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Split self-excited serial electric-cyclone gas-solid separating device of circulating fluidized bed boiler

A technology of circulating fluidized bed and cyclone separator, which is applied in the direction of swirling device, fluidized bed combustion equipment, fuel burning in molten state, etc., to achieve improved stability and safety level, simplified mechanism, and increased discharge voltage level Effect

Inactive Publication Date: 2012-06-13
SOUTHEAST UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

Furthermore, its manufacturing process is complicated, and its manufacturing and maintenance costs are relatively high.

Method used

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  • Split self-excited serial electric-cyclone gas-solid separating device of circulating fluidized bed boiler
  • Split self-excited serial electric-cyclone gas-solid separating device of circulating fluidized bed boiler

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Embodiment Construction

[0026] Combine below figure 1 To further explain the present invention:

[0027] Such as figure 1 As shown, the split self-excited serial power-cyclone separation device of the circulating fluidized bed boiler of the present invention includes a high-temperature cyclone separator 1, a power gas-solid separator 2, a DC power supply 3, an emitter plate 4, a dust collecting plate 5. The ash drop channel 6 and the flue gas discharge tube 7 are composed of. The upper part of the cyclone separator 1 is provided with a flue gas discharge tube, and the lower end of the cyclone separator is a fly ash return pipe 6. The electric gas-solid separator includes a shell, an emitter plate 4 and a dust collecting plate 5. There are a flue gas inlet, a flue gas outlet and an ash outlet. The emitter plate is arranged inside the flue gas inlet, and the dust collecting plate is arranged at the upper end of the ash outlet; the flue gas inlet is connected to the flue gas discharge tube 7 , The dus...

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Abstract

The invention discloses a split self-excited serial electric-cyclone separating device of a circulating fluidized bed boiler. The device comprises a cyclone separator and an electric gas-solid separator. The upper part of the cyclone separator is provided with a flue gas discharge cylinder, and the lower end of the cyclone separator is provided with a fly ash recycle pipe. The electric gas-solid separator consists of a housing, an emitter plate and a dust collecting plate. The housing is equipped with a flue gas inlet, a flue gas outlet and a falling ash outlet. The emitter plate is disposed inside the flue gas inlet, and the dust collecting plate is positioned over the falling ash outlet. The flue gas inlet is connected to the flue gas discharge cylinder. Compared with prior art, a lot of curved surface structure forms in the static separating part of the separating device in the invention are changed into planar structure forms, which is conducive to improvement of the discharge voltage level in an electrostatic field, thus enhancing the operation stability and safety level of the separating device.

Description

technical field : [0001] The invention relates to a gas-solid separation device, in particular to a split-type separation device for flue gas gas-solid separation used in circulating fluidized bed boilers at high temperatures above 800°C or similar applications. Background technique : [0002] In the occasion of separating high-temperature materials above 800 ° C in circulating fluidized bed boilers, separators using integrated electric power and cyclone combination have been seen. It mainly relies on the electron thermal emission mechanism of the material to charge the dust, and then is driven to the dust collector by the low-voltage electric field to collect the new corona-free electric dust removal technology, which is different from the traditional cyclone separator that relies on the rotating centrifugal force to achieve gas-solid separation. The technology is connected in series to form a combined technology; and it can be applied to occasions where the working envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C10/18B04C9/00
Inventor 杨亚平
Owner SOUTHEAST UNIV
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