VOCS catalytic combustion waste gas treatment equipment in paint shop: Catalytic combustion equipment is a kind of deodorization and deodorization waste gas treatment equipment. The concept of catalytic combustion is to use the catalytic incineration reaction of combustibles under the effect of catalyst and certain temperature conditions. Combustibles are burned under the effect of catalyst. Compared with direct incineration, catalytic incineration has a lower temperature and is quite safe. Catalytic principle and equipment composition (1) Catalyst is defined as a substance that can improve the rate of chemical reaction, control the direction of reaction, and keep its chemical properties unchanged before and after reaction. (2) The mechanism of catalytic effect The mechanism of catalytic effect is a very complicated problem, which is only briefly introduced here. In a chemical reaction process, the participation of the catalyst cannot change the original chemical balance, but only the speed of the chemical reaction. Before and after the reaction, the nature of the catalyst itself does not change. So, how does the catalyst speed up the response? The catalyst has not changed before and after the reaction, so has the catalyst participated in the reaction? In practice, the catalyst itself has participated in the reaction. It is because of its participation that the reaction has changed the original path, reduced the activation energy, and then accelerated the reaction speed. For example, the reaction A+B → C is transited through the central active complex (AB), that is, the reaction speed of A+B → [AB] → C is slow. After participating in catalyst K, the reaction is completed in an easy way: A+B+2K → [AK]+[BK] → [CK]+K → C+2K center no longer needs the transition from [AB] to C, and then the reaction speed is accelerated without changing the catalyst properties. (3) Process composition of catalytic incineration equipment: different emission occasions and different exhaust gases have different process flows. However, no matter which process flow is adopted, it is composed of the following process units. ① Waste gas pretreatment In order to avoid blocking of the catalyst bed and catalyst poisoning, it is necessary to pretreat the waste gas before entering the bed to remove the dust, droplets and catalyst poisons in the waste gas. ② Preheating equipment Preheating equipment includes waste gas preheating equipment and catalyst incinerator preheating equipment. Because all catalysts have a catalytic activity temperature, it is called catalyst ignition temperature for catalytic incineration. It is necessary to make the temperature of exhaust gas and bed reach the ignition temperature before catalytic incineration. Therefore, it is necessary to set up preheating equipment. However, for occasions where the exhaust gas temperature is high, such as enameled wire, insulating material, baking varnish, etc., and the temperature can reach more than 300 ℃, preheating equipment is not required. The hot gas heated by the preheating equipment can be arranged in the heat exchanger and bed. The heat source of the preheater can be flue gas or electric heating, and now electric heating is more used. When catalytic reaction starts, exhaust gas can be preheated with recovered reaction heat as far as possible. In the case of high reaction heat, waste heat recovery equipment should also be set to save power. The heat source temperature of preheated exhaust gas generally exceeds the catalyst activity temperature. In order to maintain the catalyst, the heating equipment should be kept a certain distance from the catalytic incineration equipment, so that the exhaust gas temperature can be evenly distributed. Starting from the need for preheating, catalytic incineration is applicable to the purification of continuous exhaust. If intermittent exhaust, not only each preheating needs energy, but also the reaction heat can not be recycled, which will result in great power waste. This should be noted in planning and selection. ③ Fixed bed catalytic reverberator is generally selected as catalytic incineration equipment. The planning of the reverberator shall be carried out according to the standard, which shall be convenient for operation, repair and catalyst loading and unloading. In the process planning of catalytic incineration, it is necessary to plan the built-up process of components according to the specific situation in the case of large air volume, that is, the preheater and the reverberator are installed separately, and the pipes are connected between them. For occasions with small air volume, catalytic incinerators can be selected to combine preheating and reaction, but pay attention to the distance between preheating section and reaction section. In the catalytic incineration of organic waste gas, the organic waste gas to be treated is easy to explode when mixed with air at high temperature, so the safety problem is very important. Therefore, on the one hand, it is necessary to control the mixing ratio of organic matter and air to keep it at the lower explosive limit; On the other hand, the catalytic incineration system should be equipped with monitoring and alarm equipment and explosion-proof measures.

The microwave ultraviolet water treatment equipment uses quartz sand filter material to remove the suspended solids, sediment, impurities, etc. of larger particles in the raw water and the turbidity of precipitation. In addition, it can also remove organic substances, bacteria, x, etc. in the water along with the decrease of turbidity, and create good conditions for disinfection after filtration. production Microwave heating equipment Use the adsorption capacity of activated carbon to effectively adsorb organic matter, free residual chlorine, colloid, particles, microorganisms Microwave heating equipment programme For some metal ions and decolorization, the exchange function of ion resin is used to remove calcium and magnesium ions in raw water to avoid the impact of scaling on subsequent equipment. However, the operation is laborious and material consuming. Now, the dosing system is used to directly add scale inhibitor.

Microwave electrodeless ultraviolet sterilization equipment can destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in the cells of microbial organism by using ultraviolet light of appropriate wavelength, production Microwave heating equipment Cause growth cell death and (or) regenerative cell death to achieve the effect of sterilization. The microwave electrodeless ultraviolet sterilization equipment should be one of the equipment in the system before the water returns to the aquarium. It should be preceded by biological and mechanical filters, as well as any chemical filters or heat exchangers in the system. Microwave heating equipment programme Follow the manufacturer's installation instructions. Most devices use hose barb connectors to connect to the appropriate water pump, or are designed to allow additional connectors to be connected as PVC sliding fit or hose barb. To ensure microwave electrodeless ultraviolet sterilization

1. The welding of equipment shell and framework shall be firm without obvious deformation or burn through defects. 2. The equipment surface shall be evenly sprayed with the same color, and the surface shall be free of flow marks, bubbles, paint leakage and peeling. 3. The appearance of the equipment shall be neat and beautiful without obvious hammer marks and unevenness. The panel instruments, switches, indicator lights and labels shall be installed firmly and correctly. In order to ensure the stability of the equipment, we need to replace the lamp regularly, production Microwave heating equipment The imported lamp should be replaced after 9000 hours of continuous service or one year to ensure a high disinfection rate. Microwave heating equipment programme When replacing the lamp tube, first pull out the power socket of the lamp tube, pull out the lamp tube, then carefully insert the cleaned new lamp tube into the sterilizer, install the gasket, check for water leakage, and then plug in the power supply. Be careful not to touch the quartz glass of the new lamp tube with your fingers, otherwise the disinfection effect will be affected due to stains.

When choosing microwave electrodeless ultraviolet sterilization equipment, there are different wave bands to choose from, production Microwave heating equipment It is recommended to select disinfector with deep ultraviolet wave band. Because the deep ultraviolet wave band has a wider sterilization range and stronger sterilization ability. Microwave heating equipment programme In addition, when using the disinfector in the deep ultraviolet wave band, we must pay attention to the radiation dose and time. If the irradiation dose is not enough or the time is too short, there is no way to achieve the expected sterilization effect.

During the installation of the microwave and ultraviolet water treatment equipment, the commissioning shall be carried out continuously, production Microwave heating equipment A lot of work needs to be completed before installation. For example, some of their installations must meet the final installation standards and have the final acceptance standards, so that there can be more ways to deal with it, Microwave heating equipment programme The operation shall be carried out according to the relevant design requirements as far as possible, and all operations can be accepted during the operation process, so as to ensure the actual use.