JP3861080B2 - Vibrating solid-liquid separator - Google Patents

Description

  The present invention relates to an apparatus for separating a solid from a liquid containing solids, and more particularly to an apparatus for separating a solid from a liquid while sending the solid and the liquid through a vibrating conveyance path made of a wire mesh.

  2. Description of the Related Art Conventionally, solid-liquid separation devices that separate solids from liquids containing solids have used a vibration feeder that uses a filter medium such as a wire mesh as a conveyance path (see, for example, Patent Documents 1 to 3).

  By the way, there are things such as glass, metal or synthetic resin bottles, boxes, trays, etc., which are attached with paper labels for displaying various information such as contents and delivery destinations. The container is washed and reused repeatedly, and the paper label is peeled off from the container by the pressure of the washing liquid at the time of washing.

  As the cleaning liquid used for cleaning the container as described above, water or water to which a surfactant is added is used. For cleaning, for example, a large amount of cleaning liquid such as 500 liters per minute is required. It is common to recycle and reuse.

  However, the cleaning solution after cleaning contains strips of paper labels peeled from the container and adhesive debris for label application, and water-insoluble adhesives are often used. Unless these strips and adhesive residue are removed from the cleaning waste water, they cannot be reused as cleaning liquid.

  Therefore, it is necessary to separate these contaminants from cleaning wastewater containing contaminants such as paper label strips and adhesive residue, and the conventional solid-liquid separation device described above is used for this separation. Then there are the following problems.

  The main use purpose of each of the above-mentioned conventional apparatuses is that the apparatus of Patent Document 1 is drying synthetic resin pellets, the apparatus of Patent Document 2 is separating excess water from rice immersed in water, and the apparatus of Patent Document 3 is muddy water. It is intended for separation of earth and sand from slag, that is, separation of solids and liquids that are relatively easy to separate, and absorbs the cleaning liquid like the above-mentioned paper label strips and adhesive residue to swell and stick. If you try to separate what you have, the filter media will be clogged, and the contaminants will be scattered after separation due to the vibration of the transport path, and the filter media must be fine. Accordingly, the strength is lowered, so that a large amount of cleaning wastewater is supplied to the surface of the filter medium, so that it is easily damaged and a large amount of separation treatment is difficult.

Conventionally, when separating the above-mentioned contaminants that absorb moisture, a fine filter cloth 51 made of synthetic fiber is passed over a water tank 52 as shown in FIG. 5 and washed on the filter cloth. Wastewater is supplied to collect contaminants on the filter cloth.
Since the filter cloth is immediately clogged with contaminants, the filter cloth is fed out sequentially from the filter cloth roll 53. The collected filter cloth is collected by folding, and the recovered filter cloth 54 is discarded as non-combustible material. Is done.

Therefore, in the conventional separation method described above, the filter cloth must be manually drawn out and collected, and the management is complicated. The filter cloth is expensive but must be disposable, and the purchase cost of the filter cloth is also high. In addition to being bulky, there is a problem that disposal of the filter cloth after use is expensive.
Japanese Patent Laid-Open No. 7-256637 (pages 1 to 4 and FIG. 1) JP-A-10-165718 (pages 1 to 4 and FIGS. 1 to 5) Japanese Patent Laid-Open No. 2000-117014 (second page and FIG. 4)

  In the present invention, even if the contaminant is a solid that absorbs moisture and has stickiness, the solid can be reliably separated from the liquid, and the processing amount is large. It is an object of the present invention to provide a vibration type solid-liquid separation device that can be recovered without being scattered around, and that can be used for a long time with little risk of damage to the filter medium.

The apparatus according to claim 1 of the present invention is configured such that the conveying path of the vibration feeder is made of a flat filter medium, and when the solid-liquid mixture is supplied from one end on the upstream side of the conveying path, the liquid is separated to the lower surface side of the filter medium. In the vibratory solid-liquid separation device in which the solid is vibrated and conveyed to the other end on the conveying path and discharged from a discharge port provided at the other end of the conveying path, the mixture is placed on the feeder main body frame surrounding the conveying path. The mixture supply mechanism including the supply port is fixed, and this supply mechanism is configured to vibrate together with the conveyance path, so that the fall height of the mixture supplied from the supply port to the upper surface of the conveyance path is always constant and small. Yes configured to be set, and the mixture supply mechanism, as configured in the receiving tank in which the mixture from the outside is stored once, and the supply port for guiding the conveying path and the mixture overflowing from the water tank That.

