China Hunan Yibeinuo New Material Co., Ltd. Company Cases

The elbows of the pulverized coal transportation pipelines of thermal power plants are particularly worn and have long been the key parts of power plant maintenance. The service life of the pipelines is directly related to the operating costs and economic benefits of the entire power plant. From the wear resistance, high temperature resistance and corrosion resistance of the pipeline Considering the convenience of function and construction, the application of wear-resistant ceramics in pipes can fundamentally solve this problem.   The wear-resistant ceramic sheet uses AL2O3 as the main raw material and is a special corundum ceramic produced by calcining at a high temperature of 1700 Baidu. Its Rockwell hardness is HRA80-90, the hardness is second only to diamond, which can greatly extend the service life of the elbow of the pulverized coal pipe.   The wear-resistant ceramic commonly used in the wear-resistant elbow of the pulverized coal pipeline adopts the welding process with a hole in the middle, and is equipped with a steel bowl and a porcelain cap. The construction of this wear-resistant ceramic sheet is also more convenient. The ceramic sheet is directly welded to the steel body, and the overall appearance is all ceramic surfaces. This further strengthens the firmness of the ceramic sheet pasted on the pulverized coal pipe. The advantage of this type of ceramic patch is that it is easy to repair and maintain. Even if the pipeline is worn during operation, it can be directly repaired, saving manpower and material resources.   Wear-resistant ceramic sheets are used in various industrial wear environments, such as wear-resistant and anti-corrosion of fan impellers and casings. Wear-resistant ceramic sheets are also often used to compound wear-resistant pipe elbows with various metal materials. The wear-resistant ceramic sheet can also be used in the wear-resistant and wear-resistant of various types of water pumps, slurry pumps, circulating water pumps, impellers and various overcurrent components.

Wear-resistant pipe of polymer material: Materials based on polymer compounds. Including rubber, plastics, fibers, coatings, and adhesives. Rubber is a kind of linear flexible polymer. The polymer fibers are divided into natural fibers and chemical fibers. Plastics are mainly composed of synthetic resins or chemically modified natural polymers. Main features: low strength, high plasticity and toughness.   Wear-resistant pipes of inorganic non-metallic materials: Inorganic non-metallic materials are materials composed of oxides, carbides, nitrides, halogen compounds, borides and silicates, aluminates, phosphates, borates and other substances of certain elements. Glass, ceramics, abrasives (silicon carbide, alumina), cast stone (diabase, basalt, etc.), carbon materials, non-metallic minerals (asbestos, mica, marble, etc.). Main features: high strength, low plasticity and toughness.   Wear-resistant pipe of metal material: A general term for metallic elements or materials with metallic properties mainly composed of metallic elements. Including pure metals, alloys, intermetallic compounds and special metal materials, etc. Metal materials are usually divided into ferrous metals, non-ferrous metals and special metal materials. Main features:According to different metal performance indicators, the strength, plasticity and low toughness are also different.   Wear-resistant pipe of composite material: The composite material is a material composed of one material as the matrix and another material as the reinforcement. Various materials complement each other in performance, resulting in a synergistic effect, so that the comprehensive performance of the composite material is superior to the original composition material and meets the requirements of each material. different requirements. Main features:According to the different performance indicators of composite materials, the matching strength is also different from low plasticity and low toughness.

