KR100868448B1 - An apparatus for improving the pickling efficiency of hot rolled sheet - Google Patents

Abstract

An apparatus for improving the pickling efficiency of a hot-combusted material during the pickling process of the hot-combusted material, in which the surface of the hot-rolled material, which is an electrical steel sheet, is precipitated and cleaned in a pickling tank, is provided.

The pickling efficiency improving device (1) of the hot combustion material comprises: an inclined rotary shaft (16) (18) installed so as to rotate as motors (12) (14) on both sides of the fixing table (22) provided inside the pickling tank (100), A driver 10 having an inclined rotating plate 20 fixedly integrated at an upper end of the inclined rotating shafts 16 and 18; And a sliding shaft 34 connected to the inclined rotary plate 20 in the form of a universal joint, and the sliding shaft 34 is inserted at both ends of the sliding shaft 34 so as to be rotatable and slidable therein, and the hot combustion material 120 is disposed at an upper portion thereof. It is configured as a material looper variable portion 30 having a shandong copper roll 36 in close contact.

Therefore, according to the present invention, by varying the looper amount by moving the hot combustion material passing through the pickling tank up and down, while improving the degreasing power during the cleaning of the hot combustion material passing through the pickling tank, It provides the effect of improving pickling efficiency by minimizing sludge generation.

Electrical steel, hot rolled material, pickling tank, pickling efficiency improving device, degreasing, cleaning

Description

Pickling efficiency improving device for hot-rolled materials {AN APPARATUS FOR IMPROVING THE PICKLING EFFICIENCY OF HOT ROLLED SHEET}             

1 is a schematic view showing a pickling operation of a general hot-rolled material

Figure 2 is a perspective view showing a pickling efficiency improving device of the hot-combusted material according to the present invention

Figure 3 is a front configuration diagram showing a pickling efficiency improving device of the inventors hot-rolled material

Explanation of symbols on the main parts of the drawings

1 .... Device for improving pickling efficiency of hot-combusted materials 10 .... Drive part

12,14 .... Drive motor 16,18 .... Inclined rotation shaft

20 .... Tilt turn plate 22 .... Fixture

30 .... Material looper variable part 32 .... Universal joint

34 .... sliding shaft 36 .... Shanghai East Roll

38 ... bearing

The present invention relates to a pickling process of a hot-combusted material for precipitating and cleaning the surface of a hot-rolled material, which is an electrical steel sheet, in a pickling tank, and more particularly, by varying the amount of looper by moving the hot-burned material passing through the pickling tank up and down. The present invention relates to a device for improving pickling efficiency of a hot-combusted material which improves degreasing power during cleaning of the hot-combusted material passing through a tank, and improves pickling efficiency by minimizing the amount of sludge deposited in the pickling tank.

1 shows a general conventional hot combustion material pickling operation, and after filling the sulfuric acid mixed in a predetermined ratio with an appropriate level in the pickling tank 100, the sulfuric acid 110 filled in the pickling tank 100 is filled. The electrical steel sheet hot-rolled material 120, which is supported and transported as guide rollers 102a and 104b installed at the inlet and outlet sides 102 and 104 of the tank 100, is continuously looped. Accordingly, a pickling process is performed in which various contaminants and oxidative scales on the surface of the hot combustion material 120 are removed.

However, in the conventional hot combustion material pickling operation, the sludge in the pickling tank 100 while performing the pickling process of the hot combustion material 120 for a long time while the hot combustion material 120 continuously passes through the pickling tank 100. While the S) is precipitated, the degreasing power of the material is lowered, and in particular, the looper amount L of the hot combustion material 120 is always constant at the central portion of the pickling tank 100, so that the cleansing occurs in the pickling tank 100. Since contaminants are sludged and easily precipitated on the tank bottom, there was a problem of significantly lowering pickling efficiency of the material.                         

After all, during the pickling operation of the hot combustion material shown in FIG. 1, since the looper amount of the hot combustion material is constant, the sludge settled in the pickling tank 100 after stopping the tank progress of the hot combustion material 120 periodically. Cleaning process, and eventually the pickling process of the hot combustion material is delayed.

In addition, according to another conventional method, by installing a separate air bubbling device 130 to the pickling tank 100 to reduce the sludge settling, according to the looper amount of the hot combustion material 120 is constant. In some cases, this causes another problem of increasing the amount of sulfuric acid fumes generated during operation.

In this case, reference numerals 140a and 140b not described in FIG. 1 denote discharge pipes and sulfuric acid supply pipes, respectively.

Accordingly, if the roofing state of the hot combustion material 120 that passes through the pickling tank 100 is varied, the amount of sludge settles, so that the pickling efficiency can be improved.

The present invention has been made in order to improve the various problems as described above, the object of the present invention is to change the amount of steel sheet looper by moving the hot combustion material passing through the pickling tank up and down, thereby reducing the amount of sludge deposition in the pickling tank. It is possible to improve the degreasing power during the cleaning of the hot combustion material passing through the pickling tank, and to minimize the amount of various sludges deposited in the pickling tank, thereby improving the pickling efficiency of the hot combustion material to improve the pickling efficiency.

