KR100851171B1 - An apparatus for filtering a cooling water with scales - Google Patents

Abstract

Provided is a cooling water filtering device for removing the scale contained in the cooling water supplied therein for cooling the conductive roll (CONDUCTOR ROLL) of the steel plate.

The cooling water filtering device 1 includes: a filter tank 10 through which the cooling water W including the scale S flows in and out; and installed inside the casing 32 provided inside the filter tank 10. Filter member 30 to remove the scale contained in the coolant; And, in close contact with the inner circumferential surface of the inside of the filter member 30 is installed so as to move up and down to enable backwashing of the filter member 30 Backwashing means (50) having a brush roll (52) to make; And a coolant inlet pipe 72 connected to the lower, side, and upper portions of the casing 32 in the filter tank, the filtered coolant discharge pipe 74, and a backwash water discharge pipe 76 having a backwashed scale. The piping part 70 is comprised.

Therefore, according to the present invention, it is possible to remove the scale attached to the filter member by a brush roll installed inside the filter tank to facilitate backwashing of the filter member, thereby effectively removing the scale contained in the cooling water. There is an excellent effect to increase the cooling efficiency of the lower conductive roll.

Plated steel sheet, plating cell, conductive roll, conductive roll coolant, coolant filtering device, backwashing device

Description

Coolant Filter System with Backwashable Scale {AN APPARATUS FOR FILTERING A COOLING WATER WITH SCALES}             

1 is a schematic diagram showing an internal roll scale generated in the cooling water for cooling a conventional conductive roll.

2 is a front configuration diagram showing a cooling water filtering apparatus including a scale capable of backwashing according to the present invention.

Figure 3 is a plan view showing a cooling water filtering device including the present inventors backwashable scale

Explanation of symbols on the main parts of the drawings

1 .... Coolant Filter 10 .... Filter Tank

30 ... filter element 32 ... casing

34 .... Support block 50 .... Backwash means

52 .... Brush roll 54 .... Drive motor

56 .... Screw Bar 58 .... Moving Block

60,66 .... Brackets 62a, 62c .... Racks and Pinions

62,64 .... 1st and 2nd rotation axis 62b, 64a .... Bevel gear                 

68 .... Sensor detection bar 70 .... Piping part

72 .... coolant inlet 74 .... filtered coolant outlet

76 .... Backwash water outlet 78 .... Pressure gauge

The present invention relates to a cooling water filtering device for removing the scale contained in the cooling water supplied therein for cooling the conductive roll (CONDUCTOR ROLL) of the steel sheet, more specifically, by a brush roll installed inside the filter tank Since the scale attached to the filter member can be removed, the backwashing of the filter member can be easily performed, so that the scale included in the coolant can be effectively removed, and the coolant including the scale capable of backwashing to increase the cooling efficiency of the conductive roll. It relates to a filtering device.

In general, in the manufacture of steel sheet, especially cold rolled steel sheet, the steel plate is subjected to electroplating of the steel sheet to increase the corrosion resistance of the steel sheet or to make the appearance beautiful, or to request the plating of a specific component on the surface of the steel sheet. Although the electroplating work is not shown in the drawing, the anode of the electrode and the electrolytic solution is installed in the plating cell filled with a band as a band-a conductive roll with an electrode is installed on the surface of the steel sheet conveyed through this The plating operation of the steel sheet is performed while the component, that is, the plating layer of a specific component such as zinc-nickel is attached.

On the other hand, Figure 1 shows a conductive roll used in such an electroplating operation, the inside of the conductive roll is installed so that the cooling water flows to cool the conductive roll, which is the temperature of the conductive roll during the electroplating operation rises In this case, the generated heat is different depending on the amount of current flowing into the conductive roll, and a certain amount of cooling water is introduced into the space inside the conductive roll to circulate for cooling the conductive roll.

