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Method and apparatus for adjusting the concentration of acids or lyes

A technology for adjusting acid and lye, applied in the direction of mixing methods, chemical instruments and methods, transportation and packaging, etc., can solve the problems of flow cross-section reduction, pressure loss, and outlet conduit can not achieve concentration, etc., to achieve pressure loss reduction , increase the flow resistance, the effect of uniform concentration distribution

Active Publication Date: 2015-03-04
METSO OUTOTEC (FINLAND) OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flow cross-section is thus reduced, which leads to a pressure loss
Despite a considerable amount of equipment, a uniform concentration cannot be achieved at the inlet of the outlet duct

Method used

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  • Method and apparatus for adjusting the concentration of acids or lyes
  • Method and apparatus for adjusting the concentration of acids or lyes
  • Method and apparatus for adjusting the concentration of acids or lyes

Examples

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Embodiment Construction

[0023] exist figure 1 An apparatus for concentration regulation of sulfuric acid as known in the prior art is shown in . The device comprises a supply conduit 1 for concentrated sulfuric acid, which is connected to an inlet 2 of a mixing chamber 3 . The mixing chamber 3 is arranged substantially at right angles to the supply duct 1 and has an outlet 4 at the end opposite the supply duct 1 , which is connected to a discharge duct 5 . The discharge duct 5 is also arranged substantially at right angles to the mixing chamber 3 and in substantially the same plane as the supply duct 1 .

[0024] In the end of the mixing chamber 3 adjacent to the inlet 2, a lance 6 with nozzle openings (so-called "black pipes") is arranged through which water can be injected into the sulfuric acid stream. Furthermore, a static mixer, which is not shown in the figure, can also be included in the mixing chamber 3 .

[0025] figure 2 shows a facility for concentration regulation according to the in...

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Abstract

A method for adjusting a concentration of an acid or lye includes charging a medium for adjusting the concentration of the acid or lye into a supply conduit of the acid or lye so as to provide a combined stream. The combined stream is supplied through an inlet to a mixing chamber such that the combined stream is deflected upon entering the mixing chamber. The combined stream is mixed in the mixing chamber. The combined stream is discharged through an outlet of the mixing chamber such that the combined stream is again deflected upon being discharged from the mixing chamber.

Description

technical field [0001] The invention relates to the regulation of the concentration of an acid or lye, in particular sulfuric acid, wherein said acid or lye is supplied to a mixing chamber through an inlet and mixed therein with a medium for adjusting the concentration, and wherein the adjusted concentration Acid or lye is discharged from the mixing chamber through an outlet. Background technique [0002] The concentration adjustment is described below with reference to sulfuric acid. However, the present invention is not limited thereto, and can be generally applied to adjusting the concentration of acid or lye. [0003] Sulfuric acid, a very important starting material for the chemical industry, is usually produced by the so-called double absorption process, which is described, for example, in Ullmann's Encyclopedia of Industrial Chemistry, 5th Edition, Vol. A25, pp. 635 to 700. Sulfur dioxide (SO 2 ) is converted to sulfur trioxide (SO 3 ). The sulfur trioxide obtain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F3/08
CPCC01B17/74B01F5/0648B01F5/0456B01F5/0463C01B17/80B01F3/0865B01F5/0646B01F5/0453C01B17/69B01F5/0451B01F23/451B01F25/3132B01F25/31322B01F25/31331B01F25/3131B01F25/4332B01F25/433C01B17/76
Inventor K-H·道姆H·艾泽曼W·沙尔克
Owner METSO OUTOTEC (FINLAND) OY
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