JPH02172509A - Device for separating and discharging dust - Google Patents

Abstract

PURPOSE:To make the dimension of a dust collector compact and further to enable dust collection in great quantities by screening dust in raw water by means of a side plate and a bar-rack. CONSTITUTION:A bucket 12 provided with a rake having a nearly U-shaped cross section is composed of a rectangular bottom plate 14 and two rectangular side plates 15, 16, wherein end plates 13 are secured respectively to the opposite ends, in the longitudinal direction, of the bucket and a plurality of upright rakes 17 are provided at regular intervals on the front end of the bottom plate 14. And, in a bar-rack 11, wherein a plurality of parallel bars being disposed in an arcuate manner, whose front and rear ends are respectively secured to the upper ends of the front ad rear walls of a separation tank 5, the intermediate part thereof extends along the turning-round locus around foot sprockets 3 of buckets 12 so that the forward ends of the rakes 17 of buckets 12 are inserted between adjacent bars. Further, a first treatment water outlet 9 and a second treatment water outlet 10 are provided on the sides of the separation tank 5 respectively, while the outlets 9 and 10 are open to the inside and outside of the bar-rack 11 respectively. As a result, a large quantity of dust can be removed.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a garbage separation and discharge device.

[Conventional technology]

Thermal power plants, nuclear power plants, etc. use large amounts of seawater as cooling water, so when taking water, jellyfish,
In order to remove garbage, seaweed, etc. (hereinafter referred to as "dust"), various types of removal O8 such as traveling screens are used! is traditionally used. Washing wastewater containing the above-mentioned dust is discharged from these dust removers, and a bar screen shown in the side view of FIG. 6, for example, is used to separate and remove the dust from this washing wastewater. The bar screen consists of a carrier chain 1 made of an endless chain that is passed around a foot sprocket 3 installed in the water tank and a head sprocket 2 installed above the water surface, and equipped with rakes installed in parallel at equal intervals on the carrier chain 1. When the bucket 012 is moving upward, a rake scrapes the garbage caught on the parallel bar and stores it in the bucket, and the garbage is discharged by dropping into the trough using the reversal of the bucket by the blade sprocket.

[Problem to be solved by the invention]

However, in order to remove a large amount of dust with such a device, a relatively long bar screen must be installed, and it is difficult to transport the dust discharged into the trough for incineration or landfill disposal. , it is necessary to separately install a conveyor, which increases the cost.

The present invention has been proposed in view of the above circumstances, and an object of the present invention is to provide a compact garbage separation and transport device that is inexpensive and has a large dust removal capacity.

[Means for Solving the Problems] To this end, the present invention provides an endless chain that runs around a foot sprocket that is pivotally supported in a separation tank into which raw water is introduced, and a head sprocket that is arranged above the separation tank. , Multiple buckets are installed in parallel on the same endless chain, and the garbage in the raw water is scooped up by the bucket by the circular movement of the same endless chain, and when the bucket is reversed by the RAD sprocket, the garbage in the bucket is transferred to the hopper via the chute. The garbage separating and discharging device is designed to fall inwards, and consists of a rectangular bottom plate and two rectangular side plates, each with an end plate fixed to each end in the longitudinal direction, and a plurality of rakes arranged at equal intervals on the front edge of the bottom plate. a rake-equipped bucket having a substantially U-shaped cross section and having a protruding section, the front and rear ends of which are respectively fixed to the upper ends of the front and rear walls of the separation tank, and the intermediate portions of which extend along the reversal locus of the bucket around the foot sprocket and are adjacent to each other. A plurality of parallel arc-shaped bar racks in which both ends of the rake of the bucket move mutually between the bars, and a first treated water disposed on the side wall of the separation tank and opening to the inside and outside of the bar rack, respectively. It is characterized by comprising a discharge port and a second treated water discharge port.

[For production]

According to such a configuration, when a part of the washing water flowing into the separation tank from the raw water inlet flows through the bucket, the dust is screened by the side plate, and the water from which the dust has been separated is sent to the first discharge port. At the same time, when the remaining washing water flows through the bar rack, the dust is caught on the bar rack, and the water from which the dust has been separated is discharged from the second discharge port.

When the bucket is rotated by the foot sprocket, the dirt collected by the combing of the bar rack by the rake falls from the bucket which is reversed by the spatula sprocket, passes through the chute, and accumulates in the hopper, so it is deposited at the bottom of the hopper. The waste is easily transferred to a transport vehicle that arrives at the site and transported to the processing plant.

〔Example〕

One embodiment of the present invention will be explained with reference to the drawings. Fig. 1 is an overall side view thereof, Fig. 2 is a horizontal sectional view taken along the line ■■ in Fig. 1, and Figs. 3 and 4 are respectively the same as those shown in Fig. 1. Il[-I,
FIG. 5 is a front view taken along IV-■, and FIG. 5 is a partial perspective view showing the bucket of FIG. 1.