That is, as shown in Fig. 1, the shaft ring 104 and the conductive roll in the conductive roll 100 of the rubber material provided with the terminal ring 108 is connected to the electrode band (102) in the center of the circumference Cooling water (W) supplied through the coolant pipe 120 installed through the interior of the 100 and the coolant passage 130 inside the conductive roll 100 flows in the direction of the arrow of FIG. 1 (inlet of the coolant pipe 120) The conductive roll 100 is cooled by being drawn into 122 and circulated while being discharged from the outlet 124.

However, in such a conventional conductive roll cooling water circulation structure, since a large amount of scale S is generated inside the conductive roll 100 and the cooling water pipe 120 during the cooling process of the conductive roll 100, When the circulation is blocked, the inlet 122 and the outlet 124 of the cooling water pipe 120 and eventually increase the internal pressure of the cooling water (W) circulated is to partially expand the rubber 106 of the conductive roll 100. .

Therefore, as shown in FIG. 1, an arc spot is generated by causing a poor contact between the band 102 of the conductive roll 100 and the steel sheet conveyed through the conductive roll, and the coolant circulation by the scale S is generated. When the terminal ring 108 is overheated due to badness, it provides the cause of equipment damage, and if the scale of the inside roll is incapable of cooling water circulation due to the generation of scale inside the conductive roll, the risk of safety accidents by dismantling and discharging the cooling water line, and equipment and environmental pollution occurs. There are many problems with product quality.

By the way, the conventional cooling water filtering device connected to the electroplating line of such a steel sheet is not shown in the drawings, but is merely a device for filtering the scale (S) as a filter, and thus the filter backwashing of the filter device is not performed, and thus periodically Since the filter must be replaced, the operation of the filter device is cumbersome, and the cooling water filter efficiency including the scale is reduced by that amount, which makes it difficult to effectively filter the scale contained in the cooling water for cooling the conductive roll.

The present invention has been made in order to improve the various problems as described above, the purpose of which is to effectively remove the scale contained in the cooling water circulated through the inside of the conductive roll during electroplating of the steel sheet, in particular to filter the capture of the scale It is to provide a coolant filtering device including a scale capable of easy backwashing of the filter member to facilitate the use of the filter device and to increase the filter efficiency by the backwashing itself.

As a technical configuration for achieving the above object, the present invention, in the filtering device of the cooling water including the scale to circulate the inside to cool the conductive roll for electroplating of steel sheet, the cooling water including the scale inlet and discharge Filter tank; Wow,

A filter member installed inside the casing installed inside the filter tank to remove the scale contained in the cooling water; Wow,

A back washing means provided with a brush roll which is installed to rise and fall while being in close contact with an inner circumferential surface of the filter member and enables back washing of the filter member; And,

Cooling water filtering including a backwashable scale configured as a pipe portion having a cooling water inlet pipe connected to the lower, side and upper portions of the casing in the filter tank, a filtered cooling water discharge pipe, and a backwash water discharge pipe having a backwashed scale. By providing a device.

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

2 is a front configuration diagram showing a coolant filtering apparatus including a scale capable of backwashing according to the present invention, and FIG. 3 is a plan view illustrating a coolant filtering apparatus including a scale capable of backwashing according to the present invention.

That is, as shown in Figures 2 and 3, the apparatus 1 of the present invention for circulating the inside of the conductive roll for the electroplating of the steel sheet to cool and filter the cooling water including the scale is largely filter tank ( 10) and the filter member 30, the back washing means 50, and the pipe portion 70, which is divided into these components 10, 30, 50, 70 as follows.

First, FIG. 2 and FIG. 3 show the filter tank 10 of the apparatus 1 of the present invention. In the filter tank 10 of the present invention, the coolant W including the scale S flows in and out. The filter tank 10 is configured to be discharged, as shown in FIG. 2, the upper filter tank 10a and the lower filter tank 10b are bolt-assembled in a flange shape, and the lower filter tank 10b has a cylindrical shape. It is formed.

