JPS6122678Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a chopsticks residue cleaning device.

Sludge and other substances adhere to the residue that is scraped up from waterways by dust removers at sewage treatment plants. Therefore, when treating this sludge, it is first necessary to wash the sludge to remove sludge and the like. Therefore, a sludge cleaning device has been proposed in which the scum is stirred and washed with water in a washing tank. Because the amount of residue in the cleaning tank was not fixed, if the amount of residue was too large, sufficient cleaning could not be carried out, and if there was too little, it would end up wasting a lot of time. I had a problem with cleaning it.

In view of the above points, it is an object of the present invention to provide a residue cleaning device that can perform efficient and sufficient cleaning.

In order to achieve the above object, the present invention includes a cleaning tank equipped with an agitator inside, a hopper for introducing the residue into the cleaning tank, and a device that scrapes up the residue in the cleaning tank and discharges it to the outside. a pair of cylindrical rotors having a plurality of blade-like protrusions protruding from their outer peripheral surfaces and having annular bodies whose outer peripheral surfaces can come into contact with each other at both ends; Consisting of
One driven rotor is configured to move toward and away from the other driving rotor, and is equipped with a fixed quantity supply device that has means for urging the driven rotor toward the driving rotor. Not only can the sludge be supplied to the cleaning tank and the cleaning can be carried out with just the right amount, but also the sludge can be loosened by the blade-like protrusions that pass between the two rotors, each of which has a large number of protruding protrusions. Even if there is a large lump, it can be easily loosened because the driven rotor can be separated easily.Furthermore, if a large foreign object gets between the rotors, the driven rotor will be separated from the driving rotor, which will cause the rotor to become loose. This prevents damage and overloading the drive motor.

An embodiment of the present invention will be described below based on the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a cleaning tank having one or more agitators 2 therein, and a predetermined amount of water is stored in the cleaning tank 1. A hopper 3 (not shown in FIG. 1) is installed above the cleaning tank 1, and unwashed residue is supplied to the hopper 3 by a conveyor device (not shown) or the like. 4 is a dust remover that scrapes up the residue in the cleaning tank 1 and discharges it to the outside, and the dust remover 4 is arranged above the cleaning tank 1 near both ends in the depth direction of the cleaning tank 1. A pair of endless chains 7 stretched between a driving sprocket 5 rotated by a motor (not shown) and a driven sprocket 6 disposed at the bottom of the cleaning tank 1; It is composed of a large number of scraping plates 8 that are constructed over the entire area. The endless chain 7 rotates in the direction of arrow A (FIG. 2), so that the scraping plate 8 scrapes up the residue in the cleaning tank 1 and discharges it from the discharge port 9. This residue is conveyed to a predetermined location by a conveyor device 10 (FIG. 2). A metering supply device 11 is installed between the hopper 3 and the cleaning tank 1. i.e. 12,1
3 is a cylindrical rotor with a large number of blade-shaped protrusions 14 protruding from its outer peripheral surface, and these pair of rotors 12,
Annular bodies 15, 15, 16, 16 for transmitting rotational force, whose outer circumferential surfaces abut each other, are externally fitted and fixed to both ends of 13. One rotor 12 is rotatably supported at both ends of its shaft 19 by bearings 18, 18 fixed on frames 17, 17 installed on the cleaning tank 1. A sprocket 20 is externally fitted and fixed to one end. This sprocket 20 is rotated in the direction of arrow B (FIG. 2) by an electric motor 21 installed on the cleaning tank 1 via a sprocket 22 and a chain 23. Both ends of the shaft 24 of the other rotor 13 are
It is rotatably supported by bearings 25, 25 which are movable along the longitudinal direction on the mounts 17, 17, and these bearings 25, 25 are supported by the mounts 17, 17.
The rotor 12 is biased toward one rotor 12 by spring dampers 26, 26 fixed on the rotor 17. That is, the bearings 25, 25 are connected to rails or guide grooves (not shown) installed on the frames 17, 17.
It is slidably fitted. Further, as shown in FIG. 3, the spring damper 26 includes a box 27 fixed on the pedestal 17, and a pair of plates 28 and 29 slidably fitted into the box 27. , a spring 30 interposed between these plates 28 and 29, and a connection having one end fixed to the plate 28, passing through one side wall of the box 27, and the other end fixed to the bearing 25. A rod 31 , a screw shaft 32 having one end fixed to the plate body 29 and the other end projecting to the outside through the other side wall of the box body 27 ; By turning the adjusting nut 33, the urging force of the spring 30 can be adjusted, and the pressing force of the annular body 16 against the annular body 15 can be adjusted. . That is, the other rotor 13 moves in the direction of arrow C (second
The frictional force of the annular bodies 15 and 16 can be freely varied by turning the adjusting nut 33.

