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Gas inlet regulating method of double-cyclone dust collector and device thereof

A technology of an adjusting device and an adjusting method, which is applied to a device in which the axial direction of the cyclone can be reversed, a cyclone device, etc., can solve the problems of unstable dust separation effect of the double cyclone dust collector, and difficulty in ensuring the double cyclone dust collector, etc. To achieve the effect of easy automation control, prevention of damage, and reduction of dust processing load

Inactive Publication Date: 2010-12-08
北京钢研新冶工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cross-section of the air inlet of the double-cyclone dust collector is constant, so it is difficult to ensure that the air inlet of the double-cyclone dust collector enters the air at the best air velocity, resulting in unstable dust separation effect of the double-cyclone dust collector

Method used

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  • Gas inlet regulating method of double-cyclone dust collector and device thereof
  • Gas inlet regulating method of double-cyclone dust collector and device thereof
  • Gas inlet regulating method of double-cyclone dust collector and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] After the spray roasting acid regeneration unit is turned on, the temperature of the roaster is raised. The gas flow rate monitoring unit will feed back the measured flue gas flow rate in the pipeline to the control system in real time. 15-20m / s), give action instructions to the valve plate driving cylinder, and the driving cylinder drives the rotating shaft of the valve plate through the connection between the guide rod and the slider to change the opening of the valve plate. When the flue gas flow rate is adjusted to the flow rate range set by the process, the cylinder will stop moving. It has been verified that during the heating process of the roasting furnace of the spray roasting acid regeneration unit, the dust emission concentration of the chimney of the washing tower can be reduced by more than 50% compared with that without adjustment.

Embodiment 2

[0054] The roasting capacity of the spray roasting acid regeneration unit is changed from 1.0m 3 / h gradually adjusted to 2.5m 3 In the process of / h, the gas flow rate monitoring unit will feed back the measured flue gas flow rate to the control system in real time, and the control system will control the parameters according to the preset process (ie: the flue gas flow rate range is controlled within 18-23m / s) , give the action command to the valve plate driving cylinder, and the driving cylinder drives the rotating shaft of the valve plate through the connection between the guide rod and the slider to change the opening of the valve plate. When the flue gas flow rate is adjusted to the flow rate range set by the process, the cylinder will stop moving. It has been verified that the roasting capacity of the spray roasting acid regeneration unit has increased from 1.0m 3 / h adjusted to 2.5m 3 / h process, after the method is used for adjustment, the dust emission concentrati...

Embodiment 3

[0056] During the shutdown operation of the spray roasting acid regeneration unit, the gas flow rate monitoring unit will feed back the measured flue gas flow rate in the pipeline to the control system in real time. / s), the action command is given to the valve plate drive cylinder, and the drive cylinder drives the rotation shaft of the valve plate through the connection between the guide rod and the slider to change the opening of the valve plate. When the flue gas flow rate is adjusted to the flow rate range set by the process, the cylinder will stop moving. It has been verified that during the shutdown operation of the spray roasting acid regeneration unit, after the method is used for adjustment, the dust emission concentration of the scrubber chimney can be reduced by more than 50% compared with that without adjustment.

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Abstract

The invention relates to a gas inlet regulating device of a double-cyclone dust collector. Two gas inlets of the double-cyclone dust collector are connected with a flue gas pipeline in parallel. The gas inlet regulating device is arranged at the gas inlet of the double-cyclone dust collector (8) and comprises a first valve plate (1-a), a second valve plate (1-b), a first valve plate rotating shaft (2-a), a second valve plate rotating shaft (2-b), a valve plate opening drive device (3), a gas flow rate monitoring unit (4) and a control system (7), wherein the first valve plate (1-a) and the second valve plate (1-b) are symmetrically positioned on the pipelines of the two gas inlets of the double-cyclone dust collector (8) respectively, the valve plate opening drive device (3) is used for respectively regulating the opening angles of the first valve plate (1-a) and the second valve plate (1-b) by the first valve plate rotating shaft (2-a) and the second valve plate rotating shaft (2-b), the air inlet pipeline is provided with the gas flow rate monitoring unit (4), and the valve plate opening drive device (3) and the gas flow rate monitoring unit (4) are respectively connected with the control system (7).

Description

technical field [0001] The invention relates to a method and a device for adjusting an air inlet of a double cyclone dust collector, which are mainly used in spray roasting method acid regeneration units, and are also applicable to other cyclone dust removal equipment used for processing dust-containing flue gas. Background technique [0002] Acid regeneration by spray roasting method is a resource recovery technology for waste acid produced in the strip pickling process, and it is widely used at present. The double cyclone dust collector is an important equipment of the acid regeneration unit of the spray roasting method, which is mainly used to separate the iron oxide powder particles in the roasting flue gas. The equipment's separation efficiency of iron oxide powder will directly affect the dust treatment effect of downstream process equipment and the dust concentration in the exhaust gas from the chimney of the scrubber. [0003] Among the many factors affecting the du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B04C5/02
CPCB04C5/04B04C5/28
Inventor 张振林王海林苏泽杨绿郭振英
Owner 北京钢研新冶工程设计有限公司
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