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Culvert raw material delivery and smoke dust recovery device

A technology of raw material conveying and recycling device, applied in the field of metallurgy, can solve the problems of easy blockage of heat exchange pipes, strong viscosity, reducing the utilization effect of flue gas waste heat boiler, etc., to reduce dust content, improve utilization rate, good dust reduction and environmental protection characteristics economic effect

Active Publication Date: 2012-12-05
CISDI ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3. The electric furnace dust has a strong viscosity, which is easy to block the heat exchange pipe and reduce the utilization effect of the follow-up flue gas waste heat boiler

Method used

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  • Culvert raw material delivery and smoke dust recovery device
  • Culvert raw material delivery and smoke dust recovery device
  • Culvert raw material delivery and smoke dust recovery device

Examples

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Embodiment Construction

[0027] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0028] figure 1 It is a schematic diagram of the structure of the present invention, as shown in the figure, the ducted smelting container raw material conveying and dust recovery device of the present invention includes a raw material conveying trough 1 inclined or parallel to the horizontal plane, and the discharge end of the raw material conveying trough 1 Extending into the smelting container 2, the upper part of the raw material delivery tank 1 is provided with a sealing cover 3, which forms a channel for raw material delivery and flue gas circulation between the sealing cover 3 and the raw material delivery tank 1, and the upper part of the sealing cover 3 is communicated with Three (according to the actual application, it can be one or more) dust fall chambers 4 for settling dust in the flue gas. The dust fall chambers 4 are conne...

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Abstract

The invention discloses a culvert raw material delivery and smoke dust recovery device and method for a smelting container. The device comprises a raw material delivery trough, wherein, the upper part of the raw material delivery trough is equipped with a sealing cover; a raw material delivery and flue gas circulation channel is formed between the sealing cover and the raw material delivery trough; and at least one settling chamber for settling dust in flue gas is communicated above the sealing cover. In the invention, the flue gas enters the settling chamber through a channel composed of theraw material delivery trough and the sealing cover, the flow velocity of the flue gas is reduced in the settling chamber and rotational flow or refraction is formed; and part of the dust in the flue gas falls on the surfaces of raw materials to be taken back to the melting container, thus improving the utilization ratio of the raw materials and the utilization effect of a subsequent flue gas waste heat boiler, lowering load of a subsequent dedusting system and reducing equipment maintenance. The invention is applicable to an electric furnace for smelting steel scrap and is also suitable for other smelting containers with smelting characteristics.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a device and method for conveying raw materials in a smelting vessel and recovering smoke and dust. Background technique [0002] Electric furnace steelmaking is an important steelmaking method that melts scrap metal by an electric arc, which consumes a lot of electrical energy during the smelting process. The continuous feeding and preheating technology of electric furnace scrap steel is an important sub-item technology of electric furnace steelmaking. It can save a lot of electric energy, stabilize the electric arc smelting of electric furnace and reduce the noise of electric furnace operation. It is a new technology of energy saving and environmental protection. At present, the international CONSTEEL technology based on continuous vibration feeding is a horizontal continuous feeding technology. CISDI has also developed and researched the highly efficient chute c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B3/18F27B3/10F27B3/08C21C5/52
CPCY02P10/20
Inventor 黄其明徐杰刘向东高瞻
Owner CISDI ENG CO LTD
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