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Ceramic heat exchanger, composite ceramic material and production method thereof

A technology of ceramic materials and production methods, applied in the field of refractory materials and heat exchangers, can solve the problems of lowering the temperature recovered by the heat exchanger, cannot be used directly, and low energy utilization rate, and achieves fuel saving, strong applicability, and production. Method Mature Effect

Inactive Publication Date: 2006-12-13
翟延军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the heat exchangers currently used are metal heat exchangers, and they can only be used at low temperatures. When the gas temperature is high, they cannot be used directly. A large amount of cold air must be mixed in, and high temperature protection is required, such as cold air machine and control system
When cold air is added, the temperature recovered by the heat exchanger will decrease, and the heat exchange effect will be poor, resulting in waste of energy
[0003] Due to the current energy shortage in our country and the low utilization rate of energy, it has caused a lot of waste of energy. In order to improve the utilization rate of energy, it is urgent to produce and use products with good energy saving effects.

Method used

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  • Ceramic heat exchanger, composite ceramic material and production method thereof
  • Ceramic heat exchanger, composite ceramic material and production method thereof
  • Ceramic heat exchanger, composite ceramic material and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Embodiment one: ceramic material and production method thereof

[0045] Its production process steps include raw material selection and preparation, ball milling, filtration, mixing, mud refining, aging, scouring, extrusion molding, drying, sintering, finished product inspection, assembly and storage. The detailed steps are:

[0046] 1. Weigh mullite powder, cordierite powder, talc powder, clay powder, α-Al 2 o 3 As base material component A, the weight percentages of various components in the base material are: mullite powder 20%, cordierite powder 40%, talc powder 10%, clay powder 10%, α-Al 2 o 3 20%;

[0047] Weigh mullite and cordierite as aggregate component B, the weight percentage of these two components in the aggregate is 16% for mullite with a particle size of 0-0.5mm, and 36% for mullite with a particle size of 0.5-1mm. %, cordierite with a particle size of 0-0.5mm is 34%, and cordierite with a particle size of 0.5-1mm is 14%. The weight ratio of the two...

Embodiment 2

[0056] Embodiment two: ceramic material and production method thereof are basically the same as embodiment one, and the similarity is no longer described, and the difference is:

[0057] 1. Base material component A, mullite powder 40%, cordierite powder 20%, talc powder 20%, clay powder 10%, α-Al 2 o 3 The particle size of 10% base material is 220 mesh.

[0058] In the aggregate component B, mullite with a particle size of 0-0.5mm is 36%, mullite with a particle size of 0.5-1mm is 16%, cordierite with a particle size of 0-0.5mm is 14%, cordierite with a particle size of 0.5-1mm was 34%. The weight ratio of the two components A and B is 1:1, and then add 1% of the binder accounting for the total weight of the two components A and B.

[0059] 2. Measure and weigh according to the formula of the base material, add water (the weight ratio of water to the base material is 1:3), send it into a wet ball mill for grinding for 10-12 hours, and the particle size after grinding is 3...

Embodiment 3

[0062] Embodiment three: ceramic material and production method thereof are basically the same as embodiment one, and the similarity is no longer described, and the difference is:

[0063] 1. Base material component A: mullite powder 25%, cordierite powder 25%, talc powder 30%, clay powder 10%, α-Al 2 o 3 10%;

[0064] In the aggregate component B, the mullite with a particle size of 0-0.5mm is 20%, the mullite with a particle size of 0.5-1mm is 20%, the cordierite with a particle size of 0-0.5mm is 30%, and the cordierite with a particle size of 0.5-1mm is 30%.

[0065] The weight ratio of the two components A and B is 1:1.5, and then add 0.8% of a binder accounting for the total weight of the two components A and B.

[0066] 2. During sintering, the temperature is controlled at 1350°C, sintered for 40 hours according to the usual shelf life, kept for 5 hours, cooled to below 500°C and released from the furnace.

[0067] Sintering temperature rise requirements, the tempe...

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Abstract

The invention discloses a ceramic transducer, ceramic material and their preparing method. The ceramic material comprises base material a, skeletal material B and anchoring agent. The A comprises 20-40% mullite powder, 20-40% dichroite powder, 10-36% talcum powder, 10-30% pug powder, and 10-20%alpha-Al2O3 powder, and the B comprises 32-72% mullite and 28-68% dichroite; the proportion by weight of the A and B is 1-1.5:1-1-1.5. The method comprises the following steps: making a mud cake, adding B and anchoring agent, pugging, staling, shaping, drying and clinkering. The sintering temperature is 1300-1400Deg.C, and agglomeration time is 36-48 hours. The invention is suit for industrial production.

Description

[0001] 1. Technical field: The present invention relates to a heat exchanger, a refractory material and a production method thereof, in particular to a ceramic heat exchanger, a ceramic material and a production method thereof. 2. Background technology: [0002] The production and use of new high-efficiency and energy-saving ceramic heat exchangers that can meet the needs of various kilns has not yet been found, and the production technology of ceramic heat exchangers still remains at the development status of more than ten years ago. For example: (1) use high-alumina clinker and composite clay as raw materials to produce seamless integral structure tube-and-disc ceramic heat exchange tubes through the steps of kneading, molding, drying, and sintering; (2) use raw and cooked coke gemstones, soft Based on local raw materials such as high-quality clay, water-soluble organic polymers are used as binders, and cordierite-based high-temperature ceramic heat exchangers are artificiall...

Claims

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Application Information

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IPC IPC(8): C04B35/18C04B35/185C04B35/195C04B35/622
Inventor 翟延军
Owner 翟延军
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