KR101591511B1 - Apparatus for filtering dust using multi disc - Google Patents

Abstract

The present invention relates to a wet dust removing apparatus using a multi-stage rotation type dispersion disk, which does not cause clogging by moisture contained in coal dust when coal dust is removed, and uses water which is friendly to water contained in coal dust The objective is to efficiently remove and remove coal dust.
A wet dust removing apparatus using a multi-stage rotation type dispersion disk according to the present invention includes: a hollow purification tower (10); A water spraying means 20 for spraying water into the purging tower through nozzles 21 installed at multiple stages in the purging tower; A multistage rotatable dispersion disk assembly (30) installed inside the purification tower for dispersing water sprayed by the water spraying unit to adsorb and remove coal dust flowing into the purification tower; A water remover (50) for removing moisture of the purified air discharged from the purification tower; Water circulation means for supplying the water collected in the purifying column to the water jetting means so as to be reused; And a coal dust collector for discharging coal dust collected in the coal dust storage portion to the outside of the coal dust storage portion. The purifying column (10) has a coal dust purifying portion (11) A coal dust storage unit 12, a block-shaped machine room 16 interposed between the coal dust cleaner and the coal dust storage unit, a coal dust inflow unit 13 formed at the bottom of the coal dust cleaner unit, An exhaust pipe 15 for purifying air formed at the ceiling portion of the coal dust purifying portion, and upper and lower portions inside the machine room to communicate with the coal dust purifying portion and the coal dust storing portion, and the coal dust to the coal dust storing portion 12, , And the water jetting means (20) is installed on the upper part of the dispersion disk formed in the multi-stage rotation type dispersion disk assembly, A plurality of supply pipes 22 for supplying water to the plurality of nozzles 21; valves 23 for opening and closing the plurality of supply pipes 22; A manifold (24) connected to a supply pipe of the manifold to distribute water to the plurality of supply pipes, a circulation pipe for supplying water to the manifold after the coal dust is removed through the filter net (17) (26), and a pump (25) installed in the circulation pipe for pumping water stored in the coal dust storage unit to the circulation pipe, wherein the multi-stage rotation type dispersion disk assembly (30) A rotary shaft (32) arranged to be vertically vertically arranged inside the coal dust purifier and rotated by receiving a rotary force from the rotary motor, a rotary shaft (32) rotating around the rotary shaft, To the height And a dispersion disk (31) for dispersing the water sprayed from the nozzle in a small size while filling the interior of the coal dust purifier with water. Thus, after flowing from the bottom of the coal dust purifier, The coal dust rising toward the exhaust pipe disposed at the ceiling portion of the purifying portion is absorbed by the water dispersed and broken by the dispersion disk and is guided to fall into the coal dust storage portion 12 through the coal dust guiding portion 14, The coal dust stored in the dust storage unit is filtered to supply water to the nozzle.

Description

[0001] APPARATUS FOR FILTERING DUST USING MULTI DISC [0002]

The present invention relates to a dust removing apparatus for purifying foreign substances such as dusts and odors generated in a coal-fired power plant, and more particularly, to a dust removing apparatus for removing coal dust which does not cause clogging by moisture contained in coal dust, And more particularly, to a wet dust removing apparatus using a multi-stage rotary disk capable of efficiently removing and adsorbing coal dust using water contained in water.

In a coal-handling plant such as a thermal power plant, coal is transported using a conveyor, etc., and a plurality of conveyors are chained and used depending on the transportation path of the coal, the length of the conveyor, etc. At this time, So that the coal conveyed along the upstream conveyor falls on the downstream conveyor.

Coal contains dust of very small particle size, which is scattered into the atmosphere during the transportation of the coal, and is particularly severely scattered into the atmosphere by the impact energy generated when it falls on the downstream conveyor.

Since the dusts cause respiratory disturbance of the human body and include carcinogenic substances, equipment for removing dust from coal-fired power plants, for example, is applied to the coal handling plant.

BACKGROUND ART [0002] A dust collecting apparatus (bag filter) is mainly used as a conventional dust removing apparatus applied to a thermal power plant.

