JP4009668B2 - Multi-tank continuous water purification system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a multi-tank continuous muddy water purification device, and in particular, injects a flocculent separation agent into muddy water such as red soil and sludge and large-capacity livestock sewage such as cattle and pigs to continuously purify water in a short time. Is.
[0002]
[Prior art]
Conventionally, a coagulation / sedimentation apparatus using a coagulation / separation agent has a central agitation blade in an agglomeration reaction tank and an outer periphery agitation blade rotating along the inner wall, so that even when the diameter of the agglomeration reaction tank is increased. Although the throughput is improved by increasing the collision probability between the seed particles and the fine flocs, in this apparatus, there are many stirring blades provided in one tank, and the control of the rotational speed may be complicated. (For example, refer to Patent Document 1.)
[0003]
[Patent Document 1]
Japanese Patent Publication No. 10-337407 [0004]
[Problems to be solved by the invention]
Therefore, the present invention provides a multi-tank type continuous polluted water purification device that efficiently flocculates and separates large volumes of sewage and turbid water in a short period of time by causing effective turbulence with a small number of stirring blades. It is to develop and provide.
[0005]
[Means for Solving the Problems]
As a means for solving this problem, the present invention includes a plurality of tanks for purifying polluted water continuously arranged, and the rotation of turbulent flow generating propeller blades attached to the propeller shaft and driving means provided on the upper portion of the tank. In order to efficiently generate turbulent flow, the installation position of the water channel pipes provided between the tanks is alternately shifted left and right, and the center of each stirring reaction tank is approximately halfway in the vertical direction. A square tube having a dimension slightly larger than the outer diameter of the propeller blade is provided, and a water resistance plate is welded in the middle of the center of the inner peripheral four side surfaces of each tank. At the bottom four corners, equilateral triangular turbulent flow generating members are welded at a predetermined angle, and the U-shaped or Mt. Welded partition plate with a predetermined length dimension It is those provided Te.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Therefore, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3. The stirring reaction tanks (1) having a square or rectangular plan view and having a box shape are arranged in a multi-tank, and In addition, a driving means (M) such as a motor with an inverter speed reducer is provided at the upper center of each tank (T1), (T2), and (T3) of each stirring reaction tank, and the propeller shaft portion of each driving means is A bearing member (5) having a turbulent flow generating propeller blade (2) that can be arbitrarily adjusted attached to the shaft and fixed to the tip of the propeller shaft by a tightening adjustment member (6) such as a turnbuckle. A multi-tank continuous polluted water purification apparatus characterized in that it is provided with a sedimentation sludge discharge port (7) in each tank bottom plate, and enables stable rotation and variable adjustment of the rotation speed for each tank. Consists of
[0007]
Further, the stirring reaction tanks (1) having a square or rectangular shape in plan view and having a box shape are arranged in a multi-tank tank, and the water pipes (1a) (1b) ( 1c) The mounting positions in the left-right direction of (1d) are alternately shifted left and right with respect to the tank center line part (CL), and the mounting positions in the vertical direction are stepwise and have predetermined dimensions (h1) (h2) ( h3) is gradually shifted downward, and the inner dimension is approximately the middle in the vertical direction of the center of each stirring reaction tank (T1), (T2), and (T3) from the outer diameter dimension of the turbulent propeller blades. A square tube (1f) that is slightly larger than the other is provided, and two vertically long, parallel to the left and right in the middle of the center of the four inner sides of each stirring reaction tank (T1), (T2), and (T3). A water flow resistance plate (1e) having a rectangular cutout hole (1e ') is welded, and each stirring reaction is performed. An equilateral triangular turbulent flow generating member (1g) is inclined at a predetermined inclination angle (α) at the four corners of the bottom of the tanks (T1), (T2), and (T3), and the water channel is provided between the tanks. A partition plate (1h) (1h ') having a predetermined length dimension (l1) (l2) bent in a U-shape or Mt. Fuji shape at the upper and lower central portions of the outlet side portion of the pipe (1b) (1c). 2. A welded and provided continuous turbulent flow is generated for each tank, and a large volume of sewage or turbid water is brought into contact with a flocculating / separating agent in a short time to flocculate and separate. It is composed of the described multi-tank continuous polluted water purification device.
