The dust bag quoting process, and if you choose a custom solution, be aware that selecting a vendor and a specific department does change the quoting process by increasing the time and complexity of the entire process. The quoting process for dust bag systems is more collaborative and back-and-forth advantageous than the traditional quoting process, and for good reason. If you are not used to ordering dust handling systems, then designing a custom solution may mean relying more on the experience and engineering support of the supplier than on the standard product. However, if you are an experienced "dust designer" and know which products are right for your application, you may have fewer opportunities to go back and forth and specify more systems than a customer who has gone back and forth to install his or her first few systems. A custom system quote must define all aspects of the equipment, such as the type of dust/gas to be filtered, airflow patterns, space limitations, energy consumption and compliance/performance, and outer enclosure accessories. This can be a lengthy list as all customization items need to be specified. If customizing dust bags, make sure that the quotation takes into account the "external" elements of the dust system. These typically include ducting, ductwork, fume hoods, or pickups. For these components, custom quotes may specify working with supplemental suppliers or subcontractors, so the final system will necessarily include the source of these subsystems in a manner that ensures compatibility with the core dust collector or scrubber. Also, remember to consider the overall lifetime performance requirements of the system. For detailed, complex or highly specialized setups, maintenance and operating costs may differ when comparing standard versus custom. For example, special filter media may be more expensive, or the cost of compressed air and energy consumption may be different. Anhui Yuanchen Environmental Protection Technology Co., Ltd (" Yuanchen Technology") is a high-tech enterprise integrating the research and development, production and sales of dust removal bags and denitrification catalysts. The dust bags (mainly PPS, PTFE, P84 and composite series filter materials) and SCR denitrification catalysts have been widely used in cement, steel, glass kilns, waste incineration power generation, biomass power generation, non-ferrous metal smelting and other industries. In the future, Yuanchen Technology will be guided by "becoming the guardian of global ecological environment", always rooted in environmental protection, and insist on the great cause of guarding the blue sky and white clouds. Leveraging on the national ecological civilization construction pattern, we will continue to deepen technology, optimize management, strengthen brand, refine industry, solidify advantages, and create synergistic value for industry through comprehensive and integrated governance and services. http://www.yckjgf.com/

I What are the causes of dust bag clogging When the bag filter bag is blocked, the resistance of the bag increases, which can be shown by the increase in the reading of the differential pressure meter. Clogging of filter bag is the main factor that causes the bag filter bag of cloth dust collector to wear, perforate and fall off, etc. The main causes of dust collector filter bag clogging are (1) Improper installation of dust collector filter bags. (2) air leakage of dust collector equipment. (3) dust collector equipment blowing cleaning strength is too small. (4) the internal temperature difference of the dust collector equipment is too large, resulting in condensation. (5) The filter bag of dust collector is broken and cannot work normally. II The solution for the blockage of filter bag of cloth bag dust collector is (1) Check whether the dust collector filter bag is installed correctly. (2) Check whether the dust collector equipment is running normally. (3) Temporarily strengthen the dust cleaning to eliminate the blockage of dust collector filter bags. (4) Partial or complete replacement of dust collector filter bags. (5) Adjust the dust collector installation and operation conditions. Anhui Yuanchen Environmental Protection Technology Co., Ltd ("Yuanchen Technology") is a high-tech enterprise integrating R&D, production and sales of dust removal bags and denitrification catalysts. The dust bags (mainly PPS, PTFE, P84 and composite series filter materials) and SCR denitrification catalysts have been widely used in cement, steel, glass kilns, waste incineration power generation, biomass power generation, non-ferrous metal smelting and other industries. In the future, Yuanchen Technology will be guided by "becoming the guardian of global ecological environment", always rooted in environmental protection, and insist on the great cause of guarding the blue sky and white clouds. Leveraging on the national ecological civilization construction pattern, we will continue to deepen technology, optimize management, strengthen brand, refine industry and solidify advantages, and create synergistic value for industry through comprehensive and integrated governance and services.

