Demetdent announced the release of the our company`s wet/dry milling machine. It was added to the Demetdent family of dental milling devices in answer to our lab and dental users need for a wet-milling option to handle many of the new brands and materials. The wet/dry milling machine fills a gap in many dental restoration workflows, giving laboratories the added flexibility of milling glass ceramic, composite resin materials that are becoming increasingly popular in the industry due to their high translucency, increased flexural strength and hardness, and overall aesthetic value for inlay/onlays. Cerec Machine,Dental Machine,Dental Milling Machine,Teeth Cleaning Machine Shandong Carved Intelligent Technology Group Co.,Ltd , https://www.demetdent.com
2. The boiler water should be softened and kept clean and free from grease.
3. A solid protective cover should be installed outside the glass tube of the water level gauge, and the outside should be kept clean. Each shift should be flushed to see if the water level in the water gauge can rise or fall rapidly. If there is water surface in the water level table that does not jump when running, the cause should be immediately identified to prevent the formation of a false water level.
4. The safety valve on the boiler shall not be adjusted arbitrarily. When the pressure gauge reaches 80% of the permissible working pressure, the safety valve should be vented once. Do not connect or embed the valve stem.
5. After the boiler is boosted, check whether the steam valve is sensitive, and always pay attention to the water level to keep it at the position of the water level table 2/3.
6. When the boiler is found to have one of the following conditions, it should be urgently shut down:
(1) The air pressure rises rapidly above the permissible working pressure. Although the safety valve is already open, the air pressure continues to rise;
(2) The water level is not visible in the water level gauge or the water level in the water level table drops rapidly, although the water supply continues to decline;
(3) One of the accessories such as pressure gauge, water level gauge, safety valve, sewage valve and water supply, etc.
(4) Burning red deformation of the furnace or other pipes, as well as serious water leakage and air leakage.
7. When emergency shutdown, first stop the combustion, close the damper, open the furnace door and vent valve. If there is a water shortage accident, it is strictly forbidden to add water to the furnace immediately.
Teach you to operate a low pressure steam boiler safely
1. Before firing, check whether the valve water pipes, steam pipes, pressure gauges, safety valves, water level gauges, drain valves, etc. are in good condition.