KR20040033119A - An apparatus for supplying a mixing tank with powderd activated carbon - Google Patents

Abstract

PURPOSE: Provided is an apparatus for feeding powdered activated carbon along with supply water to be distributed uniform into an agitation tank, thereby effectively eliminating taste and odor of water. CONSTITUTION: The apparatus comprises a hopper(30) with powdered activated carbon therein and a screw feeder(32) at a lower end portion thereof, which is installed at a side of an agitation tank; a supply water dilution unit(50) with an orifice structure, which is connected to a discharge hole(32a) of the screw feeder(32) at one end and to a supply water pipe by a flange; and a feeding unit(70) with a rotating distribution head(72) connected to the supply water pipe and located in an agitation tank for distributing a mixture of powdered activated carbon and supply water to the agitation tank.

Description

AN APPARATUS FOR SUPPLYING A MIXING TANK WITH POWDERD ACTIVATED CARBON}

The present invention removes intermittent odor (taste and odor) generated in the case of water quality abnormalities in raw water supplied to freshwater dams or other storage tanks of various water treatment facilities in industrial or steel mills, and chemical oxygen as an indicator of organic pollution. The present invention relates to a mixing tank input device of powdered activated carbon mixed with raw water in order to improve water quality by preventing a decrease in the required amount (COD). The present invention relates to a mixing tank injecting apparatus for activated pulverized coal, which is uniformly added to a mixing tank mixed with raw water, so as to improve the mixing property between activated pulverized coal and raw water in the mixing tank.

Generally, pure water used in various water treatment facilities of industrial or steel mills, or soft water used in a Hwaseong plant, which treats coke oven gas (COG) generated from a coke plant of a steel mill, is supplied from a dam or other storage tank. In order to meet the standard of chemical oxygen demand (COD), an indicator of organic pollution, while removing the odor (taste and odor) that occurs intermittently in the water quality of the raw water (pure or soft water) supplied to the same dam or reservoir. In order to improve the water quality of raw water, powdered activated carbon is introduced into a mixing tank mixed with the raw water, and FIG. 1 illustrates a conventional mixing tank of activated fine coal.

That is, as shown in Figure 1, when the powdered activated pulverized coal (C) is conventionally stored in the hopper 110 of the input device 100, the screw 112 therein is driven as a motor to drive the hopper ( 110) When the activated pulverized coal (C) is introduced into the skew feeder (120) side of the lower side, the activated pulverized coal (100) is stirred through an input check hole (130) installed at its end by the operation of the screw feeder (120). Within 140).

Next, in the high half tank 140, the activated pulverized coal 100 supplied with a predetermined level of supply water W1 as the level sensor 160 is supplied through the supply water pipe 150 to operate the stirrer 170. W1) and the activated pulverized coal (C) is diluted, and when introduced from the circulating tank 200 through the discharge pipe 190 through the pump 180, the mixed through the raw water supply pipe 210 connected to the mixing tank 200. The activated pulverized coal mixed water mixed with the circumference (W2) introduced into the tank 200 is sent to the water treatment facility through the discharge pipe 220, and the activated pulverized coal (C) mixed with such raw water is not shown in the drawing. The quality of the raw water is improved by eliminating the odor of chemical oxygen by meeting the standards of chemical oxygen demand, and the pulverized coal injected is later filtered through the filtration equipment in the water treatment plant.

However, in the conventional mixing pulverization tank injector 100 of the activated pulverized coal, as shown in FIG. 1, the activated pulverized coal is attached to the electrode of the level sensor 160 installed in the stirring tank 140. The conductivity is weakened, the malfunction of the relay contact occurs, the degree of dilution of the activated pulverized coal is not kept constant, and in particular, bubbles generated from the stirring tank 140 are attached to the input check hole 130 on the screw feeder 120 side, thereby preventing them. There was a problem of making the stirring tank itself of activated pulverized coal (C) difficult.

