JP4772006B2 - Winding device for wire for fixing filter cloth of drum type filtration device - Google Patents

Description

  The present invention relates to a winding device for a wire for fixing a filter cloth of a drum type filtration device, and more particularly, a winding device for a wire for fixing a filter cloth of a drum type filtration device used when performing flotation in metal refining such as copper. About.

  For example, copper refining is performed as follows. First, dried fine powder concentrate is blown into a flash furnace by a concentrate burner simultaneously with oxygen-enriched air or high-temperature hot air, and instantaneously causes an oxidation reaction to be separated into mat and slag. At this time, since the amount of heat may be insufficient with only the oxidation reaction heat, the fuel is supplemented with fuel such as heavy oil. The mat contains about 50 to 70% copper, which is extracted from the tap hole of the flash furnace and collected. On the other hand, since about 1% of copper is also contained in the slag, it is smelted in a smelting furnace, and the copper in the slag is recovered as a mat and processed in a converter together with the mat from the flash furnace.

  The mat obtained in the flash furnace is accommodated in a converter, and air or oxygen-enriched air is blown from a plurality of tuyere. The operation is divided into a making period and a copper making period, and in the making period, iron in the mat is removed as slag. This canning period is repeated 2 to 3 times, and the produced white glue reaches a certain amount, and then enters the copper making period to obtain crude copper. The slag obtained at the time of making contains 3-5% copper, and the copper content is further recovered by separating and concentrating the copper content by flotation. Flotation is a beneficiation method in which only specific minerals adhere to and float on bubbles in water. That is, a foaming agent that generates bubbles and a trapping agent that hydrophobizes the surface of the target mineral and makes the bubbles easy to adhere are added. And if slag is thrown in in it, a bubble will adhere by a collection agent and the particle | grains containing copper will float on a liquid level. Other components such as, for example, iron settle and are separated from copper. The separated floated ore collected by flotation is dehydrated with a disk filter and dried, and then processed again in a flash furnace as copper concentrate. On the other hand, the separated tailings are dehydrated with a drum-type filtration device (so-called Oliver filter) to obtain iron concentrate. For example, Patent Document 1 (Japanese Patent Laid-Open No. 2006-307293) discloses a series of steps described above.

  The drum-type filtration device in the above-described flotation process is a typical vacuum filtration device, in which a filter cloth is wound around the surface of a rotatable drum, and the inner surface of the drum is partitioned by a small chamber, and the drum is reduced in pressure by 300 to 600 mmHg. This is a device that sucks and dehydrates the sludge adsorbed on the filter cloth surface from the inside while rotating. And in order to fix the cloth attached to the drum of the filtration apparatus, the wire is wound around the circumference | surroundings. Examples of such a drum-type filtration device include those shown in Patent Document 2 (Japanese Utility Model Laid-Open No. 5-74607) and Patent Document 3 (Japanese Utility Model Laid-Open No. 5-74629).

JP 2006-307293 A Japanese Utility Model Publication No. 5-74607 Japanese Utility Model Publication No. 5-74629

  The filter cloth of the drum-type filter used in the flotation process has a life of about one month, and the filter cloth is replaced each time. In the filter cloth replacement operation, the used filter cloth is removed from the rotating drum, a new filter cloth is attached, and a wire is wound around the filter cloth to firmly fix the filter cloth to the drum.

Conventionally, wire winding work has been performed manually. That is, after attaching the filter cloth to the rotating drum, the wire is wound and fixed on the filter cloth at the drum end, and the rotating drum is rotated little by little while hitting the wire with a hammer or the like to move the position of the wire to the multi-end side. It was done by wrapping in a spiral while shifting little by little. The wire used for winding is a stainless steel piano wire having a diameter of about 5 mm, and it has been pointed out that manual winding is a heavy burden and there is a danger in work.
Therefore, there has been a demand for a wiring device that can reduce the burden on the worker and can automatically wind the wire without manual operation.

