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Heat exchange device for dust-contained smoke

A heat exchange device, flue gas technology, used in waste heat treatment, lighting and heating equipment, process efficiency improvement and other directions

Inactive Publication Date: 2016-04-13
NINGBO HEXIE ENERGY CONSERVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a heat exchange device for heat exchange devices containing dust and flue gas, which is easy to cause problems such as blockage, corrosion, rapid wear of heat exchan

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  • Heat exchange device for dust-contained smoke

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Embodiment Construction

[0007] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment: see figure 1 , for the heat exchange device containing dust and flue gas, it includes the inlet pipeline 1, the superheater 2, the evaporator 3, the economizer 4 and the feed water preheater 5 connected in sequence, and then connected with the outlet pipeline 6, the inlet pipeline 1 and the superheater 2 is provided with a filter screen 7, and the front end of the filter screen 7 is provided with an ash discharge pipeline 8, and the ash discharge pipeline 8 is connected with an ash storage box 9. During the operation of this heat exchange device, dust will be blocked on the filter screen, and then the dust will be stored in the ash storage box through the ash discharge pipe.

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Abstract

The invention discloses a heat exchange device for dust-contained smoke. The heat exchange device for dust-contained smoke comprises an inlet pipe, a superheater, an evaporator, a coal economizer and a water feeding preheater connected in sequence; then, an outlet pipe is connected; a filter screen is arranged between the inlet pipe and the superheater; and a dust unloading pipe is arranged at the front end of the filter screen, and is connected with a dust storage box. The heat exchange device can stop dust on the filter screen in the operation process, and stores the dust in the dust storage box through the dust unloading pipe.

Description

technical field [0001] The invention belongs to the technical field of heat exchangers, in particular to a heat exchange device for flue gas containing dust. Background technique [0002] In some large-scale smelting, calcination, incineration, smelting, lime and other production and processing equipment, more than 70% of the industrial kiln flue gas usually contains a large amount of dust. Large, it is easy to cause blockage of heat exchange equipment, rapid wear, serious dust on the heat exchange area and other problems, thereby reducing heat exchange efficiency. For example, the flue gas at the tail of the lime calciner and the tail gas of the titanium dioxide calciner, although the waste heat temperature of the flue gas of the calciner is very high, often reaching above 350°C, which has a good value for waste heat utilization, but most of the high-dust gases exist in flue gas The composition is complex and the dust content is high, which is likely to cause corrosion, we...

Claims

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Application Information

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IPC IPC(8): F27D17/00
CPCF27D17/004F27D17/008Y02P10/25
Inventor 沈锋郭莎莎
Owner NINGBO HEXIE ENERGY CONSERVATION