Stone washing is a way to remove stone dust, which is suitable for those stones with poor dust removal effect, such as basalt and diorite.

What needs to be washed here are all high-grade stones used in the upper floors of expressway, such as basalt, diorite and diabase. Stone must be washed because of its high hardness, difficult processing and high quality requirements.

Water washing needs to increase facilities such as pumps, and drainage problems should also be considered. In addition, the dust washed away is also a loss. When dust accumulates too much, it is spent on cleaning and transferring. You may have never seen so much dust. It's terrible.

The price of washing the upper stones here is around 80 yuan/ton, and the price of washing is around 85 yuan/ton, which is basically the price difference in 5 yuan, but if the cost of washing is well managed, it will never exceed that in 2 yuan.

In my previous dock, the price of hanging sand and hanging stones was the same (calculated by tonnage), and sand was better because each barrel could hold more. If the type of hanging big stones 19-3 1 is basically unsatisfactory, the crane owner is still willing to hang sand, but if the water content of sand is too large and too heavy, the crane will be overloaded, which will affect the service life of the crane. If the hanging price is calculated according to the square, the sand must be expensive, but I haven't measured it like this, which is ridiculous.