JP3624079B2 - Equipment for removing fibrous persistent materials contained in sewage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for removing fibrous refractory substances contained in sewage, and in particular, the fibrous refractory substances contained in sewage flowing into a small-scale sewage treatment plant are surely secured by simple means. The present invention relates to an apparatus for capturing and removing.
[0002]
[Prior art]
Conventionally, sewage that flows into a sewage treatment plant includes not only bulk degradable substances such as human excrement and cocoons, but also bulk refractory substances such as plastic lumps, pieces of wood and empty cans, and fiber such as hair. In particular, in a small-scale sewage treatment plant, only a simple dust removing means for removing massive, hardly decomposable substances among substances contained in sewage has been installed.
[0003]
[Problems to be solved by the invention]
As this dust removing means, it captures and removes bulky hardly decomposable substances among the substances contained in the wastewater flowing into the sewage treatment plant, pulverizes the bulky degradable substances, and introduces them into the treatment tank together with the wastewater. However, depending on the dust removing means, it is not possible to capture and remove fibrous persistent materials such as hair, and these fibrous persistent materials cannot be removed. There is a problem that the wastewater treatment is hindered by being entangled with a sensor, a pump, or the like in a treatment tank or the like installed in a treatment tank or the like, causing a malfunction of the sensor or a reduction in the treatment capacity of the pump.
[0004]
In order to cope with this problem, it is conceivable to use a very fine screen, for example, a screen having a mesh width of about 2 mm, as a screen of the dust removing means. Since a large amount of the degradable substance is trapped and the trapped residue is rotted inside the dust removing means, it is difficult to treat the trapped residue in a sanitary manner. Even when using, the fibrous persistent material could not be completely removed.
[0005]
In view of the problems of the above-described conventional sewage treatment plant, the present invention can stably capture and remove only the fibrous hardly decomposable substance contained in the sewage by simple means, thereby stabilizing the sewage treatment. It is an object of the present invention to provide a removal device for fibrous hardly decomposable substances contained in sewage that can be performed.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the removal device for fibrous hardly decomposable substances contained in the sewage of the present invention includes a strip winding drum and a winding drum installed at a position above the treatment tank in which the sewage circulates, It is characterized by comprising a guide disposed in the treatment tank in order to immerse and stretch the rope extending from the unwinding drum to the take-up drum in the treatment tank .
[0007]
The removal device of the fibrous persistent substance contained in the sewage is immersed in the treatment tank from the unwinding drum installed at a position above the treatment tank through which the sewage circulates to the take-up drum through the guide. Hang over the strips so as to hang a fiber-like degradable substance such as hair contained in the sewage circulating in the treatment tank , and intermittently or continuously from the unwinding drum By winding up on a winding drum while unwinding, the fibrous hardly decomposable substance caught on the rope is pulled up on the water surface and removed from the waste water.
[0008]
In this case, a knot can be formed on the rope.
[0009]
Thereby, the fibrous hardly decomposable substance can be pulled up on the water surface while preventing separation of the fibrous hardly decomposable substance caught on the rope.
[0010]
In addition, the guide is movably disposed so that the guide is moved together with the cord by the force received from the water flow by the fibrous persistent material that is trapped in the stretched wire immersed in the treatment tank , A sensor for detecting the amount of movement of the guide can be provided.
[0011]
Thereby, it can be detected by the output signal of the sensor that detects the amount of movement of the guide that the amount of the fibrous hardly decomposable substance captured by the rope has reached a predetermined amount, Winding can be performed properly and the operation can be automated as necessary.
[0012]
Moreover, the raising / lowering apparatus which lifts a guide to the upper position of a processing tank can be arrange | positioned.
[0013]
As a result, maintenance and inspection of the device such as a cable laying work can be easily performed.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a removal device for fibrous hardly decomposable substances contained in sewage of the present invention will be described with reference to the drawings.
[0015]
FIGS. 1-6 shows the example which applied the removal apparatus of the fibrous persistent substance contained in the sewage of this invention to the processing tank 1 used for the sewage treatment equipment of a small-scale sewage treatment plant.