Alumina ceramic coatings include alumina coating, alumina-titanium oxide coating, and nano-alumina coating. The layer transitions to a multi-layer or gradient gradient layer.   Alumina ceramics is a ceramic material with alumina (Al2O3) as the main body, which is used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength, and high-temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics is a kind of ceramics with a wide range of uses. Because of its superior performance, it has been widely used in modern society to meet the needs of daily use and performance.   Alumina ceramics is a ceramic material with (Al2O3) as the main body, which is used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength, and high-temperature resistance. Silicon nitride ceramics are inorganic materials that do not shrink during sintering. Silicon nitride is very strong, especially hot-pressed silicon nitride, which is one of the hardest substances. Compared with alumina ceramics, zirconia ceramics are more wear-resistant. The reason is that the sintering temperature of zirconia ceramics is higher. The density is twice as high as that of alumina ceramics.   Alumina ceramics is a ceramic material with alumina (Al2O3) as the main body, which is used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength, and high-temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics is a kind of ceramics with a wide range of uses. Because of its superior performance, it has been widely used in modern society and meets the needs of daily use and performance.   Alumina ceramics are divided into two types: high-purity type and ordinary type.   High-purity alumina ceramics are ceramic materials with an Al2O3 content of more than 99.9%. Because their sintering temperature is as high as 1650-1990 ° C and the transmission wavelength is 1-6 μm, they are generally made of molten glass to replace platinum crucibles; It is resistant to alkali metal corrosion and can be used as a sodium lamp; in the electronics industry, it can be used as an integrated circuit substrate and a high-frequency insulating material.   Ordinary alumina ceramics are divided into 99 porcelain, 95 porcelain, 90 porcelain, 85 porcelain, and other varieties according to the content of Al2O3. Sometimes those with Al2O3 content of 80% or 75% are also classified as ordinary alumina ceramic series. Among them, 99 alumina ceramic materials are used to make high-temperature crucibles, refractory furnace tubes, and special materials, such as ceramic bearings, ceramic seals, and water valve plates; 95 alumina ceramics are mainly used for corrosion resistance and components; 85 ceramics are often mixed with Part of talc is added to improve electrical properties and mechanical strength. It can be sealed with metals such as molybdenum, niobium, and tantalum, and some are used as electrical vacuum devices.   Forming methods of alumina ceramic products include dry pressing, grouting, extrusion, cold isostatic pressing, injection, casting, hot pressing, and hot isostatic pressing. In recent years, pressure filtration molding, direct solidification injection molding, gel injection molding, centrifugal grouting, and solid-free molding have been developed at home and abroad. Products with different product shapes, sizes, complex shapes, and precision require different molding methods.  

1. Low energy consumption. The physical density of rubber is one-sixth that of manganese steel, which reduces the quality of the barrel, thereby reducing the load on the motor, saving electricity, and reducing the cost; 2. High wear resistance and impact resistance The rubber liner adopts a special formula and undergoes high-pressure vulcanization treatment. The wear resistance is greatly improved. The service life is about 1.5-2 times that of the manganese steel liner. The unique elastic buffer of the rubber itself greatly reduces the fierce impact; 3. Low noise The collision of steel and rubber itself reduces the noise, and the rubber itself has a sound insulation effect, which stimulates the enthusiasm of employees to a certain extent, and indirectly improves the production efficiency of the enterprise; 4. Easy to install The rubber lining is light in weight and does not require special tools for installation. It is more convenient greatly reduces downtime and improves the operational efficiency of the enterprise. 5. Corrosion resistance Manganese steel reacts with acid, alkali, salt, etc., which can accelerate the wear of the liner. The rubber liner itself has a special process formula and is corrosion-resistant, thus prolonging the service life of the liner. 6. Save steel balls Actual work estimates that compared with manganese steel liners, the annual output of 100,000 tons of mines and rubber liners can save 150,000 tons of steel balls.  

Pneumatic ash conveying pipelines in thermal power plants are seriously worn, resulting in fly ash everywhere, which not only affects production but also causes great pollution to the environment. In the past, we generally used this to reduce the air pressure during soot blowing. This reduces wear and saves energy. Although this method can prolong the life of the ash conveying pipeline a little, it cannot fundamentally solve the wear and tear problem.   Pneumatic ash removal pipelines are seriously worn. Generally, there is a problem with the material selected for the pipeline. Wear-resistant materials are required. It is recommended to use wear-resistant ceramic elbows. The wear-resistant ceramic elbow is manufactured with high-tech production technology. The wear-resistant ceramic elbow comprises three layers of corundum ceramic, a transition layer, and steel from the inside to the outside. The ceramic layer is formed at a high temperature above 2200 ℃. , form a firm bond with the steel pipe through the transition layer.   The wear-resistant ceramic elbow produced by our company has a lifespan of dozens of times that of ordinary elbows. It has good wear resistance, heat resistance, corrosion resistance, mechanical and thermal shock resistance, and good weldability. It is an ideal wear-resistant and corrosion-resistant pipeline such as material, grinding and corrosive media, which is not easy to age and fall off.   Due to the wear-resistant, corrosion-resistant, and heat-resistant properties of wear-resistant ceramic elbows, they can be widely used in electric power, metallurgy, mining, coal, chemical, and other industries to transport sand, stone, pulverized coal, ash, aluminum liquid, etc. It is an ideal anti-corrosion elbow.  

