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Cyclone with a plurality of inlet ducts

A technology for inlet pipes and swirlers, which can be used in swirl devices, devices where the axial direction of the swirl can be reversed, dust collectors, etc., and can solve problems such as blockage and blade damage

Inactive Publication Date: 2014-01-08
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large number of blades with narrow gaps between them can be damaged and become clogged under severe operating conditions so that these blades do not operate as efficiently as they should

Method used

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  • Cyclone with a plurality of inlet ducts
  • Cyclone with a plurality of inlet ducts
  • Cyclone with a plurality of inlet ducts

Examples

Experimental program
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Embodiment Construction

[0028] figure 1 A conventional blast furnace exhaust system with standard side inlet swirlers is shown. The cyclone 1 has a substantially cylindrical body and also comprises an inlet duct 2 with a region 3 , which enters the body 4 tangentially by means of a bend 5 . Gas from the top 6 of the blast furnace enters the exhaust system 7 , passes through the downcomer 8 , optionally passes through the isolation valve 9 a , enters the cyclone 1 and exits the cyclone through the outlet 10 . With a single inlet, it may be difficult to properly transfer all loads from the discharge pipe and downcomer fitted with isolation valves and expansion joints to the cyclone. Another problem with the side inlet to the cyclone is that this limits how close the cyclone can be to the furnace. This therefore causes problems associated with retrofitting cyclones with side inlets to existing installations. Furthermore, the swirler itself would be loaded unevenly with the side inlets, so an axial ar...

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PUM

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Abstract

A cyclone has a cyclone body formed with a plurality of inlet ducts and an outlet. A first end of each of the inlet ducts is coupled to a downcomer and a second end of each of the inlet ducts is coupled to the cyclone body. The downcomer proximate the cyclone body is co-axial with and mounted to the cyclone body on a support. Each inlet duct exits the downcomer radially and enters the cyclone body tangentially.

Description

technical field [0001] The invention relates to a cyclone, in particular to a cyclone for use in the gas cleaning stage of an ironmaking unit. Background technique [0002] With standard single inlet cyclones, the plant layout is limited by the need for dusty gas inlets to enter the cyclone vessel tangentially. This arrangement also limits the options for installing furnace isolation valves. It is desirable to install the isolation valve in a vertical position, which adds complex loads from the downcomer to the tangential support of the cyclone, which can be considerable, most especially if the cyclone Previously incorporated with an isolation valve. [0003] EP2125239 describes a single tangential inlet cyclone with a classifier inlet and a small particle bypass which allows adjustment of the efficiency of the cyclone during shutdown or during operation, To optimize the capture of recyclable materials as contaminants are delivered to the wet scrubbing system. However, a...

Claims

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Application Information

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IPC IPC(8): B04C5/04
CPCF27D17/008B04C5/04C21B7/22C21B7/002
Inventor 伊恩·默文·克雷格
Owner SIEMENS AG