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Low pressure air system for alumina production

An alumina and air system technology, applied in alumina/aluminum hydroxide and other directions, can solve the problems of abnormal vibration, insufficient flow, and high temperature, and achieve the effects of low energy loss, reduced power consumption and production cost, and reliable operation.

Inactive Publication Date: 2017-06-20
CHINA ALUMINUM INT ENG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after a period of use, the Roots wind is prone to problems such as excessive temperature, insufficient flow, oil leakage, abnormal vibration or noise, which will adversely affect production.

Method used

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  • Low pressure air system for alumina production
  • Low pressure air system for alumina production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 As shown, in the low-pressure wind system for alumina production in the present invention, there are three air suspension centrifugal blowers 1, and the three air suspension centrifugal blowers 1 are connected in parallel. It is directly connected to the gas terminal 3 through a pipeline.

[0020] When the gas end 3 is a vertical disc filter, the air suspension centrifugal blower 1 is stabilized by the compressed air storage tank 2 and then connected to the gas end 3 .

[0021] The outlet of the air suspension centrifugal blower 1 is provided with a fan outlet valve 4 and a flow meter 5 in sequence.

[0022] The inlet end of the compressed air storage tank 2 is provided with a compressed air storage tank inlet valve 6, the outlet end of the compressed air storage tank 2 is provided with a compressed air storage tank outlet valve 7, and the top of the compressed air storage tank 2 is provided with a compressed air storage tank The bottom of the compres...

Embodiment 2

[0024] Such as figure 2 As shown, the low-pressure wind system for alumina production in the present invention includes one air-suspension centrifugal blower 1, which adopts a high-speed direct-connected motor, and the air outlet of the air-suspension centrifugal blower 1 is directly connected to the air terminal 3 through a pipeline.

[0025] The gas terminal 3 is used for the fluidized cooler of the roasting section and the electric dust collection of the roasting section.

[0026] The outlet of the air suspension centrifugal blower 1 is provided with a fan outlet valve 4 and a flow meter 5 in sequence.

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Abstract

The invention relates to a low pressure air system, in particular to a low pressure air system for alumina production in the technical field of alumina production. The low pressure air system for alumina production adopts air suspension centrifugal blowers, and air outlets of the air suspension centrifugal blowers are directly connected to a gas consumption end through a pipeline. Compared with the prior art, the low pressure air system provided by the invention employs air suspension centrifugal blowers to replace original Roots blowers, improves the motor efficiency and the equipment running efficiency, lowers the power consumption and production cost, decreases cost and increases benefit.

Description

technical field [0001] The invention relates to a low-pressure air system, in particular to a low-pressure air system for alumina production in the technical field of alumina production. Background technique [0002] China is the world's largest producer of alumina, with an annual output of 58.98 million tons of alumina in 2015. In the alumina production process, low-pressure wind less than 0.2Mpa is an essential power source. It is mainly used for reverse blowing of filter cake of vertical plate filter in seed filtration section, fluidization air of fluidized cooler in roasting section and back blowing of dust material in electric dust collection in roasting section. Under the current situation that the cost of alumina industry is rising and profits are decreasing, reducing the power consumption of fans is of great significance to energy saving and consumption reduction in alumina production. [0003] At present, the low-pressure fans used by alumina enterprises are mainl...

Claims

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Application Information

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IPC IPC(8): C01F7/02
CPCC01F7/02
Inventor 王会兴
Owner CHINA ALUMINUM INT ENG CORP
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