Welcome to SDCAD Official Website! Email:admin@cementsilo.top
头部邮箱+阿里巴巴
Time
of issue:2021-03-05 15:21:05
Welcome to SDCAD Official Website! Email:admin@sdcadi.com Tel/WhatsApp:+86 15853809259
Certificated by CE ISO
Language EN ES
Cyclone Dust Collector
Description
Brief introduction
Cyclone dust collectors began to be used in 1885 and have developed into various forms. According to the airflow entry mode, it can be divided into two types: tangential entry type and axial entry type. Under the same pressure loss, the latter can handle about three times as much gas as the former, and the gas flow distribution is uniform.
The cyclone dust collector is composed of an intake pipe, an exhaust pipe, a cylinder, a cone, and an ash hopper. Cyclone dust collectors have a simple structure, are easy to manufacture, install, maintain, and manage, and have low equipment investment and operating costs. They have been widely used to separate solid and liquid particles from air streams, or to separate solid particles from liquids. Under normal operating conditions, the centrifugal force acting on particles is 5 to 2500 times that of gravity, so the efficiency of cyclone dust collectors is significantly higher than that of gravity settling chambers. Based on this principle, a cyclone dust removal device with a dust removal efficiency of over 90% has been successfully developed. Among mechanical dust collectors, cyclone dust collectors have the highest efficiency. It is suitable for the removal of non viscous and non fibrous dust, mostly used to remove 5% μ For particles above m, a parallel multi tube cyclone dust collector device pairs 3 μ M particles also have a dust removal efficiency of 80-85%. Cyclone dust collectors constructed of special metal or ceramic materials that are resistant to high temperature, abrasion, and corrosion can be used at temperatures up to 1000 ℃ and pressures up to 500 × Operate at 105 Pa. Considering the technical and economic aspects, the pressure loss control range of cyclone dust collectors is generally 500~2000 Pa. Therefore, it belongs to a medium efficiency dust remover and can be used for the purification of high-temperature flue gas. It is a widely used dust remover, mainly used for boiler flue gas dust removal, multi-level dust removal, and pre dust removal. Its main disadvantage is that it is sensitive to fine dust particles (<5 μ m) The removal efficiency of is relatively low.
advantage
According to the method of integrating the axial velocity with the flow area described above, the variation of the falling flow rate after installing different types of drag reduction rods in a conventional cyclone dust collector is calculated together, and the percentage of the total processing flow rate of the falling flow dust collector at different cross sections under various conditions is plotted to indicate the average value of the flow rate in the upstream and downstream flow zones, i.e. the difference between the falling flow rate and the actual flow rate in the downstream flow zone. It can be seen that the short circuit flow and falling flow of each model vary along the height of the dust collector. Compared to conventional cyclones, installing full length drag reduction rods 1 # and 4 # increases the short-circuit flow rate, but installing non full length drag reduction rods H1 and H2 decreases the short-circuit flow rate. After installation of 1 # and 4 #, the variation rule of the descending flow rate along the process is basically the same as that of conventional cyclone dust collectors, showing a linear distribution, with three lines falling in parallel. However, after installing H1 and H2, the distribution assumes a broken line rather than a straight line, and its inflection point is exactly the section position where the drag reduction rod is inserted from the bottom to the top. From this, it can also be seen that the non full length drag reduction rod increases the downward flow rate extending to each section above the section, which is larger than that of a conventional dust collector. However, after contacting the drag reduction rod, the downward flow rate decreases rapidly, reaching or lower than the amount value of a conventional dust collector at the bottom of the cone.
Reducing the short-circuit flow rate can improve the dust removal efficiency, increase the downward flow rate of the cross-section, and increase the residence time of dust containing air in the dust collector, creating more opportunities for dust separation. Therefore, although the drag reduction effect of the non full length drag reduction rod is not as good as that of the full length drag reduction rod, it is more conducive to improving the dust removal efficiency of the cyclone dust collector. There is a short circuit flow rate of up to 24% near the inlet section of the exhaust core tube of a conventional cyclone dust collector, which will seriously affect the overall dust removal effect. How to reduce this short circuit flow will be a research direction to improve efficiency. Although the drag reduction effect of non full length drag reduction rods is not as good as that of full length drag reduction rods, it will have more practical significance because it reduces the short circuit flow rate of conventional cyclone dust collectors, increases the cross-sectional drop flow rate, and improves the dust removal efficiency of cyclone dust collectors.
classification
① High efficiency cyclone dust collector, with a smaller cylinder diameter, is used to separate finer dust, with a dust removal efficiency of over 95%;
② Large flow cyclone dust collector with large cylinder diameter is used to handle large gas flow, and its dust removal efficiency is above 50-80%;
③ General purpose cyclone dust collector with moderate processing air volume, and dust removal efficiency fluctuates between 70-85% due to different structural forms,
④ Explosion-proof cyclone dust collector with explosion-proof valve has explosion-proof function.
According to the structural form, it can be divided into long cone, cylinder, diffusion type, and bypass type.
According to combination and installation, it is divided into internal cyclone dust collectors, external cyclone dust collectors, vertical and horizontal cyclone dust collectors, and single cylinder and multi tube cyclone dust collectors.
