摘要:
An ultrafine powder sieving machine with bi-directional airflow. A sieving cylinder (2) having a downward opening is disposed at a middle portion of an inner cavity of a machine case (1). A cylinder port of the sieving cylinder (2) is joined to an upper opening of a funnel (3). An upper negative pressure chamber (4) is in communication with an external draft inducing fan (5). A U-shaped rotary gas spraying pipe formed by a horizontal pipe (6) and a vertical pipe (7) is disposed between the sieving cylinder (2) and the machine case (1). An air input port of a blowing pipe (9) is in communication with a blowing port of an external blower (11). A feeding pipe (12) is disposed in the sieving cylinder (2). A buffering umbrella (13) is disposed above a discharging port of the feeding pipe (12). The phenomena of blocked sieving holes incurred by blocks of accumulated light and small micron-scale materials on the sieving screen are prevented, so that large-scale industrial production can be applied to sieving of ultrafine powders greater than 500 mesh.
摘要:
Container (1) for sieving painting powder for a powder coating plant, comprising: - a sieving chamber (2) to sieve painting powder to be sieved, - a collection chamber (3) for the sieved painting powder, - at least one sieve (4) arranged next to at least one of the outer surfaces (2b, 2c, 2d) of said sieving chamber (2), wherein said sieving chamber (2) is arranged at least partially, and preferably completely, inside said collection chamber (3) and comprises at least one opening (2a) for the entry/exit of powder.
摘要:
The value-minerals are captured by gravity-separation, from a low-grade slurry. The ratio of liquids-to-solids in the slurry affects the efficiency of capture, and an ideal liquids/solids ratio is the ratio at which the efficiency of capture is at a maximum. The ideal ratio is different for different particle-sizes. The procedure includes dewatering the slurry, dividing the dry particles by particle-size, and feeding the several size-divided dry-streams into respective capture-stations. Prior to each dry-stream entering its respective capture-station, make-up water is added to the dry-stream in such quantity as to bring the liquids/solids ratio up to the ideal, for that particle-size. The procedure makes it simple to provide accurate measurement of, and accurate control of, the liquids/solids ratio.
摘要:
A garbage disposer and a method of controlling the same are disclosed. The method includes rotating the storage body (41) to cause the communication hole (42) to communicate with the inlet port (33), rotating the agitation unit (5) to open the communication hole, crushing garbage by means of the crushing unit (2) and supplying the crushed garbage to the inlet port, rotating the agitation unit to close the communication hole, and concurrently rotating the agitation unit and the storage body at a predetermined first RPM such that the communication is kept closed so as to dehydrate garbage contained in the storage body.
摘要:
The invention relates to a pressure screen for cleaning a fibrous stock suspension having a screen element (2) which is of rotationally symmetrical configuration about a screen axis (1) and divides the pressure screen into an inlet chamber (3) and an accepted stock chamber (4), wherein the inlet chamber (3) is connected at one axial end to a suspension inlet (5) and at the opposite axial end to a reject outlet (6), and the accepted stock chamber (4) is connected to an accepted stock outlet (7), and a rotor (8) with rotor vanes (9) is situated in the inlet chamber (3), the rotational axis (10) of which rotor (8) corresponds to the screen axis (1), and which rotor (8) rotates relative to the screen element (2), wherein the rotor vanes (9) are arranged distributed over a plurality of circumferential planes (11) of the rotor (8) which run perpendicularly with respect to the rotational axis (10). Here, the energy consumption and the risk of clogging can be reduced by virtue of the fact that the width of the annular gap (12) between the rotor (8) and the screen element (2) decreases from the suspension inlet (5) to the reject outlet (6). (Figure 1)
摘要:
An ultrafine powder sieving machine with bi-directional airflow. A sieving cylinder (2) having a downward opening is disposed at a middle portion of an inner cavity of a machine case (1). A cylinder port of the sieving cylinder (2) is joined to an upper opening of a funnel (3). An upper negative pressure chamber (4) is in communication with an external draft inducing fan (5). A U-shaped rotary gas spraying pipe formed by a horizontal pipe (6) and a vertical pipe (7) is disposed between the sieving cylinder (2) and the machine case (1). An air input port of a blowing pipe (9) is in communication with a blowing port of an external blower (11). A feeding pipe (12) is disposed in the sieving cylinder (2). A buffering umbrella (13) is disposed above a discharging port of the feeding pipe (12). The phenomena of blocked sieving holes incurred by blocks of accumulated light and small micron-scale materials on the sieving screen are prevented, so that large-scale industrial production can be applied to sieving of ultrafine powders greater than 500 mesh.
摘要:
In a circular-cylinder sieve, a first frame (7) is provided with a radially provided first ring-like plate (7a) and a ring-like plate (7b) extending from an inner end portion of the first ring-like plate (7a) to the inner side in an axial direction (X) of the sieve. The ring-like plate (7b) is of a shape where an end portion of the plate (7b) is bent inward. A ring-like ridge portion (2a) is fitted in a ring-like space (K1) defined by a ring-like recess portion (10a) and the first frame (7). The ring-like plate (7b) presses the ring-like ridge portion (2a) from radially outward to inward, and therefore the ring-like ridge portion (2a) does not come out. Through-holes (7c)(counterbored holes) are formed in the first frame (7) along the axial direction (X). Four of the through-holes (7c) are used for fixing rods (6) and flat-head screws (6f) are fitted in them, and in the rest, flat-head screws (20) (see Fig. 1) are fitted so as to reinforce the joint between the first frame (7) and a hold-down frame (11).
摘要:
Um eine Separiervorrichtung dahingehend weiterzubilden, dass ein dauerhaftes Zusetzen einer Separierkulisse vermieden wird, wird mit der Erfindung vorgeschlagen, eine Separiervorrichtung mit einem im Wesentlichen zylindrischen, um eine Achse rotierbaren Separiertrommelelement, welches wenigstens eine vom Separiertrommelinnenraum zur Außenseite führende, stutzenartig ausgebildete Separierkulisse mit einem Separierquerschnitt aufweist, wobei eine Räumeinrichtung zum Räumen des lichten Querschnitts der Separierkulisse in wenigstens einer Position bei der Rotation der Separiertrommel vorgesehen ist.
摘要:
The sieving device has an adjustable sieve to achieve variable fractionation. The sieve consists of at least two elements (1,2) installed one on top of the other and have sieving perforations (3). To change the degree of sieving the elements are movable in relation to each other. The sieving perforations of the various elements may have different or identical geometry and/or size. The sieving elements are pressed together by clamping devices (5). The sieving elements may be cylindrical in their construction and formed as a sieving drum.