JP2003117317A - Water treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water treatment apparatus which is constituted compactly at a low cost and reliably removes sludge contained in raw water. SOLUTION: This water treatment apparatus M is constituted so as to have a stirring part 10 which is arranged on the upper part of a frame 1, a solid- liquid separating part 20 which is arranged on the lower side of the stirring part 10 and a filtration vessel 30 which is arranged on the lower side of the solid-liquid separating part 20 and is surrounded by a side wall part 5 of the frame 1. The stirring part 10 has a blade body 18 stirred by water which is supplied by a water supply port 11 and the solid-liquid separating part 20 is constituted so as to have a roll filter 22 which can be moved in left and right directions by being wound and a cylindrical body 23 which ejects the sludge on the roll filter 22 by means of air. In addition, the filtration vessel 30 comprises five steps of layers and has sliders 34 slidable in back and forth directions and buckets 33 which are placed on the sliders 34 on the respective layers. As the buckets 33, charcoal and natural mineral are used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to water, such as dam lakes, swamps, rivers, ponds, aquaculture ponds of saltwater fish or freshwater fish, or drainage water discharged from a castle digging or construction site, to obtain suspended matter / foreign matter. The present invention relates to a water treatment device capable of separating and removing sludge such as water and sludge.

[0002]

2. Description of the Related Art Generally, water stored in dam lakes, swamps, rivers, ponds, aquaculture ponds of saltwater fish and freshwater fish, or digging is mixed with suspended solids, foreign substances, and sludge such as sludge. Since various chemical substances and sludge such as sludge or waste materials are mixed in the wastewater discharged from factories and construction sites, the water from which the sludge is removed by washing the raw water with the water treatment equipment is treated as treated water. I was supposed to eject it.

Conventional water treatment apparatuses are often constructed by using a filter membrane such as a filter to allow the raw water to permeate therethrough and to supplement the sludge contained in the raw water to separate it from the treated water. ing. In these water treatment devices, when raw water permeates the filtration membrane, foreign matter or fine particulate suspension trapped in the filtration membrane rapidly causes clogging of the filtration membrane and frequently causes the filtration membrane to pass through. It had to be washed. To wash the filtration membrane, in the filtration process with the filtration device, the washing water is passed along the flow opposite to the flow of water, that is, from the outflow side to the inflow side of the filtration membrane with a washing pump to wash To do. In this way, the sludge adhered to the filtration membrane was peeled off from the filtration membrane. Then, the separated sludge was discharged to the outside as cleaning drainage together with the raw water or the cleaning water.

[0004]

However, these conventional water treatment apparatuses require a large facility and a large site for solid-liquid separation for the post-treatment of washing waste water, and therefore the apparatus is large-scaled. Being constructed, it was extremely costly and uneconomical. Therefore, a water treatment device improved so as to efficiently concentrate the cleaning waste water has also been proposed (see Japanese Patent Laid-Open No. 10-286565). However, even in this apparatus, the sludge attached to the filtration membrane is stripped with the washing water, and the post-treatment of the washing wastewater containing the sludge is performed, so that the cost is still high.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide a water treatment device which reliably separates sludge contained in raw water and can be manufactured at a low cost with an extremely easy structure.

[0006]

In the water treatment apparatus according to the present invention, in order to solve the above-mentioned problems, sludge can be separated without using washing water, and is constituted as follows. Is. That is, it comprises a stirring means for stirring the water supplied from the water supply port, a solid-liquid separation means for separating sludge contained in the stirred water, and a multi-stage layer for filtering the water from which the sludge has been removed. And a drainage port for discharging filtered water, wherein the stirring means is configured to have a feather body rotatable with respect to a machine frame, The liquid separating means is configured to include a roll filter having both ends wound around a core material and movable in a horizontal direction, and a removing means for separating sludge attached to the roll filter from the roll filter. It is characterized by that.

Further preferably, the removing means may be provided with a cylindrical body having a large number of jet outlets arranged so as to blow air toward the sludge on the roll filter.

[0008] Further, it is more preferable that the filtration tank is configured such that buckets filled with a filter material are slidably arranged in each stage and an air layer is formed between the buckets.

Further, the filter medium contains charcoal or natural ore, and at least one of the buckets may be filled with natural ore having a high far-infrared radiation characteristic as a filter medium.

