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Summary of precautions before and after use of spray dryer

Technical Knowledge 2015-09-01 17:10:48
Before using the spray dryer, the staff needs to complete the relevant preparations in advance. First of all, the material to be sprayed is thoroughly emulsified and homogenized by a homogenizer and passed through an 80 mesh screen. This is to avoid the occurrence of atomizers and pipeline blockage in the later stage. And these materials should be placed in stainless steel buckets for use. In addition, a bucket of tap water is used to clean the atomizer and spray chamber of the spray dryer.

Next, the staff also needs to install the tube of the peristaltic pump, check and confirm the clamping. In addition, 8 sizes of nuts should be fastened in front of the feed port to prevent the air from being drawn in, and then put into the bucket for use. Next, check the spray dryer and related components.

During the inspection, on the one hand, it is necessary to confirm that the spray dryer is in good condition, on the other hand, it is necessary to check whether the butterfly valves on the pipes connected to the dehumidifier and the collecting tank are all open. In addition, it is necessary to confirm that the damper on the spray tower is fully open, the spray door is closed, the quick-fit clamps of each connecting pipe are installed correctly, the air compressor's air outlet valve is opened, the emptying valve is closed, and the air pressure pipe is connected. good.

After the work is completed, the staff also needs to clean the spray tower in time. During the cleaning process, you should pay attention to the installation process. First turn off the peristaltic pump and put off the water in the material tube. After two minutes, turn off the spray dryer atomizer, then press the emergency stop button to shut down and turn off the control cabinet. Air relay. Then talk about the inner wall of the nebulizer.

After the above operations are completed, the spray dryer related accessories should also be cleaned. In order to facilitate the cleaning, it is also necessary to disassemble the 2 cutting tubes connected by the cyclone separator, and also include the outlet butterfly valve, the collector, the clamp, the silica gel gasket, etc., all of which are cleaned and then controlled to dry water.

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