The filtration and dust collecting apparatus removes dust by using a porous filter net to remove dry dust with a predetermined particle size or more. However, since coal dust contains a large amount of water, clogging of the filter net occurs , Which leads to an increase in the power consumption. To solve this problem, the filter network needs to be cleaned or replaced from time to time.

Patent No. 10-1057978 Patent No. 10-1187926

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for efficiently removing coal dust by using water which is friendly to water contained in coal dust, Which is capable of being adsorbed and removed by a multi-stage rotation type dispersion disk.

A wet dust removing apparatus using a multi-stage rotation type dispersion disk according to the present invention is provided with an inlet for coal dust and a discharge port for purifying air, and a dust collecting part and a coal dust storage part and; Water spraying means for spraying water into the purging tower through nozzles installed at multiple stages in the purging tower; A rotating shaft which is arranged in the longitudinal direction inside the purging tower and rotated by a motor; a plurality of water discharge nozzles which are installed at the bottom of the nozzle on the rotating shaft and dispersed in the water sprayed from the multi- A multi-stage rotatable dispersion disk assembly including a multi-stage dispersion disk for adsorbing and removing dust introduced into the purification tower; And a water eliminator for removing moisture of the purified air discharged from the purification tower.

According to the wet dust removing apparatus using the multi-stage rotation type dispersion disk according to the present invention, the coal dust can be prevented from being adhered to and removed from water (water) without being removed by the filter of the hole, Since water (moisture) dispersed by the dispersion disk is friendly to the moisture contained in the coal dust, the adsorption rate of the coal dust is very high, so the removal rate of the coal dust can be increased and thus, the pollution by the coal dust is prevented And a good working environment is provided, so that the health of the worker can be promoted.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a wet dust removing apparatus using a multi-stage rotation type dispersion disk according to the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wet dust removing apparatus using a multi-stage rotation type dispersion disk.

As shown in FIG. 1, the wet dust removing apparatus using the multi-stage rotation type dispersion disk according to the present invention includes a purification tower 10 providing a space for dust removal and recovery; Water spraying means (20) for spraying (spraying) water into the purifying column (10); And a multistage rotatable dispersion disk assembly (30) for dispersing water sprayed by the water spraying means (20) and adsorbing and removing dust that flows into the purification tower (10) by water.

The purification tower 10 is a tubular structure having a coal dust purifying section 11 and a coal dust storage section 12. The coal dust purifying part 11 and the coal dust storing part 12 may be structured through diaphragms, respectively, or may be constructed so as to be capable of collecting coal dust after being manufactured separately.

The coal dust purifying section 11 of the purifying column 10 is provided with a coal dust inflow section 13 into which coal dust flows together with air, a coal dust guide section 14 which guides the coal dust to the coal dust storage section 12, And an exhaust pipe 15 through which purified air is discharged.

A multistage rotary disk assembly 30 is installed in the purifier tower 10 and a block type machine room 16 can be applied between the coal dust purifier 11 and the coal dust storage 12 for this purpose. have. That is, the coal dust purifying part 11 and the coal dust storing part 12 are respectively stacked in the upper and lower parts of the machine room 16 while being in a cylindrical structure, and the coal dust guiding part 14 is provided in the machine room 16, And is configured to communicate with the dust purifying unit 11 and the coal dust storage unit 12, respectively.

The coal dust inflow portion 13 is connected to the bottom of the coal dust purifier 11 and the exhaust pipe 15 is connected to the ceiling portion of the coal dust purifier 11 to increase the dust retention time and increase the dust removal rate .

The coal dust inflow portion 13 is connected to the place where the coal dust is generated and the pipe, and the coal dust is introduced into the coal dust by a blower or the like.

The coal dust storage unit 12 stores the coal dust (water content) falling down from the coal dust purifying unit 11 and stores the water in the circulation pipe 20 of the water spraying unit 20 so as to be reused by the water spraying unit 20. [ (26). The circulation pipe (26) is provided with a filtering net (17) for filtering coal dust so that only coal is supplied without supplying coal dust. In order to recover the coal dust stored in the coal dust storage unit 12, a coal dust collector such as a coal dust recovery screw 40 may be applied. The coal dust recovery screw 40 is rotated by a motor or the like to recover dust in the coal dust storage unit 12 and discharge it to the outside.

