JPS585697Y2 - Dust removal equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dust removal device installed in a waste water channel.

Conventionally, as a device for scraping off dust adhering to a screen installed in a waterway to perform dust removal, a scraper is hung on a winding device so that it can be raised and lowered across the screen and a guide rail extending above the screen. The lowered version is used.

However, when discharging the dirt scraped by the scraper from the scraper, the upper end of the guide rail is curved and the scraper is tilted, which makes the device dependent on the dog and makes it difficult to discharge. was insufficient.

The present invention provides a dust removal device that can reliably discharge dust from a scraper with a simple configuration. The scraper has a movable frame which is pivoted to the main body frame so as to be movable up and down and has a garbage scooping plate at the lower free end which can be approached to the screen; A garbage scraping plate located on the screen side of the movable frame, rotatably supported on the main body frame, and whose lower end is movable along the upper surface of the scooping plate, and between the scraping plate and the main body frame. It is integrally equipped with a cylinder device that is interposed and rotates the scraping plate, and the scraping plate portion and the movable frame portion are provided with abutting portions that contact each other, and the cylinder device rotates the scraping plate and the movable frame. The frame is movable up integrally with the frame, and one embodiment thereof will be described below based on the drawings.

1 is a groove-shaped waterway, and a screen 2 closes the waterway 1
is installed in an inclined position.

The screen 2 is made up of a large number of vertically extending plates 2a.

Reference numeral 3 denotes a movable guide rail extending above the screen 2, and the guide rail 3 is provided on a cart 5 installed on the base frame 4 so as to be horizontally movable over the entire width of the waterway 1.

The guide rail 3 is formed in a straight line with the same inclination angle as the screen 2.

6 is a scraper that can be raised and lowered over the screen 2 and the guide rail 3.

The scraper 60 main body frame T is configured as a trolley and has wheels 3 that roll in contact with the screen 2.

A movable frame 9 having a substantially U-shaped side surface is pivotally supported at the lower end of the main body frame 7 so as to be movable up and down about a support shaft 10.

The movable frame 9 extends between a pair of U-shaped members 11 and 11,
A scoop plate 12 is provided on the upper surface of the arcuate lower side of the U-shaped member 11.11.

The scoop plate 12 is made of a perforated plate such as punched metal.

A plurality of reinforcing plates 13 are arranged on the lower surface of the scoop plate 12 in parallel with the U-shaped members 11.11, and these reinforcing plates 13 are fixed to rods 14 provided between the two U-shaped members 11.11.

A roller 15 is provided at the lower end of both U-shaped members 11 to make rolling contact with the screen 2.

A scraping plate 16 is arranged at a position on the screen 2 side of the movable frame 9.

The scraping plate 16 is attached to the main body frame 1 via the support shaft 1o of the movable frame 9.
A pair of plate-shaped arms 17.17
The lower edge of the scooping plate 16 is movable along the upper surface of the scooping plate 12.

In order to interlock and connect the scraping plate 16 and the movable frame 11, abutting portions 18 and 19 are provided between the scraping plate 16 and the movable frame 11, respectively, so as to abut each other in the rotating direction.

The contact portion 19 of the movable frame 11 is constituted by a beam installed between both U-shaped members 11.11.

The abutting portion 18 of the scraping plate 16 consists of a rubber boss-like body protruding from a beam 20 installed between both arms 17 and 17.

A pair of cylinder devices 21 and 21 are interposed between the scraping plate 16 and the main body frame 7.

The cylinder main body 21a of the cylinder device 21 is rotatably supported on the upright frame portion 7a at the upper end of the main body frame 1 about a support shaft 22.

The piston rod 21b of the cylinder device 21 is the scraping plate 1
The support shaft 2 is attached to the beam 23 provided between both arms 17 and 17 of 6.
It is rotatably connected in 4 turns.

Note that the main body frame 1 is suspended from a performance device 25 provided at the upper end of the guide rail 3 via a pair of cable members 26 .

In Figure 2, 21 is a belt conveyor for garbage discharge,
28 is a shoot.

Next, the operation will be explained.

When the scraper 6 is positioned at the lower end of the screen 2, the stroke of the piston rod 21b of the cylinder device 21 is maintained at a neutral position, thereby setting the movable frame 9 to a rotating position where the roller 15 contacts the rail 2Vc, In addition, the scraping plate 16 is set at a rotational position within the movable frame 9 that is farthest from the rail 2, that is, a rotational position where both liquid contact parts 18 and 19 are in contact with each other.