The operation will now be described. The screen residue discharged from the hopper 3 falls onto the rotors 12, 13 and is passed between the rotors 12, 13 by the blade-like projections 14, 14 of the rotors 12, 13 so that a constant amount is constantly and continuously supplied to the cleaning tank 1. A predetermined amount of the screen residue supplied to the cleaning tank 1 by the rotation of the rotors 12, 13 for a predetermined time is then agitated with water by the agitator 2 for a predetermined time, during which time sludge and the like are removed. The screen residue in the cleaning tank 1 is then scraped up by the dust collector 4 and discharged to the outside.

In this way, a predetermined amount of sludge can be supplied to the cleaning tank 1 by rotating the rotors 12 and 13 for a predetermined period of time, so that incomplete cleaning due to excessive sludge supply and stirring time caused by excessive sludge supply can be avoided. There is no waste, and the residue can be cleaned efficiently and thoroughly. Furthermore, by changing the rotational speed of the rotors 12 and 13 using the speed reduction mechanism of the electric motor 21, or by changing the pressing force by the spring damper 26 by turning the adjustment nut 33, the amount of slag supplied per unit time can be varied. Therefore, it can be used for cleaning various kinds of residue. Furthermore, if a large foreign object gets mixed in between the rotors 12 and 13, the other rotor 13 resists the biasing force of the spring 30 and escapes from one rotor 12, which may damage the rotors 12 and 13 or cause the electric motor to There is no risk of overloading 21.

FIG. 4 shows another embodiment, in which a scraper 34 may be provided for each rotor 12, 13. This scraper 34 has a mounting portion 3 screwed to the frames 17, 17 at both ends.
4a, and a comb-like main body portion 34b that protrudes slightly diagonally upward from one side edge of the mounting portion 34a toward the rotor 12 or 13.
When residue adheres to the blade-like protrusions 14 of 13, the residue is scraped off and dropped into the cleaning tank 1.

FIG. 5 shows yet another embodiment, in which a weight 35 may be used instead of the spring damper 26. That is, 36, 36 are the mounts 17,
It is a substantially L-shaped lever whose intermediate portion is fixed to both ends of a shaft 38 rotatably supported by support stands 37, 37 on the other rotor 13, and the bearing 25 of the other rotor 13,
25 is fixed to one end of the levers 36, 36. A receiving plate 39 is installed between the other ends of the levers 36, 36, and the weight 35 is fixed by a bolt 41 passing through a long hole 40 formed in the receiving plate 39. Therefore, by changing the mounting position and number of the weights 35 on the receiving plate 39, the annular bodies 15, 15 of the annular bodies 16, 16 can be
This allows the pressing force to be varied.

As explained above, according to the sludge cleaning device of the present invention, a predetermined amount of sludge can be supplied to the cleaning tank. Not only can it be loosened by the protrusions, but even if it is a large lump, the driven rotor can be moved apart, so it can be loosened easily.Furthermore, if a large foreign object gets between the rotors, the driven rotor can be easily loosened. Being separated from the drive rotor has the advantage of preventing damage to the rotor and overloading the drive motor. In addition, by making the force that urges the driven rotor convertible, the amount of sludge supplied can be easily varied.
It can be applied to cleaning various kinds of residue.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a plan view of a chopstick cleaning device, Fig. 2 is a front view thereof, Fig. 3 is a sectional view of a spring damper, and Fig. 4 is a quantitative determination in another embodiment. FIG. 5A is a plan view of the supply device, and FIG. 5A is a front view of a quantitative supply device in another embodiment, and FIG. 5B is a plan view of the same. 1...Cleaning tank, 2...Agitator, 3...Hopper, 4...Dust remover, 11...Quantitative supply device, 1
2, 13...rotor, 14...blade-like projection, 15,
16... Annular body, 26... Spring damper (biasing means), 35... Weight (biasing means).

Claims (1)

[Scope of utility model registration request] A cleaning tank equipped with an agitator inside, a hopper for charging the residue into the cleaning tank, and a dust remover for scraping up the residue in the cleaning tank and discharging it to the outside are provided, and the hopper and the cleaning tank It consists of a pair of cylindrical rotors with a large number of blade-like protrusions protruding from the outer circumferential surface and annular bodies at both ends whose outer circumferential surfaces can come into contact with each other.One driven rotor is connected to the other. In addition to being configured so that it can move toward and away from the drive side rotor,
A sludge cleaning device comprising a quantitative supply device having means for biasing a driven rotor against a driving rotor.