At this time, although not shown in the fixing stand of the filter tank 10, the filter tank 10 is a separate fixing stand vertically adjacent to the electroplating steel sheet line, the cooling water pipe of the conductive roll 100 shown in FIG. It is connected to the outlet 124 of 120.

Next, FIGS. 2 and 3 show the filter member 30 of the coolant filtering device 1 including the scale capable of backwashing according to the present invention. The filter member 30 of the present invention is the filter tank. It is comprised so that the scale S (FIG. 1) contained in the cooling water W (FIG. 1) installed in the casing 32 provided in the inside of 10 may be removed.

At this time, as shown in Fig. 2 and 3, the casing 32 disposed inside the filter tank 10, that is, inside the lower filter tank 10b, the inner lower side of the filter tank 10. It consists of the bottom plate 32b fixed on the bracket 32a installed in the plurality, the cylindrical side wall 32c provided on the upper part, and the upper plate 32d fixed on the upper part. Although shown, the bottom plate 32b, the side wall 32c, and the top plate 32d of the casing 32 are closely connected and fixed as bolts to seal each other.

As shown in FIG. 2, the casing bottom plate 32b, the side wall 32c, and the top plate 32d have a cooling water inlet pipe 72 of the pipe portion 70 described below, and filtered. The first to third openings 32b ', 32c' and 32d ', to which the cooling water discharge pipe 74 and the backwash water discharge pipe 76 are connected, are integrally formed. Although not shown in the drawings, it should be closely connected to prevent the coolant from leaking through the sealing seal.

In addition, the filter member 30 is formed in an arc shape in which the fixing plate 30a integrally formed at both ends is bolted to both side surfaces of the support block 34 provided opposite to the side walls 32c of the casing 32. The filter member 30 is formed of an arc-shaped filter plate made of metal having a plurality of micropores.

At this time, although not shown in the figure, the upper and lower ends of the filter member 30 is closely adhered and fixed between the bottom plate 32b and the top plate 32d of the casing 32 by a packing or the like, and the scale flows in. Cooling water including is configured to be discharged only through the filter member (30).

Next, FIG. 2 and FIG. 3 show the backwashing means 50 of the coolant filtering device 1 including the scale capable of backwashing according to the present invention, and the backwashing means 50 of the present invention as described above. It is provided with a brush roll 52 which is installed to be raised and lowered while being in close contact with the inner circumferential surface of the filter member 30 to enable backwashing of the filter member 30.

2 and 3, the backwashing means 50 is described in detail. The backwashing means 50 includes a moving block 58, a first rotating shaft 62, and a second rotating shaft 64. Equipped with

That is, the moving block 58 of the backwashing means 50 is connected to the drive motor 54 installed on the upper plate 32d of the casing 32 and vertically disposed at the inner center of the casing 32. It is fastened to the screw bar 56, the first rotating shaft 62 is connected to the movable block 58 and the first bracket 60, the vertical rack gear installed in the support block 34 in the casing at the center Pinion gears 62c that engage the plate 62a are provided, and bevel gears 62b are provided on both sides of the first rotation shaft 62.

At this time, as shown in Figure 2, the strand bar 56 is supported to rotate as a bearing (B) installed on the upper plate (32a) of the casing 32, the lower end of the screw bar (56) Since the moving block 58 is fastened and the moving block 58 is fixed to the inner center of the filter member 30 by the first and second brackets 60 and 66, the screw bar ( 56 rotates without flow when the motor is driven.

In addition, as shown in FIGS. 2 and 3, the second rotation shaft 64 is provided with bevel gears 64a engaged with the bevel gear 62b of the first rotation shaft 62 on both sides. It is installed to rotate between the second bracket 66 connected to the first bracket 60, the second rotating shaft 64 is rotated as a bearing (B) provided on both ends of the second bracket (66).