The performance characteristics of wear-resistant ceramic tube:   1. Super wear resistance, its hardness is second only to diamond, and its service life is 20 times that of ordinary carbon steel pipes.   2. Never fall off, the high-reliability gasket between the plug-in connections, the glue will not fall off when it ages, and at the same time control the height difference to reduce the risk of leakage.   3. Good integrity, smooth inner wall, smooth airflow, less wear; small pressure loss, and high conveying efficiency.   4. There is no linear gap between the bushing and the viscose filling layer, and the acid and alkali resistance is good.   5. Iron isolation, improve the quality of ceramic lining, reduce pipe wear, and solve the problem of iron impurities in powder caused by steel pipe wear.   Application of wear-resistant ceramic tube:   1. Application of wear-resistant ceramic pipes in the metallurgical power industry: Metallurgy and power industries need to consume a lot of metal pipes to transport coal powder, ash, mud, and lime gypsum slurry, etc. The use of ceramic composite pipes to replace different pipes has high wear resistance, long service life, convenient installation, and significant economic benefits.   2. Application of wear-resistant ceramic pipes in mining and coal industries: (1) Mine: Mine filling, concentrate and tailings pipelines are seriously worn.   (2) Coal: Coal preparation and long-distance pipeline transportation generally adopt wet transportation. The delivery pipe is required to be both wear-resistant and corrosion-resistant. The pipe can be used as a long-life delivery pipe with considerable economic benefits.  

Wear-resistant pipes are mainly used for material conveying pipes such as pneumatic and pumping slurry. Transmission has spread all over the electric power, metallurgy, coal, petroleum, chemical, building materials, machinery, and other industries, and is developing at a high speed. Wear-resistant pipes are widely used in coal-fired thermal power plants for powder feeding, slag removal, ash transport, filling materials, ore concentrate, and tailings transportation systems that are severely worn.   Wear-resistant pipe materials are classified as follows: Rare earth wear-resistant alloy tube: the material is rare earth wear-resistant alloy steel; Bimetal wear-resistant composite pipe: the material is 20#+ high chromium alloy; Tortoiseshell high temperature wear-resistant composite pipe: the material is 20#+ corundum high wear-resistant lining material; Wear-resistant ceramic patch tube material: 20#+ aluminum oxide patch or silicon carbide; Sintered ceramic tube material: 20#+ aluminum oxide; Steel rubber wear-resistant pipe material: 20#+ wear-resistant rubber; Steel-plastic wear-resistant pipe material: 20#+ PTFE or polypropylene; UHMWPE composite pipe material: 20#+UHMWPE; Wear-resistant cast stone pipe material: 20#+ cast stone, etc.   Wear-resistant ceramic tube performance: Wear-resistant ceramic composite pipes quickly occupy the market, in addition to high quality and good performance, but also because their cost performance is higher than other wear-resistant, corrosion-resistant, and heat-resistant pipes. In terms of wear-resistant pipes of the same specification and unit length, the weight of wear-resistant ceramic composite pipes is only half of that of wear-resistant alloy cast steel pipes, and the project cost per meter is reduced by 20%-30%; only one-third of the weight of cast stone pipes First, reduce the project cost by 5%-10% per meter; the cost performance is more outstanding, in contrast, everyone is more willing to choose alumina ceramic lined pipes.

