System for combining multiple fuels to produce controllable gas temperatures in asphalt drum mixers
US4309168A · kind A · utility
8Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Jul 14, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2237/08
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An apparatus which monitors and controls the mass flow rates of two or more fuels and air is connected to a burner of a conventional asphalt drum mixer. Several fuels are combined and ignited to produce predictable burner temperatures. In this manner, fuels which ordinarily burn inefficiently can be used in conjunction with other more combustible fuels to produce hot mix asphalt. The regulation of the total fuel to air ratio results in controlled combustion which reduces overheating of the asphalt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.