[0008]
First, the concept of the water treatment process using a flocculating / separating agent and the position of the present invention will be explained. The treatment of sewage or turbid water is mainly composed of a stirring reaction tank and a flocculation / precipitation tank, and the present invention shows the former side. Add a flocculent separation agent to sewage or turbid water and cause turbulent stirring to flocculate suspended matter in water contained in sewage or turbid water, and then sink the floc in water to discharge the supernatant water. It is made up.
[0009]
Next, the flow path from the feed water to the drainage until the polluted water (PW) becomes purified water (CW) will be described. The sewage or muddy water is fed from the water pipe (1 g), and the first stirred reaction tank ( In T1), the mixture is stirred simultaneously with the addition of the flocculant separation agent, passed through the water pipe (1b), transferred to the partition plate (1h) of the second stirred reaction tank (T2), and further stirred to pass the water pipe (1c). It is transferred to the partition plate part (1h ′) of the third stirring reaction tank (T3), further stirred and separated, and drained through the water pipe (1d).
[0010]
Next, the outline of the component configuration / internal structure and adjusting method of the present invention will be described. First, the component configuration is roughly divided into a stirring reaction tank (1) and a propeller shaft (3) arranged in a multi-tank tank. The motor with an inverter reduction gear (M) that rotates at a speed of 5 mm, a propeller shaft (3), and a turbulent flow generation propeller blade (2) that can be arbitrarily adjusted up and down. The structure of the motor and the propeller shaft is coaxially connected by the coupling (4), and the tip of the propeller shaft (3) is a bearing member in which hooks are welded at four locations on the outer periphery to prevent shaft blurring. (5) is provided, and a hook is attached to a square at the bottom of the tank, and is fixed by pulling in four directions with a turnbuckle (6). At this time, if there is uneven rotation of the propeller shaft (3), loosen the nuts of the four turnbuckles (6) once, align the center while adjusting the turnbuckle adjustment screws again, and fix them with the nuts. . Finally, a sedimentation sludge discharge port (7) is provided in each tank bottom plate of the multi-tank tank, and the sedimentation sludge accumulated in the tank is removed at the end of the operation.
[0011]
Next, the reason why the vertical mounting dimensions of the water pipes (1a), (1b), (1c), and (1d) of the stirring reaction tank (1) are provided will be described. As shown in FIG. From the 1st tank to the 2nd tank, and further from the 2nd tank to the 3rd tank, the position is gradually shifted by a predetermined dimension (h1) (h2) (h3) from the water supply to the drainage. This ensures that the water flows in a certain direction without backflow.
[0012]
In addition, the reason why the horizontal mounting dimensions of the water pipes (1a), (1b), (1c) and (1d) are alternately shifted left and right with the tank center line part (CL) as a boundary is that resistance to the flow of water In addition, the turbulent flow is caused to facilitate aggregation and separation.
[0013]
Further, in order to agglomerate and separate a larger volume of polluted water in a short time, the outer diameter of the turbulent flow generating propeller blade (2) attached to the propeller shaft (3) of the first tank section (T1) is smaller. A large square cylinder (1f) is provided around it to make it easier to cause turbulence, and right and left in the middle of the center of the four inner sides of each tank (T1, T2, T3). A water flow resistance plate (1e) having two rectangular cutout holes (1e ′) in parallel is welded.
[0014]
The reason for using two turbulent propeller blades in the first tank (T1) is to add a flocculant separation agent in order to cause agglomeration in a large volume of polluted water (PW) in a short time. Because it is necessary to generate an effective turbulent flow, the flocs generated by the coagulation reaction of the second tank part (T2), the third tank part (T3), and the first tank (T1) are further grown and settled. We use one piece at a time to make it easy.
[0015]
In order to efficiently perform a series of agglomeration reactions, the number of rotations of the driving motor (M) for rotating the propeller shaft (3) is 350 rpm for the first tank (T1) and 300 rpm for the second tank (T2). For the third tank (T3), the rotational speed is gradually reduced to 280 rpm and stirring is performed.
[0016]
Further, as shown in FIG. 2 (A), a partition plate (1h) folded in a U-shape at the outlet of the water pipe (1b) (1c) of the second tank (T2) and the third tank (T3). (1h ′) is provided for efficient turbulent stirring.
