Slurry feed system of desulfurized limestone

A limestone slurry and limestone technology, applied in the field of desulfurization, can solve problems such as excessive emission of sulfur dioxide concentration in the flue gas at the outlet of the absorption tower, unit shutdown, and affecting the normal operation of the absorption tower.

Inactive Publication Date: 2016-02-24
SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP
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Problems solved by technology

[0002] In the current limestone-gypsum flue gas desulfurization device, the limestone pulping system is usually equipped with a limestone slurry tank corresponding to a desulfurization absorption tower slurry supply system scheme, such a scheme, due to the high solid content of limestone slurry, about 25% , in order to prevent slurry deposition, the agitator in the slurry tank needs to be operated for a lon

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  • Slurry feed system of desulfurized limestone

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[0017] The present invention will be further described below in conjunction with specific embodiments and drawings.

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0019] Such as figure 1 This is an embodiment of a desulphurized limestone slurry supply system of the present invention, such as figure 1 As shown, a desulfurized limestone slurry supply system includes: a plurality of limestone slurry tanks, the limestone slurry tanks are connected in series by connecting pipes, and a plurality of slurry pumping pipes are connected to the series pipes. The desulfurization tower is connected, and each limestone slurry tank is equipped with a st...

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Abstract

The invention discloses a slurry feed system of desulfurized limestone, comprising a plurality of limestone slurry boxes, wherein the limestone slurry boxes are connected in series though a communicating pipeline, the communicating pipeline is connected with a plurality of slurry pumping pipelines, the slurry pumping pipelines are connected with desulfurizing towers by slurry pumps, and each limestone slurry box is internally provided with a stirrer. By using the arrangement of the plurality of limestone slurry boxes and a mode of operation of the plurality of desulfurizing towers, non-stop can be guaranteed when overhauling, and the plurality of limestone slurry boxes are connected in series, so that when a part of the limestone slurry boxes is overhauled, the overhauled part can use the adjacent limestone slurry boxes to operate.

Description

Technical field [0001] The invention relates to the field of desulfurization, in particular to a desulfurized limestone slurry supply system. Background technique [0002] In the current limestone-gypsum flue gas desulfurization device, the limestone pulping system usually has a limestone slurry tank corresponding to a desulfurization absorption tower slurry supply system plan. Such a plan, due to the high solid content of the limestone slurry, about 25% , In order to prevent slurry deposition, the slurry tank agitator needs to operate for a long time, and it is inevitable that the agitator malfunctions. If the agitator and other equipment malfunction, the corresponding absorption tower slurry supply system will be out of service, affecting the normal operation of the absorption tower, causing The sulfur dioxide concentration in the flue gas at the outlet of the absorption tower exceeded the standard, and even caused the unit to shut down. Summary of the invention [0003] The pu...

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Application Information

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IPC IPC(8): B01D53/80B01D53/50
Inventor 阮定龙秦学付焕兴吴东梅罗杨
Owner SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP
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