Strengthen the characteristic industry group of Suzhou annealing furnace

Suzhou Jiuwei Electric Furnace Equipment Co., Ltd. has special insights on strengthening the characteristic industrial group of Suzhou annealing furnace

During the production process, the Suzhou annealing furnace must be filled with nitrogen and hydrogen protective gas. In order to reduce the amount of gas, the furnace body and various transmission components are required to be sealed. However, because the Suzhou annealing furnace is generally large (about 48 meters in length and 22 meters in height), welding There are many seams and complicated flange connections, so it is impossible to achieve a complete seal. A cooling fan should be installed on the appropriate part around it to introduce the external cold air into the hood and discharge the hot air out of the hood. So a constant combustion process is very important. Production practice has proved that the steel belt can meet the need of constant operation when the steel belt tension is mpa. Wires and terminals should be connected by thread connection, compression connection or solder connection. Moreover, practice has proved that the blast furnace temperature can ensure the no-oxidation air in the nof section, and avoid the secondary oxidation of the strip steel as much as possible, which is conducive to the reduction and impregnation of the rth section.

Pennekamp Electric Suzhou Annealing Furnace Hot Air Cycle Technical Affair Schematic Diagram The basic point of the ladder logic of "heat receiving and taking over" inside the programmable controller is to determine the exhaust damper and suction according to the temperature of #1, #5 and #8 The opening of the damper is used to control the reverse air flow. 3. Heating system design. The part of the first lower baffle 2 in the isolation cavity 0 except for the framework (the first lower reinforcement plate. When using coke oven gas and blast furnace gas, the temperature fluctuation of the gas will be larger, and it will also cause the fluctuation of the excess air coefficient. The oxide layer produced by the annealing process under the condition of full oxygen will be removed in the subsequent in-line pickling process. The outline of the oxide layer is clean and free. The 3×1n·mmt state is a semi-hard state of 8o/ Hard.×1mm tensile strength The annealing temperature of 9on·m/the softening annealing of copper wire decreases by half the temperature: ~9mp; the hard copper is hardly oxidized in the air at room temperature and dry. It is ~8mp.

Pennekamp Electric Suzhou Annealing Furnace Hot Air Cycle Technical Affair Schematic Diagram The basic point of the ladder logic of "heat receiving and taking over" inside the programmable controller is to determine the exhaust damper and suction according to the temperature of #1, #5 and #8 The opening of the damper is used to control the reverse air flow. The lining seams should be staggered at least mm. It is mainly used for non-oxidation bright annealing of mechanical parts, silicon steel sheets, copper materials, red copper, wires, etc. In addition, the oven time is longer than the electric furnace than the muffle furnace. The n-type nickel-chromium-silicon-nickel-silicon thermocouple sensor is selected in the system. Its use temperature is 200℃ and 1300℃. It has good linearity, high thermoelectricity, high stability, good oxidation resistance, low price and other benefits, so it is suitable for this system. If the temperature of section #4 and #5 is still higher than the upper limit, you should continue to maintain a larger reverse air flow to return excess heat (to reduce the heat absorbed by the electric heating element in section #1).

The thermal diagnosis of the galvanizing Suzhou annealing furnace uses the heat balance method to accurately detect the thermal efficiency of the Suzhou annealing furnace, and then perform the furnace pressure diagnosis, the dew point diagnosis of the furnace gas, the diagnosis of the non-oxidizing heating zone, and the diagnosis of the radiant heating zone , Diagnosis of heat dissipation on the surface of the furnace body, diagnosis of the cooling section, diagnosis of the furnace temperature and plate temperature, etc., so as to find the root cause that affects the thermal efficiency. Air jet will increase the amount of pumping of the steel strip. Take the jet-slot air-jet cooling system as an example. When the nozzle spacing is mm, the distance between the nozzle and the steel strip is mm. Through actual jet cooling test measurement and theoretical calculation, the steel strip can be obtained. The amount of thigh chestnut under the jet dip can be calculated with a formula.

This is the most basic and easiest diagnostic project. However, the main character of furnace pressure is often not recognized by people. In fact, to ensure the normal operation of the heating furnace, first of all, it is necessary to ensure that the furnace pressure is normal and unchanged. Galvanized Suzhou Generally, it is more appropriate to control the furnace pressure of the annealing furnace to 5~7pa. It should be paid special attention that only the segmented inspection can fully reflect the problem. 6w/cm long life design.