UD-Line


Challenge in reagent dosing.

In the dosage of reagents for mining there is the main challenge of the unknown chemical formulation of reagents, coupled with an evolution to stronger collectors which require a smaller amount of flow to dose. The UD-Line® Reagent Dosing System integrates the measurement of the dosed flow and its design is based on the correct selection of materials according to the chemical compatibility of the reagent used, resulting in a high precision and low maintenance system.

Unknown chemical formulation, important characteristics:

a) Corrosives (Collectors that attack SS316)
b) Solvents (Collectors that attack plastics)
c) Flammable (Diesel and collectors)
d) High risk to health (NaSH, CuSO4, etc.)


The dosing system design follows this classification of the reagents. This makes it difficult to define the materials of the dosing system components in contact with the reagent, especially seals and gaskets.

The evolution to stronger collectors, which imply doses lower than 20 ml / min even in large mining. Micro flow dosing system design (<100 ml / min).

Architecture

System characteristics

System Components


  1. Day tank
  2. Pressurization Skids
  3. UD-Line master
  4. UD-Line modules
  5. Reagent distributor
  6. Sampling station
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Models


UD-Line® MFM

Multiplex System for micro dosing less than 200 ml/min.

Typical application: Collectors and foaming reagent.

DETAILS

2 Multiplexor Units

Up to 12 channels

Up to 2 reagents

Calibration Module

Flow Range: 5-300 ml/min Process

Process Material: PTFE/CPVC/SS



UD-Line® PFM

Multiplex system for the dosage of flows above 200 ml/min.

Typical application: Xanthate and other water soluble collectors.

DETAILS

2 Multiplexor Units

Up to 12 channels

Up to 2 reagents

Calibration Module

Flow Range: 100-1,000 ml/min Process

Material: PTFE/CPVC/SS



UD-Line® MFD

Continuous flow system for micro dosage below 200 ml/min.

Typical application: Defoamer, antifouling.

DETAILS

Up to 8 independent channels

Up to 2 reagents

DETAILS

Up to 8 independent channels

Up to 2 reagents



UD-Line® PFD

Continuos flow system for flow range over 200 ml/min.

Typical application: NasSH, cyanide, sulfuric acid, Zn sulfate y Cu sulfate.

DETAILS

Up to 8 independent channels

Up to 2 reagents

Calibration Module

Flow Range: 1,000– 7,000 ml/min

Material: PTFE / CPVC / SS.



UD-Line® SFD

Dosing system skid type for flow range over 7 l/min.

Typical application: NaSH, flocculant, sulfuric acid.

DETAILS

Up to 8 independent channels

Up to 2 reagents

Calibration Module

Flow Range: 2 – 30 l/min.

Material: HDPE/ CPVC / SS



Installed base


1

Plant: Concentradora “La Caridad”
Location: Nacozari, Sonora, Mexico.

Description

Reagents: 4

Teuton1018

Frother

C-8944

T-609

Flex 31

Dosage Points: 70

24 UD-Line

3

Plant: Concentradora II y Planta de Molibdeno II “Buenavista del Cobre”
Location: Cananea, Sonora, Mexico.

Description

Reagents: 8

T-1018

T 100-50

SPRI 156

Flex 31

NaSH

NaCN

MIBC

Antifouling

Dosage Points: 120

46 UD-Line

5

Plant: ASARCO South Mission, Grupo Mexico.
Location: Arizona, USA.

Description

Reagents: 2

A238

PINEOIL

Dosage Points: 4

1 UD-Line

7

Plant: Toquepala Expantion Project, SPCC.

Description

Reagents: 10

MCC-C3320(C1)

AR-G431 (C2)

AR-3322 (C3)

CC-1225 (Esp)

Diesel2

NaSH

Antiscalant

Sulfuric Acid

Antifrother

Dosage Points: 142

18 UD-Line

2

Plant: Concentradora I “Buenavista del Cobre”
Location: Cananea, Sonora, Mexico.

Description

Reagents: 4

T-1018

Frother

C-8944

T-609

Dosage Points: 26

10 UD-Line

4

Plant: Minera Chinalco Peru S.A.
Location: Toromocho, Peru.

Description

Reagents: 1

PAX

Dosage Points: 3

1 UD-Line

6

Plant: Madero Mine, Grupo Peñoles.
Location: Zacatecas, Mexico.

Description

Reagents: 3

FrotherTeuton100

Collector Flotec1234

Aerophine

Dosage Points: 12

4 UD-Line

8

Plant: Unidad Madero, Grupo Peñoles.
Location: Zacatecas, Mexico.

Description

Reagents: 2

Xantathe

Sodium Cyanide

Dosage Points: 8

2 UD-Line

9

Plant: Palmarejo, Grupo Coeur.
Location: Palmarejo,Chihuahua.

Description

Reagents: 3

Xanthate

Frother

Promoter

Dosage Points: 8

1 UD-Line

10

Plant: ASARCO North Mission, Grupo Mexico.
Location: Arizona, USA.

Description

Reagents: 2

Collector

Frother

Dosage Points: 12

2 UD-Line