喷砂房适应于一些大型工件表面清理、除锈，增加工件与涂层之间的附着力等效果，它在使用时局部抽风是什么原理？以下是小编的整理：

The sandblasting room is suitable for surface cleaning and rust removal of some large workpieces, increasing the adhesion between the workpiece and the coating, and other effects. What is the principle of local ventilation when it is used? The following is the editor's organization:

喷砂房设置了局部通风。喷砂房工人户外作业喷砂是在密闭的房间内进行的，抽风量的确定是基于喷砂时可以吸走灰尘，看清楚零件表面的原理。风量一般可根据喷砂房，室内横截面积风速0.3- 0.7 m/s计算，横截面积根据气流方向确定。截面风速的选择应考虑喷砂房，紧密度、喷嘴尺寸和喷砂室尺寸等因素。

The sandblasting room is equipped with local ventilation. Outdoor sandblasting is carried out by sandblasting room workers in a closed room, and the determination of ventilation volume is based on the principle of being able to absorb dust and see the surface of parts clearly during sandblasting. The air volume can generally be calculated based on the sandblasting room, and the indoor cross-sectional area wind speed is 0.3-0.7 m/s. The cross-sectional area is determined based on the direction of the airflow. The selection of cross-sectional wind speed should consider factors such as sandblasting room, tightness, nozzle size, and sandblasting room size.

从喷砂房提取的粉尘需要经过除尘净化后才能排放到大气中。避免除尘不当和含尘气体进入本车间其他车间造成环境污染。抛光抛光机局部通风：金属零件在抛光抛光过程中会产生大量的金属粉尘和纤维粉尘，因此需要设置局部通风来消除。在排入大气之前，需要除尘净化。

The dust extracted from the sandblasting room needs to undergo dust removal and purification before it can be discharged into the atmosphere. Avoid improper dust removal and the entry of dusty gases into other workshops in this workshop, causing environmental pollution. Polishing and polishing machine local ventilation: During the polishing and polishing process of metal parts, a large amount of metal dust and fiber dust will be generated, so local ventilation needs to be set up to eliminate it. Before being discharged into the atmosphere, dust removal and purification are required.

喷砂房零件的喷漆一般在喷漆室进行，需要一个带水淋过滤器或干式过滤器的局部排气装置，以防止漆雾从工作孔口逸出到室内。小零件除锈喷漆可在工作台或局部通风的通风柜内进行，通风量按进风工作孔口截面风速0.1m/秒计算。

The painting of parts in the sandblasting room is generally carried out in the painting room, and a local exhaust device with a water spray filter or dry filter is required to prevent paint mist from escaping from the working orifice into the room. The rust removal and painting of small parts can be carried out on the workbench or in a locally ventilated ventilation cabinet, and the ventilation rate is calculated based on the cross-sectional wind speed of 0.1m/s at the inlet of the working hole.

安装在喷砂房的喷嘴机械手可以对零件表面进行自动喷砂，自动喷砂难以到达的区域可以通过手动喷砂完成。

The nozzle robotic arm installed in the sandblasting room can automatically sandblasting the surface of parts, and areas difficult to reach by automatic sandblasting can be completed through manual sandblasting.

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