KR20050004956A - Mixind Apparatus for Alkali Solution - Google Patents

Abstract

PURPOSE: A unit for blending solid alkali into solution is provided to blend solid alkali with water completely in a blending tank. CONSTITUTION: An alkali solution blending tank of the unit for blending solid alkali into a solution has a blending wing(6) fixed to rotating axis(16), which blends alkali with water. The alkali solution blending tank comprises a triangular cam(19), a triangular cam guide(26), a left and right floating plate(15), a left and right floating plate guide(22), a back and forth floating plate, and a back and forth floating guide(25). A triangular cam is fixed at the lower part of the rotating axis(16). The triangular cam guide(26) moves back and forth according to the rotation of the triangular cam.

Description

Solid Alkaline Solution Mixer {Mixind Apparatus for Alkali Solution}

The present invention relates to an alkaline solution mixing device, and more particularly, when the alkaline solution in powder form is mixed with water at a constant ratio, the solid alkali which maximizes the bubbling effect at the bottom of the mixing tank to be mixed within a short time. It relates to a solution mixing device.

In general, various foreign substances such as rolling oil, dust, or machine oil are attached to the surface of the steel sheet after cold rolling. Since these foreign substances are incompletely burned in the annealing process to form carbides, they generate bonds in the process after annealing and also inhibit the aesthetics of the surface. To solve this, the surface is cleaned by chemical or mechanical degreasing before annealing.

In the degreasing process, the steel sheet is dipped in an alkaline solution such as sodium hydroxide, ortho-sodium silicate, and the like to be degreased. After passing the steel sheet through the cleaning equipment 1, the brush rolls 7, and 7a are rotated to debris the surface of the steel sheet. In this case, the alkaline solution is supplied to the spray provided in the cleaning facility 1 through the alkali solution storage unit 2, the alkali collection tank 8, the pump 10 and the supply pipe 11.

The washing solution consumed in the degreasing process is mixed with water in the solid mixing tank 4 and is constantly supplied into the washing facility 1 to enable continuous operation. Particularly, as shown in FIG. 2, the alkali mixing device inputs the solids 12 and water into the solids mixing tank 4 at a constant ratio to rotate the mixing blades 6 in a predetermined direction to solids alkali 12. And water.

However, the method of mixing the solid alkali 12 and water by the above method had various problems. Since the mixing power of the mixing blade 6 is low, the solid alkali 12 and the water are not completely mixed, so that the solid alkali 12 is attached to the surface of the strip 3 in the form of solids during degreasing. Since the strip 3 moves on the roll in the form of the solid alkali 12 attached to the surface, the alkali 12 is sandwiched between the roll and the strip 3 to cause convex grooves continuously.

In addition, when entering the annealing furnace, since it is necessary to perform a separate foreign matter work by continuously generating a foreign matter mark on the surface, there is a problem in that productivity is lowered.

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a solid alkali solution mixing apparatus capable of completely mixing solid alkali and water in a mixing tank.

1 is a perspective view of an alkali cleaning facility.

Figure 2 is a perspective view of a solid alkaline solution mixing device according to the prior art.

Figure 3 is a perspective view of a solid alkaline solution mixing apparatus according to the present invention.

4 is a view showing a coupling relationship between the left and right flow plate guide and the front and rear flow plate of the solid alkaline solution mixing apparatus according to the present invention.

5 is a view showing the operation relationship between the triangular cam and the left and right flow plate and the front and rear flow plate of the solid alkaline solution mixing apparatus according to the present invention.

※ Explanation of main code of drawing ※

1: cleaning equipment 2: alkaline solution storage unit

3: strip 4: mixing tank

5: motor 6: mixing wing

7: brush roll 8: alkali collection tank

9: drain line 10: pump

11: supply piping 12: solid alkali

13: water supply pipe 14: replenishment line

15: left and right flow plate 16: rotation axis

17: lower wing 18: front and rear flow plate

19: triangular cam 20: vertical wing

22: left and right flow plate guide 23: connecting rod

24: Front and rear flow plate 25: Front and rear flow plate guide

26: triangle cam guide

In order to achieve the above object, the solid solution of the alkaline solution of the present invention is an alkali solution mixing tank for mixing alkali and water by a mixing blade fixed to a rotating shaft, wherein a triangular triangular shape fixed to the lower portion of the rotating shaft cam; A triangular cam guide that is bent to accommodate the triangular cam and moves back, front, left, and right according to the rotation of the triangular cam; Left and right flow plate is fixed to the triangular cam guide and the vertical wings are fixed to both ends; A left and right flow plate guide having grooves into which side portions of the left and right flow plates are inserted; The front and rear flow plates are fixed to the lower left and right flow plate guides perpendicularly to the left and right flow plate guides, the front and rear flow plates to which the vertical wings are fixed at both ends, and the grooves into which the sides of the front and rear flow plates are inserted, and are fixed to the mixing tank. A guide is provided.

