First, the building materials industry USES refractory materials in five directions from product innovation:
1. Low thermal conductivity type refractory
(1) Light weight: design material structure to achieve light quantization under the functional precondition of ensuring the necessary alkali resistance;
(2) Microporous technology: the study of microstructure and performance control technology;
(3) Multi-layer composite technology: research on the stability and control technology of the whole life heat matching of composite interface of composite refractory materials.
The main products include: light alkali resistance casting, low thermal conductivity anti-stripping brick, multi-layer composite silicon mo brick, multi-layer composite mullite brick, high strength low guide magnesia aluminum spinel brick, etc.
2. Environmentally friendly refractories
Chromification - solving chromium pollution problem. For the high temperature belt of cement rotary kiln, the main research is to study the skin quality of refractory, the softening temperature of the load and the thermal shock resistance. The cement kiln has been made without chromium in the kiln.
There are mainly: magnesia - iron aluminum spinel brick, magnesium-iron aluminum composite spinel brick, magnesium-calcium zirconium brick, magnesium-alumina spinel brick, etc.
3. Long life refractory material
Broad scope; Kiln mouth and coal injection pipe: it is one of the most critical parts of the cement kiln sintering system and the weak link in the use of refractory materials.
There are mainly: tough-type castings, low-heat resistant and abrasion-resistant castings, anti-bursting castings, high-strength fast and hard explosion-proof anti-corrosive castings, self-flow refractory castings, etc.
4. Coordinated disposal of refractory materials for cement kilns
The cement kilns have obvious energy saving and environmental advantages, and the coordinated disposal of cement kiln is the future development direction. The content of alkali chloride in the kiln was obviously increased, which caused the damage to the kiln and the material of the kiln. The research focuses on the anti-erosion resistance, anti - atmosphere volatility and anti - skin resistance.
The main products are: high purity magnesium aluminum spinel brick, sintered magnesium alumina spinel brick, magnesium-calcium zirconium brick and new-type magnesium-iron aluminum composite spinel, etc. It is used for the new type of anti-crust pouring material for the smoke chamber and the decomposing furnace.
5. Reclaimed and reused after use of refractory materials
After use, it is also a secondary resource, from the perspective of resources and environmental protection. The annual overhaul of cement kilns produces a large amount of waste residuum, and the developed countries in foreign countries use more than 60% of the materials used in the future, and we only have about 20%.
Research emphasis: fully research, key research regeneration treatment and the special production equipment, the formation of efficient utilization, and research on the application of recycled materials and further form the economic and reasonable application solutions.
Thirdly, the building materials industry USES the four directions of the process innovation of refractory materials:
1. The preparation process of high energy efficiency of refractory materials: the preparation of refractory materials will be transformed from high energy consumption to high energy efficiency.
(1) Refractory materials have always been regarded as high energy consumption industries, and reducing the consumption of burned and waste heat will be the direction of research.
(2) Environmental standards will become more and more strict: NOx, SO2 and dust emission will be strictly controlled, and desulfurization and denitration will become inevitable trend.
(3) The automation of the production process will be greatly improved;
(4) The amorphous gravity will also be further enhanced to promote energy conservation.
2. Spraying technology: dry and wet spraying techniques are more advanced
In the construction, no mould support is required, the construction speed is fast, the efficiency is high, applicable to the cement kiln door hood, grate cooler, preheater, three times air pipe and waste heat boiler etc.
3. Pumping technology: the ground pump can guarantee the artificial safety, the mechanical pump can achieve the effect of artificial saving force, the pump delivers fast energy saving time, and the addition of water can improve the quality. It is suitable for kiln door hood, grate cooler, predecomposed kiln cone, and three air duct parts.
4. Prefabrication: the design of the amorphous refractory material is the integration innovation of refractory material products and construction process. The characteristics are: quality advance control, high construction efficiency, good environment adaptability and high performance; effectively solve problems that are hard to bake, easy to crack, and not easy to construct in parts; the influence of environmental and human factors on the quality of refractory materials is fundamentally solved. Suitable for cement kiln preheater, decomposing furnace, kiln mouth, spraying coal pipe, kiln door hood, grate cooler, three times air duct, valve, etc.
Service innovation
1. Product manufacturing: production service transformation;
2. Product service development: "one-stop" service in the whole value chain;
3, from market research, project design, product development, production quality, site construction, technical services, product promotion and so on various aspects to control, with personalized, intensive, fast response of the overall systematic service solutions to the cement enterprises, through the depth of the customer exchanges and cooperation, give full play to the technological advantages, the products in a whole life cycle management and system maintenance, to effective refractory product use effect, long life, promote refractories used in synchronization, improve kiln operation rate, create value for customers, realize the win-win cooperation with the customers.
4. General contracting service of tons of clinker: the one-stop service of all-value chain resistance. Tons of clinker is the total contracting refractories for the cement enterprise to provide refractory material supply, construction, maintenance and other professional services to the system, the two sides set production price per ton of clinker of refractory materials, and settlement according to the actual production cement clinker, and can effectively reduce the customer's existing refractory material maintenance costs by 10% to 30%