Accordingly, the brush roll 52 of the backwashing means 50 is fixed to the second rotating shaft 64 of the backwashing means 50 as shown in FIGS. It is configured to move up and down while being in close contact with the inner circumferential surface of the filter member 30 during the driving, the roll portion 52b of the brush roll 52 is fixed to the second rotation shaft 64, the filter member on the circumferential surface Brushes 52b for cleaning the holes in 30 are provided.

As shown in FIG. 2, at one side of the second bracket 66, the sensors S1 and S2 disposed on the upper and lower portions of the casing 32 are operated to drive the driving motor 54. The control sensor bar 68 is installed to protrude upward and downward, the moment the sensor detection bar 68 is integrated with the bracket by the motor drive to detect the upper sensor (S2), the drive motor ( 54 is reversely rotated and descends again so that the motor is stopped when the sensor detection bar 68 detects and operates the lower sensor S1.

At this time, as shown in Figure 2, the upper and lower sensors (S1) (S2) is the bottom plate (32b) and the upper plate (32d) of the casing 32, which is not indicated by a separate sign in the drawings It is installed to detect the operation by the sensor detection bar 68 through the glass 68a is installed so that the internal coolant does not leak.

Next, FIG. 2 and FIG. 3 show the piping part 70 of the apparatus 1 of this invention, The piping part 70 of this invention is the bottom of the casing 32 in the said filter tank 10. As shown in FIG. It is equipped with a coolant inlet tube 72 connected to the plate 32b and the side wall 32c and the upper plate 32d, the filtered coolant discharge tube 74, and a backwash water discharge tube 76 having a backwashed scale. The coolant inlet 72 is connected to the outlet 124 of the coolant 120 in FIG. 1 to filter the coolant W including the scale S of the filter tank 10 of the apparatus 1 of the present invention. Installed to supply internally.

In addition, the coolant supply pipe 72, the filtered coolant discharge pipe 74, and the backwash water discharge pipe 76 are provided with electromagnetically operated valves 72a, 74a, 76a for controlling the flow of each fluid. The pressure gauge 78 detects a pressure increase in the casing when the scale of the filter member 30 is blocked in the cooling water supply pipe 72. The pressure gauge 78 opens and closes the filtered cooling water discharge pipe 74. As shown in FIG. 2, the valve 74a and the on / off valve 76a of the backwash water discharge pipe 76 are electrically connected to each other.

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

As shown in Figure 1, during filtration of the cooling water (W) for cooling the conductive roll 100 used during the electroplating of the steel sheet, the filtration of the scale (S) contained therein, of course, in particular, Cooled water filtering device 1 of the present invention, which is easy to backwash to remove the filtered scale S when it is accumulated on the filter member 30 of the filter device 1, is as follows. The operation of the apparatus 1 according to the present invention will be described based on this.

First, the cooling water inlet pipe of FIG. 1 is connected to the cooling water inlet pipe 72 connected to the bottom plate 32b of the casing 32 through the lower portion of the filter tank 10 of the piping unit 70 of the present invention filtering device 1. Cooling water (W) connected to the 124, including the scale (S) is introduced into the filter member 30 inside the casing 32 through the opening and closing valve (72a) of the inlet pipe (72).

At this time, the opening / closing valve 76a of the backwash water discharge pipe 76 connected to the upper plate 32d of the casing 32 is closed, and the filtered cooling water discharge pipe 74 connected to the side wall 32c of the casing 32 is closed. The on-off valve 74a is open. The filtered coolant discharge pipe 74 is connected to the inlet 122 of the coolant pipe 120 of FIG. 1 so that the filtered clean coolant W is supplied to the inside of the conductive roll. Will be.

Therefore, only the cooling water introduced through the holes of the filter member 30 disposed inside the casing 32 inside the filter tank 10 is discharged while being filtered, and the scale S is collected by the filter member 30. Will be.

