摘要:
The invention relates to a device for separating ferromagnetic particles from a suspension. Said device comprises a tubular reactor having at least one magnet, a suspension being able to flow through the reactor. The reactor (2) comprises at least one extraction line (3) branching off from the reactor (2), to which extraction line a negative pressure can be applied and which extraction line is surrounded by a permanent magnet (4) in the region of the branching.
摘要:
Continuous methods for magnetic ore separation that operate mechanically using drum, band or roll separators are known from the prior art. According to the present invention, a magnetically operating method is developed such that it can be operated in a continuous mode of operation. The materials used are recycled, particularly the magnetite as hydrophobic magnetizable material and the diesel oil as de-agglomeration auxiliary material. The devices and units of the prior art can be used in the related system, and the system is completed by installing a magnetic separator (40) within the meaning of the method according to the invention.
摘要:
The present invention relates to agglomerates made of at least one particle P, which is rendered hydrophobic at the surface using at least one first surface-active substance, and at least one magnetic particle MP, which is rendered hydrophobic at the surface using at least one second surface-active substance, to a method for the production thereof, and to the use of said agglomerates.
摘要:
The present invention relates to a method for separating at least one first material from a mixture containing said at least one first material and at least one second material, comprising at least the following steps: (A) bringing the mixture containing at least one first material and at least one second material into contact with at least one surface-active substance, optionally in the presence of at least one dispersant, wherein the surface-active substance bonds to the at least one first material; (B) optionally adding at least one dispersant to the mixture obtained in step (A) in order to obtain a dispersion; (C) treating the dispersion from step (A) or (B) with at least one hydrophobic magnetic particle so that the at least one first material, to which the at least one surface-active substance is bonded, and the at least one magnetic particle attach; (D) separating the attachment product from step (C) from the mixture by applying a magnetic field in order to obtain the attachment product and a mixture M1 depleted of the attachment product, and repeating the steps (A) to (D).
摘要:
The invention relates to a method for operating a paper machine (10) for producing paper, paperboard or cardboard, comprising a conveyor device (16) by means of which at least one fibrous material web (14) produced from a fibre suspension is conveyed in a conveyor direction, at least one drying region (20) in which the fibrous material web (14) which is conveyed through said drying region (20) is dried using at least one drying cylinder (26) to which a first medium for drying the fibrous material web (14) is supplied, and at least one smoothing cylinder (28) which connects to said drying cylinder (26) in the conveyor direction and by means of which said fibrous material web (14) is smoothed on at least one side, wherein a second medium is fed to the smoothing cylinder (28) for the purpose of heating said smoothing cylinder (28), and the first medium is conducted away from the drying cylinder (26) and is supplied, as a source of heat, to a heat pump (34) by means of which the second medium is heated.
摘要:
What is indicated is a heat accumulator (1) for storing thermal energy, which comprises a container (2) with a longitudinal axis (100) extending horizontally, wherein the container (2) has a heat storage material (5) in the form of a plurality of stone-like elements (4). According to the invention, the container (2) has in a first portion (61) a first opening (81) and, in a second portion (62), a second opening (82) which is vertically offset with respect to the first opening (81), wherein an average diameter of the stone-like elements (4) arranged in the first portion (61) is larger than an average diameter of the stone-like elements (4) arranged in the second portion (62).