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Electric Industry Infrared Heaters For Wood Drying
We know that wet wood contains a lot of water, and wood products processed from wet wood are prone to deformation and cracking during use, so the wood needs to be dried. Although there are many methods for drying wood, due to the particularity of wood drying, drying wood is often placed in stacks in the furnace, so it is generally difficult to heat evenly and penetrate deep into the pile. Fires may sometimes occur due to excessive local temperatures. The drying method uses infrared radiation heating as the main method and forced convection as the supplement. As long as the drying process is strictly controlled, the dried wood will not crack or warp, the quality is stable and uniform, and the cost is low, the cycle is short, and energy is saved. The drying process and its control over the drying effect of wood are also closely related to the stacking of timber stacks. The quality of stacking directly affects the drying quality and time, so stacking is a very important link. The loading of timber stacks , bottom, left and right should have good air permeability, especially the upper and lower should have smooth ventilation holes to ensure that the interior of the wood is heated evenly and the water vapor on the surface of the wood is drained away in time. The drying process is divided into several stages: heating, constant temperature and cooling. Since the drying object is oak wood, which is a hard and difficult-to-dry wood that is easily deformed and cracked, the temperature is raised slowly in a stepped manner. The heating steps are controlled at 50°C, 70°C, 80°C, and 90°C respectively. The maximum temperature rise must be controlled. At a constant temperature of 90°C, in order to ensure that all parts are radiated evenly, it is best to use manual control and automatic control alternately. When cooling down, stop the machine, open the exhaust hole, and cool down naturally. Compared with steam drying, infrared drying has the advantages of less investment, short production cycle, high heat utilization rate, good drying quality, and low cost. It can achieve goals of high efficiency and speed, energy saving and stable wood quality. It is believed that in the future development, infrared heating technology will play a greater role in the field of wood drying. Medium wave quartz infrared heater lamp are particularly suitable for the fast heating of surface or thin materials, and the range of IR radiation wave is 2.2-4.0μm. Plastic, water and other solvents absorb well this medium wave radiation. Because of its long working life and economical efficiency, medium wave infrared quartz heater lamps are popular used in continuous heating processes and long heating machine or drying oven. Twin tube medium wave IR lamp is made of quartz twin tube with sizes of 23×11mm or 33×15mm. The heating filament is Ni-Cr or Fe-Cr alloy material. The total length of twin tube medium wave IR heater can be up to 6 meter. In order to better convey and focus on the heated material all the IR radiation emitted from the IR lamp, the special gold reflector or white reflector will be coated and fixed directly on the quartz surface. The response time of medium wave infrared quartz emtter is 1-4minutes, the emitters can provide constant and uniform infrared heating when they run stably. We are customized IR radiator lamp manufacturer and we have the following medium wave twin tube infrared lamps for your reference. If you need medium wave IR radiator lamp with other specifications, please refer the attached technical drawing and contact us for confirmation. We need the following specifications. 1: Total length 2: Tube diameter 3: Lamp voltage 4: Lamp power 5: Reflector
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2023
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Application of infrared heating and drying for food and medicinal materials and spices
Drying of grains and medicinal materials is a key step to ensure product quality and reduce energy consumption. Traditional drying methods have a series of problems,
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Application of Infrared Heating in Textile Drying Industry
The application of quartz infrared (QIR) technology in the textile drying industry has revolutionized the way fabrics are handled and processed. Quartz-infrared radiation technology, with its unique heating properties, has been shown to be beneficial in improving the quality and functionality of textiles drying. Quartz-infrared heating technology can be used in the bleaching, dyeing, sizing and shaping of various cotton, wool, silk and chemical fiber fabrics. The prebaking, shaping, hot-melting, and heating of baking equipment for synthetic fiber blended fabrics generally use convection, conduction, etc. methods. Among them, the thermal efficiency of hot air convection heating is only about 30%. The new technology of quartz-infrared radiation has the advantages of fast heating speed, low energy loss, good product quality and small equipment footprint. Therefore, in recent years, quartz-infrared heating have been gradually promoted and used in the printing and dyeing industry. When quartz-infrared heating reach an object, the following three situations will occur: part is reflected on the surface of the object, part is absorbed by the object, and the rest is transmitted through the object. The absorbed infrared radiation energy is converted into heat, causing the object to heat up. The greater the energy absorbed, the higher the temperature of the object rises. When applying quartz-infrared heating, we hope that the reflection and transmittance of the heated object are smaller and the absorptivity is larger. For this reason, the wavelength of infrared radiation is required to match the absorption wave of the heated object. Inorganic substances such as water, water vapor and glass, as well as most organic substances and polymer substances, can absorb infrared heating, and can strongly absorb quartz-infrared heating. The dry heat treatment of synthetic fiber fabrics and the pre-drying of dyeing use this characteristic to reduce energy consumption and improved quality. The setting of synthetic fiber fabrics requires the time required for the cloth surface to be heated to the setting temperature after the fabric enters the setting machine, and then further penetrates into the fabric to reach between the fiber molecules, and is adjusted according to the setting conditions. quartz-infrared radiation can radiate directly to the heated fabric and has two characteristics: transmission and absorption. After absorbing quartz-infrared energy of a certain wavelength, the molecules and atoms of the heated fabric vibrate and rotate intensified, increasing the energy of movement, causing the fabric to absorb heat and heat itself. It is much faster than convection heating and is used for hot melting of disperse dyes. Dyeing can shorten the hot melting time or lower the hot melting temperature. Similarly, the use of quartz-infrared resin baking with the help of a catalyst can complete the cross-linking reaction between the resin and the fiber in a short time. In summary, quartz-infrared technology has become a game-changer for the textile industry. Its application in dyeing and finishing, functional textiles, smart textiles and other fields has brought significant improvements in efficiency, quality and functionality.
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