With the increasing standard of living of the people, the national requirements for environmental protection emissions are becoming stricter and stricter, industry has brought rapid economic development, but in the development to also pay attention to flue gas emissions to meet the standards of environmental protection requirements. Low carbon economy has become the trend of development in the new era, and denitrification catalyst has become one of the important components to meet the emission standards. At present, the function of natural gas boilers, mainly for heating, steam production and power generation as a supplement, natural gas is recognized as clean energy, the early that boilers do not need environmental protection tail gas treatment facilities, but at this stage there are policy requirements for denitrification, the general requirement for emission standards below 50 mg/Nm3, special area emission standards below 30 mg/Nm3, Jiangsu Province had developed emissions below 10 mg/Nm3 for the solicitation of standards At present, the main technology is low-NOx combustion technology, that is, the combustion nozzle is changed into a low-NOx burner, which basically meets the emission standard of 30 mg/Nm3 of NOx in the exhaust gas. Low-NOx combustion technology to control the combustion temperature and oxygen content to achieve the purpose of inhibiting the production of NOx and control the value of NOx in the flue gas, in this case, will reduce the thermal efficiency of the system by about 5 ~ 10%, increasing the operating costs of the system. Take a 50t boiler as an example, after the low nitrogen combustion system, the boiler will consume nearly 3 million yuan more natural gas per year to produce the same steam, which is uneconomical, and also contrary to the current double carbon policy ("carbon peak, carbon neutral"). Reaction principle: Selective catalytic reduction (SCR) method, in which ammonia is used as a reducing agent in a reactor equipped with a catalyst to remove nitrogen oxides. The NOx in the flue gas generally consists of about 95% NO and 5% NO2 by volume. The denitrification reaction is converted to nitrogen and water vapor in the molecular state according to the following basic reactions The denitrification reactor (i.e. denitrification catalyst layer) is set between the boiler economizer and the air preheater. The inlet of the denitrification reactor is connected to the boiler economizer outlet via a flue, and the outlet is connected to the air preheater via a flue. The flue gas passes vertically through the denitration catalyst layer of the denitration reactor from top to bottom, at which time the flue gas temperature is about 280~420℃, which is the best reaction temperature for the denitration catalytic reduction reaction. Anhui Yuanchen Environmental Technology Co., Ltd ("Yuanchen Technology") is a high-tech enterprise integrating R&D, production and sales of dust bag and denitrification catalyst. The dust bags (mai...

If you want to achieve the reaction by denitrification catalyst, you need to consider other reaction requirements when operating, especially the very critical temperature, PH value, etc., and also the choice of oxides and reductants. Therefore, it is important to pay attention to different details in this regard, especially some precautions. The denitrification reaction in the industrial field is very important, and it has more types, for example, in the production of insulation pipe, its production process in this regard also includes this reaction, and for the galvanization reaction, there is also such a process, and for the water cycle reaction, there is also such a reaction, for this reason, we should pay attention to different concerns when using. Effect of water vapor For most flue gas SCR denitrification units in operation, condensation of water vapor should be avoided. Water condensation on the denitration catalyst can transfer toxic substances (alkali metals, calcium, magnesium) from the fly ash to the denitration catalyst, which can lead to deactivation of the denitration catalyst. In addition, it can harden the fly ash and clog the denitration catalyst, causing the performance of the soot blowing unit to deteriorate. The risk of poisoning in oil-fired boilers is higher, mainly due to the high content of water-soluble alkali metals. Poisoning can become severe if the boiler is burning biomass fuels, due to the high water-soluble K content in these fuels. Effect of fly ash Fly ash is a major cause of denitrification catalyst blockage. Small particles of fly ash are deposited in the pores of the denitrification catalyst, preventing NOx, and reaching the surface of the denitrification catalyst, thus causing the denitrification catalyst to deactivate. The fly ash also causes wear and tear of the denitration catalyst. The measures to reduce the clogging and wear of denitration catalyst are mainly. 1) Optimize the flow field design by using CFD computer numerical simulation and physical model test to adjust the airflow distribution in the SCR reactor to avoid low velocity areas or dead ends of flue gas flow. 2) Install soot blowers above each layer of denitrification catalysts to perform regular blowing of denitrification catalysts. (3) Select the appropriate flue gas velocity inside the denitration catalyst to ensure low flue gas resistance and low abrasion, but also to effectively use the flow of flue gas to avoid ash plugging. 4) Adopt top hardening technology for denitrification catalyst to improve the wear of denitrification catalyst. Effect of Sulfur and Ammonium Sulfate Sulfur and sulfur ammonium salts are another major cause of denitrification catalyst blockage. It is the main active component of SCR denitrification catalyst, but also promotes oxidation into. The system ejected below 250°C can easily form sulfur ammonium salts, which will not only block the denitrification catalyst pores and micropores, but also cause sticky fouling o...

