JPH0416206B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a wastewater foreign matter removal device that removes elongated foreign matter such as fiber waste and hair, and in particular to a heat exchanger that uses wastewater from hotels, condominiums, etc. as a heat source fluid. The present invention relates to a foreign matter removal device suitable as a device for removing foreign matter from the waste water for a vessel.

(Prior art) A heat exchanger that uses heated waste water as a heat source fluid to reuse the thermal energy of heated waste water from hotels, condominiums, etc. In order to prevent clogging, a foreign matter removal device is placed on the inflow side of the wastewater into the heat exchanger.

One type of foreign matter removing device is one in which a foreign matter removing means using a mesh or lattice screen is disposed in the drainage flow path, and the foreign matter is caught on the screen. However, in such a foreign matter removing device, since foreign matter is not removed from the screen, the screen becomes clogged in a short period of time. When the screen becomes clogged in this way, the screen must be replaced or cleaned each time, and the drainage must be temporarily stopped at that time. In addition, this conventional foreign matter removal device
The flow rate of wastewater from which foreign matter has been removed varies depending on the amount of foreign matter clogged in the screen.

Another type of foreign matter removing device is one in which a plurality of screens are moved along a closed loop, and foreign matter is received by the screens during the movement of the screens (Japanese Patent Publication No. 51-49148). However, this foreign matter removal device also does not remove foreign matter from the screen, so the screen becomes clogged in a short period of time.

In yet another type of foreign matter removal device, a plurality of brushes are rotated and moved along a closed loop, foreign matter is received by the brushes during the movement of the brushes, and foreign matter received by the brushes is removed from the brushes. Some items are removed by another brush that is rotated in the opposite direction to the brush during movement (Special Publication No. 53)
-4262). However, with this foreign matter removal device,
Many foreign objects are not removed from one brush movable along the closed loop to another, and therefore the brushes movable along the closed loop become clogged in a short period of time.
Further, in this foreign matter removing device, since foreign matter on other brushes is not removed, the other brushes become clogged in a short period of time.

(Objective of the Invention) An object of the present invention is to be able to reliably remove foreign matter from a foreign matter removing means and to lengthen the period during which the foreign matter removing means is clogged with foreign matter.

(Structure of the Invention) The present invention provides a foreign matter removal device comprising a tank having an inlet for wastewater containing foreign matter such as hair and an outlet for wastewater from which the foreign matter has been removed, and a foreign matter removal means disposed within the tank. a foreign object having a plurality of collectors spaced along the closed loop for moving the foreign object in the waste water from one position to another in the closed loop, the foreign object being moved along the closed loop in a generally vertical plane; a removal means and a means for receiving foreign matter transferred by said collector, said collector having a base moved along a closed loop, a number of needle-like members extending from said base in the direction of movement of said collector; A plate-shaped slider having a plurality of rods extending parallel to the needle-like member from a base, a plurality of holes penetrated by the rods, and a plurality of holes penetrated by the needle-like member, the slider having a plurality of rods extending parallel to the needle-like member from the base, and a plurality of holes penetrated by the rods, and a plurality of holes penetrated by the needle-like member. and a slidably supported slider.

(Effects of the Invention) Foreign matter within the tank is received by a collector that moves along a closed loop within the tank, and is transferred to the foreign matter receiving means by the collector. Foreign matter adhering to the needle-like member of the collector is removed from the needle-like member by moving the slider relative to the needle-like member.

Therefore, according to the present invention, the foreign matter removing means does not become clogged with foreign matter for a long period of time, and there is no need to replace the foreign matter removing means for a long period of time.

(Example) Hereinafter, an example of the present invention shown in the drawings will be described.

Foreign matter removal device 10 shown in FIGS. 1 and 2
includes a tank 12. The tank 12 contains waste water 1 containing elongated foreign matter such as hair, fiber waste, and lint.
4 and an outlet 18 for the waste water 14 from which foreign matter has been removed. Inlet 16
is formed at the upper part of the tank 12, and the outlet 1
8 is formed at the bottom of the tank 12. The waste water flowing out from the outlet 18 is supplied to a heat exchanger or the like.

