KR100803976B1 - Device for removing particle in descaler - Google Patents

Abstract

It is an object of the present invention to provide a descaler debris removal device for removing debris such as thick balls, bolts and nuts, and broken pieces of equipment that can be supplied through a preliminary hopper before passing through the lower screw. The removal device is a descaler for removing the scale by projecting the shot ball onto the surface of the strip using a projection fan, a ball chute for guiding the shot ball transferred to the upper screw of the descaler, and one side at the bottom of the ball chute. A separator formed by a belt driving motor fixed to the separator and a separation belt formed with a mesh for filtering foreign substances while passing the shot ball, and a foreign material collector installed at one side of the separation belt; And a separating part connected to the sorting part to remove the foreign matter from the shot ball transferred from the sorting part, wherein the separating part is opened toward the separating chute, the separating chute which guides the shot ball and the foreign matter, and the foreign matter is passed through the shot ball. A foreign matter collection box with a foreign matter collection network to filter out, connected to the foreign matter collection box when the foreign matter collection box reciprocates, the side rod supporting the foreign matter collection box, and fixed to the lower part of the foreign matter collection box to reciprocate the foreign matter collection box It includes a push cylinder.

Descaler, Shot Ball, Projection, Scale Layer, Peeling, Debris Removal

Description

Device for removing particle in descaler

Figure 1 is a perspective view showing the overall structure of the descaler is installed foreign matter removing apparatus according to the present invention.

Figure 2 is a perspective view showing a sorting portion of the foreign matter removing apparatus according to the present invention.

Figure 3 is a perspective view showing a separation portion of the foreign matter removing apparatus according to the present invention.

Figure 4 is a side cross-sectional view showing the separation of FIG.

5 is a perspective view showing the operation of the sorting unit.

Figure 6 is a side view showing the operation of the sorting unit.

Explanation of symbols on the main parts of the drawings

21: sorting unit 23: belt drive motor

25: separation belt 27: guide plate

29: collection box 31: guide suit

33: Emergency sorting gate 35: Collection box

37: driving detection roller 39: signal generator

41: separation part 45: separation chute

47: foreign material collection network 49: foreign material collection box

51: Side Rod 53: Push Cylinder                 

55: discharge chute

TECHNICAL FIELD The present invention relates to a descaler, and more particularly, to a descaler for breaking a scale layer attached to a strip surface using a shot ball to promote a descale reaction when passing through a pickling line.

In general, the oxide scale layer formed on the surface of the stainless strip is very dense in structure, so that it does not dissolve well in sulfuric acid, nitric acid and hydrofluoric acid solutions used in pickling facilities.

Therefore, it is necessary to crack the scale layer so that the acid solution can penetrate deep into the tissue. To do this, a descaler is installed.

A descaler is a device that causes cracks in the scale layer of a surface by projecting a fine shot ball onto a strip through a wheel that rotates at high speed.

The projected shot balls are collected at the bottom and sent to the upper side by the rotating screw so that dust and mist are discharged through the separator, and the reusable shot balls are stored in the main hopper and supplied to the wheel unit through piping. Proceeds to.

However, because the shot ball repeatedly used for a long time is broken or worn out and discharged in the form of dust, a preliminary hopper is installed to secure a certain amount of shot ball. When the main hopper is filled up properly, the spare hopper damper is closed.

At this time, foreign matter mixed in the shot ball to be supplemented (coarse balls, bolts, broken pieces of equipment, etc.) is also supplied to the lower part of the equipment together with the shot ball to cause damage to the lower screw.

In addition, the thick shot balls, small bolts, and nuts passing through the lower screw are supplied to the top through the bucket elevator along with the shot balls to paralyze the function of the separator.The shot balls are stored in the main hopper together with the shot balls, and then projected onto the strip. There is a problem in that the stainless coil, which has undergone several processes, has to be scraped in the final process by causing a blade breakage and a fine defect that is a fatal defect in the strip.

Further, product reliability is impaired due to the delay of delivery due to the replacement of the scraped stainless coil.

In addition, productivity has been reduced due to facility damage caused by foreign substances.

The present invention has been made to solve the above problems, the object of the present invention is to remove the foreign matter such as thick balls, bolts and nuts, broken pieces of equipment, etc. that can be supplied through the preliminary hopper before passing through the lower screw To provide a debris removal device of the scaler.

In order to achieve the above object, the foreign material removing apparatus of the present invention uses a projection fan to project the shot balls onto the surface of the strip to remove scale, thereby guiding the shot balls transferred to the upper screw of the descaler. It consists of a ball chute, a belt that is rotated by a belt drive motor fixed to one side at the bottom of the ball chute, and a separation belt formed by a mesh to filter foreign matter while passing the short ball, and a foreign matter collector installed on one side of the separation belt. Selection section that is; And a separating part connected to the sorting part to remove the foreign matter from the shot ball transferred from the sorting part, the separating part being separated toward the separation chute to guide the shot ball and the foreign matter, separating the chute while passing through the shot ball. It is connected to a foreign material collection box with a foreign material collection network, a side rod supporting the foreign material collection box when the foreign material collection box reciprocates, and a push fixed to the lower part of the foreign material collection box to reciprocate the foreign material collection box. It includes a cylinder.