Next, when the scale S is excessively accumulated in the filter member 30 inside the casing 32, since the cooling water W is not smoothly discharged through the filter member 30, As the internal pressure increases, the pressure gauge 78 installed in the lower coolant inflow pipe 72 senses a pressure higher than a set value, and closes the opening / closing valve 74a of the filtered coolant discharge pipe 74 that is electrically connected to the backwash water. The on-off valve 76a of the discharge pipe 76 is opened.

At the same time, when the drive motor 54 on the casing 32 is driven to rotate, the screw bar 56 rotates with the driving force, and the movable block 58 coupled thereto rises along the screw bar 56, and eventually As the first bracket 60 connected to the movable block 58 also rises, the pinion gear 62c of the first rotating shaft 62 installed on the first bracket 60 is disposed on the casing side wall 32c. It is engaged with the rack gear plate 62a of 34 so that the first rotating shaft 62 is rotated.

Therefore, the second rotating shaft 64 installed in the second bracket 66 connected to the first bracket 60 has a bevel gear 62b provided with the bevel gear 64a installed at the end thereof. The second rotary shaft 64 is integrally rotated when the first rotary shaft 62 is rotated, and the brush roll 52 provided on the second rotary shaft 64 is integrally rotated. When the moving block 58 is raised, the brush roll 52 rotates to remove the scale S caught in the holes of the filter member 30.

At this time, since the coolant is introduced through the coolant inlet tube 72, the vortex is generated when the brush roll 52 is raised and rotated so that the scale attached to the filter member 30 is more smoothly removed and the casing ( 32) discharged through the upper backwash water discharge pipe 76, the discharged backwash water is sent to the cooling water storage tank (not shown in the drawing), the concentration is clouded, and then circulated back to the filter device (1) through the piping pipe To be filtered.

On the other hand, the sensor detection bar 68 provided in the second bracket 66 is the second installed on the casing upper plate 32d side when the moving block 58 is raised to be adjacent to the upper plate 32d of the casing 32 The sensor S2 is operated through the glass 68a, and the driving motor 54 is electrically connected to the sensor through a control unit (not shown) so as to be interlocked with the sensor.

Therefore, the moving block 58 is lowered, the brush roll 52 is rotated in the reverse direction and the incoming coolant vortex again in the opposite direction while all the scales attached to the filter member 30 are separated from the filter member 30. While the backwashing of the filter member 30 is completely performed, the movable block 58 is adjacent to the casing bottom plate 32b side and the first side of the casing bottom plate 32b side by the sensor detection bar 68. The detection sensor S1 is operated to stop the operation of the drive motor 54.

Next, the on / off valve 76a of the backwash water discharge pipe 76 is closed, and the on / off valve 74a of the coolant cabbage pipe 74 filtered again is opened to pass through the backwashed filter member 30 and its filter efficiency. This higher cleaner cooling water is supplied to the conductive roll (100 in FIG. 1) through the discharge pipe 74.

Accordingly, the coolant containing the scale is filtered more cleanly through the filter device 1 which is backwashed on its own, and then is supplied to the conductive roll 100 so that the cooling efficiency of the conductive roll is also improved. It is to effectively prevent the plating failure of the steel sheet due to the partial expansion of 106.

As described above, according to the present invention, a cooling water filtering device including a scale capable of backwashing can effectively remove the scale included in the cooling water circulated through the inside of the conductive roll during electroplating of the steel sheet, and in particular, the filtering member for collecting and filtering the scale. It is easy to backwash, so it is convenient to use the filter device and provides the advantage that the filter efficiency can be improved by self backwashing.

Furthermore, since the scale contained in the cooling water circulated inside the conductive roll can be effectively removed, the partial expansion of the conductive roll by the scale is prevented, so that the adhesion between the band of the conductive roll and the steel sheet to be transferred is maintained and the electroplating of the steel sheet is also performed. There is an effect to perform smoothly.                     

