rice husk boiler for paper industry

Prevention of rice husk boiler for paper industry scale chemical plants What precautions boiler scale chemical plants which have 1 pot outside water. The method of treatment is the outer pot raw water before entering the boiler, wherein the boiler operation harmful substances through the necessary process processing with the aim of reducing calcium and magnesium ions in the boiler water to prevent boiler scaling and prolong the service life of the boiler. There softened water treatment, chemical, water desalination, heat, electrodialysis, and reverse osmosis desalination, four. Pressure in the boiler can be generally chemically softened water, high-pressure and ultrahigh-pressure boiler, to be deoxygenated and desalted water. In general, do not pollute surface water, hardness and alkalinity is very low, usually to soften; groundwater is very different, their common feature is the high alkalinity, therefore, should be considered in addition to softening in addition to usual bases; usually not required in addition to salt chemical boiler, only the high salinity water, generally soften, in addition to the base can not solve, in addition to considering salt, iron and high iron in groundwater. 2, the pot of water treatment and sewage. Boiler water is reduced by adding an amount of the boiler to prevent fouling or soft water, so that fouling material into boiler water sludge is then discharged from the boiler by blowdown. Treatment of the syrup, commonly used in small low pressure tube boiler, commonly used drugs are: trisodium phosphate, soda, caustic soda and organic colloids. The method of measurement points and two kinds of periodic continuous manner. Regular administration is usually carried out in a water tank, water was added continuously to the water before the water supply equipment. For steam boiler, by methods generally continuous dosing of the liquid in the boiler is more uniform. In general, the use of steam quality less demanding unit, in operation to ensure reliable exclude slag formed in the boiler, dirt formed by the dosing, the boiler will not affect the safe operation of the boiler can be carried out pot water treatment. 3, cleaning. Scale boilers can generally be divided alkali cooking (wash) cleaning, acid cleaning, mechanical cleaning three. Soda boiling boiler cleaning effect is designed to allow scaling, while its liquidity. Soda poor cleaning and scaling, often require complex mechanical descaling. Boiling descaling base have a certain impact on fouling sulfates and silicates, but the removal of the carbonate scale pickling far less. Caustic oven and cooking oil typically used to remove rust and installed on a new boiler, sometimes go to scale in the pickling or degreasing. Boiler should represent the sample size in advance before pickling tests, the cleaning solution; a start must be hanging box corrosion index (until the exit acid) as the acid in the boiler and acid; pickling process and the temperature of the pickling solution, such as concentration, flow rates, and control of pickling time should be achieved in accordance with the cleaning solution; the process should continue to clean and accurately recorded sample tests. 4, boiler operation and management. In the actual operation of the boiler, the boiler operation and management is an important means of preventing boiler scale. The operator shall establish the safety awareness of energy conservation, attention to boiler scale possible hazards and energy waste caused by learning the rules and regulations and national security specifications, attention to the operator (water treatment personnel and fireman personnel) training, develop effective rules and reward systems, regular testing work of the operator, even the best policy if not execution, it was only empty talk.

Another energy that is electrical energy, which is now a source of energy many people often use them everywhere in life are inseparable from power, at the same time the use of steam rice husk boiler for paper industrys, can this energy, which belong to a secondary energy, the same will not pollute the environment, and it will not be limited fuel, but because he is a secondary energy, so the price is more expensive to produce one ton of gas, need to consume $ 700 electricity.

The latest period, the first 300MWe CFB rice husk boiler for paper industry licensed from Alstom was successfully demonstrated. Based on the imported technologies and domestic experiences, new design with independent intellectual property of the 300MWe CFB size was also developed. Both foreign and domestic technologies have been rapidly used in more than 100 units. The largest 600MWe supercritical CFB boiler will be demonstrated in China in the next two years.

In recent years, Hebei Province People's Government to respond positively to Blue Sky Battle action plan promulgated by the state, and all of 35t / h coal-fired rice husk boiler for paper industry and below in the Hebei province out of the transformation process. First Hospital of Baoding respond positively to the call of the provincial government, eliminate serious pollution of the original coal-fired boiler hospital, citing energy saving steam boiler to natural gas as raw material. After a series of market research, WNS Series Split hospital condensing gas boiler boiler other fast soft spot.

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