Further, the drainage port and the water supply port may be connected by a pipe member so that filtered water can be circulated to be re-filtered.

[0011]

EFFECTS OF THE INVENTION Since the water treatment device of the present invention is constructed as described above, the water sucked from the water supply port is solid-liquid separated by being agitated by the feathers constituting the agitation means. It is supplied in a wide range on the roll filter of the means.
Since the roll filter is wound around the winding core and arranged so as to be movable left and right, by moving the roll filter to which the sludge is attached to either one, the removal means arranged on the moved side can be used. Sludge can be separated and removed. The sludge can be discharged to the outside, for example, by providing a sludge drain port, and the water from which the sludge has been removed is further purified by passing through a multi-stage filter tank, and the drain port Emitted from. Therefore, by integrally arranging the water inlet, the stirring means, the roll filter, and the filtration tank in the machine frame, it is possible to manufacture as an extremely compact device, and moreover, the sludge can be separated without using washing water. In addition, since water can be purified, it is possible to provide a water treatment device as an inexpensive device.

Further, since the sludge on the roll filter is removed by ejecting air from a large number of jets formed in the cylindrical body, the sludge can be reliably separated from the roll filter, If the surface of the roll filter on which the sludge is not attached is moved below the wing, the roll filter can be semi-permanently used without clogging.

Further, the water passing through the filtration tank composed of a plurality of layers can come into contact with air by passing between the buckets to absorb oxygen and activate the filtered water. Moreover, since the buckets are slidably arranged, it is possible to take out and replace only the buckets that are filled with the dirty filter material among the buckets that are arranged in multiple stages, so that the filter material can be economically replaced. It can be performed.

Further, the water from which sludge has been removed passes through a filter medium containing charcoal and natural ore having high far-infrared radiation characteristics, so that dioxins and the like can be removed and safe water can be supplied. You can

Furthermore, if the drainage groove is connected to the suction port by a pipe, the water once filtered can be refiltered, and safer water can be supplied.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. The water treatment apparatus of the present invention supplies untreated water (raw water) in one machine frame, separates the solid and the liquid, and filters the liquid from which the solid is removed to purify the purified water. It is configured so that it is discharged as treated water and solids are discharged to the outside.

As shown in FIG. 1, the water treatment apparatus M of the embodiment is provided with a machine frame 1, a stirring section 10 provided on the upper side of the machine frame 1 with a water supply port 11, and stirred by the stirring section 10. Solid-liquid separation section 20 for separating the separated water into solid and liquid, and solid-liquid separation section 20
Filter tank 30 for filtering the water from which solids have been removed with
And a drain port 37 for draining the treated water.

The machine frame 1 has a support part 2 for supporting the stirring part 20 at the upper part, a projection part 3 for arranging the solid-liquid separation part 20, and a filtration tank 30 at the bottom part. The side wall portion 5 is formed. Sludge recovery ports 4.4 for recovering solids as sludge are provided below the protrusions 3.3. The sludge collection port 4, 4 may be provided at the lower end portion formed in a hopper shape in which the outer end portion of the protruding portion 3, 3 is tapered downward.

As shown in FIGS. 1 and 2, the stirring section 10 is disposed above the supporting section 2, has a water supply port 11 on the upper surface thereof, and has a center pin 13 at the center thereof.
2. A fixing portion 1 which is connected to the bottom portion 12 on the outer peripheral portion and has a side wall 14 tapering downward.
5 and a rotary plate 17 arranged with a plurality of wings 18 formed in a curved or plate shape around the center pin 13.
And is configured.

Below the bottom portion 12, a foot portion 16 for dropping the agitated water downward in a wide range is supported by the support portion 2 of the machine frame 1 and protrudes in three directions with respect to the fixed portion 15. Is formed in. The foot portion 16 is formed in a box shape having an upper opening, and one hole 161 is formed near the outer end portion. In addition, the foot portion 1 protruding in three directions
It is desirable that 6 is connected to the central portion so that water stirred by the rotary plate 17 can be stored, but the number is not particularly limited. Further, the foot portions 16 may be arranged in four or more directions instead of being arranged in three directions.

Since the rotary plate 17 is rotatably arranged by the water pressure of the water flowing in from the water supply port 11, it is desirable to connect the rotary plate 17 to the center pin 13 by a water resistant bearing. Further, the rotary plate 18 is formed with a plurality of water drop holes 19 for dropping the agitated water downward.

