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RTO, also known as regenerative oxidation device, uses ceramic regenerators to store the heat generated when organic waste gas is decomposed and uses the heat energy stored in ceramic regenerators to preheat and decompose untreated organic waste gas, so as to achieve high efficiency. With high thermal efficiency, the oxidation temperature is above 760°C, and the organic matter in the exhaust gas can be completely oxidized and decomposed in a short time. The regenerator is the core unit to reduce the operating cost of the RTO device. It can efficiently use the energy of organic matter in the process of oxidation and decomposition, and absorb and release energy. The treatment efficiency can reach more than 99.5%. No matter in terms of treatment efficiency or operation In terms of maintenance cost, it is a relatively good means to deal with organic waste gas at present. In RTO, the regenerator can repeatedly absorb and release heat. When the low-temperature organic waste gas passes through the regenerator, the regenerator releases the stored heat to the exhaust gas, so that the exhaust gas can reach the required preheating temperature. The temperature of the heating body itself is taken away; the preheated organic waste gas...
The main components of silicon mullite brick include aluminum silicate (Al2Si2O7) and silicon dioxide (SiO2). Silicon mullite bricks are refractory bricks made of special high-alumina bauxite clinker, andalusite, silicon carbide, and homogenized bauxite as the main raw materials, which are formed by high pressure molding and fired at high temperatures. The “silicon” in silicon mullite bricks refers to silicon carbide, and “Mo” refers to mullite. In fact, silicon mullite bricks are refractory bricks made of high alumina bauxite and silicon carbide as the main raw materials through sintering. Essentially, silicon mullite bricks are just high alumina bricks with silicon carbide added. Silicon mullite bricks are a refractory material usually made of a mixture of aluminum silicate and silica. These two components play an important role in bricks: Aluminum silicate (Al2Si2O7): also known as mullite (Mullite), is one of the main crystal phases of silica-molybdenum bricks. It has good fire resistance and thermal stability and can withstand thermal expansion and thermal shock under high-temperature conditions. Silicon dioxide (SiO2): also known as quartz, is another important ingredient in silicon mullite bricks. It has a high melting point and excellent high-temperature resistance, which helps to improve the refractory performance and thermal stability of...
Refractory cement is a cement that is not easily damaged at high temperatures and is widely used in construction and industry. For friends who want to buy refractory cement, Henan Xinhongji Refractory Material Co., Ltd. is a good choice. Xinhongji Refractory is a professional supplier of building materials. Its business scope covers multiple product lines such as refractory materials, castables, refractory bricks, refractory balls, and heat storage bodies. In terms of high alumina refractory cement, Xinhongji has a rich product series, and the product quality is guaranteed, which can meet the needs of different customers. Xinhongji refractory cement products are divided into two categories: ordinary and special. Ordinary refractory cement is suitable for high-temperature environments below 800°C and can be used in kiln sintering, hot blast stoves, refractory boards, etc. The special refractory cement can withstand higher temperatures, such as boilers, large hot stoves, chemical kilns, and other occasions. Different products are suitable for different occasions, and customers can choose according to their own needs. In terms of quality, Xinhongji refractory cement meets national standards and has passed the ISO9001 international quality management system certification. The quality is stable and the quality is guaranteed, so you can use it with...
Lightweight thermal insulation bricks, also known as thermal insulation bricks, are commonly used refractory bricks in refractory materials. Lightweight thermal insulation bricks have the characteristics of good thermal insulation performance. Lightweight insulation bricks are generally divided into the following types: 1. Lightweight silica brick Lightweight silica brick is a new type of refractory material, which is often used in the steel industry. It is generally used in the wall of the hot blast stove, the high hot blast channel, and is similar to the exhaust fan of the blast furnace. Due to the difference in the shape and location of the hot blast stove, the temperature range is Usually between 1000°C and 1300°C, while the load softening temperature is around 1640°C. In reality, many cases can prove that lightweight silica bricks can be used in kilns below 1500 ℃ ~ 1600 ℃ and can be used for a long time. span the stove top. 2. Diatomite insulation brick Diatomite thermal insulation brick is a light thermal insulation material made of diatomite as raw material. It has good thermal insulation performance and can be built on the back of clay bricks as a thermal insulation layer. Diatomite insulation brick has stable...
Vacuum ladle is mainly composed of a bag body, bag cover, inner lining, aluminum suction pipe, ejector, boom, beam, turbine, manual transmission mechanism, pouring aluminum port gland device, etc. It is a commonly used one in the aluminum industry. Equipment, because the high-temperature liquid aluminum liquid is shipped in the ladle, the main place where the refractory castable is used is its inner lining. It is necessary to build a refractory castable that can withstand high temperature and aluminum liquid, but the vacuum ladle is castable How should we choose? First of all, due to the relatively high activity of aluminum water and strong permeability, when we choose refractory materials, we must ensure that the refractory materials have the functions of anti-permeation, corrosion resistance, impact resistance, and wear resistance. The material is mainly non-stick aluminum refractory material. The non-stick aluminum castable is made of high-alumina bauxite clinker as aggregate, high-alumina bauxite clinker, and magnesia mixed co-milled powder as powder, and water glass as binder It has good shock resistance, permeability resistance, and impact resistance, and is a refractory castable commonly used in the aluminum and electricity industry. Non-stick aluminum castables greatly reduce the wettability of aluminum and alloys and slag...
