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

Coal preparation is an important process in the comprehensive utilization of coal mine resources. Many metal and non-metal parts in coal preparation equipment will suffer strong wear and quickly fail due to continuous work, resulting in a large amount of human and financial consumption, and at the same time they are unable to Meet the continuous production needs of coal preparation plants. The serious wear and tear of coal preparation equipment and the low service life have become a serious obstacle to the development of coal preparation plants. Therefore, given the unique working conditions of coal preparation equipment, it is of great significance to reasonably research and develop new wear-resistant materials to extend the service life of coal preparation equipment.    Wear-resistant ceramic sheets are an important technical means to improve the reliability of various equipment in coal preparation plants. Among the traditional wear-resistant materials, ceramic materials have become the most common and important type of materials in human life due to their wide sources and superior material properties. They are characterized by high hardness, wear resistance, and corrosion resistance. The wear-resistant ceramic sheet with alumina as the main component has become the most widely used material for its simple process, low processing cost, and good wear resistance. At present, it has been widely used in metallurgy, mining, and chemical industries.   At present, wear-resistant ceramic sheets are widely used in cyclones, chutes, and pipelines in coal preparation plants. The wear resistance of wear-resistant ceramic sheets mainly depends on three aspects, namely, formula, raw material powder and sintering process. From the perspective of the development status of wear-resistant materials and the needs of the coal preparation market, expensive materials such as silicon carbide cannot be used in the coal preparation field on a large scale. Reasonable cost performance of materials, alumina wear-resistant ceramics will be the key research direction of wear-resistant materials.

As the scale of gold mines and beneficiation equipment have begun to become larger, the particle size of the selected raw ore slurry and the inlet pressure and speed of the heavy medium suspension have continued to increase, which has seriously affected the service life of the cyclone. To solve the abrasion resistance problem of the cyclone and increase the service life of the cyclone, the lining of the cyclone was started to improve its wear resistance.   The arc-shaped alumina wear-resistant ceramic liner used in the cyclone has the characteristics of wear resistance, corrosion resistance, high-temperature resistance, impact resistance, and convenient construction. The arc-shaped alumina wear-resistant ceramic liner used for the cyclone has a certain arc, and the arc-shaped liner of various specifications can be customized according to the specific size of the cyclone. It has the characteristics of wear resistance, corrosion resistance, high-temperature resistance, impact resistance, and convenient construction. It is a material for electric power, metallurgy, coal, petroleum, cement, chemical industry, machinery, and other industries (ash slag, coal powder, slag powder, tailings, etc.) Ideal material for wear-resistant surfaces of conveying equipment.   It is very safe and reliable to use arc alumina wear-resistant ceramic liner under high-temperature corrosion, high-temperature wear, or high-temperature corrosion. Under the same industrial and mining conditions, its service life is cast stone, wear-resistant alloy cast steel, steel plastic, and steel rubber Ten times to twenty times as much as the material.   The arc-shaped alumina wear-resistant ceramic liner for the cyclone is fired in a tunnel kiln. The kiln temperature is stable. The fired ceramic liner has a uniform color, a jade texture, and a neat surface without black spots. After years of accumulation, the arc-shaped alumina wear-resistant ceramic liner for cyclones has a certain arc, which is mainly used for cyclones. Various specifications of arc-shaped liners can also be customized according to the specific pipe diameter to make it fit the pipeline perfectly. Inner wall.  

