The CLT type cyclone dust collector is composed of three parts: a cyclone cylinder, an ash collection hopper, and a volute (or air collection cap). According to the number of cylinders, the CLT type cyclone dust collector can be divided into five combinations: single cylinder, double cylinder, triple cylinder, and six cylinder CLT/A type cyclone dust collectors. Each combination has two types of air outlet: Type I horizontal air outlet and Type II (upper air outlet). For Type I twin tube combination, there are two types of combinations: center inlet and outlet air and side inlet and outlet air. Type I single tube CLT/A cyclone dust collector and three tube cyclone dust collector only have side outlet air, while four tube and six tube combinations only have center inlet and outlet air. For various combinations of Type II, any of the above Type I inlet positions can be used. CLT/A cyclone dust collector has the characteristics of low resistance, high dust removal efficiency, large processing air volume, stable performance, small footprint, simple structure, practicality and low cost. Suitable for coarse and intermediate dust purification in various mechanical processing, metallurgical building materials, and mining operations.
Technical Description of CLT Cyclone Dust Collector:
1. After the dust collector is manufactured, it should be coated with red lead anti rust paint both inside and outside, and then coated with gray lead oil on the outer surface for corrosion prevention. When there are special requirements in the engineering design, anti-corrosion treatment should be carried out according to the design requirements.
2. When assembling the dust collector, flange gaskets should be selected according to different working gas temperatures. It is recommended to use asbestos gaskets when the temperature is above 60 ℃, and rubber gaskets can also be used when the temperature is ≤ 60 ℃.
3. The dust collector requires airtightness and no air leakage. After assembly, a gas test of no less than 300 millimeters of water column (gauge pressure) should be conducted.
The dust outside the cyclone dust collector is subjected to two forces in the radial direction simultaneously. One is the centrifugal force generated by the tangential velocity of the rotating airflow, which causes the dust to be pushed outward; The other is the centripetal force generated by the radial velocity of the rotating airflow, which causes the dust to be pushed inward. At the interface between the inner and outer vortices, if the centrifugal force generated by tangential velocity is greater than the centripetal force generated by radial velocity, the dust will move towards the outer wall under the push of inertial centrifugal force and be separated; If the centrifugal force generated by tangential velocity is less than the centripetal force generated by radial velocity, the dust will enter the inner vortex under the push of centripetal force and be discharged through the exhaust duct. If the centrifugal force generated by tangential velocity is equal to the centripetal force generated by radial velocity, that is, the external force acting on dust particles is zero. In theory.
Dust should continuously rotate at the interface. In fact, due to the turbulent airflow and various random factors, dust in this state has a 50% chance of entering the inner vortex and a 50% chance of moving towards the outer wall. The dust removal efficiency should be 50%. The critical dust particles separated at this time are called the segmented particle size. At this point, the interface between the inner and outer vortices is like a sieve with a divided particle size. Dust larger than the divided particle size is intercepted and captured by the sieve, while dust smaller than the divided particle size is discharged from the exhaust pipe through the sieve. The smaller the particle size of the dust captured by the cyclone dust collector, the higher the dust removal efficiency of the dust collector. The magnitude of centrifugal force is related to dust particles, and the larger the particles, the greater the centrifugal force they are subjected to. When the particle size and tangential velocity of dust are larger, and the radial velocity and exhaust pipe diameter are smaller, the dust removal effect is better. The ash concentration in the gas is also a key factor affecting the outlet concentration. When the dust concentration increases, the dust tends to agglomerate, causing smaller dust particles to agglomerate and be captured. At the same time, larger particles will also be carried to the wall or separated by impact during their movement towards the wall. However, due to the high-speed downward rotation of the airflow inside the dust collector, the pressure at its top decreases. Some of the airflow also carries small dust particles and rotates upward along the outer wall to reach the top, and then rotates downward along the outer wall of the exhaust pipe to be discharged through the exhaust pipe, resulting in the dust removal efficiency of the cyclone dust collector being impossible to be *.
Because the dust removal efficiency of a cyclone dust collector cannot be *, when the inflow of imported dust increases, although the dust removal efficiency improves, the amount of dust discharged from the exhaust pipe will also greatly increase. So, to reduce the dust concentration at the discharge outlet, it is necessary to lower the dust concentration at the inlet. A multi-stage dust removal method using multiple cyclone dust collectors in series can be adopted to achieve the goal of reducing emissions.