In the above figure, the same numbers as in Fig. 6 indicate the same members as in the same figure, and 1 is a comparatively large-diameter helad sprocket 2.
and a relatively small diameter foot sprocket 3, a carrier chain consisting of a pair of left and right endless chains, 6 is an arcuate chain guide disposed at the lower end of the U-turn along the head sprocket 2 of the carrier chain l, Reference numeral 7 denotes an inclined chute whose upper end extends toward the center of the chain guide 6 and whose lower end extends above the upper end opening of a hopper 8 disposed at an appropriate height of the separation tank floor;
9. 10 is a first treated water outlet and a second treated water outlet that open at the center and bottom of the side wall of the separation tank 5, respectively; 11 has its front and rear ends fixed to the upper ends of the front and rear walls of the separation tank 5, respectively, and is 20 m from each other;
A plurality of arc-shaped bar racks 12 are arranged in parallel at equal intervals, and the left and right ends are closed by trilateral end plates 13 and 13, and a horizontally long rectangular bottom plate 14 and a side plate 15 are provided.
．． It is a horizontally elongated bucket having a U-shaped cross section, and each of the suid plates 15 and 16 is made of a horizontally elongated rectangular perforated plate, and at the front end of the bottom plate 14, a plurality of rakes 17 are arranged parallel to each other in a comb shape at equal intervals of 20+001. protruding from the
The tip of each rake 17 extends slightly through the gap between adjacent bars of the bar rack 11.

Seal plates 18 are respectively attached between the left and right side walls of the separation tank 5 and the left and right ends of the bar rack 11, and are opposed to the end brakes 13 and 13 of the bucket 12 with a gap of 201.

In such a structure, a part of the washing water containing a large amount of dust flows through the bucket 12 from the raw water inlet 4, as shown by the arrow in FIG. 1, and is then discharged from the first treated water outlet 9, and the remainder After passing through the bar rack 11, the water is discharged from the first treated water outlet lO.

At this time, the dust that has entered the bucket 12 is screened by the perforated plates forming the side plates 15 and 16 and accumulates inside the bucket, and the dust caught on the inner surface of the bar rack 11 is scraped off by the comb of the rake 17 of the bucket. and accumulates in the bucket. Here, the seal plate 1B functions to prevent raw water from directly flowing out through the first treated water outlet 10 without flowing through the side plate 16.

As the carrier chain cyclically moves, the dust accumulated in the bucket is reversed at the head sprocket and moved slightly forward along the chain guide 6, so that the bottom plate 14 becomes almost vertical, so that the dust is transferred to the chute 7. The liquid falls upward, flows down along this line, enters the hopper 8, and is stored in a direct-elevating transport vehicle that is below the lower end of the hopper.
Transported to a processing plant.

The empty bucket floods the separation tank as the carrier chain moves downward, and the dust in the raw water is separated again in the same way. You can use anything that can be dehydrated.

〔Effect of the invention〕

According to such an invention, the following effects can be achieved, so the present invention is extremely useful industrially.

(1) Since the dust in the raw water is screened by the side plate of the bucket and also by the bar rack, the size of the dust remover can be made compact and a large amount of dust can be removed.

(2) Since the bucket performs the function of separating the garbage and also transports the garbage and stores it in the hopper, the separated garbage can be transferred to the transport vehicle without additionally installing a conveyor.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a side view showing one embodiment of the present invention, and Fig. 2 is a side view showing an embodiment of the present invention.
Figures 3 and 4 are horizontal cross-sectional views along lines I[-II and 4, respectively, and front views along lines T1 and It/-III/ in Figure 1. Figure 5 shows the bucket in Figure 1. Partial perspective view shown, No. 6
The figure is a side view showing a known bar screen. 1; Carrier chain, 2; Head sprocket, 3
; Foot sprocket, 4; Raw water inlet, 5; Separation tank,
6; Chain guide, 7; Chute, 8; Hopper 9
; 1st treated water outlet, lo; 2nd treated water outlet, +1. Bar rack, 12: Bucket, 13; End plate, 14
; Bottom plate, 15.16: Side plate, ! 7
; rake, 18. seal plate. Fig. 4 Inqtf Karimamane Teiguchi Fig. 5 // f Fig. Fig.

Claims (1)

[Claims] An endless chain is run around a foot sprocket that is pivotally supported in a separation tank into which raw water is introduced, and a head sprocket that is placed above the separation tank, and multiple buckets are installed in parallel on the same endless chain. The garbage separating and discharging device uses a bucket to scoop up garbage in raw water through the circular movement of the endless chain, and when the bucket is reversed by the head sprocket, the garbage in the bucket falls through a chute and into a hopper. A rake-equipped bucket consisting of a bottom plate and two rectangular side plates, with end plates fixed to each end in the longitudinal direction, and a plurality of rakes protruding from the front edge of the bottom plate at equal intervals, and having a substantially U-shaped cross section. , the front and rear ends are each fixed on the upper ends of the front and rear walls of the separation tank, the middle part extends along the reversal locus around the foot sprocket of the bucket, and the front end of the rake of the bucket moves in tandem between adjacent bars. a plurality of parallel arc-shaped bar racks, and a first treated water outlet and a second treated water outlet that are respectively disposed on the side wall of the separation tank and open to the inside and outside of the bar rack, respectively. Features: Dust separation and removal equipment.