As shown in FIG. 6, the sewage treatment facility of this small-scale sewage treatment plant includes various substances discharged from homes, such as lump decomposable substances such as human excrement and straw, plastic lump, This is for biological treatment of sewage containing massive refractory substances such as wood chips and empty cans and fibrous refractory substances such as hair. This sewage is first screened from the pump pit P of the sewage treatment plant. Introduced into the dust removal device 5 provided, massive refractory substances such as plastic lumps, pieces of wood and empty cans are captured and removed, and lumpy degradable substances such as human excrement and straw contained in sewage are crushed. Then, it is introduced into the treatment tank 1 together with the sewage and is biologically treated.
[0016]
The treatment tank 1 into which the sewage is introduced is configured to be circulated forcibly by the introduction of the sewage naturally or by the agitator, the aerator 6 or the like.
[0017]
By the way, the sewage introduced into the treatment tank 1 contains not only a degradable substance such as crushed human feces and wrinkles but also a fibrous persistent substance such as hair. The hardly decomposable substance entangled with the sensor or pump installed in the treatment tank 1, causing malfunction of the sensor or lowering of the treatment capacity of the pump, and this was a factor that impeded sewage treatment.
[0018]
In order to capture and remove the fibrous hardly decomposable substance such as hair, the treatment tank 1 is provided with a fibrous hardly degradable substance removing device 2.
This fibrous persistent substance removing device 2 has a main body frame 20 installed on a treatment tank 1 through which sewage circulates, and a winding drum 21 for the strip 3 above the treatment tank 1 of the main body frame 20. And a take-up drum 22 and a guide 23 disposed in the treatment tank 1 in order to immerse and stretch the rope 3 spanned from the unwind drum 21 to the take-up drum 22 in the waste water of the treatment tank 1; The shaft 3 of the winding drum 22 is intermittently or continuously rotated by a drive source 22M such as a motor, so that the wire 3 is unwound from the winding drum 21 and is wound on the winding drum 22. Winding, the fibrous persistent material caught on the rope 3 is pulled up on the water surface and removed from the sewage.
[0019]
In this case, a flexible wire material such as a wire rope, a piano wire, and a synthetic resin thread can be used for the rope 3, but when a nonflammable wire material such as a wire rope or a piano wire is used. Can be reused as needed after incineration with the fiber-like persistent material such as hair from which the strip 3 wound on the winding drum 22 has been removed from the sewage, When a combustible wire such as synthetic resin yarn is used, the cord 3 wound around the winding drum 22 may be incinerated together with fibrous refractory substances such as hair removed from the sewage. it can.
[0020]
The strip 3 is formed on the surface of the water by circulating and driving the filamentous persistent material while preventing the separation of the fibrous persistent material such as hair caught on the strip 3. The nodes 31 are formed at predetermined intervals so that they can be pulled up.
For example, the node 31 is formed by tying the rope 3 (see FIG. 5A), and may be formed by a protrusion protruding from the rope 3 (see FIG. 5B or C). it can.
[0021]
As shown in FIG. 2, the unwinding drum 21 is provided with a brake 21 </ b> B so that a predetermined tension can be applied to the rope 3.
[0022]
A guide 23 disposed in the treatment tank 1 for immersing and stretching the rope 3 in the sewage of the treatment tank 1 is composed of a J-shaped pipe member having a curved lower end. It can be inserted.
And as shown in FIG. 1, the guide 23 which consists of this J-shaped pipe member latches the wire 43 of the raising / lowering apparatus 4 for raising the guide 23 to the upper position of the processing tank 1 at the base end. The linear portion is held by the guide holding mechanism 24 disposed on the main body frame 20 so as to be slidable in the vertical direction, while the tip opening is immersed in a predetermined depth L in the sewage in the treatment tank 1. .
Further, a sheave 23S is provided at the base end of the guide 23, and the rope 3 wound on the unwinding drum 21 is hung on the sheave 23S and then introduced into the guide 23. The derived line 3 is wound around the winding drum 22.
[0023]
As shown in FIGS. 1 and 4, the guide holding mechanism 24 is provided with a swing frame 24c on a base 24a fixed to the main body frame 20 so as to be swingable via bearings 24b and 24b. Guide rollers 24d and 24d that hold the linear portion of the guide 23 so as to be slidable in the vertical direction are disposed in the moving frame 24c.