[0017]
【The invention's effect】
The stirring reaction tank (1) is made up of three continuous tanks, and the driving motor for stirring (M) and the propeller shaft (3) are connected to each tank (tank), and the rotational speed of each motor is set to be efficient. By adjusting the rotation speed to a good and optimal speed, the polluted water (PW) is forced to react and separate into the coagulated sludge and purified water (CW), ensuring large volumes of water (30 t / h to 300 t / h) in a short time. This makes it possible to achieve a very beneficial effect, such as enabling processing.
[Brief description of the drawings]
1A and 1B show an embodiment of the present invention, in which FIG. 1A is a plan view and FIG. 1B is a cross-sectional view taken along a line aa in FIG.
2A and 2B show an embodiment of the present invention, in which FIG. 2A is a cross-sectional view taken along the line bb of FIG. 1B, and FIG. 2B is a view taken along the line aa of FIG.
FIG. 3 is an enlarged detail view of a driving means such as a motor and a propeller shaft portion according to an embodiment of the present invention.
[Explanation of symbols]
1 Stirring reaction tank 1a Water pipe 1b Water pipe 1c Water pipe 1d Water pipe 1e Water flow resistance plate 1e 'Notch hole
1f Regular square cylinder 1g Turbulence generating member 1h Partition plate 1h 'Partition plate 2 Turbulent flow generating propeller blade 3 Propeller shaft 4 Coupling 5 Bearing member 6 Tightening adjustment member such as turnbuckle 7 Sediment discharge port CL Tank center line M Driving means such as a motor with an inverter speed reducer T1 First stirring reaction tank T2 Second stirring reaction tank T3 Third stirring reaction tank α Predetermined angle (inclination angle)
h1 predetermined dimension h2 predetermined dimension h3 predetermined dimension l1 length dimension of second tank partition plate l2 length dimension of third tank partition plate PW contaminated water CW purified water

Claims (2)

Box-shaped stirring reaction tanks (1) that are square or rectangular in plan view are arranged in a multi-tank tank, and each stirring reaction tank has a driving means such as a motor with an inverter speed reducer at the center of the upper part. (M) the provided among the respective stirring reaction tank (1), the first tank (T1), optionally adjustable turbulence generation propeller blades of two at the top and bottom of the shaft portion of the drive motion means (2) is provided, and a regular rectangular tube surrounding the turbulent flow generation propeller blade is provided, and a bearing member (5) fixed to the tip end portion of the propeller shaft (3) by a tightening adjustment member (6) such as a turnbuckle. ) And the other reaction tanks (T2) and (T3) are provided with one arbitrarily adjustable turbulent flow generating propeller blade (2) and turn buckles at the tip of each propeller shaft (3). A shaft fixed by a tightening adjustment member (6) such as Only provided member (5), the multiple-vessel type continuous polluted water purifying apparatus is characterized in that to allow variable adjustment of the rotation and the rotation speed stable for each vessel. Box-shaped stirring reaction tanks (1) that are square or rectangular in plan view are arranged in a multi-tank tank, and the horizontal direction of the water pipes (1a) (1b) (1c) (1d) of the stirring reaction tanks The mounting position is shifted alternately left and right with the tank center line part (CL) as the boundary, and the vertical mounting position is gradually shifted downward by a predetermined dimension (h1) (h2) (h3). In addition, a regular rectangular tube (1f) is provided approximately in the middle in the vertical direction of the center of the first tank (T1) of each stirring reaction tank, and the central part of the inner peripheral four sides of each stirring reaction tank. A water flow resistance plate (1e) having two vertically elongated rectangular cutout holes (1e ') is welded in the middle of the upper and lower sides of the tank, and equilateral triangular turbulence is generated at the bottom four corners of each stirring reaction tank. The member (1g) is welded at a predetermined angle (α), and a water channel pipe (between each tank ( b) A partition plate (1h) (1h ') having a predetermined length dimension (l1) (l2) bent in a U-shape or Mt. Fuji shape is welded to the upper and lower central portions of the exit side portion of (1c). 2. A multi-tank continuous polluted water purifier according to claim 1, wherein a continuous turbulent flow is generated for each tank, and a large volume of polluted water is purified by coagulation separation in a short time. .

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