JP2999753B1 - Dust remover - Google Patents

Abstract

An object of the present invention is to provide a dust removing device in which water flow is not restricted even after dust is captured. SOLUTION: In a flowing water channel, a pair of chain links is provided between sprockets arranged vertically above and below the flowing water surface, and a bucket is fixed between the chain links.
A plurality of buckets are arranged in parallel in the traveling direction of the chain link, a dust removing device that removes dust in running water by a circulating screen, wherein the bucket includes a side plate fixed to each chain link. They are interconnected by at least two cross girders, and a net having a shape concave toward the outside of the chain link is stretched between the cross girders.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust removing device for removing dust in flowing water by a screen arranged so as to block a flowing water channel such as an industrial water intake channel of a power plant or the like.

[0002]

2. Description of the Related Art For example, in an industrial water intake channel in a power plant, wood chips, jellyfish, fish and shellfish, seaweed, paper, cloth, and vinyl dust are removed from cooling seawater, and contaminated water is condensed by these foreign substances. In order to prevent clogging of the capillary tube or the cooler capillary tube, a dust removing device is usually installed.

In this dust removing apparatus, as shown in FIG. 1, guide frames 2a and 2b are installed along both side walls of an intake channel 1, and sprockets 3a and 3b are arranged above and below each guide frame, respectively. Sprocket 3a
Between the chain links 4a and 4b between the chain links 4a and 4b.
A screen 5 having a net stretched over in a plane is fixed, and this screen 5 is arranged in parallel in the traveling direction of the chain link.
The screen is developed in a belt shape. Then, while the dust in the running water is captured by the screen mesh when the flowing water passes through the screen 5, the dust is captured by each screen 5 by circulating the screen 5 by driving the chain links 4 a and 4 b. Is conveyed upward, and dust is collected from the screen 5 in the tower 6 and discarded.

[0004]

In the conventional dust removing apparatus, the net for catching dust is a plane, and the water stream collides almost vertically with this plane. In other words, the dust catching area of the net is the projected vertical area of the flowing water. Therefore, if the net catches garbage, the portion of the net that passes through the running water will decrease, and the screen of the dust removal device will impede the passage of water. Will be imitated.

Therefore, an object of the present invention is to provide a dust remover in which water flow is not restricted even after dust is captured.

[0006]

That is, the present invention provides:
In the flowing water channel, a pair of chain links is provided between the sprockets arranged vertically above and below the flowing surface, and buckets are fixed between the chain links, and a large number of the buckets are arranged in parallel in the traveling direction of the chain links. A dust removing device configured to remove dust in running water by a circulating moving screen, wherein the bucket interconnects side plates fixed to each chain link with at least two horizontal connecting girders. A dust removing device characterized in that a net having a concave shape toward the outside of a chain link is stretched between horizontal connecting girders.

Here, a plurality of net holding members, which are curved in a U-shape with the opening facing the outside of the chain link, are provided at intervals in the longitudinal direction of the horizontal tether between the horizontal tethers. Is advantageous.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Now, a dust removing apparatus according to the present invention will be described in detail with reference to the drawings. This dust remover
As shown in FIG. 2, guide frames 2a and 2b are installed along both side walls of the intake channel 1, and sprockets 3a and 3b are arranged above and below each guide frame, respectively.
Chain links 4a and 4b, which are rotatably guided by the guide frames 2a and 2b, are bridged between the sprockets 3a and 3b, and a bucket 7 is fixed between the chain links 4a and 4b. Are arranged in parallel in the traveling direction of the chain link to form a belt-shaped screen. The basic structure is the same as that of the dust removing device shown in FIG. In the drawing, reference numeral 8 denotes a drive source for rotating the chain links 4a and 4b.

Here, as shown in FIGS. 3 to 5, the bucket 7 has side plates 8 fixed to the respective chain links 4a and 4b.
a and 8b are replaced by three cross-links 9a, 9b and 9
c and interconnected at c.
It is important to provide a structure in which a net 10 having a shape that is concave toward the outside of the chain links 4a and 4b is stretched therebetween.

That is, the horizontal connecting girders 9a, 9b and 9
c is fixed to the side plates 8a and 8b by attaching brackets formed at both ends thereof to the inner surfaces of the side plates 8a and 8b by bolts or welding. As shown in FIGS. 3 and 5, a metal or fiber net 10 formed into a semi-cylindrical shape having an axial length substantially equal to the length of the horizontal tether is provided between the horizontal tethers 9a and 9b. Connecting digit 9c
Are arranged so as to be detoured in a curved manner, and both end portions of the net 10 are connected to the horizontal connecting beams 9a and 9b, respectively, and the holding plates 11a and
11b by fixing via the horizontal bridge 9a
A net 10 is stretched between and 9b.

[0011]

In order to reinforce the net 10, as shown in FIGS. 6 and 7, it is curved in a U-shape between the cross-links 9a and 9b, with an opening facing the outside of the chain links 4a and 4b. It is preferable that a plurality of the holding members 12 are provided at intervals in the longitudinal direction of the horizontal connecting girder. The holding members 12 arranged at both ends of the horizontal connecting beams 9a and 9b include:
As shown in FIG. 8, providing the receiving plate 13 on the net 10 side
preferable.

[0013]

As described above, according to the dust removing apparatus of the present invention, the net of the bucket is made concave toward the outside so that the projected area of the net in the vertical section of the flowing water channel is not increased. Since the transmission area increases, it is possible to reduce the shielding of the flow path by dust when the dust is captured by the net. In addition, the bucket does not merely capture dust as a conventional screen, but also creates a space for accommodating the captured dust, thereby increasing the dust collection capacity of the bucket itself, and thus the capacity of the dust removal device. Can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a conventional dust removing device.

FIG. 2 is a side view showing the dust removing device of the present invention.

FIG. 3 is a perspective view showing a structure of a bucket of the dust removing device according to the present invention.

FIG. 4 is a plan view showing a structure of a bucket of the dust removing device according to the present invention.

FIG. 5 is a diagram showing a structure of a bucket of the dust removing device according to the present invention.

FIG. 6 is a perspective view showing a holding member for reinforcing a mesh of a bucket.

FIG. 7 is a view showing a holding member for reinforcing a mesh of a bucket.

FIG. 8 is a view showing a holding member for reinforcing a mesh of a bucket.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoichi Miki 2-3-3, Shinsuna, Koto-ku, Tokyo Inside Ishikawajima Shipbuilding Chemical Engineering Co., Ltd. (56) References JP-A-6-299528 (JP, A) Kaisho 57-197517 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02B 5/08 102 E02B 5/08 103

Claims (2)

(57) [Claims] 1. A pair of chain links extending between sprockets arranged vertically above and below a flowing water surface in a flowing water channel, and a bucket is fixed between the chain links.
A plurality of buckets are arranged in parallel in the traveling direction of the chain link, a dust removing device that removes dust in running water by a circulating screen, wherein the bucket includes a side plate fixed to each chain link. The ends of the net, which is concave toward the outside of the chain link, are fixed to the two cross-links connecting the upper and lower ends of the side plates with the presser plate. The dust removing device is characterized in that the net is stretched by bending one of the remaining horizontal connecting girders between the two horizontal connecting girders so as to bend around. 2. The U-shape according to claim 1, wherein the U-shape is formed between the horizontal connecting girders with the opening facing the outside of the chain link.
Attach the holding material of the net at intervals in the longitudinal direction of the horizontal
A dust removing device comprising a plurality of dust removing devices.