  In the apparatus according to claim 2 of the present invention, the supply port of the mixture supply mechanism is configured by a flat plate portion having substantially the same width as that of the transport path and a hanging plate portion following the leading edge of the flat plate portion. .

In the apparatus according to claim 3 of the present invention, the supply port of the mixture supply mechanism is configured by a flat plate portion having substantially the same width as that of the transport path and a hanging plate portion following the leading edge of the flat plate portion. .

  In the apparatus according to claim 4 of the present invention, the conveying path of the vibration feeder is constituted by a flat filter medium, and when the solid-liquid mixture is supplied from one end on the upstream side of the conveying path, the liquid is separated to the lower surface side of the filter medium. In the vibratory solid-liquid separation device in which the solid is vibrated and conveyed to the other end on the conveyance path and discharged from the discharge port provided at the other end of the conveyance path, the discharge port is connected to the edge of the conveyance path. It is the thing of the structure which provided the drooping board part.

  The device according to claim 5 of the present invention has guide walls on both side edges below the hanging plate portion at the discharge port, and the upper edge is wider than the width of the hanging plate portion, and the width is lowered downward. The configuration is such that a small discharge shooter is provided.

  In the apparatus according to claim 6 of the present invention, the conveying path of the vibration feeder is constituted by a flat filter medium, and when the solid-liquid mixture is supplied from one end on the upstream side of the conveying path, the liquid is separated to the lower surface side of the filter medium. In the vibratory solid-liquid separation device in which the solid is vibrated and conveyed to the other end on the conveyance path and discharged from the discharge port provided at the other end of the conveyance path, A thin drainage shooter is provided, and the drainage shooter has a lower opening edge provided with a collar for preventing drainage splashing hanging from the opening edge.

  The apparatus according to claim 7 of the present invention includes a cleaning mechanism for cleaning the upper surface of the filter medium in the transport path above the transport path, and the cleaning mechanism includes a plurality of watering nozzles that open toward the upper surface of the filter medium. It is assumed that the cleaning water from these mountain water nozzles is configured such that the ejection position of the water for cleaning from the mountain water nozzle moves from the mixture supply port side to the discharge port side in the transport path.

  In the apparatus according to claim 8 of the present invention, the cleaning mechanism includes the plurality of watering nozzles at predetermined intervals across the width of the conveyance path, and the watering nozzles are arranged from the mixture supply port side to the discharge port side of the conveyance path. It is equipped with a drive mechanism that moves approximately parallel to the transport path, and moves from the water supply nozzle to the upper surface of the transport path while moving from the end of the mixture supply port of the transport path to the same discharge port at predetermined time intervals. It is configured to perform watering.

  The apparatus according to claim 9 of the present invention is characterized in that the cleaning mechanism includes a large number of the watering nozzles at predetermined intervals in the width direction and the longitudinal direction of the conveying path, from the watering nozzle on the mixture supply port side to the watering nozzle on the discharge port side. In this configuration, the cleaning water is sequentially supplied to and the watering position is moved from the end side of the mixture supply port of the transport path to the discharge port side at predetermined time intervals.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the apparatus according to the present invention will be described below in detail based on specific examples shown in the accompanying drawings.
The feeder main body frame 3 supported on the base frame 1 via the vibration isolating members 2 and 2 is provided with an oscillating device 4 made of an eccentric motor, and the filter medium 5 made of a metal mesh is horizontally placed in the main body frame. This filter medium constitutes a transport path for the solid-liquid mixture.

  The main body frame 3 has an upper opening, and a lower thin drainage shooter 6 at the lower side. A rectangular tube-shaped collar 7 for preventing drainage scattering is provided at the lower opening edge of the shooter 6. The lower end of the opening of the collar 7 is used as the drainage port 8.

  Accordingly, a mixture supply mechanism 9 for supplying a solid-liquid mixture from the outside onto the filter medium 5 serving as a conveyance path is fixed to one end of the main body frame 3, and the mixture from the outside is temporarily stored in the supply mechanism. A water receiving tank 10 and a supply port 11 for guiding the mixture overflowing from the water receiving tank onto the filter medium. The supply port is a droop following the flat plate portion 12 having the same width as the filter medium and the leading edge of the flat plate portion. It is comprised with the board part 13. FIG.

