該支撐結構由梁，瓷格柵和填料組合而成，它的主要特點是：綜合開孔率可迭55%以上，能適用15-2m/s的高氣速要求，產品制作容易，造價低。對支撐結構進行維修，更換非常容易。

Grate Combination Ceramic Bar Arch made up of bars and grates its main features are over 55%synthetical opening rate,ease of assembly,malintenance and repIacement,low cost.fitting the equipments of 1.5-2m/s gas speed.

大開孔雙、單層全瓷球拱、橋拱是新型的硫酸干、吸收塔填料的支承結構。它與舊式結構相比，氣液分布均勻，機械強度高，安全系數大，穩(wěn)窟性好，耐腐蝕性強，施工方便，使用壽命長，經許多硫酸廠應用，效果極好。

開孔率≥65%耐酸度≥99 8%

Large hole-opening ceramic arch,dome and bridge are new packiing support structure used in dry and absorption tower In sulfuric acid plant They have great advantages over the former support in its unitorm gas

and liquid distribution,high strength and reliable structure stability,corrosion resistance and convenient for installation

Hole fraction≥65%Acid resistance≥99.8%