No matter what kind of industrial production and use process, most of the workshops and workshops will produce dust pollution to varying degrees, such as: chemical pharmaceutical factories, food processing, metallurgy, foundry, carbon materials, machinery processing, building materials and other industries. Especially in pharmaceutical production lines, tablet presses, granulators, mixers, ingredients, mixes, shakers, pulverizers, weighers, capsules, pre-treatment of traditional Chinese medicine and other pharmaceutical processes, the air is required to be very strict Dust removal purification. For pharmaceutical companies, there are materials with different properties that need to be dusted, and they should be divided and collected separately. For example, the dust collector in the toxic piece workshop is a separate system, which is separated from other dust removal equipment
in the pharmaceutical workshop
First, in the same pharmaceutical product production process, when the dust point of the simultaneous work is not very large, it is suitable to use the same workshop dust removal equipment system.
Second, when the dust types of different types of dust, if these dusts are mixed for recycling or the dust has no recycling value, a workshop dust removal equipment can also be set up.
Third, dust-containing gas with different temperature and humidity, when mixing may cause condensation in the air duct, separate workshop dust removal equipment
should be set up. Efficient dust removal equipment can improve the quality of products, material recycling is conducive to protecting the environment, turning waste into treasure, and improving economic efficiency. The dust removal equipment
(usually bag dust collector
and filter cartridge dust collector) in the workshop of the
pharmaceutical factory should pay attention to the following points when designing and installing the dust removal equipment: First, the air duct of the workshop dust equipment should be laid vertically or inclined as much as possible. . The angle with the horizontal plane is preferably greater than 45 degrees. If it is necessary to lay horizontally, a cleaning port is required to prevent dust from being deposited in the air duct.
Second, choose the proper wind speed in the duct of the dust removal equipment in the workshop . The wind speed in the duct will cause different degrees of wear to the equipment and the duct. If the wind speed is too small, dust will be deposited and the pipeline will be blocked. In order to prevent dust from accumulating and clogging in the pipeline, the wind speed in the pipeline must not be lower than the minimum air velocity listed in the table below.
Fourth, the exhaust point of the dust removal equipment in the workshop should not be too much, in order to balance the resistance between the branches. If there are too many exhaust points, a large-section collecting pipe can be used to connect the branches.
Fifth, the hydraulic balance required by the air duct of the workshop dust removal equipment is good. For hydraulic calculation of parallel pipes, the general ventilation system requires that the pressure loss difference between the two pipes does not exceed 15%, and the dust removal equipment requires that the pressure loss difference between the two pipes does not exceed 10% to ensure that the air volume of each pipe meets the design requirements.