초록 ▼

Improved mixing equipment of the wall-baffled, cylindrical, mixing-vessel type is provided. The novel baffles employed have a uniform cross-sectional form corresponding generally to a small geometric segment of a circle, the radius of which circle is substantially equal to that of the inner wall of

Improved mixing equipment of the wall-baffled, cylindrical, mixing-vessel type is provided. The novel baffles employed have a uniform cross-sectional form corresponding generally to a small geometric segment of a circle, the radius of which circle is substantially equal to that of the inner wall of said mixing vessel. A plurality (e.g., 2 to 4) of such baffles mounted at uniformly spaced locations around the periphery of said inner wall are employed together with a concentrically located, multi-bladed impeller capable of providing good axial and radial mixing within said vessel. The subject mixing equipment can deliver outstanding performance in terms of speed and completeness of mixing, as well as economy in power consumption and peak power requirements. Results are especially noteworthy when the equipment is used to mix chemical reagents (gaseous or liquid) with thick, non-Newtonian suspensions of solids and liquids; e.g., wet wood pulps and similar compositions containing fine, fibrous solid matter.

대표청구항 ▼

In a mixing device having a mixing chamber with a cylindrical inner wall, a multibladed agitator adapted for rotation concentrically within said chamber via a suitable drive shaft and a plurality of equally spaced, elongated baffles coaxially extending along the inner wall of said chamber for the ma

In a mixing device having a mixing chamber with a cylindrical inner wall, a multibladed agitator adapted for rotation concentrically within said chamber via a suitable drive shaft and a plurality of equally spaced, elongated baffles coaxially extending along the inner wall of said chamber for the major portion of its length, the improvement which comprises each of said baffles having a uniform cross-sectional shape corresponding generally to a small geometric segment of a circle, the radius of which is substantially the same as that of the inner wall of said chamber, with the rounded, substantially cylindrical surface of each baffle fitted against the inner wall of said chamber and with the flat sides of said baffles facing inwardly.