As shown in FIG. 1 and FIG. 3, the solid-liquid separating section 20 has both sides protruding portions 3 and 3 of the machine casing 1 with a filter tank 30 in between.
A roll filter 22 having both ends wound around shafts 21 that are rotatably supported by, and a removing unit that is disposed above both sides of the roll filter 22 and is integrally formed on the bottom 12 of the stirring unit 11. And a tubular body 23 of. The roll filter 22 is wound around one of the shafts 21 to allow the water dropped from the stirring unit 10 to pass therethrough, and also to place the solid separated from the liquid in a horizontal portion of the roll filter 22. Is movably operated in either the left or right direction.

As shown in FIG. 4, each shaft 21 is connected to a motor 24 supported by the machine frame 1 via a chain 25 and sprockets 26 and 27.
The shaft 21 is rotated by driving the roll filter 2
2 will be wound up.

The pair of cylindrical members 23, 23 arranged above the roll filter 22 are arranged inside the winding core portions (shafts 21) on both sides of the roll filter 22 and also in the width direction (movement of the roll filter 22). A large number of air ejection ports 231 are formed along the direction (perpendicular to the direction). Each air jet port 231 is a roll filter 2
2 is formed in the tubular body 23 at a position where air can be ejected from the winding core of the roll filter 22 to the outside, and air is introduced into the tubular body 23 at one end of the tubular body 23. An unillustrated air hose for supply is connected.

The means for removing solids on the roll filter 22 is not limited to the above-mentioned air means. For example, a brush roller or a bladed roller may be attached in place of the cylindrical body so that it is above the roll filter 22. The solid (sludge) may be swept out by rotating a brush or a blade from the above.

In the present embodiment, the multi-stage filtration tank 30 will be described as having five layers.
The number of stages is not limited to five, and it is desirable that there are at least two stages.

In the case of the embodiment, the filter tank 30 is formed so as to be surrounded by the side wall portion 5 of the machine frame 1 and divided into layers by the sliding guide portion 6 formed inside. Lattice-shaped nets 31, 31 are arranged above and below the roll filter 22, and buckets 33 filled with a filter medium 32 are provided in respective layers arranged below the nets 31, and a slider 34 for moving the buckets 33 into and out of the layer 30. And a gap 35 is formed below each slider 34 so that water passing between the layers can be activated by contacting oxygen.

In the bucket 33, side walls 331 that are wide or vertical are arranged in four directions or in a circle to guide water downward, and a net-shaped bottom portion 332 is formed on the lower surface, and each slider 34 slides in the front-back direction. Both ends to move
It is supported by a sliding guide portion 6 formed on the machine frame 1.
Further, the slider 34 is formed with a through hole 341 for dropping water downward.

Filter medium 32 filled in bucket 33
Is made of charcoal and natural ore, and is used in the upper layer bucket 33.
A coarse filter medium 32 is used as the filter medium 32, and fine filter medium 32 is used in order toward the lower layer. Furthermore, in at least one bucket 33 of the five stages, a natural ore having a high far-infrared radiation characteristic, for example, one formed of porous stone such as silica is used. As a result, the water from which solids have been removed can be sequentially purified, and dioxin and the like can be removed by the effect of negative ions and far infrared rays.

A drain port 37 for discharging purified water is disposed below the filtration tank 30.

A pair of open / close doors 7, one end of which is attached to the machine frame 1, are arranged at the front portion of the filtration tank 30 so as to be openable / closable, and the open / close door 7 is provided when the bucket 33 is not in and out.
・ 7 is closed.

Next, the function of purifying the water in the dam lake by installing the water treatment device M having the above-mentioned structure in, for example, the dam lake will be described.

Water from the dam lake is supplied by a water supply pump (not shown), and water (raw water) is supplied from the water supply port 11. The water sucked by the pump is supplied into the stirring unit 10 and is sprayed to the curved or plate-shaped feather body 18 by water pressure, so that the feather body 18 is rotated around the center pin 13 together with the rotary plate 17. Let Most of the water stirred in the stirring unit 10 is
It flows into the foot portion 16 from the water drop hole 19 of the rotary plate 17, and is dropped onto the roll filter 22 in a wide range in a state in which sludge is mixed from the holes 161 of the foot portion 16 arranged in three directions.

