SITRANS WW500 Siemens

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SITRANS WW500 is designed for industrial applications such as cement, steel, and other heavy-duty industries that convey clinker, granulated blast furnace slag or petroleum coke.

Robust heavy duty components ensure a long life of reliable feeding and control. Field tested and proven in hundreds of applications, it enhances profitability by ensuring accuracy, reducing downtime, and improving accountability and record keeping. The unique weigh system reduces dead load and applies live load directly to load cells for accurate measurement, without the use of check rods, pivots or bearings. The four load cells are mounted below the apron pans to ensure protection and help with heat dissapation.

It is available in a variety of lengths to suit existing application requirements and apron widths up to 2 500 mm (98 inch), several different inlet configurations and materials of construction. It can be configured to suit various applications.

Обзор



SITRANS WW500 is a heavy duty high-capacity apron weighfeeder used for extremely harsh applications.

Чертеж



SITRANS WW500, dimensions in mm (inch)

Особенности


  • Rugged, durable design for heavy-duty applications
  • Handles medium- to high-capacity loads
  • Standard mild steel open or enclosed construction
  • Heavy-duty chain and sprockets for reliable conveying
  • Easy to access maintenance and adjustment components
  • Spring tensioned chain stretchers

Технические данные



Mode of operation

 

Measuring principle

Strain gauge load cells and digital speed sensor

Typical application

Industrial and process applications in feeding, blending or rationing in cement manufacturing

Measuring accuracy

 

Accuracy1)

± 2 % or better

Repeatability

± 0.1 %

Specified range

33 ... 100 % based on speed

Design rate range

10 ... 2 000 t/h (11 ... 2200 STPH)

Max volumetric flow

1 500 m3/h (53 000 ft3/h)

Medium conditions

 

Material temperature

-40 ... +150 °C (-40 ... 300 °F)

Operating temperature

-40 … +65 °C (-40 … +150 °F)

Material

Mild steel with abrasion resistant contact parts optional

Load cells

 

Construction

17-4 PH (1.4568) stainless steel or nickel plated alloy steel

Degree of protection

IP67

Excitation

10 V DC nominal,
15 V DC maximum

Output

2 mV/V

Non-linearity

± 0.02 % of rated output

Non-repeatability

± 0.01 % of rated output

Capacity

50, 100, 250, 500, 750, 1 000 lb

Overload

150 % of rated capacity

Temperature

  • Operating range: -40 … +65 °C (-40 … +150 °F)
  • Compensated: -10 … +40 °C (15 … 104 °F)

Speed sensor

 

WS300 Output

See page 4/45

Framework

Painted structural steel

Sprockets

Heavy duty chain sprockets for positive apron conveying

Pan support

Heavy-duty steel rollers

Pan speed

0.01 ... 0.25 m/s (2 ... 50 fpm)

Bearings

Heavy duty pillow block style on head sprockets

Heavy duty take up style on tail sprockets

Chain

Per ISO1977:2000 and conforming to regulations of GB/T8350-2003

Chain tension

  • Screw type, with take up bearings
  • Spring tensioned

Drive motor

AC, TEFC, 4:1 CT inverter duty, drive motor with direct coupled flange mounted hollow bore KA gear reducer, 1.2 service factor min.

Shipping weight

900 kg (2 000 lb) minimum

Approvals

  • CE on all electrical components
  • Hazardous approvals available on electrical components

Note: Weighfeeder as a whole is not approved for hazardous locations, only electrical components.



1) Accuracy subject to: On factory approved installations, the weighfeeder system’s totalized weight will be within the specified accuracy when compared to a known weighed material test sample. The test rate must be within the specified range of the design capacity and held constant for the duration of the test. The minimum material test sample must be equivalent to a sample obtained at the test flow rate for three revolutions of the belt or at least ten minutes running time, whichever is greater.