Further, on the base 24a, a swing frame 24c, that is, a stopper 24e for regulating the clockwise swing amount of the guide 23 in FIG. 1 and a sensor 24f for detecting the counterclockwise swing amount (movement amount) are arranged. Further, between the base 24a and the swing frame 24c, a spring 24g for biasing the guide 23 clockwise in FIG. 1 is disposed via the swing frame 24c.
[0024]
A pole 40 of the lifting device 4 for lifting the guide 23 to the upper position of the processing tank 1 is established at a substantially intermediate position between the unwinding drum 21 and the winding drum 22 of the main body frame 20, and a sheave 41 is formed at the upper end of the ball 40. A winch 42 is provided at an intermediate portion thereof, and a wire 43 that can be wound around the winch 42 is locked to the proximal end of the guide 23 via a sheave 41.
As a result, the wire 43 is unwound or taken up by the winch 42 of the elevating device 4 so that the guide 23 held by the guide holding mechanism 24 is slidable in the vertical direction. It is possible to move between a descending position immersed in the predetermined depth L in the sewage and an ascending position lifted above the treatment tank 1.
[0025]
In addition, this removal apparatus 2 can be installed so that two or more may be parallel in the width direction of the circulating water channel of the processing tank 1 as needed.
[0026]
Next, the usage method of the removal apparatus 2 of the fibrous persistent material contained in this sewage is demonstrated.
First, by driving the winch 42 of the lifting / lowering device 4, the guide 23 is raised and pulled up above the treatment tank 1, and in this state, the rope 3 is wound on the unwinding drum 21. After being hooked on the sheave 23S, it is introduced into the guide 23, and the wire 3 led out from the tip opening of the guide 23 is wound around the winding drum 22.
And the winch 42 of the raising / lowering apparatus 4 is driven, the guide 23 is lowered | hung so that the front-end | tip opening of the guide 23 is immersed in the predetermined depth L in the sewage of the processing tank 1 (refer FIG. 1).
At this time, a predetermined tension force is applied to the rope 3 by adjusting the brake 21 </ b> B disposed on the unwinding drum 21.
[0027]
As a result, the strip 3 is immersed and stretched in the sewage of the treatment tank 1 in which the sewage circulates, and the fiber 3 such as hair contained in the sewage circulating in the treatment tank 1 is laid on the strip 3. Persistently degradable substances will be caught.
At this time, the guide 23 is swung (moved) counterclockwise in FIG. 1 via the guide holding mechanism 24 by the force received from the water flow by the fibrous persistent material captured by the rope 3. However, by detecting the amount of movement (movement amount) of the guide 23 by the sensor 24f, it is automatically detected that the amount of the fibrous hardly decomposable substance captured by the rope 3 has reached a predetermined amount. Can be detected automatically.
Then, the shaft 3 of the winding drum 22 is intermittently rotationally driven by a drive source 22M such as a motor in accordance with the output signal of the sensor 24f, so that the length L of the rope 3 from the tip opening of the guide 23 to the water surface position is reduced. Just take up.
Thereby, while the unwinding and winding-up of the rope 3 can be performed appropriately, the operation | work can be automated as needed.
[0028]
The fibrous persistent material such as hair caught on the cord 3 is pulled up on the surface of the water while preventing separation by the nodes 31 formed on the cord 3 at a predetermined interval, and the sewage The fibrous hardly decomposable substance is taken up together with the cord 3 on the take-up drum 22.
[0029]
Note that the rotational drive by the drive source 22M such as a motor of the winding drum 22 is driven intermittently at a predetermined set time by a timer in addition to the output signal of the sensor 24f, or continuously at a slow speed. Can be configured.
[0030]
Then, the fiber-like hardly decomposable substance such as hair wound on the winding drum 22 together with the strip 3 wound all the strip 3 wound on the winding drum 21 on the winding drum 22. Thereafter, the take-up drum 22 can be removed, and the take-up drum 22 can be incinerated or discarded.