  In addition, the pipe 14 which supplies the mixture from the outside is attached so that the lower end thereof opens into the liquid of the mixture 15 stored in the water receiving tank 10, and when the mixture is supplied to the water receiving tank. It is configured so that the mixture does not splash outside.

Further, the other end of the main body frame 3 is formed with a horizontal conveying portion 16 following the filter medium 5 and a hanging plate portion 17 hanging from the end edge of the conveying portion. A discharge shooter 18 having a guide wall 18a, 18a and an upper edge wider than the hanging plate portion and having a smaller width downward is provided. The horizontal conveying portion 16 and the hanging plate portion 17 are provided. The discharge shooter 18 forms a solid discharge port separated from the mixture.
The discharge shooter 18 is supported on the base frame 1 separately from the main body frame 3 and is not affected by vibration.

  Thus, a cleaning mechanism 20 supported by support columns 19 and 19 is provided on the base frame 1 above the main body frame 3, and the cleaning mechanism cleans solids on the conveyance path at predetermined time intervals. It can be done.

  Specifically, a carriage 22 spanning the width of the filter medium 5 is provided between two guide rails 21, 21 provided in parallel with the transport direction of the transport path, and the carriage is transported by the drive mechanism 23. It is provided so that it can be moved in parallel with the transport direction.

The drive mechanism 23 includes an endless belt 26 that is stretched between a drive roller 24 and a driven roller 25. The carriage is fixed in the middle of the endless belt, and the endless belt is fed forward and backward. Thus, the carriage 22 can be moved back and forth.
Reference numeral 27 in the drawing denotes a tension roller.

  Various known mechanisms can be used as the drive mechanism. For example, a sprocket is used instead of the rollers 24, 25, and 27 of the drive mechanism, and a chain is used instead of an endless belt. When the carriage 22 is allowed to travel along the guide rail, or when the screw rod provided in parallel to the guide rail and the nut screwed to the screw rod are provided on the carriage, the carriage is screwed, etc. There is.

  A lower portion of the carriage 22 is provided with a water supply pipe 29 including a plurality of water spray nozzles 28 and 28 that open downward at a predetermined interval across the width of the filter medium 5. The filter medium can be moved in parallel.

The water after the solid separation is supplied to the watering nozzle from the outside through the water supply pipe 29 as cleaning water, and more specifically, the solid discharged from the drainage port 8 of the apparatus of the present invention. The liquid that has passed through the water supply pipe is supplied from the watering nozzle by driving the pump (not shown) from the water tank 30 that stores the liquid after separation, and the valve (not shown) provided in the middle of the water supply pipe is opened depending on the amount of liquid delivered by the pump By adjusting the degree, the liquid ejection pressure from the watering nozzle can be adjusted.
The watering nozzle may be configured to supply water such as tap water or new cleaning water from the outside.

The above-described cleaning mechanism 20 sprays water from the water spray nozzle to the upper surface of the filter medium 5 serving as the transport path while moving from the end of the mixture supply port of the transport path toward the discharge port at predetermined time intervals set in advance. The driving interval and the liquid jet pressure from the watering nozzle are the amount of the mixture processed by the apparatus of the present invention, the amount of solids contained therein, the area of the filter medium and the eyes. It is set as appropriate depending on the fineness of the image, and cleaning is automatically performed by an appropriate control circuit.
In addition, the code | symbol 33 in a figure shows the support leg for supporting an apparatus on a water tank.

Next, the operation of the apparatus according to the present invention configured as described above will be described.
The mixture 15 supplied from the outside into the water receiving tank 10 by the mixture supply pipe 14 is agitated by the vibration of the water receiving tank together with the main body frame 3, and the solid in the mixture is prevented from being precipitated and deposited in the water receiving tank. Is done.

