JPS6274804A - Vertical conveyor type dust removal equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) This invention is a method for damming and continuously carrying out foreign matter flowing with running water in reservoirs, waterways of sewage treatment plants, rivers, etc. This relates to a conveyor-type dust removal device used for.

(Prior Art) Conventionally, the above-mentioned dust removal device has been constructed using, for example, an endless chain connecting a driving sprocket provided at the upper end of the device and a driven sprocket provided at the lower end of the device. At the same time, the chain is equipped with an appropriate number of conveying devices such as rakes, and the lower end of the device is submerged in water, and the chain is rotated by the driving sprocket. There is a device in which the above-mentioned rake is used to scoop up the waste and carry it outside.

(Problem to be Solved by the Invention) However, in the above-mentioned dust removing device, the chain may stretch over a long period of time due to the load of the dirt being scooped up and the chain's own weight, and naturally Since the degree of elongation increases as the size of the chain increases as it is installed in a larger location, there is a problem in that the slack in the chain may cause the chain itself to malfunction, and the chain may come off the sprocket. In addition, with conventional dust removal equipment, foreign matter tends to get entangled between the chain and the driven sprocket installed at the bottom of the equipment, causing the chain to come off or malfunction, and causing problems as the chain elongates as described above. It had become.

The present invention has been made by focusing on such problems, and an object of the present invention is to provide a conveyor-type dust removal device that can cope with the problems caused by the elongation of the chain and can operate smoothly over a long period of time. It is an object.

[Structure of the Invention] (Means for Solving the Problems) A conveyor-type dust removal device according to the present invention is a device that dams up foreign matter flowing with running water with a screen and continuously carries it out. A sprocket connected to the drive means is provided on the upper end side, and a sprocket connected to the drive means is provided on the lower end side of the device.
By providing a guide roller that is movable up and down, connecting an endless chain with a plurality of rakes to the sprocket and the guide roller, and adding a pressing blade to the guide roller, The guide roller descends,
It is characterized in that the chain is arranged so as to be in a tensioned state.

(Example) The present invention will be explained below based on the drawings.

FIGS. 1 to 3 are diagrams illustrating an embodiment of the present invention.

That is, as shown in FIGS. 1 and 2, the dust removal device 1 is installed in an inclined state with its lower end shifted toward the upstream side (left side in FIG. 1) so as to block the water channel 2. 2
A storage chamber 4 is provided on the upper surface of the foundation 3 provided above. Sprockets 6 rotatably supported by drive shafts 5 perpendicular to the water flow direction (direction of arrow A in FIG. At the lower end of the device, guide rollers 8 supported by roller shafts 7 substantially parallel to the drive shaft 5 are provided on the left and right sides, so that the corresponding sprockets 6 and guide rollers 8 on the upper and lower sides can rotate simultaneously. Both are connected by an endless roller chain 9.

The drive shaft 5 has a movable holding mechanism 1 which is a combination of gears, etc.
A pulley 11 is pivotally attached to one end of the pulley 11, and a belt connects this pulley 11 and a pulley 14 of a motor 13 as a driving means installed on a frame 12 outside the storage chamber. It is connected by 15.

゛The guide roller 8 is as shown in FIG.

A device having flanges 8a and 8b at both ends is also effective, and is movable up and down along the inclination direction of the device.In installation, a rectangular frame 16 fixed to the side wall of the waterway 2 and the A slide body 18 is slidably attached to a guide rod 17 whose upper and lower ends are fixed approximately in the center of the frame 16, and the aforementioned roller shaft 7 is fixed to this slide body 18, and a bush 19 is attached to the roller shaft 7. It is mounted so that it can rotate freely. Note that the guide roller 8 is
For example, when a left and right pair is provided, the inner flange 8b (on the right side in FIG. 3) is formed short to prevent interference between this flange 8b and a rake to be described later. The guide rod 17 includes the upper side of the frame 16 and the slide body 18.
The coil spring 20 is installed in a compressed state between the upper surface of the holder and the upper surface of the holder. Furthermore, a pair of sprockets 6.
6 was provided on the single-piece drive shaft 5.

The guide rollers 8 are supported by respective roller shafts 7,
A detection rod 22 extending from a detection device 21 provided in the storage chamber 4 for detecting the amount of chain elongation is attached to the tip of each roller shaft 7 via a ring 23.