[0031]
In addition, when replacing | exchanging with the new rope 3, driving the winch 42 of the raising / lowering apparatus 4 raises the guide 23 and it pulls it up above the processing tank 1, In this state, the rope 3 is unwound drum 21 The cord 3 wound around the sheave 23 </ b> S is hung on the sheave 23 </ b> S and then introduced into the guide 23, and the cord 3 led out from the tip opening of the guide 23 is wound around the winding drum 22.
[0032]
【The invention's effect】
According to the removal device for fibrous hardly decomposable substances contained in the sewage of the present invention, from the unwinding drum installed at the upper position of the treatment tank through which the sewage circulates to the take-up drum through the guide, into the treatment tank . Hang the fiber strips, such as hair, contained in the sewage circulated in the treatment tank on the cords that are soaked and stretched, and intermittently or continuously the cords By winding up on the winding drum while unwinding from the winding drum, the fibrous hardly decomposable substance caught on the rope can be pulled up on the water surface and removed from the waste water.
And the fibrous hardly decomposable substances, such as hair removed from the sewage, can be incinerated or discarded together with the strips wound on the winding drum.
This prevents malfunction of the sensor due to the entanglement of fibrous persistent materials, reduces the processing capacity of the pump, etc., enables stable sewage treatment, and the screen of the dust removal means is extremely fine. In the dust removal means, a large amount of degradable substances such as human excrement and sputum are trapped in the dust removal means, and the trapped residue is not spoiled inside the dust removal means. The treatment can be performed hygienically and easily, and the fibrous persistent material such as hair removed from the wastewater can be easily treated.
[0033]
Further, by forming a node in the rope, the fibrous persistent material can be pulled up on the water surface while preventing the fibrous persistent material caught on the rope from being detached.
[0034]
In addition, the guide is movably disposed so that the guide is moved together with the cord by the force received from the water flow by the fibrous persistent material that is trapped in the stretched wire immersed in the treatment tank , By arranging a sensor that detects the amount of movement of the guide, the output signal of the sensor that detects the amount of movement of the guide indicates that the amount of the fibrous refractory substance captured by the rope has reached a predetermined amount. It can be detected, and the unwinding and winding of the rope can be performed appropriately, and the operation can be automated as necessary.
[0035]
In addition, by arranging an elevating device that lifts the guide to a position above the processing tank , it is possible to easily perform maintenance and inspection of the device, such as a cable laying work.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of an apparatus for removing a fibrous persistent material contained in sewage according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a side view of the unwinding drum.
FIG. 4 is a plan view of a guide holding mechanism.
FIG. 5 is an explanatory diagram showing an example of nodes formed on the rope.
FIG. 6 is an external appearance explanatory view showing an example of a sewage treatment facility in a small-scale sewage treatment plant to which the apparatus for removing a fibrous persistent material contained in sewage of the present invention is applied.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Processing tank 2 Removal device of a fibrous refractory substance 20 Main body frame 21 Unwinding drum 22 Winding drum 23 Guide 24 Guide holding mechanism 24c Oscillating frame 24f Sensor 3 Strip 31 Node 4 Pole

Claims (4)

In order to immerse and stretch the wire unwinding drum and take-up drum installed above the treatment tank where the sewage circulates, and the wire extending from the unwinding drum to the take-up drum in the treatment tank . processing Ri Do from disposed the guide and into the tank, while unwinding from the drum unwinding the rope, taken up by the take-up drum, pulling the hardly decomposable substance hooking tinged fibrous rope onto the water surface, removing apparatus hardly decomposable fibrous material contained in the wastewater, characterized that you removed from the wastewater. 2. The apparatus for removing fibrous hardly decomposable substances contained in sewage according to claim 1, wherein nodes are formed on the rope. The guide is movably disposed so that the guide is moved together with the cord by the force received from the water stream by the fibrous persistent material trapped in the rope immersed and stretched in the treatment tank . 3. The apparatus for removing a fibrous hardly decomposable substance contained in sewage according to claim 1, further comprising a sensor for detecting the amount of movement. The apparatus for removing a fibrous persistent substance contained in sewage according to claim 1, 2 or 3, further comprising a lifting device for lifting the guide to a position above the treatment tank .

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