A flocculant may be added for efficient removal of dust collected in the coal dust storage part 12. [ The coagulant is widely used in the field of water treatment. The amount of the flocculant to be used is appropriately adjusted depending on the amount of dust and the like.

The purified air from which coal dust has been removed is exhausted through the exhaust pipe (15). At this time, the purified air contains water. Such water may be in a contaminated state and adsorbed on the wall surface of the exhaust pipe 15 to reduce the ventilation area of the exhaust pipe 15. Therefore, in order to solve this problem, the water eliminator 50 is installed do. The moisture eliminator 50 may be, for example, a dryer that generates heat by supplying power to evaporate moisture, and at least one exhaust pipe 15 is provided.

The water injection means 20 includes a multi-stage nozzle 21, a supply pipe 22 for supplying water to the nozzle 21, a valve 23 for opening and closing the supply pipe 22, A manifold 24 for distributing and supplying the water, and a tank 25 for supplying water to the manifold 24 and a pump 25.

In the present invention, the water injection means (20) constitutes a circulation pipe (26) so that the water used in the removal of coal dust can be reused. The openings of both sides of the circulation pipe 26 are connected to the manifold 24 and the coal dust storage unit 12 and the pump 25 is installed in the circulation pipe 26 to store the coal dust Circulates the water stored in the portion (12) to the manifold (24).

The multi-stage nozzles 21 are installed on the upper portion of the multi-stage dispersion disk 31 of the multi-stage rotary dispersion disk assembly 30 so as to correspond to one-to-one correspondence (height reference). As shown in FIG. 2, it is also possible that a plurality of nozzles 21 are installed on the upper surface of the dispersion disk 31 at regular intervals along the circumferential direction. That is, a plurality of nozzles 21 may be installed on the dispersion disk 31 by providing a plurality of nozzles 21 on the ring-shaped distribution pipe 27.

The multistage rotary disk assembly 30 includes a dispersion disk 31 disposed in multiple stages in the purifier column 10 in correspondence with the height of the nozzles 21, A rotary shaft 32 for connecting and rotating the dispersion disks 31, and a rotary motor 33 for providing a rotary force to the rotary shaft 32.

The dispersion disk 31 disperses the water sprayed from the nozzles 21 in a small size to fill the inside of the purification tower 10 with water, thereby increasing the adsorption efficiency of the coal dust and removing it.

Each of the multi-stage dispersion disks 31 may be fixed to the rotary shaft 32, or a plurality of the distributed disks 31 may be fixed to the rotary shaft 32 through a single cylindrical case.

The multi-stage dispersion disc 31 may be of the same size as the whole, or may be gradually enlarged or narrowed from the inlet 13 to the outlet 15 using multi-stage characteristics, It is also possible to adjust the removal amount.

The dispersion disk 31 may be formed in the form of an acid inclined downwardly to the periphery with the rotation axis 32 as a center so as to more effectively disperse the water toward the path of the coal dust.

Coal dust may remain on the dispersion disk 31 during the removal process of the coal dust and if the coal dust is accumulated on the dispersion disk 31, the dispersion of the water will be difficult and the removal rate of the dust will be low, . ≪ / RTI > The washing of the dispersion disk 31 may be performed by spraying water through the nozzle 21 in a state where the inflow of coal dust is blocked.

The operation of the wet dust removing apparatus using the multi-stage rotation type dispersion disk according to the present invention is as follows.

The coal dust flows into the purifying column 10 through the inlet 13 and flows toward the exhaust pipe 15 at the top.

The multi-stage nozzle 21 of the water jetting means 20 ejects water onto the dispersion disk 31, and the water is sprayed onto the dispersion disk 31 The dispersing disk 31 disperses the water sprayed by the nozzle 21 widely in a small size while rotating through the rotating shaft 32 and thus disperses the water dispersed by the dispersing disk 31 in the purifying tower 10 Is filled.