A lower wing may be further provided below the rotating shaft.

In addition, the vertical wing is characterized in that formed in an arc-shaped curved surface.

Here, the surface of the vertical wing is characterized in that a plurality of holes are formed.

Hereinafter, a description will be given of an alkaline solution mixing device of the solid content of the present invention using the accompanying drawings.

The solid solution of the alkaline solution of the present invention is further provided with components such as triangular cam 19, vertical wing 20, left and right flow plate 15, front and rear flow plate 18, etc. in the conventional alkaline solution mixing device. do.

The lower blade 17 and the triangular cam 19 is fixed to the lower end of the rotating shaft 16 of the alkaline solution mixing device 6 in which the plurality of mixing blades 6 are fixed.

The lower blade 17 is fixed to the lower portion of the rotating shaft 16 to promote the mixing of the solid alkali 12 and water.

The lower end of the rotating shaft 16 is fixed to the triangular cam 19 is a triangular cam adjacent to the lower blade 17, the center of the triangular cam 19 and the rotating shaft 16 to be eccentric with each other.

The triangular cam 19 has a substantially square shape and is accommodated in the triangular cam guide 26 whose sides are bent. The length of one side of the triangular cam guide 26 is formed a little longer than the length of the base of the triangular cam 19, the base and the triangular cam guide 26 of the triangular cam 19 eccentrically fixed to the rotating shaft 16 One side of is adjacent.

The left and right flow plates 15 are coupled to the lower surface of the triangular cam 19.

The left and right flow plates 15 are accommodated in the left and right flow plate guides 22. The left and right flow plate guide 22 is formed with a groove for accommodating the sides of the right and left flow plate 15, the side of the left and right flow plate 15 is inserted into the groove in the left and right flow plate guide 22 The flow plate 15 is restricted to move only in the longitudinal direction.

Under the left and right flow plate 15 and the right and left flow plate guide 22, the front and rear flow plate 18 and the front and rear flow plate guide 25 are perpendicular to the left and right flow plate 15 and the right and left flow plate guide 22. It is provided.

The shape of the front and rear flow plate 18 is generally provided in the same shape as the left and right flow plate 15.

The front and rear flow plates 18 are also accommodated to slide in the front and rear flow plate guides 25 similarly to the left and right flow plates 15. The front and rear flow plate guides 25 are also formed with grooves for accommodating the sides of the front and rear flow plates 18, like the left and right flow plate guides 22, and the front and rear flow plate guides 25 are accommodated in the grooves. In the flow plate guide 25, the front and rear flow plates 18 can slide only in the longitudinal direction.

This front and rear flow plate guide 25 is fixed to the mixing tank (4). The lower surface of the front and rear flow plate guide 25 is fixed on the lower surface of the inside of the mixing tank 4, or the front and rear flow plate guide 25 is extended so that its end is fixed to the side surface of the mixing tank 4 inside.

On the other hand, the left and right flow plate guide 22 which is not fixed to the mixing tank 4 is coupled to the front and rear flow plate 18. Since the side of the front and rear flow plate 18 is inserted into the front and rear flow plate guide 25, a gap is generated between the left and right flow plate guide 22 and the front and rear flow plate 18, so that the connecting table 23 is moved to the left and right flow plate guide. The left and right flow plate guide 22 and the front and rear flow plate 18 are coupled to the 22 and the front and rear flow plates 18, respectively.

As described above, only the front and rear flow plate guide 25 is fixed to the mixing tank 4, and the triangular cam guide 26, the left and right flow plate 15, the left and right flow plate guide 22 and the front and rear flow plate 18 are fixed. Is not fixed to the mixing tank (4).

