Air ring structure of a vertical roller mill

A vertical roller mill and air ring technology, which is applied in grain processing and other directions, can solve the problems of high air speed requirements, low sorting efficiency, and large wind resistance in the air ring, and achieve reduced powder concentration, good uniformity, and wind speed gradient. small effect

Active Publication Date: 2018-06-26
TIANJIN CEMENT IND DESIGN & RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides an air ring structure of a vertical roller mill to solve the technical problems of the existing vertical roller mill, such as high wind speed requirements, large wind resistance and low sorting efficiency, which exist in the known technology

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  • Air ring structure of a vertical roller mill
  • Air ring structure of a vertical roller mill
  • Air ring structure of a vertical roller mill

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Embodiment Construction

[0026] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples, and detailed descriptions are as follows with accompanying drawings:

[0027] See Figure 5-Figure 7 . An air ring structure of a vertical roller mill includes an air ring outer ring 1, an air ring inner ring 2 and an air guide body 3. A plurality of the air guide bodies 3 are fixed between the air ring outer ring 1 and the air ring inner ring 2. The air guiding body 3 is composed of a horizontal cover 3-1, a first air guiding plate 3-2 and a second air guiding plate 3-3. The horizontal cover 3-1, the first wind deflector 3-2 and the second wind deflector 3-3 are connected end to end in turn to form the wind deflector 3 with a triangular cross section. In this embodiment, the horizontal cover 3-1, the first wind deflector 3-2 and the second wind deflector 3-3 are connected by welding. The horizontal cover plate 3-1 and the first ai...

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Abstract

The invention relates to a wind ring structure of a vertical roller mill. The wind ring structure comprises a wing ring outer ring, a wind ring inner ring and wind guide bodies; and multiple wind guide bodies are fixed between the wind ring outer ring and the wind ring inner ring. The wind ring structure is characterized in that the wind guide bodies consist of horizontal cover plates, first wind guide plates and second wind guide plates; and the horizontal cover plates, the first wind guide plates and the second wind guide plates are connected end to end in sequence to form the air guide bodies with triangular cross sections. The wind ring can perform two times of impact dispersion for materials to improve the material layer stability and the powder milling efficiency, reduces the wind ring design wind speed requirements, improves the powder selection efficiency, reduces the quantity of fine powder returned to a grinding disc, improves the material layer stability, and improves the powder milling efficiency.

Description

Technical field [0001] The invention belongs to the technical field of cement production and processing equipment, and particularly relates to an air ring structure of a vertical roller mill. Background technique [0002] Vertical roller mill is abbreviated as vertical mill, and its grinding principle is material layer grinding, that is, the material is ground through mutual extrusion between particles. The grinding process has good controllability and high grinding efficiency. In the prior art, see the structural schematic diagram of the grinding unit of the vertical roller mill figure 1 , The working principle is briefly described as follows: [0003] The new feed and the return material of the separator are fed from the return bin of the separator to the top of the grinding disc of the vertical roller mill. The rotating grinding disc 6 drives the material on the grinding disc 6 to rotate, and the material moves from the center of the grinding disc 6 to the grinding disc under th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C15/00B02C23/20
CPCB02C15/001B02C15/007B02C23/20B02C2015/002
Inventor 豆海建王维莉杨伟刚杜鑫
Owner TIANJIN CEMENT IND DESIGN & RES INST
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