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Valve devices for flotation cells

A flotation cell and valve device technology, applied in the field of valve devices, can solve the problems of increased cost, difficulty in setting the size of arrow valve components, high cost, etc.

Inactive Publication Date: 2019-05-28
F L SMIDTH & CO AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the geometry of the box makes it difficult to size the arrow valve member
Thus, while the external atmospheric pressure valve assembly design / configuration would reduce stress on seals, gaskets or seal rings and reduce the potential for leaks, it adds significantly to cost, complexity, weight (due to slurry or slurry buffer padding), and significantly increased space requirements and still did not overcome some drawbacks (e.g. removal and sizing issues)
As with the external pressurized valve device described above, Figure 10 and 14 The external atmospheric pressure system shown would require a higher cost than the solution proposed here

Method used

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  • Valve devices for flotation cells
  • Valve devices for flotation cells
  • Valve devices for flotation cells

Examples

Experimental program
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Effect test

Embodiment Construction

[0038]The figure shows a first flotation cell 10 (eg, an "upstream" flotation cell cell) having a bottom plate 11 and an optional sloping lower baffle 12 . The first flotation cell pool 10 overflows into the second flotation cell pool 20 ( For example, an "upstream" flotation cell). As shown, the second flotation cell 20 may have a floor 21 and / or a sloped lower baffle 22 . Although not explicitly shown, a third, fourth and / or fifth flotation cell pond 20 may be disposed consecutively downstream of the second flotation cell pond 20 to form a flotation cell bank / flotation circuit (e.g. , rougher / scavenger circuit).

[0039] The second flotation cell 20 includes at its upstream portion a valve assembly 30 adjacent to the outlet flange 49 of the first flotation cell 10 and connected to the inlet flange 41 of the second flotation cell 20. Proximity, the valve assembly 30 may extend radially inward into the second flotation cell 20 and radially outward out of the second flotatio...

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PUM

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Abstract

The invention discloses a valve device for a flotation tank, comprising: a valve assembly having an arrow portion attached to the distal end of a linear actuating valve stem; the valve assembly is disposed on the upstream side of the flotation tank, Wherein the valve assembly includes a tank in fluid communication with the upstream flotation cell. A flotation method is also disclosed, comprising: providing a valve assembly having an arrow portion attached to a distal end of a linearly actuated valve stem; the valve assembly is disposed on an upstream side of the flotation tank, wherein the valve assembly includes a tank in fluid communication with an upstream flotation cell; and linearly adjusting the linearly actuated valve stem to increase or decrease the flow rate of slurry or slurry between the flotation cell and the upstream flotation cell.

Description

[0001] cross reference [0002] This application claims priority to U.S. Provisional Patent Application No. 61 / 992,491, filed May 13, 2014, and entitled "VALVE APPARATUS FOR FLOTATIONCELLS." Its entire content is hereby incorporated for any and / or all purposes. technical field [0003] The present invention relates to flotation cells, and more particularly to a valve arrangement for transferring slurry or slurry from one flotation cell cell to another flotation cell cell in a controlled manner. Background technique [0004] figure 1 The performance characteristics of a number of conventional valve arrangements that have been used in flotation plants today are shown. Such as Figure 2-14 As shown, existing valve arrangement designs for flotation cells use dart valves, but have certain limitations and disadvantages due to their physical construction / arrangement. [0005] The problem with prior art downstream arrow valve designs and / or configurations is, as Figure 12 As s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/14F16K1/36F16K25/00
CPCB03D1/1443F16K27/07
Inventor A.卡莫迈尔M.沃克B.格克
Owner F L SMIDTH & CO AS