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A double-tower double-circulation desulfurization system and method that cancels the accident slurry system

A desulfurization system and double-cycle technology, applied in the field of desulfurization, can solve the problems of high one-time cost and high operation and maintenance cost, and achieve the effect of reducing maintenance workload, maintenance engineering workload and construction difficulty.

Active Publication Date: 2021-09-28
SHANDONG GUOSHUN CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The one-time cost is high, and the later operation and maintenance cost is also high

Method used

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  • A double-tower double-circulation desulfurization system and method that cancels the accident slurry system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, a double-tower double-cycle desulfurization system that cancels the accident slurry system includes a primary absorption tower and a secondary absorption tower. The primary absorption tower is connected to the gypsum discharge pump of the primary tower through the first pipeline, and the secondary absorption tower passes through The second pipeline is connected to the secondary gypsum discharge pump; the primary tower gypsum discharge pump and the secondary gypsum discharge pump are both connected to the desulfurization system through the third pipeline; the third pipeline is provided with a return pipeline, and the return pipeline is respectively connected to the primary absorption tower It is connected with the secondary absorption tower.

[0022] Further, the return pipeline is connected to the primary absorption tower through the gypsum slurry returning pipeline to the primary tower, and the return pipeline is connected to the secondary ab...

Embodiment 2

[0033] The present disclosure also provides a method for using a double-tower double-cycle desulfurization system that cancels the accident slurry system, including:

[0034]When the dual-tower dual-circulation system is in normal operation, the first-stage tower gypsum discharge pump is turned on to discharge the fully oxidized gypsum slurry to the gypsum dehydration system, and the second-stage tower gypsum discharge pump is turned on to discharge the second-stage tower gypsum slurry to the first-stage tower or Gypsum dehydration system;

[0035] When the primary absorption tower is in the maintenance state, the gypsum slurry in the primary absorption tower is discharged to the secondary absorption tower through the gypsum discharge pump of the primary absorption tower and the switching valve and pipeline at the outlet, and the primary absorption tower is restored after the failure is repaired. After operation, the gypsum slurry is sent back to the primary absorption tower t...

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Abstract

The disclosure provides a double-tower double-circulation desulfurization system and method that cancels the accident slurry system, including: a primary absorption tower and a secondary absorption tower, the primary absorption tower is connected to the gypsum discharge pump of the primary tower through the first pipeline, and the secondary absorption tower The first-stage absorption tower is connected to the second-stage gypsum discharge pump through the second pipeline; the first-stage tower gypsum discharge pump and the second-stage gypsum discharge pump are both connected to the desulfurization system through the third pipeline; The first-level absorption tower is connected to the second-level absorption tower; the design of the accident slurry system is canceled, which effectively avoids the extension of the construction period caused by the construction of a separate configuration of the accident slurry system, and reduces the increase in construction on site while ensuring the construction period and project quality , making the regional planning of wet desulfurization more standardized, and the fire maintenance road smoother; reducing the corrosion, scaling, and maintenance workload in the desulfurization system, reducing the maintenance workload of equipment, and reducing the energy consumption of the desulfurization system.

Description

technical field [0001] The disclosure belongs to the technical field of desulfurization, and in particular relates to a double-tower double-circulation desulfurization system and method that cancels the accident slurry system. Background technique [0002] The accident slurry discharge system is an important system to ensure the stable operation of the desulfurization facilities. Its main function is to discharge the slurry in the system to the accident slurry tank when the desulfurization system fails, so as to timely empty the gypsum slurry in the absorption tower to the drainage pit. In the conventional design of the desulfurization accident slurry discharge system, the capacity of the accident slurry tank must first be considered; secondly, the return operation of the accident slurry and the cleaning operation of the accident slurry tank after use must also be considered. [0003] Due to the large amount of slurry in the entire desulfurization system, the accident slurry...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18B01D53/14
CPCB01D53/1406B01D53/1456B01D53/18B01D2251/404B01D2257/30
Inventor 吴力菊卢圣涛孙德山仇洪波吴方超
Owner SHANDONG GUOSHUN CONSTR GRP
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