And it is preferred to further include a guide plate which is installed between the separation belt and both ends are bent downward relative to the central portion in the longitudinal direction.

In addition, in order to prevent a malfunction of the device in case of excessive accumulation of foreign matter or shot balls on the separation belt, the drive detection roller installed in the lower portion of the separation belt, and the signal generator connected to the drive detection roller, A moving cylinder which is operated by receiving a signal from a signal generator and is fixed between the ball chute and the separating belt, a guide chute that is moved forward and backward by the moving cylinder, and an emergency sorting tool formed on the sorting table for sorting the shot balls. It is desirable to be.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. 1 is a perspective view showing the entire structure of a descaler installed with a debris removing apparatus according to the present invention, Figure 2 is a perspective view showing a selection unit of the debris removing apparatus according to the present invention, Figure 3 is a foreign matter according to the present invention It is a perspective view which shows the separation part of a removal apparatus.

Before explaining the configuration and operation of the conventional descaler, the shot ball projected onto the surface of the strip S by the projection fan 3 rotated by the rotary motor 1 is transferred to the lower side. After collecting in the lower screw (5), collected in the bucket (9) of the elevator (7) which is rotated up and down, the collected shot ball is moved to the upper side to the ball chute 13 by the upper screw (11) The transported and used shot balls are sorted by the ball sorting stand 15 and then re-injected and projected, and the waste balls are dropped from the ball sorting stand 15 through the waste ball transfer pipe 17 to the collection box and collected. do.

At this time, the ball sorting table 15 separates shot balls and foreign substances falling by a fixed separation network, and waste materials or waste bolts inside the equipment are mixed or caught in the separation network to damage the network or into the equipment. Projected to create serious quality defects on the strip surface.

In order to prevent this, the present invention proposes the following selection unit.

The sorting unit 21 includes a ball chute 13 for guiding the shot ball transferred to the upper screw 11, a separation belt 25 rotated by the belt driving motor 23, and an interior of the separation belt 25. A guide plate 27 positioned at the center, a foreign material collection box 29 for collecting foreign substances, a guide chute 31 moved forward and backward by the moving cylinder 30 at the lower part of the ball chute 13, and a sorting table 15. Consists of an emergency separator (33) further formed in.                     

Here, the ball chute 13 is provided with guides 13a for guiding the shot balls on both sides to guide the shot balls to fall toward the separating belt 25.

The separation belt 25 is formed of a mesh having a size that allows the shot ball to pass, and foreign matter larger than the mesh is transported by the separation belt 25 and then dropped into the foreign matter collection box 29.

A separation net 29a having the same mesh as that of the separation belt 25 is installed inside the foreign material collection box 29 to pass the shot balls that are not separated from the separation belt 25, and the shot balls passed through are separated again. It flows into the stand 15.

And the foreign matter caught in the separation network (29a) is collected in the collection box 35 through the waste transfer pipe (17).

Guide plate 27 for guiding the shot ball passed through the mesh of the separation belt 25, as shown in Figs. 5 and 6, both ends are bent downward relative to the central portion in the longitudinal direction so that the central portion is raised.

As a result, the dropped shot balls fall to both sides of the guide plate 27 and flow into the sorting table 15.

The sorting unit 21 detects the separation belt 25 which sags into the foreign matter and the shot ball excessively stacked to prevent the failure of the device when the foreign matter or shot balls are piled up excessively above the separation belt 25. Install the drive detection roller 37 and the signal generator 39 can be.

On the other hand, the separation unit 41 according to the present invention is installed in the middle of the shot ball projected from the projection fan 3 to the lower screw (5). It demonstrates with reference to FIG. 3 and FIG.

Separation unit 41 is a separation chute (49) for inducing the shot ball and foreign matter, the foreign matter collection box (49) is installed toward the separation chute (45) and the foreign matter collection net 47 for filtering foreign matter while passing through the shot ball. ), When the foreign matter collection box 49 is connected to the foreign matter collection box 49 to reciprocate, the side rod 51 supporting the foreign matter collection box 49, and the foreign matter fixed to the lower part of the foreign matter collection box 49 And a push cylinder 53 for reciprocating the collection box 49.

Here, the separation chute 45 has guides 45a formed on both sides thereof to induce foreign matter together with the shot ball.

Induced shot ball and foreign matter is introduced into the foreign matter collection box 49, for this purpose one side of the foreign matter collection box 49 is open, the separation chute 45 is located inward.

