Chemical tower column packing ceramic pall ring with high acid resistance and heat resistance

Product Description  Ceramic pall ring is a kind of random packing further developed based on raschig ring, with two layers of windows opened along its tube wall. The outside diameter is equal to its height. For each layer, there are 5 ligules bending inward the axes of the ring. The open position for windows between the two layers is staggered oppositely. Generally, the area for open windows occupies 30% of the total area of the tube wall. It helps vapor and liquid flow freely through these windows, making full use of the rings inner surface to improve distribution of vapor-liquid. It is able to applied to the drying tower, absorbing tower, cooling tower, desulphurization towers, rectifying tower, washing tower and regenerative tower in petro-chemistry, chemical engineering, coal chemical engineering, elaborate chemical engineering, fertilizer, sulphuric acid, smelting, electrical power and environmental protection industries. Chemical Composition

Composition	Value	Composition	Value
SiO2	68-72%	MgO	0.6%
Al2O3	18-22%	CaO	0.6%
Fe2O3	<1.0%	K2O	3.5-4.5%
Dissociation Fe	<0.01%	Na2O	0.1-0.3%

  Physical Properties

Index	Unit	Value
Specific gravity	g/cm³	2.3-2.4
Water absorption	%Wt	0.1-0.5
Hardness	Moh's Scale	7-8
Compression strength	N /mm²	300-500
Elasticity coefficient	GPa	60
Specific heat, 20°C-100°C	J/kg.K	840-920
Thermal conductivity, 30°C-100°C	W/m.K	1-1.5
Thermal expansion coefficient	10-6K-1	4.7
Acid resistance (DIN51102 sheet 2)	%	99.5
Heat resistance	°C	≥1000

  Technical Data

Specification (mm)	Diameter×Height×Thickness (mm)	Surface area (m2/m3)	Free volume (%)	Number Per m3 (n/m3)	Bulk Density (kg/m3)	Dry packing factor (M-1)
Φ25	25×25×3	210	73	36000	630	540
Φ38	38×38×4	140	75	12000	590	332
Φ50	50×50×5	100	78	4900	520	210
Φ76	76×76×9	70	80	1500	470	137