JPH069748U - Plate brick for slide valve - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a plate brick for a slide valve, which can prevent cracks from occurring and extend the life. [Structure] In a plate brick 2 for a slide valve whose outer peripheral portion is constrained by an iron plate hoop 1, at least one groove or recess is provided in the outer peripheral portion of the plate brick 2 corresponding to the position of a brick fixing metal piece 3 provided in a slide case 7. 4 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plate brick of a quick type slide valve device that can be converted online.

[0002]

[Prior art]

 The plate bricks of the slide valve device are made of steel plate hoops on the outer periphery of the side surface of the plate bricks to prevent cracks from being generated by the fixing means, to prevent cracks from expanding and expanding during use, and to improve workability when replacing the plate bricks. The restrained one is used.

[0003]

[Problems to be solved by the device]

 Conventionally, for example, as shown in FIG. 3, for fixing an iron plate hoop (1) wound plate brick (2) of this kind in a housing or a slide case, a brick fixing hardware (3) such as a tightening bolt method or an eccentric cam method is used. It is known that there is a defect that cracks (5) occur in the plate brick (2) near the iron plate hoop (1) abutting part at the tip of the fixed brick hardware in this method. There is. FIG. 9 shows a plan view of an example of the side tightening method.

The present invention provides a mechanism for preventing the generation of cracks originating from the contact portion of a brick fixed metal object.

[0005]

[Means for Solving the Problems]

 The present inventors have developed the present invention as a result of various studies to solve the above-mentioned defects of the conventional method, and the technical constitution of the present invention is that the outer peripheral portion is an iron plate as specified in the claims for utility model registration. In the slide valve plate brick (2) constrained by the hoop (1), at least one groove is formed in the outer peripheral portion of the plate brick (2) corresponding to the position of the brick fixing hardware (3) provided in the slide case (7). Alternatively, a slide valve plate brick characterized by having a recess (4) will be described in detail with reference to the accompanying drawings as a specific example of the present invention.

FIG. 1 is a plan view of a plate brick of the present invention, and FIG. 2 is a cross-sectional view taken along line II-II of FIG.

As shown in the figure, a groove or a recess (4) is provided in a part of a slide valve plate brick (2) whose outer peripheral portion is restrained by an iron plate hoop (1). This groove or recess (4) corresponds to the position where the tip of the brick fixing hardware (3) provided in the slide case (7) for storing and holding the plate brick (2) contacts and tightens. Plates are provided on the outer periphery of bricks (2) with an appropriate depth or width. In these figures, (6) is a molten steel flow hole provided in the plate brick.

Crack Generation Test: A crack generation test was performed on the grooved plate bricks of FIGS. 4 and 5 and the conventional plate bricks having no groove of FIGS. The specifications of the plate brick are as follows: Iron plate hoop thickness 3.2 mm Groove width: 20 mm Depth: 7 mm Pressing from the outside of the iron plate hoop, the load (t) is the horizontal axis, and the deformation amount of the iron plate hoop FIG. 8 shows the result of plotting (mm 2) on the vertical axis. In other words, the conventional product with no groove is 9. A crack was generated by applying a pressure of 5 t (FIG. 9), and the deformation amount of the iron plate case at that time was 1 mm or less (curve A). As shown in the curve B, the product of the present invention did not show cracks (5) in the plate bricks (2) even when the deformation amount of the iron plate hoop reached 4.5 mm under pressure of 10 t or more.

[0009]

[Effect of device]

 By adopting the structure of the present invention, the generation of cracks in the plate brick is reduced, and the life of the plate brick is improved by 30 to 50% as compared with the conventional product.

[Submission date] April 16, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction content]

[0001]

[Industrial applications]

This invention relates to plates practitioners tiles replaceable quick-type slide valve device online.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

[0003]

[Problems to be solved by the device]

Conventionally, for example, as shown in FIG. 3, in order to fix an iron plate hoop (1) wound plate brick (2) of this kind in a housing or a slide case, a brick fixing hardware (3) such as a tightening bolt method or an eccentric cam method is used. single point support system is employed by, but it is known that there is a defect cracks (5) is generated in the plate brick (2) in the vicinity of iron hoop (1) abutment brick fixing hardware tip in this manner There is. FIG. 9 shows a plan view of an example of the side tightening method.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

FIG. 1 is a plan view of a plate brick of the present invention, and FIG. 2 is a cross-sectional view taken along line II of FIG.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

Crack Generation Comparison Test: A crack generation test was performed on the grooved plate bricks of FIGS. 4 and 5 and the conventional grooved plate bricks of FIGS. 6 and 7. The specifications of the plate brick are as follows: Iron plate hoop thickness 3.2 mm Groove width: 20 mm Depth: 7 mm Pressing from the outside of the iron plate hoop, the load (t) is the horizontal axis, and the deformation amount of the iron plate hoop FIG. 8 shows the result of plotting the amount of deformation with (mm 2) as the vertical axis. That is, in the conventional product without the groove, a crack was generated at a pressure of 9.5 t (Fig. 9), and the deformation amount of the iron plate case at that time was 1 mm or less (curve A). This invention product, as shown in curve B, 10t than the pressurizing even amount of deformation of the iron plate hoop reached 4.5 mm, cracking (5) was observed on the plate bricks (2).

[Brief description of drawings]

FIG. 1 is a plan view of the device of the present invention.

2 is a cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a plan view of a conventional product

FIG. 4 is a plan view of a crack initiation test for a grooved brick.

5 is a cross-sectional view of FIG.

FIG. 6 is a plan view of a crack initiation test of a grooveless brick.

7 is a cross-sectional view of FIG.

FIG. 8 is a graph showing a pressurization test result.

FIG. 9: Plate brick with cracks generated after pressure test of ungrooved brick

[Explanation of symbols]

 1 Iron plate hoop 2 Plate brick 3 Brick fixing hardware 4 Groove or recess 5 Crack 6 Molten steel flow hole 7 Slide case 8 Tightening bolt

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 16, 1992

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a plan view of the present invention.

2 is a cross-sectional view taken along the line II of FIG.

FIG. 3 is a plan view of a conventional product

FIG. 4 is a plan view of a crack initiation test for a grooved brick.

5 is a cross-sectional view of FIG.

FIG. 6 is a plan view of a crack initiation test of a grooveless brick.

7 is a cross-sectional view taken along the line II-II in FIG.

FIG. 8 is a graph showing a pressurization test result.

FIG. 9: Plate brick with cracks generated after pressure test of ungrooved brick

[Explanation of symbols] 1 iron plate hoop 2 plate brick 3 brick fixing hardware 4 groove or recess 5 crack 6 molten steel flow hole 7 slide case 8 tightening bolt

[Procedure correction 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

Claims (1)

[Scope of utility model registration request] 1. A plate brick (2) for a slide valve, the outer periphery of which is restricted by an iron plate hoop (1), the plate brick (2) corresponding to the position of a brick fixture (3) provided in a slide case (7). A plate brick for a slide valve, characterized in that at least one groove or recess (4) is provided on the outer periphery of the plate brick.