Raw Material Sampling Dispensing Booth Design in Pharmaceutical Industry

Raw Material Sampling Dispensing Booth Design in Pharmaceutical Industry

1. Dispensing booth design Features and uses

Dispensing booth in pharmaceutical industry is a kind of local purification equipment for pharmaceutical, microbial research and scientific experiments, which provides a vertical unidirectional air flow, some clean air circulates in the working area, and some is discharged to the nearby area, so that the working area produces negative pressure, prevents cross-contamination, and is used to ensure the high cleanliness environment of the working area.

Weighing and packaging dust and reagents in the sampling dispensing booth can control the spill and rise of dust and reagents, prevent the inhalation of dust and reagents to the human body, but also avoid the cross pollution of dust and reagents, and protect the safety of the external environment and indoor personnel.

The weighing booth operation area is protected by thousand-level vertical laminar flow ISO 6 (NF, EN, ISO 14644-1).

2. Weighing room in laboratory Use environment and conditions

Temperature: 5℃~40℃

Relative humidity: ≤ 85% (no condensation)

Atmospheric pressure: 86kPa~106kPa

Power supply: AC 220V, single phase, 50Hz

3. Structural characteristics and working principle

1. Structural characteristics

The dispensing booth pharmaceutical industries is composed of a working area, a return air box, a fan box, an outlet air box and an outer box. The control panel is located in the front of the working area inside the powder dispensing booth. The control panel adopts the light-touch LED control panel, which can control the start and stop of the fan, adjust the working condition of the fan, and adjust the wind speed required by the working area. There is a pressure difference meter beside it, and the resistance of the filter is tested. There is an exhaust air adjustment plate inside the air supply box, which can adjust the exhaust air volume of the sampling dispensing booth within a reasonable range. Raw material sampling booth is 304 stainless steel.

2. Dispensing booth design Working principle

The dispensing booth in pharmaceutical industry adopts vertical unidirectional air flow form, and the return air must be pre-filtered through the primary effect filter to dispose of the large particles of dust in the air flow. After the pretreatment of the air, and then through the medium effect filter for secondary filtration, in order to fully protect the role of the high efficiency filter. Under the pressure provided by the centrifugal fan, the high efficiency filter is passed to make it meet the cleanliness requirements. The clean air is sent to the body of the bellows, 90% through the uniform flow air supply network plate, forming a uniform vertical air supply air, 10% through the air volume adjustment plate, discharge from sampling dispensing booth.

All air flow is treated by high efficiency filter, so the supply air and exhaust air are free of residual dust, avoiding secondary pollution. Due to the formation of a stable unidirectional flow in the working area, the dust emitted in this area will be caught by the primary and middle effect filters along with the air flow under the influence of the unidirectional air flow. The raw material sampling booth is equipped with 10% exhaust air, thus forming a negative pressure relative to the external environment, which ensures that the dust in this area will not spread to the outside to a certain extent, and plays a role in protecting the external environment.