In addition, when such an input check opening 130 is blocked, a cumbersome work of forcibly opening it by using a separate jig, particularly in order to inject the activated pulverized coal (C) into the mixing tank, a separate stirring tank, agitator, pump It is necessary to increase the installation space, and the need for a separate agitating tank cleaning process for treating the activated pulverized coal (C) precipitated in the agitating tank 140, it is difficult to maintain and maintain the overall equipment.

As a result, it is difficult to smoothly add the activated pulverized coal (C) to the mixing tank, and the activated pulverized coal (C) diluted with the feed water in the cyclization tank 200 is shown in FIG. 1, and remains in the mixing tank 200. Since the time is short and discharged before being smoothly mixed with the raw water (W2), there was a number of problems such as the complete water odor removal in the mixing tank 200 is not made to reduce the water quality.

The present invention has been made in order to improve the various problems as described above, the object of the present invention is that the activated pulverized coal is completely diluted with the feed water and evenly injected into the mixing tank, the circumference of the mixed with the activated pulverized coal in the mixing tank In order to effectively remove odor and to meet the standard of chemical oxygen demand, it is to provide a mixing tank injector of activated pulverized coal to further improve the quality of raw water.

In addition, another object of the present invention is to improve the water quality of the raw water while eliminating the existing facilities such as agitation tank, and to simplify the structure of the facility, it is a mixed tank of activated pulverized coal to make the installation and maintenance of the device easier To provide an input device.

1 is a configuration diagram showing a mixing tank input structure of a conventional activated pulverized coal

Figure 2 is an overall configuration showing a mixing tank input device of activated pulverized coal according to the present invention

Figure 3 is a main configuration showing the supply line dilution means of the fine coal in the mixing tank input device of the activated pulverized coal of the present invention

Figure 4 is a main part showing the mixing tank input means in the mixing tank input device of the present invention activated pulverized coal

Figure 5 is a structural diagram showing the flange configuration of the input means in the mixing tank injector of the activated pulverized coal

Figure 6 is a perspective view of the main part showing the active pulverized coal dilution water injection head of the input means in the mixing tank input device of the activated pulverized coal

Explanation of symbols on the main parts of the drawings

1 .... mixing tank of activated pulverized coal 10 .... mixing tank

12 .... raw water 30 .... activated pulverized coal storage hopper

32 .... screw feeder 32a .... outlet

50 .... Means for diluting the feed water of activated pulverized coal

54,56 .... Orifice type inner tube part 70 .... Feeding means

72 .... Injection head 74,80 .... 1st and 2nd cover

76 .... bearing 78 .... rotating tube

f, pipe connection flange

In the mixed pulverized tank mixing apparatus of activated pulverized coal to remove the odor and to improve the water quality by meeting the standard of chemical oxygen demand, the activated pulverized coal is placed in one side of the mixed tank into which raw water is introduced, A storage hopper installed at a lower portion of the screw feeder; Wow,

A feed water dilution means connected to the screw feeder outlet of the storage hopper, the feed water pipe being supplied with a feed water for diluting activated pulverized coal in a flange shape, and having an orifice structure; And,

It is connected to the inside of the mixing tank at the end of the feed water pipe active activated pulverized coal mixing tank input means having a rotary spray head for evenly feeding the feed water dilution pulverized coal into the raw water in the mixing tank; By

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is an overall configuration diagram showing a mixing tank input device of activated pulverized coal according to the present invention, Figure 3 is a main configuration diagram showing a supply line dilution means of the pulverized coal in the mixing tank input device of activated pulverized coal, Figure 4 Fig. 5 is a structural diagram showing a mixing tank input means in a mixing tank input device of activated pulverized coal, and FIG. 5 is a structural diagram showing a flange configuration of the input means in a mixing tank input device of activated pulverized coal, and FIG. Fig. 1 is a perspective view of the main portion showing the active pulverized coal dilution water jet head of the charging means in the apparatus.

