LFY-640A Conveyor belt flame retardant performance tester

LFY-640A Conveyor belt flame retardant performance tester

The main purpose
The gas burner burning test method used in this test is used to evaluate the reaction of the conveyor belt in a fire, and the test results are helpful to evaluate the flammability of products or materials. Suitable for fabric core conveyor belts and steel cord conveyor belts.
Instrument characteristics
Place the sample cut off the conveyor belt vertically in the flame for a certain period of time, and record the duration of the open flame and the duration of the flame of the sample after the torch is evacuated. Then, blow a stream of air to the sample and record its re-ignition.
Technical index
1. Flame temperature: 1000±20℃
2. Gas blowtorch (Bunsen type)
3. The inner diameter of the nozzle: Ф10mm
4. Timer: (0~99.99)±0.01s
5. Inclination angle of blowtorch: 45°
6. Fuel used: Gas source: Industrial propane gas (GB 9162: 1989)
7. Specimen size: length (200±5) mm, width (25±1) mm; 3 pieces each in vertical and horizontal directions.
8. Power supply: AC220v; 50Hz; 100W.
Applicable standards
GB/T 3685-2009  Conveyor belts—Laboratory scale flammability characteristics— Requirements and test method
AQ 1022-2006 Bag filter for coal mine 5.3.2
MT/T 159-2019 Universal technical specification for dust collection enginery for mine
MT 113-1995 General test methods and judgment rules for flame retardant and antistatic properties of polymer products used in underground coal mines