Inside the tank 12, a foreign matter removal mechanism 20 is arranged. The foreign matter removal mechanism 20 includes a drum 22 rotatably supported on the tank 12 around a horizontal axis.
Equipped with The drum 22 is fixed to a rotating shaft 24 that horizontally passes through the tank 12 so as to be rotatable, and the rotating shaft 24 is connected to a motor 26 provided outside the tank 12 via a connecting member 28 . The drum 22 is equipped with a plurality of brush-shaped collectors 30 arranged at intervals in the circumferential direction of the drum 22 to transfer foreign matter in the waste water 14 from the main stream 14a of the waste water flowing from the inlet 16 to the outlet 18 to the tributary stream 14b. It is located at a distance.

Each collector 30 has a base 32 extending radially from the drum 22 and a plurality of needle-like members 34 extending from the base to one side in the direction of rotation of the drum 22.
and a plurality of rods 36 extending from the base 32 in parallel with the needle-like member 34, and a plate-shaped slider 38 is supported on the rod 36 so as to be slidable in the longitudinal direction of the rod 36. Slider 38 has a plurality of holes for receiving rod 36 and a plurality of holes for receiving needle member 34. The rod 36 is the needle-like member 3
4, so that the slider 38 can slide from the base 32 side to the tip of the needle member 34. At the tip of the rod 36 is a slider 38.
A retaining ring 40 is provided to prevent the rod from falling off the rod 36.

During operation, the collector 30 is moved counterclockwise in FIG. 1 along a circular closed loop by the rotating shaft 24 and the drum 22 being rotated by the motor 26, that is, in the direction in which the needle-shaped member 34 protrudes. . At this time, the collector 30 is moved in a direction opposite to the main stream 14a, that is, toward the inlet 16, with the needle-like member 34 facing substantially upward at the main stream 14a of the drainage, and the needle-like member 34 is moved at the tributary stream 14b. Branch 14b with 34 facing almost downward.
is moved in the direction of , that is, downward.

Therefore, when the collector 30 is moved upstream from the main stream 14a, the slider 38 is moved toward the base 32 by its own weight, and foreign matter in the drainage toward the outlet 18 is moved to the needle member 34. It is locked. The foreign matter retained by the needle member 34 is moved to the side of the tributary stream 14b together with the collector 30.
When the collector 30 is moved to the tributary stream 14b, the slider 38 is moved toward the retaining ring 40 by its own weight, so that the foreign matter retained on the needle member 34 is removed from the collector 30 by the movement of the slider 38. After that, it is lowered by its own weight and water flow.

Inside the tank 12, there is also a foreign object receiving means, i.e., a bucket 42, for receiving foreign objects moved to the side of the tributary stream 14b by the collector 30, at the inlet 16.
Flow of waste water from to outlet 18 and collector 3
It is placed in a place where it does not interfere with the movement of 0. The bucket 42 has the shape of a box that opens upward with a mesh to receive foreign matter discharged from the collector 30, prevent the foreign matter from flowing to the outlet 18, and allow wastewater to flow toward the outlet 18. It is made in An opening 44 is formed in the tank 12 for taking the bucket 42 in and out of the tank 12, and the opening 44 is closed by a lid 46.

According to the foreign matter removing device 10, the foreign matter retained on the needle member 34 is moved to the collector 30 by the slider 38.
Since the collector 30 can be prevented from being clogged with foreign matter for a long period of time, the flow rate of wastewater from which foreign matter has been removed can be maintained constant for a long period of time. There is no need to replace it for a long time.

Foreign matter removal device 50 shown in FIGS. 3 and 4
A foreign matter removal mechanism 20 including a drum 22, a rotating shaft 24, a motor 26, a connecting member 28, and a plurality of collectors 30 is disposed within a tank 52. The tank 52 has an inlet 16 and an outlet 18 for wastewater.
A drainage channel 54 is provided outside the tank 52 for discharging foreign matter together with drainage water, and a foreign matter receiving means, that is, a receiving wall 56 is provided for receiving foreign matter moved toward the drainage channel 54 by the collector 30. have The receiving wall 56 prevents the foreign matter from flowing to the outlet 18 by guiding the received foreign matter to the drainage channel 54 . A plurality of holes 58 are bored in the receiving wall 56 through which drainage water can pass, and a valve 60 is arranged in the drainage channel 54. Drainage channel 54 can be connected to a sewer, for example.

During operation of the foreign matter removal device 50, when the collector 30 is moved along a circular closed loop by the motor 26, the foreign matter in the waste water is removed by the collector 30 from the outlet 1.
When it is moved upward in the direction opposite to the direction of the main flow 14a of the drainage water to the 8, it is stopped by the needle member 34. The foreign matter retained by the needle member 34 is moved to the side of the drainage tributary 14b together with the collector 30, and
When the slider 3 is moved to the side of the tributary 14b,
8, and is then moved by its own weight and water flow toward the receiving wall 56 and the drain channel 54, and is discharged from the drain channel 54 together with the water in the tank 52.

