Drive module and its uses, a flotation plant and a method of changing of the drive module

Patent metadata

Field	Value
Publication number	US-10137460-B2
Application number	US-201515571891-A
Country	US
Kind code	B2
Filing date	May 13, 2015
Priority date	May 13, 2015
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A drive module which is a self-supporting structure being transferable and hoistable as an integral entity. The drive module includes a self-supporting framework having a shape of a rectangular parallelepiped. The self-supporting framework defines an inner space within the self-supporting framework. The drive module also includes at least two drive units. The drive units are supported to the self-supporting framework in the inner space of the self-supporting framework. The drive units are connectable to an external rotatable shaft for the rotation of the rotatable shaft located outside the drive module.

First claim

The invention claimed is:

1. A drive module selectively detachable from flotation tanks of a flotation plant, wherein the drive module is a self-supporting structure being transferable and hoistable as an integral entity, the drive module comprising:
a self-supporting framework having a shape of a rectangular parallelepiped, the self-supporting framework defining an inner space within the self-supporting framework, and
at least two drive units, the at least two drive units being supported to the self-supporting framework in the inner space of the self-supporting framework, each of the at least two drive units including a drive shaft having a connection flange supported thereon, wherein the connection flange of each of the at least two drive units is located at the bottom of the inner space and is connectable to an external rotatable shaft for the rotation of the rotatable shaft, the rotatable shaft being located outside the drive module.

2. The drive module according to claim 1 , wherein the drive unit comprises:
a motor; and
a reduction gear connected to the motor, the motor comprising an output shaft, the output shaft being connected to the reduction gear, and that the drive unit comprises a drive shaft, the drive shaft being connectable to the reduction gear and the drive shaft is connectable to the external rotatable rotor shaft.

3. The drive module according to claim 2 , wherein the drive module comprises:
a frame, the frame being fixed to the self-supporting framework and configured to support the motor, the reduction gear unit and the drive shaft.

4. The drive module according to claim 1 , wherein the drive module comprises:
a gas feed pipeline for supplying flotation gas.

5. The drive module according to claim 4 , wherein the gas feed pipeline is located in the inner space of the self-supporting framework above and offset in relation to the drive units.

6. The drive module according to claim 4 , wherein the drive module comprises:
a flow meter connected to the gas feed pipeline for measuring the rate of flow of the flotation gas.

7. The drive module according to claim 4 , wherein the drive module comprises:
a flow rate controller connected to the gas feed pipeline for regulating the rate of flow of the flotation gas.

8. The drive module according to claim 1 , wherein the drive module comprises:
measurement equipment for the measurement of liquid level in a flotation tank, when in use.

9. The drive module according to claim 1 , wherein the drive module comprises:
a froth camera for detecting bubble size of a froth, when in use.

10. The drive module according to claim 1 , wherein the self-supporting framework comprises a maintenance platform.

11. The drive module according to claim 1 , wherein the self-supporting framework comprises a cable tray for supporting electric cabling.

12. The drive module according to claim 1 , wherein the self-supporting framework is made of metal beams to form a rectangular parallelepiped.

13. The drive module according to claim 1 , wherein the drive module comprises 2 to 6, preferably 2 to 4, drive units.

14. A flotation plant comprising a drive module according to claim 1 .

15. A method of operating the drive module, comprising:
providing a drive module according to claim 1 ; and
separating material by flotation based on differences of buoyancy properties of substances, or
separating solid material by froth flotation based on differences of hydrophilic properties of substances, or
concentrating ore by froth flotation, or
flotation of substances containing abrasive material, or
froth flotation of ore containing pyrite, silica, or chromite.

Assignees

• Outotec Finland Oy

Inventors

• Tähkiö Pekka
• Vaarna Valtteri
• Luukkonen Matti

Classifications

• F16M3/00

  Portable or wheeled frames or beds, e.g. for emergency power-supply aggregates, compressor sets (construction of vehicles in general B60 - B62) · CPC title

• B03D1/1406

  with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another · CPC title

• B03D1/14

  Flotation machines (devices for feeding measured quantities of reagents B01J4/02; flotation apparatus for enzymology or microbiology C12M1/09) · CPC title

• B03D1/028 Primary

  Control and monitoring of flotation processes; computer models therefor · CPC title

• B03D1/20

  with internal air pumps · CPC title