The lock bucket cannot be rushed in and pressed.

Is this a process requirement? Check the valve’s action speed.

1. If there is a leak, judge it by the upper and lower temperature of the lock bucket (including the valve movement is not in place) 2. Stamping valve failure (actually check the valve position on site) 3. Stamping pipeline is blocked (the current of the high-temperature hot water pump, the pipeline temperature, use the black water circulation pump to flush it down, if it still doesn't work, the front of valve 7 is blocked, or the valve core has fallen off)

Based on my experience and analysis, the situation you are talking about may be caused by the pressure difference between the front and rear of the valve being too large at the beginning of charging, and the valve actuator is not strong enough to open the valve core. When the pressure difference between the front and rear of the valve decreases, the valve gradually opens.

The lock hopper is empty. Check whether the liquid level in the lock hopper flushing water tank has dropped too low.

Does the poster have a hand valve in front of the pressure valve? This can control the charging rate. If the front hand valve is not opened too small, there may be a blockage in the charging pipeline, or there may be a leak in the lock bucket system.

Let me answer your questions above. The valve of the 1 lock bucket system allows high pressure differential operation, otherwise how to open the 5 valve to release the pressure? The on-site and central control are correct, and the valve operates. 2. The front valve of the stamping valve has been fully opened. 3. If there is a leak in the lock bucket stamping pipeline, it would have been obvious in such a cold day. 4. The lock bucket cannot leak. The temperature of the upper and lower parts is normal and there is no temperature increase. 5. When the slag is discharged from the lock bucket, there is a pressure of a little more than 0.1 MPa before stamping. Besides, if the water used for stamping the lock bucket is not full, there should be no pressure. 6. The stamping pipeline is hot when touched on site. I suspect it may be a valve 7 issue. Use the black water circulation pump to test the stamping force before talking.

It has nothing to do with the pressure charging valve. When the lock bucket is releasing pressure and discharging slag, there are bubbles in the lock bucket. The bubbles may be entrained in the lock bucket flushing water tank, or they may be flashed out when the pressure is reduced. After the third valve is closed, the liquid level in the lock bucket increases, but in the section of pipe below the second valve at the upper end, this part of the air cannot be discharged. When charging, in the low pressure stage, the bubbles are large, the volume changes slowly, and the charging speed is slow. ； As the pressure increases, the volume of the bubbles becomes smaller and smaller, and the liquid is incompressible and the pressurization speed becomes faster and faster.

Low pressure charges slowly, high pressure charges quickly, that is, the lock bucket is not filled with water.

Is it because the lock bucket is not filled with water? Today, after manually activating the lock bucket, manually close valve 3. Valve 4 and valve 5 are open, close the water adding valve of the lock hopper flushing tank, and the liquid level cannot be changed, and the lock hopper has a pressure of 0·18 after the slag discharge valve of the lock hopper is closed. If the moderator said the temperature is high and airy, the lower temperature is now only 60 degrees, which is lower than designed. The night shift shortens the slag collection time of the lock bucket. Decreased from 500 seconds to 300 seconds. Remained the same during day shift. Now 140 seconds.