JPH061204Y2 - Screen cleaning device for separator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a screen cleaner for a separator for separating and removing solids such as sand and dust mixed in a liquid.

(Prior Art) As a conventional technique, a screen having a water supply chamber and a drainage chamber at its upper and lower portions is equipped with a screen that separates the water supply unit and the drainage unit, and a pair of sprockets are provided on both sides of the back surface of the screen. Attached to a shaft arranged parallel to the screen surface, wind an endless chain around each sprocket, extend a cylindrical brush with pinions on both ends in the direction orthogonal to the chain to contact the back surface of the screen, Engage each pinion in a box that extends parallel to the chain and is fixed to a rack that is fixed, attach a connecting tool to the chain, and attach a slider that can move in the direction orthogonal to the chain extension direction to the connecting tool. In some cases, a brush shaft is rotatably connected to the motor and a motor for rotating the sprocket is provided (Japanese Patent Publication No. 57-26803).
Issue).

(Problems to be solved by the invention) In the above-mentioned conventional one, since the brush contacts only the back side of the screen, the adhered matter adhering to the front side of the screen cannot be removed, and the clogging of the screen quickly separates. There was a drawback that the function deteriorated.

In addition, since devices such as a screen, a brush, a sprocket for driving the brush, and a chain are attached to the box side, there is a drawback that maintenance and inspection of these devices requires time and labor.

It is an object of the present invention to provide a novel separator screen cleaning device that overcomes the above drawbacks.

(Means for Solving the Problems) The present invention is configured as follows in order to achieve the above object.

That is, a water supply chamber to which a liquid mixed with an impure solid substance is supplied is provided in an upper portion of the box body, and a drainage chamber for discharging the liquid separated from the impure solid substance to the outside is provided in a lower portion of the box body. A frame is rotatably provided to the front of the screen, and a screen is provided on the frame with its lower part directed forward and inclined downward. The water supply chamber is opened above the front side of the screen, The drainage chamber is arranged on the back side of the screen, a screen is provided, and an endless brush traction body that surrounds the screen in the front-back direction is rotatably provided on the frame body, and the brush traction body extends along the front and back surfaces of the screen. A plate-shaped front surface brush and a cylindrical back surface brush that extend in a direction orthogonal to the brush retractor and contact the front surface and the back surface of the screen are provided in the front side intermediate part and the back side intermediate part of the back surface brush. Rotating on brush towing body And pinions on both ends of the frame, and the pinion is engaged with a rack that extends and is fixed to the frame body in parallel with the brush traction body. A rotary wheel is rotatably provided in the section so that its rotation axis is orthogonal to the screen surface, and a motor for driving the rotary wheel is provided. An endless drive traction body is wound around each rotary wheel, and the drive traction is performed. The body is provided with a conversion mechanism for converting the rotational movement of the drive / traction body into a linear reciprocating movement, and the output end of the conversion mechanism is connected to the brush traction body.

(Operation) Since the present invention is configured as described above, the liquid to be treated flowing out of the water supply chamber passes through the screen and flows into the drainage chamber, and solids mixed in the liquid to be treated are captured by the screen, Will be separated from.

In this state, when the motor is started, the rotary wheel is rotated to rotate the drive traction body, and this rotation is converted into a linear reciprocating motion by the conversion mechanism and transmitted to the brush traction body. Rotate forward and backward.

The front and back brushes are reciprocally moved in opposite directions by the forward and reverse rotations of the brush retractor, the front brush slides on the surface of the screen, and the back brush has pinions attached to both ends of the back brush rolling on the rack. Then, it comes into sliding contact with the back surface of the screen while being rotated.

Further, when the frame body is rotated outward from the box body, the screen, the brushes, and the devices that drive the brushes are collectively exposed to the outside from the box body.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

In the drawings, FIG. 1 is a partial cross-sectional side view showing an embodiment of the present invention, FIG. 2 is a view showing an essential part A thereof, and FIG. 3 is II of FIG.
It is an I-III sectional view.

In FIG. 1, reference numeral 1 is a box, which has a hook-shaped shielding plate 2 on the upper part to partition the inside into upper and lower parts, a small-capacity water supply chamber 3 on the upper part, and a large-capacity drainage chamber 4 on the lower part. To do.

