if you have any question? Call Us 0086-371-60922096
if you have any question? Call Us 0086-371-60922096
What inquiry for operated boiler need for attention? Now oil, fuel, natural gas is a very scarce resource, when used in mining will be accompanied by a series of pollution problems, the face of this situation, boiler has become an urgent need to solve the problem, you know boiler and a large, there are dangerous equipment, so the transformation process we need to pay attention to some problems to be able to make it to transform all aspects of security smoothly, Here we give details of the content of transformation should be noted: 1, pay attention to dismantle the step of performing boiler prior to the transformation, to dismantle its main and auxiliary engines, but how demolition, operators need to advance the development of a detailed demolition plan according to the boiler case, then one by one followed by removal of clear indicators based on the removal step, not indiscriminate demolition otherwise it will cause safety accidents; 2, pay attention to the transformation of the furnace to know a lot of focus on the steps of the boiler furnace to transform all around, the general professional boiler when the company will be re-engineered to the furnace pouring new furnace, replace the old furnace, but also so that the original After the furnace arch tube can not have been affected by high temperature burning, the flame away from the center point, this will allow the furnace to become more durable; 3, do not forget a lot of people think it is testing everything will be fine in the boiler after the completion of renovation work, in actual fact, but also to test work after the transformation of the boiler, the boiler body to hydrostatic pressure test point five times. If the last test pass, then, to complete the delivery. The average person will ignore, I hope we can notice this; when the boiler, hope everyone can have some knowledge of three of its top hope in the transformation may be noted that the above-mentioned problems, avoid errors caused by safety problems , if you are looking for a trustworthy company's boiler, then you can consult a few good brands of the company, then let the company to own the corresponding boiler rehabilitation programs, in order to examine the strength of the company's transformation.
6 tons adjusting a combustion gas steam inquiry for operated boiler, normal combustion boiler three basic aspects of indicators include a uniform supply of the fuel, reasonable ventilation, adjustment the combustion. 1, to maintain the high temperature of the combustion chamber temperature of the upper layer is preferably in the 1100 ~ 1300 ℃, flame orange in color. Flame reddish color indicates that the amount is not enough to the wind, the color white indicates that excessive wind. It should be appropriately adjusted. 2, fuel ash to reduce ash content in the combustibles to be below 10%. 3, reducing the temperature of the boiler flue gas exhaust gas temperature should be controlled below 200 ℃. 4, holding furnace negative excess air boiler is 1.2 to 1.4, by adjusting the balance of the blowers to maintain the furnace pressure is -20 ~ -30Pa. 5, the thermal efficiency of the boiler to improve the thermal efficiency of the boiler should be kept above 60%. II. Combustion Adjustment 1, the amount of fuel to air required for combustion and the amount of a reasonable distribution. Ventilation should first increase the amount of fuel increases, it should first reduce the amount of fuel supply reduced ventilation. 2, the thickness of the seam and seam thickness configuration grate speed is 80 ~ 120mm grate speed at high, middle and low profile configuration of several commonly used methods:. 9a rapid combustion of thin seam b c thick seam in low combustion. 3 thick seam combustion speed, the segment with the wind blowing principle: burn promoting intermediate ends. That is, after the coal into the coal starts to warm up the shutter, fire line front arch, the primary combustion zone, the middle grate to burn the rear grate zone. Normal combustion conditions are: fuel from the coal at the beginning of the fire shutter 300mm, uniform flames, the fire bed formation, at the end of combustion from the end of the grate 300 ~ 500mm. 4. maintain proper furnace temperature to avoid coking. The fire bed to maintain the homogeneous combustion, to avoid burning fire bed obliquely. 6. The residence time of the fuel on the grate in less than 30 minutes.
In order to further standardize Xuzhou City, air pollution control construction and operation management, protecting and improving the quality of the environment, prevent environmental pollution, introduced the "Xuzhou City in 2019 the thermal power industry, air pollution control basic norms." For the raw fuel storage, handling, transportation, storage byproducts, transport, collecting and centralizing the flue gas treatment systems and other aspects of the essence of the specific requirements.
First, all coal-fired units desulfurization facilities required to install, in addition to coal-fired circulating fluidized bed boiler units to be installed denitration facilities, coal and biomass fuel units to be equipped with efficient dust removal facilities. Desulfurization, denitrification, dust removal device processing capabilities must meet the production needs, we must be able to maintain long-term stable operation, must be professional manufacturers design, produce qualified products. Exhaust pipe shall be provided with permanent sampling ports and in accordance with national and regulatory requirements related to the construction of Jiangsu Province.
Second, the boiler produces air pollutants must be in accordance with national standards and requirements related to Jiangsu Province, construction of flue gas collection systems and centralized purification facilities, flaring has been the implementation of "coal to gas," "dry FGD" and included in discontinued closure plan outside the coal boiler, and the rest are required to install the cooling and dehumidification systems, and to ensure proper operation.
Boilers which are several general, in what is now the mainstream Why? 1, gas inquiry for operated boiler advantages: efficient, clean, environmentally friendly, without manual operation, only need to monitor, small footprint, no transportation fuel, no need to deal with soot, due to the combustion of natural gas free of impurities, without corrosion damage to the boiler and related accessories long boiler life, defined as 15 years, but basically long-term use. Is now mainstream boiler, natural gas is the environmental protection sector, the government vigorously promoted. Cons: You do not know how much that gas prices are calculated according to the calorific value and thermal efficiency, generally bituminous coal per ton of coal (according to 5500 kcal / kg) is approximately equal to 350 to 400 cubic meters of gas. Probably a little slightly more expensive than coal. (No transport, area, ash handling, labor, etc. into the calculation). 2, oil-fired boiler, advantages: substantially the same structure and properties of gas boilers. Disadvantages: higher cost of natural gas is 2 times the boiler, diesel transportation, storage more dangerous, accident-prone. And the domestic diesel supply is unstable, easily interrupted. 3, coal-fired boilers, the advantages: the economy. Disadvantages: 1, requires a lot of ash and coal yard area. 2, a boiler fireman for 4 to 8 people. 3, boiler room and coal yard is very dirty. 4, noise, emissions of dust, nuisance. 5, environmental protection departments often to check an inattentive, he was diagnosed with excessive emissions, maintenance shutdown, fine, very troublesome. 6, coal sulfur content are more severe corrosion of boiler, 10 to 15 years after the basic unusable. Summary: Due to high oil prices and supply unstable now, and now oil-fired boiler has been temporarily withdrawn from the market. Natural gas prices due to regional differences are very different, although you are not sure where the price of natural gas, but natural gas in most parts of the domestic coal is relatively expensive, (only in Sichuan, northwest of cheaper natural gas). Especially large industrial boilers, more fuel, the cost difference is more obvious. Coal-fired boilers to heavy air pollution, with the country on environmental issues more and more attention, more stringent emission requirements for coal-fired boilers, a lot of urban cities, has stopped the examination and approval procedures coal-fired boilers. It is recommended that, if your organization is not large tonnage production of boilers, installation of gas boilers or better, although with a little more than fuel costs, but in the actual operation of the process, you can save a lot of things, while saving area, the environment is clean.
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