According to this foreign matter removing device 50, the collector 30
Since the foreign matter from the tank 52 is received by the receiving wall 56 and discharged from the drain channel 54 together with the drainage inside the tank 52, the foreign matter can be discharged from the tank 52 to the sewer.

Foreign matter removal device 70 shown in FIGS. 5 and 6
The foreign matter removal mechanism 72 has a structure in which each collector 30 is supported by an endless moving body 74 that moves along an oval closed loop to increase the moving distance of the collectors 30 and remove more foreign matter. It is located within 12. The moving body 74 is wound around a drum 78 that is fixed to a pair of shafts 76 that are spaced apart in the vertical direction. Both shafts 76 rotatably pass through the tank 12, and each shaft 76
They are connected to each other by a sprocket 80 fixed to the sprocket 6 and a chain 82 hanging from the sprocket 80. One shaft 76 is connected to the connecting member 28
The motor 26 is connected to the motor 26 via the motor 26. Note that the sprocket 80 and chain 82 are connected to the tank 1.
It may be placed outside of 2.

When the foreign matter removing device 70 is activated, when the collector 30 is moved along an elliptical orbit by the motor 26,
The collector 30 collects foreign substances in the wastewater from the main stream 14 of the wastewater.
It is stopped by the needle-like member 34 when it is moved upward in the opposite direction to the direction a. The foreign matter retained on the needle member 34 is moved together with the collector 30 to the side of the drainage tributary 14b, and when the collector 30 is moved to the side of the tributary 14b, it is removed from the collector 30 by the slider 38, and then its own weight and is moved into the bucket 42 by the water flow.

According to the foreign matter removal device 70, since the distance that the collector 30 is moved in the direction opposite to the flow direction of the waste water is long, more foreign matter in the waste water can be removed.

The foreign matter removal device 90 shown in FIG. 7 uses the tank 52 of the foreign matter removal device 50 shown in FIGS. Collector 30 inside
A foreign matter removing mechanism 72 shown in FIGS. 5 and 6 is disposed, which is moved by a motor 26 along an oval closed loop.

Therefore, when the foreign matter removing device 90 is operated, when the collector 30 is moved along the oval closed loop by the motor 26, the foreign matter in the waste water is removed from the collector 30.
is locked by the needle-like member 34 when it is moved upward in the direction opposite to the direction of the main flow 14a of the drainage to the outlet 18. The foreign matter retained on the needle member 34 is moved by the collector 30 to the side of the drainage tributary 14b, and when the collector 30 is moved to the side of the tributary 14b, it is removed from the collector 30 by the slider 38, and then its own weight and The water is moved toward the drain channel 54 by the water flow, and is discharged from the drain channel 54 together with the water in the tank 12 . The receiving wall 56 prevents foreign matter received from the collector 30 from flowing to the outlet 18 .

Foreign matter removal device 110 shown in FIGS. 8 and 9
The tank 112 has an inlet 116 for the waste water 114 and an outlet 118 for the waste water from which foreign matter has been removed.
It has first and second discharge passages 120 and 122 for discharging excess wastewater in the tank 112 to the sewer. The first discharge passage 120 is formed at the lower part on the inlet 116 side, and the second discharge passage 122 is formed at the lower part on the outlet 118 side.

The first and second discharge passages 120, 122 include
Solenoid valves 124, 126 and discharge passages 120, 122
First and second foreign object receiving means or buckets 128, 130 are arranged for receiving foreign objects flowing through the container. The buckets 128, 130 receive foreign matter flowing through the discharge channels 120, 122, and prevent the foreign matter from flowing to the drain ports 132, 136.
It is shaped like a box opening upwards with a screen to allow drainage to flow towards drains 132, 136. The tank 112 has a bucket 128,
Openings 137 and 138 are formed to allow the discharge passages 120 and 122 to be taken in and out, and these openings are closed by lids 140 and 142. The first and second discharge passages 120, 122 are opened and closed by electromagnetic valves 124, 126 when buckets 128, 130 are taken in and out of them. The buckets 128 and 130 may not be provided.