The right portion of the shielding plate 2 is erected upward and the upper end portion thereof is curved downward so that the overflow port 3 is provided at the front portion of the top of the box 1.
b is formed.

A water supply port 3a connected to the water supply pipe and a drain port 4a connected to the drain pipe are formed on the rear surfaces of the water supply chamber 3 and the drainage chamber 4, respectively.

Further, the front surface (right surface in FIG. 1) 1a of the box 1 is inclined at an angle of about 45 degrees with respect to the bottom surface, and the lower portion except the upper end portion is largely opened.

A frame 5 framed in a rectangular shape is fitted in the opening, and the lower end of the frame 5 is connected to the box 1 by a pin 6 so as to be pivotable outward as shown by the phantom line in FIG. To do.

A screen 7 is attached to the entire back surface of the frame body 5. The screen 7 is formed by horizontally extending a wire rod having a triangular cross-section, the back surface 7b of which has a mountain-shaped front surface 7a and which is vertically arranged at a predetermined pitch.

The screen 7 has its upper end facing the bottom surface of the overflow port 3b and its lower end positioned at the lower end of the opening formed in the front surface 1a of the box 1, thereby partitioning the water supply chamber 3 and the drainage chamber 4. .

A groove-shaped frame 10 is horizontally bridged and fixed to an intermediate portion of the upper surface of the frame body 5 in the vertical direction. As shown in FIGS. 2 and 3, a pair of sprockets are provided on both left and right sides of the frame 10. 11 is rotatably attached. The rotation axis of each of these sprockets 11 is arranged in the direction orthogonal to the plane of the screen 7, and the right sprocket 11 is connected to a motor (geared motor) 12 which is erected and supported by the frame body 5.

A drive traction body 13 made of an endless chain is wound around each sprocket 11, and a shaft 14 is hung and fixed on the drive traction body 13 in a direction orthogonal to the surface of the screen 7, and a drive roller is attached to a lower end portion of the shaft 14. Mount 15 rotatably.

Further, a slider 16 is attached to the lower portion of the frame 10 so as to be slidable in the longitudinal (horizontal) direction of the frame 10, and an elongated slot 16a is formed on the upper surface of the slider 16 in a direction orthogonal to the extension direction of the drive / traction body 13. The drive roller 15 is rollably fitted into the long groove 16a.

The length of the long groove 16a in the lengthwise direction is determined by the sprocket 11
It is formed to be slightly larger than the diameter of the drive roller 15, so that when the drive roller 15 turns the sprocket 11, the drive roller 15 rolls in the vertical direction in the long groove 16a, and the rotational movement of the drive towing body 13 is increased. Slider 1 converted to linear reciprocating motion
Reciprocate 6 in the left-right direction.

The drive roller 15 and the long groove 16a form a conversion mechanism that converts the rotational movement of the drive traction body 13 into a linear reciprocating movement.

Further, as shown in FIG. 3, four rollers 2 are provided on both the left and right sides of the frame body 5 and on the outer side of each sprocket 11.
0 is rotatably attached, and a brush traction body 21 made of an endless rope is wound around each of these rollers 20.

The rotation axis of the roller 20 is arranged in the direction orthogonal to the rotation axis of the sprocket 11, and the brush pulling member 21
Circulates the upper and lower surfaces of the screen 7 and positions the upper moving side 21a thereof below the drive traction body 13 and connects the upper moving side 21a to the lower portion of the slider 16 described above.

Further, as shown in FIG. 1, a plate-shaped brush base 22 is fixed to the lower part of the slider 16, and the surface brush 2 which contacts the surface 7 a of the screen 7 is fixed to the lower part of the brush base 22.
Install 3. The surface brush 23 extends over substantially the entire length of the screen 7 in the vertical direction.

A bearing 21c is attached to the lower moving side 21b of the brush pulling body 21, and a mandrel 24a of a cylindrical back brush 24 is rotatably fitted and supported on the bearing 21c at its axially intermediate portion.

The back brush 24 extends over substantially the entire length in the vertical direction of the screen 7 so that its outer peripheral portion contacts the back surface 7b, and the pinions 25 are fixed to both upper and lower ends of the mandrel 24a.

The pinion 25 is engaged with a rack 26 fixed to the upper and lower ends of the frame body 5 by extending in the left-right direction (extending direction of the brush traction body 21).

Next, the operation mode of the above embodiment will be described.

