KR100467710B1 - Squeezing vacuum roll apparatus - Google Patents

Abstract

The present invention temporarily stores the water dehydrated from the outer circumferential surface of the squashing roll by the dewatering roller in the inside of the squashing roll, and forms the inside of the squashing roll in a vacuum to strongly store the water stored outside the squashing roll. The present invention provides a squatting vacuum roll device that allows the water to be completely removed from the surface of the final product while the outer peripheral surface of the vacuum roll is sufficiently dried by discharging.

The squashing vacuum roll device according to the present invention is provided with a porous roller cell having a space portion formed therein and having a plurality of holes perforated on the outer circumferential surface, a tube having an absorbent shape and absorbing water, and being provided in the space portion of the roller cell. A water reservoir configured to receive and temporarily store the water, and a roller unit comprising a plurality of vacuum rolls provided to be in contact with each other and separated from each other, and a dewatering roller provided to be in contact with and separated from the vacuum roll; Located in the lower portion of the roller portion, and communicating with the space portion and the water reservoir in the vacuum roll, by forming the space in a vacuum state vacuum unit for sucking the water in the space portion and the water reservoir; It consists of.

Description

Squeezing vacuum roll device {SQUEEZING VACUUM ROLL APPARATUS}

The present invention relates to a vacuum roll device for squeezing, and more particularly, to a squaring vacuum roll device that is a final facility for absorbing and removing water remaining on a product surface after rinsing a product in a steelmaking facility and a papermaking facility. It is about.

1A and 1B are a plan view and a front view, respectively, of a conventional squashing roll device. In general, since the squashing roll 2 is coated with a rubber or urethane on the surface of the roll, as shown in FIGS. 1A and 1B, the front and rear surfaces of the product 3 are the upper squaring rolls. Contact of (1a) and lower squashing roll 1b prevents water from being transferred to the rear end. However, the right and left side surfaces of the product 3 are not squashed due to the thickness of the product 3, and the water is spread inward from the edge of the product by the rotation of the squalling rolls 1a and 1b. In the case of a product, water may remain in the product, causing rust. The symbol A represents an unsqueezed portion of the product (3).

In order to prevent this, in the prior art, three to four squashing rolls were required, and there was a problem in that water was not completely removed according to the thickness of the product and the rotational speed of the squaring rolls 1a and 1b. Reference numeral 2a denotes another upper squashing roll located at the rear end of the upper squashing roll 1a.

In addition, the vacuum roll disclosed in the previously disclosed International Patent Publication No. 96-704115 generates a vacuum by the rotational force, which is not applicable to steel mills with a low rotational speed, and the porous cell is applied because it forms a mark on the product. This was impossible.

The present invention is to solve the above problems, an object of the present invention is to temporarily store the water dehydrated from the outer circumferential surface of the squashing roll by the dewatering roller in the inside of the squashing roll, It is to provide a squashing vacuum roll device that is formed in a vacuum to strongly discharge the stored water to the outside of the squashing roll to completely remove the water on the surface of the final product in a state that the outer peripheral surface of the vacuum roll is sufficiently dried.

1A is a plan view showing a conventional squashing roll device.

1B is a front view showing a conventional squashing roll device.

Figure 2 is a schematic cross-sectional view of the squashing vacuum roll apparatus according to the present invention.

3 is an exploded perspective view of a squashing vacuum roll according to the present invention.

Figure 4 is a perspective view showing a roller portion of the squashing vacuum roll apparatus according to the present invention.

* Description of the symbols for the main parts of the drawings *

10a, 10b..vacuum roll 11.roller cell 12.tube

13. First cover 13a. Notch section Second cover

15. 1st roll shaft 15a. Hollow part 16. 2nd roll shaft

20. Water reservoir 21. First shaft 21a.

22. Second shaft 30. Bearing block 41. Vacuum generator

42. Vacuum pump 43. Injector 44. Circulation piping

47..Drainage pipe 50..Dewatering roller

The squashing vacuum roll device according to the present invention for achieving the above object is a porous roller cell having a space portion formed therein and a plurality of holes perforated on the outer circumferential surface, the tube having a water absorption and surrounding the outer peripheral surface of the roller cell, roller cell A roller unit comprising a water reservoir provided in the space part to temporarily receive water, and a plurality of vacuum rolls provided to abut / separate each other, and a dewatering roller provided to abut / separate the vacuum roll; Located in the lower portion of the roller portion, and communicating with the space portion and the water reservoir in the vacuum roll, by forming the space in a vacuum state vacuum unit for sucking the water in the space portion and the water reservoir; It consists of.

One end of the water reservoir is coupled to the first shaft having a hollow portion communicating with the interior of the water reservoir, the other end is coupled to the solid second shaft, the bearing between the outer peripheral surface of the first and second shaft and the inner peripheral surface of the roller cell By being provided, the water reservoir is supported in the space of the roller cell.

