SU1236288A1 - Device for fixing fibre lining to furnace jacket - Google Patents

Description

The invention relates to the furnace industry and is intended for use in industrial, for example thermal, furnaces.

The purpose of the invention is to save heat resistance HOi o material and increase the installation strength of the device.

FIG. 1 shows a device for attaching a fibrous lining; in fig. 2 shows section A-A in FIG. one; in fig. 3-5 different types of anchors.

In the flat part of aimepa 1, a hole 2 is made into which two crown-3 stamps 3 are inserted, installed at an angle to one another in the horizontal plane. The opposite ends of the crowns are inserted into the brackets 4, which are attached to the furnace casing 5 at such a distance from one another, so that the two brackets and the line between the brackets form a triangle. The anchor with its bent ends 6 is inserted into the refractory fibrous block 7, and the layer of thermal insulation materials 8 and 9 is tightly clamped between the lining block and the furnace casing.

The liqueur, fixed by two crown fronts, located at an angle, does not have freedom of dilution in any naiipaB. ie, the lines are in the plane of the triangle, and since the triangle is rigid, the angle, nriho.d.ys in place of the attachment of the shanks to the anchor, retains its position in space under any dynamic loads, since the other two angles are fixed on the furnace shell, and in the upright position there is no movement due to the fact that the anchor rests on the block from the bottom with a flat part, and the next block is on top.

The anchor can be made in various configurations, for example, it can be a rectangle, a triangle, a polygon, the corners of which are bent at a right angle to the flat part of the anchor up or down (Fig. 3-5) or part is down, and part is - up.

The number of bent ends in each direction is selected based on the specific conditions of use of this structure. When attaching the side blocks, the ends of the anchor are bent in the same direction, and when the side and arch blocks are fastened simultaneously in different directions. A necessary condition in the manufacture of such an anchor is that at least one bent corner lies in a plane intersecting the plane of another bent corner. In this case, the movement of the anchor B in the direction of the plane of the bent ends is stopped by another bent end located at an angle to the first node, which leads to an increase in mounting strength

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with comprehensive dyna.micheskie loads. The flat part of the anchor has a simple form: rectangle, square, triangle, etc., as a result of which there is no waste in the manufacture of the entire batch, which saves heat-resistant alloys. In addition, the brackets in the proposed fastener are made separately from 0-4-8 mm rods and the anchor itself is considerably smaller in area than the ones, which also leads to savings of heat-resistant metal.

The mounting is done in the following way.

At the furnace casing at the height of the lining block two brackets are welded at a distance of 100-120 mm. An anchor is installed on the block in such a way that sharp bent corners are fixed in the block mass, preventing its possible movement in any direction. Both brackets are inserted into the center hole of the anchor, and the opposite ends are inserted into the corresponding bracket, so the structure forms a "hard three; 1X1ik. The cronp tails are inserted from above into the pre-fixed anchor, and such an installation is made inconvenient during () work.

The fabrication of anchors can be practically wasteless, since triangles, squares or rectangles without steel scraps can be seen from a sheet or strip of metal. You can make a zag forging and bend the corners by stamping.

The proposed device allows to increase the installation strength of the lining during transportation due to the fact that the movement of the anchor under dynamic loads is practically excluded as a result of observing that at least one bent angle of the anchor must lie in a plane intersecting the plane of another bent corner, as a result of which one locks bent plane another.

In addition, the anchor is connected to the casing by means of at least two two hinges, which form a hard triangle with the line between the brackets, which prevents movement of the anchor under dynamic loads. Manufacturing anchors of the proposed configuration saves costly heat-resistant metal, eliminates WASTE) when it is stamped. In this case, due to the decrease in the total mass of the device for fastening the fibrous lining, heat losses through the anchor device are reduced, which leads to the saving of electric power.

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Claims (1)

DEVICE FOR FASTENING FIBER LAYING TO THE FURNACE HOUSING, containing an anchor mounted on the casing, made in the form of a plate with a hole and bent ends recessed in the lining, characterized in that, in order to reduce the cost and increase the strength, the bent ends of the anchor are placed mutually in cross and the anchor is mounted on the casing of the furnace by means of brackets placed in the plane of the anchor, made with bent ends, one of which is fixed on the casing, and the other is installed in the hole of the anchor with the formation GLA between the brackets. Fig. / (L s u 05 S QO QO