As a technical configuration for achieving the above object, the present invention, in the hot combustion material pickling equipment having a pickling tank filled with sulfuric acid for pickling the hot combustion material therein, the motor on both sides of the stator installed inside the pickling tank A driving unit having an inclined rotating shaft installed so as to rotate and an inclined rotating plate integrally fixed to an upper end of the inclined rotating shaft; And,

A material looper variable part having a sliding shaft connected to the inclined rotating plate in the form of a universal joint, the sliding shaft being inserted at both ends so as to be rotatable and slidable therein, and wherein the hot rolled material is in close contact with the upper rolled copper roll; By providing a device for improving pickling efficiency of the constructed hot-burned material.

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

Figure 2 is a perspective view showing a pickling efficiency improving device of the hot-burning material according to the present invention, Figure 3 is a front configuration diagram showing a pickling efficiency improving device of the hot-burning material of the present invention, the conventional pickling equipment is denoted by the same reference numerals.

As shown in Figures 2 and 3, the pickling efficiency improving device 1 of the present invention hot combustion material can be largely divided into a driving unit 10, and a material looper variable portion 30, these components 10 ( 30) is described in detail as follows.

First, referring to the pickling equipment in which the present invention is installed in the pickling efficiency improving device 1 of the hot combustion material, as shown in FIG. 1, the hot combustion material 120 is pickled inside, that is, various contaminants and oxidation scales on the surface thereof. The hot combustion material 120 proceeds through the inlet and outlet sides 102 and 104 of the pickling tank 100 filled with sulfuric acid 110 to pickle the acid.

That is, as shown in Figures 2 and 3, the apparatus 1 of the present invention by moving the hot combustion material 120 installed in the pickling tank 100 proceeds up and down, thereby moving the looper (L) of the material It is a device for minimizing sludge tank settling due to the continuously variable and thus the sulfuric acid phenomena.

Next, as shown in Figures 2 and 3, the drive unit 30 of the pickling efficiency improving device 1 of the present invention, the heat combustion material, both sides of the fixing base 110 installed in the pickling tank 100. And the inclined rotary shafts 16 and 18 provided to rotate as the motors 12 and 14, and the inclined rotary plate 20 integrally fixed to the upper end of the inclined rotary shafts 16 and 18.

That is, as shown in FIG. 3, the fixing stand 22 of the driving unit 10 is adjacent to the mouth 102 (FIG. 1) of the pickling tank 100 and is welded and fixed horizontally on both sides thereof. It is bolted horizontally (not shown), and the support 22 is provided with a support plate 22a on which the motors 12 and 14 described later are installed.

And, as shown in Figure 3, the inclined rotation shaft (16, 18) is supported as a bearing (16a, 18a) installed on the fixing table 22 to rotate inclined integrally when driving the motor, in this case Although not shown, it is preferable that a reduction gear and a coupling are connected between the motor 12, 14 and the inclined rotational shaft 16, 18, which is connected to the inclined rotation shaft 16, 18. This is because the rotation speed of the inclined rotating plate 20 can be low.

In addition, as shown in FIGS. 2 and 3, the inclined rotating plate 20 of the driving unit 10 is fixed to the upper end of the inclined rotating shafts 16 and 18, respectively, but is schematically illustrated in the drawings. The inclined rotating plate 20 and the inclined rotating shafts 16 and 18 are assembled by a screw method.

Next, as shown in FIGS. 2 and 3, the material looper variable part 30 of the pickling efficiency improving device 1 of the present invention is a universal joint to the inclined rotating plate 20 of the driving part 10. It is provided with a sliding shaft 34 connected in the form, and the sliding shaft 34 is inserted at both ends so as to be rotatable and slidable therein, and the hot rolled material 120 is in the upper and lower rolls 36. .

At this time, as shown in Figure 3, the one end of the inclined rotary plate 20 is connected to the end 32a of the sliding shaft 34 and pin 31 connected to the end 32a on one side The end 32b of the connecting bar 32 which is integrated is connected to the connecting piece 20a and the pin 31 which protrude integrally at one point of the inclined rotating plate 20, thereby rotating the inclined rotating plate 20. When the sliding shaft 34 is slidable of the connecting bar 32 connected in the form of a universal joint so as to slide in a straight line from the inside of the shandong copper roll 36 without applying a load to the shandong copper roll 36. do.

That is, connecting the sliding shaft 34, the connecting bar 32 and the inclined rotary shaft 20 in the form of a universal joint, when the inclined rotary plate 20 is rotated by the inclination angle by the inclined rotary plate 20 Since the difference in the height of the connection point is a configuration to facilitate the sliding operation of the sliding shaft (34).

Next, as shown in FIG. 3, the two sliding shafts 36, which are connected as the connecting bars 32 in the form of universal joints, to the two inclined rotary plates 20 on the fixing table 22, have substantially the raw material 120 at the top. The sliding shaft 34 is inserted into the shank copper roll 38 which is in contact with each other, and as a result, a connection height difference with the universal joint 32 is generated during the rotation of the inclined rotary plate 20, the sliding shaft 34 is assembled in the horizontal direction. The shandong copper roll 36 supports the hot burned material 120 which is advanced in a state where a height difference occurs so that the looper L of the hot burned material 120 is not constant as shown in FIG. 1.