One end of the vacuum roll is coupled to the first cover facing the first shaft, and the other end is coupled to the second cover facing the second shaft, and the outer surfaces of the first and second covers are rotatable, respectively. A first roll shaft and a second roll shaft for supporting are protruded, and a hollow portion communicating with the inside of the water reservoir is formed through the hollow portion of the first shaft.

The vacuum equipment unit is located at the lower part of the roller unit and stores a vacuum generator for storing the water discharged from the roller unit, a vacuum pump whose suction end is connected to the lower end of the vacuum generator, and is connected to the outlet end of the vacuum pump and directed water toward the vacuum generator. It consists of an injector that sprays.

The discharge end of the vacuum pump is connected to the upper portion of the injector through the circulation pipe, the hollow portion of the first roll shaft is in communication with the side of the injector through the drain pipe.

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

Figure 2 is a schematic cross-sectional view of the squashing vacuum roll apparatus according to the present invention, Figure 3 is an exploded perspective view of a vacuum roll according to the present invention.

As shown in these, the squashing vacuum roll apparatus according to the present invention comprises a roller portion 10 for absorbing and collecting the water of the product, and a vacuum equipment portion 40 for removing the water collected by the roller portion 10. It is.

Both ends of the vacuum roll 10a provided in the roller part 10 are opened, and a space part 11a is formed therein, and a porous roller cell in which a plurality of holes 11b are drilled in the circumferential direction on the outer circumferential surface thereof. (11) and a tube (12) made of a nonwoven fabric having excellent absorbency and surrounding the outer circumferential surface of the roller cell (11).

The inner space portion 11a of the roller cell 11 is provided with a water container 20 having a substantially semi-cylindrical shape in which one side is opened to temporarily receive water. One end of the water reservoir 20 is coupled to the first shaft 21 in which the hollow portion 21a is formed, which communicates with the inside of the water reservoir 20, and the other end of the water reservoir 20 is solid. The second shaft 22 is coupled. The first and second shafts 21 and 22 are coaxial with the axis X of the vacuum roll 10a, and the outer circumferential surfaces of the first and second shafts 21 and 22 and the roller cells 11 Since the bearing 23 for supporting the water reservoir 20 is interposed between the inner circumferential surfaces, the open side of the water reservoir 20 can always face upward even when the vacuum roll 10a is rotated. On the other hand, the hollow first shaft 21 is formed to protrude in a conical shape toward the outside of the vacuum roll (10a).

Open ends of the vacuum roll 10a are provided with a first cover 13 and a second cover 14 covering them. Among them, the inner surface of the first cover 13 facing the first shaft 21 of the water reservoir 20 is a notched portion 13a having a “V” shape corresponding to the conical portion of the first shaft 21. Is formed.

A first roll shaft 15 protrudes from an outer side surface of the first cover 13, and the hollow portion is coaxially with the axis X of the vacuum roll 10a at the center of the first roll shaft 15. 15a is formed through. The outer peripheral surface of the first roll shaft 15 has a bearing block 30 including a bearing 31, a choke 32 surrounding the bearing 31, and a cover 33 for smooth rotation of the vacuum roll 10a. This is inserted through.

Similarly, the outer surface of the second cover 14 of the vacuum roll 10a facing the second shaft 22 of the water reservoir 20 is formed to protrude coaxially with the axis X of the vacuum roll 10a. The second roll shaft 16 is provided, and another bearing block 30 is inserted through the second roll shaft 16.

A gasket 17 is installed between the open ends of the vacuum roll 10a and the first and second covers 13 and 14 covering the vacuum roll 10a to seal the inside of the vacuum roll 10a.

On the other hand, a rotary joint 34 for coupling the hollow portion 15a of the first roll shaft 15 and the flexible joint 35 to the end portion of the first roll shaft 15 is coupled.

The vacuum installation unit 40 includes a vacuum generator 41 positioned below the roller unit 10, a vacuum pump 42 having a suction end 42a connected to a lower end of the vacuum generator 41, and a vacuum pump. An injector 43 connected to the discharge end 42b of 42 and directed towards the vacuum generator 41.

In detail, the outlet hole is drilled in the lower side of the vacuum generator 41, and the valve 46 and the flexible joint 45 are interposed between the outlet hole and the suction end 42a of the vacuum pump 42. The discharge end 42b of the vacuum pump 42 is also connected to the upper part of the injector 43 through the circulation pipe 44 via the flexible joint 45 'and the valve 46'. In addition, the flexible joint 35 connected to the rotary joint 34 is connected to the side portion of the injector 43 through the drain pipe 47. The operation of the vacuum installation unit 40 configured as described above will be described later.

4 is a perspective view showing the roller portion 10 of the squashing vacuum roll apparatus according to the present invention. As shown therein, the upper vacuum roll 10a is fixed, and the lower vacuum roll 10b is movable up and down by the cylinder 60. In addition, the upper part of the upper vacuum roll (10a) is provided with a dewatering roller 50, the dewatering roller 50 can be moved up and down by the cylinder (51).

