Details to Consider When Insulating Dust Collectors

Why Insulate: Insulation in dust collectors, pipelines, and equipment deployments is aimed at protecting the dust collection equipment. The objective is to prevent condensation and dew formation in the system, which can cause corrosion of materials and clumping of dust, leading to difficulties in dust removal, excessive pressure loss, and even forcing the baghouse dust collector to stop operating. Additionally, insulation serves as thermal and sound insulation, preventing the dust collection system from affecting and disturbing the external environment.

Correct Practices for Insulation:

1.The insulation layer thickness of baghouse dust collectors should be 100mm, with 50mm on each reinforcing rib. High-temperature glass wool (TYPE1000, δ=50) should be used as the insulation material, with a double-layer layout in the thickness direction. The layers should be staggered, with an interval not less than one-third of the length or width of the board. Joints should be tightly aligned, and the outer layer of high-temperature glass wool should be covered with galvanized hexagonal iron, secured with self-locking washers. A steel plate mesh should be laid at the bottom of the ash hopper of pulse jet baghouse dust collectors, secured with self-locking washers.

2.Insulation should be waterproof, fireproof, and the surface should be flat and neat, without affecting the use of dust removal accessories.

3.The insulation layout requires the deployment of self-locking washers at a rate of no less than 8 per square meter, with a spacing of 200mm for pop rivets. This layout is suitable for any climatic condition, hence the installation of outer shell protection plates is beneficial for drainage and prevents damage to the dust removal bags. The requirement for self-locking washers deployment is no less than 8 per square meter, with a spacing of 200mm for pop rivets.

4.Insulation surface joints should be staggered, with no voids between layers and seams, and the insulation density should ensure that it does not collapse during long-term operation. High-temperature glass wool with a density of 32kg per cubic meter should be used as the insulation material.

5.The insulation material must meet the insulation performance requirements. After insulation, strict adherence to dust collector design specifications and careful design of accessories is essential. For example, when designing ash hopper components, it is necessary to consider the angle of repose of the dust and design an ash hopper that can naturally discharge dust based on this characteristic. Additionally, insulation design is also required for smoke and dust conveying pipelines, which plays a crucial role in dust removal efficiency and should be tailored according to the properties of the dust.

For further inquiries, feel free to contact Shanghai Sffiltech Co., Ltd.