According to the air flow introduction situation, the flow path path of the air flow after entering the cyclone dust removal, and the form of secondary air can be summarized into the following two types:
① Tangential and reverse flow cyclone
Cyclone dust collectors began to be used in 1885 and have developed into various forms. According to the airflow entry mode, it can be divided into two types: tangential entry type and axial entry type. Under the same pressure loss, the latter can handle about three times as much gas as the former, and the gas flow distribution is uniform.
The cyclone dust collector is composed of an intake pipe, an exhaust pipe, a cylinder, a cone, and an ash hopper. Cyclone dust collectors have a simple structure, are easy to manufacture, install, maintain, and manage, and have low equipment investment and operating costs. They have been widely used to separate solid and liquid particles from air streams, or to separate solid particles from liquids. Under normal operating conditions, the centrifugal force acting on particles is 5 to 2500 times that of gravity, so the efficiency of cyclone dust collectors is significantly higher than that of gravity settling chambers. Based on this principle, a cyclone dust removal device with a dust removal efficiency of over 90% has been successfully developed. Among mechanical dust collectors, cyclone dust collectors have the highest efficiency. It is suitable for the removal of non viscous and non fibrous dust, mostly used to remove 5% μ For particles above m, a parallel multi tube cyclone dust collector device pairs 3 μ M particles also have a dust removal efficiency of 80-85%. Cyclone dust collectors constructed of special metal or ceramic materials that are resistant to high temperature, abrasion, and corrosion can be used at temperatures up to 1000 ℃ and pressures up to 500 × Operate at 105 Pa. Considering the technical and economic aspects, the pressure loss control range of cyclone dust collectors is generally 500~2000 Pa. Therefore, it belongs to a medium efficiency dust remover and can be used for the purification of high-temperature flue gas. It is a widely used dust remover, mainly used for boiler flue gas dust removal, multi-level dust removal, and pre dust removal. Its main disadvantage is that it is sensitive to fine dust particles (<5 μ m) The removal efficiency of is relatively low.
advantage
According to the method of integrating the axial velocity with the flow area described above, the variation of the falling flow rate after installing different types of drag reduction rods in a conventional cyclone dust collector is calculated together, and the percentage of the total processing flow rate of the falling flow dust collector at different cross sections under various conditions is plotted to indicate the average value of the flow rate in the upstream and downstream flow zones, i.e. the difference between the falling flow rate and the actual flow rate in the downstream flow zone. It can be seen that the short circuit flow and falling flow of each model vary along the height of the dust collector. Compared to conventional cyclones, installing full length drag reduction rods 1 # and 4 # increases the short-circuit flow rate, but installing non full length drag reduction rods H1 and H2 decreases the short-circuit flow rate. After installation of 1 # and 4 #, the variation rule of the descending flow rate along the process is basically the same as that of conventional cyclone dust collectors, showing a linear distribution, with three lines falling in parallel. However, after installing H1 and H2, the distribution assumes a broken line rather than a straight line, and its inflection point is exactly the section position where the drag reduction rod is inserted from the bottom to the top. From this, it can also be seen that the non full length drag reduction rod increases the downward flow rate extending to each section above the section, which is larger than that of a conventional dust collector. However, after contacting the drag reduction rod, the downward flow rate decreases rapidly, reaching or lower than the amount value of a conventional dust collector at the bottom of the cone.
Reducing the short-circuit flow rate can improve the dust removal efficiency, increase the downward flow rate of the cross-section, and increase the residence time of dust containing air in the dust collector, creating more opportunities for dust separation. Therefore, although the drag reduction effect of the non full length drag reduction rod is not as good as that of the full length drag reduction rod, it is more conducive to improving the dust removal efficiency of the cyclone dust collector. There is a short circuit flow rate of up to 24% near the inlet section of the exhaust core tube of a conventional cyclone dust collector, which will seriously affect the overall dust removal effect. How to reduce this short circuit flow will be a research direction to improve efficiency. Although the drag reduction effect of non full length drag reduction rods is not as good as that of full length drag reduction rods, it will have more practical significance because it reduces the short circuit flow rate of conventional cyclone dust collectors, increases the cross-sectional drop flow rate, and improves the dust removal efficiency of cyclone dust collectors.
classification
① High efficiency cyclone dust collector, with a smaller cylinder diameter, is used to separate finer dust, with a dust removal efficiency of over 95%;
② Large flow cyclone dust collector with large cylinder diameter is used to handle large gas flow, and its dust removal efficiency is above 50-80%;
③ General purpose cyclone dust collector with moderate processing air volume, and dust removal efficiency fluctuates between 70-85% due to different structural forms,
④ Explosion-proof cyclone dust collector with explosion-proof valve has explosion-proof function.
According to the structural form, it can be divided into long cone, cylinder, diffusion type, and bypass type.
According to combination and installation, it is divided into internal cyclone dust collectors, external cyclone dust collectors, vertical and horizontal cyclone dust collectors, and single cylinder and multi tube cyclone dust collectors.
According to the air flow introduction situation, the flow path path of the air flow after entering the cyclone dust removal, and the form of secondary air can be summarized into the following two types:
① Tangential and reverse flow cyclone
Previous
Industry Dust Collector
Next
最后一页
On Line CT
微信号:123123123
手机扫一扫联系我们
手机扫一扫加入我们
Advisory
在线客服
Social Media
Page Copyright: SHANDONG CAD INDUSTRY MACHINERY EQUIPMENT CO. LTD.