The water in the water receiving tank 10 overflows to the supply port 11 by the mixture sequentially supplied from the supply pipe 14, and is supplied onto the filter medium 5 through the flat plate portion 12 and the drooping plate portion 13.
At this time, since the supply port 11 is fixed to the main body frame 3, there is no relative displacement with respect to the filter medium 5, and therefore the distance between the lower edge of the hanging plate portion 12 and the upper surface of the filter medium 5, that is, the drop height of the mixture. The height can always be kept constant and the drop height can be small.

  In the apparatus of the present embodiment, a receiving plate 31 that is substantially parallel to the filter medium is further provided between the hanging plate portion 12 and the filter medium at the mixture supply port, and the mixture is dropped in two stages to thereby reduce the mixture. The filter medium can be more reliably prevented from being damaged due to the fall of the filter medium on the filter medium.

This means that the filter medium must be made finer as in the case of solid-liquid separation of a mixture containing paper strips, for example, a stainless steel thin wire having a wire diameter of about 0.06 to 0.15 mm. This is particularly effective when the filter medium is made up of a wire mesh that has been used, the load on the wire mesh is greatly reduced, and an expensive wire mesh can be used over a long period of time. It is.
A hanging plate 32 is also provided on the lower surface of the receiving plate 31, so that the mixture does not scatter to the outside along the lower surface of the receiving plate.

Further, since the drooping plate portion 12 is provided at the supply port 11, the problem that the mixture is scattered outside along the lower surface of the supply port 11 is solved, and the surroundings of the apparatus are not soiled.
The above-mentioned problem of scattering of the mixture is likely to occur when the solid contained in the mixture is sticky. For example, strips of labels from cleaning drainage from a cleaning device that peels and cleans paper labels from various containers. It is a problem that tends to occur when separating the adhesive residue for labeling, and by providing a hanging plate part, it can be suitably used for separating a mixture containing such sticky solids. The range of application of the device according to the invention can be expanded.

Thus, the liquid in the mixture supplied onto the filter medium 5 passes through the filter medium and drops downward, passes through the drainage shooter 6 and the collar 7, and is discharged downward from the drainage port 8 to the water tank 30 below the apparatus. Stored.
At this time, the drainage shooter 6 and the collar 7 vibrate together with the main body frame. However, when the collar faces the water tank 30, the liquid is prevented from splashing from the drainage port 8 to the surroundings, and the liquid is effectively used. Can be recovered and the surroundings can be kept clean.

  Then, the solid in the mixture remaining on the filter medium 5 is vibrated and conveyed to the discharge port side by the vibration of the main body frame, and dropped from the filter medium to the discharge shooter 18 through the horizontal conveyance section 16 and the hanging plate section 17. The separated solids collected in the center by the discharge shooter and discharged to the outside from the lower edge are discharged and collected appropriately by, for example, the duster box 34.

  Since the drooping plate portion 17 is also provided at the discharge port as in the case of the supply port 11 of the mixture, the problem that the solid after liquid separation is scattered outside through the lower surface of the horizontal transport portion 16 is solved. , Do not get dirty around the device.

  The scattering of solids as described above is likely to occur when the solid is sticky as well as the mixture may be scattered at the supply port. For example, from a cleaning device that peels and cleans paper labels from various containers. It is a problem that tends to occur when separating strips of labels and adhesive debris for labeling from washing waste liquid. By providing a hanging plate part, it is possible to separate a mixture containing such sticky solids. Can be suitably used, and the application range of the apparatus according to the present invention can be expanded.

  By the way, the solid separated on the filter medium 5 is oscillated and conveyed to the discharge port side as described above. In particular, the fine fiber pulp such as a solid that easily contains moisture or a paper label strip. In this case, the filter medium is likely to be clogged, and as the apparatus is used, solids may gradually adhere and accumulate. The solid adhering to the filter medium is automatically driven by the periodic drive of the cleaning mechanism 20 described above. Removed.

  Specifically, when the cleaning mechanism 20 is turned on at a time interval set in advance by timer control or the like, the carriage 23 is moved from the supply port side to the discharge port side by the drive mechanism 23 and is provided on the carriage. The liquid from the water tank 30 is supplied from the plurality of sprinkling nozzles 28, 28 and is ejected at a predetermined pressure toward the upper surface of the filter medium. Is sent to the discharge port side and removed from the upper surface of the filter medium.

