XLP cyclone dust collector

The operating parameters of the XLP cyclone dust collector mainly include: the inlet airflow velocity of the dust collector, the temperature of the treated gas, and the inlet mass concentration of the dusty gas.
1) Inlet airflow velocity. For a cyclone dust collector with a certain size, increasing the inlet airflow velocity not only increases the processing capacity but also effectively improves the separation efficiency, but also increases the pressure drop. When the inlet airflow velocity increases to a certain value, the separation efficiency may decrease, wear may worsen, and the service life of the dust collector may be shortened. Therefore, the inlet airflow velocity should be controlled within the range of 18-23m/s.
2) Process the temperature of the gas. Due to the increase in gas temperature and viscosity, the centripetal force on dust particles increases, resulting in a decrease in separation efficiency. Therefore, dust collectors operating under high temperature conditions should have a larger inlet airflow velocity and a smaller cross-sectional flow velocity.
3) The inlet mass concentration of dusty gas. When the concentration is high, large particles of dust have a significant carrying effect on small particles of dust, resulting in improved separation efficiency.
Prevent air leakage
Once the cyclone dust collector leaks air, it will seriously affect the dust removal effect. It is estimated that when there is a 1% air leakage at the lower cone of the dust collector, the dust removal efficiency will decrease by 5%; When there is a 5% air leakage, the dust removal efficiency will decrease by 30%. There are three types of air leakage in a cyclone dust collector: the inlet and outlet connection flanges, the dust collector body, and the ash discharge device. The reasons for air leakage are as follows:
1) The air leakage at the connection flange is mainly caused by loose bolts, uneven thickness of gaskets, and uneven flange surfaces.
2) The main cause of air leakage in the dust collector body is wear, especially the lower cone. According to usage experience, when the dust concentration in the gas exceeds 10g/m3, a 3mm steel plate can be worn out in less than 100 days.
3) The main reason for air leakage in the ash unloading device is poor sealing of the mechanical automatic (such as heavy hammer) ash unloading valve.
Prevent wear and tear of critical parts
The factors that affect the wear of key parts include load, airflow velocity, and dust particles. The worn parts include the shell, cone, and dust outlet. The technical measures to prevent wear and tear include:
1) Prevent blockage of the dust outlet. The main method is to select the ash discharge valve and strengthen the adjustment and maintenance of the ash discharge valve during use.
2) Prevent excessive gas from flowing back into the ash discharge outlet. The ash discharge valve used should be tight and properly balanced.
3) Regularly check whether the dust collector leaks due to wear and tear, in order to take timely measures to eliminate it.
4) At the site of dust particle impact, use replaceable wear-resistant plates or add wear-resistant layers.
5) Minimize welding seams and joints as much as possible, and any welding seams should be ground flat. The inner diameter of the flange stop and gasket should be the same and maintain good alignment.
6) The tangential velocity of the airflow at the wall of the dust collector and the inlet airflow velocity should be kept within the critical range.
Avoid dust blockage and accumulation
The blockage and dust accumulation of cyclone dust collectors mainly occur near the dust outlet, followed by the intake and exhaust pipes.
1) Blockage of dust outlet and preventive measures. There are usually two reasons for the blockage of the dust outlet: one is that large pieces of material or debris (such as shavings, wood chips, plastic bags, shredded paper, torn cloth, etc.) remain in the dust outlet, and then dust accumulates around it; The second reason is that there is too much dust accumulation in the ash hopper, which cannot be discharged in a timely manner. The measures to prevent blockage of the dust outlet include adding a mesh at the suction port; Add a hand hole on the upper part of the dust outlet (cover with gasket and apply sealant).
2) Blockage of intake and exhaust ports and its preventive measures. The phenomenon of blockage in the intake and exhaust ports is often caused by improper design - slight roughness, right angles, and oblique angles in the intake and exhaust ports can lead to dust adhesion, thickening, and eventually blockage.