Finally, the simple structure for backwashing the filtering device for cooling water containing scales facilitates the fabrication and installation of the device, thereby providing a practical and excellent effect useful for filtration of other sewage as well as cooling water in the pre-plating line. .

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 (6)

In the filtering device (1) of the cooling water including the scale and circulating the inside of the conductive roll for the electroplating of the steel sheet, A filter tank 10 into which the coolant W including the scale S flows in and out; Wow, A filter member (30) installed inside the casing (32) installed inside the filter tank (10) to remove the scale contained in the cooling water; Wow, A backwashing means (50) provided with a brush roll (52) which is installed to rise and fall while being in close contact with the inner circumferential surface of the filter member (30) to enable backwashing of the filter member (30); And, Piping section having a cooling water inlet pipe 72 connected to the lower, side and upper portions of the casing 32 in the filter tank, the filtered cooling water discharge pipe 74, and the backwash water discharge pipe 76 having a backwashed scale. Cooling water filtering device including a backwashable scale, characterized in that configured as; The casing 32 disposed inside the filter tank 10 is a bottom plate 32b fixed on a bracket 32a provided on the lower side of the filter tank 10, and an upper portion thereof. It consists of a cylindrical side wall (32c) and a top plate (32d) fixed to the top, the bottom plate and the side wall and the top plate of the casing is sealed and fixed, The casing bottom plate 32b, the side wall 32c, and the upper plate 32d have a coolant inlet tube 72, a filtered coolant discharge tube 74, and a backwash water discharge tube 76 of the pipe part 70. Cooling water filtering device, characterized in that the first one-third opening (32b ') (32c') (32d ') are connected to each other integrally formed The method of claim 1, wherein the filter member 30 is configured in an arc shape in which the fixing plate 30a integrally formed on both side surfaces of the support block 34 provided opposite to the side walls 32c of the casing 32 is bolted. Become, Cooling water filtering device, characterized in that the upper and lower ends 30a and 30b of the filter member 30 are tightly fixed between the bottom plate 32b and the top plate 32d of the casing 320. The screw bar according to claim 1, wherein the backwashing means (50) is connected to a drive motor (54) installed on the upper plate (32d) of the casing (32) and vertically disposed at the inner center of the casing (32). A moving block 58 fastened to 56; and, The pinion gear 62c connected to the movable block 58 and the first bracket 60 and engaged with the vertical rack gear plate 62a installed at the support block 34 inside the casing is installed at both centers. A first rotating shaft 62 provided with a bevel gear 62b; And, Bevel gears 64a meshing with the bevel gears of the first rotation shaft 62 are installed at both sides, and the second rotation shaft 64 is installed to rotate between the second brackets 66 connected to the first bracket 60. Cooling water filtering device including backwashable scale, characterized in that 5. The sensor sensing device of claim 4, wherein one side of the second bracket 66 controls the driving of the driving motor 54 by operating sensors S1 and S2 disposed on the upper and lower portions of the casing 32. The bar 68 is installed to protrude upward and downward, The sensor (S1) (S2) is a cooling water filtering device including a scale capable of backwashing, characterized in that the sealing is installed through the glass 68a installed in the casing (32) The method of claim 1, wherein the brush roll 52 of the back washing means 50 is fixed to the second rotary shaft 64 of the back washing means 50 of the filter member 30 when driving the motor 54 It is configured to move up and down while being in close contact with the inner circumferential surface, The coolant supply pipe 72, the filtered coolant discharge pipe 74 and the backwash water discharge pipe 76 are provided with electromagnetically actuated valves 72a, 74a, 76a for controlling the flow of each fluid, The coolant supply pipe 72 detects a pressure increase inside the casing when the scale of the filter member 30 is clogged and installs a pressure gauge 78 for electrically connecting the on / off valves 74a and 76b to each other. Coolant filtering unit with possible scale

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