To solve the contradiction between the supply and demand of the sintered ore tank and the problem of the wear and sticky material of the liner, the wear-resistant ceramic liner was selected. The relevant production practice shows that its installation and use are successful. The wear-resistant ceramic liner was installed in the mining tank. After a year and a half of operation, the inspection was carried out, and it was found that the phenomenon of sticky materials that had plagued the production had disappeared. As long as the production is not stopped for maintenance, there is generally no hanging phenomenon. It also reduces the number of cleaning tanks every month, reduces labor intensity, and extends the use time of the wear-resistant ceramic liner. After the equipment is replaced, the liner rarely falls off, and the wear-resistant ceramic is also kept in good condition. Yes, there will be no sticky material, and it is estimated that the use of the equipment can last three to four years.   From the perspective of economic benefits, the use of wear-resistant ceramic liners can greatly reduce the downtime caused by equipment failure or the downtime during material cleaning and can produce a lot of sinter every year. It can reduce the labor intensity of the staff, reduce maintenance work, longer use time, reduce the frequency of component replacement, ensure the continuity of equipment work, and undoubtedly bring high economic benefits.   Through the above practical use, it is proved that the structure of the wear-resistant ceramic liner in the sintered ore tank is relatively simple, and there will be no sticking phenomenon, not to mention the excellent wear resistance, which can allow the equipment to be used for a long time. In addition, the lining board is directly bonded to the mining tank with an organic binder, which can avoid equipment corrosion and extend the use of the mining tank. Compared with the wear-resistant ceramic lining board and the alloy lining board, the cost performance will be higher. It is an enterprise that produces a high-quality choice.

Wear-resistant ceramic pipes use steel pipes as external supports and are lined with ceramics to withstand impact and wear. Therefore, the performance and advantages of wear-resistant ceramic pipes mainly come from the performance characteristics of ceramic linings. So what are the advantages and disadvantages of wear-resistant ceramic pipes?   Advantages of wear-resistant ceramic tubes 1. Good wear resistance: The lining ceramic layer of the wear-resistant ceramic pipeline is wear-resistant ceramics with a hardness (HRA) of 88-90. The wear resistance is more than ten times that of high-chromium wear-resistant cast iron alloy pipe fittings.   2.Corrosion resistance: Alumina ceramic plates have excellent corrosion resistance to different corrosive media.   3. Wear-resistant ceramic tube: α-type aluminum oxide ceramics, acid resistance 97-99%; alumina is a neutral oxide, under the long-term influence of natural environment such as oxygen and oxygen, performance aging will not occur problem. It can be determined that the corrosion resistance of the wear-resistant tube is ten times that of stainless steel.   4. Low engineering cost: wear-resistant ceramic pipes are mainly used for material conveying, pneumatic conveying and corrosive media with particles. They are used to replace expensive stainless steel pipes, high-chromium cast steel pipes and hard alloy wear-resistant pipes. Can directly reduce engineering costs.     Disadvantages of wear-resistant ceramic tubes 1. Not resistant to high temperature: Since the wear-resistant ceramic tube is pasted on the ceramic plate by glue, the temperature of the glue is generally about 200 ℃, too high will easily cause the phenomenon of falling off, and shorten the use time.   2. Cannot cut at will: The ceramic patch wear-resistant tube cannot be cut at will. The main reason is that the wear-resistant ceramic tube is a combination of steel pipe and ceramic sheet, which will cause the ceramic sheet to fall off.  

There are many types of wear-resistant pipes on the market, with different performances and different application ranges. Today we understand the difference between wear-resistant ceramic pipes and ordinary pipes.   First of all, compared with ordinary pipes, wear-resistant ceramic pipes are inherently corundum ceramics, and their life can be extended the most during use, generally ten times or even dozens of times that of ordinary steel pipes. Many people are listening After that, there will be signs, then the cost of using this kind of pipeline will be very low. Of course, because its service life is longer, so we can get the maximum savings in the economic cost that we are most concerned about.   Secondly, because the inherent alumina ceramic is not afraid of high temperatures, it can have a certain degree of heat resistance during use, so it has more space and ductility for the working environment of the equipment and the nature of the work.   Finally, the wear-resistant ceramic pipes produced by Ibeno are mainly ceramic-lined elbows, straight pipes, and tee-lined wear-resistant ceramics. The steel parts are made of integral hot-bent seamless steel pipes, which are better than the piping technology of the shrimp joints. The service life is longer, and there is no need to worry about any problems in the process of use. Because of the various advantages of wear-resistant ceramic pipes, many factories and companies will prefer this product, and we use it After this kind of pipeline, the greatest savings can be achieved in terms of engineering cost.