Inside the tank 112 there is a collector 3 for foreign objects.
A first foreign matter removing mechanism 144 having a structure in which the foreign matter removing mechanism 144 moves along a circular orbit is disposed on the side of the inlet 116. Like the foreign matter removing mechanism 20 described above, the first foreign matter removing mechanism 144 includes a drum 22 rotatably supported by the tank 112 around a horizontal axis, and a drum 22 that supports the drum 22 and rotates the tank 112 in the horizontal direction. It includes a rotating shaft 24 that can pass through the drum 22, and a plurality of brush-shaped collectors 30 fixed to the drum 22. A rotating shaft 24 supporting the drum 22 is connected to a motor 26 provided outside the tank 112, and is rotated clockwise in FIG. 8 by the motor.

Like the foreign material removing mechanism 20 described above, when the collector 30 is moved along the circular orbit by the motor 26, the first foreign material removing mechanism 144 opens the inlet port 116.
Foreign matter in the waste water flowing into the tank 112 from the collector 30 is retained by the collector 30, and the foreign matter is released from the needle member 34 by the slider 38 of the collector 30. Thereby, the foreign matter is moved toward the first drain path 120 by its own weight and the water flow toward the first drain path 120 .

The inclined wall of the inlet portion of the first discharge channel 120 has the function of a receiving wall 146 for receiving foreign matter released from the collector 30 and the function of a partition wall for excess drainage in the tank 112. . Therefore, the foreign matter received by the receiving wall 146 is flowed into the first discharge path 120 together with the excess drainage water, and is stored in the bucket 128. Excess drainage is drained from drain port 13.
2 and then discharged to the sewer.

Inside the tank 112, there is also a second foreign matter removal mechanism 148 downstream of the first foreign matter removal mechanism 144.
is located. Second foreign object removal mechanism 148
includes a rotating shaft 150 rotatably supported by the tank 112 and extending substantially horizontally. The rotating shaft 150 is connected to a motor 152 disposed outside the tank 112, and is rotated counterclockwise in FIG. 8 by the motor 152.

A plurality of fixed plates 154 are arranged on the rotating shaft 150 at intervals in the longitudinal direction of the rotating shaft 150. Each fixing plate 154, as shown in FIG.
It has an oval shape and a circular hole 156 formed in the center. A spacer 158 is fitted into the hole 156 for rotatably supporting the fixed plate 154 on the rotating shaft 150. The fixed plate 154 is attached to the rotating shaft 150 to catch foreign objects.
at least one abutment 1 extending in the radial direction of the
It has 60.

The second foreign object removal mechanism 148 also includes a stopper 162. The stopper 162 is the tank 11
2, and is engaged with a receiving portion 160 of the fixed plate 154 to maintain the fixed plate 154 in a posture in which the receiving portion 160 extends substantially horizontally. As a result, the waste water flowing toward the outlet 118 passes between the receiving portions 160, and at this time, foreign matter is stopped by the receiving portions 160.

A rotating shaft 15 is provided between each of the fixed plates 154.
A generally circular rotary plate 164 mounted at 0 is disposed. As shown in FIG. 11, each rotary plate 164 has a plurality of members, ie, protrusions 166, that transport foreign matter as the rotary plate rotates.
The protrusion 166 extends radially from the outer periphery of the rotating plate 164, as shown in FIG.

When the second foreign matter removal mechanism 148 is activated, the rotating shaft 1
50 is rotated by the motor 152 in the counterclockwise direction in FIG.
4 in the same direction. For this reason,
As the rotary plate 164 rotates, the protruding portion 166 is rotated in the same direction through the space between the receiving portions 160, locks the foreign matter received by the receiving portion 160, and directs the foreign matter to the second discharge path 122. Transfer to the side.

The upper part of the second discharge passage 122 has a protrusion 166
receives the foreign matter transferred by the bucket 1
A guide plate 168 is arranged to guide the guide plate 30. The guide plate 168 is formed with a plurality of holes that allow drainage to pass through but prevent foreign matter from passing through.

The waste water that has flowed into the tank 112 from the inlet 116 of the foreign matter removal device 110 passes through the first foreign matter removal mechanism 144 and is then removed from the first foreign matter removal mechanism 1 by passing through the first foreign matter removal mechanism 144.
Foreign matter is removed by 44. A portion of the wastewater that has passed through the first foreign matter removal mechanism 144 flows into the first drainage channel 120 and is discharged from the first drainage channel 120 to the sewer. The other part of the waste water that has passed through the first foreign body removal mechanism 144 is transferred to the second foreign body removal mechanism 1.
48 to the second drainage channel 122, and the remaining drainage water flows to the receiving part 160 of the second foreign matter removal mechanism 148.
It flows to the outlet 118 through the gap.

