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 catalyst. At the same time, the energy is released. The energy is replaced by the heat exchange device to maintain the energy of spontaneous combustion of the equipment. 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.

When microwave ultraviolet water treatment equipment is used, the construction of all equipment must be understood according to the relevant drawings or manufacturing technology, even before the equipment is used, Customized Microwave wood drying equipment Basically, the installation shall be carried out according to the relevant works, and the design shall be carried out according to the size of the whole casing or the relevant actual use needs, the soil of reinforced concrete and other embedded parts, Microwave wood drying equipment manufactor It is also necessary to do a good job in relevant design, and their size and location should meet the design requirements. In the actual treatment process of microwave and ultraviolet water treatment equipment, there will be various processes of construction or acceptance. Of course, as long as the installation of some machinery or other pipeline construction is involved, the welding process will be more or less controlled, and they should refer to the relevant design regulations, Or other standards and related technologies can be used cooperatively.

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. Customized Microwave wood drying equipment 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, Microwave wood drying equipment manufactor Common cotton fabrics such as canvas, twill and ordinary white muslin with 20 yarns and 5-8 strands.

Ultraviolet is a kind of light wave invisible to the naked eye, which exists outside the ultraviolet end of the spectrum, so it is called ultraviolet. Ultraviolet ray is one of the electromagnetic waves radiated by the sun. It is a special form of material operation, which is a flow of particles that are not connected. Each UV photon with a wavelength of 253.7 nm has an energy of 4.9 eV. When ultraviolet rays irradiate microorganisms, energy transfer and accumulation will occur, and the accumulation results in the inactivation of microorganisms, thus achieving the purpose of disinfection. When bacteria and viruses absorb more than 3600~65000uW/cm2, it has a strong destructive power on DNA and RNA of bacteria and viruses, and can make bacteria and viruses lose their viability and fecundity, thus eliminating bacteria and viruses, Customized Microwave wood drying equipment Achieve disinfection and sterilization effect. On the one hand, ultraviolet light can mutate nucleic acids, hinder their replication, transcriptional blockade and protein synthesis; On the other hand, the production of free radicals can cause photoionization, which will lead to cell death. Microwave wood drying equipment manufactor The sterilization principle of the microwave ultraviolet water treatment equipment is to use the irradiation intensity of the ultraviolet lamp, that is, the irradiation intensity emitted by the ultraviolet sterilization lamp, which is inversely proportional to the distance of the irradiated disinfectant. When the irradiation intensity is constant, the longer the residence time of the irradiated disinfectant is, the closer it is to the sterilization lamp tube, the better the sterilization effect will be. On the contrary, the worse the sterilization effect will be. This equipment can be used in direct drinking water equipment to obtain good water purification effect.

1. If linear installation is required, please use the installation method of low water inlet and high water outlet to slow down the water flow rate and increase the effect of ultraviolet radiation. 2. When working, Microwave wood drying equipment manufactor Do not look directly into your eyes with an ultraviolet lamp. When the equipment is open, repeated opening and closing will seriously affect the service life of the lamp. 3. If the water flow is too fast, please install current limiting and pressure limiting devices. 4. If the turbidity of raw water exceeds 5 degrees, a prefilter should be installed to ensure ultraviolet sterilization. 5. Please take out the quartz sleeve every time. Customized Microwave wood drying equipment After using the disinfection lamp for two to three months, check the surface for dirt to determine the next time to clean the surface of the quartz sleeve.

The catalytic combustion equipment for waste gas treatment is mainly used as a supporting part of the catalytic bed electric heating oxidation combustion system in the CO/RCO adsorption+desorption+catalytic combustion system. It is widely applicable to the purification and odor elimination of hazardous waste gas volatilized or leaked from painting, printing, household appliances, footwear, plastics and various chemical workshops, and is suitable for low concentration (1501000) The organic waste gas that is not suitable for direct combustion or catalytic combustion and recovery treatment will be concentrated by activated carbon adsorption, and then the high concentration organic waste gas will be removed through the desorption procedure and sent to the unit for thermal oxidation reaction. The self heating effect of the organic waste gas catalytic reaction can greatly reduce the heat consumption of the electric heater, especially for the treatment sites with large air volume, Satisfactory economic and social benefits can be obtained. Application scope of exhaust gas catalytic combustion equipment: 1. Industrial applications: common pollutants discharged from petrochemical, light industry, plastics, printing, coating and other industries; 2. Waste gas type application: hydrocarbon compounds (aromatics, alkanes, olefins), benzene, ketones, phenols, alcohols, ethers, alkanes and other compounds; Features of catalytic combustion equipment for waste gas treatment: 1. Convenient operation: fully automatic control during operation. 2. Low energy consumption: during normal operation, the equipment operates at low power (or no power) because the exhaust gas has some concentration. 3. Stable performance: pressure relief and self protection, fire resistance and dust removal, over temperature alarm and automatic control. 4. Low resistance: honeycomb ceramic catalyst impregnated with today's advanced precious metal palladium and platinum has a large specific surface area. 5. Small floor area: only 70% of the same products in the same industry. 6. Long service life: the catalyst is usually replaced within 4 years