Near both ends of each plate 15, 18, vertical wings 20 are vertically coupled to the surfaces of the left and right flow plates 15 and the front and rear flow plates 18. The vertical wing 20 is formed to have a curvature so that the convex portion faces the inner wall of the mixing tank 4 so that the solution coincides with the flow generated by the mixing wing 6 and the lower wing 17, and the concave portion rotates. It is fixed to face 16.

On the other hand, a plurality of holes of the vertical wing 20 is formed to further promote the stirring of the solid alkali 12 and water.

Referring to the action of the alkaline solution mixing device of the solid content of the present invention having the configuration as described above is as follows.

First, after filling the solid alkali 12 and water in the fixed ratio with the mixing tank 4, and applying the power to the motor 5 connected to the rotating shaft 16 to rotate, the rotating shaft 16 and the rotating shaft 16 As the mixing blade 6, the lower blade 17 and the triangular cam 19 fixed to it rotate, the solid alkali 12 and water start to stir.

At this time, while the triangular cam 19 fixed to the rotary shaft 16 is rotated, the triangular cam guide 26 moves forward, backward, left and right. The triangular cam guide 26 moves forward, backward, left and right, and simultaneously reciprocates the plates 15 and 18 under the triangular cam guide 26.

When the triangular cam 19 rotates as shown in 1 to 4 in FIG. 5, the triangular cam guide 26 tries to rotate according to the rotation of the triangular cam 19, but the lower portion moves in the left and right flow plate guide 22. Since it is fixed to the left and right flow plate 15, it does not rotate and moves in the longitudinal direction of the left and right flow plate 15. In this case, the left and right flow plate guide 22 is also coupled to the front and rear flow plate 18 moving in the front and rear flow plate guide 25 coupled to the mixing tank 4 to move in a direction perpendicular to the left and right flow plate 15. Therefore, as the triangular cam 19 rotates on the rotation shaft 16, the left and right flow plates 15 and the front and rear flow plates 25 reciprocate in their respective longitudinal directions.

The alkaline solution that rotates in a predetermined direction by the mixing blade 6 and the lower blade 17 rotates along the vertical blade 20, and at this time, the plates 15 and 18 reciprocate to be perpendicular to the traveling direction of the alkaline solution. The movement of the vertical blades 20 in one direction promotes mixing of the alkali 12 and the water in the solid solution in the alkaline solution.

In addition, since a plurality of holes are formed on the surface of the vertical wing 20, the alkali solution passes through the inner and outer surfaces of the vertical wing 20 through the hole, so that the mixing of the alkali 12 and the solid content of water is further promoted.

Alkali solution completely dissolved through the above process is supplied from the mixing tank 4 to the cleaning equipment to clean the surface of the strip passing through the cleaning equipment.

The alkaline solution mixing device of the solid content of the present invention having the configuration and action as described above can be expected the following effects.

By dissolving the solid form alkali in water within a short time, it is possible to improve the cleaning power of the strip, to suppress the generation of alkali of the solid content remaining on the strip after cleaning to improve the quality of the product and reduce the work process.

Claims (4)

In an alkaline solution mixing tank in which alkali and water are mixed by a mixing blade 6 fixed to a rotating shaft 16, A triangular cam 19 having a triangular shape fixed to the lower portion of the rotating shaft 16; A triangular cam guide 26 that is bent to accommodate the triangular cam 19 and moves back, front, left, and right according to the rotation of the triangular cam 19; Left and right flow plate 15 is fixed to the triangular cam guide 26 and the vertical wing 20 is fixed to both ends; A left and right flow plate guide 22 having grooves into which side portions of the left and right flow plates 15 are inserted; A front and rear flow plate 18 fixed vertically to the left and right flow plate guide 22 at a lower portion of the left and right flow plate guide 22 and having vertical wings 20 fixed to both ends thereof; An alkali solution mixing apparatus for solid content, characterized in that a groove into which a side portion of the front and rear flow plate (18) is inserted is formed, and a front and rear flow plate guide (25) fixed to the mixing tank (4) is provided. The method of claim 1, Alkaline solution mixing apparatus, characterized in that the lower blade 17 is further provided on the lower portion of the rotating shaft (16). The method of claim 1, The vertical wing 20 is solid alkaline solution mixing device, characterized in that formed in a curved arc-shaped. The method of claim 1, Solid solution of the alkaline solution, characterized in that a plurality of holes are formed on the surface of the vertical wing (20).