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Annular side suction hood for crucible dust removal and dust collection method thereof

A ring-shaped cover and ring-shaped technology is applied in the field of crucible dust removal, which can solve the problems of poor dust suction effect, and achieve the effects of efficient dust collection, reliability and uniformity.

Active Publication Date: 2021-05-25
BEIJING HANGXING MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide an annular side suction hood for dust removal of the crucible and its dust suction method, in order to solve the problem that the design of the existing crucible furnace dust suction hood mostly adopts a rotary top suction hood or a one-way moving type. The method of top suction hood, while melting, refining, and degassing all need to carry out process operations above the furnace mouth, rotating or moving the top suction hood will inevitably interfere with these operations, and the problem of poor dust collection effect

Method used

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  • Annular side suction hood for crucible dust removal and dust collection method thereof
  • Annular side suction hood for crucible dust removal and dust collection method thereof
  • Annular side suction hood for crucible dust removal and dust collection method thereof

Examples

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Effect test

Embodiment 1

[0043] A specific embodiment of the present invention discloses an annular side suction hood for dust removal from a crucible and a dust suction method thereof, which can be used to efficiently collect dust and waste gas generated during the melting, refining and degassing of aluminum alloys using a crucible resistance furnace.

[0044] Specifically, such as figure 1 , figure 2 As shown, the annular side suction hood for dedusting the crucible includes: a suction tube 1 and an annular cover 2 , the suction tube 1 is arranged above the annular cover 2 , and the suction tube 1 communicates with the annular cover 2 . The suction cylinder 1 is connected with the dust remover, and the dust remover provides the suction pressure for suction and dust removal.

[0045] Further, the air suction cylinder 1 is cylindrical, and the air suction cylinder 1 is perpendicular to the annular cover 2 .

[0046] Further, the annular cover 2 is a circular cover structure with an inner cavity.

...

Embodiment 2

[0073] A specific embodiment of the present invention provides an annular side suction hood with a middle partition (not shown in the figure), the difference from Embodiment 1 is that the middle partition 8 is used for the partition.

[0074] Such as Figure 4 As shown, the shape of the middle partition 8 is the same as that of the upper cover 7 , the middle partition 8 is arranged inside the annular cover 2 , and the middle partition 8 is arranged parallel to the upper cover 7 .

[0075] The middle partition 8 divides the inner cavity of the annular cover 2 into two cavities. Specifically, the middle partition 8 divides the inner cavity of the annular cover 2 into an upper dust suction chamber and a lower dust suction chamber.

[0076] Further, a plurality of second communication holes 10 are provided on the middle partition 8, and the second communication holes 10 are used for connecting the upper dust suction chamber and the lower dust suction chamber.

[0077] Preferably...

Embodiment 3

[0083] This embodiment provides a design method for the annular side suction hood of Embodiment 1 or Embodiment 2, specifically, including the following steps:

[0084] Step (1) Determine the suction wind speed of the annular side suction hood and the external dimensions of the annular side suction hood according to the size of the crucible furnace in combination with the concentration of dust or exhaust gas emissions in the production process;

[0085] Step (2) According to the suction wind speed of the annular side suction hood and the external dimensions of the annular side suction hood, design the size of the opening (dust suction hole 4) of the annular cover 2, the number of openings (dust suction hole 4) and the hole (suction hole 4). Dust hole 4) position distribution;

[0086] Step (3) according to the above parameters, for the air volume and the wind speed of each position of the uniform annular cover 2, the position and the length of the deflector in the design annul...

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Abstract

The invention relates to an annular side suction hood for crucible dust removal and a dust collection method thereof, belongs to the technical field of crucible dust removal, and solves the problem that flue gas generated during smelting of a crucible furnace in the prior art is difficult to recover. The annular side suction hood comprises an air suction barrel and an annular cover; the air suction barrel is connected with a dust remover and used for providing dust suction power; the annular cover is arranged above the crucible furnace; the annular cover is communicated with the air suction barrel; and a plurality of dust collection holes are formed in the inner side wall face of the annular cover, and smoke enters an inner cavity of the annular cover from the dust collection holes and is exhausted through the air suction barrel. The annular side suction hood for crucible dust removal can be used for efficiently collecting dust and waste gas generated in the aluminum alloy melting, refining and degassing process of a crucible resistance furnace.

Description

technical field [0001] The invention relates to the technical field of crucible dust removal, in particular to an annular side suction hood for crucible dust removal and a dust suction method thereof. Background technique [0002] In the field of aerospace and other high-end equipment manufacturing, crucible resistance furnaces ranging from hundreds of kilograms to several tons are used for melting, refining and degassing of alloy liquid for multi-variety, small-batch lightweight and complex structural parts. A certain amount of dust and exhaust gas, in order to meet the corresponding environmental protection standards, need to be efficiently collected by a vacuum hood, and then discharged into the atmosphere after being treated by a dust filter. [0003] For the crucible furnace, the design of the existing vacuum hood mostly adopts the rotary top suction hood or the one-way movable top suction hood. [0004] Since the alloy needs to be processed above the furnace mouth dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00
CPCF27D17/001
Inventor 杜辰伟李强刘海鹏王目孔孙建新姚为任能
Owner BEIJING HANGXING MACHINERY MFG CO LTD
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