JPH08247664A - Air-cooled wall anchor structure of furnace - Google Patents

Abstract

PURPOSE: To stabilize the whole structure by preventing the joint breakage of all bricks consisting of an air-cooled wall, and preventing the movement of the bricks. CONSTITUTION: A base part of an anchoring metal piece 9 is loosely fitted to a supporting metal piece 5 provided on a partitioning plate 4 of an air-cooled wall by bolts 10, engagement grooves 13 are formed opposite to each other in the width direction of the opposite surface of a pair of upper and lower bricks 24 to constitute the air-cooled wall, a heat resistant rod-shaped member 14 to be fitted across the engagement grooves 13, 13 of the upper and lower bricks is engaged with an engagement recessed part 12 of the anchoring metal piece 9, and the brick 2 is prevented from being moved in the direction orthogonal to the operation surface through this anchoring metal piece 9 and the rod- shaped member 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-cooled wall anchor structure capable of preventing the bricks constituting the air-cooled wall of a furnace from overhanging and ensuring a stable structure.

[0002]

2. Description of the Related Art For example, in a large refuse incinerator or the like, FIG.
As shown in the whole cross section, the air-cooled wall structure is adopted to protect the furnace wall refractory in the hottest area S in the furnace and to prevent the clinker from adhering to the furnace wall refractory inside surface. There is.

In this air-cooling wall 1, as shown by a dotted arrow in FIG. 7, an air flow path is formed in a zigzag shape so that the cooling air flows in the rear of the furnace wall refractory in an ascending → descending → ascending manner. .

As a general example of the air-cooled wall structure, there is one disclosed in Japanese Utility Model Laid-Open No. 1-117449. In this one, the bricks forming the side wall of the high temperature region of the furnace are arranged in parallel or in a size corresponding to this, and bolt engaging grooves are provided on the surfaces of the bricks adjacent to each other. The air-cooling wall is configured by inserting it into a partition plate forming the outer wall of the air-cooling box and fastening it with a nut.

[0005]

However, in the air-cooled wall structure described in the above publication, since the bricks connected to the bolts are fixed to the partition plate of the air-cooled box, overhang into the furnace can be prevented. Intermediate bricks that are not fixed to the partition plate cause joint breakage during use and move inward (overhang)
However, there is a problem in that the structure of the entire furnace wall can no longer be maintained due to the movement to the side of the air-cooling box, which hinders the operation.

In view of this, the present invention prevents joint breakage of all bricks constituting the air-cooling wall, can prevent movement of the bricks, stabilizes the structure of the entire furnace wall, and stabilizes the operation. It is an object of the present invention to provide an air cooling wall anchor structure for a furnace that can be secured.

[0007]

As a means for solving the problems of the above-mentioned prior art, the present invention is to loosen the base of the anchor metal fitting to the support metal fitting provided on the partition plate of the air-cooling wall with bolts, A heat-resistant rod-shaped member which is formed such that the engaging grooves are opposed to each other in the width direction of the facing surfaces of the upper and lower bricks forming the air-cooling wall, and the engaging grooves are fitted so as to straddle the engaging grooves of the upper and lower bricks. It is characterized in that it engages with the engagement recess of the anchor metal fitting, and prevents the brick from moving in a direction perpendicular to the working surface through the anchor metal fitting and the rod-shaped material.

[0008]

Since the heat-resistant rod-shaped member fitted across the engagement groove formed in the width direction of the facing surfaces of the pair of upper and lower bricks is engaged with the anchor metal fitting loosely attached to the air cooling box side, All bricks are restrained from moving in the furnace (or in the opposite direction), preventing brick breakage and the resulting overhang.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings.

FIG. 1 shows a front view of a part of an embodiment of an air-cooling wall according to the present invention, FIG. 2 is the same plane, and FIG. 3 is AA of FIG.
The cross section is shown in the direction of the arrow, and the bricks 2 used are of a normal shape or of a size corresponding thereto, and show a case where a pair of upper and lower pairs are stacked in a staggered manner.

.. are provided for every plurality of bricks 2 on the inner surface side of a partition plate 4 which forms an air cooling box by partitioning an air cooling zone 3 through which cooling air passes. FIG.
In the embodiment shown in FIGS. 3A to 3C, the support member 5 is composed of the angle member 6 welded to the partition plate 4 and the support plate 7 welded to the angle member 6. A U-shaped cutout hole 8 is formed.

The anchor metal fitting 9 is made of a metal plate material, and its base is loosely attached by a bolt 10 passing through the cutout hole 8 and a nut 11 fastened thereto. A semicircular engagement recess 12 is formed on the lower side near the tip of the anchor fitting 9.

As shown in FIG. 4, engagement grooves 13, 13 having a substantially semicircular cross section in the width direction (arrangement direction) of the bricks correspond to the facing surfaces of the bricks 2, 2 forming a pair. A heat-resistant rod-shaped member 14 such as round steel is fitted so as to straddle the engagement grooves 13 and 13, and the engagement recess 12 of the anchor metal fitting 9 is engaged with the rod-shaped member 14 from above. It is supposed to be done. The engagement recess 12 may be provided on the upper side of the anchor fitting 9.