Of the raw water supplied into the stirring section 10, the water that does not drop from the water drop hole 19 is dropped directly onto the roll filter 22 from between the rotary plate 17 and the bottom 12 of the fixed section 15.

On the other hand, in the solid-liquid separation section 20, the shaft 21 around which the roll filter 22 is wound by the drive of the motor 24 through the chain 25, the sprockets 26 and 27.
5, the air is supplied into the tubular body 23 so that the tubular body 2
Air is ejected from a large number of three air ejection ports 231.
At this time, if the respective motors 24, 24 operate so that the pair of shafts 21, 21 around which both ends of the roll filter 22 are wound rotate in the same direction, the roll filter 22 can be extremely easily moved in one direction. However, only the motor 24 arranged in the moving direction may be operated to rotate the one shaft 21 and cause the other shaft to follow the movement of the roll filter 22.

In any case, as for the water that has dropped onto the roll filter 22, solids such as sludge are placed on the roll filter 22 and the liquid is transmitted to the roll filter 22.
Then, the solid placed on the roll filter 22 moves in one direction of the roll filter 22, passes under the tubular body 23 on the moved side, and then the air ejection port 23 of the tubular body 23.
It is blown away by the air blown from 1, and the machine frame 1
It is discharged to the outside from the sludge collecting port 4 arranged below the projecting portion 3. Note that the roll filter 22 moves in one direction to remove sludge (solids), and then is wound in the same direction to use a new surface. When the winding in one direction is completed, the roll filter 22 automatically Wrap in the opposite direction. As a result, the roll filter 22 can be reused without causing clogging.

The sludge is removed to remove the roll filter 2
The liquid (water) that has passed through 2 penetrates into the filtration tank 30 and passes through the net 31 arranged in the upper stage, and then passes through each of the five layers. The upper net 31 removes large suspended matters and dust, and the lower net 31 removes the roll filter 22.
It will play the role of supporting the slack when the weight sags.

The water passing through the filtration tank 30 having layers of five layers passes through a large lump of the filter medium 32 accommodated in the bucket 33 of the upper stage and comes into contact with air between layers to absorb oxygen. After being activated by the
Through 5 layers. During this time, since at least one bucket contains the filtering material 32 having a high far-infrared radiation characteristic, water removes dioxin and the like by passing through charcoal and the filtering material 32 having a high far-infrared radiation characteristic. Become. The water that has passed through the five layers and is purified is discharged into the dam lake through the drainage port 37.

As described above, the water treatment device M of the embodiment
The water sucked from the water supply port 11 is agitated by rotating the wing 18 with the rotating plate 17 by water pressure,
Since it falls on a wide range on the roll filter 22,
The sludge can be scattered and the air ejected from the cylindrical body 23 can immediately separate and remove the sludge. Moreover, since the roll filter 22 can move in either the left or right direction, the roll filter 2
2 can be reused. The sludge can be discharged to the outside from the sludge recovery port 4, and the roll filter 2
The liquid from which solids have been removed by passing through 2 is purified and discharged by passing through the filtration layer 30 composed of 5 layers, so that the water supply port 11, the stirring unit 10, By integrally arranging the roll filter 22 and the filtration tank 30 in the machine frame 1, it is possible to manufacture as an extremely compact device, and further, the sludge is separated and the water is purified without using washing water. Therefore, it is possible to provide a water treatment device as an inexpensive device.

Further, the water passing through the filtration tank 30 having a multi-layer structure can pass through the buckets 33 to come into contact with the air to absorb oxygen and activate the filtered water. Moreover, since the buckets 33 are slidably arranged, it is possible to take out and replace only the buckets 33 filled with the highly dirty filter medium 32 out of the buckets 33 arranged in multiple stages, which is economical. Filter material 32
Can be exchanged.

Further, the water from which sludge has been removed passes through the filter medium 32 made of charcoal or natural ore having a high far-infrared radiation characteristic, so that dioxin etc. can be removed and safe water is supplied. be able to.

The water treatment device of the present invention is not limited to the above-mentioned form. For example, in the stirring unit 10,
What rotates the rotary plate 18 may be configured to be driven by a motor instead of hydraulic pressure.

