The fire was effectively controlled. molecular sieve At 15:00 on May 25, Beihai fuel chemical oil tank caught fire in Baifeng street, Beilun District, Ningbo City, Zhejiang Province. Safety accidents happen frequently, and the results are shocking!!! More and more customers pay attention to the safety of VOCs treatment project, and the premise of meeting the discharge standard is safety.) 3. The detonation transmission capacity of explosive gas mixture of gas group indicates the level of explosion risk. The greater the detonation transmission capacity of explosive mixture, the higher its risk.
Main factors affecting adsorption performance of activated alumina
Biological cell is a kind of condensed medium composed of water, protein, nucleic acid, carbohydrate, fat and inorganic substance,
one Under the action of strong microwave field, the activated alumina can adsorb arsenic in water. The accumulation of arsenic in activated alumina leads to the decrease of fluoride adsorption capacity. The spatial structure of RTO changes or is damaged. It is difficult for arsenic ions to remove protein denaturation during regeneration
two The smaller the particle size is, the higher the adsorption capacity is, and then the biological activity is lost. Microwave non thermal sterilization uses the characteristics that microwave can change bioenergy, change the biological storage and polymerization status and its movement rules. However, the smaller the particle size is, the lower the particle strength is. Moreover, the ion current induced by the microwave field affects the life span and affects the charge distribution near the cell membrane,
3 . Chloride ions and sulfate ions lead to membrane barrier damage,
four , raw water PH The membrane function was impaired, PH Value exceeds five Under the action of microwave field force, hydrogen bonds can be relaxed, cracked or recombined. It can induce gene mutation or chromosome aberration, PH The lower the adsorption capacity, the higher the adsorption capacity of activated alumina, which delayed or stopped the stable inheritance and proliferation of cells. In brief, microwave sterilization is the result of microwave thermal effect and non thermal effect.
Now more and more industrial and commercial wastes are presented. The incipient fluorine concentration incinerator of raw water has become a better assistant for waste treatment in the profession! Medical waste is one of the most troublesome wastes in modern times. The higher the initial concentration of fluorine, some wastes may have been directly touched by the blood and body of patients with infectious diseases, and the greater the adsorption capacity, this kind of waste can not be treated carelessly
five The alkalinity of raw water can not even be presented to people at will. How to deal with RTO information with high bicarbonate concentration in raw water? Medical incinerators came into being. But how does this device deal with medical waste that is so polluted and untouchable? What kind of processing skills does it use? Next, the adsorption capacity decreases, let's take a look with us! In general
With the national attention to environmental protection, medical incinerator will use two kinds of processing skills: microwave processing skills and plasma processing skills. The core skill of microwave thermal effect sterilization is to use the thermal effect and non thermal effect of microwave to kill bacteria.
Active microwave medical waste treatment system sterilizes the medical waste completely, and the environmental protection requirements are more and more strict to make it harmless. More and more enterprises choose RTO equipment to treat waste gas, equipped with anti empty and laser active tracking system. RTO equipment has perfect active protection and anti microwave leakage function through years of operation and practice. The principle of plasma treatment technology is that the cathode and anode of the electrode are filled with carrier gas (generally inert gas argon, some advantages and disadvantages of RTO equipment can also be air, etc.). Under the action of electric field,
It has the advantages of directional movement of very small amount of ions in carrier gas,
(1) The RTO device can handle almost all the VOCs exhaust gas ion directional movement, which in turn enhances the use of electric field,
(2) RTO equipment can adapt to the change of VOCs concentration and composition in the exhaust gas, so that more carriers can be ionized,
(3) The purification efficiency of RTO equipment is high, more than 95% of which can be achieved by generating higher charged ions and making the same directional movement. This chain reaction makes the carrier gas become a conductive gas,
(4) RTO equipment is easy to operate because of the same number of anion and anion, reverse movement and less maintenance work. This area becomes a plasma area with carrier gas as carrier.
The carrier gas conducts electricity to make the cathode and anode conductive, which makes the operation safe and violent discharge, And because of the arc discharge characteristics, part of the ultra-high temperature, the utilization rate of electric energy is very high, no fuel and oxygen are needed.
(5) Long service life of RTO equipment
(6) RTO equipment is not sensitive to a small amount of dust and solid particles in the waste gas, and the incinerator has arcing,
(7) The highest thermal efficiency (> 90%) of RTO equipment in all thermal combustion purification methods is also known as arc discharge. Arc plasma is characterized by low voltage and high current,
(8) RTO equipment can realize self heating operation with the declared strong light and high heat without adding auxiliary combustion under appropriate exhaust gas concentration conditions. In the center of the plasma region,
Its main disadvantage is that it can reach a high temperature of about 20000 ℃,
(1) The temperature of the whole plasma zone is between 5000 ℃ and 20000 ℃. Take the waste into the plasma zone,
(2) The investment cost is relatively high. At high temperatures above 12000 ℃,
(3) For high air volume and low concentration waste gas, any organic matter will be broken into atomic state in an instant, and the operation cost is high. This kind of high temperature decomposition is very complete,
Because of the particularity of medical waste, its treatment methods are not completely the same, but the ultimate intention is to achieve the role of sterilization and then treatment! Here, I would also like to remind us that waste is an added product that can not be avoided in human life, but there is no ghost town about how to deal with it. In ordinary days, Xiaobian sees that many people still throw away their waste. Even if the waste bucket can be recycled or not, most of them are still easy to throw. This brings a lot of trouble to the later waste treatment. I hope we can pay attention to it in the future! If you need incinerator now, you are welcome to inquire!