During the long-term operation of the belt conveyor, problems such as normal or unexpected wear and aging will occur, leading to failures and directly affecting the normal operation of production.   Roller encapsulation is used to increase the friction coefficient between the conveyor belt and the surface of the roller during transmission, reduce the mutual wear between the conveyor belt and the surface of the roller, improve the traction of the operation, and extend the service life of the conveyor belt and the roller. The rubber on the surface of the drum can effectively improve the operation of the conveyor system, prevent the conveyor belt from slipping, and make the drum and the belt run synchronously, thus ensuring the belt's efficient and large-volume operation.   The drum encapsulation can also effectively prevent the sliding friction between the drum and the belt, reduce the material adhesion on the surface of the drum, and reduce the deviation and wear of the belt. Roller ceramic encapsulation is the use of advanced thermal vulcanization technology to vulcanize wear-resistant ceramic blocks with particles on the surface in a special rubber according to a certain layout. The bottom layer of the rubber sheet is a CN layer, and then a special adhesive is used to paste it on the surface of the roller instead. Traditional rubber can enhance the friction coefficient between the belt and the drum and increase the service life of the drum. At the same time, the regularly distributed ceramic grooves are convenient for draining mud, ensuring normal operation in harsh environments, and increasing the friction coefficient of the roller surface, reducing the probability of slippage of the conveyor belt. The life of ceramic encapsulation is 5-10 times longer than that of ordinary encapsulation, which reduces the trouble of maintenance and improves the operating efficiency of the enterprise.   The thickness of the roller ceramic encapsulation is 12mm, 15mm, 16mm, 20mm, and the length is 1200mm, 1400mm, 1600mm, 1800mm, 2000mm. It can be installed on-site. The roller does not need to be disassembled, convenient and fast. It is suitable for rollers of various specifications and extreme harshness. Roller in the working environment.  

Types of wear-resistant ceramic composite pipes: Direct adhesive ceramic composite pipe: Direct adhesive ceramic composite pipe uses high temperature resistant strong adhesive to paste alumina ceramic sheet on the inner wall of the pipe, and forms a firm anti-wear layer after being heated and solidified. The production process of this kind of product is relatively simple, the production cycle is short, and the cost is relatively low. Hunan Ibeinuo New Material Co., Ltd. produces various types of patch wear-resistant ceramic pipes, which can also be customized according to customer needs. Direct adhesive ceramic composite pipes are not limited by pipe size, ranging from 1 inch to 120 inches in diameter, and even larger sizes can also be customized.   Spot-welded clip-on wear-resistant ceramic pipes: spot-welded clip-on wear-resistant ceramic pipes are made by using high temperature resistant strong adhesive to paste an alumina ceramic sheet with a hole in the middle on the inner wall of the pipe. At the same time, the ceramic is firmly welded to the inner wall of the steel pipe. To protect the solder joints, a ceramic cap is screwed on. Each piece of porcelain is not only pressed and inserted into each other, but each piece of porcelain forms a trapezoidal angle so that the tiles are tightly connected and there is no gap; when the last piece of a circle is tightly embedded, a 360° mechanical freedom is formed between the tiles. Locking force (this technique was used in Chinese bridge construction projects centuries ago). The production process of this kind of product is relatively complicated, the production cycle is long, and the cost is high.   One-piece wear-resistant ceramic pipe: The full name of one-piece wear-resistant ceramic pipe is ceramic-lined composite steel pipe, which is assembled by pouring the ceramic pipe fittings into the steel pipe with special fillers after firing them as a whole. The pipeline has a smooth inner wall, good sealing performance, and good wear resistance and corrosion resistance. However, this kind of product has a long production cycle and high cost.   Sintered ceramic composite pipe: Centrifugal casting composite ceramic pipe is also called sintered ceramic composite wear-resistant pipe. It is a composite pipe manufactured by "self-spreading high-temperature synthesis-high-speed centrifugal technology", which forms a uniform, dense, and smooth surface ceramic at high temperature and high-speed Layer and transition layer. Because the production process is simple and the cost is low, it is suitable for long-distance transportation of powder, but its wear resistance is slightly worse than that of conventional wear-resistant ceramic pipes. It is generally used as a straight pipe.   Summary: The composite pipe has good comprehensive properties such as wear resistance, heat resistance, corrosion resistance, mechanical shock resistance and thermal shock resistance, and good weldability. It is an ideal wear resistance and corrosion resistance for conveying granular materials, grinding, corrosive and other media Pipelines can be widely used in electric power, metallurgy, mining, coal, chemical and other industries.  