  Accordingly, the present invention provides a drum-type filtration that can be automatically performed without relying on humans to wind a wire for fixing the filter cloth when attaching the filter cloth of a drum-type filtration device used in the flotation process. An object of the present invention is to provide a winding device for a wire for fixing a filter cloth of a device. z

In order to solve the above-mentioned problems, the present invention according to claim 1 is to provide a filter cloth for a drum-type filtration device for spirally winding a wire around the surface of the filter cloth in order to fix the filter cloth attached around the drum. In the fixing wire winding device, the wire is guided in an S shape by a rotational driving means for rotating a rotatably supported drum at a predetermined speed, and pulleys arranged in two upper and lower stages, and on the upper side. A wire guide having a predetermined inclination angle is provided, and the wire is rotated by the rotation of the drum while moving on two rows of guide rails arranged parallel to the rotation axis direction of the drum so that the wire guide can move stably. unwound, and means unwinding winding a wire helically on the surface of the filter cloth, is arranged parallel to the guide rail, it is rotated in synchronism with the rotation of the drum which is rotated by a rotational driving means And a nut member screwed to the screw shaft member moves linearly in the longitudinal direction of the screw shaft member, it means unwinding may be connected to the nut member, while moving on the guide rails by the nut member moves the drum The wire is unwound by the rotation of .
A wire is wound around one end side of a filter cloth attached around the drum rotated by the rotation drive mechanism, and the drum is rotated and moved in the direction of the rotation axis of the drum. As a result, the wire is wound spirally.

Further, the unwinding means moves on the guide rail in synchronization with the rotation of the drum rotated by the rotation driving device. As a result, the wire can be automatically wound on the filter cloth in a spiral shape.

Further, the wire unwound from the pulley is prevented by unwinding the wire unwound from the unwinding means via the wire guide.

In order to solve the above-mentioned problem, the present invention described in claim 2 is the winding device for the filter cloth fixing wire of the drum-type filtration device according to claim 1, wherein the wire is 30-60 ° with respect to the horizontal direction. The winding is performed at an angle.

  According to the winding device of the wire for fixing the filter cloth of the drum type filtration device according to the present invention, there is an effect that the wiring for spirally winding the wire on the filter cloth arranged around the drum can be automatically performed. . Therefore, conventionally, there is no need to shake the hammer to correct the position of the wire, and there is an effect that the worker can be released from dangerous work.

  According to the winding apparatus for the filter cloth fixing wire of the drum type filtration apparatus according to the present invention, the wire guide is provided and the wire is wound at an angle of 30-60 ° with respect to the horizontal direction. The wire is prevented from falling off, and stable operation can be performed.

  Hereinafter, a winding device for a filter cloth fixing wire of a drum type filtration device according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of an embodiment of a winding device for a filter cloth fixing wire of a drum type filtration device according to the present invention.

  First, the illustrated wire-wrapping device 10 for fixing a filter cloth of a drum-type filtration device is roughly a rotational drive means for rotating the drum 1 of the drum-type filtration device rotatably supported at a predetermined speed. The wire W is unwound by the rotation of the drum 1 while moving on a certain rotation driving device 30 and guide rails 13, 13 arranged parallel to the rotation axis direction (X direction) of the drum 1, and the surface of the filter cloth 3. And an unwinding device 20 as unwinding means for winding the wire W in a spiral shape.

  The rotation drive device 30 includes a crank mechanism having a drive cylinder 31 and a crankshaft 33, and the crankshaft 33 is attached to the surface of a rotation guide board 1 a provided on both side surfaces of the drum 1. Here, the rotation guide plate 1a is a disk-shaped member, and the rotation center thereof is attached to at least one side surface of the drum 1 so as to coincide with the rotation center of the drum 1, that is, the X axis. And the drive chain 5 connected with the screw shaft member 11 mentioned later is wound by the circumferential surface of the rotation guide board 1a. One end of the crankshaft 33 is attached to a mounting portion 1b provided at a position eccentric from the rotation center of the rotation guide board 1a configured as described above. On the other hand, the drive cylinder 31 operates the crankshaft 33 by moving a piston (not shown) disposed in the drive cylinder 31 by a power source such as a pressure device such as hydraulic pressure, pneumatic pressure, water pressure, or a motor. The rotation guide board 1a is rotated. As a result, the drum 1 rotates. In addition, as shown in FIGS. 2 and 3, the rotary drive device 30 can also be provided on both end surfaces of the drum 1.

