3 ton coal fired boiler for timber firewood
There are many coal fired 3 ton coal fired boiler for timber firewood manufacturer in China. ZG Boiler in China, has more than 70 years experience in boiler manufacturing and designs. And our products includes gas fired boiler, oil fired boiler, lph boiler, chain grate boiler, biomass fired boiler stoker, cfb boiler, etc.
Operation of a gas 3 ton coal fired boiler for timber firewood gas boiler in Henan related to maintenance, the ignition operation, fire, shutdown and some other operational measures: First, the gas boiler maintenance Henan, operating procedures should be required to carry out tests on the gas transmission main boiler protection devices, ensure that the main protection correct action. Second, the ignition process Henan gas boiler, fuel pressure, fuel temperature, steam pressure atomization, atomization steam temperature and other parameters must meet the requirements of operating procedures, good place to observe oil gun fire, fire detection return to normal, prohibit short-energize inspection signal forcibly put into the oil gun running. Single oil gun when the flow is greater than 0.65kg / s, exit the gun should be run immediately. Third, observe boiler ignition temperature rise rate of fire smoke significantly Pianman furnace flue gas temperature of the main steam temperature, steam pressure rises when the main, the case of smoke or boiler ignition temperature did not rise immediately to check the opinions of the oil gun, if No fire was found after the fuel into the furnace, emergency shutdown, re-ventilate the furnace purge Do not allow to run into the boiler ventilation oil gun. Fourth, note that starting mill to check whether the subject returns normally coals, coal mill outlet temperature of greater than 70 deg.] C line is allowed to increase the amount of coal (three grinding mill operation start of the fourth stage, the coal mill outlet line than 80 ℃ temperature allowed to increase the amount of coal, to prevent excessive vibration furnace). Full stop before the gun when the present discharge amount of coal is increased 5.0kg / s or more. 6.3.5 Operating Henan gas boiler, "furnace black", "lose the protection of the main fuel" must be put into operation as required operating procedures. In case of a fault protection device itself appears to be temporarily out of operation, to be approved by the competent manager or chief engineer before implementation. "Furnace black", "main fuel unprotected" means the period out of operation, priority monitoring attendant to furnace pressure, the oxygen, the main steam temperature, the main steam pressure and other parameters, and through the furnace of fire industrial television monitor, and if found hearth fire, emergency shutdown. Sixth, Henan gas boiler normal operation, the fuel system and oil spare gun good condition, found that boiler combustion instability immediately put oil combustion. Seven, after Henan gas boiler fire, into the oil gun is strictly prohibited without the operation of the boiler ventilation. Eight, gas boiler has confirmed the fire, when the MFT is not operating, emergency shutdown, and check that the two primary air fan, 4 mill, 16 oil gun has stopped running. Back nine, Henan gas boiler trip or normal shutdown to be purged immediately ventilate the furnace, the furnace unburnt coal dust and combustible gas pumped in a timely manner. And promptly shut down the boiler supply and return oil total gate manually to prevent leakage of fuel oil gun into the furnace. Ten, Henan gas boiler shutdown purge gun ban mill and pulverized coal into the furnace exhaust.
BOILERS deposited combustible material, such as carbon black, oils idle, coal, etc., it is mainly due to incomplete combustion of the tail into the 3 ton coal fired boiler for timber firewood. Especially when the ignition and shutdown, most likely to cause incomplete combustion, the rear of the boiler deposited a large amount of combustible material. These deposits reduce the heat transfer surface of the tail heating the exhaust gas temperature rises. When the exhaust gas temperature rises to a certain value, there is sufficient oxygen combustion condition occurs at the secondary combustion, secondary combustion is in the shutdown some minutes or hours after the occurrence, which is the ignition point of combustible material and heat conditions. Running faster flow of the flue boiler, heat of the combustible substances produced smoke away quickly, only a slow oxidative, ignition combustion can not be achieved. After the shutdown, the gas flue, the flow is stopped, the heat generated by the oxidation of combustible material not easily lost, the temperature will rise. If the door or flue damper closed tightly, leakage into the fresh air for combustion, causing secondary combustion after shutdown.
Recently, Shandong Province, issued a "thermal power plant air pollutant emission standards (DB37 / 664-2019 instead of DB37 / 664-2013)". Standards will be implemented on September 7, 2019.
First, the standard applicable to the use of a single output 65t / h or more layers in addition to coal-fired burner, furnace stoker boiler or steam generator; single output 65t / h or more oil, gas, or steam generation boiler; single output 65t / h or more power using steam boilers other fuels; pulverized coal fired boilers of various capacities; various capacities gas turbine. Gas turbine integrated gasification combined cycle power generation is performed in this standard gas turbine exhaust gas as a fuel limit.
Environmental Impact Assessment II. This standard is applicable to the existing project management of emissions of air pollutants, as well as the above-mentioned new construction, renovation, expansion projects, environmental protection facilities design, environmental protection facilities acceptance, pollution permits and air pollutants after putting into operation emissions management.