What are the common faults in boiling furnaces and how to deal with them?
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I’m a beginner; I’ve only taken theoretical courses, and the factory hasn’t started operations yet. I want to become an expert in boiling furnaces, but since I haven’t done this job yet, there’s nothing I can do about it – after all, it’s my choice. I really want to do well at this job. I’ve tried before, but I didn’t learn much because my mentor said I had no experience in operating such furnaces. He suggested that I keep a record of the problems that arise frequently and note how to solve them. I hope to progress quickly through this forum, and I ask those who are more experienced to offer their guidance. If you have any questions, please share them so that those of us in the same field can make things easier for ourselves and make this job less mysterious. In my opinion, it’s actually quite mysterious; I want to uncover its secrets. I think everyone has problems and encounters challenges. If we can share our knowledge here, it could turn into an encyclopedia for this field. I hope everyone will give their support.....
Well written; go and learn more. Methods for starting up and igniting sulfuric acid boiling furnaces: http://bbs.hcbbs.com/viewthread.php?tid=209235. Issues related to the operation of boiling furnaces: http://bbs.hcbbs.com/viewthread.php?tid=202819. Operating procedures for sulfuric acid production: http://bbs.hcbbs.com/viewthread.php?tid=57675&highlight=%C1%F2%CB%E1
Start with the chemical theoretical foundations of sulfuric acid, and only then can one gradually move on to proficient operation as well as the identification and handling of accidents. Ask the master for advice from various directions.
Key points for the proper operation of a boiling furnace: 1. Continuously monitor the furnace temperature and the pressure at the bottom of the furnace, and operate strictly in accordance with the specified parameters. 2. Continuously monitor the moisture and particle size changes of the ore fed into the furnace. Keep in mind that the mineral material should be dry, fine, and have uniform sulfur content, so that the furnace can operate properly. 3. Slag should be discharged continuously, and it is preferable if the slag is brown in color. 4. The air intake must be stable, the flue should be free of blockages and leaks, and the ash discharge pipe must be unobstructed. VI. Causes of Abnormal Phenomena and Handling Methods: Serial Number, Phenomenon, Cause, Handling Method. 1. Severe smoking from the furnace and low negative pressure at the purification station; excessive air leakage. Check the ash discharge pipes and various covers for any signs of air leakage or detachment. 2. The furnace is emitting heavy smoke; the negative pressure in the purification unit is too high due to dust accumulation or blockages, preventing the furnace gases from being removed. Check the flue ducts and the dust collector hoppers, and clear any accumulated dust immediately. 3. The furnace temperature is dropping, and there is a significant positive pressure; gas release sounds can be heard inside the furnace. There is a leak (damage) in the evaporation tubes inside the circuit. The boiler operator will be consulted to determine the cause and take appropriate action. 4. The temperatures at different points in the boiling layer vary significantly, or the temperature at the feed inlet is low, resulting in poor boiling; there are too many wet ore clumps or impurities present. Check the quality of the ore fed into the furnace, quickly adjust the settings, open the holes for discharging coarse slag, and allow intermittent discharge. In severe cases, stop the furnace for maintenance. VII. Routine Inspections and Equipment Maintenance 1. Conduct routine inspections of the following equipment once per hour. Inspection location or equipment name: Contents. Hopper and disc feeder: 1. Check whether the material discharge is even and whether the quality of the mineral is satisfactory. 2. Are there any cases of mineral spillage or leakage, and is there any accumulation at the discharge outlet? 3. Check whether the lubrication is adequate, and whether there are any abnormal noises or overheating in the reducer and motor. Air blower 1. Are the oil temperature, oil pressure, oil level, and current within normal ranges? 2. Are there any vibrations or abnormal noises, and is the motor overheating? 3. Is the cooling water in adequate quantity? Slag discharge port, dust collector, ash hopper – all the ash discharge pipes as well as the ash discharge valves. 1. Is the electric valve operating smoothly and effectively? 2. Is the ash discharge port unobstructed, free of ash accumulation, and leak-free? 3. For the electric saw motor, check whether the reducer is overheating or lacks oil. 4. Check whether the color and particle size of the discharged ash meet the requirements. Flue ducts and dust hoppers: Check them once per shift, and seal any leaks promptly. 2. The dust hopper is cleaned of dust once per hour. 2. Equipment maintenance: (1) Keep the fan room and control room clean, with no dust or water accumulation on the various platforms of the furnace as well as on the floor. (2) Keep the equipment free of dust, with intact and effective painting, anti-corrosion measures, and insulation. (3) The motor is started without a load; you may change or substitute the fuse model as you wish. (4) The lubrication points of the equipment must be filled with oil of the specified type at regular intervals; the lubricating oil shall undergo three stages of filtration. (5) For electrical equipment that has been out of use for more than 24 hours, have an electrician inspect it before turning it on again.