And in order to guide the filtered foreign matter to the outside of the foreign matter collection box 49 is opened, and the discharge chute 55 is installed there.

Foreign matter collection net 47 is formed a mesh hole through which the shot ball can penetrate and only filter foreign matter.

The foreign material removing apparatus according to the present invention configured as described above has the following effects.

The shot ball projected through the projection fan 3 breaks down the malignant scale attached to the upper and lower strips S, and then flows into the separation part 41 at the lower part, and is guided by the inclined separation chute 45 and foreign material. It flows into the collection box 49.                     

The introduced shot ball and foreign matter are separated from the shot ball and foreign matter in the foreign matter collection network 47, the side rod 51 is inserted into the duct 43, and the push cylinder 53 is left and right of the foreign matter collection box 49. To oscillate by reciprocating.

Then, the shot ball passes through the mesh of the foreign matter collection network 47, the foreign matter is filtered by the foreign matter collection network 47, and gradually moves toward the discharge chute 55 by the vibration of the foreign matter collection box 49. In the end, it is collected into the foreign material collector (59).

The shot balls sorted by the foreign matter collection network 47 are transferred to the upper ball storage tank by the lower screw 5 and the bucket elevator 7.

The shot ball is supplied to the ball chute 13 by an appropriate amount through the upper screw by the amount transferred, and falls onto the separation belt 25 through the ball chute 13.

The separating belt 25 is already being rotated by the belt driving motor 23, and the shot ball dropped to the separating belt 25 is pulled out through the mesh of the separating belt 25 and guided and guided by the guide plate 27. Inflow to the base 15, foreign matter is filtered by the separation belt 25 and then moved along the rotating separation belt 25 is collected in the foreign matter collection box (29).

Of the foreign substances introduced into the foreign matter collection box 29, the normal shot balls not yet filtered are reused again through the mesh of the separating network 29a, and the shot balls introduced to the sorting table 15 flow into the projection fan 3. To be reused.

If the foreign matter or shot balls are piled up excessively above the separation belt 25 and become stagnant, the separation belt 25 sags, and the sag separation belt 25 comes into contact with the driving detection roller 37, thereby driving detection. The roller 37 rotates and the signal generator 39 detects the rotation of the driving detection roller 37.

At this time, the detected signal stops the belt driving motor 23 driving the separation belt 25.

At the same time as the belt drive motor 23 is stopped, the moving cylinder 30 receiving the signal generated by the signal generator 39 expands to advance the guide chute 31.

Then, the shot ball that has been dropped is dropped to the emergency sorting opening 33 by the guide chute 31 is a continuous operation is made. At this time, the worker collects the foreign matters arranged on the separation belt 25 by the alarm installed in the cab and then operates the belt driving motor 23 to repeat the previous work.

Then, the moving cylinder 30 is shortened to return the guide chute 31 to its original position.

As described above, according to the present invention, foreign matter or waste materials generated inside the apparatus during the projection of the shot ball may be divided into two by adopting the sorting part and the separating part to improve the removal efficiency of the foreign matter.

At the same time, it is possible to collect and remove a large amount of foreign matter continuously, so that it is possible to continuously supply pure shot balls, thereby efficiently removing annealing scales attached to the strip surface in the annealing pickling process, thereby improving quality and productivity.

Claims (3)

In the descaler to remove the scale by projecting the shot ball to the surface of the strip using a projection fan, Separation belt is formed by a ball chute for guiding the shot ball transferred to the upper screw of the descaler, and a mesh driven belt fixed to one side at the bottom of the ball chute, the mesh passing through the shot ball to filter foreign matter And, the sorting portion consisting of a foreign material collection box is installed on one side of the separation belt; And A separation unit connected to the sorting unit to remove the foreign matter from the shot ball transferred from the sorting unit Including, The separation unit, Separation chute for inducing the shot ball and the foreign matter, The foreign matter collection box is opened toward the separation chute, the foreign matter collection network is installed to filter the foreign matter while passing through the shot ball, A side rod connected to the foreign matter collection box and supporting the foreign matter collection box when the foreign matter collection box reciprocates, and A push cylinder fixed to a lower portion of the foreign matter collection box to reciprocate the foreign matter collection box Descaler debris removal device comprising a. The method of claim 1, The descaler debris removal device of claim 1, further comprising a guide plate which is installed between the separation belts and both ends are bent downward based on the central portion in the longitudinal direction. According to claim 1, In order to prevent failure of the device in the case of congestion due to excessive accumulation of foreign matter or shot ball on the separation belt, A drive detection roller installed under the separation belt, a signal generator connected to the drive detection roller, a moving cylinder operated by receiving a signal from the signal generator, and fixed between the ball chute and the separation belt, the moving cylinder The descaler debris removal device further comprises a guide chute that is moved forward and backward by, and an emergency sorting tool formed on a sorting table for sorting the shot balls.

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