Further, the dust removal device 1 is equipped with a screen 24 on the back side (downstream side) consisting of a large number of patterned grids extending from the inside of the storage chamber 4 to the bottom of the water channel 2, A plurality of rakes 25 each having a comb-shaped tip that engages with the gap between the screens 24 are installed in a state in which they are hooked and are spaced apart at a predetermined interval. Further, on the back side of the storage chamber 4, there is formed a dumping port 4a that opens downward from the upper end of the screen 24, and below the dumping port 4a, there is a horizontal belt conveyor. 6 is installed.

In addition, the reference numerals 27 and 27 in FIG. 1 are chain guide rails that are fixed to the frame or partition wall provided between each device or the side wall of the water channel 2 and guide the intermediate portion of the roller chain 2, and 28 is the chain guide rail that guides the intermediate portion of the roller chain 2. This is a rake guide rail that engages the end of the rake 25 on the front side of the dust removal device 1 to suppress the lateral movement of the rake 25 when the roller chain 72 rotates.

A plurality of dust removal devices 1 having the above structure may be installed in parallel as shown in FIG. 2 depending on the cap etc. of the waterway 2. It is always in a state of tension due to the downward repulsive force caused by the force. Then, the operation of the motor 13 and -
By rotating the drive shaft 5 via the belt 15, the roller chain 2 is rotated in the direction in which the rake 25 moves up along the screen 24 on the back side of the dust removal device 1, and the waterway dammed by the screen 24 is removed. The impurities in the container 2 are conveyed by being scraped up by the rake 25. Further, the foreign matter scraped up by the rake 25 is swept away from the dumping port 4a onto the belt conveyor 26 in the storage chamber 4 by, for example, a wiper or the like pushed by the moving rake 25.

Furthermore, in this dust removal device 1, even when the roller chain 79 is extended, the guide roller 8 can move downward with the extension, so that the same tension state is maintained, and the amount of extension is reduced. When the size becomes significantly large, the movable holding mechanism 10 that holds the drive shaft 5 pulls up the sprocket 6, guide roller 8, and roller chain 9 as a whole. Such an operation can be performed manually each time by detecting the amount of expansion using a signal obtained by the detection device 21, or can be automatically pulled up when a certain amount of expansion has been achieved. Furthermore, the dust removal device 1
Because the guide rollers 8 held by the respective roller shafts 7 are used at the lower ends that are submerged in water, foreign objects are not entangled between the guide rollers 8 and the roller chain 9 compared to the case where sprockets are used. Even if the left and right roller chains 9,9 have different extension amounts, the postures of the respective guide rollers 8,8 can be maintained, and the roller chains 9.
There is no need to worry about rotation failure due to extension of the shaft 9 or entanglement of foreign matter.

Note that the mechanism for holding the guide rollers in a vertically movable manner, the number of sprockets and guide rollers per device, the type of chain, etc. are not limited to the above embodiments. A grid-like screen may be provided and the structure may be such that foreign matter is scraped up from the back side of the screen. In this way, the chain, guide rollers, etc. can be more reliably protected from foreign matter.

[Effects of the Invention] As explained above, the molded conveyor type dust removal device of the present invention is a device that dams up foreign matter flowing with running water with a screen and continuously carries it out. A sprocket connected to a driving means is provided on the upper end side, a guide roller is provided on the lower end side of the device so as to be movable up and down, and the chain is continuous with the sprocket and the guide roller in an endless manner and is provided with a plurality of rakes. Multiply, and
By adding a push-down blade to the guide roller,
The guide roller is lowered to maintain the tension of the chain, and it is also possible to always prevent foreign matter from becoming entangled in the rotating part of the chain and from coming off the chain due to such entanglement, ensuring smooth operation over a long period of time. It can be performed.

[Brief explanation of drawings]

FIG. 1 is a side sectional view illustrating a dust removal device according to an embodiment of the present invention, FIG. 2 is a front view illustrating two dust removal devices shown in FIG. 1 installed side by side, and FIG. FIG. 3 is a cross-sectional view illustrating the mounting portion of the guide roller. DESCRIPTION OF SYMBOLS 1... Dust removal device, 6... Sprocket, 8... Guide roller, 9... Roller chain, 13... Motor, 24... Screen, 25... Rake.

Claims (1)

[Claims] (1) A device that dams up foreign matter flowing with running water with a screen and continuously carries it out. A sprocket connected to a driving means is provided at the upper end of the device, and a guide roller is installed at the lower end of the device. is provided to be movable up and down, an endless chain with a plurality of rakes is connected to the sprocket and the guide roller, and a pressing blade is provided to the guide roller, so that the guide roller can be moved freely up and down. 1. A conveyor-type dust removal device, characterized in that the device is arranged so that the chain is in a tensioned state when the chain is lowered.