7mv szs gas fired boiler applied in paper mill

Chemical prevent high temperature corrosion of 7mv szs fired boiler applied in paper mill waterwall boiler chemical improvements to prevent high temperature corrosion improvements waterwall 1, using an anti-art windshear main principle is offset by a spray angle of air flow injection port, and the original jet forming a motion , the opposite direction of rotation, in tangentially running smaller diameter, due to the opposite running direction of the initial movement of the main gas flow direction of the gas flow in the furnace after the anti-wind shear, the pulverized coal injected hindered high-temperature air upstream of the primary air flow and the time, the pulverized coal injection speed is reduced rapidly, enhancing coal dead time in high temperature zone, to enhance the combustion efficiency of pulverized coal. By using an anti-wind shear can effectively prevent high temperature corrosion phenomena, and can enhance the ability to stabilize combustion in the boiler furnace, reduced coke boiler case, as shown in FIG. 2, using the technology of Side by side wind technology is mainly on the high temperature zone waterwall corrosion or high temperature corrosion installed upstream of the injection port area, and ejecting the air in the furnace boiler. Technology is mainly employed side air can be controlled in the high-temperature reducing gas corrosion area, enhanced oxygen content in a local range. 3, to improve the control operation to take excess air coefficient increases, a plurality of coal mills is not put into operation at the same time, reduce the coal particle size, increase the air preheater ash fouling preventing plugging of equipment and operation control systems such as high temperature measures to prevent High temperature corrosion phenomena.

What are the matters needing attention in the retrofit of coal-fired 7mv szs fired boiler applied in paper mill?

With the implementation of the new environmental protection law and the introduction of new standards for the control of atmospheric pollution of boilers, the transformation of coal-fired boilers in various localities has been carried out in an orderly manner, and coal-fired boilers can be transformed into natural gas boilers in the actual operation. Can also be transformed into biomass boilers, but no matter how to reform, in addition to the choice of high-quality coal-fired boiler transformation company, but also need to pay special attention to the following matters.

1. When the boiler is dismantled, attention should be paid to shutting down the blower and stopping operation when the boiler is dismantled, and when the furnace temperature drops to an appropriate temperature, the boiler needs to be dismantled by the relevant parts of the existing boiler to be retrofitted to the coal-fired boiler. Stop the boiler induced fan, chain grate, then the workers enter the furnace from the fire door, remove the original furnace arch of the boiler, clean up the furnace interior, and then remove the main engine and auxiliary machinery of the boiler.

2. Attention to furnace reform is one of the key points in coal-fired boiler reform. The combustion conditions of existing boilers can be improved by reasonable transformation, which can not only accord with the combustion conditions of new fuels, but also play a better role in saving energy. However, it involves re-pouring the furnace, so special attention should be paid to keep the back arch pipe of the boiler away from the center of the flame, so that it will not be burned by the high temperature.

3. Attention should be paid to the modified boiler after a series of projects, such as retrofit of coal-fired boiler, pouring of new boiler front arch and back arch, etc., should be paid attention to after the retrofit of coal-fired boiler is carried out. One of the most important tests is to test the boiler body under certain pressure, and the boiler can be put into use only after the boiler has passed the test and revamped. These are a few things to pay attention to when reforming coal-fired boilers.

Fast 7mv szs fired boiler applied in paper mill particularly strong technical team, they listened carefully to our needs and give us tailored technology solutions, from boiler production, transport to the site installation and commissioning took only 35 days time, all aspects of the deal in place, the boiler quickly it is put into use. --customer feedback

3 macrotaxonomy steam 7mv szs fired boiler applied in paper mill steam boiler fuel can be divided in accordance with the electric steam boiler, steam boiler fuel, gas and steam boiler; constructed according to the steam boiler can be divided into vertical, horizontal steam boiler, steam boiler mostly small single, double return the vertical structure, large steam boilers and more horizontal structure of three return. Vertical fuel gas steam boiler burner set under way, double return configuration, fuel combustion, boiler stable; inserted spoiler smoke tube, smoke slow speed, increase heat transfer, a high thermal efficiency, reduce user cost. Horizontal steam boiler shell type three return all wet back downstream pyrotechnic pipe structure, the combustion flame in the combustion chamber large positive pressure, fully extended, low combustion heat load, the high heat of combustion efficiency, effectively reducing the exhaust gas temperature, energy saving and economical use. Waveform threaded pipe and furnace structure, not only improves the strength of the heat absorption of the boiler, but also to meet the needs of thermal expansion of the heating surface, scientific and rational, and durable.

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