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Foam breaker

A defoamer and cylinder technology, applied in chemical instruments and methods, separation methods, use of liquid separation agents, etc., can solve the problems of flue gas containing moisture or high foam, tailing, white smoke, etc., to eliminate Fog, reduce white smoke from chimneys, eliminate air bubbles

Active Publication Date: 2013-06-26
SINOPEC ENG GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the process of wet dedusting and desulfurization is still a reliable mainstream process. However, the commonly used wet dedusting methods such as lime method, limestone method, sodium alkali method, double alkali method, ammonia method, organic amine method, and magnesium oxide method The flue gas discharged after desulfurization treatment contains moisture or high foam content, and white smoke and tailing phenomenon are serious

Method used

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Embodiment Construction

[0024] The following specific descriptions of the present invention are given by the examples, which are only used to further illustrate the present invention, and should not be construed as limiting the protection scope of the present invention.

[0025] Such as Figure 1-2 The specific embodiment of the present invention shown includes a defoamer cylinder body 1, and a Venturi tube bundle composed of a plurality of Venturi tubes 2 arranged side by side is fixedly arranged in the defoamer cylinder body 1, each The Venturi tube 2 includes a constriction section 24 that gradually decreases in the inner diameter, a throat pipe 21, and a diffuser section 22 that is connected to the upper end of the throat pipe 21 and gradually expands in the inner diameter direction. The inner wall of the defoamer cylinder 1 is opposite to the diffuser section The upper end of the spray pipe 3 is fixedly provided with a spray pipe 3, and the number and position of the spray pipe 3 are con...

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PUM

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Abstract

The invention discloses a foam breaker which comprises a foam breaker barrel, wherein a Venturi tube bundle consisting of multiple Venturi tubes which are arranged in parallel is fixedly arranged in the foam breaker barrel; each Venturi tube comprises a throat tube and a flaring diffusion section which is communicated with the upper end of the throat tube and of which the inner diameter is gradually enlarged in the radial direction; a spraying pipe is fixedly arranged on the inner wall of the foam breaker barrel relative to the end of the flaring diffusion section; the lower edge of an umbrella-shaped water curtain sprayed from each umbrella-shaped spraying head is positioned outside the flaring diffusion section; a liquid collecting hopper is arranged between the upper and lower ends of the Venturi tubes positioned in the foam breaker barrel; the inner cavity of the foam breaker barrel is divided into an upper cavity and a lower cavity through the liquid collecting hopper; the lower end of the liquid collecting hopper is provided with a drainage pipe; and an outlet of the drainage pipe is arranged outside the foam breaker barrel. The foam breaker has the advantages that air bubbles formed after wet-process flue gas dust removal desulfuration can be eliminated, and the entrainment generated by the broken air bubbles is eliminated, so that the phenomenon that white smoke or trailing occurs in the chimney is reduced.

Description

technical field [0001] The invention belongs to flue gas defoaming technology, and specifically refers to a defoamer suitable for institutions such as tower flue or chimney after wet flue gas dust removal or desulfurization. Background technique [0002] In recent years, environmental protection requirements at home and abroad have become higher and higher, and all kinds of furnace flue gas and petrochemical tail gas must be discharged after dust removal and desulfurization. At present, the process of wet dedusting and desulfurization is still a reliable mainstream process. However, the commonly used wet dedusting methods such as lime method, limestone method, sodium alkali method, double alkali method, ammonia method, organic amine method, and magnesium oxide method The flue gas discharged after desulfurization treatment contains moisture or high foam content, and white smoke and trailing phenomenon are serious. Contents of the invention [0003] The purpose of the prese...

Claims

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Application Information

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IPC IPC(8): B01D53/00B01D47/06
Inventor 林德生王华健王宏伟吴军萍郑秀中
Owner SINOPEC ENG GRP CO LTD
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