In FIG. 2, the overall configuration of the mixed pulverized tank mixing device 1 of the activated pulverized coal of the present invention is shown. The mixed pulverized tank input device 1 of the activated pulverized coal of the present invention is largely divided into The feed water dilution means 50 and the activated pulverized coal blending tank input means 70, which can be divided into these components 30, 50, 70 as follows.

First, the activated pulverized coal mixing apparatus 1 of the present invention removes odors, for example, while improving water quality such as pure water or soft water used in a chemical conversion process for treating coke oven gas (COG) in an iron mill. It is a device for improving the water quality by putting the activated pulverized coal 20 into the mixing tank 10 and smoothly mixed with raw water, that is, pure water, soft water (or purified water).

Next, FIG. 2 shows the storage hopper 30 of the apparatus 1 of the present invention. The storage hopper 30 of the present invention has one side of the mixing tank 10 into which the raw water 12 is introduced. The activated pulverized coal 20 is disposed in the storage hopper 30, and the activated pulverized coal 20 is described below in the lower portion of the storage hopper 30. The screw feeder 32 which discharges to the 50 side is arrange | positioned.

At this time, the storage hopper 30 of the present invention is provided with a screw 30a for smoothly discharging to the lower screw feeder side of the stored activated pulverized coal (20) is connected to the shaft and the drive motor (30b) on the upper side of the hopper.

Next, FIG. 2 and FIG. 3 show the feed water dilution means 50 of the activated pulverized coal of the mixed pulverization tank input device 1 of the present invention. 50 is connected to the screw feeder 32 outlet 32a of the storage hopper 30, the feed water pipe 40 is supplied with a feed water 42 for diluting the activated pulverized coal (20) flanged (f) It consists of an orifice structure connected by).

That is, as shown in Figure 3, the dilution means 50 is composed of the pipe portion 52 and the first and second orifice type inner tube portions 54, 56, the pipe portion 52 is the feed water The supply water pipe 40a for supplying the 42 and the discharge pipe 40b for moving the feed water 42 in which the activated pulverized coal 20 is diluted to the mixing tank 10 side are provided in the front and rear sides in the flange form f. Is connected to the center of the pipe portion 52 of the present invention, the outlet port 32a of the screw feeder 32 and the connector 52a connected in the flange form (f) is integrally formed.

Next, the connector 52a is provided with a cover plate 58 which prevents the backwater from flowing back. The cover plate 58 is schematically illustrated in the drawing, but the activated pulverized coal 20 is discharged through the upper outlet 32a. When it is not injected, it is preferable to install the connector 52a to seal the portion of the connector 52a with an elastic force such as a coil spring, and the activated pulverized coal 20 injected into the pipe portion 52 by pushing the cover plate 58 with its own weight. Is committed.

On the other hand, the first and second orifice type inner tube (54, 56) is coupled to the front and rear of the connector (52a) to the inside of the tube body 52, the feed water 42 and the activated pulverized coal (20) The first orifice type inner tube portion 54 is provided with a feed water through hole 54a whose inner diameter gradually decreases in the longitudinal direction thereof, and the second orifice type inner portion 54 is increased. The pipe part 56 is provided with the feed-water limestone activated pulverized coal passage hole 56a by which the internal diameter gradually expands in the longitudinal direction.

At this time, as shown in FIG. 3, the first and second orifice inner tube portions 54 and 56 have screw portions 54b and 56b integrally formed on the outer circumferential surface thereof, respectively, to be fastened and assembled in the tube portion 52, respectively. In one embodiment, it may be possible to integrally process the pipe part 52, or it may be possible to assemble the bolts from the outside after inserting the respective inner pipe parts 54 and 56.

Therefore, as shown in FIG. 3, the feed water 42 is primarily passed through the feed hole 54a of the first orifice inner tube portion 54 through the feed water pipe 40a and gradually decreases through the feed hole 54a. The injected fine pulverized coal 20 is injected into the secondary orifice inner tube part in a state where it is completely diluted in the dilution space S formed between the first and second orifice type inner tube parts 54 and 56. 56) is smoothly supplied to the supply water discharge pipe 40b side, which is to solve the problem that the conventional activated pulverized coal (20) is not diluted smoothly with the supply water, a separate stirring tank should be used.

