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 sterilization principle of microwave electrodeless ultraviolet sterilization equipment is to use the sterilization ability of ultraviolet light. Can ultraviolet light directly kill microorganisms? Pet feed deodorization equipment programme According to different biological effects, ultraviolet light is generally divided into four parts according to wavelength: A-band (UV-A), production Pet feed deodorization equipment Also known as black spot effect ultraviolet (400 ～ 320 nm); B band (UV-B), also known as erythema effect ultraviolet (320 ～ 275 nm); C-band (UV-C), also known as sterilization ultraviolet (275 ～ 200 nm); D-band (UV-D), also known as vacuum ultraviolet ray (200-100 nm). C-band ultraviolet light is mainly used for water disinfection.

According to the source of sewage, sewage microwave ultraviolet water treatment equipment mainly includes production sewage microwave ultraviolet water treatment equipment and domestic sewage microwave ultraviolet water treatment equipment. The former refers to industrial sewage microwave ultraviolet water treatment equipment and hospital sewage microwave ultraviolet water treatment equipment, while domestic sewage mainly refers to sewage generated in daily life, municipal sewage microwave ultraviolet water treatment equipment, etc. Sewage quality includes TSS, namely suspended solids in water, sewage type and proportion, etc. The types of sewage and water quality are different. When choosing ultraviolet sterilization equipment, production Pet feed deodorization equipment It shall be configured differently. Water volume mainly refers to the average flow and peak flow of sewage to be treated. Secondly, consider whether the equipment operation time is 24 hours or intermittent water supply. In addition, Pet feed deodorization equipment programme In addition, the discharge standards for effluent quality requirements and the bacterial indicators and requirements for sewage inflow and outflow shall be considered, and the number of modules required for the UV sterilization equipment of the sewage microwave UV water treatment equipment, the number of lamps included in the module, and the discharge distance of the module shall be specifically designed. In addition, when selecting equipment, we must first determine the treatment water quantity, water quality, discharge standards and other factors. In the process of model selection, the quality, service life and after-sales service of ultraviolet sterilization equipment should be comprehensively investigated.

In the microwave and ultraviolet water treatment equipment, the reverse osmosis equipment needs three kinds of sealing rings to realize the sealing barrier of each part of the membrane shell. In order to reduce the resistance of the device, water or glycerin should be added to the surface of the sealing ring. production Pet feed deodorization equipment Microwave ultraviolet water treatment equipment PP cotton softening equipment. Pet feed deodorization equipment programme Special attention should be paid to the use of petroleum jelly or other petroleum grease lubricants as lubricants. Otherwise, the fresh water pipeline will crack, especially the expansion of the sealant ring. The expansion of the skirt does not directly affect the operation of the system, but will affect the reloading of the system after unloading, that is, the expansion skirt is difficult to enter the slot during loading.