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Structured square-mesh ceramic packing

A technology of structured packing and mesh, applied in chemical instruments and methods, chemical/physical/physical chemical processes, chemical/physical processes, etc., can solve the problems of reducing the performance index and limitations of packing products, and achieve the benefit of gas-liquid exchange Mixing, weight reduction, microporous effect

Active Publication Date: 2016-05-04
JIANGXI PINGXIANG FANGSHANG CHEM PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to preliminary understanding, some manufacturers reduce the amount of alumina added, and add waste materials (such as fly ash from power plants, slag from smelters, and coal gangue from coal mines) after processing as raw materials for preparing fillers, and make full use of them. Composition, turning waste into treasure is an effective way to solve environmental pollution. It can also save a large amount of aluminum-silicon mineral raw materials and reduce the manufacturing cost of fillers. However, under the same or similar conditions of structure and shape, the performance indicators of filler products will be reduced, especially It is the indicator of structural strength and gas-liquid flow distribution, so that this kind of packing product can only be used in water treatment, and its use in the packing tower of the chemical industry with strong alkali, strong acid and high pressure is subject to some restrictions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1, the square mesh ceramic structured packing includes an upper panel 11 and a lower panel 12 and a cross square hole 1 arranged between the upper panel and the lower panel, and the periphery of the cross hole is arranged symmetrically There are four L-shaped square fold holes 2, and the upper panel and the lower panel are respectively provided with eight inner flow holes 6 communicating with the cross square holes and twelve outer flow holes 5 communicated with the L-shaped square fold holes , a central flow hole 7 is set in the middle of the cross square hole, corner grooves 8 are set on the four corners of the filler, and the cross flow hole 3 and the vertical flow hole are arranged on the wall of the cross square hole and the L-shaped square fold hole wall 4. In order to facilitate the superposition and accumulation of square fillers, four outer blocks 9 are arranged on the four corners of the upper panel, and four inner blocks 10 are matched with the oute...

Embodiment 1

[0040] Embodiment 1 detects that each technical index is:

[0041] Compressive strength: 15.6Mpa Water absorption: 9.3%

[0042] Acid resistance ≥ 99.8% Bulk density: 1.98g / cm3

[0043] Alkali resistance ≥ 97.5% Bulk porosity: 87%

[0044] Thermal stability: Tested 2-3 times at 300-20°C, no damage to the sample.

Embodiment 2

[0045] Embodiment 2, said a square mesh ceramic structured packing, its shape is the same or similar to that of Embodiment 1, and is prepared according to the following main steps:

[0046] 1. According to the weight ratio of 40% kaolin, 22% calcined alumina, 29% coal gangue, 4% plasticizer, 3% waste bamboo powder, and 2% strontium-aluminum alloy powder, add the above raw materials into the ball mill evenly Mixing and grinding, the coal gangue is clay and aluminous rock gangue with an alumina content of 26-36% and a silica content of 52-65%. According to the weight ratio of 40% kaolin, 21% calcined alumina, 28% coal gangue, 5% plasticizer, 4% waste bamboo powder, and 2% strontium-aluminum alloy powder, add the above raw materials into the ball mill for uniform mixing and grinding , the coal gangue is clay and aluminous rock gangue with an alumina content of 26-36% and a silica content of 52-65%, and the plasticizer is a phthalate compound,

[0047] 2. The mixed material after...

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Abstract

The invention discloses a structured square-mesh ceramic packing. The structured square-mesh ceramic packing comprises an upper expanded plate (11), a lower expanded plate (12) and a cross square hole (1) formed between the upper expanded plate and the lower expanded plate; the circumference of cross square hole is symmetrically provided with L-shaped square bent holes (2); the upper expanded plate and the lower expanded plate are separately provided with internal flow holes (6) communicated with the cross square hole and external flow holes (5) communicated with the L-shaped square bent holes; and the wall of the cross square hole and the walls of the L-shaped square bent holes are provided with transverse flow holes (3) and longitudinal flow holes (4). The packing is prepared by adding, by weight, 30 to 40% of kaolin, 20 to 40% of calcined alumina, 25 to 30% of gangue, 2 to 5% of a plasticizer, 2 to 4% of waste bamboo powder and 1 to 3% of strontium-aluminium alloy powder into a ball mill for uniform mixing and grinding and then successively carrying out shaping, drying and high temperature sintering. According to the invention, the compressive strength of the packing is improved; load of a packed tower is reduced; and waste articles are used and production cost is lowered.

Description

technical field [0001] The invention relates to a mass transfer medium in industrial tower equipment such as chemical industry, sulfuric acid, nitric acid, environmental protection and coking, in particular to a high-efficiency packing for gas-liquid mass transfer used in industrial towers. Background technique [0002] The most commonly used gas-liquid mass transfer equipment in the chemical industry, sulfuric acid and other industries is the packed tower. The filler refers to the material filled in the industrial tower. The function of the filler is to increase the contact area of ​​the gas and liquid in the tower, so that the gas and liquid can be fully mixed with each other. , thereby removing harmful substances in gas and liquid. Since the industrial tower equipment operates under acid and alkali and pressure, the packing is not only required to have high structural strength, acid and alkali corrosion resistance, but also a large specific surface area, a high stacking p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/30
CPCB01J19/30B01J19/305B01J2219/304B01J2219/318
Inventor 尹录慧尹贺军
Owner JIANGXI PINGXIANG FANGSHANG CHEM PACKING CO LTD