The liquid to be treated supplied into the water supply chamber 3 through the water supply port 3a flows out through the overflow port 3b toward the surface of the screen 7, and is separated into a solid and a liquid at this portion, and the liquid is discharged into the screen 7 The solids that have passed through and flowed into the drainage chamber 4, are discharged from the drainage port 4a to the outside of the box 1, and are captured by the screen 7,
After driving the upper surface 7a of the screen 7 downward,
It will fall from the lower end to the front part outside the box 1.

In this state, when the motor 12 is activated, the sprocket 11 rotates and the drive traction body 13 rotates, and this rotational movement causes the conversion mechanism, that is, the drive roller 15 and the long groove 16 to rotate.
It is converted into a linear reciprocating motion by a and transmitted to the brush traction body 21, and the brush traction body 21 rotates in the left and right directions in the forward and reverse directions in FIG.

By rotating the brush pulling body 21 forward and backward, the surface brush 2
3 and the back brush 24 are reciprocated in the left-right direction in opposite directions, the front brush 23 is in sliding contact with the front surface 7a of the screen 7, and the back brush 24 has pinions 25 attached to both ends thereof rolling on the rack 26. While being rotated, it comes into sliding contact with the back surface 7b of the screen 7.

As a result, solids such as sand attached to the front and back surfaces 7a and 7b of the screen 7 are removed.

Further, as shown by the phantom line in FIG. 1, when the frame body 5 is rotated outward (rightward) from the box body 1, the screen 7, the brushes 23 and 24, and the towing bodies 13 that drive these, 21
Devices such as the above are exposed to the outside from the box 1 in a lump, so that maintenance and inspection or replacement of the screens 7, the brushes 23, 24, etc. can be easily performed.

(Effect of the Invention) As is clear from the above description, according to the present invention, the brush is in sliding contact with the front surface and the back surface of the screen, so that the separating function of the screen can be favorably maintained for a long period of time, and The effect is that maintenance and inspection or replacement of the brush and the device that drives the brush can be easily performed.

[Brief description of drawings]

FIG. 1 is a partial sectional side view showing an embodiment of the present invention, FIG. 2 is a principal part A thereof, and FIG. 3 is a III-III sectional view of FIG. 1: box, 1a: front surface, 2: shielding plate, 3: water supply room, 3
a: water supply port, 3b: overflow port, 4: drainage chamber, 4a: drainage port, 5: frame body, 6: pin, 7: screen, 7a: front surface, 7b: back surface, 10: frame, 11: sprocket, 12: motor, 13: drive towing body, 14: shaft, 1
5: drive roller, 16: slider, 16a: long groove, 2
0: roller, 21: brush pulling body, 21a: upward moving side, 2
1b: downward movement side, 21c: bearing, 22: brush base, 2
3: Front brush, 24: Back brush, 24a: Mandrel, 2
5: Pinion, 26: Rack.

Claims (1)

[Scope of utility model registration request] 1. A water supply chamber to which a liquid containing an impure solid substance is supplied is provided at an upper portion of a box body, and a drainage chamber is provided at a lower portion of the box body to discharge a liquid having an impure solid substance separated to the outside. A frame is rotatably provided to the front part of the box body so as to be rotatable forward, a screen is provided on the frame body, and a lower portion thereof is directed forward and inclined downward, and the water supply chamber is opened above the front side of the screen. , The drainage chamber is disposed on the back side of the screen, an endless brush traction body surrounding the screen in the front and back directions is rotatably provided on the frame body, and a brush traction body extending along the front and back surfaces of the screen is provided. A plate-shaped front surface brush and a cylindrical back surface brush, which extend in a direction orthogonal to the brush retractor and contact the front surface and the back surface of the screen, are provided in the front-side intermediate portion and the back-side intermediate portion. Rotatably connected to the towing body Together, pinions are attached to both ends of the frame, and the pinions are engaged with a rack that extends and is fixed to the frame body in parallel with the brush traction body. , The rotation axis of which is rotatably provided with its axis of rotation orthogonal to the plane of the screen, and a motor for driving the rotation wheels is provided, and an endless drive traction body is wound around each rotation wheel. A cleaning device for a separator screen, characterized in that a conversion mechanism for converting the rotational movement of the drive traction body into a linear reciprocating movement is provided, and the output end of the conversion mechanism is connected to the brush traction body.