In this state, the scraper 6 is raised by the winding device 25,
As a result, the dust adhering to the screen 2 is removed from the scraper 6.
is scraped onto the scoop plate 12.

The scraper 6 loaded with garbage is raised along the guide rail 3 as it is, and the scraper plate 16 is moved to the third position by the extending operation of the cylinder device 21 at the upper end position of the guide rail 3.
Move it toward the guide rail 3 as shown by the two-dot chain line in the figure.

As a result, the dirt on the scooping plate 12 of the scraper 6 is scraped off to the back side of the guide rail 3, and the scraped dirt reaches the belt conveyor 27 via the chute 28, and is carried out by the belt conveyor 21. Ru.

In this way, the dust on the scooping plate of the scraper 6 is scraped out by the scraper plate 16, so there is no need to curve the guide rail as in the conventional dust removal device, and the scraper 6 can be hung easily. The configuration is simple, and the dust can be reliably discharged from the scraper 6.

When scraping is completed, the piston rod 21b of the cylinder device 21 is shortened to its shortest position.

As a result, the scraping plate 16 rotates until it comes into contact with the abutting portion 19 of the movable frame 9, and then further rotates to the position shown by the dashed line in FIG. 3 while lifting the movable frame 9.

In this manner, the scraper 6 is lowered to the lower end position of the screen 2 with the movable frame 9 and the scraper plate 16 separated from the guide rail 3.

Thereby, the scraper 6 can be lowered without causing the dust adhering to the screen 2 to be inadvertently resuspended in the water.

When the lower end position is reached, the cylinder device 21 is extended to the neutral position, the movable frame 9 is brought into contact with the screen 2 as described above, and the above-mentioned raking operation is repeated.

In this way, dust is removed from the screen 2.

By the way, conventionally, when lowering the scraper, the scooping plate was separated from the screen by operating the rope of the hoisting device, but according to the above structure, the rotation of the scooping plate 12 is driven by the cylinder device 21 that drives the scraping plate 16. Since it is also used, a dedicated device for rotating the scoop plate 12 is not required and the configuration is simple.

Note that if stoppers for fixing the main body frame 7 are provided at the lower end of the screen 2 and the upper end of the guide rail 3, the scraping plate 16 can be opened and closed stably.

Furthermore, if the abutting portions 18 and 19 are fitted in the form of a roller catch, the swinging motion of the scraper 6 can be made smooth.

As explained above, the present invention is provided with a scraping plate that swings along the upper surface of the scoop plate of the scraper, and is configured to swing the scraping plate with a cylinder device. When discharging the screen dust scraped onto the scoop plate from the scraper, there is no need to curve the guide rail, and not only can the dust be reliably discharged, but the cylinder device can also be used as a scraper. Because it has an integrated structure, the scraping plate can be operated at any position on the guide rail.
Not only can garbage be discharged at the optimal height position corresponding to the working conditions, but also the working time can be shortened.

Furthermore, since the cylinder device for driving the scraping plate also serves as a drive for moving the scooping plate away from the screen, a dedicated means for driving the scooping plate is not required, and the structure is simple.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, with Figure 1 being a front view and Figure 2 being a front view.
The figure is a side view, FIG. 3 is a longitudinal sectional side view of the scraper, and FIG. 4 is a rear view thereof. DESCRIPTION OF SYMBOLS 1...Waterway, 2...Screen 3...Guide rail, 6...Scraper, 1...Body frame, 8...Roller, 9...Movable frame, 12... Scooping board, 16...
Scraping plate, 17... Arm, 18.19... Contact portion, 21... Cylinder device, 25... Hoisting device, 26
...Cable material.

Claims (1)

[Scope of utility model registration request] The main body frame of the scraper, which can be raised and lowered along a screen installed in the waterway, is suspended from a hoisting device via a material. a movable frame having a garbage scooping plate that can be accessed to the screen at an end;
The scraper is located on the screen side of the movable frame, is rotatably supported on the main body frame, and is interposed between the main body frame and a garbage scraper plate whose lower end is movable along the upper surface of the scoop plate. The scraping plate and the movable frame are integrally equipped with a cylinder device that rotates the scraping plate, and the scraping plate portion and the movable frame portion are provided with abutting portions that contact each other, and the scraping plate and the movable frame are integrally raised by the cylinder device. A dust removal device characterized in that it is movable.