Mixing machine enhanced-granulating device

The technology of a mixer and a mixing drum is applied in the field of raw material processing equipment, which can solve the problems of small wetting area, reduced granulation effect, easy corrosion and rust, etc.

Pending Publication Date: 2019-02-12
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Abstract
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Problems solved by technology

[0006] Although the device solves the figure 1 The problem with the water spray device shown is that the spray hole is directly set on the water spray pipe, and the sprayed water is in a columnar flow, and the spray surface is narrow, the wetting area is small, and the degree of wetting of the material is uneven.
The material after one-mix granulation already contains a certain amount of water, and the material wetted by the columnar water flow will appear overwetting, and the prepared pellets will be muddy to reduce the granulation effect and the air permeability of the material layer w

Method used

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Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] In this article, the terms "up, down, inside, and outside" are established based on the positional relationship shown in the drawings. Depending on the drawings, the corresponding positional relationship may also change accordingly. Therefore, it cannot be It is understood as an absolute limitation on the scope of protection; moreover, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or Imply any such actual relationship or order between these components.

[0043] The air permeability of the sintered material layer is a very important state parameter in the sintering process, which reflects the difficulty of the sintered material ...

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Abstract

The invention discloses a mixing machine enhanced-granulating device which comprises a combined water spraying device and a fixed support for supporting the combined water spraying device. The combined water spraying device comprises only one water spraying main pipe for feeding hot water or steam; the water spraying main pipe stretches into a mixing barrel from a feed inlet of the mixing barrel of a mixing machine; water spraying points are distributed at different positions on the water spraying main pipe in the length direction; water distributing pipes are arranged on the water spraying points; and atomizers are arranged on the water distributing pipes. The device is reasonable in structure, a granulating effect (+3mm sphere content) can be remarkably improved, the mixing machine enhanced-granulating production is realized, the material layer air permeability is improved, a higher index requirement on sintering production is met, and the energy utilization ratio is improved.

Description

Technical field [0001] The invention relates to raw material processing equipment in metallurgy, mining and other industries, in particular to a secondary mixer for mixing and granulating mineral raw materials before sintering production. Background technique [0002] Sinter is the main iron-containing charge for blast furnace iron production in China. In 2016, the output of sinter in China exceeded 900 million tons. During the sintering process, the granulation effect of the mixture determines the air permeability of the sintered material layer. The air permeability of the material layer directly affects the utilization factor of the sintering machine and the power consumption of the main exhaust fan. On the premise of ensuring that the combustion front and the heat transfer front of the sintering process are consistent, the better the air permeability of the sintering material layer, the better the sintering machine The higher the utilization factor, the lower the power consump...

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Application Information

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IPC IPC(8): C22B1/24
CPCC22B1/2406
Inventor 胡兵贺新华王兆才
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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