Sound wave agglomeration-based dust removal and ultralow emission device applicable to converter gas

A converter gas and sound wave technology, applied in the field of process dust removal in the metallurgical industry, can solve the problems of occupation, long process, large installation space, etc., and achieve the effect of not easy to block, simple structure, uniform atomization or spraying effect

Pending Publication Date: 2019-06-04
CISDI ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When acoustic agglomeration is applied in the field of dust removal, the agglomeration device is generally installed in the flue gas pipeline, or a special acoustic agglomeration chamber is set up, such as CN107029508A, CN103736356A and CN103706219A, the process is long and requires a large installation space

Method used

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  • Sound wave agglomeration-based dust removal and ultralow emission device applicable to converter gas
  • Sound wave agglomeration-based dust removal and ultralow emission device applicable to converter gas
  • Sound wave agglomeration-based dust removal and ultralow emission device applicable to converter gas

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specific Embodiment 1

[0027] see figure 1 , is a device based on acoustic agglomeration suitable for ultra-low emission of converter gas dedusting, used to replace the gas cooler of converter gas dry dedusting system, installed between the gas fan and the switching station, including a bracket, on which there is a cylinder Body 2, the cylinder body 2 is welded with the support 1 and fixed on the civil foundation by ground angle bolts, the cylinder body 2 is a vertical cylinder or square structure welded by steel plates, the bottom of the cylinder body 2 is provided with a lower cone 3, the lower cone The body 3 is connected with a drainage pipe 4, and the drainage pipe 4 is externally connected with a turbid ring water treatment system. The cylinder body 2 is provided with a gas inlet pipe 5 and several sets of sound wave agglomeration devices 7. The gas outlet of the gas inlet pipe 5 is located lower than the sound wave agglomeration device. 7. The gas inlet pipe 5 is inserted into the cylinder bo...

specific Embodiment 2

[0033] see figure 2, the present invention provides a device based on sonic agglomeration suitable for ultra-low emission in the converter gas dedusting system, which is used to replace the dehydrator of the converter gas wet dedusting system and installed in the steelmaking tower. This embodiment is different from the specific embodiment 1 The advantage is that the gas inlet pipe 5 is set to be connected to the cylinder body 2 along the tangential direction of the cylinder body 2, so that the flue gas enters the cylinder body 2 tangentially through the gas outlet of the gas inlet pipe 5, and the gas inlet pipe 5 does not need to be wetted with water mist Nozzle 6, the load of cylinder 2 is transferred from the support 1 to the corresponding platform of the steelmaking tower, and water mist dedusting nozzles 8 are arranged at different heights along the upper axis of cylinder 2 to ensure that the water mist covers the entire cylinder 2 section, lower the flue gas temperature ...

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Abstract

The invention relates to a sound wave agglomeration-based dust removal and ultralow emission device applicable to converter gas, and belongs to the technical field of process dust removal in the metallurgical industry, the sound wave agglomeration-based dust removal and ultralow emission device applicable to the converter gas comprises a support; a cylinder body is arranged on the support; a coalgas inlet pipe and a plurality of groups of sound wave agglomeration devices are arranged on the cylinder body, a water mist dust removal nozzle, a dewatering demister and a flushing nozzle are sequentially arranged in the cylinder body above the sound wave agglomeration devices, a gas outlet pipe is arranged at the top of the cylinder body, a gas inlet pipe is used for guiding flue gas into the inner part of the cylinder body, the flue gas enters the cylinder body, passes through the steps of sound wave agglomeration, water mist dust removal and dehydration and demisting from bottom to top, and then enters a dust removal system pipeline, the sound wave agglomeration-based dust removal and ultralow emission device can be used for replacing a coal gas cooler of a converter gas dry-process dust removal system, and can also be used for replacing a dehydrator of a converter gas wet-process dust removal system, the structure is simple, no extra mounting space is needed, the dust concentration of the converter gas can be reduced to be less than or equal to 10 mg / Nm3 from 10-100 mg / Nm3, and ultralow emission of the dust removal system of the converter coal gas can be realized.

Description

technical field [0001] The invention belongs to the technical field of process dust removal in the metallurgical industry, and relates to an ultra-low emission device suitable for converter gas dust removal based on acoustic wave agglomeration. Background technique [0002] The current dust emission concentration range of the converter gas dust removal system is 15-50mg / Nm3, and the specific value has a certain relationship with the system working conditions and the operation status of the main dust removal equipment. In order to meet the more stringent ultra-low emission requirements in the future and ensure that the dust emission concentration is ≤10mg / Nm3, continuous improvement of the dust removal system process is of great significance to the development of the entire iron and steel industry. [0003] In view of the fact that the large particles in the dust-laden flue gas are easy to remove, but the micron-sized small particles are difficult to remove, it is possible to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D49/00B01D50/00
Inventor 方向蓝飞
Owner CISDI ENG CO LTD
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