  The unwinding device 20 is disposed so as to be capable of reciprocating on a guide rail 13 disposed in parallel with the rotation axis of the drum 1, that is, the X axis. The guide rails 13 are provided in two rows in two upper and lower stages so that the unwinding device 20 can move stably without rattling due to the tension of the wire W to be unwound. The wire W used for winding is a stainless steel piano wire having a diameter of about 5 mm.

  Further, the screw shaft member 11 is disposed in parallel with the guide rail 13. The screw shaft member 11 is a long shaft member having a thread groove threaded on the surface thereof, and a nut member 11a is screwed to the screw shaft member 11. When the screw shaft member 11 rotates, the nut member 11a moves linearly along the longitudinal direction on the screw shaft member 11. For example, a ball screw or the like can be used as the nut member 11a. And the unwinding device 20 is connected with this nut member 11a, and the unwinding device 20 moves to the longitudinal direction on the guide rail 13 with the movement of the nut member 11a.

  The screw shaft member 11 is connected to the drive chain 5 wound around the circumferential surface of the rotation guide board 1a of the drum 1 and is formed so that the screw shaft member 11 rotates as the drum 1 rotates. Therefore, the screw shaft member 11 rotates in synchronization with the rotation of the drum 1 rotated by the rotation driving device 30. Therefore, the winding interval and the number of windings of the wire W can be appropriately adjusted by appropriately adjusting the moving distance of the unwinding device 20 accompanying the rotation of the drum 1. For example, by adjusting the angle of the screw groove of the screw shaft member 11, the moving distance of the nut member 11a during one rotation of the drum 1 can be adjusted to be longer or shorter. If the moving distance of the nut member 11a is increased, the winding interval of the wire W is widened and the number of windings is reduced. Conversely, if the moving distance of the nut member 11a is shortened, the winding interval of the wire W is reduced and the winding number is increased. . Thereby, the winding state of the wire W around the filter cloth 3 can be appropriately adjusted. A bearing bracket 11 b is attached to both ends of the screw shaft member 11.

  The unwinding device 20 is provided with pulleys 23a and 23b for guiding the wire W. Two pulleys 23a and 23b are arranged in two upper and lower stages, and the wire W is guided from the near side to the far side on the lower side of the lower pulley 23a, and then the S is directed toward the upper pulley 23b. It is wound in the shape of a letter and then wound on the filter cloth 3 via the wire guide 24 at an angle of 30-60 ° with respect to the horizontal direction. The reason why the wire W is wound at such an angle is that winding can be performed most stably. In addition, a larger winding angle means that the distance between the unwinding device 20 and the drum 1 is short, which is inconvenient for the installation of the drum 1 and the maintenance of the winding device 10, and that the winding angle is small. Since the distance between the unwinding device 20 and the drum 1 is long, a wasteful space is occupied and workability is not good.

  As shown in FIG. 5, the wire guide 24 is a hollow guide member arranged at a predetermined inclination angle on the upper side of the unwinding device 20, and the wire W penetrates through the guide member 3. Wrapped around. The inclination angle of the wire guide 24 substantially coincides with the winding angle of the wire W and is an angle of 30-60 ° with respect to the horizontal direction. The wire guide 24 prevents the wire W from being ramped during unwinding, and prevents the wire W from falling off the pulleys 23a and 23b.

  A moving pedestal 25 that reciprocates on the guide rails 13 and 13 is attached to the surface of the unwinding device 20 opposite to the surface to which the pulleys 23a and 23b are attached. The moving pedestal 25 and the guide rail 13 constitute a so-called linear motion guide mechanism that smoothly supports and guides the movement of the unwinding device 20 accompanying the movement of the nut member 11a due to the rotation of the screw shaft member 11. . For example, a known linear movement guide mechanism that linearly moves on the guide rail 13 by a large number of balls can be adopted as the movement base 25.

