The spray granulation dryer is an important spray granulation dryer in the PTC thermal ceramic production process. The spray granulation dryer has a high price, complex composition, and is difficult to use and maintain. The good operation of the spray granulation dryer not only ensures the normal production of the PTC thermal ceramics, but also prolongs the service life of the spray granulation dryer and reduces the production of the boiling granulation dryer. Therefore, the spray granulation dryer Proper operation and enhanced maintenance are necessary.
1 Daily operation and precautions
In the daily production process, the necessary preparations should be carried out before starting the spray granulation dryer. First check the joints of the bearing and sealing parts of each device for looseness, the condition of the lubricating oil of each mechanical component and whether the water, wind and slurry valve ports are in the required position. Then turn on the power supply to check the boiling granulator to check whether the voltage and the meter are normal. Finally, check the amount and concentration of the slurry in the slurry mixing tank. If there is any problem, it should be eliminated in time.
Then, the blower and the exhaust fan are sequentially turned on, and then the heating switch is turned on to start the temperature rise. When the outlet temperature reaches the set temperature (generally around 130 °C), start the material pump and dust removal system. When the pump pressure reaches 2 MPa, the spray gun is turned on to start granulation. After the spray granulation dryer is operated, the atomization situation and the working condition of the boiling granulating dryer pump should be observed in time. If the boiling granulation dryer appears to block the gun phenomenon, the nozzle should be cleaned or replaced immediately.
After the normal operation of the spray granulation dryer, it is also necessary to regularly collect materials, regularly check the operation of each system, record the process parameters, and pay attention to clean the vibration filter screen.
At the end of the granulation, the boiling granulating dryer should be turned off first to stop the heating device and stop the gas engine operation. Then close the gun valve, replace the gun, unscrew the nozzle and rinse. When the inlet temperature is reduced below 100 °C, the operation of the blower and the blower can be stopped. Then, the remaining materials in the drying tower and the precipitator are cleaned, the dust remover and the air hammer boiling granulating dryer are closed, and finally the source of the total electric boiling granulating dryer is closed to complete the production operation.
In the event of an emergency, the spray granulation dryer must be shut down immediately. The blower and feed pump should be shut down first. If there is a sudden power outage, the gas engine should be pulled out to cool the tower naturally, then the drain valve is opened, the slurry in the slurry pipeline is drained, and the spray granulation dryer is cleaned.
3 maintenance and maintenance
Granulation is an important part of the PTC production process. Maintaining the normal operation of the spray granulation dryer is a necessary condition for ensuring the stability of the PTC production boiling granulation dryer. Regular cleaning, maintenance and maintenance help to identify problems in a timely manner, resolve potential failures, reduce downtime, and ensure normal production stability.
Spray granulation dryers run for a long time or due to improper operation, aggregates will appear in some spray granulation dryers and affect normal operation. At this time, it is necessary to stop working for cleaning. For the cleaning of the aggregate in the drying tower, the cleaning door should be opened, the funnel-shaped bottom aggregate should be removed with a long broom, the discharge valve should be opened, and the boiling granulation dryer tower should be flushed with tap water. The removal of dust in the cyclone boiling granulating dryer also requires opening the cyclone, sweeping the aggregate with a broom and, if necessary, flushing with water. For the cleaning of the bag type boiling granulation drying machine, the control switch should be opened, the tapping should be continued, then the cleaning door should be opened, the bag dusting and boiling granulating drying machine should be beaten, and finally the filter bag boiling granulating dryer should be replaced. For the cleaning of the slurry pipeline system, the sewage valve of the two-way filter should be opened, the filter boiling and granulating dryer filter screen and pipeline should be cleaned, then the material pump should be opened, the water pump should be replaced, the pump tube and the pressure regulation package should be cleaned. pipeline.
After a period of time (usually about 600h), it is necessary to inspect and maintain the spray granulation dryer into the boiling granulating dryer. For the feeding system, check the filter, pipe, valve, nozzle, etc. to see if there is any blockage, regular cleaning, check the nozzle wear of the boiling granulator dryer and replace it when boiling the granulator. The material pump should be checked for oil leakage, whether the pressure is normal, and whether the oil level is normal. For the boiling granulating dryer in the fan, it should be checked whether the shaft and the bearing are short of oil and heat, whether there is vibration or noise, etc. The boiling granulating dryer cleans the blades when necessary and makes a flat boiling granulator dryer to check the wind. For the heater, check whether the hot boiling granulating dryer pipe is normal, and if necessary, clean the filter of the oil pipe, oil pump and grease nipple. In addition, you should also pay attention to whether the motor has heat, vibration, abnormal sound, etc., whether the instrument and electrical appliances of the control cabinet work normally.
In addition, in the spray granulation dryer operation of about 2 400h (generally during the shutdown of the boiling granulating dryer), the spray granulation dryer should be partially disassembled and maintained by maintenance personnel.
Tattoo Machine is a hand-held device generally used to create a tattoo, a permanent marking of the skin
with indelible ink. Modern tattoo machines use electromagnetic coils to move an armature bar up and down,
Connected to said armature bar is a barred needle grouping that pushes ink into the skin. Tattoo artists generally
use the term "machine", or even "iron", to refer to their equipment. The word "gun" is often used but many
tattoo professionals dislike it. Then there are the Tattoo machines which are available at the numerous Tattoo
Supplies stores. These are also known as Tattoo Guns. There is a vast selection of stylish tattoo guns which are
made out of Iron, Copper steel and Top carbon steel and they are designed for lines and shading of the intricate
design on the Tattoo. Then you get the Tattoo Needles of different sizes and shapes enclosed in individual
envelopes.They carry nearly everything a tattoo operation demands or even needs as well at truly competitive prices
for quality items.
Handmade Tattoo Machine, Handmade Rotary Tattoo Machine, Handmade Carbon Steel Tattoo Machine
Redtop Tattoo Supply Co., Limited , http://www.redtop-tattoo.com