Two kinds of gauges which are reusable in measuring the force of the explosion or impact on the explosive sample under setback-impact simulating test have been designed and tested.

Compares the characteristic of air dynamics, hydrodynamics and steam temperature of rotary burner with front wall collocation and front and back wall cross collocation for boiler, analyzes advantage and disadvantage of two type of collocation modes, so effective measures can be taken in boiler design and operation, guarantees the boiler safe and economical operation.