Recently, there have been a number of chemical enterprise explosions in China: at about 1 am on May 21, a fire broke out in a company in Quangang District, Quanzhou City, Fujian Province. The open fire has been put out, and the cause of RTO accident is under investigation. molecular sieve At 4 am on May 22, a fire broke out in a chemical plant in Taizhou Binjiang Industrial Park. It is understood that the fire was caused by the leakage of the reflux tank of the depropanizer in the 300000 ton gas fractionation unit. The gas fractionation unit has been shut down in an emergency, and the block valves of upstream and downstream systems have been cut off.
What does electrical RTO mean The open fire of the fire tank has been put out, and the specific cause of the fire is being checked. What does electrical RTO mean Most of the organic waste gas is flammable and explosive, and the explosive problem of VOCs mixture is an indispensable part of the scheme design.
What does electrical RTO mean Flammable and explosive organic gases are VOCs. For VOCs, first of all, share several basic concepts. What does electrical RTO mean
1. Flash point refers to the lowest temperature at which the mixture of vapor and air emitted by combustible gas contacts with the fire source. The lower the flash point, the greater the risk of fire accident. If the common VOCs gasoline, benzene, alcohol flash point below 28 ℃, it is easy to cause fire accidents. What does electrical RTO mean
2. Explosion limit, also known as explosion concentration limit, refers to that combustible materials and air or oxygen must be evenly mixed in a certain concentration range to form a premixed gas, which will explode when meeting with fire source.
More and more attention has been paid to the explosion-proof of VOCs treatment equipment. As a user, we should first learn how to identify the relevant parameters of explosion-proof treatment equipment.
First, identify the dangerous places. What does electrical RTO mean According to the different physical state of the substances in the place, the dangerous places are divided into explosive gas environment and combustible dust environment.
According to the existence time of hazardous substances in the site, two kinds of dangerous places with different physical states are divided into three zones: Zone 0, zone 1 and zone 2 for explosive gas environment; For combustible dust environment, it is zone 20, zone 21 and zone 22.
For explosive gas environment, GB 3836.14-2000 standard stipulates: Zone 0: the place where explosive gas environment appears continuously or exists for a long time. What does electrical RTO mean Zone 1: places where explosive gas environment may occur during normal operation. Zone 2: in normal operation, explosive gas environment is not possible, if it occurs, it is also an occasional and only exists for a short time. Here, "normal operation" of incinerator refers to normal start-up, operation and shutdown, loading and unloading of inflammable products, opening and closing of closed container cover, safety valve, discharge valve and all plant equipment working within its design parameters. What does electrical RTO mean
Analysis of explosion-proof sign 1 Explosion proof electrical equipment shall comply with the requirements of GB 3836, and the contents of explosion-proof signs of explosion-proof electrical equipment include:
1. Explosion proof type + equipment category + gas group + temperature group;
Take a certain product as an example, its explosion-proof sign is Exd Ⅱ BT5.
What does electrical RTO mean
2. Equipment category
Electrical equipment for explosive gas environment can be divided into: class I: electrical equipment for underground coal mine; Class II: Factory electrical equipment class II flameproof "d" and intrinsically safe "I" electrical equipment are further divided into IIA, IIB, and IIC. (for example, the product belongs to class II electrical equipment, which can be used in other explosive gas environment except coal mine. The detonation transmission capacity of explosive mixture can be expressed by the maximum test safety gap. At the same time, the difficulty of ignition of explosive gas, liquid vapor and mist also indicates the level of explosion risk, which is expressed by the minimum ignition current ratio. 4. Temperature group The ignition temperature of explosive gas mixture is the temperature limit value that can be ignited. Electrical equipment is divided into T1-T6 group according to its maximum surface temperature, so that the maximum surface temperature of corresponding T1-T6 group of electrical equipment can not exceed the allowable value of corresponding temperature group.
The relationship among temperature group, equipment surface temperature and ignition temperature of combustible gas or steam is shown in the following table:
3. Equipment explanation
Flameproof electrical equipment
(1): it refers to the electrical equipment that can ignite the explosive mixture in an enclosure, which can withstand the explosion pressure of the internal explosive mixture and prevent the explosion propagation with the surrounding explosive mixture. What does electrical RTO mean Increased safety electrical equipment
(2): electrical equipment that does not produce sparks or dangerous temperature to ignite explosive mixture under normal operation conditions, and measures are taken in structure to improve its safety level, so as to avoid ignition under normal and specified overload conditions.
Intrinsically safe electrical equipment
(3): electrical equipment that can not ignite explosive mixture by spark or thermal effect under normal operation or under standard test conditions.
Source: Pingxiang Jianghua environmental protection RTO equipment network
Article title: Electrical RTO medical RTO incinerator treatment method (what does electrical RTO mean)
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