JPH04100Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a bar screen type dust remover.

(Prior Art) In general, a dust remover used for pre-treatment of sewage flowing into a sewage treatment plant has a pair of frames that are erected and slanted downstream in a waterway so as to face the flow. A plurality of screen bars are arranged in parallel at equal intervals between the frames. A comb-shaped scraping rake is provided between a pair of loop-shaped conveyance chains that run along the back surface of the screen bar so as to protrude from the gap between each screen bar toward the surface side. Large slag flowing in the waterway is captured on the surface of the screen bar, and is dropped from the upper end of the screen bar downward into the slag cage fixed by the running of the raking rake. had been collected.

As shown in FIG. 4, the conventional means for fixing the slag basket a is, for example, by protruding a concrete pedestal d provided at the bottom of the waterway c on the downstream side of the dust remover b upward from the flowing water surface. As shown in Figure 5, place the slag basket a on the
Bracket e facing the side wall of waterway c on the downstream side of
The brackets e were mounted facing each other, and the slag cage a was supported like a bridge between the brackets e and e.

(Problem to be solved by the invention) However, the above-mentioned conventional means for emplacement of the slag basket a not only requires incidental construction at the site where the dust remover is installed, which increases equipment costs, but also when a concrete frame d is installed, As the water flow resistance increases, small slag f that has passed through the screen bar accumulates in the water channel c below the dust remover b, giving a large resistance to the running of the rake g. Also, when placed on brackets e and e, the gap between dust remover b and slag basket a is determined by visual measurement. There were some problems, such as not being able to do it smoothly.

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, it is an object of the present invention to provide a dust remover equipped with a slag basket that is simple in structure, easy to handle, and prevents interference with a rake.

(Means for Solving the Problems) The dust remover of the present invention includes a plurality of screen bars arranged in parallel at equal intervals between a pair of left and right frames that are inclined toward the downstream side in a waterway, and This dust remover is equipped with a plurality of comb-like scraping rakes installed between a pair of left and right endless chains running along the back side of a screen bar and protruding from the gap between the screen bars to the surface side. It's hot,
A slag basket is removably suspended from the upper ends of both frames, and the slag cage is provided with a hanging hand for suspending and supporting the slag cage at a position that does not come into contact with the raking rake. be.

(Function) The effect of the above means is that the slag basket is suspended from the upper ends of the frames on both sides, so that the main body of the basket is
An appropriate fixed position for directly facing the falling direction of the slag is always reproduced, and contact with the tip of the raking rake is avoided.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

A dust remover 1 shown in FIG. 1 is installed inside a waterway 2 flowing in a direction A relative to sewage treatment equipment (not shown) or the like. The dust remover 1 includes a pair of left and right frames 3, 3 that are installed in a waterway 2 with an inclination toward the downstream side.
A plurality of screen bars 4, 4, etc. are arranged in parallel at equal intervals between them, and a pair of left and right endless chains 5, 5 running along the back surface of the screen bars are provided with comb-like teeth installed at equal intervals. Kakiage rake 6, 6... and
It consists of a drive device 7 and a slag basket 8 detachably suspended from the upper ends of the frames 3, 3.

The frames 3, 3 are erected at the bottom of the water channel 2 so as to face each other in the left and right direction and maintain an inclination angle θ ₁ to the downstream side with respect to the vertical direction, and a supporting leg 9 is provided on the downstream side. It is being

The screen bars 4, 4, . . . have lower end portions fixed to the frames 3, 3, and upper end portions curved downward to be free ends.

The endless chains 5, 5 have a pair of upper and lower running sprockets 1 which are pivotally connected to the frames 3, 3.
It spans 0, 10... A plurality of horizontal rods 11, 11... are installed at equal intervals between the endless chains, and the comb-shaped scraping rake 6 is installed on each horizontal rod from the gap between the screen bars 4, 4... to the surface side thereof. It is prominently planted.

