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.

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 Microwave drying of nuts 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, Microwave drying of nuts manufactor 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.

Application industry: It is applicable to the disinfection and preservation of air, water, objects, fruits and vegetables, grains and other viruses and bacteria, grain storage, feed bait, marine lakes and other bacterial carriers in indoor and outdoor spaces of all walks of life.

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, production Microwave drying of nuts 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. Microwave drying of nuts 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.

The microwave electrodeless ultraviolet sterilization equipment can ensure the sterilization effect and water quality of the effluent. It is a durable and effective sterilization technology. There is no reactivation reaction and no rebound of bacteria, ensuring complete disinfection effect and water quality safety. Compared with other sterilization methods, UV has many obvious advantages, production Microwave drying of nuts In particular, unlike chemical fungicides, the ultraviolet sterilizer will not bring toxic substances and residual substances into purified water, Microwave drying of nuts manufactor The chemical composition, odor and pH value of the fluid will not be changed. This feature is very important in pharmaceutical industry and related industries. The chemical dosage of influent can often change the characteristics of products.

The microwave ultraviolet water treatment equipment has many advantages, such as good light conditions, low energy consumption, thorough sterilization, and flexible installation of equipment. Not only that, the beautiful appearance also attracts many manufacturers to buy. Microwave drying of nuts manufactor Ultraviolet germicidal lamp should pay attention to the decline of the radiation intensity of the lamp tube. After using it for a period of time, we still use the fluorescent lamp concept to evaluate the lamp tube, and judge the invisible light intensity by the intensity of the visible light. This method is prone to errors, production Microwave drying of nuts So as to affect the sterilization effect.