JPH07163Y2 - Mud collector in settling tank - Google Patents

Description

[Detailed description of the device] [Industrial applications]

TECHNICAL FIELD The present invention relates to a mud collector used in a sedimentation layer for precipitating sludge containing sand and clay, which is generated when gravel, crushed stone, or ceramic raw material is obtained, to separate a sediment.

[Prior art]

In order to prevent burial of mud collecting materials, this kind of conventional mud collecting equipment suspends mud collecting materials with a chain on a rotating body according to the resistance of the sedimentation layer, as in JP 59-21848. It is effectively used to pull the material while vertically displacing it. That is, the sludge collecting material is always placed on the upper part of the sedimentation layer and pulled.

[Problems to be solved by the device]

However, as for the mud collecting material by the rotating body, it is preferable that the traction interval in the lateral direction between the rotating body A and the mud collecting material B is short as shown in FIG. If the pulling interval of the rod becomes long, that is, if the connecting member approaches the horizontal direction, the load on the mud collecting member becomes large, and the rotating body may be overloaded and may not rotate smoothly.

[Means for Solving the Problems]

Therefore, the present invention provides a device capable of optimizing the durability of the device and the mud collecting effect by controlling the pulling interval of the mud collecting material so as not to cause an excessive overload on the device. Therefore, according to the present invention, a rotating body that is rotated by a motor or the like is arranged above the water surface of the settling tank, and the lifting ring is loosely inserted into the rotating shaft of the rotating body arranged in the center of the settling tank, and the inner end is lifted up and down. The heavy sludge collecting material connected to the rotating body is connected by a connecting material such as a chain connected to the rotating body to suspend and support the sludge collecting material. The detector is provided with a detector for detecting the overload traction, and a connecting material adjusting device for winding up and shortening the connecting material by the detection to shorten the lateral pulling interval of the sludge collecting material.

[Action]

The rotation of the rotary shaft causes the mud collecting material to rotate together through the rotating body and the connecting material, and the mud collecting material stirs and collects the sedimented layer. At this time, the mud collecting material rotates while being pulled by the rotating body, but the mud collecting material is vertically displaced along with the lifting ring according to the resistance in the heavy sedimentation layer. That is, if the sedimentation layer becomes heavier, the resistance of the sediment causes the rotation of the mud collecting material to be delayed compared to the rotating body, so the connecting material that was initially hanging becomes slanted and the mud collecting material is gradually lifted. Therefore, the sludge collector is always located above the sedimentary layer. Then, as the mud collecting material rotates, the sediment is gradually scraped from the upper part of the sedimentation layer to collect the mud. If the sedimentation layer is light, the mud collecting material is pulled by its own weight and is pulled and rotated to collect mud. Further, in the present invention, when the traction angle of the connecting member approaches the horizontal direction in the overload traction state in which the traction interval in the lateral direction with the rotating body mud collecting material becomes longer due to the resistance of the sedimentation layer, the inclination displacement is caused. Is detected by the detector and the connecting material adjusting device shortens the connecting material to shorten the lateral pulling interval, thereby attracting the sludge collecting material. This makes it possible to reduce the load on the sludge collecting material.