Water dispersed by the dispersion disk 31 adsorbs coal dust, and water and coal dust are adsorbed to each other because of the presence of moisture in the coal dust, so that the coal dust is naturally adsorbed in the water inside the purifying column 10.

As the dispersion disk 31 is installed in multiple stages, the coal dust is adsorbed and removed in multiple stages.

The coal dust adsorbed by the water drops by gravity and is stored in the coal dust storage unit 12 at the bottom. The coal dust storage unit 12 is divided into coal dust and water. The coal dust is deposited on the bottom of the coal dust storage unit 12 and discharged to the outside through the coal dust recovery screw 40. The water is discharged to the water spraying unit 20 ) To be reused.

On the other hand, the purified air from which coal dust has been removed from the purifier tower 10 is exhausted through the exhaust pipe 15. At this time, the moisture of the purified air exhausted along the exhaust pipe 15 is removed by the water eliminator 50, and the purified purified air in the dry state is exhausted in the atmosphere.

10: purification column, 11: coal dust purification unit
12: a coal dust storage unit, 13: an inlet
14: Coal dust guide section, 15: Exhaust pipe
17: filter net, 20: water jetting means
21: nozzle, 22: water supply pipe
23: valve, 24: manifold
25: pump, 26: circulation pipe
30: Multistage rotatable dispersion disk assembly,
31: dispersion disk, 31: rotary shaft
33: Rotary motor, 40: Coal dust recovery screw
50: Moisture eliminator,

Claims (3)

A hollow purification tower 10;
A water spraying means 20 for spraying water into the purging tower through nozzles 21 installed at multiple stages in the purging tower;
A multistage rotatable dispersion disk assembly (30) installed inside the purification tower for dispersing water sprayed by the water spraying unit to adsorb and remove coal dust flowing into the purification tower;
A water remover (50) for removing moisture of the purified air discharged from the purification tower;
Water circulation means for supplying the water collected in the purifying column to the water jetting means so as to be reused;
And a coal dust collector for discharging the coal dust collected in the purification tower to the outside of the purification tower,
The purification tower 10 includes a coal dust purification unit 11, a coal dust storage unit 12, and a block type mechanical chamber (not shown) interposed between the coal dust purification unit and the coal dust storage unit, 16), a coal dust inflow part (13) formed at the bottom side of the coal dust purifying part and into which coal dust flows, an exhaust pipe (15) of purified air formed in the ceiling part of the coal dust purifying part, And a coal dust guide part (14) formed to communicate with the dust purifier part and the coal dust storage part and to guide the coal dust to the coal dust storage part (12)
The water jetting means 20 includes a multi-stage nozzle 21 disposed above the dispersion disk formed in the multi-stage rotary dispersion disk assembly and jetting water to the lower dispersion disk, A valve 23 for opening and closing the plurality of supply pipes 22, a manifold 24 connected to the plurality of supply pipes for distributing and supplying water to the plurality of supply pipes, A circulation pipe 26 for storing the coal dust stored in the coal dust storage unit and then supplying water to the manifold through which the coal dust is removed through the filter network 17, a circulation pipe 26 installed in the circulation pipe, And a pump (25) for pumping the refrigerant to the circulation pipe,
The multi-stage rotation type dispersion disk assembly (30) includes a rotation motor (33) installed on the outside of the purifier, a rotation motor (33) arranged in the vertical direction in the inside of the coal dust purifier, (32), and a dispersion disk (31) installed at a periphery of the rotation shaft at multiple stages in accordance with the height of the nozzle (21) to disperse the water sprayed from the nozzles in a small size to fill the inside of the coal dust purifier Whereby the coal dust rising toward the exhaust pipe arranged at the ceiling portion of the coal dust purifying portion after being introduced from the bottom portion of the coal dust purifying portion is broken by the dispersion disk and adsorbed on the water to be dispersed, The coal dust stored in the coal dust storage unit is filtered through the dust guide storage unit (14) A wet dust removing apparatus using a multi-stage rotary distribution disc, characterized in that to be supplied to the nozzle.

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