WR Dynamic Belt Scale For Iron And Steel Chemical Industry

Features

• Excellent accuracy and repeatability • Unique parallelogram load cell design • Fast response to material loads • Capable of detecting fast running belt speeds • Rugged construction

Description

WR belt scales are heavy duty, high precision full bridge single roller metering belt scales for process and loading. Belt scales do not include rollers.

Applications

WR belt scale can provide continuous online measurement for various materials in different industries. WR belt scales are widely used in various harsh environments in mines, quarries, energy, steel, food processing and chemical industries, fully proving the excellent quality of WR belt scales. The WR belt scale is suitable for different materials such as sand, flour, coal or sugar. The WR belt scale uses the parallelogram load cell developed by our company, which responds quickly to the vertical force and ensures the sensor's rapid response to the material load. This enables WR belt scales to achieve high accuracy and repeatability even with uneven material and fast belt movements. It can provide instantaneous flow, cumulative quantity, belt load, and belt speed display. The speed sensor is used to measure the conveyor belt speed signal and send it to the integrator. The WR belt scale is easy to install, remove the existing set of rollers of the belt conveyor, install it on the belt scale, and fix the belt scale on the belt conveyor with four bolts. Because there are no moving parts, the WR Belt Scale is low maintenance requiring only periodic calibration.

Dimensions

Belt width	Scale frame installation width A	B	C	D	E	Weight (approx.)
457mm	686mm	591mm	241mm	140mm	178mm	37kg
508mm	737mm	641mm	241mm	140mm	178mm	39kg
610mm	838mm	743mm	241mm	140mm	178mm	41kg
762mm	991mm	895mm	241mm	140mm	178mm	45kg
914mm	1143mm	1048mm	241mm	140mm	178mm	49kg
1067mm	1295mm	1200mm	241mm	140mm	178mm	53kg
1219mm	1448mm	1353mm	241mm	140mm	178mm	57kg
1375mm	1600mm	1505mm	305mm	203mm	178mm	79kg
1524mm	1753mm	1657mm	305mm	203mm	178mm	88kg
1676mm	1905mm	1810mm	305mm	203mm	203mm	104kg
1829mm	2057mm	1962mm	305mm	203mm	203mm	112kg

Specifications

Operation method	Strain gauge load cells measure the load on a belt conveyor
Metrology principle	Stone sorting system
Typical application	Trade and delivery
Measurement accuracy	+0.5 % of totalizer, turndown 5:1Cumulative soil 0.25%, turndown ratio 5:1+0.125% of totalizer, turndown ratio 4:1
Material temperature	40~75°C
Belt design	500 - 2000 mm
Belt width	Refer to dimension drawing
Belt speed	up to 5 m/s
Flow	12000 t/h (at maximum belt speed)
Conveyor Inclined	Fixed inclination relative to horizontal +20°Reaching ±30° will result in reduced accuracy(3)
Roller	From 0°~ 35°
Groove angle	to 45, reduces accuracy(3)
Roller diameter	50 - 180 mm
Roller spacing	0.5~1.5m
Load cell material	Stainless Steel
Degree of protection	IP65
Excitation voltage	Normal 10VDC, maximum 15VDC
Output	2+0.002 mV/V
Nonlinearity and Hysteresis	0.02% of rated output
Repeatability	0.01% of rated output
Rated range	25, 100, 150, 250, 300, 500, 600, 800kg
Maximum range	Safe, 150% of rated capacityLimit, 300 % of rated capacity
Overload	-40-75°C
Temperature	Compensation -18-65°C
Cable	<150 m18 AWG(0.75mm²) 6-conductor shielded cable>150 m~300 m;18~22 AWG(0.75 ~ 0.34 mm²) 8-core shielded cable

1. Accuracy description: On the installed belt measuring system approved by the manufacturer, the cumulative amount measured by the belt scale is compared with the weight of the tested material, and the error is less than the above standard. The amount of test material must be within the design range, and the flow rate must be stable. The minimum amount of material must be the higher of three full revolutions of the belt or 10 minutes. 2. If the belt speed is higher than the value described in the manual, please consult the engineer. 3. Engineer inspection is required.

Installations