I have a customer requesting a cone bottom hopper tank for use in storing drilling mud. The design that has been suggested is a 24'-0" high by 10'-0" diameter tank with a 3/8" thick ASME flanged and dished head for a roof, 1/4" plate for the shell and a 1/4" cone at the bottom with an angle of approximately 60 degrees. There will be a compression ring at the shell to cone intersection. The mud will be pushed out through a flanged connection at the bottom of the cone.
My concerns lie in the fact that in order to agitate the mud to get it flowing, air will be injected into the tank, bringing the internal pressure up to 14.6 psi for extended periods of time.
We have constructed drums before with two ASME flanged and dished heads and 1/4" shells. These were non-registed/non-labeled vessels with a maximum operating pressure of 14.6 psi. I know that the roof of the mud tank can stand these pressures, but I am wondering if the cone will.
I anyone has any experience in the design or use of tanks such as the one I have described above, your comments would be appreciated.
My concerns lie in the fact that in order to agitate the mud to get it flowing, air will be injected into the tank, bringing the internal pressure up to 14.6 psi for extended periods of time.
We have constructed drums before with two ASME flanged and dished heads and 1/4" shells. These were non-registed/non-labeled vessels with a maximum operating pressure of 14.6 psi. I know that the roof of the mud tank can stand these pressures, but I am wondering if the cone will.
I anyone has any experience in the design or use of tanks such as the one I have described above, your comments would be appreciated.