It is also important to pay attention to the stability when choosing denitrification catalysts, while the characteristics of different chemical agents are different, such as physical properties, hot spots, melting points, electrical conductivity, etc., are different, and for chemical properties, they are also different. The coal used in China's thermal power plants is constrained by China's coal resources and fuel supply policies, and the quality of coal combustion is usually poor, and the content of harmful impurities such as ash and sulfur in coal combustion is generally high. Therefore, alkali metals, alkaline earth metals and arsenic in the fuel when using SCR denitration catalyst, as well as water vapor, fly ash, sulfur and ammonium sulfide produced after combustion all have an impact on the use of denitration catalyst. These components enter the active point of denitration catalyst by diffusion and occupy the active point of denitration catalyst, and the denitration catalyst will be gradually passivated, and the activity of denitration catalyst decreases with the operation time. NOx reduction efficiency decreases, ammonia consumption increases, ammonia escape increases, and SCR denitrification system operation cost will rise due to the influence of harmful elements. 1 Influence of alkali metals The contact between alkali metal and denitration catalyst surface will reduce the activity of denitration catalyst. The deposition of alkali metals on the denitration catalyst results in a much less acidic denitration catalyst surface and a stronger K neutralization effect for the same molar concentration of K compared to Na. K preferentially coordinates to either the OH root on the or, K20 is generated with the reaction and K interferes with the formation of NH4+, the ammonia active intermediate species, resulting in passivation of the denitration catalyst. Avoiding the condensation of water vapor on the surface of denitration catalyst reduces the effect on denitration catalyst activity due to the accumulation of alkali metals on the surface of denitration catalyst. 2 Effect of alkaline earth metals The poisoning of denitration catalyst by alkaline earth metals is mainly caused by the reaction generation of free CaO in fly ash and adsorbed on the surface of denitration catalyst, which causes scaling on the surface of denitration catalyst and can obscure the surface of denitration catalyst, thus preventing the diffusion of reactants into the denitration catalyst. By appropriately increasing the blowing frequency, the deposition of fly ash on the denitration catalyst can be reduced, and reducing the deposition of CaO on the surface of the denitration catalyst is an effective means to slow down the poisoning of the denitration catalyst 3 Effect of arsenic Arsenic (As) originates from coal and is present in the flue gas in volatile form dispersed into the denitration catalyst and solidified in the active and inactive regions, and also adsorbed on the fl...

The treatment of damaged dust bags is a very difficult problem. Due to the abolition of the dust bag surface has a large amount of dust, dust composition is complex, such as waste incineration industry using filter bags, the surface contains heavy metals, Ering and other toxic, harmful, corrosive substances. Chemical treatment method can also be applied to high-temperature cracking method. 2. High-temperature cracking method High-temperature cracking is the use of high temperature to make PTFE decomposition. This method is difficult to control the type of decomposition products, and also produces many toxic by-products. It requires high process equipment and parameter settings to recover the useful decomposition products and is generally discouraged. High-temperature cracking is less demanding on PTFE recycled material, either pure PTFE or filled with other materials can be recycled using high-temperature cracking. The factors that affect high temperature cracking are: temperature, pressure, time, atmosphere, feed rate, etc. The main reason is that the process is too complex and the investment is too large, while abroad there are many studies in this area, and some results have been put into industrial production: C.M. Simon et al. used fluidized bed pyrolysis of PTFE scrap to recover TFE, HFP, OFCB. The mass fraction of recovered material is up to 91% when the process parameters are fluidized bed temperature of 600°C and dwell time of 3s, and also the fillers in the waste, such as glass fiber, graphite, copper powder and other materials can be recovered) The most important feature of this system is that it can be operated continuously, and the system has been industrialized in Germany with a capacity of 400t/year of waste PTFE. www.yckjgf.com