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Triformaldehyde was refined and separated by 500X corrugated wire mesh packing tower. The purity of the product is more than 99.9% and the impurity content is less than 300 ppm.
500 type wire mesh structured packing used in Phenol distillation column, instead of part of Cascade Mini Ring.
Vacuum distillation unit for dimethyl terephthalate, with 500 wire gauze packing.
Pentaerythritol production device, 500 type wire mesh structured packing tower.
Nitrotoluene isomers are separated by vacuum distillation with 700Y corrugated wire mesh packing.
Ethylene oxide technology upgrades, using 700Y metal mesh corrugated packing and 250Y metal orifice corrugated packing instead of two floating valve towers.
Hualai wire mesh structured packing products list (normal):
Type
Specific Surface
Bulk Density
Void Ratio
obliquity
ΔP
Liquid spray density
Liquid holdup
Theo. Plate
HETP
F factor
Application②
(m2/m3)
(kg/m3)
(%)
Angle
(Pa/plate)
(m3/m2*h)
%
(piece/m)
mm
(m/s)*(kg/m3)0.5
250(AX)
250
45①
98.5
30
10-40
0.2-12
2
2.5-3
100
2.5-3.5
Precision distillation with few theoretical series
500(BX)
500
95①
96.9
30
50
0.2-12
4.2
4-5
200
2.0-2.4
Vacuum Distillation of Thermosensitive and Difficult Separation Systems
700(CY)
700
130①
95.6
45
67
0.2-12
6
8-10
333-400
1.5-2.0
Isotopic mixture, isomeric mixture separation
①The data are based on 0.12mm wire, stainless steel material. Applicable temperature (-200—400)℃. 0.15mm and 0.17mm wire are also available.
②Metal wire mesh corrugated packing is suitable for clean gas-liquid system without solid particles or suspended solids or not easy to self-assemble.
Characteristics of packed tower
Compared with plate column, packed column has certain advantages, especially in recent years, a variety of new and efficient packing has been developed, which has more prominent advantages and wider application range. Its specific characteristics are as follows: 1. The pressure drop is very low, which can be used in vacuum distillation and other operating systems with limited pressure drop. 2. With the development of new high efficiency packing, the production capacity (allowable gas velocity) and efficiency of packed tower are equal to or exceed those of plate column. Many units at home and abroad use new packing to transform plate column, which greatly improves production capacity and efficiency. 3. Flexible operation. 4. It can deal with foaming system. 5. General fillers are easy to be blocked by suspended solids in the liquid, while some grid fillers with large void fraction have self-cleaning effect under high gas velocity scouring, and are not easy to be blocked, and their heat transfer performance is better than that of baffles. 6. The material selection of fillers is wide, such as metal, plastic, ceramic, graphite, etc., which is suitable for wider chemical system and operating system. 7. Small liquid holding capacity, suitable for the treatment of heat sensitive materials. 8. The total investment cost of small tower (diameter ≤ 0.6m) is lower than that of plate tower, but the investment cost of large tower is higher. 9. The heat exchange in the middle of the tower is inconvenient. 10. It is difficult to draw out the side line and the structure is complex. 11. High requirements for initial gas-liquid distribution. The process control is difficult because of its small liquid holding capacity and sensitivity.
Wire mesh structured packing SS316L in production
Welcome your inquiry about Hualai structured packing any time!
We do business in this line sinice 2009. We have the lower price , high quality, prompt delivery, beautiful packing , and advance tehonogy, we are able to meet all our customers' need .
Meanwhile OEM /ODM services are available, Welcome friends from all walks of life come to visi... We do business in this line sinice 2009. We have the lower price , high quality, prompt delivery, beautiful packing , and advance tehonogy, we are able to meet all our customers' need .
Meanwhile OEM /ODM services are available, Welcome friends from all walks of life come to visi...
