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Wear resistant heat preserving ceramic composite material

A technology of composite materials and thermal insulation ceramics, applied in the field of materials, can solve the problems of reduced service life of equipment or pipelines, increased workload of maintenance workers, increased frequency of thermal insulation maintenance, etc., to achieve superior thermal insulation performance, good salt and alkali resistance, and extended use The effect of longevity

Inactive Publication Date: 2011-06-08
陈永祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: pulverized coal transportation, combustion pipelines, tertiary air ducts in the cement industry, high-temperature air ducts and high-humidity air ducts, heat exchangers and humidification towers, and cement kiln shells, which are difficult to keep warm, and dew condensation in dust collectors and other equipment, due to High coal consumption in the dryer, large temperature difference in the calcined section in the kiln, high coal consumption, and unstable clinker quality
The internal materials of the above equipment and pipelines are severely eroded and worn, and the temperature difference between inside and outside is large. The outer walls of some equipment and pipelines have to be thickened with external insulation materials such as glass fiber or asbestos boards, which not only increases the production cost of the enterprise, but also pollutes the environment.
A large number of equipment or pipelines will be strongly scoured by various media during use. This kind of impact and wear in use will reduce the service life of equipment or pipelines, resulting in an increase in the frequency of equipment shutdown, disassembly, and external insulation maintenance, which will not only reduce equipment efficiency. , energy consumption increases, production costs rise, and the workload of maintenance workers will also increase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] According to the weight ratio, 700g of electric ironed brown corundum with a particle size of 1-5mm, 170g of chromium oxide, 40g of limestone, 20g of silicon dioxide, 20g of high alumina clay, 900g of silicate, 0.5g of pearl rock powder, 3g of magnesium oxide, and quartz sand 25g, 15g of titanium oxide, 30g of dolomite, 10g of attapulgite, 20g of PA-805 high-temperature binder, 8g of composite reinforcing agent, 0.5g of feldspar, and 15g of short carbon fiber.

[0011] Put the above materials into a strong mixer and stir for 10 minutes. After mixing evenly, weigh and pack into bags.

[0012] When the composite material (finished product) of the present invention is delivered to the construction site for use, at first the surface of the construction equipment is derusted and degreased, and after being cleaned up with a high-pressure air pump, sandblasting is done to make the metal surface of the construction equipment uneven; according to the equipment Temperature (200°C...

Embodiment 2

[0014] According to the weight ratio, 900g of electric iron sub-white corundum with a particle size of 1-5mm, 60g of chromium oxide, 30g of limestone, 40g of silicon dioxide, 35g of high alumina clay, 750g of silicate or calcium aluminate cement, 2.5g of pearl rock powder, Magnesium oxide 0.1g, quartz sand 0.8g, titanium oxide 30g, dolomite 10g, attapulgite 30g, PA-805 high temperature binder 50g, composite reinforcing agent 0.3g, feldspar 15g, short carbon fiber 30g.

[0015] Put the above materials into a strong mixer and stir for 10 minutes. After mixing evenly, weigh and pack into bags.

Embodiment 3

[0017] According to the weight ratio, 1000g of electric ironed white corundum with a particle size of 1-5mm, 150g of chromium oxide, 50g of limestone, 10g of silicon dioxide, 70g of high alumina clay, 850g of calcium aluminate cement, 8g of pearl rock powder, 15g of magnesium oxide, and quartz sand 10g, titanium oxide 50g, dolomite 20g, attapulgite 40g, PA-805 high temperature binder 80g, composite reinforcing agent 5g, feldspar 7.5g, short carbon fiber 22g.

[0018] Put the above materials into a strong mixer and stir for 10 minutes. After mixing evenly, weigh and pack into bags.

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Abstract

The invention relates to a wear-resistant heat preservation ceramic composite material which belongs to the field of materials and comprises primary materials and auxiliary materials according to weight percentage. The primary materials comprise corundum, chromic oxide, limestone, silicon dioxide, high alumina clay, silicate or calcium aluminate cement; the auxiliary materials comprise perlite powder, magnesia, quartz sand component, titanium oxide, dolomite, attapulgite, high temperature caking agent, composite strengthening agent, feldspar, and short carbon fiber component. The wear-resistant heat preservation ceramic composite material has the advantages of high intensity, being suitable for the strong eroding of various mediums, strong adhesive attraction, as well as excellent wear resistance and heat preservation performance. The wear-resistant heat preservation ceramic composite material has small coefficient of heat conduction, high melting point, and low linear expansibility. The integral performance is stable; the acid resistance, the alkali resistance and the erosion-proof capacity are strong; the density is small; a seamless integral wear-resistant heat preservation layer is formed after solidifying; the performance is extremely excellent; moreover, the wear-resistant heat preservation ceramic composite material is not easy to fall off, can effectively prolong the service lives of devices and pipelines, is convenient to be constructed, is used inside the pipelines, has the double effects of wear resistance and heat preservation, greatly reduces the production cost of enterprises, and improves the economic benefits thereof.

Description

1. Technical field [0001] The invention relates to a wear-resistant and heat-preserving ceramic composite material, which belongs to the field of materials. 2. Background technology [0002] At present, in cement, steel, thermal power, petrochemical metallurgy, mining coal and other heavy industries, there are a large number of high-temperature hot air pipelines, equipment and pipelines for washing dust materials. For example: pulverized coal transportation, combustion pipelines, tertiary air ducts in the cement industry, high-temperature air ducts and high-humidity air ducts, heat exchangers and humidification towers, and cement kiln shells, which are difficult to keep warm, and dew condensation in dust collectors and other equipment, due to The coal consumption of the dryer is high, the temperature difference of the calcination section in the kiln is large, the coal consumption is high, and the quality of the clinker is unstable. The internal materials of the above equipm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B14/06C04B14/10C04B28/04C04B14/18C04B28/06C04B14/28
Inventor 陈永祥
Owner 陈永祥
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