Next, another example of the above-described cleaning mechanism 20 will be described with reference to FIG.
In the cleaning mechanism described above, the watering position is moved by moving the watering nozzles disposed across the width of the conveying path by the drive mechanism. The cleaning water is disposed at predetermined intervals in the longitudinal direction, and the cleaning water is sequentially supplied from the row of watering nozzles on the mixture supply port side to the row of watering nozzles on the discharge port side, and the conveying path is set at predetermined time intervals. In some cases, the sprinkling position is moved from the end side of the mixture supply port to the discharge port side.

  Specifically, a plurality of water supply pipes 36 and 36 are spanned across the width of the conveyance path on the filter medium 5 serving as a conveyance path, a plurality of water spray nozzles are provided on the lower surface side of each water supply pipe, and a base of each water supply pipe is provided. Is provided with an open / close valve 37 and the open / close control of the open / close valve is controlled by a control circuit 38.

Specifically, when all the on-off valves 37 are normally closed and the cleaning mechanism is turned on at a preset time interval by a timer or the like, the control circuit 38 is positioned closest to the mixture supply port. Open / close valve of water supply pipe for a predetermined time.
The open / close valve of the water supply pipe on the discharge port side is opened sequentially, and the open / close valve after a predetermined time is sequentially closed, so that the water supply pipe on which the open / close valve is opened moves from the mixture supply port side to the discharge port side. The spray position of the cleaning water moves from the end side of the mixture supply port of the transport path to the discharge port side at predetermined time intervals.

  The cleaning mechanism of the present embodiment cannot move the sprinkling position as smoothly as the above-described driving mechanism, but the driving mechanism for moving the sprinkling nozzle is unnecessary, so the structure should be simplified. In addition, at least the space between the cleaning device and the conveyance path can be covered with a shield such as a casing or a vinyl sheet, and there is an advantage that splashing of cleaning water can be reliably prevented when the cleaning mechanism is driven.

  In each of the above-described embodiments, the filter medium 5 is formed of a wire mesh. However, other than the wire mesh, for example, a punching metal, a fiber mesh material, or a cloth material depending on the type, property, or size of the solid contained in the mixture. May be used.

  Further, the mixture supply mechanism 9 may be constituted by a nozzle type in which the supply port 11 is provided with a flat plate portion 12 and a drooping plate portion 13 following the leading edge of the flat plate portion, and the water receiving tank 10 may not be provided. .

  Furthermore, the cleaning mechanism 20 may not be provided when the solid in the mixture is of a property that is difficult to adhere to the filter medium 5.

  In addition, the apparatus of the above-described embodiment is configured to be installed on the existing water tank 30 by the support legs 33, 33, but a wall is provided between the support legs with a plate material such as an iron plate and the lower part is closed with a bottom plate. In this case, a new water tank can be constructed.

  According to the apparatus of the present invention, since the supply port of the solid-liquid mixture to the conveyance path made of the filter medium is fixed to the feeder main body frame, the mixture is always supplied to the filter medium from a certain height. The drop height of the mixture with respect to the filter medium can be reduced, so that the load caused by the impact of the drop of the mixture on the filter medium can be extremely reduced, and a large amount of the mixture is separated. The filter medium can be used for a long period of time.

  In addition, since the drooping plate portion is provided at each of the mixture supply port and the separated solid discharge port, the solids in the mixture can be obtained like a mixture containing strips of paper labels and adhesive residue as solids. Even if it has moisture and has adhesive properties, it can be prevented that this solid scatters to the outside through the lower surface of the supply port and the discharge port, and the surroundings can be kept clean. .

  That is, according to the apparatus of the present invention, the solid in the mixture can be reliably separated from the liquid, the processing amount can be increased, and the separated solid can be reliably dispersed without scattering around the apparatus. In addition, the filter medium can be recovered for a long period of time and the running cost can be reduced.

  In addition, with a cleaning mechanism, the solid adhering to the upper surface of the filter medium is periodically removed and refreshed, so that solid-liquid separation can be performed reliably, and the state of solid adhesion to the filter medium can be monitored and the filter medium can be monitored. Therefore, it is possible to provide a separation device with good maintainability.

