How can blockages in the boiler economizer be effectively prevented? ? ?
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This post was last edited by zgj2405 on 2010-12-11 at 16:14. Our company produces coke oven gas on its own; the boiler economizer gets clogged frequently. Does anyone have any good solutions?
The last edit to this post was made by zgj2405 on 2010-12-11 at 16:15. Reply 1# YJF6108: 1. First, choose high-quality coal to ensure complete combustion, and increase the speed of the induced draft fan appropriately. 2. Gas pulse soot-blowing equipment can be installed at the economizer section. The principle involves mixing combustible gas with air in a certain ratio and igniting it with high-energy ignition to generate shock waves of controllable intensity within a shock wave generator; the soot blowing operation is carried out through the combined effects of kinetic energy impact, acoustic energy oscillation, and thermal energy cleaning. It is used in power equipment such as coal powder boilers, circulating fluidized bed boilers, fuel oil boilers, gas turbine waste heat boilers, desulfurization units, electrostatic precipitators, waste incinerators, acid production waste heat boilers, alkali recovery boilers, petrochemical heating furnaces, roasting furnaces, cement kiln waste heat boilers, and oil field injection furnaces. It can effectively restore the boiler’s output, improve its efficiency, and achieve the goals of safe production and energy savings.
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Reply to 1# YJF6108: The best approach is to address the hardness and turbidity of the water used to fill the boiler, with hardness being the main issue. For example, in the case of steam boilers, the hardness should be kept below 0.03 mmol/L (you can look up the specific hardness standards for industrial boilers online); I think it’s clear even without me explaining further. Drain waste regularly in accordance with the operating procedures. In most cases, it is caused by the excessive hardness of the water supplied to the boiler, which exceeds the specified standards. Or it is caused by secondary pollution of the boiler water. Our factory’s boilers also experienced the same problem in the past, due to poor water quality; things improved once the water quality met the required standards. There are no other shortcuts; just work hard!
Reply to 5# wqs333333: I’m talking about external blockages that cause gas to be wasted! ! Flue! !
1. The combustion tissue must be good! Ensure proper air distribution to achieve as complete combustion as possible, and at the same time increase the intake of air to enable combustion under negative pressure! 2. Check whether there is any air leakage in the flue; air leakage should be minimized as it can affect the exhaust efficiency. 3. Reduce flue gas resistance. 4. A soot blowing device can be installed.