【Example】

Hereinafter, details of the present invention will be described with reference to illustrated embodiments. In the apparatus of this example shown in FIGS. 1 to 3, K is a rotating body formed by arranging arms 1 in a cross shape, and wheels 2 provided at both ends of the rail are provided around the upper end of a circular settling tank S. The rotating body K is placed on the rail R so as to be rotatable on the rail R. The crossing portion of the arm 1 of the rotating body K is fixed to the rotating shaft 3 rotated by the motor M, and the rotating body K rotates about the rotating shaft 3 arranged in the center of the settling tank S.
The lower end of the rotary shaft 3 is rotatably supported by a support base 3a via a bearing. Also, a lifting ring 4 is provided below the rotary shaft 3.
Is loosely inserted, and the sludge collector 6 is attached to the lifting ring 4 via the chain ring 5.
The inner ends of are joined together. The arm 1 of the rotating body K is provided with a chain block E, and as shown in FIG. 3, the chain 7 is inserted into the chain guide cylinder F fixed to the arm 1 so as to insert the chain 7 into the outer end portion of the mud collecting material 6. The mud collecting material 6 is suspended from the rotating body K by being connected to. Further, proximity switches G and H for detecting the inclination angle of the chain 7 are attached to the front and rear of the arm 1. When one of the proximity switches G is detected, the chain block E is activated to activate the chain 7.
Is pulled up, the chain block E is operated by the detection of the other proximity switch H, and the chain 7 is fed out. It should be noted that a pair of sludge collectors 6 are provided in a straight line, and therefore a pair of chain blocks E are also installed. Further, the mud collecting material 6 is heavy and has a mud collecting plate 6a attached thereto. Further, 8 is a sediment discharge pipe, 9a is a hover flow pipe provided around the inner periphery of the sedimentation tank S, and 9 is an overflow pipe 9a.
It is a drainage pipe that communicates with. Since this embodiment is configured in this way, the arm 1 of the rotating body K pulls the mud collecting material 6 and rotates by driving the motor M, so that the sediment is collected in the center by the mud collecting plate 6a and the discharge pipe 8 is provided.
It is repeatedly discharged from. When the precipitation advances and the precipitation layer becomes heavy, the resistance of the mud collecting material 6 delays the rotation of the mud material 6 after the rotation of the rotating body K (see FIG. 2). Therefore, since the chain 7 that was initially hanging becomes slanted, the lifting ring 4 rises and the sludge collecting material 6 is gradually lifted and is positioned almost horizontally above the heavy sedimentation layer. Thus, even if the sedimentation tank S is not constantly monitored, the heavy sedimentation layer lifts up the mud collecting material 6, and in this state, the heavy sedimentation material 6 in a substantially horizontal state gradually moves from above the sedimentation layer. It collects mud on the bottom of the center. The characteristic action in this example is as shown in FIG.
When the lateral pulling distance between the arm 1 and the mud collecting material 6 becomes long due to the sedimentation resistance of the settling layer, the load (arrow vector V) in the anti-rotation direction becomes large and the overload pulling state occurs. In this case, the chain 7 is rotationally displaced in the horizontal direction, and the proximity switch G detects the tilt displacement of the chain 7, and the chain block E is operated to pull up the chain 7. As a result, the sludge collecting material is attracted as shown by the phantom line in FIG. 3, and the load on the sludge collecting material can be reduced. In addition, when the sediment layer becomes low due to the discharge of the sediment, the load on the mud collecting material 6 becomes small and the chain 7 becomes in a drooping state. Therefore, the proximity switch H detects the displaced chain 7.
Since the chain block E is operated and the chain 7 is fed out, the sludge collecting material 6 is arranged on the upper part of the sedimentation layer by its own weight. As described above, according to this example, by operating the chain block E by the proximity switches G and H, the length of the chain 7 can be appropriately controlled and the sludge collecting material 6 can be pulled. Moreover, as the lifting ring 4 is displaced up and down as the sediment deposition changes, the sludge collecting material 6 can be maintained in a horizontal state at all times, so that the sediment can be well stirred. The supernatant liquid in the tank S is guided from the overflow pipe 9a to the drain pipe 9 and drained. Although this example is configured as described above, the present invention is not limited to this. For example, the shapes and configurations of the rotating body and the mud collecting material and the rotating configuration of the rotating body do not matter. Further, the number and attachment state of the sludge collecting material are not limited, and the sludge collecting material may be connected to the lifting ring in an inclined manner. Further, the type of detector that detects the inclination angle of the connecting member is not limited. The type of the connecting material is also appropriate, and the configuration of the connecting material adjusting device that winds up the connecting material to shorten it by detection to shorten the traction interval in the lateral direction of the mud collecting material is not limited.

[Effect of device]

According to the present invention, when an overload traction state occurs in which the traction interval between the rotating body and the mud collecting material in the lateral direction becomes longer due to the resistance of the sedimentation layer, the detector detects the inclination angle of the connecting material. The connecting material adjusting device winds up the connecting material by pulling up the connecting material for a short time, and the displacement of the lifting ring can always hold the installed material in the initial installation state, thus reducing the load on the collecting material. Greatly improves durability and optimizes mud collection effect.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a longitudinal sectional front view of an essential part showing a state in which a chain is pulled up to draw a sludge collecting material, and FIG. It is a top view of the conventional traction state. 1: Arm, 2: Wheel, 3: Rotating shaft, 4: Lifting ring, 5: Chain ring, 6: Mud collecting material, 6a: Mud collecting plate, 7: Chain, K: Rotating body, E: Chain block, F : Chain guide tube, S: Sedimentation layer, M: Motor, R: Rail.

 ─────────────────────────────────────────────────── ───Continued from the front page (56) References Microfilm (JP, U), which is a photograph of the details and drawings attached to the application for Japanese Patent Application No. Sho 61-17333 (No. Sho 62-130707). ) A microfilm (JP, U) of the contents of the specification and drawings attached to the application for Japanese Utility Model Application No. 46-2879 (No. 47-2757, Japanese Utility Model Application).

Claims (1)

[Scope of utility model registration request] 1. A rotating body which is rotated by a motor or the like is arranged above the water surface of the settling tank, and an elevating ring is loosely inserted into the rotating shaft of the rotating body arranged in the center of the settling tank to enable lifting and lowering. The heavy sludge collecting material that is connected to the lifting ring is connected by a connecting material such as a chain that is connected to the rotating body to suspend and support the sludge collecting material. Precipitation characterized by having a detector that detects overload traction of the sludge collecting material, and a connecting material adjustment device that winds up and shortens the connecting material by the detection and shortens the traction interval in the lateral direction of the sludge collecting material. Mud collector in the tank.