground are often When there is already a certain amount of finished fine powder, these fine powders are mixed with the materials to be ground, and are directly sent to the grinding disc inside the vertical mill for grinding. These fine powders ...

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Problems solved by technology

[0003] The present invention solves the problem that the feeding device of the vertical mill in the prior art only has the function of feeding and conveying, and does not have the function of powder selection. When feeding, a certain amount of finished fine powder in the principle will be mixed in the material, and if it is not selected, it will be recycled again. Falling to the grinding table for grinding, reducing the working efficiency of the vertical mill and increasing the workload of the vertical mill, resulting in the waste of energy. Based on the traditional feeding chute, an improved feeding chute with fluidization function (or chute), in actual production, when the raw material passes through the feeding chute, the fine powder in the material is fluidized and boiled by the fluidization function of the chute, and mixed with the wind blowing in the vertical mill cylinder, in the Driven by the sweeping wind of the vertical mill, it enters the powder separator in advance for powder selection, and does not fall on the grinding table for re-grinding

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