摘要:
Described and claimed herein is a method of producing enhanced combustion ash for use in pozzolanic applications or cement clinker manufacture. The method employs a primary process in which wet or dry feedstock is pulverized with sonication using one or more grinding media having a maximum component size of about 2 mm. Alternatively, the media may have a true grinding medium volume to chamber volume ratio of at least 0.29. Also disclosed an claimed is an enhanced combustion ash produced by the method, whereby the enhanced combustion ash has one or more qualities that make it particularly suitable in pozzolanic applications or cement clinker manufacture.
摘要:
A grinding mill (100) for particulate material includes a rotary container (106) having an inner surface (118), a material feed for feeding the particulate material to the container, a first rotary drive (108,110,112) rotating the container about a first rotational axis (116), and a shear inducing member (126) contacting the particulate material in the container so as to induce shearing in the particulate material layer. The shear inducing member is mounted about a second axis (138), which is angularly displaced from the rotational axis of the container. The mill may also include an angle adjustment mechanism (140,146,148,150) for adjusting the relative angular displacement of the container rotational axis (116) and the shear member axis (138).
摘要:
An apparatus for treating a particulate material comprising; a casing defining a treating chamber having a discharge opening for permitting overflows of the material under treatment, drive means for rotating the casing at high speed to produce a centrifugal force for pressing the material in the casing against an inside wall surface of the casing, treating means disposed in the casing to be rotatable relative to the inside wall surface of the casing, and a classifier communicating with the discharge opening, whereby the discharge opening is disposed adjacent a center of rotation of the casing, and limiting means are provided adjacent the discharge opening for limiting the overflows of the material under treatment, whereby the discharge opening is defined by a tubular partition, and the limiting means comprise an annular projection defined on an inside wall of the tubular partition and that the tubular partition is continuous with a lower ring-like partition, the tubular partition and ring-like partition being rotatable coaxially with and in the same direction as the casing, and that the classifier is directly connected to the casing, the tubular partition defining a coarse particle return passage extending from the classifier to the casing.
摘要:
A grinding mill (100) for particulate material includes a rotary container (106) having an inner surface (118), a material feed for feeding the particulate material to the container, a first rotary drive (108,110,112) rotating the container about a first rotational axis (116), and a shear inducing member (126) contacting the particulate material in the container so as to induce shearing in the particulate material layer. The shear inducing member is mounted about a second axis (138), which is angularly displaced from the rotational axis of the container. The mill may also include an angle adjustment mechanism (140,146,148,150) for adjusting the relative angular displacement of the container rotational axis (116) and the shear member axis (138).
摘要:
A grinding mill has a rotating container (40) into which particulate material is fed. The container is rotated above critical speed to form a layer which is retained under high pressure against the container inner surface. Shearing discs (58) mounted inside the container induce shearing of the layer to promote particle fracture by shearing and abrasion in the pressurised layer. Fine ground material travels axially to the container discharge end (64). In one form of the invention, the container is rotated at sufficient speed to form a series of solidified zones (70) alternated with stirred zones (72) next to non-rotating shearing discs (58). These solidified zones act as solid discs rotating with the container.
摘要:
A grinding mill has a rotating container (40) into which particulate material is fed. The container is rotated above critical speed to form a layer which is retained under high pressure against the container inner surface. Shearing discs (58) mounted inside the container induce shearing of the layer to promote particle fracture by shearing and abrasion in the pressurised layer. Fine ground material travels axially to the container discharge end (64). In one form of the invention, the container is rotated at sufficient speed to form a series of solidified zones (70) alternated with stirred zones (72) next to non-rotating shearing discs (58). These solidified zones act as solid discs rotating with the container.