| 摘要 |
<p>EP--36748 A A continuous ceramic kiln is operated by adding O2 (-enriched) air to the decarbonisation zone to maintain the O2 concn. in the zone at a predetermined level. The O2 concn. is monitored at a point in the zone pref. where the temp. is 700-875 deg.C. pref. 750-850 deg.C. The predetermined level of 02 is pref. 7.5-11 vol.% esp. 8-8.5 vol.%. - Used esp. in brick kilns. Control of the 02 concn. optimises the rate of decarbonisation and enables the push rate through the kiln to be increased. EPAB- EP--36748 B A continuous ceramic kiln is operated by adding O2 (-enriched) air to the decarbonisation zone to maintain the O2 concn. in the zone at a predetermined level. The O2 concn. is monitored at a point in the zone pref. where the temp. is 700-875 deg.C. pref. 750-850 deg.C. The predetermined level of 02 is pref. 7.5-11 vol.% esp. 8-8.5 vol.%. - Used esp. in brick kilns. Control of the 02 concn. optimises the rate of decarbonisation and enables the push rate through the kiln to be increased. (10pp) - EP--36748 B Continuous ceramic kiln esp. for brickmaking having a decarbonisation zone to which oxygen or oxygen enriched air is supplied is operated in a controlled manner according to the relationship - C=R2/R1 A(1=X) - (C is the desired oxygen level in the decarbonisation zone; R1 is the normal rate of work throughput; A is the average oxygen concentration without any oxygen addn.; and R2 is the new rate of work throughput using additional oxygen. The value of X is 0-0.5. - Pref. the decarbonisation zone is operated at 700-875 (750-850) deg.C. (6pp) GBAB- GB2073384 B A method of operating a continuous ceramic kiln having a decarbonization zone to which oxygen or oxygen enriched air is suppled to maintain the average oxygen concentration in the decarbonization zone at a predetermined level, characterized in that said predetermined level is determined by the equation: C=R2/R1A(1+X) Where C is the predetermined level at a point in the decarbonization zone; R1 is the throughput of ceramic articles during satisfactory operation of the kiln without oxygen addition; A is the average oxygen concentration at said point during satisfactory operation of the kiln without oxygen addition at throughput rate R1; R2 is the new throughput of ceramic articles and X is 0-0.5.h</p> |
