Reasons for the water jacket of two-stage gas producer furnace to be discharged:
The water in the furnace body evaporates by heating.As steam is produced, the concentration of chemicals in the water (such as calcium and magnesium ions) will become higher and higher because it is insoluble in water.When its specific gravity is greater than 1, part of it accumulates in the furnace wall.Most deposits are at the bottom of the jacket, and these scales can lead to:
1. Cylinder deformation of furnace body.When it gets serious, the stove leaks and the water jacket explodes.This phenomenon is easy to ignore and can only be noticed when the furnace is turned off.
2. Cause chemical corrosion.
3. Affect heat transfer.
How to discharge water jacket in furnace?
There is a sewage pipe at the bottom of the gas generator.Keep the water level high in the drum until the jacket is discharged, and pay attention to changes in the water level during the discharge.After the lower sewage valve is opened, the personnel cannot leave the sewage discharge point. After the sewage discharge is completed, the sewage discharge is completed and the sewage discharge valve is all closed.
Clean the scale at the bottom of the precipitation water jacket: first open the inner drainage valve, close the outer drainage valve after opening, open after closing, repeat ten times, but the total displacement of water jacket water capacity does not exceed 5%.
Scale on the inside of the jacket is harder to clean.It can be used by hand shoveling, pickling and baking, but the active method is to use softened water.
1. During the operation of the equipment, in order not to interrupt the production, during the operation of maintenance, when the fire should be put forward by the fire unit, please ask the competent department for approval before the.
2. The unit that approves the use of fire shall assign personnel to monitor the fire on the spot and have first-aid tools and instruments, such as loess, asbestos board, wet straw bag and fire extinguisher, etc.
3, in the vicinity of the maintenance site is not allowed to use open flame, power supply equipment should be cut off and hung warning board.
4. The equipment system shall maintain positive pressure and pressure above 20-60mm, and shall be supervised by special personnel.
5, maintenance of the pipeline to cut off, only with a hacksaw, can not use gas welding cutting: welding, only allowed to use electric welding, not allowed to use gas welding, so as to avoid burning through the equipment caused by accidents.
Control of temperature of gas generator oven:
1 the gas temperature in the lower part of the oven is correct.
When the temperature is rising rapidly, put some large pieces of wood into the fire from the inlet and close the inlet hole.As the temperature slowly rises, place small pieces of wood, add fire and open the hole.
When the temperature is higher than 200°C and it is difficult to heat up, adjust the fire, or put more wood into the hole, close the hole, open the natural ventilation valve, start the coal machine to add coal, the gas is exhausted, and then add coke.The heating rate is controlled by the degree to which the air is fed into the furnace by the natural ventilation valve.
If heating is difficult, please start the blower according to the blower startup procedure, close the natural ventilation valve and open the furnace air valve for proper blasting, replace natural ventilation with mechanical ventilation, and increase the combustion air to raise the furnace temperature.In the future, the furnace will be heated and heated by adjusting the air volume and the amount of coal added to control the flame in the furnace.
5. Before entering the hole, remove the operating platform, observe the coal combustion from the fire detection hole, adjust the air inlet at the bottom of the furnace by pulling the brazing, and through brazing, make the whole furnace evenly ignite the upper furnace to correct part of the furnace and close the upper part of the discharge valve.
After oven 6, note the drum water level and gas production.If the temperature is high, the temperature can be reduced from low to high to the saturation temperature.
7. When the temperature reaches 600°C, the normal gas detection and qualified gas supply requirements can be sent to the user, without the need for production. If the temperature is lower than 800°C, the temperature cannot be barely raised, but the oven needs to be completed in 168 hours.
Record the temperature and other parameters every hour to draw the actual oven curve.
9. If there is no abnormality (the abnormal condition requires the cold furnace to be closed, the CO content should be tested and the shell should be repaired), continue to culture the material layer.
Grade 10 furnace and gas quality qualified (CO2≤ 5% CO≥ 27% O2≤ 0.4%) can be connected to the power grid gas supply;Before sending the grid into the air, steam is introduced in the insulated chamber to raise the temperature above 100°C.
The company sells gas generator, two-stage gas generator, rotary kiln and other equipment for a long time with reasonable price and excellent quality.Contact number: 86-13676907460