The gas of organic matter discharged from the workshop is subject to particle filtration and desorption after adsorption, and the high concentration organic waste gas from desorption is discharged after catalytic combustion. (The desorbed high concentration organic waste gas enters the catalytic chamber for catalytic combustion after heat exchange, and the discharged hot air desorbs and regenerates the adsorption bed and circulates in turn).

Stainless steel wire woven filter screen is often used, 30-40 hole/cm filter screen is used for crude oil filtration, and 140-180 hole/cm filter screen is used for decolorization oil filtration. new type Silver ion sterilization The selection of filter medium will affect the clarification of filtered oil and fat, and whether the cake unloading is smooth. The filter media used in the grease industry are mostly woven media, Silver ion sterilization manufactor Common cotton fabrics such as canvas, twill and ordinary white muslin with 20 yarns and 5-8 strands.

Most of the microwave ultraviolet water treatment equipment is installed in the plant, but some are installed outdoors. When winter comes, the temperature also drops to below zero. Because the volume of water will increase significantly in the process of solidification and freezing, new type Silver ion sterilization Once the microwave and ultraviolet water treatment equipment and pipeline are iced, it will cause the water flowing part of the equipment and pipeline to break, resulting in economic losses. Then let's see how to maintain the microwave ultraviolet water treatment equipment in winter. Silver ion sterilization manufactor In order to increase the effective thermal insulation measures for outdoor microwave ultraviolet water treatment equipment and pipes, straw rope wrapped with plastic film can be used for thermal insulation, or 1.2-1.5cm thick insulation cotton or insulation cotton pipe can be used for tape wrapping.

Microwave and ultraviolet water treatment equipment can improve heat exchange efficiency, save energy and reduce consumption. new type Silver ion sterilization The deposits on the surface of the cooler rise by 0. mm every time, High efficiency of heat exchanger can generally reduce 20-30%, and power consumption will increase 4-8%. The selection of organic chemical dosing method can maintain the equipment and extend the service life of the equipment. The etching rate of carbon steel by cooling circulating water without microwave ultraviolet water treatment equipment exceeds 0.5mm/a, Silver ion sterilization manufactor The corrosion rate of the solved cooling circulating water on carbon steel is less than 0. mm/a, which can reasonably maintain the equipment and extend the service life of the equipment. Reduce the frequency of routine maintenance to ensure normal operation.

Activated carbon adsorption and catalytic combustion equipment is a common volatile organic waste gas treatment equipment. It is energy-saving, environmental protection, no secondary pollution, and high purification efficiency. It is a very good equipment for VOC waste gas treatment. Generally, the main composition of activated carbon adsorption catalytic combustion equipment is as follows: Pretreatment equipment: since honeycomb activated carbon adsorption requires specific conditions such as temperature, humidity and cleanliness, it is necessary to treat the organic waste gas with different characteristics before entering the activated carbon adsorption. The organic waste gas containing more dust particles needs to be filtered. The waste gas with a temperature greater than 45 ℃ needs to be cooled, and the waste gas containing a large number of water mist particles needs to be separated and filtered. Activated carbon adsorption bed: it can absorb organic waste gas by taking advantage of the porous physical characteristics of activated carbon. The design of the adsorption bed follows the law of two-phase adsorption curve. Only by combining the amount of activated carbon and calculating the cross section wind speed and retention time of activated carbon adsorption can the adsorption efficiency meet the design requirements and meet the emission standards. The box is in negative pressure state during equipment operation, and it is required to be air tight. The desorption temperature of the box is between 70-100 ℃ during the desorption process, and the heat preservation is generally 50mm considering the energy saving and safety factors. Ensure that the temperature of the outer wall of the box is not higher than the normal temperature by 15 ℃. Main exhaust fan: as the main power of the equipment, the exhaust fan guides the air to move according to the specified process. The fan can be selected accurately only when it is stable and reliable, and the resistance calculation of the system is accurate. The operation of the fan will produce noise, and the high-power fan needs to be equipped with a sound insulation room. Attention shall be paid to the design that the wind speed at the air outlet shall not be too high. Catalytic combustion equipment: after the system has operated for a period of time, the activated carbon needs to be regenerated after adsorption saturation to restore the adsorption activity of the activated carbon. The organic waste gas is concentrated in the activated carbon. After the organic matter is separated from the activated carbon layer at low temperature, it is decomposed into water and carbon dioxide at about 300 ℃ through the action of the catalyst. At the same time, the energy is released. The energy is replaced by the heat exchange device to maintain the energy of equipment spontaneous combustion. For a single activated carbon adsorption bed, the desorption time is 2-2.5 hours. The set time of activated carbon adsorption box is automatically switched to desorption regularly. The service life of the ceramic honeycomb noble metal catalyst loaded inside is 8000 hours. The whole desorption system adopts multi-point temperature control to ensure the stability of desorption effect. The selection of organic waste gas catalyst is the core of this equipment. Valve switching system: valves include adsorption system valve, desorption system valve, cooling and emergency discharge valve. The three types of valves are required to be timely and accordingly to ensure that the air leakage rate is less than 2%. The conventional galvanized sheet air valve in the market has air leakage due to unreliable sealing, so it is necessary to select the high temperature resistant air valve with silicone gasket. The temperature is reliable when opening and closing the valve. Due to the temperature of the gas through which the valve passes, it is very easy for conventional plastic electric actuators to age and deform, resulting in ineffective execution. Generally, long rod actuators are used.