Next, operation | movement of the winding apparatus 10 mentioned above is demonstrated.
First, the drum 1 to which the filter cloth 3 is attached is positioned in the vicinity of the winding device 10 so that the rotation axis (X direction) of the drum 1 is parallel to the screw shaft member 11 and the guide rail 13. Then, the wire W is wound around the pulleys 23a and 23b, wound around the surface of the filter cloth 3 via the wire guide 24, and the wire W is fixed. The fixing of the wire W is not particularly limited, and may be fixed by an appropriate method.

  When the driving cylinder 31 is operated by a drive source (not shown), the crankshaft 33 is driven to rotate the mounting portion 1b provided at a position eccentric from the rotation center of the rotation guide board 1a. As a result, the drum 1 starts rotating and the wire W is wound up and wound around the surface of the filter cloth 3. At the same time, the screw shaft member 11 is rotated by the drive chain 5 attached to the rotation guide panel 1a, and the nut member 11a moves on the screw shaft member 11, whereby the unwinding device 20 moves linearly on the guide rail 13. . As the unwinding device 20 moves, the winding position of the wire W wound around the filter cloth 3 moves, and the wire W is wound around the filter cloth 3 in a spiral shape.

  When the unwinding device 20 moves to the vicinity of the opposite end of the drum 1, the rotation driving device 30 is stopped and the winding of the wire W is stopped. Then, the wire W is cut at an appropriate position and fixed to the drum 1 by an appropriate method, whereby the winding of the wire W is completed. Thereafter, the above operation is repeated.

  As described above, the preferred embodiment of the present invention has been described in detail. However, the present invention is not limited to the specific embodiment, and within the scope of the gist of the present invention described in the claims, Needless to say, various modifications and changes are possible.

It is a perspective view of one Embodiment of the winding apparatus of the wire for filter cloth fixation of the drum type filtration apparatus which concerns on this invention. It is a front view of the winding apparatus of the filter cloth fixing wire of FIG. It is a top view of the winding apparatus of the wire for filter cloth fixing of FIG. It is a right view of the winding apparatus of the wire for filter cloth fixing of FIG. It is a perspective view of an unwinding device.

Explanation of symbols

W wire 1 drum 1a rotation guide board 1b mounting portion 3 filter cloth 5 drive chain 10 winding device 11 screw shaft member 11b bearing bracket 13 guide rail 20 unwinding device 23a, 23b pulley 24 wire guide 25 moving base 30 rotation driving device 31 driving Cylinder 33 crankshaft

Claims (2)

In a winding device for a filter cloth fixing wire of a drum type filtration device for spirally winding a wire around the surface of the filter cloth in order to fix the filter cloth attached around the drum,
Rotation driving means for rotating a drum rotatably supported at a predetermined speed;
The drum is guided in an S shape by pulleys arranged in two upper and lower stages, and has a wire guide arranged at a predetermined inclination angle on the upper side, so that the rotation shaft of the drum can be moved stably. Unwinding means for winding the wire spirally around the surface of the filter cloth, the wire being unwound by the rotation of the drum while moving on two rows of guide rails arranged parallel to the direction;
A nut member that is arranged in parallel with the guide rail and that is screwed into a screw shaft member that rotates in synchronization with the rotation of the drum that is rotated by the rotation driving means and moves linearly in the longitudinal direction of the screw shaft member;
Equipped with a,
The unwinding means is connected to the nut member, and a wire is unwound by rotation of the drum while moving on the guide rail as the nut member moves. Wire wrapping device for filter cloth fixing wire mold filter. In the winding apparatus of the filter cloth fixing wire of the drum type filtration apparatus according to claim 1 ,
The wire is wound at an angle of 30-60 [deg.] With respect to the horizontal direction.

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