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Making method of honeycomb ceramic support protective agent

A technology of honeycomb ceramics and manufacturing methods, applied in the field of ceramics, can solve the problems of high price, high cost, and poor performance of honeycomb ceramics, and achieve the effects of high product quality, light weight, and good acid and alkali resistance

Active Publication Date: 2017-05-31
HUNAN JINLIANXING SPECIAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of the produced honeycomb ceramics is relatively poor
Nowadays, in order to improve its various physical properties, new high-performance raw materials are constantly being developed and applied in the field of ceramics, such as diatomite, zeolite, expansive soil, cordierite, mullite, aluminum titanate, activated carbon, silicon carbide, Zirconia, activated alumina, etc., and composite substrates such as cordierite-mullite, cordierite-aluminum titanate, etc., but these raw materials are very expensive and costly

Method used

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  • Making method of honeycomb ceramic support protective agent
  • Making method of honeycomb ceramic support protective agent
  • Making method of honeycomb ceramic support protective agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Manufacture of Φ3×6 high-quality honeycomb ceramic support and protection agent:

[0037] Weigh 127.5Kg of high alumina mud (moisture content: 26.7%), calcined α-alumina 3.75Kg (moisture content ≤0.3%, D50 is 3-5um, D90<10um), cellulose 13.50Kg, hard Aluminum fatty acid 2.25Kg, rapeseed oil 3.00Kg; then pour the high alumina mud weighed into the kneading tank, knead for 5 minutes, and mix the prepared calcined α-aluminum trioxide, cellulose, aluminum stearate, Put the rapeseed oil into the kneading tank in order, and then knead for 25 minutes; slowly put the kneaded mixed mud into the feed port of the vacuum mud mill at -0.086MPa, and put the extruded material into the container at the discharge port. In the material tray; then cut the mud into 20-30cm / root, and then extrude it in an extruder of 18MPa to extrude the molded green body; cut the green body into 15-20cm mud strips; then put Put the mud strip into the cutting machine and cut it to get the semi-finished hone...

Embodiment 2

[0040] Manufacture of Φ6×6 high-quality honeycomb ceramic support and protection agent:

[0041]Weigh 130.9Kg of high alumina mud (moisture content: 26.7%), calcined α-alumina 3.85Kg (moisture content ≤0.3%, D50 is 3-5um, D90<10um), cellulose 13.86Kg, hard Aluminum fatty acid 2.31Kg, rapeseed oil 3.08Kg; then pour the high alumina mud weighed into the kneading tank, after kneading for 5 minutes, mix the calcined α-aluminum trioxide, cellulose, aluminum stearate, Put the rapeseed oil into the kneading tank in order, and then knead for 25 minutes; slowly put the kneaded mixed mud into the feed port of the vacuum mud mill at -0.086MPa, and put the extruded material into the container at the discharge port. In the material tray; then cut the mud into 20-30cm / root, and then extrude it in a 22MPa extruder to extrude the formed green body; cut the green body into 15-20cm mud strips; then put Put the mud strip into the cutting machine and cut it to get the semi-finished honeycomb cer...

Embodiment 3

[0044] Manufacture of Φ13×10 high-quality honeycomb ceramic support and protection agent:

[0045] Weigh 129.2Kg of high alumina mud (moisture content: 26.7%), calcined α-alumina 3.80Kg (moisture content ≤0.3%, D50 is 3-5um, D90<10um), cellulose 13.68Kg, hard Aluminum fatty acid 2.28Kg, rapeseed oil 3.04Kg; then pour the high alumina mud weighed into the kneading tank, after kneading for 5 minutes, mix the prepared calcined α-aluminum trioxide, cellulose, aluminum stearate, Put the rapeseed oil into the kneading tank in order, and then knead for 25 minutes; slowly put the kneaded mixed mud into the inlet of the vacuum mud mill at -0.086Mpa, and put the extruded material at the outlet. In the material tray; then cut the mud into 20-30cm / root, and then extrude it in a 28MPa extruder to extrude the formed green body; cut the green body into 15-20cm mud strips; then put Put the mud strip into the cutting machine and cut it to get the semi-finished honeycomb ceramic protective age...

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Abstract

The invention relates to a making method of a honeycomb ceramic support protective agent. The making method comprises the following steps: 1. batching: weighing and preparing raw materials: 80-90 parts by weight of high alumina clay, 2-3 parts by weight of calcined alpha-aluminum oxide, 8-10 parts by weight of celluloses, 1-2 parts by weight of aluminum stearate and 1-3 parts by weight of rapeseed oil according to the mass ratio; 2. kneading; 3. vacuum pugging; 4. extrusion molding; 5. cutting off; 6. cutting to obtain formed honeycomb ceramic protective agent semi-finished products; 7. screening and selecting: selecting out the deformed and cracked honeycomb ceramic support protective agent semi-finished products, and returning the step 3; 8. placing in a kiln, sintering and forming. The making method provided by the invention is simple in process, convenient to operate, low in labor intensity, stable in product quality and very environment-friendly in the high quality production process.

Description

technical field [0001] The invention belongs to the technical field of ceramics, in particular to a method for manufacturing a honeycomb ceramic support and protection agent. Background technique [0002] Honeycomb ceramics is a new type of ceramic product with a honeycomb-like structure developed in the past 30 years. It is one of the main projects of the 13th Five-Year Plan. [0003] Honeycomb ceramic products have many uses, such as catalyst carrier, refractory kiln furniture, wall flow filter, etc. Honeycomb ceramic products have been widely used in electric power, chemical industry, metallurgy, petroleum, electronic appliances, machinery and other industries since they were first used in the purification of small automobile exhaust gas, and are becoming more and more widely used, with considerable development prospects. Important fixed-bed reactor equipment in oil refining, petrochemical, environmental protection, and metallurgy industries (mainly used for catalytic re...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/636C04B38/00
Inventor 李云龙陈建春戴振华文勇毛祥兵
Owner HUNAN JINLIANXING SPECIAL MATERIALS CO LTD
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