When the waste water passes between the receiving parts 160, foreign substances in the waste water are caught and stopped by the receiving parts 160. The foreign object stopped by the receiving part 160 is removed from the protruding part 166 as the protruding part 166 rotates.
The guide plate 16 is transferred to the second drainage channel 122 side from the second foreign object removal mechanism 148.
8 to the second drainage channel 122 and received in the bucket 130.

According to the foreign matter removal device 110, the first and second foreign matter removal mechanisms 144, 148 are provided in the tank 112.
Because of the arrangement of foreign matter removal devices 10, 50, 7
0,90, from the outlet 118 to the tank 112
It is possible to remove more foreign substances from wastewater flowing out.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a first embodiment of the foreign matter removing device of the present invention, FIG. 2 is a sectional view taken along the - line in FIG. 1, and FIG. 3 is a sectional view of the foreign matter removing device of the present invention. 4 is a sectional view taken along the - line in FIG. 3; FIG. 5 is a sectional view showing a third embodiment of the foreign matter removal device of the present invention; FIG. 6 is a sectional view taken along the - line in FIG. 5, FIG. 7 is a sectional view showing a fourth embodiment of the foreign matter removing device of the present invention, and FIG. 8 is a sectional view of the foreign matter removing device of the present invention. 9 is a sectional view taken along the - line in FIG. 8, and FIG. 10 is a front view showing an example of the fixing plate used in the foreign matter removal device of FIG. 8. , FIG. 11 is a front view showing an embodiment of the rotary plate and protrusion used in the foreign matter removing device of FIG. 8. 12,52,112: Tank, 14,114:
Drainage, 16, 116: Inlet, 18, 118: Outlet, 20, 72, 144, 148: Foreign matter removal mechanism, 22: Drum, 30: Collector, 32: Base, 34: Needle member, 36: Rod, 38: Slider, 42, 128, 130: Bucket, 54,
120, 122: Drainage channel, 56: Reception wall, 74:
Moving body, 78: Drum, 150: Rotating shaft, 15
4: Fixed plate, 158: Spacer, 160: Receiving part, 162: Stopper, 164: Rotating plate, 16
6: Projection, 168: Guide plate.

Claims (1)

[Scope of Claims] 1. A tank having an inlet for wastewater containing foreign matter such as hair and an outlet for wastewater from which the foreign matter has been removed, and a foreign matter removal means disposed within the tank that is substantially vertical. foreign matter removal means having a plurality of collectors spaced along said closed loop for moving foreign matter in said waste water from a predetermined position to another position in said closed loop; the collector includes a base that is moved along a closed loop, a number of needle-like members extending from the base in the direction of movement of the collector, and means for receiving the foreign matter transferred from the base. A plate-shaped slider having a plurality of rods extending parallel to the rod, a plurality of holes penetrated by the rods, and a plurality of holes penetrated by the needle-shaped member, and supported by the rod so as to be slidable in the longitudinal direction thereof. A device for removing foreign matter from wastewater, including a slider. 2. The collector is attached to a driven drum that is rotatably supported around an axis extending substantially horizontally in the tank, extending in a radial direction of the drum and being spaced apart in a circumferential direction, and A device for removing foreign matter in waste water according to claim 1, which extends in the radial direction of the drum. 3. The collector is an endless moving body that is rotatably supported in the tank around an axis extending in a substantially horizontal direction and that is wound around a plurality of driven drums that are arranged parallel to each other at intervals. The device for removing foreign matter in drainage according to claim 1, which is installed at intervals in the moving direction of the moving body and extends from the moving body in a direction intersecting the moving direction. 4. The foreign matter removing means further includes a driven rotating shaft rotatably supported by the tank and extending substantially horizontally, and a plurality of driven rotating shafts arranged substantially parallel to the rotating shaft at intervals in the longitudinal direction thereof. a plurality of fixing plates each having at least one receiving portion extending in a radial direction of the rotating shaft from the fixing plate to stop the foreign object; a stopper for maintaining the posture; and a plurality of rotating plates rotatably arranged between the fixed plates and attached to the rotating shaft, each of which has at least one protrusion extending in the radial direction of the rotating shaft. A rotating plate, wherein the rotating shaft, the fixed plate, the stopper, and the rotating plate are arranged downstream of a movement range of the collector.
A device for removing foreign matter from wastewater as described in section.