Calcium carbide furnace is a high-temperature equipment used to produce calcium carbide (calcium oxide). Due to the very high temperature and chemical corrosion inside the calcium carbide furnace, special refractory materials are required. The following are commonly used refractories for calcium carbide furnaces: High-alumina refractories: High-alumina refractory materials are often used inside calcium carbide furnaces, such as high-alumina bricks and high-alumina castables. These materials have excellent high-temperature resistance and corrosion resistance and can withstand the erosion of high temperature and alkaline atmosphere inside the calcium carbide furnace. Silicate refractories: Silicate bricks and silicate castables are also one of commonly used refractories in calcium carbide furnaces. They have good high-temperature resistance and corrosion resistance and can withstand the erosion of high temperature and alkaline atmosphere inside the calcium carbide furnace. Silicon-carbon refractories: Some calcium carbide furnaces also use silicon-carbon refractories, such as silicon-carbon bricks. Silicon carbon material has high-temperature oxidation resistance and good corrosion resistance and can be used stably for a long time in the high-temperature environment of a calcium carbide furnace. Refractory fiber: Refractory fiber is also commonly used in the insulation layer of calcium carbide furnaces to reduce heat loss. Common refractory fiber materials include ceramic fibers and...
Corundum mullite brick for high temperatures is a kind of refractory material used in high-temperature environments, which has excellent refractory performance and thermal stability. Below is some basic information about corundum mullite bricks for high-temperature use and their production methods. Features of corundum mullite bricks: High-temperature stability: It can withstand very high temperatures, usually above 1500 degrees Celsius. Fire resistance: It has good fire resistance and can resist chemical attack and thermal shock in high-temperature atmosphere. Corrosion resistance: resistant to corrosion and erosion, suitable for acidic, alkaline, and oxidative environments. Mechanical Strength: It has high mechanical strength and wear resistance. Corundum mullite brick for high temperature is a high temperature-resistant and wear-resistant material, which is often used in industrial fields such as high-temperature furnaces and metallurgical industries. The following is a common production method of corundum mullite bricks for high temperatures: Raw material preparation: The main raw materials include high-purity corundum sand and mullite powder. These raw materials need to be crushed and sieved to ensure the uniformity of the particles and the suitability of the particle size. Mixing of ingredients: Mix corundum sand and mullite powder evenly according to a certain ratio. The mixing process can be dry or...
Chrome corundum refractory bricks, also known as high wear-resistant chrome corundum tapping channel bricks, are high-end products that Xinhongji Refractory has introduced to the market for many years. It is made of pure alumina Al2O3 and chromium oxide Cr2O3 as the main raw materials. Compared with pure corundum bricks, it has more functions, such as fire resistance, load softening deformation temperature, flexural strength, high-temperature creep, high-temperature volume stability, and corrosion resistance. It is mainly used for slide rails, tapping channels, and bevels of steel rolling heating furnaces, which are easy to wear in industrial furnaces. Chrome corundum brick is a refractory material used in many rolling mills with a service life of 10 to 18 months. Application of chrome corundum brick 1. When used in the steel industry, the service life of chrome corundum bricks is more than twice that of corundum materials, such as breathable ladle bricks. ; The wear resistance and corrosion resistance of chrome corundum bricks used in the non-ferrous metal smelting industry are obviously better than other bricks. 2. For the carbon black industry, the service life of chrome corundum bricks used by Guangdong Maoming Carbon Black Factory is twice that of corundum bricks used under...
Regenerative ball is a kind of spherical regenerator. It has the advantages of good thermal shock stability, large heat storage, high strength, easy cleaning, and reusability. It is widely used in blast furnace smelting, and it can improve the utilization efficiency of heat energy. , to reduce energy consumption, so regenerative balls are often used in the recovery of waste heat in blast furnace smelting. The main function of the high alumina regenerative ball is to support and cover the catalyst in the reactor. It can buffer the influence of liquid and gas on the catalyst. Many small balls divide the airflow into small streams. When the airflow flows through the heat conductor, it forms a strong turbulent flow and breaks through the boundary layer on the surface of the heat conductor. The diameter of the ball is very small. , small conduction radius, small thermal resistance, high density, and good thermal conductivity, so it can meet the requirements of frequent and rapid reversing of the heat conduction burner, thereby improving the distribution of liquid and gas in the reactor, so it is widely used in steel, treatment Gold industry heating furnace, forging furnace and other industrial furnaces. It is...
The melting furnace usually refers to the machine side furnace, which is placed next to the casting equipment to melt the alloy ingot and keep it warm, and the capacity is not more than 500 kg. Abbreviation for “fire nozzle”. Usually refers to the body part of the combustion device, which has a fuel inlet, air inlet, and ejection holes, which play the role of distributing fuel and combustion-supporting air and ejecting them in a certain way before burning. So what castables are used for the melting furnace burner? First of all, the temperature of the flame emitted by the burner is very high, so when choosing refractory materials, it is necessary to meet the requirements of high-temperature resistance. Secondly, the burner is easily damaged by the continuous erosion of natural gas and air, so it must have high strength and erosion resistance, and finally, the thermal shock resistance, that is, the resistance to rapid cooling and rapid heating, must be good, because the burner is in the studio, and the thermal stress generated is strong and easy Make the burner bricks crack and peel off, shortening the service life. In order to meet the above working conditions, high-alumina steel...
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