As a result, as shown in Figure 1, while the tank central portion looper (L) of the hot combustion material 120 is changed in the up and down direction, sulfuric acid 110 in the pickling tank 100 flows by that amount, and the sludge S included therein. To reduce the amount of tank sedimentation.

At this time, as shown in Figure 3, the bearing 38 is installed on the inner diameter of the end portion of the shankdong roll 36, the sulfide shaft 34 is inserted at both ends is to enable the movement and rotation of the shaft at the same time The sliding shaft 34 inserted into the shank copper roll 36 by using a linear stroke bearing can be slid, and the shank copper roll 36 of the hot rolled material 120 can be moved. It consists of a configuration that supports the rotation possible.

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

1 to 3, a tanker looper of the hot combustion material 120 in the pickling process of the hot combustion material which passes through the sulfuric acid 110 in the pickling tank 100 and cleans various foreign substances and oxidation scales on the surface. The pickling efficiency improving device 1 of the hot-combusted material of the present invention, which arbitrarily varies L to reduce the sludge sedimentation amount in the tank 100 and improves the pickling efficiency of the hot-combusted material, is as follows.

First, as shown in FIG. 1, the sulfuric acid 110 is filled into the pickling tank 100 of the hot combustion material pickling facility, and the looper L is formed through the inlet and outlet sides 102 of the pickling tank 100. When it progresses in the forming state, an operator operates the motor 12 and 14 on the fixing stand 22 of this drawing device 1 through the operation panel which is not shown in figure.

Accordingly, the driving force of the motor 12 primarily rotates the inclined rotational shafts 16 and 18 connected to the motor and disposed inclinedly between the stators 22, and eventually the upper end of the inclined rotational shafts 16 and 18. The inclined rotary plate 20 on both sides installed inclined integrally to the inclined rotary plate 20 is inclined and rotated by the inclined angle of the inclined rotary shaft.

As a result, as shown in Figures 2 and 3, when the inclined rotary plate 20 is rotated, the connection bar 32 in the form of a universal joint is connected between the inclined rotary plate 20 and the sliding shaft 34 The sliding shaft 34 slides by the diameter width of the inclined rotary plate 20 and the shank copper roll 36 in which the sliding shaft 34 is inserted into both sides by the height difference of the inclined rotary plate 20. Will repeat the move operation up and down.

Therefore, as shown in FIGS. 1 and 3, the hot-rolled material 120 supported by the Shanghai copper roll 36 is moved up and down while the looper of the hot-rolled material 120 is moved from the center of the pickling tank 100. L) is variable, which in turn causes the flow of sulfuric acid as the hot combustion material 120 moves up and down within the sulfuric acid 110, so that the amount of sludge S contained in the sulfuric acid 110 is deposited at the tank bottom side. Therefore, pickling efficiency of the hot combustion material 120 is also increased.

At this time, as shown in Figure 3, the bearing 38 is installed on the inner diameter of the end portion of the shankdong roll 36, the sulfide shaft 34 is inserted at both ends is to enable the movement and rotation of the shaft at the same time By using a linear stroke bearing, the sliding shaft 34 inserted into the inside of the shank copper roll 36 is capable of sliding and at the same time, the shank copper roll 36 when the hot rolled material 120 proceeds. Enable rotation of

Accordingly, according to the pickling efficiency improving device 1 of the present invention hot combustion material 120, the looper of the hot combustion material 120 passing through the pickling tank is repeatedly changed up and down while the yellow phase 110 in the pickling tank 100. Since the sludge prevents sludge tank settling, the sludge settling amount is reduced to improve the pickling efficiency of the hot combustion material.

Thus, according to the pickling efficiency improving device of the hot combustion material of the present invention, it is possible to reduce the amount of sludge settled in the pickling tank, improve the degreasing power during the cleaning of the hot burned material passing through the pickling tank, and at the same time various sludge settled in the pickling tank It is to provide an excellent effect to improve the pickling efficiency by minimizing the amount of generated.

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 (2)

In the hot combustion material pickling equipment having a pickling tank 100 is filled with sulfuric acid 110 to pickle the hot combustion material 120 therein, Inclined rotating shafts 16 and 18 installed on both sides of the fixing table 22 installed in the pickling tank 100 as motors 12 and 14 and upper ends of the inclined rotating shafts 16 and 18. A drive unit 10 having an inclination rotating plate 20 fixedly integrated therein; And, The sliding shaft 34 connected to the inclined rotating plate 20 in the form of a universal joint and the sliding shaft 34 are inserted at both end portions so as to be rotatable and slidable therein, and the hot combustion material 120 is in close contact with the upper portion. Pickling efficiency improvement device for hot-combusted material, characterized in that configured as; material looper variable portion 30 having a shandong copper roll 36 The linear stroke bearing (38) according to claim 1, wherein both ends of the shank roll (36) into which the sulfiding shaft (34) is inserted allow rotation and sliding of the sliding shaft (34). Pickling efficiency improvement device for hot-combustion material, characterized in that the mounting

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