The ceramic liner is a material with alumina as the main body, with a unique design and a good buffer layer, which can resist the impact of bulk materials. The following aspects need to be paid attention to. 1. Before installing the ceramic liner, it is necessary to be familiar with the operating procedures of the relevant equipment used in the work and the safety production specifications at the construction site. 2. Cut off the start-up power of the construction equipment, and hang up a warning sign of "Manned operation, no closing". 3. The ceramic liner can only operate after confirming that the gas and dust content is within the safe value range, otherwise accidents may occur. 4. If the equipment is underground or in a confined area, it is necessary to test the gas and dust content before using the cutting torch or electric welding. 5. After the ceramic liner installation is completed, the tools, ironware, welding slag, etc. in the installation area should be cleaned up.    

Wear resistant ceramics are more expensive than other wear-resistant materials in people's impression. Now we will elaborate on this issue.   The price of wear-resistant ceramic pipes needs to be different according to the specifications and models of the wear-resistant ceramic pipes and the selected alumina wear-resistant materials.   1. Commonly used paste type (patch type) ceramic pipes, φ219 pipes are lined with alumina corundum ceramics, the price of 1 meter in length is about RMB 1,000, and the service life can reach 3 when the working environment is not bad. Over years, it is a wear-resistant pipe with very high cost performance.   2. The smaller the diameter of the wear-resistant ceramic pipe, the more complicated the process of lining wear-resistant ceramics, and the higher the labor and machine costs; the smaller diameter pipes are recommended to use wear-resistant ceramic rings instead of wear-resistant ceramic sheets as wear-resistant Lining material.   3. The price of overall wear-resistant ceramic pipes> the price of welded wear-resistant ceramic pipes> the price of patch wear-resistant ceramic pipes.   4. In terms of the selected wear-resistant materials, the price of zirconia wear-resistant ceramic sheets> the price of alumina wear-resistant ceramics. The higher the purity of the alumina wear-resistant ceramics, the more expensive the price.   5. Generally speaking, the price is related to many factors of wear-resistant ceramic pipes. It is necessary to match suitable pipes and wear-resistant materials according to the on-site use conditions of the pipes to achieve the best cost performance!  

The wear-resistant ceramic sheet has a higher hardness and is a material second only to diamond. Its wear resistance and pressure resistance are also very strong, even in the working environment of high pressure, high temperature or strong friction, the wear-resistant ceramic sheet will not be severely damaged.   The wear-resistant ceramic sheet is a special corundum ceramic made of Al2O3 as the main raw material, rare metal oxides as the solvent, and calcined at a high temperature of 1700°C. Wear-resistant ceramic sheets have many aliases due to different regions and habits, such as ceramic sheets, linings, ceramic mosaics, alumina linings, and high-aluminum linings.   Wear-resistant ceramics have the characteristics of wear resistance, impact resistance, corrosion resistance, high temperature resistance, and convenient construction. They are used as materials in electric power, metallurgy, coal, petroleum, cement, chemical, machinery and other industries (such as ash, coal powder, mineral concentrate, Tailings, cement, etc.) is an ideal material for the surface of conveying equipment, which is very safe and reliable to use under high temperature corrosion, high temperature wear or high temperature corrosion. Data show that the life of wear-resistant ceramics is ten to twenty times longer than that of cast stone, wear-resistant alloy cast steel, steel plastic, steel rubber and other materials.   With the advent of China's industrialization era, wear-resistant ceramics have added more high-tech, making wear-resistant ceramic sheets more popular in China's industrialization field. In addition to the above advantages, the wear-resistant ceramic sheet has strong pressure bearing capacity, and the wear-resistant ceramic sheet will not be broken under strong pressure; the wear-resistant ceramic sheet is light in weight, which can greatly reduce the weight of the equipment.   Experts expect that the market demand for wear-resistant ceramic sheets and other wear-resistant accessories will see a steady growth in the future, and the wear-resistant accessories industry will also usher in a period of continuous development. Manufacturers of wear-resistant ceramic sheets must seize development opportunities to seize the domestic and foreign markets with more complete products, excellent quality, and more advantageous prices, thereby increasing their share of the wear-resistant market.