JPH0596066U - Skid part of pickling tank - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a skid part of a pickling tank in which the skid cap is not loosened or displaced and the skid cap can be easily removed. [Structure] A skid cap 4 is fitted into a recess formed in the upper end of a brick 3 with a release layer 8, an acid resistant mortar layer 9 and a rubber sheet 7 interposed in this order from the bottom. [Effect] The acid resistant mortar layer 9 prevents backlash and displacement, and the release layer 8 facilitates removal of the skid cap 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a skid part of a pickling tank used for continuous pickling of strip steel sheets and the like.

[0002]

[Prior Art]

 In the pickling tank for continuous pickling, the inside of the tank lined with acid-resistant porcelain bricks is divided into several parts by a partition wall called the skid part, and strip-shaped thin steel plate etc. run over this skid part. Then, they are sequentially added to the pickling solution in each tank to perform continuous pickling.

The skid portion is worn in a short period of time because the strip-shaped thin steel plate and the like constantly come into contact with each other to travel, and cannot be used in a short period of time. Therefore, as disclosed in Japanese Utility Model Publication No. 50-20010, a structure in which a recess is formed in the upper end of a brick of a skid portion and a skid cap is fitted in the recess via a rubber sheet has been conventionally used. In this way, only the worn skid cap needs to be replaced, so there is no need to replace the entire skid part as in the past.

However, in this structure, the dimensional accuracy of the concave portion of the upper end of the brick is important, and when the dimensional accuracy of the concave portion is lowered due to distortion or shrinkage that is inevitably generated during brick baking, a gap is generated between the concave portion and the rubber sheet. However, there is a drawback that the skid cap is apt to rattle or shift. In addition, there are cases where the rubber sheet swells due to hydrochloric acid, etc. that has entered through this gap, and when you want to replace the skid cap, the rubber sheet adheres to the brick side or gets caught on the brick side, making it difficult to remove the skid cap. there were.

[0005]

[Problems to be solved by the device]

 The present invention solves the above-mentioned conventional problems, and even when the dimensional accuracy of the concave portion of the brick is low, the skid cap does not rattle or shift, and the skid cap can be easily replaced if it is desired. It was completed in order to provide a skid part of the pickling tank that allows the cap to be removed.

[0006]

[Means for Solving the Problems]

 The present invention, which was made to solve the above-mentioned problem, has been proposed in the skid part of a pickling tank in which a skid cap is fitted through a rubber sheet in the recess formed in the upper end of the brick, and It is characterized in that a release layer and an acid resistant mortar layer are sequentially formed between the rubber sheet and the rubber sheet.

[0007]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. In FIG. 1, reference numeral 1 is a tank body of a pickling tank, and 2 is a skid section that divides the inside into several parts. The skid portion 2 has a structure in which a ceramic skid cap 4 having excellent wear resistance is fitted to the upper end surface of an acid-resistant brick 3, and a strip-shaped thin steel plate to be pickled is used for this skid cap 4. It is designed to run while touching the upper surface of the car.

As shown in FIG. 2, a recess 5 is formed at the upper end of the brick 3 in the width direction of the tank body 1, and a skid cap 4 having a projection 6 on the lower surface is fitted in the recess 5. Reference numeral 7 is a rubber sheet interposed on the lower surface of the skid cap 4, and the above construction is basically the same as the conventional skid portion. However, in the present invention, the rubber sheet 7 is not directly in contact with the recess 5 of the brick 3 as in the conventional case, but the release layer 8 and the acid resistant mortar layer are provided between the recess 5 of the brick 3 and the rubber sheet 7. 9 is formed.

The release layer 8 is a release paper such as an adhesive tape, and is adhered to the recess 5 of the brick 3 in advance. Then, the acid resistant mortar layer 9 is placed on the surface thereof, and the skid cap 4 having the rubber sheet 7 attached to the lower surface of the protrusion 6 is pressed to bring the rubber sheet 7 and the acid resistant mortar layer 9 into close contact. The concave portion 5 of the brick 3 may have a shape in which the upper portion is opened obliquely as shown in FIG.

[0010]

[Action]

 The skid part of the pickling tank according to the present invention thus constructed has the skid cap 4 having excellent wear resistance fitted on the upper end of the brick 3, so that it can be continuously used for a long time as compared with the conventional one. The same is true. However, in the present invention, unlike the prior art, since the mold release layer 8 and the acid resistant mortar layer 9 are sequentially formed between the recess 5 at the upper end of the lengh 3 and the rubber sheet 7, the brick 3 and the rubber sheet are formed. Thus, the area between 7 and 7 is completely filled with the acid resistant mortar layer 9. For this reason, even if the dimensional accuracy of the concave portion 5 of the brick 3 is low, there is no fear that the skid cap 4 will ratt or shift during use, and stable operation is possible.

Further, in the present invention, since the release layer 8 is interposed, the rubber sheet 7 does not adhere to the brick 3 unlike the conventional case. That is, the release paper used as the release layer 8 is eroded by being attacked by hydrochloric acid or the like in the tank and is in a molten state, so that a non-adhesive layer is provided between the acid-resistant mortar layer 9 and the recess 5 of the brick 3. To form. For this reason, when the skid cap 4 is worn, the skid cap 4 can be easily removed from the recess 5 of the brick 3. Therefore, according to the present invention, the work of replacing the skid cap 4 can be easily performed. Since the force pressing the skid cap 4 toward the concave portion 5 of the brick 3 acts during use, the existence of the non-adhesive layer does not cause any trouble.

[0012]

[Effect of the device]

 As described in detail above, since the skid portion of the pickling tank of the present invention is formed by sequentially forming the release layer and the acid resistant mortar layer between the concave portion at the upper end of the brick and the rubber sheet, Even if the dimensional accuracy on the brick side is low, the skid cap will not rattle or shift, and if you want to replace the skid cap, you can easily remove the skid cap. . Therefore, the present invention has a great practical value as a skid part of a pickling tank which solves the conventional problems.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an essential part of an embodiment of the present invention.

FIG. 3 is a sectional view showing an essential part of another embodiment of the present invention.

[Explanation of symbols]

 3 Brick 4 Skid cap 5 Recess 7 Rubber sheet 8 Release layer 9 Acid resistant mortar layer

Claims (1)

[Scope of utility model registration request] 1. In a skid part of a pickling tank in which a skid cap is fitted in a recess formed in the upper end of a brick via a rubber sheet, a release layer is provided between the recess in the upper end of the brick and the rubber sheet. A skid part of a pickling tank characterized by sequentially forming an acid-resistant mortar layer.