The upper brick 2 at the position of the anchor metal fittings 9, 9 ... Has a shallow recess 15 into which the anchor metal fitting 9 can enter, and the recesses 15 of adjacent bricks 2, 2 are formed. The anchor metal fitting 9 is inserted into the space formed by 15, and the engaging recess 12 is joined to the heat resistant rod-shaped material 14 as described above.

[0015] For the thus, the use of a length of spanning the entire width of the cooling wall a rod member 14 as seen in FIG. 2, the type of brick bricks 2 ₁ having a concave 15 on the right side There are three types: a brick 2 ₂ having a recess 15 on the left side and a brick 2 ₃ having no recess. In addition, the recess 15
Assuming that the anchor metal fitting 9 is completely accommodated, it is not necessary to form the recesses 15 and 15 in the adjacent bricks 2 ₁ and 2 ₂ , respectively. Therefore, the type of brick in this case is the recess 15
There are two types of bricks, one with and one without.

In consideration of workability during construction, the rod-shaped member 14
When the dimension is set to be slightly longer than the mounting interval of the anchor metal fittings 9,9, the anchor metal fittings 9,9 should be arranged next to each other with an interval of one brick as shown in FIG. To support the next rod-shaped member 14. Therefore, in this case, the brick 2 ₁ having the recess 15 on the right side,
Brick 2 ₂ having a concave 15 on the left side, and bricks 2 ₄ having a concave defect 15 and 15 on the left and right sides, and four types of the no bricks 2 ₃ concave.

FIG. 6 is a plan view of the case where the support fitting 5 is composed of only the angle member 6. A vertically long bolt hole is made in the angle member 6 and an anchor fitting 9 is inserted by a bolt 10 inserted therethrough.
It shows a case where the base portion of is directly loosened. The recess 15 into which the anchor metal fitting 9 is inserted is illustrated as being provided only on one of the adjacent bricks 2. Therefore, also in this case, there are two types of bricks, 2 ₁ and 2 ₃ .

In each of the above figures, reference numeral 16 indicates a joint made of mortar or the like.

In order to construct an air-cooled wall, an anchor metal fitting 9 is loosely attached to a support metal fitting 5 provided on the partition plate 4 with bolts 10 and nuts 11, and then the bottom brick 2 is engaged with the engaging groove. 13 are arranged so as to face upward, and the heat-resistant rod-shaped member 14 is fitted over the engagement groove 13 of each brick 2. Then, the engaging recesses 12 of the anchor fittings 9 are engaged with the rod-shaped members 14 from above.

Next, on the bricks 2, 2 ... Mortar 1
Brick 2 ₁ , 2 ₂ having a recessed portion 15 at the position of the anchor metal fitting 9 is used by placing 6 on which the engaging grooves 13 of the upper bricks 2, 2 ... And avoid interference with the anchor metal fitting 9.

After the construction of the upper and lower bricks is completed in this way, the air-cooling wall can be constructed by successively constructing the next-stage bricks in the same procedure as described above.

In all the bricks of the air-cooling wall thus constructed, the heat-resistant rod-shaped member 14 fitted across the engaging groove 13 formed in the width direction of the facing surface of the pair of bricks is a partition of the air-cooling box. By engaging with the anchor metal fittings 9 loosely attached to the plate 4, movement in the furnace direction or in the opposite direction is restricted, and joint breakage between bricks and accompanying overhang can be reliably prevented.

[0023]

As described above, according to the present invention, the heat-resistant rod-like material fitted over the grooves formed on the facing surfaces of all the vertically paired bricks to be stacked is loosely attached to the air-cooled box side. By engaging the engagement recesses of the anchor metal fittings, the movement of all bricks in the direction perpendicular to the working surface is restricted, and no joint breakage occurs during use. It can be prevented and the structural stability of the furnace can be maintained for a long time. Regarding construction,
Since it suffices to engage the anchor metal fittings with the heat-resistant rod-shaped material fitted into the engagement groove of the brick, the work is simplified, quick construction can be performed, and the construction period can be shortened.

[Brief description of drawings]

FIG. 1 is a partial front view showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view showing upper and lower bricks.

FIG. 5 is a view corresponding to FIG. 2 showing another embodiment of the present invention.

FIG. 6 is a view corresponding to FIG. 2 showing still another embodiment.

FIG. 7 is a cross-sectional view showing an air cooling wall installation area of a large-scale waste incinerator.

[Explanation of symbols]

 1 Air Cooling Wall 2 Brick 3 Air Cooling Zone 4 Partition Plate 5 Supporting Metal 6 Angle Material 7 Supporting Plate 8 Notch Hole 9 Anchor Metal Fitting 10 Bolt 12 Engagement Recess 13 Engagement Groove 14 Heat Resisting Rod 15 Recess 16 Mortar (joint)

Claims (1)

[Claims] 1. A base of an anchor metal fitting is loosely attached to a support metal fitting provided on a partition plate of an air cooling wall by a bolt, and an engaging groove is made to face in a width direction of facing surfaces of a pair of upper and lower bricks constituting the air cooling wall. The heat-resistant rod-shaped member which is formed so as to face each other and is fitted so as to straddle the engagement grooves of the upper and lower bricks and the engagement recess of the anchor metal fitting are engaged with each other. An air-cooled wall anchor structure for a furnace, characterized in that it prevents bricks from moving in a direction perpendicular to the working surface of the brick.