Abrasion-resistant pipes are widely used in various industries. Among them, in the new energy lithium battery industry, stainless steel ceramic elbows or straight pipes are often used. According to the different working conditions and environments of the product, the curvature radius of the elbow, the length of the pipe, the thickness of the ceramic material, and the size of the steel pipe are also different. Each design is very important. The role of pipes.   In the ceramic wear-resistant elbow used in the powder feeding pipeline of the power plant boiler, the curvature radius of the elbow is determined according to the requirements of the drawings, generally 6-10 times the curvature. To effectively alleviate the wear degree of the pipeline, the design curvature should be used as much as possible. An elbow with a larger radius has a longer service life.   When the tailings slurry is transported in the mining industry, the radius of curvature of the wear-resistant elbow is generally between 2D and 5D, which can achieve better results.   When transporting pulverized coal pipelines in cement and coal lines, Abrasive elbows are often used with a radius of 10D-15D, which can ensure the smooth transportation of the powdered materials. In this way, the wear and tear on the pipelines will be higher. Small.   Therefore, it is very necessary to design reasonable wear-resistant ceramic elbows for different working conditions. Reasonable design can maximize the wear resistance of ceramics. Increase the service life of pipes.  

The pipeline is a standard delivery system equipment used to transport various raw materials and substances, which is equivalent to blood vessels in industrial production. However, due to the flow and friction of materials and the importance of the pipe, the pipe wall may be damaged, so there is a need for a long-lasting wear-resistant pipe. Different types of wear-resistant pipes have different materials and different applications. Abrasion-resistant piping materials fall into the following categories: 1. The main material components of metal wear-resistant pipes are generally wear-resistant steel, alloy materials, surfacing materials, etc., which can be used in various complicated industrial and mining industries such as continuous high-temperature coal ash pipes, tailings pond backfill soil mines, and coal preparation plant pipes. enterprise. Its stability is good, but its main disadvantages are relatively high cost and net weight. 2. The main component material of wear-resistant ceramic pipes is silicon carbide or aluminum oxide, which can be used in high-quality transportation systems such as lithium batteries and silicon slag. It can also be used in working conditions with greater impact and wear. Wear-resistant ceramic pipes have good wear resistance, corrosion resistance, high temperature, and low-temperature resistance, are lightweight, and are currently widely used wear-resistant pipes. 3. High-molecular polyethylene wear-resistant pipes are mainly used for cement mortar transportation. It has the advantages of low cost, smooth inner wall, and good corrosion resistance, but it is not heat-resistant and cannot transport coarse particles or dry materials. Different wear-resistant pipes can be used in different working conditions and have different effects. You can choose suitable wear-resistant products according to different working conditions.  

Wear-resistant ceramic liners have solved the problem of anti-wear for many heavy-wear fields such as steel mills, power plants, and cement plants, protected equipment, reduced maintenance costs, and to a certain extent can save time, improve efficiency, and even improve product quality. However, many heavy-wear areas are also accompanied by high-temperature conditions. Under such conditions, the ordinary wear-resistant ceramic installation method will become very unstable and prone to porcelain falling off. The wear-resistant ceramic liner with a dovetail slot solves the problems of wear and impact in high-temperature environments, it can run stably at a high temperature of 750°C through practical tests.   What is dovetail alumina ceramics? Dovetail wear-resistant ceramics for card slots are a special shape of ceramics, that can be fixed to the equipment by mechanical force without the use of ceramic glue, stud welding, and other installation methods.   How to install dovetail wear-resistant ceramics? When installing, first weld a dovetail guide rail on the wear area of the equipment, and then interlock the dovetail wear-resistant ceramic slot with the guide rail to form a mechanical self-locking force to complete the installation.   What are the advantages of a dovetail ceramic lining board? 1. High-temperature resistance, stable operation without falling off: the wear-resistant ceramics of the dovetail card slot are installed and fixed by mechanical force, will not be affected by high temperature, and can run smoothly even at high temperatures of seven to eight hundred degrees. 2. Wear resistance: The wear-resistant ceramics of the dovetail card slot only change the shape of the ceramics, and the high hardness and wear-resistant properties of the ceramics themselves have not changed, and the wear-resistant effect is excellent. 3. Impact resistance: Due to its special shape, the wear-resistant ceramics of the dovetail card slot are often thicker, so they have strong impact resistance.   What fields are wear-resistant ceramic liners for dovetail slots suitable for? The production process of dovetail ceramics is relatively complicated and the cost is high, so it is rarely used in ordinary occasions, and most of them are used in high-temperature conditions, such as thermal power plants and steel plants.