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Device for preparing aluminum oxide self-efflorescence grog by fusion method and preparation method thereof

A technology of alumina and melting method, which is applied in the direction of alumina/hydroxide, etc., can solve the problems of high qualified rate of alumina clinker, and achieve the effects of saving energy consumption, simple operation, complete and rapid reaction

Active Publication Date: 2007-02-28
内蒙古蒙西鄂尔多斯铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the source of raw materials is the solid pollutants discharged from thermal power plants—fly ash, its A / s is 0.8-1.2, and there is still no good method and equipment for alumina production using fly ash at present, and At the same time, the method and equipment for making the qualified rate of alumina clinker high

Method used

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  • Device for preparing aluminum oxide self-efflorescence grog by fusion method and preparation method thereof
  • Device for preparing aluminum oxide self-efflorescence grog by fusion method and preparation method thereof
  • Device for preparing aluminum oxide self-efflorescence grog by fusion method and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: As shown in Figure 1, Figure 2, Figure 3, and Figure 4, the equipment for producing alumina self-powdering clinker by melting method includes a high-temperature fan 1, a hot air pipe 2, a calcining kiln 3, and a rotary distributor 4 , Elevator 5, cooler 6, dust collector 7, chimney 8, waste gas fan 9, feeding conveyor 11, waste gas pipe 12, communicate with cooler 6 and unloader 10. One end of the high-temperature fan 1 is connected to the secondary hot air pipe 13, the other end of the high-temperature fan 1 is connected to the hot air outlet of the hot air pipe 2 of the cooler, and the upper and lower ends of the secondary hot air pipe 13 are respectively connected to the calciner. 3 The upper and lower air chambers 14 and 15 of the outer wall, the feeding conveyor 11 is connected with the hoist 5, the hoist 5 is connected with the rotary distributor 4, and a feed inlet 17 is provided at the top of the calcining kiln 3, and the rotary distributor 4 is connec...

Embodiment 2

[0040] Embodiment 2: as shown in Figure 5, utilize the equipment of embodiment 1 to adopt the method for producing alumina self-powdering clinker prepared by melting method, comprising the following steps, (1), grinding process, (2), melting method The calcining process obtains the alumina clinker, and (3), the cooling process obtains the alumina self-powdering clinker;

[0041] Wherein (1), grinding process: with 20 tons of fly ash, 60 tons of limestone, carry out batching and grind;

[0042] (2) Alumina clinker obtained from the calcining process of the melting method: the raw material that is ground from step (1) is transported to the rotary distributor by the feeding conveyor through the hoist, and then enters from the feeding port at the top of the calcining kiln. calcining kiln;

[0043] (a) The materials entering the raw meal decomposition zone at the upper part of the calcining kiln are dried and dehydrated in the raw meal decomposition zone, and the reaction temperat...

Embodiment 3

[0049] Embodiment 3: as shown in Figure 5, utilize the equipment of embodiment 1 to adopt the method for producing alumina self-powdering clinker prepared by melting method, comprising the following steps, (1), grinding process, (2), melting method The calcining process obtains the alumina clinker, and (3), the cooling process obtains the alumina self-powdering clinker;

[0050] Wherein (1), grinding process: with 40 tons of fly ash, 80 tons of limestone, carry out batching and grind;

[0051] (2) Alumina clinker obtained from the calcining process of the melting method: the raw material that is ground from step (1) is transported to the rotary distributor by the feeding conveyor through the hoist, and then enters from the feeding port at the top of the calcining kiln. calcining kiln;

[0052] (a) The materials entering the raw meal decomposition zone at the upper part of the calciner are dried and dehydrated in the raw meal decomposition zone, and the reaction temperature in...

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Abstract

The invention discloses equipment and preparing method of aluminum oxide clinker through fusing method, which comprises the following parts: high-temperature fan, hot-air pipe, calcining kiln, rotary cloth tool, elevator, cooler, deduster, chimney, waste-gas fan, discharger, feed transmitter, exhaust gas pipe, upper and lower wind chamber, inlet and clinker outlet. The preparing method comprises the following steps: (1) grinding; (2) fusing to obtain aluminum oxide clinker; (3) cooling to obtain the self-powdered clinker of aluminum oxide.

Description

Technical field: [0001] The present invention relates to an equipment for alumina self-powdering clinker and a method for preparing alumina self-powdering clinker using the equipment, in particular to a method for producing alumina self-powdering clinker by melting fly ash and limestone A device and a method for preparing alumina self-powdering clinker by using the device and using the melting method. Background technique: [0002] There are two methods for domestic alumina production, one is the Bayer method; the other is the sintering method. The main raw material for Bayer process production is high-grade bauxite, and the A / s of bauxite is generally required to be greater than 8. The main production equipment is pipeline equipment. The main raw material for sintering production is low-grade bauxite. Generally, the A / s of bauxite is required to be about 5, and the equipment is a wet rotary kiln. At present, the source of raw materials is the solid pollutants discharged ...

Claims

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Application Information

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IPC IPC(8): C01F7/02
Inventor 刘埃林佟福林李学勇杜鸿逵郝耀进马学忠
Owner 内蒙古蒙西鄂尔多斯铝业有限公司
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