The drive device 7 includes a motor 1 with a reduction gear mounted on a motor stand 12 installed between the upper ends of both frames 3, 3.
3 is fixedly installed, and an endless belt 16 is connected between a driving pulley 14 provided at the output shaft end of the motor with a speed reducer and a driven pulley 15 provided at the input shaft end of the upper running sprocket 10. It is constructed by spanning.

The slag basket 8 includes a basket body 17 and a gate-shaped hanging handle 18.
and a locking claw 19. The basket body 17 is formed into a square box shape by applying a perforated plate, a wire mesh, etc., and the lower end of a vertical member 18a of a portal-shaped hanger 18 that suspends and supports the central part is attached to the center part of the upper edge. It is fixed. Furthermore, the horizontal member 18 of the gate-shaped hanging hand 18
Locking pawls 19, 19 are provided at both ends of b to protrude diagonally downward.

Vertical member 1 of locking claws 19, 19 and gate-shaped hanger 18
8a is made comparable to the inclination angle _θ1 of the frames 3, 3 _, and the vertical member 18a is designed so that the outer edge 17a of the cage body 17 does not come into contact with the tip 6a of the raking rake 6. The length is set to maintain the play P of .

Next, the operation of this embodiment will be explained.

The slag basket 8 is assembled by lifting the horizontal member 18b of the gate-shaped hanger 18 by hand or by a lifting machine such as a hoist (not shown).
Hold it with the locking claw 1 at the upper end of the frame 3, 3.
The cage main body 17 is fixed at a position below the upper end portions of the screen bars 4, 4, . . .

When the motor 13 with a speed reducer is driven to rotate the traveling sprockets 10, 10, . . . , each endless chain 5, 5 travels in a clockwise direction in FIG. The scraping rakes 6, 6, which are run by the endless chains 5, 5, scrape up the slag captured on the surfaces of the screen bars 4, 4, and dump the slag from the upper ends of the screen bars 4, 4... into the slag basket. 8 into the inside of the cage body 17. At this time, there is no risk that the outer edge 17a of the cage body 17 will come into contact with the tip 6a even if the rake 6 meanders or sways due to running resistance or vibration.

After that, when the slag inside the slag basket 8 is filled to an appropriate amount, the horizontal member 18b of the gate-shaped hanging hand 18 is held manually or by a lifting machine, and the locking claws 19, 1 are held.
9 are extracted from the frames 3, 3 and transported to another collection site or the like.

(Effects of the invention) As described above, according to the invention, the slag basket is removably hooked to and suspended from the upper end of the frame of the dust remover, and the outer edge of the basket body is attached to the raking rake. Since the slag basket is formed to a length that maintains a clearance to prevent it from coming into contact with the tip of the slag basket, the proper fixed position of the slag basket can be reproduced at all times by simply transporting the slag basket, improving work efficiency. In addition, there is no need for construction work to install a slag cage on the waterway side, which significantly reduces equipment costs.Furthermore, flow resistance in the waterway is eliminated, simplifying the maintenance and management of the dust remover. It has excellent effects.

[Brief explanation of the drawing]

The drawings illustrate the embodiment of the book, and FIG. 1 is a side view of the dust remover, FIG. 2 is a plan view of the slag basket, FIG. 3 is a front view of the same as seen from the right side of FIG. 4 and 5 are schematic diagrams showing conventional examples of dust removers. 1...Dust remover, 2...Waterway, 3...Frame,
4...Screen bar, 5...Endless chain, 6
...Kakeage rake, 8... Slag basket, 17... Basket body, 18... Hanging hand.

Claims (1)

[Scope of utility model registration request] A plurality of screen bars are arranged in parallel at equal intervals between a pair of left and right frames that are tilted toward the downstream side of the waterway, and a pair of left and right endless chains that run along the back of the screen bars. The dust remover is equipped with a plurality of comb-like scraping rakes that are installed and protrude from the gaps between the screen bars to the surface side, and a slag basket is removably attached to the upper ends of both of the frames. 1. A dust remover, characterized in that the slag basket is suspended from the slag cage, and is provided with a hanging hand for suspending and supporting the slag cage at a position where the slag cage does not come into contact with the raking rake.