Hereinafter, the operation of the squashing vacuum roll apparatus according to the present invention configured as described above will be described with reference to FIGS.

As shown in FIG. 4, the lower vacuum roll 10b is raised by the action of the cylinder 60 to contact the upper vacuum roll 10a, and the dewatering roller 50 is actuated by the action of the cylinder 51. When lowered and contacted with the upper vacuum roll 10a, the upper vacuum roll 10a acts as a dewatering roller of the lower vacuum roll 10b to dehydrate the lower vacuum roll 10b, and the upper vacuum roll 10a is dewatered. The external water is stored in the water reservoir 20 through the hole 11b of the roller cell 11 while being in close contact with each other by the roller 50 for use.

In this way, when the water stored in the water reservoir 20 is above a predetermined level, the vacuum roll through the hollow portion 21a of the first shaft 21 and the hollow portion 15a of the first roll shaft 15. It is drained to the outside of 10a.

In addition, when the vacuum pump 42 is operated, water in the vacuum generator 41 passes through the suction end 42a and the discharge end 42b of the vacuum pump 42 and then injects through the circulation pipe 44. It flows into 43, and is injected again by the injector 43 into the vacuum generator 41, and it returns. At this time, the choke portion (not shown) inside the injector 43 is connected to the drain pipe 47 communicated with the water reservoir 20 in the vacuum roll 10a in a "T" shape, and the vacuum pump 42 As a result, the flow rate through the choke part of the injector 43 increases, and the pressure becomes below atmospheric pressure, so that the inside of the vacuum roll 10a and the drain pipe 47 become in a vacuum state. As a result, the water present in the water reservoir 20 outside the water reservoir 20 is located along the conical portion of the first shaft 21 of the water reservoir 20 and the notch 13a of the first cover 13. It is sucked into the injector 43 via 47 and drained into the vacuum generator 41.

As described in detail above, in the squashing vacuum roll apparatus according to the present invention, the vacuum roll and the dewatering roller are abutted to each other by having a water reservoir for storing and draining the dehydrated water in the vacuum roll. In addition, the water is prevented from getting wet and accumulated on the lower surface of the vacuum roll, and the vacuum is formed by the vacuum equipment unit, and the water inside the vacuum roll is sucked to the outside, so that the outer peripheral surface of the vacuum roll is sufficiently dried. Since the moisture of the surface of a product is removed, the effect more than the conventional 3-4 squashing rolls can be acquired as one vacuum roll.

Claims (5)

Porous roller cell 11 having a space portion 11a formed therein and having a plurality of holes 11b perforated on the outer circumferential surface thereof, a tube 12 having an absorbency and surrounding the outer circumferential surface of the roller cell 11, the roller cell A plurality of vacuum rolls 10a provided in the space part 11a of the 11 to receive water and temporarily storing water, and provided to be in contact / separation with each other; A roller unit 10 formed of a dewatering roller 50 provided to contact / separate from the vacuum roll 10a; Located in the lower portion of the roller portion 10, and communicates with the space 11a and the water reservoir 20 in the vacuum roll (10a), the space by forming the space (11a) in a vacuum state A vacuum facility portion 40 for sucking water in the portion 11a and the water reservoir 20; Squeezing vacuum roll device, characterized in that consisting of. The method of claim 1, One end of the water reservoir 20 is coupled to the first shaft 21 having a hollow portion 21a communicating with the inside of the water reservoir 20, and the other end of the solid second shaft 22 is coupled to the other end. , The bearing 23 is provided between the outer circumferential surface of the first and second shafts 21 and 22 and the inner circumferential surface of the roller cell 11 so that the water reservoir 20 is formed in the space portion of the roller cell 11 ( A squashing vacuum roll device, characterized in that it is supported in 11a). The method of claim 2, One end of the vacuum roll 10a is coupled to the first cover 13 facing the first shaft 21, and the other end is coupled to the second cover 14 facing the second shaft 22. , On the outer surfaces of the first and second covers 13 and 14, first roll shafts 15 and second roll shafts 16 for rotatably supporting the vacuum roll 10a are respectively formed. , Inside the first roll shaft 15 is characterized in that the hollow portion 15a communicating with the inside of the water reservoir 20 through the hollow portion 21a of the first shaft 21 is formed. Squashing vacuum roll device. The method of claim 1, The vacuum installation unit 40 is located under the roller unit 10 and the vacuum generator 41 for storing the water discharged from the roller unit 10, and the suction end of the vacuum generator 41 at the lower end And an injector 43 connected to the outlet 42b of the vacuum pump 42 and injecting water toward the vacuum generator 41. Squashing vacuum roll device. The method of claim 4, wherein The discharge end 42b of the vacuum pump 42 is connected to the upper portion of the injector 43 through the circulation pipe 44, The hollow part (15a) of the first roll shaft (15) is squashing vacuum roll apparatus, characterized in that in communication with the side of the injector (43) through the drain pipe (47).