Safe operating procedures for feed mill boilers

1. The boiler belongs to the pressure vessel. The furnace worker must be familiar with the “Trial Regulations for Steam Boiler and Pressure Vessels” promulgated by the State, and strictly implement the regulations on the management of boiler and pressure vessels. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

2, the boiler must be managed by a special person, used by a special person, with a certificate to be employed, and listed on the date; during the work, there must be someone who has a fire, and the person is gone. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

3. The boiler should be inspected thoroughly before operation to ensure that the running parts (such as motors, pumps, bearings, etc.) are flexible, and the lubricating parts are added to the operating parts; static parts (such as barometers, water level gauges, safety valves, hand holes, etc.) The work is normal; the valves are open and closed tightly. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

4. Check the high and low water level and steam pressure automatic alarm sensitivity every shift; the flushing water level meter is 1-2 times per shift; the normal water level of the boiler should be between the highest and lowest positions of the water level gauge; the water level of the two water level gauges should be basically Consistent; Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

5. Check the pressure gauge once every shift, and rinse the pressure gauge elbow once every three days to ensure the smooth inside of the pipeline. Manually operate two safety valves to exhaust steam once a week, and pressurize two safety valves to automatically exhaust steam every month to prevent safety accidents caused by valve seat adhesion; keep the pressure in the furnace stable, and the maximum pressure should not exceed the allowable working pressure of the safety valve. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

6. Regular sewage discharge, one discharge per shift, high water level and low load when discharging sewage; and timely descaling according to the scale of the drum and hand hole. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

7. Check the manhole, hand hole, other pressure parts and economizer, superheater and other airtight conditions at any time, and find that the leakage and deformation are immediately corrected; check whether the indicator lights on the control panel are normal. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

8, the furnace temperature takes ten to twelve hours to produce pressure. Starting from a small fire, gradually increase the firepower; the new furnace (referring to the new repair of the furnace wall and the newly installed boiler) can produce pressure after three to seven days of temperature. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

9. Perform boiler water quality testing once a day; the alkalinity of the boiler should be 6-24mmol/L; the solid dissolved matter should be less than 3500mg/L; the hardness of feed water should not be higher than 0.03mmol/L. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

10. The boiler water must be treated with water. The water treatment should follow the working procedures of “countercurrent, regeneration, washing and running”. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

11. After the salt pump is deactivated, clean the residual brine in the pump with clean water. In the winter, the internal water should be discharged, and the antifreeze work should be done at the same time. Af6 China Feed Industry Information Network - based on feed, serving animal husbandry

Roller Shutter Door

Roller shutter door , also known as "shutter door", lots of panel pieces connected together, fixed in the guide rail , take above reel as the center of rotation.


Roller shutter door is used for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or residential.Electric roller shutter door, especially for large openings, inconvenient to install the ground door , quick opening effect. Such as for the garage door, shopping mall fire shutter door.


Opening methods: Handing driving mode

Rope driving mode

Remote control driving mode

Electric switch driving mode

Roller Shutter Door,Galvanized Roller Shutter Door,Aluminum Roller Shutter Door,Transparent Roller Shutter Door

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfautodoors.com