Hongxing Hammers at Technology Innovation of Rotary Kiln

In general, there will be crack in the head of the rotary kiln that is the junction of the cylinder and the fixed kiln head and in the kiln tail which is the junction of the cylinder and the fixed smoke chamber. The rotary kiln is in operation under the negative pressure. In order to prevent the outside air from being sucked into the rotary kiln to stabilize the thermal system, it is necessary to install the sealing device in each of the parts mentioned above.
Our company mainly produce rotary kiln for ore dressing,30 years of industry experience to create top quality, Our rotary kiln equipment is trusted by many customers at home and abroad.What should spare Rotary Kiln welding work before?
1.The rotary kiln shell welding work must be qualified in the rotary kiln shell is looking after, and the use of welding gear rotary kiln.
2.Electrode selection: rotary kiln electrode welds to ensure its quality should not be less than the mechanical properties of the base metal mechanical properties, welding process parameters and the specific implementation requirements of the drawings. Drawing no requirements, must develop welding instructions.
3.To participate in the rotary kiln shell welding welder, must pass the examination are allowed to officially participate in the rotary kiln shell welding. Normally two test panels of each welder welding, bending and tensile strength required to intercept test specimens for bending and tensile strength tests. Test panels of material, groove forms, welding processes are the same requirements and formal welding.
4.Used for rotary kiln shell welding electrodes, must be dried before use, in the dry box, the temperature of 250 ~ 300 ℃, drying time is 1 ~ 2h. Dried down to about 150 ℃ temperature preservation, on the insulation tube, used with the check, to avoid staying too long in the air. To a service-oriented brand integrity, as the professional manufacturer of complete sets of mining machinery, like rock crushers, Henan Hongxing is always doing the best in products and service.grizzly feeder: http://www.china-hxjq.com/n264.html
5.Before the deal rotary kiln cylinder welding groove in the form, size check, not a groove at the delamination crack, slag and other defects affecting the quality, welded joints before welding on both sides should be 30 ~ 50mm wide paint , rust and other dirt cleaned, exposing metallic luster to start welding.
6.Prior to welding, the rotary kiln gear lubricating roller bearings, roller wipe the surface of debris, with the auxiliary drive slowly turn rotary kiln shell, the welding ground shall not be connected to the rotary kiln tire or wheel on the cable insulation measures should be reliable, have good low welding location lighting, ventilation and insulation. Also, the rotary kiln in welding workers and establish communication links between operators.
If kiln tail has air leakage, it is easy to suck in large amount of the cold air because the kiln tail is the part that has the largest negative pressure, which will make it difficult to discharge large amounts of gas in the rotary kiln so that the fuel cannot be burned completely, resulting in that the thermal system is broken and increasing the fuel consumption as well as reducing the yield of the kiln. At this point, if the operators still want to maintain a certain ratio among the amount of wind, fuel and materials, they need to increase the load of the exhaust fan, which will increase the power consumption. At the same time, because there are powdery materials in the gas and the occasionally down draft will spill a lot of dust, affecting the health of the plant. Therefore, the design requirement of the sealing device of the kiln tail should be higher than that of the kiln head.