Coagulation-enhanced type cyclone dedusting and demisting device

A defogging device and an enhanced technology, which are applied in the fields of combination devices, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of poor separation efficiency, rising investment and operating costs, and difficulty in meeting the emission requirements of the demister. The effect of reducing investment and operating costs, reducing the number of swirl components, and improving collectability

CN106621670AInactive Publication Date: 2017-05-10南京宇行环保科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-05-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a coagulation-enhanced type cyclone dedusting and demisting device, belonging to the field of waste gas treatment. The device comprises a cylindrical outer barrel and m cyclone assemblies; each cyclone assembly comprises a plurality of cyclone blades and a center cylinder, wherein the cyclone blades are evenly distributed in a ring-shaped area between the outer wall of the corresponding center cylinder and the inner wall of the cylindrical outer barrel at an inclined angle; n stages of coagulation devices are arranged in the cylindrical outer barrel at the parts among the at least one group of connected cyclone assemblies. The coagulation devices are additionally arranged among the cyclone assemblies, so that the probabilities of inertial impaction, intercept and coagulation between fine-particle dust and sprayed coagulated liquid drops are improved, the capture property of the dust is improved, the removal efficiency is increased under the condition of the same stage number of cyclone assemblies, or to say, the stage number, needed by reaching the equal efficiency, of the cyclone assemblies is reduced, and the investment and the running costs are lowered.
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Description

technical field

[0001] The invention belongs to the field of waste gas treatment, and in particular relates to a condensation-enhanced cyclone dust and mist removal device. Background technique

[0002] At present, the existing coal-fired units in my country generally adopt the limestone-gypsum wet flue gas desulfurization process. Limestone, gypsum slurry, etc. in the state of fog droplets. With the increasing national environmental protection emission standards, it is necessary to perform deep dust removal on the clean flue gas after desulfurization. According to the newly promulgated "Emission Standards of Air Pollutants for Thermal Power Plants", the dust concentration emitted by the chimney is proposed to be 5mg / m 3 requirements.

[0003] Dust and fog removal of flue gas is the most common process in the flue gas purification process. There are various types, but it is difficult to deal with the saturated wet flue gas containing a large number of mist droplets. In ord...

Examples

Embodiment 1

[0033] A condensing and enhanced cyclone dust and mist removal device, the device includes a cylindrical outer cylinder (13), m swirl assemblies (8), and the swirl assemblies (8) include several swirl blades (12) and a central cylinder (11), the swirl blades (12) are evenly distributed in the annular area between the outer wall of the central cylinder (11) and the inner wall of the cylindrical outer cylinder (13) at an inclined angle, the swirl The number of flow components m≥2;

[0034]An n-stage condensing device (4) is provided in the cylindrical outer cylinder (13) between at least one group of connected cyclone components (8), and the condensing device (4) includes a condensate pipeline (3) And the nozzle (7) which is arranged on the top of the condensate pipeline (3) to generate the droplet particle size of 2-80 μm and the quick joint (2) of the condensate device arranged at the bottom of the condensate pipeline (3), the condensate The device quick connector (2) is conn...