Next, Fig. 2, Fig. 4 to Fig. 6 shows a mixing tank input means 70 of the feed water diluted activated pulverized coal 20 'of the mixing tank input device 1 of the activated pulverized coal of the present invention. The feeding means 70 of the present invention is connected to the inner side of the mixing tank 10 at the end of the supply water pipe 40b to evenly supply the raw water 12 to the raw water 12 in the mixing tank 10. It is equipped with the rotary jet head 72 which throws in.

That is, as shown in Figures 4 to 6, the inlet means 70, the first cover portion 74 and the first cover portion (170) connected to the end of the supply water pipe 40 in the form of a flange ( 74 is connected to the inside, and includes a second cover part 80 in which the rotary tube 78 is rotatably inserted through a bearing 76.

At this time, as shown in Figure 4 and 5, the elbow pipe 40c is connected to the end of the supply water discharge pipe (40b), the elbow pipe (40c) to the first cover portion 74 and the flange form (f) is connected to the connecting pipe (40d) is connected, the rotary tube 78 is also connected to the center end (72c) of the injection head 72 in the flange form (f).

The first and second cover parts 74 and 80 are bolted to each other, and a fixing ring 82 for supporting the bearing 76 is assembled in the form of a screw in the first cover part 74. A bushing 88 for rotating the rotary tube 78 is interposed between the rotary tube 78 to the inside of the first cover portion 74, and an O-ring 86 is installed to prevent leakage. At the same time, the O-ring 84 is also inserted into the bolting connection of the first and second cover parts 74 and 80.

At this time, the reason why the rotary tube 78 is required, the injection head 72 is connected to the rotary tube 78 in the form of a flange, the injection head 72 to each other based on the rotary tube 78 A plurality of first and second injection nozzles 72a and 72b are installed in the opposite direction, so that the activated pulverized coal is diluted through the nozzles 72a and 72b of the injection head 72, as shown in FIG. This is because when the diluted feed water 20 'is injected, the rotational force is received by the forces injected in the opposite directions, and this is because the raw water 12 in the mixing tank 10 is smoothly mixed with the pulverized coal 20'. Since the spray width is formed evenly over the entire mixing tank 10, the mixing tank residence time is increased to increase the mixing properties.

Referring to the operation of the present invention made in the above configuration in detail as follows.

As shown in FIGS. 2 to 6, when the activated pulverized coal 20 is supplied to the screw feeder 32 through the storage hopper 30, the activated pulverized coal 20 is discharged through the outlet 32a. The cover plate 58 is introduced into the dilution space S in the pipe portion 52 of the c).

Therefore, the feed water 40 passing through the through hole 54a of the first orifice type inner pipe part 54 into the pipe part 52 of the dilution means 50 through the feed water pipe 40a gradually decreases in its inner diameter. The feed water is rapidly injected into the dilution space (S) by the passing hole (54a) to lose, and thus the supply water 42 and the activated pulverized coal 20 having such a spraying power are smoothly diluted, and thus the inside of the pipe portion 52 is removed. 2 The orifice inner tube portion 56 is gradually moved through the through-hole (56a) that the inner diameter is increased while the flow rate is reduced through the discharge pipe (40b) is moved to the mixing tank 10 side.

Next, the rotary tube 78 connected to rotate as a bearing inside the first cover portion 74 and the second cover portion 80 of the inlet means 70 of the present invention provided at the end of the feed water discharge pipe 40b. The activated pulverized coal 20 'diluted in the feed water 42 supplied through the first and second nozzles 72a and 72b in opposite directions of the injection head 72 connected to the rotary tube 78 is provided. Sprayed from the raw water 12 in the mixing tank 10, and eventually the injection head 72 is rotated integrally with the rotary tube 78, the diluted activated pulverized coal (20 ') is supplied to the whole raw water 12 Evenly distributed spraying.

