An apparatus for making water-containing fuel oil comprising:
- a primary mixer (1) for primarily mixing water with a catalyst, a little quantity of fuel oil including heavy oil and crude oil, emulsifying agent and stabilizer for producing oil-in-water phase mixing liquid;
- and
- a secondary mixer (2) fed therein with the oil-in-water phase mixing liquid from the primary mixer (11) and a fuel oil having larger volume than the mixing liquid, said secondary mixer (2) including a turbine agitator (22) rotatably mounted in a lower portion of said secondary mixer (2), an eddy-flow guiding means (23) having a longitudinal section of calabash shape and disposed around said turbine agitator (22) for producing upwardly and downwardly curved eddy flows of a mixing solution consisting of the fuel oil and the mixing liquid from said primary mixer (1), and a plurality of turbulence baffles (24) radially disposed around the turbine agitator (22) for limiting the eddy flows in a plurality of sector zones (241) as defined among said plurality of turbulence baffles (24) for thoroughly mixing and emulsifying the mixing solution to produce microemulsion water-in-oil phase fuel oil;
- said secondary mixer (2) including:
- a secondary tank (21);
- the turbine agitator (22) provided in a lower portion of the secondary tank (21) and having an agitator shaft (221) driven by a driving motor (222) secured on a top portion of the tank (21);
- the eddy-flow guiding means (23) disposed around the turbine agitator (22) having an upper gourd portion (231) concave radially from a central convex portion (230) towards an inside wall of the secondary tank (21) for upwardly curving an eddy flow (E) of said mixing solution in the secondary tank (21) as propelled by the turbine agitator (22), the central convex portion (230) convex radially towards the agitator shaft (221) of the turbine agitator (22) to be generally transversely tangential to the turbine agitator (22), and a lower gourd portion (232) concave radially from the central convex portion (230) towards the inside wall of the secondary tank (21) for downwardly curving an eddy flow (E') of the mixing solution in the secondary tank (21) as propelled by the turbine agitator (22);
- a bottom valve (28) of mushroom shape forming an arcuate surface convex upwardly towards a bottom of the agitator shaft (221) to help guide the eddy flow (E') upwardly as guided from the lower gourd portion (232) to be drafted by the turbine agitator (22), with the bottom valve (28) normally closing a discharge pipe (29) connected to a bottom of the secondary tank (21);
- said plurality of turbulence baffles (24) radially mounted in the secondary tank (21), each said baffle (24) having a right-angle plate (240) formed as L shape from a cross sectional view of the right-angle plate (240) and orienting in a direction opposite to a rotating direction of the turbine agitator (22) for limiting the eddy flows (E,E') between two neighboring baffles (24) for forming each said sector zone (241) of eddy flow between the two neighboring baffles (24);
- an inner annular sprayer (25) fluidically communicated with the primary mixer (1) for feeding the oil-in-water phase mixing liquid from the primary mixer (1) towards the inner annular sprayer (25) to be sprayed downwardly into the secondary tank (21);
- an outer annular sprayer (26) disposed around the inner annular sprayer (25) and fluidically communicated with an oil feeder pipe for feeding raw heavy oil into the outer annular sprayer (26) to be sprayed downwardly into the secondary tank (21);
- and a conical perforated film plate (27) converging downwardly and formed with fine meshes in the film plate (27) for diffusing and homogeneously mixing the heavy oil and mixing liquid as sprayed from the outer and inner annular sprayers (26,25) and drained into a lower portion of the secondary tank (21) having the turbine agitator (22) provided therein.