The front view which shows the Example of the apparatus which concerns on this invention. The longitudinal section showing the example of the device concerning the present invention. The side view which shows the Example of the apparatus which concerns on this invention from the discharge port side. The bottom view of the same mechanism which shows other examples of a cleaning mechanism. The figure which shows an example of the conventional solid-liquid separation means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base frame 2 Anti-vibration member 3 Feeder main body frame 4 Oscillator 5 Filter medium 6 Drainage shooter 7 Collar 8 Drainage port 9 Mixture supply mechanism 10 Receiving tank 11 Supply port 12 Flat plate part 13 Drooping plate part 14 Mixture supply pipe 15 Mixture 16 Horizontal transport unit 17 Drooping plate unit 18 Discharge shooter 19 Post 20 Cleaning mechanism 21 Guide rail 22 Carriage 23 Drive mechanism 24 Drive roller 25 Driven roller 26 Endless belt 27 Tension roller 28 Sprinkling nozzle 29 Water supply pipe 30 Water tank 31 Receiving plate 32 Drooping plate 33 Support leg 34 Duster box 35 Watering nozzle 36 Water supply pipe 37 On-off valve 38 Control circuit

Claims (9)

The conveying path of the vibration feeder is composed of a flat filter medium. When a solid-liquid mixture is supplied from one end on the upstream side of the conveying path, the liquid is separated on the lower surface side of the filter medium, and the solid vibrates to the other end on the conveying path. In the vibratory solid-liquid separation device that is transported and discharged from a discharge port provided at the other end of the transport path, a mixture supply mechanism including a supply port for the mixture is fixed to a feeder body frame that surrounds the transport path. The supply mechanism is also configured to vibrate together with the conveyance path, and is configured so that the fall height of the mixture supplied from the supply port to the upper surface of the conveyance path can always be set to a constant small value , and A vibratory solid-liquid separation device, wherein the mixture supply mechanism includes a water receiving tank in which an external mixture is temporarily stored, and a supply port that guides the mixture overflowing from the water receiving tank to a conveyance path .   The vibratory solid-liquid separation device according to claim 1, wherein the supply port of the mixture supply mechanism is constituted by a flat plate portion having substantially the same width as the conveyance path and a hanging plate portion continuing from a leading edge of the flat plate portion. .   The vibratory solid-liquid separation device according to claim 1, wherein the supply port of the mixture supply mechanism is constituted by a flat plate portion having substantially the same width as the conveyance path and a hanging plate portion continuing from a leading edge of the flat plate portion. . The vibratory solid-liquid separation device according to claim 1, wherein a drooping plate portion following the edge of the conveyance path is provided at the discharge port.   A discharge shooter having guide walls on both side edges below the drooping plate portion at the discharge port, an upper edge wider than the width of the drooping plate portion, and a width decreasing downward is provided. 5. The vibration type solid-liquid separation device according to 4. Provided drainage chute for narrowing down at the bottom of the feeder body frame surrounding the transport path, according to claim 1, the lower opening edge of the drainage chute, made by providing a color for drainage shatterproof depending from said open edge The vibration type solid-liquid separator described in 1 .   A cleaning mechanism for cleaning the upper surface of the filter medium of the transfer path is provided above the transfer path, and this cleaning mechanism includes a plurality of water spray nozzles that open toward the upper surface of the filter medium, and the cleaning water from these mountain water nozzles, The vibratory solid-liquid separation device according to claim 1, 4, or 6, wherein the ejection position moves from the mixture supply port side to the discharge port side in the conveyance path.   The cleaning mechanism includes a drive mechanism that includes the plurality of water spray nozzles at predetermined intervals across the width of the transport path, and that moves the water spray nozzles from the mixture supply port side to the discharge port side of the transport path substantially parallel to the transport path. And water spraying from the water spray nozzle to the upper surface of the transport path while moving from the end side of the mixture supply port of the transport path to the discharge port side at predetermined time intervals set in advance. 8. The vibration type solid-liquid separation device according to 7.   The cleaning mechanism includes a large number of the watering nozzles at predetermined intervals in the width direction and the longitudinal direction of the conveyance path, and sequentially supplies cleaning water from the watering nozzle on the mixture supply port side to the watering nozzle on the discharge port side. The vibratory solid-liquid separator according to claim 7, wherein the sprinkling position is moved from the end side of the mixture supply port of the conveyance path to the discharge port side at a predetermined time interval.

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