Cold rammed paste has its own precise density, so in this, we can see that the knowledge learned is actually very rich. No matter from what aspect, the characteristics of cold rammed paste are distributed in the middle. What is the method to determine the height of cold rammed paste? Xiaobian will explain it to you today.
The height of Cold ramming paste refers to the height from the upper end of the electrode clamp to the top of the electrode paste. If the electrode paste is too high, the coarse and fine particles in the cold rammed paste are prone to delamination, or the electrode cylinder is swollen due to the pressure of the paste column. If the electrode paste column is too low, it is difficult to obtain a dense electrode because the pressure of the paste column is too small and the filling property is poor. The consumption of Cold ramming paste is too fast. The proper height of electrode paste column is conducive to improving the quality of electrode roasting and reducing consumption.
By controlling the height of electrode paste, sintered electrodes with good quality can be obtained, which can be controlled by manufacturers according to the actual situation. For example, the electrode diameter of a 25500kva calcium carbide furnace is 1250mm, and the height of the electrode paste should be controlled at 3.5-4.0m, which is more appropriate.
Measurement method of Cold ramming paste height:
When measuring the height of electrode paste, the tool used is a hemp rope. At one end of the rope, a 100mm*50mm150mm ball made of melted electrode paste is tied. The rope is about 10m, and a mark is made every 200mm.
Is the distance (measured value) from the top of the electrode cylinder to the base of the pressure release cylinder (the upper edge of the electrode cylinder jacket), mm; B is the height (measured value) of the empty cylinder of the electrode cylinder, mm; C is the height of electrode paste (calculated value), generally C is 3500-4000mm; D is the height of electrode paste liquid, generally D value is 1000-1500mm; L is the working length of the electrode, about 1800-2000mm from the low ring to the electrode end (the L value of the internal combustion furnace is about 1500-1800mm).
The calculation formula of Cold ramming paste height (mm) is as follows: