| 摘要 |
A mud mixing system 10 includes a cylindrical hopper 12 having at least one upper conduit 14 with adjustable means 18 controlling a jet 16 into a vortex chamber defined between cylinders 62 and 64. At least one second conduit 20 with adjustable means 24 controlling a jet 22 emanating therefrom which is used to fill tank 12 from the bottom portion up with fresh water and/or drilling mud to shear means 30 which include a pair of vertical shafts 32 and 34, each having attached thereto at their lower portion generally horizontally extending pin shear members 36 and 38 vertically spaced apart a distance D to obtain effective shear. A table 40 to hold mud additives includes a fence 42, and a cylindrical spout 44 is used to add mud additives to hopper 12. Shafts 32 and 34 extend through chamber 66 and bearing assemblies 50 and 52 and are driven by a suitable power source 54 which may be an electric motor or combustion engine. A discharge 70 comprising a cylindrical conduit located in an opening 74 in bottom plate 76 is located inwardly from hopper wall 12 a distance sufficient to prevent unmixed, heavy portions of the mud from discharging. In the vortex 60, the heavy ends of the mud go to the outside and the light, mixed ends go to the inside of the hopper, and are discharged through the outlet after being thoroughly mixed. The gaseous material is discharged through opening 66 inside cylinder 64.
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