Accordingly, the activated pulverized coal 20 'is mixed evenly with the raw water 12 to effectively remove the odor of the raw water, and the COD, which is the chemical oxygen demand of the raw water, is also adjusted to the reference value so that the raw water, that is, pure water, soft water or purified water It is to further improve the water quality.

Accordingly, the use of the activated pulverized coal mixing tank 1 of the present invention improves the water quality of raw water and extends the operation rate and its life of each process equipment using the same, and in particular, the installation of the equipment is unnecessary because the existing stirring tank is not required. And cost savings due to maintenance.

As described above, according to the present invention, the mixed pulverized tank mixing device of the activated pulverized coal is sprayed into the mixed tank while the activated pulverized coal is completely diluted with the feed water, thereby effectively removing the odor of the circumference mixed with the activated pulverized coal in the mixed tank. It provides the advantage of further improving the quality of raw water by meeting the standard of demand.

In addition, by removing the existing facilities such as agitator tank and simplifying the structure of the water to achieve the water quality of the raw water, there is an effect of making the installation and maintenance of the device easier.

Finally, the quality of raw water is improved by the smooth injection and mixing of activated pulverized coal, and the quality of pure water and soft water used in the chemical conversion process of steel mills is improved while the water purification efficiency is also improved, and other raw water such as cooling water is used. It is to provide an excellent effect of improving the service life and operation rate of the equipment.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (4)

In the mixing pulverization tank injector 1 of activated pulverized coal, which removes odors and improves the water quality by meeting the standard of chemical oxygen demand (COD), Raw hopper 12 is placed on one side of the mixing tank 10 is introduced and the activated pulverized coal 20 is introduced therein, the lower portion of the storage hopper 30 is provided with a screw feeder 32; And, The feed water pipe 40 is connected to the screw feeder 32 outlet 32a of the storage hopper 30 and to which the feed water 42 for diluting the activated pulverized coal 20 is connected in the form of a flange and has an orifice structure. Supply dilution means (50) of the activated pulverized coal; And, The rotary spray head 72 is connected to the inside of the mixing tank 10 to the end of the supply water pipe 40 to evenly feed the feed water fine coal 20 'to the raw water 12 in the mixing tank 10. Activated pulverized coal mixing tank input device equipped with; According to claim 1, The dilution means 50, The water supply pipe 40 is connected to the front and rear in the form of a flange, the center is connected to the outlet 32a of the screw feeder 32 in the form of a flange A pipe portion 52 in which 52a is integrally formed; and First and second orifice inner tube portions 54 coupled to the front and rear sides of the connector 52a to the inside of the tube body 52 to increase the dilution between the feed water 42 and the activated pulverized coal 20 ( 56); mixing apparatus of activated pulverized coal, characterized in that configured as 3. The first orifice inner tube portion 54 is provided with a feed water passage hole 54a, the inner diameter of which is gradually decreased in the longitudinal direction thereof. The second orifice type inner tube portion 56 is provided with a feed water dilution pulverized coal passing hole 56a whose inner diameter is gradually enlarged in the longitudinal direction thereof, so that dilution of the feed water 42 and the activated pulverized coal 20 is achieved. Configured to increase, Between the first and second orifice type inner tube parts 54 and 56, a dilution space S is formed in the direction immediately below the tube body connector 52a. According to claim 1, wherein the input means 70, The first cover portion 74 is connected to the end of the supply water pipe 40 in the form of a flange; And a second cover part 80 connected to the first cover part 74 and in which a rotary tube 78 is rotatably inserted through a bearing 76. The injection head 72 is connected to the rotary tube 78 in the form of a flange, the injection head 72 has a plurality of first and second injection nozzles in the opposite direction to each other with the rotary tube 78 ( 72a) and 72b are installed so that the injection head 72 is rotated in the mixing tank raw water 12, and is configured to spray the activated fine coal (20 ') diluted feed water, characterized in that the mixing tank input device of activated pulverized coal