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Sintering equipment for producing alumina

A sintering equipment, alumina technology, applied in alumina/aluminum hydroxide, lighting and heating equipment, waste heat treatment, etc., can solve the problems of increasing the structure and operation complexity of sintering equipment, increasing production costs, and achieving a circular economy Benefit, save energy, reduce the effect of looping

Active Publication Date: 2012-08-22
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased the complexity of the structure and operation of the sintering equipment, leading to increased production costs

Method used

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  • Sintering equipment for producing alumina
  • Sintering equipment for producing alumina
  • Sintering equipment for producing alumina

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] Refer below figure 1 A sintering apparatus 100 according to an embodiment of the present invention is described.

[0033] like figure 1 As shown, the sintering equipment 100 according to the embodiment of the present invention includes a rotary kiln 1, a burner 2, a cooler 10, a cooler dust removal device 15, a primary cooler 12a, 12b, a secondary cooling fan 12c, 12d and a tail end dust removal device 14.

[0034] Burner 2 and the head end of rotary kiln 2 ( figure 1 The right end of the middle) is connected to supply fuel to...

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PUM

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Abstract

The invention discloses sintering equipment for producing alumina. The equipment comprises a rotary kiln, a burner, a cooler, a cooler dust collector, a primary cooling fan and a secondary cooling fan, wherein the rotary kiln is provided with a head end and a tail end; the burner is connected with the head end of the rotary kiln to supply fuel to the rotary kiln; the cooler is arranged at the head end of the rotary kiln and used for cooling sintered clinker discharged from the rotary kiln; the air inlet of the cooler dust collector is connected with the cooled tail gas outlet of the cooler; the air inlet of the primary cooling fan is connected with the air outlet of the cooler dust collector while the air outlet is connected with the cooler so as to blow hot clean tail gas dedusted by thecooler dust collector to the cooler; and the air outlet of the secondary cooling fan is connected with the cooler to blow air of which the temperature is lower than that of the hot clean tail gas to the cooler. The clinker sintered by the sintering equipment has the advantages of high alumina dissolution rate, low cost and good cyclic economic benefit.

Description

technical field [0001] The invention relates to a sintering device, in particular to a sintering device for producing alumina. Background technique [0002] Alumina is the main raw material for electrolytic aluminum smelting. At present, the vast majority of alumina production uses bauxite as raw material. The production method is mainly Bayer method, and a few use sintering method, Bayer-sintering series method, etc. [0003] In the process of producing alumina by sintering method or Bayer-sintering tandem method, it is necessary to sinter raw meal or Bayer process red mud, which is traditionally sintered by sintering equipment with a rotary kiln, and then the fired clinker is sintered Dissolution. [0004] The temperature of the fired clinker discharged from the rotary kiln is very high, so it needs to be cooled before dissolution. Traditionally, the fired clinker is naturally cooled by a cooling machine. However, the dissolution rate of the calcined clinker that is na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B7/00F27B7/20F27B7/34F27B7/38F27D17/00C01F7/02
Inventor 徐月和覃波徐华军刘建军曲修雁史更生
Owner CHINA ENFI ENGINEERING CORPORATION
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