Further, in the solid-liquid separating section 20, one of the roll filters 22 shown in FIG. 1 may be folded back so as to be wound around a roller, and may be arranged further downward so as to be horizontally movable in plural stages. Further, the roll filter 22 may be separately arranged, for example, between any stages of the filtration tank 30, and as shown in FIG. 6, the roll filter 22 may be arranged as shown in FIG. Even if the shafts 21A and 21A are arranged near the uppermost layer and the lowermost layer, and another roll filter 22A having both ends wound around the shafts 21A and 21A is arranged so as to pass between the respective layers. Good. Then, the cylindrical body 23A may be provided for each layer to eject the sludge with air. Of course, the tubular body 23A may be provided only in the necessary layers.
As a result, the solid (sludge) that has fallen into the filtration tank 30.
Can be removed. In this case, if sludge recovery ports 4A and 4A are provided below the filtration tank 30, the sludge can be discharged to the outside.

Still another form is as shown in FIG.
It is also possible to connect the separately provided drainage port 37A and water supply port 11A with the piping member 38 via the valve 39, and recirculate the water once purified and drained to the drainage port 37A to purify the water again. Is. In this case, the first drainage port 37 is provided with a valve 40 and closed, and a valve 39 is provided if necessary.
・ Open and close 40. As a result, the water can be purified more accurately.

Further, in the filtration tank 30, the water treatment apparatus M may be constructed so that the bucket 33 is taken out in order not from the front-rear direction but from the upper side so as not to expose the filtration material 32. In this case, a fixed side wall is used instead of the opening / closing doors 7 and 7.

[Brief description of drawings]

FIG. 1 is a front sectional view showing a water treatment device according to one embodiment of the present invention.

FIG. 2 is a II-II sectional view showing a stirring section in FIG.

FIG. 3 is a sectional view taken along line III-III showing the solid-liquid separation section in FIG.

FIG. 4 is a partial plan view showing a drive unit of the shaft in FIG.

FIG. 5 is a perspective view showing a state in which sludge is separated by jetting air.

FIG. 6 is a front sectional view showing another mode in which a roll filter is arranged.

FIG. 7 is a front cross-sectional view of a water treatment device showing a form in which water can be recirculated.

[Explanation of symbols]

M ... Water treatment device 1 ... Machine frame 3 ... Projection 4 ... Sludge collection port 6 ... Sliding guide 10 ... Stirrer 11 ... Water supply port 15 ... Fixed part 16 ... foot 17 ... Rotating plate 18 ... Feather 20 ... Solid-liquid separation section 21 ... Shaft (core material) 22 ... Roll filter 23 ... Cylindrical body (removal means) 231 ... Air outlet 30 ... Filtration tank 32 ... Filter material 33 ... bucket 34 ... Slider 35 ... Gap 37 ... Drainage port

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B01D 35/20 C02F 1/68 510A 39/06 520B B01F 7/18 520S C02F 1/68 510 530A 520 540B 540Z 530 B01D 33/36 540 F term (reference) 4D019 AA03 BA03 BA07 BB12 BB14 BC20 BD06 4D026 BA01 BB01 BC12 BF10 BF25 4D064 AA19 DA01 4D066 AA06 AA07 BB24 FA01 FA05 4G078 AB20 BA05 DA01

Claims (5)

[Claims] 1. A stirring means for stirring water supplied from a water supply port, a solid-liquid separation means for separating sludge contained in the stirred water, and a multistage for filtering the water from which sludge has been removed. A water treatment device comprising a layered filtration tank and a drainage port for discharging filtered water, wherein the stirring means is configured to have a feather body rotatable with respect to a machine frame. The solid-liquid separation means has a roll filter whose both ends are wound around a core material and is movable in the horizontal direction, and a removal means for separating sludge attached to the roll filter from the roll filter. A water treatment device characterized by being configured as follows. 2. The removing means is provided with a cylindrical body having a large number of ejection ports arranged therein, and is configured to eject air toward sludge on the roll filter. Water treatment equipment. 3. The filtration tank is configured such that buckets filled with a filter medium are slidably arranged in each stage and an air layer is formed between the buckets. Or the water treatment device according to 2. 4. The filter medium includes charcoal or natural ore,
At least one bucket in the bucket includes:
The water treatment device according to claim 3, wherein natural ore having a high far-infrared radiation characteristic is filled as a filter material. 5. The water treatment apparatus according to claim 1, wherein the drainage port and the water supply port are connected by a piping member so that filtered water can be circulated to be re-filtered.