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What is inertial dust removal equipment? How does it work?
The device that separates dust from airflow under the action of inertial force is called inertial dust removal device. The working principle of inertial dust removal equipment When a dust-containing airflow encounters an obstacle in front of it (such as a baffle), the gas bypasses the obstacle The particles continue to move forward due to inertia, colliding with obstacles and being trapped, thereby separating the two.
Generally speaking, the higher the air velocity of the inertial dust removal equipment, the larger the direction rotation angle, the more the number of direction changes, and the higher the purification efficiency. Therefore, increasing the air velocity or increasing the number of baffles can appropriately improve the capture efficiency, but at the same time the pressure loss will increase accordingly. Inertial dust collectors are generally suitable for the purification of metal or mineral dust with large density and large particle size, and can also remove mist droplets, but they are not suitable for the purification of adhesives and fiber dust. Due to the low purification efficiency, this type of dust collector is often used as a first-stage collector for multi-stage dust removal. 10 ~ 20 ° 11 coarse dust particles.
What is the structural form of inertial dust removal equipment?
Inertial dust removal equipment usually has the following two structural forms.
Collision Dust Removal Equipment This type of dust collector uses one or more baffles to block the flow of air and separate dust particles from the air; but maintains the integrity of the air without being divided. It has the characteristics of low resistance, but its efficiency is not high. There are two types of impact precipitator: baffle type and reverse type, as shown in the figure.
What is the commonly used inertial vacuum cleaner?
The design of inertial dust removal equipment is not much, and the choice is small. In practice, the following two types are often used.
Inertial dust removal equipment This dust collector belongs to the shutter type dust collector. The dust collector is very tightly connected to the ash bucket. Air leakage will greatly affect the dust removal efficiency.
The dust removal equipment consists of a cylinder and an ash discharge device. The inside of the cylinder contains a set of conical rings designed according to aerodynamic principles, whose diameter is slightly smaller than the diameter of the previous conical ring and arranged in a cone. Type 80 [Inertial dust collector has 7 types, including model 2, model 125, model 170, model 200, model 200 b, # 300, model 400. When the processing air volume is increased, multiple dust collectors can be used in parallel, and the number of parallel connections can reach 2 to 30.
What is the composition of the cyclone dust collector? How does it work?
The ordinary cyclone dust removal equipment consists of an inlet, a cylinder, a cone and a discharge pipe (inner cylinder 4).
The cyclone dust collector uses the centrifugal force generated during the rotation of the airflow to separate the dust from the dusty airflow. Dust-containing airflow enters the dust collector from the inlet of the dust collector in a tangential direction and moves downward along the outer wall. This downward rotating airflow is called external vortex. After the outer vortex reaches the bottom of the cone, it rotates upward, rotates upward along the axis, and finally discharges from the discharge pipe. This upward flow becomes an internal vortex. The direction of rotation of the downward external vortex and the upward internal vortex are the same, and Ie is unified as a timer or a reverse hand. When the airflow rotates, the dust is thrown to the outer wall under the effect of centrifugal force, and the dust that reaches the outer wall falls into the ash bucket along the wall under the combined effect of the downward rotating airflow and gravity (see Figure 3). What are the characteristics and scope of the cyclone dust collector? Compared with gravity sedimentation chamber and inertial dust collector, the cyclone dust collector has a simple structure, low cost, small size, high dust removal efficiency, no moving parts, and simple operation and management. Therefore, it is widely used.
Cyclone dust collector is generally only suitable for purifying non-fibrous and non-sticky dust and non-corrosive gases below 4001. When used to deal with corrosive gas, the dust collector should use anti-corrosion steel plate or spray anti-corrosive material on the inner wall.
When the body is used, cooling measures should be taken and materials with good abrasion resistance should be selected.
The inlet wind speed of the dust collector is generally 12? 20: 11/3. When the flow is unstable, it has a great impact on the dust removal efficiency and pressure loss. Because temperature is related to volume flow, it is not suitable for occasions with large temperature fluctuations. At the same time, a good air-tight dust removal device or other measures to prevent air leakage at the bottom should be used.
In addition, cyclone dust removal equipment is generally not suitable for serial use. If used in parallel, the air handling capacity of each dust removal equipment should be distributed as evenly as possible, so as not to cause cross-flow between the dust collectors and reduce the overall efficiency.
Related recommendation: Cyclone dust collector model
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